:root{--card:rgba(255,255,255,.94);--text:#081c33;--muted:#5d6f8c;--primary:#1478ff;--primary2:#743bff;--line:rgba(24,85,150,.13);--shadow:0 24px 70px rgba(24,70,140,.13);--green:#12b981;--red:#ef4444}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--text);background:radial-gradient(circle at 12% 5%,rgba(20,120,255,.16),transparent 30%),radial-gradient(circle at 86% 12%,rgba(116,59,255,.16),transparent 34%),linear-gradient(180deg,#f8fbff 0%,#eef5ff 46%,#f8fbff 100%)}a{text-decoration:none;color:inherit}button,input,select{font:inherit}.container{width:min(1320px,calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 8px 28px 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.sheet-preview-box th{background:#f8fbff;color:#102033;font-weight:950;position:sticky;top:0}
.file-note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.file-note{border:1px solid var(--line);background:#f8fbff;border-radius:13px;padding:10px;text-align:center}
.file-note strong{display:block;color:#102033;font-size:14px}
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.slide-num{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-size:13px;font-weight:950}
.slide-row strong{display:block;color:#102033;font-size:14px}
.slide-row span{display:block;color:#718098;font-size:12px;font-weight:800;margin-top:3px}