*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  font-size:15px;
  line-height:1.7;
  color:#0f172a;
  background-color:#f6f8ff;
  background-image:
    radial-gradient(760px 420px at 6% -4%,rgba(124,58,237,.16),transparent 62%),
    radial-gradient(680px 400px at 96% 2%,rgba(8,145,178,.16),transparent 62%),
    radial-gradient(760px 460px at 50% 48%,rgba(219,39,119,.06),transparent 66%),
    radial-gradient(720px 440px at 88% 94%,rgba(124,58,237,.10),transparent 64%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:58px 0}
.kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2px;color:#6d28d9;margin-bottom:12px}
.section-head{max-width:770px;margin:0 auto 38px;text-align:center}
.section-head h2{font-size:clamp(23px,3.2vw,32px);margin-bottom:14px}
.section-head p{color:#5b6b85;font-size:15px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:linear-gradient(135deg,#6d28d9,#0891b2);color:#fff;box-shadow:0 10px 24px rgba(109,40,217,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(109,40,217,.36)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:#0f172a;border-color:#cbd5e1;box-shadow:0 4px 12px rgba(15,23,42,.05)}
.btn-outline:hover{transform:translateY(-2px);border-color:#a5b4fc;color:#4338ca}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.88);backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);border-bottom:1px solid rgba(15,23,42,.07)}
.nav-wrap{display:flex;align-items:center;gap:14px;min-height:68px}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;font-weight:800;font-size:17px;color:#0f172a;letter-spacing:.4px}
.ai-page-logo{max-width:118px;max-height:34px;width:auto;height:auto;display:block;border-radius:6px}
.nav{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.nav-links{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:9px 9px;font-size:13.5px;color:#334155;border-radius:8px;white-space:nowrap;transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:#5b21b6;background:rgba(109,40,217,.08)}
.nav-actions{flex:0 0 auto;display:flex;align-items:center;gap:8px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid #e2e8f0;background:#fff;align-items:center;justify-content:center;cursor:pointer;padding:0}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:#0f172a;border-radius:2px;transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#0f172a;border-radius:2px;transition:transform .25s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{padding:56px 0 46px}
.hero-inner{display:grid;grid-template-columns:1.12fr .88fr;gap:42px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:rgba(109,40,217,.10);border:1px solid rgba(109,40,217,.22);color:#5b21b6;font-size:12.5px;font-weight:600;letter-spacing:.5px}
.hero h1{margin:18px 0 16px;font-size:clamp(28px,4.4vw,44px);line-height:1.22;letter-spacing:-.6px}
.hero-lead{color:#475569;font-size:15.5px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-meta span{font-size:12.5px;color:#475569;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid #e6ebf5}

.hero-panel{position:relative;background:#fff;border:1px solid #e6ebf5;border-radius:20px;padding:24px 22px;box-shadow:0 24px 60px rgba(30,41,84,.10)}
.hero-panel::before{content:"";position:absolute;inset:-2px;border-radius:22px;background:linear-gradient(135deg,rgba(109,40,217,.35),rgba(8,145,178,.30),rgba(219,39,119,.25));z-index:-1;filter:blur(14px);opacity:.55}
.panel-head{display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:700;color:#0f172a;padding-bottom:14px;border-bottom:1px dashed #e2e8f0}
.panel-head i{display:block;width:8px;height:18px;border-radius:4px;background:linear-gradient(180deg,#8b5cf6,#0891b2);animation:pulseBar 2.6s ease-in-out infinite}
@keyframes pulseBar{0%,100%{transform:scaleY(1);opacity:1}50%{transform:scaleY(.6);opacity:.65}}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 18px}
.chips span{font-size:12.5px;color:#334155;padding:5px 11px;border-radius:8px;background:#f4f6fd;border:1px solid #e6ebf5;transition:transform .2s ease,color .2s ease,border-color .2s ease}
.chips span:hover{transform:translateY(-2px);color:#5b21b6;border-color:#c4b5fd}
.panel-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding-top:16px;border-top:1px dashed #e2e8f0;text-align:center}
.panel-foot b{display:block;font-size:19px;color:#6d28d9}
.panel-foot small{font-size:12px;color:#64748b}

