/* style.css 导航网站主样式 */
:root {
  --main-bg: #f7f9fb;
  --card-bg: #fff;
  --primary: #2d8cf0;
  --text: #222;
  --desc: #666;
  --border: #e5e9f2;
  --radius: 16px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Arial', sans-serif;
  background: var(--main-bg);
  color: var(--text);
  min-height: 100vh;
}
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--card-bg);
  width: 100%;
  padding: 2rem 1rem 1rem 1rem;
  box-shadow: var(--shadow);
  border-radius: 0 0 var(--radius) var(--radius);
  margin-bottom: 2rem;
}
.container {
  max-width: 1800px;
  margin: 0 auto;
  padding: 0 1rem 2rem 1rem;
}
.category {
  margin-bottom: 2.5rem;
  margin-top: 2.5rem;
}
.category:first-child {
  margin-top: 0;
}
.category-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  margin-bottom: 1.2rem;
  margin-top: 0.5rem;
  position: relative;
  padding-left: 1.1em;
}
.category-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 1.5em;
  border-radius: 4px;
  background: linear-gradient(180deg, #2d8cf0 60%, #6ec6ff 100%);
  position: absolute;
  left: 0;
  top: 0.1em;
}
.category-title::after {
  content: '';
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35em;
  height: 2px;
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  border-radius: 2px;
  opacity: 0.7;
}
.site-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
  align-items: stretch;
}
.site-card {
  position: relative;
  width: auto;
  min-width: 0;
  max-width: none;
  flex: none;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 0.8rem 1rem;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
  box-sizing: border-box;
  /* 毛玻璃效果 */
  backdrop-filter: blur(8px) saturate(120%);
  background: rgba(255,255,255,0.65);
}
.site-domain-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  background: linear-gradient(135deg, rgba(45,140,240,0.15) 0%, rgba(45,140,240,0.08) 100%);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(45,140,240,0.2);
  backdrop-filter: blur(4px);
  z-index: 3;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 3px rgba(45,140,240,0.1);
}
.site-card:hover {
  box-shadow: 0 4px 24px rgba(45,140,240,0.10);
  transform: translateY(-2px) scale(1.03);
  border-color: var(--primary);
}
.site-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  margin-right: 1rem;
  background: #f0f0f0;
  object-fit: contain;
  flex-shrink: 0;
}
.site-info {
  flex: 1;
  min-width: 0;
}
.site-title {
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0 0 0.3rem 0;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-desc {
  font-size: 0.85rem;
  color: var(--desc);
  margin: 0;
  line-height: 1.5;
  word-break: break-all;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-clicks {
  position: absolute;
  top: 0.5em;
  right: 0.7em;
  background: rgba(45,140,240,0.15);
  color: rgba(45,140,240,0.7);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.1em 0.6em 0.1em 0.6em;
  border-radius: 1em;
  box-shadow: none;
  letter-spacing: 0.5px;
  z-index: 2;
  pointer-events: none;
  user-select: none;
  transform: none;
}

.site-total-clicks {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: linear-gradient(135deg, rgba(45,140,240,0.15) 0%, rgba(45,140,240,0.08) 100%);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(45,140,240,0.2);
  backdrop-filter: blur(8px);
  z-index: 10;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 4px rgba(45,140,240,0.1);
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.site-card:hover .site-total-clicks {
  opacity: 1;
  transform: translateY(0);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  max-width: 1800px;
  margin: 0 auto;
  padding: 0 1rem;
  height: 64px;
  background: var(--card-bg);
}
.nav-title {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary);
  letter-spacing: 2px;
  margin-right: 1.2rem;
}
.search-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #f5f7fa;
  border-radius: 8px;
  padding: 0.3rem 0.6rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
  min-width: 320px;
  flex-shrink: 0;
  position: relative;
  margin-left: auto;
}
.search-select {
  border: none;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  font-size: 1rem;
