:root{
  --ink:#0d1030;
  --ink-2:#3a4160;
  --ink-3:#5f6785;
  --line:#e3e8f7;
  --line-2:#dfe4f5;
  --brand:#4b2bff;
  --surface:#ffffff;
}
*{margin:0;padding:0;box-sizing:border-box}
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;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background-color:#f6f8ff;
  background-image:
    radial-gradient(1100px 560px at 6% -6%,rgba(0,194,255,.16),transparent 62%),
    radial-gradient(960px 520px at 94% -4%,rgba(123,92,255,.16),transparent 60%),
    radial-gradient(1000px 620px at 50% 106%,rgba(255,61,154,.10),transparent 64%);
}
img{max-width:100%}
a{color:inherit}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
section[id]{scroll-margin-top:84px}

.site-header{position:sticky;top:0;z-index:120;background:rgba(247,249,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(123,140,220,.18)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;flex:0 0 auto;max-width:132px;text-decoration:none}
.ai-page-logo{display:block}
.nav{display:flex;align-items:center;gap:16px}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
.nav-links a{display:inline-block;padding:8px 12px;border-radius:9px;font-size:14.5px;font-weight:500;color:var(--ink-2);text-decoration:none;transition:color .22s ease,background .22s ease}
.nav-links a:hover{color:var(--brand);background:rgba(91,43,255,.08)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:40px;height:40px;padding:0 9px;background:#fff;border:1px solid var(--line-2);border-radius:10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .26s ease,opacity .22s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:12px;font-size:15px;font-weight:600;font-family:inherit;text-decoration:none;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s ease,box-shadow .26s ease,background .26s ease,border-color .26s ease,color .26s ease}
.btn-primary{color:#fff;background:linear-gradient(120deg,#5b2bff 0%,#0f7dff 58%,#00c2ff 100%);box-shadow:0 12px 26px rgba(60,60,200,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(60,60,200,.32)}
.btn-ghost{color:var(--ink-2);background:#fff;border-color:var(--line-2)}
.btn-ghost:hover{color:var(--brand);border-color:rgba(123,92,255,.45);transform:translateY(-2px)}
.nav-cta{padding:9px 18px;font-size:14px}

.hero{position:relative;overflow:hidden;padding:62px 0 54px}
.hero-glow{position:absolute;right:-160px;top:-190px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(123,92,255,.26),rgba(0,194,255,.10) 46%,transparent 70%);filter:blur(8px);pointer-events:none;animation:floatGlow 14s ease-in-out infinite alternate}
@keyframes floatGlow{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-26px,28px,0) scale(1.06)}}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero-copy{animation:riseIn .7s ease both}
.hero-panel{animation:riseIn .82s ease .12s both}
@keyframes riseIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--brand);background:rgba(91,43,255,.08);border:1px solid rgba(91,43,255,.18);padding:4px 13px;border-radius:999px;margin-bottom:14px}
.hero-copy h1{font-size:clamp(1.85rem,4.2vw,2.85rem);line-height:1.2;letter-spacing:-.6px;color:var(--ink);margin:0 0 18px}
.hero-copy h1 .hl{color:var(--brand)}
.hero-sub{font-size:16px;color:var(--ink-2);max-width:600px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.hero-note{margin:18px 0 0;font-size:13.5px;color:var(--ink-3)}
.hero-panel{position:relative;padding:20px;border-radius:22px;background:linear-gradient(150deg,rgba(0,194,255,.16),rgba(123,92,255,.16) 48%,rgba(255,61,154,.12));border:1px solid rgba(123,92,255,.22);box-shadow:0 24px 52px rgba(60,50,150,.14)}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat{background:#fff;border:1px solid rgba(255,255,255,.9);border-radius:14px;padding:16px;box-shadow:0 8px 20px rgba(20,30,80,.06);transition:transform .25s ease,box-shadow .25s ease}
.stat:hover{transform:translateY(-3px);box-shadow:0 14px 26px rgba(60,50,150,.12)}
.stat b{display:block;font-size:1.55rem;line-height:1.15;letter-spacing:-.5px;color:var(--brand)}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--ink-3)}

