:root {
  /* Apple 风格配色 - 更简洁的中性色调 */
  --bg: #ffffff;
  --bg-alt: #000000;
  --bg-soft: #f5f5f7;
  --bg-soft-2: #efeef0;
  --text: #1d1d1f;
  --text-soft: #86868b;
  --text-muted: #a1a1a6;
  --line: #d2d2d7;
  --line-strong: #bfbfbf;

  /* Apple Blue - 干净纯粹的蓝色 */
  --primary: #0071e3;
  --primary-hover: #0077ed;

  /* 深色主题 */
  --dark: #1d1d1f;
  --dark-hover: #2d2d2f;

  --white: #ffffff;
  --black: #000000;

  /* Apple 风格阴影 - 更微妙 */
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);

  /* Apple 圆角 - 更圆润 */
  --radius-sm: 980px;
  --radius-md: 20px;
  --radius-lg: 24px;
  --radius-xl: 30px;
  --radius-2xl: 36px;

  --container: 980px; /* Apple 标准宽度 */
  --container-xl: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  /* Apple 系统字体 - SF Pro 优先 */
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5; /* Apple 行高更紧凑 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
.hidden { display: none !important; }
.mt-12 { margin-top: 12px; }

.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }

/* topbar removed: legacy header text is no longer displayed */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
}
.logo img {
  height: 28px;
  width: auto;
  object-fit: contain;
}
@media (max-width: 768px) {
  .logo img { height: 28px; }
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
}
/* Prevent nav items from shrinking or wrapping on narrow content; keep each item on its own inline-block width */
.desktop-nav > * {
  flex: 0 0 auto;
}
@media (max-width: 900px) {
  .desktop-nav {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  .desktop-nav .nav-link, .desktop-nav .nav-button {
    display: inline-block;
  }
}
.nav-link,
.nav-button {
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: #334155;
  padding: 0;
}
.nav-link:hover,
.nav-button:hover,
.nav-link.is-active {
  color: var(--primary);
}
.chevron { font-size: 12px; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-wrap {
  position: relative;
  width: 280px;
}

.search-input {
  width: 100%;
  height: 36px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--line);
  border-radius: 980px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
}
.search-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: 100;
}

.search-item {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 12px 16px;
  border-bottom: 1px solid var(--bg-soft);
  color: var(--text);
  font-size: 14px;
  transition: background 0.15s ease;
}

.search-item:last-child {
  border-bottom: 0;
}

.search-item:hover {
  background: var(--bg-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 18px;
  border-radius: 980px; /* 完全圆角 */
  border: none;
  font-size: 14px;
  font-weight: 400; /* Apple 更轻盈的字体粗细 */
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

/* Apple 蓝色实心按钮 */
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-hover);
}

/* Apple 风格文字链接按钮 - 无背景 */
.btn-link {
  background: transparent;
  color: var(--primary);
  padding: 0 12px;
  height: auto;
}
.btn-link:hover {
  text-decoration: underline;
}

/* 次按钮 - 浅灰背景 */
.btn-secondary {
  background: var(--bg-soft);
  color: var(--text);
}
.btn-secondary:hover {
  background: var(--bg-soft-2);
}

/* 轮廓按钮 */
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line-strong);
}
.btn-outline:hover {
  background: var(--bg-soft);
}

.btn-lg {
  height: 48px;
  padding: 0 24px;
  font-size: 15px;
}
.btn-full {
  width: 100%;
}

/* Apple 风格 CTA 链接 - 带箭头的蓝色文字 */
.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.2s ease;
}
.cta-link::after {
  content: "›";
  font-size: 18px;
  line-height: 1;
}
.cta-link:hover {
  text-decoration: underline;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  font-size: 24px;
  cursor: pointer;
}

