*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#14203a;
  --ink-soft:#42506e;
  --line:#e2e8f5;
  --brand:#5b4bff;
  --brand-2:#ff5d8f;
  --brand-3:#22c7b8;
  --bg:#f5f7ff;
  --card:#ffffff;
  --radius:18px;
  --shadow:0 12px 34px rgba(70,88,168,.10);
  --shadow-hover:0 20px 46px rgba(70,88,168,.18);
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 88% -6%, #e4ecff 0%, rgba(228,236,255,0) 62%),
    radial-gradient(760px 460px at 6% 4%, #fff0f6 0%, rgba(255,240,246,0) 60%),
    linear-gradient(180deg,#f7f9ff 0%,#f4f7ff 40%,#f6f4ff 100%);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}

/* ============ NAV ============ */
.site-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(226,232,245,.9)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{width:auto;max-height:40px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;letter-spacing:.5px;color:var(--ink)}
.brand-text span{font-size:11px;color:#7a86a8;letter-spacing:1.6px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{position:relative;padding:8px 13px;font-size:14.5px;color:var(--ink-soft);border-radius:10px;transition:.25s;white-space:nowrap}
.nav-links a:hover{color:var(--brand);background:#eef1ff}
.nav-links a::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transition:transform .25s}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-family:inherit;font-weight:600;border-radius:999px;transition:transform .2s,box-shadow .25s,background .25s;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#5b4bff,#8b5cff 55%,#ff5d8f);color:#fff;padding:11px 22px;font-size:14.5px;box-shadow:0 10px 24px rgba(91,75,255,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(91,75,255,.38)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid #cfd7ff;padding:9px 20px;font-size:14.5px}
.btn-ghost:hover{background:#f2f4ff;transform:translateY(-2px)}
.btn-lg{padding:15px 34px;font-size:16px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{position:relative;padding:74px 0 78px;overflow:hidden}
.hero::before{content:"";position:absolute;width:560px;height:560px;border-radius:50%;top:-220px;right:-160px;background:radial-gradient(circle at 40% 40%,rgba(255,93,143,.22),rgba(255,93,143,0) 68%);animation:floatA 14s ease-in-out infinite}
.hero::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;bottom:-240px;left:-180px;background:radial-gradient(circle at 55% 45%,rgba(34,199,184,.20),rgba(34,199,184,0) 68%);animation:floatB 17s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(-26px,30px)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-24px)}}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(91,75,255,.09);border:1px solid rgba(91,75,255,.20);color:var(--brand);font-size:13px;padding:7px 16px;border-radius:999px;font-weight:600;letter-spacing:.5px}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:linear-gradient(120deg,var(--brand),var(--brand-2));display:block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.45}}
.hero h1{margin-top:22px;font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-.5px;font-weight:800}
.hero h1 em{font-style:normal;background:linear-gradient(115deg,#5b4bff,#9b5cff 45%,#ff5d8f);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{margin-top:20px;font-size:16.5px;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-mini{display:flex;flex-wrap:wrap;gap:22px;margin-top:36px;padding-top:26px;border-top:1px dashed #d6ddf3}
.hero-mini div{min-width:104px}
.hero-mini b{display:block;font-size:22px;font-weight:800;background:linear-gradient(115deg,#5b4bff,#ff5d8f);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-mini span{font-size:13px;color:#7a86a8}
.hero-panel{position:relative;background:linear-gradient(160deg,#ffffff 0%,#f3f5ff 100%);border:1px solid #e2e8fb;border-radius:26px;padding:26px;box-shadow:var(--shadow);animation:rise .9s cubic-bezier(.2,.7,.3,1) both}
.hero-panel h2{font-size:16px;font-weight:700;letter-spacing:.4px;color:var(--ink)}
.hero-panel .panel-sub{font-size:12.5px;color:#8590ae;margin-top:6px}
.model-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.model-chips span{font-size:12.5px;padding:6px 13px;border-radius:999px;background:#fff;border:1px solid #e3e9fb;color:var(--ink-soft);box-shadow:0 3px 10px rgba(90,108,190,.06);transition:.25s}
.model-chips span:hover{transform:translateY(-2px);color:var(--brand);border-color:#c9d3ff;box-shadow:0 8px 18px rgba(91,75,255,.14)}
.panel-bar{margin-top:22px;height:8px;border-radius:6px;background:#e8ecfb;overflow:hidden}
.panel-bar i{display:block;height:100%;width:78%;border-radius:6px;background:linear-gradient(90deg,#5b4bff,#8b5cff,#ff5d8f);animation:grow 1.6s .4s ease both}
@keyframes grow{from{width:0}to{width:78%}}
.panel-foot{display:flex;justify-content:space-between;font-size:12.5px;color:#8590ae;margin-top:10px}
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}

