:root{--wv-brand:#fa593e;--wv-brand-hover:#d8412c;--wv-brand-soft:#ffe1d8;--wv-brand-softer:#fdf2ee;--wv-brand-text:#d8412c;--wv-read-original:#1d6ff2;--wv-read-record:#f0353d;--wv-read-clip:#12b76a;--wv-sand:#f7f4ed;--wv-surface:#fffdf8;--wv-surface-alt:#faf7f0;--wv-ink:#18211c;--wv-muted:#6b736c;--wv-faint:#9ba09a;--wv-border:#e7e2d7;--wv-border-strong:#d9d4c8;--wv-divider:#ece7dc;--wv-highlight-bg:#fdeade;--wv-highlight-border:#fa593e;--wv-word-bg:#ffd6c6;--wv-word-ink:#b0341c;--wv-phrase-bg:#f7e3ae;--wv-phrase-ink:#7d5410;--wv-danger:#b33224;--wv-shadow-sm:0 1px 2px #23271e0d;--wv-shadow:0 10px 26px #23271e14;--wv-shadow-lg:0 24px 60px #23271e29;--wv-radius:16px;--wv-radius-lg:22px;--wv-chip:999px;--wv-topbar-h:66px}[data-theme=杏橙]{--wv-brand:#c96542;--wv-brand-hover:#ad5335;--wv-brand-soft:#f6e2d8;--wv-brand-softer:#fbf3ee;--wv-brand-text:#ad5335;--wv-word-bg:#f5d9cb;--wv-word-ink:#9c3d1f;--wv-highlight-bg:#f8e8dd;--wv-highlight-border:#c96542}[data-theme=青柠]{--wv-brand:#6f8f2a;--wv-brand-hover:#5c7822;--wv-brand-soft:#e8f0d3;--wv-brand-softer:#f5f8ec;--wv-brand-text:#5c7822;--wv-word-bg:#e3eec4;--wv-word-ink:#4f6a17;--wv-highlight-bg:#f0f5e2;--wv-highlight-border:#6f8f2a}[data-theme=靛蓝]{--wv-brand:#4f5fd0;--wv-brand-hover:#4150bd;--wv-brand-soft:#e2e5fa;--wv-brand-softer:#f2f3fd;--wv-brand-text:#4150bd;--wv-word-bg:#d9ddf8;--wv-word-ink:#3341a0;--wv-highlight-bg:#ebedfb;--wv-highlight-border:#4f5fd0}.wv-body{background:var(--wv-sand);color:var(--wv-ink);min-height:100vh}.wv-body *{box-sizing:border-box}.wv-body button{font:inherit;cursor:pointer}.wv-body input,.wv-body textarea{font:inherit}.wv-shell{flex-direction:column;min-height:100vh;display:flex}.wv-video-body h3,.wv-flash h3,.wv-word-popup h3,.wv-record-body h3,.wv-video-body h3{font-size:1.06rem;font-weight:700;line-height:1.4}.wv-flash h3,.wv-word-popup h3{font-weight:700}.wv-record-progress span,.wv-stats-row strong{font-variant-numeric:tabular-nums}.wv-topbar{height:var(--wv-topbar-h);background:var(--wv-surface);border-bottom:1px solid var(--wv-border);z-index:60;justify-content:space-between;align-items:center;gap:16px;padding:0 22px;display:flex;position:sticky;top:0}.wv-brand{letter-spacing:-.03em;color:var(--wv-ink);flex-shrink:0;align-items:center;gap:9px;font-weight:800;display:inline-flex}.wv-brand-mark{background:var(--wv-brand);color:#fff;border-radius:10px 10px 10px 3px;flex-shrink:0;place-items:center;width:32px;height:32px;display:grid}.wv-brand-text{flex-direction:column;line-height:1;display:flex}.wv-brand-text b{letter-spacing:-.045em;font-size:1.06rem}.wv-brand-text span{letter-spacing:.22em;color:var(--wv-brand);margin-top:2px;font-size:.6rem;font-weight:700}.wv-nav{align-items:center;gap:6px;margin-left:auto;display:flex}.wv-nav-tab{color:var(--wv-muted);border-radius:var(--wv-chip);white-space:nowrap;background:0 0;border:1px solid #0000;padding:9px 18px;font-size:.86rem;font-weight:600;transition:background .16s,color .16s}@media (hover:hover){.wv-nav-tab:hover{color:var(--wv-ink);background:var(--wv-brand-softer)}}.wv-nav-tab.is-active{background:var(--wv-brand);color:#fff;border-color:var(--wv-brand)}.wv-account-area{flex-shrink:0;align-items:center;gap:8px;display:flex;position:relative}.wv-avatar{border:1px solid var(--wv-border-strong);background:var(--wv-surface);width:38px;height:38px;color:var(--wv-ink);border-radius:50%;flex-shrink:0;place-items:center;font-size:.82rem;font-weight:700;display:inline-grid}@media (hover:hover){.wv-avatar:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-account-menu{top:calc(var(--wv-topbar-h) - 8px);background:var(--wv-surface);border:1px solid var(--wv-border);box-shadow:var(--wv-shadow-lg);z-index:80;border-radius:12px;min-width:168px;padding:6px;position:absolute;right:18px}.wv-account-menu button,.wv-account-menu a{text-align:left;width:100%;color:var(--wv-ink);background:0 0;border:0;border-radius:8px;padding:9px 12px;font-size:.85rem;display:block}@media (hover:hover){.wv-account-menu button:hover,.wv-account-menu a:hover{background:var(--wv-brand-softer)}}.wv-card{background:var(--wv-surface);border:1px solid var(--wv-border);border-radius:var(--wv-radius)}.wv-btn{border:1px solid var(--wv-border-strong);background:var(--wv-surface);color:var(--wv-ink);border-radius:10px;align-items:center;gap:6px;padding:9px 15px;font-size:.84rem;font-weight:600;transition:background .15s,border-color .15s,color .15s;display:inline-flex}@media (hover:hover){.wv-btn:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-btn--primary{background:var(--wv-brand);border-color:var(--wv-brand);color:#fff}@media (hover:hover){.wv-btn--primary:hover{background:var(--wv-brand-hover);border-color:var(--wv-brand-hover);color:#fff}}.wv-btn--ghost{background:0 0;border-color:#0000}.wv-chip{white-space:nowrap;border-radius:7px;align-items:center;gap:5px;padding:4px 8px;font-size:.72rem;font-weight:600;line-height:1.2;display:inline-flex}.wv-chip--level{background:var(--wv-brand-softer);color:var(--wv-brand-text)}.wv-chip--topic.tone-mint{color:#0d7a4c;background:#d6f5e4}.wv-chip--topic.tone-sky{color:#1a5cae;background:#d9ebff}.wv-chip--topic.tone-grape{color:#5738bd;background:#e9e3ff}.wv-chip--topic.tone-lemon{color:#8a5606;background:#fdedbe}.wv-chip--topic.tone-peach{color:#b8431c;background:#ffe1d4}.wv-chip--topic.tone-lime{color:#5b7a0c;background:#e8f7c8}.wv-chip--topic.tone-rose{color:#b02461;background:#ffdfe9}.wv-chip--level.tone-easy{color:#12704a;background:#dcf3e4}.wv-chip--level.tone-mid{color:#8a5606;background:#fdedbe}.wv-chip--level.tone-hard{color:#5033a8;background:#e6e0fb}.wv-chip--accent.tone-teal{color:#0e6b73;background:#d2f0f2}.wv-chip--accent.tone-indigo{color:#2f479e;background:#dde6ff}.wv-chip--accent.tone-plum{color:#8b2a8f;background:#f4e0f5}.wv-chip--accent.tone-ocean{color:#10617f;background:#d5f0f6}.wv-chip--creator{background:var(--wv-brand-soft);color:var(--wv-brand-text)}.wv-chip--accent{color:#6f6553;background:#efe9dc}.wv-chip--tag{color:var(--wv-muted);background:0 0;padding:0;font-weight:500}.wv-chip--sample{color:#8a5a12;background:#fbe8c8}.wv-chip--draft{color:#fff;background:#2c4a72;border-color:#2c4a72}.wv-empty{border:1px dashed var(--wv-border-strong);border-radius:var(--wv-radius);background:var(--wv-surface);text-align:center;color:var(--wv-muted);flex-direction:column;align-items:center;gap:8px;padding:56px 24px;display:flex}.wv-empty h3{color:var(--wv-ink);margin:10px 0 0;font-size:1.02rem}.wv-empty p{margin:0;font-size:.86rem;line-height:1.7}.wv-banner{color:#8a5a12;background:#fdf6e8;border:1px solid #f0dfb8;border-radius:10px;align-items:flex-start;gap:9px;margin-bottom:16px;padding:10px 