/* WhatPay 官网 — 深色科技主题(继承原站设计语言,扩展四产品线,无 emoji,纯 SVG/CSS 图形) */
:root{
  --bg:#0e1830; --bg2:#16234a; --card:#1a2750; --card2:#1f2e5a;
  --border:rgba(120,165,245,.16);
  --primary:#4f8ef7; --primary2:#6366f1; --teal:#22d3ee; --green:#10b981;
  --text:#e8f0fe; --muted:#7a90b0;
  --grad1:linear-gradient(135deg,#4f8ef7,#6366f1);
  --grad2:linear-gradient(135deg,#22d3ee,#10b981);
  --maxw:1200px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Helvetica Neue',Arial,sans-serif;
  --mono:'SF Mono','Fira Code',ui-monospace,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
img{display:block;max-width:100%;}
[hidden]{display:none!important;}

h1{font-size:clamp(2.4rem,5vw,4rem);font-weight:800;letter-spacing:-.02em;line-height:1.15;}
h2{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:700;letter-spacing:-.01em;}
h3{font-size:1.2rem;font-weight:700;}
p{color:var(--muted);font-size:1rem;line-height:1.8;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.grad-text{background:var(--grad1);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.grad-text-teal{background:var(--grad2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);background:rgba(79,142,247,.1);border:1px solid rgba(79,142,247,.2);padding:5px 14px;border-radius:20px;margin-bottom:20px;}
.section{padding:100px 0;}
.section-header{text-align:center;max-width:680px;margin:0 auto 64px;}
.section-header p{margin-top:16px;font-size:1.05rem;}
.divider{width:48px;height:3px;background:var(--grad1);border-radius:2px;margin:20px auto 0;}

/* SVG 图标统一(替代 emoji) */
.svgico{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.svgico.blue{stroke:var(--primary);}

/* 币/链徽标:真实 logo 铺满;img 加载失败自动 remove,露出底层品牌色字母(永不裂图,无表情) */
.cbadge{position:relative;overflow:hidden;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;color:#fff;flex-shrink:0;}
.cbadge img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.tx-icon{position:relative;overflow:hidden;}
.tx-icon img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.pill-logo{width:15px;height:15px;border-radius:50%;margin-right:5px;}
.chain-pill{display:inline-flex;align-items:center;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:all .2s;}
.btn-primary{background:var(--grad1);color:#fff;box-shadow:0 4px 24px rgba(79,142,247,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(79,142,247,.45);}
.btn-outline{background:transparent;color:var(--text);border:1.5px solid rgba(255,255,255,.2);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:9px 20px;font-size:13px;}

/* 顶栏通知 */
.notice-bar{background:linear-gradient(90deg,rgba(79,142,247,.15),rgba(99,102,241,.15));border-bottom:1px solid var(--border);padding:10px 24px;text-align:center;font-size:13px;color:var(--muted);}
.notice-bar a{color:var(--primary);font-weight:600;}

/* 导航 + mega menu */
nav.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 24px;backdrop-filter:blur(20px);background:rgba(6,11,20,.85);border-bottom:1px solid var(--border);transition:box-shadow .2s;}
.nav-inner{max-width:var(--maxw);margin:0 auto;height:68px;display:flex;align-items:center;gap:28px;}
.nav-logo img{height:24px;width:auto;}
.nav-links{display:flex;gap:2px;flex:1;}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;gap:5px;padding:8px 14px;border-radius:8px;color:var(--muted);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link .caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg);margin-top:-3px;opacity:.6;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.lang-switch{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;}
.lang-switch button{border:0;background:transparent;color:var(--muted);font-size:13px;font-weight:600;padding:6px 11px;cursor:pointer;}
.lang-switch button.active{background:var(--grad1);color:#fff;}

