/* ===== CSS Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: #0f0f13;
  color: #f8fafc;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== CSS Variables ===== */
:root {
  --primary: #7B61FF;
  --secondary: #00D8C8;
  --bg-dark: #0f0f13;
  --bg-header: #16161e;
  --bg-card: #1c1c26;
  --text-primary: #f8fafc;
  --text-secondary: #8a8a9a;
  --border: #2a2a38;
  --shadow: rgba(0, 0, 0, 0.4);
}

/* ===== Container ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===================================================
   HEADER - 两行结构
   第一行: Logo ← | → 搜索框（Grid 绝对居中） | ← 功能区 →
   第二行: 分类导航（常驻显示，均匀间距，不换行）
   =================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-header);
}

/* ─── 第一行 ─── */
.header-row1 {
  height: 68px;
  border-bottom: 1px solid var(--border);
}

/* CSS Grid 三列：左1fr | 中auto | 右1fr
   左右等宽 → 中间搜索框永远在视觉正中央 */
.header-row1-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
}

/* Logo → 左列靠左 */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  justify-self: start;
  flex-shrink: 0;
}

.logo-icon-box {
  font-size: 20px;
  background: linear-gradient(135deg, #7B61FF, #5a44cc);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

/* 搜索框 → 中列，宽度固定，自然居中 */
.header-search-wrap {
  width: 480px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon-inline {
  position: absolute;
  left: 16px;
  color: var(--text-secondary);
  pointer-events: none;
  flex-shrink: 0;
}

.header-search-input {
  width: 100%;
  height: 42px;
  padding: 0 18px 0 46px;
  background-color: #111118;
  border: 1.5px solid var(--border);
  border-radius: 21px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.header-search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(123, 97, 255, 0.15);
}

/* 功能区 → 右列靠右 */
.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
  justify-self: end;
}

.header-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s;
}

.header-link:hover {
  color: var(--text-primary);
}

.mobile-menu-btn {
  display: none;
  color: var(--text-primary);
  padding: 4px;
}

/* ─── 第二行：分类导航 ─── */
.header-row2 {
  border-bottom: 1px solid var(--border);
  background-color: var(--bg-header);
}

/* 内容宽度与第一行对齐，overflow 横向滚动 */
.header-row2-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 46px;
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.header-row2-inner::-webkit-scrollbar {
  display: none;
}

/* 每个分类 tab：左右 padding 控制间距，无 gap */
.cat-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 11px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
  border-bottom: 2px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}

.cat-tab:hover {
  color: var(--text-primary);
  border-bottom-color: rgba(123, 97, 255, 0.4);
}

.cat-tab.active,
.cat-tab-all {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ===== Search Overlay ===== */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.92);
  z-index: 200;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 100px;
}

.search-overlay.active {
  display: flex;
}

.search-overlay-content {
  width: 100%;
  max-width: 600px;
  padding: 0 20px;
}

.search-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 40px;
  color: var(--text-primary);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.2s;
}

.search-close:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.search-input {
  width: 100%;
  padding: 18px 24px;
  font-size: 18px;
  background-color: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--primary);
}

.search-results {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

/* ===== Main Content ===== */
main {
  min-height: calc(100vh - 115px - 240px);
  padding: 36px 0 80px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary);
  border-left: 4px solid var(--primary);
  padding-left: 14px;
}

/* ===== Games Grid ===== */
.games-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  margin-bottom: 48px;
}

.game-card {
  background-color: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
  border: 1px solid var(--border);
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px var(--shadow);
}

.game-thumbnail {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: #111;
}

.game-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.game-card:hover .game-thumbnail img {
  transform: scale(1.06);
}

.game-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s;
}

.game-card:hover .game-overlay {
  opacity: 1;
}

.play-btn {
  background: linear-gradient(135deg, var(--primary), #5a44cc);
  color: #fff;
  padding: 10px 24px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
  transition: transform 0.2s;
}

.play-btn:hover {
  transform: scale(1.06);
}

.game-info {
  padding: 12px 14px;
}

.game-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.game-category {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ===================================================
   FOOTER - 方案A：品牌区 + 三列 + 底部横条
   =================================================== */
.site-footer {
  background-color: var(--bg-header);
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
  margin-top: 60px;
}

