:root{--bg:#eceae4;--surface:#fff;--surface-muted:#f8f7f4;--border:#d8d4cb;--border-strong:#b8b0a4;--text:#2a2622;--text-muted:#6a645c;--accent:#8c3a32;--accent-hover:#742f28;--success-bg:#edf5ef;--success-text:#2d5a3d;--success-border:#b8d4c0;--error-bg:#faf0ee;--error-text:#8c3a32;--error-border:#e0b8b2;--shadow:0 1px 2px #2a26220f, 0 8px 24px #2a26220f;--radius:10px;--font-body:"BIZ UDPGothic", "Hiragino Sans", "Yu Gothic UI", sans-serif;--font-heading:"Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;font-family:var(--font-body);color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;font-size:15px;line-height:1.65}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}.layout{min-height:100vh;padding:48px 20px 64px}.page{max-width:720px;margin:0 auto}.header{margin-bottom:28px}.headerLabel{color:var(--accent);margin:0 0 6px;font-size:13px;font-weight:700}h1{font-family:var(--font-heading);margin:0 0 12px;font-size:26px;font-weight:500;line-height:1.45}h2{margin:0 0 4px;font-size:16px;font-weight:700}.headerLead{max-width:560px;color:var(--text-muted);margin:0}.card,.noteCard,.requirementsCard{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}.card{padding:28px}.cardHeader{margin-bottom:20px}.cardHeader p{color:var(--text-muted);margin:0;font-size:14px}.uploadGrid{grid-template-columns:minmax(0,1fr);gap:16px;max-width:520px;display:grid}.uploadBox{border:1px dashed var(--border-strong);background:var(--surface-muted);cursor:pointer;border-radius:8px;gap:8px;min-height:168px;padding:20px;transition:border-color .15s,background-color .15s;display:grid}.uploadBox:hover{border-color:var(--accent);background:#fff}.uploadBoxSelected{border-style:solid;border-color:var(--accent);background:#fff}.uploadBox input{display:none}.uploadIcon{border:1.5px solid var(--border-strong);background:linear-gradient(var(--border) 0 0) 8px 12px / 16px 1.5px no-repeat, linear-gradient(var(--border) 0 0) 8px 18px / 12px 1.5px no-repeat, linear-gradient(var(--border) 0 0) 8px 24px / 14px 1.5px no-repeat, var(--surface);border-radius:3px;width:32px;height:40px}.uploadBoxSelected .uploadIcon{border-color:var(--accent);background:linear-gradient(var(--accent) 0 0) 8px 12px / 16px 1.5px no-repeat, linear-gradient(var(--accent) 0 0) 8px 18px / 12px 1.5px no-repeat, linear-gradient(var(--accent) 0 0) 8px 24px / 14px 1.5px no-repeat, #fff}.uploadTitle{font-size:15px;font-weight:700}.uploadDescription{color:var(--text-muted);font-size:13px}.uploadAction{border:1px solid var(--border);background:var(--surface);color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;border-radius:6px;align-self:end;margin-top:auto;padding:8px 12px;font-size:13px;overflow:hidden}.uploadBoxSelected .uploadAction{border-color:var(--accent);color:var(--accent);font-weight:700}.uploadHint{color:var(--text-muted);margin-top:-2px;font-size:12px}.actions{margin-top:24px}.submitButton{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;width:100%;padding:14px 20px;font-size:15px;font-weight:700;transition:background-color .15s}.submitButton:hover:not(:disabled){background:var(--accent-hover)}.submitButton:disabled{cursor:not-allowed;opacity:.45}.feedback{border:1px solid;border-radius:8px;margin:16px 0 0;padding:12px 14px;font-size:14px}.message{border-color:var(--success-border);background:var(--success-bg);color:var(--success-text)}.error{border-color:var(--error-border);background:var(--error-bg);color:var(--error-text)}.feedback.error p{margin:0 0 8px;line-height:1.55}.feedback.error p:last-child{margin-bottom:0}.errorHint{border-top:1px solid var(--error-border);margin-top:4px;padding-top:8px;font-weight:600}.noteCard{background:var(--surface-muted);margin-top:20px;padding:20px 24px}.noteCard p{color:var(--text-muted);margin:0;font-size:14px}.noteCard a{color:var(--accent);font-weight:600}.noteCard a:hover{color:var(--accent-hover)}.requirementsCard{border-color:var(--accent);background:#fdf8f6;border-left-width:4px;margin-bottom:20px;padding:0;overflow:hidden}.requirementsToggle{display:block}.requirementsSummary{cursor:pointer;justify-content:space-between;align-items:center;gap:16px;padding:16px 20px;list-style:none;display:flex}.requirementsSummary::-webkit-details-marker{display:none}.requirementsSummaryMain{gap:4px;display:grid}.requirementsSummaryTitle{color:var(--accent);font-size:16px;font-weight:700}.requirementsSummaryHint{color:var(--text-muted);font-size:13px}.requirementsSummaryAction{border:1px solid var(--accent);background:var(--surface);color:var(--accent);border-radius:6px;flex-shrink:0;padding:6px 12px;font-size:13px;font-weight:700}.requirementsSummaryAction:after{content:"確認する"}.requirementsToggle[open] .requirementsSummaryAction{color:var(--text-muted);border-color:var(--border)}.requirementsToggle[open] .requirementsSummaryAction:after{content:"閉じる"}.requirementsContent{border-top:1px solid var(--error-border);padding:0 20px 20px}.requirementsIntro{border:1px solid var(--error-border);background:var(--error-bg);color:var(--error-text);border-radius:8px;margin:16px 0;padding:10px 12px;font-size:14px;font-weight:700}.requirementsGrid{grid-template-columns:1fr;gap:16px;display:grid}.requirementPanel{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:16px}.requirementPanel h3{border-bottom:1px solid var(--border);color:var(--text);margin:0 0 10px;padding-bottom:8px;font-size:14px;font-weight:700}.requirementBody{color:var(--text-muted);font-size:13px}.requirementBody p{margin:0 0 10px}.requirementBody p:last-child,.requirementBody ul{margin-bottom:0}.requirementBody ul{margin:0;padding-left:1.2em}.requirementBody li+li{margin-top:4px}.requirementBody code{font-family:Consolas,BIZ UDPGothic,monospace;font-size:12px}.requirementColumns{border:1px solid var(--border);background:var(--surface-muted);border-radius:6px;padding:8px 10px;line-height:1.5}@media (width<=640px){.layout{padding-top:32px}.card{padding:20px}.uploadGrid{grid-template-columns:1fr}.requirementsCard{padding:0}.requirementsSummary{flex-direction:column;align-items:flex-start;padding:16px}}