/* ============================================================
   CSS - 核心样式
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-deep: #0c0c1a;
  --bg-dark: #151530;
  --purple-deep: #4c1d95;
  --purple-mid: #8b5cf6;
  --purple-neon: #d4a0ff;
  --purple-bright: #e0b0ff;
  --red-neon: #ff6b6b;
  --silver: #f0f0f5;
  --silver-dim: #aaaabc;
  --gold: #fbbf24;
  --gold-bright: #fde68a;
  --cyan-neon: #22d3ee;
  --cyan-bright: #67e8f9;
  --pink-neon: #f472b6;
  --glass-bg: rgba(20, 20, 45, 0.7);
  --glass-border: rgba(192, 132, 252, 0.3);
  --card-bg: linear-gradient(180deg, rgba(25,25,50,0.92) 0%, rgba(15,15,35,0.95) 100%);
  --card-shadow: 0 0 40px rgba(192,132,252,0.2), 0 0 80px rgba(34,211,238,0.1), 0 20px 60px rgba(0,0,0,0.6);
  --card-radius: 24px;
  --font-main: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-display: 'Orbitron', 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  --font-code: 'Consolas', 'Courier New', monospace;
  /* Typography Scale */
  --text-display: clamp(1.8rem, 4vw, 2.8rem);
  --text-heading: clamp(1.2rem, 3vw, 1.8rem);
  --text-subhead: clamp(0.95rem, 2.5vw, 1.15rem);
  --text-body: clamp(0.85rem, 2vw, 1rem);
  --text-caption: 0.75rem;
  --text-micro: 0.65rem;
  /* Transition Tokens */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 400ms;
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s ease;
  /* Spacing Scale (4px base) */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;  --space-4: 16px;
  --space-6: 24px; --space-8: 32px; --space-12: 48px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; }
body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--silver);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
}
body::-webkit-scrollbar { display: none; }

/* ---------- Background Noise Texture ---------- */
body::after {
  content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ---------- Glass Card Top-Edge Highlight ---------- */
.submit-card, #player-panel, .fragment-popup, .horoscope-card, .chain-container,
.chain-fixed-panel, .about-card, .mobile-sheet .sheet-body, #fortune-sheet .sheet-body,
#chain-sheet .sheet-body, #player-sheet .sheet-body {
  position: relative; overflow: hidden;
}
.submit-card::after, #player-panel::after, .fragment-popup::after, .horoscope-card::after,
.chain-container::after, .chain-fixed-panel::after, .about-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), rgba(255,255,255,0.12), transparent);
  z-index: 10; pointer-events: none;
}

/* ---------- Void Nebula Background ---------- */
#section-void::before {
  content: ''; position: fixed; top: 30%; left: 50%; transform: translate(-50%, -50%);
  width: 600px; height: 600px; border-radius: 50%; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse, rgba(139,92,246,0.06) 0%, rgba(34,211,238,0.03) 30%, transparent 60%),
              radial-gradient(ellipse at 30% 60%, rgba(192,132,252,0.04) 0%, transparent 50%);
  animation: nebula-drift 20s ease-in-out infinite;
}
@keyframes nebula-drift {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  33% { transform: translate(-48%, -48%) scale(1.08); }
  66% { transform: translate(-52%, -52%) scale(0.94); }
}

/* ---------- Input Focus Enhancement ---------- */
#frag-nickname, #frag-lyric {
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
#frag-nickname:focus, #frag-lyric:focus {
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 30px rgba(192,132,252,0.25), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* ---------- Particle Canvas ---------- */
#particle-canvas { position: fixed; top: 0; left: 0; z-index: 0; pointer-events: none; }

/* Full-page waveform bar with LRC overlay */
#waveform-bar {
  position: fixed; bottom: 0; left: 0; right: 0; height: 150px; z-index: 5;
  pointer-events: none; transition: opacity 0.8s ease;
}
#waveform-bar.hidden { opacity: 0; }
#waveform-canvas {
  position: absolute; bottom: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none; opacity: 0.35;
  mask-image: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
}
.waveform-divider {
  position: absolute; top: 0; left: 5%; right: 5%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(192,132,252,0.15), transparent);
}
#waveform-lyrics {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  padding: 20px 40px;
}
.wl-current {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.3rem; font-weight: 400; letter-spacing: 0.06em;
  text-align: center; max-width: 800px; line-height: 1.6;
  background: linear-gradient(90deg, rgba(255,255,255,0.92), rgba(224,176,255,0.82), rgba(103,232,249,0.65));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 14px rgba(192,132,252,0.45)) drop-shadow(0 0 3px rgba(255,255,255,0.15));
  transition: opacity 0.5s ease;
}
@media (max-width: 768px) {
  .wl-current { font-size: 1rem; padding: 0 20px; }
}

/* ---------- Splash / Welcome ---------- */
#welcome-page {
  position: fixed; inset: 0; z-index: 10000;
  background: radial-gradient(ellipse at center, #1a1030 0%, #0c0c1a 70%);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 1s ease, filter 1s ease, transform 1s ease;
}
#welcome-page.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.splash-inner {
  display: flex; flex-direction: column; align-items: center;
  position: relative; z-index: 1;
}

/* ── Image ── */
.splash-image {
  position: relative; margin-bottom: 2rem;
}
.splash-image #gate-image {
  width: 180px; height: 180px; object-fit: contain;
  border-radius: 22px;
  filter: drop-shadow(0 0 40px rgba(192,132,252,0.4)) drop-shadow(0 0 80px rgba(139,92,246,0.2));
  animation: splash-float 4s ease-in-out infinite;
  z-index: 1; position: relative;
}
@keyframes splash-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.splash-glow {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 220px; height: 220px;
  background: radial-gradient(ellipse, rgba(192,132,252,0.15) 0%, transparent 70%);
  animation: splash-glow-pulse 3s ease-in-out infinite;
  pointer-events: none; border-radius: 50%;
}
@keyframes splash-glow-pulse {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

/* ── Title ── */
.splash-title {
  font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900; color: var(--silver);
  text-shadow: 0 0 30px var(--purple-bright), 0 0 60px var(--purple-neon);
  letter-spacing: 0.2em; margin-bottom: 0.3rem;
}
.splash-sub {
  font-family: var(--font-display); font-size: 0.85rem; color: var(--silver-dim);
  letter-spacing: 0.4em; margin-bottom: 2.2rem;
}

/* ── Progress Bar ── */
.splash-progress {
  width: 220px; height: 3px; background: rgba(255,255,255,0.08);
  border-radius: 2px; overflow: hidden;
  transition: opacity 0.5s ease, height 0.5s ease, margin 0.5s ease;
}
.splash-progress.done { opacity: 0; height: 0; margin-bottom: 0; }
.splash-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #8b5cf6, #22d3ee, #c084fc);
  background-size: 200% 100%;
  animation: splash-load 4s cubic-bezier(0.4, 0, 0.2, 1) forwards, splash-shift 2s linear infinite;
}
@keyframes splash-load { to { width: 100%; } }
@keyframes splash-shift { 0% { background-position: 0% 0; } 100% { background-position: 200% 0; } }

/* ── Entry Button ── */
.splash-entry {
  display: flex; flex-direction: column; align-items: center;
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.splash-entry.visible { opacity: 1; transform: translateY(0); }
.enter-btn {
  position: relative; background: transparent; border: 2px solid #c084fc;
  color: #e0d0ff; font-family: var(--font-main); font-size: 1rem;
  padding: 12px 44px; cursor: pointer; letter-spacing: 0.3em;
  transition: all 0.3s ease; overflow: hidden;
}
.enter-btn::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(192,132,252,0.15), transparent);
  transition: left 0.5s ease;
}
.enter-btn:hover {
  background: rgba(192,132,252,0.15); border-color: #fff;
  box-shadow: 0 0 30px rgba(192,132,252,0.4), 0 0 60px rgba(192,132,252,0.15);
  transform: scale(1.04);
}
.enter-btn:hover::after { left: 100%; }
.enter-hint {
  margin-top: 1rem; font-size: 0.7rem; color: rgba(255,255,255,0.2);
  letter-spacing: 0.3em; animation: splash-hint 2s ease-in-out infinite;
}
@keyframes splash-hint { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.7; } }

/* ---------- Main App ---------- */
#main-app { position: fixed; inset: 0; z-index: 20; opacity: 0; visibility: hidden; transition: opacity 1s ease, visibility 1s ease; }
#main-app.visible { opacity: 1; visibility: visible; }

/* ---------- Navigation ---------- */
/* Logo */
#site-logo { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 100; text-align: center; pointer-events: none; }
.logo-img { display: block; margin: 0 auto 4px; }
.logo-text { font-family: var(--font-display); font-size: 1rem; font-weight: 900; color: var(--silver); text-shadow: 0 0 20px var(--purple-neon); letter-spacing: 0.25em; display: block; }
.logo-sub { font-size: 0.6rem; color: var(--silver-dim); letter-spacing: 0.3em; display: block; margin-top: 1px; }

#main-nav { position: fixed; top: 155px; left: 50%; transform: translateX(-50%); z-index: 100; display: flex; gap: 12px; }
.nav-btn {
  background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 50px;
  color: var(--silver); font-family: var(--font-main); font-size: 0.85rem;
  padding: 10px 20px; cursor: pointer; display: flex; align-items: center; gap: 8px;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-medium); letter-spacing: 0.1em;
}
.nav-btn:hover, .nav-btn.active { background: rgba(192,132,252,0.25); border-color: var(--purple-bright); box-shadow: 0 0 20px rgba(192,132,252,0.3); color: #fff; }
.nav-icon { font-size: 1rem; }

/* ---------- App Sections ---------- */
.app-section { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity var(--transition-slow), visibility var(--transition-slow); overflow-y: auto; }
.app-section.active { opacity: 1; visibility: visible; }

