:root{--gold-50:#fff6e4;--gold-100:#f0ddb8;--gold-200:#dfc391;--gold-300:#d0aa69;--gold-400:#c29a53;--gold-500:#b88f45;--gold-600:#9c7331;--gold-700:#76551f;--gold-800:#4b3514;--blue-50:#eef4f5;--blue-100:#dce7ea;--blue-200:#c2d1d7;--blue-300:#9eb5bf;--blue-400:#7e98a5;--blue-500:#627a86;--blue-600:#4e6470;--blue-700:#3e5059;--blue-900:#252d32;--green-50:#f0f7ee;--green-100:#dcebd7;--green-200:#c2d7bb;--green-300:#a6c39f;--green-400:#8aac83;--green-500:#789771;--green-600:#5c794f;--green-700:#405d3b;--rose-50:#fbeeee;--rose-100:#f2d7d7;--rose-200:#e6b8b8;--rose-300:#d79494;--rose-400:#cc7e7e;--rose-500:#b96a6a;--rose-600:#9d5555;--rose-700:#7b3f3f;--lavender-50:#f6f2fa;--lavender-100:#e7dff3;--lavender-200:#cec2e4;--lavender-300:#b6a3d6;--lavender-400:#9f8dca;--lavender-500:#8b7db8;--lavender-600:#715e9f;--lavender-700:#594779;--coral-50:#fbf1e9;--coral-100:#f0d8c5;--coral-200:#e2b98f;--coral-300:#d8a171;--coral-400:#cf8e5f;--coral-500:#c27c49;--coral-600:#986036;--coral-700:#744528;--bg-primary:#fbfaf6;--bg-secondary:#f1eadf;--bg-tertiary:#e7ddcf;--bg-elevated:#fffdf8;--text-on-primary:#2b2924;--bg-overlay:#28241e73;--text-primary:#2b2924;--text-secondary:#4e6470;--text-tertiary:#6f7f86;--text-quaternary:#a79c8d;--text-inverse:#fffdf8;--border-primary:#ded2c0;--border-secondary:#d4c6b4;--border-tertiary:#e6dbc9;--ring-color:var(--gold-500);--font-zh:"PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "Heiti SC", "WenQuanYi Micro Hei", sans-serif;--font-display:"Fraunces", var(--font-zh);--font-body:"Nunito", var(--font-zh);--font-mono:"DM Mono", var(--font-zh);--font-cn:var(--font-zh);--text-display:34px;--text-h1:28px;--text-h2:22px;--text-h3:18px;--text-lg:16px;--text-base:14px;--text-sm:13px;--text-xs:12px;--text-2xs:11px;--weight-light:300;--weight-regular:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--weight-extrabold:800;--leading-tight:1.2;--leading-snug:1.35;--leading-normal:1.5;--leading-relaxed:1.65;--space-05:2px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-baseline:17px;--space-5:20px;--space-6:24px;--space-7:28px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--radius-xs:6px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-2xl:28px;--radius-full:9999px;--radius-control:18px;--radius-card:24px;--radius-container:32px;--shadow-xs:0 1px 2px #2b271f0f;--shadow-sm:0 2px 6px #2b271f12, 0 1px 2px #2b271f0d;--shadow-md:0 4px 12px #2b271f1a, 0 2px 4px #2b271f0f;--shadow-lg:0 8px 24px #2b271f21, 0 3px 8px #2b271f12;--shadow-xl:0 16px 40px #2b271f26, 0 6px 16px #3d3a350f;--shadow-2xl:0 24px 64px #2b271f2e, 0 12px 32px #2b271f1f;--shadow-gold:0 4px 12px #b88f4557, 0 2px 4px #b88f4538;--shadow-gold-lg:0 8px 20px #b88f456b, 0 4px 8px #b88f4547;--shadow-soft:0 1px 2px #2b271f0f, 0 3px 10px #3d3a350f, inset 0 1px 0 #ffffffa6;--shadow-soft-lg:0 2px 4px #2b271f12, 0 10px 28px #2b271f21, inset 0 1px 0 #ffffffb3;--glass-bg:#fffdf8cc;--glass-border:#fffdf89e;--glass-blur:blur(20px) saturate(180%);--glass-border-warm:#ded2c0d1;--gold-gradient:linear-gradient(135deg, #d6bb82 0%, #b88f45 48%, #a78346 100%);--gold-gradient-soft:linear-gradient(135deg, var(--gold-100) 0%, var(--gold-50) 100%);--cream-gradient:linear-gradient(180deg, #fbfaf6 0%, #f5f1ea 100%);--bg-glow-top-left:radial-gradient(ellipse 60% 40% at 0% 0%, #b88f4524 0%, transparent 70%);--bg-glow-bottom-right:radial-gradient(ellipse 50% 35% at 100% 100%, #8b7db81a 0%, transparent 70%);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--ease-standard:cubic-bezier(.2, 0, 0, 1);--ease-decelerate:cubic-bezier(0, 0, .2, 1);--ease-accelerate:cubic-bezier(.3, 0, 1, 1);--ease-empasized:cubic-bezier(.2, 0, 0, 1);--duration-fast:.12s;--duration-base:.2s;--duration-slow:.3s;--duration-slower:.4s;--duration-spring:.5s;--touch-min:44px;--touch-sm:38px;--touch-lg:52px;--co-primary:var(--blue-600);--co-primary-strong:var(--blue-700);--co-primary-soft:var(--blue-50);--mist-pink:#b97f84;--mist-pink-strong:#9e656a;--mist-pink-soft:#b97f8433;--mist-pink-mid:#e7c6c9;--accent-flash:var(--lavender-500);--accent-flash-strong:var(--lavender-600);--accent-flash-dark:var(--lavender-700);--accent-flash-soft:var(--lavender-50);--accent-flash-mid:var(--lavender-100);--primary:var(--gold-500);--primary-soft:var(--gold-50);--primary-dark:var(--gold-700);--muted:var(--text-tertiary);--ink:var(--text-primary);--border:var(--border-primary);--bg:var(--bg-primary);--card:var(--bg-elevated);--radius:var(--radius-md);--shadow:var(--shadow-md);--green:var(--green-500);--green-soft:var(--green-50);--red:var(--rose-500);--blue:var(--blue-500);--blue-soft:var(--blue-50)}*{box-sizing:border-box}body{color:var(--ink);font-family:var(--font-body);background:#e9e5de;margin:0}.skip-link{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}#main-content:focus{outline:none}.skip-link:focus{z-index:10000;clip:auto;background:var(--gold-600,#c9a96e);color:#fff;border-radius:8px;width:auto;height:auto;margin:0;padding:10px 14px;font-size:14px;font-weight:700;line-height:1.2;text-decoration:none;position:fixed;top:8px;left:8px;overflow:visible}.diag-panel{z-index:2147483647;color:#edf3f7;isolation:isolate;background:#13192094;padding:20px;font-family:ui-monospace,Menlo,monospace;position:fixed;inset:0;overflow:auto}.diag-card{background:#15202bef;border:1px solid #fff3;border-radius:14px;width:min(760px,100%);margin:0 auto;padding:18px;box-shadow:0 20px 60px #00000059}.diag-head{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.diag-panel h1{margin:0 0 6px;font:700 20px system-ui,sans-serif}.diag-panel p{color:#c8d5df;margin:0;font:14px system-ui,sans-serif}.diag-panel button{color:#fff;cursor:pointer;background:#9a762f;border:0;border-radius:8px;padding:10px 14px;font:600 14px system-ui,sans-serif}.diag-close{flex:none;place-items:center;display:grid;background:#ffffff26!important;padding:8px!important}.diag-panel pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#00000042;border-radius:8px;max-height:min(65vh,680px);margin:16px 0 0;padding:12px;font-size:12px;line-height:1.45;overflow:auto}.app-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.mobile-frame{background:var(--bg-primary);width:min(100%,430px);min-height:860px;position:relative;overflow:hidden;box-shadow:0 18px 60px #3d3a352e}.page-content{min-height:860px;padding:0 14px 88px}.topbar{border-bottom:1px solid var(--glass-border-warm);background:var(--glass-bg);height:38px;-webkit-backdrop-filter:var(--glass-blur);justify-content:space-between;align-items:center;margin:0 -14px;padding:0 17px;display:flex}.topbar>button,.home-left,.home-left button{color:var(--ink);font:500 var(--text-sm) inherit;cursor:pointer;background:0;border:0;align-items:center;gap:5px;padding:0;display:flex}.home-left{gap:24px;padding-right:8px}.home-left .brand-moon{color:var(--gold-500);flex-shrink:0;place-items:center;display:grid}.logo,.brand-text{font-family:var(--font-body)}.logo-mark{background:linear-gradient(135deg,var(--gold-400),var(--gold-600));width:25px;height:25px;color:var(--text-on-primary);border-radius:8px;place-items:center;font-size:15px;font-weight:700;line-height:1;display:inline-grid;box-shadow:inset 