/* ==========================================
   安徽新君诺软件有限责任公司 - 企业官网
   设计：简约大气，参考金蝶精斗云蓝 #1677ff
   ========================================== */

:root {
  --brand: #1677ff;
  --brand-dark: #0f5fcc;
  --brand-light: #e6f2ff;
  --accent: #ff7a45;
  --text: #1f2937;
  --text-2: #4b5563;
  --text-3: #6b7280;
  --bg: #ffffff;
  --bg-2: #f7f9fc;
  --bg-3: #f0f4f9;
  --border: #e5e7eb;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 6px rgba(15, 23, 42, 0.05), 0 10px 25px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 24px rgba(15, 23, 42, 0.10), 0 24px 50px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --radius-lg: 16px;
  --max-width: 1200px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-dark); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* =============== Layout =============== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-sm { padding: 56px 0; }
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.section-title p {
  font-size: 16px;
  color: var(--text-3);
  max-width: 640px;
  margin: 0 auto;
}

/* =============== Header / Nav =============== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  white-space: nowrap;
  min-width: 0;
}
.logo-img { height: 36px; width: auto; display: block; flex-shrink: 0; }
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #4ca6ff);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.35);
}
.nav-links {
  display: flex;
  gap: 8px;
}
.nav-links a {
  padding: 8px 16px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition);
}
.nav-links a:hover {
  color: var(--brand);
  background: var(--brand-light);
}
.nav-links a.active {
  color: var(--brand);
  background: var(--brand-light);
}
.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}
.phone-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
}
.phone-pill:hover { color: var(--brand); background: var(--brand-light); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.28);
}
.btn-primary:hover {
  background: var(--brand-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(22, 119, 255, 0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 10px;
}
.menu-toggle {
  display: none;
  font-size: 22px;
  color: var(--text);
  padding: 8px;
}

/* =============== Hero =============== */
.hero {
  position: relative;
  padding: 96px 0 64px;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 50% -100px, rgba(22, 119, 255, 0.18), transparent 70%),
    linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero h1 span {
  background: linear-gradient(120deg, var(--brand), #4ca6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px dashed var(--border);
}
.hero-stat strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.2;
}
.hero-stat small {
  font-size: 13px;
  color: var(--text-3);
}
.hero-visual {
  position: relative;
}
.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  border: 1px solid var(--border);
}
.hero-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; }
.dot.y { background: #febc2e; }
.dot.g { background: #28c840; }
.hero-card-header span {
  flex: 1;
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}
.hero-card-header small { font-weight: 600; }
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.kpi {
  background: var(--bg-2);
  border-radius: 10px;
  padding: 14px;
}
.kpi-label { font-size: 12px; color: var(--text-3); }
.kpi-value { font-size: 22px; font-weight: 700; color: var(--text); margin-top: 4px; }
.kpi-delta { font-size: 12px; color: #16a34a; font-weight: 600; }
.chart {
  height: 130px;
  background:
    linear-gradient(to top, rgba(22,119,255,0.12), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 19px, var(--border) 19px 20px);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}
.chart::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 80' preserveAspectRatio='none'><path d='M0,70 L25,55 L50,60 L75,40 L100,45 L125,25 L150,30 L175,15 L200,20' fill='none' stroke='%231677ff' stroke-width='2.5' stroke-linecap='round'/><path d='M0,70 L25,55 L50,60 L75,40 L100,45 L125,25 L150,30 L175,15 L200,20 L200,80 L0,80 Z' fill='%231677ff' fill-opacity='0.15'/></svg>") no-repeat center / 100% 100%;
}

/* =============== Section: Products Matrix =============== */
.products-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 36px;
  gap: 4px;
  background: var(--bg-2);
  padding: 6px;
  border-radius: 999px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.tab-btn {
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  transition: all var(--transition);
}
.tab-btn.active {
  background: #fff;
  color: var(--brand);
  box-shadow: var(--shadow-sm);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--brand), #4ca6ff);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.product-card:hover {
  border-color: rgba(22, 119, 255, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.product-card:hover::before { transform: scaleX(1); }
.product-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--brand-light);
  color: var(--brand);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  font-size: 22px;
}
.product-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.product-card .product-sub { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 10px; }
.product-card p { font-size: 13.5px; color: var(--text-3); line-height: 1.6; margin-bottom: 16px; }
.product-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.product-link::after { content: "→"; transition: transform var(--transition); }
.product-card:hover .product-link::after { transform: translateX(4px); }

