/* 浅色（默认） */
:root,
[data-theme="light"] {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-hover: #f0f4f8;
  --border: #e2e8f0;
  --text: #1a202c;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --success: #16a34a;
  --error: #dc2626;
  --tag-bg: rgba(37, 99, 235, 0.1);
  --tag-difficulty-bg: rgba(22, 163, 74, 0.1);
  --alert-error-bg: rgba(220, 38, 38, 0.08);
  --alert-error-border: rgba(220, 38, 38, 0.25);
  --alert-success-bg: rgba(22, 163, 74, 0.08);
  --alert-success-border: rgba(22, 163, 74, 0.25);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --input-bg: #ffffff;
  --radius: 10px;
}

/* 深色 */
[data-theme="dark"] {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-hover: #243044;
  --border: #2d3a4f;
  --text: #e8edf5;
  --text-muted: #8b9cb3;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --error: #ef4444;
  --tag-bg: rgba(59, 130, 246, 0.15);
  --tag-difficulty-bg: rgba(34, 197, 94, 0.15);
  --alert-error-bg: rgba(239, 68, 68, 0.12);
  --alert-error-border: rgba(239, 68, 68, 0.3);
  --alert-success-bg: rgba(34, 197, 94, 0.12);
  --alert-success-border: rgba(34, 197, 94, 0.3);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --input-bg: #0f1419;
}

/* 护眼色 */
[data-theme="eye-care"] {
  --bg: #e8f0e4;
  --surface: #f3f8f0;
  --surface-hover: #e5efe0;
  --border: #c5d8bc;
  --text: #2d3a28;
  --text-muted: #5a6b52;
  --accent: #4a7c59;
  --accent-hover: #3d6649;
  --success: #3d8b4f;
  --error: #c0392b;
  --tag-bg: rgba(74, 124, 89, 0.15);
  --tag-difficulty-bg: rgba(61, 139, 79, 0.15);
  --alert-error-bg: rgba(192, 57, 43, 0.08);
  --alert-error-border: rgba(192, 57, 43, 0.25);
  --alert-success-bg: rgba(61, 139, 79, 0.1);
  --alert-success-border: rgba(61, 139, 79, 0.25);
  --shadow: 0 4px 24px rgba(45, 58, 40, 0.08);
  --input-bg: #fafcf9;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.2s, color 0.2s;
}

main {
  flex: 1 0 auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
  transition: background 0.2s, border-color 0.2s;
  overflow: visible;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  height: 56px;
  flex-wrap: nowrap;
  overflow: visible;
}

.site-header .container.header-inner,
.site-header .header-inner {
  max-width: 1280px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: inherit;
  flex: 0 0 auto;
  max-width: 160px;
}

.brand-logo {
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  max-width: 36px;
  max-height: 36px;
  border-radius: 10px;
  flex-shrink: 0;
  display: block;
}

.brand-copy {
  display: flex;
  align-items: center;
  min-width: 0;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  line-height: 1;
  white-space: nowrap;
}

.nav-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  flex: 1 1 auto;
  flex-wrap: nowrap;
  min-width: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s, background 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.nav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-link:hover {
  color: var(--text);
  background: var(--surface-hover);
  text-decoration: none;
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #06b6d4));
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.22);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  flex-shrink: 0;
  position: relative;
  z-index: 120;
  overflow: visible;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo span {
  color: var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav {
  display: flex;
  gap: 1.25rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.15s;
  white-space: nowrap;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  text-decoration: none;
}

.theme-dropdown {
  position: relative;
  flex-shrink: 0;
}

.theme-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.65rem 0.4rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  min-width: 96px;
}

.theme-dropdown-trigger:hover,
.theme-dropdown.open .theme-dropdown-trigger {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.theme-trigger-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.theme-trigger-label {
  flex: 1;
  text-align: left;
}

.theme-chevron {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.2s;
}

.theme-dropdown.open .theme-chevron {
  transform: rotate(180deg);
}

.theme-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 200;
}

.theme-dropdown-menu[hidden] {
  display: none;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.theme-option:hover {
  background: var(--surface-hover);
}

.theme-option.active {
  background: var(--tag-bg);
  color: var(--accent);
  font-weight: 500;
}

.theme-option-icon {
  width: 18px;
  text-align: center;
  font-size: 0.95rem;
}

.lang-dropdown {
  position: relative;
  flex-shrink: 0;
}

.lang-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.78rem;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  max-width: 175px;
}

.lang-dropdown-trigger:hover,
.lang-dropdown.open .lang-dropdown-trigger {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.lang-trigger-label {
  flex: 1;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  max-height: 320px;
  overflow-y: auto;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 210;
}

.lang-dropdown-menu[hidden] {
  display: none !important;
}

.lang-dropdown.open .lang-dropdown-menu {
  display: block;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  font-size: 0.84rem;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  line-height: 1.35;
  white-space: nowrap;
}

.lang-option:hover {
  background: var(--surface-hover);
}

.lang-option.active {
  background: var(--tag-bg);
  color: var(--accent);
  font-weight: 500;
}

html[dir="rtl"] .lang-dropdown-menu,
html[dir="rtl"] .theme-dropdown-menu {
  right: auto;
  left: 0;
}

/* Hero */
.hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* Sections */
.section {
  padding: 2rem 0 3rem;
}

.section-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title a {
  font-size: 0.875rem;
  font-weight: 400;
}

/* Cards grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.15s, background 0.2s;
}

.card:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.card-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: var(--tag-bg);
  color: var(--accent);
}

.tag.difficulty {
  background: var(--tag-difficulty-bg);
  color: var(--success);
}

.tag.reverse {
  background: var(--tag-bg);
  color: var(--accent);
}

/* Tool card with link */
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link:hover {
  text-decoration: none;
}

/* Tools listing page */
.tools-page-top {
  display: grid;
  grid-template-columns: auto minmax(260px, 1fr) auto;
  align-items: center;
  gap: 1rem 1.25rem;
  margin-bottom: 0.45rem;
}

.tools-page-title {
  margin: 0;
  white-space: nowrap;
}

.tools-page .page-desc {
  margin-bottom: 1.25rem;
}

.tools-search-wrap {
  position: relative;
  width: min(100%, 460px);
  justify-self: center;
}

.tools-search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--text-muted);
  pointer-events: none;
}

.tools-search-input {
  width: 100%;
  padding: 0.65rem 2.4rem 0.65rem 2.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.92rem;
}

.tools-search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.tools-search-clear {
  position: absolute;
  right: 0.55rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.6rem;
  height: 1.6rem;
  border: none;
  border-radius: 999px;
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

.tools-search-clear:hover {
  color: var(--text);
}

.tools-result-count {
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
  justify-self: end;
}

.tools-category-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tools-category-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.tools-category-chip:hover {
  border-color: var(--accent);
  color: var(--text);
}

.tools-category-chip.active {
  background: var(--tag-bg);
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.35);
}

.tools-category-count {
  min-width: 1.2rem;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.06);
  font-size: 0.72rem;
  text-align: center;
}

.tools-category-chip.active .tools-category-count {
  background: rgba(37, 99, 235, 0.12);
}

.tools-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.tools-card-grid .tool-card.is-filtered-out,
.tools-card-grid .tool-card.is-paginated-out {
  display: none !important;
}

.tools-page-layout {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 180px);
}

.tools-page-main {
  flex: 1 1 auto;
}

.tools-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: auto;
  position: sticky;
  bottom: 0;
  z-index: 20;
  padding: 0.85rem 0.75rem;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.tools-page-btn {
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.tools-page-btn:hover:not(:disabled):not(.active) {
  border-color: var(--accent, #3b82f6);
  color: var(--accent, #3b82f6);
}

.tools-page-btn.active {
  background: var(--accent, #3b82f6);
  border-color: var(--accent, #3b82f6);
  color: #fff;
}

.tools-page-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.tools-page-ellipsis {
  color: var(--text-muted);
  padding: 0 0.2rem;
}

.tools-page-meta {
  margin-left: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.tool-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.tool-card-logo {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #fff;
}

.tool-card-logo svg {
  width: 26px;
  height: 26px;
}

.tool-card-body {
  min-width: 0;
  flex: 1;
}

.tool-card-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.4rem;
}

.tool-card-body h3 {
  font-size: 1rem;
  margin: 0;
  line-height: 1.35;
}

.tool-card-body p {
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.55;
  margin: 0;
}

.tool-card-category {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  font-size: 0.68rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--tag-bg);
  color: var(--accent);
  line-height: 1.4;
}

.tool-icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.tools-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.tools-empty-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-muted);
}

.tools-empty-icon svg {
  width: 28px;
  height: 28px;
}

.tool-icon-video { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-douyin { background: linear-gradient(135deg, #111827, #ec4899); }
.tool-icon-bilibili { background: linear-gradient(135deg, #60a5fa, #ec4899); }
.tool-icon-kuaishou { background: linear-gradient(135deg, #f97316, #ef4444); }
.tool-icon-xiaohongshu { background: linear-gradient(135deg, #ef4444, #f43f5e); }
.tool-icon-wechat { background: linear-gradient(135deg, #22c55e, #16a34a); }
.tool-icon-translate { background: linear-gradient(135deg, #8b5cf6, #6366f1); }
.tool-icon-python { background: linear-gradient(135deg, #2563eb, #f59e0b); }
.tool-icon-go { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }
.tool-icon-java { background: linear-gradient(135deg, #f97316, #dc2626); }
.tool-icon-c-lang { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-nodejs { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-csharp { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-php { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-cpp { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-json { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-header { background: linear-gradient(135deg, #0ea5e9, #0284c7); }
.tool-icon-cookie { background: linear-gradient(135deg, #a16207, #ca8a04); }
.tool-icon-html { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-html-markdown { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-html-json { background: linear-gradient(135deg, #f59e0b, #ca8a04); }
.tool-icon-url { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.tool-icon-link { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.tool-icon-diff { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-decode { background: linear-gradient(135deg, #64748b, #475569); }
.tool-icon-clock { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-lock { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-search-web { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.tool-icon-search-image { background: linear-gradient(135deg, #10b981, #059669); }
.tool-icon-search-video { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.tool-icon-image { background: linear-gradient(135deg, #ec4899, #db2777); }
.tool-icon-calculator { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-globe { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.tool-icon-text-image { background: linear-gradient(135deg, #f472b6, #a855f7); }
.tool-icon-watermark { background: linear-gradient(135deg, #38bdf8, #0284c7); }
.tool-icon-image-text { background: linear-gradient(135deg, #fb7185, #e11d48); }
.tool-icon-crop { background: linear-gradient(135deg, #34d399, #059669); }
.tool-icon-compress { background: linear-gradient(135deg, #fbbf24, #d97706); }
.tool-icon-grid-split { background: linear-gradient(135deg, #a78bfa, #7c3aed); }
.tool-icon-flip { background: linear-gradient(135deg, #60a5fa, #2563eb); }
.tool-icon-gif { background: linear-gradient(135deg, #f472b6, #ec4899); }
.tool-icon-convert { background: linear-gradient(135deg, #2dd4bf, #0d9488); }
.tool-icon-stitch { background: linear-gradient(135deg, #818cf8, #6366f1); }
.tool-icon-image-bg { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-html-image { background: linear-gradient(135deg, #14b8a6, #0f766e); }

.checkerboard-bg {
  background-color: #f8fafc;
  background-image:
    linear-gradient(45deg, #e2e8f0 25%, transparent 25%),
    linear-gradient(-45deg, #e2e8f0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e2e8f0 75%),
    linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.upload-zone-small {
  min-height: 88px;
  padding: 0.75rem;
}

.html-to-image-grid .html-to-image-frame {
  min-height: 360px;
  height: 360px;
}

