:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#24332e;background:#f6f7f3;font-synthesis:none;line-height:1.5;--green:#235b49;--muted:#738078;--border:#dde3dc}
*{box-sizing:border-box}body{margin:0}button,select{font:inherit;color:inherit}button,select,a{-webkit-tap-highlight-color:transparent}button,select{min-height:44px}button{cursor:pointer;border:1px solid var(--border);border-radius:11px;background:white;padding:9px 14px;font-size:14px;font-weight:550}button:hover:not(:disabled){border-color:#9eb6a8}button:disabled,select:disabled{cursor:default;opacity:.42}button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #a2c7b6;outline-offset:3px}select{border:0;background:transparent;max-width:100%;cursor:pointer}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}
.app-shell{max-width:1100px;margin:auto;padding:0 24px 200px}.app-header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:26px 0 22px}.eyebrow{font-size:10px;letter-spacing:.19em;color:var(--green);font-weight:750;margin:0 0 4px}h1{font-size:23px;letter-spacing:-.025em;margin:0;font-weight:650}.save-status{color:var(--muted);font-size:11px;text-align:right}.notice{border:1px solid #e4d7b7;background:#fff9eb;color:#775c24;padding:12px 14px;border-radius:12px;font-size:13px;margin:0 0 16px;overflow-wrap:anywhere}.workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:start}.slide-panel{position:sticky;top:16px;min-width:0}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin:0 0 10px;min-height:20px}.section-heading span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.section-heading a{white-space:nowrap;flex:none}.slide-stage{aspect-ratio:16/9;width:100%;border:1px solid var(--border);border-radius:13px;background:#fff;display:grid;place-items:center;overflow:hidden}.slide-stage img{width:100%;height:100%;max-height:52svh;object-fit:contain;display:block}.slide-placeholder{text-align:center;font-size:13px;color:var(--muted);padding:24px;white-space:pre-line}.page-nav{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:12px 0 0}.page-nav button{font-size:12px;background:transparent;border-color:transparent;padding:8px}.page-picker{font-size:13px;white-space:nowrap}.page-picker select{font-weight:600;text-align:center}
.script-panel{min-width:0}.script-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.script-heading h2{margin:0;font-size:16px;font-weight:650}.script-heading span{font-size:12px;color:var(--muted)}.script-tip{color:var(--muted);font-size:12px;margin:8px 0 18px}.empty-state{padding:38px 24px;text-align:center;border:1px dashed #cfd8ce;border-radius:14px;background:#fafbf8}.empty-symbol{display:block;font-family:Georgia,serif;font-size:32px;color:#93a396;margin-bottom:10px}.empty-state h3{font-size:15px;margin:0 0 10px;font-weight:600}.empty-state p{font-size:13px;color:var(--muted);margin:0;white-space:pre-line;overflow-wrap:anywhere}.sentences{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.sentence{display:flex;text-align:left;width:100%;gap:13px;align-items:flex-start;padding:17px 15px;background:#fff;border:1px solid var(--border);font-weight:400;min-height:60px}.sentence[aria-current="true"]{border-color:#7da88e;background:#edf4ed;box-shadow:inset 3px 0 var(--green)}.sentence-number{font-size:11px;color:#8c988f;min-width:20px;padding-top:4px;font-variant-numeric:tabular-nums}.sentence-text{font-family:Georgia,"Times New Roman",serif;font-size:19px;line-height:1.65;overflow-wrap:anywhere}.sentence[aria-current="true"] .sentence-number{color:var(--green)}
.player{position:fixed;bottom:0;left:0;right:0;background:#fcfdfb;border-top:1px solid var(--border);padding:12px 24px calc(12px + env(safe-area-inset-bottom));z-index:10}.player-inner{max-width:680px;margin:auto}.player-caption{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;color:var(--muted);margin-bottom:10px;min-height:17px}.player-caption span:last-child{text-align:right;overflow-wrap:anywhere}.transport{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:12px}.transport button{min-height:49px}.primary-control{background:var(--green);border-color:var(--green);color:#fff;font-size:15px}.side-control{background:transparent}.player-options{display:flex;align-items:center;gap:10px;margin-top:8px}.player-options button{background:transparent;border-color:transparent;padding:4px 8px;font-size:12px}.player-options button[aria-pressed="true"]{background:#e8f1e8;color:var(--green);border-color:#b7cbb9}.rate-control{font-size:12px;white-space:nowrap;margin-left:auto;display:flex;align-items:center;gap:4px}.rate-control select{font-size:12px}.voice-control{max-width:190px}.voice-control