:root{--brand:#ff6b35;--brand-2:#ff9f1c;--brand-3:#7b5cff;--bg:#fff8f3;--bg-2:#ffffff;--surface:rgba(255,255,255,.72);--surface-solid:#ffffff;--border:rgba(255,107,53,.16);--text:#2b2118;--text-2:#6b5e54;--text-3:#9a8b7e;--shadow:0 8px 28px rgba(255,107,53,.12);--shadow-lg:0 18px 48px rgba(123,92,255,.16);--radius:20px;--radius-sm:12px;--radius-lg:28px;--nav-h:64px;--maxw:1140px;--ease:cubic-bezier(.22,.75,.28,1)}
@media (prefers-color-scheme:dark){
:root{--brand:#ff7d4d;--brand-2:#ffb347;--brand-3:#9b82ff;--bg:#14100d;--bg-2:#1b1611;--surface:rgba(38,30,24,.66);--surface-solid:#221b15;--border:rgba(255,125,77,.2);--text:#f5ede6;--text-2:#c9bbae;--text-3:#8f8276;--shadow:0 8px 28px rgba(0,0,0,.42);--shadow-lg:0 18px 48px rgba(0,0,0,.55)}
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(1200px 600px at 12% -8%,rgba(255,107,53,.16),transparent 60%),radial-gradient(900px 520px at 92% 4%,rgba(123,92,255,.14),transparent 62%),radial-gradient(800px 500px at 50% 110%,rgba(255,159,28,.12),transparent 60%);pointer-events:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
a:hover{color:var(--brand-3)}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.35;font-weight:800;letter-spacing:.2px;color:var(--text)}
h1{font-size:clamp(1.75rem,4.4vw,2.9rem)}
h2{font-size:clamp(1.4rem,3vw,2rem)}
h3{font-size:clamp(1.1rem,2.1vw,1.35rem)}
h4{font-size:clamp(1rem,1.7vw,1.15rem)}
p{color:var(--text-2)}
::selection{background:rgba(255,107,53,.28);color:var(--text)}
header{position:sticky;top:0;z-index:100;background:var(--surface);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--border);box-shadow:0 4px 22px rgba(0,0,0,.05)}
nav{max-width:var(--maxw);margin:0 auto;padding:0 20px;min-height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
nav>a{display:inline-flex;align-items:center;gap:8px;font-weight:900;font-size:1.15rem;color:var(--text);letter-spacing:.5px;padding:6px 0;white-space:nowrap}
nav>a::before{content:"";width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2) 55%,var(--brand-3));box-shadow:0 4px 14px rgba(255,107,53,.4);flex:0 0 auto}
nav>a:hover{color:var(--brand)}
nav ul{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
nav ul li a{display:inline-block;padding:7px 12px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--text-2);transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease)}
nav ul li a:hover{background:rgba(255,107,53,.12);color:var(--brand);transform:translateY(-1px)}
main{max-width:var(--maxw);margin:0 auto;padding:0 20px 40px}
section{position:relative;margin:28px 0;padding:clamp(20px,4vw,40px);background:var(--surface);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);animation:fadeUp .7s var(--ease) both;transition:box-shadow .35s var(--ease),transform .35s var(--ease),border-color .35s var(--ease)}
section:hover{box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.3)}
section>h2{position:relative;padding-bottom:14px;margin-bottom:18px}
section>h2::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2),var(--brand-3));box-shadow:0 2px 10px rgba(255,107,53,.45)}
section h3{margin:22px 0 8px;color:var(--text)}
section h4{margin:16px 0 6px;color:var(--brand)}
section p{margin:8px 0;font-size:.98rem}
section ul{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
section ul li a{display:inline-block;padding:8px 16px;border-radius:999px;background:var(--surface-solid);border:1px solid var(--border);font-size:.9rem;font-weight:600;color:var(--text-2);box-shadow:0 3px 12px rgba(0,0,0,.04);transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease)}
section ul li a:hover{transform:translateY(-3px);background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px rgba(255,107,53,.35)}
#home{margin-top:28px;padding:clamp(32px,6vw,72px) clamp(22px,5vw,56px);background:linear-gradient(125deg,rgba(255,107,53,.92),rgba(255,159,28,.88) 42%,rgba(123,92,255,.9));border:none;overflow:hidden;color:#fff;border-radius:var(--radius-lg);box-shadow:0 22px 60px rgba(255,107,53,.35)}
#home::before{content:"";position:absolute;width:420px;height:420px;top:-160px;right:-120px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.35),transparent 68%);pointer-events:none;animation:float 9s ease-in-out infinite}
#home::after{content:"";position:absolute;width:300px;height:300px;bottom:-140px;left:-90px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 66%);pointer-events:none;animation:float 11s ease-in-out infinite reverse}
#home h1{position:relative;z-index:1;color:#fff;text-shadow:0 4px 22px rgba(0,0,0,.18);margin-bottom:14px}
#home p{position:relative;z-index:1;color:rgba(255,255,255,.94);font-size:clamp(.95rem,1.6vw,1.06rem);max-width:900px;text-shadow:0 2px 12px rgba(0,0,0,.12)}
