/* Niuber1 全站主题 — 通过 html[data-theme] 切换 */
:root,
html[data-theme="fresh"] {
  --bg: #F7FBFF;
  --bg-2: #EEF6FF;
  --card: rgba(255, 255, 255, 0.88);
  --accent: #5BB8A8;
  --accent-2: #6AA8FF;
  --gold: #F0B429;
  --pink: #F28AB2;
  --text: #2C3A4A;
  --muted: #7A8B9C;
  --radius: 22px;
  --glow: 0 0 24px rgba(91, 184, 168, 0.28);
  --glow-cyan: 0 0 24px rgba(106, 168, 255, 0.25);
  --border: rgba(44, 58, 74, 0.08);
  --nav-bg: rgba(255, 255, 255, 0.82);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(91, 184, 168, 0.22), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(106, 168, 255, 0.18), transparent 55%),
    radial-gradient(800px 520px at 50% 110%, rgba(240, 180, 41, 0.12), transparent 55%),
    linear-gradient(165deg, #F7FBFF 0%, #EEF6FF 45%, #F4FFF9 100%);
  --cta-fg: #14302C;
  --peach: #FF8A5C;
  --peach-dark: #F96D3C;
  --peach-light: #FFE0D2;
  --mint: #5BB8A8;
  --mint-dark: #3D9A8A;
  --sky: #6AA8FF;
  --sun: #F0B429;
  --berry: #F28AB2;
  --choco: #2C3A4A;
  --text-light: #7A8B9C;
  --white: #FFFFFF;
  --cream: #F7FBFF;
  --card-shadow: 0 12px 32px rgba(91, 184, 168, 0.14);
  --neon-cyan: #3A9BFF;
  --neon-pink: #F28AB2;
  --neon-purple: #8B7CFF;
  --neon-yellow: #F0B429;
  --neon-green: #5BB8A8;
  --bg-dark: #F7FBFF;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #FFFFFF;
  --text-primary: #2C3A4A;
  --text-secondary: #7A8B9C;
  --text-muted: #9AABBC;
  --border-subtle: rgba(91, 184, 168, 0.22);
}

html[data-theme="dark"] {
  --bg: #0B0F1A;
  --bg-2: #12182A;
  --card: rgba(22, 28, 48, 0.88);
  --accent: #FF8A5C;
  --accent-2: #22D3EE;
  --gold: #FFC53D;
  --pink: #FF6B9D;
  --text: #F2F4FA;
  --muted: #8B95B0;
  --glow: 0 0 28px rgba(255, 138, 92, 0.35);
  --glow-cyan: 0 0 28px rgba(34, 211, 238, 0.3);
  --border: rgba(255, 255, 255, 0.08);
  --nav-bg: rgba(18, 24, 42, 0.85);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(255, 138, 92, 0.28), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(34, 211, 238, 0.22), transparent 55%),
    radial-gradient(800px 520px at 50% 110%, rgba(255, 197, 61, 0.12), transparent 55%),
    linear-gradient(165deg, #0B0F1A 0%, #101628 45%, #0D1220 100%);
  --cta-fg: #1A120E;
  --peach: #FF8A5C;
  --peach-dark: #F96D3C;
  --peach-light: #5A3A32;
  --mint: #34D399;
  --mint-dark: #10B981;
  --sky: #38BDF8;
  --sun: #FFC53D;
  --berry: #FB7185;
  --choco: #FFE4D6;
  --text-light: #B8A99C;
  --white: rgba(36, 28, 40, 0.95);
  --cream: #2A1F28;
  --card-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
  --neon-cyan: #22D3EE;
  --neon-pink: #FF6B9D;
  --neon-purple: #C084FC;
  --neon-yellow: #FFC53D;
  --neon-green: #34D399;
  --bg-dark: #0B0F1A;
  --bg-card: rgba(22, 28, 48, 0.88);
  --bg-card-hover: rgba(30, 38, 64, 0.95);
  --text-primary: #F2F4FA;
  --text-secondary: #8B95B0;
  --text-muted: #6B7590;
  --border-subtle: rgba(255, 107, 157, 0.18);
}

