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

:root {
  --color-bg-dark: #1a1520;
  --color-bg-darker: #0f0c14;
  --color-green: #6ba88a;
  --color-green-light: #8fc8aa;
  --color-green-dark: #4a7860;
  --color-pink: #e8a0b4;
  --color-pink-light: #f4c4d4;
  --color-pink-dark: #c47090;
  --color-gold: #d4a86a;
  --color-blue: #7aa8d4;
  --color-text: #e8e0e8;
  --color-text-dim: #9890a0;
  --color-panel: rgba(26, 21, 32, 0.9);
  --color-panel-light: rgba(40, 32, 48, 0.85);
  --color-border: rgba(107, 168, 138, 0.3);
  --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow-green: 0 0 20px rgba(107, 168, 138, 0.3);
  --shadow-glow-pink: 0 0 20px rgba(232, 160, 180, 0.3);
  --font-title: "Georgia", "Songti SC", "STSong", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg-darker);
  font-family: var(--font-body);
  color: var(--color-text);
  user-select: none;
  -webkit-user-select: none;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--color-bg-darker);
}

.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  z-index: 1;
}

.screen.active {
  display: flex;
  z-index: 10;
}

#title-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #0a0815 0%, #1a1830 30%, #2a2848 60%, #3a3858 100%);
  overflow: hidden;
}

/* === 海报式角色选择页面（整图+发光框版） === */

#character-select-screen {
  display: none;
  position: relative;
  background: #0a0815;
  overflow: hidden;
}

#character-select-screen.active {
  display: block;
}

/* 整图海报，contain 保持比例不变形 */
.char-select-poster {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: contain;
  background-position: center center;
  background-repeat: no-repeat;
  z-index: 0;
  animation: posterFadeIn 1.8s ease-out;
  filter: brightness(0.92) saturate(1.05);
  transition: filter 0.5s ease;
}

@keyframes posterFadeIn {
  from { opacity: 0; transform: scale(1.04); }
  to { opacity: 1; transform: scale(1); }
}

.char-select-vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 8, 21, 0.5) 0%, transparent 18%, transparent 50%, rgba(10, 8, 21, 0.85) 100%);
}

.char-select-header {
  position: absolute;
  top: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  text-align: center;
  width: 90%;
  max-width: 700px;
  animation: headerSlideIn 1.5s ease-out 0.4s backwards;
}

@keyframes headerSlideIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.char-select-title {
  font-family: var(--font-title);
  font-size: 2.6rem;
  color: var(--color-text);
  text-shadow: 0 0 30px rgba(0, 0, 0, 0.9), 0 2px 10px rgba(0, 0, 0, 0.7);
  letter-spacing: 0.2em;
  margin-bottom: 0.6rem;
}

.char-select-subtitle {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.12em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

.char-select-hotspots {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  z-index: 3;
  display: flex;
  animation: hotspotsFadeIn 1s ease-out 0.8s backwards;
}

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

.char-select-card {
  flex: 1;
  min-width: 0;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 5rem;
  padding-left: 0.3rem;
  padding-right: 0.3rem;
}

/* 暗化遮罩层：默认轻微暗化，hover时移除 */
.char-card-dim {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: rgba(10, 8, 21, 0.35);
  transition: background 0.35s ease;
  pointer-events: none;
}

/* 发光描边层：仅在选中时显示 */
.char-card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease, box-shadow 0.35s ease;
  box-shadow:
    inset 0 0 0 5px rgba(212, 168, 106, 0.9),
    inset 0 0 60px rgba(212, 168, 106, 0.25),
    0 0 40px rgba(212, 168, 106, 0.5),
    0 0 80px rgba(212, 168, 106, 0.2);
}

.char-select-card[data-character="a"] .char-card-glow {
  box-shadow:
    inset 0 0 0 5px rgba(232, 160, 180, 0.9),
    inset 0 0 60px rgba(232, 160, 180, 0.25),
    0 0 40px rgba(232, 160, 180, 0.5),
    0 0 80px rgba(232, 160, 180, 0.2);
}

.char-select-card[data-character="heroine"] .char-card-glow {
  box-shadow:
    inset 0 0 0 5px rgba(212, 168, 106, 0.9),
    inset 0 0 60px rgba(212, 168, 106, 0.25),
    0 0 40px rgba(212, 168, 106, 0.5),
    0 0 80px rgba(212, 168, 106, 0.2);
}

.char-select-card[data-character="pangzi"] .char-card-glow {
  box-shadow:
    inset 0 0 0 5px rgba(224, 160, 96, 0.9),
    inset 0 0 60px rgba(224, 160, 96, 0.25),
    0 0 40px rgba(224, 160, 96, 0.5),
    0 0 80px rgba(224, 160, 96, 0.2);
}

.char-select-card[data-character="gu"] .char-card-glow {
  box-shadow:
    inset  0 0 0 5px rgba(192, 200, 216, 0.9),
    inset 0 0 60px rgba(192, 200, 216, 0.25),
    0 0 40px rgba(192, 200, 216, 0.5),
    0 0 80px rgba(192, 200, 216, 0.2);
}

