#btnMail { position: relative; }
#btnMail.mail-unread::after { content: ''; position: absolute; width: 9px; height: 9px; top: 2px; right: 2px; border-radius: 50%; background: #e55368; border: 2px solid var(--card); }
#mailWin { width: min(780px, calc(100vw - 24px)); max-height: calc(100dvh - 100px); padding: 20px; overflow-y: auto; }
.mail-toolbar, .mail-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.mail-toolbar { justify-content: space-between; }
.mail-toolbar .sub-btn, .mail-actions .sub-btn, .mail-actions .main-btn { width: auto; margin-top: 0; padding: 0 16px; }
.mail-toolbar [role="tablist"] { display: flex; gap: 6px; }
.mail-toolbar [role="tab"] { border: 1px solid var(--line); border-radius: 10px; background: var(--soft); padding: 8px 18px; }
.mail-toolbar [aria-selected="true"] { background: var(--green-pale); border-color: var(--green-deep); color: var(--accent); font-weight: bold; }
.mail-hint, .mail-empty { color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.mail-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 16px; min-height: 280px; }
#mailList { max-height: 440px; overflow-y: auto; border-right: 1px solid var(--line); padding-right: 12px; }
.mail-row { width: 100%; display: grid; gap: 7px; text-align: left; padding: 13px 10px; border: 1px solid transparent; border-radius: 10px; background: var(--soft); margin-bottom: 8px; overflow-wrap: anywhere; }
.mail-row small, #mailDetail > small { font-size: 11px; color: var(--ink-soft); }
.mail-row.selected { border-color: var(--green-deep); background: var(--green-pale); }
.mail-row.unread strong::before { content: '● '; color: var(--pink); }
.mail-select { display: grid; gap: 7px; width: 100%; padding: 0; border: 0; background: transparent; color: var(--ink); text-align: left; font: inherit; cursor: pointer; }
.mail-attachment-grid { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.mail-item-slot { position: relative; flex: 0 0 44px; width: 44px; height: 44px; padding: 3px; border: 1px solid var(--line); border-radius: 8px; background: var(--card2); color: var(--ink); cursor: pointer; }
.mail-item-slot:hover, .mail-item-slot:focus-visible { outline: 2px solid var(--green-deep); outline-offset: 1px; }
.mail-item-icon { display: block; width: 36px; height: 36px; object-fit: contain; }
.mail-item-count { position: absolute; bottom: 1px; right: 3px; color: #fff; font-size: 12px; line-height: 1.2; text-shadow: 0 1px 2px #000, 1px 0 2px #000, -1px 0 2px #000; }
.mail-item-bound { position: absolute; top: 0; left: 0; border-radius: 6px 0 6px 0; padding: 1px 3px; background: var(--green-deep); color: #fff; font: normal 10px/1.3 sans-serif; }
.mail-item-enhance { position: absolute; top: 1px; right: 2px; color: #fff; font-size: 11px; text-shadow: 0 1px 2px #000, 1px 0 2px #000; }
.mail-monthly { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-soft); }
.mail-monthly-icon { width: 28px; height: 28px; object-fit: contain; }
.mail-preview { gap: 6px; }
.mail-preview .mail-monthly { font-size: 11px; }
#mailDetail { min-width: 0; overflow-wrap: anywhere; }
#mailDetail h4 { font-size: 20px; margin: 12px 0; }
.mail-official-badge { display: inline-block; background: var(--green-pale); color: var(--accent); border: 1px solid var(--green); padding: 4px 10px; border-radius: 20px; font-weight: bold; font-size: 12px; }
.mail-body { white-space: pre-wrap; line-height: 1.8; font-size: 14px; }
.mail-attachments { display: grid; gap: 6px; background: var(--soft); border: 1px solid var(--line); border-radius: 12px; padding: 12px; font-size: 13px; }
.mail-claimed { color: var(--accent); font-size: 13px; }
.mail-actions { margin-top: 16px; }
#mailForm label { display: grid; gap: 6px; margin: 10px 0; font-size: 13px; }
#mailForm input, #mailForm textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; background: var(--card2); color: var(--ink); padding: 10px; font: inherit; }
#mailForm textarea { resize: vertical; }
#mailStatus { color: var(--accent); font-size: 13px; min-height: 20px; margin-bottom: 0; overflow-wrap: anywhere; }
@media (max-width: 600px) {
  #mailWin { width: calc(100vw - 16px); max-height: calc(100dvh - 76px); padding: 14px; }
  .mail-layout { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  #mailList { max-height: 180px; border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 6px; }
  .mail-row { padding: 10px; gap: 4px; }
  #mailDetail h4 { font-size: 18px; }
  .mail-body { font-size: 13px; }
  .mail-actions button { min-height: 40px; }
}