/* ==========================================================================
   My Blog - Custom Stylesheet (Consolidated)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 全局变量与基础
   -------------------------------------------------------------------------- */
:root {
  --bulma-primary-h: 171;
  --bulma-primary-s: 100%;
  --bulma-primary-l: 41%;
  --bulma-link-h: 233;
  --bulma-link-s: 100%;
  --bulma-link-l: 63%;

  --bg-body: var(--bulma-scheme-main-bis);
  --bg-dark: #121212;
  --bg-dark-card: #1a1a1a;
  --bg-dark-card-hover: #222;
  --text-dark-muted: #888;
  --border-dark: #2a2a2a;
}

:root[data-palette="default"] { --bg-body: #f4f7f7; }
:root[data-palette="forest"]  { --bg-body: #f3f7f4; }
:root[data-palette="sakura"]  { --bg-body: #faf4f6; }
:root[data-palette="ocean"]   { --bg-body: #f2f6fa; }
:root[data-palette="sunset"]  { --bg-body: #faf6f2; }
:root[data-palette="mono"]    { --bg-body: #f5f5f5; }

:root[data-theme="dark"] { --bg-body: var(--bg-dark); }

body {
  background-color: var(--bg-body);
  transition: background-color .25s ease, color .25s ease;
}
[data-theme="dark"] body { background-color: var(--bg-dark); }

/* --------------------------------------------------------------------------
   2. 导航栏
   -------------------------------------------------------------------------- */
.navbar.is-fixed-top {
  backdrop-filter: blur(12px);
  background-color: rgba(255, 255, 255, 0.75) !important;
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.03);
}
[data-theme="dark"] .navbar.is-fixed-top {
  background-color: rgba(18, 18, 18, 0.75) !important;
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}
.navbar-item.is-active {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border-radius: var(--bulma-radius);
  font-weight: 600;
  margin: 0.5rem 0.25rem;
  padding: 0.5rem 1rem;
  box-shadow: 0 4px 12px rgba(0, 200, 150, 0.2);
}
[data-theme="dark"] .navbar-item.is-active {
  background-color: rgba(0, 200, 150, 0.15) !important;
  color: var(--bulma-primary) !important;
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   3. 首页组件
   -------------------------------------------------------------------------- */
/* 3.1 标签过滤 */
#tag-filter .tag.is-clickable {
  transition: all 0.2s ease;
  border: 1px solid var(--bulma-border);
  background-color: var(--bulma-scheme-main);
  color: var(--bulma-text-strong);
  font-weight: 500;
}
[data-theme="dark"] #tag-filter .tag.is-clickable {
  background-color: var(--bg-dark-card);
  border-color: #333;
  color: #aaa;
}
#tag-filter .tag.is-clickable:hover {
  transform: translateY(-1px);
  color: var(--bulma-primary);
  border-color: var(--bulma-primary);
}
#tag-filter .tag.is-primary {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border-color: var(--bulma-primary);
}

/* 3.2 系列手风琴容器 */
.series-accordion {
  background-color: var(--bulma-scheme-main);
  border: 1px solid var(--bulma-border-weak);
  border-radius: var(--bulma-radius-large);
  margin-bottom: 2rem;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
[data-theme="dark"] .series-accordion {
  background-color: var(--bg-dark-card);
  border-color: var(--border-dark);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.series-accordion:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  border-color: var(--bulma-primary-soft);
}
[data-theme="dark"] .series-accordion:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
  border-color: rgba(0, 200, 150, 0.3);
}

/* 3.3 系列头部 */
.series-header {
  display: flex;
  align-items: center;
  padding: 1.1rem 1.5rem;
  cursor: pointer;
  background: linear-gradient(to right, var(--bulma-scheme-main-bis), var(--bulma-scheme-main));
  border-left: 4px solid var(--bulma-primary);
  transition: background 0.2s ease;
}
[data-theme="dark"] .series-header {
  background: linear-gradient(to right, var(--bg-dark-card-hover), var(--bg-dark-card));
}
.series-header:hover { background: var(--bulma-scheme-main-ter); }
[data-theme="dark"] .series-header:hover { background: #252525; }

