/* ========================================
   初音未来 - 赛博微光与毛玻璃 (Cyber-Glass)
   ======================================== */

/* CSS 变量 - 主题系统 */
:root {
  /* 主色调 */
  --miku-green: #39C5BB;
  --miku-green-light: #5DD9D0;
  --miku-green-dark: #2A9D94;

  /* 辅助色 */
  --white: #FFFFFF;
  --gray-100: #F8FAFC;
  --gray-200: #E2E8F0;
  --gray-400: #94A3B8;
  --gray-600: #475569;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --dark: #020617;
  --darker: #010409;

  /* 语义色 */
  --bg-primary: var(--dark);
  --bg-secondary: var(--gray-900);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --text-primary: var(--white);
  --text-secondary: var(--gray-400);
  --accent: var(--miku-green);

  /* 毛玻璃 */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.08);
  --blur: blur(20px);

  /* 字体 */
  --font-display: 'Orbitron', 'SF Pro Display', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 60px rgba(57, 197, 187, 0.25);

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 重置 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* 容器 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   导航栏 - 毛玻璃效果
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s var(--ease-out);
}

.navbar.scrolled {
  background: rgba(2, 6, 23, 0.85);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-icon {
  filter: drop-shadow(0 0 8px rgba(57, 197, 187, 0.5));
}

.nav-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--miku-green), var(--miku-green-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-link {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--miku-green);
  transition: width 0.3s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: var(--miku-green);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s var(--ease-out);
}

/* ========================================
   Hero 区域 - 景深视差
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  will-change: transform;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(57, 197, 187, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 40%),
    linear-gradient(to bottom, transparent 0%, var(--bg-primary) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 24px;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--miku-green);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero-title {
  margin-bottom: 24px;
}

.title-cn {
  display: block;
  font-size: clamp(48px, 15vw, 120px);
  font-weight: 700;
  letter-spacing: 16px;
  background: linear-gradient(135deg, var(--white) 0%, var(--miku-green) 50%, var(--miku-green-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(57, 197, 187, 0.3));
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s var(--ease-out) 0.4s forwards;
}

.title-en {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(14px, 4vw, 24px);
  font-weight: 400;
  letter-spacing: 20px;
  color: var(--text-secondary);
  margin-top: 12px;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out) 0.6s forwards;
}

.hero-subtitle {
  font-size: clamp(14px, 2.5vw, 18px);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s var(--ease-out) 0.8s forwards;
}

.hero-play {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 36px;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s var(--ease-out);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s var(--ease-out) 1s forwards;
}

.hero-play:hover {
  background: rgba(57, 197, 187, 0.15);
  border-color: var(--miku-green);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.hero-play .play-icon {
  transition: transform 0.3s var(--ease-spring);
}

.hero-play:hover .play-icon {
  transform: scale(1.1);
}

.hero-play.playing .play-icon {
  animation: pulse 1.5s ease infinite;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 11px;
  letter-spacing: 2px;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 1.5s forwards;
}

.hero-scroll-indicator svg {
  animation: bounce 2s ease infinite;
}

/* ========================================
   通用区块
   ======================================== */
.section {
  position: relative;
  z-index: 10;
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 6px;
  color: var(--miku-green);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 500px;
  margin: 0 auto;
}

/* ========================================
   Profile 区域 - 打字机效果
   ======================================== */
.profile {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.profile-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 64px;
}

.profile-image {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.9);
}

.profile-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 24px;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
}

.profile-badge:hover {
  border-color: var(--miku-green);
  box-shadow: var(--shadow-glow);
}

.badge-number {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--miku-green);
}

.badge-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.ripple-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border: 2px solid var(--miku-green);
  border-radius: 50%;
  animation: ripple 0.8s var(--ease-out) forwards;
  pointer-events: none;
}

@keyframes ripple {
  0% {
    width: 0;
    height: 0;
    opacity: 1;
    transform: translate(-50%, -50%);
  }
  100% {
    width: 200px;
    height: 200px;
    opacity: 0;
    transform: translate(-50%, -50%);
  }
}

.profile-data {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.data-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--glass-border);
}

.data-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--text-secondary);
  min-width: 60px;
}

