:root{--bg: #fbf5ec;--bg2: #f5ead9;--fg: #3b2a1d;--muted: #8a6f57;--gold: #b8863b;--gold-deep: #96632a;--gold-soft: rgba(184, 134, 59, .12);--gold-line: rgba(184, 134, 59, .38);--card: #fffdf9;--card2: #f7eddf;--line: #e8d7c1;--word: #a06a22;--word-zh: #96744a;--ok: #4f9e73;--bad: #c2606f;--radius: 16px;--shadow: 0 2px 10px rgba(120, 90, 50, .08);--shadow-lg: 0 6px 22px rgba(120, 90, 50, .14)}*{box-sizing:border-box}button{-webkit-tap-highlight-color:transparent;touch-action:manipulation;font-family:inherit}html,body{margin:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}body{background:radial-gradient(1200px 600px at 50% -10%,rgba(184,134,59,.1),transparent 62%),var(--bg)}.app{max-width:760px;margin:0 auto;padding:0 14px 70px}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 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button.on{background:linear-gradient(180deg,var(--gold),var(--gold-deep));color:#fffaf0;border-color:var(--gold);font-weight:700}.section-title{font-size:15px;color:var(--gold-deep);letter-spacing:1px;margin:26px 4px 12px;font-weight:700}.hero{position:relative;margin:12px -14px 0;overflow:hidden;border-radius:0 0 18px 18px;box-shadow:var(--shadow)}.hero-bg{width:100%;height:auto;display:block;object-fit:cover}.part-grid{display:grid;gap:14px}.part-card{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;cursor:pointer;overflow:hidden;position:relative;box-shadow:var(--shadow);transition:transform .08s ease,border-color .15s ease,box-shadow .15s ease}.part-card:active{transform:scale(.99)}.part-card:hover{border-color:var(--gold-line);box-shadow:var(--shadow-lg)}.part-cover-wrap{position:relative;flex:none}.part-cover{width:104px;height:138px;border-radius:12px;object-fit:cover;display:block;background:var(--card2)}.part-title-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.part-no{font-size:11px;font-weight:800;color:#fffaf0;background:linear-gradient(180deg,var(--gold),var(--gold-deep));padding:2px 8px;border-radius:999px;letter-spacing:.5px;flex:none}.part-info{flex:1;min-width:0;display:flex;flex-direction:column}.part-title{font-size:19px;margin:0;color:var(--fg)}.part-range{font-size:12px;color:var(--gold-deep);letter-spacing:1px;margin-top:4px}.part-intro{color:var(--muted);font-size:13px;line-height:1.6;margin:4px 0 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14px;background:linear-gradient(transparent,#3b2a1d9e 40%,#3b2a1deb);color:#fffaf0}.story-part-no{font-size:12px;color:var(--gold);letter-spacing:1px}.story-title{font-size:21px;margin:6px 0 4px;color:#fffaf0;line-height:1.3}.story-ch{display:block;font-size:13px;font-weight:800;color:var(--gold);letter-spacing:1px;margin-bottom:3px}.story-count{font-size:12px;color:#fffaf0cc}.audio-section{margin:16px 0 10px}.audio-section-title{font-size:13px;color:var(--gold-deep);font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:6px}.vocab-audio{display:flex;gap:10px}.va-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:4px;border:1px solid var(--gold-line);background:var(--gold-soft);color:var(--gold-deep);font-weight:700;padding:11px;border-radius:12px;font-size:14px;cursor:pointer;line-height:1.2}.va-btn .va-emoji{font-size:16px}.va-btn .va-text{white-space:nowrap}.va-btn:active{transform:scale(.97)}.va-btn.va-stop{flex:0 0 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var(--line);border-radius:var(--radius);padding:16px;color:var(--fg);box-shadow:var(--shadow)}.word{border:none;background:var(--gold-soft);color:var(--word);border-radius:7px;padding:1px 6px;margin:0 1px;cursor:pointer;font:inherit;line-height:1.7;display:inline;text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:1.5px;text-underline-offset:.28em}.word .w-en{font-weight:700}.word .w-zh{color:var(--word-zh);font-size:.82em;margin-left:4px}.cloze{display:inline-flex;align-items:baseline;gap:4px}.cloze-zh{color:var(--word-zh);font-family:inherit;font-size:1em!important;font-weight:700!important;cursor:pointer;border-bottom:1px dotted var(--gold-line)}.cloze-en{border:none;border-bottom:1px dotted var(--gold-line);background:transparent;color:var(--word);font-family:inherit;font-size:1em!important;font-weight:700!important;cursor:pointer;padding:0 2px;border-radius:4px}.cloze-en:active{background:var(--gold-soft)}.cloze-input{-moz-appearance:none;appearance:none;-webkit-appearance:none;border:none;border-bottom:2px solid var(--gold);background:transparent;color:var(--word);font-family:inherit;font-size:1em;font-weight:700;line-height:1.6;min-width:64px;max-width:150px;padding:0 4px;outline:none;text-align:center;border-radius:0}.cloze-input{font-size:1em!important;font-weight:700!important}.cloze-input:focus{background:var(--gold-soft);border-radius:4px 4px 0 