:root{--primary:#6D28D9;--primary-light:#8B5CF6;--primary-dark:#4C1D95;--accent:#EC4899;--accent-light:#F472B6;--bg:#F8F7FF;--bg-alt:#FFFFFF;--text:#1F2937;--text-secondary:#6B7280;--border:#E5E7EB;--card-bg:rgba(255,255,255,.7);--card-border:rgba(255,255,255,.5);--glass-bg:rgba(255,255,255,.25);--glass-border:rgba(255,255,255,.35);--shadow:0 4px 24px rgba(109,40,217,.08);--shadow-hover:0 12px 40px rgba(109,40,217,.18);--radius:16px;--radius-sm:10px;--radius-lg:24px;--transition:.3s cubic-bezier(.4,0,.2,1);--header-height:64px;--max-width:1200px}
[data-theme="dark"]{--primary:#8B5CF6;--primary-light:#A78BFA;--primary-dark:#6D28D9;--accent:#F472B6;--accent-light:#F9A8D4;--bg:#0F0A1A;--bg-alt:#1A1128;--text:#F3F0FF;--text-secondary:#A89EC0;--border:#2D2245;--card-bg:rgba(26,17,40,.7);--card-border:rgba(45,34,69,.6);--glass-bg:rgba(26,17,40,.45);--glass-border:rgba(139,92,246,.2);--shadow:0 4px 24px rgba(0,0,0,.3);--shadow-hover:0 12px 40px rgba(139,92,246,.25)}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-height);-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;transition:background var(--transition),color var(--transition);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
blockquote{border-left:4px solid var(--primary);padding:16px 24px;margin:16px 0;background:var(--card-bg);border-radius:0 var(--radius-sm) var(--radius-sm) 0;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);font-style:italic;color:var(--text-secondary)}
blockquote p{margin:0}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}
#site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--glass-bg);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid var(--glass-border);transition:background var(--transition),box-shadow var(--transition)}
#site-header.scrolled{box-shadow:0 2px 20px rgba(109,40,217,.1)}
#site-header nav{max-width:var(--max-width);margin:0 auto;padding:0 20px;display:flex;align-items:center;height:var(--header-height);gap:16px}
.logo{font-size:1.4rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap;letter-spacing:-.5px;flex-shrink:0}
#site-header nav>ul{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
#site-header nav>ul::-webkit-scrollbar{display:none}
#site-header nav>ul li a{display:block;padding:6px 12px;font-size:.85rem;font-weight:500;color:var(--text-secondary);border-radius:8px;white-space:nowrap;transition:all var(--transition)}
#site-header nav>ul li a:hover{color:var(--primary);background:rgba(109,40,217,.08)}
#site-header nav form{display:flex;align-items:center;gap:0;flex-shrink:0;position:relative}
#site-header nav form input[type="search"]{width:160px;padding:8px 36px 8px 14px;border:1px solid var(--border);border-radius:20px;background:var(--bg-alt);color:var(--text);font-size:.85rem;outline:none;transition:all var(--transition)}
#site-header nav form input[type="search"]:focus{width:220px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(109,40,217,.15)}
#site-header nav form input[type="search"]::placeholder{color:var(--text-secondary)}
#site-header nav form button{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:.8rem;color:var(--primary);padding:4px 8px;border-radius:12px;transition:background var(--transition)}
#site-header nav form button:hover{background:rgba(109,40,217,.1)}
#theme-toggle,#menu-toggle{background:var(--card-bg);border:1px solid var(--border);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1rem;transition:all var(--transition);flex-shrink:0;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
#theme-toggle:hover,#menu-toggle:hover{background:var(--primary);border-color:var(--primary);transform:scale(1.1)}
#menu-toggle{display:none}
main{max-width:var(--max-width);margin:0 auto;padding:0 20px;padding-top:calc(var(--header-height) + 20px)}
main>section{margin-bottom:48px;animation:fadeInUp .6s ease-out both}
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
main>section:nth-child(1){animation-delay:.05s}
main>section:nth-child(2){animation-delay:.1s}
main>section:nth-child(3){animation-delay:.15s}
main>section:nth-child(4){animation-delay:.2s}
main>section:nth-child(5){animation-delay:.25s}
main>section:nth-child(6){animation-delay:.3s}
main>section:nth-child(7){animation-delay:.35s}
main>section:nth-child(8){animation-delay:.4s}
main>section:nth-child(9){animation-delay:.45s}
main>section:nth-child(10){animation-delay:.5s}
main>section:nth-child(11){animation-delay:.55s}
main>section:nth-child(12){animation-delay:.6s}
main>section:nth-child(13){animation-delay:.65s}