.data-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  color: var(--text-primary);
}

.data-value.typing {
  border-right: 2px solid var(--miku-green);
  animation: blink 0.6s step-end infinite;
}

@keyframes blink {
  50% { border-color: transparent; }
}

.profile-quote {
  text-align: center;
  padding: 48px 0;
}

.profile-quote blockquote {
  font-size: clamp(20px, 4vw, 32px);
  font-weight: 300;
  letter-spacing: 4px;
  color: var(--miku-green);
  font-style: italic;
}

.quote-translate {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 12px;
  letter-spacing: 2px;
}

/* 时间线 */
.timeline-section {
  margin-top: 80px;
  padding-top: 80px;
  border-top: 1px solid var(--glass-border);
}

.timeline {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--miku-green), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
  padding-left: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--miku-green);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(57, 197, 187, 0.5);
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--miku-green);
  margin-bottom: 4px;
}

.timeline-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-content p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* 影响力 */
.impact-section {
  margin-top: 80px;
  padding-top: 80px;
  border-top: 1px solid var(--glass-border);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.impact-card {
  padding: 32px 24px;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all 0.3s var(--ease-out);
}

.impact-card:hover {
  border-color: rgba(57, 197, 187, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.impact-icon {
  margin-bottom: 16px;
}

.impact-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.impact-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Gallery 区域 - 横向滑动
   ======================================== */
.gallery {
  background: var(--bg-secondary);
  overflow: hidden;
}

.gallery-wrapper {
  position: relative;
}

.gallery-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 20px 0;
  -webkit-overflow-scrolling: touch;
}

.gallery-track::-webkit-scrollbar {
  display: none;
}

.gallery-item {
  flex: 0 0 auto;
  width: min(80vw, 400px);
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  overflow: hidden;
  scroll-snap-align: center;
  cursor: pointer;
  position: relative;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
  pointer-events: none;
}

.gallery-item:active {
  transform: scale(1.02) translateZ(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.gallery-item:active img {
  transform: scale(1.05);
}

/* 骨架屏 */
.gallery-skeleton {
  display: flex;
  gap: 20px;
  padding: 20px 0;
}

.skeleton-item {
  flex: 0 0 auto;
  width: min(80vw, 400px);
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  background: linear-gradient(
    90deg,
    var(--gray-800) 0%,
    var(--gray-600) 50%,
    var(--gray-800) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.gallery-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 32px;
}

.gallery-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all 0.3s var(--ease-out);
}

.gallery-btn:hover {
  background: rgba(57, 197, 187, 0.15);
  border-color: var(--miku-green);
}

.gallery-dots {
  display: flex;
  gap: 8px;
}

.gallery-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-600);
  transition: all 0.3s var(--ease-out);
  cursor: pointer;
}

.gallery-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--miku-green);
}

/* ========================================
   Music 区域 - 歌曲选择器
   ======================================== */
.music {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

/* 现在播放大卡片 */
.now-playing-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 48px;
  background: linear-gradient(135deg, rgba(57,197,187,0.15) 0%, rgba(168,85,247,0.1) 100%);
  border: 1px solid var(--glass-border);
}

.now-playing-bg {
  position: absolute;
  inset: 0;
  background: url('assets/images/player-cover.webp') center/cover no-repeat;
  filter: blur(60px) brightness(0.3);
  transform: scale(1.2);
}

.now-playing-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 40px;
}

.now-playing-disc {
  position: relative;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.now-playing-disc::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid rgba(57, 197, 187, 0.3);
}

.now-playing-disc img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.now-playing-disc.spinning {
  animation: spin 8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.now-playing-info {
  flex: 1;
  min-width: 0;
}

.now-playing-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.now-playing-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--miku-green);
  text-transform: uppercase;
}

/* 歌曲选择器 */
.song-selector {
  position: relative;
}

.song-selector-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(57, 197, 187, 0.15);
  border: 1px solid rgba(57, 197, 187, 0.3);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--miku-green);
  cursor: pointer;
  transition: all 0.2s;
}

.song-selector-btn:hover {
  background: rgba(57, 197, 187, 0.25);
  border-color: var(--miku-green);
}

