/* ============ 火焰纹章资料站 - 暗金中世纪主题 ============ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700;900&family=Cinzel:wght@400;600;700;900&display=swap');

:root {
  --bg-primary: #0d0d1a;
  --bg-secondary: #151528;
  --bg-card: #1a1a35;
  --bg-card-hover: #222245;
  --text-primary: #e8e0d0;
  --text-secondary: #b0a89a;
  --text-muted: #706858;
  --gold: #c9a84c;
  --gold-light: #e4cc7a;
  --gold-dark: #8a6d2b;
  --accent: #c0392b;
  --accent-light: #e74c3c;
  --blue: #3498db;
  --green: #27ae60;
  --border: #2a2a40;
  --border-light: #3a3a55;
  --shadow: 0 4px 20px rgba(0,0,0,0.5);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior:smooth; font-size:16px; }

body {
  font-family: 'Noto Serif SC', 'SimSun', 'STSong', serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height:1.8;
  min-height:100vh;
  overflow-x:hidden;
}

/* 滚动条 */
::-webkit-scrollbar { width:8px; }
::-webkit-scrollbar-track { background:var(--bg-primary); }
::-webkit-scrollbar-thumb { background:var(--gold-dark); border-radius:4px; }
::-webkit-scrollbar-thumb:hover { background:var(--gold); }

/* ============ 页头 ============ */
.header {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(13,13,26,0.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:0 2rem;
}
.header-inner {
  max-width:1400px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  height:64px;
}
.logo { display:flex; align-items:center; gap:12px; }
.logo-icon {
  font-size:28px; color:var(--gold);
  filter:drop-shadow(0 0 8px rgba(201,168,76,0.5));
}
.logo-text {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:1.3rem; font-weight:700; color:var(--gold-light);
  letter-spacing:2px;
}
.logo-sub {
  font-size:0.65rem; color:var(--text-muted);
  letter-spacing:3px; text-transform:uppercase;
  display:block; line-height:1;
}

.nav { display:flex; gap:4px; }
.nav-link {
  color:var(--text-secondary); text-decoration:none;
  padding:8px 16px; border-radius:8px; font-size:0.9rem;
  transition:var(--transition); position:relative;
}
.nav-link:hover, .nav-link.active {
  color:var(--gold-light); background:rgba(201,168,76,0.1);
}
.nav-link.active::after {
  content:''; position:absolute; bottom:0; left:50%; transform:translateX(-50%);
  width:20px; height:2px; background:var(--gold); border-radius:1px;
}

.mobile-menu-btn {
  display:none; background:none; border:none;
  color:var(--text-primary); font-size:1.5rem; cursor:pointer;
}

/* ============ 页面区域 ============ */
.page-section {
  display:none; max-width:1400px; margin:0 auto;
  padding:100px 2rem 4rem; min-height:80vh;
}
.page-section.active { display:block; }

.section-title {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:2rem; font-weight:700; color:var(--gold-light);
  margin-bottom:0.5rem; letter-spacing:2px;
}
.section-desc { color:var(--text-secondary); margin-bottom:2rem; font-size:1rem; }

/* ============ Hero ============ */
.hero {
  position:relative; min-height:85vh;
  display:flex; align-items:center; justify-content:center;
  margin:-100px -2rem 2rem; overflow:hidden;
  background:radial-gradient(ellipse at center, #1a1a3a 0%, #0d0d1a 70%);
}
.hero-bg {
  position:absolute; inset:0; opacity:0.06;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 35px, var(--gold) 35px, var(--gold) 36px),
    repeating-linear-gradient(-45deg, transparent, transparent 35px, var(--gold) 35px, var(--gold) 36px);
}
.hero-content { position:relative; text-align:center; padding:2rem; }
.hero-emblem { margin-bottom:2rem; }
.emblem-circle {
  width:120px; height:120px; margin:0 auto;
  border:3px solid var(--gold); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:3rem; color:var(--gold);
  box-shadow:0 0 40px rgba(201,168,76,0.3), inset 0 0 20px rgba(201,168,76,0.1);
  animation:emblemPulse 3s ease-in-out infinite;
}
@keyframes emblemPulse {
  0%,100% { box-shadow:0 0 40px rgba(201,168,76,0.3), inset 0 0 20px rgba(201,168,76,0.1); }
  50% { box-shadow:0 0 60px rgba(201,168,76,0.5), inset 0 0 30px rgba(201,168,76,0.2); }
}
.hero-title {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:4rem; font-weight:900; color:var(--gold-light);
  letter-spacing:12px; margin-bottom:0.5rem;
  text-shadow:0 0 30px rgba(201,168,76,0.3);
}
.hero-subtitle {
  font-family:'Cinzel',serif;
  font-size:1.2rem; color:var(--text-muted);
  letter-spacing:6px; margin-bottom:1.5rem;
}
.hero-desc {
  color:var(--text-secondary); font-size:1.05rem;
  max-width:600px; margin:0 auto 2rem; line-height:2;
}
.hero-stats { display:flex; justify-content:center; gap:3rem; margin-bottom:2.5rem; }
.stat-item { text-align:center; }
.stat-num {
  display:block; font-family:'Cinzel',serif;
  font-size:2.5rem; font-weight:900; color:var(--gold-light);
}
.stat-label { font-size:0.85rem; color:var(--text-muted); }

