:root{--bg:#0d0d16;--bg-soft:#14142a;--card:#1a1a2e;--card-hover:#20203a;--text:#e8e8f0;--text-dim:#a0a0b8;--accent:#ff4d6d;--accent2:#7b5cff;--accent3:#00d4ff;--border:rgba(255,255,255,.08);--glass:rgba(26,26,46,.6);--shadow:0 8px 32px rgba(0,0,0,.4);--radius:18px;--radius-sm:12px;--maxw:1180px}
@media(prefers-color-scheme:light){:root{--bg:#f4f5fb;--bg-soft:#ffffff;--card:#ffffff;--card-hover:#f0f1f8;--text:#1a1a2e;--text-dim:#5a5a72;--border:rgba(26,26,46,.1);--glass:rgba(255,255,255,.65);--shadow:0 8px 32px rgba(26,26,46,.1)}}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-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;overflow-x:hidden;transition:background .3s,color .3s}
body::before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 15% 15%,rgba(123,92,255,.18),transparent 45%),radial-gradient(circle at 85% 25%,rgba(255,77,109,.15),transparent 45%),radial-gradient(circle at 50% 90%,rgba(0,212,255,.12),transparent 50%);pointer-events:none}
a{color:var(--accent3);text-decoration:none;transition:color .25s}
a:hover{color:var(--accent)}
img,svg{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
header{position:sticky;top:0;z-index:100;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem clamp(1rem,4vw,2.5rem);background:var(--glass);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--border);box-shadow:0 4px 24px rgba(0,0,0,.12)}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.15rem;letter-spacing:.5px;background:linear-gradient(120deg,var(--accent),var(--accent2),var(--accent3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap}
.brand svg{flex-shrink:0;transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
.brand:hover svg{transform:rotate(-12deg) scale(1.08)}
header nav ul{display:flex;flex-wrap:wrap;gap:.25rem}
header nav a{display:inline-block;padding:.4rem .75rem;border-radius:999px;color:var(--text-dim);font-size:.9rem;font-weight:500;transition:background .25s,color .25s,transform .25s}
header nav a:hover{color:var(--text);background:rgba(123,92,255,.18);transform:translateY(-2px)}
main{max-width:var(--maxw);margin:0 auto;padding:clamp(1rem,3vw,2rem) clamp(1rem,4vw,2rem) 4rem}
main>nav[aria-label="面包屑"]{margin-bottom:1.25rem;font-size:.85rem;color:var(--text-dim)}
main>nav[aria-label="面包屑"] ol{display:flex;gap:.5rem}
main>nav[aria-label="面包屑"] li+li::before{content:"/";margin-right:.5rem;opacity:.5}
section{margin-bottom:clamp(2rem,5vw,3.5rem);scroll-margin-top:90px;animation:fadeUp .7s ease both}
section:nth-child(odd){animation-delay:.05s}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
#intro{position:relative;padding:clamp(1.75rem,5vw,3.5rem);border-radius:calc(var(--radius) + 6px);background:linear-gradient(135deg,rgba(123,92,255,.22),rgba(255,77,109,.18) 55%,rgba(0,212,255,.18));border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow)}
#intro::after{content:"";position:absolute;top:-40%;right:-15%;width:420px;height:420px;background:radial-gradient(circle,rgba(255,77,109,.35),transparent 65%);filter:blur(30px);pointer-events:none}
#intro h1{font-size:clamp(1.6rem,4.5vw,2.6rem);line-height:1.3;font-weight:900;letter-spacing:.5px;margin-bottom:1.25rem;background:linear-gradient(120deg,#fff,var(--accent3) 60%,var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;position:relative;z-index:1}
#intro p{color:var(--text-dim);margin-bottom:1rem;position:relative;z-index:1;font-size:clamp(.95rem,2vw,1.05rem)}
#intro p:last-child{margin-bottom:0}
h2{font-size:clamp(1.3rem,3vw,1.85rem);font-weight:800;margin-bottom:1.25rem;padding-bottom:.6rem;position:relative;letter-spacing:.3px}
h2::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--accent),var(--accent2),var(--accent3))}
h3{font-size:clamp(1.05rem,2.2vw,1.25rem);font-weight:700;margin:1.5rem 0 .6rem;color:var(--text)}
h3:first-child{margin-top:0}
p{color:var(--text-dim);margin-bottom:.9rem}
#about,#products,#solutions,#cases,#news,#articles,#faq,#howto,#contact,#sitemap,#links,#privacy,#disclaimer,#copyright{padding:clamp(1.25rem,3.5vw,2.25rem);background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 2px 16px rgba(0,0,0,.06);transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease,background .35s ease}
#about:hover,#products:hover,#solutions:hover,#cases:hover,#news:hover,#articles:hover,#faq:hover,#howto:hover,#contact:hover,#sitemap:hover,#links:hover,#privacy:hover,#disclaimer:hover,#copyright:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(123,92,255,.35)}
#news ul{padding-left:0}
#news li{padding:.7rem 0 .7rem 1.6rem;position:relative;color:var(--text-dim);border-bottom:1px dashed var(--border);transition:color .25s,padding-left .25s}
#news li:last-child{border-bottom:none}
#news li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 0 10px rgba(255,77,109,.6)}
#news li:hover{color:var(--text);padding-left:2rem}
