:root {
  --bg: #f9fbf5;
  --bg-strong: #f2f8ea;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(127, 180, 62, 0.18);
  --line-strong: rgba(127, 180, 62, 0.34);
  --text: #15171c;
  --text-soft: #5f6773;
  --primary: #86cb2b;
  --primary-deep: #6fb61c;
  --shadow-soft: 0 28px 70px rgba(112, 132, 91, 0.12);
  --shadow-card: 0 20px 50px rgba(92, 112, 73, 0.12);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 20px;
  --container: min(1200px, calc(100vw - 48px));
  --header-h: 84px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 244, 0.98)),
    #f8fbf4;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

img {
  display: block;
  max-width: 100%;
}

svg {
  display: block;
}

.page-shell {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.02)),
    url("./背景.png") center top / 100% auto no-repeat;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  position: relative;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid rgba(181, 199, 146, 0.18);
  backdrop-filter: blur(14px);
}

.site-header::before {
  content: none;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 18px 0 10px;
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: 198px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #40444d;
  font-size: 15px;
  font-weight: 500;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 0;
  height: 4px;
  border-radius: 999px;
  background: var(--primary);
  transform: translateX(-50%);
  transition: width 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--primary-deep);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  width: 28px;
}

.header-cta,
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid rgba(132, 205, 40, 0.1);
  border-radius: 999px;
  background: linear-gradient(135deg, #96da3d, #76c11f);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 18px 30px rgba(134, 203, 43, 0.22);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    filter 180ms ease;
}

.header-cta:hover,
.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 36px rgba(134, 203, 43, 0.28);
  filter: saturate(1.06);
}

.hero {
  padding: 18px 0 32px;
}

.solutions::before,
.site-footer::before {
  content: "";
  position: absolute;
  border: 1px solid rgba(161, 214, 95, 0.18);
  border-radius: 50%;
  pointer-events: none;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 0;
  min-height: auto;
}

.hero-copy {
  display: none;
}

.primary-btn::after {
  content: "→";
  font-size: 22px;
  line-height: 1;
}

.primary-btn.is-compact {
  min-height: 52px;
  padding: 0 28px;
  font-size: 17px;
}

.hero-visual {
  grid-column: 1 / -1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 0;
  margin: 0 auto;
  padding: 0 56px;
}

.hero-art-panel {
  position: relative;
  width: 100%;
  aspect-ratio: 1672 / 941;
  border-radius: 30px;
  overflow: hidden;
  background: transparent;
}

.hero-art-panel::before {
  content: none;
}

.hero-art-glow {
  display: none;
}

.hero-art {
  position: absolute;
  inset: 0;
  background: transparent !important;
}

.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px dashed rgba(140, 205, 53, 0.4);
  background: transparent;
  box-shadow: none;
}

.hero-art::after {
  content: none;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 30px rgba(121, 132, 108, 0.18);
  color: #1f232b;
  cursor: pointer;
  transform: translateY(-50%);
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.carousel-arrow:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-50%) scale(1.04);
}

.carousel-arrow svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.carousel-arrow.is-prev {
  left: 0;
}

.carousel-arrow.is-next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
}

.carousel-dots button {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(96, 109, 123, 0.22);
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease;
}

.carousel-dots button.is-active {
  background: var(--primary);
  transform: scale(1.15);
}

.solutions {
  padding: 60px 0 72px;
}

.solutions::before {
  width: 920px;
  height: 920px;
  left: -360px;
  top: -180px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-kicker {
  margin: 0 0 14px;
  color: var(--primary-deep);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
}

.section-divider {
  width: 52px;
  height: 5px;
  margin: 16px auto 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), rgba(134, 203, 43, 0.34));
}

.section-heading p:last-child {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.85;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.solution-card {
  position: relative;
  padding: 24px 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(252, 253, 249, 0.7));
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 54px rgba(96, 117, 75, 0.16);
  border-color: rgba(151, 205, 87, 0.34);
}

.solution-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -26% auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(164, 221, 86, 0.12), transparent 72%);
}

.solution-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  margin-bottom: 16px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(242, 249, 229, 0.92), rgba(235, 247, 218, 0.8));
}

.solution-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.solution-art {
  height: 176px;
  margin: -10px -4px 16px;
  border-radius: 22px;
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.52)),
    url("./解决方案.png");
  background-repeat: no-repeat;
  background-size: auto, 455%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.art-chip {
  background-position: 0 0, 13% 31%;
}

.art-factory {
  background-position: 0 0, 38% 31%;
}

.art-car {
  background-position: 0 0, 63% 31%;
}

.art-supply {
  background-position: 0 0, 88% 31%;
}

.solution-card h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.2;
}

.solution-card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.78;
}

.solution-card a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  color: var(--primary-deep);
  font-size: 16px;
  font-weight: 700;
}

.solution-card a::after {
  content: "→";
  font-size: 22px;
  line-height: 1;
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 18px;
  padding: 30px 36px;
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(244, 249, 239, 0.78), rgba(255, 255, 255, 0.72)),
    rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.cta-copy h3 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3.2vw, 40px);
}

.cta-copy p {
  margin: 0 0 28px;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.75;
}

.cta-visual {
  position: relative;
  min-height: 280px;
}

.cta-orbit {
  position: absolute;
  inset: 50% auto auto 50%;
  border: 1px solid rgba(152, 208, 77, 0.24);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-one {
  width: 360px;
  height: 240px;
}

.orbit-two {
  width: 460px;
  height: 300px;
}

.orbit-three {
  width: 560px;
  height: 360px;
}

.cta-art {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.34)),
    url("./解决方案.png") no-repeat 88% 94% / 180%;
}

