*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:#111a33;
  background-color:#fbf9f4;
  background-image:
    radial-gradient(900px 520px at 6% -6%, rgba(31,75,255,.10), transparent 62%),
    radial-gradient(780px 480px at 98% 3%, rgba(255,58,94,.10), transparent 60%),
    radial-gradient(860px 560px at 50% 104%, rgba(255,197,40,.12), transparent 66%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
a{color:#1f4bff}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,249,244,.94);border-bottom:1px solid #e7e1d3;backdrop-filter:blur(8px)}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;flex:0 0 auto;max-width:170px;text-decoration:none}
.ai-page-logo{display:block;width:auto;max-height:42px}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:9px 8px;font-size:14px;font-weight:500;color:#2b3352;text-decoration:none;border-radius:8px;white-space:nowrap;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a:focus-visible{color:#1f4bff;background:#eef1ff;outline:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;text-decoration:none;border:2px solid #0d1230;cursor:pointer;font-family:inherit;line-height:1.4;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn-primary{background:#1f4bff;color:#fff;box-shadow:4px 4px 0 #0d1230}
.btn-primary:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 #0d1230;background:#1539d8}
.btn-ghost{background:#fff;color:#0d1230;box-shadow:4px 4px 0 #ffc528}
.btn-ghost:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 #ffc528}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:10px}
.nav-cta{flex:0 0 auto}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:44px;height:44px;padding:0;border:1px solid #ded7c7;border-radius:12px;background:#fff;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#0d1230;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{padding:66px 0 76px;position:relative;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:52px;align-items:center}
.hero-tag{display:inline-block;margin:0 0 20px;padding:6px 15px;border-radius:999px;background:#eef1ff;border:1px solid #cdd6ff;color:#1f4bff;font-size:13px;font-weight:600}
h1{font-size:clamp(30px,4.3vw,50px);line-height:1.22;margin:0 0 20px;color:#0d1230;font-weight:800;letter-spacing:-.01em}
h1 .hl{color:#1f4bff}
.hero-desc{margin:0 0 28px;max-width:56ch;font-size:16.5px;color:#3b4463}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
.hero-note{margin:0;font-size:14px;color:#616a88}
.hero-note a{color:#1f4bff;font-weight:600;text-decoration:none;border-bottom:1px solid #b9c4ff}
.hero-note a:hover{border-bottom-color:#1f4bff}
.hero-panel{
  position:relative;display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:22px;border-radius:24px;
  border:1px solid #e6e0d2;background-color:#fff;
  background-image:
    radial-gradient(240px 180px at 92% 4%, rgba(31,75,255,.16), transparent 72%),
    radial-gradient(220px 170px at 4% 96%, rgba(255,58,94,.15), transparent 72%),
    radial-gradient(260px 180px at 60% 62%, rgba(255,197,40,.16), transparent 70%);
  box-shadow:0 30px 60px -42px rgba(13,18,48,.5)
}
.stat-card{padding:18px 16px;border-radius:16px;background:rgba(255,255,255,.9);border:1px solid #eae4d6;border-left:3px solid #1f4bff;transition:transform .22s ease,box-shadow .22s ease}
.stat-card:nth-child(2){border-left-color:#ff3a5e}
.stat-card:nth-child(3){border-left-color:#e8a500}
.stat-card:nth-child(4){border-left-color:#00b98b}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 18px 30px -22px rgba(13,18,48,.5)}
.stat-num{display:block;font-size:26px;font-weight:800;color:#0d1230;line-height:1.2;letter-spacing:-.02em}
.stat-label{display:block;margin-top:6px;font-size:13px;color:#5b6484}