.hero-btns { display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 28px; border-radius:50px; font-size:0.95rem;
  font-family:'Noto Serif SC',serif; cursor:pointer;
  transition:var(--transition); text-decoration:none; border:none;
  font-weight:600; letter-spacing:1px;
}
.btn-primary {
  background:linear-gradient(135deg, var(--gold-dark), var(--gold));
  color:#0d0d1a; box-shadow:0 4px 15px rgba(201,168,76,0.3);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 25px rgba(201,168,76,0.5); }
.btn-outline {
  border:2px solid var(--gold); color:var(--gold-light);
  background:transparent;
}
.btn-outline:hover { background:rgba(201,168,76,0.1); transform:translateY(-2px); }

/* ============ 时代卡片 ============ */
.home-section { margin:3rem 0; }
.era-cards, .game-cards {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(320px, 1fr));
  gap:1.5rem;
}
.era-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:1.8rem;
  transition:var(--transition); cursor:pointer;
  position:relative; overflow:hidden;
}
.era-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--gold), var(--accent));
  transform:scaleX(0); transition:transform 0.4s;
}
.era-card:hover { transform:translateY(-4px); border-color:var(--gold); box-shadow:var(--shadow); }
.era-card:hover::before { transform:scaleX(1); }
.era-card .era-icon { font-size:2.5rem; margin-bottom:0.8rem; }
.era-card .era-name {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:1.2rem; font-weight:700; color:var(--gold-light);
  margin-bottom:0.3rem;
}
.era-card .era-range { font-size:0.8rem; color:var(--text-muted); margin-bottom:0.8rem; }
.era-card .era-desc { font-size:0.9rem; color:var(--text-secondary); line-height:1.6; }

/* ============ 游戏卡片 ============ */
.game-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); overflow:hidden;
  transition:var(--transition); cursor:pointer;
  position:relative;
}
.game-card:hover { transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--gold); }
.game-card .card-header {
  padding:1.5rem 1.5rem 1rem;
  border-bottom:1px solid var(--border);
  position:relative;
}
.game-card .card-header::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background:var(--game-color, var(--gold));
}
.game-card .card-platform {
  display:inline-block; padding:3px 10px; border-radius:4px;
  font-size:0.7rem; font-weight:700; letter-spacing:1px;
  background:rgba(201,168,76,0.15); color:var(--gold-light);
  margin-bottom:0.8rem;
}
.game-card .card-title {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:1.3rem; font-weight:700; color:var(--text-primary);
  margin-bottom:0.2rem;
}
.game-card .card-title-en { font-size:0.75rem; color:var(--text-muted); }
.game-card .card-body { padding:1rem 1.5rem 0; }
.game-card .card-summary {
  font-size:0.85rem; color:var(--text-secondary); line-height:1.6;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.game-card .card-footer {
  padding:1rem 1.5rem 1.5rem;
  display:flex; justify-content:space-between; align-items:center;
}
.game-card .card-date { font-size:0.8rem; color:var(--text-muted); }
.game-card .card-arrow { color:var(--gold); font-size:1.1rem; }

