:root {
    --gold:#126DFF;--gold-light:#6EA8FF;--gold-dark:#7C3AED;
    --gold-pale:rgba(18,109,255,0.08);--gold-pale2:rgba(18,109,255,0.14);
    --bg-primary:#F6F8FC;--bg-secondary:#EEF3FF;--bg-card:#FFFFFF;--bg-card2:#F8FBFF;
    --text-primary:#0B1020;--text-secondary:#5B6475;--text-muted:#8A94A8;
    --border:rgba(18,109,255,0.18);--border-light:rgba(18,109,255,0.08);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  [hidden]{display:none !important;}
  html,body{height:100%;overflow:hidden;}
  body{font-family:'Noto Sans SC',sans-serif;background:var(--bg-primary);color:var(--text-primary);display:flex;flex-direction:column;}
  body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(18,109,255,0.06) 0%,transparent 60%),radial-gradient(ellipse 40% 40% at 90% 80%,rgba(18,109,255,0.04) 0%,transparent 50%);pointer-events:none;z-index:0;}

  nav{position:relative;z-index:100;display:grid;grid-template-columns:minmax(240px,1fr) auto minmax(240px,1fr);align-items:center;padding:0 32px;height:64px;border-bottom:1px solid var(--border);background:rgba(246,248,252,0.94);backdrop-filter:blur(20px);flex-shrink:0;}
  .nav-logo{display:flex;align-items:center;gap:14px;text-decoration:none;justify-self:start;}
  .nav-logo-mark{width:136px;height:42px;display:block;object-fit:contain;flex-shrink:0;}
  .nav-logo-text .cn{font-family:'Noto Serif SC',serif;font-size:16px;font-weight:500;color:var(--text-primary);letter-spacing:2px;}
  .nav-logo-text .en{font-size:9px;color:var(--gold);letter-spacing:3px;font-family:'Cinzel',serif;}
  .nav-tabs{display:flex;gap:4px;justify-self:center;}
  .nav-tab{display:flex;align-items:center;justify-content:center;gap:7px;padding:7px 17px;border-radius:6px;font-size:13px;color:var(--text-secondary);cursor:pointer;transition:color 0.2s,background-color 0.2s,border-color 0.2s;border:1px solid transparent;background:none;text-decoration:none;letter-spacing:0.5px;white-space:nowrap;flex-shrink:0;}
  .nav-tab svg{width:15px;height:15px;opacity:0.6;}
  .nav-tab:hover{color:var(--text-primary);background:var(--gold-pale);}
  .nav-tab.active{color:var(--gold);background:var(--gold-pale);border-color:var(--border);}
  .nav-tab.active svg{opacity:1;}
  .nav-right{display:flex;align-items:center;gap:12px;justify-self:end;}
  .workspace-btn,.dealer-chip{display:flex;align-items:center;gap:6px;height:36px;padding:0 14px;border-radius:7px;border:1px solid var(--border);font-size:13px;color:var(--text-secondary);letter-spacing:.3px;background:var(--bg-card);}
  .workspace-btn{cursor:pointer;font-family:'Noto Sans SC',sans-serif;}
  .workspace-btn:hover{color:var(--gold);border-color:var(--gold-light);background:var(--gold-pale);}
  .switch-icon{width:15px;height:15px;stroke-width:1.6;}
  .dealer-chip{border:0;border-radius:18px;color:var(--gold-dark);background:rgba(18,109,255,.12);font-size:12px;}
  .mobile-drawer-btn{
    display:none;width:36px;height:36px;border:0;border-radius:0;background:transparent;
    color:var(--text-secondary);align-items:center;justify-content:center;cursor:pointer;
  }
  .mobile-drawer-btn svg{width:18px;height:18px;}
  .mobile-drawer-mask{display:none;}
  .mobile-route-btn{
    display:none;width:28px;height:36px;border:0;background:transparent;color:var(--text-secondary);
    align-items:center;justify-content:center;cursor:pointer;
  }
  .mobile-route-btn svg{width:16px;height:16px;}
