*{margin:0;padding:0;box-sizing:border-box}
:root{
  --orange:#ff5b1a;
  --orange-deep:#e8440a;
  --orange-soft:#fff2eb;
  --ink:#1c1410;
  --ink-2:#4a3a31;
  --ink-3:#7d6a5e;
  --line:#f0ded3;
  --bg:#fffaf6;
  --card:#ffffff;
  --radius:16px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
section{scroll-margin-top:76px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,250,246,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:66px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:112px;height:auto}
.brand-text{font-weight:800;font-size:16px;letter-spacing:.5px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{
  font-size:14px;color:var(--ink-2);padding:8px 11px;border-radius:8px;
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--orange);background:var(--orange-soft)}
.nav-cta{
  flex-shrink:0;background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff!important;font-weight:700;font-size:14px;
  padding:9px 18px;border-radius:999px;
  box-shadow:0 6px 16px rgba(255,91,26,.28);
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,91,26,.36)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;
  flex-direction:column;gap:4px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.nav-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== Hero (no images) ===== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 82% 18%,rgba(255,145,80,.35),transparent 46%),
    radial-gradient(circle at 12% 84%,rgba(255,91,26,.22),transparent 44%),
    linear-gradient(160deg,#fff6ef 0%,#ffece0 52%,#fff8f2 100%);
  padding:76px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,91,26,.18),transparent 68%);
  animation:floatSlow 12s ease-in-out infinite;
}
.hero::after{
  content:"";position:absolute;bottom:-140px;left:-60px;width:360px;height:360px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,145,80,.16),transparent 68%);
  animation:floatSlow 15s ease-in-out infinite reverse;
}
@keyframes floatSlow{0%,100%{transform:translate(0,0)}50%{transform:translate(-18px,22px)}}
.hero-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:0}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #ffd7c0;color:var(--orange-deep);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;
  box-shadow:0 4px 14px rgba(255,91,26,.1);margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,91,26,.16);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(255,91,26,.16)}50%{box-shadow:0 0 0 8px rgba(255,91,26,.05)}}
.hero h1{
  font-size:clamp(28px,4.6vw,50px);line-height:1.22;font-weight:900;
  letter-spacing:-.5px;color:var(--ink);max-width:820px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--orange),var(--orange-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;font-size:clamp(15px,1.6vw,17px);color:var(--ink-2);
  max-width:660px;line-height:1.85;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.hero-tags span{
  font-size:13px;color:var(--ink-2);background:rgba(255,255,255,.85);
  border:1px solid var(--line);padding:5px 13px;border-radius:999px;
  transition:.25s;
}
.hero-tags span:hover{border-color:#ffc7a8;color:var(--orange-deep);transform:translateY(-2px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;padding:13px 30px;border-radius:999px;
  cursor:pointer;border:none;transition:transform .22s,box-shadow .22s,background .22s;
  font-family:inherit;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;box-shadow:0 10px 24px rgba(255,91,26,.32);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(255,91,26,.4)}
.btn-ghost{
  background:#fff;color:var(--ink);border:1.5px solid var(--line);
}
.btn-ghost:hover{transform:translateY(-3px);border-color:#ffc7a8;color:var(--orange-deep);box-shadow:0 10px 22px rgba(255,91,26,.12)}
.btn:active{transform:translateY(-1px) scale(.99)}

.hero-metrics{
  position:relative;z-index:2;margin-top:52px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.metric{
  background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:14px;padding:20px 18px;text-align:left;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  animation:riseIn .7s ease both;
}
.metric:nth-child(2){animation-delay:.08s}
.metric:nth-child(3){animation-delay:.16s}
.metric:nth-child(4){animation-delay:.24s}
.metric:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(255,91,26,.14);border-color:#ffd0b6}
.metric strong{display:block;font-size:26px;font-weight:900;color:var(--orange-deep);line-height:1.2}
.metric span{font-size:13px;color:var(--ink-3);display:block;margin-top:6px}
@keyframes riseIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}

/* ===== Section base ===== */
.sec{padding:74px 0}
.sec.alt{background:linear-gradient(180deg,#fff6ef 0%,#fffaf6 100%)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--orange-deep);background:var(--orange-soft);
  padding:4px 12px;border-radius:6px;margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(23px,3vw,34px);font-weight:900;line-height:1.3;
  letter-spacing:-.3px;color:var(--ink);
}
.sec-head p{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:transform .28s,box-shadow .28s,border-color .28s;
  display:flex;flex-direction:column;gap:10px;
}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(200,90,30,.12);border-color:#ffd2b8}
.card h3{font-size:17px;font-weight:800;color:var(--ink)}
.card p{font-size:14px;color:var(--ink-2);line-height:1.8}
.card .tag{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--orange-deep);
  background:var(--orange-soft);padding:3px 10px;border-radius:6px;
}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#ffe4d3,#ffd0b4);color:var(--orange-deep);
  font-weight:900;font-size:17px;flex-shrink:0;
}

