/* ============================================================
 * RemoteDig 官方网站全量样式系统 (Modern Dark-Tech Design System)
 * 适配全端响应式、Bento 网格、毛玻璃拟态、交互式客户端视窗
 * ============================================================ */

:root {
  --bg-base: #06090e;
  --bg-deep: #0a0e17;
  --bg-card: #111723;
  --bg-card-hover: #172030;
  --bg-card-glass: rgba(17, 23, 35, 0.72);
  --bg-elevated: #1a2233;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(34, 191, 208, 0.35);

  --text-main: #f1f5f9;
  --text-sub: #94a3b8;
  --text-muted: #64748b;

    --brand: #2563eb;
  --brand-blue: #2563eb;
  --brand-hover: #3b82f6;
  --brand-glow: rgba(37, 99, 235, 0.35);

  --brand-cyan: #22bfd0;
  --accent-cyan: #22bfd0;
  --brand-hover: #3b82f6;
  --brand-glow: rgba(37, 99, 235, 0.35);

  --accent-cyan: #22bfd0;
  --accent-cyan-glow: rgba(34, 191, 208, 0.28);
  --accent-gold: #ffc131;
  --accent-gold-glow: rgba(255, 193, 49, 0.28);
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --shadow-card: 0 16px 36px rgba(0, 0, 0, 0.45), 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 40px rgba(34, 191, 208, 0.15), 0 0 80px rgba(37, 99, 235, 0.12);
}

/* ============================================================
 * 白昼明亮主题系统设计令牌 (Light Mode Design Tokens)
 * 高对比、柔和护眼、符合现代科技美学规范
 * ============================================================ */
[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-deep: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-card-glass: rgba(255, 255, 255, 0.88);
  --bg-elevated: #ffffff;

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-card: rgba(15, 23, 42, 0.1);
  --border-glow: rgba(37, 99, 235, 0.25);

  --text-main: #0f172a;
  --text-sub: #475569;
  --text-muted: #64748b;

  --brand: #2563eb;
  --brand-blue: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-glow: rgba(37, 99, 235, 0.2);

  --brand-cyan: #0891b2;
  --accent-cyan: #0891b2;
  --accent-cyan-glow: rgba(8, 145, 178, 0.2);
  --accent-gold: #d97706;
  --accent-gold-glow: rgba(217, 119, 6, 0.2);
  --accent-green: #059669;
  --accent-purple: #7c3aed;

  --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.08);
}


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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 页面主壳容器 */
.site-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

/* 背景环境极光氛围球 */
.bg-ambient-glow {
  position: fixed;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 191, 208, 0.13) 0%, rgba(37, 99, 235, 0.09) 45%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
 * 1. 顶部全局导航栏 (Sticky Glassmorphic Header)
 * ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 22px;
  margin-top: 14px;
  background: rgba(10, 14, 23, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.25s ease,
              background 0.25s ease,
              border-radius 0.25s ease,
              box-shadow 0.25s ease,
              margin-top 0.25s ease;
  will-change: transform, opacity;
}

/* 页面滚动中状态：贴顶消除顶部露字缝隙，微调圆角与柔和沉浸背景 */
.site-header.header-scrolled {
  margin-top: 0;
  border-radius: 0 0 20px 20px;
  border-top: none;
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 32px -5px rgba(0, 0, 0, 0.5), 0 0 20px rgba(34, 191, 208, 0.06);
}
[data-theme="light"] .site-header.header-scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(226, 232, 240, 0.9);
  box-shadow: 0 8px 24px -4px rgba(15, 23, 42, 0.06);
}

/* 向上滚动隐藏状态：丝滑滑出视窗，释放全屏阅读空间 */
.site-header.header-hidden {
  transform: translateY(-115%);
  opacity: 0;
  pointer-events: none;
  box-shadow: none;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}
.brand-link img {
  width: 32px;
  height: 32px;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(34, 191, 208, 0.3));
}
.brand-title {
  display: inline-flex;
  align-items: center;
}
.brand-title span {
  color: var(--accent-cyan);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav a {
  text-decoration: none;
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.site-nav a:hover,
.site-nav a.active {
  color: #ffffff;
}
.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: all 0.22s ease;
}
.btn-nav-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  border-color: rgba(255, 255, 255, 0.3);
}

/* 移动端汉堡折叠按钮 */
.menu-toggle-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-sub);
  cursor: pointer;
  padding: 6px;
}

/* ============================================================
 * 2. Hero 首屏视觉聚焦区 (Headline & CTAs)
 * ============================================================ */
.hero-section {
  position: relative;
  padding: 60px 0 36px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 1400px;
  height: 100%;
  background: radial-gradient(circle at 50% 25%, rgba(34, 191, 208, 0.09) 0%, rgba(37, 99, 235, 0.04) 45%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
[data-theme="light"] .hero-section::before {
  background: radial-gradient(circle at 50% 20%, rgba(2, 132, 199, 0.08) 0%, rgba(99, 102, 241, 0.04) 45%, transparent 70%);
}

