:root {
  --green-900: #075f2c;
  --green-800: #0b7736;
  --green-700: #14873d;
  --green-600: #1c9848;
  --green-100: #eaf6ed;
  --green-050: #f5fbf6;
  --mint-500: #37b886;
  --gold-500: #d8a237;
  --ink: #202329;
  --muted: #667268;
  --line: #e3ebe5;
  --paper: #ffffff;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 999px;
  --shadow: 0 14px 36px rgba(22, 69, 36, 0.1);
  --fs-display: clamp(32px, 6vw, 62px);
  --fs-h1: 30px;
  --fs-h2: 24px;
  --fs-h3: 17px;
  --fs-body: 15px;
  --fs-small: 13px;
  --fs-caption: 12px;
  --section-space: clamp(52px, 5.8vw, 78px);
  --section-space-roomy: clamp(64px, 7vw, 94px);
  --section-heading-gap: 26px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  overflow-x: clip;
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  letter-spacing: 0;
}

body::before {
  position: absolute;
  inset: 0 0 auto;
  z-index: 0;
  height: 574px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.84) 30%, rgba(255, 255, 255, 0.18) 54%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.56) 0%, rgba(255, 255, 255, 0.08) 40%, rgba(255, 255, 255, 0) 69%),
    url("https://static.znxh168.com/office/hero-generated.webp") center 48% / cover no-repeat;
  content: "";
  pointer-events: none;
}

body > * {
  position: relative;
  z-index: 1;
}

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

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

.container {
  width: min(1180px, calc(100% - 72px));
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 20;
  height: 72px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.18));
  box-shadow: none;
}

.nav-shell {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 34px;
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: 190px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 39px;
  font-size: 14px;
  color: #222a24;
  white-space: nowrap;
}

.main-nav a {
  position: relative;
  padding: 28px 0 24px;
}

.main-nav a::after {
  position: absolute;
  left: 50%;
  bottom: 15px;
  width: 22px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--green-700);
  content: "";
  opacity: 0;
  transform: translateX(-50%);
}

.main-nav a.active {
  color: var(--green-700);
  font-weight: 700;
}

.main-nav a.active::after,
.main-nav a:hover::after {
  opacity: 1;
}

.consult-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 108px;
  height: 34px;
  border-radius: var(--radius-md);
  color: #fff;
  background: var(--green-800);
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(16, 126, 56, 0.18);
}

.consult-btn img {
  width: 17px;
  height: 17px;
  object-fit: cover;
  border-radius: 3px;
}

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--green-800);
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  min-height: 500px;
  background: transparent;
}

.hero-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.8) 32%, rgba(255, 255, 255, 0.12) 58%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.34) 0%, rgba(255, 255, 255, 0.04) 38%, rgba(255, 255, 255, 0) 66%);
  opacity: 1;
}

.hero-field::after {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 28%, rgba(255, 255, 255, 0.62), transparent 28%),
    radial-gradient(circle at 52% 74%, rgba(255, 244, 178, 0.24), transparent 24%);
  content: "";
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.76) 29%, rgba(255, 255, 255, 0.14) 49%, rgba(255, 255, 255, 0) 73%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.24) 0%, rgba(255, 255, 255, 0) 48%);
  content: "";
  pointer-events: none;
}

.hero::after {
  position: absolute;
  left: -5%;
  right: -5%;
  bottom: -58px;
  z-index: 3;
  height: 92px;
  border-top: 7px solid rgba(30, 142, 67, 0.28);
  border-radius: 50% 50% 0 0;
  background: #fff;
  content: "";
  transform: rotate(2deg);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  min-height: 500px;
}

.hero-copy {
  max-width: 720px;
  padding-top: 14px;
}

.hero-copy h1 {
  margin: 0;
  line-height: 1.12;
  font-size: 62px;
  font-weight: 900;
}

.hero-copy h1 span,
.hero-copy h1 strong {
  display: block;
}

.hero-copy h1 span {
  color: var(--green-800);
}

.hero-copy h1 strong {
  color: #202126;
}

.hero-copy p {
  margin: 24px 0 31px;
  color: #232a27;
  font-size: 22px;
}

.hero-actions {
  display: flex;
  gap: 32px;
}

.btn,
.small-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: var(--radius-md);
  font-weight: 700;
}

