/* ================================================================
   连峰粉体官网 · Apple 官网风格 99% 还原版
   设计基准：Apple.com 官方设计规范 | 极简·克制·留白·原生质感
   还原点：原生毛玻璃导航 · 纤细紧缩字距 · 干净白卡 · 极淡阴影 · 顺滑动效
   增强：碳酸钙粉体专属质感 · 细腻哑光纹理 · 粉体飘散装饰
   ================================================================ */

/* ================================================================
   一、设计令牌：Apple 官方精确色值与参数
   ================================================================ */
:root {
  /* 基础色板 - Apple 官网标准色 */
  --bg: #f5f5f7;
  --bg-dark: #000000;
  --card: #ffffff;
  --card-dark: #1c1c1e;

  --text-primary: #1d1d1f;
  --text-primary-dark: #f5f5f7;
  --text-secondary: #86868b;
  --text-secondary-dark: #8e8e93;
  --text-tertiary: #c7c7cc;

  /* Apple 官方系统蓝 */
  --apple-blue: #0071e3;
  --apple-blue-hover: #0077ed;
  --apple-blue-pressed: #005bb5;
  --apple-blue-bg: rgba(0, 113, 227, 0.08);

  /* 功能色 */
  --apple-green: #34c759;
  --apple-orange: #ff9500;
  --apple-red: #ff3b30;

  /* 分隔线 - 极淡消融感 */
  --separator: rgba(0, 0, 0, 0.08);
  --separator-dark: rgba(255, 255, 255, 0.08);

  /* 遮罩 */
  --overlay: rgba(0, 0, 0, 0.4);

  /* 毛玻璃材质 - 导航/浮层专用 */
  --glass-nav: rgba(255, 255, 255, 0.72);
  --glass-nav-dark: rgba(0, 0, 0, 0.5);
  --glass-float: rgba(255, 255, 255, 0.76);
  --glass-float-dark: rgba(28, 28, 30, 0.6);

  /* 阴影系统 - 极淡克制，几乎不可见 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.08);

  /* 圆角 - Apple 标准连续曲率 */
  --radius-xs: 6px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 30px;
  --radius-full: 980px;

  /* 排版 - Apple SF Pro 优先，紧缩字距 */
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --line-height: 1.6;

  /* 布局 */
  --container-max: 1200px;
  --header-height: 52px;
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);

  /* 模糊强度 */
  --blur-nav: saturate(180%) blur(20px);
  --blur-float: saturate(180%) blur(30px);

  /* 动效 - Apple 标准缓动，顺滑无弹跳 */
  --easing: cubic-bezier(0.25, 0.1, 0.25, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.25s;
  --duration-slow: 0.35s;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--bg-dark);
    --card: var(--card-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --separator: var(--separator-dark);
    --glass-nav: var(--glass-nav-dark);
    --glass-float: var(--glass-float-dark);
  }
}

/* ================================================================
   二、全局基础样式
   ================================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
  scroll-padding-top: calc(var(--header-height) + var(--safe-area-top) + 20px);
  font-size: 17px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  font-weight: 400;
  letter-spacing: -0.01em;
}

body.is-menu-open,
body.is-modal-open {
  overflow: hidden;
}

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

a {
  color: var(--apple-blue);
  text-decoration: none;
  transition: color var(--duration-fast) var(--easing);
}
a:hover {
  color: var(--apple-blue-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  -webkit-appearance: none;
  appearance: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--apple-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* 滚动条 - Apple 细款 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(120, 120, 128, 0.3);
  border-radius: var(--radius-full);
  transition: background var(--duration-normal) var(--easing);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(120, 120, 128, 0.5);
}

/* 无障碍跳转 */
.skip-link {
  position: absolute;
  top: -100%;
  left: 24px;
  z-index: 2000;
  padding: 8px 16px;
  background: var(--apple-blue);
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 0.9rem;
  transition: top var(--duration-normal) var(--easing);
}
.skip-link:focus {
  top: calc(16px + var(--safe-area-top));
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 max(24px, var(--safe-area-left)) max(0, var(--safe-area-bottom));
}