.song-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  max-height: 320px;
  background: var(--gray-900);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
  z-index: 100;
  box-shadow: var(--shadow-lg);
}

.song-dropdown.active {
  opacity: 1;
  visibility: visible;
}

.song-dropdown-list {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px;
}

.song-dropdown-list::-webkit-scrollbar {
  width: 4px;
}

.song-dropdown-list::-webkit-scrollbar-thumb {
  background: var(--gray-600);
  border-radius: 2px;
}

.song-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.song-dropdown-item:hover {
  background: rgba(57, 197, 187, 0.1);
}

.song-dropdown-item.active {
  background: rgba(57, 197, 187, 0.15);
}

.song-dropdown-item.active .dropdown-item-title {
  color: var(--miku-green);
}

.dropdown-item-index {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--gray-600);
  min-width: 24px;
}

.dropdown-item-title {
  flex: 1;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-item-duration {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--gray-600);
}

/* 播放模式按钮 */
.play-mode-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.play-mode-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.play-mode-btn.active {
  background: rgba(57, 197, 187, 0.15);
  border-color: rgba(57, 197, 187, 0.4);
  color: var(--miku-green);
}

.play-mode-label {
  font-size: 11px;
  min-width: 24px;
}

.now-playing-title {
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.now-playing-artist {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.now-playing-progress {
  margin-bottom: 24px;
}

.now-playing-progress .progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: visible;
  margin-bottom: 8px;
  position: relative;
  cursor: pointer;
}

.now-playing-progress .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--miku-green), var(--miku-green-light));
  width: 0%;
  transition: width 0.1s linear;
  border-radius: 3px;
}

.now-playing-progress .progress-thumb {
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  background: var(--miku-green);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 0 10px rgba(57, 197, 187, 0.5);
  pointer-events: none;
}

.progress-bar:hover .progress-thumb {
  opacity: 1;
}

.progress-bar.dragging .progress-thumb {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.2);
}

.progress-times {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--text-secondary);
}

.now-playing-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.np-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all 0.3s var(--ease-out);
}

.np-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(1.05);
}

.np-btn-play {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--miku-green), var(--miku-green-dark));
  border: none;
  box-shadow: 0 0 40px rgba(57, 197, 187, 0.4);
}

.np-btn-play:hover {
  transform: scale(1.08);
  box-shadow: 0 0 60px rgba(57, 197, 187, 0.6);
}

/* 歌曲选择网格 */
.song-grid {
  display: none; /* 已废弃，由滑动选择器替代 */
}

/* ========================================
   垂直滑动式歌曲选择器 - 网易云风格
   ======================================== */
.song-picker {
  position: relative;
  margin-top: 32px;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.song-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
}

.song-picker-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--text-secondary);
}

.song-picker-count {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--miku-green);
  padding: 4px 10px;
  background: rgba(57, 197, 187, 0.15);
  border-radius: var(--radius-full);
}

.song-picker-viewport {
  position: relative;
  height: 280px;
  overflow: hidden;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

.song-picker-track {
  position: relative;
  padding: 60px 0;
  will-change: transform;
  will-change: transform;
}

.song-picker-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  margin: 0 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  transform: scale(0.92);
  opacity: 0.5;
  position: relative;
}

.song-picker-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0;
  background: var(--miku-green);
  border-radius: 0 2px 2px 0;
  transition: height 0.3s var(--ease-out);
}

.song-picker-item.active {
  transform: scale(1);
  opacity: 1;
  background: rgba(57, 197, 187, 0.08);
}

.song-picker-item.active::before {
  height: 60%;
}

.song-picker-item:hover {
  opacity: 0.85;
}

.song-picker-item.playing {
  opacity: 1;
}

.song-picker-item.playing .picker-item-title {
  color: var(--miku-green);
}

.picker-item-index {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(57, 197, 187, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--miku-green);
  flex-shrink: 0;
  transition: all 0.3s var(--ease-out);
}

.song-picker-item.active .picker-item-index {
  background: var(--miku-green);
  color: var(--dark);
  box-shadow: 0 0 20px rgba(57, 197, 187, 0.4);
}

