*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:#f4fbfb;color:#173239;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
h1,h2,h3{color:#0f2c33;line-height:1.35;font-weight:700}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:#0e9b93;font-weight:600;margin-bottom:12px}
.section-title{font-size:30px;margin-bottom:14px}
.section-desc{color:#4c6b71;max-width:720px;font-size:15px;margin-bottom:36px}
.section{padding:72px 0;position:relative}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}
.btn-primary{background:linear-gradient(120deg,#0e9b93,#14b8a6);color:#fff;box-shadow:0 10px 24px rgba(14,155,147,.28)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(14,155,147,.36)}
.btn-ghost{background:#ffffff;color:#0e7f78;border:1px solid rgba(14,155,147,.4)}
.btn-ghost:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(14,155,147,.18)}
.btn:active{transform:scale(.97)}

/* NAV */
.site-header{position:sticky;top:0;z-index:80;background:rgba(244,251,251,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(14,155,147,.14)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.ai-page-logo{width:auto;max-height:40px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{padding:8px 9px;font-size:14px;color:#2b4a50;border-radius:8px;transition:color .2s ease,background .2s ease;white-space:nowrap}
.nav-links a:hover{color:#0e9b93;background:rgba(14,155,147,.08)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta .btn{padding:10px 20px;font-size:14px}
.menu-toggle{display:none;background:#fff;border:1px solid rgba(14,155,147,.32);border-radius:10px;width:44px;height:44px;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;background:#0e7f78;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* HERO */
.hero{position:relative;overflow:hidden;padding:78px 0 90px;background:radial-gradient(circle at 82% 12%,rgba(20,184,166,.22),transparent 46%),radial-gradient(circle at 8% 84%,rgba(56,189,248,.18),transparent 48%),linear-gradient(160deg,#eafaf8 0%,#f4fbfb 52%,#eef7fb 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(14,155,147,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(14,155,147,.06) 1px,transparent 1px);background-size:52px 52px;pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.85);border:1px solid rgba(14,155,147,.3);font-size:13px;color:#0e7f78;font-weight:600;margin-bottom:20px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#14b8a6;box-shadow:0 0 0 4px rgba(20,184,166,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(20,184,166,.2)}50%{box-shadow:0 0 0 9px rgba(20,184,166,.06)}}
.hero h1{font-size:40px;letter-spacing:.5px;margin-bottom:20px}
.hero h1 .accent{background:linear-gradient(120deg,#0e9b93,#2aa7d8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:16px;color:#3f6067;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.9);color:#2b4a50;border:1px solid rgba(14,155,147,.18)}
.hero-panel{position:relative;border-radius:22px;padding:26px;background:linear-gradient(155deg,rgba(255,255,255,.96),rgba(230,248,247,.9));border:1px solid rgba(14,155,147,.2);box-shadow:0 26px 60px rgba(11,85,82,.14)}
.hero-panel h3{font-size:17px;margin-bottom:16px}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stat-item{background:#fff;border:1px solid rgba(14,155,147,.16);border-radius:14px;padding:16px 14px;transition:transform .3s ease,box-shadow .3s ease}
.stat-item:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(14,155,147,.16)}
.stat-item strong{display:block;font-size:22px;color:#0e9b93;font-weight:800;letter-spacing:.5px}
.stat-item small{font-size:12.5px;color:#587a80}

/* SECTION BG LANGUAGE */
.zone-a{background:linear-gradient(180deg,#f4fbfb 0%,#eef9f8 100%)}
.zone-b{background:linear-gradient(180deg,#eef9f8 0%,#f5fbfa 100%)}
.zone-c{background:linear-gradient(180deg,#f5fbfa 0%,#eef7fb 100%)}
.zone-d{background:linear-gradient(180deg,#eef7fb 0%,#f4fbfb 100%)}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.about-text p{color:#476a70;font-size:15px;margin-bottom:14px}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.point{background:#fff;border:1px solid rgba(14,155,147,.18);border-radius:14px;padding:14px 16px;transition:transform .3s ease,box-shadow .3s ease}
.point:hover{transform:translateY(-4px);box-shadow:0 12px 24px rgba(14,155,147,.12)}
.point strong{display:block;font-size:14.5px;color:#0f2c33;margin-bottom:4px}
.point span{font-size:13px;color:#5a7b81}
.media-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.media-card{border-radius:18px;overflow:hidden;border:1px solid rgba(14,155,147,.2);background:#fff;box-shadow:0 16px 36px rgba(11,85,82,.1)}
.media-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.media-card.tall{grid-column:span 2}
.media-card.tall img{aspect-ratio:16/9}