/* 品牌区：Logo + 描述，底部有分割线 */
.footer-brand {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-bottom: 32px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.footer-logo-icon {
  font-size: 22px;
}

.footer-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

/* 三列区域 */
.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 36px;
}

.footer-col h4 {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 11px;
}

.footer-col ul li a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

/* 社媒文案 */
.footer-social-note {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 16px;
}

/* 社媒图标按钮 */
.footer-social-links {
  display: flex;
  gap: 10px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.social-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  background-color: rgba(123, 97, 255, 0.1);
}

/* 底部横条：版权左 + 合规声明右 */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 13px;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-legal a {
  color: var(--text-secondary);
  font-size: 13px;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--text-primary);
}

.footer-divider {
  color: var(--border);
  font-size: 13px;
}

/* ===== Mobile Bottom Nav ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-header);
  border-top: 1px solid var(--border);
  padding: 8px 0;
  z-index: 100;
}

.mobile-bottom-nav .nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  color: var(--text-secondary);
  font-size: 11px;
  transition: color 0.2s;
}

.mobile-bottom-nav .nav-item:hover,
.mobile-bottom-nav .nav-item.active {
  color: var(--primary);
}

/* 移动端分类弹窗 */
.mobile-categories-modal {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.92);
  z-index: 200;
  overflow-y: auto;
  padding: 20px;
}

.mobile-categories-modal.active {
  display: block;
}

.mobile-categories-content {
  max-width: 480px;
  margin: 60px auto 0;
}

.mobile-categories-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.mobile-categories-header h2 {
  color: var(--primary);
  font-size: 22px;
}

.mobile-categories-close {
  font-size: 34px;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-categories-list {
  display: grid;
  gap: 12px;
}

.mobile-categories-list .category-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s;
}

.mobile-categories-list .category-item:hover {
  background-color: rgba(123,97,255,0.12);
  border-color: var(--primary);
}

/* ===== Language Switcher ===== */
.lang-switcher {
  position: relative;
  flex-shrink: 0;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: rgba(123, 97, 255, 0.08);
  border: 1.5px solid rgba(123, 97, 255, 0.25);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.lang-btn:hover {
  background: rgba(123, 97, 255, 0.18);
  border-color: var(--primary);
  color: var(--text-primary);
}

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-header);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  min-width: 150px;
  z-index: 300;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  /* 两列排列 */
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.lang-dropdown.open {
  display: grid;
}

.lang-option {
  display: block;
  width: 100%;
  padding: 7px 10px;
  text-align: left;
  color: var(--text-secondary);
  font-size: 13px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.lang-option:hover {
  background: rgba(123, 97, 255, 0.15);
  color: var(--text-primary);
}

.lang-option.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(123, 97, 255, 0.1);
}

/* 移动端隐藏语言切换器文字，只显示图标 */
@media (max-width: 680px) {
  .lang-btn span#langCurrent { display: none; }
  .lang-dropdown { right: 0; min-width: 140px; }
}

/* ===== No Games ===== */
.no-games {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-size: 18px;
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 1200px) {
  .games-grid { grid-template-columns: repeat(4, 1fr); }
  .header-search-wrap { width: 380px; }
}

@media (max-width: 960px) {
  .games-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-columns { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { flex-direction: column; align-items: flex-start; gap: 12px; }
  /* 平板：搜索框缩窄，内边距减小 */
  .header-row1-inner { padding: 0 20px; gap: 16px; }
  .header-search-wrap { width: 300px; }
  .header-row2-inner { padding: 0 20px; }
}

@media (max-width: 680px) {
  .games-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  /* 移动端 header：flex 布局 */
  .header-row1-inner { display: flex; padding: 0 16px; gap: 12px; }
  .header-search-wrap { width: auto; flex: 1; }
  .header-right .header-link { display: none; }
  .mobile-menu-btn { display: block; }
  .header-row1 { height: 56px; }
  /* 分类导航缩小 */
  .header-row2-inner { padding: 0 16px; height: 42px; }
  .cat-tab { padding: 0 10px; font-size: 13px; gap: 5px; }
  /* 移动端 footer：单列 */
  .footer-columns { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { flex-direction: column; gap: 10px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  /* 底部导航 */
  .mobile-bottom-nav { display: flex; }
  main { padding-bottom: 90px; }
}