:root {
  --ink: #17231d;
  --muted: #66736a;
  --paper: #f7f8f2;
  --card: #ffffff;
  --line: #dfe6dd;
  --green: #146138;
  --green-dark: #0c4226;
  --lime: #d7f06b;
  --orange: #ef815d;
  --shadow: 0 18px 50px rgba(23, 54, 35, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(247,248,242,.86); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(223,230,221,.7); }
.nav { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: var(--green-dark); background: var(--lime); font-family: Georgia, serif; font-size: 24px; }
.brand-name { font-size: 18px; }
.brand-sub { margin-left: 4px; color: var(--muted); font-size: 12px; font-weight: 500; }
.nav-links { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--green); }
.nav-cta { padding: 10px 17px; color: #fff !important; background: var(--green); border-radius: 999px; font-weight: 700; }

.hero { position: relative; overflow: hidden; padding: 94px 0 84px; }
.hero:before { content: ""; position: absolute; width: 480px; height: 480px; right: -120px; top: -160px; border-radius: 50%; background: #e7f4bc; opacity: .65; }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, .9fr); align-items: center; gap: 76px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-size: 13px; font-weight: 800; letter-spacing: .1em; }
.eyebrow:before { content: ""; width: 24px; height: 2px; background: var(--orange); }
h1 { max-width: 620px; margin: 20px 0; font-size: clamp(42px, 5.4vw, 72px); line-height: 1.08; letter-spacing: -.055em; }
.hero-copy { max-width: 520px; margin: 0 0 30px; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 21px; border-radius: 999px; border: 1px solid transparent; font-size: 15px; font-weight: 750; cursor: pointer; }
.button-primary { color: #fff; background: var(--green); box-shadow: 0 10px 22px rgba(20,97,56,.2); }
.button-primary:hover { background: var(--green-dark); }
.button-ghost { color: var(--green); border-color: #b8c9b8; background: rgba(255,255,255,.55); }
.button-ghost:hover { background: #fff; }
.hero-note { margin-top: 19px; color: var(--muted); font-size: 13px; }
.hero-note strong { color: var(--ink); }

.app-preview { position: relative; min-height: 490px; padding: 30px 36px 32px; border: 1px solid rgba(20,97,56,.13); border-radius: 30px; background: #e7f0d9; box-shadow: var(--shadow); }
.preview-tag { display: inline-flex; padding: 7px 12px; border-radius: 999px; color: var(--green); background: rgba(255,255,255,.7); font-size: 12px; font-weight: 800; }
.phone { position: absolute; right: 31px; bottom: 0; width: min(265px, 58%); padding: 9px; border: 7px solid #20392b; border-bottom: 0; border-radius: 30px 30px 0 0; background: #fbfcf7; box-shadow: 0 20px 30px rgba(19,47,29,.2); }
.phone img { display: block; width: 100%; height: 350px; object-fit: cover; object-position: top; border-radius: 17px 17px 0 0; }
.phone-home { position: absolute; bottom: 8px; left: 50%; width: 70px; height: 4px; transform: translateX(-50%); border-radius: 999px; background: #20392b; }
.preview-card { position: absolute; left: 30px; bottom: 64px; width: 210px; padding: 20px; border-radius: 18px; background: #fff; box-shadow: 0 14px 30px rgba(29,70,39,.14); }
.preview-card p { margin: 4px 0 16px; color: var(--muted); font-size: 12px; }
.preview-number { margin: 0; color: var(--green); font-size: 38px; line-height: 1; font-weight: 850; }
.progress { height: 7px; margin-top: 12px; overflow: hidden; border-radius: 10px; background: #e5ede1; }
.progress span { display: block; width: 68%; height: 100%; border-radius: inherit; background: var(--orange); }

.section { padding: 96px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 38px; }
.section-heading h2 { max-width: 560px; margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.15; letter-spacing: -.04em; }
.section-heading p { max-width: 330px; margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { min-height: 238px; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.feature:nth-child(2) { background: #f0f6d8; }
.feature:nth-child(3) { background: #fff2e5; }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 29px; border-radius: 12px; color: var(--green); background: rgba(20,97,56,.1); font-size: 21px; }
.feature h3 { margin: 0 0 8px; font-size: 21px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.step { position: relative; padding: 28px 24px 0 0; }
.step:not(:last-child):after { content: ""; position: absolute; top: 44px; right: 18px; width: 1px; height: 50px; background: var(--line); }
.step-index { color: var(--orange); font-size: 13px; font-weight: 850; }
.step h3 { margin: 14px 0 7px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.callout { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; padding: 34px 38px; border-radius: 22px; color: #fff; background: var(--green); }
.callout h2 { margin: 0 0 6px; font-size: 28px; letter-spacing: -.035em; }
.callout p { margin: 0; color: #c9dbc7; font-size: 14px; }
.callout .button { color: var(--green-dark); background: var(--lime); }

.site-footer { padding: 34px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a:hover { color: var(--green); }

.legal-page { padding: 72px 0 96px; }
.legal-header { max-width: 760px; margin-bottom: 38px; }
.legal-header h1 { margin: 14px 0 12px; font-size: clamp(36px, 5vw, 56px); }
.legal-header p { margin: 0; color: var(--muted); }
.legal-layout { display: grid; grid-template-columns: 190px minmax(0, 760px); gap: 54px; align-items: start; }
.legal-nav { position: sticky; top: 104px; padding: 16px 0; border-top: 1px solid var(--line); }
.legal-nav a { display: block; padding: 7px 0; color: var(--muted); font-size: 13px; }
.legal-nav a:hover { color: var(--green); }
.legal-article { padding: 36px 42px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.legal-article h2 { margin: 30px 0 10px; font-size: 21px; }
.legal-article h2:first-child { margin-top: 0; }
.legal-article p, .legal-article li { color: #4d5a51; font-size: 15px; }
.legal-article ul, .legal-article ol { padding-left: 1.4em; }
.legal-article li + li { margin-top: 7px; }
.legal-article strong { color: var(--ink); }
.legal-meta { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

@media (max-width: 800px) {
  .container { width: min(100% - 32px, 600px); }
  .nav { height: 68px; }
  .brand-sub, .nav-links a:not(.nav-cta) { display: none; }
  .nav-links { gap: 0; }
  .hero { padding: 62px 0 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; }
  h1 { font-size: clamp(40px, 12vw, 58px); }
  .hero-copy { font-size: 16px; }
  .app-preview { min-height: 410px; padding: 24px; }
  .phone { right: 18px; width: 220px; }
  .phone img { height: 290px; }
  .preview-card { left: 18px; bottom: 42px; width: 172px; padding: 16px; }
  .preview-number { font-size: 31px; }
  .section { padding: 65px 0; }
  .section-heading { display: block; margin-bottom: 26px; }
  .section-heading p { margin-top: 13px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { min-height: auto; }
  .workflow { grid-template-columns: 1fr 1fr; gap: 24px 10px; }
  .step { padding-top: 22px; }
  .step:not(:last-child):after { display: none; }
  .callout { grid-template-columns: 1fr; padding: 26px; }
  .callout .button { width: fit-content; }
  .footer-row { align-items: flex-start; flex-direction: column; }
  .legal-page { padding: 50px 0 70px; }
  .legal-layout { display: block; }
  .legal-nav { position: static; display: flex; gap: 17px; overflow-x: auto; margin-bottom: 18px; padding: 10px 0; white-space: nowrap; }
  .legal-article { padding: 26px 21px; }
}