/* ============================================================
 * BioQuest — 全局样式变量与基础样式
 * 设计主题: Fresh Natural + Japanese Wabi-Sabi Literary
 * 配色系统对齐 trae design (bioquest-redesign/colors_and_type.css)
 * 旧变量保留为别名，确保向后兼容
 * ============================================================ */

/* ----- CSS 自定义属性: 亮色主题 ----- */
:root {
  /* ── Primary Palette（主色：柔和鼠尾草绿） ── */
  --color-primary: #4a7c59;
  --color-primary-light: #5d9a72;
  --color-primary-dark: #3a6347;
  --color-primary-50: #edf5f0;
  --color-primary-100: #d4e8db;
  --color-primary-200: #a8d1b7;
  --color-primary-700: #2d4a36;
  --color-primary-900: #1a2f1d;

  /* ── Warm Tint（暖色：陶土橘） ── */
  --color-warm: #c4956a;
  --color-warm-light: #d4a87e;
  --color-warm-50: #fdf5ee;
  --color-warm-100: #f5e6d4;
  --color-warm-200: #e8ceb0;

  /* ── Neutral / Cream（中性色：奶油白） ── */
  --color-bg: #faf8f5;
  --color-bg-warm: #f5f0e8;
  --color-bg-cool: #f2f5f3;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-sunken: #f7f4f0;

  /* ── Text ── */
  --color-text: #2c3e30;
  --color-text-secondary: #5a6b5e;
  --color-text-muted: #8a9a8e;
  --color-text-inverse: #ffffff;
  --color-text-accent: #4a7c59;
  --color-text-warm: #c4956a;

  /* ── Borders ── */
  --color-border: #e2ddd6;
  --color-border-light: #ede9e3;
  --color-border-focus: #4a7c59;

  /* ── State Colors ── */
  --state-success: #3a8c5c;
  --state-success-bg: #edf7f0;
  --state-warning: #d4a030;
  --state-warning-bg: #fdf8ec;
  --state-error: #c0553a;
  --state-error-bg: #fdf0ec;
  --state-info: #5a8cb8;
  --state-info-bg: #edf3f9;

  /* ── Typography ── */
  --font-sans: 'LXGW WenKai', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Segoe UI', sans-serif;
  --font-serif: 'LXGW WenKai', 'Noto Serif SC', 'Songti SC', 'SimSun', 'STSong', 'Noto Serif CJK SC', Georgia, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', 'Liberation Mono', 'Menlo', monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  /* ── Spacing ── */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* ── Radius ── */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* ── Shadows（低饱和度，和风质感） ── */
  --shadow-xs: 0 1px 2px rgba(44, 62, 48, 0.03);
  --shadow-sm: 0 1px 3px rgba(44, 62, 48, 0.04);
  --shadow-md: 0 4px 12px rgba(44, 62, 48, 0.05);
  --shadow-lg: 0 8px 24px rgba(44, 62, 48, 0.05);
  --shadow-floating: 0 12px 40px rgba(44, 62, 48, 0.12);
  --shadow-button: 0 6px 20px rgba(196, 149, 106, 0.25);

  /* ── Transitions ── */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.22, 1, 0.36, 1);

  /* ── Z-index ── */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  --header-height: 64px;
  --content-max-width: 1200px;
  --content-padding: 24px;

  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1200px;

  /* ═══ 旧变量别名（向后兼容，勿在新代码中使用） ═══ */
  --color-deep: var(--color-primary-900);
  --color-mid: var(--color-primary-700);
  --color-sage: var(--color-primary);
  --color-olive: #8ba888;
  --color-amber: var(--color-warm);
  --color-amber-light: var(--color-warm-light);
  --color-cream: var(--color-bg);
  --color-cream-dark: var(--color-bg-warm);
  --color-white: #ffffff;

  --marigold: var(--color-warm);
  --forest-deep: var(--color-primary-900);
  --forest-mid: var(--color-primary-700);
  --surface: var(--color-surface);
  --sage: var(--color-primary);
  --border: var(--color-border);
  --success-green: var(--state-success);
  --terracotta: var(--state-error);

  --color-success: var(--state-success);
  --color-error: var(--state-error);
  --color-warning: var(--state-warning);

  --text-primary: var(--color-text);
  --text-secondary: var(--color-text-secondary);
  --text-muted: var(--color-text-muted);
  --text-inverse: var(--color-text-inverse);

  --surface-primary: var(--color-surface);
  --surface-secondary: var(--color-bg-warm);
  --surface-tertiary: var(--color-surface-sunken);

  --border-default: var(--color-border);
  --border-light: var(--color-border-light);
  --border-focus: var(--color-border-focus);
}

/* ----- 深色主题（对齐 trae design Dark Mode） ----- */
[data-theme="dark"] {
  --color-primary: #6bc48e;
  --color-primary-light: #7dd4a0;
  --color-primary-dark: #5ab87c;
  --color-primary-50: #1a2f1d;
  --color-primary-100: #243d28;
  --color-primary-200: #2d5a36;
  --color-primary-700: #3a7a4c;
  --color-primary-900: #4a9c6a;

  --color-warm: #d4a87e;
  --color-warm-light: #e0b98e;
  --color-warm-50: #2a2420;
  --color-warm-100: #3a3430;
  --color-warm-200: #4a403a;

  --color-bg: #141a16;
  --color-bg-warm: #1a1f1c;
  --color-bg-cool: #161b19;
  --color-surface: #1e2521;
  --color-surface-elevated: #242b27;
  --color-surface-sunken: #1a201d;

  --color-text: #e0e8e2;
  --color-text-secondary: #a8b8ac;
  --color-text-muted: #6a7a6e;
  --color-text-inverse: #141a16;
  --color-text-accent: #6bc48e;
  --color-text-warm: #d4a87e;

  --color-border: #2e3833;
  --color-border-light: #242d28;
  --color-border-focus: #6bc48e;

  --state-success-bg: #1a2f1d;
  --state-warning-bg: #2a2420;
  --state-error-bg: #2a1a1a;
  --state-info-bg: #1a2028;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-floating: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-button: 0 6px 20px rgba(212, 168, 126, 0.15);

  /* 旧变量别名同步 */
  --color-deep: var(--color-primary-900);
  --color-mid: var(--color-primary-700);
  --color-sage: var(--color-primary);
  --color-amber: var(--color-warm);
  --color-cream: var(--color-bg);
  --surface: var(--color-surface);
  --text-primary: var(--color-text);
  --text-secondary: var(--color-text-secondary);
  --text-muted: var(--color-text-muted);
  --border-default: var(--color-border);
  --border-light: var(--color-border-light);
}

/* 自动深色（系统偏好，未手动指定时生效） */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --color-primary: #6bc48e;
    --color-primary-light: #7dd4a0;
    --color-primary-dark: #5ab87c;
    --color-primary-50: #1a2f1d;
    --color-primary-100: #243d28;
    --color-primary-200: #2d5a36;
    --color-primary-700: #3a7a4c;
    --color-primary-900: #4a9c6a;

    --color-warm: #d4a87e;
    --color-bg: #141a16;
    --color-bg-warm: #1a1f1c;
    --color-surface: #1e2521;
    --color-surface-sunken: #1a201d;

    --color-text: #e0e8e2;
    --color-text-secondary: #a8b8ac;
    --color-text-muted: #6a7a6e;
    --color-text-inverse: #141a16;

    --color-border: #2e3833;
    --color-border-light: #242d28;
    --color-border-focus: #6bc48e;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.35);

    /* 旧变量别名 */
    --color-deep: var(--color-primary-900);
    --color-sage: var(--color-primary);
    --color-amber: var(--color-warm);
    --color-cream: var(--color-bg);
    --surface: var(--color-surface);
    --text-primary: var(--color-text);
    --text-secondary: var(--color-text-secondary);
    --text-muted: var(--color-text-muted);
    --border-default: var(--color-border);
    --border-light: var(--color-border-light);
  }
}

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

/* 全局文字防溢出 */
h1, h2, h3, h4, h5, h6,
p, li, td, th, span, a {
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-deep);
}

h1, h2 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

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

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

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

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

::selection {
  background-color: var(--color-amber);
  color: var(--color-white);
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* ============================================================
 * 全局页面质感提升
 * ============================================================ */
body {
  background-image:
    radial-gradient(ellipse at 20% 30%, rgba(196, 149, 106, 0.025) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(90, 125, 92, 0.02) 0%, transparent 50%);
}