0 1px #ffffff59,0 1px 3px #b88f457a}.brand-text{color:var(--text-primary);letter-spacing:-.01em;margin:0;padding:0;font-size:17px;font-weight:800;line-height:1}.category-row{border-bottom:1px solid var(--border-tertiary);background:color-mix(in oklch,var(--bg-elevated) 58%,var(--bg-primary));white-space:nowrap;align-items:center;gap:20px;height:52px;margin:0 -14px;padding:0 17px;display:flex;overflow:hidden}.category-row button,.sub-tabs button{color:var(--text-secondary);font-family:var(--font-body);font-size:var(--text-base);cursor:pointer;background:0;border:0;padding:15px 0 11px;font-weight:700}.home-top{position:relative}.home-top .brand-center{white-space:nowrap;align-items:center;gap:6px;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.brand-moon{color:var(--gold-600);flex-shrink:0}.category-row .active,.sub-tabs .active{color:var(--gold-700);border-bottom:3px solid var(--gold-500)}.list-section{gap:var(--space-4);display:grid}.list-section.home-video-list{padding-top:var(--space-4)}.member-group-card{margin:var(--space-baseline) 0 0;background:var(--bg-elevated);border-radius:var(--radius-card);box-shadow:var(--shadow-soft);border:1px solid #c29a5357;border-left:3px solid #b88f45;align-items:center;gap:11px;padding:12px 10px 12px 9px;display:flex}.mg-icon{color:#4e7050;background:#e2ede2;border-radius:9px;flex:none;place-items:center;width:28px;height:28px;display:grid}.mg-body{flex:1;min-width:0}.mg-title{color:#4e7050;margin:0 0 3px;font-size:14px;font-weight:700;line-height:1.4}.mg-line{font-size:var(--text-xs);color:var(--muted);word-break:break-word;margin:0;line-height:1.55}.mg-line+.mg-line{margin-top:2px}.mg-line b{color:var(--ink);font-weight:700}.mg-line.mg-nowrap{white-space:nowrap}.mg-line b{margin:0 -1px;padding:0 1px}.mg-copy{border-radius:var(--radius-sm);color:var(--green-700);font:700 11px var(--font-body);white-space:nowrap;cursor:pointer;transition:background var(--duration-fast) var(--ease-standard),transform var(--duration-fast) var(--ease-standard);background:#fff;border:1px solid #78977173;flex:none;padding:6px 9px}.mg-copy:hover{background:var(--green-50)}.mg-copy:active{transform:scale(.96)}body.app-dark .member-group-card{background:var(--bg-elevated);border-color:#c29a5380}body.app-dark .mg-copy{color:#a9c9a2;background:0 0;border-color:#78977180}.mg-popout{z-index:60;flex-direction:column;align-items:flex-end;gap:12px;display:flex;position:fixed;bottom:24px;right:24px}.mg-popout-fab{color:#4e7050;height:46px;font:700 13px var(--font-body);cursor:pointer;box-shadow:0 6px 18px color-mix(in oklch,var(--text-primary) 16%,transparent),inset 0 1px 0 #ffffffb3;transition:transform var(--duration-fast) var(--ease-standard),box-shadow var(--duration-fast) var(--ease-standard);background:#e2ede2;border:0;border-radius:999px;align-items:center;gap:7px;padding:0 16px;display:flex}.mg-popout-fab:hover{box-shadow:0 10px 24px color-mix(in oklch,var(--text-primary) 20%,transparent);transform:translateY(-2px)}.mg-popout-fab:active{transform:translateY(0)scale(.97)}.mg-popout-fab:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:2px}.mg-popout-card{background:var(--bg-elevated);border-radius:var(--radius-card);width:320px;box-shadow:0 16px 40px color-mix(in oklch,var(--text-primary) 18%,transparent);animation:mg-pop .18s var(--ease-standard);border:1px solid #c29a5366;border-left:3px solid #b88f45;align-items:flex-start;gap:11px;padding:14px 14px 14px 13px;display:flex;position:relative}@keyframes mg-pop{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.mg-popout-card .mg-copy{align-self:center}.mg-popout-close{background:var(--bg-tertiary);width:24px;height:24px;color:var(--text-tertiary);cursor:pointer;border:0;border-radius:50%;place-items:center;display:grid;position:absolute;top:8px;right:8px}.mg-popout-close:hover{background:var(--bg-secondary);color:var(--text-primary)}body.app-dark .mg-popout-fab{color:#a9c9a2;background:#ffffff14}body.app-dark .mg-popout-card{background:var(--bg-elevated);border-color:#c29a5380}.video-card{background:var(--bg-elevated);border:1px solid color-mix(in oklch,var(--border-primary) 82%,var(--gold-100));border-radius:var(--radius-card);cursor:pointer;box-shadow:0 2px 5px color-mix(in oklch,var(--text-primary) 5%,transparent),0 12px 26px color-mix(in oklch,var(--gold-700) 7%,transparent),inset 0 1px 0 #ffffffe0;transition:transform var(--duration-base) var(--ease-standard),box-shadow var(--duration-base) var(--ease-standard),border-color var(--duration-base) var(--ease-standard);overflow:hidden}.video-card:focus-visible{border-color:var(--gold-300);box-shadow:0 5px 12px color-mix(in oklch,var(--text-primary) 6%,transparent),0 18px 34px color-mix(in oklch,var(--gold-700) 12%,transparent),inset 0 1px 0 #ffffffeb}@media (hover:hover){.video-card:hover{border-color:var(--gold-300);box-shadow:0 5px 12px color-mix(in oklch,var(--text-primary) 6%,transparent),0 18px 34px color-mix(in oklch,var(--gold-700) 12%,transparent),inset 0 1px 0 #ffffffeb;transform:translateY(-2px)}}.thumb{background:#d9c6ac;height:205px;position:relative;overflow:hidden}.thumb-art{background:linear-gradient(120deg,#9c8165,#e8d8bd 44%,#97836d);place-items:center;display:grid}.art-emoji{filter:drop-shadow(0 8px 8px #0000002e);font-size:80px}.video-thumb{background:linear-gradient(135deg,#6b5a44,#a8947a 55%,#5c4c39);place-items:center;display:grid}.video-cover{object-fit:contain;object-position:center;pointer-events:none;background:0 0;width:100%;height:100%;animation:.35s videoCoverFade;display:block}@keyframes videoCoverFade{0%{opacity:0}to{opacity:1}}.video-metadata-preload{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute;inset:auto;overflow:hidden}.video-cover-shade{pointer-events:none;background:linear-gradient(color-mix(in oklch,var(--blue-900) 22%,transparent),transparent 42%,color-mix(in oklch,var(--blue-900) 52%,transparent));position:absolute;inset:0}.video-play{background:color-mix(in oklch,var(--blue-900) 64%,transparent);border:1px solid color-mix(in oklch,var(--bg-elevated) 78%,transparent);color:#fff;opacity:.92;width:48px;height:48px;transition:transform var(--duration-fast) var(--ease-spring),background var(--duration-fast);border-radius:50%;place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.video-card:focus-visible .video-play{background:var(--gold-600);transform:translate(-50%,-50%)scale(1.1)}@media (hover:hover){.video-card:hover .video-play{background:var(--gold-600);transform:translate(-50%,-50%)scale(1.1)}}.video-card:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:3px}.checkin,.episode,.duration{color:var(--text-on-primary);font-size:var(--text-xs);border-radius:8px;padding:5px 10px;font-weight:700;position:absolute}.checkin{background:color-mix(in oklch,var(--bg-elevated) 88%,var(--gold-100));border:1px solid color-mix(in oklch,var(--gold-300) 82%,var(--bg-elevated));box-shadow:0 3px 10px color-mix(in oklch,var(--blue-900) 18%,transparent),inset 0 1px 0 #ffffffd6;color:var(--gold-800);letter-spacing:.02em;align-items:center;gap:6px;display:inline-flex;top:12px;left:12px}.episode{background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:var(--text-inverse);top:auto;bottom:10px;left:12px;transform:none}.duration{background:color-mix(in