:root{--bg-main:#ffffff;--bg-soft:#f7f8fa;--bg-dark:#111111;--text-main:#1f2937;--text-muted:#212528;--border-light:#e5e7eb;--border-dark:#111111;--accent:#111111}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;background:var(--bg-main);color:var(--text-main);line-height:1.6;min-height:100vh}.container{max-width:952px;margin:0 auto;padding:10px}header{background:var(--bg-main);padding:7px 0;border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:1000}.header-content{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center}.logo{font-size:28px;font-weight:700;color:#03a9f4;text-decoration:none}.logo span:last-child{color:var(--accent)}.nav-buttons{display:flex;gap:10px}.lang-btn{background:var(--bg-main);color:var(--text-main);border:1px solid var(--border-light);padding:8px 16px;border-radius:8px;cursor:pointer;font-size:14px;transition:0.3s}.lang-btn:hover{background:var(--bg-soft);border-color:var(--accent)}.hero{text-align:center;padding:10px 0 5px}.hero h1{font-size:48px;font-weight:700;color:#03a9f4;margin-bottom:4px}.hero h2{font-size:24px;color:var(--text-muted);font-weight:400;margin-bottom:30px}.tab-nav{display:flex;justify-content:center;gap:10px;margin-bottom:5px;flex-wrap:wrap}.tab-btn{background:var(--bg-main);color:var(--text-main);border:1px solid var(--border-light);padding:12px 30px;border-radius:10px;cursor:pointer;font-size:16px;font-weight:600;transition:0.3s;text-decoration:none}.tab-btn.active{text-decoration:aliceblue;background:var(--accent);color:#fff;border-color:var(--accent)}.tab-btn:hover{border-color:var(--accent);text-decoration:none}.tab-btn a{text-decoration:none}.download-section{padding-top:10px;padding-bottom:40px}.input-group{display:flex;gap:10px}#videoUrl{flex:1;padding:18px 20px;border:2px solid #03a9f4;border-radius:12px;background:#fff;color:var(--text-main);font-size:16px;outline:none}#videoUrl::placeholder{color:#a7adb3}.btn{padding:18px 30px;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:0.3s}.btn-paste{background:#fff;border:2px solid var(--border-dark);color:var(--text-main)}.btn-paste:hover{background:var(--bg-soft)}.btn-primary{background:#03a9f4;color:#fff;border:none}.btn-primary:hover{box-shadow:0 10px 25px rgb(0 0 0 / .2)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.loading{display:none;text-align:center;padding:20px}.loading.show{display:block}.spinner{border:3px solid #dbeff7;border-top:3px solid #03a9f4;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 15px}@keyframes spin{to{transform:rotate(360deg)}}.article-section{background:var(--bg-main);border-radius:20px;padding:40px;margin-bottom:40px;border:1px solid var(--border-light)}.article-section h2{font-size:32px;color:var(--accent);margin-bottom:20px;line-height:normal}.article-section h3{font-size:22px;color:var(--text-main);margin:30px 0 15px}.article-section p{color:var(--text-muted);margin-bottom:15px;line-height:1.8}.article-section em{color:var(--accent);font-style:normal;font-weight:600}.article-section ul,ol{margin-left:30px;margin-bottom:25px}.steps-section{background:#fff;border-radius:20px;padding:40px;margin-bottom:40px;color:var(--text-muted)}.steps-section h2{font-size:32px;color:var(--text-main);text-align:center;margin-bottom:30px}.step{display:flex;gap:30px;margin-bottom:25px;padding-bottom:19px;border-bottom:1px solid var(--border-light)}.step-number{color:var(--text-main);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:50px}.step-content h3{color:var(--text-main)}.step-content p{color:var(--text-muted)}.faq-section h2{font-size:32px;text-align:center;margin-bottom:20px;color:var(--text-main)}.faq-item{background:#03a9f4;border-radius:12px;margin-bottom:15px;overflow:hidden;transition:border-color 0.3s}.faq-question{padding:20px;font-size:18px;padding-left:30px;font-weight:600;color:#fff;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-answer{display:block;max-height:0;overflow:hidden;padding:0 50px 0 35px;color:#fff;font-size:15px;line-height:1.7;transform:translateY(-6px);transition:max-height 0.35s ease,padding 0.25s ease}.faq-item.active .faq-answer{max-height:800px;opacity:1;padding:0 20px 35px;transform:translateY(0)}.faq-question span{font-size:22px;transition:transform 0.25s ease}.faq-item.open .faq-question span{transform:rotate(180deg)}.disclaimer-box{background:var(--bg-soft);border-left:4px solid #03a9f4;padding:20px;margin:30px 0;border-radius:8px}.disclaimer-box h4{color:var(--accent)}.disclaimer-box