/* ==================== 优化后的样式文件 ==================== */

:root {
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --border: #334155;
  --accent: #22c55e;
  --accent-light: #4ade80;
  --accent-dark: #16a34a;
  --text: #e2e8f0;
  --text-muted: #a8b3c4;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 4px 16px rgba(34,197,94,0.2);
  --shadow-glow: 0 0 20px rgba(34,197,94,0.3);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-dark);
  color: var(--text);
  font-size: 14px;
  line-height: 1.4;
  min-height: 100vh;
  opacity: 1;
}

@keyframes fadeIn {
  from {
    opacity: 1;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

a {
  color: #60a5fa;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #93c5fd;
}

/* ==================== 导航栏优化 ==================== */
.navbar {
  background: rgba(15,23,42,.98)!important;
  border-bottom: 1px solid var(--border);
  padding: 0.375rem 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(15,23,42,1)!important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.navbar-brand {
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform var(--transition-normal);
}

.navbar-brand:hover {
  transform: scale(1.02);
}

.nav-link {
  color: var(--text-muted)!important;
  padding: 0.375rem 0.5rem!important;
  font-size: 0.825rem;
  position: relative;
  transition: color var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: #fff!important;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0.5rem;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - 1rem);
}

.navbar-toggler {
  padding: 0.25rem 0.5rem;
  transition: transform var(--transition-fast);
}

.navbar-toggler:hover {
  transform: rotate(90deg);
}

/* ==================== Hero 区域优化 ==================== */
.hero {
  padding: 0.875rem 0;
  background: linear-gradient(180deg, #1e293b 0%, var(--bg-dark) 100%);
  border-bottom: 1px solid var(--border);
  animation: slideDown var(--transition-slow) ease;
}

@keyframes slideDown {
  from {
    opacity: 1;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  font-size: 1.35rem;
  margin-bottom: 0.375rem;
  background: linear-gradient(135deg, var(--accent), #10b981, #3b82f6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-fill-color: transparent;
  animation: gradientShift 3s ease infinite;
  background-size: 200% 200%;
}

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

.hero p {
  color: var(--text-muted);
  font-size: 0.825rem;
  margin-bottom: 0.625rem;
}

/* ==================== 按钮优化 ==================== */
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  border: none;
  padding: 0.3125rem 0.75rem;
  font-size: 0.775rem;
  border-radius: 4px;
  transition: all var(--transition-normal);
  box-shadow: 0 2px 8px rgba(34,197,94,0.3);
  position: relative;
  overflow: hidden;
}

.btn-accent::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.btn-accent:hover::before {
  left: 100%;
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.3125rem 0.75rem;
  font-size: 0.775rem;
  border-radius: 4px;
  background: rgba(30,41,59,0.8);
  transition: all var(--transition-normal);
}

.btn-outline:hover {
  background: var(--border);
  color: #fff;
  border-color: var(--border);
  transform: translateY(-1px);
}

.btn-outline:active {
  transform: translateY(0);
}

/* ==================== 统计卡片优化 ==================== */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.625rem;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: default;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--accent);
}

.stat-num {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  transition: color var(--transition-fast);
}

.stat-card:hover .stat-num {
  color: var(--accent-light);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.65rem;
}

/* ==================== 区域标题优化 ==================== */
section {
  padding: 0.75rem 0;
}

.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.625rem;
  padding-bottom: 0.3125rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  animation: fadeInLeft var(--transition-normal) ease;
}

@keyframes fadeInLeft {
  from {
    opacity: 1;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==================== 卡片优化 ==================== */
.card {
  background: linear-gradient(145deg, var(--bg-card), #1a2332);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: all var(--transition-normal);
  margin-bottom: 0;
  height: 100%;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.card:hover::before {
  opacity: 1;
}

.card:active {
  transform: translateY(0);
}

.card-body {
  padding: 0.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-title {
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.card:hover .card-title {
  color: var(--accent-light);
}

.card-text {
  color: var(--text-muted);
  font-size: 0.725rem;
  margin-bottom: 0.375rem;
  flex: 1;
  display: flex;
  align-items: flex-start;
  transition: color var(--transition-fast);
}

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

.card-tags {
  margin-top: auto;
  display: flex;
  gap: 0.25rem;
  margin: -0.125rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.card-tags > * {
  margin: 0.125rem;
}

/* ==================== Badge 优化 ==================== */
.badge {
  font-size: 0.575rem;
  padding: 0.125rem 0.3125rem;
  border-radius: 3px;
  transition: all var(--transition-fast);
}

.badge:hover {
  transform: scale(1.05);
}

.badge-accent {
  background: var(--accent);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.badge-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ==================== 分类标签优化 ==================== */
.category-tabs {
  display: flex;
  gap: 0.375rem;
  margin: -0.1875rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.category-tabs > * {
  margin: 0.1875rem;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.2125rem 0.5625rem;
  border-radius: 1rem;
  font-size: 0.725rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn:hover,
.tab-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(34,197,94,0.3);
}

.tab-btn:active {
  transform: translateY(0);
}

/* ==================== 工具图标优化 ==================== */
.tool-icon {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--accent), #10b981);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.card:hover .tool-icon {
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(34,197,94,0.4);
}

.tool-icon-purple {
  background: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

.tool-icon-blue {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.tool-icon-orange {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

.tool-icon-pink {
  background: linear-gradient(135deg, #ec4899, #db2777);
}

/* ==================== 搜索框优化 ==================== */
.search-box {
  position: relative;
  margin-bottom: 0.5rem;
}

