:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--red:#b3261e;--red-soft:#ffffffdb;--accent-text:#b3261e;--ink:#1b2a41;--ink-soft:#46546b;--muted:#5b6778;--gold:#e8b64c;--gold-wash:#fff4d6;--gold-line:#d9a21b;--paper:#fff;--mist:#eef0f3;--line:#d5dae1;--warn-bg:#fff1d0;--warn-ink:#6b4200;--danger-bg:#fde2e1;--danger-ink:#7a0c0f;--btn-primary-bg:#1b2a41;--btn-primary-fg:#fff;--focus:#1f6feb;--shadow-bar:0 -6px 18px #1b2a4114;--shadow-note:0 8px 20px #1b2a411f;--font-sans:system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;--font-serif:"Songti SC", "STSong", "Noto Serif SC", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;--font-kai:"Kaiti SC", "STKaiti", "KaiTi", "BiauKai", "Noto Serif SC", "Noto Serif CJK SC", serif;--radius-card:16px;--radius-btn:12px;--page-max:560px;--gutter:16px}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--red:#8e1f18;--red-soft:#ffffffd6;--accent-text:#ff9a8f;--ink:#eef1f5;--ink-soft:#c5ccd6;--muted:#a9b2bf;--gold-wash:#3a3016;--gold-line:#e8b64c;--paper:#1b2029;--mist:#12161c;--line:#353e4b;--warn-bg:#3b2e10;--warn-ink:#ffd98a;--danger-bg:#4a1716;--danger-ink:#ffc2bd;--btn-primary-bg:#e8b64c;--btn-primary-fg:#1b2a41;--focus:#79b8ff;--shadow-bar:0 -6px 18px #0006;--shadow-note:0 8px 20px #00000073}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;font-size:112.5%}body{background:var(--mist);min-height:100vh;color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;margin:0;line-height:1.6}img{max-width:100%;display:block}output{display:block}p,h1,h2,h3,label{text-wrap:pretty}button,input,textarea{font:inherit;color:inherit}a{color:inherit}code{overflow-wrap:anywhere;font-size:.9em}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}h1[tabindex="-1"]:focus{outline:none}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.screen{min-height:100vh;min-height:100svh}.page{max-width:calc(var(--page-max) + 2 * var(--gutter));padding:20px var(--gutter) 40px;margin:0 auto}.page--wide{max-width:calc(1100px + 2 * var(--gutter))}.section-title{margin:28px 0 12px;font-size:1.15rem;font-weight:700;line-height:1.4}.panel{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);margin-bottom:16px;padding:2px 16px 16px}.panel>.section-title{margin-top:16px}.hint{color:var(--ink-soft);margin:20px 0}.muted{color:var(--muted);font-size:.88rem}.danger{color:var(--accent-text)}.link-stack{gap:12px;margin-top:8px;display:grid}.spinner{vertical-align:-.2em;border:3px solid #ffffff59;border-top-color:#fff;border-radius:50%;width:1.1em;height:1.1em;animation:.8s linear infinite spin;display:inline-block}.spinner--ink{border-color:var(--line);border-top-color:var(--accent-text)}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.btn{border-radius:var(--radius-btn);text-align:center;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;border:2px solid #0000;flex-direction:column;justify-content:center;align-items:center;min-height:56px;padding:8px 16px;font-size:1.05rem;font-weight:700;line-height:1.25;text-decoration:none;transition:background-color .15s,border-color .15s;display:inline-flex}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn__es{opacity:.85;font-size:.72rem;font-weight:500}.btn--block{width:100%}.btn--primary{background:var(--btn-primary-bg);color:var(--btn-primary-fg)}.btn--secondary{border-color:var(--ink-soft);background:var(--paper);color:var(--ink)}.btn--quiet{border-color:var(--line);color:var(--ink);background:0 0}.btn--chosen{background:var(--gold);color:#1b2a41}.btn--on-red{min-height:64px;color:var(--red);background:#fff;flex-flow:wrap;gap:4px 12px;font-size:1.3rem}.btn--on-red-outline{color:#fff;background:0 0;border-color:#fffc;min-height:56px;font-size:1.1rem}.btn__count{font-variant-numeric:tabular-nums}.btn--nav{flex:1;min-height:60px}.cover{padding:8px var(--gutter) 46px;background:var(--red);color:#fff}.cover__inner{max-width:var(--page-max);margin:0 