.mobile-panel {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--white);
}
.mobile-panel.open { display: block; }
.mobile-inner { padding: 16px 0 20px; }
.mobile-link {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 14px 16px;
  border-radius: 14px;
  color: #334155;
}
.mobile-link:hover { background: #f8fafc; }
.mobile-group { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.mobile-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 14px 16px;
  color: #334155;
}
.mobile-submenu { border-top: 1px solid var(--line); padding: 6px; }
.mobile-submenu .mobile-link { font-size: 14px; color: var(--text-muted); }
.mobile-actions { display: grid; gap: 12px; margin-top: 14px; }

.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 40;
  width: 420px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: none;
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-head {
  padding: 16px 20px;
  background: rgba(248,250,252,0.8);
  border-bottom: 1px solid #f1f5f9;
}
.dropdown-head-title { font-size: 14px; font-weight: 700; }
.dropdown-head-text { margin-top: 4px; font-size: 12px; color: var(--text-muted); }
.dropdown-list { padding: 8px; }
.dropdown-item {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.dropdown-item:hover { background: #f8fafc; }
.dropdown-item-title { font-size: 14px; font-weight: 600; color: var(--text); }
.dropdown-item-sub { margin-top: 4px; font-size: 12px; color: var(--text-muted); }
.dropdown-arrow { color: #94a3b8; }

.page-hero {
  /* Apple 风格 - 简洁白色背景 */
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 80px 0 100px; /* Apple 更宽松的间距 */
}

/* Apple 风格标签 - 更简洁 */
.hero-chip {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 980px;
  background: var(--bg-soft);
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Apple 风格大标题 - 更紧凑更有力 */
.hero-title {
  margin: 20px 0 0;
  font-size: clamp(48px, 7vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Apple 风格副标题 */
.hero-subtitle {
  margin: 16px 0 0;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* Apple 风格正文 */
.hero-text {
  margin: 24px 0 0;
  max-width: 520px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text-soft);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-carousel {
  position: relative;
  min-height: 420px;
  height: 100%;
  overflow: hidden;
  border-radius: 48px;
  border: 1px solid var(--line);
  background: #e2e8f0;
  box-shadow: var(--shadow);
}
.hero-carousel-track {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 420px;
}
.hero-carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .6s ease, visibility .6s ease;
}
.hero-carousel-slide.active {
  opacity: 1;
  visibility: visible;
}
.hero-carousel-slide img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}
.hero-carousel-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 24px 28px;
  color: #fff;
  background: linear-gradient(to top, rgba(15,23,42,.84), rgba(15,23,42,.2), transparent);
}
.hero-carousel-eye {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #bae6fd;
}
.hero-carousel-title {
  margin-top: 12px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
}
.hero-carousel-text {
  margin-top: 12px;
  max-width: 620px;
  font-size: 14px;
  line-height: 1.9;
  color: #e2e8f0;
}
.hero-carousel-dots {
  position: absolute;
  right: 24px;
  bottom: 22px;
  z-index: 3;
  display: flex;
  gap: 8px;
}
.hero-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: rgba(255,255,255,.38);
  transition: .2s ease;
}
.hero-carousel-dot.active {
  width: 26px;
  background: #ffffff;
}

/* Apple 风格区域 - 更多留白 */
.section {
  padding: 100px 0; /* Apple 更宽松 */
}
.section-soft {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-dark {
  background-color: var(--dark);
  background-image:
    linear-gradient(rgba(29,29,31,.86), rgba(29,29,31,.86)),
    var(--team-bg-image, none);
  background-size: cover, cover;
  background-position: center, center;
  background-repeat: no-repeat, no-repeat;
  color: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-dark .section-title {
  color: var(--white);
}
.section-dark .section-desc {
  color: #86868b;
}

/* Apple 风格Eyebrow 标签 */
.section-eye {
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.section-dark .section-eye {
  color: #a1a1a6;
}

/* Apple 风格标题 */
.section-title {
  margin: 0 0 28px;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

/* Apple 风格描述 - 更紧凑 */
.section-desc {
  margin-top: 0;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-soft);
}
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.section-desc {
  margin-top: 18px;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-soft);
}

/* Apple 风格卡片 - 无边框直接放背景上 */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  /* 无边框，微妙阴影 */
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.card.no-hover:hover {
  transform: none;
  box-shadow: none;
}