oklch,var(--blue-900) 82%,transparent);align-items:center;gap:4px;display:flex;bottom:10px;right:10px}.heart{background:color-mix(in oklch,var(--bg-elevated) 92%,var(--gold-50));width:39px;height:39px;color:var(--gold-600);cursor:pointer;box-shadow:0 3px 10px color-mix(in oklch,var(--blue-900) 12%,transparent);border:0;border-radius:50%;place-items:center;display:grid;position:absolute;top:12px;right:12px}.video-detail{padding:13px 16px 15px}.video-detail h2{color:var(--text-primary);font-size:17px;font-weight:var(--weight-semibold);margin:0 0 4px}.video-detail p{font-size:var(--text-sm);color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;margin:0;overflow:hidden}.chips{gap:8px;margin:10px 0;display:flex}.chips span{background:var(--blue-50);color:var(--blue-700);font-size:var(--text-xs);border-radius:6px;padding:4px 9px}.metrics{border-top:1px solid var(--border-tertiary);color:var(--text-secondary);font-size:var(--text-2xs);flex-wrap:wrap;gap:7px;padding-top:10px;display:flex}.metrics span{background:var(--gold-50);color:var(--gold-700);border-radius:8px;padding:3px 7px}.metrics time{margin-left:auto}.titlebar{align-items:center;gap:17px;height:56px;display:flex}.titlebar h1,.search-title h1{margin:0;font-size:26px}.titlebar>svg:last-child{margin-left:auto}.search-title{height:56px;color:var(--primary);align-items:center;gap:12px;display:flex}.search-title .titlebar-back svg{width:23px;height:23px}.switch{background:var(--bg-tertiary);border-radius:12px;grid-template-columns:1fr 1fr;gap:0;padding:5px;display:grid}.switch button{color:var(--muted);font:600 var(--text-base) inherit;cursor:pointer;background:0;border:0;border-radius:9px;justify-content:center;align-items:center;gap:7px;padding:12px 4px;display:flex}.switch .active{color:var(--primary);background:#fff;box-shadow:0 2px 5px #3d3a3512}.search-box{height:58px;margin-top:var(--space-baseline);border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;align-items:center;gap:11px;padding:5px 6px 5px 15px;display:flex}.search-box svg{color:#a6a096;width:19px;height:19px}.search-box input{min-width:0;color:var(--ink);font:var(--text-base) inherit;border:0;outline:0;flex:1;font-size:16px}.search-box button,.primary-btn{background:var(--primary);color:var(--text-on-primary);border-radius:var(--radius-md);font:700 var(--text-base) inherit;cursor:pointer;border:0;padding:13px 18px}.search-box button{padding:11px 16px;font-size:12.6px}.res-head{color:var(--text-primary);margin:16px 0 10px;font-size:16px;font-weight:700}.result-grid{grid-template-columns:1fr;gap:12px;margin-bottom:12px;display:grid}.search-result{border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-xs);background:#fff;align-items:center;gap:8px;margin-top:18px;padding:16px;display:flex}.search-result svg{margin-left:auto}.pill-row{gap:10px;margin:9px 0 4px;display:flex}.pill-row button{border:1px solid var(--border);color:var(--text-secondary);font:700 var(--text-base) inherit;cursor:pointer;background:#fff;border-radius:24px;padding:10px 19px}.pill-row .active{background:var(--primary);color:#fff;border-color:var(--primary)}.sub-tabs{border-bottom:1px solid var(--border);gap:30px;display:flex}.sub-tabs b{background:var(--blue-soft);font-size:var(--text-2xs);border-radius:12px;padding:2px 7px}.word-card{border:1px solid var(--border);border-radius:var(--radius-lg);min-height:490px;box-shadow:var(--shadow-sm);background:#fff;margin-top:20px;padding:24px;position:relative}.word-card h2{margin:0 0 12px;font-size:31px}.word-star{color:var(--primary);position:absolute;top:17px;right:17px}.phonetic{font-size:var(--text-base);color:var(--blue);align-items:center;gap:5px;display:flex}.word-card h3{font-size:var(--text-h2);line-height:1.65}.example-label{color:#6f6a63;font-weight:600}.word-card blockquote{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);font-size:var(--text-base);margin:8px 0;padding:14px;line-height:1.6}.word-card blockquote span{color:var(--muted);font-size:var(--text-sm)}.word-card footer{color:var(--muted);font-size:var(--text-xs);border-top:1px solid #eee;padding-top:13px;position:absolute;bottom:17px;left:24px;right:24px}.word-card footer button{float:right;color:var(--primary);font:700 var(--text-base) 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*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}.web-app.desktop.web-course .app-shell{place-items:center;min-height:900px;padding:24px;display:grid}.web-app.desktop.web-course .mobile-frame{background:var(--bg-primary);width:min(100%,430px);min-height:860px;position:relative;overflow:hidden;box-shadow:0 18px 60px #3d3a352e}.web-app.desktop.web-course .page-content{min-height:860px;padding:0 14px 88px}.web-app.desktop.web-course .topbar{border-bottom:1px solid var(--glass-border-warm);background:var(--glass-bg);height:38px;-webkit-backdrop-filter:var(--glass-blur);justify-content:space-between;align-items:center;margin:0 -14px;padding:0 17px;display:flex}.web-app.desktop.web-course .topbar>button,.web-app.desktop.web-course .home-left,.web-app.desktop.web-course .home-left button{color:var(--ink);font:500 var(--text-sm) inherit;cursor:pointer;background:0;border:0;align-items:center;gap:5px;padding:0;display:flex}.web-app.desktop.web-course 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:is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .fc-example-box{background:var(--blue-50)!important;border-color:var(--blue-200)!important;border-left-color:var(--blue-400)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .fc-syn-tag{color:var(--blue-700)!important;background:#eaf0f3!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .fc-example-play{border-color:var(--blue-200)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .fc-example-play:hover,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .cp-reference-back button,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-phrases .cp-reference-back strong{color:var(--blue-700)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-phrases 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.fc-example-box{background:var(--green-50)!important;border-color:var(--green-200)!important;border-left-color:var(--green-400)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-expressions .fc-syn-tag{color:var(--green-700)!important;background:#e2ede2!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-expressions .fc-example-play{border-color:var(--green-200)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-expressions .fc-example-play:hover,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-expressions .cp-reference-back button,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-expressions .cp-reference-back strong{color:var(--green-700)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-expressions 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.fc-example-box{background:var(--green-50)!important;border-color:var(--green-200)!important;border-left-color:var(--green-400)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-expressions .fc-syn-tag{color:var(--green-700)!important;background:#e2ede2!