/* ===================================================================
   速云梯 - 全局赛博机甲·幻光都市二次元主题样式表 (style.css)
   视觉定位：Cyber-Mecha Neo-Tokyo & Holographic Navigator
   核心特性：磨砂玻璃质感、全息彩虹折射光、呼吸光效、3D卡片倾斜、光线跟随、零外部依赖
   =================================================================== */

:root {
  --font-system: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* 赛博暗夜色系 */
  --bg-void: #060813;
  --bg-deep: #0a0f24;
  --bg-surface: rgba(15, 23, 42, 0.78);
  --bg-surface-elevated: rgba(22, 33, 62, 0.88);
  --bg-glass-card: rgba(18, 28, 54, 0.65);
  --bg-glass-hover: rgba(26, 40, 76, 0.82);

  /* 幻光机甲霓虹色彩 */
  --neon-cyan: #00f2fe;
  --neon-cyan-glow: rgba(0, 242, 254, 0.35);
  --neon-blue: #38bdf8;
  --neon-magenta: #f43f5e;
  --neon-magenta-glow: rgba(244, 63, 94, 0.32);
  --neon-purple: #a855f7;
  --neon-purple-glow: rgba(168, 85, 247, 0.3);
  --neon-gold: #fbbf24;
  --neon-green: #10b981;

  /* 文字颜色层级 */
  --text-pure: #ffffff;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* 边框与光影材质 */
  --border-glass: rgba(56, 189, 248, 0.16);
  --border-glass-hover: rgba(0, 242, 254, 0.48);
  --border-magenta-glow: rgba(244, 63, 94, 0.45);
  --glow-button: 0 0 25px rgba(0, 242, 254, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.4);
  --glow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.4);

  --max-width: 1180px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-void);
}

body {
  font-family: var(--font-system);
  background-color: var(--bg-void);
  color: var(--text-main);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

a:hover {
  color: #ffffff;
  text-shadow: 0 0 8px rgba(0, 242, 254, 0.6);
}

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ===================================================================
   背景动效舞台：星轨矩阵、霓虹光晕、赛博网格
   =================================================================== */
.cyber-stage-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-nebula-glow {
  position: absolute;
  top: -20%;
  left: -15%;
  width: 130%;
  height: 130%;
  background:
    radial-gradient(circle at 18% 22%, rgba(0, 242, 254, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 82% 18%, rgba(244, 63, 94, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 50% 75%, rgba(168, 85, 247, 0.10) 0%, transparent 55%),
    radial-gradient(circle at 75% 85%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
    linear-gradient(180deg, var(--bg-void) 0%, var(--bg-deep) 100%);
  filter: blur(48px);
}

.cyber-perspective-grid {
  position: absolute;
  bottom: 0;
  left: -50%;
  width: 200%;
  height: 55%;
  background-image:
    linear-gradient(to right, rgba(56, 189, 248, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(56, 189, 248, 0.07) 1px, transparent 1px);
  background-size: 50px 50px;
  transform: perspective(600px) rotateX(65deg);
  transform-origin: bottom center;
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 85%);
  -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 85%);
}

/* 呼吸浮动光子 */
.floating-photon {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  animation: photonFloat 12s infinite ease-in-out alternate;
}

.photon-1 {
  width: 6px;
  height: 6px;
  background: var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan);
  top: 25%;
  left: 12%;
  animation-duration: 9s;
}

.photon-2 {
  width: 8px;
  height: 8px;
  background: var(--neon-magenta);
  box-shadow: 0 0 16px var(--neon-magenta);
  top: 40%;
  right: 15%;
  animation-duration: 14s;
  animation-delay: -3s;
}

.photon-3 {
  width: 5px;
  height: 5px;
  background: var(--neon-purple);
  box-shadow: 0 0 10px var(--neon-purple);
  bottom: 30%;
  left: 28%;
  animation-duration: 11s;
  animation-delay: -5s;
}

@keyframes photonFloat {
  0% { transform: translate3d(0, 0, 0) scale(0.9); opacity: 0.3; }
  50% { transform: translate3d(24px, -35px, 0) scale(1.2); opacity: 0.85; }
  100% { transform: translate3d(-18px, -60px, 0) scale(0.8); opacity: 0.25; }
}

/* ===================================================================
   高转化 CTA 按钮系统：光芒扫过、渐变流动、点击波纹、按压回弹
   =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  user-select: none;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97) !important;
}

.btn-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #0284c7 45%, #6366f1 100%);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 24px rgba(0, 242, 254, 0.38), 0 4px 16px rgba(0, 0, 0, 0.4);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #0369a1 45%, #4f46e5 100%);
  color: #ffffff;
  box-shadow: 0 0 32px rgba(0, 242, 254, 0.65), 0 6px 20px rgba(0, 0, 0, 0.5);
  transform: translateY(-2px);
}