/* CAPABILITY */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-card{background:#fff;border-radius:18px;padding:26px 22px;border:1px solid rgba(14,155,147,.16);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;position:relative;overflow:hidden}
.cap-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#0e9b93,#38bdf8);transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
.cap-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(14,155,147,.16);border-color:rgba(14,155,147,.4)}
.cap-card:hover::after{transform:scaleX(1)}
.cap-icon{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,rgba(14,155,147,.14),rgba(56,189,248,.16));display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:#0e9b93;font-weight:800;font-size:18px}
.cap-card h3{font-size:17px;margin-bottom:8px}
.cap-card p{font-size:14px;color:#557a80}

/* FLOW */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-step{background:#fff;border-radius:16px;padding:24px 20px;border:1px solid rgba(14,155,147,.16);position:relative;transition:transform .3s ease,box-shadow .3s ease}
.flow-step:hover{transform:translateY(-5px);box-shadow:0 16px 32px rgba(14,155,147,.14)}
.flow-step .num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#0e9b93,#14b8a6);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px;margin-bottom:12px}
.flow-step h3{font-size:15.5px;margin-bottom:6px}
.flow-step p{font-size:13.5px;color:#557a80}

/* TABLE */
.table-wrap{overflow-x:auto;border-radius:18px;border:1px solid rgba(14,155,147,.2);background:#fff;box-shadow:0 16px 36px rgba(11,85,82,.08)}
table{width:100%;border-collapse:collapse;min-width:720px}
thead th{background:linear-gradient(120deg,#0e9b93,#14b8a6);color:#fff;font-size:14px;font-weight:600;padding:15px 18px;text-align:left;white-space:nowrap}
tbody td{padding:14px 18px;font-size:14px;color:#40616a;border-bottom:1px solid rgba(14,155,147,.12)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(14,155,147,.05)}
td.highlight{color:#0e9b93;font-weight:700}

/* REVIEW */
.score-box{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:center;background:#fff;border-radius:20px;padding:32px;border:1px solid rgba(14,155,147,.2);box-shadow:0 18px 40px rgba(11,85,82,.1)}
.score-main{text-align:center}
.score-main .big{font-size:64px;font-weight:800;color:#0e9b93;line-height:1}
.score-main .out{font-size:15px;color:#5a7b81}
.stars{color:#f5a623;font-size:20px;letter-spacing:2px;margin:10px 0 4px}
.score-main .rec{font-size:14px;color:#40616a}
.score-tags{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.score-tags span{font-size:13.5px;padding:10px 14px;border-radius:10px;background:rgba(14,155,147,.08);color:#22505a;border:1px solid rgba(14,155,147,.14)}

/* TOKEN PRICING */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{background:#fff;border-radius:18px;padding:28px 24px;border:1px solid rgba(14,155,147,.18);transition:transform .3s ease,box-shadow .3s ease}
.price-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(14,155,147,.16)}
.price-card.featured{border:2px solid #0e9b93;box-shadow:0 20px 44px rgba(14,155,147,.18)}
.price-card h3{font-size:17px;margin-bottom:6px}
.price-card .price{font-size:30px;font-weight:800;color:#0e9b93;margin:10px 0 4px}
.price-card .price small{font-size:13px;color:#6b8a90;font-weight:500}
.price-card ul{margin-top:16px;display:grid;gap:9px}
.price-card ul li{font-size:13.5px;color:#4f7178;padding-left:20px;position:relative}
.price-card ul li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#0e9b93,#38bdf8)}

/* CASE */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border-radius:18px;overflow:hidden;border:1px solid rgba(14,155,147,.18);transition:transform .3s ease,box-shadow .3s ease}
.case-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(14,155,147,.16)}
.case-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#e6f6f5}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .thumb img{transform:scale(1.05)}
.case-card .body{padding:18px 20px}
.case-card h3{font-size:16px;margin-bottom:6px}
.case-card p{font-size:13.5px;color:#557a80}

/* REVIEWS */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border-radius:18px;padding:24px;border:1px solid rgba(14,155,147,.18);transition:transform .3s ease,box-shadow .3s ease}
.review-card:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(14,155,147,.14)}
.review-card .quote{font-size:14px;color:#40616a;margin-bottom:16px}
.review-user{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#0e9b93,#38bdf8);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}
.review-user strong{display:block;font-size:14px;color:#0f2c33}
.review-user span{font-size:12.5px;color:#6b8a90}
.review-stars{color:#f5a623;font-size:14px;letter-spacing:1px;margin-bottom:10px}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border-radius:14px;border:1px solid rgba(14,155,147,.18);overflow:hidden;transition:box-shadow .3s ease}
.faq-item.open{box-shadow:0 14px 30px rgba(14,155,147,.14)}
.faq-q{width:100%;background:none;border:none;text-align:left;padding:18px 22px;font-size:15px;font-weight:600;color:#0f2c33;display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer}
.faq-q .icon{width:24px;height:24px;border-radius:50%;background:rgba(14,155,147,.1);color:#0e9b93;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;transition:transform .3s ease}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 18px;font-size:14px;color:#4f7178}

