/* 智扣原创模板 ZK-001 · 智造工业官网 · 版权归智扣所有 */
:root {
  --ink: #0B1B2B;
  --ink-2: #22384C;
  --muted: #61758A;
  --line: #E3EAF1;
  --blue: #0B63CE;
  --blue-2: #1D8BE8;
  --cyan: #22B8D8;
  --bg: #F5F8FB;
  --white: #fff;
  --radius: 14px;
  --shadow: 0 18px 46px rgba(11, 27, 43, .10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: .16em; color: var(--blue);
  font-weight: 700; text-transform: uppercase; margin-bottom: 12px;
}
.eyebrow.light { color: #7FD4F0; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.01em; }
h2 { font-size: clamp(24px, 2.4vw, 34px); font-weight: 800; }
.lead { font-size: 17px; color: var(--ink-2); margin: 14px 0 10px; }
.muted { color: var(--muted); }
.section { padding: 84px 0; }
.section-soft { background: var(--bg); }
.section-dark { background: var(--ink); color: #fff; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 38px; }
.section-head p { max-width: 430px; color: var(--muted); font-size: 14px; }
.section-dark .section-head p { color: #9FB4C8; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; font-weight: 800; font-size: 14px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text b { font-size: 16px; }
.brand-text small { font-size: 11px; color: var(--muted); letter-spacing: .08em; }
.site-nav { display: flex; gap: 26px; margin-left: auto; }
.site-nav a { font-size: 14px; color: var(--ink-2); position: relative; padding: 6px 0; }
.site-nav a:hover { color: var(--blue); }
.header-cta {
  background: var(--blue); color: #fff; padding: 9px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 700; white-space: nowrap;
}
.header-cta:hover { background: var(--blue-2); }
.nav-toggle { display: none; border: 0; background: none; font-size: 22px; cursor: pointer; }

.hero { position: relative; overflow: hidden; background: #071726; color: #fff; }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 460px at 78% 18%, rgba(34,184,216,.30), transparent 60%),
    radial-gradient(700px 420px at 12% 82%, rgba(11,99,206,.34), transparent 62%),
    linear-gradient(180deg, #071726 0%, #0A2136 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(127,212,240,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127,212,240,.10) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.65), transparent 78%);
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; padding: 100px 0 92px; }
.hero h1 { font-size: clamp(34px, 4.2vw, 56px); font-weight: 800; margin: 10px 0 18px; }
.hero h1 span { color: #8FD9F2; }
.hero-desc { color: #BFD0DF; font-size: 16px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: 14px; border: 0; cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; box-shadow: 0 10px 26px rgba(11,99,206,.32); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { border: 1px solid rgba(255,255,255,.28); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.08); }
.hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.metric {
  padding: 22px 20px; border-radius: var(--radius);
  background: rgba(255,255,255,.06); border: 1px solid rgba(127,212,240,.18);
}
.metric b { font-size: 30px; font-weight: 800; color: #fff; }
.metric b span { font-size: 13px; margin-left: 3px; color: #8FD9F2; }
.metric small { display: block; color: #9FB4C8; font-size: 12px; margin-top: 4px; }

.about-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 64px; align-items: start; }
.about-points { display: grid; gap: 14px; }
.point { display: flex; gap: 16px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.point b { font-size: 18px; color: var(--blue); font-weight: 800; }
.point strong { font-size: 15px; }
.point p { font-size: 13px; color: var(--muted); margin-top: 4px; }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product-card {
  padding: 26px 22px; border-radius: var(--radius); background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10); transition: transform .2s ease, background .2s ease;
}
.product-card:hover { transform: translateY(-4px); background: rgba(255,255,255,.08); }
.product-icon { font-size: 12px; letter-spacing: .12em; color: #7FD4F0; font-weight: 800; margin-bottom: 18px; }
.product-card h3 { font-size: 18px; margin-bottom: 10px; }
.product-card p { font-size: 13px; color: #AFC3D6; min-height: 66px; }
.product-tag { display: inline-block; margin-top: 14px; font-size: 11px; color: #8FD9F2; border: 1px solid rgba(127,212,240,.24); padding: 4px 10px; border-radius: 999px; }

.strength-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items: center; }
.check-list { list-style: none; margin-top: 20px; display: grid; gap: 10px; }
.check-list li { font-size: 14px; color: var(--ink-2); padding-left: 26px; position: relative; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--blue); font-weight: 800;
}
.process { display: grid; gap: 12px; }
.process-step { display: flex; gap: 18px; padding: 20px 22px; background: var(--bg); border-radius: var(--radius); border: 1px solid var(--line); }
.process-step span { font-size: 13px; font-weight: 800; color: var(--blue); letter-spacing: .08em; }
.process-step b { font-size: 15px; }
.process-step p { font-size: 13px; color: var(--muted); margin-top: 3px; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cert {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px;
  display: flex; flex-direction: column; gap: 6px;
}
.cert b { font-size: 20px; font-weight: 800; color: var(--ink); }
.cert span { font-size: 12.5px; color: var(--muted); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.case-card { padding: 26px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.case-tag { display: inline-block; font-size: 11px; color: var(--blue); background: #EAF3FF; padding: 4px 10px; border-radius: 999px; font-weight: 700; }
.case-card h3 { font-size: 17px; margin: 14px 0 8px; }
.case-card p { font-size: 13px; color: var(--muted); }

.section-contact { background: linear-gradient(135deg, #0B63CE 0%, #0A467F 55%, #071726 100%); color: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-desc { color: #CFE2F5; font-size: 14.5px; max-width: 480px; }
.contact-info { display: grid; gap: 14px; margin-top: 30px; }
.contact-info div { display: flex; gap: 14px; font-size: 14px; }
.contact-info span { width: 48px; color: #8FD9F2; }
.contact-form {
  background: #fff; border-radius: 18px; padding: 30px; display: grid; gap: 14px; color: var(--ink);
  box-shadow: var(--shadow);
}
.contact-form label { display: grid; gap: 7px; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.contact-form input, .contact-form textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 11px 13px;
  font: inherit; font-size: 14px; color: var(--ink); background: #FAFCFE; outline: none;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--blue-2); background: #fff; }
.contact-form .btn-primary { width: 100%; border-radius: 10px; }
.form-tip { font-size: 11.5px; color: #9AAABA; text-align: center; }

.site-footer { background: #061523; color: #B9CADA; padding: 46px 0 34px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr auto; gap: 40px; align-items: start; }
.brand-footer .brand-text small { color: #7D93A8; }
.footer-desc { font-size: 12.5px; margin-top: 12px; max-width: 320px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-meta { text-align: right; font-size: 12px; line-height: 1.9; }
.powered { color: #6F8599; }

.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 16px);
  background: #0B63CE; color: #fff; padding: 12px 20px; border-radius: 999px;
  font-size: 13px; opacity: 0; pointer-events: none; transition: .25s ease; z-index: 30;
  max-width: calc(100% - 40px); text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 960px) {
  .hero-inner, .about-grid, .strength-grid, .contact-grid { grid-template-columns: 1fr; gap: 38px; }
  .hero-inner { padding: 72px 0 64px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .cert-grid, .case-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-meta { text-align: left; }
}
@media (max-width: 680px) {
  .wrap { width: calc(100% - 32px); }
  .site-nav {
    position: absolute; top: 70px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line);
    display: none; flex-direction: column; gap: 0; padding: 8px 16px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; margin-left: auto; }
  .header-cta { display: none; }
  .header-inner { position: relative; }
  .section { padding: 58px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .product-grid, .cert-grid, .case-grid { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .contact-form { padding: 22px; }
}