.picker-item-info {
  flex: 1;
  min-width: 0;
}

.picker-item-title {
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.3s;
}

.picker-item-artist {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.picker-item-duration {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.picker-playing-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.picker-playing-icon::before,
.picker-playing-icon::after {
  content: '';
  position: absolute;
  width: 3px;
  height: 12px;
  background: var(--miku-green);
  border-radius: 1.5px;
}

.picker-playing-icon::before {
  left: 6px;
  animation: soundBar1 0.8s ease-in-out infinite;
}

.picker-playing-icon::after {
  right: 6px;
  animation: soundBar2 0.8s ease-in-out infinite 0.2s;
}

@keyframes soundBar1 {
  0%, 100% { transform: scaleY(0.4); }
  50% { transform: scaleY(1); }
}

@keyframes soundBar2 {
  0%, 100% { transform: scaleY(0.6); }
  50% { transform: scaleY(0.3); }
}

/* 中心指示器 */
.song-picker-indicator {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 10;
}

.indicator-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(57, 197, 187, 0.3) 20%,
    rgba(57, 197, 187, 0.6) 50%,
    rgba(57, 197, 187, 0.3) 80%,
    transparent 100%
  );
}

/* 渐变遮罩 */
.song-picker::before,
.song-picker::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 60px;
  pointer-events: none;
  z-index: 5;
}

.song-picker::before {
  top: 48px;
  background: linear-gradient(to bottom, var(--bg-secondary), transparent);
}

.song-picker::after {
  bottom: 0;
  background: linear-gradient(to top, var(--bg-secondary), transparent);
}

/* ========================================
   页脚
   ======================================== */
.footer {
  position: relative;
  z-index: 10;
  padding: 80px 0 40px;
  background: var(--bg-primary);
  border-top: 1px solid var(--glass-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-icon {
  filter: drop-shadow(0 0 12px rgba(57, 197, 187, 0.4));
}

.footer-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
}

.footer-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 40px;
}

.footer-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--miku-green);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--glass-border);
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========================================
   灯箱
   ======================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s var(--ease-out);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  transform: scale(0.9);
  transition: transform 0.4s var(--ease-out);
}

.lightbox.active .lightbox-img {
  transform: scale(1);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease-out);
}

.lightbox-close {
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(57, 197, 187, 0.2);
  border-color: var(--miku-green);
}

.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
}

.lightbox-prev {
  left: 24px;
}

.lightbox-next {
  right: 24px;
}

.lightbox-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-secondary);
}

/* ========================================
   动画
   ======================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .profile-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .profile-image {
    max-width: 400px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.98);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    flex-direction: column;
    padding: 32px 24px;
    gap: 24px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--ease-out);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .section {
    padding: 80px 0;
  }

  .now-playing-content {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
    gap: 24px;
  }

  .now-playing-disc {
    width: 160px;
    height: 160px;
  }

  .now-playing-title {
    font-size: 24px;
  }

  .now-playing-controls {
    justify-content: center;
  }

  .song-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .gallery-item {
    width: min(85vw, 350px);
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .title-cn {
    letter-spacing: 8px;
  }

  .title-en {
    letter-spacing: 10px;
  }

  .now-playing-disc {
    width: 140px;
    height: 140px;
  }

  .song-grid {
    grid-template-columns: 1fr;
  }

  /* 滑动选择器移动端适配 */
  .song-picker {
    margin-top: 24px;
    border-radius: var(--radius-md);
  }

  .song-picker-viewport {
    height: 240px;
  }

  .song-picker-track {
    padding: 50px 0;
  }

  .song-picker-item {
    padding: 12px 16px;
    margin: 0 8px;
    gap: 12px;
  }

  .picker-item-index {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .picker-item-title {
    font-size: 14px;
  }

  .picker-item-duration {
    font-size: 10px;
  }

  .gallery-item {
    width: min(90vw, 300px);
  }

  .gallery-btn {
    width: 40px;
    height: 40px;
  }

  .lightbox-prev,
  .lightbox-next {
    width: 44px;
    height: 44px;
  }

  .lightbox-prev {
    left: 12px;
  }

  .lightbox-next {
    right: 12px;
  }
}