* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
}
html {
  background: var(--bg);
}
:root {
  font-size: clamp(14px, 1.1vw + 0.4vh, 18px);
  /* 字体族定义 */
  --font-sans:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, 'PingFang SC',
    'Microsoft YaHei', sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
  /* 字重定义 */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  /* 更柔和 / 极简配色 */
  --bg: #f9f9f9;
  --bg-alt: #ffffff;
  --fg: #1f1f23;
  --fg-soft: #5a5d62;
  --fg-mute: #8d9095;
  --accent: hsl(350 82% 54%);
  --accent-hover: hsl(350 82% 47%);
  --border: rgba(0 0 0 / 0.08);
  --radius: 10px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: none;
  --focus: 0 0 0 3px hsl(350 90% 60% / 0.35);
  /* 背景光晕颜色 */
  --bg-glow: rgba(255, 107, 129, 0.08);
  --bg-glow-secondary: rgba(255, 107, 129, 0.06);
  --bg-glow-tertiary: rgba(255, 107, 129, 0.04);
  /* Footer光泽颜色 */
  --footer-glow: rgba(255, 107, 129, 0.03);
  /* 发光效果颜色 */
  --glow-color: rgba(255, 107, 129, 0.3);
  --glow-color-bright: rgba(255, 107, 129, 0.6);
}
[data-theme='dark'] {
  /* 深色对比降低眩光 */
  --bg: #0e1013;
  --bg-alt: #16191d;
  --fg: #e5e7eb;
  --fg-soft: #b8bcc2;
  --fg-mute: #7b818a;
  --accent: hsl(350 85% 62%);
  --accent-hover: hsl(350 85% 55%);
  --border: rgba(255, 255, 255 / 0.09);
  --shadow: none;
  --focus: 0 0 0 3px hsl(350 85% 55% / 0.4);
  /* 深色主题背景光晕颜色 */
  --bg-glow: rgba(255, 107, 129, 0.15);
  --bg-glow-secondary: rgba(255, 107, 129, 0.12);
  --bg-glow-tertiary: rgba(255, 107, 129, 0.08);
  /* 深色主题Footer光泽颜色 */
  --footer-glow: rgba(255, 107, 129, 0.08);
  /* 深色主题发光效果颜色 */
  --glow-color: rgba(255, 107, 129, 0.5);
  --glow-color-bright: rgba(255, 107, 129, 0.8);
}

[data-theme='dark'] .footer::before {
  background: linear-gradient(90deg, transparent, var(--footer-glow), transparent);
}

[data-theme='dark'] .footer:hover {
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.25);
}
body {
  font: 15px/1.55 var(--font-sans);
  font-weight: var(--font-weight-normal);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 80%, var(--bg-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--bg-glow-secondary) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, var(--bg-glow-tertiary) 0%, transparent 50%);
  pointer-events: none;
  z-index: -2;
  animation: backgroundFloat 20s ease-in-out infinite;
}
/* 公告卡片 */
.announcement[hidden] {
  display: none !important;
}
.announcement {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(640px, 94%);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem 0.9rem;
  background: linear-gradient(145deg, var(--bg-alt), var(--bg));
  border: 1px solid var(--border);
  border-radius: 18px;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.22);
  font-size: 0.72rem;
  line-height: 1.45;
  letter-spacing: 0.04em;
  color: var(--fg-soft);
  z-index: 500;
  animation: ann-pop 0.5s cubic-bezier(0.16, 0.8, 0.3, 1);
}

.announcement .ann-icon {
  font-size: 0.9rem;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.15));
  opacity: 0.9;
}

.announcement .ann-text,
.announcement .ann-stack {
  flex: 1;
  text-align: center;
  overflow: hidden;
  max-height: 6.2em;
}

.announcement .ann-stack {
  position: relative;
  min-height: 1.2em;
  transition: height 0.45s ease;
}

.announcement .ann-pane {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--ann-trans, 520ms) ease,
    transform var(--ann-trans, 520ms) cubic-bezier(0.16, 0.8, 0.3, 1);
}

