/* ============================================================
   喵团传媒 — 亮色主题官网样式
   ============================================================ */

/* ── 全局变量 ────────────────────────────────────────────── */
:root {
  --bg-primary: #F8F9FF;
  --bg-secondary: #EFF1FB;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F3F1FF;

  --primary: #6B5CE7;
  --primary-dim: rgba(107, 92, 231, 0.1);
  --primary-glow: rgba(107, 92, 231, 0.25);
  --accent: #FF6B35;
  --accent-dim: rgba(255, 107, 53, 0.1);
  --green: #10b981;
  --pink: #EC4899;

  --text-primary: #1A1F36;
  --text-secondary: #4A5568;
  --text-muted: #9AA5B4;

  --border: rgba(0, 0, 0, 0.08);
  --border-bright: rgba(107, 92, 231, 0.3);

  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 2px 20px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 40px rgba(107, 92, 231, 0.15);
  --shadow-glow: 0 0 40px rgba(107, 92, 231, 0.12);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
input, textarea, button { font-family: inherit; }

/* ── 粒子画布 ────────────────────────────────────────────── */
#particle-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

/* ── 容器 ────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
  position: relative;
  z-index: 1;
}

/* ── 导航栏 ──────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(248, 249, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 48px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.logo-bracket { color: var(--primary); }
.logo-text { color: var(--text-primary); }

.nav-links {
  display: flex;
  gap: 32px;
  flex: 1;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  margin-left: auto;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(107, 92, 231, 0.3);
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(107, 92, 231, 0.4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Section 标题通用 ────────────────────────────────────── */
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  opacity: 0.8;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 64px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── 按钮 ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 4px 20px rgba(107, 92, 231, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 36px rgba(107, 92, 231, 0.45);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-bright);
}

.btn-ghost:hover {
  color: var(--primary);
  background: var(--primary-dim);
  border-color: var(--primary);
}

.btn-full { width: 100%; justify-content: center; }

/* ── Hero 区域 ───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding: 140px 80px 80px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(107, 92, 231, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 92, 231, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(107, 92, 231, 0.08);
  border: 1px solid rgba(107, 92, 231, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 28px;
  font-weight: 500;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: slideUp 0.8s ease forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
  opacity: 0;
  animation: slideUp 0.8s ease 0.8s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
  opacity: 0;
  animation: slideUp 0.8s ease 1s forwards;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 0;
  opacity: 0;
  animation: slideUp 0.8s ease 1.2s forwards;
}

.metric { text-align: center; padding: 0 32px; }
.metric:first-child { padding-left: 0; }

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-unit {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--primary);
  font-weight: 600;
}

.metric-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.05em;
}

.metric-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── Hero 视觉 ───────────────────────────────────────────── */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 500px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
}

.orb-1 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(107,92,231,0.22), transparent 70%);
  top: 10%; left: 10%;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-2 {
  width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(255,107,53,0.18), transparent 70%);
  bottom: 10%; right: 10%;
  animation: orbFloat 10s ease-in-out infinite reverse;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.cube-wrapper {
  perspective: 600px;
  width: 120px;
  height: 120px;
  position: relative;
  z-index: 2;
}

.cube {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  animation: rotateCube 12s linear infinite;
}

@keyframes rotateCube {
  from { transform: rotateX(20deg) rotateY(0deg); }
  to { transform: rotateX(20deg) rotateY(360deg); }
}

.cube-face {
  position: absolute;
  width: 120px;
  height: 120px;
  border: 1.5px solid rgba(107, 92, 231, 0.45);
  background: rgba(107, 92, 231, 0.05);
  backdrop-filter: blur(2px);
}

.cube-face.front  { transform: translateZ(60px); }
.cube-face.back   { transform: translateZ(-60px) rotateY(180deg); }
.cube-face.left   { transform: translateX(-60px) rotateY(-90deg); }
.cube-face.right  { transform: translateX(60px) rotateY(90deg); }
.cube-face.top    { transform: translateY(-60px) rotateX(90deg); }
.cube-face.bottom { transform: translateY(60px) rotateX(-90deg); }