html[data-theme="tech"] {
  --bg: #050B14;
  --bg-2: #0A1628;
  --card: rgba(8, 24, 48, 0.9);
  --accent: #00E5FF;
  --accent-2: #7CFFB2;
  --gold: #FFE566;
  --pink: #5B8CFF;
  --text: #E8F6FF;
  --muted: #7FA0B8;
  --glow: 0 0 28px rgba(0, 229, 255, 0.35);
  --glow-cyan: 0 0 28px rgba(124, 255, 178, 0.25);
  --border: rgba(0, 229, 255, 0.18);
  --nav-bg: rgba(5, 16, 32, 0.9);
  --stage:
    radial-gradient(900px 500px at 10% -5%, rgba(0, 229, 255, 0.22), transparent 55%),
    radial-gradient(700px 480px at 95% 10%, rgba(91, 140, 255, 0.2), transparent 55%),
    linear-gradient(165deg, #050B14 0%, #071525 50%, #040A12 100%);
  --cta-fg: #031018;
  --peach: #00E5FF;
  --peach-dark: #00B8D4;
  --peach-light: #0A3040;
  --mint: #7CFFB2;
  --mint-dark: #3DDC97;
  --sky: #5B8CFF;
  --sun: #FFE566;
  --berry: #5B8CFF;
  --choco: #E8F6FF;
  --text-light: #7FA0B8;
  --white: rgba(8, 24, 48, 0.95);
  --cream: #0A1628;
  --card-shadow: 0 12px 36px rgba(0, 229, 255, 0.12);
  --neon-cyan: #00E5FF;
  --neon-pink: #5B8CFF;
  --neon-purple: #8A7CFF;
  --neon-yellow: #FFE566;
  --neon-green: #7CFFB2;
  --bg-dark: #050B14;
  --bg-card: rgba(8, 24, 48, 0.9);
  --bg-card-hover: rgba(12, 36, 68, 0.95);
  --text-primary: #E8F6FF;
  --text-secondary: #7FA0B8;
  --text-muted: #5A7A92;
  --border-subtle: rgba(0, 229, 255, 0.2);
}

html[data-theme="nature"] {
  --bg: #F4F7EF;
  --bg-2: #E8F0DC;
  --card: rgba(255, 255, 255, 0.9);
  --accent: #6B9F4E;
  --accent-2: #C4A35A;
  --gold: #D4A017;
  --pink: #D98B6A;
  --text: #2F3B2A;
  --muted: #738066;
  --glow: 0 0 24px rgba(107, 159, 78, 0.28);
  --glow-cyan: 0 0 24px rgba(196, 163, 90, 0.22);
  --border: rgba(47, 59, 42, 0.08);
  --nav-bg: rgba(255, 255, 255, 0.85);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(107, 159, 78, 0.2), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(196, 163, 90, 0.16), transparent 55%),
    linear-gradient(165deg, #F4F7EF 0%, #EAF2E0 50%, #F7F3E8 100%);
  --cta-fg: #1E2A18;
  --peach: #D98B6A;
  --peach-dark: #C46F4E;
  --peach-light: #F0E4D8;
  --mint: #6B9F4E;
  --mint-dark: #518038;
  --sky: #7BA3C9;
  --sun: #D4A017;
  --berry: #D98B6A;
  --choco: #2F3B2A;
  --text-light: #738066;
  --white: #FFFFFF;
  --cream: #F4F7EF;
  --card-shadow: 0 12px 32px rgba(107, 159, 78, 0.12);
  --neon-cyan: #6B9F4E;
  --neon-pink: #D98B6A;
  --neon-purple: #8B9A5B;
  --neon-yellow: #D4A017;
  --neon-green: #6B9F4E;
  --bg-dark: #F4F7EF;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: #FFFFFF;
  --text-primary: #2F3B2A;
  --text-secondary: #738066;
  --text-muted: #93A088;
  --border-subtle: rgba(107, 159, 78, 0.22);
}

