:root{
  --orange:#FF6A00;
  --orange-deep:#E85A00;
  --orange-soft:#FFF1E6;
  --orange-line:#FFD9BF;
  --ink:#1F1A17;
  --ink-2:#3D342E;
  --muted:#6E625A;
  --bg:#FFFBF7;
  --card:#FFFFFF;
  --line:#EADFD6;
  --shadow:0 10px 30px rgba(255,106,0,.08);
  --shadow-hover:0 18px 44px rgba(255,106,0,.16);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
section{position:relative;}
.section-pad{padding:76px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--orange-deep);
  background:var(--orange-soft);
  border:1px solid var(--orange-line);
  padding:6px 14px;border-radius:999px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.section-title{
  font-size:clamp(24px,3.4vw,34px);
  line-height:1.3;font-weight:800;color:var(--ink);
  letter-spacing:-.01em;
}
.section-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:720px;}
.section-head{margin-bottom:40px;}

/* 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:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#FF8A2B,#FF5A00);
  color:#fff;box-shadow:0 10px 24px rgba(255,90,0,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,90,0,.36);}
.btn-ghost{
  background:#fff;color:var(--ink-2);border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn:active{transform:scale(.97);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,251,247,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.ai-page-logo{height:36px;width:auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
.nav-links a{
  font-size:14px;color:var(--ink-2);font-weight:600;
  padding:8px 11px;border-radius:9px;transition:color .2s,background .2s;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--orange-deep);background:var(--orange-soft);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-actions .btn{padding:9px 16px;font-size:13.5px;border-radius:10px;}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);border-radius:10px;
  width:42px;height:42px;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.25s;}
.mobile-menu{
  display:none;border-top:1px solid var(--line);
  padding:10px 0 18px;
}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:block;padding:11px 6px;font-size:14.5px;font-weight:600;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.mobile-menu a:last-child{border-bottom:none;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 88% -8%,rgba(255,138,43,.20),transparent 62%),
    radial-gradient(760px 420px at 2% 108%,rgba(255,90,0,.12),transparent 60%),
    linear-gradient(180deg,#FFF6EE 0%,#FFFBF7 78%);
  padding:64px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,106,0,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,106,0,.055) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 74%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 74%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.hero-copy h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.22;font-weight:900;letter-spacing:-.02em;color:var(--ink);
  margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:var(--orange-deep);position:relative;}
.hero-copy h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:9px;
  background:rgba(255,138,43,.26);border-radius:6px;z-index:-1;
}
.hero-lead{font-size:16px;color:var(--ink-2);max-width:560px;margin-bottom:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
.hero-tags span{
  font-size:12.5px;font-weight:700;color:var(--orange-deep);
  background:#fff;border:1px solid var(--orange-line);
  padding:5px 12px;border-radius:999px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-note{margin-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.hero-note::before{content:"";width:8px;height:8px;border-radius:50%;background:#22B573;box-shadow:0 0 0 4px rgba(34,181,115,.16);}
.hero-panel{position:relative;display:grid;gap:14px;}
.panel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
}
.panel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.panel-card .pc-label{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--orange-deep);}
.panel-card .pc-value{font-size:26px;font-weight:900;color:var(--ink);margin-top:4px;letter-spacing:-.02em;}
.panel-card .pc-desc{font-size:13px;color:var(--muted);margin-top:2px;}
.panel-split{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.panel-split .panel-card .pc-value{font-size:22px;}
.mini-bars{display:flex;align-items:flex-end;gap:6px;height:44px;margin-top:12px;}
.mini-bars i{
  display:block;flex:1;border-radius:5px 5px 2px 2px;
  background:linear-gradient(180deg,#FFB27A,#FF6A00);
  transform-origin:bottom;animation:barGrow 1.1s cubic-bezier(.2,.8,.3,1) both;
}
.mini-bars i:nth-child(2){animation-delay:.08s;opacity:.85}
.mini-bars i:nth-child(3){animation-delay:.16s;opacity:.7}
.mini-bars i:nth-child(4){animation-delay:.24s;opacity:.55}
.mini-bars i:nth-child(5){animation-delay:.32s;opacity:.4}
@keyframes barGrow{from{transform:scaleY(.12);opacity:0}to{transform:scaleY(1)}}

