/* Alpha Game · 顶级玩家俱乐部 样式系统 */
:root {
  --bg-dark: #08090b;
  --bg-card: rgba(18, 20, 26, 0.75);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --bg-card-hover: rgba(28, 31, 40, 0.85);
  
  --gold-primary: #d4af37;
  --gold-glow: #f3e5ab;
  --gold-gradient: linear-gradient(135deg, #f9e8a2 0%, #d4af37 50%, #aa8012 100%);
  --gold-text-gradient: linear-gradient(135deg, #ffffff 0%, #f4e09f 50%, #d4af37 100%);
  
  --text-primary: #ffffff;
  --text-secondary: #9da3af;
  --text-muted: #5f6676;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 氛围光环与点阵底纹 */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.12) 0%, transparent 70%);
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
}

.bg-glow-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  bottom: 10%;
  right: -100px;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* 顶部导航 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(8, 9, 11, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  object-fit: cover;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #fff;
}

.brand-accent {
  color: var(--gold-primary);
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--gold-glow);
}

/* 按钮通用 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  border: none;
}

.btn-primary-gold {
  background: var(--gold-gradient);
  color: #121008;
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.25);
}

.btn-primary-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.btn-outline-gold {
  background: rgba(212, 175, 55, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: #f3e5ab;
}

.btn-outline-gold:hover {
  background: rgba(212, 175, 55, 0.15);
  border-color: var(--gold-primary);
  color: #fff;
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
  padding: 14px;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid rgba(212, 175, 55, 0.25);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #f4e09f;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.9); }
  100% { opacity: 1; transform: scale(1); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gold-text-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 40px;
}

/* Hero CTA 表单 */
.hero-cta-box {
  width: 100%;
  max-width: 480px;
  margin-bottom: 60px;
}

.cta-form {
  display: flex;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  padding: 6px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
}

.input-cta {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 18px;
  color: #fff;
  font-size: 0.95rem;
}

.input-cta::placeholder {
  color: var(--text-muted);
}

.cta-footnote {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.badge-lock {
  color: var(--gold-primary);
}

/* 视觉主图展示 */
.hero-visual-card {
  width: 100%;
  max-width: 900px;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(180deg, rgba(212, 175, 55, 0.3) 0%, rgba(255, 255, 255, 0.05) 50%, transparent 100%);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.8);
}

.glass-inner {
  position: relative;
  border-radius: 23px;
  overflow: hidden;
  background: #101217;
}

.hero-art-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  display: block;
  filter: contrast(1.05) brightness(0.95);
}

.hero-art-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 32px;
  background: linear-gradient(0deg, rgba(8, 9, 11, 0.95) 0%, transparent 100%);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.art-badge {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.art-badge-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--gold-primary);
}

.art-badge-sub {
  font-size: 0.9rem;
  color: #cbd5e1;
}

/* 章节通用样式 */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--gold-primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Stats / Manifesto Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 20px;
  padding: 36px 28px;
  transition: all 0.3s ease;
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(212, 175, 55, 0.3);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold-primary);
  margin-bottom: 14px;
}

.stat-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.stat-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* 三维博弈 Pillars */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.pillar-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 24px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.pillar-card:hover {
  border-color: rgba(212, 175, 55, 0.35);
  transform: translateY(-6px);
}

.pillar-featured {
  background: linear-gradient(180deg, rgba(32, 28, 16, 0.8) 0%, rgba(18, 20, 26, 0.8) 100%);
  border-color: rgba(212, 175, 55, 0.45);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.pillar-tag {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--gold-primary);
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.pillar-icon {
  font-size: 2.4rem;
  margin-bottom: 20px;
}

.pillar-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pillar-focus {
  font-size: 0.88rem;
  color: var(--gold-glow);
  margin-bottom: 24px;
}

.pillar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

.pillar-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pillar-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--gold-primary);
  font-weight: bold;
}

/* The Club 专属权益 */
.club-container {
  display: flex;
  justify-content: center;
}

.glass-panel {
  background: rgba(18, 20, 26, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
}

.club-card {
  width: 100%;
  max-width: 860px;
  padding: 60px 48px;
  border-color: rgba(212, 175, 55, 0.25);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
  text-align: center;
}

.club-wordmark {
  max-width: 220px;
  height: auto;
  margin-bottom: 24px;
  opacity: 0.9;
}

.club-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.club-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 40px;
}

.club-benefits {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
  margin-bottom: 48px;
}

.benefit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.check-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(212, 175, 55, 0.2);
  color: var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: bold;
  flex-shrink: 0;
}

.benefit-item strong {
  font-size: 1.05rem;
  display: block;
  margin-bottom: 4px;
}

.benefit-item p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.club-tips {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* FAQ 常见问答 */
.faq-accordion {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--bg-card-border);
  border-radius: 16px;
  background: var(--bg-card);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.3rem;
  color: var(--gold-primary);
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 22px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* 页脚 Footer */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0;
  background: #050608;
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-name {
  font-weight: 800;
  letter-spacing: 1px;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.footer-svg {
  max-width: 420px;
  width: 90%;
  height: auto;
  opacity: 0.6;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.1));
}

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

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--gold-glow);
}

/* 申请弹窗 Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.show {
  display: flex;
}

.modal-card {
  width: 100%;
  max-width: 460px;
  padding: 40px 32px;
  position: relative;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.9);
  animation: modalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.modal-header {
  text-align: center;
  margin-bottom: 28px;
}

.modal-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 8px;
}

.form-group input,
.form-group select {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 12px 16px;
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  font-family: inherit;
}

.form-group select {
  background-color: #12141a;
  cursor: pointer;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

.modal-success-box {
  text-align: center;
  padding: 10px 0;
}

.success-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto 16px;
}

.wechat-badge {
  margin-top: 18px;
  padding: 14px 18px;
  background: rgba(212, 175, 55, 0.08);
  border: 1px dashed rgba(212, 175, 55, 0.35);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-copy {
  background: var(--gold-primary);
  color: #000;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(18, 20, 26, 0.95);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: #fff;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* 响应式适配 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .cta-form {
    flex-direction: column;
    border-radius: 18px;
    padding: 12px;
  }
  .btn-primary-gold {
    width: 100%;
    padding: 12px;
  }
  .club-card {
    padding: 40px 24px;
  }
}