:root{
  --ink:#0d1230;
  --ink-soft:#3f476b;
  --muted:#6b7291;
  --bg:#f5f6ff;
  --card:#ffffff;
  --violet:#7c3aed;
  --indigo:#4f46e5;
  --cyan:#06b6d4;
  --line:rgba(93,84,175,.16);
  --radius:18px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 6% -8%, rgba(124,58,237,.16), transparent 62%),
    radial-gradient(820px 500px at 98% 2%, rgba(6,182,212,.14), transparent 64%),
    radial-gradient(760px 620px at 50% 52%, rgba(236,72,153,.08), transparent 66%),
    radial-gradient(700px 520px at 4% 96%, rgba(99,102,241,.12), transparent 66%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{position:relative;display:flex;align-items:center;gap:12px;min-height:72px;}
.brand{display:flex;align-items:center;margin-right:auto;flex-shrink:0;text-decoration:none;}
.brand .ai-page-logo{max-width:118px;}
.nav-links{display:flex;align-items:center;gap:0;}
.nav-links a{
  display:block;padding:9px 9px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  text-decoration:none;white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover,.nav-links a:focus-visible{color:#5b21b6;background:rgba(124,58,237,.09);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;border:0;cursor:pointer;
  font-size:16px;font-weight:700;font-family:inherit;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
}
.btn-sm{padding:10px 20px;font-size:14.5px;}
.btn-primary{
  color:#fff;
  background:linear-gradient(115deg,#7c3aed,#4f46e5 48%,#06b6d4);
  box-shadow:0 12px 26px rgba(91,33,182,.30);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(91,33,182,.38);}
.btn-ghost{color:#4c1d95;background:#fff;border:1.5px solid rgba(124,58,237,.32);}
.btn-ghost:hover{background:#f4efff;transform:translateY(-2px);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  padding:0;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:74px 0 66px;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.85;
  background-image:
    linear-gradient(rgba(124,58,237,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,58,237,.07) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 26%,#000 18%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 26%,#000 18%,transparent 72%);
}
.hero-glow{position:absolute;border-radius:50%;pointer-events:none;filter:blur(64px);opacity:.55;z-index:0;}
.hero-glow.g1{width:320px;height:320px;top:-90px;left:1%;background:radial-gradient(circle,#a78bfa,transparent 70%);animation:floatY 13s ease-in-out infinite;}
.hero-glow.g2{width:300px;height:300px;bottom:-110px;right:2%;background:radial-gradient(circle,#67e8f9,transparent 70%);animation:floatY 15s ease-in-out infinite;animation-delay:-5s;}
.hero-glow.g3{width:230px;height:230px;top:42%;left:48%;background:radial-gradient(circle,#fda4af,transparent 70%);animation:floatY 17s ease-in-out infinite;animation-delay:-9s;}
@keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-22px);}}
.hero-inner{position:relative;z-index:1;max-width:900px;margin:0 auto;text-align:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(124,58,237,.26);
  color:#5b21b6;font-size:13.5px;font-weight:700;
  box-shadow:0 8px 22px rgba(124,58,237,.14);
}
.hero-badge::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,#7c3aed,#06b6d4);
  box-shadow:0 0 0 0 rgba(124,58,237,.45);
  animation:pulseDot 2.4s ease-out infinite;
}
@keyframes pulseDot{0%{box-shadow:0 0 0 0 rgba(124,58,237,.45);}70%{box-shadow:0 0 0 10px rgba(124,58,237,0);}100%{box-shadow:0 0 0 0 rgba(124,58,237,0);}}
.hero h1{
  margin:24px 0 0;
  font-size:clamp(28px,4.4vw,52px);
  line-height:1.2;
  color:var(--ink);
}
.hero h1 .accent{color:#5b21b6;}
.hero-lead{
  max-width:740px;margin:20px auto 0;
  font-size:clamp(15px,1.5vw,17.5px);
  line-height:1.85;color:var(--ink-soft);
}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:48px;
}
.hero-stats li{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(124,58,237,.16);
  border-radius:16px;padding:18px 10px;text-align:center;
  box-shadow:0 10px 28px rgba(58,26,122,.07);
  transition:transform .25s ease,box-shadow .25s ease;
}
.hero-stats li:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(58,26,122,.14);}
.hero-stats strong{display:block;font-size:clamp(22px,3vw,30px);font-weight:800;color:#3b1d8f;letter-spacing:.4px;}
.hero-stats span{display:block;margin-top:4px;font-size:13px;color:var(--muted);}
.hero-badge,.hero h1,.hero-lead,.hero-actions,.hero-stats{animation:heroIn .8s ease both;}
.hero h1{animation-delay:.08s;}
.hero-lead{animation-delay:.16s;}
.hero-actions{animation-delay:.24s;}
.hero-stats{animation-delay:.32s;}
@keyframes heroIn{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:none;}}