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-expressions .fc-example-play{border-color:var(--green-200)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-expressions .fc-example-play:hover,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-expressions .fc-jump-btn{color:var(--green-700)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-speak-btn{color:var(--coral-600)!important;background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-speak-btn:hover{background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-ipa-row i,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-pron-row i,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-example-label,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-detail-label,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-example-play,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-jump-btn{color:var(--coral-600)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-example-box{background:var(--coral-50)!important;border-color:var(--coral-200)!important;border-left-color:var(--coral-400)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-syn-tag{color:var(--coral-600)!important;background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-example-play{border-color:var(--coral-200)!important}:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .fc-example-play:hover,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .cp-reference-back button,:is(.web-app.desktop.web-course,html.mobile-app) :is(.cp-fc-card,.cp-fs-card).cp-fc-cat-corrections .cp-reference-back strong{color:var(--coral-600)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-speak-btn{color:var(--coral-600)!important;background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-speak-btn:hover{background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-ipa-row i,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-pron-row i,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-example-label,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-detail-label,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-example-play,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-jump-btn{color:var(--coral-600)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-example-box{background:var(--coral-50)!important;border-color:var(--coral-200)!important;border-left-color:var(--coral-400)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-syn-tag{color:var(--coral-600)!important;background:#f1dec9!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-example-play{border-color:var(--coral-200)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-example-play:hover,:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card.cp-fc-cat-corrections .fc-jump-btn{color:var(--coral-600)!important}:is(.web-app.desktop.web-course,html.mobile-app) .cp-fav-card-sent .fc-jump-btn{color:var(--blue-600)!important}.web-app.desktop.web-course .cp-fav-card:not(.cp-fav-card-sent){border-radius:12px;padding:14px 14px 12px}.web-app.desktop.web-course .cp-fav-card .fc-word-back{margin:0 0 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0;margin-top:10px}.rv-btn:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:2px}.rv-run{min-height:100%;padding:var(--space-3) var(--space-4) 0;flex-direction:column;display:flex}.rv-bar{flex:none;align-items:center;gap:12px;display:flex}.rv-quit{background:var(--bg-secondary);width:44px;height:44px;color:var(--text-secondary);cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.rv-foot-btns{align-items:stretch;gap:10px;margin-top:14px;display:flex}.rv-foot-btns .rv-btn{margin-top:0}.rv-foot-btns .rv-btn.next{flex:1;width:auto;min-width:0}.rv-foot-btns .rv-btn.ghi{flex:none;width:auto;min-width:104px;margin-top:0;padding:0 16px}.rv-track{background:var(--bg-tertiary);border-radius:999px;flex:1;height:8px;position:relative;overflow:hidden}.rv-track i{background:var(--co-primary);transition:width var(--duration-base) var(--ease-standard);border-radius:999px;position:absolute;inset:0 auto 0 0}.rv-cnt{color:var(--text-tertiary);font-variant-numeric:tabular-nums;flex:none;font-size:13px;font-weight:700}.rv-card-wrap{padding:var(--space-4) 0 0;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:0;display:flex}.rv-card{background:var(--bg-elevated);border:1px solid var(--border-secondary);border-radius:var(--radius-xl);width:100%;min-height:320px;box-shadow:var(--shadow-md);cursor:pointer;transition:box-shadow var(--duration-fast) var(--ease-standard);padding:26px 22px;display:flex}.rv-card:active{box-shadow:var(--shadow-sm)}.rv-card:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:2px}.rv-face{text-align:center;width:100%;animation:rvIn var(--duration-fast) var(--ease-standard);flex-direction:column;justify-content:center;align-items:center;display:flex}.rv-face-back{text-align:left;align-items:flex-start}@keyframes rvIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.rv-badge{border-radius:var(--radius-full);background:var(--co-primary-soft);color:var(--co-primary);font-size:var(--text-2xs);letter-spacing:.04em;align-self:center;padding:3px 10px;font-style:normal;font-weight:800;display:inline-block}.rv-face-back .rv-badge{align-self:flex-start}.rv-badge.ok{background:color-mix(in oklch,var(--green-500) 16%,var(--bg-elevated));color:var(--green-500)}.rv-main{font-family:var(--font-display);color:var(--text-primary);word-break:break-word;margin:16px 0 0;font-size:27px;font-weight:600;line-height:1.35}.rv-main.sm{font-size:20px;line-height:1.5}.rv-main.zh{font-family:var(--font-body);font-size:22px;font-weight:700;line-height:1.5}.rv-ipa{justify-content:center;align-items:center;gap:8px;min-height:24px;margin:9px 0 0;display:flex}.rv-face-back .rv-ipa{justify-content:flex-start}.rv-ipa i{font-family:var(--font-body);font-size:var(--text-sm);color:var(--text-tertiary);letter-spacing:.01em;font-style:normal}.rv-play{background:color-mix(in oklch,var(--co-primary) 12%,var(--bg-elevated));width:28px;height:28px;color:var(--co-primary);cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.rv-play:active{background:color-mix(in oklch,var(--co-primary) 22%,var(--bg-elevated))}.rv-div{background:var(--border-tertiary);border-radius:2px;width:40px;height:2px;margin:16px auto}.rv-face-back .rv-div{margin:16px 0}.rv-ask{font-size:var(--text-sm);color:var(--text-tertiary);margin:18px 0 0}.rv-hint{font-size:var(--text-2xs);color:var(--text-tertiary);opacity:.9;margin:8px 0 0}.rv-zh{font-size:var(--text-lg);color:var(--text-primary);margin:0;font-weight:700;line-height:1.6}.rv-tip{font-size:var(--text-sm);color:var(--text-secondary);margin:10px 0 0;line-height:1.7}.rv-ex{background:var(--bg-secondary);border-radius:var(--radius-md);align-items:flex-start;gap:8px;width:100%;margin:14px 0 0;padding:11px 12px;display:flex}.rv-ex-label{font-size:var(--text-2xs);color:var(--co-primary);flex:none;padding-top:2px;font-weight:800}.rv-ex-en{min-width:0;font-size:var(--text-sm);color:var(--text-primary);flex:1;font-weight:600;line-height:1.6}.rv-list{flex-direction:column;gap:8px;width:100%;margin:4px 