@font-face{font-family:TripSans;src:local('TripSans'),url('../media/fonts/TripSans-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}:root{--primary-gradient:linear-gradient(135deg, #667eea 0%, #764ba2 100%);--primary-color:#667eea;--primary-dark:#5568d3;--secondary-color:#764ba2;--accent-color:#f093fb;--bg-main:#f8f9fa;--bg-secondary:#ffffff;--bg-card:#ffffff;--text-primary:#2d3748;--text-secondary:#718096;--text-muted:#a0aec0;--success-color:#48bb78;--success-light:#68d391;--warning-color:#ed8936;--error-color:#f56565;--info-color:#4299e1;--border-color:#e2e8f0;--border-radius-sm:8px;--border-radius-md:12px;--border-radius-lg:20px;--border-radius-xl:24px;--shadow-sm:0 1px 3px rgba(0, 0, 0, 0.1);--shadow-md:0 4px 6px rgba(0, 0, 0, 0.07);--shadow-lg:0 10px 25px rgba(0, 0, 0, 0.1);--shadow-xl:0 20px 40px rgba(0, 0, 0, 0.15);--transition-fast:0.15s ease-in-out;--transition-base:0.3s ease-in-out;--transition-slow:0.5s ease-in-out;--spacing-xs:0.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem}@media (prefers-color-scheme:dark){:root{--bg-main:#1a202c;--bg-secondary:#2d3748;--bg-card:#2d3748;--text-primary:#f7fafc;--text-secondary:#cbd5e0;--text-muted:#718096;--border-color:#4a5568}}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:TripSans,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);color:var(--text-primary);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:var(--spacing-lg);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xl)}.ad-container{width:100%;max-width:1200px;margin:20px auto;min-height:100px;display:block;position:relative}.ad-container ins.adsbygoogle{display:block;width:100%;min-height:90px}.converter-container{width:100%;max-width:800px;background:var(--bg-card);border-radius:var(--border-radius-xl);padding:var(--spacing-xl);box-shadow:0 10px 40px rgba(102,126,234,.15);text-align:center;position:relative;overflow:hidden;transition:transform var(--transition-base),box-shadow var(--transition-base);border:1px solid rgba(102,126,234,.1)}.converter-container::before{content:'';position:absolute;top:0;left:0;right:0;height:5px;background:var(--primary-gradient)}.converter-container:hover{transform:translateY(-5px);box-shadow:0 15px 50px rgba(102,126,234,.25);border-color:rgba(102,126,234,.2)}.instructions-container{width:100%;max-width:1000px;padding:var(--spacing-lg);text-align:center}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:700;margin-bottom:var(--spacing-sm)}h1{font-size:clamp(2rem, 5vw, 3rem);background:var(--primary-gradient);-webkit-background-clip:text;background-clip:text;margin-bottom:var(--spacing-md)}h2{font-size:clamp(1.5rem, 4vw, 2rem);color:var(--text-primary)}h3{font-size:clamp(1.2rem, 3vw, 1.5rem);color:var(--text-secondary);font-weight:600}p{color:var(--text-secondary);line-height:1.8}.highlight{position:relative;display:inline-block}#drop-area{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:280px;padding:var(--spacing-xl);border:3px dashed rgba(102,126,234,.3);border-radius:var(--border-radius-lg);background:linear-gradient(135deg,rgba(102,126,234,.05) 0,rgba(118,75,162,.05) 100%);position:relative;transition:all var(--transition-base);gap:var(--spacing-md);backdrop-filter:blur(10px)}#drop-area::before{content:'';position:absolute;inset:0;border-radius:var(--border-radius-lg);background:linear-gradient(135deg,rgba(102,126,234,.1) 0,rgba(118,75,162,.1) 100%);opacity:0;transition:opacity var(--transition-base)}#drop-area:hover::before{opacity:1}#drop-area:hover{border-color:rgba(102,126,234,.5);transform:scale(1.02);box-shadow:0 8px 32px rgba(102,126,234,.2)}#drop-area.dragover{background:var(--primary-gradient);border-color:transparent;transform:scale(1.05);box-shadow:0 12px 48px rgba(102,126,234,.4)}#drop-area.dragover *{color:#fff!important}#drop-area.dragover .drop-icon{background:rgba(255,255,255,.2);backdrop-filter:blur(10px)}#drop-area.dropping{animation:.3s ease-in-out dropPulse}@keyframes dropPulse{0%,100%{transform:scale(1)}50%{transform:scale(.95)}}.drop-icon{width:100px;height:100px;background:var(--primary-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative;animation:3s ease-in-out infinite float;box-shadow:0 8px 24px rgba(102,126,234,.3)}.drop-icon::before{content:'';width:50px;height:50px;background-image:url(../media/imgs/upload_icon.png);background-size:contain;background-repeat:no-repeat;background-position:center;filter:brightness(0) invert(1)}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}#drop-area p{font-size:1.1rem;color:var(--text-primary);margin:0;font-weight:600}#or-label{color:var(--text-secondary);font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:1px}label[for=file-upload]{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:14px 32px;background:var(--primary-gradient);color:#fff;border-radius:var(--border-radius-md);font-weight:600;font-size:1rem;cursor:pointer;border:none;box-shadow:var(--shadow-md);transition:all