/* ==============================================
   产品页专属样式 (hk-page)
   覆盖 style.css 全局样式，与首页形成差异
   ============================================== */

/* ── 全局：section 背景节奏 ── */
.pp-page section:not(.pp-hero) { background: #f7f7f9; }
.pp-page .sec-advantages,
.pp-page .sec-specs,
.pp-page .sec-content-seo { background: #fff; }
.pp-page .sec-network { background: #eef3fb; }
.pp-page .sec-reviews { background: #fff; }

/* ── section padding 缩小 ── */
.pp-page section:not(.pp-hero) { padding-top: 48px; padding-bottom: 48px; }

/* ── section-title：居中 + 蓝色 label ── */
.pp-page .section-title {
  text-align: center;
  margin-bottom: 36px;
}
.pp-page .section-title .label {
  display: block;
  color: #0071e3;
  font-size: 12px;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.pp-page .section-title h2 { font-size: 30px; }
.pp-page .section-title p  { font-size: 15px; color: #6e6e73; }

/* ── Hero：浅色高可读方案 ── */
.pp-hero {
  padding: 64px 0 56px;
  text-align: center;
  background: #fbfbfd;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.pp-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 50% 0%, rgba(0,113,227,0.08) 0%, transparent 70%),
    radial-gradient(circle at 15% 90%, rgba(0,113,227,0.04) 0%, transparent 50%);
  pointer-events: none;
}
.pp-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 30%, transparent 80%);
  pointer-events: none;
}
.pp-hero .container { position: relative; z-index: 1; }

/* ── Hero 暗色科技风变体 ── */
.pp-hero--dark {
  background: linear-gradient(160deg, #0a0e27 0%, #0f1b3d 40%, #102a5c 100%);
  border-bottom-color: transparent;
}
.pp-hero--dark::before {
  background:
    radial-gradient(circle 320px at 12% 85%, rgba(56,152,255,0.12) 0%, transparent 70%),
    radial-gradient(circle 260px at 88% 15%, rgba(56,152,255,0.08) 0%, transparent 60%),
    radial-gradient(circle 180px at 55% 60%, rgba(99,179,255,0.05) 0%, transparent 60%);
}
.pp-hero--dark::after {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 20%, transparent 75%);
}
.pp-hero--dark .pp-hero-badge {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  box-shadow: 0 0 20px rgba(56,152,255,0.1);
}
.pp-hero--dark h1 { color: #fff; }
.pp-hero--dark > .container > p,
.pp-hero--dark p { color: rgba(255,255,255,0.65); }
.pp-hero--dark .hero-stats {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.08);
}
.pp-hero--dark .hero-stat-num { color: #fff; }
.pp-hero--dark .hero-stat-label { color: rgba(255,255,255,0.5); }
.pp-hero--dark .hero-stat-divider { background: rgba(255,255,255,0.1); }

.pp-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid rgba(0,113,227,0.2);
  color: #0071e3;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 22px;
  text-transform: uppercase;
  box-shadow: 0 1px 3px rgba(0,113,227,0.06);
}

.pp-hero h1 {
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  color: #1d1d1f;
}
.pp-hero h1 em {
  color: #0071e3;
  font-style: normal;
}
.pp-hero > .container > p,
.pp-hero p {
  font-size: 17px;
  color: #515154;
  max-width: 600px;
  margin: 0 auto 26px;
  line-height: 1.6;
}
.pp-hero-features {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.pp-hero-features span {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  color: #515154;
  font-size: 12px;
  padding: 5px 13px;
  border-radius: 20px;
  letter-spacing: 0.01em;
}

/* hero-cta 间距收紧 */
.pp-hero .hero-cta { margin-bottom: 40px; }
.pp-hero .btn-hero-outline {
  color: #1d1d1f;
  border-color: rgba(0,0,0,0.2);
}
.pp-hero .btn-hero-outline:hover {
  background: rgba(0,0,0,0.04);
  color: #1d1d1f;
  border-color: rgba(0,0,0,0.3);
}

/* hero-stats 浅色卡片 */
.pp-hero .hero-stats {
  max-width: 720px;
  margin: 0 auto;
  padding: 22px 16px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 0;
}
.pp-hero .hero-stat { padding: 0 12px; }
.pp-hero .hero-stat-num {
  font-size: 26px;
  font-weight: 700;
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  background-clip: initial;
  color: #0071e3;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.pp-hero .hero-stat-label {
  font-size: 12px;
  color: #6e6e73;
  margin-top: 4px;
  letter-spacing: 0;
}
.pp-hero .hero-stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(0,0,0,0.08);
  flex-shrink: 0;
}

