.player-bar{position:fixed;bottom:0;left:0;right:0;height:72px;background:var(--color-bg-secondary);border-top:1px solid var(--color-border-default);display:flex;align-items:center;padding:0 var(--space-6);z-index:var(--z-player);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.player-bar:hover{box-shadow:0 -2px 10px #0000004d}.player-left{flex:0 0 200px;display:flex;align-items:center;overflow:hidden}.player-song-title{font-size:var(--font-size-base);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:var(--font-weight-medium);transition:color var(--transition-fast)}.player-song-title:hover{color:var(--color-accent)}.player-center{flex:0 0 160px;display:flex;align-items:center;justify-content:center;gap:var(--space-4)}.player-control-icon{font-size:var(--font-size-xl);color:var(--color-text-tertiary);cursor:pointer;transition:all var(--transition-base);padding:var(--space-1);border-radius:50%}.player-control-icon:hover{color:var(--color-text-primary);transform:scale(1.15);background:#ffffff14}.player-control-icon:active{transform:scale(.95)}.player-control-main{font-size:36px;color:var(--color-text-primary);transition:all var(--transition-base);padding:var(--space-1);border-radius:50%}.player-control-main:hover{transform:scale(1.1);background:#ffffff14;color:var(--color-accent)}.player-control-main:active{transform:scale(.95)}.player-right{flex:1;display:flex;align-items:center;justify-content:flex-end;gap:var(--space-2)}.player-time{font-size:var(--font-size-xs);color:var(--color-text-tertiary);white-space:nowrap;min-width:40px;font-weight:var(--font-weight-medium)}.player-progress{flex:1;max-width:300px;margin:0 var(--space-2)}.player-volume-icon{font-size:var(--font-size-base);color:var(--color-text-tertiary);cursor:pointer;transition:all var(--transition-base);padding:var(--space-1)}.player-volume-icon:hover{color:var(--color-text-primary);transform:scale(1.1)}.player-volume{width:80px;margin:0}.lyrics-panel{position:fixed;bottom:72px;left:0;right:0;max-height:400px;background:var(--color-bg-secondary);border-top:1px solid var(--color-border-default);z-index:calc(var(--z-player) - 1);display:flex;flex-direction:column;box-shadow:0 -4px 20px #00000080;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.lyrics-panel-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-6);border-bottom:1px solid var(--color-border-default)}.lyrics-panel-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.lyrics-panel-body{flex:1;overflow-y:auto;padding:var(--space-6)}.lyrics-line{font-size:var(--font-size-lg);line-height:2;color:var(--color-text-secondary);text-align:center;transition:all var(--transition-fast);cursor:default;padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm)}.lyrics-line:hover{color:var(--color-text-primary);background:#ffffff08}@media(max-width:768px){.player-bar{padding:0 var(--space-3);height:64px}.player-left{flex:0 0 100px}.player-song-title{font-size:var(--font-size-sm)}.player-center{flex:0 0 100px;gap:var(--space-2)}.player-control-main{font-size:28px}.player-right{gap:var(--space-1)}.player-progress{max-width:80px}.player-volume,.player-volume-icon{display:none}.player-time{font-size:11px;min-width:35px}.lyrics-panel{max-height:1600px}.lyrics-panel-header{padding:var(--space-3) var(--space-3)}.lyrics-panel-body{padding:var(--space-4)}.lyrics-line{font-size:var(--font-size-base);line-height:2.2}}.app-layout{min-height:100vh;background:var(--color-bg-primary)}.