:root{--bg:#f9f7fc;--bg-alt:#fff;--text:#1e1a2b;--text-soft:#6b5e7a;--text-mute:#8a7a9e;--brand:#6b2fa0;--brand-deep:#4d1f75;--brand-light:#c49aff;--brand-soft:#ede7f6;--border:rgba(107,47,160,.12);--card-shadow:0 4px 20px rgba(26,11,46,.06);--card-shadow-hover:0 12px 32px rgba(107,47,160,.16);--glass:rgba(255,255,255,.72);--glass-border:rgba(255,255,255,.45);--radius-lg:24px;--radius-md:20px;--radius-sm:16px;--header-h:64px}
body.dark-mode{--bg:#0f0b1a;--bg-alt:#1a1228;--text:#e6e0f0;--text-soft:#b8aacf;--text-mute:#a99ec0;--brand:#c49aff;--brand-deep:#a06fe0;--brand-light:#d9bfff;--brand-soft:#2a1e40;--border:rgba(196,154,255,.18);--card-shadow:0 4px 20px rgba(0,0,0,.4);--card-shadow-hover:0 12px 32px rgba(196,154,255,.12);--glass:rgba(15,11,26,.72);--glass-border:rgba(196,154,255,.16)}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue','Noto Sans','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;transition:background-color .3s,color .3s;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse 80% 60% at 10% -10%,rgba(107,47,160,.10),transparent 60%),radial-gradient(ellipse 70% 50% at 100% 0%,rgba(196,154,255,.12),transparent 55%);transition:opacity .3s}
body.dark-mode::before{background:radial-gradient(ellipse 80% 60% at 10% -10%,rgba(107,47,160,.28),transparent 60%),radial-gradient(ellipse 70% 50% at 100% 0%,rgba(196,154,255,.10),transparent 55%)}
img,svg{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
input{font-family:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.site-header{position:sticky;top:0;z-index:999;background:var(--glass);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid var(--border);transition:background .3s,border-color .3s,box-shadow .3s}
.site-header::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(107,47,160,.35),transparent);opacity:.6}
.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 0;flex-wrap:wrap;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.4rem;color:var(--text);flex-shrink:0}
.brand svg{width:36px;height:36px;border-radius:10px;box-shadow:0 4px 12px rgba(107,47,160,.35);transition:transform .3s,box-shadow .3s}
.brand:hover svg{transform:rotate(-6deg) scale(1.06);box-shadow:0 6px 18px rgba(107,47,160,.5)}
.nav-links{display:flex;gap:4px 18px;flex-wrap:wrap;align-items:center}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--text-soft);padding:4px 0;position:relative;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.nav-links a::after{content:'';position:absolute;left:50%;bottom:-2px;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-light));border-radius:2px;transform:translateX(-50%);transition:width .28s ease}
.nav-links a:hover{color:var(--brand);border-bottom-color:transparent}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{display:flex;align-items:center;background:var(--brand-soft);border-radius:40px;padding:4px 8px 4px 16px;border:1px solid transparent;transition:border-color .2s,background .3s,box-shadow .2s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(107,47,160,.12)}
.search-box input{border:none;background:transparent;padding:6px 0;font-size:.9rem;outline:none;width:140px;color:inherit}
.search-box input::placeholder{color:var(--text-mute)}
.search-box button{background:linear-gradient(135deg,var(--brand),var(--brand-deep));border:none;border-radius:40px;padding:6px 16px;color:#fff;font-size:.8rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s;white-space:nowrap}
.search-box button:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(107,47,160,.45);filter:brightness(1.08)}
.search-box button:active{transform:translateY(0)}
.theme-toggle{background:transparent;border:1px solid var(--border);border-radius:40px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;transition:background .2s,border-color .2s,transform .3s;color:inherit;flex-shrink:0}
.theme-toggle:hover{background:var(--brand-soft);border-color:var(--brand);transform:rotate(20deg)}
.mobile-menu-btn{display:none;background:transparent;border:1px solid var(--border);border-radius:40px;padding:8px 16px;font-size:1rem;cursor:pointer;color:inherit;transition:background .2s,border-color .2s}
.mobile-menu-btn:hover{background:var(--brand-soft);border-color:var(--brand)}
.breadcrumb{font-size:.85rem;color:var(--text-mute);margin:16px 0 8px;display:flex;align-items:center;flex-wrap:wrap;gap:4px}
.breadcrumb a{color:inherit;text-decoration:underline;text-underline-offset:3px}
.breadcrumb a:hover{color:var(--brand)}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px 16px;padding:12px 0;font-size:.9rem;border-bottom:1px solid var(--border);margin-bottom:24px}
.anchor-nav a{color:var(--text-soft);padding:2px 0;position:relative;transition:color .2s}
.anchor-nav a::before{content:'#';color:var(--brand-light);margin-right:2px;opacity:.6;font-weight:700}
.anchor-nav a:hover{color:var(--brand)}
