:root{color-scheme:light;--shell-bg:#fff;--shell-surface:#fafafa;--shell-text:#171717;--shell-muted:#666;--shell-line:rgba(23,23,23,.12);--shell-focus:#2563eb;--shell-shadow:0 0 0 1px var(--shell-line),0 4px 16px rgba(0,0,0,.04)}
.modern-shell-menu{display:none;min-height:2.5rem;border:0;border-radius:8px;padding:.5rem .75rem;background:var(--shell-bg);color:var(--shell-text);box-shadow:var(--shell-shadow);font:600 .9rem/1.2 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;cursor:pointer}
@media(max-width:600px){.modern-shell-menu{display:inline-flex;align-items:center}.modern-shell-mobile-nav:not(.modern-shell-nav-open){display:none}.modern-shell-mobile-nav.modern-shell-nav-open{display:flex}}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--shell-bg:#111;--shell-surface:#171717;--shell-text:#f5f5f5;--shell-muted:#aaa;--shell-line:rgba(255,255,255,.14);--shell-focus:#60a5fa;--shell-shadow:0 0 0 1px var(--shell-line)}}
:root[data-theme=dark]{color-scheme:dark;--shell-bg:#111;--shell-surface:#171717;--shell-text:#f5f5f5;--shell-muted:#aaa;--shell-line:rgba(255,255,255,.14);--shell-focus:#60a5fa;--shell-shadow:0 0 0 1px var(--shell-line)}
.modern-skip-link{position:fixed;left:1rem;top:-5rem;z-index:2147483647;padding:.6rem .9rem;border-radius:8px;background:var(--shell-text);color:var(--shell-bg)}.modern-skip-link:focus{top:1rem}.modern-shell :focus-visible,.modern-shell-button:focus-visible{outline:3px solid var(--shell-focus);outline-offset:3px}.modern-shell-tools{position:fixed;right:1rem;bottom:1rem;z-index:9998;display:flex;gap:.5rem}.modern-shell-button{min-height:2.75rem;border:0;border-radius:8px;padding:.65rem .85rem;background:var(--shell-text);color:var(--shell-bg);box-shadow:var(--shell-shadow);font:600 .9rem/1.2 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;cursor:pointer}.modern-shell-button.secondary{background:var(--shell-bg);color:var(--shell-text)}.modern-shell-dialog{width:min(680px,calc(100% - 2rem));max-height:min(720px,calc(100% - 2rem));border:0;border-radius:12px;padding:0;background:var(--shell-bg);color:var(--shell-text);box-shadow:0 0 0 1px var(--shell-line),0 24px 80px rgba(0,0,0,.24)}.modern-shell-dialog::backdrop{background:rgba(0,0,0,.48);backdrop-filter:blur(3px)}.modern-shell{display:flex;max-height:inherit;flex-direction:column;padding:1rem;font:400 1rem/1.5 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}.modern-shell-head{display:flex;gap:.75rem}.modern-shell-search{flex:1;min-width:0;min-height:2.75rem;border:1px solid var(--shell-line);border-radius:8px;padding:.6rem .75rem;background:var(--shell-bg);color:var(--shell-text);font:inherit}.modern-shell-close{border:0;border-radius:8px;padding:.5rem .75rem;background:var(--shell-surface);color:var(--shell-text);cursor:pointer}.modern-shell-filters{display:flex;gap:.5rem;overflow:auto;padding:.75rem 0}.modern-shell-filter{white-space:nowrap;border:0;border-radius:7px;padding:.4rem .7rem;background:var(--shell-surface);color:var(--shell-muted);box-shadow:0 0 0 1px var(--shell-line);cursor:pointer}.modern-shell-filter[aria-pressed=true]{background:var(--shell-text);color:var(--shell-bg)}.modern-shell-list{display:grid;gap:.5rem;overflow:auto;margin:0;padding:.25rem;list-style:none}.modern-shell-item{display:grid;grid-template-columns:1fr auto;gap:.5rem;align-items:center;border-radius:8px;background:var(--shell-surface);box-shadow:0 0 0 1px var(--shell-line)}.modern-shell-item>a{display:block;min-width:0;padding:.75rem;color:var(--shell-text);text-decoration:none}.modern-shell-item small{display:block;overflow:hidden;color:var(--shell-muted);text-overflow:ellipsis;white-space:nowrap}.modern-shell-favorite{margin-right:.5rem;border:0;border-radius:6px;padding:.4rem .55rem;background:var(--shell-bg);color:var(--shell-text);cursor:pointer}.modern-shell-empty{padding:3rem 1rem;text-align:center;color:var(--shell-muted)}@media(max-width:600px){.modern-shell-tools{right:.75rem;bottom:.75rem}.modern-shell-button span{display:none}.modern-shell-dialog{width:calc(100% - 1rem);max-height:calc(100% - 1rem)}}@media(prefers-reduced-motion:reduce){.modern-shell-dialog{scroll-behavior:auto}}