/**
 * DevForge — 开发者工具/开源社区 主题样式
 * GitHub 暗色风格 | 深色卡片 + 绿色强调 | 技术文档排版
 * 纯原生 CSS，无框架依赖
 */

/* ============================================================
   CSS 变量体系 — GitHub Dark 风格
   ============================================================ */
:root {
  /* 基底色 */
  --bg-canvas: #0D1117;
  --bg-overlay: #161B22;
  --bg-card: #161B22;
  --bg-card-hover: #1C2128;
  --bg-input: #0D1117;
  --bg-subtle: rgba(255, 255, 255, 0.03);

  /* 强调色 */
  --green: #2EA043;
  --green-hover: #3FB950;
  --green-dim: rgba(46, 160, 67, 0.15);
  --orange: #D29922;
  --orange-dim: rgba(210, 153, 34, 0.15);
  --blue: #58A6FF;
  --blue-dim: rgba(88, 166, 255, 0.12);
  --purple: #BC8CFF;
  --red: #F85149;

  /* 文字色阶 */
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --text-muted: #484F58;
  --text-link: #58A6FF;

  /* 边框 */
  --border-default: #30363D;
  --border-subtle: #21262D;
  --border-emphasis: #484F58;
  --border-green: rgba(46, 160, 67, 0.4);

  /* 阴影 */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 1px 6px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow-green: 0 0 20px rgba(46, 160, 67, 0.15);

  /* 圆角 — GitHub 风格小圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  /* 间距 */
  --section-py: 88px;
  --container-max: 1200px;
  --header-h: 64px;

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 100ms;
  --duration-normal: 200ms;
  --duration-slow: 400ms;

  /* 字体 — Inter (正文) + JetBrains Mono (代码) */
  --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, 'Liberation Mono', monospace;
}

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

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

body {
  background: var(--bg-canvas);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: rgba(46, 160, 67, 0.3);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-canvas); }
::-webkit-scrollbar-thumb { background: var(--border-emphasis); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

a { color: var(--text-link); text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
a:hover { color: var(--green-hover); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}
input::placeholder, textarea::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.35;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--green);
  margin-bottom: 0.5rem;
}
.section-tag::before {
  content: '#';
  color: var(--text-muted);
}

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.25rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.code-text {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--green-hover);
}

/* ============================================================
   布局容器
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-py) 0;
}

/* ============================================================
   Header 头部 — GitHub 风格深色固定导航
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-normal), box-shadow var(--duration-normal);
}

.header.scrolled {
  background: rgba(13, 17, 23, 0.98);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.5);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-right: auto;
  color: var(--text-primary);
}
.header__logo:hover { color: var(--text-primary); }

.header__logo-icon {
  width: 32px;
  height: 32px;
  background: var(--green);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #fff;
}

.header__logo-name {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* 主导航 */
.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.header__nav-link {
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
  white-space: nowrap;
}
.header__nav-link:hover,
.header__nav-link.active {
  color: var(--text-primary);
  background: var(--bg-subtle);
}

/* 导航下拉 — GitHub 风格 */
.header__nav-item { position: relative; }
.header__nav-item:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 180px;
  padding: 4px 0;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: all var(--duration-fast);
  z-index: 60;
}

.header__dropdown a {
  display: block;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}
.header__dropdown a:hover {
  color: var(--text-primary);
  background: var(--bg-subtle);
}

/* 头部 CTA */
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 16px;
  padding: 7px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
  white-space: nowrap;
}
.header__cta:hover {
  border-color: var(--green);
  color: var(--green-hover);
  background: var(--green-dim);
}
.header__cta i { color: var(--orange); }

/* 汉堡菜单（移动端） */
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  z-index: 110;
  margin-left: 8px;
  transition: border-color var(--duration-fast);
}
.hamburger:hover { border-color: var(--text-muted); }

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-out);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 80%;
  max-width: 320px;
  background: var(--bg-overlay);
  border-right: 1px solid var(--border-default);
  z-index: 120;
  transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav__inner { padding: 20px; padding-top: 80px; }

.mobile-nav__link {
  display: block;
  padding: 12px 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}
.mobile-nav__link:hover { color: var(--text-primary); background: var(--bg-subtle); }

