:root{
  --ink:#1a1830;
  --ink2:#3d3a58;
  --muted:#63607b;
  --line:#ece8f8;
  --violet:#7c3aed;
  --blue:#2563eb;
  --cyan:#0ea5e9;
  --pink:#ec4899;
  --amber:#f59e0b;
  --green:#10b981;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:
    radial-gradient(1100px 520px at 88% -8%,#e6f4ff 0%,rgba(230,244,255,0) 60%),
    radial-gradient(900px 480px at 4% 10%,#fde9f5 0%,rgba(253,233,245,0) 58%),
    linear-gradient(180deg,#fbfaff 0%,#f7f5ff 42%,#fdfcff 100%);
  background-repeat:no-repeat;
}
img{display:block;max-width:100%;}
a{color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.32;color:#151329;font-weight:800;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:700;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
}
.btn-primary{color:#fff;background:linear-gradient(120deg,#7c3aed,#2563eb 55%,#0ea5e9);box-shadow:0 12px 26px rgba(88,60,220,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(88,60,220,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:#3d3560;border-color:#e2dcf5;box-shadow:0 6px 16px rgba(80,60,160,.08);}
.btn-ghost:hover{transform:translateY(-2px);border-color:#c7b8f5;box-shadow:0 12px 24px rgba(80,60,160,.14);}
.btn-soft{background:#f3edff;color:#5b36b5;border-color:#e5dbfb;}
.btn-soft:hover{background:#ebe2ff;transform:translateY(-2px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.93);
  backdrop-filter:blur(12px);
  border-bottom:1px solid #ece7fb;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;text-decoration:none;flex:0 0 auto;}
.brand .ai-page-logo{width:152px;height:auto;display:block;}
.nav-wrap{display:flex;align-items:center;}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;}
.nav-links a{
  display:block;padding:8px 11px;border-radius:9px;
  font-size:14.5px;font-weight:500;color:#3d3a58;text-decoration:none;
  white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:#f3efff;color:#6d28d9;}
.nav-toggle{
  display:none;align-items:center;gap:6px;
  border:1px solid #e5dffa;background:#fff;color:#3d3a58;
  padding:8px 14px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:#f5f1ff;border-color:#cdbdfa;}
.header-cta{flex:0 0 auto;padding:10px 20px;font-size:14px;}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:62px 0 70px;
  border-bottom:1px solid #f1ecfc;
  background:
    radial-gradient(780px 380px at 6% -12%,#ffe2f2 0%,rgba(255,226,242,0) 62%),
    radial-gradient(700px 360px at 94% -2%,#ddf1ff 0%,rgba(221,241,255,0) 60%),
    radial-gradient(760px 420px at 50% 118%,#e9e2ff 0%,rgba(233,226,255,0) 66%),
    linear-gradient(180deg,#fdfcff 0%,#f8f6ff 100%);
}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;filter:blur(48px);opacity:.5;pointer-events:none;
}
.hero::before{width:320px;height:320px;background:#c4b5fd;top:-100px;left:-80px;animation:drift1 15s ease-in-out infinite alternate;}
.hero::after{width:280px;height:280px;background:#a5f3fc;bottom:-120px;right:-70px;animation:drift2 17s ease-in-out infinite alternate;}
@keyframes drift1{from{transform:translate3d(0,0,0) scale(1);}to{transform:translate3d(32px,26px,0) scale(1.08);}}
@keyframes drift2{from{transform:translate3d(0,0,0) scale(1);}to{transform:translate3d(-28px,-22px,0) scale(1.06);}}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:36px;align-items:start;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;font-size:13px;font-weight:700;
  color:#6d28d9;background:#fff;border:1px solid #e9e1ff;
  box-shadow:0 6px 16px rgba(109,40,217,.08);
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(120deg,#ec4899,#7c3aed);}
.hero h1{font-size:clamp(27px,4vw,44px);line-height:1.26;margin:18px 0 16px;letter-spacing:-.4px;color:#141227;}
.hero h1 .hl{background:linear-gradient(180deg,transparent 64%,#ffdca8 64%);border-radius:4px;padding:0 2px;color:#141227;}
.hero-sub{font-size:16.5px;color:#514d6b;line-height:1.85;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags li{
  font-size:13px;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.9);border:1px solid #e9e3fb;color:#4d4770;
}
.hero-panel{
  background:rgba(255,255,255,.85);border:1px solid #e9e3fb;border-radius:22px;
  padding:22px;box-shadow:0 22px 46px rgba(90,64,190,.12);
}
.hero-panel h2{font-size:16px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13.5px;color:#63607b;margin-bottom:14px;}
.model-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.model-cloud li{
  font-size:13px;padding:5px 12px;border-radius:999px;
  background:#f6f2ff;border:1px solid #e8e0fb;color:#4a3a8a;
}
.model-cloud li:nth-child(3n+1){background:#fff1f8;border-color:#fbd6e8;color:#b03277;}
.model-cloud li:nth-child(3n+2){background:#eef6ff;border-color:#d6e6ff;color:#1d5cb5;}
.model-cloud li:nth-child(3n){background:#eefaf4;border-color:#d3f0e2;color:#0f7a5a;}
.hero-panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed #e8e2f9;
  font-size:13.5px;color:#5c5876;
}

