*{margin:0;padding:0;box-sizing:border-box}
:root{
  --mint:#2bb98d;
  --mint-deep:#178a67;
  --mint-soft:#e6f7f0;
  --mint-line:#c6ecdd;
  --ink:#16302b;
  --ink-2:#3d5751;
  --ink-3:#6b837d;
  --bg:#f5fbf8;
  --bg-2:#eef8f3;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(23,138,103,.10);
  --shadow-lg:0 18px 44px rgba(23,138,103,.16);
  --radius:18px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 520px at 85% -8%,rgba(43,185,141,.16),transparent 60%),
    radial-gradient(900px 460px at -10% 12%,rgba(160,230,205,.28),transparent 62%),
    linear-gradient(180deg,#f7fcfa 0%,#f0faf5 46%,#f6fcf9 100%);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(198,236,221,.7)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo{width:auto;max-width:150px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{display:inline-block;padding:8px 12px;font-size:14px;color:var(--ink-2);border-radius:10px;transition:color .25s,background .25s}
.nav-links a:hover{color:var(--mint-deep);background:var(--mint-soft)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:700;padding:11px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s,color .25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--mint) 0%,var(--mint-deep) 100%);color:#fff;box-shadow:0 8px 20px rgba(43,185,141,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(43,185,141,.4)}
.btn-ghost{background:#fff;color:var(--mint-deep);border-color:var(--mint-line)}
.btn-ghost:hover{background:var(--mint-soft);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--ink);border-color:#d6e9e1}
.btn-line:hover{border-color:var(--mint);color:var(--mint-deep)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--mint-line);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink-2);border-radius:2px;transition:.3s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;border-top:1px solid var(--mint-line);background:#fff}
.mobile-nav.open{display:block}
.mobile-nav ul{padding:8px 0}
.mobile-nav a{display:block;padding:12px 20px;font-size:15px;color:var(--ink-2);border-bottom:1px solid #f0f8f4}
.mobile-nav a:last-child{border-bottom:0}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(720px 380px at 78% 18%,rgba(43,185,141,.18),transparent 62%),
  radial-gradient(560px 320px at 12% 78%,rgba(120,220,190,.20),transparent 64%);pointer-events:none}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(43,185,141,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(43,185,141,.07) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 72%);-webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 72%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.85);border:1px solid var(--mint-line);font-size:13px;font-weight:700;color:var(--mint-deep);box-shadow:0 6px 16px rgba(23,138,103,.08);animation:fadeUp .7s both}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(43,185,141,.18)}
.hero h1{margin:22px 0 18px;font-size:clamp(30px,4.4vw,50px);line-height:1.22;letter-spacing:-.5px;font-weight:900;color:var(--ink);animation:fadeUp .7s .08s both}
.hero h1 .hl{color:var(--mint-deep);position:relative}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;background:rgba(43,185,141,.18);border-radius:6px;z-index:-1}
.hero-desc{font-size:16px;color:var(--ink-2);max-width:600px;animation:fadeUp .7s .16s both}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px;animation:fadeUp .7s .24s both}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;animation:fadeUp .7s .32s both}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-points svg{flex-shrink:0}
.hero-panel{position:relative;display:grid;gap:16px;animation:fadeUp .8s .2s both}
.stat-card{background:rgba(255,255,255,.9);border:1px solid rgba(198,236,221,.9);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-card.main{background:linear-gradient(140deg,#ffffff 0%,#e9f9f1 100%)}
.stat-label{font-size:13px;color:var(--ink-3);font-weight:600;letter-spacing:.5px}
.stat-value{font-size:32px;font-weight:900;color:var(--mint-deep);line-height:1.3;margin-top:4px}
.stat-note{font-size:13px;color:var(--ink-2);margin-top:4px}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-row .stat-value{font-size:24px}

