*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#141a2e;
  --ink-2:#3a4260;
  --muted:#6a7390;
  --line:#e6e9f4;
  --bg:#f6f4ff;
  --card:#ffffff;
  --c1:#ff2e88;
  --c2:#7b2bff;
  --c3:#00b3ff;
  --c4:#ffb02e;
  --grad:linear-gradient(120deg,#ff2e88 0%,#7b2bff 55%,#00b3ff 100%);
  --grad-soft:linear-gradient(135deg,#fff1f7 0%,#f1edff 50%,#e9f8ff 100%);
  --shadow:0 10px 30px rgba(68,40,150,.10);
  --shadow-lg:0 22px 60px rgba(68,40,150,.18);
  --radius:20px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
section{position:relative}
.section-pad{padding:74px 0}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:#7b2bff;background:rgba(123,43,255,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
h2.section-title{font-size:clamp(24px,3.4vw,34px);line-height:1.3;letter-spacing:-.5px}
h2.section-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px}

/* ===== top bar / nav ===== */
.top-bar{background:var(--grad);color:#fff;font-size:13px}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:36px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px}
.top-bar a{color:#fff;opacity:.95}
.top-bar a:hover{opacity:1;text-decoration:underline}
.top-bar .tb-right{display:flex;gap:18px;flex-wrap:wrap}

header.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
header.site-header.scrolled{box-shadow:0 8px 26px rgba(68,40,150,.10)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:36px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;letter-spacing:.5px}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  display:block;padding:10px 12px;font-size:14.5px;font-weight:600;color:var(--ink-2);
  border-radius:10px;position:relative;transition:color .2s;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .28s;
}
.nav-links a:hover{color:var(--c2)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14.5px;font-weight:700;border-radius:12px;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .25s,background .25s;
  font-family:inherit;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(123,43,255,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(123,43,255,.42)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:0 4px 14px rgba(68,40,150,.06)}
.btn-ghost:hover{border-color:#cfc6f5;transform:translateY(-2px)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-line:hover{background:rgba(255,255,255,.14)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 480px at 88% -10%,rgba(0,179,255,.22),transparent 60%),
    radial-gradient(760px 420px at 4% 6%,rgba(255,46,136,.20),transparent 62%),
    linear-gradient(160deg,#fdf5ff 0%,#f3f0ff 46%,#eef7ff 100%);
  padding:72px 0 84px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(123,43,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(123,43,255,.06) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 30%,transparent 78%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero h1{
  font-size:clamp(30px,4.6vw,50px);line-height:1.18;letter-spacing:-1px;margin:14px 0 18px;
}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--ink-2);font-size:16.5px;max-width:600px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 26px}
.tag{
  font-size:13px;font-weight:600;color:#5a2bb8;background:#fff;border:1px solid #e3d9ff;
  padding:6px 13px;border-radius:999px;box-shadow:0 4px 12px rgba(123,43,255,.08);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted)}

.hero-panel{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:26px;
  padding:26px;box-shadow:var(--shadow-lg);
}
.hero-panel::after{
  content:"";position:absolute;inset:-1px;border-radius:26px;padding:1px;
  background:var(--grad);opacity:.28;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.panel-title{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--muted);margin-bottom:16px}
.metric-list{display:grid;gap:12px}
.metric{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 16px;border-radius:14px;background:var(--grad-soft);border:1px solid #eee7ff;
}
.metric b{font-size:21px;letter-spacing:-.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{font-size:13.5px;color:var(--ink-2);font-weight:600}
.panel-foot{margin-top:16px;font-size:12.5px;color:var(--muted);text-align:center}

/* ===== marquee ===== */
.model-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;padding:16px 0}
.marquee{display:flex;gap:14px;width:max-content;animation:slide 34s linear infinite}
.model-strip:hover .marquee{animation-play-state:paused}
.chip{font-size:13.5px;font-weight:600;color:var(--ink-2);background:#f7f6ff;border:1px solid var(--line);padding:7px 15px;border-radius:999px;white-space:nowrap}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== about ===== */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.about-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);
}
.about-card h3{font-size:20px;margin-bottom:12px}
.about-card p{color:var(--ink-2);font-size:15px}
.about-list{display:grid;gap:12px;margin-top:20px}
.about-item{display:flex;gap:12px;align-items:flex-start}
.dot{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
}
.about-item b{display:block;font-size:15px}
.about-item span{font-size:13.5px;color:var(--muted)}
.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cap{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.cap:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#e0d5ff}
.cap .ico{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:10px;background:var(--grad-soft);border:1px solid #ece5ff;
}
.cap b{display:block;font-size:15px;margin-bottom:4px}
.cap span{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== services ===== */
.services{background:linear-gradient(180deg,#ffffff 0%,#f7f4ff 100%)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  position:relative;overflow:hidden;transition:transform .28s,box-shadow .28s;
}
.svc::before{
  content:"";position:absolute;top:0;left:0;height:4px;width:100%;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.svc:hover::before{transform:scaleX(1)}
.svc h3{font-size:17px;margin-bottom:8px}
.svc p{font-size:14px;color:var(--ink-2)}
.svc .num{
  position:absolute;top:16px;right:18px;font-size:34px;font-weight:800;letter-spacing:-2px;
  color:rgba(123,43,255,.10);
}