/* 数据指标条 */
.stats-strip{
  background:linear-gradient(135deg,#FF7A1A,#FF5A00);
  color:#fff;
  padding:30px 0;
  position:relative;overflow:hidden;
}
.stats-strip::after{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;z-index:1;}
.stat-item{text-align:center;}
.stat-item strong{display:block;font-size:clamp(22px,3vw,30px);font-weight:900;letter-spacing:-.02em;}
.stat-item span{font-size:13px;opacity:.92;}

/* reveal 动效 */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* 通用卡片 */
.grid{display:grid;gap:20px;}
.g3{grid-template-columns:repeat(3,1fr);}
.g2{grid-template-columns:repeat(2,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--orange-line);}
.card h3{font-size:17.5px;font-weight:800;color:var(--ink);margin-bottom:8px;}
.card p{font-size:14px;color:var(--muted);}
.icon-badge{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FFF0E2,#FFE0C9);
  color:var(--orange-deep);font-weight:900;font-size:17px;margin-bottom:14px;
  border:1px solid var(--orange-line);
}

/* 关于我们 */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.about-list{display:grid;gap:12px;margin-top:22px;}
.about-list li{
  display:flex;gap:11px;font-size:14.5px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 16px;
}
.about-list li::before{
  content:"";flex-shrink:0;width:8px;height:8px;border-radius:50%;margin-top:8px;
  background:var(--orange);
}
.about-media{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:#fff;
}
.about-media img{width:100%;height:auto;}
.media-caption{
  padding:12px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);background:#fff;
}

/* 服务能力 */
.svc-grid{grid-template-columns:repeat(3,1fr);}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  transition:transform .3s ease,box-shadow .3s ease;
  position:relative;overflow:hidden;
}
.svc-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,#FF8A2B,#FF5A00);
  transform:scaleY(0);transform-origin:top;transition:transform .35s ease;
}
.svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.svc-card:hover::before{transform:scaleY(1);}
.svc-card h3{font-size:16.5px;font-weight:800;margin-bottom:7px;}
.svc-card p{font-size:13.5px;color:var(--muted);}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 20px;
  position:relative;transition:transform .3s ease,box-shadow .3s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.flow-item .step{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FF8A2B,#FF5A00);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
}
.flow-item h3{font-size:16px;font-weight:800;margin-bottom:6px;}
.flow-item p{font-size:13.5px;color:var(--muted);}

/* 案例 */
.case-grid{grid-template-columns:repeat(3,1fr);}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.case-thumb{aspect-ratio:16/10;overflow:hidden;background:#FFF3E9;}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .case-thumb img{transform:scale(1.05);}
.case-body{padding:18px 20px 22px;}
.case-body h3{font-size:16px;font-weight:800;margin-bottom:6px;}
.case-body p{font-size:13.5px;color:var(--muted);}
.case-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;}
.case-tags span{
  font-size:11.5px;font-weight:700;color:var(--orange-deep);
  background:var(--orange-soft);border:1px solid var(--orange-line);
  padding:3px 9px;border-radius:999px;
}

