:root{
  --blue:#1a56f0;
  --blue-light:#4a7dff;
  --blue-deep:#0b2570;
  --blue-ink:#071a52;
  --sky:#00c8ff;
  --ink:#0f1c3f;
  --muted:#5a6884;
  --line:#dde6fa;
  --bg:#f2f6ff;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:linear-gradient(180deg,#eef4ff 0%,#f8fbff 30%,#eef4ff 70%,#f5f9ff 100%);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
section[id]{scroll-margin-top:84px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  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;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink);flex-shrink:0}
.ai-page-logo{max-height:36px;max-width:100%;height:auto;width:auto;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
.nav-links a{
  display:inline-block;padding:8px 11px;font-size:14.5px;color:#25355c;
  border-radius:10px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--blue);background:#eaf1ff}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--blue-deep);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s,color .22s;
  text-align:center;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,#1a56f0,#3f7bff);color:#fff;box-shadow:0 14px 30px -14px rgba(26,86,240,.85)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 36px -14px rgba(26,86,240,.9)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-outline{background:#fff;color:var(--blue);border-color:#c6d8ff}
.btn-outline:hover{background:#eef4ff;transform:translateY(-2px)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:82px 0 96px;background:linear-gradient(140deg,#06154a 0%,#10309b 40%,#1a56f0 76%,#3a78ff 100%);color:#fff;text-align:center}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px),
    radial-gradient(circle at 80% 12%,rgba(0,200,255,.38),transparent 46%),
    radial-gradient(circle at 12% 84%,rgba(94,140,255,.45),transparent 52%);
  background-size:58px 58px,58px 58px,auto,auto;
}
.hero-inner{position:relative;z-index:2;max-width:860px;margin:0 auto}
.hero-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;font-weight:600;
  padding:7px 18px;border-radius:999px;color:#dbe8ff;
  border:1px solid rgba(255,255,255,.36);background:rgba(255,255,255,.1);
}
.hero h1{font-size:clamp(29px,4.6vw,47px);margin:22px 0 18px;font-weight:800;letter-spacing:-.02em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#8fe7ff,#ffffff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(15px,1.6vw,17.5px);color:#d5e2ff;max-width:700px;margin:0 auto 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px}
.hero-tags li{
  font-size:13.5px;padding:7px 16px;border-radius:999px;color:#e6efff;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
}

/* 数据指标 */
.metrics{position:relative;z-index:5;margin-top:-46px;padding-bottom:0}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px 22px;
  box-shadow:0 28px 56px -34px rgba(16,46,120,.6);
}
.metric{text-align:center}
.metric strong{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--blue);letter-spacing:-.02em}
.metric span{font-size:13.5px;color:var(--muted)}

/* 通用区块 */
.section{padding:74px 0}
.section-head{max-width:760px;margin:0 auto 42px;text-align:center}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;font-weight:700;
  color:var(--blue);background:#e7efff;padding:6px 15px;border-radius:999px;
}
.section-head h2{font-size:clamp(23px,3.2vw,33px);margin:16px 0 12px;font-weight:800}
.section-head p{color:var(--muted);font-size:15.5px}

/* 卡片与网格 */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:0 12px 34px -22px rgba(16,46,120,.42);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 26px 48px -26px rgba(16,46,120,.5);border-color:#bccffb}
.card h3{font-size:17.5px;margin-bottom:10px;font-weight:700}
.card p{font-size:14.5px;color:var(--muted)}

/* 关于我们 */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;margin-bottom:26px}
.about-copy h3{font-size:21px;margin-bottom:14px}
.about-copy p{color:var(--muted);font-size:15px;margin-bottom:16px}
.check-list{display:grid;gap:11px}
.check-list li{position:relative;padding-left:28px;font-size:14.8px;color:#22335c}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:0;width:19px;height:19px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
  color:#fff;background:linear-gradient(135deg,#1a56f0,#3f9dff);margin-top:5px;
}
.about-media{border-radius:20px;overflow:hidden;border:1px solid var(--line);background:#fff;padding:10px;box-shadow:0 22px 46px -30px rgba(16,46,120,.55)}
.ai-page-image{width:100%;max-width:100%;height:auto;display:block;border-radius:14px}

/* 服务卡片 */
.svc-card::before{
  content:"";display:block;width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  background:linear-gradient(135deg,#1a56f0,#5ea8ff);
  box-shadow:0 10px 20px -12px rgba(26,86,240,.9);
}
.svc-note{
  display:inline-block;margin-top:14px;font-size:12.5px;color:var(--blue);
  background:#eaf1ff;padding:4px 11px;border-radius:999px;font-weight:600;
}