  .mobile-route-mask,.mobile-route-menu{display:none;}
  .mobile-route-menu{
    position:fixed;top:56px;right:14px;z-index:270;width:160px;padding:8px;border-radius:12px;
    background:rgba(255,255,255,0.96);border:1px solid var(--border-light);
    box-shadow:0 16px 42px rgba(11,16,32,0.12);
  }
  .mobile-route-menu a{
    display:flex;align-items:center;height:38px;padding:0 12px;border-radius:8px;
    color:var(--text-secondary);text-decoration:none;font-size:13px;
  }
  .mobile-route-menu a.active,.mobile-route-menu a:hover{color:var(--gold);background:var(--gold-pale);}
  .mobile-asset-drawer{
    display:none;position:fixed;top:88px;left:0;bottom:0;z-index:260;
    width:min(74vw,290px);background:var(--bg-secondary);border-right:1px solid var(--border-light);
    box-shadow:18px 0 45px rgba(11,16,32,0.12);padding:20px 16px;overflow-y:auto;
    transform:translateX(-104%);transition:transform 0.22s ease;
  }
  .drawer-title{font-size:11px;color:var(--text-muted);letter-spacing:2px;font-family:'Cinzel',serif;padding-bottom:14px;border-bottom:1px solid var(--border-light);margin-bottom:8px;}
  .drawer-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--text-secondary);border:1px solid transparent;transition:all .15s;}
  .drawer-item:hover,.drawer-item.active{background:var(--gold-pale);border-color:var(--border);color:var(--gold);}
  .drawer-left{display:flex;align-items:center;gap:8px;font-size:13px;}
  .drawer-left svg{width:14px;height:14px;opacity:.72;flex-shrink:0;}
  .drawer-count{font-size:11px;color:var(--text-muted);background:var(--bg-card);padding:2px 8px;border-radius:20px;}
  .drawer-item.active .drawer-count{background:var(--gold-pale2);color:var(--gold);}
  .drawer-divider{height:1px;background:var(--border-light);margin:14px 0;}
  .drawer-manage{display:block;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-card);color:var(--gold);font-size:12px;text-align:center;text-decoration:none;}
  .avatar-btn{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--gold) 0%,var(--gold-dark) 100%);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:500;color:white;cursor:pointer;border:2px solid var(--border);}

  .page-body{display:flex;flex:1;overflow:hidden;position:relative;z-index:1;}

  /* LEFT: Config */
  .config-panel{
    width:380px;flex-shrink:0;border-right:1px solid var(--border-light);
    background:var(--bg-secondary);overflow-y:auto;
    display:flex;flex-direction:column;
  }
  .config-panel::-webkit-scrollbar{width:4px;}
  .config-panel::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}
  .config-header{padding:24px 24px 16px;border-bottom:1px solid var(--border-light);}
  .config-title{font-family:'Noto Serif SC',serif;font-size:17px;font-weight:500;letter-spacing:1px;color:var(--text-primary);margin-bottom:4px;}
  .config-sub{font-size:11px;color:var(--text-secondary);}
  .jimeng-badge{
    display:inline-flex;align-items:center;gap:6px;margin-top:10px;
    padding:5px 12px;border-radius:20px;
    background:rgba(124,58,237,0.15);border:1px solid rgba(18,109,255,0.2);
    font-size:11px;color:var(--gold);
  }
  .config-body{padding:20px 24px;display:flex;flex-direction:column;gap:18px;flex:1;}
  .form-label{font-size:12px;color:var(--text-secondary);margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;}
  .form-label span{font-size:10px;color:var(--text-muted);}
  .form-textarea{