/* ── 价格套餐表格 ── */
.pp-plans-table {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,0.09);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.pp-plans-table table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
.pp-plans-table thead th {
  background: #f0f0f5;
  padding: 12px 18px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: #6e6e73;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.pp-plans-table tbody td {
  padding: 16px 18px;
  font-size: 14px;
  color: #1d1d1f;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  vertical-align: middle;
}
.pp-plans-table tbody td small {
  display: block;
  font-size: 11px;
  color: #86868b;
  margin-top: 2px;
  font-weight: 400;
}
.pp-plans-table tbody tr:last-child td { border-bottom: none; }
.pp-plans-table tbody tr:hover { background: #fafafa; }
.pp-plans-table .popular-row {
  background: #f0f6ff;
  border-left: 3px solid #0071e3;
}
.pp-plans-table .popular-row:hover { background: #e8f0fe; }
.price-cell {
  font-size: 20px;
  font-weight: 700;
  color: #0071e3;
  white-space: nowrap;
}
.price-cell span { font-size: 12px; font-weight: 400; color: #86868b; }
.badge-hot {
  display: inline-block;
  background: #0071e3;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: middle;
  letter-spacing: 0.02em;
}
.pp-plans-table .btn-primary {
  background: #0071e3 !important;
  color: #fff !important;
  border: none;
}
.pp-plans-table .btn-primary:hover {
  background: #0077ed !important;
  color: #fff !important;
}

/* ── 更多配置按钮（融入配置列表） ── */
.pp-more-config {
  text-align: center;
  margin-top: 14px;
}
.pp-more-config .btn-see-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #0071e3, #0058b0);
  border: none;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.25s ease;
  width: 100%;
  box-shadow: 0 2px 8px rgba(0,113,227,0.3);
}
.pp-more-config .btn-see-more:hover {
  background: linear-gradient(135deg, #0077ed, #0062c4);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,113,227,0.4);
}
.pp-more-config .btn-see-more:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0,113,227,0.3);
}
.pp-more-config .btn-see-more .see-more-arrow {
  font-size: 18px;
  transition: transform 0.25s ease;
}
.pp-more-config .btn-see-more:hover .see-more-arrow {
  transform: translateX(3px);
}
.pp-more-config .btn-see-more .see-more-desc {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  margin-top: 3px;
}

/* ── 优势板块：浅蓝渐变背景 ── */
.pp-page .sec-advantages {
  background: linear-gradient(160deg, #f0f6ff 0%, #e8f0fe 100%) !important;
  position: relative;
  overflow: hidden;
}
.pp-page .sec-advantages::before { display: none; }
.pp-page .sec-advantages .section-title h2 { color: #1d1d1f; }
.pp-page .sec-advantages .section-title .label { color: #0071e3; }
.pp-page .sec-advantages .section-title p { color: #6e6e73; }
.pp-page .adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}
.pp-page .adv-item {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: 18px;
  padding: 32px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}
.pp-page .adv-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0,113,227,0.02) 0%, rgba(96,200,255,0.02) 100%);
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}
.pp-page .adv-item:hover {
  border-color: rgba(0,113,227,0.12);
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,113,227,0.12), 0 4px 12px rgba(0,0,0,0.08);
}
.pp-page .adv-item:hover::before {
  opacity: 1;
}
.pp-page .adv-item .icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  font-size: 26px;
  border-radius: 16px;
  background: linear-gradient(135deg, #e8f0fe 0%, #d0e4ff 100%);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 18px;
  position: relative;
  z-index: 1;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0,113,227,0.1);
}
.pp-page .adv-item:hover .icon {
  transform: scale(1.1) rotate(5deg);
}
.pp-page .adv-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1d1d1f;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}
.pp-page .adv-item p {
  font-size: 13px;
  color: #6e6e73;
  line-height: 1.65;
  margin: 0;
  position: relative;
  z-index: 1;
}

/* ── 网络卡片：图标+渐变边框 ── */
.pp-page .sec-network .network-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.pp-page .sec-network .network-item {
  background: #fff;
  border: 1px solid rgba(0,113,227,0.12);
  border-radius: 12px;
  padding: 24px;
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.pp-page .sec-network .network-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0071e3, #60c8ff);
}
.pp-page .sec-network .network-item:hover {
  border-color: rgba(0,113,227,0.25);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,113,227,0.1);
}
.pp-page .sec-network .network-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: #1d1d1f;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.pp-page .sec-network .network-item p {
  font-size: 13px;
  color: #6e6e73;
  line-height: 1.6;
}

/* ── 应用场景：渐变色编号卡片 ── */
.pp-page .sec-scenarios { background: #f0f4ff !important; }
.pp-page .scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pp-page .scenario-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: 18px;
  padding: 32px 28px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.pp-page .scenario-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0071e3, #60c8ff);
  opacity: 0.6;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.pp-page .scenario-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,113,227,0.12), 0 4px 12px rgba(0,0,0,0.08);
  border-color: rgba(0,113,227,0.12);
}
.pp-page .scenario-card:hover::before {
  opacity: 1;
}
.pp-page .scenario-card .icon {
  font-size: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #e8f0fe 0%, #d0e4ff 100%);
  border-radius: 16px;
  margin: 0 auto 16px;
  line-height: 1;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0,113,227,0.1);
}
.pp-page .scenario-card:hover .icon {
  transform: scale(1.1) rotate(-5deg);
}
.pp-page .scenario-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: #1d1d1f;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.pp-page .scenario-card p {
  font-size: 13px;
  color: #6e6e73;
  line-height: 1.65;
}

/* ── 技术参数 ── */
.pp-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: rgba(0,0,0,0.07);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.07);
}
.pp-spec-item {
  background: #fff;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.pp-spec-label {
  font-size: 11px;
  color: #86868b;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pp-spec-value {
  font-size: 14px;
  color: #1d1d1f;
  font-weight: 500;
}

