/* ==========================================================================
   🌈 儿童益智小游戏乐园 · 核心样式表 (Kid Web Games Portal)
   精心设计的儿童乐园视觉规范：大圆角、糖果渐变、Q弹动效、iPad触控专属适配
   ========================================================================== */

:root {
  --primary-color: #ff6b81;
  --primary-hover: #ff4757;
  --secondary-color: #70a1ff;
  --accent-color: #ffa502;
  --success-color: #2ed573;
  --purple-color: #a55eea;
  
  --bg-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
  --candy-bg: linear-gradient(180deg, #fff7ed 0%, #fef2f2 40%, #f0fdf4 100%);
  
  --text-main: #2f3542;
  --text-muted: #747d8c;
  --text-light: #ffffff;
  
  --card-shadow: 0 12px 30px -8px rgba(112, 161, 255, 0.18), 0 4px 12px rgba(0, 0, 0, 0.05);
  --card-hover-shadow: 0 20px 40px -10px rgba(255, 107, 129, 0.3), 0 8px 20px rgba(0, 0, 0, 0.08);
  
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-full: 9999px;
  
  --font-family: 'Fredoka', 'ZCOOL KuaiLe', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background: var(--candy-bg);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
  touch-action: manipulation;
}

/* ==================== 顶部背景动效装饰 (云朵与星星) ==================== */
.sky-decoration {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 240px;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.cloud {
  position: absolute;
  font-size: 3rem;
  opacity: 0.45;
  animation: floatCloud 24s linear infinite alternate;
}
.cloud-1 { top: 15px; left: 8%; animation-duration: 22s; }
.cloud-2 { top: 60px; right: 12%; animation-duration: 28s; animation-delay: -5s; }
.cloud-3 { top: 110px; left: 60%; animation-duration: 32s; animation-delay: -10s; }

.star {
  position: absolute;
  font-size: 1.6rem;
  opacity: 0.6;
  animation: twinkle 3s ease-in-out infinite alternate;
}
.star-1 { top: 25px; left: 35%; animation-delay: 0.5s; }
.star-2 { top: 85px; right: 30%; animation-delay: 1.2s; }
.star-3 { top: 40px; right: 5%; animation-delay: 2s; }

@keyframes floatCloud {
  0% { transform: translateX(-30px); }
  100% { transform: translateX(30px); }
}

@keyframes twinkle {
  0% { transform: scale(0.85) rotate(0deg); opacity: 0.4; }
  100% { transform: scale(1.15) rotate(15deg); opacity: 0.9; }
}

/* ==================== 页面容器 ==================== */
.portal-wrapper {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 20px 40px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==================== 头部导航 ==================== */
.portal-header {
  margin-bottom: 24px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  padding: 14px 24px;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
  border: 2px solid rgba(255, 255, 255, 0.9);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(255, 107, 129, 0.35);
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.bounce-hover:hover {
  transform: scale(1.12) rotate(-5deg);
}

.brand-title {
  font-size: 1.55rem;
  font-weight: 700;
  background: linear-gradient(45deg, #ff4757, #ff6b81, #ffa502);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  font-family: inherit;
}

.sound-btn {
  background: #f1f2f6;
  color: var(--text-main);
  border-color: #e4e7eb;
}
.sound-btn:hover {
  background: #e4e7eb;
  transform: translateY(-2px);
}
.sound-btn.muted {
  opacity: 0.75;
  background: #fff0f3;
  color: #ff4757;
}

.disclaimer-btn {
  background: #f1f2f6;
  color: var(--text-main);
  border-color: #e4e7eb;
}
.disclaimer-btn:hover {
  background: #e2e8f0;
  transform: translateY(-2px);
  color: #2f3542;
}

.guide-btn {
  background: linear-gradient(135deg, #70a1ff 0%, #1e90ff 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(30, 144, 255, 0.3);
}
.guide-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(30, 144, 255, 0.4);
}

/* ==================== 问候区 (Hero Section) ==================== */
.hero-section {
  margin-bottom: 32px;
}

.hero-card {
  background: linear-gradient(135deg, #ffffff 0%, #fffbf0 100%);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  text-align: center;
  border: 3px solid #ffeedb;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: #fff0f3;
  color: #ff4757;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  border: 1px solid #ffd4dc;
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 700;
  color: #2f3542;
  margin-bottom: 10px;
  line-height: 1.25;
}

.hero-desc {
  font-size: 1.05rem;
  color: #747d8c;
  max-width: 680px;
  margin: 0 auto 24px;
}