.announcement .ann-pane.active {
  opacity: 1;
  transform: translateY(0);
}

.announcement .ann-close {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(0, 0, 0, 0.8);
  font-weight: var(--font-weight-medium);
  font-size: 0.9rem;
  line-height: 1.2;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 0.8, 0.3, 1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  min-height: 28px;
  position: relative;
  overflow: hidden;
}

[data-theme='dark'] .announcement .ann-close {
  background: rgba(255 255 255 / 0.05);
  border: 1px solid rgba(255 255 255 / 0.08);
  color: rgba(255 255 255 / 0.7);
}

.announcement .ann-close:hover {
  background: rgba(0 0 0 / 0.15);
  color: rgba(0 0 0 / 0.95);
  border-color: rgba(0 0 0 / 0.25);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme='dark'] .announcement .ann-close:hover {
  background: rgba(255 255 255 / 0.1);
  border-color: rgba(255 255 255 / 0.15);
  color: rgba(255 255 255 / 0.9);
}

.announcement .ann-close:active {
  transform: translateY(0) scale(0.95);
  background: rgba(0 0 0 / 0.2);
  transition-duration: 0.1s;
}

[data-theme='dark'] .announcement .ann-close:active {
  background: rgba(255 255 255 / 0.12);
}

.announcement .ann-close:focus-visible {
  outline: 2px solid rgba(0 0 0 / 0.4);
  outline-offset: 2px;
}

[data-theme='dark'] .announcement .ann-close:focus-visible {
  outline-color: rgba(255 255 255 / 0.3);
}

.announcement .ann-close .close-icon {
  font-size: 0.85rem;
  font-weight: var(--font-weight-normal);
  transition: transform 0.15s ease;
  display: block;
}

.announcement .ann-close:hover .close-icon {
  transform: rotate(90deg);
}

.announcement.ann-hide {
  animation: ann-hide 0.4s ease forwards;
  pointer-events: none;
}

@keyframes ann-pop {
  from {
    opacity: 0;
    transform: translate(-50%, -6px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0) scale(1);
  }
}

@keyframes ann-hide {
  to {
    opacity: 0;
    transform: translate(-50%, -20px) scale(0.95);
    visibility: hidden;
  }
}
.main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}
.hero {
  text-align: center;
  max-width: 780px;
  width: 100%;
  padding: 0 1rem;
  animation: fadeIn 0.7s ease both;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.title {
  font-size: clamp(3rem, 11.5vw, 5.2rem);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  color: var(--fg);
  position: relative;
}
.title::after {
  content: '';
  display: block;
  width: 64px;
  height: 2px;
  margin: 0.9rem auto 0;
  background: var(--accent);
  border-radius: 2px;
}
.subtitle {
  margin-top: 0.2rem;
  font-size: clamp(1.05rem, 2.4vw, 1.55rem);
  font-weight: var(--font-weight-normal);
  color: var(--fg-soft);
}
.runtime {
  margin-top: 0.9rem;
  font-size: 0.78rem;
  color: var(--fg-mute);
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  font-weight: var(--font-weight-normal);
}
.actions {
  margin-top: 1.2rem;
  display: flex;
  gap: 0.65rem;
  justify-content: center;
}
.btn {
  appearance: none;
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold);
  font-size: 0.75rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition:
    background var(--transition),
    transform 0.25s;
  letter-spacing: 0.08em;
  min-width: 3.2rem;
  justify-content: center;
}
.btn:hover {
  background: var(--accent-hover);
}
.btn:active {
  transform: scale(0.95);
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

/* 主题 & 语言联动卡片 */
.theme-lang-panel {
  position: fixed;
  z-index: 1000;
  min-width: 236px;
  max-width: 280px;
  padding: 1.05rem 1.05rem 1rem;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--bg-alt) 75%, transparent) 0%,
    color-mix(in srgb, var(--bg) 85%, transparent) 100%
  );
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 20px 48px -18px rgba(15, 19, 28, 0.45);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 14px) scale(0.95);
  transition:
    opacity 0.2s ease,
    transform 0.24s cubic-bezier(0.16, 0.8, 0.3, 1);
  isolation: isolate;
}

