:root{
  --c-blue:#1a4bff;
  --c-blue-deep:#0a2bb5;
  --c-orange:#ff6a00;
  --c-yellow:#ffcf1f;
  --c-pink:#ff2d78;
  --c-cyan:#00d4ff;
  --c-ink:#0e1428;
  --c-ink-2:#1c2540;
  --c-gray:#5b6480;
  --c-line:#e3e7f2;
  --c-bg:#f5f7fd;
  --c-white:#ffffff;
  --radius:18px;
  --shadow-sm:0 4px 16px rgba(20,30,70,.07);
  --shadow-md:0 12px 34px rgba(20,30,70,.12);
  --shadow-lg:0 24px 60px rgba(20,30,70,.18);
  --maxw:1200px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--c-ink);background:var(--c-white);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);box-shadow:0 2px 18px rgba(20,30,70,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand .ai-page-logo{height:42px;width:auto;object-fit:contain}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.5px;background:linear-gradient(120deg,var(--c-blue),var(--c-pink));-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:8px 13px;font-size:14.5px;font-weight:600;color:var(--c-ink-2);border-radius:9px;transition:.22s;white-space:nowrap}
.nav-links a:hover{color:var(--c-blue);background:#eef2ff;transform:translateY(-1px)}
.nav-links a.ai-page-home-link{color:var(--c-orange)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;margin-left:14px;padding:10px 20px;background:linear-gradient(120deg,var(--c-orange),var(--c-pink));color:#fff!important;border-radius:11px;font-weight:700;font-size:14px;box-shadow:0 8px 20px rgba(255,80,60,.28);transition:.24s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,80,60,.4);background:linear-gradient(120deg,var(--c-pink),var(--c-orange))}
.menu-toggle{display:none;width:46px;height:46px;border:1px solid var(--c-line);background:#fff;border-radius:11px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0}
.menu-toggle span{display:block;width:22px;height:2.5px;background:var(--c-ink);border-radius:2px;transition:.3s}
.menu-toggle.active span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0b1440 0%,#12206b 40%,#2a1b8f 100%);color:#fff;padding:88px 0 96px}
.hero::before{content:"";position:absolute;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,0,.45),transparent 62%);top:-260px;right:-160px;filter:blur(6px)}
.hero::after{content:"";position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(0,212,255,.38),transparent 62%);bottom:-280px;left:-180px}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:50px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);font-size:13.5px;font-weight:600;letter-spacing:.4px;margin-bottom:26px}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--c-yellow);box-shadow:0 0 0 4px rgba(255,207,31,.25);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.25)}}
.hero h1{font-size:clamp(30px,4vw,50px);line-height:1.22;font-weight:900;letter-spacing:-.5px;margin-bottom:22px}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--c-yellow),var(--c-orange),var(--c-pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 32px;border-radius:13px;font-size:16px;font-weight:700;cursor:pointer;border:none;transition:.26s;text-align:center}
.btn-primary{background:linear-gradient(120deg,var(--c-orange),var(--c-pink));color:#fff;box-shadow:0 12px 30px rgba(255,70,60,.42)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,70,60,.55)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-3px)}
.btn:active{transform:scale(.97)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{padding:7px 15px;border-radius:50px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:13px;font-weight:500;color:rgba(255,255,255,.9)}
.hero-panel{position:relative;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:26px;padding:30px;backdrop-filter:blur(14px);box-shadow:var(--shadow-lg)}
.hero-panel-title{font-size:15px;font-weight:700;color:rgba(255,255,255,.95);margin-bottom:20px;display:flex;align-items:center;gap:9px}
.hero-panel-title::before{content:"";width:4px;height:16px;border-radius:3px;background:linear-gradient(var(--c-yellow),var(--c-orange))}
.stat-item{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.16)}
.stat-item:last-child{border-bottom:none}
.stat-label{font-size:14px;color:rgba(255,255,255,.72)}
.stat-val{font-size:22px;font-weight:900;color:var(--c-yellow);letter-spacing:.5px}
.stat-val small{font-size:12px;font-weight:600;color:rgba(255,255,255,.65);margin-left:3px}

