:root{
  --c-primary:#1a5cff;
  --c-primary-d:#0d3fc9;
  --c-accent:#00d4c8;
  --c-accent2:#ff6a3d;
  --c-ink:#0e1633;
  --c-ink2:#3a4668;
  --c-muted:#6b7794;
  --c-line:#e5e9f4;
  --c-bg:#f6f8ff;
  --c-white:#ffffff;
  --grad-hero:linear-gradient(135deg,#0b1a4a 0%,#123a9e 42%,#1a5cff 72%,#00c9d4 100%);
  --grad-accent:linear-gradient(120deg,#1a5cff,#00d4c8);
  --shadow-sm:0 4px 16px rgba(26,92,255,.08);
  --shadow-md:0 12px 36px rgba(18,45,120,.12);
  --shadow-lg:0 24px 60px rgba(11,26,74,.18);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--c-ink);
  background:var(--c-white);
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:84px 0;position:relative;}
.section--bg{background:var(--c-bg);}
.section--grad{background:linear-gradient(180deg,#f6f8ff 0%,#eef3ff 100%);}
.sec-head{text-align:center;max-width:820px;margin:0 auto 52px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);background:rgba(26,92,255,.08);padding:7px 16px;border-radius:100px;margin-bottom:18px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.sec-title{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.28;letter-spacing:-.01em;color:var(--c-ink);}
.sec-title .hl{background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;}
.sec-sub{margin-top:16px;font-size:16px;color:var(--c-muted);line-height:1.85;}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--c-line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.ai-page-logo{max-height:42px;width:auto;}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.01em;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
.nav-links a{position:relative;padding:9px 13px;font-size:14.5px;font-weight:600;color:var(--c-ink2);border-radius:8px;transition:color .22s,background .22s;white-space:nowrap;}
.nav-links a:hover{color:var(--c-primary);background:rgba(26,92,255,.07);}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:100px;background:var(--grad-accent);color:#fff !important;font-weight:700;font-size:14.5px;box-shadow:0 8px 22px rgba(26,92,255,.35);transition:transform .2s,box-shadow .2s;white-space:nowrap;}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(26,92,255,.45);background:linear-gradient(120deg,#0d3fc9,#00bfc4) !important;color:#fff !important;}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px;border-radius:10px;border:1px solid var(--c-line);}
.nav-toggle span{width:22px;height:2.4px;background:var(--c-ink);border-radius:2px;transition:.3s;}
.nav-toggle.open span:nth-child(1){transform:translateY(7.4px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.4px) rotate(-45deg);}

/* ===== HERO ===== */
.hero{position:relative;background:var(--grad-hero);color:#fff;overflow:hidden;padding:96px 0 96px;}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 82% 18%,rgba(0,212,200,.30),transparent 42%),
  radial-gradient(circle at 12% 82%,rgba(26,92,255,.42),transparent 46%);
  pointer-events:none;}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 78%);pointer-events:none;}
.hero-orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.5;pointer-events:none;}
.orb1{width:280px;height:280px;top:-90px;right:8%;background:radial-gradient(circle,rgba(0,255,235,.55),transparent 68%);animation:float 9s ease-in-out infinite;}
.orb2{width:200px;height:200px;bottom:-60px;left:6%;background:radial-gradient(circle,rgba(120,160,255,.6),transparent 68%);animation:float 11s ease-in-out infinite reverse;}
.orb3{width:120px;height:120px;top:30%;left:44%;background:radial-gradient(circle,rgba(255,140,90,.5),transparent 70%);animation:float 8s ease-in-out infinite;}
@keyframes float{0%,100%{transform:translateY(0) scale(1);}50%{transform:translateY(-26px) scale(1.06);}}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:100px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.24);font-size:13.5px;font-weight:600;letter-spacing:.03em;backdrop-filter:blur(6px);margin-bottom:26px;}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 0 rgba(0,212,200,.7);animation:pulse 2s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,212,200,.65);}70%{box-shadow:0 0 0 12px rgba(0,212,200,0);}100%{box-shadow:0 0 0 0 rgba(0,212,200,0);}}
.hero h1{font-size:clamp(30px,4.4vw,54px);font-weight:900;line-height:1.18;letter-spacing:-.02em;margin-bottom:22px;}
.hero h1 .grad{background:linear-gradient(100deg,#7ff6ee,#9fc2ff 55%,#ffffff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-desc{font-size:clamp(15px,1.5vw,17.5px);line-height:1.9;color:rgba(255,255,255,.86);max-width:590px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 34px;border-radius:100px;font-size:16px;font-weight:700;transition:transform .2s,box-shadow .25s,background .25s;border:2px solid transparent;cursor:pointer;}
.btn-primary{background:#fff;color:var(--c-primary-d);box-shadow:0 12px 34px rgba(0,0,0,.22);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(0,0,0,.3);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.4);backdrop-filter:blur(6px);}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-3px);}
.btn-accent{background:var(--grad-accent);color:#fff;box-shadow:0 12px 30px rgba(26,92,255,.4);}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(26,92,255,.5);}
.hero-trust{display:flex;flex-wrap:wrap;gap:26px;font-size:13.5px;color:rgba(255,255,255,.82);}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;}
.hero-trust svg{flex-shrink:0;}

