/* ============================================================
   Metaverse Lab 全局自定义样式
   ============================================================ */

/* ---------- 全局渐变背景（使用 CSS 变量优雅适配深浅主题） ---------- */
body {
  background: var(--bg-gradient) fixed !important;
  background-attachment: fixed !important;
}

/* 深色模式渐变 */
body[data-md-color-scheme="slate"],
body:not([data-md-color-scheme="default"]) {
  --bg-gradient: linear-gradient(135deg, #0f0c29 0%, #1a1a4e 30%, #24243e 60%, #0f0c29 100%);
}

/* 浅色模式渐变 */
body[data-md-color-scheme="default"] {
  --bg-gradient: linear-gradient(135deg, #e8eaf6 0%, #c5cae9 30%, #e3f2fd 60%, #e8eaf6 100%);
}

/* ---------- 内容区域半透明卡片（使用 CSS 变量） ---------- */
.md-content {
  background: var(--md-content-bg) !important;
  border-radius: 16px;
  border: var(--md-content-border);
}

body[data-md-color-scheme="slate"] .md-content,
body:not([data-md-color-scheme="default"]) .md-content {
  --md-content-bg: rgba(255, 255, 255, 0.05);
  --md-content-border: 1px solid rgba(255, 255, 255, 0.08);
}

body[data-md-color-scheme="default"] .md-content {
  --md-content-bg: rgba(255, 255, 255, 0.5);
  --md-content-border: 1px solid rgba(0, 0, 0, 0.05);
}

/* ---------- 导航栏毛玻璃（安全使用 backdrop-filter） ---------- */
.md-header {
  background: var(--md-header-bg) !important;
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: var(--md-header-border);
}

body[data-md-color-scheme="slate"] .md-header,
body:not([data-md-color-scheme="default"]) .md-header {
  --md-header-bg: rgba(15, 12, 41, 0.6);
  --md-header-border: 1px solid rgba(255, 255, 255, 0.06);
}

body[data-md-color-scheme="default"] .md-header {
  --md-header-bg: rgba(255, 255, 255, 0.6);
  --md-header-border: 1px solid rgba(0, 0, 0, 0.06);
  color: rgba(0, 0, 0, 0.87) !important;
}

/* 浅色模式 header 内的图标和按钮颜色 */
body[data-md-color-scheme="default"] .md-header__button {
  color: rgba(0, 0, 0, 0.54) !important;
}

body[data-md-color-scheme="default"] .md-header__topic {
  color: rgba(0, 0, 0, 0.87) !important;
}

/* ---------- 导航标签栏毛玻璃 ---------- */
.md-tabs {
  background: var(--md-tabs-bg) !important;
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
  border-bottom: var(--md-tabs-border);
}

body[data-md-color-scheme="slate"] .md-tabs,
body:not([data-md-color-scheme="default"]) .md-tabs {
  --md-tabs-bg: rgba(15, 12, 41, 0.4);
  --md-tabs-border: 1px solid rgba(255, 255, 255, 0.04);
}

body[data-md-color-scheme="default"] .md-tabs {
  --md-tabs-bg: rgba(255, 255, 255, 0.4);
  --md-tabs-border: 1px solid rgba(0, 0, 0, 0.04);
  color: rgba(0, 0, 0, 0.87) !important;
}

body[data-md-color-scheme="default"] .md-tabs__link {
  color: rgba(0, 0, 0, 0.7) !important;
}

body[data-md-color-scheme="default"] .md-tabs__link--active {
  color: rgba(0, 0, 0, 0.87) !important;
}

/* ---------- 侧边栏半透明（仅桌面端） ---------- */
.md-sidebar {
  background: transparent !important;
}

@media screen and (min-width: 76.25em) {
  .md-sidebar .md-sidebar__scrollwrap {
    background: var(--md-sidebar-bg) !important;
    border-radius: 12px;
    border: var(--md-sidebar-border);
  }

  body[data-md-color-scheme="slate"] .md-sidebar .md-sidebar__scrollwrap,
  body:not([data-md-color-scheme="default"]) .md-sidebar .md-sidebar__scrollwrap {
    --md-sidebar-bg: rgba(255, 255, 255, 0.03);
    --md-sidebar-border: 1px solid rgba(255, 255, 255, 0.06);
  }

  body[data-md-color-scheme="default"] .md-sidebar .md-sidebar__scrollwrap {
    --md-sidebar-bg: rgba(255, 255, 255, 0.35);
    --md-sidebar-border: 1px solid rgba(0, 0, 0, 0.06);
  }
}

/* ---------- 产品卡片/场景卡片/高亮列表深浅适配 ---------- */
.product-card {
  background: var(--card-bg);
  border: var(--card-border);
}

body[data-md-color-scheme="slate"] .product-card,
body:not([data-md-color-scheme="default"]) .product-card {
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: 1px solid rgba(255, 255, 255, 0.1);
}

body[data-md-color-scheme="default"] .product-card {
  --card-bg: rgba(255, 255, 255, 0.5);
  --card-border: 1px solid rgba(0, 0, 0, 0.08);
}