html[data-theme="city"] {
  --bg: #12151C;
  --bg-2: #1A1F2B;
  --card: rgba(32, 38, 52, 0.92);
  --accent: #FFB020;
  --accent-2: #6E8BFF;
  --gold: #FFB020;
  --pink: #FF7A59;
  --text: #EEF1F7;
  --muted: #9AA3B5;
  --glow: 0 0 28px rgba(255, 176, 32, 0.3);
  --glow-cyan: 0 0 28px rgba(110, 139, 255, 0.25);
  --border: rgba(255, 255, 255, 0.1);
  --nav-bg: rgba(26, 31, 43, 0.92);
  --stage:
    radial-gradient(900px 500px at 15% -5%, rgba(255, 176, 32, 0.18), transparent 55%),
    radial-gradient(700px 480px at 95% 10%, rgba(110, 139, 255, 0.16), transparent 55%),
    linear-gradient(165deg, #12151C 0%, #181D28 50%, #0F1218 100%);
  --cta-fg: #1A1408;
  --peach: #FF7A59;
  --peach-dark: #E85A38;
  --peach-light: #3A2A28;
  --mint: #4ADE80;
  --mint-dark: #22C55E;
  --sky: #6E8BFF;
  --sun: #FFB020;
  --berry: #FF7A59;
  --choco: #EEF1F7;
  --text-light: #9AA3B5;
  --white: rgba(32, 38, 52, 0.96);
  --cream: #1A1F2B;
  --card-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
  --neon-cyan: #6E8BFF;
  --neon-pink: #FF7A59;
  --neon-purple: #A78BFA;
  --neon-yellow: #FFB020;
  --neon-green: #4ADE80;
  --bg-dark: #12151C;
  --bg-card: rgba(32, 38, 52, 0.92);
  --bg-card-hover: rgba(42, 50, 68, 0.98);
  --text-primary: #EEF1F7;
  --text-secondary: #9AA3B5;
  --text-muted: #6F788C;
  --border-subtle: rgba(255, 176, 32, 0.2);
}

html[data-theme="sunset"] {
  --bg: #FFF5EB;
  --bg-2: #FFE8D6;
  --card: rgba(255, 252, 248, 0.92);
  --accent: #FF6B35;
  --accent-2: #F7B801;
  --gold: #FFB703;
  --pink: #E85D75;
  --text: #3D2C29;
  --muted: #9A7B6F;
  --glow: 0 0 24px rgba(255, 107, 53, 0.28);
  --glow-cyan: 0 0 24px rgba(247, 184, 1, 0.22);
  --border: rgba(61, 44, 41, 0.08);
  --nav-bg: rgba(255, 252, 248, 0.88);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(255, 107, 53, 0.22), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(247, 184, 1, 0.18), transparent 55%),
    linear-gradient(165deg, #FFF5EB 0%, #FFE8D6 50%, #FFF0E8 100%);
  --cta-fg: #2A1810;
  --peach: #FF6B35;
  --peach-dark: #E85A28;
  --peach-light: #FFE0D0;
  --mint: #2A9D8F;
  --mint-dark: #1F7A6E;
  --sky: #E9C46A;
  --sun: #F7B801;
  --berry: #E85D75;
  --choco: #3D2C29;
  --text-light: #9A7B6F;
  --white: #FFFFFF;
  --cream: #FFF5EB;
  --card-shadow: 0 12px 32px rgba(255, 107, 53, 0.14);
  --neon-cyan: #2A9D8F;
  --neon-pink: #E85D75;
  --neon-purple: #E76F51;
  --neon-yellow: #F7B801;
  --neon-green: #2A9D8F;
  --bg-dark: #FFF5EB;
  --bg-card: rgba(255, 252, 248, 0.94);
  --bg-card-hover: #FFFFFF;
  --text-primary: #3D2C29;
  --text-secondary: #9A7B6F;
  --text-muted: #B89A8E;
  --border-subtle: rgba(255, 107, 53, 0.22);
}

html[data-theme="ocean"] {
  --bg: #E8F6F8;
  --bg-2: #D4EEF2;
  --card: rgba(255, 255, 255, 0.9);
  --accent: #0077B6;
  --accent-2: #00B4D8;
  --gold: #48CAE4;
  --pink: #90E0EF;
  --text: #023E8A;
  --muted: #5B8FA8;
  --glow: 0 0 24px rgba(0, 119, 182, 0.25);
  --glow-cyan: 0 0 24px rgba(0, 180, 216, 0.22);
  --border: rgba(2, 62, 138, 0.1);
  --nav-bg: rgba(255, 255, 255, 0.88);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(0, 180, 216, 0.2), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(0, 119, 182, 0.16), transparent 55%),
    linear-gradient(165deg, #E8F6F8 0%, #D4EEF2 50%, #CAF0F8 100%);
  --cta-fg: #012A4A;
  --peach: #00B4D8;
  --peach-dark: #0096C7;
  --peach-light: #CAF0F8;
  --mint: #48CAE4;
  --mint-dark: #00B4D8;
  --sky: #0077B6;
  --sun: #90E0EF;
  --berry: #48CAE4;
  --choco: #023E8A;
  --text-light: #5B8FA8;
  --white: #FFFFFF;
  --cream: #E8F6F8;
  --card-shadow: 0 12px 32px rgba(0, 119, 182, 0.12);
  --neon-cyan: #00B4D8;
  --neon-pink: #48CAE4;
  --neon-purple: #0077B6;
  --neon-yellow: #90E0EF;
  --neon-green: #48CAE4;
  --bg-dark: #E8F6F8;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: #FFFFFF;
  --text-primary: #023E8A;
  --text-secondary: #5B8FA8;
  --text-muted: #7AA8BC;
  --border-subtle: rgba(0, 180, 216, 0.25);
}

