/* ==========================================
   CSS 变量定义
   ========================================== */
:root {
  /* 色彩系统 */
  --color-bg-primary: #0A0E27;
  --color-bg-secondary: #1A1D2E;
  --color-neon-purple: #B24BF3;
  --color-cyber-orange: #FF6B35;
  --color-gold: #D4AF37;
  --color-text-primary: #E8E8E8;
  --color-text-secondary: #8A8A8A;

  /* 间距系统 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-neon: 0 0 20px rgba(178, 75, 243, 0.5);

  /* 动效 */
  --duration-fast: 200ms;
  --duration-normal: 300ms;
  --easing: ease-in-out;
}

/* ==========================================
   重置样式
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ==========================================
   容器和布局
   ========================================== */
.page-container {
  min-height: 100vh;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================
   头部导航
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid rgba(178, 75, 243, 0.2);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-neon-purple) 0%, var(--color-cyber-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  z-index: 1001;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav a {
  color: var(--color-text-primary);
  font-size: 14px;
  transition: color var(--duration-fast) var(--easing);
  position: relative;
  padding: var(--spacing-sm);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav a:hover {
  color: var(--color-neon-purple);
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-neon-purple);
  transition: width var(--duration-fast) var(--easing);
}

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

/* 移动端汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  z-index: 1001;
  min-width: 44px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  justify-content: center;
  align-items: center;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--duration-fast) var(--easing);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ==========================================
   按钮样式
   ========================================== */
.cta-button {
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--easing);
  display: inline-block;
  text-align: center;
  min-height: 44px;
  min-width: 44px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.cta-button.primary {
  background: linear-gradient(135deg, var(--color-neon-purple) 0%, #8B3FD9 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(178, 75, 243, 0.3);
}

.cta-button.primary:hover {
  box-shadow: 0 6px 20px rgba(178, 75, 243, 0.5);
  transform: translateY(-2px);
}

.cta-button.primary:active {
  transform: scale(0.98);
}

.cta-button.large {
  padding: 18px 32px;
  font-size: 18px;
  width: 100%;
  max-width: 400px;
}

/* ==========================================
   核心卖点区域
   ========================================== */
.hero-section {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(to bottom,
      rgba(10, 14, 39, 0.7) 0%,
      rgba(10, 14, 39, 0.85) 50%,
      var(--color-bg-primary) 100%
    ),
    url('https://images.unsplash.com/photo-1518391846015-55a9cc003b25?w=1920&q=80') center/cover no-repeat;
  background-color: var(--color-bg-primary);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 0%, rgba(178, 75, 243, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-neon-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.hero-time {
  font-size: 18px;
  color: var(--color-cyber-orange);
  margin-bottom: var(--spacing-xl);
  font-weight: 500;
}

.hero-note {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-md);
}

.city-skyline {
  height: 200px;
  margin-top: var(--spacing-2xl);
  background: linear-gradient(to bottom, transparent 0%, var(--color-bg-secondary) 100%);
  position: relative;
}

/* ==========================================
   区块标题
   ========================================== */
.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-text-primary);
}

/* ==========================================
   痛点与解决方案区域
   ========================================== */
.solution-section {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.solution-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.solution-text {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
}

.solution-text strong {
  color: var(--color-neon-purple);
  font-size: 24px;
}

.solution-intro {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* 情绪场景标签 */
.emotion-tags {
  margin-top: var(--spacing-2xl);
  display: flex;
  justify-content: center;
  align-items: center;
}

.emotion-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.6s ease-in-out;
  padding: var(--spacing-md);
}

.emotion-tag {
  display: inline-block;
  padding: 12px 24px;
  background: radial-gradient(circle at 30% 30%, rgba(178, 75, 243, 0.4), rgba(178, 75, 243, 0.15));
  border: 2px solid rgba(178, 75, 243, 0.3);
  border-radius: 100px;
  color: var(--color-text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: default;
  position: relative;
  transition: all 0.3s ease;
  box-shadow:
    0 4px 15px rgba(178, 75, 243, 0.3),
    inset 0 -2px 8px rgba(0, 0, 0, 0.2),
    inset 0 2px 8px rgba(255, 255, 255, 0.1);
  animation: float 3s ease-in-out infinite;
}

/* 气泡光泽效果 */
.emotion-tag::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 8px;
  width: 20px;
  height: 12px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.6), rgba(178, 75, 243, 0.3), rgba(255, 107, 53, 0.2));
  border-radius: 50%;
  filter: blur(3px);
  animation: shimmer 4s ease-in-out infinite;
}

