/* ====================================================================
   Tomcat - 苍穹浮岛 · 极光微光与以太秘境 (Aether Aurora Haven UI)
   特别强化：【动漫角色立绘 · 以太风行者希尔维亚 · 视线视差与表情反馈】
   ==================================================================== */

:root {
  --bg-dark: #07131e;
  --bg-deep: #050e17;
  --bg-card: rgba(13, 27, 44, 0.78);
  --bg-card-hover: rgba(18, 38, 62, 0.9);
  --bg-card-elevated: rgba(22, 45, 74, 0.94);
  --bg-input: rgba(9, 21, 35, 0.88);

  --text-pure: #ffffff;
  --text-main: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #8497ad;

  --border-subtle: rgba(56, 189, 248, 0.2);
  --border-glow: rgba(0, 242, 254, 0.52);
  --border-emerald: rgba(16, 185, 129, 0.48);
  --border-active: rgba(0, 242, 254, 0.95);

  --color-cyan: #00f2fe;
  --color-blue: #4facfe;
  --color-emerald: #10b981;
  --color-amber: #fbbf24;
  --color-pink: #f43f5e;

  --grad-cyan-blue: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --grad-aurora: linear-gradient(135deg, #00f2fe 0%, #10b981 100%);
  --grad-btn-primary: linear-gradient(135deg, #00f2fe 0%, #0284c7 100%);
  --grad-btn-hover: linear-gradient(135deg, #38bdf8 0%, #0369a1 100%);
  --grad-card: linear-gradient(180deg, rgba(16, 34, 56, 0.65) 0%, rgba(10, 22, 38, 0.9) 100%);

  --shadow-neon-cyan: 0 0 25px rgba(0, 242, 254, 0.35);
  --shadow-neon-emerald: 0 0 25px rgba(16, 185, 129, 0.32);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.55);

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --container-max: 1180px;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-main);
}

body {
  font-family: var(--font-family);
  line-height: 1.65;
  background-color: var(--bg-dark);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 18% 12%, rgba(0, 242, 254, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 82% 40%, rgba(16, 185, 129, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 50% 88%, rgba(79, 172, 254, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ====================================================================
   自然与魔法环境特效层 (萤火虫漂浮 + 苍穹流星)
   ==================================================================== */
.ambient-fx-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.firefly {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  box-shadow: 0 0 10px 2px currentColor;
  animation: fireflyFloat ease-in-out infinite alternate;
}

.firefly--1 { width: 5px; height: 5px; left: 12%; top: 22%; color: #00f2fe; animation-duration: 9s; animation-delay: 0s; }
.firefly--2 { width: 4px; height: 4px; left: 28%; top: 65%; color: #10b981; animation-duration: 12s; animation-delay: 1.5s; }
.firefly--3 { width: 6px; height: 6px; left: 45%; top: 35%; color: #38bdf8; animation-duration: 8s; animation-delay: 3s; }
.firefly--4 { width: 4px; height: 4px; left: 62%; top: 18%; color: #fbbf24; animation-duration: 14s; animation-delay: 0.8s; }
.firefly--5 { width: 5px; height: 5px; left: 78%; top: 58%; color: #00f2fe; animation-duration: 11s; animation-delay: 2.2s; }
.firefly--6 { width: 4px; height: 4px; left: 88%; top: 28%; color: #10b981; animation-duration: 10s; animation-delay: 4.5s; }
.firefly--7 { width: 5px; height: 5px; left: 35%; top: 82%; color: #38bdf8; animation-duration: 13s; animation-delay: 3.1s; }

@keyframes fireflyFloat {
  0% { transform: translate(0, 0) scale(0.8); opacity: 0.3; }
  50% { transform: translate(25px, -30px) scale(1.3); opacity: 0.95; }
  100% { transform: translate(-20px, -55px) scale(0.9); opacity: 0.4; }
}

.meteor {
  position: absolute;
  top: 10%;
  right: -100px;
  width: 140px;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 242, 254, 0.9), rgba(79, 172, 254, 0.4), transparent);
  transform: rotate(-35deg);
  opacity: 0;
  animation: meteorShoot 12s ease-in-out infinite;
}

.meteor--2 {
  top: 35%;
  right: -120px;
  width: 180px;
  animation-duration: 17s;
  animation-delay: 6s;
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.9), rgba(0, 242, 254, 0.3), transparent);
}

