:root {
  --aoi-bg: #ead8c2;
  --aoi-bg-soft: #f5ebdc;
  --aoi-paper: rgba(255, 249, 239, 0.94);
  --aoi-paper-strong: #fff8ec;
  --aoi-muted: #735d49;
  --aoi-text: #342418;
  --aoi-heading: #21150e;
  --aoi-accent: #9b6237;
  --aoi-accent-strong: #6f3d20;
  --aoi-line: rgba(76, 48, 28, 0.14);
  --aoi-line-strong: rgba(76, 48, 28, 0.26);
  --aoi-shadow: 0 24px 58px rgba(60, 38, 22, 0.12);
}

[data-user-color-scheme="dark"] {
  --aoi-bg: #1d1712;
  --aoi-bg-soft: #2a2119;
  --aoi-paper: rgba(35, 28, 22, 0.94);
  --aoi-paper-strong: #2d231b;
  --aoi-muted: #d0b99f;
  --aoi-text: #f0dfcb;
  --aoi-heading: #fff7ec;
  --aoi-accent: #e0ad78;
  --aoi-accent-strong: #f3c796;
  --aoi-line: rgba(244, 207, 167, 0.12);
  --aoi-line-strong: rgba(244, 207, 167, 0.24);
  --aoi-shadow: 0 24px 58px rgba(0, 0, 0, 0.48);
}

body {
  background: var(--aoi-bg) !important;
  color: var(--aoi-text);
}

[data-user-color-scheme="dark"] body {
  background: var(--aoi-bg) !important;
}

#web_bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 0% 0%, rgba(149, 91, 48, 0.18), transparent 32%),
    radial-gradient(circle at 100% 0%, rgba(255, 238, 211, 0.34), transparent 24%),
    linear-gradient(180deg, var(--aoi-bg-soft), var(--aoi-bg)) !important;
  background-attachment: fixed !important;
  background-repeat: no-repeat !important;
  background-size: cover !important;
}

[data-user-color-scheme="dark"] #web_bg {
  background:
    radial-gradient(circle at 0% 0%, rgba(155, 98, 55, 0.2), transparent 32%),
    radial-gradient(circle at 100% 0%, rgba(224, 173, 120, 0.12), transparent 24%),
    linear-gradient(180deg, var(--aoi-bg-soft), var(--aoi-bg)) !important;
}

.navbar,
#navbar {
  background-color: rgba(255, 249, 239, 0.92) !important;
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
}

[data-user-color-scheme="dark"] .navbar,
[data-user-color-scheme="dark"] #navbar {
  background-color: rgba(25, 19, 15, 0.92) !important;
}

.navbar .navbar-brand,
.navbar .navbar-brand:hover,
.navbar .navbar-nav .nav-link,
.navbar .navbar-nav .nav-link:hover,
.navbar .navbar-nav .nav-item,
.navbar .navbar-nav .nav-item a,
.navbar .navbar-toggler,
.navbar i,
.navbar svg,
#navbar .navbar-brand,
#navbar .navbar-brand:hover,
#navbar .navbar-nav .nav-link,
#navbar .navbar-nav .nav-link:hover,
#navbar .navbar-nav .nav-item,
#navbar .navbar-nav .nav-item a,
#navbar .navbar-toggler,
#navbar i,
#navbar svg {
  color: var(--aoi-heading) !important;
  text-shadow: none !important;
}

[data-user-color-scheme="dark"] .navbar .navbar-brand,
[data-user-color-scheme="dark"] .navbar .navbar-brand:hover,
[data-user-color-scheme="dark"] .navbar .navbar-nav .nav-link,
[data-user-color-scheme="dark"] .navbar .navbar-nav .nav-link:hover,
[data-user-color-scheme="dark"] .navbar .navbar-nav .nav-item,
[data-user-color-scheme="dark"] .navbar .navbar-nav .nav-item a,
[data-user-color-scheme="dark"] .navbar .navbar-toggler,
[data-user-color-scheme="dark"] .navbar i,
[data-user-color-scheme="dark"] .navbar svg,
[data-user-color-scheme="dark"] #navbar .navbar-brand,
[data-user-color-scheme="dark"] #navbar .navbar-brand:hover,
[data-user-color-scheme="dark"] #navbar .navbar-nav .nav-link,
[data-user-color-scheme="dark"] #navbar .navbar-nav .nav-link:hover,
[data-user-color-scheme="dark"] #navbar .navbar-nav .nav-item,
[data-user-color-scheme="dark"] #navbar .navbar-nav .nav-item a,
[data-user-color-scheme="dark"] #navbar .navbar-toggler,
[data-user-color-scheme="dark"] #navbar i,
[data-user-color-scheme="dark"] #navbar svg {
  color: var(--aoi-heading) !important;
}

