*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:#0b1730;
  background:#f4f9ff;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(760px 460px at 6% -6%,rgba(0,207,174,.20),transparent 62%),
    radial-gradient(900px 520px at 98% 0%,rgba(22,82,240,.18),transparent 60%),
    radial-gradient(720px 520px at 82% 46%,rgba(120,180,255,.16),transparent 66%),
    radial-gradient(680px 480px at 4% 78%,rgba(255,159,26,.12),transparent 66%),
    linear-gradient(180deg,#ffffff 0%,#f4f9ff 44%,#eef5ff 100%);
}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;color:#0b1730;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
section[id],div[id]{scroll-margin-top:88px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(219,232,255,.9);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand .ai-page-logo{max-height:38px;width:auto;}
.brand-name{font-size:18px;font-weight:900;letter-spacing:1px;color:#0b1730;white-space:nowrap;}
.nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-links{display:flex;gap:0;align-items:center;flex-wrap:nowrap;margin:0;padding:0;list-style:none;}
.nav-links a{
  display:block;padding:8px 11px;font-size:14px;font-weight:600;color:#33425f;
  border-radius:10px;white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#0b3ac0;background:#eef4ff;}
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid #d7e4fb;
  background:#fff;color:#1652f0;cursor:pointer;transition:background .2s ease;
}
.nav-toggle:hover{background:#eef4ff;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:14px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,#1652f0,#0a8cf0);color:#fff;box-shadow:0 10px 24px rgba(22,82,240,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(22,82,240,.36);}
.btn-outline{background:#fff;color:#0b3ac0;border-color:#c9dbff;}
.btn-outline:hover{background:#f2f7ff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(22,82,240,.14);}
.btn-ghost{background:#eef4ff;color:#0b3ac0;border-color:#dbe8ff;}
.btn-ghost:hover{background:#e2ecff;}

/* 通用区块 */
.section{padding:66px 0;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:#0b7a68;background:rgba(0,207,174,.12);border:1px solid rgba(0,207,174,.3);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head{text-align:center;max-width:800px;margin:0 auto 40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;letter-spacing:.5px;}
.section-head p{color:#54658a;font-size:16px;}

.grid-2,.grid-3,.grid-4{display:grid;gap:20px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{
  background:#fff;border:1px solid #e2ebfb;border-radius:18px;padding:22px;
  box-shadow:0 6px 18px rgba(16,44,110,.06);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(16,44,110,.12);border-color:#c9dbff;}
.card h3{font-size:17px;margin-bottom:8px;}
.card p{font-size:14.5px;color:#54658a;line-height:1.72;}

/* 首屏 */
.hero{padding:52px 0 34px;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center;}
.hero h1{font-size:clamp(29px,4.2vw,48px);line-height:1.24;letter-spacing:.5px;margin-bottom:18px;font-weight:900;}
.hero h1 .accent{color:#1652f0;}
.hero .lead{font-size:17px;color:#43536f;margin-bottom:26px;max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 20px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#3d4d6b;font-weight:600;}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,#1652f0,#00cfae);
}
.hero-panel{
  position:relative;border-radius:26px;padding:26px;
  background:linear-gradient(165deg,#ffffff 0%,#eef5ff 100%);
  border:1px solid #dbe8ff;
  box-shadow:0 26px 60px rgba(18,54,138,.16);
  overflow:hidden;
  animation:riseIn .8s ease both;
}
.hero-panel::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(22,82,240,.2),transparent 70%);
  pointer-events:none;
}
@keyframes riseIn{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:none;}}
.score-card{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid #dbe8ff;border-radius:16px;padding:14px 16px;margin-bottom:18px;
  position:relative;z-index:1;
}
.score-stars{color:#ff9f1a;font-size:17px;letter-spacing:2px;}
.score-num{font-size:24px;font-weight:900;color:#0b1730;line-height:1;}
.score-num span{font-size:13px;color:#71809c;font-weight:700;margin-left:2px;}
.panel-title{font-size:14px;font-weight:800;color:#33425f;margin-bottom:10px;position:relative;z-index:1;}
.chips{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:1;}
.chip{
  font-size:13px;font-weight:600;padding:5px 11px;border-radius:999px;
  background:#fff;border:1px solid #d8e6ff;color:#25406e;
}
.panel-foot{
  margin-top:18px;padding-top:14px;border-top:1px dashed #d8e6ff;
  font-size:13.5px;color:#54658a;position:relative;z-index:1;
}

