:root{--primary:#D82148;--primary-hover:#B81639;--primary-glow:rgba(216,33,72,0.15);--primary-soft:#FDF0F3;--success:#10b981;--success-bg:rgba(16,185,129,0.1);--warning:#f59e0b;--bg-page:#f8fafc;--bg-card:#ffffff;--bg-card-subtle:#f8fafc;--bg-input:#f1f5f9;--text-main:#1E293B;--text-muted:#64748b;--text-light:#94a3b8;--border:#e2e8f0;--border-focus:#D82148;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -2px rgba(0,0,0,0.05);--shadow-lg:0 10px 25px -3px rgba(0,0,0,0.08),0 4px 6px -4px rgba(0,0,0,0.04);--font-sans:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);background-color:#ffffff;color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 1.25rem}.site-header{background:rgba(255,255,255,0.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;transition:all 0.2s ease}.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:4.25rem}.brand-logo{display:flex;align-items:center;gap:0.65rem;font-weight:800;font-size:1.5rem;letter-spacing:-0.03em;color:var(--primary);transition:opacity 0.15s ease;flex-shrink:0}.brand-logo:hover{opacity:0.88}.nav-links{display:flex;align-items:center;gap:1.5rem;list-style:none}.nav-links a{font-size:0.925rem;font-weight:600;color:var(--text-muted);transition:color 0.15s ease}.nav-links a:hover{color:var(--primary)}.hero-section{background-color:var(--primary-soft);border-bottom:1px solid rgba(216,33,72,0.1);padding:3.5rem 0 4rem;text-align:center;margin-bottom:3rem;width:100%}.badge-pill{display:inline-flex;align-items:center;gap:0.45rem;background:#ffffff;color:var(--primary);padding:0.4rem 1rem;border-radius:var(--radius-full);font-size:0.825rem;font-weight:700;margin-bottom:1.25rem;border:1px solid rgba(216,33,72,0.18);box-shadow:0 1px 3px rgba(216,33,72,0.05)}.hero-title{font-size:clamp(1.85rem,4vw,2.5rem);font-weight:700;letter-spacing:-0.015em;line-height:1.25;margin-bottom:0.85rem;color:var(--text-main)}.hero-lead{font-size:clamp(1rem,2vw,1.15rem);color:var(--text-muted);max-width:680px;margin:0 auto 2.5rem}.tool-card{background:transparent;border:none;box-shadow:none;max-width:780px;margin:0 auto;padding:0}.input-box-wrapper{display:flex;align-items:center;gap:0.5rem;background:#ffffff;border:1px solid #e2e8f0;border-radius:var(--radius-full);padding:0.4rem 0.5rem 0.4rem 1.25rem;box-shadow:0 4px 14px rgba(0,0,0,0.05);transition:all 0.2s ease}.input-box-wrapper:focus-within{border-color:#cbd5e1;background:#ffffff;box-shadow:0 6px 20px rgba(0,0,0,0.08)}.url-input{flex:1;border:none;background:transparent;outline:none;font-size:1rem;font-family:inherit;color:var(--text-main);padding:0.5rem 0;min-width:0}.url-input::placeholder{color:var(--text-light)}.btn-icon{background:transparent;border:none;cursor:pointer;color:var(--text-muted);padding:0.5rem;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all 0.15s ease;flex-shrink:0}.btn-icon:hover{color:var(--text-main);background:rgba(0,0,0,0.05)}.btn-grab{background:var(--primary);color:#ffffff;border:none;padding:0.85rem 1.75rem;border-radius:var(--radius-full);font-size:1rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:0.5rem;transition:all 0.15s ease;flex-shrink:0}.btn-grab:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 16px rgba(216,33,72,0.3)}.btn-grab:active{transform:translateY(0)}.results-area{display:none;max-width:960px;margin:0 auto 4rem;animation:fadeIn 0.3s ease}.results-area.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.featured-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);margin-bottom:2.75rem}.preview-box{width:100%;aspect-ratio:16 / 9;background:#000000;overflow:hidden}.preview-box img{width:100%;height:100%;object-fit:cover}.card-body{padding:0.95rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;background:#ffffff;border-top:1px solid var(--border);flex-wrap:wrap}.card-meta{display:flex;align-items:center;gap:0.55rem}.hd-tag{display:inline-block;background:var(--bg-input);color:var(--text-muted);border:1px solid var(--border);font-size:0.725rem;font-weight:800;padding:0.15rem 