var(--transition-base);text-transform:none;position:relative;z-index:10}label[for=file-upload]:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}label[for=file-upload]:active{transform:translateY(0);box-shadow:var(--shadow-sm)}#file-upload{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}#file-list{list-style:none;padding:0;margin:var(--spacing-lg) 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--spacing-md)}#file-list li{background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:var(--border-radius-md);padding:var(--spacing-md);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);position:relative;transition:all var(--transition-base);cursor:default}#file-list li:hover{border-color:var(--primary-color);transform:translateY(-3px);box-shadow:var(--shadow-md)}#file-list li::before{content:'';width:48px;height:48px;background-image:url(../media/imgs/icon_heic.png);background-size:contain;background-repeat:no-repeat;background-position:center}#file-list li span.text-content{font-size:.9rem;color:var(--text-secondary);text-align:center;word-break:break-word;width:100%}#file-list li img{width:28px;height:28px;transition:transform var(--transition-fast)}#file-list li img:hover{transform:scale(1.2)}.close-btn{position:absolute;top:8px;right:8px;width:24px;height:24px;background-image:url(../media/imgs/close_icon.png);background-size:contain;background-repeat:no-repeat;cursor:pointer;opacity:.6;transition:all var(--transition-fast)}.close-btn:hover{opacity:1;transform:rotate(90deg)}#counter{font-size:1rem;font-weight:600;color:var(--text-muted);margin:var(--spacing-sm) 0}#convert-button{display:inline-flex;align-items:center;justify-content:center;padding:16px 48px;background:var(--success-color);color:#fff;border:none;border-radius:var(--border-radius-md);font-size:1.1rem;font-weight:700;cursor:pointer;box-shadow:var(--shadow-md);transition:all var(--transition-base);text-transform:uppercase;letter-spacing:.5px;margin-top:var(--spacing-md)}#convert-button:hover:not(:disabled){background:var(--success-light);transform:translateY(-3px);box-shadow:var(--shadow-lg)}#convert-button:active:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-sm)}#convert-button:disabled{background:var(--text-muted);cursor:not-allowed;opacity:.6}.grid-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.grid-item{background:var(--bg-card);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:all var(--transition-base);border:2px solid transparent}.grid-item:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.grid-item h3{color:var(--primary-color);margin-bottom:var(--spacing-md)}.grid-item p{color:var(--text-secondary);line-height:1.8}.img-text{vertical-align:middle;width:28px;height:28px;display:inline-block}.navbar{background:linear-gradient(135deg,rgba(102,126,234,.95) 0,rgba(118,75,162,.95) 100%);backdrop-filter:blur(20px);padding:var(--spacing-md) var(--spacing-xl);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:1000;box-shadow:0 4px 24px rgba(102,126,234,.3);border-bottom:1px solid rgba(255,255,255,.1)}.logo{display:flex;align-items:center;text-decoration:none;transition:all var(--transition-fast);filter:brightness(1)}.logo:hover{transform:scale(1.05);filter:brightness(1.1) drop-shadow(0 4px 12px rgba(255, 255, 255, .3))}.logo img{height:45px;width:auto}.nav-links{display:flex;list-style:none;gap:var(--spacing-lg);align-items:center}.nav-links li a{color:rgba(255,255,255,.95);text-decoration:none;font-weight:500;font-size:.95rem;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--border-radius-sm);transition:all var(--transition-fast);position:relative}.nav-links li a::after{content:'';position:absolute;bottom:-2px;left:50%;width:0;height:2px;background:#fff;transition:all var(--transition-base);transform:translateX(-50%)}.nav-links li a:hover{color:#fff;background:rgba(255,255,255,.1)}.nav-links li a:hover::after{width:100%}.language-div{position:relative}.language-button{background:rgba(255,255,255,.2);color:#fff;border:2px solid rgba(255,255,255,.3);padding:10px 20px;border-radius:var(--border-radius-sm);font-weight:600;cursor:pointer;transition:all var(--transition-base);font-size:.9rem;backdrop-filter:blur(10px)}.language-button:hover{background:rgba(255,255,255,.3);border-color:rgba(255,255,255,.5);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.2)}.language-list{position:absolute;top:calc(100% + 10px);right:0;background:linear-gradient(135deg,rgba(102,126,234,.98) 0,rgba(118,75,162,.98) 100%);border-radius:var(--border-radius-md);box-shadow:0 8px 32px rgba(0,0,0,.3),0 4px 16px rgba(102,126,234,.4);padding:var(--spacing-xs);min-width:160px;border:2px solid rgba(255,255,255,.2);z-index:1001;opacity:1;transform:translateY(0);transition:all var(--transition-fast);backdrop-filter:blur(20px)}.language-list[hidden]{display:none;opacity:0;transform:translateY(-10px)}.language-option{display:block;padding:12px 16px;color:rgba(255,255,255,.95);text-decoration:none;border-radius:var(--border-radius-sm);transition:all var(--transition-fast);font-size:.95rem;font-weight:500;background:0 0}.language-option:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateX(3px)}.language-option.selected{background:rgba(255,255,255,.3);font-weight:600;color:#fff;border-left:3px solid #fff}.