:root {
  --bg: #fbfaf6;
  --paper: #ffffff;
  --paper-soft: #f4f7f2;
  --ink: #1f2428;
  --muted: #5f6b63;
  --line: #dfe5dc;
  --green: #2f9d68;
  --green-deep: #1d754d;
  --yellow: #f3c94d;
  --coral: #ed7a5f;
  --blue: #4e7ba7;
  --shadow: 0 24px 70px rgba(34, 43, 38, 0.16);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

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

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(251, 250, 246, 0.82);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 40px, var(--max));
  height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: block;
  object-fit: cover;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.42), 0 8px 20px rgba(31, 36, 40, 0.1);
}

.brand-name {
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #344039;
  font-size: 14px;
}

.nav-links a:hover {
  color: var(--green-deep);
}

.nav-cta {
  min-width: 112px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #f4efe3;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 28%, rgba(243, 201, 77, 0.22), transparent 28%),
    linear-gradient(90deg, rgba(251, 250, 246, 0.98) 0%, rgba(251, 250, 246, 0.88) 46%, rgba(251, 250, 246, 0.52) 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding-top: 84px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 56px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid rgba(47, 157, 104, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--green-deep);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin: 22px 0 14px;
  max-width: 520px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 570px;
  margin: 0;
  color: #37443c;
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.2;
}

.button-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 14px 36px rgba(47, 157, 104, 0.24);
}

.button-secondary {
  border-color: rgba(31, 36, 40, 0.18);
  background: rgba(255, 255, 255, 0.76);
}

.hero-note {
  max-width: 560px;
  margin-top: 22px;
  color: #657269;
  font-size: 14px;
}

.hero-visual {
  width: clamp(320px, 24vw, 380px);
  aspect-ratio: 1080 / 1920;
  display: grid;
  place-items: center;
  justify-self: end;
  padding: 0;
  border: 0;
  background: transparent;
}

.hero-screenshot {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  object-fit: contain;
  object-position: center;
  box-shadow: 0 28px 64px rgba(31, 36, 40, 0.14);
}

.section {
  padding: 88px 0;
}

.section.alt {
  background: #f0f5ef;
}

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

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--green-deep);
  font-size: 14px;
  font-weight: 800;
}

.section-title {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section-copy {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.proof-grid,
.feature-grid,
.audience-grid,
.article-grid,
.faq-grid {
  display: grid;
  gap: 16px;
}

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

.proof-item,
.feature-card,
.audience-card,
.article-card,
.faq-item,
.placeholder-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 10px 30px rgba(34, 43, 38, 0.06);
}

.proof-item {
  padding: 18px;
}

.proof-number {
  display: block;
  color: var(--green-deep);
  font-size: 26px;
  font-weight: 900;
}

.proof-label {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.feature-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.feature-card {
  min-height: 210px;
  padding: 22px;
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  font-weight: 900;
}

.feature-icon.green { background: var(--green); }
.feature-icon.yellow { background: var(--yellow); color: #473a0b; }
.feature-icon.coral { background: var(--coral); }
.feature-icon.blue { background: var(--blue); }
.feature-icon.ink { background: var(--ink); }

.feature-card h3,
.audience-card h3,
.article-card h3,
.faq-item h3 {
  margin: 18px 0 8px;
  font-size: 18px;
  line-height: 1.3;
}

.feature-card p,
.audience-card p,
.article-card p,
.faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

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

.audience-card {
  padding: 22px;
}

.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: #f7faf5;
  color: #2d3932;
  font-size: 14px;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

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

.article-card {
  min-height: 230px;
  display: flex;
  flex-direction: column;
  padding: 22px;
}

.article-tag {
  width: fit-content;
  border-radius: 999px;
  background: #f3f6ee;
  color: var(--green-deep);
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 800;
}

.article-link {
  margin-top: auto;
  padding-top: 22px;
  color: var(--green-deep);
  font-weight: 800;
}

.placeholder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: 18px;
}

.placeholder-panel {
  min-height: 330px;
  display: grid;
  place-items: center;
  padding: 24px;
  color: #778178;
  text-align: center;
}

.screenshot-panel {
  text-align: left;
}

.screenshot-showcase {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 20px;
  align-items: center;
}

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

.screenshot-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid rgba(31, 36, 40, 0.08);
  background: #fff;
  box-shadow: 0 18px 40px rgba(31, 36, 40, 0.08);
}

.screenshot-card img {
  width: 100%;
  display: block;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top center;
}

.screenshot-card figcaption {
  padding: 10px 12px;
  color: #4a564d;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}

.mini-program-qr {
  width: min(190px, 100%);
  aspect-ratio: 1;
  display: block;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(31, 36, 40, 0.12);
}

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

.faq-item {
  padding: 22px;
}

.cta-band {
  background: var(--ink);
  color: #fff;
}

.cta-band .section-copy {
  color: rgba(255, 255, 255, 0.76);
}

.site-footer {
  background: #151a17;
  color: rgba(255, 255, 255, 0.72);
  padding: 34px 0;
  font-size: 14px;
}

.footer-inner {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-stealth-link {
  margin-left: 12px;
  color: #151a17;
}

.footer-stealth-link:hover,
.footer-stealth-link:focus {
  color: #151a17;
}

.article-page {
  padding-top: 112px;
}

.article-shell {
  width: min(100% - 40px, 860px);
  margin: 0 auto;
  padding-bottom: 86px;
}

.article-header {
  padding: 50px 0 28px;
}

.article-header h1 {
  margin: 12px 0 16px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.12;
  letter-spacing: 0;
}

.article-meta {
  color: var(--muted);
  font-size: 14px;
}

.article-body {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  color: #303a34;
  font-size: 18px;
}

.article-body h2 {
  margin: 38px 0 12px;
  font-size: 28px;
  line-height: 1.25;
}

.article-body h3 {
  margin: 26px 0 8px;
  font-size: 21px;
}

.article-body p,
.article-body ul,
.article-body ol {
  margin: 0 0 18px;
}

.article-body li {
  margin-bottom: 8px;
}

.note-box {
  margin: 26px 0;
  padding: 18px;
  border-left: 4px solid var(--green);
  background: #f0f5ef;
  color: #334239;
}

.back-link {
  color: var(--green-deep);
  font-weight: 800;
}

@media (max-width: 960px) {
  .proof-grid,
  .feature-grid,
  .audience-grid,
  .article-grid,
  .faq-grid,
  .placeholder-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-bottom: 56px;
  }

  .hero-visual {
    width: min(100%, 320px);
    aspect-ratio: 1080 / 1920;
    justify-self: center;
  }

  .screenshot-showcase {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 760px) {
  .nav {
    width: min(100% - 28px, var(--max));
  }

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

  .nav-links {
    position: absolute;
    top: 68px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .nav-links a {
    padding: 12px;
  }

  .nav-cta {
    width: 100%;
  }

  .hero {
    min-height: 0;
  }

  .hero-inner,
  .section-inner,
  .footer-inner,
  .article-shell {
    width: min(100% - 28px, var(--max));
  }

  .hero-lead {
    font-size: 18px;
  }

  .hero-visual {
    width: min(78vw, 300px);
    aspect-ratio: 1080 / 1920;
  }

  .section {
    padding: 68px 0;
  }

  .proof-grid,
  .feature-grid,
  .audience-grid,
  .article-grid,
  .faq-grid,
  .placeholder-layout {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}