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var(--border-strong);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg),0 0 0 1px #07c1600f;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);animation:wechat-group-card-in .2s var(--ease-out-expo) both}.wechat-group-card__header{display:flex;align-items:center;gap:10px;min-width:0}.wechat-group-card__icon{width:36px;height:36px;border-radius:11px}.wechat-group-card__heading{display:flex;flex:1;flex-direction:column;min-width:0;line-height:1.35}.wechat-group-card__heading strong{overflow:hidden;font-size:14px;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.wechat-group-card__heading small{margin-top:2px;overflow:hidden;color:var(--text-muted);font-size:10px;text-overflow:ellipsis;white-space:nowrap}.wechat-group-card__close{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:30px;height:30px;color:var(--text-muted);background:transparent;border:0;border-radius:8px;cursor:pointer;transition:color var(--duration-fast) ease,background var(--duration-fast) ease}.wechat-group-card__close:hover{color:var(--text-primary);background:rgba(var(--text-primary-rgb),.07)}.wechat-group-card__qr-wrap{display:flex;align-items:center;justify-content:center;margin:14px auto 10px;padding:8px;background:#fff;border-radius:12px;box-shadow:0 8px 24px #00000029}.wechat-group-card__qr{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain;border-radius:6px}.wechat-group-card__tip{margin:0;color:var(--text-secondary);font-size:12px;line-height:1.5;text-align:center}.wechat-group-card__tip--mobile,.wechat-group-float__backdrop{display:none}@keyframes wechat-group-launcher-in{0%{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes wechat-group-card-in{0%{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 768px){.wechat-group-float{right:12px;bottom:calc(84px + env(safe-area-inset-bottom,0px))}.wechat-group-float--open{top:0;right:0;bottom:0;left:0;z-index:850;align-items:flex-end;justify-content:center;padding:12px 12px calc(76px + env(safe-area-inset-bottom,0px))}.wechat-group-launcher{width:48px;height:48px;min-height:48px;padding:5px;border-radius:50%}.wechat-group-launcher__label{display:none}.wechat-group-float__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;background:#0000008f;border:0;backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}.wechat-group-card{position:relative;width:min(100%,390px);max-height:calc(100dvh - 100px);padding:16px;overflow-y:auto;border-radius:18px}.wechat-group-card__qr-wrap{width:min(100%,252px)}.wechat-group-card__tip--desktop{display:none}.wechat-group-card__tip--mobile{display:block}}@media (max-width: 380px){.wechat-group-launcher{width:46px;height:46px;min-height:46px;padding:6px}.wechat-group-launcher__icon{width:34px;height:34px}.wechat-group-card__qr-wrap{width:min(100%,220px)}}@media (prefers-reduced-motion: reduce){.wechat-group-launcher,.wechat-group-card{animation:none}}.system-notice-shell{--system-maintenance-notice-height: 0px;display:flex;flex-direction:column;min-height:100vh}.system-notice-shell--active{--system-maintenance-notice-height: 44px}.system-maintenance-notice{position:fixed;top:0;left:0;z-index:950;display:flex;flex:0 0 var(--system-maintenance-notice-height);align-items:center;justify-content:center;gap:8px;width:100%;height:var(--system-maintenance-notice-height);padding:0 16px;color:#fff7ed;background:linear-gradient(90deg,#9a3412,#c2410c 50%,#9a3412);border-bottom:1px solid rgba(255,237,213,.34);box-shadow:0 4px 16px #4314073d;font-size:13px;font-weight:650;letter-spacing:.01em;line-height:1}.system-maintenance-notice svg{flex:0 0 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1.25;--leading-body: 1.65;--sidebar-width: 200px;--sidebar-collapsed: 80px;--nav-top-height: 56px;--header-height: 80px;--layout-padding: 40px;--section-gap: 64px;--card-gap: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--space-xs: 8px;--space-sm: 16px;--space-md: 24px;--space-lg: 32px;--space-xl: 48px;--ease-out-expo: cubic-bezier(.16, 1, .3, 1);--ease-smooth: cubic-bezier(.16, 1, .3, 1);--duration-fast: .15s;--duration-normal: .3s;--duration-slow: .5s;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--bg-card: var(--glass-bg);--bg-card-hover: var(--glass-highlight);--card-bg: var(--glass-bg);--border-color: var(--border-subtle);--primary-color: var(--accent-primary);--primary-hover: var(--accent-primary-soft);--accent-glow: var(--shadow-glow-primary);--shadow-card: var(--shadow-md);--gradient-bg: var(--gradient-aurora);--gradient-primary: var(--gradient-cyber);--gradient-card: var(--gradient-surface);--space-2xl: 64px;--z-toast: 100000}@media (max-width: 1024px){:root{--layout-padding: 24px;--section-gap: 40px;--card-gap: 20px;--header-height: 72px}}@media (max-width: 768px){:root{--font-display: clamp(34px, 10vw, 44px);--font-h1: 28px;--font-h2: 20px;--font-h3: 17px;--type-card-title: 17px;--type-key-number: clamp(28px, 9vw, 34px);--layout-padding: 16px;--section-gap: 32px;--card-gap: 16px;--header-height: 64px;--radius-lg: 12px;--radius-xl: 16px}}:root,[data-theme=deep-space]{color-scheme:dark;--bg-deep: #03050c;--bg-primary: #05070f;--bg-secondary: #0b0f1c;--surface-1: #0b0f1c;--surface-2: #111826;--surface-3: #17202f;--surface-4: #1e293b;--surface-1-rgb: 11, 15, 28;--surface-2-rgb: 17, 24, 38;--surface-3-rgb: 23, 32, 47;--surface-4-rgb: 30, 41, 59;--accent-primary: #5b8cff;--accent-primary-rgb: 91, 140, 255;--accent-primary-soft: #8aabff;--accent-primary-fg: #d5e2ff;--accent-secondary: #5eead4;--accent-secondary-rgb: 94, 234, 212;--accent-secondary-fg: #b8f5e9;--accent-cyan: #5eead4;--accent-emerald: 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#0ea5a5;--accent-secondary-rgb: 14, 165, 165;--accent-secondary-fg: #0b7a7a;--accent-cyan: #0ea5a5;--accent-emerald: #159e73;--accent-emerald-rgb: 21, 158, 115;--danger-rgb: 230, 69, 69;--warning-rgb: 217, 119, 6;--glass-bg: rgba(255, 255, 255, .75);--glass-border: rgba(12, 19, 34, .08);--glass-highlight: rgba(46, 91, 238, .08);--border-subtle: rgba(12, 19, 34, .08);--border-strong: rgba(12, 19, 34, .16);--text-primary: #0c1322;--text-primary-rgb: 12, 19, 34;--text-secondary: #33405a;--text-secondary-rgb: 51, 64, 90;--text-muted: #5e6b84;--text-muted-rgb: 94, 107, 132;--shadow-sm: 0 1px 2px rgba(12, 19, 34, .05);--shadow-md: 0 8px 28px rgba(12, 19, 34, .08);--shadow-lg: 0 16px 44px rgba(12, 19, 34, .12);--shadow-glow-primary: 0 0 20px rgba(46, 91, 238, .16);--shadow-glow-cyan: 0 0 20px rgba(14, 165, 165, .16);--gradient-cyber: linear-gradient(100deg, #2e5bee 0%, #0ea5a5 100%);--gradient-surface: linear-gradient(180deg, rgba(12, 19, 34, .02) 0%, transparent 100%);--gradient-aurora: 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