.megamenu{position:absolute;top:calc(100% + 12px);left:0;min-width:680px;background:var(--card);border:1px solid var(--border);border-radius:16px;box-shadow:0 24px 64px rgba(0,0,0,.5);padding:20px;display:none;grid-template-columns:repeat(3,1fr);gap:10px;}
.nav-item.open .megamenu{display:grid;}
.megamenu.simple{min-width:260px;grid-template-columns:1fr;}
.mm-head{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--primary);margin:4px 10px 8px;}
.mm-link{display:block;padding:9px 10px;border-radius:9px;transition:background .15s;}
.mm-link:hover{background:rgba(255,255,255,.04);}
.mm-link b{display:block;font-size:14px;font-weight:600;color:var(--text);}
.mm-link span{display:block;font-size:12px;color:var(--muted);margin-top:1px;}
.nav-burger{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--border);background:transparent;border-radius:8px;cursor:pointer;align-items:center;justify-content:center;}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-burger span::before{content:"";position:absolute;top:-6px;}
.nav-burger span::after{content:"";position:absolute;top:6px;}

/* HERO */
#hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:96px;padding-bottom:60px;}
.hero-bg{position:absolute;inset:0;pointer-events:none;}
.hero-glow{position:absolute;width:800px;height:800px;border-radius:50%;background:radial-gradient(circle,rgba(79,142,247,.15),transparent 70%);top:-200px;right:-200px;}
.hero-glow2{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(99,102,241,.1),transparent 70%);bottom:-100px;left:-100px;}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(79,142,247,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(79,142,247,.04) 1px,transparent 1px);background-size:60px 60px;}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:1;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal);font-weight:600;margin-bottom:20px;}
.eyebrow::before{content:'';width:20px;height:2px;background:var(--teal);border-radius:2px;}
.hero-title{margin-bottom:24px;}
.hero-desc{font-size:1.1rem;color:var(--muted);margin-bottom:36px;max-width:480px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.hero-trust{margin-top:44px;display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;flex-wrap:wrap;}
.trust-badge{padding:5px 12px;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid var(--border);font-size:12px;font-weight:600;color:var(--muted);}

/* hero mockup 卡 */
.hero-visual{position:relative;}
.hero-card-main{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px;position:relative;overflow:hidden;}
.hero-card-main::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(79,142,247,.05),transparent);pointer-events:none;}
.hcard-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hcard-title{font-size:13px;color:var(--muted);}
.hcard-badge{font-size:11px;font-weight:600;color:var(--green);background:rgba(16,185,129,.1);padding:3px 10px;border-radius:20px;}
.hcard-amount{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;margin-bottom:4px;}
.hcard-sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.chain-pills{display:flex;gap:8px;flex-wrap:wrap;}
.chain-pill{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:700;background:rgba(255,255,255,.05);border:1px solid var(--border);}
.tx-list{margin-top:18px;display:flex;flex-direction:column;gap:8px;}
.tx-item{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.03);border-radius:10px;padding:10px 14px;}
.tx-left{display:flex;align-items:center;gap:10px;}
.tx-icon{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;}
.tx-meta{font-size:12px;color:var(--muted);margin-top:1px;}
.tx-amount{font-size:14px;font-weight:700;color:var(--green);}
.hero-card-float{position:absolute;background:var(--card2);border:1px solid var(--border);border-radius:14px;padding:14px 18px;box-shadow:0 8px 32px rgba(0,0,0,.4);}
.hcf-1{top:-20px;right:-20px;min-width:150px;}
.hcf-2{bottom:14px;left:-30px;min-width:170px;}
.hcf-label{font-size:11px;color:var(--muted);margin-bottom:4px;}
.hcf-value{font-size:1.2rem;font-weight:800;}
.hcf-trend{font-size:11px;color:var(--green);display:flex;align-items:center;gap:5px;}

/* LOGOS belt */
#logos{padding:40px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);overflow:hidden;position:relative;}
#logos::before,#logos::after{content:'';position:absolute;top:0;bottom:0;width:100px;z-index:2;}
#logos::before{left:0;background:linear-gradient(90deg,var(--bg),transparent);}
#logos::after{right:0;background:linear-gradient(-90deg,var(--bg),transparent);}
.logos-track{display:flex;gap:48px;animation:scroll 30s linear infinite;width:max-content;align-items:center;}
.logos-track:hover{animation-play-state:paused;}
@keyframes scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.logo-item{font-size:14px;font-weight:700;color:var(--muted);white-space:nowrap;opacity:.6;letter-spacing:.05em;text-transform:uppercase;}
.logo-item:hover{opacity:1;color:var(--text);}

