/* ============================
   PUN Game Studio — Style
   ============================ */

/* ----- 自定义属性 ----- */
:root {
  --bg-primary: #07080c;
  --bg-elevated: #0d0f17;
  --bg-card: #11131f;
  --bg-card-hover: #161929;
  --text-primary: #e8eaf0;
  --text-secondary: #8a8fa8;
  --text-muted: #555a75;
  --accent: #00e5bf;
  --accent-dim: rgba(0, 229, 191, 0.15);
  --accent-glow: rgba(0, 229, 191, 0.25);
  --pink: #ff2975;
  --pink-dim: rgba(255, 41, 117, 0.12);
  --amber: #ffb347;
  --green: #34d399;
  --border: #1a1d2e;
  --border-hover: #2a2e4a;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-sm: 8px;
  --font-display: 'Chakra Petch', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-height: 60px;
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

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

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* ----- CRT 覆盖层 ----- */
.crt-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.025) 2px,
    rgba(0, 0, 0, 0.025) 4px
  );
}

/* ----- 粒子画布 ----- */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ----- 导航栏 ----- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(7, 8, 12, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.3s;
}

.navbar:hover {
  border-color: rgba(0, 229, 191, 0.15);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0;
  letter-spacing: -0.5px;
  transition: opacity 0.2s;
}

.nav-logo:hover {
  opacity: 0.8;
}

.logo-bracket {
  color: var(--accent);
  opacity: 0.6;
}

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

.logo-dash {
  color: var(--accent);
  margin: 0 2px;
  animation: blink 1s step-end infinite;
}

.logo-suffix {
  color: var(--text-muted);
  font-size: 0.85rem;
}

@keyframes blink {
  50% { opacity: 0; }
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  position: relative;
}

.nav-link:hover {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* ----- Hero ----- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 28px 80px;
}

/* 启动行 */
.hero-boot {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  height: 24px;
  display: flex;
  align-items: center;
  gap: 0;
}

.boot-prompt {
  color: var(--accent);
  margin-right: 10px;
}

.boot-text {
  color: var(--text-secondary);
}

.boot-cursor {
  color: var(--accent);
  animation: blink 0.8s step-end infinite;
  margin-left: 4px;
}

/* 标题 */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.title-line {
  display: block;
  position: relative;
  color: var(--text-primary);
}

.title-line.accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 副标题 */
.hero-sub {
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 2vw, 1rem);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 48px;
  height: 24px;
}

.sub-cursor {
  color: var(--accent);
  animation: blink 0.8s step-end infinite;
}

/* 统计 */
.hero-stats {
  display: flex;
  gap: 48px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 滚动提示 */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.4;
  animation: scrollHintFloat 2.5s ease-in-out infinite;
}

.hero-scroll-hint span {
  position: relative;
  animation: scrollTextPulse 2.5s ease-in-out infinite;
}

.scroll-arrow {
  width: 1px;
  height: 28px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollArrowGrow 2.5s ease-in-out infinite;
  border-radius: 1px;
}

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

@keyframes scrollTextPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

@keyframes scrollArrowGrow {
  0%, 100% { height: 20px; opacity: 0.3; }
  50% { height: 32px; opacity: 0.8; }
}

/* ----- 通用区域 ----- */
.section {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 28px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--accent);
  opacity: 0.5;
}

.section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ----- 游戏网格 ----- */
.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* ===== 游戏卡片 ===== */
.game-card {
  display: block;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
}

/* 左侧彩色装饰条 */
.game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--pink));
  z-index: 2;
  transition: width 0.3s ease;
}

.game-card:hover::before {
  width: 6px;
  box-shadow: 2px 0 20px rgba(0, 229, 191, 0.2);
}

/* 底部光晕渐变 */
.game-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    160deg,
    rgba(0, 229, 191, 0.03) 0%,
    transparent 40%
  );
  pointer-events: none;
}

/* 装饰性像素网格背景 */
.game-card .card-bg-pattern {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background-image:
    radial-gradient(circle at 20px 20px, rgba(255,255,255,0.02) 1px, transparent 0);
  background-size: 24px 24px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.game-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: rgba(0, 229, 191, 0.25);
  background: var(--bg-card-hover);
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(0, 229, 191, 0.06);
}

.game-card > *:not(.card-bg-pattern) {
  position: relative;
  z-index: 1;
}

/* 卡片内容区域 */
.game-card-body {
  padding: 28px 28px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* 图标与标题同行 */
.game-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.game-card-icon {
  font-size: 2.4rem;
  line-height: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(0, 229, 191, 0.15));
  transition: transform 0.3s ease;
}

