/* ============================================
   有谦传媒 YOUQIAN - 主样式
   主题色：紫粉渐变（与PPT视觉风格统一）
   ============================================ */

:root {
  --color-primary: #8b5cf6;
  --color-primary-dark: #6d28d9;
  --color-pink: #ec4899;
  --color-blue: #6366f1;
  --color-purple-light: #c4b5fd;
  --color-bg: #ffffff;
  --color-bg-soft: #faf8ff;
  --color-bg-dark: #0f0a1f;
  --color-bg-darker: #0a0617;
  --color-text: #1a1625;
  --color-text-soft: #4a4458;
  --color-text-mute: #8b8499;
  --color-border: rgba(139, 92, 246, 0.12);
  --color-border-strong: rgba(139, 92, 246, 0.25);

  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --gradient-primary-soft: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(236, 72, 153, 0.12) 100%);
  --gradient-blue-purple: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --gradient-text: linear-gradient(135deg, #8b5cf6 0%, #ec4899 50%, #f97316 100%);

  --shadow-sm: 0 2px 8px rgba(139, 92, 246, 0.08);
  --shadow-md: 0 8px 24px rgba(139, 92, 246, 0.12);
  --shadow-lg: 0 20px 60px rgba(139, 92, 246, 0.18);
  --shadow-xl: 0 30px 90px rgba(139, 92, 246, 0.25);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --container: 1240px;
  --section-py: 120px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; transition: color 0.3s ease; }

em { font-style: normal; background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ============================================
   导航
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: all 0.4s ease;
}
.navbar.scrolled {
  padding: 14px 0;
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex; align-items: center; gap: 12px;
  font-weight: 700; font-size: 18px;
  flex-shrink: 0;
}
.logo-mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-primary);
  color: white; font-size: 20px; font-weight: 900;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.35);
}
.logo-text em { font-size: 11px; letter-spacing: 0.18em; margin-left: 4px; font-weight: 500; opacity: 0.7; }
.nav-links {
  display: flex; align-items: center; gap: 4px;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px; font-weight: 500;
  color: var(--color-text-soft);
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}
.nav-links a:not(.nav-cta):hover { color: var(--color-primary); background: var(--gradient-primary-soft); }
.nav-cta {
  background: var(--gradient-primary);
  color: white !important;
  padding: 10px 20px !important;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(139, 92, 246, 0.45); }

.nav-toggle {
  display: none;
  flex-direction: column; gap: 4px;
  width: 40px; height: 40px;
  background: transparent; border: none; cursor: pointer;
  padding: 10px; align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  background: var(--color-bg-soft);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 0;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: blob-float 20s ease-in-out infinite;
}
.blob-1 { width: 500px; height: 500px; background: var(--color-pink); top: -100px; right: -100px; }
.blob-2 { width: 600px; height: 600px; background: var(--color-primary); bottom: -200px; left: -150px; animation-delay: -5s; }
.blob-3 { width: 400px; height: 400px; background: var(--color-blue); top: 40%; left: 30%; animation-delay: -10s; opacity: 0.3; }
@keyframes blob-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(50px, -50px) scale(1.1); }
  66% { transform: translate(-30px, 30px) scale(0.95); }
}

.hero-container {
  position: relative; z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--color-border-strong);
  border-radius: 100px;
  font-size: 12px; font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.hero-title { font-family: 'Playfair Display', 'Noto Sans SC', serif; line-height: 1; margin-bottom: 24px; }
.hero-title-line {
  display: block;
  font-size: clamp(56px, 8vw, 96px);
  font-weight: 900;
  letter-spacing: -0.02em;
  background: var(--gradient-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.hero-title-sub {
  display: block;
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 500;
  color: var(--color-text-soft);
  letter-spacing: 0.3em;
  font-family: 'Playfair Display', serif;
}
.hero-tagline {
  font-size: 20px; font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.hero-desc {
  font-size: 16px;
  color: var(--color-text-soft);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.stat { text-align: left; }
.stat-num {
  font-size: 32px; font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  line-height: 1.2;
  margin-bottom: 4px;
  font-family: 'Playfair Display', serif;
}
.stat-label { font-size: 13px; color: var(--color-text-mute); }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  font-size: 15px; font-weight: 600;
  border-radius: 12px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}
.btn-primary { background: var(--gradient-primary); color: white; box-shadow: 0 8px 24px rgba(139, 92, 246, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(139, 92, 246, 0.5); }
.btn-ghost { background: white; color: var(--color-primary); border-color: var(--color-border-strong); }
.btn-ghost:hover { background: var(--gradient-primary-soft); transform: translateY(-2px); }
.btn-light { background: white; color: var(--color-primary); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn span { transition: transform 0.3s ease; }
.btn:hover span { transform: translateX(4px); }