.mobile-nav__sub {
  padding-left: 16px;
  margin-bottom: 4px;
  display: none;
}
.mobile-nav__sub.open { display: block; }
.mobile-nav__sub a {
  display: block;
  padding: 8px 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}
.mobile-nav__sub a:hover { color: var(--text-primary); }

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 115;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal);
}
.mobile-nav__overlay.show { opacity: 1; pointer-events: auto; }

/* ============================================================
   按钮系统 — GitHub 风格
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  cursor: pointer;
  transition: all var(--duration-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
  font-weight: 600;
}
.btn--primary:hover {
  background: var(--green-hover);
  border-color: var(--green-hover);
  color: #fff;
  box-shadow: var(--shadow-glow-green);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-default);
}
.btn--outline:hover {
  border-color: var(--green);
  color: var(--green-hover);
  background: var(--green-dim);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn--ghost:hover {
  color: var(--text-primary);
  background: var(--bg-subtle);
}

.btn--ghost-green {
  background: transparent;
  color: var(--green);
  border-color: rgba(46, 160, 67, 0.25);
}
.btn--ghost-green:hover {
  background: var(--green-dim);
  color: var(--green-hover);
}

.btn--orange {
  background: var(--orange);
  border-color: var(--orange);
  color: #000;
  font-weight: 600;
}
.btn--orange:hover {
  background: #E5B045;
  color: #000;
}

/* ============================================================
   卡片系统 — GitHub 深色卡片
   ============================================================ */
.card {
  display: block;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
  color: var(--text-secondary);
  transition: all var(--duration-normal) var(--ease-out);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-emphasis);
  box-shadow: var(--shadow-card-hover);
  color: var(--text-secondary);
  transform: translateY(-1px);
}

.card--green-border:hover {
  border-color: var(--green);
}

.card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-canvas);
  border-bottom: 1px solid var(--border-subtle);
}
.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}
.card:hover .card__image img { transform: scale(1.03); }

.card__body { padding: 18px; }

.card__tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--blue);
  background: var(--blue-dim);
  border-radius: 3px;
  margin-bottom: 6px;
}

.card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ============================================================
   Hero Banner — 代码风格
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  background: var(--bg-canvas);
}

/* 装饰代码背景 */
.hero__bg-code {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.04;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-primary);
  -webkit-user-select: none;
  user-select: none;
  padding: 80px 40px;
  white-space: pre-wrap;
  word-break: break-all;
}

.hero .swiper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg,
    rgba(13, 17, 23, 0.7) 0%,
    rgba(13, 17, 23, 0.3) 40%,
    rgba(13, 17, 23, 0.92) 100%);
}

.hero__content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 160px 24px 100px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--green);
  margin-bottom: 1.25rem;
  padding: 6px 14px;
  border: 1px solid rgba(46, 160, 67, 0.25);
  border-radius: 20px;
  background: var(--green-dim);
  letter-spacing: 0.03em;
}

.hero__title {
  font-family: var(--font-sans);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
  max-width: 800px;
}
.hero__title mark {
  background: none;
  color: var(--green-hover);
}

.hero__code-line {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.8vw, 1.1rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 700px;
}
.hero__code-line .keyword { color: var(--red); }
.hero__code-line .string { color: var(--green); }
.hero__code-line .function { color: var(--purple); }

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Hero Swiper 分页器 */
.hero-pagination {
  display: flex;
  gap: 8px;
  margin-top: 24px;
}
.hero-pagination .swiper-pagination-bullet {
  width: 32px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.2);
  opacity: 1;
  transition: all var(--duration-normal);
}
.hero-pagination .swiper-pagination-bullet-active {
  width: 48px;
  background: var(--green);
  box-shadow: 0 0 10px rgba(46, 160, 67, 0.5);
}

