:root {
  --ink: #102d34;
  --muted: #64777d;
  --brand: #0a6e67;
  --brand-dark: #073d42;
  --mint: #78dfbd;
  --amber: #d6932c;
  --paper: #ffffff;
  --soft: #eef7f3;
  --line: #d9e7e4;
  --danger: #c7473f;
  --shadow: 0 24px 70px rgba(7, 66, 66, 0.13);
  --radius-lg: 30px;
  --radius-md: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 8% 4%, rgba(120, 223, 189, 0.26), transparent 27%),
    radial-gradient(circle at 92% 8%, rgba(214, 147, 44, 0.15), transparent 25%),
    linear-gradient(180deg, #f6fbf8 0%, #eef6f3 48%, #fff8ec 100%);
}

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

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 231, 228, 0.72);
  background: rgba(247, 252, 249, 0.82);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  width: min(1180px, calc(100% - 36px));
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 950;
}

.brand-logo {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 15px;
  color: #073c3f;
  background: linear-gradient(135deg, #b8f7df, #70debe);
  box-shadow: 0 10px 28px rgba(112, 222, 190, 0.26);
}

.brand-text {
  display: grid;
  line-height: 1.16;
}

.brand-cn {
  font-size: 17px;
  letter-spacing: -0.02em;
}

.brand-en {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 999px;
  color: #315158;
  font-size: 14px;
  font-weight: 800;
}

.nav-links a:hover {
  color: var(--brand);
  background: rgba(10, 110, 103, 0.08);
}

.nav-toggle {
  display: none;
  border: 0;
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--brand-dark);
  background: #e7f5f1;
  font: inherit;
  font-weight: 900;
}

.page {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 34px 0 64px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 26px;
  align-items: stretch;
  margin-top: 24px;
  padding: 34px;
  border-radius: 38px;
  color: #ffffff;
  background:
    radial-gradient(circle at 85% 20%, rgba(120, 223, 189, 0.18), transparent 28%),
    linear-gradient(135deg, #073d42, #0a675f 72%, #0b4b50);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  right: -110px;
  top: -120px;
  width: 360px;
  height: 360px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

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

.eyebrow {
  color: #b8f7df;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.legal-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.hero p,
.legal-hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 16px;
  font-weight: 950;
}

.btn-primary {
  color: #073c3f;
  background: linear-gradient(135deg, #b8f7df, #70debe);
}

.btn-ghost {
  color: #e7fff8;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
}

.btn-light {
  color: var(--brand);
  background: #edf7f4;
}

.hero-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
}

.metric strong {
  display: block;
  font-size: 28px;
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.45;
}

.section {
  margin-top: 26px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
}

.section-kicker {
  color: var(--brand);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.16em;
}

.section-title {
  margin: 8px 0 0;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.section-desc {
  max-width: 660px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.grid-3,
.grid-4,
.grid-2 {
  display: grid;
  gap: 16px;
}

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

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card {
  padding: 22px;
  border: 1px solid rgba(151, 184, 178, 0.42);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 14px 40px rgba(13, 86, 83, 0.08);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.product-card {
  min-height: 270px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  position: relative;
}

.product-card::after {
  content: "";
  position: absolute;
  right: -42px;
  bottom: -42px;
  width: 130px;
  height: 130px;
  border-radius: 999px;
  background: rgba(120, 223, 189, 0.22);
}

.product-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 18px;
  color: var(--brand-dark);
  background: #dff8ee;
  font-size: 24px;
  font-weight: 950;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--brand);
  background: #e5f6f1;
  font-size: 12px;
  font-weight: 850;
}

.process {
  counter-reset: step;
}

.process .card {
  position: relative;
  padding-top: 58px;
}

.process .card::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 18px;
  left: 22px;
  color: var(--amber);
  font-size: 18px;
  font-weight: 950;
}

.feature-band,
.cta-band,
.legal-hero {
  padding: 30px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 48px rgba(13, 86, 83, 0.08);
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 20px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 14px 16px;
  border: 1px solid #dfece8;
  border-radius: 16px;
  background: #f8fbfa;
  color: #315158;
  line-height: 1.65;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 10px;
  border-radius: 999px;
  background: var(--mint);
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 92% 10%, rgba(255, 255, 255, 0.16), transparent 30%),
    linear-gradient(135deg, #09383d, #0a6e67);
}

.cta-band h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 42px);
  letter-spacing: -0.04em;
}

.cta-band p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.75;
}

.legal-hero {
  color: #fff;
  background:
    radial-gradient(circle at 88% 8%, rgba(120, 223, 189, 0.16), transparent 30%),
    linear-gradient(135deg, #073d42, #0a675f);
}

.legal-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  margin-top: 22px;
}

.legal-toc {
  position: sticky;
  top: 92px;
  padding: 18px;
  border: 1px solid rgba(151, 184, 178, 0.42);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
}

.legal-toc a {
  display: block;
  padding: 9px 10px;
  border-radius: 12px;
  color: #315158;
  font-size: 14px;
  font-weight: 800;
}

.legal-toc a:hover {
  color: var(--brand);
  background: #edf7f4;
}

.legal-content {
  padding: 30px;
  border: 1px solid rgba(151, 184, 178, 0.42);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 44px rgba(13, 86, 83, 0.08);
}

.legal-content h2 {
  margin: 30px 0 12px;
  padding-top: 8px;
  color: var(--brand-dark);
  font-size: 26px;
  letter-spacing: -0.03em;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  margin: 22px 0 8px;
  color: #193d45;
}

.legal-content p,
.legal-content li {
  color: #425a61;
  line-height: 1.85;
}

.legal-content ul,
.legal-content ol {
  padding-left: 22px;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  overflow: hidden;
  border-radius: 16px;
}

.legal-table th,
.legal-table td {
  padding: 13px 14px;
  border: 1px solid #dfece8;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.legal-table th {
  color: var(--brand-dark);
  background: #eef8f5;
}

.notice {
  padding: 16px;
  border-left: 5px solid var(--amber);
  border-radius: 14px;
  background: #fff6e8;
  color: #775011;
}

.site-footer {
  margin-top: 40px;
  border-top: 1px solid rgba(151, 184, 178, 0.42);
  background: rgba(255, 255, 255, 0.62);
}

.footer-inner {
  display: grid;
  width: min(1180px, calc(100% - 36px));
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 24px;
  margin: 0 auto;
  padding: 30px 0;
}

.footer-inner p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.footer-links a {
  color: #315158;
  font-weight: 800;
}

.beian {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 14px 0 26px;
  color: #789096;
  font-size: 13px;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    padding: 14px 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 18px;
    right: 18px;
    top: 68px;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .hero,
  .feature-band,
  .cta-band,
  .footer-inner,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .grid-4,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 26px;
  }

  .section-head {
    display: block;
  }

  .legal-toc {
    position: static;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .page {
    width: min(100% - 24px, 1180px);
    padding-top: 22px;
  }

  .hero,
  .feature-band,
  .cta-band,
  .legal-content,
  .legal-hero {
    padding: 22px;
    border-radius: 24px;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }
}