/* 新闻卡片 - <a> 标签表现为块级卡片 */
.news-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

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

/* 案例卡片 - <a> 标签表现为块级卡片 */
.case-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

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

/* 新闻详情页 */
.news-label {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(0, 113, 227, 0.08);
  color: #0071e3;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.news-body {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.8;
  color: #1e293b;
  white-space: pre-wrap;
}

.news-body p {
  margin: 0 0 1.2em;
}

.news-body p:last-child {
  margin-bottom: 0;
}

.card-body {
  padding: 24px;
}

.card-title {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.card-text {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-soft);
}

.card-image {
  width: 100%;
  height: 224px;
  object-fit: cover;
}
.card-image-lg { height: 256px; object-fit: cover; width: 100%; }

.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }
.col-7 { grid-column: span 7; }
.col-5 { grid-column: span 5; }
.col-4 { grid-column: span 4; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.page-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.page-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.gallery-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.gallery-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.metric { background: #f8fafc; border-radius: 20px; padding: 20px; }
.metric-eye { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.18em; }
.metric-title { margin-top: 12px; font-size: 22px; font-weight: 700; }
.metric-text { margin-top: 8px; font-size: 14px; color: var(--text-soft); line-height: 1.8; }

.feature-split { display: grid; grid-template-columns: 0.95fr 1.05fr; min-height: 100%; height: 100%; }
.feature-side { padding: 32px; display: flex; flex-direction: column; justify-content: flex-start; min-height: 100%; }
.channel-main-card { display: flex; flex-direction: column; height: 100%; }
.channel-main-body { display: flex; flex-direction: column; flex: 1; padding: 32px; }
.channel-main-text { margin-top: 14px; font-size: 14px; line-height: 1.9; color: var(--text-soft); }
.channel-main-actions { margin-top: auto; display: flex; flex-wrap: wrap; gap: 12px; padding-top: 28px; }
.channel-main-subgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.channel-main-media {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}
.channel-main-media.has-divider {
  min-height: 360px;
  border-right: 1px solid var(--line);
}
.channel-main-media.short {
  height: 260px;
  border-bottom: 1px solid var(--line);
}
.channel-main-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.channel-main-media.is-fallback,
.service-mini-media.is-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
}
.channel-main-media.is-fallback::before,
.service-mini-media.is-fallback::before {
  content: "图片展示";
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.feature-links { display: grid; gap: 12px; margin-top: 24px; }
.feature-link {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: transparent;
  padding: 16px;
  border-radius: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.feature-link:hover {
  background: #f0f9ff;
  border-color: #7dd3fc;
}
.feature-link-title { font-weight: 700; }
.feature-link-desc { margin-top: 4px; font-size: 13px; color: var(--text-muted); }
.feature-link-icon { color: #94a3b8; }

.service-mini-card { display: flex; flex-direction: column; height: 100%; }
.service-mini-media {
  height: 220px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  border-bottom: 1px solid var(--line);
}
.service-mini-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.service-mini-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 28px;
}
.service-mini-text {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-soft);
  flex: 1;
}

.dark-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 20px; align-items: center; }
.dark-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; align-items: stretch; }
.dark-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 24px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  min-height: 172px;
  height: 100%;
}
.dark-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.4;
  min-height: 56px;
  display: flex;
  align-items: flex-start;
}
.dark-card p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: #cbd5e1;
  flex: 1;
}

.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.partner-item {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 18px;
  text-align: center;
  padding: 16px;
  min-height: 116px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.partner-logo-wrap { height: 40px; width: 100%; display: flex; align-items: center; justify-content: center; }
.partner-logo { max-height: 40px; max-width: 100%; width: auto; object-fit: contain; }
.partner-name { font-size: 13px; font-weight: 600; color: #334155; line-height: 1.4; }

.case-grid, .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-category, .news-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  font-weight: 600;
}
.news-link {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}

