/* ==================== 墨战 · 纯CSS水墨风格 v16 ==================== */
/* v16: 16篇目 + 动态地图 + 通关双按钮 + 篇目完成庆祝动画 + 题量增加 */

:root {
  --paper: #f0ead6;
  --ink: #1a1a1a;
  --ink-light: #3a3a3a;
  --ink-dim: #6a6a6a;
  --red: #c23b22;
  --red-light: #e85d44;
  --gold: #8b6914;
  --gold-light: #b8941a;
  --purple: #8e44ad;
  --water: rgba(40,60,80,0.15);
  --card-bg: rgba(245,240,232,0.95);
  --card-bg-solid: rgba(245,240,232,0.92);
  --border-ink: rgba(26,26,26,0.35);
  --base-size: 18px;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { font-size: var(--base-size); }

body {
  font-family: 'KaiTi','楷体','STKaiti','FangSong','仿宋','SimSun','宋体',serif;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(35,35,35,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(35,35,35,0.04) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(60,80,100,0.03) 0%, transparent 60%),
    linear-gradient(180deg, #c8b890 0%, #d8ccb0 12%, #e8dcc0 28%, #f0ead6 42%, #e6dac0 60%, #ede2c8 78%, #f0ead6 100%);
  background-attachment: fixed;
  color: var(--ink);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
}

/* ==================== 屏幕切换 ==================== */
.screen {
  position: fixed; top:0; left:0; width:100%; height:100%;
  z-index: 10;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(35,35,35,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(35,35,35,0.04) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(60,80,100,0.03) 0%, transparent 60%),
    linear-gradient(180deg, #c8b890 0%, #d8ccb0 12%, #e8dcc0 28%, #f0ead6 42%, #e6dac0 60%, #ede2c8 78%, #f0ead6 100%);
  background-attachment: fixed;
}
.screen.active { display: flex; }

/* ==================== 首页 ==================== */
#top-tools {
  position: absolute; top: 1rem; right: 1rem;
  display: flex; gap: 0.6rem; z-index: 20;
}
.tool-btn {
  width: 44px; height: 44px;
  border: 1.5px solid var(--border-ink);
  border-radius: 50%;
  background: var(--card-bg);
  font-size: 20px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 20;
}
.tool-btn:hover { background: rgba(26,26,26,0.12); transform: scale(1.1); }

#home-title {
  margin: 2rem 0 1rem 0;
  text-align: center;
  position: relative; z-index: 15;
}
.title-main {
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: 0.3em;
  animation: titleAppear 1.5s ease-out;
  text-shadow: 3px 3px 0 rgba(26,26,26,0.10);
  position: relative;
}
.title-main::after {
  content: '';
  position: absolute; bottom: -8px; left: 5%; right: 5%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--ink), transparent);
}
.title-sub {
  font-size: 1.4rem;
  color: var(--ink-dim);
  letter-spacing: 0.5em;
  margin-top: 0.5rem;
}
@keyframes titleAppear {
  0% { opacity: 0; transform: translateY(-30px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* 作者信息（固定不动，仅首页） */
#author-info {
  display: flex; flex-direction: row;
  align-items: center;
  color: var(--red);
  font-size: 1rem;
  margin: 0.8rem 0 1.5rem 0;
  gap: 0.3rem;
  position: relative; z-index: 15;
}
.author-label { color: var(--ink-dim); }
.author-name { font-weight: bold; }
.author-id { font-weight: bold; }
.author-sep { color: var(--red); }

#home-buttons {
  display: flex; flex-direction: column;
  gap: 0.8rem;
  align-items: center;
  position: relative; z-index: 15;
}

/* ==================== 按钮 ==================== */
.btn {
  padding: 0.75rem 2rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s;
  min-width: 180px;
  text-align: center;
  letter-spacing: 0.1em;
  position: relative; z-index: 15;
}
.btn-primary {
  background: rgba(26,26,26,0.12);
  color: var(--ink);
  font-weight: bold;
  letter-spacing: 0.15em;
}
.btn-primary:hover {
  background: rgba(26,26,26,0.22);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,26,26,0.12);
}
.btn-secondary {
  background: var(--card-bg);
  color: var(--ink-light);
}
.btn-secondary:hover { background: rgba(245,240,232,1); transform: translateY(-1px); }
.btn-pk {
  background: rgba(142,68,173,0.12);
  color: var(--purple);
  border-color: rgba(142,68,173,0.4);
  font-weight: bold;
  letter-spacing: 0.15em;
}
.btn-pk:hover {
  background: rgba(142,68,173,0.22);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(142,68,173,0.12);
}
.btn-link {
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 1rem;
  min-width: auto;
}
.btn-link:hover { color: var(--ink); }
.btn-back {
  background: none;
  border: 1px solid var(--border-ink);
  color: var(--ink-dim);
  padding: 0.4rem 0.8rem;
  font-size: 0.9rem;
  min-width: auto;
  letter-spacing: 0.05em;
}
.btn-back:hover { color: var(--ink); background: rgba(26,26,26,0.06); }
.btn-exit {
  background: rgba(192,57,43,0.10);
  border: 1px solid rgba(192,57,43,0.4);
  color: var(--red);
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  min-width: auto;
  border-radius: 4px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
}
.btn-exit:hover { background: rgba(192,57,43,0.25); }
.btn-wrong {
  background: rgba(139,105,20,0.10);
  border: 1px solid rgba(139,105,20,0.4);
  color: var(--gold);
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  min-width: auto;
  border-radius: 4px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
}
.btn-wrong:hover { background: rgba(139,105,20,0.22); }
.btn-card-lib {
  background: rgba(142,68,173,0.10);
  border: 1px solid rgba(142,68,173,0.4);
  color: var(--purple);
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  min-width: auto;
  border-radius: 4px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
}
.btn-card-lib:hover { background: rgba(142,68,173,0.22); }
.btn-row { display: flex; gap: 0.8rem; }
.btn-center { display: block; margin: 0.3rem auto; text-align: center; }
.hidden { display: none !important; }

