:root {
  --ink: #252019;
  --green: #7caf35;
  --deep-green: #376e31;
  --yellow: #ffc532;
  --cream: #fff8df;
  --orange: #f27b32;
  --blue: #9bd8ee;
  --shadow: 0 12px 0 rgba(67, 55, 30, .16), 0 20px 40px rgba(67, 55, 30, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #f9f2dc;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
a { color: inherit; text-decoration: none; }

.nav {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: 50%;
  width: min(1120px, calc(100% - 32px));
  min-height: 62px;
  padding: 8px 12px 8px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  transform: translateX(-50%);
  border: 2px solid rgba(53, 45, 22, .15);
  border-radius: 22px;
  background: rgba(255, 252, 233, .9);
  box-shadow: 0 8px 24px rgba(56, 45, 15, .13);
  backdrop-filter: blur(12px);
}
.brand { font-weight: 900; }
.brand-dot {
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-right: 9px;
  vertical-align: -3px;
  border: 2px solid #4c7a27;
  border-radius: 50%;
  background: #91c83f;
  box-shadow: inset -3px -3px 0 rgba(45, 90, 25, .25);
}
.nav nav { display: flex; gap: 28px; font-size: 14px; font-weight: 700; }
.nav nav a:hover { color: var(--deep-green); }
.nav-button {
  padding: 10px 18px;
  border: 2px solid #6d5011;
  border-radius: 14px;
  background: var(--yellow);
  font-weight: 900;
  box-shadow: 0 4px 0 #b67c0c;
}

.hero {
  min-height: 720px;
  padding: 160px max(7vw, 24px) 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  overflow: hidden;
  position: relative;
  background: radial-gradient(circle at 45% 18%, #d7f18d 0 8%, transparent 9%),
              linear-gradient(#a8d94f 0 68%, #73b13b 68%);
}
.hero-copy { z-index: 2; max-width: 650px; }
.eyebrow {
  margin: 0 0 12px;
  color: #376e31;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .15em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  font-size: clamp(64px, 9vw, 136px);
  line-height: .9;
  letter-spacing: -.08em;
  text-shadow: 0 8px 0 rgba(255,255,255,.28), 0 14px 0 rgba(52, 80, 23, .14);
}
.lead { font-size: clamp(22px, 3vw, 34px); font-weight: 900; line-height: 1.45; }
.actions { display: flex; gap: 14px; margin-top: 34px; }
.button {
  display: inline-flex;
  justify-content: center;
  padding: 14px 24px;
  border: 2px solid #5b4513;
  border-radius: 17px;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  box-shadow: 0 6px 0 rgba(78, 55, 14, .7);
  transition: transform .2s, box-shadow .2s;
}
.button:hover { transform: translateY(3px); box-shadow: 0 3px 0 rgba(78,55,14,.7); }
.primary { background: var(--yellow); }
.secondary { background: #fff8d9; }

.clay-scene { position: relative; min-height: 430px; }
.sun { position: absolute; right: 4%; top: 0; width: 100px; height: 100px; border-radius: 50%; background: var(--yellow); box-shadow: inset -12px -12px 0 #e9a51f, 0 0 0 14px rgba(255,232,91,.3); }
.house { position: absolute; bottom: 30px; width: 190px; height: 180px; border: 8px solid #422b18; border-radius: 35% 35% 22% 22%; box-shadow: var(--shadow); }
.house::before { content: ""; position: absolute; left: -20px; top: -75px; width: 215px; height: 120px; border: 8px solid #422b18; border-radius: 60% 60% 35% 35%; transform: rotate(-5deg); }
.house span { position: absolute; left: 65px; bottom: 0; width: 58px; height: 90px; border: 7px solid #422b18; border-radius: 30px 30px 0 0; background: #ffe47e; }
.house-a { right: 20px; background: #ef7740; transform: rotate(3deg); }
.house-a::before { background: #6d9cd1; }
.house-b { left: 5%; bottom: 0; transform: scale(.7) rotate(-4deg); background: #f9cb43; }
.house-b::before { background: #ef6f4e; }
.tree { position: absolute; bottom: 15px; width: 38px; height: 130px; border-radius: 20px; background: #79502a; }
.tree::before { content: ""; position: absolute; width: 120px; height: 120px; left: -42px; top: -60px; border-radius: 48% 55% 45% 52%; background: #4e962f; box-shadow: inset -15px -12px 0 #36792d; }
.tree-a { left: 2%; }
.tree-b { right: 0; transform: scale(.8); }
.character { position: absolute; left: 42%; bottom: 20px; font-size: 90px; filter: drop-shadow(0 12px 5px rgba(40,40,10,.18)); }
.blob { position: absolute; border-radius: 50%; opacity: .4; filter: blur(1px); }
.blob-one { width: 260px; height: 160px; left: -70px; bottom: -50px; background: #3e872f; }
.blob-two { width: 220px; height: 120px; right: 15%; top: 100px; background: #f7e849; }

