:root{
  --ink:#15162e;
  --ink-soft:#3c3f5c;
  --muted:#6b6f8a;
  --line:#e7e5f3;
  --card:#ffffff;
  --violet:#6a5cff;
  --violet-deep:#4a3ce0;
  --cyan:#20c5e6;
  --pink:#ff7ac4;
  --grad:linear-gradient(115deg,#6a5cff 0%,#20c5e6 50%,#ff7ac4 100%);
  --shadow:0 10px 30px rgba(52,40,120,.08);
  --shadow-hover:0 18px 44px rgba(52,40,120,.16);
  --radius:18px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  background:
    radial-gradient(900px 520px at 6% -8%, #efe9ff 0%, rgba(239,233,255,0) 62%),
    radial-gradient(860px 500px at 98% 2%, #e2f7ff 0%, rgba(226,247,255,0) 60%),
    radial-gradient(820px 520px at 46% 46%, #f3eeff 0%, rgba(243,238,255,0) 66%),
    radial-gradient(760px 480px at 60% 96%, #ffeaf6 0%, rgba(255,234,246,0) 62%),
    #fbfaff;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink)}
p{margin:0}
a{color:var(--violet-deep);text-decoration:none}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
section{padding:68px 0}
.section-tint{
  background:rgba(255,255,255,.58);
  border-top:1px solid rgba(231,229,243,.85);
  border-bottom:1px solid rgba(231,229,243,.85);
}
.section-head{max-width:760px;margin:0 auto 40px;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--violet-deep);font-weight:700;margin-bottom:12px;
}
.eyebrow::before{
  content:"";display:inline-block;width:26px;height:2px;border-radius:2px;
  background:var(--grad);
}
.section-head h2{font-size:clamp(24px,3.2vw,34px);letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px}
.section-head.left{margin-left:0;text-align:left;margin-bottom:28px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;font-family:inherit;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(115deg,#5f4dfa 0%,#7b5cff 42%,#2bb8e8 100%);
  box-shadow:0 8px 22px rgba(95,77,250,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(95,77,250,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(95,77,250,.3)}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line);
  box-shadow:0 4px 14px rgba(52,40,120,.06);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(106,92,255,.4);color:var(--violet-deep);box-shadow:var(--shadow)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:16px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(231,229,243,.9);
}
.site-header::before{
  content:"";display:block;height:3px;background:var(--grad);
}
.nav-inner{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand .ai-page-logo{
  display:block;width:auto !important;height:34px !important;
  max-width:130px !important;object-fit:contain;
}
.brand-text{font-weight:700;font-size:17px;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:var(--ink-soft);font-weight:500;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--violet-deep);background:rgba(106,92,255,.09)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-soft);transition:.2s}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 64px}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none;z-index:0;
}
.hero::before{
  width:420px;height:420px;top:-140px;left:-120px;
  background:radial-gradient(circle,rgba(122,92,255,.32),rgba(122,92,255,0) 70%);
  animation:floatA 14s ease-in-out infinite;
}
.hero::after{
  width:360px;height:360px;bottom:-160px;right:-80px;
  background:radial-gradient(circle,rgba(32,197,230,.3),rgba(32,197,230,0) 70%);
  animation:floatB 16s ease-in-out infinite;
}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(28px,22px)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(-26px,-18px)}}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:48px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,50px);
  letter-spacing:-.02em;line-height:1.18;margin-bottom:18px;
}
.hero-copy h1 .accent{
  color:var(--violet-deep);
}
.hero-lead{color:var(--ink-soft);font-size:16px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;
  font-size:14px;color:var(--muted);
}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--grad);flex:0 0 auto;
}
.hero-panel{display:grid;gap:14px}
.stat-card{
  position:relative;overflow:hidden;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);border-radius:16px;
  padding:16px 18px 16px 22px;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
  animation:riseIn .7s ease both;
}
.stat-card:nth-child(2){animation-delay:.1s}
.stat-card:nth-child(3){animation-delay:.2s}
.stat-card::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.stat-num{
  display:block;font-size:26px;font-weight:800;line-height:1.2;
  color:var(--violet-deep);letter-spacing:-.01em;
}
.stat-label{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-top:2px}
.stat-card p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.6}
@keyframes riseIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* 关于 */
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:start}
.about-copy p{color:var(--ink-soft);font-size:15.5px}
.about-copy p + p{margin-top:14px}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{
  display:inline-block;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--violet-deep);font-weight:600;
  background:rgba(106,92,255,.08);border:1px solid rgba(106,92,255,.16);
}
.ability-list{display:grid;gap:12px}
.ability-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;box-shadow:0 4px 16px rgba(52,40,120,.05);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ability-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:rgba(106,92,255,.28)}
.ability-dot{
  flex:0 0 auto;width:10px;height:10px;border-radius:50%;
  background:var(--grad);margin-top:9px;
}
.ability-item h3{font-size:15px;margin-bottom:2px}
.ability-item p{font-size:13.5px;color:var(--muted);line-height:1.6}

