*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:#0F1B2D;
  background-color:#F6F8FF;
  background-image:
    radial-gradient(1000px 520px at 88% -140px, rgba(47,107,255,.16), transparent 68%),
    radial-gradient(760px 480px at -8% 4%, rgba(255,107,53,.12), transparent 70%),
    linear-gradient(180deg,#F8FAFF 0%,#F1F5FF 45%,#ECF1FF 100%);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid #E3E9F6;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:72px;padding-top:8px;padding-bottom:8px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:800;font-size:19px;color:#0B1730;}
.ai-page-logo{max-height:38px;width:auto;}
.brand-text{white-space:nowrap;}
.nav{display:flex;align-items:center;gap:0;}
.nav-links{display:flex;align-items:center;gap:0;}
.nav-links a{
  display:block;padding:8px 10px;font-size:14.5px;color:#54637A;
  border-radius:999px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#2F6BFF;background:rgba(47,107,255,.08);}
.nav-cta{
  margin-left:12px;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,#2F6BFF,#5B8CFF);color:#fff;
  font-size:14.5px;font-weight:700;white-space:nowrap;
  box-shadow:0 10px 22px rgba(47,107,255,.3);
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(47,107,255,.38);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid #E3E9F6;
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#2F6BFF;transition:.25s;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:16px;font-weight:700;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn-primary{background:linear-gradient(135deg,#2F6BFF,#5B8CFF);color:#fff;box-shadow:0 14px 30px rgba(47,107,255,.32);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(47,107,255,.42);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-accent{background:linear-gradient(135deg,#FF7A45,#FF5A2D);color:#fff;box-shadow:0 14px 30px rgba(255,107,53,.32);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,107,53,.42);}
.btn-accent:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:#fff;color:#1B4DD8;border-color:rgba(47,107,255,.35);box-shadow:0 10px 26px rgba(20,45,100,.08);}
.btn-ghost:hover{background:rgba(47,107,255,.08);transform:translateY(-2px);}

/* ---------- sections ---------- */
.section{padding:76px 0;}
.sec-head{max-width:780px;margin:0 auto 42px;text-align:center;}
.sec-tag{
  display:inline-block;padding:6px 16px;border-radius:999px;
  background:rgba(47,107,255,.09);color:#1B4DD8;
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.sec-title{font-size:clamp(24px,3.2vw,34px);font-weight:800;color:#0B1730;margin:16px 0 12px;letter-spacing:-.01em;}
.sec-desc{font-size:15.5px;color:#54637A;}