/* 动态版本胶囊 */
.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  background: rgba(34, 191, 208, 0.09);
  border: 1px solid rgba(34, 191, 208, 0.3);
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(34, 191, 208, 0.15);
}
.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 0 0 rgba(34, 191, 208, 0.7);
  animation: pulseAnim 2s infinite;
}
@keyframes pulseAnim {
  0% { box-shadow: 0 0 0 0 rgba(34, 191, 208, 0.8); }
  70% { box-shadow: 0 0 0 6px rgba(34, 191, 208, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 191, 208, 0); }
}

.hero-title {
  font-size: clamp(32px, 4.4vw, 56px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.8px;
  color: #ffffff;
  max-width: 860px;
  margin: 0 auto 20px auto;
  text-wrap: balance;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #22bfd0 45%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
[data-theme="light"] .hero-title {
  color: #0f172a;
}
[data-theme="light"] .hero-title .gradient-text {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--text-sub);
  max-width: 680px;
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn-hero-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 26px rgba(37, 99, 235, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-hero-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(37, 99, 235, 0.6);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  transition: all 0.22s ease;
}
.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}
[data-theme="light"] .btn-hero-secondary {
  background: #ffffff;
  color: #1e293b;
  border-color: rgba(203, 213, 225, 0.9);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}
[data-theme="light"] .btn-hero-secondary:hover {
  background: #f8fafc;
  border-color: #94a3b8;
  color: #0f172a;
}

/* 核心特性标牌横条 (Proof Bar) */
.hero-proof-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 14px 28px;
  background: rgba(17, 23, 35, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-sub);
  flex-wrap: wrap;
}
.hero-proof-bar span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-proof-bar strong {
  color: var(--text-main);
}
.proof-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

/* ============================================================
 * 3. 交互式产品模拟器 (Interactive Product Mockup)
 * 允许用户在官网直接交互点击玩转 RemoteDig 4大核心模式
 * ============================================================ */
.showcase-wrapper {
  margin: 50px auto 80px auto;
  width: 100%;
  max-width: 1060px;
}

.showcase-tab-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.showcase-tab-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-sub);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.showcase-tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}
.showcase-tab-btn.active {
  background: rgba(34, 191, 208, 0.15);
  border-color: rgba(34, 191, 208, 0.45);
  color: #38bdf8;
  box-shadow: 0 0 14px rgba(34, 191, 208, 0.2);
}

/* 客户端拟真窗口框架 */
.client-window {
  background: #0f141f;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.client-window-topbar {
  height: 40px;
  background: #141b28;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  user-select: none;
}
.client-win-traffic-lights {
  display: flex;
  gap: 7px;
}
.win-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.client-win-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 7px;
}
.client-win-title img {
  width: 16px;
  height: 16px;
}

.client-win-capsules {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mini-update-capsule {
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.35);
  color: #60a5fa;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
}

/* 视窗内部主体内容容器 */
.client-window-content {
  min-height: 460px;
  position: relative;
  background: #0b0f17;
  overflow: hidden;
}

.mockup-panel {
  display: none;
  padding: 28px;
  height: 100%;
  animation: fadeInPanel 0.25s ease forwards;
}
.mockup-panel.active {
  display: block;
}
@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 模拟 1: 极速控制主控制台 */
.mock-hub-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
}
.mock-card {
  background: #131926;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mock-card-title {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 7px;
}
.mock-code-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #0a0d14;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px 14px;
}
.mock-big-code {
  font-size: 22px;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 2px;
  color: #38bdf8;
}

/* 复合输入直连框 */
.mock-input-compound {
  display: flex;
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  overflow: hidden;
  background: #0a0d14;
}
.mock-input-compound input {
  background: transparent;
  border: none;
  padding: 10px 12px;
  color: #ffffff;
  font-size: 13px;
  font-family: var(--font-mono);
  outline: none;
}
.mock-input-id { flex: 1.3; }
.mock-input-pwd { flex: 1; border-left: 1px solid var(--border-subtle) !important; }
.btn-mock-connect {
  background: var(--brand);
  color: #ffffff;
  border: none;
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-mock-connect:hover {
  background: var(--brand-hover);
}

/* 常用设备卡片网格 */
.mock-recent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mock-device-card {
  background: #0a0d14;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.15s;
}
.mock-device-card:hover {
  border-color: var(--accent-cyan);
  background: #111827;
}

/* 模拟 2: 4K 60FPS 极速画面 HUD */
.mock-session-view {
  position: relative;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 60% 40%, #1e293b 0%, #0f172a 100%);
  display: flex;
  flex-direction: column;
}
.mock-session-topbar {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.mock-session-canvas {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-hud-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(34, 191, 208, 0.4);
  border-radius: 8px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #38bdf8;
  display: flex;
  gap: 16px;
}

