@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap";@import"https://fonts.googleapis.com/css2?family=Liu+Jian+Mao+Cao&family=Long+Cang&family=Ma+Shan+Zheng&family=Zhi+Mang+Xing&display=swap";.demo-banner[data-v-7e786e98]{background:var(--accent-color);color:#fff;padding:8px 16px;font-size:.85rem;display:flex;align-items:center;justify-content:center;gap:12px;flex-shrink:0}.demo-banner a[data-v-7e786e98]{color:#fff;font-weight:600;text-decoration:underline}.dismiss-btn[data-v-7e786e98]{background:none;border:none;color:#fff;font-size:1.2rem;cursor:pointer;padding:0 4px;opacity:.8;line-height:1}.dismiss-btn[data-v-7e786e98]:hover{opacity:1}.srs-sync[data-v-d947a18f]{position:fixed;right:8px;top:56px;display:flex;align-items:center;gap:4px;padding:2px 6px;font-size:10px;line-height:1;font-variant-numeric:tabular-nums;color:var(--text-secondary, #888);background:#00000008;border-radius:8px;pointer-events:none;opacity:0;transition:opacity .25s ease;z-index:100}.srs-sync.visible[data-v-d947a18f]{opacity:.6}.srs-sync-dot[data-v-d947a18f]{width:6px;height:6px;border-radius:50%;background:var(--text-secondary, #888)}.due-badge[data-v-2fb374ba]{min-width:15px;height:15px;display:inline-flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--accent-color) 18%,var(--paper-card, var(--card-bg)));color:color-mix(in srgb,var(--accent-color) 72%,var(--text-muted));font-size:.56rem;font-weight:760;padding:0 4px;border:1px solid color-mix(in srgb,var(--accent-color) 22%,var(--paper-rail, var(--card-bg)));border-radius:999px;position:absolute;top:3px;right:-4px;line-height:1.2;box-shadow:0 1px 2px #502d1914;z-index:2}.auth-link[data-v-2fb374ba]{font-size:.8rem;padding:4px 10px;border:1px solid var(--border-color);border-radius:5px;color:var(--text-color);white-space:nowrap;text-decoration:none;transition:border-color .15s,color .15s}.auth-link[data-v-2fb374ba]:hover{border-color:var(--accent-color);color:var(--accent-color)}.mobile-user-btn[data-v-2fb374ba]{width:32px;height:32px;border-radius:50%;background:var(--accent-color);color:#fff;font-size:.75rem;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;text-decoration:none}:root{--bg-color: #f5f5f5;--card-bg: #ffffff;--text-color: #333;--text-muted: #666;--text-dim: #999;--text-secondary: #888;--text-faint: #b2bec3;--accent-color: #c53929;--accent-hover: #a82d20;--ink-color: #1a1a1a;--border-color: #d6d6d6;--border-strong: #ccc;--border-subtle: #eee;--border-soft: var(--border-strong);--border-light: var(--border-subtle);--card-hover-border: color-mix(in srgb, var(--border-strong) 42%, var(--accent-color));--card-hover-offset: -1px;--card-hover-transform: translateY(var(--card-hover-offset));--control-hover-border: color-mix(in srgb, var(--border-strong) 72%, var(--accent-color));--sidebar-inner-border: #d6d6d6;--scrollbar-thumb: var(--border-strong);--scrollbar-thumb-hover: var(--text-faint);--scrollbar-track: transparent;--bg-subtle: #f8f9fa;--bg-hover: #f0f0f0;--sidebar-bg: #fafafa;--sidebar-section-header-height: 40px;--sidebar-section-header-content-offset: 4px;--sidebar-section-divider-gap: 4px;--sidebar-section-content-padding-top: 12px;--sidebar-section-content-padding-bottom: 8px;--sidebar-panel-padding: 16px;--sidebar-panel-padding-top: 8px;--sidebar-card-gutter: 0px;--card-shadow: 0 1px 2px rgba(0, 0, 0, .04);--card-shadow-hover: 0 0 0 1px color-mix(in srgb, var(--card-hover-border) 20%, transparent), 0 3px 10px rgba(0, 0, 0, .09);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .12);--transition-fast: .15s;--transition-normal: .2s;--transition-slow: .3s;--btn-secondary-bg: #f5f3f0;--btn-secondary-hover: #e5e5e5;--font-main: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-hanzi: "Noto Sans SC", "Microsoft YaHei", sans-serif;--font-handwriting-1: "Liu Jian Mao Cao", cursive;--font-handwriting-2: "Ma Shan Zheng", cursive;--font-handwriting-3: "Long Cang", cursive;--font-handwriting-4: "Zhi Mang Xing", cursive;--know-1: #e74c3c;--know-2: #f39c12;--know-3: #f1c40f;--know-4: #27ae60;--know-5: #3498db;--know-bg-1: #fff5f5;--know-bg-2: #fffbf0;--know-bg-3: #fffff0;--know-bg-4: #e6fffa;--know-bg-5: #e3f2fd;--hsk-1: #27ae60;--hsk-2: #2ecc71;--hsk-3: #3498db;--hsk-4: #9b59b6;--hsk-5: #f39c12;--hsk-6: #e67e22;--hsk-7-9: #e74c3c;--srs-new: #74b9ff;--srs-learning: #fdcb6e;--srs-young: #00b894;--srs-mature: #0984e3;--color-success: #27ae60;--color-warning: #f39c12;--color-error: #e74c3c;--color-info: #3498db;--badge-padding: 2px 6px;--badge-radius: 4px;--card-radius: 6px}body.theme-warm-paper{--bg-color: #ede8df;--card-bg: #fdfaf4;--paper-card: #fdfaf4;--paper-card-strong: #faf4ea;--paper-stage: #f7f4ee;--paper-sidebar: #f4f0e9;--paper-sidebar-deep: #e8e0d6;--paper-rail: #f9f4eb;--text-color: #302923;--text-muted: #6b5f54;--text-dim: #9d8f7d;--text-secondary: #7c6f61;--text-faint: #b9aa96;--accent-color: #aa4638;--accent-hover: #8d3329;--ink-color: #251f1a;--border-color: #d8cbb7;--border-strong: #c6b8a1;--border-subtle: #f1e7d9;--border-soft: var(--border-color);--border-light: var(--border-color);--card-hover-border: #aa745f;--card-hover-offset: -1px;--card-hover-transform: translateY(var(--card-hover-offset));--control-hover-border: #b89378;--sidebar-inner-border: var(--border-color);--scrollbar-thumb: #d2c6b4;--scrollbar-thumb-hover: #c3b49d;--scrollbar-track: #f1ece4;--scrollbar-track-center: #f2eee7;--scrollbar-track-sidebar: #eee8de;--bg-subtle: #f6f0e7;--bg-hover: #f4edde;--sidebar-bg: var(--paper-sidebar);--know-1: #df5a45;--know-2: #e88430;--know-3: #f0bf2f;--know-4: #2fad72;--know-5: #3297d3;--know-bg-1: #fff0eb;--know-bg-2: #fff1dc;--know-bg-3: #fff7ca;--know-bg-4: #e2f7ec;--know-bg-5: #e2f3fb;--hsk-1: #2ea65f;--hsk-2: #34c16e;--hsk-3: #3a92ce;--hsk-4: #965aac;--hsk-5: #e59619;--hsk-6: #da7b27;--hsk-7-9: #db4e3e;--card-shadow: 0 1px 0 rgba(255, 255, 255, .78) inset, 0 1px 0 rgba(72, 49, 28, .11), 0 3px 8px -7px rgba(72, 49, 28, .28);--card-shadow-hover: 0 1px 0 rgba(255, 255, 255, .82) inset, 0 0 0 1px rgba(170, 116, 95, .18), 0 2px 2px rgba(72, 49, 28, .1), 0 10px 22px -16px rgba(72, 49, 28, .4);--shadow-sm: 0 1px 0 rgba(255, 255, 255, .74) inset, 0 1px 0 rgba(72, 49, 28, .09), 0 2px 6px -6px rgba(72, 49, 28, .22);--shadow-md: 0 1px 0 rgba(255, 255, 255, .78) inset, 0 1px 1px rgba(72, 49, 28, .11), 0 9px 20px -15px rgba(72, 49, 28, .36);--shadow-lg: 0 1px 0 rgba(255, 255, 255, .84) inset, 0 2px 5px -2px rgba(72, 49, 28, .16), 0 24px 46px -30px rgba(72, 49, 28, .54);--hero-shadow: 0 1px 0 rgba(255, 255, 255, .84) inset, 1px 1px 0 rgba(72, 49, 28, .1), 2px 3px 8px -7px rgba(72, 49, 28, .32), 7px 9px 22px -20px rgba(72, 49, 28, .22);--btn-secondary-bg: #f0e9dd;--btn-secondary-hover: #f1eadc}body.theme-warm-paper{background-color:var(--bg-color)}@media (hover: none),(prefers-reduced-motion: reduce){:root{--card-hover-offset: 0px;--card-hover-transform: none}}.paper-hover-card{transition:transform var(--transition-fast) ease,border-color var(--transition-fast) ease,box-shadow