:root {
  color-scheme: dark;
  
  /* 基础色彩 */
  --color-background: #06070a;
  --color-foreground: rgba(255, 255, 255, 0.92);
  --color-muted: rgba(255, 255, 255, 0.72);
  
  /* 金色系 - 主色调 */
  --color-accent: #f7c05c;
  --color-accent-strong: #f7e7ad;
  --color-accent-secondary: #d4a853;
  
  /* 新增：暖铜色调 */
  --color-copper: #c87533;
  --color-copper-light: #e89c5c;
  
  /* 新增：香槟色调 */
  --color-champagne: #f7e7ce;
  --color-champagne-dark: #d9c8a3;
  
  /* 新增：深色强调 */
  --color-noir: #1a1410;
  --color-noir-transparent: rgba(26, 20, 16, 0.6);
  
  /* 新增：盖茨比绿光 */
  --color-gatsby-green: #4a9b7f;
  --color-gatsby-green-light: #5fbf9a;
  --color-gatsby-blue: #2d5d7a;
  
  /* 叠加与遮罩 */
  --color-overlay: rgba(6, 7, 10, 0.82);
  
  /* 字体 */
  --font-heading: "Cinzel", serif;
  --font-body: "Open Sans", sans-serif;
  
  /* 阴影与发光 */
  --shadow-glow: 0 0 25px rgba(247, 192, 92, 0.65);
  --shadow-glow-strong: 0 0 35px rgba(247, 192, 92, 0.85);
  --shadow-depth: 0 30px 80px rgba(0, 0, 0, 0.6);
  --shadow-elevation: 0 10px 40px rgba(0, 0, 0, 0.4);
  
  /* 动画时序 */
  --timing-quick: 180ms ease;
  --timing-smooth: 420ms cubic-bezier(0.23, 1, 0.32, 1);
  --timing-bounce: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --timing-elastic: 800ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z轴层级系统 */
  --z-background: 0;
  --z-backdrop: 1;
  --z-content: 10;
  --z-elevated: 20;
  --z-floating: 30;
  --z-overlay: 100;
  --z-modal: 1000;
  --z-cursor: 9999;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  min-height: 100vh;
  /* 中文排版优化 */
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.landing-body {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.starlight-field {
  position: fixed;
  inset: 0;
  z-index: var(--z-background);
  overflow: hidden;
  
  /* 多层星空背景 */
  background: 
    radial-gradient(2px 2px at 20% 30%, white, transparent),
    radial-gradient(2px 2px at 60% 70%, rgba(247, 192, 92, 0.8), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(247, 231, 173, 0.6), transparent),
    radial-gradient(1px 1px at 80% 20%, white, transparent),
    radial-gradient(circle at 20% 20%, rgba(247, 192, 92, 0.15), transparent 55%),
    radial-gradient(circle at 80% 30%, rgba(116, 197, 255, 0.12), transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(255, 255, 255, 0.08), transparent 70%),
    #040308;
  background-size: 
    400% 400%,
    300% 300%,
    500% 500%,
    350% 350%,
    100% 100%,
    100% 100%,
    100% 100%,
    100% 100%;
  
  filter: blur(0.4px);
  animation: 
    shimmer 18s linear infinite,
    twinkle 20s ease-in-out infinite;
}

/* 星星闪烁动画 */
@keyframes twinkle {
  0%, 100% { 
    background-position: 
      0% 0%, 100% 100%, 50% 50%, 80% 20%,
      20% 20%, 80% 30%, 50% 80%, 0% 0%;
  }
  25% {
    background-position: 
      25% 25%, 75% 85%, 60% 40%, 70% 30%,
      20% 20%, 80% 30%, 50% 80%, 0% 0%;
  }
  50% { 
    background-position: 
      100% 100%, 0% 0%, 75% 25%, 90% 10%,
      20% 20%, 80% 30%, 50% 80%, 0% 0%;
  }
  75% {
    background-position: 
      75% 75%, 25% 15%, 40% 60%, 60% 40%,
      20% 20%, 80% 30%, 50% 80%, 0% 0%;
  }
}