/* ---------- Fragment Bubbles ---------- */
#fragments-container { position: absolute; top: 0; left: 325px; right: 0; bottom: 160px; z-index: 1; overflow: hidden; }
/* Divider between bubbles and waveform */
#fragments-container::after {
  content: ''; position: absolute; bottom: -15px; left: 0; right: 0; height: 60px; z-index: 2; pointer-events: none;
  background:
    radial-gradient(ellipse 90% 50px at 10% 100%, rgba(251,191,36,0.28) 0%, transparent 60%),
    radial-gradient(ellipse 70% 40px at 30% 100%, rgba(244,114,182,0.22) 0%, transparent 60%),
    radial-gradient(ellipse 80% 45px at 50% 100%, rgba(139,92,246,0.24) 0%, transparent 60%),
    radial-gradient(ellipse 75% 40px at 70% 100%, rgba(34,211,238,0.20) 0%, transparent 60%),
    radial-gradient(ellipse 60% 30px at 90% 100%, rgba(249,115,22,0.18) 0%, transparent 60%);
  mask-image: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
}
.fragment-bubble {
  position: absolute; padding: 10px 18px; border-radius: 50px;
  color: #fff; cursor: pointer;
  border: 1px solid rgba(255,255,255,0.2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  z-index: 5; user-select: none;
  -webkit-tap-highlight-color: transparent;
  background: rgba(25,25,50,0.75) !important;
  box-shadow: 0 0 12px currentColor, 0 4px 20px rgba(0,0,0,0.3);
}
/* Float animation: both ends invisible → cycle restart not seen */
@keyframes float-up {
  0%   { top: 105%; opacity: 0; }
  6%   { top: 94%;  opacity: 0.7; }
  94%  { top: 6%;   opacity: 0.7; }
  100% { top: -5%;  opacity: 0; }
}
@keyframes bubble-burst { 0% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.5); opacity: 0.5; } 100% { transform: scale(0); opacity: 0; } }
.bubble-sparkle {
  position: absolute; pointer-events: none; width: 6px; height: 6px; border-radius: 50%;
  animation: sparkle-fly 0.7s ease-out forwards;
}
@keyframes sparkle-fly { 0% { transform: translate(0, 0) scale(1); opacity: 1; } 100% { transform: translate(var(--sx), var(--sy)) scale(0); opacity: 0; } }
.void-intro { position: relative; z-index: 2; text-align: center; pointer-events: none; }
.void-title {
  font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 900;
  background: linear-gradient(135deg, var(--purple-bright), var(--cyan-bright), var(--purple-neon));
  background-size: 200% 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  animation: gradient-shift 3s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(192,132,252,0.4));
  letter-spacing: 0.2em; margin-bottom: 1rem;
}
.void-desc { font-size: 1rem; color: var(--silver-dim); line-height: 1.8; letter-spacing: 0.1em; }

/* ---------- Submit Fragment ---------- */
.submit-card {
  position: relative;
  background: var(--card-bg);
  border: 2px solid transparent; border-radius: var(--card-radius);
  padding: 40px 36px; max-width: 500px; width: 90%;
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--card-shadow);
}
.submit-card::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--cyan-bright), var(--purple-neon), var(--pink-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; padding: 3px;
}
.submit-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); color: var(--silver-dim); cursor: pointer; font-size: 1rem; transition: all 0.2s; }
.submit-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
.submit-title { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; background: linear-gradient(90deg, var(--purple-bright), var(--cyan-bright)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: 0.15em; margin-bottom: 0.5rem; text-align: center; }
.submit-desc { font-size: 0.9rem; color: var(--silver-dim); text-align: center; margin-bottom: 2rem; line-height: 1.6; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-size: 0.8rem; color: var(--silver-dim); margin-bottom: 0.5rem; letter-spacing: 0.15em; text-transform: uppercase; }
#frag-nickname {
  width: 100%; padding: 10px 12px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(192,132,252,0.3);
  border-radius: 10px; color: var(--silver); font-family: var(--font-main); font-size: 0.9rem;
  transition: border-color var(--transition-fast);
}
#frag-nickname:focus { outline: none; border-color: var(--purple-bright); box-shadow: 0 0 20px rgba(192,132,252,0.2); }
#frag-lyric {
  width: 100%; height: 80px; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(192,132,252,0.3); border-radius: 10px;
  color: var(--silver); font-family: var(--font-main); font-size: 0.95rem; padding: 12px; resize: none;
  transition: border-color var(--transition-fast);
}
#frag-lyric:focus { outline: none; border-color: var(--purple-bright); box-shadow: 0 0 25px rgba(192,132,252,0.3); background: rgba(255,255,255,0.08); }
.char-count { font-size: 0.75rem; color: var(--silver-dim); display: block; text-align: right; margin-top: 4px; }
.color-picker-row { display: flex; align-items: center; gap: 12px; }
#frag-color { width: 50px; height: 36px; border: none; border-radius: 8px; cursor: pointer; background: transparent; }
.color-hex { font-family: var(--font-code); font-size: 0.9rem; color: var(--silver); }
.color-presets { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.color-dot { width: 28px; height: 28px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; transition: transform 0.2s, border-color 0.2s; }
.color-dot:hover { transform: scale(1.2); border-color: #fff; }
.color-dot.active { border-color: #fff; transform: scale(1.15); }
.submit-btn {
  width: 100%; padding: 14px; background: linear-gradient(135deg, var(--purple-mid), var(--purple-deep));
  border: 1px solid var(--purple-bright); border-radius: 12px; color: #fff;
  font-family: var(--font-main); font-size: 1rem; cursor: pointer; letter-spacing: 0.2em;
  transition: all var(--transition-medium); text-shadow: 0 0 6px rgba(255,255,255,0.3);
}
.submit-btn:hover { box-shadow: 0 0 40px rgba(192,132,252,0.6), 0 0 80px rgba(192,132,252,0.2); transform: translateY(-2px); border-color: #fff; }
#submit-feedback { margin-top: 1rem; text-align: center; padding: 12px; border-radius: 10px; font-size: 0.9rem; }
#submit-feedback.success { background: rgba(6,182,212,0.15); color: var(--cyan-neon); border: 1px solid rgba(6,182,212,0.3); }
#submit-feedback.error { background: rgba(239,68,68,0.15); color: var(--red-neon); border: 1px solid rgba(239,68,68,0.3); }

/* ---------- Music Player ---------- */
#music-player { position: fixed; bottom: 10px; right: 20px; z-index: 150; }
.player-dot {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(34,211,238,0.1));
  border: 2px solid var(--purple-neon); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition-medium);
  animation: dot-pulse 2.5s ease-in-out infinite;
  box-shadow: 0 0 18px rgba(192,132,252,0.4), inset 0 0 18px rgba(192,132,252,0.1);
}
@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 18px rgba(192,132,252,0.4), inset 0 0 18px rgba(192,132,252,0.1); }
  50% { box-shadow: 0 0 35px rgba(192,132,252,0.7), 0 0 60px rgba(34,211,238,0.3), inset 0 0 25px rgba(192,132,252,0.2); }
}
.player-dot:hover { box-shadow: 0 0 50px rgba(192,132,252,0.9), 0 0 80px rgba(34,211,238,0.4); transform: scale(1.12); }
.player-dot.playing { border-color: var(--cyan-bright); animation: dot-spin 2s linear infinite, dot-pulse 2.5s ease-in-out infinite; }
@keyframes dot-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.dot-inner { font-size: 1.4rem; color: var(--purple-bright); transition: color 0.3s; animation: dot-icon-bounce 0.6s ease-in-out infinite; }
.player-dot.playing .dot-inner { color: var(--cyan-bright); }
@keyframes dot-icon-bounce { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.2); } }
#player-panel {
  position: absolute; bottom: 70px; right: 0; width: 340px;
  background: var(--card-bg);
  border: 2px solid transparent; border-radius: var(--card-radius); padding: 24px;
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--card-shadow);
  overflow: visible;
}
#player-panel::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--cyan-bright), var(--pink-neon), var(--purple-neon), var(--cyan-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; padding: 3px;
}
@keyframes panel-border-glow { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.player-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.player-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; background: linear-gradient(90deg, var(--purple-bright), var(--cyan-bright)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: 0.2em; }
.player-vinyl-spin { width: 32px; height: 32px; border-radius: 50%; background: conic-gradient(#111 0deg 45deg, #222 45deg 90deg, #111 90deg 135deg, #222 135deg 180deg, #111 180deg 225deg, #222 225deg 270deg, #111 270deg 315deg, #222 315deg 360deg); border: 3px solid rgba(192,132,252,0.5); position: relative; display: none; }
.player-vinyl-spin::after { content: ''; position: absolute; top: 50%; left: 50%; width: 8px; height: 8px; border-radius: 50%; background: var(--purple-bright); transform: translate(-50%, -50%); }
.player-vinyl-spin.spinning { display: block; animation: vinyl-rotate 2s linear infinite; }
@keyframes vinyl-rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.player-close-btn { background: none; border: none; color: var(--silver-dim); font-size: 1.4rem; cursor: pointer; transition: all 0.2s; }
.player-close-btn:hover { color: #fff; text-shadow: 0 0 10px var(--purple-bright); }
.player-visualizer { margin-bottom: 12px; }
#visualizer-canvas { width: 100%; height: 64px; border-radius: 10px; background: rgba(0,0,0,0.4); border: 1px solid rgba(192,132,252,0.15); }
.player-info { text-align: center; margin-bottom: 16px; }
.player-song-title { font-size: 1.05rem; color: #fff; font-weight: 700; text-shadow: 0 0 10px rgba(192,132,252,0.4); letter-spacing: 0.1em; transition: color 0.3s; }
.player-song-title:hover { color: var(--purple-bright); }
.player-song-artist { font-size: 0.8rem; color: var(--silver-dim); margin-top: 3px; }
.player-controls { display: flex; justify-content: center; align-items: center; gap: 20px; margin-bottom: 16px; }
.ctrl-btn { background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)); border: 1px solid rgba(192,132,252,0.25); border-radius: 50%; width: 44px; height: 44px; color: var(--silver); font-size: 1rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); }
.ctrl-btn:hover { background: rgba(192,132,252,0.25); border-color: var(--purple-bright); box-shadow: 0 0 20px rgba(192,132,252,0.4); color: #fff; transform: scale(1.08); }
.ctrl-play { width: 56px; height: 56px; font-size: 1.3rem; background: linear-gradient(135deg, rgba(192,132,252,0.3), rgba(139,92,246,0.2)); border-color: var(--purple-neon); box-shadow: 0 0 25px rgba(192,132,252,0.35); }
.ctrl-play:hover { background: linear-gradient(135deg, rgba(192,132,252,0.45), rgba(139,92,246,0.3)); box-shadow: 0 0 40px rgba(192,132,252,0.6); transform: scale(1.1); }
.player-volume-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.vol-icon { font-size: 1rem; }
.volume-slider { flex: 1; -webkit-appearance: none; appearance: none; height: 5px; background: linear-gradient(90deg, rgba(192,132,252,0.3), rgba(34,211,238,0.2)); border-radius: 3px; outline: none; }
.volume-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; background: var(--purple-bright); border-radius: 50%; cursor: pointer; box-shadow: 0 0 12px rgba(192,132,252,0.6); }
.player-playlist { margin-bottom: 16px; }
.playlist-title { font-size: 0.75rem; color: var(--silver-dim); text-transform: uppercase; letter-spacing: 0.2em; margin-bottom: 10px; }
#playlist-ul { list-style: none; max-height: 140px; overflow-y: auto; }
#playlist-ul::-webkit-scrollbar { width: 3px; } #playlist-ul::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.3); border-radius: 2px; }
#playlist-ul li { padding: 9px 14px; font-size: 0.85rem; color: var(--silver-dim); cursor: pointer; border-radius: 10px; margin-bottom: 4px; transition: all var(--transition-fast); }
#playlist-ul li:hover { background: rgba(192,132,252,0.15); color: var(--silver); }
#playlist-ul li.active { background: linear-gradient(90deg, rgba(192,132,252,0.25), rgba(34,211,238,0.1)); color: #fff; font-weight: 700; text-shadow: 0 0 8px rgba(192,132,252,0.4); border-left: 3px solid var(--purple-bright); padding-left: 11px; }

