/* ===== 宇纳智联 - 主样式表 ===== */
:root {
  --blue: #1a56db;
  --blue-dark: #123fa8;
  --blue-light: #e6f0ff;
  --text: #0f172a;
  --text-muted: #64748b;
  --bg: #f1f5f9;
  --white: #fff;
  --border: #e2e8f0;
  --footer-bg: #0a1628;
  --footer-text: #94a3b8;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0,0,0,.06);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, 92vw); margin: 0 auto; }

/* ===== 导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  box-shadow: 0 2px 20px rgba(0,0,0,.06);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; display: grid; place-items: center; }
.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.logo-sub { font-size: 11px; color: #999; line-height: 1; }

.links { display: flex; align-items: center; gap: 28px; }
.links a {
  font-size: 15px; color: #444; font-weight: 500;
  position: relative; padding: 4px 0;
  transition: color .2s;
}
.links a:hover,
.links a.active { color: var(--blue); }

.nav-phone {
  font-size: 14px; font-weight: 600; color: #444;
  white-space: nowrap; flex-shrink: 0;
  letter-spacing: .3px;
}

.btn-contact {
  display: inline-flex; align-items: center;
  padding: 9px 24px; border-radius: 6px;
  background: var(--blue); color: #fff;
  font-size: 14px; font-weight: 600;
  transition: background .2s; flex-shrink: 0;
}
.btn-contact:hover { background: var(--blue-dark); }

.mobile { display: none; font-size: 26px; cursor: pointer; user-select: none; }
.mobile-nav { display: none; }
.mobile-nav a {
  display: block; padding: 12px 24px; border-top: 1px solid #eee;
  font-size: 14px; color: #444;
}
.mobile-nav a:hover { color: var(--blue); background: #f8faff; }

/* ===== Hero ===== */
.hero {
  background: var(--bg);
  padding: 24px 0 48px;
}
.hero-banner {
  width: 100%; height: auto;
  display: block;
  border-radius: 12px;
}
.btn-primary {
  display: inline-flex; align-items: center;
  padding: 12px 28px; border-radius: 6px;
  background: var(--blue); color: #fff;
  font-size: 15px; font-weight: 600;
  transition: all .2s;
  box-shadow: 0 6px 20px rgba(26,111,255,.3);
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }
.btn-outline {
  display: inline-flex; align-items: center;
  padding: 11px 27px; border-radius: 6px;
  border: 1.5px solid var(--blue); color: var(--blue);
  font-size: 15px; font-weight: 600;
  transition: all .2s;
}
.btn-outline:hover { background: var(--blue-light); }

/* ===== Features Bar ===== */
.features-bar {
  position: relative; z-index: 2;
  padding-top: 30px;
}
.features-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.feature-item {
  display: flex; align-items: center; gap: 14px;
  padding: 22px 24px;
}
.feature-item:not(:last-child) {
  border-right: 1px solid #f0f2f6;
}
.feature-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: #e8f1ff;
  border-radius: 10px;
  display: grid; place-items: center;
}
.feature-icon svg { width: 24px; height: 24px; }
.feature-icon .fi-shield { fill: none; stroke: #1a6fff; stroke-width: 2; stroke-linejoin: round; }
.feature-icon .fi-check { fill: none; stroke: #1a6fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-icon .fi-flow { fill: none; stroke: #1a6fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature-icon .fi-star { fill: #1a6fff; }
.feature-content h3 {
  font-size: 15px; font-weight: 700; color: var(--text);
  margin-bottom: 2px;
}
.feature-content p {
  font-size: 12px; color: #999;
  line-height: 1.4;
}

/* ===== Section ===== */
.section { padding: 70px 0; }
.sec-title {
  text-align: center; margin-bottom: 44px;
}
.sec-title h2 {
  font-size: 32px; font-weight: 800; color: #0a1628;
  margin-bottom: 8px;
}
.sec-title p {
  font-size: 15px; color: #999;
}

/* ===== Business Grid ===== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.biz-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .3s;
  position: relative;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.biz-img {
  height: 160px; background: #e8f0fb;
  display: grid; place-items: center; overflow: hidden;
}
.biz-img img { width: 100%; height: 100%; object-fit: cover; }
.biz-icon {
  position: absolute; top: 140px; left: 18px;
  width: 40px; height: 40px;
  background: var(--blue); border-radius: 10px;
  display: grid; place-items: center;
  box-shadow: 0 6px 16px rgba(26,111,255,.3);
}
.biz-card h3 {
  padding: 24px 18px 0;
  font-size: 18px; font-weight: 700;
}
.biz-card p {
  padding: 8px 18px 0;
  font-size: 13px; color: #999;
  line-height: 1.6;
}
.biz-more {
  display: block; padding: 12px 18px 18px;
  font-size: 13px; color: var(--blue); font-weight: 600;
}
.biz-more:hover { text-decoration: underline; }