/* ---------- sections ---------- */
.section{padding:76px 0;position:relative}
.section.tint{background:rgba(255,255,255,.64);border-top:1px solid #ece6d8;border-bottom:1px solid #ece6d8}
.section-head{max-width:780px;margin:0 0 42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-label{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:#1f4bff;text-transform:uppercase}
.sec-label::before{content:"";width:22px;height:3px;border-radius:2px;background:#ff3a5e}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin:0 0 14px;color:#0d1230;font-weight:800;letter-spacing:-.01em}
.sec-desc{margin:0;font-size:16px;color:#4a5372}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#fff;border:1px solid #e8e2d4;border-radius:18px;padding:26px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-5px);box-shadow:0 24px 40px -30px rgba(13,18,48,.55);border-color:#cfd8ff}
.card h3{margin:0 0 10px;font-size:18px;font-weight:700;color:#0d1230}
.card p{margin:0;font-size:15px;color:#4a5372}
.ico{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:13px;margin-bottom:16px}
.ico-blue{background:#e9edff;color:#1f4bff}
.ico-coral{background:#ffe9ee;color:#d61f45}
.ico-yellow{background:#fff3d4;color:#9a6600}
.ico-mint{background:#e2f8f0;color:#007f5b}

/* ---------- tags ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{display:inline-block;padding:8px 14px;font-size:14px;color:#2b3352;background:#fff;border:1px solid #ded7c7;border-radius:999px;transition:border-color .2s,color .2s,background .2s,transform .2s}
.tag:hover{border-color:#1f4bff;color:#1f4bff;background:#f3f5ff;transform:translateY(-2px)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{position:relative;background:#fff;border:1px solid #e8e2d4;border-radius:18px;padding:26px 24px;transition:transform .22s ease,box-shadow .22s ease}
.step:hover{transform:translateY(-5px);box-shadow:0 24px 40px -30px rgba(13,18,48,.5)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:#0d1230;color:#fff;font-weight:700;font-size:15px;margin-bottom:14px}
.step h3{margin:0 0 8px;font-size:17px;color:#0d1230}
.step p{margin:0;font-size:14.5px;color:#4a5372}

/* ---------- cases ---------- */
.case-card{background:#fff;border:1px solid #e8e2d4;border-radius:18px;overflow:hidden;transition:transform .22s ease,box-shadow .22s ease}
.case-card:hover{transform:translateY(-5px);box-shadow:0 26px 42px -30px rgba(13,18,48,.55)}
.case-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#f1eee6}
.case-media.square{aspect-ratio:1/1}
.case-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:18px 20px 22px}
.case-body h3{margin:0 0 6px;font-size:17px;color:#0d1230}
.case-body p{margin:0;font-size:14.5px;color:#5b6484}

/* ---------- compare ---------- */
.rating{display:flex;flex-wrap:wrap;align-items:center;gap:24px 32px;padding:26px 28px;border-radius:20px;background:linear-gradient(120deg,#0d1230,#23337a);color:#fff;margin-bottom:26px}
.rating-stars{display:block;font-size:22px;letter-spacing:3px;line-height:1.2;color:#ffc528}
.rating-label{margin:6px 0 0;font-size:14.5px;color:#c3cbe8}
.rating-score-box{display:flex;align-items:baseline;gap:6px}
.rating-score-box strong{font-size:44px;line-height:1;font-weight:800;color:#ffc528;letter-spacing:-.02em}
.rating-score-box span{font-size:15px;color:#c3cbe8}
.rating-note{margin:0;flex:1 1 260px;font-size:14px;color:#c3cbe8}
.table-wrap{overflow-x:auto;border:1px solid #e8e2d4;border-radius:18px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:780px;font-size:15px}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid #efeadf;vertical-align:top}
thead th{background:#0d1230;color:#fff;font-weight:700;font-size:14.5px;white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#f7f9ff}
td.brand-col{color:#1f4bff;font-weight:600}