.char-select-card[data-character="luyichen"] .char-card-glow {
  box-shadow:
    inset 0 0 0 5px rgba(141, 184, 232, 0.9),
    inset 0 0 60px rgba(141, 184, 232, 0.25),
    0 0 40px rgba(141, 184, 232, 0.5),
    0 0 80px rgba(141, 184, 232, 0.2);
}

.char-select-card[data-character="sunianwei"] .char-card-glow {
  box-shadow:
    inset 0 0 0 5px rgba(216, 184, 216, 0.9),
    inset 0 0 60px rgba(216, 184, 216, 0.25),
    0 0 40px rgba(216, 184, 216, 0.5),
    0 0 80px rgba(216, 184, 216, 0.2);
}

@keyframes glowBreathe {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.25); }
}

/* 不做任何hover效果——hover时只有cursor:pointer，无视觉变化 */
/* 只有选中（点击）后才显示描边高光和介绍卡 */

/* 有选中卡片时：选中卡片不暗化，其他全部暗化 */
.char-select-hotspots:has(.char-select-card.selected) .char-select-card.selected .char-card-dim {
  background: transparent;
}

.char-select-hotspots:has(.char-select-card.selected) .char-select-card:not(.selected) .char-card-dim {
  background: rgba(10, 8, 21, 0.75);
}

/* 信息卡片：仅在选中时显示 */
.char-hotspot-info {
  position: relative;
  z-index: 3;
  text-align: center;
  background: rgba(15, 12, 20, 0.82);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(107, 168, 138, 0.25);
  border-radius: 10px;
  padding: 0.8rem 0.9rem;
  min-width: 130px;
  max-width: 200px;
  transition: all 0.4s ease;
  transform: translateY(12px);
  opacity: 0;
  pointer-events: none;
}

/* 选中状态才显示信息卡片 */
.char-select-card.selected .char-hotspot-info {
  opacity: 1;
  transform: translateY(0);
  border-color: var(--color-green);
  box-shadow: 0 0 25px rgba(107, 168, 138, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="a"].selected .char-hotspot-info {
  border-color: var(--color-pink);
  box-shadow: 0 0 25px rgba(232, 160, 180, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="heroine"].selected .char-hotspot-info {
  border-color: var(--color-gold);
  box-shadow: 0 0 25px rgba(212, 168, 106, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="pangzi"].selected .char-hotspot-info {
  border-color: #e0a060;
  box-shadow: 0 0 25px rgba(224, 160, 96, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="gu"].selected .char-hotspot-info {
  border-color: #c0c8d8;
  box-shadow: 0 0 25px rgba(192, 200, 216, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="luyichen"].selected .char-hotspot-info {
  border-color: #8db8e8;
  box-shadow: 0 0 25px rgba(141, 184, 232, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

.char-select-card[data-character="sunianwei"].selected .char-hotspot-info {
  border-color: #d8b8d8;
  box-shadow: 0 0 25px rgba(216, 184, 216, 0.3), 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* 选中时的确认提示 */
.char-select-card.selected .char-hotspot-info::after {
  content: "再次点击进入故事";
  display: block;
  margin-top: 0.5rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.1em;
  animation: hintBlink 1.5s ease-in-out infinite;
}

@keyframes hintBlink {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.char-hotspot-name {
  font-size: 1.35rem;
  font-weight: bold;
  color: var(--color-text);
  letter-spacing: 0.12em;
  margin-bottom: 0.35rem;
}

.char-hotspot-desc {
  font-size: 0.76rem;
  color: var(--color-text-dim);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.char-hotspot-tag {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.18rem 0.7rem;
  border-radius: 10px;
  background: rgba(107, 168, 138, 0.2);
  color: var(--color-green-light);
  border: 1px solid rgba(107, 168, 138, 0.4);
  letter-spacing: 0.12em;
}

.char-select-card[data-character="a"] .char-hotspot-tag {
  background: rgba(232, 160, 180, 0.2);
  color: var(--color-pink-light);
  border-color: rgba(232, 160, 180, 0.4);
}

.char-select-card[data-character="heroine"] .char-hotspot-tag {
  background: rgba(212, 168, 106, 0.2);
  color: var(--color-gold);
  border-color: rgba(212, 168, 106, 0.4);
}

.char-select-card[data-character="pangzi"] .char-hotspot-tag {
  background: rgba(224, 160, 96, 0.2);
  color: #f0c080;
  border-color: rgba(224, 160, 96, 0.4);
}

.char-select-card[data-character="gu"] .char-hotspot-tag {
  background: rgba(192, 200, 216, 0.2);
  color: #c0c8d8;
  border-color: rgba(192, 200, 216, 0.4);
}

.char-select-card[data-character="luyichen"] .char-hotspot-tag {
  background: rgba(141, 184, 232, 0.2);
  color: #8db8e8;
  border-color: rgba(141, 184, 232, 0.4);
}

