:root {
  --bg: #ffffff;
  --soft: #f6f9fc;
  --ink: #152238;
  --muted: #687482;
  --line: #e3e8ef;
  --accent: #2463a6;
  --accent-dark: #17477e;
  --accent-soft: #eaf2fb;
  --danger: #bd4d4d;
  --danger-soft: #fff7f7;
  --shadow: 0 10px 28px rgba(21, 33, 30, .045);
  color: var(--ink);
  font-family: Inter, "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body { background: var(--bg); margin: 0; min-width: 320px; }
button, input, textarea, select { color: inherit; font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(36, 99, 166, .22); outline-offset: 2px; }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.page { min-height: 100vh; }
.topbar { align-items: center; background: #fff; border-bottom: 1px solid var(--line); display: flex; gap: 16px; justify-content: space-between; padding: 12px 22px; position: relative; }
.brand { align-items: center; display: inline-flex; gap: 10px; min-width: max-content; }
.brand-mark { align-items: center; background: var(--ink); border-radius: 9px; color: #fff; display: inline-flex; font-size: 17px; height: 32px; justify-content: center; width: 32px; }
.brand-copy { display: grid; line-height: 1.12; }
.brand-copy strong { font-weight: 500; letter-spacing: .04em; }
.brand-copy span { color: var(--muted); font-size: 11px; margin-top: 3px; }
.userbar { align-items: center; display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.chip { align-items: center; background: var(--soft); border: 1px solid #dce4ee; border-radius: 999px; display: inline-flex; gap: 6px; padding: 5px 9px; white-space: nowrap; }
.chip strong { color: var(--accent-dark); font-weight: 500; }
.chip-button { cursor: pointer; }
.chip-button:hover { border-color: #b6cbe2; color: var(--accent-dark); }
.btn { align-items: center; border: 1px solid transparent; border-radius: 10px; display: inline-flex; gap: 7px; justify-content: center; min-height: 36px; padding: 8px 13px; transition: background .15s ease, border-color .15s ease, transform .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); box-shadow: 0 6px 14px rgba(36, 99, 166, .18); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: #fff; border-color: var(--line); }
.btn-secondary:hover { border-color: #c3d2e3; }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-danger { background: var(--danger-soft); border-color: #f0d2d2; color: var(--danger); }
.btn-small { background: #fff; border-color: var(--line); min-height: 31px; padding: 5px 9px; }
.btn:disabled { cursor: not-allowed; opacity: .55; transform: none; }
.main { margin: 0 auto; max-width: 1120px; padding: 28px 22px 44px; }
.hero { margin-bottom: 21px; max-width: 760px; }
.eyebrow { color: var(--accent-dark); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 500; letter-spacing: -.03em; line-height: 1.15; }
h2 { font-size: 18px; font-weight: 500; }
h3 { font-size: 16px; font-weight: 500; }
.hero h1 { margin: 7px 0 8px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p { color: var(--muted); max-width: 700px; }
.section { margin-top: 23px; }
.section-title { align-items: center; display: flex; gap: 9px; margin-bottom: 10px; }
.section-title::before { color: var(--accent); content: "#"; font-weight: 500; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: none; }
.input-panel { padding: 18px; }
.notice { align-items: flex-start; background: #f7f9fc; border: 1px solid var(--line); border-radius: 11px; color: var(--muted); display: flex; gap: 8px; margin-bottom: 12px; padding: 9px 11px; }
.field-label { display: block; font-size: 13px; margin-bottom: 6px; }
.input, .textarea, .select { background: #fff; border: 1px solid #ccd7e4; border-radius: 11px; outline: none; padding: 10px 12px; width: 100%; }
.input:focus, .textarea:focus, .select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(36, 99, 166, .12); }
.textarea { min-height: 72px; resize: vertical; }
.actions { align-items: center; display: flex; flex-wrap: wrap; gap: 9px; margin-top: 12px; }
.charge-note { color: var(--muted); font-size: 12px; margin-left: auto; }
.result-panel { overflow: hidden; }
.ready-line { align-items: center; background: var(--accent-soft); border-bottom: 1px solid #c8d9eb; display: flex; gap: 9px; padding: 10px 16px; }