/* 按钮高光流光扫过效果 */
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 80%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-25deg);
  animation: btnShimmer 4.5s infinite ease-in-out;
}

@keyframes btnShimmer {
  0%, 60% { left: -150%; }
  100% { left: 220%; }
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(10px);
  color: var(--text-main);
  border: 1px solid var(--border-glass);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover {
  background: rgba(26, 40, 76, 0.85);
  border-color: var(--neon-cyan);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* 触摸波纹效果 */
.click-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: rippleOut 0.55s ease-out forwards;
  pointer-events: none;
}

@keyframes rippleOut {
  to {
    transform: scale(3.5);
    opacity: 0;
  }
}

/* ===================================================================
   顶部导航 Header：霓虹机甲 HUD 质感
   =================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(6, 8, 19, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  transition: all 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(6, 8, 19, 0.94);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(56, 189, 248, 0.28);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.brand-emblem-wrap {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(244, 63, 94, 0.2));
  border: 1px solid var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 14px var(--neon-cyan-glow);
  position: relative;
  overflow: hidden;
}

.brand-emblem-wrap svg {
  width: 22px;
  height: 22px;
}

.brand-text-block {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--neon-cyan);
  padding: 1px 6px;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 4px;
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  position: relative;
  padding: 6px 0;
  transition: color 0.15s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 999px;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.menu-toggle {
  display: none;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glass);
  padding: 8px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  cursor: pointer;
}

/* 移动端菜单抽屉 */
.mobile-nav-panel {
  display: none;
  background: rgba(10, 15, 36, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 20px 24px 28px;
}

.mobile-nav-panel.is-open {
  display: block;
}

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.mobile-menu-item a {
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ===================================================================
   Hero 首屏主视觉：动漫领航员立绘、全息共鸣舱、HUD 动态监测仪
   =================================================================== */
.hero-section {
  position: relative;
  z-index: 1;
  padding: 60px 0 70px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-hud-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.32);
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.hud-spark {
  color: var(--neon-cyan);
  font-size: 0.85rem;
  animation: pulseSpin 3s infinite linear;
}

@keyframes pulseSpin {
  0% { transform: scale(1) rotate(0deg); opacity: 0.8; }
  50% { transform: scale(1.25) rotate(180deg); opacity: 1; }
  100% { transform: scale(1) rotate(360deg); opacity: 0.8; }
}

.hud-kicker-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--neon-cyan);
  letter-spacing: 0.06em;
}

.hero-title {
  font-size: 2.85rem;
  line-height: 1.22;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-title-highlight {
  background: linear-gradient(135deg, #00f2fe 0%, #38bdf8 50%, #f43f5e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 24px rgba(0, 242, 254, 0.25);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

/* 首屏规格条目 */
.hero-data-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 26px;
  border-top: 1px solid var(--border-glass);
}

.data-item {
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(56, 189, 248, 0.12);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease;
}

.data-item:hover {
  border-color: var(--neon-cyan);
}

.data-item-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 3px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.data-item-desc {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ===================================================================
   Hero 右侧：次元机甲领航员舞台 (Anime Navigator Chamber)
   =================================================================== */
.hero-stage-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.pilot-card-frame {
  position: relative;
  width: 100%;
  max-width: 440px;
  border-radius: var(--radius-lg);
  background: var(--bg-glass-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 242, 254, 0.15);
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}

.pilot-card-frame:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.7), 0 0 45px rgba(0, 242, 254, 0.28);
}

/* 顶部机甲 HUD 标题栏 */
.pilot-hud-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(10, 16, 35, 0.85);
  border-bottom: 1px solid var(--border-glass);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.hud-status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--neon-cyan);
  font-weight: 700;
}

.status-beacon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: beaconBlink 2s infinite ease-in-out;
}

@keyframes beaconBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hud-code-tag {
  color: var(--neon-magenta);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* 角色立绘主体视口 */
.pilot-character-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 3.8;
  overflow: hidden;
  background: #060914;
}

.pilot-portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  filter: contrast(1.05) saturate(1.08);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.pilot-card-frame:hover .pilot-portrait-img {
  transform: scale(1.035);
}

/* 全息光环扫描线 */
.hologram-scan-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 242, 254, 0.12) 50%,
    transparent 100%
  );
  background-size: 100% 180px;
  animation: holoScanMove 5s linear infinite;
  pointer-events: none;
  mix-blend-mode: screen;
}

@keyframes holoScanMove {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* 领航员全息对白气泡 */
.pilot-dialogue-bubble {
  position: absolute;
  bottom: 84px;
  left: 14px;
  right: 14px;
  background: rgba(9, 14, 30, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  animation: dialogueFloat 4s ease-in-out infinite alternate;
}

@keyframes dialogueFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-4px); }
}

