*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:#1f3155;
  background-color:#f4f8ff;
  background-image:
    radial-gradient(1000px 560px at 12% -160px, rgba(43,107,255,.18), transparent 65%),
    radial-gradient(900px 520px at 92% 80px, rgba(0,178,255,.14), transparent 68%),
    radial-gradient(1000px 700px at 50% 58%, rgba(43,107,255,.08), transparent 72%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:#0e1b33;line-height:1.35;font-weight:800}
p{margin:0}
a{color:#1247e8;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{background:rgba(255,255,255,.92);border-bottom:1px solid #e0e9ff;backdrop-filter:saturate(180%) blur(10px);position:relative;z-index:80}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand img{display:block;width:132px;height:auto}
.nav-wrap{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-links{display:flex;align-items:center;flex-wrap:wrap;gap:0}
.nav-links a{display:block;padding:8px 11px;font-size:14.5px;font-weight:500;color:#243a5e;border-radius:9px;transition:background .22s ease,color .22s ease,transform .22s ease}
.nav-links a:hover{background:#e8f0ff;color:#1247e8;transform:translateY(-1px)}
.nav-cta{padding:11px 22px;font-size:14.5px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:40px;border:1px solid #d9e4ff;border-radius:11px;background:#fff;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:20px;height:2px;margin:0 auto;border-radius:2px;background:#1247e8;transition:transform .25s ease,opacity .25s ease}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,#1247e8,#2b6bff);color:#fff;box-shadow:0 12px 26px rgba(18,71,232,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(18,71,232,.36)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:#1247e8;border-color:#c3d6ff;box-shadow:0 6px 18px rgba(18,71,232,.08)}
.btn-ghost:hover{background:#eef4ff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(18,71,232,.16)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 68px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero::before{width:520px;height:520px;left:-180px;top:-220px;background:radial-gradient(circle,rgba(43,107,255,.18),transparent 70%)}
.hero::after{width:620px;height:620px;right:-220px;bottom:-320px;background:radial-gradient(circle,rgba(0,178,255,.16),transparent 70%)}
.hero-inner{position:relative;z-index:1;text-align:center}
.hero-eyebrow{display:inline-block;font-size:13.5px;font-weight:700;letter-spacing:.06em;color:#0a2b8f;background:#e7efff;border:1px solid #cbdcff;padding:6px 16px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,5.4vw,54px);letter-spacing:-.5px;margin-bottom:18px}
.hero-lead{max-width:820px;margin:0 auto;font-size:clamp(15px,1.6vw,17px);color:#42557a}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:46px}
.hero-stats li{background:#fff;border:1px solid #dde7ff;border-radius:15px;padding:18px 14px;text-align:center;box-shadow:0 10px 26px rgba(18,71,232,.08);transition:transform .28s ease,box-shadow .28s ease}
.hero-stats li:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(18,71,232,.16)}
.hero-stats strong{display:block;font-size:26px;line-height:1.2;color:#1247e8;font-weight:800}
.hero-stats span{font-size:13px;color:#56668a}
.hero-inner > *{animation:heroIn .7s ease both}
.hero-inner > *:nth-child(2){animation-delay:.06s}
.hero-inner > *:nth-child(3){animation-delay:.12s}
.hero-inner > *:nth-child(4){animation-delay:.18s}
.hero-inner > *:nth-child(5){animation-delay:.24s}
@keyframes heroIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ---------- sections ---------- */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,rgba(233,241,255,.85),rgba(247,250,255,.6));border-top:1px solid #e3ecff;border-bottom:1px solid #e3ecff}
.section-head{max-width:800px;margin:0 auto 40px;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:#1247e8;background:#e7efff;border:1px solid #cbdcff;padding:5px 15px;border-radius:999px;margin:0 0 14px}
.section-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px}
.section-desc{color:#56668a;font-size:15px}
.sub-title{font-size:17px;margin:36px 0 16px;color:#0a2b8f}