/* 服务卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.svc-card{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.svc-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);opacity:.85;
  transform:scaleX(.35);transform-origin:left;
  transition:transform .35s ease;
}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(106,92,255,.26)}
.svc-card:hover::before{transform:scaleX(1)}
.svc-card h3{font-size:17px;margin-bottom:8px}
.svc-card p{font-size:14px;color:var(--muted);line-height:1.7}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.svc-tags span{
  font-size:12px;color:var(--ink-soft);background:#f4f2fd;
  border-radius:6px;padding:3px 8px;
}
.tag-cloud{
  display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;
  padding:20px;border-radius:var(--radius);
  background:rgba(255,255,255,.8);border:1px dashed rgba(106,92,255,.28);
}
.tag-cloud span{
  font-size:13px;color:var(--ink-soft);
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:5px 12px;transition:.2s;
}
.tag-cloud span:hover{color:var(--violet-deep);border-color:rgba(106,92,255,.4);transform:translateY(-2px)}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:22px 20px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;color:#fff;font-weight:700;font-size:15px;
  background:linear-gradient(135deg,#6a5cff,#20c5e6);
  box-shadow:0 6px 16px rgba(106,92,255,.28);
  margin-bottom:12px;
}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--muted);line-height:1.65}

/* 时间线 */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin-top:8px}
.tl-item{position:relative;padding-top:26px}
.tl-item::before{
  content:"";position:absolute;top:8px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(106,92,255,.45),rgba(32,197,230,.35));
}
.tl-item::after{
  content:"";position:absolute;top:3px;left:0;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--violet);
}
.tl-item h3{font-size:15px;margin-bottom:4px}
.tl-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* 行业方案 */
.sol-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.sol-card{
  background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:0 6px 20px rgba(52,40,120,.06);
  transition:transform .25s ease,box-shadow .25s ease;
}
.sol-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.sol-card h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.sol-card h3::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--grad);flex:0 0 auto;
}
.sol-card p{font-size:13.5px;color:var(--muted);line-height:1.65}

/* 服务网络 */
.net-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.net-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:18px;text-align:center;box-shadow:0 6px 18px rgba(52,40,120,.05);
  transition:transform .22s ease,box-shadow .22s ease;
}
.net-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.net-card h3{font-size:15px;margin-bottom:6px;color:var(--violet-deep)}
.net-card p{font-size:13px;color:var(--muted);line-height:1.6}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-media{aspect-ratio:16/10;background:#f1effa;overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:16px 18px 18px}
.case-body h3{font-size:16px;margin-bottom:6px}
.case-body p{font-size:13.5px;color:var(--muted);line-height:1.65}
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.gallery-item{
  aspect-ratio:16/9;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);background:#f4f2fd;
}
.gallery-item img{width:100%;height:100%;object-fit:cover;display:block}