.char-select-card[data-character="sunianwei"] .char-hotspot-tag {
  background: rgba(216, 184, 216, 0.2);
  color: #d8b8d8;
  border-color: rgba(216, 184, 216, 0.4);
}

/* 选中状态 */
.char-select-card.selected .char-card-glow {
  opacity: 1;
  animation: selectFlash 0.5s ease-out, glowBreathe 2.5s ease-in-out infinite 0.5s;
}

.char-select-card.selected .char-card-dim {
  background: transparent;
}

.char-select-card.selected .char-hotspot-info {
  opacity: 1;
  transform: translateY(0);
}

@keyframes selectFlash {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.char-select-back {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(15, 12, 20, 0.7);
  border: 1px solid rgba(107, 168, 138, 0.3);
  padding: 0.5rem 2rem;
  cursor: pointer;
  border-radius: 4px;
  letter-spacing: 0.15em;
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.char-select-back:hover {
  color: var(--color-text);
  border-color: var(--color-green);
  background: rgba(107, 168, 138, 0.15);
  box-shadow: 0 0 15px rgba(107, 168, 138, 0.2);
}

@media (max-width: 768px) {
  .char-select-title { font-size: 1.8rem; }
  .char-select-subtitle { font-size: 0.75rem; }
  .char-hotspot-info { min-width: 60px; max-width: 100px; padding: 0.5rem 0.5rem; }
  .char-hotspot-name { font-size: 0.85rem; }
  .char-hotspot-desc { font-size: 0.55rem; }
  .char-hotspot-tag { font-size: 0.5rem; padding: 0.1rem 0.4rem; }
  .char-select-card { padding-bottom: 3rem; padding-left: 0.1rem; padding-right: 0.1rem; }
  .char-select-card.selected .char-hotspot-info::after { font-size: 0.5rem; margin-top: 0.3rem; padding-top: 0.3rem; }
}

#title-screen::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 35%;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 8, 21, 0.8) 100%);
  z-index: 1;
}

.title-skyline {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  background:
    linear-gradient(180deg, transparent 0%, rgba(20, 18, 35, 0.6) 100%),
    repeating-linear-gradient(90deg,
      transparent 0px, transparent 30px,
      rgba(40, 50, 70, 0.3) 30px, rgba(40, 50, 70, 0.3) 32px,
      transparent 32px, transparent 60px,
      rgba(50, 60, 80, 0.2) 60px, rgba(50, 60, 80, 0.2) 65px,
      transparent 65px, transparent 100px,
      rgba(35, 45, 65, 0.25) 100px, rgba(35, 45, 65, 0.25) 104px
    );
  z-index: 0;
}

.title-skyline::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  background:
    linear-gradient(180deg, transparent 60%, rgba(107, 168, 138, 0.05) 100%);
  clip-path: polygon(
    0 100%, 0 70%, 5% 70%, 5% 55%, 10% 55%, 10% 65%, 15% 65%,
    15% 45%, 20% 45%, 20% 50%, 25% 50%, 25% 35%, 30% 35%, 30% 40%,
    35% 40%, 35% 25%, 40% 25%, 40% 30%, 45% 30%, 45% 20%, 50% 20%,
    50% 35%, 55% 35%, 55% 15%, 60% 15%, 60% 25%, 65% 25%, 65% 10%,
    70% 10%, 70% 30%, 75% 30%, 75% 20%, 80% 20%, 80% 40%, 85% 40%,
    85% 30%, 90% 30%, 90% 50%, 95% 50%, 95% 45%, 100% 45%, 100% 100%
  );
}

.title-stars {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60%;
  z-index: 0;
}

.title-star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: white;
  border-radius: 50%;
  opacity: 0;
  animation: twinkle 3s infinite ease-in-out;
}

@keyframes twinkle {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.8; }
}

.title-content {
  position: relative;
  z-index: 2;
  text-align: center;
  animation: titleFadeIn 1.5s ease-out;
}

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

.title-main {
  font-family: var(--font-title);
  font-size: 4.5rem;
  font-weight: bold;
  color: var(--color-text);
  text-shadow:
    0 0 30px rgba(107, 168, 138, 0.4),
    0 0 60px rgba(232, 160, 180, 0.2),
    2px 2px 4px rgba(0, 0, 0, 0.8);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.title-sub {
  font-size: 1rem;
  color: var(--color-text-dim);
  letter-spacing: 0.4em;
  margin-bottom: 0.3rem;
  font-style: italic;
}

.title-divider {
  width: 200px;
  height: 1px;
  margin: 2rem auto;
  background: linear-gradient(90deg, transparent, var(--color-green), var(--color-pink), transparent);
}

.title-author {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 3rem;
  letter-spacing: 0.1em;
}

.title-menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.title-btn {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--color-text);
  background: rgba(26, 21, 32, 0.6);
  border: 1px solid var(--color-border);
  padding: 0.7rem 3rem;
  min-width: 220px;
  cursor: pointer;
  border-radius: 4px;
  letter-spacing: 0.15em;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
}