@keyframes meteorShoot {
  0%, 85% { opacity: 0; transform: translate(0, 0) rotate(-35deg); }
  88% { opacity: 1; }
  94% { transform: translate(-650px, 450px) rotate(-35deg); opacity: 0; }
  100% { opacity: 0; transform: translate(-650px, 450px) rotate(-35deg); }
}

/* 布局容器 */
.site-container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 2;
}

/* ====================================================================
   顶部导航 Header
   ==================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 19, 30, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.25s ease;
}

.site-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-pure);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.site-header__logo-img {
  width: 36px;
  height: 36px;
  display: block;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.5));
}

.site-header__logo-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid var(--border-glow);
  color: var(--color-cyan);
  letter-spacing: 0.05em;
  margin-left: 2px;
}

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

.site-nav__link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
  padding: 6px 0;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--grad-cyan-blue);
  transition: all 0.25s ease;
  transform: translateX(-50%);
  border-radius: 2px;
}

.site-nav__link:hover {
  color: var(--color-cyan);
}

.site-nav__link:hover::after {
  width: 100%;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-btn-primary);
  color: #031422;
  padding: 9px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.35);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.site-nav__cta:hover {
  box-shadow: 0 0 24px rgba(0, 242, 254, 0.6);
  transform: translateY(-1px);
}

.site-header__menu-btn {
  display: none;
  background: rgba(13, 27, 44, 0.6);
  border: 1px solid var(--border-subtle);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-cyan);
}

/* ====================================================================
   按钮体系 (高转化 & 呼吸光效 & 粒子点击波纹)
   ==================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.btn--primary {
  background: var(--grad-btn-primary);
  color: #031422;
  box-shadow: 0 0 22px rgba(0, 242, 254, 0.38);
}

.btn--primary::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -70%;
  width: 50%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: rotate(25deg);
  animation: btnShimmer 3.5s infinite;
}

@keyframes btnShimmer {
  0% { left: -70%; }
  30% { left: 140%; }
  100% { left: 140%; }
}

.btn--primary:hover {
  background: var(--grad-btn-hover);
  box-shadow: 0 0 32px rgba(0, 242, 254, 0.65);
  transform: translateY(-2px);
  color: #020f1a;
}

.btn--primary:active {
  transform: translateY(1px) scale(0.98);
}

.btn--outline {
  background: rgba(13, 27, 44, 0.65);
  color: var(--text-main);
  border-color: var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn--outline:hover {
  background: rgba(22, 45, 74, 0.85);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.2);
  transform: translateY(-2px);
}

.btn--outline:active {
  transform: translateY(1px) scale(0.98);
}

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

/* ====================================================================
   Hero 模块 (动漫双栏布局 + 动漫角色立绘希尔维亚)
   ==================================================================== */
.hero {
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.hero__content {
  position: relative;
  z-index: 3;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid var(--border-glow);
  color: var(--color-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
  box-shadow: 0 0 14px rgba(0, 242, 254, 0.15);
}

.hero__badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-cyan);
  box-shadow: 0 0 8px var(--color-cyan);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.hero__title {
  font-size: 2.85rem;
  line-height: 1.24;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__title-accent {
  background: var(--grad-cyan-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  filter: drop-shadow(0 0 18px rgba(0, 242, 254, 0.3));
}

.hero__desc {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 580px;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 36px;
}

.hero__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}

.hero__spec-item {
  padding-left: 12px;
  border-left: 2px solid var(--color-cyan);
}

.hero__spec-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 2px;
  letter-spacing: -0.02em;
}

.hero__spec-label {
  font-size: 0.825rem;
  color: var(--text-muted);
}

/* ====================================================================
   动漫角色核心模块：以太领航员 · 希尔维亚 (Mascot & Dialogue HUD)
   ==================================================================== */
.hero__mascot-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  perspective: 1000px;
}

/* 角色与背景视差分层容器 */
.anime-mascot-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  background: var(--grad-card);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.28), var(--shadow-card);
  overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  cursor: pointer;
}

/* 背景魔法符文与以太光芒环 */
.anime-mascot-aura {
  position: absolute;
  top: -20%;
  left: -20%;
  width: 140%;
  height: 140%;
  background: radial-gradient(circle at 50% 40%, rgba(0, 242, 254, 0.22) 0%, rgba(16, 185, 129, 0.12) 45%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.anime-mascot-rune-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 340px;
  height: 340px;
  margin-left: -170px;
  margin-top: -170px;
  border: 1.5px dashed rgba(0, 242, 254, 0.35);
  border-radius: 50%;
  animation: spinRuneOuter 40s linear infinite;
  pointer-events: none;
  z-index: 1;
}

