/* ================================
   LUXWEAVE 奢织官网样式表
   Elegant White & Klein Blue Theme
   Trendy & Fashion Forward Design
   ================================ */

/* CSS变量 - 克莱因蓝主题 */
:root {
  /* 主色调 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fb;
  --bg-card: #ffffff;

  /* 克莱因蓝及辅助色 */
  --klein-blue: #002FA7;
  --klein-blue-dark: #001D66;
  --klein-blue-light: #3359B9;
  --accent-gray: #e5e7eb;

  /* 文字色 */
  --text-primary: #1a1a1a;
  --text-secondary: #444444;
  --text-muted: #888888;
  --text-blue: #002FA7;

  /* 渐变 */
  --gradient-klein: linear-gradient(135deg, #002FA7 0%, #001D66 100%);
  --gradient-soft: linear-gradient(135deg, #f8f9fb 0%, #ffffff 100%);
  --gradient-white-blue: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);

  /* 玻璃效果 (亮色版) */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 47, 167, 0.15);
  --glass-blur: blur(20px);

  /* 动画 */
  --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Web字体 - 本地引用确保跨平台一致性 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('../fonts/Inter-Light.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/Inter-Regular.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/Inter-Medium.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/Inter-SemiBold.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/Inter-Bold.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('../fonts/Inter-ExtraBold.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('../fonts/Inter-Black.woff2') format('woff2');
}

/* 重置与基础 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', 'Liberation Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 选中文字样式 */
::selection {
  background: var(--klein-blue);
  color: white;
  text-shadow: none;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--klein-blue);
  border-radius: 4px;
}

/* 通用样式 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 60px;
}

.section {
  padding: 150px 0;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 所有带锚点的元素添加滚动偏移 */
[id] {
  scroll-margin-top: 0;
}

/* 克莱因蓝文字效果 */
.klein-text {
  color: var(--klein-blue);
}

.glow-blue {
  text-shadow: 0 0 40px rgba(0, 47, 167, 0.2);
}

/* 玻璃卡片 */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
}

/* ===== 加载动画 ===== */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loading.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader {
  position: relative;
  width: 120px;
  height: 120px;
}

.loader-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid transparent;
  border-top-color: var(--klein-blue);
  border-radius: 50%;
  animation: spin 1.5s linear infinite;
}

.loader-ring:nth-child(2) {
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
  border-top-color: var(--klein-blue-light);
  animation-duration: 2s;
  animation-direction: reverse;
}

.loader-ring:nth-child(3) {
  width: 60%;
  height: 60%;
  top: 20%;
  left: 20%;
  border-top-color: var(--klein-blue-dark);
  animation-duration: 1s;
}

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

/* ===== 光标跟随效果 ===== */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 47, 167, 0.08) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: opacity 0.3s ease;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 30px 0;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  padding: 15px 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

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

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 4px;
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-subtitle {
  font-size: 0.65rem;
  letter-spacing: 3px;
  color: var(--text-muted);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 50px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 2px;
  position: relative;
  transition: var(--transition-fast);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--klein-blue);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--klein-blue);
}

.nav-link:hover::before {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.menu-toggle span {
  width: 30px;
  height: 2px;
  background: var(--klein-blue);
  transition: var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== Hero区域 ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  background: #ffffff;
}

/* 动态网格背景 */
.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(0, 47, 167, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 47, 167, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
  100% { transform: perspective(500px) rotateX(60deg) translateY(60px); }
}

/* 渐变光球 */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 10s ease-in-out infinite;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 47, 167, 0.12) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.hero-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 47, 167, 0.08) 0%, transparent 70%);
  bottom: -150px;
  left: -100px;
  animation-delay: -5s;
}

.hero-orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 47, 167, 0.1) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -2.5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-title {
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
  color: var(--text-primary);
}

.hero-title .line {
  display: block;
  overflow: hidden;
}

.hero-title .line span {
  display: inline-block;
  animation: slideUp 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  opacity: 0;
  transform: translateY(100%);
}

.hero-title .line:nth-child(1) span { animation-delay: 0.2s; }
.hero-title .line:nth-child(2) span { animation-delay: 0.4s; }
.hero-title .line:nth-child(3) span { animation-delay: 0.6s; }

