/* ============================================================
   发现：作品广场（#/gallery）与商业案例（#/cases）
   在 creator-premium.css 之后加载；只作用于 discover- 前缀的类，
   不修改全局变量。紫色只留给 AI，绿色只留给完成态。
   ============================================================ */

/* ---------- 页头 ---------- */
.ws-view > .discover-head:first-child { margin: 0 0 28px; align-items: flex-end; }
.discover-head h1 { margin: 0; font-size: 30px; font-weight: 600; letter-spacing: -0.025em; line-height: 1.2; }
.discover-head .sub { margin-top: 6px; font-size: 15px; }
.discover-scope { flex-shrink: 0; color: var(--c-text-3); font-size: 13px; }
.discover-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.discover-note { margin: 0 0 20px; color: var(--c-text-3); font-size: 13px; line-height: 1.5; }
.discover-note.hub-boundary { padding: 0; border: 0; background: none; }

/* ---------- 搜索 ---------- */
.discover-toolbar { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.discover-search { position: relative; flex: 0 1 320px; }
.discover-search svg { position: absolute; top: 50%; left: 12px; width: 16px; height: 16px; margin-top: -8px; fill: none; stroke: var(--c-text-3); stroke-width: 1.8; stroke-linecap: round; pointer-events: none; }
.discover-search input {
  width: 100%;
  height: 38px;
  padding: 0 14px 0 36px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: rgba(118, 118, 128, 0.12);
  color: var(--c-text);
  font: inherit;
  font-size: 15px;
  outline: 0;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.discover-search input::placeholder { color: var(--c-text-3); }
.discover-search input:focus { border-color: var(--c-primary); background: var(--c-surface); box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.16); }
.discover-count { color: var(--c-text-3); font-size: 13px; white-space: nowrap; }
.discover-nomatch { margin: 24px 0 0; color: var(--c-text-2); font-size: 15px; text-align: center; }
.discover-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.discover-filters button { min-height: 36px; padding: 0 15px; border: 0; border-radius: 999px; background: var(--c-fill); color: var(--c-text-2); font: inherit; font-size: 13px; cursor: pointer; }
.discover-filters button[aria-pressed="true"] { background: var(--c-text); color: var(--c-surface); }
.discover-filters button:focus-visible, .discover-source-link:focus-visible { outline: 3px solid var(--c-primary); outline-offset: 3px; }