.section{padding:68px 0}
.section-head{max-width:780px;margin:0 auto 36px;text-align:center}
.section-head h2{font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.35;letter-spacing:-.4px;color:var(--ink);margin:0 0 12px}
.section-head p{margin:0;font-size:15.5px;color:var(--ink-3)}

.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 10px 26px rgba(20,30,80,.05);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(60,50,150,.13);border-color:rgba(123,92,255,.34)}
.card h3{font-size:16.5px;color:var(--ink);margin:0 0 8px}
.card p{margin:0;font-size:14.5px;color:var(--ink-3)}
.service-card{position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;right:0;left:0;height:3px;background:linear-gradient(90deg,#00c2ff,#7b5cff,#ff3d9a);opacity:.9}

.tag-cloud{margin-top:26px;padding:22px;border-radius:16px;background:rgba(255,255,255,.72);border:1px dashed rgba(123,92,255,.32)}
.tag-title{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:12px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags li{font-size:13.5px;color:#2f3a66;background:#fff;border:1px solid var(--line-2);border-radius:999px;padding:5px 14px;transition:color .22s ease,border-color .22s ease,transform .22s ease}
.tags li:hover{color:var(--brand);border-color:rgba(123,92,255,.5);transform:translateY(-2px)}

.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;box-shadow:0 10px 26px rgba(20,30,80,.05);transition:transform .28s ease,box-shadow .28s ease}
.step:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(60,50,150,.12)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:11px;margin-bottom:12px;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,#5b2bff,#0f9dff)}
.step h3{font-size:15.5px;margin:0 0 8px;color:var(--ink)}
.step p{margin:0;font-size:14px;color:var(--ink-3)}

.net-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;transition:transform .26s ease,border-color .26s ease}
.net-card:hover{transform:translateY(-3px);border-color:rgba(123,92,255,.4)}
.net-card h3{font-size:15.5px;margin:0 0 6px;color:var(--brand)}
.net-card p{margin:0;font-size:13.5px;color:var(--ink-3)}

.case-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 10px 26px rgba(20,30,80,.05);transition:transform .28s ease,box-shadow .28s ease}
.case-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(60,50,150,.13)}
.case-media{aspect-ratio:4/3;background:#f2f5ff;padding:10px;display:flex;align-items:center;justify-content:center}
.case-media img{width:100%;height:100%;object-fit:contain;display:block;border-radius:10px}
.case-body{padding:18px 20px 20px}
.case-body h3{font-size:16px;margin:0 0 8px;color:var(--ink)}
.case-body p{margin:0;font-size:14px;color:var(--ink-3)}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
.gallery-item{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff;padding:8px;transition:transform .26s ease,box-shadow .26s ease}
.gallery-item:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(60,50,150,.12)}
.gallery-item img{display:block;width:100%;height:auto;border-radius:9px}

.score-card{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:24px 26px;border-radius:18px;background:linear-gradient(135deg,#f1f0ff,#e9f7ff 70%,#fff0f7);border:1px solid #dfe4ff;margin-bottom:22px}
.score-num{font-size:2.7rem;font-weight:800;line-height:1;letter-spacing:-1px;color:var(--brand)}
.score-num span{font-size:1rem;font-weight:600;color:var(--ink-3);margin-left:4px;letter-spacing:0}
.score-info{flex:1 1 260px}
.stars{font-size:1.15rem;letter-spacing:3px;color:#ffb020;margin-bottom:6px}
.score-info p{margin:0;font-size:14.5px;color:var(--ink-2)}