auto}.cover__bar{justify-content:space-between;align-items:center;gap:12px;min-height:52px;display:flex}.cover__home{color:#fff;align-items:center;min-height:48px;padding-right:12px;font-weight:600;text-decoration:none;display:inline-flex}.cover__count{font-variant-numeric:tabular-nums;letter-spacing:.02em;margin:0;font-size:1.2rem;font-weight:800}.cover__badge{background:var(--gold);color:#1b2a41;border-radius:999px;margin:20px 0 0;padding:5px 14px;font-size:.9rem;font-weight:700;display:inline-block}.cover__title{font-family:var(--font-serif);letter-spacing:.03em;overflow-wrap:anywhere;margin:14px 0 8px;font-size:2.1rem;font-weight:700;line-height:1.25}.cover__artist{flex-wrap:wrap;align-items:center;gap:8px 12px;margin:0;font-size:1.25rem;font-weight:600;display:flex}.cover__chip{border:1.5px solid #ffffffa6;border-radius:999px;padding:1px 10px;font-size:.85rem;font-weight:600}.cover__label{color:var(--red-soft);margin:16px 0 2px;font-size:.95rem}.cover__handwriting{font-family:var(--font-kai);overflow-wrap:anywhere;margin:0;font-size:2rem;font-weight:700;line-height:1.35}.cover__question{color:var(--red-soft);margin:10px 0 0;font-size:1.1rem}.progress{align-items:center;gap:12px;display:flex}.progress__track{background:var(--line);width:100%;height:10px;color:var(--accent-text);-webkit-appearance:none;appearance:none;border:0;border-radius:999px;flex:1;overflow:hidden}.progress__track::-webkit-progress-bar{background:var(--line);border-radius:999px}.progress__track::-webkit-progress-value{background:var(--accent-text);border-radius:999px;transition:width .3s}.progress__track::-moz-progress-bar{background:var(--accent-text);border-radius:999px}.progress__text{font-variant-numeric:tabular-nums;flex:none;font-size:.9rem;font-weight:700}.progress--on-red .progress__track{background:#ffffff47}.progress--on-red .progress__track::-webkit-progress-bar{background:#ffffff47}.progress--on-red .progress__track::-webkit-progress-value{background:var(--gold)}.progress--on-red .progress__track::-moz-progress-bar{background:var(--gold)}.note-card{max-width:calc(var(--page-max) + 2 * var(--gutter));padding:0 var(--gutter);margin:-30px auto 0;position:relative}.note-card__paper{border:1px solid var(--line);border-left:5px solid var(--red);background:var(--paper);box-shadow:var(--shadow-note);border-radius:12px;padding:10px 16px 12px}.note-card__label{color:var(--muted);margin:0;font-size:.85rem}.note-card__text{font-family:var(--font-kai);overflow-wrap:anywhere;margin:2px 0 0;font-size:1.4rem;line-height:1.45}.page--review{padding-top:8px}.group{margin-top:20px}.group+.group{margin-top:36px}.group__header{align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.group__letter{background:var(--ink);width:46px;height:46px;color:var(--paper);border-radius:10px;flex:none;place-items:center;font-size:1.35rem;font-weight:800;display:grid}.group__heading{min-width:0}.group__kicker{color:var(--accent-text);margin:0;font-size:.85rem;font-weight:700}.group__title{font-family:var(--font-serif);overflow-wrap:anywhere;margin:0;font-size:1.4rem;line-height:1.3}.group__artist{color:var(--ink-soft);flex-wrap:wrap;gap:2px 10px;margin:2px 0 0;display:flex}.group__year{color:var(--muted)}.group__cards{gap:16px;display:grid}.group__empty{border:2px dashed var(--line);border-radius:var(--radius-card);color:var(--ink-soft);gap:12px;padding:16px;display:grid}.group__empty p{margin:0}.card{border:2px solid var(--line);border-radius:var(--radius-card);background:var(--paper);overflow:hidden}.card--selected{border-color:var(--gold-line);background:var(--gold-wash);box-shadow:0 0 0 2px var(--gold-line)}.card__media{background:#000}.thumb{aspect-ratio:16/9;cursor:pointer;background:#20242c;border:0;width:100%;padding:0;display:block;position:relative}.thumb img{object-fit:cover;width:100%;height:100%}.thumb__play{color:#fff;background:#b3261eeb;border-radius:50%;place-items:center;width:72px;height:72px;margin:auto;display:grid;position:absolute;top:0;bottom:0;left:0;right:0;box-shadow:0 