/* ── FAQ ── */
.sec-faq { background: #f7f7f9; }
.pp-faq-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.07);
}
.pp-faq-item {
  background: #fff;
  padding: 20px 24px;
  border-left: 3px solid transparent;
  transition: border-color 0.2s;
}
.pp-faq-item:hover { border-left-color: #0071e3; }
.pp-faq-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.pp-faq-item p {
  font-size: 13px;
  color: #6e6e73;
  line-height: 1.6;
}

/* ── 用户评价：深色背景 ── */
.pp-page .sec-reviews .reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.pp-page .sec-reviews .review-card {
  background: #f7f7f9;
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: 10px;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: 24px;
}
.pp-page .sec-reviews .review-card:hover {
  background: #f0f4ff;
  border-color: rgba(0,113,227,0.2);
  transform: translateY(-2px);
  box-shadow: none;
}
.pp-page .sec-reviews .review-card .stars { color: #f5a623; font-size: 13px; margin-bottom: 12px; }
.pp-page .sec-reviews .review-card p { color: #3d3d3f; font-size: 14px; line-height: 1.6; margin-bottom: 14px; }
.pp-page .sec-reviews .review-card .author { color: #6e6e73; font-size: 12px; }

/* ── 相关推荐：简化 region-card ── */
.sec-related { background: #f7f7f9; }
@media (min-width: 769px) {
  .pp-page .sec-related .regions-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 16px;
  }
  .pp-page .sec-related .region-card {
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 10px;
    box-shadow: none;
    padding: 24px;
  }
  .pp-page .sec-related .region-card:hover {
    border-color: rgba(0,113,227,0.3);
    box-shadow: 0 4px 16px rgba(0,113,227,0.08);
    transform: translateY(-2px);
  }
}

/* ── SEO 内容区 ── */
.sec-content-seo { background: #fff; }
.pp-seo-content {
}
.pp-seo-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d1d1f;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.pp-seo-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1d1d1f;
  margin: 28px 0 10px;
  padding-left: 12px;
  border-left: 3px solid #0071e3;
  line-height: 1.3;
}
.pp-seo-content p {
  font-size: 15px;
  color: #3d3d3f;
  line-height: 1.7;
  margin-bottom: 14px;
}
.pp-seo-content strong { color: #1d1d1f; font-weight: 600; }

/* ── 移动端套餐卡片（隐藏于桌面） ── */
.pp-plans-cards { display: none; }

.pp-plan-card {
  background: #fff;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,0.08);
  overflow: hidden;
  margin-bottom: 10px;
}
.pp-plan-card:last-child { margin-bottom: 0; }
.pp-plan-card--hot { border-color: rgba(0,113,227,0.35); border-top: 3px solid #0071e3; }

.pp-plan-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: #f7f7f9;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.pp-plan-card--hot .pp-plan-head { background: #f0f6ff; }
.pp-plan-head strong { display: block; font-size: 15px; font-weight: 700; color: #1d1d1f; }
.pp-plan-head small { display: block; font-size: 11px; color: #86868b; margin-top: 2px; }
.pp-plan-price { font-size: 22px; font-weight: 700; color: #0071e3; white-space: nowrap; }
.pp-plan-price span { font-size: 11px; font-weight: 400; color: #86868b; }

.pp-plan-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.pp-plan-specs > div {
  padding: 10px 16px;
  font-size: 13px;
  color: #1d1d1f;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.pp-plan-specs > div:nth-child(odd) { border-right: 1px solid rgba(0,0,0,0.04); }
.pp-plan-specs em {
  display: block;
  font-style: normal;
  font-size: 10px;
  color: #86868b;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.pp-plan-btn {
  display: block;
  margin: 12px 16px;
  text-align: center;
  padding: 10px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  background: #0071e3;
  color: #fff;
  transition: all 0.3s ease;
}
.pp-plan-btn:hover {
  background: #0077ed;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

/* ── FAQ 手风琴 ── */
.pp-faq-item { cursor: pointer; }
.pp-faq-item p {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin: 0;
  transition: max-height 0.3s ease, opacity 0.2s ease;
}
.pp-faq-item.active p { max-height: 300px; opacity: 1; }
.pp-faq-item h3::after {
  content: '+';
  float: right;
  font-weight: 300;
  font-size: 18px;
  color: #86868b;
  line-height: 1.3;
}
.pp-faq-item.active h3::after { content: '−'; }
.pp-faq-item.active { border-left-color: #0071e3; }

/* ==============================================
   关于我们页面
   ============================================== */

/* Hero — 柔和渐变背景 + 科技纹理，深色数字 */
.about-hero {
  padding: 80px 0 64px;
  background: linear-gradient(180deg, #eef4ff 0%, #f8faff 40%, #fff 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle 1px, #cbd5e1 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 10%, transparent 70%);
  pointer-events: none;
}
.about-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 400px at 20% 60%, rgba(37,99,235,0.06) 0%, transparent 70%),
    radial-gradient(circle 300px at 80% 20%, rgba(99,102,241,0.05) 0%, transparent 60%);
  pointer-events: none;
}
.about-hero .container { position: relative; z-index: 1; }
.about-hero h1 {
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #0f172a;
  margin-bottom: 14px;
}
.about-hero > .container > p {
  font-size: 18px;
  color: #64748b;
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.6;
}
.about-hero .hero-stats {
  max-width: 680px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03), 0 8px 32px rgba(37,99,235,0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.about-hero .hero-stat {
  padding: 28px 16px;
  text-align: center;
}
.about-hero .hero-stat-num {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: #2563eb;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.about-hero .hero-stat-label {
  display: block;
  font-size: 13px;
  color: #94a3b8;
  margin-top: 6px;
  font-weight: 500;
}
.about-hero .hero-stat-divider { display: none; }

