@import"https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=Lora:ital,wght@0,400;0,700;1,400&family=Noto+Serif+SC:wght@400;700&display=swap";:root{color-scheme:light;--bg: #fdf8f0;--card: #fffcf5;--ink: #2c1810;--muted: #8b7355;--accent: #b8860b;--accent-soft: #f5ecd7;--border: #e8dcc8;--slang-bg: #fef3c7;--slang-border: #d4a017;--slang-tag: #7c5c00;--phrase-bg: #f0eed5;--phrase-border: #8a9a3c;--phrase-tag: #4a5c1a;--grammar-bg: #f0e6f6;--grammar-border: #9b7abf;--grammar-tag: #5c3d7a;--listening-bg: #fae8e8;--listening-border: #c45b5b;--listening-tag: #8b2020;--example-bg: #faf6ee;--example-border: #c4a882;--example-ink: #4a3728;--example-hover-bg: #f8f0dc;--hl-bg: #f0e0b0;--hl-ink: #2c1810;--toc-bg: #ffffff;--scrollbar-thumb-hover: #9a730a;--entry-shadow: rgba(139,115,85,.1);--toc-shadow: rgba(0,0,0,.08);--player-bg: #2a1d14;--player-bg-deep: #160f08;--player-gold: #c9952a;--player-gold-bright: #e6c068;--player-ink: #f0e6d2;--player-text: #9c8e72;--player-text-near: #b8a888;--player-text-hover: #d8ccb2;--player-line: rgba(201,149,42,.18);--player-border: rgba(184,134,11,.22);--player-btn: rgba(232,220,200,.08);--player-btn-hover: rgba(232,220,200,.15);--player-glow: rgba(201,149,42,.32);--toggle-bg: var(--accent-soft);--toggle-ink: var(--accent);--fab-ink: #ffffff}[data-theme=dark]{color-scheme:dark;--bg: #15100a;--card: #1f1610;--ink: #ede0c8;--muted: #a89770;--accent: #e6c068;--accent-soft: #2a1d14;--border: #3a2818;--slang-bg: #2a200a;--slang-border: #b89020;--slang-tag: #f0c850;--phrase-bg: #1e2810;--phrase-border: #8a9a3c;--phrase-tag: #c4d068;--grammar-bg: #221630;--grammar-border: #9b7abf;--grammar-tag: #c8b0e8;--listening-bg: #2a1414;--listening-border: #c45b5b;--listening-tag: #e89090;--example-bg: #1a1208;--example-border: #5a4020;--example-ink: #d8c8a8;--example-hover-bg: #2e2114;--hl-bg: #5a4520;--hl-ink: #f0e0b0;--toc-bg: #1f1610;--scrollbar-thumb-hover: #e6c068;--entry-shadow: rgba(0,0,0,.3);--toc-shadow: rgba(0,0,0,.3);--toggle-bg: rgba(230,192,104,.12);--toggle-ink: var(--accent);--fab-ink: #15100a}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Lora,"Noto Serif SC",PingFang SC,Georgia,serif;background:var(--bg);color:var(--ink);line-height:1.7;max-width:820px;margin:0 auto;padding:0 16px 80px;-webkit-font-smoothing:antialiased}#player{position:sticky;top:0;z-index:100;margin:0 -16px 28px;background:var(--player-bg);border-radius:0 0 16px 16px;box-shadow:0 6px 24px #00000040;overflow:hidden}.vp-bar{padding:10px 16px 8px;background:var(--player-bg)}.vp-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.vp-dot{width:7px;height:7px;background:var(--player-gold);border-radius:50%;animation:vp-pulse 2s ease-in-out infinite;flex-shrink:0}@keyframes vp-pulse{0%,to{opacity:.5}50%{opacity:1}}.vp-label{font-size:.68rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--player-gold);flex:1}.vp-toggle{background:var(--player-btn);border:none;color:var(--player-gold);cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center;transition:background .15s}.vp-toggle:hover{background:var(--player-btn-hover)}.vp-chevron{transition:transform .3s}.vp-chevron-up{transform:rotate(180deg)}.vp-audio{width:100%;height:32px;filter:invert(1) hue-rotate(180deg);color-scheme:light}@supports (-webkit-overflow-scrolling: touch){.vp-audio{height:36px}}.vp-transcript{max-height:240px;overflow-y:auto;padding:10px 12px 14px;background:var(--player-bg);scroll-behavior:smooth;transition:max-height .3s ease,opacity .3s ease,padding .3s ease;border-top:1px solid var(--player-border)}.vp-transcript.vp-collapsed{max-height:0;opacity:0;padding-top:0;padding-bottom:0;border-top-color:transparent;overflow:hidden}.vp-lines{display:flex;flex-direction:column;gap:1px}.vp-line{font-size:.83rem;line-height:1.6;color:var(--player-text);padding:5px 12px;border-radius:6px;cursor:pointer;transition:all .2s;border-left:3px solid