.html-to-image-preview-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.tool-icon-qrcode { background: linear-gradient(135deg, #111827, #374151); }
.tool-icon-markdown { background: linear-gradient(135deg, #0ea5e9, #2563eb); }
.tool-icon-weather { background: linear-gradient(135deg, #38bdf8, #0284c7); }
.tool-icon-uuid { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-rgb { background: linear-gradient(135deg, #f43f5e, #8b5cf6); }
.tool-icon-random { background: linear-gradient(135deg, #22c55e, #16a34a); }
.tool-icon-base { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-sql { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-interest { background: linear-gradient(135deg, #10b981, #059669); }
.tool-icon-housing { background: linear-gradient(135deg, #ef4444, #dc2626); }
.tool-icon-data-unit { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-pdf-md { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-pdf-translate { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-pdf-extract { background: linear-gradient(135deg, #dc2626, #991b1b); }
.tool-icon-html-pdf { background: linear-gradient(135deg, #ea580c, #c2410c); }
.tool-icon-pdf-wm { background: linear-gradient(135deg, #fb7185, #e11d48); }
.tool-icon-pdf-img { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-img-pdf { background: linear-gradient(135deg, #fb923c, #ea580c); }
.tool-icon-pdf-word { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-word-pdf { background: linear-gradient(135deg, #2563eb, #1e40af); }
.tool-icon-pdf-ppt { background: linear-gradient(135deg, #f43f5e, #be123c); }
.tool-icon-ppt-pdf { background: linear-gradient(135deg, #e11d48, #9f1239); }
.tool-icon-pdf-split { background: linear-gradient(135deg, #a855f7, #7e22ce); }
.tool-icon-pdf-merge { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-jwt { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-mermaid { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-regex { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.tool-icon-cron { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-hash { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-password { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-calendar { background: linear-gradient(135deg, #0ea5e9, #0284c7); }
.tool-icon-mbti { background: linear-gradient(135deg, #ec4899, #be185d); }
.tool-icon-exif { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.tool-icon-bmi { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-lottery { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-worldtime { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-poker { background: linear-gradient(135deg, #ef4444, #991b1b); }
.tool-icon-format-convert { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.tool-icon-excel-md { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-excel-json { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-favicon { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-unit { background: linear-gradient(135deg, #f59e0b, #ea580c); }
.tool-icon-js-enc { background: linear-gradient(135deg, #f59e0b, #b45309); }
.tool-icon-js-mix { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-morse { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-barcode { background: linear-gradient(135deg, #111827, #374151); }
.tool-icon-unicode { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-ascii-codec { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-typing { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-rc4 { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-rabbit { background: linear-gradient(135deg, #f472b6, #db2777); }
.tool-icon-tripledes { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-escape { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.tool-icon-html-fmt { background: linear-gradient(135deg, #ea580c, #c2410c); }
.tool-icon-css-fmt { background: linear-gradient(135deg, #2563eb, #1d4ed8); }
.tool-icon-js-fmt { background: linear-gradient(135deg, #eab308, #ca8a04); }
.tool-icon-xml-fmt { background: linear-gradient(135deg, #059669, #047857); }
.tool-icon-py-fmt { background: linear-gradient(135deg, #0ea5e9, #0284c7); }
.tool-icon-playground { background: linear-gradient(135deg, #a855f7, #7c3aed); }

.tool-icon-py-run { background: linear-gradient(135deg, #2563eb, #f59e0b); }
.tool-icon-xpath { background: linear-gradient(135deg, #10b981, #059669); }
.tool-icon-article { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-pinyin { background: linear-gradient(135deg, #ec4899, #be185d); }
.tool-icon-rmb { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-websocket { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-browser { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-ico { background: linear-gradient(135deg, #f59e0b, #d97706); }
.tool-icon-http-status { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-doodle { background: linear-gradient(135deg, #f472b6, #ec4899); }
.tool-icon-capitals { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.tool-icon-currency { background: linear-gradient(135deg, #eab308, #ca8a04); }
.tool-icon-symbols { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-ua { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-ascii-table { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-ports { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-linux { background: linear-gradient(135deg, #111827, #374151); }
.tool-icon-content-type { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-dynasty { background: linear-gradient(135deg, #dc2626, #7c2d12); }
.tool-icon-date-diff { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-css-shadow { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-curl-builder { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-go-run { background: linear-gradient(135deg, #00add8, #007d9c); }
.tool-icon-java-run { background: linear-gradient(135deg, #f89820, #5382a1); }
.tool-icon-node-run { background: linear-gradient(135deg, #68a063, #3c873a); }
.tool-icon-c-run { background: linear-gradient(135deg, #5c6bc0, #3949ab); }
.tool-icon-cpp-run { background: linear-gradient(135deg, #00599c, #004482); }
.tool-icon-php-run { background: linear-gradient(135deg, #777bb4, #4f5b93); }
.tool-icon-csharp-run { background: linear-gradient(135deg, #68217a, #9b4dca); }
.tool-icon-java-fmt { background: linear-gradient(135deg, #ea580c, #c2410c); }
.tool-icon-go-fmt { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-csharp-fmt { background: linear-gradient(135deg, #9333ea, #6b21a8); }
.tool-icon-cpp-fmt { background: linear-gradient(135deg, #2563eb, #1e3a8a); }
.tool-icon-c-fmt { background: linear-gradient(135deg, #4f46e5, #312e81); }
.tool-icon-php-fmt { background: linear-gradient(135deg, #818cf8, #4338ca); }
.tool-icon-node-fmt { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-icmp-ping { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-whois { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-ssl-check { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-dnsbl { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-uptime { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-robots { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-redirect { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-sec-headers { background: linear-gradient(135deg, #10b981, #047857); }
.tool-icon-tls-scan { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-cert-expiry { background: linear-gradient(135deg, #eab308, #ca8a04); }
.tool-icon-batch-url { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.tool-icon-meta { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.tool-icon-gzip { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-resp-size { background: linear-gradient(135deg, #64748b, #475569); }
.tool-icon-sitemap { background: linear-gradient(135deg, #22c55e, #16a34a); }
.tool-icon-mixed { background: linear-gradient(135deg, #f43f5e, #be123c); }
.tool-icon-id-photo { background: linear-gradient(135deg, #3b82f6, #1e40af); }
.tool-icon-deobfuscate { background: linear-gradient(135deg, #8b5cf6, #5b21b6); }
.tool-icon-pyc { background: linear-gradient(135deg, #2563eb, #f59e0b); }
.tool-icon-name-art { background: linear-gradient(135deg, #ec4899, #a855f7); }
.tool-icon-audio { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-baby-name { background: linear-gradient(135deg, #f472b6, #db2777); }
.tool-icon-dns { background: linear-gradient(135deg, #38bdf8, #0284c7); }
.tool-icon-postal { background: linear-gradient(135deg, #fb923c, #ea580c); }
.tool-icon-file-hash { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-copybook { background: linear-gradient(135deg, #a78bfa, #7c3aed); }
.tool-icon-text-stats { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-text-dup { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-phone { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-tax { background: linear-gradient(135deg, #f97316, #c2410c); }
.tool-icon-periodic { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.tool-icon-csr { background: linear-gradient(135deg, #22c55e, #15803d); }
.tool-icon-crx { background: linear-gradient(135deg, #f59e0b, #ea580c); }
.tool-icon-paper { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.tool-icon-ascii-art { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-university { background: linear-gradient(135deg, #dc2626, #7c2d12); }
.tool-icon-world-university { background: linear-gradient(135deg, #0d9488, #1d4ed8); }
.tool-icon-tld { background: linear-gradient(135deg, #14b8a6, #0f766e); }
.tool-icon-video-transcript { background: linear-gradient(135deg, #f43f5e, #be123c); }
.tool-icon-china-map { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-world-map { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-usa-map { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-metro { background: linear-gradient(135deg, #22c55e, #15803d); }

.map-crumb-btn {
  border: 0;
  background: transparent;
  color: var(--primary, #2563eb);
  cursor: pointer;
  padding: 0;
  font: inherit;
}
.map-crumb-btn:hover { text-decoration: underline; }

.metro-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: 1rem;
}
@media (max-width: 900px) {
  .metro-layout { grid-template-columns: 1fr; }
}
.metro-side {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: min(70vh, 640px);
}
.metro-station-list {
  flex: 1;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.35rem;
  background: var(--bg, #fff);
}
.metro-station-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border: 0;
  background: transparent;
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-radius: 8px;
  cursor: pointer;
  color: inherit;
}
.metro-station-item:hover { background: rgba(37, 99, 235, 0.08); }
.metro-station-item i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.metro-station-item strong { flex: 1; font-size: 0.9rem; }
.metro-station-item span { font-size: 0.75rem; color: var(--muted, #64748b); }
.metro-main { min-width: 0; }

.md-cheatsheet {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.65rem;
  margin: 0 0 1rem;
}
.md-cheat-card {
  text-align: left;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: inherit;
  padding: 0.65rem 0.75rem;
  cursor: pointer;
  transition: border-color .15s, transform .15s;
}
.md-cheat-card:hover { border-color: var(--primary, #2563eb); transform: translateY(-1px); }
.md-cheat-card strong { display: block; margin-bottom: 0.35rem; font-size: 0.92rem; }
.md-cheat-card pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.72rem;
  line-height: 1.35;
  color: var(--muted, #64748b);
  max-height: 4.5rem;
  overflow: hidden;
}
.md-cheat-card span { display: block; margin-top: 0.35rem; font-size: 0.72rem; color: var(--primary, #2563eb); }

.map-tool-panel { padding: 1rem; }
.map-toolbar { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-bottom: 0.75rem; }
.map-breadcrumb { color: var(--muted, #64748b); font-size: 0.92rem; }
.map-search { min-width: 220px; flex: 1; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg, #fff); color: inherit; }
.map-chart { width: 100%; height: min(70vh, 640px); min-height: 420px; border: 1px solid var(--border); border-radius: 12px; background: #f8fafc; }
.map-legend { gap: 0.85rem; }
.map-legend-item { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.88rem; }
.map-legend-item i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.map-modal {
  position: fixed; inset: 0; z-index: 80;
  background: rgba(15, 23, 42, 0.45);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.map-modal[hidden] { display: none !important; }
.map-modal-card {
  width: min(720px, 100%);
  max-height: min(80vh, 640px);
  overflow: auto;
  background: var(--surface, #fff);
  border-radius: 14px;
  padding: 1rem 1.1rem 1.2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,.18);
}
.map-modal-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 0.85rem; }
.map-modal-header h3 { margin: 0; font-size: 1.05rem; }
.map-county-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.map-county-chip {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: #0f172a;
  font-size: 0.85rem;
  font-weight: 600;
}
.vt-input-compact {
  min-height: 3.2rem !important;
  max-height: 5.5rem;
  resize: vertical;
}

.md-workbench {
  position: relative;
}
.md-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  padding: 0.45rem 0.55rem;
  margin-bottom: 0.55rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f1f5f9;
}
.md-toolbar-sep {
  width: 1px;
  height: 22px;
  background: #cbd5e1;
  margin: 0 0.2rem;
}
.md-tool-btn {
  border: 0;
  background: transparent;
  color: #334155;
  min-width: 30px;
  height: 28px;
  padding: 0 0.45rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
}
.md-tool-btn:hover { background: #e2e8f0; }
.md-tool-btn.is-primary { color: #2563eb; background: #dbeafe; }
.md-status-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted, #64748b);
  margin-bottom: 0.45rem;
}
.md-work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}
.md-workbench[data-view="edit"] .md-preview-pane { display: none; }
.md-workbench[data-view="edit"] .md-work-grid { grid-template-columns: 1fr; }
.md-workbench[data-view="preview"] .md-edit-pane { display: none; }
.md-workbench[data-view="preview"] .md-work-grid { grid-template-columns: 1fr; }
.md-fullscreen {
  position: fixed;
  inset: 0.5rem;
  z-index: 90;
  background: var(--surface, #fff);
  padding: 0.75rem;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  overflow: auto;
}
.md-cheat-details {
  margin-top: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
}
.md-cheat-details summary { cursor: pointer; font-weight: 600; }
.rte-editor {
  min-height: 420px;
  max-height: 70vh;
  overflow: auto;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0 0 10px 10px;
  background: #fff;
  outline: none;
  line-height: 1.7;
}
.rte-editor:focus { border-color: #93c5fd; box-shadow: inset 0 0 0 1px rgba(37,99,235,.2); }
.rte-editor table { border-collapse: collapse; width: 100%; margin: 0.5rem 0; }
.rte-editor th, .rte-editor td { border: 1px solid #cbd5e1; padding: 0.35rem 0.5rem; }
@media (max-width: 900px) {
  .md-work-grid { grid-template-columns: 1fr; }
}
.tool-icon-rich-text { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.tool-icon-colorblind { background: linear-gradient(135deg, #ef4444, #22c55e); }
.tool-icon-clothing { background: linear-gradient(135deg, #f472b6, #db2777); }
.tool-icon-shoe { background: linear-gradient(135deg, #a16207, #ca8a04); }
.tool-icon-emoji { background: linear-gradient(135deg, #fbbf24, #f59e0b); }
.tool-icon-brain { background: linear-gradient(135deg, #8b5cf6, #6366f1); }
.tool-icon-stopwatch { background: linear-gradient(135deg, #0ea5e9, #0284c7); }
.tool-icon-ripemd { background: linear-gradient(135deg, #64748b, #475569); }
.tool-icon-blowfish { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.tool-icon-sm { background: linear-gradient(135deg, #dc2626, #b91c1c); }
.tool-icon-rc { background: linear-gradient(135deg, #6366f1, #4338ca); }
.tool-icon-caesar { background: linear-gradient(135deg, #78716c, #57534e); }
.tool-icon-gomoku { background: linear-gradient(135deg, #1f2937, #111827); }
.tool-icon-xiangqi { background: linear-gradient(135deg, #b45309, #92400e); }
.tool-icon-reaction { background: linear-gradient(135deg, #eab308, #ca8a04); }
.tool-icon-search-nav { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.tool-icon-matrix { background: linear-gradient(135deg, #052e16, #14532d); }
.tool-icon-ai-nav { background: linear-gradient(135deg, #7c3aed, #5b21b6); }
.tool-icon-audio-text { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.tool-icon-ocr { background: linear-gradient(135deg, #10b981, #059669); }
.tool-icon-video-dw { background: linear-gradient(135deg, #f97316, #ea580c); }
.tool-icon-video-audio { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.tool-icon-video-convert { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.tool-icon-video-compress { background: linear-gradient(135deg, #64748b, #334155); }
.tool-icon-video-frame { background: linear-gradient(135deg, #ec4899, #db2777); }
.tool-icon-video-wm { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.tool-icon-video-gif { background: linear-gradient(135deg, #a855f7, #9333ea); }
.tool-icon-audio-convert { background: linear-gradient(135deg, #22c55e, #16a34a); }
.tool-icon-avatar-frame { background: linear-gradient(135deg, #f43f5e, #e11d48); }
.tool-icon-pdf-encrypt { background: linear-gradient(135deg, #ef4444, #dc2626); }
.tool-icon-word-freq { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.tool-icon-toxic { background: linear-gradient(135deg, #57534e, #292524); }
.tool-icon-higheq { background: linear-gradient(135deg, #f472b6, #ec4899); }
.tool-icon-bank-cn { background: linear-gradient(135deg, #b91c1c, #991b1b); }
.tool-icon-bank-world { background: linear-gradient(135deg, #0284c7, #0369a1); }
.tool-icon-blood { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.tool-icon-idcard { background: linear-gradient(135deg, #0d9488, #0f766e); }
.tool-icon-quote { background: linear-gradient(135deg, #d97706, #b45309); }