/* ---------- hero ---------- */
.hero{padding:66px 0 58px;position:relative;overflow:hidden;}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:#fff;border:1px solid rgba(47,107,255,.28);color:#1B4DD8;
  font-size:13px;font-weight:700;box-shadow:0 8px 20px rgba(47,107,255,.12);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:#FF6B35;}
.hero h1{font-size:clamp(30px,4vw,46px);font-weight:800;color:#0B1730;margin:20px 0 16px;letter-spacing:-.02em;}
.hero h1 .hl{color:#2F6BFF;}
.hero-sub{font-size:17px;color:#54637A;max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 20px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:#54637A;}
.hero-points li{display:flex;align-items:center;gap:6px;}
.hero-points li::before{content:"✓";color:#2F6BFF;font-weight:800;}
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center;min-height:360px;}
.orb{position:absolute;border-radius:50%;filter:blur(34px);}
.orb-1{width:230px;height:230px;background:rgba(47,107,255,.38);top:-26px;right:-6px;}
.orb-2{width:190px;height:190px;background:rgba(255,107,53,.32);bottom:-24px;left:-16px;}
.hero-panel{
  position:relative;z-index:2;width:100%;max-width:430px;background:#fff;
  border:1px solid #E3E9F6;border-radius:24px;padding:22px;
  box-shadow:0 30px 60px rgba(20,45,100,.14);
  animation:floaty 8s ease-in-out infinite;
}
.panel-head{display:flex;align-items:center;gap:7px;margin-bottom:16px;}
.panel-head .dot{width:8px;height:8px;border-radius:50%;background:#D8E1F5;}
.panel-head .dot:nth-child(1){background:#FF6B35;}
.panel-head .dot:nth-child(2){background:#FFC24B;}
.panel-head .dot:nth-child(3){background:#2F6BFF;}
.panel-title{margin-left:8px;font-size:13.5px;font-weight:700;color:#54637A;}
.model-chips{display:flex;flex-wrap:wrap;gap:8px;}
.model-chips span{
  padding:6px 12px;border-radius:999px;background:#F2F6FF;
  color:#1B4DD8;font-size:12.5px;font-weight:600;border:1px solid #E1EAFB;
}
.panel-flow{display:flex;align-items:center;gap:6px;margin-top:18px;}
.flow-step{
  flex:1;padding:9px 6px;border-radius:12px;background:rgba(47,107,255,.09);
  color:#1B4DD8;font-size:12.5px;font-weight:700;text-align:center;white-space:nowrap;
}
.flow-arrow{color:#B9C6E2;font-size:14px;font-weight:700;}
@keyframes floaty{0%,100%{transform:translateY(0);}50%{transform:translateY(-13px);}}
@keyframes riseIn{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:none;}}
.hero-copy > *{animation:riseIn .7s ease both;}
.hero-copy > *:nth-child(1){animation-delay:.05s;}
.hero-copy > *:nth-child(2){animation-delay:.13s;}
.hero-copy > *:nth-child(3){animation-delay:.21s;}
.hero-copy > *:nth-child(4){animation-delay:.29s;}
.hero-copy > *:nth-child(5){animation-delay:.37s;}

/* ---------- stats ---------- */
.stats{padding-bottom:10px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat{
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;
  padding:22px 18px;text-align:center;box-shadow:0 10px 30px rgba(20,45,100,.07);
  transition:transform .25s,box-shadow .25s;
}
.stat:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(20,45,100,.12);}
.stat strong{display:block;font-size:26px;font-weight:800;color:#2F6BFF;letter-spacing:-.02em;}
.stat span{display:block;margin-top:4px;font-size:14px;color:#54637A;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start;}
.about-text p{color:#54637A;font-size:15.5px;margin-bottom:16px;}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.about-tags span{
  padding:7px 14px;border-radius:10px;background:#fff;border:1px solid #E3E9F6;
  font-size:13.5px;color:#1B4DD8;font-weight:600;
}
.about-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.about-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;padding:18px;
  box-shadow:0 10px 26px rgba(20,45,100,.06);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.about-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(20,45,100,.11);border-color:rgba(47,107,255,.3);}
.about-card h3{font-size:15.5px;font-weight:800;color:#0B1730;margin-bottom:6px;}
.about-card p{font-size:13.5px;color:#6B7A93;line-height:1.6;}

/* ---------- services ---------- */
.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:20px;}
.service-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid #E3E9F6;
  border-radius:16px;padding:24px 22px;box-shadow:0 10px 28px rgba(20,45,100,.06);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.service-card::before{
  content:"";position:absolute;left:22px;top:0;width:44px;height:3px;border-radius:0 0 4px 4px;
  background:linear-gradient(90deg,#2F6BFF,#7AA6FF);
  transition:width .3s ease;
}
.service-card:nth-child(3n+2)::before{background:linear-gradient(90deg,#FF7A45,#FFB08A);}
.service-card:nth-child(3n)::before{background:linear-gradient(90deg,#1FC8B0,#7BE0D2);}
.service-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(20,45,100,.13);border-color:rgba(47,107,255,.28);}
.service-card:hover::before{width:64px;}
.service-card h3{font-size:17px;font-weight:800;color:#0B1730;margin:10px 0 8px;}
.service-card p{font-size:14px;color:#5D6C85;line-height:1.65;}
.more-tags{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.more-tags span{
  padding:8px 15px;border-radius:999px;background:rgba(47,107,255,.08);
  color:#1B4DD8;font-size:13.5px;font-weight:600;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;padding:24px 20px;
  box-shadow:0 10px 28px rgba(20,45,100,.06);transition:transform .25s,box-shadow .25s;
}
.step:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(20,45,100,.12);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:12px;background:linear-gradient(135deg,#2F6BFF,#5B8CFF);color:#fff;
  font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;
}
.step:nth-child(2) .step-num{background:linear-gradient(135deg,#FF7A45,#FF5A2D);}
.step:nth-child(3) .step-num{background:linear-gradient(135deg,#1FC8B0,#38DDC4);}
.step:nth-child(4) .step-num{background:linear-gradient(135deg,#7B61FF,#A38BFF);}
.step h3{font-size:16px;font-weight:800;color:#0B1730;margin-bottom:8px;}
.step p{font-size:13.5px;color:#5D6C85;line-height:1.65;}