@keyframes shimmer {
  from {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04) rotate(0.2deg);
  }
  to {
    transform: scale(1);
  }
}

/* ========================================
   金色粒子特效系统 - 80个粒子
   ======================================== */
.particles-container {
  position: fixed;
  inset: 0;
  z-index: var(--z-backdrop);
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  filter: blur(1px);
  animation: floatUp 8s ease-in-out infinite, shimmerParticle 3s ease-in-out infinite;
}

/* 粒子发光动画 */
@keyframes shimmerParticle {
  0%, 100% {
    opacity: 0.6;
    filter: blur(1px) brightness(1);
  }
  50% {
    opacity: 0.95;
    filter: blur(0.5px) brightness(1.4);
  }
}

/* 上升动画 */
@keyframes floatUp {
  0% {
    transform: translateY(100vh) translateX(0) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-20vh) translateX(var(--drift-x, 0)) scale(1);
    opacity: 0;
  }
}

/* 使用 nth-child 为 80 个粒子生成样式 */
.particle:nth-child(1) { left: 2%; width: 8px; height: 8px; animation-delay: 0s; animation-duration: 9s; --drift-x: 30px; }
.particle:nth-child(2) { left: 4%; width: 6px; height: 6px; animation-delay: 0.2s; animation-duration: 10s; --drift-x: -40px; }
.particle:nth-child(3) { left: 6%; width: 10px; height: 10px; animation-delay: 0.4s; animation-duration: 8s; --drift-x: 50px; }
.particle:nth-child(4) { left: 8%; width: 7px; height: 7px; animation-delay: 0.6s; animation-duration: 9.5s; --drift-x: -30px; }
.particle:nth-child(5) { left: 10%; width: 9px; height: 9px; animation-delay: 0.8s; animation-duration: 8.5s; --drift-x: 40px; }
.particle:nth-child(6) { left: 12%; width: 5px; height: 5px; animation-delay: 1s; animation-duration: 10.5s; --drift-x: -50px; }
.particle:nth-child(7) { left: 14%; width: 11px; height: 11px; animation-delay: 1.2s; animation-duration: 7.5s; --drift-x: 35px; }
.particle:nth-child(8) { left: 16%; width: 8px; height: 8px; animation-delay: 1.4s; animation-duration: 9.2s; --drift-x: -45px; }
.particle:nth-child(9) { left: 18%; width: 6px; height: 6px; animation-delay: 1.6s; animation-duration: 10.2s; --drift-x: 45px; }
.particle:nth-child(10) { left: 20%; width: 9px; height: 9px; animation-delay: 1.8s; animation-duration: 8.8s; --drift-x: -35px; }

.particle:nth-child(11) { left: 22%; width: 7px; height: 7px; animation-delay: 2s; animation-duration: 9.3s; --drift-x: 38px; }
.particle:nth-child(12) { left: 24%; width: 10px; height: 10px; animation-delay: 2.2s; animation-duration: 7.8s; --drift-x: -42px; }
.particle:nth-child(13) { left: 26%; width: 5px; height: 5px; animation-delay: 2.4s; animation-duration: 10.8s; --drift-x: 42px; }
.particle:nth-child(14) { left: 28%; width: 8px; height: 8px; animation-delay: 2.6s; animation-duration: 8.3s; --drift-x: -38px; }
.particle:nth-child(15) { left: 30%; width: 11px; height: 11px; animation-delay: 2.8s; animation-duration: 7.6s; --drift-x: 48px; }
.particle:nth-child(16) { left: 32%; width: 6px; height: 6px; animation-delay: 3s; animation-duration: 10.3s; --drift-x: -48px; }
.particle:nth-child(17) { left: 34%; width: 9px; height: 9px; animation-delay: 3.2s; animation-duration: 8.7s; --drift-x: 32px; }
.particle:nth-child(18) { left: 36%; width: 7px; height: 7px; animation-delay: 3.4s; animation-duration: 9.6s; --drift-x: -32px; }
.particle:nth-child(19) { left: 38%; width: 10px; height: 10px; animation-delay: 3.6s; animation-duration: 8.1s; --drift-x: 46px; }
.particle:nth-child(20) { left: 40%; width: 8px; height: 8px; animation-delay: 3.8s; animation-duration: 9.8s; --drift-x: -46px; }