/* hero card side */
.hero-side{position:relative;}
.hero-stat-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.24);border-radius:22px;padding:28px;backdrop-filter:blur(14px);box-shadow:0 24px 60px rgba(0,0,0,.25);}
.hero-stat-card h4{font-size:15px;font-weight:700;letter-spacing:.05em;color:rgba(255,255,255,.75);margin-bottom:20px;display:flex;align-items:center;gap:9px;}
.hero-stat-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.hero-stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:16px;}
.hero-stat b{display:block;font-size:26px;font-weight:900;letter-spacing:-.02em;background:linear-gradient(100deg,#7ff6ee,#c7dcff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-stat small{font-size:12.5px;color:rgba(255,255,255,.72);display:block;margin-top:2px;}

/* ===== DATA STRIP ===== */
.strip{position:relative;margin-top:-40px;z-index:5;}
.strip-inner{background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:36px 30px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border:1px solid var(--c-line);}
.strip-item{text-align:center;padding:8px 10px;position:relative;}
.strip-item:not(:last-child)::after{content:"";position:absolute;right:-10px;top:15%;height:70%;width:1px;background:var(--c-line);}
.strip-item b{display:block;font-size:clamp(26px,3vw,36px);font-weight:900;letter-spacing:-.02em;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;}
.strip-item span{font-size:14px;color:var(--c-muted);font-weight:600;}

/* ===== CARDS ===== */
.grid{display:grid;gap:24px;}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.g2{grid-template-columns:repeat(2,1fr);}
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:30px 26px;transition:transform .28s,box-shadow .28s,border-color .28s;position:relative;overflow:hidden;}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform .35s;}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent;}
.card:hover::before{transform:scaleX(1);}
.card-ico{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(26,92,255,.12),rgba(0,212,200,.14));margin-bottom:18px;color:var(--c-primary);}
.card h3{font-size:18px;font-weight:800;margin-bottom:10px;color:var(--c-ink);}
.card p{font-size:14.5px;color:var(--c-muted);line-height:1.8;}
.card .tag-row{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.mini-tag{font-size:12px;font-weight:600;color:var(--c-primary);background:rgba(26,92,255,.08);padding:4px 11px;border-radius:100px;}

/* feature big card w/ image */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.showcase-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--c-line);}
.showcase-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.showcase-media:hover img{transform:scale(1.04);}
.showcase-text h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:16px;line-height:1.3;}
.showcase-text p{color:var(--c-muted);font-size:15.5px;line-height:1.9;margin-bottom:22px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink2);margin-bottom:14px;font-weight:500;}
.check-list .ck{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:rgba(0,212,200,.15);display:flex;align-items:center;justify-content:center;color:#008f86;font-size:13px;font-weight:900;margin-top:2px;}