.series-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bulma-text-strong);
  letter-spacing: -0.5px;
}
.series-count {
  font-size: 0.75rem;
  background-color: var(--bulma-scheme-main-ter);
  color: var(--bulma-text);
  padding: 0.12rem 0.55rem;
  border-radius: var(--bulma-radius-rounded);
  font-weight: 600;
  border: 1px solid var(--bulma-border-weak);
}
[data-theme="dark"] .series-count {
  background-color: #333;
  color: #ccc;
  border-color: transparent;
}
.series-icon-toggle {
  margin-left: auto;
  transition: transform 0.3s ease;
  color: var(--bulma-text);
}

/* 3.4 系列内容（卡片网格） */
.series-content {
  padding: 1.25rem 1.25rem 1.25rem;
  border-top: 1px solid var(--bulma-border-weak);
  background-color: var(--bulma-scheme-main);
}
[data-theme="dark"] .series-content {
  background-color: var(--bg-dark-card);
  border-top-color: var(--border-dark);
}

.series-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

/* 3.5 文章卡片（与归档页一致的视觉） */
.series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.05rem 1.25rem;
  border-radius: var(--bulma-radius-large);
  border: 1.5px solid var(--bulma-border);
  background:
    radial-gradient(circle at 100% 0%, var(--bulma-primary-soft) 0%, transparent 45%),
    linear-gradient(135deg, var(--bulma-scheme-main), var(--bulma-scheme-main-bis));
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.22s cubic-bezier(0.25, 0.8, 0.25, 1),
              box-shadow 0.22s ease,
              border-color 0.22s ease;
}
.series-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.08),
    0 0 0 3px var(--bulma-primary-soft);
  border-color: var(--bulma-primary);
}

/* 装饰图案：花朵（默认） */
.series-card::before {
  content: "";
  position: absolute;
  top: -18px;
  right: -18px;
  width: 74px;
  height: 74px;
  pointer-events: none;
  color: var(--bulma-primary);
  opacity: 0.14;
  background-color: currentColor;
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><g fill='black'><ellipse cx='50' cy='22' rx='13' ry='20'/><ellipse cx='50' cy='78' rx='13' ry='20'/><ellipse cx='22' cy='50' rx='20' ry='13'/><ellipse cx='78' cy='50' rx='20' ry='13'/><ellipse cx='30' cy='30' rx='13' ry='18' transform='rotate(45 30 30)'/><ellipse cx='70' cy='30' rx='13' ry='18' transform='rotate(-45 70 30)'/><ellipse cx='30' cy='70' rx='13' ry='18' transform='rotate(-45 30 70)'/><ellipse cx='70' cy='70' rx='13' ry='18' transform='rotate(45 70 70)'/><circle cx='50' cy='50' r='9' fill='white'/></g></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><g fill='black'><ellipse cx='50' cy='22' rx='13' ry='20'/><ellipse cx='50' cy='78' rx='13' ry='20'/><ellipse cx='22' cy='50' rx='20' ry='13'/><ellipse cx='78' cy='50' rx='20' ry='13'/><ellipse cx='30' cy='30' rx='13' ry='18' transform='rotate(45 30 30)'/><ellipse cx='70' cy='30' rx='13' ry='18' transform='rotate(-45 70 30)'/><ellipse cx='30' cy='70' rx='13' ry='18' transform='rotate(-45 30 70)'/><ellipse cx='70' cy='70' rx='13' ry='18' transform='rotate(45 70 70)'/><circle cx='50' cy='50' r='9' fill='white'/></g></svg>");
  -webkit-mask-size: contain;
          mask-size: contain;
  -webkit-mask-repeat: no-repeat;
          mask-repeat: no-repeat;
  transform: rotate(0deg);
  transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.3s ease;
}
.series-card:hover::before {
  opacity: 0.28;
  transform: rotate(45deg) scale(1.1);
}