/* Brain train & matrix rain */
.brain-train-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.brain-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  flex: 1;
  min-width: 200px;
}
.brain-mode-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.brain-mode-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.brain-mode-btn.active {
  background: linear-gradient(135deg, var(--accent), #6366f1);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}
.brain-hud {
  display: flex;
  gap: 0.65rem;
  flex-shrink: 0;
}
.brain-stat-card {
  min-width: 72px;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
}
.brain-stat-label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.brain-stat-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-top: 0.15rem;
}
.brain-score { font-size: 0.9rem; color: var(--text-muted); }
.brain-stage {
  min-height: 240px;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface) 0%, rgba(99, 102, 241, 0.06) 100%);
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.brain-train-actions { margin-top: 1rem; }
.brain-prompt { font-size: 1.05rem; margin-bottom: 0.75rem; }
.brain-wrong { color: #ef4444; }
.brain-seq { font-size: 1.6rem; letter-spacing: 0.2em; font-weight: 600; }
.brain-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.brain-grid-3 { display: grid; grid-template-columns: repeat(3, 48px); gap: 0.5rem; justify-content: center; margin: 0 auto; }
.brain-cell {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: 1.1rem;
  cursor: pointer;
}
.brain-cell.highlight { background: #fbbf24; border-color: #f59e0b; }
.brain-cell.picked { background: #22c55e; color: #fff; }
.brain-input { max-width: 200px; margin: 0.5rem auto; text-align: center; }
.brain-stroop { font-size: 2rem; font-weight: 700; margin: 1rem 0; }
.brain-target { font-size: 1.4rem; padding: 2rem; cursor: pointer; border-radius: var(--radius); background: rgba(99,102,241,0.1); }
.brain-target.ready { background: #22c55e; color: #fff; }
.matrix-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
}
.matrix-canvas {
  display: block;
  width: 100%;
  height: 360px;
}
.matrix-fs-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
}
.matrix-wrap:fullscreen .matrix-canvas,
.matrix-wrap:-webkit-full-screen .matrix-canvas { height: 100vh; }
.matrix-wrap:fullscreen .matrix-fs-btn,
.matrix-wrap:-webkit-full-screen .matrix-fs-btn {
  display: none !important;
}
.stopwatch-display {
  font-size: 2.5rem;
  font-variant-numeric: tabular-nums;
  text-align: center;
  padding: 1rem;
  letter-spacing: 0.05em;
}
.stopwatch-laps { margin-top: 0.75rem; font-size: 0.88rem; }
.reaction-pad {
  min-height: 160px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  background: var(--surface);
  border: 2px solid var(--border);
  user-select: none;
}
.reaction-pad.rt-wait { background: #fef08a; color: #713f12; border-color: #facc15; }
.reaction-pad.rt-go { background: #22c55e; color: #fff; border-color: #16a34a; }
.reaction-pad.rt-early { background: #ef4444; color: #fff; border-color: #dc2626; }
.reaction-pad.rt-done { background: #e0f2fe; color: #0c4a6e; border-color: #38bdf8; }
.reaction-pad.waiting { background: #fef08a; }
.reaction-pad.ready { background: #22c55e; color: #fff; }
.reaction-pad.too-soon { background: #ef4444; color: #fff; }
.emoji-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.emoji-category {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.emoji-cat-title {
  font-size: 0.95rem;
  margin: 0 0 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
}
.emoji-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.emoji-cell {
  font-size: 1.4rem;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.03);
  cursor: pointer;
  transition: transform 0.12s, border-color 0.12s, background 0.12s;
  line-height: 1;
}
.emoji-cell:hover {
  border-color: var(--accent);
  transform: scale(1.12);
  background: rgba(99, 102, 241, 0.08);
}
.emoji-cell.copied {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.15);
  transform: scale(1.05);
}
.emoji-grid button {
  font-size: 1.35rem;
  padding: 0.35rem;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
}
.emoji-grid button:hover { border-color: var(--accent); }
.nav-cards-grid, .ref-cards-grid, .bank-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
  margin-top: 0.75rem;
}
.nav-card, .ref-card {
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.nav-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}
.nav-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}
.nav-card-logo, .bank-card-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  flex-shrink: 0;
  background: #fff;
  border: 1px solid var(--border);
  padding: 2px;
}
.nav-card-logo-fallback, .bank-card-logo-fallback {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  opacity: 0.35;
}
.nav-card-body, .bank-card-body { flex: 1; min-width: 0; }
.nav-card-title, .bank-card-title { font-weight: 600; font-size: 0.95rem; line-height: 1.3; }
.nav-card-meta, .bank-card-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.2rem; }
.nav-card-desc, .bank-card-desc { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.35rem; line-height: 1.45; }
.bank-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.bank-card:hover {
  border-color: var(--accent);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
}
.bank-card-logo { width: 40px; height: 40px; }
.nav-card a { font-weight: 600; }
.quote-card {
  padding: 1.25rem;
  border-left: 4px solid var(--accent);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.quote-text { font-size: 1.1rem; line-height: 1.6; }
.quote-author { margin-top: 0.5rem; color: var(--text-muted); font-size: 0.88rem; }
.colorblind-panel { display: flex; flex-direction: column; gap: 1.5rem; }
.colorblind-section-title { font-size: 1.05rem; margin: 0 0 0.35rem; }
.colorblind-section-desc { font-size: 0.88rem; color: var(--text-muted); margin: 0 0 0.85rem; }
.colorblind-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 1rem;
}
.colorblind-plate {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.colorblind-plate-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; }
.colorblind-plate canvas {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px solid var(--border);
  display: block;
}
.colorblind-input {
  width: 100%;
  text-align: center;
  font-size: 0.88rem;
  padding: 0.35rem 0.5rem;
}
.colorblind-game {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.colorblind-game-hint { font-size: 0.88rem; color: var(--text-muted); margin: 0 0 0.75rem; }
.colorblind-target-chip {
  display: inline-block;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 4px;
  vertical-align: middle;
  margin: 0 0.2rem;
  border: 1px solid rgba(0,0,0,0.15);
}
.colorblind-swatch-row { display: flex; flex-wrap: wrap; gap: 0.65rem; justify-content: center; }
.colorblind-swatch {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  border: 2px solid rgba(255,255,255,0.5);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transition: transform 0.12s;
}
.colorblind-swatch:hover { transform: scale(1.08); }
.colorblind-result {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  border: 1px solid var(--border);
  background: var(--surface);
}
.colorblind-result-neutral { border-left: 4px solid var(--text-muted); }
.colorblind-result-warn { border-left: 4px solid #f59e0b; background: rgba(245, 158, 11, 0.08); }
.colorblind-result-ok { border-left: 4px solid #22c55e; background: rgba(34, 197, 94, 0.08); }
.xiangqi-panel { display: flex; flex-direction: column; gap: 0.85rem; }
.xiangqi-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1rem;
}
.xiangqi-select { min-width: 120px; }
.xiangqi-actions { margin-left: auto; }
.xiangqi-board-wrap { display: flex; justify-content: center; }
.xiangqi-board {
  display: block;
  max-width: min(540px, 92vw);
  height: auto;
  border-radius: 8px;
  box-shadow: 0 6px 24px rgba(92, 61, 30, 0.25);
}
.xiangqi-status {
  text-align: center;
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}
.chess-panel { display: flex; flex-direction: column; gap: 0.85rem; }
.chess-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1rem;
}
.chess-select { min-width: 120px; }
.chess-actions { margin-left: auto; }
.chess-board-wrap {
  display: flex;
  justify-content: center;
  padding: 0.25rem 0;
}
.chess-board {
  display: block;
  max-width: min(512px, 92vw);
  height: auto;
  border-radius: 10px;
  box-shadow:
    0 8px 28px rgba(40, 28, 16, 0.28),
    0 2px 8px rgba(40, 28, 16, 0.12);
}
.chess-status {
  text-align: center;
  font-size: 0.95rem;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--surface), rgba(181, 136, 99, 0.08));
  border: 1px solid var(--border);
}
.idcard-result-wrap { margin-top: 1rem; width: 100%; }
.idcard-result-card {
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--surface), rgba(13, 148, 136, 0.06));
  border-left: 4px solid #0d9488;
}
.idcard-result-head { display: flex; align-items: center; gap: 0.65rem; margin-bottom: 0.5rem; }
.idcard-code { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; }
.idcard-level { font-size: 0.75rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: rgba(13,148,136,0.15); color: #0f766e; }
.idcard-result-full { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.85rem; }
.idcard-breakdown { display: flex; flex-direction: column; gap: 0.45rem; }
.idcard-row {
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.4rem 0.55rem;
  border-radius: 6px;
  background: rgba(0,0,0,0.03);
  font-size: 0.88rem;
}
.idcard-label { color: var(--text-muted); }
.idcard-value { font-weight: 500; }
.idcard-subcode { font-size: 0.75rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.idcard-note { margin: 0.65rem 0 0; font-size: 0.8rem; color: var(--text-muted); }
.idcard-hint { color: var(--text-muted); font-size: 0.88rem; }
.game-board-wrap { display: flex; justify-content: center; margin: 0.5rem 0; }
.game-board-canvas {
  border: 2px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  max-width: 100%;
}
.media-preview { max-width: 100%; margin: 0.75rem 0; border-radius: var(--radius); }

.media-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.media-preview-grid label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.media-preview-grid video,
.media-preview-grid audio,
.media-preview-grid img {
  width: 100%;
  max-height: 320px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  object-fit: contain;
}

.media-preview-cell {
  min-width: 0;
}

.media-progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.75rem 0;
}

.media-progress-track {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

#fm-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 999px;
  transition: width 0.15s ease;
}

#fm-progress-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 5rem;
  text-align: right;
}

.media-frame-scrubber {
  width: 100%;
  margin: 0.5rem 0;
}

.media-frame-canvas-wrap {
  margin: 0.75rem 0;
}

#fm-frame-canvas {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.crop-preview-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
}

#fm-crop-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: var(--radius);
}

#fm-crop-overlay::before,
#fm-crop-overlay::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.45);
}

#fm-crop-overlay::before {
  top: 0;
  height: var(--crop-top, 0%);
}

#fm-crop-overlay::after {
  bottom: 0;
  height: var(--crop-bottom, 10%);
}

.avatar-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
  align-items: start;
}

#fm-canvas {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.word-freq-table { margin-top: 1rem; overflow-x: auto; }

.baby-name-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.baby-name-card {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.baby-name-card .name-main {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.baby-name-card .name-pinyin {
  margin-top: 0.25rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.baby-name-card .name-meaning {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  line-height: 1.45;
}

.baby-name-card .name-wuxing {
  margin-top: 0.45rem;
  font-size: 0.78rem;
  color: var(--accent);
}

.baby-name-card {
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.baby-name-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}

.baby-name-analysis {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.baby-name-analysis .bn-score-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.85rem;
}

.baby-name-analysis .bn-score {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
}

.baby-name-analysis .bn-score-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.baby-name-analysis .bn-char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.65rem;
  margin: 0.75rem 0;
}

.baby-name-analysis .bn-char-item {
  padding: 0.65rem 0.75rem;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 70%, var(--bg));
}

.baby-name-analysis .bn-char-item strong {
  font-size: 1.25rem;
  letter-spacing: 0.08em;
}

.baby-name-analysis .bn-char-meta {
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.baby-name-analysis .bn-char-meaning {
  margin-top: 0.35rem;
  font-size: 0.86rem;
  line-height: 1.4;
}

.baby-name-analysis .bn-tips {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text);
}

.baby-name-analysis .bn-tips li + li {
  margin-top: 0.25rem;
}

.dns-records-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.dns-records-table th, .dns-records-table td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.dns-records-table th { font-weight: 600; color: var(--text-muted); background: var(--surface); }
.dns-masked { color: var(--text-muted); font-style: italic; }

.file-hash-drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.file-hash-drop.dragover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }

.file-hash-item {
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.file-hash-item-name { font-weight: 600; margin-bottom: 0.5rem; word-break: break-all; }
.file-hash-row {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-family: var(--font-mono, monospace);
  font-size: 0.78rem;
  margin-top: 0.35rem;
  word-break: break-all;
}
.file-hash-row strong { min-width: 5.5rem; flex-shrink: 0; }