/* 模拟 3: 灵动桌面悬浮球与受控浮窗 */
.mock-floating-stage {
  position: relative;
  height: 400px;
  background: radial-gradient(circle at 30% 70%, #151d2d 0%, #0a0e17 100%);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  padding: 20px;
}
.mock-floating-ball {
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #1b212f;
  border: 2px solid rgba(34, 191, 208, 0.6);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 16px rgba(34, 191, 208, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  transition: transform 0.2s, box-shadow 0.2s;
}
.mock-floating-ball:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6), 0 0 24px rgba(34, 191, 208, 0.5);
}
.mock-ball-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: #ef4444;
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #0b0f17;
}

/* 展开态控制面板 Mock */
.mock-dock-panel {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 320px;
  background: #161d2b;
  border: 1px solid var(--border-card);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mock-dock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.btn-mock-shrink {
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(37, 99, 235, 0.4);
  color: #60a5fa;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
}

/* ============================================================
 * 4. 核心特性 Bento 网格 (Bento Features Grid)
 * ============================================================ */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px auto;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: #ffffff;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-sub);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 90px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.bento-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 191, 208, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(34, 191, 208, 0.1);
}
.bento-card-large {
  grid-column: span 2;
}

.bento-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(34, 191, 208, 0.12);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.bento-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}
.bento-card p {
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.6;
}

/* Bento 卡片内部微交互示意图 */
.bento-visual-wrapper {
  margin-top: 24px;
  background: #0b0f17;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
 * 5. 与传统远程工具对比表格 (Comparison Section)
 * ============================================================ */
.comparison-section {
  padding: 60px 0;
  margin-bottom: 80px;
}
.comparison-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.comparison-table th {
  background: #141b28;
  font-weight: 700;
  color: #ffffff;
}
.comparison-table th.col-highlight {
  background: rgba(34, 191, 208, 0.15);
  color: #38bdf8;
  border-left: 1px solid rgba(34, 191, 208, 0.3);
  border-right: 1px solid rgba(34, 191, 208, 0.3);
}
.comparison-table td.col-highlight {
  background: rgba(34, 191, 208, 0.04);
  border-left: 1px solid rgba(34, 191, 208, 0.2);
  border-right: 1px solid rgba(34, 191, 208, 0.2);
  font-weight: 600;
  color: #ffffff;
}
.check-green { color: #10b981; font-weight: bold; }
.cross-gray { color: #64748b; }

/* ============================================================
 * 6. 常见问题手风琴 (FAQ Accordion)
 * ============================================================ */
.faq-section {
  max-width: 860px;
  margin: 0 auto 90px auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}
.faq-question {
  width: 100%;
  padding: 18px 24px;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}
.faq-chevron {
  transition: transform 0.25s ease;
}
.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}
.faq-answer {
  padding: 0 24px 18px 24px;
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.6;
  display: none;
}
.faq-item.open .faq-answer {
  display: block;
}

/* ============================================================
 * 7. 终极下载行动横幅 (CTA Banner)
 * ============================================================ */
.cta-banner {
  background: radial-gradient(circle at 50% 0%, rgba(34, 191, 208, 0.2) 0%, rgba(17, 23, 35, 0.95) 75%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 50px rgba(34, 191, 208, 0.15);
  margin-bottom: 90px;
}
.cta-banner h2 {
  font-size: clamp(30px, 4.5vw, 44px);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}
.cta-banner p {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 600px;
  margin: 0 auto 30px auto;
}

/* ============================================================
 * 8. 页脚 (Site Footer)
 * ============================================================ */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 30px 0;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 10px;
  max-width: 280px;
}
.footer-columns {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.8px;
  margin-bottom: 14px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}
.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================================
 * 9. 下载中心专属样式 (Download Center - 仿参考图极简现代磁贴布局)
 * ============================================================ */
.download-page-shell {
  width: 100%;
  max-width: 1192px;
  margin: 34px auto 90px auto;
  padding: 0;
}

/* 导航栏手机端文字精简 */
.nav-text-mobile {
  display: none;
}
.nav-text-desktop {
  display: inline;
}

/* 顶部标题区 */
.download-hero-header {
  margin-bottom: 24px;
}
.download-hero-header h1 {
  font-size: 34px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.download-hero-header p.lead {
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