.hero-title .line:nth-child(2) span {
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.hero-subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--klein-blue);
  margin-bottom: 20px;
  letter-spacing: 8px;
  animation: fadeIn 1s ease 0.8s forwards;
  opacity: 0;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 50px;
  animation: fadeIn 1s ease 1s forwards;
  opacity: 0;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.hero-buttons {
  display: flex;
  gap: 20px;
  animation: fadeIn 1s ease 1.2s forwards;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 40px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  border-radius: 50px;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--klein-blue);
  color: white;
}

.btn-primary::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: 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 47, 167, 0.3);
  background: var(--klein-blue-dark);
}

.btn-outline {
  background: transparent;
  color: var(--klein-blue);
  border: 1px solid var(--klein-blue);
}

.btn-outline:hover {
  background: rgba(0, 47, 167, 0.05);
  box-shadow: 0 0 30px rgba(0, 47, 167, 0.1);
  transform: translateY(-3px);
}

/* 滚动提示 */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  animation: fadeIn 1s ease 1.5s forwards;
  opacity: 0;
  z-index: 10;
  text-decoration: none;
  cursor: pointer;
}

/* 非首页 section 的向下箭头 */
.section-scroll {
  bottom: 30px;
  animation: none;
  opacity: 1;
}

/* section 内部容器保持正常布局 */
.section > .container {
  width: 100%;
  flex-shrink: 0;
}

.section-scroll .scroll-arrow svg {
  opacity: 0.5;
}

.section-scroll:hover .scroll-arrow svg {
  opacity: 1;
}

.scroll-text {
  display: none;
}

.scroll-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.scroll-arrow svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: var(--klein-blue);
  stroke-width: 1.5;
  animation: arrowBounce 2s ease-in-out infinite;
  opacity: 0;
}

.scroll-arrow svg:nth-child(1) {
  animation-delay: 0s;
}

.scroll-arrow svg:nth-child(2) {
  margin-top: -18px;
  animation-delay: 0.2s;
}

@keyframes arrowBounce {
  0% {
    opacity: 0;
    transform: translateY(-6px);
  }
  20% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
    transform: translateY(6px);
  }
  80% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateY(12px);
  }
}

/* ===== 滚动文字 ===== */
.marquee-section {
  padding: 30px 0;
  background: var(--klein-blue);
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.marquee {
  display: flex;
  animation: marquee 30s linear infinite;
}

.marquee-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  padding-right: 50px;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== 统计数据 ===== */
.stats-section {
  padding: 100px 0;
  background: var(--bg-primary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.stat-item {
  text-align: center;
  padding: 40px 20px;
  border-radius: 24px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.stat-item:hover {
  transform: translateY(-10px);
  border-color: var(--klein-blue);
  box-shadow: 0 20px 60px rgba(0, 47, 167, 0.1);
}

.stat-value {
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--text-primary);
  margin-top: 15px;
  text-transform: uppercase;
}

.stat-sublabel {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 5px;
}

/* ===== 关于我们 ===== */
.about-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--klein-blue);
  opacity: 0.02;
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
}

.section-header {
  margin-bottom: 80px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--klein-blue);
  margin-bottom: 20px;
  padding: 8px 25px;
  border: 1px solid var(--klein-blue);
  border-radius: 30px;
  background: rgba(0, 47, 167, 0.05);
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.about-vision {
  font-size: 1.5rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-primary);
  padding-left: 30px;
  border-left: 3px solid var(--klein-blue);
  margin-top: 40px;
  background: linear-gradient(90deg, rgba(0, 47, 167, 0.05) 0%, transparent 100%);
  padding-top: 15px;
  padding-bottom: 15px;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.about-feature {
  padding: 40px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.about-feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--klein-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-fast);
}

.about-feature:hover {
  transform: translateY(-10px);
  border-color: var(--klein-blue);
  box-shadow: 0 30px 60px rgba(0, 47, 167, 0.1);
}

.about-feature:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--klein-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  fill: white;
}

.about-feature h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.about-feature p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 产品系列 ===== */
.products-section {
  background: var(--bg-primary);
}