#home{position:relative;background:linear-gradient(135deg,#6D28D9 0%,#8B5CF6 30%,#EC4899 70%,#F472B6 100%);border-radius:var(--radius-lg);padding:60px 48px;color:#fff;overflow:hidden;box-shadow:0 20px 60px rgba(109,40,217,.3)}
#home::before{content:"";position:absolute;top:-50%;right:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,255,255,.2) 0%,transparent 70%);border-radius:50%;pointer-events:none}
#home::after{content:"";position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,.15) 0%,transparent 70%);border-radius:50%;pointer-events:none}
#home h1{font-size:2.4rem;font-weight:800;line-height:1.3;margin-bottom:24px;position:relative;z-index:1;text-shadow:0 2px 20px rgba(0,0,0,.15);letter-spacing:-.5px}
#home p{font-size:1.05rem;line-height:1.9;margin-bottom:16px;position:relative;z-index:1;opacity:.95;max-width:800px}
#home p:last-child{margin-bottom:0}
#brand{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition),transform var(--transition)}
#brand:hover{box-shadow:var(--shadow-hover)}
#brand h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#brand h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#brand h3{font-size:1.15rem;font-weight:600;color:var(--primary);margin:24px 0 10px;padding-left:14px;border-left:3px solid var(--accent)}
#brand p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
#products{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#products:hover{box-shadow:var(--shadow-hover)}
#products h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#products h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#products h3{font-size:1.15rem;font-weight:600;color:var(--primary);margin:24px 0 10px;padding-left:14px;border-left:3px solid var(--accent)}
#products p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
#products ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;margin-top:16px}
#products ul li{background:linear-gradient(135deg,rgba(109,40,217,.06),rgba(236,72,153,.06));border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;font-size:.95rem;color:var(--text);transition:all var(--transition);position:relative;overflow:hidden}
#products ul li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--primary),var(--accent));border-radius:0 2px 2px 0;transition:width var(--transition)}
#products ul li:hover{transform:translateX(6px);box-shadow:0 4px 16px rgba(109,40,217,.12);border-color:var(--primary-light)}
#products ul li:hover::before{width:5px}
#solutions{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#solutions:hover{box-shadow:var(--shadow-hover)}
#solutions h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#solutions h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#solutions h3{font-size:1.15rem;font-weight:600;color:var(--primary);margin:24px 0 10px;padding-left:14px;border-left:3px solid var(--accent)}
#solutions p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
#cases{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#cases:hover{box-shadow:var(--shadow-hover)}
#cases h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#cases h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#cases h3{font-size:1.15rem;font-weight:600;color:var(--primary);margin:24px 0 10px;padding-left:14px;border-left:3px solid var(--accent)}
#cases p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
#cases blockquote{background:linear-gradient(135deg,rgba(109,40,217,.06),rgba(236,72,153,.06));border-left-color:var(--accent);position:relative}
#cases blockquote::before{content:"\201C";position:absolute;top:-10px;left:12px;font-size:3rem;color:var(--primary-light);opacity:.3;font-family:Georgia,serif;line-height:1}
#news{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#news:hover{box-shadow:var(--shadow-hover)}
#news h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#news h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#news h3{font-size:1.15rem;font-weight:600;color:var(--primary);margin:24px 0 6px;padding-left:14px;border-left:3px solid var(--accent);cursor:pointer;transition:color var(--transition)}
#news h3:hover{color:var(--accent)}
#news p{color:var(--text-secondary);line-height:1.9;margin-bottom:4px}
#news p:first-of-type{font-size:.85rem;color:var(--primary-light);font-weight:500}
#articles{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#articles:hover{box-shadow:var(--shadow-hover)}
