/* ===== Design Tokens — 11阶绿色色值体系 ===== */
:root {
  /* ===== 11阶绿色色值表 ===== */
  --green-50:  #f0f7f0;   /* 页面最浅背景、Hero区、Stats区 */
  --green-100: #dce9dc;   /* 替代区块背景、Products区 */
  --green-200: #bdd7be;   /* 统一边框色（替代所有灰色边框） */
  --green-300: #8cc08e;   /* 浅标签背景色、弱态高亮 */
  --green-400: #5aa65e;   /* 输入框聚焦色、交互中间态 */
  --green-500: #35893a;   /* 品牌次级强调、进度条、悬停反馈 */
  --green-600: #2a7a2e;   /* 品牌核心色 — 主按钮、导航激活态、数据卡数字 */
  --green-700: #1d5b20;   /* 页头渐变深端、按钮hover */
  --green-800: #144016;   /* CTA深色区块背景 */
  --green-900: #0c2d0e;   /* 页脚背景 */
  --green-950: #061807;   /* 页脚底部版权区 */

  /* ===== Accent — 琥珀金（仅CTA+荣誉，≤5%） ===== */
  --color-accent: #c49a3a;
  --color-accent-bg: #fdf6e8;

  /* ===== Neutral / Gray Scale ===== */
  --neutral-900: #1A1A1A;
  --neutral-700: #404040;
  --neutral-500: #737373;
  --neutral-300: #D4D4D4;
  --neutral-100: #F5F5F5;
  --neutral-white: #FFFFFF;

  /* ===== Semantic Colors ===== */
  --color-warning: #e6a23c;
  --color-error: #c84141;
  --color-info: #2e7dd1;

  /* ===== Shadow System — lg+使用绿色tint ===== */
  --shadow-xs:  0 1px 2px rgba(26,26,26,0.04);
  --shadow-sm:  0 2px 4px rgba(26,26,26,0.06);
  --shadow-md:  0 4px 12px rgba(26,26,26,0.08);
  --shadow-lg:  0 8px 24px rgba(42,122,46,0.10);
  --shadow-xl:  0 16px 40px rgba(42,122,46,0.12);
  --shadow-2xl: 0 24px 64px rgba(42,122,46,0.14);

  /* ===== Spacing System ===== */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* ===== Typography ===== */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --font-display: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;

  /* ===== Radius ===== */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ===== Z-index ===== */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-navbar: 1000;
  --z-modal: 1100;
  --z-toast: 1200;

  /* ===== Transition & Animation ===== */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--neutral-700);
  background-color: var(--green-50);
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

/* ===== Section Backgrounds — 浅→深递进 ===== */
.section-white {
  background-color: var(--neutral-white);
}

.section-green-50 {
  background-color: var(--green-50);
}

.section-green-100 {
  background-color: var(--green-100);
}

.section-green-800 {
  background-color: var(--green-800);
  color: rgba(255, 255, 255, 0.85);
}

.section-green-900 {
  background-color: var(--green-900);
}

/* Legacy aliases for backward compatibility */
.section-subtle {
  background-color: var(--green-50);
}

.section-dark {
  background-color: var(--green-800);
  color: rgba(255, 255, 255, 0.85);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-8);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: var(--space-3);
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background-color: var(--green-600);
}

.section-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--neutral-900);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--neutral-500);
}

/* 深色区块反白规则 */
.section-green-800 .section-title {
  color: #FFFFFF;
}

.section-green-800 .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

.section-dark .section-title {
  color: #FFFFFF;
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

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

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

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

/* ===== Navigation — white背景 + green-200边框 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-navbar);
  height: 96px;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--green-200);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 23px;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.brand-tagline {
  font-size: 16px;
  color: var(--neutral-500);
  line-height: 1.3;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--neutral-700);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav-link:hover {
  color: var(--green-600);
  background-color: var(--green-50);
}

.nav-link.active {
  color: var(--green-600);
  background-color: var(--green-100);
}

.nav-cta {
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--neutral-900);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons — green-600主色体系 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--green-600);
  color: #FFFFFF;
  border-color: var(--green-600);
}

