:root{
  --c1:#6c5ce7;--c2:#00b8d9;--c3:#ff6b9d;--c4:#ffa62b;--c5:#20c997;
  --ink:#1a2138;--ink2:#4a5471;--ink3:#7c86a2;--line:#e8ecf6;
  --bg:#ffffff;--bg2:#f6f8ff;--radius:18px;
  --shadow:0 10px 30px rgba(40,50,120,.08);
  --shadow-h:0 18px 44px rgba(60,70,160,.16);
  --grad:linear-gradient(120deg,#6c5ce7 0%,#00b8d9 55%,#20c997 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.72;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 22px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
section{padding:88px 0;position:relative}
.sec-head{max-width:820px;margin:0 auto 52px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--c1);background:linear-gradient(120deg,rgba(108,92,231,.1),rgba(0,184,217,.1));padding:7px 18px;border-radius:100px;margin-bottom:18px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c1)}
h2.sec-title{font-size:clamp(24px,3.2vw,38px);line-height:1.3;font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
.sec-sub{color:var(--ink3);font-size:15.5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:100px;font-weight:700;font-size:15px;border:none;cursor:pointer;transition:.28s cubic-bezier(.4,0,.2,1);white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(80,90,220,.28)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(80,90,220,.4)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-3px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(-1px) scale(.99)}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.3s}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(40,50,120,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-wrap img{height:38px;width:auto;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{font-size:14.5px;font-weight:600;color:var(--ink2);padding:9px 11px;border-radius:8px;transition:.25s;position:relative;white-space:nowrap}
.nav-links a:hover{color:var(--c1);background:rgba(108,92,231,.07)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta .btn{padding:10px 20px;font-size:14px}
.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;justify-content:center;align-items:center;border:none;background:#f2f4fb;border-radius:11px;cursor:pointer}
.burger span{width:20px;height:2.2px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7.2px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.2px) rotate(-45deg)}
.mobile-menu{position:fixed;top:72px;left:0;right:0;background:#fff;z-index:999;max-height:0;overflow:hidden;transition:max-height .4s ease;box-shadow:0 18px 30px rgba(40,50,120,.1)}
.mobile-menu.open{max-height:calc(100vh - 72px);overflow-y:auto}
.mobile-menu .mm-inner{padding:14px 22px 26px;display:grid;gap:4px}
.mobile-menu a{display:block;padding:12px 14px;border-radius:10px;font-weight:600;color:var(--ink2);font-size:15px}
.mobile-menu a:hover{background:var(--bg2);color:var(--c1)}
.mobile-menu .mm-btn{margin-top:10px;background:var(--grad);color:#fff;text-align:center}