/* ---------- common section ---------- */
.section{padding:68px 0;}
.section-head{max-width:780px;margin:0 auto 40px;text-align:center;}
.eyebrow{
  display:inline-block;margin-bottom:14px;padding:6px 15px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:2px;color:#6d28d9;
  background:rgba(124,58,237,.10);
}
.section-head h2{font-size:clamp(23px,3.1vw,35px);color:var(--ink);margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--ink-soft);line-height:1.8;}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:0 12px 30px rgba(58,26,122,.06);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:0 22px 44px rgba(58,26,122,.14);border-color:rgba(124,58,237,.3);}
.topper{height:4px;width:46px;border-radius:999px;background:linear-gradient(90deg,#7c3aed,#06b6d4);margin-bottom:16px;}
.card h3{font-size:17.5px;color:var(--ink);margin-bottom:9px;}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.78;}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start;}
.about-copy p{font-size:15.5px;line-height:1.85;color:var(--ink-soft);margin-bottom:14px;}
.about-copy p:last-child{margin-bottom:0;}
.about-copy strong{color:#5b21b6;}
.about-points{display:grid;gap:12px;}
.about-points li{
  display:flex;gap:12px;align-items:flex-start;padding:15px 18px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 8px 22px rgba(58,26,122,.05);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.about-points li:hover{transform:translateX(4px);border-color:rgba(124,58,237,.3);box-shadow:0 14px 28px rgba(58,26,122,.12);}
.about-points li::before{
  content:"";margin-top:8px;width:8px;height:8px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#7c3aed,#06b6d4);
}
.about-points h4{font-size:15px;color:var(--ink);margin-bottom:2px;}
.about-points span{font-size:13.5px;color:var(--muted);line-height:1.65;display:block;}
.tag-cloud{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
  margin-top:30px;padding:24px;
  background:rgba(255,255,255,.72);
  border:1px dashed rgba(124,58,237,.3);border-radius:20px;
}
.tag-cloud span{
  font-size:13.5px;font-weight:600;color:#4b3a8f;
  padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tag-cloud span:hover{transform:translateY(-2px);border-color:rgba(124,58,237,.45);box-shadow:0 10px 20px rgba(124,58,237,.16);}

/* ---------- showcase ---------- */
.showcase{
  margin-top:28px;border-radius:20px;overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:0 18px 44px rgba(58,26,122,.12);
}
.showcase img{width:100%;height:auto;}

/* ---------- scene ---------- */
.scene{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.scene:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(58,26,122,.13);border-color:rgba(124,58,237,.3);}
.scene h3{font-size:16px;color:var(--ink);margin-bottom:7px;}
.scene p{font-size:13.8px;color:var(--muted);line-height:1.72;}

/* ---------- network ---------- */
.network{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:26px;padding:24px;border-radius:20px;
  background:linear-gradient(115deg,rgba(124,58,237,.10),rgba(6,182,212,.10));
  border:1px solid var(--line);
}
.network div{text-align:center;}
.network strong{display:block;font-size:15px;color:#3b1d8f;margin-bottom:4px;}
.network span{font-size:13.5px;color:var(--ink-soft);line-height:1.6;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 18px;
  transition:transform .26s ease,box-shadow .26s ease;
}
.step:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(58,26,122,.14);}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:14px;
  font-size:15px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#7c3aed,#06b6d4);
  box-shadow:0 8px 18px rgba(91,33,182,.28);
}
.step h3{font-size:15.8px;color:var(--ink);margin-bottom:7px;}
.step p{font-size:13.6px;color:var(--muted);line-height:1.72;}

/* ---------- cases ---------- */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:0 12px 30px rgba(58,26,122,.07);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 24px 46px rgba(58,26,122,.16);border-color:rgba(124,58,237,.3);}
.case-media{aspect-ratio:16/10;background:#eef0ff;}
.case-media img{width:100%;height:100%;object-fit:cover;}
.case-body{padding:18px 20px 22px;}
.case-body h3{font-size:16.5px;color:var(--ink);margin-bottom:7px;}
.case-body p{font-size:13.8px;color:var(--muted);line-height:1.72;}