/* ==================== 面板 ==================== */
.panel {
  background: var(--card-bg-solid);
  border: 2px solid var(--border-ink);
  border-radius: 8px;
  padding: 1.5rem;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  position: relative;
  box-shadow: 0 4px 20px rgba(26,26,26,0.10);
  z-index: 15;
}
.panel-ink::before {
  content: '';
  position: absolute; top: -3px; left: 5%; right: 5%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--ink-light), transparent);
  border-radius: 2px;
}
.panel-title {
  font-size: 1.6rem;
  text-align: center;
  letter-spacing: 0.2em;
  margin-bottom: 1.2rem;
  position: relative;
}
.panel-title::after {
  content: '';
  display: block;
  width: 40%;
  margin: 0.5rem auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-ink), transparent);
}
.scrollable { overflow-y: auto; max-height: 60vh; padding-right: 0.5rem; }

/* ==================== 创建角色 ==================== */
.form-group { margin-bottom: 1rem; }
.form-group label {
  font-size: 1rem;
  color: var(--ink-dim);
  margin-bottom: 0.3rem;
  display: block;
  letter-spacing: 0.05em;
}
.form-group input, .form-group select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 4px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 1rem;
  position: relative; z-index: 15;
}

/* ==================== 地图（秘境版块风格） ==================== */
#screen-map {
  justify-content: flex-start;
  padding: 0;
}
#map-header {
  position: absolute; top: 0; left: 0; right: 0;
  padding: 0.8rem 1rem;
  z-index: 20;
}
#map-title-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.3rem;
  flex-wrap: wrap;
}
#map-realm-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--ink);
  letter-spacing: 0.3em;
}
.guest-badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border: 1px solid rgba(192,57,43,0.4);
  border-radius: 12px;
  background: rgba(192,57,43,0.10);
  color: var(--red);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}
.map-user-info {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border: 1px solid rgba(74,103,65,0.4);
  border-radius: 12px;
  background: rgba(74,103,65,0.10);
  color: #4a6741;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}
#top-tools-map {
  position: absolute; top: 1rem; right: 1rem;
  display: flex; gap: 0.6rem; z-index: 20;
}
#map-container {
  width: 100%; max-width: 500px;
  margin: 4rem auto 0;
  position: relative; z-index: 15;
  overflow-y: auto;
  max-height: 80vh;
  padding: 0.5rem;
}
#map-realm-desc {
  text-align: center;
  font-size: 0.95rem;
  color: var(--ink-dim);
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}
#map-cards {
  display: flex; flex-direction: column;
  gap: 0;
  position: relative; z-index: 15;
}
/* 秘境版块卡片 */
.map-card {
  border: 2.5px solid var(--card-color);
  border-radius: 10px;
  background: rgba(245,240,232,0.92);
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
  box-shadow: 0 3px 12px rgba(26,26,26,0.08);
}
.map-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(26,26,26,0.15);
  background: rgba(245,240,232,1);
}
.map-card-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}
.map-card-num {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--card-color);
  min-width: 2rem;
  text-align: center;
}
.map-card-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--ink);
  letter-spacing: 0.15em;
}
.map-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-bottom: 0.4rem;
}
.map-card-author {
  font-size: 0.95rem;
  color: var(--ink-dim);
}
.map-card-boss {
  font-size: 0.95rem;
  color: var(--card-color);
  font-weight: bold;
}
.map-card-diff {
  font-size: 0.9rem;
  color: var(--gold);
}
.map-card-desc {
  font-size: 0.9rem;
  color: var(--ink-dim);
  font-style: italic;
  padding-top: 0.3rem;
  border-top: 1px dashed var(--border-ink);
}
.map-card-upload {
  border-style: dashed;
  background: rgba(142,68,173,0.06);
}
.map-card-upload:hover {
  background: rgba(142,68,173,0.15);
}
/* 路径连接线 */
.map-path-connector {
  width: 3px;
  height: 24px;
  margin: 0 auto;
  background: linear-gradient(180deg, var(--border-ink), rgba(26,26,26,0.1));
  border-radius: 2px;
  position: relative; z-index: 15;
}
.map-path-connector::after {
  content: '▼';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: var(--ink-dim);
}

#map-player-bar {
  position: absolute; bottom: 1rem; left: 1rem; right: 1rem;
  position: relative; z-index: 15;
}
#player-hp-bar {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.9rem;
}
.hp-fill {
  height: 10px; border-radius: 5px;
  background: linear-gradient(90deg, var(--red), var(--red-light));
  transition: width 0.5s;
}