/* 对比评测 */
.compare-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:stretch;}
.score-card{
  background:linear-gradient(160deg,#FFF4EA,#FFFFFF 65%);
  border:1px solid var(--orange-line);border-radius:20px;padding:32px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center;
}
.score-num{
  font-size:56px;font-weight:900;letter-spacing:-.03em;
  color:var(--orange-deep);line-height:1;
}
.score-num small{font-size:18px;color:var(--muted);font-weight:700;margin-left:4px;}
.stars{display:flex;gap:5px;margin:14px 0 12px;}
.stars svg{width:22px;height:22px;fill:#FF8A2B;}
.recommend{font-size:14px;font-weight:800;color:var(--ink-2);}
.score-desc{font-size:13.5px;color:var(--muted);margin-top:8px;}
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);}
table{width:100%;border-collapse:collapse;min-width:520px;}
th,td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
th{background:#FFF6EE;color:var(--ink);font-weight:800;font-size:13.5px;white-space:nowrap;}
td:first-child{color:var(--ink-2);font-weight:700;width:34%;}
td{color:var(--muted);}
tr:last-child td{border-bottom:none;}
td .yes{color:#1F9D5B;font-weight:800;}
td .mid{color:var(--orange-deep);font-weight:800;}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud a{
  font-size:13px;font-weight:700;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 15px;
  transition:all .25s ease;
}
.tag-cloud a:hover{color:#fff;background:linear-gradient(135deg,#FF8A2B,#FF5A00);border-color:transparent;transform:translateY(-2px);}

/* 价格参考 */
.price-grid{grid-template-columns:repeat(3,1fr);}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;
  transition:transform .3s ease,box-shadow .3s ease;position:relative;
}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.price-card.featured{border-color:var(--orange);box-shadow:0 14px 36px rgba(255,106,0,.16);}
.price-badge{
  position:absolute;top:-12px;left:24px;font-size:11.5px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#FF8A2B,#FF5A00);padding:4px 12px;border-radius:999px;
}
.price-card h3{font-size:16.5px;font-weight:800;margin-bottom:6px;}
.price-val{font-size:28px;font-weight:900;color:var(--orange-deep);letter-spacing:-.02em;margin:8px 0 4px;}
.price-val small{font-size:13px;color:var(--muted);font-weight:700;}
.price-card ul{margin-top:14px;display:grid;gap:8px;}
.price-card li{font-size:13.5px;color:var(--muted);display:flex;gap:8px;}
.price-card li::before{content:"✓";color:var(--orange);font-weight:900;}

/* 评论 */
.review-grid{grid-template-columns:repeat(3,1fr);}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.review-quote{font-size:14px;color:var(--ink-2);line-height:1.75;}
.review-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#fff;font-size:15px;
  background:linear-gradient(135deg,#FF9A47,#FF5A00);
}
.review-user strong{display:block;font-size:14px;color:var(--ink);}
.review-user span{font-size:12px;color:var(--muted);}

/* 文章 */
.article-list{display:grid;gap:12px;}
.article-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;
  transition:all .25s ease;
}
.article-item:hover{border-color:var(--orange-line);box-shadow:var(--shadow);transform:translateX(4px);}
.article-item .ai-title{font-size:14.5px;font-weight:700;color:var(--ink-2);}
.article-item .ai-arrow{font-size:13px;font-weight:800;color:var(--orange-deep);white-space:nowrap;}

/* 表单 */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start;}
.contact-list{display:grid;gap:14px;margin-top:22px;}
.contact-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  display:flex;gap:12px;align-items:flex-start;transition:box-shadow .25s ease;
}
.contact-item:hover{box-shadow:var(--shadow);}
.contact-item .ci-label{font-size:12px;font-weight:800;color:var(--orange-deep);letter-spacing:.06em;}
.contact-item .ci-value{font-size:14.5px;color:var(--ink-2);font-weight:600;word-break:break-all;}
form.req-form{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;
  box-shadow:var(--shadow);display:grid;gap:16px;
}
form.req-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
form.req-form label{display:block;font-size:13px;font-weight:800;color:var(--ink-2);margin-bottom:6px;}
form.req-form input,form.req-form select,form.req-form textarea{
  width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--line);
  background:#FFFDFB;color:var(--ink);font-size:14px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
form.req-form input:focus,form.req-form select:focus,form.req-form textarea:focus{
  outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(255,106,0,.12);
}
form.req-form textarea{resize:vertical;min-height:104px;}
.form-tip{font-size:12.5px;color:var(--muted);}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item.open{border-color:var(--orange-line);box-shadow:var(--shadow);}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:18px 22px;font-size:15px;font-weight:800;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-family:inherit;
}
.faq-q span.icon{
  flex-shrink:0;width:24px;height:24px;border-radius:8px;background:var(--orange-soft);
  color:var(--orange-deep);display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:900;transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.open .faq-q span.icon{transform:rotate(45deg);background:var(--orange);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .38s ease;
}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--muted);}

