:root{--brand:#6C4CF1;--brand-2:#FF4D8D;--brand-3:#00C2C7;--brand-glow:rgba(108,76,241,.28);--bg:#ffffff;--bg-soft:#f6f5ff;--bg-glass:rgba(255,255,255,.72);--text:#1c1b2e;--text-soft:#5a5872;--line:#e8e6f5;--card:#ffffff;--shadow:0 8px 30px rgba(108,76,241,.10);--shadow-lg:0 18px 50px rgba(108,76,241,.18);--radius:16px;--radius-lg:22px;--radius-sm:10px;--ease:cubic-bezier(.22,.61,.36,1)}
html[data-theme="dark"]{--bg:#12101f;--bg-soft:#1a1730;--bg-glass:rgba(18,16,31,.72);--text:#eceaf7;--text-soft:#a9a5c4;--line:#2b2745;--card:#1b1830;--shadow:0 8px 30px rgba(0,0,0,.4);--shadow-lg:0 18px 50px rgba(0,0,0,.55);--brand-glow:rgba(108,76,241,.45)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background .35s var(--ease),color .35s var(--ease);overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(60% 50% at 12% 0%,rgba(108,76,241,.10),transparent 60%),radial-gradient(50% 45% at 88% 8%,rgba(255,77,141,.10),transparent 60%),radial-gradient(45% 40% at 50% 100%,rgba(0,194,199,.08),transparent 65%)}
html[data-theme="dark"] body::before{background:radial-gradient(60% 50% at 12% 0%,rgba(108,76,241,.22),transparent 60%),radial-gradient(50% 45% at 88% 8%,rgba(255,77,141,.16),transparent 60%),radial-gradient(45% 40% at 50% 100%,rgba(0,194,199,.12),transparent 65%)}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand-2)}
img,svg{max-width:100%;display:block}
::selection{background:rgba(108,76,241,.22)}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:20px;top:10px;background:var(--brand);color:#fff;padding:8px 14px;border-radius:8px;z-index:9999}
header.site{position:sticky;top:0;z-index:1000;background:var(--bg-glass);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--line);transition:background .35s var(--ease),border-color .35s var(--ease)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text);letter-spacing:-.2px;white-space:nowrap}
.brand:hover{color:var(--text)}
.brand .logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;font-weight:800;box-shadow:0 6px 18px var(--brand-glow);transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.brand:hover .logo{transform:rotate(-8deg) scale(1.06);box-shadow:0 10px 26px var(--brand-glow)}
.brand small{display:block;font-size:11px;color:var(--text-soft);font-weight:500;letter-spacing:.5px}
.menu{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.menu a{padding:8px 12px;border-radius:9px;color:var(--text-soft);font-size:15px;font-weight:500;position:relative;transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease)}
.menu a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.menu a:hover{background:var(--bg-soft);color:var(--brand);transform:translateY(-1px)}
.menu a:hover::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:8px}
.search{display:flex;align-items:center;background:var(--bg-soft);border-radius:10px;padding:6px 10px;border:1px solid var(--line);transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease)}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.16)}
.search input{border:0;background:transparent;outline:none;color:var(--text);width:130px;font-size:14px;font-family:inherit}
.search input::placeholder{color:var(--text-soft)}
.search button{border:0;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-radius:7px;padding:5px 10px;cursor:pointer;font-size:13px;font-family:inherit;transition:opacity .25s var(--ease),transform .25s var(--ease)}
.search button:hover{opacity:.9;transform:translateY(-1px)}
.icon-btn{border:1px solid var(--line);background:var(--card);color:var(--text);width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:17px;display:flex;align-items:center;justify-content:center;transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease)}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:0 8px 20px var(--brand-glow)}
.burger{display:none}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#f3f0ff 0%,#fff0f6 55%,#eafcff 100%);padding:56px 0 44px}
html[data-theme="dark"] .hero{background:linear-gradient(135deg,#1a1730 0%,#241a33 55%,#12262a 100%)}
.hero::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-160px;top:-200px;background:radial-gradient(circle,rgba(255,77,141,.22),transparent 65%);filter:blur(10px);pointer-events:none}