/* 不同气泡的大小和动画延迟 */
.emotion-tag:nth-child(1) {
  animation-delay: 0s;
  transform: scale(1.05);
}

.emotion-tag:nth-child(2) {
  animation-delay: 0.5s;
  transform: scale(0.95);
}

.emotion-tag:nth-child(3) {
  animation-delay: 1s;
  transform: scale(1);
}

.emotion-tag:nth-child(4) {
  animation-delay: 1.5s;
  transform: scale(0.98);
}

.emotion-tag:nth-child(5) {
  animation-delay: 2s;
  transform: scale(1.02);
}

.emotion-tag:hover {
  transform: translateY(-5px) scale(1.1);
  box-shadow:
    0 8px 25px rgba(178, 75, 243, 0.5),
    inset 0 -2px 8px rgba(0, 0, 0, 0.2),
    inset 0 2px 12px rgba(255, 255, 255, 0.2);
  border-color: var(--color-neon-purple);
  background: radial-gradient(circle at 30% 30%, rgba(178, 75, 243, 0.6), rgba(178, 75, 243, 0.25));
}

/* 浮动动画 */
@keyframes float {
  0% {
    transform: translate(0px, 0px);
  }
  25% {
    transform: translate(3px, -4px);
  }
  50% {
    transform: translate(-2px, -8px);
  }
  75% {
    transform: translate(4px, -5px);
  }
  100% {
    transform: translate(0px, 0px);
  }
}

/* 光晕闪烁动画 */
@keyframes shimmer {
  0% {
    left: 8px;
    top: 3px;
    opacity: 0.4;
    transform: scale(1);
  }
  15% {
    left: 18px;
    top: 6px;
    opacity: 0.6;
    transform: scale(1.3);
  }
  30% {
    left: 12px;
    top: 2px;
    opacity: 0.5;
    transform: scale(0.9);
  }
  45% {
    left: 22px;
    top: 8px;
    opacity: 0.7;
    transform: scale(1.4);
  }
  60% {
    left: 6px;
    top: 5px;
    opacity: 0.45;
    transform: scale(1.1);
  }
  75% {
    left: 16px;
    top: 3px;
    opacity: 0.65;
    transform: scale(1.2);
  }
  90% {
    left: 10px;
    top: 7px;
    opacity: 0.55;
    transform: scale(1.15);
  }
  100% {
    left: 8px;
    top: 3px;
    opacity: 0.4;
    transform: scale(1);
  }
}

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

/* ==========================================
   会员权益区域
   ========================================== */
.benefits-section {
  padding: 80px 0;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.benefit-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--duration-normal) var(--easing);
  border: 1px solid transparent;
}

.benefit-card:hover {
  border-color: var(--color-neon-purple);
  box-shadow: var(--shadow-neon);
  transform: translateY(-4px);
}

.benefit-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.benefit-card h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
  color: var(--color-neon-purple);
}

.benefit-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ==========================================
   酒店展示区域
   ========================================== */
.hotels-section {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.hotels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.hotel-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--easing);
  cursor: pointer;
}

.hotel-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-neon);
}

.hotel-image {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
  background: linear-gradient(135deg,
    var(--color-bg-secondary) 0%,
    rgba(178, 75, 243, 0.2) 50%,
    var(--color-bg-secondary) 100%);
  filter: brightness(0.85) contrast(1.1);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hotel-image::before {
  content: '🏨';
  font-size: 48px;
  opacity: 0.3;
  position: absolute;
}

.hotel-image::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.4);
}

.hotel-info {
  padding: var(--spacing-md);
}

.hotel-info h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.hotel-location {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.hotels-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ==========================================
   支付区域
   ========================================== */
.payment-section {
  padding: 80px 0;
}

.payment-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  border: 2px solid var(--color-neon-purple);
  box-shadow: var(--shadow-neon);
}

.payment-content {
  margin-top: var(--spacing-xl);
}

.payment-description {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
}

.payment-description strong {
  color: var(--color-neon-purple);
  font-size: 18px;
}

.payment-options {
  background: rgba(178, 75, 243, 0.1);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.payment-options h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.payment-options ul {
  list-style: none;
}

.payment-options li {
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-secondary);
  padding-left: var(--spacing-lg);
}

.price-display {
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.price-label {
  display: block;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.price-amount {
  font-family: 'DIN Alternate', 'Bebas Neue', monospace;
  font-size: 48px;
  font-weight: 700;
  color: var(--color-cyber-orange);
}

.payment-card .cta-button {
  display: block;
  margin: 0 auto;
}

/* ==========================================
   表单区域
   ========================================== */
.form-section {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.form-card {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
}

