:root{color:#17323b;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--ink:#17323b;--ink-soft:#38535b;--muted:#5c6f74;--panel:#ffffffe0;--line:#17323b1f;--accent-strong:#0f766e;--shadow:0 18px 52px #363f3514;background:radial-gradient(circle at 0 0,#0f766e24,#0000 28rem),linear-gradient(#f6f2e9 0%,#f5efe3 45%,#f4f1eb 100%);font-family:MiSans,HarmonyOS Sans SC,Source Han Sans SC,Microsoft YaHei UI,sans-serif;font-weight:400;line-height:1.55}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0}button,input,textarea,select{font:inherit}input,select{border:1px solid var(--line);width:100%;color:var(--ink);background:#fffc;border-radius:14px;outline:none;padding:.95rem 1rem}input:focus,select:focus{border-color:#0f766e66;box-shadow:0 0 0 4px #0f766e14}button{cursor:pointer}code{background:#ffffffb8;border:1px solid #17323b14;border-radius:.4rem;padding:.15rem .4rem;font-family:Cascadia Code,JetBrains Mono,monospace;font-size:.92em}a{color:inherit}#root{min-height:100vh}h1,h2,h3{letter-spacing:-.03em;color:var(--ink);font-family:Source Han Serif SC,Noto Serif SC,Songti SC,serif}.page{width:min(1440px,100% - 28px);min-height:100vh;margin:0 auto;padding:28px 0 40px;position:relative}.loading-page{place-items:center;display:grid}.boot-card,.auth-hero,.auth-card,.topbar,.library-panel,.player-panel,.empty-card,.modal-card,.feedback,.tips-card,.list-card{border:1px solid var(--line);background:linear-gradient(180deg, #fffffff2, #f7f1e7e6), var(--panel);box-shadow:var(--shadow);border-radius:26px}.boot-card,.empty-card{max-width:40rem;padding:2rem}.halo{filter:blur(90px);opacity:.38;pointer-events:none;z-index:-1;border-radius:999px;width:26rem;height:26rem;position:fixed}.halo-a{background:radial-gradient(circle,#145f8259,#0000 70%);top:-8rem;right:-8rem}.halo-b{background:radial-gradient(circle,#0f766e38,#0000 70%);top:22rem;left:-10rem}.feedback{z-index:10;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;padding:14px 18px;display:flex;position:sticky;top:16px}.feedback.success{border-color:#0f766e40}.feedback.error{border-color:#b4231840}.feedback.info{border-color:#155e7538}.feedback button{appearance:none;color:var(--ink-soft);cursor:pointer;background:0 0;border:0}.auth-shell{grid-template-columns:minmax(0,1.25fr) minmax(24rem,.95fr);align-items:stretch;gap:24px;display:grid}.auth-hero,.auth-card,.topbar,.library-panel,.player-panel,.empty-card,.modal-card{padding:24px}.auth-hero{align-content:center;gap:18px;min-height:38rem;display:grid}.auth-hero h1,.topbar h1,.boot-card h1{margin:0;font-size:clamp(2.2rem,4vw,3.6rem);line-height:1.05}.auth-hero p,.empty-card p,.panel-subtitle,.state-text,.small-tip,.entry-main span,.player-meta,.feature-list,.number-list{color:var(--muted)}.eyebrow{color:var(--accent-strong);text-transform:uppercase;letter-spacing:.18em;margin:0;font-size:.72rem;font-weight:700}.feature-list,.number-list{gap:.7rem;margin:0;padding-left:1.15rem;display:grid}.feature-list.compact{gap:.5rem}.auth-card{align-self:center}.tab-row{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px;display:grid}.tab,.primary-button,.ghost-button,.crumb,.entry-button,.search-input{font:inherit}.tab,.primary-button,.ghost-button,.crumb{appearance:none;border:1px solid #0000;border-radius:999px;padding:.88rem 1.25rem;transition:transform .16s,box-shadow .16s,border-color .16s,background .16s}.tab,.ghost-button,.crumb{color:var(--ink);background:#ffffffc7;border-color:#17323b14}.tab.active,.crumb.active{color:var(--accent-strong);background:#0f766e1f;border-color:#0f766e2e}.primary-button{color:#f8f7f3;background:linear-gradient(135deg,#0f766e,#155e75);border:0;box-shadow:0 14px 34px #0f766e2e}.tab:hover,.primary-button:hover,.ghost-button:hover,.crumb:hover,.entry-button:hover{transform:translateY(-1px)}.primary-button:disabled,.ghost-button:disabled{opacity:.55;pointer-events:none}.stack-form{gap:14px;display:grid}.stack-form label{gap:8px;display:grid}.stack-form label span,.panel-title{color:var(--ink);font-weight:700}.toggle-row{border:1px solid var(--line);background:#0f766e0d;border-radius:18px;align-items:center;gap:12px;padding:14px 16px;display:flex!important}.toggle-row