.hero::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;left:-140px;bottom:-220px;background:radial-gradient(circle,rgba(0,194,199,.20),transparent 65%);filter:blur(10px);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:40px;line-height:1.28;letter-spacing:-.5px;margin-bottom:16px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:17px;color:var(--text-soft);margin-bottom:22px;max-width:620px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:12px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),opacity .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px var(--brand-glow)}
.btn-primary:hover{color:#fff;opacity:.96;box-shadow:0 16px 34px var(--brand-glow)}
.btn-ghost{background:var(--card);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 12px 26px var(--brand-glow)}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap}
.stat b{display:block;font-size:26px;color:var(--brand);font-weight:800;line-height:1.2}
.stat span{font-size:13px;color:var(--text-soft)}
.slider{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);background:var(--bg-glass);backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);border:1px solid var(--line)}
.slider::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(108,76,241,.06),rgba(255,77,141,.06));pointer-events:none}
.slide{display:none;padding:22px;position:relative}
.slide.active{display:block;animation:fade .55s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.slide h3{font-size:18px;margin-bottom:6px}
.slide p{font-size:14px;color:var(--text-soft);margin:0}
.dots{display:flex;gap:8px;justify-content:center;padding:0 0 16px;position:relative}
.dot{width:9px;height:9px;border-radius:50%;background:var(--line);border:0;cursor:pointer;transition:all .35s var(--ease)}
.dot:hover{background:var(--text-soft)}
.dot.active{background:linear-gradient(90deg,var(--brand),var(--brand-2));width:22px;border-radius:5px}
section{padding:56px 0;border-bottom:1px solid var(--line);position:relative}
section:last-of-type{border-bottom:0}
.sec-head{max-width:780px;margin-bottom:30px}
.sec-head .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--brand);background:var(--bg-soft);padding:5px 12px;border-radius:20px;margin-bottom:12px;border:1px solid var(--line)}
h2{font-size:29px;line-height:1.35;margin-bottom:12px;letter-spacing:-.3px}
h3{font-size:20px;margin:22px 0 10px;color:var(--text);letter-spacing:-.2px}
h4{font-size:16px;margin:16px 0 8px;color:var(--brand)}
p{margin-bottom:14px;color:var(--text-soft)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(108,76,241,.5),rgba(255,77,141,.4),rgba(0,194,199,.4));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s var(--ease);pointer-events:none}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card:hover::before{opacity:1}
.card h3{margin-top:0}
.card .ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;background:var(--bg-soft);color:var(--brand);font-size:18px;transition:transform .4s var(--ease),background .4s var(--ease),color .4s var(--ease)}
.card:hover .ico{transform:scale(1.1) rotate(-6deg);background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
ul.clean{list-style:none;margin:10px 0}
ul.clean li{position:relative;padding-left:24px;margin-bottom:9px;color:var(--text-soft);transition:color .25s var(--ease),transform .25s var(--ease)}
ul.clean li::before{content:"";position:absolute;left:6px;top:11px;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
ul.clean li:hover{color:var(--text);transform:translateX(3px)}
ol.steps{list-style:none;counter-reset:s;margin:14px 0}
ol.steps li{counter-increment:s;position:relative;padding-left:50px;margin-bottom:16px;color:var(--text-soft);transition:transform .3s var(--ease)}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 6px 16px var(--brand-glow);transition:transform .3s var(--ease)}
ol.steps li:hover{transform:translateX(4px)}
ol.steps li:hover::before{transform:scale(1.08)}
ol.steps li b{display:block;color:var(--text);margin-bottom:3px}
.articles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease)}
.article:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(108,76,241,.35)}
.article .meta{font-size:12.5px;color:var(--text-soft);margin-bottom:8px;display:flex;gap:12px;flex-wrap:wrap}
.article .meta span{color:var(--brand);font-weight:600}
.article h3{font-size:17px;margin:0 0 8px;transition:color .25s var(--ease)}
.article:hover h3{color:var(--brand)}
.article p{font-size:14.5px;margin-bottom:14px}
.article .more{margin-top:auto;font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:4px;transition:gap .3s var(--ease)}
.article .more:hover{gap:9px}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:var(--card);overflow:hidden;transition:border-color .3s var(--ease),box-shadow .3s var(--ease)}