.tech-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(107, 92, 231, 0.15);
  pointer-events: none;
}

.ring-1 {
  width: 220px; height: 220px;
  animation: spinRing 15s linear infinite;
  border-style: dashed;
}

.ring-2 {
  width: 320px; height: 320px;
  animation: spinRing 25s linear infinite reverse;
  border-color: rgba(255, 107, 53, 0.12);
}

.ring-3 {
  width: 420px; height: 420px;
  animation: spinRing 35s linear infinite;
  border-color: rgba(107, 92, 231, 0.07);
}

@keyframes spinRing {
  to { transform: rotate(360deg); }
}

/* ── 平台滚动条 ───────────────────────────────────────────── */
.partners {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  z-index: 1;
  background: var(--bg-card);
}

.partners-label {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.partners-track {
  overflow: hidden;
}

.partners-inner {
  display: flex;
  gap: 60px;
  white-space: nowrap;
  animation: marquee 25s linear infinite;
  width: max-content;
}

.partners-inner span {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  opacity: 0.7;
  transition: opacity var(--transition);
  font-weight: 500;
}

.partners-inner span:hover { opacity: 1; color: var(--primary); }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── 关于我们 ────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.9;
  font-size: 0.95rem;
}

.about-text strong { color: var(--primary); font-weight: 600; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.tag {
  padding: 6px 14px;
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--primary-dim);
  font-weight: 500;
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.info-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.info-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-dim);
  border: 1px solid rgba(107, 92, 231, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card-icon svg { width: 22px; height: 22px; color: var(--primary); }

.info-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.info-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── 新媒体服务 ──────────────────────────────────────────── */
.services { background: var(--bg-secondary); }

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

.services-grid .service-card:first-child {
  grid-column: 1 / -1;
  display: block;
}

.service-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(107,92,231,0.04), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover { border-color: var(--border-bright); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.service-card:hover::before { opacity: 1; }

.service-card.featured {
  border-color: rgba(107, 92, 231, 0.2);
  background: linear-gradient(135deg, rgba(107,92,231,0.04), rgba(255,107,53,0.03));
}

.service-badge {
  display: inline-flex;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-dim);
  border: 1px solid rgba(107, 92, 231, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 20px;
}

.service-icon svg { width: 28px; height: 28px; color: var(--primary); }

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.service-features li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.service-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

.service-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  transition: color var(--transition);
}

.service-link:hover { color: var(--accent); }

/* ── 软件项目 ────────────────────────────────────────────── */
.software { background: var(--bg-primary); }

.software-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.sw-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-card);
}

.sw-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.sw-card.featured {
  border-color: rgba(107, 92, 231, 0.2);
  background: linear-gradient(135deg, rgba(107,92,231,0.04), rgba(255,107,53,0.03));
}

.sw-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.3;
  margin-bottom: 16px;
  line-height: 1;
}

.sw-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-dim);
  border: 1px solid rgba(107, 92, 231, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.sw-icon svg { width: 26px; height: 26px; color: var(--primary); }

.sw-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.sw-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.sw-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sw-tags span {
  padding: 4px 12px;
  background: var(--primary-dim);
  border: 1px solid rgba(107, 92, 231, 0.15);
  border-radius: 100px;
  font-size: 0.73rem;
  color: var(--primary);
  font-weight: 500;
}

/* ── 数据统计 ────────────────────────────────────────────── */
.stats { position: relative; overflow: hidden; background: var(--bg-secondary); }

.stats-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(107,92,231,0.07) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(255,107,53,0.07) 0%, transparent 60%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-bottom: 80px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.stat-item {
  padding: 48px 32px;
  background: var(--bg-card);
  text-align: center;
  transition: background var(--transition);
  border-right: 1px solid var(--border);
}

.stat-item:last-child { border-right: none; }
.stat-item:hover { background: var(--bg-card-hover); }

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.stat-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  max-width: 80px;
  margin: 0 auto;
}

.stat-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-stack { text-align: center; }

.tech-stack-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tech-tags span {
  padding: 8px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: var(--transition);
  box-shadow: 0 1px 6px rgba(0,0,0,0.04);
}