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position: relative;
  height: 280px;
  overflow: hidden;
  background: var(--bg-overlay);
  border-bottom: 1px solid var(--border-subtle);
}
.inner-banner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.inner-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(13,17,23,0.6) 0%,
    rgba(13,17,23,0.4) 50%,
    var(--bg-canvas) 100%);
}
.inner-banner__content {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}
.inner-banner__title {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}
.inner-banner__subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* 面包屑 */
.breadcrumb-bar {
  background: var(--bg-overlay);
  border-bottom: 1px solid var(--border-subtle);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--green); }
.breadcrumb i { font-size: 0.55rem; }

/* ============================================================
   首页模块 — 社区数据统计
   ============================================================ */
.stats-section {
  background: var(--bg-overlay);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 28px 16px;
}

.stat-item__number {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--green-hover);
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-item__label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================================
   首页模块 — 社区入口
   ============================================================ */
.community-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.community-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 20px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-align: center;
  transition: all var(--duration-normal);
  cursor: pointer;
}
.community-card:hover {
  border-color: var(--green);
  color: var(--text-primary);
  box-shadow: var(--shadow-glow-green);
  transform: translateY(-2px);
}

.community-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--green-hover);
}

.community-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.community-card__desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ============================================================
   首页模块 — CTA
   ============================================================ */
.cta-section {
  text-align: center;
  padding: 80px 0 100px;
  position: relative;
}
.cta-section__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-green);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.cta-section__inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.cta-section__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

/* ============================================================
   列表页 — 网格布局
   ============================================================ */
.list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.list-header {
  text-align: center;
  margin-bottom: 40px;
}
.list-header h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

/* 子栏目过滤栏 */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 32px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.filter-bar::-webkit-scrollbar { display: none; }

.filter-bar a {
  display: inline-flex;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  white-space: nowrap;
  transition: all var(--duration-fast);
  flex-shrink: 0;
}
.filter-bar a:hover,
.filter-bar a.active {
  color: var(--text-primary);
  border-color: var(--green);
  background: var(--green-dim);
}

/* ============================================================
   详情页
   ============================================================ */
.detail {
  max-width: 860px;
  margin: 0 auto;
}

.detail-gallery {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  border: 1px solid var(--border-default);
}
.detail-gallery .swiper-slide { aspect-ratio: 16/9; }
.detail-gallery .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail__header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.detail__title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  margin-bottom: 8px;
}
.detail__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.detail__meta-row i { color: var(--green); margin-right: 3px; }

/* 参数网格 */
.detail__params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 28px;
}
.detail__param {
  padding: 14px 12px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  text-align: center;
}
.detail__param-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.detail__param-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.detail__body {
  color: var(--text-secondary);
  line-height: 2;
  font-size: 0.92rem;
}
.detail__body img {
  border-radius: var(--radius-sm);
  margin: 20px 0;
  max-width: 100%;
}
.detail__body p { margin-bottom: 14px; }
.detail__body h2, .detail__body h3, .detail__body h4 {
  color: var(--text-primary);
  margin-top: 28px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.detail__body code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  padding: 2px 6px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  color: var(--orange);
}
.detail__body pre {
  font-family: var(--font-mono);
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  margin: 16px 0;
  line-height: 1.6;
  font-size: 0.83rem;
}

/* 上下篇导航 */
.detail__pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
}
.detail__pager a { color: var(--text-secondary); }
.detail__pager a:hover { color: var(--green); }

/* 相关推荐 */
.related-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 48px 0 20px;
  color: var(--text-primary);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ============================================================
   Tab 切换组件
   ============================================================ */
.tab-nav {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-default);
}
.tab-nav button {
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast);
  margin-bottom: -1px;
}
.tab-nav button:hover { color: var(--text-primary); }
.tab-nav button.active {
  color: var(--green);
  border-bottom-color: var(--green);
}
.tab-panel { display: block; }
.tab-panel.hidden { display: none; }

/* ============================================================
   联系我们/留言页
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  transition: all var(--duration-fast);
}
.contact-info__item:hover { border-color: var(--border-emphasis); }

.contact-info__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--green-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-hover);
  flex-shrink: 0;
  font-size: 0.9rem;
}

.contact-info__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1px;
}
.contact-info__value {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 联系表单 */
.contact-form-card {
  padding: 32px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
}

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.form-group label .required { color: var(--red); }