/* Section 通用 */
.about-section {
  padding: 80px 0;
}
.about-section--gray {
  background: #f8fafc;
}
.about-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: #0f172a;
  text-align: center;
  margin-bottom: 12px;
}
.about-section > .container > p {
  font-size: 15px;
  color: #94a3b8;
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: 0.01em;
}

/* 公司简介文字 */
.about-text {
  max-width: 720px;
  margin: 0 auto;
}
.about-text p {
  font-size: 16px;
  line-height: 1.85;
  color: #475569;
  margin-bottom: 20px;
}
.about-text p:last-child { margin-bottom: 0; }

/* 优势网格 */
.about-section .adv-grid {
  max-width: 1080px;
  margin: 0 auto;
}
.about-section .adv-item {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid #e2e8f0;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.about-section .adv-item:hover {
  box-shadow: 0 8px 30px rgba(37,99,235,0.08);
  transform: translateY(-2px);
  border-color: #bfdbfe;
}
.about-section .adv-item .icon {
  width: 48px;
  height: 48px;
  font-size: 24px;
  border-radius: 12px;
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.about-section .adv-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}
.about-section .adv-item p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* 发展历程时间线 */
.timeline {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  padding-left: 44px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #2563eb, #93c5fd);
}
.timeline-item {
  position: relative;
  margin-bottom: 24px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 20px;
  width: 10px;
  height: 10px;
  background: #2563eb;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #2563eb;
}
.timeline-card {
  background: #fff;
  border-radius: 14px;
  padding: 24px 28px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.timeline-year {
  font-size: 13px;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.timeline-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}
.timeline-card p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* 服务承诺 */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}
.promise-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.promise-card:hover {
  box-shadow: 0 4px 20px rgba(37,99,235,0.08);
  border-color: #bfdbfe;
}
.promise-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 10px;
}
.promise-card p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.65;
  margin: 0;
}

/* CTA */
.about-cta {
  text-align: center;
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
  border-radius: 20px;
  padding: 56px 40px;
  margin-top: 16px;
}
.about-cta h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.about-cta p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
}
.about-cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
}
.about-cta .btn-primary {
  background: #fff;
  color: #2563eb;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all 0.25s ease;
}
.about-cta .btn-primary:hover {
  background: #f0f4ff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.about-cta .btn-outline {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  transition: all 0.25s ease;
}
.about-cta .btn-outline:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.5);
}

/* ── 响应式 ≤768px ── */
@media (max-width: 768px) {
  /* Hero 移动端：紧凑，stats 改为 2×2 网格 */
  .pp-hero { padding: 36px 0 32px; }
  .pp-hero-badge { margin-bottom: 14px; font-size: 10px; padding: 5px 12px; }
  .pp-hero h1 { font-size: 24px; margin-bottom: 10px; line-height: 1.2; }
  .pp-hero p { font-size: 13px; margin-bottom: 20px; }
  .pp-hero-features { display: none; }
  .pp-hero .hero-cta { margin-bottom: 20px; gap: 8px; }
  .pp-hero .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    overflow: visible;
    max-width: 100%;
  }
  .pp-hero .hero-stat {
    padding: 10px 12px;
    text-align: center;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.4);
    box-shadow:
      0 4px 16px rgba(0,0,0,0.08),
      0 2px 8px rgba(0,0,0,0.04),
      inset 0 1px 0 rgba(255,255,255,0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
  }
  .pp-hero .hero-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    opacity: 0.6;
  }
  .pp-hero .hero-stat:active {
    background: rgba(255,255,255,0.95);
    transform: translateY(1px) scale(0.98);
    box-shadow:
      0 2px 8px rgba(0,0,0,0.1),
      0 1px 4px rgba(0,0,0,0.06),
      inset 0 1px 0 rgba(255,255,255,0.9);
  }
  .pp-hero .hero-stat-num {
    font-size: 10px !important;
    line-height: 1;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip;
    max-width: 100%;
    width: auto;
    padding: 0;
    font-weight: 700;
    color: #0071e3;
    letter-spacing: -0.08em;
    text-shadow: 0 1px 2px rgba(255,255,255,0.8);
  }
  .pp-hero .hero-stat-label {
    font-size: 7px !important;
    margin-top: 2px;
    color: #515154;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip;
    max-width: 100%;
    width: auto;
    padding: 0;
    font-weight: 600;
    letter-spacing: -0.02em;
    opacity: 0.9;
  }
  .pp-hero .hero-stat-divider { display: none; }
  /* Hero 暗色变体移动端 */
  .pp-hero--dark .pp-hero-badge {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
  }
  .pp-hero--dark h1 { color: #fff; }
  .pp-hero--dark > .container > p { color: rgba(255,255,255,0.6); }
  .pp-hero--dark .hero-stats {
    background: transparent;
    border: none;
    gap: 8px;
  }
  .pp-hero--dark .hero-stat {
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow:
      0 4px 16px rgba(0,0,0,0.4),
      0 2px 8px rgba(0,0,0,0.2),
      inset 0 1px 0 rgba(255,255,255,0.1);
  }
  .pp-hero--dark .hero-stat::before {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    opacity: 0.4;
  }
  .pp-hero--dark .hero-stat:active {
    background: rgba(0,0,0,0.5);
    box-shadow:
      0 2px 8px rgba(0,0,0,0.5),
      0 1px 4px rgba(0,0,0,0.3),
      inset 0 1px 0 rgba(255,255,255,0.15);
  }
  .pp-hero--dark .hero-stat-num {
    color: #4fc3f7;
    text-shadow: 0 2px 4px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.2), 0 0 12px rgba(79,195,247,0.3);
  }
  .pp-hero--dark .hero-stat-label {
    color: rgba(255,255,255,0.75);
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  }

