*{box-sizing:border-box;}
html{background:#fff7fa;scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:#2a1822;
  background:transparent;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 88% -6%, rgba(255,86,150,.20), rgba(255,86,150,0) 62%),
    radial-gradient(780px 560px at -8% 30%, rgba(255,150,190,.16), rgba(255,150,190,0) 62%),
    radial-gradient(1000px 720px at 50% 108%, rgba(255,120,175,.16), rgba(255,120,175,0) 66%),
    linear-gradient(180deg,#fff8fb 0%,#fff5f9 52%,#fff9fc 100%);
}
h1,h2,h3,h4{margin:0;line-height:1.3;color:#26151f;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:66px 0;}
section[id]{scroll-margin-top:88px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:#c2185b;background:#ffe6f0;border:1px solid #ffd0e0;
  border-radius:999px;padding:5px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:#e8367a;}
.sec-head{max-width:780px;margin-bottom:34px;}
.sec-head h2{font-size:clamp(23px,3vw,33px);margin:14px 0 10px;font-weight:800;}
.sec-sub{color:#5f4a56;font-size:15.5px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;border-radius:999px;font-weight:600;font-size:15px;
  padding:13px 28px;border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:linear-gradient(120deg,#ff3d86,#e01a63);color:#fff;box-shadow:0 16px 30px -14px rgba(224,26,99,.75);}
.btn-primary:hover{box-shadow:0 22px 40px -14px rgba(224,26,99,.85);}
.btn-ghost{background:#fff;color:#c2185b;border-color:#ffc7dc;}
.btn-ghost:hover{background:#ffeef5;border-color:#ff9dc4;}

/* header */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,250,252,.92);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(232,54,122,.14);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:70px;position:relative;
}
.brand{display:flex;align-items:center;flex:0 0 auto;max-width:150px;}
.ai-page-logo{width:132px;height:auto;}
.site-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap;}
.nav-links a{
  display:block;padding:8px 10px;font-size:14px;color:#4a323d;
  border-radius:10px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#c2185b;background:#ffe9f2;}
.header-cta{flex:0 0 auto;padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid #ffc7dc;background:#fff;cursor:pointer;
  align-items:center;justify-content:center;padding:0;flex:0 0 auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#c2185b;border-radius:2px;position:relative;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;
  background:#c2185b;border-radius:2px;transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.open span{background:transparent;}
.nav-toggle.open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span::after{transform:translateY(-6px) rotate(-45deg);}

/* hero */
.hero{padding:62px 0 34px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.hero-copy>*{animation:heroIn .8s cubic-bezier(.22,.8,.3,1) both;}
.hero-copy>*:nth-child(1){animation-delay:.04s;}
.hero-copy>*:nth-child(2){animation-delay:.12s;}
.hero-copy>*:nth-child(3){animation-delay:.2s;}
.hero-copy>*:nth-child(4){animation-delay:.28s;}
.hero-copy>*:nth-child(5){animation-delay:.36s;}
@keyframes heroIn{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:none;}}
.hero h1{
  font-size:clamp(29px,4.3vw,50px);
  font-weight:900;letter-spacing:-.02em;
  line-height:1.2;margin:18px 0 18px;
}
.hero h1 em{font-style:normal;color:#e01a63;}
.hero-lead{font-size:16.5px;color:#55404b;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags li{
  font-size:13.5px;color:#c2185b;background:#fff;
  border:1px solid #ffd3e3;border-radius:999px;padding:6px 15px;
  box-shadow:0 10px 24px -20px rgba(196,24,91,.9);
}
.hero-visual{position:relative;display:flex;flex-direction:column;gap:14px;padding:8px 0;}
.hero-visual::before{
  content:"";position:absolute;inset:-46px -34px;border-radius:50%;
  background:radial-gradient(circle at 55% 45%, rgba(255,90,150,.22), rgba(255,90,150,0) 70%);
  pointer-events:none;
}
.hv-card{
  position:relative;display:flex;align-items:flex-start;gap:14px;
  background:#fff;border:1px solid #ffd8e6;border-radius:16px;
  padding:16px 18px;box-shadow:0 24px 46px -32px rgba(196,24,91,.75);
  animation:floatY 6.5s ease-in-out infinite;
}
.hv-card:nth-child(2){animation-delay:-2.2s;}
.hv-card:nth-child(3){animation-delay:-4.4s;}
@keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-9px);}}
.hv-dot{
  width:12px;height:12px;border-radius:50%;flex:0 0 auto;margin-top:8px;
  background:linear-gradient(135deg,#ff5c97,#e01a63);
  box-shadow:0 0 0 5px rgba(255,92,151,.16);
}
.hv-title{font-size:15px;font-weight:700;color:#26151f;}
.hv-text{font-size:13.5px;color:#6b5260;margin-top:2px;}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:52px;}
.metric{
  background:#fff;border:1px solid #ffd8e6;border-radius:18px;
  padding:22px 20px;box-shadow:0 22px 42px -34px rgba(196,24,91,.8);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:0 28px 48px -30px rgba(196,24,91,.7);border-color:#ffb9d4;}
.metric strong{display:block;font-size:27px;font-weight:900;color:#e01a63;letter-spacing:-.02em;line-height:1.25;}
.metric span{display:block;font-size:13.5px;color:#5f4a56;margin-top:4px;}

