:root {
  /* 粉/蓝/绿三色极光渐变 */
  --bg-gradient: linear-gradient(-45deg, #e4f9f5, #e0f2fe, #fce7f3, #dcfce7, #fbcfe8);
  --card-bg: rgba(255, 255, 255, 0.65);
  --card-border: rgba(255, 255, 255, 0.85);
  --card-hover-bg: rgba(255, 255, 255, 0.85);
  --primary-color: #007aff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 10px 25px rgba(31, 38, 135, 0.1);
  --header-bg: rgba(255, 255, 255, 0.6);
  --search-bg: rgba(255, 255, 255, 0.82);
  --search-border: rgba(255, 255, 255, 0.95);
  --avatar-bg: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(224,242,254,0.9));
  --modal-bg: rgba(255, 255, 255, 0.85);
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-border: rgba(200, 200, 200, 0.5);
  --admin-bar-bg: rgba(255, 255, 255, 0.85);
  --count-bg: rgba(255, 255, 255, 0.65);
  --glass-blur: blur(20px);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
  background: var(--bg-gradient);
  background-size: 400% 400%;
  animation: dynamicGradient 16s ease infinite;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  position: relative;
  overflow-x: hidden;
}

@keyframes dynamicGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.bg-circle-left {
  position: fixed;
  top: 15%;
  left: 2%;
  width: clamp(320px, 22vw, 480px);
  height: clamp(320px, 22vw, 480px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.45) 0%, rgba(20, 184, 166, 0.35) 60%, transparent 100%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
  animation: floatCircle 14s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

.bg-circle-right {
  position: fixed;
  bottom: 10%;
  right: 3%;
  width: clamp(350px, 24vw, 520px);
  height: clamp(350px, 24vw, 520px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.4) 0%, rgba(236, 72, 153, 0.3) 60%, transparent 100%);
  filter: blur(90px);
  z-index: -1;
  pointer-events: none;
  animation: floatCircle 18s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate-reverse;
}

@keyframes floatCircle {
  0% { transform: translate(0, 0); }
  100% { transform: translate(30px, -35px); }
}

.header {
  background: var(--header-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--card-border);
  padding: 14px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 15px rgba(0,0,0,0.03);
}

.logo {
  font-weight: bold;
  font-size: 18px;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-btn:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary-color);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.15);
}

.header-btn.unlocked {
  background: rgba(0, 122, 255, 0.12);
  color: var(--primary-color);
  border-color: rgba(0, 122, 255, 0.35);
  box-shadow: 0 0 12px rgba(0, 122, 255, 0.2);
}

.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 10px 0 40px;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 30px 20px 25px;
  width: 100%;
}

.hero h1 {
  color: var(--text-main);
  font-size: clamp(28px, 2.2vw, 38px);
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero p {
  color: var(--text-muted);
  font-size: clamp(14px, 1vw, 16px);
  font-weight: 500;
}

.search-container {
  display: flex;
  align-items: center;
  background: var(--search-bg);
  border: 1px solid var(--search-border);
  border-radius: 30px;
  padding: 8px 14px 8px 18px;
  width: clamp(360px, 60vw, 720px);
  max-width: 92%;
  margin-top: 24px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
  transform: none !important;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.search-container:hover {
  background: rgba(255, 255, 255, 0.92);
}

.search-container:focus-within {
  background: rgba(255, 255, 255, 0.98);
  border-color: var(--primary-color);
  box-shadow: 0 6px 22px rgba(0, 122, 255, 0.2);
  transform: none !important;
}

.search-engine-select {
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  padding-right: 10px;
  border-right: 1px solid rgba(0, 0, 0, 0.12);
}

.search-container input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--text-main);
}

.search-btn {
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  padding: 6px 12px;
  font-size: 16px;
  border-radius: 50%;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn:hover {
  color: var(--primary-color);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  width: 100%;
}

@media (max-width: 1024px) { .container { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 650px) { .container { grid-template-columns: 1fr; } }

.category-group { margin-bottom: 5px; }

.category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding: 0 4px;
}

.category-title {
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
}

.category-title i {
  color: var(--primary-color);
}

.edit-cat-btn {
  display: none;
  font-size: 11px;
  color: var(--primary-color);
  background: rgba(0, 122, 255, 0.1);
  border: 1px solid rgba(0, 122, 255, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  cursor: pointer;
  margin-left: 6px;
  font-weight: normal;
}