.products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 60px;
}

.product-filter {
  display: flex;
  gap: 15px;
}

.filter-btn {
  padding: 12px 25px;
  background: transparent;
  border: 1px solid var(--accent-gray);
  color: var(--text-muted);
  border-radius: 30px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--klein-blue);
  border-color: transparent;
  color: white;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.product-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-15px);
  border-color: var(--klein-blue);
  box-shadow: 0 30px 60px rgba(0, 47, 167, 0.1);
}

.product-image {
  height: 280px;
  position: relative;
  overflow: hidden;
  background: var(--bg-secondary);
}

.product-pattern {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  transition: var(--transition-smooth);
}

.product-pattern span {
  transition: var(--transition-smooth);
}

.product-card:hover .product-pattern span {
  transform: scale(1.1) rotate(2deg);
}

.product-series {
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: white;
  background: var(--gradient-klein);
  backdrop-filter: blur(10px);
  padding: 8px 15px;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(0, 47, 167, 0.3);
}

.product-info {
  padding: 30px;
}

.product-info h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.product-info .description {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 15px;
  line-height: 1.6;
}

.product-info .specs {
  font-size: 0.8rem;
  color: var(--klein-blue);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.color-options {
  display: flex;
  gap: 10px;
}

.color-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--accent-gray);
  transition: var(--transition-fast);
  cursor: pointer;
}

.color-dot:hover {
  transform: scale(1.3);
  border-color: var(--klein-blue);
}

/* ===== 分页组件 ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin-top: 60px;
  padding: 30px 0;
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 45px;
  height: 45px;
  padding: 0 15px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.page-btn:hover:not(.disabled):not(.active) {
  background: rgba(0, 47, 167, 0.05);
  border-color: var(--klein-blue);
  color: var(--klein-blue);
  transform: translateY(-2px);
}

.page-btn.active {
  background: var(--klein-blue);
  border-color: var(--klein-blue);
  color: white;
  box-shadow: 0 8px 20px rgba(0, 47, 167, 0.25);
}

.page-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-prev,
.page-next {
  padding: 0;
}

.page-ellipsis {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0 5px;
}

.page-info {
  display: none;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 15px;
  padding: 10px 20px;
  background: var(--bg-secondary);
  border-radius: 20px;
}

.page-info span:first-child {
  color: var(--klein-blue);
  font-weight: 700;
}

/* ===== 工艺流程 ===== */
.process-section {
  background: var(--bg-secondary);
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--accent-gray);
}

.process-card {
  text-align: center;
  padding: 50px 30px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  position: relative;
  transition: var(--transition-smooth);
}

.process-card:hover {
  transform: translateY(-10px);
  border-color: var(--klein-blue);
  box-shadow: 0 20px 60px rgba(0, 47, 167, 0.1);
}

.process-number {
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 20px;
}

.process-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.process-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--klein-blue);
  margin-bottom: 20px;
}

.process-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 新闻资讯 ===== */
.news-section {
  background: var(--bg-primary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.news-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.news-card:hover {
  transform: translateY(-10px);
  border-color: var(--klein-blue);
  box-shadow: 0 30px 60px rgba(0, 47, 167, 0.1);
}

.news-image-link {
  display: block;
  width: 100%;
  text-decoration: none;
}

.news-image {
  height: 220px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.news-card:nth-child(1) .news-image {
  background: linear-gradient(135deg, #002FA7 0%, #3359B9 100%);
}

.news-card:nth-child(2) .news-image {
  background: linear-gradient(135deg, #ffffff 0%, #eef2ff 100%);
}

.news-card:nth-child(3) .news-image {
  background: linear-gradient(135deg, #001D66 0%, #002FA7 100%);
}

.news-image svg {
  width: 60px;
  height: 60px;
  fill: rgba(255, 255, 255, 0.3);
}

.news-card:nth-child(2) .news-image svg {
  fill: rgba(0, 47, 167, 0.1);
}

.news-tag {
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: white;
  background: var(--gradient-klein);
  backdrop-filter: blur(10px);
  padding: 8px 15px;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(0, 47, 167, 0.3);
}

.news-content {
  padding: 35px;
}

.news-date {
  font-size: 0.8rem;
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.news-content h3 {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 15px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.news-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 25px;
  color: var(--klein-blue);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: var(--transition-fast);
}