.btn {
  min-width: 154px;
  height: 48px;
  border: 1px solid var(--green-800);
  font-size: 15px;
}

.btn-primary,
.small-btn {
  color: #fff;
  background: var(--green-800);
  box-shadow: 0 12px 22px rgba(13, 124, 53, 0.18);
}

.btn-outline {
  color: var(--green-800);
  background: rgba(255, 255, 255, 0.72);
}

.stats-wrap {
  position: relative;
  z-index: 4;
  margin-top: -16px;
}

.stats-card {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  min-height: 88px;
  border: 1px solid rgba(223, 232, 225, 0.9);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 42px;
}

.stat-item + .stat-item {
  border-left: 1px solid var(--line);
}

.stat-item img {
  width: 43px;
  height: 43px;
  border-radius: 50%;
}

.stat-item span {
  display: block;
  color: #59655d;
  font-size: 13px;
  white-space: nowrap;
}

.stat-item strong {
  display: block;
  margin-top: 6px;
  color: var(--green-800);
  font-size: 28px;
  line-height: 1;
}

.stat-item em {
  color: #27322c;
  font-size: 15px;
  font-style: normal;
  font-weight: 600;
}

.expertise-section {
  position: relative;
  overflow: visible;
  background: linear-gradient(180deg, #fbfdfb 0%, #fff 68%);
  white-space: normal;
}

.expertise-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 32px;
  align-items: start;
  padding: 8px 0 4px;
}

.facts-section {
  position: relative;
  overflow: visible;
  background: linear-gradient(180deg, #fff 0%, #fbfdfb 100%);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--green-800);
  font-size: 13px;
  font-weight: 900;
}

.expertise-copy h2,
.facts-panel h2,
.faq-block h2 {
  margin: 0;
  color: var(--green-800);
  font-size: 28px;
  line-height: 1.25;
  font-weight: 900;
}

.expertise-copy p {
  margin: 16px 0 0;
  color: #47534b;
  font-size: 15px;
  line-height: 2;
}

.expertise-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.expertise-points article {
  min-height: 154px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #fff, #f9fcfa);
}

.expertise-points strong {
  display: block;
  color: #223027;
  font-size: 17px;
}

.expertise-points p {
  margin: 10px 0 0;
  color: #657069;
  font-size: 13px;
  line-height: 1.75;
}

.facts-panel {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.facts-panel dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.facts-panel div {
  min-height: 104px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
}

.facts-panel dt {
  color: var(--green-800);
  font-size: 12px;
  font-weight: 900;
}

.facts-panel dd {
  margin: 7px 0 0;
  color: #38443d;
  font-size: 14px;
  line-height: 1.65;
}

.faq-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding-top: 24px;
}

.faq-list {
  display: grid;
  gap: 0;
}

.faq-list details {
  border-top: 1px solid var(--line);
  padding: 14px 0 15px;
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  cursor: pointer;
  color: #243029;
  font-size: 15px;
  font-weight: 900;
}

.faq-list p {
  margin: 10px 0 0;
  color: #66716a;
  font-size: 13px;
  line-height: 1.8;
}

.section {
  padding: var(--section-space) 0 0;
}

.about-section {
  padding-top: clamp(36px, 4.2vw, 54px);
}

.about-grid {
  display: grid;
  grid-template-columns: 37% 63%;
  align-items: center;
  gap: 42px;
}

.section-title,
.section-heading h2,
.brand-copy h2,
.footer-contact h2 {
  margin: 0;
  color: var(--green-800);
  font-size: 30px;
  line-height: 1.2;
  font-weight: 900;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title img {
  width: 24px;
  height: 24px;
}

.about-copy p {
  margin: 36px 0 20px;
  color: #3f4943;
  font-size: 15px;
  line-height: 2;
}

.small-btn {
  min-width: 112px;
  height: 36px;
  font-size: 13px;
}

.about-icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 22px;
  max-width: 330px;
}

.about-icons div {
  display: grid;
  justify-items: center;
  gap: 8px;
  color: #515c55;
  font-size: 12px;
}

