:root{--primary:#6C3FC5;--primary-light:#9B5DE5;--primary-dark:#4a2a8a;--bg:#f7f5fc;--bg-alt:#ffffff;--text:#2d2d3a;--text-secondary:#555;--text-muted:#888;--text-faint:#999;--border:#e2ddf0;--card-bg:#ffffff;--card-shadow:0 2px 14px rgba(108,63,197,.08);--card-shadow-hover:0 12px 36px rgba(108,63,197,.18);--header-bg:rgba(255,255,255,.96);--footer-bg:#1e1b2e;--footer-text:#c9c5d8;--glass-bg:rgba(255,255,255,.72);--glass-border:rgba(255,255,255,.35);--radius-sm:10px;--radius:12px;--radius-lg:14px;--radius-xl:20px;--transition:.3s cubic-bezier(.4,0,.2,1)}
@media(prefers-color-scheme:dark){:root{--primary:#a78bfa;--primary-light:#c4b5fd;--primary-dark:#8b5cf6;--bg:#0f0d1a;--bg-alt:#1a1728;--text:#e8e4f0;--text-secondary:#b8b2c8;--text-muted:#8a849a;--text-faint:#6b6580;--border:#2d2842;--card-bg:#1a1728;--card-shadow:0 2px 14px rgba(0,0,0,.3);--card-shadow-hover:0 12px 36px rgba(167,139,250,.25);--header-bg:rgba(15,13,26,.92);--footer-bg:#0a0812;--footer-text:#a8a2b8;--glass-bg:rgba(26,23,40,.75);--glass-border:rgba(167,139,250,.15)}}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.8;overflow-x:hidden;transition:background .4s ease,color .4s ease}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}
.site-header{position:sticky;top:0;z-index:1000;background:var(--header-bg);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);box-shadow:0 2px 12px rgba(108,63,197,.08);border-bottom:1px solid var(--glass-border);transition:background .4s ease,box-shadow .4s ease}
.header-inner{max-width:1200px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--primary);transition:transform var(--transition),opacity var(--transition)}
.logo:hover{transform:scale(1.03);opacity:.9}
.logo svg{width:36px;height:36px;flex-shrink:0;filter:drop-shadow(0 2px 6px rgba(108,63,197,.3))}
.main-nav ul{display:flex;gap:22px;list-style:none}
.main-nav a{font-size:15px;color:var(--text-secondary);font-weight:500;position:relative;padding:4px 0;transition:color var(--transition)}
.main-nav a::after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:2px;transition:width var(--transition)}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{width:100%}
.search-box{display:flex;align-items:center;border:1px solid var(--border);border-radius:20px;overflow:hidden;background:var(--glass-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color var(--transition),box-shadow var(--transition)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(108,63,197,.12)}
.search-box input{border:0;outline:0;padding:6px 12px;font-size:14px;width:160px;background:transparent;color:var(--text)}
.search-box input::placeholder{color:var(--text-faint)}
.search-box button{border:0;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:6px 14px;cursor:pointer;font-size:14px;transition:opacity var(--transition),transform var(--transition)}
.search-box button:hover{opacity:.88}
.search-box button:active{transform:scale(.96)}
.menu-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--primary);padding:4px 8px;border-radius:8px;transition:background var(--transition)}
.menu-toggle:hover{background:rgba(108,63,197,.08)}
.breadcrumb{max-width:1200px;margin:16px auto 0;padding:0 20px;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{text-decoration:underline}
.hero{background:linear-gradient(135deg,#6C3FC5 0%,#9B5DE5 50%,#c084fc 100%);background-size:200% 200%;animation:heroGradient 8s ease infinite;color:#fff;padding:60px 20px 70px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 40%,rgba(255,255,255,.12) 0%,transparent 50%),radial-gradient(circle at 70% 60%,rgba(255,255,255,.08) 0%,transparent 45%);animation:heroShine 12s linear infinite;pointer-events:none}
@keyframes heroGradient{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes heroShine{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}
.hero h1{font-size:34px;margin-bottom:18px;line-height:1.4;position:relative;z-index:1;text-shadow:0 2px 12px rgba(0,0,0,.15);animation:fadeInUp .8s ease both}
.hero p{max-width:820px;margin:0 auto 24px;font-size:16px;opacity:.95;position:relative;z-index:1;animation:fadeInUp .8s .15s ease both}
.hero-stats{display:flex;justify-content:center;gap:48px;flex-wrap:wrap;margin-top:30px;position:relative;z-index:1;animation:fadeInUp .8s .3s ease both}
.hero-stats .stat{text-align:center;transition:transform var(--transition)}
.hero-stats .stat:hover{transform:translateY(-4px)}
.hero-stats .num{font-size:32px;font-weight:700;display:block;text-shadow:0 2px 8px rgba(0,0,0,.2)}
.hero-stats .label{font-size:13px;opacity:.85}
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.carousel{max-width:1200px;margin:30px auto;padding:0 20px}