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-6);height:64px;background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border-default);position:sticky;top:0;z-index:var(--z-sticky);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.app-header:hover{box-shadow:var(--shadow-sm)}.header-left{display:flex;align-items:center;gap:var(--space-8)}.logo-area{display:flex;align-items:center;cursor:pointer;transition:all var(--transition-base);padding:var(--space-1) 0}.logo-area:hover{transform:scale(1.02)}.logo-icon{font-size:var(--font-size-2xl);color:var(--color-text-primary);margin-right:var(--space-2);transition:transform var(--transition-base)}.logo-area:hover .logo-icon{transform:rotate(-5deg) scale(1.1)}.logo-text-group{display:flex;flex-direction:column;line-height:var(--line-height-tight)}.logo-text{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);letter-spacing:2px;transition:color var(--transition-fast)}.logo-area:hover .logo-text{color:var(--color-accent)}.logo-subtitle{font-size:var(--font-size-xs);color:var(--color-text-muted);letter-spacing:1px}.header-nav{display:flex;align-items:center;gap:var(--space-2)}.nav-tab{position:relative;display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 var(--space-4);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-tertiary);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;overflow:hidden}.nav-tab:before{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:0;height:2px;background:var(--color-accent);transition:width var(--transition-base)}.nav-tab:hover{background:var(--color-bg-elevated);color:var(--color-text-primary);transform:translateY(-1px)}.nav-tab:hover:before{width:60%}.nav-tab-active{background:var(--color-bg-tertiary)!important;color:var(--color-text-primary)!important;font-weight:var(--font-weight-semibold)!important;box-shadow:var(--shadow-sm)}.nav-tab-active:before{width:100%!important;bottom:0}.nav-tab-active:hover{background:var(--color-bg-elevated)!important;transform:translateY(-1px);box-shadow:var(--shadow-md)}.nav-tab:active:not(.nav-tab-active){transform:scale(.97)}.nav-points-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--color-text-muted);color:var(--color-text-primary);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);padding:1px 7px;border-radius:var(--radius-full);line-height:1.6;margin-left:var(--space-1);transition:all var(--transition-base)}.nav-points-badge:hover{background:var(--color-text-tertiary);transform:scale(1.05)}.header-right{display:flex;align-items:center;gap:var(--space-3)}.user-avatar{cursor:pointer;background:var(--color-bg-tertiary);transition:all var(--transition-base);border:2px solid transparent}.user-avatar:hover{border-color:var(--color-border-hover);transform:scale(1.08);box-shadow:var(--shadow-sm)}.mobile-menu-btn{display:none;color:var(--color-text-primary);transition:all var(--transition-base)}.mobile-menu-btn:hover{color:var(--color-accent);transform:rotate(90deg)}.mobile-menu-btn:active{transform:scale(.95) rotate(90deg)}.app-content{background:var(--color-bg-primary);min-height:calc(100vh - 64px)}.drawer-menu{display:flex;flex-direction:column;gap:var(--space-1)}.drawer-menu-item{position:relative;display:flex;align-items:center;gap:var(--space-3);height:44px;padding:0 var(--space-3);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-tertiary);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-base);text-align:left;overflow:hidden}.drawer-menu-item:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--color-accent);border-radius:0 2px 2px 0;transition:height var(--transition-base)}.drawer-menu-item:hover{background:var(--color-bg-elevated);color:var(--color-text-primary);transform:translate(4px)}.drawer-menu-item:hover:before{height:60%}.drawer-menu-item-active{background:var(--color-bg-tertiary)!important;color:var(--color-text-primary)!important;font-weight:var(--font-weight-semibold)!important}.drawer-menu-item-active:before{height:80%!important}.drawer-menu-item-active:hover{background:var(--color-bg-elevated)!important;transform:translate(4px)}.drawer-menu-item:active:not(.drawer-menu-item-active){transform:translate(2px) scale(.99)}.drawer-points-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--color-text-muted);color:var(--color-text-primary);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);padding:1px 7px;border-radius:var(--radius-full);line-height:1.6;margin-left:auto;transition:all var(--transition-base)}.drawer-footer{margin-top:var(--space-6);padding-top:var(--space-4);border-top:1px