  color: var(--primary);
  outline: none;
  padding: 0.2rem 2rem 0.2rem 0.7rem;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(45,140,240,0.07);
  position: relative;
  min-width: 100px;
  cursor: pointer;
  transition: background 0.25s, box-shadow 0.25s, color 0.2s, transform 0.18s cubic-bezier(.4,1.4,.6,1), filter 0.18s;
  font-weight: 400;
}
.search-select:hover, .search-select:focus {
  border: none;
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  outline: none;
  color: #1769c7;
  box-shadow: 0 4px 16px rgba(45,140,240,0.13);
  transform: scale(1.045);
  filter: brightness(1.04);
}
.search-input {
  border: none;
  background: transparent;
  font-size: 1rem;
  outline: none;
  width: 180px;
  padding: 0.2rem 0.4rem;
}
.search-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.3rem 0.9rem;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.search-btn:hover {
  background: #1769c7;
}
.search-select::-ms-expand {
  display: none;
}
.search-select {
  background-image:
    url('data:image/svg+xml;utf8,<svg fill="%232d8cf0" height="16" viewBox="0 0 24 24" width="16" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 1.1em;
}
.search-select option {
  background: #fff;
  color: #222;
  font-size: 1.05rem;
  font-weight: 400;
  border: none;
  padding: 0.7em 1.2em;
  line-height: 2.1;
  transition: background 0.22s, color 0.18s;
}
.search-select option:checked,
.search-select option:focus,
.search-select option:hover {
  background: linear-gradient(90deg, #e6f0fa 60%, #d2e7ff 100%);
  color: var(--primary);
}
.search-select:focus {
  outline: none;
  border: 1.5px solid var(--primary);
}
.custom-select {
  position: relative;
  min-width: 120px;
  width: 140px;
  user-select: none;
  font-size: 1rem;
  margin-right: 0.7rem;
}
.select-selected {
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(45,140,240,0.07);
  padding: 0.3rem 2.2rem 0.3rem 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  min-height: 38px;
  transition: box-shadow 0.22s, background 0.22s;
  position: relative;
}
.select-selected.select-open {
  box-shadow: 0 6px 24px rgba(45,140,240,0.18);
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
}
.select-arrow {
  border: solid var(--primary);
  border-width: 0 2.5px 2.5px 0;
  display: inline-block;
  padding: 4px;
  margin-left: 8px;
  transform: rotate(45deg);
  transition: transform 0.22s;
  position: absolute;
  right: 14px;
  top: 50%;
  margin-top: -5px;
}
.select-selected.select-open .select-arrow {
  transform: rotate(-135deg);
}
.select-icon {
  width: 20px;
  height: 20px;
  margin-right: 7px;
  border-radius: 4px;
  object-fit: contain;
  background: #f0f0f0;
}
.select-items {
  position: absolute;
  top: 110%;
  left: 0;
  right: 0;
  z-index: 99;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(45,140,240,0.13);
  margin-top: 2px;
  overflow: hidden;
  animation: selectFadeIn 0.22s;
}
@keyframes selectFadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.select-hide {
  display: none;
}
.select-item {
  display: flex;
  align-items: center;
  padding: 0.6rem 1.1rem 0.6rem 0.8rem;
  cursor: pointer;
  font-size: 1rem;
  color: #222;
  background: #fff;
  border: none;
  transition: background 0.18s, color 0.18s;
}
.select-item:hover, .select-item.active, .select-item:focus {
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  color: var(--primary);
  outline: none;
}
.nav-extra {
  display: flex;
  align-items: center;
  margin-left: 0;
}
.tool-dropdown {
  min-width: 80px;
  width: auto;
  max-width: none;
}
.tool-dropdown .select-items {
  min-width: 80px;
  width: max-content;
  max-width: none;
}
.select-item {
  text-decoration: none !important;
}
.ltaaa-bar {
  width: 100%;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(45,140,240,0.07);
  margin: 1.2rem 0 0.5rem 0;
  padding: 0.5em 1.2em;
  display: flex;
  align-items: center;
  min-height: 2.2em;
  overflow: hidden;
}
.ltaaa-bar-link {
  display: flex;
  align-items: center;
  width: 100%;
  text-decoration: none;
  color: var(--primary);
  font-size: 1.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ltaaa-bar-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: cover;