/* ==================== 关卡选择 ==================== */
.level-list {
  display: flex; flex-direction: column;
  gap: 0.8rem;
  padding: 0.5rem;
}
.level-card {
  border: 2.5px solid var(--border-ink);
  border-radius: 10px;
  background: rgba(245,240,232,0.92);
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
  box-shadow: 0 3px 12px rgba(26,26,26,0.08);
}
.level-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(26,26,26,0.15);
  background: rgba(245,240,232,1);
}
.level-header {
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}
.level-num {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: 0.05em;
}
.level-name {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--ink);
  letter-spacing: 0.15em;
}
.level-badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: bold;
  letter-spacing: 0.05em;
}
.level-badge-done {
  background: rgba(74,103,65,0.15);
  border: 1px solid rgba(74,103,65,0.4);
  color: #4a6741;
}
.level-badge-open {
  background: rgba(139,105,20,0.12);
  border: 1px solid rgba(139,105,20,0.4);
  color: var(--gold);
}
.level-badge-locked {
  background: rgba(26,26,26,0.08);
  border: 1px solid var(--border-ink);
  color: var(--ink-dim);
}
.level-subtitle {
  font-size: 0.95rem;
  color: var(--ink-dim);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}
.level-info {
  display: flex; gap: 1rem;
  font-size: 0.9rem;
  color: var(--ink-light);
  flex-wrap: wrap;
}
.level-diff { color: var(--gold); font-weight: bold; }
.level-boss { color: var(--red); font-weight: bold; }
.level-qs { color: var(--ink-dim); }

/* 关卡锁定状态 */
.level-card.level-locked {
  opacity: 0.55;
  cursor: not-allowed;
  border-color: var(--ink-dim);
  background: rgba(200,200,200,0.12);
  box-shadow: none;
}
.level-card.level-locked:hover {
  transform: none;
  box-shadow: none;
  background: rgba(200,200,200,0.12);
}

/* 关卡已完成状态 */
.level-card.level-completed {
  border-color: #4a6741;
  background: rgba(74,103,65,0.06);
}
.level-card.level-completed:hover {
  border-color: #4a6741;
  background: rgba(74,103,65,0.12);
}
.level-lock-tip {
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin-top: 0.3rem;
  text-align: center;
  letter-spacing: 0.05em;
}

/* ==================== BOSS介绍 ==================== */
.boss-name {
  font-size: 1.8rem;
  text-align: center;
  letter-spacing: 0.25em;
}
.boss-meta {
  text-align: center;
  font-size: 1rem;
  color: var(--ink-dim);
  margin-bottom: 0.8rem;
  letter-spacing: 0.1em;
}
.boss-desc {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  padding: 0.8rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.7);
}
.boss-stats {
  display: flex; justify-content: center; gap: 1.5rem;
  margin-bottom: 1rem;
}
.stat { display: flex; align-items: center; gap: 0.4rem; }
.stat-label { font-size: 1rem; color: var(--ink-dim); }
.stat-val { font-size: 1.2rem; font-weight: bold; }

/* ==================== 全文展示 ==================== */
.fulltext-content {
  font-size: 1.05rem;
  line-height: 2;
  padding: 0.8rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.75);
  white-space: pre-wrap;
}

/* ==================== 战斗界面 ==================== */
#screen-battle {
  justify-content: flex-start;
  padding: 0.4rem 0.5rem;
  align-items: center;
}
#battle-top {
  width: 100%; max-width: 700px;
  margin: 0 auto 0.3rem;
  position: relative; z-index: 15;
}
#battle-header-bar {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 0.2rem 0.5rem;
  margin-bottom: 0.3rem;
}
#battle-header-left {
  display: flex; align-items: center; gap: 0.6rem;
}
#battle-progress {
  font-size: 0.95rem; color: var(--ink-dim);
  letter-spacing: 0.1em; font-weight: bold;
}
#battle-hp-row {
  display: flex; justify-content: space-between;
  padding: 0.2rem 0.5rem;
  font-size: 1rem;
}
#enemy-info, #player-info-battle {
  display: flex; flex-direction: column; gap: 0.3rem;
}
#enemy-hp-bar, #player-hp-bar-battle {
  width: 100%; max-width: 140px;
  height: 8px; border-radius: 4px;
  background: rgba(26,26,26,0.08);
  overflow: hidden;
}
#enemy-hp-fill {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, #c0392b, #e74c3c);
  transition: width 0.5s;
  width: 100%;
}
#player-hp-fill-battle {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width 0.5s;
  width: 100%;
}

#battle-middle {
  width: 100%; max-width: 680px;
  margin: 0 auto 0.5rem;
  position: relative; z-index: 15;
}
.ink-box {
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.82);
  padding: 0.8rem;
  margin-bottom: 0.5rem;
  position: relative;
}
.ink-box::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-ink), transparent);
}
.excerpt-label, .question-label {
  font-size: 0.9rem;
  color: var(--ink-dim);
  margin-bottom: 0.3rem;
  letter-spacing: 0.1em;
}
#excerpt-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--ink);
}
#question-text {
  font-size: 1.1rem;
  line-height: 1.5;
  font-weight: bold;
}

/* 译注提示框 */
.translate-hint {
  border: 2px solid var(--gold);
  border-radius: 6px;
  background: rgba(139,105,20,0.08);
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.5rem;
  font-size: 1rem;
  color: var(--ink-light);
  line-height: 1.6;
}
.translate-hint .hint-label {
  font-size: 0.85rem;
  color: var(--gold);
  font-weight: bold;
  margin-bottom: 0.2rem;
  letter-spacing: 0.1em;
}
.translate-hint .hint-content {
  font-size: 1.05rem;
  color: var(--ink);
}