/* STATS */
#stats{padding:80px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);}
.stat-item{background:var(--bg);padding:40px 32px;text-align:center;}
.stat-num{font-size:2.8rem;font-weight:800;letter-spacing:-.03em;line-height:1;}
.stat-label{font-size:14px;color:var(--muted);margin-top:10px;}

/* 产品线 block(左文右 mockup,交替) */
.prod-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:84px 0;border-top:1px solid var(--border);}
.prod-block.reverse .prod-text{order:2;}
.prod-text h2{margin:12px 0 16px;}
.prod-text>p{margin-bottom:26px;}
.feature-list{display:flex;flex-direction:column;gap:14px;margin-bottom:30px;}
.fl-item{display:flex;align-items:flex-start;gap:12px;}
.fl-icon{width:24px;height:24px;border-radius:50%;background:var(--grad1);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px;}
.fl-icon svg{width:13px;height:13px;stroke:#fff;fill:none;stroke-width:2.4;}
.fl-item h4{font-size:14px;font-weight:600;margin-bottom:2px;}
.fl-item p{font-size:13px;margin:0;}
.prod-visual{position:relative;}
.visual-box{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px;overflow:hidden;position:relative;}
.visual-box::before{content:'';position:absolute;top:0;right:0;width:200px;height:200px;background:radial-gradient(circle,rgba(79,142,247,.08),transparent);pointer-events:none;}
.vb-label{font-size:13px;color:var(--muted);margin-bottom:16px;}
.chain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.chain-card{background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:12px;padding:16px;text-align:center;transition:all .2s;}
.chain-card:hover{border-color:var(--primary);background:rgba(79,142,247,.05);}
.chain-card .cbadge{margin:0 auto 8px;width:34px;height:34px;font-size:13px;}
.chain-name{font-size:12px;font-weight:700;}
.chain-tokens{font-size:11px;color:var(--muted);margin-top:2px;}

/* 手机钱包 mockup */
.phone{margin:0 auto;width:230px;background:var(--bg);border:1px solid var(--border);border-radius:28px;padding:14px;box-shadow:0 20px 60px rgba(0,0,0,.5);}
.phone-notch{width:80px;height:5px;background:var(--border);border-radius:3px;margin:2px auto 14px;}
.phone-bal{text-align:center;margin-bottom:14px;}
.phone-bal .lbl{font-size:11px;color:var(--muted);}
.phone-bal .amt{font-size:1.6rem;font-weight:800;}
.phone-actions{display:flex;justify-content:space-around;margin-bottom:14px;}
.pa{display:flex;flex-direction:column;align-items:center;gap:5px;font-size:10px;color:var(--muted);}
.pa-ic{width:36px;height:36px;border-radius:50%;background:rgba(79,142,247,.12);display:flex;align-items:center;justify-content:center;}
.pa-ic svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.8;}
.phone-asset{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.03);border-radius:10px;padding:9px 12px;margin-bottom:7px;}
.phone-asset .cbadge{width:28px;height:28px;font-size:11px;}
.phone-asset .nm{font-size:12px;font-weight:600;}
.phone-asset .vl{margin-left:auto;font-size:12px;font-weight:700;}

/* API 代码块 */
.api-demo{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:20px;font-family:var(--mono);font-size:12px;line-height:1.8;overflow:auto;}
.api-comment{color:var(--muted);} .api-key{color:#79c0ff;} .api-str{color:#a5d6ff;} .api-num{color:var(--teal);}
.api-res{margin-top:12px;border-top:1px solid var(--border);padding-top:12px;}