html[data-theme="candy"] {
  --bg: #FFF0F5;
  --bg-2: #FFE4EC;
  --card: rgba(255, 255, 255, 0.92);
  --accent: #FF6B9D;
  --accent-2: #C77DFF;
  --gold: #FFD166;
  --pink: #FF85A1;
  --text: #5C2A4A;
  --muted: #A87894;
  --glow: 0 0 24px rgba(255, 107, 157, 0.28);
  --glow-cyan: 0 0 24px rgba(199, 125, 255, 0.22);
  --border: rgba(92, 42, 74, 0.08);
  --nav-bg: rgba(255, 255, 255, 0.88);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(255, 107, 157, 0.2), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(199, 125, 255, 0.16), transparent 55%),
    linear-gradient(165deg, #FFF0F5 0%, #FFE4EC 50%, #F3E8FF 100%);
  --cta-fg: #3A1830;
  --peach: #FF6B9D;
  --peach-dark: #E84A82;
  --peach-light: #FFE0EA;
  --mint: #80ED99;
  --mint-dark: #57CC99;
  --sky: #C77DFF;
  --sun: #FFD166;
  --berry: #FF85A1;
  --choco: #5C2A4A;
  --text-light: #A87894;
  --white: #FFFFFF;
  --cream: #FFF0F5;
  --card-shadow: 0 12px 32px rgba(255, 107, 157, 0.14);
  --neon-cyan: #C77DFF;
  --neon-pink: #FF6B9D;
  --neon-purple: #9B5DE5;
  --neon-yellow: #FFD166;
  --neon-green: #80ED99;
  --bg-dark: #FFF0F5;
  --bg-card: rgba(255, 255, 255, 0.94);
  --bg-card-hover: #FFFFFF;
  --text-primary: #5C2A4A;
  --text-secondary: #A87894;
  --text-muted: #C4A0B4;
  --border-subtle: rgba(255, 107, 157, 0.22);
}

html[data-theme="ink"] {
  --bg: #F5F2EB;
  --bg-2: #EDE8DE;
  --card: rgba(255, 253, 248, 0.94);
  --accent: #2C2C2C;
  --accent-2: #6B5B4F;
  --gold: #A67C52;
  --pink: #8B7355;
  --text: #1A1A1A;
  --muted: #6E6A63;
  --glow: 0 0 24px rgba(44, 44, 44, 0.12);
  --glow-cyan: 0 0 24px rgba(166, 124, 82, 0.16);
  --border: rgba(26, 26, 26, 0.1);
  --nav-bg: rgba(255, 253, 248, 0.9);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(44, 44, 44, 0.06), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(166, 124, 82, 0.1), transparent 55%),
    linear-gradient(165deg, #F5F2EB 0%, #EDE8DE 50%, #F8F5EF 100%);
  --cta-fg: #FAFAFA;
  --peach: #6B5B4F;
  --peach-dark: #4A3F38;
  --peach-light: #E8E0D4;
  --mint: #5C6B5A;
  --mint-dark: #3F4A3E;
  --sky: #6B5B4F;
  --sun: #A67C52;
  --berry: #8B7355;
  --choco: #1A1A1A;
  --text-light: #6E6A63;
  --white: #FFFFFF;
  --cream: #F5F2EB;
  --card-shadow: 0 12px 28px rgba(26, 26, 26, 0.08);
  --neon-cyan: #6B5B4F;
  --neon-pink: #8B7355;
  --neon-purple: #4A3F38;
  --neon-yellow: #A67C52;
  --neon-green: #5C6B5A;
  --bg-dark: #F5F2EB;
  --bg-card: rgba(255, 253, 248, 0.96);
  --bg-card-hover: #FFFFFF;
  --text-primary: #1A1A1A;
  --text-secondary: #6E6A63;
  --text-muted: #959088;
  --border-subtle: rgba(44, 44, 44, 0.15);
}

