/* ============================================================
   时光导航 · 首页专属样式（iOS 26 Liquid Glass 风格）
   设计令牌 / reset / 光斑背景 / 动效关键帧 / 减弱动效 → theme.css
   ============================================================ */

body {
  font-family: var(--font-sans);
  color: var(--text);
  /* 全局禁选：导航页的文字不应被选中，编辑框除外（下方恢复） */
  user-select: none;
  -webkit-user-select: none;
  transition: color 0.3s var(--ease-out);
}

/* 编辑框/输入框允许选中文字 */
input,
textarea {
  user-select: text;
  -webkit-user-select: text;
}

/* 入场用 backwards 填充：延迟期间保持起始态，结束后交还给 transition，互不干扰 */
/* ============ 布局（内容中心偏上） ============ */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12vh 24px 40px;
}

.hero {
  text-align: center;
  margin-bottom: 44px;
  animation: fade-down var(--dur-3) var(--ease-out) backwards;
}

.title {
  position: relative;
  display: inline-block;
  font-size: 2.7rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* 基底层：暗色渐变标题（默认显示） */
.title-base {
  background: linear-gradient(120deg, var(--text) 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* 聚光层：软边圆形滤镜随鼠标移动，圈内揭示亮色渐变（仿 DeepSeek「探索未至之境」） */
.title-focus {
  position: absolute;
  inset: 0;
  --spot-core: 1.8em;
  --spot-fade: 0.9em;
  background: linear-gradient(120deg, var(--ios-blue) 0%, var(--ios-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-mask-image: radial-gradient(
    circle at var(--x, 50%) var(--y, 50%),
    #000 0,
    #000 calc(var(--spot-core) - var(--spot-fade)),
    transparent var(--spot-core)
  );
  mask-image: radial-gradient(
    circle at var(--x, 50%) var(--y, 50%),
    #000 0,
    #000 calc(var(--spot-core) - var(--spot-fade)),
    transparent var(--spot-core)
  );
  opacity: 0;
  transition: opacity 0.25s var(--ease-out);
}

.title.spot-on .title-focus {
  opacity: 1;
}

.subtitle {
  margin-top: 10px;
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ============ 搜索框（毛玻璃胶囊） ============ */
.search {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 600px;
  padding: 7px 7px 7px 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  transition: box-shadow var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-spring);
  animation: fade-up var(--dur-3) var(--ease-out) 90ms backwards;
}

.search:focus-within {
  box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.18), var(--glass-shadow);
  transform: scale(1.01);
}

/* 搜索引擎选择器 */
.engine-picker {
  position: relative;
  flex: none;
  display: flex;
  align-items: center;
}

.engine-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px 6px;
  background: none;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease-out);
}

.engine-btn:hover {
  background: var(--hover-bg);
}

.engine-btn:active {
  transform: scale(0.92);
}

.engine-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  /* 引擎 logo 自身带色，徽章透明显示 */
  background: none;
}

/* 所有引擎 logo 统一大小 */
.engine-badge svg,
.engine-badge img,
.menu-badge svg,
.menu-badge img {
  width: 20px;
  height: 20px;
  display: block;
  object-fit: contain;
}

.engine-caret {
  width: 12px;
  height: 12px;
  color: var(--text-secondary);
  transition: transform var(--dur-2) var(--ease-spring);
}

.engine-btn[aria-expanded="true"] .engine-caret {
  transform: rotate(180deg);
}

/* 下拉菜单（玻璃面板 + 弹簧弹出） */
.engine-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 148px;
  padding: 6px;
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  box-shadow: var(--glass-shadow-deep), inset 0 1px 0 var(--glass-highlight);
  z-index: 20;
  transform-origin: top left;
  animation: pop-in var(--dur-2) var(--ease-spring) backwards;
}

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

.engine-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  font-size: 0.875rem;
  color: var(--text);
  background: none;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease-out);
}

.engine-menu button:hover {
  background: var(--hover-bg);
}

.engine-menu button.current {
  color: var(--accent);
  font-weight: 600;
}

.menu-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex: none;
}

.search-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  font-size: 1rem;
  color: var(--text);
  background: transparent;
  border: none;
  outline: none;
}

.search-input::placeholder {
  color: var(--text-secondary);
}

.search-btn {
  flex: none;
  padding: 10px 26px;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--accent);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(10, 132, 255, 0.35);
  transition: transform var(--dur-2) var(--ease-spring), filter var(--dur-1) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}

.search-btn:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 18px rgba(10, 132, 255, 0.45);
}

.search-btn:active {
  transform: scale(0.95);
}

/* ============ 快捷链接（玻璃圆角卡） ============ */
.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  margin-top: 48px;
}