.about-icons img {
  width: 30px;
  height: 30px;
  object-fit: cover;
}

.about-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 28px rgba(25, 88, 48, 0.08);
}

.about-media img {
  width: 100%;
  height: 100%;
  min-height: 286px;
  object-fit: cover;
}

.video-play {
  position: absolute;
  left: 30%;
  top: 52%;
  width: 78px;
  height: 78px;
  border: 3px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: rgba(19, 126, 56, 0.72);
  box-shadow: 0 12px 28px rgba(0, 45, 20, 0.22);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.video-play::before {
  position: absolute;
  left: 31px;
  top: 23px;
  width: 0;
  height: 0;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid #fff;
  content: "";
}

.about-vision {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 45%;
  display: grid;
  align-content: center;
  gap: 0;
  padding: 28px 38px;
  color: #fff;
  background: linear-gradient(135deg, rgba(30, 143, 63, 0.92), rgba(18, 119, 55, 0.84));
  backdrop-filter: blur(2px);
}

.about-vision article {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 82px;
}

.about-vision article + article {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.vision-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  color: #fff;
  font-size: 12px;
  font-weight: 900;
}

.about-vision h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 900;
}

.about-vision p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  line-height: 1.55;
}

.section-heading {
  margin-bottom: var(--section-heading-gap);
}

.section-heading.center {
  text-align: center;
}

.section-heading.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.section-heading p {
  margin: 9px 0 0;
  color: #647069;
  font-size: 15px;
}

.section-heading a {
  color: var(--green-800);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.core-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.core-card,
.product-card,
.solution-card,
.news-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 10px 26px rgba(18, 71, 37, 0.06);
}

.core-card {
  position: relative;
  overflow: hidden;
  min-height: 142px;
  padding: 20px 22px 18px;
  text-align: center;
  transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease;
}

.core-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, #0c7a38, var(--mint-500) 64%, var(--gold-500));
  content: "";
  opacity: 0.86;
}

.core-card:hover {
  border-color: rgba(20, 135, 61, 0.28);
  box-shadow: 0 16px 34px rgba(18, 71, 37, 0.1);
  transform: translateY(-3px);
}

.core-card img {
  width: 58px;
  height: 58px;
  margin: 0 auto 11px;
  border-radius: 50%;
  filter: drop-shadow(0 6px 10px rgba(18, 92, 46, 0.08));
}

.core-card h3,
.product-card h3,
.solution-card h3,
.research-list h3,
.brand-values h3,
.news-card h3,
.footer-links h3 {
  margin: 0;
  font-weight: 900;
}

.core-card h3 {
  color: #1e2d24;
  font-size: 17px;
}

.core-card p {
  margin: 7px auto 0;
  max-width: 148px;
  color: #69736d;
  font-size: 13px;
  line-height: 1.7;
}

.products-section,
.solutions-section,
.research-section,
.news-section {
  padding-top: var(--section-space-roomy);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
}

.product-card {
  overflow: hidden;
  min-height: 140px;
  text-align: center;
}

.product-card > img {
  width: 100%;
  aspect-ratio: 1.42;
  object-fit: cover;
}

.product-card h3 {
  margin-top: 10px;
  color: #263129;
  font-size: 16px;
}

.product-card p {
  margin: 6px 8px 12px;
  color: #6b756e;
  font-size: 12px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 26px;
}

.solution-card {
  overflow: hidden;
}

.solution-photo {
  width: 100%;
  aspect-ratio: 1.63;
  object-fit: cover;
}

.solution-card > div {
  display: flex;
  align-items: center;
  min-height: 58px;
  padding: 9px 16px 10px;
  gap: 13px;
}

.solution-icon {
  width: 34px;
  height: 34px;
  object-fit: cover;
}

.solution-card h3 {
  color: #243228;
  font-size: 16px;
}

.solution-card p {
  margin: 5px 0 0;
  color: #6a756d;
  font-size: 12px;
}

.research-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 38%);
  align-items: stretch;
  gap: 0;
  min-height: 320px;
  overflow: hidden;
  border: 1px solid rgba(20, 135, 61, 0.12);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 18px 42px rgba(18, 71, 37, 0.08);
}