/* ===== Section base ===== */
.section{padding:72px 0;position:relative}
.section-head{max-width:760px;margin:0 auto 46px;text-align:center}
.section-tag{display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;color:var(--mint-deep);background:rgba(43,185,141,.12);padding:6px 14px;border-radius:999px;margin-bottom:14px}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-.3px;line-height:1.3}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:15px}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.about-text p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.about-feature{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.feature-chip{display:flex;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--mint-line);border-radius:14px;padding:16px;transition:transform .3s,box-shadow .3s}
.feature-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature-ico{width:36px;height:36px;flex-shrink:0;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--mint-soft);color:var(--mint-deep)}
.feature-chip h3{font-size:15px;font-weight:800;margin-bottom:2px}
.feature-chip p{font-size:13px;color:var(--ink-3);margin:0;line-height:1.6}
.about-side{background:linear-gradient(150deg,#ffffff 0%,#ecf9f2 100%);border:1px solid var(--mint-line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.about-side h3{font-size:18px;font-weight:900;margin-bottom:6px}
.about-side .side-sub{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.model-list{display:flex;flex-wrap:wrap;gap:8px}
.model-list span{font-size:12.5px;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--mint-line);color:var(--ink-2);transition:.25s;cursor:default}
.model-list span:hover{background:var(--mint);color:#fff;border-color:var(--mint);transform:translateY(-2px)}

/* ===== Services ===== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{background:#fff;border:1px solid #e2f2ea;border-radius:var(--radius);padding:26px 22px;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.svc-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--mint),#7ddcc0);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--mint-line)}
.svc-card:hover::after{transform:scaleX(1)}
.svc-ico{width:46px;height:46px;border-radius:13px;background:linear-gradient(140deg,var(--mint-soft),#d3f3e6);display:flex;align-items:center;justify-content:center;color:var(--mint-deep);margin-bottom:16px}
.svc-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.svc-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ===== Scenes timeline ===== */
.scene-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene-item{background:#fff;border:1px solid #e4f3ec;border-radius:16px;padding:20px;display:flex;gap:14px;align-items:flex-start;transition:transform .3s,box-shadow .3s}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.scene-num{font-size:14px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--mint),var(--mint-deep));width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.scene-item h3{font-size:15px;font-weight:800;margin-bottom:4px}
.scene-item p{font-size:13px;color:var(--ink-3);line-height:1.65}

/* ===== Network ===== */
.network{background:linear-gradient(180deg,rgba(230,247,240,.55) 0%,rgba(255,255,255,0) 100%);border-radius:28px;padding:46px 34px;border:1px solid rgba(198,236,221,.7)}
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.net-card{background:#fff;border:1px solid var(--mint-line);border-radius:16px;padding:22px;text-align:center;transition:transform .3s,box-shadow .3s}
.net-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.net-card h3{font-size:16px;font-weight:800;margin-bottom:6px}
.net-card p{font-size:13px;color:var(--ink-3)}

/* ===== Process ===== */
.process-line{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.process-step{background:#fff;border:1px solid #e2f2ea;border-radius:16px;padding:24px 18px;text-align:center;transition:transform .3s,box-shadow .3s,border-color .3s}
.process-step:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--mint)}
.step-index{width:42px;height:42px;margin:0 auto 14px;border-radius:50%;background:var(--mint-soft);color:var(--mint-deep);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:16px;border:1px dashed var(--mint)}
.process-step h3{font-size:15px;font-weight:800;margin-bottom:6px}
.process-step p{font-size:13px;color:var(--ink-3)}

/* ===== Cases ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:#fff;border:1px solid #e2f2ea;border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:20px}
.case-body h3{font-size:16px;font-weight:800;margin-bottom:6px}
.case-body p{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ===== Compare ===== */
.compare-head{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin-bottom:30px}
.score-card{background:#fff;border:1px solid var(--mint-line);border-radius:18px;padding:22px 30px;text-align:center;box-shadow:var(--shadow);min-width:200px;transition:transform .3s}
.score-card:hover{transform:translateY(-4px)}
.score-card .score-val{font-size:42px;font-weight:900;color:var(--mint-deep);line-height:1.1}
.score-card .score-val small{font-size:16px;color:var(--ink-3)}
.score-card .score-label{font-size:13px;color:var(--ink-2);margin-top:4px;font-weight:700}
.stars{color:#f2a93b;letter-spacing:3px;font-size:18px;margin-top:6px}
.table-scroll{overflow-x:auto;border:1px solid #e2f2ea;border-radius:18px;background:#fff;box-shadow:var(--shadow)}
table.compare{width:100%;min-width:680px;border-collapse:collapse;font-size:14px}
table.compare th,table.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid #eef8f3}
table.compare thead th{background:linear-gradient(180deg,#f1fbf6,#e9f8f1);font-weight:800;color:var(--ink);font-size:14px}
table.compare thead th:nth-child(3){color:var(--mint-deep)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover td{background:#f8fdfb}
table.compare td:nth-child(1){font-weight:700;color:var(--ink-2)}
table.compare td:nth-child(3){color:var(--mint-deep);font-weight:700}