#about,#products,#solutions,#cases,#news,#articles,#knowledge,#faq,#howto,#contact{animation-delay:.05s}
#products h3,#solutions h3,#cases h3,#news h3,#knowledge h3{display:inline-block;padding:4px 0 4px 14px;border-left:4px solid var(--brand);border-radius:2px}
#products h4,#solutions h4{position:relative;padding-left:22px}
#products h4::before,#solutions h4::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border-radius:3px;background:linear-gradient(135deg,var(--brand),var(--brand-3));transform:rotate(45deg)}
#news h3+p:first-of-type,#articles article p:first-of-type{display:inline-block;margin:6px 0;padding:3px 12px;border-radius:999px;background:rgba(255,107,53,.12);color:var(--brand);font-size:.82rem;font-weight:700;letter-spacing:.3px}
#news>h3{margin-top:26px;padding-bottom:12px;border-bottom:1px dashed var(--border);width:100%;display:block;border-left:none;padding-left:0}
#news>h3+p:first-of-type{background:rgba(123,92,255,.12);color:var(--brand-3)}
#articles{display:grid;grid-template-columns:1fr;gap:0}
#articles>h2{grid-column:1/-1}
#articles article{margin:10px 0;padding:20px 22px;background:var(--surface-solid);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 4px 18px rgba(0,0,0,.05);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);position:relative;overflow:hidden}
#articles article::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--brand),var(--brand-3));opacity:0;transition:opacity .3s var(--ease)}
#articles article:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.35)}
#articles article:hover::before{opacity:1}
#articles article h3{margin:0 0 6px;font-size:1.06rem;transition:color .25s var(--ease)}
#articles article:hover h3{color:var(--brand)}
#articles article p:last-child{font-size:.93rem;color:var(--text-2);margin:0}
#faq h3{margin:22px 0 6px;padding:14px 18px;background:var(--surface-solid);border:1px solid var(--border);border-radius:var(--radius-sm);border-left:4px solid var(--brand-3);font-size:1rem;transition:background .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease)}
#faq h3:hover{transform:translateX(4px);border-left-color:var(--brand);background:rgba(255,107,53,.08)}
#faq h3+p{margin:6px 0 0;padding:0 6px 10px 18px;font-size:.95rem}
#howto h4{display:inline-block;margin-top:18px;padding:5px 14px;border-radius:999px;background:linear-gradient(135deg,rgba(255,107,53,.14),rgba(123,92,255,.14));color:var(--brand);font-size:.95rem}
#howto h3{margin-top:20px;color:var(--brand-3)}
#contact h3{margin-top:20px}
#contact p{display:flex;flex-wrap:wrap;gap:6px;padding:9px 0;border-bottom:1px dashed var(--border);font-size:.95rem}
#contact p:last-child{border-bottom:none}
#sitemap ul li a,#links ul li a{background:transparent;border-color:var(--border)}
#legal h2{margin-top:26px;font-size:1.2rem}
#legal h2:first-child{margin-top:0}
#legal p{font-size:.92rem;color:var(--text-3)}
footer{max-width:var(--maxw);margin:0 auto;padding:30px 20px 50px;text-align:center;border-top:1px solid var(--border);margin-top:16px}
footer p{font-size:.86rem;color:var(--text-3);margin:4px 0}
footer p:first-child{font-weight:700;color:var(--text-2);font-size:.92rem}
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-14px,18px) scale(1.06)}}
@media (min-width:768px){
#articles{grid-template-columns:repeat(2,1fr);gap:16px}
#articles article{margin:0}
#articles>h2{margin-bottom:8px}
}
@media (min-width:1024px){
#articles{grid-template-columns:repeat(3,1fr)}
section{margin:34px 0}
}
@media (max-width:900px){
nav{justify-content:center;padding:8px 14px}
nav>a{font-size:1.05rem}
nav ul{justify-content:center;gap:2px}
nav ul li a{padding:6px 10px;font-size:.84rem}
}
@media (max-width:640px){
:root{--nav-h:auto;--radius-lg:20px;--radius:16px}
body{font-size:15px;line-height:1.7}
nav{padding:10px 14px;gap:8px}
nav ul{gap:0;width:100%}
nav ul li a{padding:6px 9px;font-size:.8rem}
main{padding:0 14px 30px}
section{margin:18px 0;padding:20px 16px;border-radius:var(--radius-lg)}
#home{margin-top:18px;padding:34px 20px}
#home h1{font-size:1.6rem}
section>h2{font-size:1.28rem}
section p{font-size:.94rem}
section ul{gap:8px}
section ul li a{padding:7px 13px;font-size:.84rem}
#articles article{padding:16px}
footer{padding:24px 16px 40px}
}
@media (max-width:380px){
nav ul li a{padding:5px 7px;font-size:.75rem}
#home{padding:26px 16px}
}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !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;background:#fff;backdrop-filter:none;animation:none}
#home{background:#f2f2f2;color:#000}
#home h1,#home p{color:#000;text-shadow:none}
}