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

/* 桌面端隐藏移动端底部导航栏 */
.mobile-bottom-nav {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

/* 页面滚动渐入动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

:root {
  --bg-start: #b8d5ff;
  --bg-end: #c6f6d1;
  --glass: rgba(255, 255, 255, 0.45);
  --glass-strong: rgba(255, 255, 255, 0.9);
  --text: #0a4ab6;
  --muted: rgba(10, 74, 182, 0.6);
  --shadow: 0 25px 60px rgba(93, 125, 173, 0.35);
  --shadow-hover: 0 30px 70px rgba(93, 125, 173, 0.45);
  --shadow-soft: 0 10px 30px rgba(93, 125, 173, 0.2);
  --blur: blur(24px);
  --radius-pill: 999px;
  --radius-card: 20px;
  --dark: #0a1c38;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* 世界级字体系统 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Consolas", "Liberation Mono", "Menlo", "Courier New", monospace;
  
  /* 字体权重 */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* 字体优化 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-start: #1a1a2e;
    --bg-end: #16213e;
    --glass: rgba(255, 255, 255, 0.1);
    --glass-strong: rgba(255, 255, 255, 0.2);
    --text: #e0e0e0;
    --muted: rgba(224, 224, 224, 0.6);
    --shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 30px 70px rgba(0, 0, 0, 0.6);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.3);
    --dark: #e0e0e0;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-weight: var(--font-normal);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  background: linear-gradient(120deg, var(--bg-start), var(--bg-end));
  color: var(--text);
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  /* 恢复桌面端的全局内边距，保持原有布局 */
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1.5rem, 4vw, 3rem) 0;
  overflow-x: hidden;
}

/* 移动端强制移除body的padding - 必须在body定义后立即添加 */
@media (max-width: 768px) {
  body {
    padding: 0 !important;
    padding-top: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin: 0 !important;
    margin-top: 0 !important;
    display: block !important;
  }
}

/* 标题字体系统 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: var(--font-bold);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: var(--font-semibold);
}

h4 {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: var(--font-semibold);
}

/* 按钮和表单字体 */
button, input, select, textarea {
  font-family: var(--font-sans);
  font-weight: var(--font-medium);
}

/* 代码字体 */
code, pre {
  font-family: var(--font-mono);
}

/* 段落优化 */
p {
  margin: 0 0 1em;
  line-height: 1.7;
}

/* 强调文字 */
strong, b {
  font-weight: var(--font-semibold);
}

/* 链接 */
a {
  text-decoration: none;
  color: inherit;
}


img {
  display: block;
  max-width: 100%;
  border-radius: 1.5rem;
  object-fit: cover;
}

.background-gradient {
  position: fixed;
  inset: 0;
  background: radial-gradient(
      circle at 15% 20%,
      rgba(255, 255, 255, 0.75),
      transparent 40%
    ),
    radial-gradient(
      circle at 90% 0%,
      rgba(255, 255, 255, 0.9),
      transparent 35%
    ),
    linear-gradient(120deg, var(--bg-start), var(--bg-end));
  z-index: -2;
}

.sidebar {
  width: 240px;
  min-height: calc(100vh - clamp(1.5rem, 4vw, 3rem) * 2);
  background: var(--glass);
  border-radius: 32px;
  padding: 2rem 1.5rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6),
    0 14px 45px rgba(64, 93, 138, 0.15);
  backdrop-filter: blur(30px);
  position: fixed;
  left: clamp(1.5rem, 4vw, 3rem);
  top: clamp(1.5rem, 4vw, 3rem);
  z-index: 100;
  opacity: 1;
  visibility: visible;
  transition: all 0.4s var(--transition-smooth);
  animation: slideInLeft 0.6s var(--transition-smooth);
}


.brand {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.brand-logo {
  width: 62px;
  height: 62px;
  border-radius: var(--radius-pill);
  position: relative;
  display: grid;
  place-items: center;
  backdrop-filter: none;
}

.brand-logo::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
      circle at 30% 20%,
      rgba(255, 255, 255, 0.95),
      rgba(255, 255, 255, 0)
    ),
    radial-gradient(circle at 70% 80%, rgba(24, 101, 220, 0.3), transparent 55%);
  filter: blur(2px);
  opacity: 0.8;
  transform: translate3d(0, 0, 0);
}

.brand-logo::after {
  content: "";
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background-image: url("logo.png");
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.95;
  filter: drop-shadow(0 12px 26px rgba(8, 37, 84, 0.35));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.brand-text p {
  margin: 0;
  font-weight: 600;
}

.nav-section {
  margin-top: 0;
  margin-bottom: 2.5rem;
}

.nav-label {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: rgba(100, 120, 150, 0.7);
  margin: 0 -0.5rem 0.4rem -0.5rem;
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  transition: color 0.25s ease, transform 0.25s ease, text-shadow 0.25s ease, background 0.25s ease;
  border-radius: 8px;
}

.nav-label:hover {
  color: #1a6aff;
  transform: translateX(4px);
  text-shadow: 0 2px 8px rgba(26, 106, 255, 0.2);
  background: rgba(26, 106, 255, 0.08);
}

.nav-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.nav-section a {
  display: block;
  text-decoration: none;
  color: rgba(100, 120, 150, 0.7);
  font-weight: 500;
  letter-spacing: 0.15em;
  padding: 0.3rem 0.5rem;
  margin-left: -0.5rem;
  margin-right: -0.5rem;
  transition: color 0.25s ease, transform 0.25s ease, text-shadow 0.25s ease, background 0.25s ease;
  border-radius: 8px;
}

.nav-section a:hover {
  color: #1a6aff;
  transform: translateX(4px);
  text-shadow: 0 2px 8px rgba(26, 106, 255, 0.2);
  background: rgba(26, 106, 255, 0.08);
}

.social-section {
  margin-top: auto;
  padding-top: 2rem;
}

.social-section > p {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: rgba(100, 120, 150, 0.7);
  margin-bottom: 0.75rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-links a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 11px;
  text-decoration: none;
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6),
    0 4px 12px rgba(64, 93, 138, 0.2);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.social-links a svg {
  width: 18px;
  height: 18px;
  transition: all 0.3s ease;
}

.social-links a:hover {
  transform: translateY(-3px) scale(1.08);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(255, 255, 255, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8),
    0 8px 20px rgba(59, 130, 246, 0.25);
}

.social-links a:hover svg {
  transform: scale(1.1);
  color: #3b82f6;
}

.social-links a:active {
  transform: translateY(-1px) scale(1.02);
}

.main {
  flex: 1;
  margin-left: 120px;
  backdrop-filter: blur(16px);
  position: relative;
  z-index: 1;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: margin-left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: 0;
  min-width: 0;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 36px;
  padding: 0.5rem clamp(2rem, 4vw, 3.5rem) clamp(2rem, 4vw, 3.5rem);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6),
    0 35px 85px rgba(81, 113, 160, 0.18);
  animation: fadeInUp 0.8s var(--transition-smooth);
}

/* Section 渐入动画 */
.main > section {
  animation: fadeInUp 0.6s var(--transition-smooth) backwards;
}

.main > section:nth-child(1) { animation-delay: 0.1s; }
.main > section:nth-child(2) { animation-delay: 0.2s; }
.main > section:nth-child(3) { animation-delay: 0.3s; }
.main > section:nth-child(4) { animation-delay: 0.4s; }
.main > section:nth-child(5) { animation-delay: 0.5s; }