/* ---------- Lyrics Overlay ---------- */
#lyrics-overlay { position: fixed; inset: 0; z-index: 9999; background: radial-gradient(ellipse at center, rgba(18,18,40,0.88) 0%, rgba(8,8,20,0.96) 100%); display: flex; flex-direction: column; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity 0.6s ease, visibility 0.6s ease; }
#lyrics-overlay.visible { opacity: 1; visibility: visible; }
.lyrics-backdrop { position: absolute; inset: 0; background: radial-gradient(circle at 50% 50%, rgba(192,132,252,0.12) 0%, rgba(34,211,238,0.04) 50%, transparent 75%); animation: lyrics-aura 3s ease-in-out infinite; }
@keyframes lyrics-aura { 0%, 100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }
.lyrics-sparkle-canvas { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.lyrics-content { position: relative; z-index: 2; max-width: 900px; width: 92%; max-height: 72vh; overflow-y: auto; overflow-x: hidden; text-align: center; scroll-behavior: smooth; padding: 20px 0; }
.lyrics-content::-webkit-scrollbar { width: 4px; } .lyrics-content::-webkit-scrollbar-track { background: transparent; } .lyrics-content::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.3); border-radius: 2px; }
.lyrics-title-bar { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 50px; position: sticky; top: 0; z-index: 3; background: linear-gradient(180deg, rgba(8,8,20,0.95) 60%, transparent 100%); padding-bottom: 20px; }
.lyrics-song-name { font-family: var(--font-display); font-size: 1.6rem; font-weight: 900; background: linear-gradient(135deg, var(--purple-bright), var(--cyan-bright), var(--pink-neon), var(--purple-bright)); background-size: 300% 300%; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; animation: gradient-shift 2.5s ease-in-out infinite; letter-spacing: 0.25em; filter: drop-shadow(0 0 12px rgba(192,132,252,0.5)); }
@keyframes gradient-shift { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.lyrics-close-btn { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(192,132,252,0.3); color: var(--silver-dim); font-size: 1.3rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition-medium); }
.lyrics-close-btn:hover { border-color: var(--purple-bright); color: #fff; box-shadow: 0 0 25px rgba(192,132,252,0.5); background: rgba(192,132,252,0.15); }
.lyrics-lines-container { position: relative; display: flex; flex-direction: column; gap: 20px; align-items: center; padding: 0 20px; }
.lyrics-line-item { font-family: var(--font-main); font-size: 1.35rem; color: rgba(255,255,255,0.35); font-weight: 300; transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1); letter-spacing: 0.1em; padding: 10px 28px; border-radius: 14px; text-shadow: 0 0 3px rgba(255,255,255,0.05); transform: scale(0.88); }
.lyrics-line-item.active { color: #fff; font-size: 2.2rem; font-weight: 800; transform: scale(1); text-shadow: 0 0 8px var(--purple-bright), 0 0 20px var(--purple-neon), 0 0 45px var(--purple-mid), 0 0 80px rgba(139,92,246,0.5), 0 0 120px rgba(192,132,252,0.3), 0 2px 4px rgba(0,0,0,0.5); background: linear-gradient(90deg, rgba(192,132,252,0.22) 0%, rgba(34,211,238,0.12) 50%, rgba(192,132,252,0.22) 100%); animation: active-line-pulse 2s ease-in-out infinite; letter-spacing: 0.15em; }
@keyframes active-line-pulse { 0%, 100% { text-shadow: 0 0 8px var(--purple-bright), 0 0 20px var(--purple-neon), 0 0 45px var(--purple-mid); } 33% { text-shadow: 0 0 15px var(--cyan-bright), 0 0 35px var(--cyan-neon), 0 0 60px var(--purple-mid), 0 0 100px var(--purple-neon); } 66% { text-shadow: 0 0 12px var(--pink-neon), 0 0 28px var(--purple-neon), 0 0 55px var(--purple-mid), 0 0 90px rgba(244,114,182,0.4); } }
.lyrics-line-item.past { color: rgba(255,255,255,0.5); transform: scale(0.9); text-shadow: 0 0 8px rgba(192,132,252,0.25); font-weight: 300; }
.lyrics-progress { position: sticky; bottom: 0; margin-top: 30px; width: 400px; height: 3px; background: rgba(255,255,255,0.06); border-radius: 2px; overflow: hidden; box-shadow: 0 0 20px rgba(0,0,0,0.3); }
.lyrics-progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--purple-bright), var(--cyan-bright), var(--pink-neon)); border-radius: 2px; transition: width 0.4s ease; box-shadow: 0 0 10px rgba(192,132,252,0.5); }
.lyrics-hint { position: absolute; bottom: 50px; left: 50%; transform: translateX(-50%); font-size: 0.8rem; color: var(--silver-dim); letter-spacing: 0.2em; opacity: 0; transition: opacity 0.5s; }
.lyrics-hint.show { opacity: 0.7; }

/* ---------- Beat Glow ---------- */
#beat-glow { position: fixed; inset: 0; z-index: 1; pointer-events: none; background: radial-gradient(ellipse at 50% 50%, rgba(192,132,252,0) 0%, transparent 70%); opacity: 0; transition: opacity 0.15s ease; }

/* ---------- CTA Float ---------- */
.cta-float { position: fixed; bottom: 120px; left: 50%; transform: translateX(-50%); z-index: 44; background: linear-gradient(135deg, rgba(192,132,252,0.2), rgba(139,92,246,0.15)); border: 1px solid var(--purple-bright); border-radius: 50px; color: var(--purple-bright); font-family: var(--font-main); font-size: 0.9rem; padding: 12px 28px; cursor: pointer; display: flex; align-items: center; gap: 10px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); transition: all var(--transition-medium); letter-spacing: 0.12em; animation: cta-glow 2.5s ease-in-out infinite; box-shadow: 0 0 25px rgba(192,132,252,0.2); }
.cta-float:hover { background: rgba(192,132,252,0.35); border-color: #fff; color: #fff; box-shadow: 0 0 40px rgba(192,132,252,0.5); transform: translateX(-50%) scale(1.05); }
@keyframes cta-glow { 0%, 100% { box-shadow: 0 0 25px rgba(192,132,252,0.2); } 50% { box-shadow: 0 0 40px rgba(192,132,252,0.4), 0 0 60px rgba(34,211,238,0.15); } }
.cta-icon { font-size: 1.1rem; animation: cta-sparkle 1.5s ease-in-out infinite; }
.cta-close {
  position: absolute; top: -8px; right: -8px;
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(20,20,40,0.9); border: 1px solid rgba(192,132,252,0.4);
  color: var(--silver-dim); font-size: 0.7rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.cta-close:hover { color: #fff; border-color: #fff; background: rgba(239,68,68,0.3); }
@keyframes cta-sparkle { 0%, 100% { transform: scale(1) rotate(0deg); } 50% { transform: scale(1.3) rotate(30deg); } }

/* ---------- Easter Egg ---------- */
#easter-popup { position: fixed; top: 20%; left: 50%; transform: translate(-50%, -50%); z-index: 2000; opacity: 0; visibility: hidden; transition: opacity 0.4s, visibility 0.4s; }
#easter-popup.visible { opacity: 1; visibility: visible; }
.easter-content { background: var(--card-bg); border: 2px solid var(--purple-neon); border-radius: var(--card-radius); padding: 28px 36px; display: flex; flex-direction: column; align-items: center; gap: 12px; backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); box-shadow: 0 0 40px rgba(168,85,247,0.4), 0 20px 60px rgba(0,0,0,0.6); }
.easter-icon { font-size: 2rem; } #easter-text { font-size: 1rem; color: var(--silver); text-align: center; line-height: 1.6; }

/* About Overlay */
.about-overlay { position: fixed; inset: 0; z-index: 3000; background: rgba(5,5,15,0.94); display: flex; align-items: center; justify-content: center; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.about-overlay.hidden { display: none; }
.about-card { position: relative; background: var(--card-bg); border: 2px solid transparent; border-radius: var(--card-radius); max-width: 620px; width: 92vw; max-height: 85vh; overflow: hidden; box-shadow: var(--card-shadow); }
.about-card::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--cyan-bright), var(--purple-neon), var(--pink-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; padding: 3px;
}
.about-close { position: absolute; top: 16px; right: 16px; z-index: 2; width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); color: var(--silver-dim); cursor: pointer; font-size: 1.1rem; transition: all 0.2s; }
.about-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
.about-scroll { padding: 50px 44px 60px; max-height: 80vh; overflow-y: auto; color: var(--silver); line-height: 2; }
.about-scroll::-webkit-scrollbar { width: 3px; } .about-scroll::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.25); border-radius: 2px; }
.about-scroll h2 { font-family: var(--font-display); font-size: 1.6rem; background: linear-gradient(90deg, var(--purple-bright), var(--cyan-bright)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 2px; filter: drop-shadow(0 0 12px rgba(192,132,252,0.3)); }
.about-scroll .about-subtitle { color: var(--silver-dim); font-size: 0.8rem; margin-bottom: 28px; letter-spacing: 0.15em; padding-bottom: 20px; border-bottom: 1px solid rgba(192,132,252,0.12); }
.about-scroll h3 { color: var(--purple-neon); font-size: 1rem; margin: 30px 0 10px; letter-spacing: 0.08em; }
.about-scroll h3::before { content: '✦ '; color: var(--purple-bright); font-size: 0.7rem; }
.about-scroll p { font-size: 0.92rem; margin-bottom: 14px; }
.about-scroll .about-ending { color: var(--purple-bright); font-style: italic; margin-top: 32px; padding-top: 20px; border-top: 1px solid rgba(192,132,252,0.12); text-align: center; font-size: 0.95rem; }

/* Dev Timeline */
.about-timeline { margin-top: 18px; }
.tl-item {
  position: relative; padding: 10px 0 10px 56px; margin-bottom: 2px;
  font-size: 0.78rem; color: var(--silver-dim); line-height: 1.7;
  border-left: 1px solid rgba(192,132,252,0.1);
}
.tl-item:last-child { border-left-color: transparent; }
.tl-ver {
  position: absolute; left: -40px; top: 10px;
  background: rgba(192,132,252,0.12); border: 1px solid rgba(192,132,252,0.25);
  border-radius: 6px; padding: 2px 8px; font-size: 0.62rem;
  color: var(--purple-bright); font-family: var(--font-code); white-space: nowrap;
  letter-spacing: 0.04em;
}
.tl-date {
  color: var(--purple-neon); font-size: 0.65rem; font-weight: 600;
  margin-right: 8px; letter-spacing: 0.03em;
}

