:root{
  --navy:#0b2338;
  --navy-2:#123550;
  --teal:#0e7c86;
  --teal-dark:#0a6670;
  --ink:#1c2b36;
  --muted:#5b6b78;
  --line:#e2e9ee;
  --bg-soft:#f4f8fa;
  --radius:14px;
  --max:1180px;
  --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:#fff;line-height:1.65;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--teal);text-transform:uppercase;margin-bottom:14px;
}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap;
}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark)}
.btn-ghost-light{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost-light:hover{background:rgba(255,255,255,.13)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:8px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;height:var(--header-h);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.02em}
.logo-mark{
  width:30px;height:30px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--teal),#12a3a8);
  display:grid;place-items:center;color:#fff;font-size:14px;font-weight:800;
}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:15px;color:var(--muted);font-weight:500;transition:.15s}
.nav a:hover,.nav a.active{color:var(--teal)}
.header-cta{display:flex;align-items:center;gap:12px}

/* 纯 CSS 移动端菜单开关 */
.nav-toggle-input{
  position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;
}
.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:8px;cursor:pointer;place-items:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:76px 0 68px;color:#fff;
  background:
    radial-gradient(900px 420px at 82% -12%,rgba(18,163,168,.38),transparent 62%),
    linear-gradient(158deg,#0b2338 0%,#123550 58%,#0d3a4c 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 70% 20%,#000,transparent 72%);
}
.hero-grid{
  position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;
  gap:56px;align-items:center;
}
.hero .eyebrow{color:#5fd6d0}
.hero h1{font-size:clamp(30px,4.2vw,46px);margin-bottom:20px}
.hero .lead{font-size:17px;color:rgba(255,255,255,.78);max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-facts{display:flex;flex-direction:column;gap:10px}
.hero-facts li{
  font-size:14px;color:rgba(255,255,255,.72);
  padding-left:22px;position:relative;
}
.hero-facts li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:12px;
  border-radius:50%;background:rgba(18,163,168,.28);border:1px solid rgba(95,214,208,.7);
}
.hero-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);
  border-radius:18px;padding:26px;backdrop-filter:blur(12px);
}
.panel-head{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:#5fd6d0;
  text-transform:uppercase;margin-bottom:18px;
}
.panel-list{display:flex;flex-direction:column;gap:14px}
.panel-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;
  color:rgba(255,255,255,.9);line-height:1.5;
}
.panel-list .dot{
  width:7px;height:7px;border-radius:50%;background:#5fd6d0;flex:none;margin-top:8px;
}
.panel-foot{
  margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.13);
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- 合规徽章条 ---------- */
.badge-bar{background:#fff;border-bottom:1px solid var(--line);padding:22px 0}
.badge-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.badge{
  font-size:13px;font-weight:600;color:var(--navy-2);
  border:1px solid var(--line);background:var(--bg-soft);
  padding:7px 14px;border-radius:999px;display:inline-flex;align-items:center;gap:7px;
}
.badge::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--teal);flex:none;
}

/* ---------- 系统卡片 ---------- */
.sys-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(208px,1fr));gap:18px}
.sys-card{
  display:flex;flex-direction:column;gap:10px;padding:24px;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  transition:.2s;
}
.sys-card:hover{
  border-color:rgba(14,124,134,.55);transform:translateY(-3px);
  box-shadow:0 18px 34px -24px rgba(14,124,134,.85);
}
.sys-card .abbr{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--teal)}
.sys-card h3{font-size:17px}
.sys-card p{font-size:14px;color:var(--muted);line-height:1.6;flex:1}
.sys-card .more{font-size:13.5px;font-weight:600;color:var(--teal);margin-top:4px}

/* ---------- 特性四宫格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.feature{
  padding:26px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);
}
.feature .num{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:rgba(14,124,134,.1);color:var(--teal);font-weight:800;font-size:14px;margin-bottom:16px;
}
.feature h3{font-size:16.5px;margin-bottom:9px}
.feature p{font-size:14.5px;color:var(--muted);line-height:1.65}

/* ---------- 交付物清单 ---------- */
.deliver-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.deliver-list{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:26px;
}
.deliver-list li{
  display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--ink);
  border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px 14px;
}
.deliver-list li::before{
  content:"";width:16px;height:16px;flex:none;border-radius:4px;
  background:rgba(14,124,134,.12);border:1px solid rgba(14,124,134,.35);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-6' stroke='%230e7c86' stroke-width='1.8' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;
}

/* ---------- 引用 ---------- */
.quote-card{
  border-left:4px solid var(--teal);background:#fff;border-radius:0 var(--radius) var(--radius) 0;
  padding:32px 34px;border-top:1px solid var(--line);border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);max-width:880px;margin:0;
}
.quote-card p{font-size:17px;line-height:1.75;color:var(--ink)}
.quote-card footer{margin-top:16px;font-size:13.5px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(150deg,#0b2338,#124055);color:#fff;text-align:center;
  padding:76px 0;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.72);max-width:620px;margin:0 auto 30px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{background:#081b2b;color:rgba(255,255,255,.62);padding:56px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.02em}
.site-footer a:hover{color:#5fd6d0}
.site-footer li{margin-bottom:10px}
.footer-brand p{line-height:1.7;margin-top:14px;max-width:340px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom a:hover{color:rgba(255,255,255,.7)}