.about-hero {
  position: relative;
  border-radius: 32px;
  padding: clamp(2.5rem, 5vw, 4.5rem);
  min-height: clamp(320px, 65vh, 520px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
  overflow: hidden;
  color: #fff;
  box-shadow: 0 45px 85px rgba(12, 35, 78, 0.35);
  background: linear-gradient(
    135deg,
    rgba(14, 32, 70, 0.85),
    rgba(8, 57, 141, 0.4)
  );
}

.about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(5, 13, 30, 0.1),
    rgba(2, 12, 42, 0.6)
  );
  mix-blend-mode: soft-light;
  display: none; /* 暂时隐藏遮罩 */
}

.about-hero > * {
  position: relative;
  z-index: 1;
}

.hero-gallery {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-gallery::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(7, 15, 32, 0.92) 0%,
    rgba(7, 15, 32, 0.55) 40%,
    rgba(7, 15, 32, 0.25) 100%
  );
  pointer-events: none;
}

/* 轮播图容器 - 必须覆盖整个 Hero 区域 */
.hero-slides {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  border-radius: inherit;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  /* 移除 transform 和动画，解决滚动跳动问题 */
  transform: none;
  transition: opacity 0.8s ease;
}

.hero-slide:nth-child(1) {
  opacity: 1 !important;
  z-index: 1;
}

.hero-slide:nth-child(2),
.hero-slide:nth-child(3),
.hero-slide:nth-child(4),
.hero-slide:nth-child(5) {
  opacity: 0 !important;
}

/* 移除轮播动画，稳定显示 */
/*
@keyframes heroSlide {
  0% {
    opacity: 0;
    transform: scale(1.06);
  }
  5%,
  25% {
    opacity: 1;
    transform: scale(1);
  }
  35%,
  100% {
    opacity: 0;
    transform: scale(1.08);
  }
}
*/

.hero-slide.active {
  opacity: 1 !important;
  transform: none !important;
  z-index: 2;
}

.hero-arrows {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
  z-index: 2;
  pointer-events: none;
}

.hero-arrow {
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
  width: auto !important;
  height: auto !important;
  cursor: pointer;
  pointer-events: auto;
  color: rgba(255, 255, 255, 0.95) !important;
  font-size: 3.5rem;
  font-weight: 300;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  outline: none !important;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-arrow span {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
}

.hero-arrow:focus {
  outline: none;
}

.hero-arrow:focus-visible {
  outline: none;
}

.hero-arrow:hover {
  color: #ffffff !important;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  transform: scale(1.1);
}

.hero-arrow:active {
  color: #ffffff !important;
  transform: scale(0.95);
}

/* 移动端优化箭头 */
@media (max-width: 768px) {
  .hero-arrows {
    padding: 0 0.5rem;
  }
  
  .hero-arrow {
    font-size: 3rem;
  }
}

/* 小手机屏幕 - 箭头更小 */
@media (max-width: 480px) {
  .hero-arrow {
    font-size: 2.5rem;
  }
}

/* 强制移除轮播箭头的任何圆形背景/伪元素 */
#heroPrev,
#heroNext {
  background: transparent !important;
  border-radius: 0 !important;
  border: none !important;
  box-shadow: none !important;
  color: rgba(255, 255, 255, 0.95) !important;
}

#heroPrev::before,
#heroPrev::after,
#heroNext::before,
#heroNext::after {
  content: none !important;
  background: transparent !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

#heroPrev:hover,
#heroNext:hover {
  color: #ffffff !important;
}

/* 强制左右箭头颜色完全一致 */
#heroPrev,
#heroPrev span,
#heroNext,
#heroNext span {
  color: rgba(255, 255, 255, 0.95) !important;
  opacity: 1 !important;
  filter: none !important;
}

#heroPrev:hover,
#heroPrev:hover span,
#heroNext:hover,
#heroNext:hover span {
  color: #ffffff !important;
  opacity: 1 !important;
}

/* 右箭头向上微调 */
#heroNext {
  transform: translateY(-5px);
}

#heroNext:hover {
  transform: translateY(-5px) scale(1.1);
}

#heroNext:active {
  transform: translateY(-5px) scale(0.95);
}

/* Search Box in Sidebar */
.hero-search-box {
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  padding: 0.6rem 1.4rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 8px 24px rgba(100, 120, 150, 0.15);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  width: 100%;
  margin-bottom: 1.5rem;
  position: relative;
  transition: background 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hero-search-box:hover {
  background: rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 1),
    0 12px 32px rgba(100, 120, 150, 0.2);
  transform: translateY(-1px);
}

.hero-search-input {
  width: 100%;
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.875rem;
  color: rgba(10, 74, 182, 0.9);
  font-family: var(--font-sans);
  font-weight: var(--font-medium);
  letter-spacing: 0.02em;
}

.hero-search-input::placeholder {
  color: rgba(100, 120, 150, 0.7);
}

.hero-search-input:focus {
  color: #0a4ab6;
}

.hero-search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

/* 搜索结果下拉 */
.hero-search-box {
  position: relative;
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  margin-top: 8px;
  max-height: 400px;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

.search-result-item {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  cursor: pointer;
  transition: background 0.2s;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background: rgba(59, 130, 246, 0.1);
}

.search-result-title {
  font-weight: 600;
  color: #1e40af;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.search-result-desc {
  color: #64748b;
  font-size: 0.85rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.search-no-results {
  padding: 20px;
  text-align: center;
  color: #64748b;
  font-size: 0.9rem;
}

/* 详情页面样式 */
.detail-page {
  padding: clamp(2rem, 4vw, 3rem);
  min-height: 100vh;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 12px;
  color: #3b82f6;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 2rem;
}

.back-btn:hover {
  background: #3b82f6;
  color: white;
  transform: translateX(-4px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.back-btn svg {
  width: 20px;
  height: 20px;
}

.detail-header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem 0;
}

.detail-header h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin: 1rem 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.detail-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: #64748b;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.detail-content {
  max-width: 1200px;
  margin: 0 auto;
}

.detail-article {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: clamp(2rem, 4vw, 3rem);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.detail-article h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--text);
  margin: 2.5rem 0 1.5rem;
  font-weight: 600;
}

.detail-article h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: var(--text);
  margin: 1.5rem 0 1rem;
  font-weight: 600;
}

.detail-article h4 {
  font-size: 1.1rem;
  color: var(--text);
  margin: 1rem 0 0.5rem;
  font-weight: 600;
}

.detail-article p {
  color: #475569;
  line-height: 1.8;
  margin: 1rem 0;
  font-size: 1.05rem;
}

.detail-article ul {
  margin: 1.5rem 0;
}

.detail-article li {
  color: #475569;
  line-height: 1.8;
  font-size: 1rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .detail-page {
    padding: 1.5rem;
  }
  
  .stats-grid,
  .service-grid,
  .business-grid {
    grid-template-columns: 1fr !important;
  }
  
  .detail-article {
    padding: 1.5rem;
  }
  
  .intro-text-block {
    padding: 1.5rem !important;
  }
  
  /* 企业概况区块移动端优化 */
  .company-intro-content h4 {
    font-size: 1.15rem !important;
  }
  
  .company-intro-content h5 {
    font-size: 1rem !important;
  }
}

.hero-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.hero-title h1 {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.24em;
  color: var(--muted);
  text-transform: uppercase;
}

.hero-tabs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.65rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(11, 42, 125, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 25px 45px rgba(5, 9, 18, 0.45);
  transition: all 0.3s var(--transition-smooth);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  min-width: fit-content;
  vertical-align: middle;
  transform: translateY(0);
}

.pill-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.pill-link:hover::before {
  left: 100%;
}

.pill-link.active {
  color: #fff;
  background: rgba(11, 42, 125, 0.55);
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 30px 50px rgba(5, 9, 18, 0.5);
  transform: translateY(0) !important;
}