/* ---------- solutions ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.solution-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:26px 24px;
  box-shadow:0 10px 28px rgba(20,45,100,.06);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.solution-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(20,45,100,.13);border-color:rgba(47,107,255,.28);}
.solution-card h3{font-size:17px;font-weight:800;color:#0B1730;margin-bottom:12px;}
.solution-card ul{display:grid;gap:8px;}
.solution-card li{
  position:relative;padding-left:18px;font-size:14px;color:#5D6C85;line-height:1.6;
}
.solution-card li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
  background:#2F6BFF;transform:rotate(45deg);
}

/* ---------- network ---------- */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.network-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;padding:22px 20px;
  box-shadow:0 10px 26px rgba(20,45,100,.06);
}
.network-card h3{font-size:15.5px;font-weight:800;color:#0B1730;margin-bottom:8px;}
.network-card p{font-size:13.5px;color:#5D6C85;line-height:1.65;word-break:break-word;}
.network-note{
  margin-top:22px;padding:18px 22px;border-radius:14px;
  background:rgba(47,107,255,.07);border:1px dashed rgba(47,107,255,.3);
  font-size:14px;color:#3A4A63;
}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.case-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;overflow:hidden;
  box-shadow:0 10px 28px rgba(20,45,100,.07);transition:transform .25s,box-shadow .25s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(20,45,100,.14);}
.case-media{width:100%;aspect-ratio:4/3;overflow:hidden;background:#F2F6FF;}
.case-media img{width:100%;height:100%;object-fit:cover;}
.case-body{padding:20px 22px;}
.case-body h3{font-size:16.5px;font-weight:800;color:#0B1730;margin-bottom:6px;}
.case-body p{font-size:13.5px;color:#5D6C85;line-height:1.65;}
.case-wide{grid-column:span 2;}
.case-wide .case-media{aspect-ratio:16/9;}
.banner-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px;}
.banner-strip .banner-item{
  border-radius:14px;overflow:hidden;border:1px solid #E3E9F6;background:#fff;
  box-shadow:0 8px 22px rgba(20,45,100,.07);
}
.banner-strip img{width:100%;height:auto;transition:transform .4s ease;}
.banner-strip .banner-item:hover img{transform:scale(1.05);}

