*{margin:0;padding:0;box-sizing:border-box}
:root{
  --brand:#ff2e63;--brand2:#ff8a3d;--brand3:#7b2ff7;--ink:#0d1024;--ink2:#4a4f6a;
  --bg:#f6f7fb;--card:#ffffff;--line:#e8eaf2;--maxw:1200px;
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:70px 0}
h1,h2,h3{line-height:1.3;letter-spacing:.5px}
.sec-head{text-align:center;margin-bottom:44px}
.sec-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(255,46,99,.1);padding:5px 14px;border-radius:20px;margin-bottom:14px;letter-spacing:1px}
.sec-head h2{font-size:34px;font-weight:800;margin-bottom:12px}
.sec-head p{color:var(--ink2);max-width:720px;margin:0 auto;font-size:15.5px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:50px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:.25s;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 8px 22px rgba(255,46,99,.32)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(255,46,99,.42)}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15)}
.btn-ghost{background:#fff;border:1.5px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ===== NAV ===== */
header{position:sticky;top:0;z-index:99;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo-area{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-area img{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:0;list-style:none}
.nav-links a{display:block;padding:8px 14px;font-size:14.5px;font-weight:600;color:var(--ink2);border-radius:8px;transition:.2s}
.nav-links a:hover{color:var(--brand);background:rgba(255,46,99,.07)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{padding:9px 20px;font-size:14px}
.menu-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--ink)}
@media(max-width:1080px){
  .nav-links{position:fixed;top:66px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px;gap:0;border-bottom:1px solid var(--line);box-shadow:0 12px 30px rgba(0,0,0,.08);max-height:0;overflow:hidden;transition:max-height .3s,padding .3s}
  .nav-links.open{max-height:520px;overflow:auto;padding:12px}
  .nav-links a{padding:12px 14px}
  .menu-toggle{display:block}
  .nav-cta .btn-outline{display:none}
}
@media(max-width:480px){.nav-cta .btn{display:none}}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 20% 10%,#2a1150 0%,#0d1024 45%,#0a0d1f 100%);color:#fff;padding:90px 0 100px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;pointer-events:none}
.hero::before{width:420px;height:420px;background:var(--brand);top:-120px;right:-80px}
.hero::after{width:380px;height:380px;background:var(--brand3);bottom:-140px;left:-100px}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:7px 16px;border-radius:30px;font-size:13px;font-weight:600;margin-bottom:22px}
.hero-badge span{width:8px;height:8px;border-radius:50%;background:#3ef0a0;box-shadow:0 0 10px #3ef0a0}
.hero h1{font-size:46px;font-weight:800;margin-bottom:20px;letter-spacing:1px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lead{font-size:16.5px;color:rgba(255,255,255,.78);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:600px}
.hero-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 12px;text-align:center;transition:.25s}
.hero-stat:hover{transform:translateY(-4px);background:rgba(255,46,99,.16);border-color:rgba(255,46,99,.4)}
.hero-stat b{display:block;font-size:24px;font-weight:800;background:linear-gradient(120deg,#fff,var(--brand2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stat span{font-size:12px;color:rgba(255,255,255,.65)}
.hero-visual{position:relative;display:flex;flex-direction:column;gap:14px}
.hero-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:18px;padding:18px 20px;backdrop-filter:blur(6px)}
.hero-panel h4{font-size:14px;color:rgba(255,255,255,.6);font-weight:600;margin-bottom:12px}
.model-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;padding:5px 12px;border-radius:20px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.9)}
.chip.hot{background:linear-gradient(120deg,var(--brand),var(--brand2));border:none;font-weight:700}
.progress-row{display:flex;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px}
.bar{height:8px;border-radius:6px;background:rgba(255,255,255,.12);overflow:hidden}
.bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--brand2))}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:34px}
  .hero{padding:64px 0 70px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){.hero h1{font-size:27px}.hero-visual{display:none}}

/* ===== CARDS / GRIDS ===== */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;transition:.28s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(13,16,36,.1);border-color:rgba(255,46,99,.35)}
.card .ico{width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(255,46,99,.13),rgba(123,47,247,.13));font-size:24px;margin-bottom:16px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{font-size:14px;color:var(--ink2)}
.card .tagline{margin-top:14px;font-size:12.5px;color:var(--brand);font-weight:700}