/* ==================== 连线匹配题 ==================== */
.matching-area {
  width: 100%; max-width: 680px;
  margin: 0 auto 0.5rem;
  position: relative; z-index: 15;
}
.matching-area.hidden { display: none; }
.matching-instruction {
  text-align: center; font-size: 0.95rem;
  color: var(--ink-dim); margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}
.matching-container {
  display: flex; gap: 0.8rem;
  justify-content: center;
  margin-bottom: 0.8rem;
}
.matching-col {
  flex: 1; max-width: 300px;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.matching-col-title {
  text-align: center; font-size: 0.9rem;
  color: var(--ink-dim); font-weight: bold;
  letter-spacing: 0.1em; margin-bottom: 0.2rem;
}
.match-item {
  padding: 0.6rem 0.8rem;
  border: 2px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 1.05rem;
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  position: relative; z-index: 15;
  line-height: 1.4;
}
.match-item:hover {
  background: rgba(26,26,26,0.06);
  transform: translateY(-1px);
}
.match-item.selected {
  background: rgba(139,105,20,0.15);
  border-color: var(--gold);
  box-shadow: 0 0 12px rgba(139,105,20,0.2);
}
.match-item.paired {
  background: rgba(74,103,65,0.10);
  border-color: rgba(74,103,65,0.5);
}
.match-item.paired .pair-num {
  position: absolute; top: -8px; right: -8px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--gold); color: #fff;
  font-size: 0.8rem; font-weight: bold;
  display: flex; align-items: center; justify-content: center;
}
.match-item.match-correct {
  background: rgba(74,103,65,0.20);
  border-color: #4a6741;
}
.match-item.match-wrong {
  background: rgba(192,57,43,0.15);
  border-color: #c23b22;
}
#btn-match-confirm {
  display: block; margin: 0.5rem auto 0;
  min-width: 160px;
}
#btn-match-confirm:disabled {
  opacity: 0.4; cursor: not-allowed;
}

/* 辅助卡牌 */
#battle-cards {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  width: 100%; max-width: 680px;
  margin-left: auto; margin-right: auto;
  position: relative; z-index: 15;
  flex-wrap: wrap;
  justify-content: center;
}
#assist-cards-row {
  display: flex; gap: 0.4rem; flex-wrap: wrap;
}
.assist-card-btn {
  padding: 0.6rem 0.9rem;
  border: 2px solid var(--border-ink);
  border-radius: 6px;
  background: var(--card-bg);
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  position: relative; z-index: 15;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  box-shadow: 0 2px 8px rgba(26,26,26,0.06);
}
.assist-card-btn:hover {
  background: rgba(26,26,26,0.08);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26,26,26,0.12);
}
.assist-card-btn.used {
  opacity: 0.35;
  pointer-events: none;
}
.card-count {
  font-size: 0.8rem;
  color: var(--red);
  font-weight: bold;
  margin-left: 0.2rem;
}

#battle-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  width: 100%; max-width: 680px;
  margin-left: auto; margin-right: auto;
  position: relative; z-index: 15;
}
.option-btn {
  padding: 0.7rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 1.05rem;
  cursor: pointer;
  transition: all 0.3s;
  text-align: left;
  line-height: 1.4;
  position: relative; z-index: 15;
}
.option-btn:hover {
  background: rgba(26,26,26,0.08);
  transform: translateY(-1px);
}
.option-btn.correct {
  background: rgba(74,103,65,0.25);
  border-color: rgba(74,103,65,0.7);
  color: #4a6741;
  font-weight: bold;
}
.option-btn.wrong {
  background: rgba(192,57,43,0.18);
  border-color: rgba(192,57,43,0.6);
  color: #c0392b;
}
.option-btn.eliminated {
  opacity: 0.25;
  pointer-events: none;
}

#battle-result {
  margin-top: 0.5rem;
  width: 100%; max-width: 680px;
  margin-left: auto; margin-right: auto;
  position: relative; z-index: 15;
}
#battle-result.hidden { display: none; }
#result-icon { font-size: 2rem; text-align: center; }
#result-text { text-align: center; font-size: 1.1rem; margin: 0.3rem 0; font-weight: bold; }

/* 卡牌奖励 */
#card-reward {
  margin: 1rem 0;
  text-align: center;
}
#card-reward.hidden { display: none; }
#card-reward h3 { font-size: 1.2rem; color: var(--gold); letter-spacing: 0.1em; }
#reward-cards-row {
  display: flex; gap: 0.5rem;
  justify-content: center;
  margin-top: 0.5rem;
}
.reward-card-display {
  padding: 0.5rem 0.8rem;
  border: 2px solid var(--gold);
  border-radius: 6px;
  background: rgba(139,105,20,0.08);
  font-size: 1rem;
  letter-spacing: 0.05em;
}

/* 战斗动态效果 —— v10增强版 */
.battle-correct { animation: battleCorrect 0.8s ease-out; }
@keyframes battleCorrect {
  0% { background-color: transparent; box-shadow: inset 0 0 0 rgba(74,103,65,0); }
  30% { background-color: rgba(74,103,65,0.12); box-shadow: inset 0 0 80px rgba(74,103,65,0.25), 0 0 40px rgba(74,103,65,0.2); }
  100% { background-color: transparent; box-shadow: inset 0 0 0 rgba(74,103,65,0); }
}
.battle-wrong { animation: battleWrong 0.7s ease-out; }
@keyframes battleWrong {
  0% { background-color: transparent; box-shadow: inset 0 0 0 rgba(192,57,43,0); transform: translateX(0); }
  15% { background-color: rgba(192,57,43,0.10); box-shadow: inset 0 0 60px rgba(192,57,43,0.30), 0 0 30px rgba(192,57,43,0.18); transform: translateX(-8px); }
  30% { transform: translateX(8px); }
  45% { transform: translateX(-6px); }
  60% { transform: translateX(4px); }
  75% { transform: translateX(-2px); }
  100% { background-color: transparent; box-shadow: inset 0 0 0 rgba(192,57,43,0); transform: translateX(0); }
}
.shake { animation: shake 0.4s ease-out; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