/* flow steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step;}
.step{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px 18px;text-align:center;position:relative;transition:transform .28s,box-shadow .28s;}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.step-num{width:46px;height:46px;margin:0 auto 14px;border-radius:50%;background:var(--grad-accent);color:#fff;font-weight:900;font-size:18px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(26,92,255,.3);}
.step h4{font-size:15.5px;font-weight:800;margin-bottom:8px;}
.step p{font-size:13px;color:var(--c-muted);line-height:1.7;}

/* comparison table */
.table-wrap{overflow-x:auto;border-radius:var(--r-md);border:1px solid var(--c-line);background:#fff;box-shadow:var(--shadow-sm);-webkit-overflow-scrolling:touch;}
table{width:100%;border-collapse:collapse;min-width:720px;}
thead th{background:linear-gradient(120deg,#0d2a72,#1447b8);color:#fff;font-size:14.5px;font-weight:700;padding:18px 16px;text-align:left;white-space:nowrap;}
thead th.hl-col{background:linear-gradient(120deg,#1a5cff,#00c9d4);}
tbody td{padding:16px;font-size:14px;color:var(--c-ink2);border-bottom:1px solid var(--c-line);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:rgba(26,92,255,.035);}
td.hl-col{background:rgba(0,212,200,.05);font-weight:600;color:var(--c-ink);}
.yes{color:#00994d;font-weight:700;}
.no{color:#b0b8cc;}
.rate-box{display:flex;align-items:center;gap:16px;justify-content:center;flex-wrap:wrap;padding:8px 0;}
.stars{color:#ffb300;font-size:22px;letter-spacing:2px;}
.score{font-size:14px;color:var(--c-muted);font-weight:600;}
.score b{color:var(--c-primary);font-size:22px;}

/* reviews */
.review-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;transition:transform .28s,box-shadow .28s;}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.review-head{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.avatar{width:48px;height:48px;border-radius:50%;background:var(--grad-accent);color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.review-head b{display:block;font-size:15.5px;font-weight:800;}
.review-head small{font-size:12.5px;color:var(--c-muted);}
.review-stars{color:#ffb300;font-size:14px;margin-bottom:10px;letter-spacing:1px;}
.review-card p{font-size:14.5px;color:var(--c-ink2);line-height:1.85;}

/* cases */
.case-card{border-radius:var(--r-md);overflow:hidden;background:#fff;border:1px solid var(--c-line);transition:transform .28s,box-shadow .28s;}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.case-media{overflow:hidden;aspect-ratio:16/10;background:var(--c-bg);}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.case-card:hover .case-media img{transform:scale(1.06);}
.case-body{padding:22px;}
.case-body h4{font-size:16.5px;font-weight:800;margin-bottom:8px;}
.case-body p{font-size:13.5px;color:var(--c-muted);line-height:1.75;}
.case-meta{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap;}
.case-meta span{font-size:12px;font-weight:600;color:var(--c-primary);background:rgba(26,92,255,.08);padding:4px 10px;border-radius:100px;}

/* token price */
.token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.token-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:30px 26px;transition:transform .28s,box-shadow .28s;}
.token-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);}
.token-card .price{font-size:34px;font-weight:900;color:var(--c-primary);letter-spacing:-.02em;line-height:1.1;}
.token-card .price small{font-size:15px;font-weight:600;color:var(--c-muted);}
.token-card ul{margin-top:18px;}
.token-card li{font-size:14px;color:var(--c-ink2);padding:7px 0 7px 24px;position:relative;}
.token-card li::before{content:"✓";position:absolute;left:0;color:#00bfc4;font-weight:900;}
.token-tip{font-size:13px;color:var(--c-muted);text-align:center;margin-top:24px;}