/* ============ 年代线 ============ */
.timeline { position:relative; padding:2rem 0; }
.timeline::before {
  content:''; position:absolute; left:50%; top:0; bottom:0;
  width:2px; background:linear-gradient(to bottom, var(--gold-dark), var(--gold), var(--gold-dark));
  transform:translateX(-50%);
}
.timeline-controls { display:flex; gap:0.5rem; flex-wrap:wrap; margin-bottom:2rem; }
.era-filter-btn {
  padding:6px 16px; border:1px solid var(--border); border-radius:20px;
  background:transparent; color:var(--text-secondary);
  font-size:0.85rem; cursor:pointer; transition:var(--transition);
  font-family:'Noto Serif SC',serif;
}
.era-filter-btn:hover, .era-filter-btn.active {
  background:rgba(201,168,76,0.15); color:var(--gold-light); border-color:var(--gold);
}

.timeline-item {
  position:relative; width:46%; padding:1.5rem; margin-bottom:2rem;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); transition:var(--transition);
}
.timeline-item:nth-child(odd) { margin-right:auto; }
.timeline-item:nth-child(even) { margin-left:auto; }
.timeline-item::after {
  content:''; position:absolute; top:30px;
  width:16px; height:16px; background:var(--gold);
  border-radius:50%; border:3px solid var(--bg-primary);
  box-shadow:0 0 10px rgba(201,168,76,0.5);
}
.timeline-item:nth-child(odd)::after { right:-10px; }
.timeline-item:nth-child(even)::after { left:-10px; }
.timeline-item:hover { transform:translateY(-2px); box-shadow:var(--shadow); cursor:pointer; }

.timeline-item .tl-era {
  font-size:0.75rem; color:var(--gold); font-weight:700; letter-spacing:2px;
  text-transform:uppercase; margin-bottom:0.5rem;
}
.timeline-item .tl-title {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:1.15rem; font-weight:700; color:var(--text-primary);
}
.timeline-item .tl-platform {
  display:inline-block; padding:2px 8px; border-radius:3px;
  font-size:0.7rem; background:rgba(201,168,76,0.1); color:var(--gold-light);
  margin:0.5rem 0;
}
.timeline-item .tl-summary {
  font-size:0.85rem; color:var(--text-secondary); line-height:1.6;
}

/* ============ 平台浏览 ============ */
.platform-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(180px, 1fr));
  gap:1rem; margin-bottom:2rem;
}
.platform-card {
  background:var(--bg-card); border:2px solid var(--border);
  border-radius:var(--radius); padding:1.5rem 1rem; text-align:center;
  cursor:pointer; transition:var(--transition);
}
.platform-card:hover { border-color:var(--gold); transform:translateY(-3px); box-shadow:var(--shadow); }
.platform-card.active { border-color:var(--gold); background:rgba(201,168,76,0.05); }
.platform-card .pf-icon { font-size:2.5rem; margin-bottom:0.8rem; }
.platform-card .pf-name { font-weight:700; color:var(--text-primary); font-size:0.9rem; }
.platform-card .pf-desc { font-size:0.75rem; color:var(--text-muted); margin-top:0.3rem; }

/* ============ 筛选栏 ============ */
.game-filter-bar {
  display:flex; gap:1.5rem; flex-wrap:wrap; margin-bottom:2rem;
  padding:1rem 1.5rem; background:var(--bg-card); border-radius:var(--radius);
  border:1px solid var(--border); align-items:center;
}
.filter-group { display:flex; align-items:center; gap:0.5rem; }
.filter-group label { color:var(--text-secondary); font-size:0.9rem; white-space:nowrap; }
.filter-group select {
  padding:6px 12px; border:1px solid var(--border); border-radius:6px;
  background:var(--bg-secondary); color:var(--text-primary);
  font-family:'Noto Serif SC',serif; font-size:0.85rem; cursor:pointer;
}