.scenario-card {
  background: var(--scenario-bg);
  border: var(--scenario-border);
}

body[data-md-color-scheme="slate"] .scenario-card,
body:not([data-md-color-scheme="default"]) .scenario-card {
  --scenario-bg: rgba(255, 255, 255, 0.03);
  --scenario-border: 1px solid rgba(255, 255, 255, 0.06);
}

body[data-md-color-scheme="default"] .scenario-card {
  --scenario-bg: rgba(255, 255, 255, 0.35);
  --scenario-border: 1px solid rgba(0, 0, 0, 0.06);
}

/* highlights li 深浅色变量由下方主题块统一注入 */

/* ---------- footer 分割线深浅适配 ---------- */
.footer-copyright {
  border-top: var(--footer-border);
}

body[data-md-color-scheme="slate"] .footer-copyright,
body:not([data-md-color-scheme="default"]) .footer-copyright {
  --footer-border: 1px solid rgba(255, 255, 255, 0.06);
}

body[data-md-color-scheme="default"] .footer-copyright {
  --footer-border: 1px solid rgba(0, 0, 0, 0.06);
}

/* ---------- 隐藏首页自动生成的 h1 ---------- */
.md-content .md-typeset > h1:first-child {
  display: none;
}

/* ---------- Hero 区域 ---------- */
.hero-section {
  text-align: center;
  padding: 5rem 2rem 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%,
      rgba(70, 88, 255, 0.07) 0%,
      transparent 70%);
  pointer-events: none;
}

.hero-logo {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #4658FF 0%, #5C6CFF 50%, #8E99FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--md-default-fg-color--light);
  font-weight: 400;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.hero-tagline {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--lighter);
  letter-spacing: 0.18em;
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

/* ---------- Hero 赞助商 Logo ---------- */
.hero-sponsors {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.hero-sponsors .sponsor-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  max-width: 30%;
}

/* 中间分隔线 */
.hero-sponsors .sponsor-divider {
  width: 1px;
  height: 1.8em;
  background: currentColor;
  opacity: 0.15;
  flex-shrink: 0;
}

.hero-sponsors .sponsor-item a {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none !important;
}

.hero-sponsors .sponsor-logo {
  opacity: 0.65;
  transition: opacity 0.3s ease;
  width: 85%;
  height: auto;
  object-fit: contain;
}

/* 深色模式：logo 反白 */
body[data-md-color-scheme="slate"] .hero-sponsors .sponsor-logo,
body:not([data-md-color-scheme="default"]) .hero-sponsors .sponsor-logo {
  filter: brightness(0) invert(1);
}

/* 浅色模式：logo 保持原色 */
body[data-md-color-scheme="default"] .hero-sponsors .sponsor-logo {
  filter: none;
}

.hero-sponsors .sponsor-logo:hover {
  opacity: 1;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-actions .md-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

.hero-actions .md-button::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-actions .md-button--primary {
  background: linear-gradient(135deg, #4658FF, #5C6CFF);
  border: none;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(70, 88, 255, 0.3);
}

.hero-actions .md-button--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(70, 88, 255, 0.45);
}

.hero-actions .md-button--primary:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(70, 88, 255, 0.3);
}

.hero-actions .md-button:not(.md-button--primary) {
  border: 2px solid var(--md-typeset-table-color);
  color: var(--md-default-fg-color) !important;
  background: transparent;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.hero-actions .md-button:not(.md-button--primary):hover {
  border-color: #4658FF;
  color: #4658FF !important;
  background: rgba(70, 88, 255, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 4px 20px rgba(70, 88, 255, 0.12);
}

.hero-actions .md-button:not(.md-button--primary):active {
  transform: translateY(-1px);
}

.hero-actions .md-button .twemoji {
  transition: transform 0.3s ease;
}

.hero-actions .md-button:hover .twemoji {
  transform: translateX(4px);
}

/* ---------- 区块标题 ---------- */
.section-title {
  text-align: center;
  font-size: 1.65rem;
  font-weight: 600;
  margin: 3.5rem 0 2rem;
  position: relative;
  letter-spacing: -0.01em;
}

.section-title::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, #4658FF, #8E99FF);
  border-radius: 2px;
  margin: 0.65rem auto 0;
}

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}

.product-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 2rem 2rem 1.75rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.product-card.card-sceneforge::before {
  background: linear-gradient(90deg, #4658FF, #8E99FF);
}

.product-card.card-deepowl::before {
  background: linear-gradient(90deg, #6366F1, #A78BFA);
}

.product-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
}

.product-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.product-card p {
  color: var(--md-default-fg-color--light);
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0 0 1.25rem;
}

.product-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 500;
  font-size: 0.85rem;
  color: #4658FF !important;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.product-card .card-link:hover {
  gap: 0.55rem;
}

/* ---------- 亮点 Tab 区域 ---------- */
.highlights-section {
  max-width: 960px;
  margin: 0 auto;
}

.highlights-section .tabbed-set {
  border: none;
  box-shadow: none;
}

.highlights-section .tabbed-labels {
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
}