.navbar,
#navbar,
#board,
.card,
.post,
.archive,
.category,
.tag,
.page,
.footer-inner,
.footer-content {
  border-color: var(--aoi-line) !important;
  background-color: var(--aoi-paper) !important;
  box-shadow: var(--aoi-shadow);
}

.navbar a,
#board a,
.card a,
.post a,
.archive a,
.category a,
.tag a,
.page a {
  color: var(--aoi-accent);
}

.navbar a:hover,
#board a:hover,
.card a:hover,
.post a:hover,
.archive a:hover,
.category a:hover,
.tag a:hover,
.page a:hover {
  color: var(--aoi-accent-strong);
}

.aoiblog-snow-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
}

.aoiblog-paper-texture {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  opacity: 0.14;
  background-attachment: fixed;
  background-repeat: repeat;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 23px, rgba(111, 61, 32, 0.7) 23px, rgba(111, 61, 32, 0.7) 24px),
    repeating-linear-gradient(90deg, transparent, transparent 23px, rgba(111, 61, 32, 0.55) 23px, rgba(111, 61, 32, 0.55) 24px);
  -webkit-mask-image: linear-gradient(90deg, black, transparent 45%, transparent 55%, black);
  mask-image: linear-gradient(90deg, black, transparent 45%, transparent 55%, black);
}

[data-user-color-scheme="dark"] .aoiblog-paper-texture {
  opacity: 0.31;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 23px, rgba(224, 173, 120, 0.55) 23px, rgba(224, 173, 120, 0.55) 24px),
    repeating-linear-gradient(90deg, transparent, transparent 23px, rgba(224, 173, 120, 0.42) 23px, rgba(224, 173, 120, 0.42) 24px);
}

.aoiblog-post #board,
.aoiblog-post .post,
.aoiblog-post .markdown-body,
.aoiblog-post .post-content {
  position: relative;
  z-index: 1;
  background-color: var(--aoi-paper) !important;
}

.aoiblog-home #banner .banner-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.aoiblog-home .home-avatar {
  width: 96px;
  height: 96px;
  border: 3px solid rgba(255, 255, 255, 0.76);
  border-radius: 50%;
  box-shadow: 0 18px 40px rgba(10, 18, 30, 0.26);
  object-fit: cover;
}

#board .index-card {
  max-width: 980px;
  min-height: 230px;
  margin: 0 auto 2rem;
  overflow: hidden;
  border: 1px solid var(--aoi-line);
  border-radius: 8px;
  background: var(--aoi-paper-strong);
  box-shadow: var(--aoi-shadow);
}

#board .index-card:hover .index-img img {
  transform: scale(1.035);
}

#board .index-img {
  min-height: 230px;
  padding: 0;
}

#board .index-img a {
  display: block;
  height: 100%;
  min-height: 230px;
}

#board .index-img img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

#board .index-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 2.25rem;
}

#board .index-header {
  margin-bottom: 0.85rem;
  line-height: 1.35;
}

#board .index-header a {
  color: var(--aoi-heading);
  font-size: 1.45rem;
}

#board .index-excerpt {
  margin: 0;
  color: var(--aoi-muted);
  font-size: 0.98rem;
  line-height: 1.75;
}

#board .index-excerpt div {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

#board .index-btm {
  margin-top: 1.1rem;
  color: var(--aoi-muted);
}

[data-user-color-scheme="dark"] #board .index-card {
  border-color: var(--aoi-line);
  background: var(--aoi-paper-strong);
  box-shadow: var(--aoi-shadow);
}

