@import "/assets/css/variables.css";.split-translator{--st-overlay-light:rgba(0,0,0,.3);--st-overlay-dark:rgba(0,0,0,.5);--st-hover-dark:hsla(0,0%,100%,.1);--st-hover-dark-active:hsla(0,0%,100%,.14);--color-bg:#f8f8f6;--color-text-primary:#131313;--color-text-secondary:#73716c;--color-text-tertiary:#8f8e8a;--transition:180ms ease}*,:after,:before{box-sizing:border-box;margin:0;padding:0;scrollbar-color:rgba(0,0,0,.08) transparent;scrollbar-width:thin}::-webkit-scrollbar{height:4px;width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(0,0,0,.08);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.15)}body,html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-bg);color:var(--color-text-primary);font-family:var(--font-family);height:100%;overflow:hidden}button{background:transparent;border:none;color:inherit;cursor:pointer;font-family:inherit;font-size:inherit;line-height:1}button:disabled{cursor:not-allowed}.split-translator{background:var(--color-bg);display:flex;flex-direction:column;gap:var(--space-3);height:100vh;height:100dvh;padding:var(--space-4) var(--space-5)}.st-language-bar{align-items:center;background:var(--color-card);border-radius:8px;display:flex;flex-direction:row;flex-shrink:0;gap:var(--space-3);height:56px;min-height:56px;padding:0 var(--space-5);z-index:20}.st-lang-group,.st-language-bar{position:relative}.st-lang-selector{align-items:center;border:1px solid transparent;border-radius:var(--radius-md);color:var(--color-text-primary);display:flex;font-size:var(--font-size-sm);font-weight:600;gap:var(--space-2);padding:var(--space-2) var(--space-3);transition:background var(--transition),border-color var(--transition);white-space:nowrap}.st-lang-selector:hover{background:rgba(0,0,0,.05);border-color:rgba(0,0,0,.12)}.st-lang-selector.open{background:rgba(0,0,0,.06);border-color:rgba(0,0,0,.15)}.st-flag{border-radius:50%;box-shadow:0 1px 3px rgba(0,0,0,.1);flex-shrink:0;height:22px;object-fit:cover;width:22px}.st-lang-name{white-space:nowrap}.st-chevron{flex-shrink:0;transition:transform var(--transition)}.st-lang-selector.open .st-chevron{transform:rotate(180deg)}.st-lang-selector:disabled{opacity:.5;pointer-events:none}.st-lang-dropdown{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);display:none;flex-direction:column;left:0;max-height:70vh;min-width:200px;overflow-y:auto;padding:var(--space-1);position:absolute;top:calc(100% + var(--space-1));z-index:100}.st-lang-dropdown.open{display:flex}.st-lang-search-wrap{border-bottom:1px solid var(--color-border);flex-shrink:0;padding:var(--space-1) var(--space-2) var(--space-2)}.st-lang-search{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);outline:none;padding:var(--space-2) var(--space-3);transition:border-color var(--transition);width:100%}.st-lang-search::placeholder{color:var(--color-text-secondary)}.st-lang-search:focus{border-color:rgba(0,0,0,.3)}.st-lang-list{flex:1;min-height:44px;overflow-y:auto}.st-lang-option{align-items:center;border-radius:var(--radius-sm);color:var(--color-text-primary);display:flex;font-size:var(--font-size-sm);gap:var(--space-2);padding:var(--space-2) var(--space-3);transition:background var(--transition);width:100%}.st-lang-option:hover{background:rgba(0,0,0,.05)}.st-lang-option.selected{background:rgba(0,0,0,.06);color:var(--color-text-primary);font-weight:600}.st-lang-custom{border-top:1px solid var(--color-border);color:var(--color-text-primary);font-weight:500;margin-top:var(--space-1);padding-top:var(--space-2)}.st-lang-expand-btn{align-items:center;background:none;border:none;border-radius:4px;color:var(--color-text-secondary,#888);cursor:pointer;display:flex;justify-content:center;margin:0;padding:4px 0;transition:color .18s ease,background .18s ease;width:100%}.st-lang-expand-btn:hover{background:rgba(0,0,0,.05);color:var(--color-text-primary)}.st-lang-expand-icon{transition:transform .18s ease}.st-lang-expand-btn--open .st-lang-expand-icon{transform:rotate(180deg)}.st-lang-extended{display:none;flex-direction:column}.st-lang-extended.st-lang-extended--open,.st-lang-extended.st-lang-extended--search{display:flex}.st-swap-btn{align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-secondary);display:flex;flex-shrink:0;height:36px;justify-content:center;transition:all var(--transition);width:36px}.st-swap-btn:hover:not(:disabled){background:rgba(0,0,0,.05);border-color:rgba(0,0,0,.2);box-shadow:0 2px 6px rgba(0,0,0,.1);color:var(--color-text-primary)}.st-swap-btn:disabled{opacity:.4}.st-overflow-btn{align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);display:flex;height:36px;justify-content:center;margin-left:auto;transition:all var(--transition);width:36px}.st-overflow-btn:hover{background:rgba(0,0,0,.05);border-color:rgba(0,0,0,.2);color:var(--color-text-primary)}.st-overflow-dropdown{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);display:none;min-width:180px;padding:var(--space-1);position:absolute;right:var(--space-4);top:calc(100% - var(--space-1));z-index:100}.st-overflow-dropdown.open{display:block}.st-dropdown-item{align-items:center;border-radius:var(--radius-sm);color:var(--color-text-primary);display:flex;font-size:var(--font-size-sm);gap:var(--space-2);padding:var(--space-2) var(--space-3);transition:background var(--transition);width:100%}.st-dropdown-item:hover{background:var(--color-bg)}.st-panels{display:flex;flex:1;flex-direction:row;gap:var(--space-3);min-height:0;overflow:hidden}.st-source-panel,.st-target-panel{border:none;border-radius:8px;box-shadow:0 4px 20px 0 rgba(0,0,0,.035),0 0 0 .5px rgba(31,31,30,.12);display:flex;flex:1;flex-direction:column;min-width:0;overflow:hidden}.st-source-panel{background:var(--color-card)}.st-target-panel{background:var(--color-bg);border:.5px solid rgba(0,0,0,.06);box-shadow:none}.st-panel-divider{display:none}.st-panel-toolbar{align-items:center;background:var(--color-card);border-bottom:.5px solid rgba(0,0,0,.06);border-radius:8px 8px 0 0;box-shadow:0 1px 0 rgba(0,0,0,.04);display:flex;gap:var(--space-1);height:48px;min-height:48px;padding:var(--space-2) var(--space-4)}.st-toolbar-btn{align-items:center;background:transparent;border-radius:var(--radius-md);color:var(--color-text-secondary);display:flex;flex-shrink:0;height:34px;justify-content:center;transition:all var(--transition);width:34px}.st-toolbar-btn svg{height:18px;width:18px}.st-toolbar-btn:hover:not(:disabled){background:var(--color-card);box-shadow:0 1px 3px rgba(0,0,0,.06);color:var(--color-text-primary)}.st-toolbar-btn:active:not(:disabled){background:rgba(0,0,0,.08);color:var(--color-text-primary)}.st-toolbar-btn:disabled{opacity:.35}.st-toolbar-btn.active{background:rgba(0,0,0,.08);color:var(--color-text-primary)}.st-toolbar-divider{background:var(--color-border);flex-shrink:0;height:24px;margin:0 var(--space-1)}.st-edit-toggle{font-size:var(--font-size-xs);font-weight:500;gap:var(--space-1);padding:0 var(--space-2);width:auto}.st-edit-label{white-space:nowrap}@keyframes st-spin{to{transform:rotate(1turn)}}.st-spin{animation:st-spin .8s linear infinite}.st-download-wrap{display:flex;position:relative}.st-download-dropdown{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);display:none;left:50%;margin-top:4px;min-width:120px;padding:var(--space-1);position:absolute;top:100%;transform:translateX(-50%);z-index:100}.st-download-dropdown.open{display:block}.st-tone-segment{align-items:center;background:var(--color-bg);border:none;border-radius:8px;display:flex;flex-shrink:0;gap:2px;margin-left:auto;padding:3px}.st-tone-segment .st-tone-preset-btn{background:transparent;border:none;border-radius:var(--radius-sm);color:var(--color-text-secondary);flex-shrink:0;font-size:12px;font-weight:500;padding:4px 10px;transition:all var(--transition);white-space:nowrap}.st-tone-segment .st-tone-preset-btn:hover:not(.active){background:var(--color-bg);color:var(--color-text-primary)}.st-tone-segment .st-tone-preset-btn.active{background:var(--color-text-primary);box-shadow:0 2px 6px rgba(0,0,0,.15);color:#fff}.st-status-icon-btn.st-edit-toggle{font-size:var(--font-size-xs);font-weight:500;gap:var(--space-1);padding:0 var(--space-2);width:auto}.st-status-icon-btn.active,.st-toolbar-btn.active.st-drawer-trigger{background:rgba(0,0,0,.08);color:var(--color-text-primary)}.st-source-editor,.st-target-output{display:flex;flex:1;flex-direction:column;overflow:hidden}.st-source-editor .ql-container,.st-source-editor.ql-container,.st-target-output .ql-container,.st-target-output.ql-container{border:none!important;flex:1;font-family:var(--font-family);overflow-y:auto}.st-source-panel .ql-container.ql-snow,.st-target-panel .ql-container.ql-snow{border:none!important}.st-target-output .ql-editor{cursor:default!important}.st-source-panel .ql-toolbar,.st-target-panel .ql-toolbar{display:none!important}.st-source-editor .ql-editor,.st-target-output .ql-editor{word-wrap:break-word;color:var(--color-text-primary);font-size:16px;line-height:1.8;overflow-wrap:break-word;padding:var(--space-6);padding-bottom:120px}.st-source-editor .ql-editor.ql-blank:before,.st-target-output .ql-editor.ql-blank:before{color:var(--color-text-secondary);font-style:italic;left:var(--space-6);right:var(--space-6)}.st-target-output .ql-editor{user-select:text}.st-source-editor .ql-editor *,.st-target-output .ql-editor *{color:var(--color-text-primary)!important;font-family:var(--font-family)!important;font-size:16px!important;line-height:1.8;text-align:left!important}.st-source-editor .ql-editor blockquote,.st-target-output .ql-editor blockquote{border-left:3px solid!important}.st-source-editor .ql-editor :not(.st-align-active),.st-target-output .ql-editor :not(.st-align-active){background-color:transparent!important}.st-char-count{background:var(--color-bg);border:.5px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--font-size-xs);font-variant-numeric:tabular-nums;padding:4px 10px}.st-char-warning{color:var(--color-warning);font-weight:500}.st-char-error{color:var(--color-error);font-weight:600}.st-response-nav{font-size:var(--font-size-xs);font-variant-numeric:tabular-nums;gap:var(--space-2)}.st-nav-btn,.st-response-nav{align-items:center;color:var(--color-text-secondary);display:flex}.st-nav-btn{border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:600;height:24px;justify-content:center;transition:background var(--transition),color var(--transition);width:24px}.st-nav-btn:hover:not(:disabled){background:var(--color-bg);color:var(--color-text-primary)}.st-nav-btn:disabled{opacity:.4}.st-drawer-view{display:flex;flex:1;flex-direction:column;min-height:0}.st-history-list{flex:1;gap:var(--space-2);overflow-y:auto}.st-history-card,.st-history-list{display:flex;flex-direction:column;padding:var(--space-3)}.st-history-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;gap:var(--space-1);text-align:left;transition:border-color var(--transition),background