/* ---------- 数据指标 ---------- */
.metrics{padding:38px 0 6px;}
.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;}
.metric{
  background:#fff;border:1px solid #ece8f8;border-radius:16px;
  padding:18px 20px;box-shadow:0 10px 26px rgba(80,60,160,.07);
  display:flex;flex-direction:column;gap:2px;
  transition:transform .24s ease,box-shadow .24s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(80,60,160,.13);}
.metric strong{font-size:26px;line-height:1.2;color:#6d28d9;}
.metric span{font-size:13.5px;color:#63607b;}
.metric:nth-child(1) strong{color:#7c3aed;}
.metric:nth-child(2) strong{color:#2563eb;}
.metric:nth-child(3) strong{color:#ec4899;}
.metric:nth-child(4) strong{color:#0f9d76;}

/* ---------- 通用分区 ---------- */
.section{padding:62px 0;}
.section-head{max-width:780px;margin:0 auto 36px;text-align:center;}
.kicker{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:#6d28d9;background:#f4eeff;border:1px solid #e7ddfb;
  padding:5px 14px;border-radius:999px;
}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:linear-gradient(120deg,#ec4899,#7c3aed);}
.section-head h2{font-size:clamp(23px,3.1vw,33px);margin:14px 0 10px;}
.section-head p{color:#5c5876;font-size:15.5px;}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:38px;align-items:start;}
.about-copy h2{font-size:clamp(23px,3vw,31px);margin:14px 0 16px;}
.about-copy p{color:#514d6b;font-size:15.5px;margin-bottom:14px;}
.about-copy .btn{margin-top:8px;}
.about-list{display:grid;gap:12px;}
.about-list li{
  display:flex;align-items:flex-start;gap:12px;
  background:#fff;border:1px solid #ece8f8;border-radius:14px;
  padding:14px 16px;box-shadow:0 8px 20px rgba(80,60,160,.06);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.about-list li:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(80,60,160,.12);border-color:#ddd2f8;}
.about-list h3{font-size:15.5px;margin-bottom:3px;}
.about-list p{font-size:13.5px;color:#63607b;line-height:1.62;}
.tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:4px;position:relative;
  background:linear-gradient(135deg,#7c3aed,#ec4899);
}
.tick::after{
  content:"";position:absolute;left:7px;top:5px;width:8px;height:4px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);
}
.about-list li:nth-child(2) .tick{background:linear-gradient(135deg,#2563eb,#0ea5e9);}
.about-list li:nth-child(3) .tick{background:linear-gradient(135deg,#0ea5e9,#10b981);}
.about-list li:nth-child(4) .tick{background:linear-gradient(135deg,#f59e0b,#ec4899);}
.about-list li:nth-child(5) .tick{background:linear-gradient(135deg,#10b981,#0ea5e9);}
.about-list li:nth-child(6) .tick{background:linear-gradient(135deg,#ec4899,#7c3aed);}
.about-list li:nth-child(7) .tick{background:linear-gradient(135deg,#7c3aed,#2563eb);}

/* ---------- 服务卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:18px;}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px;}
.svc{
  background:#fff;border:1px solid #ece8f8;border-radius:18px;padding:22px;
  box-shadow:0 8px 22px rgba(74,58,150,.06);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  position:relative;overflow:hidden;
}
.svc::before{
  content:"";display:block;width:36px;height:6px;border-radius:999px;margin-bottom:14px;
  background:linear-gradient(90deg,#7c3aed,#2563eb);
}
.svc:nth-child(4n+2)::before{background:linear-gradient(90deg,#2563eb,#0ea5e9);}
.svc:nth-child(4n+3)::before{background:linear-gradient(90deg,#ec4899,#f59e0b);}
.svc:nth-child(4n)::before{background:linear-gradient(90deg,#10b981,#0ea5e9);}
.svc:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(74,58,150,.13);border-color:#ddd2f8;}
.svc h3{font-size:17px;margin-bottom:8px;}
.svc p{font-size:14px;color:#5c5876;line-height:1.7;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag-cloud li{
  font-size:13px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid #eae4f9;color:#4d4770;
  transition:transform .2s ease,border-color .2s ease,color .2s ease;
}
.tag-cloud li:hover{transform:translateY(-2px);border-color:#cbb8f7;color:#6d28d9;}