/* ---------- Utility ---------- */
.hidden { display: none !important; }

/* ============================================================
   RESPONSIVE — Mobile + Tablet
   ============================================================ */
@media (max-width: 768px) {
  html, body { height: 100dvh; overflow: hidden; }
  #welcome-page { padding: 20px; }
  .splash-image #gate-image { width: 130px; height: 130px; }
  .splash-title { font-size: 1.5rem; }
  #site-logo { top: 10px; }
  .logo-img { width: 55px !important; height: 55px !important; }
  .logo-text { font-size: 0.8rem; }
  #main-nav { top: 120px; gap: 6px; }
  .nav-btn { padding: 8px 14px; font-size: 0.75rem; }
  .void-title { font-size: 1.5rem; }
  .void-desc { font-size: 0.8rem; }
  .submit-card { padding: 30px 24px; max-width: 92vw; }
  #music-player { bottom: calc(5px + env(safe-area-inset-bottom, 0px)); right: 5px; }
  /* Mobile: player panel collapsed by default, dot always visible */
  #player-panel { display: none; }
  #player-panel.mobile-open { display: block; width: 280px; max-width: 90vw; right: 0; bottom: 60px; }
  .player-dot { width: 44px; height: 44px; display: flex !important; }
  /* Mobile: fortune card hidden — accessed via Dock Sheet */
  #horoscope-card { display: none; }
  #music-player { bottom: calc(5px + env(safe-area-inset-bottom, 0px) + 65px); right: 5px; }
  .cta-float { bottom: 75px; font-size: 0.75rem; padding: 10px 18px; }
  #lyrics-overlay .lyrics-line-item.active { font-size: 1.4rem; }
  #beat-glow { display: none; }
  .fragment-popup { width: 92vw !important; max-height: 85vh; }
  .fp-content { font-size: 1rem; }
}
/* Medium screens — shrink to avoid overlap */
@media (min-width: 769px) and (max-width: 1100px) {
  #player-panel { width: 280px; }
  .horoscope-card { width: 280px; right: 16px; }
  .horoscope-card .hs-sign-lyric { font-size: 0.92rem; }
  .chain-container { width: 480px; }
  .fragment-popup { width: 400px !important; }
  .chain-fixed-panel { width: 260px; }
  #fragments-container { left: 275px; bottom: 160px; }
}
@media (min-width: 769px) and (max-width: 900px) {
  #player-panel { width: 240px; }
  .horoscope-card { width: 240px; right: 6px; }
  .chain-container { width: 440px; }
  .chain-fixed-panel { width: 220px; }
  #fragments-container { left: 235px; bottom: 160px; }
}
/* Narrow desktops */
@media (min-width: 769px) and (max-width: 1400px) {
  .horoscope-card { width: 340px; }
}
@media (max-width: 400px) {
  #main-nav { top: 100px; }
  .nav-btn { padding: 6px 10px; font-size: 0.7rem; }
  #player-panel { width: 240px; }
  #horoscope-card.mobile-open { width: 200px; }
  .fragment-bubble { max-width: 150px; padding: 8px 12px; }
}

/* ============================================================
   MOBILE DOCK + SHEET SYSTEM (P0)
   ============================================================ */
.mobile-dock {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 500;
  background: linear-gradient(180deg, rgba(12,12,26,0.6) 0%, rgba(12,12,26,0.95) 100%);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(192,132,252,0.12);
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom, 0px));
  display: flex; justify-content: space-around; align-items: center;
  gap: 8px;
}
.dock-btn {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: none; border: none; cursor: pointer;
  padding: 6px 14px; border-radius: 12px;
  color: var(--silver-dim); transition: all var(--dur-base) var(--ease-out);
  min-width: 52px; -webkit-tap-highlight-color: transparent;
}
.dock-btn:active { background: rgba(192,132,252,0.15); transform: scale(0.95); }
.dock-btn .dock-icon { font-size: 1.3rem; line-height: 1; }
.dock-btn .dock-label { font-size: var(--text-micro); letter-spacing: 0.1em; }

.mobile-sheet {
  display: none; position: fixed; inset: 0; z-index: 600;
  background: rgba(0,0,0,0.5); opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.mobile-sheet.open { display: flex; flex-direction: column; justify-content: flex-end; opacity: 1; }
.sheet-handle {
  width: 36px; height: 4px; border-radius: 2px;
  background: rgba(255,255,255,0.25); margin: 10px auto;
}
.sheet-body {
  background: var(--card-bg);
  border-radius: 20px 20px 0 0; max-height: 70vh; overflow-y: auto;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom, 0px));
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(192,132,252,0.15);
  border-bottom: none; box-shadow: 0 -10px 60px rgba(0,0,0,0.6);
  animation: sheetSlideUp var(--dur-slow) var(--ease-out);
}
@keyframes sheetSlideUp {
  from { transform: translateY(100%); } to { transform: translateY(0); }
}
.sheet-body::-webkit-scrollbar { width: 3px; }
.sheet-body::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.2); border-radius: 2px; }

/* Sheet content mirror */
#fortune-sheet .hs-header { border-bottom: 1px solid rgba(251,191,36,0.12); }
#fortune-sheet .hs-body { padding: 0 20px; }
#fortune-sheet .hs-actions { padding: 0 20px 20px; }
#fortune-sheet .hs-sign { margin: 12px 0; }

@media (min-width: 769px) {
  .mobile-dock, .mobile-sheet { display: none !important; }
}

/* ============================================================
   ACCESSIBILITY + INTERACTION STANDARDS (P1+P2)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--purple-bright);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

button, .nav-btn, .chain-nav-btn, .chain-submit-btn, .submit-btn, .hs-btn {
  transition: all var(--dur-fast) var(--ease-out);
}
button:active, .nav-btn:active, .chain-nav-btn:active, .chain-submit-btn:active,
.submit-btn:active, .hs-btn:active, .dock-btn:active, .fp-like-btn:active {
  transform: scale(0.97) !important;
  filter: brightness(0.9);
}

.fragment-bubble:active {
  transform: scale(1.05) !important;
  box-shadow: 0 0 50px currentColor !important;
  animation-play-state: paused;
}
.fragment-bubble::after {
  content: ''; position: absolute; inset: -4px; border-radius: 54px;
  background: radial-gradient(circle, currentColor 0%, transparent 70%);
  opacity: 0; transition: opacity var(--dur-fast);
}
.fragment-bubble:active::after { opacity: 0.2; }

@keyframes cardSlideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
.chain-card { animation: cardSlideIn var(--dur-slow) var(--ease-out); }
.chain-fixed-panel .chain-card { animation: cardSlideIn var(--dur-slow) var(--ease-out); }

/* ============================================================
   CHAIN PANEL MOBILE SHEET OVERRIDE
   ============================================================ */
@media (max-width: 768px) {
  .chain-fixed-panel { display: none !important; }
}

/* ============================================================
   CROSS-BROWSER — Firefox/Safari fallbacks
   ============================================================ */
@supports not (backdrop-filter: blur(1px)) {
  .submit-card, .player-dot, #player-panel, .fragment-bubble,
  #horoscope-card, .cta-float, .fragment-popup, .about-card, .easter-content {
    background: rgba(12, 12, 26, 0.94) !important;
  }
  #player-panel::before, .fragment-popup::before, .submit-card::before,
  .horoscope-card::before, .about-card::before { display: none; }
}

/* ============================================================
   Chain System — 词链接龙
   ============================================================ */
#section-chain { top: 170px !important; bottom: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: center; padding: 20px 0 60px; }

.chain-container {
  width: 560px; max-width: 94vw; max-height: 62vh;
  display: flex; flex-direction: column;
  background: var(--card-bg);
  border: 2px solid transparent; border-radius: var(--card-radius);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--card-shadow);
  overflow: visible; position: relative;
}
.chain-container::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--purple-mid), var(--cyan-bright), var(--purple-neon), var(--pink-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; padding: 3px;
}

/* Chain container — collapse to floating dot */
.chain-container.collapsed {
  position: fixed !important; bottom: 30px; right: 30px;
  top: auto !important; left: auto !important;
  width: 48px !important; height: 48px !important;
  min-width: 48px !important; max-width: 48px !important;
  max-height: 48px !important;
  border-radius: 50% !important; padding: 0 !important;
  overflow: hidden !important;
  cursor: pointer; z-index: 400;
  display: flex !important; flex-direction: row !important;
  align-items: center; justify-content: center;
  border: 2px solid var(--purple-neon) !important;
  background: var(--card-bg) !important;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 0 30px rgba(192,132,252,0.5), 0 0 60px rgba(139,92,246,0.3), 0 10px 40px rgba(0,0,0,0.5);
  transition: all 0.4s cubic-bezier(0.16,1,0.3,1);
}
.chain-container.collapsed::before { display: none; }
.chain-container.collapsed > * { display: none !important; }
.chain-container.collapsed::after {
  content: '🔗'; font-size: 1.6rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  position: static; width: auto; height: auto;
}

/* ============================================================
   Chain collapse dot — standalone floating div, zero conflicts
   ============================================================ */
.chain-dot {
  position: fixed; bottom: 30px; right: 30px; z-index: 1000;
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; line-height: 1; cursor: pointer;
  border: 2px solid var(--purple-neon);
  background: rgba(25,25,50,0.9);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 0 30px rgba(192,132,252,0.5), 0 0 60px rgba(139,92,246,0.3), 0 10px 40px rgba(0,0,0,0.5);
  transition: transform 0.2s, box-shadow 0.2s;
  user-select: none;
}
.chain-dot:hover { transform: scale(1.1); box-shadow: 0 0 40px rgba(192,132,252,0.7), 0 0 80px rgba(139,92,246,0.5); }
.chain-dot.hidden { display: none; }

.chain-header {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 20px 24px 10px; flex-shrink: 0;
}
.chain-title {
  font-family: var(--font-display); font-size: 1rem; font-weight: 700;
  background: linear-gradient(90deg, var(--purple-bright), var(--cyan-bright));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  letter-spacing: 0.15em;
}
.chain-nav-btn {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%; width: 34px; height: 34px; color: var(--silver-dim);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; transition: all 0.2s;
}
.chain-nav-btn:hover { background: rgba(192,132,252,0.2); color: #fff; border-color: var(--purple-bright); }

/* Chain close button */
#chain-close {
  width: 32px; height: 32px; min-width: 32px; min-height: 32px;
  max-width: 32px; max-height: 32px;
  margin-left: auto; padding: 0; cursor: pointer; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; border: 1.5px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.12); color: #e0e0f0;
  font-size: 15px; line-height: 1; box-sizing: border-box;
  transition: all 0.2s;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
#chain-close:hover { background: rgba(239,68,68,0.25); border-color: #ef4444; color: #fff; }