0 0;display:flex}.rv-li{background:var(--bg-secondary);border-radius:var(--radius-md);text-align:left;flex-direction:column;gap:2px;padding:9px 11px;display:flex}.rv-li-en{font-size:var(--text-sm);color:var(--text-primary);font-weight:700}.rv-li-zh{font-size:var(--text-xs);color:var(--text-tertiary)}.rv-from{font-size:var(--text-2xs);color:var(--text-tertiary);text-align:center;white-space:nowrap;text-overflow:ellipsis;max-width:100%;margin:14px 0 0;overflow:hidden}.rv-actions{flex:none;gap:10px;padding:16px 0 8px;display:flex}.rv-actions .rv-btn{flex:1}.rv-fb{border-radius:var(--radius-md);background:var(--bg-secondary);flex-direction:column;flex:none;gap:2px;margin:16px 0 0;padding:11px 14px;display:flex}.rv-fb b{font-size:var(--text-sm);font-weight:800}.rv-fb span{font-size:var(--text-xs);color:var(--text-tertiary)}.rv-fb.ok{border-left:3px solid var(--green-500)}.rv-fb.ok b{color:var(--green-500)}.rv-fb.no{border-left:3px solid var(--gold-600)}.rv-fb.no b{color:var(--gold-700)}.rv-next-wrap{flex:none;padding:10px 0 12px}.rv-next-wrap .rv-btn{margin-top:0}.rv-done{padding:0 var(--space-4) var(--space-4)}.rv-done-hero{background:var(--bg-elevated);border:1px solid var(--border-secondary);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:22px 18px 18px}.rv-done-kicker{font-size:var(--text-xs);letter-spacing:.06em;color:var(--co-primary);font-weight:700;display:inline-block}.rv-done-num{align-items:baseline;gap:7px;margin:6px 0 0;display:flex}.rv-done-num b{font-family:var(--font-body);color:var(--text-primary);font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;line-height:1}.rv-done-num span{font-size:var(--text-sm);color:var(--text-secondary)}.rv-done-grid{gap:8px;margin:16px 0 0;display:flex}.rv-done-p{background:var(--bg-secondary);border-radius:var(--radius-md);text-align:center;flex-direction:column;flex:1;gap:2px;padding:10px 8px;display:flex}.rv-done-p b{font-size:var(--text-h3);color:var(--text-primary);font-variant-numeric:tabular-nums;font-weight:800}.rv-done-p b small{color:var(--text-secondary);margin-left:1px;font-size:12px;font-weight:700}.rv-done-p span{color:var(--text-secondary);font-size:12px;font-weight:700}.rv-done-note{font-size:var(--text-sm);color:var(--text-secondary);margin:14px 0 0;line-height:1.6}body.app-dark .rv-hero,body.app-dark .rv-done-hero,body.app-dark .rv-card{border-color:var(--border-primary);box-shadow:0 2px 6px #00000047}body.app-dark .rv-kicker,body.app-dark .rv-done-kicker,body.app-dark .rv-badge{color:var(--gold-200);background:color-mix(in oklch,var(--gold-400) 16%,var(--bg-elevated))}body.app-dark .rv-badge.ok{color:var(--green-500);background:color-mix(in oklch,var(--green-500) 18%,var(--bg-elevated))}body.app-dark .rv-btn.next,body.app-dark .rv-btn.reveal,body.app-dark .rv-btn.ok{background:var(--gold-400);color:#2b2924}body.app-dark .rv-btn.next:active,body.app-dark .rv-btn.reveal:active{background:var(--gold-300)}body.app-dark .rv-btn.no{background:var(--bg-tertiary);border-color:var(--border-primary);color:var(--text-primary)}body.app-dark .rv-fb.no b{color:var(--gold-200)}body.app-dark .rv-play{color:var(--gold-200);background:color-mix(in oklch,var(--gold-400) 18%,var(--bg-elevated))}.rv-card{min-height:300px}.rv-done-words{background:var(--bg-elevated);border:1px solid var(--border-tertiary);border-radius:var(--radius-card);margin:18px 0 0;padding:14px 14px 12px}.rv-done-words-label{font-size:var(--text-2xs);letter-spacing:.04em;color:var(--text-tertiary);margin-bottom:10px;font-weight:800;display:block}.rv-chips{flex-wrap:wrap;gap:6px;display:flex}.rv-chip{border-radius:var(--radius-full);background:color-mix(in oklch,var(--co-primary) 10%,var(--bg-elevated));max-width:100%;color:var(--text-primary);font-size:var(--text-xs);white-space:nowrap;text-overflow:ellipsis;padding:5px 10px;font-weight:700;overflow:hidden}.rv-chip.no{background:color-mix(in oklch,var(--gold-500) 14%,var(--bg-elevated));color:var(--gold-700)}.rv-chip.skip{background:var(--bg-secondary);color:var(--text-tertiary)}.rv-done-p.skip{background:var(--bg-tertiary)}.rv-done-p.skip b{color:var(--text-secondary)}body.app-dark .rv-done-words{background:var(--bg-elevated);border-color:var(--border-primary)}body.app-dark .rv-chip{background:color-mix(in oklch,var(--gold-400) 14%,var(--bg-elevated));color:var(--text-primary)}body.app-dark .rv-chip.no{background:color-mix(in oklch,var(--gold-400) 22%,var(--bg-elevated));color:var(--gold-200)}.done-cards{background:var(--bg-elevated);border:1px solid var(--border-tertiary);border-radius:var(--radius-card);margin:16px 0 0;padding:13px 13px 9px}.done-cards-h{font-size:var(--text-xs);color:var(--text-tertiary);margin:0 0 8px;font-weight:700;line-height:1.5}.done-cards-h b{font-size:var(--text-sm);color:var(--text-primary);font-weight:900}.done-cards-h em{color:var(--gold-700);margin-left:5px;font-style:normal;font-weight:800}.done-cards-h small{font-size:var(--text-2xs);color:var(--text-quaternary);margin-left:6px}.done-cards-list{margin:0;padding:0;list-style:none}.done-card{border-top:1px solid var(--border-tertiary)}.done-card:first-child{border-top:0}.done-card-row{text-align:left;cursor:pointer;width:100%;min-height:52px;color:inherit;background:0 0;border:0;align-items:center;gap:8px;padding:7px 2px;display:flex}.done-card-row:active{opacity:.72}.done-card-en{min-width:0;color:var(--text-primary);overflow-wrap:anywhere;flex:auto;font-size:15px;font-weight:800;line-height:1.35}.done-card.no .done-card-en{color:var(--gold-700)}.done-card-zh{max-width:46%;color:var(--text-tertiary);text-align:right;-webkit-line-clamp:2;-webkit-box-orient:vertical;flex:0 auto;font-size:12.5px;font-weight:600;line-height:1.35;display:-webkit-box;overflow:hidden}.done-card-row svg{color:var(--text-quaternary);flex:none}.done-card-body{padding:2px 2px 11px}.done-card-ipa{color:var(--text-tertiary);margin-right:8px;font-size:12.5px;font-weight:700;display:inline-block}.done-card-eg{color:var(--text-secondary);margin:5px 0 0;font-size:13.5px;line-height:1.55}.done-card-say{border:1px solid var(--border-secondary);border-radius:var(--radius-full);background:var(--bg-secondary);min-height:40px;color:var(--text-secondary);cursor:pointer;align-items:center;gap:5px;margin-top:9px;padding:0 13px;font-size:13px;font-weight:800;display:inline-flex}.done-card-say:active{transform:translateY(1px)}body.app-dark .done-cards{background:var(--bg-elevated);border-color:var(--border-primary)}body.app-dark .done-card.no .done-card-en{color:var(--gold-200)}.rv-quiz-card{background:var(--bg-elevated);border:1px solid var(--border-secondary);border-radius:var(--radius-xl);width:100%;box-shadow:var(--shadow-md);flex-direction:column;align-items:center;padding:20px 16px 18px;display:flex}.rv-qtag{border-radius:var(--radius-full);background:var(--co-primary-soft);color:var(--co-primary);letter-spacing:.04em;align-self:center;padding:3px 10px;font-size:12.5px;font-style:normal;font-weight:800}.rv-qask{font-family:var(--font-body);color:var(--text-secondary);text-align:center;margin:10px 