/* ---------- 一站式制作 ---------- */
.media-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:18px;align-items:start;}
.shot{
  background:#fff;border:1px solid #ece8f8;border-radius:16px;padding:12px;
  box-shadow:0 10px 24px rgba(80,60,160,.07);
  transition:transform .24s ease,box-shadow .24s ease;
}
.shot:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(80,60,160,.13);}
.shot img{width:100%;height:auto;border-radius:12px;}
.shot figcaption{font-size:13.5px;color:#5c5876;margin-top:10px;line-height:1.62;}
.studio-note{
  margin-top:26px;background:linear-gradient(120deg,#f6f1ff,#eef7ff 60%,#fff2f9);
  border:1px solid #e8e1fb;border-radius:18px;padding:20px 24px;
  font-size:14.5px;color:#4a4666;
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;}
.steps li{
  background:#fff;border:1px solid #ece8f8;border-radius:16px;padding:20px;
  box-shadow:0 8px 22px rgba(74,58,150,.06);
  transition:transform .24s ease,box-shadow .24s ease;
}
.steps li:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(74,58,150,.12);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;font-size:13px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#7c3aed,#2563eb);margin-bottom:12px;
}
.steps li:nth-child(2) .step-num{background:linear-gradient(135deg,#2563eb,#0ea5e9);}
.steps li:nth-child(3) .step-num{background:linear-gradient(135deg,#0ea5e9,#10b981);}
.steps li:nth-child(4) .step-num{background:linear-gradient(135deg,#ec4899,#f59e0b);}
.steps h3{font-size:16px;margin-bottom:6px;}
.steps p{font-size:13.5px;color:#5c5876;}

/* ---------- 服务网络 ---------- */
.net-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:16px;}
.net-item{
  background:#fff;border:1px solid #ece8f8;border-left:4px solid #7c3aed;border-radius:14px;
  padding:18px 20px;box-shadow:0 8px 20px rgba(74,58,150,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.net-item:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(74,58,150,.12);}
.net-item:nth-child(2){border-left-color:#2563eb;}
.net-item:nth-child(3){border-left-color:#10b981;}
.net-item:nth-child(4){border-left-color:#ec4899;}
.net-item h3{font-size:15.5px;margin-bottom:5px;}
.net-item p{font-size:13.5px;color:#5c5876;}

/* ---------- 案例 ---------- */
.case-card{
  background:#fff;border:1px solid #ece8f8;border-radius:18px;overflow:hidden;
  box-shadow:0 10px 24px rgba(74,58,150,.07);
  transition:transform .24s ease,box-shadow .24s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(74,58,150,.14);}
.case-media{background:#f7f4ff;padding:10px;}
.case-media img{width:100%;height:auto;border-radius:12px;}
.case-body{padding:16px 20px 20px;}
.case-body h3{font-size:16px;margin-bottom:6px;}
.case-body p{font-size:13.5px;color:#5c5876;}

/* ---------- 对比评测 ---------- */
.score-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;
  background:linear-gradient(120deg,#f7f2ff,#eef6ff 58%,#fff2f9);
  border:1px solid #e8e1fb;border-radius:20px;padding:22px 26px;margin-bottom:22px;
}
.score-main{display:flex;align-items:baseline;gap:6px;}
.score-value{font-size:44px;font-weight:800;line-height:1;color:#6d28d9;letter-spacing:-1px;}
.score-unit{font-size:15px;font-weight:700;color:#5c5876;}
.score-meta{display:flex;flex-direction:column;gap:2px;}
.stars{color:#f59e0b;font-size:18px;letter-spacing:3px;line-height:1.2;}
.score-meta p:last-child{font-size:13.5px;color:#4a4666;}
.score-desc{flex:1 1 260px;font-size:14px;color:#4a4666;min-width:220px;}
.table-wrap{
  overflow-x:auto;border:1px solid #ece8f8;border-radius:16px;
  background:#fff;box-shadow:0 10px 24px rgba(74,58,150,.06);
}
.data-table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;}
.data-table th,.data-table td{
  padding:14px 18px;text-align:left;vertical-align:top;
  border-bottom:1px solid #f2eefb;
}
.data-table thead th{background:#f7f3ff;color:#3d2a80;font-weight:800;white-space:nowrap;}
.data-table tbody tr:hover{background:#fbf9ff;}
.data-table tbody tr:last-child td{border-bottom:none;}
.data-table td:first-child{font-weight:700;color:#2f2b4a;white-space:nowrap;}
.data-table .us{color:#6d28d9;font-weight:700;}
.table-note{font-size:13px;color:#6b6781;margin-top:12px;}