  margin-right: 0.8em;
  background: #f0f0f0;
  flex-shrink: 0;
}
.ltaaa-bar-title {
  display: inline-block;
  max-width: 90vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}
.ltaaa-float-bar-container {
  position: fixed;
  right: 32px;
  bottom: 580px;
  z-index: 9999;
  width: 320px;
  height: 498px;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
  border-radius: 18px;
  backdrop-filter: blur(1px);
  display: none; /* 默认隐藏，JS控制显示 */
}
.ltaaa-float-bar-container[style*="display: block"] {
  display: block !important;
  pointer-events: auto;
}
.ltaaa-toggle-btn {
  /* 参考 .select-selected 样式 */
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  color: var(--primary);
  border: none;
  border-radius: 12px;
  padding: 0.45em 1.3em;
  font-size: 1.05rem;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(45,140,240,0.07);
  cursor: pointer;
  margin-left: 0.7rem;
  transition: background 0.22s, color 0.18s, box-shadow 0.18s, transform 0.18s;
  min-height: 38px;
  user-select: none;
}
.ltaaa-toggle-btn.active,
.ltaaa-toggle-btn:focus,
.ltaaa-toggle-btn:hover {
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  color: #1769c7;
  box-shadow: 0 4px 16px rgba(45,140,240,0.13);
  outline: none;
  font-weight: 600;
  transform: scale(1.045);
}
.ltaaa-float-card {
  position: absolute;
  left: 0;
  width: 100%;
  height: 450px;
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--border);
  pointer-events: auto;
  transition: top 0.4s ease-in-out, box-shadow 0.22s, transform 0.5s ease-in-out, opacity 0.5s;
  display: block;
  box-sizing: border-box;
  padding: 0;
  overflow: hidden;
  z-index: 2;
}
.ltaaa-domain-badge {
  position: absolute;
  top: 12px;
  left: 16px;
  background: linear-gradient(135deg, rgba(45,140,240,0.15) 0%, rgba(45,140,240,0.08) 100%);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(45,140,240,0.2);
  backdrop-filter: blur(8px);
  z-index: 10;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.3px;
  box-shadow: 0 1px 4px rgba(45,140,240,0.1);
}
.ltaaa-float-card.card-bottom {
  top: -12px;
  z-index: 1;
  opacity: 0.75;
  box-shadow: 0 1px 4px rgba(45,140,240,0.03), 0 1px 2px rgba(0,0,0,0.01);
  border: 1px solid rgba(45,140,240,0.08);
  transform: scale(0.92);
  filter: blur(1px);
}
.ltaaa-float-card.card-mid {
  top: 16px;
  z-index: 2;
  opacity: 0.88;
  box-shadow: 0 2px 8px rgba(45,140,240,0.06), 0 1px 3px rgba(0,0,0,0.03);
  border: 1px solid rgba(45,140,240,0.12);
  transform: scale(0.96);
  filter: blur(0.5px);
}
.ltaaa-float-card.card-top {
  top: 48px;
  z-index: 3;
  opacity: 1;
  box-shadow: 0 4px 16px rgba(45,140,240,0.12), 0 2px 6px rgba(0,0,0,0.06);
  border: 1px solid rgba(45,140,240,0.16);
  transform: scale(1);
  filter: blur(0px);
}
.ltaaa-float-img {
  width: 100%;
  height: 200px;
  min-height: 200px;
  max-height: 200px;
  border-radius: 18px 18px 0 0;
  object-fit: cover;
  margin: 0 0 8px 0;
  background: #f0f0f0;
  display: block;
  position: relative;
}
.ltaaa-float-title-link {
  text-decoration: none;
  display: block;
  width: 100%;
}
.ltaaa-float-title-link:visited {
  color: var(--primary);
}
.ltaaa-float-title {
  font-size: 1em;
  color: var(--primary);
  font-weight: 500;
  text-align: left;
  margin: 12px 24px 0 24px;
  line-height: 1.6;
  max-width: 100%;
  min-height: 2.2em;
  max-height: none;
  overflow: visible;
  word-break: break-all;
  white-space: normal;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}
.ltaaa-float-card .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-img + .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-img {
  margin-bottom: 0;
}
.ltaaa-float-btns {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  pointer-events: none;
  z-index: 20;
  margin-top: 0;
  height: auto;
}
.ltaaa-float-btn {
  border: none;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  color: var(--primary);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.7em;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(45,140,240,0.10);
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ltaaa-float-btn:hover {