.container {
  transition: max-width var(--transition-slow);
}

/* 防止任何子元素水平溢出 */
.page-content {
  overflow-x: hidden;
}

/* ============================================================
 * 辅助类
 * ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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

.section {
  padding: 88px 0;
}

.section-alt {
  background-color: var(--surface-secondary);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-sage);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.2rem;
  color: var(--color-deep);
  margin-bottom: 10px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 48px;
}

/* ============================================================
 * .btn 按钮组件
 * ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.938rem;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base),
              transform var(--transition-base),
              box-shadow var(--transition-base),
              opacity var(--transition-base);
  outline: none;
  user-select: none;
  white-space: nowrap;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(196, 149, 106, 0.6);
}

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

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

.btn-primary {
  background-color: var(--color-amber);
  color: var(--color-deep);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-button);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-secondary {
  background-color: rgba(26, 58, 42, 0.07);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: rgba(26, 58, 42, 0.13);
}

.btn-success {
  background-color: var(--color-sage);
  color: var(--color-white);
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-mid);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-white);
}

.btn-danger:hover:not(:disabled) {
  background-color: #a84830;
}

.btn-sm {
  font-size: 0.875rem;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  font-size: 1.1rem;
  padding: 16px 32px;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 10px;
  border-radius: var(--radius-full);
}

/* ============================================================
 * .card 卡片组件
 * ============================================================ */
.card {
  background-color: var(--surface-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--border-default);
}

.card:active {
  transform: scale(0.99);
}

.card-header {
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-deep);
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card-body {
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card--flat {
  box-shadow: none;
  border: 1px solid var(--border-light);
}

.card--flat:hover {
  box-shadow: var(--shadow-sm);
}

.card--accent {
  border-left: 4px solid var(--color-amber);
}

.card--danger {
  border-left: 4px solid var(--color-error);
}

.card--success {
  border-left: 4px solid var(--color-success);
}

/* ============================================================
 * .tag 标签组件
 * ============================================================ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

.tag--default {
  background-color: var(--surface-tertiary);
  color: var(--text-secondary);
}

.tag--primary {
  background-color: rgba(196, 149, 106, 0.15);
  color: var(--color-amber);
}

.tag--success {
  background-color: rgba(58, 140, 92, 0.12);
  color: var(--color-success);
}

.tag--danger {
  background-color: rgba(192, 85, 58, 0.12);
  color: var(--color-error);
}

.tag--warning {
  background-color: rgba(232, 168, 48, 0.12);
  color: var(--color-warning);
}

.tag--info {
  background-color: rgba(90, 125, 92, 0.12);
  color: var(--color-sage);
}

.tag--outline {
  background-color: transparent;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
}

/* ============================================================
 * 工具提示
 * ============================================================ */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-deep);
  color: var(--text-inverse);
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tooltip:hover::after,
.tooltip:focus-visible::after {
  opacity: 1;
}

/* ============================================================
 * 加载动画
 * ============================================================ */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  display: none;
}

.btn:disabled .spinner,
.loading .spinner {
  display: inline-block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) ease forwards;
}

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

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

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(90, 125, 92, 0.4);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(90, 125, 92, 0);
    transform: scale(1.02);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

@keyframes skeletonPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-slow) ease forwards;
}

.animate-fade-out {
  animation: fadeOut 0.2s ease;
}

.animate-pulse-glow {
  animation: pulseGlow 0.6s ease;
}

.animate-shake {
  animation: shake 0.4s ease;
}

.skeleton {
  background: var(--surface-tertiary);
  border-radius: var(--radius-sm);
  animation: skeletonPulse 1.5s ease-in-out infinite;
  min-height: 1em;
}

/* ============================================================
 * 页面过渡动画
 * ============================================================ */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cardReveal {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes staggerFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-enter {
  animation: pageEnter 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.card-reveal {
  animation: cardReveal 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.stagger-item {
  opacity: 0;
  animation: staggerFadeIn 0.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }

/* ============================================================
 * 滚动条
 * ============================================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--surface-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ============================================================
 * 无障碍跳过链接
 * ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-amber);
  color: var(--color-deep);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 200;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: calc(var(--header-height) + 8px);
}

/* ============================================================
 * 响应式
 * ============================================================ */
@media (max-width: 1024px) {
  .container {
    padding: 0 32px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .section-desc {
    font-size: 1rem;
    margin-bottom: 32px;
  }
}

/* ============================================================
 * Header 登录按钮
 * ============================================================ */
.auth-btn {
  background: linear-gradient(135deg, #3a8c5c, #2d6a47);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}
.auth-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(45, 106, 71, 0.3);
}

/* ============================================================
 * Auth Modal — 简洁现代风格登录/注册弹窗
 * ============================================================ */

/* --- Overlay backdrop --- */
.auth-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 12, 0.75);
  z-index: 10000;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.auth-modal-overlay.visible {
  display: flex;
}

/* --- Main Card --- */
.auth-container {
  position: relative;
  width: 400px;
  max-width: 94vw;
  background: #1a1f1c;
  border-radius: 18px;
  border: 1px solid rgba(58, 140, 92, 0.15);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  padding: 32px 28px 28px;
  animation: authBoxIn 0.35s cubic-bezier(0.2, 0.9, 0.3, 1);
  box-sizing: border-box;
}
@keyframes authBoxIn {
  from { opacity: 0; transform: scale(0.93) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* --- Close button --- */
.auth-close-btn {
  position: absolute;
  top: 10px; right: 10px;
  z-index: 10;
  width: 32px; height: 32px;
  border: none;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.45);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.auth-close-btn:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
  transform: rotate(90deg);
}

/* --- Tab bar --- */
.auth-tabs {
  position: relative;
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: 10px;
  padding: 3px;
  margin-bottom: 22px;
}

/* Sliding pill indicator */
.auth-tab-indicator {
  position: absolute;
  top: 3px;
  height: calc(100% - 6px);
  background: #3a8c5c;
  border-radius: 8px;
  z-index: 0;
  transition: left 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 4px rgba(45, 106, 71, 0.3);
}

.auth-tab {
  position: relative;
  z-index: 1;
  flex: 1;
  padding: 9px 8px;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.5);
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: color 0.35s ease;
  font-family: inherit;
}
.auth-tab.active {
  color: #fff;
  font-weight: 700;
  background: transparent;
}
.auth-tab:hover:not(.active) {
  color: rgba(255,255,255,0.75);
}

/* --- Form panels --- */
.auth-form-panel {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.auth-form-panel.active {
  display: flex;
  animation: authFormSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authFormSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-form-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #f0f4f0;
  margin: 0 0 4px;
  letter-spacing: 0.02em;
}
.auth-form-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  margin: 0 0 18px;
  line-height: 1.5;
}

/* --- Input fields with icons --- */
.auth-field {
  position: relative;
  width: 100%;
  margin-bottom: 10px;
}
.auth-field-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  color: rgba(255,255,255,0.35);
  pointer-events: none;
  transition: color 0.2s ease;
  z-index: 1;
}
.auth-input {
  width: 100%;
  padding: 11px 14px 11px 40px;
  border: 1.5px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  outline: none;
  background: rgba(255,255,255,0.06);
  color: #e4ece6;
  font-size: 0.88rem;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.auth-input::placeholder {
  color: rgba(255,255,255,0.3);
  font-size: 0.83rem;
}
.auth-input:focus {
  border-color: #3a8c5c;
  background: rgba(58, 140, 92, 0.08);
  box-shadow: 0 0 0 3.5px rgba(58, 140, 92, 0.12);
}
.auth-field:focus-within .auth-field-icon {
  color: #3a8c5c;
}

/* --- Extra links --- */
.auth-form-extra {
  width: 100%;
  text-align: right;
  margin-bottom: 12px;
}
.auth-form-extra a {
  font-size: 0.76rem;
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color 0.2s;
}
.auth-form-extra a:hover { color: #3a8c5c; }

