/* 基础骨架：不绑定具体视觉，视觉与布局由 /css/skins/*.css 决定 */

:root {
  --radius: 16px;
  --font-display: "Outfit", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", sans-serif;
  --ink: #1a2e28;
  --muted: #5d746c;
  --line: rgba(26, 46, 40, 0.08);
  --accent: #1f8a70;
  --accent-soft: rgba(31, 138, 112, 0.12);
  --accent-deep: #146553;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --shadow: 0 12px 40px rgba(20, 70, 55, 0.08);
  --bg-top: #e8f6f1;
  --bg-bottom: #f7fbf9;
  --search-bg: rgba(255, 255, 255, 0.82);
  --search-border: rgba(255, 255, 255, 0.65);
  --icon-tile: #f3faf7;
  --placeholder: #9aa8a2;
  /* 表单控件始终深字浅底，避免深色皮肤下看不清 */
  --field-bg: #ffffff;
  --field-ink: #1a2430;
  --field-placeholder: #7b8794;
  --field-border: rgba(26, 36, 48, 0.16);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  position: relative;
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    var(--overlay, transparent),
    var(--bg-extra, none),
    var(--bg-image, none) center / cover no-repeat fixed;
}

html[data-wallpaper="on"] .bg-layer {
  background:
    var(--overlay, linear-gradient(180deg, rgba(6, 14, 26, 0.3), rgba(6, 14, 26, 0.55))),
    var(--custom-wallpaper) center / cover no-repeat fixed;
}

.topbar,
.page,
.skin-panel {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
  max-width: 1200px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 50% 50% 45% 55%;
  background: var(--mark-grad, linear-gradient(145deg, #3cb892, #1f8a70));
}

.brand-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.7rem);
  font-weight: 700;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.search-wrap input,
.skin-btn,
.admin-link {
  font: inherit;
}

.search-wrap input {
  width: min(160px, 32vw);
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  color: var(--field-ink);
  outline: none;
  caret-color: var(--field-ink);
}

.search-wrap input::placeholder {
  color: var(--field-placeholder);
  opacity: 1;
}

.skin-btn,
.admin-link {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
}

.admin-link {
  background: var(--accent-soft);
  color: var(--accent-deep);
  border-color: transparent;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 4rem;
}

.hero-search {
  position: relative;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  padding: 1.25rem 0 1.75rem;
}

.hero-clock {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  margin-bottom: 0.15rem;
}

.clock-time {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.clock-date {
  font-size: 0.9rem;
  color: var(--muted);
}

.hero-quote {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.shortcut-hint {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  opacity: 0.9;
}

.shortcut-hint kbd {
  display: inline-block;
  min-width: 1.15em;
  padding: 0.08em 0.38em;
  margin: 0 0.12em;
  font: inherit;
  font-size: 0.86em;
  line-height: 1.35;
  color: var(--ink);
  background: var(--surface-solid, #fff);
  border: 1px solid var(--line);
  border-radius: 5px;
  box-shadow: 0 1px 0 var(--line);
  vertical-align: baseline;
}

.skin-head-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.skin-auto-row {
  margin: 0 0 0.85rem;
}

.skin-auto-row label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.skin-auto-row select {
  font: inherit;
  color: var(--field-ink);
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: 10px;
  padding: 0.5rem 0.7rem;
  max-width: 100%;
}

.skin-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.skin-tag {
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #f4f7f6;
  color: #445;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.skin-tag.active {
  background: #1f8a70;
  color: #fff;
  border-color: transparent;
}

body.skin-switching .page,
body.skin-switching .topbar {
  animation: skin-fade 0.45s ease;
}

@keyframes skin-fade {
  0% { opacity: 0.35; transform: translateY(6px); }
  100% { opacity: 1; transform: translateY(0); }
}

.baidu-search {
  position: relative;
  z-index: 31;
  display: flex;
  align-items: center;
  width: min(640px, 100%);
  min-height: 52px;
  border: 1px solid var(--search-border);
  border-radius: 999px;
  background: var(--search-bg);
  backdrop-filter: blur(12px);
  padding: 0.25rem 0.35rem 0.25rem 0.75rem;
  box-shadow: var(--shadow);
  overflow: visible;
}

.engine-wrap {
  position: relative;
  z-index: 32;
  flex-shrink: 0;
}

.engine-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  border: none;
  background: transparent;
  color: #2974f2;
  font: inherit;
  font-weight: 700;
  padding: 0.4rem 0.65rem 0.4rem 0.2rem;
  border-right: 1px solid rgba(0, 0, 0, 0.08);
  margin-right: 0.25rem;
  cursor: pointer;
}

.engine-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 100;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  min-width: 132px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}

.engine-menu li button {
  width: 100%;
  border: none;
  background: transparent;
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  font: inherit;
  cursor: pointer;
  color: #1a2e28;
}

.engine-menu li button:hover,
.engine-menu li button.active {
  background: rgba(41, 116, 242, 0.1);
  color: #2974f2;
}

.baidu-search input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 0.7rem;
  font: inherit;
  color: var(--field-ink);
  caret-color: var(--field-ink);
  outline: none;
}

.baidu-search input::placeholder {
  color: var(--field-placeholder);
  opacity: 1;
}

.baidu-search > button[type="submit"] {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--field-placeholder);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.category-nav {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
}