#articles h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#articles h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#articles article{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);padding:24px 28px;margin-bottom:16px;transition:all var(--transition);position:relative;overflow:hidden}
#articles article::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform var(--transition)}
#articles article:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary-light)}
#articles article:hover::before{transform:scaleX(1)}
#articles article h3{font-size:1.1rem;font-weight:600;color:var(--text);margin-bottom:8px;transition:color var(--transition)}
#articles article:hover h3{color:var(--primary)}
#articles article p{color:var(--text-secondary);line-height:1.85;margin-bottom:8px;font-size:.95rem}
#articles article p:first-of-type{font-size:.82rem;color:var(--primary-light);font-weight:500}
#articles article a{display:inline-flex;align-items:center;gap:6px;font-size:.9rem;font-weight:600;color:var(--primary);padding:6px 16px;border:1.5px solid var(--primary);border-radius:20px;transition:all var(--transition)}
#articles article a::after{content:"→";transition:transform var(--transition)}
#articles article a:hover{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(109,40,217,.3)}
#articles article a:hover::after{transform:translateX(4px)}
#faq{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#faq:hover{box-shadow:var(--shadow-hover)}
#faq h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#faq h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#faq h3{font-size:1rem;font-weight:600;color:var(--text);margin:20px 0 6px;padding:14px 18px;background:linear-gradient(135deg,rgba(109,40,217,.05),rgba(236,72,153,.05));border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);position:relative;padding-right:40px}
#faq h3::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.2rem;font-weight:300;color:var(--primary);transition:transform var(--transition)}
#faq h3:hover{border-color:var(--primary-light);box-shadow:0 2px 12px rgba(109,40,217,.1)}
#faq h3:hover::after{transform:translateY(-50%) rotate(90deg)}
#faq p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px;padding:0 4px;font-size:.95rem}
#howto{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#howto:hover{box-shadow:var(--shadow-hover)}
#howto h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#howto h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#howto h3{font-size:1.1rem;font-weight:600;color:var(--primary);margin:24px 0 10px;padding-left:14px;border-left:3px solid var(--accent)}
#howto p{color:var(--text-secondary);line-height:1.9;margin-bottom:8px}
#howto ul{margin:8px 0 16px;padding-left:4px}
#howto ul li{position:relative;padding:8px 0 8px 28px;color:var(--text-secondary);line-height:1.8;border-bottom:1px dashed var(--border);transition:color var(--transition)}
#howto ul li:last-child{border-bottom:none}
#howto ul li::before{content:"";position:absolute;left:6px;top:16px;width:8px;height:8px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:50%}
#howto ul li:hover{color:var(--text)}
#howto ol{counter-reset:step;margin:8px 0 16px;padding-left:0}
#howto ol li{counter-increment:step;position:relative;padding:14px 16px 14px 56px;margin-bottom:10px;background:linear-gradient(135deg,rgba(109,40,217,.04),rgba(236,72,153,.04));border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);line-height:1.8;transition:all var(--transition)}
#howto ol li::before{content:counter(step);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:28px;height:28px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}
#howto ol li:hover{transform:translateX(6px);box-shadow:0 4px 16px rgba(109,40,217,.12);border-color:var(--primary-light)}
#contact{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#contact:hover{box-shadow:var(--shadow-hover)}
#contact h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#contact h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#contact p{color:var(--text-secondary);line-height:2;margin-bottom:4px;padding-left:8px;border-left:2px solid transparent;transition:all var(--transition)}
#contact p:hover{border-left-color:var(--primary);padding-left:14px;color:var(--text)}
#sitemap{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#sitemap:hover{box-shadow:var(--shadow-hover)}
#sitemap h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#sitemap h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#sitemap ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}