.edit-cat-btn:hover {
  background: var(--primary-color);
  color: white;
}

body.admin-mode .edit-cat-btn {
  display: inline-block;
}

.category-count {
  background: var(--count-bg);
  color: var(--primary-color);
  border: 1px solid var(--card-border);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

.site-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  min-height: 54px;
  padding: 6px;
  border-radius: 14px;
  border: 2px dashed transparent;
  transition: all 0.25s ease;
}

/* 后台模式下拖拽悬停反馈 */
body.admin-mode .site-list.drag-over {
  border-color: rgba(0, 122, 255, 0.45);
  background: rgba(0, 122, 255, 0.04);
}

.empty-cat-tip {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--text-light);
  padding: 14px 10px;
  text-align: center;
}

.site-card {
  background: var(--card-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 11px 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: var(--text-main);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
              background-color 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

body.admin-mode .site-card {
  cursor: grab;
}

body.admin-mode .site-card:active {
  cursor: grabbing;
}

.site-card.is-dragging {
  opacity: 0.35;
  transform: scale(0.96);
  border: 1px dashed var(--primary-color);
}

.site-card:hover {
  transform: translateY(-2px);
  background: var(--card-hover-bg);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 255, 255, 0.95);
}

.site-card.is-private {
  border-left: 3px solid #f59e0b;
}

.private-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  color: #d97706;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 5px;
  font-weight: normal;
}

.site-info {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.site-avatar-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--avatar-bg);
  border: 1px solid var(--card-border);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.site-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.site-name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
}

.site-url {
  font-size: 11px;
  color: var(--text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.site-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.site-views {
  font-size: 10px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-arrow {
  font-size: 10px;
  color: var(--primary-color);
  opacity: 0.6;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-card:hover .site-arrow {
  transform: translateX(2px);
  opacity: 1;
}

.delete-btn {
  display: none;
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ff4d4f;
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  text-align: center;
  line-height: 20px;
  font-size: 11px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(255, 77, 79, 0.4);
  z-index: 5;
}

body.admin-mode .delete-btn { display: block; }

.admin-bar {
  display: none;
  background: var(--admin-bar-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  max-width: 1280px;
  margin: 0 auto 20px;
  padding: 10px 20px;
  border-radius: 12px;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  width: 100%;
}

body.admin-mode .admin-bar { display: flex; }

.admin-bar-title {
  font-weight: bold;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.admin-bar-btns {
  display: flex;
  gap: 10px;
}

.footer {
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--modal-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 24px;
  border-radius: 16px;
  width: 380px;
  box-shadow: var(--shadow-hover);
}

.modal-content h3 { margin-bottom: 16px; font-size: 16px; }

.form-group { margin-bottom: 12px; }

.form-group label {
  display: block;
  font-size: 12px;
  margin-bottom: 4px;
  color: var(--text-muted);
}

.form-group input, .form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  outline: none;
  background: var(--input-bg);
  color: var(--text-main);
  font-size: 13px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  padding: 7px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}

.btn-primary { background: var(--primary-color); color: white; box-shadow: 0 4px 12px rgba(0, 122, 255, 0.25); }
.btn-secondary { background: rgba(0,0,0,0.06); color: var(--text-muted); }

.btn-import-style {
  background: #ffffff !important;
  color: #007aff !important;
  border: 1px solid #007aff !important;
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.15);
  transition: all 0.25s ease;
}

.btn-import-style:hover {
  background: #f0f7ff !important;
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.25);
  transform: translateY(-1px);
}

.hero h1 .cursor {
  display: inline-block;
  color: var(--primary-color);
  font-weight: 300;
  margin-left: 2px;
  animation: blink 0.8s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* 针对移动端 H5 性能减负 */
@media (max-width: 768px) {
  body {
    animation: none !important;
    background-size: 100% 100% !important;
  }

  .bg-circle-left,
  .bg-circle-right {
    filter: blur(30px) !important;
    animation: none !important;
    opacity: 0.45;
  }

  .site-card,
  .header,
  .search-container,
  .modal-content {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: rgba(255, 255, 255, 0.94) !important;
  }

  .site-list {
    grid-template-columns: 1fr;
  }
}