:root{--navy:#113a6f;--navy-dark:#0b2a52;--accent:#238dca;--accent-soft:#e8f3fb;--ink:#02030b;--text:#1f2d3d;--muted:#5b6b80;--subtle:#8a97a8;--border:#dbe3ec;--border-strong:#c3cfdc;--surface:#fff;--background:#f3f6fa;--success:#1a8a4a;--success-soft:#e6f5ec;--danger:#c62f2f;--danger-soft:#fdecec;--warning:#9a6200;--warning-soft:#fff5e0;--radius:8px;--radius-sm:6px;--shadow:0 1px 2px #113a6f0f, 0 2px 8px #113a6f0f;--focus:0 0 0 3px #238dca40;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box;margin:0;padding:0}html{height:100%}html,body{max-width:100vw;overflow-x:hidden}body{min-height:100%;color:var(--text);background:var(--background);font-family:var(--font-noto), "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, 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14px;font-size:14px;font-weight:500;display:inline-flex}.app-nav-link:hover{color:var(--navy);background:var(--accent-soft);text-decoration:none}.app-nav-link.is-active{color:var(--navy);border-bottom-color:var(--navy);font-weight:700}.app-nav-sep{background:var(--border);flex-shrink:0;width:1px;margin:10px 8px}.app-main{max-width:1200px;margin:0 auto;padding:28px 24px 64px}.app-main.is-narrow{max-width:800px}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;display:flex}.page-title{color:var(--ink);font-size:24px;font-weight:700;line-height:1.4}.page-desc{color:var(--muted);margin-top:4px;font-size:14px}.breadcrumb{color:var(--muted);flex-wrap:wrap;gap:6px;margin-bottom:8px;font-size:13px;display:flex}.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--accent)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:24px;padding:20px 24px}.card-title{color:var(--ink);align-items:center;gap:8px;margin-bottom:16px;font-size:16px;font-weight:700;display:flex}.card-title:before{content:"";background:var(--navy);border-radius:2px;width:4px;height:18px}.card-title .count{color:var(--muted);font-size:13px;font-weight:500}.card.is-flush{padding:0;overflow:hidden}.card.is-flush .card-title{padding:20px 24px 0}.form-row{flex-wrap:wrap;align-items:flex-end;gap:16px;display:flex}.field{flex-direction:column;gap:6px;min-width:0;display:flex}.field.grow{flex:220px}.field-label{color:var(--text);font-size:13px;font-weight:700}.field-label .req{color:var(--danger);margin-left:4px;font-weight:500}.field-hint{color:var(--muted);font-size:12px}.form-row .field{position:relative}.form-row .field-hint{white-space:nowrap;margin-top:3px;line-height:1.4;position:absolute;top:100%;left:0}.form-row:has(.field-hint){row-gap:30px;padding-bottom:18px}.input,.select,.textarea{font:inherit;color:var(--ink);border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:#fff;width:100%;min-height:38px;padding:8px 12px;font-size:14px;transition:border-color .15s,box-shadow .15s}.input:hover,.select:hover,.textarea:hover{border-color:var(--subtle)}.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);box-shadow:var(--focus);outline:none}.input::placeholder,.textarea::placeholder{color:var(--subtle)}.input.is-compact,.select.is-compact{min-height:34px;padding:5px 10px}.textarea{resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;line-height:1.6}.w-num{width:90px}.w-sm{width:140px}.w-md{width:220px}.w-lg{width:320px}.form-note{color:var(--muted);margin-top:12px;font-size:12px}.btn{font:inherit;border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;min-height:38px;padding:7px 18px;font-size:14px;font-weight:700;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:hover{text-decoration:none}.btn:focus-visible{box-shadow:var(--focus);outline:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover:not(:disabled){background:var(--navy-dark)}.btn-secondary{color:var(--navy);border-color:var(--border-strong);background:#fff}.btn-secondary:hover:not(:disabled){border-color:var(--navy);background:var(--accent-soft)}.btn-ghost{color:var(--muted);background:0 0;border-color:#0000}.btn-ghost:hover:not(:disabled){color:var(--navy);background:var(--accent-soft)}.btn-danger-ghost{color:var(--danger);background:0 0;border-color:#0000}.btn-danger-ghost:hover:not(:disabled){background:var(--danger-soft)}.btn-sm{min-height:32px;padding:4px 12px;font-size:13px}.btn-lg{min-height:46px;padding:10px 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solid #fff;border-radius:999px;padding:4px 14px;font-size:13px;font-weight:700}.app-help:hover{background:var(--accent-soft)}.app-help:focus-visible{outline:none;box-shadow:0 0 0 3px #ffffff80}.app-help-wrap{position:relative}.tour-menu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);z-index:20;flex-direction:column;min-width:200px;padding:6px;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 8px 24px #02030b2e}.tour-menu-item{font:inherit;text-align:left;color:var(--text);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;background:0 0;border:none;padding:9px 12px;font-size:14px;font-weight:500}.tour-menu-item:hover,.tour-menu-item:focus-visible{background:var(--accent-soft);color:var(--navy);outline:none}.tour-root{z-index:1000;position:fixed;inset:0}.tour-backdrop{position:fixed;inset:0}.tour-backdrop.is-dim{background:#02030b8c}.tour-spotlight{border-radius:var(--radius);outline:3px solid var(--accent);outline-offset:0;pointer-events:none;transition:top .25s,left .25s,width .25s,height .25s;position:fixed;box-shadow:0 0 0 9999px #02030b8c}.tour-card{background:var(--surface);border-top:4px solid var(--navy);border-radius:12px;max-height:calc(100vh - 32px);padding:18px 20px 16px;position:fixed;overflow-y:auto;box-shadow:0 12px 40px #02030b4d}.tour-step{letter-spacing:.06em;color:var(--accent);font-size:11px;font-weight:700}.tour-title{color:var(--ink);margin:2px 0 8px;font-size:17px;font-weight:700;line-height:1.5}.tour-body{color:var(--text);white-space:pre-line;font-size:14px;line-height:1.8}.tour-dots{gap:6px;margin:14px 0 12px;display:flex}.tour-dot{background:var(--border-strong);border-radius:50%;width:7px;height:7px}.tour-dot.is-active{background:var(--navy);border-radius:4px;width:18px}.tour-actions{justify-content:space-between;align-items:center;gap:8px;display:flex}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mb-16{margin-bottom:16px}.text-muted{color:var(--muted)}.text-sm{font-size:13px}.list-plain{flex-direction:column;gap:4px;list-style:none;display:flex}.list-bullet{color:var(--muted);flex-direction:column;gap:4px;padding-left:20px;font-size:13px;display:flex}@media (max-width:800px){.learn-layout{grid-template-columns:minmax(0,1fr)}.learn-layout .lesson-sidebar{order:2}}@media (max-width:640px){.app-header-inner,.app-nav-inner{padding:0 16px}.app-main{padding:20px 16px 48px}.app-brand-sub,.app-user-name{display:none}.card{padding:16px}.card.is-flush .card-title{padding:16px 16px 0}.page-title{font-size:20px}.form-row>.field,.form-row>.field.grow{flex:100%}.form-row>.btn,.w-md,.w-lg{width:100%}.table th,.table td{white-space:nowrap}.table .w-md{width:220px}.table .w-lg{width:320px}.auth-card{padding:28px 20px 24px}}