.chip {
  border: 1px solid transparent;
  background: var(--surface);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.chip-count {
  font-size: 0.78rem;
  opacity: 0.75;
  min-width: 1.1em;
}

.chip.active {
  background: var(--accent);
  color: #fff;
}

.chip.active .chip-count {
  opacity: 0.9;
}

.site-boards {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.75rem;
}

.board-title {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.recent-board,
.pinned-board {
  margin-bottom: 0.35rem;
}

.recent-board .board-title,
.pinned-board .board-title {
  color: var(--muted);
  font-weight: 600;
  font-size: 1rem;
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.8rem;
}

.site-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.9rem 0.65rem;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.site-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.site-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: contain;
  background: var(--icon-tile);
  padding: 4px;
}

.site-icon.fallback {
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent-deep);
  background: var(--fallback-grad, #e8f6f1);
}

.site-name {
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  word-break: break-word;
}

.site-note {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 100%;
  font-size: 0.72rem;
  line-height: 1.3;
  color: var(--muted);
  text-align: center;
  word-break: break-word;
}

.pin-badge {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--surface-solid, #fff);
}

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

.hidden { display: none !important; }

.skeleton-chip,
.skeleton-title,
.skeleton-item {
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,.4), rgba(255,255,255,.85), rgba(255,255,255,.4));
  background-size: 200% 100%;
  animation: shimmer 1.2s linear infinite;
}
.skeleton-chip { width: 72px; height: 34px; border: none; }
.skeleton-title { width: 96px; height: 1rem; border-radius: 8px; margin-bottom: 1rem; }
.skeleton-item { min-height: 100px; border: none; }
@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

/* 皮肤选择面板（全局） */
.skin-panel {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(10, 18, 24, 0.4);
  backdrop-filter: blur(6px);
}

.skin-dialog {
  width: min(780px, 100%);
  max-height: min(84vh, 720px);
  overflow: auto;
  background: var(--surface-solid);
  color: #1a2e28;
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 1.2rem;
}

.skin-dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.skin-dialog-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.skin-close {
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #eef3f1;
  cursor: pointer;
  font-size: 1.2rem;
}

.skin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 0.75rem;
  max-height: 42vh;
  overflow: auto;
  padding-right: 0.15rem;
}

.skin-card {
  border: 2px solid transparent;
  border-radius: 16px;
  overflow: hidden;
  padding: 0;
  background: #fff;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: #1a2e28;
}

.skin-card.active {
  border-color: #1f8a70;
  box-shadow: 0 0 0 3px rgba(31, 138, 112, 0.15);
}

.skin-preview {
  display: block;
  height: 78px;
  background-size: cover;
  background-position: center;
}

.skin-card-meta {
  display: block;
  padding: 0.65rem 0.75rem 0.8rem;
}

.skin-card-name {
  display: block;
  font-weight: 700;
  font-size: 0.95rem;
}

.skin-card-desc {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: #6a7a74;
  line-height: 1.35;
}

.wallpaper-box {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.wallpaper-box h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.wallpaper-tip {
  margin: 0 0 0.75rem;
  color: #6a7a74;
  font-size: 0.85rem;
}

.wallpaper-row {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 0.55rem;
  flex-wrap: wrap;
}

.wallpaper-row input {
  flex: 1;
  min-width: 180px;
  border: 1px solid var(--field-border);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  font: inherit;
  background: var(--field-bg);
  color: var(--field-ink);
  caret-color: var(--field-ink);
  outline: none;
}

.wallpaper-row input::placeholder {
  color: var(--field-placeholder);
  opacity: 1;
}

.upload-btn,
.ghost-plain {
  font: inherit;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
}

.upload-btn {
  display: inline-flex;
  background: #1f8a70;
  color: #fff;
}

.ghost-plain {
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: transparent;
  color: #445;
}

.skin-howto {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: #f3faf7;
  color: #355;
  font-size: 0.85rem;
  line-height: 1.55;
}

.skin-howto code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

@media (max-width: 720px) {
  .search-wrap input { width: 110px; }
  .engine-toggle span.engine-name { display: none; }
}

/* 覆盖各皮肤对输入框的浅色字设置，保证白底输入始终可读 */
html[data-skin] .search-wrap input,
html[data-skin] .baidu-search input,
html[data-skin] .wallpaper-row input,
html[data-skin] .skin-dialog input,
html[data-skin] .skin-dialog select {
  color: var(--field-ink);
  caret-color: var(--field-ink);
}

html[data-skin] .search-wrap input,
html[data-skin] .wallpaper-row input,
html[data-skin] .skin-dialog input,
html[data-skin] .skin-dialog select {
  background: var(--field-bg);
  border-color: var(--field-border);
}

html[data-skin] .search-wrap input::placeholder,
html[data-skin] .baidu-search input::placeholder,
html[data-skin] .wallpaper-row input::placeholder,
html[data-skin] .skin-dialog input::placeholder {
  color: var(--field-placeholder);
  opacity: 1;
}

html[data-skin] .baidu-search {
  background: var(--search-bg, var(--field-bg));
}

html[data-skin] .baidu-search > button[type="submit"] {
  color: var(--field-placeholder);
}

html[data-skin] .engine-menu {
  background: var(--field-bg);
  color: var(--field-ink);
}

html[data-skin] .engine-menu li button {
  color: var(--field-ink);
}