.theme-lang-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 40%, transparent) 0%,
    transparent 70%
  );
  pointer-events: none;
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.theme-lang-panel.open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
}

.theme-lang-panel.theme-lang-panel--above {
  transform: translate(-50%, -14px) scale(0.95);
}

.theme-lang-panel.theme-lang-panel--above.open {
  transform: translate(-50%, 0) scale(1);
}

[data-theme='dark'] .theme-lang-panel {
  background: linear-gradient(155deg, rgba(23, 27, 35, 0.92), rgba(17, 20, 26, 0.94));
  border-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 26px 58px -22px rgba(5, 6, 9, 0.85);
}

.theme-lang-header {
  font-size: 0.8rem;
  font-weight: var(--font-weight-semibold);
  text-align: center;
  color: var(--fg);
  letter-spacing: 0.06em;
}

.theme-lang-hint {
  margin-top: 0.25rem;
  margin-bottom: 0.85rem;
  font-size: 0.63rem;
  text-align: center;
  color: var(--fg-mute);
  letter-spacing: 0.05em;
}

.theme-lang-theme {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: 0.9rem;
}

.theme-lang-theme-title {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  text-align: center;
  color: color-mix(in srgb, var(--fg-mute) 85%, var(--accent) 15%);
}

.theme-lang-theme-actions {
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.theme-lang-theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--bg-alt) 80%, transparent);
  color: var(--fg-soft);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-lang-theme-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
}

.theme-lang-theme-btn.active {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.18);
}

.theme-lang-theme-icon {
  font-size: 0.85rem;
  line-height: 1;
}

.theme-lang-theme-text {
  font-size: 0.64rem;
}

.theme-lang-accent {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.95rem;
}

.theme-lang-accent-title {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  text-align: center;
  color: color-mix(in srgb, var(--fg-mute) 78%, var(--accent) 22%);
}

.theme-lang-accent-list {
  display: flex;
  justify-content: center;
  gap: 0.52rem;
  flex-wrap: wrap;
}

.theme-lang-accent-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: var(--swatch-color, var(--accent));
  position: relative;
  cursor: pointer;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-lang-accent-dot::after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: inherit;
  background: color-mix(in srgb, #fff 20%, transparent);
  opacity: 0;
  transform: scale(0.7);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease;
}

.theme-lang-accent-dot:hover {
  transform: translateY(-1px) scale(1.03);
  border-color: color-mix(in srgb, var(--swatch-color, var(--accent)) 50%, transparent);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
}

.theme-lang-accent-dot:focus-visible {
  outline: none;
  transform: scale(1.05);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--swatch-color, var(--accent)) 45%, transparent),
    0 10px 24px rgba(0, 0, 0, 0.22);
}

.theme-lang-accent-dot.active {
  transform: scale(1.08);
  border-color: var(--swatch-color, var(--accent));
  box-shadow:
    0 12px 26px rgba(0, 0, 0, 0.24),
    0 0 0 3px color-mix(in srgb, var(--swatch-color, var(--accent)) 50%, transparent);
}

.theme-lang-accent-dot.active::after {
  opacity: 0.36;
  transform: scale(0.9);
}

.theme-lang-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.theme-lang-option {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.45rem;
  width: 100%;
  padding: 0.52rem 0.65rem;
  border-radius: 12px;
  border: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  color: var(--fg);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.22s ease;
}

.theme-lang-option:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--bg) 88%);
  color: var(--accent);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.theme-lang-option.active {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
}

.theme-lang-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.28;
  transform: translateY(1px);
}

.theme-lang-option.active .theme-lang-dot {
  opacity: 0.9;
}

.theme-lang-name {
  text-align: left;
}

.theme-lang-code {
  font-size: 0.62rem;
  opacity: 0.55;
}

.theme-lang-option.active .theme-lang-code {
  opacity: 0.88;
}

.theme-lang-current {
  margin-left: 0.2rem;
  padding: 0.16rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
}