/* swap mockup */
.swap-box{background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:14px;padding:14px;}
.swap-row{display:flex;align-items:center;justify-content:space-between;padding:12px;background:var(--bg);border-radius:10px;}
.swap-row .tok{display:flex;align-items:center;gap:8px;font-weight:700;font-size:13px;}
.swap-row .val{font-size:16px;font-weight:800;}
.swap-arrow{width:32px;height:32px;border-radius:50%;background:var(--card2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin:-8px auto;position:relative;z-index:1;}
.swap-arrow svg{width:14px;height:14px;stroke:var(--primary);fill:none;stroke-width:2;}
.swap-route{margin-top:12px;font-size:11px;color:var(--muted);display:flex;justify-content:space-between;}
.swap-route b{color:var(--teal);}

/* SECURITY 环形图 */
#security{background:var(--bg2);}
.security-layout{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.sec-points{display:flex;flex-direction:column;gap:14px;margin:20px 0 0;}
.sec-point{display:flex;align-items:flex-start;gap:14px;font-size:14px;color:var(--text);}
.sec-dot{width:8px;height:8px;border-radius:50%;margin-top:8px;flex-shrink:0;}
.algo-row{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap;}
.algo-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 20px;text-align:center;}
.algo-card b{font-weight:700;color:var(--primary);font-size:14px;}
.algo-card div{font-size:11px;color:var(--muted);margin-top:2px;}
.security-diagram{display:flex;justify-content:center;align-items:center;}
.keyshards{position:relative;width:340px;height:340px;}
.ks-ring{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);border-radius:50%;border:1px dashed var(--border);}
.ks-ring-1{width:160px;height:160px;} .ks-ring-2{width:280px;height:280px;} .ks-ring-3{width:340px;height:340px;}
.ks-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:84px;height:84px;border-radius:50%;background:var(--grad1);display:flex;align-items:center;justify-content:center;box-shadow:0 0 40px rgba(79,142,247,.4);}
.ks-center svg{width:34px;height:34px;stroke:#fff;fill:none;stroke-width:1.6;}
.ks-node{position:absolute;width:64px;height:64px;border-radius:50%;background:var(--card2);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:var(--muted);gap:3px;}
.ks-node svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:1.8;}
.ks-tag{position:absolute;top:50%;left:50%;transform:translate(-50%,calc(-50% + 80px));}
.ks-tag span{font-size:11px;color:var(--primary);font-weight:700;background:rgba(79,142,247,.1);padding:4px 12px;border-radius:20px;white-space:nowrap;}

/* CHAINS */
.chains-row{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;margin-top:48px;}
.chain-big{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px 28px;text-align:center;min-width:150px;transition:all .25s;}
.chain-big:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 12px 40px rgba(79,142,247,.15);}
.chain-big .cbadge{margin:0 auto 10px;}
.chain-big-name{font-weight:700;font-size:15px;}
.chain-big-sub{font-size:12px;color:var(--muted);margin-top:4px;}
.chains-more{text-align:center;margin-top:24px;font-size:13px;color:var(--muted);}

/* WHY */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.why-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;transition:all .25s;}
.why-card:hover{border-color:rgba(79,142,247,.3);transform:translateY(-3px);}
.why-icon{width:48px;height:48px;border-radius:12px;background:var(--grad1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;}
.why-icon svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.7;}
.why-card h3{margin-bottom:10px;}

/* FLOW */
#flow{background:var(--bg2);}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:48px;}
.flow-steps::before{content:'';position:absolute;top:36px;left:calc(12.5% + 10px);right:calc(12.5% + 10px);height:1px;background:linear-gradient(90deg,var(--primary),var(--primary2),var(--teal),var(--green));}
.flow-step{text-align:center;position:relative;z-index:1;}
.flow-num{width:72px;height:72px;border-radius:50%;background:var(--card);border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem;font-weight:800;color:var(--primary);}
.flow-step h3{font-size:15px;margin-bottom:8px;} .flow-step p{font-size:13px;}