/* tags cloud */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.tag-cloud span{font-size:14px;font-weight:600;color:var(--c-ink2);background:#fff;border:1px solid var(--c-line);padding:9px 18px;border-radius:100px;transition:.25s;cursor:default;}
.tag-cloud span:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-3px);box-shadow:var(--shadow-sm);}

/* timeline */
.timeline{position:relative;padding-left:8px;}
.timeline::before{content:"";position:absolute;left:26px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--c-primary),var(--c-accent));}
.tl-item{position:relative;padding-left:64px;margin-bottom:34px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{position:absolute;left:16px;top:4px;width:22px;height:22px;border-radius:50%;background:#fff;border:4px solid var(--c-primary);box-shadow:0 0 0 6px rgba(26,92,255,.1);}
.tl-item h4{font-size:17px;font-weight:800;margin-bottom:6px;}
.tl-item p{font-size:14.5px;color:var(--c-muted);line-height:1.8;}

/* network */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.net-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:22px 18px;text-align:center;transition:.25s;}
.net-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:transparent;}
.net-item b{display:block;font-size:16px;font-weight:800;margin-bottom:4px;}
.net-item span{font-size:13px;color:var(--c-muted);}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .25s,border-color .25s;}
.faq-item.open{box-shadow:var(--shadow-sm);border-color:rgba(26,92,255,.35);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 26px;text-align:left;font-size:16px;font-weight:700;color:var(--c-ink);transition:color .2s;}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:rgba(26,92,255,.1);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:transform .3s,background .3s;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a-inner{padding:0 26px 24px;font-size:14.5px;color:var(--c-muted);line-height:1.9;}

/* articles */
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.article-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px;transition:transform .28s,box-shadow .28s;display:flex;flex-direction:column;}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.article-card .a-tag{font-size:12px;font-weight:700;color:var(--c-accent2);background:rgba(255,106,61,.1);padding:4px 12px;border-radius:100px;align-self:flex-start;margin-bottom:14px;}
.article-card h4{font-size:16px;font-weight:800;line-height:1.5;margin-bottom:10px;}
.article-card p{font-size:13.5px;color:var(--c-muted);line-height:1.75;flex:1;}
.article-card .a-more{margin-top:16px;font-size:14px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}

/* form */
.form-section{background:var(--grad-hero);color:#fff;position:relative;overflow:hidden;}
.form-section::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 20%,rgba(0,212,200,.28),transparent 45%);pointer-events:none;}
.form-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.form-intro h2{font-size:clamp(26px,3.2vw,38px);font-weight:900;line-height:1.28;margin-bottom:18px;}
.form-intro p{font-size:15.5px;color:rgba(255,255,255,.82);line-height:1.9;margin-bottom:28px;}
.contact-items{display:flex;flex-direction:column;gap:14px;}
.contact-item{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:14px 18px;backdrop-filter:blur(6px);}
.contact-item svg{flex-shrink:0;color:var(--c-accent);}
.contact-item b{font-size:13px;color:rgba(255,255,255,.65);font-weight:600;display:block;}
.contact-item span{font-size:15px;font-weight:700;}
.form-card{background:#fff;border-radius:var(--r-lg);padding:38px 34px;box-shadow:var(--shadow-lg);color:var(--c-ink);}
.form-card h3{font-size:20px;font-weight:800;margin-bottom:6px;}
.form-card .f-sub{font-size:13.5px;color:var(--c-muted);margin-bottom:24px;}
.fg{margin-bottom:18px;}
.fg label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--c-ink2);}
.fg label .req{color:var(--c-accent2);}
.fg input,.fg select,.fg textarea{width:100%;padding:13px 16px;border:1.5px solid var(--c-line);border-radius:10px;font-size:14.5px;color:var(--c-ink);background:#fbfcff;transition:border-color .2s,box-shadow .2s;}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,92,255,.12);background:#fff;}
.fg textarea{resize:vertical;min-height:100px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-submit{width:100%;padding:16px;border-radius:100px;background:var(--grad-accent);color:#fff;font-size:16px;font-weight:800;box-shadow:0 12px 30px rgba(26,92,255,.35);transition:transform .2s,box-shadow .2s;}
.form-submit:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(26,92,255,.45);}
.form-note{font-size:12.5px;color:var(--c-muted);text-align:center;margin-top:14px;}