var(--transition);width:100%}.st-history-card:hover{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.15)}.st-history-arrow{color:var(--color-text-secondary);font-size:var(--font-size-xs);line-height:1}.st-history-source,.st-history-target{font-size:var(--font-size-sm);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.st-history-source{color:var(--color-text-secondary)}.st-history-target{color:var(--color-text-primary);font-weight:500}.st-history-meta{align-items:center;color:var(--color-text-secondary);display:flex;font-size:var(--font-size-xs);gap:var(--space-2);margin-top:var(--space-1)}.st-history-tone{background:rgba(0,0,0,.06);border-radius:var(--radius-full);color:var(--color-text-primary);font-size:10px;font-weight:600;padding:1px 6px}.st-history-time{margin-left:auto}.st-history-empty{align-items:center;color:var(--color-text-secondary);display:flex;flex:1;flex-direction:column;gap:var(--space-3);justify-content:center;padding:var(--space-6)}.st-history-empty p{font-size:var(--font-size-sm)}.st-history-footer{border-top:1px solid var(--color-border);padding:var(--space-3);text-align:center}.st-history-clear-btn{border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:var(--font-size-xs);padding:var(--space-2) var(--space-4);transition:color var(--transition),background var(--transition)}.st-history-clear-btn:hover{background:rgba(239,68,68,.08);color:var(--color-error)}.dark .st-history-card,[data-theme=dark] .st-history-card{background:var(--st-hover-dark);border-color:var(--color-border)}.st-toolbar-btn.active.st-stt-active{background:rgba(0,0,0,.08);color:var(--color-text-primary)}:root{--chat-ai-bg:rgba(0,0,0,.03);--chat-ai-text:var(--color-text-primary);--chat-user-bg:var(--color-primary-hover,#5a5de0);--chat-user-text:#fff;--chat-input-bg:var(--color-card);--chat-input-border:var(--color-border);--chat-mic-active:var(--color-error,#ef4444)}[data-theme=dark]{--chat-ai-bg:hsla(0,0%,100%,.04);--chat-ai-text:var(--color-text-primary);--chat-user-bg:var(--color-primary);--chat-user-text:#fff;--chat-input-bg:var(--color-bg);--chat-input-border:hsla(0,0%,100%,.08)}.st-drawer-backdrop{background:var(--st-overlay-light);inset:0;opacity:0;position:fixed;transition:opacity var(--transition),visibility var(--transition);visibility:hidden;z-index:40}.st-drawer-backdrop.open{opacity:1;visibility:visible}.st-drawer{background:var(--color-card);border-left:.5px solid var(--color-border);border-radius:0;bottom:0;box-shadow:-4px 0 12px rgba(0,0,0,.1);display:flex;flex-direction:column;overflow:hidden;position:fixed;right:0;top:0;transform:translateX(100%);width:360px;z-index:50}.st-drawer.open{transform:translateX(0)}.st-drawer-header{align-items:center;background:var(--color-card);border-bottom:.5px solid var(--color-border);display:flex;height:56px;justify-content:space-between;min-height:56px;padding:0 var(--space-5)}.st-drawer-title{color:var(--color-text-primary);font-size:var(--font-size-base);font-weight:700}.st-drawer-tabs{align-items:center;display:flex;gap:var(--space-1)}.st-drawer-tab{border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:500;padding:var(--space-2) var(--space-3);transition:background var(--transition),color var(--transition)}.st-drawer-tab:hover{background:var(--color-bg);color:var(--color-text-primary)}.st-drawer-tab.active{background:rgba(0,0,0,.08);color:var(--color-text-primary)}.st-drawer-header-actions{align-items:center;display:flex;gap:2px}.st-chat-new-conversation{align-items:center;background:transparent;border:none;border-radius:6px;color:var(--color-text-tertiary);cursor:pointer;display:none;height:28px;justify-content:center;padding:0;transition:all .18s ease;width:28px}.st-chat-new-conversation svg{padding-left:1px}.st-chat-new-conversation:hover{background:rgba(0,0,0,.04);color:var(--color-text-secondary)}.st-drawer-close{align-items:center;border-radius:var(--radius-md);color:var(--color-text-secondary);display:flex;height:36px;justify-content:center;transition:background