:root{--bg: #f0f9ff;--card: #ffffff;--line: #cbd5e1;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--electric: #38bdf8;--electric-yellow: #fde047;--electric-yellow-dark: #facc15;--ok: #16a34a;--ng: #dc2626;--warn: #f59e0b;--accent: #7c3aed;--energy: #ea580c}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100vh}body{font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic UI,Meiryo,system-ui,sans-serif;background:radial-gradient(ellipse at 20% 0%,rgba(56,189,248,.15),transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(253,224,71,.1),transparent 50%),linear-gradient(180deg,#ecfeff,#e0f2fe 60%,#f0f9ff);background-attachment:fixed;color:var(--text);font-size:14px;line-height:1.55}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(56,189,248,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.08) 1px,transparent 1px);background-size:28px 28px;pointer-events:none;z-index:0}.app{max-width:1280px;margin:0 auto;padding:12px 16px 40px;position:relative;z-index:1}.header{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:12px;background:radial-gradient(circle at 15% 30%,rgba(253,224,71,.22),transparent 40%),radial-gradient(circle at 85% 70%,rgba(56,189,248,.28),transparent 45%),linear-gradient(135deg,#0c4a6e,#1e3a8a 60%,#312e81);color:#fff;padding:18px 22px;border-radius:16px;margin-bottom:14px;box-shadow:0 4px 22px #1e3a8a40,inset 0 1px #ffffff26,inset 0 -2px #00000026;overflow:hidden;border:1px solid rgba(56,189,248,.4)}.header:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(56,189,248,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.12) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;opacity:.8}.header h1{margin:0;font-size:22px;font-weight:800;letter-spacing:.02em;text-shadow:0 0 10px rgba(56,189,248,.6);position:relative;z-index:3}.header h1 .bolt{display:inline-block;color:var(--electric-yellow);text-shadow:0 0 8px var(--electric-yellow),0 0 16px rgba(253,224,71,.6);animation:glow 1.6s ease-in-out infinite}.header p{margin:4px 0 0;font-size:12.5px;opacity:.92;position:relative;z-index:3}.header .title{flex:1 1 auto;position:relative;z-index:3}.modes{display:flex;gap:6px;flex-wrap:wrap;position:relative;z-index:3}.modes button{background:#ffffff1f;color:#fff;border:1px solid rgba(56,189,248,.5);border-radius:999px;padding:8px 16px;cursor:pointer;font-weight:700;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:all .2s}.modes button:hover{background:#fde0472e;border-color:var(--electric-yellow)}.modes button.active{background:var(--electric-yellow);color:#1e3a8a;border-color:var(--electric-yellow);box-shadow:0 0 12px #fde04799}.spark{position:absolute;font-size:18px;opacity:0;pointer-events:none;z-index:2;filter:drop-shadow(0 0 6px var(--electric-yellow))}.spark.s1{top:10%;left:30%;animation:sparkBlink 4.2s ease-in-out infinite}.spark.s2{top:60%;left:55%;animation:sparkBlink 5.6s ease-in-out infinite -1.8s}.spark.s3{top:20%;left:75%;animation:sparkBlink 4.8s ease-in-out infinite -3s}.circuit-line{position:absolute;left:0;right:0;bottom:8px;height:2px;background:linear-gradient(90deg,transparent,rgba(56,189,248,.5),transparent);z-index:2}.circuit-line .electron{position:absolute;top:-3px;width:8px;height:8px;border-radius:50%;background:var(--electric-yellow);box-shadow:0 0 8px var(--electric-yellow),0 0 16px #fde047b3;animation:flowRight 3.2s linear infinite}.circuit-line .electron.e2{animation-delay:-1s;background:#67e8f9;box-shadow:0 0 8px #67e8f9,0 0 16px #67e8f999}.circuit-line .electron.e3{animation-delay:-2s}@keyframes flowRight{0%{left:-10px}to{left:100%}}@keyframes sparkBlink{0%,88%,to{opacity:0;transform:scale(.6) rotate(-5deg)}90%{opacity:1;transform:scale(1.2) rotate(0)}94%{opacity:.8;transform:scale(1) rotate(5deg)}}@keyframes glow{0%,to{text-shadow:0 0 8px var(--electric-yellow),0 0 16px rgba(253,224,71,.5)}50%{text-shadow:0 0 14px var(--electric-yellow),0 0 28px rgba(253,224,71,.9)}}.tabs{display:flex;gap:6px;margin:0 