.hero-visual {
  position: relative;
  height: 600px;
}
.hero-card {
  position: absolute;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: white;
}
.hero-card img { width: 100%; height: 100%; object-fit: cover; }
.hero-card-1 {
  width: 320px; height: 420px;
  top: 20px; right: 60px;
  transform: rotate(-6deg);
  z-index: 2;
  animation: float 8s ease-in-out infinite;
}
.hero-card-2 {
  width: 240px; height: 320px;
  top: 200px; right: 320px;
  transform: rotate(8deg);
  z-index: 3;
  animation: float 10s ease-in-out infinite;
  animation-delay: -3s;
}
.hero-card-3 {
  width: 180px; height: 180px;
  top: 30px; right: 380px;
  transform: rotate(12deg);
  z-index: 1;
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  animation: float 12s ease-in-out infinite;
  animation-delay: -6s;
}
.hero-card-3 img { width: 70%; height: 70%; object-fit: contain; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(var(--rot, -6deg)); }
  50% { transform: translateY(-20px) rotate(var(--rot, -6deg)); }
}

.floating-tag {
  position: absolute;
  padding: 8px 16px;
  background: white;
  border-radius: 100px;
  font-size: 13px; font-weight: 500;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  z-index: 4;
  animation: float 6s ease-in-out infinite;
}
.tag-1 { top: 60px; right: 0; animation-delay: -1s; }
.tag-2 { bottom: 120px; right: 0; animation-delay: -2.5s; }
.tag-3 { bottom: 40px; right: 280px; animation-delay: -4s; }

.scroll-hint {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--color-text-mute);
  font-size: 12px; letter-spacing: 0.2em;
  z-index: 1;
}
.scroll-hint span {
  width: 2px; height: 40px;
  background: var(--gradient-primary);
  border-radius: 1px;
  position: relative;
  overflow: hidden;
}
.scroll-hint span::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 50%;
  background: white;
  animation: scroll-down 2s ease-in-out infinite;
}
@keyframes scroll-down {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

/* ============================================
   通用 section
   ============================================ */
.section { padding: var(--section-py) 0; position: relative; }
.section-head { margin-bottom: 64px; }
.section-head.center { text-align: center; }
.section-kicker {
  display: inline-block;
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding: 6px 14px;
  background: var(--gradient-primary-soft);
  border-radius: 100px;
}
.section-kicker.light { color: #c4b5fd; background: rgba(139, 92, 246, 0.2); }
.section-title {
  font-family: 'Playfair Display', 'Noto Sans SC', serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: 16px;
}
.section-title.light { color: white; }
.section-sub { font-size: 17px; color: var(--color-text-soft); max-width: 600px; }
.section-head.center .section-sub { margin: 0 auto; }

/* ============================================
   About
   ============================================ */
.about { background: var(--color-bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-lead {
  font-size: 22px; line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 24px;
}
.about-lead strong { color: var(--color-primary); font-weight: 700; }
.about-lead em { font-weight: 600; }
.about-body { font-size: 16px; color: var(--color-text-soft); line-height: 1.9; margin-bottom: 40px; }
.about-timeline { border-left: 2px solid var(--color-border-strong); padding-left: 24px; }
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -32px; top: 4px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gradient-primary);
  box-shadow: 0 0 0 4px white, 0 0 0 6px rgba(139, 92, 246, 0.3);
}
.timeline-year {
  font-family: 'Playfair Display', serif;
  font-size: 22px; font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}
.timeline-text { color: var(--color-text-soft); font-size: 15px; }

.about-side { display: flex; flex-direction: column; gap: 20px; }
.about-card {
  padding: 28px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.4s ease;
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-border-strong); }
.about-card:hover::before { transform: scaleY(1); transform-origin: top; }
.about-card-num {
  font-family: 'Playfair Display', serif;
  font-size: 14px; font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.about-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.about-card p { color: var(--color-text-soft); font-size: 15px; }

/* ============================================
   Advantages
   ============================================ */
.advantages {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
  position: relative;
  overflow: hidden;
}
.advantages::before {
  content: '';
  position: absolute; top: 10%; right: -100px;
  width: 400px; height: 400px;
  background: var(--gradient-primary-soft);
  filter: blur(120px);
  border-radius: 50%;
  pointer-events: none;
}
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.advantage-card {
  padding: 36px 28px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 0.4s ease;
  position: relative;
}
.advantage-card.wide {
  grid-column: span 3;
  display: flex; align-items: center; gap: 28px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 32px 40px;
}
.advantage-card.wide h3 { color: white; margin-bottom: 4px; }
.advantage-card.wide p { color: rgba(255, 255, 255, 0.9); }
.advantage-card.wide .advantage-icon { background: rgba(255, 255, 255, 0.2); color: white; }
.advantage-card:not(.wide):hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}
.advantage-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-primary-soft);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  flex-shrink: 0;
}
.advantage-icon svg { width: 28px; height: 28px; }
.advantage-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.advantage-card p { color: var(--color-text-soft); font-size: 15px; line-height: 1.7; }