.link-item {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 104px;
  height: 120px;
  padding: 12px 8px;
  text-decoration: none;
  color: var(--text);
  border-radius: 24px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  transition: transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
  /* 交错入场：--i 由 HTML 内联或 JS 渲染时注入，无 JS 时 nth-child 兜底 */
  animation: fade-up var(--dur-3) var(--ease-out) backwards;
  animation-delay: calc(var(--i, 0) * 50ms + 160ms);
}

/* 无 JS 时的默认链接交错兜底 */
.link-item:nth-child(1) { --i: 0; }
.link-item:nth-child(2) { --i: 1; }

.link-item:hover {
  transform: translateY(-5px) scale(1.04);
  border-color: var(--accent);
  box-shadow: var(--glass-shadow-deep), inset 0 1px 0 var(--glass-highlight);
}

.link-item:active {
  transform: scale(0.94);
}

/* 光泽扫过（Liquid Glass 高光） */
.link-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 35%, var(--sheen) 50%, transparent 65%);
  transform: translateX(-130%);
  transition: transform 0.7s var(--ease-out);
  pointer-events: none;
}

.link-item:hover::before {
  transform: translateX(130%);
}

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  font-size: 1.4rem;
  font-weight: 600;
  color: #ffffff;
  border-radius: 18px;
  /* 图标颜色由内联 --c 变量控制，渐变 + 投影增强质感 */
  /* 老浏览器不支持 color-mix 时回退为纯色 */
  background: var(--c);
  background: linear-gradient(135deg, var(--c), color-mix(in srgb, var(--c) 55%, #fff));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--c) 40%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition: transform var(--dur-2) var(--ease-spring);
}

.link-item:hover .link-icon {
  transform: scale(1.08) rotate(-3deg);
}

.link-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--dur-1) var(--ease-out);
}

.link-item:hover .link-name {
  color: var(--text);
}

/* ============ 设置按钮（右上角悬浮玻璃圆钮） ============ */
.settings-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  color: var(--text-secondary);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  cursor: pointer;
  transition: transform var(--dur-2) var(--ease-spring), color var(--dur-1) var(--ease-out);
  animation: fade-down var(--dur-3) var(--ease-out) backwards;
}

.settings-btn svg {
  width: 20px;
  height: 20px;
}

.settings-btn:hover {
  color: var(--text);
  transform: rotate(45deg) scale(1.06);
}

.settings-btn:active {
  transform: rotate(45deg) scale(0.92);
}

/* ============ 设置面板（iOS 弹层） ============ */
.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  animation: fade-in var(--dur-2) var(--ease-out) backwards;
}

.modal-panel {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 82vh;
  overflow-y: auto;
  padding: 24px;
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  box-shadow: var(--glass-shadow-deep), inset 0 1px 0 var(--glass-highlight);
  transform-origin: center;
  animation: pop-in var(--dur-3) var(--ease-spring) backwards;
}

.modal-panel::-webkit-scrollbar {
  width: 8px;
}

.modal-panel::-webkit-scrollbar-thumb {
  background: var(--field-bg);
  border-radius: 999px;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-tip {
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* 链接编辑列表（拖拽插入指示线的定位基准） */
.editor-list {
  position: relative;
}

/* 拖拽插入指示线（iOS 蓝色） */
.drop-indicator {
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.85;
  pointer-events: none;
  z-index: 1;
}

/* 链接编辑行 */
.editor-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

/* 拖拽手柄 */
.row-drag {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 40px;
  font-size: 1rem;
  color: var(--text-secondary);
  cursor: grab;
  touch-action: none;
  transition: color var(--dur-1) var(--ease-out);
}

.row-drag:hover {
  color: var(--text);
}

.row-drag:active {
  cursor: grabbing;
  transform: scale(0.9);
}

/* 拖拽中的行 */
.editor-row.dragging {
  opacity: 0.4;
}

/* 拖拽虚影（玻璃卡片，跟随鼠标） */
.drag-ghost {
  display: flex;
  align-items: center;
  gap: 8px;
  width: auto;
  height: auto;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--glass-shadow-deep);
  opacity: 0.9;
  white-space: nowrap;
  pointer-events: none;
}

/* 编辑输入框（iOS 灰底圆角字段） */
.editor-row input {
  height: 40px;
  padding: 0 12px;
  font-size: 0.875rem;
  color: var(--text);
  background: var(--field-bg);
  border: 1px solid transparent;
  border-radius: 12px;
  outline: none;
  transition: border-color var(--dur-1) var(--ease-out), box-shadow var(--dur-1) var(--ease-out), background-color var(--dur-1) var(--ease-out);
}

.editor-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.18);
}

.editor-row .row-name {
  width: 110px;
  flex: none;
}

.editor-row .row-icon {
  width: 42px;
  flex: none;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
}