/* ===== Section base ===== */
.section{padding:86px 0}
.section.alt{background:var(--c-bg)}
.sec-head{text-align:center;max-width:780px;margin:0 auto 54px}
.sec-tag{display:inline-block;padding:7px 18px;border-radius:50px;background:#eef2ff;color:var(--c-blue);font-size:13.5px;font-weight:700;letter-spacing:.6px;margin-bottom:16px}
.sec-tag.orange{background:#fff1e8;color:var(--c-orange)}
.sec-tag.pink{background:#ffe9f1;color:var(--c-pink)}
.sec-title{font-size:clamp(24px,3.2vw,38px);font-weight:900;letter-spacing:-.4px;line-height:1.3;margin-bottom:16px;color:var(--c-ink)}
.sec-title em{font-style:normal;color:var(--c-blue)}
.sec-desc{font-size:16px;color:var(--c-gray);max-width:700px;margin:0 auto}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-text p{color:var(--c-gray);font-size:16px;margin-bottom:18px}
.about-text strong{color:var(--c-ink);font-weight:700}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.about-point{display:flex;gap:12px;align-items:flex-start;padding:16px;background:#fff;border-radius:14px;box-shadow:var(--shadow-sm);border:1px solid var(--c-line);transition:.26s}
.about-point:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.about-point i{flex-shrink:0;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--c-blue),var(--c-cyan));color:#fff;font-weight:900;font-size:14px;font-style:normal}
.about-point b{display:block;font-size:14.5px;font-weight:800;margin-bottom:2px}
.about-point span{font-size:12.5px;color:var(--c-gray);line-height:1.5}
.about-media{position:relative}
.about-media .media-main{border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg)}
.about-media .media-main img{width:100%;object-fit:cover;transition:.5s}
.about-media:hover .media-main img{transform:scale(1.03)}
.media-badge{position:absolute;right:-14px;bottom:-14px;background:linear-gradient(120deg,var(--c-orange),var(--c-pink));color:#fff;padding:16px 22px;border-radius:16px;box-shadow:var(--shadow-md);text-align:center}
.media-badge b{display:block;font-size:26px;font-weight:900;line-height:1.1}
.media-badge span{font-size:12px;opacity:.92}

/* ===== Metric cards ===== */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric-card{padding:30px 24px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.28s;position:relative;overflow:hidden}
.metric-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--c-blue),var(--c-cyan))}
.metric-card:nth-child(2)::before{background:linear-gradient(90deg,var(--c-orange),var(--c-yellow))}
.metric-card:nth-child(3)::before{background:linear-gradient(90deg,var(--c-pink),var(--c-orange))}
.metric-card:nth-child(4)::before{background:linear-gradient(90deg,#7c4dff,var(--c-cyan))}
.metric-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-md)}
.metric-num{font-size:40px;font-weight:900;line-height:1.1;letter-spacing:-1px;background:linear-gradient(120deg,var(--c-blue),var(--c-pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric-num small{font-size:18px;font-weight:800}
.metric-label{font-size:15px;font-weight:700;margin:10px 0 4px}
.metric-sub{font-size:13px;color:var(--c-gray)}

/* ===== Service cards ===== */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card{padding:30px 26px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.3s;position:relative;overflow:hidden}
.service-card::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(26,75,255,.04),transparent 55%);opacity:0;transition:.3s}
.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:#cdd8ff}
.service-card:hover::after{opacity:1}
.sc-icon{width:54px;height:54px;border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px;background:linear-gradient(135deg,#eef2ff,#dbe6ff);color:var(--c-blue);font-weight:900}
.service-card:nth-child(3n+2) .sc-icon{background:linear-gradient(135deg,#fff1e8,#ffe0cc);color:var(--c-orange)}
.service-card:nth-child(3n) .sc-icon{background:linear-gradient(135deg,#ffe9f1,#ffd5e5);color:var(--c-pink)}
.sc-title{font-size:18px;font-weight:800;margin-bottom:9px;position:relative;z-index:1}
.sc-desc{font-size:14px;color:var(--c-gray);line-height:1.65;position:relative;z-index:1}
.sc-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--c-blue);position:relative;z-index:1;transition:.22s}
.sc-link:hover{gap:11px;color:var(--c-orange)}

/* ===== Process timeline ===== */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.step{position:relative;padding:28px 20px;background:#fff;border-radius:var(--radius);border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.28s;text-align:center}
.step:hover{transform:translateY(-7px);box-shadow:var(--shadow-md)}
.step-num{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;font-weight:900;font-size:18px;color:#fff;background:linear-gradient(135deg,var(--c-blue),var(--c-cyan));box-shadow:0 8px 18px rgba(26,75,255,.28)}
.step:nth-child(2) .step-num{background:linear-gradient(135deg,var(--c-orange),var(--c-yellow));box-shadow:0 8px 18px rgba(255,106,0,.28)}
.step:nth-child(3) .step-num{background:linear-gradient(135deg,var(--c-pink),var(--c-orange));box-shadow:0 8px 18px rgba(255,45,120,.28)}
.step:nth-child(4) .step-num{background:linear-gradient(135deg,#7c4dff,var(--c-pink));box-shadow:0 8px 18px rgba(124,77,255,.28)}
.step:nth-child(5) .step-num{background:linear-gradient(135deg,#00c48c,var(--c-cyan));box-shadow:0 8px 18px rgba(0,196,140,.28)}
.step-title{font-size:15.5px;font-weight:800;margin-bottom:8px}
.step-desc{font-size:13px;color:var(--c-gray);line-height:1.6}