/* feature */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.feature-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:20px;
  padding:26px 24px;box-shadow:0 26px 52px -40px rgba(196,24,91,.8);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:0 34px 62px -36px rgba(196,24,91,.7);border-color:#ffb3d1;}
.feature-card h3{font-size:18px;margin-bottom:10px;font-weight:700;}
.feature-card p{font-size:14.5px;color:#5f4a56;}
.fc-icon{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(135deg,#ff5c97,#e01a63);
  margin-bottom:16px;display:flex;align-items:center;justify-content:center;
}
.fc-icon::before{content:"";width:16px;height:16px;background:rgba(255,255,255,.94);border-radius:5px;}
.feature-card:nth-child(2) .fc-icon::before{border-radius:50%;}
.feature-card:nth-child(3) .fc-icon::before{transform:rotate(45deg);border-radius:3px;}
.feature-card:nth-child(4) .fc-icon::before{background:transparent;border:3px solid rgba(255,255,255,.94);border-radius:50%;}
.feature-card:nth-child(5) .fc-icon::before{width:9px;height:9px;border-radius:50%;box-shadow:0 0 0 5px rgba(255,255,255,.45);}
.feature-card:nth-child(6) .fc-icon::before{clip-path:polygon(50% 0,100% 100%,0 100%);border-radius:0;}

/* services */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.service-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:18px;
  padding:22px 20px;display:flex;flex-direction:column;gap:8px;
  box-shadow:0 22px 44px -38px rgba(196,24,91,.85);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.service-card:hover{transform:translateY(-5px);border-color:#ffb3d1;box-shadow:0 30px 54px -34px rgba(196,24,91,.7);}
.service-card h3{font-size:16px;font-weight:700;}
.service-card p{font-size:13.5px;color:#5f4a56;line-height:1.7;}

/* maker */
.maker-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.maker-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:20px;
  overflow:hidden;box-shadow:0 26px 52px -40px rgba(196,24,91,.8);
  transition:transform .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;
}
.maker-card:hover{transform:translateY(-6px);box-shadow:0 34px 62px -36px rgba(196,24,91,.7);}
.maker-media{background:#ffeef5;overflow:hidden;}
.maker-media img{width:100%;height:auto;transition:transform .6s ease;}
.maker-card:hover .maker-media img{transform:scale(1.04);}
.maker-body{padding:22px 22px 24px;}
.maker-body h3{font-size:17.5px;margin-bottom:10px;font-weight:700;}
.maker-body p{font-size:14px;color:#5f4a56;}
.tick-list{margin-top:14px;display:flex;flex-direction:column;gap:7px;}
.tick-list li{position:relative;padding-left:20px;font-size:13.5px;color:#4c3742;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;
  border-radius:3px;background:linear-gradient(135deg,#ff5c97,#e01a63);
}

/* solutions */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.solution-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:18px;
  padding:24px 22px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  box-shadow:0 22px 46px -40px rgba(196,24,91,.85);
}
.solution-card:hover{transform:translateY(-5px);border-color:#ffb3d1;box-shadow:0 30px 56px -34px rgba(196,24,91,.7);}
.solution-card h3{font-size:16.5px;margin-bottom:8px;font-weight:700;}
.solution-card p{font-size:14px;color:#5f4a56;}
.solution-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.solution-tags span{
  font-size:12.5px;color:#b3174f;background:#fff3f8;
  border:1px solid #ffd9e7;border-radius:999px;padding:3px 10px;
}