select{font-size:11px;color:var(--muted);width:100%;text-overflow:ellipsis}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:700px){.app-shell{padding:0 16px 206px}.app-header{padding:20px 0 18px}h1{font-size:21px}.workspace{display:block}.slide-panel{top:0;z-index:3;background:#f6f7f3;padding:8px 0 3px;margin:-8px 0 22px}.slide-stage img{max-height:31svh}.slide-stage{max-height:31svh}.section-heading{margin-bottom:8px}.page-nav{margin-top:6px}.script-tip{margin-bottom:15px}.empty-state{padding:20px}.empty-symbol{display:none}.player{padding:10px 16px calc(9px + env(safe-area-inset-bottom))}.transport{gap:8px}.transport button{padding:8px 5px;font-size:13px}.primary-control{font-size:14px!important}.player-options{gap:3px;flex-wrap:wrap}.voice-control{max-width:130px}.voice-control select{min-height:36px}.player-options button{padding:4px 7px}.sentence{padding:14px 12px}.sentence-text{font-size:19px}}
@media(max-width:360px){.voice-control{flex-basis:100%;max-width:none;text-align:right}.voice-control select{width:auto;max-width:100%;min-height:30px}.app-shell{padding-bottom:235px}.page-nav button{font-size:11px}}
.recorded-voice{font-size:11px;color:var(--muted);white-space:nowrap;line-height:36px}.source-links{display:flex;gap:14px;flex:none}.player-options{flex-wrap:wrap}.app-shell{padding-bottom:235px}@media(max-width:700px){.app-shell{padding-bottom:250px}.player-options .voice-control,.player-options .recorded-voice{margin-left:auto}.player-options .rate-control{margin-left:auto}}
.script-tools{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.script-tools button{font-size:12px;padding:7px 10px;min-height:38px}.script-tools button:first-child{color:var(--green);background:#edf4ed;border-color:#b7cbb9}.sync-status{font-size:11px;color:var(--green);margin:8px 0}.is-error{color:#9d462f!important}.edited-note{font-size:12px;background:#fff9eb;border:1px solid #e4d7b7;color:#775c24;border-radius:8px;padding:9px 11px}.script-editor{color:inherit;background:#f6f7f3;width:min(860px,calc(100% - 32px));max-height:calc(100svh - 40px);border:1px solid var(--border);border-radius:18px;padding:24px;overscroll-behavior:contain}.script-editor::backdrop{background:rgba(24,40,32,.5);backdrop-filter:blur(3px)}.editor-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.editor-heading h2{font-size:20px;margin:0}.editor-help{font-size:13px;color:var(--muted);margin:12px 0 16px}.script-editor fieldset{border:0;padding:0;margin:0;min-width:0}.editor-toolbar{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:16px}.editor-toolbar button{font-size:12px;padding:7px 10px}.split-mode{border:1px solid var(--border);border-radius:10px;background:white;padding:0 8px;font-size:12px}.editor-label{display:block;font-size:13px;font-weight:600;margin:14px 0 7px}.editor-label span{font-weight:400;color:var(--muted);font-size:11px;margin-left:6px}.editor-text,.editor-note,.editor-auth input,.edit-link-output{width:100%;font:inherit;color:inherit;min-width:0;background:#fff;border:1px solid #c4d1c7;border-radius:10px;padding:12px;resize:vertical;font-size:15px;line-height:1.7}.editor-text{font-family:Georgia,'Times New Roman',serif;font-size:17px;min-height:190px}.editor-note{font-size:13px}.editor-text:focus,.editor-note:focus,.editor-auth input:focus{outline:2px solid #8eaf99;outline-offset:1px}.editor-preview-wrap{font-size:12px;margin-top:14px;border-top:1px solid var(--border);padding-top:12px}.editor-preview-wrap summary{cursor:pointer;min-height:35px}.editor-preview-wrap summary span{color:var(--muted);margin-left:8px}.editor-preview{max-height:210px;overflow:auto;padding-left:30px}.editor-preview li{padding:5px 8px;line-height:1.65;font-size:15px;font-family:Georgia,serif;overflow-wrap:anywhere}.editor-secondary{display:flex;flex-wrap:wrap;gap:4px;margin-top:10px}.editor-secondary button{border-color:transparent;background:transparent;color:var(--green);font-size:12px;padding:6px 9px}.editor-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}.editor-footer p{font-size:12px;color:var(--muted);margin:0;overflow-wrap:anywhere}.editor-footer button{flex-shrink:0}.editor-auth{background:#edf4ed;border:1px solid #c4d6c8;border-radius:10px;padding:12px;margin:0 0 16px}.editor-auth label{font-size:12px}.auth-input{display:flex;gap:8px;margin:6px 0}.editor-auth input{font-size:13px}.auth-input button{white-space:nowrap;font-size:12px}.editor-auth p{font-size:11px;color:var(--muted);margin:5px 0 0}.edit-link-output{font-size:12px;margin-top:10px}