/* ---------- compare ---------- */
.compare-top{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;margin-bottom:24px;align-items:stretch;}
.score-card{
  background:linear-gradient(140deg,#f2ecff,#e6f9ff);
  border:1px solid rgba(124,58,237,.26);
  border-radius:20px;padding:26px;text-align:center;
  box-shadow:0 16px 36px rgba(58,26,122,.10);
}
.score-card .stars{font-size:22px;letter-spacing:4px;color:#f59e0b;}
.score-card .score-num{font-size:52px;font-weight:800;color:#3b1d8f;line-height:1.1;margin-top:8px;}
.score-card .score-num span{font-size:18px;font-weight:700;color:var(--muted);}
.score-card p{margin-top:10px;font-size:14.5px;font-weight:700;color:#4c1d95;}
.compare-note{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;
  box-shadow:0 12px 30px rgba(58,26,122,.06);
}
.compare-note h3{font-size:17px;color:var(--ink);margin-bottom:10px;}
.compare-note p{font-size:14.5px;color:var(--ink-soft);line-height:1.82;margin-bottom:10px;}
.compare-note p:last-child{margin-bottom:0;}
.table-wrap{
  overflow-x:auto;border-radius:18px;background:#fff;
  border:1px solid var(--line);box-shadow:0 16px 36px rgba(58,26,122,.08);
}
table{width:100%;border-collapse:collapse;min-width:720px;font-size:14.6px;}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
thead th{
  background:linear-gradient(115deg,rgba(124,58,237,.12),rgba(6,182,212,.12));
  color:#3b1d8f;font-weight:800;white-space:nowrap;
}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:rgba(124,58,237,.05);}
td.best{color:#5b21b6;font-weight:700;}

/* ---------- token ---------- */
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;
  box-shadow:0 12px 30px rgba(58,26,122,.06);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;flex-direction:column;
}
.price-card:hover{transform:translateY(-5px);box-shadow:0 22px 44px rgba(58,26,122,.14);border-color:rgba(124,58,237,.3);}
.price-card .topper{margin-bottom:16px;}
.price-card h3{font-size:17px;color:var(--ink);margin-bottom:10px;}
.price-card p{font-size:14.3px;color:var(--ink-soft);line-height:1.78;}
.price-note{
  margin-top:20px;padding:16px 20px;border-radius:14px;
  background:rgba(255,255,255,.8);border:1px solid var(--line);
  font-size:13.8px;color:var(--muted);text-align:center;
}

/* ---------- reviews ---------- */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.review{
  display:flex;flex-direction:column;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:0 12px 30px rgba(58,26,122,.06);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.review:hover{transform:translateY(-4px);box-shadow:0 22px 44px rgba(58,26,122,.14);border-color:rgba(124,58,237,.3);}
.review .stars{font-size:14px;letter-spacing:2px;color:#f59e0b;}
.review p{font-size:14.5px;color:var(--ink-soft);line-height:1.82;flex:1;}
.reviewer{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#7c3aed,#06b6d4);
}
.reviewer strong{display:block;font-size:14.5px;color:var(--ink);}
.reviewer span{display:block;font-size:12.8px;color:var(--muted);}

/* ---------- articles ---------- */
.article{
  display:flex;flex-direction:column;gap:10px;text-decoration:none;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:0 12px 30px rgba(58,26,122,.06);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.article:hover{transform:translateY(-5px);box-shadow:0 22px 44px rgba(58,26,122,.14);border-color:rgba(124,58,237,.3);}
.article-tag{
  align-self:flex-start;font-size:12.5px;font-weight:700;color:#6d28d9;
  padding:4px 12px;border-radius:999px;background:rgba(124,58,237,.10);
}
.article h3{font-size:16.2px;color:var(--ink);line-height:1.5;}
.article p{font-size:13.8px;color:var(--muted);line-height:1.72;flex:1;}
.article-more{font-size:13.5px;font-weight:700;color:#5b21b6;}

/* ---------- faq ---------- */
.faq-list{max-width:920px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(124,58,237,.36);box-shadow:0 16px 34px rgba(58,26,122,.11);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-family:inherit;font-size:15.8px;font-weight:700;color:var(--ink);
}
.faq-q .plus{position:relative;width:24px;height:24px;flex-shrink:0;}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:#7c3aed;border-radius:2px;transition:transform .25s ease;
}
.faq-q .plus::before{left:0;top:11px;width:24px;height:2px;}
.faq-q .plus::after{left:11px;top:0;width:2px;height:24px;}
.faq-item.open .plus::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 22px 20px;font-size:14.6px;color:var(--ink-soft);line-height:1.82;}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;
  box-shadow:0 16px 38px rgba(58,26,122,.08);
}
.form-card h3{font-size:19px;color:var(--ink);margin-bottom:8px;}
.form-card .form-desc{font-size:14.2px;color:var(--muted);margin-bottom:22px;line-height:1.75;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  border:1px solid rgba(93,84,175,.24);
  background:#fbfbff;color:var(--ink);
  font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#7c3aed;background:#fff;
  box-shadow:0 0 0 3px rgba(124,58,237,.14);
}
.field textarea{min-height:124px;resize:vertical;line-height:1.7;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-card .btn{width:100%;margin-top:6px;}
.form-tip{margin-top:14px;font-size:12.8px;color:var(--muted);text-align:center;}
.contact-side{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;
  box-shadow:0 16px 38px rgba(58,26,122,.08);text-align:center;
}
.contact-side h3{font-size:16.5px;color:var(--ink);margin-bottom:12px;}
.qr-box{max-width:170px;margin:0 auto 14px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#f7f7ff;}
.contact-list{display:grid;gap:10px;text-align:left;margin-top:6px;}
.contact-list li{
  font-size:13.8px;color:var(--ink-soft);line-height:1.6;
  padding:9px 12px;border-radius:10px;background:#f8f8ff;border:1px solid rgba(93,84,175,.12);
  word-break:break-all;
}
.contact-list li strong{color:#4c1d95;font-weight:700;margin-right:4px;}

