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p{font-size:16px!important;color:#6c757d!important;margin-bottom:24px!important}._formatTags_5tei5_103{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}._formatTag_5tei5_103{font-size:14px!important;padding:4px 12px!important;border-radius:16px!important;font-weight:500}._usageCard_5tei5_118{border-radius:12px;box-shadow:0 2px 8px #0000001a;padding:20px}._usageCard_5tei5_118 h4{color:#2c3e50!important;margin-bottom:8px!important}._usageCard_5tei5_118 p{color:#6c757d!important;margin-bottom:0!important;line-height:1.6}._techCard_5tei5_136{height:100%;border-radius:12px;box-shadow:0 2px 8px #0000001a}._techList_5tei5_142{margin:0;padding:0;list-style:none}._techList_5tei5_142 li{color:#6c757d;border-bottom:1px solid #f1f3f4;position:relative;padding:8px 0 8px 20px}._techList_5tei5_142 li:last-child{border-bottom:none}._techList_5tei5_142 li:before{content:"•";color:#667eea;font-weight:700;position:absolute;left:0}@media (max-width: 768px){._aboutPage_5tei5_3{padding:16px 0}._container_5tei5_9{padding:0 16px}._header_5tei5_16{padding:32px 20px;margin-bottom:32px}._pageTitle_5tei5_25{font-size:2rem!important;margin-bottom:16px!important}._pageDescription_5tei5_31{font-size:15px!important;line-height:1.6}._sectionTitle_5tei5_44{font-size:1.6rem!important;margin-bottom:24px!important}._section_5tei5_40{margin-bottom:32px}._featureCard_5tei5_52{margin-bottom:16px}._featureContent_5tei5_65{padding:20px 16px}._featureIcon_5tei5_69{font-size:2.5rem;margin-bottom:16px}._formatsContent_5tei5_92{padding:16px}._formatTags_5tei5_103{justify-content:center;gap:6px}._usageCard_5tei5_118{padding:16px;margin-bottom:16px}._techCard_5tei5_136{margin-bottom:16px}}@media (max-width: 480px){._aboutPage_5tei5_3{padding:12px 0}._container_5tei5_9{padding:0 12px}._header_5tei5_16{padding:24px 16px;margin-bottom:24px}._pageTitle_5tei5_25{font-size:1.6rem!important;margin-bottom:12px!important}._pageDescription_5tei5_31{font-size:14px!important}._sectionTitle_5tei5_44{font-size:1.4rem!important;margin-bottom:20px!important}._section_5tei5_40{margin-bottom:24px}._featureContent_5tei5_65{padding:16px 12px}._featureIcon_5tei5_69{font-size:2rem;margin-bottom:12px}._featureTitle_5tei5_75{font-size:1.1rem!important;margin-bottom:12px!important}._featureDescription_5tei5_80{font-size:13px!important}._formatsContent_5tei5_92{padding:12px}._formatsContent_5tei5_92 p{font-size:14px!important;margin-bottom:16px!important}._formatTags_5tei5_103{gap:4px}._formatTag_5tei5_103{font-size:11px!important;padding:2px 6px!important}._usageCard_5tei5_118{padding:12px}._usageCard_5tei5_118 h4{font-size:1rem!important}._usageCard_5tei5_118 p{font-size:13px!important}._techList_5tei5_142 li{font-size:13px;padding:6px 0 6px 16px}}._notFoundPage_p3psl_3{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:40px 20px}._errorCode_p3psl_13{font-size:120px;font-weight:700;color:#1890ff;margin:0;line-height:1}._errorTitle_p3psl_21{font-size:24px;margin:20px 0 10px;color:#262626}._errorDescription_p3psl_27{font-size:16px;color:#8c8c8c;margin-bottom:30px;max-width:400px}._backButton_p3psl_34{font-size:16px;height:40px;padding:0 24px}@media (max-width: 768px){._errorCode_p3psl_13{font-size:80px}._errorTitle_p3psl_21{font-size:20px}._errorDescription_p3psl_27{font-size:14px}._notFoundPage_p3psl_3{padding:20px 16px}}.app-layout{min-height:100vh;background-color:#f5f5f5}.app-content{flex:1;padding:0;background-color:#f5f5f5}.page-container{max-width:1200px;margin:0 auto;padding:24px;min-height:calc(100vh - 140px)}.page-header{background:#fff;padding:24px;margin-bottom:24px;border-radius:8px;box-shadow:0 2px 8px #0000000f}.page-content{background:#fff;padding:24px;border-radius:8px;box-shadow:0 2px 8px #0000000f}.feature-card{text-align:center;padding:24px;border-radius:8px;transition:all .3s ease;cursor:pointer}.