.title-btn:hover {
  background: rgba(107, 168, 138, 0.2);
  border-color: var(--color-green);
  color: var(--color-green-light);
  box-shadow: var(--shadow-glow-green);
  transform: translateX(4px);
}

#game-screen {
  position: relative;
  background: #000;
}

#vn-game-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.vn-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 1;
  transition: opacity 0.6s ease;
}

.vn-background::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  pointer-events: none;
  background-image:
    radial-gradient(ellipse at 20% 80%, rgba(255,255,255,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.vn-background[data-scene="classroom"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, transparent 0%, transparent 8%, rgba(120,100,60,0.12) 8%, rgba(120,100,60,0.12) 9%, transparent 9%, transparent 91%, rgba(120,100,60,0.12) 91%, rgba(120,100,60,0.12) 92%, transparent 92%),
    linear-gradient(180deg, transparent 0%, transparent 15%, rgba(60,50,30,0.08) 15%, rgba(60,50,30,0.08) 18%, transparent 18%);
}

.vn-background[data-scene="sunset"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 70% 30%, rgba(255,200,100,0.2) 0%, transparent 40%);
}

.vn-background[data-scene="rain"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    repeating-linear-gradient(105deg,
      transparent 0px, transparent 8px,
      rgba(150,170,200,0.06) 8px, rgba(150,170,200,0.06) 10px),
    linear-gradient(180deg, rgba(80,90,110,0.15) 0%, transparent 50%);
}

.vn-background[data-scene="night"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 30% 20%, rgba(200,210,255,0.08) 0%, transparent 30%);
}

.vn-background[data-scene="rooftop"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.12) 0%, transparent 60%);
}

.vn-background[data-scene="office"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, transparent 70%, rgba(60,40,20,0.1) 70%, rgba(60,40,20,0.1) 100%);
}

.vn-background[data-scene="home"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(200,150,80,0.06) 0%, transparent 50%);
}

.vn-background[data-scene="street"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, transparent 60%, rgba(100,80,60,0.1) 60%, rgba(100,80,60,0.1) 65%, transparent 65%),
    radial-gradient(ellipse at 70% 25%, rgba(255,200,120,0.08) 0%, transparent 40%);
}

.vn-background[data-scene="school_gate"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, transparent 45%, rgba(80,80,90,0.1) 45%, rgba(80,80,90,0.1) 55%, transparent 55%),
    linear-gradient(180deg, transparent 0%, transparent 75%, rgba(60,60,70,0.12) 75%, rgba(60,60,70,0.12) 80%, transparent 80%);
}

.vn-background[data-scene="hallway"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, transparent 15%, rgba(200,200,210,0.08) 15%, rgba(200,200,210,0.08) 17%, transparent 17%, transparent 83%, rgba(200,200,210,0.08) 83%, rgba(200,200,210,0.08) 85%, transparent 85%),
    linear-gradient(180deg, transparent 0%, transparent 70%, rgba(180,180,190,0.06) 70%, rgba(180,180,190,0.06) 75%, transparent 75%);
}

.vn-background[data-scene="hallway_evening"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, transparent 15%, rgba(120,110,130,0.1) 15%, rgba(120,110,130,0.1) 17%, transparent 17%, transparent 83%, rgba(120,110,130,0.1) 83%, rgba(120,110,130,0.1) 85%, transparent 85%),
    radial-gradient(circle at 30% 20%, rgba(255,200,150,0.06) 0%, transparent 40%);
}

.vn-background[data-scene="classroom_evening"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, transparent 8%, rgba(100,80,60,0.1) 8%, rgba(100,80,60,0.1) 9%, transparent 9%, transparent 91%, rgba(100,80,60,0.1) 91%, rgba(100,80,60,0.1) 92%, transparent 92%),
    radial-gradient(circle at 75% 30%, rgba(255,180,100,0.1) 0%, transparent 45%);
}

.vn-background[data-scene="library"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, transparent 10%, rgba(100,80,50,0.1) 10%, rgba(100,80,50,0.1) 12%, transparent 12%, transparent 88%, rgba(100,80,50,0.1) 88%, rgba(100,80,50,0.1) 90%, transparent 90%),
    linear-gradient(180deg, transparent 0%, transparent 25%, rgba(80,60,30,0.08) 25%, rgba(80,60,30,0.08) 27%, transparent 27%, transparent 50%, rgba(80,60,30,0.08) 50%, rgba(80,60,30,0.08) 52%, transparent 52%);
}

.vn-background[data-scene="playground"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, transparent 55%, rgba(255,255,255,0.06) 55%, rgba(255,255,255,0.06) 57%, transparent 57%),
    radial-gradient(ellipse at 50% 15%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