/* 角色立绘包装层 */
.anime-mascot-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.anime-mascot-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  display: block;
  animation: animeBreathing 6s ease-in-out infinite;
  transform-origin: center bottom;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.6));
}

@keyframes animeBreathing {
  0%, 100% {
    transform: translateY(0) scale(1) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) scale(1.015) rotate(0.4deg);
  }
}

/* 角色徽标标签 */
.anime-mascot-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 5;
  background: rgba(7, 19, 30, 0.88);
  border: 1px solid var(--border-glow);
  padding: 4px 12px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-pure);
  backdrop-filter: blur(8px);
  letter-spacing: 0.04em;
}

.anime-mascot-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-emerald);
  box-shadow: 0 0 6px var(--color-emerald);
}

/* 浮空实时 HUD 指示牌 (挂在立绘右下角) */
.anime-mascot-hud {
  position: absolute;
  bottom: 14px;
  right: 14px;
  z-index: 5;
  background: rgba(7, 19, 30, 0.92);
  border: 1px solid var(--border-glow);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.25);
}

.anime-mascot-hud-label {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.anime-mascot-hud-value {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-cyan);
  font-family: monospace;
}

/* ====================================================================
   希尔维亚互动台词与表情气泡 (Speech & Reaction Bubble)
   ==================================================================== */
.anime-dialogue-card {
  width: 100%;
  max-width: 420px;
  margin-top: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  position: relative;
  z-index: 4;
}

.anime-dialogue-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.anime-dialogue-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
  object-fit: cover;
  flex-shrink: 0;
}

.anime-dialogue-info {
  display: flex;
  flex-direction: column;
}

.anime-dialogue-name {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-pure);
  display: flex;
  align-items: center;
  gap: 6px;
}

.anime-dialogue-role {
  font-size: 0.72rem;
  color: var(--color-cyan);
  font-weight: 600;
}

.anime-dialogue-bubble {
  background: rgba(9, 21, 35, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 12px;
  position: relative;
  min-height: 52px;
  transition: all 0.2s ease;
}

.anime-dialogue-text {
  transition: opacity 0.15s ease;
}

/* 互动点击芯片按钮 (Action Chips) */
.anime-dialogue-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.anime-chip-btn {
  background: rgba(13, 27, 44, 0.9);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.anime-chip-btn:hover {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.25);
  transform: translateY(-1px);
}

.anime-chip-btn--active {
  background: rgba(0, 242, 254, 0.2);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

/* ====================================================================
   交互式组件：苍穹链路调度台 (Aether Console)
   ==================================================================== */
.console-section {
  margin: 10px auto 60px;
  max-width: var(--container-max);
}

.aether-console {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.aether-console::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), var(--color-emerald), transparent);
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 18px;
  margin-bottom: 24px;
}

.console-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.console-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-pure);
}

.console-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid var(--border-emerald);
  color: var(--color-emerald);
  border-radius: 999px;
}

.console-tabs {
  display: flex;
  gap: 10px;
}

.console-tab-btn {
  background: rgba(13, 27, 44, 0.8);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.console-tab-btn:hover {
  border-color: var(--color-cyan);
  color: var(--text-pure);
}

.console-tab-btn--active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--border-glow);
  color: var(--color-cyan);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.console-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.console-metric-card {
  background: rgba(9, 21, 35, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
}

.console-metric-label {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.console-metric-val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-cyan);
  font-family: monospace;
  margin-bottom: 4px;
}

.console-metric-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
}

/* ====================================================================
   通用 Section 头部与排版
   ==================================================================== */
.section {
  padding: 72px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-header__tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-cyan);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-header__title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-header__desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ====================================================================
   流媒体支持 与 AI 支持 (双栏超晶体玻璃面板)
   ==================================================================== */
.support-dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.support-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

.support-panel:hover {
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.2);
  transform: translateY(-3px);
}

.support-panel__title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.support-panel__icon {
  width: 32px;
  height: 32px;
  color: var(--color-cyan);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.4));
}

.support-panel__desc {
  font-size: 0.975rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.65;
}

