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0px)}.ppt-home{min-height:100vh;background:linear-gradient(135deg,#1a2a6c,#2c3e50,#4a235a);color:#fff;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}.ppt-home-header{display:flex;align-items:center;padding:20px 32px;padding-left:max(32px,var(--safe-left));padding-right:max(32px,var(--safe-right));gap:16px;flex-wrap:wrap}.ppt-home-brand{color:#fff;opacity:.8;text-decoration:none;font-size:15px;-webkit-tap-highlight-color:transparent}.ppt-home-sep{opacity:.5}.ppt-home-title{margin:0;font-size:22px;font-weight:600}.ppt-home-main{max-width:1100px;margin:0 auto;padding:32px;padding-left:max(32px,var(--safe-left));padding-right:max(32px,var(--safe-right))}.ppt-mobile-tip{background:#00c9ff1f;border:1px solid rgba(0,201,255,.3);border-radius:10px;padding:10px 14px;margin-bottom:20px;font-size:13px;color:#cce8f7}.ppt-home-actions{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap}.ppt-btn{background:#ffffff14;color:#fff;border:1px solid rgba(255,255,255,.15);padding:12px 20px;border-radius:8px;cursor:pointer;font-size:15px;-webkit-tap-highlight-color:transparent;min-height:44px}.ppt-btn-primary{background:#00c9ff4d;border-color:#00c9ff80;font-weight:600}.ppt-btn-ghost{background:#ffffff14}.ppt-btn-sm{padding:8px 12px;font-size:13px;border-radius:6px;min-height:36px}.ppt-btn-edit{background:#00c9ff4d;border:none}.ppt-btn-preview{background:#92fe9d4d;border:none}.ppt-btn-dup{background:#ffffff1a;border:none}.ppt-btn-del{background:#ff50504d;border:none}.ppt-loading{opacity:.7}.ppt-empty{border:1px dashed rgba(255,255,255,.2);border-radius:12px;padding:60px 20px;text-align:center;opacity:.7}.ppt-project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.ppt-project-card{background:#ffffffd9;border:1px solid rgba(0,0,0,.08);border-radius:12px;padding:16px;color:#1a1a1a;box-shadow:0 4px 16px #00000026}.ppt-project-title{margin:0 0 6px;font-size:17px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ppt-project-meta{font-size:12px;opacity:.7;margin-bottom:12px}.ppt-project-actions{display:flex;gap:6px;flex-wrap:wrap}.ppt-home-footer{margin-top:60px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:12px;opacity:.6}@media(max-width:1024px){.ppt-project-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:768px){.ppt-home-header{padding:16px 20px;gap:10px}.ppt-home-title{font-size:18px}.ppt-home-main{padding:20px}.ppt-project-grid{grid-template-columns:repeat(2,1fr);gap:12px}.ppt-btn{padding:10px 16px;font-size:14px}}@media(max-width:480px){.ppt-home-header{padding:12px 14px;gap:8px}.ppt-home-title{font-size:16px}.ppt-home-main{padding:14px}.ppt-home-actions{flex-direction:column}.ppt-home-actions .ppt-btn{width:100%}.ppt-project-grid{grid-template-columns:1fr;gap:10px}.ppt-project-card{padding:14px}.ppt-project-title{font-size:15px}.ppt-project-actions{gap:4px}.ppt-project-actions .ppt-btn-sm{flex:1;min-width:60px}}@media(hover:none){.ppt-btn:hover{transform:none}.ppt-btn:active{opacity:.85}}.ppt-home-header #userButtonContainer{display:inline-flex!important;align-items:center}.ppt-home-header .login-register-btn{display:inline-flex!important;align-items:center;justify-content:center;padding:0 16px!important;height:36px!important;border-radius:10px!important;font-weight:500!important;font-size:.85rem!important;background:#ffffff14!important;border:1px solid rgba(255,255,255,.15)!important;color:#fff!important;text-decoration:none;white-space:nowrap;transition:all .2s ease!