transparent}.vp-line:hover{color:var(--player-text-hover);background:#e8dcc80a}.vp-line.vp-near{color:var(--player-text-near)}.vp-line.vp-active{color:var(--player-ink);background:var(--player-line);border-left-color:var(--player-gold);font-weight:500}@media(max-width:600px){.vp-line{font-size:.8rem;padding:4px 10px}.vp-transcript{max-height:200px}.vp-audio{height:34px}}.vp-fullscreen-btn{background:var(--player-btn);border:none;color:var(--player-gold);cursor:pointer;padding:4px;border-radius:6px;display:flex;align-items:center;transition:background .15s}.vp-fullscreen-btn:hover{background:var(--player-btn-hover)}.vp-fs-overlay{position:fixed;inset:0;z-index:1000;background:var(--player-bg-deep);display:flex;flex-direction:column;opacity:0;pointer-events:none;transition:opacity .35s ease}.vp-fs-overlay.vp-fs-open{opacity:1;pointer-events:auto}.vp-fs-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 8px;flex-shrink:0}.vp-fs-title{font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--player-gold)}.vp-fs-close{width:40px;height:40px;border-radius:50%;background:var(--player-btn);border:none;color:var(--player-text-hover);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}.vp-fs-close:hover{background:var(--player-btn-hover);color:var(--player-ink)}.vp-fs-body{flex:1;min-height:0;position:relative;display:flex}.vp-fs-body:before,.vp-fs-body:after{content:"";position:absolute;left:0;right:0;height:100px;z-index:2;pointer-events:none}.vp-fs-body:before{top:0;background:linear-gradient(to bottom,var(--player-bg-deep) 10%,transparent 100%)}.vp-fs-body:after{bottom:0;background:linear-gradient(to top,var(--player-bg-deep) 10%,transparent 100%)}.vp-fs-scroll{width:100%;max-width:680px;min-height:0;margin:0 auto;padding:40vh 32px;overflow-y:auto;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none}.vp-fs-scroll::-webkit-scrollbar{display:none}.vp-fs-line{width:84%;margin:0 auto;font-family:Lora,"Noto Serif SC",Georgia,serif;font-size:1.15rem;line-height:1.8;color:var(--player-text);padding:14px 4px;border-radius:8px;cursor:pointer;transform:scale(1);transform-origin:center center;transition:color .35s ease,transform .35s ease,opacity .35s ease,text-shadow .35s ease;text-align:center;user-select:none;-webkit-user-select:none;will-change:transform}.vp-fs-line:hover{color:var(--player-text-hover)}.vp-fs-line.vp-fs-active{color:var(--player-ink);transform:scale(1.18);text-shadow:0 0 22px var(--player-glow)}.vp-fs-line.vp-fs-near{color:var(--player-text-near)}.vp-fs-controls{flex-shrink:0;padding:12px 24px 28px;display:flex;flex-direction:column;gap:12px}.vp-fs-progress{display:flex;align-items:center;gap:10px}.vp-fs-time{font-size:.72rem;color:var(--player-text-near);font-variant-numeric:tabular-nums;min-width:40px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.vp-fs-time-right{text-align:right}.vp-fs-bar-wrap{flex:1;height:6px;background:var(--player-btn);border-radius:3px;cursor:pointer;position:relative;overflow:hidden;touch-action:none}.vp-fs-bar-fill{height:100%;background:var(--player-gold);border-radius:3px;width:0%;transition:width .15s linear}.vp-fs-buttons{display:flex;align-items:center;justify-content:center;gap:32px}.vp-fs-btn{background:none;border:none;color:var(--player-text-hover);cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:color .15s,background .15s}.vp-fs-btn:hover{color:var(--player-ink);background:var(--player-btn)}.vp-fs-play{width:56px;height:56px;background:var(--player-gold);color:var(--player-bg-deep);border-radius:50%}.vp-fs-play:hover{background:var(--player-gold-bright);color:var(--player-bg-deep)}@media(max-width:600px){.vp-fs-line{width:86%;font-size:1rem}.vp-fs-line.vp-fs-active{transform:scale(1.16)}.vp-fs-scroll{padding:35vh 20px}.vp-fs-controls{padding:12px 16px 24px}}@media(prefers-reduced-motion:reduce){.vp-fs-overlay,.vp-fs-line{transition:none}.vp-fs-scroll{scroll-behavior:auto}}header{text-align:center;padding:32px 0 