/* ================= 9.1 顶部移动端专属卡片 (Mobile Top Section) ================= */
.mobile-top-card {
  background: linear-gradient(135deg, rgba(16, 24, 40, 0.95) 0%, rgba(13, 18, 28, 0.95) 100%);
  border: 1px solid rgba(34, 191, 208, 0.35);
  box-shadow: 0 0 30px rgba(34, 191, 208, 0.08), var(--shadow-card);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
  overflow: hidden;
}
.mobile-top-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #10b981, var(--brand-cyan));
}
.mobile-info-col {
  max-width: 520px;
}
.mobile-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.mobile-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 11.5px;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.mobile-sub-hint {
  font-size: 12px;
  color: #34d399;
  font-weight: 600;
}
.mobile-info-col h3 {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}
.mobile-info-col p {
  font-size: 13.5px;
  color: #cbd5e1;
  line-height: 1.55;
  margin: 0;
}
.mobile-actions-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.btn-mobile-main {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  background-color: #10b981;
  background: linear-gradient(135deg, #059669 0%, #10b981 50%, #06b6d4 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.38), 0 0 12px rgba(6, 182, 212, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
  transition: all 0.2s ease;
}
.btn-mobile-main svg {
  color: #ffffff;
  fill: currentColor;
  flex-shrink: 0;
}
.btn-mobile-main:hover {
  transform: translateY(-2px);
  filter: brightness(1.12);
  box-shadow: 0 6px 24px rgba(16, 185, 129, 0.48), 0 0 16px rgba(6, 182, 212, 0.3);
  color: #ffffff !important;
}
.mobile-mirror-grid {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-mobile-sub {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #e2e8f0;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.18s ease;
}
.btn-mobile-sub:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.32);
  color: #ffffff;
}
.mobile-status-hint {
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ================= 9.2 系统要求卡片 (System Requirements) ================= */
.sys-req-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px 26px;
  margin-bottom: 24px;
}
.sys-req-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sys-req-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.sys-req-list li {
  font-size: 13.5px;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sys-req-list li::before {
  content: '•';
  color: var(--brand-cyan);
  font-size: 18px;
  line-height: 1;
}

/* ================= 9.3 最近版本卡片与平台磁贴 (Recent Versions & Tiles) ================= */
.version-release-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.version-release-card.latest {
  border-color: rgba(34, 191, 208, 0.45);
}
.version-release-card.latest::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-blue));
}
.version-card-header {
  margin-bottom: 20px;
}
.version-badges-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.badge-ver-cyan {
  background: #0284c7;
  color: #ffffff;
  font-size: 12.5px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
}
.badge-ver-amber {
  background: #ea580c;
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
}
.badge-ver-gray {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
}
.version-changelog-text {
  font-size: 13.5px;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

/* 平台磁贴网格 (Platform Tiles Grid - 3列) */
.platform-tiles-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.platform-tile-btn {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 22px 14px 18px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  position: relative;
}
.platform-tile-btn:hover {
  background: rgba(34, 191, 208, 0.07);
  border-color: rgba(34, 191, 208, 0.45);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 18px rgba(34, 191, 208, 0.12);
}
.tile-left-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.tile-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.platform-tile-btn .tile-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  transition: transform 0.2s ease;
}
.platform-tile-btn:hover .tile-icon {
  transform: scale(1.08);
}
.platform-tile-btn .tile-name {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}
.platform-tile-btn .tile-spec {
  font-size: 12px;
  color: #94a3b8;
  margin-bottom: 14px;
}
.platform-tile-btn .tile-arrow {
  color: var(--brand-cyan);
  font-size: 16px;
  line-height: 1;
  transition: transform 0.2s ease;
}
.platform-tile-btn:hover .tile-arrow {
  transform: translateY(3px);
}

/* 卡片底部备用源说明条 */
.version-card-bottom {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}
.bottom-hint-text {
  font-size: 12px;
  color: var(--text-muted);
}
.mirror-action-pills {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 更早历史版本引导 */
.older-releases-link-box {
  text-align: center;
  padding: 16px;
  margin-bottom: 40px;
  font-size: 13.5px;
  color: var(--text-muted);
}
.older-releases-link-box a {
  color: var(--brand-cyan);
  text-decoration: none;
  font-weight: 600;
  margin: 0 4px;
}
.older-releases-link-box a:hover {
  text-decoration: underline;
}

/* ================= 9.4 辅助浮层 (Download Assistant Toast) ================= */
.download-assistant-toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  max-width: 440px;
  width: calc(100vw - 40px);
  background: rgba(13, 18, 28, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(34, 191, 208, 0.45);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.75), 0 0 25px rgba(34, 191, 208, 0.18);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  z-index: 1000;
  transform: translateY(140%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  pointer-events: none;
}
.download-assistant-toast.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.assistant-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.assistant-title {
  font-size: 14.5px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.assistant-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 2px 6px;
  line-height: 1;
  transition: color 0.15s ease;
}
.assistant-close-btn:hover {
  color: #ffffff;
}
.assistant-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
  margin-bottom: 12px;
}
.assistant-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ================= 9.5 移动端与平板深度自适应优化 (Mobile Deep Optimization) ================= */
@media (max-width: 820px) {
  .platform-tiles-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .sys-req-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-text-desktop {
    display: none;
  }
  .nav-text-mobile {
    display: inline;
  }

  .download-page-shell {
    margin: 16px auto 50px auto;
    padding: 0 12px;
  }
  .download-hero-header {
    margin-bottom: 18px;
  }
  .download-hero-header h1 {
    font-size: 26px;
    line-height: 1.25;
  }
  .download-hero-header p.lead {
    font-size: 13.5px;
    line-height: 1.5;
  }