/* ---------- reveal ---------- */
.reveal.in{animation:revealUp .62s ease both}
@keyframes revealUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid #dde7ff;border-radius:16px;padding:24px;box-shadow:0 10px 28px rgba(18,71,232,.07);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(18,71,232,.15);border-color:#bfd3ff}
.card h3{font-size:17px;margin-bottom:10px;color:#0e1b33}
.card p{color:#4a5a75;font-size:14.5px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start}
.about-text p{color:#3d4f73;font-size:15.5px;margin-bottom:14px}
.check-list{display:grid;gap:10px;margin-top:18px}
.check-list li{position:relative;padding-left:28px;color:#26375a;font-size:15px}
.check-list li::before{content:"✓";position:absolute;left:0;top:2px;width:19px;height:19px;border-radius:50%;background:#e7efff;color:#1247e8;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.about-panel h3{font-size:16px;margin-bottom:14px;color:#0a2b8f}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud li{font-size:13px;color:#0a2b8f;background:#eaf1ff;border:1px solid #cfdefd;border-radius:999px;padding:6px 13px;transition:background .22s ease,transform .22s ease}
.tag-cloud li:hover{background:#dbe8ff;transform:translateY(-2px)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:8px}
.steps li{background:#fff;border:1px solid #dde7ff;border-radius:15px;padding:22px 18px;box-shadow:0 10px 26px rgba(18,71,232,.07);transition:transform .28s ease,box-shadow .28s ease}
.steps li:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(18,71,232,.15)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#1247e8,#2b6bff);color:#fff;font-weight:800;font-size:15px;margin-bottom:12px}
.steps h3{font-size:15.5px;margin-bottom:8px}
.steps p{font-size:13.8px;color:#4a5a75}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.process li{background:#fff;border:1px solid #dde7ff;border-top:4px solid #2b6bff;border-radius:14px;padding:20px 18px;transition:transform .28s ease,box-shadow .28s ease}
.process li:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(18,71,232,.15)}
.process h3{font-size:15.5px;margin-bottom:8px;color:#0a2b8f}
.process p{font-size:13.8px;color:#4a5a75}

/* ---------- scene list ---------- */
.scene-box{background:#fff;border:1px solid #dde7ff;border-radius:18px;padding:26px;box-shadow:0 12px 30px rgba(18,71,232,.07);margin-top:34px}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 26px;margin-top:14px}
.scene-grid li{position:relative;padding-left:18px;font-size:14.2px;color:#42557a;line-height:1.7}
.scene-grid li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:#2b6bff}
.scene-grid strong{color:#0e1b33}

/* ---------- case ---------- */
.case-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.case-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.case-item{background:#fff;border:1px solid #dde7ff;border-radius:16px;overflow:hidden;box-shadow:0 10px 28px rgba(18,71,232,.08);transition:transform .28s ease,box-shadow .28s ease}
.case-item:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(18,71,232,.16)}
.media{background:#eef4ff;overflow:hidden}
.media-16{aspect-ratio:16/9}
.media-43{aspect-ratio:4/3}
.media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-item:hover .media img{transform:scale(1.04)}
.case-item figcaption{padding:16px 18px}
.case-item h3{font-size:15.5px;margin-bottom:6px}
.case-item p{font-size:13.6px;color:#56668a}

/* ---------- compare ---------- */
.review-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid #dde7ff;border-radius:16px;box-shadow:0 10px 28px rgba(18,71,232,.08)}
table{width:100%;border-collapse:collapse;min-width:620px;font-size:14px}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #eaf1ff;color:#3d4f73;vertical-align:top}
thead th{background:#eef4ff;color:#0a2b8f;font-weight:800;white-space:nowrap;font-size:13.5px}
tbody th{font-weight:700;color:#0e1b33;white-space:nowrap}
td.best{color:#1247e8;font-weight:700;background:#f6f9ff}
tr:last-child td,tr:last-child th{border-bottom:none}
.score-card{background:linear-gradient(160deg,#1247e8,#2b6bff);color:#fff;border-radius:18px;padding:30px 26px;text-align:center;box-shadow:0 20px 44px rgba(18,71,232,.3)}
.score-card .stars{font-size:22px;letter-spacing:4px;color:#ffd166;margin-bottom:10px}
.score-card .score{font-size:46px;font-weight:800;line-height:1.1}
.score-card .score small{font-size:16px;font-weight:600;opacity:.85}
.score-card p{color:#e6eeff;font-size:14px;margin-top:10px}
.score-card .label{font-size:14px;font-weight:700;color:#fff;margin-bottom:8px;letter-spacing:.05em}