/* 搜索框 */
.search-bar-wrapper {
  position: relative;
  max-width: 580px;
  margin: 0 auto 24px;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 15px 48px 15px 50px;
  border-radius: var(--radius-full);
  border: 2.5px solid #fed330;
  background: #ffffff;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-main);
  box-shadow: 0 4px 14px rgba(254, 211, 48, 0.2);
  transition: all 0.25s ease;
  outline: none;
}

.search-input:focus {
  border-color: #ffa502;
  box-shadow: 0 6px 20px rgba(255, 165, 2, 0.35);
  transform: translateY(-1px);
}

.clear-btn {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: #f1f2f6;
  border: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: 0.8rem;
  cursor: pointer;
  color: #747d8c;
}

/* 分类标签栏 */
.category-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.category-pill {
  padding: 10px 20px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 2px solid #e4e7eb;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 6px;
}

.category-pill:hover {
  border-color: var(--secondary-color);
  transform: translateY(-2px);
  background: #f8faff;
}

.category-pill.active {
  background: linear-gradient(135deg, #ff6b81 0%, #ff4757 100%);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(255, 107, 129, 0.35);
  transform: scale(1.05);
}

/* ==================== 游戏大厅展示区 ==================== */
.games-section {
  flex: 1;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
  padding: 0 6px;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: #2f3542;
}

.game-counter {
  padding: 4px 12px;
  background: #e0f2fe;
  color: #0284c7;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-full);
}

.quick-tips {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* 游戏卡片网格布局 */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 26px;
}

/* 单个游戏卡片 */
.game-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--card-shadow);
  border: 3px solid #f1f2f6;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
  user-select: none;
}

.game-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover-shadow);
  border-color: #ffd4dc;
}

.game-card:active {
  transform: translateY(-2px) scale(0.99);
}

.game-card:hover .btn-play-primary {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 22px rgba(255, 71, 87, 0.45);
}

/* 顶部主题条纹背景 */
.card-header-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
}

.game-icon-bubble {
  width: 74px;
  height: 74px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  position: relative;
  transition: transform 0.3s ease;
}

.game-card:hover .game-icon-bubble {
  transform: rotate(6deg) scale(1.08);
}

.card-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.category-tag {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.badge-math { background: #e0f2fe; color: #0284c7; }
.badge-chinese { background: #ffe4e6; color: #e11d48; }
.badge-logic { background: #f3e8ff; color: #9333ea; }

.age-badge {
  font-size: 0.78rem;
  font-weight: 600;
  background: #f1f2f6;
  color: #57606f;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

/* 卡片文本内容 */
.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-bottom: 22px;
}

.game-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: #2f3542;
  margin-bottom: 4px;
}

.game-subtitle {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.game-desc {
  font-size: 0.93rem;
  color: #57606f;
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
}

/* 标签列表 */
.game-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-item {
  font-size: 0.75rem;
  font-weight: 600;
  background: #f8fafc;
  color: #64748b;
  border: 1px solid #e2e8f0;
  padding: 3px 8px;
  border-radius: 6px;
}

/* 特色亮点 */
.game-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}

.highlight-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fefce8;
  color: #a16207;
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid #fef08a;
}

/* 卡片底部操作按钮 */
.card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 2px dashed #f1f2f6;
}

.candy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none;
}

.btn-play-primary {
  flex: 1;
  padding: 13px 18px;
  font-size: 1.05rem;
  background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(255, 71, 87, 0.35);
}

.btn-play-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 22px rgba(255, 71, 87, 0.45);
}

.btn-icon-square {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #f1f2f6;
  color: #2f3542;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.btn-icon-square:hover {
  background: #e4e7eb;
  transform: translateY(-2px);
}

.btn-icon-square.share-btn:hover {
  background: #e0f2fe;
  color: #0284c7;
  border-color: #bae6fd;
}

/* 空状态卡片 */
.no-results-state {
  text-align: center;
  padding: 60px 20px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  margin-top: 20px;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 12px;
}

.btn-primary {
  padding: 12px 28px;
  background: #ff4757;
  color: #ffffff;
  margin-top: 16px;
  border-radius: var(--radius-full);
}

/* ==================== 底部 Footer ==================== */
.portal-footer {
  margin-top: 50px;
  text-align: center;
  padding: 24px 0 10px;
}

.footer-container {
  max-width: 600px;
  margin: 0 auto;
}

.footer-badge {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  color: #a55eea;
  margin-bottom: 8px;
}

.footer-text {
  font-size: 0.9rem;
  color: #747d8c;
  margin-bottom: 14px;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.footer-link, .footer-link-btn {
  color: #57606f;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.2s;
}

