/* 智扣原创模板 ZK-002 · 企业服务官网 · 版权归智扣所有 */
:root {
  --ink: #2A211B;
  --ink-2: #4A3C31;
  --muted: #83705F;
  --line: #EDE1D6;
  --brand: #E8703A;
  --brand-2: #F79C55;
  --cream: #FFF8F2;
  --soft: #FFF3E9;
  --dark: #2C1B12;
  --radius: 16px;
  --shadow: 0 18px 46px rgba(84, 48, 22, .12);
}
* { 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: #fff; line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(1140px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: .16em; color: var(--brand); font-weight: 800; margin-bottom: 12px; }
.eyebrow.light { color: #FFD3B8; }
h1, h2, h3 { line-height: 1.3; letter-spacing: -.01em; }
h2 { font-size: clamp(24px, 2.4vw, 33px); font-weight: 800; }
.lead { font-size: 16.5px; color: var(--ink-2); margin: 14px 0 10px; }
.muted { color: var(--muted); }
.section { padding: 82px 0; }
.section-soft { background: var(--cream); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 36px; }
.section-head p { max-width: 420px; color: var(--muted); font-size: 14px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-head.center p { max-width: 560px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,252,248,.94); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 22px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; font-weight: 800; font-size: 13px; }
.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: 24px; margin-left: auto; }
.site-nav a { font-size: 14px; color: var(--ink-2); padding: 6px 0; }
.site-nav a:hover { color: var(--brand); }
.header-cta { background: var(--brand); color: #fff; padding: 10px 20px; border-radius: 999px; font-size: 13px; font-weight: 700; white-space: nowrap; box-shadow: 0 8px 20px rgba(232,112,58,.26); }
.header-cta:hover { background: var(--brand-2); }
.nav-toggle { display: none; border: 0; background: none; font-size: 22px; cursor: pointer; }

.hero { position: relative; overflow: hidden; background: var(--cream); text-align: center; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg::before { content: ""; position: absolute; inset: 0; background: radial-gradient(680px 420px at 18% 12%, rgba(247,156,85,.34), transparent 62%), radial-gradient(720px 460px at 84% 30%, rgba(232,112,58,.22), transparent 64%), linear-gradient(180deg, #FFF8F2 0%, #FFFDFA 100%); }
.hero-bg::after { content: ""; position: absolute; left: 50%; bottom: -120px; width: 900px; height: 240px; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(232,112,58,.14), transparent); }
.hero-inner { position: relative; z-index: 2; padding: 78px 0 0; display: flex; flex-direction: column; align-items: center; }
.hero h1 { font-size: clamp(32px, 4.1vw, 52px); font-weight: 800; margin: 6px 0 18px; }
.hero h1 span { color: var(--brand); }
.hero-desc { color: var(--ink-2); font-size: 16px; max-width: 620px; margin: 0 auto; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; justify-content: center; }
.btn-primary, .btn-ghost { display: inline-flex; align-items: center; justify-content: center; padding: 13px 27px; border-radius: 999px; font-weight: 700; font-size: 14px; border: 0; cursor: pointer; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 12px 26px rgba(232,112,58,.28); }
.btn-primary:hover { background: var(--brand-2); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink-2); background: #fff; }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; width: 100%; margin-top: 54px; background: #fff; border: 1px solid var(--line); border-bottom: 0; border-radius: var(--radius) var(--radius) 0 0; box-shadow: var(--shadow); }
.stat { padding: 26px 18px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { font-size: 30px; font-weight: 800; color: var(--ink); }
.stat b span { font-size: 13px; color: var(--brand); margin-left: 2px; }
.stat small { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }

.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: start; }
.about-copy h2 { margin-bottom: 4px; }
.about-numbers { display: flex; gap: 34px; margin-top: 28px; flex-wrap: wrap; }
.about-numbers div { display: flex; flex-direction: column; }
.about-numbers b { font-size: 26px; font-weight: 800; color: var(--brand); }
.about-numbers span { font-size: 12.5px; color: var(--muted); }
.about-points { display: grid; gap: 14px; }
.point { display: flex; gap: 16px; padding: 20px 22px; border-radius: var(--radius); background: var(--cream); border: 1px solid var(--line); }
.point b { font-size: 13px; font-weight: 800; color: #fff; background: var(--brand); width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; flex: none; }
.point strong { font-size: 15px; }
.point p { font-size: 13px; color: var(--muted); margin-top: 4px; }

.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.service-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: transform .18s ease, box-shadow .18s ease; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--soft); color: var(--brand); font-weight: 800; font-size: 13px; margin-bottom: 18px; }
.service-card h3 { font-size: 18px; margin-bottom: 9px; }
.service-card p { font-size: 13px; color: var(--muted); min-height: 66px; }
.service-tag { display: inline-block; margin-top: 14px; font-size: 11px; color: var(--brand); background: var(--soft); padding: 4px 10px; border-radius: 999px; }

.timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 48px; }
.timeline::before { content: ""; position: absolute; left: 4%; right: 4%; top: 9px; height: 2px; background: linear-gradient(90deg, var(--brand), rgba(232,112,58,.12)); }
.timeline-step { position: relative; padding-top: 30px; }
.timeline-step .dot { position: absolute; left: 0; top: 0; width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--brand); }
.timeline-step b { font-size: 16px; display: block; }
.timeline-step p { font-size: 13px; color: var(--muted); margin-top: 5px; max-width: 220px; }
.strength-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding-top: 40px; border-top: 1px solid var(--line); }
.strength-bottom h3 { font-size: 20px; }
.strength-copy p { margin-top: 8px; font-size: 13.5px; max-width: 420px; }
.check-list { list-style: none; 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; color: var(--brand); font-weight: 800; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cert { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 24px 22px; display: flex; flex-direction: column; gap: 6px; }
.cert b { font-size: 17px; font-weight: 800; }
.cert span { font-size: 12.5px; color: var(--muted); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.case-card { background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; position: relative; }
.case-tag { display: inline-block; font-size: 11px; color: var(--brand); background: #fff; border: 1px solid var(--line); 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); }
.case-metric { display: flex; align-items: baseline; gap: 8px; margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line); }
.case-metric b { font-size: 28px; color: var(--brand); font-weight: 800; }
.case-metric b span { font-size: 13px; }
.case-metric span { font-size: 12px; color: var(--muted); }

.section-contact { background: linear-gradient(135deg, #C9562A 0%, #A63F1E 46%, #4A200F 100%); color: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-desc { color: #FFD9C3; font-size: 14.5px; max-width: 460px; }
.contact-info { display: grid; gap: 14px; margin-top: 28px; }
.contact-info div { display: flex; gap: 14px; font-size: 14px; }
.contact-info span { width: 46px; color: #FFC5A4; }
.contact-form { background: #fff; border-radius: 18px; padding: 30px; display: grid; gap: 14px; color: var(--ink); box-shadow: 0 26px 60px rgba(46,17,6,.34); }
.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; background: #FFFCF9; outline: none; color: var(--ink); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--brand-2); background: #fff; }
.contact-form .btn-primary { width: 100%; border-radius: 10px; }
.form-tip { font-size: 11.5px; color: #A99889; text-align: center; }

.site-footer { background: #2A1810; color: #D6BFB0; 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: #9C8272; }
.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: #8A7264; }

.toast { position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 16px); background: var(--brand); 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 { padding-top: 62px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .about-grid, .strength-bottom, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; gap: 26px 18px; }
  .timeline::before { display: none; }
  .cert-grid, .case-grid { grid-template-columns: 1fr; }
  .site-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; padding: 16px 24px; gap: 14px; }
  .site-nav.open { display: flex; }
  .nav-toggle { display: block; margin-left: auto; }
  .header-cta { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 22px; }
  .footer-meta { text-align: left; }
}
@media (max-width: 640px) {
  .section { padding: 58px 0; }
  .service-grid, .hero-stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .timeline { grid-template-columns: 1fr; }
}