/* ===== Token price ===== */
.token-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.token-card{background:#fff;border:1px solid var(--mint-line);border-radius:16px;padding:22px;transition:transform .3s,box-shadow .3s}
.token-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.token-card h3{font-size:15px;font-weight:800;margin-bottom:8px}
.token-price{font-size:26px;font-weight:900;color:var(--mint-deep);line-height:1.2}
.token-price span{font-size:13px;font-weight:600;color:var(--ink-3)}
.token-card .compare-note{font-size:12.5px;color:var(--ink-3);margin-top:8px}

/* ===== Reviews ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border:1px solid #e2f2ea;border-radius:16px;padding:24px;transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;gap:14px}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.review-quote{font-size:14px;color:var(--ink-2);line-height:1.8;flex:1}
.review-user{display:flex;align-items:center;gap:12px;padding-top:14px;border-top:1px dashed #e2f2ea}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(140deg,var(--mint),var(--mint-deep));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex-shrink:0}
.user-name{font-size:14px;font-weight:800}
.user-role{font-size:12.5px;color:var(--ink-3)}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid #e2f2ea;border-radius:14px;overflow:hidden;transition:box-shadow .3s,border-color .3s}
.faq-item.open{border-color:var(--mint);box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;font-size:15px;font-weight:700;color:var(--ink);font-family:inherit}
.faq-q .icon{width:24px;height:24px;border-radius:50%;background:var(--mint-soft);color:var(--mint-deep);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .3s;font-size:16px;font-weight:900}
.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 20px;color:var(--ink-2);font-size:14px;line-height:1.8}

/* ===== Articles ===== */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{background:#fff;border:1px solid #e2f2ea;border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:10px;transition:transform .3s,box-shadow .3s}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.article-tag{font-size:12px;font-weight:800;color:var(--mint-deep);background:var(--mint-soft);padding:4px 10px;border-radius:999px;align-self:flex-start}
.article-card h3{font-size:16px;font-weight:800;line-height:1.5}
.article-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7;flex:1}
.article-link{font-size:13.5px;font-weight:800;color:var(--mint-deep);display:inline-flex;align-items:center;gap:6px}
.article-link:hover{gap:10px}

/* ===== Form ===== */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start;background:linear-gradient(150deg,#ffffff,#eaf8f1);border:1px solid var(--mint-line);border-radius:24px;padding:38px;box-shadow:var(--shadow)}
.form-info h3{font-size:22px;font-weight:900;margin-bottom:12px}
.form-info p{font-size:14px;color:var(--ink-2);margin-bottom:20px}
.contact-list{display:grid;gap:14px}
.contact-item{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid #e2f2ea;border-radius:12px;padding:14px 16px}
.contact-item .ci-label{font-size:12px;color:var(--ink-3);font-weight:700}
.contact-item .ci-val{font-size:14px;font-weight:800;color:var(--ink);word-break:break-all}
.contact-item .ci-val a{color:var(--mint-deep)}
.contact-item .ci-val a:hover{text-decoration:underline}
.qr-box{margin-top:18px;display:flex;align-items:center;gap:14px;background:#fff;border:1px solid #e2f2ea;border-radius:12px;padding:14px}
.qr-box img{width:92px;height:92px;object-fit:contain;border-radius:8px;border:1px solid #eef8f3}
.qr-box p{font-size:13px;color:var(--ink-2);font-weight:700}
.qr-box span{display:block;font-size:12px;color:var(--ink-3);font-weight:500;margin-top:2px}
.form-card{background:#fff;border:1px solid #e2f2ea;border-radius:18px;padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid #dbece5;border-radius:10px;font-size:14px;font-family:inherit;color:var(--ink);background:#fbfefc;transition:border-color .25s,box-shadow .25s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(43,185,141,.14);background:#fff}
.form-group textarea{min-height:110px;resize:vertical}
.form-submit{width:100%;padding:14px;font-size:15px}
.form-tip{font-size:12px;color:var(--ink-3);margin-top:10px;text-align:center}

