: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 0;background:#fbf5ecf0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--gold-line)}.brand{border:none;background:none;font-size:15px;font-weight:800;color:var(--gold-deep);letter-spacing:.3px;cursor:pointer;line-height:1.3;text-align:left;padding:0}.accent-toggle{display:flex;align-items:center;gap:6px;flex:none}.accent-label{font-size:12px;color:var(--muted)}.accent-toggle button{border:1px solid var(--line);background:var(--card);color:var(--muted);padding:6px 12px;border-radius:999px;font-size:13px;cursor:pointer}.accent-toggle 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:8px 0 0;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.part-go{margin-top:10px;font-size:13px;font-weight:700;color:var(--gold-deep)}.pd-hero{position:relative;margin:12px -14px 0;height:230px;overflow:hidden;display:flex;align-items:flex-end;border-radius:0 0 18px 18px;box-shadow:var(--shadow)}.pd-cover{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.pd-hero-text{position:relative;width:100%;padding:16px 18px 18px;background:linear-gradient(transparent,#3b2a1d8c 45%,#3b2a1deb);color:#fffaf0}.pd-no{font-size:12px;font-weight:800;color:#fffaf0;background:linear-gradient(180deg,var(--gold),var(--gold-deep));padding:2px 10px;border-radius:999px;letter-spacing:1px}.pd-title{font-size:26px;margin:10px 0 4px;color:#fffaf0}.pd-range{font-size:13px;color:var(--gold);letter-spacing:1px}.pd-intro{color:var(--muted);font-size:14px;line-height:1.7;margin:14px 4px 0}.pd-progress{display:flex;align-items:center;gap:10px;margin:16px 4px 4px}.pd-progress-bar{flex:1;height:8px;background:var(--card2);border-radius:999px;overflow:hidden}.pd-progress-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--gold-deep),var(--gold));border-radius:999px;transition:width .3s ease}.pd-progress-label{font-size:12px;color:var(--muted);white-space:nowrap}.chapter-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.chapter-item{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-left:3px solid transparent;border-radius:12px;padding:12px 14px;cursor:pointer;box-shadow:var(--shadow)}.chapter-item:active{transform:scale(.99)}.chapter-item.read{border-left-color:var(--gold)}.chapter-item.locked{opacity:.55;cursor:default}.ch-no{font-size:12px;font-weight:800;color:var(--gold-deep);flex:none;white-space:nowrap}.ch-no-short{display:none}.ch-no-full{display:inline}.ch-title{flex:1;min-width:0;font-size:14px;color:var(--fg);line-height:1.4}.ch-word{font-size:12px;color:var(--muted);flex:none}.ch-locked{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 8px;flex:none}.ch-read-dot{color:var(--gold);font-weight:800;flex:none}.story-hero{position:relative;margin:12px -14px 0;height:160px;overflow:hidden;display:flex;align-items:flex-end;border-radius:0 0 18px 18px;box-shadow:var(--shadow)}.story-hero-cover{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;opacity:.7}.story-hero-meta{position:relative;width:100%;padding:12px 16px 14px;background:linear-gradient(transparent,#3b2a1d9e 40%,#3b2a1de6);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-count{font-size:12px;color:#fffaf0cc}.vocab-audio{display:flex;gap:10px;margin:16px 0 10px}.va-btn{flex:1;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}.va-btn:active{transform:scale(.97)}.va-btn.va-stop{flex:0 0 auto;background:var(--card);color:var(--bad);border-color:var(--line)}.waveform{display:flex;align-items:center;gap:2px;height:40px;padding:0 4px;margin-bottom:14px;border-radius:10px;background:var(--card);border:1px solid 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.w-zh{color:var(--word-zh);font-size:.82em;margin-left:4px}.block{margin-top:20px}.block-title{font-size:16px;margin:0 0 10px;color:var(--fg)}.block-toggle{width:100%;text-align:left;border:1px solid var(--line);background:var(--card);color:var(--fg);padding:12px 14px;border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}.vocab-table{margin-top:10px;overflow-x:auto;border:1px solid var(--line);border-radius:12px}.vocab-table table{width:100%;border-collapse:collapse;font-size:14px}.vocab-table th,.vocab-table td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left}.vocab-table th{background:var(--bg2);color:var(--muted);font-weight:600}.vt-word{font-weight:700;color:var(--word)}.vt-ph{color:var(--muted);font-family:Georgia,serif}.vt-play{border:none;background:none;font-size:18px;cursor:pointer}.comic{display:grid;gap:12px}.comic-img{width:100%;border-radius:12px;border:1px solid var(--line)}.comic.empty{color:var(--muted);font-size:14px;border:1px dashed var(--line);border-radius:12px;padding:20px;text-align:center}.quiz{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.quiz-progress{font-size:12px;color:var(--muted);margin:0 0 6px}.quiz-word{font-size:22px;font-weight:800;margin:0 0 14px;color:var(--word)}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quiz-opt{border:1px solid 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:210px;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-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}.accent-label{display:none}.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 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