/* network */
.network-wrap{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:34px;
  background:linear-gradient(135deg,#fff2f8,#ffe7f1);
  border:1px solid #ffd0e2;border-radius:24px;padding:38px 34px;
  box-shadow:0 30px 60px -46px rgba(196,24,91,.9);
}
.network-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:12px;}
.network-copy p{font-size:14.8px;color:#5b4351;}
.network-list{display:grid;gap:14px;}
.network-list li{
  background:rgba(255,255,255,.86);border:1px solid #ffd9e7;
  border-radius:14px;padding:14px 18px;
  border-left:4px solid #e8367a;
}
.network-list strong{display:block;font-size:15px;color:#26151f;}
.network-list span{display:block;font-size:13.5px;color:#5f4a56;margin-top:2px;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{
  background:#fff;border:1px solid #ffdbe9;border-radius:18px;
  padding:24px 20px;position:relative;
  box-shadow:0 22px 46px -40px rgba(196,24,91,.85);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.step:hover{transform:translateY(-5px);border-color:#ffb3d1;box-shadow:0 30px 56px -34px rgba(196,24,91,.7);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,#ff5c97,#e01a63);color:#fff;
  font-size:14px;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:15.5px;margin-bottom:6px;font-weight:700;}
.step p{font-size:13.5px;color:#5f4a56;line-height:1.65;}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.case-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:20px;
  overflow:hidden;box-shadow:0 26px 52px -40px rgba(196,24,91,.8);
  transition:transform .3s ease,box-shadow .3s ease;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 34px 62px -36px rgba(196,24,91,.7);}
.case-media{background:#ffeef5;overflow:hidden;}
.case-media img{width:100%;height:auto;transition:transform .6s ease;}
.case-card:hover .case-media img{transform:scale(1.05);}
.case-body{padding:22px 24px 24px;}
.case-body h3{font-size:17.5px;margin-bottom:8px;font-weight:700;}
.case-body p{font-size:14px;color:#5f4a56;}

/* compare */
.compare-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:24px;align-items:start;}
.score-card{
  background:linear-gradient(150deg,#ff3d86,#c2185b 70%,#96134a);
  border-radius:22px;padding:32px 28px;color:#fff;
  box-shadow:0 34px 66px -40px rgba(196,24,91,.95);
  position:sticky;top:96px;
}
.score-stars{font-size:20px;letter-spacing:.16em;color:#ffe08f;}
.score-num{font-size:56px;font-weight:900;line-height:1.1;margin-top:12px;letter-spacing:-.03em;}
.score-num span{font-size:20px;font-weight:600;color:#ffd6e4;margin-left:4px;}
.score-label{font-size:14px;color:#ffd9e6;margin-top:4px;}
.score-desc{font-size:14px;color:#ffe8f0;margin-top:18px;border-top:1px solid rgba(255,255,255,.28);padding-top:16px;}
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid #ffdbe9;border-radius:18px;background:#fff;
  box-shadow:0 26px 52px -42px rgba(196,24,91,.85);
}
table{width:100%;border-collapse:collapse;min-width:700px;font-size:14.3px;}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #ffeef5;vertical-align:top;}
thead th{background:#fff2f8;color:#8a1246;font-weight:700;white-space:nowrap;font-size:14px;}
tbody tr:last-child td{border-bottom:none;}
tbody th{font-weight:600;color:#3b2430;background:#fffafc;white-space:nowrap;}
td.own{color:#c2185b;font-weight:600;background:#fff7fb;}

/* token */
.token-note{
  margin-top:16px;font-size:13.5px;color:#6b5260;
  background:#fff4f9;border:1px dashed #ffc9de;border-radius:12px;padding:12px 16px;
}