.noscript-warning {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: calc(24px + var(--safe-area-bottom));
  z-index: 9999;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background: #fff3cd;
  color: #7a5a00;
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  text-align: center;
}

/* 区块通用 - 大留白 */
.section {
  padding: 110px 0;
}
.section--light {
  background: var(--bg);
}

/* 浅色区块粉体哑光细腻基底 - 碳酸钙专属质感 */
.section--soft {
  position: relative;
  background-color: #ffffff;
  background-image: 
    radial-gradient(circle at 20% 15%, rgba(248, 250, 252, 0.9) 0%, transparent 50%),
    radial-gradient(circle at 80% 85%, rgba(252, 252, 253, 0.8) 0%, transparent 55%);
}
.section--soft::before {
  content: "";
  position: absolute;
  inset: 0;
  /* 微米级噪点纹理，模拟超细碳酸钙颗粒细腻感 */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}
.section--soft .container {
  position: relative;
  z-index: 1;
}

@media (prefers-color-scheme: dark) {
  .section--soft::before {
    opacity: 0.07;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header--left {
  text-align: left;
  margin-bottom: 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--apple-blue);
  margin-bottom: 12px;
  line-height: 1.5;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto;
  font-weight: 400;
}
.section-header--left .section-subtitle {
  max-width: 100%;
  margin: 0;
}

/* ================================================================
   三、按钮系统 - Apple 官网 1:1 还原
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 26px;
  border-radius: var(--radius-full);
  font-weight: 400;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: all var(--duration-fast) var(--easing);
  touch-action: manipulation;
  line-height: 1.2;
  will-change: transform;
}
.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--apple-blue);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--apple-blue-hover);
}
.btn-primary:active {
  background: var(--apple-blue-pressed);
}

.btn-outline {
  background: transparent;
  color: var(--apple-blue);
  border: 1px solid var(--apple-blue);
}
.btn-outline:hover {
  background: var(--apple-blue-bg);
}
.btn-outline:active {
  background: rgba(0, 113, 227, 0.12);
}

/* Hero 区域按钮 */
.hero .btn-primary {
  background: #ffffff;
  color: #1d1d1f;
}
.hero .btn-primary:hover {
  background: #f5f5f7;
}

.hero .btn-outline {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
}
.hero .btn-outline:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ================================================================
   四、导航栏 - Apple 官网原生毛玻璃
   ================================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(var(--header-height) + var(--safe-area-top));
  z-index: 100;
  background: var(--glass-nav);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border-bottom: 0.5px solid transparent;
  transition: all var(--duration-normal) var(--easing);
  padding-top: var(--safe-area-top);
}

/* 滚动后出现分隔线 */
.site-header.is-scrolled {
  border-bottom-color: var(--separator);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text-primary);
  flex-shrink: 0;
  transition: opacity var(--duration-fast) var(--easing);
  letter-spacing: -0.02em;
}
.brand:hover {
  opacity: 0.7;
}

/* Logo 修复：圆角适配，完整显示右上角标识 */
.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  padding: 1px;
  object-fit: contain;
  object-position: center;
}

/* 桌面导航 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--easing);
  white-space: nowrap;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  .nav-link:hover,
  .nav-link.active {
    background: rgba(255, 255, 255, 0.08);
  }
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--apple-blue);
  color: #fff;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 400;
  white-space: nowrap;
  min-height: 30px;
  transition: background var(--duration-fast) var(--easing);
}
.header-cta:hover {
  background: var(--apple-blue-hover);
}

/* 移动端菜单 */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: transparent;
  font-size: 1.2rem;
  color: var(--text-primary);
  transition: background var(--duration-fast) var(--easing);
  flex-shrink: 0;
}
.mobile-menu-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  backdrop-filter: brightness(0.8);
  -webkit-backdrop-filter: brightness(0.8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--easing);
}
.mobile-menu-overlay:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu-panel {
  position: fixed;
  top: calc(var(--header-height) + var(--safe-area-top));
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 210;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-slow) var(--easing);
  overflow-y: auto;
  padding-bottom: var(--safe-area-bottom);
  border-top: 0.5px solid var(--separator);
}

