*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:#231a26;
  background-color:#fff8fb;
  background-image:
    radial-gradient(900px 520px at 6% -8%, #ffe1ee 0%, rgba(255,225,238,0) 62%),
    radial-gradient(760px 480px at 100% 2%, #ffe8dd 0%, rgba(255,232,221,0) 58%),
    linear-gradient(180deg,#fff9fc 0%,#ffffff 44%,#fff7fb 100%);
}
h1,h2,h3,h4{margin:0;color:#1f1622;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:#b80058;text-decoration:none;}
img{max-width:100%;}
button{font-family:inherit;}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(229,0,110,.1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:#1f1622;letter-spacing:.5px;}
.brand-sub{font-size:11px;letter-spacing:1.8px;color:#7b6b80;}
.ai-page-logo{display:block;width:auto;max-height:38px;}
.nav-links{display:flex;align-items:center;gap:0;margin:0;padding:0;list-style:none;}
.nav-links a{display:block;padding:8px 13px;font-size:14.5px;color:#4d3f52;border-radius:9px;transition:color .2s ease,background-color .2s ease;white-space:nowrap;}
.nav-links a:hover{color:#b80058;background:rgba(229,0,110,.07);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(229,0,110,.22);background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#b80058;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease;}
.btn-primary{background:linear-gradient(135deg,#ff5c9c 0%,#e5006e 58%,#c9005f 100%);color:#fff;box-shadow:0 12px 26px rgba(229,0,110,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(229,0,110,.34);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:#fff;color:#b80058;border-color:rgba(229,0,110,.3);box-shadow:0 8px 20px rgba(196,0,96,.07);}
.btn-ghost:hover{background:#fff2f7;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-nav{padding:10px 20px;font-size:14px;}

/* ---------- section base ---------- */
.section{padding:64px 0;}
.section-head{max-width:780px;margin-bottom:30px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;background:rgba(229,0,110,.08);color:#b80058;font-size:13px;font-weight:700;letter-spacing:.6px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:#e5006e;}
.section-head h2{font-size:clamp(23px,3.1vw,33px);margin:14px 0 12px;letter-spacing:-.4px;}
.section-head p{color:#4d3f52;font-size:15.5px;}
.card{background:#fff;border:1px solid rgba(229,0,110,.14);border-radius:20px;box-shadow:0 10px 30px rgba(196,0,96,.08);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(196,0,96,.16);border-color:rgba(229,0,110,.32);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 24px;}
.hero::before{content:"";position:absolute;width:560px;height:560px;right:-140px;top:-200px;border-radius:50%;background:radial-gradient(circle at 32% 32%,rgba(255,92,156,.34),rgba(255,138,92,.14) 58%,rgba(255,255,255,0) 72%);pointer-events:none;}
.hero::after{content:"";position:absolute;width:420px;height:420px;left:-180px;bottom:-220px;border-radius:50%;background:radial-gradient(circle at 50% 50%,rgba(255,197,220,.42),rgba(255,255,255,0) 70%);pointer-events:none;}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:start;}
.hero h1{font-size:clamp(30px,4.5vw,48px);letter-spacing:-1px;margin:16px 0 16px;}
.hero h1 .hl{color:#e5006e;}
.hero-sub{max-width:560px;color:#4d3f52;font-size:16.5px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;}
.hero-points li{position:relative;padding-left:22px;font-size:14.5px;color:#3f3344;}
.hero-points li::before{content:"✓";position:absolute;left:0;top:0;color:#e5006e;font-weight:800;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-panel{background:#fff;border:1px solid rgba(229,0,110,.16);border-radius:24px;padding:26px;box-shadow:0 20px 46px rgba(196,0,96,.12);position:relative;}
.hero-panel::before{content:"";position:absolute;inset:0;border-radius:24px;padding:1px;background:linear-gradient(150deg,rgba(255,92,156,.55),rgba(255,138,92,.25) 45%,rgba(255,255,255,0) 75%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
.panel-tag{display:inline-block;padding:3px 12px;border-radius:999px;background:rgba(229,0,110,.09);color:#b80058;font-size:12px;font-weight:700;letter-spacing:.6px;}
.hero-panel h2{font-size:19px;margin:12px 0 18px;}
.panel-list li{display:flex;gap:12px;padding:12px 0;border-top:1px dashed rgba(229,0,110,.16);}
.panel-list li:first-child{border-top:none;padding-top:0;}
.panel-dot{flex:0 0 10px;width:10px;height:10px;margin-top:9px;border-radius:50%;background:linear-gradient(135deg,#ff8a5c,#e5006e);}
.panel-list strong{display:block;font-size:15px;color:#1f1622;}
.panel-list p{font-size:13.5px;color:#6b5c70;margin-top:2px;}
.panel-link{display:inline-flex;margin-top:16px;font-size:14px;font-weight:700;color:#b80058;}
.panel-link:hover{color:#e5006e;}