.research-panel::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(241, 249, 241, 0.94) 0%, rgba(255, 255, 255, 0.88) 62%, rgba(245, 250, 245, 0.78) 100%);
  content: "";
  pointer-events: none;
}

.research-content,
.research-visual {
  position: relative;
  z-index: 1;
}

.research-content {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-content: center;
  gap: 30px;
  padding: 30px 34px;
}

.research-numbers {
  display: grid;
  align-self: start;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(23, 133, 57, 0.13);
  border-radius: var(--radius-lg);
  background: rgba(23, 133, 57, 0.13);
  box-shadow: 0 12px 28px rgba(18, 71, 37, 0.07);
}

.research-numbers div {
  display: grid;
  grid-template-columns: 76px 1fr;
  align-items: center;
  min-height: 58px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.86);
}

.research-numbers strong {
  color: var(--green-800);
  font-size: 28px;
  line-height: 1;
}

.research-numbers span {
  color: #445149;
  font-size: 13px;
}

.research-list {
  display: grid;
  gap: 13px;
}

.research-list article {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 13px;
  align-items: start;
  padding: 12px 14px;
  border: 1px solid rgba(21, 131, 61, 0.1);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
}

.research-list article > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-md);
  color: #fff;
  background: var(--green-800);
  font-size: 10px;
  font-weight: 800;
}

.research-list h3 {
  color: var(--green-800);
  font-size: 15px;
}

.research-list p {
  margin: 3px 0 0;
  color: #67736c;
  font-size: 12px;
  line-height: 1.6;
}

.research-visual {
  min-height: 320px;
  margin: 0;
  overflow: hidden;
  background: #eaf6ed;
}

.research-visual::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 46, 22, 0) 42%, rgba(4, 46, 22, 0.34) 100%);
  content: "";
  pointer-events: none;
}

.lab-photo {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.research-visual figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 1;
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-left: 4px solid var(--green-700);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
  color: #203128;
  box-shadow: 0 14px 28px rgba(4, 46, 22, 0.12);
  backdrop-filter: blur(10px);
}

.research-visual figcaption strong {
  font-size: 16px;
  font-weight: 900;
}

.research-visual figcaption span {
  color: #657169;
  font-size: 12px;
}

.brand-section {
  position: relative;
  margin-top: clamp(48px, 5vw, 70px);
  min-height: 160px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(9, 106, 49, 0.88) 0%, rgba(7, 99, 46, 0.97) 46%, rgba(5, 92, 42, 1) 100%),
    #07632d;
}

.brand-section::after {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 36% 50%, rgba(255, 255, 255, 0.14), transparent 26%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent 38%);
  content: "";
  pointer-events: none;
}

.brand-photo {
  position: absolute;
  inset: 0 auto 0 0;
  width: 42%;
  background: url("https://static.znxh168.com/office/brand-seedling.png") left center / cover no-repeat;
}

.brand-photo::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 92, 42, 0.08), rgba(6, 92, 42, 0.72) 76%, rgba(6, 92, 42, 0.98));
  content: "";
}

.brand-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 360px 1fr;
  align-items: center;
  min-height: 160px;
  gap: 34px;
  padding: 14px 0;
}

.brand-copy {
  padding-left: 150px;
  color: #fff;
}

.brand-copy h2 {
  color: #fff;
  font-size: 32px;
  line-height: 1.15;
}

.brand-copy p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
}

.brand-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.brand-values article {
  position: relative;
  display: grid;
  grid-template-columns: 50px 1fr;
  align-items: center;
  gap: 12px;
  min-height: 82px;
  padding: 12px 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 252, 247, 0.96));
  box-shadow: 0 18px 34px rgba(0, 49, 23, 0.2);
}

.brand-values article + article {
  border-left: 1px solid rgba(255, 255, 255, 0.76);
}

.brand-values article::after {
  position: absolute;
  right: -28px;
  bottom: -34px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: rgba(21, 135, 61, 0.07);
  content: "";
}

.brand-values img {
  position: relative;
  z-index: 1;
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.brand-values h3 {
  color: var(--green-800);
  font-size: 17px;
  line-height: 1.2;
}

.brand-values p {
  margin: 7px 0 0;
  color: #6c756e;
  font-size: 12px;
  line-height: 1.45;
}