/* ===== workflow ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 22px;
  position:relative;transition:transform .25s,box-shadow .25s;
}
.flow-item:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.flow-item .step{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;
  font-weight:800;font-size:14px;color:#fff;background:var(--grad);margin-bottom:14px;
  box-shadow:0 8px 18px rgba(123,43,255,.28);
}
.flow-item b{display:block;font-size:16px;margin-bottom:6px}
.flow-item p{font-size:13.5px;color:var(--muted)}

/* ===== network ===== */
.network{background:linear-gradient(160deg,#f4f1ff 0%,#eef8ff 100%)}
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net{
  background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:16px;padding:20px;
  display:flex;flex-direction:column;gap:6px;
}
.net b{font-size:15.5px}
.net span{font-size:13px;color:var(--muted)}

/* ===== compare ===== */
.compare{background:#fff}
.compare-top{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px;
}
.score{
  background:var(--grad-soft);border:1px solid #ece5ff;border-radius:18px;padding:22px;text-align:center;
}
.score strong{display:block;font-size:30px;letter-spacing:-1px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.score span{font-size:13.5px;color:var(--ink-2);font-weight:600}
.stars{color:#ffb02e;font-size:16px;letter-spacing:2px}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
thead th{
  background:linear-gradient(120deg,#faf6ff,#f2f9ff);text-align:left;padding:15px 18px;
  font-size:14px;font-weight:800;color:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:14px 18px;border-bottom:1px solid #f1f0f8;color:var(--ink-2);vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#fbfaff}
td.hl{color:#7b2bff;font-weight:700}

/* ===== cases ===== */
.cases{background:linear-gradient(180deg,#f7f4ff 0%,#ffffff 100%)}
.case-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:start}
.case-media{border-radius:20px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.case-media img{width:100%;height:auto}
.case-stack{display:grid;gap:16px}
.case-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;transition:transform .25s,box-shadow .25s}
.case-box:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-box b{display:block;font-size:15.5px;margin-bottom:6px}
.case-box p{font-size:13.5px;color:var(--muted)}
.case-box.square{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center}
.case-box.square .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.case-box.square .thumb img{width:100%;height:auto}

/* ===== reviews ===== */
.reviews{background:#fff}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{
  background:linear-gradient(160deg,#fdfbff,#f6f9ff);border:1px solid var(--line);border-radius:18px;padding:22px;
  display:flex;flex-direction:column;gap:12px;transition:transform .25s,box-shadow .25s;
}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.review p{font-size:14px;color:var(--ink-2)}
.who{display:flex;align-items:center;gap:10px}
.avatar{
  width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.who b{display:block;font-size:14px}
.who span{font-size:12.5px;color:var(--muted)}

/* ===== token price ===== */
.price-sec{background:linear-gradient(160deg,#f3f0ff,#eef9ff)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;position:relative;
  transition:transform .25s,box-shadow .25s;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.price-card.featured{border-color:#d9c6ff;box-shadow:0 18px 44px rgba(123,43,255,.16)}
.price-card.featured::after{
  content:"推荐";position:absolute;top:-12px;right:20px;background:var(--grad);color:#fff;
  font-size:12px;font-weight:800;padding:4px 12px;border-radius:999px;
}
.price-card h3{font-size:17px;margin-bottom:6px}
.price-card .amount{font-size:30px;font-weight:800;letter-spacing:-1px;margin:10px 0 4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price-card .amount small{font-size:14px;font-weight:600;color:var(--muted);-webkit-text-fill-color:var(--muted)}
.price-card ul{display:grid;gap:8px;margin-top:16px}
.price-card li{font-size:13.5px;color:var(--ink-2);padding-left:20px;position:relative}
.price-card li::before{content:"✓";position:absolute;left:0;color:#7b2bff;font-weight:800}
.price-card .btn{width:100%;margin-top:18px}

/* ===== faq ===== */
.faq{background:#fff}
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;transition:box-shadow .25s,border-color .25s}
.faq-item.open{border-color:#ddcfff;box-shadow:var(--shadow)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;font-family:inherit;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-q .sign{flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--grad-soft);color:#7b2bff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;transition:transform .3s}
.faq-item.open .sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 20px 18px;font-size:14px;color:var(--ink-2)}

