:root {
  --ink: #15241d;
  --muted: #617168;
  --line: #d9e8df;
  --green: #08a66a;
  --green-dark: #04764e;
  --soft: #f3fbf7;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #f7faf8;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.deck {
  overflow: hidden;
  background: linear-gradient(180deg, #f3fbf7 0%, #fff 34%, #f7faf8 100%);
}

.hero,
.section,
.closing {
  padding-left: max(22px, calc((100vw - 1180px) / 2));
  padding-right: max(22px, calc((100vw - 1180px) / 2));
}

.hero {
  min-height: 100vh;
  padding-top: 22px;
  padding-bottom: 72px;
}

.topbar {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #14221c;
  font-size: 20px;
  font-weight: 900;
  text-decoration: none;
}

.brand span {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--green);
  color: #fff;
  font-size: 15px;
  box-shadow: 0 10px 22px rgba(8, 166, 106, 0.2);
}

.nav-cta,
.closing a {
  min-height: 42px;
  padding: 0 18px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  text-decoration: none;
}

.hero-grid {
  min-height: calc(100vh - 146px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 510px);
  align-items: center;
  gap: 66px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.closing h2 {
  margin: 0;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: 1.05;
}

.lead {
  max-width: 690px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.8;
}

.hero-points {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.hero-points span {
  min-height: 90px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  color: #53645b;
  font-size: 14px;
}

.hero-points strong {
  display: block;
  margin-bottom: 4px;
  color: var(--green-dark);
  font-size: 28px;
  line-height: 1;
}

.hero-showcase {
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 28px 70px rgba(14, 62, 43, 0.12);
  overflow: hidden;
}

.hero-showcase img,
.product-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.section {
  padding-top: 86px;
  padding-bottom: 86px;
  background: #fff;
}

.section:nth-of-type(odd) {
  background: #f5faf7;
}

.split,
.solution,
.dark {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1fr);
  align-items: center;
  gap: 58px;
}

.section h2 {
  max-width: 820px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.16;
}

.section-lead,
.solution-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.solution-copy p {
  margin-top: 18px;
}

.cards,
.product-grid,
.value-grid {
  margin-top: 34px;
  display: grid;
  gap: 18px;
}

.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards article,
.product-grid article,
.model-list div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.cards article {
  min-height: 188px;
  padding: 26px;
}

.cards h3,
.product-grid h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.cards p,
.product-grid p,
.model-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.flow {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 18px;
  background: #fff;
  box-shadow: 0 18px 44px rgba(15, 63, 43, 0.06);
}

.flow div {
  min-height: 88px;
  padding: 18px;
  border-radius: 8px;
  display: grid;
  align-content: center;
  background: var(--soft);
}

.flow strong {
  font-size: 22px;
}

.flow span {
  margin-top: 6px;
  color: var(--muted);
}

.flow i {
  width: 2px;
  height: 22px;
  margin: -4px auto;
  background: var(--green);
}

.page-demo {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1fr);
  align-items: center;
  gap: 72px;
}

.phone-demo {
  display: grid;
  place-items: center;
}

.phone-shell {
  width: min(100%, 330px);
  min-height: 610px;
  padding: 18px;
  border: 10px solid #17231d;
  border-radius: 36px;
  background: #f8fbfa;
  box-shadow: 0 30px 70px rgba(14, 62, 43, 0.16);
}

.phone-bar {
  width: 74px;
  height: 7px;
  margin: 0 auto 26px;
  border-radius: 999px;
  background: #d7ddd9;
}

.page-card {
  padding: 24px 18px;
  border: 1px solid #e5ede8;
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.page-avatar {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--green);
  color: #fff;
  font-size: 26px;
  font-weight: 900;
}

.page-card h3 {
  margin: 0 0 8px;
  font-size: 24px;
}

.page-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.page-buttons {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.page-buttons span {
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid #e5ede8;
  border-radius: 8px;
  display: flex;
  align-items: center;
  background: #fff;
  color: #193027;
  font-weight: 800;
}

.page-buttons span:first-child {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

.page-demo-copy p {
  max-width: 620px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.page-demo-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.page-demo-list article {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.page-demo-list strong,
.page-demo-list span {
  display: block;
}

.page-demo-list strong {
  color: var(--ink);
  font-size: 19px;
}

.page-demo-list span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.65;
}

.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid article {
  padding: 14px 14px 22px;
  overflow: hidden;
}

.product-grid h3 {
  margin: 18px 4px 8px;
}

.product-grid p {
  margin: 0 4px;
}

.tags {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tags span {
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #26352e;
  font-weight: 800;
}

.dark {
  background: #10221a !important;
  color: #fff;
}

.dark .section-kicker {
  color: #74e1ad;
}

.value-grid {
  margin-top: 0;
}

.value-grid article {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.value-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.value-grid span {
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.75;
}

.model-list {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.model-list div {
  padding: 26px;
}

.model-list span {
  display: block;
  margin-bottom: 22px;
  color: var(--green-dark);
  font-size: 18px;
  font-weight: 900;
}

.model-list strong {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}

.closing {
  min-height: 72vh;
  padding-top: 92px;
  padding-bottom: 92px;
  display: grid;
  place-items: center;
  text-align: center;
  background: linear-gradient(180deg, #f5faf7, #fff);
}

.closing p {
  margin: 0 0 16px;
  color: var(--green-dark);
  font-weight: 900;
}

.closing h2 {
  max-width: 940px;
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.16;
}

.closing a {
  margin-top: 32px;
  min-width: 142px;
}

.site-footer {
  padding: 22px max(22px, calc((100vw - 1180px) / 2));
  border-top: 1px solid var(--line);
  background: #f7faf8;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--green-dark);
  text-decoration: underline;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.wechat-modal:target {
  opacity: 1;
  visibility: visible;
}

.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 24, 17, 0.68);
  backdrop-filter: blur(5px);
}

.wechat-modal-card {
  position: relative;
  z-index: 1;
  width: min(100%, 390px);
  border-radius: 16px;
  background: #fff;
  padding: 30px;
  text-align: center;
  box-shadow: 0 28px 80px rgba(5, 35, 22, 0.3);
}

.wechat-modal-card p {
  margin: 0 0 8px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 900;
}

.wechat-modal-card h2 {
  margin: 0;
  font-size: 28px;
}

.wechat-modal-card img {
  display: block;
  width: min(100%, 260px);
  margin: 22px auto 16px;
  border-radius: 12px;
}

.wechat-modal-card span {
  display: block;
  color: var(--muted);
  line-height: 1.6;
}

.wechat-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #eef5f1;
  color: #53645b;
  font-size: 24px;
  line-height: 1;
  text-decoration: none;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .solution,
  .page-demo,
  .dark {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 46px;
  }

  .hero-showcase {
    max-width: 560px;
  }

  .three,
  .product-grid,
  .model-list {
    grid-template-columns: 1fr;
  }

  .value-grid {
    margin-top: 24px;
  }
}

@media (max-width: 640px) {
  .hero,
  .section,
  .closing,
  .site-footer {
    padding-left: 14px;
    padding-right: 14px;
  }

  .hero {
    min-height: auto;
    padding-top: 14px;
    padding-bottom: 52px;
  }

  .nav-cta {
    display: none;
  }

  .hero h1 {
    font-size: 42px;
  }

  .lead {
    font-size: 17px;
  }

  .hero-points {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 58px;
    padding-bottom: 58px;
  }
}