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li{position:relative;margin-bottom:6px;padding-left:12px;color:#475569;font-size:12px;line-height:1.6}.usecasedoc-help-list li:last-child{margin-bottom:0}.usecasedoc-help-list li::before{content:"•";position:absolute;left:0;top:0;color:#94a3b8}.usecasedoc-loading-message{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:9999;background:#fff;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.25);padding:30px 48px;min-width:300px}.usecasedoc-loading{display:flex;align-items:center;justify-content:center;padding:12px 0;color:#6b7280}.usecasedoc-spinner{width:30px;height:30px;margin-right:12px;border:3px solid #e5e7eb;border-top-color:#2563eb;border-radius:999px;animation:1s linear infinite usecasedoc-spin}.usecasedoc-loading-message{color:#111827}.usecasedoc-message{position:fixed;top:110px;right:20px;z-index:1000;min-width:300px;max-width:500px;border-radius:10px;box-shadow:0 10px 25px rgba(0,0,0,.15);animation:.25s ease-out usecasedoc-slide-in}.usecasedoc-message-content{display:flex;align-items:center;gap:12px;padding:14px 16px}.usecasedoc-message-icon{font-size:18px}.usecasedoc-message-text{flex:1;font-size:13px;font-weight:600}.usecasedoc-message-close{background:0 0;border:none;color:inherit;cursor:pointer;opacity:.8}.usecasedoc-message-success{background:#10b981;color:#fff}.usecasedoc-message-error{background:#ef4444;color:#fff}.usecasedoc-message-warning{background:#f59e0b;color:#fff}.usecasedoc-message-info{background:#3b82f6;color:#fff}@keyframes usecasedoc-spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}@keyframes usecasedoc-slide-in{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}@media (max-width:1440px){.usecasedoc-page .usecasedoc-workspace{grid-template-columns:120px 520px minmax(0,1fr) 200px}}@media (max-width:1200px){.usecasedoc-page .usecasedoc-workspace{grid-template-columns:220px minmax(0,1fr);grid-template-areas:"tools preview" "input preview" "settings settings"}.usecasedoc-preview-shell{min-height:420px}}@media (max-width:680px),(max-height:720px){.usecasedoc-preset-btn{flex-basis:100%}}