.news-section {
  padding-bottom: 36px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.news-card {
  display: grid;
  grid-template-columns: 102px 1fr;
  overflow: hidden;
  min-height: 142px;
}

.news-card > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card > div {
  padding: 15px 18px 12px;
}

.news-card time {
  color: #8b938d;
  font-size: 12px;
}

.news-card h3 {
  margin-top: 8px;
  color: #253029;
  font-size: 15px;
  line-height: 1.55;
}

.news-card p {
  margin: 10px 0 12px;
  color: #6c766f;
  font-size: 12px;
  line-height: 1.55;
}

.news-card a {
  color: var(--green-800);
  font-size: 12px;
  font-weight: 800;
}

.site-footer {
  color: #fff;
}

.footer-main {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(18, 119, 55, 0.9), rgba(12, 103, 49, 0.96)),
    #16783c;
}

.footer-main::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 8% 20%, rgba(255, 255, 255, 0.18), transparent 28%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent 38%);
  content: "";
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  gap: 58px;
  align-items: start;
  padding: 24px 0 22px;
}

.footer-contact h2 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 30px;
}

.footer-contact {
  font-style: normal;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 44px;
  margin: 0 0 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-row img {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  object-fit: contain;
  opacity: 0.95;
}

.contact-row strong,
.contact-row em {
  display: block;
}

.contact-row strong {
  font-size: 17px;
  letter-spacing: 0;
}

.contact-row em {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  font-style: normal;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 5px;
}

.footer-links div {
  min-width: 0;
  padding: 0;
  border-left: 0;
}

.footer-links h3 {
  position: relative;
  margin-bottom: 12px;
  padding-bottom: 8px;
  color: #fff;
  font-size: 15px;
  line-height: 1.2;
}

.footer-links h3::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 22px;
  height: 2px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.72);
  content: "";
}

.footer-links a {
  display: block;
  margin-top: 7px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  line-height: 1.35;
  transition: color 0.18s ease, transform 0.18s ease;
}

.footer-links a:hover {
  color: #fff;
  transform: translateX(2px);
}

.footer-bottom {
  background: #202526;
}

.bottom-grid {
  display: grid;
  grid-template-columns: 176px 1fr 210px;
  align-items: center;
  min-height: 62px;
  gap: 28px;
}

.footer-logo {
  width: 136px;
  height: auto;
}

.bottom-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  text-align: center;
}

.qr {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 6px 8px 6px 6px;
  border: 0;
  border-radius: var(--radius-lg);
  background: transparent;
  color: rgba(255, 255, 255, 0.74);
  font-size: 12px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    color 0.18s ease,
    background 0.18s ease,
    transform 0.18s ease;
}

.qr:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.qr:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.82);
  outline-offset: 3px;
}

.qr img {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

body.modal-open {
  overflow: hidden;
}

.wechat-modal[hidden] {
  display: none;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
}

.wechat-modal__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(5, 20, 12, 0.62);
  backdrop-filter: blur(8px);
  cursor: pointer;
  animation: wechatBackdropIn 0.22s ease both;
}

.wechat-modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 360px);
  padding: 30px 30px 28px;
  overflow: hidden;
  border: 1px solid rgba(23, 120, 60, 0.16);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 252, 246, 0.98)),
    #fff;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.24);
  color: #17251d;
  text-align: center;
  animation: wechatPanelIn 0.32s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.wechat-modal__panel::before {
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, #0b7736, var(--mint-500));
  content: "";
}

.wechat-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(23, 120, 60, 0.12);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.86);
  color: #3c4a42;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}

.wechat-modal__close:hover {
  background: #0b7736;
  color: #fff;
  transform: rotate(90deg);
}

.wechat-modal__close:focus-visible {
  outline: 2px solid rgba(11, 119, 54, 0.52);
  outline-offset: 3px;
}

.wechat-modal__eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  margin-bottom: 12px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  background: rgba(11, 119, 54, 0.1);
  color: #0b7736;
  font-size: 12px;
  font-weight: 800;
}

.wechat-modal h2 {
  margin: 0;
  color: #13251b;
  font-size: 24px;
  line-height: 1.28;
}