4px 14px #00000059}.player__frame{aspect-ratio:16/9;background:#000;border:0;width:100%;display:block}.player__frame iframe{border:0;width:100%;height:100%;display:block}.player__problem{background:var(--warn-bg);color:var(--warn-ink);margin:0;padding:10px 14px;font-size:.95rem;font-weight:600}.card__body{gap:6px;padding:14px 16px 16px;display:grid}.card__tags{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.card__number{font-size:1.05rem;font-weight:800}.tag{background:var(--mist);color:var(--ink-soft);border-radius:999px;padding:2px 10px;font-size:.8rem;font-weight:700}.tag--chosen{background:var(--gold);color:#1b2a41}.card__title{overflow-wrap:anywhere;-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:2px 0 0;line-height:1.45;display:-webkit-box;overflow:hidden}.card__meta{color:var(--ink-soft);margin:0;font-size:.95rem}.card__meta--soft{color:var(--muted);overflow-wrap:anywhere;font-size:.85rem}.card__row{flex-wrap:wrap;gap:10px;margin:8px 0 4px;display:flex}.card__row .btn{white-space:nowrap;flex:auto}.status-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.status-btn{border:2px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);min-height:78px;color:var(--ink);text-align:left;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;flex-direction:column;justify-content:center;align-items:flex-start;gap:2px;padding:10px 14px;display:flex}.status-btn__zh{font-size:1.1rem;font-weight:700;line-height:1.3}.status-btn__es{color:var(--muted);font-size:.75rem;line-height:1.25}.status-btn--active{border-color:var(--ink);background:var(--ink);color:var(--paper)}.status-btn--active .status-btn__es{color:inherit;opacity:.85}.search-link{margin:14px 0 0}.search-link a{color:var(--accent-text);font-weight:600}.note{gap:10px;margin-top:20px;display:grid}.note__saved{border-left:4px solid var(--gold-line);background:var(--paper);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:8px;margin:0;padding:12px 14px}.note__saved-label{color:var(--muted);font-size:.85rem;display:block}.note__prompt{font-weight:600}.note__input{border:2px solid var(--ink-soft);border-radius:var(--radius-btn);background:var(--paper);resize:vertical;width:100%;min-height:110px;padding:12px;font-size:1.05rem;line-height:1.5}.note__actions{justify-content:space-between;align-items:center;gap:12px;display:flex}.note__status{color:var(--muted);font-size:.9rem}.empty-state{border:2px dashed var(--line);border-radius:var(--radius-card);background:var(--paper);gap:14px;margin-top:24px;padding:20px;display:grid}.empty-state__text{margin:0;font-size:1.05rem}.all-done{border:2px solid var(--gold-line);border-radius:var(--radius-card);background:var(--gold-wash);margin:24px 0 0;padding:14px 16px;font-weight:700}.storage-warning{background:var(--warn-bg);color:var(--warn-ink);border-radius:10px;margin:12px 0 16px;padding:12px 14px;font-weight:600}.bottom-nav{z-index:10;padding:10px var(--gutter) calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-bar);position:sticky;bottom:0}.bottom-nav__inner{max-width:var(--page-max);align-items:center;gap:10px;margin:0 auto;display:flex}.sync-badge{background:var(--warn-bg);color:var(--warn-ink);border-radius:999px;flex:none;padding:4px 8px;font-size:.75rem;font-weight:700}.toast{right:0;bottom:calc(100px + env(safe-area-inset-bottom));z-index:20;padding:0 var(--gutter);pointer-events:none;justify-content:center;display:flex;position:fixed;left:0}.toast__bubble{background:var(--ink);max-width:520px;color:var(--paper);border-radius:999px;padding:12px 20px;font-weight:700;animation:.2s ease-out toast-in;box-shadow:0 8px 24px #00000040}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.home-cover{min-height:70vh;min-height:70svh;padding:48px var(--gutter) 