24px;border-bottom:1px solid var(--border);margin-bottom:28px}header h1{font-family:Playfair Display,Georgia,serif;font-size:1.5rem;font-weight:700;margin-bottom:8px}header .meta{font-size:.85rem;color:var(--muted);display:flex;gap:12px;justify-content:center;flex-wrap:wrap}header .meta span{background:var(--accent-soft);color:var(--accent);padding:2px 10px;border-radius:999px;font-weight:500}h2.section-title{font-family:Playfair Display,Georgia,serif;font-size:1.15rem;font-weight:700;font-style:italic;margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--accent)}.entry{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:8px;padding:16px 18px;margin-bottom:12px;transition:box-shadow .15s}.entry:hover{box-shadow:0 2px 12px var(--entry-shadow)}.entry .head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin-bottom:6px}.entry .word{font-size:1.05rem;font-weight:700;color:var(--ink);font-family:Lora,Georgia,serif}.entry .pos{font-size:.75rem;color:var(--muted);font-style:italic}.entry .tag{font-size:.7rem;padding:1px 8px;border-radius:999px;font-weight:600}.tag-slang{background:var(--slang-bg);color:var(--slang-tag);border:1px solid var(--slang-border)}.tag-phrase{background:var(--phrase-bg);color:var(--phrase-tag);border:1px solid var(--phrase-border)}.tag-grammar{background:var(--grammar-bg);color:var(--grammar-tag);border:1px solid var(--grammar-border)}.tag-listening{background:var(--listening-bg);color:var(--listening-tag);border:1px solid var(--listening-border)}.entry .meaning{font-size:.9rem;color:var(--muted);margin-bottom:8px}.entry .meaning .cn{color:var(--ink);font-weight:500}.entry .example{background:var(--example-bg);border-left:3px solid var(--example-border);padding:10px 14px;border-radius:0 8px 8px 0;font-size:.88rem;color:var(--example-ink);margin-top:8px;font-style:italic;line-height:1.65;cursor:pointer;transition:border-left-color .2s,background .2s}.entry .example[data-time]{cursor:pointer}.entry .example[data-time]:hover{border-left-color:var(--accent);background:var(--example-hover-bg)}.entry .example[data-time]:after{content:"▶";font-size:.7rem;color:var(--accent);margin-left:6px;opacity:0;transition:opacity .2s;font-style:normal}.entry .example[data-time]:hover:after{opacity:.7}.entry .example.vp-seeked{border-left-color:var(--accent);background:var(--accent-soft)}.entry .example .hl{background:var(--hl-bg);color:var(--hl-ink);font-weight:700;font-style:normal;padding:0 2px;border-radius:2px}.grammar-block{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:16px 18px;margin-bottom:14px}.grammar-block .title{font-size:.95rem;font-weight:700;margin-bottom:6px;color:var(--grammar-tag);font-family:Playfair Display,Georgia,serif}.grammar-block .desc{font-size:.88rem;color:var(--muted);margin-bottom:10px}.grammar-block .example{background:var(--example-bg);border-left:3px solid var(--example-border);padding:10px 14px;border-radius:0 8px 8px 0;font-size:.85rem;margin:6px 0;font-style:italic;line-height:1.65;transition:border-left-color .2s,background .2s}.grammar-block .example[data-time]{cursor:pointer}.grammar-block .example[data-time]:hover{border-left-color:var(--accent);background:var(--example-hover-bg)}.grammar-block .example[data-time]:after{content:"▶";font-size:.7rem;color:var(--accent);margin-left:6px;opacity:0;transition:opacity .2s;font-style:normal}.grammar-block .example[data-time]:hover:after{opacity:.7}.grammar-block .example.vp-seeked{border-left-color:var(--accent);background:var(--accent-soft)}.grammar-block .example .hl{background:var(--hl-bg);color:var(--hl-ink);font-weight:700;font-style:normal;padding:0 2px}.listening-block{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:16px 18px;margin-bottom:14px}.listening-block .title{font-size:.95rem;font-weight:700;margin-bottom:8px;color:var(--listening-tag);font-family:Playfair Display,Georgia,serif}.listening-block table{width:100%;border-collapse:collapse;font-size:.85rem;margin:8px 