.game-card:hover .game-card-icon {
  transform: scale(1.1) rotate(-4deg);
}

.game-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.game-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  padding-left: 0;
}

/* 卡片底部操作栏 */
.game-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.game-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.68rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: all 0.3s;
}

.badge-active {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
  border: 1px solid rgba(52, 211, 153, 0.15);
}

.badge-soon {
  background: rgba(255, 179, 71, 0.1);
  color: var(--amber);
  border: 1px solid rgba(255, 179, 71, 0.12);
}

.badge-locked {
  background: rgba(85, 90, 117, 0.1);
  color: var(--text-muted);
  border: 1px solid rgba(85, 90, 117, 0.12);
}

/* 右侧玩法指示器 */
.game-card-action {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.game-card:hover .game-card-action {
  opacity: 1;
  transform: translateX(0);
}

.game-card-action .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.game-card:hover .game-card-action .arrow {
  transform: translateX(4px);
}

/* 空状态 */
.game-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 24px;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.game-empty-icon {
  font-size: 2.8rem;
  display: block;
  margin-bottom: 20px;
  line-height: 1;
}

.game-empty-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.game-empty-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ----- 关于 ----- */
.about-card {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.about-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.term-dot.red { background: #ff5f56; }
.term-dot.yellow { background: #ffbd2e; }
.term-dot.green { background: #27c93f; }

.term-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 20px 24px;
  font-size: 0.85rem;
  line-height: 1.8;
}

.terminal-body .prompt {
  color: var(--accent);
  margin-right: 8px;
}

.terminal-body .cmd {
  color: var(--text-secondary);
}

.terminal-body .output {
  color: var(--text-muted);
  padding-left: 20px;
  margin-bottom: 4px;
}

.cursor-block {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--accent);
  animation: blink 0.8s step-end infinite;
  vertical-align: text-bottom;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 16px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 191, 0.1);
  border-radius: 20px;
  color: var(--accent);
  transition: all 0.2s;
}

.tech-tag:hover {
  background: rgba(0, 229, 191, 0.2);
  border-color: rgba(0, 229, 191, 0.25);
}

/* ----- 页脚 ----- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 28px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-divider {
  color: var(--border);
}

.footer-tagline {
  font-style: italic;
}

/* ===== 小程序介绍（柿事谐音梗） ===== */
.miniapp-card {
  display: flex;
  align-items: center;
  gap: 48px;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, #0f1422 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s, box-shadow 0.4s;
}

.miniapp-card:hover {
  border-color: rgba(0, 229, 191, 0.2);
  box-shadow: 0 0 60px rgba(0, 229, 191, 0.04);
}

/* Top accent line */
.miniapp-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--pink), transparent);
  opacity: 0.6;
}

/* Subtle grid pattern overlay */
.miniapp-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 24px 24px, rgba(255,255,255,0.015) 1px, transparent 0);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.miniapp-card > * {
  position: relative;
  z-index: 1;
}

/* ---- Visual / Image Side ---- */
.miniapp-visual {
  flex-shrink: 0;
  width: 260px;
}

.miniapp-frame {
  position: relative;
  border-radius: 48px;
  overflow: hidden;
  background: var(--bg-primary);
  box-shadow:
    0 0 0 1px rgba(0, 229, 191, 0.1),
    0 8px 32px rgba(0, 0, 0, 0.4);
  transition: box-shadow 0.4s;
}

.miniapp-card:hover .miniapp-frame {
  box-shadow:
    0 0 0 1px rgba(0, 229, 191, 0.25),
    0 8px 40px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(0, 229, 191, 0.06);
}

.miniapp-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.miniapp-card:hover .miniapp-img {
  transform: scale(1.03);
}

/* Scanline overlay on image */
.miniapp-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  pointer-events: none;
}

/* Image bottom caption */
.miniapp-caption {
  text-align: center;
  margin-top: 12px;
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
}

/* ---- Content Side ---- */
.miniapp-content {
  flex: 1;
  min-width: 0;
}

.miniapp-badge-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.miniapp-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding: 5px 14px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 191, 0.1);
  border-radius: 20px;
  text-transform: uppercase;
}

.miniapp-badge-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: badgePulse 1.6s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--accent); }
  50% { opacity: 0.25; box-shadow: none; }
}

.miniapp-badge-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 229, 191, 0.15), transparent);
}

.miniapp-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.miniapp-title-pun {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.miniapp-title-pun::after {
  content: 'homophone';
  position: absolute;
  bottom: -6px;
  right: 0;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.5;
}