/* ---------- review ---------- */
.review-top{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:stretch;margin-bottom:26px;}
.score-card{
  background:linear-gradient(150deg,#2F6BFF,#5B8CFF 60%,#7BA6FF);
  border-radius:20px;padding:32px 28px;color:#fff;box-shadow:0 22px 50px rgba(47,107,255,.32);
  display:flex;flex-direction:column;justify-content:center;gap:10px;
}
.score-card .score-num{font-size:56px;font-weight:800;line-height:1;letter-spacing:-.03em;}
.score-card .score-num small{font-size:18px;font-weight:600;opacity:.85;}
.score-card .stars{font-size:20px;letter-spacing:4px;color:#FFE07A;}
.score-card .score-label{font-size:14.5px;opacity:.95;}
.score-card .score-tip{font-size:13.5px;opacity:.88;line-height:1.6;}
.review-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.review-point{
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;padding:18px 20px;
  box-shadow:0 10px 26px rgba(20,45,100,.06);
}
.review-point h3{font-size:15px;font-weight:800;color:#0B1730;margin-bottom:6px;}
.review-point p{font-size:13.5px;color:#5D6C85;line-height:1.6;}
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;
  box-shadow:0 12px 32px rgba(20,45,100,.08);
}
table{width:100%;border-collapse:collapse;min-width:720px;}
thead th{
  background:#F3F7FF;color:#1B4DD8;font-size:14px;font-weight:800;
  text-align:left;padding:15px 18px;border-bottom:1px solid #E3E9F6;white-space:nowrap;
}
thead th.hl{background:rgba(47,107,255,.14);color:#12318F;}
tbody td{
  padding:14px 18px;font-size:14px;color:#4A5A73;border-bottom:1px solid #EDF1FA;
  vertical-align:top;line-height:1.6;
}
tbody tr:last-child td{border-bottom:none;}
tbody td:first-child{font-weight:700;color:#0B1730;white-space:nowrap;}
tbody td.hl{background:rgba(47,107,255,.06);color:#12318F;font-weight:600;}
tbody tr:hover td{background:#FAFCFF;}
tbody tr:hover td.hl{background:rgba(47,107,255,.1);}

/* ---------- token ---------- */
.token-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.token-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:26px 24px;
  box-shadow:0 12px 32px rgba(20,45,100,.07);
}
.token-card h3{font-size:17px;font-weight:800;color:#0B1730;margin-bottom:12px;}
.token-card p{font-size:14px;color:#5D6C85;line-height:1.7;}
.token-list{display:grid;gap:12px;margin-top:16px;}
.token-list li{
  display:flex;gap:10px;font-size:14px;color:#4A5A73;line-height:1.6;
}
.token-list li::before{
  content:"·";color:#2F6BFF;font-weight:800;font-size:22px;line-height:1;
}
.model-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px;}
.model-cloud span{
  padding:7px 13px;border-radius:999px;background:#F2F6FF;border:1px solid #E1EAFB;
  color:#1B4DD8;font-size:13px;font-weight:600;transition:background .2s,transform .2s;
}
.model-cloud span:hover{background:#E4EDFF;transform:translateY(-2px);}

/* ---------- comments ---------- */
.comment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.comment-card{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:24px 22px;
  box-shadow:0 10px 28px rgba(20,45,100,.06);
  transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;gap:14px;
}
.comment-card:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(20,45,100,.13);}
.comment-text{font-size:14px;color:#4A5A73;line-height:1.75;flex:1;}
.comment-user{display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid #EDF1FA;}
.avatar{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2F6BFF,#7BA6FF);color:#fff;font-weight:800;font-size:15px;flex-shrink:0;
}
.comment-card:nth-child(2) .avatar{background:linear-gradient(135deg,#FF7A45,#FFB08A);}
.comment-card:nth-child(3) .avatar{background:linear-gradient(135deg,#1FC8B0,#7BE0D2);}
.comment-card:nth-child(4) .avatar{background:linear-gradient(135deg,#7B61FF,#A38BFF);}
.comment-card:nth-child(5) .avatar{background:linear-gradient(135deg,#2F6BFF,#5B8CFF);}
.comment-card:nth-child(6) .avatar{background:linear-gradient(135deg,#FF7A45,#FFB08A);}
.comment-user strong{display:block;font-size:14px;color:#0B1730;}
.comment-user span{display:block;font-size:12.5px;color:#7C8AA3;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid #E3E9F6;border-radius:14px;
  box-shadow:0 8px 22px rgba(20,45,100,.05);overflow:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.faq-item[open]{border-color:rgba(47,107,255,.35);box-shadow:0 14px 34px rgba(20,45,100,.1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 54px 18px 22px;position:relative;
  font-size:15.5px;font-weight:700;color:#0B1730;transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;background:rgba(47,107,255,.1);
  color:#1B4DD8;font-size:17px;font-weight:700;line-height:26px;text-align:center;
  transition:transform .25s,background .25s;
}
.faq-item[open] summary::after{content:"−";background:#2F6BFF;color:#fff;}
.faq-item summary:hover{color:#1B4DD8;}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:#5D6C85;line-height:1.75;}

