*{margin:0;padding:0;box-sizing:border-box}
:root{
  --brand:#2b5cff;
  --brand-2:#00c2a8;
  --brand-3:#ff7a45;
  --ink:#15213b;
  --ink-2:#3d4a66;
  --ink-3:#6b7793;
  --bg:#f5f8ff;
  --card:#ffffff;
  --line:#e3e9f7;
  --radius:16px;
  --shadow:0 10px 30px rgba(43,92,255,.08);
  --shadow-lg:0 18px 48px rgba(43,92,255,.14);
}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 85% -10%,rgba(0,194,168,.10),transparent 60%),
    radial-gradient(900px 520px at 5% 0%,rgba(43,92,255,.12),transparent 55%),
    linear-gradient(180deg,#f5f8ff 0%,#eef3ff 100%);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);background:rgba(43,92,255,.08);padding:6px 14px;border-radius:99px;margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
.section-head h2{font-size:clamp(24px,3.4vw,34px);line-height:1.25;letter-spacing:-.01em;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15.5px}
.center-head{margin-left:auto;margin-right:auto;text-align:center}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;backdrop-filter:blur(12px);background:rgba(255,255,255,.88);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
.brand img{width:auto;max-height:34px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{display:block;font-size:14px;font-weight:600;color:var(--ink-2);padding:8px 11px;border-radius:8px;transition:color .2s,background .2s}
.nav-links a:hover{color:var(--brand);background:rgba(43,92,255,.07)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:11px 22px;border-radius:99px;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .2s,color .2s;white-space:nowrap}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:linear-gradient(135deg,var(--brand),#584fff);color:#fff;box-shadow:0 10px 24px rgba(43,92,255,.28)}
.btn-primary:hover{box-shadow:0 14px 30px rgba(43,92,255,.38);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:13.5px}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:70px 0 60px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);z-index:0}
.hero::before{width:420px;height:420px;background:rgba(43,92,255,.18);top:-160px;right:-80px}
.hero::after{width:340px;height:340px;background:rgba(0,194,168,.16);bottom:-180px;left:-100px}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);background:#fff;border:1px solid var(--line);padding:7px 15px;border-radius:99px;box-shadow:var(--shadow);margin-bottom:20px}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--brand-2);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(0,194,168,.5)}50%{box-shadow:0 0 0 6px rgba(0,194,168,0)}}
.hero h1{font-size:clamp(30px,4.4vw,46px);line-height:1.2;letter-spacing:-.02em;margin-bottom:18px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand),#7b5bff 45%,var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;color:var(--ink-2);max-width:540px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:560px}
.stat-card{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-card b{display:block;font-size:23px;line-height:1.15;color:var(--brand)}
.stat-card span{font-size:13px;color:var(--ink-3)}
.hero-panel{position:relative;background:linear-gradient(160deg,#ffffff,#f2f6ff);border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:var(--shadow-lg)}
.hero-panel h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-panel h3 i{width:8px;height:8px;border-radius:50%;background:var(--brand);display:inline-block}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{font-size:12.5px;font-weight:600;color:var(--ink-2);background:#fff;border:1px solid var(--line);padding:5px 11px;border-radius:99px;transition:.2s}
.tag-cloud span:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.hero-panel .panel-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.hero-panel .panel-foot a{color:var(--brand);font-weight:700}

/* 通用卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;height:100%}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(43,92,255,.28)}
.card h3{font-size:17px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--ink-2)}
.icon-box{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:20px;font-weight:800;color:#fff;margin-bottom:16px;background:linear-gradient(135deg,var(--brand),#5b7dff)}
.icon-box.green{background:linear-gradient(135deg,var(--brand-2),#37d6a0)}
.icon-box.orange{background:linear-gradient(135deg,var(--brand-3),#ffb347)}
.icon-box.purple{background:linear-gradient(135deg,#7b5bff,#a77bff)}

/* 关于 */
.about-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:stretch}
.about-main{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
.about-main h2{font-size:clamp(22px,3vw,30px);margin-bottom:16px;line-height:1.3}
.about-main p{color:var(--ink-2);font-size:15px;margin-bottom:14px}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.about-points li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);font-weight:600}
.about-points li::before{content:"✓";color:var(--brand-2);font-weight:900}
.about-side{display:flex;flex-direction:column;gap:16px}
.side-card{background:linear-gradient(150deg,#fff,#eff4ff);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.side-card h3{font-size:15.5px;margin-bottom:12px}
.mini-list li{font-size:14px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed var(--line);display:flex;justify-content:space-between;gap:10px}
.mini-list li:last-child{border-bottom:none}
.mini-list b{color:var(--brand);font-weight:800}