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.feature-icon{font-size:48px;margin-bottom:16px;color:#1890ff}.upload-area{border:2px dashed #d9d9d9;border-radius:8px;padding:40px;text-align:center;background-color:#fafafa;transition:all .3s ease;cursor:pointer}.upload-area:hover{border-color:#1890ff;background-color:#f0f8ff}.upload-area.dragover{border-color:#1890ff;background-color:#e6f7ff}.upload-icon{font-size:64px;color:#d9d9d9;margin-bottom:16px}.upload-text{font-size:16px;color:#666;margin-bottom:8px}.upload-hint{font-size:14px;color:#999}.file-list{margin-top:24px}.file-item{display:flex;align-items:center;padding:12px 16px;border:1px solid #f0f0f0;border-radius:6px;margin-bottom:8px;background:#fff;transition:all .3s ease}.file-item:hover{border-color:#1890ff;box-shadow:0 2px 8px #1890ff1a}.file-icon{font-size:24px;margin-right:12px;color:#1890ff}.file-info{flex:1}.file-name{font-weight:500;margin-bottom:4px}.file-meta{font-size:12px;color:#999}.file-actions{display:flex;gap:8px}.convert-options{background:#f8f9fa;padding:16px;border-radius:6px;margin:16px 0}.format-selector{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.format-tag{padding:4px 12px;border:1px solid #d9d9d9;border-radius:16px;background:#fff;cursor:pointer;transition:all .3s ease;font-size:12px}.format-tag:hover{border-color:#1890ff;color:#1890ff}.format-tag.selected{background:#1890ff;border-color:#1890ff;color:#fff}.progress-container{margin:16px 0}.progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.progress-text{font-size:14px;color:#666}.progress-percent{font-size:14px;font-weight:500;color:#1890ff}.result-container{margin-top:24px;padding:16px;background:#f6ffed;border:1px solid #b7eb8f;border-radius:6px}.result-success{background:#f6ffed;border-color:#b7eb8f}.result-error{background:#fff2f0;border-color:#ffccc7}.result-header{display:flex;align-items:center;margin-bottom:12px}.result-icon{font-size:20px;margin-right:8px}.result-title{font-weight:500;font-size:16px}.result-content{margin-left:28px}@media (max-width: 768px){.page-container{padding:16px;min-height:calc(100vh - 120px)}.page-header,.page-content{padding:16px;margin-bottom:16px}.feature-card{padding:16px}.feature-icon{font-size:36px;margin-bottom:12px}.upload-area{padding:24px 16px}.upload-icon{font-size:48px}.upload-text{font-size:15px}.upload-hint{font-size:13px}.file-item{flex-direction:column;align-items:flex-start;padding:10px 12px}.file-info{width:100%;margin-bottom:8px}.file-name{font-size:14px;word-break:break-all}.file-meta{font-size:11px}.file-actions{margin-top:8px;width:100%;justify-content:flex-end}.convert-options{padding:12px;margin:12px 0}.format-selector{gap:6px;margin-top:8px}.format-tag{font-size:11px;padding:3px 8px}.result-container{padding:12px;margin-top:16px}.result-title{font-size:15px}}@media (max-width: 480px){.page-container,.page-header,.page-content,.feature-card{padding:12px}.feature-icon{font-size:32px;margin-bottom:8px}.upload-area{padding:20px 12px}.upload-icon{font-size:40px}.upload-text{font-size:14px}.upload-hint{font-size:12px}.file-item{padding:8px 10px}.file-name{font-size:13px}.file-meta{font-size:10px}.convert-options{padding:10px}.format-tag{font-size:10px;padding:2px 6px}.result-container{padding:10px}.result-title{font-size:14px}.result-icon{font-size:18px}}:root{--color-primary: #1890ff;--color-primary-hover: #40a9ff;--color-primary-active: #096dd9;--color-primary-light: rgba(24, 144, 255, .1);--color-success: #52c41a;--color-warning: #faad14;--color-error: #ff4d4f;--color-info: #1890ff;--color-text-primary: #262626;--color-text-secondary: #666666;--color-text-tertiary: #8c8c8c;--color-text-disabled: #bfbfbf;--color-bg-primary: #ffffff;--color-bg-secondary: #fafafa;--color-bg-tertiary: #f5f5f5;--color-bg-disabled: #f5f5f5;--color-border-primary: #d9d9d9;--color-border-secondary: #f0f0f0;--color-border-light: #f5f5f5;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .06);--shadow-md: 0 2px 8px rgba(0, 0, 0, .06);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .08);--shadow-xl: 0 8px 24px rgba(0, 0, 0, .12);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-2xl: 24px;--spacing-3xl: 32px;--spacing-4xl: 40px;--spacing-5xl: 48px;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-md: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 28px;--font-size-4xl: 32px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-normal: 1.4;--line-height-relaxed: 1.6;--line-height-loose: 1.8;--border-radius-sm: 4px;--border-radius-md: 6px;--border-radius-lg: 8px;--border-radius-xl: 12px;--border-radius-2xl: 16px;--page-max-width-sm: 768px;--page-max-width-md: 980px;--page-max-width-lg: 1200px;--page-max-width-xl: 1400px;--page-padding: var(--spacing-2xl);--section-spacing: var(--spacing-3xl);--breakpoint-sm: 576px;--breakpoint-md: 768px;--breakpoint-lg: 992px;--breakpoint-xl: 1200px;--breakpoint-2xl: 1400px;--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out;--transition-slow: .5s ease-in-out;--z-index-dropdown: 1000;--z-index-modal: 1050;--z-index-popover: 1060;--z-index-tooltip: 1070;--button-height-sm: 32px;--button-height-base: 36px;--button-height-lg: 40px;--button-height-xl: 48px;--button-padding-sm: 8px 16px;--button-padding-base: 10px 20px;--button-padding-lg: 12px 24px;--button-padding-xl: 16px 32px;--button-gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);--button-gradient-primary-hover: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);--button-shadow-primary: 0 2px 8px rgba(24, 144, 255, .3);--button-shadow-primary-hover: 0 4px 12px rgba(24, 144, 255, .4)}.page-container{max-width:var(--page-max-width-md);margin:0 auto;padding:var(--page-padding);min-height:calc(100vh - 64px)}.page-container--wide{max-width:var(--page-max-width-xl)}.page-container--narrow{max-width:var(--page-max-width-sm)}.page-header{text-align:left;margin-bottom:var(--section-spacing)}.page-title{display:flex;align-items:center;justify-content:flex-start;gap:var(--spacing-md);margin-bottom:var(--spacing-sm)!important;color:var(--color-text-primary)!important;font-size:var(--font-size-3xl);font-weight:var(--font-weight-semibold)}.page-title__icon{font-size:var(--font-size-3xl);filter:drop-shadow(0 2px 4px rgba(24,144,255,.3))}.page-description{font-size:var(--font-size-md);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);margin:0}.page-section{margin-bottom:var(--spacing-2xl)}.page-section--large{margin-bottom:var(--section-spacing)}.section-title{color:var(--color-primary);margin-bottom:var(--spacing-lg)!important;font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg)}.upload-section{margin-bottom:var(--section-spacing)}.settings-section{background:var(--color-bg-secondary);border-radius:var(--border-radius-lg);padding:var(--spacing-2xl);margin-bottom:var(--spacing-2xl)}.result-section{min-height:400px;margin-bottom:var(--spacing-2xl)}.