    width:100%;padding:12px 14px;border-radius:10px;
    border:1px solid var(--border);background:var(--bg-card);
    color:var(--text-primary);font-size:13px;resize:none;
    font-family:'Noto Sans SC',sans-serif;outline:none;
    transition:border-color 0.2s;line-height:1.6;
  }
  .form-textarea:focus{border-color:var(--gold);}
  .form-textarea::placeholder{color:var(--text-muted);}
  .form-select{
    width:100%;padding:10px 14px;border-radius:8px;
    border:1px solid var(--border);background:var(--bg-card);
    color:var(--text-primary);font-size:13px;
    font-family:'Noto Sans SC',sans-serif;outline:none;cursor:pointer;
  }
  .upload-zone{
    border:1px dashed rgba(18,109,255,0.3);border-radius:10px;
    padding:20px;text-align:center;cursor:pointer;
    transition:all 0.2s;background:var(--bg-card);position:relative;overflow:hidden;
  }
  .upload-zone:hover{border-color:var(--gold);background:var(--gold-pale);}
  .upload-zone input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}
  .upload-icon{width:36px;height:36px;margin:0 auto 8px;border-radius:8px;background:var(--gold-pale2);display:flex;align-items:center;justify-content:center;}
  .upload-icon svg{width:20px;height:20px;stroke:var(--gold);}
  .upload-text{font-size:12px;color:var(--text-secondary);}
  .upload-hint{font-size:11px;color:var(--text-muted);margin-top:4px;}
  .picked-image-remove{
    position:absolute;top:7px;right:7px;z-index:2;width:22px;height:22px;border-radius:50%;
    border:1px solid rgba(18,109,255,0.32);background:#fff;color:var(--gold);cursor:pointer;
    font-size:17px;line-height:18px;display:flex;align-items:center;justify-content:center;
    font-family:Arial,sans-serif;transition:all 0.15s;
  }
  .picked-image-remove:hover{background:var(--gold);border-color:var(--gold);color:#fff;}
  .material-gallery{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px;}
  .material-thumb{
    position:relative;width:84px;height:84px;border-radius:10px;overflow:hidden;
    border:1px solid var(--border-light);background:var(--bg-card);
  }
  .material-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
  .material-thumb-remove{
    position:absolute;top:4px;right:4px;z-index:2;width:20px;height:20px;border-radius:50%;
    border:none;background:rgba(0,0,0,0.5);color:#fff;cursor:pointer;padding:0;
    font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center;
    font-family:Arial,sans-serif;transition:background 0.15s;
  }
  .material-thumb-remove:hover{background:var(--gold);}
  .param-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .tab-switcher{display:flex;gap:6px;padding:4px;background:var(--bg-card);border-radius:8px;border:1px solid var(--border-light);}
  .tab-sw-btn{
    flex:1;padding:8px;border-radius:6px;border:none;
    font-size:12px;cursor:pointer;font-family:'Noto Sans SC',sans-serif;
    transition:all 0.15s;background:none;color:var(--text-secondary);
  }
  .tab-sw-btn.active{background:var(--gold-pale);color:var(--gold);border:1px solid var(--border);}
  .style-chips{display:flex;gap:8px;flex-wrap:wrap;}
  .style-chip{
    padding:6px 14px;border-radius:20px;border:1px solid var(--border);
    background:none;color:var(--text-secondary);font-size:11px;cursor:pointer;
    font-family:'Noto Sans SC',sans-serif;transition:all 0.15s;
  }
  .style-chip:hover,.style-chip.active{border-color:var(--gold);color:var(--gold);background:var(--gold-pale);}