/* ---------- join banner ---------- */
.join-banner{
  margin-top:26px;padding:30px;border-radius:20px;
  background:linear-gradient(115deg,#5b21b6,#4f46e5 52%,#0891b2);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(58,26,122,.24);
}
.join-banner h3{font-size:20px;margin-bottom:8px;}
.join-banner p{font-size:14.5px;color:rgba(255,255,255,.9);line-height:1.75;max-width:640px;}
.join-banner .btn{background:#fff;color:#4c1d95;box-shadow:0 12px 26px rgba(0,0,0,.18);}
.join-banner .btn:hover{background:#f4efff;}

/* ---------- footer ---------- */
.site-footer{background:#0d1230;color:#c9cdf0;padding:48px 0 24px;margin-top:24px;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;}
.footer-brand h2{font-size:19px;color:#fff;margin-bottom:12px;}
.footer-brand p{font-size:14px;color:#a6acdb;line-height:1.85;max-width:520px;}
.footer-contact h3{font-size:15.5px;color:#fff;margin-bottom:12px;}
.footer-contact ul{display:grid;gap:9px;}
.footer-contact li{font-size:13.8px;color:#a6acdb;line-height:1.7;word-break:break-all;}
.footer-contact li strong{color:#dfe2ff;font-weight:700;margin-right:4px;}
.footer-links{margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);}
.footer-links h3{font-size:14.5px;color:#fff;margin-bottom:14px;}
.footer-links ul{display:flex;flex-wrap:wrap;gap:10px;}
.footer-links a{
  display:inline-block;padding:6px 14px;border-radius:999px;
  font-size:13.2px;color:#b7bdf0;text-decoration:none;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.10);
  transition:color .2s ease,background-color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:#fff;background:rgba(124,58,237,.35);transform:translateY(-2px);}
.footer-bottom{
  margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  text-align:center;font-size:13px;color:#8f96c9;
}

/* ---------- float ---------- */
.float-actions{position:fixed;right:18px;bottom:22px;z-index:200;display:flex;flex-direction:column;gap:10px;}
.float-btn{
  width:52px;height:52px;border-radius:16px;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  color:#fff;background:linear-gradient(135deg,#7c3aed,#06b6d4);
  box-shadow:0 14px 28px rgba(91,33,182,.34);
  transition:transform .2s ease,box-shadow .2s ease,opacity .25s ease,visibility .25s ease;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 20px 36px rgba(91,33,182,.42);}
.float-btn.top{opacity:0;visibility:hidden;pointer-events:none;background:linear-gradient(135deg,#4f46e5,#0891b2);}
.float-btn.top.show{opacity:1;visibility:visible;pointer-events:auto;}
.kefu-panel{
  position:fixed;right:18px;bottom:150px;width:222px;z-index:210;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;text-align:center;
  box-shadow:0 22px 46px rgba(30,25,90,.2);display:none;
}
.kefu-panel.open{display:block;animation:popIn .24s ease;}
@keyframes popIn{from{opacity:0;transform:translateY(10px) scale(.96);}to{opacity:1;transform:none;}}
.kefu-panel img{width:100%;border-radius:12px;margin-bottom:10px;}
.kefu-panel p{font-size:13px;color:var(--ink-soft);line-height:1.65;}

/* ---------- reveal ---------- */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease;}
.js [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:20px;right:20px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:8px;box-shadow:0 22px 46px rgba(30,25,90,.16);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:11px 14px;font-size:15px;}
}
@media (max-width:960px){
  .grid-3,.grid-4,.steps,.reviews{grid-template-columns:repeat(2,1fr);}
  .cases{grid-template-columns:1fr;}
  .about-grid{grid-template-columns:1fr;}
  .compare-top{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .network{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr;}
  .section{padding:56px 0;}
}
@media (max-width:640px){
  .grid-3,.grid-4,.steps,.reviews,.hero-stats{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .form-row{grid-template-columns:1fr;}
  .network{grid-template-columns:1fr;}
  .hero{padding:56px 0 52px;}
  .join-banner{padding:24px;}
  .join-banner .btn{width:100%;}
  .float-actions{right:12px;bottom:16px;}
  .kefu-panel{right:12px;bottom:142px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}