.ready-line span { color: var(--muted); font-size: 12px; }
.song-body { background: linear-gradient(135deg, #fbfdff, #f1f6fc); border: 1px solid #e1eaf4; border-radius: 14px; display: grid; gap: 18px; grid-template-columns: 128px 1fr; margin: 12px; padding: 14px; }
.cover { aspect-ratio: 1; background: linear-gradient(145deg, #152238, #285b8c 54%, #a8c7e5); border-radius: 16px; box-shadow: 0 10px 20px rgba(21, 34, 56, .13); color: #fff; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; padding: 13px; position: relative; }
.cover img { height: 100%; inset: 0; object-fit: cover; position: absolute; width: 100%; }
.cover.has-image { background: #eef3f8; padding: 0; }
.cover.has-image small, .cover.has-image strong { display: none; }
.cover small { opacity: .72; }
.cover strong { font-size: 21px; font-weight: 500; line-height: 1.08; }
.song-copy { display: flex; flex-direction: column; min-width: 0; }
.song-copy > span, .song-copy > p { color: var(--muted); }
.song-copy h2 { font-size: clamp(22px, 3vw, 29px); margin: 3px 0 5px; }
.artist-line { align-items: center; display: flex; gap: 7px; }
.artist-mark { align-items: center; background: var(--accent); border-radius: 50%; color: #fff; display: inline-flex; height: 20px; justify-content: center; width: 20px; }
.track-id { align-items: center; background: var(--accent-soft); border-radius: 7px; color: var(--accent-dark); display: inline-flex; font-family: ui-monospace, monospace; font-size: 11px; gap: 6px; margin-top: 9px; padding: 5px 7px; width: max-content; }
.track-id button { background: transparent; border: 0; color: var(--accent-dark); line-height: 1; padding: 0; }
.player { align-items: center; background: #fff; border: 1px solid #e3ebf4; border-radius: 13px; display: grid; gap: 10px; grid-template-columns: auto 1fr auto; margin-top: 11px; padding: 9px; }
.player audio { display: none; }
.player-play { align-items: center; background: var(--accent); border: 0; border-radius: 50%; color: #fff; display: inline-flex; height: 36px; justify-content: center; width: 36px; }
.player-play::before { border-bottom: 7px solid transparent; border-left: 11px solid #fff; border-top: 7px solid transparent; content: ""; display: block; margin-left: 2px; }
.player-play.is-playing::before { background: linear-gradient(to right, #fff 0 4px, transparent 4px 8px, #fff 8px 12px); border: 0; height: 14px; margin-left: 0; width: 12px; }
.player-track { min-width: 0; }
.player-seek { appearance: none; background: linear-gradient(to right, var(--accent) 0 var(--player-progress, 0%), #cbdced var(--player-progress, 0%) 100%); border-radius: 999px; cursor: pointer; display: block; height: 4px; margin: 0; padding: 0; width: 100%; }
.player-seek::-webkit-slider-thumb { appearance: none; background: #fff; border: 2px solid var(--accent); border-radius: 50%; box-shadow: 0 1px 4px rgba(15, 39, 68, .25); height: 13px; width: 13px; }
.player-seek::-moz-range-thumb { background: #fff; border: 2px solid var(--accent); border-radius: 50%; box-shadow: 0 1px 4px rgba(15, 39, 68, .25); height: 10px; width: 10px; }
.time { color: var(--muted); display: flex; font-size: 11px; gap: 10px; justify-content: space-between; margin-top: 6px; }
.time span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.time span:last-child { flex: 0 0 auto; font-variant-numeric: tabular-nums; }
.quality-chip { background: #fff; border: 1px solid #c8d9eb; border-radius: 999px; color: var(--accent-dark); font-size: 11px; padding: 4px 7px; }
.result-meta-grid { display: grid; gap: 8px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 12px 12px; }
.meta-item { border: 1px solid var(--line); border-radius: 12px; padding: 10px; }
.result-meta-grid .meta-item { background: #fbfdff; border-color: #cfdeee; }
.meta-item span { color: var(--muted); display: block; font-size: 11px; margin-bottom: 2px; }
.meta-item strong { font-weight: 500; }
.quality-list { overflow: hidden; }
.processing-line { align-items: center; background: var(--accent-soft); border-color: #c8d9eb; display: flex; gap: 10px; margin-bottom: 9px; padding: 10px 14px; }
.processing-icon { align-items: center; background: var(--accent); border-radius: 8px; color: #fff; display: inline-flex; flex: 0 0 28px; height: 28px; justify-content: center; width: 28px; }