@media(max-width:700px){body:has(.script-editor[open]){overflow:hidden}.script-editor{width:calc(100% - 16px);max-height:calc(100svh - 16px);padding:16px;border-radius:14px}.editor-heading h2{font-size:18px}.editor-toolbar{gap:5px}.split-mode{flex-basis:100%}.split-mode select{width:100%}.editor-toolbar button{flex-grow:1;min-height:42px}.editor-label span{display:block;margin:2px 0 0}.editor-footer{align-items:stretch;flex-direction:column;gap:10px}.editor-footer button{width:100%}.editor-text{font-size:16px;min-height:200px}.editor-preview-wrap summary span{display:block;margin:3px 0}.auth-input{flex-direction:column}.script-tools button{min-height:42px}.script-tools{gap:5px}}
.editor-footer{position:sticky;bottom:-24px;background:#f6f7f3;padding-bottom:6px;box-shadow:0 -8px 16px #f6f7f3}@media(max-width:700px){.editor-footer{bottom:-16px;padding-bottom:6px}}
.sentence-text{-webkit-user-select:text;user-select:text}.word-select-mode .word-token{cursor:pointer;text-decoration:underline dotted #8ca99a;text-underline-offset:4px}.word-select-mode .word-token:hover{background:#cfe4d4;border-radius:3px}.script-tools button[aria-pressed="true"]{background:#dcebdd;border-color:#7da88e;color:var(--green)}.word-mode-tip{font-size:12px;color:var(--green);margin:0 0 12px}.word-selection{position:fixed;z-index:15;bottom:calc(var(--practice-player-height,180px) + 8px);left:50%;transform:translateX(-50%);width:min(620px,calc(100% - 24px));display:flex;align-items:center;gap:8px;padding:12px;background:#fff;border:1px solid #9bb6a3;border-radius:13px;box-shadow:0 6px 24px #163b2526}.word-selection>div{flex:1;min-width:0}.word-selection strong{display:block;font:600 21px Georgia,serif;overflow-wrap:anywhere}.word-selection span{display:block;font-size:11px;color:var(--muted);line-height:1.4;margin-top:4px}.word-selection button{padding:8px;white-space:nowrap;font-size:12px;flex:none}.word-selection button:last-child{border:0;color:var(--muted);min-width:30px;font-size:20px}.wordbook-dialog{width:min(640px,calc(100% - 24px));max-height:calc(100svh - 28px);border:1px solid var(--border);border-radius:16px;background:#f6f7f3;color:inherit;padding:22px}.wordbook-dialog::backdrop{background:#18282080}.wordbook-status,.wordbook-empty{font-size:13px;color:var(--muted);line-height:1.7}.wordbook-list{padding:0;margin:16px 0 0;list-style:none}.wordbook-item{padding:16px 0;border-top:1px solid var(--border)}.wordbook-item-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.wordbook-item strong{font:600 23px Georgia,serif;flex:1;overflow-wrap:anywhere;min-width:80px}.wordbook-item button{font-size:12px;padding:7px 10px}.wordbook-item .word-remove{border-color:transparent;background:transparent;color:var(--muted)}.wordbook-item p{font-size:13px;color:var(--muted);line-height:1.6;margin:8px 0 0;overflow-wrap:anywhere}body:has(.wordbook-dialog[open]){overflow:hidden}@media(max-width:430px){.word-selection{flex-wrap:wrap;padding:10px;gap:6px}.word-selection>div{flex-basis:calc(100% - 40px)}.word-selection button:last-child{position:absolute;right:5px;top:4px}.word-selection button:not(:last-child){flex:1}.word-selection strong{padding-right:24px}.wordbook-dialog{padding:16px}.wordbook-item strong{font-size:22px}}
.read-all{width:100%;min-height:44px;margin:0 0 8px;font-size:13px;color:var(--green);background:#edf4ed;border-color:#b7cbb9}.read-all[aria-pressed="true"]{background:var(--green);color:white}.app-shell{padding-bottom:calc(var(--practice-player-height,260px) + 24px)}
.wordbook-fixed{position:sticky;top:-22px;z-index:1;background:#f6f7f3;padding:0 0 10px;border-bottom:1px solid var(--border)}.word-auto-controls{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:16px}.word-auto-controls label{display:flex;gap:7px;align-items:center;font-size:13px;white-space:nowrap}.word-auto-controls input{width:65px;min-height:44px;padding:7px;border:1px solid #c4d1c7;border-radius:9px;font:inherit;color:inherit;background:white;text-align:center}.word-auto-controls input:disabled{opacity:.65}.word-auto-buttons{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:6px;flex:1;min-width:240px}.word-auto-buttons button{padding:8px;font-size:13px}.word-auto-progress{margin:10px 0 0;font-size:12px;line-height:1.6;color:var(--green);overflow-wrap:anywhere}.wordbook-dialog{overflow-y:auto}.wordbook-item[aria-current="true"]{background:#e8f1e8;border-radius:10px;padding:14px 10px;border-color:#a9c4b1}@media(max-width:430px){.wordbook-fixed{top:-16px}.word-auto-controls label,.word-auto-buttons{width:100%}.word-auto-buttons{flex-basis:100%}}
.word-auto-controls input{font-size:16px}
#word-book-loop{width:20px;height:20px;min-height:20px;flex:none;padding:0;margin:0;accent-color:var(--green)}.word-book-loop-label{min-height:44px;cursor:pointer}@media(max-width:430px){.word-auto-controls label{width:auto}}