:root {
  color-scheme: dark;
  --bg: #101211;
  --panel: #171918;
  --paper: #efe9dc;
  --paper-2: #ded7c9;
  --ink: #f5f0e6;
  --muted: #aaa193;
  --line: rgba(245, 240, 230, 0.16);
  --accent: #b8ff2c;
  --danger: #d46a6a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
}
button, input, textarea, select {
  font: inherit;
}
button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  padding: 10px 14px;
  cursor: pointer;
}
button.primary { background: #0f1110; color: var(--accent); border-color: #30352a; font-weight: 700; }
button.danger { color: var(--danger); }
button:disabled { opacity: .45; cursor: not-allowed; }
input, textarea, select {
  width: 100%;
  border: 1px solid #cfc7b8;
  background: #fffdf6;
  color: #191919;
  padding: 11px 12px;
}
textarea { min-height: 116px; resize: vertical; }
a { color: inherit; }

.hero {
  min-height: 56vh;
  display: grid;
  align-items: end;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(16,18,17,.1), rgba(16,18,17,.95)),
    var(--hero-image, radial-gradient(circle at 55% 35%, #6f7f7c, #101211 60%));
  background-size: cover;
  background-position: center;
}
.hero-inner { max-width: 1080px; margin: 0 auto; width: 100%; }
.brand { font-size: clamp(48px, 8vw, 108px); line-height: 1; margin: 0 0 14px; letter-spacing: 0; }
.subtitle { color: var(--muted); font-size: 18px; }
.hero-text { max-width: 680px; font-size: 20px; line-height: 1.7; }
.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: linear-gradient(180deg, rgba(16,18,17,.72), rgba(16,18,17,0));
}
.topnav a { text-decoration: none; color: var(--ink); margin-left: 18px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 48px 24px 128px; }
.section-title { display: flex; align-items: end; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 24px; }
.section-title h2 { font-size: 34px; margin: 0; }
.muted { color: var(--muted); }
.album-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.album-card, .song-card, .comment {
  border: 1px solid var(--line);
  background: var(--panel);
}
.album-card { cursor: pointer; }
.album-card img, .song-art {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: #222;
}
.album-body, .song-body { padding: 16px; }
.album-body h3, .song-body h3 { margin: 0 0 8px; font-size: 24px; }
.song-list { display: grid; gap: 12px; }
.song-card {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px;
}
.song-card .song-art { width: 92px; }
.lyrics-box {
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  line-height: 1.9;
  border: 1px solid var(--line);
  padding: 16px;
  color: #d9d1c4;
}
.player {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: rgba(16,18,17,.96);
  border-top: 1px solid var(--line);
  padding: 12px 18px;
}
.player-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.progress { display: grid; grid-template-columns: 48px 1fr 48px; gap: 10px; align-items: center; }
.progress input { padding: 0; }
.controls { display: flex; gap: 8px; align-items: center; }
.comments { display: grid; gap: 10px; margin-top: 18px; }
.comment { padding: 14px; }
.comment.reply { margin-left: 28px; }
.comment-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.admin-shell {
  background: var(--paper);
  color: #151515;
  min-height: 100vh;
}
.admin-shell .topnav {
  position: static;
  background: transparent;
  border-bottom: 1px solid #c8c1b5;
}
.admin-shell .topnav a { color: #151515; }
.admin-wrap { max-width: 1280px; margin: 0 auto; padding: 36px 24px 100px; }
.admin-title { font-size: 56px; margin: 0 0 26px; letter-spacing: 0; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.tabs button { background: transparent; color: #151515; border-color: #c8c1b5; }
.tabs button.active { background: #151515; color: var(--accent); }
.admin-grid { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 28px; align-items: start; }
.admin-panel {
  border: 1px solid #c8c1b5;
  background: #e7e1d6;
  padding: 18px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 7px; color: #5c554d; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.item-editor {
  border: 1px solid #c8c1b5;
  padding: 16px;
  margin-bottom: 14px;
  background: #f5f0e6;
}
.preview {
  position: sticky;
  top: 20px;
  background: #111;
  color: var(--ink);
  border: 1px solid #303030;
  padding: 14px;
}
.preview img { width: 100%; aspect-ratio: 1; object-fit: cover; background: #222; }
.notice {
  padding: 12px 14px;
  background: #ddd6ca;
  border: 1px solid #c8c1b5;
  margin-bottom: 18px;
}

@media (max-width: 820px) {
  .hero { padding: 20px; min-height: 64vh; }
  .song-card { grid-template-columns: 72px 1fr; }
  .song-card .song-art { width: 72px; }
  .song-card button { grid-column: 1 / -1; }
  .player-inner, .split, .admin-grid, .form-grid { grid-template-columns: 1fr; }
  .preview { position: static; }
}