input{width:auto;margin:0}.topbar{justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;display:flex}.topbar-actions,.inline-actions,.modal-actions{flex-wrap:wrap;gap:12px;display:flex}.workspace{grid-template-columns:minmax(22rem,.92fr) minmax(0,1.18fr);gap:24px;display:grid}.panel-head{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px;display:flex}.panel-title{margin:0 0 4px;font-size:1rem}.panel-subtitle{margin:0;font-size:.94rem}.pill{white-space:nowrap;color:var(--ink-soft);background:#17323b14;border-radius:999px;align-self:flex-start;padding:.5rem .8rem;font-size:.82rem;font-weight:700}.pill.accent{color:var(--accent-strong);background:#0f766e1f}.toolbar-row{gap:14px;margin-bottom:16px;display:grid}.breadcrumbs{flex-wrap:wrap;gap:10px;display:flex}.search-input{flex:16rem}.list-card{min-height:30rem;padding:10px}.entry-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.entry-button{text-align:left;background:#ffffffc2;border:1px solid #0000;border-radius:18px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;width:100%;padding:14px;display:grid}.entry-button.active{background:#0f766e14;border-color:#0f766e38}.entry-icon{min-width:3.4rem;color:var(--ink-soft);letter-spacing:.06em;text-transform:uppercase;background:#17323b14;border-radius:14px;justify-content:center;align-items:center;padding:.55rem .7rem;font-size:.76rem;font-weight:700;display:inline-flex}.entry-button.folder .entry-icon{color:var(--accent-strong);background:#0f766e1a}.entry-main{gap:2px;min-width:0;display:grid}.entry-main strong,.entry-main span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.entry-main strong{color:var(--ink)}.entry-tag{color:var(--ink-soft);background:#17323b14;border-radius:999px;padding:.45rem .75rem;font-size:.78rem;font-weight:700}.entry-tag.playable{color:var(--accent-strong);background:#0f766e1f}.player-meta{gap:8px;margin-top:14px;display:grid}.tips-card{margin-top:18px;padding:18px}.video-shell{background:radial-gradient(circle at top,#214b68b3,#0000 55%),linear-gradient(#0c141cf5,#14222ef5);border:1px solid #ffffff0f;border-radius:26px;overflow:hidden}.video-shell video,.video-placeholder{aspect-ratio:16/9;place-items:center;width:100%;display:grid}.video-placeholder{color:#f8f7f3e0}.state-text{margin:0}.state-text.error{color:#b42318}.empty-shell{place-items:center;min-height:65vh;display:grid}.modal-backdrop{z-index:30;background:#0a121b66;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.modal-card{width:min(920px,100%);max-height:min(88vh,920px);overflow:auto}.tutorial-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.tutorial-card{border:1px solid var(--line);background:#ffffffc7;border-radius:20px;padding:18px}.small-tip{margin:0;font-size:.92rem}.admin-panel{gap:14px;display:grid}.admin-table{border:1px solid var(--line);border-radius:20px;overflow:hidden}.admin-row{background:#ffffffc2;grid-template-columns:minmax(0,1.3fr) .55fr .7fr .9fr;gap:14px;padding:14px 16px;display:grid}.admin-row+.admin-row{border-top:1px solid var(--line)}.admin-head{color:var(--ink);background:#0f766e14;font-weight:700}.admin-row span{display:grid}.admin-row small{color:var(--muted)}.share-modal{width:min(1100px,100%)}.share-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.share-pane{gap:14px;display:grid}.share-source-list{max-height:24rem;overflow:auto}.share-source-card{border:1px solid var(--line);background:#ffffffc2;border-radius:18px;gap:12px;padding:14px;display:grid}.quick-import-card,.sync-token-card{gap:12px;display:grid}.mode-toggle{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}textarea{border:1px solid var(--line);width:100%;color:var(--ink);resize:vertical;background:#fffc;border-radius:14px;outline:none;padding:.95rem 1rem}textarea:focus{border-color:#0f766e66;box-shadow:0 0 0 4px #0f766e14}@media (width<=1100px){.auth-shell,.workspace,.tutorial-grid,.share-grid{grid-template-columns:1fr}}@media (width<=760px){.page{width:min(100% - 18px,100%);padding-top:16px}.topbar,.panel-head,.inline-actions,.modal-actions{flex-direction:column;align-items:stretch}.topbar-actions{width:100%}.primary-button,.ghost-button,.tab{justify-content:center;width:100%}.admin-row{grid-template-columns:1fr}}