/* hero */
.hero{position:relative;padding:150px 0 96px;overflow:hidden;background:
  radial-gradient(circle at 8% 12%,rgba(108,92,231,.14),transparent 42%),
  radial-gradient(circle at 92% 8%,rgba(0,184,217,.14),transparent 40%),
  radial-gradient(circle at 60% 96%,rgba(255,107,157,.12),transparent 46%),
  linear-gradient(180deg,#fbfcff 0%,#f4f7ff 100%)}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(108,92,231,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(108,92,231,.04) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 82%);pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none;animation:float 14s ease-in-out infinite}
.blob.b1{width:320px;height:320px;background:rgba(108,92,231,.35);top:-90px;left:-70px}
.blob.b2{width:280px;height:280px;background:rgba(0,184,217,.32);top:60px;right:-80px;animation-delay:-4s}
.blob.b3{width:240px;height:240px;background:rgba(255,166,43,.28);bottom:-90px;left:44%;animation-delay:-8s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(20px,-26px) scale(1.08)}}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);padding:8px 18px;border-radius:100px;font-size:13.5px;font-weight:700;color:var(--ink2);box-shadow:var(--shadow);margin-bottom:22px}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--c5);box-shadow:0 0 0 0 rgba(32,201,151,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px rgba(32,201,151,0)}100%{box-shadow:0 0 0 0 rgba(32,201,151,0)}}
h1{font-size:clamp(30px,4.1vw,50px);line-height:1.22;font-weight:900;letter-spacing:-1px;margin-bottom:20px}
.hero-desc{font-size:16.5px;color:var(--ink2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:560px}
.hstat{background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:14px;padding:14px 16px;transition:.3s}
.hstat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.hstat b{display:block;font-size:23px;font-weight:900;letter-spacing:-.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hstat span{font-size:12.5px;color:var(--ink3);font-weight:600}
.hero-visual{position:relative}
.orb-card{background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.9);backdrop-filter:blur(16px);border-radius:22px;padding:22px;box-shadow:0 24px 60px rgba(60,70,160,.16)}
.orb-card h4{font-size:15px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.mini-chip{font-size:11.5px;font-weight:700;color:var(--c5);background:rgba(32,201,151,.12);padding:4px 11px;border-radius:100px}
.orb-item{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:12px;background:#fff;margin-bottom:9px;border:1px solid var(--line);transition:.3s}
.orb-item:hover{transform:translateX(6px);border-color:var(--c1);box-shadow:var(--shadow)}
.orb-dot{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px;flex-shrink:0}
.orb-item p{font-size:13.5px;font-weight:700}
.orb-item small{font-size:11.5px;color:var(--ink3);display:block;font-weight:500}
.orb-bar{margin-top:6px}
.orb-bar .track{height:7px;border-radius:100px;background:#eef1fa;overflow:hidden}
.orb-bar .fill{height:100%;border-radius:100px;background:var(--grad);animation:grow 2.2s ease forwards;transform-origin:left}
@keyframes grow{from{transform:scaleX(.15)}to{transform:scaleX(1)}}

/* reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.68,0,1)}
.reveal.in{opacity:1;transform:none}

/* tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag{font-size:13px;font-weight:600;padding:8px 16px;border-radius:100px;background:#fff;border:1px solid var(--line);color:var(--ink2);transition:.25s;cursor:default}
.tag:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:var(--shadow)}

/* cards */
.grid{display:grid;gap:22px}
.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(--line);border-radius:var(--radius);padding:28px 24px;transition:.32s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:.35s}
.card:hover{transform:translateY(-7px);box-shadow:var(--shadow-h);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card-ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:22px;color:#fff}
.card h3{font-size:17.5px;font-weight:800;margin-bottom:9px}
.card p{font-size:14px;color:var(--ink3);line-height:1.75}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-media{position:relative;border-radius:22px;overflow:hidden;box-shadow:0 22px 50px rgba(60,70,160,.16)}
.about-media img{width:100%;height:100%;object-fit:cover;transition:.5s}
.about-media:hover img{transform:scale(1.04)}
.about-list{display:grid;gap:14px;margin-top:26px}
.about-li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);padding:16px 18px;border-radius:14px;transition:.28s}
.about-li:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:transparent}
.about-li .num{width:30px;height:30px;border-radius:9px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0}
.about-li b{display:block;font-size:15px;margin-bottom:3px}
.about-li span{font-size:13.5px;color:var(--ink3)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 22px;position:relative;transition:.32s}
.step:hover{transform:translateY(-7px);box-shadow:var(--shadow-h);border-color:transparent}
.step-num{font-size:38px;font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
.step h4{font-size:16.5px;margin-bottom:8px;font-weight:800}
.step p{font-size:13.5px;color:var(--ink3)}

/* table */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
thead th{background:linear-gradient(120deg,rgba(108,92,231,.09),rgba(0,184,217,.09));font-weight:800;color:var(--ink);font-size:14.5px;white-space:nowrap}
tbody tr{transition:.2s}
tbody tr:hover{background:#fafbff}
tbody tr:last-child td{border-bottom:none}
td.hl{font-weight:800;color:var(--c1)}
.score-badge{display:inline-flex;align-items:center;gap:6px;background:var(--grad);color:#fff;font-weight:800;padding:5px 15px;border-radius:100px;font-size:13.5px}
.stars{color:#ffa62b;letter-spacing:2px;font-size:15px}