/* ===== Industry cards ===== */
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.industry-card{padding:26px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-line);transition:.28s;box-shadow:var(--shadow-sm)}
.industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#ffd8c2}
.ind-emoji{font-size:26px;margin-bottom:12px;display:block}
.ind-title{font-size:16px;font-weight:800;margin-bottom:7px}
.ind-desc{font-size:13.5px;color:var(--c-gray);line-height:1.6}

/* ===== Case showcase ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.3s}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.case-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:#eef2ff}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:.55s}
.case-card:hover .case-thumb img{transform:scale(1.07)}
.case-tagpill{position:absolute;top:14px;left:14px;padding:5px 13px;border-radius:50px;background:rgba(10,20,60,.72);color:#fff;font-size:12px;font-weight:700;backdrop-filter:blur(6px)}
.case-body{padding:22px 22px 24px}
.case-title{font-size:17px;font-weight:800;margin-bottom:8px}
.case-desc{font-size:13.5px;color:var(--c-gray);line-height:1.6}
.case-meta{display:flex;gap:14px;margin-top:15px;font-size:12.5px;color:var(--c-blue);font-weight:700}

/* ===== Compare table ===== */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow-md);background:#fff;border:1px solid var(--c-line)}
table.compare{width:100%;border-collapse:collapse;min-width:760px}
table.compare th,table.compare td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--c-line)}
table.compare thead th{background:linear-gradient(120deg,#0b1440,#1c2a6b);color:#fff;font-weight:700;font-size:14.5px;position:sticky;top:0}
table.compare thead th.hl{background:linear-gradient(120deg,var(--c-orange),var(--c-pink))}
table.compare tbody tr:hover{background:#f7f9ff}
table.compare td:first-child{font-weight:700;color:var(--c-ink)}
table.compare td.hl{background:#fff7f2;font-weight:700;color:var(--c-orange)}
table.compare .yes{color:#00a86b;font-weight:800}
table.compare .no{color:#c0263c;font-weight:700}
.rating-box{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:32px}
.rating-card{padding:28px;border-radius:var(--radius);text-align:center;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm)}
.rating-card.main{background:linear-gradient(135deg,#0b1440,#2a1b8f);color:#fff;border:none}
.rating-stars{font-size:24px;letter-spacing:4px;color:var(--c-yellow);margin-bottom:10px}
.rating-score{font-size:44px;font-weight:900;line-height:1.05;letter-spacing:-1px}
.rating-card:not(.main) .rating-score{background:linear-gradient(120deg,var(--c-blue),var(--c-pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.rating-label{font-size:14px;margin-top:8px;opacity:.85;font-weight:600}

/* ===== Review cards ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{padding:28px 26px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.3s;display:flex;flex-direction:column}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.review-stars{color:var(--c-yellow);font-size:16px;letter-spacing:2px;margin-bottom:14px}
.review-text{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;flex:1;margin-bottom:20px}
.review-user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--c-line);padding-top:16px}
.review-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;color:#fff;font-size:16px;background:linear-gradient(135deg,var(--c-blue),var(--c-cyan));flex-shrink:0}
.review-card:nth-child(2n) .review-avatar{background:linear-gradient(135deg,var(--c-orange),var(--c-pink))}
.review-card:nth-child(3n) .review-avatar{background:linear-gradient(135deg,#7c4dff,var(--c-blue))}
.review-name{font-size:14.5px;font-weight:800}
.review-role{font-size:12.5px;color:var(--c-gray)}