/* 评测 */
.review-top{
  display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);
  gap:24px;align-items:stretch;margin-bottom:28px;
}
.score-card{
  background:linear-gradient(160deg,rgba(106,92,255,.1),rgba(32,197,230,.1) 55%,rgba(255,122,196,.12));
  border:1px solid rgba(106,92,255,.22);border-radius:var(--radius);
  padding:26px 24px;text-align:center;box-shadow:var(--shadow);
}
.score-num{font-size:46px;font-weight:800;color:var(--violet-deep);line-height:1.1;letter-spacing:-.02em}
.score-total{font-size:15px;color:var(--muted);font-weight:600;margin-top:2px}
.stars{color:#f5a524;font-size:20px;letter-spacing:3px;margin:10px 0 6px}
.score-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.65}
.review-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.review-points li{
  display:flex;align-items:flex-start;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:13.5px;color:var(--ink-soft);
  box-shadow:0 4px 14px rgba(52,40,120,.05);
}
.review-points li::before{
  content:"✓";color:var(--violet-deep);font-weight:800;flex:0 0 auto;
}
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow);
}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:14px}
thead th{
  background:linear-gradient(120deg,rgba(106,92,255,.1),rgba(32,197,230,.1));
  color:var(--ink);font-weight:700;text-align:left;
  padding:14px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:13px 16px;border-bottom:1px solid #f1effa;color:var(--ink-soft);vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#faf9ff}
td.strong{color:var(--violet-deep);font-weight:700}

/* 表单 */
.match-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:32px;align-items:start}
.match-info h2{font-size:clamp(23px,3vw,30px);margin-bottom:14px}
.match-info > p{color:var(--ink-soft);font-size:15px}
.match-note{display:grid;gap:10px;margin-top:20px}
.match-note li{
  font-size:13.5px;color:var(--ink-soft);
  background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:12px;padding:11px 14px;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600;color:var(--ink-soft)}
.field-full{grid-column:1 / -1}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14.5px;font-weight:400;color:var(--ink);
  background:#fbfaff;border:1px solid var(--line);border-radius:10px;
  padding:11px 13px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(106,92,255,.55);background:#fff;
  box-shadow:0 0 0 3px rgba(106,92,255,.12);
}
.field input::placeholder,.field textarea::placeholder{color:#a4a6bd}
.form-card .btn{margin-top:18px;width:100%}
.form-tip{font-size:12.5px;color:var(--muted);margin-top:10px;text-align:center}

/* 帮助中心 */
.help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:0 6px 20px rgba(52,40,120,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.help-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.help-card h3{font-size:16px;margin-bottom:8px}
.help-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:0 18px;margin-bottom:12px;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item[open]{border-color:rgba(106,92,255,.34);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-weight:600;font-size:15px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--violet);
  flex:0 0 auto;transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{font-size:14px;color:var(--muted);line-height:1.75;padding-bottom:16px}

/* 百科 */
.glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.glossary > div{
  background:rgba(255,255,255,.92);border:1px solid var(--line);
  border-left:3px solid rgba(106,92,255,.5);
  border-radius:12px;padding:16px 18px;
  transition:border-left-color .22s ease,transform .22s ease;
}
.glossary > div:hover{border-left-color:var(--cyan);transform:translateX(3px)}
.glossary dt{font-weight:700;font-size:15px;color:var(--ink);margin-bottom:4px}
.glossary dd{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}

/* 资讯 */
.news-list{display:grid;gap:12px}
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;box-shadow:0 4px 16px rgba(52,40,120,.05);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(106,92,255,.28)}
.news-item a{font-weight:600;font-size:15px;color:var(--ink)}
.news-item a:hover{color:var(--violet-deep)}
.news-more{font-size:13px;color:var(--muted);white-space:nowrap;flex:0 0 auto}

/* 评论 */
.review-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:0 6px 20px rgba(52,40,120,.06);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.quote-card .stars{font-size:14px;margin:0;letter-spacing:2px}
.quote-card p{font-size:14px;color:var(--ink-soft);line-height:1.75}
.quote-user{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:14px;
  background:linear-gradient(135deg,#6a5cff,#20c5e6);
}
.quote-user strong{display:block;font-size:14px;color:var(--ink);line-height:1.3}
.quote-user span{font-size:12.5px;color:var(--muted)}