.wechat-modal p {
  margin: 10px auto 20px;
  max-width: 260px;
  color: #667369;
  font-size: 14px;
  line-height: 1.65;
}

.wechat-modal__qr {
  display: block;
  width: min(100%, 260px);
  height: auto;
  margin: 0 auto;
  padding: 10px;
  border: 1px solid rgba(11, 119, 54, 0.12);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 14px 36px rgba(11, 119, 54, 0.16);
}

.wechat-modal.is-closing .wechat-modal__backdrop {
  animation: wechatBackdropOut 0.18s ease both;
}

.wechat-modal.is-closing .wechat-modal__panel {
  animation: wechatPanelOut 0.18s ease both;
}

@keyframes wechatBackdropIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes wechatBackdropOut {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

@keyframes wechatPanelIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.94);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes wechatPanelOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
}

@media (prefers-reduced-motion: reduce) {
  .wechat-modal__backdrop,
  .wechat-modal__panel,
  .wechat-modal.is-closing .wechat-modal__backdrop,
  .wechat-modal.is-closing .wechat-modal__panel {
    animation: none;
  }
}

@media (max-width: 1180px) {
  .container {
    width: min(100% - 40px, 1060px);
  }

  .main-nav {
    gap: 22px;
  }

  .stat-item {
    padding: 18px 24px;
  }

  .research-panel {
    grid-template-columns: minmax(0, 1fr) 340px;
  }

  .research-content {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
    padding: 28px;
  }

  .brand-copy {
    padding-left: 150px;
  }
}

@media (max-width: 960px) {
  :root {
    --section-space: 48px;
    --section-space-roomy: 58px;
    --section-heading-gap: 22px;
  }

  .site-header {
    height: auto;
    min-height: 68px;
  }

  .nav-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto 38px;
    justify-content: stretch;
    align-items: center;
    padding: 14px 0;
    gap: 16px;
  }

  .brand {
    grid-column: 1;
  }

  .brand img {
    width: 150px;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
    order: 3;
    grid-column: 3;
    justify-self: end;
  }

  .consult-btn {
    order: 2;
    grid-column: 2;
  }

  .main-nav {
    display: none;
    order: 4;
    grid-column: 1 / -1;
    flex-basis: 100%;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: #fff;
  }

  .site-header.nav-open .main-nav {
    display: grid;
  }

  .main-nav a {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
  }

  .main-nav a::after {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  body::before {
    height: 760px;
    background-position: 60% 48%;
  }

  .hero-field {
    background-position: 56% bottom;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 42px 0 76px;
  }

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

  .hero-copy p {
    font-size: 18px;
  }

  .about-vision {
    width: 48%;
    padding: 22px 24px;
  }

  .stats-card,
  .core-grid,
  .product-grid,
  .solution-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid,
  .solution-grid {
    gap: 20px;
  }

  .core-card:last-child {
    grid-column: 1 / -1;
    justify-self: center;
    width: calc(50% - 9px);
  }

  .expertise-grid,
  .facts-panel,
  .faq-block {
    grid-template-columns: 1fr;
  }

  .expertise-points {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stat-item:nth-child(3) {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .stat-item:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .about-grid,
  .brand-inner,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .about-copy {
    order: 1;
  }

  .about-media {
    order: 2;
  }

  .research-panel {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .research-content {
    grid-template-columns: 1fr;
  }

  .research-numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .research-numbers div {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 7px;
    min-height: 78px;
  }

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

  .research-visual,
  .lab-photo {
    min-height: 290px;
  }

  .brand-photo {
    width: 310px;
  }

  .brand-inner {
    padding: 34px 0;
    gap: 24px;
  }

  .brand-copy {
    padding-left: 250px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    padding-bottom: 24px;
  }

  .bottom-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 18px 0;
    text-align: center;
  }
}

/* ===== 移动端悬浮咨询入口（≤640px 显示） ===== */
.mobile-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  box-shadow: 0 -8px 22px rgba(22, 69, 36, 0.12);
}

.mobile-cta__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  font-size: 15px;
  font-weight: 800;
  color: #fff;
}

.mobile-cta__btn img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.mobile-cta__tel {
  background: var(--green-700);
}

