/* ============================================
   1024xp核基地 · 设计系统 style.css
   暗夜霓虹科技风 · Neon Core Tech Aesthetic
   ============================================ */

/* ---------- 字体加载 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Sora:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@400;500;700;900&family=JetBrains+Mono:wght@400;600&display=swap');

/* ---------- CSS 变量 ---------- */
:root {
  /* 背景层 */
  --bg-void: #050510;
  --bg-deep: #08081a;
  --bg: #0d0d22;
  --bg-elev: #141430;
  --bg-card: #12122b;
  --bg-card-2: #181838;

  /* 边框 */
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --border-glow: rgba(0, 229, 255, 0.35);

  /* 文字 */
  --text: #f4f4fb;
  --text-dim: #a6a6c4;
  --text-mute: #6c6c8c;

  /* 强调色 · 核能光谱 */
  --cyan: #00e5ff;       /* 主 · 核能青 */
  --cyan-soft: rgba(0, 229, 255, 0.12);
  --purple: #a855f7;     /* 副 · 能量紫 */
  --purple-soft: rgba(168, 85, 247, 0.14);
  --pink: #ff4d8d;       /* 活力粉 */
  --pink-soft: rgba(255, 77, 141, 0.13);
  --gold: #ffc53d;       /* 暖黄点缀 */
  --green: #2ee6a8;      /* 成功/在线 */

  /* 渐变 */
  --grad-main: linear-gradient(135deg, #00e5ff 0%, #a855f7 50%, #ff4d8d 100%);
  --grad-cyan: linear-gradient(135deg, #00e5ff, #22a7ff);
  --grad-purple: linear-gradient(135deg, #a855f7, #ff4d8d);
  --grad-deep: linear-gradient(180deg, #0d0d22 0%, #08081a 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.55);
  --shadow-glow-cyan: 0 0 40px rgba(0, 229, 255, 0.25);
  --shadow-glow-purple: 0 0 40px rgba(168, 85, 247, 0.25);

  /* 圆角 */
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* 布局 */
  --nav-h: 68px;
  --maxw: 1240px;
  --gut: clamp(20px, 4vw, 48px);

  /* 动效 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 0.4s;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Sora', 'Noto Sans SC', system-ui, sans-serif;
  background: var(--bg-void);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  min-height: 100vh;
}

/* 全局氛围背景：径向光晕 + 噪点 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(0, 229, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 10%, rgba(168, 85, 247, 0.10), transparent 60%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(255, 77, 141, 0.07), transparent 60%),
    var(--bg-void);
  pointer-events: none;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  mix-blend-mode: overlay;
}

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

/* ---------- 排版 ---------- */
h1, h2, h3, h4 { line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; }
.display {
  font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
  font-weight: 900;
  letter-spacing: 0.02em;
}
.mono { font-family: 'JetBrains Mono', monospace; }
.gradient-text {
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gut);
}
section { position: relative; padding-block: clamp(64px, 9vw, 120px); }

/* ---------- 导航栏 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--t) var(--ease), border-color var(--t), backdrop-filter var(--t);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 8, 26, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: var(--border);
}
.nav-inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gut);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--grad-main);
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: var(--shadow-glow-cyan);
  animation: spin-slow 12s linear infinite;
}
.logo-mark svg { width: 22px; height: 22px; }
.logo-mark::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 12px;
  border: 1px solid rgba(0, 229, 255, 0.3);
  animation: pulse-ring 2.4s var(--ease) infinite;
}
.logo span b { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dim);
  border-radius: var(--r-pill);
  transition: color var(--t), background var(--t);
  position: relative;
}
.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav-links a.active {
  color: var(--cyan);
  background: var(--cyan-soft);
}

.nav-cta { display: flex; align-items: center; gap: 10px; }

/* 汉堡菜单 */
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: var(--t) var(--ease);
}
.nav-toggle span::before { transform: translate(-50%, -7px); }
.nav-toggle span::after { transform: translate(-50%, 7px); }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translate(-50%, 0) rotate(45deg); }
.nav-toggle.open span::after { transform: translate(-50%, 0) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: 'Sora', 'Noto Sans SC', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--r-pill);
  transition: transform var(--t) var(--ease), box-shadow var(--t), background var(--t);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--grad-main);
  color: #060614;
  box-shadow: 0 8px 28px rgba(0, 229, 255, 0.3), inset 0 1px 0 rgba(255,255,255,0.25);
}
.btn-primary:hover { box-shadow: 0 12px 40px rgba(168, 85, 247, 0.45); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-soft); }

