/* ============================================
   深圳山海启源科技有限公司 - 公共样式
   深色科技风格 · 玻璃态 · 渐变蓝系
   ============================================ */

/* ---------- 设计令牌 (Design Tokens) ---------- */
:root {
  /* 主色板 - 统一科技蓝系 */
  --primary: #1677ff;
  --primary-dark: #0958d9;
  --primary-light: #4096ff;
  --primary-50: rgba(22, 119, 255, 0.05);
  --primary-100: rgba(22, 119, 255, 0.1);
  --primary-200: rgba(22, 119, 255, 0.2);

  /* 辅助色 */
  --accent: #13c2c2;
  --accent-glow: rgba(19, 194, 194, 0.4);

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #1677ff 0%, #0958d9 50%, #13c2c2 100%);
  --gradient-hero: linear-gradient(180deg, #2e4a73 0%, #3a5a8a 50%, #2e4a73 100%);
  --gradient-card: linear-gradient(135deg, rgba(22, 119, 255, 0.08) 0%, rgba(19, 194, 194, 0.05) 100%);
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(22, 119, 255, 0.15) 0%, transparent 60%);

  /* 背景色 */
  --bg-deep: #243a5c;
  --bg-primary: #2e4a73;
  --bg-secondary: #3a5a8a;
  --bg-tertiary: #4a6a9e;
  --bg-card: rgba(74, 106, 158, 0.45);

  /* 文字色 */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.85);
  --text-tertiary: rgba(255, 255, 255, 0.65);
  --text-quaternary: rgba(255, 255, 255, 0.45);

  /* 边框 */
  --border-primary: rgba(255, 255, 255, 0.15);
  --border-weak: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(22, 119, 255, 0.4);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* 阴影 - 玻璃态发光 */
  --shadow-glow-sm: 0 0 10px rgba(22, 119, 255, 0.2);
  --shadow-glow-md: 0 0 20px rgba(22, 119, 255, 0.3);
  --shadow-glow-lg: 0 0 40px rgba(22, 119, 255, 0.25);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-float: 0 12px 48px rgba(0, 0, 0, 0.5);

  /* 玻璃态 */
  --glass-bg: rgba(74, 106, 158, 0.32);
  --glass-border: 1px solid rgba(255, 255, 255, 0.22);
  --glass-blur: blur(15px);

  /* 间距 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;

  /* 动画 */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 0.15s;
  --duration-base: 0.3s;
  --duration-slow: 0.5s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }

/* ---------- 背景纹理与光影 ---------- */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -10;
  background: var(--gradient-hero);
  pointer-events: none;
}

.page-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(22, 119, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(19, 194, 194, 0.1) 0%, transparent 60%),
    var(--gradient-glow);
}

.page-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'%3E%3Cdefs%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3'/%3E%3C/filter%3E%3C/defs%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* 科技感流线纹理 */
.tech-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -5;
  opacity: 0.04;
  pointer-events: none;
}

.tech-lines svg {
  width: 100%;
  height: 100%;
}

/* ---------- 通用容器 ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-lg); }
}

.section {
  padding: var(--space-md) 0;
  position: relative;
}

@media (min-width: 768px) {
  .section { padding: var(--space-xl) 0; }
}

/* ---------- 按钮体系 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-smooth);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 6px 20px rgba(22, 119, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(22, 119, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1.5px solid var(--border-accent);
  position: relative;
  overflow: hidden;
}

.btn-outline::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-50);
  opacity: 0;
  transition: opacity var(--duration-base);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-sm);
}

.btn-outline:hover::before { opacity: 1; }

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-weak);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.btn .icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ---------- 玻璃态卡片 ---------- */
.glass-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--duration-base) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--duration-base);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float), var(--shadow-glow-md);
  border-color: rgba(22, 119, 255, 0.3);
}

.glass-card:hover::before { opacity: 1; }

/* ---------- 标题样式 ---------- */
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, #ffffff 0%, #8ab4ff 50%, #13c2c2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .section-title { font-size: 44px; }
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-xl);
  max-width: 640px;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .section-subtitle { font-size: 17px; }
}

.section-head {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-head .section-subtitle {
  margin: var(--space-sm) auto 0;
}

