:root {
  --bg: #0e0f12;
  --bg-elev: #1a1c22;
  --bg-elev-2: #23262e;
  --fg: #e6e8ee;
  --fg-muted: #8d94a3;
  --accent: #c10d3a;
  --accent-2: #ff3b5c;
  --border: #2a2e38;
  --success: #20c997;
  --error: #ff5a5a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: radial-gradient(1200px 600px at 50% -10%, #2a0d1a 0%, var(--bg) 50%);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
               'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  min-height: 100vh;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.hero { text-align: center; margin-bottom: 32px; }
.hero h1 {
  font-size: 30px; margin: 0; letter-spacing: 0.5px;
  background: linear-gradient(120deg, #fff, #ff6b85);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .subtitle { color: var(--fg-muted); margin: 8px 0 0; font-size: 14px; }

.input-bar {
  display: flex; gap: 8px;
  background: var(--bg-elev);
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.input-bar input {
  flex: 1; min-width: 0;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.input-bar input:focus { border-color: var(--accent-2); }
.input-bar select {
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  font-size: 13px;
}
.input-bar button {
  background: var(--accent);
  color: #fff; border: 0;
  padding: 0 22px;
  border-radius: 8px;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: transform .08s ease, background-color .15s ease;
}
.input-bar button:hover { background: var(--accent-2); }
.input-bar button:active { transform: scale(0.98); }
.input-bar button:disabled { opacity: 0.5; cursor: not-allowed; }

.hint {
  margin: 10px 4px 0;
  font-size: 12px;
}

.error, .loading {
  margin-top: 18px; padding: 12px 16px;
  border-radius: 10px; font-size: 14px;
}
.error { background: rgba(255, 90, 90, 0.12); color: var(--error); border: 1px solid rgba(255,90,90,0.3); }
.loading { background: rgba(255, 255, 255, 0.05); color: var(--fg-muted); border: 1px solid var(--border); text-align:center; }

.result {
  margin-top: 24px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}
.result-head {
  display: flex; gap: 16px; align-items: center;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.cover {
  width: 96px; height: 96px;
  border-radius: 10px; object-fit: cover;
  background: var(--bg-elev-2);
  flex-shrink: 0;
}
.result-meta { flex: 1; min-width: 0; }
.result-meta h2 { margin: 0 0 6px; font-size: 20px; }
.muted { color: var(--fg-muted); font-size: 13px; }
.bulk-actions {
  margin-top: 10px;
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
}
.bulk-actions label { font-size: 13px; color: var(--fg-muted); cursor: pointer; user-select: none; }
.bulk-actions button {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent-2);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px; cursor: pointer;
  margin-right: 8px;
}
.bulk-actions button + button { margin-left: 0; }
.bulk-actions button:hover { background: rgba(193, 13, 58, 0.15); }
.bulk-actions button:disabled { opacity: 0.4; cursor: not-allowed; border-color: var(--border); color: var(--fg-muted); }

.track-list { list-style: none; margin: 0; padding: 0; }
.track {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 8px;
  border-radius: 8px;
  border: 1px solid transparent;
}
.track:hover { background: var(--bg-elev-2); border-color: var(--border); }
.track input[type=checkbox] { margin: 0; flex-shrink: 0; }
.track-index { width: 28px; color: var(--fg-muted); font-size: 13px; text-align: right; flex-shrink: 0; }
.track-info { min-width: 0; }
.track-name {
  font-size: 14px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track-sub {
  font-size: 12px; color: var(--fg-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track-dl {
  background: var(--accent);
  color: #fff; border: 0;
  padding: 5px 12px; font-size: 12px;
  border-radius: 6px; cursor: pointer;
  flex-shrink: 0;
}
.track-dl:hover { background: var(--accent-2); }

.track-actions {
  display: flex; gap: 6px; flex-shrink: 0;
}
.track-btn {
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--fg);
  padding: 5px 10px; font-size: 12px;
  border-radius: 6px; cursor: pointer;
  font-family: inherit;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.track-btn:hover { border-color: var(--accent-2); color: var(--accent-2); }
.track-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.track-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.track-dl { /* 兼容旧样式（之前是单独一按钮） */
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.track-dl:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.track-play { color: var(--accent-2); }
.track-lyric { color: var(--fg-muted); }

