* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 全局禁止横向滚动条 */
html,
body {
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

:root {
  --bg-main: #050510;
  --bg-gradient: radial-gradient(circle at 50% 50%, #121230, #050510);
  --grid-bg: #101228;
  --grid-border: #2b2b5a;
  --accent-color: #8a6dff;
  --menu-bg: rgba(15, 15, 40, 0.9);
  --text-color: #fff;
  --btn-hover: #6b52e8;
}

body.light {
  --bg-main: #f5f7ff;
  --bg-gradient: radial-gradient(circle at 50% 50%, #e8ecff, #f5f7ff);
  --grid-bg: #fff;
  --grid-border: #d0d6f0;
  --accent-color: #5c44cc;
  --menu-bg: rgba(255, 255, 255, 0.95);
  --text-color: #222;
  --btn-hover: #4a34b8;
}

body {
  min-height: 100vh;
  background: var(--bg-main);
  background: var(--bg-gradient);
  transition: 0.4s;
  padding: 10px;
  padding-bottom: 50px;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 6px;
  padding: 4px;
  width: 100%;
  justify-content: flex-start;
}

.grid-item {
  position: relative;
  z-index: 1;
  background: var(--grid-bg);
  border: 1px solid var(--grid-border);
  border-radius: 5px;
  overflow: hidden;
  transition: 0.3s ease;
  aspect-ratio: 1/1;
}
.grid-item:hover {
  z-index: 9999 !important;
  transform: scale(1.5);
}

.grid-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s;
}
.grid-item img.loaded {
  opacity: 1;
}

.grid-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
  border: 2px solid #444;
  border-top-color: #8a6dff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  z-index: 1;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  z-index: 99999999;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.side-menu-wrap {
  position: fixed;
  z-index: 999999;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.menu-trigger {
  position: absolute;
  right: 0;
  top: 0;
  width: 12px;
  height: 100vh;
}
.side-menu {
  background: var(--menu-bg);
  width: 52px;
  padding: 22px 0;
  border-radius: 6px 0 0 6px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.2);
}
.menu-trigger:hover + .side-menu,
.side-menu:hover {
  transform: translateX(0);
}
.menu-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-color);
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}
.menu-btn:hover {
  background: var(--btn-hover);
  color: #fff;
}

.loading-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #050510;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999999;
  color: #fff;
  gap: 20px;
}
.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #2a2a5a;
  border-top-color: #8a6dff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}