:root {
  --ink: #13231d;
  --muted: #61736b;
  --paper: #f4f6f1;
  --card: #ffffff;
  --line: #dfe6df;
  --lime: #c8ff3d;
  --green: #1e5b42;
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: auto;
  padding: 26px 28px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark {
  display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 10px; background: var(--ink); color: var(--lime); font-size: 18px;
  box-shadow: 0 6px 20px rgba(20,45,34,.18);
}
nav { display: flex; align-items: center; gap: 32px; font-size: 14px; font-weight: 600; }
nav a:not(.nav-cta):hover { color: var(--green); }
.nav-cta { padding: 11px 18px; background: var(--ink); color: white; border-radius: 999px; }

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  align-items: center;
  gap: 56px;
  max-width: 1240px;
  margin: auto;
  padding: 132px 28px 80px;
}
.eyebrow { display: flex; align-items: center; gap: 9px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.eyebrow span { width: 23px; height: 2px; background: var(--green); }
h1 { margin: 24px 0; font-size: clamp(54px, 6.2vw, 88px); line-height: .98; letter-spacing: -.065em; font-weight: 900; }
h1 em { color: var(--green); font-style: normal; }
.hero-lead { max-width: 570px; margin: 0; color: var(--muted); font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; gap: 32px; padding: 16px 21px; border-radius: 10px; font-weight: 800; }
.button.primary { background: var(--ink); color: white; box-shadow: 0 10px 25px rgba(20,40,32,.16); }
.button.primary span { color: var(--lime); }
.text-link { color: var(--green); font-size: 14px; font-weight: 700; }
.hero-note { display: flex; gap: 16px; align-items: center; margin-top: 58px; font-size: 13px; }
.hero-note strong { padding: 7px 11px; border: 1px solid #b9c6be; border-radius: 999px; }
.hero-note span { color: var(--muted); }

.hero-visual {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 32px;
  background: var(--green);
  background-image: radial-gradient(circle at 60% 15%, rgba(200,255,61,.24), transparent 30%), linear-gradient(145deg, #194c38, #0d3123);
  box-shadow: inset 0 1px rgba(255,255,255,.12), 0 24px 70px rgba(24,66,48,.18);
}
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.orbit-one { width: 420px; height: 420px; }
.orbit-two { width: 310px; height: 310px; border-style: dashed; transform: rotate(18deg); }
.signal-card { position: relative; z-index: 2; width: 285px; padding: 26px; border: 1px solid rgba(255,255,255,.26); border-radius: 22px; background: rgba(247,252,245,.92); box-shadow: 0 20px 55px rgba(0,0,0,.22); backdrop-filter: blur(10px); }
.signal-label, .signal-foot { display: block; color: #6d7c75; font-size: 12px; }
.signal-card strong { display: block; margin-top: 8px; font-size: 30px; letter-spacing: -.04em; }
.chart { height: 135px; display: flex; align-items: end; gap: 9px; margin: 26px 0 16px; border-bottom: 1px solid #cfdbd3; }
.chart i { flex: 1; border-radius: 5px 5px 0 0; background: linear-gradient(#b8f32c, #367a58); }
.floating-chip { position: absolute; z-index: 3; padding: 11px 15px; border-radius: 999px; background: white; color: #204b39; font-size: 12px; font-weight: 800; box-shadow: 0 8px 28px rgba(0,0,0,.18); }
.chip-one { top: 90px; left: 42px; }
.chip-two { right: 40px; bottom: 95px; }
.chip-three { left: 55px; bottom: 52px; background: var(--lime); }

.services { max-width: 1240px; margin: auto; padding: 100px 28px 120px; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 48px; }
.section-heading h2 { max-width: 630px; margin: 0; font-size: clamp(38px, 4vw, 58px); line-height: 1.12; letter-spacing: -.05em; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.service-card { min-height: 290px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); transition: transform .25s, border-color .25s; }
.service-card:hover { transform: translateY(-5px); border-color: #9eb3a5; }
.service-number { color: #8a9b92; font-size: 12px; font-weight: 800; }
.service-card h3 { margin: 44px 0 14px; font-size: 24px; }
.service-card p { min-height: 72px; margin: 0; color: var(--muted); line-height: 1.75; }
.service-card a { display: inline-flex; gap: 10px; margin-top: 28px; color: var(--green); font-size: 13px; font-weight: 800; }

.platforms { max-width: 1184px; margin: 0 auto 110px; padding: 22px 26px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.55); }
.platforms p { margin: 0 0 17px; color: #7b8c83; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.platforms div { display: grid; grid-template-columns: repeat(6, 1fr); }
.platforms span { padding: 9px 14px; border-left: 1px solid var(--line); text-align: center; font-size: 14px; font-weight: 800; }
.platforms span:first-child { border-left: 0; }