[data-theme='dark'] .theme-lang-option {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.04);
}

[data-theme='dark'] .theme-lang-option:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent);
}

.theme-lang-empty {
  text-align: center;
  font-size: 0.64rem;
  color: var(--fg-mute);
  letter-spacing: 0.04em;
}

/* 导航卡片 */
.nav-cards {
  margin: 2rem auto 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: 600px;
  width: 100%;
}

.nav-filter-bar {
  margin: 1.5rem auto 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  max-width: 520px;
}

.nav-filter-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--fg-soft);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform 0.25s ease;
}

.nav-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.nav-filter-btn.active {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

[data-theme='dark'] .nav-filter-btn {
  background: var(--bg-alt);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--fg-mute);
}

[data-theme='dark'] .nav-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

[data-theme='dark'] .nav-filter-btn.active {
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.nav-card {
  display: flex;
  align-items: center;
  padding: 0.8rem 1rem;
  min-width: 280px;
  max-width: 320px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

.nav-card:hover {
  background: var(--bg);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow);
}

.nav-card-icon {
  font-size: 1.2rem;
  margin-right: 0.8rem;
  flex-shrink: 0;
}

.nav-card-content {
  flex: 1;
}

.nav-card-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg);
  margin: 0 0 0.1rem 0;
  line-height: 1.3;
}

.nav-card-desc {
  font-size: 0.7rem;
  color: var(--fg-soft);
  margin: 0;
  line-height: 1.2;
  opacity: 0.8;
}

.nav-card-arrow {
  font-size: 0.9rem;
  color: var(--fg-mute);
  opacity: 0.5;
  transition: all 0.2s ease;
}

.nav-card:hover .nav-card-arrow {
  color: var(--accent);
  opacity: 1;
  transform: translateX(2px);
}

/* 深色主题 */
[data-theme='dark'] .nav-card {
  background: var(--bg-alt);
  border-color: var(--border);
}

[data-theme='dark'] .nav-card:hover {
  background: var(--bg);
  border-color: var(--accent);
}

/* 查看更多按钮 */
.nav-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 1.5rem auto 0;
  padding: 0.75rem 1.5rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg-soft);
  font-size: 0.85rem;
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-more-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(255, 107, 129, 0.02));
  opacity: 0;
  transition: opacity var(--transition);
}

.nav-more-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

.nav-more-btn:hover::before {
  opacity: 1;
}

.nav-more-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-more-icon {
  font-size: 1.1rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.nav-more-btn:hover .nav-more-icon {
  opacity: 1;
}

.nav-more-text {
  font-size: 0.8rem;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.nav-more-btn:hover .nav-more-text {
  opacity: 1;
}

[data-theme='dark'] .nav-more-btn {
  background: var(--bg-alt);
  border-color: var(--border);
  color: var(--fg-soft);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme='dark'] .nav-more-btn:hover {
  background: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* 导航模态框 */
.nav-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.nav-modal-overlay.open {
  opacity: 1;
}

.nav-modal-overlay.closing {
  opacity: 0;
}

.nav-modal-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
  max-width: 95vw;
  max-height: 85vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s ease;
  overflow: hidden;
}

.nav-modal-overlay.open .nav-modal-content {
  transform: scale(1) translateY(0);
}

.nav-modal-overlay.closing .nav-modal-content {
  transform: scale(0.95) translateY(10px);
}

.nav-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.nav-modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--fg);
  flex: 1;
}

.nav-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--fg-mute);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
}

.nav-modal-close:hover {
  background: var(--border);
  color: var(--fg);
}

.nav-modal-toggle {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg-soft);
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: var(--font-weight-medium);
  margin-right: 0.5rem;
  white-space: nowrap;
  min-width: 80px;
}

.nav-modal-toggle:hover {
  background: var(--bg-alt);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-modal-toggle.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.nav-modal-toggle.active:hover {
  background: var(--accent);
  opacity: 0.9;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-modal-toggle-content {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