/* Token 比价辅助条 */
.token-bar{
  background:linear-gradient(120deg,#2A201B,#3B2C23);
  border-radius:20px;padding:34px;color:#fff;
  display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
}
.token-bar h3{font-size:20px;font-weight:800;color:#fff;margin-bottom:6px;}
.token-bar p{font-size:14px;color:rgba(255,255,255,.78);}
.token-bar .btn-primary{background:#fff;color:var(--orange-deep);box-shadow:none;}
.token-bar .btn-primary:hover{background:#FFF1E6;color:var(--orange-deep);}

/* 页脚 */
.site-footer{
  background:#231B16;color:rgba(255,255,255,.72);
  padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px;}
.site-footer p{font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.8;}
.footer-links{display:grid;gap:9px;}
.site-footer a{color:rgba(255,255,255,.7);font-size:13.5px;transition:color .2s ease;}
.site-footer a:hover{color:#FFB27A;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-qr{display:flex;gap:14px;align-items:center;margin-top:12px;}
.footer-qr img{width:78px;height:78px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:#fff;}
.footer-qr span{font-size:12.5px;color:rgba(255,255,255,.66);}

/* 浮动客服 */
.float-kf{
  position:fixed;right:20px;bottom:24px;z-index:120;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end;
}
.float-kf .kf-btn{
  width:52px;height:52px;border-radius:16px;border:none;cursor:pointer;
  background:linear-gradient(135deg,#FF8A2B,#FF5A00);color:#fff;
  font-size:13px;font-weight:800;
  box-shadow:0 12px 26px rgba(255,90,0,.32);
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,box-shadow .25s ease;
}
.float-kf .kf-btn:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(255,90,0,.4);}
.kf-panel{
  display:none;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px;box-shadow:0 18px 44px rgba(31,26,23,.16);width:210px;text-align:center;
}
.kf-panel.open{display:block;animation:fadeUp .28s ease both;}
.kf-panel img{width:150px;height:150px;object-fit:cover;border-radius:10px;margin:0 auto 8px;}
.kf-panel p{font-size:12.5px;color:var(--muted);}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* 返回顶部 */
.to-top{
  width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--line);
  color:var(--orange-deep);font-weight:900;cursor:pointer;font-size:16px;
  box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}

/* 响应式 */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-panel{order:-1;}
  .g4,.svc-grid,.flow,.case-grid,.review-grid,.price-grid{grid-template-columns:repeat(2,1fr);}
  .about-wrap,.compare-wrap,.form-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-ghost{display:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
  .token-bar{grid-template-columns:1fr;}
}
@media(max-width:640px){
  .section-pad{padding:54px 0;}
  .hero{padding:44px 0 52px;}
  .g2,.g3,.svc-grid,.flow,.case-grid,.review-grid,.price-grid{grid-template-columns:1fr;}
  .g4{grid-template-columns:1fr 1fr;}
  .panel-split{grid-template-columns:1fr 1fr;}
  form.req-form{padding:22px;}
  form.req-form .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .float-kf{right:14px;bottom:16px;}
  .hero-tags span{font-size:12px;}
  .score-num{font-size:46px;}
  .nav-actions .btn-primary{padding:9px 13px;font-size:13px;}
  .brand-sub{display:none;}
  .article-item{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}