/* 图案库 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-mini-header { max-width: 1180px; }
.mini-nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.mini-nav a { color: #475569; font-size: 14px; font-weight: 600; }
.mini-nav a[aria-current="page"] { color: var(--violet-dark); }
.mini-nav .nav-cta {
  padding: 8px 15px;
  border-radius: 999px;
  color: #fff !important;
  background: linear-gradient(90deg, var(--violet), var(--fuchsia));
}
.mini-nav .nav-cta:hover { text-decoration: none; }

.patterns-main {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 4px 20px 56px;
  flex: 1;
}
.pattern-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0 14px;
  color: #94a3b8;
  font-size: 12px;
}
.pattern-breadcrumb a { color: #64748b; }
.pattern-breadcrumb a:hover { color: var(--violet-dark); }

.pattern-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
  gap: 34px;
  align-items: center;
  padding: 22px 0 36px;
}
.pattern-eyebrow {
  margin: 0 0 10px;
  color: var(--violet-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.pattern-hero h1 {
  margin: 0;
  color: #0f172a;
  font-size: clamp(34px, 5.2vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}
.pattern-lede {
  max-width: 650px;
  margin: 16px 0 0;
  color: #64748b;
  font-size: 15px;
  line-height: 1.85;
}
.pattern-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.pattern-hero-actions a { padding: 10px 18px; }
.patterns-login-hint {
  margin: 14px 0 0;
  padding: 9px 12px;
  border: 1px solid #fde68a;
  border-radius: 10px;
  background: #fffbeb;
  color: #92400e;
  font-size: 12px;
  line-height: 1.6;
}
.patterns-login-hint a { color: #b45309; font-weight: 700; }

.pattern-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.pattern-stat {
  display: flex;
  min-height: 108px;
  flex-direction: column;
  justify-content: center;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 16px;
  background:
    radial-gradient(12rem 8rem at 100% 0%, rgba(245, 243, 255, 0.9), transparent 65%),
    #fff;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.035);
}
.pattern-stat strong {
  color: var(--violet-dark);
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.03em;
}
.pattern-stat span {
  margin-top: 8px;
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}
.pattern-stat small { margin-top: 3px; color: #94a3b8; font-size: 10px; }

.pattern-section { margin-top: 34px; }
.pattern-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.pattern-section-kicker {
  margin: 0 0 5px;
  color: #a78bfa;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.pattern-section-head h2 {
  margin: 0;
  color: #0f172a;
  font-size: 21px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.pattern-section-note { color: #94a3b8; font-size: 12px; }
.pattern-section-link { font-size: 12px; font-weight: 700; color: var(--violet-dark); }
.pattern-count-pill {
  display: inline-flex;
  align-items: center;
  margin-left: 5px;
  border-radius: 999px;
  background: #f5f3ff;
  padding: 3px 9px;
  color: var(--violet-dark);
  font-size: 11px;
  vertical-align: middle;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}
.category-card {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  border: 1px solid #e2e8f0;
  border-radius: 13px;
  background: #fff;
  padding: 9px 10px;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}
.category-card:hover {
  transform: translateY(-1px);
  border-color: #c4b5fd;
  box-shadow: 0 8px 20px rgba(76, 29, 149, 0.07);
}
.category-card.active { border-color: #a78bfa; background: #faf8ff; }
.category-icon {
  width: 40px;
  height: 40px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #f8fafc;
  color: var(--violet-dark);
  font-size: 18px;
  overflow: hidden;
}
.category-icon canvas { width: 38px; height: 38px; object-fit: contain; }
.category-copy { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.category-copy strong { color: #334155; font-size: 12px; font-weight: 700; }
.category-copy small { color: #94a3b8; font-size: 10px; }
.category-all .category-icon { background: #f5f3ff; }

.pattern-difficulty-section { margin-top: 26px; }
.difficulty-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.difficulty-chip {
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  padding: 6px 12px;
  color: #64748b;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.difficulty-chip:hover { border-color: #c4b5fd; color: var(--violet-dark); }
.difficulty-chip.active { border-color: #a78bfa; background: #f5f3ff; color: var(--violet-dark); }