/* --- Math CAPTCHA box (国内友好，无第三方依赖) --- */
.captcha-box {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-bottom: 12px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  transition: border-color 0.2s;
}
.captcha-box:focus-within {
  border-color: #3a8c5c;
}
.captcha-question {
  flex: 0 0 auto;
  font-size: 0.95rem;
  font-weight: 600;
  color: #3a8c5c;
  font-family: 'Courier New', monospace;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.captcha-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 0.95rem;
  font-family: inherit;
  padding: 4px 0;
}
.captcha-input::placeholder { color: rgba(255,255,255,0.3); }
.captcha-refresh {
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.5);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.captcha-refresh:hover {
  border-color: #3a8c5c;
  color: #3a8c5c;
  transform: rotate(180deg);
}

/* 滑动验证码触发按钮状态 */
.captcha-box[data-state="passed"] {
  border-color: #3a8c5c;
  background: rgba(58, 140, 92, 0.08);
}
.captcha-box[data-state="passed"] .captcha-question {
  color: #3a8c5c;
  font-weight: 600;
}
.captcha-box[data-state="passed"] .captcha-refresh {
  border-color: #3a8c5c;
  color: #3a8c5c;
  transform: none;
}

/* ===== 滑块触发器（明显的大按钮风格） ===== */
.slide-cap-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 18px;
  margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(58, 140, 92, 0.12), rgba(90, 125, 92, 0.18));
  border: 2px dashed rgba(58, 140, 92, 0.45);
  border-radius: 12px;
  color: #5a7d5c;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  user-select: none;
  -webkit-user-select: none;
}
.slide-cap-trigger:hover {
  background: linear-gradient(135deg, rgba(58, 140, 92, 0.18), rgba(90, 125, 92, 0.28));
  border-color: #3a8c5c;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(58, 140, 92, 0.2);
}
.slide-cap-trigger:active {
  transform: translateY(0);
}
.slide-cap-trigger-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: #3a8c5c;
}
.slide-cap-trigger-text {
  flex: 1;
  text-align: left;
}
.slide-cap-trigger-arrow {
  font-size: 1.1rem;
  font-weight: 700;
  color: #3a8c5c;
  transition: transform 0.2s;
}
.slide-cap-trigger[data-state="passed"] {
  background: linear-gradient(135deg, rgba(58, 140, 92, 0.92), rgba(90, 173, 124, 0.95));
  border-color: #3a8c5c;
  border-style: solid;
  color: #fff;
  box-shadow: 0 2px 8px rgba(58, 140, 92, 0.4);
}
.slide-cap-trigger[data-state="passed"] .slide-cap-trigger-icon,
.slide-cap-trigger[data-state="passed"] .slide-cap-trigger-arrow {
  color: #fff;
}
.slide-cap-trigger[data-state="passed"] .slide-cap-trigger-arrow {
  transform: scale(1.3);
}

/* ===== 滑动拼图验证码弹窗 ===== */
.slide-cap-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  animation: slideCapFadeIn 0.2s ease;
}
@keyframes slideCapFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.slide-cap-panel {
  background: #1a2f1d;
  border-radius: 14px;
  padding: 22px 24px 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  width: 320px;
  max-width: 92vw;
  color: #f1f1f1;
  animation: slideCapSlideIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes slideCapSlideIn {
  from { opacity: 0; transform: translateY(-20px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.slide-cap-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: #f1f1f1;
}
.slide-cap-sub {
  font-size: 0.78rem;
  color: #8a9a8a;
  font-weight: 400;
}
.slide-cap-stage {
  position: relative;
  height: 130px;
  background: #0f1f12;
  border-radius: 8px;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  margin: 0 auto;
}
.slide-cap-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.slide-cap-piece {
  position: absolute;
  z-index: 2;
  pointer-events: auto;
  cursor: grab;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.4));
  transition: filter 0.15s, transform 0.1s;
  user-select: none;
  -webkit-user-select: none;
}
.slide-cap-piece:hover {
  transform: scale(1.04);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.55));
}
.slide-cap-piece.dragging {
  cursor: grabbing;
  transform: scale(1.06);
  filter: drop-shadow(0 6px 12px rgba(58, 140, 92, 0.6));
}
.slide-cap-piece.passed {
  filter: drop-shadow(0 0 12px rgba(90, 173, 124, 0.9));
  animation: slideCapPiecePass 0.4s ease;
}
@keyframes slideCapPiecePass {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}
.slide-cap-track-bottom {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  overflow: hidden;
  z-index: 1;
}
.slide-cap-track {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 4px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  overflow: hidden;
  z-index: 1;
}
.slide-cap-progress {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #3a8c5c, #5aad7c);
  border-radius: 2px;
  transition: width 0.15s;
}
.slide-cap-status {
  position: absolute;
  bottom: 14px;
  left: 0;
  right: 0;
  font-size: 0.78rem;
  color: #cfd8d0;
  text-align: center;
  min-height: 1.2em;
  z-index: 1;
  pointer-events: none;
}
.slide-cap-status.err {
  color: #d4824a;
}
.slide-cap-status.ok {
  color: #5aad7c;
  font-weight: 600;
}
.slide-cap-actions {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 14px;
}
.slide-cap-retry,
.slide-cap-cancel {
  flex: 1;
  padding: 8px 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: transparent;
  color: #cfd8d0;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}
.slide-cap-retry:hover {
  border-color: #3a8c5c;
  color: #5aad7c;
}
.slide-cap-cancel {
  background: rgba(58, 140, 92, 0.12);
  border-color: rgba(58, 140, 92, 0.3);
}
.slide-cap-cancel:hover {
  background: rgba(58, 140, 92, 0.2);
  color: #fff;
}

/* ===== 逃跑按钮反向验证码 ===== */
.escape-cap-overlay {
  position: fixed;
  inset: 0;
  background: #111;
  z-index: 99998;
  overflow: hidden;
}
.escape-cap-panel {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
  z-index: 1;
}
.escape-cap-stage {
  position: relative;
  width: 100%;
  height: calc(100% - 80px);
  max-width: 600px;
  max-height: 380px;
}
.escape-cap-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ccc;
  background: #1e1e1e;
  border: 1px solid #444;
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition: background 0.12s;
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  z-index: 2;
  white-space: nowrap;
}
.escape-cap-btn:hover {
  background: #2a2a2a;
  border-color: #666;
}
.escape-cap-btn.surrendered {
  background: #2d4a2d;
  border-color: #4a7c59;
  color: #5aad7c;
  cursor: default;
}
.escape-cap-btn.passed {
  background: #2d4a2d;
  border-color: #4a7c59;
  color: #5aad7c;
}
.escape-cap-bottom {
  position: absolute;
  bottom: 18px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 16px;
}
.escape-cap-fail {
  background: none;
  color: #555;
  border: 0;
  padding: 6px 10px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: color 0.15s;
  font-family: inherit;
}
.escape-cap-fail:hover {
  color: #999;
}
@media (max-width: 600px) {
  .escape-cap-btn {
    padding: 12px 28px;
    font-size: 0.88rem;
  }
}