.stat-row{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px;}
.stat{background:rgba(255,255,255,.86);border:1px solid rgba(229,0,110,.14);border-radius:18px;padding:20px 20px 18px;box-shadow:0 8px 24px rgba(196,0,96,.07);}
.stat-num{font-size:26px;font-weight:800;color:#e5006e;letter-spacing:-.5px;line-height:1.2;}
.stat-label{font-size:13.5px;color:#5b4f61;margin-top:4px;}

/* ---------- grids ---------- */
.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:18px;align-items:stretch;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start;}

.feature-card{padding:24px;}
.feature-card h3{font-size:17px;margin-bottom:8px;}
.feature-card p{font-size:14.5px;color:#5b4f61;}
.feature-card .num{display:inline-block;font-size:12px;font-weight:800;letter-spacing:1px;color:#e5006e;background:rgba(229,0,110,.08);border-radius:8px;padding:2px 9px;margin-bottom:10px;}

/* ---------- tag cloud ---------- */
.tag-block{margin-top:26px;padding:22px 24px;border-radius:20px;background:rgba(255,255,255,.82);border:1px solid rgba(229,0,110,.14);box-shadow:0 8px 24px rgba(196,0,96,.06);}
.tag-block h3{font-size:15px;color:#3f3344;margin-bottom:12px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud span{padding:5px 12px;border-radius:999px;background:#fff3f8;border:1px solid rgba(229,0,110,.16);color:#8a3a63;font-size:13px;transition:background-color .22s ease,color .22s ease,transform .22s ease;}
.tag-cloud span:hover{background:#e5006e;color:#fff;border-color:#e5006e;transform:translateY(-2px);}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px;}
.flow-item{padding:24px 22px;position:relative;overflow:hidden;}
.flow-item .step{font-size:13px;font-weight:800;letter-spacing:2px;color:#e5006e;}
.flow-item h3{font-size:16.5px;margin:8px 0 6px;}
.flow-item p{font-size:14px;color:#5b4f61;}

/* ---------- case ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.case-card{padding:14px;display:flex;flex-direction:column;}
.case-media{aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:#fff2f8;display:flex;align-items:center;justify-content:center;border:1px solid rgba(229,0,110,.1);}
.case-media img{width:100%;height:100%;object-fit:contain;}
.case-card h3{font-size:16px;margin:14px 4px 4px;}
.case-card p{font-size:13.5px;color:#5b4f61;margin:0 4px 8px;}

/* ---------- review ---------- */
.review-top{display:flex;gap:22px;align-items:stretch;margin-bottom:22px;flex-wrap:wrap;}
.rating-card{flex:0 0 220px;padding:22px;border-radius:22px;background:linear-gradient(150deg,#fff0f6,#ffe6ee 60%,#ffeede);border:1px solid rgba(229,0,110,.2);box-shadow:0 14px 34px rgba(196,0,96,.12);text-align:center;}
.rating-label{font-size:13px;color:#8a3a63;font-weight:700;letter-spacing:1px;}
.rating-score{font-size:44px;font-weight:800;color:#e5006e;line-height:1.1;margin:6px 0 2px;letter-spacing:-1px;}
.rating-score span{font-size:16px;color:#8a3a63;font-weight:700;letter-spacing:0;}
.rating-stars{font-size:19px;letter-spacing:3px;color:#ff9a00;line-height:1.2;}
.rating-text{font-size:13.5px;color:#5b4f61;font-weight:700;margin-top:4px;}
.review-points{flex:1 1 320px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;align-content:stretch;}
.review-points li{padding:18px 20px;border-radius:18px;background:#fff;border:1px solid rgba(229,0,110,.14);box-shadow:0 8px 22px rgba(196,0,96,.06);font-size:14px;color:#5b4f61;}
.review-points strong{display:block;font-size:15px;color:#e5006e;margin-bottom:4px;}