.vn-background[data-scene="bookstore"]::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, transparent 20%, rgba(100,70,40,0.08) 20%, rgba(100,70,40,0.08) 22%, transparent 22%, transparent 45%, rgba(100,70,40,0.08) 45%, rgba(100,70,40,0.08) 47%, transparent 47%, transparent 70%, rgba(100,70,40,0.08) 70%, rgba(100,70,40,0.08) 72%, transparent 72%),
    radial-gradient(ellipse at 50% 30%, rgba(255,220,150,0.1) 0%, transparent 50%);
}

.vn-characters {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.vn-character {
  position: absolute;
  bottom: 0;
  width: 45%;
  height: 100%;
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease, filter 0.4s ease;
  pointer-events: none;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
  z-index: 5;
}

.vn-character.visible {
  opacity: 1 !important;
}

.vn-character-left {
  left: -3%;
  transform: translateX(-15px);
}

.vn-character-left.visible {
  transform: translateX(0);
}

.vn-character-center {
  left: 25%;
  transform: scale(0.96);
}

.vn-character-center.visible {
  transform: scale(1);
}

.vn-character-right {
  right: -3%;
  transform: translateX(15px);
}

.vn-character-right.visible {
  transform: translateX(0);
}

.vn-character[data-expression="normal"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="happy"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="sad"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="angry"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="surprised"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="shy"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="thinking"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="serious"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

/* === 新增表情 === */
.vn-character[data-expression="confused"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="disappointed"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="excited"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="scared"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="gentle"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="nervous"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="relieved"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="crying"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="proud"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-expression="lonely"] {
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

/* === 身高等比例缩放（引擎动态设置height） === */
.vn-character {
  transform-origin: bottom center;
}

.vn-character[data-dim="true"] {
  opacity: 1 !important;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.35));
}

.vn-character[data-dim="true"][data-expression] {
  opacity: 1 !important;
}

/* === Action Animations === */

.vn-character-left.visible[data-expression="happy"],
.vn-character-right.visible[data-expression="happy"] {
  animation: charBounceX 2.5s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="happy"] {
  animation: charBounceCenter 2.5s ease-in-out infinite;
}

@keyframes charBounceX {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(0) translateY(-6px); }
}

@keyframes charBounceCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1) translateY(-6px); }
}

.vn-character-left.visible[data-expression="sad"],
.vn-character-right.visible[data-expression="sad"] {
  animation: charDroopX 4s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="sad"] {
  animation: charDroopCenter 4s ease-in-out infinite;
}

@keyframes charDroopX {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(0) translateY(3px); }
}

@keyframes charDroopCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1) translateY(3px); }
}

.vn-character-left.visible[data-expression="angry"],
.vn-character-right.visible[data-expression="angry"] {
  animation: charShakeX 0.4s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="angry"] {
  animation: charShakeCenter 0.4s ease-in-out infinite;
}

@keyframes charShakeX {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

@keyframes charShakeCenter {
  0%, 100% { transform: scale(1) translateX(0); }
  25% { transform: scale(1) translateX(-3px); }
  75% { transform: scale(1) translateX(3px); }
}

.vn-character-left.visible[data-expression="surprised"],
.vn-character-right.visible[data-expression="surprised"] {
  animation: charStartleX 0.6s ease-out;
}

.vn-character-center.visible[data-expression="surprised"] {
  animation: charStartleCenter 0.6s ease-out;
}

@keyframes charStartleX {
  0% { transform: translateX(0) scale(1); }
  30% { transform: translateX(0) scale(1.05); }
  100% { transform: translateX(0) scale(1); }
}

@keyframes charStartleCenter {
  0% { transform: scale(1); }
  30% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

.vn-character-left.visible[data-expression="shy"],
.vn-character-right.visible[data-expression="shy"] {
  animation: charSwayX 3s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="shy"] {
  animation: charSwayCenter 3s ease-in-out infinite;
}

@keyframes charSwayX {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(0) rotate(-1deg); }
}

@keyframes charSwayCenter {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1) rotate(-1deg); }
}

.vn-character-left.visible[data-expression="thinking"],
.vn-character-right.visible[data-expression="thinking"] {
  animation: charTiltX 5s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="thinking"] {
  animation: charTiltCenter 5s ease-in-out infinite;
}

@keyframes charTiltX {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(0) rotate(2deg); }
}

@keyframes charTiltCenter {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1) rotate(2deg); }
}

.vn-character-left.visible[data-expression="serious"],
.vn-character-right.visible[data-expression="serious"] {
  animation: charStillX 6s ease-in-out infinite;
}

.vn-character-center.visible[data-expression="serious"] {
  animation: charStillCenter 6s ease-in-out infinite;
}

@keyframes charStillX {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(0) translateY(1px); }
}

@keyframes charStillCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1) translateY(1px); }
}

/* === 新增表情动画 === */
.vn-character-left.visible[data-expression="confused"],
.vn-character-right.visible[data-expression="confused"] {
  animation: charTiltX 4s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="confused"] {
  animation: charTiltCenter 4s ease-in-out infinite;
}