.banner-carousel{position:relative;overflow:hidden;border-radius:var(--radius-lg);margin:24px 0 32px;background:linear-gradient(135deg,#1a0b2e 0%,#3d1f5c 45%,#6b2fa0 100%);min-height:300px;display:flex;align-items:center;justify-content:center;color:#fff;padding:48px 24px;box-shadow:0 20px 48px -12px rgba(26,11,46,.45);isolation:isolate}
.banner-carousel::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(196,154,255,.28),transparent 45%),radial-gradient(circle at 85% 75%,rgba(107,47,160,.5),transparent 50%);pointer-events:none;z-index:0}
.banner-carousel::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent,rgba(255,255,255,.06),transparent 30%);animation:rotateGlow 18s linear infinite;pointer-events:none;z-index:0}
@keyframes rotateGlow{to{transform:rotate(360deg)}}
.banner-slide{display:none;text-align:center;position:relative;z-index:1;max-width:820px}
.banner-slide.active{display:block;animation:fadeIn .7s cubic-bezier(.22,.61,.36,1)}
@keyframes fadeIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
.banner-slide h2{font-size:2.1rem;margin-bottom:14px;font-weight:800;letter-spacing:-.02em;line-height:1.3;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.banner-slide p{font-size:1.08rem;opacity:.92;max-width:700px;margin:0 auto 16px;line-height:1.75}
.banner-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:2}
.banner-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:background .3s,width .3s,transform .3s}
.banner-dots span:hover{background:rgba(255,255,255,.7);transform:scale(1.2)}
.banner-dots span.active{background:#fff;width:28px;border-radius:6px}
.card{background:var(--bg-alt);border-radius:var(--radius-md);padding:28px 24px;box-shadow:var(--card-shadow);transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,background .3s,border-color .3s;border:1px solid transparent;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-light));transform:scaleX(0);transform-origin:left;transition:transform .35s ease;border-radius:3px 3px 0 0}
.card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:var(--border)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:12px;line-height:1.4}
.card p{color:var(--text-soft);font-size:.95rem;line-height:1.75}
.section-title{font-size:1.8rem;font-weight:800;margin-bottom:8px;letter-spacing:-.02em;line-height:1.3;position:relative;display:inline-block}
.section-title::after{content:'';display:block;width:48px;height:4px;border-radius:4px;margin-top:8px;background:linear-gradient(90deg,var(--brand),var(--brand-light))}
.section-sub{color:var(--text-soft);margin-bottom:28px;font-size:1rem;line-height:1.6}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-number{font-size:2.4rem;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.02em;background:linear-gradient(135deg,var(--brand),var(--brand-light));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:inline-block}
.faq-item{border-bottom:1px solid var(--border);padding:16px 0;transition:padding .3s}
.faq-question{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;font-weight:600;font-size:1.05rem;padding:4px 0;color:var(--text);transition:color .2s;user-select:none}
.faq-question:hover{color:var(--brand)}
.faq-question span{font-size:1.4rem;line-height:1;flex-shrink:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--brand-soft);color:var(--brand);transition:transform .35s cubic-bezier(.22,.61,.36,1),background .3s,color .3s}
.faq-item.open .faq-question span{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .45s cubic-bezier(.22,.61,.36,1),padding .3s,opacity .3s;color:var(--text-soft);font-size:.95rem;line-height:1.85;opacity:0}
.faq-item.open .faq-answer{max-height:500px;padding:12px 0 4px;opacity:1}
.back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;border:none;font-size:1.4rem;cursor:pointer;box-shadow:0 6px 20px rgba(107,47,160,.45);display:none;align-items:center;justify-content:center;z-index:1000;transition:transform .25s,box-shadow .25s,opacity .3s;line-height:1}
.back-to-top.show{display:flex;animation:popIn .3s cubic-bezier(.22,.61,.36,1)}
@keyframes popIn{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}
.back-to-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 10px 28px rgba(107,47,160,.6)}
.back-to-top:active{transform:translateY(-2px) scale(1)}
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1);will-change:opacity,transform}
.fade-up.visible{opacity:1;transform:translateY(0)}
.article-card{background:var(--bg-alt);border-radius:var(--radius-sm);padding:22px 20px;box-shadow:var(--card-shadow);transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,background .3s,border-color .3s;border:1px solid transparent;display:flex;flex-direction:column;height:100%;position:relative;overflow:hidden}