.miniapp-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.miniapp-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 28px;
  max-width: 520px;
}

/* Tags & Meta */
.miniapp-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.miniapp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.miniapp-tag {
  font-size: 0.72rem;
  padding: 4px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text-muted);
  transition: all 0.25s;
  cursor: default;
}

.miniapp-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.miniapp-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.miniapp-meta-dot {
  color: var(--border);
  font-size: 0.6rem;
}

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .miniapp-card {
    flex-direction: column;
    padding: 32px 28px;
    gap: 28px;
    text-align: center;
  }

  .miniapp-visual {
    width: 200px;
  }

  .miniapp-badge-row {
    justify-content: center;
  }

  .miniapp-badge-line {
    display: none;
  }

  .miniapp-desc {
    max-width: 100%;
  }

  .miniapp-footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .miniapp-title-pun::after {
    right: auto;
    left: 0;
  }
}

@media (max-width: 480px) {
  .miniapp-visual {
    width: 160px;
  }

  .miniapp-card {
    padding: 24px 20px;
  }
}

/* ----- 响应式 ----- */
@media (max-width: 768px) {
  .nav-inner {
    padding: 0 20px;
  }

  .logo-suffix {
    display: none;
  }

  .section {
    padding: 72px 20px;
  }

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

  .hero-stats {
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .nav-link {
    padding: 8px 12px;
    font-size: 0.75rem;
  }

  .hero-title {
    font-size: clamp(2.2rem, 14vw, 3.5rem);
  }

  .hero-boot {
    font-size: 0.7rem;
  }

  .section-title {
    font-size: 1.5rem;
  }
}

/* ----- 入场动画 ----- */
.hero-title,
.hero-sub,
.hero-stats,
.hero-scroll-hint {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s ease forwards;
}

.hero-title { animation-delay: 1.8s; }
.hero-sub { animation-delay: 2.0s; }
.hero-stats { animation-delay: 2.2s; }
.hero-scroll-hint { animation-delay: 2.6s; }

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

/* 卡片入场 */
.game-card {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease,
    background 0.35s,
    border-color 0.35s,
    box-shadow 0.35s;
}

.game-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 骨架屏 ===== */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.skeleton-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px 32px;
  position: relative;
  overflow: hidden;
}

.skeleton-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--accent), var(--pink));
  opacity: 0.3;
}

.skeleton-pulse {
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.02) 0%,
    rgba(255,255,255,0.06) 50%,
    rgba(255,255,255,0.02) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: 6px;
}

.skeleton-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.skeleton-title {
  width: 65%; height: 22px;
  margin-bottom: 12px;
}

.skeleton-desc {
  width: 90%; height: 14px;
  margin-bottom: 8px;
}

.skeleton-desc.short {
  width: 55%;
}

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

/* ===== 页面过渡 ===== */
body {
  opacity: 0;
  animation: pageFadeIn 0.4s ease forwards;
}

@keyframes pageFadeIn {
  to { opacity: 1; }
}

/* ===== 留言板悬浮组件 ===== */
.msg-board-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.msg-board-toggle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.msg-board-toggle:hover {
  background: var(--bg-card-hover);
  box-shadow: 0 4px 24px rgba(0, 229, 191, 0.2), 0 0 0 1px rgba(0, 229, 191, 0.2);
  transform: scale(1.05);
}

.msg-board-panel {
  width: 320px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  animation: msgSlideUp 0.25s ease;
}

@keyframes msgSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.msg-board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.msg-board-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 4px;
  line-height: 1;
  transition: color 0.2s;
}

.msg-board-close:hover {
  color: var(--text-primary);
}

.msg-board-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg-board-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  outline: none;
  transition: border-color 0.2s;
}

.msg-board-input:focus {
  border-color: var(--accent);
}

.msg-board-textarea {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  resize: vertical;
  min-height: 72px;
  outline: none;
  transition: border-color 0.2s;
}

.msg-board-textarea:focus {
  border-color: var(--accent);
}

.msg-board-submit {
  width: 100%;
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

.msg-board-submit:hover {
  opacity: 0.85;
}

.msg-board-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.msg-board-tip {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-align: center;
  min-height: 1.2em;
  transition: opacity 0.3s;
}

.msg-board-tip.success {
  color: var(--green);
}

.msg-board-tip.error {
  color: var(--pink);
}

/* mobile */
@media (max-width: 480px) {
  .msg-board-panel {
    width: calc(100vw - 32px);
  }

  .msg-board-widget {
    bottom: 16px;
    right: 16px;
  }
}