/* 选项按钮答对/答错状态 */
.option-btn.correct {
  background: rgba(74,103,65,0.25) !important;
  border-color: #4a6741 !important;
  color: #2d4a2d !important;
  animation: optionCorrect 0.5s ease-out;
}
@keyframes optionCorrect {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); background: rgba(74,103,65,0.40); }
  100% { transform: scale(1); }
}
.option-btn.wrong {
  background: rgba(192,57,43,0.20) !important;
  border-color: #c23b22 !important;
  color: #8b1a1a !important;
  animation: optionWrong 0.5s ease-out;
}
@keyframes optionWrong {
  0% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  50% { transform: translateX(4px); }
  75% { transform: translateX(-2px); }
  100% { transform: translateX(0); }
}

/* ==================== PK模式 ==================== */
#screen-pk-battle { justify-content: flex-start; padding: 0.8rem; }
#pk-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.3rem 0.5rem;
  position: relative; z-index: 15;
}
#pk-round-info {
  font-size: 1rem;
  color: var(--ink-dim);
  letter-spacing: 0.1em;
}
#pk-container {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  min-height: 50vh;
  position: relative; z-index: 15;
}
.pk-side {
  flex: 1;
  display: flex; flex-direction: column;
  padding: 0.5rem;
  border: 2px solid var(--border-ink);
  border-radius: 8px;
  background: rgba(255,255,255,0.85);
}
.pk-player-header {
  display: flex; justify-content: space-between;
  font-size: 1.1rem; font-weight: bold;
  padding: 0.3rem;
  border-bottom: 2px solid var(--border-ink);
  letter-spacing: 0.1em;
}
.pk-excerpt { font-size: 1rem; line-height: 1.6; padding: 0.4rem; }
.pk-question { font-size: 1.05rem; font-weight: bold; padding: 0.3rem; }
.pk-options {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0.3rem; padding: 0.3rem;
}
.pk-opt-btn {
  padding: 0.5rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 4px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s;
  line-height: 1.3;
  position: relative; z-index: 15;
}
.pk-opt-btn.selected-correct { background: rgba(74,103,65,0.25); border-color: #4a6741; font-weight: bold; }
.pk-opt-btn.selected-wrong { background: rgba(192,57,43,0.18); border-color: #c0392b; }
.pk-result { font-size: 1rem; text-align: center; padding: 0.4rem; font-weight: bold; }
.pk-result.hidden { display: none; }

/* PK对战动画 */
.pk-side.pk-correct {
  animation: pkCorrectGlow 0.8s ease-out;
}
@keyframes pkCorrectGlow {
  0% { border-color: var(--border-ink); box-shadow: none; background: rgba(255,255,255,0.85); }
  40% { border-color: #4a6741; box-shadow: 0 0 25px rgba(74,103,65,0.35); background: rgba(74,103,65,0.08); }
  100% { border-color: var(--border-ink); box-shadow: none; background: rgba(255,255,255,0.85); }
}
.pk-side.pk-wrong {
  animation: pkWrongShake 0.7s ease-out;
}
@keyframes pkWrongShake {
  0% { border-color: var(--border-ink); transform: translateX(0); background: rgba(255,255,255,0.85); }
  15% { border-color: #c23b22; box-shadow: 0 0 25px rgba(192,57,43,0.30); background: rgba(192,57,43,0.06); transform: translateX(-6px); }
  30% { transform: translateX(6px); }
  50% { transform: translateX(-3px); }
  70% { transform: translateX(3px); }
  100% { border-color: var(--border-ink); box-shadow: none; transform: translateX(0); background: rgba(255,255,255,0.85); }
}

/* PK选项答对/答错 */
.pk-opt-btn.correct {
  background: rgba(74,103,65,0.22) !important; border-color: #4a6741 !important; color: #2d4a2d !important;
}
.pk-opt-btn.wrong {
  background: rgba(192,57,43,0.18) !important; border-color: #c0392b !important; color: #8b1a1a !important;
}

/* 滚动容器 */
.pk-scrollable {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  width: 100%; padding: 0 0.2rem;
  -webkit-overflow-scrolling: touch;
}
.battle-scrollable {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  width: 100%; max-width: 700px; margin: 0 auto;
  padding: 0 0.5rem;
  -webkit-overflow-scrolling: touch;
  display: flex; flex-direction: column; align-items: center;
}
.map-scrollable {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  width: 100%; padding: 0.8rem;
  -webkit-overflow-scrolling: touch;
}

/* 战斗退出按钮（在header-bar中，无需绝对定位） */
.battle-exit-btn {
  font-size: 0.9rem;
}
.btn-prev {
  background: none;
  border: 1px solid var(--border-ink);
  color: var(--ink-dim);
  padding: 0.4rem 0.8rem;
  font-size: 0.9rem;
  min-width: auto;
  border-radius: 4px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.05em;
}
.btn-prev:hover:not(:disabled) { color: var(--ink); background: rgba(26,26,26,0.06); }
.btn-prev:disabled { opacity: 0.35; cursor: not-allowed; }