.method { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; padding: 112px max(28px, calc((100vw - 1184px) / 2)); background: var(--ink); color: white; }
.eyebrow.light { color: var(--lime); }
.eyebrow.light span { background: var(--lime); }
.method-intro h2 { margin: 24px 0; font-size: clamp(40px, 4.5vw, 66px); line-height: 1.08; letter-spacing: -.055em; }
.method-intro > p:last-child { max-width: 440px; color: #a9bbb2; line-height: 1.85; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 65px 1fr; gap: 22px; padding: 26px 0; border-top: 1px solid rgba(255,255,255,.14); }
.steps li:last-child { border-bottom: 1px solid rgba(255,255,255,.14); }
.steps > li > span { display: grid; place-items: center; width: 45px; height: 45px; border: 1px solid rgba(200,255,61,.5); border-radius: 50%; color: var(--lime); font-size: 12px; font-weight: 800; }
.steps h3 { margin: 0 0 8px; font-size: 21px; }
.steps p { margin: 0; color: #9fb1a8; line-height: 1.7; }

.why-us { max-width: 1240px; margin: auto; padding: 120px 28px; }
.why-panel { padding: 50px; border-radius: 28px; background: var(--lime); }
.why-panel h2 { margin: 22px 0; max-width: 700px; font-size: clamp(42px, 5vw, 68px); line-height: 1.04; letter-spacing: -.055em; }
.why-copy { max-width: 560px; color: #355141; line-height: 1.8; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 54px; padding-top: 34px; border-top: 1px solid rgba(19,35,29,.2); }
.metric-row div { display: flex; align-items: baseline; gap: 12px; }
.metric-row strong { font-size: 48px; letter-spacing: -.05em; }
.metric-row span { color: #486351; font-size: 13px; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 18px; }
.principles article { padding: 30px 24px; border-right: 1px solid var(--line); }
.principles article:last-child { border-right: 0; }
.principles article > span { color: var(--green); font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.principles h3 { margin: 40px 0 12px; font-size: 19px; }
.principles p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }

.insights { max-width: 1240px; margin: auto; padding: 100px 28px 120px; border-top: 1px solid var(--line); }
.insights .section-heading > div > p { color: var(--muted); }
.insights-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; padding: 11px 16px; border: 1px solid var(--green); border-radius: 999px; color: var(--green); font-size: 13px; font-weight: 800; transition: background .2s, color .2s; }
.insights-more:hover { background: var(--green); color: white; }
.article-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 16px; }
.article-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: white; }
.article-visual { position: relative; min-height: 250px; padding: 24px; background: #1c5a40; color: white; overflow: hidden; }
.article-visual::after { content: ''; position: absolute; width: 260px; height: 260px; right: -70px; bottom: -110px; border: 50px solid rgba(200,255,61,.55); border-radius: 50%; }
.article-visual span { font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.article-visual b { position: absolute; right: 24px; top: 15px; color: rgba(255,255,255,.18); font-size: 84px; }
.article-visual.small { min-height: 190px; }
.article-visual.lime { background: var(--lime); color: var(--ink); }
.article-visual.pale { background: #dce8df; color: var(--ink); }
.article-body { padding: 25px; }
.article-body > span { color: #84938b; font-size: 11px; }
.article-body h3 { margin: 13px 0; font-size: 21px; line-height: 1.45; }
.featured .article-body h3 { font-size: 26px; }
.article-body p { color: var(--muted); line-height: 1.7; }
.article-body a { display: inline-block; margin-top: 12px; color: var(--green); font-size: 12px; font-weight: 800; }

.faq { display: grid; grid-template-columns: .75fr 1.25fr; gap: 90px; max-width: 1184px; margin: auto; padding: 110px 0; }
.faq h2 { margin: 22px 0; font-size: clamp(40px, 4vw, 58px); line-height: 1.1; letter-spacing: -.05em; }
.faq-list details { border-top: 1px solid #cfd8d1; }
.faq-list details:last-child { border-bottom: 1px solid #cfd8d1; }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; padding: 24px 2px; cursor: pointer; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--green); font-size: 20px; }
.faq-list p { max-width: 650px; margin: -5px 0 25px; color: var(--muted); line-height: 1.8; }

.closing { margin: 40px 28px 0; padding: 100px 30px; border-radius: 30px 30px 0 0; background: var(--green); color: white; text-align: center; }
.closing-kicker { color: var(--lime); font-size: 11px; font-weight: 800; letter-spacing: .15em; }
.closing h2 { margin: 24px auto 34px; font-size: clamp(48px, 6vw, 82px); line-height: 1.02; letter-spacing: -.06em; }
.closing-button { background: var(--lime); color: var(--ink); }
footer { display: grid; grid-template-columns: 1.1fr 1.2fr 1fr; gap: 40px; align-items: start; padding: 65px max(28px, calc((100vw - 1184px) / 2)) 30px; background: #0d2119; color: white; }
footer > p { margin: 0; color: #91a59a; line-height: 1.75; }
footer > div { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; font-size: 13px; }
footer > div a:hover { color: var(--lime); }
footer small { grid-column: 1 / -1; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.1); color: #6f8379; }