/* ===== Cases Section ===== */
.cases-section { background: #fff; }
.cases-slider-wrap {
  position: relative;
  display: flex; align-items: center;
}
.cases-slider {
  display: flex; gap: 20px;
  overflow: hidden; scroll-behavior: smooth;
  flex: 1;
  flex-wrap: nowrap;
}
.case-card {
  flex: 0 0 calc(25% - 15px);
  min-width: 220px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
  transition: .3s;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-img {
  height: 180px; background: #e8f0fb;
  display: grid; place-items: center; overflow: hidden;
}
.case-img img { width: 100%; height: 100%; object-fit: cover; }
.case-info {
  padding: 16px;
}
.case-info h4 {
  font-size: 15px; font-weight: 700; margin-bottom: 8px;
}
.case-tag {
  display: inline-block;
  padding: 3px 10px; border-radius: 4px;
  background: var(--blue-light);
  color: var(--blue); font-size: 12px; font-weight: 600;
}
.slider-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  background: #fff; border: 1px solid #ddd;
  font-size: 22px; color: #555;
  display: grid; place-items: center;
  cursor: pointer; flex-shrink: 0;
  transition: all .2s;
  z-index: 2; margin: 0 4px;
}
.slider-arrow:hover { border-color: var(--blue); color: var(--blue); }

/* ===== Partner Section ===== */
.partner-section {
.partner-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: min(1300px, 92vw);
  height: 100%;
  background: url('../images/partner-bg.jpg') center center / cover no-repeat;
  z-index: 0;
}
  padding: 0;
  position: relative;
  overflow: hidden;
}
.partner-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 92vw);
  height: 100%;
  background: url('../images/partner-bg.jpg') center center / cover no-repeat;
  z-index: 0;
}
.partner-section::after {
  content: none;
}
.partner-section::after {
  content: none;
}
.partner-inner {
  display: grid; grid-template-columns: 1fr 0.85fr;
  gap: 50px; align-items: center;
  padding: 44px 40px;
  position: relative; z-index: 1;
}
.partner-left h2 {
  font-size: 30px; font-weight: 800; color: #0a1628;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.partner-title-accent { color: var(--blue); font-weight: 800; }
.partner-left > p {
  font-size: 14px; font-weight: 600; color: #888;
  margin-bottom: 28px; line-height: 2;
  letter-spacing: .5px;
}
.partner-tags {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-bottom: 28px;
}
.partner-tags span {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 16px;
  border-radius: 20px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(26,111,255,.12);
  font-size: 12px; font-weight: 600; color: #444;
  letter-spacing: .3px;
}
.partner-tags span svg path, .partner-tags span svg rect, .partner-tags span svg circle { stroke: #1a6fff; }
.btn-partner {
  display: inline-flex; align-items: center;
  padding: 10px 32px; border-radius: 24px;
  background: var(--blue); color: #fff;
  font-size: 13px; font-weight: 700;
  letter-spacing: 1px;
  transition: all .2s;
  box-shadow: 0 4px 16px rgba(26,111,255,.20);
}
.btn-partner:hover { background: var(--blue-dark); transform: translateY(-1px); }
.partner-right { display: grid; place-items: center; }

/* ===== CTA Section ===== */
.cta-section { padding: 70px 0; }
.cta-inner {
  display: grid; grid-template-columns: 1.3fr 1fr 0.4fr;
  gap: 40px; align-items: center;
}
.cta-left h2 {
  font-size: 32px; font-weight: 800; color: #0a1628;
  margin-bottom: 12px;
}
.cta-left > p {
  font-size: 15px; color: #999;
  margin-bottom: 24px;
}
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-right {
  display: flex; gap: 30px; align-items: center;
}
.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: #fff; border-radius: 10px;
  box-shadow: var(--shadow);
}
.c-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: var(--blue-light);
  border-radius: 8px;
  display: grid; place-items: center;
}
.contact-item b {
  display: block; font-size: 14px; color: var(--text);
  margin-bottom: 1px;
}
.contact-item span {
  font-size: 11px; color: #999;
}
.qr-box {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; flex-shrink: 0;
}
.qr-img {
  width: 165px; height: 165px;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
}
.qr-box > span {
  text-align: center; font-size: 11px; color: #999; line-height: 1.5;
}