/* ===== articles ===== */
.articles{background:linear-gradient(180deg,#ffffff,#f7f4ff)}
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.art{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;
  display:flex;flex-direction:column;gap:10px;transition:transform .25s,box-shadow .25s;
}
.art:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.art .cat{font-size:12px;font-weight:800;color:#7b2bff;letter-spacing:.08em}
.art h3{font-size:16px;line-height:1.5}
.art p{font-size:13.5px;color:var(--muted);flex:1}
.art .go{font-size:13.5px;font-weight:700;color:#7b2bff}

/* ===== form ===== */
.contact{background:linear-gradient(160deg,#f6f2ff,#eef9ff)}
.contact-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:start}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.contact-info h3{font-size:19px;margin-bottom:14px}
.info-row{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed #ecebf6;font-size:14px}
.info-row:last-of-type{border-bottom:none}
.info-row b{flex:0 0 78px;color:var(--muted);font-weight:600}
.info-row span{color:var(--ink-2);word-break:break-all}
.qr{margin-top:18px;display:flex;align-items:center;gap:14px;background:var(--grad-soft);border:1px solid #ece5ff;border-radius:14px;padding:14px}
.qr img{width:96px;height:96px;object-fit:contain;border-radius:10px;background:#fff;padding:4px}
.qr b{display:block;font-size:14px;margin-bottom:4px}
.qr span{font-size:12.5px;color:var(--muted)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink);background:#fbfaff;
  border:1px solid var(--line);border-radius:11px;padding:11px 14px;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#b79bff;box-shadow:0 0 0 4px rgba(123,43,255,.10);background:#fff;
}
.form-card .btn{margin-top:18px;width:100%}
.form-tip{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center}

/* ===== links ===== */
.link-sec{background:#fff;border-top:1px solid var(--line)}
.link-grid{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.link-grid a{
  font-size:13.5px;font-weight:600;color:var(--ink-2);background:#f7f6ff;border:1px solid var(--line);
  padding:8px 16px;border-radius:999px;transition:.22s;
}
.link-grid a:hover{color:#7b2bff;border-color:#d9c6ff;background:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(123,43,255,.12)}

/* ===== footer ===== */
footer.site-footer{background:#151129;color:#c9c5de;padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
footer.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:800}
footer.site-footer p{font-size:13.5px;color:#a8a4c2;line-height:1.8}
footer.site-footer a{color:#c9c5de;font-size:13.5px;display:block;padding:4px 0;transition:color .2s}
footer.site-footer a:hover{color:#fff}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand img{height:34px;width:auto;background:#fff;border-radius:8px;padding:3px}
.footer-brand b{color:#fff;font-size:17px;letter-spacing:.5px}
.footer-bottom{
  margin-top:36px;border-top:1px solid rgba(255,255,255,.10);padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#9894b4;
}
.footer-bottom a{display:inline;color:#c9c5de}

/* ===== floating ===== */
.float-actions{position:fixed;right:18px;bottom:22px;display:flex;flex-direction:column;gap:10px;z-index:120}
.fab{
  width:50px;height:50px;border-radius:50%;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff;
  background:var(--grad);box-shadow:0 12px 26px rgba(123,43,255,.36);
  transition:transform .2s,opacity .3s;
}
.fab:hover{transform:translateY(-3px)}
.fab.top{background:#fff;color:#7b2bff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(68,40,150,.16);opacity:0;pointer-events:none;font-size:16px}
.fab.top.show{opacity:1;pointer-events:auto}
.kefu-pop{
  position:fixed;right:78px;bottom:22px;width:220px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-lg);padding:14px;z-index:119;
  opacity:0;transform:translateY(10px);pointer-events:none;transition:.28s;
}
.kefu-pop.show{opacity:1;transform:translateY(0);pointer-events:auto}
.kefu-pop img{width:100%;height:auto;border-radius:10px}
.kefu-pop p{font-size:12.5px;color:var(--muted);text-align:center;margin-top:8px}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee{animation:none}
}

/* ===== responsive ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-panel{max-width:560px}
  .about-wrap{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .compare-top{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .art-grid{grid-template-columns:repeat(2,1fr)}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 18px;display:none;
    box-shadow:0 18px 40px rgba(68,40,150,.14);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 8px;border-radius:8px}
  .nav-links a::after{display:none}
  .menu-toggle{display:flex}
  .nav-cta .btn{padding:10px 16px;font-size:13.5px}
}
@media (max-width:640px){
  .section-pad{padding:54px 0}
  .hero{padding:52px 0 60px}
  .svc-grid,.flow,.net-grid,.review-grid,.art-grid,.compare-top,.cap-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center;align-items:flex-start}
  .top-bar .container{justify-content:center;text-align:center}
  .top-bar .tb-right{display:none}
  .nav-cta .btn-ghost{display:none}
  .hero-panel{padding:20px}
  .case-box.square{grid-template-columns:1fr}
  .kefu-pop{right:18px;bottom:84px}
}