/* 重庆平小云网络科技有限公司 官网 */
:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --ink: #0f1b2d;
  --ink-2: #4a5568;
  --ink-3: #8a94a6;
  --line: #e6eaf2;
  --brand: #1d5bd8;
  --brand-2: #0ea5e9;
  --brand-soft: #eaf1ff;
  --navy: #0b1a33;
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', 'Helvetica Neue',
    Arial, sans-serif;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶栏：左上角公司名称 */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  flex: none;
  width: 34px;
  height: 34px;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav {
  display: flex;
  gap: 4px;
}

.nav a {
  padding: 6px 14px;
  border-radius: 8px;
  color: var(--ink-2);
  font-size: 15px;
}

.nav a:hover,
.nav a.active {
  color: var(--brand);
  background: var(--brand-soft);
}

/* 首屏 */
.hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(ellipse 60% 70% at 85% 0%, rgba(14, 165, 233, 0.14), transparent 60%),
    radial-gradient(ellipse 50% 60% at 0% 100%, rgba(29, 91, 216, 0.1), transparent 60%),
    var(--bg-soft);
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 70% at 50% 40%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 40%, #000, transparent 75%);
  opacity: 0.6;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid #cfdcf7;
  border-radius: 999px;
  background: #fff;
  color: var(--brand);
  font-size: 14px;
  font-weight: 600;
}

.hero h1 {
  max-width: 760px;
  margin-top: 20px;
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  max-width: 640px;
  margin-top: 20px;
  color: var(--ink-2);
  font-size: 18px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: #164bb5;
}

.btn-ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
}

.stat {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.8);
}

.stat b {
  display: block;
  font-size: 17px;
}

.stat span {
  color: var(--ink-3);
  font-size: 14px;
}

/* 通用段落 */
.section {
  padding: 88px 0;
}

.section-soft {
  background: var(--bg-soft);
}

.section-head {
  max-width: 680px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 800;
}

.section-head p {
  margin-top: 12px;
  color: var(--ink-2);
}

/* 业务范围 */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service {
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition:
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

.service:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(15, 27, 45, 0.08);
}

.service .ico {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}

.service .ico svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service h3 {
  margin-top: 18px;
  font-size: 19px;
}

.service p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 15px;
}

.service ul {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 14px;
}

.service li {
  position: relative;
  padding-left: 14px;
}

.service li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand);
}

/* 流程 */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: s;
}

.step {
  padding: 24px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
}

.step::before {
  counter-increment: s;
  content: '0' counter(s);
  color: var(--brand);
  font-size: 22px;
  font-weight: 800;
}

.step h3 {
  margin-top: 8px;
  font-size: 17px;
}

.step p {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 14.5px;
}

/* 关于 */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text h2 {
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 800;
}

.about-text p {
  margin-top: 16px;
  color: var(--ink-2);
}

.info-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.info-card h3 {
  font-size: 17px;
}

.info-card dl {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px 8px;
  margin: 18px 0 0;
  font-size: 15px;
}

.info-card dt {
  color: var(--ink-3);
}

.info-card dd {
  margin: 0;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.value {
  padding: 26px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
}

.value h3 {
  font-size: 18px;
}

.value p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 15px;
}

/* 页头（关于页） */
.page-head {
  padding: 72px 0 56px;
  background:
    radial-gradient(ellipse 60% 80% at 90% 0%, rgba(14, 165, 233, 0.14), transparent 60%),
    var(--bg-soft);
}

.page-head h1 {
  font-size: clamp(30px, 4.4vw, 44px);
  font-weight: 800;
}

.page-head p {
  max-width: 640px;
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 17px;
}

/* 页脚：地址与联系方式 */
.footer {
  padding: 56px 0 28px;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.78);
  font-size: 14.5px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
}

.footer h4 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 16px;
}

.footer .brand-name {
  color: #fff;
}

.footer p {
  margin-top: 12px;
}

.contact li {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.contact li span:first-child {
  flex: none;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links a {
  display: block;
  margin-top: 10px;
}

.footer-links a:hover {
  color: #fff;
}

.copyright {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

/* 响应式 */
@media (max-width: 900px) {
  .services,
  .values {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps,
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .header-inner {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 12px 0 8px;
  }

  .nav {
    margin-left: -10px;
  }

  .nav a {
    padding: 4px 10px;
    font-size: 14px;
  }

  .brand-name {
    font-size: 16px;
  }

  .hero {
    padding: 56px 0;
  }

  .hero p {
    font-size: 16px;
  }

  .section {
    padding: 64px 0;
  }

  .services,
  .values,
  .steps {
    grid-template-columns: 1fr;
  }

  .info-card dl {
    grid-template-columns: 72px 1fr;
  }
}

/* 隐私政策等长文页 */
.doc {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 24px 88px;
  color: var(--ink-2);
  font-size: 15.5px;
}

.doc .meta {
  color: var(--ink-3);
  font-size: 14px;
}

.doc h2 {
  margin: 40px 0 12px;
  color: var(--ink);
  font-size: 21px;
}

.doc h3 {
  margin: 22px 0 8px;
  color: var(--ink);
  font-size: 17px;
}

.doc p,
.doc li {
  margin-top: 8px;
}

.doc ul {
  padding-left: 1.2em;
  list-style: disc;
}

.doc b {
  color: var(--ink);
}

.doc a {
  color: var(--brand);
}

.doc .toc {
  margin-top: 24px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-soft);
  list-style: decimal;
  padding-left: 2.6em;
}

@media (max-width: 640px) {
  .doc {
    padding: 40px 16px 64px;
  }
}