:root {
  --green-950: #073e20;
  --green-900: #0b552c;
  --green-800: #126a35;
  --green-700: #158039;
  --green-600: #27a244;
  --green-100: #e9f5ec;
  --paper: #fbfaf5;
  --text: #24312b;
  --muted: #68756c;
  --orange: #f18418;
  --line: rgba(18, 106, 53, 0.18);
  --shadow: 0 24px 70px rgba(11, 85, 44, 0.13);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Serif SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--paper); }
a { color: inherit; text-decoration: none; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 74px;
  padding: 0 clamp(18px, 4vw, 58px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: rgba(251, 250, 245, 0.93);
  border-bottom: 1px solid rgba(7, 62, 32, 0.1);
  backdrop-filter: blur(16px);
}

.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { display: block; width: min(25vw, 300px); min-width: 210px; height: 44px; object-fit: contain; object-position: left center; }
.main-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 28px); font-size: 15px; font-weight: 700; color: var(--green-950); }
.main-nav a { padding: 28px 0 24px; white-space: nowrap; }
.main-nav a:hover { color: var(--orange); }
.nav-cta { padding: 13px 26px !important; color: white !important; background: linear-gradient(135deg, #0d7c36, #2fab3f); border-radius: 7px; box-shadow: var(--shadow); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.nav-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--green-900); }

.hero { position: relative; min-height: 696px; overflow: hidden; color: white; }
.hero-bg, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-bg { object-fit: cover; filter: saturate(1.1) brightness(1.14); }
.hero-shade {
  background:
    linear-gradient(90deg, rgba(2, 46, 24, 0.78), rgba(2, 46, 24, 0.45) 45%, rgba(2, 46, 24, 0.08)),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(2, 46, 24, 0.12));
}
.hero-content { position: relative; z-index: 2; width: min(1260px, calc(100% - 64px)); margin: 0 auto; padding-top: 135px; }
.hero h1 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(72px, 8.6vw, 132px); line-height: 0.95; letter-spacing: 0; font-weight: 800; text-shadow: 0 6px 30px rgba(0,0,0,0.24); }
.hero h1 span { color: var(--orange); }
.hero-sub { width: max-content; max-width: 100%; margin: 28px 0 0; font-size: clamp(24px, 2.3vw, 32px); font-weight: 800; white-space: nowrap; }
.hero-content > p:not(.hero-sub) { margin: 18px 0 0; font-size: 18px; max-width: 680px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 28px; border: 1px solid transparent; border-radius: 7px; font-weight: 800; cursor: pointer; }
.button.primary { color: white; background: linear-gradient(135deg, #0f8538, #31ad43); box-shadow: var(--shadow); }
.button.ghost { color: white; border-color: rgba(255,255,255,0.62); background: rgba(255,255,255,0.12); backdrop-filter: blur(10px); }

.section { padding: 112px clamp(24px, 7vw, 112px); }
.section-label { margin: 0 0 18px; color: var(--green-800); font-size: 17px; font-weight: 800; }
h2 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(42px, 4.4vw, 68px); line-height: 1.16; letter-spacing: 0; }
.section-heading { max-width: 1080px; margin: 0 auto 56px; text-align: center; }
.section-heading h2 { white-space: nowrap; }
.section-heading p { margin: 20px auto 0; max-width: 900px; color: var(--muted); font-size: 18px; line-height: 1.8; }

.opportunity { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: 70px; align-items: center; background: linear-gradient(180deg, #fbfaf5, #f4f8f2); }
.copy h2 { max-width: 580px; }
.copy p { margin: 22px 0; max-width: 560px; color: #4e5f55; font-size: 17px; line-height: 1.9; }
.copy small { color: #2e3c34; font-weight: 700; }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.metric-grid article { min-height: 190px; padding: 42px 26px; border: 1px solid var(--line); border-radius: 7px; background: rgba(255,255,255,0.8); box-shadow: var(--shadow); }
.metric-grid strong { display: block; color: var(--green-950); font-size: clamp(34px, 3vw, 46px); }
.metric-grid span { display: block; margin-top: 16px; color: var(--muted); font-weight: 800; }