.mobile-menu-panel:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.mobile-menu-panel .nav-link {
  font-size: 1.1rem;
  padding: 14px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  min-height: 44px;
  border-bottom: 0.5px solid var(--separator);
}
.mobile-menu-panel .nav-link:last-of-type {
  border-bottom: none;
}
.mobile-menu-panel .nav-link:hover,
.mobile-menu-panel .nav-link.active {
  background: rgba(0, 0, 0, 0.04);
  color: var(--apple-blue);
}
.mobile-menu-cta {
  margin-top: 20px;
  padding: 0 12px;
}
.mobile-menu-cta .btn {
  width: 100%;
  min-height: 44px;
}

/* ================================================================
   五、Hero 首屏 - Apple 产品页风格
   ================================================================ */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  background: #000;
  padding-top: calc(var(--header-height) + var(--safe-area-top));
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
  line-height: 0;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0,0,0,0.1) 0%,
    rgba(0,0,0,0.3) 60%,
    rgba(0,0,0,0.6) 100%
  );
  pointer-events: none;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.hero-bottom {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 160px 0 40px;
}
.hero-bottom .container {
  max-width: 780px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 600;
  line-height: 1.08;
  color: #ffffff;
  margin-bottom: 20px;
  letter-spacing: -0.04em;
}
.hero-title span {
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  -webkit-text-fill-color: inherit !important;
  color: inherit !important;
  font-weight: inherit !important;
}

.hero-subtitle {
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 600px;
  color: rgba(255,255,255,0.85);
  font-weight: 400;
  line-height: 1.6;
}

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

.hero-trust {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 0 0 60px;
  background: transparent;
}
.hero-trust .container {
  max-width: 980px;
  background: transparent;
}
.trust-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background: transparent;
}

.trust-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 0;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: #ffffff;
  border: 0.5px solid rgba(255, 255, 255, 0.18);
  min-height: 52px;
  transition: background var(--duration-fast) var(--easing);
}
.trust-card:hover {
  background: rgba(255, 255, 255, 0.2);
}
.trust-card__icon {
  font-size: 0.5rem;
  color: #ffffff;
  flex-shrink: 0;
  opacity: 0.8;
}

/* ================================================================
   六、通用卡片 - Apple 干净白卡风格
   ================================================================ */
.stat-card,
.reason-card,
.strength-card,
.product-card,
.application-card {
  background: var(--card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: all var(--duration-normal) var(--easing);
  overflow: hidden;
  border: 0.5px solid var(--separator);
  position: relative;
}

.stat-card:hover,
.reason-card:hover,
.strength-card:hover,
.product-card:hover,
.application-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

/* 产品卡片粉体漫反射光效 - 呼应高白特性 */
.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 45%;
  background: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--easing);
  pointer-events: none;
  z-index: 1;
}
.product-card:hover::before {
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  .product-card::before {
    background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0) 100%);
  }
}

/* ================================================================
   七、各板块内容样式
   ================================================================ */

/* 关于连峰 */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.about-image-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-normal) var(--easing);
}
.about-image-card--large {
  grid-column: span 2;
}
.about-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--easing);
}
.about-image-card--large .about-img {
  height: 280px;
}
.about-image-card:hover .about-img {
  transform: scale(1.03);
}
.about-image-card:hover {
  box-shadow: var(--shadow-md);
}
.about-image-card span {
  position: absolute;
  bottom: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  color: #fff;
  font-weight: 500;
}
.about-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.stat-card {
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
  min-height: 100px;
}
.stat-number {
  font-size: 2rem;
  font-weight: 600;
  color: var(--apple-blue);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 产品中心 */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.product-visual {
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg);
}
.product-visual img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--easing);
}
.product-card:hover .product-visual img {
  transform: scale(1.04);
}
.product-content {
  padding: 24px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.product-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}
.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  background: var(--apple-blue-bg);
  color: var(--apple-blue);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  transition: all var(--duration-fast) var(--easing);
}
.product-card:hover .tag {
  background: var(--apple-blue);
  color: #fff;
}