.section { padding: 105px max(7vw, 24px); text-align: center; }
.section h2 { max-width: 900px; margin: 0 auto 24px; font-size: clamp(36px, 5vw, 70px); line-height: 1.12; letter-spacing: -.05em; }
.section-lead { max-width: 760px; margin: 0 auto 55px; font-size: 19px; line-height: 1.8; }
.intro { background: var(--cream); }
.flow { max-width: 1080px; margin: auto; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 20px; }
.flow article, .step, .tool-grid article {
  padding: 32px 26px;
  border: 3px solid rgba(75,54,20,.55);
  border-radius: 28px;
  background: #fffdf1;
  box-shadow: var(--shadow);
}
.flow article span, .step b { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: var(--yellow); }
.flow h3, .step h3, .tool-grid h3 { margin: 18px 0 8px; font-size: 24px; }
.flow p, .step p, .tool-grid p { margin: 0; color: #655c4e; line-height: 1.7; }
.arrow { font-size: 34px; font-weight: 900; }
.warm { background: #f8c84a; }
.steps { max-width: 950px; margin: 50px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step { position: relative; }
.step b { position: absolute; top: -18px; left: -14px; }
.step .icon { font-size: 60px; }
.step.yellow { background: #fff1a9; }
.step.green { background: #d8edb3; }
.step.purple { background: #dfd4f5; }
.sky { background: #aaddf0; }
.tool-grid { max-width: 1080px; margin: 50px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tool-grid article { background: #fff9e4; }
.tool-grid span { font-size: 48px; }
.community { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 60px; text-align: left; background: #ee7045; }
.community h2 { margin-left: 0; }
.community p:last-child { max-width: 600px; font-size: 18px; line-height: 1.8; }
.community img { width: 100%; max-height: 520px; object-fit: cover; border: 7px solid #573919; border-radius: 40px; box-shadow: var(--shadow); }
.contact { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; text-align: left; background: #8bc241; }
.contact h2 { margin-left: 0; }
.contact > div > p:last-child { font-size: 18px; line-height: 1.8; }
form { padding: 34px; border: 4px solid #644a20; border-radius: 32px; background: #fff9df; box-shadow: var(--shadow); }
label { display: block; margin-bottom: 20px; font-weight: 900; }
textarea, input { width: 100%; margin-top: 10px; padding: 16px; border: 2px solid #bca774; border-radius: 15px; background: #fffefa; font: inherit; resize: vertical; }
.form-note { margin: 18px 0 0; color: #6d624c; font-size: 13px; }
footer { padding: 42px 7vw; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 30px; background: #2f351f; color: #fff9db; }
footer p { margin: 0; color: #cbd0b6; }
footer a { color: #f3d76b; }

@media (max-width: 800px) {
  .nav { top: 10px; }
  .nav nav { display: none; }
  .hero { min-height: 820px; padding-top: 125px; grid-template-columns: 1fr; text-align: center; }
  .hero-copy { margin: auto; }
  .actions { justify-content: center; flex-wrap: wrap; }
  .clay-scene { min-height: 330px; transform: scale(.85); }
  .flow { grid-template-columns: 1fr; }
  .arrow { transform: rotate(90deg); }
  .steps, .tool-grid { grid-template-columns: 1fr; }
  .community, .contact { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; text-align: center; }
}