.btn-primary:hover {
  background-color: var(--green-700);
  border-color: var(--green-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(42,122,46,0.12);
}

.btn-secondary {
  background-color: var(--green-50);
  color: var(--green-600);
  border-color: var(--green-200);
}

.btn-secondary:hover {
  border-color: var(--green-400);
  background-color: var(--green-100);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #FFFFFF;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: #b08a32;
  border-color: #b08a32;
  transform: translateY(-1px);
}

.btn-buy {
  background-color: #F58A07;
  color: #FFFFFF;
  border: none;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-buy:hover {
  background-color: #d87706;
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--green-600);
  border-color: var(--green-200);
}

.btn-outline:hover {
  border-color: var(--green-600);
  background-color: var(--green-50);
}

.btn-ghost {
  background-color: transparent;
  color: var(--neutral-700);
  padding: 12px 20px;
  font-size: 15px;
  border: none;
}

.btn-ghost:hover {
  color: var(--green-600);
  background-color: var(--green-50);
  border-radius: var(--radius-sm);
}

.btn-white {
  background-color: #FFFFFF;
  color: var(--green-700);
  border-color: #FFFFFF;
}

.btn-white:hover {
  background-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 17px;
}

/* ===== Cards — green-200统一边框 ===== */
.card {
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* Green top border card variant */
.card-green {
  border-top: 3px solid var(--green-600);
}

.card-green:hover {
  box-shadow: var(--shadow-lg);
}

/* Accent top border card variant */
.card-accent {
  border-top: 3px solid var(--color-accent);
}

.card-accent:hover {
  box-shadow: var(--shadow-lg);
}

/* Legacy alias */
.card-blue {
  border-top: 3px solid var(--green-600);
}

.card-blue:hover {
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: var(--green-100);
  color: var(--green-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-icon-accent {
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
}

/* Legacy alias */
.card-icon-blue {
  background-color: var(--green-100);
  color: var(--green-600);
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-2);
}

.card-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--neutral-500);
}

.card-product {
  padding: 0;
  overflow: hidden;
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.card-product .card-image {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
  background-color: var(--neutral-100);
  border-radius: 0;
}

.card-product .card-body {
  padding: var(--space-5);
}

.card-product .card-title {
  font-size: 18px;
  margin-bottom: var(--space-2);
}

.product-category-tag {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: 14px;
  color: var(--green-600);
  font-weight: 500;
}

/* ===== Stat Cards (Data) ===== */
.stat-card {
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.stat-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--green-600);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 15px;
  color: var(--neutral-500);
}

/* ===== Products Center Section (参考图样式) ===== */
.products-header {
  text-align: center;
  margin-bottom: var(--space-7);
}

.products-main-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.products-title-line {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400), var(--color-accent));
  border-radius: 2px;
  margin: 0 auto;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
  flex-wrap: wrap;
}

.filter-tab {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  border: 1px solid var(--green-200);
  background-color: var(--neutral-white);
  color: var(--neutral-700);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-tab:hover {
  border-color: var(--green-400);
  color: var(--green-600);
}

.filter-tab.active {
  background-color: var(--green-600);
  color: #FFFFFF;
  border-color: var(--green-600);
}

/* ===== Products Slider ===== */
.products-slider-wrapper {
  position: relative;
}

.products-slider {
  display: flex;
  gap: var(--space-5);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-2) 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.products-slider::-webkit-scrollbar {
  display: none;
}

.products-slider .slider-item {
  flex: 0 0 calc(25% - 18px);
  scroll-snap-align: start;
  min-width: 260px;
}

.slider-arrow {
  position: absolute;
  top: 40%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  color: var(--green-600);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.slider-arrow:hover {
  background-color: var(--green-600);
  color: #FFFFFF;
  border-color: var(--green-600);
}

.slider-arrow-prev {
  left: -22px;
}

.slider-arrow-next {
  right: -22px;
}

.slider-arrow svg {
  width: 20px;
  height: 20px;
}

/* ===== Tech Section (参考图样式) ===== */
.tech-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.tech-main-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.tech-title-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  border-radius: 2px;
  margin: 0 auto;
}