  .pp-plans-table { display: none; }
  .pp-plans-cards { display: block; }

  /* 更多配置按钮 — 移动端卡片化适配 */
  .pp-more-config { margin-top: 10px; }
  .pp-more-config .btn-see-more {
    flex-wrap: wrap;
    justify-content: center;
    padding: 16px 20px;
    border-radius: 10px;
    font-size: 15px;
    gap: 4px 6px;
  }
  .pp-more-config .btn-see-more .see-more-desc {
    flex-basis: 100%;
    text-align: center;
    font-size: 12px;
    margin-top: 4px;
  }

  .pp-page section:not(.pp-hero) { padding-top: 36px; padding-bottom: 36px; }
  .pp-page .section-title { margin-bottom: 20px; }
  .pp-page .section-title h2 { font-size: 20px; }
  .pp-page .section-title p { font-size: 13px; }

  .pp-page .adv-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pp-page .adv-item { padding: 18px 14px; }
  .pp-page .adv-item .icon { width: 40px; height: 40px; font-size: 20px; border-radius: 10px; margin-bottom: 10px; }
  .pp-page .adv-item h4 { font-size: 13px; margin-bottom: 4px; }
  .pp-page .adv-item p { font-size: 12px; }

  .pp-page .sec-network .network-grid { grid-template-columns: 1fr; }
  .pp-page .sec-network .network-item { padding: 16px; }

  /* 应用场景移动端：2列，图标内联左对齐 */
  .pp-page .scenarios-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pp-page .scenario-card { padding: 16px 14px; }
  .pp-page .scenario-card .icon {
    width: 36px; height: 36px; font-size: 18px;
    border-radius: 8px; margin-bottom: 10px;
  }
  .pp-page .scenario-card h4 { font-size: 13px; margin-bottom: 4px; }
  .pp-page .scenario-card p { font-size: 12px; line-height: 1.5; }

  .pp-specs-grid { grid-template-columns: 1fr 1fr; }
  .pp-spec-item { padding: 14px 16px; }

  .pp-faq-item { padding: 16px 18px; }
  .pp-faq-item h3 { font-size: 14px; }

  .pp-page .sec-reviews .reviews-grid { grid-template-columns: 1fr; gap: 10px; }

  /* 关于我们移动端 */
  .about-hero { padding: 40px 0 32px; }
  .about-hero h1 { font-size: 26px; margin-bottom: 10px; }
  .about-hero > .container > p { font-size: 15px; margin-bottom: 28px; }
  .about-hero .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    border-radius: 14px;
    border: none;
    background: rgba(255,255,255,0.5);
    box-shadow: 0 2px 12px rgba(37,99,235,0.06), 0 8px 32px rgba(0,0,0,0.03);
  }
  .about-hero .hero-stat-divider { display: contents; }
  .about-hero .hero-stat { padding: 18px 12px; }
  .about-hero .hero-stat-num { font-size: 24px; }
  .about-hero .hero-stat-label { font-size: 12px; }
  .about-section { padding: 48px 0; }
  .about-section h2 { font-size: 22px; margin-bottom: 8px; }
  .about-section > .container > p { font-size: 13px; margin-bottom: 32px; }
  .about-text p { font-size: 15px; }
  .about-section .adv-grid { grid-template-columns: 1fr; gap: 10px; }
  .about-section .adv-item { padding: 24px 20px; }
  .timeline { padding-left: 36px; }
  .timeline-card { padding: 20px; }
  .promise-grid { grid-template-columns: 1fr; gap: 12px; }
  .promise-card { padding: 24px; }
  .about-cta { padding: 36px 20px; border-radius: 16px; }
  .about-cta h2 { font-size: 22px; }
  .about-cta p { font-size: 14px; margin-bottom: 28px; }
  .about-cta-btns { flex-direction: column; align-items: center; gap: 10px; }
  .about-cta-btns .btn { width: 100%; max-width: 280px; }

  .pp-seo-content h2 { font-size: 20px; }
  .pp-seo-content h3 { font-size: 16px; }
  .pp-seo-content p { font-size: 14px; }