.table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:0 10px 26px rgba(20,30,80,.05)}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid #eef1fa;vertical-align:top}
thead th{background:#f2f5ff;color:#1b2242;font-weight:600;white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#fafbff}
td.hl-cell{color:var(--brand);font-weight:600}
.note{margin:16px 0 0;font-size:14px;color:var(--ink-3)}
.note a{color:var(--brand);font-weight:600;text-decoration:none;border-bottom:1px solid rgba(75,43,255,.4)}
.note a:hover{border-bottom-color:var(--brand)}

.review{display:flex;flex-direction:column;gap:14px}
.review-text{margin:0;font-size:14.8px;color:var(--ink-2)}
.review-author{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:6px;border-top:1px dashed var(--line)}
.avatar{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,#5b2bff,#00a6ff);flex:0 0 auto}
.review-author strong{display:block;font-size:14px;color:var(--ink)}
.review-author em{display:block;font-style:normal;font-size:12.5px;color:var(--ink-3)}

.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.wiki{background:#fff;border:1px solid var(--line);border-left:3px solid rgba(0,194,255,.7);border-radius:12px;padding:16px 18px}
.wiki h3{font-size:15px;margin:0 0 6px;color:var(--ink)}
.wiki p{margin:0;font-size:13.8px;color:var(--ink-3)}

.article-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 10px 26px rgba(20,30,80,.05)}
.article-list li{border-bottom:1px solid #eef1fa}
.article-list li:last-child{border-bottom:0}
.article-list a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 20px;font-size:15px;color:var(--ink-2);text-decoration:none;transition:background .22s ease,color .22s ease,padding-left .22s ease}
.article-list a:hover{background:#f8f9ff;color:var(--brand);padding-left:24px}
.article-list a::after{content:"→";flex:0 0 auto;color:var(--brand);font-size:15px}

.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .26s ease,box-shadow .26s ease}
.faq-item.open{border-color:rgba(123,92,255,.4);box-shadow:0 12px 26px rgba(60,50,150,.10)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;background:none;border:0;font-family:inherit;font-size:15.5px;font-weight:600;color:var(--ink);text-align:left;cursor:pointer}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;transition:transform .3s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .25s ease}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{margin:0;padding:0 18px 16px;font-size:14.8px;color:var(--ink-3)}

.partner-box{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:stretch}
.partner-copy{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 10px 26px rgba(20,30,80,.05)}
.partner-copy h2{font-size:1.4rem;margin:0 0 12px;color:var(--ink)}
.partner-copy p{margin:0 0 18px;font-size:15px;color:var(--ink-3)}
.partner-list{display:grid;gap:14px;margin:0 0 22px}
.partner-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2)}
.partner-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,#00c2ff,#7b5cff)}
.partner-list strong{color:var(--ink)}
.partner-side{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:28px;border-radius:18px;background:linear-gradient(150deg,rgba(0,194,255,.14),rgba(123,92,255,.14) 55%,rgba(255,61,154,.10));border:1px solid rgba(123,92,255,.22)}
.partner-side h3{font-size:16px;margin:0;color:var(--ink)}
.partner-side p{margin:0;font-size:14.5px;color:var(--ink-2)}

.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 12px 30px rgba(20,30,80,.06)}
.form-card h3{font-size:17px;margin:0 0 6px;color:var(--ink)}
.form-card .form-tip{margin:0 0 20px;font-size:14px;color:var(--ink-3)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line-2);border-radius:10px;font-family:inherit;font-size:14.5px;color:var(--ink);background:#fbfcff;transition:border-color .24s ease,box-shadow .24s ease,background .24s ease}
.field textarea{resize:vertical;min-height:96px}
.field input::placeholder,.field textarea::placeholder{color:#9aa3c0}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;background:#fff;border-color:#7b5cff;box-shadow:0 0 0 3px rgba(123,92,255,.16)}
.form-submit{width:100%;margin-top:2px}