.contact-grid { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: 24px; }
.contact-list { margin-top: 24px; display: grid; gap: 18px; font-size: 14px; color: var(--text-soft); }
.contact-line { display: flex; gap: 12px; align-items: center; line-height: 1.4; }
.contact-line a:hover { color: var(--primary); }

/* Apple 风格联系图标 */
.contact-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-soft);
  vertical-align: middle;
  line-height: 1;
}

.qr-grid { margin-top: 28px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.qr-item {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px;
  min-width: 0;
}
.qr-item img {
  width: min(100%, 160px);
  aspect-ratio: 1 / 1;
  height: auto;
  margin: 0 auto;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--white);
  object-fit: cover;
}
.qr-title { margin-top: 16px; font-size: 14px; font-weight: 600; }
.qr-text { margin-top: 8px; font-size: 13px; line-height: 1.8; color: var(--text-muted); }

.form-grid { margin-top: 24px; display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.input,
.textarea {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--text);
  font-size: 14px;
  padding: 14px 16px;
}
.input:focus,
.textarea:focus { outline: none; border-color: #7dd3fc; }
.textarea { min-height: 150px; resize: vertical; }
.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.form-tip { font-size: 14px; color: var(--text-muted); }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
  background: #f8fafc;
  color: var(--text-soft);
}
.spec-table { margin-top: 28px; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 120px 1fr; border-bottom: 1px solid var(--line); }
.spec-row:last-child { border-bottom: 0; }
.spec-key { background: #f8fafc; padding: 12px 16px; font-size: 14px; color: var(--text-muted); }
.spec-value { padding: 12px 16px; font-size: 14px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 48px; }
.faq-item + .faq-item { margin-top: 18px; }
.faq-q { font-weight: 700; }
.faq-a { margin-top: 6px; color: var(--text-soft); }

.footer { background: var(--dark); color: #cbd5e1; border-top: 1px solid var(--line); }
.footer-main { padding: 40px 0; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; }
.footer-title { color: var(--white); font-size: 18px; font-weight: 700; }
.footer-text { margin-top: 12px; max-width: 640px; font-size: 14px; line-height: 1.9; color: #94a3b8; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.footer-col-title { font-size: 14px; font-weight: 600; color: var(--white); }
.footer-col-list { margin-top: 16px; display: grid; gap: 12px; font-size: 14px; color: #94a3b8; }
.footer-col-list a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); text-align: center; font-size: 13px; color: #64748b; padding: 18px 0; }

.admin-wrap { min-height: 100vh; background: #f8fafc; }
.admin-login {
  max-width: 420px;
  margin: 0 auto;
  padding: 80px 0;
}
.admin-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.flash {
  padding: 12px 14px;
  border-radius: 14px;
  margin-bottom: 14px;
  font-size: 14px;
}
.flash.error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.admin-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}
.admin-sidebar {
  background: var(--dark);
  color: #cbd5e1;
  padding: 28px 20px;
}
.admin-sidebar h1 {
  margin: 0 0 24px;
  font-size: 20px;
  color: #fff;
}
.admin-nav { display: flex; flex-direction: column; gap: 8px; }
.admin-nav button {
  text-align: left;
  background: transparent;
  color: #cbd5e1;
  border: 0;
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  font-size: 14px;
}
.admin-nav button.is-active,
.admin-nav button:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}
aside.admin-sidebar button.btn-outline {
  background: transparent;
  color: #cbd5e1;
  border: 1px solid rgba(255,255,255,.15);
}
aside.admin-sidebar button.btn-outline:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}