.processing-line div { display: grid; line-height: 1.35; }
.processing-line strong { font-size: 13px; font-weight: 500; }
.processing-line span:last-child { color: var(--muted); font-size: 11px; }
.processing-line.is-unavailable { background: #f7f9fc; border-color: var(--line); }
.processing-line.is-unavailable .processing-icon { background: var(--muted); }
.quality-row { align-items: center; display: grid; gap: 14px; grid-template-columns: minmax(130px, 1fr) minmax(100px, .6fr) auto; padding: 11px 16px; }
.quality-row + .quality-row { border-top: 1px solid var(--line); }
.quality-name { align-items: center; display: flex; gap: 9px; }
.quality-name b { background: var(--accent-soft); border-radius: 7px; color: var(--accent-dark); font-size: 11px; font-weight: 500; padding: 4px 7px; white-space: nowrap; }
.quality-size { color: var(--muted); font-size: 12px; }
.lyrics-panel { padding: 15px; }
.lyrics-toolbar { align-items: center; display: flex; justify-content: space-between; margin-bottom: 10px; }
.lyric-modes { display: flex; gap: 4px; }
.lyric-modes button { background: #fff; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); cursor: pointer; padding: 5px 9px; }
.lyric-modes button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.lyrics-content { background: var(--soft); border-radius: 11px; color: #465363; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; line-height: 1.85; margin: 0; max-height: 270px; overflow: auto; padding: 13px; white-space: pre-wrap; }
.toast { background: var(--ink); border-radius: 10px; bottom: 18px; color: #fff; left: 50%; opacity: 0; padding: 8px 12px; pointer-events: none; position: fixed; transform: translate(-50%, 8px); transition: opacity .15s ease, transform .15s ease; z-index: 10; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* login */
.user-login-page { background-color: #d9d0c6; background-image: var(--user-login-background, url('/assets/admin-wallpaper.jpg')); background-attachment: fixed; background-position: center; background-repeat: no-repeat; background-size: cover; display: grid; min-height: 100vh; padding: clamp(16px, 4vw, 48px); place-items: center; }
.user-login-page .page { align-items: center; display: flex; justify-content: center; min-height: auto; width: 100%; }
.login-shell { background: rgba(255, 255, 255, .94); border: 1px solid rgba(205, 216, 229, .82); border-radius: 18px; box-shadow: 0 26px 70px rgba(15, 39, 68, .14); display: grid; grid-template-columns: 1fr 1fr; margin: 0; min-height: min(650px, calc(100vh - 96px)); overflow: hidden; width: min(1080px, 100%); }
.login-art { align-items: flex-start; background: rgba(247, 249, 252, .94); border-right: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; padding: 32px; }
.login-art h1 { font-size: clamp(30px, 4vw, 44px); margin-top: auto; max-width: 440px; }
.login-art h1 em { color: var(--accent); font-style: normal; }
.login-art p { color: var(--muted); margin-top: 14px; max-width: 420px; }
.login-footnote { color: var(--muted); font-size: 12px; margin-top: 30px; }
.login-form-wrap { align-items: center; display: flex; justify-content: center; padding: 28px; }
.login-panel { border: 1px solid var(--line); border-radius: 16px; max-width: 380px; padding: 24px; width: 100%; }
.login-panel > p { color: var(--muted); margin: 6px 0 20px; }
.login-panel .btn-primary { margin-top: 16px; width: 100%; }
.bind-note { background: var(--soft); border-radius: 10px; color: var(--muted); font-size: 12px; margin-top: 14px; padding: 9px 10px; }
.form-error { color: var(--danger); font-size: 12px; min-height: 19px; padding-top: 5px; }
.login-admin-link { color: var(--muted); display: block; font-size: 12px; margin-top: 18px; text-align: center; text-decoration: underline; text-underline-offset: 3px; }

/* admin */
.admin-main { margin: 0 auto; max-width: 1220px; padding: 22px 22px 44px; }
.admin-heading { align-items: flex-end; display: flex; justify-content: space-between; margin-bottom: 18px; }
.admin-heading p { color: var(--muted); margin-top: 3px; }
.stats { display: grid; gap: 9px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 16px; }
