:root {
  --primary: #ffc107;
  --primary-dark: #ffa000;
  --primary-deeper: #ff8f00;
  --bg-start: #fffde7;
  --bg-mid: #fff9c4;
  --text-primary: #212121;
  --text-secondary: #5d4037;
  --muted: #75665b;
  --line: rgba(255, 193, 7, 0.32);
  --card: rgba(255, 255, 255, 0.9);
  --shadow: 0 12px 40px rgba(255, 193, 7, 0.22);
  --shadow-strong: 0 18px 54px rgba(255, 160, 0, 0.24);
  --radius: 8px;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: linear-gradient(135deg, var(--bg-start), var(--bg-mid) 46%, #ffffff 100%);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

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

.honeycomb-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 7% 74%, rgba(93, 64, 55, 0.08) 0 110px, transparent 111px),
    radial-gradient(circle at 90% 18%, rgba(93, 64, 55, 0.08) 0 150px, transparent 151px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='42' viewBox='0 0 72 42'%3E%3Cpath d='M18 1 35 10.5v20L18 40 1 30.5v-20L18 1Zm36 0 17 9.5v20L54 40l-17-9.5v-20L54 1Z' fill='none' stroke='%23ffffff' stroke-opacity='.38' stroke-width='2'/%3E%3C/svg%3E");
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  padding: 14px 0;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
}

.bee-mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(255, 193, 7, 0.34);
}

.bee-body {
  position: relative;
  z-index: 2;
  width: 22px;
  height: 15px;
  border-radius: 50% 44% 44% 50%;
  background: repeating-linear-gradient(90deg, #212121 0 4px, var(--primary) 4px 9px);
  transform: rotate(-18deg);
}

.bee-body::after {
  position: absolute;
  top: 2px;
  right: -5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #212121;
  content: "";
}

.bee-wing {
  position: absolute;
  width: 16px;
  height: 22px;
  border: 2px solid rgba(255, 160, 0, 0.58);
  border-radius: 60% 60% 45% 45%;
  background: rgba(255, 255, 255, 0.78);
}

.bee-wing-left {
  top: 8px;
  left: 12px;
  transform: rotate(-42deg);
}

.bee-wing-right {
  top: 8px;
  right: 10px;
  transform: rotate(35deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
}

.site-nav a {
  white-space: nowrap;
}

.nav-login {
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-primary);
}

.section-band,
.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: 36px;
  align-items: center;
  min-height: calc(100vh - 96px);
  padding: 44px 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-deeper);
  font-size: 14px;
  font-weight: 800;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  color: var(--text-primary);
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
}

.hero-copy {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 8px 22px rgba(255, 160, 0, 0.36);
  color: #212121;
}

.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  color: var(--text-secondary);
}

.hero-panel,
.value-grid article,
.library-card,
.process-list li,
.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-panel {
  position: relative;
  padding: 30px;
  overflow: hidden;
}

.hero-panel::before {
  position: absolute;
  inset: auto -60px -80px auto;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: rgba(255, 193, 7, 0.16);
  content: "";
}

.panel-topline {
  width: 64px;
  height: 4px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), #212121);
}

.hero-panel h2 {
  margin: 0 0 24px;
  font-size: 26px;
}

.metric-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric-grid div {
  min-height: 104px;
  padding: 18px;
  border-radius: var(--radius);
  background: rgba(255, 253, 231, 0.76);
}

.metric-grid strong,
.metric-grid span {
  display: block;
}

.metric-grid strong {
  margin-bottom: 8px;
  font-size: 24px;
}

.metric-grid span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.section {
  padding: 72px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading h2 {
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.24;
}

.value-grid,
.library-grid {
  display: grid;
  gap: 18px;
}

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

.value-grid article,
.library-card {
  padding: 24px;
}

.icon-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #212121;
  font-size: 13px;
  font-weight: 900;
}

.value-grid h3,
.library-card h3,
.process-list h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.value-grid p,
.library-card p,
.process-list p,
.faq p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

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

.library-card {
  min-height: 178px;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.library-card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-2px);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.process-list li {
  display: flex;
  gap: 16px;
  min-height: 190px;
  padding: 22px;
}

.process-list span {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #212121;
  color: var(--primary);
  font-weight: 900;
}

.audience-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.audience-row span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 74px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 8px 28px rgba(255, 193, 7, 0.16);
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq details {
  padding: 0 22px;
}

.faq summary {
  cursor: pointer;
  padding: 20px 0;
  font-size: 18px;
  font-weight: 800;
}

.faq details p {
  padding: 0 0 20px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--text-secondary);
  font-size: 14px;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-footer strong {
  color: var(--text-primary);
}

.site-footer a {
  white-space: nowrap;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .site-nav {
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 36px;
  }

  .value-grid,
  .library-grid,
  .process-list,
  .audience-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header,
  .section-band,
  .section,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .brand {
    font-size: 20px;
  }

  .site-nav {
    font-size: 14px;
  }

  .hero {
    padding-bottom: 44px;
  }

  .hero h1 {
    font-size: 36px;
  }

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

  .hero-actions,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .hero-panel {
    padding: 22px;
  }

  .metric-grid,
  .value-grid,
  .library-grid,
  .process-list,
  .audience-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .process-list li {
    min-height: 0;
  }

  .site-footer {
    text-align: center;
  }
}