0.45rem;border-radius:4px;letter-spacing:0.03em}.card-title{font-size:0.95rem;font-weight:700;color:var(--text-main)}.card-specs{font-size:0.85rem;color:var(--text-muted);font-weight:500}.card-actions{display:flex;align-items:center;gap:0.45rem;flex-wrap:wrap}.btn-copy,.btn-copy-url,.btn-copy-img{background:#ffffff;color:var(--text-main);padding:0.45rem 0.85rem;border-radius:var(--radius-full);font-weight:600;font-size:0.825rem;border:1px solid var(--border);cursor:pointer;display:inline-flex;align-items:center;gap:0.35rem;transition:all 0.15s ease}.btn-copy:hover,.btn-copy-url:hover,.btn-copy-img:hover{background:var(--bg-input);border-color:#cbd5e1}.btn-download{background:var(--primary);color:#ffffff;padding:0.45rem 1.15rem;border-radius:var(--radius-full);font-weight:700;font-size:0.825rem;border:none;cursor:pointer;display:inline-flex;align-items:center;gap:0.35rem;transition:all 0.15s ease}.btn-download:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(216,33,72,0.25)}.sub-resolutions-header{margin-bottom:1.25rem;padding-bottom:0.75rem;border-bottom:1px solid var(--border)}.sub-resolutions-title{font-size:1.15rem;font-weight:700;color:var(--text-main)}.sub-resolutions-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.sub-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform 0.2s ease,box-shadow 0.2s ease}.sub-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.sub-preview-box{width:100%;aspect-ratio:16 / 9;background:#000000;overflow:hidden}.sub-preview-box img{width:100%;height:100%;object-fit:cover}.content-section{padding:3rem 0;border-top:1px solid var(--border)}.content-article{max-width:820px;margin:0 auto}.content-article h2,.content-article h3{font-size:1.25rem;font-weight:600;letter-spacing:-0.01em;line-height:1.45;margin:2rem 0 0.85rem;color:var(--text-main)}.content-article p{color:var(--text-muted);font-size:1rem;line-height:1.75;margin-bottom:1.25rem}.content-article ul,.content-article ol{margin:0 0 1.5rem 1.5rem;color:var(--text-muted);font-size:1rem;line-height:1.7}.content-article code{background:var(--bg-input);padding:0.2rem 0.45rem;border-radius:4px;font-size:0.875em;color:var(--text-main);border:1px solid var(--border)}.content-article a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;font-weight:600;transition:opacity 0.15s ease}.content-article a:hover{opacity:0.8}.faq-section{max-width:820px;margin:2rem auto 4rem}.faq-title{font-size:1.45rem;font-weight:600;letter-spacing:-0.01em;margin-bottom:1.5rem;text-align:center;color:var(--text-main)}.faq-list{display:flex;flex-direction:column;gap:0.75rem}.faq-item{background:var(--bg-card-subtle);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:all 0.2s ease}.faq-item[open]{border-color:#cbd5e1;box-shadow:var(--shadow-sm)}.faq-question{padding:1.1rem 1.25rem;font-weight:600;font-size:0.975rem;color:var(--text-main);cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;user-select:none}.faq-question::-webkit-details-marker{display:none}.faq-question::after{content:"+";font-size:1.25rem;font-weight:400;color:var(--text-muted);transition:transform 0.2s ease}.faq-item[open] .faq-question::after{content:"−"}.faq-answer{padding:0 1.25rem 1.25rem;color:var(--text-muted);font-size:0.95rem;line-height:1.65}.related-section{max-width:820px;margin:0 auto 4rem;padding-top:2rem;border-top:1px solid var(--border)}.related-title{font-size:1.2rem;font-weight:600;letter-spacing:-0.01em;margin-bottom:1.25rem;color:var(--text-main)}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.related-card{background:#f8fafc;border:1px solid var(--border);padding:1rem;border-radius:var(--radius-md);font-weight:600;font-size:0.9rem;color:var(--text-main);transition:all 0.2s ease;display:flex;align-items:center;justify-content:space-between}.related-card:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.site-footer{background-color:var(--primary-soft);color:var(--text-muted);padding:3.5rem 0 2.5rem;font-size:0.875rem;border-top:1px solid rgba(216,33,72,0.1);margin-top:4rem}.footer-content{max-width:820px;margin:0 auto;padding:0 1.25rem}.footer-disclaimer{background:#ffffff;border:1px solid rgba(216,33,72,0.12);padding:1.15rem 