.chain-stats-bar {
  display: flex; gap: 0; padding: 14px 20px; flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  align-items: center; justify-content: center;
}
.chain-strip { display: flex; gap: 0; align-items: center; width: 100%; justify-content: space-between; }
.chain-strip > span:first-child { 
  font-size: 0.72rem; color: var(--silver-dim); 
  display: flex; gap: 14px; align-items: center;
}
.chain-strip-stat { 
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; background: rgba(255,255,255,0.03);
  border-radius: 8px; font-size: 0.7rem;
}
.chain-stats-link { color: var(--gold); cursor: pointer; text-decoration: none; font-weight: 600; padding: 3px 10px; background: rgba(251,191,36,0.08); border-radius: 10px; border: 1px solid rgba(251,191,36,0.15); transition: all 0.2s; white-space: nowrap; }
.chain-stats-link:hover { background: rgba(251,191,36,0.18); color: var(--gold-bright); border-color: var(--gold); }

/* Links wrapper */
.chain-links-wrap {
  flex: 1; overflow-y: auto; padding: 16px 24px 8px;
  scroll-behavior: smooth;
}
.chain-links-wrap::-webkit-scrollbar { width: 3px; }
.chain-links-wrap::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.2); border-radius: 2px; }

/* Empty state */
.chain-empty { text-align: center; padding: 40px 20px; color: var(--silver-dim); font-size: 0.9rem; }

/* Chain card */
.chain-card {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 18px; border-radius: 16px; margin-bottom: 4px;
  transition: all 0.3s ease; position: relative;
}
.chain-system { background: rgba(192,132,252,0.04); border-left: 3px solid rgba(192,132,252,0.2); }
.chain-human {
  background: linear-gradient(135deg, rgba(192,132,252,0.1), rgba(34,211,238,0.06));
  border-left: 3px solid var(--purple-neon);
  box-shadow: 0 0 16px rgba(192,132,252,0.1);
}
.chain-latest-human {
  animation: chain-pulse 2s ease-in-out infinite;
  box-shadow: 0 0 28px rgba(192,132,252,0.25), 0 0 10px rgba(34,211,238,0.1);
}
@keyframes chain-pulse {
  0%, 100% { box-shadow: 0 0 16px rgba(192,132,252,0.18); }
  50% { box-shadow: 0 0 40px rgba(192,132,252,0.35), 0 0 12px rgba(34,211,238,0.15); }
}

.chain-card-badge {
  font-size: 1.2rem; flex-shrink: 0; width: 28px; text-align: center;
  line-height: 1.2;
}
.chain-system .chain-card-badge { opacity: 0.55; }
.chain-card-body { flex: 1; min-width: 0; }
.chain-card-lyric {
  font-size: 0.95rem; color: var(--silver); line-height: 1.7; margin-bottom: 4px;
  word-break: break-all; font-weight: 500;
}
.chain-system .chain-card-lyric { color: rgba(240,240,245,0.75); font-size: 0.85rem; }
.chain-card-meta {
  display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 0.7rem; color: var(--silver-dim);
}
.chain-human .chain-card-meta { color: rgba(192,132,252,0.7); }

/* Connector */
.chain-connector {
  display: flex; align-items: center; padding: 0 18px 0 32px; margin-bottom: 2px;
  height: 36px;
}
.chain-connector-line {
  flex: 1; height: 100%;
  border-left: 2px dashed rgba(192,132,252,0.2);
  position: relative;
}
.chain-connector-char {
  font-size: 0.7rem; color: var(--purple-bright); margin-left: 8px;
  background: rgba(192,132,252,0.12); padding: 3px 10px; border-radius: 10px;
  font-weight: 700; white-space: nowrap;
}

/* Input row */
.chain-input-row {
  padding: 16px 24px 20px; flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.2));
}
.chain-gameplay-hint {
  font-size: 0.72rem; color: var(--silver-dim); margin-bottom: 10px;
  line-height: 1.6; letter-spacing: 0.04em;
}
.chain-gameplay-hint .hint-em {
  color: var(--gold); font-weight: 700; font-size: 0.85rem;
}
.chain-char-display {
  display: flex; align-items: center; margin-bottom: 10px; font-size: 0.85rem; color: var(--silver-dim);
}
.chain-char-hint {
  font-size: 2.2rem; font-weight: 900; line-height: 1;
  background: linear-gradient(135deg, var(--gold), var(--purple-bright), var(--cyan-bright));
  background-size: 200% 200%; animation: gradient-shift 2s ease-in-out infinite;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 10px rgba(251,191,36,0.4));
  margin: 0 6px;
}
.chain-input-wrap { display: flex; gap: 8px; }
.chain-song-select {
  padding: 12px 10px; border-radius: 12px; max-width: 170px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
  color: var(--silver); font-size: 0.8rem; font-family: var(--font-main);
  cursor: pointer; transition: border-color 0.3s; appearance: none;
  -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%23c084fc'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center; padding-right: 28px;
}
.chain-song-select:focus { outline: none; border-color: var(--purple-neon); box-shadow: 0 0 16px rgba(192,132,252,0.15); }
.chain-song-select option {
  background: #1a1a32; color: var(--silver); padding: 10px 14px;
  font-size: 0.82rem; line-height: 1.8;
}
/* Scrollbar for select dropdown — Webkit */
.chain-song-select::-webkit-scrollbar { width: 4px; }
.chain-song-select::-webkit-scrollbar-track { background: rgba(255,255,255,0.03); border-radius: 2px; }
.chain-song-select::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.3); border-radius: 2px; }
.chain-song-select::-webkit-scrollbar-thumb:hover { background: rgba(192,132,252,0.5); }
/* Firefox scrollbar */
.chain-song-select { scrollbar-width: thin; scrollbar-color: rgba(192,132,252,0.3) rgba(255,255,255,0.03); }
#chain-input {
  flex: 1; padding: 12px 16px; border-radius: 12px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
  color: var(--silver); font-size: 0.9rem; font-family: var(--font-main);
  transition: border-color 0.3s;
}
#chain-input:focus { outline: none; border-color: var(--purple-neon); box-shadow: 0 0 20px rgba(192,132,252,0.15); }
#chain-input::placeholder { color: var(--silver-dim); opacity: 0.4; }
.chain-submit-btn {
  padding: 12px 24px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(192,132,252,0.15), rgba(34,211,238,0.08));
  border: 1px solid rgba(192,132,252,0.3); color: var(--purple-bright);
  font-weight: 700; font-size: 0.85rem; cursor: pointer;
  letter-spacing: 0.1em; transition: all 0.25s; white-space: nowrap;
}
.chain-submit-btn:hover {
  background: linear-gradient(135deg, rgba(192,132,252,0.25), rgba(34,211,238,0.15));
  border-color: var(--purple-neon); box-shadow: 0 0 24px rgba(192,132,252,0.3);
  transform: translateY(-1px);
}
.chain-submit-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.chain-feedback { font-size: 0.7rem; margin-top: 6px; min-height: 18px; transition: all 0.3s; }
.chain-feedback.success { color: var(--cyan-bright); }
.chain-feedback.warn { color: var(--gold); }
.chain-feedback.error { color: var(--red-neon); }

.chain-history-btn {
  background: rgba(192,132,252,0.08); border: 1px solid rgba(192,132,252,0.2);
  border-radius: 10px; padding: 6px 14px; color: var(--purple-bright);
  font-size: 0.72rem; font-weight: 600; cursor: pointer; transition: all 0.2s;
}
.chain-history-btn:hover { background: rgba(192,132,252,0.18); border-color: var(--purple-bright); color: var(--purple-neon); }

/* Overlay inside chain panel */
.chain-pn-overlay {
  position: absolute; inset: 0; z-index: 10;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  display: flex; flex-direction: column;
}
.chain-pn-overlay.hidden { display: none; }
.chain-pn-ov-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid rgba(192,132,252,0.1);
  flex-shrink: 0;
}
.chain-pn-ov-header span { font-size: 0.85rem; color: var(--purple-bright); font-weight: 600; }
.chain-pn-ov-close {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  color: var(--silver-dim); cursor: pointer; display: flex;
  align-items: center; justify-content: center; font-size: 0.85rem;
  transition: all 0.2s;
}
.chain-pn-ov-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
.chain-pn-ov-body {
  flex: 1; overflow-y: auto; padding: 12px 16px; font-size: 0.75rem;
}
.chain-pn-ov-body::-webkit-scrollbar { width: 3px; }
.chain-pn-ov-body::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.15); border-radius: 2px; }
/* Overlay content rows */
.chain-lb-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 0.72rem; }
.chain-lb-rank { color: var(--purple-neon); font-weight: 700; width: 18px; text-align: center; flex-shrink: 0; }
.chain-lb-name { flex: 1; color: var(--silver); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chain-lb-count { color: var(--silver-dim); font-size: 0.65rem; flex-shrink: 0; }
.chain-lb-empty { font-size: 0.7rem; color: var(--silver-dim); padding: 16px 0; text-align: center; }
.chain-sb-hist-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,0.03);
  cursor: pointer; font-size: 0.7rem; color: var(--silver-dim);
}
.chain-sb-hist-item:hover { color: var(--purple-bright); }