/* about / intro split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.intro-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:0 10px 30px rgba(200,90,30,.06);
}
.intro-card h3{font-size:20px;font-weight:900;margin-bottom:14px}
.intro-card p{font-size:14.5px;color:var(--ink-2);line-height:1.9;margin-bottom:12px}
.intro-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:8px}
.intro-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.intro-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);
  margin-top:8px;flex-shrink:0;
}
.stat-stack{display:flex;flex-direction:column;gap:14px}
.stat-item{
  display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:18px 20px;transition:.25s;
}
.stat-item:hover{border-color:#ffd2b8;box-shadow:0 12px 28px rgba(200,90,30,.1);transform:translateX(4px)}
.stat-item strong{font-size:22px;font-weight:900;color:var(--orange-deep);min-width:64px}
.stat-item span{font-size:14px;color:var(--ink-2)}

/* models cloud */
.tags-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tags-cloud span{
  font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  padding:7px 15px;border-radius:999px;transition:.25s;cursor:default;
}
.tags-cloud span:hover{background:var(--orange-soft);border-color:#ffc7a8;color:var(--orange-deep);transform:translateY(-3px)}

/* flow steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:26px 20px 22px;transition:.28s;
}
.step:hover{transform:translateY(-5px);box-shadow:0 16px 34px rgba(200,90,30,.12);border-color:#ffd2b8}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:900;color:var(--orange);
  display:block;margin-bottom:10px;letter-spacing:1px;
}
.step h3{font-size:16px;font-weight:800;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* compare table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 10px 30px rgba(200,90,30,.06)}
table{width:100%;border-collapse:collapse;min-width:640px}
th,td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
thead th{background:linear-gradient(135deg,#fff2eb,#ffe6d8);font-weight:800;color:var(--ink);font-size:14px;white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fffaf6}
td.strong{font-weight:800;color:var(--ink)}
td .tick{color:var(--orange-deep);font-weight:900}

.rating-panel{
  display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;
  background:linear-gradient(135deg,#fff4ec,#ffe8d9);
  border:1px solid #ffd2b8;border-radius:var(--radius);padding:28px 30px;margin-bottom:24px;
}
.rating-score{text-align:center;flex-shrink:0}
.rating-score strong{font-size:46px;font-weight:900;color:var(--orange-deep);line-height:1}
.rating-score span{display:block;font-size:13px;color:var(--ink-3);margin-top:6px}
.rating-stars{color:var(--orange);font-size:20px;letter-spacing:3px;margin-bottom:8px}
.rating-panel p{font-size:14.5px;color:var(--ink-2);line-height:1.85}
.rating-panel b{color:var(--ink)}

/* case */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.28s;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(200,90,30,.14);border-color:#ffd2b8}
.case-media{overflow:hidden;background:#fff2eb;aspect-ratio:16/9}
.case-media img{width:100%;height:100%;object-fit:contain;transition:transform .5s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.case-body h3{font-size:17px;font-weight:800}
.case-body p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:10px}
.case-tags span{font-size:12px;color:var(--orange-deep);background:var(--orange-soft);padding:3px 10px;border-radius:6px}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  display:flex;flex-direction:column;gap:12px;transition:.28s;
}
.review:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(200,90,30,.12);border-color:#ffd2b8}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--orange),#ff9a5c);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.review-top strong{font-size:14.5px;display:block}
.review-top small{font-size:12.5px;color:var(--ink-3)}
.review p{font-size:13.5px;color:var(--ink-2);line-height:1.85}
.review-stars{color:var(--orange);font-size:13px;letter-spacing:2px}

/* article list */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article{
  display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:22px;transition:.28s;
}
.article:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(200,90,30,.12);border-color:#ffd2b8}
.article h3{font-size:15.5px;font-weight:800;line-height:1.5}
.article p{font-size:13.5px;color:var(--ink-3);line-height:1.75}
.article .more{font-size:13px;font-weight:700;color:var(--orange-deep);margin-top:4px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item.open{border-color:#ffc7a8;box-shadow:0 12px 30px rgba(200,90,30,.1)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:18px 22px;font-size:15px;font-weight:700;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit;
  transition:color .2s;
}
.faq-q:hover{color:var(--orange-deep)}
.faq-q .arrow{font-size:18px;color:var(--orange);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q .arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--ink-2);line-height:1.85}

/* form */
.form-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.contact-card{
  background:linear-gradient(160deg,#fff4ec,#ffe9db);
  border:1px solid #ffd2b8;border-radius:var(--radius);padding:30px;
}
.contact-card h3{font-size:19px;font-weight:900;margin-bottom:16px}
.contact-item{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px;font-size:14px;color:var(--ink-2)}
.contact-item b{color:var(--ink);display:block;font-size:13px;margin-bottom:2px}
.contact-item .ci-ico{
  width:34px;height:34px;border-radius:10px;background:#fff;border:1px solid #ffd2b8;
  display:flex;align-items:center;justify-content:center;color:var(--orange-deep);
  font-weight:900;font-size:14px;flex-shrink:0;
}
.qr-box{display:flex;align-items:center;gap:14px;margin-top:18px;background:#fff;border:1px solid #ffd2b8;border-radius:12px;padding:14px}
.qr-box img{width:88px;height:88px;object-fit:contain;border-radius:8px;flex-shrink:0}
.qr-box p{font-size:13px;color:var(--ink-2);line-height:1.7}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:0 10px 30px rgba(200,90,30,.07);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-2)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:var(--ink);
  border:1.5px solid var(--line);border-radius:10px;padding:11px 14px;
  background:#fffaf6;transition:border-color .2s,box-shadow .2s;outline:none;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,91,26,.12);background:#fff;
}
.field textarea{resize:vertical;min-height:104px}
.form-card .btn{width:100%;margin-top:6px}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;text-align:center}