html[data-theme="neon"] {
  --bg: #0D0221;
  --bg-2: #1A0A36;
  --card: rgba(26, 10, 54, 0.9);
  --accent: #FF00E5;
  --accent-2: #00F5FF;
  --gold: #FFE600;
  --pink: #FF2E97;
  --text: #F8F0FF;
  --muted: #A78BBA;
  --glow: 0 0 28px rgba(255, 0, 229, 0.4);
  --glow-cyan: 0 0 28px rgba(0, 245, 255, 0.35);
  --border: rgba(255, 0, 229, 0.22);
  --nav-bg: rgba(13, 2, 33, 0.92);
  --stage:
    radial-gradient(900px 500px at 12% -8%, rgba(255, 0, 229, 0.25), transparent 55%),
    radial-gradient(700px 480px at 92% 8%, rgba(0, 245, 255, 0.2), transparent 55%),
    linear-gradient(165deg, #0D0221 0%, #1A0A36 50%, #0A0118 100%);
  --cta-fg: #120018;
  --peach: #FF00E5;
  --peach-dark: #C400B0;
  --peach-light: #3A1048;
  --mint: #00F5FF;
  --mint-dark: #00C4CC;
  --sky: #7B2FFF;
  --sun: #FFE600;
  --berry: #FF2E97;
  --choco: #F8F0FF;
  --text-light: #A78BBA;
  --white: rgba(26, 10, 54, 0.96);
  --cream: #1A0A36;
  --card-shadow: 0 12px 36px rgba(255, 0, 229, 0.2);
  --neon-cyan: #00F5FF;
  --neon-pink: #FF00E5;
  --neon-purple: #7B2FFF;
  --neon-yellow: #FFE600;
  --neon-green: #39FF14;
  --bg-dark: #0D0221;
  --bg-card: rgba(26, 10, 54, 0.9);
  --bg-card-hover: rgba(40, 16, 72, 0.96);
  --text-primary: #F8F0FF;
  --text-secondary: #A78BBA;
  --text-muted: #7A6288;
  --border-subtle: rgba(0, 245, 255, 0.25);
}

/* 全局背景跟随主题 */
html[data-theme] body {
  background: var(--stage) !important;
  background-attachment: fixed !important;
  color: var(--text) !important;
  transition: background 0.35s ease, color 0.25s ease;
}

html[data-theme] .bg-stage {
  background: var(--stage) !important;
}

/* 顶栏主题选择器 */
.theme-switcher {
  position: relative;
  z-index: 50;
  display: inline-flex;
  align-items: center;
}
.theme-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  /* 与大厅左侧「潘多拉」同款半透明，避免浅色主题下实心白块 */
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 22%, transparent),
    color-mix(in srgb, var(--accent-2) 18%, transparent));
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 18%, transparent);
  transition: transform 0.15s, border-color 0.2s;
}
.theme-switcher-btn:hover { transform: translateY(-1px); border-color: var(--accent); }
.theme-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
  display: none;
  backdrop-filter: blur(12px);
}
.theme-menu.open { display: block; }
.theme-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
}
.theme-option:hover,
.theme-option.active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}

.hall-topbar {
  position: sticky;
  top: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  padding: 6px 0;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(10px);
}
.pandora-entry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 22%, transparent),
    color-mix(in srgb, var(--accent-2) 18%, transparent));
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 22%, transparent);
  transition: transform 0.2s, filter 0.2s;
  flex-shrink: 0;
  visibility: visible !important;
}
.pandora-entry:hover { transform: translateY(-2px) scale(1.02); filter: brightness(1.05); }
.pandora-entry:disabled { opacity: 0.85; cursor: wait; transform: none; }

.pandora-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: color-mix(in srgb, var(--bg-dark) 72%, transparent);
  backdrop-filter: blur(8px);
}
.pandora-overlay.open { display: flex; }