#articles{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem;background:transparent;border:none;box-shadow:none;padding:0}
#articles:hover{transform:none;box-shadow:none;border-color:transparent}
#articles>h2{grid-column:1/-1}
#articles article{padding:1.4rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);position:relative;overflow:hidden;transition:transform .35s cubic-bezier(.34,1.56,.64,1),box-shadow .35s,border-color .35s}
#articles article::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(123,92,255,.12),rgba(0,212,255,.08));opacity:0;transition:opacity .35s}
#articles article:hover{transform:translateY(-6px) scale(1.01);box-shadow:var(--shadow);border-color:rgba(0,212,255,.4)}
#articles article:hover::before{opacity:1}
#articles article>*{position:relative;z-index:1}
#articles article h3{font-size:1.05rem;margin:0 0 .5rem;line-height:1.45}
#articles article p{font-size:.88rem;margin-bottom:.6rem}
#articles article p:nth-of-type(1){color:var(--accent3);font-size:.8rem;font-weight:600;letter-spacing:.3px}
#articles article a{display:inline-block;margin-top:.4rem;font-size:.88rem;font-weight:600;padding:.35rem .9rem;border-radius:999px;background:rgba(123,92,255,.16);border:1px solid rgba(123,92,255,.35);transition:background .25s,transform .25s,box-shadow .25s}
#articles article a:hover{background:linear-gradient(120deg,var(--accent2),var(--accent));color:#fff;transform:translateX(4px);box-shadow:0 4px 16px rgba(123,92,255,.4)}
#faq details{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:.7rem;background:var(--bg-soft);overflow:hidden;transition:border-color .3s,box-shadow .3s}
#faq details[open]{border-color:rgba(0,212,255,.4);box-shadow:0 4px 20px rgba(0,212,255,.1)}
#faq summary{cursor:pointer;padding:.9rem 2.6rem .9rem 1.1rem;font-weight:600;font-size:.95rem;position:relative;list-style:none;transition:color .25s,background .25s}
#faq summary::-webkit-details-marker{display:none}
#faq summary::after{content:"+";position:absolute;right:1.1rem;top:50%;transform:translateY(-50%);font-size:1.3rem;font-weight:400;color:var(--accent3);transition:transform .3s}
#faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--accent)}
#faq summary:hover{color:var(--accent3);background:rgba(0,212,255,.06)}
#faq details p{padding:0 1.1rem 1rem;font-size:.92rem;margin:0;animation:fadeUp .4s ease}
#howto ol{counter-reset:step;padding-left:0;margin-bottom:1rem}
#howto ol li{counter-increment:step;position:relative;padding:.6rem 0 .6rem 2.6rem;color:var(--text-dim)}
#howto ol li::before{content:counter(step);position:absolute;left:0;top:.55rem;width:1.8rem;height:1.8rem;display:grid;place-items:center;border-radius:50%;font-size:.8rem;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--accent2),var(--accent))}
#contact p{padding:.55rem 0 .55rem 1.8rem;position:relative;border-bottom:1px dashed var(--border);margin:0}
#contact p:last-child{border-bottom:none}
#contact p::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:3px;background:linear-gradient(135deg,var(--accent3),var(--accent2));transform:translateY(-50%) rotate(45deg)}
#sitemap ul,#links ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.5rem}
#sitemap a,#links a{display:block;padding:.5rem .8rem;border-radius:10px;background:var(--bg-soft);border:1px solid var(--border);font-size:.9rem;color:var(--text-dim);transition:all .25s}
#sitemap a:hover,#links a:hover{color:#fff;background:linear-gradient(120deg,var(--accent2),var(--accent));border-color:transparent;transform:translateX(4px);box-shadow:0 4px 14px rgba(255,77,109,.3)}
#copyright p:last-child{font-size:.85rem;color:var(--text-dim);opacity:.8}
footer{text-align:center;padding:2.5rem 1rem;border-top:1px solid var(--border);background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--text-dim);font-size:.88rem}
footer p{margin-bottom:.4rem;color:var(--text-dim)}
footer p:first-child{font-weight:700;background:linear-gradient(120deg,var(--accent),var(--accent2),var(--accent3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
::selection{background:rgba(123,92,255,.45);color:#fff}
@media(max-width:820px){
header{flex-direction:column;align-items:flex-start;gap:.6rem;padding:.8rem 1rem}
header nav{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
header nav::-webkit-scrollbar{display:none}
header nav ul{flex-wrap:nowrap;gap:.15rem;padding-bottom:.2rem}
header nav a{white-space:nowrap;font-size:.82rem;padding:.35rem .65rem}
#articles{grid-template-columns:1fr}
#sitemap ul,#links ul{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
}
@media(max-width:480px){
body{font-size:15px}
#intro{padding:1.4rem}
#faq summary{font-size:.9rem;padding:.8rem 2.4rem .8rem .9rem}
#contact p{padding-left:1.5rem;font-size:.9rem}
}
@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{
header,footer,#sitemap,#links{display:none}
body{background:#fff;color:#000}
section{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
}