.bubble-companion-mini {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--neon-magenta);
  object-fit: cover;
  flex-shrink: 0;
}

.bubble-text-msg {
  font-size: 0.8rem;
  color: var(--text-pure);
  line-height: 1.45;
  font-weight: 500;
}

/* 底部实时遥测监控条 */
.pilot-telemetry-tray {
  padding: 12px 16px;
  background: rgba(10, 16, 35, 0.95);
  border-top: 1px solid var(--border-glass);
}

.telemetry-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
}

.telemetry-node-name {
  color: var(--text-muted);
}

.telemetry-latency {
  color: var(--neon-cyan);
  font-weight: 700;
}

.telemetry-progress-track {
  width: 100%;
  height: 4px;
  background: rgba(56, 189, 248, 0.15);
  border-radius: 999px;
  overflow: hidden;
}

.telemetry-progress-fill {
  width: 88%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  border-radius: 999px;
  animation: telemetryPulse 2.5s infinite ease-in-out;
}

@keyframes telemetryPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* ===================================================================
   核心模块通用排版与标题 (Section Header)
   =================================================================== */
.section-wrapper {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}

.section-wrapper.bg-surface-tint {
  background: rgba(10, 15, 34, 0.65);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
}

.section-header-block {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-kicker-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.28);
  padding: 3px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  letter-spacing: 0.08em;
}

.section-heading {
  font-size: 2.15rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.68;
}

/* ===================================================================
   模块 1: 优势与 AI 支持模块 (Benefits & AI - 3 Cards)
   =================================================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.benefit-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.benefit-card:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 24px rgba(0, 242, 254, 0.2);
}

.benefit-card-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(0, 242, 254, 0.1);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
  border: 1px solid rgba(0, 242, 254, 0.25);
}

.benefit-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.benefit-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===================================================================
   模块 2: 核心特性模块 (Features - 4 Cards)
   =================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.feature-box {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-box:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 242, 254, 0.22);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.18), rgba(99, 102, 241, 0.25));
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 0 16px var(--neon-cyan-glow);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===================================================================
   模块 3: 流媒体支持模块 (Streaming Support - 4 Cards)
   =================================================================== */
.streaming-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.streaming-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.streaming-card:hover {
  transform: translateY(-5px);
  border-color: var(--neon-magenta);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 0 24px var(--neon-magenta-glow);
}

.streaming-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: block;
}

.streaming-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.streaming-status {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--neon-green);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 3px 12px;
  border-radius: 999px;
}

/* ===================================================================
   模块 4: 使用场景卡模块 (Scenarios - 3 Cards)
   =================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.scenario-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.scenario-card:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 24px rgba(0, 242, 254, 0.2);
}

.scenario-header {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-glass);
}

.scenario-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.scenario-device {
  font-size: 0.82rem;
  color: var(--neon-cyan);
  font-weight: 700;
  font-family: var(--font-mono);
}

.scenario-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex-grow: 1;
}

/* ===================================================================
   模块 5: 套餐定价模块 (Pricing - 3 Tiers)
   =================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 242, 254, 0.25);
}

.pricing-card.featured {
  background: rgba(18, 28, 58, 0.85);
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.65), 0 0 35px rgba(0, 242, 254, 0.32);
  transform: translateY(-6px);
}

.pricing-card.featured:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.75), 0 0 45px rgba(0, 242, 254, 0.45);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 3px 18px;
  border-radius: var(--radius-full);
  letter-spacing: 0.08em;
  box-shadow: 0 0 16px var(--neon-magenta-glow);
}

.pricing-tier-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.pricing-tier-target {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 22px;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-glass);
}

.price-currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--neon-cyan);
}

.price-amount {
  font-size: 2.6rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.price-period {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.pricing-features-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-main);
}

.check-mark {
  color: var(--neon-cyan);
  font-weight: 800;
}

/* ===================================================================
   模块 6: 常见问题模块 (FAQ - 6 Items)
   ================================================================== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  transition: all 0.25s ease;
}

.faq-card:hover {
  border-color: var(--border-glass-hover);
  background: var(--bg-glass-hover);
  transform: translateX(4px);
}

.faq-question {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-q-tag {
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.95rem;
}

.faq-answer {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.68;
  padding-left: 26px;
}

/* ===================================================================
   模块 7: Final CTA 模块
   =================================================================== */
.final-cta-section {
  position: relative;
  z-index: 1;
  padding: 80px 0;
  background: linear-gradient(180deg, rgba(10, 16, 38, 0.7) 0%, rgba(6, 8, 19, 0.95) 100%);
  border-top: 1px solid var(--border-glass);
  text-align: center;
  overflow: hidden;
}

.final-cta-content {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.final-cta-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.3;
}

.final-cta-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 32px;
}

/* ===================================================================
   页脚 Footer
   =================================================================== */
.site-footer {
  position: relative;
  z-index: 1;
  background: #04060e;
  color: var(--text-dim);
  padding: 60px 0 30px;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
  font-size: 0.9rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}