.editor-row .row-url {
  flex: 1;
  min-width: 0;
}

.editor-row .row-color {
  width: 42px;
  flex: none;
  padding: 5px;
  cursor: pointer;
}

/* 上移/下移按钮（移动端拖拽不可用时的排序替代，桌面端与拖拽双通道） */
.row-move {
  flex: none;
  width: 30px;
  height: 40px;
  font-size: 1rem;
  line-height: 1;
  color: var(--text-secondary);
  background: var(--field-bg);
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: color var(--dur-1) var(--ease-out), background-color var(--dur-1) var(--ease-out), transform var(--dur-1) var(--ease-spring);
}

.row-move:hover {
  color: var(--text);
  background: var(--hover-bg);
}

.row-move:active {
  transform: scale(0.9);
}

/* 首行/末行的上移/下移按钮置灰 */
.row-move:disabled {
  opacity: 0.35;
  cursor: default;
  transform: none;
}

.row-del {
  flex: none;
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--text-secondary);
  background: var(--field-bg);
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: color var(--dur-1) var(--ease-out), background-color var(--dur-1) var(--ease-out), transform var(--dur-1) var(--ease-spring);
}

.row-del:hover {
  color: #ffffff;
  background: var(--ios-red);
}

.row-del:active {
  transform: scale(0.9);
}

/* 添加按钮（内容强制水平居中） */
.add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
  width: 100%;
  height: 40px;
  margin-top: 12px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(10, 132, 255, 0.08);
  border: 1.5px dashed rgba(10, 132, 255, 0.45);
  border-radius: 14px;
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease-out), border-color var(--dur-1) var(--ease-out), transform var(--dur-1) var(--ease-spring);
}

.add-btn:hover {
  border-color: var(--accent);
  background: rgba(10, 132, 255, 0.14);
}

.add-btn:active {
  transform: scale(0.98);
}

/* 底部操作区 */
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.footer-left {
  display: flex;
  gap: 4px;
}

.modal-actions {
  display: flex;
  gap: 8px;
}

.modal-footer button {
  height: 38px;
  padding: 0 14px;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  transition: transform var(--dur-1) var(--ease-spring), background-color var(--dur-1) var(--ease-out), color var(--dur-1) var(--ease-out), border-color var(--dur-1) var(--ease-out);
}

.modal-footer button:active {
  transform: scale(0.95);
}

.reset-btn {
  color: var(--ios-red);
  background: transparent;
  border: none;
}

.reset-btn:hover {
  background: rgba(255, 59, 48, 0.1);
}

.ghost-btn {
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--glass-border);
}

.ghost-btn:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--accent);
}

/* 无自定义链接时导出备份置灰不可点 */
.ghost-btn:disabled {
  opacity: 0.4;
  cursor: default;
  transform: none;
}

.cancel-btn {
  color: var(--text);
  background: var(--field-bg);
  border: 1px solid transparent;
}

.cancel-btn:hover {
  background: var(--hover-bg);
}

.save-btn {
  color: #ffffff;
  background: var(--accent);
  border: none;
  box-shadow: 0 4px 14px rgba(10, 132, 255, 0.35);
}

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

/* ============ 响应式（手机端） ============ */
@media (max-width: 640px) {
  .page {
    padding-top: 9vh;
    padding-left: 16px;
    padding-right: 16px;
  }

  .title {
    font-size: 2rem;
  }

  /* 搜索框收窄，避免撑满全屏 */
  .search {
    width: 88%;
    max-width: 340px;
    padding-left: 8px;
  }

  .search-btn {
    padding: 10px 18px;
  }

  .links {
    gap: 12px;
    margin-top: 44px;
  }

  .link-item {
    width: 92px;
    height: 112px;
  }

  .link-icon {
    width: 50px;
    height: 50px;
    border-radius: 16px;
  }

  .modal {
    padding: 12px;
  }

  .editor-row {
    flex-wrap: wrap;
    gap: 6px;
  }

  .editor-row .row-name {
    width: 64px;
  }

  .editor-row .row-icon {
    width: 38px;
  }

  .editor-row .row-color {
    width: 38px;
  }

  .row-move {
    width: 26px;
    height: 38px;
  }

  .row-del {
    width: 38px;
    height: 38px;
  }

  /* 网址独占一行，避免挤成窄条 */
  .editor-row .row-url {
    order: 10;
    flex-basis: 100%;
  }
}

/* ============ 轻提示（toast，iOS 深色胶囊） ============ */
#toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translate(-50%, -12px);
  z-index: 200;
  padding: 10px 22px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #ffffff;
  background: rgba(28, 28, 30, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-spring);
}

#toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}