/* 数据指标 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px;}
.metric{
  background:#fff;border:1px solid #e2ebfb;border-radius:16px;padding:18px 20px;
  box-shadow:0 6px 18px rgba(16,44,110,.06);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(16,44,110,.12);}
.metric b{display:block;font-size:24px;font-weight:900;color:#1652f0;line-height:1.2;margin-bottom:4px;}
.metric span{font-size:14px;color:#54658a;}

/* 关于我们 */
.about-media{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px;}
.about-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;border:1px solid #e2ebfb;box-shadow:0 8px 22px rgba(16,44,110,.08);
}

/* 一站式制作 */
.line-card{position:relative;overflow:hidden;}
.line-card::before{
  content:"";position:absolute;left:0;top:0;height:100%;width:4px;
  background:linear-gradient(180deg,#1652f0,#00cfae);
}
.line-card h3{padding-left:6px;}
.line-card p{padding-left:6px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;justify-content:center;}
.tag{
  font-size:13.5px;font-weight:700;color:#0b3ac0;background:#eef4ff;
  border:1px solid #d7e4fb;border-radius:999px;padding:6px 14px;
}

/* 标准流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{
  background:#fff;border:1px solid #e2ebfb;border-radius:16px;padding:20px;
  box-shadow:0 6px 18px rgba(16,44,110,.06);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(16,44,110,.12);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;margin-bottom:12px;
  background:linear-gradient(135deg,#1652f0,#00cfae);color:#fff;font-size:14px;font-weight:900;
}
.step h3{font-size:15.5px;margin-bottom:6px;}
.step p{font-size:13.5px;color:#54658a;line-height:1.65;}

/* 案例 */
.case-card{padding:0;overflow:hidden;}
.case-thumb{aspect-ratio:4/3;overflow:hidden;background:#eef5ff;}
.case-thumb img{width:100%;height:100%;object-fit:cover;}
.case-body{padding:20px;}
.case-body h3{font-size:17px;margin-bottom:8px;}
.case-body p{font-size:14.5px;color:#54658a;}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.case-tags span{font-size:12.5px;font-weight:700;color:#0b7a68;background:rgba(0,207,174,.12);border-radius:999px;padding:4px 11px;}

/* 对比评测 */
.compare-head{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  margin-bottom:28px;flex-wrap:wrap;
}
.compare-head h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:12px;}
.compare-head p{color:#54658a;max-width:620px;}
.rating-box{
  background:linear-gradient(150deg,#ffffff,#eef5ff);
  border:1px solid #dbe8ff;border-radius:20px;padding:18px 24px;text-align:center;
  box-shadow:0 14px 34px rgba(18,54,138,.12);min-width:210px;
}
.rating-box .stars{color:#ff9f1a;font-size:20px;letter-spacing:3px;}
.rating-box .num{font-size:34px;font-weight:900;color:#0b1730;line-height:1.2;}
.rating-box .num span{font-size:15px;color:#71809c;font-weight:700;}
.rating-box .label{font-size:13.5px;color:#0b7a68;font-weight:700;}