  /* 顶部移动端在手机端的超强紧凑优化 */
  .mobile-top-card {
    padding: 16px;
    border-radius: 14px;
    gap: 14px;
  }
  .mobile-info-col h3 {
    font-size: 16px;
    margin-bottom: 4px;
  }
  .mobile-info-col p {
    font-size: 12.5px;
    line-height: 1.5;
  }
  .mobile-actions-col {
    width: 100%;
  }
  .btn-mobile-main {
    width: 100%;
    justify-content: center;
    padding: 12px 14px;
    font-size: 13.5px;
  }
  .mobile-mirror-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 8px;
  }
  .btn-mobile-sub {
    justify-content: center;
    padding: 8px 10px;
    font-size: 11.5px;
    text-align: center;
  }
  .mobile-status-hint {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    font-size: 11.5px;
  }

  /* 系统要求卡片手机端 */
  .sys-req-box {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 18px;
  }
  .sys-req-title {
    font-size: 14px;
    margin-bottom: 8px;
  }
  .sys-req-list {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .sys-req-list li {
    font-size: 12.5px;
  }

  /* 版本卡片手机端 */
  .version-release-card {
    padding: 16px 14px;
    border-radius: 14px;
    margin-bottom: 18px;
  }
  .version-card-header {
    margin-bottom: 14px;
  }
  .version-changelog-text {
    font-size: 12.5px;
    line-height: 1.55;
    margin-bottom: 14px;
  }

  /* ★ 磁贴转横向清单（极致触控体验，告别大幅纵向滑屏） */
  .platform-tiles-container {
    grid-template-columns: 1fr;
    gap: 9px;
  }
  .platform-tile-btn {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    text-align: left;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.035);
  }
  .tile-left-wrapper {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
  }
  .platform-tile-btn .tile-icon {
    width: 34px;
    height: 34px;
    margin-bottom: 0;
    flex-shrink: 0;
  }
  .platform-tile-btn .tile-icon svg {
    width: 26px;
    height: 26px;
  }
  .tile-content {
    align-items: flex-start;
    min-width: 0;
  }
  .platform-tile-btn .tile-name {
    font-size: 14px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .platform-tile-btn .tile-spec {
    font-size: 11.5px;
    margin-bottom: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .platform-tile-btn .tile-arrow {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(34, 191, 208, 0.12);
    border: 1px solid rgba(34, 191, 208, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-left: 8px;
  }

  /* 卡片底部备用源手机端 */
  .version-card-bottom {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding-top: 12px;
    margin-top: 12px;
  }
  .bottom-hint-text {
    text-align: center;
    font-size: 11px;
  }
  .mirror-action-pills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    gap: 6px;
  }
  .mirror-action-pills a {
    justify-content: center;
    font-size: 11.5px;
    padding: 7px 8px;
  }

  /* 悬浮容灾助手浮层手机端居底通栏 */
  .download-assistant-toast {
    left: 10px;
    right: 10px;
    bottom: 12px;
    width: auto;
    max-width: none;
    border-radius: 12px;
    padding: 14px 16px;
  }
  .assistant-title {
    font-size: 13.5px;
  }
  .assistant-desc {
    font-size: 12px;
    margin-bottom: 10px;
  }
  .assistant-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .assistant-actions a {
    justify-content: center;
    padding: 8px 6px;
    font-size: 11.5px;
  }
}

/* ============================================================
 * 10. 隐私安全页专属样式 (Privacy Page Specifics)
 * ============================================================ */
.legal-container {
  max-width: 900px;
  margin: 50px auto 90px auto;
}
.legal-hero {
  text-align: center;
  margin-bottom: 45px;
}
.legal-hero h1 {
  font-size: 38px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}
.legal-hero p.lead {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 720px;
  margin: 0 auto 20px auto;
  line-height: 1.65;
}
.legal-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.legal-commit-highlight {
  background: linear-gradient(180deg, rgba(34, 191, 208, 0.08) 0%, rgba(13, 18, 28, 0.6) 100%);
  border: 1px solid rgba(34, 191, 208, 0.35);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-bottom: 36px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.legal-commit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.legal-commit-icon {
  font-size: 24px;
  color: var(--brand-cyan);
}
.legal-commit-item h4 {
  font-size: 15px;
  color: #ffffff;
  margin-bottom: 4px;
}
.legal-commit-item p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
}

.legal-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.legal-article {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color 0.2s ease;
}
.legal-article:hover {
  border-color: rgba(255, 255, 255, 0.2);
}
.legal-article-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.legal-article-num {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(34, 191, 208, 0.12);
  color: var(--brand-cyan);
  border: 1px solid rgba(34, 191, 208, 0.25);
}
.legal-article h3 {
  font-size: 18px;
  color: #ffffff;
  margin: 0;
  font-weight: 700;
}
.legal-article p {
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 12px;
}
.legal-article p:last-child {
  margin-bottom: 0;
}
.legal-callout {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3);
  border-left: 3px solid var(--brand-cyan);
  font-size: 13px;
  color: var(--text-sub);
}