.news-link:hover {
  gap: 15px;
  color: var(--klein-blue-dark);
}

/* ===== 联系我们 ===== */
.contact-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 47, 167, 0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
}

.contact-info h3 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 40px;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 25px;
  margin-bottom: 35px;
}

.contact-icon {
  width: 55px;
  height: 55px;
  border-radius: 16px;
  background: var(--gradient-klein);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 10px 20px rgba(0, 47, 167, 0.2);
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  fill: white;
}

.contact-item-content h4 {
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-item-content p {
  font-size: 1.1rem;
  color: var(--text-primary);
}

.contact-form {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  padding: 50px;
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
}

.form-group label .required {
  color: #e53935;
  margin-left: 2px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 18px 25px;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-gray);
  border-radius: 15px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--klein-blue);
  background: #ffffff;
  box-shadow: 0 0 30px rgba(0, 47, 167, 0.05);
}

.form-group input.input-error,
.form-group textarea.input-error {
  border-color: #e53935;
}

.form-error-msg {
  display: block;
  color: #e53935;
  font-size: 0.8rem;
  margin-top: 8px;
}

.form-group textarea {
  height: 150px;
  resize: none;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 100px 0 50px;
  border-top: 1px solid var(--glass-border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 80px;
}

.footer-brand {
  max-width: 400px;
}

.footer-slogan {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.3;
  margin-top: 30px;
  background: var(--gradient-klein);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
}

.footer-column h4 {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 25px;
  color: var(--text-muted);
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: 15px;
}

.footer-column ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--klein-blue);
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  gap: 30px;
}

.footer-legal a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--klein-blue);
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 50px;
  height: 50px;
  background: var(--klein-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
  box-shadow: 0 10px 30px rgba(0, 47, 167, 0.2);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-5px);
  background: var(--klein-blue-dark);
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .container { padding: 0 40px; }
  .about-content { gap: 60px; }
  .footer-content { gap: 40px; }
}

@media (max-width: 992px) {
  .section { padding: 100px 0; }
  .about-content { grid-template-columns: 1fr; gap: 80px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(1, 1fr); }
  .contact-wrapper { grid-template-columns: 1fr; gap: 60px; }
  .footer-content { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 25px; }
  .hero-title { font-size: 3.5rem; }
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.5s;
    z-index: 999;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
  }
  .nav-menu.active { right: 0; }
  .menu-toggle { display: flex; }
  .stats-grid { gap: 20px; }
  .stat-value { font-size: 3rem; }
  .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }

  /* Hero区域移动端适配 */
  .hero-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .hero-buttons .btn {
    width: 100%;
    text-align: center;
  }
  .hero-subtitle {
    font-size: 1rem;
    letter-spacing: 4px;
  }
  .hero-description {
    font-size: 1rem;
  }

  /* 光标跟随效果在移动端隐藏 */
  .cursor-glow {
    display: none;
  }

  /* 产品头部移动端适配 */
  .products-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 30px;
  }
  .product-filter {
    flex-wrap: wrap;
    width: 100%;
  }
  .filter-btn {
    flex: 1;
    min-width: calc(50% - 10px);
    text-align: center;
  }

  /* 分页组件移动端适配 */
  .pagination {
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 40px;
  }
  .page-numbers {
    order: 2;
    width: 100%;
    justify-content: center;
    margin-top: 10px;
  }
  .page-prev,
  .page-next {
    order: 1;
  }
  .page-next {
    order: 3;
  }
  .page-btn {
    min-width: 40px;
    height: 40px;
    font-size: 0.85rem;
  }
  .page-info {
    display: block;
    order: 4;
    width: 100%;
    text-align: center;
    margin-left: 0;
    margin-top: 10px;
  }

  /* 工艺流程移动端适配 */
  .process-grid::before {
    display: none;
  }

  /* Section头部间距调整 */
  .section-header {
    margin-bottom: 50px;
  }
  .section-header[style*="margin-bottom: 80px"] {
    margin-bottom: 50px !important;
  }

  /* 关于我们特性卡片 */
  .about-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .about-feature {
    padding: 30px;
  }
  .about-vision {
    font-size: 1.2rem;
    padding-left: 20px;
  }

