:root{--color-bg:#f7f7f5;--color-surface:#fff;--color-border:#e5e5e0;--color-text:#1f1f1d;--color-text-muted:#6b6b63;--color-primary:#2563eb;--color-primary-contrast:#fff;--color-danger:#dc2626;--color-tag-bg:#eef2ff;--color-tag-text:#3730a3;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}a{color:inherit}.container{max-width:880px;margin:0 auto;padding:16px}.nav{display:flex;gap:4px;padding:12px 16px;border-bottom:1px solid var(--color-border);background:var(--color-surface);position:-webkit-sticky;position:sticky;top:0;z-index:10}.nav a{padding:8px 12px;border-radius:8px;text-decoration:none;font-size:14px;color:var(--color-text-muted)}.nav a.active{background:var(--color-tag-bg);color:var(--color-primary);font-weight:600}.nav-badge{display:inline-block;margin-left:6px;min-width:18px;padding:0 5px;border-radius:999px;background:var(--color-danger);color:#fff;font-size:11px;font-weight:600;line-height:18px;text-align:center}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:16px;margin-bottom:16px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:12px;gap:12px}.stat-tile{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:16px}.stat-tile .value{font-size:28px;font-weight:700}.stat-tile .label{font-size:13px;color:var(--color-text-muted);margin-top:4px}.tag{display:inline-block;background:var(--color-tag-bg);color:var(--color-tag-text);border-radius:999px;padding:2px 10px;font-size:12px;margin:0 6px 6px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer;background:var(--color-primary);color:var(--color-primary-contrast);text-decoration:none}.btn.secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn.danger{background:var(--color-danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.capture-actions{display:flex;flex-wrap:wrap;gap:10px}.paste-hint{margin:12px 0 0;font-size:13px}.paste-hint kbd{display:inline-block;padding:1px 6px;border:solid var(--color-border);border-width:1px 1px 2px;border-radius:4px;background:var(--color-surface);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;line-height:1.5}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--color-text-muted)}.field input[type=text],.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:8px;font-size:14px;font-family:inherit;background:var(--color-surface);color:var(--color-text)}.field textarea{min-height:80px;resize:vertical}.checkbox-group{display:flex;flex-wrap:wrap;gap:10px}.checkbox-group label{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:400;color:var(--color-text);border:1px solid var(--color-border);border-radius:8px;padding:6px 12px;cursor:pointer}.checkbox-group input{margin:0}.question-item{display:block;padding:14px 0;border-bottom:1px solid var(--color-border);text-decoration:none;color:inherit}.question-item:last-child{border-bottom:none}.question-item .excerpt{font-size:14px;color:var(--color-text-muted);margin:4px 0 8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.muted{font-size:13px}.hint-box{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;margin-bottom:16px}.preview-img{max-width:100%;border-radius:8px;border:1px solid var(--color-border);margin-bottom:12px}.preview-wrap{margin-bottom:16px}.preview-wrap .preview-img{margin-bottom:8px}.btn-sm{padding:6px 12px;font-size:13px;font-weight:500}.kp-chapter{margin-bottom:20px}.kp-chapter h3{margin-bottom:8px}.kp-point-row{padding:6px 0;border-bottom:1px dashed var(--color-border)}.chat-log{display:flex;flex-direction:column;gap:10px;max-height:360px;overflow-y:auto;margin-bottom:12px}.chat-bubble{max-width:80%;padding:8px 12px;border-radius:10px;font-size:14px;line-height:1.5}.chat-bubble.user{align-self:flex-end;background:var(--color-tag-bg);color:var(--color-tag-text)}.chat-bubble.assistant{align-self:flex-start;background:var(--color-surface);border:1px solid var(--color-border)}.chat-input-row{display:flex;gap:8px}.chat-input-row input{flex:1 1;padding:10px 12px;border:1px solid var(--color-border);border-radius:8px;font-size:14px;font-family:inherit;background:var(--color-surface);color:var(--color-text)}.attribution-finish-row{display:flex;align-items:center;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid var(--color-border);font-size:13px}.conclusion-box{margin-top:14px;padding:14px 16px;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface)}.conclusion-box h4{margin:0 0 8px;font-size:14px}.conclusion-box .reasoning{margin:0 0 12px;font-size:14px;line-height:1.7;color:var(--color-text)}.conclusion-actions{display:flex;gap:10px;margin-top:14px}.self-mark-actions{display:flex;flex-wrap:wrap;gap:10px}.variant-card{margin-bottom:0}.badge{display:inline-block;border-radius:999px;padding:2px 10px;font-size:12px}.badge-ok{background:#ecfdf5;color:#065f46}.badge-warn{font-weight:700}.badge-warn,.verification-warning{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}.verification-warning{border-radius:8px;padding:10px 14px;font-size:13px;margin-bottom:16px}.muted{color:var(--color-text-muted);font-size:14px}.hint-box{background:var(--color-tag-bg);border:1px solid #c7d2fe;color:var(--color-tag-text);border-radius:8px;padding:10px 14px;font-size:13px;margin-top:12px}.kp-chapter h3{margin:0 0 12px;font-size:15px}.kp-point-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 10px;border-radius:8px;font-size:14px}.kp-point-row+.kp-point-row{margin-top:2px}.kp-point-row .kp-name{display:flex;align-items:baseline;gap:8px;min-width:0}.kp-counts{color:var(--color-text-muted);font-size:12px;white-space:nowrap}.kp-point-row.heat-weak{background:#fef2f2;box-shadow:inset 3px 0 0 #dc2626}.kp-point-row.heat-partial{background:#fffbeb;box-shadow:inset 3px 0 0 #d97706}.kp-point-row.heat-mastered{background:#ecfdf5;box-shadow:inset 3px 0 0 #059669}.kp-point-row.heat-none{opacity:.55}.heat-label{font-size:12px;font-weight:600;white-space:nowrap}.heat-label.weak{color:#991b1b}.heat-label.partial{color:#92400e}.heat-label.mastered{color:#065f46}.heat-label.none{color:var(--color-text-muted);font-weight:400}.heat-swatch{display:inline-block;width:11px;height:11px;border-radius:3px;margin:0 5px 0 12px;vertical-align:middle}.heat-swatch.weak{background:#dc2626}.heat-swatch.partial{background:#d97706}.heat-swatch.mastered{background:#059669}.heat-swatch.none{background:#d4d4d0}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 0;font-size:14px;border-bottom:1px solid var(--color-border)}.setting-row:last-child{border-bottom:none}.setting-value{font-size:13px;color:var(--color-text);font-weight:600;text-align:right}.login-wrap{min-height:70vh;display:flex;align-items:center;justify-content:center;padding:24px 16px}.login-card{width:100%;max-width:340px;margin-bottom:0}.login-card h1{font-size:22px;margin-bottom:4px}.login-input{width:100%;padding:11px 12px;margin-bottom:12px;border:1px solid var(--color-border);border-radius:8px;font-size:15px;font-family:inherit;background:var(--color-surface);color:var(--color-text)}.login-input:focus{outline:2px solid var(--color-primary);outline-offset:-1px}