  /* 相关产品推荐移动端 - 横向循环滚动 */
  .pp-page .sec-related .regions-grid {
    display: flex !important;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 14px;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 32px;
    scroll-padding-right: 32px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 8px 32px 20px 32px;
    margin: 0 -20px;
    position: relative;
    overflow-anchor: none;
    grid-template-columns: unset !important;
  }
  .pp-page .sec-related .regions-grid::-webkit-scrollbar {
    display: none;
  }
  .pp-page .sec-related .regions-grid > * {
    flex: 0 0 calc(100vw - 88px);
    max-width: 300px;
    scroll-snap-align: center;
    scroll-snap-stop: always;
  }
  .pp-page .sec-related .regions-grid > *:first-child {
    margin-left: 0;
  }
  .pp-page .sec-related .regions-grid > *:last-child {
    margin-right: 0;
  }
}

/* ── 响应式 ≤480px ── */
@media (max-width: 480px) {
  .pp-more-config .btn-see-more {
    padding: 14px 16px;
    font-size: 14px;
  }
  .pp-more-config .btn-see-more .see-more-desc { font-size: 11px; }
  .pp-hero { padding: 28px 0 24px; }
  .pp-hero h1 { font-size: 20px; }
  .pp-hero .hero-stats {
    gap: 2px;
  }
  .pp-hero .hero-stat {
    padding: 8px 8px;
    min-height: 46px;
    border-radius: 12px;
    overflow: hidden;
  }
  .pp-hero .hero-stat-num {
    font-size: 9px !important;
    margin-bottom: 2px;
    padding: 0;
    letter-spacing: -0.1em;
  }
  .pp-hero .hero-stat-label {
    font-size: 6px !important;
    margin-top: 2px;
    padding: 0;
    letter-spacing: -0.03em;
  }
  .pp-hero--dark .hero-stats {
    gap: 2px;
  }
  .pp-page .adv-grid { grid-template-columns: 1fr 1fr; }
  .pp-page .scenarios-grid { grid-template-columns: 1fr 1fr; }
  .pp-specs-grid { grid-template-columns: 1fr; }
  .pp-faq-item { padding: 14px; }
}

/* ── Form Input Styles ── */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #0071e3;
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

/* ── Hero Stats for colored backgrounds ── */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

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

.hero-stat-num {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  display: block;
  margin-bottom: 8px;
}

.hero-stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.9);
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.3);
}

@media (max-width: 768px) {
  .hero-stats {
    gap: 20px;
  }

  .hero-stat-num {
    font-size: 24px;
  }

  .hero-stat-divider {
    display: none;
  }
}

/* ========================================
   Contact Page Hero Section
   ======================================== */

.contact-hero {
  position: relative;
  padding: 120px 0 100px;
  background:
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 85% 80%, rgba(168, 85, 247, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
    linear-gradient(135deg, #0a0e1a 0%, #1a1f35 50%, #2a3050 100%);
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* ── Office Locations ── */

.office-locations {
  padding: 80px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.office-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.office-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.office-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.office-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  border-color: rgba(59,130,246,0.2);
}

.office-card:hover::before {
  transform: scaleX(1);
}

.office-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.office-flag {
  font-size: 36px;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.1));
}

.office-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: linear-gradient(135deg, #dbeafe 0%, #e0e7ff 100%);
  color: #3b82f6;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 16px;
  border: 1px solid rgba(59,130,246,0.2);
}

.office-badge-us {
  background: linear-gradient(135deg, #fce7f3 0%, #ede9fe 100%);
  color: #8b5cf6;
  border-color: rgba(139,92,246,0.2);
}

.office-title {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.office-subtitle {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 24px;
  font-weight: 500;
}

.office-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 24px;
}

.office-detail-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.office-detail-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f0f9ff 0%, #f5f3ff 100%);
  border-radius: 10px;
  color: #3b82f6;
  border: 1px solid rgba(59,130,246,0.1);
}

.office-detail-icon svg {
  width: 18px;
  height: 18px;
}

.office-detail-content {
  flex: 1;
}

.office-detail-label {
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.office-detail-value {
  font-size: 14px;
  color: #0f172a;
  line-height: 1.5;
  font-weight: 500;
}

.office-card-footer {
  padding-top: 20px;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.office-map-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  color: #3b82f6;
  font-size: 13px;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(59,130,246,0.15);
  transition: all 0.3s ease;
}

.office-map-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.office-map-link:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  border-color: #3b82f6;
  transform: translateX(4px);
}

.office-map-link:hover svg {
  transform: scale(1.1);
}

/* 响应式 */
@media (max-width: 768px) {
  .office-grid {
    grid-template-columns: 1fr;
  }

  .office-card {
    padding: 24px 20px;
  }

  .office-flag {
    font-size: 32px;
  }

  .office-title {
    font-size: 20px;
  }
}

.hero-decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.8;
  animation: float 20s ease-in-out infinite;
}

.hero-shape-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.5) 0%, transparent 70%);
  top: -150px;
  left: -100px;
  animation-duration: 25s;
}

.hero-shape-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168,85,247,0.5) 0%, transparent 70%);
  bottom: -100px;
  right: -80px;
  animation-duration: 30s;
  animation-direction: reverse;
}

.hero-shape-3 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(59,130,246,0.4) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-duration: 35s;
}

.hero-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.5;
}

/* 网格线 */
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(99,102,241,0.15) 1px, transparent 1px),
    linear-gradient(0deg, rgba(99,102,241,0.15) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
}