.tech-grid {
  gap: var(--space-5);
}

.tech-card {
  position: relative;
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  padding-top: calc(var(--space-6) + 4px);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.tech-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.tech-card-top-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
}

.tech-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--green-600);
}

.tech-icon svg {
  width: 100%;
  height: 100%;
}

/* ===== News Section ===== */
.news-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.news-main-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.news-title-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  border-radius: 2px;
  margin: 0 auto;
}

.news-grid {
  gap: var(--space-5);
}

.news-card {
  padding: 0;
  overflow: hidden;
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.news-image {
  aspect-ratio: 16 / 10;
  width: 100%;
  object-fit: cover;
  background-color: var(--neutral-100);
}

.news-body {
  padding: var(--space-5);
}

.news-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--neutral-900);
  line-height: 1.5;
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--neutral-500);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-link {
  font-size: 14px;
  font-weight: 500;
  color: #0ea5a5;
  text-decoration: none;
  transition: color var(--transition-base);
}

.news-link:hover {
  color: #0d7373;
}

.btn-news-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  background-color: var(--green-600);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-news-more:hover {
  background-color: #1e5f22;
  transform: translateY(-2px);
}

.company-intro-text {
  max-height: 200px;
  overflow: hidden;
  position: relative;
  transition: max-height 0.4s ease;
  margin-bottom: 16px;
}

.company-intro-text p {
  margin-bottom: 20px;
  color: var(--neutral-700);
  line-height: 1.8;
  text-indent: 2em;
}

.company-intro-text p:last-child {
  margin-bottom: 0;
}

.company-intro-text::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,1));
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.company-intro-text.expanded {
  max-height: 2000px;
}

.company-intro-text.expanded::after {
  opacity: 0;
}

.btn-expand {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border: 1px solid var(--green-200);
  border-radius: var(--radius-full);
  background-color: var(--neutral-white);
  color: var(--green-600);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-expand:hover {
  background-color: var(--green-50);
  border-color: var(--green-400);
}

.btn-expand::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

.btn-expand.expanded::after {
  transform: rotate(-135deg);
}

/* ===== About Section (参考图样式) ===== */
.about-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.about-main-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.about-title-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  border-radius: 2px;
  margin: 0 auto;
}

.about-content-grid {
  display: grid;
  grid-template-columns: 1fr 540px;
  gap: 64px;
  align-items: center;
}

.about-subtitle {
  font-size: 28px;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.4;
  margin-bottom: var(--space-5);
}

.about-subtitle .text-green {
  color: var(--green-600);
}

.about-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--neutral-600);
  text-indent: 2em;
  margin-bottom: var(--space-4);
}

.about-stats-row {
  display: flex;
  gap: 64px;
  margin-top: var(--space-7);
}

.about-stat-item {
  text-align: left;
}

.about-stat-number {
  font-size: 32px;
  font-weight: 700;
  color: #458e14;
  line-height: 1;
}

.about-stat-plus {
  font-size: 16px;
  color: #458e14;
  vertical-align: super;
  margin-left: 2px;
  position: relative;
  top: -0.15em;
}

.about-stat-label {
  font-size: 15px;
  color: var(--neutral-500);
  margin-top: var(--space-2);
}

.about-image-wrap {
  position: relative;
  width: 540px;
  height: 380px;
  flex-shrink: 0;
}

.about-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: block;
}

.about-image-decor-top {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--green-400), var(--green-200));
  border-radius: 50%;
  opacity: 0.7;
  z-index: 0;
}

.about-image-decor-bottom {
  position: absolute;
  bottom: -32px;
  left: -32px;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--green-200), var(--green-100));
  border-radius: 50%;
  opacity: 0.5;
  z-index: -1;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--neutral-700);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--neutral-900);
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: 10px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--neutral-500);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--green-400);
  box-shadow: 0 0 0 4px rgba(90,166,98,0.12);
}