/* ============ SECTION BASE ============ */
.section{padding:76px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2.4px;color:var(--brand);text-transform:uppercase;padding-left:2px}
.section-head h2{margin-top:12px;font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:800;letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:15.5px}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ============ STATS ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:linear-gradient(160deg,#fff,#f6f8ff);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);transition:.3s}
.stat:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#cfd8ff}
.stat b{display:block;font-size:28px;font-weight:800;background:linear-gradient(115deg,#5b4bff,#ff5d8f);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13.5px;color:var(--ink-soft);display:block;margin-top:6px}

/* ============ PLATFORM INTRO ============ */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.intro-copy h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:800}
.intro-copy p{margin-top:18px;color:var(--ink-soft);font-size:15.5px}
.intro-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.intro-points li{list-style:none;display:flex;gap:10px;font-size:14.5px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:0 6px 16px rgba(80,98,180,.06);transition:.28s}
.intro-points li:hover{transform:translateY(-3px);border-color:#cdd7ff}
.intro-points li b{color:var(--brand);flex-shrink:0}
.intro-visual{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.intro-visual figure{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:.35s}
.intro-visual figure:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.intro-visual figure img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f1f4ff}
.intro-visual figure:last-child{grid-column:1/-1}
.intro-visual figure:last-child img{aspect-ratio:16/9}

/* ============ SERVICE CARDS ============ */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);transition:.32s;overflow:hidden}
.svc::before{content:"";position:absolute;inset:0 auto auto 0;width:100%;height:4px;background:linear-gradient(90deg,#5b4bff,#ff5d8f,#22c7b8);transform:scaleX(0);transform-origin:left;transition:transform .4s}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#cfd8ff}
.svc:hover::before{transform:scaleX(1)}
.svc-icon{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;background:linear-gradient(135deg,#5b4bff,#9b5cff);margin-bottom:16px}
.svc:nth-child(3n+2) .svc-icon{background:linear-gradient(135deg,#ff7a9c,#ff5d8f)}
.svc:nth-child(3n) .svc-icon{background:linear-gradient(135deg,#29cdbe,#1fb6a7)}
.svc h3{font-size:17px;font-weight:700}
.svc p{margin-top:9px;font-size:14px;color:var(--ink-soft)}

/* ============ SCENES ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scene{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 16px 18px;transition:.28s;box-shadow:0 6px 16px rgba(80,98,180,.05)}
.scene:hover{transform:translateY(-4px);border-color:#cdd7ff;box-shadow:var(--shadow-hover)}
.scene h4{font-size:14.5px;font-weight:700;display:flex;align-items:center;gap:8px}
.scene h4 i{width:6px;height:6px;border-radius:50%;background:linear-gradient(120deg,#5b4bff,#ff5d8f);display:block;flex-shrink:0}
.scene p{margin-top:8px;font-size:13px;color:var(--ink-soft);line-height:1.65}

/* ============ PROCESS ============ */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{position:relative;background:linear-gradient(165deg,#fff,#f7f8ff);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow);transition:.3s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:16px;right:20px;font-size:34px;font-weight:800;color:#eaefff;letter-spacing:-1px}
.step h3{font-size:16px;font-weight:700;position:relative;z-index:1}
.step p{margin-top:10px;font-size:13.5px;color:var(--ink-soft);position:relative;z-index:1}

/* ============ COMPARE ============ */
.compare-card{background:linear-gradient(160deg,#fff,#f5f7ff);border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:var(--shadow)}
.score-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:28px}
.score{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center;box-shadow:0 6px 18px rgba(80,98,180,.06)}
.score b{display:block;font-size:30px;font-weight:800;background:linear-gradient(115deg,#5b4bff,#ff5d8f);-webkit-background-clip:text;background-clip:text;color:transparent}
.score span{font-size:13px;color:var(--ink-soft)}
.stars{color:#ffb02e;letter-spacing:2px;font-size:17px;margin-bottom:6px}
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
table.cmp{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
table.cmp th,table.cmp td{padding:15px 18px;text-align:left;border-bottom:1px solid #eef1fa}
table.cmp thead th{background:#f3f5ff;font-weight:700;color:var(--ink);font-size:14px;white-space:nowrap}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp tbody tr:hover{background:#fafbff}
table.cmp td.yes{color:#0f9d8a;font-weight:600}
table.cmp td.part{color:#8a93ad}