/* 战斗页"阅读原文"按钮居中 */
.btn-battle-fulltext {
  display: block;
  margin: 0.3rem auto 0.5rem;
  min-width: 160px;
  text-align: center;
  position: relative; z-index: 15;
}
#pk-divider {
  width: 2px; background: var(--border-ink);
  align-self: stretch;
}
#pk-timer-bar {
  width: 100%;
  height: 24px;
  background: rgba(26,26,26,0.08);
  border-radius: 12px;
  margin: 0.5rem 0;
  position: relative;
  overflow: hidden;
  z-index: 15;
}
#pk-timer-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--red));
  border-radius: 12px;
  transition: width 0.5s linear;
  width: 100%;
}
#pk-timer-text {
  position: absolute; top:0; left:50%;
  transform: translateX(-50%);
  font-size: 0.85rem; color: var(--ink-dim);
  line-height: 24px;
}

/* PK设置页 */
.pk-register {
  display: flex; gap: 1rem;
}
.pk-player-form {
  flex: 1;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  padding: 0.8rem;
  background: rgba(255,255,255,0.7);
}
.pk-player-form h3 { font-size: 1.1rem; text-align: center; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.pk-player-form input {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border-ink);
  border-radius: 4px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 0.4rem;
  position: relative; z-index: 15;
}
.pk-time-setting {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 1rem 0 0.5rem 0;
}
.pk-time-setting label { font-size: 1rem; color: var(--ink-dim); }
.pk-time-setting select {
  padding: 0.4rem 0.8rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 4px;
  background: rgba(255,255,255,0.85);
  font-family: inherit;
  font-size: 1rem;
  position: relative; z-index: 15;
}
.pk-upload-row {
  text-align: center;
  margin: 0.5rem 0 0.8rem 0;
}

/* PK结果 */
#pk-result-detail {
  padding: 0.8rem;
  text-align: center;
}
/* PK结果分栏布局 */
.pk-result-columns {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 1rem;
  margin: 1rem 0;
}
.pk-result-side {
  flex: 1;
  max-width: 280px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border: 2px solid var(--border-ink);
  border-radius: 10px;
  background: rgba(255,255,255,0.85);
  position: relative;
  overflow: hidden;
}
.pk-result-side.pk-result-winner {
  border-color: #4a6741;
  background: rgba(74,103,65,0.08);
  box-shadow: 0 0 20px rgba(74,103,65,0.15);
}
.pk-result-side.pk-result-loser {
  border-color: var(--ink-dim);
  background: rgba(60,60,60,0.06);
}
.pk-result-anim {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
}
.pk-result-name {
  font-size: 1.3rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  color: var(--ink);
  position: relative;
  z-index: 2;
}
.pk-result-score {
  font-size: 2.2rem;
  font-weight: bold;
  margin: 0.3rem 0;
  position: relative;
  z-index: 2;
}
.pk-result-label {
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  position: relative;
  z-index: 2;
}
.pk-result-vs {
  font-size: 1.5rem;
  color: var(--ink-dim);
  align-self: center;
  font-weight: bold;
  letter-spacing: 0.1em;
}

/* 撒花动画（在分栏容器内） */
.confetti-piece {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 2px;
  animation: confettiFall 3s ease-out forwards;
  opacity: 0;
}
@keyframes confettiFall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  20% { opacity: 1; }
  100% { transform: translateY(250px) rotate(720deg); opacity: 0; }
}

/* 乌云+再接再厉动画（在分栏容器内） */
.cloud-layer {
  position: absolute; top: 0; left: 0; right: 0;
  height: 100%;
  background: radial-gradient(ellipse at 50% 20%, rgba(60,60,60,0.5) 0%, rgba(40,40,40,0.3) 30%, transparent 70%);
  animation: cloudDescend 2s ease-out forwards;
  opacity: 0;
}
@keyframes cloudDescend {
  0% { opacity: 0; transform: translateY(-30px); }
  30% { opacity: 1; }
  100% { opacity: 0.5; transform: translateY(0); }
}
.cloud-text {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.5rem; font-weight: bold;
  color: #e8dcc0;
  letter-spacing: 0.2em;
  animation: cloudTextAppear 2.5s ease-out forwards;
  opacity: 0;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
  z-index: 3;
}
@keyframes cloudTextAppear {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  30% { opacity: 0; }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  100% { opacity: 0.8; transform: translate(-50%, -50%) scale(1); }
}

/* ==================== 错题本 ==================== */
.wrong-book-content { font-size: 1rem; line-height: 1.7; }