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}.ppt-home-header .login-register-btn:before{display:none!important}.ppt-home-header .login-register-btn:hover{background:#ffffff26!important;border-color:#00c9ff80!important;color:#00c9ff!important;transform:none!important;box-shadow:none!important}.ppt-home-header #userButtonContainer .user-avatar-btn{background:#ffffff14!important;border:1px solid rgba(255,255,255,.15)!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;box-shadow:none!important}.ppt-home-header #userButtonContainer .user-avatar-btn:hover{background:#ffffff26!important;border-color:#00c9ff80!important}[data-theme=light]{color-scheme:light}[data-theme=light] html,[data-theme=light] body,[data-theme=light] #root{background:#f5f5f7;color:#1a1a1a}[data-theme=light] .ppt-home{background:linear-gradient(135deg,#e3eaf6,#eef0f3,#f0e8ed);color:#1a1a1a}[data-theme=light] .ppt-home-brand,[data-theme=light] .ppt-home-sep,[data-theme=light] .ppt-home-title{color:#1a1a1a}[data-theme=light] .ppt-btn{background:#0000000a;color:#1a1a1a;border-color:#0000001f}[data-theme=light] .ppt-btn-primary{background:#00c9ff2e;border-color:#00c9ff80;color:#006a8a}[data-theme=light] .ppt-btn-ghost{background:#0000000a}[data-theme=light] .ppt-btn-edit{background:#00c9ff33;color:#006a8a}[data-theme=light] .ppt-btn-preview{background:#38a16933;color:#1a6b3e}[data-theme=light] .ppt-btn-dup{background:#0000000f;color:#1a1a1a}[data-theme=light] .ppt-btn-del{background:#ff50502e;color:#b03030}[data-theme=light] .ppt-mobile-tip{background:#00c9ff1a;border-color:#00c9ff66;color:#006a8a}[data-theme=light] .ppt-empty{border-color:#00000026;color:#4a5568}[data-theme=light] .ppt-project-card{background:#fff;border-color:#00000014;color:#1a1a1a;box-shadow:0 1px 3px #0000000f,0 4px 16px #00000014}[data-theme=light] .ppt-project-meta{color:#4a5568}[data-theme=light] .ppt-home-footer{border-top-color:#0000001a;color:#4a5568}[data-theme=light] .ppt-loading{color:#4a5568}.ppt-theme-toggle{position:relative;display:inline-flex}.ppt-theme-btn,.ppt-icon-button{display:inline-flex;align-items:center;justify-content:center;height:36px;min-width:56px;padding:0 14px;border-radius:18px;background:#ffffff0d;border:1px solid rgba(255,255,255,.12);color:#fff;font-size:1.1rem;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .2s ease,border-color .2s ease,color .2s ease}.ppt-theme-btn:hover,.ppt-icon-button:hover{background:#00c9ff1f;border-color:#00c9ff66;color:#00c9ff}[data-theme=light] .ppt-theme-btn{background:#0000000a;border-color:#0000001f;color:#1a1a1a}[data-theme=light] .ppt-theme-btn:hover{background:#00000014}[data-theme=light] .ppt-icon-button{background:#0000000a;border-color:#00000014;color:#1a1a1a}[data-theme=light] .ppt-icon-button:hover{background:#00c9ff1f;border-color:#00c9ff66;color:#006a8a}[data-theme=light] .ppt-home-header .login-register-btn{background:#fff!important;border-color:#0000001f!important;color:#1a1a1a!important}[data-theme=light] .ppt-home-header .login-register-btn:hover{background:#f5f5f7!important;border-color:#00c9ff80!important;color:#006a8a!important}[data-theme=light] .ppt-home-header #userButtonContainer .user-avatar-btn{background:#fff!important;border-color:#0000001f!important}[data-theme=light] .ppt-home-header #userButtonContainer .user-avatar-btn:hover{background:#f5f5f7!important;border-color:#00c9ff80!important}