.pill-link:hover:not(.active) {
  color: #fff;
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 35px 55px rgba(5, 9, 18, 0.55);
}

.pill-link:active {
  transform: translateY(0) scale(0.98);
}

.hero-pill-bar {
  width: clamp(230px, 40vw, 420px);
  min-height: 52px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 25px 60px rgba(2, 4, 12, 0.4);
  margin: 1rem 0 0;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  background-image: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0.3),
    rgba(255, 255, 255, 0.1)
  );
}

.hero-pill-bar:hover {
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55),
    0 35px 75px rgba(2, 4, 12, 0.55);
}

.hero-image-frame {
  display: none;
}

.hero-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 12;
}

.hero-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.hero-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 20, 0.8);
  backdrop-filter: blur(12px);
}

.hero-overlay__content {
  position: relative;
  width: min(640px, 92vw);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 32px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 55px 95px rgba(4, 12, 29, 0.45);
  color: #153468;
}

.overlay-body h2 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.overlay-video {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  margin: 1rem 0;
  box-shadow: 0 35px 65px rgba(4, 12, 29, 0.35);
}

.overlay-video::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(3, 8, 20, 0.15),
    rgba(3, 8, 20, 0.35)
  );
  pointer-events: none;
}

.overlay-video video {
  width: 100%;
  height: clamp(220px, 40vw, 360px);
  object-fit: cover;
  display: block;
}

.overlay-body p {
  color: #1c3560;
  line-height: 1.8;
}

.overlay-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: none;
  background: rgba(11, 42, 125, 0.08);
  color: #0b2a7b;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.overlay-close:hover {
  background: rgba(11, 42, 125, 0.15);
}

.hero-image-frame img {
  width: 100%;
  display: block;
  height: clamp(220px, 45vw, 360px);
  object-fit: cover;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.story-panel {
  background: rgba(255, 255, 255, 0.92);
  border-radius: 28px;
  padding: 1.75rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 22px 55px rgba(85, 120, 172, 0.18);
  transition: all 0.4s var(--transition-smooth);
}

.story-panel:hover {
  transform: translateY(-6px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 25px 60px rgba(85, 120, 172, 0.25);
}

/* 三个卡片背景统一 */
.story-panel.light {
  background: rgba(255, 255, 255, 0.92);
}

.story-panel h2,
.story-panel h3 {
  margin: 0;
}

/* 三个蓝色主标题统一字号和粗细 */
.about-grid .story-panel h2,
.about-grid .story-panel h3 {
  font-size: 1.3rem;
  font-weight: 600;
}

/* 灰色小标题到蓝色标题的距离一致 */
.about-grid .story-panel header .eyebrow {
  margin: 0 0 0.75rem;
}

/* 蓝色标题到正文/列表的距离一致 */
.about-grid .story-panel > p,
.about-grid .milestones {
  margin: 0.75rem 0 0;
}

/* 正文和年份行统一 */
.story-panel p {
  color: #2e4c7b;
  font-size: 0.95rem;
  line-height: 1.8;
}

.milestones {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  color: #2e4c7b;
  font-size: 0.95rem;
}

.milestones li {
  line-height: 1.8;
}

.milestones span {
  font-weight: 600;
  margin-right: 0.5rem;
  color: var(--text);
}

/* 企业概况内容区域 */
.company-intro-content {
  display: block;
  width: 100%;
}

/* 企业概况卡片 */
.company-overview-card {
  transition: all 0.3s var(--transition-smooth);
}

.company-overview-card:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 20px 40px rgba(76, 116, 171, 0.32) !important;
}

.vision-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.vision-card {
  border-radius: 26px;
  padding: 1.5rem;
  color: #fffdf5;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 25px 65px rgba(34, 28, 16, 0.35);
  transition: all 0.4s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.vision-card > * {
  position: relative;
  z-index: 2;
}

.vision-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.vision-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 30px 80px rgba(34, 28, 16, 0.45);
}

.vision-card:hover::after {
  opacity: 1;
}

.vision-card header {
  margin-bottom: 0.75rem;
}

.vision-card header .eyebrow {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 0.25rem;
}

.vision-card h3 {
  margin: 0.15rem 0 0.5rem;
  color: #ffffff;
  font-size: 1.5rem;
}

.vision-card p {
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.7;
  margin: 0;
}

.gradient-brown {
  position: relative;
  background: 
    linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow: hidden;
}

.gradient-brown::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
  pointer-events: none;
}

.gradient-brown::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.gradient-orange {
  position: relative;
  background: 
    linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  overflow: hidden;
}

.gradient-orange::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.08) 2px, transparent 2px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 2px, transparent 2px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
}

.gradient-orange::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.gradient-blue {
  position: relative;
  background: 
    linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  overflow: hidden;
}

.gradient-blue::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.08) 2px, transparent 2px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 2px, transparent 2px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.gradient-blue::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.gradient-purple {
  position: relative;
  background: 
    linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
  overflow: hidden;
}

.gradient-purple::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.08) 2px, transparent 2px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 2px, transparent 2px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.gradient-purple::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.gradient-green {
  position: relative;
  background: 
    linear-gradient(135deg, #10b981 0%, #059669 100%);
  overflow: hidden;
}

.gradient-green::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.08) 2px, transparent 2px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 2px, transparent 2px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.gradient-green::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.timeline-section {
  background: rgba(255, 255, 255, 0.55);
  border-radius: 30px;
  padding: clamp(1rem, 2vw, 1.5rem) clamp(1rem, 2vw, 1.5rem) clamp(0.75rem, 1.5vw, 1rem);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 25px 75px rgba(70, 110, 168, 0.2);
}

/* 合作伙伴板块 - 企业级展示 */
.partners-section {
  position: relative;
  overflow: hidden;
}

.partners-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 3rem);
}

.partners-bg {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.partners-bg-top {
  top: -150px;
  right: -150px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
}

.partners-bg-bottom {
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
}

.partners-stats {
  margin-bottom: clamp(2.5rem, 4vw, 3.5rem);
}

.stats-container {
  display: flex;
  justify-content: center;
  gap: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04),
    0 1px 0 rgba(255, 255, 255, 0.9) inset;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 2.25rem 2rem;
  background: rgba(255, 255, 255, 0.65);
  min-width: 160px;
}

.stat-item + .stat-item {
  border-left: 1px solid rgba(15, 23, 42, 0.04);
}

.stat-number {
  display: inline-flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0.15em;
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 800;
  color: #1f2937;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat-number .stat-suffix {
  font-size: 1.5rem;
  color: #3b82f6;
  font-weight: 700;
}

.stat-label {
  font-size: 0.85rem;
  color: #64748b;
  margin-top: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.partners-header {
  text-align: center;
  margin-bottom: 0.75rem;
}

.partners-header h2 {
  margin-bottom: 0.25rem;
}

.partners-grid {
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 40%, #e5f4ff 100%);
  border-radius: 24px;
  padding: clamp(1.5rem, 3vw, 2rem);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 1rem;
  background: white;
  border-radius: 14px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
  transition: transform 0.25s var(--transition-smooth),
    box-shadow 0.25s var(--transition-smooth),
    background 0.25s var(--transition-smooth);
  min-height: 70px;
}

.partner-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.12);
  background: linear-gradient(135deg, #ffffff, #f3f4ff);
}

.partner-logo {
  max-width: 110px;
  max-height: 40px;
  object-fit: contain;
  filter: saturate(1.05) contrast(1.05);
}

.partner-name {
  font-size: 0.86rem;
  font-weight: 600;
  color: #374151;
  text-align: center;
}