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}
.pattern-card {
  min-width: 0;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}
.pattern-card:hover {
  transform: translateY(-2px);
  border-color: #c4b5fd;
  box-shadow: 0 14px 30px rgba(76, 29, 149, 0.09);
}
.pattern-card-link { display: block; color: inherit; }
.pattern-card-link:hover { text-decoration: none; }
.pattern-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  padding: 18px;
  overflow: hidden;
  background:
    radial-gradient(18rem 12rem at 50% 0%, rgba(245, 243, 255, 0.95), transparent 65%),
    #f8fafc;
}
.pattern-thumb canvas {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  display: block;
  filter: drop-shadow(0 5px 10px rgba(15, 23, 42, 0.08));
}
.pattern-card-body { padding: 11px 12px 12px; }
.pattern-card-title {
  margin: 0;
  color: #0f172a;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pattern-card-meta {
  margin: 5px 0 0;
  color: #94a3b8;
  font-size: 10px;
  line-height: 1.5;
}
.pattern-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-top: 9px;
}
.pattern-difficulty {
  border-radius: 999px;
  padding: 2px 7px;
  font-size: 9px;
  font-weight: 700;
}
.pattern-difficulty.easy { background: #ecfdf5; color: #047857; }
.pattern-difficulty.medium { background: #fef3c7; color: #b45309; }
.pattern-difficulty.hard { background: #fef2f2; color: #b91c1c; }
.pattern-open-label { color: var(--violet-dark); font-size: 10px; font-weight: 700; }

.pattern-filter {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding: 12px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
}
.pattern-search { flex: 1 1 260px; }
.pattern-search input {
  width: 100%;
  min-height: 38px;
  border: 1px solid #dbe3ee;
  border-radius: 10px;
  background: #fff;
  padding: 8px 11px;
  color: #0f172a;
  font: inherit;
  font-size: 13px;
}
.pattern-search input:focus { outline: none; border-color: #a78bfa; box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12); }
.pattern-filter-field { display: flex; align-items: center; gap: 6px; color: #94a3b8; font-size: 11px; }
.pattern-filter-field .ui-select { width: 145px; }
.pattern-filter-field .ui-select-trigger { min-height: 38px; }

.pattern-empty {
  margin-top: 18px;
  border: 1px dashed #cbd5e1;
  border-radius: 16px;
  padding: 44px 20px;
  text-align: center;
  color: #64748b;
}
.pattern-empty p { margin: 0 0 4px; color: #0f172a; font-size: 16px; font-weight: 800; }
.pattern-empty span { font-size: 12px; }
.pattern-more { display: flex; justify-content: center; margin-top: 20px; }
.pattern-more .btn-ghost { padding: 9px 22px; }

.pattern-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 40px;
  border: 1px solid #ddd6fe;
  border-radius: 20px;
  padding: 24px;
  background:
    radial-gradient(30rem 18rem at 100% 0%, rgba(252, 231, 243, 0.8), transparent 65%),
    linear-gradient(135deg, #faf5ff, #fff);
}
.pattern-cta h2 { margin: 0; color: #0f172a; font-size: 21px; letter-spacing: -0.02em; }
.pattern-cta p { max-width: 650px; margin: 8px 0 0; color: #64748b; font-size: 12px; line-height: 1.75; }
.pattern-cta-actions { display: flex; flex-wrap: wrap; gap: 8px; flex: none; }
.pattern-cta-actions a { padding: 9px 16px; }

@media (max-width: 1000px) {
  .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pattern-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .pattern-hero { grid-template-columns: 1fr; gap: 22px; padding-top: 12px; }
  .pattern-hero-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .pattern-stat { min-height: 88px; padding: 12px; }
  .pattern-stat strong { font-size: 19px; }
  .pattern-stat span { font-size: 10px; }
  .pattern-stat small { font-size: 9px; }
  .pattern-cta { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
  .patterns-main { padding: 0 14px 40px; }
  .pattern-hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pattern-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .pattern-thumb { padding: 10px; }
  .pattern-card-body { padding: 9px 10px 10px; }
  .pattern-card-meta { font-size: 9px; }
  .pattern-filter-field { flex: 1 1 100%; }
  .pattern-filter-field .ui-select { width: 100%; }
  .mini-nav { gap: 10px; }
  .mini-nav a { font-size: 12px; }
}
@media (max-width: 420px) {
  .category-copy strong { font-size: 11px; }
  .pattern-card-title { font-size: 12px; }
}