/* ---------- 作品卡 ---------- */
.discover-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.discover-card { display: flex; flex-direction: column; overflow: hidden; border-radius: var(--radius); background: var(--c-surface); transition: box-shadow 0.3s var(--ease); }
.discover-card:hover, .gallery-card.discover-card:hover { box-shadow: var(--shadow); transform: none; }
.discover-card[hidden] { display: none; }
.discover-cover { display: grid; place-items: center; aspect-ratio: 16 / 10; overflow: hidden; background: #ececf0; }
.discover-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.discover-card:hover .discover-cover img { transform: scale(1.03); }
.discover-cover span { font-size: 64px; line-height: 1; transition: transform 0.4s var(--ease); }
.discover-cover .work-mark-lg { font-size: 38px; }
.discover-cover.cr-tint-demo { background: linear-gradient(135deg, #e9efff, #dfe6fb); }
.discover-cover.cr-tint-creation { background: linear-gradient(135deg, #e3f6f2, #d4eeea); }
.discover-cover.cr-tint-maker { background: linear-gradient(135deg, #fff0e4, #fbe2d2); }
.discover-cover.discover-tone-violet { background: linear-gradient(135deg, #edf0ff, #e6dcf9); color: #5952a8; }
.discover-cover.discover-tone-blue { background: linear-gradient(135deg, #e7f2ff, #dbe9f8); color: #356492; }
.discover-cover.discover-tone-sky { background: linear-gradient(135deg, #dff5f7, #d3e9f8); color: #28748c; }
.discover-cover.discover-tone-mint { background: linear-gradient(135deg, #e3f4ec, #d4ebe5); color: #397965; }
.discover-cover.discover-tone-orange { background: linear-gradient(135deg, #fff2e6, #f8dfd0); color: #ad6842; }
.discover-cover.discover-tone-ink { background: linear-gradient(135deg, #dce7f0, #cad8e7); color: #3b526e; }
.discover-cover .discover-source-mark { display: grid; place-items: center; width: 94px; height: 94px; border: 1px solid rgba(255,255,255,.75); border-radius: 28px; background: rgba(255,255,255,.55); box-shadow: 0 16px 40px rgba(38,55,80,.1); font-size: 36px; font-weight: 700; }
.discover-source-kind { color: var(--c-text-3); font-size: 12px; }
.discover-source-link { margin-left: auto; color: var(--c-primary); font-size: 13px; font-weight: 600; text-decoration: none; }
.discover-source-link:hover { text-decoration: underline; }
.discover-card:hover .discover-cover span { transform: scale(1.06); }
.discover-card-body { display: flex; flex: 1; flex-direction: column; padding: 18px 20px 20px; }
.discover-card-body h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.3; overflow-wrap: anywhere; }
.discover-card-body p { display: -webkit-box; margin: 0 0 18px; overflow: hidden; color: var(--c-text-2); font-size: 14px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.discover-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--c-hairline); }
.discover-author { display: flex; align-items: center; gap: 10px; min-width: 0; }
.discover-author > span:last-child { min-width: 0; }
.discover-author strong { display: block; overflow: hidden; font-size: 13px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.discover-author small { display: block; overflow: hidden; color: var(--c-text-3); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.discover-avatar { display: grid; flex-shrink: 0; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: #e8e8ed; color: var(--c-text-2); font-size: 12px; font-weight: 600; }
.discover-open {
  flex-shrink: 0;
  min-width: 64px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--c-fill);
  color: var(--c-primary);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: background 0.2s var(--ease);
}
.discover-open:hover { background: var(--c-fill-strong); text-decoration: none; }
.discover-open.is-off { background: none; color: var(--c-text-3); font-weight: 400; }

/* 作品数据 */
.discover-demo .discover-card-body h3 { margin-bottom: 14px; }
.discover-demo .discover-card-foot { padding-top: 0; border-top: 0; }
.discover-stats { display: flex; flex-shrink: 0; gap: 12px; color: var(--c-text-3); font-size: 12px; font-variant-numeric: tabular-nums; }
.discover-stats > span { display: inline-flex; align-items: center; gap: 4px; }
.discover-stats svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; }

/* 分区 */
.discover-section:not([hidden]) ~ .discover-section:not([hidden]) { margin-top: 48px; }
.discover-section[hidden] { display: none; }
.discover-section-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.discover-section-head h2 { margin: 0; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }
.discover-section-head span { color: var(--c-text-3); font-size: 13px; }
.discover-section .discover-grid + .discover-note, .discover-section .discover-empty + .discover-note { margin: 16px 0 0; }

/* 加载占位 */
.discover-skeleton { overflow: hidden; border-radius: var(--radius); background: var(--c-surface); }
.discover-skeleton span { display: block; aspect-ratio: 16 / 10; background: #ececf0; }
.discover-skeleton i { display: block; height: 12px; margin: 18px 20px 0; border-radius: 6px; background: #ececf0; }
.discover-skeleton i:last-child { width: 55%; margin-bottom: 22px; }
@media (prefers-reduced-motion: no-preference) {
  .discover-skeleton span, .discover-skeleton i { animation: discover-pulse 1.4s ease-in-out infinite; }
}
@keyframes discover-pulse { 50% { opacity: 0.55; } }