/* ---------- token ---------- */
.price-card{background:#fff;border:1px solid #e8e2d4;border-radius:18px;padding:24px;transition:transform .22s ease,box-shadow .22s ease}
.price-card:hover{transform:translateY(-5px);box-shadow:0 24px 40px -30px rgba(13,18,48,.5)}
.price-card h3{margin:0 0 8px;font-size:17px;color:#0d1230}
.price-card p{margin:0 0 12px;font-size:14.5px;color:#4a5372}
.price-badge{display:inline-block;padding:4px 12px;border-radius:999px;background:#e2f8f0;color:#007f5b;font-size:13px;font-weight:700}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #e8e2d4;border-radius:14px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:#1f4bff;box-shadow:0 14px 30px -26px rgba(31,75,255,.9)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;background:none;border:0;font-family:inherit;font-size:16px;font-weight:600;color:#0d1230;text-align:left;cursor:pointer;line-height:1.5}
.faq-icon{flex:0 0 auto;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#eef1ff;color:#1f4bff;font-size:16px;line-height:1;transition:transform .25s,background .25s,color .25s}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#1f4bff;color:#fff}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{margin:0;padding:0 20px 18px;font-size:15px;color:#4a5372}

/* ---------- reviews ---------- */
.review-card{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid #e8e2d4;border-radius:18px;padding:24px;transition:transform .22s ease,box-shadow .22s ease}
.review-card:hover{transform:translateY(-5px);box-shadow:0 24px 40px -30px rgba(13,18,48,.5)}
.review-text{margin:0;font-size:15px;color:#39415e}
.review-person{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:15px;flex:0 0 auto}
.review-card:nth-child(4n+1) .avatar{background:#1f4bff}
.review-card:nth-child(4n+2) .avatar{background:#d61f45}
.review-card:nth-child(4n+3) .avatar{background:#007f5b}
.review-card:nth-child(4n+4) .avatar{background:#9a6600}
.review-name{display:block;font-size:15px;font-weight:700;color:#0d1230;line-height:1.4}
.review-role{display:block;font-size:13px;color:#7a829c}

/* ---------- news / wiki ---------- */
.article-slot{margin-bottom:26px}
.news-card{display:flex;flex-direction:column;justify-content:space-between;gap:14px;background:#fff;border:1px solid #e8e2d4;border-radius:16px;padding:22px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.news-card:hover{transform:translateY(-4px);border-color:#cfd8ff;box-shadow:0 22px 38px -32px rgba(13,18,48,.55)}
.news-card h3{margin:0;font-size:16.5px;color:#0d1230;line-height:1.5}
.news-card a.more{font-size:14px;font-weight:600;color:#1f4bff;text-decoration:none}
.news-card a.more:hover{text-decoration:underline}

/* ---------- contact ---------- */
.contact-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:26px;align-items:start}
.form-card{background:#fff;border:1px solid #e8e2d4;border-radius:20px;padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:#2b3352}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;font-size:15px;font-family:inherit;color:#0d1230;background:#fdfcf9;border:1px solid #ddd6c6;border-radius:10px;outline:none;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#1f4bff;box-shadow:0 0 0 3px rgba(31,75,255,.14)}
.field textarea{min-height:110px;resize:vertical}
.contact-card{background:#fff;border:1px solid #e8e2d4;border-radius:20px;padding:26px}
.contact-item{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed #e6e0d2}
.contact-item:last-of-type{border-bottom:none}
.contact-key{flex:0 0 86px;font-size:14px;color:#7a829c}
.contact-val{font-size:15px;font-weight:600;color:#0d1230;word-break:break-all}
.contact-val a{color:#1f4bff;text-decoration:none}
.contact-val a:hover{text-decoration:underline}
.qr-box{width:150px;margin-top:14px;padding:10px;border:1px solid #e8e2d4;border-radius:14px;background:#fff}
.qr-box img{display:block;width:100%;height:auto;border-radius:8px}
.qr-tip{margin:8px 0 0;font-size:13px;color:#7a829c}