/* 标签云 */
.cloud-box{
  margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:0 12px 34px -24px rgba(16,46,120,.42);
}
.cloud-box h3{font-size:16.5px;margin-bottom:16px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud li{
  font-size:13.5px;padding:6px 14px;border-radius:9px;color:#22335c;
  background:#f1f6ff;border:1px solid #dce7fd;transition:.22s;
}
.tag-cloud li:hover{background:#e2ecff;color:var(--blue);border-color:#b7ceff;transform:translateY(-2px)}

/* 一站式制作 */
.media-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:32px}
.media-pair figure{margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;padding:10px;box-shadow:0 18px 40px -30px rgba(16,46,120,.55)}
.media-pair figcaption{font-size:13.5px;color:var(--muted);padding:12px 6px 4px;text-align:center}
.onestop-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.mini-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:.28s}
.mini-item:hover{transform:translateY(-3px);border-color:#bccffb;box-shadow:0 18px 36px -26px rgba(16,46,120,.5)}
.mini-item h4{font-size:15.5px;margin-bottom:8px}
.mini-item p{font-size:14px;color:var(--muted)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.step:hover{transform:translateY(-4px);border-color:#b7ceff;box-shadow:0 22px 40px -28px rgba(16,46,120,.55)}
.step-num{font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--blue);margin-bottom:10px;display:block}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}

/* 表格 */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;
  box-shadow:0 16px 40px -30px rgba(16,46,120,.5);
}
table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px}
thead th{background:#eef4ff;color:var(--blue-deep);font-weight:700;text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody td{padding:15px 18px;border-bottom:1px solid var(--line);color:#28395f;vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody th{text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);font-weight:600;color:var(--ink);white-space:nowrap;background:#fbfdff}
.hl{background:#f4f8ff;color:var(--blue-deep);font-weight:600}
.yes{color:#0f8a52;font-weight:700}
.no{color:#96a2bb}

/* 评分 */
.score-board{
  margin-top:24px;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;
  background:linear-gradient(120deg,#0b2570,#1a56f0 72%,#3f7bff);
  border-radius:20px;padding:30px;color:#fff;
  box-shadow:0 26px 52px -32px rgba(16,46,120,.85);
}
.score-main{text-align:center;padding-right:28px;border-right:1px solid rgba(255,255,255,.28)}
.stars{display:block;font-size:19px;letter-spacing:3px;color:#ffd75e;margin-bottom:8px}
.score-num{font-size:44px;font-weight:800;line-height:1}
.score-num span{font-size:17px;font-weight:500;color:#c8daff;margin-left:4px}
.score-main p{font-size:13.5px;color:#cfddff;margin-top:8px}
.score-text h3{font-size:18px;margin-bottom:10px}
.score-text p{font-size:14.5px;color:#d6e3ff}

/* 评论 */
.review-card{display:flex;flex-direction:column;gap:12px}
.review-role{
  display:inline-flex;align-self:flex-start;font-size:12.5px;font-weight:700;color:var(--blue);
  background:#eaf1ff;padding:4px 12px;border-radius:999px;
}
.review-card p{font-size:14.5px;color:#334468}
.review-quote{font-size:15px;color:var(--ink);line-height:1.8}

/* 知识卡 */
.know-item{display:flex;gap:14px;align-items:flex-start}
.know-dot{
  flex-shrink:0;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,#1a56f0,#5ea8ff);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:800;
}
.know-item h3{font-size:15.5px;margin-bottom:6px}
.know-item p{font-size:14px;color:var(--muted)}

/* 资讯 */
.news-list{display:grid;gap:14px}
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;
  transition:.26s;
}
.news-item:hover{transform:translateX(4px);border-color:#b7ceff;box-shadow:0 16px 34px -26px rgba(16,46,120,.55)}
.news-item strong{font-size:15.5px;font-weight:600;display:block}
.news-item small{font-size:13px;color:var(--muted)}
.news-arrow{color:var(--blue);font-weight:700;flex-shrink:0}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item[open]{border-color:#b7ceff;box-shadow:0 18px 40px -30px rgba(16,46,120,.6)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:17px 54px 17px 22px;font-weight:600;font-size:15.2px;
  position:relative;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--blue);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item .faq-answer{padding:0 22px 18px;font-size:14.5px;color:var(--muted)}