0 0;font-size:16px;font-weight:700}.rv-bigplay{background:var(--co-primary-soft);width:88px;height:88px;color:var(--co-primary);cursor:pointer;transition:transform var(--duration-fast) var(--ease-standard);border:0;border-radius:50%;place-items:center;margin:18px 0 4px;display:grid}.rv-bigplay:active{transform:scale(.94)}.rv-bigplay:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:3px}.rv-opts{gap:var(--space-2);grid-template-columns:1fr;width:100%;margin:16px 0 0;display:grid}.rv-opt{border:1px solid var(--border-secondary);border-radius:var(--radius-card);background:var(--bg-primary);width:100%;min-height:52px;color:var(--text-primary);font-family:var(--font-body);text-align:left;cursor:pointer;transition:border-color var(--duration-fast),background var(--duration-fast);justify-content:flex-start;align-items:center;padding:12px 16px;font-size:16px;font-weight:600;line-height:1.4;display:flex}.rv-opt:active{transform:scale(.995)}.rv-opt.sel{border-color:var(--co-primary);background:var(--co-primary-soft);color:var(--co-primary)}.rv-opt.ok{border-color:var(--green-500);background:color-mix(in oklch,var(--green-500) 12%,var(--bg-elevated));color:var(--green-700)}.rv-opt.no{border-color:var(--rose-500);background:color-mix(in oklch,var(--rose-500) 10%,var(--bg-elevated));color:var(--rose-600)}.rv-opt:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 62%,transparent);outline-offset:2px}.rv-cloze{font-family:var(--font-display);color:var(--text-primary);text-align:center;margin:18px 0 0;padding:0 4px;font-size:23px;font-weight:600;line-height:1.6}.rv-qzh{color:var(--text-tertiary);text-align:center;margin:8px 0 0;font-size:14px}.rv-spell-zh{font-family:var(--font-body);color:var(--text-primary);text-align:center;margin:16px 0 0;font-size:26px;font-weight:700;line-height:1.4}.rv-spell-ipa{font-family:var(--font-body);color:var(--text-tertiary);margin:6px 0 0;font-size:14px;font-style:normal}.rv-input{border:1.5px solid var(--border-secondary);border-radius:var(--radius-card);background:var(--bg-primary);width:100%;min-height:52px;color:var(--text-primary);font-family:var(--font-body);text-align:center;letter-spacing:.02em;margin:18px 0 0;padding:10px 14px;font-size:16px;font-weight:600}.rv-input::placeholder{color:var(--text-tertiary);font-weight:500}.rv-input:focus{border-color:var(--co-primary);outline:none}.rv-input.ok{border-color:var(--green-500);color:var(--green-700)}.rv-input.no{border-color:var(--rose-500);color:var(--rose-600)}.rv-ans{color:var(--text-secondary);text-align:center;margin:12px 0 0;font-size:14px}.rv-ans b{color:var(--text-primary);font-weight:700}.rv-slots{border:1.5px dashed var(--border-tertiary);border-radius:var(--radius-card);background:var(--bg-primary);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;width:100%;min-height:52px;margin:16px 0 0;padding:10px;display:flex}.rv-slot-empty{color:var(--text-tertiary);font-size:13.5px}.rv-slot{border:1px solid var(--co-primary);border-radius:var(--radius-full);background:var(--co-primary-soft);min-height:40px;color:var(--co-primary);font-family:var(--font-body);cursor:pointer;padding:6px 12px;font-size:14.5px;font-weight:600}.rv-chunks{flex-wrap:wrap;justify-content:center;gap:6px;width:100%;margin:12px 0 0;display:flex}.rv-chunk{border:1px solid var(--border-secondary);border-radius:var(--radius-full);background:var(--bg-secondary);min-height:44px;color:var(--text-primary);font-family:var(--font-body);cursor:pointer;transition:opacity var(--duration-fast);padding:8px 14px;font-size:14.5px;font-weight:600}.rv-chunk:disabled{opacity:.34;cursor:default}.rv-quiz-card .rv-btn.next{width:100%}.rv-quiz-card .rv-btn.next:disabled{opacity:.45;cursor:default}body.app-dark .rv-quiz-card{background:var(--bg-elevated);border-color:var(--border-primary)}body.app-dark .rv-opt,body.app-dark .rv-slots,body.app-dark .rv-input{background:var(--bg-secondary)}body.app-dark .rv-opt.ok{color:var(--green-300)}body.app-dark .rv-opt.no{color:var(--rose-300)}body.app-dark .rv-input.ok{color:var(--green-300)}body.app-dark .rv-input.no{color:var(--rose-300)}.rv-hero{padding:15px 18px 13px}.rv-hero-row{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.rv-hero-row .rv-count{margin:0}.rv-hero-row .rv-count b{font-size:30px}.rv-hero-row .rv-queue{text-align:right;flex:none;margin:0;line-height:1.45}.rv-bar-line{margin-top:11px}.rv-sub{margin-top:7px}.rv-start{height:46px;margin-top:12px}.rv-rule{margin-top:9px;font-size:11px;line-height:1.55}.rv-sec-row{margin:var(--space-4) 0 9px;padding:0 var(--space-4);justify-content:space-between;align-items:baseline;gap:8px;display:flex}.rv-sec-row .rv-sec{margin:0;padding:0}.rv-sec-n{font-size:var(--text-2xs);color:var(--text-tertiary);flex:none}.rv-courses{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:10px;margin:0 -14px;padding:2px 14px 4px;display:flex;overflow-x:auto}.rv-courses::-webkit-scrollbar{display:none}.rv-course{scroll-snap-align:start;border:1px solid var(--border-tertiary);border-radius:var(--radius-card);background:var(--bg-elevated);width:148px;min-height:106px;font-family:var(--font-body);text-align:left;cursor:pointer;transition:transform var(--duration-fast) var(--ease-standard);flex-direction:column;flex:none;align-items:flex-start;gap:5px;padding:12px 12px 11px;display:flex}.rv-course:active{background:var(--bg-secondary);transform:scale(.98)}.rv-course:focus-visible{outline:3px solid color-mix(in oklch,var(--gold-400) 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0;font-size:20px;font-weight:600;line-height:1.7}.cq-blank{color:var(--hz);letter-spacing:.06em;font-style:normal;font-weight:800}.cq-guide{font-family:var(--font-body);color:var(--text-primary);text-align:center;margin:16px 0 0;padding:0 6px;font-size:19px;font-weight:800;line-height:1.5}.cq-quote{font-family:var(--font-display);color:var(--text-primary);text-align:center;margin:18px 0 0;padding:0 4px;font-size:21px;font-weight:600;line-height:1.55}.cq-ansline{color:var(--text-secondary);text-align:center;margin:14px 0 0;font-size:14px}.cq-ansline b{color:var(--text-primary);font-weight:800}.cq-ansline.ok b{color:var(--green-600)}.cq-ansline.no b{color:var(--rose-600)}.cq-input{border:1.5px solid var(--border-secondary);border-radius:var(--radius-card);background:var(--bg-primary);width:100%;min-height:52px;color:var(--text-primary);font-family:var(--font-body);text-align:center;margin:16px 0 0;padding:10px 14px;font-size:16px;font-weight:600}.cq-input:focus{border-color:var(--hz);outline:none}.cq-input::placeholder{color:var(--text-tertiary);font-weight:500}.cq-play{background:color-mix(in oklch,var(--hz) 12%,var(--bg-elevated));width:84px;height:84px;color:var(--hz);cursor:pointer;transition:transform var(--duration-fast);border:0;border-radius:50%;place-items:center;margin:18px 0 2px;display:grid}.cq-play:active{transform:scale(.94)}.cq-opts{gap:10px;width:100%;margin:16px 0 0;display:grid}.cq-opt{border:1px solid var(--border-secondary);border-radius:var(--radius-card);background:var(--bg-primary);width:100%;min-height:52px;color:var(--text-primary);font-family:var(--font-body);text-align:left;cursor:pointer;transition:border-color