/* ---------- wiki & news ---------- */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.panel{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:26px 24px;
  box-shadow:0 12px 32px rgba(20,45,100,.07);
}
.panel h3{font-size:18px;font-weight:800;color:#0B1730;margin-bottom:14px;}
.panel p{font-size:14px;color:#5D6C85;line-height:1.7;}
.wiki-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.wiki-tags span{
  padding:8px 14px;border-radius:10px;background:#F2F6FF;border:1px solid #E1EAFB;
  color:#1B4DD8;font-size:13px;font-weight:600;
}
.article-feed{
  margin-top:14px;padding:18px;border-radius:12px;background:#F8FAFF;
  border:1px dashed #D3DEF4;font-size:14px;color:#3A4A63;line-height:1.7;word-break:break-word;
}

/* ---------- partner ---------- */
.partner-wrap{
  background:linear-gradient(135deg,#FFFFFF,#F3F7FF 60%,#EDF3FF);
  border:1px solid #DCE6FA;border-radius:22px;padding:36px 32px;
  box-shadow:0 18px 44px rgba(20,45,100,.1);
}
.partner-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px;}
.partner-item{
  background:#fff;border:1px solid #E3E9F6;border-radius:14px;padding:20px;
}
.partner-item h3{font-size:15.5px;font-weight:800;color:#0B1730;margin-bottom:6px;}
.partner-item p{font-size:13.5px;color:#5D6C85;line-height:1.65;}
.partner-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start;}
.contact-info{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:28px 26px;
  box-shadow:0 12px 32px rgba(20,45,100,.07);
}
.contact-info h3{font-size:18px;font-weight:800;color:#0B1730;margin-bottom:14px;}
.contact-list{display:grid;gap:12px;}
.contact-list li{
  display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:#4A5A73;line-height:1.6;
}
.contact-list li b{color:#0B1730;font-weight:700;}
.contact-list li a{color:#1B4DD8;font-weight:600;word-break:break-all;}
.contact-list li a:hover{text-decoration:underline;}
.qr-box{
  margin-top:20px;display:flex;align-items:center;gap:16px;padding:16px;
  border-radius:14px;background:#F5F9FF;border:1px solid #E1EAFB;
}
.qr-box img{width:110px;border-radius:10px;flex-shrink:0;}
.qr-box p{font-size:13.5px;color:#4A5A73;line-height:1.6;}
.contact-form{
  background:#fff;border:1px solid #E3E9F6;border-radius:18px;padding:28px 26px;
  box-shadow:0 12px 32px rgba(20,45,100,.07);
}
.contact-form h3{font-size:18px;font-weight:800;color:#0B1730;margin-bottom:6px;}
.form-tip{font-size:13.5px;color:#6B7A93;margin-bottom:18px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:700;color:#33415C;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:11px;border:1px solid #DCE4F3;
  background:#FBFDFF;font-size:14.5px;color:#0F1B2D;font-family:inherit;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#2F6BFF;background:#fff;
  box-shadow:0 0 0 3px rgba(47,107,255,.15);
}
.field textarea{min-height:110px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-submit{width:100%;margin-top:4px;}
.form-note{font-size:12.5px;color:#8794AC;margin-top:12px;line-height:1.6;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;background:#FFFFFF;border-top:1px solid #E3E9F6;
  color:#0F1B2D;
}
.footer-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;
  padding-top:46px;padding-bottom:34px;
}
.footer-brand p{font-size:14px;color:#54637A;margin-top:12px;line-height:1.7;}
.footer-brand .footer-meta{font-size:13.5px;color:#54637A;margin-top:6px;}
.footer-brand .footer-meta a{color:#1B4DD8;font-weight:600;}
.footer-brand .footer-meta a:hover{text-decoration:underline;}
.footer-links h3{font-size:15px;font-weight:800;color:#0B1730;margin-bottom:14px;}
.friend-links{display:flex;flex-wrap:wrap;gap:10px 18px;}
.friend-links a{
  font-size:13.5px;color:#54637A;transition:color .2s;
}
.friend-links a:hover{color:#2F6BFF;}
.footer-bottom{
  border-top:1px solid #EDF1FA;background:#FAFCFF;color:#54637A;
}
.footer-bottom .container{
  padding-top:16px;padding-bottom:16px;font-size:13px;text-align:center;color:#5D6C85;
}