@media (max-width: 860px) {
  nav a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 124px; }
  .hero-visual { min-height: 420px; }
  .section-heading { display: block; }
  .section-heading .eyebrow { margin-bottom: 18px; }
  .service-grid { grid-template-columns: 1fr; }
  .platforms div { grid-template-columns: repeat(3, 1fr); }
  .platforms span:nth-child(4) { border-left: 0; }
  .method { grid-template-columns: 1fr; gap: 45px; }
  .principles { grid-template-columns: 1fr 1fr; }
  .principles article:nth-child(2) { border-right: 0; }
  .metric-row { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr 1fr; }
  .article-card.featured { grid-column: 1 / -1; }
  .faq { grid-template-columns: 1fr; gap: 30px; padding: 90px 28px; }
  footer { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .site-header { padding: 20px; }
  .brand { font-size: 14px; }
  .nav-cta { padding: 9px 14px; font-size: 12px; }
  .hero { padding: 110px 20px 64px; gap: 36px; }
  h1 { font-size: 52px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .hero-note { align-items: flex-start; flex-direction: column; gap: 10px; margin-top: 40px; }
  .hero-visual { min-height: 380px; border-radius: 22px; }
  .signal-card { width: 250px; }
  .chip-one { left: 14px; }
  .chip-two { right: 12px; }
  .chip-three { left: 20px; bottom: 35px; }
  .services { padding: 72px 20px; }
  .platforms { margin: 0 20px 72px; }
  .platforms div { grid-template-columns: 1fr 1fr; }
  .platforms span:nth-child(odd) { border-left: 0; }
  .platforms span:nth-child(4) { border-left: 1px solid var(--line); }
  .method { padding: 80px 20px; }
  .why-us { padding: 72px 20px; }
  .why-panel { padding: 32px 24px; }
  .principles { grid-template-columns: 1fr; }
  .principles article { border-right: 0; border-bottom: 1px solid var(--line); }
  .article-grid { grid-template-columns: 1fr; }
  .article-card.featured { grid-column: auto; }
  .closing { margin: 20px 12px 0; padding: 72px 20px; }
  footer { grid-template-columns: 1fr; padding: 50px 25px 28px; }
}

.articles-page{min-height:100vh;background:#f6f4ee}.article-site-head{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,6vw,90px);background:#102b24;color:#fff}.article-site-head a{font-weight:800;text-decoration:none}.article-site-head span{font-size:12px;color:#9cb6ad}.article-index{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:90px 0}.article-index>h1{font-size:clamp(36px,6vw,68px);margin:10px 0 13px}.article-index>p:not(.section-kicker){color:#6f776f}.article-index-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:45px}.article-index-grid>a,.article-empty{background:#fff;border:1px solid #dedfd8;border-radius:16px;padding:27px;text-decoration:none;color:#15332b}.article-index-grid time{font-size:11px;color:#9a7961}.article-index-grid h2{font-size:22px;margin:18px 0 10px}.article-index-grid p{color:#68736d;font-size:14px;line-height:1.7}.article-index-grid span{display:block;color:#b66139;font-weight:700;font-size:12px;margin-top:22px}.article-detail{min-height:100vh;background:#f6f4ee;padding:45px 20px 90px}.article-back{display:block;width:min(760px,100%);margin:0 auto 35px;color:#6f776f;text-decoration:none;font-size:12px}.article-detail article{width:min(760px,100%);margin:auto;background:#fff;border:1px solid #dedfd8;border-radius:20px;padding:clamp(28px,6vw,66px)}.article-detail h1{font-size:clamp(34px,6vw,58px);line-height:1.12;margin:20px 0}.article-summary{font-size:18px;line-height:1.7;color:#68736d}.article-detail time{display:block;color:#a18e7f;font-size:11px;margin:25px 0 40px}.article-tags{display:flex;gap:7px;flex-wrap:wrap}.article-tags span{font-size:10px;color:#965232;background:#faede4;padding:5px 9px;border-radius:20px}.markdown-content{white-space:pre-wrap;font-size:16px;line-height:1.95;color:#35433e}.article-empty{grid-column:1/-1;color:#747d77;text-align:center}@media(max-width:700px){.article-index-grid{grid-template-columns:1fr}.article-index{padding:60px 0}.article-detail article{padding:28px 22px}}