.footer-link:hover, .footer-link-btn:hover {
  color: #ff4757;
}

.dot {
  color: #ced6e0;
}

.copyright {
  font-size: 0.8rem;
  color: #a4b0be;
}

/* ==================== 模态框 1: 内嵌全屏播放器 ==================== */
.game-player-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #1e1e24;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.player-topbar {
  height: 60px;
  background: #2f3542;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 10;
  user-select: none;
}

.player-nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.arcade-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: #475266;
  color: #ffffff;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
}

.arcade-action-btn:hover {
  background: #576574;
}

.back-hub-btn {
  background: #ff4757;
}
.back-hub-btn:hover {
  background: #ff6b81;
}

.active-game-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.active-game-icon {
  font-size: 1.4rem;
}

.active-game-title {
  color: #ffffff;
  font-weight: 700;
  font-size: 1.05rem;
}

.player-nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-highlight {
  background: #2ed573;
}
.btn-highlight:hover {
  background: #26af5f;
}

.player-viewport {
  flex: 1;
  position: relative;
  background: #000000;
  width: 100%;
  height: calc(100vh - 60px);
}

.game-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.iframe-loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #ffffff;
  pointer-events: none;
  z-index: 5;
  transition: opacity 0.3s ease;
}

.spinner-candy {
  font-size: 3.5rem;
  animation: spinCandy 1.5s infinite linear;
  display: inline-block;
  margin-bottom: 12px;
}

@keyframes spinCandy {
  0% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(1.2); }
  100% { transform: rotate(360deg) scale(1); }
}

.spinner-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: #a4b0be;
}

/* ==================== 模态框 2 & 3: 弹窗与遮罩层 ==================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.25s ease;
}

.modal-card {
  background: #ffffff;
  width: 100%;
  max-width: 440px;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-card.modal-large {
  max-width: 620px;
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 18px;
  background: #f1f2f6;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 700;
  color: #747d8c;
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  background: #ff4757;
  color: #ffffff;
}

.modal-icon-badge {
  font-size: 3rem;
  margin-bottom: 8px;
}

.modal-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: #2f3542;
  margin-bottom: 8px;
}

.modal-desc {
  font-size: 0.95rem;
  color: #747d8c;
  margin-bottom: 20px;
}

/* 二维码区域 */
.qrcode-wrapper {
  background: #f8fafc;
  border-radius: var(--radius-md);
  padding: 20px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
  border: 2px dashed #cbd5e1;
}

#qrcodeCanvas {
  display: flex;
  justify-content: center;
}

#qrcodeCanvas img, #qrcodeCanvas canvas {
  border-radius: 8px;
  max-width: 200px;
  max-height: 200px;
}

.url-copy-box {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.share-url-text {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid #e2e8f0;
  background: #f8fafc;
  font-size: 0.85rem;
  color: #64748b;
  outline: none;
}

.copy-url-btn {
  padding: 10px 16px;
  background: #70a1ff;
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.copy-url-btn:hover {
  background: #1e90ff;
}

.scan-hint {
  font-size: 0.82rem;
  color: #8c7ae6;
  background: #f5f3ff;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  text-align: left;
  line-height: 1.45;
}

/* iPad 步骤卡片 */
.guide-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 20px 0;
  text-align: left;
}

.step-card {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 16px 12px;
  position: relative;
}

.step-number {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 22px;
  height: 22px;
  background: #ff6b81;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.step-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #2f3542;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.8rem;
  color: #64748b;
  line-height: 1.4;
}

.guide-footer-tip {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  text-align: left;
}

/* 免责声明内容列表 */
.disclaimer-content-list {
  text-align: left;
  max-height: 52vh;
  overflow-y: auto;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0;
}

.disclaimer-item {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.disclaimer-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 6px;
}

.disclaimer-item-text {
  font-size: 0.86rem;
  color: #64748b;
  line-height: 1.55;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* ==================== 响应式设计 (iPad & 移动端) ==================== */
@media (max-width: 768px) {
  .portal-wrapper {
    padding: 12px 14px 30px;
  }
  
  .hero-card {
    padding: 24px 18px;
  }
  
  .hero-title {
    font-size: 1.6rem;
  }
  
  .hero-desc {
    font-size: 0.95rem;
  }
  
  .games-grid {
    grid-template-columns: 1fr;
  }
  
  .guide-steps-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  
  .btn-text-responsive {
    display: none;
  }
  
  .active-game-title {
    max-width: 140px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}