0 10px;flex-wrap:wrap}.tabs button{background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:7px 14px;cursor:pointer;color:#334155;font-weight:700;font-size:13px;transition:all .15s}.tabs button:hover{border-color:var(--electric);color:var(--primary-dark)}.tabs button.active{background:linear-gradient(135deg,var(--primary),#0ea5e9);color:#fff;border-color:var(--primary);box-shadow:0 2px 8px #2563eb4d}.grid-3{display:grid;gap:14px;grid-template-columns:280px 1fr 340px}.right-col{display:flex;flex-direction:column;gap:14px}@media (max-width: 1000px){.grid-3{grid-template-columns:1fr}}.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:0 2px 8px #0f172a0f;position:relative}.panel:before{content:"";position:absolute;top:10px;left:-1px;width:4px;height:24px;background:linear-gradient(180deg,var(--electric-yellow),var(--electric));border-radius:0 4px 4px 0;box-shadow:0 0 6px #38bdf866}.panel.center{display:flex;flex-direction:column;align-items:stretch;background:linear-gradient(180deg,#fff,#f0f9ff)}.panel h2{margin:0 0 10px;font-size:15px;color:var(--primary-dark);border-bottom:2px solid var(--electric);padding-bottom:6px;font-weight:700}.panel h3{font-size:13px;margin:14px 0 6px;color:#334155;font-weight:700}.field{margin-bottom:10px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:700}.field input[type=number],.field select{width:100%;padding:6px 8px;border:1.5px solid var(--line);border-radius:8px;font-size:13px;background:#fff;transition:border-color .15s}.field input[type=number]:focus,.field select:focus{outline:none;border-color:var(--electric);box-shadow:0 0 0 3px #38bdf833}.field input[type=range]{width:100%;accent-color:var(--primary)}.field .row{display:flex;gap:6px}.field .row>*{flex:1}.field .checks{display:flex;flex-direction:column;gap:4px}.field .checks label{font-size:13px;color:var(--text);font-weight:500}.seg{display:flex;gap:4px;flex-wrap:wrap}.seg button{flex:1 1 auto;padding:7px 10px;border:1.5px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;color:#334155;font-size:13px;font-weight:700;transition:all .15s}.seg button:hover:not(:disabled){border-color:var(--electric)}.seg button.active{background:linear-gradient(135deg,var(--primary),#0ea5e9);color:#fff;border-color:var(--primary);box-shadow:0 2px 6px #2563eb4d}.seg button:disabled{opacity:.4;cursor:not-allowed}.examples{display:flex;flex-wrap:wrap;gap:6px}.examples button{font-size:11px;padding:6px 10px;border:1.5px solid var(--electric);background:#f0f9ff;border-radius:999px;cursor:pointer;color:var(--primary-dark);font-weight:600}.examples button:hover{background:var(--electric-yellow);border-color:var(--electric-yellow-dark);color:#422006}.field .hint{font-size:11px;color:var(--muted);margin:2px 0 6px;font-weight:500}.appliances{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.appliance-btn{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:8px 10px;border-radius:10px;cursor:pointer;border:1.5px solid #fde047;background:linear-gradient(135deg,#fffbeb,#fef3c7);text-align:left;font-family:inherit;transition:all .15s}.appliance-btn:hover{background:linear-gradient(135deg,#fef3c7,#fde68a);border-color:#f59e0b;transform:translateY(-1px);box-shadow:0 3px 8px #f59e0b40}.appliance-btn .app-icon{font-size:18px}.appliance-btn .app-name{font-size:12px;font-weight:700;color:#92400e}.appliance-btn .app-spec{font-size:10px;color:#78350f;font-weight:600;font-family:ui-monospace,monospace}button.primary{background:linear-gradient(135deg,var(--primary),#0ea5e9);color:#fff;border:none;border-radius:10px;padding:10px 20px;cursor:pointer;font-weight:700;font-size:14px;box-shadow:0 3px 10px #2563eb59;transition:all .15s}button.primary:hover{transform:translateY(-1px);box-shadow:0 5px 14px #2563eb80}button.primary:disabled{background:#94a3b8;cursor:not-allowed;box-shadow:none;transform:none}.result-table{width:100%;border-collapse:collapse;font-size:12px;margin-bottom:8px}.result-table