.pain { position: relative; min-height: 690px; overflow: hidden; background: var(--green-950); color: white; }
.pain > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.42; filter: brightness(0.76); }
.pain::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(3,31,18,0.88), rgba(3,31,18,0.45)); }
.pain-inner { position: relative; z-index: 1; width: min(1140px, calc(100% - 56px)); margin: 0 auto; padding-top: 150px; display: grid; grid-template-columns: 1fr 0.8fr; gap: 60px; }
.word-cloud { display: flex; flex-wrap: wrap; gap: 16px; max-width: 640px; }
.word-cloud span { padding: 14px 22px; border: 1px solid rgba(255,255,255,0.25); border-radius: 999px; background: rgba(255,255,255,0.13); font-size: 31px; font-weight: 900; animation: float-chip 3.8s ease-in-out infinite; }
.word-cloud span:nth-child(2n) { animation-delay: -0.6s; }
.word-cloud span:nth-child(3n) { animation-delay: -1.2s; }
.hard-word { justify-self: center; color: #d6251d; font-family: "Songti SC", serif; font-size: clamp(170px, 18vw, 300px); font-weight: 900; line-height: 0.85; text-shadow: 0 0 28px rgba(255, 45, 28, 0.28); animation: hard-shock 2.8s ease-in-out infinite; }
.trust-word { grid-column: 1 / -1; color: #a7ef86; font-family: "Songti SC", serif; font-size: clamp(110px, 12vw, 190px); line-height: 0.9; }
.trust-word span { color: #e2251c; animation: hard-shock 2.8s ease-in-out infinite -0.5s; }

.solution { background: #fffdf7; }
.report-strip { display: grid; grid-template-columns: repeat(4, 1fr); width: min(1120px, 100%); margin: 0 auto 28px; overflow: hidden; border-radius: 7px; background: var(--green-950); color: white; }
.report-strip article { min-height: 152px; padding: 32px 28px; border-right: 1px solid rgba(255,255,255,0.16); }
.report-strip h3 { margin: 0 0 18px; font-size: 28px; }
.report-strip p { margin: 0; color: #90df78; font-weight: 800; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; width: min(1120px, 100%); margin: 0 auto; }
.feature-grid article { padding: 34px 28px; min-height: 150px; border: 1px solid var(--line); border-radius: 7px; background: white; }
.feature-grid h3 { margin: 0 0 18px; color: var(--green-800); font-size: 28px; }

.hesu { background: linear-gradient(180deg, #f5fbf2, #edf6e9); }
.ecosystem-98866 { display: grid; gap: 18px; width: min(1160px, 100%); margin: 0 auto; }
.eco-row { display: grid; grid-template-columns: 96px 1fr 1.45fr; gap: 28px; align-items: center; min-height: 146px; padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,0.82); box-shadow: 0 18px 46px rgba(20, 92, 46, 0.08); animation: rise-row both; animation-timeline: view(); animation-range: entry 10% cover 32%; }
.eco-row b { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 50%; color: white; background: linear-gradient(135deg, #0b642f, #35ad3d); font-family: Georgia, serif; font-size: 38px; box-shadow: 0 14px 28px rgba(17, 123, 54, 0.22); }
.eco-row h3 { margin: 0 0 8px; color: var(--green-900); font-size: 30px; }
.eco-row p { margin: 0; color: var(--muted); line-height: 1.7; }
.eco-row ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0; padding: 0; list-style: none; }
.eco-row li { min-height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 6px; background: rgba(255,255,255,0.72); color: var(--green-950); font-weight: 800; }
.eco-row li.active { background: #91d978; }

.model { background: #fffdf7; }
.model-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; width: min(1120px, 100%); margin: 0 auto; }
.level-stack { display: grid; gap: 14px; }
.level-stack article { display: flex; align-items: center; gap: 34px; min-height: 82px; padding: 0 24px; border-radius: 7px; color: white; background: linear-gradient(135deg, #147c35, #32a91e); box-shadow: var(--shadow); }
.level-stack strong { font-family: "Songti SC", serif; font-size: 40px; }
.model-copy h3 { margin: 28px 0 10px; color: var(--green-950); font-size: clamp(46px, 4.3vw, 68px); }
.segmented { display: inline-flex; padding: 7px; gap: 6px; border-radius: 8px; background: var(--green-100); }
.segmented button { padding: 12px 28px; border: 1px solid var(--line); border-radius: 6px; background: white; color: var(--green-950); font-weight: 800; }
.segmented button:first-child { color: white; background: var(--green-700); }

.business { background: linear-gradient(180deg, #f3f7f1, #fffdf7); }
.table-wrap { width: min(1120px, 100%); margin: 0 auto; overflow-x: auto; border-radius: 8px; box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; min-width: 760px; background: white; }
th, td { padding: 22px 24px; border: 1px solid #deeadf; text-align: center; font-weight: 800; }
thead th { color: white; background: var(--green-800); }
tbody th { background: #eef7eb; color: var(--green-950); }
td:first-of-type { color: white; background: var(--orange); }

