:root{--bg-app:#faf9f5;--bg-panel:#fff;--bg-subtle:#f4f3ed;--bg-hover:#eceae2;--bg-accent-tint:#eaf2ed;--border-subtle:#e5e3dc;--border-strong:#ccc9bf;--border-focus:#2d5a43;--text-primary:#1f2421;--text-secondary:#58615a;--text-muted:#8a928c;--text-inverse:#fff;--accent-primary:#2d5a43;--accent-hover:#244936;--accent-active:#1a3627;--accent-text:#fff;--danger:#b33939;--danger-bg:#fdf0f0;--danger-border:#f5c6cb;--warning:#b7791f;--warning-bg:#fffbf0;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-serif:"Noto Serif SC", "Source Han Serif SC", SimSun, STSong, serif;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000012;--shadow-lg:0 8px 24px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-user-select:none;user-select:none;width:100vw;height:100dvh;line-height:1.5;overflow:hidden}.session-loading{z-index:2000;background:var(--bg-app);color:var(--text-secondary);place-items:center;display:grid;position:fixed;inset:0}button,input,select,textarea{font-family:inherit;font-size:14px}button{cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;gap:6px;transition:all .15s;display:inline-flex}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.btn{border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:var(--bg-panel);color:var(--text-primary);padding:8px 14px;font-weight:500}.btn:hover{background:var(--bg-subtle);border-color:var(--border-strong)}.btn:active{background:var(--bg-hover)}.btn-primary{background:var(--accent-primary);color:var(--accent-text);border-color:var(--accent-primary)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-primary:active{background:var(--accent-active)}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-danger:hover{background:#962d2d}.btn-icon{border-radius:var(--radius-md);width:36px;height:36px;color:var(--text-secondary);border:1px solid #0000;padding:0}.btn-icon:hover{background:var(--bg-subtle);color:var(--text-primary);border-color:var(--border-subtle)}.input-text{border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:var(--bg-panel);width:100%;color:var(--text-primary);padding:8px 12px}.input-text:focus{border-color:var(--border-focus)}.label{color:var(--text-secondary);margin-bottom:4px;font-size:12px;font-weight:500;display:block}.badge{border-radius:var(--radius-sm);background:var(--bg-subtle);color:var(--text-secondary);border:1px solid var(--border-subtle);align-items:center;gap:4px;padding:2px 8px;font-size:11px;font-weight:500;display:inline-flex}.badge-verified{color:#1e663d;background:#eef8f2;border-color:#c4ebd1}.badge-recommended{color:#1d4ed8;background:#eff6ff;border-color:#bfdbfe}.badge-pending{color:#92400e;background:#fffbeb;border-color:#fde68a}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#14181673;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-panel);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);box-shadow:var(--shadow-lg);flex-direction:column;width:100%;max-width:680px;max-height:90vh;animation:.2s cubic-bezier(.16,1,.3,1) modal-in;display:flex;overflow:hidden}@keyframes modal-in{0%{opacity:0;transform:scale(.97)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-title{color:var(--text-primary);font-size:16px;font-weight:600}.modal-body{flex:1;padding:20px;overflow-y:auto}.modal-footer{border-top:1px solid var(--border-subtle);background:var(--bg-subtle);justify-content:flex-end;align-items:center;gap:10px;padding:14px 20px;display:flex}.alert-box{border-radius:var(--radius-md);align-items:flex-start;gap:8px;margin-bottom:12px;padding:10px 14px;font-size:13px;display:flex}.alert-warning{background:var(--warning-bg);color:#9a3412;border:1px solid #fed7aa}.alert-danger{background:var(--danger-bg);border:1px solid var(--danger-border);color:var(--danger)}.alert-info{color:#244936;background:#f0f7f4;border:1px solid #cce5d7}.desktop-left-panel,.desktop-right-panel{height:100%;display:flex}.desktop-nav-rail{display:flex}.desktop-only{display:inline-flex}.mobile-bottom-bar,.mobile-only{display:none}@media (width<=768px){.mobile-only{display:inline-flex!important}.studio-header{flex-wrap:wrap;flex-shrink:0;min-height:52px;height:auto!important;padding:6px 8px!important;overflow:visible!important}.header-document{flex-wrap:nowrap;width:100%;gap:4px!important}.header-document input{flex:1;width:0;min-width:0!important;max-width:none!important}.header-save-actions{gap:4px!important}.header-new-design,.header-save-actions button{width:40px;min-width:40px;padding:0!important}.header-actions-guest{display:none!important}.header-actions{justify-content:flex-end;width:100%;overflow-x:auto}.studio-header button{flex-shrink:0;min-height:40px}.header-actions .btn{padding:5px 8px!important}.header-actions>div{display:none}.export-layout{flex-direction:column}.export-options,.mobile-drawer>:last-child{width:100%!important}.modal-header{flex-wrap:wrap;gap:8px}.modal-header .modal-title{font-size:15px}.desktop-left-panel,.desktop-right-panel,.desktop-nav-rail,.desktop-only{display:none!important}.mobile-bottom-bar{display:flex!important}}