/* 服务能力 */
.service-card{position:relative;overflow:hidden}
.service-card::after{content:"";position:absolute;top:-40px;right:-40px;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,rgba(43,92,255,.10),transparent 70%)}
.service-card .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--brand);background:rgba(43,92,255,.08);padding:4px 10px;border-radius:99px;margin-top:14px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 18px;box-shadow:var(--shadow);position:relative;transition:transform .25s,box-shadow .25s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.step .num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.1em;margin-bottom:10px}
.step h3{font-size:15px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink-3)}

/* 行业方案 */
.solution{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.solution-card{border-radius:16px;padding:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.solution-card h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.solution-card h3::before{content:"";width:5px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--brand-2))}
.solution-card p{font-size:14px;color:var(--ink-2)}

/* 服务网络 */
.network{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net-card{background:linear-gradient(160deg,#fff,#f3f7ff);border:1px solid var(--line);border-radius:16px;padding:20px;text-align:center;box-shadow:var(--shadow);transition:transform .25s}
.net-card:hover{transform:translateY(-4px)}
.net-card b{display:block;font-size:16px;margin-bottom:6px}
.net-card span{font-size:13px;color:var(--ink-3)}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:#eef3ff}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:18px 20px;flex:1;display:flex;flex-direction:column;gap:8px}
.case-body h3{font-size:16px}
.case-body p{font-size:13.5px;color:var(--ink-2)}
.case-body .case-tag{font-size:12px;font-weight:700;color:var(--brand-2);background:rgba(0,194,168,.10);padding:3px 9px;border-radius:99px;display:inline-block;align-self:flex-start}
.portrait-media{aspect-ratio:4/5;overflow:hidden;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow);background:#eef3ff}
.portrait-media img{width:100%;height:100%;object-fit:cover}

/* 对比 */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.compare-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:24px 26px;background:linear-gradient(135deg,rgba(43,92,255,.07),rgba(0,194,168,.07));border-bottom:1px solid var(--line)}
.compare-score{display:flex;align-items:baseline;gap:10px}
.compare-score b{font-size:44px;line-height:1;color:var(--brand);font-weight:900}
.compare-score .max{font-size:16px;color:var(--ink-3);font-weight:700}
.stars{color:#ffb020;font-size:20px;letter-spacing:3px}
.compare-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
table.compare thead th{background:#f7faff;font-weight:800;color:var(--ink);font-size:13.5px;letter-spacing:.02em}
table.compare tbody tr:hover{background:#f9fbff}
table.compare td:first-child{font-weight:700;color:var(--ink)}
table.compare .yes{color:#12a67c;font-weight:800}
table.compare .hl{color:var(--brand);font-weight:800}

/* 评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:transform .25s,box-shadow .25s}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.review-card .quote{font-size:14.5px;color:var(--ink-2);flex:1}
.review-user{display:flex;align-items:center;gap:11px;padding-top:12px;border-top:1px dashed var(--line)}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;background:linear-gradient(135deg,var(--brand),#6b8bff);flex-shrink:0}
.avatar.g{background:linear-gradient(135deg,var(--brand-2),#3dd6a5)}
.avatar.o{background:linear-gradient(135deg,var(--brand-3),#ffb866)}
.avatar.p{background:linear-gradient(135deg,#7b5bff,#a98bff)}
.review-user b{display:block;font-size:14px}
.review-user span{font-size:12.5px;color:var(--ink-3)}
.review-stars{color:#ffb020;font-size:13px;letter-spacing:2px}

/* Token 比价 */
.price-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.price-scroll{overflow-x:auto}
table.price{width:100%;border-collapse:collapse;min-width:560px}
table.price th,table.price td{padding:14px 18px;font-size:14px;text-align:left;border-bottom:1px solid var(--line)}
table.price thead th{background:#f7faff;font-weight:800;font-size:13.5px}
table.price td:first-child{font-weight:700}
table.price .save{color:#12a67c;font-weight:800}
.price-note{padding:16px 20px;font-size:13px;color:var(--ink-3);background:#fbfdff;border-top:1px solid var(--line)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.faq-q{width:100%;background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:15.5px;font-weight:700;color:var(--ink);text-align:left;font-family:inherit;transition:color .2s}
.faq-q:hover{color:var(--brand)}
.faq-q .arrow{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:rgba(43,92,255,.09);color:var(--brand);display:grid;place-items:center;font-size:14px;transition:transform .3s,background .2s}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2)}