#sitemap ul li a{display:block;padding:10px 16px;background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;color:var(--text-secondary);transition:all var(--transition);text-align:center}
#sitemap ul li a:hover{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:0 6px 20px rgba(109,40,217,.3)}
#links{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow);transition:box-shadow var(--transition)}
#links:hover{box-shadow:var(--shadow-hover)}
#links h2{font-size:1.8rem;font-weight:700;margin-bottom:24px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;padding-bottom:12px}
#links h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
#links ul{display:flex;flex-wrap:wrap;gap:12px}
#links ul li a{display:inline-block;padding:10px 24px;background:var(--bg-alt);border:1px solid var(--border);border-radius:24px;font-size:.9rem;color:var(--text-secondary);transition:all var(--transition)}
#links ul li a:hover{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:0 6px 20px rgba(109,40,217,.3)}
footer{background:linear-gradient(135deg,var(--primary-dark),var(--primary),var(--accent));color:rgba(255,255,255,.9);padding:48px 20px;margin-top:48px;text-align:center;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:-50%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);border-radius:50%;pointer-events:none}
footer p{margin-bottom:8px;font-size:.9rem;line-height:1.8;position:relative;z-index:1;opacity:.9}
footer p:last-child{margin-bottom:0;font-size:.8rem;opacity:.7}
footer a{color:#fff;text-decoration:underline;text-underline-offset:3px;transition:opacity var(--transition)}
footer a:hover{opacity:.8;color:#fff}
#back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:none;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 24px rgba(109,40,217,.4);opacity:0;visibility:hidden;transform:translateY(20px);transition:all var(--transition);z-index:999}
#back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
#back-to-top:hover{transform:translateY(-4px) scale(1.08);box-shadow:0 10px 32px rgba(109,40,217,.5)}
@media(max-width:1024px){
#site-header nav>ul li a{padding:6px 8px;font-size:.8rem}
#site-header nav form input[type="search"]{width:120px}
#site-header nav form input[type="search"]:focus{width:160px}
#home{padding:48px 32px}
#home h1{font-size:2rem}
}
@media(max-width:768px){
#menu-toggle{display:flex}
#site-header nav{flex-wrap:wrap;height:auto;padding:12px 16px;gap:8px}
#site-header nav>ul{display:none;order:10;width:100%;flex-direction:column;gap:2px;padding:8px 0;border-top:1px solid var(--glass-border);margin-top:8px}
#site-header nav>ul.open{display:flex}
#site-header nav>ul li a{padding:10px 16px;font-size:.9rem;border-radius:var(--radius-sm)}
#site-header nav form{order:5;flex:1}
#site-header nav form input[type="search"]{width:100%}
#site-header nav form input[type="search"]:focus{width:100%}
#home{padding:36px 24px;border-radius:var(--radius)}
#home h1{font-size:1.6rem}
#home p{font-size:.95rem}
#brand,#products,#solutions,#cases,#news,#articles,#faq,#howto,#contact,#sitemap,#links{padding:28px 20px;border-radius:var(--radius)}
#brand h2,#products h2,#solutions h2,#cases h2,#news h2,#articles h2,#faq h2,#howto h2,#contact h2,#sitemap h2,#links h2{font-size:1.4rem}
#products ul{grid-template-columns:1fr}
#articles article{padding:18px 20px}
#articles article h3{font-size:1rem}
#sitemap ul{grid-template-columns:repeat(2,1fr)}
#links ul{flex-direction:column}
#links ul li a{text-align:center}
#back-to-top{bottom:20px;right:20px;width:42px;height:42px;font-size:1rem}
footer{padding:32px 16px}
}
@media(max-width:480px){
#home{padding:28px 18px}
#home h1{font-size:1.35rem}
#home p{font-size:.88rem}
#brand,#products,#solutions,#cases,#news,#articles,#faq,#howto,#contact,#sitemap,#links{padding:22px 16px}
#brand h2,#products h2,#solutions h2,#cases h2,#news h2,#articles h2,#faq h2,#howto h2,#contact h2,#sitemap h2,#links h2{font-size:1.25rem}
#faq h3{font-size:.9rem;padding:12px 14px;padding-right:36px}
#howto ol li{padding:12px 12px 12px 48px;font-size:.9rem}
#howto ol li::before{width:24px;height:24px;font-size:.7rem;left:12px}
#sitemap ul{grid-template-columns:1fr}
}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
#home h1{background-size:200% auto;animation:shimmer 6s linear infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.logo{animation:float 4s ease-in-out infinite}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}
@media print{
#site-header,#back-to-top,footer{display:none}
body{background:#fff;color:#000}
main>section{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
}