/* price */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price{background:#fff;border:1px solid var(--line);border-radius:22px;padding:32px 26px;transition:.32s;position:relative;overflow:hidden}
.price:hover{transform:translateY(-8px);box-shadow:var(--shadow-h);border-color:transparent}
.price.feat{background:linear-gradient(160deg,#1a2138,#2b3563);color:#fff;border-color:transparent;box-shadow:0 20px 46px rgba(30,40,100,.32)}
.price.feat::before{content:"热门推荐";position:absolute;top:18px;right:-34px;background:var(--c3);color:#fff;font-size:11.5px;font-weight:800;padding:5px 42px;transform:rotate(45deg)}
.price h4{font-size:18px;font-weight:800;margin-bottom:6px}
.price .pt{font-size:13.5px;color:var(--ink3);margin-bottom:20px}
.price.feat .pt{color:rgba(255,255,255,.66)}
.price .pv{font-size:36px;font-weight:900;letter-spacing:-1px;line-height:1;margin-bottom:4px}
.price .pv small{font-size:14px;font-weight:600;color:var(--ink3)}
.price.feat .pv small{color:rgba(255,255,255,.6)}
.price ul{margin:20px 0 24px;display:grid;gap:11px}
.price li{font-size:13.5px;display:flex;gap:9px;align-items:flex-start;color:var(--ink2)}
.price.feat li{color:rgba(255,255,255,.82)}
.price li::before{content:"✓";color:var(--c5);font-weight:900;flex-shrink:0}
.price .btn{width:100%}

/* reviews */
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:.32s;display:flex;flex-direction:column;gap:14px}
.review:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:transparent}
.rev-top{display:flex;align-items:center;gap:12px}
.avatar{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;flex-shrink:0}
.rev-top b{font-size:14.5px;display:block}
.rev-top small{font-size:12.5px;color:var(--ink3)}
.review p{font-size:14px;color:var(--ink2);line-height:1.78;flex:1}

/* cases */
.case{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.35s;background:#fff;border:1px solid var(--line)}
.case:hover{transform:translateY(-8px);box-shadow:var(--shadow-h)}
.case-img{position:relative;overflow:hidden;aspect-ratio:16/10;background:#eef1fa}
.case-img img{width:100%;height:100%;object-fit:cover;transition:.55s}
.case:hover .case-img img{transform:scale(1.06)}
.case-img.sq{aspect-ratio:1/1}
.case-body{padding:20px 22px}
.case-body span{font-size:12px;font-weight:800;color:var(--c2);letter-spacing:.5px}
.case-body h4{font-size:16.5px;margin:6px 0 8px;font-weight:800}
.case-body p{font-size:13.5px;color:var(--ink3)}

/* timeline */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--c1),var(--c2),var(--c5))}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-28px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--c1);box-shadow:0 0 0 4px rgba(108,92,231,.12)}
.tl-item b{font-size:15.5px;display:block;margin-bottom:4px}
.tl-item span{font-size:13.5px;color:var(--ink3)}

/* network */
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.net{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center;transition:.3s}
.net:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:transparent}
.net b{display:block;font-size:15px;margin-bottom:5px}
.net span{font-size:12.5px;color:var(--ink3)}
.net .dot{width:44px;height:44px;border-radius:12px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:15px}

/* faq */
.faq{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.28s}
.faq-item.open{border-color:var(--c1);box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:19px 22px;font-size:15.5px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;font-family:inherit}
.faq-q .ic{width:26px;height:26px;flex-shrink:0;border-radius:50%;background:var(--bg2);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;color:var(--c1);transition:.3s}
.faq-item.open .faq-q .ic{background:var(--grad);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--ink3);line-height:1.8}

/* articles */
.article{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:.3s;align-items:flex-start}
.article:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:transparent}
.article .idx{width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.article b{font-size:15px;display:block;margin-bottom:3px}
.article span{font-size:13px;color:var(--ink3)}
.article a{color:var(--c1);font-size:13px;font-weight:700}

