:root{
  --ink:#0b1738;
  --ink-soft:#22304f;
  --muted:#5a6784;
  --blue:#1c47e0;
  --blue-mid:#2f6bff;
  --cyan:#39d3ff;
  --line:#e1e9f8;
  --surface:#ffffff;
  --radius:18px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:#eef3ff;
  background-image:
    radial-gradient(900px 520px at 8% -6%,rgba(47,107,255,.20),transparent 62%),
    radial-gradient(800px 480px at 96% 3%,rgba(57,211,255,.18),transparent 58%),
    radial-gradient(900px 620px at 50% 108%,rgba(47,107,255,.12),transparent 65%);
  background-repeat:no-repeat;
}
img{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.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}
section[id]{scroll-margin-top:90px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.93);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(225,233,248,.9);
}
.header-inner{display:flex;align-items:center;gap:14px;min-height:70px;padding-top:10px;padding-bottom:10px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-logo{display:inline-flex;align-items:center;flex:0 0 auto}
.brand-logo img{max-height:38px;width:auto;display:block}
.brand-text{font-size:17px;font-weight:800;color:#0b1738;white-space:nowrap}
.main-nav{flex:1 1 auto;display:flex;justify-content:flex-end}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links a{
  display:inline-block;padding:9px 11px;font-size:14.5px;font-weight:600;color:#22304f;
  border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#1c47e0;background:rgba(47,107,255,.10)}
.header-actions{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  padding:0;transition:border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#1c47e0;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle:hover{border-color:#2f6bff}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open 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;text-align:center;
  transition:transform .22s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2f6bff,#1c47e0);
  color:#ffffff;
  box-shadow:0 16px 32px -16px rgba(28,71,224,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -16px rgba(28,71,224,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.55);color:#ffffff}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* 首屏 */
.hero{
  position:relative;overflow:hidden;padding:78px 0 72px;color:#ffffff;
  background:linear-gradient(135deg,#081a45 0%,#12307d 48%,#1f4be6 100%);
}
.hero::before{
  content:"";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);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 74%);
}
.hero::after{
  content:"";position:absolute;right:-150px;top:-140px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,211,255,.42),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:880px;margin:0 auto;text-align:center}
.hero .eyebrow{
  color:#c8e8ff;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.30);
}
.hero h1{font-size:clamp(30px,5vw,50px);margin:22px 0 18px;color:#ffffff;line-height:1.22}
.hero-lead{font-size:clamp(15px,1.6vw,17px);color:rgba(255,255,255,.86);max-width:740px;margin:0 auto}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.hero-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:46px}
.metric{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:16px;padding:16px 14px;text-align:center;
  transition:transform .25s ease,background .25s ease;
}
.metric:hover{transform:translateY(-3px);background:rgba(255,255,255,.16)}
.metric strong{display:block;font-size:20px;color:#ffffff;line-height:1.3}
.metric span{display:block;font-size:13px;color:rgba(255,255,255,.78);margin-top:2px}

/* 区块通用 */
.section{padding:76px 0}
.section-head{max-width:800px;margin:0 auto 42px;text-align:center}
.section-head h2{font-size:clamp(23px,3vw,32px);margin:16px 0 12px}
.section-head p{color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;
  letter-spacing:.08em;color:#1a3fc4;background:rgba(47,107,255,.10);border:1px solid rgba(47,107,255,.20);
}

/* 卡片与网格 */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:0 16px 40px -34px rgba(15,38,100,.65);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 26px 52px -32px rgba(15,38,100,.6);border-color:rgba(47,107,255,.42)}
.card h3{font-size:17px;margin:16px 0 8px}
.card p{font-size:14.5px;color:var(--muted)}
.icon-box{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2f6bff,#39d3ff);
  box-shadow:0 12px 24px -14px rgba(47,107,255,.95);
}
.icon-box .glyph{display:block;width:15px;height:15px;border:2px solid #ffffff;border-radius:5px}

/* 标签云 */
.cloud-title{text-align:center;color:var(--muted);font-size:14.5px;margin-top:36px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:16px}
.tag-cloud span{
  padding:7px 14px;border-radius:999px;background:#ffffff;border:1px solid #dee7f8;
  font-size:13.5px;color:#33415f;transition:transform .2s ease,border-color .2s ease,color .2s ease;
}
.tag-cloud span:hover{transform:translateY(-2px);border-color:#2f6bff;color:#1c47e0}