  .slider-wrapper{position:relative;}
  .slider-row{display:flex;align-items:center;gap:12px;}
  .range-slider{flex:1;accent-color:var(--gold);}
  .slider-val{font-size:13px;color:var(--gold);font-weight:500;min-width:32px;text-align:right;}
  .config-footer{padding:20px 24px;border-top:1px solid var(--border-light);}
  .gen-btn{
    width:100%;padding:14px;border-radius:10px;border:none;
    background:linear-gradient(135deg,var(--gold) 0%,var(--gold-dark) 100%);
    color:white;font-size:15px;font-weight:500;cursor:pointer;
    font-family:'Noto Serif SC',serif;letter-spacing:2px;
    transition:all 0.2s;display:flex;align-items:center;justify-content:center;gap:10px;
  }
  .gen-btn:hover{opacity:0.88;transform:translateY(-1px);}
  .gen-btn svg{width:18px;height:18px;}
  .coins-info{text-align:center;font-size:11px;color:var(--text-muted);margin-top:10px;}

  /* RIGHT: Preview */
  .right-area{flex:1;display:flex;flex-direction:column;overflow:hidden;}

  /* Preview */
  .video-preview-area{
    flex:1;display:flex;align-items:center;justify-content:center;
    padding:32px;position:relative;overflow:hidden;
  }
  .video-frame{
    width:min(100%,960px);
    min-height:min(405px,calc(100vh - 160px));
    background:var(--bg-card);border-radius:16px;
    border:1px solid var(--border);
    display:flex;align-items:center;justify-content:center;
    position:relative;overflow:hidden;
    box-shadow:0 18px 48px rgba(15,23,42,0.08);
  }
  .video-frame-placeholder{
    display:flex;flex-direction:column;align-items:center;gap:16px;
    color:var(--text-muted);text-align:center;
  }
  .video-frame-placeholder svg{width:48px;height:48px;stroke:rgba(18,109,255,0.25);}
  .video-frame-placeholder p{font-size:13px;line-height:1.7;}
  .video-generating{
    display:none;flex-direction:column;align-items:center;gap:16px;
    text-align:center;
  }
  .video-progress-ring{position:relative;width:80px;height:80px;}
  .ring-bg{fill:none;stroke:var(--border-light);}
  .ring-fill{fill:none;stroke:var(--gold);stroke-linecap:round;stroke-dasharray:220;stroke-dashoffset:220;animation:fillRing 8s ease-out forwards;}
  @keyframes fillRing{to{stroke-dashoffset:30;}}
  .ring-text{font-size:14px;fill:var(--gold);font-family:'Noto Sans SC',sans-serif;}
  .video-gen-label{font-size:13px;color:var(--text-secondary);}
  .video-gen-steps{display:flex;flex-direction:column;gap:8px;text-align:left;min-width:200px;}
  .gen-step{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);}
  .gen-step.done{color:var(--success-text,#4ade80);}
  .gen-step.active{color:var(--text-secondary);}
  .gen-step-dot{width:8px;height:8px;border-radius:50%;background:var(--border);flex-shrink:0;}
  .gen-step.done .gen-step-dot{background:#4ade80;}
  .gen-step.active .gen-step-dot{background:var(--gold);animation:pulse 1s infinite;}
  .video-result{display:none;flex-direction:column;align-items:center;gap:16px;width:100%;min-width:0;padding:16px;}
  .video-player-wrapper{width:100%;max-width:900px;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden;position:relative;}
  .video-controls{
    position:absolute;bottom:0;left:0;right:0;
    background:linear-gradient(transparent,rgba(0,0,0,0.8));
    padding:20px 16px 12px;display:flex;align-items:center;gap:12px;
  }
  .play-pause-btn{
    width:32px;height:32px;border-radius:50%;