/* ---------- 产品页 ---------- */
.page-head{
  background:linear-gradient(158deg,#0b2338,#123550);color:#fff;padding:64px 0 58px;
}
.page-head h1{font-size:clamp(28px,3.6vw,40px);margin-bottom:16px}
.page-head p{color:rgba(255,255,255,.75);max-width:680px;font-size:16.5px}
.subnav{
  position:sticky;top:var(--header-h);z-index:90;background:#fff;
  border-bottom:1px solid var(--line);
}
.subnav-inner{display:flex;gap:8px;overflow-x:auto;padding:10px 24px;max-width:var(--max);margin:0 auto}
.subnav a{
  font-size:14px;font-weight:600;color:var(--muted);padding:8px 16px;border-radius:8px;
  white-space:nowrap;transition:.15s;
}
.subnav a:hover{background:var(--bg-soft);color:var(--teal)}

.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;min-width:720px;font-size:14.5px}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--bg-soft);font-size:13.5px;color:var(--navy-2);font-weight:700}
tbody tr:last-child td{border-bottom:none}
td.ck{color:var(--teal);font-weight:800}
td.no{color:#b7c2cb}

.prod-section{padding:76px 0;border-bottom:1px solid var(--line);scroll-margin-top:calc(var(--header-h) + 62px)}
.prod-section:nth-of-type(even){background:var(--bg-soft)}
.prod-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.prod-tag{
  font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--teal);margin-bottom:12px;display:block;
}
.prod-section h2{font-size:clamp(22px,2.6vw,29px);margin-bottom:16px}
.prod-pitch{font-size:16.5px;color:var(--ink);line-height:1.7;margin-bottom:24px}
.evidence-card{
  border:1px dashed rgba(14,124,134,.45);background:rgba(14,124,134,.045);
  border-radius:12px;padding:18px 20px;
}
.evidence-card strong{display:block;font-size:12.5px;letter-spacing:.1em;color:var(--teal);margin-bottom:8px}
.evidence-card span{font-size:14px;color:var(--muted);line-height:1.6}
.feat-list{display:flex;flex-direction:column;gap:0}
.feat-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);font-size:15px;line-height:1.6;
}
.feat-list li:first-child{padding-top:0}
.feat-list li:last-child{border-bottom:none;padding-bottom:0}
.feat-list .idx{
  font-size:12px;font-weight:800;color:var(--teal);flex:none;width:22px;padding-top:3px;
}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.about-text p{font-size:16px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.step-list{display:flex;flex-direction:column;gap:18px}
.step{
  display:flex;gap:18px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
}
.step .n{
  width:34px;height:34px;flex:none;border-radius:50%;display:grid;place-items:center;
  background:var(--teal);color:#fff;font-weight:800;font-size:14px;
}
.step h3{font-size:16px;margin-bottom:7px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.65}

.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.contact-list{display:flex;flex-direction:column;gap:0}
.contact-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.contact-item:first-child{padding-top:0}
.contact-item .label{font-size:13px;color:var(--muted);width:88px;flex:none;padding-top:2px}
.contact-item .value{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.6}
.contact-item .value small{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:4px}

.qr-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;text-align:center;
  box-shadow:0 24px 48px -36px rgba(11,35,56,.5);
}
.qr-card h3{font-size:17px;margin-bottom:6px}
.qr-card > p{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.qr-box{
  width:220px;
  aspect-ratio: 888 / 1131;          /* 跟随原图比例，不裁切 */
  margin:0 auto 18px;border-radius:12px;overflow:hidden;
  display:grid;place-items:center;background:var(--bg-soft);
  border:1px dashed #c3d2db;
}
.qr-box img{width:100%;height:100%;object-fit:contain}
.qr-box img{width:100%;height:100%;object-fit:cover}
.qr-note{font-size:13px;color:var(--muted);line-height:1.6}
.qr-note strong{color:var(--teal)}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .hero-grid,.deliver-grid,.prod-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero{padding:56px 0 52px}
  section{padding:64px 0}
  .prod-section{padding:56px 0}
}
@media (max-width:760px){
  .nav{
    position:absolute;top:var(--header-h);left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 18px;
    border-bottom:1px solid var(--line);display:none;
  }
  .nav-toggle-input:checked ~ .header-inner .nav{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav a:last-child{border-bottom:none}
  .menu-toggle{display:grid}
  .header-cta .btn{display:none}
  .deliver-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .quote-card{padding:24px}
  .badge-list{justify-content:flex-start}
}