/* ===== Token compare / price ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{padding:34px 28px;border-radius:22px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.3s;display:flex;flex-direction:column}
.price-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.price-card.featured{background:linear-gradient(160deg,#0b1440,#2a1b8f);color:#fff;border:none;position:relative;overflow:hidden}
.price-card.featured::before{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,0,.5),transparent 65%);top:-110px;right:-90px}
.price-plan{font-size:15px;font-weight:800;letter-spacing:.5px;margin-bottom:6px;position:relative;z-index:1}
.price-tag{font-size:34px;font-weight:900;letter-spacing:-1px;margin:10px 0;position:relative;z-index:1}
.price-tag small{font-size:14px;font-weight:600;opacity:.75}
.price-desc{font-size:13.5px;color:var(--c-gray);margin-bottom:22px;position:relative;z-index:1}
.price-card.featured .price-desc{color:rgba(255,255,255,.78)}
.price-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1;position:relative;z-index:1}
.price-list li{display:flex;gap:9px;align-items:flex-start;font-size:13.8px;color:var(--c-ink-2)}
.price-card.featured .price-list li{color:rgba(255,255,255,.92)}
.price-list i{color:#00a86b;font-weight:900;font-style:normal;flex-shrink:0}
.price-card.featured .price-list i{color:var(--c-yellow)}
.price-card .btn{width:100%;position:relative;z-index:1}
.tag-cloud{display:flex;flex-wrap:wrap;gap:11px;justify-content:center;margin-top:44px}
.tag-cloud span{padding:9px 20px;border-radius:50px;background:#fff;border:1px solid var(--c-line);font-size:13.5px;font-weight:600;color:var(--c-ink-2);transition:.24s;cursor:default;box-shadow:var(--shadow-sm)}
.tag-cloud span:hover{transform:translateY(-3px);color:#fff;background:linear-gradient(120deg,var(--c-blue),var(--c-pink));border-color:transparent;box-shadow:0 10px 22px rgba(26,75,255,.28)}

/* ===== Service network ===== */
.network{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.net-item{padding:22px 16px;text-align:center;border-radius:14px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.26s}
.net-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#cdd8ff}
.net-name{font-size:15px;font-weight:800;margin-bottom:4px}
.net-sub{font-size:12px;color:var(--c-gray)}

/* ===== Articles ===== */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.article-item{display:flex;gap:18px;padding:22px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);transition:.28s}
.article-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.article-date{flex-shrink:0;width:64px;height:64px;border-radius:14px;background:linear-gradient(135deg,#eef2ff,#dbe6ff);display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--c-blue);font-weight:900}
.article-date b{font-size:20px;line-height:1}
.article-date span{font-size:11px;font-weight:700;margin-top:3px}
.article-info h4{font-size:15.5px;font-weight:800;margin-bottom:5px}
.article-info p{font-size:13px;color:var(--c-gray);line-height:1.55}
.article-info a{color:var(--c-blue);font-weight:700;font-size:13px;display:inline-flex;gap:5px;margin-top:8px;transition:.2s}
.article-info a:hover{gap:10px;color:var(--c-orange)}

/* ===== Form ===== */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.form-info h3{font-size:26px;font-weight:900;margin-bottom:16px}
.form-info p{color:var(--c-gray);font-size:15px;margin-bottom:24px}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:14px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm)}
.contact-item i{flex-shrink:0;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--c-blue),var(--c-cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-style:normal;font-size:16px;font-weight:900}
.contact-item:nth-child(2) i{background:linear-gradient(135deg,var(--c-orange),var(--c-yellow))}
.contact-item:nth-child(3) i{background:linear-gradient(135deg,var(--c-pink),var(--c-orange))}
.contact-item:nth-child(4) i{background:linear-gradient(135deg,#00c48c,var(--c-cyan))}
.contact-item b{display:block;font-size:14px;font-weight:800;margin-bottom:2px}
.contact-item span{font-size:13px;color:var(--c-gray);word-break:break-all}
.form-card{padding:36px 32px;border-radius:22px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-md)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--c-ink-2)}
.form-field label .req{color:var(--c-pink)}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--c-line);border-radius:11px;font-family:inherit;font-size:14.5px;color:var(--c-ink);background:#fbfcff;transition:.22s;outline:none}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--c-blue);background:#fff;box-shadow:0 0 0 4px rgba(26,75,255,.1)}
.form-field textarea{resize:vertical;min-height:110px}
.form-submit{width:100%;padding:16px;border:none;border-radius:12px;background:linear-gradient(120deg,var(--c-orange),var(--c-pink));color:#fff;font-size:16px;font-weight:800;cursor:pointer;transition:.26s;box-shadow:0 10px 26px rgba(255,70,60,.34);font-family:inherit}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,70,60,.46)}
.form-submit:active{transform:scale(.98)}
.form-tip{font-size:12px;color:var(--c-gray);text-align:center;margin-top:14px}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{border-radius:15px;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);overflow:hidden;transition:.26s}
.faq-item:hover{box-shadow:var(--shadow-md)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;background:none;border:none;cursor:pointer;font-family:inherit;font-size:15.5px;font-weight:800;color:var(--c-ink);text-align:left}
.faq-q .icon{flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#eef2ff;color:var(--c-blue);font-size:16px;font-weight:900;transition:.3s}
.faq-item.open .faq-q .icon{background:linear-gradient(120deg,var(--c-orange),var(--c-pink));color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease,padding .3s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:420px;padding:0 24px 22px}
.faq-a p{font-size:14.5px;color:var(--c-gray);line-height:1.75}

