/* ============================================================
   蛋雕之家 · 素材中心公共样式
   供 robot-materials.html / laser-materials.html 两页共用。
   依赖 css/site.css 里的色板变量（--bg / --ink / --pri / --line ...）
   与导航、页脚；本文件只管素材页自己的区块。

   图区说明：素材缩略图是「360° 环绕蛋壳的横向长图」（实测画蛋约
   2.3:1、激光约 2.7:1），所以图区固定 16:7 并用 contain 完整显示，
   裁切会看不出两头的花纹。
   ============================================================ */

/* ---------- 面包屑 ---------- */
.crumb { padding: 18px 0 0; font-size: 13px; color: var(--mut); }
.crumb a:hover { color: var(--pri); }
.crumb span { margin: 0 8px; color: #c9bba5; }

/* ---------- 紧凑 hero（素材页不配大图） ---------- */
.m-hero { padding: 26px 0 10px; }
.m-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 1.5px;
  color: var(--pri); margin-bottom: 14px;
}
.m-eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--acc); }
.m-hero h1 { font-size: 30px; line-height: 1.35; font-weight: 700; letter-spacing: .5px; }
.m-hero h1 em { font-style: normal; color: var(--pri); }
.m-lead { margin-top: 14px; font-size: 15px; color: #6f6050; max-width: 660px; }
.m-metrics {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 12px; margin-top: 22px; max-width: 720px;
}
.m-metric { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 13px 16px; }
.m-metric b { display: block; font-size: 20px; color: var(--pri); letter-spacing: .5px; }
.m-metric span { font-size: 13px; color: var(--mut); }
@media (min-width: 720px) {
  .m-metrics { grid-template-columns: repeat(4, 1fr); }
  .m-hero h1 { font-size: 38px; }
}

/* ---------- 筛选工具条 ---------- */
.m-section { padding: 38px 0; }
.m-toolbar { display: flex; flex-direction: column; gap: 14px; margin: 6px 0 22px; }
.m-label { font-size: 13px; color: var(--mut); font-weight: 600; margin-bottom: -6px; }
.m-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.m-chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card);
  color: #6f6050; font-size: 14px; cursor: pointer; font-family: inherit;
}
.m-chip:hover { border-color: #dcc7ad; color: var(--pri); }
.m-chip[aria-pressed="true"] { background: var(--pri); border-color: var(--pri); color: #fff; font-weight: 600; }
.m-chip .n { font-size: 12px; opacity: .72; }

/* 搜索 */
.m-search { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.m-search input {
  flex: 1 1 240px; min-width: 0; min-height: 44px;
  padding: 10px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card);
  color: var(--ink); font-size: 16px; font-family: inherit;
}
.m-search input::placeholder { color: #b09e86; font-size: 14px; }
.m-search input:focus { outline: none; border-color: var(--pri); }
.m-toolbar-note {
  font-size: 13px; color: #a08d74;
  display: flex; align-items: flex-start; gap: 8px;
}
.m-toolbar-note::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--acc); flex: none; margin-top: 9px;
}

/* ---------- 素材网格（桌面 4 列 → 平板 3 列 → 手机 2 / 1 列） ---------- */
.m-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 420px)  { .m-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 700px)  { .m-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1180px) { .m-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; } }

.m-card {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden;
}

/* 图区：16:7 + contain，图案完整不裁切 */
.m-thumb {
  position: relative; display: block; width: 100%; aspect-ratio: 16 / 7;
  padding: 0; border: none; border-bottom: 1px solid var(--line);
  background: #fdf8ef; cursor: pointer; overflow: hidden;
}
.m-thumb img {
  width: 100%; height: 100%; object-fit: contain;
  display: block; transition: opacity .18s ease;
}
.m-thumb:hover img { opacity: .88; }
.m-badge {
  position: absolute; left: 8px; top: 8px;
  font-size: 11px; letter-spacing: .6px; font-weight: 600;
  color: var(--pri); background: rgba(255, 253, 248, .92);
  border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px;
}

.m-body { padding: 11px 13px 0; }
.m-title {
  font-size: 15px; font-weight: 700; line-height: 1.45;
  font-family: var(--serif); min-height: 44px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.m-meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 7px; padding-bottom: 11px; }
.m-meta span { font-size: 12px; color: var(--mut); }
.m-cat { color: var(--pri); background: var(--pri-soft); border-radius: 6px; padding: 1px 7px; }
.m-sep { color: #cdbfa9; }

