:root{--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--primary-bg: rgba(99, 102, 241, .12);--accent: #06b6d4;--accent-light: #22d3ee;--gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);--gradient-text: linear-gradient(135deg, #ffffff 0%, #a5b4fc 50%, #67e8f9 100%);--bg: #0a0a0f;--bg-darker: #050508;--bg-card: rgba(18, 18, 26, .7);--bg-card-hover: rgba(26, 26, 37, .9);--bg-glass: rgba(255, 255, 255, .03);--border-glass: rgba(255, 255, 255, .08);--text: #ffffff;--text-secondary: #a1a1aa;--text-muted: #71717a;--border-color: #27272a;--shadow-glow: 0 0 40px rgba(99, 102, 241, .3);--shadow-md: 0 10px 40px rgba(0, 0, 0, .4);--warning: #fbbf24;--success: #34d399;--danger: #f87171;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}.app{position:relative;min-height:100vh;display:flex;background:radial-gradient(circle at 20% 20%,rgba(99,102,241,.15) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(6,182,212,.1) 0%,transparent 50%),var(--bg)}.app:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:50px 50px;z-index:0}.app>*{position:relative;z-index:1}.sidebar{width:232px;flex-shrink:0;display:flex;flex-direction:column;background:#0a0a0fd9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border-glass);position:sticky;top:0;height:100vh}.sidebar-header{padding:20px 18px;border-bottom:1px solid var(--border-glass)}.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;background:var(--gradient-primary);border-radius:12px;box-shadow:var(--shadow-glow)}.brand-text{display:flex;flex-direction:column}.brand-name{font-size:17px;font-weight:700;letter-spacing:1px}.brand-slogan{font-size:11px;color:var(--text-secondary);letter-spacing:.5px}.mode-pill{margin-top:12px;display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--text-secondary);background:var(--bg-glass);border:1px solid var(--border-glass);padding:3px 10px;border-radius:999px}.mode-dot{width:6px;height:6px;border-radius:50%;background:var(--success)}.nav-area{padding:18px 12px;flex:1;overflow-y:auto}.nav-group{margin-bottom:18px}.nav-group-title{font-size:11px;color:var(--text-muted);letter-spacing:1px;padding:0 10px;margin-bottom:6px;text-transform:uppercase}.nav-item{display:block;width:100%;text-align:left;padding:9px 12px;margin-bottom:2px;font-size:13px;color:var(--text-secondary);background:transparent;border:1px solid transparent;border-radius:10px;cursor:pointer;transition:all .2s}.nav-item:hover{background:var(--primary-bg);color:var(--text)}.nav-item.active{background:var(--primary-bg);color:#fff;border-color:#6366f159;font-weight:600}.sidebar-footer{padding:14px 18px;border-top:1px solid var(--border-glass);font-size:11px;color:var(--text-muted)}.sidebar-footer a{color:var(--primary-light);text-decoration:none}.main{flex:1;min-width:0;display:flex;flex-direction:column}.top-bar{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;background:#0a0a0fb3;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-glass);position:sticky;top:0;z-index:10}.top-title{font-size:16px;font-weight:600}.top-badge{font-size:12px;color:var(--primary-light);background:var(--primary-bg);border:1px solid rgba(99,102,241,.3);padding:4px 12px;border-radius:999px}.main-content{padding:28px 32px;max-width:980px;width:100%;margin:0 auto}.user-chip{display:flex;align-items:center;gap:10px}.user-credits{font-size:12px;font-weight:600;color:#fff;background:var(--gradient-primary);padding:4px 12px;border-radius:999px;box-shadow:0 0 16px #6366f159}.user-name{font-size:13px;font-weight:600;color:var(--text)}.user-logout,.user-login,.user-register{font-size:12px;cursor:pointer;border-radius:999px;padding:5px 14px;border:1px solid var(--border-glass);background:var(--bg-glass);color:var(--text-secondary);transition:all .2s}.user-login:hover,.user-register:hover{color:#fff;border-color:var(--primary);background:var(--primary-bg)}.user-register{background:var(--gradient-primary);color:#fff;border:none;font-weight:600}.user-logout:hover{color:var(--danger);border-color:var(--danger)}.panel{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:24px 26px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.panel h2{font-size:20px;font-weight:700;margin-bottom:8px}.panel h2:before{content:"";display:none}.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.feature-card{position:relative;overflow:hidden;background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:18px 16px;cursor:pointer;transition:all .25s}.feature-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--gradient-primary);opacity:0;transition:opacity .25s}.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#6366f166}.feature-card:hover:before{opacity:.08}.feature-card:hover .feature-name{color:#fff}.feature-name{position:relative;font-size:14px;font-weight:600;margin-bottom:4px;transition:color .2s}.feature-desc{position:relative;font-size:11px;color:var(--text-secondary);line-height:1.5}.info-box{background:#06b6d414;border:1px solid rgba(6,182,212,.25);border-radius:var(--radius-md);padding:14px 16px;font-size:13px;color:var(--text-secondary);line-height:1.6}.info-box strong{color:var(--accent-light)}.field{margin-bottom:18px}.field label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:7px}.field-file-name{color:var(--primary-light);font-weight:400}.field .hint{font-size:12px;color:var(--text-muted);margin:6px 0 4px}.field input[type=file]{color:var(--text-secondary);font-size:12px;background:var(--bg-glass);border:1px dashed var(--border-glass);border-radius:var(--radius-md);padding:14px;width:100%;cursor:pointer}.field input[type=file]::file-selector-button{margin-right:12px;padding:6px 14px;background:var(--gradient-primary);color:#fff;border:none;border-radius:8px;font-size:12px;cursor:pointer}.field input[type=text],.field input[type=password],.field input[type=email],.field select,.field textarea{width:100%;padding:11px 14px;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--radius-md);color:var(--text);font-size:13px;outline:none;transition:border-color .2s,box-shadow .2s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f126}.field