/* ============ 搜索 ============ */
.search-box {
  display:flex; gap:0.5rem; margin-bottom:2rem; max-width:600px;
}
.search-box input {
  flex:1; padding:14px 20px; border:2px solid var(--border);
  border-radius:50px; background:var(--bg-card); color:var(--text-primary);
  font-family:'Noto Serif SC',serif; font-size:1rem; outline:none;
  transition:var(--transition);
}
.search-box input:focus { border-color:var(--gold); }
.search-box button {
  padding:14px 28px; border:none; border-radius:50px;
  background:linear-gradient(135deg, var(--gold-dark), var(--gold));
  color:#0d0d1a; font-family:'Noto Serif SC',serif;
  font-weight:600; cursor:pointer; transition:var(--transition);
  font-size:0.95rem;
}
.search-box button:hover { transform:translateY(-2px); }
.search-results .no-results {
  text-align:center; padding:3rem; color:var(--text-muted);
  font-size:1.1rem;
}
.search-result-item {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:1.2rem 1.5rem; margin-bottom:0.8rem;
  cursor:pointer; transition:var(--transition);
}
.search-result-item:hover { border-color:var(--gold); background:var(--bg-card-hover); }
.search-result-item .sr-title { font-weight:700; color:var(--gold-light); }
.search-result-item .sr-type {
  display:inline-block; padding:2px 8px; border-radius:3px;
  font-size:0.7rem; background:rgba(201,168,76,0.1); color:var(--gold-light);
  margin-left:0.5rem;
}
.search-result-item .sr-desc { font-size:0.85rem; color:var(--text-secondary); margin-top:0.3rem; }

/* ============ 游戏详情弹窗 ============ */
.modal-overlay {
  display:none; position:fixed; inset:0; z-index:200;
  background:rgba(0,0,0,0.8); backdrop-filter:blur(4px);
  justify-content:center; align-items:flex-start;
  padding:2rem; overflow-y:auto;
}
.modal-overlay.active { display:flex; }
.modal {
  background:var(--bg-secondary); border:1px solid var(--border);
  border-radius:var(--radius); width:100%; max-width:1000px;
  margin:auto; position:relative; overflow:hidden;
}
.modal::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background:var(--game-color, var(--gold));
}
.modal-close {
  position:absolute; top:16px; right:20px; z-index:10;
  background:rgba(0,0,0,0.5); border:none; color:var(--text-primary);
  font-size:1.8rem; cursor:pointer; width:40px; height:40px;
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  transition:var(--transition);
}
.modal-close:hover { background:var(--accent); }
.modal-content { padding:3rem 2.5rem 2.5rem; max-height:80vh; overflow-y:auto; }

.modal-game-header { margin-bottom:2rem; }
.modal-game-title {
  font-family:'Cinzel','Noto Serif SC',serif;
  font-size:2.2rem; font-weight:900; color:var(--gold-light);
  letter-spacing:3px;
}
.modal-game-meta {
  display:flex; gap:1.5rem; flex-wrap:wrap; margin-top:0.8rem;
  font-size:0.85rem; color:var(--text-muted);
}
.modal-game-meta span { display:flex; align-items:center; gap:0.3rem; }

/* 弹窗选项卡 */
.modal-tabs {
  display:flex; gap:0; border-bottom:2px solid var(--border); margin-bottom:2rem;
  overflow-x:auto;
}
.modal-tab {
  padding:10px 24px; border:none; background:transparent;
  color:var(--text-secondary); font-family:'Noto Serif SC',serif;
  font-size:0.95rem; cursor:pointer; transition:var(--transition);
  border-bottom:2px solid transparent; margin-bottom:-2px;
  white-space:nowrap;
}
.modal-tab:hover { color:var(--gold-light); }
.modal-tab.active { color:var(--gold-light); border-bottom-color:var(--gold); }

.modal-tab-content { display:none; }
.modal-tab-content.active { display:block; }

/* 概览 */
.overview-summary { font-size:1rem; color:var(--text-primary); line-height:2; margin-bottom:1.5rem; }
.feature-list { list-style:none; margin-bottom:1.5rem; }
.feature-list li {
  padding:0.6rem 0; padding-left:1.5rem; position:relative;
  color:var(--text-secondary); font-size:0.95rem;
}
.feature-list li::before {
  content:'◆'; position:absolute; left:0; color:var(--gold);
  font-size:0.6rem; top:50%; transform:translateY(-50%);
}
.legacy-box {
  background:rgba(201,168,76,0.05); border:1px solid var(--border-light);
  border-radius:var(--radius-sm); padding:1.2rem 1.5rem;
  border-left:3px solid var(--gold);
}
.legacy-box h4 { color:var(--gold-light); font-size:0.9rem; margin-bottom:0.5rem; }
.legacy-box p { font-size:0.9rem; color:var(--text-secondary); line-height:1.7; }

