:root {
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --color-bg: #f3fbf8;
  --color-text: #06261f;
  --color-muted: #466760;
  --color-primary: #00b874;
  --color-primary-strong: #009f86;
  --color-primary-dark: #00755d;
  --color-accent: #00d7a1;
  --color-surface: #ffffff;
  --color-surface-soft: #ecf8f3;
  --color-border: rgba(4, 77, 60, 0.15);
  --gradient-main: linear-gradient(135deg, #00c071 0%, #00c79a 42%, #00a9bf 100%);
  --gradient-hero-glow: radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.38), transparent 50%),
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.24), transparent 40%),
    linear-gradient(145deg, #00b86a 0%, #00c89a 40%, #00a9c6 100%);
  --shadow-soft: 0 18px 44px rgba(0, 76, 58, 0.13);
  --shadow-card: 0 12px 32px rgba(0, 70, 54, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1160px;
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

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

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(243, 251, 248, 0.86);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.brand svg {
  width: 24px;
  height: 24px;
}

.brand:hover {
  opacity: 0.9;
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.hamburger {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #fff;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  position: relative;
  transition: transform var(--transition), background var(--transition);
}

.hamburger span::before,
.hamburger span::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  left: 0;
  transition: transform var(--transition), top var(--transition), bottom var(--transition);
}

.hamburger span::before {
  top: -6px;
}

.hamburger span::after {
  bottom: -6px;
}

.nav-links {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  left: 0;
  display: grid;
  gap: 0.6rem;
  padding: 0.9rem;
  background: rgba(255, 255, 255, 0.98);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity var(--transition), transform var(--transition);
}

.nav-links a {
  font-weight: 600;
  font-size: 0.96rem;
  border-radius: 10px;
  padding: 0.68rem 0.8rem;
}

.nav-links a:not(.btn-primary):hover {
  background: var(--color-surface-soft);
}

.nav-toggle:checked ~ .nav-links {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-toggle:checked + .hamburger span {
  background: transparent;
}

.nav-toggle:checked + .hamburger span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle:checked + .hamburger span::after {
  bottom: 0;
  transform: rotate(-45deg);
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: var(--gradient-main);
  color: #ffffff;
  padding: 0.78rem 1.24rem;
  box-shadow: 0 10px 24px rgba(0, 132, 99, 0.24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 132, 99, 0.28);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-primary-dark);
  border: 1px solid rgba(0, 117, 93, 0.25);
  padding: 0.72rem 1.08rem;
}

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

.hero {
  min-height: 100svh;
  color: #ffffff;
  background: var(--gradient-hero-glow);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  filter: blur(4px);
}

.hero::before {
  width: 340px;
  height: 340px;
  border-radius: 50%;
  top: -90px;
  left: -80px;
  background: rgba(255, 255, 255, 0.13);
}

.hero::after {
  width: 420px;
  height: 420px;
  border-radius: 38%;
  right: -140px;
  bottom: -160px;
  background: rgba(255, 255, 255, 0.12);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 6.6rem 0 4.6rem;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.34rem 0.78rem;
  border-radius: 999px;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  background: rgba(255, 255, 255, 0.2);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 6vw, 4.25rem);
  max-width: 15ch;
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.hero p {
  max-width: 58ch;
  font-size: clamp(1rem, 2.6vw, 1.25rem);
  color: rgba(255, 255, 255, 0.93);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.platform-links {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.platform-links a {
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.42rem 0.8rem;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.platform-links a:hover {
  background: rgba(0, 0, 0, 0.28);
}

main {
  overflow: clip;
}

.section {
  padding: 4.8rem 0;
}

.section-title {
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  margin-bottom: 0.85rem;
}

.section-intro {
  color: var(--color-muted);
  max-width: 62ch;
}

.skewed-section {
  position: relative;
  isolation: isolate;
}

.skewed-section::before {
  content: "";
  position: absolute;
  inset: 1.5rem 0;
  z-index: -1;
  transform: skewY(-3.5deg);
  transform-origin: 0;
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.cards-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-card);
}

.card h3 {
  font-size: 1.2rem;
  margin: 0.7rem 0 0.65rem;
}

.card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, rgba(0, 184, 116, 0.2), rgba(0, 169, 191, 0.18));
}

.steps {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.step {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
  padding: 1.2rem;
}

.step strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  color: #fff;
  background: var(--gradient-main);
  margin-right: 0.6rem;
}

.blog-hero,
.article-hero {
  background: linear-gradient(170deg, #e4faf2 0%, #dcf6f5 40%, #d9f3ff 100%);
  padding: 4.6rem 0 3.2rem;
}

.blog-list {
  padding: 2.6rem 0 5rem;
}

.article-card {
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  padding: 1.45rem;
  margin-bottom: 1.1rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 34px rgba(0, 76, 58, 0.16);
  border-color: rgba(0, 144, 112, 0.35);
}

.article-date {
  font-size: 0.9rem;
  color: #1e7862;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.article-meta {
  color: #1e7862;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.article-card h3 {
  margin-bottom: 0.55rem;
}

.article-card p {
  color: var(--color-muted);
  margin-bottom: 0;
}

.article-shell {
  padding: 2.4rem 0 5rem;
}

.article-body {
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: clamp(1.25rem, 4vw, 2.8rem);
}

.article-body h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 1rem;
}

.article-body h2 {
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
}

.article-body p,
.article-body li {
  font-size: 1.03rem;
  color: #114438;
}

.article-body ul {
  margin: 0.4rem 0 1.2rem;
  padding-left: 1.1rem;
}

.cta-card {
  margin: 1.4rem 0 2rem;
  border-radius: var(--radius-lg);
  padding: 1.3rem;
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 16px 32px rgba(0, 109, 86, 0.3);
}

.cta-card h3 {
  margin-bottom: 0.4rem;
}

.cta-card p {
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 0.9rem;
}

.cta-card .btn-secondary {
  border: none;
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--color-border);
  background: #e6f7f2;
  padding: 2.2rem 0;
}

.footer-grid {
  display: grid;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.footer-links a {
  font-weight: 600;
  color: #0f5e4b;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-email {
  display: inline-flex;
  color: #0a7b61;
  font-weight: 700;
  margin-top: 0.25rem;
}

.pagination {
  margin-top: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 0.45rem 0.85rem;
  font-weight: 700;
  color: #0f5e4b;
}

.pagination a:hover {
  border-color: rgba(0, 144, 112, 0.45);
}

.pagination .active {
  color: #fff;
  border-color: transparent;
  background: var(--gradient-main);
}

@media (min-width: 720px) {
  .cards-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1.5fr auto;
    align-items: start;
  }
}

@media (min-width: 920px) {
  .hamburger {
    display: none;
  }

  .nav-links {
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    padding: 0;
    border: none;
    box-shadow: none;
    background: transparent;
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }

  .nav-links a {
    padding: 0.58rem 0.85rem;
  }

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

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