/* 奇数卡片换星星 */
.series-card:nth-child(2n)::before {
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><polygon fill='black' points='50,8 60,38 92,38 66,57 76,90 50,70 24,90 34,57 8,38 40,38'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><polygon fill='black' points='50,8 60,38 92,38 66,57 76,90 50,70 24,90 34,57 8,38 40,38'/></svg>");
}
.series-card:nth-child(2n):hover::before {
  transform: rotate(72deg) scale(1.12);
}

.series-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--bulma-text-strong);
  line-height: 1.4;
  padding-right: 2.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.series-card:hover .series-card-title {
  color: var(--bulma-primary);
  text-decoration: underline;
  text-decoration-color: var(--bulma-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.series-card-summary {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--bulma-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.series-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
}
.series-card-date {
  font-family: var(--bulma-family-code);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--bulma-primary);
  background: var(--bulma-primary-soft);
  padding: 0.15rem 0.5rem;
  border-radius: var(--bulma-radius-rounded);
  letter-spacing: 0.2px;
}
.series-card-tags {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.series-card-tags .tag {
  font-size: 0.65rem !important;
  height: 1.55em !important;
  padding: 0 0.5em !important;
  font-weight: 600;
  letter-spacing: 0.2px;
  background-color: transparent !important;
  color: var(--bulma-primary) !important;
  border: 1.5px solid var(--bulma-primary) !important;
  border-radius: var(--bulma-radius-rounded) !important;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.series-card:hover .series-card-tags .tag {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
}
.series-card-tags .tag:hover { transform: translateY(-1px); }

/* 深色模式 */
[data-theme="dark"] .series-card {
  border-color: #3a3a3a;
  background:
    radial-gradient(circle at 100% 0%, rgba(0, 200, 150, 0.08) 0%, transparent 45%),
    linear-gradient(135deg, var(--bg-dark-card-hover), var(--bg-dark-card));
}
[data-theme="dark"] .series-card:hover {
  box-shadow:
    0 12px 30px rgba(0, 0, 0, 0.5),
    0 0 0 3px rgba(0, 200, 150, 0.15);
  border-color: var(--bulma-primary);
}
[data-theme="dark"] .series-card::before { opacity: 0.18; }
[data-theme="dark"] .series-card:hover::before { opacity: 0.35; }
[data-theme="dark"] .series-card-date { background: rgba(0, 200, 150, 0.12); }
[data-theme="dark"] .series-card-tags .tag {
  border-color: var(--bulma-primary) !important;
  color: var(--bulma-primary) !important;
}
[data-theme="dark"] .series-card:hover .series-card-tags .tag {
  background-color: var(--bulma-primary) !important;
  color: var(--bg-dark) !important;
}

/* 3.6 分页 */
.series-content .pagination {
  padding: 0.75rem 0.25rem 0.25rem;
}

/* 3.7 行式列表（保留兼容，某些场景仍可用） */
.series-post-list { border-radius: var(--bulma-radius); overflow: hidden; }
.series-post-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--bulma-border-weak);
  color: var(--bulma-text);
  text-decoration: none;
  transition: background .15s ease, padding-left .15s ease, color .15s ease;
}
.series-post-row:last-child { border-bottom: none; }
.series-post-row:hover {
  background: var(--bulma-primary-soft);
  padding-left: 1.4rem;
  color: var(--bulma-primary);
}
.series-post-main { display: flex; flex-direction: column; gap: .12rem; min-width: 0; flex: 1; }
.series-post-title {
  font-weight: 600; font-size: .95rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.series-post-row:hover .series-post-title { color: var(--bulma-primary); }
.series-post-date {
  font-size: .72rem; color: var(--bulma-text-light);
  font-family: var(--bulma-family-code); flex-shrink: 0;
}
.series-post-tags { display: flex; gap: .25rem; flex-shrink: 0; }
.timeline-summary {
  font-size: .8rem; color: var(--bulma-text-light);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 42rem;
}
[data-theme="dark"] .series-post-row { border-bottom-color: var(--border-dark); }
[data-theme="dark"] .series-post-row:hover { background: rgba(0, 200, 150, 0.08); }