.copybook-preview-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  padding: 0.5rem;
}
.copybook-preview-wrap canvas { display: block; max-width: 100%; height: auto; margin: 0 auto; }

.net-probe-result {
  min-height: 200px;
  max-height: 520px;
  overflow: auto;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

  height: 420px;
  font-size: 0.92rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.CodeMirror-scroll {
  min-height: 420px;
}

.code-ide-stdin-label {
  display: block;
  margin: 0.6rem 0.85rem 0.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.code-ide-stdin {
  width: calc(100% - 1.7rem);
  margin: 0 0.85rem 0.6rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  resize: vertical;
}

.article-md-preview {
  margin-top: 0.75rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  line-height: 1.65;
  max-height: 480px;
  overflow: auto;
}

.article-md-preview h1,
.article-md-preview h2 {
  margin: 0.6rem 0 0.4rem;
}

.article-md-preview pre {
  overflow: auto;
  padding: 0.75rem;
  border-radius: 8px;
  background: var(--bg);
}

/* Reference / utility lookup tools */
.ref-tool .ref-table-wrap { overflow-x: auto; margin-top: 0.5rem; }
.ref-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.ref-table th, .ref-table td { padding: 0.55rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.ref-table th { font-weight: 600; color: var(--text-muted); background: var(--surface); position: sticky; top: 0; z-index: 1; }
.ref-table tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.ref-row-copy { cursor: pointer; }
.ref-code { display: inline-block; min-width: 2.5rem; padding: 0.15rem 0.5rem; border-radius: 6px; font-weight: 700; font-family: var(--font-mono, monospace); text-align: center; }
.ref-code-1xx { background: #dbeafe; color: #1d4ed8; }
.ref-code-2xx { background: #dcfce7; color: #15803d; }
.ref-code-3xx { background: #fef9c3; color: #a16207; }
.ref-code-4xx { background: #fee2e2; color: #b91c1c; }
.ref-code-5xx { background: #fce7f3; color: #be185d; }
.ref-tag { display: inline-block; padding: 0.1rem 0.45rem; border-radius: 999px; font-size: 0.78rem; background: var(--tag-bg); color: var(--accent); }
.ref-highlight { background: color-mix(in srgb, var(--accent) 28%, #fef08a); padding: 0 0.1rem; border-radius: 2px; }
.ref-note, .ref-empty { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.75rem; }
.ref-symbol { font-size: 1.1rem; }
.ref-symbol-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 0.45rem; margin-top: 0.75rem; }
.ref-symbol-cell {
  aspect-ratio: 1; display: grid; place-items: center; font-size: 1.35rem;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg);
  cursor: pointer; transition: transform .12s, border-color .12s, background .12s;
}
.ref-symbol-cell:hover { transform: translateY(-2px); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--input-bg)); }
.ref-ua-list { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 0.5rem; }
.ref-ua-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.85rem 1rem; background: var(--surface); }
.ref-ua-head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.ref-ua-text { display: block; word-break: break-all; font-size: 0.82rem; line-height: 1.55; color: var(--text-muted); }
.ref-ascii-char { font-family: var(--font-mono, monospace); font-weight: 600; text-align: center; }
.ref-cat-title { margin: 1.25rem 0 0.5rem; font-size: 1rem; color: var(--accent); }
.ref-cat-title:first-child { margin-top: 0; }
.ref-copy-btn { margin-left: auto; }
.ref-copy-toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(12px);
  padding: 0.55rem 1rem; border-radius: 999px; background: #111827; color: #fff; font-size: 0.88rem;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 9999;
}
.ref-copy-toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Doodle board */
.doodle-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem; margin-bottom: 0.75rem; }
.doodle-color-label, .doodle-size-label { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.9rem; color: var(--text-muted); }
.doodle-mode-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.doodle-canvas-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; touch-action: none; }
.doodle-canvas-wrap canvas { display: block; width: 100%; cursor: crosshair; background: #fff; }

/* Dynasty showcase */
.dynasty-page { padding-bottom: 2rem; }
.dynasty-hero {
  margin-bottom: 1.25rem; padding: 1.5rem 1.25rem; border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(135deg, color-mix(in srgb, #dc2626 12%, var(--surface)), color-mix(in srgb, #7c2d12 8%, var(--surface)));
  border: 1px solid color-mix(in srgb, #dc2626 18%, var(--border));
}
.dynasty-controls { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; margin-bottom: 1rem; }
.dynasty-search-wrap { flex: 1 1 240px; margin-bottom: 0; }
.dynasty-era-filter { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.dynasty-era-btn {
  padding: 0.35rem 0.75rem; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-muted); font-size: 0.85rem; cursor: pointer;
}
.dynasty-era-btn.active, .dynasty-era-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.dynasty-timeline {
  margin-bottom: 1.5rem; padding: 1rem 0.75rem 0.5rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
}
.dynasty-timeline-rail { position: relative; height: 28px; margin-bottom: 0.35rem; }
.dynasty-timeline-seg {
  position: absolute; top: 6px; height: 16px; border-radius: 4px; opacity: 0.88;
  box-shadow: 0 1px 3px rgba(0,0,0,.12); transition: transform .15s, opacity .15s;
}
.dynasty-timeline-seg:hover { transform: scaleY(1.15); opacity: 1; }
.dynasty-timeline-labels { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--text-muted); }
.dynasty-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem;
}
.dynasty-card {
  position: relative; overflow: hidden; border-radius: calc(var(--radius) + 2px);
  border: 1px solid var(--border); background: var(--surface);
  padding: 1rem 1rem 1.1rem; transition: transform .18s, box-shadow .18s;
}
.dynasty-card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px color-mix(in srgb, var(--dynasty-color, #dc2626) 18%, transparent); }
.dynasty-card-accent {
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--dynasty-color, #dc2626), color-mix(in srgb, var(--dynasty-color, #dc2626) 40%, #fff));
}
.dynasty-card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.25rem; }
.dynasty-name { margin: 0; font-size: 1.45rem; letter-spacing: 0.08em; color: var(--dynasty-color, var(--accent)); }
.dynasty-era { font-size: 0.78rem; padding: 0.12rem 0.5rem; border-radius: 999px; background: color-mix(in srgb, var(--dynasty-color, #dc2626) 12%, var(--surface)); color: var(--dynasty-color, var(--accent)); }
.dynasty-years { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0.6rem; font-family: var(--font-mono, monospace); }
.dynasty-intro { font-size: 0.92rem; line-height: 1.65; margin: 0 0 0.75rem; }
.dynasty-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 0.75rem; margin: 0 0 0.75rem; font-size: 0.86rem; }
.dynasty-meta dt { color: var(--text-muted); font-weight: 500; }
.dynasty-meta dd { margin: 0.1rem 0 0; }
.dynasty-section h4 { margin: 0 0 0.35rem; font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.dynasty-events { margin: 0; padding-left: 1.1rem; font-size: 0.86rem; line-height: 1.55; }
.dynasty-figures { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.dynasty-figure {
  padding: 0.2rem 0.55rem; border-radius: 999px; font-size: 0.82rem;
  background: color-mix(in srgb, var(--dynasty-color, #dc2626) 10%, var(--input-bg));
  border: 1px solid color-mix(in srgb, var(--dynasty-color, #dc2626) 22%, var(--border));
}
.dynasty-empty { grid-column: 1 / -1; text-align: center; color: var(--text-muted); padding: 2rem; }

.python-runner-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 900px) {
  .python-runner-layout { grid-template-columns: 1fr; }
}
.python-runner-output {
  min-height: 320px;
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88rem;
  white-space: pre-wrap;
  word-break: break-word;
  overflow: auto;
}
.python-runner-status { margin-left: 0.5rem; font-size: 0.9rem; }

.xpath-result-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 480px;
  overflow: auto;
}
.xpath-result-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 0.85rem;
  margin-bottom: 0.65rem;
  background: var(--input-bg);
}
.xpath-result-head { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.35rem; }
.xpath-text { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.35rem; }
.xpath-snippet {
  margin: 0;
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 120px;
  overflow: auto;
}

.article-extract-result { margin-top: 1rem; }

.websocket-log {
  min-height: 280px;
  max-height: 420px;
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  overflow: auto;
}

.browser-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.browser-info-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 0.85rem;
  background: var(--input-bg);
}
.browser-info-item dt {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.browser-info-item dd {
  margin: 0;
  font-size: 0.9rem;
  word-break: break-word;
}

.web-playground-layout {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.web-playground-editors {
  min-height: 320px;
}

.web-playground-preview {
  min-height: 360px;
}

.web-playground-preview .ide-preview-viewer {
  min-height: 320px;
}

.web-playground-preview .ide-preview-frame {
  min-height: 320px;
}

.web-playground-autorun {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

.barcode-preview-wrap {
  display: flex;
  justify-content: center;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  min-height: 120px;
}
.barcode-preview-wrap svg { max-width: 100%; height: auto; }

.typing-tool .typing-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
.typing-passage {
  font-size: 1.15rem;
  line-height: 1.8;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  margin-bottom: 1rem;
  min-height: 4rem;
}
.typing-char.typing-current { background: var(--accent); color: #fff; border-radius: 2px; }
.typing-char.typing-done { color: var(--success, #16a34a); }
.typing-char.typing-wrong { color: var(--error); text-decoration: line-through; }
.typing-input { font-size: 1.1rem; padding: 0.65rem 0.85rem; width: 100%; }

.color-tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 768px) { .color-tool-grid { grid-template-columns: 1fr; } }
.color-picker-row { display: flex; gap: 1rem; align-items: flex-start; flex-wrap: wrap; }
.color-canvas { width: 100%; max-width: 240px; border-radius: var(--radius); border: 1px solid var(--border); cursor: crosshair; touch-action: none; }
.color-field-row .input-with-btn { display: flex; gap: 0.5rem; }
.color-field-row .input-with-btn input { flex: 1; }
.color-palette-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 0.35rem 0 0.85rem; }
.color-swatch { width: 2.5rem; height: 2.5rem; border-radius: 8px; border: 1px solid var(--border); cursor: pointer; padding: 0; }
.palette-section label { font-size: 0.85rem; color: var(--text-muted); }
.contrast-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 0.75rem; }
@media (max-width: 640px) { .contrast-panel { grid-template-columns: 1fr; } }
.contrast-preview { padding: 1.25rem; border-radius: var(--radius); border: 1px solid var(--border); font-size: 1.25rem; font-weight: 600; text-align: center; }
.contrast-meta { display: flex; flex-direction: column; gap: 0.5rem; justify-content: center; }
.wcag-badge { display: inline-block; padding: 0.1rem 0.45rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500; margin-left: 0.25rem; }
.wcag-pass { background: rgba(34, 197, 94, 0.15); color: #16a34a; }
.wcag-fail { background: rgba(239, 68, 68, 0.15); color: #dc2626; }
.format-convert-split { min-height: 360px; }
.excel-convert-split { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; min-height: 360px; }
.excel-output-textarea { min-height: 320px; font-family: "JetBrains Mono", ui-monospace, monospace; }
.excel-md-preview { min-height: 320px; overflow: auto; }
.upload-hint { margin: 0.35rem 0 0; font-size: 0.85rem; color: var(--text-muted); }
@media (max-width: 900px) {
  .excel-convert-split { grid-template-columns: 1fr; }
}
.format-detected { padding: 0.55rem 0.75rem; border-radius: var(--radius); background: var(--input-bg); border: 1px solid var(--border); font-size: 0.9rem; }
.favicon-drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 2rem; text-align: center; cursor: pointer; transition: border-color 0.2s, background 0.2s; }
.favicon-drop-zone.drag-over { border-color: var(--accent); background: rgba(59, 130, 246, 0.06); }
.favicon-preview-grid { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 0.5rem; }
.favicon-preview-item { text-align: center; }
.favicon-preview-item canvas { border: 1px solid var(--border); border-radius: 6px; image-rendering: auto; }
.favicon-preview-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.35rem; }
.input-with-btn { display: flex; gap: 0.5rem; align-items: flex-start; }
.input-with-btn textarea { flex: 1; }

/* EXIF / image info tool */
.exif-preview-wrap { display: flex; flex-wrap: wrap; gap: 1.25rem; margin: 1rem 0; align-items: flex-start; }
.exif-preview-wrap img { max-width: 320px; max-height: 260px; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
.imginfo-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; margin: 1rem 0; }
.imginfo-card {
  padding: 0.85rem 1rem; border-radius: var(--radius);
  background: var(--input-bg); border: 1px solid var(--border);
}
.imginfo-card .imginfo-label { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.imginfo-card .imginfo-value { font-size: 1rem; font-weight: 600; word-break: break-word; }
.imginfo-section { margin-top: 1.25rem; }
.imginfo-section-title {
  font-size: 0.95rem; font-weight: 600; margin-bottom: 0.65rem;
  padding-bottom: 0.35rem; border-bottom: 1px solid var(--border);
}
.exif-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-top: 0.5rem; }
.exif-table th, .exif-table td { border: 1px solid var(--border); padding: 0.45rem 0.65rem; text-align: left; word-break: break-word; }
.exif-table th { background: var(--input-bg); }
.exif-table tr.exif-sensitive { background: rgba(239, 68, 68, 0.08); }
.exif-table tr.exif-sensitive td:first-child { color: #ef4444; font-weight: 600; }
.exif-note { margin-top: 0.75rem; padding: 0.75rem 1rem; border-radius: var(--radius); background: var(--input-bg); border: 1px solid var(--border); font-size: 0.88rem; color: var(--text-muted); }
.exif-empty { font-size: 0.88rem; color: var(--text-muted); padding: 0.5rem 0; }