/* ---------- 指标 ---------- */
.metrics{padding:10px 0 0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric{background:#fff;border:1px solid #e6ebf5;border-radius:16px;padding:22px 20px;box-shadow:0 10px 28px rgba(15,23,42,.05);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.metric:hover{transform:translateY(-4px);border-color:#c7d2fe;box-shadow:0 18px 36px rgba(79,70,229,.13)}
.metric b{display:block;font-size:26px;line-height:1.2;color:#4f46e5;margin-bottom:6px}
.metric strong{display:block;font-size:14.5px;color:#0f172a;margin-bottom:4px}
.metric small{display:block;font-size:12.5px;color:#64748b;line-height:1.6}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:42px;align-items:start}
.about-copy h2{font-size:clamp(23px,3.2vw,32px);margin-bottom:16px}
.about-copy p{color:#4a5a72;margin-bottom:14px;font-size:15px}
.check-list{margin:18px 0 26px;display:grid;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:#334155}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:8px;border-left:2px solid #0891b2;border-bottom:2px solid #0891b2;transform:rotate(-45deg);border-radius:1px}
.about-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-card{background:#fff;border:1px solid #e6ebf5;border-radius:14px;padding:18px 16px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.about-card:hover{transform:translateY(-3px);border-color:#ddd6fe;box-shadow:0 14px 28px rgba(109,40,217,.10)}
.about-card h3{font-size:15px;margin-bottom:6px;color:#0f172a}
.about-card p{font-size:13px;color:#64748b;line-height:1.65}

/* ---------- 服务卡 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc-card{position:relative;overflow:hidden;background:#fff;border:1px solid #e6ebf5;border-radius:16px;padding:22px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.svc-card::after{content:"";position:absolute;right:-40px;bottom:-50px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(124,58,237,.16),transparent 70%);opacity:0;transition:opacity .3s ease}
.svc-card:hover{transform:translateY(-4px);border-color:#ddd6fe;box-shadow:0 18px 36px rgba(109,40,217,.12)}
.svc-card:hover::after{opacity:1}
.svc-badge{display:inline-block;font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:999px;margin-bottom:12px}
.svc-card:nth-child(3n+1) .svc-badge{color:#4338ca;background:#eef2ff}
.svc-card:nth-child(3n+2) .svc-badge{color:#0e7490;background:#ecfeff}
.svc-card:nth-child(3n+3) .svc-badge{color:#a21caf;background:#fdf4ff}
.svc-card h3{font-size:16px;margin-bottom:8px}
.svc-card p{font-size:13.5px;color:#5b6b85;line-height:1.68}

/* ---------- 标签云 ---------- */
.studio-wrap{background:#fff;border:1px solid #e6ebf5;border-radius:20px;padding:32px 26px;box-shadow:0 16px 40px rgba(15,23,42,.06)}
.studio-block+.studio-block{margin-top:28px;padding-top:26px;border-top:1px dashed #e2e8f0}
.studio-label{text-align:center;font-size:13px;font-weight:700;letter-spacing:1.5px;color:#6d28d9;margin-bottom:16px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag{display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;background:#f8faff;border:1px solid #e6ebf5;color:#334155;font-size:13.5px;transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease}
.tag:hover{transform:translateY(-2px);border-color:#c4b5fd;color:#5b21b6;background:#fff;box-shadow:0 8px 18px rgba(91,33,182,.12)}

/* ---------- 行业方案 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sol-card{background:linear-gradient(180deg,#ffffff,#fafbff);border:1px solid #e6ebf5;border-radius:16px;padding:24px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.sol-card:hover{transform:translateY(-4px);border-color:#c7d2fe;box-shadow:0 18px 34px rgba(15,23,42,.09)}
.sol-card h3{font-size:16px;margin-bottom:8px}
.sol-card p{font-size:13.5px;color:#5b6b85}
.sol-card ul{margin-top:12px;display:grid;gap:6px}
.sol-card li{position:relative;padding-left:14px;font-size:13px;color:#5b6b85}
.sol-card li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:#8b5cf6}