/* platform intro */
.intro{background:#fff}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
@media(max-width:860px){.intro-grid{grid-template-columns:1fr;gap:30px}}
.intro-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.intro-item{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:12px;background:var(--bg);transition:.25s}
.intro-item:hover{background:rgba(255,46,99,.07)}
.intro-item .dot{width:30px;height:30px;flex-shrink:0;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}
.intro-item b{font-size:14.5px;display:block}
.intro-item span{font-size:12.5px;color:var(--ink2)}
@media(max-width:520px){.intro-list{grid-template-columns:1fr}}

/* stats band */
.band{background:linear-gradient(120deg,var(--brand),var(--brand3));color:#fff}
.band .grid{gap:0}
.band-stat{text-align:center;padding:22px 10px;border-right:1px solid rgba(255,255,255,.18)}
.band-stat:last-child{border-right:none}
.band-stat b{font-size:38px;font-weight:800;display:block}
.band-stat span{font-size:14px;opacity:.85}
@media(max-width:760px){.band .grid{grid-template-columns:1fr 1fr}.band-stat:nth-child(2){border-right:none}.band-stat{border-bottom:1px solid rgba(255,255,255,.18)}}

/* steps */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
@media(max-width:900px){.timeline{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.timeline{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 20px;position:relative;transition:.25s}
.step:hover{transform:translateY(-5px);border-color:var(--brand);box-shadow:0 14px 34px rgba(255,46,99,.14)}
.step .no{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:16px}
.step h4{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--ink2)}

/* table */
.table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
th{background:#fafbff;font-weight:700;color:var(--ink);font-size:14px}
td:first-child{font-weight:600}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,46,99,.035)}
.badge-win{display:inline-block;background:rgba(62,240,160,.16);color:#0a9d63;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:700}

/* compare score */
.score-card{background:linear-gradient(135deg,#0d1024,#241138);color:#fff;border-radius:22px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:26px;flex-wrap:wrap}
.score-card .score-num{font-size:64px;font-weight:800;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.score-card .score-num small{font-size:20px;color:rgba(255,255,255,.6);-webkit-text-fill-color:rgba(255,255,255,.6)}
.score-card .stars{font-size:26px;color:#ffb400;letter-spacing:3px}
.score-card h3{font-size:22px;margin-bottom:8px}
.score-card p{color:rgba(255,255,255,.7);font-size:14px}

/* faq */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:.25s}
.faq-item:hover{border-color:rgba(255,46,99,.4)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 22px;cursor:pointer;font-weight:700;font-size:15.5px}
.faq-q .plus{font-size:22px;color:var(--brand);transition:.3s;flex-shrink:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 22px;color:var(--ink2);font-size:14.5px}
.faq-item.open .faq-a{max-height:320px;padding-bottom:20px}
.faq-item.open .plus{transform:rotate(45deg)}

/* reviews */
.review{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;transition:.25s;display:flex;flex-direction:column;gap:14px}
.review:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(13,16,36,.09)}
.review .stars{color:#ffb400;font-size:15px;letter-spacing:2px}
.review p{font-size:14px;color:var(--ink2);flex:1}
.review .who{display:flex;align-items:center;gap:12px}
.review .avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand3));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px}
.review .who b{font-size:14px;display:block}
.review .who span{font-size:12px;color:var(--ink2)}

/* case gallery */
.case-card{border-radius:18px;overflow:hidden;background:#fff;border:1px solid var(--line);transition:.28s}
.case-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(13,16,36,.12)}
.case-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#eee}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case-card:hover .thumb img{transform:scale(1.05)}
.case-card .body{padding:18px 20px}
.case-card .body h4{font-size:16px;margin-bottom:6px}
.case-card .body p{font-size:13px;color:var(--ink2)}
.square-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:stretch}
.square-grid .case-card{display:flex;flex-direction:column}
.square-grid .thumb{aspect-ratio:1/1}
.square-grid .thumb img{object-fit:cover}
@media(max-width:620px){.square-grid{grid-template-columns:1fr}}