[data-theme='dark'] .nav-modal-toggle {
  background: var(--bg-alt);
  border-color: var(--border);
  color: var(--fg-soft);
}

[data-theme='dark'] .nav-modal-toggle:hover {
  background: var(--bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme='dark'] .nav-modal-toggle.active {
  background: var(--accent);
  color: white;
}

[data-theme='dark'] .nav-modal-toggle.active:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.nav-modal-body {
  padding: 2rem;
  overflow-y: auto;
  flex: 1;
}

.nav-modal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 0 auto;
  max-width: 100%;
  justify-items: center;
}

/* 模态框内的导航卡片样式优化 */
.nav-modal-content .nav-card {
  transition: all 0.3s ease;
  border-radius: calc(var(--radius) * 1.2);
}

.nav-modal-content .nav-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

[data-theme='dark'] .nav-modal-content .nav-card:hover {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

/* 模态框动画优化 */
.nav-modal-overlay {
  animation: modalFadeIn 0.3s ease-out;
}

.nav-modal-overlay.closing {
  animation: modalFadeOut 0.25s ease-in forwards;
}

.nav-modal-content {
  animation: modalSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-modal-overlay.closing .nav-modal-content {
  animation: modalSlideOut 0.25s ease-in forwards;
}

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

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

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.85) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes modalSlideOut {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
}

[data-theme='dark'] .nav-modal-content {
  background: var(--bg);
  border-color: var(--border);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

[data-theme='dark'] .nav-modal-header {
  background: var(--bg-alt);
  border-color: var(--border);
}

[data-theme='dark'] .nav-modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 响应式 */
@media (max-width: 768px) {
  .nav-modal-overlay {
    padding: 1rem;
  }

  .nav-modal-content {
    max-height: 90vh;
    max-width: calc(100vw - 2rem);
    border-radius: calc(var(--radius) * 1.2);
  }

  .nav-modal-header {
    padding: 1rem 1.5rem;
  }

  .nav-modal-body {
    padding: 1.5rem 1rem;
  }

  .nav-modal-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.875rem;
  }

  .nav-modal-toggle {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    min-width: 100px;
  }
}

@media (max-width: 480px) {
  .nav-modal-overlay {
    padding: 0.5rem;
  }

  .nav-modal-content {
    max-height: 95vh;
    max-width: calc(100vw - 1rem);
    border-radius: var(--radius);
  }

  .nav-modal-header {
    padding: 0.875rem 1rem;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .nav-modal-title {
    font-size: 1rem;
    margin: 0;
  }

  .nav-modal-body {
    padding: 1rem 0.75rem;
  }

  .nav-modal-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .nav-modal-toggle {
    align-self: flex-end;
    padding: 0.5rem 0.875rem;
    font-size: 0.75rem;
    min-width: 90px;
  }

  .nav-modal-content .nav-card:hover {
    transform: translateY(-2px) scale(1.01);
  }
}
#maomao {
  cursor: pointer;
  transition: transform 0.6s ease;
}
#maomao:hover {
  transform: translateY(-4px) scale(1.03);
}
.footer {
  background: var(--bg-alt);
  color: var(--fg-mute);
  text-align: center;
  padding: 1.15rem 0.9rem 0.95rem;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: var(--font-weight-normal);
  line-height: 1.4;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(20px);
  opacity: 0;
  animation: footerSlideIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s forwards;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--footer-glow), transparent);
  animation: footerShimmer 3s ease-in-out 2; /* 只运行2次后停止 */
  pointer-events: none;
}

.footer:hover {
  transform: translateY(-2px);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
  border-color: color-mix(in srgb, var(--border) 60%, var(--accent) 20%);
}

.footer a {
  color: var(--fg-soft);
  text-decoration: none;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
}

.footer a:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

.footer a:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--accent),
    color-mix(in srgb, var(--accent) 70%, transparent)
  );
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 1px;
}