/* --------------------------------------------------------------------------
   4. 详情页组件
   -------------------------------------------------------------------------- */
/* 4.1 目录 */
.toc-sticky {
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}
#toc-list { border-left: 2px solid var(--bulma-border-weak); }
[data-theme="dark"] #toc-list { border-left-color: #333; }
#toc-list a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
  color: var(--bulma-text);
  border-left: 2px solid transparent;
  margin-left: -2px;
  transition: all 0.15s ease;
}
#toc-list a:hover { color: var(--bulma-text-strong); }
[data-theme="dark"] #toc-list a { color: var(--bulma-text-light); }
[data-theme="dark"] #toc-list a:hover { color: var(--bulma-text-strong); }
#toc-list a.is-active {
  color: var(--bulma-primary);
  border-left-color: var(--bulma-primary);
  font-weight: 600;
  background-color: var(--bulma-primary-soft);
}
#toc-list .toc-h2 { padding-left: 1rem; }
#toc-list .toc-h3 { padding-left: 2rem; font-size: 0.8rem; }

/* 4.2 正文排版 */
#post-body > h1:first-child { display: none !important; }

:not(pre) > code {
  background-color: rgba(175, 184, 193, 0.2) !important;
  color: #eb5757 !important;
  padding: 0.2em 0.4em !important;
  border-radius: 4px;
  font-size: 0.85em;
}
[data-theme="dark"] :not(pre) > code {
  background-color: rgba(110, 118, 129, 0.4) !important;
  color: #ff7b72 !important;
}

.code-wrapper {
  background-color: #f6f8fa;
  border: 1px solid #d0d7de;
  border-radius: var(--bulma-radius-large);
  margin-bottom: 1.5rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
[data-theme="dark"] .code-wrapper {
  background-color: #0d0d0d;
  border-color: #333;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}
.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 1rem;
  background-color: #eef1f4;
  border-bottom: 1px solid #d0d7de;
}
[data-theme="dark"] .code-header {
  background-color: #1f1f1f;
  border-bottom-color: #333;
}
.code-lang {
  font-size: 0.75rem;
  font-family: var(--bulma-family-code);
  font-weight: 600;
  letter-spacing: 0.5px;
  color: hsl(
    calc(var(--bulma-primary-h) + 180),
    calc(var(--bulma-primary-s) * 0.8),
    calc(var(--bulma-primary-l) * 0.8)
  );
}
.copy-btn {
  color: hsl(
    calc(var(--bulma-primary-h) + 180),
    calc(var(--bulma-primary-s) * 0.8),
    calc(var(--bulma-primary-l) * 0.85)
  ) !important;
  transition: all 0.2s ease !important;
}
.copy-btn:hover {
  color: var(--bulma-primary) !important;
  background-color: transparent !important;
}
[data-theme="dark"] .code-lang {
  color: hsl(
    calc(var(--bulma-primary-h) + 180),
    calc(var(--bulma-primary-s) * 0.7),
    72%
  );
}
[data-theme="dark"] .copy-btn {
  color: hsl(
    calc(var(--bulma-primary-h) + 180),
    calc(var(--bulma-primary-s) * 0.7),
    72%
  ) !important;
}
[data-theme="dark"] .copy-btn:hover { color: var(--bulma-primary) !important; }

.code-wrapper pre {
  margin: 0 !important;
  padding: 1rem 1.2rem !important;
  background-color: transparent !important;
  border: none !important;
  border-radius: 0 !important;
}
.code-wrapper pre code {
  background-color: transparent !important;
  padding: 0 !important;
  box-shadow: none !important;
  font-size: 0.9em !important;
  line-height: 1.6 !important;
}
.code-wrapper pre::-webkit-scrollbar { height: 8px; width: 8px; }
.code-wrapper pre::-webkit-scrollbar-track { background: transparent; }
.code-wrapper pre::-webkit-scrollbar-thumb {
  background-color: rgba(150, 150, 150, 0.3); border-radius: 4px;
}
.code-wrapper pre::-webkit-scrollbar-thumb:hover {
  background-color: rgba(150, 150, 150, 0.6);
}
[data-theme="dark"] .code-wrapper pre::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.2);
}
[data-theme="dark"] .code-wrapper pre::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.4);
}