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--border-glow);
}
.btn-outline:hover { background: var(--cyan-soft); box-shadow: var(--shadow-glow-cyan); }

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- 通用组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  background: var(--cyan-soft);
  border: 1px solid rgba(0, 229, 255, 0.2);
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: blink 1.6s ease-in-out infinite;
}

.section-head { max-width: 680px; margin-bottom: clamp(36px, 5vw, 60px); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-title {
  font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
  font-weight: 800;
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  margin-top: 18px;
}
.section-sub {
  margin-top: 16px;
  color: var(--text-dim);
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
}

/* 卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--t) var(--ease), border-color var(--t), box-shadow var(--t);
  position: relative;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
  border: 1px solid var(--border);
}
.tag-hot { background: var(--pink-soft); color: var(--pink); border-color: rgba(255,77,141,0.3); }
.tag-new { background: var(--cyan-soft); color: var(--cyan); border-color: rgba(0,229,255,0.3); }
.tag-ai { background: var(--purple-soft); color: var(--purple); border-color: rgba(168,85,247,0.3); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}
#particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
}
.hero-glow.g1 { width: 480px; height: 480px; background: var(--cyan); top: -100px; left: -100px; }
.hero-glow.g2 { width: 520px; height: 520px; background: var(--purple); bottom: -150px; right: -120px; }
.hero-glow.g3 { width: 360px; height: 360px; background: var(--pink); top: 30%; right: 30%; opacity: 0.25; }

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 8px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 28px;
}
.hero-badge b { color: var(--green); }
.hero-badge .dot {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(46, 230, 168, 0.15);
  display: grid;
  place-items: center;
  font-size: 0.7rem;
}
.hero h1 {
  font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
  font-weight: 900;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.hero h1 .line { display: block; }
.hero-lead {
  margin-top: 26px;
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  color: var(--text-dim);
  max-width: 540px;
}
.hero-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-stats {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
}
.hero-stat .num {
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stat .lbl { font-size: 0.82rem; color: var(--text-mute); margin-top: 4px; }

/* Hero 视觉装置：核心反应堆 */
.reactor {
  position: relative;
  aspect-ratio: 1;
  max-width: 460px;
  margin-inline: auto;
  width: 100%;
}
.reactor-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
}
.reactor-ring.r1 { animation: spin-slow 30s linear infinite; border-style: dashed; border-color: rgba(0,229,255,0.2); }
.reactor-ring.r2 { inset: 12%; animation: spin-slow 20s linear infinite reverse; border-color: rgba(168,85,247,0.25); }
.reactor-ring.r3 { inset: 24%; animation: spin-slow 14s linear infinite; border-style: dashed; border-color: rgba(255,77,141,0.2); }
.reactor-core {
  position: absolute;
  inset: 32%;
  border-radius: 50%;
  background: var(--grad-main);
  box-shadow: 0 0 60px rgba(0,229,255,0.5), inset 0 0 30px rgba(0,0,0,0.3);
  display: grid;
  place-items: center;
  animation: pulse-core 3s var(--ease) infinite;
}
.reactor-core svg { width: 45%; height: 45%; color: #060614; }
.reactor-orbit {
  position: absolute;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
  top: 50%; left: 50%;
  margin: -7px;
}
.reactor-orbit.o1 { animation: orbit 8s linear infinite; }
.reactor-orbit.o2 { background: var(--pink); box-shadow: 0 0 16px var(--pink); animation: orbit 12s linear infinite reverse; }
.reactor-orbit.o3 { background: var(--purple); box-shadow: 0 0 16px var(--purple); animation: orbit 16s linear infinite; }