/* 剧情 */
.story-block { margin-bottom:1.5rem; }
.story-block h4 { color:var(--gold-light); font-size:0.95rem; margin-bottom:0.5rem; }
.story-block p { font-size:0.95rem; color:var(--text-secondary); line-height:1.9; }

/* 角色 */
.char-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(260px, 1fr)); gap:1rem; }
.char-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:1.2rem;
  transition:var(--transition);
}
.char-card:hover { border-color:var(--gold); }
.char-card .char-header { display:flex; align-items:center; gap:0.8rem; margin-bottom:0.8rem; }
.char-avatar {
  width:44px; height:44px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; color:#fff; flex-shrink:0;
}
.char-name { font-weight:700; color:var(--text-primary); font-size:1rem; }
.char-name-en { font-size:0.75rem; color:var(--text-muted); }
.char-meta { display:flex; gap:0.5rem; flex-wrap:wrap; margin-bottom:0.5rem; }
.char-meta span {
  font-size:0.7rem; padding:2px 8px; border-radius:3px;
  background:rgba(201,168,76,0.1); color:var(--gold-light);
}
.char-desc { font-size:0.82rem; color:var(--text-secondary); line-height:1.7; }

/* 职业 */
.class-tags { display:flex; flex-wrap:wrap; gap:0.5rem; }
.class-tag {
  padding:4px 12px; border-radius:20px;
  background:rgba(201,168,76,0.08); color:var(--text-secondary);
  font-size:0.8rem; border:1px solid var(--border);
}

/* 攻略 */
.guide-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:1.2rem 1.5rem; margin-bottom:1rem;
  border-left:3px solid var(--gold);
}
.guide-card h4 { color:var(--gold-light); font-size:0.95rem; margin-bottom:0.5rem; }
.guide-card p { font-size:0.9rem; color:var(--text-secondary); line-height:1.8; }

/* 原声 */
.soundtrack-info { font-size:0.95rem; color:var(--text-secondary); line-height:2; }
.soundtrack-info ul { list-style:none; margin-top:0.5rem; }
.soundtrack-info li {
  padding:0.3rem 0; padding-left:1.2rem; position:relative;
}
.soundtrack-info li::before {
  content:'♪'; position:absolute; left:0; color:var(--gold);
}

/* ============ 图片展示 ============ */
.media-empty {
  text-align:center; padding:3rem 1rem; color:var(--text-secondary); font-size:1rem;
}
.media-section {
  margin-bottom:2rem;
}
.media-section h4 {
  color:var(--gold-light); font-size:1rem; margin-bottom:1rem;
  padding-bottom:0.5rem; border-bottom:1px solid var(--border);
}
.media-section h4 i { margin-right:0.4rem; }

/* 封面图 */
.boxart-container {
  text-align:center; margin:0 auto; max-width:320px;
}
.boxart-img {
  width:100%; max-width:300px; border-radius:var(--radius-sm);
  border:2px solid var(--border-light); box-shadow:var(--shadow);
  display:block; margin:0 auto; transition:transform var(--transition);
  background:var(--bg-secondary);
}
.boxart-img:hover {
  transform:scale(1.03); border-color:var(--gold);
}
.boxart-caption {
  margin-top:0.6rem; font-size:0.85rem; color:var(--text-muted);
}

/* 截图画廊 */
.screenshot-gallery {
  display:grid; grid-template-columns:repeat(auto-fill, minmax(260px, 1fr));
  gap:1rem;
}
.screenshot-item {
  cursor:pointer; overflow:hidden; border-radius:var(--radius-sm);
  border:2px solid var(--border); transition:all var(--transition);
  background:var(--bg-secondary);
}
.screenshot-item:hover {
  border-color:var(--gold-light); transform:translateY(-2px); box-shadow:var(--shadow);
}
.screenshot-img {
  width:100%; display:block; min-height:140px; background:var(--bg-secondary);
  object-fit:cover; aspect-ratio:4/3;
}
.screenshot-caption {
  padding:0.5rem 0.8rem; font-size:0.83rem; color:var(--text-muted);
  text-align:center;
}