/* Text stats */
.text-stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem; margin-top: 1rem; }
.text-stats-card {
  padding: 1rem; border-radius: var(--radius); text-align: center;
  background: var(--input-bg); border: 1px solid var(--border);
}
.text-stats-card .ts-value { font-size: 1.65rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.text-stats-card .ts-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.35rem; }

/* Text duplicates */
.dup-table-wrap { overflow-x: auto; margin-top: 0.75rem; }
.dup-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.dup-table th, .dup-table td { border: 1px solid var(--border); padding: 0.45rem 0.65rem; text-align: left; }
.dup-table th { background: var(--input-bg); }
.dup-table tbody tr:nth-child(even) { background: rgba(0, 0, 0, 0.02); }

/* Income tax */
.tax-bracket-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; margin-top: 0.75rem; }
.tax-bracket-table th, .tax-bracket-table td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; text-align: left; }
.tax-bracket-table th { background: var(--input-bg); }
.tax-bracket-table tr.tax-active { background: rgba(99, 102, 241, 0.12); font-weight: 600; }
.tax-result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.75rem; margin-top: 1rem; }

/* Tool sub-tabs */
.tool-subtabs { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.tool-subtab {
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text-muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tool-subtab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.tool-subtab-panel[hidden] { display: none !important; }

/* Lottery wheel */
.lottery-wheel-wrap { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.lottery-wheel-wrap canvas { max-width: 100%; border-radius: 50%; box-shadow: var(--shadow); }
.lottery-result { font-size: 1.1rem; font-weight: 600; color: var(--accent); min-height: 1.5rem; text-align: center; }
.lottery-dice-row { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; margin: 1rem 0; }
.lottery-die {
  width: 56px; height: 56px; border-radius: 10px;
  background: var(--input-bg); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; font-weight: 700;
}
.lottery-coin {
  width: 100px; height: 100px; border-radius: 50%;
  background: linear-gradient(135deg, #fbbf24, #d97706);
  color: #78350f; font-size: 1.25rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 1rem auto; box-shadow: var(--shadow);
  transition: transform 0.4s ease;
}
.lottery-coin.flipping { transform: rotateY(360deg); }

/* World time */
.worldtime-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.75rem; margin-top: 1rem; }
.worldtime-card {
  padding: 0.85rem 1rem; border-radius: var(--radius);
  background: var(--input-bg); border: 1px solid var(--border);
}
.worldtime-card strong { display: block; margin-bottom: 0.25rem; }
.worldtime-card .wt-time { font-size: 1.15rem; font-weight: 600; color: var(--accent); }
.worldtime-card .wt-dst { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.2rem; }

/* Date diff */
.date-diff-meta { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; margin: 0.75rem 0; font-size: 0.95rem; }
.date-diff-meta .dd-meta-item strong { color: var(--accent); }
.date-diff-summary { font-size: 1.05rem; margin: 0.5rem 0 1rem; color: var(--text); }
.date-diff-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem; }
.date-diff-card {
  padding: 1rem; border-radius: var(--radius); text-align: center;
  background: var(--input-bg); border: 1px solid var(--border);
}
.date-diff-card .dd-card-value { font-size: 1.75rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.date-diff-card .dd-card-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.35rem; }

/* CSS shadow */
.css-shadow-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: start; }
@media (max-width: 768px) { .css-shadow-layout { grid-template-columns: 1fr; } }
.css-shadow-preview-wrap {
  display: flex; align-items: center; justify-content: center; min-height: 220px;
  padding: 2rem; border-radius: var(--radius); background: var(--input-bg); border: 1px dashed var(--border);
}
.css-shadow-preview {
  width: 120px; height: 120px; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--border);
}
.slider-val { float: right; font-size: 0.85rem; color: var(--text-muted); font-family: var(--font-mono, monospace); }

/* Curl builder */
.curl-builder-response { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--border); }

.poker-rank-card {
  padding: 0.85rem 1rem; margin-bottom: 0.65rem; border-radius: var(--radius);
  background: var(--input-bg); border: 1px solid var(--border);
}
.poker-rank-card h3 { margin: 0 0 0.35rem; font-size: 1rem; }
.poker-glossary-list { max-height: 480px; overflow-y: auto; margin-top: 0.75rem; }
.poker-glossary-item { padding: 0.55rem 0; border-bottom: 1px solid var(--border); }
.poker-glossary-item:last-child { border-bottom: none; }
.poker-glossary-item strong { color: var(--accent); }
.poker-rules-block { margin-bottom: 1.25rem; }
.poker-rules-block h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.poker-rules-block p, .poker-rules-block ul { font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; }

.jwt-claims-meta { display: grid; gap: 0.5rem; margin-top: 0.75rem; }
.jwt-claim-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; font-size: 0.9rem; }
.jwt-claim-label { color: var(--text-muted); min-width: 3rem; }
.jwt-status { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.8rem; font-weight: 500; }
.jwt-status-valid { background: rgba(34, 197, 94, 0.15); color: #16a34a; }
.jwt-status-expired { background: rgba(239, 68, 68, 0.15); color: #dc2626; }
.jwt-status-pending { background: rgba(245, 158, 11, 0.15); color: #d97706; }
.jwt-verify-result { margin-top: 0.75rem; font-size: 0.9rem; }
.jwt-code-block { min-height: 120px; font-family: var(--font-mono, monospace); font-size: 0.85rem; white-space: pre-wrap; word-break: break-all; padding: 0.85rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); }

.mermaid-editor-grid { min-height: 480px; }
.mermaid-preview-wrap { min-height: 420px; padding: 1rem; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); }
.mermaid-preview-empty { color: var(--text-muted); font-size: 0.9rem; }

.regex-highlight-box { min-height: 120px; padding: 0.85rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); font-family: var(--font-mono, monospace); font-size: 0.9rem; white-space: pre-wrap; word-break: break-word; line-height: 1.6; }
.regex-match { background: rgba(34, 197, 94, 0.25); border-radius: 2px; }
.regex-group { background: rgba(59, 130, 246, 0.25); border-radius: 2px; }
.regex-token-flow { display: flex; flex-wrap: wrap; gap: 0.45rem; align-items: center; margin-top: 0.5rem; }
.regex-token-chip { display: inline-flex; align-items: center; padding: 0.2rem 0.55rem; border-radius: 999px; font-size: 0.78rem; font-family: var(--font-mono, monospace); border: 1px solid var(--border); background: var(--surface); }
.regex-token-chip.quantifier { border-color: #a855f7; color: #7c3aed; }
.regex-token-chip.group { border-color: #3b82f6; color: #2563eb; }
.regex-token-chip.charset { border-color: #f59e0b; color: #d97706; }
.regex-token-chip.anchor { border-color: #64748b; color: #475569; }
.regex-token-arrow { color: var(--text-muted); font-size: 0.75rem; }
.regex-match-list { margin: 0; padding-left: 1.2rem; font-size: 0.88rem; }
.regex-match-list li { margin-bottom: 0.35rem; word-break: break-all; }

.regex-cheat { margin-top: 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.regex-cheat-toggle { padding: 0.75rem 1rem; font-weight: 600; font-size: 0.95rem; cursor: pointer; list-style: none; }
.regex-cheat-toggle::-webkit-details-marker { display: none; }
.regex-cheat[open] .regex-cheat-toggle { border-bottom: 1px solid var(--border); }
.regex-cheat-body { padding: 0.85rem 1rem 1rem; font-size: 0.88rem; }
.regex-cheat-section { margin-bottom: 1rem; }
.regex-cheat-section:last-child { margin-bottom: 0; }
.regex-cheat-section h3 { margin: 0 0 0.45rem; font-size: 0.9rem; color: var(--text-muted); font-weight: 600; }
.regex-cheat-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.regex-cheat-table th, .regex-cheat-table td { border: 1px solid var(--border); padding: 0.4rem 0.55rem; text-align: left; vertical-align: top; }
.regex-cheat-table th { background: var(--input-bg); font-weight: 600; white-space: nowrap; }
.regex-cheat-table code { font-family: var(--font-mono, monospace); font-size: 0.82rem; }
.regex-cheat-recipes { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.regex-cheat-recipe { display: inline-flex; align-items: center; padding: 0.3rem 0.65rem; border: 1px solid var(--border); border-radius: 999px; background: var(--input-bg); font-size: 0.82rem; font-family: var(--font-mono, monospace); cursor: pointer; transition: border-color 0.15s, background 0.15s; }
.regex-cheat-recipe:hover { border-color: var(--accent); background: rgba(59, 130, 246, 0.06); }

.cron-next-list { margin: 0.5rem 0 0; padding-left: 1.2rem; font-size: 0.9rem; }
.cron-next-list li { margin-bottom: 0.35rem; }
.cron-desc-box { padding: 0.85rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); font-size: 0.92rem; }
.cron-cheat-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-top: 0.75rem; }
.cron-cheat-table th, .cron-cheat-table td { border: 1px solid var(--border); padding: 0.5rem 0.65rem; text-align: left; }
.cron-cheat-table th { background: var(--surface); }

.pwd-strength-bar { height: 8px; border-radius: 999px; background: var(--border); overflow: hidden; margin-top: 0.35rem; }
.pwd-strength-fill { height: 100%; width: 0; border-radius: 999px; transition: width 0.25s ease; background: #ef4444; }
.pwd-strength-fill.pwd-strength-1 { background: #f97316; }
.pwd-strength-fill.pwd-strength-2 { background: #eab308; }
.pwd-strength-fill.pwd-strength-3 { background: #84cc16; }
.pwd-strength-fill.pwd-strength-4 { background: #22c55e; }
.pwd-strength-fill.pwd-strength-5 { background: #16a34a; }
.pwd-strength-label { font-size: 0.85rem; color: var(--text-muted); }

.calendar-header { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.calendar-title { flex: 1; margin: 0; font-size: 1.25rem; text-align: center; min-width: 8rem; }
.calendar-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.35rem; margin-bottom: 0.35rem; text-align: center; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.35rem; }
.calendar-cell { display: flex; flex-direction: column; align-items: center; justify-content: flex-start; min-height: 4.5rem; padding: 0.35rem 0.25rem; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); cursor: pointer; font: inherit; color: inherit; transition: border-color 0.15s, box-shadow 0.15s; }
.calendar-cell:hover { border-color: var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.calendar-cell-empty { border: none; background: transparent; cursor: default; min-height: 0; }
.cal-day-num { font-weight: 600; font-size: 0.95rem; }
.cal-day-sub { font-size: 0.68rem; color: var(--text-muted); margin-top: 0.1rem; }
.cal-day-tag { font-size: 0.62rem; color: #dc2626; margin-top: 0.15rem; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.calendar-cell.cal-weekend { background: rgba(59, 130, 246, 0.06); }
.calendar-cell.cal-holiday { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.35); }
.calendar-cell.cal-holiday .cal-day-num { color: #dc2626; }
.calendar-cell.cal-festival .cal-day-tag { color: #ea580c; }
.calendar-cell.cal-workday { background: rgba(245, 158, 11, 0.08); }
.calendar-cell.cal-today { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2); }
.calendar-legend { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1rem 0; font-size: 0.82rem; }
.cal-legend-item { padding: 0.15rem 0.55rem; border-radius: 999px; border: 1px solid var(--border); }
.cal-legend-weekend { background: rgba(59, 130, 246, 0.08); }
.cal-legend-holiday { background: rgba(239, 68, 68, 0.1); color: #dc2626; }
.cal-legend-festival { background: rgba(234, 88, 12, 0.1); color: #ea580c; }
.cal-legend-workday { background: rgba(245, 158, 11, 0.1); }
.calendar-detail { margin-top: 1rem; padding: 1rem 1.15rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); }
.calendar-detail h3 { margin: 0 0 0.65rem; font-size: 1.05rem; }
.calendar-detail p { margin: 0.35rem 0; font-size: 0.92rem; }
.calendar-detail-placeholder { color: var(--text-muted); margin: 0; }

.mbti-progress-wrap { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem; }
.mbti-progress-bar { flex: 1; height: 8px; border-radius: 999px; background: var(--border); overflow: hidden; }
.mbti-progress-fill { height: 100%; background: linear-gradient(90deg, #8b5cf6, #ec4899); transition: width 0.3s ease; }
.mbti-progress-text { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; }
.mbti-question { font-size: 1.05rem; font-weight: 500; margin-bottom: 1rem; }
.mbti-options { display: grid; gap: 0.65rem; }
.mbti-option { display: block; width: 100%; text-align: left; padding: 0.85rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); cursor: pointer; font: inherit; color: inherit; transition: border-color 0.15s, background 0.15s; }
.mbti-option:hover { border-color: var(--accent); background: rgba(59, 130, 246, 0.06); }
.mbti-result-card { padding: 1.25rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--input-bg); }
.mbti-type { margin: 0 0 0.5rem; font-size: 1.5rem; color: var(--accent); }
.mbti-summary { font-size: 1rem; margin-bottom: 1rem; }
.mbti-result-section { margin-bottom: 0.85rem; font-size: 0.92rem; }
.mbti-result-section p { margin: 0.25rem 0 0; color: var(--text-muted); }