@media (max-width: 1024px) {
  .partners-inner {
    gap: 2rem;
  }

  .stat-item {
    padding: 1.75rem 1.25rem;
  }
}

@media (max-width: 768px) {
  .stats-container {
    flex-direction: column;
  }

  .stat-item + .stat-item {
    border-left: none;
    border-top: 1px solid rgba(15, 23, 42, 0.04);
  }

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

@media (max-width: 640px) {
  .partners-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 1.25rem 1rem;
  }

  .partner-item {
    padding: 0.85rem 0.75rem;
  }
}

.timeline-section header h2 {
  margin: 0.25rem 0 0.75rem;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.timeline-grid article {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 20px;
  padding: 1.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 18px 35px rgba(76, 116, 171, 0.22);
  color: #2e4c7b;
  transition: all 0.3s var(--transition-smooth);
}

.timeline-grid article:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 20px 40px rgba(76, 116, 171, 0.28);
}

/* 可点击的时间线卡片 */
.timeline-card-clickable {
  cursor: pointer;
  transition: all 0.3s ease;
}

.timeline-card-clickable:hover {
  transform: translateY(-8px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 12px 24px rgba(0, 0, 0, 0.15) !important;
}

.timeline-card-clickable:active {
  transform: translateY(-4px);
}

.sidebar-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  border: none;
  background: var(--glass-strong);
  box-shadow: 0 20px 45px rgba(66, 110, 168, 0.3);
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.sidebar-toggle span {
  width: 26px;
  height: 3px;
  background: var(--text);
  border-radius: 999px;
  display: block;
}

body.nav-open .sidebar {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

/* 平板和中等屏幕 */
@media (max-width: 1280px) {
  .main {
    margin-left: 120px;
    min-width: 0;
  }
  
  .sidebar {
    width: 220px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .vision-row {
    grid-template-columns: 1fr;
  }
}

/* 移动端和小屏幕 */
@media (max-width: 1024px) {
  body {
    flex-direction: column;
    padding: 1rem 1rem 0;
  }
  
  .site-footer {
    margin-left: -1rem;
    margin-right: -1rem;
  }

  .main {
    margin-left: 0;
    padding: clamp(1.5rem, 3vw, 2rem);
  }
  
  .sidebar {
    width: min(280px, 75vw);
    position: fixed;
    left: 1rem;
    top: 1rem;
    bottom: 1rem;
    transform: translateX(-120%);
    opacity: 0;
    pointer-events: none;
    z-index: 9;
    transition: transform 0.4s ease, opacity 0.4s ease;
  }

  .sidebar-toggle {
    display: inline-flex;
    z-index: 11;
  }

  body.nav-open .sidebar {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  body.nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(15, 35, 69, 0.3);
    /* 移除模糊效果，避免整个页面变模糊 */
    /* backdrop-filter: blur(3px); */
    z-index: 8;
  }

  .hero-tabs {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-pill-bar {
    width: 100%;
  }
  
  .about-hero {
    padding: clamp(2rem, 4vw, 3rem);
    min-height: clamp(280px, 50vh, 400px);
  }
  
  .hero-title h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .vision-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .timeline-grid {
    grid-template-columns: 1fr;
  }

  @keyframes smoothMove {
    0% {
      transform: translate3d(0, 0, 0) scale(1);
      opacity: 1;
    }
    100% {
      transform: translate3d(
        calc(-50vw + 1rem + 70px),
        calc(-50vh + 1rem + 20px),
        0
      ) scale(0.35);
      opacity: 0;
    }
  }
}

/* 小手机屏幕 */
@media (max-width: 640px) {
  body {
    padding: 0.5rem 0.5rem 0;
    font-size: 14px;
    min-height: 100vh;
    overflow-x: hidden;
  }
  
  .site-footer {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }
  
  .sidebar {
    width: 200px;
    padding: 1.5rem 1rem;
    border-radius: 20px;
  }
  
  .main {
    padding: 1rem;
    border-radius: 20px;
    width: 100%;
    overflow-x: hidden;
  }
  
  .about-hero {
    padding: 1.5rem;
    border-radius: 16px;
  }
  
  .hero-title h1 {
    font-size: clamp(1.5rem, 8vw, 2rem);
    letter-spacing: 0.05em;
  }
  
  .story-panel {
    padding: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .vision-card {
    min-height: 160px;
    padding: 1rem;
    margin-bottom: 1rem;
  }
  
  .hero-tabs {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .pill-link {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .vision-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .timeline-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* 搜索下拉列表 */
.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12),
              0 2px 8px rgba(0, 0, 0, 0.08);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.search-dropdown.active {
  max-height: 480px;
  opacity: 1;
  transform: translateY(0);
  overflow-y: auto;
}

.search-dropdown::-webkit-scrollbar {
  width: 6px;
}

.search-dropdown::-webkit-scrollbar-track {
  background: transparent;
}

.search-dropdown::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.search-dropdown::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

/* 空状态 */
.search-dropdown-empty {
  padding: 2rem;
  text-align: center;
  color: #94a3b8;
}

.search-empty-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.search-dropdown-empty p {
  margin: 0;
  font-size: 0.9rem;
}

/* 搜索结果项 */
.search-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.search-dropdown-item:last-child {
  border-bottom: none;
}

.search-dropdown-item:hover,
.search-dropdown-item.focused {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.08), rgba(96, 165, 250, 0.05));
}

.search-dropdown-item:active {
  background: rgba(59, 130, 246, 0.12);
}

.search-item-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.search-item-content {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.search-item-title {
  font-size: 0.9rem;
  line-height: 1.4;
  color: #1e293b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-item-title.is-title {
  font-weight: 600;
  color: #0f172a;
}

.search-item-title mark {
  background: rgba(255, 235, 59, 0.4);
  color: inherit;
  padding: 0.1em 0.2em;
  border-radius: 2px;
  font-weight: 600;
}

.search-item-breadcrumb {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-item-arrow {
  font-size: 1rem;
  color: #cbd5e1;
  flex-shrink: 0;
  transition: all 0.15s ease;
}

.search-dropdown-item:hover .search-item-arrow,
.search-dropdown-item.focused .search-item-arrow {
  color: #3b82f6;
  transform: translateX(2px);
}

/* 目标高亮效果 */
.search-target-highlight {
  animation: targetPulse 2s ease;
  position: relative;
}

@keyframes targetPulse {
  0%, 100% {
    background-color: transparent;
  }
  10%, 30%, 50% {
    background-color: rgba(255, 235, 59, 0.3);
  }
  20%, 40% {
    background-color: rgba(255, 235, 59, 0.5);
  }
}

/* 移动端适配 */
@media (max-width: 768px) {
  .search-dropdown {
    border-radius: 8px;
    left: -1rem;
    right: -1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  }
  
  .search-dropdown.active {
    max-height: 60vh;
  }
  
  .search-dropdown-item {
    padding: 0.875rem 0.75rem;
  }
  
  .search-item-title {
    font-size: 0.85rem;
  }
}

/* 侧边栏自动收起状态 */
body.sidebar-auto-collapsed .sidebar {
  transform: translate3d(calc(-100% - clamp(1.5rem, 4vw, 3rem)), 0, 0);
  opacity: 0;
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 8px 20px rgba(64, 93, 138, 0.08);
}

/* 侧边栏添加过渡效果 */
.sidebar {
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform, opacity;
  transform: translate3d(0, 0, 0);
}

/* 主内容区域调整 */
body.sidebar-auto-collapsed .main {
  margin-left: 0 !important;
  width: 100%;
  max-width: 100%;
}