.vn-character-left.visible[data-expression="disappointed"],
.vn-character-right.visible[data-expression="disappointed"] {
  animation: charDroopX 5s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="disappointed"] {
  animation: charDroopCenter 5s ease-in-out infinite;
}

.vn-character-left.visible[data-expression="excited"],
.vn-character-right.visible[data-expression="excited"] {
  animation: charBounceX 1.5s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="excited"] {
  animation: charBounceCenter 1.5s ease-in-out infinite;
}

.vn-character-left.visible[data-expression="scared"],
.vn-character-right.visible[data-expression="scared"] {
  animation: charShakeX 0.3s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="scared"] {
  animation: charShakeCenter 0.3s ease-in-out infinite;
}

.vn-character-left.visible[data-expression="gentle"],
.vn-character-right.visible[data-expression="gentle"] {
  animation: charSwayX 4s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="gentle"] {
  animation: charSwayCenter 4s ease-in-out infinite;
}

.vn-character-left.visible[data-expression="nervous"],
.vn-character-right.visible[data-expression="nervous"] {
  animation: charFidgetX 1.8s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="nervous"] {
  animation: charFidgetCenter 1.8s ease-in-out infinite;
}
@keyframes charFidgetX {
  0%, 100% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(-2px) translateY(-1px); }
  50% { transform: translateX(2px) translateY(0); }
  75% { transform: translateX(-1px) translateY(-2px); }
}
@keyframes charFidgetCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  25% { transform: scale(1) translateX(-2px) translateY(-1px); }
  50% { transform: scale(1) translateX(2px) translateY(0); }
  75% { transform: scale(1) translateX(-1px) translateY(-2px); }
}

.vn-character-left.visible[data-expression="relieved"],
.vn-character-right.visible[data-expression="relieved"] {
  animation: charBreatheX 3s ease-out;
}
.vn-character-center.visible[data-expression="relieved"] {
  animation: charBreatheCenter 3s ease-out;
}
@keyframes charBreatheX {
  0% { transform: translateX(0) translateY(-3px); }
  50% { transform: translateX(0) translateY(2px); }
  100% { transform: translateX(0) translateY(0); }
}
@keyframes charBreatheCenter {
  0% { transform: scale(1) translateY(-3px); }
  50% { transform: scale(1) translateY(2px); }
  100% { transform: scale(1) translateY(0); }
}

.vn-character-left.visible[data-expression="crying"],
.vn-character-right.visible[data-expression="crying"] {
  animation: charTrembleX 2s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="crying"] {
  animation: charTrembleCenter 2s ease-in-out infinite;
}
@keyframes charTrembleX {
  0%, 100% { transform: translateX(0) translateY(0); }
  20% { transform: translateX(-1px) translateY(1px); }
  40% { transform: translateX(1px) translateY(2px); }
  60% { transform: translateX(-1px) translateY(1px); }
  80% { transform: translateX(1px) translateY(2px); }
}
@keyframes charTrembleCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  20% { transform: scale(1) translateX(-1px) translateY(1px); }
  40% { transform: scale(1) translateX(1px) translateY(2px); }
  60% { transform: scale(1) translateX(-1px) translateY(1px); }
  80% { transform: scale(1) translateX(1px) translateY(2px); }
}

.vn-character-left.visible[data-expression="proud"],
.vn-character-right.visible[data-expression="proud"] {
  animation: charPuffX 3s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="proud"] {
  animation: charPuffCenter 3s ease-in-out infinite;
}
@keyframes charPuffX {
  0%, 100% { transform: translateX(0) translateY(0) scale(1); }
  50% { transform: translateX(0) translateY(-2px) scale(1.02); }
}
@keyframes charPuffCenter {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1.02) translateY(-2px); }
}

.vn-character-left.visible[data-expression="lonely"],
.vn-character-right.visible[data-expression="lonely"] {
  animation: charDroopX 6s ease-in-out infinite;
}
.vn-character-center.visible[data-expression="lonely"] {
  animation: charDroopCenter 6s ease-in-out infinite;
}

/* === CG 插图系统 === */
.vn-cg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 20;
  opacity: 0;
  pointer-events: none;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  transition: opacity 1.2s ease;
}

.vn-cg-layer.visible {
  opacity: 1;
  pointer-events: auto;
}

.vn-cg-layer::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}

.vn-dialogue-box {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1100px;
  min-height: 160px;
  background: rgba(15, 12, 20, 0.88);
  border: 1px solid rgba(107, 168, 138, 0.25);
  border-radius: 12px;
  padding: 1.5rem 2rem 1rem;
  z-index: 20;
  cursor: pointer;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-soft);
  transition: opacity 0.3s ease;
}

.vn-dialogue-box.hidden {
  opacity: 0;
  pointer-events: none;
}

.vn-dialogue-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-green), transparent);
  border-radius: 2px;
}

.vn-speaker {
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
  min-height: 1.5rem;
}