/* =============== Section: Comparison Table =============== */
.comparison {
  background: linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
}
.compare-table-wrap {
  overflow-x: auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 800px;
}
.compare-table th,
.compare-table td {
  padding: 18px 20px;
  text-align: center;
  font-size: 14.5px;
  border-bottom: 1px solid var(--border);
}
.compare-table thead th {
  background: var(--bg-2);
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
}
.compare-table thead th.highlight {
  background: var(--brand);
  color: #fff;
  border-radius: 8px 8px 0 0;
}
.compare-table tbody tr:hover { background: var(--bg-2); }
.compare-table td:first-child { text-align: left; color: var(--text-2); font-weight: 500; }
.compare-table .check { color: var(--brand); font-weight: 700; }
.compare-table .cross { color: #d1d5db; }
.compare-table td.highlight { background: rgba(22, 119, 255, 0.06); color: var(--text); font-weight: 600; }

/* =============== Section: Features =============== */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feat-card {
  padding: 32px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.feat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(22, 119, 255, 0.3);
}
.feat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  font-size: 26px;
}
.feat-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feat-card p { color: var(--text-3); font-size: 14.5px; }

/* =============== Section: Cases =============== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.case-cover {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.case-cover::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.4));
}
.case-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(255,255,255,0.92);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  z-index: 1;
}
.case-body { padding: 22px; }
.case-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.case-body p { font-size: 14px; color: var(--text-3); margin-bottom: 14px; }
.case-stats {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.case-stats div small { display: block; font-size: 11px; color: var(--text-3); }
.case-stats div strong { font-size: 16px; color: var(--brand); font-weight: 700; }

/* =============== Section: Service flow =============== */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
}
.flow-step {
  counter-increment: step;
  padding: 28px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  transition: all var(--transition);
}
.flow-step:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.flow-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -14px; left: 18px;
  background: var(--brand);
  color: #fff;
  width: 36px; height: 28px;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  font-family: "Courier New", monospace;
  letter-spacing: 1px;
}
.flow-step h4 { font-size: 17px; font-weight: 700; margin: 14px 0 8px; }
.flow-step p { font-size: 13.5px; color: var(--text-3); }

/* =============== Section: CTA =============== */
.cta {
  background: linear-gradient(135deg, #1677ff 0%, #0f5fcc 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before, .cta::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta::before { width: 280px; height: 280px; top: -100px; left: -100px; }
.cta::after { width: 200px; height: 200px; bottom: -60px; right: -60px; }
.cta h2 { font-size: 32px; font-weight: 700; margin-bottom: 14px; position: relative; }
.cta p { font-size: 16px; opacity: 0.92; margin-bottom: 30px; position: relative; }
.cta .btn-primary {
  background: #fff;
  color: var(--brand);
}
.cta .btn-primary:hover { background: #f0f4f9; }
.cta .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
  margin-left: 12px;
}
.cta .btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.7); color: #fff; }

/* =============== Page header (sub pages) =============== */
.page-header {
  background:
    radial-gradient(900px 400px at 50% -150px, rgba(22,119,255,0.18), transparent 70%),
    linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
  padding: 80px 0 60px;
  text-align: center;
}
.page-header h1 {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.page-header p { color: var(--text-3); max-width: 640px; margin: 0 auto; }
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 24px;
}
.breadcrumb a:hover { color: var(--brand); }

/* =============== Footer =============== */
.footer {
  background: #0e1a2b;
  color: #cbd5e1;
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr 2.0fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer h5 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer ul li { margin-bottom: 10px; }
.footer ul li a {
  color: #94a3b8;
  font-size: 14px;
}
.footer ul li a:hover { color: #fff; }