.main {
  transition: margin-left 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 侧边栏展开按钮 */
.sidebar-expand-btn {
  position: fixed;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%) translateX(-100px);
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  border: none;
  border-radius: 0 12px 12px 0;
  padding: 1rem 0.75rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3),
              0 2px 8px rgba(59, 130, 246, 0.2);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-expand-btn.visible {
  transform: translateY(-50%) translateX(0);
  opacity: 1;
  pointer-events: all;
}

.sidebar-expand-btn:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4),
              0 3px 10px rgba(59, 130, 246, 0.3);
  padding-right: 0.9rem;
}

.sidebar-expand-btn .expand-icon {
  font-size: 1.25rem;
  color: white;
  line-height: 1;
}

.sidebar-expand-btn .expand-text {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  letter-spacing: 0.05em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .sidebar-expand-btn {
    top: auto;
    bottom: 1rem;
    border-radius: 12px 12px 0 0;
    flex-direction: row;
    padding: 0.75rem 1rem;
    left: 50%;
    transform: translate(-50%, 100px);
  }
  
  .sidebar-expand-btn.visible {
    transform: translate(-50%, 0);
  }
  
  .sidebar-expand-btn .expand-text {
    writing-mode: horizontal-tb;
    font-size: 0.8rem;
  }
  
  .sidebar-expand-btn:hover {
    padding: 0.75rem 1rem;
  }
}

/* 联系方式区块 */
.contact-section {
  background: rgba(255, 255, 255, 0.55);
  border-radius: 30px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 25px 75px rgba(70, 110, 168, 0.2);
}

.contact-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.contact-header h2 {
  margin: 0.25rem 0 1rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
}

.contact-subtitle {
  color: #2e4c7b;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 24px;
  padding: 1.5rem 1.5rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 18px 35px rgba(76, 116, 171, 0.15);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-align: center;
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 1),
    0 25px 50px rgba(76, 116, 171, 0.25);
}

.contact-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  border-radius: 16px;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
  transition: all 0.3s ease;
}

.contact-card:hover .contact-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 28px rgba(59, 130, 246, 0.4);
}

.contact-icon svg {
  width: 26px;
  height: 26px;
  color: white;
}

.contact-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}

.contact-detail {
  font-size: 1.05rem;
  font-weight: 600;
  color: #1e40af;
  margin: 0.5rem 0;
}

.contact-desc {
  color: #64748b;
  font-size: 0.875rem;
  margin: 0.4rem 0 0;
  line-height: 1.5;
}

.contact-card-cta {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(255, 255, 255, 0.95));
  border: 2px solid rgba(59, 130, 246, 0.2);
}

.contact-btn {
  margin-top: 1.2rem;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  border: none;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.contact-btn:active {
  transform: translateY(0) scale(1);
}

/* 页脚 */
.site-footer {
  color: rgba(255, 255, 255, 0.9);
  width: 100vw;
  margin-top: 4rem;
  margin-left: calc(-1 * clamp(1.5rem, 4vw, 3rem));
  margin-right: 0;
  margin-bottom: 0;
  position: relative;
  flex: 1 1 100%;
  order: 999;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
  z-index: -1;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem) 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 450px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand-logo-footer {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.footer-logo h3 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text);
}

.footer-tagline {
  color: rgba(10, 74, 182, 0.8);
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 1rem;
}

.footer-desc {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

.footer-col h4 {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: rgba(10, 74, 182, 0.7);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  display: inline-block;
}

.footer-links a:hover {
  color: #2563eb;
  transform: translateX(5px);
}

.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(10, 74, 182, 0.7);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: #3b82f6;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(10, 74, 182, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  margin: 0;
  color: rgba(10, 74, 182, 0.5);
  font-size: 0.85rem;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-legal a {
  color: rgba(10, 74, 182, 0.5);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.3s ease;
}

.footer-legal a:hover {
  color: #2563eb;
}

.footer-divider {
  color: rgba(10, 74, 182, 0.3);
}

/* 移动端适配 */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-section {
    padding: 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-content {
    padding: 2.5rem 1.5rem 1.5rem;
  }
  
  .footer-links a,
  .footer-contact li {
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 1rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  
  .footer-legal {
    flex-wrap: wrap;
  }
}

/* ==================== 联系表单模态框 ==================== */
.contact-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.contact-modal.active {
  display: flex;
  opacity: 1;
}

.contact-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
}

.contact-modal-content {
  position: relative;
  background: white;
  border-radius: 16px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  padding: 2.5rem;
}

.contact-modal.active .contact-modal-content {
  transform: scale(1) translateY(0);
}

.contact-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(0, 0, 0, 0.05);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  color: #666;
}

.contact-modal-close:hover {
  background: rgba(0, 0, 0, 0.1);
  transform: rotate(90deg);
  color: #000;
}

.contact-modal-header {
  margin-bottom: 2rem;
}

.contact-modal-header h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  color: #1a1a1a;
}

.contact-modal-subtitle {
  font-size: 0.95rem;
  color: #666;
  margin: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
}

.form-group .required {
  color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.2s ease;
  background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #9ca3af;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.btn-primary,
.btn-secondary {
  flex: 1;
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  box-shadow: 0 6px 12px -2px rgba(59, 130, 246, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: #f3f4f6;
  color: #374151;
}

.btn-secondary:hover {
  background: #e5e7eb;
}

.spinner {
  width: 16px;
  height: 16px;
  animation: spin 1s linear infinite;
}

.spinner circle {
  stroke-dasharray: 90, 150;
  stroke-dashoffset: 0;
  stroke-linecap: round;
  animation: dash 1.5s ease-in-out infinite;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

@keyframes dash {
  0% {
    stroke-dasharray: 1, 150;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -35;
  }
  100% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -124;
  }
}

/* 成功消息 */
.contact-success-message {
  text-align: center;
  padding: 2rem 0;
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: successPulse 0.6s ease;
}

.success-icon svg {
  width: 52px;
  height: 52px;
}

.success-icon circle {
  stroke: white;
  stroke-width: 2;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: checkCircle 0.6s ease forwards;
}

.success-icon path {
  stroke: white;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: checkMark 0.3s 0.6s ease forwards;
}

@keyframes successPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes checkCircle {
  to { stroke-dashoffset: 0; }
}

@keyframes checkMark {
  to { stroke-dashoffset: 0; }
}

.contact-success-message h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0 0 0.5rem 0;
}

.contact-success-message p {
  color: #666;
  margin: 0 0 2rem 0;
  line-height: 1.6;
}

/* 移动端响应式 */
@media (max-width: 768px) {
  .contact-modal-content {
    padding: 2rem 1.5rem;
    max-width: 95%;
    max-height: 90vh;
    overflow-y: auto;
  }

  .contact-modal-header h2 {
    font-size: 1.5rem;
  }

  .contact-form-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-form-group label {
    font-size: 0.95rem;
  }
  
  .contact-form-input,
  .contact-form-textarea,
  .contact-form-select {
    font-size: 16px; /* 防止iOS自动缩放 */
    padding: 14px 16px;
    min-height: 48px;
  }
  
  .contact-form-textarea {
    min-height: 120px;
  }

  .contact-form-actions {
    flex-direction: column-reverse;
    gap: 1rem;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    min-height: 48px;
    font-size: 1rem;
  }
  
  .contact-form-error {
    font-size: 0.85rem;
  }
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.5);
}