/* ============================================
   Business
   ============================================ */
.business { background: var(--color-bg); }
.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 80px;
}
.business-card {
  padding: 32px 24px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.business-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.business-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.business-card:hover::after { transform: scaleX(1); }
.business-tag {
  display: inline-block;
  font-family: 'Playfair Display', serif;
  font-size: 14px; font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  padding: 4px 10px;
  background: var(--gradient-primary-soft);
  border-radius: 6px;
}
.business-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.business-card p { color: var(--color-text-soft); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.business-list { list-style: none; }
.business-list li {
  padding: 6px 0 6px 20px;
  font-size: 14px; color: var(--color-text-soft);
  position: relative;
}
.business-list li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

.business-strength {
  padding: 48px;
  background: var(--gradient-primary-soft);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}
.business-strength h3 {
  font-size: 24px; font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: var(--color-text);
}
.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.strength-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: white;
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.strength-num {
  flex-shrink: 0;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700; font-size: 14px;
  font-family: 'Playfair Display', serif;
}
.strength-item p { font-size: 14px; line-height: 1.7; color: var(--color-text-soft); }
.strength-item p strong { color: var(--color-text); font-weight: 700; display: block; margin-bottom: 4px; }

/* ============================================
   Role (dark)
   ============================================ */
.role {
  background: var(--color-bg-darker);
  color: white;
  position: relative;
  overflow: hidden;
}
.role::before {
  content: '';
  position: absolute; top: -50%; left: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
  pointer-events: none;
}
.role::after {
  content: '';
  position: absolute; bottom: -50%; right: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.25) 0%, transparent 70%);
  pointer-events: none;
}
.role-header { text-align: center; margin-bottom: 64px; position: relative; z-index: 1; }
.role-tagline {
  font-size: 20px; color: rgba(255, 255, 255, 0.8);
  margin-top: 12px;
}
.role-tagline em { font-weight: 700; font-size: 28px; }

.role-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 32px;
  position: relative; z-index: 1;
}
.role-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.role-card h3 {
  font-size: 24px; font-weight: 700;
  color: white;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.role-list { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.role-list li, .role-solutions li {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}
.role-list li:hover, .role-solutions li:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateX(4px);
}
.role-num, .solution-num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: 10px;
  font-weight: 700; font-size: 14px;
  font-family: 'Playfair Display', serif;
}
.role-list h4, .role-solutions h4 {
  font-size: 17px; font-weight: 700;
  color: white;
  margin-bottom: 4px;
}
.role-list p, .role-solutions p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px; line-height: 1.6;
}
.role-solutions { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.role-solutions li:nth-child(5) { grid-column: span 2; }

/* ============================================
   Team
   ============================================ */
.team { background: var(--color-bg-soft); }
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}
.team-card {
  padding: 40px 32px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.team-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-card:hover::before { transform: scaleX(1); }
.team-emoji { font-size: 56px; margin-bottom: 20px; }
.team-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.team-card > p {
  color: var(--color-primary);
  font-size: 14px; font-weight: 500;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.team-list { list-style: none; text-align: left; }
.team-list li {
  padding: 10px 0;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-border);
  display: flex; align-items: center; gap: 8px;
}
.team-list li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
}

.team-strength { padding: 48px; background: white; border-radius: var(--radius-xl); border: 1px solid var(--color-border); }
.team-strength h3 { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 32px; }

/* ============================================
   Incubation
   ============================================ */
.incubation {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}
.incubation::before {
  content: '';
  position: absolute; bottom: -200px; left: -100px;
  width: 500px; height: 500px;
  background: var(--gradient-primary-soft);
  filter: blur(120px);
  border-radius: 50%;
  pointer-events: none;
}
.incubation-header { text-align: center; margin-bottom: 64px; position: relative; z-index: 1; }
.incubation-tagline {
  font-size: 20px; color: var(--color-text-soft);
  margin-top: 12px;
}
.incubation-tagline em { font-weight: 700; font-size: 28px; }