/* 分组导航样式 */
.nav-group {
  display: flex;
  flex-direction: column;
}
.nav-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 12px 14px;
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: none;
  background: transparent;
  cursor: pointer;
  width: 100%;
  border-radius: 10px;
  transition: background 0.12s, color 0.12s;
}
.nav-group-head:hover {
  background: rgba(0,0,0,0.04);
  color: #334155;
}
.nav-group-head span {
  flex: 1;
  text-align: left;
}
.nav-chevron {
  flex-shrink: 0;
  opacity: 0.5;
  transition: transform 0.2s;
}
.nav-group.is-open .nav-chevron {
  transform: rotate(180deg);
}
.nav-group-items {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 2px 0 6px 10px;
}
.nav-group.is-open .nav-group-items {
  display: flex;
}
.nav-group-items button {
  background: transparent;
  color: #fff;
  padding: 10px 14px;
  font-size: 13px;
  border-radius: 10px;
}
.nav-group-items button:hover {
  background: rgba(255,255,255,0.08);
}
.admin-main { padding: 28px; }
.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.admin-section {
  display: none;
}
.admin-section.is-active { display: block; }
.admin-grid {
  display: grid;
  gap: 16px;
}
.editor-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.editor-card h3 {
  margin: 0 0 16px;
  font-size: 18px;
}
.editor-fields {
  display: grid;
  gap: 12px;
}
.editor-field label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.editor-field input,
.editor-field textarea,
.editor-field select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #fff;
}
.editor-field textarea {
  min-height: 110px;
  resize: vertical;
}
.editor-inline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.editor-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}
/* 折叠面板列表样式（数组 section） */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
}
.panel-title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.panel-title-row h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}
.panel-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
  background: var(--bg-alt);
  padding: 2px 10px;
  border-radius: 20px;
}
.panel-list {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.panel-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 40px 0;
}
.panel-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-white);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.panel-item:hover {
  border-color: #c7d2fe;
  box-shadow: 0 1px 6px rgba(99, 102, 241, 0.08);
}
.panel-item-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
}
.panel-item-left {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}
.panel-item-index {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 28px;
  text-align: center;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.panel-item-label {
  flex: 1;
  font-size: 0.875rem;
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}
.panel-item-label strong {
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel-item-label span {
  color: var(--text-muted);
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel-item-right {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
  margin-left: auto;
}
.panel-item-body {
  display: none;
  border-top: 1px solid var(--line);
  padding: 20px 20px;
  background: #fafafa;
}
.panel-item-body.is-open {
  display: block;
}
.panel-item-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.btn-sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}
.btn-ghost {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: background 0.12s, color 0.12s;
}
.btn-ghost:hover {
  background: var(--bg-alt);
  color: var(--text-main);
}
.btn-danger {
  color: #ef4444;
}
.btn-danger:hover {
  background: #fef2f2;
  color: #dc2626;
}

/* 布尔字段：开关样式 */
.editor-field-boolean {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
}
.editor-field-boolean label {
  margin-bottom: 0;
  flex: 1;
  font-size: 12px;
}
.toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-track {
  width: 40px;
  height: 22px;
  border-radius: 11px;
  background: var(--line);
  position: relative;
  transition: background 0.2s;
  cursor: pointer;
}
.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  transition: transform 0.2s;
}
.toggle-input:checked + .toggle-track {
  background: #16a34a;
}
.toggle-input:checked + .toggle-track .toggle-thumb {
  transform: translateX(18px);
}
.toggle-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  min-width: 28px;
  flex-shrink: 0;
}

.array-items {
  display: grid;
  gap: 16px;
}
.item-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.image-preview {
  width: 100%;
  max-width: 220px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #f8fafc;
}
.image-preview img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  margin-top: 6px;
  margin-bottom: 8px;
}
.image-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-alt);
}
.image-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.image-thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: opacity 0.15s;
}
.image-thumb:hover .image-thumb-overlay {
  opacity: 1;
}
.images-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 20px 0;
  background: var(--bg-alt);
  border-radius: 12px;
  border: 1px dashed var(--line-strong);
}
.helper {
  font-size: 12px;
  color: var(--text-muted);
}
.success-note {
  color: #166534;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  padding: 12px 14px;
  border-radius: 14px;
}
.error-note {
  color: #991b1b;
  background: #fef2f2;
  border: 1px solid #fecaca;
  padding: 12px 14px;
  border-radius: 14px;
}