.back-to-top:active {
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

/* 移动端优化 */
@media (max-width: 768px) {
  /* ===== 强制移除body的所有padding和margin ===== */
  html {
    margin: 0 !important;
    padding: 0 !important;
  }
  
  body {
    padding: 0 !important;
    padding-top: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin: 0 !important;
    margin-top: 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    display: block !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  
  /* 移动端侧边栏默认隐藏，但保留显示能力 */
  .sidebar {
    display: block !important;
    transform: translateX(-100%) !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
  
  /* 移动端完全隐藏侧边栏展开按钮 */
  .sidebar-expand-btn {
    display: none !important;
  }
  
  /* 移动端主内容区域占满全屏 */
  .main {
    margin-left: 0 !important;
    margin-top: 0 !important;
    margin-right: 0 !important;
    padding: 0 !important;
    padding-top: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  
  /* 确保hero-section也从顶部开始 */
  .hero-section {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  /* 额外保险：主内容和首屏完全贴顶 */
  .main {
    padding-top: 0 !important;
    margin-top: 0 !important;
  }

  .main > section:first-of-type,
  .hero-section,
  .hero-slides,
  .hero-slide {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .hero-section {
    top: 0 !important;
    overflow: hidden !important;
  }
  
  .back-to-top {
    width: 44px;
    height: 44px;
    bottom: 1.5rem;
    right: 1.5rem;
  }
  
  .back-to-top svg {
    width: 20px;
    height: 20px;
  }
  
  /* 确保所有交互元素触摸目标至少44x44px */
  .nav-link,
  .sidebar-toggle,
  .search-btn,
  .social-links a {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-link {
    padding: 12px 16px;
  }
  
  .contact-card {
    padding: 2rem 1.5rem;
  }
  
  .contact-btn {
    min-height: 48px;
    padding: 14px 28px;
    font-size: 1rem;
  }
}

/* 加载状态提示器 */
.loading-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-indicator.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: white;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(59, 130, 246, 0.2);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 滚动渐入动画 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* 确保企业愿景卡片始终可见，不受滚动动画 opacity 影响 */
.vision-card.scroll-reveal,
.vision-card.scroll-reveal-left,
.vision-card.scroll-reveal-right,
.vision-card.scroll-reveal-scale {
  opacity: 1;
  transform: none;
}

/* 确保联系卡片始终可见，不受滚动动画影响 - 覆盖所有可能的组合 */
.contact-card,
.contact-card.scroll-reveal-left,
.contact-card.scroll-reveal-right,
.contact-card.scroll-reveal,
.contact-card.scroll-reveal-scale,
#contact .contact-card,
.contact-section .contact-card,
.contact-grid .contact-card {
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
  transition: none !important;
  display: block !important;
}

.contact-card.scroll-reveal-left.revealed,
.contact-card.scroll-reveal-right.revealed,
.contact-card.scroll-reveal.revealed,
.contact-card.scroll-reveal-scale.revealed {
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
}

/* === 联系我们区块兜底样式，确保始终可见 === */
#contact {
  position: relative;
  z-index: 1;
}

#contact .contact-grid {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
  gap: 1.5rem !important;
  align-items: stretch;
}

@media (max-width: 768px) {
  #contact .contact-grid {
    grid-template-columns: 1fr !important;
  }
}

#contact .contact-card {
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
  display: block !important;
}

/* ========================================
   高级方案：深色渐变 + 精致细节
   可撤回：删除本段即可恢复原样式
   ======================================== */

/* 深色渐变背景 - 更有质感 */
.vision-card.gradient-blue {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%) !important;
}

.vision-card.gradient-purple {
  background: linear-gradient(135deg, #581c87 0%, #7c3aed 50%, #9333ea 100%) !important;
}

.vision-card.gradient-green {
  background: linear-gradient(135deg, #065f46 0%, #059669 50%, #10b981 100%) !important;
}

.vision-card.gradient-orange {
  background: linear-gradient(135deg, #c2410c 0%, #ea580c 50%, #f97316 100%) !important;
}

/* 精致的边框 */
.vision-card {
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: 24px !important;
  padding: 2rem !important;
  
  /* 多层阴影增加深度 */
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.08),
    0 4px 12px rgba(0, 0, 0, 0.12),
    0 16px 48px rgba(0, 0, 0, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
  
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.vision-card:hover {
  transform: translateY(-6px) !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.1),
    0 8px 24px rgba(0, 0, 0, 0.15),
    0 24px 64px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
}

/* 移除原有的背景纹理 - 保持简洁 */
.vision-card.gradient-blue::before,
.vision-card.gradient-purple::before,
.vision-card.gradient-green::before,
.vision-card.gradient-orange::before {
  display: none !important;
}

/* 添加微妙的光效 */
.vision-card::after {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  height: 50% !important;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, transparent 100%) !important;
  border-radius: 24px 24px 0 0 !important;
  pointer-events: none !important;
  z-index: 1 !important;
  opacity: 0 !important;
  transition: opacity 0.35s ease !important;
}

.vision-card:hover::after {
  opacity: 1 !important;
}

/* eyebrow标签 - 更精致 */
.vision-card header .eyebrow {
  background: rgba(255, 255, 255, 0.15) !important;
  padding: 0.35rem 0.85rem !important;
  border-radius: 8px !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.12em !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  display: inline-block !important;
  backdrop-filter: blur(4px) !important;
}

/* 标题 - 更现代 */
.vision-card h3 {
  font-size: 1.65rem !important;
  font-weight: 700 !important;
  margin: 0.85rem 0 1rem !important;
  color: #ffffff !important;
  letter-spacing: -0.02em !important;
}

/* 正文 - 更舒适 */
.vision-card p {
  font-size: 0.95rem !important;
  line-height: 1.75 !important;
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 400 !important;
}

/* 企业概况卡片 - 简洁白色 */
.company-overview-card {
  background: #ffffff !important;
  border: 1px solid rgba(0, 0, 0, 0.06) !important;
  border-radius: 24px !important;
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.04),
    0 4px 12px rgba(0, 0, 0, 0.06),
    0 16px 48px rgba(0, 0, 0, 0.08) !important;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.company-overview-card:hover {
  transform: translateY(-4px) !important;
  border-color: rgba(0, 0, 0, 0.08) !important;
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.06),
    0 8px 24px rgba(0, 0, 0, 0.08),
    0 24px 64px rgba(0, 0, 0, 0.12) !important;
}

/* ======== 高级方案结束 ======== */

/* ========================================
   全局字体优化 - 确保世界级水准
   ======================================== */

/* 导航和菜单 */
.nav-link,
.menu-item,
.pill-link {
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  letter-spacing: -0.01em;
}

/* 卡片标题 */
.card h3,
.vision-card h3,
.story-panel h3,
.timeline-item h3,
.service-card h3 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
}

/* eyebrow标签 */
.eyebrow {
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

/* 详情页标题 */
.detail-header h1 {
  font-family: var(--font-display);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
}

.detail-subtitle {
  font-family: var(--font-sans);
  font-weight: var(--font-normal);
  letter-spacing: -0.005em;
}

/* 按钮文字 */
.btn,
.contact-btn,
.hero-pill-bar,
button {
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  letter-spacing: -0.005em;
}

/* 数字强调 */
.stat-number,
.milestone span,
.count {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  font-variant-numeric: tabular-nums;
}

/* 表单元素 */
input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  font-family: var(--font-sans);
  font-weight: var(--font-normal);
  letter-spacing: -0.005em;
}

/* 表单标签 */
label {
  font-family: var(--font-sans);
  font-weight: var(--font-medium);
  letter-spacing: -0.005em;
}

/* 引用 */
blockquote {
  font-family: var(--font-display);
  font-weight: var(--font-medium);
  font-style: italic;
  letter-spacing: -0.01em;
}

