/* materials 页面专用样式（素材库） */
.materials [hidden], .materials-detail [hidden] { display: none !important; }   /* 详情弹窗挂在 body 上，不在 .materials 里面 */

.materials-dot { font-style: normal; color: #cfd5e2; margin: 0 2px; }
.materials .pg-sub .ic { width: 14px; height: 14px; color: var(--brand); }
.materials-bad { color: var(--red); }

.materials-tabs { display: inline-flex; margin-bottom: 14px; }

/* ---- 筛选区 ---- */
.materials-filter { padding: 12px 16px; margin-bottom: 12px; display: grid; gap: 10px; }
.materials-frow { display: flex; align-items: flex-start; gap: 10px; min-width: 0; }
.materials-flbl { flex: none; width: 34px; padding-top: 4px; font-size: 13px; color: var(--mute); }
.materials-chips { flex: 1; min-width: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.materials-chip {
  height: 28px; display: inline-flex; align-items: center; gap: 5px; padding: 0 10px;
  font-size: 13px; border-radius: 7px; background: var(--line-2); color: var(--sub);
  transition: background .15s, color .15s;
}
.materials-chip i { font-style: normal; font-size: 11.5px; color: var(--mute); font-variant-numeric: tabular-nums; }
.materials-chip:hover { color: var(--text); background: #e8ecf4; }
.materials-chip.on { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.materials-chip.on i { color: var(--brand); }
.materials-chip.zero { opacity: .45; }
.materials-opts { align-items: center; flex-wrap: wrap; }
.materials-opts .materials-flbl { padding-top: 0; }
.materials-seg { padding: 3px; }
.materials-seg .tab { height: 28px; padding: 0 12px; }
.materials-tog { height: 32px; display: inline-flex; align-items: center; gap: 8px; padding: 0 4px; color: var(--sub); font-size: 13.5px; white-space: nowrap; }
.materials-tog:hover { color: var(--text); }
.materials-sort { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--mute); white-space: nowrap; }
.materials-sort .select { width: auto; height: 32px; padding: 0 8px; }

.materials-count { margin: 4px 2px 12px; color: var(--sub); font-size: 13px; }
.materials-count b { color: var(--text); font-variant-numeric: tabular-nums; }
.materials-count .link { margin-left: 6px; }

/* ---- 卡片网格 ---- */
.materials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.materials-grid[data-o="h"] { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.materials-grid[data-o="all"] { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.materials-full { grid-column: 1 / -1; }

.materials-card {
  display: flex; flex-direction: column; min-width: 0; text-align: left; overflow: hidden;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow);
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.materials-card:hover { border-color: #c9d5f5; box-shadow: 0 6px 20px rgba(59, 108, 246, .12); transform: translateY(-1px); }
.materials-card:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.materials-card.gone { opacity: .6; }

.materials-thumb { position: relative; display: block; aspect-ratio: 9 / 16; background: #161b2b; overflow: hidden; }
.materials-grid[data-o="h"] .materials-thumb { aspect-ratio: 16 / 9; }
.materials-grid[data-o="all"] .materials-thumb { aspect-ratio: 3 / 4; }
.materials-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.materials-grid[data-o="all"] .materials-thumb img { object-fit: contain; }
.materials-thumb.broken img { display: none; }
.materials-ph { position: absolute; inset: 0; display: grid; place-items: center; color: #3b4460; }
.materials-ph .ic { width: 30px; height: 30px; }
.materials-gone { position: absolute; left: 0; right: 0; bottom: 42%; text-align: center; font-size: 12px; color: #ffb4ad; }

.materials-b {
  position: absolute; z-index: 1; font-size: 11px; line-height: 18px; padding: 0 6px; border-radius: 5px;
  color: #fff; background: rgba(12, 16, 28, .62); font-variant-numeric: tabular-nums; white-space: nowrap;
}
.materials-b.tl { top: 6px; left: 6px; }
.materials-b.tr { top: 6px; right: 6px; }
.materials-b.bl { bottom: 6px; left: 6px; }
.materials-b.br { bottom: 6px; right: 6px; }
.materials-b.warn { background: rgba(240, 71, 58, .92); }

.materials-desc {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin: 8px 10px 4px; font-size: 13px; line-height: 1.45; min-height: 2.9em; color: var(--text);
}
.materials-desc mark, .materials-meta mark { background: #fff1b8; color: inherit; border-radius: 3px; padding: 0 1px; }
.materials-meta { display: flex; align-items: center; gap: 6px; min-width: 0; margin: 0 10px 9px; font-size: 11.5px; color: var(--mute); }
.materials-meta code { font: 11.5px/1.4 ui-monospace, Menlo, monospace; color: var(--sub); white-space: nowrap; }
.materials-meta span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-left: auto; }
.materials-wtags { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 10px 10px; }
.materials-wtags .chip { font-size: 11px; }

.materials-more { display: flex; justify-content: center; padding: 22px 0 6px; font-size: 13px; }