/* 加盟 */
.agent-box{
  background:linear-gradient(120deg,#0b2570,#1a56f0 68%,#3f9dff);
  border-radius:22px;padding:38px 34px;color:#fff;display:flex;gap:28px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  box-shadow:0 28px 56px -34px rgba(16,46,120,.85);
}
.agent-box h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:10px}
.agent-box p{font-size:14.8px;color:#d6e3ff;max-width:640px}

/* 表单与联系 */
.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 20px 46px -32px rgba(16,46,120,.55)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card>p{font-size:14px;color:var(--muted);margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;font-size:13.5px;color:#334468;font-weight:600}
.field.full{grid-column:1 / -1}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid #d7e2f8;border-radius:11px;
  font-size:14.5px;color:var(--ink);background:#fbfdff;font-family:inherit;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(26,86,240,.13);
}
.field textarea{resize:vertical;min-height:104px}
.btn-submit{margin-top:20px;width:100%}
.form-note{font-size:12.5px;color:#8a97b1;margin-top:12px;text-align:center}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 20px 46px -32px rgba(16,46,120,.55)}
.contact-card h3{font-size:17px;margin-bottom:16px}
.contact-list{display:grid;gap:12px;margin-bottom:20px}
.contact-list li{display:flex;gap:10px;font-size:14.2px;color:#28395f;align-items:baseline}
.contact-list li span{flex-shrink:0;width:74px;color:var(--muted);font-size:13px}
.contact-list li a{color:var(--blue);font-weight:600}
.qr-box{text-align:center;border-top:1px dashed var(--line);padding-top:20px}
.qr-box img{width:100%;max-width:170px;height:auto;margin:0 auto;border-radius:12px;border:1px solid var(--line)}
.qr-box p{font-size:13px;color:var(--muted);margin-top:10px}

/* 页脚 */
.site-footer{background:#071a52;color:#c8d8f7;padding:44px 0 0;margin-top:12px}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr;gap:34px;padding-bottom:30px}
.footer-name{font-size:19px;font-weight:800;color:#fff;margin-bottom:10px}
.footer-desc{font-size:14px;color:#a9bfe8;max-width:520px;margin-bottom:14px}
.footer-site{display:inline-block;font-size:14px;color:#8fd8ff;font-weight:600}
.footer-site:hover{color:#fff}
.footer-links h3{font-size:14.5px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-links ul{display:flex;flex-wrap:wrap;gap:10px 18px}
.footer-links a{font-size:13.8px;color:#a9bfe8;transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:16px 0 20px;
  font-size:13px;color:#8ea6d4;text-align:center;
}

/* 浮动客服 */
.kf{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.back-top{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);
  color:var(--blue);font-size:18px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;
  box-shadow:0 10px 24px -14px rgba(16,46,120,.6);
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}
.kf-btn{
  width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,#1a56f0,#00c8ff);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 16px 32px -14px rgba(26,86,240,.9);
  transition:transform .25s;
}
.kf-btn:hover{transform:translateY(-3px)}
.kf-panel{
  width:236px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px;box-shadow:0 26px 52px -26px rgba(16,46,120,.6);display:none;text-align:center;
}
.kf-panel.open{display:block;animation:pop .24s ease}
.kf-panel h4{font-size:14px;color:var(--ink);margin-bottom:10px}
.kf-panel img{width:100%;max-width:150px;height:auto;margin:0 auto 10px;border-radius:10px;border:1px solid var(--line)}
.kf-panel p{font-size:12.5px;color:var(--muted);line-height:1.7}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;position:absolute;left:-20px;right:-20px;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px 20px 16px;box-shadow:0 22px 36px -26px rgba(16,46,120,.6);
  }
  .nav-links.open{display:flex}
  .nav-links a{display:block;padding:12px 4px;border-radius:0;border-bottom:1px solid #eef3fd}
  .nav-links li:last-child a{border-bottom:none}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .onestop-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .score-board{grid-template-columns:1fr;gap:20px}
  .score-main{border-right:none;border-bottom:1px solid rgba(255,255,255,.28);padding:0 0 20px}
}
@media (max-width:760px){
  .section{padding:56px 0}
  .hero{padding:64px 0 84px}
  .metrics{margin-top:-36px}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px;padding:24px 16px;border-radius:18px}
  .grid-3,.grid-2,.steps,.onestop-list,.media-pair,.form-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .agent-box{padding:28px 22px}
  .form-card,.contact-card{padding:22px}
  .news-item{padding:16px 18px}
  .brand-text small{display:none}
  .nav-actions .btn{display:none}
}