/* join */
.join-card{
  background:linear-gradient(135deg,#fff2f8,#ffe6f0);
  border:1px solid #ffd0e2;border-radius:24px;padding:38px 34px;
  display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
  box-shadow:0 30px 60px -46px rgba(196,24,91,.9);
}
.join-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:12px;}
.join-card p{font-size:14.8px;color:#5b4351;}
.join-list{display:grid;gap:12px;}
.join-list li{
  background:#fff;border:1px solid #ffd9e7;border-radius:14px;
  padding:14px 18px;font-size:14px;color:#4c3742;
}
.join-list strong{color:#c2185b;margin-right:6px;}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.review-card{
  background:#fff;border:1px solid #ffdbe9;border-radius:18px;
  padding:24px;display:flex;flex-direction:column;gap:16px;
  box-shadow:0 24px 48px -40px rgba(196,24,91,.85);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.review-card:hover{transform:translateY(-5px);border-color:#ffb3d1;box-shadow:0 32px 58px -36px rgba(196,24,91,.7);}
.review-quote{font-size:24px;line-height:1;color:#ffc2da;font-weight:900;}
.review-text{font-size:14.3px;color:#4c3742;}
.review-user{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,#ff7fa8,#e01a63);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;
}
.review-name{font-size:14px;font-weight:700;color:#26151f;line-height:1.4;}
.review-role{font-size:12.5px;color:#7a5c6a;}

/* faq */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  background:#fff;border:1px solid #ffdbe9;border-radius:16px;
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:#ff9dc4;box-shadow:0 24px 46px -38px rgba(196,24,91,.9);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;cursor:pointer;
  padding:18px 22px;text-align:left;font-size:15.3px;font-weight:600;color:#26151f;
  transition:color .2s ease;
}
.faq-q:hover{color:#c2185b;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:#ffe9f2;position:relative;transition:background .25s ease,transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;
  background:#c2185b;border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .25s ease;}
.faq-item.open .faq-icon{background:#ffd6e6;transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease;}
.faq-a p{padding:0 22px 20px;font-size:14.3px;color:#5f4a56;}

/* help + wiki */
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.help-panel,.wiki-panel{
  background:#fff;border:1px solid #ffdbe9;border-radius:20px;
  padding:28px 26px;box-shadow:0 26px 52px -42px rgba(196,24,91,.85);
}
.help-panel h3,.wiki-panel h3{font-size:18px;margin-bottom:16px;font-weight:700;}
.help-list{display:grid;gap:12px;}
.help-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.2px;color:#4c3742;padding-bottom:12px;
  border-bottom:1px dashed #ffe1ec;
}
.help-list li:last-child{border-bottom:none;padding-bottom:0;}
.help-list li::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,#ff5c97,#e01a63);
  flex:0 0 auto;margin-top:9px;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud span{
  font-size:13.5px;color:#c2185b;background:#fff4f9;
  border:1px solid #ffd3e3;border-radius:999px;padding:7px 15px;
  transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease;
  cursor:default;
}
.tag-cloud span:hover{background:#ffe3ef;color:#a01348;border-color:#ffaecf;transform:translateY(-2px);}

/* articles */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.article-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid #ffdbe9;border-radius:18px;
  padding:22px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  box-shadow:0 22px 46px -40px rgba(196,24,91,.85);
}
.article-card:hover{transform:translateY(-5px);border-color:#ffb3d1;box-shadow:0 30px 56px -34px rgba(196,24,91,.7);}
.article-card h3{font-size:15.5px;font-weight:700;line-height:1.55;}
.article-card .read-more{font-size:13px;color:#c2185b;font-weight:600;margin-top:auto;}
.article-card .read-more::after{content:" →";}

/* contact */
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:24px;align-items:start;}
.contact-info{
  background:#fff;border:1px solid #ffdbe9;border-radius:22px;
  padding:30px 26px;box-shadow:0 26px 52px -42px rgba(196,24,91,.85);
}
.contact-info h3{font-size:18px;margin-bottom:18px;font-weight:700;}
.contact-list{display:grid;gap:12px;}
.contact-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:14.2px;padding-bottom:12px;border-bottom:1px dashed #ffe1ec;
}
.contact-list li:last-child{border-bottom:none;padding-bottom:0;}
.contact-list span{color:#7a5c6a;flex:0 0 auto;}
.contact-list em{font-style:normal;color:#26151f;font-weight:600;text-align:right;}
.contact-list a{color:#c2185b;font-weight:600;}
.contact-list a:hover{text-decoration:underline;}
.qrcode{margin-top:22px;display:flex;align-items:center;gap:16px;}
.qrcode img{width:118px;height:auto;border-radius:12px;border:1px solid #ffd9e7;background:#fff;padding:6px;}
.qrcode p{font-size:13.5px;color:#5f4a56;}
.contact-form{
  background:#fff;border:1px solid #ffdbe9;border-radius:22px;
  padding:30px 26px;box-shadow:0 26px 52px -42px rgba(196,24,91,.85);
  display:grid;gap:16px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:13.5px;color:#7a5c6a;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid #ffd6e4;border-radius:12px;
  font-size:15px;font-family:inherit;color:#2a1822;background:#fffafc;
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:120px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:#ff7fae;background:#fff;box-shadow:0 0 0 3px rgba(255,127,174,.18);
}
.form-submit{justify-self:start;padding:13px 34px;}
.form-tip{font-size:12.8px;color:#8a7080;}

