:root{--v24-bg:#f7f9fc;--v24-card:#ffffff;--v24-line:#d8e2f0;--v24-text:#0f172a;--v24-sub:#5b6b84;--v24-primary:#2563eb;--v24-primary-soft:#eaf2ff;--v24-shadow:0 12px 32px rgba(15,23,42,.06)}
body.wc-v24-admin,body.wc-v24-yamathon,.wc-event-shell{background:var(--v24-bg);color:var(--v24-text)}
.v24-panel,.v24-public-hero,.v24-info-card,.wc-event-console-wrap,.v24-console-card{background:var(--v24-card);border:1px solid var(--v24-line);border-radius:24px;box-shadow:var(--v24-shadow)}
#wc-v24-admin-tools,#wc-v24-event-panel{max-width:980px;margin:28px auto;padding:28px}
.v24-kicker{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--v24-primary);font-weight:800;margin-bottom:8px}
#wc-v24-admin-tools h2,#wc-v24-event-panel h2,.v24-public-hero h1,.wc-event-console-wrap h1{font-size:34px;line-height:1.2;margin:0 0 10px;font-weight:900;color:var(--v24-text)}
.v24-subtitle,.v24-lead,.wc-event-console-wrap .v24-subtitle{color:var(--v24-sub);font-size:16px;line-height:1.7;margin:0 0 18px}
.v24-tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px}
.v24-tool-card{appearance:none;border:1px solid var(--v24-line);background:#fff;border-radius:18px;padding:20px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:8px;transition:.15s ease}
.v24-tool-card:hover,.v24-tool-card[aria-pressed="true"]{border-color:#98b4f0;background:var(--v24-primary-soft);transform:translateY(-1px)}
.v24-tool-card strong{font-size:18px;color:var(--v24-text)}
.v24-tool-card span{color:var(--v24-sub);font-size:14px;line-height:1.6}
.v24-note,.v24-warning-box,.v24-connection{background:#f8fbff;border:1px solid #d7e6ff;color:#38517a;border-radius:16px;padding:14px 16px;line-height:1.7}
#wc-v24-event-frame{width:100%;min-height:620px;border:1px solid var(--v24-line);border-radius:20px;background:#fff;margin-top:18px}
.v24-public-main{max-width:1120px;margin:0 auto;padding:42px 20px 70px}
.v24-public-hero{padding:40px}
.v24-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px}
.v24-primary,.v24-secondary{display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:999px;font-weight:800;text-decoration:none}
.v24-primary{background:var(--v24-primary);color:#fff}.v24-secondary{background:#fff;border:1px solid var(--v24-line);color:var(--v24-text)}
.v24-info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:22px}
.v24-info-card{padding:24px}.v24-info-card h2{margin:0 0 10px;font-size:20px}.v24-info-card p{margin:0;color:var(--v24-sub);line-height:1.7}
.wc-event-shell{margin:0;font-family:Inter,"Noto Sans JP",sans-serif}.wc-event-console-wrap{max-width:980px;margin:20px auto;padding:28px}
.v24-segment{display:flex;gap:10px;margin:20px 0}.v24-segment button{appearance:none;border:1px solid var(--v24-line);background:#fff;color:var(--v24-text);border-radius:999px;padding:10px 16px;font-weight:800;cursor:pointer}.v24-segment button.is-active{background:var(--v24-primary);border-color:var(--v24-primary);color:#fff}
.v24-console-card{padding:24px;margin-top:12px}.v24-console-card h2{margin:0 0 10px;font-size:24px}.v24-console-card p{margin:0 0 14px;color:var(--v24-sub);line-height:1.7}
@media (max-width:900px){.v24-tool-grid,.v24-info-grid{grid-template-columns:1fr}#wc-v24-admin-tools,#wc-v24-event-panel,.wc-event-console-wrap{padding:22px}.v24-public-hero{padding:28px}#wc-v24-admin-tools h2,#wc-v24-event-panel h2,.v24-public-hero h1,.wc-event-console-wrap h1{font-size:28px}}