    background:rgba(18,109,255,0.9);border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
  }
  .play-pause-btn svg{width:14px;height:14px;fill:white;}
  .progress-bar{flex:1;height:3px;background:rgba(255,255,255,0.2);border-radius:2px;cursor:pointer;}
  .progress-fill{height:100%;width:0%;background:var(--gold);border-radius:2px;transition:width 0.1s;}
  .time-display{font-size:11px;color:rgba(255,255,255,0.6);min-width:70px;}
  .volume-btn{width:28px;height:28px;border:none;background:none;cursor:pointer;display:flex;align-items:center;justify-content:center;}
  .volume-btn svg{width:16px;height:16px;stroke:rgba(255,255,255,0.6);}
  .video-dummy-bg{width:100%;height:100%;background:linear-gradient(135deg,#1A1408 0%,#0D0C0A 50%,#1E1810 100%);display:flex;align-items:center;justify-content:center;}
  .video-dummy-icon{opacity:0.15;}
  .video-dummy-icon svg{width:80px;height:80px;stroke:var(--gold);}
  .video-result-actions{display:flex;gap:10px;justify-content:center;}
  .vra-btn{
    padding:9px 24px;border-radius:8px;font-size:13px;cursor:pointer;
    font-family:'Noto Sans SC',sans-serif;transition:all 0.15s;
  }
  .vra-btn.outline{border:1px solid var(--border);background:none;color:var(--text-secondary);}
  .vra-btn.outline:hover{border-color:var(--gold);color:var(--gold);}
  .vra-btn.primary{border:none;background:linear-gradient(135deg,var(--gold) 0%,var(--gold-dark) 100%);color:white;font-weight:500;}
  .vra-btn.primary:hover{opacity:0.85;}

  @media(max-width:1080px){
    nav{grid-template-columns:auto 1fr auto;padding:0 18px;}
    .nav-logo-text{display:none;}
    .nav-tab{padding:7px 12px;}
    .config-panel{width:340px;}
    .video-preview-area{padding:24px;}
  }

  @media(max-width:860px){
    html,body{height:100%;overflow:hidden;}
    nav{
      position:relative;height:88px;min-height:88px;display:grid;
      grid-template-columns:auto 1fr auto;grid-template-rows:48px 40px;align-items:center;
      padding:0 10px;gap:0 6px;
    }
    .nav-logo{justify-self:center;grid-column:2;grid-row:1;}
    .nav-logo-mark{width:96px;height:30px;}
    .nav-right{justify-self:end;width:auto;gap:6px;grid-column:3;grid-row:1;}
    .nav-tabs{grid-column:1/-1;grid-row:2;display:flex;justify-self:stretch;gap:6px;overflow-x:auto;padding:3px 2px 7px;scrollbar-width:none;}
    .nav-tabs::-webkit-scrollbar{display:none;}
    .nav-tab{flex:1 1 0;min-width:0;padding:6px;font-size:12px;gap:5px;border-radius:16px;}
    .nav-tab svg{width:13px;height:13px;}
    .dealer-chip{display:none;}
    .mobile-drawer-btn{display:flex;grid-column:1;grid-row:1;}
    .mobile-route-btn{display:none;}
    body.mobile-route-open .mobile-route-mask{display:block;position:fixed;inset:0;z-index:240;background:transparent;}
    body.mobile-route-open .mobile-route-menu{display:block;}
    body.mobile-drawer-open{overflow:hidden;}
    body.mobile-drawer-open .mobile-asset-drawer{display:block;transform:translateX(0);}
    .mobile-drawer-mask{position:fixed;left:0;right:0;top:88px;bottom:0;z-index:250;background:rgba(11,16,32,0.28);backdrop-filter:blur(3px);}
    body.mobile-drawer-open .mobile-drawer-mask{display:block;}
    .mobile-asset-drawer{display:block;}
    .workspace-btn{display:none !important;}
    .nav-recharge-btn{height:30px;padding:0 10px;gap:4px;font-size:12px;}
    .nav-recharge-coin{width:14px;height:14px;}
    .avatar-btn{width:32px;height:32px;border-width:1px;font-size:12px;flex-shrink:0;}

