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var(--border);border-radius:var(--radius);padding:20px}.card:hover{border-color:var(--border-light)}.tone-badge{display:inline-block;width:18px;height:18px;border-radius:50%;font-size:.65rem;font-weight:700;font-family:var(--font-mono);text-align:center;line-height:18px;flex-shrink:0}.tone-1{background:#e05c5c33;color:var(--tone1)}.tone-2{background:#e08c3a33;color:var(--tone2)}.tone-3{background:#5cb88a33;color:var(--tone3)}.tone-4{background:#5c8fe033;color:var(--tone4)}.tone-0{background:#7070a033;color:var(--tone0)}.stars{display:flex;gap:3px}.star{font-size:.75rem;color:var(--text-3);cursor:pointer;transition:color .15s}.star--lit,.star:hover{color:var(--accent)}.pinyin{font-family:var(--font-mono);font-size:.8rem;color:var(--text-2);letter-spacing:.02em}.character{font-family:var(--font-zh);font-weight:700}.tag{display:inline-block;padding:2px 8px;border-radius:100px;font-size:.68rem;font-weight:500;letter-spacing:.04em}.tag--syn{background:#5c8fe01f;color:var(--blue);border:1px solid rgba(92,143,224,.2)}.tag--ant{background:#e05c5c1f;color:var(--red);border:1px solid rgba(224,92,92,.2)}.tag--def{background:#c8a96e1f;color:var(--accent);border:1px solid rgba(200,169,110,.2)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-3);color:var(--text);font-family:var(--font-sans);font-size:.82rem;font-weight:500;cursor:pointer;transition:all .15s ease}.btn:hover{background:var(--bg-4);border-color:var(--border-light)}.btn--primary{background:var(--accent);border-color:var(--accent);color:#0e0e10;font-weight:600}.btn--primary:hover{background:#d4b878;border-color:#d4b878}.btn--ghost{background:transparent}.btn--sm{padding:5px 10px;font-size:.75rem}.btn--danger{color:var(--red);border-color:#e05c5c4d}.btn--danger:hover{background:#e05c5c1a;border-color:var(--red)}.input{background:var(--bg-3);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:var(--font-sans);font-size:.85rem;padding:8px 12px;width:100%;outline:none;transition:border-color .15s}.input:focus{border-color:var(--accent)}.input::placeholder{color:var(--text-3)}.search-bar{display:flex;align-items:center;gap:8px;background:var(--bg-3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 14px}.search-bar:focus-within{border-color:var(--accent)}.search-bar input{background:none;border:none;outline:none;color:var(--text);font-family:var(--font-sans);font-size:.85rem;flex:1}.search-bar input::placeholder{color:var(--text-3)}.search-icon{color:var(--text-3);font-size:.9rem}.divider{border:none;border-top:1px solid var(--border);margin:16px 0}.empty-state{text-align:center;padding:64px 32px;color:var(--text-3)}.empty-state .emoji{font-size:2.5rem;margin-bottom:12px}.empty-state p{font-size:.85rem}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-3)}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .25s ease forwards}.mobile-nav{display:none}@media (max-width: 640px){.app-header{padding:0 16px;height:56px;gap:12px}.tab-nav{display:none}.header-right{gap:10px}.brand-zh{font-size:1rem}.brand-en{font-size:.55rem}.lang-switcher{padding:3px 6px}.lang-btn{font-size:.65rem;padding:2px 5px}.page{padding:16px}.page-title{font-size:1.3rem}.app-footer{margin-bottom:60px}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:60px;background:var(--bg-2);border-top:1px solid var(--border);z-index:100;padding-bottom:env(safe-area-inset-bottom)}.mobile-nav__btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:none;border:none;cursor:pointer;color:var(--text-3);font-size:.55rem;font-weight:500;letter-spacing:.05em;text-transform:uppercase;transition:color .15s;padding:0}.mobile-nav__btn--active{color:var(--accent)}.mobile-nav__icon{font-size:1.3rem;line-height:1}.app-main{padding-bottom:60px}}