/* pricing / token */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;
  display:flex;flex-direction:column;gap:12px;transition:.28s;position:relative;
}
.price-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(200,90,30,.13);border-color:#ffd2b8}
.price-card.hot{border-color:var(--orange);box-shadow:0 14px 34px rgba(255,91,26,.16)}
.price-card.hot::after{
  content:"推荐";position:absolute;top:-11px;right:20px;
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));color:#fff;
  font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;
}
.price-card h3{font-size:16px;font-weight:800}
.price-card .price{font-size:28px;font-weight:900;color:var(--orange-deep);line-height:1.2}
.price-card .price small{font-size:13px;font-weight:600;color:var(--ink-3);margin-left:2px}
.price-card ul{list-style:none;display:flex;flex-direction:column;gap:9px;font-size:13.5px;color:var(--ink-2);margin:6px 0}
.price-card ul li{display:flex;gap:8px}
.price-card ul li::before{content:"✓";color:var(--orange);font-weight:900;flex-shrink:0}

/* timeline / network */
.timeline{position:relative;padding-left:26px;border-left:2px solid #ffd2b8;display:flex;flex-direction:column;gap:24px}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 0 4px rgba(255,91,26,.16);
}
.tl-item strong{display:block;font-size:15.5px;font-weight:800;margin-bottom:4px}
.tl-item p{font-size:13.5px;color:var(--ink-2);line-height:1.8}

.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.net-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;
  transition:.25s;
}
.net-card:hover{border-color:#ffd2b8;transform:translateY(-4px);box-shadow:0 12px 28px rgba(200,90,30,.1)}
.net-card h3{font-size:15px;font-weight:800;margin-bottom:6px}
.net-card p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* friend links */
.friend-links{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;
}
.friend-links h3{font-size:16px;font-weight:800;margin-bottom:16px}
.link-tags{display:flex;flex-wrap:wrap;gap:10px}
.link-tags a{
  font-size:13px;color:var(--ink-2);background:#fffaf6;border:1px solid var(--line);
  padding:7px 15px;border-radius:999px;transition:.25s;
}
.link-tags a:hover{color:#fff;background:linear-gradient(135deg,var(--orange),var(--orange-deep));border-color:transparent;transform:translateY(-3px)}

/* footer */
.site-footer{
  background:#231812;color:#f3e5dc;padding:52px 0 24px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;align-items:start}
.footer-brand img{width:120px;margin-bottom:14px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13.5px;color:#c9b4a8;line-height:1.85;max-width:340px}
.footer-col h3{font-size:15px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13.5px;color:#c9b4a8;transition:color .2s}
.footer-col a:hover{color:var(--orange)}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:#a8917f;
}
.footer-bottom a{color:#c9b4a8}
.footer-bottom a:hover{color:var(--orange)}

/* float */
.float-service{
  position:fixed;right:20px;bottom:88px;z-index:90;
  display:flex;flex-direction:column;gap:10px;
}
.float-btn{
  width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(200,90,30,.28);transition:transform .22s,box-shadow .22s;
  font-size:12px;font-weight:700;color:#fff;font-family:inherit;
}
.float-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 14px 30px rgba(200,90,30,.36)}
.float-kf{background:linear-gradient(135deg,var(--orange),var(--orange-deep))}
.float-top{background:#4a3a31;display:none}
.float-kf-panel{
  position:fixed;right:20px;bottom:150px;z-index:95;width:250px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;
  box-shadow:0 20px 48px rgba(60,30,10,.18);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;
}
.float-kf-panel.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-kf-panel h3{font-size:14px;font-weight:800;margin-bottom:10px;color:var(--ink)}
.float-kf-panel img{width:100%;max-width:180px;margin:0 auto 10px;border-radius:8px}
.float-kf-panel p{font-size:12.5px;color:var(--ink-3);text-align:center;line-height:1.7}

/* responsive */
@media(max-width:980px){
  .hero-metrics{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .form-layout{grid-template-columns:1fr}
  .network-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:12px 20px 18px;gap:2px;
    display:none;box-shadow:0 14px 30px rgba(60,30,10,.1);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 12px}
  .nav-cta{display:none}
  .nav-wrap{position:relative}
}
@media(max-width:640px){
  .sec{padding:54px 0}
  .hero{padding:56px 0 62px}
  .g2,.g3,.g4,.review-grid,.article-grid,.steps{grid-template-columns:1fr}
  .rating-panel{grid-template-columns:1fr;text-align:left;gap:16px}
  .rating-score{text-align:left}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .hero-actions .btn{flex:1}
  .float-service{right:14px;bottom:78px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}