*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f5f6f8;color:#333;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{min-height:100vh}:root{--primary-color: #8ab6a0;--primary-light: #a8c9b5;--primary-dark: #6e9a83;--border-color: #e5e7eb;--bg-color: #f5f6f8;--sidebar-bg: #ffffff;--text-color: #2d3748;--text-secondary: #718096;--text-light: #a0aec0;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1)}.home-container{display:flex;min-height:100vh;position:relative}.sidebar{width:220px;background:var(--sidebar-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:width .3s ease;flex-shrink:0;position:relative}.sidebar.collapsed{width:68px}.sidebar.collapsed .nav-item{justify-content:center;padding:10px 0}.sidebar.collapsed 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#8ab6a066}.nav-item.active:hover{background:#e8f0ec;color:var(--primary-dark)}.nav-icon{font-size:14px;font-weight:600;width:34px;height:34px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:#edf2f7;color:var(--text-secondary);border-radius:9px;transition:all .2s ease;letter-spacing:0;padding:7px}.nav-text{flex:1;overflow:hidden;text-overflow:ellipsis}.toggle-btn{position:absolute;right:-14px;top:50%;transform:translateY(-50%);width:28px;height:56px;background:var(--sidebar-bg);border:1px solid var(--border-color);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .2s ease;z-index:10;padding:0;box-shadow:var(--shadow-sm)}.toggle-btn:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.toggle-icon{font-size:22px;font-weight:300;line-height:1}.main-content{flex:1;display:flex;flex-direction:column;min-width:0;transition:margin-left .3s ease}.top-bar{padding:16px 20px;background:#fff;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:50;box-shadow:var(--shadow-sm)}.search-wrapper{flex:1;position:relative;max-width:500px}.search-box{width:100%;padding:12px 44px 12px 16px;border:1px solid var(--border-color);border-radius:10px;font-size:14px;outline:none;transition:all .2s ease;background:#f7fafc}.search-box:focus{border-color:var(--primary-color);background:#fff;box-shadow:0 0 0 3px #8ab6a01a}.clear-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:24px;height:24px;border:none;background:#cbd5e0;border-radius:50%;cursor:pointer;color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all .2s ease;padding:0;line-height:1}.clear-btn:hover{background:#a0aec0}.current-category{padding:8px 16px;background:var(--primary-color);color:#fff;border-radius:20px;font-size:13px;font-weight:500;flex-shrink:0}.wheel-entry{display:flex;align-items:center;gap:6px;padding:8px 14px;background:var(--primary-color);color:#fff;border:none;border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;flex-shrink:0;box-shadow:0 2px 8px #8ab6a059;transition:all .2s ease}.wheel-entry:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #8ab6a080}.wheel-entry:active{transform:translateY(0) scale(.97)}.wheel-entry svg{width:18px;height:18px;display:block}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px;padding:20px;flex:1;align-content:start}.image-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease;cursor:pointer;display:flex;flex-direction:column}.image-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.image-card:active{transform:translateY(0) scale(.98)}.image-card .image-wrapper{position:relative;width:100%;display:block;background:#edf2f7;aspect-ratio:3 / 4;overflow:hidden}.image-card img{width:100%;height:100%;object-fit:cover;display:block;background:#edf2f7;opacity:0;transition:opacity .3s ease}.image-card .image-wrapper.loaded img{opacity:1}.image-card .image-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;background:#edf2f7;overflow:hidden;z-index:1}.image-card .placeholder-shimmer{width:100%;height:100%;background:linear-gradient(90deg,#edf2f7,#f7fafc,#edf2f7);background-size:200% 100%;animation:shimmer 1.4s ease-in-out infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.image-card .image-wrapper.loaded .image-placeholder{display:none}.image-card .image-error{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#f7fafc;color:var(--text-light);z-index:1}.image-card .image-error svg{width:40px;height:40px;opacity:.5}.image-card .image-error span{font-size:12px}.image-card .name{padding:10px 12px;font-size:13px;color:var(--text-secondary);text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.no-result{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-secondary)}.no-result-icon{width:72px;height:72px;margin-bottom:16px;display:flex;align-items:center;justify-content:center;background:#edf2f7;color:var(--text-light);border-radius:18px;padding:18px}.no-result-icon svg{width:100%;height:100%;display:block}.no-result p{font-size:15px;margin-bottom:20px}.reset-btn{padding:10px 24px;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s ease}.reset-btn:hover{background:var(--primary-dark)}@media screen and (max-width: 768px){html{font-size:14px}.home-container{flex-direction:column}.sidebar{width:100%;height:auto;max-height:none;overflow:visible;border-right:none;border-bottom:1px solid var(--border-color);transition:none;background:var(--sidebar-bg)}.sidebar.collapsed{width:100%;max-height:none}.sidebar-header,.toggle-btn{display:none}.sidebar-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:10px 10px 12px;border-top:none;overflow:visible}.nav-item{flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:8px 4px;min-width:0;flex-shrink:0;text-align:center;border-radius:10px;background:#f1f5f4;font-size:12px;color:var(--text-secondary)}.nav-item:hover{background:#e8efe9;color:var(--text-color)}.nav-item:hover .nav-icon{background:var(--primary-light);color:#fff}.nav-item.active{background:var(--primary-color);color:#fff;font-weight:500}.nav-item.active .nav-icon{background:#ffffff40;color:#fff;box-shadow:none}.nav-item.active:hover{background:var(--primary-dark);color:#fff}.nav-icon{width:32px;height:32px;padding:6px;border-radius:50%;background:#e2e8ea;color:var(--text-secondary)}.nav-text{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.main-content{width:100%}.top-bar{padding:12px 16px;flex-wrap:wrap;gap:10px}.search-wrapper{max-width:100%;width:100%}.current-category{width:100%;text-align:center}.wheel-entry{padding:7px 12px;font-size:12px}.image-grid{grid-template-columns:repeat(2,1fr);gap:10px;padding:12px}.image-card .name{padding:8px;font-size:12px}}@media screen and (min-width: 769px) and (max-width: 1024px){.image-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}.sidebar-nav::-webkit-scrollbar,.image-grid::-webkit-scrollbar{width:6px}.sidebar-nav::-webkit-scrollbar-thumb,.image-grid::-webkit-scrollbar-thumb{background:#cbd5e0;border-radius:3px}.sidebar-nav::-webkit-scrollbar-track,.image-grid::-webkit-scrollbar-track{background:transparent}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.image-card{animation:fadeIn .3s ease forwards}