/* ============ CASE ============ */
.case-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:22px}
.case-big{position:relative;border-radius:22px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:.35s}
.case-big:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-big img{width:100%;aspect-ratio:16/9;object-fit:contain;background:#f1f4ff}
.case-body{padding:22px 24px 26px}
.case-body h3{font-size:18px;font-weight:700}
.case-body p{margin-top:8px;font-size:14px;color:var(--ink-soft)}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.case-tags span{font-size:12px;padding:4px 11px;border-radius:999px;background:#eef1ff;color:var(--brand);font-weight:600}
.case-side{display:grid;gap:16px}
.case-mini{display:grid;grid-template-columns:112px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:0 6px 18px rgba(80,98,180,.06);transition:.3s;align-items:center}
.case-mini:hover{transform:translateX(4px);border-color:#cdd7ff}
.case-mini img{width:100%;aspect-ratio:1/1;object-fit:contain;border-radius:12px;background:#f1f4ff}
.case-mini h4{font-size:15px;font-weight:700}
.case-mini p{font-size:13px;color:var(--ink-soft);margin-top:6px}

/* ============ TOKEN ============ */
.token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.token{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:.3s;position:relative}
.token:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#cfd8ff}
.token.hot{border-color:#c9d3ff;background:linear-gradient(170deg,#fff,#f6f7ff)}
.token .flag{position:absolute;top:16px;right:16px;font-size:11px;font-weight:700;padding:4px 11px;border-radius:999px;background:linear-gradient(120deg,#5b4bff,#ff5d8f);color:#fff}
.token h3{font-size:16px;font-weight:700}
.token .price{margin-top:14px;font-size:28px;font-weight:800;color:var(--brand)}
.token .price small{font-size:13px;color:#8590ae;font-weight:500;margin-left:4px}
.token ul{list-style:none;margin-top:18px;display:grid;gap:9px}
.token ul li{font-size:13.5px;color:var(--ink-soft);display:flex;gap:8px}
.token ul li::before{content:"✓";color:var(--brand-3);font-weight:800;flex-shrink:0}
.token .btn{margin-top:22px;width:100%}

/* ============ REVIEWS ============ */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);transition:.3s;display:flex;flex-direction:column}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#cfd8ff}
.review .stars{font-size:14px;margin-bottom:12px}
.review p{font-size:14px;color:var(--ink-soft);flex:1}
.review-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px dashed #e6ebf8}
.avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;background:linear-gradient(135deg,#5b4bff,#9b5cff);flex-shrink:0}
.review:nth-child(3n+2) .avatar{background:linear-gradient(135deg,#ff7a9c,#ff5d8f)}
.review:nth-child(3n) .avatar{background:linear-gradient(135deg,#29cdbe,#1fb6a7)}
.review-user b{display:block;font-size:14px;color:var(--ink)}
.review-user span{font-size:12px;color:#8590ae}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 4px 14px rgba(80,98,180,.05);transition:.28s}
.faq:hover{border-color:#cdd7ff}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:19px 22px;background:none;border:none;cursor:pointer;font-family:inherit;font-size:15.5px;font-weight:600;color:var(--ink);text-align:left;transition:.25s}
.faq-q:hover{color:var(--brand)}
.faq-q .ico{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:#eef1ff;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:.3s}
.faq.open .faq-q .ico{transform:rotate(45deg);background:linear-gradient(120deg,#5b4bff,#ff5d8f);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-soft)}

/* ============ ARTICLE ============ */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;transition:.3s;box-shadow:0 6px 18px rgba(80,98,180,.05);display:flex;flex-direction:column}
.article:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cdd7ff}
.article span{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:1px}
.article h3{font-size:15.5px;margin-top:10px;line-height:1.5;font-weight:700}
.article p{font-size:13px;color:var(--ink-soft);margin-top:10px;flex:1}
.article a.more{margin-top:16px;font-size:13.5px;font-weight:600;color:var(--brand)}
.article a.more:hover{text-decoration:underline}

/* ============ FORM ============ */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;background:linear-gradient(160deg,#ffffff,#f4f6ff);border:1px solid var(--line);border-radius:26px;padding:38px;box-shadow:var(--shadow)}
.form-info h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.35}
.form-info p{margin-top:16px;font-size:14.5px;color:var(--ink-soft)}
.contact-list{display:grid;gap:12px;margin-top:24px;list-style:none}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-soft);background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 16px}
.contact-list li b{color:var(--ink);flex-shrink:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);background:#fff;border:1.5px solid #dde3f5;border-radius:12px;padding:13px 15px;transition:.25s;outline:none}
.field textarea{resize:vertical;min-height:112px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,75,255,.12)}
.form-grid .btn{grid-column:1/-1;margin-top:4px;padding:14px}
.form-note{grid-column:1/-1;font-size:12.5px;color:#8a93ad;text-align:center}
.qr-box{display:flex;align-items:center;gap:14px;margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.qr-box img{width:88px;height:88px;object-fit:cover;border-radius:10px;flex-shrink:0}
.qr-box b{display:block;font-size:14px;color:var(--ink)}
.qr-box span{font-size:12.5px;color:#8590ae;display:block;margin-top:4px;line-height:1.5}