/* ---------- 数据条 ---------- */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.stat-bar .item {
  background: var(--bg-elev);
  padding: clamp(24px, 3vw, 40px) clamp(16px, 2vw, 28px);
  text-align: center;
  transition: background var(--t);
}
.stat-bar .item:hover { background: var(--bg-card-2); }
.stat-bar .num {
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  color: var(--text);
}
.stat-bar .num .unit { font-size: 0.5em; color: var(--cyan); }
.stat-bar .lbl { font-size: 0.85rem; color: var(--text-mute); margin-top: 6px; }

/* ---------- 短剧卡片网格 ---------- */
.drama-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(16px, 2vw, 26px);
}
.drama-card {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t), box-shadow var(--t);
  cursor: pointer;
  position: relative;
}
.drama-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}
.drama-thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}
.drama-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(8,8,26,0.95));
}
.drama-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.drama-card:hover .drama-thumb img { transform: scale(1.08); }
.drama-thumb .badge {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
}
.drama-thumb .play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--t);
}
.drama-card:hover .play { opacity: 1; }
.drama-play-btn {
  width: 58px; height: 58px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.95);
  display: grid;
  place-items: center;
  color: #060614;
  box-shadow: 0 0 30px rgba(0,229,255,0.6);
  transform: scale(0.8);
  transition: transform var(--t) var(--ease);
}
.drama-card:hover .drama-play-btn { transform: scale(1); }
.drama-play-btn svg { width: 24px; height: 24px; margin-left: 3px; }
.drama-meta {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  padding: 16px;
}
.drama-title {
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.3;
}
.drama-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.drama-info span { display: inline-flex; align-items: center; gap: 4px; }
.drama-info svg { width: 13px; height: 13px; }

/* ---------- 特色服务卡片 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(16px, 2vw, 24px);
}
.feature {
  padding: clamp(28px, 3.5vw, 40px);
  border-radius: var(--r-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t);
  position: relative;
  overflow: hidden;
}
.feature::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t) var(--ease);
}
.feature:hover { transform: translateY(-6px); border-color: var(--border-glow); }
.feature:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  position: relative;
}
.feature-icon svg { width: 28px; height: 28px; }
.feature-icon.c1 { background: var(--cyan-soft); color: var(--cyan); }
.feature-icon.c2 { background: var(--purple-soft); color: var(--purple); }
.feature-icon.c3 { background: var(--pink-soft); color: var(--pink); }
.feature-icon.c4 { background: rgba(255,197,61,0.14); color: var(--gold); }
.feature h3 { font-size: 1.2rem; margin-bottom: 10px; }
.feature p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- 短视频瀑布流 ---------- */
.shorts-grid {
  columns: 3;
  column-gap: clamp(12px, 1.6vw, 20px);
}
.short-card {
  break-inside: avoid;
  margin-bottom: clamp(12px, 1.6vw, 20px);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--t) var(--ease), border-color var(--t);
  position: relative;
  display: block;
}
.short-card:hover { transform: scale(1.02); border-color: var(--border-glow); }
.short-card img { width: 100%; display: block; }
.short-overlay {
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.short-title { font-size: 0.92rem; font-weight: 600; line-height: 1.3; }
.short-actions { display: flex; gap: 10px; flex-shrink: 0; }
.short-actions button {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--text-mute);
  padding: 4px 8px;
  border-radius: var(--r-sm);
  transition: color var(--t), background var(--t);
}
.short-actions button:hover { color: var(--pink); background: var(--pink-soft); }
.short-actions button svg { width: 14px; height: 14px; }

/* ---------- 步骤/流程 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(16px, 2vw, 28px);
}
.step {
  padding: clamp(24px, 3vw, 36px);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-deep) 100%);
  border: 1px solid var(--border);
  position: relative;
}
.step-num {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.6rem;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.step h4 { font-size: 1.1rem; margin: 14px 0 8px; }
.step p { color: var(--text-dim); font-size: 0.9rem; }