14px;font-size:.8rem;line-height:1.6;display:flex}.wv-banner svg{flex-shrink:0;margin-top:1px}.wv-draftbar{color:#2c4a72;background:#eef3fb;border:1px solid #c8d8f0;border-radius:10px;flex-wrap:wrap;align-items:center;gap:10px;margin:16px 16px 0;padding:10px 14px;font-size:.8rem;line-height:1.6;display:flex}.wv-draftbar-tag{color:#fff;background:#2c4a72;border-radius:7px;flex:none;align-items:center;gap:5px;padding:3px 9px;font-size:.72rem;font-weight:700;display:inline-flex}.wv-draftbar-text{flex:1;min-width:220px}.wv-draftbar-actions{align-items:center;gap:10px;margin-left:auto;display:flex}.wv-draftbar-error{color:#a63c28;font-weight:600}.wv-draftbar-publish{background:var(--wv-ink,#1f2b24);color:#fff;cursor:pointer;border:0;border-radius:8px;flex:none;align-items:center;gap:6px;padding:9px 14px;font-size:.8rem;font-weight:650;display:inline-flex}@media (hover:hover){.wv-draftbar-publish:hover:not(:disabled){background:#2c3932}}.wv-draftbar-publish:disabled{opacity:.6;cursor:default}.wv-spin{animation:.8s linear infinite wv-spin}@keyframes wv-spin{to{transform:rotate(360deg)}}.wv-library{flex:1;grid-template-columns:218px minmax(0,1fr);align-items:start;gap:18px;padding:12px 18px 18px;display:grid}.wv-side{top:calc(var(--wv-topbar-h) + 12px);flex-direction:column;gap:14px;display:flex;position:sticky}.wv-side-title{align-items:center;gap:8px;margin:0 0 14px;font-size:.92rem;font-weight:700;display:flex}.wv-side-title svg{color:var(--wv-brand)}.wv-stats{padding:18px}.wv-stats-row{text-align:center;grid-template-columns:repeat(3,1fr);gap:6px;display:grid}.wv-stats-row button{background:0 0;border:0;flex-direction:column;align-items:center;gap:5px;padding:0;display:flex}.wv-stats-row strong{letter-spacing:-.05em;color:var(--wv-ink);font-size:1.72rem;font-weight:750;line-height:1}.wv-stats-row button.is-active strong{color:var(--wv-brand)}.wv-stats-row span{color:var(--wv-muted);font-size:.74rem}.wv-stats-row i{background:0 0;border-radius:2px;width:22px;height:2px;display:block}.wv-stats-row button.is-active i{background:var(--wv-brand)}.wv-calendar{padding:14px 16px 16px}.wv-calendar-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.wv-calendar-head strong{letter-spacing:-.01em;font-size:.88rem}.wv-calendar-head button{border:1px solid var(--wv-border);background:var(--wv-surface);width:26px;height:26px;color:var(--wv-muted);border-radius:7px;place-items:center;display:grid}@media (hover:hover){.wv-calendar-head button:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-calendar-grid{text-align:center;grid-template-columns:repeat(7,1fr);gap:3px;display:grid}.wv-calendar-grid .wv-weekday{color:var(--wv-faint);padding:4px 0 8px;font-size:.64rem}.wv-calendar-day{aspect-ratio:1;color:var(--wv-ink);border-radius:50%;place-items:center;font-size:.74rem;display:grid;position:relative}.wv-calendar-day.is-muted{color:#cbd5cf}.wv-calendar-day.is-studied{background:var(--wv-brand-soft);color:var(--wv-brand-text);font-weight:650}.wv-calendar-day.is-today{background:var(--wv-brand);color:#fff;font-weight:700}.wv-notice{padding:14px 16px}.wv-notice-head{align-items:center;gap:8px;margin-bottom:12px;font-size:.84rem;font-weight:700;display:flex}.wv-notice-head svg{color:var(--wv-brand)}.wv-notice-card{background:var(--wv-brand-softer);border:1px solid var(--wv-brand-soft);color:#5c5a4e;border-radius:10px;padding:12px;font-size:.78rem;line-height:1.65}.wv-notice-card strong{color:var(--wv-brand-text);margin-bottom:4px;display:block}.wv-notice-card time{color:var(--wv-faint);margin-top:8px;font-size:.7rem;display:block}.wv-main{flex-direction:column;gap:8px;min-width:0;display:flex}.wv-toolbar{flex-wrap:wrap;align-items:center;gap:10px;padding:12px 14px;display:flex}.wv-search{background:var(--wv-surface-alt);border:1px solid var(--wv-border);min-width:220px;color:var(--wv-faint);border-radius:10px;flex:1;align-items:center;gap:9px;padding:8px 12px;display:flex}.wv-search:focus-within{border-color:var(--wv-brand);background:var(--wv-surface);box-shadow:0 0 0 3px var(--wv-brand-soft)}.wv-search input{min-width:0;color:var(--wv-ink);background:0 0;border:0;outline:0;flex:1;font-size:.88rem}.wv-search input::placeholder{color:var(--wv-faint)}.wv-search-clear{color:var(--wv-faint);background:0 0;border:0;place-items:center;padding:2px;display:grid}.wv-filter{position:relative}.wv-filter-btn{border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-ink);white-space:nowrap;border-radius:10px;align-items:center;gap:6px;padding:8px 12px;font-size:.82rem;font-weight:600;display:flex}@media (hover:hover){.wv-filter-btn:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-filter-btn.is-on{border-color:var(--wv-brand);background:var(--wv-brand-softer);color:var(--wv-brand-text)}.wv-filter-btn svg:last-child{color:var(--wv-faint)}.wv-filter-menu{background:var(--wv-surface);border:1px solid var(--wv-border);min-width:170px;max-height:320px;box-shadow:var(--wv-shadow-lg);z-index:50;border-radius:12px;padding:6px;position:absolute;top:calc(100% + 6px);left:0;overflow-y:auto}.wv-filter-menu button{text-align:left;width:100%;color:var(--wv-ink);background:0 0;border:0;border-radius:8px;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;font-size:.83rem;display:flex}@media (hover:hover){.wv-filter-menu button:hover{background:var(--wv-brand-softer)}}.wv-filter-menu button.is-on{color:var(--wv-brand-text);background:var(--wv-brand-soft);font-weight:650}.wv-count{color:var(--wv-muted);white-space:nowrap;margin-left:auto;font-size:.8rem}.wv-count b{color:var(--wv-ink)}.wv-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.wv-video-card{background:var(--wv-surface);border:1px solid var(--wv-border);border-radius:var(--wv-radius);color:inherit;flex-direction:column;transition:box-shadow .18s,transform .18s;display:flex;overflow:hidden}@media (hover:hover){.wv-video-card:hover{box-shadow:var(--wv-shadow);transform:translateY(-2px)}}.wv-cover{aspect-ratio:16/9;background:#ece7dc;position:relative;overflow:hidden}.wv-cover img{object-fit:cover;width:100%;height:100%;display:block;position:absolute;top:0;bottom:0;left:0;right:0}.wv-cover-duration{color:#fff;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172ab8;border-radius:6px;padding:3px 8px;font-size:.72rem;font-weight:600;position:absolute;bottom:9px;right:9px}.wv-cover-flag{gap:5px;display:flex;position:absolute;top:9px;left:9px}.wv-cover-fav{width:30px;height:30px;color:var(--wv-muted);opacity:0;background:#ffffffe6;border:0;border-radius:50%;place-items:center;transition:opacity .16s,color .16s;display:grid;position:absolute;top:8px;right:8px}@media (hover:hover){.wv-video-card:hover .wv-cover-fav,.wv-cover-fav.is-on{opacity:1}}.wv-cover-fav.is-on{color:var(--wv-danger)}.wv-video-body{flex-direction:column;flex:1;gap:8px;padding:13px 14px 15px;display:flex}.wv-video-body h3{letter-spacing:-.02em;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.98rem;font-weight:700;line-height:1.45;display:-webkit-box;overflow:hidden}.wv-video-desc{color:var(--wv-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;min-height:2.56em;margin:0;font-size:.79rem;line-height:1.6;display:-webkit-box;overflow:hidden}.wv-video-meta{color:var(--wv-muted);flex-wrap:wrap;align-items:center;gap:6px;font-size:.75rem;display:flex}.wv-creator{color:var(--wv-ink);align-items:center;gap:5px;font-size:.75rem;font-weight:600;display:inline-flex}.wv-creator svg{color:var(--wv-brand)}.wv-video-foot{border-top:1px solid var(--wv-divider);justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:10px;display:flex}.wv-video-foot time{color:var(--wv-faint);font-size:.74rem}.wv-progress-dot{color:var(--wv-brand-text);align-items:center;gap:4px;font-size:.72rem;font-weight:600;display:inline-flex}.wv-learn{--wv-learn-pad-x:16px;flex:1;grid-template-columns:minmax(0,775px) minmax(320px,1fr);align-items:start;gap:12px;padding:12px 16px 16px;display:grid}.wv-learn.is-cards-open{grid-template-columns:minmax(0,1fr) minmax(320px,.62fr) minmax(300px,.58fr)}.wv-player-col{flex-direction:column;gap:8px;min-width:0;display:flex}.wv-player-head{justify-content:space-between;align-items:center;gap:14px;padding:12px 14px;display:flex}.wv-player-head-left{align-items:center;gap:10px;min-width:0;display:flex}.wv-icon-btn{border:1px solid var(--wv-border);background:var(--wv-surface);width:30px;height:30px;color:var(--wv-ink);border-radius:8px;flex-shrink:0;place-items:center;display:grid}@media (hover:hover){.wv-icon-btn:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-player-head h1{letter-spacing:-.02em;white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:1rem;font-weight:700;overflow:hidden}.wv-player-meta{color:var(--wv-muted);white-space:nowrap;gap:14px;font-size:.78rem;display:flex}.wv-player-stage{border-radius:var(--wv-radius);aspect-ratio:16/9;background:#000;position:relative;overflow:hidden}.wv-player-stage video{object-fit:contain;background:#000;width:100%;height:100%;display:block;position:absolute;top:0;bottom:0;left:0;right:0}.wv-player-poster{object-fit:cover;pointer-events:none;z-index:1;width:100%;height:100%;position:absolute;top:0;bottom:0;left:0;right:0}.wv-player-diag{z-index:9;color:#7cf;white-space:pre-wrap;pointer-events:none;background:#000000c7;border-radius:8px;max-width:calc(100% - 12px);padding:6px 8px;font:10px/1.5 ui-monospace,monospace;position:absolute;top:6px;left:6px}.wv-controls{opacity:0;z-index:2;background:linear-gradient(#0000,#000000b8);padding:26px 12px 10px;transition:opacity .2s;position:absolute;bottom:0;left:0;right:0}@media (hover:hover){.wv-player-stage:hover .wv-controls,.wv-player-stage.is-paused .wv-controls,.wv-controls:focus-within{opacity:1}}.wv-progress{cursor:pointer;touch-action:none;border-radius:6px;height:28px;margin-bottom:0;position:relative}.wv-progress:focus-visible{outline:2px solid var(--wv-brand);outline-offset:2px}.wv-progress:before{content:"";background:#ffffff47;border-radius:3px;height:5px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.wv-progress-fill{background:var(--wv-brand);border-radius:3px;height:5px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.wv-progress-knob{background:#fff;border-radius:50%;width:12px;height:12px;transition:width .12s,height .12s;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 1px 4px #0006}.wv-progress.is-dragging .wv-progress-knob{width:16px;height:16px}.wv-controls-row{color:#fff;align-items:center;gap:8px;display:flex}.wv-controls-row button{color:#fff;opacity:.88;background:0 0;border:0;border-radius:8px;place-items:center;width:32px;height:32px;display:grid}@media (hover:hover){.wv-controls-row button:hover{opacity:1;background:#ffffff29}}.wv-time{font-variant-numeric:tabular-nums;opacity:.9;margin-left:2px;font-size:.76rem}.wv-speed{color:#fff;background:#ffffff29;border:0;border-radius:7px;margin-left:auto;padding:5px 9px;font-size:.75rem;font-weight:600}.wv-speed-menu{background:#111827f0;border-radius:10px;flex-direction:column;gap:2px;min-width:84px;padding:5px;display:flex;position:absolute;bottom:62px;right:12px}.wv-speed-menu button{color:#e5e7eb;text-align:left;background:0 0;border:0;border-radius:6px;padding:6px 10px;font-size:.78rem}@media (hover:hover){.wv-speed-menu button:hover,.wv-speed-menu button.is-on{background:var(--wv-brand);color:#fff}}.wv-description{padding:14px 16px}.wv-description-head{align-items:center;gap:7px;margin-bottom:8px;font-size:.84rem;font-weight:700;display:flex}.wv-description p{color:var(--wv-muted);margin:0;font-size:.82rem;line-height:1.75}.wv-subs{min-height:0;max-height:calc(100vh - var(--wv-topbar-h) - 32px);top:calc(var(--wv-topbar-h) + 16px);flex-direction:column;display:flex;position:sticky;overflow:hidden}.wv-subs-head{position:relative}.wv-subs-head h2{white-space:nowrap}.wv-login-short{display:none}.wv-subs-head{border-bottom:1px solid var(--wv-divider);justify-content:space-between;align-items:center;gap:10px;padding:13px 14px;display:flex}.wv-subs-head h2{margin:0;font-size:.92rem;font-weight:700}.wv-subs-head .wv-tools-row{gap:2px;display:flex}.wv-subs-head .wv-toolbar-tool{border-radius:8px;flex:none;justify-content:center;width:30px;height:30px;padding:0}.wv-subs-head .wv-toolbar-tool em{display:none}.wv-popover{background:var(--wv-surface);border:1px solid var(--wv-border);box-shadow:var(--wv-shadow-lg);z-index:70;border-radius:12px;min-width:168px;margin-top:6px;padding:6px;position:absolute;top:100%;right:0}.wv-popover button{text-align:left;width:100%;color:var(--wv-ink);background:0 0;border:0;border-radius:8px;align-items:center;gap:9px;padding:8px 10px;font-size:.83rem;display:flex}@media (hover:hover){.wv-popover button:hover{background:var(--wv-brand-softer)}}.wv-popover button.is-on{color:var(--wv-brand-text);background:var(--wv-brand-soft);font-weight:650}.wv-popover-label{color:var(--wv-faint);padding:6px 10px 2px;font-size:.7rem;font-weight:600}.wv-sub-list{scroll-behavior:smooth;flex:1;padding:6px;overflow-y:auto}.wv-sub{border:1px solid #0000;border-radius:10px;grid-template-columns:46px minmax(0,1fr) 30px;align-items:start;gap:6px;padding:11px 10px;transition:background .15s;display:grid}@media (hover:hover){.wv-sub:hover{background:var(--wv-surface-alt)}}.wv-sub.is-active{background:var(--wv-highlight-bg);border-color:#f3c4b0}.wv-sub .wv-sub-time{color:var(--wv-faint);font-variant-numeric:tabular-nums;text-align:left;background:0 0;border:0;padding-top:2px;font-size:.82rem}.wv-sub-body{text-align:left;background:0 0;border:0;min-width:0;padding:0}.wv-sub-en{color:var(--wv-ink);font-size:.94rem;font-weight:500;line-height:1.65;display:block}.wv-sub-zh{color:var(--wv-muted);margin-top:5px;font-size:.82rem;line-height:1.6;display:block}.wv-sub.is-hide-zh .wv-sub-zh{visibility:hidden}.wv-sub.is-hide-en .wv-sub-en{filter:blur(5px);-webkit-user-select:none;user-select:none}.wv-fav{width:30px;height:30px;color:var(--wv-border-strong);background:0 0;border:0;border-radius:8px;place-items:center;display:grid}@media (hover:hover){.wv-fav:hover{color:var(--wv-brand);background:var(--wv-brand-softer)}}.wv-fav.is-on{color:var(--wv-highlight-border)}.wv-word,.wv-phrase{font:inherit;cursor:pointer;border:0;border-radius:4px;padding:0 2px;transition:background .14s}.wv-word{background:var(--wv-word-bg);color:var(--wv-word-ink);box-shadow:inset 0 -1px #b83a2252}.wv-phrase{background:var(--wv-phrase-bg);color:var(--wv-phrase-ink);box-shadow:inset 0 -1px #8a5a1252}.wv-word:hover,.wv-phrase:hover{filter:brightness(.95)}.wv-word.is-target,.wv-phrase.is-target{outline:2px solid var(--wv-highlight-border);outline-offset:1px}.wv-word-overlay{z-index:90;background:#0f172a29;place-items:center;padding:20px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.wv-word-popup{background:var(--wv-surface);border-radius:var(--wv-radius-lg);box-shadow:var(--wv-shadow-lg);width:min(420px,100%);padding:22px 22px 16px;position:relative}.wv-word-popup-close{color:var(--wv-faint);background:0 0;border:0;border-radius:8px;place-items:center;width:28px;height:28px;display:grid;position:absolute;top:12px;right:12px}@media (hover:hover){.wv-word-popup-close:hover{background:var(--wv-sand);color:var(--wv-ink)}}.wv-word-popup h3{letter-spacing:-.03em;flex-wrap:wrap;align-items:baseline;gap:9px;margin:0;font-size:1.5rem;font-weight:700;display:flex}.wv-word-popup h3 em{color:var(--wv-muted);font-size:.82rem;font-style:normal;font-weight:500}.wv-word-speak{border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-brand);vertical-align:middle;border-radius:50%;place-items:center;width:30px;height:30px;display:inline-grid}@media (hover:hover){.wv-word-speak:hover{background:var(--wv-brand-soft)}}.wv-word-pos{color:var(--wv-ink);margin:12px 0 0;font-size:.94rem;line-height:1.6}.wv-word-pos b{color:var(--wv-muted);margin-right:6px;font-weight:600}.wv-word-syn{color:var(--wv-muted);margin:7px 0 0;font-size:.86rem}.wv-word-example{background:var(--wv-brand-softer);border-left:3px solid var(--wv-brand);border-radius:0 10px 10px 0;margin:15px 0 0;padding:12px 14px}.wv-word-example strong{color:var(--wv-ink);font-size:.88rem;font-weight:600;line-height:1.65;display:block}.wv-word-example span{color:var(--wv-muted);margin-top:6px;font-size:.8rem;display:block}.wv-word-popup-foot{border-top:1px solid var(--wv-divider);justify-content:space-between;align-items:center;gap:10px;margin-top:16px;padding-top:13px;display:flex}.wv-word-jump{color:var(--wv-brand-text);background:0 0;border:0;align-items:center;gap:5px;padding:0;font-size:.8rem;font-weight:650;display:inline-flex}.wv-cards-panel{max-height:calc(100vh - var(--wv-topbar-h) - 32px);top:calc(var(--wv-topbar-h) + 16px);flex-direction:column;display:flex;position:sticky;overflow:hidden}.wv-cards-head{border-bottom:1px solid var(--wv-divider);justify-content:space-between;align-items:center;gap:10px;padding:13px 14px;display:flex}.wv-cards-head h2{margin:0;font-size:.92rem;font-weight:700}.wv-card-filters{border-bottom:1px solid var(--wv-divider);flex-wrap:wrap;align-items:center;gap:5px;padding:10px 12px;display:flex}.wv-pill{border:1px solid var(--wv-border);background:var(--wv-surface);border-radius:var(--wv-chip);color:var(--wv-muted);white-space:nowrap;padding:5px 11px;font-size:.75rem;font-weight:600}@media (hover:hover){.wv-pill:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-pill.is-on{background:var(--wv-brand);border-color:var(--wv-brand);color:#fff}.wv-pill-count{opacity:.72;margin-left:4px;font-weight:500}.wv-hide-zh{color:var(--wv-muted);background:0 0;border:0;align-items:center;gap:5px;margin-left:auto;font-size:.75rem;font-weight:600;display:inline-flex}.wv-hide-zh.is-on{color:var(--wv-brand-text)}.wv-card-list{flex-direction:column;gap:10px;padding:12px;display:flex;overflow-y:auto}.wv-flash{border:1px solid var(--wv-border);border-radius:var(--wv-radius);background:var(--wv-surface);padding:14px}.wv-flash h3{letter-spacing:-.02em;flex-wrap:wrap;align-items:center;gap:7px;margin:0;font-size:1.15rem;font-weight:700;display:flex}.wv-flash-phonetic{color:var(--wv-faint);margin:4px 0 0;font-size:.78rem}.wv-flash-pos{margin:10px 0 0;font-size:.86rem;line-height:1.6}.wv-flash-pos b{color:var(--wv-muted);margin-right:5px;font-weight:600}.wv-flash-syn{color:var(--wv-muted);margin:5px 0 0;font-size:.8rem}.wv-flash-example{background:var(--wv-brand-softer);border-left:3px solid var(--wv-brand);border-radius:0 9px 9px 0;margin:11px 0 0;padding:10px 12px}.wv-flash-example strong{font-size:.82rem;font-weight:600;line-height:1.6;display:block}.wv-flash-example span{color:var(--wv-muted);margin-top:5px;font-size:.76rem;display:block}.wv-flash.is-hide-zh .wv-flash-pos b,.wv-flash.is-hide-zh .wv-flash-pos span,.wv-flash.is-hide-zh .wv-flash-example span,.wv-flash.is-hide-zh .wv-flash-syn{filter:blur(5px);-webkit-user-select:none;user-select:none}.wv-flash-foot{border-top:1px solid var(--wv-divider);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:12px;padding-top:10px;display:flex}.wv-flash-actions{align-items:center;gap:4px;margin-left:auto;display:flex}.wv-mark{border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-muted);white-space:nowrap;border-radius:7px;padding:4px 9px;font-size:.72rem;font-weight:600}.wv-mark.is-known{background:var(--wv-brand-soft);border-color:var(--wv-brand);color:var(--wv-brand-text)}.wv-mark.is-unknown{color:#b91c1c;background:#fee2e2;border-color:#fca5a5}.wv-point-read{border:1px solid var(--wv-brand-soft);background:var(--wv-brand-softer);color:var(--wv-brand-text);white-space:nowrap;border-radius:7px;align-items:center;gap:4px;padding:4px 9px;font-size:.72rem;font-weight:650;display:inline-flex}.wv-sub-main{flex-direction:column;gap:8px;min-width:0;display:flex}.wv-cue-read{align-items:center;gap:8px;display:flex}.wv-cue-btn{color:#fff;border:0;border-radius:50%;flex:none;place-items:center;width:32px;height:32px;transition:filter .15s,box-shadow .15s;display:grid}.wv-cue-btn:hover:not(:disabled){filter:brightness(1.08)}.wv-cue-btn.is-on{box-shadow:0 0 0 3px var(--wv-cue-ring)}.wv-cue-btn--original{background:var(--wv-read-original);--wv-cue-ring:#1d6ff247}.wv-cue-btn--record{background:var(--wv-read-record);--wv-cue-ring:#f0353d47}.wv-cue-btn--clip{background:var(--wv-read-clip);--wv-cue-ring:#12b76a47}.wv-cue-btn:disabled{background:var(--wv-border-strong);opacity:.6;cursor:not-allowed}.wv-cue-read-badge{background:var(--wv-read-clip);color:#fff;border-radius:999px;margin-left:auto;padding:3px 11px;font-size:.72rem;font-weight:650}.wv-practice-knockout{fill:var(--wv-surface)}.wv-toolbar-tool.is-on .wv-practice-knockout{fill:var(--wv-brand-softer)}@media (hover:hover){.wv-toolbar-tool:hover .wv-practice-knockout{fill:var(--wv-brand-softer)}}.wv-cue-error{color:var(--wv-danger);margin:8px 10px 0;font-size:.78rem}.wv-saved{flex:1;grid-template-columns:260px minmax(0,1fr);align-content:start;align-items:start;gap:16px;padding:16px;display:grid}.wv-saved>.wv-page-head{grid-column:1/-1}.wv-video-list{max-height:calc(100vh - var(--wv-topbar-h) - 32px);top:calc(var(--wv-topbar-h) + 16px);flex-direction:column;display:flex;position:sticky;overflow:hidden}.wv-video-list-head{border-bottom:1px solid var(--wv-divider);padding:14px}.wv-video-list-head h2{margin:0 0 10px;font-size:.92rem}.wv-video-list-body{flex-direction:column;gap:3px;padding:8px;display:flex;overflow-y:auto}.wv-video-item{text-align:left;color:var(--wv-ink);background:0 0;border:0;border-radius:9px;justify-content:space-between;align-items:center;gap:8px;padding:9px 10px;font-size:.81rem;line-height:1.5;display:flex}@media (hover:hover){.wv-video-item:hover{background:var(--wv-brand-softer)}}.wv-video-item.is-on{background:var(--wv-brand);color:#fff}.wv-video-item.is-on span{color:#fff;background:#ffffff3d}.wv-video-item span{background:var(--wv-brand-soft);color:var(--wv-brand-text);border-radius:6px;flex-shrink:0;padding:2px 6px;font-size:.68rem;font-weight:700}.wv-saved-main{flex-direction:column;gap:14px;min-width:0;display:flex}.wv-saved-list{flex-direction:column;gap:12px;display:flex}.wv-saved-item{border:1px solid var(--wv-border);border-radius:var(--wv-radius);background:var(--wv-surface);overflow:hidden}.wv-saved-sentence{padding:14px 16px 12px}.wv-saved-sentence h3{color:var(--wv-ink);margin:0;font-size:1rem;line-height:1.65}.wv-saved-sentence p{color:var(--wv-muted);margin:6px 0 0;font-size:.86rem;line-height:1.6}.wv-saved-meta{justify-content:space-between;align-items:center;gap:10px;margin-top:10px;display:flex}.wv-saved-word{border-top:1px solid var(--wv-divider);border-left:3px solid var(--wv-brand-soft);background:var(--wv-surface-alt);flex-direction:column;gap:6px;padding:9px 16px 9px 13px;display:flex}.wv-saved-word-row{align-items:center;gap:10px;display:flex}.wv-saved-word-main{flex-wrap:wrap;flex:1;align-items:baseline;gap:8px;min-width:0;display:flex}.wv-saved-word-main strong{color:var(--wv-brand-text);font-size:.94rem}.wv-saved-word-main em{background:var(--wv-brand-soft);color:var(--wv-brand-text);border-radius:99px;padding:1px 7px;font-size:.68rem;font-style:normal}.wv-saved-word-main code{color:var(--wv-faint);font-size:.72rem}.wv-saved-word-main span{color:var(--wv-muted);font-size:.8rem}.wv-syn{background:var(--wv-brand-softer);border-radius:12px;flex-direction:column;gap:8px;margin-top:12px;padding:11px 13px;display:flex}.wv-syn.is-compact{border:1px dashed var(--wv-border);background:0 0;gap:5px;margin-top:2px;padding:8px 10px}.wv-syn-row{align-items:baseline;gap:9px;display:flex}.wv-syn-head{color:var(--wv-muted);flex-wrap:wrap;align-items:baseline;gap:7px;margin:0 0 1px;font-size:.74rem;font-weight:700;display:flex}.wv-syn-head span{color:var(--wv-faint);font-size:.7rem;font-weight:400}.wv-syn.is-compact .wv-syn-head{font-size:.7rem}.wv-syn.is-compact .wv-syn-head span{font-size:.66rem}.wv-syn-band{letter-spacing:.02em;min-width:52px;color:var(--wv-brand-text);flex:none;font-size:.7rem;font-weight:800}.wv-syn-list{flex-wrap:wrap;gap:6px 10px;min-width:0;margin:0;padding:0;list-style:none;display:flex}.wv-syn-list li{color:var(--wv-ink);font-size:.86rem;line-height:1.5}.wv-syn.is-compact .wv-syn-list li{font-size:.8rem}.wv-syn-stale{border:1px solid var(--wv-border-strong);color:var(--wv-faint);border-radius:99px;flex:none;align-self:center;padding:1px 6px;font-size:.62rem;font-style:normal}.wv-page{flex-direction:column;flex:1;gap:14px;width:100%;max-width:1180px;margin:0 auto;padding:18px;display:flex}.wv-page-head{align-items:center;gap:12px;display:flex}.wv-page-head h1{letter-spacing:-.025em;margin:0;font-size:1.16rem;font-weight:750}.wv-back{border:1px solid var(--wv-border);background:var(--wv-surface);width:32px;height:32px;color:var(--wv-ink);border-radius:9px;place-items:center;display:grid}@media (hover:hover){.wv-back:hover{border-color:var(--wv-brand);color:var(--wv-brand)}}.wv-tabs{gap:6px;padding:6px;display:inline-flex}.wv-tab{color:var(--wv-muted);background:0 0;border:0;border-radius:9px;padding:9px 18px;font-size:.85rem;font-weight:650}@media (hover:hover){.wv-tab:hover{color:var(--wv-ink)}}.wv-tab.is-on{background:var(--wv-brand);color:#fff}.wv-record-list{flex-direction:column;gap:10px;display:flex}.wv-record{background:var(--wv-surface);border:1px solid var(--wv-border);border-radius:var(--wv-radius);align-items:center;gap:14px;padding:14px 16px;display:flex}.wv-record-cover{aspect-ratio:16/9;background:#ece7dc;border-radius:9px;flex-shrink:0;width:108px;overflow:hidden}.wv-record-cover img{object-fit:cover;width:100%;height:100%;display:block}.wv-record-body{flex:1;min-width:0}.wv-record-body h3{margin:0 0 5px;font-size:.92rem;font-weight:650}.wv-record-body p{color:var(--wv-muted);margin:0;font-size:.78rem}.wv-record-badge{background:var(--wv-brand-soft);color:var(--wv-brand-text);border-radius:var(--wv-chip);white-space:nowrap;padding:4px 10px;font-size:.72rem;font-weight:700}.wv-record-progress{flex-shrink:0;width:108px}.wv-record-progress i{background:var(--wv-brand-soft);border-radius:3px;height:5px;display:block;overflow:hidden}.wv-record-progress i b{background:var(--wv-brand);height:100%;display:block}.wv-record-progress span{color:var(--wv-muted);text-align:right;margin-top:5px;font-size:.72rem;display:block}.wv-account{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:16px;display:grid}.wv-section{padding:20px}.wv-section h2{margin:0 0 16px;font-size:1rem;font-weight:700}.wv-field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.wv-field label{color:var(--wv-muted);font-size:.8rem;font-weight:600}.wv-field