/* ===== CSS Design System: pg娱乐网页版 ===== */
/* 视觉风格：野兽派 × 渐变流体 × 网格解构 */
/* 配色：深紫罗兰 (#1A0033) + 荧光绿 (#00FF88) + 暗金 (#C9A84C) */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;500;700;900&display=swap');

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

:root {
  --bg-dark: #1A0033;
  --bg-card: #2A1050;
  --accent-green: #00FF88;
  --accent-gold: #C9A84C;
  --text-white: #F0EDFF;
  --text-muted: #A89BC0;
  --glow-green: 0 0 30px rgba(0, 255, 136, 0.3);
  --glow-gold: 0 0 20px rgba(201, 168, 76, 0.2);
  --border-neon: 2px solid var(--accent-green);
  --radius-sm: 4px;
  --radius-lg: 20px;
  --font-sans: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
}

body {
  background: var(--bg-dark);
  color: var(--text-white);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Container ===== */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

/* ===== Site Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(26, 0, 51, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 255, 136, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
  min-height: 70px;
}

.logo {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: var(--glow-green);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.02) skew(-2deg);
}

.main-nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.03em;
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.3s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--accent-green);
  transition: width 0.3s ease;
  box-shadow: var(--glow-green);
}

.main-nav a:hover {
  color: var(--text-white);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--accent-green);
  color: var(--bg-dark) !important;
  padding: 0.6rem 1.6rem !important;
  border-radius: 50px;
  font-weight: 700 !important;
  box-shadow: var(--glow-green);
  transition: all 0.3s ease;
}

.nav-cta:hover {
  background: #00CC6A;
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.5);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--accent-green);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: transform 0.3s ease;
}

.menu-toggle:hover {
  transform: rotate(90deg);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.08), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); opacity: 0.6; }
  100% { transform: translate(-50px, 30px) scale(1.2); opacity: 1; }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.1);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 255, 136, 0.3);
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-white) 30%, var(--accent-green) 70%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  background: linear-gradient(145deg, var(--bg-card), transparent);
  border-radius: var(--radius-lg);
  min-height: 400px;
  border: 1px solid rgba(0, 255, 136, 0.1);
  box-shadow: var(--glow-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 900;
  color: var(--accent-gold);
  overflow: hidden;
}

.hero-image::after {
  content: 'PG';
  position: absolute;
  font-size: 12rem;
  font-weight: 900;
  color: rgba(0, 255, 136, 0.03);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  letter-spacing: -0.08em;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--accent-green);
  color: var(--bg-dark);
  box-shadow: var(--glow-green);
}

.btn-primary:hover {
  background: #00CC6A;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 50px rgba(0, 255, 136, 0.6);
}

.btn-outline {
  background: transparent;
  color: var(--accent-green);
  border: 2px solid var(--accent-green);
}

.btn-outline:hover {
  background: rgba(0, 255, 136, 0.1);
  transform: translateY(-3px);
  box-shadow: var(--glow-green);
}

/* ===== Section ===== */
.section {
  padding: 6rem 0;
  border-top: 1px solid rgba(0, 255, 136, 0.05);
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding: 0.3rem 1rem;
  border-left: 3px solid var(--accent-gold);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  font-weight: 300;
  line-height: 1.7;
}

/* ===== Cards Grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.category-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  border: 1px solid rgba(0, 255, 136, 0.08);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.category-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-green);
  box-shadow: 0 20px 60px rgba(0, 255, 136, 0.15);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.2rem;
  color: var(--accent-green);
  display: block;
}

.category-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.category-card p {
  color: var(--text-muted);
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.6;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-green);
  text-decoration: none;
  font-weight: 700;
  margin-top: 1.5rem;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 0.8rem;
  color: var(--accent-gold);
}

/* ===== Feature Block ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin: 4rem 0;
}

.feature-image {
  background: linear-gradient(135deg, var(--bg-card), #2A1050);
  border-radius: var(--radius-lg);
  min-height: 350px;
  border: 1px solid rgba(201, 168, 76, 0.2);
  box-shadow: var(--glow-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent-gold);
  position: relative;
  overflow: hidden;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(0, 255, 136, 0.02) 20px, rgba(0, 255, 136, 0.02) 40px);
}

.feature-text {
  padding: 1rem 0;
}

.feature-text h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.feature-text p {
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-white);
  font-weight: 500;
}

.feature-list li::before {
  content: '▸';
  color: var(--accent-green);
  font-size: 1.3rem;
}

/* ===== Stats Bar ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding: 4rem 0;
  border-top: 1px solid rgba(0, 255, 136, 0.1);
  border-bottom: 1px solid rgba(0, 255, 136, 0.1);
  margin: 4rem 0;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: rgba(42, 16, 80, 0.4);
  border-radius: var(--radius-sm);
  transition: background 0.3s ease;
}

.stat-item:hover {
  background: rgba(42, 16, 80, 0.8);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 300;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===== Content Wall ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.content-wall-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 2rem;
  border-left: 4px solid var(--accent-green);
  transition: all 0.3s ease;
  position: relative;
}

.content-wall-item:hover {
  transform: translateX(6px);
  border-left-color: var(--accent-gold);
  box-shadow: -10px 0 30px rgba(0, 255, 136, 0.1);
}

.content-wall-body h4 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.content-wall-body p {
  color: var(--text-muted);
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 800px;
  margin: 3rem auto;
}

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 1.2rem 1.8rem;
  cursor: pointer;
  border: 1px solid rgba(0, 255, 136, 0.05);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(0, 255, 136, 0.2);
}

.faq-item summary {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-green);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  padding-top: 1rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.7;
  border-top: 1px solid rgba(0, 255, 136, 0.1);
  margin-top: 1rem;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--bg-card), #3A1A6A);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  text-align: center;
  margin: 4rem 0;
  border: 1px solid rgba(0, 255, 136, 0.1);
  box-shadow: var(--glow-green);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(0, 255, 136, 0.04), transparent);
  animation: ctaGlow 10s ease-in-out infinite alternate;
}

@keyframes ctaGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-20px, 20px); }
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto 2rem;
  font-weight: 300;
  position: relative;
  z-index: 2;
}

.cta-banner .btn {
  position: relative;
  z-index: 2;
}

/* ===== Site Footer ===== */
.site-footer {
  background: #0D001A;
  border-top: 1px solid rgba(0, 255, 136, 0.1);
  padding: 4rem 0 0;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(0, 255, 136, 0.05);
}

.footer-brand .logo {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-brand p {
  color: var(--text-muted);
  font-weight: 300;
  font-size: 0.95rem;
  max-width: 300px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-green);
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 300;
  padding: 0.3rem 0;
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-col a:hover {
  color: var(--accent-green);
  padding-left: 6px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 300;
}

/* ===== Utility ===== */
.text-accent {
  color: var(--accent-green);
}

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

.seo-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  max-width: 800px;
  margin: 2rem auto;
  padding: 1.5rem;
  background: rgba(42, 16, 80, 0.3);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 136, 0.05);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    min-height: 300px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

@media (max-width: 768px) {
  .header-inner {
    padding: 0.5rem 0;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(26, 0, 51, 0.98);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 2px solid var(--accent-green);
  }

  .main-nav.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .section {
    padding: 4rem 0;
  }

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

  .stats-bar {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .content-wall {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .container {
    padding: 0 1.2rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-image {
    min-height: 200px;
    font-size: 3rem;
  }

  .btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .cta-banner {
    padding: 2.5rem 1.5rem;
  }
}