/* ---------- 服务网络 ---------- */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.net-card{background:#fff;border:1px solid #e6ebf5;border-radius:16px;padding:22px 20px}
.net-card h3{font-size:15.5px;margin-bottom:8px;color:#4338ca}
.net-card p{font-size:13.5px;color:#5b6b85}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.step{background:#fff;border:1px solid #e6ebf5;border-radius:14px;padding:22px 14px;text-align:center;transition:transform .22s ease,box-shadow .22s ease}
.step:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(15,23,42,.08)}
.step em{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;font-style:normal;font-weight:700;font-size:14px;color:#fff;background:linear-gradient(135deg,#6d28d9,#0891b2);margin-bottom:12px}
.step h3{font-size:14.5px;margin-bottom:6px}
.step p{font-size:12.5px;color:#64748b;line-height:1.6}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.case-card{background:#fff;border:1px solid #e6ebf5;border-radius:18px;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.case-card:hover{transform:translateY(-4px);border-color:#ddd6fe;box-shadow:0 20px 40px rgba(109,40,217,.12)}
.case-media{aspect-ratio:16/9;background:linear-gradient(135deg,#eef2ff,#ecfeff);display:flex;align-items:center;justify-content:center;padding:10px}
.case-media img{width:auto;max-width:100%;max-height:100%;object-fit:contain;border-radius:8px}
.case-body{padding:18px 20px 22px}
.case-tag{display:inline-block;font-size:11.5px;font-weight:600;color:#0e7490;background:#ecfeff;padding:3px 10px;border-radius:999px;margin-bottom:10px}
.case-body h3{font-size:15.5px;margin-bottom:8px}
.case-body p{font-size:13.5px;color:#5b6b85}

/* ---------- 对比评测 ---------- */
.score-row{display:grid;grid-template-columns:.62fr 1.38fr;gap:20px;align-items:stretch;margin-bottom:24px}
.score-card{background:linear-gradient(150deg,#6d28d9,#0891b2);border-radius:18px;padding:28px 24px;color:#fff;text-align:center;box-shadow:0 20px 44px rgba(109,40,217,.28)}
.score-num{font-size:46px;font-weight:800;line-height:1.1;letter-spacing:-1px}
.score-num span{font-size:16px;font-weight:600;opacity:.85;margin-left:2px}
.score-stars{font-size:20px;letter-spacing:4px;color:#fde68a;margin:10px 0 6px}
.score-tip{font-size:13px;color:rgba(255,255,255,.9)}
.score-points{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;background:#fff;border:1px solid #e6ebf5;border-radius:18px;padding:24px 22px}
.score-points li{position:relative;padding-left:22px;font-size:13.5px;color:#334155}
.score-points li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:7px;border-left:2px solid #6d28d9;border-bottom:2px solid #6d28d9;transform:rotate(-45deg)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:1px solid #e6ebf5;border-radius:18px}
.cmp-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14px}
.cmp-table th,.cmp-table td{padding:14px 16px;text-align:left;border-bottom:1px solid #eef2f9}
.cmp-table thead th{background:#f6f7ff;font-size:13.5px;color:#4338ca;font-weight:700;white-space:nowrap}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover{background:#fafbff}
.cmp-table td:first-child{font-weight:600;color:#0f172a;white-space:nowrap}
.cmp-table td:nth-child(2){color:#5b21b6;font-weight:600}
.cmp-table td{color:#5b6b85}

/* ---------- 用户评论 ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.testi-card{background:#fff;border:1px solid #e6ebf5;border-radius:16px;padding:22px 20px;display:flex;flex-direction:column;gap:14px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.testi-card:hover{transform:translateY(-4px);border-color:#ddd6fe;box-shadow:0 18px 36px rgba(109,40,217,.10)}
.testi-text{font-size:13.5px;color:#475569;line-height:1.75}
.testi-user{display:flex;align-items:center;gap:10px;margin-top:auto}
.testi-avatar{width:36px;height:36px;flex:0 0 auto;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,#8b5cf6,#0891b2)}
.testi-name{font-size:13.5px;font-weight:600;color:#0f172a}
.testi-role{font-size:12px;color:#8794aa}

/* ---------- Token 比价 ---------- */
.token-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.token-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e6ebf5;border-radius:18px;overflow:hidden;font-size:13.5px}
.token-table th,.token-table td{padding:14px 16px;text-align:left;border-bottom:1px solid #eef2f9;color:#5b6b85}
.token-table thead th{background:#f6f7ff;color:#4338ca;font-size:13px;font-weight:700}
.token-table tbody tr:last-child td{border-bottom:0}
.token-table td:first-child{font-weight:600;color:#0f172a}
.token-list{display:grid;gap:12px}
.token-item{background:#fff;border:1px solid #e6ebf5;border-radius:14px;padding:18px 18px}
.token-item h3{font-size:15px;margin-bottom:6px;color:#0f172a}
.token-item p{font-size:13.5px;color:#5b6b85}