/* ==================== 卡牌库 ==================== */
.card-lib-content { font-size: 1rem; line-height: 1.7; }
.card-lib-item {
  display: flex; align-items: flex-start; gap: 0.8rem;
  padding: 0.8rem;
  margin-bottom: 0.6rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.7);
}
.card-lib-icon {
  font-size: 2rem; min-width: 2.5rem; text-align: center;
  line-height: 1;
}
.card-lib-info { flex: 1; }
.card-lib-name {
  font-size: 1.1rem; font-weight: bold; letter-spacing: 0.1em;
  color: var(--ink);
}
.card-lib-count {
  font-size: 0.85rem; color: var(--red); font-weight: bold;
  margin-left: 0.5rem;
}
.card-lib-desc {
  font-size: 0.95rem; color: var(--ink-dim); margin-top: 0.2rem;
}
.card-lib-cost {
  font-size: 0.85rem; color: var(--gold); margin-top: 0.2rem;
}
.card-lib-empty {
  text-align: center; color: var(--ink-dim);
  font-size: 1.1rem; padding: 2rem;
}
.wrong-item {
  padding: 0.8rem;
  margin-bottom: 0.8rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 6px;
  background: rgba(255,255,255,0.7);
}
.wrong-item-excerpt {
  font-size: 0.95rem;
  color: var(--ink-dim);
  margin-bottom: 0.3rem;
  font-style: italic;
}
.wrong-item-q {
  font-weight: bold;
  margin-bottom: 0.3rem;
  font-size: 1.05rem;
}
.wrong-item-ans {
  display: flex; gap: 1rem;
  margin-bottom: 0.3rem;
  font-size: 0.95rem;
}
.wrong-item-your {
  color: var(--red);
}
.wrong-item-correct {
  color: #4a6741;
  font-weight: bold;
}
.wrong-item-exp {
  color: var(--gold);
  font-size: 0.95rem;
  padding-top: 0.3rem;
  border-top: 1px dashed var(--border-ink);
}
.wrong-empty {
  text-align: center;
  color: var(--ink-dim);
  font-size: 1.1rem;
  padding: 2rem;
}

/* ==================== 知识回顾 ==================== */
.review-content { font-size: 1rem; line-height: 1.7; }
.review-item { padding: 0.5rem 0; border-bottom: 1px solid var(--border-ink); }
.review-q { font-weight: bold; margin-bottom: 0.2rem; font-size: 1.05rem; }
.review-a { color: var(--ink-dim); }
.review-exp { color: var(--gold); font-size: 1rem; margin-top: 0.2rem; }

/* ==================== 胜利/失败 ==================== */
.victory-icon, .gameover-icon { font-size: 4rem; text-align: center; margin: 0.8rem 0; }

/* ==================== 游戏说明 ==================== */
.howto-section { margin-bottom: 1rem; }
.howto-section h3 { font-size: 1.2rem; margin-bottom: 0.4rem; letter-spacing: 0.1em; }
.howto-section ul { padding-left: 1.5rem; }
.howto-section li { margin-bottom: 0.3rem; line-height: 1.6; font-size: 1rem; }

/* ==================== 教师工具弹窗 ==================== */
.modal {
  position: fixed; top:0; left:0; width:100%; height:100%;
  background: rgba(26,26,26,0.55);
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  animation: modalFadeIn 0.3s ease-out;
}
.modal.hidden { display: none; }
@keyframes modalFadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
.modal-content {
  max-width: 550px; width: 90%;
  background: var(--card-bg-solid);
  animation: modalSlideUp 0.4s ease-out;
}
@keyframes modalSlideUp {
  0% { opacity: 0; transform: translateY(30px) scale(0.95); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
/* 教师弹窗标题美化 */
.teacher-scroll .panel-title {
  background: linear-gradient(135deg, rgba(26,26,26,0.08), rgba(26,26,26,0.03));
  padding: 1rem 0.5rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}
/* 教师弹窗分区卡片化 */
.teacher-section {
  margin-bottom: 1.2rem;
  padding: 1rem;
  border: 1.5px solid var(--border-ink);
  border-radius: 8px;
  background: rgba(255,255,255,0.6);
  transition: all 0.3s;
}
.teacher-section:hover {
  background: rgba(255,255,255,0.85);
  box-shadow: 0 2px 12px rgba(26,26,26,0.06);
}
.teacher-section h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.teacher-note {
  font-size: 0.95rem;
  color: var(--ink-dim);
  margin-bottom: 0.6rem;
  line-height: 1.5;
}
.upload-area {
  margin-top: 0.6rem;
  padding: 1rem;
  border: 2px dashed var(--border-ink);
  border-radius: 8px;
  text-align: center;
  background: rgba(255,255,255,0.5);
  transition: all 0.3s;
}
.upload-area:hover {
  border-color: var(--gold);
  background: rgba(139,105,20,0.04);
}
.upload-area input[type="file"] { margin: 0.4rem 0; font-size: 1rem; }
#upload-status { font-size: 0.95rem; color: var(--ink-dim); }

/* 教师弹窗滚动 */
.teacher-scroll { max-height: 85vh; overflow-y: auto; -webkit-overflow-scrolling: touch; }

/* 教师学生名单 */
.teacher-student-list {
  max-height: 180px; overflow-y: auto; margin-bottom: 0.6rem;
  font-size: 0.95rem; border: 1px solid var(--border-ink);
  border-radius: 6px; background: rgba(255,255,255,0.7);
}
.teacher-student-item {
  padding: 0.5rem 0.7rem; border-bottom: 1px solid rgba(26,26,26,0.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.95rem;
  transition: background 0.2s;
}
.teacher-student-item:hover { background: rgba(26,26,26,0.04); }
.teacher-student-item:last-child { border-bottom: none; }
.teacher-student-item .stu-name { font-weight: bold; }
.teacher-student-item .stu-info { color: var(--ink-dim); font-size: 0.85rem; }
.teacher-empty { padding: 1rem; text-align: center; color: var(--ink-dim); font-size: 0.95rem; }