/* 技术参数表格 */
.specs-table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  background: var(--card);
  -webkit-overflow-scrolling: touch;
  border: 0.5px solid var(--separator);
}

.specs-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  text-align: center;
  font-size: 0.9rem;
}

.specs-table thead th {
  background: linear-gradient(90deg, var(--apple-blue) 0%, #0077ed 100%);
  color: #ffffff;
  padding: 14px 12px;
  font-weight: 500;
  position: sticky;
  top: 0;
  z-index: 1;
  letter-spacing: 0.01em;
}

.specs-table th:first-child {
  border-radius: var(--radius-md) 0 0 0;
}
.specs-table th:last-child {
  border-radius: 0 var(--radius-md) 0 0;
}

.specs-table td {
  padding: 14px 12px;
  border-bottom: 0.5px solid var(--separator);
  color: var(--text-primary);
  white-space: nowrap;
  transition: background var(--duration-fast) var(--easing);
}

.specs-table tbody tr:last-child td {
  border-bottom: none;
}
.specs-table tbody tr:hover {
  background: var(--apple-blue-bg);
}
.specs-table tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}
.specs-table tbody tr:nth-child(even):hover {
  background: var(--apple-blue-bg);
}

/* 应用领域 */
.application-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.application-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.application-img {
  position: relative;
  width: 100%;
  padding-top: 65%;
  overflow: hidden;
  flex-shrink: 0;
}
.application-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s var(--easing);
}
.application-card:hover .application-img img {
  transform: scale(1.04);
}
.application-card h3 {
  padding: 20px 22px 8px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.application-card p {
  padding: 0 22px 22px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.65;
  flex: 1;
}

/* 制造实力 */
.strength-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-xs);
  border: 0.5px solid var(--separator);
}

.strength-showcase__media img {
  border-radius: var(--radius-md);
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.5s var(--easing);
}
.strength-showcase:hover .strength-showcase__media img {
  transform: scale(1.02);
}
.strength-showcase:hover {
  box-shadow: var(--shadow-sm);
}
.strength-showcase__text h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.strength-showcase__text p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.manufacturing-flow {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 64px;
  position: relative;
}
.process-step {
  text-align: center;
  flex: 1 1 140px;
  max-width: 200px;
  position: relative;
}
.process-step__img {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--duration-normal) var(--easing);
}
.process-step__img img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--easing);
}
.process-step:hover .process-step__img img {
  transform: scale(1.04);
}
.process-step:hover .process-step__img {
  box-shadow: var(--shadow-sm);
}
.step-dot {
  display: block;
  width: 10px;
  height: 10px;
  background: var(--apple-blue);
  border-radius: 50%;
  margin: 0 auto 10px;
}
.process-step h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.strength-card {
  padding: 24px 20px;
  min-height: 130px;
}
.strength-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.strength-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.65;
}

/* 企业文化/荣誉墙 */
.culture-section {
  position: relative;
  display: block;
  overflow: hidden;
  padding: 0;
  background: var(--bg);
}
.culture-bg {
  width: 100%;
  line-height: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg);
}
.culture-bg img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  opacity: 1 !important;
}
.culture-container,
.culture-card,
.culture-bg::after {
  display: none !important;
}

