:root{
  --mint:#2fb694;
  --mint-dark:#1f8c71;
  --mint-light:#e6f7f1;
  --mint-soft:#f2fbf7;
  --ink:#173b33;
  --ink-2:#33554d;
  --gray:#6b7f7a;
  --line:#dcece6;
  --bg:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(31,140,113,.08);
  --shadow-hover:0 18px 44px rgba(31,140,113,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink-2);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:84px 0}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.12em;color:var(--mint-dark);background:var(--mint-light);padding:6px 16px;border-radius:999px;font-weight:600;margin-bottom:16px}
.sec-head h2{font-size:34px;color:var(--ink);font-weight:800;line-height:1.3;letter-spacing:-.5px}
.sec-head p{margin-top:14px;color:var(--gray);font-size:16px}
.grad-text{background:linear-gradient(120deg,var(--mint) 0%,#3fd6ae 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* NAV */
header.nav{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;color:var(--ink)}
.brand img{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:0;list-style:none}
.nav-links li a{display:inline-block;padding:8px 11px;font-size:14.5px;color:var(--ink-2);font-weight:500;border-radius:8px;transition:.22s}
.nav-links li a:hover{color:var(--mint-dark);background:var(--mint-soft)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border-radius:10px;font-weight:600;font-size:15px;border:none;cursor:pointer;transition:.25s;font-family:inherit}
.btn-primary{background:linear-gradient(120deg,var(--mint) 0%,#37c8a4 100%);color:#fff;box-shadow:0 8px 20px rgba(47,182,148,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(47,182,148,.4)}
.btn-ghost{background:transparent;color:var(--mint-dark);border:1.5px solid var(--mint);}
.btn-ghost:hover{background:var(--mint-soft)}
.btn-lg{padding:15px 34px;font-size:16.5px;border-radius:12px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s;border-radius:2px}

/* HERO */
.hero{position:relative;padding:90px 0 84px;background:linear-gradient(150deg,#f2fbf7 0%,#e6f7f1 46%,#f7fdfa 100%);overflow:hidden}
.hero::before{content:"";position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(47,182,148,.16),transparent 70%);top:-180px;right:-140px;pointer-events:none}
.hero::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(63,214,174,.14),transparent 70%);bottom:-200px;left:-120px;pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:46px;line-height:1.22;font-weight:800;color:var(--ink);letter-spacing:-1px}
.hero .lead{margin-top:22px;font-size:17.5px;color:var(--ink-2);max-width:560px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{font-size:13.5px;font-weight:600;color:var(--mint-dark);background:#fff;border:1px solid var(--line);padding:7px 15px;border-radius:999px;box-shadow:0 2px 8px rgba(31,140,113,.05)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:16px;font-size:13.5px;color:var(--gray)}
.hero-panel{background:#fff;border-radius:22px;padding:26px;box-shadow:var(--shadow);border:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-box{background:var(--mint-soft);border-radius:14px;padding:18px 16px;border:1px solid var(--line);transition:.25s}
.stat-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-box .num{font-size:28px;font-weight:800;color:var(--mint-dark);line-height:1.1}
.stat-box .num small{font-size:15px}
.stat-box .label{margin-top:6px;font-size:13px;color:var(--gray)}
.hero-panel-full{grid-column:1/-1;background:linear-gradient(120deg,var(--mint) 0%,#3fd6ae 100%);color:#fff;border-radius:14px;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.hero-panel-full b{font-size:15px}
.hero-panel-full span{font-size:13px;opacity:.9}
.hero-panel-full a{background:#fff;color:var(--mint-dark);padding:9px 18px;border-radius:9px;font-weight:700;font-size:13.5px;transition:.22s}
.hero-panel-full a:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(0,0,0,.12)}
.float-dot{position:absolute;border-radius:50%;background:rgba(47,182,148,.22);animation:floatY 6s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

/* MARQUEE / MODELS */
.model-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;overflow:hidden}
.model-track{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.model-tag{font-size:13.5px;font-weight:600;color:var(--ink-2);background:var(--mint-soft);border:1px solid var(--line);padding:7px 16px;border-radius:8px}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-text h2{font-size:32px;color:var(--ink);font-weight:800;line-height:1.3}
.about-text p{margin-top:18px;color:var(--gray);font-size:15.5px}
.about-points{margin-top:26px;display:grid;gap:14px}
.about-point{display:flex;gap:14px;align-items:flex-start;background:var(--mint-soft);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.about-point .ic{flex:0 0 38px;height:38px;border-radius:10px;background:linear-gradient(120deg,var(--mint),#3fd6ae);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.about-point b{color:var(--ink);font-size:15px;display:block}
.about-point span{font-size:13.5px;color:var(--gray)}
.about-media{display:grid;gap:16px}
.about-media img{border-radius:18px;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s}
.about-media img:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.about-media .row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* CAPABILITY CARDS */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.3s;position:relative;overflow:hidden}
.card::after{content:"";position:absolute;inset:0;border-radius:var(--radius);box-shadow:inset 0 0 0 0 var(--mint);transition:.3s;pointer-events:none}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.card .card-ic{width:52px;height:52px;border-radius:14px;background:linear-gradient(120deg,var(--mint-light),#d6f2e9);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:22px;font-weight:800;color:var(--mint-dark)}
.card h3{font-size:18.5px;color:var(--ink);font-weight:700;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--gray)}