.table-wrap{overflow-x:auto;border-radius:18px;border:1px solid rgba(229,0,110,.14);background:#fff;box-shadow:0 10px 30px rgba(196,0,96,.08);-webkit-overflow-scrolling:touch;}
table{width:100%;border-collapse:collapse;min-width:760px;font-size:14.5px;}
th,td{padding:14px 18px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(229,0,110,.1);}
thead th{background:rgba(229,0,110,.07);color:#b80058;font-weight:800;white-space:nowrap;}
tbody tr:last-child td{border-bottom:none;}
tbody td:first-child{font-weight:700;color:#1f1622;white-space:nowrap;}
td strong{color:#e5006e;}

/* ---------- reviews ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.voice{padding:22px;display:flex;flex-direction:column;gap:12px;}
.voice-head{display:flex;align-items:center;gap:12px;}
.avatar{width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;background:linear-gradient(140deg,#ff8a5c,#e5006e);flex-shrink:0;}
.voice-name{font-size:15px;font-weight:700;color:#1f1622;line-height:1.3;}
.voice-role{font-size:12.5px;color:#7b6b80;}
.voice p{font-size:14px;color:#4d3f52;}

/* ---------- knowledge ---------- */
.knowledge-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:start;}
.wiki-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.wiki{padding:16px 18px;border-radius:16px;background:#fff;border:1px solid rgba(229,0,110,.13);box-shadow:0 6px 18px rgba(196,0,96,.05);}
.wiki strong{display:block;font-size:14.5px;color:#b80058;margin-bottom:3px;}
.wiki p{font-size:13px;color:#5b4f61;}
.article-list{display:flex;flex-direction:column;gap:10px;}
.article-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 20px;border-radius:16px;background:#fff;border:1px solid rgba(229,0,110,.13);box-shadow:0 6px 18px rgba(196,0,96,.05);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;}
.article-item:hover{transform:translateX(4px);box-shadow:0 12px 28px rgba(196,0,96,.13);border-color:rgba(229,0,110,.3);}
.article-item .art-title{font-size:14.5px;font-weight:700;color:#1f1622;display:block;}
.article-item .art-desc{font-size:12.5px;color:#7b6b80;display:block;margin-top:2px;}
.article-item .art-go{font-size:13px;font-weight:700;color:#e5006e;white-space:nowrap;}

/* ---------- faq ---------- */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.faq-item{background:#fff;border:1px solid rgba(229,0,110,.14);border-radius:16px;box-shadow:0 8px 22px rgba(196,0,96,.06);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item:hover{border-color:rgba(229,0,110,.3);box-shadow:0 12px 28px rgba(196,0,96,.11);}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 46px 16px 20px;font-size:15px;font-weight:700;color:#1f1622;position:relative;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;font-weight:700;color:#e5006e;transition:transform .25s ease;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding:0 20px 18px;font-size:14px;color:#5b4f61;}

/* ---------- join banner ---------- */
.join-bar{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:28px 30px;border-radius:24px;background:linear-gradient(120deg,#ffe9f2 0%,#ffe6ee 46%,#ffeadf 100%);border:1px solid rgba(229,0,110,.2);box-shadow:0 16px 38px rgba(196,0,96,.11);flex-wrap:wrap;}
.join-bar h3{font-size:20px;margin-bottom:6px;}
.join-bar p{font-size:14.5px;color:#5b4f61;max-width:640px;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:start;}
.form-card{padding:28px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:700;color:#3f3344;}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border-radius:12px;border:1px solid rgba(229,0,110,.22);background:#fffafc;color:#231a26;font-size:14.5px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;}
.field input::placeholder,.field textarea::placeholder{color:#a99aa8;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#e5006e;box-shadow:0 0 0 3px rgba(229,0,110,.12);}
.field textarea{resize:vertical;min-height:110px;}
.form-note{font-size:12.5px;color:#7b6b80;margin-top:12px;}
.form-btn{margin-top:18px;width:100%;}
.contact-card{padding:26px;}
.contact-card h3{font-size:17px;margin-bottom:14px;}
.contact-list li{display:flex;gap:10px;padding:9px 0;font-size:14px;color:#4d3f52;border-top:1px dashed rgba(229,0,110,.16);}
.contact-list li:first-child{border-top:none;}
.contact-list .k{flex:0 0 78px;color:#7b6b80;font-size:13.5px;}
.contact-list a{color:#b80058;font-weight:700;word-break:break-all;}
.qr-box{margin-top:16px;padding:14px;border-radius:16px;background:#fff3f8;border:1px solid rgba(229,0,110,.16);text-align:center;}
.qr-box img{width:150px;max-width:100%;height:auto;border-radius:10px;display:block;margin:0 auto 8px;background:#fff;}
.qr-box span{font-size:12.5px;color:#5b4f61;}

