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16px rgba(0, 0, 0, .4);--shadow-elevated: 0 12px 32px rgba(0, 0, 0, .6);--ring-color: rgba(250, 250, 250, .55)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Roboto,sans-serif;background:var(--color-bg-gradient);color:var(--color-text);line-height:1.7;min-height:100vh;transition:background .25s ease,color .25s ease;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;background-image:linear-gradient(var(--color-grid) 1px,transparent 1px),linear-gradient(90deg,var(--color-grid) 1px,transparent 1px);background-size:32px 32px;opacity:.5;z-index:0}#app{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{color:var(--color-text-strong);font-weight:600;line-height:1.35}p{line-height:1.7}a{color:var(--color-text-strong);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-accent)}:focus{outline:none}:focus-visible{outline:3px solid var(--ring-color);outline-offset:2px;border-radius:4px}[data-theme=dark] :focus-visible{outline-color:var(--color-text-strong)}.skip-link{position:absolute;top:-100px;left:16px;z-index:9999;padding:10px 16px;background:var(--color-primary);color:#fff;border-radius:var(--radius-md);font-size:14px;font-weight:500;transition:top .2s ease}.skip-link:focus,.skip-link:focus-visible{top:16px;color:#fff;outline:3px solid var(--color-accent);outline-offset:2px}.card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6) var(--space-6);box-shadow:var(--shadow-card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:background .2s ease,border-color .2s ease,transform .2s ease}.card.interactive{cursor:pointer}.card.interactive:hover{background:var(--color-card-hover);border-color:var(--color-border-strong)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:0 18px;background:var(--color-primary);color:#fff;border:1px solid transparent;border-radius:var(--radius-md);font-size:14px;font-weight:500;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .18s ease,transform .18s ease,opacity .18s ease}[data-theme=dark] .btn{background:#fff;color:#0a0a0b}[data-theme=dark] .btn:hover:not(:disabled){background:#e5e5e5;color:#0a0a0b}.btn:hover:not(:disabled){background:var(--color-primary-hover);transform:translateY(-1px)}[data-theme=dark] .btn-ghost{background:transparent;color:#fff;border-color:#e4e4e74d}[data-theme=dark] .btn-ghost:hover:not(:disabled){background:#ffffff14;color:#fff}.btn:active:not(:disabled){transform:translateY(0)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--color-text-strong);border-color:var(--color-border-strong)}.btn-ghost:hover:not(:disabled){background:var(--color-card-hover);color:var(--color-text-strong)}.btn-danger{background:var(--color-danger);color:#fff}.btn-sm{min-height:32px;padding:0 12px;font-size:13px}.btn-icon{min-height:40px;min-width:40px;padding:0;border-radius:var(--radius-md);background:transparent;color:var(--color-text-soft);border:1px solid transparent}.btn-icon:hover:not(:disabled){background:var(--color-card-hover);color:var(--color-text-strong)}[data-theme=dark] .btn-icon{color:#fff}[data-theme=dark] .btn-icon:hover:not(:disabled){background:#ffffff1a;color:#fff}.btn-link{background:transparent;color:var(--color-text-strong);border:1px solid var(--color-border-strong);min-height:36px;padding:0 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var(--color-border-strong);border-radius:999px;font-size:12px;color:var(--color-text-soft);margin-right:6px;transition:all .18s ease}.tag:hover{background:var(--color-card-hover);color:var(--color-text-strong);border-color:var(--color-border-strong)}.fade-enter-active,.fade-leave-active{transition:opacity .25s ease}.fade-enter-from,.fade-leave-to{opacity:0}.skeleton{background:linear-gradient(90deg,var(--color-card) 0%,var(--color-card-hover) 50%,var(--color-card) 100%);background-size:200% 100%;animation:skeleton-shimmer 1.4s ease-in-out infinite;border-radius:6px}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.toast-stack{position:fixed;top:80px;left:50%;transform:translate(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{pointer-events:auto;min-width:240px;max-width:90vw;padding:12px 18px;background:var(--color-card);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-elevated);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:14px;color:var(--color-text-strong);display:flex;align-items:center;gap:10px;animation:toast-in .22s ease}.toast.success{border-left:3px solid var(--color-success)}.toast.error{border-left:3px solid var(--color-danger)}.toast.warning{border-left:3px solid var(--color-warning)}.toast.info{border-left:3px solid var(--color-info)}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media (max-width: 768px){.card{padding:20px 16px;border-radius:var(--radius-lg)}.btn{min-height:44px}}