1.35rem;border-radius:var(--radius-md);margin-bottom:2.5rem;line-height:1.6;color:var(--text-muted);text-align:center;box-shadow:0 2px 8px rgba(216,33,72,0.04)}.footer-nav-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-bottom:2.5rem;text-align:left}.footer-col-title{display:block;font-size:0.95rem;font-weight:700;color:var(--text-main);margin-bottom:0.85rem;letter-spacing:0.02em}.footer-col-links{list-style:none;display:flex;flex-direction:column;gap:0.6rem}.footer-col-links a{color:var(--text-muted);font-size:0.875rem;font-weight:500;transition:all 0.15s ease}.footer-col-links a:hover{color:var(--primary);text-decoration:underline}.footer-bottom{padding-top:1.5rem;border-top:1px solid rgba(216,33,72,0.1);font-size:0.825rem;color:var(--text-light);text-align:center}.nav-actions{display:flex;align-items:center;gap:1.25rem}.desktop-nav{display:block}.btn-hamburger{display:none;background:transparent;border:none;outline:none;color:var(--text-main);width:44px;height:44px;border-radius:var(--radius-sm);align-items:center;justify-content:center;cursor:pointer;padding:0;transition:background 0.15s ease,transform 0.1s ease;-webkit-tap-highlight-color:transparent}.btn-hamburger:hover{background:rgba(0,0,0,0.05)}.btn-hamburger:active{transform:scale(0.92)}.btn-hamburger svg{stroke:var(--text-main)}.drawer-overlay{position:fixed;inset:0;background:rgba(15,23,42,0.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:998;opacity:0;visibility:hidden;transition:all 0.25s ease}.drawer-overlay.active{opacity:1;visibility:visible}.side-drawer{position:fixed;top:0;right:0;width:320px;max-width:85%;height:100%;background:#ffffff;z-index:999;transform:translateX(100%);transition:transform 0.3s cubic-bezier(0.16,1,0.3,1);box-shadow:-4px 0 25px rgba(0,0,0,0.12);display:flex;flex-direction:column}.side-drawer.active{transform:translateX(0)}.drawer-header{padding:1.25rem 1.5rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:0.5rem;font-weight:700;font-size:1.15rem;color:var(--primary)}.btn-drawer-close{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:0.35rem;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all 0.15s ease}.btn-drawer-close:hover{color:var(--text-main);background:var(--bg-input)}.drawer-body{padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1.5rem}.drawer-section-title{display:block;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-light);margin-bottom:0.65rem}.drawer-links{list-style:none;display:flex;flex-direction:column;gap:0.45rem}.drawer-links a{display:block;padding:0.55rem 0.75rem;border-radius:var(--radius-sm);color:var(--text-main);font-weight:600;font-size:0.95rem;transition:all 0.15s ease}.drawer-links a:hover{background:var(--primary-soft);color:var(--primary)}.toast-msg{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:#0f172a;color:#ffffff;padding:0.75rem 1.5rem;border-radius:var(--radius-full);font-size:0.9rem;font-weight:600;box-shadow:var(--shadow-lg);z-index:999;opacity:0;transition:all 0.3s cubic-bezier(0.16,1,0.3,1);pointer-events:none}.toast-msg.show{transform:translateX(-50%) translateY(0);opacity:1}@media (max-width:768px){.desktop-nav{display:none !important}.btn-hamburger{display:flex !important}.nav-wrap{height:3.8rem;padding:0 1.25rem;flex-direction:row;justify-content:space-between;align-items:center}.brand-logo{font-size:1.3rem}.sub-resolutions-grid{grid-template-columns:1fr;gap:1.25rem}.card-body{flex-direction:column;align-items:flex-start;gap:0.85rem}.card-actions{width:100%;justify-content:flex-start}.card-actions button{flex:1;justify-content:center}}@media (max-width:640px){.hero-section{padding:2.5rem 0 2rem;margin-bottom:2rem}.hero-title{font-size:1.75rem;line-height:1.3}.input-box-wrapper{display:grid;grid-template-columns:1fr auto auto;align-items:center;border-radius:16px;padding:0.5rem 0.65rem;gap:0.35rem;background:#ffffff;box-shadow:0 4px 18px rgba(0,0,0,0.07)}.url-input{grid-column:1 / 2;padding:0.5rem 0.25rem;font-size:0.95rem}.btn-grab{grid-column:1 / -1;width:100%;justify-content:center;padding:0.85rem;border-radius:12px;margin-top:0.35rem;font-size:1rem}}