.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: all var(--duration-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}

textarea.form-control {
  resize: vertical;
  min-height: 96px;
}

/* ============================================================
   搜索页
   ============================================================ */
.search-box { max-width: 680px; margin: 0 auto; }

.search-form-row {
  display: flex;
  gap: 8px;
}
.search-input-wrap {
  position: relative;
  flex: 1;
}
.search-input-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.search-input-wrap input {
  width: 100%;
  padding: 12px 16px 12px 38px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: all var(--duration-fast);
}
.search-input-wrap input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}

.search-result-item {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
  margin-bottom: 8px;
  color: var(--text-secondary);
}
.search-result-item:hover {
  border-color: var(--border-emphasis);
  background: var(--bg-card-hover);
}
.search-result-item__thumb {
  width: 90px;
  height: 70px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-canvas);
}
.search-result-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.search-result-item__info { flex: 1; min-width: 0; }
.search-result-item__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-item__date {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 2px;
}
.search-result-item__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
   博客列表 — 时间线风格
   ============================================================ */
.blog-list {
  max-width: 760px;
  margin: 0 auto;
}

.blog-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--duration-fast);
}
.blog-item:hover {
  padding-left: 8px;
}

.blog-item__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding-top: 2px;
  min-width: 100px;
}

.blog-item__content { flex: 1; }
.blog-item__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  line-height: 1.4;
}
.blog-item__title:hover { color: var(--text-link); }
.blog-item__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-item__tags {
  display: flex;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.blog-item__tags span {
  display: inline-block;
  padding: 1px 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3px;
  margin-top: 44px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}
.pagination a:hover {
  background: var(--bg-overlay);
  color: var(--text-primary);
}
.pagination .active {
  background: var(--green);
  color: #fff;
  font-weight: 600;
}
.pagination .disabled {
  color: var(--text-muted);
  pointer-events: none;
}

/* ============================================================
   空状态
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 56px 20px;
}
.empty-state i {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
}
.empty-state p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================================
   在线客服按钮
   ============================================================ */
.kefu-btn {
  position: fixed;
  right: 20px;
  bottom: 32px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  z-index: 90;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  transition: all var(--duration-normal);
}
.kefu-btn:hover {
  background: var(--green-hover);
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(46, 160, 67, 0.3);
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 92px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  cursor: pointer;
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-normal);
}
.back-top.show {
  opacity: 1;
  pointer-events: auto;
}
.back-top:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* ============================================================
   Footer 底部 — GitHub 极简风格
   ============================================================ */
.footer {
  background: var(--bg-overlay);
  border-top: 1px solid var(--border-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  padding: 56px 0 36px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.footer__brand-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 14px 0;
}

.footer__social {
  display: flex;
  gap: 8px;
}
.footer__social a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--duration-fast);
  border: 1px solid transparent;
}
.footer__social a:hover {
  background: var(--green-dim);
  color: var(--green-hover);
  border-color: var(--green);
}

.footer__col-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}
.footer__links a:hover { color: var(--green); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.footer__contact-item i {
  color: var(--green);
  margin-top: 2px;
  flex-shrink: 0;
}

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 0;
}
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 6px;
}
.footer__bottom a { color: var(--text-muted); }
.footer__bottom a:hover { color: var(--green); }

/* 友情链接 */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 14px 0;
}
.friend-links__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-shrink: 0;
}
.friend-links a {
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: color var(--duration-fast);
}
.friend-links a:hover { color: var(--green); }

/* ============================================================
   动画系统
   ============================================================ */

/* 终端光标闪烁 */
@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.cursor-blink {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--green-hover);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: cursorBlink 1s step-end infinite;
}

/* 按钮脉冲（CTA） */
@keyframes btnPulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 160, 67, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(46, 160, 67, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 160, 67, 0); }
}
.btn--primary.pulse { animation: btnPulse 2s infinite; }

/* ============================================================
   AOS 覆盖
   ============================================================ */
[data-aos] {
  transition-timing-function: var(--ease-out);
}

/* ============================================================
   Prism.js 代码高亮覆盖（暗色主题用）
   ============================================================ */
pre[class*="language-"] {
  background: var(--bg-overlay) !important;
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-md) !important;
  margin: 16px 0 !important;
}