/* FEATURE LIST */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.feat{background:var(--mint-soft);border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s}
.feat:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow)}
.feat b{display:block;color:var(--ink);font-size:15px;margin-bottom:6px}
.feat span{font-size:13px;color:var(--gray)}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;position:relative;transition:.3s}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step .no{font-size:15px;font-weight:800;color:#fff;background:linear-gradient(120deg,var(--mint),#3fd6ae);width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.step h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.step p{font-size:14px;color:var(--gray)}

/* TABLE */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
table.cmp{width:100%;border-collapse:collapse;min-width:720px;background:#fff}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.cmp thead th{background:linear-gradient(120deg,var(--mint) 0%,#3fd6ae 100%);color:#fff;font-weight:700;font-size:15px}
table.cmp thead th:first-child{border-radius:0}
table.cmp tbody tr:hover{background:var(--mint-soft)}
table.cmp td:first-child{font-weight:700;color:var(--ink)}
.rate-stars{color:#f5a623;font-size:18px;letter-spacing:2px}
.score-badge{display:inline-flex;align-items:baseline;gap:4px;background:var(--mint-light);color:var(--mint-dark);font-weight:800;padding:6px 14px;border-radius:10px;font-size:15px}

/* REVIEW */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.3s;display:flex;flex-direction:column}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.review .stars{color:#f5a623;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.review p{font-size:14.5px;color:var(--ink-2);flex:1}
.review .who{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.review .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(120deg,var(--mint),#3fd6ae);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.review .who b{display:block;font-size:14.5px;color:var(--ink)}
.review .who span{font-size:12.5px;color:var(--gray)}

/* CASE */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;transition:.3s;display:flex;flex-direction:column}
.case:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--mint-soft)}
.case .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case:hover .thumb img{transform:scale(1.06)}
.case .body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.case .tag{font-size:12px;font-weight:700;color:var(--mint-dark);background:var(--mint-light);padding:4px 12px;border-radius:6px;align-self:flex-start;margin-bottom:12px}
.case h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.case p{font-size:13.5px;color:var(--gray)}

/* BANNER IMAGES */
.banner-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.banner-strip img{border-radius:14px;border:1px solid var(--line);width:100%;aspect-ratio:4/3;object-fit:cover;transition:.3s}
.banner-strip img:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}

/* TOKEN PRICE */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.price{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:.3s;position:relative}
.price:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.price.hot{border:2px solid var(--mint);box-shadow:var(--shadow)}
.price.hot::before{content:"推荐";position:absolute;top:18px;right:18px;background:var(--mint);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:6px}
.price h3{font-size:19px;color:var(--ink);margin-bottom:6px}
.price .sub{font-size:13px;color:var(--gray);margin-bottom:20px}
.price .p{font-size:36px;font-weight:800;color:var(--mint-dark);line-height:1}
.price .p small{font-size:15px;color:var(--gray);font-weight:500}
.price ul{list-style:none;margin:22px 0;display:grid;gap:10px}
.price ul li{font-size:14px;color:var(--ink-2);padding-left:24px;position:relative}
.price ul li::before{content:"✓";position:absolute;left:0;color:var(--mint);font-weight:800}
.price .btn{width:100%}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}
.faq:hover{border-color:var(--mint)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;background:none;border:none;text-align:left;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);font-family:inherit;transition:.2s}
.faq-q:hover{color:var(--mint-dark)}
.faq-q .ico{flex:0 0 24px;height:24px;border-radius:50%;background:var(--mint-light);color:var(--mint-dark);display:flex;align-items:center;justify-content:center;font-weight:800;transition:.3s;font-size:16px}
.faq.open .faq-q .ico{transform:rotate(45deg);background:var(--mint);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--gray)}