.support-panel__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.support-panel__list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.support-panel__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--border-emerald);
  color: var(--color-emerald);
  font-size: 0.75rem;
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ====================================================================
   特性卡片网格 (4 张机能卡片 + 3D 鼠标微倾斜)
   ==================================================================== */
.features-grid--4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(12px);
}

.feature-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 25px -8px rgba(0, 242, 254, 0.25);
  transform: translateY(-4px);
}

.feature-card__icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--color-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  box-shadow: 0 0 14px rgba(0, 242, 254, 0.2);
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.feature-card__desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ====================================================================
   使用场景卡片 (3 张机能风动漫场景卡)
   ==================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.scenario-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 10px 30px -10px rgba(79, 172, 254, 0.25);
  transform: translateY(-3px);
}

.scenario-card__header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.scenario-card__title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 8px;
}

.scenario-card__device {
  font-size: 0.85rem;
  color: var(--color-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.scenario-card__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex-grow: 1;
}

/* ====================================================================
   定价卡片 (超晶体光冕 + 推荐档位突出)
   ==================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  backdrop-filter: blur(14px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.pricing-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
}

.pricing-card--popular {
  border-color: var(--color-cyan);
  background: linear-gradient(180deg, rgba(16, 38, 64, 0.85) 0%, rgba(10, 24, 40, 0.95) 100%);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.22);
  transform: scale(1.02);
}

.pricing-card--popular:hover {
  box-shadow: 0 0 45px rgba(0, 242, 254, 0.38);
  transform: scale(1.02) translateY(-4px);
}

.pricing-card__popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-btn-primary);
  color: #031422;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  box-shadow: 0 0 14px rgba(0, 242, 254, 0.5);
  white-space: nowrap;
}

.pricing-card__tier {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 6px;
}

.pricing-card__target {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 22px;
}

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

.pricing-card__currency {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-cyan);
  margin-right: 4px;
}

.pricing-card__amount {
  font-size: 2.85rem;
  font-weight: 900;
  color: var(--text-pure);
  letter-spacing: -0.04em;
}

.pricing-card__period {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 34px;
  flex-grow: 1;
}

.pricing-card__feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.pricing-card__feature-icon {
  color: var(--color-cyan);
  font-weight: bold;
  flex-shrink: 0;
}

/* ====================================================================
   FAQ 手风琴 (折叠过渡 & 发光边框)
   ==================================================================== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
}

.faq-item--active {
  border-color: var(--border-glow);
  box-shadow: 0 4px 20px -4px rgba(0, 242, 254, 0.15);
}

.faq-item__question {
  width: 100%;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-pure);
  cursor: pointer;
  text-align: left;
}

.faq-item__icon {
  width: 22px;
  height: 22px;
  transition: transform 0.25s ease;
  flex-shrink: 0;
  color: var(--color-cyan);
}

.faq-item--active .faq-item__icon {
  transform: rotate(180deg);
}

.faq-item__answer {
  display: none;
  padding: 0 26px 24px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

.faq-item--active .faq-item__answer {
  display: block;
}

/* ====================================================================
   Final CTA 模块 (深邃以太光环转化区)
   ==================================================================== */
.final-cta {
  padding: 80px 0;
  position: relative;
  text-align: center;
  background: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.08) 0%, transparent 70%);
}

.final-cta__inner {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  box-shadow: var(--shadow-neon-cyan);
  backdrop-filter: blur(16px);
}

.final-cta__title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.final-cta__desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 34px;
  line-height: 1.7;
}

/* ====================================================================
   页脚 Footer
   ==================================================================== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  padding: 52px 0 38px;
  margin-top: auto;
  position: relative;
  z-index: 10;
}

.site-footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text-pure);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.site-footer__nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.925rem;
  transition: color 0.2s ease;
}

.site-footer__nav-link:hover {
  color: var(--color-cyan);
}

.site-footer__disclosure {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}

.site-footer__disclaimer {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
}

/* ====================================================================
   移动端吸底 CTA 条
   ==================================================================== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(7, 19, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-glow);
  padding: 10px 18px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.mobile-bottom-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.mobile-bottom-bar__text {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-pure);
}

.mobile-bottom-bar__btn {
  flex-shrink: 0;
  padding: 9px 20px;
  font-size: 0.9rem;
}

.mobile-bottom-bar--visible {
  display: block;
}

/* ====================================================================
   面包屑与文章容器样式
   ==================================================================== */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.breadcrumb-nav a {
  text-decoration: none;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.breadcrumb-nav a:hover {
  color: var(--color-cyan);
}

