:root {
  --bg: #f3f7f7;
  --ink: #10282c;
  --ink-soft: #4b656a;
  --brand: #139a78;
  --brand-deep: #0b6f58;
  --accent: #ff8f4e;
  --paper: #ffffff;
  --line: #d7e3e5;
  --shadow: 0 10px 32px rgba(16, 40, 44, 0.08);
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 85% -20%, #defaf2 0%, rgba(222, 250, 242, 0) 72%),
    radial-gradient(900px 560px at -10% 10%, #ffe8dc 0%, rgba(255, 232, 220, 0) 70%),
    var(--bg);
  line-height: 1.65;
}

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

img {
  width: 100%;
  display: block;
  border-radius: 14px;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(243, 247, 247, 0.8);
  border-bottom: 1px solid rgba(215, 227, 229, 0.75);
}

.header-inner {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), #24c79a);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
}

.brand-name {
  font-family: "ZCOOL QingKe HuangYou", "Noto Sans SC", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.5px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.nav-link {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #1fb68d);
  box-shadow: 0 8px 22px rgba(19, 154, 120, 0.24);
}

.btn-secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  width: 42px;
  height: 42px;
}

main {
  min-height: calc(100vh - 180px);
}

.hero {
  padding: 62px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--brand-deep);
  background: #e4f8f1;
  border: 1px solid #bee8da;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero h1 {
  margin: 0;
  line-height: 1.2;
  font-size: clamp(1.9rem, 3.4vw, 3.2rem);
  letter-spacing: 0.3px;
}

.hero h1 .display {
  font-family: "ZCOOL QingKe HuangYou", "Noto Sans SC", sans-serif;
  color: var(--brand-deep);
  font-weight: 400;
}

.hero p {
  margin: 16px 0 22px;
  color: var(--ink-soft);
  max-width: 660px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 16px;
  font-size: 0.88rem;
  color: #5f7579;
}

.hero-panel,
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.kpis {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.kpi {
  background: linear-gradient(135deg, #f4fbf8, #ffffff);
  border: 1px solid #dcefed;
  border-radius: 12px;
  padding: 12px;
}

.kpi strong {
  display: block;
  font-size: 1.2rem;
  line-height: 1.2;
}

.kpi span {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.section {
  padding: 28px 0 46px;
}

.section-alt {
  padding: 42px 0;
}

.section-head {
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.2vw, 2.2rem);
}

.section-head p {
  margin: 8px 0 0;
  color: var(--ink-soft);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 20px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.list li::before {
  content: "•";
  margin-right: 8px;
  color: var(--accent);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.step {
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 12px;
  font-size: 0.9rem;
}

.step strong {
  display: block;
  color: var(--brand-deep);
  margin-bottom: 4px;
  font-size: 0.84rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid #cde4df;
  background: #f5fffc;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  color: #2f5e52;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
}

.metric strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1.2;
}

.metric span {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.screenshot-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px;
}

.screenshot-card p {
  margin: 8px 4px 2px;
  font-size: 0.84rem;
  color: #546d72;
}

.callout {
  border: 1px solid #ffd6bf;
  background: linear-gradient(135deg, #fff7f2, #ffffff);
  border-radius: 14px;
  padding: 12px;
  color: #7a4b2f;
  font-size: 0.9rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.table th,
.table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 0.9rem;
}

.table tr:last-child td {
  border-bottom: none;
}

.table th {
  background: #f2f8f9;
  color: #2f4f55;
}

.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
}

.faq-list p {
  color: var(--ink-soft);
  margin: 8px 0 0;
}

.cta-block {
  padding: 22px;
  border-radius: 20px;
  background: linear-gradient(120deg, #113b42, #1d656f);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.cta-block h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

.cta-block p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.82);
}

.cta-block .btn-secondary {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.site-footer {
  margin-top: 30px;
  padding: 26px 0 38px;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
}

.footer-title {
  margin: 0 0 8px;
  font-weight: 700;
}

.footer-text {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer-links {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: #30535a;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .hero-grid,
  .grid-3,
  .timeline,
  .metric-strip,
  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .container {
    width: min(var(--max), calc(100% - 24px));
  }

  .header-inner {
    height: 68px;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-wrap {
    position: fixed;
    inset: 68px 0 auto 0;
    background: rgba(243, 247, 247, 0.98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-110%);
    transition: transform 0.22s ease;
    padding: 12px;
  }

  .nav-wrap.is-open {
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav-actions {
    display: none;
  }

  .hero {
    padding-top: 38px;
  }

  .hero-grid,
  .grid-2,
  .grid-3,
  .timeline,
  .metric-strip,
  .screenshot-grid,
  .cta-block,
  .footer-grid,
  .kpis {
    grid-template-columns: 1fr;
  }

  .cta-block {
    text-align: left;
  }
}