th,.result-table td{border:1px solid var(--line);padding:5px 8px;text-align:left}.result-table th{background:linear-gradient(180deg,#f0f9ff,#e0f2fe);color:#0c4a6e;font-weight:700}.explain{padding-left:18px;font-size:12.5px;color:#334155}.explain li{margin:3px 0}.note{font-size:12px;color:#075985;background:#ecfeff;border-left:3px solid var(--electric);border-radius:6px;padding:8px 12px}.note.warn{background:#fef3c7;color:#92400e;border-color:var(--warn)}.note.small{font-size:11px}.qtext{font-size:15px;font-weight:700;color:#0f172a;margin:0 0 8px;padding:8px 12px;background:linear-gradient(90deg,#fef9c3,transparent);border-left:4px solid var(--electric-yellow-dark);border-radius:4px}.quiz{display:grid;gap:14px;grid-template-columns:280px 1fr}@media (max-width: 900px){.quiz{grid-template-columns:1fr}}.answer-row{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:12px}.answer-row input[type=number]{width:130px;padding:8px 10px;border:1.5px solid var(--line);border-radius:8px;font-size:15px;font-weight:700}.answer-row input[type=number]:focus{outline:none;border-color:var(--electric);box-shadow:0 0 0 3px #38bdf833}.answer-row>span{font-weight:700;color:var(--primary-dark)}.answer-row button{padding:8px 14px;border-radius:8px;border:1.5px solid var(--line);background:#fff;color:var(--text);cursor:pointer;font-weight:700}.answer-row button.primary{border:none}.hint{margin-top:8px;padding:10px 12px;background:linear-gradient(90deg,#fef9c3,#fef3c7);border-left:4px solid var(--warn);border-radius:6px;font-size:13px}.judge{margin-top:10px;padding:12px;border-radius:10px;font-weight:700;font-size:15px;text-align:center}.judge.ok{background:linear-gradient(135deg,#dcfce7,#bbf7d0);color:#14532d;border:2px solid var(--ok)}.judge.ng{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#7f1d1d;border:2px solid var(--ng)}.exp{white-space:pre-wrap;background:#f8fafc;padding:10px;border-radius:8px;font-size:12.5px;margin-top:10px;font-family:inherit;border:1px solid var(--line)}.print-sheet{background:#fff;padding:18px;border-radius:12px;border:1px solid var(--line);margin-top:14px}.ps-header{border-bottom:2px solid #000;padding-bottom:6px;margin-bottom:10px}.ps-header h1{font-size:18px;margin:0 0 4px}.ps-meta{display:flex;gap:16px;font-size:13px}.ps-list{padding-left:0;list-style:none}.ps-item{border:1px solid #cbd5e1;border-radius:10px;padding:10px;margin-bottom:12px;page-break-inside:avoid}.ps-q{font-weight:600;margin-bottom:6px;font-size:13px}.ps-num{color:var(--primary-dark);margin-right:6px}.ps-ans{margin-top:6px;font-size:13px}.ps-blank{display:inline-block;border-bottom:1px solid #000;min-width:100px}.ps-answers{page-break-before:always;break-before:page;margin-top:20px}.ps-answers ol{padding-left:20px}.ps-exp{white-space:pre-wrap;font-size:11px;background:#f8fafc;padding:6px 8px;border-radius:6px;font-family:inherit}.print-mode{display:grid;gap:12px}.site-footer{margin-top:32px;padding:22px 24px;background:linear-gradient(135deg,#f8fafc,#ecfeff);border:1px solid var(--line);border-top:3px solid var(--electric);border-radius:14px;color:#334155;font-size:13px;box-shadow:0 2px 10px #0f172a0d}.site-footer h4{margin:0 0 12px;font-size:14px;color:var(--primary-dark);font-weight:700;border-bottom:1px solid var(--line);padding-bottom:6px}.site-footer ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:4px 16px}.site-footer li{margin-bottom:3px}.site-footer a{color:var(--primary);text-decoration:none;font-weight:500}.site-footer a:hover{text-decoration:underline;color:var(--primary-dark)}.site-footer .copy{margin-top:16px;text-align:center;font-size:11px;color:#94a3b8}@media print{body{background:#fff}body:before{display:none}.app{max-width:100%;padding:0}.no-print{display:none!important}.print-sheet{border:none;box-shadow:none;padding:0}@page{size:A4 portrait;margin:12mm}.panel{box-shadow:none}.panel:before{display:none}}