/* 选择连峰 */
.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.reason-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 22px;
  min-height: 130px;
}
.reason-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--apple-blue);
  opacity: 0.7;
  line-height: 1;
  flex-shrink: 0;
  min-width: 36px;
  font-variant-numeric: tabular-nums;
}
.reason-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.reason-content p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* CTA 联系区域 */
.cta-section {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  background: var(--card);
  border-top: 0.5px solid var(--separator);
}
.cta-card {
  position: relative;
  background: transparent;
  border-radius: 0;
  padding: 0;
  text-align: center;
  box-shadow: none;
  border: none;
  max-width: 680px;
  margin: 0 auto;
  z-index: 1;
}
.cta-card h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.cta-card p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* CTA区粉体飘散装饰 - 模拟微粉轻盈感 */
.powder-decoration {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
  transition: transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.powder-decoration--1 {
  width: 360px;
  height: 360px;
  top: -120px;
  left: -100px;
  background: radial-gradient(circle, rgba(255,255,255,0.9) 0%, rgba(248, 250, 252, 0.4) 40%, rgba(255,255,255,0) 75%);
  filter: blur(25px);
  animation: powderFloat 9s ease-in-out infinite alternate;
}
.powder-decoration--2 {
  width: 420px;
  height: 420px;
  bottom: -160px;
  right: -120px;
  background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(248, 250, 252, 0.3) 45%, rgba(255,255,255,0) 70%);
  filter: blur(35px);
  animation: powderFloat 11s ease-in-out infinite alternate-reverse;
}

@keyframes powderFloat {
  0% { 
    transform: translate(0, 0) scale(1); 
    opacity: 0.6; 
  }
  100% { 
    transform: translate(35px, 25px) scale(1.06); 
    opacity: 0.85; 
  }
}

/* 暗色模式粉体装饰适配 */
@media (prefers-color-scheme: dark) {
  .powder-decoration--1,
  .powder-decoration--2 {
    background: radial-gradient(circle, rgba(28, 28, 30, 0.8) 0%, rgba(28, 28, 30, 0.2) 45%, rgba(28, 28, 30, 0) 70%);
  }
}

/* ================================================================
   八、浮动按钮与弹窗
   ================================================================ */
.float-actions {
  position: fixed;
  right: calc(24px + var(--safe-area-right));
  bottom: calc(30px + var(--safe-area-bottom));
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 90;
}

.float-action {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
  justify-content: center;
  gap: 0;
  background: var(--glass-float);
  backdrop-filter: var(--blur-float);
  -webkit-backdrop-filter: var(--blur-float);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  transition: all var(--duration-fast) var(--easing);
  display: flex;
  align-items: center;
  touch-action: manipulation;
  border: 0.5px solid var(--separator);
  position: relative;
  overflow: hidden;
}

.float-action:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.float-action:active {
  transform: translateY(0) scale(0.97);
}

.float-action__status {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--apple-green);
  flex-shrink: 0;
  border: 2px solid var(--card);
}

.float-action__icon {
  width: 22px;
  height: 22px;
  color: var(--apple-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin: 0;
  position: relative;
  z-index: 2;
}
.float-action__svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}
.float-action__content,
.float-action__label,
.float-action__desc {
  display: none;
}

/* 电话按钮 */
.float-action--phone {
  background: var(--apple-blue);
  color: #ffffff;
  border: none;
}
.float-action--phone:hover {
  background: var(--apple-blue-hover);
}
.float-action--phone .float-action__svg {
  stroke: #ffffff;
}

/* 微信按钮 */
.float-action--wechat {
  background: #07c160;
  color: #ffffff;
  border: none;
}
.float-action--wechat:hover {
  background: #06ad56;
}
.float-action--wechat .float-action__svg {
  fill: #ffffff;
  stroke: none;
}

.float-action--top {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}
.float-action--top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* 微信弹窗 */
.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--easing);
}

/* 弹窗动画兜底 - 兼容hidden属性切换 */
.wechat-modal[hidden] {
  display: flex;
  opacity: 0;
  pointer-events: none;
}

.wechat-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}
.wechat-modal__overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: brightness(0.8);
  -webkit-backdrop-filter: brightness(0.8);
}

.wechat-modal__card {
  position: relative;
  z-index: 1;
  width: min(360px, calc(100vw - 48px));
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: scale(0.96) translateY(8px);
  transition: transform var(--duration-slow) var(--easing);
  outline: none;
  border: 0.5px solid var(--separator);
  overflow: hidden;
}