p{color:var(--text-muted)}footer{background:var(--bg-soft);padding:40px 0 20px}.footer-content{max-width:1200px;margin:auto;padding:0 20px}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px}.footer-section h3{color:var(--accent);margin-bottom:15px}.footer-section a{color:var(--accent);text-decoration:none}.footer-section a:hover{color:var(--accent)}.footer-section ul{list-style:none}.footer-bottom{text-align:center;color:var(--accent);font-size:14px;margin-top:30px}.multi-lang-menu{position:absolute;top:100%;right:0;min-width:260px;background:#fff;border:1px solid var(--border-light);border-radius:10px;padding:6px;margin-top:10px;box-shadow:0 12px 30px rgb(0 0 0 / .08);opacity:0;visibility:hidden;transform:translateY(10px);transition:all 0.25s ease;z-index:9999;display:grid;grid-template-columns:repeat(2,1fr);column-gap:4px}.dropdown.open .multi-lang-menu{opacity:1;visibility:visible;transform:translateY(0)}.multi-lang-menu li{list-style:none}.multi-lang-menu a{display:flex;align-items:center;gap:8px;padding:6px 10px;font-size:14px;color:var(--text-main);text-decoration:none;border-radius:6px;transition:background 0.2s,color 0.2s}.multi-lang-menu a:hover{background:var(--bg-soft);color:var(--accent)}.multi-lang-menu .active,.multi-lang-menu a.active{font-weight:600;color:var(--accent)}.emoji-country{font-size:18px;line-height:1}.dropdown{position:relative}.dropdown>a{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;border:1px solid var(--border-light);color:var(--text-main);text-decoration:none;font-size:14px;transition:background 0.2s,border-color 0.2s}@media (max-width:768px){.multi-lang-menu{grid-template-columns:repeat(2,1fr);min-width:280px;left:0;left:auto}}.contact-section{padding:80px 20px;background:var(--bg-soft)}.contact-section h2{text-align:center;font-size:32px;color:var(--text-main);margin-bottom:10px}.contact-desc{text-align:center;color:var(--text-muted);margin-bottom:40px;font-size:15px}.contact-form{max-width:600px;margin:auto;background:#fff;padding:35px;border-radius:14px;box-shadow:0 20px 50px rgb(0 0 0 / .06)}.form-group{margin-bottom:18px}.form-group label{display:block;margin-bottom:6px;font-size:14px;color:var(--text-main);font-weight:600}.form-group input,.form-group textarea{width:100%;padding:12px 14px;font-size:14px;border-radius:8px;border:1px solid var(--border-light);outline:none;transition:border-color 0.2s,box-shadow 0.2s;font-family:inherit}.form-group input:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgb(0 123 255 / .15)}.btn-submit{width:100%;padding:14px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;border:none;border-radius:10px;cursor:pointer;transition:background 0.25s,transform 0.15s}.btn-submit:hover{background:#202020;transform:translateY(-1px)}@media (max-width:600px){.contact-form{padding:25px}}@media (max-width:768px){.hero h1{font-size:40px;line-height: 2.8rem;}.hero h2{font-size:18px;margin-bottom:0px;}.input-group{flex-direction:column}.btn{width:100%}.article-section,.download-section,.steps-section{padding:25px}}#ajaxResult{max-width:720px;margin:0 auto;text-align:center}#ajaxResult img{width:75px;height:265px;object-fit:cover;max-width:420px;border-radius:14px;box-shadow:0 10px 25px rgb(0 0 0 / .15);margin-bottom:18px}#ajaxResult p{font-size:15px;line-height:1.6;color:#333;margin-bottom:22px;word-break:break-word;padding:0 10px}#ajaxResult .btn{display:inline-block;min-width:220px;padding:14px 18px;margin:8px 6px;font-size:15px;font-weight:600;text-decoration:none;border-radius:10px;transition:all 0.25s ease;cursor:pointer}#ajaxResult .btn-primary{background:#0d6efd;color:#fff}#ajaxResult .btn-success{background:#198754;color:#fff}#ajaxResult .btn-warning{background:#ffc107;color:#000}#ajaxResult .btn-dark{background:#111;color:#fff}#ajaxResult .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgb(0 0 0 / .18);opacity:.95}@media (max-width:480px){#ajaxResult .btn{width:100%;min-width:unset}#ajaxResult img{width:75px;height:175px}}#ajaxError{max-width:720px;margin:20px auto 0;text-align:center}.alert{padding:14px 18px;border-radius:10px;font-size:14px;line-height:1.6;margin-bottom:15px;animation:fadeIn 0.25s ease-in-out}.alert-error{background:#fdecea;color:#611a15;border:1px solid #f5c6cb}.alert-warning{background:#fff4e5;color:#663c00;border:1px solid #ffe0b2}.alert-info{background:#e7f3ff;color:#084298;border:1px solid #b6d4fe}@keyframes fadeIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}@media (max-width:480px){.alert{font-size:13px;padding:12px 14px}}