/* ===== 基础重置与变量 ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #0a0a12;
  --bg-card: #12121f;
  --bg-card-hover: #1a1a2e;
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --accent: #00cec9;
  --accent-pink: #fd79a8;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;
  --border: rgba(255, 255, 255, 0.08);
  --gradient: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
  --gradient-warm: linear-gradient(135deg, #fd79a8 0%, #6c5ce7 100%);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

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

ul {
  list-style: none;
}

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

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(108, 92, 231, 0.1);
}

.btn-full {
  width: 100%;
}

/* ===== 导航 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 10, 18, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
}

.logo-icon {
  font-size: 24px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(108, 92, 231, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(0, 206, 201, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 10% 60%, rgba(253, 121, 168, 0.1) 0%, transparent 50%),
    var(--bg-dark);
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary-light);
  border-radius: 50%;
  opacity: 0.3;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.3; }
  50% { transform: translateY(-30px) scale(1.2); opacity: 0.6; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero-tag {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  max-width: 560px;
  margin: 0 auto 40px;
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.stat-num {
  font-size: 32px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== 通用区块 ===== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary-light);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ===== 关于我们 ===== */
.about {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0d0d1a 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
}

.about-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(108, 92, 231, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.about-icon {
  font-size: 36px;
  margin-bottom: 20px;
}

.about-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== 游戏 ===== */
.games {
  background: #0d0d1a;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.game-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(108, 92, 231, 0.3);
}

.game-cover {
  height: 200px;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
}

.game-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.game-card:hover .game-cover img {
  transform: scale(1.08);
}

.game-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 18, 0.5) 0%, transparent 50%);
  pointer-events: none;
}

.game-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  font-size: 12px;
  color: var(--accent);
  border: 1px solid rgba(0, 206, 201, 0.3);
}

.game-info {
  padding: 24px;
}

.game-info h3 {
  font-size: 20px;
  margin-bottom: 6px;
}

.game-genre {
  font-size: 13px;
  color: var(--primary-light);
  margin-bottom: 12px;
}

.game-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 新闻 ===== */
.news {
  background: var(--bg-dark);
}

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

.news-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.news-item:first-child {
  padding-top: 0;
}

.news-item:hover {
  padding-left: 12px;
}

.news-item time {
  font-size: 13px;
  color: var(--text-muted);
}

.news-item h3 {
  font-size: 18px;
  margin: 8px 0;
  transition: var(--transition);
}

.news-item:hover h3 {
  color: var(--primary-light);
}

.news-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 联系 ===== */
.contact {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0d0d1a 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-label {
  font-size: 13px;
  color: var(--primary-light);
  font-weight: 500;
}

.contact-item span:last-child {
  color: var(--text-secondary);
  font-size: 15px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

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

/* ===== 页脚 ===== */
.footer {
  background: #06060f;
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4 {
  font-size: 14px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  gap: 12px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-copyright {
  width: 100%;
}

.beian {
  width: 100%;
  margin-top: 4px;
}

.beian a {
  color: var(--text-muted);
  transition: var(--transition);
}

.beian a:hover {
  color: var(--primary-light);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 18, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    padding: 32px 0;
    gap: 24px;
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
  }

  .hero-stats {
    gap: 32px;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ===== 滚动动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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