solid var(--color-border-default);display:flex;flex-direction:column;gap:var(--space-3)}.drawer-user{display:flex;align-items:center;gap:var(--space-2);margin-top:var(--space-2);padding:var(--space-2);border-radius:var(--radius-md);transition:all var(--transition-base)}.drawer-user:hover{background:var(--color-bg-elevated)}.drawer-user-name{flex:1;color:var(--color-text-primary);font-size:var(--font-size-base);font-weight:var(--font-weight-medium)}.app-footer{background:var(--color-bg-secondary);border-top:1px solid var(--color-border-default);padding:var(--space-4) var(--space-6)}.footer-content{max-width:1200px;margin:0 auto}.footer-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted)}.footer-item{white-space:nowrap}.footer-divider{color:var(--color-border-hover);margin:0 var(--space-1)}.footer-link{color:var(--color-text-muted);text-decoration:none;display:inline-flex;align-items:center;gap:var(--space-1);transition:all var(--transition-base)}.footer-link:hover{color:var(--color-text-primary);transform:translateY(-1px)}.footer-icon{font-size:var(--font-size-xs)}@media(max-width:768px){.app-header{padding:0 var(--space-3)}.header-nav{display:none}.mobile-menu-btn{display:inline-flex}.logo-area{margin-right:0}.logo-text{font-size:var(--font-size-lg)}.app-footer{padding:var(--space-3) var(--space-4)}.footer-row{flex-direction:column;gap:var(--space-2);text-align:center}.footer-divider{display:none}}.home-page{padding-top:var(--space-8)}.home-page .ant-row{align-items:stretch}.home-page .ant-col{display:flex}.create-card{background:var(--color-bg-secondary);border:1px solid var(--color-border-default);border-radius:var(--radius-lg);flex:1;display:flex;flex-direction:column;transition:border-color var(--transition-base),box-shadow var(--transition-base)}.create-card:hover{border-color:var(--color-border-hover);box-shadow:var(--shadow-sm)}.create-card .ant-card-body{padding:var(--space-6);flex:1;display:flex;flex-direction:column}.create-card .ant-card-body>.form-group:last-of-type{flex:1;display:flex;flex-direction:column}.create-card .ant-card-body>.form-group:last-of-type .ant-input{flex:1;min-height:280px}.section-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);letter-spacing:-.3px}.form-group{margin-bottom:var(--space-4)}.form-label{display:block;font-size:var(--font-size-base);color:var(--color-text-secondary);margin-bottom:var(--space-2);font-weight:var(--font-weight-medium)}.options-row{margin-bottom:var(--space-4)}.options-row .ant-col{display:flex;flex-direction:column}.options-row .form-label{display:flex;align-items:center;height:32px;margin-bottom:var(--space-2);font-size:var(--font-size-base);color:var(--color-text-secondary);font-weight:var(--font-weight-medium)}.options-row .ant-select,.form-group .ant-select{width:100%}.options-row .ant-select .ant-select-selector,.form-group .ant-select .ant-select-selector{height:40px!important;display:flex;align-items:center}.prompt-group{margin-bottom:var(--space-5)}.instrument-tags{display:flex;flex-wrap:wrap;gap:var(--space-2)}.instrument-tag{cursor:pointer;padding:var(--space-1) var(--space-3);border-radius:var(--radius-sm);border:1.5px solid var(--color-border-default);background:transparent;color:var(--color-text-tertiary);transition:all var(--transition-base);-webkit-user-select:none;user-select:none;font-size:var(--font-size-sm);position:relative;overflow:hidden}.instrument-tag:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:var(--color-accent);opacity:0;transition:opacity var(--transition-base);z-index:0}.instrument-tag>span,.instrument-tag>*{position:relative;z-index:1}.instrument-tag:hover{border-color:var(--color-border-hover);color:var(--color-text-primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.instrument-tag-selected{background:var(--color-accent)!important;border-color:var(--color-accent)!important;color:var(--color-bg-primary)!important;font-weight:var(--font-weight-semibold);transform:translateY(-1px);box-shadow:var(--shadow-md)}.instrument-tag-selected:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.instrument-tag:active:not(.instrument-tag-selected){transform:scale(.96)}.right-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-2);padding-bottom:var(--space-4);border-bottom:1px