input{border:1px solid var(--wv-border-strong);background:var(--wv-surface);color:var(--wv-ink);border-radius:10px;outline:0;padding:10px 12px;font-size:.88rem}.wv-field input:focus{border-color:var(--wv-brand);box-shadow:0 0 0 3px var(--wv-brand-soft)}.wv-field input:disabled{background:var(--wv-sand);color:var(--wv-muted)}.wv-theme-row{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.wv-theme{border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-muted);border-radius:10px;flex-direction:column;align-items:center;gap:7px;padding:10px 8px;font-size:.76rem;font-weight:600;display:flex}.wv-theme.is-on{border-color:var(--wv-brand);color:var(--wv-brand-text);background:var(--wv-brand-softer)}.wv-theme i{border-radius:50%;width:22px;height:22px;display:block}.wv-steps{color:var(--wv-muted);margin:0;padding-left:20px;font-size:.82rem;line-height:1.9}.wv-steps b{color:var(--wv-ink)}@media (max-width:1180px){.wv-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wv-learn.is-cards-open{grid-template-columns:minmax(0,1.2fr) minmax(300px,1fr)}.wv-learn.is-cards-open .wv-cards-panel{grid-column:1/-1;max-height:none;position:static}}@media (max-width:940px){.wv-shell-hide-topbar-mobile .wv-topbar{display:none}:root{--wv-topbar-h:62px}.wv-brand{display:flex}.wv-topbar{height:auto;min-height:var(--wv-topbar-h);flex-wrap:nowrap;align-content:center;align-items:center;gap:0 6px;padding:8px 12px}.wv-nav{display:none}.wv-account-area{flex:none;order:2;margin-left:auto;display:flex;position:static}.wv-nav::-webkit-scrollbar{display:none}.wv-nav-tab{padding:8px 15px;font-size:.82rem}.wv-account-menu{top:calc(var(--wv-topbar-h) + 4px);right:12px}.wv-library,.wv-saved,.wv-account{grid-template-columns:minmax(0,1fr)}.wv-side,.wv-video-list,.wv-subs{max-height:none;position:static}.wv-subs{background:0 0;border:0;border-radius:0}.wv-player-stage{border-radius:0;width:100vw;margin-inline-start:calc(50% - 50vw);margin-inline-end:calc(50% - 50vw)}.wv-sub-list{flex-direction:column;gap:5px;max-height:60vh;padding:0 2px;display:flex}.wv-sub{background:var(--wv-surface);border:1px solid var(--wv-border);border-radius:14px;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"time fav""main main";gap:0 8px;padding:6px 14px 12px}.wv-sub-time{grid-area:time;justify-self:start}.wv-fav{grid-area:fav}.wv-sub-main{grid-area:main}.wv-sub.is-active{background:var(--wv-highlight-bg);border-color:#f3c4b0}.wv-sub-en{font-size:1.15rem;line-height:1.72}.wv-sub-zh{margin-top:8px;font-size:1rem;line-height:1.7}.wv-learn.is-subs-medium .wv-sub-en{font-size:1.02rem;line-height:1.62}.wv-learn.is-subs-medium .wv-sub-zh{margin-top:6px;font-size:.9rem;line-height:1.6}.wv-learn.is-subs-medium .wv-sub{padding-top:7px;padding-bottom:10px}.wv-learn.is-subs-small .wv-sub-en{font-size:.92rem;line-height:1.55}.wv-learn.is-subs-small .wv-sub-zh{margin-top:5px;font-size:.82rem;line-height:1.55}.wv-learn.is-subs-small .wv-sub{padding-top:6px;padding-bottom:9px}.wv-description,.wv-login-full{display:none}.wv-login-short{display:inline}.wv-admin-text{display:none}.wv-admin-entry{padding:0 9px}.wv-subs-head{display:none}.wv-icon-btn,.wv-fav,.wv-cover-fav,.wv-word-speak,.wv-back{width:38px;height:38px}.wv-sub-time,.wv-sub-body{min-height:38px}.wv-sub .wv-sub-time{align-items:center;min-height:30px;padding-top:0;font-size:.82rem;font-weight:600;display:inline-flex}.wv-fav{width:32px;height:32px}.wv-cue-btn{width:38px;height:38px}.wv-calendar-head button{width:36px;height:36px}.wv-hide-zh{padding:8px 4px}.wv-mark,.wv-point-read{padding:9px 11px}.wv-learn,.wv-learn.is-cards-open{grid-template-columns:minmax(0,1fr)}}@media (max-width:620px){.wv-library,.wv-learn,.wv-saved,.wv-page{padding:12px}.wv-grid{grid-template-columns:minmax(0,1fr)}.wv-theme-row{grid-template-columns:repeat(2,1fr)}.wv-record-cover,.wv-record-progress{display:none}}@media (hover:none){.wv-controls,.wv-cover-fav{opacity:1}}.wv-admin-entry{border-radius:var(--wv-chip);border:1px solid var(--wv-border-strong);background:var(--wv-surface);color:var(--wv-ink);white-space:nowrap;align-items:center;gap:5px;padding:7px 13px;font-size:.8rem;font-weight:650;display:inline-flex}@media (hover:hover){.wv-admin-entry:hover{border-color:var(--wv-brand);color:var(--wv-brand-text);background:var(--wv-brand-softer)}}.wv-locked-wrap{flex-direction:column;flex:1;align-items:stretch;gap:16px;padding:16px;display:flex}.wv-locked-wrap>.wv-icon-btn{align-self:flex-start}.wv-locked{gap:12px;width:100%;max-width:880px;margin:0 auto;padding:56px 32px}.wv-locked h3{color:var(--wv-ink);font-size:20px}.wv-locked>p{max-width:520px;line-height:1.7}.wv-locked-samples{border-top:1px solid var(--wv-divider);width:100%;margin-top:20px;padding-top:20px}.wv-locked-hint{margin-bottom:12px;font-size:13px}.wv-locked-list{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;display:grid}.wv-locked-item{border:1px solid var(--wv-border);border-radius:var(--wv-radius);background:var(--wv-surface);text-align:left;align-items:center;gap:10px;padding:8px;transition:border-color .15s;display:flex}@media (hover:hover){.wv-locked-item:hover{border-color:var(--wv-brand)}}.wv-locked-item img{object-fit:cover;border-radius:6px;flex-shrink:0;width:56px;height:40px}.wv-locked-item span{flex-direction:column;gap:2px;min-width:0;display:flex}.wv-locked-item b{color:var(--wv-ink);text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;overflow:hidden}.wv-locked-item em{color:var(--wv-muted);font-size:12px;font-style:normal}.wv-lock-chip{background:var(--wv-ink);color:var(--wv-sand);border-radius:999px;align-items:center;gap:4px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-flex}.wv-site-foot{text-align:center;padding:26px 18px 30px;display:block}.site-footer .wv-icp{grid-column:1/-1;margin-top:10px}.wv-icp{font-size:inherit;color:inherit;text-decoration:none}.wv-icp:hover{text-decoration:underline}@media (max-width:940px){.wv-side{order:2;display:none}.wv-side.is-open{display:flex}.wv-main{order:3}}.wv-mobile-controls{display:none}@media (max-width:940px){.wv-mobile-controls{z-index:55;padding:7px 12px calc(7px + env(safe-area-inset-bottom,0px));-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--wv-border);background:#fffdf8f7;display:block;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -6px 22px #23271e14}.wv-controls{display:none}.wv-learn{--wv-learn-pad-x:6px;padding:8px 6px 140px}.wv-library{padding-top:8px}.wv-library .wv-main{gap:8px}.wv-player-col{gap:0}.wv-learn{gap:8px}.wv-player-head{margin-left:calc(-1 * var(--wv-learn-pad-x));margin-right:calc(-1 * var(--wv-learn-pad-x));width:calc(100% + var(--wv-learn-pad-x) * 