/* 列表 */
li {
  line-height: 1.7;
}

/* 确保所有文字都有抗锯齿 */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ======== 字体优化结束 ======== */

/* ========================================
   移动端和平板端激进优化方案
   ======================================== */

/* 平板端优化 (768px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
  /* 首页轮播图优化 */
  .hero-section {
    height: 60vh;
    min-height: 400px;
  }
  
  .hero-title {
    font-size: 2.5rem !important;
    line-height: 1.2 !important;
  }
  
  .hero-subtitle {
    font-size: 1rem !important;
  }
  
  /* 卡片优化 - 2列布局 */
  .story-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem !important;
  }
  
  .vision-row {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem !important;
  }
  
  /* 团队卡片2列 */
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem !important;
  }
  
  /* 联系卡片2列 */
  .contact-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  
  /* 按钮更大更易点击 */
  .pill-link {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.9rem !important;
  }
  
  /* 详情页优化 */
  .detail-header h1 {
    font-size: 2.25rem !important;
  }
  
  .detail-article h2 {
    font-size: 1.75rem !important;
  }
}

/* ========================================
   手机端完全重新设计 (≤768px)
   ======================================== */
@media (max-width: 768px) {
  
  /* ===== 全局重置 ===== */
  * {
    box-sizing: border-box;
  }
  
  html {
    overflow-x: hidden !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  body {
    font-size: 16px !important;
    padding: 0 !important;
    padding-top: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin: 0 !important;
    margin-top: 0 !important;
    gap: 0 !important;
    background: #f5f7fa !important;
    overflow-x: hidden !important;
    display: block !important;
  }
  
  /* ===== Hero区域 - 重新设计 ===== */
  .hero-section {
    height: 65vh !important;
    min-height: 500px !important;
    max-height: 700px !important;
    border-radius: 0 !important;
    margin: 0 !important;
    margin-top: 0 !important;
    padding: 0 !important;
    padding-top: 0 !important;
    width: 100vw !important;
    position: relative !important;
    top: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
  
  /* Hero渐变遮罩增强 */
  .hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.3) 0%,
      rgba(0, 0, 0, 0.1) 40%,
      rgba(0, 0, 0, 0.4) 100%
    );
    z-index: 1;
    pointer-events: none;
  }
  
  .hero-content {
    position: relative !important;
    z-index: 2 !important;
    padding: 2.5rem 1.5rem !important;
    text-align: center !important;
    max-width: 100% !important;
  }
  
  .hero-title {
    font-size: 2.25rem !important;
    line-height: 1.25 !important;
    margin-bottom: 1.25rem !important;
    font-weight: 800 !important;
    color: #fff !important;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3) !important;
  }
  
  .hero-subtitle {
    font-size: 1.05rem !important;
    line-height: 1.65 !important;
    margin-bottom: 0 !important;
    color: rgba(255, 255, 255, 0.95) !important;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.2) !important;
    font-weight: 400 !important;
  }
  
  /* 隐藏不需要的元素 */
  .hero-tabs,
  .hero-search-box,
  .hero-pill-bar {
    display: none !important;
  }
  
  /* Hero轮播指示器优化 */
  .hero-indicators {
    bottom: 2rem !important;
    z-index: 3 !important;
  }
  
  .hero-indicator {
    width: 8px !important;
    height: 8px !important;
    margin: 0 4px !important;
    background: rgba(255, 255, 255, 0.5) !important;
    border: none !important;
  }
  
  .hero-indicator.active {
    background: #fff !important;
    width: 24px !important;
    border-radius: 4px !important;
  }
  
  /* ===== 主内容区域重新设计 ===== */
  .main {
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    background: #f5f7fa !important;
    box-shadow: none !important;
  }
  
  /* Section容器重新设计 */
  section {
    margin: 0 !important;
    padding: 2.5rem 1.25rem !important;
    border-radius: 0 !important;
    background: #fff !important;
    margin-bottom: 0.75rem !important;
  }
  
  /* Section标题优化 */
  section h2 {
    font-size: 1.65rem !important;
    margin-bottom: 0.75rem !important;
    color: #1a202c !important;
    font-weight: 700 !important;
  }
  
  .eyebrow {
    font-size: 0.75rem !important;
    letter-spacing: 0.1em !important;
    text-transform: uppercase !important;
    color: #667eea !important;
    font-weight: 700 !important;
    margin-bottom: 0.5rem !important;
  }
  
  /* ===== 卡片网格重新设计 ===== */
  .story-grid,
  .vision-row,
  .timeline-grid,
  .contact-grid,
  .service-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 1.25rem !important;
  }
  
  /* ===== 所有卡片统一设计 ===== */
  .story-panel,
  .vision-card,
  .timeline-item,
  .contact-card,
  .service-card,
  .company-overview-card {
    padding: 1.75rem !important;
    border-radius: 20px !important;
    background: #fff !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05) !important;
    transition: all 0.3s ease !important;
  }
  
  /* 卡片悬停效果 */
  .story-panel:active,
  .vision-card:active,
  .timeline-item:active,
  .contact-card:active,
  .service-card:active {
    transform: scale(0.98) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
  }
  
  /* 卡片标题 */
  .vision-card h3,
  .story-panel h3,
  .timeline-item h3,
  .contact-card h3,
  .service-card h3 {
    font-size: 1.35rem !important;
    margin-bottom: 0.75rem !important;
    color: #1a202c !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
  }
  
  /* 卡片文本 */
  .vision-card p,
  .story-panel p,
  .timeline-item p,
  .contact-card p,
  .service-card p {
    font-size: 0.95rem !important;
    line-height: 1.7 !important;
    color: #4a5568 !important;
    margin: 0 !important;
  }
  
  /* 特殊卡片：愿景卡片渐变背景保留但调整 */
  .vision-card {
    color: #fff !important;
    border: none !important;
  }
  
  .vision-card h3,
  .vision-card p {
    color: #fff !important;
  }
  
  /* ===== 公司介绍优化 ===== */
  .company-intro-content {
    padding: 0 1rem !important;
  }
  
  .company-overview-card {
    padding: 1.25rem !important;
    margin-bottom: 1rem !important;
  }
  
  .company-overview-card h3 {
    font-size: 1.2rem !important;
  }
  
  .company-overview-card p {
    font-size: 0.9rem !important;
    line-height: 1.65 !important;
  }
  
  /* ===== 详情页完全重新设计 ===== */
  .detail-page {
    padding: 0 !important;
    background: #f5f7fa !important;
  }
  
  .detail-header {
    padding: 2.5rem 1.5rem 2rem !important;
    background: #fff !important;
    margin-bottom: 0.75rem !important;
  }
  
  .detail-header h1 {
    font-size: 2rem !important;
    line-height: 1.3 !important;
    color: #1a202c !important;
    font-weight: 800 !important;
    margin-bottom: 0.75rem !important;
  }
  
  .detail-subtitle {
    font-size: 1rem !important;
    color: #4a5568 !important;
    line-height: 1.6 !important;
  }
  
  .detail-content {
    padding: 0 !important;
  }
  
  .detail-article {
    padding: 2.5rem 1.5rem !important;
    background: #fff !important;
    margin-bottom: 0.75rem !important;
  }
  
  .detail-article h2 {
    font-size: 1.65rem !important;
    margin: 2.5rem 0 1rem !important;
    color: #1a202c !important;
    font-weight: 700 !important;
  }
  
  .detail-article h2:first-child {
    margin-top: 0 !important;
  }
  
  .detail-article h3 {
    font-size: 1.35rem !important;
    margin: 1.75rem 0 0.75rem !important;
    color: #2d3748 !important;
    font-weight: 600 !important;
  }
  