/* article list */
.art-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.art-list{grid-template-columns:1fr}}
.art{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s}
.art:hover{border-color:var(--brand);transform:translateY(-4px);box-shadow:0 12px 30px rgba(255,46,99,.12)}
.art span{font-size:12px;color:var(--brand);font-weight:700}
.art h4{font-size:15px;margin:8px 0}
.art p{font-size:13px;color:var(--ink2)}
.art a.more{font-size:13px;font-weight:700;color:var(--brand);margin-top:10px;display:inline-block}

/* tag cloud */
.tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tags a{font-size:13.5px;padding:8px 16px;border-radius:30px;background:#fff;border:1px solid var(--line);color:var(--ink2);transition:.2s;font-weight:600}
.tags a:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* token price */
.price-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;transition:.25s;position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(13,16,36,.1);border-color:var(--brand)}
.price-card .plan{font-size:14px;font-weight:700;color:var(--brand);margin-bottom:10px}
.price-card .price{font-size:38px;font-weight:800;margin-bottom:6px}
.price-card .price small{font-size:14px;color:var(--ink2);font-weight:600}
.price-card ul{list-style:none;margin:16px 0;padding:0;font-size:13.5px;color:var(--ink2)}
.price-card ul li{padding:5px 0;display:flex;gap:8px}
.price-card ul li::before{content:"✓";color:var(--brand);font-weight:800}

/* form */
.form-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:0 12px 40px rgba(13,16,36,.05)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;background:#fbfcff;transition:.2s;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(255,46,99,.1)}
.field textarea{resize:vertical;min-height:110px}
.full{grid-column:1/-1}
.form-note{font-size:12.5px;color:var(--ink2);margin-top:14px}
@media(max-width:640px){.full{grid-column:auto}}

/* contact info */
.contact-info{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:640px){.contact-info{grid-template-columns:1fr}}
.info-line{display:flex;gap:12px;margin-bottom:16px;font-size:14px;color:var(--ink2)}
.info-line b{color:var(--ink)}
.qr-box{text-align:center}
.qr-box img{width:160px;height:160px;object-fit:cover;border-radius:12px;border:1px solid var(--line);margin:0 auto 8px}
.qr-box span{font-size:13px;color:var(--ink2)}

/* footer */
footer{background:#0d1024;color:rgba(255,255,255,.7);padding:60px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-grid a,.foot-grid p{display:block;font-size:13.5px;margin-bottom:10px;color:rgba(255,255,255,.62);transition:.2s}
.foot-grid a:hover{color:var(--brand2)}
.foot-brand img{height:36px;margin-bottom:16px;filter:brightness(0) invert(1)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.45)}

/* floaters */
.float-kf{position:fixed;right:20px;bottom:20px;z-index:120;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.float-kf .kf-btn{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;cursor:pointer;box-shadow:0 10px 26px rgba(255,46,99,.4);transition:.25s;border:none}
.float-kf .kf-btn:hover{transform:scale(1.08)}
.kf-panel{background:#fff;border-radius:16px;padding:14px;box-shadow:0 18px 44px rgba(13,16,36,.22);width:210px;display:none;text-align:center}
.kf-panel.show{display:block}
.kf-panel img{width:100%;border-radius:10px;margin-bottom:8px}
.kf-panel span{font-size:12.5px;color:var(--ink2)}
#totop{position:fixed;right:20px;bottom:88px;width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--ink);display:none;align-items:center;justify-content:center;font-size:20px;cursor:pointer;z-index:120;box-shadow:0 8px 20px rgba(0,0,0,.1)}
#totop.show{display:flex}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* misc */
.bg-white{background:#fff}
.bg-soft{background:#f6f7fb}
.notice{background:rgba(255,46,99,.08);border-left:4px solid var(--brand);padding:14px 18px;border-radius:10px;font-size:14px;color:var(--ink2);margin-bottom:30px}
.ai-page-image{border-radius:14px;margin-bottom:16px}
.banner-row{display:flex;gap:18px;flex-wrap:wrap}
.banner-row .ai-page-image{flex:1;min-width:240px}