/* 语义变量供奶雾主题与未来黑白杂志主题共同覆盖，不硬编码主题 ID。 */
:root {
  --chat-media-surface: var(--color-surface);
  --chat-media-panel: var(--glass-strong);
  --chat-media-ink: var(--color-text);
  --chat-media-muted: var(--color-text-caption);
  --chat-media-border: var(--color-border);
  --chat-media-accent: var(--color-primary-soft);
  --chat-media-radius: 20px;
  --chat-media-shadow: var(--shadow-card);
}
.composer .chat-plus { flex-shrink: 0; min-width: 34px; padding-inline: 5px; border-color: var(--chat-media-border); border-radius: 50%; color: var(--color-primary-ink); background: var(--chat-media-panel); font-size: 23px; font-weight: 400; box-shadow: inset 0 1px 0 var(--glass-edge); }
.chat-plus[aria-expanded=true] { transform: rotate(45deg); }
.chat-media-panel { position: absolute; inset: auto 8px 0; z-index: 5; max-height: 78%; overflow-y: auto; overscroll-behavior: contain; padding: 17px 14px 20px; border: 1px solid var(--chat-media-border); border-radius: 25px 25px 12px 12px; background: var(--chat-media-surface); color: var(--chat-media-ink); box-shadow: 0 -7px 30px rgb(75 59 79 / 12%); scrollbar-width: thin; animation: appear .2s ease; }
.media-panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.media-panel-heading .tiny-label { font-size: 8px; letter-spacing: .6px; }
.media-panel-heading h3 { font-size: 17px; font-weight: 500; margin: 8px 0; }
.media-panel-heading .text-button { font-size: 11px; }
.media-note { color: var(--chat-media-muted); font-size: 10px; line-height: 1.9; margin: 10px 0; overflow-wrap: anywhere; }
.media-tools { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 9px; margin: 15px 0; }
.media-tools button { font: inherit; font-size: 12px; padding: 13px 8px; border-radius: 16px; border: 1px solid var(--chat-media-border); color: var(--chat-media-ink); background: linear-gradient(145deg,var(--chat-media-panel),var(--chat-media-accent)); }
.media-tools button span { display: block; margin-bottom: 7px; font-size: 24px; color: var(--color-primary-ink); }
.media-photo-draft { border: 1px solid var(--chat-media-border); padding: 9px; border-radius: var(--chat-media-radius); background: var(--chat-media-panel); }
.media-photo-draft > img { display: block; width: 100%; max-height: 155px; object-fit: contain; border-radius: 13px; }
.media-photo-draft > div { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.media-photo-draft button { font-size: 11px; }
.media-library-heading { display: flex; gap: 9px; align-items: center; justify-content: space-between; margin: 19px 0 11px; }
.media-library-heading h4 { font-size: 13px; font-weight: 500; margin: 0; }
.media-library-heading button { border: 1px solid var(--chat-media-border); border-radius: 99px; background: transparent; color: var(--chat-media-muted); padding: 5px 8px; font: inherit; font-size: 10px; }
.media-library-heading button[aria-pressed=true] { background: var(--chat-media-accent); color: var(--color-primary-ink); }
.chat-sticker-list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; }
.chat-sticker-list > .media-note { grid-column: 1 / -1; }
.sticker-cell { min-width: 0; border: 1px solid var(--chat-media-border); border-radius: 14px; padding: 6px; background: var(--chat-media-panel); }
.sticker-cell img { width: 100%; aspect-ratio: 1; display: block; object-fit: contain; border-radius: 8px; }
.sticker-name { display: block; font-size: 10px; line-height: 1.8; overflow-wrap: anywhere; margin: 5px 0; }
.sticker-cell button { display: block; width: 100%; font: inherit; font-size: 10px; line-height: 1.8; border: 0; border-radius: 7px; padding: 4px 0; background: transparent; color: var(--color-primary-ink); }
.sticker-cell button:first-of-type { background: var(--chat-media-accent); }
.media-bubble.photo-bubble { padding: 6px !important; border-radius: var(--chat-media-radius); max-width: 205px; width: min(205px,100%); overflow: hidden; }
.media-bubble.sticker-bubble { padding: 0 !important; background: transparent; border: 0; box-shadow: none; max-width: 130px; }
.media-bubble::before, .media-bubble::after { display: none !important; }
.chat-media-thumb { display: block; max-width: 100%; width: 190px; min-height: 75px; border: 0; padding: 0; color: var(--chat-media-muted); background: var(--chat-media-panel); border-radius: 15px; overflow: hidden; font: inherit; font-size: 11px; }
.chat-media-thumb img { display: block; max-width: 100%; width: 190px; height: auto; max-height: 230px; object-fit: contain; }
.sticker-bubble .chat-media-thumb { width: 125px; background: transparent; }
.sticker-bubble .chat-media-thumb img { width: 125px; max-height: 150px; }
.media-caption { display: block; font-size: 10px; line-height: 1.8; color: var(--chat-media-muted); overflow-wrap: anywhere; padding: 4px; }
.chat-media-viewer { width: min(360px,90vw); max-height: 90dvh; border: 1px solid var(--chat-media-border); border-radius: 22px; padding: 14px; background: var(--chat-media-surface); color: var(--chat-media-ink); box-shadow: var(--chat-media-shadow); }
.chat-media-viewer[open] { display: flex; flex-direction: column; gap: 12px; }
.chat-media-viewer img { width: 100%; max-height: 70dvh; min-height: 0; object-fit: contain; border-radius: 13px; }
.chat-media-viewer::backdrop { background: rgb(47 40 49 / 65%); }
@media (max-width:350px) { .chat-media-panel { padding-inline: 11px; } .chat-sticker-list { gap: 6px; } .composer { gap: 5px; } .composer .chat-plus { min-width: 31px; } }
@media (prefers-reduced-motion:reduce) { .chat-media-panel { animation: none; } }