.contact-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 26px rgba(20,30,80,.05)}
.contact-card h3{font-size:16.5px;margin:0 0 16px;color:var(--ink)}
.contact-list{display:grid;gap:11px;margin:0 0 18px}
.contact-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.contact-list dt{flex:0 0 84px;color:var(--ink-3);font-weight:600}
.contact-list dd{margin:0;color:var(--ink-2);word-break:break-all}
.contact-list a{color:var(--brand);text-decoration:none}
.contact-list a:hover{text-decoration:underline}
.qr-box{text-align:center;padding:14px;border-radius:14px;background:#f7f9ff;border:1px dashed rgba(123,92,255,.3)}
.qr-box img{width:150px;max-width:100%;height:auto;border-radius:10px;display:block;margin:0 auto 10px}
.qr-box p{margin:0;font-size:13.5px;color:var(--ink-3)}

.site-footer{background:#eef1fc;border-top:1px solid #dde3f5;color:var(--ink-2);margin-top:10px}
.footer-top{display:grid;grid-template-columns:1.05fr 1.95fr;gap:36px;padding:42px 0 28px;align-items:start}
.footer-brand img{display:block;max-width:132px;height:auto;margin-bottom:12px}
.footer-brand p{margin:0;font-size:14px;color:var(--ink-3);max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:var(--ink);margin:0 0 14px}
.link-tags{display:flex;flex-wrap:wrap;gap:10px}
.link-tags a{display:inline-block;font-size:13.5px;color:var(--ink-2);text-decoration:none;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid #dde3f5;transition:color .22s ease,border-color .22s ease,transform .22s ease}
.link-tags a:hover{color:var(--brand);border-color:rgba(123,92,255,.45);transform:translateY(-2px)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:16px 0 24px;border-top:1px solid #dde3f5;font-size:13px;color:var(--ink-3)}
.footer-bottom a{color:var(--ink-2);text-decoration:none}
.footer-bottom a:hover{color:var(--brand)}

.float-bar{position:fixed;right:18px;bottom:22px;z-index:130;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.float-panel{width:200px;padding:14px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:0 18px 40px rgba(20,30,80,.16);text-align:center;font-size:13px;color:var(--ink-2)}
.float-panel img{display:block;width:100%;height:auto;border-radius:10px;margin-bottom:10px}
.float-panel p{margin:0 0 6px}
.float-panel p:last-child{margin-bottom:0}
.float-btn{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border:0;border-radius:50%;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;line-height:1.1;color:#fff;background:linear-gradient(135deg,#5b2bff,#00a6ff);box-shadow:0 12px 26px rgba(60,60,200,.28);transition:transform .22s ease,box-shadow .26s ease}
.float-btn:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 18px 32px rgba(60,60,200,.34)}
.back-top{display:none;width:44px;height:44px;font-size:12px;color:var(--ink-2);background:#fff;border:1px solid var(--line-2);box-shadow:0 10px 22px rgba(20,30,80,.10)}
.back-top.show{display:flex}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:1100px){
  .nav-links a{padding:8px 9px;font-size:14px}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .nav{gap:12px}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:6px 20px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(20,30,80,.08)}
  .nav-links.open{display:flex}
  .nav-links li{border-bottom:1px solid #f0f3fc}
  .nav-links li:last-child{border-bottom:0}
  .nav-links a{padding:11px 6px;border-radius:8px;font-size:15px}
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .wiki-grid{grid-template-columns:repeat(2,1fr)}
  .partner-box,.contact-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:26px}
}
@media (max-width:640px){
  .section{padding:48px 0}
  .hero{padding:42px 0 36px}
  .section-head{margin-bottom:26px}
  .grid-2,.grid-3,.grid-4,.flow,.gallery,.wiki-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .score-card{gap:16px;padding:20px}
  .score-num{font-size:2.2rem}
  .contact-list li{flex-direction:column;gap:2px}
  .contact-list dt{flex:none}
  .float-bar{right:12px;bottom:16px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}