:root{--pt-green:#22c55e;--pt-green-d:#16a34a;--pt-blue:#3b82f6;--pt-purple:#8b5cf6;--pt-bg:#f9fafb;--pt-white:#ffffff;--pt-text:#111827;--pt-muted:#6b7280;--pt-border:#e5e7eb;--pt-radius:12px;--pt-shadow:0 1px 3px rgba(0, 0, 0, .08),0 4px 16px rgba(0, 0, 0, .06)}
*,::after,::before{box-sizing:border-box;margin:0;padding:0}
body{font-family:Inter,system-ui,sans-serif;background:var(--pt-bg);color:var(--pt-text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.pt-header{background:var(--pt-white);border-bottom:1px solid var(--pt-border);position:sticky;top:0;z-index:200}
.pt-header-inner{max-width:1100px;margin:0 auto;padding:0 1.5rem;height:60px;display:flex;align-items:center;justify-content:space-between}
.pt-logo{display:flex;align-items:center;gap:.5rem;font-weight:800;font-size:1.1rem;color:var(--pt-text)}
.pt-logo img{width:28px;height:28px}
.pt-nav{display:flex;align-items:center;gap:1.5rem;font-size:.9rem;font-weight:500;color:var(--pt-muted)}
.pt-nav a:hover{color:var(--pt-text)}
.pt-nav .pt-nav-cta{background:var(--pt-green);color:#fff;padding:.4rem 1rem;border-radius:8px;font-weight:600;transition:background .2s}
.pt-nav .pt-nav-cta:hover{background:var(--pt-green-d);color:#fff}
.pt-page{max-width:1100px;margin:0 auto;padding:2.5rem 1.5rem 4rem}
.heic-hero{text-align:center;padding:3rem 1rem 2rem}
.heic-badge{display:inline-flex;align-items:center;gap:.4rem;background:#dcfce7;color:var(--pt-green-d);border-radius:50px;padding:.3rem 1rem;font-size:.85rem;font-weight:600;margin-bottom:1.25rem}
.heic-hero h1{font-size:clamp(1.75rem, 4vw, 2.75rem);font-weight:800;line-height:1.2;margin-bottom:1rem;color:var(--pt-text)}
.heic-hero h1 span{color:var(--pt-green)}
.heic-hero p{font-size:1.1rem;color:var(--pt-muted);max-width:580px;margin:0 auto 1.5rem}
.heic-trust{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;font-size:.875rem;color:var(--pt-muted);margin-top:1rem}
.heic-trust span{display:flex;align-items:center;gap:.35rem}
.heic-converter{background:var(--pt-white);border:1px solid var(--pt-border);border-radius:16px;box-shadow:var(--pt-shadow);padding:2rem;margin:2rem 0;position:relative;overflow:hidden}
.heic-converter::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--pt-green) 0,var(--pt-blue) 100%)}
.heic-format-row{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}
.heic-format-row label{font-weight:600;font-size:.9rem;white-space:nowrap}
.format-btns{display:flex;gap:.5rem}
.format-btn{padding:.45rem 1.1rem;border:1.5px solid var(--pt-border);background:var(--pt-white);border-radius:8px;cursor:pointer;font-size:.9rem;font-weight:600;transition:all .2s;font-family:inherit;color:var(--pt-text)}
.format-btn:hover{border-color:var(--pt-green);color:var(--pt-green)}
.format-btn.active{border-color:var(--pt-green);background:var(--pt-green);color:#fff}
.heic-quality-row{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}
.heic-quality-row label{font-weight:600;font-size:.9rem;white-space:nowrap}
.heic-quality-row input[type=range]{flex:1;min-width:140px;accent-color:var(--pt-green);height:4px;cursor:pointer}
.quality-val{font-weight:700;color:var(--pt-green);min-width:44px;text-align:right}
.upload-zone{border:2px dashed var(--pt-border);border-radius:12px;padding:3.5rem 2rem;text-align:center;cursor:pointer;transition:all .25s;background:var(--pt-bg)}
.upload-zone.dragover,.upload-zone:hover{border-color:var(--pt-green);background:#f0fdf4}
.upload-zone .uz-icon{font-size:3rem;margin-bottom:.75rem;display:block}
.upload-zone h3{font-size:1.2rem;font-weight:700;margin-bottom:.4rem;color:var(--pt-text)}
.upload-zone p{color:var(--pt-muted);font-size:.9rem;margin-bottom:1.25rem}
.btn-upload{background:var(--pt-green);color:#fff;border:none;padding:.7rem 1.75rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s;font-family:inherit}
.btn-upload:hover{background:var(--pt-green-d)}
.file-list{margin-top:1.5rem;display:none}
.file-list.active{display:block}
.file-item{display:flex;align-items:center;justify-content:space-between;padding:.85rem 1rem;background:var(--pt-bg);border-radius:8px;margin-bottom:.5rem;border:1px solid var(--pt-border);transition:border-color .2s}
.file-info{display:flex;align-items:center;gap:.75rem;flex:1;min-width:0}
.file-icon{font-size:1.4rem;flex-shrink:0}
.file-name{font-weight:500;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-size{color:var(--pt-muted);font-size:.8rem;margin-top:.1rem}