.vn-speaker.has-name::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 1.1rem;
  background: currentColor;
  margin-right: 0.5rem;
  vertical-align: middle;
  border-radius: 2px;
  opacity: 0.8;
}

.vn-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
  white-space: pre-wrap;
  word-wrap: break-word;
  min-height: 3.6rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.vn-continue-hint {
  position: absolute;
  bottom: 0.8rem;
  right: 1.5rem;
  color: var(--color-green);
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  animation: bounceDown 1s infinite;
}

.vn-continue-hint.show {
  opacity: 0.8;
}

@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

.vn-choice-area {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 25;
  background: rgba(10, 8, 15, 0.5);
  backdrop-filter: blur(2px);
}

.vn-choice-area.active {
  display: flex;
}

.vn-choice-btn {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--color-text);
  background: rgba(26, 21, 32, 0.9);
  border: 1px solid rgba(107, 168, 138, 0.3);
  border-left: 4px solid var(--color-green);
  padding: 1rem 2.5rem;
  min-width: 480px;
  max-width: 600px;
  cursor: pointer;
  border-radius: 8px;
  letter-spacing: 0.03em;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  opacity: 0;
  animation: choiceSlideIn 0.4s ease-out forwards;
  text-align: center;
  line-height: 1.5;
}

@keyframes choiceSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.vn-choice-btn:hover {
  background: rgba(107, 168, 138, 0.25);
  border-color: var(--color-green);
  border-left-color: var(--color-pink);
  color: var(--color-green-light);
  box-shadow: var(--shadow-glow-green);
  transform: translateX(6px) scale(1.02);
}

.vn-choice-btn:nth-child(2) {
  border-left-color: var(--color-pink);
}

.vn-choice-btn:nth-child(2):hover {
  border-left-color: var(--color-green);
}

.vn-transition {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  transition: opacity 0.6s ease;
}

.game-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: flex-end;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  z-index: 30;
  opacity: 0;
  transition: opacity 0.3s ease;
}

#game-screen:hover .game-top-bar {
  opacity: 1;
}

.game-btn {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-dim);
  background: rgba(15, 12, 20, 0.7);
  border: 1px solid rgba(107, 168, 138, 0.2);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  border-radius: 4px;
  letter-spacing: 0.05em;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.game-btn:hover {
  color: var(--color-green-light);
  border-color: var(--color-green);
  background: rgba(107, 168, 138, 0.15);
}

.game-btn.active {
  color: var(--color-pink);
  border-color: var(--color-pink);
  background: rgba(232, 160, 180, 0.15);
}

#save-screen, #load-screen {
  flex-direction: column;
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
  padding: 2rem;
}

.save-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.save-title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  color: var(--color-green-light);
  letter-spacing: 0.1em;
}

.save-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.save-card {
  background: var(--color-panel-light);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all 0.3s ease;
  min-height: 140px;
}

.save-card:hover {
  border-color: var(--color-green);
  box-shadow: var(--shadow-glow-green);
}

.save-card.empty {
  opacity: 0.5;
  border-style: dashed;
}

.save-slot {
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--color-green-light);
}

.save-date {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.save-route {
  font-size: 0.8rem;
  color: var(--color-pink);
  font-weight: bold;
}

.save-preview {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  flex: 1;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.save-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.save-action-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--color-border);
  background: rgba(26, 21, 32, 0.6);
  color: var(--color-text);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  flex: 1;
}

.save-action-btn:hover {
  background: rgba(107, 168, 138, 0.2);
  border-color: var(--color-green);
  color: var(--color-green-light);
}

.save-action-btn.delete-btn:hover {
  background: rgba(204, 102, 102, 0.2);
  border-color: #cc6666;
  color: #e88080;
}

#settings-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
  padding: 2rem;
}

.settings-container {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2.5rem 3rem;
  width: 90%;
  max-width: 520px;
}

.settings-title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  color: var(--color-green-light);
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: 0.1em;
}

.setting-item {
  margin-bottom: 1.8rem;
}

.setting-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.setting-value {
  color: var(--color-green-light);
  font-weight: bold;
  font-size: 0.85rem;
}

.setting-slider {
  width: 100%;
  height: 6px;
  background: rgba(107, 168, 138, 0.2);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.setting-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--color-green);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-glow-green);
  transition: transform 0.2s ease;
}

.setting-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.setting-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--color-green);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-glow-green);
}

.settings-back {
  width: 100%;
  margin-top: 1rem;
  padding: 0.7rem;
  background: rgba(107, 168, 138, 0.15);
  border: 1px solid var(--color-green);
  color: var(--color-green-light);
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}

.settings-back:hover {
  background: rgba(107, 168, 138, 0.3);
}

#about-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
  padding: 2rem;
}

.about-container {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2.5rem 3rem;
  width: 90%;
  max-width: 560px;
  text-align: center;
}

.about-title {
  font-family: var(--font-title);
  font-size: 1.8rem;
  color: var(--color-green-light);
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.about-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.about-section {
  text-align: left;
  margin-bottom: 1.2rem;
  line-height: 1.8;
}