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  color: #1769c7;
  box-shadow: 0 4px 24px rgba(45,140,240,0.18);
}
.ltaaa-float-card.ltaaa-anim-up {
  animation: ltaaa-slide-up-out 0.5s ease-in-out forwards;
  z-index: 3;
}
.ltaaa-float-card.ltaaa-anim-down {
  animation: ltaaa-slide-down-out 0.5s ease-in-out forwards;
  z-index: 3;
}
.ltaaa-float-card.ltaaa-anim-in-up {
  animation: ltaaa-slide-up-in 0.5s ease-in-out forwards;
  z-index: 4;
}
.ltaaa-float-card.ltaaa-anim-in-down {
  animation: ltaaa-slide-down-in 0.5s ease-in-out forwards;
  z-index: 4;
}
@keyframes ltaaa-slide-up-out {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(100%) scale(1); opacity: 0.7; }
}
@keyframes ltaaa-slide-down-out {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(-100%) scale(1); opacity: 0.7; }
}
@keyframes ltaaa-slide-up-in {
  0% { transform: translateY(-100%) scale(1); opacity: 0.7; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes ltaaa-slide-down-in {
  0% { transform: translateY(100%) scale(1); opacity: 0.7; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
.ltaaa-close-btn {
  position: absolute;
  top: 12px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255,255,255,0.92);
  color: #888;
  border-radius: 50%;
  font-size: 1.3em;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s, color 0.18s;
  box-shadow: 0 2px 8px rgba(45,140,240,0.08);
}
.ltaaa-close-btn:hover {
  background: rgba(45,140,240,0.12);
  color: #1769c7;
}
.ltaaa-float-circle {
  position: fixed;
  right: 32px;
  bottom: 180px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  box-shadow: 0 4px 16px rgba(45,140,240,0.13);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 99999;
  transition: box-shadow 0.18s, background 0.18s;
  pointer-events: auto;
}
.ltaaa-float-circle:hover {
  box-shadow: 0 8px 32px rgba(45,140,240,0.18);
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
}
.ltaaa-float-circle-icon {
  font-size: 2em;
  color: var(--primary);
  user-select: none;
}
.ltaaa-float-card.card-mid {
  top: 16px;
  z-index: 2;
  opacity: 0.88;
  box-shadow: 0 2px 8px rgba(45,140,240,0.06), 0 1px 3px rgba(0,0,0,0.03);
  border: 1px solid rgba(45,140,240,0.12);
  transform: scale(0.96);
  filter: blur(0.5px);
}
.ltaaa-float-card.card-top {
  top: 48px;
  z-index: 3;
  opacity: 1;
  box-shadow: 0 4px 16px rgba(45,140,240,0.12), 0 2px 6px rgba(0,0,0,0.06);
  border: 1px solid rgba(45,140,240,0.16);
  transform: scale(1);
  filter: blur(0px);
}
.ltaaa-float-img {
  width: 100%;
  height: 200px;
  min-height: 200px;
  max-height: 200px;
  border-radius: 18px 18px 0 0;
  object-fit: cover;
  margin: 0 0 8px 0;
  background: #f0f0f0;
  display: block;
  position: relative;
}
.ltaaa-float-title-link {
  text-decoration: none;
  display: block;
  width: 100%;
}
.ltaaa-float-title-link:visited {
  color: var(--primary);
}
.ltaaa-float-title {
  font-size: 1em;
  color: var(--primary);
  font-weight: 500;
  text-align: left;
  margin: 12px 24px 0 24px;
  line-height: 1.6;
  max-width: 100%;
  min-height: 2.2em;
  max-height: none;
  overflow: visible;
  word-break: break-all;
  white-space: normal;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}
.ltaaa-float-card .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-img + .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-title-link {
  margin-top: 0;
}
.ltaaa-float-card .ltaaa-float-img {
  margin-bottom: 0;
}
.ltaaa-float-btns {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  pointer-events: none;
  z-index: 20;
  margin-top: 0;
  height: auto;
}
.ltaaa-float-btn {
  border: none;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  color: var(--primary);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.7em;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(45,140,240,0.10);
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ltaaa-float-btn:hover {
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  color: #1769c7;
  box-shadow: 0 4px 24px rgba(45,140,240,0.18);
}
.ltaaa-float-card.ltaaa-anim-up {
  animation: ltaaa-slide-up-out 0.5s ease-in-out forwards;
  z-index: 3;
}