/* ---------- join ---------- */
.join-box{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:24px;align-items:center;padding:32px;border-radius:22px;background:linear-gradient(130deg,#1f4bff,#2a3f9e 62%,#0d1230);color:#fff;box-shadow:0 30px 60px -42px rgba(13,18,48,.8)}
.join-box h3{margin:0 0 10px;font-size:22px;color:#fff}
.join-box p{margin:0 0 10px;font-size:15px;color:#d9dfff}
.join-list{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.join-list li{position:relative;padding-left:20px;font-size:14.5px;color:#e3e8ff}
.join-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:#ffc528}
.join-action{text-align:left}
.join-action .btn{background:#ffc528;color:#0d1230;border-color:#0d1230;box-shadow:4px 4px 0 #0d1230}
.join-action .btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 #0d1230}
.join-action p{margin:14px 0 0;font-size:13.5px;color:#d9dfff}

/* ---------- footer ---------- */
.site-footer{background:#0d1230;color:#c9d0e6;padding-top:52px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:34px}
.footer-title{margin:0 0 14px;font-size:15px;font-weight:700;color:#fff}
.footer-desc{margin:14px 0 0;font-size:14px;color:#a8b1ce;max-width:38ch}
.footer-logo{display:inline-block;max-width:160px}
.footer-logo img{display:block;width:auto;max-height:42px;max-width:100%}
.footer-links a{display:block;padding:5px 0;font-size:14.5px;color:#c9d0e6;text-decoration:none;transition:color .2s}
.footer-links a:hover{color:#ffc528}
.friend-links{display:flex;flex-wrap:wrap;gap:10px 20px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12)}
.friend-links a{font-size:14px;color:#a8b1ce;text-decoration:none;transition:color .2s}
.friend-links a:hover{color:#ffc528}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;text-align:center;font-size:13.5px;color:#8e97b8}

/* ---------- float dock ---------- */
.float-dock{position:fixed;right:18px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.dock-btn{width:48px;height:48px;border-radius:50%;border:2px solid #0d1230;background:#ffc528;color:#0d1230;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:3px 3px 0 #0d1230;transition:transform .18s ease,background .18s ease;padding:0;font-family:inherit}
.dock-btn:hover{transform:translateY(-3px);background:#ffd659}
#backTop{background:#fff;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,transform .18s}
#backTop.show{opacity:1;visibility:visible}
.svc-panel{position:fixed;right:18px;bottom:84px;z-index:95;width:min(296px,calc(100vw - 36px));background:#fff;border:2px solid #0d1230;border-radius:18px;padding:18px;box-shadow:8px 8px 0 rgba(13,18,48,.85);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,visibility .25s,transform .25s}
.svc-panel.open{opacity:1;visibility:visible;transform:none}
.svc-panel h3{margin:0 0 10px;font-size:16px;color:#0d1230}
.svc-panel p{margin:0 0 8px;font-size:14px;color:#4a5372}
.svc-panel .qr-box{width:100%;max-width:160px;margin:6px auto 10px}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .nav-toggle{display:flex}
  .nav-links{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:#fff;border:1px solid #e7e1d3;border-top:none;border-radius:0 0 16px 16px;padding:10px 18px 16px;box-shadow:0 24px 40px -30px rgba(13,18,48,.6);gap:0}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 4px;border-bottom:1px solid #f1ede3;border-radius:0;font-size:15px}
  .nav-links a:last-child{border-bottom:none}
  .nav-cta{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-panel{max-width:560px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-layout{grid-template-columns:1fr}
  .join-box{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:980px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:760px){
  .section{padding:54px 0}
  .hero{padding:42px 0 54px}
  .section-head{margin-bottom:30px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .rating{padding:22px}
  .join-box{padding:24px}
}
@media(max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-panel{grid-template-columns:1fr 1fr;gap:12px;padding:16px}
  .stat-num{font-size:22px}
  .stat-card{padding:14px 12px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}