/* Fixed chain panel — left side on void */
.chain-fixed-panel {
  position: fixed; left: 12px; top: 160px; z-index: 45;
  width: 320px; max-height: calc(100vh - 220px);
  background: var(--card-bg); border-radius: var(--card-radius);
  border: 2px solid transparent;
  backdrop-filter: blur(28px); -webkit-backdrop-filter: blur(28px);
  box-shadow: 0 0 80px rgba(192,132,252,0.15), 0 0 40px rgba(34,211,238,0.08), 0 20px 60px rgba(0,0,0,0.5);
  display: flex; flex-direction: column; overflow: visible;
}
.chain-fixed-panel::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--purple-mid), var(--cyan-bright), var(--purple-neon), var(--pink-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude; -webkit-mask-composite: xor; padding: 3px;
}
.chain-fixed-panel.hidden { display: none; }
.chain-fixed-panel.collapsed .chain-links-wrap,
.chain-fixed-panel.collapsed .chain-stats-bar,
.chain-fixed-panel.collapsed .chain-input-row { display: none; }
.chain-pn-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; flex-shrink: 0;
  border-bottom: 1px solid rgba(192,132,252,0.1);
  background: rgba(192,132,252,0.03);
}
.chain-pn-header .chain-title {
  font-size: 0.85rem; font-weight: 700; color: var(--purple-bright); margin-right: auto; letter-spacing: 0.08em;
}
.chain-pn-header .chain-strip-stat {
  font-size: 0.62rem; color: var(--silver-dim); white-space: nowrap;
  padding: 2px 8px; background: rgba(255,255,255,0.04); border-radius: 10px;
}
.chain-sprint-btn {
  padding: 4px 10px; background: linear-gradient(135deg, rgba(34,211,238,0.2), rgba(34,211,238,0.08));
  border: 1px solid rgba(34,211,238,0.3); border-radius: 8px;
  color: var(--cyan-neon); font-size: 0.75rem; cursor: pointer; font-weight: 600;
  transition: all 0.2s;
}
.chain-sprint-btn:hover { background: rgba(34,211,238,0.35); box-shadow: 0 0 16px rgba(34,211,238,0.25); }
.chain-history-btn {
  padding: 4px 8px; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08); border-radius: 8px;
  color: var(--silver-dim); font-size: 0.7rem; cursor: pointer;
  transition: all 0.2s;
}
.chain-history-btn:hover { color: #fff; background: rgba(255,255,255,0.1); }
.chain-pn-close {
  width: 24px; height: 24px; border-radius: 50%;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  color: var(--silver-dim); cursor: pointer; font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: all 0.2s;
}
.chain-pn-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
/* Collapsed: just icon */
.chain-fixed-panel.collapsed { max-height: 40px; overflow: hidden; }
.chain-fixed-panel.collapsed .chain-links-wrap,
.chain-fixed-panel.collapsed .chain-stats-bar,
.chain-fixed-panel.collapsed .chain-input-row { display: none; }
.chain-fixed-panel.collapsed .chain-pn-close { transform: rotate(0deg); }
.chain-pn-scroll { flex: 1; overflow-y: auto; padding: 8px 14px; min-height: 80px; }
.chain-pn-scroll::-webkit-scrollbar { width: 3px; }
.chain-pn-scroll::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.2); border-radius: 2px; }
.chain-pn-input { padding: 10px 14px 14px; border-top: 1px solid rgba(192,132,252,0.1); flex-shrink: 0; }
/* Chain cards — enhanced */
.chain-fixed-panel .chain-card {
  padding: 10px 14px; border-radius: 12px; margin-bottom: 2px;
  background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.04);
}
.chain-fixed-panel .chain-human {
  background: rgba(192,132,252,0.06); border-color: rgba(192,132,252,0.15);
}
.chain-fixed-panel .chain-latest-human {
  box-shadow: 0 0 20px rgba(192,132,252,0.2); border-color: rgba(192,132,252,0.3);
}
.chain-fixed-panel .chain-card-lyric { font-size: 0.82rem; color: var(--silver); line-height: 1.6; }
.chain-fixed-panel .chain-system .chain-card-lyric { font-size: 0.74rem; color: var(--silver-dim); }
.chain-fixed-panel .chain-card-meta { font-size: 0.62rem; gap: 8px; margin-top: 4px; color: var(--silver-dim); }
.chain-fixed-panel .chain-card-badge { font-size: 1rem; width: 22px; }
.chain-fixed-panel .chain-connector { padding: 2px 14px 2px 26px; height: 26px; }
.chain-fixed-panel .chain-connector-char {
  font-size: 0.62rem; padding: 2px 8px; background: rgba(192,132,252,0.12);
  border: 1px solid rgba(192,132,252,0.2); border-radius: 8px; color: var(--purple-bright);
}
.chain-fixed-panel .chain-stats-bar {
  padding: 4px 14px; border-bottom: 1px solid rgba(192,132,252,0.06);
  display: flex; gap: 4px; flex-wrap: wrap; align-items: center;
}
.chain-fixed-panel .chain-strip-stat { font-size: 0.6rem; padding: 2px 6px; background: rgba(255,255,255,0.03); border-radius: 4px; color: var(--silver-dim); }
.chain-fixed-panel .chain-strip-stat { font-size: 0.62rem; padding: 2px 8px; }
/* Input area */
.chain-pn-input input {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px; padding: 7px 10px;
  color: var(--silver); font-size: 0.74rem;
  transition: border-color 0.2s;
}
.chain-pn-input input:focus { outline: none; border-color: var(--purple-bright); box-shadow: 0 0 10px rgba(192,132,252,0.15); }
.chain-pn-input .chain-submit-btn {
  padding: 7px 16px; background: linear-gradient(135deg, rgba(192,132,252,0.25), rgba(34,211,238,0.15));
  border: 1px solid rgba(192,132,252,0.35); border-radius: 8px;
  color: var(--purple-bright); font-size: 0.75rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
.chain-pn-input .chain-submit-btn:hover {
  background: rgba(192,132,252,0.35); border-color: var(--purple-neon);
  box-shadow: 0 0 16px rgba(192,132,252,0.25);
}

/* Mobile */
@media (max-width: 768px) {
  .chain-container { width: 96vw; max-height: 58vh; border-radius: 20px; }
  .chain-container::before { display: none; }
  .chain-card { padding: 10px 14px; }
  .chain-card-lyric { font-size: 0.85rem; }
  .chain-system .chain-card-lyric { font-size: 0.78rem; }
  .chain-input-row { padding: 12px 16px 16px; }
  .chain-char-hint { font-size: 1.8rem; }
  #section-chain { top: 155px !important; padding-top: 10px; }
  .chain-strip { gap: 8px; font-size: 0.68rem; }
  #fragments-container { left: 0; bottom: 160px; }
}


/* ============================================================
   NEW: Achievement Toast
   ============================================================ */
.achievement-toast {
  position: fixed; top: 30px; left: 50%; transform: translateX(-50%); z-index: 2020;
  background: var(--card-bg);
  border: 2px solid var(--gold); border-radius: var(--card-radius);
  padding: 18px 32px; display: flex; align-items: center; gap: 16px;
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 0 80px rgba(251,191,36,0.4), 0 20px 60px rgba(0,0,0,0.6);
  opacity: 0; transform: translateX(-50%) translateY(-30px);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.achievement-toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); animation: ach-glow 2s ease-in-out infinite; }
.achievement-toast.hidden { opacity: 0; transform: translateX(-50%) translateY(-30px); pointer-events: none; }
@keyframes ach-glow {
  0%, 100% { box-shadow: 0 0 80px rgba(251,191,36,0.4), 0 20px 60px rgba(0,0,0,0.6); }
  50% { box-shadow: 0 0 120px rgba(251,191,36,0.7), 0 0 40px rgba(192,132,252,0.3), 0 20px 60px rgba(0,0,0,0.6); }
}
.ach-icon { font-size: 2.8rem; filter: drop-shadow(0 0 14px var(--gold)); }
.ach-title { font-size: 0.95rem; color: var(--gold); font-weight: 700; letter-spacing: 0.15em; }
.ach-desc { font-size: 0.78rem; color: var(--silver-dim); margin-top: 2px; }

/* ============================================================
   NEW: Fragment Detail Popup
   ============================================================ */
.fragment-popup {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2000;
  background: var(--card-bg);
  border: 2px solid transparent; border-radius: var(--card-radius);
  padding: 30px; width: 440px; max-width: 92vw; max-height: 85vh;
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--card-shadow);
  transition: opacity 0.3s, transform 0.3s;
}
.fragment-popup::before {
  content: ''; position: absolute; inset: -3px; z-index: -1; border-radius: 27px;
  background: linear-gradient(135deg, var(--purple-bright), var(--pink-neon), var(--cyan-bright), var(--purple-neon));
  background-size: 300% 300%; animation: panel-border-glow 4s ease-in-out infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; padding: 3px;
}
.fragment-popup.hidden { display: none; }
.fp-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); color: var(--silver-dim); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 1rem; transition: all 0.2s; }
.fp-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
.fp-content { font-size: 1.2rem; color: #fff; text-align: center; padding: 10px 0 20px; line-height: 1.8; text-shadow: 0 0 10px currentColor; word-break: break-all; }
.fp-meta { font-size: 0.75rem; color: var(--silver-dim); text-align: center; margin-bottom: 16px; display: flex; justify-content: center; gap: 16px; }
.fp-actions { display: flex; justify-content: center; margin-bottom: 20px; }
.fp-like-btn { background: rgba(244,114,182,0.15); border: 1px solid rgba(244,114,182,0.3); border-radius: 50px; padding: 8px 20px; color: var(--pink-neon); cursor: pointer; font-size: 0.9rem; transition: all 0.2s; }
.fp-like-btn:hover { background: rgba(244,114,182,0.25); box-shadow: 0 0 20px rgba(244,114,182,0.3); }
.fp-like-btn.liked { background: rgba(244,114,182,0.3); border-color: var(--pink-neon); }
.fp-share-btn { background: rgba(34,211,238,0.12); border: 1px solid rgba(34,211,238,0.25); border-radius: 50px; padding: 8px 20px; color: var(--cyan-neon); cursor: pointer; font-size: 0.9rem; transition: all 0.2s; }
.fp-share-btn:hover { background: rgba(34,211,238,0.25); box-shadow: 0 0 20px rgba(34,211,238,0.3); }
.fp-share-btn.copied { background: rgba(34,211,238,0.3); }
.fp-view-count { display: inline-flex; align-items: center; gap: 4px; padding: 8px 16px; color: var(--silver-dim); font-size: 0.85rem; font-weight: 400; }
.fp-comments-section { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 16px; }
.fp-comments-title { font-size: 0.8rem; color: var(--silver-dim); margin-bottom: 12px; }
.fp-comments-list { max-height: 200px; overflow-y: auto; margin-bottom: 12px; }
.fp-comments-list::-webkit-scrollbar { width: 3px; } .fp-comments-list::-webkit-scrollbar-thumb { background: rgba(192,132,252,0.2); border-radius: 2px; }
.fp-comment-item { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.04); font-size: 0.8rem; }
.fp-comment-nick { color: var(--purple-bright); font-weight: 600; margin-right: 6px; }
.fp-comment-text { color: var(--silver); }
.fp-comment-time { font-size: 0.65rem; color: var(--silver-dim); margin-top: 2px; }
.fp-comment-form { display: flex; gap: 6px; }
.fp-comment-form input { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; padding: 8px 10px; color: var(--silver); font-size: 0.75rem; font-family: var(--font-main); }
.fp-comment-form input:first-child { width: 70px; flex-shrink: 0; }
.fp-comment-form input:nth-child(2) { flex: 1; }
#fp-comment-submit { background: linear-gradient(135deg, rgba(139,92,246,0.3), rgba(76,29,149,0.2)); border: 1px solid var(--purple-bright); border-radius: 8px; color: var(--purple-bright); padding: 8px 14px; cursor: pointer; font-size: 0.75rem; transition: all 0.2s; flex-shrink: 0; }
#fp-comment-submit:hover { background: rgba(139,92,246,0.5); }