/* ---------- CTA 区 ---------- */
.cta-band {
  position: relative;
  border-radius: var(--r-xl);
  padding: clamp(40px, 6vw, 80px);
  text-align: center;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0,229,255,0.12), rgba(168,85,247,0.12), rgba(255,77,141,0.12));
  border: 1px solid var(--border-strong);
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(0,229,255,0.15), transparent 60%);
  pointer-events: none;
}
.cta-band h2 {
  font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
  font-weight: 800;
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  position: relative;
}
.cta-band p { color: var(--text-dim); margin-top: 14px; position: relative; }
.cta-band .hero-actions { justify-content: center; position: relative; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: 32px;
  background: var(--bg-deep);
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand p { color: var(--text-dim); font-size: 0.9rem; max-width: 320px; }
.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  color: var(--text-dim);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: color var(--t), transform var(--t);
}
.footer-col a:hover { color: var(--cyan); transform: translateX(4px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  color: var(--text-mute);
  font-size: 0.84rem;
}
.footer-bottom .links { display: flex; gap: 20px; }
.footer-bottom .links a:hover { color: var(--cyan); }
.social { display: flex; gap: 10px; margin-top: 18px; }
.social a {
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  color: var(--text-dim);
  transition: var(--t);
}
.social a:hover { color: var(--cyan); border-color: var(--cyan); background: var(--cyan-soft); transform: translateY(-3px); }
.social a svg { width: 18px; height: 18px; }

/* ---------- 播放页视频播放器 ---------- */
.player-wrap {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border-strong);
  position: relative;
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow-lg);
}
.player-wrap video { width: 100%; height: 100%; object-fit: cover; }
.player-mock {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #0a0a1f, #141430);
}
.play-big {
  width: 84px; height: 84px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.95);
  display: grid;
  place-items: center;
  color: #060614;
  box-shadow: 0 0 50px rgba(0,229,255,0.6);
  transition: transform var(--t) var(--ease);
  cursor: pointer;
}
.play-big:hover { transform: scale(1.1); }
.play-big svg { width: 34px; height: 34px; margin-left: 4px; }
.player-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  display: flex;
  align-items: center;
  gap: 16px;
}
.player-bar .time { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; color: rgba(255,255,255,0.8); }
.player-bar .progress {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.2);
  position: relative;
  cursor: pointer;
}
.player-bar .progress::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 32%;
  border-radius: 2px;
  background: var(--grad-cyan);
}

/* 视频信息 */
.video-info { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.video-title { font-family: 'Orbitron','Noto Sans SC',sans-serif; font-weight: 800; font-size: clamp(1.3rem, 2.6vw, 2rem); }
.video-meta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; color: var(--text-dim); font-size: 0.9rem; }
.video-meta span { display: inline-flex; align-items: center; gap: 6px; }
.video-meta svg { width: 15px; height: 15px; }

/* 筛选标签 */
.filter-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.chip {
  padding: 9px 18px;
  border-radius: var(--r-pill);
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: var(--t);
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.active {
  background: var(--grad-cyan);
  color: #060614;
  border-color: transparent;
  font-weight: 600;
}

/* ---------- 下载页 ---------- */
.dl-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.phone-mock {
  width: 100%;
  max-width: 320px;
  margin-inline: auto;
  aspect-ratio: 9 / 19;
  border-radius: 42px;
  background: var(--bg-elev);
  border: 8px solid #1a1a35;
  box-shadow: var(--shadow-lg), inset 0 0 0 2px var(--border-strong);
  position: relative;
  overflow: hidden;
}
.phone-notch {
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  width: 90px; height: 26px;
  background: #000;
  border-radius: 0 0 16px 16px;
  z-index: 3;
}
.phone-screen {
  position: absolute;
  inset: 0;
  padding: 44px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: radial-gradient(circle at 50% 0%, rgba(0,229,255,0.15), transparent 60%), var(--bg-deep);
}
.phone-appbar { display: flex; align-items: center; gap: 8px; font-family: 'Orbitron',sans-serif; font-weight: 700; font-size: 0.85rem; }
.phone-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--r-pill);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-mute);
}
.phone-search svg { width: 14px; height: 14px; }
.phone-story { display: flex; gap: 8px; overflow: hidden; }
.phone-story .ps {
  width: 56px; height: 76px;
  border-radius: 14px;
  flex-shrink: 0;
  background: var(--grad-main);
  display: grid;
  place-items: center;
  font-size: 0.6rem;
  color: #060614;
  font-weight: 700;
}
.phone-feed { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.phone-feed .pf {
  height: 120px;
  border-radius: 14px;
  background: var(--grad-purple);
  position: relative;
  overflow: hidden;
}
.phone-feed .pf::after { content: '▶'; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 1.4rem; color: rgba(255,255,255,0.8); }