/* ===== 密码设置器 ===== */
.pwd-setup-overlay {
  position: fixed;
  inset: 0;
  background: #111;
  z-index: 99998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.pwd-setup-panel {
  background: rgba(20, 28, 40, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 26px 28px 20px;
  width: 100%;
  max-width: 440px;
  color: #fff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  animation: escapeCapSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.pwd-setup-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: #fff;
  letter-spacing: 0.3px;
}
.pwd-setup-sub {
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}
.pwd-setup-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.pwd-setup-input-wrap {
  position: relative;
  flex: 1;
}
.pwd-setup-input {
  width: 100%;
  padding: 12px 44px 12px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #fff;
  font-size: 0.95rem;
  font-family: 'SF Mono', Monaco, monospace;
  letter-spacing: 0.5px;
  outline: none;
  transition: all 0.2s;
  box-sizing: border-box;
}
.pwd-setup-input:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: #5aad7c;
}
.pwd-setup-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}
.pwd-setup-toggle:hover { color: #fff; }
.pwd-setup-gen {
  padding: 0 14px;
  background: linear-gradient(135deg, #3a8c5c, #5aad7c);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.pwd-setup-gen:hover {
  background: linear-gradient(135deg, #4a9c6c, #6abd8c);
  transform: translateY(-1px);
}
.pwd-strength-wrap { margin-bottom: 12px; }
.pwd-strength-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}
.pwd-strength-fill {
  height: 100%;
  width: 0;
  background: #d63a2a;
  border-radius: 3px;
  transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s;
}
.pwd-strength-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.7);
}
.pwd-strength-label {
  font-weight: 700;
  font-size: 0.85rem;
}
.pwd-strength-info {
  color: rgba(255, 255, 255, 0.5);
  font-family: monospace;
}
.pwd-sarcastic {
  text-align: center;
  font-size: 0.95rem;
  color: #5aad7c;
  font-style: italic;
  margin: 12px 0 18px;
  min-height: 1.4em;
  font-weight: 500;
}
.pwd-attack-section {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 16px;
}
.pwd-attack-title {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.pwd-attack-hint {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  font-weight: 400;
}
.pwd-attack-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.pwd-attack-start {
  background: rgba(220, 90, 70, 0.2);
  color: #e87a3a;
  border: 1px solid rgba(220, 90, 70, 0.4);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.78rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.pwd-attack-start:hover {
  background: rgba(220, 90, 70, 0.35);
  color: #fff;
}
.pwd-attack-progress {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}
.pwd-attack-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #d63a2a, #e87a3a, #e8c43a, #a8d63a, #3a8c5c);
  border-radius: 3px;
  transition: width 0.15s linear, background 0.3s;
}
.pwd-attack-stat {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.6);
  font-family: monospace;
  min-width: 100px;
  text-align: right;
}
.pwd-attack-log {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 6px;
  padding: 6px 10px;
  height: 80px;
  overflow-y: auto;
  font-family: 'SF Mono', monospace;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}
.pwd-attack-log::-webkit-scrollbar { width: 4px; }
.pwd-attack-log::-webkit-scrollbar-track { background: transparent; }
.pwd-attack-log::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 2px; }
.pwd-setup-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}
.pwd-setup-cancel,
.pwd-setup-confirm {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.pwd-setup-cancel {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
}
.pwd-setup-cancel:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}
.pwd-setup-confirm {
  background: linear-gradient(135deg, #3a8c5c, #5aad7c);
  color: #fff;
  box-shadow: 0 2px 8px rgba(58, 140, 92, 0.3);
}
.pwd-setup-confirm:hover {
  background: linear-gradient(135deg, #4a9c6c, #6abd8c);
  transform: translateY(-1px);
}

/* ===== 扫雷验证码 ===== */
.mine-cap-overlay {
  position: fixed;
  inset: 0;
  background: #111;
  z-index: 99998;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mine-cap-panel {
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 24px 28px 20px;
  width: 320px;
  max-width: 92vw;
  text-align: center;
}
.mine-cap-title {
  font-size: 1rem;
  font-weight: 600;
  color: #ccc;
  margin-bottom: 6px;
}
.mine-cap-sub {
  font-size: 0.76rem;
  color: #666;
  margin-bottom: 18px;
}
.mine-cap-sub strong {
  color: #aaa;
  font-weight: 600;
}
.mine-cap-stage {
  display: flex;
  justify-content: center;
  margin-bottom: 14px;
}
.mine-cap-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
  width: 250px;
  height: 250px;
}
.mine-cell {
  background: #2a2a2a;
  border: 2px solid #3a3a3a;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: #ccc;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
.mine-cell:hover {
  background: #333;
  border-color: #555;
}
.mine-cell.open {
  background: #1a1a1a;
  border-color: #2a2a2a;
  cursor: default;
  color: #888;
}
.mine-cell.open.zero {
  color: #555;
}
.mine-cell.flag {
  background: #2a3a2a;
  border-color: #3a5a3a;
  color: #5aad7c;
}
.mine-cell.mine {
  background: #4a2020;
  border-color: #8a3030;
  color: #f66;
}
.mine-cell.mine-show {
  background: #3a2020;
  color: #d63a2a;
}
.mine-cap-status {
  font-size: 0.8rem;
  color: #777;
  margin-bottom: 12px;
  min-height: 1.4em;
  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
.mine-cap-status.err { color: #d63a2a; font-weight: 600; }
.mine-cap-status.ok { color: #5aad7c; font-weight: 600; }
.mine-cap-bottom {
  display: flex;
  justify-content: center;
}
.mine-cap-back {
  background: none;
  color: #555;
  border: 0;
  padding: 5px 10px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: color 0.15s;
  font-family: inherit;
}
.mine-cap-back:hover {
  color: #999;
}

/* ===== 8 字符密钥提示卡（注册后展示） ===== */
.userkey-card-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  animation: slideCapFadeIn 0.25s ease;
}
.userkey-card-panel {
  background: linear-gradient(160deg, #1a3a2a 0%, #0f2a1a 100%);
  border: 1px solid rgba(58, 140, 92, 0.4);
  border-radius: 18px;
  padding: 32px 28px 26px;
  max-width: 380px;
  width: 90vw;
  color: #f1f1f1;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  animation: slideCapSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.userkey-card-icon {
  font-size: 2.4rem;
  margin-bottom: 8px;
}
.userkey-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: #fff;
}
.userkey-card-sub {
  font-size: 0.85rem;
  color: #a8b8a8;
  margin: 0 0 18px;
  line-height: 1.6;
}
.userkey-card-key {
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 6px;
  color: #5aad7c;
  background: rgba(0, 0, 0, 0.45);
  padding: 18px 12px;
  border-radius: 10px;
  margin-bottom: 18px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px dashed rgba(90, 173, 124, 0.4);
  user-select: all;
}
.userkey-card-key:hover {
  background: rgba(0, 0, 0, 0.6);
  border-color: #5aad7c;
  transform: scale(1.02);
}
.userkey-card-key.copied {
  background: rgba(58, 140, 92, 0.3);
  color: #fff;
  border-color: #3a8c5c;
}
.userkey-card-tips {
  text-align: left;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 18px;
}
.userkey-card-tip {
  font-size: 0.78rem;
  color: #cfd8d0;
  line-height: 1.8;
}
.userkey-card-btn {
  background: linear-gradient(135deg, #3a8c5c, #5aad7c);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(58, 140, 92, 0.4);
}
.userkey-card-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(58, 140, 92, 0.55);
}

/* ===== 找回密码成功提示 ===== */
.auth-success {
  color: #5aad7c;
  font-size: 0.85rem;
  margin: 8px 0;
  min-height: 1em;
  line-height: 1.5;
  word-break: break-all;
}

/* --- Submit button --- */
.auth-form-panel .auth-btn {
  width: 100%;
  padding: 12px 0;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #3a8c5c 0%, #2d6a47 100%);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(45, 106, 71, 0.25);
  font-family: inherit;
}
.auth-form-panel .auth-btn:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 8px 24px rgba(45, 106, 71, 0.4);
  background: linear-gradient(135deg, #45a06a 0%, #357d55 100%);
}
.auth-form-panel .auth-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(45, 106, 71, 0.3);
}

/* --- Error text --- */
.auth-error {
  font-size: 0.78rem;
  color: #ff6b6b;
  min-height: 1.3em;
  margin: 8px 0 0;
  text-align: center;
  line-height: 1.5;
  word-break: break-word;
}

/* --- Inline links --- */
.auth-link {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color 0.2s;
}
.auth-link:hover { color: #3a8c5c; }