/* ============================================================
   Lucky Sign Card — matches player panel design language
   ============================================================ */
.horoscope-card {
  position: fixed; top: 90px; right: 20px; z-index: 185;
  width: 340px; max-width: calc(100vw - 40px);
  border: 3px solid transparent; border-radius: var(--card-radius); padding: 14px 0 0;
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 0 40px rgba(251,191,36,0.15), 0 0 80px rgba(249,115,22,0.08), 0 20px 60px rgba(0,0,0,0.6);
  transition: opacity 0.5s, transform 0.5s;
  background-origin: padding-box, border-box;
  background-clip: padding-box, border-box;
  background-image: var(--card-bg), linear-gradient(135deg, var(--gold), var(--gold-bright), var(--purple-bright), var(--pink-neon), var(--gold));
  background-size: auto, 300% 300%;
  animation: none, panel-border-glow 4s ease-in-out infinite;
}
.horoscope-card::before { display: none; }
.horoscope-card.fade { opacity: 0; transform: scale(0.95); }

.hs-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 20px 14px; border-bottom: 1px solid rgba(251,191,36,0.1);
}
.hs-close {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  color: var(--silver-dim); cursor: pointer; font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: all 0.2s;
}
.hs-close:hover { color: #fff; border-color: var(--red-neon); background: rgba(239,68,68,0.2); }
/* Collapsed: just icon */
.horoscope-card.collapsed { width: 44px; height: 44px; border-radius: 50%; padding: 0; overflow: hidden; min-height: auto; max-height: 44px; }
.horoscope-card.collapsed .hs-body,
.horoscope-card.collapsed .hs-label,
.horoscope-card.collapsed .hs-date,
.horoscope-card.collapsed .hs-close { display: none; }
.horoscope-card.collapsed .hs-header { border: none; padding: 0; width: 100%; height: 100%; justify-content: center; cursor: pointer; }
.horoscope-card.collapsed .hs-header::after { content: '🎋'; font-size: 1.4rem; }
.hs-label {
  font-family: var(--font-display);
  font-size: 0.9rem; font-weight: 700;
  background: linear-gradient(90deg, var(--gold), var(--purple-bright));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  letter-spacing: 0.12em;
}
.hs-date { font-size: 0.65rem; color: var(--silver-dim); letter-spacing: 0.05em; }

.hs-body { padding: 0 20px; }

.hs-lucky-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 10px 0 8px; }
.hs-lucky-item {
  text-align: center; background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05); border-radius: 10px;
  padding: 8px 4px; transition: all 0.3s ease;
}
.hs-lucky-item:hover { background: rgba(251,191,36,0.04); border-color: rgba(251,191,36,0.15); }
.hs-lucky-label {
  display: block; font-size: 0.58rem; color: var(--silver-dim);
  margin-bottom: 3px; text-transform: uppercase; letter-spacing: 0.1em;
}
.hs-lucky-val {
  font-size: 0.9rem; font-weight: 700;
  background: linear-gradient(135deg, var(--gold), #fbbf24);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 8px rgba(251,191,36,0.25));
}
.hs-stars {
  text-align: center; font-size: 0.78rem; padding: 0 14px 8px;
  letter-spacing: 0.15em; color: var(--gold);
}

/* Sign box — 签文展示区 */
.hs-sign {
  position: relative;
  border-radius: 16px; padding: 24px 18px 18px; margin: 4px 0 12px;
  background: linear-gradient(160deg, rgba(251,191,36,0.04), rgba(192,132,252,0.03), rgba(251,191,36,0.02));
  border: 1px solid rgba(251,191,36,0.12); overflow: hidden;
}
.hs-sign::before {
  content: ''; position: absolute; top: 0; left: 20px; right: 20px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(251,191,36,0.5), rgba(192,132,252,0.4), transparent);
}
.hs-sign::after {
  content: ''; position: absolute; bottom: 0; left: 20px; right: 20px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(251,191,36,0.3), rgba(192,132,252,0.3), transparent);
}
.hs-sign-quote {
  font-size: 1.6rem; color: rgba(251,191,36,0.25); line-height: 1; margin-bottom: 6px;
  font-family: Georgia, serif;
}
.hs-sign-quote-end {
  font-size: 1.6rem; color: rgba(251,191,36,0.25); line-height: 1; text-align: right; margin-top: 4px;
  font-family: Georgia, serif;
}
.hs-sign-lyric {
  font-size: 0.95rem; color: #fff; text-align: center; line-height: 1.9; font-weight: 600;
  text-shadow: 0 0 20px rgba(251,191,36,0.12), 0 0 4px rgba(192,132,252,0.08);
  padding: 0 8px;
}
.hs-sign-song {
  font-size: 0.7rem; color: rgba(251,191,36,0.5); text-align: center; margin-top: 8px;
  font-style: italic; letter-spacing: 0.06em;
}

.hs-actions { padding: 0 20px 16px; }

/* ── In-card checkin (enhanced) ── */
.hs-checkin-wrap {
  margin: 10px 0 4px; padding: 8px 0 2px;
  border-top: 1px solid rgba(251,191,36,0.1);
}
.hs-checkin-track {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  margin-bottom: 6px;
}
.hs-checkin-streak { font-size: 0.65rem; color: var(--silver-dim); white-space: nowrap; }
.hs-checkin-dots { display: flex; gap: 2px; }
.hs-checkin-dots span {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.3s;
}
.hs-checkin-dots span.f {
  background: linear-gradient(135deg, var(--gold), #f59e0b);
  border-color: var(--gold-bright);
  box-shadow: 0 0 4px rgba(251,191,36,0.4);
}
.hs-checkin-btn {
  width: 100%; height: 32px;
  display: flex; align-items: center; justify-content: center; gap: 4px;
  background: linear-gradient(135deg, rgba(251,191,36,0.18), rgba(249,115,22,0.12));
  border: 1px solid rgba(251,191,36,0.3); border-radius: 8px;
  color: var(--gold); font-size: 0.78rem; font-weight: 600;
  cursor: pointer; transition: all 0.25s;
  position: relative; overflow: hidden;
}
.hs-checkin-btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(251,191,36,0.08), transparent 60%);
  opacity: 0; transition: opacity 0.25s;
}
.hs-checkin-btn:hover::after { opacity: 1; }
.hs-checkin-btn:hover {
  border-color: var(--gold-bright);
  box-shadow: 0 0 20px rgba(251,191,36,0.25), inset 0 0 20px rgba(251,191,36,0.06);
  transform: translateY(-1px);
}
.hs-checkin-btn:active { transform: scale(0.97); }
.hs-checkin-btn.loading { opacity: 0.7; pointer-events: none; }
.hs-checkin-btn.done {
  background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.06);
  color: var(--silver-dim); cursor: default;
}
.hs-checkin-btn.done:hover { box-shadow: none; transform: none; }
.hs-checkin-btn.done::after { display: none; }
.hcb-icon { font-size: 1rem; }
.hcb-text { letter-spacing: 0.03em; }
.hcb-spin { animation: hcbSpin 0.8s linear infinite; }
@keyframes hcbSpin { to { transform: rotate(360deg); } }

/* 小错误提示 */
.hs-mini-tip {
  text-align: center; font-size: 0.65rem; color: var(--red-neon);
  margin-top: 4px; animation: tipFade 2.5s ease-out forwards;
}
@keyframes tipFade {
  0% { opacity: 1; }
  70% { opacity: 1; }
  100% { opacity: 0; }
}

/* ── Compact actions row ── */
.hs-actions { display: flex; gap: 6px; justify-content: center; padding: 6px 0 0; }
.hs-btn { padding: 4px 10px; font-size: 0.7rem; background: rgba(255,255,255,0.04); border: 0.5px solid rgba(255,255,255,0.08); border-radius: 6px; color: var(--silver-dim); cursor: pointer; transition: all 0.2s; }
.hs-btn:hover { color: var(--silver); border-color: rgba(255,255,255,0.2); }
.hs-share-btn { background: rgba(192,132,252,0.15); border-color: rgba(192,132,252,0.3); color: var(--purple-bright); width: 100%; font-size: 0.72rem; padding: 7px 0; border-radius: 8px; }
.hs-share-btn:hover { background: rgba(192,132,252,0.25); border-color: var(--purple-bright); color: var(--purple-neon); }

#post-enter-elements { pointer-events: none; }
#post-enter-elements > * { pointer-events: auto; }

/* Toast */
.checkin-toast {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(0.8); z-index: 9999;
  background: var(--card-bg); border: 2px solid var(--purple-bright); border-radius: var(--card-radius);
  padding: 28px 36px; text-align: center; opacity: 0; transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px);
  box-shadow: 0 0 60px rgba(192,132,252,0.3);
}
.checkin-toast.show { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.ct-quote { font-size: 1.3rem; font-weight: 700; color: var(--silver); margin-bottom: 6px; }
.ct-song { font-size: 0.8rem; color: var(--silver-dim); }
.ct-reward { font-size: 0.9rem; color: var(--gold); margin-top: 10px; font-weight: 700; }

/* ============================================================
   V2: 猜谜组件
   ============================================================ */
.qz-lyric {
  font-size: 1.05rem; color: var(--silver); margin-bottom: 12px; line-height: 1.6;
  font-style: italic; padding: 8px 12px; background: rgba(255,255,255,0.03); border-radius: 8px;
}
.qz-options { display: flex; flex-direction: column; gap: 6px; }
.qz-opt {
  padding: 10px 14px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px; color: var(--silver); font-size: 0.85rem; cursor: pointer;
  transition: all 0.2s; text-align: left;
}
.qz-opt:hover:not(:disabled) { background: rgba(192,132,252,0.1); border-color: var(--purple-bright); }
.qz-opt:disabled { opacity: 0.5; cursor: default; }
.qz-done { text-align: center; padding: 12px; color: var(--silver-dim); font-size: 0.85rem; }
.qz-feedback { margin-top: 10px; padding: 10px; border-radius: 8px; font-size: 0.85rem; text-align: center; }
.qz-feedback.correct { background: rgba(34,211,238,0.1); color: var(--cyan-neon); }
.qz-feedback.wrong { background: rgba(239,68,68,0.1); color: var(--red-neon); }
.qz-share-btn {
  margin-top: 8px; padding: 6px 16px; background: rgba(192,132,252,0.15);
  border: 1px solid rgba(192,132,252,0.3); border-radius: 8px; color: var(--purple-bright);
  font-size: 0.8rem; cursor: pointer;
}