.footer a:hover:after {
  transform: scaleX(1);
}

.footer p {
  margin: 0 0 0.5rem 0;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
}

.footer:hover p {
  color: var(--fg-soft);
}

#hitokoto {
  max-width: 620px;
  margin: 0.3rem auto 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 0.7rem;
  color: var(--fg-soft);
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
  transform: translateY(10px);
  opacity: 0;
  animation: footerTextSlideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}

.footer:hover #hitokoto {
  color: var(--fg);
  transform: translateY(-1px);
}

@keyframes footerSlideIn {
  0% {
    transform: translateY(20px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes footerTextSlideIn {
  0% {
    transform: translateY(10px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes footerShimmer {
  0%,
  100% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
}

/* 响应式设计 */
@media (max-width: 600px) {
  .title {
    letter-spacing: 0.02em;
  }
  .main {
    padding: 1.6rem 1.1rem;
  }
  .actions {
    margin-top: 0.9rem;
  }
  .btn {
    padding: 0.55rem 0.9rem;
    font-size: 0.7rem;
  }
  .announcement {
    top: 0.65rem;
    padding: 0.7rem 0.75rem 0.75rem;
    font-size: 0.66rem;
    border-radius: 16px;
  }
  .accent-panel {
    bottom: 0.75rem;
    right: 0.75rem;
  }
  .toast-container {
    top: 10%;
    gap: 0.45rem;
  }

  /* 导航过滤器 */
  .nav-filter-bar {
    margin: 1.2rem auto 0;
    gap: 0.45rem;
    max-width: 320px;
  }
  .nav-filter-btn {
    font-size: 0.65rem;
    padding: 0.35rem 0.75rem;
  }

  /* 导航卡片 */
  .nav-cards {
    margin: 1.5rem auto 0;
    gap: 0.8rem;
    flex-direction: column;
    align-items: center;
    max-width: 340px;
  }
  .nav-card {
    width: 100%;
    max-width: 320px;
    min-width: 280px;
  }

  /* 查看更多按钮 */
  .nav-more-btn {
    margin: 1rem auto 0;
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
    min-width: 120px;
  }
}

@media (max-width: 360px) {
  .title {
    font-size: clamp(2.3rem, 10.5vw, 3.4rem);
  }
  .subtitle {
    font-size: clamp(0.95rem, 4vw, 1.15rem);
  }
  .main {
    padding: 1.1rem 0.85rem;
  }
  .actions {
    gap: 0.5rem;
  }

  /* 移动端触摸优化 */
  .nav-card:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  .nav-more-btn:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  /* 模态框触摸优化 */
  .nav-modal-content .nav-card:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }
}

/* 移动端背景优化 */
@media (max-width: 768px) {
  body::before {
    background: radial-gradient(circle at 50% 50%, var(--bg-glow-secondary) 0%, transparent 40%);
    animation: none; /* 移动端禁用动画以节省性能 */
  }

  [data-theme='dark'] body::before {
    background: radial-gradient(circle at 50% 50%, var(--bg-glow) 0%, transparent 40%);
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .main {
    align-items: flex-start;
    padding: 1rem 2rem;
  }
  .hero {
    padding-top: 1rem;
  }
  .title {
    font-size: clamp(2.2rem, 10vh, 4rem);
  }
  #maomao {
    display: none;
  } /* 避免极矮视口遮挡 */
}

@media (min-width: 1400px) {
  .hero {
    max-width: 900px;
  }
  .title {
    letter-spacing: 0.05em;
  }
  .main {
    padding: 3rem;
  }
  .nav-cards {
    max-width: 800px;
  }
}

/* 平板端优化 */
@media (min-width: 601px) and (max-width: 1024px) {
  .nav-cards {
    max-width: 720px;
    gap: 0.875rem;
  }

  .nav-modal-content {
    max-width: 800px;
  }

  .nav-modal-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
  }
}

/* 大屏优化 */
@media (min-width: 1025px) {
  .nav-cards {
    max-width: 800px;
    gap: 1.125rem;
  }

