/* style.css - MK体育官网 */
:root {
  --primary: #6c63ff;
  --primary-dark: #5a52d5;
  --secondary: #ff6584;
  --accent: #00d9a6;
  --bg-dark: #0f0f23;
  --bg-card: rgba(255,255,255,0.08);
  --bg-glass: rgba(255,255,255,0.12);
  --text-primary: #f0f0f5;
  --text-secondary: #b0b0c8;
  --border-glass: rgba(255,255,255,0.18);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(145deg, #0f0f23 0%, #1a1a3e 50%, #0f0f23 100%);
  background-attachment: fixed;
}

/* 渐变Banner背景 */
#hero {
  position: relative;
  background: linear-gradient(135deg, #1a1a3e 0%, #2d1b69 40%, #6c63ff 70%, #ff6584 100%);
  background-size: 200% 200%;
  animation: gradientShift 12s ease infinite;
  padding: 6rem 2rem 8rem;
  text-align: center;
  border-radius: 0 0 var(--radius) var(--radius);
  margin-bottom: 2rem;
  overflow: hidden;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(108,99,255,0.15) 0%, transparent 60%),
              radial-gradient(circle at 70% 60%, rgba(255,101,132,0.1) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-10%, -5%) scale(1.1); }
}

#hero h1 {
  font-size: clamp(2rem, 6vw, 3.8rem);
  font-weight: 800;
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 20px rgba(0,0,0,0.4);
  position: relative;
  z-index: 1;
  background: linear-gradient(to right, #fff, #e0d4ff, #ffd4e0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#hero p {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  max-width: 720px;
  margin: 0 auto 2.5rem;
  color: rgba(255,255,255,0.85);
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
  position: relative;
  z-index: 1;
}

#hero a[role="button"] {
  display: inline-block;
  padding: 0.9rem 2.4rem;
  margin: 0.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  transition: var(--transition);
  position: relative;
  z-index: 1;
  cursor: pointer;
}

#hero a[role="button"]:first-of-type {
  background: linear-gradient(135deg, #fff, #e0d4ff);
  color: #1a1a3e;
  box-shadow: 0 6px 24px rgba(108,99,255,0.4);
}

#hero a[role="button"]:first-of-type:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 36px rgba(108,99,255,0.6);
}

#hero a[role="button"]:last-of-type {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
}

#hero a[role="button"]:last-of-type:hover {
  background: rgba(255,255,255,0.22);
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.4);
}

/* 导航 */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(15,15,35,0.7);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0.6rem 1rem;
}

nav[aria-label="主导航"] {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

nav[aria-label="主导航"] a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

nav[aria-label="主导航"] a:hover,
nav[aria-label="主导航"] a[aria-current="page"] {
  background: rgba(108,99,255,0.2);
  color: #fff;
  backdrop-filter: blur(8px);
}

/* 通用section样式 */
main section {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

main section:nth-child(2) { animation-delay: 0.1s; }
main section:nth-child(3) { animation-delay: 0.2s; }
main section:nth-child(4) { animation-delay: 0.3s; }
main section:nth-child(5) { animation-delay: 0.4s; }
main section:nth-child(6) { animation-delay: 0.5s; }
main section:nth-child(7) { animation-delay: 0.6s; }
main section:nth-child(8) { animation-delay: 0.7s; }
main section:nth-child(9) { animation-delay: 0.8s; }
main section:nth-child(10) { animation-delay: 0.9s; }
main section:nth-child(11) { animation-delay: 1s; }
main section:nth-child(12) { animation-delay: 1.1s; }
main section:nth-child(13) { animation-delay: 1.2s; }

main section:hover {
  border-color: rgba(108,99,255,0.3);
  box-shadow: 0 12px 48px rgba(108,99,255,0.15);
  transform: translateY(-4px);
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff, #b8aaff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  color: var(--accent);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-width: 75ch;
}

ul, ol {
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.5rem;
}

/* 圆角卡片 - 产品等 */
article {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}

article:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(108,99,255,0.3);
  transform: translateY(-3px);
}

/* details / FAQ */
details {
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.2rem;
  margin-bottom: 0.8rem;
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
  cursor: pointer;
}

details:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(108,99,255,0.2);
}

details[open] {
  background: rgba(108,99,255,0.1);
  border-color: rgba(108,99,255,0.3);
}

summary {
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.3rem 0;
  outline: none;
}

details p {
  margin-top: 0.8rem;
  padding-left: 0.5rem;
  border-left: 2px solid var(--primary);
}

/* 联系地址 */
address {
  font-style: normal;
  background: var(--bg-glass);
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.06);
  line-height: 2;
}

/* 知识中心链接 */
#knowledge ul li a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

#knowledge ul li a:hover {
  border-bottom-color: var(--accent);
  color: #fff;
}

/* 页脚 */
footer {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
}

footer nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

footer nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

footer nav a:hover {
  color: #fff;
}

footer p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0.3rem 0;
}

/* 法律信息aside */
#legal {
  max-width: 1100px;
  margin: 1.5rem auto 3rem;
  padding: 1.5rem 2rem;
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.05);
}

#legal h2 {
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
}

#legal p {
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

/* 响应式 */
@media (max-width: 768px) {
  #hero {
    padding: 4rem 1.2rem 5rem;
    border-radius: 0;
  }

  main section {
    margin: 1.2rem 0.8rem;
    padding: 1.8rem 1.2rem;
    border-radius: var(--radius-sm);
  }

  nav[aria-label="主导航"] {
    gap: 0.2rem;
  }

  nav[aria-label="主导航"] a {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
  }

  #hero a[role="button"] {
    display: block;
    width: 80%;
    margin: 0.6rem auto;
    text-align: center;
  }

  h2 {
    font-size: 1.5rem;
  }

  article {
    padding: 1rem;
  }

  footer nav {
    gap: 0.8rem;
  }
}

@media (max-width: 480px) {
  html { font-size: 14px; }

  #hero h1 { font-size: 1.8rem; }
  #hero p { font-size: 0.95rem; }

  main section {
    padding: 1.2rem 0.8rem;
    margin: 0.8rem 0.4rem;
  }
}

/* 暗色模式增强 - 已经是暗色，但确保所有元素 */
::selection {
  background: var(--primary);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* 毛玻璃通用 */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
}

/* 滚动动画 - 利用IntersectionObserver已在JS中实现，这里提供fallback */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 额外hover效果 */
a, button, summary, article, details {
  cursor: pointer;
}

/* 确保所有链接可访问 */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}