.pdf-md-preview {
  min-height: 220px;
  max-height: 420px;
  overflow: auto;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
}

.pdf-meta-box {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--input-bg);
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.85rem;
}

.pdf-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.pdf-image-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.pdf-image-card img {
  width: 100%;
  display: block;
  background: #fff;
}

.pdf-image-actions {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.65rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pdf-file-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 0.75rem 0 1rem;
}

.pdf-file-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  font-size: 0.9rem;
}

.brand:hover { text-decoration: none; }

.weather-card {
  margin-top: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
}

.weather-main {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
}

.weather-main span { font-size: 1.2rem; }

.weather-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.weather-meta div { background: var(--surface); border-radius: 8px; padding: 0.65rem; }
.weather-meta dt { font-size: 0.75rem; color: var(--text-muted); }
.weather-meta dd { font-weight: 600; margin-top: 0.15rem; }

.weather-forecast { margin-top: 1rem; padding-left: 1.1rem; color: var(--text-muted); }

.rgb-preview-box {
  min-height: 220px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.calc-result-box {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: var(--input-bg);
  border: 1px solid var(--border);
}

.calc-result-box strong { color: var(--accent); }

/* Form */
.tool-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: background 0.2s, border-color 0.2s;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}

.form-group textarea,
.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
  transition: background 0.2s, border-color 0.2s;
}

.form-group textarea:focus,
.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Result */
.result-panel {
  margin-top: 1.5rem;
  display: none;
}

.result-panel.visible {
  display: block;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 1rem;
}

.result-header h3 {
  font-size: 1rem;
}

.result-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.videodl-options {
  margin-bottom: 0.25rem;
}

.videodl-thumb-wrap {
  margin-top: 1rem;
  border-radius: 8px;
  overflow: hidden;
  background: #111;
}

.videodl-thumb-wrap img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  display: block;
}

.videodl-hint {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.result-grid {
  display: grid;
  gap: 0.75rem;
}

.result-item {
  display: flex;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.result-item .label {
  color: var(--text-muted);
  min-width: 72px;
  flex-shrink: 0;
}

.result-item .value {
  word-break: break-all;
}

.video-preview {
  margin-top: 1rem;
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}

.video-preview video {
  width: 100%;
  max-height: 400px;
  display: block;
}

.note-gallery-wrap {
  margin-top: 1.25rem;
}

.note-gallery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.note-gallery-count {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.note-gallery-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.note-gallery {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.6rem;
}

.note-gallery-item {
  position: relative;
  display: block;
  width: 100%;
  height: 96px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #111;
  cursor: pointer;
  font: inherit;
  color: inherit;
  appearance: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.note-gallery-item:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.note-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  user-select: none;
}

.note-gallery-badge {
  position: absolute;
  top: 0.3rem;
  left: 0.3rem;
  z-index: 2;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 0.68rem;
  line-height: 1.25rem;
  text-align: center;
}

body.lightbox-open {
  overflow: hidden;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.image-lightbox[hidden] {
  display: none !important;
}

.image-lightbox.open {
  display: flex;
  visibility: visible;
  pointer-events: auto;
}

.image-lightbox:not(.open) {
  visibility: hidden;
  pointer-events: none;
}

.image-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
}

.image-lightbox-dialog {
  position: relative;
  z-index: 1;
  width: min(1100px, 100%);
  max-height: calc(100vh - 3rem);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.image-lightbox-close,
.image-lightbox-nav {
  position: absolute;
  z-index: 2;
  border: none;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.image-lightbox-close:hover,
.image-lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.24);
}

.image-lightbox-close {
  top: -0.25rem;
  right: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  font-size: 1.5rem;
  line-height: 1;
}

.image-lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  font-size: 1.75rem;
  line-height: 1;
}

.image-lightbox-prev {
  left: -3.25rem;
}

.image-lightbox-next {
  right: -3.25rem;
}

.image-lightbox-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  max-height: calc(100vh - 8rem);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.45);
}

.image-lightbox-stage img {
  max-width: 100%;
  max-height: calc(100vh - 8rem);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.image-lightbox-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.image-lightbox-counter {
  color: #fff;
  font-size: 0.95rem;
  min-width: 4.5rem;
  text-align: center;
}

.image-lightbox-toolbar .btn {
  min-width: 7rem;
}

@media (max-width: 1100px) {
  .image-lightbox-prev {
    left: 0.5rem;
  }

  .image-lightbox-next {
    right: 0.5rem;
  }
}

@media (max-width: 900px) {
  .note-gallery {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .note-gallery-item {
    height: 72px;
  }
}

@media (max-width: 560px) {
  .note-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .note-gallery-item {
    height: 68px;
  }

  .note-gallery-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .image-lightbox {
    padding: 0.75rem;
  }
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
}

.alert-error {
  background: var(--alert-error-bg);
  color: var(--error);
  border: 1px solid var(--alert-error-border);
}

.alert-success {
  background: var(--alert-success-bg);
  color: var(--success);
  border: 1px solid var(--alert-success-border);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.35);
  margin: 0.75rem 0;
}

.idphoto-bg-presets { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.idphoto-bg-btn {
  min-width: 2.5rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
}
.idphoto-bg-btn.active { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25); }
.idphoto-preview-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-start; }
.idphoto-canvas { max-width: 100%; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.idphoto-sheet-canvas { flex: 1 1 420px; }

.nameart-canvas {
  display: block;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.audioclip-waveform {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.audioclip-player { width: 100%; margin: 0.75rem 0; }

.checkbox-label { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; cursor: pointer; }

/* Footer */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  margin-top: auto;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  background: var(--surface);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.footer-brand {
  margin: 0;
  line-height: 1.5;
}

.footer-contact {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.92;
  line-height: 1.45;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.page-desc {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-row {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
}

.form-group-grow {
  flex: 1;
}

.form-group-sm {
  width: 110px;
  flex-shrink: 0;
}

.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-group-inline {
  margin-bottom: 1rem;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input {
  width: auto;
}

.result-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.article-list {
  display: grid;
  gap: 0.85rem;
}

.article-card {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s;
}

.article-card:hover {
  border-color: var(--accent);
}

.article-index {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--tag-bg);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.article-title {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  line-height: 1.45;
}

.article-title a {
  color: var(--text);
  text-decoration: none;
}

.article-title a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.article-summary {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.55rem;
  line-height: 1.55;
}

.article-meta {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.translate-results {
  display: grid;
  gap: 1rem;
}

.translate-results-group {
  display: grid;
  gap: 0.85rem;
}

.translate-promo {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--tag-bg);
}

.translate-promo-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
}

.translate-promo-link:hover {
  text-decoration: underline;
}

.translate-results-failed {
  display: grid;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

.translate-failed-title {
  font-size: 0.9rem;
  color: var(--error);
  font-weight: 600;
}

.translate-card {
  padding: 1rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.translate-card-error {
  border-color: rgba(220, 38, 38, 0.25);
}

.translate-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.translate-card-header h3 {
  font-size: 0.95rem;
}

.translate-text {
  font-size: 0.95rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.translate-error {
  font-size: 0.875rem;
  color: var(--error);
}

@media (max-width: 720px) {
  .form-row {
    flex-direction: column;
    align-items: stretch;
  }

  .form-group-sm {
    width: 100%;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .nav {
    gap: 0.75rem;
  }
}

@media (max-width: 1100px) {
  .html-md-triple-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .html-md-triple-grid .curl-source-editor,
  .markdown-output-pane,
  .markdown-preview-pane .markdown-preview-body {
    min-height: 320px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    gap: 0.65rem;
  }

  .nav-link span {
    font-size: 0.86rem;
  }
}

@media (max-width: 768px) {
  .nav a {
    font-size: 0.85rem;
  }
}

@media (max-width: 640px) {
  .header-inner {
    gap: 0.5rem;
  }

  .nav-pills {
    justify-content: flex-end;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav-pills::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    padding: 0.4rem 0.7rem;
  }

  .nav-link svg {
    display: none;
  }
}

/* DevTools */
.devtools-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.btn-secondary {
  background: var(--surface-hover);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

.code-output {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.875rem;
  line-height: 1.55;
}

.html-preview {
  width: 100%;
  min-height: 320px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.container-wide {
  max-width: 1280px;
}

.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: stretch;
}

.split-panel-left,
.split-panel-right {
  display: flex;
  flex-direction: column;
  min-height: 520px;
}

.split-fill {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.split-textarea {
  flex: 1;
  min-height: 420px;
  resize: vertical;
}

.split-preview,
.crypto-results,
.base64-preview-wrap {
  flex: 1;
  min-height: 420px;
}

.split-preview {
  min-height: 420px;
}

.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.mode-option {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  cursor: pointer;
}

.crypto-results {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  padding: 0.75rem;
  display: grid;
  gap: 0.75rem;
}

.crypto-result-card {
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.crypto-result-card-error {
  border-color: rgba(220, 38, 38, 0.25);
}

.crypto-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.crypto-result-text {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.55;
}

.crypto-result-error {
  font-size: 0.85rem;
  color: var(--error);
}

.crypto-empty,
.base64-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--bg);
  transition: border-color 0.2s, background 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  background: var(--tag-bg);
}

.upload-title {
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.upload-tip {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.base64-preview-wrap {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 1rem;
}

.base64-preview {
  max-width: 100%;
  max-height: 100%;
  display: none;
}

.base64-meta {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.img-upload-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.img-upload-item {
  position: relative;
  width: 88px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--input-bg);
}

.img-upload-item img {
  display: block;
  width: 100%;
  height: 72px;
  object-fit: cover;
}

.img-upload-index {
  position: absolute;
  top: 4px;
  left: 4px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.img-upload-remove {
  width: 100%;
  border: none;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.25rem;
  cursor: pointer;
}

.img-upload-remove:hover {
  color: var(--accent);
}

.grid-split-result {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.grid-split-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--input-bg);
}

.grid-split-item img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.grid-split-item .btn-small {
  width: 100%;
  border-radius: 0;
  font-size: 0.8rem;
  padding: 0.4rem;
}

.btn-small {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

.btn-outline {
  background: var(--surface);
  color: var(--text) !important;
  border: 1px solid var(--border);
  text-decoration: none !important;
}

.btn-outline:hover {
  background: var(--surface-hover);
  color: var(--text) !important;
  text-decoration: none !important;
}

.video-actions .btn,
.image-card-actions .btn {
  text-decoration: none;
}

.url-meta {
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.diff-grid,
.diff-result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.curl-convert-panel {
  padding: 1.25rem;
}

.curl-convert-actions {
  margin-bottom: 1rem;
}

.curl-convert-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}

.curl-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 480px;
}

.curl-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  padding: 0 0.15rem;
}

.curl-pane-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.curl-pane-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.curl-source-editor {
  flex: 1;
  width: 100%;
  min-width: 0;
  min-height: 420px;
  resize: vertical;
  padding: 14px 16px;
  background: #1e1f22;
  color: #bcbec4;
  border: 1px solid #393b40;
  border-radius: var(--radius);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.65;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.curl-source-editor::placeholder {
  color: #6e6e6e;
}

.curl-source-editor:focus {
  outline: none;
  border-color: #4f8cff;
  box-shadow: 0 0 0 2px rgba(79, 140, 255, 0.15);
}

.ide-code-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 420px;
  background: #2b2b2b;
  border: 1px solid #3c3f41;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.ide-code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding: 0.35rem 0.5rem 0.35rem 0.75rem;
  background: #3c3f41;
  border-bottom: 1px solid #4b4f51;
  color: #bbbbbb;
  font-size: 0.75rem;
}

.ide-code-toolbar span {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.ide-code-toolbar-rich {
  gap: 0.5rem;
  flex-wrap: wrap;
}

.ide-toolbar-left,
.ide-toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.ide-toolbar-left {
  flex: 1;
}

.ide-toolbar-right {
  flex-shrink: 0;
}

.ide-tool-btn {
  padding: 0.2rem 0.65rem;
  border: 1px solid #5a5d5e;
  border-radius: 4px;
  background: #4c5052;
  color: #dfe1e5;
  font-size: 0.72rem;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.ide-tool-btn:hover {
  background: #5a5d5e;
  border-color: #6a6d6e;
  color: #ffffff;
}

.json-toolbar-search {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
  flex: 1;
  max-width: 360px;
}

.json-search-input {
  flex: 1;
  min-width: 120px;
  padding: 0.2rem 0.5rem;
  border: 1px solid #5a5d5e;
  border-radius: 4px;
  background: #2b2b2b;
  color: #dfe1e5;
  font-size: 0.72rem;
  line-height: 1.4;
}

.json-search-input::placeholder {
  color: #8a8a8a;
}

.json-search-input:focus {
  outline: none;
  border-color: #4f8cff;
  box-shadow: 0 0 0 1px rgba(79, 140, 255, 0.25);
}

.json-search-count {
  min-width: 2.5rem;
  color: #9aa0a6;
  font-size: 0.68rem;
  text-align: center;
}

.json-search-nav {
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: 1px solid #5a5d5e;
  border-radius: 4px;
  background: #4c5052;
  color: #dfe1e5;
  font-size: 0.72rem;
  line-height: 1;
  cursor: pointer;
}