/* ============================================================
 *  Light Theme
 * ============================================================ */
[data-theme="light"] .auth-modal-overlay {
  background: rgba(26, 42, 24, 0.45);
}
[data-theme="light"] .auth-container {
  background: #ffffff;
  border-color: rgba(45, 106, 71, 0.15);
  box-shadow: 0 24px 80px rgba(0,0,0,0.12);
}
[data-theme="light"] .auth-close-btn {
  background: rgba(0,0,0,0.04);
  color: rgba(0,0,0,0.35);
}
[data-theme="light"] .auth-close-btn:hover {
  background: rgba(0,0,0,0.08);
  color: #1a1f1c;
}
[data-theme="light"] .auth-tabs {
  background: rgba(45,106,71,0.06);
}
[data-theme="light"] .auth-tab {
  color: rgba(26,42,28,0.45);
}
[data-theme="light"] .auth-tab.active {
  color: #fff;
}
[data-theme="light"] .auth-tab:hover:not(.active) {
  color: rgba(26,42,28,0.7);
}
[data-theme="light"] .auth-form-title { color: #1a2a1c; }
[data-theme="light"] .auth-form-sub   { color: rgba(26,42,28,0.45); }
[data-theme="light"] .auth-field-icon { color: rgba(26,42,28,0.35); }
[data-theme="light"] .auth-input {
  color: #1a2a1c;
  border-color: rgba(45,106,71,0.18);
  background: #ffffff;
}
[data-theme="light"] .auth-input::placeholder { color: rgba(26,42,28,0.35); }
[data-theme="light"] .auth-input:focus {
  border-color: #3a8c5c;
  background: #ffffff;
  box-shadow: 0 0 0 3.5px rgba(58,140,92,0.1);
}
[data-theme="light"] .auth-field:focus-within .auth-field-icon { color: #3a8c5c; }
[data-theme="light"] .auth-form-extra a { color: rgba(26,42,28,0.4); }
[data-theme="light"] .auth-form-extra a:hover { color: #3a8c5c; }
[data-theme="light"] .auth-link { color: rgba(26,42,28,0.4); }
[data-theme="light"] .auth-link:hover { color: #3a8c5c; }
[data-theme="light"] .auth-error { color: #d83d3d; }

/* ============================================================
 *  Mobile Responsive
 * ============================================================ */
@media (max-width: 480px) {
  .auth-container {
    width: 96vw;
    padding: 24px 18px 22px;
    border-radius: 14px;
  }
  .auth-form-title { font-size: 1.2rem; }
  .auth-input { font-size: 0.82rem; padding: 10px 10px 10px 36px; }
  .auth-btn { font-size: 0.86rem; padding: 11px 0; }
}

/* ============================================================
 * 排行榜弹窗 — 简洁赛博风格（无动画边框）
 * ============================================================ */
.leaderboard-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 7, 0.8);
  z-index: 10000;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(16px);
}
.leaderboard-overlay.visible {
  display: flex;
}

.leaderboard-box {
  position: relative;
  width: 420px;
  max-height: 75vh;
  background: #1a1f1c;
  border-radius: 16px;
  border: 1px solid rgba(58, 140, 92, 0.2);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(58, 140, 92, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: lbIn 0.3s ease;
}
@keyframes lbIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.lb-close {
  position: absolute;
  top: 10px; right: 12px;
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  font-size: 1.4rem;
  cursor: pointer;
  z-index: 10;
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
}
.lb-close:hover { color: #fff; background: rgba(255,255,255,0.1); }
[data-theme="light"] .lb-close { color: rgba(0,0,0,0.35); }
[data-theme="light"] .lb-close:hover { color: #1a1f1c; background: rgba(0,0,0,0.06); }

.lb-header {
  padding: 20px 20px 12px;
  border-bottom: 1px solid rgba(58, 140, 92, 0.15);
}
.lb-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #3a8c5c;
  text-align: center;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.lb-tabs {
  display: flex;
  gap: 0;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  padding: 3px;
}
.lb-tab {
  flex: 1;
  padding: 8px 12px;
  border: none;
  background: transparent;
  font-size: 0.82rem;
  font-weight: 600;
  color: #9ca3af;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}
.lb-tab.active {
  background: linear-gradient(135deg, #2d6a47, #3a8c5c);
  color: #fff;
  box-shadow: 0 2px 8px rgba(45, 106, 71, 0.3);
}

.lb-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px 16px;
}
.lb-loading, .lb-empty {
  text-align: center;
  color: #6b7f74;
  padding: 40px 20px;
  font-size: 0.88rem;
}

/* 排行榜表格 */
.lb-table-header {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  margin-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7f74;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(58, 140, 92, 0.12);
}
.lb-col-rank { width: 36px; text-align: center; flex-shrink: 0; }
.lb-col-name { flex: 1; }
.lb-col-score { width: 70px; text-align: right; flex-shrink: 0; }
.lb-col-grade { width: 40px; text-align: center; flex-shrink: 0; }

.leaderboard-item {
  display: flex;
  align-items: center;
  padding: 10px 10px;
  margin-bottom: 6px;
  background: rgba(58, 140, 92, 0.04);
  border: 1px solid rgba(58, 140, 92, 0.08);
  border-radius: 8px;
  transition: all 0.2s;
}
.leaderboard-item:hover {
  background: rgba(58, 140, 92, 0.08);
  border-color: rgba(58, 140, 92, 0.2);
}

.leaderboard-rank {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: #6b7f74;
  background: rgba(107, 127, 116, 0.1);
  border-radius: 50%;
  margin-right: 12px;
  flex-shrink: 0;
}
.leaderboard-rank-1 { color: #ffd700; background: rgba(255,215,0,0.12); }
.leaderboard-rank-2 { color: #c0c0c0; background: rgba(192,192,192,0.12); }
.leaderboard-rank-3 { color: #cd7f32; background: rgba(205,127,50,0.12); }

.leaderboard-name {
  flex: 1;
  font-size: 0.88rem;
  color: #e0e8e4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-score {
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: #3a8c5c;
  margin-left: 12px;
  flex-shrink: 0;
}

.leaderboard-grade {
  font-size: 0.78rem;
  font-weight: 700;
  color: #6b7f74;
  margin-left: 10px;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}

/* 浅色模式 */
[data-theme="light"] .leaderboard-overlay { background: rgba(26, 42, 24, 0.8); }
[data-theme="light"] .leaderboard-box { background: #ffffff; border-color: rgba(45, 106, 71, 0.2); }
[data-theme="light"] .lb-title { color: #2d6a47; }
[data-theme="light"] .leaderboard-name { color: #334155; }
[data-theme="light"] .leaderboard-score { color: #2d6a47; }
[data-theme="light"] .leaderboard-item { background: rgba(45, 106, 71, 0.03); border-color: rgba(45, 106, 71, 0.08); }
[data-theme="light"] .leaderboard-item:hover { background: rgba(45, 106, 71, 0.06); }
[data-theme="light"] .lb-table-header { color: #94a3b8; }
[data-theme="light"] .lb-loading, [data-theme="light"] .lb-empty { color: #94a3b8; }

/* 小屏 */
@media (max-width: 480px) {
  .leaderboard-box { width: 95vw; max-height: 80vh; }
  .lb-title { font-size: 1.05rem; }
  .leaderboard-item { padding: 8px 8px; }
  .leaderboard-rank { width: 28px; height: 28px; font-size: 0.78rem; }
  .leaderboard-name { font-size: 0.82rem; }
  .leaderboard-score { font-size: 0.78rem; }
}

/* ============================================================
 * 排行榜独立页面样式
 * ============================================================ */
.lb-page-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.lb-page-header {
  text-align: center;
  margin-bottom: 28px;
}

.lb-page-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--sage, #3a8c5c);
  margin: 0 0 20px;
  letter-spacing: 2px;
}

.lb-page-body {
  margin-top: 16px;
}

/* 浅色模式 - 排行榜页面 */
[data-theme="light"] .lb-page-container {
  background: linear-gradient(180deg, #f8fbf9 0%, #ffffff 100%);
  border-radius: var(--radius-lg, 20px);
}
[data-theme="light"] .lb-page-title { color: #2d6a47; }

/* 小屏 - 排行榜页面 */
@media (max-width: 480px) {
  .lb-page-title { font-size: 1.3rem; }
  .lb-page-container { padding: 20px 12px 40px; }
}

/* ============================================================
 * 搜索页面 — 明亮清新风格
 * ============================================================ */
.search-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  background: linear-gradient(180deg, #f8fbf9 0%, #ffffff 100%);
  border-radius: var(--radius-lg, 20px);
}

.search-hero {
  text-align: center;
  padding: 40px 0 24px;
}
.search-hero-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1a3a2a;
  margin: 0 0 8px;
}
.search-hero-subtitle {
  color: #6b7f74;
  margin: 0 0 24px;
  font-size: 0.95rem;
}

