:root {
  color: #1d3026;
  background: #f7f8f3;
  font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.55; }
a { color: inherit; }
a:focus-visible { outline: 2px solid #2d7650; outline-offset: 4px; }
button, a { -webkit-tap-highlight-color: transparent; }
.site-header, main, footer { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.site-header { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-bottom: 1px solid #dce3d9; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; font-size: 1.08rem; font-weight: 780; letter-spacing: -.04em; text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 30px; height: 30px; position: relative; border-radius: 5px; background: #244b34; color: #fbf8df; font-size: 1.05rem; letter-spacing: -.07em; }
.brand-mark span { position: absolute; top: -5px; right: -6px; font-size: .72rem; color: #b6d5ac; }
nav { display: flex; align-items: center; gap: clamp(13px, 2vw, 26px); font-size: .88rem; }
nav > a:not(.button) { color: #56655b; text-decoration: none; white-space: nowrap; }
nav > a:not(.button):hover { color: #1d3026; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 42px; padding: 9px 16px; border: 1px solid #244b34; border-radius: 6px; background: #244b34; color: #fff; font-weight: 680; text-decoration: none; white-space: nowrap; transition: background 160ms ease, transform 160ms ease; }
.button:hover { background: #183b28; transform: translateY(-1px); }
.button-small { min-height: 36px; padding: 6px 12px; gap: 14px; }
.button-large { min-height: 48px; padding: 11px 18px; }
.text-link { color: #245b3e; font-weight: 680; text-underline-offset: 5px; }
.text-link:hover { color: #143b27; }
h1, h2, h3, p { margin-top: 0; }
.eyebrow, .feature-index, .step-number, .resource-grid a > span:first-child { color: #407756; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .72rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }

.hero { display: grid; grid-template-columns: minmax(0, .93fr) minmax(0, 1.07fr); gap: clamp(32px, 5vw, 74px); align-items: center; padding: clamp(58px, 8vw, 108px) 0 clamp(72px, 8vw, 106px); }
.hero-copy { padding-bottom: 14px; }
h1 { margin-bottom: 28px; font-size: clamp(3.2rem, 6.2vw, 5.5rem); line-height: .98; letter-spacing: -.075em; }
h1 em { color: #4c865f; font-style: normal; }
.hero .eyebrow { margin-bottom: 20px; }
.lead { max-width: 510px; margin-bottom: 0; color: #516257; font-size: clamp(1.02rem, 1.5vw, 1.18rem); line-height: 1.72; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 30px; }
.hero-facts { margin: 20px 0 0; color: #718076; font-size: .82rem; }
.hero-facts span { margin-inline: 6px; }

.hero-board { position: relative; min-width: 0; aspect-ratio: 1.35; overflow: hidden; border: 8px solid #1d3829; border-radius: 12px; background-color: #263c2d; background-image: radial-gradient(#46614d 1px, transparent 1.2px); background-size: 18px 18px; box-shadow: 0 24px 58px rgba(28, 53, 36, .16); color: #f2f1dd; }
.board-topline, .board-bottomline { position: absolute; right: 0; left: 0; display: flex; align-items: center; gap: 11px; background: rgba(19, 36, 26, .66); color: #b7c9b5; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: clamp(.55rem, .85vw, .7rem); letter-spacing: .02em; }
.board-topline { top: 0; height: 40px; padding-inline: 17px; }
.board-topline-end { margin-left: auto; font-size: .58rem; letter-spacing: .12em; }
.board-dot { width: 7px; height: 7px; border-radius: 50%; background: #f3db89; }
.board-bottomline { bottom: 0; justify-content: space-between; min-height: 36px; padding-inline: 17px; }
.board-bottomline b { color: #f0e9ca; font-weight: 500; }
.board-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.board-lines path { fill: none; stroke: #b2cbaa; stroke-width: 2; opacity: .75; }
.board-note { position: absolute; display: inline-block; padding: 8px 11px; border: 1px solid currentColor; border-radius: 6px; background: #304b37; font-family: "Kaiti SC", "STKaiti", "KaiTi", "Patrick Hand", cursive; font-size: clamp(.8rem, 1.3vw, 1.05rem); line-height: 1.22; white-space: nowrap; transform: translate(-50%, -50%) rotate(-1deg); }
.board-note strong { font-weight: 700; }
.note-start { top: 49%; left: 31%; color: #f5ecbc; font-size: clamp(.95rem, 1.65vw, 1.35rem); }
.note-one { top: 26%; left: 72%; color: #c0dcbc; transform: translate(-50%, -50%) rotate(1deg); }
.note-two { top: 50%; left: 73%; color: #f0d994; }
.note-three { top: 73%; left: 72%; color: #c4d9e5; transform: translate(-50%, -50%) rotate(1deg); }
.board-cursor { position: absolute; top: 66%; left: 28%; width: 18px; height: 28px; border: 1px dashed #ebd985; border-radius: 4px; opacity: .65; }