/* ---------- 联系与表单 ---------- */
.contact-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:24px;align-items:start}
.contact-info{background:#fff;border:1px solid #e6ebf5;border-radius:18px;padding:26px 22px;box-shadow:0 16px 36px rgba(15,23,42,.06)}
.contact-info h3{font-size:16px;margin-bottom:16px}
.contact-list{display:grid;gap:12px}
.contact-list li{display:flex;gap:10px;font-size:13.5px;color:#334155;line-height:1.6}
.contact-list b{flex:0 0 74px;color:#64748b;font-weight:600}
.contact-list a{color:#4f46e5;word-break:break-all}
.contact-list a:hover{text-decoration:underline}
.qr-box{margin-top:20px;padding-top:18px;border-top:1px dashed #e2e8f0;text-align:center}
.qr-box img{width:132px;height:auto;margin:0 auto 10px;border-radius:10px;border:1px solid #eef2f9}
.qr-box p{font-size:12.5px;color:#64748b}
.lead-form{background:#fff;border:1px solid #e6ebf5;border-radius:18px;padding:26px 24px;box-shadow:0 16px 36px rgba(15,23,42,.06);display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:13px;font-weight:600;color:#334155}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;font-size:14px;font-family:inherit;color:#0f172a;background:#fbfcff;border:1px solid #dbe3f0;border-radius:10px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;background:#fff;border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,.16)}
.form-note{font-size:12.5px;color:#8794aa}
.lead-form .btn{width:100%}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid #e6ebf5;border-radius:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item.open{border-color:#ddd6fe;box-shadow:0 14px 30px rgba(109,40,217,.10)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;background:transparent;border:0;cursor:pointer;text-align:left;font-size:14.5px;font-weight:600;color:#0f172a;transition:color .2s ease}
.faq-q:hover{color:#5b21b6}
.faq-q i{position:relative;flex:0 0 auto;width:16px;height:16px}
.faq-q i::before,.faq-q i::after{content:"";position:absolute;background:#6d28d9;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.faq-q i::before{left:0;top:7px;width:16px;height:2px}
.faq-q i::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-q i::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 18px;font-size:13.5px;color:#5b6b85;line-height:1.75}

/* ---------- AI百科 ---------- */
.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.wiki-card{background:#fff;border:1px solid #e6ebf5;border-radius:14px;padding:18px 18px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.wiki-card:hover{transform:translateY(-3px);border-color:#c7d2fe;box-shadow:0 12px 26px rgba(15,23,42,.08)}
.wiki-card h3{font-size:14.5px;margin-bottom:6px;color:#4338ca}
.wiki-card p{font-size:13px;color:#64748b}

/* ---------- 资讯 ---------- */
.news-list{max-width:900px;margin:0 auto;display:grid;gap:10px}
.news-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:#fff;border:1px solid #e6ebf5;border-radius:12px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.news-item:hover{transform:translateX(4px);border-color:#c7d2fe;box-shadow:0 10px 24px rgba(15,23,42,.07)}
.news-title{font-size:14px;color:#0f172a;font-weight:600}
.news-arrow{flex:0 0 auto;font-size:14px;color:#8b5cf6}