/* ===== Footer ===== */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 5px 0 0;
}
.footer-brand > p {
  font-size: 13px; line-height: 1.8; color: #8899aa;
}
.footer h4 {
  color: #fff; font-size: 15px; margin-bottom: 16px;
  font-weight: 600;
}
.footer p, .footer a {
  font-size: 13px; color: #8899aa; line-height: 2;
}
.footer a:hover { color: #c0d4ff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; flex-wrap: wrap;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px; color: #667788;
}
.footer-links { display: flex; gap: 16px; }
.footer-links a { font-size: 12px; color: #667788; }
.footer-links a:hover { color: #c0d4ff; }

/* ===== Float Contact ===== */
.float-contact {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  display: grid; gap: 8px;
}
.float-contact a {
  background: var(--blue); color: #fff;
  border-radius: 10px; padding: 10px 16px;
  font-size: 13px; font-weight: 700;
  box-shadow: 0 6px 20px rgba(26,111,255,.3);
  transition: all .2s; text-align: center;
}
.float-contact a:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(26,111,255,.35); }

/* ===== Sub Pages ===== */
.page-hero {
  background: linear-gradient(135deg, #0a1628, #1a4db3);
  color: #fff; padding: 70px 0;
}
.page-hero h1 { font-size: 36px; margin-bottom: 10px; }
.breadcrumb { font-size: 14px; color: #c0d4ff; }

.section-title {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 24px; margin-bottom: 34px;
}
.section-title h2 { font-size: 28px; font-weight: 800; margin: 0; }
.section-title p { max-width: 500px; color: #999; margin: 0; }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }
.grid-2 { grid-template-columns: repeat(2,1fr); }

.card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); transition: .3s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card h3 { margin-bottom: 10px; font-size: 18px; }
.card p, .card li { color: #666; font-size: 14px; }
.card ul { padding-left: 18px; margin-top: 10px; }
.card .icon {
  width: 46px; height: 46px; border-radius: 10px;
  background: var(--blue-light);
  display: grid; place-items: center;
  font-size: 22px; margin-bottom: 14px; color: var(--blue);
}
.card .cover { height: 160px; background: #e8f0fb; display: grid; place-items: center; overflow: hidden; }
.card.case { padding: 0; overflow: hidden; }
.card.case .case-body { padding: 20px; }

.tag {
  display: inline-block; padding: 4px 10px; border-radius: 6px;
  background: var(--blue-light); color: var(--blue);
  font-size: 12px; font-weight: 600; margin-bottom: 8px;
}

.band { background: #fff; }

.cta {
  background: linear-gradient(135deg, #0a1628, #1a4db3);
  color: #fff; border-radius: 16px;
  padding: 48px; display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px; align-items: center;
}
.cta p { color: #c0d4ff; }
.cta h2 { margin-bottom: 8px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }

.process .card { position: relative; padding-top: 28px; }
.process .card::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; right: 22px; top: 14px;
  color: #d9e6fa; font-size: 36px; font-weight: 900;
}

.notice {
  border-left: 4px solid var(--blue); background: var(--blue-light);
  padding: 16px 20px; border-radius: 10px; color: #334;
}

.table {
  width: 100%; border-collapse: collapse;
  background: #fff; border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.table th, .table td { padding: 14px; border-bottom: 1px solid var(--border); text-align: left; }
.table th { background: #f8faff; font-weight: 600; }

.form { display: grid; gap: 14px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 12px 16px; border: 1px solid #dce4f0;
  border-radius: 8px; font: inherit; background: #fff;
  font-size: 14px;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .links { display: none; }
  .mobile { display: block; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-item { border-right: none; }
  .feature-item:nth-child(1),
  .feature-item:nth-child(2) { border-bottom: 1px solid #f0f2f6; }
  .feature-item:nth-child(odd) { border-right: 1px solid #f0f2f6; }
  .business-grid { grid-template-columns: 1fr 1fr; }
  .case-card { flex: 0 0 calc(50% - 10px); }
  .partner-inner { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .feature-item { border-right: none !important; border-bottom: 1px solid #f0f2f6; }
  .business-grid { grid-template-columns: 1fr; }
  .case-card { flex: 0 0 85%; }
  .cta-right { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .section { padding: 46px 0; }
  .container { width: 94vw; }
}