    .page-body{
      flex-direction:column;overflow-y:auto;overflow-x:hidden;min-height:0;
      background:rgba(238,229,218,0.58);
    }
    .config-panel{
      width:100%;flex:0 0 auto;border-right:0;border-bottom:1px solid var(--border-light);
      overflow:visible;background:transparent;min-height:calc(100dvh - 88px);
    }
    .config-header{padding:16px 12px 10px;border-bottom:0;}
    .config-title{font-size:20px;line-height:1.35;}
    .config-sub{font-size:12px;line-height:1.65;margin-top:2px;}
    .config-body{padding:10px 12px 12px;gap:14px;}
    .form-label{font-size:12px;margin-bottom:7px;}
    .form-label span{font-size:10px;}
    .tab-switcher{height:42px;padding:3px;border-radius:9px;background:#fff;}
    .tab-sw-btn{font-size:13px;border-radius:8px;}
    .form-textarea{height:116px;border-radius:10px;padding:14px;background:#fff;font-size:13px;}
    #mode-image .upload-zone{min-height:122px;border-radius:10px;padding:20px 14px;}
    #mode-image .form-textarea{height:108px;}
    .upload-icon{width:38px;height:38px;border-radius:10px;}
    .upload-text{font-size:13px;}
    .upload-hint{font-size:11px;}
    .param-grid{display:flex;flex-direction:column;gap:10px;}
    .form-select{height:40px;border-radius:8px;background:#fff;padding:0 16px;}
    .config-footer{padding:12px 12px 18px;border-top:0;}
    .gen-btn{height:48px;border-radius:10px;font-size:15px;}
    .coins-info{font-size:10px;margin-top:8px;}
    .right-area{display:none;flex:0 0 auto;min-height:0;overflow:visible;}
    body.video-has-preview .right-area{display:flex;}
    .video-preview-area{min-height:260px;padding:12px;align-items:flex-start;}
    .video-frame{max-width:none;min-height:0;width:100%;}
    .video-result{padding:10px;}
    .video-frame-placeholder p{font-size:12px;}
    .video-gen-steps{min-width:0;width:100%;max-width:260px;}
    .video-result-actions{width:100%;flex-wrap:wrap;}
    .vra-btn{flex:1;min-width:136px;text-align:center;}
  }

  @media(max-width:560px){
    nav{padding-left:8px;padding-right:8px;}
    .config-header{padding:16px 12px 10px;}
    .config-body{padding:10px 12px 12px;}
    .config-footer{padding:12px 12px 18px;}
    .param-grid{display:flex;flex-direction:column;}
    .tab-switcher{gap:4px;}
    .tab-sw-btn{font-size:12px;padding:8px 4px;}
    .form-textarea{min-height:0;height:116px;}
    .right-area{min-height:0;}
    .video-preview-area{min-height:240px;padding:12px;}
    .video-frame{aspect-ratio:4/3;}
    .video-result{gap:10px;padding:8px;}
    .video-player-wrapper{border-radius:10px;}
    .video-controls{gap:8px;padding:18px 10px 10px;}
    .time-display{min-width:54px;font-size:10px;}
    .volume-btn{display:none;}
  }



  /* Jike AI refresh */
  nav{box-shadow:0 10px 30px rgba(18,109,255,0.06);}
  .nav-logo-mark{filter:drop-shadow(0 6px 12px rgba(18,109,255,0.12));}
  .config-panel,.mobile-asset-drawer{
    background:linear-gradient(180deg,rgba(238,243,255,0.98),rgba(246,248,252,0.96));
  }
  .right-area{background:linear-gradient(180deg,rgba(248,251,255,0.94),rgba(246,248,252,0.98));}
  .form-textarea,.form-select,.upload-zone,.tab-switcher,.video-frame{
    box-shadow:0 12px 34px rgba(15,23,42,0.05);
  }
  .gen-btn,.vra-btn.primary{box-shadow:0 12px 26px rgba(18,109,255,0.2);}
  .jimeng-badge{
    background:linear-gradient(135deg,rgba(18,109,255,0.11),rgba(124,58,237,0.12));
  }