@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Serif+SC:wght@600;700;900&display=swap');

:root {
  --bg: #f5f1ea;
  --bg-soft: #fbf8f3;
  --surface: #fffdf9;
  --surface-muted: #f2ece2;
  --line: rgba(26, 36, 54, 0.1);
  --text: #1a2436;
  --text-muted: #5f6875;
  --primary: #2557e6;
  --primary-soft: rgba(37, 87, 230, 0.08);
  --shadow: 0 16px 40px rgba(26, 36, 54, 0.06);
  --radius: 22px;
  --container: 1120px;
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(37, 87, 230, 0.05), transparent 220px),
    var(--bg);
  line-height: 1.7;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(26, 36, 54, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 36, 54, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 45%);
}

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

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 18px 0;
  background: rgba(245, 241, 234, 0.82);
  backdrop-filter: blur(14px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 12px;
}

.nav-logo span,
.hero h1,
.section-header h2,
.page-header h1 {
  font-family: 'Noto Serif SC', serif;
}

.nav-logo span {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.nav-drawer {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-menu a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform var(--transition),
    border-color var(--transition),
    background var(--transition);
}

.nav-cta,
.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.nav-cta:hover,
.btn:hover {
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  padding: 8px;
  cursor: pointer;
}

.hamburger span {
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.hero,
.section,
.page-header,
.blog-section {
  position: relative;
  z-index: 1;
}

.hero {
  padding: 56px 0 72px;
}

.hero-shell {
  display: grid;
}

.section-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: start;
}

.hero-copy,
.card,
.list-card,
.simple-panel,
.qr-panel,
.blog-card,
.blog-empty,
.blog-loading {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 42px;
  max-width: 860px;
}

.section-tag,
.list-label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
}

.hero h1 {
  margin-top: 18px;
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  line-height: 1.12;
  letter-spacing: -0.05em;
}

.hero-text,
.section-header p,
.card p,
.list-card p,
.simple-row span,
.contact-list,
.footer-text,
.blog-card-excerpt {
  color: var(--text-muted);
}

.hero-text {
  max-width: 28rem;
  margin-top: 18px;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.hero-metric {
  padding: 26px 18px 0;
}

.hero-metric + .hero-metric {
  border-left: 1px solid var(--line);
}

.hero-metric strong {
  display: block;
  font-size: 2rem;
  color: var(--primary);
}

.hero-metric span {
  display: block;
  margin-top: 8px;
  color: var(--text-muted);
}

.section {
  padding: 40px 0 72px;
}

.section-soft {
  background: rgba(255, 255, 255, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
}

.section-header {
  max-width: 36rem;
  margin-bottom: 28px;
}

.section-header h2,
.page-header h1 {
  margin-top: 16px;
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.section-header p,
.page-header p {
  margin-top: 12px;
  font-size: 1rem;
}

.compact-header {
  margin-bottom: 0;
}

.card-grid,
.article-list,
.contact-list {
  display: grid;
  gap: 18px;
}

.card-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-2,
.article-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.list-card,
.simple-panel,
.qr-panel {
  padding: 26px;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
}

.card h3,
.list-card h3 {
  margin-top: 18px;
  font-size: 1.24rem;
  line-height: 1.45;
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
}

.simple-panel {
  display: grid;
  gap: 18px;
}

.simple-row {
  display: grid;
  gap: 6px;
}

.simple-row strong {
  font-size: 1rem;
}

.contact-list {
  margin-top: 22px;
  gap: 10px;
}

.qr-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.qr-item img {
  width: 100%;
  border-radius: 16px;
}

.qr-item p {
  margin-top: 10px;
  text-align: center;
  color: var(--text-muted);
}

.page-header {
  padding: 56px 0 18px;
}

.page-header .container {
  text-align: center;
}

.page-header .section-tag {
  margin: 0 auto;
}

.blog-section {
  padding: 28px 0 78px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.blog-card {
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-2px);
}

.blog-card-image {
  min-height: 160px;
  background: linear-gradient(135deg, #2f5fd8, #5d8ff8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.blog-card-image i {
  font-size: 2rem;
}

.blog-card-image img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.blog-card-content {
  padding: 22px;
}

.blog-card-meta,
.blog-card-footer,
.blog-card-author {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.blog-card-meta {
  color: var(--text-muted);
  font-size: 0.86rem;
}

.blog-card-title {
  margin-top: 12px;
  font-size: 1.14rem;
  line-height: 1.45;
}

.blog-card-excerpt {
  margin-top: 12px;
}

.blog-card-footer {
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.blog-card-author,
.blog-card-read-more {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.blog-card-read-more {
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
}

.blog-empty,
.blog-loading {
  grid-column: 1 / -1;
  padding: 38px;
  text-align: center;
}

.blog-empty i,
.blog-loading i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 14px;
}

.retry-btn {
  margin-top: 18px;
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

.footer {
  padding: 56px 0 28px;
  background: #152034;
  color: #fff;
}

.footer-shell {
  display: grid;
  gap: 22px;
}

.footer-text {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p,
.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

@media (max-width: 920px) {
  .section-split,
  .card-grid-3,
  .card-grid-2,
  .article-list,
  .qr-panel,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-metric + .hero-metric {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 840px) {
  .navbar {
    padding: 14px 0;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.is-active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-drawer {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 18px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .nav-drawer.is-open {
    display: flex;
  }

  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .nav-menu a {
    min-height: 38px;
  }

  .nav-menu a::after {
    left: 0;
    right: auto;
    width: 100%;
    bottom: 2px;
  }

  .nav-cta {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 20px));
  }

  .nav-logo span {
    font-size: 1.6rem;
  }

  .hero-copy,
  .card,
  .list-card,
  .simple-panel,
  .qr-panel,
  .blog-card-content {
    padding: 20px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-actions,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn,
  .nav-cta {
    width: 100%;
  }
}