.highlights-section .tabbed-labels > label {
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.55rem 1.75rem;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s ease;
}

.highlights-section .tabbed-content {
  padding: 0;
}

/* 亮点列表样式 */
.highlights-section .tabbed-content ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
}

/* 亮点卡片 */
.highlights-section .tabbed-content ul li {
  display: block;
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  margin: 0;
  font-size: 0.82rem;
  color: var(--md-default-fg-color--light);
  line-height: 1.55;
  background: var(--highlight-bg);
  border: var(--highlight-border);
  transition: all 0.25s ease;
}

body[data-md-color-scheme="slate"] .highlights-section .tabbed-content ul li,
body:not([data-md-color-scheme="default"]) .highlights-section .tabbed-content ul li {
  --highlight-bg: rgba(255, 255, 255, 0.03);
  --highlight-border: 1px solid rgba(255, 255, 255, 0.06);
}

body[data-md-color-scheme="default"] .highlights-section .tabbed-content ul li {
  --highlight-bg: rgba(255, 255, 255, 0.35);
  --highlight-border: 1px solid rgba(0, 0, 0, 0.06);
}

.highlights-section .tabbed-content ul li::before {
  content: none;
}

.highlights-section .tabbed-content ul li:hover {
  border-color: var(--md-typeset-table-color);
  background: var(--md-default-bg-color);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.highlights-section .tabbed-content ul li .twemoji {
  display: inline-block;
  vertical-align: middle;
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.3rem;
  color: #4658FF;
  opacity: 0.85;
}

.highlights-section .tabbed-content ul li strong {
  display: inline;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--md-typeset-color);
}

/* 配图容器 */
.showcase-figure {
  text-align: center;
  margin: 0.5rem 0 1.25rem;
}

.md-typeset .showcase-figure {
  width: 100%;
  max-width: 100%;
}

.showcase-figure img {
  border-radius: 12px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.showcase-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
  opacity: 0.8;
}

/* Tab 内链接样式 */
.highlights-section .tabbed-content .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 500;
  font-size: 0.85rem;
  color: #4658FF !important;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.highlights-section .tabbed-content .card-link:hover {
  gap: 0.55rem;
}

/* ---------- 应用场景 ---------- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 960px;
  margin: 0 auto;
}

.scenario-card {
  text-align: center;
  padding: 1.75rem 1.25rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s ease;
}

.scenario-card:hover {
  background: var(--md-default-bg-color);
  border-color: var(--md-typeset-table-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.scenario-card .twemoji {
  width: 1.75rem;
  height: 1.75rem;
  margin-bottom: 0.6rem;
  opacity: 0.85;
}

.scenario-card strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.scenario-card p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--md-default-fg-color--light);
  line-height: 1.5;
}

/* ---------- Footer CTA ---------- */
.footer-cta {
  text-align: center;
  padding: 3.5rem 2rem 2rem;
  position: relative;
}

.footer-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 100%,
      rgba(70, 88, 255, 0.05) 0%,
      transparent 70%);
  pointer-events: none;
}

.footer-cta h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.footer-cta p {
  color: var(--md-default-fg-color--light);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.footer-cta .md-button {
  padding: 0.55rem 1.75rem;
  font-weight: 500;
  border-radius: 8px;
  font-size: 0.9rem;
  border: 1.5px solid var(--md-typeset-table-color);
  transition: all 0.25s ease;
}

.footer-cta .md-button:hover {
  border-color: #4658FF;
  color: #4658FF !important;
  background: rgba(70, 88, 255, 0.03);
}

.footer-copyright {
  text-align: center;
  padding: 1.25rem 2rem;
  font-size: 0.78rem;
  color: var(--md-default-fg-color--lighter);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  opacity: 0.7;
}

/* ---------- 下载按钮容器 ---------- */
.download-buttons {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 1.75rem;
}

/* ---------- 下载按钮样式 ---------- */
.download-buttons .md-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  border: 2px solid var(--md-typeset-table-color);
  color: var(--md-typeset-a-color) !important;
  background: transparent;
  transition: all 0.3s ease;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.download-buttons .md-button:hover {
  transform: translateY(-3px);
  border-color: #4658FF;
  color: #4658FF !important;
  background: rgba(70, 88, 255, 0.06);
  box-shadow: 0 4px 20px rgba(70, 88, 255, 0.15);
}

.download-buttons .md-button:active {
  transform: translateY(-1px);
}

.download-buttons .md-button--primary {
  background: linear-gradient(135deg, #4658FF, #5C6CFF);
  border: none;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(70, 88, 255, 0.3);
}

.download-buttons .md-button--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(70, 88, 255, 0.45);
}

/* ---------- 禁用按钮样式 ---------- */
.download-buttons .md-button--disabled,
.download-buttons .md-button--disabled.md-button--primary {
  cursor: not-allowed;
  opacity: 0.45;
  pointer-events: none;
  background: var(--md-default-fg-color--lighter);
  border-color: transparent;
  color: var(--md-default-bg-color) !important;
  box-shadow: none;
  transform: none !important;
}