.wechat-modal.is-open .wechat-modal__card {
  transform: scale(1) translateY(0);
}
.wechat-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: rgba(0,0,0,0.05);
  color: var(--text-secondary);
  font-size: 1.3rem;
  line-height: 1;
  transition: all var(--duration-fast) var(--easing);
  display: flex;
  align-items: center;
  justify-content: center;
}
.wechat-modal__close:hover {
  background: rgba(0,0,0,0.1);
  color: var(--text-primary);
}
.wechat-modal__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.wechat-modal__qr {
  width: 220px;
  height: 220px;
  object-fit: cover;
  margin: 0 auto 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}
.wechat-modal__desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ================================================================
   九、页脚
   ================================================================ */
.site-footer {
  background: #f5f5f7;
  color: #86868b;
  padding: 56px 0 24px;
  padding-bottom: calc(24px + var(--safe-area-bottom));
  font-size: 0.85rem;
  border-top: 0.5px solid var(--separator);
}

@media (prefers-color-scheme: dark) {
  .site-footer {
    background: #1c1c1e;
    color: #8e8e93;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col .brand {
  color: var(--text-primary);
  margin-bottom: 8px;
}
.footer-col .brand-logo {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 6px;
  padding: 2px;
}
.footer-col p,
.footer-col a {
  font-size: 0.85rem;
  color: #86868b;
  line-height: 1.6;
}
@media (prefers-color-scheme: dark) {
  .footer-col p,
  .footer-col a {
    color: #8e8e93;
  }
}
.footer-col a:hover {
  color: var(--text-primary);
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.footer-bottom {
  padding-top: 20px;
  border-top: 0.5px solid var(--separator);
  text-align: center;
}
.footer-bottom p,
.footer-bottom a {
  font-size: 0.8rem;
  color: #86868b;
}
@media (prefers-color-scheme: dark) {
  .footer-bottom p,
  .footer-bottom a {
    color: #636366;
  }
}
.footer-bottom a:hover {
  color: var(--text-primary);
}
.footer-divider {
  margin: 0 8px;
  color: #d2d2d7;
}

/* ================================================================
   十、动画与响应式
   ================================================================ */

/* 滚动淡入 - Apple 克制风格 */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--easing), transform 0.6s var(--easing);
  will-change: opacity, transform;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* 平板 ≤1024px */
@media (max-width: 1024px) {
  .section {
    padding: 88px 0;
  }
  .product-grid,
  .application-grid,
  .reason-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .strength-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid,
  .strength-showcase {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .about-visual {
    max-width: 720px;
    margin: 0 auto;
  }
  .strength-showcase__media img {
    height: 260px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-col:first-child {
    grid-column: span 2;
  }
}

/* 导航断点 ≤900px */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
}

/* 移动端 ≤768px */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }
  .section-header {
    margin-bottom: 44px;
  }

  /* Hero 移动端 */
  .hero {
    min-height: auto;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    padding-top: calc(var(--header-height) + var(--safe-area-top));
  }
  .hero-bg {
    position: relative;
    width: 100%;
    line-height: 0;
  }
  .hero-bg::after {
    display: none;
  }
  .hero-bg img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }

  .hero-bottom {
    position: relative;
    z-index: 2;
    padding: 28px 0 20px;
    background: var(--bg);
    color: var(--text-primary);
  }
  .hero-bottom .container {
    max-width: 100%;
    text-align: left;
    align-items: flex-start;
  }
  .hero-label {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    color: var(--apple-blue);
    margin-bottom: 12px;
  }
  .hero-title {
    font-size: 2rem;
    line-height: 1.15;
    text-align: left;
    color: var(--text-primary);
    margin-bottom: 14px;
  }
  .hero-subtitle {
    color: var(--text-secondary) !important;
    margin-bottom: 24px;
    font-size: 0.95rem;
  }
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    min-height: 44px;
    font-size: 0.9rem;
  }
  .hero .btn-outline {
    background: #ffffff !important;
    color: var(--apple-blue) !important;
    border: 1px solid var(--apple-blue) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
  .hero .btn-outline:hover {
    background: var(--apple-blue-bg) !important;
  }