/* ============================================================
 * 11. 响应式布局自适应 (Responsive Media Queries)
 * ============================================================ */
@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: 1fr 1fr;
  }
  .bento-card-large {
    grid-column: span 2;
  }
  .mock-hub-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 10px;
    margin-top: 10px;
    padding: 8px 16px;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: #0d121c;
    border: 1px solid var(--border-card);
    border-radius: 16px;
    padding: 20px;
    flex-direction: column;
    gap: 16px;
    box-shadow: var(--shadow-card);
  }
  .site-nav.is-open {
    display: flex;
  }
  .menu-toggle-btn {
    display: block;
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-card-large {
    grid-column: span 1;
  }
  .hero-proof-bar {
    gap: 14px;
    font-size: 12px;
  }
  .cta-banner {
    padding: 40px 20px;
  }
}


/* ============================================================
 * 主题切换器组件 (Theme Switcher Control)
 * 支持：💻 跟随系统（默认） | ☀️ 明亮模式 | 🌙 暗黑模式
 * ============================================================ */
.theme-switch-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.theme-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
[data-theme="light"] .theme-switch-btn {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.theme-switch-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--brand);
}
[data-theme="light"] .theme-switch-btn:hover {
  background: #f8fafc;
  border-color: var(--brand);
}
.theme-switch-btn .theme-icon {
  font-size: 14px;
  line-height: 1;
}
.theme-switch-btn .theme-label-text {
  font-size: 12.5px;
  color: var(--text-main);
}
.theme-switch-btn .theme-chevron {
  transition: transform 0.2s ease;
  color: var(--text-muted);
}
.theme-switch-btn[aria-expanded="true"] .theme-chevron {
  transform: rotate(180deg);
}

/* 下拉菜单 */
.theme-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 172px;
  padding: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(16px);
  z-index: 1100;
  display: none;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}
[data-theme="light"] .theme-dropdown-menu {
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
  border-color: rgba(0, 0, 0, 0.1);
}
.theme-dropdown-menu.show {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.theme-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}
.theme-menu-item:hover {
  background: rgba(255, 255, 255, 0.08);
}
[data-theme="light"] .theme-menu-item:hover {
  background: #f1f5f9;
}
.theme-menu-item.active {
  color: var(--brand);
  font-weight: 600;
  background: rgba(37, 99, 235, 0.12);
}
[data-theme="light"] .theme-menu-item.active {
  background: #eff6ff;
}
.theme-menu-icon {
  font-size: 14px;
  width: 18px;
  text-align: center;
}
.theme-menu-name {
  flex: 1;
}
.theme-menu-check {
  font-size: 13px;
  opacity: 0;
}
.theme-menu-item.active .theme-menu-check {
  opacity: 1;
}

/* ============================================================
 * 白昼明亮模式针对性精细化适配规则 (Light Mode Specific Overrides)
 * ============================================================ */
[data-theme="light"] html {
  color-scheme: light;
}
[data-theme="light"] body {
  background-color: var(--bg-base);
  color: var(--text-main);
}
[data-theme="light"] .bg-ambient-glow {
  opacity: 0.25;
  filter: blur(100px);
}
[data-theme="light"] body::before {
  opacity: 0.04;
}

/* 导航栏 */
[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(226, 232, 240, 0.85);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
}
[data-theme="light"] .brand-title {
  color: #0f172a;
}
[data-theme="light"] .site-nav a {
  color: #475569;
}
[data-theme="light"] .site-nav a:hover,
[data-theme="light"] .site-nav a.active {
  color: #0f172a;
}
[data-theme="light"] .menu-toggle-btn {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
  color: #0f172a;
}

/* 标题与主要文字 */
[data-theme="light"] .hero-title,
[data-theme="light"] .section-title,
[data-theme="light"] .bento-card h3,
[data-theme="light"] .faq-question,
[data-theme="light"] .cta-banner h2,
[data-theme="light"] .download-hero-header h1,
[data-theme="light"] .mobile-info-col h3,
[data-theme="light"] .sys-req-title,
[data-theme="light"] .platform-tile-btn .tile-name,
[data-theme="light"] .legal-hero h1,
[data-theme="light"] .legal-article h3,
[data-theme="light"] .legal-commit-item h4,
[data-theme="light"] .footer-col h4 {
  color: #0f172a !important;
}

/* Hero 区域 */
[data-theme="light"] .hero-pill-badge {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.2);
  color: #2563eb;
}
[data-theme="light"] .btn-hero-secondary {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  color: #0f172a;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .btn-hero-secondary:hover {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.22);
  color: #0f172a;
}
[data-theme="light"] .hero-proof-bar {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .proof-item-val {
  color: #0f172a;
}