.json-search-nav:hover {
  background: #5a5d5e;
  color: #ffffff;
}

.json-tree-output {
  padding: 12px 14px 16px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #2f343c;
}

.json-tree-output:not(.has-tree) {
  display: none;
}

.ide-code-viewer.has-json-tree .ide-code-body {
  background: #f7f8fa;
}

.ide-code-viewer.has-json-tree .ide-code-toolbar {
  border-bottom-color: #d8dde6;
}

.json-flat-output[hidden] {
  display: none !important;
}

.json-tree-root,
.json-entries,
.json-entry,
.json-branch {
  display: block;
}

.json-entry-row {
  display: flex;
  align-items: flex-start;
  min-height: 1.7em;
  padding: 1px 0;
  border-radius: 3px;
}

.json-branch-body {
  margin-left: 7px;
  padding-left: 12px;
  border-left: 1px dashed #c5cad3;
}

.json-fold-box {
  width: 15px;
  height: 15px;
  margin-top: 3px;
  margin-right: 6px;
  padding: 0;
  border: 1px solid #c4c8cf;
  border-radius: 2px;
  background: #ffffff;
  color: #5f6672;
  font-size: 13px;
  line-height: 13px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  flex-shrink: 0;
}

.json-fold-box:hover {
  border-color: #8f96a3;
  color: #2f343c;
  background: #f0f2f5;
}

.json-fold-spacer {
  width: 15px;
  margin-right: 6px;
  flex-shrink: 0;
}

.json-entry.is-collapsed .json-branch-body,
.json-entry.is-collapsed .json-entry-close {
  display: none;
}

.json-entry.is-expanded .json-meta,
.json-entry.is-expanded .json-bracket-inline-close {
  display: none;
}

.json-bracket {
  color: #5f6672;
  font-weight: 600;
}

.json-entry[data-type="array"] .json-bracket-open,
.json-entry[data-type="array"] .json-bracket-inline-close,
.json-entry[data-type="array"] .json-bracket-close {
  color: #1c7ed6;
}

.json-entry[data-type="object"] .json-bracket-open,
.json-entry[data-type="object"] .json-bracket-inline-close,
.json-entry[data-type="object"] .json-bracket-close {
  color: #92278f;
}

.json-key {
  color: #92278f;
  font-weight: 500;
}

.json-colon {
  color: #5f6672;
}

.json-meta {
  color: #9aa0a6;
  margin-left: 2px;
}

.json-str {
  color: #2f343c;
  white-space: pre-wrap;
  word-break: break-word;
}

.json-num {
  color: #1c7ed6;
}

.json-bool,
.json-null {
  color: #e03131;
}

.json-search-mark {
  background: rgba(255, 212, 59, 0.45);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}

.json-entry-row.json-search-match {
  background: rgba(255, 212, 59, 0.18);
}

.json-entry-row.json-search-active {
  background: rgba(255, 212, 59, 0.38);
  outline: 1px solid rgba(250, 176, 5, 0.55);
}

.ide-copy-btn {
  padding: 0.2rem 0.65rem;
  border: 1px solid #5a5d5e;
  border-radius: 4px;
  background: #4c5052;
  color: #dfe1e5;
  font-size: 0.72rem;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.ide-copy-btn:hover {
  background: #5a5d5e;
  border-color: #6a6d6e;
  color: #ffffff;
}

.ide-copy-btn:active {
  background: #3c3f41;
}

.ide-copy-btn.copied {
  border-color: #6a8759;
  color: #6a8759;
}

.ide-code-body {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.ide-code-pre {
  margin: 0;
  padding: 14px 16px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.65;
  tab-size: 4;
}

.ide-code-pre code {
  display: block;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
  color: #a9b7c6;
}

.ide-code-placeholder {
  position: absolute;
  inset: 0;
  padding: 14px 16px;
  color: #6e6e6e;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  pointer-events: none;
}

.ide-code-viewer.has-code .ide-code-placeholder {
  display: none;
}

.ide-kw { color: #cc7832; }
.ide-str { color: #6a8759; }
.ide-num { color: #6897bb; }
.ide-com { color: #808080; font-style: italic; }
.ide-fn { color: #ffc66d; }
.ide-class { color: #a9b7c6; font-weight: 600; }
.ide-module { color: #9876aa; }
.ide-type { color: #4fc1ff; }
.ide-builtin { color: #8888c6; }
.ide-json-key { color: #9876aa; }
.ide-html-tag { color: #e8bf6a; }
.ide-pre { color: #bbb529; }

.ide-preview-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 420px;
  background: #ffffff;
  border: 1px solid #3c3f41;
  border-radius: var(--radius);
  overflow: hidden;
}

.ide-preview-frame {
  flex: 1;
  width: 100%;
  min-height: 420px;
  border: none;
  background: #ffffff;
}

.devtools-ide-panel {
  padding: 1.25rem;
}

.devtools-ide-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}

.devtools-ide-actions {
  margin-bottom: 1rem;
}

.html-convert-split {
  display: grid;
  grid-template-rows: minmax(180px, 1fr) minmax(220px, 1fr);
  gap: 0.75rem;
  min-height: 520px;
}

.html-md-triple-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: stretch;
  min-height: 560px;
}

.html-md-triple-grid .curl-pane {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.html-md-triple-grid .curl-source-editor {
  flex: 1;
  min-height: 480px;
}

.markdown-output-pane {
  flex: 1;
  min-height: 480px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--input-bg), color-mix(in srgb, var(--input-bg) 88%, var(--accent)));
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.84rem;
  line-height: 1.65;
}

.markdown-output-empty {
  color: var(--text-muted);
  padding: 1.25rem;
}

.md-line {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 0.65rem;
  padding: 0.15rem 0.75rem 0.15rem 0.35rem;
  border-left: 2px solid transparent;
}

.md-line:hover {
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-left-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.md-line-no {
  color: var(--text-muted);
  text-align: right;
  user-select: none;
  opacity: 0.7;
}

.md-line code {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  background: transparent;
}

.md-line-heading code {
  color: var(--accent);
  font-weight: 600;
}

.md-line-list code {
  color: color-mix(in srgb, var(--text) 85%, var(--success));
}

.md-line-code code {
  color: #c2410c;
}

.md-line-quote code {
  color: var(--text-muted);
  font-style: italic;
}

.markdown-preview-pane {
  min-height: 480px;
  height: 100%;
}

.markdown-preview-pane .markdown-preview-body {
  min-height: 480px;
}

.html-md-output {
  min-height: 180px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.85rem;
}

.markdown-preview-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 220px;
  background: var(--input-bg);
}

.markdown-preview-body {
  flex: 1;
  overflow: auto;
  padding: 1rem 1.25rem;
  line-height: 1.7;
}

.markdown-preview-body h1,
.markdown-preview-body h2,
.markdown-preview-body h3 {
  margin: 0.8rem 0 0.5rem;
}

.markdown-preview-body p,
.markdown-preview-body ul,
.markdown-preview-body ol,
.markdown-preview-body pre {
  margin: 0.5rem 0;
}

.markdown-preview-body pre,
.markdown-preview-body code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.85rem;
}

.markdown-preview-body pre {
  padding: 0.75rem;
  border-radius: 8px;
  background: var(--surface);
  overflow: auto;
}

.markdown-preview-empty {
  color: var(--text-muted);
  margin: 0;
}

.qr-mode-switch {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.qr-mode-btn.active {
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.22);
}

.qr-preview-wrap img {
  max-width: 320px;
}

.md-editor-grid .md-editor-input {
  min-height: 520px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.9rem;
  line-height: 1.7;
}

.markdown-editor-preview-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  min-height: 520px;
  overflow: auto;
}

.markdown-editor-preview {
  padding: 1.25rem 1.5rem;
  line-height: 1.75;
}

.markdown-editor-preview h1,
.markdown-editor-preview h2,
.markdown-editor-preview h3 {
  margin: 1rem 0 0.6rem;
}

.markdown-editor-preview table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0;
}

.markdown-editor-preview th,
.markdown-editor-preview td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.65rem;
}

.markdown-editor-preview blockquote {
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-muted);
}

.curl-pane-header-main {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.curl-pane-header-actions {
  display: inline-flex;
  gap: 0.5rem;
}

.curl-pane-header-btn {
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.72rem;
  cursor: pointer;
}

.curl-pane-header-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.devtools-ide-panel .curl-pane-header-btn {
  border: 1px solid #5a5d5e;
  background: #3c3f41;
  color: #dfe1e5;
}

.devtools-ide-panel .curl-pane-header-btn:hover {
  background: #4c5052;
  border-color: #6a6d6e;
  color: #ffffff;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.diff-pane h3 {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.diff-output {
  min-height: 280px;
  padding: 0.85rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
}

.diff-same {
  display: block;
  color: var(--text);
}

.diff-add {
  display: block;
  background: rgba(22, 163, 74, 0.18);
}

.diff-remove {
  display: block;
  background: rgba(220, 38, 38, 0.18);
}

.diff-empty {
  display: block;
  background: rgba(100, 116, 139, 0.08);
}

.time-results {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.time-card {
  padding: 0.75rem 0.9rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.92rem;
}

.crypto-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.crypto-tab {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
}

.crypto-tab.active {
  background: var(--tag-bg);
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.35);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 1.25rem;
}

.calculator-panel {
  padding: 1.25rem;
}

.calc-mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.calc-mode-tab {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
}

.calc-mode-tab.active {
  background: var(--tag-bg);
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.35);
}

.calc-display-wrap {
  background: #1e1f22;
  border: 1px solid #393b40;
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}

.calc-expression {
  color: #9aa0a6;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.9rem;
  min-height: 1.4rem;
  word-break: break-all;
}

.calc-result {
  color: #ffffff;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 1.8rem;
  font-weight: 600;
  margin-top: 0.35rem;
  word-break: break-all;
}

.calc-simplified {
  color: #8ab4f8;
  font-size: 0.82rem;
  margin-top: 0.35rem;
}

.calc-input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

.calc-pad-shell {
  margin: 1rem 0;
  padding: 0.85rem;
  border-radius: 18px;
  background: linear-gradient(180deg, #2a2b2f 0%, #1f2023 100%);
  border: 1px solid #3a3b40;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 10px 30px rgba(15, 23, 42, 0.12);
}

.calc-pad {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
}

.calc-pad-scientific {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.calc-btn {
  min-height: 48px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.08s ease, filter 0.15s ease, background 0.15s ease;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.calc-btn:hover {
  filter: brightness(1.08);
}

.calc-btn:active {
  transform: scale(0.96);
}

.calc-btn-fn {
  min-height: 40px;
  background: #3b3c41;
  color: #d6d8dc;
  font-size: 0.78rem;
  font-weight: 600;
}

.calc-btn-util {
  background: #4a4b50;
  color: #f3f4f6;
  font-weight: 600;
}

.calc-btn-num {
  background: #505158;
  color: #ffffff;
  font-size: 1.1rem;
}

.calc-btn-op {
  background: #4f7cff;
  color: #ffffff;
  font-weight: 600;
}

.calc-btn-eq {
  background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.calc-btn-zero {
  grid-column: span 2;
}

.calc-history {
  min-height: 320px;
  max-height: 520px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  padding: 0.5rem;
}

.calc-history-empty,
.ip-results-empty {
  color: var(--text-muted);
  padding: 1rem;
  font-size: 0.9rem;
}

.calc-history-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  padding: 0.65rem 0.7rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.calc-history-item:hover {
  background: var(--surface);
}

.calc-history-expr {
  color: var(--text-muted);
  font-size: 0.82rem;
  word-break: break-all;
}

.calc-history-result {
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.95rem;
  margin-top: 0.2rem;
}

.calc-help {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.ip-results,
.tti-preview-wrap {
  min-height: 420px;
}

.ip-risk-card {
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.ip-risk-safe {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.ip-risk-low {
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid rgba(234, 179, 8, 0.25);
}

.ip-risk-medium {
  background: rgba(249, 115, 22, 0.12);
  border: 1px solid rgba(249, 115, 22, 0.25);
}

.ip-risk-high {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.ip-risk-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.ip-risk-score,
.ip-risk-reasons,
.ip-source {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.ip-result-section {
  margin-bottom: 1rem;
}

.ip-result-section h3 {
  font-size: 0.95rem;
  margin-bottom: 0.6rem;
}

.ip-result-list {
  display: grid;
  gap: 0.45rem;
}

.ip-result-list > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.75rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
}

.ip-result-list dt {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.ip-result-list dd {
  margin: 0;
  word-break: break-word;
}

@media (max-width: 720px) {
  .diff-grid,
  .diff-result-grid,
  .curl-convert-grid,
  .devtools-ide-grid,
  .split-panel {
    grid-template-columns: 1fr;
  }

  .split-panel-left,
  .split-panel-right {
    min-height: auto;
  }

  .split-textarea,
  .split-preview,
  .crypto-results,
  .base64-preview-wrap {
    min-height: 280px;
  }