  .hero-trust {
    margin-top: 0;
    padding: 0 0 32px;
    background: var(--bg);
  }
  .trust-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .trust-card {
    min-height: 52px;
    padding: 12px 14px;
    font-size: 0.82rem;
    background: var(--card);
    color: var(--text-primary);
    border: 0.5px solid var(--separator);
  }
  .trust-card__icon {
    color: var(--apple-blue);
  }

  /* 关于板块 */
  .about-grid {
    gap: 28px;
  }
  .about-visual {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .about-image-card--large {
    grid-column: auto;
  }
  .about-img,
  .about-image-card--large .about-img {
    height: 200px;
  }
  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-card {
    padding: 20px 14px;
  }
  .stat-number {
    font-size: 1.7rem;
  }

  /* 网格单列 */
  .product-grid,
  .application-grid,
  .reason-grid,
  .strength-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .product-visual img {
    height: 200px;
  }
  .product-content {
    padding: 20px;
  }

  .strength-showcase {
    padding: 24px;
    gap: 24px;
  }
  .strength-showcase__media img {
    height: 200px;
  }

  .manufacturing-flow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .process-step {
    max-width: none;
  }
  .process-step__img img {
    height: 120px;
  }

  /* 表格 */
  .specs-table th,
  .specs-table td {
    font-size: 0.78rem;
    padding: 10px 8px;
  }

  /* CTA */
  .cta-section {
    padding: 72px 0;
  }
  .cta-card .btn {
    width: 100%;
  }

  /* 浮动按钮 */
  .float-action {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
  .float-action__icon {
    width: 20px;
    height: 20px;
  }
  .float-actions {
    right: calc(16px + var(--safe-area-right));
    bottom: calc(16px + var(--safe-area-bottom));
    gap: 10px;
  }

  /* 底部 */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-col:first-child {
    grid-column: auto;
  }
}

/* 小屏手机 ≤480px */
@media (max-width: 480px) {
  :root {
    --header-height: 50px;
  }
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-header {
    height: calc(var(--header-height) + var(--safe-area-top));
  }
  .header-inner {
    height: var(--header-height);
  }
  .brand {
    gap: 8px;
    font-size: 1.05rem;
  }
  .brand-logo {
    width: 28px;
    height: 28px;
    border-radius: 5px;
  }
  .mobile-menu-toggle {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }
  .mobile-menu-panel {
    top: calc(var(--header-height) + var(--safe-area-top));
    padding: 12px 16px;
  }

  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 1.5rem;
  }

  .hero-title {
    font-size: 1.8rem;
  }
  .hero-actions {
    grid-template-columns: 1fr;
  }
  .trust-cards {
    grid-template-columns: 1fr;
  }

  .about-img,
  .about-image-card--large .about-img {
    height: 180px;
  }
  .product-visual img {
    height: 180px;
  }

  .specs-table th,
  .specs-table td {
    font-size: 0.7rem;
    padding: 8px 6px;
  }

  .footer-bottom {
    line-height: 1.8;
  }
  .footer-divider {
    display: none;
  }
  .footer-bottom a {
    display: block;
    margin-top: 4px;
  }
}

/* 减少动画模式 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* 桌面端 Hero 细节 */
@media (min-width: 769px) {
  .hero {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 100vh;
    min-height: 100svh;
    overflow: hidden;
    background: #000;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
  }
  .hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
  }
  .hero-bottom {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 0 0 120px;
    background: transparent;
  }
  .hero-bottom .container {
    max-width: 780px;
    text-align: center;
  }
}

/* 毛玻璃降级 */
@supports not (backdrop-filter: blur(10px)) {
  .site-header,
  .trust-card,
  .float-action,
  .wechat-modal__card {
    background: var(--card);
  }
}

[class*="-card"] {
  overflow: hidden;
}