var(--duration-fast),background var(--duration-fast);flex-direction:column;align-items:flex-start;gap:2px;padding:12px 16px;font-size:16px;font-weight:600;line-height:1.4;display:flex}.cq-opt:active{transform:scale(.995)}.cq-opt.sel{border-color:var(--hz);background:color-mix(in oklch,var(--hz) 10%,var(--bg-elevated))}.cq-opt.ok{border-color:var(--green-500);background:color-mix(in oklch,var(--green-500) 13%,var(--bg-elevated));color:var(--green-700)}.cq-opt.no{border-color:var(--rose-500);background:color-mix(in oklch,var(--rose-500) 11%,var(--bg-elevated));color:var(--rose-600)}.cq-opt-en{font-weight:700}.cq-opt-zh{color:var(--text-tertiary);font-size:13px;font-weight:500}.cq-yesno{grid-template-columns:1fr 1fr;gap:10px;width:100%;margin:22px 0 0;display:grid}.cq-judge-zh{color:var(--text-tertiary);text-align:center;margin:14px 0 0;font-size:13px;line-height:1.6}.cq-judge-zh b{color:var(--text-secondary);font-weight:600}.cq-judge-ask{color:var(--text-tertiary);margin:16px 0 0;font-size:14px;font-weight:600}.cq-yn{border:1.5px solid var(--border-secondary);border-radius:var(--radius-card);background:var(--bg-primary);min-height:56px;color:var(--text-primary);font-family:var(--font-body);cursor:pointer;transition:transform var(--duration-fast);padding:10px;font-size:16px;font-weight:700}.cq-yn:active{transform:scale(.98)}.cq-yn.picked{border-color:var(--green-500);background:color-mix(in oklch,var(--green-500) 13%,var(--bg-elevated))}.cq-yn.wrong{border-color:var(--rose-500);background:color-mix(in oklch,var(--rose-500) 11%,var(--bg-elevated))}.cq-slots{border:1.5px dashed var(--border-tertiary);border-radius:var(--radius-card);background:var(--bg-primary);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;width:100%;min-height:54px;margin:16px 0 0;padding:10px;display:flex}.cq-slot-empty{color:var(--text-tertiary);font-size:13.5px}.cq-slot{border:1px solid var(--hz);border-radius:var(--radius-full);background:color-mix(in oklch,var(--hz) 12%,var(--bg-elevated));min-height:40px;color:var(--hz);font-family:var(--font-body);cursor:pointer;padding:6px 12px;font-size:14.5px;font-weight:600}.cq-chunks{flex-wrap:wrap;justify-content:center;gap:6px;width:100%;margin:14px 0 0;display:flex}.cq-chunk{border:1px solid var(--border-secondary);border-radius:var(--radius-full);background:var(--bg-secondary);min-height:44px;color:var(--text-primary);font-family:var(--font-body);cursor:pointer;transition:opacity var(--duration-fast);padding:8px 14px;font-size:14.5px;font-weight:600}.cq-chunk:disabled{opacity:.32;cursor:default}.cq-pair{grid-template-columns:1fr 1fr;gap:8px;width:100%;margin:16px 0 0;display:grid}.cq-pair-col{flex-direction:column;gap:8px;display:flex}.cq-pair-item{border:1px solid var(--border-secondary);border-radius:var(--radius-md);background:var(--bg-primary);min-height:50px;color:var(--text-primary);font-family:var(--font-body);cursor:pointer;transition:transform var(--duration-fast),background var(--duration-fast);padding:8px 10px;font-size:14.5px;font-weight:700;line-height:1.35;position:relative}.cq-pair-item.en{text-align:left}.cq-pair-item.zh{text-align:right;font-weight:600}.cq-pair-item.sel{border-width:2px;border-color:var(--cq-pair);background:color-mix(in oklch,var(--cq-pair) 46%,var(--bg-elevated));color:#6b2a36;box-shadow:0 4px 16px color-mix(in oklch,var(--cq-pair) 30%,transparent), inset 0 0 0 1px color-mix(in oklch,var(--cq-pair) 55%,transparent);padding:7px 9px;font-weight:800}.cq-pair-item.sel:active{transform:scale(.985)}.cq-pair-check{background:var(--cq-pair);color:#fffdf8;text-align:center;width:19px;height:19px;box-shadow:0 2px 6px color-mix(in oklch,var(--cq-pair) 45%,transparent);border-radius:50%;font-size:11px;font-style:normal;font-weight:900;line-height:19px;position:absolute;top:-7px;right:-7px}body.app-dark .cq-pair-item.sel{background:color-mix(in oklch,var(--cq-pair) 52%,var(--bg-elevated));color:#f7d9de}.cq-pair-item.done{opacity:.42;border-color:var(--green-500);background:color-mix(in oklch,var(--green-500) 10%,var(--bg-elevated))}.cq-pair-item.bad{border-color:var(--rose-500);background:color-mix(in oklch,var(--rose-500) 12%,var(--bg-elevated))}.cq-foot{flex-direction:column;flex:none;gap:9px;margin-top:10px;display:flex}.cq-foot-acts{align-items:stretch;gap:10px;display:flex}.cq-foot-acts>.cq-btn.next{flex:1;width:auto}.cq-foot-acts>.cq-btn.skip{flex:none;width:auto;min-width:104px;padding:0 16px}.cq-foot-acts>.cq-btn.skip.solo{flex:1;width:100%;min-width:0}.cq-fb-btns{align-items:stretch;gap:10px;display:flex}.cq-fb-btns>.cq-btn.next{flex:1;width:auto}.cq-fb-btns>.cq-btn.ghi{flex:none;width:auto;min-width:104px;padding:0 16px}.cq-foot.skip .cq-fb{background:var(--bg-secondary)}.cq-fb{border-radius:var(--radius-md);background:var(--bg-secondary);flex-direction:column;gap:2px;margin:0;padding:9px 13px;display:flex}.cq-foot.ok .cq-fb{background:color-mix(in oklch,var(--green-500) 12%,var(--bg-elevated))}.cq-foot.no .cq-fb{background:color-mix(in oklch,var(--rose-500) 9%,var(--bg-elevated))}.cq-fb b{font-size:16px;font-weight:800}.cq-foot.ok .cq-fb b{color:var(--green-700)}.cq-foot.no .cq-fb b{color:var(--rose-600)}.cq-foot.skip .cq-fb b{color:var(--text-secondary)}.cq-fb span{color:var(--text-secondary);font-size:13.5px;line-height:1.45}.cq-btn{border-radius:var(--radius-full);width:100%;height:50px;font-family:var(--font-body);cursor:pointer;transition:transform var(--duration-fast),background var(--duration-fast);border:0;justify-content:center;align-items:center;padding:0 20px;font-size:16px;font-weight:700;display:inline-flex}.cq-btn:active{transform:scale(.98)}.cq-btn.next{background:var(--gold-500);color:var(--text-inverse);box-shadow:0 4px 12px color-mix(in oklch,var(--gold-700) 22%,transparent)}.cq-btn:disabled{opacity:.42;cursor:default}.cq-btn:disabled:active{transform:none}.cq-btn.ghi{color:var(--text-secondary);border:1px solid var(--border-tertiary);background:0 0}.cq-done-wrap{justify-content:flex-start}.cq-done-hero{border-radius:var(--radius-xl);background:var(--bg-elevated);border:1px solid var(--border-secondary);box-shadow:var(--shadow-sm);flex-direction:column;align-items:center;padding:20px 12px 16px;display:flex}.cq-medal{background:var(--gold-500);width:56px;height:56px;color:var(--text-inverse);box-shadow:0 0 0 6px color-mix(in oklch,var(--gold-400) 18%,transparent);border-radius:50%;place-items:center;font-size:26px;font-weight:800;display:grid}.cq-done-n{align-items:baseline;gap:6px;margin:14px 0 0;display:flex}.cq-done-n b{font-family:var(--font-body);color:var(--text-primary);font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;line-height:1}.cq-done-n span{font-size:var(--text-sm);color:var(--text-tertiary);font-weight:600}.cq-done-sub{font-size:var(--text-sm);color:var(--text-secondary);text-align:center;margin:8px 0 0;line-height:1.5}.cq-done-pill{border-radius:var(--radius-full);letter-spacing:.2px;align-items:center;gap:5px;margin:10px 0 0;padding:4px 12px;font-size:12px;font-weight:800;display:inline-flex}.cq-done-pill.warn{color:#9d5555;background:#fbeeee;border:1px