:root{--primary-color:#4f46e5;--primary-hover:#4338ca;--primary-glow:rgba(99,102,241,.25);--accent-color:#7c3aed;--success-color:#10b981;--warning-color:#f59e0b;--danger-color:#ef4444;--bg-color:#f8fafc;--card-bg:#fff;--card-bg-glass:rgba(255,255,255,.85);--card-border:rgba(99,102,241,.12);--input-bg:#fff;--input-border:#cbd5e1;--text-color:#0f172a;--text-muted:#64748b;--text-light:#94a3b8;--text-link:#2563eb;--sentence-active-bg:rgba(79,70,229,.08);--sentence-active-border:rgba(79,70,229,.3);--word-active-bg:#4f46e5;--word-active-text:#fff;--word-active-shadow:0 2px 10px rgba(79,70,229,.4);--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--max-width:1300px;--transition:all .25s cubic-bezier(.4, 0, .2, 1);--radius-sm:6px;--radius-md:10px;--radius-lg:16px}[data-theme=dark]{--bg-color:#0f172a;--card-bg:#1e293b;--card-bg-glass:rgba(30,41,59,.85);--card-border:rgba(255,255,255,.1);--input-bg:#1e293b;--input-border:#334155;--text-color:#f8fafc;--text-muted:#94a3b8;--text-light:#64748b;--text-link:#60a5fa;--sentence-active-bg:rgba(99,102,241,.2);--sentence-active-border:rgba(99,102,241,.4);--word-active-bg:#6366f1;--word-active-text:#fff;--word-active-shadow:0 0 15px rgba(99,102,241,.6)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-sans);flex-direction:column;min-height:100vh;line-height:1.6;transition:background-color .3s,color .3s;display:flex;position:relative;overflow-x:hidden}body:before{content:"";z-index:-1;pointer-events:none;background:radial-gradient(450px at 50% 100px,rgba(99,102,241,.08),transparent 80%),radial-gradient(350px at 20% 300px,rgba(168,85,247,.06),transparent 80%);width:100%;max-width:1400px;height:600px;position:absolute;top:0;left:50%;transform:translate(-50%)}.lang-nav-container{max-width:var(--max-width);background:var(--card-bg-glass);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--card-border);z-index:100;width:100%;transition:var(--transition);margin:0 auto;position:relative}.lang-nav{max-width:var(--max-width);white-space:nowrap;align-items:center;gap:10px;max-height:42px;margin:0 auto;padding:10px 16px;transition:max-height .3s cubic-bezier(.4,0,.2,1);display:flex;overflow:hidden}.lang-nav-container:hover .lang-nav{white-space:normal;flex-wrap:wrap;max-height:500px;overflow-y:auto}.lang-nav a,.footer-lang-nav a{color:var(--text-muted);transition:var(--transition);border-radius:4px;padding:3px 8px;font-size:13px;font-weight:500;text-decoration:none;display:inline-block}.lang-nav a:hover,.footer-lang-nav a:hover{color:var(--primary-color);background:rgba(99,102,241,.08);text-decoration:none}.footer-lang-nav a{border:1px solid var(--card-border);background:rgba(99,102,241,.05);border-radius:6px;padding:4px 10px;font-size:12px}.app-container{max-width:var(--max-width);flex-direction:column;flex:1;width:100%;margin:0 auto;padding:20px;display:flex}.app-body{width:100%}.brand-section{justify-content:space-between;align-items:center;gap:30px;width:100%;margin-bottom:16px;display:flex}.brand-info{flex-direction:column;flex:1;align-items:flex-start;min-width:0;display:flex}.header-top-row{justify-content:space-between;align-items:center;width:100%;margin-bottom:6px;display:flex}.toolbox-badge-wrapper{align-items:center;display:flex}.toolbox-badge{border:1px solid var(--card-border);color:var(--primary-color);transition:var(--transition);background:linear-gradient(135deg,rgba(99,102,241,.1),rgba(168,85,247,.1));border-radius:30px;align-items:center;gap:6px;padding:4px 12px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.toolbox-badge:hover{box-shadow:0 4px 12px var(--primary-glow);transform:translateY(-1px)}.toolbox-badge svg{fill:currentColor;width:14px;height:14px}.theme-toggle-btn{background:var(--card-bg);border:1px solid var(--card-border);color:var(--text-color);cursor:pointer;width:34px;height:34px;transition:var(--transition);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;border-radius:50%;justify-content:center;align-items:center;font-size:16px;display:flex}.theme-toggle-btn:hover{border-color:var(--primary-color);box-shadow:0 2px 10px var(--primary-glow);transform:scale(1.08)}.app-header{text-align:left}.app-title{background:linear-gradient(to right, var(--text-color), var(--primary-color), var(--accent-color));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:4px;font-size:1.8rem;font-weight:700;line-height:1.25}.app-description{color:var(--text-muted);font-size:.95rem}.header-ad{border-radius:var(--radius-md);border:1px solid var(--card-border);background:rgba(0,0,0,.02);flex-shrink:0;justify-content:center;align-items:center;width:728px;height:90px;display:flex;overflow:hidden}.settings-bar{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:16px;padding:16px;display:flex;box-shadow:0 4px 20px