/* ---------- token ---------- */
.token-note{font-size:13.5px;color:#56668a;margin-top:14px;text-align:center}

/* ---------- review cards ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border:1px solid #dde7ff;border-radius:16px;padding:24px;box-shadow:0 10px 28px rgba(18,71,232,.07);transition:transform .28s ease,box-shadow .28s ease}
.review-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(18,71,232,.15)}
.review-stars{color:#ff9f1a;font-size:15px;letter-spacing:3px;margin-bottom:12px}
.review-text{font-size:14.6px;color:#31456b;line-height:1.8}
.review-role{display:block;margin-top:16px;font-size:13.5px;font-weight:700;color:#0a2b8f;padding-top:14px;border-top:1px dashed #dbe5ff}

/* ---------- wiki ---------- */
.wiki-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.wiki-item{background:#fff;border:1px solid #dde7ff;border-radius:14px;padding:18px 20px;transition:transform .25s ease,box-shadow .25s ease}
.wiki-item:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(18,71,232,.13)}
.wiki-item dt{font-weight:800;color:#0a2b8f;font-size:15px;margin-bottom:6px}
.wiki-item dd{margin:0;color:#4a5a75;font-size:14px}

/* ---------- articles ---------- */
.article-list{display:grid;gap:12px;margin-top:6px}
.article-list li{background:#fff;border:1px solid #dde7ff;border-radius:13px;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.article-list li:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(18,71,232,.13);border-color:#bfd3ff}
.article-list a{font-weight:600;color:#1a3160;font-size:15px}
.article-list a:hover{color:#1247e8}
.article-meta{font-size:12.5px;color:#7b89a8;white-space:nowrap}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #dde7ff;border-radius:14px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease}
.faq-item.open{box-shadow:0 16px 34px rgba(18,71,232,.13);border-color:#bcd2ff}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;background:transparent;border:none;cursor:pointer;font-family:inherit;font-size:15.2px;font-weight:700;color:#16294a;text-align:left;transition:background .2s ease}
.faq-q:hover{background:#f5f9ff}
.faq-icon{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:#e7efff;color:#1247e8;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;transition:transform .28s ease,background .28s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#1247e8;color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 20px 18px;font-size:14.5px;color:#4a5a75}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:start}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:700;color:#1f3155}
.field input,.field select,.field textarea{width:100%;border:1px solid #cdd9f5;border-radius:11px;padding:12px 14px;font-size:14px;font-family:inherit;color:#0e1b33;background:#fbfdff;transition:border-color .22s ease,box-shadow .22s ease}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#1247e8;box-shadow:0 0 0 3px rgba(18,71,232,.14)}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px}
.form-tip{font-size:13px;color:#7b89a8}
.contact-card{background:#fff;border:1px solid #dde7ff;border-radius:16px;padding:24px;box-shadow:0 10px 28px rgba(18,71,232,.08)}
.contact-card h3{font-size:16px;margin-bottom:14px;color:#0a2b8f}
.qr-box{text-align:center;margin-bottom:18px}
.qr-box img{display:block;width:100%;max-width:190px;height:auto;margin:0 auto 10px;border-radius:12px;border:1px solid #e3ecff}
.qr-box span{font-size:13px;color:#56668a}
.contact-list{display:grid;gap:10px;font-size:14px;color:#3d4f73}
.contact-list li{display:flex;gap:10px;align-items:flex-start}
.contact-list strong{color:#0e1b33;font-weight:700;min-width:74px;flex-shrink:0}