.faq-item:hover{border-color:rgba(108,76,241,.4)}
.faq-item.open{border-color:rgba(108,76,241,.5);box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;background:transparent;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;gap:14px;align-items:center;font-family:inherit;transition:color .25s var(--ease),background .25s var(--ease)}
.faq-q:hover{color:var(--brand);background:var(--bg-soft)}
.faq-q .sign{color:var(--brand);font-size:20px;flex-shrink:0;transition:transform .35s var(--ease);line-height:1}
.faq-item.open .sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a p{padding:0 20px 18px;margin:0;font-size:15px}
.case{display:flex;gap:14px;align-items:flex-start}
.case .avatar{width:52px;height:52px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:19px;background:linear-gradient(135deg,var(--brand),var(--brand-3));box-shadow:0 8px 20px var(--brand-glow);transition:transform .4s var(--ease)}
.card:hover .case .avatar{transform:scale(1.08) rotate(6deg)}
.case .who{font-size:13px;color:var(--text-soft)}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px;background:var(--card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:12px 14px;border:1px solid var(--line);text-align:left;color:var(--text-soft);transition:background .25s var(--ease),color .25s var(--ease)}
th{background:var(--bg-soft);color:var(--text);font-weight:700}
tbody tr{transition:background .25s var(--ease)}
tbody tr:hover td{background:var(--bg-soft);color:var(--text)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.info-row{display:flex;gap:12px;margin-bottom:14px;font-size:15px;color:var(--text-soft);transition:transform .25s var(--ease),color .25s var(--ease)}
.info-row:hover{transform:translateX(3px);color:var(--text)}
.info-row b{color:var(--text);min-width:76px}
footer.site{background:var(--bg-soft);border-top:1px solid var(--line);padding:44px 0 24px;position:relative;overflow:hidden}
footer.site::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-160px;top:-220px;background:radial-gradient(circle,rgba(108,76,241,.14),transparent 65%);pointer-events:none}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px;margin-bottom:28px;position:relative;z-index:1}
footer h4{font-size:15px;color:var(--text);margin-bottom:12px}
footer ul{list-style:none}
footer ul li{margin-bottom:8px;font-size:14px}
footer ul li a{color:var(--text-soft);transition:color .25s var(--ease),padding-left .25s var(--ease)}
footer ul li a:hover{color:var(--brand);padding-left:4px}
.copy{border-top:1px solid var(--line);padding-top:18px;font-size:13px;color:var(--text-soft);text-align:center;position:relative;z-index:1}
.copy p{margin-bottom:6px;font-size:13px}
#toTop{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:20px;cursor:pointer;box-shadow:0 10px 24px var(--brand-glow);opacity:0;pointer-events:none;transition:opacity .35s var(--ease),transform .35s var(--ease);z-index:900}
#toTop.show{opacity:1;pointer-events:auto}
#toTop:hover{transform:translateY(-4px) scale(1.06)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.crumb{font-size:13.5px;color:var(--text-soft);padding:14px 0 0}
.crumb a{color:var(--text-soft)}
.crumb a:hover{color:var(--brand)}
.crumb span{margin:0 6px}
@media(prefers-reduced-motion:reduce){
*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
.reveal{opacity:1;transform:none}
}
@media(max-width:980px){
.hero-grid{grid-template-columns:1fr}
.g4{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(2,1fr)}
.foot-grid{grid-template-columns:1fr 1fr}
.articles{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.hero h1{font-size:31px}
.slider{max-width:560px}
}
@media(max-width:720px){
.menu{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg-glass);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--line);flex-direction:column;padding:12px;gap:4px;box-shadow:var(--shadow-lg)}
.menu.open{display:flex;animation:fade .3s var(--ease)}
.menu a{width:100%}
.burger{display:flex}
.search input{width:96px}
.g2,.g3,.g4{grid-template-columns:1fr}
.foot-grid{grid-template-columns:1fr}
.hero h1{font-size:26px}
h2{font-size:23px}
h3{font-size:18px}
section{padding:44px 0}
.hero{padding:40px 0 34px}
.hero-stats{gap:18px}
.stat b{font-size:22px}
.card{padding:18px}
#toTop{right:16px;bottom:18px;width:42px;height:42px}
}
@media(max-width:420px){
.hero h1{font-size:23px}
.hero .lead{font-size:15.5px}
.btn{padding:11px 18px;font-size:14px}
.search{display:none}
}