/* ============================================
   Promot Works - 展示会記事01 固有スタイル
   cases/exhibition-01/exhibition-01.css
   ============================================ */

/* PAGE HERO */
.page-hero { background: linear-gradient(135deg, #0F1E38 0%, #1B2A4A 100%); padding: 56px var(--gutter) 60px; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: url('/images/oyakuni_top.jpg') center / cover no-repeat; opacity: 0.07; }
.page-hero-inner { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
.page-hero .breadcrumb { padding: 0; margin-bottom: 18px; color: rgba(255,255,255,0.38); }
.page-hero .breadcrumb a { color: rgba(255,255,255,0.38); }
.page-hero .breadcrumb a:hover { color: rgba(255,255,255,0.7); }
.art-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.art-cat  { display: inline-block; background: rgba(26,111,232,0.4); color: #93C5FD; font-size: 11px; font-weight: 700; padding: 4px 12px; border-radius: 100px; letter-spacing: 0.05em; }
.art-tag  { font-size: 11px; color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.1); padding: 3px 10px; border-radius: 6px; }
.page-hero h1 { font-size: clamp(21px, 3vw, 36px); font-weight: 900; color: var(--white); line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 16px; }
.art-who { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.6); }
.art-who-icon { width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; font-size: 13px; }

/* MAIN */
.art-main { max-width: var(--max-width); margin: 0 auto; padding: 40px var(--gutter) 80px; }

/* Q BOX */
.q-box { background: linear-gradient(135deg, #F0F7FF, #EAF2FF); border: 1px solid var(--blue-md); border-radius: var(--radius); padding: 26px 30px; margin-bottom: 24px; }
.q-box-label { font-size: 11px; font-weight: 700; color: var(--blue); letter-spacing: 0.1em; margin-bottom: 12px; }
.q-box ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.q-box li { font-size: 14px; color: var(--navy); padding-left: 22px; position: relative; line-height: 1.7; }
.q-box li::before { content: ''; position: absolute; left: 0; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue-md); border: 2px solid var(--blue); }
.q-box-note { margin-top: 14px; font-size: 13px; color: var(--gray-600); padding-top: 12px; border-top: 1px solid var(--blue-md); }

/* CONTENT BLOCK */
.art-block { background: var(--white); border-radius: var(--radius); padding: 36px 40px; margin-bottom: 24px; box-shadow: var(--shadow); }
.art-block h2 { font-size: 18px; font-weight: 900; color: var(--navy); margin-bottom: 20px; padding-bottom: 14px; border-bottom: 2px solid var(--gray-100); display: flex; align-items: center; gap: 10px; }
.art-block h2 .h2-icon { font-size: 20px; }
.art-block h3 { font-size: 15px; font-weight: 700; color: var(--navy); margin: 24px 0 10px; display: flex; align-items: center; gap: 8px; }
.art-block h3::before { content: ''; width: 4px; height: 16px; background: var(--blue); border-radius: 2px; flex-shrink: 0; }
.art-block p { font-size: 14px; color: var(--gray-600); line-height: 1.9; margin-bottom: 14px; }
.art-block p:last-child { margin-bottom: 0; }
.point-box { background: var(--blue-lt); border-left: 4px solid var(--blue); border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 20px 0; font-size: 13.5px; color: var(--navy); font-weight: 500; line-height: 1.75; }

/* CAUSE CARDS */
.cause-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin: 20px 0; }
.cause-card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 10px; padding: 22px 20px; border-top: 3px solid #EF4444; }
.cause-num  { font-size: 10px; font-weight: 700; color: #EF4444; letter-spacing: 0.1em; margin-bottom: 10px; }
.cause-icon { font-size: 26px; margin-bottom: 8px; line-height: 1; }
.cause-title { font-size: 13.5px; font-weight: 700; color: var(--navy); margin-bottom: 10px; line-height: 1.4; }
.cause-card p { font-size: 13px; color: var(--gray-600); line-height: 1.75; margin: 0; }

/* BANT GRID */
.bant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.bant-item { background: var(--blue-lt); border: 1px solid var(--blue-md); border-radius: 10px; padding: 16px 18px; display: flex; align-items: center; gap: 16px; }
.bant-letter { font-family: 'DM Sans', sans-serif; font-size: 28px; font-weight: 700; color: var(--blue); line-height: 1; flex-shrink: 0; width: 36px; text-align: center; }
.bant-title { font-size: 13.5px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.bant-desc  { font-size: 12px; color: var(--gray-600); line-height: 1.5; }

/* FOLLOWUP GRID */
.followup-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }
.followup-box { border-radius: 10px; padding: 22px 22px; }
.fu-hot  { background: #FFF7ED; border: 1px solid #FED7AA; }
.fu-warm { background: var(--blue-lt); border: 1px solid var(--blue-md); }
.fu-label { font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.fu-hot  .fu-label { color: #EA580C; }
.fu-warm .fu-label { color: var(--blue); }
.fu-timing { font-size: 11px; color: var(--gray-400); margin-bottom: 14px; font-weight: 600; }
.followup-box ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.followup-box li { font-size: 13px; color: var(--gray-600); padding-left: 18px; position: relative; line-height: 1.6; }
.followup-box li::before { content: '✓'; position: absolute; left: 0; font-size: 11px; font-weight: 700; }
.fu-hot  li::before { color: #EA580C; }
.fu-warm li::before { color: var(--blue); }

/* MAIL ITEMS */
.mail-items { display: flex; flex-direction: column; gap: 12px; margin: 20px 0; }
.mail-item { display: flex; align-items: flex-start; gap: 18px; background: var(--gray-50); border-radius: 10px; padding: 18px 20px; }
.mail-num { font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 700; color: var(--white); background: var(--blue); width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.mail-title { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.mail-desc  { font-size: 13px; color: var(--gray-600); line-height: 1.75; }

/* PROCESS FLOW */
.process-flow { display: flex; align-items: stretch; gap: 0; margin: 20px 0; overflow-x: auto; padding-bottom: 4px; }
.pf-step { flex: 1; min-width: 100px; background: var(--blue-lt); border: 1px solid var(--blue-md); border-radius: 10px; padding: 16px 12px; display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.pf-arrow { display: flex; align-items: center; font-size: 18px; color: var(--gray-400); padding: 0 4px; flex-shrink: 0; }
.pf-icon { font-size: 22px; line-height: 1; }
.pf-name { font-size: 12px; font-weight: 700; color: var(--navy); }
.pf-desc { font-size: 10.5px; color: var(--gray-600); line-height: 1.5; }

/* ART CTA */
.art-cta { background: linear-gradient(135deg, #0F1E38, #1B2A4A); border-radius: var(--radius); padding: 40px; text-align: center; margin-top: 24px; }
.art-cta h3 { font-size: 18px; font-weight: 900; color: var(--white); margin-bottom: 10px; line-height: 1.4; }
.art-cta p  { font-size: 14px; color: rgba(255,255,255,0.58); margin-bottom: 24px; line-height: 1.75; }

/* レスポンシブ */
@media (max-width: 860px) {
  .cause-cards   { grid-template-columns: 1fr; }
  .bant-grid     { grid-template-columns: 1fr; }
  .followup-grid { grid-template-columns: 1fr; }
  .process-flow  { flex-direction: column; }
  .pf-arrow      { transform: rotate(90deg); align-self: center; }
  .art-block     { padding: 24px 20px; }
}