/* 在线体验视窗与模拟器 */
[data-theme="light"] .showcase-tab-btn {
  background: rgba(0, 0, 0, 0.04);
  color: #475569;
}
[data-theme="light"] .showcase-tab-btn:hover {
  background: rgba(0, 0, 0, 0.08);
  color: #0f172a;
}
[data-theme="light"] .showcase-tab-btn.active {
  background: #ffffff;
  color: var(--brand);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .client-window {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 20px 48px -12px rgba(15, 23, 42, 0.12);
}
[data-theme="light"] .client-window-topbar {
  background: #f1f5f9;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .win-title {
  color: #475569;
}
[data-theme="light"] .client-window-content {
  background: #f8fafc;
}
[data-theme="light"] .mock-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}
[data-theme="light"] .mock-card-title {
  color: #0f172a;
}
[data-theme="light"] .mock-code-box,
[data-theme="light"] .mock-input-compound {
  background: #f1f5f9;
  border-color: rgba(0, 0, 0, 0.08);
  color: #0f172a;
}
[data-theme="light"] .mock-input-compound input {
  color: #0f172a;
}
[data-theme="light"] .mock-device-card {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .mock-device-card:hover {
  background: #ffffff;
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .mock-dev-title {
  color: #0f172a;
}
[data-theme="light"] .mock-session-topbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  color: #0f172a;
}
[data-theme="light"] .mock-session-title {
  color: #0f172a;
}
[data-theme="light"] .mock-floating-ball {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .mock-dock-panel {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .mock-dock-item {
  color: #475569;
}
[data-theme="light"] .mock-dock-item:hover {
  background: #f1f5f9;
  color: #0f172a;
}
[data-theme="light"] .mock-dock-item.highlight {
  color: #059669;
}

/* Bento 特性卡片与深度对比表 */
[data-theme="light"] .bento-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
}
[data-theme="light"] .bento-visual-wrapper {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .comparison-table {
  border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .comparison-table th {
  background: #f1f5f9;
  color: #0f172a;
  border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .comparison-table td {
  border-color: rgba(0, 0, 0, 0.06);
  color: #334155;
}
[data-theme="light"] .comparison-table tr:hover td {
  background: rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .comparison-table th.col-highlight {
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
}
[data-theme="light"] .comparison-table td.col-highlight {
  background: rgba(37, 99, 235, 0.03);
  color: #0f172a;
  font-weight: 600;
}
[data-theme="light"] .faq-item {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .faq-question:hover {
  color: var(--brand);
}

/* 下载页面亮色适配 */
[data-theme="light"] .mobile-top-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 10px 30px -5px rgba(16, 185, 129, 0.08);
}
[data-theme="light"] .btn-mobile-sub {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  color: #334155;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .btn-mobile-sub:hover {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.2);
  color: #0f172a;
}
[data-theme="light"] .sys-req-box {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
}
[data-theme="light"] .version-release-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}
[data-theme="light"] .platform-tile-btn {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .platform-tile-btn:hover {
  background: #ffffff;
  border-color: var(--brand);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12);
}
[data-theme="light"] .platform-tile-btn .tile-spec {
  color: #64748b;
}
[data-theme="light"] .version-card-bottom {
  border-top-color: rgba(0, 0, 0, 0.08);
  color: #64748b;
}
[data-theme="light"] .older-releases-link-box {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .download-assistant-toast {
  background: rgba(255, 255, 255, 0.96);
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
  color: #0f172a;
}
[data-theme="light"] .assistant-title {
  color: #0f172a !important;
}
[data-theme="light"] .assistant-desc {
  color: #475569;
}

/* 隐私与法律白皮书 */
[data-theme="light"] .legal-card,
[data-theme="light"] .legal-article {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
}
[data-theme="light"] .legal-callout {
  background: #f8fafc;
  border-left-color: var(--brand);
  color: #475569;
}

/* 页脚与移动端导航抽屉 */
[data-theme="light"] .site-footer {
  border-top-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .footer-bottom {
  border-top-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .site-nav {
  /* 移动端展开样式 */
}
@media (max-width: 860px) {
  [data-theme="light"] .site-nav {
    background: #ffffff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  }
}


/* 浅色模式次级文字与列表增强对比度 */
[data-theme="light"] .mobile-info-col p {
  color: #475569 !important;
}
[data-theme="light"] .version-changelog-text {
  color: #475569 !important;
}
[data-theme="light"] .sys-req-list li {
  color: #334155 !important;
}
[data-theme="light"] .version-card-bottom,
[data-theme="light"] .bottom-hint-text,
[data-theme="light"] .mobile-status-hint {
  color: #64748b !important;
}
[data-theme="light"] .hero-lead {
  color: #475569 !important;
}
[data-theme="light"] .section-desc {
  color: #475569 !important;
}
[data-theme="light"] .bento-card p {
  color: #475569 !important;
}
[data-theme="light"] .faq-answer p {
  color: #475569 !important;
}


/* 移动端窄屏极速自适应优化 */
@media (max-width: 640px) {
  .theme-switch-btn {
    padding: 0 8px;
    height: 32px;
    gap: 4px;
  }
  .theme-switch-btn .theme-label-text {
    display: none;
  }
  .theme-dropdown-menu {
    right: -20px;
    min-width: 155px;
  }
  .btn-nav-primary {
    padding: 6px 12px;
    font-size: 12.5px;
  }
}