.section { padding: 82px 0; border-top: 1px solid #dce3d9; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 36px; margin-bottom: 30px; }
.section-heading .eyebrow { margin-bottom: 13px; }
h2 { max-width: 670px; margin-bottom: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.058em; }
.section-heading > p { max-width: 355px; margin: 0; color: #596a5f; }
h3 { margin: 0 0 13px; font-size: 1.12rem; letter-spacing: -.025em; }
.feature-grid, .workflow, .use-grid, .faq-grid, .resource-grid { display: grid; gap: 1px; margin: 0; border: 1px solid #dce3d9; background: #dce3d9; }
.feature-grid, .use-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-grid article, .workflow li, .use-grid article, .faq-grid article { min-width: 0; background: #fffefa; }
.feature-grid article { min-height: 220px; padding: clamp(22px, 2.8vw, 34px); }
.feature-index { display: block; margin-bottom: 35px; }
.feature-grid p, .workflow p, .use-grid p, .faq-grid p { margin-bottom: 0; color: #5b6a60; }
kbd { padding: 1px 5px; border: 1px solid #cbd6c9; border-radius: 4px; background: #f4f6ee; color: #34513b; font: .82em ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.workflow-section { border-top: 0; }
.workflow { grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 0; list-style: none; }
.workflow li { min-height: 188px; padding: 26px; }
.step-number { display: block; margin-bottom: 31px; }
.workflow h3 { margin-bottom: 9px; }
.use-grid article { min-height: 148px; padding: 28px; }
.resources { border-top: 0; }
.resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.resource-grid a { display: flex; align-items: center; gap: 15px; min-height: 118px; padding: 25px 28px; background: #fffefa; text-decoration: none; }
.resource-grid a:hover { background: #f2f6eb; }
.resource-grid a > span:first-child { width: 95px; flex: none; }
.resource-grid a > strong { flex: 1; font-size: 1.05rem; }
.resource-grid a > span:last-child { color: #407756; font-size: 1.2rem; }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.faq-grid article { min-height: 150px; padding: 28px; }
.closing { margin: 70px 0 88px; padding: clamp(40px, 5vw, 64px); border-radius: 8px; background: #e4ecdb; }
.closing h2 { margin-bottom: 25px; }
footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0 42px; border-top: 1px solid #dce3d9; color: #708075; font-size: .83rem; }
footer nav { gap: 19px; font-size: inherit; }

@media (max-width: 1000px) {
  .site-header > nav { gap: 14px; }
  .site-header > nav a[href="#how-it-works"] { display: none; }
  .hero { grid-template-columns: 1fr; gap: 34px; }
  .hero-copy { max-width: 680px; }
  .hero-board { width: min(100%, 700px); }
}
@media (max-width: 700px) {
  .site-header, main, footer { width: min(100% - 32px, 1160px); }
  .site-header { align-items: flex-start; flex-direction: column; gap: 11px; padding-block: 15px; }
  .site-header > nav { width: 100%; flex-wrap: wrap; gap: 10px 16px; }
  .site-header > nav .button { margin-left: auto; }
  .hero { padding: 58px 0 70px; }
  h1 { font-size: clamp(3rem, 11vw, 4.4rem); }
  .hero-actions { gap: 15px; }
  .hero-board { aspect-ratio: 1.23; border-width: 5px; }
  .board-topline { height: 32px; }
  .board-bottomline { min-height: 29px; }
  .board-note { font-size: clamp(.65rem, 2.2vw, .95rem); padding: 6px 8px; }
  .note-start { font-size: clamp(.8rem, 2.6vw, 1.1rem); }
  .section { padding: 60px 0; }
  .section-heading { display: block; }
  .section-heading > p, .section-heading > .text-link { display: block; margin-top: 16px; }
  .feature-grid, .workflow, .use-grid, .faq-grid, .resource-grid { grid-template-columns: 1fr; }
  .feature-grid article, .workflow li, .use-grid article, .faq-grid article { min-height: 0; padding: 24px; }
  .feature-index, .step-number { margin-bottom: 18px; }
  .resource-grid a { min-height: 95px; padding: 22px; }
  .closing { margin: 50px 0 65px; }
  footer { align-items: flex-start; flex-direction: column; }
  footer nav { flex-wrap: wrap; }
}
@media (max-width: 380px) {
  .site-header > nav { font-size: .79rem; }
  .site-header > nav .button { width: 100%; }
  .hero-actions .button { width: 100%; }
  .board-bottomline { gap: 5px; padding-inline: 7px; font-size: .5rem; }
  .resource-grid a > span:first-child { width: 72px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .button { transition: none; } }