  .json-toolbar-search {
    max-width: none;
    width: 100%;
  }

  .ide-code-toolbar-rich {
    align-items: stretch;
  }

  .ide-toolbar-left,
  .ide-toolbar-right {
    flex-wrap: wrap;
  }

  .calculator-layout {
    grid-template-columns: 1fr;
  }

  .calc-pad {
    gap: 0.45rem;
  }

  .calc-btn {
    min-height: 44px;
  }

  .calc-btn-fn {
    min-height: 38px;
  }

  .tools-page-top {
    grid-template-columns: 1fr;
  }

  .tools-page-title {
    justify-self: start;
  }

  .tools-search-wrap {
    width: 100%;
    justify-self: stretch;
  }

  .tools-result-count {
    justify-self: start;
  }

  .tools-card-grid {
    grid-template-columns: 1fr;
  }
}

/* Search tools */
.search-list,
.video-list {
  display: grid;
  gap: 1rem;
}

.search-item,
.video-item {
  padding: 1rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.search-item h3,
.video-item h3 {
  font-size: 1rem;
  margin-bottom: 0.45rem;
}

.search-item a,
.video-item a {
  color: var(--accent);
  text-decoration: none;
}

.search-item a:hover,
.video-item a:hover {
  text-decoration: underline;
}

.search-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.search-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 0.55rem;
}

.search-link {
  display: block;
  font-size: 0.82rem;
  word-break: break-all;
  color: var(--text-muted) !important;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.image-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.image-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  background: var(--surface-hover);
}

.image-card img.image-broken {
  object-fit: contain;
  padding: 1rem;
  background: var(--surface-hover);
}

.image-card-link {
  display: block;
  text-decoration: none;
}

.image-card-body {
  padding: 0.85rem;
}

.image-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.image-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.image-card-actions,
.video-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.btn-small {
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
}

.video-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1rem;
  align-items: start;
}

.video-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  background: var(--surface-hover);
}

.video-tip {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 720px) {
  .video-item {
    grid-template-columns: 1fr;
  }
}

/* ── Periodic Table ── */
.pt-page { padding-bottom: 2rem; }
.pt-hero { margin-bottom: 1rem; }
.pt-legend { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.pt-legend-item {
  font-size: 0.75rem; padding: 0.2rem 0.55rem; border-radius: 999px;
  border: 1px solid color-mix(in srgb, currentColor 25%, transparent);
}
.pt-wrap { display: grid; grid-template-columns: 1fr 280px; gap: 1rem; align-items: start; }
.pt-grid {
  display: grid; grid-template-columns: repeat(18, minmax(0, 1fr)); gap: 3px;
  padding: 0.75rem; border-radius: 14px; background: var(--surface);
  border: 1px solid var(--border); overflow-x: auto;
}
.pt-cell { min-height: 52px; border-radius: 8px; border: none; font: inherit; }
.pt-empty { visibility: hidden; pointer-events: none; }
.pt-el {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  cursor: pointer; transition: transform .15s, box-shadow .15s;
  color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.25);
}
.pt-el:hover { transform: scale(1.06); z-index: 2; box-shadow: 0 6px 18px rgba(0,0,0,.18); }
.pt-el.active { outline: 2px solid #fff; outline-offset: 2px; box-shadow: 0 0 0 3px var(--accent); }
.pt-z { font-size: 0.58rem; opacity: .85; line-height: 1; }
.pt-sym { font-size: 1rem; font-weight: 700; line-height: 1.1; }
.pt-cn { font-size: 0.58rem; opacity: .9; line-height: 1; margin-top: 1px; }
.pt-series-label {
  display: grid; place-items: center; font-size: 0.72rem; font-weight: 600;
  cursor: pointer; border: 1px dashed color-mix(in srgb, currentColor 40%, transparent);
  background: color-mix(in srgb, currentColor 12%, var(--surface));
}
.pt-detail {
  position: sticky; top: 1rem; padding: 1rem; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--border);
}
.pt-detail-empty { color: var(--text-muted); text-align: center; padding: 2rem 1rem; }
.pt-detail-head { display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.35rem; }
.pt-detail-z { font-size: 0.85rem; opacity: .8; }
.pt-detail-sym { font-size: 2rem; font-weight: 800; letter-spacing: 0.04em; }
.pt-detail-name { margin: 0 0 0.75rem; font-size: 1.15rem; }
.pt-detail-name small { font-size: 0.82rem; color: var(--text-muted); font-weight: 400; }
.pt-detail-meta { margin: 0; font-size: 0.88rem; display: grid; grid-template-columns: auto 1fr; gap: 0.35rem 0.75rem; }
.pt-detail-meta dt { color: var(--text-muted); }
.pt-detail-meta dd { margin: 0; }
.pt-detail-cfg { font-family: var(--font-mono, monospace); word-break: break-all; }
.pt-cat-alkali { background: linear-gradient(145deg, #ef4444, #dc2626); color: #fff; }
.pt-cat-alkaline { background: linear-gradient(145deg, #f59e0b, #d97706); color: #fff; }
.pt-cat-transition { background: linear-gradient(145deg, #3b82f6, #2563eb); color: #fff; }
.pt-cat-post { background: linear-gradient(145deg, #14b8a6, #0d9488); color: #fff; }
.pt-cat-metalloid { background: linear-gradient(145deg, #8b5cf6, #7c3aed); color: #fff; }
.pt-cat-nonmetal { background: linear-gradient(145deg, #22c55e, #16a34a); color: #fff; }
.pt-cat-halogen { background: linear-gradient(145deg, #ec4899, #db2777); color: #fff; }
.pt-cat-noble { background: linear-gradient(145deg, #64748b, #475569); color: #fff; }
.pt-cat-lanthanide { background: linear-gradient(145deg, #f97316, #ea580c); color: #fff; }
.pt-cat-actinide { background: linear-gradient(145deg, #a855f7, #7e22ce); color: #fff; }
.pt-cat-unknown { background: linear-gradient(145deg, #94a3b8, #64748b); color: #fff; }

/* ── Paper Size ── */
.paper-page { padding-bottom: 2rem; }
.paper-hero { margin-bottom: 1rem; }
.paper-controls { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; margin-bottom: 1rem; }
.paper-search-wrap { flex: 1 1 240px; margin-bottom: 0; }
.paper-series-tabs { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.paper-tab {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 0.35rem 0.75rem; border-radius: 999px; font-size: 0.82rem; cursor: pointer;
}
.paper-tab.active, .paper-tab:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.paper-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem;
}
.paper-card {
  border: 1px solid var(--border); border-radius: 14px; background: var(--surface);
  overflow: hidden; cursor: pointer; transition: transform .18s, box-shadow .18s;
}
.paper-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 14%, transparent); }
.paper-card-visual {
  min-height: 200px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 1rem; background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 6%, var(--surface)), var(--surface));
}
.paper-rect {
  border: 2px solid color-mix(in srgb, var(--accent) 55%, #fff);
  background: linear-gradient(135deg, #fff, color-mix(in srgb, var(--accent) 8%, #fff));
  box-shadow: 0 8px 24px rgba(0,0,0,.08); border-radius: 4px;
  display: grid; place-items: center; position: relative;
}
.paper-rect-label { font-size: 0.72rem; font-weight: 700; color: var(--accent); }
.paper-ratio-bar { width: 80%; height: 4px; margin-top: 0.75rem; background: var(--border); border-radius: 999px; overflow: hidden; }
.paper-ratio-bar span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.paper-card-body { padding: 0.85rem 1rem 1rem; }
.paper-name { margin: 0 0 0.35rem; font-size: 1.05rem; }
.paper-dim { margin: 0; font-size: 0.95rem; }
.paper-dim-sub { margin: 0.15rem 0 0.5rem; font-size: 0.82rem; color: var(--text-muted); font-family: var(--font-mono, monospace); }
.paper-note { margin: 0; font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }
.paper-empty { text-align: center; color: var(--text-muted); padding: 2rem; }

/* ── CSR / CRX / ASCII / University ── */
.csr-form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.75rem 1rem; }
.csr-san-wrap { grid-column: 1 / -1; }
.csr-actions { display: flex; align-items: center; gap: 0.75rem; margin: 1rem 0; flex-wrap: wrap; }
.csr-status { font-size: 0.88rem; color: var(--text-muted); }
.csr-status-ok { color: #16a34a; }
.csr-status-err { color: #dc2626; }
.crx-note, .crx-note-inline { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.35rem; }
.crx-info { margin: 0.75rem 0; }
.crx-meta { display: flex; flex-wrap: wrap; gap: 0.75rem; font-size: 0.88rem; align-items: center; }
.crx-badge { padding: 0.15rem 0.55rem; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 600; font-size: 0.78rem; }
.crx-err { color: #dc2626; }
.crx-file-list { max-height: 320px; overflow: auto; margin-bottom: 1rem; }
.crx-more { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.35rem; }
.ascii-art-controls { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; margin-bottom: 1rem; }
.ascii-art-preview-wrap { margin-bottom: 1rem; padding: 1rem; border-radius: 12px; background: #111; overflow: auto; max-height: 280px; }
.ascii-art-preview { font-family: var(--font-mono, monospace); font-size: 0.55rem; line-height: 0.62rem; color: #e2e8f0; white-space: pre; }
.ascii-output { font-family: var(--font-mono, monospace); font-size: 0.78rem; }
.ascii-art-btns { display: flex; flex-direction: column; gap: 0.35rem; }
.uni-page { padding-bottom: 2rem; }
.uni-controls { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; margin-bottom: 0.75rem; }
.uni-search-wrap { flex: 1 1 240px; margin-bottom: 0; }
.uni-tag-filter { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.uni-tag-btn {
  border: 1px solid var(--border); background: var(--surface); padding: 0.35rem 0.75rem;
  border-radius: 999px; font-size: 0.82rem; cursor: pointer;
}
.uni-tag-btn.active, .uni-tag-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.uni-count { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.uni-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.85rem; }
.uni-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem 1rem; background: var(--surface);
  transition: box-shadow .15s, transform .15s;
}
.uni-card:hover { transform: translateY(-2px); box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 10%, transparent); }
.uni-card-head { display: flex; justify-content: space-between; gap: 0.5rem; align-items: flex-start; margin-bottom: 0.25rem; }
.uni-name { margin: 0; font-size: 1.05rem; }
.uni-tags { display: flex; flex-wrap: wrap; gap: 0.25rem; justify-content: flex-end; }
.uni-tag { font-size: 0.68rem; padding: 0.1rem 0.4rem; border-radius: 999px; font-weight: 600; }
.uni-tag-985 { background: #fee2e2; color: #b91c1c; }
.uni-tag-211 { background: #dbeafe; color: #1d4ed8; }
.uni-tag-双一流 { background: #dcfce7; color: #15803d; }
.uni-city { margin: 0 0 0.45rem; font-size: 0.82rem; color: var(--text-muted); }
.uni-intro { margin: 0; font-size: 0.88rem; line-height: 1.6; color: var(--text); }
.uni-empty { text-align: center; color: var(--text-muted); padding: 2rem; }

/* World university query */
.wuni-page { padding-bottom: 2.5rem; }
.wuni-hero { margin-bottom: 1.25rem; }
.wuni-controls {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}
.wuni-controls > .form-group {
  margin-bottom: 0;
  min-width: 0;
}
.wuni-controls .wuni-search-wrap {
  flex: 1 1 auto;
}
.wuni-controls > .form-group:not(.wuni-search-wrap) {
  flex: 0 0 168px;
  width: 168px;
}
@media (max-width: 640px) {
  .wuni-controls {
    flex-wrap: wrap;
  }
  .wuni-controls > .form-group:not(.wuni-search-wrap) {
    flex: 1 1 calc(50% - 0.45rem);
    width: auto;
  }
  .wuni-controls .wuni-search-wrap {
    flex: 1 1 100%;
  }
}
.wuni-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}
.wuni-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.wuni-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.05rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--surface) 92%, #0ea5e9 8%), var(--surface));
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.wuni-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 12%, transparent);
}
.wuni-card-top {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}
.wuni-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--border);
  flex-shrink: 0;
  padding: 6px;
}
.wuni-logo-fallback {
  display: inline-block;
  background:
    linear-gradient(135deg, #0ea5e9, #1d4ed8);
}
.wuni-titles { min-width: 0; flex: 1; }
.wuni-name-zh {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.35;
  letter-spacing: 0.01em;
}
.wuni-name-en {
  margin: 0.15rem 0 0.45rem;
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.wuni-meta { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.wuni-chip {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
}
.wuni-chip-muted {
  background: color-mix(in srgb, var(--text-muted) 12%, transparent);
  color: var(--text-muted);
}
.wuni-chip-region {
  background: color-mix(in srgb, #0d9488 16%, transparent);
  color: #0f766e;
}
.wuni-address {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-muted);
}
.wuni-label {
  display: inline-block;
  margin-right: 0.35rem;
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #0f766e;
  background: color-mix(in srgb, #14b8a6 14%, transparent);
}
.wuni-intro {
  margin: 0;
  flex: 1;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text);
}
.wuni-link {
  align-self: flex-start;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.wuni-link:hover { text-decoration: underline; }
.wuni-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem 1rem;
}

@media (max-width: 960px) {
  .pt-wrap { grid-template-columns: 1fr; }
  .pt-detail { position: static; }
  .pt-grid { gap: 2px; }
  .pt-cell { min-height: 44px; }
  .pt-sym { font-size: 0.82rem; }
  .pt-cn { display: none; }
}