2);border-left:0;border-right:0;border-radius:0;padding:9px 12px}.wv-player-stage{margin-left:calc(-1 * var(--wv-learn-pad-x));margin-right:calc(-1 * var(--wv-learn-pad-x));width:calc(100% + var(--wv-learn-pad-x) * 2);border-radius:0}.wv-mc-times{color:var(--wv-muted);font-variant-numeric:tabular-nums;justify-content:space-between;margin-bottom:3px;font-size:.68rem;display:flex}.wv-mc-bar{cursor:pointer;touch-action:none;height:28px;position:relative}.wv-mc-bar:before{content:"";background:#ded8cc;border-radius:2px;height:4px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.wv-mc-fill{background:var(--wv-brand);border-radius:2px;height:4px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.wv-mc-knob{background:var(--wv-brand);border-radius:50%;width:13px;height:13px;transition:width .12s,height .12s;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 1px 4px #0000002e}.wv-mc-bar.is-dragging .wv-mc-knob{width:17px;height:17px}.wv-mc-row{justify-content:space-between;align-items:center;gap:6px;margin-top:2px;display:flex}.wv-mc-btn{color:var(--wv-ink);background:0 0;border:0;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:1px;min-width:48px;padding:4px 6px;display:inline-flex;position:relative}.wv-mc-btn>svg{width:29px;height:29px}.wv-mc-play>svg{width:26px;height:26px}.wv-mc-tools-btn>svg{width:24px;height:24px}.wv-mc-btn:active{background:var(--wv-brand-softer,#fff1ec)}.wv-mc-rate{color:var(--wv-muted);font-size:1.04rem;font-weight:800}.wv-mc-rate.is-on{color:var(--wv-brand-text);background:var(--wv-brand-softer,#fff1ec)}.wv-mc-skip{position:relative}.wv-mc-skip i{letter-spacing:-.02em;font-size:.6rem;font-style:normal;font-weight:800;position:absolute;top:50%;left:50%;transform:translate(-50%,-46%)}.wv-mc-play{background:var(--wv-brand);color:#fff;width:52px;min-width:52px;height:52px;box-shadow:none;border-radius:50%;flex-direction:row;padding:0}.wv-mc-play:active{background:var(--orange-dark)}.wv-mc-loop{color:var(--wv-muted)}.wv-mc-btn em{white-space:nowrap;font-size:.68rem;font-style:normal;font-weight:700;line-height:1.1}.wv-mc-loop.is-on{color:var(--wv-brand-text)}.wv-mc-menu{background:var(--wv-surface);border:1px solid var(--wv-border);min-width:190px;box-shadow:var(--wv-shadow-lg,0 18px 44px #18211c2e);border-radius:14px;flex-wrap:wrap;gap:4px;padding:8px;display:flex;position:absolute;bottom:calc(100% - 4px)}.wv-mc-menu button{color:var(--wv-ink);white-space:nowrap;background:0 0;border:0;border-radius:9px;padding:9px 12px;font-size:.82rem}.wv-mc-menu button.is-on{background:var(--wv-brand-softer,#fff1ec);color:var(--wv-brand-text);font-weight:700}.wv-mc-menu{left:0}.wv-mc-row>.wv-mc-loop~.wv-mc-menu,.wv-mc-menu[aria-label=循环播放]{left:auto;right:0}}.wv-toolbar-tool{color:var(--wv-muted);background:0 0;border:0;border-radius:12px;flex-direction:column;align-items:center;gap:5px;padding:11px 4px 9px;transition:background .15s,color .15s;display:flex}.wv-toolbar-tool em{white-space:nowrap;font-size:.72rem;font-style:normal;font-weight:700}@media (hover:hover){@media (hover:hover){@media (hover:hover){.wv-toolbar-tool:hover{background:var(--wv-brand-softer,#fff1ec);color:var(--wv-brand-text)}}}}.wv-toolbar-tool.is-on{background:var(--wv-brand-softer,#fff1ec);color:var(--wv-brand-text)}@media (max-width:940px){.wv-toolbar-tool{padding:10px 2px 8px}.wv-toolbar-tool em{font-size:.68rem}}@media (min-width:941px){.wv-tool-slot.wv-tool-subs-size{display:none}}.wv-learn-tools{position:relative}.wv-tools-row{grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;gap:2px;display:grid}@media (max-width:940px){.wv-mc-tools{background:var(--wv-surface);border-top:1px solid var(--wv-border);border-radius:18px 18px 0 0;padding:6px 8px 16px;position:absolute;bottom:calc(100% - 10px);left:0;right:0;box-shadow:0 -10px 30px #23271e1a}.wv-mc-tools .wv-popover{top:auto;bottom:calc(100% + 6px)}.wv-mc-btn{min-width:52px;padding:6px}.wv-mc-tools-btn{color:var(--wv-muted)}.wv-mc-tools-btn.is-on{color:var(--wv-brand-text)}}.wv-drawer-btn,.wv-drawer-scrim{display:none}@media (max-width:940px){.wv-drawer-btn{border:1px solid var(--wv-border);background:var(--wv-surface);width:42px;height:42px;color:var(--wv-ink);border-radius:13px;flex:none;order:-1;justify-content:center;align-items:center;display:inline-flex}.wv-drawer-btn:active{background:var(--wv-brand-softer,#fff1ec)}.wv-drawer-scrim{z-index:65;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#18211c59;display:block;position:fixed;top:0;bottom:0;left:0;right:0}.wv-side{z-index:66;width:min(320px,86vw);max-height:none;padding:18px 16px calc(24px + env(safe-area-inset-bottom,0px));background:var(--wv-bg,#f7f4ed);touch-action:pan-y;border-radius:0 20px 20px 0;transition:transform .24s;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;transform:translate(-102%);box-shadow:12px 0 40px #18211c2e}.wv-side.is-open{transform:translate(0)}.wv-library>.wv-side{grid-column:auto}}.wv-library.wv-no-side{grid-template-columns:minmax(0,1fr)}.wv-toolbar-row{flex:1;align-items:center;gap:10px;min-width:0;display:flex}.wv-toolbar-row .wv-search{flex:1;min-width:0}.wv-filter-toggle{border:1px solid var(--wv-border);background:var(--wv-surface);width:42px;height:42px;color:var(--wv-muted);border-radius:13px;flex:none;justify-content:center;align-items:center;display:none;position:relative}.wv-filter-toggle:active,.wv-filter-toggle.is-on{background:var(--wv-brand-softer,#fff1ec);color:var(--wv-brand-text);border-color:var(--wv-brand)}.wv-filter-toggle i{background:var(--wv-brand);color:#fff;border-radius:99px;place-items:center;min-width:17px;height:17px;padding:0 4px;font-size:.62rem;font-style:normal;font-weight:800;display:grid;position:absolute;top:-5px;right:-5px}.wv-side-links{display:none}@media (max-width:940px){.wv-side-links{padding:6px;display:block}.wv-side-link{color:var(--wv-ink);border-radius:10px;align-items:center;gap:10px;padding:13px 12px;font-size:.92rem;font-weight:600;text-decoration:none;display:flex}.wv-side-link+.wv-side-link{border-top:1px solid var(--wv-divider)}@media (hover:hover){.wv-side-link:hover{background:var(--wv-brand-softer);color:var(--wv-brand-text)}}.wv-side-link svg:last-child{color:var(--wv-faint);margin-left:auto}}@media (min-width:941px){.wv-toolbar-tool{position:relative}.wv-toolbar-tool[data-tip]:after{content:attr(data-tip);z-index:40;color:#fff;white-space:nowrap;opacity:0;pointer-events:none;background:#18211ceb;border-radius:8px;padding:5px 9px;font-size:.72rem;font-weight:500;line-height:1.4;transition:opacity .12s .15s;position:absolute;top:calc(100% + 6px);right:0}@media (hover:hover){.wv-toolbar-tool[data-tip]:hover:after{opacity:1}.wv-toolbar-tool[data-tip]:focus-visible:after{opacity:1}}}.wv-toolbar-filters{display:contents}.wv-reset{flex:none}.wv-reset:disabled{opacity:.45;cursor:default;color:var(--wv-faint)}@media (max-width:940px){.wv-filter-toggle{display:inline-flex}.wv-toolbar-row .wv-drawer-btn{order:0}.wv-toolbar-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:12px;display:none}.wv-toolbar-filters.is-open{display:grid}.wv-toolbar-filters>.wv-btn,.wv-toolbar-filters>.wv-count{grid-column:1/-1}}.wv-drawer-btn--ghost{pointer-events:none;background:0 0;border-color:#0000}@media (max-width:940px){.wv-toolbar{padding:10px}.wv-toolbar-row{gap:8px}.wv-drawer-btn,.wv-filter-toggle,.wv-drawer-btn--ghost{border-radius:12px;width:38px;height:38px}.wv-search{gap:7px;padding-left:11px}.wv-toolbar-row{margin-right:0}}.wv-sheet{z-index:80;background:var(--wv-bg,#f7f4ed);flex-direction:column;padding-top:8px;animation:.22s wv-sheet-in;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}@keyframes wv-sheet-in{0%{opacity:0;transform:translateY(3%)}to{opacity:1;transform:translateY(0)}}.wv-sheet-head{background:var(--wv-surface);border-radius:22px 22px 0 0;justify-content:center;align-items:center;padding:14px 16px 12px;display:flex;position:relative}.wv-sheet-head h2{letter-spacing:-.02em;margin:0;font-size:1.12rem;font-weight:800}.wv-sheet-close{border:1px solid var(--wv-border);background:var(--wv-surface);width:38px;height:38px;color:var(--wv-ink);border-radius:50%;place-items:center;display:grid;position:absolute;left:14px}.wv-sheet-count{color:var(--wv-muted);font-size:.84rem;position:absolute;right:16px}.wv-sheet-body{background:var(--wv-surface);flex:1;padding:6px 16px 20px;overflow-y:auto}.wv-sheet-group{margin-top:20px}.wv-sheet-group h3{color:var(--wv-ink);margin:0 0 10px;font-size:.95rem;font-weight:800}.wv-sheet-chips{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.wv-sheet-chips button{background:var(--wv-surface-alt,#f2efe7);color:#5c655e;white-space:nowrap;text-overflow:ellipsis;border:0;border-radius:10px;padding:11px 6px;font-size:.82rem;overflow:hidden}.wv-sheet-chips button.is-on{background:var(--wv-brand-softer,#d9efe2);color:var(--wv-brand-text,#1f7a4d);font-weight:700}.wv-sheet-foot{padding:12px 16px calc(14px + env(safe-area-inset-bottom,0px));background:var(--wv-surface);border-top:1px solid var(--wv-border);grid-template-columns:1fr 2fr;gap:10px;display:grid}.wv-sheet-foot button{border:0;border-radius:14px;height:48px;font-size:.98rem;font-weight:800}.wv-sheet-reset{background:var(--wv-surface-alt,#f2efe7);color:var(--wv-ink)}.wv-sheet-confirm{background:var(--wv-brand);color:#fff}.wv-sheet-confirm:active{background:var(--orange-dark,#d8442a)}@media (min-width:941px){.wv-sheet{display:none}}.wv-tool-slot{justify-content:center;min-width:0;display:flex;position:relative}.wv-tool-slot .wv-popover{max-width:calc(100vw - 24px);left:50%;right:auto;transform:translate(-50%)}.wv-tool-slot.is-right .wv-popover{left:auto;right:0;transform:none}.wv-back-top{right:18px;bottom:calc(22px + env(safe-area-inset-bottom,0px));z-index:50;background:var(--wv-brand);color:#fff;opacity:0;visibility:hidden;border:0;border-radius:50%;place-items:center;width:46px;height:46px;transition:opacity .2s,transform .2s,visibility .2s;display:grid;position:fixed;transform:translateY(8px);box-shadow:0 8px 22px #fa593e52}.wv-back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.wv-back-top:active{background:var(--orange-dark,#d8442a)}@media (max-width:940px){.wv-learn~.wv-back-top{bottom:calc(150px + env(safe-area-inset-bottom,0px))}body:has(.wv-mobile-controls) .wv-back-top{bottom:calc(150px + env(safe-area-inset-bottom,0px))}}@supports not (aspect-ratio:16 / 9){.wv-cover,.wv-player-stage,.wv-record-cover{height:0;padding-top:56.25%}.wv-record-cover{position:relative}.wv-record-cover img{position:absolute;top:0;bottom:0;left:0;right:0}.wv-calendar-day{min-height:34px}}.wv-live-actions{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.wv-live-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:start;gap:18px;display:grid}@media (max-width:900px){.wv-live-grid{grid-template-columns:minmax(0,1fr)}}.wv-live-search{height:40px}.wv-live-candidates,.wv-live-items{flex-direction:column;gap:6px;margin:12px 0 0;padding:0;list-style:none;display:flex;overflow-y:auto}.wv-live-candidates{max-height:58vh}.wv-live-items{max-height:52vh}.wv-live-candidates li,.wv-live-items li{border:1px solid var(--border);background:#fffdf8;border-radius:10px;align-items:center;gap:10px;padding:9px 10px;display:flex}.wv-live-candidate-main,.wv-live-item-main{flex:1;min-width:0}.wv-live-candidate-main strong,.wv-live-item-main strong{white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;font-weight:600;display:block;overflow:hidden}.wv-live-candidate-main small,.wv-live-item-main small{color:#8b8b7f;margin-top:3px;font-size:.72rem;display:block}.wv-live-add{border:1px solid var(--border);width:30px;height:30px;color:var(--wv-ink);background:#fff;border-radius:9px;flex:none;place-items:center;display:grid}.wv-live-add.is-picked{color:#4e7350;background:#eef3ea;border-color:#cfe0cc}.wv-live-index{text-align:center;font-variant-numeric:tabular-nums;color:#a09883;flex:none;width:22px;font-size:.78rem}.wv-live-item-actions{flex:none;gap:2px;display:flex}.wv-live-item-actions button{color:#6b7468;background:0 0;border:0;border-radius:8px;place-items:center;width:28px;height:28px;display:grid}.wv-live-item-actions button:disabled{opacity:.3}.wv-live-footer{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-top:14px;padding-top:14px;display:flex}.wv-live-footer-main{flex-direction:column;gap:6px;min-width:0;display:flex}.wv-live-toggle{border:1px solid var(--border);color:#6b7468;background:#fffdf8;border-radius:99px;align-items:center;gap:8px;width:max-content;padding:7px 12px 7px 9px;font-size:.8rem;font-weight:600;display:inline-flex}.wv-live-toggle.is-on{color:#4e7350;background:#eef3ea;border-color:#cfe0cc}.wv-live-toggle-dot{background:#dcd8cc;border-radius:99px;flex:none;width:30px;height:18px;transition:background .15s;position:relative}.wv-live-toggle-dot:after{content:"";background:#fff;border-radius:50%;width:14px;height:14px;transition:transform .15s;position:absolute;top:2px;left:2px}.wv-live-toggle.is-on .wv-live-toggle-dot{background:#7fa87c}.wv-live-toggle.is-on .wv-live-toggle-dot:after{transform:translate(12px)}.wv-kw{border-radius:4px;transition:background-color .12s linear,color .12s linear}.wv-kw.is-current{background:var(--wv-brand-soft);color:var(--wv-brand-text);box-shadow:inset 0 -2.5px 0 var(--wv-brand)}