/* ============================================================
   偏好：减少动画
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   响应式断点 — 平板 (768px - 1023px)
   ============================================================ */
@media (max-width: 1023px) {
  :root { --section-py: 64px; }

  .header__nav { display: none; }

  .hamburger { display: flex; }

  .header__cta { display: none; }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .community-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .list-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail__pager {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }

  .blog-item {
    flex-direction: column;
    gap: 4px;
  }
  .blog-item__date {
    min-width: auto;
  }
}

/* ============================================================
   响应式断点 — 移动端 (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root { --section-py: 48px; }

  .hero {
    min-height: 90vh;
  }
  .hero__content {
    padding: 140px 20px 80px;
  }

  .inner-banner {
    height: 200px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .community-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .list-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .card__body { padding: 14px; }

  .cta-section__inner { padding: 32px 20px; }

  .detail__params {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .contact-form-card { padding: 22px; }

  .search-result-item {
    flex-direction: column;
  }
  .search-result-item__thumb {
    width: 100%;
    height: 140px;
  }

  .back-top { right: 10px; bottom: 88px; }
  .kefu-btn { right: 10px; bottom: 28px; }
}

/* ============================================================
   响应式断点 — 小屏手机 (< 375px)
   ============================================================ */
@media (max-width: 374px) {
  body { font-size: 14px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .community-grid { grid-template-columns: 1fr; }
}

/* June 22 mobile layout: developer tool feed. */
@media(max-width:1023px){
 .container {padding-left:20px;padding-right:20px;min-width:0}
 .page-main,.card,.card__body,.detail,.contact-grid>*,.footer__grid>*,.header__logo {min-width:0}
 .header{z-index:1400}
 .header__inner {height:64px;gap:12px;padding:0 20px}
 .header__logo {flex:1}.header__logo-name {overflow-wrap:anywhere}
 .hamburger {flex-shrink:0;position:relative;z-index:1300}
 .page-inner .inner-banner {margin-top:80px;height:auto!important;min-height:170px}
 .inner-banner__content {padding:28px 20px;min-height:170px;height:auto;overflow-wrap:anywhere}
 .inner-banner__title {font-size:24px;line-height:1.35}
 .inner-banner__subtitle {font-size:13px;line-height:1.6;margin-top:8px;max-width:100%}
 .breadcrumb {padding:12px 20px;overflow-wrap:anywhere;flex-wrap:wrap;line-height:1.7}
 .detail__body {overflow-wrap:anywhere;min-width:0}.detail__body *{max-width:100%;box-sizing:border-box}
 .detail__body img {height:auto}.detail__body table {display:block;overflow-x:auto;max-width:100%}
 .detail__body pre {overflow-x:auto;white-space:pre;max-width:100%}
 .footer__grid {grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 18px;padding:32px 20px 24px}
 .footer__grid>div:first-child {grid-column:1/-1}.footer__contact-item {overflow-wrap:anywhere}
 .footer__brand-desc {font-size:13px;line-height:1.6;margin-bottom:12px}
 .footer__col-title {margin-bottom:10px;padding-bottom:8px}.footer__links a {padding:7px 0}
 .footer__bottom {padding:16px 20px}.footer__bottom-inner {line-height:1.7;overflow-wrap:anywhere}
 .mobile-nav {width:min(86vw,340px);height:100dvh;max-width:340px;overscroll-behavior:contain}
 .mobile-nav__inner {padding:82px 20px 28px}.mobile-nav__link {padding:13px 10px;line-height:1.5}
 .mobile-nav__sub {padding:4px 12px 10px}.mobile-nav__sub a {padding:10px 8px}
 .mobile-nav__sub:not(.open) {display:none}
 .form-input,.form-select,.form-textarea,.form-control {font-size:16px;min-width:0;max-width:100%}
 form [style*="grid-template-columns"] {grid-template-columns:minmax(0,1fr)!important;gap:0!important}
 input[name="checkcode"]{min-width:0;flex:1;width:100px!important}
 .contact-info__item,.contact-info__value {overflow-wrap:anywhere;min-width:0}
 .pagination {margin-top:24px;gap:5px}.prev-next,.detail__pager {overflow-wrap:anywhere;gap:12px}
 [data-aos] {max-width:100%}