40px;background:var(--red);color:#fff;align-items:flex-end;display:flex}.home-cover--short{min-height:auto;padding-top:64px}.home-cover__inner{width:100%;max-width:var(--page-max);margin:0 auto}.home-cover__mark{color:var(--gold);margin-bottom:22px}.home-cover__title{font-family:var(--font-serif);letter-spacing:.06em;margin:0;font-size:clamp(2.6rem,13vw,3.8rem);font-weight:700;line-height:1.1}.home-cover__text{color:var(--red-soft);margin:18px 0 0;font-size:1.15rem;line-height:1.75}.home-cover__actions{gap:12px;margin-top:30px;display:grid}.home-cover__loading{align-items:center;gap:10px;min-height:64px;margin:0;font-size:1.1rem;display:flex}.stats{margin:14px 0 0;padding:0;list-style:none;display:grid}.stats__item{border-bottom:1px solid var(--line);grid-template-columns:2rem 1fr auto;align-items:center;gap:8px;padding:9px 0;display:grid}.stats__item:last-child{border-bottom:0}.stats__icon{font-size:1.2rem}.stats__label{font-size:1.05rem}.stats__es{color:var(--muted);margin-left:8px;font-size:.75rem}.stats__value{font-variant-numeric:tabular-nums;font-size:1.3rem;font-weight:800}.mini-cover{padding:8px var(--gutter) 18px;background:var(--red);color:#fff}.mini-cover__inner{max-width:var(--page-max);margin:0 auto}.screen--admin .mini-cover__inner{max-width:1100px}.mini-cover__title{font-family:var(--font-serif);margin:2px 0 0;font-size:1.8rem;line-height:1.3}.segmented{border:2px solid var(--ink);border-radius:var(--radius-btn);grid-template-columns:1fr 1fr;min-width:0;margin:0 0 16px;padding:0;display:grid;overflow:hidden}.segmented button{background:var(--paper);cursor:pointer;border:0;min-height:52px;font-size:1.05rem;font-weight:700}.segmented button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.song-list{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);margin:0;padding:0;list-style:none;overflow:hidden}.song-list li+li{border-top:1px solid var(--line)}.song-list__row{min-height:64px;color:inherit;grid-template-columns:2.4rem 1fr 2rem;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;display:grid}.song-list__num{color:var(--muted);font-variant-numeric:tabular-nums;font-weight:700}.song-list__main{min-width:0;display:grid}.song-list__title{overflow-wrap:anywhere;font-size:1.05rem;font-weight:600}.song-list__artist{color:var(--ink-soft);font-size:.9rem}.song-list__status{text-align:center;font-size:1.2rem}.status-screen{min-height:100vh;min-height:100svh;padding:24px var(--gutter);text-align:center;place-content:center;justify-items:center;gap:14px;display:grid}.status-screen p{margin:0}.status-screen__mark{color:var(--accent-text)}.status-screen__title{font-family:var(--font-serif);font-size:1.8rem;font-weight:700}.admin-dl{grid-template-columns:max-content 1fr;gap:6px 16px;margin:0 0 12px;font-size:.95rem;display:grid}.admin-dl dt{color:var(--muted)}.admin-dl dd{min-width:0;margin:0}.admin-note{background:var(--mist);border-radius:8px;padding:10px 12px;font-size:.95rem}.admin-note--warn{background:var(--warn-bg);color:var(--warn-ink)}.admin-note--danger{background:var(--danger-bg);color:var(--danger-ink)}.admin-table{border-collapse:collapse;width:100%;font-size:.9rem}.admin-table th,.admin-table td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:8px 10px}.admin-table--summary{max-width:380px}.admin-table--summary td{font-variant-numeric:tabular-nums;text-align:right;font-weight:800}.table-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto}.table-scroll .admin-table{min-width:760px}.is-duplicate td{color:var(--muted)}.status-pill{background:var(--mist);white-space:nowrap;border-radius:999px;padding:2px 8px;font-size:.8rem;font-weight:700;display:inline-block}.status-pill--selected{background:var(--gold);color:#1b2a41}.checkbox{cursor:pointer;align-items:flex-start;gap:10px;margin:8px 0 14px;font-size:.95rem;display:flex}.checkbox input{width:22px;height:22px;accent-color:var(--ink);flex:none;margin:2px 0 0}.button-row{flex-wrap:wrap;gap:10px;display:flex}