0}.listening-block th,.listening-block td{border:1px solid var(--border);padding:6px 10px;text-align:left}.listening-block th{background:var(--listening-bg);font-weight:600}.listening-block ul{padding-left:18px;margin:6px 0}.listening-block li{font-size:.86rem;margin-bottom:4px;color:var(--example-ink)}footer{text-align:center;margin-top:40px;padding-top:20px;border-top:1px solid var(--border);font-size:.8rem;color:var(--muted)}@media(max-width:600px){body{padding:0 12px 60px}header h1{font-size:1.25rem}.entry{padding:14px}.entry .word{font-size:1rem}.entry .example{font-size:.84rem;padding:8px 12px}}.toc-sidebar{position:fixed;top:0;right:0;width:260px;height:100vh;overflow-y:auto;background:var(--toc-bg);border-left:1px solid var(--border);padding:20px 16px;z-index:200;transform:translate(100%);transition:transform .3s ease;box-shadow:-4px 0 24px var(--toc-shadow)}.toc-sidebar.open{transform:translate(0)}.toc-sidebar .toc-header{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}.toc-sidebar .toc-section{font-size:.82rem;font-weight:700;color:var(--accent);margin:14px 0 6px;padding-left:8px;border-left:3px solid var(--accent-soft);font-family:Playfair Display,Georgia,serif}.toc-sidebar .toc-item{display:block;font-size:.8rem;color:var(--ink);text-decoration:none;padding:4px 8px;border-radius:6px;cursor:pointer;transition:background .15s,color .15s;line-height:1.5}.toc-sidebar .toc-item:hover{background:var(--accent-soft);color:var(--accent)}.toc-sidebar .toc-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.toc-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0000004d;z-index:150;opacity:0;pointer-events:none;transition:opacity .3s ease}.toc-overlay.show{opacity:1;pointer-events:auto}.toc-fab{position:fixed;bottom:20px;right:20px;width:48px;height:48px;border-radius:50%;background:var(--accent);color:var(--fab-ink);border:none;cursor:pointer;z-index:90;box-shadow:0 4px 16px #b8860b66;display:flex;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s}.toc-fab:hover{transform:scale(1.08);box-shadow:0 6px 20px #b8860b80}.toc-fab svg{width:22px;height:22px}@media(min-width:1100px){.toc-sidebar{transform:translate(0);box-shadow:none;border-left:1px solid var(--border);width:240px}.toc-overlay,.toc-fab{display:none}body{padding-right:250px}}@media(max-width:1099px){.toc-sidebar{width:280px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--accent-soft);border-radius:8px}::-webkit-scrollbar-thumb{background:var(--accent);border-radius:8px;border:2px solid var(--accent-soft)}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}*{scrollbar-width:thin;scrollbar-color:var(--accent) var(--accent-soft)}.vp-transcript::-webkit-scrollbar{width:6px}.vp-transcript::-webkit-scrollbar-track{background:#0003;border-radius:6px}.vp-transcript::-webkit-scrollbar-thumb{background:var(--player-gold);border-radius:6px;border:none}.vp-transcript::-webkit-scrollbar-thumb:hover{background:var(--player-gold-bright)}.vp-transcript{scrollbar-width:thin;scrollbar-color:var(--player-gold) rgba(0,0,0,.2)}.vp-fs-scroll{scrollbar-width:none;-ms-overflow-style:none}.vp-fs-scroll::-webkit-scrollbar{display:none;width:0;height:0}.theme-toggle{position:fixed;top:12px;right:12px;z-index:300;width:38px;height:38px;border-radius:50%;background:var(--toggle-bg);color:var(--toggle-ink);border:1px solid var(--border);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s,transform .2s,border-color .2s;box-shadow:0 2px 8px var(--toc-shadow)}.theme-toggle:hover{transform:scale(1.08)}.theme-toggle:active{transform:scale(.96)}.theme-toggle svg{width:20px;height:20px}.theme-toggle .icon-sun{display:none}.theme-toggle .icon-moon,[data-theme=dark] .theme-toggle .icon-sun{display:block}[data-theme=dark] .theme-toggle .icon-moon{display:none}@media(max-width:1099px){.vp-header{padding-right:44px}}@media(min-width:1100px){.theme-toggle{right:14px;top:14px}}