/* 光束 */
.hero-beam {
  position: absolute;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(59,130,246,0.8) 50%,
    transparent 100%);
  opacity: 0.6;
  box-shadow: 0 0 20px rgba(59,130,246,0.6);
  animation: beamMove 8s ease-in-out infinite;
}

.hero-beam-1 {
  left: 20%;
  animation-delay: 0s;
}

.hero-beam-2 {
  left: 75%;
  animation-delay: 4s;
}

@keyframes beamMove {
  0%, 100% { transform: translateY(-50%); opacity: 0; }
  50% { transform: translateY(0); opacity: 0.4; }
}

/* 六边形 */
.hero-hexagons {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='52' viewBox='0 0 60 52' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l15 8.66v17.32L30 34.64 15 26V8.66L30 0z' fill='none' stroke='rgba(168,85,247,0.15)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 120px 104px;
  opacity: 0.2;
  animation: hexagonMove 30s linear infinite;
}

@keyframes hexagonMove {
  0% { background-position: 0 0; }
  100% { background-position: 120px 104px; }
}

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

.hero-particles span {
  position: absolute;
  width: 5px;
  height: 5px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  box-shadow: 0 0 15px rgba(255,255,255,1), 0 0 30px rgba(59,130,246,0.8);
  animation: particleFloat 15s ease-in-out infinite;
}

.hero-particles span:nth-child(1) {
  left: 10%;
  top: 20%;
  animation-delay: 0s;
  animation-duration: 12s;
}

.hero-particles span:nth-child(2) {
  left: 25%;
  top: 60%;
  animation-delay: 2s;
  animation-duration: 15s;
}

.hero-particles span:nth-child(3) {
  left: 40%;
  top: 30%;
  animation-delay: 4s;
  animation-duration: 18s;
}

.hero-particles span:nth-child(4) {
  left: 60%;
  top: 70%;
  animation-delay: 1s;
  animation-duration: 14s;
}

.hero-particles span:nth-child(5) {
  left: 75%;
  top: 40%;
  animation-delay: 3s;
  animation-duration: 16s;
}

.hero-particles span:nth-child(6) {
  left: 85%;
  top: 15%;
  animation-delay: 5s;
  animation-duration: 13s;
}

.hero-particles span:nth-child(7) {
  left: 50%;
  top: 80%;
  animation-delay: 2.5s;
  animation-duration: 17s;
}

.hero-particles span:nth-child(8) {
  left: 15%;
  top: 50%;
  animation-delay: 4.5s;
  animation-duration: 19s;
}

@keyframes particleFloat {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0;
  }
  10% { opacity: 0.6; }
  50% {
    transform: translate(50px, -80px) scale(1.5);
    opacity: 0.8;
  }
  90% { opacity: 0.3; }
}

/* 扫描线 */
.hero-scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(59,130,246,0.03) 50%,
    transparent 100%
  );
  background-size: 100% 4px;
  animation: scanlineMove 8s linear infinite;
  pointer-events: none;
}

@keyframes scanlineMove {
  0% { background-position: 0 0; }
  100% { background-position: 0 100%; }
}

/* 光圈 */
.hero-rings {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.ring {
  position: absolute;
  border: 2px solid rgba(59,130,246,0.3);
  border-radius: 50%;
  animation: ringExpand 8s ease-out infinite;
}

.ring-1 {
  width: 200px;
  height: 200px;
  top: 20%;
  left: 15%;
  animation-delay: 0s;
}

.ring-2 {
  width: 300px;
  height: 300px;
  top: 60%;
  right: 20%;
  animation-delay: 2.5s;
  border-color: rgba(168,85,247,0.3);
}

.ring-3 {
  width: 250px;
  height: 250px;
  bottom: 15%;
  left: 50%;
  animation-delay: 5s;
  border-color: rgba(99,102,241,0.3);
}

@keyframes ringExpand {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* 电路线 */
.hero-circuits {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, transparent 0%, transparent 48%, rgba(59,130,246,0.2) 49%, rgba(59,130,246,0.2) 51%, transparent 52%, transparent 100%),
    linear-gradient(0deg, transparent 0%, transparent 48%, rgba(168,85,247,0.2) 49%, rgba(168,85,247,0.2) 51%, transparent 52%, transparent 100%);
  background-size: 200px 200px;
  background-position: 0 0, 100px 100px;
  opacity: 0.3;
  animation: circuitMove 20s linear infinite;
}

@keyframes circuitMove {
  0% { background-position: 0 0, 100px 100px; }
  100% { background-position: 200px 200px, 300px 300px; }
}

/* 三角形装饰 */
.hero-triangles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.triangle {
  position: absolute;
  width: 0;
  height: 0;
  border-style: solid;
  opacity: 0.15;
  animation: triangleRotate 15s linear infinite;
}

.triangle-1 {
  border-width: 0 40px 70px 40px;
  border-color: transparent transparent rgba(59,130,246,0.4) transparent;
  top: 10%;
  right: 10%;
  animation-duration: 20s;
}

.triangle-2 {
  border-width: 60px 35px 0 35px;
  border-color: rgba(168,85,247,0.4) transparent transparent transparent;
  bottom: 20%;
  left: 8%;
  animation-duration: 25s;
  animation-direction: reverse;
}