.footer-brand-desc {
  margin-top: 16px;
  color: var(--text-dim);
  max-width: 400px;
  line-height: 1.65;
  font-size: 0.88rem;
}

.footer-col-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link-list a {
  color: var(--text-dim);
}

.footer-link-list a:hover {
  color: var(--neon-cyan);
}

.footer-bottom-bar {
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #475569;
  font-size: 0.84rem;
}

/* ===================================================================
   移动端吸底 CTA
   =================================================================== */
.sticky-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(6, 8, 19, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-glass-hover);
  padding: 10px 16px;
  z-index: 850;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

.sticky-mobile-bar.is-visible {
  display: block;
}

/* ===================================================================
   悬浮动漫小助手 (Floating Anime Companion)
   =================================================================== */
.floating-companion-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 820;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.companion-badge-btn {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 20px var(--neon-cyan-glow), 0 8px 24px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
  background: #080c1e;
}

.companion-badge-btn:hover {
  transform: scale(1.1) rotate(5deg);
  border-color: var(--neon-magenta);
  box-shadow: 0 0 28px var(--neon-magenta-glow), 0 10px 30px rgba(0, 0, 0, 0.8);
}

.companion-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.companion-tooltip-toast {
  background: rgba(10, 16, 36, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 0.82rem;
  color: var(--text-pure);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.floating-companion-widget:hover .companion-tooltip-toast {
  opacity: 1;
  transform: translateX(0);
}

/* ===================================================================
   文章正文与信息页面样式 (Articles & Guides)
   =================================================================== */
.article-page-wrap {
  position: relative;
  z-index: 1;
  padding: 50px 0 80px;
}

.article-content-box {
  background: var(--bg-glass-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.breadcrumb-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 26px;
}

.breadcrumb-separator {
  color: rgba(255, 255, 255, 0.2);
}

.article-header {
  margin-bottom: 36px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border-glass);
}

.article-h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.32;
  margin-bottom: 16px;
}

.article-meta-info {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.article-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.75;
  background: rgba(14, 23, 46, 0.7);
  border-left: 4px solid var(--neon-cyan);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 34px;
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 40px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-glass);
}

.article-body h3 {
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--neon-cyan);
  margin-top: 26px;
  margin-bottom: 14px;
}

.article-body p {
  font-size: 0.98rem;
  line-height: 1.8;
  color: #cbd5e1;
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin-bottom: 22px;
  padding-left: 22px;
}

.article-body ul {
  list-style-type: disc;
}

.article-body ol {
  list-style-type: decimal;
}

.article-body li {
  font-size: 0.96rem;
  line-height: 1.75;
  color: #cbd5e1;
  margin-bottom: 10px;
}

.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.article-table th {
  background: rgba(10, 16, 36, 0.9);
  color: #ffffff;
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-glass);
}

.article-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-muted);
}

.article-table tr:last-child td {
  border-bottom: none;
}

.article-faq-box {
  margin-top: 40px;
  padding: 28px;
  background: rgba(10, 16, 36, 0.85);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
}

.article-faq-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.article-faq-item {
  margin-bottom: 18px;
}

.article-faq-q {
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: 8px;
  font-size: 0.98rem;
}

.article-faq-a {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.article-summary-card {
  margin-top: 40px;
  padding: 24px 26px;
  background: rgba(0, 242, 254, 0.06);
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-md);
}

.article-summary-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: 12px;
}

.article-end-cta {
  margin-top: 44px;
  padding: 36px 30px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(8, 12, 28, 0.98));
  border: 1px solid var(--border-glass-hover);
  border-radius: var(--radius-lg);
  color: #ffffff;
  text-align: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

.article-end-cta-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.article-end-cta-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.article-interlinks-box {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--border-glass);
}

.interlinks-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.interlinks-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.interlinks-list a {
  font-size: 0.94rem;
  color: var(--neon-cyan);
}

/* ===================================================================
   响应式断点 (Responsive Media Queries)
   =================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .hero-stage-visual {
    order: -1;
  }
  .pilot-card-frame {
    max-width: 380px;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .streaming-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .nav-menu, .nav-actions .btn-primary {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.15rem;
  }
  .hero-data-strip {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .streaming-grid {
    grid-template-columns: 1fr;
  }
  .article-content-box {
    padding: 28px 20px;
  }
  .article-h1 {
    font-size: 1.75rem;
  }
  .footer-bottom-bar {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .floating-companion-widget {
    bottom: 74px;
    right: 16px;
  }
  body {
    padding-bottom: 60px;
  }
}

/* 无障碍：减少动效模式 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .floating-photon, .hologram-scan-overlay, .btn-primary::after {
    display: none !important;
  }
}