:root[data-theme=dark]{--loading-bg: #10131a;--loading-text: #a1a7b3;--loading-border: #313846;--loading-primary: #78a8ff;--loading-soft: #1b2b47;--loading-heading: #e5e7eb}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2000;display:grid;place-items:center;background:var(--loading-bg, #f6f7f9);color:var(--loading-text, #6b7280);font:14px/1.5 system-ui,PingFang SC,Microsoft YaHei,sans-serif}.loading-inline{display:grid;width:100%;min-height:clamp(280px,55vh,520px);place-items:center;color:var(--color-text-soft, #6b7280);font:14px/1.5 system-ui,PingFang SC,Microsoft YaHei,sans-serif}.loading-inline--compact{min-height:120px}.loading-indicator{display:flex;flex-direction:column;align-items:center;gap:8px;padding:24px;text-align:center}.loading-indicator p{margin:0;max-width:320px}.loading-indicator .loading-title{margin-top:14px;color:var(--loading-heading, #1f2937);font-size:16px;font-weight:600}.loading-indicator .loading-hint{font-size:13px}.loading-spinner{position:relative;display:grid;place-items:center;box-sizing:border-box;width:80px;height:80px;flex:none}.loading-spinner:before{position:absolute;top:0;right:0;bottom:0;left:0;border:2px solid var(--loading-border, #d9dee8);border-top-color:var(--loading-primary, #2563eb);border-right-color:var(--loading-primary, #2563eb);border-radius:50%;content:"";animation:loading-spin 1.8s linear infinite}.loading-spinner:after{position:absolute;top:8px;right:8px;bottom:8px;left:8px;border-radius:50%;background:var(--loading-soft, #e8f0ff);content:"";animation:loading-breathe 2.4s ease-in-out infinite}.loading-book{position:relative;z-index:1;width:34px;height:26px;color:var(--loading-primary, #2563eb);animation:loading-book-float 2.4s ease-in-out infinite}.loading-book:before,.loading-book:after{position:absolute;box-sizing:border-box;top:0;width:18px;height:26px;border:2px solid currentColor;content:""}.loading-book:before{left:0;border-radius:5px 1px 1px 3px;transform:skewY(7deg)}.loading-book:after{right:0;border-radius:1px 5px 3px 1px;transform:skewY(-7deg)}.loading-dots{display:inline-flex;width:24px;gap:3px;margin-left:4px;vertical-align:middle}.loading-dots i{width:3px;height:3px;border-radius:50%;background:currentColor;animation:loading-dot 1.4s ease-in-out infinite}.loading-dots i:nth-child(2){animation-delay:.18s}.loading-dots i:nth-child(3){animation-delay:.36s}.loading-indicator--progress{gap:16px}.loading-progress{width:min(320px,70vw);flex:none}.loading-progress__track{height:4px;overflow:hidden;border-radius:999px;background:var(--loading-border, #d9dee8)}.loading-progress__bar{width:40%;height:100%;border-radius:999px;background:var(--loading-primary, #2563eb);animation:loading-progress 1.4s ease-in-out infinite}.loading-inline--compact .loading-progress{width:min(240px,60vw)}.loading-screen[aria-busy=false] .loading-spinner,.loading-screen[aria-busy=false] .loading-hint{display:none}#boot-retry{color:var(--color-primary, #2563eb);text-decoration:none}#boot-retry[hidden]{display:none}@keyframes loading-spin{to{transform:rotate(360deg)}}@keyframes loading-breathe{50%{opacity:.55;transform:scale(.92)}}@keyframes loading-book-float{50%{transform:translateY(-2px)}}@keyframes loading-dot{0%,80%,to{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}@keyframes loading-progress{0%{transform:translate(-250%) scaleX(.55)}50%{transform:translate(0) scaleX(1)}to{transform:translate(250%) scaleX(.55)}}.sidebar__state--loading{display:flex;align-items:center;gap:8px}.sidebar__loading-dot{width:8px;height:8px;flex:none;border-radius:50%;background:var(--loading-primary, #2563eb);animation:loading-breathe 1.4s ease-in-out infinite}@media (prefers-reduced-motion: reduce){.loading-spinner:before,.loading-spinner:after,.loading-book,.loading-dots i,.loading-progress__bar,.sidebar__loading-dot{animation:none}}