[data-user-color-scheme="dark"] #board .index-header a {
  color: var(--aoi-heading);
}

[data-user-color-scheme="dark"] #board .index-excerpt {
  color: var(--aoi-muted);
}

[data-user-color-scheme="dark"] #board .index-btm {
  color: var(--aoi-muted);
}

@media (max-width: 767.98px) {
  .aoiblog-home .home-avatar {
    width: 78px;
    height: 78px;
  }

  #board .index-card {
    min-height: auto;
    margin-bottom: 1.35rem;
  }

  #board .index-img,
  #board .index-img a,
  #board .index-img img {
    min-height: 168px;
  }

  #board .index-info {
    padding: 1.45rem 1.3rem 1.55rem;
  }

  #board .index-header a {
    font-size: 1.22rem;
  }
}

.friend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.friend-card {
  display: flex;
  gap: 1rem;
  align-items: center;
  min-height: 128px;
  padding: 1.1rem;
  border: 1px solid var(--aoi-line);
  border-radius: 8px;
  background: var(--aoi-paper);
  color: var(--aoi-text);
  text-decoration: none !important;
  box-shadow: 0 14px 32px rgba(60, 38, 22, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.friend-card:hover {
  color: var(--aoi-heading);
  transform: translateY(-2px);
  box-shadow: var(--aoi-shadow);
}

.friend-card img {
  width: 72px;
  height: 72px;
  flex: 0 0 72px;
  border-radius: 50%;
  object-fit: cover;
}

.friend-card span {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.friend-card strong {
  color: var(--aoi-heading);
  font-size: 1.05rem;
}

.friend-card small {
  color: var(--aoi-muted);
  line-height: 1.55;
}

.friend-card em {
  overflow: hidden;
  color: var(--aoi-accent);
  font-size: 0.86rem;
  font-style: normal;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-user-color-scheme="dark"] .friend-card {
  border-color: var(--aoi-line);
  background: var(--aoi-paper);
  color: var(--aoi-text);
}

[data-user-color-scheme="dark"] .friend-card:hover,
[data-user-color-scheme="dark"] .friend-card strong {
  color: var(--aoi-heading);
}

[data-user-color-scheme="dark"] .friend-card small {
  color: var(--aoi-muted);
}

/* ---- Mobile TOC ---- */
.aoi-mobile-toc-btn {
  display: none;
  position: fixed;
  right: 16px;
  bottom: 100px;
  z-index: 1050;
  width: 44px;
  height: 44px;
  border: 1px solid var(--aoi-line, #ddd);
  border-radius: 50%;
  background: var(--aoi-paper, #fff);
  color: var(--aoi-text, #333);
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
  align-items: center;
  justify-content: center;
  transition: transform .2s ease, box-shadow .2s ease;
}
.aoi-mobile-toc-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 18px rgba(0,0,0,.18);
}
.aoi-mobile-toc-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.aoi-toc-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.aoi-toc-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.aoi-toc-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 2100;
  width: 300px;
  max-width: 85vw;
  background: var(--aoi-panel-bg, #fefaf2);
  box-shadow: -4px 0 24px rgba(0,0,0,.15);
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.32,.72,0,1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.aoi-toc-panel.active {
  transform: translateX(0);
}
.aoi-toc-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--aoi-line, #eee);
  flex-shrink: 0;
}
.aoi-toc-panel__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--aoi-heading, #222);
}
.aoi-toc-panel__close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: var(--aoi-bg-soft, #f0ebe0);
  color: var(--aoi-text-soft, #999);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background-color .2s ease;
}
.aoi-toc-panel__close:hover {
  background: var(--aoi-accent-soft, #e8d5c0);
}
.aoi-toc-panel__body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 20px 40px;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 991px) {
  .aoi-mobile-toc-btn {
    display: flex;
  }
  .aoi-toc-overlay {
    display: block;
  }
}
@media (min-width: 992px) {
  .aoi-toc-panel,
  .aoi-toc-overlay {
    display: none !important;
  }
}