.site-footer {
  position: relative;
  padding-top: 48px;
}

.site-footer::before {
  width: 940px;
  height: 940px;
  right: -420px;
  top: -220px;
}

.footer-line {
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, rgba(134, 203, 43, 0.9), rgba(134, 203, 43, 0.55));
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(420px, 1.45fr) minmax(300px, 0.9fr);
  gap: 34px;
  padding: 46px 0 34px;
}

.footer-brand img {
  width: 200px;
  margin-bottom: 22px;
}

.footer-brand p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.85;
}

.social-links {
  display: flex;
  gap: 16px;
  margin-top: 38px;
}

.social-links a,
.stat-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(244, 249, 236, 0.96), rgba(236, 246, 220, 0.86));
}

.social-links svg,
.stat-icon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: #89c730;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.social-links a:first-child svg {
  fill: #89c730;
  stroke: none;
}

.social-links a:nth-child(2) svg {
  fill: #89c730;
  stroke: none;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  padding-top: 6px;
}

.footer-column h4,
.footer-contact h4 {
  margin: 0 0 22px;
  font-size: 18px;
}

.footer-column h4::after,
.footer-contact h4::after {
  content: "";
  display: block;
  width: 28px;
  height: 4px;
  margin-top: 14px;
  border-radius: 999px;
  background: var(--primary);
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-column a,
.footer-contact span,
.footer-contact p {
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.footer-column a:hover,
.footer-policy a:hover {
  color: var(--primary-deep);
}

.footer-contact {
  padding-left: 26px;
  border-left: 1px solid rgba(153, 187, 116, 0.22);
}

.footer-contact ul {
  display: grid;
  gap: 16px;
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: start;
  gap: 14px;
}

.footer-contact li svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-top: 4px;
}

.qr-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 18px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-card);
}

.qr-placeholder {
  display: grid;
  place-items: center;
  width: 140px;
  aspect-ratio: 1;
  border: 1.5px dashed rgba(139, 196, 66, 0.42);
  border-radius: 18px;
  background:
    linear-gradient(45deg, rgba(234, 245, 216, 0.72) 25%, transparent 25%, transparent 50%, rgba(234, 245, 216, 0.72) 50%, rgba(234, 245, 216, 0.72) 75%, transparent 75%, transparent),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 250, 237, 0.86));
  background-size: 18px 18px, auto;
}

.qr-placeholder span {
  width: 92px;
  color: var(--primary-deep);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  text-align: center;
}

.qr-card strong {
  display: block;
  margin: 8px 0 8px;
  font-size: 20px;
}

.qr-card p {
  margin: 0;
}

.stats-strip {
  border-top: 1px solid rgba(175, 195, 148, 0.24);
  border-bottom: 1px solid rgba(175, 195, 148, 0.24);
  background: rgba(249, 251, 245, 0.6);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.stat-item {
  display: grid;
  grid-template-columns: 56px auto;
  align-items: center;
  justify-content: center;
  gap: 0 18px;
  min-height: 112px;
  padding: 18px 10px;
}

.stat-item + .stat-item {
  border-left: 1px solid rgba(175, 195, 148, 0.24);
}

.stat-item strong {
  color: var(--primary-deep);
  font-size: 26px;
  line-height: 1;
}

.stat-item span {
  grid-column: 2;
  color: var(--text-soft);
  font-size: 15px;
}

.footer-bottom {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 20px;
  min-height: 92px;
  color: #6f7680;
  font-size: 15px;
}

.footer-policy {
  display: flex;
  gap: 34px;
}

@media (max-width: 1260px) {
  .site-nav {
    gap: 28px;
    font-size: 15px;
  }

  .hero-layout {
    min-height: auto;
  }

  .hero-visual {
    min-height: 0;
    padding: 0 48px;
  }

  .solution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-contact {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 980px) {
  :root {
    --container: min(100vw - 32px, 1240px);
    --header-h: auto;
  }

  .site-header {
    padding: 0 16px;
  }

  .site-header-inner {
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px 0 0;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 24px;
    overflow-x: auto;
    padding-bottom: 12px;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .brand img {
    width: 188px;
  }

  .header-cta {
    min-height: 44px;
    padding: 0 20px;
    font-size: 15px;
  }

  .hero {
    padding-top: 12px;
  }

  .solution-grid,
  .stats-grid,
  .footer-links,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .cta-visual {
    min-height: 220px;
  }

  .stat-item + .stat-item {
    border-left: 0;
    border-top: 1px solid rgba(175, 195, 148, 0.24);
  }

  .footer-bottom {
    grid-template-columns: 1fr;
    justify-items: start;
    padding: 24px 0 34px;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 0 12px;
  }

  .site-header-inner {
    gap: 10px;
  }

  .brand img {
    width: 168px;
  }

  .header-cta {
    display: none;
  }

  .site-nav {
    gap: 18px;
    font-size: 14px;
  }

  .hero-visual {
    min-height: 0;
    padding: 0;
  }

  .hero-art-panel {
    border-radius: 22px;
  }

  .hero-art::before {
    inset: 0;
    border-radius: inherit;
  }

  .carousel-arrow {
    display: none;
  }

  .section-kicker {
    font-size: 22px;
  }

  .section-heading,
  .solution-grid {
    margin-bottom: 26px;
  }

  .solution-art {
    height: 156px;
    background-size: auto, 520%;
  }

  .cta-band {
    padding: 28px 22px;
  }

  .social-links {
    margin-top: 28px;
  }

  .qr-card {
    grid-template-columns: 1fr;
  }
}