/* ---------- 空状态 ---------- */
.discover-empty { display: flex; flex-direction: column; align-items: center; padding: 64px 24px; border-radius: var(--radius-l); background: var(--c-surface); text-align: center; }
.discover-empty h2 { margin: 20px 0 6px; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }
.discover-empty p { max-width: 420px; margin: 0; color: var(--c-text-2); font-size: 15px; line-height: 1.6; }
.discover-empty .discover-empty-hint { margin-top: 2px; color: var(--c-text-3); font-size: 14px; }
.discover-empty .btn { margin-top: 24px; }
.discover-empty.is-compact { padding: 36px 24px; border-radius: var(--radius); }
.discover-empty.is-compact .discover-art { width: 84px; height: 68px; margin-bottom: 12px; }
.discover-empty.is-compact h2 { margin-top: 0; font-size: 17px; }
.discover-empty.is-compact .btn { margin-top: 18px; }
.discover-art { width: 120px; height: 96px; fill: none; stroke: #aeaeb2; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.discover-art .fill { fill: var(--c-surface); }
.discover-empty .discover-art .fill { fill: #f5f5f7; }

/* ---------- 商业案例 ---------- */
.cases-toolbar { flex-wrap: wrap; justify-content: space-between; }
.cases-segmented { display: inline-flex; gap: 2px; padding: 3px; border-radius: 10px; background: rgba(118, 118, 128, 0.12); }
.cases-segmented button { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 0 16px; border: 0; border-radius: 8px; background: transparent; color: var(--c-text); font: inherit; font-size: 14px; font-weight: 500; cursor: pointer; transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease); }
.cases-segmented button span { color: var(--c-text-3); font-size: 12px; font-variant-numeric: tabular-nums; }
.cases-segmented button:hover:not([aria-selected="true"]) { background: rgba(0, 0, 0, 0.04); }
.cases-segmented button[aria-selected="true"] { background: var(--c-surface); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 3px 8px rgba(0, 0, 0, 0.06); }

.cases-scenes { display: flex; flex-wrap: wrap; gap: 8px; margin: -4px 0 24px; }
.cases-scene-chip { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 0 14px; border: 0; border-radius: var(--radius-pill); background: var(--c-fill); color: var(--c-text); font: inherit; font-size: 13px; cursor: pointer; transition: background 0.2s var(--ease), color 0.2s var(--ease); }
.cases-scene-chip svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.cases-scene-chip:hover { background: var(--c-fill-strong); }
.cases-scene-chip[aria-pressed="true"] { background: var(--c-text); color: var(--c-surface); }

.cases-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); align-items: start; gap: 20px; }
.cases-card { display: flex; flex-direction: column; overflow: hidden; border-radius: var(--radius); background: var(--c-surface); transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease); }
.cases-card:hover { box-shadow: var(--shadow); }
.cases-card[hidden] { display: none; }
.cases-card-top { position: relative; display: flex; align-items: center; gap: 8px; height: 60px; padding: 0 20px; overflow: hidden; }
.cases-kind { position: relative; z-index: 1; color: var(--c-text-2); font-size: 12px; font-weight: 600; letter-spacing: 0.02em; }
.cases-stage { position: relative; z-index: 1; padding: 3px 10px; border-radius: var(--radius-pill); background: rgba(255, 255, 255, 0.82); color: var(--c-text); font-size: 12px; font-weight: 600; white-space: nowrap; }
.cases-top-art { position: absolute; top: 50%; right: 14px; margin-top: -34px; }
.cases-top-art svg { width: 68px; height: 68px; fill: none; stroke: rgba(29, 29, 31, 0.12); stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; }
.cases-card-body { display: flex; flex: 1; flex-direction: column; padding: 18px 20px 18px; }
.cases-card h2 { margin: 0; font-size: 19px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.3; }
.cases-card h2 span { color: var(--c-text-3); font-size: 13px; font-weight: 400; letter-spacing: 0; }
.cases-meta { margin: 4px 0 0; color: var(--c-text-3); font-size: 13px; }