/* ---------- join ---------- */
.join-box{background:linear-gradient(150deg,#0a2b8f,#1247e8 55%,#2b6bff);border-radius:20px;padding:38px 34px;color:#fff;display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center;box-shadow:0 24px 54px rgba(18,71,232,.32)}
.join-box h2{color:#fff;font-size:clamp(21px,2.6vw,28px);margin-bottom:12px}
.join-box p{color:#dbe6ff;font-size:15px}
.join-points{display:grid;gap:10px;margin-top:18px}
.join-points li{position:relative;padding-left:22px;font-size:14.5px;color:#e8efff}
.join-points li::before{content:"◆";position:absolute;left:0;top:0;color:#ffd166;font-size:11px}
.join-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.btn-light{background:#fff;color:#1247e8;box-shadow:0 12px 26px rgba(0,0,0,.16)}
.btn-light:hover{transform:translateY(-2px);background:#f2f7ff}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ---------- footer ---------- */
.site-footer{background:#eaf1ff;border-top:1px solid #d5e2ff;color:#26375a;padding:40px 0 22px}
.footer-top{display:grid;grid-template-columns:1fr 1.3fr;gap:28px;align-items:start}
.footer-brand img{display:block;width:132px;height:auto;margin-bottom:12px}
.footer-brand p{font-size:14px;color:#41537a}
.footer-links h3{font-size:15px;color:#0a2b8f;margin-bottom:12px;font-weight:800}
.footer-link-list{display:flex;flex-wrap:wrap;gap:8px 14px}
.footer-link-list a{font-size:13.5px;color:#31456b;padding:4px 0;transition:color .2s ease}
.footer-link-list a:hover{color:#1247e8;text-decoration:underline}
.footer-bottom{margin-top:26px;padding-top:16px;border-top:1px solid #d5e2ff;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:13px;color:#41537a}
.footer-bottom a{color:#1247e8}

/* ---------- floating ---------- */
.float-service{position:fixed;right:18px;bottom:18px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.float-panel{display:none;width:216px;background:#fff;border:1px solid #dde7ff;border-radius:15px;box-shadow:0 20px 46px rgba(18,71,232,.22);padding:14px;text-align:center}
.float-panel.open{display:block;animation:heroIn .3s ease both}
.float-panel img{display:block;width:100%;height:auto;border-radius:11px;margin-bottom:8px}
.float-panel p{font-size:12.5px;color:#41537a;line-height:1.6}
.float-btns{display:flex;flex-direction:column;gap:10px;align-items:center}
.float-btn{width:54px;height:54px;padding:0;border:none;border-radius:50%;cursor:pointer;font-family:inherit;font-size:12px;font-weight:800;line-height:1.15;color:#fff;background:linear-gradient(135deg,#1247e8,#2b6bff);box-shadow:0 12px 26px rgba(18,71,232,.34);display:flex;align-items:center;justify-content:center;transition:transform .22s ease,box-shadow .22s ease,opacity .25s ease}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(18,71,232,.4)}
#backTop{opacity:0;pointer-events:none;transform:translateY(10px);background:#fff;color:#1247e8;border:1px solid #c3d6ff;box-shadow:0 10px 22px rgba(18,71,232,.16);font-size:18px}
#backTop.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .nav-toggle{display:flex}
  .nav-wrap{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:12px;background:#fff;border:1px solid #dde7ff;border-top:none;border-radius:0 0 16px 16px;box-shadow:0 18px 36px rgba(18,71,232,.14);padding:14px 20px 20px;margin-left:0}
  .nav-wrap.open{display:flex}
  .nav-links{flex-direction:column;align-items:stretch}
  .nav-links a{padding:12px 10px;font-size:15px}
  .nav-cta{width:100%}
  .about-grid,.review-wrap,.contact-grid,.footer-top,.join-box{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .steps,.process{grid-template-columns:repeat(2,1fr)}
  .grid-3,.review-grid,.grid-6{grid-template-columns:repeat(2,1fr)}
  .case-grid-3{grid-template-columns:repeat(2,1fr)}
  .join-actions{justify-content:flex-start}
}
@media (max-width:680px){
  .section{padding:56px 0}
  .hero{padding:52px 0 48px}
  .grid-3,.grid-2,.review-grid,.grid-6,.wiki-grid,.scene-grid,.case-grid-2,.case-grid-3,.form-grid,.steps,.process{grid-template-columns:1fr}
  .section-head{margin-bottom:28px}
  .card{padding:20px}
  .scene-box{padding:20px}
  .join-box{padding:26px 22px}
  .article-list li{flex-direction:column;align-items:flex-start;gap:6px}
  .footer-bottom{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,.reveal.in,.hero-inner > *{animation:none!important;transition:none!important}
}