/* 加盟 */
.partner-box{
  background:linear-gradient(150deg,rgba(106,92,255,.12),rgba(32,197,230,.12) 55%,rgba(255,122,196,.14));
  border:1px solid rgba(106,92,255,.2);border-radius:22px;
  padding:36px clamp(20px,4vw,44px);
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:28px;align-items:center;
}
.partner-box h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px}
.partner-box p{font-size:15px;color:var(--ink-soft)}
.partner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.partner-list{display:grid;gap:10px}
.partner-list li{
  background:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.9);
  border-radius:12px;padding:11px 14px;font-size:13.5px;color:var(--ink-soft);
  box-shadow:0 4px 14px rgba(52,40,120,.06);
}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,300px);gap:28px;align-items:start}
.contact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.contact-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;box-shadow:0 4px 16px rgba(52,40,120,.05);
}
.contact-item span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:4px}
.contact-item strong{font-size:15px;color:var(--ink);word-break:break-all}
.contact-item a{font-size:15px;font-weight:600;color:var(--violet-deep)}
.qr-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:18px;text-align:center;box-shadow:var(--shadow);
}
.qr-card img{
  width:170px;height:170px;object-fit:contain;display:block;
  margin:0 auto 10px;border-radius:10px;background:#fbfaff;
}
.qr-card p{font-size:13.5px;color:var(--muted)}

/* 页脚 */
.site-footer{
  background:rgba(255,255,255,.92);
  border-top:1px solid var(--line);
  padding:44px 0 22px;
  color:var(--ink-soft);
}
.footer-main{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);
  gap:32px;align-items:start;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .ai-page-logo{display:block;width:auto !important;height:30px !important;max-width:120px !important;object-fit:contain}
.footer-brand strong{font-size:16px;color:var(--ink)}
.footer-col h3{font-size:14.5px;margin-bottom:12px;color:var(--ink)}
.footer-col p,.footer-col a{font-size:13.5px;color:var(--ink-soft);line-height:1.9;display:block}
.footer-col a:hover{color:var(--violet-deep)}
.footer-link-list{display:flex;flex-wrap:wrap;gap:8px}
.footer-link-list a{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:#f6f4ff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-soft);transition:.2s;
}
.footer-link-list a:hover{color:var(--violet-deep);border-color:rgba(106,92,255,.4);transform:translateY(-2px)}
.footer-bottom{
  margin-top:30px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--violet-deep)}

/* 浮动工具 */
.float-tools{
  position:fixed;right:16px;bottom:20px;z-index:80;
  display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.float-btn{
  width:52px;height:52px;border-radius:50%;border:1px solid rgba(106,92,255,.24);
  background:#fff;color:var(--violet-deep);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(52,40,120,.18);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  font-family:inherit;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(52,40,120,.24)}
.float-btn svg{display:block}
.service-panel{
  position:absolute;right:0;bottom:64px;width:238px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px;box-shadow:var(--shadow-hover);text-align:center;
}
.service-panel img{
  width:170px;height:170px;object-fit:contain;display:block;
  margin:0 auto 8px;border-radius:10px;background:#fbfaff;
}
.service-panel p{font-size:13px;color:var(--muted);line-height:1.7}
.service-panel strong{display:block;font-size:14px;color:var(--ink);margin-bottom:6px}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1120px){
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    border-radius:0 0 16px 16px;
    padding:8px 20px 16px;
    box-shadow:0 22px 40px rgba(52,40,120,.14);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 4px;border-radius:0;border-bottom:1px solid #f2f0fb;font-size:15px}
  .nav-links a:last-child{border-bottom:none}
  .nav-toggle{display:flex}
}
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .about-grid{grid-template-columns:1fr;gap:26px}
  .card-grid,.sol-grid,.case-grid,.help-grid,.review-cards,.net-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .review-top{grid-template-columns:1fr}
  .match-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .partner-box{grid-template-columns:1fr}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  section{padding:52px 0}
  .hero{padding:52px 0 46px}
  .card-grid,.sol-grid,.case-grid,.help-grid,.review-cards,.net-grid,
  .steps,.timeline,.gallery,.glossary,.contact-list,.review-points{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .news-item{flex-direction:column;align-items:flex-start;gap:6px}
  .hero-actions .btn{flex:1 1 auto}
  .brand-text{font-size:15.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

.reveal{opacity:1;transform:none}