.future { min-height: 600px; display: grid; grid-template-columns: 0.82fr 1.18fr; align-items: center; gap: 42px; color: white; background: radial-gradient(circle at 75% 50%, #167c2b, #09451f 54%, #073818); overflow: hidden; }
.future-copy h2 { color: white; font-size: clamp(58px, 6vw, 92px); }
.future-copy p:not(.section-label) { max-width: 560px; margin: 22px 0 0; color: rgba(255,255,255,0.88); font-size: 18px; line-height: 1.8; }
.future .section-label { color: rgba(255,255,255,0.78); }
.map-art { position: relative; min-height: 430px; }
.future-map-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; mix-blend-mode: screen; filter: drop-shadow(0 0 18px rgba(54,255,92,0.5)); }
.map-pulse { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: #28ff6b; box-shadow: 0 0 12px #28ff6b, 0 0 28px rgba(40,255,107,0.8); animation: pulse-dot 2s ease-out infinite; }
.map-pulse::after { position: absolute; inset: -10px; border: 1px solid rgba(78,255,116,0.7); border-radius: inherit; content: ""; animation: pulse-ring 2s ease-out infinite; }
.p1{left:33%;top:37%}.p2{left:43%;top:42%;animation-delay:-.2s}.p3{left:51%;top:51%;animation-delay:-.4s}.p4{left:57%;top:43%;animation-delay:-.6s}.p5{left:63%;top:54%;animation-delay:-.8s}.p6{left:69%;top:37%;animation-delay:-1s}.p7{left:74%;top:46%;animation-delay:-1.2s}.p8{left:48%;top:64%;animation-delay:-1.4s}.p9{left:59%;top:67%;animation-delay:-1.6s}.p10{left:38%;top:58%;animation-delay:-1.8s}.p11{left:71%;top:66%;animation-delay:-.9s}.p12{left:80%;top:60%;animation-delay:-.5s}

.join { position: relative; display: grid; grid-template-columns: 0.78fr 1fr; gap: 58px; padding: 90px clamp(24px, 5vw, 72px); overflow: hidden; }
.join > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.16; }
.join-copy, .join-form { position: relative; z-index: 1; }
.join-copy { align-self: center; }
.join-copy p { color: var(--muted); font-size: 18px; }
.join-copy strong { display: block; margin-top: 42px; color: var(--green-800); font-size: 36px; }
.join-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 36px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,0.88); box-shadow: var(--shadow); }
.join-form label { display: grid; gap: 10px; color: var(--green-950); font-weight: 800; }
input, select, textarea { width: 100%; min-height: 52px; padding: 0 16px; border: 1px solid #cbded0; border-radius: 6px; background: white; font: inherit; }
textarea { min-height: 116px; padding-top: 14px; resize: vertical; }
.wide { grid-column: 1 / -1; }

.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px clamp(24px, 5vw, 72px); background: #f6faf2; color: var(--green-900); font-weight: 800; }
.site-footer img { width: min(48vw, 300px); height: 42px; object-fit: contain; object-position: left center; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes pulse-dot { 0%,100% { transform: scale(0.92); } 50% { transform: scale(1.42); } }
@keyframes pulse-ring { from { transform: scale(0.35); opacity: 0.9; } to { transform: scale(2.4); opacity: 0; } }
@keyframes float-chip { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes hard-shock { 0%,100% { transform: scale(1); filter: brightness(1); } 45% { transform: scale(1.035) rotate(-1deg); filter: brightness(1.15); } 55% { transform: scale(0.995) rotate(1deg); } }
@keyframes rise-row { from { opacity: 0; transform: translateY(46px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .main-nav { position: fixed; left: 16px; right: 16px; top: 82px; display: none; flex-direction: column; align-items: stretch; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: white; }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 12px; }
  .hero-sub, .section-heading h2 { white-space: normal; }
  .opportunity, .model-grid, .future, .join, .pain-inner { grid-template-columns: 1fr; }
  .report-strip, .feature-grid, .metric-grid { grid-template-columns: 1fr; }
  .eco-row { grid-template-columns: 78px 1fr; }
  .eco-row ul { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .site-header { height: 66px; }
  .brand img { width: 168px; min-width: 0; height: 34px; }
  .hero { min-height: 680px; }
  .hero-content { width: calc(100% - 32px); padding-top: 116px; }
  .hero h1 { font-size: 64px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .section { padding: 76px 18px; }
  .join-form { grid-template-columns: 1fr; padding: 24px; }
  .hard-word { justify-self: start; }
  .trust-word { font-size: 86px; }
  .site-footer { flex-direction: column; align-items: flex-start; }
}