:root{--bg: #f1f5f9;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #eff6ff;--danger: #dc2626;--danger-soft: #fef2f2;--success: #059669;--success-soft: #ecfdf5;--radius: 12px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}input,button{font-size:14px}.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#1e3a8a,#2563eb);padding:24px}.login-card{background:var(--surface);border-radius:16px;box-shadow:0 20px 40px #0003;width:100%;max-width:400px;padding:40px 36px}.login-brand{text-align:center;margin-bottom:28px}.login-logo-img{width:100%;max-width:240px;height:auto;display:block;margin:0 auto 14px}.login-sub{margin:0;font-size:13px;color:var(--muted)}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;gap:20px;position:sticky;top:0;z-index:10}.topbar .brand{display:flex;align-items:center;gap:12px}.brand-logo{height:30px;width:auto;display:block}.brand-sep{width:1px;height:24px;background:var(--border)}.brand-name{font-weight:700;color:var(--muted);letter-spacing:.04em;font-size:15px}.tabs{display:flex;gap:4px;margin-left:12px}.tab{border:none;background:transparent;color:var(--muted);padding:8px 16px;border-radius:8px;font-weight:600}.tab.active{background:var(--primary-soft);color:var(--primary)}.tab:hover:not(.active){background:var(--bg)}.topbar .spacer{flex:1}.user-chip{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:10px}.content{max-width:1080px;width:100%;margin:0 auto;padding:28px 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-head{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px}.card-head h2{margin:0;font-size:16px}.card-head p{margin:2px 0 0;font-size:13px;color:var(--muted)}.card-body{padding:22px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#334155}.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}textarea.input{font-family:inherit;resize:vertical;min-height:64px}.row{display:flex;gap:12px;flex-wrap:wrap}.row>*{flex:1;min-width:140px}.btn{border:none;border-radius:9px;padding:10px 18px;font-weight:600;background:var(--primary);color:#fff;transition:background .15s,opacity .15s}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.block{width:100%}.btn.ghost{background:transparent;color:var(--muted)}.btn.ghost:hover{background:var(--bg)}.btn.danger{background:transparent;color:var(--danger);padding:6px 10px}.btn.danger:hover{background:var(--danger-soft)}.btn.sm{padding:7px 12px;font-size:13px}.btn.secondary{background:var(--primary-soft);color:var(--primary)}.btn.secondary:hover{background:#dbeafe}.table{width:100%;border-collapse:collapse}.table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);font-weight:600;padding:10px 12px;border-bottom:1px solid var(--border)}.table td{padding:12px;border-bottom:1px solid var(--border);font-size:14px}.table tr:last-child td{border-bottom:none}.table tr:hover td{background:#f8fafc}.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-soft);color:var(--primary)}.tag-sent{background:var(--success-soft);color:var(--success)}.tag-3dnet{background:#f3e8ff;color:#7e22ce}.row-sent td{background:#dcfce7}tr.study-sent td{background:#d1fae5}.table tr.study-sent:hover td{background:#bbf7d0}.empty{text-align:center;padding:48px 20px;color:var(--muted)}.empty .ico{font-size:40px;margin-bottom:8px}.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;display:inline-block;animation:spin .7s linear infinite;vertical-align:-3px}.spinner.dark{border-color:var(--border);border-top-color:var(--primary)}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:11px 14px;border-radius:9px;font-size:13px;margin-bottom:16px}.alert.error{background:var(--danger-soft);color:var(--danger)}.alert.ok{background:var(--success-soft);color:var(--success)}.toast{position:fixed;bottom:24px;right:24px;z-index:100;background:#0f172a;color:#fff;padding:13px 18px;border-radius:10px;box-shadow:0 10px 30px #00000040;font-size:14px;display:flex;align-items:center;gap:10px;max-width:380px;animation:slideup .2s ease}.toast.ok{background:#065f46}.toast.error{background:#991b1b}@keyframes slideup{0%{transform:translateY(12px);opacity:0}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;display:grid;place-items:center;z-index:50;padding:20px}.modal{background:var(--surface);border-radius:14px;width:100%;max-width:460px;box-shadow:0 24px 48px #0000004d;overflow:hidden}.modal.wide{max-width:900px}.modal-head{padding:18px 22px;border-bottom:1px solid var(--border)}.modal-head h3{margin:0;font-size:16px}.modal-body{padding:22px}.modal-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}.seg{display:inline-flex;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:3px;gap:3px}.seg button{border:none;background:transparent;color:var(--muted);padding:7px 20px;border-radius:7px;font-weight:600;font-size:13px;cursor:pointer}.seg button.on{background:var(--surface);color:var(--primary);box-shadow:var(--shadow)}.muted{color:var(--muted)}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.nowrap{white-space:nowrap}