@media (max-width: 1200px) {
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .qr-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1024px) {
  .desktop-nav, .header-actions { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .hero-grid,
  .dark-grid,
  .contact-grid,
  .footer-main,
  .feature-split,
  .page-grid-3,
  .case-grid,
  .news-grid,
  .metrics-grid,
  .grid-3,
  .grid-4,
  .grid-2,
  .faq-grid,
  .admin-layout {
    grid-template-columns: 1fr;
  }
  .grid-12 { grid-template-columns: 1fr; }
  .col-7, .col-5, .col-4 { grid-column: auto; }
  .hero-grid { padding: 56px 0 72px; }
  .hero-carousel,
  .hero-carousel-track,
  .hero-carousel-slide img { min-height: 340px; }
  .hero-carousel-overlay { padding: 20px 22px; }
  .hero-carousel-title { font-size: 24px; }
  .feature-side { padding: 24px; }
  .channel-main-media.has-divider { min-height: 260px; border-right: 0; border-bottom: 1px solid var(--line); }
  .channel-main-body { padding: 24px; }
  .channel-main-subgrid { grid-template-columns: 1fr; }
  .dark-cards { grid-template-columns: 1fr 1fr; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .page-grid-2 { grid-template-columns: 1fr; }
  .gallery-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .admin-main { padding: 20px; }
}
@media (max-width: 768px) {
  .container { width: min(var(--container), calc(100% - 24px)); }
  .topbar-inner { min-height: auto; padding: 10px 0; flex-direction: column; align-items: flex-start; }
  .header-inner { min-height: 60px; }
  .logo img { height: 44px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 24px; }
  .section { padding: 56px 0; }
  .card-body { padding: 22px; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .gallery-grid-4, .gallery-grid-3 { grid-template-columns: 1fr; }
  .dark-cards { grid-template-columns: 1fr; }
  .dark-card { min-height: auto; }
  .dark-card h3 { min-height: auto; }
  .card-image, .card-image-lg { height: 220px; }
  .editor-inline { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .partner-grid { grid-template-columns: 1fr; }
  .btn, .btn-lg { width: 100%; }
  .hero-actions { flex-direction: column; }
  .form-actions { align-items: stretch; }
  .form-actions > div:last-child { width: 100%; display: grid; gap: 12px; }
  .form-actions .btn { width: 100%; }
}

/* 大屏幕优化 (1400px+) */
@media (min-width: 1400px) {
  :root {
    --container: 1200px;
    --container-xl: 1400px;
    --font-hero: 72px;
    --font-title-xl: 56px;
    --font-title-lg: 36px;
  }

  .container { width: min(var(--container), calc(100% - 64px)); }

  .section { padding: 120px 0; }
  .section-title { margin-bottom: 32px; }
  .section-desc { font-size: 20px; max-width: 680px; }

  .hero { padding: 80px 0; }
  .hero-title { font-size: var(--font-hero); }
  .hero-subtitle { font-size: 28px; }
  .hero-text { font-size: 20px; max-width: 600px; }
  .hero-grid { gap: 64px; }

  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-card { padding: 40px; }
  .feature-title { font-size: 28px; }

  .dark-cards { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(6, 1fr); }
  .metrics-grid { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: repeat(3, 1fr); }

  .card-image { height: 280px; }
  .card-image-lg { height: 400px; }

  .product-hero-media img { max-height: 560px; }
  .product-hero-grid { gap: 80px; }

  .service-hero-media img { max-height: 480px; }
}

/* 超大屏幕优化 (1920px+) */
@media (min-width: 1920px) {
  :root {
    --container: 1400px;
    --container-xl: 1600px;
  }

  .container { width: min(var(--container), calc(100% - 80px)); }

  .section { padding: 140px 0; }
  .hero { padding: 100px 0; }
  .hero-title { font-size: 80px; }
  .hero-subtitle { font-size: 32px; }

  .feature-grid { grid-template-columns: repeat(4, 1fr); }
  .dark-cards { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(8, 1fr); }
  .case-grid { grid-template-columns: repeat(4, 1fr); }
  .news-grid { grid-template-columns: repeat(4, 1fr); }
}
/* Ensure page hero has no gradient background (override legacy grad-bg) */
.page-hero { background: none !important; }