/* ==================== 篇目完成庆祝动画 ==================== */
.celebration-content {
  text-align: center;
  padding: 2rem;
  background: var(--card-bg-solid);
  border: 3px solid var(--gold);
  border-radius: 12px;
  max-width: 500px;
  width: 90%;
  position: relative;
  overflow: hidden;
  animation: celebrationAppear 0.6s ease-out;
}
@keyframes celebrationAppear {
  0% { opacity: 0; transform: scale(0.7); }
  60% { transform: scale(1.05); }
  100% { opacity: 1; transform: scale(1); }
}
.celebration-anim {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.celebration-icon {
  font-size: 5rem;
  margin: 1rem 0;
  position: relative; z-index: 2;
  animation: celebrationIconBounce 1.5s ease-in-out infinite;
}
@keyframes celebrationIconBounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.1); }
}
.celebration-title {
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  color: var(--gold);
  position: relative; z-index: 2;
  animation: celebrationTitle 2s ease-out;
}
@keyframes celebrationTitle {
  0% { opacity: 0; transform: translateY(20px); }
  30% { opacity: 0; }
  50% { opacity: 1; transform: translateY(0); }
  100% { opacity: 1; }
}
.celebration-subtitle {
  font-size: 1.3rem;
  color: var(--ink-light);
  margin: 0.5rem 0;
  letter-spacing: 0.15em;
  position: relative; z-index: 2;
}
#celebration-levels-done {
  margin: 0.8rem 0;
  display: flex; gap: 0.6rem; justify-content: center;
  position: relative; z-index: 2;
}
.celebration-level-badge {
  padding: 0.4rem 0.8rem;
  border: 2px solid #4a6741;
  border-radius: 8px;
  background: rgba(74,103,65,0.15);
  font-size: 0.95rem;
  color: #4a6741;
  font-weight: bold;
  letter-spacing: 0.05em;
}

/* 烟花粒子 */
.firework-particle {
  position: absolute;
  border-radius: 50%;
  animation: fireworkBurst 2.5s ease-out forwards;
  opacity: 0;
  z-index: 5;
}
@keyframes fireworkBurst {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  15% { opacity: 1; transform: translate(var(--dx), var(--dy)) scale(1.2); }
  50% { opacity: 0.8; }
  100% { opacity: 0; transform: translate(var(--dx2), var(--dy2)) scale(0.3); }
}

/* 金色闪光 */
.sparkle-particle {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: sparkleFloat 3s ease-out forwards;
  opacity: 0;
  z-index: 4;
}
@keyframes sparkleFloat {
  0% { opacity: 0; transform: translateY(0) scale(0); }
  10% { opacity: 1; transform: translateY(-20px) scale(1); }
  60% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(var(--sparkle-y)) scale(0.2); }
}

/* ==================== 响应式适配 ==================== */

/* 手机端 (≤480px) */
@media (max-width: 480px) {
  :root { --base-size: 16px; }
  .title-main { font-size: 3rem; }
  .title-sub { font-size: 1rem; }
  #author-info { font-size: 0.85rem; }
  .btn { min-width: 160px; padding: 0.6rem 1.5rem; }
  .panel { padding: 1rem; }
  #battle-options { grid-template-columns: 1fr; }
  .matching-container { flex-direction: column; }
  .matching-col { max-width: 100%; }
  .pk-result-columns { flex-direction: column; gap: 0.6rem; }
  .pk-result-side { min-height: 140px; }
  .pk-result-vs { font-size: 1.2rem; }
  #pk-container { flex-direction: column; height: 80vh; }
  #pk-divider { width: 100%; height: 1px; }
  .pk-opt-btn { font-size: 0.85rem; }
  .boss-name { font-size: 1.4rem; }
  .pk-register { flex-direction: column; }
  .map-card-title { font-size: 1.2rem; }
  .map-card-num { font-size: 1.1rem; }
  #map-realm-title { font-size: 1.1rem; }
}

/* 平板端 (481-768px) */
@media (min-width: 481px) and (max-width: 768px) {
  :root { --base-size: 17px; }
  .title-main { font-size: 3.5rem; }
}

/* 电脑端 (≥769px) */
@media (min-width: 769px) {
  :root { --base-size: 18px; }
  .title-main { font-size: 5rem; }
  .panel { padding: 2rem; max-width: 750px; }
}

/* 大屏电脑端 (≥1024px) */
@media (min-width: 1024px) {
  :root { --base-size: 19px; }
  .title-main { font-size: 5.5rem; }
  #pk-container { height: 60vh; }
}

/* 希沃一体机适配（大屏触摸 ≥1920px） */
@media (min-width: 1920px) and (min-height: 1080px) {
  :root { --base-size: 22px; }
  .title-main { font-size: 7rem; }
  .title-sub { font-size: 1.8rem; }
  .btn { padding: 1rem 2.5rem; font-size: 1.2rem; }
  .panel { max-width: 900px; padding: 2.5rem; }
  .option-btn { padding: 1rem; font-size: 1.1rem; }
  .tool-btn { width: 56px; height: 56px; font-size: 24px; }
  #battle-options { gap: 0.8rem; }
  .assist-card-btn { padding: 0.7rem 1rem; font-size: 1.1rem; }
  .pk-opt-btn { padding: 0.7rem; font-size: 1.1rem; }
  .boss-name { font-size: 2.2rem; }
  .fulltext-content { font-size: 1.2rem; }
  .map-card { padding: 1.5rem 1.8rem; }
  .map-card-title { font-size: 2rem; }
  .map-card-num { font-size: 1.8rem; }
  #map-container { max-width: 700px; }
}

@media print { .screen, .modal { display: none !important; } }