/* footer */
.site-footer{
  background:linear-gradient(135deg,#2c0f20,#4a0f2c 58%,#5c1235);
  color:#f6d7e4;padding:50px 0 24px;margin-top:0;
}
.footer-top{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;}
.footer-logo{width:130px;height:auto;margin-bottom:16px;filter:brightness(0) invert(1);opacity:.94;}
.footer-brand p{font-size:14px;color:#f0c8da;max-width:420px;}
.footer-mail{font-size:14px;color:#ffc0d8;margin-top:12px;font-weight:600;}
.footer-links h3{font-size:15.5px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-links ul{display:flex;flex-wrap:wrap;gap:10px;}
.footer-links a{
  display:inline-block;font-size:13.5px;color:#ffd2e3;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:6px 14px;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.footer-links a:hover{background:#e8367a;color:#fff;border-color:#e8367a;transform:translateY(-2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  border-top:1px solid rgba(255,255,255,.16);margin-top:34px;padding-top:20px;
}
.footer-bottom p{font-size:13px;color:#e7bcd0;}
.footer-bottom a{font-size:13px;color:#ffc0d8;font-weight:600;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}

/* float tools */
.float-tools{position:fixed;right:18px;bottom:26px;z-index:180;display:flex;flex-direction:column;gap:12px;}
.float-btn{
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid #ffd0e2;color:#c2185b;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 16px 32px -16px rgba(196,24,91,.65);
  transition:transform .25s ease,background .25s ease,box-shadow .25s ease;
}
.float-btn:hover{transform:translateY(-3px);background:#ffe9f2;box-shadow:0 22px 38px -16px rgba(196,24,91,.7);}

/* reveal */
html.js .reveal{opacity:0;transform:translateY(24px);}
html.js .reveal.in{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease;}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  html.js .reveal{opacity:1;transform:none;}
}

@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-width:520px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .feature-grid,.service-grid,.solution-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .maker-grid{grid-template-columns:repeat(2,1fr);}
  .compare-grid{grid-template-columns:1fr;}
  .score-card{position:static;}
  .network-wrap,.join-card,.contact-grid,.help-grid{grid-template-columns:1fr;gap:24px;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .site-nav{
    position:absolute;top:100%;left:-20px;right:-20px;
    background:#fffafc;border-bottom:1px solid #ffd8e6;
    box-shadow:0 26px 44px -30px rgba(196,24,91,.55);
    display:none;padding:8px 20px 16px;justify-content:flex-start;
  }
  .site-nav.open{display:block;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;width:100%;}
  .nav-links a{padding:13px 10px;font-size:15px;border-radius:0;border-bottom:1px solid #ffeef5;}
  .nav-links li:last-child a{border-bottom:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:720px){
  .section{padding:52px 0;}
  .hero{padding:44px 0 26px;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:38px;}
  .feature-grid,.service-grid,.solution-grid,.review-grid,.article-grid,.maker-grid,.case-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .ai-page-logo{width:112px;}
  .header-inner{min-height:62px;gap:10px;}
  .header-cta{padding:8px 15px;font-size:13px;}
  .hero-lead{font-size:15.5px;}
  .network-wrap,.join-card,.help-panel,.wiki-panel,.contact-info,.contact-form,.score-card{padding:26px 20px;}
  .float-tools{right:12px;bottom:18px;}
  .float-btn{width:44px;height:44px;}
  .footer-links ul{gap:8px;}
}
@media (max-width:430px){
  .hero-actions .btn{width:100%;}
  .qrcode{flex-direction:column;align-items:flex-start;gap:10px;}
}