/* 徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--primary-100);
  color: var(--primary-light);
  border: 1px solid var(--border-accent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.badge-accent {
  background: rgba(19, 194, 194, 0.12);
  color: #5cdbd3;
  border-color: rgba(19, 194, 194, 0.3);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all var(--duration-base) var(--ease-smooth);
}

.navbar.scrolled {
  padding: 10px 0;
  background: rgba(46, 74, 115, 0.85);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-weak);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo img.nav-logo-img {
  height: 50px;
  max-height: 50px;
  width: auto;
  object-fit: contain;
  display: block;
  border-radius: 50%;
  mix-blend-mode: multiply;
}

.nav-logo-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 22px;
  color: white;
  box-shadow: var(--shadow-glow-sm);
}

.nav-logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
  color: #ffffff;
  text-shadow: 0 1px 8px rgba(30, 50, 90, 0.5);
}

.nav-logo-text span {
  color: var(--primary-light);
}

/* 桌面导航 */
.nav-menu {
  display: none;
  align-items: center;
  gap: 4px;
}

@media (min-width: 1024px) {
  .nav-menu { display: flex; }
}

.nav-item {
  position: relative;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-smooth);
  cursor: pointer;
  white-space: nowrap;
}

.nav-item:hover,
.nav-item.active {
  color: var(--text-primary);
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.12) 0%, rgba(19, 194, 194, 0.08) 100%);
  border: 1px solid rgba(64, 150, 255, 0.2);
  box-shadow: 0 2px 12px rgba(22, 119, 255, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.nav-item .chevron {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 6px;
  transition: transform var(--duration-fast);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  opacity: 0.85;
  color: var(--primary-light);
}

.nav-item:hover .chevron,
.nav-item.is-hover .chevron {
  transform: rotate(180deg);
  color: var(--text-primary);
}

/* 二级下拉菜单 */
.dropdown {
  position: absolute;
  top: calc(100%);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 260px;
  padding: 8px;
  padding-top: 16px;
  background: rgba(58, 90, 138, 0.95);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float), var(--shadow-glow-md);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--duration-base) var(--ease-smooth);
}

.nav-item.is-hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-cat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast);
  position: relative;
}

.dropdown-cat:hover {
  background: var(--primary-100);
  color: var(--text-primary);
}

.dropdown-cat-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  color: var(--primary-light);
  transition: transform var(--duration-fast);
}

.dropdown-cat:hover .dropdown-cat-arrow {
  opacity: 1;
  color: var(--text-primary);
  transform: translateX(4px);
}

/* 三级产品子菜单 */
.dropdown-submenu {
  position: absolute;
  top: 0;
  left: calc(100%);
  min-width: 240px;
  padding: 8px;
  padding-left: 16px;
  background: rgba(58, 90, 138, 0.95);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-8px);
  transition: all var(--duration-base) var(--ease-smooth);
}

.dropdown-cat.is-hover .dropdown-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.dropdown-product {
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
  white-space: nowrap;
}

.dropdown-product:hover {
  background: var(--primary-100);
  color: var(--primary-light);
  transform: translateX(4px);
}

/* CTA按钮 */
.nav-cta {
  display: none;
}

@media (min-width: 1024px) {
  .nav-cta { display: inline-flex; }
}

/* 汉堡按钮 */
.hamburger {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-weak);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
}

.hamburger:hover {
  color: var(--text-primary);
  border-color: var(--border-primary);
  background: rgba(255, 255, 255, 0.06);
}

@media (min-width: 1024px) {
  .hamburger { display: none; }
}

.hamburger-lines {
  width: 18px;
  height: 14px;
  position: relative;
}

.hamburger-lines span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: all var(--duration-base);
}

.hamburger-lines span:nth-child(1) { top: 0; }
.hamburger-lines span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger-lines span:nth-child(3) { bottom: 0; }

.hamburger.open .hamburger-lines span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.hamburger.open .hamburger-lines span:nth-child(2) { opacity: 0; }
.hamburger.open .hamburger-lines span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* 移动端菜单面板 */
.mobile-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(85vw, 360px);
  background: rgba(46, 74, 115, 0.98);
  -webkit-backdrop-filter: blur(28px);
  backdrop-filter: blur(28px);
  border-left: 1px solid var(--border-weak);
  padding: 80px 20px 24px;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-smooth);
  overflow-y: auto;
  z-index: 99;
}