.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border:1px solid #e2ebfb;border-radius:18px;
  box-shadow:0 8px 24px rgba(16,44,110,.08);
}
table{border-collapse:collapse;width:100%;min-width:780px;font-size:14.5px;}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #eef3fd;vertical-align:top;}
thead th{background:#f4f8ff;font-weight:800;color:#0b1730;font-size:14.5px;}
thead th:last-child{background:#e8f2ff;color:#0b3ac0;}
tbody th{font-weight:700;color:#33425f;background:#fbfdff;width:168px;}
tbody td{color:#54658a;}
tbody td:last-child{background:#f4fbf9;color:#0f3f37;font-weight:600;}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:none;}

/* 表单 */
.match-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:36px;align-items:start;}
.match-info h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:14px;}
.match-info p{color:#54658a;margin-bottom:20px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#33425f;font-weight:600;}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;border-radius:50%;margin-top:3px;
  background:linear-gradient(135deg,#1652f0,#00cfae);
  box-shadow:0 4px 10px rgba(22,82,240,.25);
}
.match-form{
  background:#fff;border:1px solid #e2ebfb;border-radius:20px;padding:24px;
  box-shadow:0 14px 34px rgba(16,44,110,.1);display:grid;gap:14px;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:14px;font-weight:700;color:#33425f;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid #d7e4fb;border-radius:12px;
  font-size:15px;font-family:inherit;color:#0b1730;background:#fbfdff;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#1652f0;background:#fff;box-shadow:0 0 0 4px rgba(22,82,240,.12);
}
.field textarea{min-height:110px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-note{font-size:12.5px;color:#7a89a6;text-align:center;}
.match-form .btn{width:100%;}

/* 用户评论 */
.review{
  background:#fff;border:1px solid #e2ebfb;border-radius:18px;padding:22px;margin:0;
  box-shadow:0 6px 18px rgba(16,44,110,.06);
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.review:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(16,44,110,.12);}
.review blockquote{margin:0;font-size:14.8px;color:#33425f;line-height:1.8;}
.review figcaption{display:flex;flex-direction:column;gap:2px;border-top:1px dashed #e2ebfb;padding-top:12px;}
.review figcaption strong{font-size:15px;color:#0b1730;}
.review figcaption span{font-size:13px;color:#71809c;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:940px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid #e2ebfb;border-radius:16px;
  box-shadow:0 4px 14px rgba(16,44,110,.05);overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item[open]{border-color:#c9dbff;box-shadow:0 14px 34px rgba(16,44,110,.1);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 20px;cursor:pointer;font-weight:700;font-size:15.5px;color:#0b1730;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:700;color:#1652f0;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-body{padding:0 20px 18px;font-size:14.5px;color:#54658a;line-height:1.78;}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:start;}
.contact-card{background:#fff;border:1px solid #e2ebfb;border-radius:20px;padding:26px;box-shadow:0 8px 24px rgba(16,44,110,.08);}
.contact-card h3{font-size:18px;margin-bottom:16px;}
.contact-list{display:grid;gap:12px;}
.contact-list li{display:flex;flex-wrap:wrap;gap:8px;font-size:15px;color:#33425f;}
.contact-list li b{color:#0b1730;font-weight:700;min-width:88px;}
.contact-list a{color:#0b3ac0;font-weight:700;}
.contact-list a:hover{text-decoration:underline;}
.qr-card{
  background:#fff;border:1px solid #e2ebfb;border-radius:20px;padding:20px;text-align:center;
  box-shadow:0 8px 24px rgba(16,44,110,.08);
}
.qr-card img{width:100%;max-width:220px;margin:0 auto 12px;border-radius:12px;}
.qr-card p{font-size:14px;color:#54658a;font-weight:600;}

/* 加盟 */
.join-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;}
.join-grid h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:14px;}
.join-grid p{color:#54658a;margin-bottom:18px;}
.join-card{
  background:linear-gradient(150deg,#ffffff,#eef5ff);
  border:1px solid #dbe8ff;border-radius:22px;padding:26px;
  box-shadow:0 20px 48px rgba(16,44,110,.14);
}
.join-card h3{font-size:17px;margin-bottom:14px;}
.join-card ul{display:grid;gap:10px;margin-bottom:20px;}
.join-card li{font-size:14.5px;color:#33425f;font-weight:600;display:flex;gap:8px;align-items:flex-start;}
.join-card li::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;margin-top:9px;background:linear-gradient(135deg,#1652f0,#00cfae);}