  .nav-modal-content {
    max-width: 1000px;
  }

  .nav-modal-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
  }
}
/* 通用动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes contentFade {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0);
  }
}
/* 滚动淡入 */
.reveal {
  --stagger: 90ms;
}
.reveal-item {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.7s var(--transition),
    transform 0.7s var(--transition);
}
.reveal-in .reveal-item {
  opacity: 1;
  transform: none;
}
.reveal-in .reveal-item:nth-child(2) {
  transition-delay: var(--stagger);
}
.reveal-in .reveal-item:nth-child(3) {
  transition-delay: calc(var(--stagger) * 2);
}

/* 骨架屏 */
.skeleton {
  position: relative;
  color: transparent !important;
}
.skeleton > * {
  visibility: hidden;
}
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(0 0 0 / 0.04), rgba(0 0 0 / 0.07), rgba(0 0 0 / 0.04));
  animation: skeleton 1.05s infinite;
}
[data-theme='dark'] .skeleton::after {
  background: linear-gradient(
    90deg,
    rgba(255 255 255 / 0.08),
    rgba(255 255 255 / 0.14),
    rgba(255 255 255 / 0.08)
  );
}
@keyframes skeleton {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 200% 0;
  }
}
.fade-in {
  animation: contentFade 0.5s ease forwards;
}

/* 开屏动画 */
.splash {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(
      circle at center,
      color-mix(in srgb, var(--accent) 6%, transparent) 0%,
      transparent 50%
    ),
    var(--bg);
  z-index: 999;
  transition:
    opacity 0.5s ease 0.05s,
    visibility 0s linear 0.55s;
  padding: 1.5rem;
}

.splash.fade-out {
  opacity: 0;
  visibility: hidden;
}

.splash-matrix {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 3rem;
  width: min(800px, 100%);
  border-radius: 32px;
  border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--bg-alt) 88%, transparent) 0%,
    color-mix(in srgb, var(--bg) 78%, transparent) 100%
  );
  backdrop-filter: blur(18px) saturate(1.35);
  -webkit-backdrop-filter: blur(18px) saturate(1.35);
  box-shadow: 0 32px 80px -42px rgba(17, 24, 39, 0.65);
  isolation: isolate;
  position: relative;
  overflow: hidden;
}

.splash-matrix::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.02) 50%,
    transparent 70%
  );
  animation: matrixScan 3s ease-in-out infinite;
}

.splash-matrix-header {
  text-align: center;
  z-index: 2;
  position: relative;
}

.splash-matrix-title {
  font-size: clamp(2.2rem, 2rem + 1.2vw, 3.2rem);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  background: linear-gradient(
    135deg,
    var(--accent),
    color-mix(in srgb, var(--accent) 70%, var(--fg))
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  animation: matrixGlow 2s ease-in-out infinite alternate;
}

.splash-matrix-subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-soft);
  opacity: 0.8;
}

.splash-matrix-rain {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  z-index: 1;
}

.splash-matrix-column {
  position: absolute;
  top: -20px;
  width: 2px;
  height: 100%;
  animation: matrixRain 2s linear infinite;
  opacity: 0.7;
}

.splash-matrix-char {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
  animation: matrixChar 0.5s ease-in-out infinite alternate;
  opacity: 0.6;
  line-height: 1.2;
}

.splash-matrix-progress {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  z-index: 2;
  position: relative;
  width: 100%;
}

.splash-matrix-progress-text {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  font-weight: var(--font-weight-medium);
  color: var(--fg-mute);
  text-transform: uppercase;
  opacity: 0.9;
}

.splash-matrix-progress-bar {
  position: relative;
  width: 100%;
  max-width: 300px;
  height: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--border) 70%, transparent);
  overflow: hidden;
}

.splash-matrix-progress-fill {
  position: absolute;
  inset: 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    var(--accent),
    color-mix(in srgb, var(--accent) 70%, #fff 30%)
  );
  transition: width var(--transition);
  box-shadow: 0 0 12px var(--accent);
}