/* 搜索栏 — 明亮风格 */
.search-bar {
  display: flex;
  max-width: 640px;
  margin: 0 auto;
  border-radius: 28px;
  overflow: hidden;
  border: 2px solid #c8d9cf;
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(26, 58, 42, 0.06);
  transition: border-color 0.3s, box-shadow 0.3s;
}
[data-theme="dark"] .search-bar {
  background: #1e2520;
  border-color: #3a5045;
}
.search-bar:focus-within {
  border-color: #3a8c5c;
  box-shadow: 0 0 0 4px rgba(58, 140, 92, 0.1), 0 4px 20px rgba(26, 58, 42, 0.1);
}
.search-bar-input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  background: transparent;
  color: #1a1a1a;
  font-size: 1rem;
  outline: none;
}
[data-theme="dark"] .search-bar-input {
  color: #e8efe9;
}
.search-bar-input::placeholder {
  color: #a8b5ad;
}
[data-theme="dark"] .search-bar-input::placeholder {
  color: #6b7f74;
}
.search-bar-btn {
  padding: 14px 28px;
  background: linear-gradient(135deg, #3a8c5c, #2d6a47);
  color: #fff;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}
.search-bar-btn:hover {
  background: linear-gradient(135deg, #4aa86e, #3a8c5c);
}

/* 搜索筛选 — 明亮风格 */
.search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 20px 0;
  padding: 0 10px;
}
.search-filter-label {
  color: #6b7f74;
  font-size: 0.85rem;
  line-height: 32px;
}
.search-filter-chip {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 0.82rem;
  cursor: pointer;
  border: 1.5px solid #d4e0da;
  background: #ffffff;
  color: #4a635a;
  transition: all 0.2s;
  user-select: none;
}
.search-filter-chip:hover {
  border-color: #3a8c5c;
  background: #f4f9f6;
}
.search-filter-chip.selected {
  background: #e8f5ec;
  border-color: #3a8c5c;
  color: #2d6a47;
  font-weight: 600;
}

/* 搜索结果区域 — 明亮 */
.search-results-area {
  min-height: 200px;
}

.search-empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #8a9b92;
}
.search-empty-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.5;
}
.search-empty-hint {
  font-size: 0.85rem;
  margin-top: 8px;
  opacity: 0.7;
}

.search-loading {
  text-align: center;
  padding: 40px;
  color: #6b7f74;
}
.search-loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(58,140,92,0.15);
  border-top-color: #3a8c5c;
  border-radius: 50%;
  margin: 0 auto 12px;
  animation: searchSpin 0.8s linear infinite;
}
@keyframes searchSpin {
  to { transform: rotate(360deg); }
}

.search-no-result {
  text-align: center;
  padding: 40px;
  color: #8a9b92;
}

/* 搜索结果分区 — 明亮 */
.search-section {
  margin-bottom: 28px;
}
.search-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a3a2a;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e8f0eb;
}
.search-section-count {
  font-size: 0.8rem;
  font-weight: 400;
  color: #8a9b92;
  margin-left: 8px;
}

/* 搜索结果卡片 — 明亮清爽 */
.search-result-card {
  padding: 14px 18px;
  margin-bottom: 8px;
  border-radius: 12px;
  border: 1px solid #e4ede8;
  background: #ffffff;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.search-result-card:hover {
  border-color: #3a8c5c;
  box-shadow: 0 2px 12px rgba(58, 140, 92, 0.08);
  transform: translateY(-1px);
}

.search-result-local {
  cursor: pointer;
}
.search-result-local:hover {
  cursor: pointer;
  background: #f6faf8;
}

.search-result-stem {
  color: #1a3a2a;
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 8px;
}
.search-result-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.search-result-tag {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  background: #e8f5ec;
  color: #2d6a47;
}
.search-result-module {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  background: #eef4fc;
  color: #4a7bb8;
}

.search-result-text {
  color: #556b5d;
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 8px;
}
.search-result-link {
  color: #3a8c5c;
  font-size: 0.82rem;
  text-decoration: none;
}
.search-result-link:hover {
  text-decoration: underline;
}

/* 外部搜索网格 */
.search-external-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 10px;
}
.search-result-external {
  text-decoration: none;
  color: inherit;
}

/* 搜索结果内容卡片 — 明亮 */
.search-result-source {
  font-size: 0.72rem;
  font-weight: 600;
  color: #3a8c5c;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  opacity: 0.7;
}
.search-result-title {
  font-size: 1rem;
  font-weight: 600;
  color: #1a3a2a;
  margin-bottom: 8px;
  line-height: 1.4;
}
[data-theme="dark"] .search-result-title {
  color: #e0e8e4;
}
.search-result-abstract {
  font-size: 0.88rem;
  color: #5a6e64;
  line-height: 1.7;
  margin-bottom: 10px;
}
[data-theme="dark"] .search-result-abstract {
  color: #9ca3af;
}
.search-result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}
.search-tag {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  background: #f0f7f3;
  color: #2d6a47;
  border: 1px solid #d4e8dc;
  font-weight: 500;
}
[data-theme="dark"] .search-tag {
  background: rgba(58,140,92,0.1);
  color: #6bc48e;
  border-color: rgba(58,140,92,0.2);
}
.search-result-goto {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: #3a8c5c;
  text-decoration: none;
  border-radius: 6px;
  background: #f4f9f6;
  transition: background 0.2s;
  font-weight: 500;
}
.search-result-goto:hover {
  background: #e8f5ec;
  text-decoration: none;
}
/* 无摘要时的链接卡片 */
.search-result-link-card {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
}
.search-result-url-text {
  font-size: 0.78rem;
  color: #8a9b92;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 400px;
}
.search-arrow {
  color: #3a8c5c;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-left: 12px;
}

/* 快速提示下拉 — 明亮 */
.search-quick-hint {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 100%;
  width: 600px;
  max-width: 90vw;
  background: #ffffff;
  border: 1px solid #d4e0da;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(26, 42, 24, 0.1);
  z-index: 100;
  overflow: hidden;
  display: none;
}
[data-theme="dark"] .search-quick-hint {
  background: #1e2520;
  border-color: #3a5045;
}
.search-quick-item {
  padding: 10px 16px;
  font-size: 0.85rem;
  color: #4a635a;
  cursor: pointer;
  border-bottom: 1px solid #f0f5f2;
  transition: background 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-quick-item:hover {
  background: #f4f9f6;
  color: #2d6a47;
}
[data-theme="dark"] .search-quick-item {
  color: #9ca3af;
  border-color: #2a332e;
}
[data-theme="dark"] .search-quick-item:hover {
  background: rgba(58,140,92,0.08);
  color: #6bc48e;
}

/* Tag 分组 — 明亮风格 */
.search-tag-group {
  margin-bottom: 24px;
  background: #fafdfb;
  border-radius: 14px;
  padding: 16px;
  border: 1px solid #e8f0eb;
}
.search-tag-group-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e2efe8;
}
.search-tag-group-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #2d6a47;
  letter-spacing: 0.02em;
}
.search-tag-group-count {
  font-size: 0.78rem;
  color: #8a9b92;
  background: #e8f0eb;
  padding: 2px 10px;
  border-radius: 10px;
}
.search-tag-group-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.search-tag-active {
  background: #d4edda !important;
  border-color: #3a8c5c !important;
  color: #155724 !important;
  font-weight: 700 !important;
}
[data-theme="dark"] .search-tag-active {
  background: rgba(58, 140, 92, 0.25) !important;
  color: #6bc48e !important;
}
[data-theme="dark"] .search-tag-group {
  background: #1a1f1c;
  border-color: #2e3833;
}
[data-theme="dark"] .search-tag-group-header {
  border-bottom-color: #2e3833;
}
[data-theme="dark"] .search-tag-group-name {
  color: #6bc48e;
}
[data-theme="dark"] .search-result-card {
  background: #1a1f1c;
  border-color: #2e3833;
}
[data-theme="dark"] .search-result-card:hover {
  border-color: #3a8c5c;
  background: #222926;
}
[data-theme="dark"] .search-result-stem {
  color: #e0e8e4;
}
[data-theme="dark"] .search-result-text {
  color: #9ca3af;
}
[data-theme="dark"] .search-result-tag {
  background: rgba(58,140,92,0.1);
  color: #6bc48e;
}
[data-theme="dark"] .search-result-module {
  background: rgba(74,124,196,0.1);
  color: #6a9cc4;
}
[data-theme="dark"] .search-filter-chip {
  background: #1a1f1c;
  border-color: #3a403d;
  color: #9ca3af;
}
[data-theme="dark"] .search-filter-chip.selected {
  background: rgba(58,140,92,0.15);
  color: #6bc48e;
}
[data-theme="dark"] .search-section-title {
  color: #e0e8e4;
  border-bottom-color: #2e3833;
}
[data-theme="dark"] .search-empty-state,
[data-theme="dark"] .search-no-result {
  color: #6b7f74;
}
[data-theme="dark"] .search-result-goto {
  background: rgba(58,140,92,0.08);
}