/* ---------- 评论 ---------- */
.review{
  background:#fff;border:1px solid #ece8f8;border-radius:18px;padding:22px;
  box-shadow:0 8px 22px rgba(74,58,150,.06);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .24s ease,box-shadow .24s ease;
}
.review:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(74,58,150,.12);}
.review .quote{font-size:14.5px;color:#4a4666;line-height:1.78;}
.review .who{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;border-top:1px dashed #ece7f9;}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#7c3aed,#2563eb);
}
.review:nth-child(2) .avatar{background:linear-gradient(135deg,#ec4899,#f59e0b);}
.review:nth-child(3) .avatar{background:linear-gradient(135deg,#0ea5e9,#10b981);}
.review:nth-child(4) .avatar{background:linear-gradient(135deg,#2563eb,#7c3aed);}
.review:nth-child(5) .avatar{background:linear-gradient(135deg,#10b981,#0ea5e9);}
.review:nth-child(6) .avatar{background:linear-gradient(135deg,#f59e0b,#ec4899);}
.who-name{font-size:13.5px;font-weight:700;color:#2f2b4a;}
.who-role{font-size:12.5px;color:#6b6781;}

/* ---------- 加盟代理 ---------- */
.partner-wrap{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:28px;align-items:start;
}
.partner-list{display:grid;gap:14px;}
.partner-list li{
  background:#fff;border:1px solid #ece8f8;border-radius:14px;padding:16px 18px;
  box-shadow:0 8px 20px rgba(74,58,150,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.partner-list li:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(74,58,150,.12);}
.partner-list h3{font-size:15.5px;margin-bottom:4px;}
.partner-list p{font-size:13.5px;color:#5c5876;}
.partner-cta{
  background:linear-gradient(140deg,#f7f0ff,#eef7ff 60%,#fff1f8);
  border:1px solid #e8e1fb;border-radius:20px;padding:26px;
}
.partner-cta h3{font-size:19px;margin-bottom:10px;}
.partner-cta p{font-size:14px;color:#4a4666;margin-bottom:16px;}

/* ---------- 帮助与资讯 ---------- */
.help-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start;}
.news-list{display:grid;gap:10px;}
.news-list a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid #ece8f8;border-radius:13px;
  padding:14px 18px;text-decoration:none;font-size:14.5px;color:#2f2b4a;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-list a::after{content:"→";color:#7c3aed;font-weight:700;flex:0 0 auto;}
.news-list a:hover{transform:translateX(4px);border-color:#d5c7f8;box-shadow:0 10px 22px rgba(74,58,150,.1);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid #ece8f8;border-radius:14px;
  box-shadow:0 6px 18px rgba(74,58,150,.05);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:#d8caf8;box-shadow:0 12px 26px rgba(74,58,150,.11);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 52px 16px 20px;position:relative;
  font-size:15.5px;font-weight:700;color:#241f3f;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:22px;width:9px;height:9px;
  border-right:2px solid #7c3aed;border-bottom:2px solid #7c3aed;
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-answer{padding:0 20px 18px;font-size:14.5px;color:#5c5876;line-height:1.8;}