.stat { border: 1px solid var(--line); border-radius: 14px; padding: 13px; }
.stat span { color: var(--muted); display: block; font-size: 12px; }
.stat strong { display: block; font-size: 23px; font-weight: 500; margin-top: 2px; }
.admin-panel { padding: 15px; }
.create-row { align-items: end; display: grid; gap: 10px; grid-template-columns: 1.5fr .8fr auto; margin-top: 10px; }
.table-wrap { margin-top: 17px; overflow-x: auto; }
.user-table { border-collapse: collapse; min-width: 800px; table-layout: fixed; width: 100%; }
.user-table th { color: var(--muted); font-size: 11px; font-weight: 500; padding: 8px 8px; text-align: left; }
.user-table th:nth-child(1) { width: 13%; }.user-table th:nth-child(2) { width: 11%; }.user-table th:nth-child(3) { width: 18%; }.user-table th:nth-child(4) { width: 17%; }.user-table th:nth-child(5) { width: 16%; }.user-table th:nth-child(6) { width: 25%; }
.user-table td { border-top: 1px solid var(--line); padding: 10px 8px; vertical-align: middle; }
.user-table td strong { font-weight: 500; }
.status-dot { background: var(--accent); border-radius: 50%; display: inline-block; height: 6px; margin-right: 6px; width: 6px; }
.table-actions { display: flex; flex-wrap: wrap; gap: 5px; }
.point-controls { align-items: center; display: flex; gap: 5px; }
.point-controls button { background: #fff; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); height: 27px; width: 27px; }
.point-value { min-width: 28px; text-align: center; }
.location-cell { display: grid; gap: 1px; min-width: 170px; }
.location-cell strong { font-size: 12px; font-weight: 500; line-height: 1.35; }
.location-cell span { color: var(--muted); font-size: 11px; }
.admin-login { margin: 14vh auto 0; max-width: 390px; padding: 24px; }
.admin-login .btn-primary { width: 100%; }
.admin-page.admin-login-view { background: #d9d0c6 url('/assets/admin-wallpaper.jpg') center / cover fixed no-repeat; }
.admin-page.admin-login-view .topbar { background: rgba(255, 255, 255, .86); backdrop-filter: blur(10px); }
.admin-page.admin-login-view .admin-main { align-items: center; display: flex; justify-content: center; min-height: calc(100vh - 57px); padding: 32px 16px; }
.admin-page.admin-login-view .admin-login { background: rgba(255, 255, 255, .89); border-color: rgba(255, 255, 255, .48); box-shadow: 0 30px 72px rgba(10, 24, 43, .30), 0 10px 26px rgba(10, 24, 43, .18); backdrop-filter: blur(10px); margin: 0; max-width: 390px; width: 100%; }
.password-popover { padding: 16px; position: absolute; right: 22px; top: 64px; width: min(360px, calc(100vw - 32px)); z-index: 5; box-shadow: 0 18px 40px rgba(21, 33, 30, .12); }
.popover-heading { align-items: center; display: flex; justify-content: space-between; margin-bottom: 4px; }
.popover-close { background: transparent; border: 0; color: var(--muted); font-size: 22px; line-height: 1; padding: 2px 5px; }
.popover-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 12px; }

@media (max-width: 760px) {
  .topbar { align-items: flex-start; flex-direction: column; padding: 11px 16px; }
  .userbar { justify-content: flex-start; }
  .password-popover { left: 16px; right: 16px; top: 96px; width: auto; }
  .main, .admin-main { padding: 23px 16px 38px; }
  .song-body { grid-template-columns: 112px 1fr; padding: 12px; }
  .cover { border-radius: 13px; padding: 10px; }.cover strong { font-size: 17px; }
  .player { grid-column: 1 / -1; margin-top: 7px; }
  .user-login-page { padding: 16px; }
  .login-shell { grid-template-columns: 1fr; min-height: auto; }
  .login-art { border-bottom: 1px solid var(--line); border-right: 0; min-height: 285px; padding: 24px 18px; }
  .login-art h1 { margin-top: 48px; }
  .login-form-wrap { padding: 24px 16px 40px; }
  .create-row { grid-template-columns: 1fr; }
  .admin-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
  :root { font-size: 13px; }
  .result-meta-grid, .stats { grid-template-columns: 1fr; }
  .quality-row { grid-template-columns: 1fr auto; }
  .quality-size { grid-column: 1; grid-row: 2; }
  .quality-row .btn-small { grid-column: 2; grid-row: 1 / span 2; }
  .charge-note { margin-left: 0; width: 100%; }
  .song-body { grid-template-columns: 1fr; }.cover { max-width: 145px; }
}