/* qr */
.qr-block{display:flex;align-items:center;gap:20px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:18px;margin-top:22px;}
.qr-block img{width:120px;height:120px;object-fit:cover;border-radius:10px;background:#fff;padding:6px;}

/* footer */
.footer{background:#0a1230;color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .ai-page-logo{max-height:38px;margin-bottom:16px;filter:brightness(0) invert(1);}
.footer-brand p{font-size:14px;line-height:1.85;max-width:320px;color:rgba(255,255,255,.6);}
.footer h5{font-size:15px;font-weight:800;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s;}
.footer-links a:hover{color:var(--c-accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-accent);}
.friend-links{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;}
.friend-links a{color:rgba(255,255,255,.55);}
.friend-links a:hover{color:var(--c-accent);}
.footer-friend{padding:0 0 22px;}
.footer-friend h5{font-size:14px;color:rgba(255,255,255,.55);margin-bottom:12px;font-weight:700;}

/* float */
.float-cs{position:fixed;right:22px;bottom:88px;z-index:900;display:flex;flex-direction:column;gap:12px;}
.float-btn{width:54px;height:54px;border-radius:50%;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;color:var(--c-primary);transition:transform .2s,box-shadow .2s;position:relative;}
.float-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:var(--shadow-lg);}
.float-btn.primary{background:var(--grad-accent);color:#fff;border-color:transparent;}
.float-tip{position:absolute;right:66px;top:50%;transform:translateY(-50%);background:var(--c-ink);color:#fff;font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:8px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s;}
.float-btn:hover .float-tip{opacity:1;}
.to-top{position:fixed;right:22px;bottom:24px;z-index:900;width:54px;height:54px;border-radius:50%;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;color:var(--c-ink2);opacity:0;visibility:hidden;transition:.3s;}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{color:var(--c-primary);transform:translateY(-4px);}

/* reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}

/* responsive */
@media(max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-side{max-width:520px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:repeat(3,1fr);}
  .g4{grid-template-columns:repeat(2,1fr);}
  .token-grid{grid-template-columns:1fr;}
  .network-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:900px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 20px;border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-md);max-height:calc(100vh - 72px);overflow-y:auto;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 12px;border-radius:10px;font-size:15px;}
  .nav-cta{margin-top:8px;justify-content:center;}
  .nav-toggle{display:flex;}
  .nav-cta.desk{display:none;}
  .nav-inner{position:relative;}
  .g3,.g2,.article-list{grid-template-columns:1fr;}
  .showcase{grid-template-columns:1fr;gap:28px;}
  .form-wrap{grid-template-columns:1fr;gap:36px;}
  .strip-inner{grid-template-columns:repeat(2,1fr);gap:22px;}
  .strip-item:nth-child(2)::after{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:640px){
  .section{padding:56px 0;}
  .hero{padding:66px 0 76px;}
  .container{padding:0 18px;}
  .hero-actions .btn{flex:1;min-width:140px;padding:14px 20px;font-size:15px;}
  .strip{margin-top:-30px;}
  .strip-inner{padding:26px 18px;}
  .strip-item b{font-size:26px;}
  .g4,.steps,.token-grid,.network-grid{grid-template-columns:1fr;}
  .strip-item::after{display:none !important;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:28px 22px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .float-cs{right:14px;bottom:78px;}
  .to-top{right:14px;bottom:16px;}
  .float-cs .float-btn,.to-top{width:48px;height:48px;}
  .qr-block{flex-direction:column;text-align:center;align-items:center;}
  .table-wrap table{min-width:640px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}