/* 小屏自适应 */
@media (max-width: 640px) {
  .search-hero-title { font-size: 1.5rem; }
  .search-bar { border-radius: 20px; }
  .search-bar-input { padding: 12px 14px; font-size: 0.9rem; }
  .search-bar-btn { padding: 12px 18px; font-size: 0.85rem; }
  .search-external-grid { grid-template-columns: 1fr; }
  .search-quick-hint { width: 90vw; }
}

/* 模块筛选 chips */
.search-module-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 12px 0 0;
  padding: 0 10px;
}
.search-module-chip {
  padding: 5px 12px;
  border-radius: 14px;
  font-size: 0.8rem;
  cursor: pointer;
  border: 1.5px solid #d4e0da;
  background: #ffffff;
  color: #4a635a;
  transition: all 0.2s;
  user-select: none;
}
.search-module-chip:hover {
  border-color: #3a8c5c;
  background: #f4f9f6;
}
.search-module-chip.selected {
  background: #e8f5ec;
  border-color: #3a8c5c;
  color: #2d6a47;
  font-weight: 600;
}
[data-theme="dark"] .search-module-chip {
  background: #1a1f1c;
  border-color: #3a403d;
  color: #9ca3af;
}
[data-theme="dark"] .search-module-chip.selected {
  background: rgba(58,140,92,0.15);
  color: #6bc48e;
}

/* 搜索高亮 */
mark.search-highlight {
  background: rgba(58, 140, 92, 0.2);
  color: inherit;
  padding: 1px 2px;
  border-radius: 3px;
  font-weight: 600;
}
[data-theme="dark"] mark.search-highlight {
  background: rgba(58, 140, 92, 0.3);
}

/* 难度徽章 */
.search-diff-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.search-diff-easy {
  background: #e8f5e9;
  color: #2e7d32;
}
.search-diff-medium {
  background: #fff8e1;
  color: #f57f17;
}
.search-diff-hard {
  background: #fce4ec;
  color: #c62828;
}
[data-theme="dark"] .search-diff-easy {
  background: rgba(46, 125, 50, 0.15);
  color: #81c784;
}
[data-theme="dark"] .search-diff-medium {
  background: rgba(245, 127, 23, 0.15);
  color: #ffb74d;
}
[data-theme="dark"] .search-diff-hard {
  background: rgba(198, 40, 40, 0.15);
  color: #ef9a9a;
}

/* 搜索结果解析预览 */
.search-result-explanation {
  font-size: 0.82rem;
  color: #8a9b92;
  line-height: 1.5;
  margin-bottom: 8px;
  padding: 6px 10px;
  background: #f8faf9;
  border-radius: 6px;
  border-left: 3px solid #d4e8dc;
}
[data-theme="dark"] .search-result-explanation {
  background: rgba(255,255,255,0.03);
  border-left-color: #2e3833;
  color: #6b7f74;
}

/* 搜索更多提示 */
.search-more-hint {
  text-align: center;
  padding: 10px;
  font-size: 0.82rem;
  color: #8a9b92;
  margin-top: 8px;
}
[data-theme="dark"] .search-more-hint {
  color: #6b7f74;
}

/* ============================================================
 * 知识卡片 — Anri 动漫风格
 * ============================================================ */
.knowledge-section {
  grid-column: 1 / -1;
}
.knowledge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.knowledge-title {
  font-family: var(--font-serif, 'Noto Serif SC', serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: #d46b9a;
  margin-bottom: 4px;
}
.knowledge-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted, #8a8a8a);
}
.knowledge-refresh-btn {
  padding: 6px 14px;
  border-radius: 16px;
  border: 1.5px solid #f0c8e0;
  background: linear-gradient(135deg, #fff5fa, #ffe8f4);
  color: #c45a8a;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

/* ============================================================
 * v3.1 AI 生物课堂 — 入口页 + 播放器样式
 * ============================================================ */

/* ----- 课堂入口页 ----- */
.cls-page {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}
.cls-page-header {
  text-align: center;
  margin-bottom: 32px;
}
.cls-page-icon {
  font-size: 56px;
  margin-bottom: 12px;
}
.cls-page-title {
  font-family: var(--font-serif, "Noto Serif SC", serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  margin: 0 0 10px;
}
.cls-page-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary, #555);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}
.cls-input-row {
  display: flex;
  gap: 10px;
  margin-bottom: 28px;
}
.cls-input-row input {
  flex: 1;
  padding: 14px 18px;
  border: 1.5px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-md, 12px);
  background: var(--surface-primary, #fff);
  color: var(--text-primary, #1a1a1a);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
}
.cls-input-row input:focus {
  border-color: var(--color-primary, #4a7c59);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.15);
}
.cls-input-row button {
  padding: 0 28px;
  border: none;
  border-radius: var(--radius-md, 12px);
  background: linear-gradient(135deg, var(--color-primary, #4a7c59), var(--color-primary-light, #5d9a72));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: transform var(--transition-fast, 0.15s ease), box-shadow var(--transition-fast, 0.15s ease);
  box-shadow: 0 4px 12px rgba(74, 124, 89, 0.25);
}
.cls-input-row button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(74, 124, 89, 0.35);
}
.cls-section-label {
  font-size: 0.82rem;
  color: var(--text-muted, #8a8a8a);
  margin-bottom: 12px;
  font-weight: 500;
}
.cls-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.cls-topic-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1.5px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-md, 12px);
  background: var(--surface-primary, #fff);
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition-fast, 0.15s ease);
  text-align: left;
}
.cls-topic-card:hover {
  border-color: var(--color-primary, #4a7c59);
  background: var(--color-primary-50, #edf5f0);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(26, 58, 42, 0.08));
}
.cls-topic-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}
.cls-topic-name {
  flex: 1;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary, #1a1a1a);
}
.cls-topic-arrow {
  color: var(--color-primary, #4a7c59);
  font-weight: 600;
  transition: transform var(--transition-fast, 0.15s ease);
}
.cls-topic-card:hover .cls-topic-arrow {
  transform: translateX(3px);
}
.cls-ai-hint {
  margin-top: 16px;
  text-align: center;
  font-size: 0.85rem;
  min-height: 20px;
}
@media (max-width: 640px) {
  .cls-topic-grid { grid-template-columns: 1fr; }
  .cls-input-row { flex-direction: column; }
  .cls-input-row button { padding: 12px; }
}

/* ----- 课堂播放器（全屏覆盖层） ----- */
.classroom-active {
  overflow: hidden;
}
.classroom-shell {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--surface-secondary, #faf7f2);
  display: flex;
  flex-direction: column;
  font-family: inherit;
}
.classroom-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface-primary, #fff);
  border-bottom: 1px solid var(--border-light, #ece8e1);
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(26, 58, 42, 0.06));
}
.classroom-title {
  font-family: var(--font-serif, "Noto Serif SC", serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-deep, #1a3a2a);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.classroom-actions {
  display: flex;
  gap: 8px;
}
.cls-btn {
  padding: 6px 12px;
  border: 1px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-primary, #fff);
  color: var(--text-primary, #1a1a1a);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition-fast, 0.15s ease);
}
.cls-btn:hover {
  background: var(--color-primary-50, #edf5f0);
  border-color: var(--color-primary, #4a7c59);
}