/* 联系我们列 - 加宽并对齐图标 */
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: #cbd5e1;
  font-size: 14px;
  line-height: 1.6;
  word-break: keep-all;
}
.footer-contact li > .ci {
  flex-shrink: 0;
  width: 20px;
  font-size: 15px;
  line-height: 1.6;
  text-align: center;
}
.footer-contact li .cl {
  font-size: 12.5px;
  color: #94a3b8;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.footer-contact li a { color: #e2e8f0; }
.footer-contact li a:hover { color: #fff; }
.footer-contact .phone-link {
  font-size: 17px;
  font-weight: 700;
  color: #4ca6ff;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.footer-contact .phone-link:hover { color: #7cc0ff; }
.footer-contact .addr { color: #cbd5e1; word-break: break-word; }
.footer-about p {
  font-size: 13.5px;
  line-height: 1.7;
  margin: 12px 0 18px;
  color: #94a3b8;
}
.qr-row {
  display: flex;
  gap: 14px;
}
.qr-block {
  background: rgba(255,255,255,0.06);
  padding: 12px;
  border-radius: 10px;
  text-align: center;
}
.qr-block .qr,
.qr-block img { width: 88px; height: 88px; object-fit: contain; display: block; border-radius: 6px; background: #fff; }
.qr-block small { display: block; margin-top: 6px; color: #cbd5e1; font-size: 12px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  font-size: 13px;
  color: #8fa1b8;
}
.footer-bottom a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}
.footer-bottom a:hover {
  color: #cbd5e1;
}
.footer-tagline {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-cities {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-cities li { line-height: 1.5; }
.footer-cities a {
  display: block;
  color: #cbd5e1;
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease;
}
.footer-cities a:hover { color: #4ca6ff; }
.footer-tagline span {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 2px;
  white-space: nowrap;
  color: #4ca6ff;
}
.footer-tagline span + span::before {
  content: '·';
  margin-right: 16px;
  font-size: 20px;
  font-weight: 700;
  color: rgba(76,166,255,0.55);
}
@media (max-width: 768px) {
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; gap: 10px; }
  .footer-tagline { flex-direction: column; gap: 8px; align-items: center; }
  .footer-tagline span + span::before { content: none; }
}

/* =============== Product detail =============== */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.detail-grid.reverse { direction: rtl; }
.detail-grid.reverse > * { direction: ltr; }
.detail-grid img.illustration {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.detail-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
}
.detail-grid h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.detail-grid p { color: var(--text-2); margin-bottom: 18px; }
.feature-list { margin: 20px 0 24px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-2);
  font-size: 14.5px;
}
.feature-list li::before {
  content: "✓";
  width: 22px; height: 22px;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 12px;
  flex-shrink: 0;
}

/* =============== Service card =============== */
.service-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-item {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
}
.service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-head {
  padding: 28px;
  background: linear-gradient(135deg, var(--brand-light) 0%, #fff 100%);
  border-bottom: 1px solid var(--border);
}
.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 22px;
  margin-bottom: 14px;
}
.service-head h3 { font-size: 19px; font-weight: 700; }
.service-body { padding: 24px 28px 28px; }
.service-body ul li {
  display: flex;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text-2);
}
.service-body ul li:last-child { border-bottom: none; }
.service-body ul li::before {
  content: "•";
  color: var(--brand);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}

/* =============== Case list =============== */
.case-filter {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.case-filter button {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--bg-2);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.case-filter button.active,
.case-filter button:hover {
  background: var(--brand);
  color: #fff;
}

/* =============== Contact =============== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-card {
  background: linear-gradient(135deg, #1677ff 0%, #0f5fcc 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.contact-card .sub { opacity: 0.85; margin-bottom: 28px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 18px; }
.contact-item .ic {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.16);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-item small { display: block; opacity: 0.7; font-size: 12px; }
.contact-item strong { font-size: 16px; }
.contact-form {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.contact-form h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.contact-form .sub { color: var(--text-3); font-size: 14px; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14.5px;
  font-family: inherit;
  background: var(--bg-2);
  transition: all var(--transition);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(22,119,255,0.12);
}
.field textarea { resize: vertical; min-height: 110px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-form .btn-primary {
  width: 100%;
  padding: 14px;
  font-size: 15px;
  margin-top: 6px;
}