solid transparent}.right-panel-header .section-title{margin-bottom:0;flex-shrink:0;font-size:var(--font-size-xl)}.header-actions{display:flex;align-items:center;gap:var(--space-4);flex-shrink:0}.lyrics-generate-area{display:flex;flex-direction:column;align-items:center;flex-shrink:0;height:48px;justify-content:flex-start}.generate-lyrics-btn{font-size:var(--font-size-sm);background:var(--color-bg-tertiary);border-color:var(--color-border-hover);color:var(--color-text-primary)!important;border-radius:var(--radius-sm);padding:var(--space-1) var(--space-3);height:26px;font-weight:var(--font-weight-medium);letter-spacing:.5px;line-height:1;transition:all var(--transition-base)}.generate-lyrics-btn:hover:not(:disabled){background:var(--color-bg-elevated);border-color:var(--color-text-tertiary);color:var(--color-text-primary)!important;transform:translateY(-1px);box-shadow:var(--shadow-sm)}.generate-lyrics-btn:active:not(:disabled){transform:scale(.97)}.generate-lyrics-btn:disabled,.generate-lyrics-btn.ant-btn-loading{color:var(--color-text-disabled)!important;background:var(--color-bg-secondary);border-color:var(--color-border-subtle);cursor:not-allowed;transform:none!important}.lyrics-cost-hint{font-size:var(--font-size-xs);color:var(--color-text-muted);white-space:nowrap;margin-top:var(--space-1)}.header-instrumental-switch{display:flex;flex-direction:column;align-items:center;flex-shrink:0;position:relative;height:48px;justify-content:flex-start}.instrumental-switch-row{display:flex;align-items:center;gap:var(--space-2);height:26px}.no-lyrics-hint{font-size:var(--font-size-xs);color:var(--color-text-muted);margin-top:var(--space-1);white-space:nowrap}.switch-label{font-size:var(--font-size-sm);color:var(--color-text-tertiary);font-weight:var(--font-weight-medium)}.instrumental-switch{min-width:44px!important;height:24px!important;background-color:var(--color-bg-tertiary)!important;border:none!important;border-radius:12px!important;transition:all var(--transition-base)!important}.instrumental-switch .ant-switch-handle{width:20px!important;height:20px!important;top:2px!important;left:2px!important;background-color:var(--color-text-muted)!important;border:none!important;border-radius:50%!important;box-shadow:none!important;outline:none!important;transition:all var(--transition-base)!important}.instrumental-switch .ant-switch-handle:before{display:none!important}.instrumental-switch.ant-switch-checked{background-color:var(--color-accent)!important;box-shadow:var(--shadow-glow)}.instrumental-switch.ant-switch-checked .ant-switch-handle{left:calc(100% - 22px)!important;background-color:var(--color-bg-primary)!important}.instrumental-switch:hover:not(.ant-switch-disabled){background-color:var(--color-bg-elevated)!important}.instrumental-switch.ant-switch-checked:hover:not(.ant-switch-disabled){background-color:var(--color-accent-hover)!important}.instrumental-switch.ant-switch-disabled{opacity:.4!important;cursor:not-allowed!important}.lyrics-group{flex:1;display:flex;flex-direction:column;margin-bottom:var(--space-4)}.lyrics-textarea{font-size:var(--font-size-base);line-height:var(--line-height-relaxed);flex:1;min-height:280px;resize:none;background:var(--color-bg-tertiary)!important;border-color:var(--color-border-hover)!important;color:var(--color-text-primary)!important;border-radius:var(--radius-md)!important;padding:var(--space-3)!important;transition:all var(--transition-base)}.lyrics-textarea:focus{border-color:var(--color-text-tertiary)!important;box-shadow:0 0 0 3px #99999926!important}.lyrics-textarea::placeholder{color:var(--color-text-disabled)}.btn-with-cost{display:flex;flex-direction:column;align-items:center;gap:var(--space-1)}.music-cost-hint{font-size:var(--font-size-sm);color:var(--color-text-muted)}.model-info-hint{font-size:var(--font-size-xs);color:var(--color-info);margin-top:calc(var(--space-1) * -.5);font-weight:var(--font-weight-medium)}.action-buttons{display:flex;flex-direction:column;gap:var(--space-2)}.btn-music{background:var(--color-bg-tertiary);border-color:var(--color-border-hover);color:var(--color-text-primary)!important;height:64px;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);letter-spacing:1px;border-radius:var(--radius-md);transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.btn-music:hover:not(:disabled):not(.ant-btn-disabled){background:var(--color-bg-elevated);border-color:var(--color-text-tertiary);color:var(--color-text-primary)!important;transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-music:active:not(:disabled):not(.ant-btn-disabled){transform:scale(.98)}.btn-music.ant-btn-loading,.btn-music.ant-btn-loading .ant-btn-loading-icon,.btn-music span{color:var(--color-text-primary)!important}@media(max-width:768px){.home-page{padding-top:var(--space-4)}.create-card .ant-card-body{padding:var(--space-4)}.section-title{font-size:var(--font-size-xl)}.right-panel-header{flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-2)}.right-panel-header .section-title{font-size:var(--font-size-lg)}.header-actions{gap:var(--space-3)}.instrument-tags{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-2)}.instrument-tag{text-align:center;font-size:var(--font-size-xs);padding:var(--space-1) var(--space-1)}.create-card .ant-card-body>.form-group:last-of-type .ant-input{min-height:560px}.lyrics-textarea{min-height:560px}.btn-music{height:56px;font-size:var(--font-size-base)}}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-6);background:var(--color-bg-primary)}.auth-card{width:100%;max-width:400px;background:var(--color-bg-secondary);border:1px solid var(--color-border-default);border-radius:var(--radius-lg);padding:var(--space-10) var(--space-8);transition:border-color var(--transition-base),box-shadow var(--transition-base);position:relative;overflow:hidden}.auth-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--color-accent);opacity:.5}.auth-card:hover{border-color:var(--color-border-hover);box-shadow:var(--shadow-lg)}.auth-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);text-align:center;margin-bottom:var(--space-1);letter-spacing:-.5px}.auth-subtitle{font-size:var(--font-size-base);color:var(--color-text-tertiary);text-align:center;margin-bottom:var(--space-8);font-weight:var(--font-weight-normal)}.auth-card .ant-btn-primary{background:var(--color-accent)!important;border-color:var(--color-accent)!important;color:var(--color-bg-primary)!important;font-weight:var(--font-weight-semibold)!important;font-size:var(--font-size-lg);height:48px;letter-spacing:1px;border-radius:var(--radius-md)!important;box-shadow:var(--shadow-md);transition:all var(--transition-base)!important}.auth-card .ant-btn-primary:hover:not(:disabled):not(.ant-btn-disabled){background:var(--color-accent-hover)!important;border-color:var(--color-accent-hover)!important;color:var(--color-bg-primary)!important;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.auth-card .ant-btn-primary:active:not(:disabled):not(.ant-btn-disabled){transform:scale(.98)}.auth-card .ant-btn-primary:disabled,.auth-card .ant-btn-primary.ant-btn-disabled{background:var(--color-bg-tertiary)!important;border-color:var(--color-border-default)!important;color:var(--color-text-disabled)!important;box-shadow:none!important;cursor:not-allowed!important;transform:none!important}.auth-card .ant-input,.auth-card .ant-input-password{background:var(--color-bg-tertiary)!important;border-color:var(--color-border-hover)!important;color:var(--color-text-primary)!important;height:48px;border-radius:var(--radius-md)!important;font-size:var(--font-size-base);transition:all 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