/* ===== Wiki / news ===== */
.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.wiki-card{padding:26px;border-radius:var(--radius);background:linear-gradient(160deg,#fff,#f7f9ff);border:1px solid var(--c-line);transition:.28s}
.wiki-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.wiki-card h4{font-size:16px;font-weight:800;margin-bottom:10px;color:var(--c-blue)}
.wiki-card p{font-size:13.5px;color:var(--c-gray);line-height:1.7}

/* ===== Partner / join ===== */
.join-band{background:linear-gradient(120deg,#0b1440,#2a1b8f);border-radius:26px;padding:52px 44px;color:#fff;position:relative;overflow:hidden;display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center}
.join-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,0,.45),transparent 65%);top:-180px;right:-120px}
.join-band h3{font-size:28px;font-weight:900;margin-bottom:14px;position:relative;z-index:1}
.join-band p{font-size:15px;color:rgba(255,255,255,.84);max-width:620px;position:relative;z-index:1}
.join-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1}
.join-actions .btn{width:100%}

/* ===== Footer ===== */
.site-footer{background:#0a0f24;color:#b9c0d8;padding:66px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .ai-page-logo{height:42px;width:auto;margin-bottom:16px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13.5px;line-height:1.75;color:#8f98b5;max-width:320px}
.footer-col h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:#8f98b5;transition:.2s}
.footer-col a:hover{color:var(--c-yellow);padding-left:4px}
.footer-qr{display:flex;flex-direction:column;gap:12px}
.footer-qr img{width:130px;height:130px;object-fit:cover;border-radius:12px;border:3px solid rgba(255,255,255,.14);background:#fff}
.footer-qr span{font-size:12.5px;color:#8f98b5}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:#77809c}
.footer-bottom .fl-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom .fl-links a{color:#8f98b5;transition:.2s}
.footer-bottom .fl-links a:hover{color:var(--c-yellow)}

/* ===== Floating ===== */
.float-btn{position:fixed;right:22px;bottom:26px;display:flex;flex-direction:column;gap:12px;z-index:800}
.float-btn a,.float-btn button{width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;color:#fff;border:none;cursor:pointer;font-size:20px;font-weight:900;box-shadow:0 10px 26px rgba(20,30,70,.28);transition:.26s;font-family:inherit}
.float-btn .f-service{background:linear-gradient(135deg,var(--c-blue),var(--c-cyan))}
.float-btn .f-top{background:linear-gradient(135deg,var(--c-orange),var(--c-pink));opacity:0;pointer-events:none}
.float-btn .f-top.show{opacity:1;pointer-events:auto}
.float-btn a:hover,.float-btn button:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 16px 34px rgba(20,30,70,.38)}

/* ===== Responsive ===== */
@media(max-width:1080px){
  .nav-links{position:fixed;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 18px 22px;gap:4px;border-bottom:1px solid var(--c-line);box-shadow:0 18px 30px rgba(20,30,70,.1);transform:translateY(-130%);transition:transform .34s ease;max-height:calc(100vh - 74px);overflow-y:auto}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:13px 14px;border-radius:10px;font-size:15px}
  .nav-cta{margin:8px 0 0;justify-content:center}
  .menu-toggle{display:flex}
  .hero .container{grid-template-columns:1fr;gap:40px}
  .hero-panel{max-width:520px}
  .service-grid,.industry-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .case-grid,.review-grid,.price-grid,.wiki-grid{grid-template-columns:repeat(2,1fr)}
  .network{grid-template-columns:repeat(3,1fr)}
  .form-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .join-band{grid-template-columns:1fr;padding:40px 30px}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .article-list{grid-template-columns:1fr}
}
@media(max-width:680px){
  .section{padding:62px 0}
  .hero{padding:58px 0 66px}
  .hero-actions .btn{width:100%}
  .hero-sub{font-size:15.5px}
  .metrics,.service-grid,.industry-grid,.case-grid,.review-grid,.price-grid,.wiki-grid,.network,.steps,.rating-box,.about-points,.form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .brand-name{font-size:17px}
  .brand .ai-page-logo{height:36px}
  .review-text{font-size:14px}
  .sec-head{margin-bottom:38px}
  .float-btn{right:14px;bottom:16px}
  .float-btn a,.float-btn button{width:46px;height:46px;border-radius:13px;font-size:18px}
  .media-badge{right:0;bottom:0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}