/* =====================================================================
   nm-letter.css — 日本橋マーケティング通信（/letter/）
   ===================================================================== */
.nm-lgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.nm-lcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--nm-line);border-radius:var(--nm-radius);overflow:hidden;transition:transform .15s,box-shadow .15s,border-color .15s}
.nm-lcard:hover{transform:translateY(-3px);border-color:oklch(0.62 0.16 250 / .4);box-shadow:0 18px 36px -24px rgba(22,32,46,.45)}
.nm-lcard__thumb{aspect-ratio:16/9;background:var(--nm-bg-sky);overflow:hidden}
.nm-lcard__thumb img{width:100%;height:100%;object-fit:cover}
.nm-lcard__thumb--none{display:grid;place-items:center;background:repeating-linear-gradient(135deg,var(--nm-bg-sky) 0 12px,#fff 12px 24px)}
.nm-lcard__thumb--none span{font-family:var(--nm-num);font-weight:700;font-size:13px;letter-spacing:.2em;color:var(--nm-blue)}
.nm-lcard__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.nm-lcard__meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--nm-ink-3)}
.nm-lcard__cat{font-weight:700;color:var(--nm-blue-deep);background:var(--nm-bg-sky);padding:2px 10px;border-radius:999px}
.nm-lcard h2{font-size:17px;line-height:1.55}
.nm-lcard p{font-size:13px;color:var(--nm-ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nm-lcard__more{margin-top:auto;font-size:13px;font-weight:700;color:var(--nm-blue-deep)}
.nm-lcard__more::after{content:" →";font-family:var(--nm-num)}

.nm-lcats{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:40px}
.nm-lcats a{font-size:13px;font-weight:700;padding:7px 16px;border-radius:999px;border:1.5px solid var(--nm-line);background:#fff;color:var(--nm-ink-2)}
.nm-lcats a:hover,.nm-lcats a.is-current{border-color:var(--nm-blue);background:var(--nm-bg-sky);color:var(--nm-blue-deep)}

.nm-pager{margin-top:56px}
.nm-pager ul{display:flex;justify-content:center;gap:8px;list-style:none;margin:0;padding:0}
.nm-pager a,.nm-pager span{display:grid;place-items:center;min-width:44px;height:44px;padding:0 12px;border-radius:999px;border:1.5px solid var(--nm-line);background:#fff;font-family:var(--nm-num);font-weight:600}
.nm-pager a:hover{border-color:var(--nm-blue)}
.nm-pager .current{background:var(--nm-blue);border-color:var(--nm-blue);color:#fff}
.nm-pager .dots{border:0;background:none}

.nm-lempty{text-align:center;padding:48px 0;color:var(--nm-ink-2)}
.nm-lempty b{display:block;font-family:var(--nm-head);font-size:20px;color:var(--nm-ink);margin-bottom:8px}

/* single */
.nm-lhead{padding:32px 0 48px;background:linear-gradient(180deg,var(--nm-bg-sky) 0%,#fff 100%)}
.nm-lhead__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--nm-ink-3);margin-bottom:14px}
.nm-lhead h1{font-size:clamp(26px,3.2vw,38px);max-width:900px}
.nm-lwrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;padding-bottom:96px}
.nm-leye{border-radius:var(--nm-radius);overflow:hidden;margin-bottom:36px}
.nm-leye img{width:100%;height:auto}
.nm-lcontent{font-size:16px;line-height:1.95;color:var(--nm-ink)}
.nm-lcontent > * + *{margin-top:1.3em}
.nm-lcontent h2{font-size:24px;margin-top:2.4em !important;padding:14px 20px;background:var(--nm-bg-soft);border-radius:10px;border-left:0;position:relative}
.nm-lcontent h2::before{content:"" !important;position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--nm-blue)}
.nm-lcontent h3{font-size:20px;margin-top:2em !important;padding-bottom:8px;border-bottom:2px solid var(--nm-line)}
.nm-lcontent h4{font-size:17px;margin-top:1.6em !important;color:var(--nm-blue-deep)}
.nm-lcontent ul{list-style:disc;padding-left:1.4em}
.nm-lcontent ol{list-style:decimal;padding-left:1.4em}
.nm-lcontent li + li{margin-top:.4em}
.nm-lcontent a{color:var(--nm-blue-deep);text-decoration:underline}
.nm-lcontent blockquote{margin-left:0;margin-right:0;padding:18px 22px;background:var(--nm-bg-sky);border-radius:10px;color:var(--nm-ink-2)}
.nm-lcontent img{max-width:100%;height:auto;border-radius:8px}
.nm-lcontent table{width:100%;border-collapse:collapse;font-size:14px}
.nm-lcontent th,.nm-lcontent td{border:1px solid var(--nm-line);padding:10px 14px;text-align:left}
.nm-lcontent th{background:var(--nm-bg-soft)}
.nm-lcontent .wp-block-image figcaption{font-size:12px;color:var(--nm-ink-3);text-align:center}

.nm-lnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:56px}
.nm-lnav a{display:block;background:#fff;border:1px solid var(--nm-line);border-radius:12px;padding:18px 20px}
.nm-lnav a:hover{border-color:var(--nm-blue)}
.nm-lnav small{display:block;font-size:12px;color:var(--nm-ink-3);margin-bottom:4px}
.nm-lnav b{font-family:var(--nm-head);font-size:15px;line-height:1.5}
.nm-lnav__next{text-align:right}
.nm-lback{margin-top:28px;text-align:center}

.nm-lside{position:sticky;top:calc(var(--nm-hd-h) + var(--nm-admin,0px) + 20px);display:grid;gap:24px}
.nm-lside__cta{background:var(--nm-ink);color:#fff;border-radius:18px;padding:28px 24px;text-align:center}
.nm-lside__cta .nm-label{color:var(--nm-yellow);margin-bottom:8px}
.nm-lside__cta b{display:block;font-family:var(--nm-head);font-size:19px;line-height:1.5;margin-bottom:8px}
.nm-lside__cta p{font-size:13px;opacity:.8;margin-bottom:18px !important}
.nm-lside__cta .nm-btn{width:100%;padding:14px 18px;font-size:15px}
.nm-lside__cta .nm-lside__sub{display:block;margin-top:14px;font-size:13px;color:#fff !important;opacity:.85;text-decoration:underline}
.nm-lside__block{background:var(--nm-bg-soft);border-radius:18px;padding:22px}
.nm-lside__ttl{font-family:var(--nm-head);font-weight:700;font-size:15px;margin-bottom:12px !important}
.nm-lrecent{display:grid;gap:4px}
.nm-lrecent a{display:block;padding:10px 0;border-bottom:1px solid var(--nm-line);font-size:14px;line-height:1.55}
.nm-lrecent li:last-child a{border-bottom:0}
.nm-lrecent a:hover{color:var(--nm-blue-deep)}
.nm-lrecent time{display:block;font-size:11px;color:var(--nm-ink-3);font-family:var(--nm-num)}

@media (max-width:960px){
  .nm-lgrid{grid-template-columns:repeat(2,1fr)}
  .nm-lwrap{grid-template-columns:1fr;gap:48px}
  .nm-lside{position:static}
}
@media (max-width:560px){
  .nm-lgrid,.nm-lnav{grid-template-columns:1fr}
  .nm-lcontent h2{font-size:20px}
}