.search-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3125rem 0.75rem 0.3125rem 1.875rem;
  color: var(--text);
  font-size: 0.825rem;
  height: calc(1.5em + 0.625rem);
  transition: all var(--transition-normal);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.15), 0 0 15px rgba(34,197,94,0.2);
}

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

.search-icon {
  position: absolute;
  left: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.search-box:focus-within .search-icon {
  color: var(--accent);
}

/* ==================== 信息框优化 ==================== */
.info-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.625rem;
  margin-bottom: 0;
  transition: all var(--transition-normal);
}

.info-box:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-card-hover);
}

.info-box h5 {
  font-size: 0.825rem;
  margin-bottom: 0.3125rem;
}

.info-box p {
  font-size: 0.725rem;
  color: var(--text-muted);
}

/* ==================== 特性图标优化 ==================== */
.feature-icon {
  width: 32px;
  height: 32px;
  background: rgba(34,197,94,.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.info-box:hover .feature-icon {
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(34,197,94,0.4);
}

/* ==================== 模型 Badge 优化 ==================== */
.model-badge {
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.model-badge:hover {
  transform: scale(1.05);
}

.model-free {
  background: rgba(34,197,94,.2);
  color: var(--accent);
  border: 1px solid rgba(34,197,94,.3);
}

.model-paid {
  background: rgba(249,115,22,.2);
  color: #f97316;
  border: 1px solid rgba(249,115,22,.3);
}

.model-chinese {
  background: rgba(59,130,246,.2);
  color: #60a5fa;
  border: 1px solid rgba(59,130,246,.3);
}

/* ==================== 收藏按钮优化 ==================== */
.favorite-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all var(--transition-fast);
  z-index: 1;
}

.favorite-btn:hover {
  background: rgba(34,197,94,0.1);
  color: var(--accent);
}

.favorite-btn.active {
  color: #fbbf24;
  animation: pulse 0.3s ease;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.favorite-btn:active {
  transform: scale(0.9);
}

/* ==================== 空状态优化 ==================== */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  animation: fadeIn var(--transition-normal) ease;
}

.empty-state i {
  font-size: 3rem;
  opacity: 0.3;
  display: block;
  margin-bottom: 1rem;
}

.empty-state p {
  color: var(--text-muted);
  margin: 0;
}

/* ==================== Footer 优化 ==================== */
footer {
  background: var(--bg-card);
  padding: 0.625rem 0;
  margin-top: 1rem;
  border-top: 1px solid var(--border);
  animation: fadeInUp var(--transition-slow) ease;
}

@keyframes fadeInUp {
  from {
    opacity: 1;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

footer p {
  color: var(--text-muted);
  font-size: 0.7rem;
  margin: 0;
}

.version-info {
  color: var(--accent);
  font-weight: 500;
}

/* ==================== 加载动画 ==================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.loading-overlay.hidden {
  opacity: 1;
  pointer-events: none;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ==================== 搜索高亮 ==================== */
.highlight {
  background: rgba(34,197,94,0.3);
  color: var(--accent-light);
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 500;
}

/* ==================== 移动端优化 ==================== */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.15rem; }
  .hero p { font-size: 0.775rem; }
  .btn-accent,
  .btn-outline {
    padding: 0.25rem 0.625rem;
    font-size: 0.725rem;
  }
  .stat-card { padding: 0.375rem 0.5rem; }
  .stat-num { font-size: 0.9rem; }
  .section-title { font-size: 0.875rem; margin-bottom: 0.5rem; }
  .card-body { padding: 0.4375rem; }
  .card-title { font-size: 0.775rem; }
  .card-text { font-size: 0.675rem; }
  .badge { font-size: 0.525rem; padding: 0.09375rem 0.25rem; }
  .tool-icon { width: 26px; height: 26px; font-size: 0.75rem; }
  .tab-btn { padding: 0.1875rem 0.5rem; font-size: 0.675rem; }
  .search-input { font-size: 0.775rem; padding-left: 1.625rem; }
  footer p { font-size: 0.65rem; }
  .info-box { padding: 0.5rem; }
  .info-box h5 { font-size: 0.775rem; }
  .info-box p { font-size: 0.675rem; }
}

@media (max-width: 576px) {
  .container { padding-left: 0.5rem; padding-right: 0.5rem; }
  .navbar { padding: 0.25rem 0; }
  .hero { padding: 0.625rem 0; }
  .hero h1 { font-size: 1rem; }
  .hero p { font-size: 0.725rem; }
  section { padding: 0.5rem 0; }
  .card-body { padding: 0.375rem; }
  .card { min-height: 120px; }
  .stat-card { padding: 0.25rem 0.375rem; }
  .stat-num { font-size: 0.8rem; }
  .stat-label { font-size: 0.575rem; }
  .tab-btn { padding: 0.15rem 0.4375rem; font-size: 0.65rem; }
  footer { padding: 0.5rem 0; }
}

/* ==================== 触摸反馈优化 ==================== */
@media (hover: none) {
  .card:active {
    transform: scale(0.98);
    background: var(--bg-card);
  }

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

  .btn-accent:active,
  .btn-outline:active {
    transform: scale(0.95);
  }

  .favorite-btn:active {
    transform: scale(0.8);
  }
}

/* ==================== 滚动条优化 ==================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ==================== 选择优化 ==================== */
::selection {
  background: rgba(34,197,94,0.3);
  color: var(--accent-light);
}

/* ==================== 打印优化 ==================== */
@media print {
  .navbar,
  .search-box,
  .category-tabs,
  footer {
    display: none;
  }

  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  body {
    background: white;
    color: black;
  }
}