/* FORM */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.form-info p{font-size:14.5px;color:#476a70;margin-bottom:14px}
.contact-list{display:grid;gap:12px;margin-top:20px}
.contact-item{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid rgba(14,155,147,.18);border-radius:12px;padding:14px 16px}
.contact-item strong{font-size:13.5px;color:#0f2c33;display:block;min-width:74px}
.contact-item span{font-size:13.5px;color:#557a80;word-break:break-all}
.form-card{background:#fff;border-radius:20px;padding:30px;border:1px solid rgba(14,155,147,.2);box-shadow:0 20px 44px rgba(11,85,82,.1)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card p.form-sub{font-size:13.5px;color:#5a7b81;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:#22474f;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;font-size:14px;border-radius:10px;border:1px solid rgba(14,155,147,.26);background:#f9fdfd;color:#173239;font-family:inherit;transition:border-color .25s ease,box-shadow .25s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#0e9b93;box-shadow:0 0 0 3px rgba(14,155,147,.14)}
.field textarea{resize:vertical;min-height:104px}
.form-card .btn{width:100%}

/* ARTICLE */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{background:#fff;border-radius:16px;padding:22px;border:1px solid rgba(14,155,147,.18);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;gap:10px}
.article-card:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(14,155,147,.14)}
.article-card .tag{font-size:12px;color:#0e9b93;font-weight:600;letter-spacing:1px}
.article-card h3{font-size:15.5px}
.article-card p{font-size:13.5px;color:#557a80;flex:1}
.article-card .more{font-size:13.5px;color:#0e9b93;font-weight:600}

/* TAG CLOUD */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag-cloud a{font-size:13.5px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid rgba(14,155,147,.22);color:#2b5a62;transition:background .25s ease,color .25s ease,transform .25s ease}
.tag-cloud a:hover{background:linear-gradient(120deg,#0e9b93,#14b8a6);color:#fff;transform:translateY(-3px)}

/* SERVICE NETWORK */
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net-item{background:#fff;border-radius:14px;padding:20px;border:1px solid rgba(14,155,147,.18);text-align:center;transition:transform .3s ease,box-shadow .3s ease}
.net-item:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(14,155,147,.14)}
.net-item strong{display:block;font-size:15px;color:#0f2c33;margin-bottom:4px}
.net-item span{font-size:13px;color:#5a7b81}

/* FLOAT */
.float-service{position:fixed;right:22px;bottom:26px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0e9b93,#14b8a6);color:#fff;font-size:13px;font-weight:700;box-shadow:0 12px 26px rgba(14,155,147,.32);transition:transform .25s ease}
.float-btn:hover{transform:translateY(-4px) scale(1.04)}
.back-top{background:#fff;color:#0e9b93;border:1px solid rgba(14,155,147,.35);font-size:18px;opacity:0;pointer-events:none;transition:opacity .3s ease,transform .25s ease}
.back-top.show{opacity:1;pointer-events:auto}
.kefu-panel{position:fixed;right:22px;bottom:150px;z-index:91;width:220px;background:#fff;border-radius:16px;border:1px solid rgba(14,155,147,.24);box-shadow:0 20px 44px rgba(11,85,82,.18);padding:14px;display:none;text-align:center}
.kefu-panel.show{display:block;animation:fadeUp .3s ease}
.kefu-panel img{width:100%;border-radius:10px;margin-bottom:8px}
.kefu-panel p{font-size:12.5px;color:#557a80}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* FOOTER */
.site-footer{background:#08302f;color:#cfe7e4;padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.footer-brand p{font-size:13.5px;color:#a8ccc8;margin-top:14px;max-width:280px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col ul{display:grid;gap:8px}
.footer-col ul li a,.footer-col ul li span{font-size:13.5px;color:#a8ccc8;transition:color .2s ease}
.footer-col ul li a:hover{color:#5eead4}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:13px;color:#8fb9b5}
.friend-links{display:flex;flex-wrap:wrap;gap:8px 16px;padding:0 0 22px;font-size:13px}
.friend-links a{color:#a8ccc8;transition:color .2s ease}
.friend-links a:hover{color:#5eead4}

@media (max-width:1024px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:10px 20px 18px;border-bottom:1px solid rgba(14,155,147,.2);box-shadow:0 18px 30px rgba(11,85,82,.1);gap:2px}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:11px 6px}
  .menu-toggle{display:flex}
  .nav-wrap{position:relative}
  .nav-cta .btn-ghost{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .cap-grid,.case-grid,.review-grid,.article-grid,.price-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .about-grid,.form-wrap,.score-box{grid-template-columns:1fr}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .hero{padding:52px 0 64px}
  .hero h1{font-size:28px}
  .section{padding:52px 0}
  .section-title{font-size:23px}
  .cap-grid,.case-grid,.review-grid,.article-grid,.price-grid,.flow,.net-grid{grid-template-columns:1fr}
  .about-points{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .score-tags{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-service{right:14px;bottom:18px}
  .kefu-panel{right:14px;bottom:140px;width:200px}
}