/* CTA */
#cta{padding:120px 0;position:relative;overflow:hidden;}
.cta-bg{position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 50%,rgba(79,142,247,.12),transparent);}
.cta-inner{text-align:center;position:relative;z-index:1;}
.cta-inner h2{margin-bottom:16px;} .cta-inner p{max-width:560px;margin:0 auto 36px;font-size:1.1rem;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* FOOTER */
footer{border-top:1px solid var(--border);padding:64px 0 32px;}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px;}
.footer-brand img{height:24px;margin-bottom:14px;}
.footer-brand p{font-size:13px;max-width:260px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.social-btn{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.06);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;}
.social-btn svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:1.8;}
.social-btn:hover{background:rgba(79,142,247,.15);border-color:var(--primary);}
.social-btn:hover svg{stroke:var(--primary);}
.footer-col h4{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--muted);margin-bottom:10px;transition:color .2s;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{border-top:1px solid var(--border);padding-top:28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-bottom p{font-size:13px;color:var(--muted);}
.footer-badges{display:flex;gap:10px;}
.fbadge{font-size:11px;font-weight:600;padding:4px 12px;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--muted);}

/* MODAL */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:500;align-items:center;justify-content:center;backdrop-filter:blur(6px);}
.modal-overlay.open{display:flex;}
.modal{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:40px;max-width:480px;width:90%;position:relative;box-shadow:0 24px 80px rgba(0,0,0,.6);}
.modal-close{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.08);border:none;color:var(--muted);width:32px;height:32px;border-radius:50%;font-size:16px;cursor:pointer;}
.modal label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:6px;}
.modal input,.modal select,.modal textarea{width:100%;background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:11px 14px;color:var(--text);font-size:14px;outline:none;font-family:inherit;transition:border-color .2s;margin-bottom:14px;}
.modal input:focus,.modal select:focus,.modal textarea:focus{border-color:var(--primary);}

/* ── 升级版 mockup:窗口外壳 ── */
.win{background:var(--bg);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,.5);}
.win-bar{display:flex;align-items:center;gap:7px;padding:10px 14px;background:var(--bg2);border-bottom:1px solid var(--border);}
.win-dot{width:10px;height:10px;border-radius:50%;}
.win-url{margin-left:6px;font-size:11px;color:var(--muted);font-family:var(--mono);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:4px 12px;flex:1;}

/* Custody — Console 后台 dashboard */
.dash{display:grid;grid-template-columns:118px 1fr;min-height:300px;}
.dash-side{background:var(--bg2);border-right:1px solid var(--border);padding:14px 9px;display:flex;flex-direction:column;gap:3px;}
.dash-side .di{font-size:11px;color:var(--muted);padding:7px 9px;border-radius:7px;display:flex;align-items:center;gap:7px;}
.dash-side .di.on{background:rgba(79,142,247,.12);color:var(--primary);font-weight:600;}
.dash-side .di svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.8;}
.dash-main{padding:16px;}
.dash-cards{display:flex;gap:10px;margin-bottom:12px;}
.dash-card{flex:1;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:12px;}
.dash-card .l{font-size:10px;color:var(--muted);}
.dash-card .v{font-size:1.15rem;font-weight:800;margin-top:3px;}
.dash-chart{display:flex;align-items:flex-end;gap:5px;height:56px;margin-bottom:12px;padding:10px;background:var(--bg2);border-radius:10px;}
.dash-bar{flex:1;background:var(--grad1);border-radius:3px 3px 0 0;opacity:.9;}
.dash-tx{background:var(--bg2);border-radius:10px;padding:6px 12px;}
.dash-tx .row{display:flex;align-items:center;gap:8px;padding:7px 0;font-size:11px;border-bottom:1px solid var(--border);}
.dash-tx .row:last-child{border-bottom:0;}
.dash-tx .row .cbadge{width:22px;height:22px;font-size:9px;}
.dash-tx .amt{margin-left:auto;color:var(--green);font-weight:700;}