 .hero__bg-code{max-width:100%;overflow:hidden}.hero__code-line{overflow-wrap:anywhere;white-space:normal}
 .tab-nav{max-width:100%;overflow-x:auto;white-space:nowrap}.tab-nav button{flex-shrink:0}
 .detail__params{grid-template-columns:repeat(2,minmax(0,1fr));overflow-wrap:anywhere}
 .search-form-row{min-width:0}.search-input-wrap{min-width:0;flex:1}.search-input-wrap input{min-width:0;width:100%}
 .filter-bar{max-width:100%}.contact-form-card{min-width:0}
}
@media(max-width:767px){
 :root{--section-py:34px}
 .section-title{font-size:24px}.section-subtitle{font-size:14px}.section-tag{font-size:11px;margin-bottom:8px}
 .section>.container>[style*="margin-bottom"]{margin-bottom:22px!important}
 .section>.container>[style*="margin-top"]{margin-top:22px!important}
 .hero{min-height:490px}.hero__content{padding:108px 20px 38px}
 .hero__title{font-size:32px;margin:16px 0}.hero__badge{font-size:10px;max-width:100%;white-space:normal}
 .hero__code-line{font-size:12px;line-height:1.7;margin-bottom:20px}.hero__actions{gap:10px}
 .hero__actions .btn{padding:11px 13px;font-size:12px}.hero__actions .btn--ghost{padding-left:0}
 .hero-pagination{margin-top:24px}
 .list-grid{grid-template-columns:minmax(0,1fr);gap:12px}
 .list-grid>.card:has(>.card__image){display:grid;grid-template-columns:100px minmax(0,1fr);align-items:stretch}
 .list-grid>.card>.card__image{aspect-ratio:auto;height:100%;min-height:145px;border-bottom:0;border-right:1px solid var(--border-subtle)}
 .list-grid>.card>.card__image img{width:100%;height:100%;object-fit:cover}
 .card__body{padding:12px}.card__title{font-size:14px;line-height:1.5;-webkit-line-clamp:2}.card__desc{font-size:12px;line-height:1.6}
 .card__tag{font-size:10px;margin-bottom:6px}.card__meta{font-size:10px;margin-top:10px;gap:8px;flex-wrap:wrap;overflow-wrap:anywhere}
 .stats{gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.stat-item{padding:15px 8px}.stat-item__number{font-size:28px}.stat-item__label{font-size:12px}
 .blog-item{padding:16px 0;gap:6px}.blog-item__title{font-size:15px}.blog-item__desc{font-size:13px}
 .community-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.community-card{padding:18px 10px;gap:7px}
 .community-card__icon{font-size:24px}.community-card__title{font-size:14px}.community-card__desc{font-size:11px;overflow-wrap:anywhere}
 .cta-section{padding:32px 0 40px}.cta-section__inner{padding:24px 16px}.cta-section__title{font-size:23px}
 .list-header{margin-bottom:22px}.list-header h1{font-size:25px}.filter-bar{margin-bottom:24px}
 .detail__title{font-size:24px;line-height:1.4;overflow-wrap:anywhere}.detail__header{margin-bottom:22px}.detail__meta-row{flex-wrap:wrap;gap:8px}
 .detail__param{padding:14px 10px}.detail__param-value{font-size:14px}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 .related-grid .card__image{aspect-ratio:4/3}.contact-form-card{padding:20px 16px}
 .search-form-row{gap:8px}.search-form-row .btn{padding:10px 14px;white-space:nowrap}
 .search-result-item{flex-direction:row;gap:12px}.search-result-item__thumb{width:80px;min-width:80px;height:84px}.search-result-item__info{min-width:0}
 .footer__grid>div:nth-child(3){grid-column:1/-1;grid-row:3}.footer__grid>div:nth-child(4){grid-column:2;grid-row:2}
 .back-top{width:36px;height:36px;right:10px;bottom:70px}.kefu-btn{width:42px;height:42px;right:10px;bottom:18px}
}