.carousel-track{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 4px 20px rgba(108,63,197,.12);border:1px solid var(--glass-border);transition:box-shadow var(--transition)}
.carousel-track:hover{box-shadow:0 8px 32px rgba(108,63,197,.2)}
.slide{display:none;padding:38px 40px;animation:slideIn .5s ease both}
.slide.active{display:block}
@keyframes slideIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:translateX(0)}}
.slide h3{color:var(--primary);font-size:22px;margin-bottom:10px}
.slide p{color:var(--text-secondary);font-size:15px}
.carousel-dots{text-align:center;margin-top:14px}
.carousel-dots span{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--border);margin:0 5px;cursor:pointer;transition:all var(--transition)}
.carousel-dots span:hover{background:var(--primary-light);transform:scale(1.2)}
.carousel-dots span.active{background:var(--primary);width:28px;border-radius:5px}
.section{max-width:1200px;margin:0 auto;padding:50px 20px}
.section-title{font-size:26px;color:var(--text);margin-bottom:8px;text-align:center;position:relative;display:inline-block;left:50%;transform:translateX(-50%)}
.section-title::after{content:"";display:block;width:48px;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:3px;margin:10px auto 0}
.section-sub{text-align:center;color:var(--text-muted);font-size:14px;margin-bottom:36px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.card{background:var(--card-bg);border-radius:var(--radius);padding:26px;box-shadow:var(--card-shadow);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);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(--primary),var(--primary-light));transform:scaleX(0);transform-origin:left;transition:transform var(--transition)}
.card:hover{transform:translateY(-6px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,63,197,.12)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:17px;color:var(--primary);margin-bottom:10px;transition:color var(--transition)}
.card:hover h3{color:var(--primary-dark)}
.card p{font-size:14px;color:var(--text-secondary)}
.card .icon{width:42px;height:42px;margin-bottom:14px;transition:transform var(--transition)}
.card:hover .icon{transform:scale(1.1) rotate(-4deg)}
.article-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.article-item{background:var(--card-bg);border-radius:var(--radius);padding:22px;box-shadow:var(--card-shadow);transition:transform var(--transition),box-shadow var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.article-item::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--primary),var(--primary-light));transform:scaleY(0);transform-origin:top;transition:transform var(--transition)}
.article-item:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,63,197,.1)}
.article-item:hover::after{transform:scaleY(1)}
.article-item h3{font-size:16px;color:var(--text);margin-bottom:8px;transition:color var(--transition)}
.article-item:hover h3{color:var(--primary)}
.article-item .meta{font-size:12px;color:var(--text-faint);margin-bottom:10px}
.article-item p{font-size:14px;color:var(--text-secondary);margin-bottom:12px}
.article-item .read-more{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:gap var(--transition)}
.article-item .read-more:hover{gap:8px}
.faq-item{background:var(--card-bg);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;box-shadow:0 2px 10px rgba(108,63,197,.06);transition:box-shadow var(--transition),border-color var(--transition);border:1px solid transparent}
.faq-item:hover{box-shadow:0 4px 18px rgba(108,63,197,.12);border-color:rgba(108,63,197,.08)}
.faq-q{padding:16px 20px;font-size:15px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:var(--text);transition:color var(--transition),background var(--transition);user-select:none}
.faq-q:hover{color:var(--primary);background:rgba(108,63,197,.03)}
.faq-q::after{content:"+";font-size:20px;color:var(--primary);transition:transform .35s cubic-bezier(.4,0,.2,1);flex-shrink:0;margin-left:12px}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1),padding .3s ease;padding:0 20px;font-size:14px;color:var(--text-secondary)}
.faq-item.open .faq-a{max-height:600px;padding:0 20px 18px}
.howto-step{display:flex;gap:18px;margin-bottom:22px;align-items:flex-start;padding:18px;border-radius:var(--radius);background:var(--card-bg);box-shadow:var(--card-shadow);transition:transform var(--transition),box-shadow var(--transition);border:1px solid transparent}
.howto-step:hover{transform:translateX(6px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,63,197,.1)}
.howto-step .step-num{flex-shrink:0;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;box-shadow:0 3px 10px rgba(108,63,197,.3);transition:transform var(--transition)}
