/* 電子還付システム */
.eref-content { --eref-surface: #f7f7f5; --eref-cream: #faf8f3; }
.eref-content > * + * { margin-top: 64px; }
.eref-content h2 { font-size: 32px; line-height: 1.5; letter-spacing: .01em; margin: 0 0 24px; }
.eref-content p { font-size: 18px; line-height: 1.9; margin: 0; color: #555b5b; }
.eref-content p + p { margin-top: 20px; }
.eref-integrations { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.eref-integration-card { padding: 36px; background: var(--eref-surface); border-radius: 12px; }
.eref-integration-card h2 { font-size: 26px; margin-top: 24px; }
.eref-icon { width: 56px; height: 56px; color: var(--brand); flex: none; }
.eref-security { padding: 40px; background: var(--eref-cream); border-radius: 12px; }
.eref-principles, .eref-partners, .eref-roles { list-style: none; padding: 0; margin: 0; }
.eref-principles { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-top: 32px; }
.eref-principles li { font-size: 18px; font-weight: 600; }
.eref-partners { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; padding: 28px; margin-top: 28px; background: var(--eref-surface); border-radius: 12px; text-align: center; }
.eref-partners strong { display: block; font-size: 20px; }
.eref-partners span { display: block; margin-top: 8px; font-size: 16px; color: #626868; }
.eref-support-body { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 48px; align-items: center; }
.eref-support figure { margin: 0; }
.eref-support img { width: 100%; height: auto; display: block; }
.eref-data-map { background: var(--eref-surface); border-radius: 12px; padding: 36px 28px 28px; margin-top: 28px; }
.eref-roles { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 24px; }
.eref-roles li { position: relative; display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; font-size: 16px; font-weight: 600; }
.eref-roles li + li::before { content: ''; position: absolute; top: 28px; right: calc(50% + 38px); width: calc(100% - 52px); height: 1px; background: #dcdbd7; }
.eref-map-captions { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 28px; text-align: center; font-size: 14px; color: #666d6d; }
@media (max-width: 900px) {
 .eref-content h2 { font-size: 28px; }
 .eref-integration-card { padding: 28px; }
 .eref-integration-card h2 { font-size: 24px; }
 .eref-support-body { grid-template-columns: minmax(0,1fr) 220px; gap: 24px; }
}
@media (max-width: 640px) {
 .eref-content > * + * { margin-top: 40px; }
 .eref-content h2 { font-size: 26px; margin-bottom: 20px; }
 .eref-content p { font-size: 16px; line-height: 1.85; }
 .eref-integrations, .eref-principles, .eref-partners, .eref-support-body { grid-template-columns: 1fr; }
 .eref-integration-card, .eref-security { padding: 24px; }
 .eref-integration-card h2 { font-size: 23px; }
 .eref-icon { width: 48px; height: 48px; }
 .eref-principles { gap: 16px; }
 .eref-principles li { font-size: 16px; }
 .eref-partners { text-align: left; padding: 24px; gap: 24px; }
 .eref-support figure { max-width: 300px; justify-self: center; }
 .eref-data-map { padding: 24px 20px; }
 .eref-roles { grid-template-columns: 1fr; gap: 24px; }
 .eref-roles li { flex-direction: row; text-align: left; gap: 20px; }
 .eref-roles li + li::before { display: none; }
 .eref-map-captions { grid-template-columns: 1fr; text-align: left; gap: 8px; }
}

.eref-partner-logo { height: 72px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.eref-partner-logo img { display: block; width: auto; height: auto; max-width: min(100%,212px); max-height: 68px; object-fit: contain; }
.eref-partners li:nth-child(2) .eref-partner-logo img { width: 160px; }
.eref-partners li:nth-child(3) .eref-partner-logo img { width: 68px; height: 68px; }
@media(max-width:767px) { .eref-partner-logo { justify-content: flex-start; margin-bottom: 16px; } }
.eref-partners li:nth-child(2) .eref-partner-logo img { filter: brightness(0); }

/* 図の説明を上に配置 */
.eref-data-map .eref-map-captions { list-style: none; padding: 0 0 28px; margin: 0 0 32px; border-bottom: 1px solid #e2e0dc; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; text-align: left; color: var(--ink); }
.eref-map-captions li { min-width: 0; display: flex; align-items: center; gap: 16px; padding: 18px 20px; background: white; border-radius: 10px; }
.eref-map-captions strong { font-size: 18px; font-weight: 600; line-height: 1.6; overflow-wrap: anywhere; }
.eref-map-captions .eref-caption-number { display: grid; place-items: center; flex: 0 0 36px; height: 36px; border-radius: 50%; background: #fff0e5; color: var(--brand); font: 600 14px/1 Arial,sans-serif; }
@media(max-width:767px) {
 .eref-data-map .eref-map-captions { grid-template-columns: 1fr; gap: 12px; padding-bottom: 24px; margin-bottom: 24px; }
 .eref-map-captions li { padding: 16px; gap: 12px; }
 .eref-map-captions strong { font-size: 16px; }
}

.eref-integration-card > .eref-icon { display: block; width: 80px; height: 80px; margin-inline: auto; object-fit: contain; }
@media (max-width: 767px) {
 .eref-integration-card > .eref-icon { width: 64px; height: 64px; }
}

.eref-roles .eref-icon { display: block; width: 80px; height: 80px; object-fit: contain; }
.eref-roles .eref-role-logo { padding: 4px; box-sizing: border-box; }
.eref-roles li + li::before { top: 40px; right: calc(50% + 52px); width: calc(100% - 80px); }
@media (max-width: 767px) {
 .eref-roles .eref-icon { width: 64px; height: 64px; }
 .eref-roles .eref-role-logo { padding: 3px; }
}