:root {
  --yellow: #FFD100;
  --yellow-dark: #E6BC00;
  --yellow-light: #FFF8E1;
  --orange: #ff3838;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --text: #222222;
  --text-secondary: #555555;
  --text-light: #888888;
  --bg: #FAFAFA;
  --bg-dark: #F5F5F5;
  --border: #EEEEEE;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

/* --- 通用区块 --- */
.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--black);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

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

.section-desc {
  text-align: center;
  font-size: 17px;
  color: var(--text-light);
  margin-top: 12px;
}

.section-header {
  margin-bottom: 48px;
}

.view-all {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  color: var(--text-light);
  transition: color var(--transition);
}

.view-all:hover {
  color: var(--orange);
}

.view-all svg {
  transition: transform var(--transition);
}

.view-all:hover svg {
  transform: translateX(3px);
}
.footer-link{
  text-decoration: underline;
}
.footer-divider{
  margin: 0 8px;
}
/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--yellow);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--yellow-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 209, 0, 0.4);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: white;
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
  padding: 12px 36px;
}

.btn-outline-dark:hover {
  border-color: var(--yellow);
  color: var(--orange);
  background: var(--yellow-light);
}

/* ====== 顶部导航 ====== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  font-weight: 500;
}
.logo svg{
  height: 32px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

/* 下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-family: inherit;
}

.dropdown-btn:hover {
  color: var(--orange);
  background: var(--bg-dark);
}

.dropdown-btn svg {
  transition: transform var(--transition);
}

.dropdown:hover .dropdown-btn svg {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  min-width: 320px;
  z-index: 100;
  border: 1px solid var(--border);
}

.dropdown:hover .dropdown-menu {
  display: block;
  animation: dropdownIn 0.2s ease-out;
}

@keyframes dropdownIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-grid {
  display: flex;
  gap: 32px;
}

.dropdown-col h4 {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dropdown-col a {
  display: block;
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
  transition: color var(--transition);
}

.dropdown-col a:hover {
  color: var(--orange);
}

/* 语言切换 */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
}

.lang-item {
  color: var(--text-light);
  transition: color var(--transition);
}

.lang-item:hover,
.lang-item.active {
  color: var(--orange);
}

.lang-divider {
  color: var(--border);
  margin: 0 4px;
}

/* ====== Hero 区域 ====== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 680px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(255, 209, 0, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 30%, rgba(255, 152, 0, 0.1) 0%, transparent 50%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255, 209, 0, 0.3);
  border-radius: 50%;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 720px;
}

.hero-title {
  font-size: 72px;
  font-weight: 800;
  color: var(--yellow);
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 28px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  animation: bounceDown 2s ease-in-out infinite;
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- 入场动画 --- */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUpIn 0.8s ease-out forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.2s; }
.delay-5 { animation-delay: 0.3s; }
.delay-6 { animation-delay: 0.4s; }

@keyframes fadeUpIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- 滚动显示动画 --- */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-up {
  transform: translateY(40px);
}

.reveal-left {
  transform: translateX(-40px);
}

.reveal-right {
  transform: translateX(40px);
}

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translate(0);
}

/* ====== 关于我们 ====== */
.about {
  padding: 120px 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text .section-title {
  margin-bottom: 28px;
}

.about-paragraphs p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.9;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -1px;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

.about-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-img-wrapper {
  position: relative;
}

.about-img-placeholder {
  width: 340px;
  height: 340px;
  /* background: linear-gradient(135deg, var(--yellow-light), rgba(255, 152, 0, 0.05)); */
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  /* border: 1px solid rgba(255, 209, 0, 0.15); */
}

.about-img-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 209, 0, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulseGlow 4s ease-in-out infinite;
  z-index: 0;
}

@keyframes pulseGlow {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0.8; }
}

/* ====== 业务生态 ====== */
.business {
  padding: 120px 0;
  background: var(--bg);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.business-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.business-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 209, 0, 0.3);
}

.business-icon {
  margin-bottom: 20px;
  display: inline-flex;
}

.business-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.business-card p {
  font-size: 14px;
  color: var(--text-light);
}

/* ====== 使命与价值观 ====== */
.mission {
  padding: 120px 0;
  background: var(--white);
}

.mission-quote {
  text-align: center;
  margin: 40px 0 64px;
  position: relative;
}

.quote-mark {
  display: block;
  margin: 0 auto 20px;
}

.mission-quote p {
  font-size: 32px;
  font-weight: 300;
  color: var(--black);
  line-height: 1.5;
  letter-spacing: 1px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.value-item {
  text-align: center;
  padding: 32px 20px;
  transition: transform var(--transition);
}

.value-item:hover {
  transform: translateY(-4px);
}

.value-icon-wrap {
  margin-bottom: 20px;
}

.value-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.value-item p {
  font-size: 14px;
  color: var(--text-light);
}

/* ====== 最新动态 ====== */
.news {
  padding: 120px 0;
  background: var(--bg);
}

.news .section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 209, 0, 0.2);
}

.news-card-img {
  height: 180px;
  overflow: hidden;
}

.news-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s ease;
}

.news-card:hover .news-img-placeholder {
  transform: scale(1.05);
}

.news-card-body {
  padding: 20px;
}

.news-date {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.news-card-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-footer {
  text-align: center;
  margin-top: 48px;
}

/* ====== 联系我们 ====== */
.contact {
  padding: 120px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.contact-info .section-title {
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--text);
  transition: all var(--transition);
  border: 1px solid transparent;
}

.contact-link:hover {
  background: var(--yellow-light);
  border-color: rgba(255, 209, 0, 0.3);
  color: var(--orange);
}

.contact-image {
  display: flex;
  justify-content: center;
}

.contact-img-placeholder {
  width: 100%;
  max-width: 400px;
}

/* ====== 底部 ====== */
.footer {
  background: #1A1A1A;
  color: #999;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2.5fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand{
  display: flex;
  align-items: center;
  font-weight: 500;
  color: #FFF;
  font-size: 20px;
}
.footer-brand svg{
  margin-right: 12px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: #777;
  max-width: 300px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
}
.footer-col{
  margin-right: 30px;
  display: flex;
  align-items: center;
  
}

.footer-col h4 {
  font-size: 15px;
  color: #DDD;
  font-weight: 500;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: #888;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--yellow);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 12px;
  color: #666;
  
}
.footer-beian-icon{
  margin-right: 6px;
  height: 16px;
  display: inline-block;
}

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-image {
    order: -1;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 48px;
  }

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

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

  .mission-quote p {
    font-size: 24px;
  }
}

@media (max-width: 768px) {
  .header-nav {
    gap: 12px;
  }

  .lang-switch {
    display: none;
  }

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

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

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

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

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

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

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

  .hero-desc {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .about, .business, .mission, .news, .contact {
    padding: 80px 0;
  }
}