.howto-step:hover .step-num{transform:scale(1.1)}
.howto-step h4{font-size:16px;color:var(--text);margin-bottom:6px}
.howto-step p{font-size:14px;color:var(--text-secondary)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.contact-card{background:var(--card-bg);border-radius:var(--radius);padding:24px;box-shadow:var(--card-shadow);transition:transform var(--transition),box-shadow var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.contact-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));transform:scaleX(0);transition:transform var(--transition)}
.contact-card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,63,197,.1)}
.contact-card:hover::before{transform:scaleX(1)}
.contact-card h3{font-size:16px;color:var(--primary);margin-bottom:10px}
.contact-card p{font-size:14px;color:var(--text-secondary)}
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.team-card{background:var(--card-bg);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--card-shadow);transition:transform var(--transition),box-shadow var(--transition);border:1px solid transparent}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,63,197,.1)}
.team-card .avatar{width:64px;height:64px;border-radius:50%;margin:0 auto 12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700;box-shadow:0 4px 14px rgba(108,63,197,.3);transition:transform var(--transition),box-shadow var(--transition)}
.team-card:hover .avatar{transform:scale(1.08);box-shadow:0 6px 20px rgba(108,63,197,.45)}
.team-card h3{font-size:15px;margin-bottom:4px;color:var(--text)}
.team-card p{font-size:13px;color:var(--text-muted)}
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:50px 20px 24px;margin-top:40px;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:.4}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:2px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--footer-text);font-size:13px;transition:color var(--transition),padding-left var(--transition)}
.footer-col a:hover{color:var(--primary-light);padding-left:4px}
.footer-bottom{max-width:1200px;margin:30px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:12px;color:var(--text-faint)}
.footer-bottom p{margin-bottom:4px}
.back-to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:0;cursor:pointer;font-size:20px;display:none;z-index:900;box-shadow:0 4px 14px rgba(108,63,197,.4);transition:transform var(--transition),box-shadow var(--transition),opacity var(--transition)}
.back-to-top.show{display:block;animation:popIn .3s ease both}
.back-to-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 8px 24px rgba(108,63,197,.55)}
.back-to-top:active{transform:scale(.94)}
@keyframes popIn{from{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal:nth-child(2){transition-delay:.08s}
.reveal:nth-child(3){transition-delay:.16s}
.reveal:nth-child(4){transition-delay:.24s}
@media(max-width:768px){
.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--header-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:16px;box-shadow:0 6px 16px rgba(0,0,0,.1);border-bottom:1px solid var(--glass-border);animation:navDrop .25s ease both}
.main-nav.open{display:block}
@keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.main-nav ul{flex-direction:column;gap:14px}
.menu-toggle{display:block}
.search-box{display:none}
.hero{padding:44px 16px 54px}
.hero h1{font-size:24px}
.hero p{font-size:14px}
.hero-stats{gap:24px}
.hero-stats .num{font-size:26px}
.section{padding:36px 16px}
.section-title{font-size:22px}
.carousel{padding:0 16px}
.slide{padding:26px 22px}
.slide h3{font-size:18px}
.slide p{font-size:14px}
.card-grid{grid-template-columns:1fr;gap:16px}
.article-list{grid-template-columns:1fr;gap:16px}
.contact-grid{grid-template-columns:1fr;gap:16px}
.team-grid{grid-template-columns:repeat(2,1fr);gap:14px}
.howto-step{flex-direction:row;gap:14px;padding:14px}
.footer-inner{grid-template-columns:1fr;gap:24px}
.back-to-top{right:16px;bottom:16px;width:40px;height:40px;font-size:18px}
}
@media(max-width:480px){
.hero h1{font-size:20px}
.hero-stats{gap:16px}
.hero-stats .num{font-size:22px}
.hero-stats .label{font-size:11px}
.team-grid{grid-template-columns:1fr}
.card{padding:20px}
}
@media(min-width:769px) and (max-width:1024px){
.card-grid{grid-template-columns:repeat(2,1fr)}
.article-list{grid-template-columns:repeat(2,1fr)}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
html{scroll-behavior:auto}
.reveal{opacity:1;transform:none}
}
@media print{
.site-header,.back-to-top,.carousel-dots,.search-box,.menu-toggle{display:none!important}
body{background:#fff;color:#000}
.card,.article-item,.faq-item{box-shadow:none;border:1px solid #ddd}
}