/* ---------- 联系表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:28px;align-items:start;}
.contact-form{
  background:#fff;border:1px solid #ece8f8;border-radius:20px;padding:26px;
  box-shadow:0 12px 30px rgba(74,58,150,.08);
}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600;color:#3d3a58;}
.field.full{grid-column:1/-1;}
.contact-form input,.contact-form select,.contact-form textarea{
  font:inherit;font-weight:400;padding:11px 14px;border-radius:11px;
  border:1px solid #e3ddf6;background:#fbfaff;color:#1a1830;
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.contact-form textarea{min-height:118px;resize:vertical;}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  border-color:#a78bfa;background:#fff;box-shadow:0 0 0 3px rgba(167,139,250,.18);
}
.form-actions{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-tip{font-size:12.5px;color:#7a7692;}
.contact-side{display:grid;gap:14px;}
.contact-card{
  background:#fff;border:1px solid #ece8f8;border-radius:16px;padding:20px;
  box-shadow:0 8px 20px rgba(74,58,150,.06);
}
.contact-card h3{font-size:15.5px;margin-bottom:10px;}
.contact-card ul{display:grid;gap:8px;font-size:14px;color:#4a4666;}
.contact-card a{color:#5b36b5;text-decoration:none;font-weight:600;}
.contact-card a:hover{text-decoration:underline;}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;}
.qr-box img{width:160px;height:auto;border-radius:12px;border:1px solid #eee9fb;background:#faf8ff;padding:6px;}
.qr-box span{font-size:12.5px;color:#7a7692;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(180deg,#f5f1ff 0%,#efebfd 100%);
  border-top:1px solid #e6defb;color:#3d3a58;
  padding:44px 0 22px;margin-top:10px;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.85fr) minmax(0,.85fr);gap:30px;align-items:start;}
.footer-brand .ai-page-logo{width:150px;height:auto;margin-bottom:12px;}
.footer-brand p{font-size:13.5px;color:#4d4a68;line-height:1.78;max-width:360px;}
.footer-contact{margin-top:14px;display:grid;gap:6px;font-size:13.5px;color:#4d4a68;}
.footer-contact a{color:#5b36b5;text-decoration:none;}
.footer-contact a:hover{text-decoration:underline;}
.footer-title{font-size:15px;color:#241f3f;margin-bottom:12px;}
.footer-links{display:grid;gap:8px;font-size:13.5px;}
.footer-links a{color:#4d4a68;text-decoration:none;transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:#6d28d9;transform:translateX(3px);}
.footer-bottom{
  margin-top:28px;padding-top:16px;border-top:1px solid #e0d7f7;
  font-size:13px;color:#5c5878;text-align:center;
}
.footer-bottom a{color:#5b36b5;text-decoration:none;font-weight:600;}
.footer-bottom a:hover{text-decoration:underline;}

/* ---------- 浮动工具 ---------- */
.float-tools{
  position:fixed;right:18px;bottom:22px;z-index:90;
  display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.fab{
  width:50px;height:50px;border-radius:50%;border:none;cursor:pointer;
  font-size:13px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#7c3aed,#2563eb);
  box-shadow:0 12px 26px rgba(88,60,220,.32);
  transition:transform .2s ease,box-shadow .2s ease,opacity .25s ease,visibility .25s ease;
}
.fab:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(88,60,220,.4);}
#backTop{opacity:0;visibility:hidden;}
#backTop.show{opacity:1;visibility:visible;}
.chat-panel{
  width:214px;background:#fff;border:1px solid #ece8f8;border-radius:16px;
  padding:14px;box-shadow:0 18px 40px rgba(70,50,150,.18);
  font-size:13px;color:#3d3a58;text-align:center;
}
.chat-panel h3{font-size:14px;margin-bottom:6px;}
.chat-panel img{width:100%;height:auto;border-radius:10px;margin:8px 0;border:1px solid #f0ecfb;}
.chat-panel p{font-size:12.5px;color:#5c5876;line-height:1.7;}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .nav-toggle{display:inline-flex;order:2;}
  .nav-wrap{order:3;flex-basis:100%;display:none;}
  .nav-wrap.is-open{display:block;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;padding:6px 0 10px;}
  .nav-links a{padding:11px 12px;border-radius:10px;border-top:1px solid #f3effc;}
  .nav-links li:first-child a{border-top:none;}
  .header-cta{order:4;width:100%;}
  .hero-inner{grid-template-columns:1fr;gap:28px;}
  .about-grid,.help-grid,.contact-wrap,.partner-wrap{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:1/-1;}
}
@media (max-width:720px){
  .hero{padding:46px 0 52px;}
  .section{padding:46px 0;}
  .hero-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .score-bar{padding:18px 20px;gap:16px;}
  .score-value{font-size:36px;}
  .contact-form{padding:20px;}
  .float-tools{right:12px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .hero::before,.hero::after{animation:none;}
  .svc:hover,.metric:hover,.shot:hover,.review:hover,.case-card:hover,.steps li:hover,.about-list li:hover,.net-item:hover,.partner-list li:hover{transform:none;}
}