/* Unified large heading typography using CSS variables (Apple 风格更粗) */
:root {
  --font-hero: 64px;
  --font-title-xl: 48px;
  --font-title-lg: 30px;
}

.hero-title {
  font-weight: 700;
  font-size: var(--font-hero);
}
.section-title {
  font-weight: 700;
  font-size: var(--font-title-xl);
}
.card-title {
  font-weight: 600;
  font-size: var(--font-title-lg);
}

.hero-carousel-title {
  font-weight: 600;
  font-size: var(--font-title-lg);
}

/* Search input cosmetic adjustments to accommodate magnifier button */
.search-wrap {
  position: relative;
}

.search-input {
  padding-right: 14px;
  padding-left: 38px;
}

.search-btn {
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 28px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--text-soft);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn svg {
  width: 14px;
  height: 14px;
}

/* ========================================
   Apple 风格滚动动画
   ======================================== */

/* 基础动画类 - 淡入上滑 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 淡入效果 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 缩放淡入 */
@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 应用动画 */
.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 0;
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
  opacity: 0;
}

.animate-fade-in-scale {
  animation: fadeInScale 0.8s ease-out forwards;
  opacity: 0;
}

/* 延迟类 - 用于错开动画 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* 滚动触发动画 - JavaScript 添加 .visible 类后触发 */
.fade-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 放大效果 */
.scale-on-scroll {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scale-on-scroll.visible {
  opacity: 1;
  transform: scale(1);
}

/* Apple 风格悬浮效果 */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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


.form-note {
  min-height: 22px;
  font-size: 13px;
  color: var(--text-muted);
}
.form-note.is-info {
  color: #1d4ed8;
}
.form-note.is-success {
  color: #166534;
}
.form-note.is-error {
  color: #991b1b;
}


.gallery-link-card {
  display: block;
  color: inherit;
  text-decoration: none;
}
.gallery-link-card:hover {
  transform: translateY(-4px);
}
.card-link-text {
  margin-top: 14px;
  color: var(--primary);
  font-weight: 700;
}
.spec-table-large .spec-key,
.spec-table-large .spec-value {
  font-size: 16px;
}


.section-header {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
}
.section-header h3 {
  margin: 0;
}
.section-actions,
.array-tools {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.panel-list {
  display: grid;
  gap: 18px;
  margin-top: 16px;
}
.panel-item,
.nested-item {
  border: 1px solid rgba(2, 132, 199, 0.16);
  border-radius: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.72);
}
.panel-item-head,
.nested-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.panel-item-actions,
.image-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.mini-btn {
  border: 1px solid rgba(2, 132, 199, 0.26);
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
  cursor: pointer;
}
.mini-btn:hover {
  border-color: rgba(2, 132, 199, 0.55);
}
.mini-btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}
.mini-btn.danger {
  color: #991b1b;
  border-color: rgba(153, 27, 27, .25);
}
.wide-field {
  grid-column: 1 / -1;
}
.nested-editor {
  display: grid;
  gap: 14px;
  width: 100%;
}
.nested-list {
  display: grid;
  gap: 12px;
}
.nested-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.image-field-box {
  display: grid;
  gap: 10px;
}
.image-preview {
  width: 180px;
  max-width: 100%;
  height: 100px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(2, 132, 199, .14);
  background: #f8fafc;
}
.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
}
.switch-row input {
  width: 20px;
  height: 20px;
}
.save-status.is-success {
  color: #166534;
}
.save-status.is-error {
  color: #991b1b;
}
.save-status.is-info {
  color: var(--text-muted);
}
@media (max-width: 760px) {
  .section-header,
  .panel-item-head,
  .nested-item-head {
    align-items: stretch;
    flex-direction: column;
  }
  .nested-grid {
    grid-template-columns: 1fr;
  }
}

/* hotfix: show admin editor panels */
.admin-section {
  display: block !important;
}

/* hotfix: admin nav active style */
.admin-nav button.active,
.admin-nav button.is-active,
.admin-nav button:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}