.input-error {
  border-color: var(--color-error);
}

.input-error:focus {
  box-shadow: 0 0 0 4px rgba(200, 65, 65, 0.12);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.form-hint {
  font-size: 13px;
  color: var(--neutral-500);
  margin-top: var(--space-2);
}

.form-error {
  font-size: 13px;
  color: var(--color-error);
  margin-top: var(--space-2);
}

/* ===== Badges — green体系 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
}

.badge-primary {
  background-color: var(--green-100);
  color: var(--green-600);
}

.badge-accent {
  background-color: var(--color-accent-bg);
  color: #a07e28;
}

.badge-neutral {
  background-color: var(--neutral-100);
  color: var(--neutral-700);
}

/* Legacy alias — badge-secondary maps to badge-primary */
.badge-secondary {
  background-color: var(--green-100);
  color: var(--green-600);
}

/* ===== Hero — 全宽图片横幅 1920×700 ===== */
.hero {
  position: relative;
  padding: 0;
  background-color: var(--green-50);
  overflow: hidden;
}

.hero-image-full {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
}

.hero-image-full img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* ===== Hero Slider — 轮播图 ===== */
.hero-slider {
  position: relative;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: none;
}

.hero-slide.active {
  position: relative;
  opacity: 1;
  pointer-events: auto;
}

.hero-slide img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(12,45,14,0.35) 0%, rgba(42,122,46,0.15) 50%, rgba(255,255,255,0.05) 100%);
}

.hero-slide-content {
  text-align: center;
  max-width: 720px;
  padding: 0 32px;
}

.hero-slide-title {
  font-size: 42px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.02em;
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}

.hero-slide-subtitle {
  font-size: 20px;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.05em;
  line-height: 1.5;
  text-shadow: 0 1px 8px rgba(0,0,0,0.25);
}

.hero-slider-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.hero-dot.active {
  background-color: #FFFFFF;
  transform: scale(1.2);
}

.hero-dot:hover {
  background-color: rgba(255,255,255,0.8);
}

/* Legacy hero styles — kept for other pages */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
}

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

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--green-600);
  background-color: var(--green-100);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

.hero-title .text-green {
  color: var(--green-600);
}

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--neutral-500);
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ===== Page Header — green-700→green-600渐变 ===== */
.page-header {
  position: relative;
  padding: 80px 0 53px;
  background: linear-gradient(135deg, var(--green-700) 0%, var(--green-600) 100%);
  color: #FFFFFF;
  text-align: center;
  overflow: hidden;
}

.page-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, rgba(255,255,255,0.15), transparent);
  pointer-events: none;
}

.page-header-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.page-header-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-4);
}

.breadcrumb a:hover {
  color: #FFFFFF;
}

/* ===== CTA / Dark Section — green-800 ===== */
.section-green-800 {
  background-color: var(--green-800);
  position: relative;
}

.section-green-800::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(42,122,46,0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(196,154,58,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.section-dark {
  background-color: var(--green-800);
  background-image: linear-gradient(135deg, var(--green-800) 0%, var(--green-700) 100%);
  color: rgba(255, 255, 255, 0.85);
  position: relative;
}

.section-dark::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(42,122,46,0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(196,154,58,0.06) 0%, transparent 50%);
  pointer-events: none;
}

/* ===== Footer — green-900 → green-950 ===== */
.footer {
  background-color: var(--green-900);
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .brand-logo {
  width: 64px;
  height: 64px;
  background: #FFFFFF;
  padding: 6px;
  margin-bottom: var(--space-4);
}

.footer-brand .brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.footer-brand .brand-name {
  color: #FFFFFF;
}

.footer-brand .brand-tagline {
  color: rgba(255, 255, 255, 0.6);
}

.footer-desc {
  margin-top: var(--space-4);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  margin-bottom: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  background-color: var(--green-950);
  margin: 0 -24px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Contact Info Panel ===== */
.contact-info-panel {
  background-color: var(--neutral-white);
  border: 1px solid var(--green-200);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--green-100);
}

.contact-info-item:last-of-type {
  border-bottom: none;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background-color: #EAF3DE;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-icon svg {
  width: 22px;
  height: 22px;
}

