.itn-app{--itn-blue:#1268d8;--itn-navy:#15385b;--itn-bg:#f4f8fc;--itn-text:#1e293b;max-width:980px;margin:24px auto;background:#fff;color:var(--itn-text);border:1px solid #e0e8f0;border-radius:22px;overflow:hidden;box-shadow:0 12px 40px rgba(17,54,91,.10);font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif}.itn-app *{box-sizing:border-box}.itn-header{display:flex;align-items:center;gap:12px;padding:18px 20px;background:linear-gradient(120deg,#0c57b7,#188be7);color:white}.itn-brand-mark{width:44px;height:44px;display:grid;place-items:center;border:2px solid #fff;border-radius:14px;font-size:25px;font-weight:800}.itn-header strong,.itn-header small{display:block}.itn-header strong{font-size:18px}.itn-header small{font-size:10px;letter-spacing:2px;opacity:.8;margin-top:2px}.itn-tabs{display:flex;gap:6px;padding:10px;background:#edf4fb}.itn-tabs button{flex:1;border:0;border-radius:12px;padding:12px 8px;background:transparent;color:#476078;font-weight:700;cursor:pointer}.itn-tabs button.active{background:#fff;color:var(--itn-blue);box-shadow:0 2px 8px #163d6215}.itn-panel{display:none;padding:16px}.itn-panel.active{display:block}.itn-intro{padding:10px 4px 18px}.itn-eyebrow{font-size:10px;letter-spacing:2px;color:var(--itn-blue);font-weight:800}.itn-intro h2{font-size:clamp(21px,4vw,29px);line-height:1.35;margin:7px 0;color:var(--itn-navy)}.itn-intro p{margin:0;color:#64748b;font-size:14px}#itn-map{height:360px;border-radius:18px;z-index:1;background:#e7eef5}.itn-map-secondary{height:280px;margin-top:18px;border-radius:16px;overflow:hidden}.itn-section-title{font-size:17px;font-weight:800;margin:22px 0 12px}.itn-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.itn-card{border:1px solid #e2eaf2;border-radius:16px;overflow:hidden;background:#fff;min-width:0}.itn-card-image{height:130px;background:linear-gradient(135deg,#dceeff,#b6d6ee);background-size:cover;background-position:center}.itn-card-body{padding:13px}.itn-card h3{font-size:16px;line-height:1.4;margin:0 0 6px}.itn-card p{font-size:12px;color:#64748b;line-height:1.65;margin:0 0 10px}.itn-pill{display:inline-block;background:#e8f2ff;color:#145bb5;border-radius:30px;padding:4px 8px;font-size:11px;font-weight:700;margin-bottom:8px}.itn-btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:10px 12px;background:var(--itn-blue);color:#fff!important;font-weight:700;font-size:13px;text-decoration:none;cursor:pointer}.itn-btn.secondary{background:#edf5ff;color:#1558a5!important}.itn-course{padding:16px;border:1px solid #e1eaf3;border-radius:16px;margin-bottom:12px}.itn-course h3{margin:0 0 6px;font-size:17px}.itn-course p{font-size:13px;color:#64748b}.itn-course .itn-btn{margin-top:5px}.itn-rally{border-radius:18px;padding:18px;background:linear-gradient(135deg,#e9f4ff,#f6fbff);border:1px solid #d9eaff;margin-bottom:12px}.itn-rally h3{margin:0 0 7px}.itn-rally p{font-size:13px;color:#52677d}.itn-stamp-result{margin-top:14px}.itn-stamp-row{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.itn-stamp{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;border:2px dashed #a7b8c8;color:#a7b8c8;font-size:23px;background:white}.itn-stamp.got{border:2px solid #e34f62;color:#e34f62;background:#fff1f3}.itn-modal{position:fixed;inset:0;z-index:99999;background:#10243db3;display:flex;align-items:center;justify-content:center;padding:18px}.itn-modal[hidden]{display:none}.itn-modal-card{position:relative;background:white;width:min(560px,100%);max-height:90vh;overflow:auto;border-radius:20px;padding:22px}.itn-close{position:absolute;right:12px;top:10px;border:0;background:#edf2f7;border-radius:50%;width:34px;height:34px;font-size:24px;cursor:pointer}.itn-detail-image{width:100%;height:200px;object-fit:cover;border-radius:12px;margin:12px 0}.itn-detail-content{line-height:1.8}.itn-detail-content h2{padding-right:30px}.itn-detail-content iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:12px}.itn-footer{text-align:center;padding:18px;background:#f5f9fd;color:#73859a;font-size:12px}@media(max-width:600px){.itn-app{margin:0;border-radius:0;border-left:0;border-right:0}.itn-panel{padding:12px}.itn-cards{grid-template-columns:1fr}.itn-card{display:grid;grid-template-columns:112px 1fr}.itn-card-image{height:100%;min-height:140px}.itn-card-body{padding:12px}.itn-card h3{font-size:15px}#itn-map{height:340px}.itn-intro h2{font-size:23px}}
.itn-gallery{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;margin:12px 0 4px;border-radius:12px}.itn-gallery img{flex:0 0 100%;width:100%;height:220px;object-fit:cover;scroll-snap-align:center;border-radius:12px}.itn-gallery-hint{font-size:11px;color:#73859a;margin:0 0 8px}