/* 成品照小图：竖图 3:4，最多 3 张 */
.m-shots {
  display: flex; gap: 6px; padding: 0 13px 13px;
  margin-top: auto; flex-wrap: wrap; align-items: flex-end;
}
.m-shot {
  width: 56px; height: 75px; padding: 0; flex: none;
  border: 1px solid var(--line); border-radius: 8px;
  background: #fbf3e8; overflow: hidden; cursor: pointer;
}
.m-shot:hover { border-color: var(--acc); }
.m-shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.m-shot-label { font-size: 12px; color: #a08d74; align-self: center; }
@media (max-width: 419px) {
  .m-shot { width: 46px; height: 62px; }
}

/* ---------- 分页 ---------- */
.m-pager { display: flex; flex-direction: column; gap: 12px; align-items: center; margin-top: 26px; }
.m-pager-info { font-size: 13px; color: var(--mut); }
.m-pager-btns { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; justify-content: center; }
.m-pg {
  min-width: 38px; min-height: 38px; padding: 0 10px;
  border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); color: #6f6050; font-size: 14px;
  cursor: pointer; font-family: inherit;
}
.m-pg:hover:not(:disabled) { border-color: var(--pri); color: var(--pri); }
.m-pg[aria-current="page"] { background: var(--pri); border-color: var(--pri); color: #fff; font-weight: 600; }
.m-pg:disabled { opacity: .45; cursor: not-allowed; }
.m-pg-gap { font-size: 13px; color: var(--mut); padding: 0 2px; }
@media (min-width: 640px) { .m-pager { flex-direction: row; justify-content: space-between; } }

/* ---------- 空态 ---------- */
.m-empty {
  padding: 54px 20px; text-align: center; color: var(--mut);
  background: var(--card); border: 1px dashed var(--line);
  border-radius: var(--radius); font-size: 14px;
}

/* ---------- 说明区（网站只预览，原图在软件里） ---------- */
.m-how-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 760px) { .m-how-grid { grid-template-columns: repeat(3, 1fr); } }
.m-how-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
}
.m-how-card h3 { font-size: 17px; font-weight: 700; font-family: var(--serif); line-height: 1.5; }
.m-how-card p { font-size: 14px; color: var(--mut); margin-top: 8px; }
.m-how-kicker {
  display: block; font-size: 12px; letter-spacing: 1.4px;
  color: var(--acc); font-weight: 600; margin-bottom: 8px;
}
.m-sec-head { max-width: 720px; margin-bottom: 26px; }
.m-sec-head h2 { font-size: 24px; line-height: 1.35; margin-top: 10px; font-weight: 700; }
.m-sec-head p { margin-top: 10px; font-size: 14.5px; color: var(--mut); }
@media (min-width: 720px) { .m-sec-head h2 { font-size: 28px; } }

/* ---------- 成品照灯箱 ---------- */
.m-lb {
  position: fixed; inset: 0; z-index: 80; display: none;
  align-items: center; justify-content: center; padding: 24px;
  background: rgba(51, 38, 27, .62);
}
.m-lb.open { display: flex; }
.m-lb-inner {
  background: var(--card); border-radius: 16px;
  max-width: 560px; width: 100%; overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
}
.m-lb-figure { background: #fdf8ef; padding: 14px; display: flex; justify-content: center; }
.m-lb-figure img { max-width: 100%; max-height: 66vh; object-fit: contain; display: block; }
.m-lb-cap {
  padding: 12px 16px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px; align-items: center;
}
.m-lb-cap b { font-size: 14px; }
.m-lb-cap span { font-size: 12px; color: var(--mut); }
.m-lb-tools { display: flex; gap: 8px; align-items: center; flex: none; }
.m-lb-btn {
  min-width: 36px; min-height: 36px; padding: 0 10px;
  border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg); color: var(--ink); font-size: 16px;
  line-height: 1; cursor: pointer; font-family: inherit;
}
.m-lb-btn:hover:not(:disabled) { border-color: var(--pri); color: var(--pri); }
.m-lb-btn:disabled { opacity: .4; cursor: not-allowed; }

/* 减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .m-thumb img { transition: none; }
}