.mobile-cta__consult {
  background: var(--green-800);
}

.mobile-cta__btn:active {
  filter: brightness(0.95);
}

@media (max-width: 640px) {
  :root {
    --section-space: 38px;
    --section-space-roomy: 46px;
    --section-heading-gap: 18px;
  }

  .container {
    width: min(100% - 28px, 560px);
  }

  .consult-btn {
    display: none;
  }

  .nav-toggle {
    display: grid !important;
    place-items: center;
    order: 2;
    position: fixed;
    top: 14px;
    right: auto;
    left: clamp(158px, calc(100vw - 52px), 338px);
    z-index: 60;
    width: 38px;
    height: 38px;
    border-color: rgba(11, 119, 54, 0.22);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 8px 18px rgba(22, 69, 36, 0.1);
  }

  .nav-toggle span {
    width: 18px;
    margin: 2px 0;
  }

  .hero-inner {
    padding: 30px 0 54px;
  }

  body::before {
    height: 590px;
    background-position: 66% 42%;
  }

  .hero-field {
    background-position: 60% bottom;
  }

  .hero-copy h1 {
    font-size: 32px;
  }

  .hero-copy p {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-start;
  }

  .btn {
    width: auto;
    min-width: 132px;
    height: 42px;
  }

  .about-media img {
    min-height: 260px;
  }

  .about-vision {
    position: static;
    width: 100%;
    padding: 20px 22px;
    background: linear-gradient(135deg, rgba(30, 143, 63, 0.96), rgba(18, 119, 55, 0.95));
  }

  .about-vision article {
    min-height: 70px;
  }

  .video-play {
    left: 50%;
    top: 130px;
    width: 64px;
    height: 64px;
  }

  .video-play::before {
    left: 26px;
    top: 19px;
    border-top-width: 12px;
    border-bottom-width: 12px;
    border-left-width: 19px;
  }

  .stats-card,
  .research-panel,
  .brand-values,
  .expertise-points {
    grid-template-columns: 1fr;
  }

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

  .product-grid,
  .solution-grid {
    gap: 14px;
  }

  .core-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .core-card:last-child {
    width: 100%;
  }

  .stat-item,
  .stat-item + .stat-item,
  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-left: 1px solid var(--line);
    border-top: 1px solid var(--line);
    padding: 14px 12px;
    gap: 10px;
  }

  .stat-item:nth-child(odd) {
    border-left: none;
  }

  .stat-item:nth-child(1),
  .stat-item:nth-child(2) {
    border-top: none;
  }

  .stat-item img {
    width: 36px;
    height: 36px;
  }

  .stat-item span {
    font-size: 11px;
    white-space: normal;
  }

  .stat-item strong {
    font-size: 24px;
  }

  .about-icons {
    grid-template-columns: repeat(2, 1fr);
  }

  .expertise-section {
    padding-top: 34px;
  }

  .expertise-grid {
    padding-top: 24px;
  }

  .expertise-copy h2,
  .facts-panel h2,
  .faq-block h2 {
    font-size: 24px;
  }

  .facts-panel dl {
    grid-template-columns: 1fr;
  }

  .section-heading.split {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .research-panel {
    padding: 0;
  }

  .research-content {
    padding: 18px 14px 20px;
  }

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

  .research-numbers div {
    min-height: 72px;
    padding: 0 14px;
  }

  .research-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .research-visual,
  .lab-photo {
    min-height: 260px;
  }

  .research-visual figcaption {
    left: 14px;
    right: 14px;
    bottom: 14px;
  }

  .brand-section {
    margin-top: 40px;
    min-height: auto;
  }

  .brand-photo {
    width: 100%;
    opacity: 0.28;
  }

  .brand-copy {
    padding-left: 0;
  }

  .brand-copy h2 {
    font-size: 28px;
  }

  .brand-values {
    gap: 12px;
  }

  .brand-values article {
    min-height: 82px;
    padding: 14px 18px;
  }

  .brand-values article + article {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.76);
  }

  .news-card {
    grid-template-columns: 96px 1fr;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-row {
    display: flex;
    margin: 0 0 16px;
  }

  .mobile-cta {
    display: grid;
  }

  body {
    padding-bottom: 52px;
  }
}