/* ---- 详情弹窗 ---- */
.materials-detail { display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr); gap: 20px; align-items: start; }
.materials-detail.wide { grid-template-columns: minmax(0, 1fr); }
.materials-player { background: #0d111c; border-radius: 10px; overflow: hidden; }
.materials-player video { display: block; width: 100%; max-height: 70vh; background: #000; }
.materials-detail.wide .materials-player video { max-height: 56vh; }
.materials-vmsg, .materials-noplay { margin: 0; padding: 40px 18px; text-align: center; color: #c7cde0; font-size: 13px; line-height: 1.7; }
.materials-info { min-width: 0; }
.materials-warn {
  display: flex; align-items: flex-start; gap: 6px; padding: 9px 12px; margin-bottom: 12px;
  border-radius: 9px; background: #fff1ef; color: #c2362b; font-size: 13px; line-height: 1.6;
}
.materials-warn .ic { width: 16px; height: 16px; margin-top: 2px; }
.materials-dl { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 9px 12px; margin: 0; font-size: 13.5px; }
.materials-dl dt { color: var(--mute); }
.materials-dl dd { margin: 0; min-width: 0; line-height: 1.6; }
.materials-dl dd small { display: block; color: var(--mute); font-size: 12px; }
.materials-dl dd small.materials-bad { color: var(--red); }
.materials-dl .chip { display: inline-block; margin: 0 2px 4px 0; }
.materials-key { font: 600 14px/1.4 ui-monospace, Menlo, monospace; color: var(--brand); }
.materials-path { font: 12px/1.6 ui-monospace, Menlo, monospace; color: var(--sub); word-break: break-all; }
.materials-stars { color: var(--amber); letter-spacing: 1px; }
.materials-star-off { color: #dde2ec; }
.materials-btns { margin-top: 16px; }

.materials-looked { list-style: none; margin: 0 auto 14px; padding: 0; max-width: 560px; font: 12px/1.8 ui-monospace, Menlo, monospace; color: var(--mute); word-break: break-all; }

@media (max-width: 860px) {
  .materials-tabs { display: flex; }
  .materials-tabs .tab { flex: 1; justify-content: center; }
  .materials-filter { padding: 10px 12px; }
  .materials-flbl { width: auto; min-width: 30px; }
  .materials-chips { gap: 5px; }
  .materials-chip { height: 26px; padding: 0 8px; font-size: 12.5px; }
  .materials-sort { margin-left: 0; }
  .materials-grid, .materials-grid[data-o="all"] { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .materials-grid[data-o="h"] { grid-template-columns: minmax(0, 1fr); }
  .materials-detail { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .materials-player video { max-height: 58vh; }
  .materials-dl { grid-template-columns: 64px minmax(0, 1fr); }
  .materials-btns .btn { flex: 1; justify-content: center; }
}

/* 空状态里的按钮（「再找一次」「再读一次」）：公共样式 .empty.big .ic 会把按钮里的小图标放大成 36px，压回去（10-02 体检） */
.materials .empty.big .btn .ic { width: 16px; height: 16px; margin-bottom: 0; color: inherit; }

/* ---- 我的文件夹（10-03）：清单那块的样式在 /css/folderpick.css ---- */
.materials-fhint {
  display: flex; align-items: flex-start; gap: 7px; margin: 0 0 12px; padding: 9px 12px;
  border-radius: 9px; background: #fff7ec; color: #9a5a0a; font-size: 13px; line-height: 1.6;
}
.materials-fhint .ic { width: 16px; height: 16px; flex: none; margin-top: 2px; }
.materials-fadd { margin: 10px 0 16px; }
.panel + .materials-fhint { margin: 12px 0 0; }   /* 空状态卡片下面那条提示 */
.materials-fadd .btn { border-style: dashed; color: var(--brand); }
.materials-fmeta { justify-content: flex-start; gap: 4px; }
.materials-fmeta span { margin-left: 0; }
.materials-fmeta .ic { width: 12px; height: 12px; flex: none; }
#mtFolders .materials-flbl { width: 42px; }   /* 「文件夹」三个字别折行 */

/* 新用户引导卡 */
.materials-guide { padding: 22px 24px; margin-bottom: 14px; border-color: #c9d5f5; background: linear-gradient(180deg, #f6f9ff, #fff 60%); }
.materials-guide-hd { display: flex; align-items: flex-start; gap: 14px; }
.materials-guide-no {
  width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 50%;
  color: #fff; font-weight: 700; background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.materials-guide h2 { margin: 2px 0 4px; font-size: 18px; }
.materials-guide-hd p { margin: 0; color: var(--sub); font-size: 13.5px; line-height: 1.7; }
.materials-guide-steps { margin: 14px 0 16px; padding-left: 68px; color: var(--text); font-size: 14px; line-height: 1.9; }
.materials-guide-steps b { color: var(--brand); }
.materials-guide .row-gap .mute { font-size: 12.5px; }
.materials-guide-note { margin: 12px 0 0; font-size: 12.5px; color: var(--mute); }

@media (max-width: 860px) {
  .materials-guide { padding: 16px; }
  .materials-guide h2 { font-size: 16px; }
  .materials-guide-steps { padding-left: 20px; font-size: 13.5px; }
  .materials-guide .row-gap .btn { flex: 1; justify-content: center; }
  .materials-tabs .tab { padding: 0 6px; gap: 3px; font-size: 13px; }   /* 三个标签挤一行 */
  #mtFolders .materials-flbl { width: auto; min-width: 42px; }
  .materials-fadd .btn { width: 100%; justify-content: center; }
}