@keyframes matrixScan {
  0%,
  100% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}

@keyframes matrixGlow {
  0% {
    filter: brightness(1) drop-shadow(0 0 8px var(--glow-color));
  }
  100% {
    filter: brightness(1.1) drop-shadow(0 0 16px var(--glow-color-bright));
  }
}

@keyframes matrixRain {
  0% {
    transform: translateY(-100%);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(100%);
    opacity: 0;
  }
}

@keyframes matrixChar {
  0% {
    opacity: 0.3;
    transform: scale(0.95);
  }
  100% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

@media (max-width: 720px) {
  .splash-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 1.8rem;
    padding: 2.2rem 1.8rem;
  }

  .splash-copy {
    align-items: center;
  }

  .splash-scene {
    width: 200px;
    height: 200px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .splash-cat,
  .splash-cat::after,
  .splash-petals span {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}
/* 滚动进度条 */
.scroll-progress {
  position: fixed;
  left: 0;
  top: 0;
  height: 3px;
  background: var(--accent);
  width: 0;
  z-index: 1000;
  transition: width 0.15s linear;
}
/* Accent 选择面板 */
.accent-panel {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 0.6rem 0.7rem 0.55rem;
  border-radius: var(--radius);
  display: flex;
  gap: 0.5rem;
  box-shadow: 0 4px 14px -4px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.25s ease;
}
.accent-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  outline: none;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.accent-dot:after {
  content: '';
  position: absolute;
  inset: 3px;
  border: 2px solid #fff;
  border-radius: inherit;
  opacity: 0;
  transform: scale(0.6);
  transition: 0.25s;
  mix-blend-mode: overlay;
}
.accent-dot.active:after {
  opacity: 1;
  transform: scale(1);
}
.accent-panel button {
  background: none;
  border: none;
  padding: 0;
}

/* 用户选择控制 */
body,
body * {
  -webkit-user-select: none;
  user-select: none;
}
input,
textarea,
[contenteditable='true'],
[contenteditable=''] {
  -webkit-user-select: text;
  user-select: text;
}

/* Toast 样式 */
.toast-container {
  position: fixed;
  left: 50%;
  top: 12%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  z-index: 99998;
  pointer-events: none;
  padding: 0 0.6rem;
  max-width: 100%;
}

.toast {
  position: relative;
  pointer-events: auto;
  background: var(--accent);
  color: #fff;
  padding: 0.7rem 1.1rem;
  font-family: var(--font-sans);
  font-weight: var(--font-weight-medium);
  font-size: 0.8rem;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
  box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(8px) saturate(1.2);
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  border: 1px solid rgba(255 255 255 / 0.15);
  opacity: 0;
  transform: translateY(-8px) scale(0.96);
  transition:
    opacity 0.4s var(--transition),
    transform 0.5s cubic-bezier(0.16, 0.8, 0.3, 1);
  will-change: transform, opacity;
  user-select: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.toast-neutral {
  background: var(--bg-alt);
  color: var(--fg);
  border: 1px solid var(--border);
  box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.15);
}

[data-theme='dark'] .toast-neutral {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.35);
}

.toast-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.toast-success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.toast-accent {
  background: var(--accent);
}

.toast-close {
  position: absolute;
  top: 4px;
  right: 8px;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0.7;
  transition: var(--transition);
}

.toast-close:hover {
  opacity: 1;
  background: rgba(255 255 255 / 0.15);
}

.toast-close:active {
  transform: scale(0.9);
}

.toast-leave {
  animation: toast-leave 0.42s var(--transition) forwards;
}

@keyframes toast-leave {
  to {
    opacity: 0;
    transform: translateY(-12px) scale(0.92);
  }
}

/* 主题切换遮罩 */
.theme-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.theme-mask.show {
  opacity: 1;
}

@keyframes backgroundFloat {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(5px, -5px) scale(1.01);
  }
  50% {
    transform: translate(-3px, 3px) scale(0.99);
  }
  75% {
    transform: translate(-5px, -3px) scale(1.005);
  }
}