rgba(0,0,0,.03)}.setting-item{align-items:center;gap:8px;display:flex}.setting-item label{color:var(--text-muted);white-space:nowrap;font-size:13px;font-weight:600}.setting-item .el-select,.setting-item .el-slider{min-width:140px}.more-settings-btn{color:var(--primary-color);cursor:pointer;border-radius:var(--radius-sm);transition:var(--transition);background:rgba(99,102,241,.08);align-items:center;gap:4px;margin-left:auto;padding:6px 12px;font-size:13px;display:inline-flex}.more-settings-btn:hover{background:rgba(99,102,241,.18)}.input-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);margin-bottom:20px;padding:20px;box-shadow:0 8px 30px rgba(0,0,0,.04)}.input-top-tools{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.input-label{color:var(--text-color);font-size:14px;font-weight:600}.example-btn{border:1px solid var(--primary-color);color:var(--primary-color);cursor:pointer;transition:var(--transition);background:0 0;border-radius:16px;padding:4px 12px;font-size:12px;font-weight:500}@keyframes exampleShake{0%,to{transform:translate(0)}15%{transform:translate(-4px)rotate(-3deg)}30%{transform:translate(4px)rotate(3deg)}45%{transform:translate(-3px)rotate(-2deg)}60%{transform:translate(3px)rotate(2deg)}75%{transform:translate(-1px)rotate(-1deg)}}.example-btn.shake{border-color:var(--primary-color);box-shadow:0 2px 12px var(--primary-glow);animation:.7s ease-in-out 3 exampleShake}.example-btn:hover{background:var(--primary-color);color:#fff}.text-input-area{border-radius:var(--radius-md);border:1px solid var(--input-border);background-color:var(--input-bg);width:100%;min-height:180px;color:var(--text-color);resize:vertical;outline:none;padding:14px;font-family:inherit;font-size:15px;line-height:1.7;transition:border-color .2s,box-shadow .2s}.text-input-area:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-glow)}.input-stats-bar{color:var(--text-light);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;justify-content:flex-end;gap:12px;margin-top:3px;margin-bottom:4px;font-size:11px;display:flex}.action-controls-bar{border-top:1px dashed var(--card-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding-top:6px;display:flex}.controls-left,.controls-right{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.custom-btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;border:1px solid transparent;outline:none;justify-content:center;align-items:center;gap:6px;padding:9px 18px;font-size:14px;font-weight:600;display:inline-flex}.custom-btn-primary{background:linear-gradient(135deg, var(--primary-color), var(--accent-color));color:#fff;box-shadow:0 4px 15px var(--primary-glow)}.custom-btn-primary:hover{opacity:.92;box-shadow:0 6px 20px var(--primary-glow);transform:translateY(-1px)}.custom-btn-secondary{background:var(--bg-color);border-color:var(--card-border);color:var(--text-color)}.custom-btn-secondary:hover{border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-1px)}.custom-btn-warning{background:var(--warning-color);color:#fff}.custom-btn-warning:hover{opacity:.9;transform:translateY(-1px)}.custom-btn-danger{background:var(--danger-color);color:#fff}.custom-btn-danger:hover{opacity:.9;transform:translateY(-1px)}.custom-btn-sm{padding:6px 12px;font-size:13px}.checkbox-label{color:var(--text-color);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;align-items:center;gap:6px;font-size:13px;display:flex}.checkbox-label input[type=checkbox]{accent-color:var(--primary-color);cursor:pointer;width:15px;height:15px}.format-dropdown{display:inline-block;position:relative}.display-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);margin-bottom:24px;padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.05)}.display-header{border-bottom:1px solid var(--card-border);justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:10px;display:flex}.font-size-controls{background:var(--bg-color);border:1px solid var(--card-border);border-radius:8px;align-items:center;gap:2px;padding:3px;display:inline-flex;box-shadow:inset 0 1px 2px rgba(0,0,0,.03)}.btn-font-size{color:var(--text-muted);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;height:26px;padding:0 10px;font-size:13px;font-weight:700;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.btn-font-size:hover:not(:disabled){background:var(--card-bg);color:var(--primary-color);box-shadow:0 2px 6px rgba(0,0,0,.08)}.btn-font-size:active:not(:disabled){transform:scale(.94)}.btn-font-size:disabled{opacity:.35;cursor:not-allowed}.display-title{color:var(--text-color);align-items:center;gap:8px;font-size:15px;font-weight:700;display:flex}.status-badge{border-radius:12px;align-items:center;gap:6px;padding:2px 