var(--transition),color var(--transition);width:36px}.st-drawer-close:hover{background:var(--color-bg);color:var(--color-text-primary)}.st-drawer-content{display:flex;flex:1;flex-direction:column;min-height:0;overflow:hidden}.st-drawer-panel{padding:var(--space-4)}[data-theme=dark]{.st-source-panel{background:var(--color-card);box-shadow:0 1px 3px rgba(0,0,0,.15)}.st-target-panel{background:var(--color-bg);border-color:hsla(0,0%,100%,.08);box-shadow:none}.st-toolbar-btn:hover:not(:disabled){background:var(--st-hover-dark)}.st-toolbar-btn:active:not(:disabled){background:var(--st-hover-dark-active)}.st-lang-selector.open,.st-lang-selector:hover,.st-overflow-btn:hover,.st-swap-btn:hover:not(:disabled),.st-tone-segment{background:var(--st-hover-dark)}.st-tone-segment .st-tone-preset-btn.active{background:var(--color-text-primary);box-shadow:0 2px 6px rgba(0,0,0,.15);color:#fff}.st-drawer-close:hover,.st-drawer-tab:hover,.st-dropdown-item:hover,.st-lang-option:hover,.st-nav-btn:hover:not(:disabled),.st-status-icon-btn:hover{background:var(--st-hover-dark)}.st-drawer-backdrop{background:var(--st-overlay-dark)}}.st-chat-messages{background:#f8f8f6;display:flex;flex:1;flex-direction:column;gap:12px;overflow-y:auto;padding:16px;scrollbar-color:rgba(0,0,0,.04) transparent;scrollbar-width:thin}.st-chat-welcome{animation:st-fadeInUp .3s ease;display:flex;flex:1;flex-direction:column;gap:16px;justify-content:center;padding:20px}.st-welcome-header{padding:12px 0 4px;text-align:center}.st-welcome-title{color:var(--color-text-primary);font-size:15px;font-weight:600;margin:0 0 4px}.st-welcome-desc{color:var(--color-text-tertiary);font-size:12.5px;font-weight:400;margin:0}.st-chat-shortcuts{display:flex;flex-direction:column;gap:6px;width:100%}.st-shortcut-card{align-items:center;background:#fff;border:.5px solid rgba(0,0,0,.06);border-radius:10px;cursor:pointer;display:flex;gap:10px;min-width:0;padding:12px 14px;text-align:left;transition:all .18s ease}.st-shortcut-card:hover{background:rgba(0,0,0,.02);border-color:rgba(0,0,0,.1)}.st-shortcut-icon{align-items:center;color:var(--color-text-tertiary);display:flex;flex-shrink:0;height:24px;justify-content:center;width:24px}.st-shortcut-card:hover .st-shortcut-icon svg{color:var(--color-text-secondary)}.st-shortcut-label{color:var(--color-text-primary);flex:1;font-size:13px;font-weight:500;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.st-shortcut-send{align-items:center;border-radius:6px;color:rgba(0,0,0,.15);display:flex;flex-shrink:0;height:28px;justify-content:center;transition:all .18s ease;width:28px}.st-shortcut-card:hover .st-shortcut-send svg{color:var(--color-text-tertiary)}.message-bubble{word-wrap:break-word;animation:st-fadeInUp .25s ease;border-radius:16px;font-size:14px;line-height:1.6;max-width:88%;min-width:140px;padding:12px 16px}.message-bubble.user{align-self:flex-end;background:var(--color-primary,#696cff);border-bottom-right-radius:4px;color:#fff}.message-bubble.ai{align-self:flex-start;background:var(--color-card,#fff);border:.5px solid rgba(0,0,0,.06);border-bottom-left-radius:4px;box-shadow:0 1px 2px rgba(0,0,0,.04);color:var(--color-text-primary)}.message-bubble.ai p{margin:0}.message-bubble.ai p+p{margin-top:6px}.message-bubble.ai p:empty{display:none}.message-bubble.ai ul{list-style-type:disc;margin:4px 0;padding-left:18px}.message-bubble.ai ol{list-style-type:decimal;margin:4px 0;padding-left:18px}.message-bubble.ai li{margin-bottom:2px}.message-bubble.ai strong{font-weight:600}.message-bubble.ai em{color:var(--color-text-secondary)}@keyframes 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