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h2{margin:0;font-size:1.4rem}.app-nav{display:grid;gap:8px}.nav-button{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-radius:12px;border:1px solid transparent;background:#ffffffb3;font-weight:600;cursor:pointer;color:#1f2622}.nav-button.is-active{border-color:#2e787459;background:#2e78741f;color:var(--accent)}.demo-list{display:grid;gap:10px;padding-top:6px;border-top:1px solid rgba(31,38,34,.08)}.demo-button{text-align:left;padding:10px 12px;border-radius:10px;border:1px solid rgba(31,38,34,.1);background:#fff;cursor:pointer;color:#1f2622}.demo-button.is-active{background:#2e78741a;border-color:#2e787440}.sidebar-card{padding:14px;border-radius:14px;background:#ffffffd9;border:1px solid rgba(31,38,34,.08);font-size:.9rem}.app-main{flex:1;padding:28px;overflow:auto}.app-main>*{max-width:1200px;margin:0 auto}.demo-empty{padding:24px;border-radius:16px;background:var(--surface);box-shadow:var(--shadow-soft)}.app-error{display:grid;gap:12px}.app-error h3{margin:0}.app-error__actions{display:flex;flex-wrap:wrap;gap:10px}.app-error__detail{margin:0;padding:10px 12px;border-radius:10px;border:1px solid rgba(31,38,34,.12);background:#f6f4eee6;color:#1f2622;font-size:.85rem;line-height:1.45;white-space:pre-wrap;word-break:break-word}.theme-toggle{width:100%;background:#ffffff80;color:var(--text-muted);border:1px solid rgba(31,38,34,.1);font-size:.85rem;font-weight:500;padding:8px 12px}.theme-toggle:hover{background:#fffc;color:var(--accent);box-shadow:none;transform:none}[data-theme=eye-care] .theme-toggle{background:#f5ebd080}[data-theme=eye-care] .theme-toggle:hover{background:#f5ebd0cc}[data-theme=eye-care] .nav-button{background:#f5ebd0b3;color:#2a2010}[data-theme=eye-care] .nav-button.is-active{border-color:#7a653059;background:#7a65301f}[data-theme=eye-care] .sidebar-toggle{background:#f5ebd0b3}[data-theme=eye-care] .sidebar-toggle:hover{background:#7a65301a}[data-theme=eye-care] .demo-button{background:#f5ebd0e6;color:#2a2010;border-color:#2a20101a}[data-theme=eye-care] .demo-button.is-active{background:#7a65301a;border-color:#7a653040}[data-theme=eye-care] .sidebar-card{background:#f5ebd0d9}[data-theme=eye-care] .app-error__detail{background:#ebdebee6;color:#2a2010}@media(max-width:900px){.app-shell{flex-direction:column}.app-sidebar{width:100%}}.phone-shell{min-height:100vh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.phone-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px 4px}.phone-header h1{margin:0;font-size:1.3rem}.phone-header__actions{display:flex;gap:6px}.phone-main{padding:8px 12px 24px}.phone-key{display:grid;gap:12px;max-width:420px;margin:24px auto}.phone-key h2,.phone-key p{margin:0}.phone-key input{font:inherit;font-size:16px;padding:10px 12px;border-radius:10px;border:1px solid rgba(31,38,34,.2)}.phone-main .session-header{flex-direction:column;align-items:flex-start;gap:10px}.phone-main .session-header h2{font-size:1.2rem}