.mobile-panel.open { transform: translateX(0); }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-base);
  z-index: 98;
}

.mobile-overlay.open { opacity: 1; visibility: visible; }

.m-nav-item {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.m-nav-item:hover,
.m-nav-item.active {
  background: var(--primary-100);
  color: var(--text-primary);
}

.m-nav-arrow {
  transition: transform var(--duration-fast);
  font-size: 12px;
  opacity: 0.5;
}

.m-nav-item.open .m-nav-arrow {
  transform: rotate(90deg);
}

.m-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-base) var(--ease-smooth);
  padding: 0 8px;
}

.m-submenu.open { max-height: 1000px; }

.m-sub-cat {
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.m-sub-cat:hover { background: rgba(255,255,255,0.03); color: var(--text-primary); }

.m-sub-items {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-base) var(--ease-smooth);
}

.m-sub-items.open { max-height: 600px; }

.m-product-link {
  display: block;
  padding: 10px 14px 10px 32px;
  font-size: 13px;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}

.m-product-link:hover {
  background: var(--primary-50);
  color: var(--primary-light);
}

/* ---------- 标题文字发光效果 ---------- */
.text-glow {
  text-shadow:
    0 0 40px rgba(22, 119, 255, 0.5),
    0 0 80px rgba(22, 119, 255, 0.2);
}

/* ---------- 标签切换 ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: var(--space-lg);
  padding: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-weak);
  border-radius: var(--radius-full);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.tab {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-tertiary);
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-smooth);
  cursor: pointer;
  white-space: nowrap;
}

.tab:hover { color: var(--text-secondary); }

.tab.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(22, 119, 255, 0.4);
}

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-md);
}

@media (min-width: 1200px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
}

/* 仅两张卡片时居中展示 */
@media (min-width: 1200px) {
  .product-grid--duo {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
    margin: 0 auto;
  }
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  cursor: pointer;
}

.product-card-img {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(22,119,255,0.08), rgba(19,194,194,0.05));
  overflow: hidden;
  border-bottom: 1px solid var(--border-weak);
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: rgba(46, 74, 115, 0.5);
  transition: transform var(--duration-slow) var(--ease-smooth);
}

.product-card:hover .product-card-img img {
  transform: scale(1.04);
}

.product-card-img-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #3a5a8a 0%, #4a6a9e 100%);
}

.product-card-img-fallback svg {
  width: 40%;
  height: 40%;
  opacity: 0.3;
  color: var(--primary-light);
}

.product-card-body {
  padding: 14px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-tag {
  display: inline-block;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 600;
  color: var(--primary-light);
  background: var(--primary-50);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  margin-bottom: 6px;
  align-self: flex-start;
}

.product-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0;
  line-height: 1.3;
}

.product-card-desc {
  display: none;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  margin-top: auto;
}

.product-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.product-spec {
  font-size: 10px;
  padding: 2px 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-weak);
  border-radius: 4px;
  color: var(--text-quaternary);
}

.product-card-more {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--duration-fast);
}

.product-card:hover .product-card-more {
  color: var(--text-primary);
  gap: 8px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.breadcrumb a {
  color: var(--text-quaternary);
  transition: color var(--duration-fast);
}

.breadcrumb a:hover { color: var(--primary-light); }

.breadcrumb-sep {
  opacity: 0.3;
  font-size: 11px;
}

.breadcrumb-current {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---------- 页面进入动画 ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(22, 119, 255, 0.3); }
  50% { box-shadow: 0 0 40px rgba(22, 119, 255, 0.5); }
}

.animate-fade-up {
  animation: fadeUp 0.7s var(--ease-smooth) both;
}

.animate-fade-in {
  animation: fadeIn 0.6s var(--ease-smooth) both;
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulse-glow 3s ease-in-out infinite;
}

.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; }

/* ---------- 页脚 ---------- */
.footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--border-weak);
  background: rgba(36, 58, 92, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
  }
}

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand-company {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.footer-brand-text {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.8;
  margin-top: var(--space-sm);
  max-width: 340px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-link {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color var(--duration-fast);
  white-space: nowrap;
}

.footer-link:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-weak);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-quaternary);
}