/* ============================================================
   V2: 词链限时挑战
   ============================================================ */
#sprint-overlay {
  position: fixed; inset: 0; z-index: 9000; background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s; backdrop-filter: blur(8px);
}
#sprint-overlay.show { opacity: 1; }
.sprint-card {
  background: var(--card-bg); border: 2px solid var(--purple-bright); border-radius: var(--card-radius);
  padding: 24px; width: 420px; max-width: 94vw; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 0 80px rgba(192,132,252,0.3);
}
.sprint-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.sprint-header span:first-child { font-size: 1.1rem; font-weight: 900; color: var(--cyan-neon); }
.sprint-score { font-size: 0.9rem; color: var(--silver); }
.sprint-score b { color: var(--gold); font-size: 1.2rem; }
.sprint-timer-bar { height: 4px; background: rgba(255,255,255,0.08); border-radius: 2px; margin-bottom: 6px; overflow: hidden; }
.sprint-timer-fill { height: 100%; width: 100%; background: var(--cyan-neon); transition: width 1s linear; }
.sprint-time-row { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--silver-dim); margin-bottom: 12px; }
.sprint-prev { background: rgba(255,255,255,0.04); border-radius: 8px; padding: 12px; margin-bottom: 12px; }
.sprint-lyric-text { font-size: 1rem; color: var(--silver); margin-bottom: 2px; }
.sprint-lyric-song { font-size: 0.75rem; color: var(--silver-dim); }
.sprint-input-row { display: flex; gap: 8px; margin-bottom: 10px; }
#sprint-input { flex: 1; padding: 10px 12px; background: #151530; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px; color: var(--silver); font-size: 0.9rem; }
.sprint-song-select { width: 100px; padding: 10px 8px; background: #151530; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px; color: var(--silver); font-size: 0.8rem; -webkit-appearance: none; appearance: none; }
.sprint-song-select option { background: #151530; color: #f0f0f5; }
.sprint-submit { width: 100%; padding: 12px; background: linear-gradient(135deg, rgba(34,211,238,0.2), rgba(192,132,252,0.2)); border: 1px solid var(--cyan-neon); border-radius: 10px; color: var(--silver); font-size: 0.95rem; cursor: pointer; letter-spacing: 0.1em; transition: all 0.3s; }
.sprint-submit:hover { background: linear-gradient(135deg, rgba(34,211,238,0.35), rgba(192,132,252,0.3)); }
.sprint-fb { display: none; padding: 8px; border-radius: 6px; font-size: 0.8rem; text-align: center; margin-top: 6px; }
.sprint-fb.ok { background: rgba(34,211,238,0.1); color: var(--cyan-neon); }
.sprint-fb.fail { background: rgba(239,68,68,0.1); color: var(--red-neon); }
.sprint-close { width: 100%; margin-top: 12px; padding: 8px; background: transparent; border: none; color: var(--silver-dim); font-size: 0.8rem; cursor: pointer; }
.sprint-result { text-align: center; }
.sprint-result h3 { font-size: 1.3rem; color: var(--cyan-neon); margin-bottom: 16px; }
.sprint-final-score { font-size: 4rem; font-weight: 900; color: var(--silver); margin-bottom: 10px; }
.sprint-final-stats { display: flex; justify-content: center; gap: 24px; color: var(--silver-dim); font-size: 0.85rem; margin-bottom: 20px; }
.sprint-final-actions { display: flex; flex-direction: column; gap: 8px; }
.sprint-final-actions button { padding: 10px; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px; background: rgba(255,255,255,0.04); color: var(--silver); font-size: 0.9rem; cursor: pointer; transition: all 0.2s; }
.sprint-final-actions button:hover { background: rgba(192,132,252,0.15); border-color: var(--purple-bright); }

/* Chain panel sprint button */
.chain-sprint-btn {
  margin-left: 8px; padding: 4px 10px; background: rgba(34,211,238,0.15);
  border: 1px solid rgba(34,211,238,0.3); border-radius: 6px;
  color: var(--cyan-neon); font-size: 0.7rem; cursor: pointer; transition: all 0.2s;
}
.chain-sprint-btn:hover { background: rgba(34,211,238,0.25); }

/* ============================================================
   V2: 深夜模式 (21:30-22:00 渐变入场, 05:30-06:00 渐隐)
   ============================================================ */
/* Dimming overlay — opacity driven by --night-opacity via JS */
body::before {
  content: ''; position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: rgba(2,2,30,0.45);
  opacity: var(--night-opacity, 0); transition: opacity 1s linear;
}
/* Player dot: cyan pulsing glow */
body.night #music-player .player-dot {
  background: linear-gradient(135deg, rgba(34,211,238,0.35), rgba(103,232,249,0.15));
  border-color: var(--cyan-bright);
  box-shadow: 0 0 35px rgba(34,211,238,0.6), inset 0 0 25px rgba(34,211,238,0.2);
}
body.night #music-player .player-dot .dot-inner { color: var(--cyan-bright); }
/* Nav buttons: cooler accent */
body.night .nav-btn.active, body.night .nav-btn:hover {
  background: rgba(34,211,238,0.18); border-color: var(--cyan-bright);
  box-shadow: 0 0 20px rgba(34,211,238,0.3);
}
/* Particles & nebula dimmed */
body.night #particle-canvas { opacity: 0.45; }
body.night #section-void::before { opacity: 0.4; }
/* Waveform warmer */
body.night #waveform-canvas { opacity: 0.2; }
body.night .wl-current { filter: drop-shadow(0 0 10px rgba(103,232,249,0.3)); }
/* Fragment bubbles slightly muted */
body.night .fragment-bubble { filter: brightness(0.85); }
/* Fortune card more subtle */
body.night .horoscope-card { box-shadow: 0 0 25px rgba(251,191,36,0.08); }

/* ============================================================
   分享系统 — 纯文本弹窗 + 查看页
   ============================================================ */

/* 分享弹窗：创建分享时 */
.share-dialog-overlay {
  position: fixed; inset: 0; z-index: 9500; background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity 0.3s;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.share-dialog-overlay.show { opacity: 1; visibility: visible; }

.share-dialog-card {
  background: var(--card-bg); border: 2px solid var(--purple-bright);
  border-radius: var(--card-radius); padding: 20px 18px 16px;
  max-width: 420px; width: 92vw; text-align: center;
  box-shadow: 0 0 80px rgba(192,132,252,0.3); position: relative;
}
.share-dialog-close {
  position: absolute; top: 8px; right: 12px; background: none; border: none;
  color: var(--silver-dim); font-size: 1.1rem; cursor: pointer; z-index: 1;
}
.share-dialog-close:hover { color: #fff; }
.share-dialog-title { font-size: 1.05rem; color: var(--purple-bright); margin-bottom: 12px; font-weight: 700; }
.share-dialog-body { margin-bottom: 14px; }

/* 碎片分享内容 */
.sd-fragment {}
.sd-fragment-lyric { font-size: 1.15rem; color: #fff; line-height: 1.8; padding: 10px 0; }
.sd-fragment-song { font-size: 0.8rem; color: var(--silver-dim); margin-top: 4px; }
.sd-quote { color: var(--purple-bright); font-size: 1.3rem; margin: 0 4px; }

/* 幸运签分享内容 */
.sd-fortune {}
.sd-fortune-meta { display: flex; justify-content: center; gap: 12px; font-size: 0.78rem; color: var(--silver-dim); margin-bottom: 8px; flex-wrap: wrap; }
.sd-fortune-stars { font-size: 1.2rem; color: var(--gold); margin: 6px 0; letter-spacing: 2px; }
.sd-fortune-lyric { font-size: 1.05rem; color: #fff; line-height: 1.7; padding: 8px 0; }
.sd-fortune-song { font-size: 0.78rem; color: var(--silver-dim); margin-top: 4px; }

/* 链接行 */
.share-dialog-link-row { display: flex; align-items: center; justify-content: center; gap: 8px; margin-bottom: 12px; }
.share-dialog-link-label { font-size: 0.75rem; color: var(--silver-dim); }
.share-dialog-link {
  background: rgba(192,132,252,0.1); border: 1px solid rgba(192,132,252,0.25);
  border-radius: 6px; padding: 4px 10px; font-size: 0.8rem; color: var(--cyan-neon);
  font-family: monospace; cursor: default; user-select: all;
}
.share-dialog-copy-btn {
  width: 100%; padding: 10px; border-radius: 8px; font-size: 0.9rem; cursor: pointer;
  border: 1px solid var(--purple-bright); background: rgba(192,132,252,0.12);
  color: var(--purple-bright); transition: all 0.2s;
}
.share-dialog-copy-btn:hover { background: rgba(192,132,252,0.25); box-shadow: 0 0 20px rgba(192,132,252,0.3); }
.share-dialog-copy-btn.copied { border-color: var(--cyan-neon); color: var(--cyan-neon); background: rgba(34,211,238,0.15); }

/* 分享查看页：从链接访问时 */
.share-view-overlay {
  position: fixed; inset: 0; z-index: 9500; background: rgba(0,0,0,0.92);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.share-view-overlay.hidden { display: none; }
.share-view-card {
  background: var(--card-bg); border: 2px solid var(--purple-bright);
  border-radius: var(--card-radius); padding: 24px 20px 16px;
  max-width: 420px; width: 92vw; text-align: center;
  box-shadow: 0 0 100px rgba(192,132,252,0.4); position: relative;
}
.share-view-close {
  position: absolute; top: 8px; right: 12px; background: none; border: none;
  color: var(--silver-dim); font-size: 1.1rem; cursor: pointer; z-index: 1;
}
.share-view-close:hover { color: #fff; }
.share-view-body { margin-bottom: 16px; }
.share-view-btns { display: flex; justify-content: center; }
.share-view-btns button {
  padding: 10px 24px; border-radius: 8px; font-size: 0.9rem; cursor: pointer;
  border: 1px solid var(--purple-bright); background: rgba(192,132,252,0.12);
  color: var(--purple-bright); transition: all 0.2s;
}
.share-view-btns button:hover { background: rgba(192,132,252,0.25); box-shadow: 0 0 20px rgba(192,132,252,0.3); }

/* 查看页内容样式 */
.sv-header { font-size: 1.05rem; color: var(--purple-bright); margin-bottom: 12px; font-weight: 700; }
.sv-meta { display: flex; justify-content: center; gap: 12px; font-size: 0.8rem; color: var(--silver-dim); margin-bottom: 8px; flex-wrap: wrap; }
.sv-stars { font-size: 1.3rem; color: var(--gold); margin: 6px 0; letter-spacing: 3px; }
.sv-lyric { font-size: 1.15rem; color: #fff; line-height: 1.8; padding: 10px 0; }
.sv-song { font-size: 0.8rem; color: var(--silver-dim); margin-top: 4px; }
.sv-footer { font-size: 0.7rem; color: var(--silver-dim); margin-top: 14px; opacity: 0.6; }



@media (max-width: 768px) {
  .hs-checkin-wrap { margin: 6px 0 2px; padding: 4px 0 1px; }
  .hs-checkin-dots span { width: 6px; height: 6px; }
  .hs-checkin-btn { height: 30px; font-size: 0.75rem; border-radius: 7px; }
  .hs-checkin-streak { font-size: 0.6rem; }
  .hs-actions { gap: 4px; }
  .hs-btn { font-size: 0.65rem; padding: 3px 8px; }
  .qz-opt { font-size: 0.8rem; padding: 8px 10px; }
  .sprint-card { width: 100vw; max-width: 100vw; border-radius: 0; min-height: 100vh; }
  .sprint-input-row { flex-direction: column; }
  .sprint-song-select { width: 100%; }
  .checkin-toast { width: 85vw; padding: 20px 24px; }
}