.cases-points { margin: 16px 0 0; }
.cases-points > div { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 12px; padding: 11px 0; border-top: 1px solid var(--c-hairline); }
.cases-points dt { padding-top: 2px; color: var(--c-text-3); font-size: 12px; font-weight: 600; }
.cases-points dd { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin: 0; font-size: 14px; line-height: 1.5; }
.cases-points dd small { flex-basis: 100%; color: var(--c-text-3); font-size: 12px; line-height: 1.5; }
.cases-scene-tag { display: inline-flex; align-items: center; gap: 5px; color: var(--c-text); font-weight: 600; }
.cases-scene-tag svg { width: 15px; height: 15px; fill: none; stroke: var(--c-primary); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.cases-points dd.cases-highlight { color: var(--c-text); font-weight: 500; }
.cases-fit { display: inline-flex; gap: 3px; }
.cases-fit i { width: 14px; height: 6px; border-radius: 3px; background: #e3e3e8; }
.cases-fit i.on { background: var(--c-primary); }
.cases-points dd b { color: var(--c-primary); font-size: 13px; font-weight: 600; }

.cases-more { margin-top: 4px; border-top: 1px solid var(--c-hairline); }
.cases-more summary { display: flex; align-items: center; justify-content: space-between; padding: 11px 0; color: var(--c-text-2); font-size: 13px; cursor: pointer; list-style: none; }
.cases-more summary::-webkit-details-marker { display: none; }
.cases-more summary::after { content: ""; width: 7px; height: 7px; margin-right: 4px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); transition: transform 0.2s var(--ease); }
.cases-more[open] summary::after { transform: rotate(-135deg); }
.cases-more p { margin: 0 0 8px; color: var(--c-text-2); font-size: 13px; line-height: 1.65; }
.cases-more .cases-founder { color: var(--c-text); font-weight: 500; }
.cases-more .cases-takeaway { color: var(--c-text); }
.cases-sources { margin: auto 0 0; padding-top: 10px; color: var(--c-text-3); font-size: 12px; line-height: 1.8; }
.cases-sources a { color: var(--c-primary); text-decoration: none; }
.cases-sources a:hover { text-decoration: underline; }
.cases-dot { margin: 0 6px; }
.cases-note { margin: 24px 0 0; }

@media (prefers-reduced-motion: reduce) {
  .cases-more summary::after { transition: none; }
  .discover-cover span, .discover-cover img { transition: none; }
  .discover-card:hover .discover-cover span, .discover-card:hover .discover-cover img { transform: none; }
}


@media (max-width: 760px) {
  .ws-view > .discover-head:first-child { margin-bottom: 20px; }
  .discover-head h1 { font-size: 26px; }
  .discover-scope { display: none; }
  .discover-search { flex: 1 1 auto; }
  .discover-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .discover-cover { aspect-ratio: 2 / 1; }
  .discover-section-head { flex-direction: column; gap: 2px; }
  .discover-source-link { margin: 6px 0 0; }
  .discover-filters { flex-wrap: nowrap; margin-right: -16px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
  .discover-filters button { flex: 0 0 auto; }
  .discover-cover span { font-size: 52px; }
  .discover-cover .work-mark-lg { font-size: 34px; }
  .cases-toolbar { flex-direction: column; align-items: stretch; gap: 12px; }
  .cases-segmented { display: flex; }
  .cases-segmented button { flex: 1; justify-content: center; padding: 0 8px; }
  .cases-list { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .cases-scenes { flex-wrap: nowrap; margin-right: -16px; overflow-x: auto; scrollbar-width: none; }
  .cases-scene-chip { flex-shrink: 0; }
  .discover-empty { padding: 48px 20px; }
}

@media (max-width: 560px) {
  .discover-section .discover-grid:has(.discover-demo) { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .discover-demo .discover-cover { aspect-ratio: 16 / 10; }
  .discover-demo .discover-card-body { padding: 12px 12px 14px; }
  .discover-demo .discover-card-body h3 { margin-bottom: 8px; font-size: 14px; }
  .discover-demo .discover-card-foot { flex-direction: column; align-items: flex-start; gap: 6px; }
  .discover-demo .discover-avatar { display: none; }
  .discover-demo .discover-author strong { font-size: 12px; color: var(--c-text-2); font-weight: 400; }
}