.classroom-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}
.classroom-stage {
  flex: 1;
  position: relative;
  background: #fff;
  overflow: hidden;
}
.classroom-sidebar {
  width: 360px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border-light, #ece8e1);
  background: var(--surface-secondary, #faf7f2);
}
.cls-scene-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-light, #ece8e1);
  background: var(--surface-primary, #fff);
}
.cls-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-primary, #fff);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  color: var(--text-secondary, #555);
  white-space: nowrap;
  transition: all var(--transition-fast, 0.15s ease);
  min-width: 72px;
}
.cls-tab.active {
  border-color: var(--color-primary, #4a7c59);
  background: var(--color-primary-50, #edf5f0);
  color: var(--color-primary-dark, #3a6347);
  font-weight: 600;
}
.cls-tab.done {
  opacity: 0.55;
  text-decoration: line-through;
}
.cls-tab-num {
  font-size: 0.68rem;
  color: var(--text-muted, #8a8a8a);
}
.cls-tab-name {
  margin-top: 2px;
}
.cls-dialog {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}
.cls-msg {
  word-wrap: break-word;
}
.cls-msg-teacher {
  border-left: 3px solid var(--color-primary, #4a7c59) !important;
}
.cls-msg-assistant {
  border-left: 3px solid #c4956a !important;
}
.cls-msg-student-top {
  border-left: 3px solid #5d9a72 !important;
}
.cls-msg-student-confused {
  border-left: 3px solid #e8a830 !important;
}
.cls-msg-student-app {
  border-left: 3px solid #c45a7a !important;
}
.cls-input-row {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border-light, #ece8e1);
  background: var(--surface-primary, #fff);
}
.cls-input-row input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-primary, #fff);
  color: var(--text-primary, #1a1a1a);
  font-size: 0.88rem;
  font-family: inherit;
  outline: none;
}
.cls-input-row input:focus {
  border-color: var(--color-primary, #4a7c59);
}
.cls-input-row button {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm, 6px);
  background: var(--color-primary, #4a7c59);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.classroom-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: var(--surface-primary, #fff);
  border-top: 1px solid var(--border-light, #ece8e1);
}
.cls-nav-btn {
  padding: 8px 16px;
  border: 1px solid var(--border-default, #e0dcd5);
  border-radius: var(--radius-sm, 6px);
  background: var(--surface-primary, #fff);
  color: var(--text-primary, #1a1a1a);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition-fast, 0.15s ease);
}
.cls-nav-btn:hover {
  background: var(--color-primary-50, #edf5f0);
  border-color: var(--color-primary, #4a7c59);
}
.cls-progress {
  flex: 1;
  position: relative;
  height: 8px;
  background: var(--border-light, #ece8e1);
  border-radius: 4px;
  overflow: hidden;
}
.cls-progress-bar {
  position: absolute;
  inset: 0 auto 0 0;
  background: linear-gradient(90deg, var(--color-primary, #4a7c59), var(--color-primary-light, #5d9a72));
  transition: width 0.4s ease;
  border-radius: 4px;
}
.cls-progress-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-secondary, #555);
  font-weight: 600;
}

.cls-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary, #555);
  font-size: 0.95rem;
  background: linear-gradient(135deg, var(--color-primary-50, #edf5f0), #fff);
}
.cls-loading::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-right: 10px;
  border: 2px solid var(--color-primary, #4a7c59);
  border-top-color: transparent;
  border-radius: 50%;
  animation: cls-spin 0.8s linear infinite;
}
@keyframes cls-spin {
  to { transform: rotate(360deg); }
}

.cls-stat-card {
  background: var(--surface-primary, #fff);
  border: 1px solid var(--border-light, #ece8e1);
  border-radius: var(--radius-md, 12px);
  padding: 16px;
  text-align: center;
}
.cls-stat-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary, #4a7c59);
  margin-bottom: 4px;
}
.cls-stat-label {
  font-size: 0.78rem;
  color: var(--text-muted, #8a8a8a);
}

/* 响应式：移动端竖向布局 */
@media (max-width: 900px) {
  .classroom-body { flex-direction: column; }
  .classroom-sidebar { width: 100%; height: 45%; border-left: none; border-top: 1px solid var(--border-light, #ece8e1); }
  .classroom-stage { height: 55%; }
  .cls-tab-name { display: none; }
  .cls-tab { min-width: 36px; padding: 6px 8px; }
}

.knowledge-refresh-btn:hover {
  background: linear-gradient(135deg, #ffe0ec, #ffd0e4);
  border-color: #d46b9a;
  box-shadow: 0 2px 10px rgba(212, 107, 154, 0.15);
}
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.k-card {
  position: relative;
  background: linear-gradient(145deg, #ffffff 0%, #fefbff 40%, #fff5fb 100%);
  border: 1.5px solid #fce8f2;
  border-radius: 16px;
  padding: 20px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  cursor: default;
}
.k-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(212, 107, 154, 0.12);
  border-color: #f0b8d8;
}
/* 装饰性角标 */
.k-card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 48px;
  height: 48px;
  background: radial-gradient(circle at 100% 0%, rgba(212,107,154,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.k-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #f0a0d0, #d46b9a, #c45a8a, #d46b9a, #f0a0d0);
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.k-card:hover::after {
  opacity: 1;
}
.k-card-category {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.k-cat-cell { background: #e8f0ff; color: #5a7bc4; }
.k-cat-gene { background: #fff0e8; color: #c47a4a; }
.k-cat-eco { background: #e8faf0; color: #4a9c6a; }
.k-cat-biochem { background: #f0e8ff; color: #8a6ac4; }
.k-cat-evol { background: #fff8e0; color: #c49a4a; }
.k-cat-fun { background: #ffe8f0; color: #c45a7a; }
.k-card-title {
  font-family: var(--font-serif, 'Noto Serif SC', serif);
  font-size: 1rem;
  font-weight: 700;
  color: #3a2a32;
  line-height: 1.4;
  margin-bottom: 8px;
}
.k-card-body {
  font-size: 0.85rem;
  color: #6a5565;
  line-height: 1.75;
  margin-bottom: 12px;
}
.k-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px dashed #f5e0ec;
}
.k-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 500;
  background: #fdf0f7;
  color: #b56a8a;
}
.k-card-difficulty {
  display: flex;
  gap: 3px;
  align-items: center;
}
.k-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #e0c8d4;
}
.k-dot.active { background: #d46b9a; }

/* 知识卡片 — 深色模式 */
[data-theme="dark"] .k-card {
  background: linear-gradient(145deg, #1a181e 0%, #1e1a22 40%, #1f181e 100%);
  border-color: #3a2835;
}
[data-theme="dark"] .k-card:hover {
  border-color: #5a3848;
  box-shadow: 0 8px 28px rgba(80, 30, 50, 0.15);
}
[data-theme="dark"] .k-card-title { color: #e8dce4; }
[data-theme="dark"] .k-card-body { color: #a08a98; }
[data-theme="dark"] .k-card-footer { border-top-color: #2e2028; }
[data-theme="dark"] .k-card-tag { background: #2e1825; color: #c48a9a; }
[data-theme="dark"] .k-dot { background: #3a2835; }
[data-theme="dark"] .k-dot.active { background: #d46b9a; }

/* 知识卡片 — 移动端响应式 */
@media (max-width: 768px) {
  .knowledge-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   移动端底部标签栏
   ============================================================ */
.bottom-tab-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--surface-primary, #ffffff);
  border-top: 1px solid var(--border-light, #ece8e1);
  padding: 4px 0;
  padding-bottom: max(4px, env(safe-area-inset-bottom));
  box-shadow: 0 -2px 12px rgba(26, 58, 42, 0.06);
  justify-content: space-around;
  align-items: center;
  gap: 0;
}

@media (max-width: 768px) {
  .bottom-tab-bar {
    display: flex;
  }
}

.bottom-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 6px 12px;
  text-decoration: none;
  color: var(--text-muted, #8a8a8a);
  transition: color 0.2s ease;
  min-width: 56px;
  flex: 1;
}

.bottom-tab svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  transition: transform 0.2s ease;
}

.bottom-tab span {
  font-size: 0.65rem;
  font-weight: 500;
  line-height: 1;
}

.bottom-tab:hover,
.bottom-tab:active {
  color: var(--color-sage, #5a7d5c);
}

.bottom-tab.active {
  color: var(--color-deep, #1a3a2a);
}

.bottom-tab.active svg {
  transform: scale(1.05);
}

/* 移动端显示底部标签栏时，页面底部留出空间 */
@media (max-width: 768px) {
  .bottom-tab-bar {
    display: flex;
    z-index: 1000;
  }

  /* 给页面主内容留出底部标签栏的空间 */
  #page-content {
    padding-bottom: 70px;
  }

  /* 移动端隐藏桌面页脚（已被底部标签栏替代，避免遮挡） */
  .footer {
    display: none;
  }
}