/* 展示区 */
.banner{
  margin:0 0 22px;border-radius:20px;overflow:hidden;border:1px solid #dbe5f9;
  background:#e9f0ff;box-shadow:0 22px 50px -40px rgba(15,38,100,.8);
}
.banner img{display:block;width:100%;height:auto}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.step{
  background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,107,255,.42);box-shadow:0 22px 44px -34px rgba(15,38,100,.75)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#2f6bff,#39d3ff);color:#ffffff;font-weight:700;font-size:14px;margin-bottom:12px;
}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}

/* 案例 */
.case{background:#ffffff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.case:hover{transform:translateY(-4px);border-color:rgba(47,107,255,.42);box-shadow:0 26px 52px -34px rgba(15,38,100,.7)}
.case .shot{aspect-ratio:4/3;overflow:hidden;background:#e9f0ff}
.case .shot img{width:100%;height:100%;object-fit:cover;display:block}
.case-body{padding:22px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body p{font-size:14.5px;color:var(--muted)}

/* 评测 */
.score-card{
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;
  padding:26px 30px;border-radius:20px;margin-bottom:24px;
  background:linear-gradient(135deg,#0d2258,#1c47e0);color:#ffffff;
  box-shadow:0 26px 60px -40px rgba(12,34,88,.95);
}
.score-value{font-size:50px;font-weight:800;line-height:1;color:#ffffff}
.score-value span{font-size:18px;font-weight:600;color:rgba(255,255,255,.72)}
.score-meta{flex:1 1 260px}
.score-stars{font-size:20px;letter-spacing:4px;color:#ffd66b;line-height:1.2}
.score-meta p{color:rgba(255,255,255,.86);font-size:14.5px;margin-top:6px}
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#ffffff;
  box-shadow:0 18px 44px -36px rgba(15,38,100,.75);
}
table{width:100%;border-collapse:collapse;min-width:660px}
thead th{
  background:linear-gradient(135deg,#12307d,#1c47e0);color:#ffffff;
  font-size:14.5px;padding:15px 18px;text-align:left;font-weight:700;
}
tbody td{padding:14px 18px;border-top:1px solid var(--line);font-size:14.5px;color:#26324e;vertical-align:top}
tbody tr:nth-child(even){background:#f7faff}
tbody td:first-child{font-weight:600;color:#12204a}
tbody td:nth-child(2){color:#1a3fc4;font-weight:600}

/* 评价 */
.review{background:#ffffff;border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.review:hover{transform:translateY(-4px);border-color:rgba(47,107,255,.42);box-shadow:0 24px 50px -34px rgba(15,38,100,.7)}
.review-text{color:#26324e;font-size:15px}
.review-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2f6bff,#39d3ff);color:#ffffff;font-weight:700;font-size:15px;
}
.review-name{font-weight:700;font-size:14.5px;color:#0b1738}
.review-role{font-size:13px;color:var(--muted)}

/* FAQ */
.faq{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq details{
  background:#ffffff;border:1px solid var(--line);border-radius:14px;padding:0 20px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq details[open]{border-color:rgba(47,107,255,.45);box-shadow:0 20px 44px -36px rgba(15,38,100,.85)}
.faq summary{
  cursor:pointer;list-style:none;padding:18px 32px 18px 0;font-weight:700;font-size:16px;color:#12204a;
  position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:600;color:#1c47e0;transition:transform .2s ease;
}
.faq details[open] summary::after{content:"−"}
.faq p{padding:0 0 20px;color:var(--muted);font-size:15px}

/* 文章列表 */
.article-list{display:grid;gap:12px}
.article-list a{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 18px;
  background:#ffffff;border:1px solid var(--line);border-radius:14px;padding:16px 22px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.article-list a:hover{transform:translateX(4px);border-color:rgba(47,107,255,.5);box-shadow:0 18px 36px -32px rgba(15,38,100,.8)}
.article-list span{font-weight:700;color:#12204a;font-size:15px}
.article-list em{font-style:normal;color:var(--muted);font-size:13.5px}

/* 加盟 */
.join-panel{
  display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;
  padding:36px;border-radius:22px;color:#ffffff;
  background:linear-gradient(135deg,#0b1e4d 0%,#153787 55%,#1c47e0 100%);
  box-shadow:0 30px 70px -46px rgba(8,26,69,.95);
}
.join-panel h2{color:#ffffff;font-size:clamp(22px,2.8vw,30px);margin:16px 0 14px}
.join-panel p{color:rgba(255,255,255,.85);font-size:15px}
.join-panel .eyebrow{color:#c8e8ff;background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.32)}
.join-panel .btn{margin-top:22px;background:#ffffff;color:#1240c8;box-shadow:0 18px 34px -20px rgba(0,0,0,.6)}
.join-panel .btn:hover{transform:translateY(-2px)}
.join-list{display:grid;gap:12px}
.join-list li{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:12px 16px;font-size:14.5px;color:rgba(255,255,255,.92);
}