.member-form {
  margin-top: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.required {
  color: var(--color-cyber-orange);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  background: var(--color-bg-secondary);
  border: 1px solid rgba(178, 75, 243, 0.3);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  transition: all var(--duration-fast) var(--easing);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-neon-purple);
  box-shadow: 0 0 0 3px rgba(178, 75, 243, 0.1);
}

.form-group input::placeholder {
  color: var(--color-text-secondary);
}

/* ==========================================
   FAQ区域
   ========================================== */
.faq-section {
  padding: 80px 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq-question {
  padding: var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--duration-fast) var(--easing);
}

.faq-question:hover {
  background: rgba(178, 75, 243, 0.1);
}

.faq-question h3 {
  font-size: 16px;
  color: var(--color-text-primary);
  margin: 0;
}

.faq-icon {
  font-size: 24px;
  color: var(--color-neon-purple);
  transition: transform var(--duration-fast) var(--easing);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--easing);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* ==========================================
   联系方式区域
   ========================================== */
.contact-section {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

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

.contact-item h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.qr-code {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg,
    var(--color-bg-primary) 0%,
    rgba(178, 75, 243, 0.1) 100%);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-neon-purple);
  position: relative;
  overflow: hidden;
}

.qr-code::before {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  background: repeating-linear-gradient(
    0deg,
    var(--color-neon-purple) 0px,
    var(--color-neon-purple) 2px,
    transparent 2px,
    transparent 4px
  ),
  repeating-linear-gradient(
    90deg,
    var(--color-neon-purple) 0px,
    var(--color-neon-purple) 2px,
    transparent 2px,
    transparent 4px
  );
  opacity: 0.2;
}

.qr-code p {
  font-size: 14px;
  color: var(--color-text-secondary);
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-md);
}

/* ==========================================
   页脚
   ========================================== */
.footer {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  border-top: 1px solid rgba(178, 75, 243, 0.2);
}

.footer p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: var(--spacing-sm) 0;
}

/* ==========================================
   响应式适配
   ========================================== */
@media (max-width: 768px) {
  /* 头部导航 */
  .header .container {
    flex-direction: row;
    justify-content: space-between;
  }

  .menu-toggle {
    display: none;
  }

  .nav {
    display: none;
  }

  /* 核心卖点区域 */
  .hero-section {
    padding: 100px 0 40px;
  }

  .hero-title {
    font-size: 32px;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
  }

  .hero-subtitle {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
  }

  .hero-time {
    font-size: 16px;
    margin-bottom: var(--spacing-lg);
  }

  .hero-note {
    margin-top: var(--spacing-sm);
  }

  .cta-button {
    font-size: 16px;
    padding: 14px 24px;
    width: 100%;
    max-width: 100%;
  }

  .cta-button.large {
    font-size: 16px;
    padding: 16px 24px;
  }

  /* 区块标题 */
  .section-title {
    font-size: 24px;
    margin-bottom: var(--spacing-lg);
  }

  /* 会员权益 */
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  /* 酒店展示 */
  .hotels-grid {
    grid-template-columns: 1fr;
  }

  /* 支付区域 */
  .payment-card {
    padding: var(--spacing-lg);
  }

  .price-amount {
    font-size: 36px;
  }

  .payment-description {
    font-size: 15px;
  }

  /* 表单优化 */
  .form-group input,
  .form-group select {
    font-size: 16px;
    padding: 14px 16px;
    min-height: 48px;
  }

  .form-group label {
    font-size: 15px;
  }

  /* FAQ优化 */
  .faq-question {
    padding: var(--spacing-md);
  }

  .faq-question h3 {
    font-size: 15px;
    line-height: 1.5;
  }

  .faq-answer p {
    font-size: 14px;
    line-height: 1.7;
  }

  /* 联系方式 */
  .contact-info {
    flex-direction: column;
    align-items: center;
  }

  .qr-code {
    width: 180px;
    height: 180px;
  }

  /* 间距调整 */
  .solution-section,
  .benefits-section,
  .hotels-section,
  .payment-section,
  .form-section,
  .faq-section,
  .contact-section {
    padding: 40px 0;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (max-width: 375px) {
  /* 小屏幕适配 */
  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 14px;
  }

  .section-title {
    font-size: 20px;
  }

  .benefit-card,
  .hotel-card {
    padding: var(--spacing-md);
  }

  .payment-card {
    padding: var(--spacing-md);
  }

  .price-amount {
    font-size: 32px;
  }
}