/* 截图放大 */
.screenshot-item.expanded {
  position:fixed; top:50%; left:50%; z-index:10000;
  transform:translate(-50%, -50%);
  width:90vw; max-width:900px; max-height:90vh;
  border-color:var(--gold); box-shadow:0 0 60px rgba(0,0,0,0.8);
}
.screenshot-item.expanded .screenshot-img {
  aspect-ratio:auto; max-height:75vh; object-fit:contain;
}
.screenshot-item.expanded .screenshot-caption {
  font-size:1rem; color:var(--text-primary); background:var(--bg-primary);
  padding:0.8rem 1rem;
}
.screenshot-item.expanded::after {
  content:'✕'; position:absolute; top:10px; right:15px;
  font-size:1.5rem; color:var(--text-primary); cursor:pointer;
  background:rgba(0,0,0,0.6); width:36px; height:36px;
  line-height:36px; text-align:center; border-radius:50%;
}

/* 图片加载失败占位 */
.img-placeholder {
  width:100%; min-height:120px; display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  background:var(--bg-secondary); border-radius:var(--radius-sm);
  border:2px dashed var(--border); color:var(--text-muted);
  font-size:0.85rem; gap:0.5rem;
}
.img-placeholder i { font-size:2rem; opacity:0.5; }

/* 卡片上的封面缩略图 */
.card-cover {
  width:100%; height:140px; object-fit:cover; border-radius:var(--radius-sm) var(--radius-sm) 0 0;
  background:var(--bg-secondary);
}

/* 移动端 */
@media (max-width:768px) {
  .screenshot-gallery { grid-template-columns:repeat(auto-fill, minmax(150px, 1fr)); gap:0.6rem; }
  .boxart-container { max-width:200px; }
  .screenshot-item.expanded { width:95vw; }
}

/* ============ 返回顶部 ============ */
.back-to-top {
  position:fixed; bottom:2rem; right:2rem; z-index:50;
  width:44px; height:44px; border-radius:50%;
  background:var(--bg-card); border:1px solid var(--border);
  color:var(--gold); font-size:1.2rem; cursor:pointer;
  transition:var(--transition); opacity:0; visibility:hidden;
  display:flex; align-items:center; justify-content:center;
}
.back-to-top.visible { opacity:1; visibility:visible; }
.back-to-top:hover { background:var(--gold); color:#0d0d1a; }

/* ============ 页脚 ============ */
.site-footer {
  text-align:center; padding:2rem; color:var(--text-muted);
  font-size:0.85rem; border-top:1px solid var(--border);
  background:var(--bg-secondary);
}
.site-footer a { color:var(--gold); text-decoration:none; }

/* ============ 响应式 ============ */
@media (max-width:768px) {
  .hero-title { font-size:2.2rem; letter-spacing:6px; }
  .hero-subtitle { font-size:0.9rem; letter-spacing:3px; }
  .hero-stats { gap:1.5rem; }
  .stat-num { font-size:1.8rem; }
  .hero-btns { flex-direction:column; align-items:center; }
  .era-cards, .game-cards { grid-template-columns:1fr; }
  .char-grid { grid-template-columns:1fr; }

  /* 移动端导航 */
  .nav {
    display:none; position:fixed; top:64px; left:0; right:0;
    background:rgba(13,13,26,0.98); flex-direction:column;
    padding:1rem; border-bottom:1px solid var(--border);
  }
  .nav.open { display:flex; }
  .mobile-menu-btn { display:block; }

  /* 年代线移动端 */
  .timeline::before { left:20px; }
  .timeline-item { width:calc(100% - 50px); margin-left:50px !important; }
  .timeline-item::after { left:-26px !important; }

  /* 弹窗 */
  .modal-content { padding:2rem 1.5rem; }
  .modal-game-title { font-size:1.5rem; }

  .game-filter-bar { flex-direction:column; gap:0.8rem; }
  .platform-grid { grid-template-columns:repeat(2, 1fr); }
}

@media (max-width:480px) {
  .header { padding:0 1rem; }
  .page-section { padding:80px 1rem 2rem; }
  .section-title { font-size:1.4rem; }
  .platform-grid { grid-template-columns:1fr 1fr; }
  .modal-tabs { gap:0; }
  .modal-tab { padding:8px 12px; font-size:0.8rem; }
}