/* --------------------------------------------------------------------------
   5. 独立页面
   -------------------------------------------------------------------------- */
/* 5.1 Hero */
[data-theme="dark"] .hero.is-light {
  background-color: var(--bg-dark) !important;
  border-bottom: 1px solid var(--border-dark);
}
[data-theme="dark"] .hero.is-light .title { color: var(--bulma-text-strong) !important; }
[data-theme="dark"] .hero.is-light .subtitle { color: var(--text-dark-muted) !important; }

/* 5.2 关于页 */
.about-card {
  background: linear-gradient(135deg, var(--bulma-scheme-main), var(--bulma-scheme-main-bis));
  border: 1px solid var(--bulma-border-weak);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.about-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}
[data-theme="dark"] .about-card {
  background: linear-gradient(135deg, var(--bg-dark-card), var(--bg-dark-card-hover));
  border-color: #333;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.about-avatar {
  border: 4px solid var(--bulma-scheme-main);
  box-shadow: 0 0 0 2px var(--bulma-primary-soft), 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  object-fit: cover;
}
.about-avatar:hover { transform: scale(1.05); }
.about-content-text { padding-left: 2rem; padding-right: 2rem; }
.about-content-text p { font-size: 1.1rem; line-height: 1.8; color: var(--bulma-text); }
[data-theme="dark"] .about-content-text p { color: #ccc; }
[data-theme="dark"] .about-card .tag.is-light {
  background-color: rgba(255, 255, 255, 0.1) !important;
  color: #e0e0e0 !important;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
[data-theme="dark"] .about-card .button.is-primary.is-light {
  background-color: rgba(0, 200, 150, 0.15) !important;
  color: var(--bulma-primary) !important;
  border: 1px solid rgba(0, 200, 150, 0.3);
  transition: all 0.2s ease;
}
[data-theme="dark"] .about-card .button.is-primary.is-light:hover {
  background-color: var(--bulma-primary) !important;
  color: var(--bg-dark) !important;
  border-color: var(--bulma-primary);
}

/* 5.3 友链页 */
[data-theme="dark"] .links-page .button.is-light {
  background-color: var(--border-dark) !important;
  color: #ddd !important;
  border: 1px solid #444;
}

/* --------------------------------------------------------------------------
   6. 全局辅助
   -------------------------------------------------------------------------- */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  transform: translateY(10px);
}
#back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

#reading-progress {
  position: fixed;
  top: 3.25rem;
  left: 0;
  height: 3px;
  background-color: var(--bulma-primary);
  z-index: 1000;
  width: 0%;
  transition: width 0.1s ease-out;
}

[data-theme="dark"] #post-header .title { color: #e5e7eb !important; }
[data-theme="dark"] .title a, [data-theme="dark"] h1 a, [data-theme="dark"] h2 a { color: inherit; }

/* 打字机光标 */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --------------------------------------------------------------------------
   7. 主题面板（合并去重）
   -------------------------------------------------------------------------- */
#theme-panel {
  position: fixed;
  left: 1.25rem;
  bottom: 5rem;
  z-index: 998;
  background: var(--bulma-scheme-main);
  border: 1px solid var(--bulma-border-weak);
  border-radius: var(--bulma-radius-large);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
  padding: 1rem;
  width: 260px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .2s ease;
}
[data-theme="dark"] #theme-panel {
  background: var(--bg-dark-card);
  border-color: var(--border-dark);
}
#theme-panel.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
#theme-panel .panel-title {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--bulma-text-light);
  margin-bottom: .5rem;
}
#theme-panel .panel-divider {
  height: 1px;
  background: var(--bulma-border-weak);
  margin: .75rem 0;
}