/* ---------- footer ---------- */
.site-footer{margin-top:8px;background:#fff6fa;border-top:1px solid rgba(229,0,110,.16);color:#4d3f52;}
.footer-inner{padding:36px 20px 26px;}
.footer-top{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:start;}
.footer-brand .brand-name{color:#1f1622;}
.footer-brand p{font-size:13.5px;color:#5b4f61;margin-top:12px;max-width:440px;}
.footer-contact p{font-size:13.5px;color:#4d3f52;padding:4px 0;}
.footer-contact a{color:#b80058;font-weight:700;}
.footer-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin-top:24px;padding-top:20px;border-top:1px dashed rgba(229,0,110,.2);font-size:13.5px;}
.footer-links .fl-title{color:#7b6b80;font-weight:700;}
.footer-links a{color:#b80058;}
.footer-links a:hover{color:#e5006e;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;align-items:center;margin-top:18px;font-size:13px;color:#6b5c70;}
.footer-bottom a{color:#b80058;}

/* ---------- float tools ---------- */
.float-tools{position:fixed;right:16px;bottom:20px;display:flex;flex-direction:column;gap:10px;z-index:70;}
.float-btn{width:52px;height:52px;border-radius:16px;border:1px solid rgba(229,0,110,.22);background:#fff;color:#b80058;font-size:12.5px;font-weight:800;cursor:pointer;box-shadow:0 10px 24px rgba(196,0,96,.18);transition:transform .24s ease,box-shadow .24s ease,background-color .24s ease;}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(196,0,96,.26);}
.float-btn.primary{background:linear-gradient(135deg,#ff5c9c,#e5006e);color:#fff;border-color:transparent;}
.kefu-panel{position:fixed;right:16px;bottom:142px;width:230px;background:#fff;border:1px solid rgba(229,0,110,.2);border-radius:18px;padding:14px;box-shadow:0 20px 44px rgba(196,0,96,.22);display:none;z-index:70;text-align:center;}
.kefu-panel.open{display:block;animation:pop .24s ease both;}
.kefu-panel img{width:100%;max-width:180px;height:auto;border-radius:10px;display:block;margin:0 auto 8px;}
.kefu-panel p{font-size:12.5px;color:#5b4f61;}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.96);}to{opacity:1;transform:none;}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .62s ease,transform .62s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .btn-nav{display:none;}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-top:1px solid rgba(229,0,110,.14);box-shadow:0 22px 40px rgba(196,0,96,.14);padding:8px 0;display:none;}
  .nav-links.open{display:flex;}
  .nav-links li{width:100%;}
  .nav-links a{padding:12px 24px;font-size:15px;border-radius:0;}
  .hero-inner{grid-template-columns:1fr;gap:30px;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .voice-grid{grid-template-columns:repeat(2,1fr);}
  .knowledge-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .faq-list{grid-template-columns:1fr;}
}
@media (max-width:720px){
  .section{padding:48px 0;}
  .hero{padding:40px 0 18px;}
  .grid-3,.case-grid,.voice-grid,.flow,.wiki-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr 1fr;gap:12px;}
  .stat{padding:16px;}
  .stat-num{font-size:22px;}
  .review-top{flex-direction:column;}
  .rating-card{flex:1 1 auto;}
  .form-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .join-bar{padding:22px;}
  .hero-actions .btn{flex:1 1 auto;}
  .float-tools{right:12px;bottom:14px;}
  .float-btn{width:46px;height:46px;border-radius:14px;font-size:12px;}
  .kefu-panel{right:12px;bottom:124px;width:200px;}
}

.reveal{opacity:1;transform:none;}