:root{--bg:#0f1224;--panel:#161a2f;--accent:#7c4dff;--accent2:#5b7cfa;--text:#e5e7eb;--muted:#9aa0aa;--border:#243055}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:radial-gradient(1200px 600px at 20% 0%,#1b1f39 0%,#0f1224 60%,#0b0f1f 100%);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"PingFang SC","Microsoft YaHei","Segoe UI Emoji",sans-serif}
.header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,rgba(124,77,255,.15),transparent)}
.brand{display:flex;align-items:center;gap:12px;font-weight:600}
.brand-badge{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;color:#fff}
.brand-title{font-size:18px}
.actions{display:flex;align-items:center;gap:10px}
.button{background:linear-gradient(135deg,rgba(124,77,255,.25),rgba(91,124,250,.25));border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:8px;cursor:pointer;transition:.2s}
.button:hover{border-color:var(--accent);box-shadow:0 0 0 1px rgba(124,77,255,.4)}
.container{max-width:1040px;margin:24px auto;padding:0 16px}
.panel{background:rgba(22,26,47,.9);backdrop-filter:saturate(140%) blur(6px);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.section-title{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;font-weight:600}
.section-title .dot{width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.content{padding:10px 10px 16px}
.list{display:flex;flex-direction:column;gap:10px}
details{background:rgba(20,24,44,.7);border:1px solid var(--border);border-radius:10px;transition:border-color .2s ease}
details[open]{border-color:#33406e}
summary{list-style:none;padding:12px 14px;display:flex;align-items:center;gap:10px;cursor:pointer;transition:background-color .2s ease}
summary::-webkit-details-marker{display:none}
summary:hover{background:rgba(124,77,255,.08)}
.summary-icon{width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;transition:transform .2s ease}
details[open] .summary-icon{transform:rotate(90deg)}
.summary-text{flex:1}
.group{padding:8px 12px 12px;border-top:1px dashed var(--border);display:flex;flex-direction:column;gap:6px;transition:height 220ms ease,opacity 200ms ease,transform 200ms ease}
.file{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;border:1px solid transparent;transition:.2s}
.file:hover{border-color:var(--accent);background:rgba(124,77,255,.08)}
.file .type{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;background:rgba(124,77,255,.2);color:#fff;font-size:12px}
.file .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .ops{display:flex;align-items:center;gap:8px}
.link{color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));border:0;padding:8px 10px;border-radius:8px;text-decoration:none;font-size:12px}
.empty{padding:18px;color:var(--muted)}
.footer{padding:20px 24px;color:var(--muted);text-align:center}