#theme-fab {
  position: fixed;
  left: 1.25rem;
  bottom: 1.25rem;
  z-index: 999;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: var(--bulma-primary-invert);
  background: var(--bulma-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  transition: transform .2s ease, box-shadow .2s ease;
}
#theme-fab:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}
#theme-fab:active { transform: scale(0.97); }

/* 模式按钮 */
.mode-row { display: flex; gap: .5rem; }
.mode-btn {
  flex: 1;
  padding: .55rem 0;
  border-radius: var(--bulma-radius);
  border: 1px solid var(--bulma-border-weak);
  background: var(--bulma-scheme-main-bis);
  color: var(--bulma-text);
  cursor: pointer;
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  transition: all .15s ease;
}
.mode-btn:hover { border-color: var(--bulma-primary); color: var(--bulma-primary); }
[data-theme="dark"] .mode-btn {
  background: var(--bg-dark-card-hover);
  border-color: var(--border-dark);
  color: #ccc;
}
#theme-panel .mode-btn.is-active {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border: 2px solid var(--bulma-primary) !important;
  font-weight: 700 !important;
}

/* 配色按钮 */
.palette-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.palette-btn {
  height: 2.6rem;
  border-radius: var(--bulma-radius);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  transition: all .15s ease;
}
.palette-btn:hover { transform: translateY(-2px); }
#theme-panel .palette-btn.is-active {
  border: 3px solid #ffffff !important;
  box-shadow: 0 0 0 2px #000000, 0 0 10px rgba(0,0,0,0.5) !important;
  transform: scale(1.05) !important;
  z-index: 1;
}
.palette-btn::after {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 600;
  color: rgba(0,0,0,.65);
  text-shadow: 0 1px 0 rgba(255,255,255,.4);
}
[data-theme="dark"] .palette-btn::after {
  color: rgba(255,255,255,.85);
  text-shadow: 0 1px 0 rgba(0,0,0,.4);
}

/* 六种预览色块 */
.palette-btn[data-palette="default"] { background: linear-gradient(135deg,#00d1b2,#42b883); }
.palette-btn[data-palette="forest"]  { background: linear-gradient(135deg,#3f8f5c,#a3d977); }
.palette-btn[data-palette="sakura"]  { background: linear-gradient(135deg,#f78fb3,#ffd1dc); }
.palette-btn[data-palette="ocean"]   { background: linear-gradient(135deg,#2196f3,#4fc3f7); }
.palette-btn[data-palette="sunset"]  { background: linear-gradient(135deg,#ff7043,#ffb74d); }
.palette-btn[data-palette="mono"]    { background: linear-gradient(135deg,#4b5563,#d1d5db); }

/* 特效面板 */
.effect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
}
.effect-btn {
  height: 2.6rem;
  border-radius: var(--bulma-radius);
  border: 1px solid var(--bulma-border-weak);
  background: var(--bulma-scheme-main-bis);
  color: var(--bulma-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all .15s ease;
}
.effect-btn:hover { border-color: var(--bulma-primary); color: var(--bulma-primary); }
[data-theme="dark"] .effect-btn {
  background: var(--bg-dark-card-hover);
  border-color: var(--border-dark);
  color: #ccc;
}
#theme-panel .effect-btn.is-active {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border-color: var(--bulma-primary) !important;
  box-shadow: 0 0 8px var(--bulma-primary);
}

/* 透明度滑块 */
.opacity-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: .8rem;
  color: var(--bulma-text-light);
  position: relative;
  z-index: 10;
}
.opacity-row input[type="range"] {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 70% !important;
  height: 6px !important;
  border-radius: 3px !important;
  background: var(--bulma-border-weak) !important;
  outline: none !important;
  cursor: pointer !important;
  pointer-events: auto !important;
}
[data-theme="dark"] .opacity-row input[type="range"] {
  background: var(--border-dark) !important;
}
.opacity-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 16px !important;
  height: 16px !important;
  border-radius: 50% !important;
  background: var(--bulma-primary) !important;
  cursor: pointer !important;
  box-shadow: 0 0 6px rgba(0,0,0,0.4) !important;
  transition: transform .1s !important;
}
.opacity-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2) !important;
}