solid #b96a6a59}.cq-done-pill.gold{color:var(--gold-800);background:var(--gold-50);border:1px solid #c29a5380}.cq-done-pill.plain{color:var(--text-tertiary);background:var(--bg-secondary);border:1px solid var(--border-tertiary)}.cq-done-round{color:var(--text-primary);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin:9px 0 0;font-size:13.5px;font-weight:700;display:flex}.cq-done-round em{color:var(--text-quaternary);border:1px dashed var(--border-secondary);border-radius:var(--radius-full);padding:2px 8px;font-size:11px;font-style:normal;font-weight:800}.cq-done-n .cq-acc-n{color:var(--text-secondary);font-variant-numeric:tabular-nums;font-size:15px;font-weight:800}.cq-done-types{flex-wrap:wrap;gap:8px;margin:14px 0 0;display:flex}.cq-done-type{border-radius:var(--radius-md);background:color-mix(in oklch,var(--hz) 10%,var(--bg-elevated));border:1px solid color-mix(in oklch,var(--hz) 28%,transparent);flex-direction:column;flex:1 1 0;align-items:center;gap:1px;min-width:64px;padding:9px 4px;display:flex}.cq-done-type-n{font-size:var(--text-base);color:var(--hz);font-variant-numeric:tabular-nums;font-weight:800}.cq-done-type-l{font-size:var(--text-2xs);color:var(--text-tertiary);font-weight:700}.cq-done-note{font-size:var(--text-2xs);color:var(--text-tertiary);text-align:center;margin:14px 0 0;line-height:1.6}.cq-done-btns{flex-direction:column;gap:10px;margin:16px 0 0;display:flex}.cq-resume{border-radius:var(--radius-full);background:var(--gold-50);color:var(--gold-700);font-size:var(--text-2xs);border:1px solid color-mix(in oklch,var(--gold-400) 36%,transparent);align-items:center;gap:8px;margin:0 0 8px;padding:8px 12px;font-weight:600;line-height:1.4;display:flex}.cq-resume span{flex:1;min-width:0}.cq-resume button{border-radius:var(--radius-full);color:var(--gold-700);font-family:var(--font-body);font-size:var(--text-2xs);cursor:pointer;background:0 0;border:0;flex:none;padding:4px 10px;font-weight:800;text-decoration:underline}.cq-quit-mask{z-index:40;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#1c181257;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0}.cq-quit-card{border-radius:var(--radius-xl);background:var(--bg-elevated);border:1px solid var(--border-secondary);width:100%;max-width:320px;box-shadow:var(--shadow-lg);text-align:center;padding:20px 20px 16px}.cq-quit-t{font-size:var(--text-lg);color:var(--text-primary);margin:0;font-weight:800}.cq-quit-d{font-size:var(--text-sm);color:var(--text-secondary);margin:8px 0 0;line-height:1.6}.cq-quit-btns{flex-direction:column;gap:8px;margin:16px 0 0;display:flex}.cq-quit-btns .cq-btn{width:100%}body.app-dark .cq-resume{background:color-mix(in oklch,var(--gold-500) 18%,var(--bg-elevated));color:var(--gold-200);border-color:color-mix(in oklch,var(--gold-500) 34%,transparent)}body.app-dark .cq-resume button{color:var(--gold-200)}body.app-dark .cq-card{background:var(--bg-elevated);border-color:var(--border-primary)}body.app-dark .cq-input,body.app-dark .cq-opt,body.app-dark .cq-slots,body.app-dark .cq-yn,body.app-dark .cq-pair-item{background:var(--bg-secondary)}body.app-dark .cq-opt.ok{color:var(--green-300)}body.app-dark .cq-opt.no{color:var(--rose-300)}body.app-dark .cq-fb{background:var(--bg-tertiary)}.cq-pair-item{-webkit-line-clamp:2;word-break:break-word;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.cq-card{border-bottom-width:4px}.cq-done-types{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.cq-pair-item{-webkit-line-clamp:unset;white-space:normal;word-break:break-word;line-height:1.35;display:block}.rd-panel{padding-top:0}.rd-head{justify-content:space-between;align-items:flex-start;gap:10px;margin:0 0 12px;display:flex}.rd-head-txt h2{font-family:var(--font-body);letter-spacing:-.2px;color:var(--text-primary);margin:0;font-size:20px;font-weight:800;line-height:1.25}.rd-head-txt p{color:var(--text-tertiary);margin:3px 0 0;font-size:12.5px;line-height:1.4}.rd-quiz{cursor:pointer;border:1px solid color-mix(in oklch,var(--gold-500) 34%,transparent);background:color-mix(in oklch,var(--gold-50) 78%,var(--bg-elevated));border-radius:14px;flex:none;align-items:center;gap:8px;min-height:44px;padding:5px 8px 5px 6px;display:flex}.rd-quiz:active{transform:scale(.97)}.rd-quiz-n{background:var(--gold-500);width:28px;height:28px;color:var(--text-inverse);font:800 12px var(--font-body);font-variant-numeric:tabular-nums;border-radius:9px;flex:none;place-items:center;display:grid}.rd-quiz-t{flex-direction:column;align-items:flex-start;line-height:1.25;display:flex}.rd-quiz-t b{color:var(--gold-700);font-size:13px;font-weight:800}.rd-quiz-t small{color:var(--text-tertiary);font-size:10.5px;font-weight:600}.rd-quiz svg{color:var(--gold-600);flex:none}.rd-quiz.done{border-color:var(--border-secondary);background:var(--bg-secondary)}.rd-quiz.done .rd-quiz-n{background:var(--green-500)}.rd-quiz.done .rd-quiz-t b{color:var(--text-secondary)}.rd-tabs{background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:14px;gap:4px;margin:0 0 12px;padding:4px;display:flex}.rd-tabs button{cursor:pointer;min-height:44px;color:var(--text-secondary);font:800 13px var(--font-body);transition:background var(--duration-fast),color var(--duration-fast),box-shadow var(--duration-fast);background:0 0;border:0;border-radius:11px;flex:1 1 0;justify-content:center;align-items:center;gap:6px;display:flex}.rd-tabs button span{color:var(--text-tertiary);background:color-mix(in oklch,var(--text-primary) 6%,transparent);font-variant-numeric:tabular-nums;border-radius:999px;padding:1px 6px;font-size:10.5px;font-weight:700}.rd-tabs button.active{background:var(--bg-elevated);color:var(--co-primary);box-shadow:var(--shadow-xs)}.rd-tabs button.active span{background:var(--co-primary-soft);color:var(--co-primary)}.rd-tools{flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 10px;display:flex}.rd-chip{cursor:pointer;border:1px solid var(--border-secondary);background:var(--bg-elevated);min-height:38px;color:var(--text-secondary);font:700 12px var(--font-body);transition:background var(--duration-fast),color var(--duration-fast),border-color var(--duration-fast);border-radius:999px;align-items:center;gap:5px;padding:0 12px;display:inline-flex;position:relative}.rd-chip:after{content:"";position:absolute;inset:-3px}.rd-chip svg{opacity:0;width:0;transition:opacity var(--duration-fast)}.rd-chip.on{background:var(--co-primary-soft);border-color:color-mix(in oklch,var(--co-primary) 42%,transparent);color:var(--co-primary)}.rd-chip.on svg{opacity:1;width:13px}.rd-tools-n{font:500 10.5px var(--font-mono);color:var(--text-tertiary);margin-left:auto}.rd-note{margin:0 0 10px;font-size:11.5px;line-height:1.5}.rd-card{background:var(--bg-elevated);border:1px solid var(--border-secondary);box-shadow:var(--shadow-xs);border-radius:18px;margin:0 0 12px;padding:13px 14px 12px;position:relative}.rd-card.rd-wrong{border-color:color-mix(in oklch,var(--coral-500) 26%,transparent);background:linear-gradient(180deg,color-mix(in oklch,var(--coral-50) 42%,var(--bg-elevated)),var(--bg-elevated) 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