/* ---------- 加盟 ---------- */
.join-wrap{background:linear-gradient(135deg,#171238,#0d2a44);border-radius:22px;padding:44px 34px;color:#fff;text-align:center;position:relative;overflow:hidden}
.join-wrap::before{content:"";position:absolute;left:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.5),transparent 70%)}
.join-wrap::after{content:"";position:absolute;right:-50px;bottom:-70px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(8,145,178,.45),transparent 70%)}
.join-wrap h2{position:relative;font-size:clamp(22px,3vw,30px);margin-bottom:14px}
.join-wrap p{position:relative;color:rgba(255,255,255,.82);font-size:14.5px;max-width:700px;margin:0 auto 24px}
.join-tags{position:relative;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:26px}
.join-tags span{font-size:12.5px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#e9edf9}
.join-wrap .btn{position:relative;background:#fff;color:#3b1e8f;box-shadow:0 12px 28px rgba(0,0,0,.24)}
.join-wrap .btn:hover{transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0b1026;color:#a9b6cf;padding:52px 0 0;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px;padding-bottom:34px}
.footer-brand h2{color:#fff;font-size:19px;margin-bottom:12px;letter-spacing:.5px}
.footer-brand p{font-size:13.5px;line-height:1.75;color:#a9b6cf;max-width:420px}
.footer-site{margin-top:12px;font-size:13.5px}
.footer-site a{color:#7dd3fc}
.footer-site a:hover{text-decoration:underline}
.footer-col h3{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.5px}
.footer-col ul{display:grid;gap:9px}
.footer-col li{font-size:13.5px;color:#a9b6cf}
.footer-col a{color:#cfd8ea;transition:color .2s ease}
.footer-col a:hover{color:#7dd3fc}
.friend-links{border-top:1px solid rgba(255,255,255,.10);padding:22px 0}
.friend-links h3{color:#fff;font-size:13.5px;margin-bottom:12px;letter-spacing:.5px}
.friend-list{display:flex;flex-wrap:wrap;gap:8px 18px}
.friend-list a{font-size:12.5px;color:#9fb0cd;transition:color .2s ease}
.friend-list a:hover{color:#7dd3fc}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:16px 0 20px;text-align:center}
.footer-bottom p{font-size:12.5px;color:#8695b3}

/* ---------- 浮动工具 ---------- */
.float-tools{position:fixed;right:18px;bottom:22px;z-index:300;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{width:48px;height:48px;border-radius:14px;border:1px solid rgba(15,23,42,.10);background:#fff;color:#4f46e5;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 12px 28px rgba(15,23,42,.14);transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 18px 32px rgba(79,70,229,.24)}
.float-btn.text{font-size:13px;font-weight:700;letter-spacing:.5px}
#backTop{opacity:0;pointer-events:none;transition:opacity .25s ease,transform .2s ease,box-shadow .2s ease}
#backTop.show{opacity:1;pointer-events:auto}
.kefu-panel{position:absolute;right:0;bottom:118px;width:206px;background:#fff;border:1px solid #e6ebf5;border-radius:16px;padding:16px;box-shadow:0 22px 46px rgba(15,23,42,.18);text-align:center;opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .25s ease,transform .25s ease}
.kefu-panel.show{opacity:1;transform:translateY(0);pointer-events:auto}
.kefu-panel img{width:150px;height:auto;margin:0 auto 10px;border-radius:8px;border:1px solid #eef2f9}
.kefu-panel p{font-size:12.5px;color:#475569}
.kefu-panel .kefu-qq{margin-top:6px;color:#6d28d9;font-weight:600}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .panel-head i{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1099px){
  .nav{position:absolute;left:0;right:0;top:100%;display:none;justify-content:flex-start;background:#fff;border-bottom:1px solid #e2e8f0;box-shadow:0 18px 30px rgba(15,23,42,.09);padding:8px 20px 18px}
  .nav.open{display:block}
  .nav-links{flex-direction:column;align-items:stretch;justify-content:flex-start}
  .nav-links a{padding:12px 6px;font-size:15px;border-bottom:1px solid #f1f5f9}
  .nav-toggle{display:flex}
  .nav-wrap{justify-content:space-between}
  .nav-actions{margin-left:auto}
}
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .svc-grid{grid-template-columns:1fr 1fr}
  .sol-grid{grid-template-columns:1fr 1fr}
  .net-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .case-grid{grid-template-columns:1fr}
  .score-row{grid-template-columns:1fr}
  .testi-grid{grid-template-columns:1fr 1fr}
  .token-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .wiki-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:640px){
  .section{padding:44px 0}
  .hero{padding:36px 0 34px}
  .svc-grid,.sol-grid,.testi-grid,.wiki-grid,.about-cards{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:12px}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .score-points{grid-template-columns:1fr}
  .join-wrap{padding:34px 20px}
  .footer-grid{grid-template-columns:1fr}
  .float-tools{right:12px;bottom:16px}
  .kefu-panel{right:0;width:190px}
}
@media (max-width:420px){
  .nav-actions .btn{padding:8px 12px;font-size:13px}
  .brand span{font-size:15px}
}