/* ============================================================
   风控保信息技术（济南）有限公司 — 官网样式
   品牌色：蓝 #2563eb · 深蓝 #14213d · 翠绿 #10b981
   ============================================================ */

:root {
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-deep: #14213d;
  --brand-emerald: #10b981;
  --brand-light: #eef4ff;
  --ink: #1e293b;
  --ink-muted: #64748b;
  --line: #e6ebf3;
  --canvas: #f7f9fc;
  --card: #ffffff;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 4px 20px rgba(20, 33, 61, 0.06);
  --shadow-lift: 0 12px 32px rgba(20, 33, 61, 0.12);
  --grad-brand: linear-gradient(135deg, #14213d 0%, #2563eb 100%);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  color: var(--brand-dark);
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.3;
  color: var(--ink);
}

p {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 19px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 1px;
}
.brand:hover {
  color: var(--ink);
}
.brand__logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--grad-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
}
.brand__logo-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: contain;
  background: #fff;
  flex-shrink: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-muted);
  transition: color 0.15s, background 0.15s;
}
.nav a:hover {
  color: var(--brand);
  background: var(--brand-light);
}
.nav a.active {
  color: var(--brand);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--ink);
  padding: 6px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255, 255, 255, 0.72);
  padding: 56px 0 28px;
  margin-top: 72px;
}
.site-footer--home {
  margin-top: 0;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.72);
}
.site-footer a:hover {
  color: #fff;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}
.site-footer__brand {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 14px;
}
.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer li {
  margin-bottom: 10px;
  font-size: 14px;
}
.site-footer__copy {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  margin-top: 40px;
  padding-top: 20px;
  font-size: 13px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--grad-brand);
  color: #fff;
  padding: 88px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.14), transparent 70%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
}
.hero__eyebrow {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero h1 {
  color: #fff;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 18px;
  max-width: 720px;
}
.hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.86);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn--primary {
  background: #fff;
  color: var(--brand);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.22);
}
.btn--solid {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-lift);
}
.btn--solid:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
}

/* ---------- 区块 ---------- */
.section {
  padding: 72px 0;
}
.section--alt {
  background: #fff;
}
.section__head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section__eyebrow {
  color: var(--brand);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section__head h2 {
  font-size: 32px;
  font-weight: 800;
}
.section__head p {
  color: var(--ink-muted);
  font-size: 16px;
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}
.card h3 {
  font-size: 19px;
}
.card p {
  color: var(--ink-muted);
  font-size: 14px;
  margin-bottom: 0;
}

/* ---------- 图标 ---------- */
.icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  background: var(--brand-light);
  color: var(--brand);
}
.icon-box svg {
  width: 26px;
  height: 26px;
}
.icon-box--green {
  background: #e7f8f1;
  color: var(--brand-emerald);
}
.icon-box--amber {
  background: #fef4e6;
  color: #f59e0b;
}
.icon-box--violet {
  background: #f1eefc;
  color: #7c5ce7;
}

/* ---------- 网格 ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ---------- 产品卡片 ---------- */
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card__body {
  padding: 30px;
  flex: 1;
}
.product-card__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-light);
  padding: 3px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}
.product-card h3 {
  font-size: 22px;
}
.product-card p {
  color: var(--ink-muted);
  font-size: 14px;
}
.product-card__features {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}
.product-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--ink);
}
.product-card__features .check {
  color: var(--brand-emerald);
  font-weight: 700;
  flex-shrink: 0;
}

/* ---------- 特性列表（功能） ---------- */
.feature-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

/* ---------- 统计条 ---------- */
.stat-band {
  background: var(--brand-deep);
  color: #fff;
  padding: 56px 0;
}
.stat-band__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-band__num {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
}
.stat-band__label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}

/* ---------- 公司信息卡片 ---------- */
.info-list {
  margin: 0;
  padding: 0;
}
.info-list__row {
  display: flex;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.info-list__row:last-child {
  border-bottom: none;
}
.info-list__row dt {
  width: 120px;
  flex-shrink: 0;
  font-size: 14px;
  color: var(--ink-muted);
}
.info-list__row dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}

/* ---------- 面包屑 / 页头 ---------- */
.page-head {
  background: var(--grad-brand);
  color: #fff;
  padding: 56px 0 60px;
}
.page-head h1 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 10px;
}
.page-head p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  margin-bottom: 0;
  max-width: 680px;
}

/* ---------- 经营范围标签 ---------- */
.scope-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.scope-tag {
  background: var(--brand-light);
  color: var(--brand-dark);
  border: 1px solid #dbe6fb;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
}

/* ---------- 联系卡 ---------- */
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

/* ---------- 页内跳转锚点 ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero h1 { font-size: 32px; }
  .section__head h2 { font-size: 26px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .stat-band__grid { grid-template-columns: repeat(2, 1fr); }
  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lift);
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; }
  .nav-toggle { display: block; }
}

@media (max-width: 600px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 72px; }
  .hero h1 { font-size: 27px; }
  .section { padding: 52px 0; }
}