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var(--border-color)}.format-btn.cancel:hover{background:var(--bg-tertiary)}.format-btn.confirm{background:var(--text-primary);color:var(--bg-primary)}.format-btn.confirm:hover{opacity:.9}.format-btn:active{transform:scale(.98)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@media(max-width:768px){.format-modal-overlay{padding:0;align-items:stretch}.format-modal{max-width:100%;width:100%;height:100%;max-height:100%;margin:0;border-radius:0;display:flex;flex-direction:column}.format-modal-header{padding:16px 20px 14px;flex-shrink:0;text-align:left}.format-modal-title{font-size:16px;line-height:1.4;justify-content:flex-start;gap:6px}.format-modal-icon{font-size:20px}.format-modal-subtitle{font-size:13px;margin-top:6px}.format-modal-body{flex:1;overflow-y:auto;padding:16px 20px}.format-comparison{display:none}.format-table-container{display:block;margin-bottom:16px;overflow-x:auto}.format-table{font-size:13px}.format-table th,.format-table td{padding:8px 6px}.format-table th{font-size:12px;position:sticky;top:0;z-index:1}.format-suggestion{padding:14px;margin-top:8px}.suggestion-item{font-size:14px;flex-direction:column;gap:4px;margin-bottom:12px}.suggestion-item strong{white-space:normal}.format-modal-footer{padding:12px 20px 16px;flex-direction:column-reverse;gap:10px;flex-shrink:0;box-shadow:0 -2px 10px #0000001a}.format-btn{width:100%;padding:13px 16px;font-size:15px}}.app-container{height:100vh;background:var(--bg-primary);display:flex;flex-direction:column;overflow:hidden}.app-header{position:fixed;top:0;left:0;right:0;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:24px 32px;flex-shrink:0;z-index:1000}@supports not (view-transition-name: none){.app-container{transition:background .3s ease}.app-header{transition:background .3s ease,border-color .3s ease}}.header-content{display:flex;justify-content:space-between;align-items:center;width:100%}.header-left{display:flex;align-items:center;gap:16px}.app-logo{width:48px;height:48px;flex-shrink:0}.app-header h1{font-size:24px;font-weight:600;color:var(--text-primary);margin:0 0 4px}.app-header p{font-size:14px;color:var(--text-secondary);margin:0}@supports not (view-transition-name: none){.app-header h1,.app-header p{transition:color .3s ease}}.main-content{display:flex;flex:1;overflow:hidden;margin-top:96px;width:100%}.preview-area{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;overflow:auto;-webkit-overflow-scrolling:touch;min-width:0}.mobile-layout-wrapper{flex:1;display:flex;flex-direction:column;width:100%}@media(max-width:1024px){.app-container{height:auto;min-height:100vh;overflow:visible}.main-content{flex-direction:column;overflow:visible;min-height:calc(100vh - 88px);padding-bottom:90px;margin-top:72px}.mobile-layout-wrapper{display:flex;flex-direction:column;width:100%}.preview-area{flex:0 0 auto;padding:20px 16px;display:flex;align-items:center;justify-content:center;min-height:50vh;overflow:visible;-webkit-overflow-scrolling:touch;position:relative;contain:layout style paint}}@media(max-width:768px){.app-header{padding:14px 16px}.header-content{gap:12px;align-items:flex-start}.header-left{gap:12px}.app-logo{width:40px;height:40px}.app-header h1{font-size:18px}.app-header p{font-size:13px;display:none}.preview-area{padding:12px}}@media(max-width:480px){.app-header{padding:10px 12px}.header-content{gap:8px;align-items:center}.header-left{gap:10px}.app-logo{width:36px;height:36px}.app-header h1{font-size:16px;margin-bottom:0}.app-header p{display:none}.preview-area{padding:10px}}::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}::view-transition-old(root){z-index:1}::view-transition-new(root){z-index:2147483646}.mobile-export-bar{position:fixed;bottom:0;left:0;right:0;padding:12px 16px;padding-bottom:max(16px,env(safe-area-inset-bottom));background:var(--bg-secondary);border-top:1px solid var(--border-color);z-index:1100;box-shadow:0 -2px 10px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.mobile-export-btn{width:100%;padding:14px 24px;font-size:16px;font-weight:600;color:var(--export-btn-text);background:var(--export-btn-bg);border:none;border-radius:12px;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #16a34a4d;position:relative;display:flex;align-items:center;justify-content:center;gap:8px;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.mobile-export-btn:hover{background:var(--export-btn-hover);transform:translateY(-1px);box-shadow:0 4px 12px #16a34a66}.mobile-export-btn:active{background:var(--export-btn-active);transform:translateY(0)}.mobile-export-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.mobile-export-btn.exporting{background:var(--export-btn-active);pointer-events:none}.mobile-export-btn.exporting:before{content:"";width:16px;height:16px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@supports not (view-transition-name: none){.mobile-export-bar{transition:background .3s ease,border-color .3s ease}}