.about-section h3 {
  font-size: 1rem;
  color: var(--color-pink);
  margin-bottom: 0.4rem;
}

.about-section p {
  font-size: 0.9rem;
  color: var(--color-text-dim);
}

.about-back {
  margin-top: 1.5rem;
  padding: 0.6rem 2rem;
  background: rgba(107, 168, 138, 0.15);
  border: 1px solid var(--color-green);
  color: var(--color-green-light);
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}

.about-back:hover {
  background: rgba(107, 168, 138, 0.3);
}

#ending-screen {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #0a0815 0%, #1a1525 50%, #0f0c18 100%);
  text-align: center;
  animation: endingFadeIn 2s ease-out;
}

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

.ending-content {
  max-width: 600px;
  padding: 2rem;
}

#ending-title {
  font-family: var(--font-title);
  font-size: 2.5rem;
  color: var(--color-green-light);
  margin-bottom: 1.5rem;
  letter-spacing: 0.15em;
  text-shadow: var(--shadow-glow-green);
  opacity: 0;
  animation: endingTitleShow 1.5s ease-out 1s forwards;
}

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

#ending-text {
  font-size: 1.1rem;
  color: var(--color-text-dim);
  line-height: 2;
  white-space: pre-wrap;
  margin-bottom: 3rem;
  opacity: 0;
  animation: endingTextShow 1.5s ease-out 2.5s forwards;
}

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

.ending-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  opacity: 0;
  animation: endingButtonsShow 1s ease-out 4s forwards;
}

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

.ending-btn {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: rgba(26, 21, 32, 0.8);
  border: 1px solid var(--color-border);
  padding: 0.7rem 2rem;
  cursor: pointer;
  border-radius: 6px;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}

.ending-btn:hover {
  background: rgba(107, 168, 138, 0.2);
  border-color: var(--color-green);
  color: var(--color-green-light);
}

.history-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  max-width: 700px;
  max-height: 70%;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 1.1rem;
  color: var(--color-green-light);
}

.history-close {
  background: none;
  border: none;
  color: var(--color-text-dim);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  transition: color 0.2s ease;
}

.history-close:hover {
  color: var(--color-pink);
}

.history-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
}

.history-item {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(107, 168, 138, 0.1);
  font-size: 0.9rem;
  line-height: 1.6;
}

.history-speaker {
  font-weight: bold;
  margin-right: 0.5rem;
}

.history-text {
  color: var(--color-text-dim);
}

.confirm-dialog {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 60;
  backdrop-filter: blur(4px);
}

.confirm-content {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  max-width: 400px;
}

.confirm-content p {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  white-space: pre-wrap;
  color: var(--color-text);
}

.confirm-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.confirm-buttons button {
  font-family: var(--font-body);
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: all 0.2s ease;
}

#confirm-yes {
  background: rgba(232, 160, 180, 0.2);
  border: 1px solid var(--color-pink);
  color: var(--color-pink-light);
}

#confirm-yes:hover {
  background: rgba(232, 160, 180, 0.35);
}

#confirm-no {
  background: rgba(107, 168, 138, 0.15);
  border: 1px solid var(--color-green);
  color: var(--color-green-light);
}

#confirm-no:hover {
  background: rgba(107, 168, 138, 0.3);
}

.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: var(--color-panel);
  border: 1px solid var(--color-green);
  color: var(--color-green-light);
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-size: 0.95rem;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-glow-green);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.save-grid::-webkit-scrollbar,
.history-content::-webkit-scrollbar {
  width: 6px;
}

.save-grid::-webkit-scrollbar-track,
.history-content::-webkit-scrollbar-track {
  background: rgba(26, 21, 32, 0.5);
  border-radius: 3px;
}

.save-grid::-webkit-scrollbar-thumb,
.history-content::-webkit-scrollbar-thumb {
  background: var(--color-green-dark);
  border-radius: 3px;
}

.save-grid::-webkit-scrollbar-thumb:hover,
.history-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-green);
}

@media (min-width: 1600px) {
  .vn-dialogue-box {
    max-width: 1200px;
    min-height: 180px;
    padding: 1.8rem 2.5rem 1.2rem;
  }

  .vn-text {
    font-size: 1.15rem;
  }

  .vn-speaker {
    font-size: 1.2rem;
  }

  .vn-choice-btn {
    min-width: 540px;
    font-size: 1.15rem;
  }

  .title-main {
    font-size: 5rem;
  }
}

@media (max-width: 768px) {
  .title-main {
    font-size: 2.8rem;
  }

  .vn-dialogue-box {
    width: 94%;
    min-height: 130px;
    padding: 1rem 1.2rem 0.8rem;
  }

  .vn-text {
    font-size: 0.9rem;
  }

  .vn-choice-btn {
    min-width: 280px;
    font-size: 0.95rem;
    padding: 0.8rem 1.5rem;
  }

  .save-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .game-btn {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
  }
}