/* 友情链接 */
.friend-links{background:#f2f7ff;border-top:1px solid #dfe9fb;border-bottom:1px solid #dfe9fb;padding:20px 0;}
.friend-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;}
.friend-inner .friend-label{font-size:14px;font-weight:800;color:#0b1730;}
.friend-inner a{font-size:14px;color:#0b3ac0;transition:color .2s ease;}
.friend-inner a:hover{color:#1652f0;text-decoration:underline;}

/* 页脚 */
.site-footer{background:#f2f7ff;color:#33425f;padding:44px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;padding-bottom:30px;}
.footer-brand .ai-page-logo{max-height:38px;width:auto;margin-bottom:12px;}
.footer-brand p{font-size:14px;color:#54658a;max-width:360px;}
.footer-col h4{font-size:15px;margin-bottom:12px;color:#0b1730;}
.footer-col ul{display:grid;gap:8px;}
.footer-col a,.footer-col span{font-size:14px;color:#4a5b7c;}
.footer-col a:hover{color:#1652f0;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid #dfe9fb;padding:16px 0 22px;
}
.footer-bottom-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;}
.footer-bottom-inner p{font-size:13.5px;color:#5c6b88;}
.footer-bottom-inner a{color:#0b3ac0;font-weight:700;}
.footer-bottom-inner a:hover{text-decoration:underline;}

/* 浮动工具 */
.float-tools{position:fixed;right:16px;bottom:18px;z-index:200;display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
.float-btn{
  width:50px;height:50px;border-radius:16px;border:1px solid #d7e4fb;background:#fff;
  color:#1652f0;font-size:13px;font-weight:800;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(16,44,110,.18);
  transition:transform .2s ease,background .2s ease,opacity .2s ease;
}
.float-btn:hover{transform:translateY(-3px);background:#eef4ff;}
#topBtn{opacity:0;visibility:hidden;transition:opacity .25s ease,transform .2s ease,visibility .25s ease;}
#topBtn.show{opacity:1;visibility:visible;font-size:18px;}
.float-service{position:relative;}
.service-panel{
  position:absolute;right:0;bottom:60px;width:230px;
  background:#fff;border:1px solid #dbe8ff;border-radius:16px;padding:16px;
  box-shadow:0 20px 48px rgba(16,44,110,.18);
  display:none;text-align:center;
}
.service-panel.open{display:block;}
.service-panel img{width:100%;max-width:180px;margin:0 auto 10px;border-radius:10px;}
.service-panel p{font-size:13px;color:#3d4d6b;line-height:1.7;}

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

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
  .hero-panel{animation:none;}
  .card:hover,.metric:hover,.step:hover,.review:hover,.btn:hover,.float-btn:hover{transform:none;}
}

/* 响应式 */
@media (max-width:1120px){
  .nav{display:none;}
  .nav.open{
    display:block;position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid #dfe9fb;
    box-shadow:0 18px 40px rgba(16,44,110,.12);
  }
  .nav-links{flex-direction:column;align-items:stretch;padding:10px 20px 18px;gap:0;}
  .nav-links a{padding:13px 6px;font-size:15px;border-bottom:1px solid #eef4ff;border-radius:0;}
  .nav-links li:last-child a{border-bottom:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero .lead{max-width:none;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .about-media{grid-template-columns:1fr 1fr;}
  .match-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .join-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:680px){
  .section{padding:52px 0;}
  .hero{padding:38px 0 24px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .about-media{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-head{gap:18px;}
  .rating-box{width:100%;}
  .friend-inner{gap:8px 14px;}
}