.track-player {
  grid-column: 1 / -1;
  margin: 6px 0 2px 38px;
  background: var(--bg-elev-2);
  border-radius: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
}
.track-player audio { width: 100%; display: block; height: 38px; }
.track-player .muted { font-size: 12px; color: var(--error); }

.footer {
  margin-top: 40px; text-align: center;
  color: var(--fg-muted); font-size: 12px;
}
.footer .friend-links {
  margin: 0 0 8px;
}
.footer .friend-links a {
  color: var(--fg-muted);
  text-decoration: none;
  margin: 0 2px;
  transition: color .15s ease;
}
.footer .friend-links a:hover { color: var(--accent-2); text-decoration: underline; }
.footer .fl-label { color: var(--fg-muted); margin-right: 4px; }
.footer .fl-sep { color: var(--border); margin: 0 6px; }
.footer .copyright { margin: 0; }
.footer .stats { margin: 8px 0 0; font-size: 11px; }
.footer .fl-cta {
  display: inline-block;
  margin-left: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff !important;
  font-size: 12px;
  text-decoration: none !important;
  transition: background-color .15s ease, transform .08s ease;
}
.footer .fl-cta:hover {
  background: var(--accent-2);
  color: #fff !important;
  text-decoration: none !important;
}
.footer .fl-cta:active { transform: scale(0.97); }

@media (max-width: 640px) {
  .container { padding: 24px 12px 60px; }
  .hero h1 { font-size: 22px; }

  /* 输入栏：链接占满第一行，选择器和按钮挤第二行 */
  .input-bar {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px;
  }
  .input-bar input { flex: 1 1 100%; min-width: 0; padding: 10px 12px; font-size: 14px; }
  .input-bar select {
    flex: 1 1 35%;
    padding: 10px 8px;
    font-size: 13px;
    min-height: 38px;
  }
  /* 按钮：第二行的右侧大头，保留桌面端的醒目程度 */
  .input-bar button {
    flex: 1 1 60%;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    min-height: 38px;
  }

  .hint { font-size: 11px; margin: 8px 2px 0; }

  /* 解析结果头部：封面横排变纵排 */
  .result { padding: 14px; }
  .result-head {
    flex-direction: row; /* 移动端也保持横排，封面小一些 */
    align-items: center;
    gap: 12px;
    padding-bottom: 12px;
    margin-bottom: 12px;
  }
  .cover { width: 72px; height: 72px; max-width: 72px; }
  .result-meta h2 { font-size: 17px; }

  /* 批量操作区换行 */
  .bulk-actions {
    flex-wrap: wrap;
    gap: 6px 10px;
    margin-top: 6px;
  }
  .bulk-actions label { font-size: 12px; }
  .bulk-actions button {
    font-size: 12px;
    padding: 5px 10px;
    margin: 0;
    white-space: nowrap;
  }
  .bulk-actions button + button { margin-left: 0; }

  /* 曲目行：简化为 3 列，去掉序号，省空间的按钮 */
  .track {
    grid-template-columns: auto 1fr auto;
    gap: 8px;
    padding: 8px 6px;
  }
  .track-index { display: none; }
  .track-info { min-width: 0; }
  .track-name { font-size: 13px; }
  .track-sub { font-size: 11px; }

  /* 行内三按钮：挤在一起，更紧凑 */
  .track-actions { flex-wrap: wrap; gap: 4px; }
  .track-btn { padding: 4px 8px; font-size: 11px; }
  .track-dl { white-space: nowrap; }

  /* 行内播放器铺满 */
  .track-player { margin: 4px 0 0 0; padding: 6px 8px; }

  /* footer */
  .footer .fl-cta { font-size: 11px; padding: 3px 10px; margin-left: 4px; }
  .footer .friend-links { font-size: 11px; }
  .footer .friend-links a { margin: 0 1px; }
}

@media (max-width: 400px) {
  /* 超窄屏：连 .result-head 也变纵向 */
  .result-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .cover { width: 100%; height: auto; aspect-ratio: 1; max-width: 160px; }
  .track-actions { width: 100%; justify-content: flex-end; }
  .track-btn { flex: 1 1 auto; text-align: center; }
}