/* =============== Responsive =============== */
@media (max-width: 1100px) {
  :root { --max-width: 960px; }
}
@media (max-width: 980px) {
  /* 保留电话按钮，仅隐藏"免费咨询"文字按钮，改用汉堡菜单 */
  .nav-links, .nav-cta .btn { display: none; }
  .nav-cta { display: flex; }
  .menu-toggle { display: block; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    gap: 4px;
    padding: 12px 24px 18px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav-links.open a {
    padding: 12px 8px;
    font-size: 16px;
    border-radius: 8px;
  }
  .hero-grid, .detail-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 48px; }
  .hero h1 { font-size: 34px; }
  .section-title h2, .cta h2 { font-size: 28px; }
  .product-grid, .feat-grid, .case-grid, .service-list { grid-template-columns: 1fr 1fr; }
  .flow-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
}
@media (max-width: 600px) {
  .product-grid, .feat-grid, .case-grid, .service-list, .flow-grid, .footer-grid, .field-row { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .section { padding: 52px 0; }
  .section-sm { padding: 40px 0; }
  .hero { padding: 56px 0 36px; }
  .hero h1 { font-size: 27px; letter-spacing: -0.5px; }
  .hero-sub { font-size: 15px; }
  .section-title { margin-bottom: 32px; }
  .section-title h2 { font-size: 23px; }
  .section-title p { font-size: 14px; }
  .cta { padding: 36px 22px; }
  .cta h2 { font-size: 23px; }
  .cta .btn { display: block; width: 100%; }
  .cta .btn-ghost { margin-left: 0; margin-top: 12px; }
  .detail-grid { gap: 32px; }
  .detail-grid.reverse { direction: ltr; }
  .contact-card { padding: 28px 22px; }
  .contact-form { padding: 26px 20px; }
  .compare-table { min-width: 640px; }
  .compare-table th, .compare-table td { padding: 12px 10px; font-size: 13px; }
  .page-header { padding: 56px 0 40px; }
  .page-header h1 { font-size: 28px; }
  .footer { padding: 48px 0 24px; }
  .footer-grid { gap: 28px; }
}
@media (max-width: 420px) {
  .logo span { display: none; }
  .logo { gap: 0; }
  .phone-pill { padding: 7px 10px; font-size: 13px; }
  .hero-stats { gap: 16px; }
  .hero-stat { flex: 1 1 40%; }
  .footer-bottom { flex-direction: column; }
}

/* 对比表首列在横滑时吸顶，方便手机端对照 */
.compare-table th:first-child,
.compare-table td:first-child {
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 2;
}
.compare-table thead th:first-child { background: var(--bg-2); }
.compare-table td:first-child { font-weight: 600; }

/* =============== FAQ =============== */
.faq-list { max-width: 880px; margin: 36px auto 0; }
.faq-item {
  background: #fff;
  border: 1px solid #eef1f6;
  border-radius: 14px;
  margin-bottom: 14px;
  transition: border-color .25s, box-shadow .25s;
}
.faq-item:hover { border-color: #cfe0ff; box-shadow: 0 10px 28px rgba(22,119,255,.08); }
.faq-item[open] { border-color: #cfe0ff; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 56px 18px 24px;
  position: relative;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: #16233a;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 24px;
  top: 16px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #eaf2ff;
  color: #1677ff;
  font-size: 18px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .25s, color .25s;
}
.faq-item[open] summary::after { content: '\2212'; background: #1677ff; color: #fff; }
.faq-item[open] summary { color: #1677ff; }
.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.9;
  color: #5b6678;
}
.faq-answer p { margin: 0; }
@media (max-width: 768px) {
  .faq-item summary { font-size: 15px; padding: 16px 50px 16px 18px; }
  .faq-item summary::after { right: 18px; top: 14px; }
  .faq-answer { font-size: 14px; padding: 0 18px 18px; }
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.show { opacity: 1; transform: translateY(0); }

/* ===== 友情链接（footer-links）===== */
.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
  color: #8fa1b8;
  padding: 0 0 18px;
}
.footer-links .fl-label {
  color: #8fa1b8;
}
.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color .2s ease;
}
.footer-links a:hover {
  color: #4ca6ff;
}