var(--transition-fast) ease}.paper-hover-card.paper-hover-card:hover{transform:var(--paper-hover-transform, var(--card-hover-transform));border-color:var(--card-hover-border);box-shadow:var(--card-shadow-hover)}.paper-hover-card.paper-hover-card.know-1:hover{border-left-color:var(--know-1);border-bottom-color:var(--know-1)}.paper-hover-card.paper-hover-card.know-2:hover{border-left-color:var(--know-2);border-bottom-color:var(--know-2)}.paper-hover-card.paper-hover-card.know-3:hover{border-left-color:var(--know-3);border-bottom-color:var(--know-3)}.paper-hover-card.paper-hover-card.know-4:hover{border-left-color:var(--know-4);border-bottom-color:var(--know-4)}.paper-hover-card.paper-hover-card.know-5:hover{border-left-color:var(--know-5);border-bottom-color:var(--know-5)}*{box-sizing:border-box}html,body{overflow-x:hidden;max-width:100vw}body{font-family:var(--font-main);background-color:var(--bg-color);margin:0;color:var(--text-color);height:100vh;height:100dvh;font-size:14px;line-height:1.5;display:flex;flex-direction:column;overflow:hidden}#app{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}a{text-decoration:none;color:inherit}a:visited{color:inherit}button{padding:0;background:none;border:none;font:inherit;color:inherit;cursor:pointer}button.primary{padding:8px 16px;background:var(--accent-color);color:#fff;border:none;border-radius:6px;font-weight:500;transition:background var(--transition-fast) ease}button.primary:hover{background-color:var(--accent-hover)}button.secondary{padding:8px 16px;background:var(--btn-secondary-bg);color:var(--text-color);border:none;border-radius:var(--card-radius);font-weight:500;transition:background var(--transition-fast) ease}button.secondary:hover{background:var(--btn-secondary-hover)}input[type=text]{padding:8px 12px;border-radius:6px;border:1px solid var(--border-color);outline:none;transition:border .2s;font-size:.9rem;color:var(--text-color);background:var(--card-bg)}input[type=text]:focus{border-color:var(--accent-color)}.hsk-1{background:var(--hsk-1)}.hsk-2{background:var(--hsk-2)}.hsk-3{background:var(--hsk-3)}.hsk-4{background:var(--hsk-4)}.hsk-5{background:var(--hsk-5);color:var(--text-color)}.hsk-6{background:var(--hsk-6)}.hsk-7,.hsk-8,.hsk-9,.hsk-7-9{background:var(--hsk-7-9)}.srs-new{background:var(--srs-new);color:#fff}.srs-learning{background:var(--srs-learning);color:var(--text-color)}.srs-young{background:var(--srs-young);color:#fff}.srs-mature{background:var(--srs-mature);color:#fff}.hanzi,.card-character,.hero-hanzi{font-family:var(--font-hanzi)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}header{background:var(--card-bg);border-bottom:1px solid var(--border-color);display:flex;flex-direction:column;box-shadow:var(--shadow-sm);z-index:10;flex-shrink:0}body.theme-warm-paper header{background:var(--paper-rail);border-bottom-color:#d8cdb7;box-shadow:var(--shadow-sm)}body.theme-warm-paper .logo{color:#312a23}body.theme-warm-paper .logo-hanzi{width:auto;height:auto;background:transparent;color:#b54535;font-size:1.75rem;text-shadow:0 1px 0 rgba(255,255,255,.55);box-shadow:none;line-height:1}body.theme-warm-paper .logo-text{letter-spacing:-.01em}body.theme-warm-paper .logo-dot{color:#8c7e70;opacity:1}body.theme-warm-paper .logo-dev-toggle{left:0;bottom:-.5rem;transform:none;background:#f9f4ebf2}.header-row{display:flex;align-items:center;padding:8px 20px;gap:16px}body.theme-warm-paper .header-row{padding-top:7px;padding-bottom:7px;gap:12px}.logo,.logo:visited{font-weight:700;font-size:1.35rem;color:var(--text-color);display:flex;align-items:center;gap:8px;letter-spacing:.5px;flex-shrink:0}.logo-shell{position:relative;display:flex;align-items:center;flex-shrink:0}.logo-hanzi{font-size:1.6rem;font-family:var(--font-hanzi);color:var(--accent-color)}.logo-text{font-weight:800}.logo-dot{font-weight:500;opacity:.6}.logo-dev-toggle{position:absolute;left:.8rem;bottom:0;z-index:2;transform:translate(-50%,35%);display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:18px;padding:0 