/* ===== Partner ===== */
.partner{background:linear-gradient(135deg,rgba(43,185,141,.10),rgba(160,230,205,.16));border:1px solid var(--mint-line);border-radius:24px;padding:40px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.partner h2{font-size:clamp(22px,2.6vw,30px);font-weight:900;line-height:1.35;margin-bottom:12px}
.partner p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px}
.partner-points{display:grid;gap:10px}
.partner-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.partner-points svg{flex-shrink:0;margin-top:4px}
.partner-cta{background:#fff;border:1px solid var(--mint-line);border-radius:18px;padding:26px;text-align:center;box-shadow:var(--shadow)}
.partner-cta h3{font-size:17px;font-weight:900;margin-bottom:8px}
.partner-cta p{font-size:13px;color:var(--ink-3);margin-bottom:16px}

/* ===== Footer ===== */
.site-footer{background:#0f2a24;color:#cfe8df;padding:52px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:34px}
.footer-brand h3{font-size:18px;font-weight:900;color:#fff;margin-bottom:10px}
.footer-brand p{font-size:13px;color:#a9cbc0;line-height:1.8;margin-bottom:12px}
.footer-brand .f-mail{font-size:13px;color:#bfe6d9}
.footer-brand .f-mail a{color:#7fe0bd}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:13px;color:#a9cbc0;transition:color .25s}
.footer-col a:hover{color:#7fe0bd}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 14px}
.footer-links a{font-size:13px;color:#a9cbc0}
.footer-links a:hover{color:#7fe0bd}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:12.5px;color:#8fb5a9}
.footer-bottom a{color:#8fb5a9}
.footer-bottom a:hover{color:#7fe0bd}

/* ===== Floating ===== */
.float-kf{position:fixed;right:22px;bottom:96px;z-index:200}
.kf-toggle{width:56px;height:56px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--mint),var(--mint-deep));color:#fff;font-size:22px;cursor:pointer;box-shadow:0 10px 26px rgba(43,185,141,.4);display:flex;align-items:center;justify-content:center;transition:transform .3s}
.kf-toggle:hover{transform:scale(1.06)}
.kf-panel{position:absolute;right:0;bottom:70px;width:236px;background:#fff;border-radius:16px;box-shadow:0 18px 44px rgba(16,42,36,.2);padding:16px;border:1px solid var(--mint-line);display:none;text-align:center}
.kf-panel.show{display:block;animation:fadeUp .3s both}
.kf-panel img{width:180px;height:180px;object-fit:contain;margin:0 auto 8px;border-radius:8px}
.kf-panel p{font-size:13px;font-weight:800;color:var(--ink)}
.kf-panel span{font-size:12px;color:var(--ink-3)}
.back-top{position:fixed;right:22px;bottom:28px;z-index:200;width:48px;height:48px;border-radius:50%;border:1px solid var(--mint-line);background:#fff;color:var(--mint-deep);cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.3s}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--mint-soft);transform:translateY(-3px)}

/* ===== Responsive ===== */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-panel{max-width:620px}
  .about-grid{grid-template-columns:1fr}
  .svc-grid,.scene-wrap,.case-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,1fr)}
  .net-grid,.token-grid{grid-template-columns:repeat(2,1fr)}
  .process-line{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .form-wrap{grid-template-columns:1fr}
  .partner{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nav-links,.nav-actions .btn-ghost{display:none}
  .menu-toggle{display:flex}
  .nav-actions .btn-primary{padding:9px 16px;font-size:13px}
}
@media (max-width:680px){
  .section{padding:54px 0}
  .hero{padding:52px 0 60px}
  .svc-grid,.scene-wrap,.case-grid,.review-grid,.article-grid,.net-grid,.token-grid{grid-template-columns:1fr}
  .process-line{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .about-feature{grid-template-columns:1fr}
  .form-wrap,.partner{padding:24px}
  .network{padding:30px 20px}
  .float-kf{right:14px;bottom:84px}
  .back-top{right:14px;bottom:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}