/* ============ NETWORK ============ */
.network{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;text-align:center;transition:.3s}
.net-item:hover{transform:translateY(-4px);border-color:#cdd7ff;box-shadow:0 12px 24px rgba(80,98,180,.10)}
.net-item b{display:block;font-size:15px;color:var(--ink)}
.net-item span{display:block;font-size:12.5px;color:#8590ae;margin-top:6px}

/* ============ TAGS ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{font-size:13px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-soft);transition:.25s}
.tag-cloud a:hover{color:var(--brand);border-color:#c9d3ff;background:#f4f6ff;transform:translateY(-2px)}

/* ============ LINKS ============ */
.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.link-grid a{display:block;text-align:center;font-size:13.5px;padding:13px 10px;border-radius:12px;background:#fff;border:1px solid var(--line);color:var(--ink-soft);transition:.25s}
.link-grid a:hover{color:var(--brand);border-color:#c9d3ff;box-shadow:0 8px 18px rgba(91,75,255,.10);transform:translateY(-2px)}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;border-radius:26px;padding:52px 40px;text-align:center;background:linear-gradient(120deg,#5b4bff,#8b5cff 48%,#ff5d8f);box-shadow:0 22px 50px rgba(91,75,255,.30)}
.cta-band::after{content:"";position:absolute;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.10);top:-180px;right:-90px}
.cta-band h2{position:relative;z-index:1;color:#fff;font-size:clamp(23px,3vw,32px);font-weight:800}
.cta-band p{position:relative;z-index:1;color:rgba(255,255,255,.90);margin-top:14px;font-size:15px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-band .btn{margin-top:26px;position:relative;z-index:1;background:#fff;color:var(--brand);padding:14px 34px;font-size:15.5px;box-shadow:0 12px 26px rgba(20,32,58,.20)}
.cta-band .btn:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(20,32,58,.26)}

/* ============ FOOTER ============ */
.site-footer{background:#141c33;color:#c8d2ec;padding:56px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .ai-page-logo{max-height:38px;width:auto;filter:brightness(0) invert(1);opacity:.95}
.footer-brand b{color:#fff;font-size:17px;letter-spacing:.5px}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.5px}
.footer-col p{font-size:13.5px;color:#9aa8ca;margin-bottom:10px;line-height:1.7}
.footer-col ul{list-style:none;display:grid;gap:9px}
.footer-col ul li a{font-size:13.5px;color:#9aa8ca;transition:.22s}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-contact a{color:#9aa8ca;transition:.22s}
.footer-contact a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#8290b3}
.footer-bottom a{color:#9aa8ca}
.footer-bottom a:hover{color:#fff}

/* ============ FLOAT ============ */
.float-kf{position:fixed;right:18px;bottom:26px;z-index:200;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-kf .kf-btn{width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,#5b4bff,#ff5d8f);color:#fff;font-size:20px;box-shadow:0 12px 26px rgba(91,75,255,.38);display:flex;align-items:center;justify-content:center;transition:.28s}
.float-kf .kf-btn:hover{transform:translateY(-3px) scale(1.04)}
.kf-pop{width:230px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 18px 40px rgba(30,42,80,.18);display:none}
.kf-pop.show{display:block;animation:rise .3s ease both}
.kf-pop img{width:100%;border-radius:10px;margin-bottom:10px;aspect-ratio:1/1;object-fit:cover}
.kf-pop p{font-size:12.5px;color:var(--ink-soft);line-height:1.6}
.kf-pop b{display:block;color:var(--ink);font-size:13px;margin-bottom:6px}
.to-top{position:fixed;right:18px;bottom:92px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(80,98,180,.16);transition:.25s;z-index:200}
.to-top.show{display:flex}
.to-top:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(80,98,180,.24)}

/* ============ RESPONSIVE ============ */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-panel{max-width:560px}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .case-grid{grid-template-columns:1fr}
  .token-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .form-wrap{grid-template-columns:1fr;padding:28px}
  .network{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .link-grid{grid-template-columns:repeat(3,1fr)}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;gap:2px;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(30,42,80,.10)}
  .nav-links.show{display:flex}
  .nav-links a{padding:11px 12px;border-radius:10px}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .nav-cta .btn-primary{display:none}
}
@media(max-width:720px){
  .section{padding:56px 0}
  .hero{padding:48px 0 56px}
  .svc-grid,.scene-grid,.review-grid,.article-grid,.token-grid{grid-template-columns:1fr}
  .process{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .intro-points{grid-template-columns:1fr}
  .score-row{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .network{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .link-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:40px 22px}
  .compare-card{padding:22px}
  .form-wrap{padding:22px}
  .hero-actions .btn{width:100%}
  .float-kf .kf-btn{width:48px;height:48px}
}