/* Pocket — 手机升级 */
.ph-status{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);padding:0 6px 8px;}
.ph-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;padding:0 2px;}
.ph-top .nm{font-weight:800;font-size:14px;}
.ph-top svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:1.8;}
.phone-bal .chg{font-size:11px;margin-top:2px;}
.phone-asset .col{display:flex;flex-direction:column;line-height:1.3;}
.phone-asset .sub{font-size:9px;color:var(--muted);}
.phone-asset .right{margin-left:auto;text-align:right;line-height:1.3;}
.phone-asset .chg{font-size:9px;}
.up{color:var(--green);} .down{color:#f87171;}
.ph-tab{display:flex;justify-content:space-around;border-top:1px solid var(--border);margin-top:12px;padding-top:9px;}
.ph-tab .t{font-size:9px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:3px;}
.ph-tab .t.on{color:var(--primary);}
.ph-tab svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;}

/* Swap — 兑换 UI 升级 */
.swapui .sfield{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:12px;margin-bottom:2px;}
.swapui .stop{display:flex;align-items:center;justify-content:space-between;}
.swapui .tok{display:flex;align-items:center;gap:7px;font-weight:700;font-size:14px;background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:5px 12px 5px 6px;}
.swapui .tok .cbadge{width:24px;height:24px;font-size:10px;}
.swapui .amt{font-size:21px;font-weight:800;}
.swapui .sbal{font-size:10px;color:var(--muted);margin-top:7px;}
.swap-rate{font-size:11px;color:var(--muted);margin-top:12px;display:flex;justify-content:space-between;}
.swap-agg{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap;}
.agg-chip{font-size:10px;padding:3px 10px;border-radius:20px;background:var(--bg2);border:1px solid var(--border);color:var(--muted);}
.agg-chip.best{border-color:var(--green);color:var(--green);font-weight:600;}
.swap-cta{margin-top:13px;width:100%;background:var(--grad1);color:#fff;border:none;border-radius:10px;padding:12px;font-weight:700;font-size:13px;cursor:default;}

/* Developers — API tabs */
.api-tabs{display:flex;gap:4px;margin-bottom:10px;}
.api-tab{font-size:11px;padding:5px 12px;border-radius:7px;color:var(--muted);background:var(--bg2);}
.api-tab.on{background:rgba(79,142,247,.12);color:var(--primary);font-weight:600;}
.api-status{display:inline-block;font-size:10px;color:var(--green);background:rgba(16,185,129,.1);padding:2px 9px;border-radius:6px;}

/* ── MPC 运行机制流程 ── */
.mpc-flow{display:flex;align-items:stretch;gap:8px;margin-top:48px;}
.mpc-step{flex:1;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;position:relative;}
.mpc-ic{width:48px;height:48px;border-radius:12px;background:var(--grad1);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.mpc-ic svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.7;}
.mpc-no{position:absolute;top:20px;right:20px;font-size:13px;font-weight:800;color:var(--muted);letter-spacing:.05em;}
.mpc-step h4{font-size:15px;margin-bottom:8px;}
.mpc-step p{font-size:13px;}
.mpc-arrow{display:flex;align-items:center;color:var(--primary);flex-shrink:0;}
.mpc-arrow svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;}

/* RESPONSIVE */
@media(max-width:900px){
  .mpc-flow{flex-direction:column;}
  .mpc-arrow{transform:rotate(90deg);align-self:center;}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--card);border-bottom:1px solid var(--border);padding:12px;gap:2px;}
  .nav-links.mobile-open{display:flex;}
  .nav-links.mobile-open .megamenu{position:static;display:grid;grid-template-columns:1fr;min-width:0;box-shadow:none;border:0;background:transparent;padding:4px 0 8px 12px;}
  .nav-actions .btn{display:none;}
  .nav-burger{display:flex;}
  .hero-inner,.prod-block,.prod-block.reverse .prod-text,.security-layout{grid-template-columns:1fr;}
  .prod-block.reverse .prod-text{order:0;}
  .hero-visual,.prod-visual,.security-diagram{margin-top:24px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .why-grid,.flow-steps{grid-template-columns:1fr;}
  .flow-steps::before{display:none;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .section{padding:64px 0;}
}