/* ---------- floating ---------- */
.float-tools{position:fixed;right:20px;bottom:24px;z-index:150;display:flex;flex-direction:column;gap:12px;align-items:flex-end;}
.float-btn{
  width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2F6BFF,#5B8CFF);color:#fff;
  font-size:13px;font-weight:800;box-shadow:0 14px 30px rgba(47,107,255,.35);
  transition:transform .2s,box-shadow .2s,opacity .2s;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(47,107,255,.45);}
.float-btn.ghost{background:#fff;color:#1B4DD8;border:1px solid #DCE4F3;box-shadow:0 10px 24px rgba(20,45,100,.12);}
#backTop{opacity:0;pointer-events:none;transform:translateY(8px);}
#backTop.show{opacity:1;pointer-events:auto;transform:none;}
.kefu-panel{
  position:fixed;right:20px;bottom:88px;z-index:160;width:240px;
  background:#fff;border:1px solid #E3E9F6;border-radius:16px;padding:18px;
  box-shadow:0 22px 50px rgba(20,45,100,.18);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s,transform .25s;
}
.kefu-panel.open{opacity:1;pointer-events:auto;transform:none;}
.kefu-panel h4{font-size:14.5px;font-weight:800;color:#0B1730;margin-bottom:8px;}
.kefu-panel img{width:100%;max-width:180px;border-radius:10px;margin:0 auto 10px;}
.kefu-panel p{font-size:12.5px;color:#5D6C85;line-height:1.65;word-break:break-all;}
.kefu-panel p + p{margin-top:4px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .nav-toggle{display:flex;}
  .nav{
    position:fixed;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:10px 20px 22px;
    border-bottom:1px solid #E3E9F6;
    box-shadow:0 22px 44px rgba(20,45,100,.14);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    max-height:calc(100vh - 90px);overflow-y:auto;
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-links a{padding:13px 6px;border-bottom:1px solid #EDF1FA;border-radius:0;font-size:15px;}
  .nav-cta{margin-left:0;margin-top:16px;text-align:center;}
  .hero-inner{grid-template-columns:1fr;gap:38px;}
  .hero-visual{min-height:300px;}
  .about-grid{grid-template-columns:1fr;}
  .token-layout{grid-template-columns:1fr;}
  .review-top{grid-template-columns:1fr;}
  .comment-grid{grid-template-columns:repeat(2,1fr);}
  .solution-grid{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .case-wide{grid-column:span 2;}
  .network-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .partner-grid{grid-template-columns:repeat(2,1fr);}
  .banner-strip{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .section{padding:54px 0;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .split-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;gap:26px;padding-top:36px;}
  .review-points{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .hero{padding:44px 0 40px;}
  .hero-actions .btn{width:100%;}
  .comment-grid{grid-template-columns:1fr;}
  .solution-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .case-wide{grid-column:span 1;}
  .steps{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .score-card .score-num{font-size:46px;}
  .qr-box{flex-direction:column;align-items:flex-start;}
  .kefu-panel{width:calc(100vw - 40px);max-width:280px;}
  .float-tools{right:14px;bottom:16px;}
  .about-cards{grid-template-columns:1fr;}
  .banner-strip{grid-template-columns:1fr 1fr;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .hero-panel{animation:none;}
  .hero-copy > *{animation:none;}
  html{scroll-behavior:auto;}
}