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}.menu-toggle .bar{width:25px;height:3px;background:#fff;border-radius:3px;transition:all var(--transition-base);box-shadow:0 2px 4px rgba(0,0,0,.2)}#snackbar{position:fixed;bottom:-100px;left:50%;transform:translateX(-50%);background:var(--error-color);color:#fff;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--border-radius-md);box-shadow:var(--shadow-xl);font-weight:600;z-index:10000;min-width:300px;text-align:center;opacity:0;transition:all var(--transition-slow)}#snackbar.show{bottom:30px;opacity:1}#snackbar.hide{bottom:-100px;opacity:0}footer{background:linear-gradient(135deg,rgba(102,126,234,.95) 0,rgba(118,75,162,.95) 100%);color:#fff;padding:var(--spacing-xl) var(--spacing-lg);text-align:center;margin-top:var(--spacing-xl);box-shadow:0 -4px 24px rgba(102,126,234,.2);position:relative}footer::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent 0,rgba(255,255,255,.5) 50%,transparent 100%)}.footer-bottom{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-md)}.footer-bottom p{color:rgba(255,255,255,.95);font-size:.95rem;margin:0}.footer-bottom .copyright{font-weight:500}.footer-links{display:flex;justify-content:center;gap:var(--spacing-lg);flex-wrap:wrap;margin-bottom:var(--spacing-sm)}.footer-links a{color:rgba(255,255,255,.9);text-decoration:none;font-size:.9rem;transition:all var(--transition-fast);padding:var(--spacing-xs)}.footer-links a:hover{color:#fff;text-shadow:0 0 10px rgba(255,255,255,.5)}@media (max-width:1024px){footer{padding:var(--spacing-lg) var(--spacing-md)}.footer-links{flex-direction:column;gap:var(--spacing-sm)}body{background:linear-gradient(135deg,#667eea 0,#764ba2 100%)}.nav-links{position:fixed;top:0;right:-100%;height:100vh;width:70%;max-width:300px;background:linear-gradient(180deg,rgba(102,126,234,.98) 0,rgba(118,75,162,.98) 100%);backdrop-filter:blur(20px);flex-direction:column;padding:var(--spacing-xl);box-shadow:-4px 0 24px rgba(0,0,0,.3);transition:right var(--transition-base);align-items:flex-start;gap:var(--spacing-md);z-index:999}.nav-links.active{right:0}.menu-toggle{display:flex;z-index:1000}.menu-toggle.active .bar:first-child{transform:translateY(8px) rotate(45deg)}.menu-toggle.active .bar:nth-child(2){opacity:0}.menu-toggle.active .bar:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.language-div{width:100%;margin-top:var(--spacing-md)}.language-list{position:relative;top:auto;right:auto;width:100%;margin-top:var(--spacing-xs)}.nav-links li a{padding:var(--spacing-xs) 0}.container{padding:var(--spacing-md);gap:var(--spacing-lg)}.converter-container{padding:var(--spacing-lg);max-width:100%}.converter-container:hover{transform:translateY(-2px)}.grid-container{grid-template-columns:1fr}h1{font-size:2rem}h2{font-size:1.5rem}#drop-area{min-height:240px;padding:var(--spacing-lg)}.drop-icon{width:80px;height:80px}.drop-icon::before{width:40px;height:40px}}@media (max-width:480px){body{background:linear-gradient(135deg,#667eea 0,#764ba2 100%);font-size:14px}.container{padding:var(--spacing-sm);gap:var(--spacing-md)}.converter-container{padding:var(--spacing-md);border-radius:var(--border-radius-lg);box-shadow:0 8px 32px rgba(102,126,234,.2)}.converter-container:hover{transform:none}#drop-area{min-height:200px;padding:var(--spacing-md);gap:var(--spacing-sm)}.drop-icon{width:70px;height:70px}.drop-icon::before{width:35px;height:35px}.navbar{padding:var(--spacing-sm) var(--spacing-md)}#file-list{grid-template-columns:1fr;gap:var(--spacing-sm)}h1{font-size:1.75rem;margin-bottom:var(--spacing-sm)}h2{font-size:1.25rem}h3{font-size:1.1rem}p{font-size:.9rem}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;font-size:.9rem}.nav-links{width:80%;max-width:250px;padding:var(--spacing-lg)}.nav-links li a{padding:var(--spacing-xs) 0}.instructions-container{padding:var(--spacing-md)}}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mt-5{margin-top:var(--spacing-xl)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mb-5{margin-bottom:var(--spacing-xl)}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.6s ease-out fadeIn}@keyframes slideInUp{from{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.slide-in-up{animation:.5s ease-out slideInUp}@keyframes spin{to{transform:rotate(360deg)}}.loading{animation:1s linear infinite spin}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}.pulse{animation:2s ease-in-out infinite pulse}
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