  .detail-article p {
    font-size: 1rem !important;
    line-height: 1.8 !important;
    color: #4a5568 !important;
    margin-bottom: 1.25rem !important;
  }
  
  .detail-article ul,
  .detail-article ol {
    padding-left: 1.5rem !important;
    margin-bottom: 1.25rem !important;
  }
  
  .detail-article li {
    font-size: 1rem !important;
    line-height: 1.8 !important;
    color: #4a5568 !important;
    margin-bottom: 0.5rem !important;
  }
  
  /* 产品功能卡片 - 单列 */
  .detail-article > div[style*="grid-template-columns: repeat(3"],
  .detail-article > div[style*="grid-template-columns: repeat(2"] {
    display: flex !important;
    flex-direction: column !important;
    gap: 1.25rem !important;
  }
  
  .detail-article > div > div {
    padding: 1.75rem !important;
    border-radius: 20px !important;
    background: #f7fafc !important;
    border: 1px solid #e2e8f0 !important;
  }
  
  /* ===== 返回按钮重新设计 ===== */
  .back-btn {
    padding: 0.85rem 1.25rem !important;
    font-size: 0.95rem !important;
    border-radius: 999px !important;
    background: #667eea !important;
    color: #fff !important;
    border: none !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3) !important;
  }
  
  .back-btn:active {
    transform: scale(0.95) !important;
  }
  
  /* ===== 联系表单重新设计 ===== */
  .contact-modal-content {
    width: 95vw !important;
    max-width: 95vw !important;
    padding: 2rem 1.5rem !important;
    border-radius: 24px !important;
    background: #fff !important;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3) !important;
  }
  
  .modal-header h2 {
    font-size: 1.75rem !important;
    color: #1a202c !important;
    font-weight: 700 !important;
    margin-bottom: 0.5rem !important;
  }
  
  .form-row {
    grid-template-columns: 1fr !important;
    gap: 1.25rem !important;
  }
  
  .form-group label {
    font-size: 0.95rem !important;
    color: #2d3748 !important;
    font-weight: 600 !important;
    margin-bottom: 0.5rem !important;
  }
  
  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 1rem !important;
    padding: 0.95rem !important;
    border-radius: 12px !important;
    border: 2px solid #e2e8f0 !important;
    background: #f7fafc !important;
    transition: all 0.2s ease !important;
  }
  
  .form-group input:focus,
  .form-group textarea:focus,
  .form-group select:focus {
    border-color: #667eea !important;
    background: #fff !important;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
  }
  
  .submit-btn {
    padding: 1rem !important;
    font-size: 1.05rem !important;
    border-radius: 12px !important;
    background: #667eea !important;
    color: #fff !important;
    font-weight: 600 !important;
    border: none !important;
    width: 100% !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3) !important;
  }
  
  /* ===== 底部页脚重新设计 ===== */
  footer {
    background: #1a202c !important;
    padding: 3rem 1.5rem 2rem !important;
  }
  
  .footer-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 2.5rem !important;
  }
  
  .footer-col h4 {
    font-size: 1.1rem !important;
    margin-bottom: 1.25rem !important;
    color: #fff !important;
    font-weight: 700 !important;
  }
  
  .footer-links li,
  .footer-contact li {
    font-size: 0.95rem !important;
    line-height: 2.2 !important;
    color: rgba(255, 255, 255, 0.8) !important;
  }
  
  .footer-bottom {
    margin-top: 2.5rem !important;
    padding-top: 2rem !important;
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
    text-align: center !important;
  }
  
  /* ===== 图片优化 ===== */
  .detail-hero-img,
  img {
    width: 100% !important;
    height: auto !important;
    max-height: 300px !important;
    object-fit: cover !important;
    border-radius: 16px !important;
    margin-bottom: 1.5rem !important;
  }
  
  /* ===== CTA按钮重新设计 ===== */
  .cta-box {
    padding: 2.5rem 1.75rem !important;
    border-radius: 24px !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #fff !important;
    margin: 1.5rem 1.25rem !important;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3) !important;
  }
  
  .cta-box h3 {
    font-size: 1.5rem !important;
    color: #fff !important;
    font-weight: 700 !important;
    margin-bottom: 0.75rem !important;
  }
  
  .cta-box p {
    font-size: 1rem !important;
    color: rgba(255, 255, 255, 0.95) !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.6 !important;
  }
  
  .cta-box button,
  .contact-btn {
    padding: 1rem 2rem !important;
    font-size: 1rem !important;
    border-radius: 999px !important;
    background: #fff !important;
    color: #667eea !important;
    border: none !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
  }
  
  .cta-box button:active,
  .contact-btn:active {
    transform: scale(0.95) !important;
  }
  
  /* ===== 联系卡片特殊样式 ===== */
  .contact-card {
    text-align: center !important;
  }
  
  .contact-icon {
    width: 60px !important;
    height: 60px !important;
    margin: 0 auto 1rem !important;
    background: #f7fafc !important;
    border-radius: 16px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
  
  .contact-icon svg {
    width: 28px !important;
    height: 28px !important;
    stroke: #667eea !important;
  }
  
  .contact-detail {
    font-size: 1.1rem !important;
    color: #667eea !important;
    font-weight: 600 !important;
    margin: 0.75rem 0 !important;
  }
  
  .contact-desc {
    font-size: 0.9rem !important;
    color: #718096 !important;
  }
  
  /* ===== 回到顶部按钮 ===== */
  .back-to-top {
    width: 52px !important;
    height: 52px !important;
    bottom: 2rem !important;
    right: 1.5rem !important;
    background: #667eea !important;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4) !important;
    border-radius: 26px !important;
  }
  
  .back-to-top svg {
    width: 24px !important;
    height: 24px !important;
    stroke: #fff !important;
  }
}

/* ========================================
   小手机优化 (≤480px)
   ======================================== */
@media (max-width: 480px) {
  
  body {
    font-size: 15px !important;
  }
  
  /* Hero区域 */
  .hero-section {
    height: 60vh !important;
    min-height: 450px !important;
  }
  
  .hero-content {
    padding: 2rem 1.25rem !important;
  }
  
  .hero-title {
    font-size: 1.85rem !important;
  }
  
  .hero-subtitle {
    font-size: 0.95rem !important;
  }
  
  /* Section和卡片 */
  section {
    padding: 2rem 1rem !important;
  }
  
  .story-panel,
  .vision-card,
  .timeline-item,
  .contact-card,
  .service-card {
    padding: 1.5rem !important;
  }
  
  section h2 {
    font-size: 1.5rem !important;
  }
  
  .vision-card h3,
  .story-panel h3,
  .timeline-item h3 {
    font-size: 1.25rem !important;
  }
  
  .vision-card p,
  .story-panel p,
  .timeline-item p {
    font-size: 0.9rem !important;
  }
  
  /* 详情页 */
  .detail-header {
    padding: 2rem 1.25rem 1.75rem !important;
  }
  
  .detail-header h1 {
    font-size: 1.75rem !important;
  }
  
  .detail-article {
    padding: 2rem 1.25rem !important;
  }
  
  .detail-article h2 {
    font-size: 1.5rem !important;
  }
  
  .detail-article h3 {
    font-size: 1.25rem !important;
  }
  
  .detail-article p {
    font-size: 0.95rem !important;
  }
  
  /* CTA */
  .cta-box {
    padding: 2rem 1.5rem !important;
    margin: 1.25rem 1rem !important;
  }
  
  .cta-box h3 {
    font-size: 1.35rem !important;
  }
  
  /* Footer */
  footer {
    padding: 2.5rem 1.25rem 1.75rem !important;