5px;border-radius:4px;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-faint);font-size:.56rem;font-weight:800;letter-spacing:.04em;line-height:1;cursor:pointer;box-shadow:0 1px 2px #00000014;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}.logo-dev-toggle:hover{border-color:var(--text-dim);color:var(--text-dim)}.logo-dev-toggle.active{background:var(--accent-color);border-color:var(--accent-color);color:#fff;box-shadow:0 1px 3px #c5392947}.logo-testing,.logo-testing:visited{font-weight:400;margin-left:4px;color:var(--accent-color)}header input[type=text]{border-radius:6px;padding:7px 30px 7px 10px;font-size:1rem;background:var(--card-bg);border:1px solid var(--border-color);width:170px;min-width:80px;transition:border-color .15s,background .15s}body.theme-warm-paper header input[type=text]{background:var(--paper-card);border-color:var(--border-color);box-shadow:inset 0 1px #785b390f,0 1px 1px #785b390a}body.theme-warm-paper header input[type=text]:hover{border-color:var(--border-strong)}body.theme-warm-paper header input[type=text]:focus{border-color:#b95a4b;background:var(--paper-card)}body.theme-warm-paper .header-row>.search-box{flex:0 0 190px}.search-box{flex-shrink:1}header input[type=text]::placeholder{color:var(--text-dim)}header input[type=text]:hover{border-color:var(--border-strong)}header input[type=text]:focus{border-color:var(--text-faint);background:var(--card-bg);outline:none}.search-box{position:relative}.search-input-row{display:flex;align-items:center;gap:0}.search-input-row input[type=text]{flex:1;min-width:0}.hw-toggle{display:flex;align-items:center;justify-content:center;width:32px;height:32px;flex-shrink:0;background:none;border:none;color:var(--text-dim);cursor:pointer;border-radius:4px;transition:color .15s,background .15s;margin-left:-32px;position:relative;z-index:1}.hw-toggle:hover{color:var(--text-color)}.hw-toggle.active{color:var(--accent-color)}.hw-popover{position:absolute;top:100%;left:0;margin-top:4px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:6px;box-shadow:var(--shadow-lg);z-index:100}.search-box input[type=text]{width:100%}.search-dropdown{position:absolute;top:100%;left:0;min-width:min(400px,calc(100vw - 32px));margin-top:4px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:6px;box-shadow:var(--shadow-lg);z-index:100;overflow:hidden}.search-dropdown-item{display:flex;align-items:center;gap:8px;padding:7px 12px;cursor:pointer;transition:background .1s}.search-dropdown-item.highlighted{background:var(--hover-bg, rgba(0,0,0,.05))}.search-dropdown-item .sdi-char{font-family:var(--font-hanzi);font-size:1.1rem;font-weight:600;min-width:1.5em;flex-shrink:0}.search-dropdown-item .sdi-pinyin{color:var(--text-muted);font-size:.82rem;min-width:3.5em;flex-shrink:0}.search-dropdown-item .sdi-def{color:var(--text-muted);font-size:.82rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.search-dropdown-item .sdi-level{font-size:.65rem;font-weight:600;color:#fff;background:var(--text-dim);border-radius:3px;padding:1px 4px;flex-shrink:0;line-height:1.3}.search-dropdown-item .sdi-level[data-level="1"]{background:var(--hsk-1)}.search-dropdown-item .sdi-level[data-level="2"]{background:var(--hsk-2)}.search-dropdown-item .sdi-level[data-level="3"]{background:var(--hsk-3)}.search-dropdown-item .sdi-level[data-level="4"]{background:var(--hsk-4)}.search-dropdown-item .sdi-level[data-level="5"]{background:var(--hsk-5);color:var(--text-color)}.search-dropdown-item .sdi-level[data-level="6"]{background:var(--hsk-6)}.search-dropdown-item .sdi-level[data-level="7"]{background:var(--hsk-7-9)}.search-dropdown-item .sdi-type{font-size:.7rem;color:var(--text-muted);opacity:.7;flex-shrink:0}.header-nav{display:flex;align-items:center;gap:2px;flex:1}.nav-item{display:inline-flex;align-items:center;gap:4px;padding:6px 10px;text-decoration:none;white-space:nowrap;background:none;border:1px solid transparent;cursor:pointer;font:inherit;font-size:.9rem;font-weight:600;color:var(--text-color);transition:color .15s,border-color .15s,background .15s;border-radius:6px;position:relative}.nav-glyph{display:inline-block;width:20px;height:20px;flex:0 0 20px;overflow:visible;vertical-align:-.18em;filter:drop-shadow(0 1px 0 rgba(255,255,255,.45))}.nav-symbol{display:inline-flex;align-items:center;justify-content:center;width:1.25em;height:1.25em;flex:0 0 1.25em;font-size:1.05rem;line-height:1;transform:translateY(-.02em);filter:saturate(.92) drop-shadow(0 1px 0 rgba(255,255,255,.5))}.nav-symbol-pinyin{border-radius:999px;background:#b9d9e5;color:#36525c;font-size:.75rem;font-weight:900;font-family:var(--font-main);box-shadow:inset 0 -1px #3858602e}body.theme-warm-paper .nav-symbol{font-size:1.08rem}body.theme-warm-paper .nav-symbol-pinyin{font-size:.78rem}.nav-symbol-stats{background:transparent;filter:drop-shadow(0 1px 0 rgba(255,255,255,.55))}.nav-stats-bars{display:inline-flex;align-items:flex-end;justify-content:center;gap:2px;width:1em;height:1em;transform:translateY(-.14em)}.nav-stats-bars i{display:block;width:.24em;border-radius:1px 1px 0 0;box-shadow:inset 0 0 0 1px #3f30241a}.nav-stats-bars i:nth-child(1){height:.58em;background:#2aa7df}.nav-stats-bars i:nth-child(2){height:.9em;background:#2fb66d}.nav-stats-bars i:nth-child(3){height:.74em;background:#d64b3a}.nav-glyph>*{transform-box:fill-box;transform-origin:center;transform:scale(1.08)}.nav-glyph .glyph-fill{stroke:#3f30241f;stroke-width:.45}.nav-glyph .glyph-ink,.nav-glyph .glyph-paper-line,.nav-glyph .glyph-branch{fill:none;stroke:#4d4035;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.nav-glyph .glyph-ink{stroke-width:1.55}.nav-glyph .glyph-paper-line,.nav-glyph .glyph-branch{stroke-width:1.35}.nav-glyph .glyph-paper-line{stroke:#523b2a9e}.nav-glyph .glyph-branch{stroke:#5f6f4a}.nav-glyph .glyph-letter{fill:#3d4b52;font-family:var(--font-main);font-size:9.6px;font-weight:800;dominant-baseline:alphabetic}.glyph-red{fill:#c75745}.glyph-peach{fill:#e9a18d}.glyph-gold{fill:#d4a44a}.glyph-teal{fill:#4d8f89}.glyph-mint{fill:#9ac7b5}.glyph-blue{fill:#4f91af}.glyph-blue-soft{fill:#b9d9e5}.glyph-green{fill:#5ca776}.glyph-leaf{fill:#a9c775}.glyph-purple{fill:#8f65ab}.glyph-pink{fill:#d99ab8}.glyph-brown{fill:#a56e3d}.glyph-cream{fill:#f4dfbd}.nav-item:hover{border-color:var(--border-color);background:#00000005}body.theme-warm-paper .nav-item{color:#4a4138;gap:6px;padding:6px 8px 6px 6px;border-radius:8px;font-size:.96rem;font-weight:700}body.theme-warm-paper .nav-item .nav-glyph{width:21px;height:21px;flex-basis:21px}body.theme-warm-paper .nav-item:hover{border-color:var(--border-color);background:var(--bg-hover);color:#2f2a24}body.theme-warm-paper .nav-item:hover .nav-glyph,body.theme-warm-paper .nav-item.router-link-active .nav-glyph,body.theme-warm-paper .nav-item:hover 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