textarea{min-height:96px;resize:vertical;font-family:inherit}.upload-preview{margin-top:10px;background:var(--bg-darker);border:1px solid var(--border-glass);border-radius:var(--radius-md);padding:10px}.upload-preview-img{max-width:100%;max-height:240px;border-radius:8px;display:block;margin:0 auto}.upload-preview-audio{width:100%}.upload-preview-video{width:100%;max-height:300px;border-radius:8px;background:#000}.upload-preview-file{text-align:center;padding:14px}.upload-preview-file a{color:var(--primary-light);font-size:13px}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px #6366f173}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}.btn-ghost{padding:10px 18px;font-size:13px;background:transparent;color:var(--text-secondary);border:1px solid var(--border-glass);border-radius:var(--radius-md);cursor:pointer;transition:all .2s}.btn-ghost:hover{color:#fff;border-color:var(--primary);background:var(--primary-bg)}.loading-spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;display:inline-block;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.result{margin-top:26px}.result-item{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:14px;margin-bottom:14px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.result-item img{width:100%;border-radius:var(--radius-md);display:block}.result-item video{width:100%;border-radius:var(--radius-md);background:#000;display:block}.result-item audio{width:100%;padding:8px}.result-file{text-align:center;padding:10px}.result-download{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:12px;font-weight:600;color:var(--primary-light);text-decoration:none;padding:6px 14px;background:var(--primary-bg);border:1px solid rgba(99,102,241,.35);border-radius:999px;transition:all .2s}.result-download:hover{background:var(--primary);color:#fff}.result-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}.badge{font-size:11px;font-weight:600;padding:2px 10px;border-radius:999px;border:1px solid}.badge-mock{color:var(--warning);border-color:#fbbf2480;background:#fbbf2414}.badge-success{color:var(--success);border-color:#34d39980;background:#34d39914}.ts{font-size:12px;color:var(--text-muted)}.error-box{background:#f8717114;border:1px solid rgba(248,113,113,.35);color:#fca5a5;border-radius:var(--radius-md);padding:14px 16px;font-size:13px;line-height:1.6}.error-box span{font-weight:700;margin-right:8px}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}.history-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s}.history-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#6366f166}.history-thumb{position:relative;background:var(--bg-darker);min-height:120px}.history-thumb img,.history-thumb video{width:100%;display:block;max-height:200px;object-fit:cover}.history-thumb .audio-ph{font-size:42px;opacity:.35;display:flex;align-items:center;justify-content:center;height:120px}.history-meta{padding:12px 14px}.history-prompt{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-type{font-size:11px;color:var(--text-muted);margin-top:4px}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center}.modal-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.modal-content{position:relative;background:#12121af2;border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:28px 30px;width:min(420px,92vw);box-shadow:0 20px 60px #0009;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--text-muted);font-size:22px;cursor:pointer;line-height:1}.modal-close:hover{color:#fff}.auth-tabs{display:flex;gap:8px;margin-bottom:20px}.auth-tab{flex:1;padding:9px;font-size:14px;font-weight:600;background:var(--bg-glass);color:var(--text-secondary);border:1px solid var(--border-glass);border-radius:var(--radius-md);cursor:pointer;transition:all .2s}.auth-tab.active{background:var(--gradient-primary);color:#fff;border-color:transparent;box-shadow:0 4px 16px #6366f159}.auth-switch{text-align:center;font-size:13px;color:var(--text-secondary);margin:0}.auth-switch a{color:var(--primary-light);cursor:pointer;text-decoration:none}.auth-error{background:#f871711a;border:1px solid rgba(248,113,113,.35);color:#fca5a5;border-radius:10px;padding:9px 12px;font-size:12px;margin-bottom:12px}.btn-block{width:100%;justify-content:center}.btn{border:none;cursor:pointer}.btn-text{background:none;color:var(--text-secondary);font-size:13px}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;font-size:14px;font-weight:600;color:#fff;background:var(--gradient-primary);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s;box-shadow:0 4px 20px #6366f14d}.btn-outline{padding:10px 18px;font-size:13px;background:transparent;color:var(--text-secondary);border:1px solid var(--border-glass);border-radius:var(--radius-md);cursor:pointer;transition:all .2s}.page-content{max-width:720px}.page-content h2{font-size:20px;font-weight:700;margin-bottom:6px}.page-content .desc{font-size:13px;color:var(--text-muted);margin-bottom:24px;line-height:1.6}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:7px}.form-group .hint{font-size:12px;color:var(--text-muted);margin-left:8px}.form-row{display:flex;gap:14px}.form-row .form-group{flex:1}.row{display:flex;gap:14px}.row .field{flex:1}.page-content button:not(.btn-ghost):not(.btn-outline):not(.btn-text){display:inline-flex;align-items:center;gap:8px;padding:12px 24px;font-size:14px;font-weight:600;color:#fff;background:var(--gradient-primary);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s;box-shadow:0 4px 20px #6366f14d}.page-content button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 28px #6366f173}.page-content button:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}.auth-modal{width:min(420px,92vw);padding:28px 30px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}@media (max-width: 860px){.app{flex-direction:column}.sidebar{width:100%;height:auto;position:static}.nav-area{display:flex;flex-wrap:wrap;gap:8px;padding:12px}.nav-group{margin-bottom:0;width:100%}.nav-group-title{display:none}.nav-item{width:auto}.main-content{padding:18px 14px}.top-bar{padding:12px 14px;flex-wrap:wrap;gap:8px}.feature-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.form-row,.row{flex-direction:column;gap:0}.user-chip{gap:6px}}