*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f6f7;--surface: #ffffff;--surface2: #f0f1f3;--border: #e2e4e8;--text: #111214;--text-2: #5a5f6e;--text-3: #9ba0ad;--accent: #0CD25F;--accent-light: #0CD25F;--ios: #0a84ff;--android: #00a84e;--radius: 12px;--sidebar-w: 240px}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:14px;line-height:1.6;overflow:hidden}.app{display:flex;height:100vh}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:20px 16px 12px;border-bottom:1px solid var(--border)}.sidebar-logo{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--text);margin-bottom:12px}.sidebar-logo svg{color:var(--accent-light)}.platform-toggle{display:flex;background:var(--surface2);border-radius:8px;padding:3px;gap:2px}.platform-btn{flex:1;padding:5px 8px;border:none;border-radius:6px;background:transparent;color:var(--text-2);font-size:12px;font-weight:600;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center;gap:4px}.platform-btn.active[data-platform=ios]{background:var(--ios);color:#fff}.platform-btn.active[data-platform=android]{background:var(--android);color:#000}.platform-btn.active[data-platform=all]{background:var(--accent);color:#fff}.platform-btn.active[data-platform=android]{background:var(--android);color:#fff}.sidebar-search{padding:10px 12px;border-bottom:1px solid var(--border)}.search-input{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:7px 10px 7px 30px;color:var(--text);font-size:13px;outline:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235c5c6e' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:10px center}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text-3)}.sidebar-nav{flex:1;overflow-y:auto;padding:8px 0}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-track{background:transparent}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.nav-item{display:flex;align-items:center;gap:8px;padding:8px 16px;cursor:pointer;border-radius:0;transition:background .1s;color:var(--text-2);font-size:13px;border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--surface2);color:var(--text)}.nav-item.active{background:#0cd25f1a;color:#0aab4e}.nav-item-dot{width:6px;height:6px;border-radius:50%;background:var(--text-3);flex-shrink:0}.nav-item.active .nav-item-dot{background:#0cd25f}.nav-item-count{margin-left:auto;font-size:11px;color:var(--text-3);background:var(--surface);padding:1px 6px;border-radius:10px}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:11px;color:var(--text-3)}.main{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;align-items:flex-start;justify-content:space-between;gap:16px;background:var(--surface)}.topbar-title{font-size:20px;font-weight:700}.topbar-desc{font-size:13px;color:var(--text-2);margin-top:2px;max-width:600px}.topbar-meta{display:flex;align-items:center;gap:8px;flex-shrink:0}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:6px;font-size:11px;font-weight:600}.badge-ios{background:#0a84ff26;color:var(--ios)}.badge-android{background:#3ddc8426;color:var(--android)}.badge-count{background:var(--surface2);color:var(--text-2)}.content-area{flex:1;overflow-y:auto;padding:24px}.content-area::-webkit-scrollbar{width:6px}.content-area::-webkit-scrollbar-track{background:transparent}.content-area::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.section-block{margin-bottom:36px}.section-title{font-size:13px;font-weight:600;color:var(--text-2);text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--border)}.frames-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.frame-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .15s,transform .15s;cursor:default}.frame-card:hover{border-color:var(--accent);transform:translateY(-2px)}.frame-preview{aspect-ratio:9/16;background:var(--surface2);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.frame-preview img{width:100%;height:100%;object-fit:contain;display:block}.frame-preview-empty{color:var(--text-3);font-size:12px;text-align:center;padding:16px}.frame-platform-badge{position:absolute;top:8px;left:8px;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:700}.frame-platform-badge.ios{background:var(--ios);color:#fff}.frame-platform-badge.android{background:var(--android);color:#000}.frame-info{padding:10px 12px;border-top:1px solid var(--border)}.frame-name{font-size:12px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px}.frame-actions{display:flex;gap:6px}.action-btn{flex:1;padding:4px 8px;border-radius:6px;border:1px solid var(--border);background:var(--surface2);color:var(--text-2);font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:4px;transition:all .15s;text-decoration:none}.action-btn:hover{border-color:var(--accent-light);color:var(--accent-light)}.desc-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:20px;font-size:13px;color:var(--text-2);line-height:1.7}.desc-panel p+p{margin-top:8px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:60vh;color:var(--text-3);gap:12px}.empty-state-icon{font-size:40px}.empty-state-title{font-size:16px;font-weight:600;color:var(--text-2)}.feature-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 24px 16px;border-bottom:1px solid var(--border);background:var(--surface);margin:-24px -24px 24px}.error-banner{background:#ff6b6b1a;border:1px solid rgba(255,107,107,.3);border-radius:8px;padding:10px 14px;color:#ff6b6b;font-size:13px;margin-bottom:20px}.loading{display:flex;align-items:center;justify-content:center;height:200px;color:var(--text-2);gap:10px}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent-light);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.spinner-small{width:12px;height:12px;border:2px solid var(--border);border-top-color:var(--accent-light);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0;display:inline-block}