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.button-container{display:flex;gap:var(--spacing-md);justify-content:flex-start;margin-top:var(--spacing-xl)}.button-container--center{justify-content:center}.button-container--end{justify-content:flex-end}.button-center{display:flex;justify-content:center;margin-top:var(--spacing-lg)}.back-button-container{display:flex;justify-content:center;margin-top:var(--spacing-3xl)}.steps-container{margin-bottom:var(--spacing-3xl)}.content-grid{display:grid;gap:var(--spacing-2xl);align-items:start}.content-grid--two-columns{grid-template-columns:1fr 1fr}.content-grid--three-columns{grid-template-columns:repeat(3,1fr)}.card{background:var(--color-bg-primary);border-radius:var(--border-radius-lg);padding:var(--spacing-2xl);box-shadow:var(--shadow-md);border:1px solid var(--color-border-secondary)}.card--no-padding{padding:0}.card--small-padding{padding:var(--spacing-lg)}@media (max-width: 768px){.page-container{padding:var(--spacing-lg)}.page-header{margin-bottom:var(--spacing-2xl)}.page-title{font-size:var(--font-size-xl);gap:var(--spacing-sm)}.page-title__icon{font-size:var(--font-size-xl)}.page-description{font-size:var(--font-size-sm)}.content-grid--two-columns,.content-grid--three-columns{grid-template-columns:1fr}.settings-section{padding:var(--spacing-lg)}.button-container{flex-direction:column}}@media (max-width: 480px){.page-container{padding:var(--spacing-md)}.page-title,.page-title__icon{font-size:var(--font-size-lg)}}.btn-primary-gradient{background:var(--button-gradient-primary)!important;border:none!important;box-shadow:var(--button-shadow-primary)!important;height:var(--button-height-lg)!important;font-size:var(--font-size-md)!important;font-weight:var(--font-weight-medium)!important;transition:var(--transition-normal)!important;border-radius:var(--border-radius-md)!important}.btn-primary-gradient:hover{background:var(--button-gradient-primary-hover)!important;box-shadow:var(--button-shadow-primary-hover)!important;transform:translateY(-1px)!important;border:none!important}.btn-primary-gradient:focus{background:var(--button-gradient-primary)!important;box-shadow:var(--button-shadow-primary)!important;border:none!important}.btn-primary-gradient:disabled{background:#e6f7ff!important;color:#8cc8ff!important;border:1px solid #b3d8ff!important;box-shadow:none!important;transform:none!important;cursor:not-allowed!important}.btn-back-gradient{background:var(--button-gradient-primary)!important;border:none!important;box-shadow:var(--button-shadow-primary)!important;height:var(--button-height-base)!important;font-size:var(--font-size-sm)!important;font-weight:var(--font-weight-medium)!important;transition:var(--transition-normal)!important;border-radius:var(--border-radius-md)!important}.btn-back-gradient:hover{background:var(--button-gradient-primary-hover)!important;box-shadow:var(--button-shadow-primary-hover)!important;transform:translateY(-1px)!important;border:none!important}.btn-back-gradient:focus{background:var(--button-gradient-primary)!important;box-shadow:var(--button-shadow-primary)!important;border:none!important}@media (max-width: 768px){.btn-primary-gradient{height:var(--button-height-base)!important;font-size:var(--font-size-sm)!important}}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.ant-upload-list-item-actions{opacity:1!important;visibility:visible!important}.ant-upload-list-item .ant-upload-list-item-actions,.ant-upload-list-item:hover .ant-upload-list-item-actions{opacity:1!important}.ant-upload-list-item-action{opacity:1!important;visibility:visible!important}