.breadcrumb-nav__sep {
  color: var(--text-muted);
}

.article-container, .legal-card {
  max-width: 860px;
  margin: 40px auto 72px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.article-header, .legal-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 24px;
  margin-bottom: 34px;
}

.article-title, .legal-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-pure);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.article-meta, .legal-date {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-lead {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-main);
  background: rgba(0, 242, 254, 0.05);
  border-left: 4px solid var(--color-cyan);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 34px;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-content h2, .legal-section h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-pure);
  margin: 38px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-cyan);
  margin: 26px 0 12px;
}

.article-content p, .legal-section p {
  margin-bottom: 20px;
}

.article-content ul, .article-content ol, .legal-section ul {
  margin: 16px 0 22px 24px;
}

.article-content li, .legal-section li {
  margin-bottom: 10px;
}

.article-content a {
  color: var(--color-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.15s ease;
}

.article-content a:hover {
  color: var(--color-blue);
}

.article-faq {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
}

.article-faq__title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 20px;
}

.article-faq__item {
  margin-bottom: 20px;
  padding: 18px 22px;
  background: rgba(9, 21, 35, 0.65);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-cyan);
}

.article-faq__q {
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 8px;
  font-size: 1.025rem;
}

.article-faq__a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

.article-cta-box {
  margin-top: 44px;
  padding: 34px;
  background: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.12) 0%, rgba(9, 23, 38, 0.85) 100%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.2);
}

.article-cta-box__title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 10px;
}

.article-cta-box__desc {
  font-size: 0.975rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.article-related {
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1px solid var(--border-subtle);
}

.article-related__title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 16px;
}

.article-related__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-related__item a {
  color: var(--color-cyan);
  text-decoration: none;
  font-size: 0.975rem;
  font-weight: 600;
  transition: all 0.15s ease;
}

.article-related__item a:hover {
  color: var(--text-pure);
  padding-left: 4px;
}

/* 指南汇总网格卡片 */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-top: 38px;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.guide-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 25px -8px rgba(0, 242, 254, 0.25);
  transform: translateY(-3px);
}

.guide-card__meta {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.guide-card__title {
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 14px;
}

.guide-card__title a {
  text-decoration: none;
  color: var(--text-pure);
  transition: color 0.15s ease;
}

.guide-card__title a:hover {
  color: var(--color-cyan);
}

.guide-card__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 22px;
  flex-grow: 1;
}

.guide-card__link {
  text-decoration: none;
  color: var(--color-cyan);
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.guide-card__link:hover {
  color: var(--text-pure);
}

/* 网站地图列表 */
.sitemap-group {
  margin-bottom: 40px;
}

.sitemap-group h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.sitemap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sitemap-item a {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-cyan);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 4px;
}

.sitemap-item a:hover {
  text-decoration: underline;
}

.sitemap-item p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ====================================================================
   动画与无障碍适配 (prefers-reduced-motion)
   ==================================================================== */
@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;
  }
  .firefly, .meteor {
    display: none !important;
  }
  .anime-mascot-img, .anime-mascot-rune-ring {
    animation: none !important;
  }
}

/* ====================================================================
   响应式断点适配
   ==================================================================== */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 46px;
    text-align: center;
  }

  .hero__desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__specs {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
  }

  .hero__mascot-stage {
    max-width: 440px;
    margin: 0 auto;
  }

  .console-body {
    grid-template-columns: 1fr;
  }

  .features-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .pricing-card--popular {
    transform: none;
  }

  .pricing-card--popular:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(7, 19, 30, 0.98);
    border-bottom: 1px solid var(--border-glow);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.7);
  }

  .site-nav--open {
    display: flex;
  }

  .site-header__menu-btn {
    display: block;
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .hero__desc {
    font-size: 1rem;
  }

  .hero__specs {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-grid--4 {
    grid-template-columns: 1fr;
  }

  .support-dual {
    grid-template-columns: 1fr;
  }

  .scenarios-grid {
    grid-template-columns: 1fr;
  }

  .guides-grid {
    grid-template-columns: 1fr;
  }

  .article-container, .legal-card {
    padding: 28px 20px;
    margin: 20px auto 50px;
  }

  .article-title, .legal-title {
    font-size: 1.75rem;
  }

  .site-footer__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 22px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}