/* FORM */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.form-info h2{font-size:32px;color:var(--ink);font-weight:800;line-height:1.3}
.form-info p{margin-top:16px;color:var(--gray);font-size:15.5px}
.contact-list{margin-top:30px;display:grid;gap:16px}
.contact-item{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;transition:.25s}
.contact-item:hover{box-shadow:var(--shadow);transform:translateX(4px)}
.contact-item .ic{flex:0 0 40px;height:40px;border-radius:10px;background:var(--mint-light);display:flex;align-items:center;justify-content:center;color:var(--mint-dark);font-weight:800}
.contact-item b{display:block;font-size:13px;color:var(--gray);font-weight:500}
.contact-item span{font-size:15px;color:var(--ink);font-weight:600;word-break:break-all}
.qr-box{margin-top:26px;display:flex;align-items:center;gap:18px;background:var(--mint-soft);border:1px dashed var(--mint);border-radius:14px;padding:18px}
.qr-box img{width:110px;height:110px;border-radius:10px;object-fit:cover;border:1px solid var(--line);background:#fff}
.qr-box b{display:block;color:var(--ink);font-size:15px}
.qr-box span{font-size:13px;color:var(--gray)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow)}
.form-card h3{font-size:22px;color:var(--ink);margin-bottom:6px}
.form-card .tip{font-size:13.5px;color:var(--gray);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;padding:12px 16px;border:1.5px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;color:var(--ink-2);background:#fff;transition:.2s;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--mint);box-shadow:0 0 0 4px rgba(47,182,148,.12)}
.field textarea{resize:vertical;min-height:110px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-card .btn{width:100%;margin-top:8px}

/* NETWORK / TIMELINE */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.net{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.25s;text-align:center}
.net:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.net b{display:block;color:var(--ink);font-size:16px;margin-bottom:4px}
.net span{font-size:13px;color:var(--gray)}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:38px}
.timeline::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--mint),#d6f2e9)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item::before{content:"";position:absolute;left:-33px;top:5px;width:16px;height:16px;border-radius:50%;background:var(--mint);border:3px solid #fff;box-shadow:0 0 0 2px var(--mint)}
.tl-item b{display:block;font-size:16px;color:var(--ink)}
.tl-item span{font-size:14px;color:var(--gray)}

/* ARTICLES */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.art{display:flex;gap:16px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.25s;align-items:center}
.art:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--mint)}
.art .num{flex:0 0 44px;height:44px;border-radius:12px;background:var(--mint-light);color:var(--mint-dark);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.art a{font-size:15px;font-weight:600;color:var(--ink);transition:.2s}
.art a:hover{color:var(--mint-dark)}
.art .meta{font-size:12.5px;color:var(--gray);margin-top:4px}

/* TAG CLOUD */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.tag-cloud span{padding:9px 20px;border-radius:999px;background:var(--mint-soft);border:1px solid var(--line);font-size:14px;color:var(--ink-2);font-weight:500;transition:.22s;cursor:default}
.tag-cloud span:hover{background:var(--mint);color:#fff;border-color:var(--mint);transform:translateY(-3px)}

/* FOOTER */
footer{background:#12332c;color:#a8c4bc;padding:60px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#fff;font-weight:800;font-size:19px}
.foot-brand img{height:36px;width:auto}
.foot p{font-size:13.5px;line-height:1.8}
.foot h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot ul{list-style:none;display:grid;gap:10px}
.foot ul li a{font-size:13.5px;transition:.2s}
.foot ul li a:hover{color:#3fd6ae}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px}
.foot-links a{font-size:13px}
.foot-links a:hover{color:#3fd6ae}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px}
.foot-bottom a{color:#3fd6ae}

/* FLOATING */
.float-cs{position:fixed;right:22px;bottom:96px;z-index:800;display:flex;flex-direction:column;gap:12px}
.float-cs a{width:52px;height:52px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--mint-dark);transition:.25s;text-align:center;line-height:1.2;padding:4px}
.float-cs a:hover{background:var(--mint);color:#fff;transform:translateY(-3px)}
.back-top{position:fixed;right:22px;bottom:26px;z-index:800;width:52px;height:52px;border-radius:14px;background:linear-gradient(120deg,var(--mint),#3fd6ae);color:#fff;border:none;cursor:pointer;font-size:20px;box-shadow:0 8px 20px rgba(47,182,148,.35);opacity:0;pointer-events:none;transition:.3s;display:flex;align-items:center;justify-content:center}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-3px)}

/* REVEAL */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* RESPONSIVE */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero-panel{max-width:560px}
  .cards,.review-grid,.case-grid,.price-grid{grid-template-columns:repeat(2,1fr)}
  .steps,.feature-grid,.network-grid,.banner-strip{grid-template-columns:repeat(2,1fr)}
  .about-grid,.form-wrap{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .menu-toggle{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);gap:0;align-items:stretch}
  .nav-links.open li a{padding:12px 8px;border-radius:8px}
  .article-list{grid-template-columns:1fr}
}
@media(max-width:680px){
  section{padding:60px 0}
  .hero{padding:60px 0 56px}
  .hero h1{font-size:30px}
  .hero .lead{font-size:15.5px}
  .sec-head h2{font-size:26px}
  .cards,.review-grid,.case-grid,.price-grid,.steps,.feature-grid,.network-grid,.banner-strip{grid-template-columns:1fr}
  .hero-panel{grid-template-columns:1fr 1fr}
  .hero-panel-full{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .float-cs{bottom:90px;right:14px}
  .back-top{right:14px}
  .about-media .row2{grid-template-columns:1fr}
  .qr-box{flex-direction:column;text-align:center}
  .container{padding:0 18px}
  .nav-cta .btn-ghost{display:none}
}