.contact-info-content {
  flex: 1;
}

.contact-info-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--neutral-500);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--neutral-900);
  line-height: 1.5;
}

.follow-us-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--green-100);
}

.follow-us-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: 16px;
}

.social-icons-row {
  display: flex;
  gap: 12px;
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #3B6D11;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}

.social-icon-btn:hover {
  background-color: #2a5a0a;
  transform: translateY(-2px);
}

.social-icon-btn svg {
  width: 18px;
  height: 18px;
}

/* ===== QR Code Items ===== */
.qr-code-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-code-img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--green-200);
  background: #fff;
  padding: 4px;
}

.qr-code-label {
  font-size: 13px;
  color: var(--neutral-700);
  font-weight: 500;
}

/* ===== Contact Map Section ===== */
.contact-map-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--green-100);
}

.contact-map-wrapper {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 12px;
  border: 1px solid var(--green-200);
  position: relative;
  aspect-ratio: 5 / 2.25;
}

.contact-map-canvas {
  width: 100%;
  height: 100%;
  display: block;
  background-color: #f5f5f5;
}

/* Leaflet popup 主题适配 */
.leaflet-popup-content-wrapper {
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.leaflet-popup-tip {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.ztc-marker {
  background: transparent !important;
  border: none !important;
}

.contact-map-caption {
  text-align: center;
  font-size: 13px;
  color: var(--neutral-600);
  margin-top: 10px;
  font-weight: 500;
}

/* ===== Gradient Info Card ===== */
.info-card-green {
  background: linear-gradient(135deg, var(--green-600) 0%, var(--green-700) 100%);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #FFFFFF;
}

/* ===== Utilities ===== */
.text-center {
  text-align: center;
}

.text-green {
  color: var(--green-600);
}

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section {
    padding: 72px 0;
  }

  .hero-image-full img {
    height: 600px;
  }

  .hero-slide img {
    height: 600px;
  }

  .hero-slide-title {
    font-size: 36px;
  }

  .hero-slide-subtitle {
    font-size: 18px;
  }

  .hero-title {
    font-size: 40px;
  }

  .section-title {
    font-size: 28px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-content-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-image-wrap {
    order: -1;
    max-width: 540px;
    width: 100%;
    height: auto;
    aspect-ratio: 540 / 380;
    margin: 0 auto;
  }

  .about-stats-row {
    gap: 36px;
  }

  .products-slider .slider-item {
    flex: 0 0 calc(50% - 12px);
  }
}

@media (max-width: 768px) {
  .navbar {
    height: 86px;
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 86px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--neutral-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 4px;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s ease;
  }

  .nav-menu.open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-link {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-4);
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .hero-image-full img {
    height: 500px;
  }

  .hero-slide img {
    height: 400px;
  }

  .hero-slide-title {
    font-size: 26px;
  }

  .hero-slide-subtitle {
    font-size: 15px;
  }

  .hero-slide-content {
    padding: 0 20px;
  }

  .hero-slider-dots {
    bottom: 18px;
  }

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

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image {
    order: -1;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 24px;
  }

  .section-desc {
    font-size: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .page-header {
    padding: 96px 0 64px;
  }

  .page-header-title {
    font-size: 32px;
  }

  .products-main-title {
    font-size: 28px;
  }

  .tech-main-title {
    font-size: 28px;
  }

  .news-main-title {
    font-size: 28px;
  }

  .filter-tab {
    padding: 8px 18px;
    font-size: 14px;
  }

  .slider-arrow {
    display: none;
  }

  .products-slider .slider-item {
    flex: 0 0 85%;
  }

  .about-main-title {
    font-size: 28px;
  }

  .about-subtitle {
    font-size: 22px;
  }

  .about-stats-row {
    gap: 24px;
  }

  .about-stat-number {
    font-size: 22px;
  }

  .about-image-decor-top {
    width: 36px;
    height: 36px;
    top: -10px;
    right: -10px;
  }

  .about-image-decor-bottom {
    width: 80px;
    height: 80px;
    bottom: -20px;
    left: -20px;
  }
}