.pandora-stage {
  width: min(420px, 92vw);
  perspective: 1600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.pandora-card {
  width: 100%;
  height: min(460px, 68vh);
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.75s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s;
  cursor: pointer;
  will-change: transform;
}
.pandora-card:hover:not(.flipped):not(.dealing) {
  transform: translateY(-6px) scale(1.015);
}
.pandora-card.flipped {
  transform: rotateY(180deg) scale(1.03);
  box-shadow: 0 28px 70px color-mix(in srgb, var(--peach-dark) 45%, transparent);
}
.pandora-card.flipping {
  pointer-events: none;
}
.pandora-card.dealing {
  animation: pandora-deal 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
  pointer-events: none;
}
.pandora-card.flip-bounce {
  animation: pandora-flip-bounce 0.55s ease;
}
.pandora-card.flipped.flip-bounce {
  transition: none;
}
@keyframes pandora-deal {
  0% { opacity: 0; transform: translateY(56px) rotateZ(-8deg) scale(0.86); }
  60% { opacity: 1; transform: translateY(-8px) rotateZ(2deg) scale(1.04); }
  100% { opacity: 1; transform: translateY(0) rotateZ(0) scale(1); }
}
@keyframes pandora-flip-bounce {
  0% { transform: rotateY(0deg) scale(1); }
  40% { transform: rotateY(95deg) scale(1.06); }
  100% { transform: rotateY(180deg) scale(1.03); }
}

.pandora-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 22px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.18);
  overflow: hidden;
}
.pandora-face.front {
  background: linear-gradient(160deg, var(--accent), var(--accent-2) 45%, var(--pink));
  color: #fff;
}
.pandora-face.front::after {
  content: '';
  position: absolute;
  top: -40%;
  left: -30%;
  width: 50%;
  height: 180%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,0.28), transparent);
  transform: rotate(18deg);
  animation: pandora-shimmer 2.8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes pandora-shimmer {
  0% { transform: translateX(-40%) rotate(18deg); opacity: 0; }
  30% { opacity: 0.9; }
  55% { transform: translateX(220%) rotate(18deg); opacity: 0; }
  100% { opacity: 0; }
}
.pandora-face.back {
  background: linear-gradient(160deg, var(--bg-dark), var(--bg-2) 40%, var(--peach-dark));
  color: var(--text);
  transform: rotateY(180deg);
}
.pandora-face .label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  opacity: 0.85;
  text-transform: uppercase;
}
.pandora-face .title {
  margin-top: 8px;
  font-size: 26px;
  font-weight: 900;
}
.pandora-face .body {
  margin-top: 22px;
  flex: 1;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.7;
  display: flex;
  align-items: center;
}
.pandora-face .meta {
  font-size: 12px;
  font-weight: 700;
  opacity: 0.8;
}
.pandora-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.pandora-actions button {
  border: none;
  border-radius: 999px;
  padding: 11px 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
}
.pandora-actions .flip {
  background: linear-gradient(135deg, var(--gold), var(--sun));
  color: var(--cta-fg);
}
.pandora-actions .redraw {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}
.pandora-actions .close {
  background: color-mix(in srgb, var(--card) 40%, transparent);
  color: var(--text);
  border: 1px solid var(--border);
}

.nav-bar .theme-switcher { margin-left: auto; }
.nav-bar .theme-switcher-btn { padding: 5px 10px; font-size: 11px; }

/* 全站返回：对齐天玄「← 返回」描边胶囊 +「大厅」文字链 */
a.niuber1-btn-back,
button.niuber1-btn-back {
  box-sizing: border-box;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border, rgba(44, 58, 74, 0.14));
  background: transparent;
  color: var(--muted, #7A8B9C);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
a.niuber1-btn-back:hover,
button.niuber1-btn-back:hover {
  color: var(--text, #2C3A4A);
  border-color: color-mix(in srgb, var(--accent, #5BB8A8) 45%, var(--border, rgba(44, 58, 74, 0.14)));
}
a.niuber1-hall-link {
  flex-shrink: 0;
  color: var(--muted, #7A8B9C);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
  padding: 4px 2px;
  transition: color 0.15s ease;
}
a.niuber1-hall-link:hover {
  color: var(--accent, #5BB8A8);
}

/* 小清新下卡片阴影更轻、文字对比更清晰 */
html[data-theme="fresh"] .game-card,
html[data-theme="nature"] .game-card {
  border-color: var(--border);
  box-shadow: var(--card-shadow);
}
html[data-theme="fresh"] .card-tag,
html[data-theme="nature"] .card-tag {
  color: var(--text);
  background: rgba(44, 58, 74, 0.05);
}