/* 联系表单 */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.form-card{
  background:#ffffff;border:1px solid var(--line);border-radius:20px;padding:28px;
  box-shadow:0 22px 54px -40px rgba(15,38,100,.8);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px;display:flex;flex-direction:column;gap:7px}
.field label{font-size:14px;font-weight:600;color:#1d2a4a}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:#0b1738;
  background:#f7faff;border:1px solid #dbe5f9;border-radius:12px;padding:12px 14px;
  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:#2f6bff;background:#ffffff;box-shadow:0 0 0 3px rgba(47,107,255,.15);
}
.field textarea{min-height:120px;resize:vertical}
.form-card .btn{width:100%;margin-top:6px}
.contact-card{background:#ffffff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 22px 54px -40px rgba(15,38,100,.7)}
.contact-card h3{font-size:17px;margin-bottom:10px}
.contact-item{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed #e3eaf8;font-size:14.5px}
.contact-item:last-of-type{border-bottom:none}
.contact-item span{color:var(--muted);flex:0 0 auto}
.contact-item strong{color:#0b1738;text-align:right;word-break:break-all;font-weight:600}
.qr{display:flex;align-items:center;gap:14px;margin-top:18px;padding-top:18px;border-top:1px dashed #e3eaf8}
.qr img{width:104px;height:104px;border-radius:12px;border:1px solid var(--line);object-fit:contain;background:#ffffff;flex:0 0 auto}
.qr p{font-size:13.5px;color:var(--muted)}

/* 页脚 */
.site-footer{background:#081a45;color:#dbe4ff;padding:52px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-bottom:36px}
.footer-brand .brand-text{color:#ffffff}
.footer-desc{color:#a9b8e0;font-size:14px;margin-top:14px;max-width:340px}
.footer-col h3{font-size:15px;color:#ffffff;margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col li{color:#b7c5ec;font-size:14px}
.footer-col a{color:#b7c5ec;font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:#ffffff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#93a4d0;
}
.footer-bottom a{color:#c3d0f0}
.footer-bottom a:hover{color:#ffffff}

/* 浮动组件 */
.float-service{position:fixed;right:20px;bottom:88px;z-index:90}
.fs-toggle{
  width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2f6bff,#1c47e0);color:#ffffff;
  font-size:12.5px;font-weight:700;line-height:1.2;
  display:flex;align-items:center;justify-content:center;text-align:center;
  box-shadow:0 18px 34px -14px rgba(28,71,224,.95);
  transition:transform .22s ease,box-shadow .22s ease;
}
.fs-toggle:hover{transform:translateY(-3px);box-shadow:0 22px 38px -14px rgba(28,71,224,1)}
.fs-panel{
  position:absolute;right:0;bottom:70px;width:238px;
  background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:16px;
  box-shadow:0 28px 64px -30px rgba(9,26,72,.7);display:none;color:#0b1738;
}
.fs-panel.is-open{display:block}
.fs-panel img{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);display:block;background:#ffffff}
.fs-panel p{font-size:13.5px;color:var(--muted);margin-top:10px}
.fs-panel ul{display:grid;gap:6px;margin-top:8px}
.fs-panel li{font-size:13px;color:#22304f}
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:90;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#ffffff;color:#1c47e0;font-size:18px;font-weight:700;
  cursor:pointer;display:none;align-items:center;justify-content:center;
  box-shadow:0 16px 32px -20px rgba(15,38,100,.9);transition:transform .2s ease;
}
.to-top.is-visible{display:flex}
.to-top:hover{transform:translateY(-3px)}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover,.step:hover,.case:hover,.review:hover,.metric:hover,.article-list a:hover{transform:none}
}

/* 响应式 */
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .brand{margin-right:auto}
  .header-inner{flex-wrap:wrap}
  .main-nav{
    display:none;flex-basis:100%;order:4;justify-content:flex-start;
    border-top:1px solid var(--line);margin-top:8px;padding-top:8px;padding-bottom:8px;
  }
  .main-nav.is-open{display:flex}
  .nav-links{flex-direction:column;align-items:stretch;width:100%}
  .nav-links a{padding:11px 6px;font-size:15px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-grid{grid-template-columns:1fr}
  .join-panel{grid-template-columns:1fr;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:760px){
  .section{padding:56px 0}
  .hero{padding:60px 0 56px}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:34px}
  .section-head{margin-bottom:32px}
  .score-card{padding:22px 24px;gap:16px}
  .score-value{font-size:42px}
}
@media (max-width:640px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
  .fs-panel{width:210px}
}

.reveal{opacity:1;transform:none}