.ltaaa-float-card.ltaaa-anim-down {
  animation: ltaaa-slide-down-out 0.5s ease-in-out forwards;
  z-index: 3;
}
.ltaaa-float-card.ltaaa-anim-in-up {
  animation: ltaaa-slide-up-in 0.5s ease-in-out forwards;
  z-index: 4;
}
.ltaaa-float-card.ltaaa-anim-in-down {
  animation: ltaaa-slide-down-in 0.5s ease-in-out forwards;
  z-index: 4;
}
@keyframes ltaaa-slide-up-out {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(100%) scale(1); opacity: 0.7; }
}
@keyframes ltaaa-slide-down-out {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(-100%) scale(1); opacity: 0.7; }
}
@keyframes ltaaa-slide-up-in {
  0% { transform: translateY(-100%) scale(1); opacity: 0.7; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes ltaaa-slide-down-in {
  0% { transform: translateY(100%) scale(1); opacity: 0.7; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
.ltaaa-close-btn {
  position: absolute;
  top: 12px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255,255,255,0.92);
  color: #888;
  border-radius: 50%;
  font-size: 1.3em;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s, color 0.18s;
  box-shadow: 0 2px 8px rgba(45,140,240,0.08);
}
.ltaaa-close-btn:hover {
  background: rgba(45,140,240,0.12);
  color: #1769c7;
}
.ltaaa-float-circle {
  position: fixed;
  right: 32px;
  bottom: 180px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  box-shadow: 0 4px 16px rgba(45,140,240,0.13);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 99999;
  transition: box-shadow 0.18s, background 0.18s;
  pointer-events: auto;
}
.ltaaa-float-circle:hover {
  box-shadow: 0 8px 32px rgba(45,140,240,0.18);
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
}
.ltaaa-float-circle-icon {
  font-size: 2em;
  color: var(--primary);
  user-select: none;
}
.theme-toggle-btn {
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, #f7f9fb 80%, #eaf3ff 100%);
  color: var(--primary);
  border: none;
  border-radius: 12px;
  padding: 0.45em 1.3em;
  font-size: 1.05rem;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(45,140,240,0.07);
  cursor: pointer;
  margin-left: 0.7rem;
  transition: background 0.22s, color 0.18s, box-shadow 0.18s, transform 0.18s;
  min-height: 38px;
  user-select: none;
}
.theme-toggle-btn:focus,
.theme-toggle-btn:hover {
  background: linear-gradient(90deg, #eaf3ff 60%, #d2e7ff 100%);
  color: #1769c7;
  box-shadow: 0 4px 16px rgba(45,140,240,0.13);
  outline: none;
  font-weight: 600;
  transform: scale(1.045);
}
@media (max-width: 600px) {
  .nav-title {
    display: block !important;
    font-size: 1.3rem;
    margin-right: auto;
  }
  .search-form,
  #ltaaaBarContainer,
  .ltaaa-toggle-btn {
    display: none !important;
  }
  .site-list {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  /* 隐藏常用网站区块 */
  .category-title:contains('常用网站'),
  .category-title:contains("Hot Sites") {
    display: none !important;
  }
  .category-title:contains('常用网站') ~ .site-list,
  .category-title:contains("Hot Sites") ~ .site-list {
    display: none !important;
  }
  /* 移除 .tool-dropdown 相关的所有移动端样式，不做任何覆盖 */
  .nav-bar {
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
    gap: 0.5rem;
  }
  .nav-extra {
    margin-left: 0;
    margin-right: 0;
    display: flex;
    align-items: center;
  }
}
@media (max-width: 700px) {
  .site-list {
    gap: 0.7rem;
  }
  .site-card {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 90px;
    height: auto;
    padding: 0.7rem;
  }
  .site-icon { width: 32px; height: 32px; margin-right: 0.7rem; }
  .category-title { font-size: 1.05rem; }
  .custom-select { width: 100%; min-width: 0; }
  .select-selected { min-height: 34px; font-size: 0.98rem; }
  .select-items { font-size: 0.98rem; }
  .ltaaa-bar { font-size: 0.97em; padding: 0.4em 0.5em; }
  .ltaaa-bar-icon { width: 20px; height: 20px; margin-right: 0.5em; }
}
@media (max-width: 1200px) {
  .site-list {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 800px) {
  .site-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-extra { margin-left: 0.5rem; }
  .tool-dropdown { margin-right: 0.5rem; }
}
@media (max-width: 500px) {
  .site-list {
    grid-template-columns: 1fr;
  }
}