/* ============================================================
 * 向日葵大厂风格：KPI 硬核指标展台 (Hero Metric Counters)
 * ============================================================ */
.hero-kpi-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  max-width: 980px;
  width: 100%;
  margin: 20px auto 0 auto;
  padding: 18px 24px;
  background: rgba(15, 21, 32, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  z-index: 2;
}
[data-theme="light"] .hero-kpi-bar {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 16px 36px -8px rgba(15, 23, 42, 0.06), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
}
.kpi-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 8px 12px;
  position: relative;
}
.kpi-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 15%;
  height: 70%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--border-card), transparent);
}
.kpi-num-row {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 4px;
}
.kpi-num {
  font-size: 38px;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -1px;
  line-height: 1;
  background: linear-gradient(135deg, #ffffff 0%, var(--brand-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
[data-theme="light"] .kpi-num {
  background: linear-gradient(135deg, #0f172a 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.kpi-unit {
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-cyan);
}
[data-theme="light"] .kpi-unit {
  color: #2563eb;
}
.kpi-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 3px;
}
[data-theme="light"] .kpi-label {
  color: #1e293b;
}
.kpi-sub {
  font-size: 11.5px;
  color: var(--text-sub);
}
[data-theme="light"] .kpi-sub {
  color: #64748b;
}
[data-theme="light"] .kpi-item:not(:last-child)::after {
  background: rgba(226, 232, 240, 0.9);
}

/* 优雅滚动提示 */
.hero-scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 22px;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-sub);
  text-decoration: none;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  transition: all 0.22s ease;
  position: relative;
  z-index: 2;
}
.hero-scroll-cue:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(2px);
}
[data-theme="light"] .hero-scroll-cue {
  background: rgba(255, 255, 255, 0.6);
  border-color: rgba(226, 232, 240, 0.9);
  color: #64748b;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03);
}
[data-theme="light"] .hero-scroll-cue:hover {
  color: #2563eb;
  border-color: #2563eb;
  background: #ffffff;
}

/* ============================================================
 * 向日葵大厂风格：四大场景深度图文展台 (Feature Scenes Showcase)
 * ============================================================ */
.scenes-wrapper {
  margin: 70px 0;
}
.scenes-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 36px;
}
.scene-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 44px;
  padding: 38px 42px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}
.scene-card:hover {
  border-color: rgba(34, 191, 208, 0.45);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5), 0 0 30px rgba(34, 191, 208, 0.12);
  transform: translateY(-2px);
}
[data-theme="light"] .scene-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.05);
}
[data-theme="light"] .scene-card:hover {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 18px 45px rgba(37, 99, 235, 0.12);
}
.scene-card.reverse {
  grid-template-columns: 0.95fr 1.05fr;
}
.scene-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(34, 191, 208, 0.12);
  color: var(--brand-cyan);
  border: 1px solid rgba(34, 191, 208, 0.25);
  margin-bottom: 14px;
}
.scene-badge-pill.green {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.25);
}
.scene-badge-pill.amber {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.25);
}
.scene-badge-pill.purple {
  background: rgba(139, 92, 246, 0.12);
  color: #a78bfa;
  border-color: rgba(139, 92, 246, 0.25);
}
.scene-content h3 {
  font-size: 26px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.32;
  margin-bottom: 12px;
}
[data-theme="light"] .scene-content h3 {
  color: #0f172a !important;
}
.scene-content p.scene-lead {
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 22px;
}
[data-theme="light"] .scene-content p.scene-lead {
  color: #475569 !important;
}
.scene-points-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
.scene-points-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-main);
  line-height: 1.5;
}
.scene-points-list li .point-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 1px;
}
.scene-visual-panel {
  background: var(--bg-deep);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: inset 0 2px 12px rgba(0, 0, 0, 0.35);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
[data-theme="light"] .scene-visual-panel {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.03);
}
.scene-sim-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}
.scene-sim-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.scene-tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scene-tag-item {
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--text-sub);
}
[data-theme="light"] .scene-tag-item {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
  color: #475569;
}

/* 响应式适配 */
@media (max-width: 960px) {
  .hero-kpi-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .kpi-item:nth-child(2)::after {
    display: none;
  }
  .scene-card,
  .scene-card.reverse {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 28px 24px;
  }
}
@media (max-width: 580px) {
  .hero-kpi-bar {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }
  .kpi-item:not(:last-child)::after {
    display: none;
  }
  .kpi-num {
    font-size: 32px;
  }
  .scene-content h3 {
    font-size: 22px;
  }
}

/* 浅色主题激活态下划线高亮统一 */
[data-theme="light"] .site-nav a.active::after {
  background: #2563eb;
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.4);
}
[data-theme="light"] .site-nav a.active {
  color: #2563eb;
}