/* form */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.form-side h3{font-size:26px;font-weight:900;margin-bottom:14px;line-height:1.32}
.form-side p{color:var(--ink3);font-size:14.5px;margin-bottom:22px}
.contact-list{display:grid;gap:12px}
.contact-item{display:flex;gap:13px;align-items:center;background:#fff;border:1px solid var(--line);padding:14px 16px;border-radius:13px;transition:.28s}
.contact-item:hover{transform:translateX(5px);box-shadow:var(--shadow);border-color:transparent}
.contact-item .ci{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,rgba(108,92,231,.14),rgba(0,184,217,.14));display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.contact-item b{font-size:14px;display:block}
.contact-item span{font-size:12.5px;color:var(--ink3);word-break:break-all}
.form-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px 30px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--ink2)}
.field label .req{color:var(--c3)}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:11px;font-size:14px;font-family:inherit;color:var(--ink);background:#fafbff;transition:.24s;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c1);background:#fff;box-shadow:0 0 0 4px rgba(108,92,231,.1)}
.field textarea{resize:vertical;min-height:110px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-card .btn{width:100%;margin-top:6px}
.form-note{font-size:12px;color:var(--ink3);text-align:center;margin-top:12px}

/* footer */
footer{background:#121836;color:rgba(255,255,255,.72);padding:64px 0 0;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);width:640px;height:280px;background:radial-gradient(ellipse,rgba(108,92,231,.34),transparent 70%);pointer-events:none}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;position:relative}
.foot-brand img{height:38px;margin-bottom:16px;background:#fff;padding:6px 10px;border-radius:9px}
.foot-brand p{font-size:13.5px;line-height:1.8;margin-bottom:16px;color:rgba(255,255,255,.6)}
.foot-grid h5{color:#fff;font-size:15px;margin-bottom:18px;font-weight:800}
.foot-grid ul{display:grid;gap:10px}
.foot-grid ul li a,.foot-grid ul li{font-size:13.5px;color:rgba(255,255,255,.62);transition:.24s;word-break:break-all}
.foot-grid ul li a:hover{color:#fff;padding-left:4px}
.foot-qr{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px;text-align:center}
.foot-qr img{width:118px;height:118px;object-fit:cover;margin:0 auto 10px;border-radius:10px;background:#fff}
.foot-qr span{font-size:12.5px;color:rgba(255,255,255,.66)}
.foot-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.09);padding:22px 0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:rgba(255,255,255,.5)}
.foot-bottom a{color:rgba(255,255,255,.7)}
.foot-bottom a:hover{color:#fff}

/* float */
.float-srv{position:fixed;right:20px;bottom:26px;z-index:1200;display:flex;flex-direction:column;gap:12px}
.fs-btn{width:52px;height:52px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.28s;position:relative}
.fs-btn:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.fs-btn svg{width:24px;height:24px;fill:var(--c1)}
.fs-tip{position:absolute;right:64px;top:50%;transform:translateY(-50%) scale(.9);background:var(--ink);color:#fff;font-size:12.5px;white-space:nowrap;padding:7px 13px;border-radius:8px;opacity:0;pointer-events:none;transition:.25s}
.fs-btn:hover .fs-tip{opacity:1;transform:translateY(-50%) scale(1)}
.qr-pop{position:absolute;right:66px;bottom:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:var(--shadow-h);opacity:0;visibility:hidden;transform:scale(.9);transition:.28s;width:170px}
.qr-pop.show{opacity:1;visibility:visible;transform:scale(1)}
.qr-pop img{width:100%;border-radius:8px;margin-bottom:6px}
.qr-pop span{display:block;text-align:center;font-size:12px;color:var(--ink3)}
#toTop{opacity:0;visibility:hidden}
#toTop.show{opacity:1;visibility:visible}
#toTop svg{fill:var(--c2)}

/* responsive */
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:560px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links a{padding:9px 8px;font-size:13.6px}
}
@media(max-width:900px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .burger{display:flex}
  .about-grid,.form-wrap{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .price-grid,.g3,.g2{grid-template-columns:1fr}
  section{padding:66px 0}
  .hero{padding:126px 0 72px}
}
@media(max-width:640px){
  .container{padding:0 16px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .g4,.net-grid,.field-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;text-align:center}
  .float-srv{right:12px;bottom:16px}
  .fs-btn{width:48px;height:48px}
  .form-card{padding:26px 20px}
  .nav-cta .btn-primary{display:none}
  th,td{padding:13px 14px;font-size:13px}
}