0}.cloze-input.ok{border-bottom-color:var(--ok);color:var(--ok)}.cloze-input.bad{border-bottom-color:var(--bad);color:var(--bad)}.cloze-ans{color:var(--ok);font-size:.78em;font-weight:700}.cloze-bar{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}.cloze-btn{border:1px solid var(--line);background:var(--card);color:var(--fg);padding:9px 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var(--line);background:var(--bg2);padding:12px;border-radius:10px;font-size:15px;cursor:pointer;color:var(--fg)}.quiz-opt.correct{background:var(--ok);color:#fffaf0;border-color:var(--ok)}.quiz-opt.wrong{background:var(--bad);color:#fffaf0;border-color:var(--bad)}.quiz.done{text-align:center}.quiz-btn{margin-top:12px;border:none;background:linear-gradient(180deg,var(--gold),var(--gold-deep));color:#fffaf0;padding:10px 18px;border-radius:10px;font-weight:700;cursor:pointer}@media (min-width: 768px){.app{max-width:900px;padding:0 24px 80px}.brand{font-size:18px}.hero{margin:16px -24px 0;border-radius:0 0 22px 22px}.hero-bg{max-height:420px}.part-grid{grid-template-columns:repeat(2,1fr);gap:16px}.part-card{flex-direction:column;padding:14px}.part-cover-wrap{width:100%}.part-cover{width:100%;height:190px;border-radius:14px}.part-title-row{margin-top:10px}.part-title{font-size:20px}.part-intro{-webkit-line-clamp:2}.pd-hero{height:280px;margin:16px -24px 0;border-radius:0 0 22px 22px}.pd-title{font-size:32px}.pd-intro{font-size:15px}.chapter-list{grid-template-columns:repeat(2,1fr);gap:10px}.chapter-item{flex-direction:column;align-items:flex-start;gap:6px;padding:14px}.ch-no{font-size:13px}.ch-title{font-size:15px}.story-hero{height:280px;margin:16px -24px 0;border-radius:0 0 22px 22px}.story-title{font-size:26px}.story-text{font-size:18px;padding:22px}}@media (min-width: 1024px){.app{max-width:1100px}.hero-bg{max-height:480px}.part-cover{height:230px}.story-hero{height:340px}.story-text{font-size:19px;line-height:2.1}}@media (max-width: 480px){.app{padding:0 12px calc(72px + env(safe-area-inset-bottom))}.topbar{padding:10px 0}.brand{font-size:13px;letter-spacing:0}.topbar-center{font-size:13px;font-weight:800;letter-spacing:0;padding:0 4px}.accent-label{font-size:0}.accent-label:before{content:"点读";font-size:11px}.accent-toggle button{padding:6px 10px;font-size:12px}.hero{margin:10px -12px 0;border-radius:0 0 14px 14px}.section-title{font-size:14px;margin:22px 4px 10px}.part-card{gap:12px;padding:10px}.part-cover{width:88px;height:118px}.part-title{font-size:17px}.part-no{font-size:10px;padding:1px 6px}.part-range{font-size:11px}.part-intro{font-size:12px;-webkit-line-clamp:2}.part-go{font-size:12px;margin-top:6px}.pd-hero{height:190px;margin:12px -12px 0}.pd-title{font-size:22px}.pd-intro{font-size:13px}.chapter-item{padding:11px 12px;gap:8px;flex-wrap:wrap}.ch-no{font-size:11px;flex:none}.ch-title{font-size:15px;font-weight:700;flex:1 1 100%}.ch-word{font-size:11px}.story-hero{height:220px;margin:12px -12px 0}.story-title{font-size:18px}.vocab-audio{gap:8px}.va-btn{font-size:13px;padding:12px 6px}.tabs{gap:6px}.tabs button{padding:8px 10px;font-size:12px}.story-text{font-size:18px;line-height:1.9;padding:14px 12px}.word{padding:2px 5px;user-select:none;-webkit-user-select:none}.cloze{gap:3px}.cloze-bar{gap:8px}.cloze-btn{padding:11px 14px;font-size:14px}.block-title{font-size:15px}.vt-play{font-size:20px;padding:2px 6px}.vocab-table th,.vocab-table td{padding:8px 10px;font-size:13px}.quiz-word{font-size:20px}.quiz-options{gap:8px}.quiz-opt{padding:13px 10px;font-size:14px}.gate{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#fbf5ec,#f3e7d4);padding:20px}.gate-card{width:100%;max-width:380px;background:var(--card,#fffdf9);border:1px solid var(--line,#e8d7c1);border-radius:18px;box-shadow:0 12px 40px #785a322e;padding:34px 28px;text-align:center}.gate-logo{font-size:38px}.gate-title{font-size:18px;font-weight:800;color:var(--gold-deep,#96632a);margin:10px 0 6px;line-height:1.4}.gate-sub{font-size:13px;color:var(--muted,#8a6f57);margin:0 0 22px}.gate-input{width:100%;box-sizing:border-box;font-size:20px;font-weight:700;letter-spacing:2px;text-align:center;padding:14px 12px;border:2px solid var(--line,#e8d7c1);border-radius:12px;color:var(--fg,#3b2a1d);background:#fffdf9;outline:none;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.gate-input:focus{border-color:var(--gold,#b8863b)}.gate-error{color:#c0392b;font-size:13px;margin:12px 0 0;min-height:18px}.gate-btn{margin-top:18px;width:100%;padding:13px;border:none;border-radius:12px;cursor:pointer;font-size:16px;font-weight:800;color:#fff;background:linear-gradient(135deg,#b8863b,#96632a)}.gate-btn:disabled{opacity:.6;cursor:default}.gate-hint{font-size:12px;color:var(--muted,#8a6f57);margin:14px 0 0}.gate-title{font-size:16px}.gate-input{font-size:18px;letter-spacing:1px}}