  /* 联系表单移动端适配 */
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  .contact-form {
    padding: 30px;
  }
  .contact-info h3 {
    font-size: 2rem;
  }

  /* 页脚移动端适配 */
  .footer-top {
    flex-direction: column;
    gap: 50px;
  }
  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 100%;
  }
  .footer-slogan {
    font-size: 1.4rem;
  }
  .footer {
    padding: 60px 0 40px;
  }
  .footer-legal {
    flex-direction: column;
    gap: 10px;
  }
}

/* 超小屏幕适配 (480px及以下) */
@media (max-width: 480px) {
  .container { padding: 0 20px; }

  /* Hero区域 */
  .hero-title { font-size: 2.5rem; }
  .hero-subtitle {
    font-size: 0.85rem;
    letter-spacing: 2px;
  }
  .hero-description {
    font-size: 0.9rem;
  }
  .btn {
    padding: 15px 30px;
    font-size: 0.85rem;
  }

  /* Section样式 */
  .section {
    padding: 80px 0;
    min-height: auto;
  }
  .section-title {
    font-size: 2rem;
  }
  .section-tag {
    font-size: 0.7rem;
    padding: 6px 18px;
  }

  /* 统计数据 */
  .stats-section {
    padding: 60px 0;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .stat-item {
    padding: 30px 20px;
  }
  .stat-value {
    font-size: 2.5rem;
  }
  .stat-label {
    font-size: 0.75rem;
    letter-spacing: 2px;
  }

  /* 产品卡片 */
  .product-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .product-image {
    height: 220px;
  }
  .product-info {
    padding: 20px;
  }
  .product-info h3 {
    font-size: 1.2rem;
  }
  .filter-btn {
    min-width: 100%;
    padding: 10px 20px;
  }

  /* 分页组件超小屏幕适配 */
  .pagination {
    margin-top: 30px;
    padding: 20px 0;
  }
  .page-numbers {
    gap: 5px;
  }
  .page-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 0.8rem;
    border-radius: 10px;
  }
  .page-ellipsis {
    padding: 0 3px;
  }
  .page-info {
    font-size: 0.8rem;
    padding: 8px 15px;
  }

  /* 工艺流程 */
  .process-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .process-card {
    padding: 35px 25px;
  }
  .process-number {
    font-size: 3rem;
  }
  .process-card h3 {
    font-size: 1.3rem;
  }

  /* 新闻卡片 */
  .news-grid {
    gap: 25px;
  }
  .news-image {
    height: 180px;
  }
  .news-content {
    padding: 25px;
  }
  .news-content h3 {
    font-size: 1.2rem;
  }

  /* 联系我们 */
  .contact-wrapper {
    gap: 40px;
  }
  .contact-info h3 {
    font-size: 1.6rem;
    margin-bottom: 30px;
  }
  .contact-item {
    gap: 15px;
    margin-bottom: 25px;
  }
  .contact-icon {
    width: 45px;
    height: 45px;
  }
  .contact-icon svg {
    width: 20px;
    height: 20px;
  }
  .contact-item-content p {
    font-size: 1rem;
  }
  .contact-form {
    padding: 25px;
    border-radius: 20px;
  }
  .form-group input,
  .form-group textarea {
    padding: 15px 20px;
  }

  /* 页脚 */
  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .footer-brand {
    text-align: center;
  }
  .footer-slogan {
    font-size: 1.2rem;
  }
  .logo-text {
    font-size: 1.3rem;
  }

  /* 滚动文字 */
  .marquee-section {
    padding: 20px 0;
  }
  .marquee-text {
    font-size: 0.85rem;
    letter-spacing: 2px;
  }

  /* 回到顶部按钮 */
  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
  }

  /* 导航栏 */
  .navbar {
    padding: 20px 0;
  }
  .navbar.scrolled {
    padding: 12px 0;
  }
  .logo-text {
    font-size: 1.2rem;
    letter-spacing: 2px;
  }
  .logo-subtitle {
    font-size: 0.55rem;
    letter-spacing: 2px;
  }
  .nav-menu {
    width: 100%;
  }

  /* 滚动指示器 */
  .scroll-arrow svg {
    width: 26px;
    height: 26px;
  }
}