.tech-tags span:hover {
  border-color: var(--border-bright);
  color: var(--primary);
  background: var(--primary-dim);
}

/* ── 联系我们 ────────────────────────────────────────────── */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 8px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item div { display: flex; flex-direction: column; gap: 4px; }

.contact-item strong {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-item span {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(107, 92, 231, 0.1);
  background: var(--bg-card);
}

/* ── 页脚 ─────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  position: relative;
  z-index: 1;
  background: var(--bg-card);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h5 {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a { color: var(--text-muted); transition: color var(--transition); }
.footer-legal a:hover { color: var(--primary); }

/* ── 滚动动画 ────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 响应式 ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 140px 40px 80px;
    text-align: center;
  }

  .hero-visual { display: none; }
  .hero-metrics { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-desc { margin: 0 auto 36px; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid .stat-item:nth-child(2) { border-right: none; }

  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
  .services-grid .service-card:first-child {
    grid-column: 1 / -1;
    display: block;
  }

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

@media (max-width: 768px) {
  .section { padding: 80px 0; }

  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(248, 249, 255, 0.98);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  }

  .hero { padding: 120px 24px 60px; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }

  .software-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stats-grid .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .section-title { margin-bottom: 40px; }
}

/* ============================================================
   多页扩展样式
   ============================================================ */

/* ── 内页 Banner ─────────────────────────────────────────── */
.page-banner {
  padding: 150px 0 64px;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(107, 92, 231, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 92, 231, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.page-banner .orb-banner {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.page-banner .orb-banner-1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(107,92,231,0.12), transparent 70%);
  top: -100px; right: 5%;
}

.page-banner .orb-banner-2 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,107,53,0.1), transparent 70%);
  bottom: -80px; left: 10%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-family: var(--font-mono);
}

.breadcrumb a {
  color: var(--primary);
  transition: color var(--transition);
}

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

.page-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.1;
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ── 主页概览卡片 ─────────────────────────────────────────── */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.overview-card {
  display: flex;
  flex-direction: column;
  padding: 36px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  color: inherit;
}

.overview-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.overview-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.overview-card:hover::after { transform: scaleX(1); }

.overview-card.featured {
  border-color: rgba(107, 92, 231, 0.2);
  background: linear-gradient(160deg, rgba(107,92,231,0.04), rgba(255,107,53,0.03));
}

.ov-badge {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

.ov-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-dim);
  border: 1px solid rgba(107, 92, 231, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.ov-icon svg { width: 30px; height: 30px; color: var(--primary); }

.overview-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.overview-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
  flex: 1;
}

.ov-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
}

.ov-features li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.ov-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

.ov-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 600;
  margin-top: auto;
  transition: color var(--transition), gap var(--transition);
}

.overview-card:hover .ov-link {
  color: var(--accent);
  gap: 10px;
}

/* ── 主页快速统计行 ───────────────────────────────────────── */
.quick-stats { background: var(--bg-secondary); }

.quick-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border);
  box-shadow: var(--shadow-card);
}

.qs-item {
  padding: 40px 24px;
  background: var(--bg-card);
  text-align: center;
  transition: background var(--transition);
}

.qs-item:hover { background: var(--bg-card-hover); }

.qs-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  display: block;
}

.qs-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── CTA 区块 ────────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #9B4FE8 50%, var(--accent) 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.cta-section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-section p {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-white {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ── 服务流程步骤 ─────────────────────────────────────────── */
.process-section { background: var(--bg-secondary); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 0;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 39px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
  opacity: 0.4;
}

.process-step {
  text-align: center;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 4px 20px rgba(107,92,231,0.3);
}

.process-step h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── 平台/能力标签网格 ────────────────────────────────────── */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.platform-card {
  padding: 24px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.platform-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.platform-card .p-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  display: block;
}

.platform-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.platform-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── 响应式补充 ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-grid::before { display: none; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .overview-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-stats-row { grid-template-columns: repeat(2, 1fr); }
  .page-banner { padding: 120px 0 40px; }
  .cta-section { padding: 60px 0; }
}