.article-card::after{content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,var(--brand),transparent 40%,var(--brand-light));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s;pointer-events:none}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--card-shadow-hover)}
.article-card:hover::after{opacity:1}
.article-meta{font-size:.8rem;color:var(--text-mute);margin-bottom:8px;letter-spacing:.02em}
.article-title{font-size:1.08rem;font-weight:700;margin-bottom:8px;line-height:1.45;color:var(--text);transition:color .2s}
.article-card:hover .article-title{color:var(--brand)}
.article-summary{font-size:.9rem;color:var(--text-soft);margin-bottom:14px;line-height:1.65;flex:1}
.read-more{font-weight:600;font-size:.9rem;color:var(--brand);margin-top:auto;display:inline-flex;align-items:center;gap:4px;transition:gap .25s,color .2s}
.article-card:hover .read-more{gap:8px;color:var(--brand-deep)}
.tag{display:inline-block;background:var(--brand-soft);color:var(--brand-deep);font-size:.75rem;font-weight:500;padding:3px 12px;border-radius:20px;margin-right:6px;margin-bottom:6px;transition:background .2s,transform .2s,color .2s;cursor:default}
body.dark-mode .tag{color:var(--brand-light)}
.tag:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.site-footer{background:linear-gradient(180deg,#1a0b2e 0%,#120720 100%);color:#d4c5f0;padding:56px 0 24px;margin-top:64px;position:relative;overflow:hidden}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(196,154,255,.5),transparent)}
.site-footer::after{content:'';position:absolute;bottom:-120px;right:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(107,47,160,.35),transparent 70%);pointer-events:none}
.site-footer a{color:#c49aff;transition:color .2s,padding-left .2s;display:inline-block}
.site-footer a:hover{color:#fff;padding-left:4px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1}
.footer-title{font-size:1rem;font-weight:700;color:#fff;margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-title::after{content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;background:linear-gradient(90deg,#c49aff,transparent);border-radius:2px}
.footer-links{list-style:none;font-size:.9rem;line-height:2.1}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem;color:#a99ec0;position:relative;z-index:1}
.info-table{width:100%;border-collapse:collapse;font-size:.9rem}
.info-table tr{transition:background .2s}
.info-table tr:hover{background:var(--brand-soft)}
.info-table td{padding:11px 12px;border-bottom:1px solid var(--border);vertical-align:top;line-height:1.65}
.info-table tr:last-child td{border-bottom:none}
.info-table td:first-child{font-weight:600;width:110px;color:var(--text);white-space:nowrap}
.lazy-img{background:var(--brand-soft);border-radius:12px;display:block;width:100%;height:auto}
#brand-intro,#history,#culture,#products,#advantages,#solutions,#applications,#cases,#reviews,#news,#articles,#faq,#howto,#contact,#footer-info{scroll-margin-top:80px}
#faqList .faq-item:last-child{border-bottom:none}
@media (max-width:1024px){
.grid-4{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr)}
.banner-slide h2{font-size:1.8rem}
}
@media (max-width:900px){
.nav-links{display:none;width:100%;flex-direction:column;align-items:flex-start;padding:12px 0;gap:2px;order:3;border-top:1px solid var(--border);margin-top:8px}
.nav-links.open{display:flex;animation:slideDown .3s cubic-bezier(.22,.61,.36,1)}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.nav-links a{padding:8px 0;width:100%;border-bottom:none}
.nav-links a::after{display:none}
.mobile-menu-btn{display:block;order:2}
.nav-actions{order:4;width:100%;justify-content:space-between}
.search-box{flex:1}
.search-box input{width:100%}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
.banner-carousel{min-height:260px;padding:36px 20px;border-radius:var(--radius-sm)}
.banner-slide h2{font-size:1.5rem}
.banner-slide p{font-size:1rem}
.anchor-nav{font-size:.85rem;gap:6px 12px}
}
@media (max-width:600px){
.container{padding:0 16px}
.section-title{font-size:1.5rem}
.banner-slide h2{font-size:1.35rem}
.banner-slide p{font-size:.95rem}
.stat-number{font-size:1.9rem}
.card{padding:22px 18px;border-radius:var(--radius-sm)}
.article-card{padding:18px 16px}
.footer-grid{grid-template-columns:1fr;gap:24px}
.footer-bottom{flex-direction:column;gap:8px;text-align:center}
.back-to-top{bottom:20px;right:20px;width:44px;height:44px;font-size:1.2rem}
.brand{font-size:1.2rem}
.brand svg{width:32px;height:32px}
.info-table td:first-child{width:88px;white-space:normal}
.faq-question{font-size:.98rem}
}
@media (max-width:380px){
.banner-slide h2{font-size:1.2rem}
.search-box button{padding:6px 12px;font-size:.75rem}
}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
.fade-up{opacity:1;transform:none}
}
@media print{
.site-header,.back-to-top,.banner-carousel,.site-footer,.anchor-nav{display:none}
body{background:#fff;color:#000}
.card,.article-card{box-shadow:none;border:1px solid #ddd}
}