.incubation-flow {
  display: flex; align-items: stretch; justify-content: space-between;
  gap: 12px;
  margin-bottom: 80px;
  flex-wrap: wrap;
  position: relative; z-index: 1;
}
.flow-step {
  flex: 1; min-width: 180px;
  padding: 28px 20px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.4s ease;
}
.flow-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}
.flow-icon { font-size: 40px; margin-bottom: 12px; }
.flow-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.flow-step p { font-size: 13px; color: var(--color-text-soft); }
.flow-arrow {
  display: flex; align-items: center;
  font-size: 24px; color: var(--color-primary);
  font-weight: 700;
  padding: 0 4px;
}

.incubation-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative; z-index: 1;
}
.point-card {
  padding: 32px;
  background: var(--gradient-primary-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all 0.4s ease;
}
.point-card:hover { transform: translateY(-4px); background: white; box-shadow: var(--shadow-md); }
.point-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--color-primary); }
.point-card p { color: var(--color-text-soft); font-size: 15px; line-height: 1.7; }

/* ============================================
   Cases
   ============================================ */
.cases { background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  padding: 48px 32px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.case-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}
.case-card:hover::before { opacity: 1; }
.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); color: white; }
.case-card:hover .case-label, .case-card:hover .case-example { color: rgba(255, 255, 255, 0.9); }
.case-card > * { position: relative; z-index: 1; transition: color 0.3s ease; }
.case-num {
  font-family: 'Playfair Display', serif;
  font-size: 72px; font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 16px;
}
.case-card:hover .case-num { color: white; -webkit-text-fill-color: white; background: none; }
.case-label { font-size: 16px; font-weight: 600; margin-bottom: 12px; color: var(--color-text); }
.case-example { font-size: 14px; color: var(--color-text-mute); }

/* ============================================
   Contact
   ============================================ */
.contact {
  background: var(--color-bg);
  padding-bottom: 80px;
}
.contact-card {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  background: var(--gradient-blue-purple);
  border-radius: var(--radius-xl);
  overflow: hidden;
  color: white;
  position: relative;
}
.contact-content { padding: 64px; position: relative; z-index: 1; }
.contact-title {
  font-family: 'Playfair Display', 'Noto Sans SC', serif;
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  margin: 16px 0 20px;
  color: white;
}
.contact-desc { color: rgba(255, 255, 255, 0.85); font-size: 16px; line-height: 1.8; margin-bottom: 36px; }
.contact-info { display: flex; flex-direction: column; gap: 16px; margin-bottom: 36px; }
.info-item {
  display: flex; align-items: center; gap: 20px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}
.info-label {
  flex-shrink: 0;
  padding: 6px 12px;
  background: white;
  color: var(--color-primary);
  border-radius: 6px;
  font-size: 13px; font-weight: 600;
}
.info-value { font-size: 15px; color: rgba(255, 255, 255, 0.95); }

.contact-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  min-height: 500px;
}
.contact-visual img {
  position: relative; z-index: 1;
  max-height: 480px; width: auto;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.3));
  animation: float 6s ease-in-out infinite;
}
.contact-glow {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-darker);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.6); }
.footer-col h4 { color: white; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.3s ease;
}
.footer-col a:hover { color: var(--color-purple-light); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   动画 - 滚动进入
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
  :root { --section-py: 80px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: white;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--color-border);
  }
  .nav-links.open a { display: block; width: 100%; }

  .hero-container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 400px; }
  .hero-card-1 { width: 220px; height: 300px; right: 20px; }
  .hero-card-2 { width: 180px; height: 240px; right: 200px; }
  .hero-card-3 { width: 130px; height: 130px; right: 250px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }

  .about-grid, .role-grid, .contact-card { grid-template-columns: 1fr; }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-card.wide { grid-column: span 2; }
  .business-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid, .cases-grid, .incubation-points { grid-template-columns: repeat(2, 1fr); }
  .strength-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .incubation-flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); padding: 4px 0; }
}

@media (max-width: 640px) {
  :root { --section-py: 64px; }
  .container { padding: 0 20px; }
  .nav-container { padding: 0 20px; }
  .hero { padding: 100px 0 60px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 24px; }
  .advantage-grid, .business-grid, .team-grid, .cases-grid, .incubation-points { grid-template-columns: 1fr; }
  .advantage-card.wide { grid-column: span 1; flex-direction: column; text-align: center; }
  .role-solutions { grid-template-columns: 1fr; }
  .role-solutions li:nth-child(5) { grid-column: span 1; }
  .contact-content { padding: 40px 28px; }
  .contact-visual { padding: 20px; min-height: 300px; }
  .contact-visual img { max-height: 280px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .business-strength, .team-strength { padding: 28px 20px; }
}