.triangle-3 {
  border-width: 0 30px 50px 30px;
  border-color: transparent transparent rgba(99,102,241,0.4) transparent;
  top: 50%;
  left: 85%;
  animation-duration: 18s;
}

.triangle-4 {
  border-width: 45px 25px 0 25px;
  border-color: rgba(59,130,246,0.4) transparent transparent transparent;
  bottom: 35%;
  right: 15%;
  animation-duration: 22s;
  animation-direction: reverse;
}

@keyframes triangleRotate {
  0% { transform: rotate(0deg) translateY(0); }
  50% { transform: rotate(180deg) translateY(-20px); }
  100% { transform: rotate(360deg) translateY(0); }
}

/* 波纹 */
.hero-waves {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(59,130,246,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(168,85,247,0.08) 0%, transparent 50%);
  animation: wavesPulse 6s ease-in-out infinite;
}

@keyframes wavesPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

/* 代码流 */
.hero-code-stream {
  position: absolute;
  inset: 0;
  overflow: hidden;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: rgba(59,130,246,0.4);
  pointer-events: none;
}

.hero-code-stream span {
  position: absolute;
  white-space: nowrap;
  animation: codeFlow 10s linear infinite;
  opacity: 0;
}

.hero-code-stream span:nth-child(1) {
  left: 10%;
  animation-delay: 0s;
  animation-duration: 12s;
}

.hero-code-stream span:nth-child(2) {
  left: 30%;
  animation-delay: 2s;
  animation-duration: 15s;
}

.hero-code-stream span:nth-child(3) {
  left: 50%;
  animation-delay: 4s;
  animation-duration: 11s;
}

.hero-code-stream span:nth-child(4) {
  left: 70%;
  animation-delay: 1s;
  animation-duration: 14s;
}

.hero-code-stream span:nth-child(5) {
  left: 85%;
  animation-delay: 3s;
  animation-duration: 13s;
}

@keyframes codeFlow {
  0% {
    top: -10%;
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.4;
  }
  100% {
    top: 110%;
    opacity: 0;
  }
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.1); }
  50% { transform: translate(-20px, 20px) scale(0.9); }
  75% { transform: translate(20px, 30px) scale(1.05); }
}

.contact-hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.contact-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #3b82f6;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 28px;
  text-transform: uppercase;
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
  box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}

.contact-hero-badge svg {
  opacity: 0.9;
}

.contact-hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: #ffffff;
  text-shadow:
    0 0 40px rgba(59,130,246,0.8),
    0 0 80px rgba(99,102,241,0.6),
    0 0 120px rgba(168,85,247,0.4),
    0 4px 30px rgba(59,130,246,0.5),
    0 2px 10px rgba(0,0,0,0.3);
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.contact-hero-desc {
  font-size: 18px;
  color: rgba(255,255,255,1);
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.7;
  font-weight: 500;
  text-shadow:
    0 0 30px rgba(59,130,246,0.7),
    0 0 60px rgba(99,102,241,0.5),
    0 0 90px rgba(168,85,247,0.3),
    0 3px 20px rgba(59,130,246,0.4),
    0 2px 8px rgba(0,0,0,0.2);
  animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.contact-hero-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.8s backwards;
}

.contact-stat {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 20px 28px;
  border-radius: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.contact-stat:hover {
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.contact-stat-icon {
  font-size: 32px;
  line-height: 1;
}

.contact-stat-content {
  text-align: left;
}

.contact-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.2;
  margin-bottom: 4px;
}

.contact-stat-label {
  font-size: 13px;
  color: #64748b;
  line-height: 1;
}

.contact-hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 1s backwards;
}

.btn-contact-primary,
.btn-contact-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.btn-contact-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(59,130,246,0.4);
  border: none;
  font-weight: 600;
}

.btn-contact-primary:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(59,130,246,0.5);
  color: #ffffff;
  border-color: transparent;
}

.btn-contact-primary svg {
  transition: transform 0.3s ease;
}

.btn-contact-primary:hover svg {
  transform: translateX(4px);
}

.btn-contact-secondary {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: #0f172a;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  font-weight: 600;
}

.btn-contact-secondary:hover {
  background: rgba(255,255,255,1);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  color: #0f172a;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .contact-hero {
    padding: 80px 0 60px;
    min-height: 500px;
  }

  .contact-hero-title {
    font-size: 32px;
  }

  .contact-hero-desc {
    font-size: 16px;
    margin-bottom: 36px;
  }

  .contact-hero-stats {
    gap: 16px;
  }

  .contact-stat {
    padding: 16px 20px;
    gap: 12px;
  }

  .contact-stat-icon {
    font-size: 28px;
  }

  .contact-stat-value {
    font-size: 18px;
  }

  .contact-stat-label {
    font-size: 12px;
  }

  .contact-hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-contact-primary,
  .btn-contact-secondary {
    justify-content: center;
    width: 100%;
  }
}

/* ── Contact Page Enhancements ── */
details[open] summary span {
  transform: rotate(45deg);
}

details summary span {
  transition: transform 0.3s ease;
}

details:hover {
  background: #ebebed !important;
}

details[open] {
  background: #fff !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* Form grid responsive */
@media (max-width: 640px) {
  form > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

/* Icon gradient animations */
.adv-item .icon {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.adv-item:hover .icon {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}