/* 资讯/文章 */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;gap:10px}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.article-card .date{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:.04em}
.article-card h3{font-size:15.5px;line-height:1.45}
.article-card p{font-size:13.5px;color:var(--ink-3);flex:1}
.article-card .more{font-size:13px;font-weight:700;color:var(--brand)}

/* 表单 */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.contact-info{background:linear-gradient(160deg,#fff,#eef4ff);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.contact-info h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px}
.contact-info p{color:var(--ink-2);font-size:15px;margin-bottom:20px}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:var(--ink-2)}
.contact-list li strong{color:var(--ink);min-width:76px;display:inline-block}
.qr-box{margin-top:22px;display:flex;align-items:center;gap:16px;padding-top:20px;border-top:1px dashed var(--line)}
.qr-box img{width:92px;height:92px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.qr-box span{font-size:13.5px;color:var(--ink-3)}
.qr-box b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:4px}
form.contact-form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px}
form.contact-form h3{font-size:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);background:#f9fbff;border:1px solid var(--line);border-radius:10px;padding:11px 14px;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,92,255,.12)}
.field textarea{resize:vertical;min-height:96px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.contact-form .btn-primary{width:100%;padding:13px}
.form-tip{font-size:12.5px;color:var(--ink-3);text-align:center}

/* 加盟 */
.join-wrap{background:linear-gradient(135deg,#15213b,#22345c);border-radius:22px;padding:40px;color:#fff;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;box-shadow:0 20px 50px rgba(21,33,59,.28)}
.join-wrap h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px;line-height:1.3}
.join-wrap p{font-size:15px;color:#c8d3ea;margin-bottom:20px}
.join-tags{display:flex;flex-wrap:wrap;gap:9px}
.join-tags span{font-size:13px;font-weight:600;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:6px 13px;border-radius:99px;color:#e6edff}
.join-cta{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.join-cta .btn-primary{background:linear-gradient(135deg,#00c2a8,#2b5cff)}
.join-cta .btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.25)}
.join-cta .btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}

/* 页脚 */
.site-footer{background:#101a2e;color:#c8d3ea;padding:52px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-weight:800;font-size:17px;color:#fff}
.footer-brand img{max-height:32px;width:auto}
.site-footer p{font-size:13.5px;color:#9fb0cd;line-height:1.7}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:800}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13.5px;color:#9fb0cd;transition:color .2s}
.footer-col a:hover{color:#5fc9ff}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 16px}
.footer-links a{font-size:13px;color:#9fb0cd}
.footer-links a:hover{color:#5fc9ff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:18px 0;font-size:13px;color:#8fa1c0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}

/* 浮动客服 */
.float-kefu{position:fixed;right:18px;bottom:88px;z-index:70}
.float-kefu button{width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,var(--brand),#5b7dff);color:#fff;font-size:12px;font-weight:800;box-shadow:0 10px 26px rgba(43,92,255,.42);display:grid;place-items:center;transition:transform .2s}
.float-kefu button:hover{transform:scale(1.08)}
.kefu-pop{position:absolute;right:64px;bottom:0;width:212px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow-lg);display:none;text-align:center}
.kefu-pop.show{display:block;animation:fadeUp .25s ease}
.kefu-pop img{width:100%;border-radius:10px;margin-bottom:10px}
.kefu-pop b{font-size:13.5px;display:block;margin-bottom:4px}
.kefu-pop span{font-size:12px;color:var(--ink-3)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.to-top{position:fixed;right:18px;bottom:24px;z-index:70;width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center;color:var(--brand);font-size:18px;font-weight:800;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.25s}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}

/* 动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* 响应式 */
@media(max-width:1024px){
  .hero-grid,.about-wrap,.contact-wrap,.join-wrap{grid-template-columns:1fr}
  .grid-4,.solution,.network,.case-grid,.reviews,.article-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 16px;box-shadow:0 16px 30px rgba(21,33,59,.10)}
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 12px;border-radius:8px}
  .menu-toggle{display:flex}
  .nav-cta .btn-ghost{display:none}
  .nav-cta .btn-primary span.long{display:none}
  .site-header{position:sticky}
  .nav-wrap{position:relative}
}
@media(max-width:640px){
  .section{padding:46px 0}
  .hero{padding:48px 0 44px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .grid-3,.grid-2,.grid-4,.solution,.network,.case-grid,.reviews,.article-grid,.steps,.about-points{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .join-wrap{padding:28px}
  .form-row{grid-template-columns:1fr}
  .compare-top{padding:20px}
  .compare-score b{font-size:36px}
  .float-kefu{bottom:84px;right:14px}
  .to-top{right:14px;bottom:22px}
  .kefu-pop{right:0;bottom:64px}
}