.remove-file{background:0 0;border:none;color:var(--pt-muted);cursor:pointer;font-size:1.1rem;border-radius:6px;padding:.3rem .55rem;transition:all .2s;flex-shrink:0;line-height:1}
.remove-file:hover{background:#fee2e2;color:#ef4444}
.progress-container{margin-top:1.5rem;display:none}
.progress-container.active{display:block}
.progress-bar{height:8px;background:var(--pt-border);border-radius:10px;overflow:hidden;margin-bottom:.75rem}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--pt-green),var(--pt-blue));width:0%;transition:width .3s ease;border-radius:10px}
.progress-text{text-align:center;color:var(--pt-muted);font-size:.9rem}
.converter-actions{display:flex;gap:1rem;margin-top:1.75rem;flex-wrap:wrap}
.btn-convert{background:var(--pt-green);color:#fff;border:none;padding:.85rem 2rem;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 2px 8px rgba(34,197,94,.25)}
.btn-convert:hover{background:var(--pt-green-d);transform:translateY(-1px);box-shadow:0 4px 14px rgba(34,197,94,.35)}
.btn-download-all{background:var(--pt-white);color:var(--pt-green);border:1.5px solid var(--pt-green);padding:.85rem 2rem;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit;display:none}
.btn-download-all:hover{background:var(--pt-green);color:#fff}
.heic-howto{margin:3rem 0}
.section-label{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--pt-green);margin-bottom:.5rem}
.section-title{font-size:clamp(1.4rem, 3vw, 1.9rem);font-weight:800;margin-bottom:.6rem;color:var(--pt-text)}
.section-sub{color:var(--pt-muted);font-size:1rem;max-width:600px;margin-bottom:2rem;line-height:1.7}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem}
.step-card{background:var(--pt-white);border:1px solid var(--pt-border);border-radius:12px;padding:1.5rem;transition:box-shadow .2s}
.step-card:hover{box-shadow:var(--pt-shadow)}
.step-num{width:36px;height:36px;border-radius:50%;background:var(--pt-green);color:#fff;font-weight:700;font-size:1rem;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;flex-shrink:0}
.step-card h3{font-size:1rem;font-weight:700;margin-bottom:.4rem;color:var(--pt-text)}
.step-card p{font-size:.875rem;color:var(--pt-muted);line-height:1.65}
.heic-info{margin:3rem 0}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.25rem;margin-top:2rem}
.info-card{background:var(--pt-white);border:1px solid var(--pt-border);border-radius:12px;padding:1.75rem;transition:box-shadow .2s}
.info-card:hover{box-shadow:var(--pt-shadow)}
.info-card h3{font-size:1.05rem;font-weight:700;margin-bottom:.75rem;color:var(--pt-text)}
.info-card p,.info-card ul{font-size:.9rem;color:var(--pt-muted);line-height:1.75}
.info-card ul{padding-left:1.25rem;margin-top:.5rem}
.info-card li{margin-bottom:.35rem}
.heic-blog{margin:3rem 0}
.blog-list{margin-top:1.5rem;max-width:860px}
.blog-item{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid var(--pt-border);transition:padding .2s}
.blog-item:hover{padding-left:.5rem}
.blog-item:last-child{border-bottom:none}
.blog-item a{color:var(--pt-text);font-weight:500;font-size:.95rem;transition:color .2s;flex:1}
.blog-item a:hover{color:var(--pt-green)}
.blog-meta{color:var(--pt-muted);font-size:.85rem;white-space:nowrap;margin-left:1.5rem}
.pt-footer{background:#111827;color:rgba(255,255,255,.7);padding:2rem 1.5rem;margin-top:4rem;font-size:.875rem}
.pt-footer-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.pt-footer-links{display:flex;gap:1.25rem;flex-wrap:wrap}
.pt-footer-links a{color:rgba(255,255,255,.6);transition:color .2s}
.pt-footer-links a:hover{color:#fff}
@media (max-width:768px){.pt-nav{gap:.75rem;font-size:.82rem}
.heic-trust{gap:1rem}
.upload-zone{padding:2.5rem 1.25rem}
.info-grid{grid-template-columns:1fr}
.steps-grid{grid-template-columns:1fr}
}
@media (max-width:640px){.pt-header-inner{padding:0 1rem}
.pt-nav{gap:.5rem;font-size:.8rem}
.pt-nav .pt-nav-cta{padding:.35rem .75rem}
.converter-actions{flex-direction:column}
.btn-convert,.btn-download-all{width:100%;text-align:center}
.heic-format-row{flex-direction:column;align-items:flex-start;gap:.75rem}
.heic-quality-row{flex-wrap:nowrap}
.blog-item{flex-direction:column;align-items:flex-start;gap:.35rem}
.blog-meta{margin-left:0}
.pt-footer-inner{flex-direction:column;text-align:center}
.pt-footer-links{justify-content:center}
}