10px;font-size:12px;font-weight:500;display:inline-flex}.status-badge.reading{color:var(--success-color);background:rgba(16,185,129,.12)}.status-badge.paused{color:var(--warning-color);background:rgba(245,158,11,.12)}.status-badge.stopped{color:var(--text-muted);background:rgba(100,116,139,.12)}.sentences-container{word-wrap:break-word;color:var(--text-muted);white-space:pre-wrap;font-size:17px;line-height:1.85}.sentence-item{border-radius:4px;padding:2px 3px;transition:background-color .2s,border-color .2s;display:inline}.sentence-item.active{background-color:var(--sentence-active-bg);color:var(--text-color)}.word-item{cursor:pointer;border-radius:3px;margin:0;padding:0;transition:background-color .15s,color .15s,box-shadow .15s;display:inline}.word-item:hover{color:var(--primary-color);background:rgba(99,102,241,.15)}.word-item.active{box-shadow:var(--word-active-shadow);border-radius:3px;margin:0 -1px;padding:1px 3px;background-color:var(--word-active-bg)!important;color:var(--word-active-text)!important}.display-card{position:relative}.word-popover{z-index:1000;background:var(--card-bg);border:1px solid var(--card-border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:8px;flex-direction:column;gap:5px;margin-top:-8px;padding:6px;display:flex;position:absolute;transform:translate(-50%,-100%);box-shadow:0 10px 25px -5px rgba(0,0,0,.15),0 8px 10px -6px rgba(0,0,0,.1)}.word-popover:after{content:"";border-style:solid;border-width:6px 6px 0;border-color:var(--card-bg) transparent transparent;position:absolute;bottom:-6px;left:50%;transform:translate(-50%)}.popover-btn{color:var(--text-color);cursor:pointer;white-space:nowrap;text-align:left;background:rgba(99,102,241,.08);border:none;border-radius:6px;width:100%;padding:6px 12px;font-size:12px;font-weight:500;transition:all .15s}.popover-btn:hover{color:var(--primary-color);background:rgba(99,102,241,.18)}.popover-btn.primary{background:var(--primary-color);color:#fff}.popover-btn.primary:hover{background:var(--primary-hover)}.app-footer{max-width:var(--max-width);border-top:1px solid var(--card-border);background:var(--card-bg-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);width:100%;margin:auto auto 0}.footer-content{max-width:var(--max-width);text-align:center;flex-direction:column;align-items:center;gap:16px;margin:0 auto;padding:20px;display:flex}.footer-lang-nav{flex-wrap:wrap;justify-content:center;gap:8px 12px;width:100%;display:flex}.footer-links{align-items:center;gap:24px;display:flex}.footer-link{color:var(--primary-color);border:1px solid var(--card-border);transition:var(--transition);background:rgba(99,102,241,.04);border-radius:20px;padding:6px 14px;font-size:13px;font-weight:500;text-decoration:none}.footer-link:hover{border-color:var(--primary-color);color:var(--accent-color);background:rgba(99,102,241,.1)}[data-theme=dark] .el-dialog{background:#1e293b;border:1px solid #334155}[data-theme=dark] .el-dialog__title,[data-theme=dark] .el-form-item__label{color:#f8fafc}[data-theme=dark] .el-select-dropdown{background-color:#1e293b;border-color:#334155}[data-theme=dark] .el-select-dropdown__item{color:#cbd5e1}[data-theme=dark] .el-select-dropdown__item.hover,[data-theme=dark] .el-select-dropdown__item:hover{background-color:#334155}@media (max-width:1024px){.brand-section{flex-direction:column;align-items:flex-start;gap:16px}.header-ad{display:none}}@media (max-width:768px){.app-container{padding:12px}.settings-bar{flex-direction:column;align-items:stretch}.setting-item{justify-content:space-between}.setting-item .el-select,.setting-item .el-slider{min-width:160px}.action-controls-bar{flex-direction:column;align-items:stretch}.controls-left,.controls-right{justify-content:space-between;width:100%}.custom-btn{flex:1}.sentences-container{font-size:15px}}.el-dialog{overflow:hidden;box-shadow:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);border-radius:12px!important;width:1000px!important;max-width:94vw!important}.el-dialog__header{padding:20px 24px 12px!important}.el-dialog__title{color:var(--text-color)!important;font-size:18px!important;font-weight:600!important}.el-dialog__body{padding:20px 24px 16px!important}.dialog-body-actions{text-align:right;border-top:1px solid var(--border-color,#e5e7eb);margin-top:20px;padding-top:14px}.el-dialog__footer{border-top:1px dashed var(--border-color,#e5e7eb);background:var(--bg-color,#fafafa);padding:12px 24px 18px!important}.dialog-footer-ad{justify-content:center;align-items:center;width:100%;min-height:90px;display:flex;overflow:hidden}@media (max-width:768px){.el-dialog{width:94%!important;margin-top:4vh!important}.el-dialog__body{padding:16px 14px!important}.el-dialog__footer{padding:10px 14px 14px!important}.el-dialog .el-form-item__label{float:none!important;text-align:left!important;padding:0 0 6px!important;display:block!important}.el-dialog .el-form-item__content{margin-left:0!important}}