.store-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: var(--r);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-strong);
  transition: var(--t);
}
.store-btn:hover { border-color: var(--cyan); background: var(--cyan-soft); transform: translateY(-2px); }
.store-btn svg { width: 28px; height: 28px; }
.store-btn .st-small { font-size: 0.7rem; color: var(--text-mute); }
.store-btn .st-big { font-size: 1.05rem; font-weight: 700; }

/* 功能特性列表 */
.feat-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 16px; }
.feat-item {
  display: flex;
  gap: 16px;
  padding: 24px;
  border-radius: var(--r);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--t);
}
.feat-item:hover { border-color: var(--border-glow); transform: translateX(4px); }
.feat-item .fi-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--cyan-soft);
  color: var(--cyan);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.feat-item .fi-icon svg { width: 22px; height: 22px; }
.feat-item h4 { font-size: 1rem; margin-bottom: 4px; }
.feat-item p { color: var(--text-dim); font-size: 0.85rem; }

/* FAQ */
.faq-item {
  border-radius: var(--r);
  background: var(--bg-card);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--t);
}
.faq-item.open { border-color: var(--border-glow); }
.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-weight: 600;
  font-size: 0.98rem;
}
.faq-q .icon {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--cyan-soft);
  color: var(--cyan);
  display: grid; place-items: center;
  flex-shrink: 0;
  transition: transform var(--t);
  font-size: 1.2rem;
}
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t) var(--ease), padding var(--t);
  color: var(--text-dim);
  font-size: 0.92rem;
}
.faq-item.open .faq-a { max-height: 240px; padding: 0 24px 22px; }

/* ---------- 关于页 ---------- */
.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.value-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 20px; }
.value-card {
  padding: 32px;
  border-radius: var(--r-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.value-card .v-num {
  font-family: 'Orbitron',sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.1em;
}
.value-card h4 { font-size: 1.15rem; margin: 14px 0 10px; }
.value-card p { color: var(--text-dim); font-size: 0.9rem; }

/* 团队 */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 20px; }
.team-card {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--t);
}
.team-card:hover { transform: translateY(-6px); border-color: var(--border-glow); }
.team-avatar {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  font-family: 'Orbitron',sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  color: #060614;
}
.team-info { padding: 20px; }
.team-info h4 { font-size: 1.05rem; }
.team-info .role { color: var(--cyan); font-size: 0.85rem; margin-top: 4px; }
.team-info p { color: var(--text-mute); font-size: 0.8rem; margin-top: 8px; }

/* ---------- 动画 ---------- */
@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.4); opacity: 0; }
}
@keyframes pulse-core {
  0%, 100% { transform: scale(1); box-shadow: 0 0 60px rgba(0,229,255,0.5); }
  50% { transform: scale(1.06); box-shadow: 0 0 80px rgba(168,85,247,0.6); }
}
@keyframes orbit {
  from { transform: rotate(0deg) translateX(calc(50vmin)); }
  to { transform: rotate(360deg) translateX(calc(50vmin)); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* 滚动渐入 */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .reactor { display: none; }
  .dl-hero { grid-template-columns: 1fr; }
  .phone-mock { max-width: 280px; }
  .about-hero-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .shorts-grid { columns: 2; }
}

@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px var(--gut) 24px;
    background: rgba(8,8,26,0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t) var(--ease), opacity var(--t);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 14px 16px; font-size: 1rem; }
  .nav-toggle { display: block; }
  .nav-cta .btn-ghost { display: none; }

  .stat-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .shorts-grid { columns: 1; }
  .hero-stats { gap: 24px; }
}

@media (max-width: 480px) {
  .hero-actions .btn { width: 100%; }
  .store-btns { flex-direction: column; }
  .store-btn { width: 100%; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}