.particle:nth-child(21) { left: 42%; width: 6px; height: 6px; animation-delay: 4s; animation-duration: 10.6s; --drift-x: 36px; }
.particle:nth-child(22) { left: 44%; width: 11px; height: 11px; animation-delay: 4.2s; animation-duration: 7.4s; --drift-x: -36px; }
.particle:nth-child(23) { left: 46%; width: 7px; height: 7px; animation-delay: 4.4s; animation-duration: 9.4s; --drift-x: 44px; }
.particle:nth-child(24) { left: 48%; width: 9px; height: 9px; animation-delay: 4.6s; animation-duration: 8.6s; --drift-x: -44px; }
.particle:nth-child(25) { left: 50%; width: 5px; height: 5px; animation-delay: 4.8s; animation-duration: 10.4s; --drift-x: 28px; }
.particle:nth-child(26) { left: 52%; width: 10px; height: 10px; animation-delay: 5s; animation-duration: 8.2s; --drift-x: -28px; }
.particle:nth-child(27) { left: 54%; width: 8px; height: 8px; animation-delay: 5.2s; animation-duration: 9.1s; --drift-x: 52px; }
.particle:nth-child(28) { left: 56%; width: 6px; height: 6px; animation-delay: 5.4s; animation-duration: 10.1s; --drift-x: -52px; }
.particle:nth-child(29) { left: 58%; width: 11px; height: 11px; animation-delay: 5.6s; animation-duration: 7.7s; --drift-x: 34px; }
.particle:nth-child(30) { left: 60%; width: 7px; height: 7px; animation-delay: 5.8s; animation-duration: 9.7s; --drift-x: -34px; }

.particle:nth-child(31) { left: 62%; width: 9px; height: 9px; animation-delay: 6s; animation-duration: 8.4s; --drift-x: 47px; }
.particle:nth-child(32) { left: 64%; width: 5px; height: 5px; animation-delay: 6.2s; animation-duration: 10.7s; --drift-x: -47px; }
.particle:nth-child(33) { left: 66%; width: 10px; height: 10px; animation-delay: 6.4s; animation-duration: 8s; --drift-x: 39px; }
.particle:nth-child(34) { left: 68%; width: 8px; height: 8px; animation-delay: 6.6s; animation-duration: 9.5s; --drift-x: -39px; }
.particle:nth-child(35) { left: 70%; width: 6px; height: 6px; animation-delay: 6.8s; animation-duration: 10.5s; --drift-x: 41px; }
.particle:nth-child(36) { left: 72%; width: 11px; height: 11px; animation-delay: 0.1s; animation-duration: 7.3s; --drift-x: -41px; }
.particle:nth-child(37) { left: 74%; width: 7px; height: 7px; animation-delay: 0.3s; animation-duration: 9.9s; --drift-x: 33px; }
.particle:nth-child(38) { left: 76%; width: 9px; height: 9px; animation-delay: 0.5s; animation-duration: 8.9s; --drift-x: -33px; }
.particle:nth-child(39) { left: 78%; width: 8px; height: 8px; animation-delay: 0.7s; animation-duration: 9s; --drift-x: 49px; }
.particle:nth-child(40) { left: 80%; width: 10px; height: 10px; animation-delay: 0.9s; animation-duration: 8.7s; --drift-x: -49px; }

.particle:nth-child(41) { left: 82%; width: 6px; height: 6px; animation-delay: 1.1s; animation-duration: 10.9s; --drift-x: 37px; }
.particle:nth-child(42) { left: 84%; width: 5px; height: 5px; animation-delay: 1.3s; animation-duration: 10s; --drift-x: -37px; }
.particle:nth-child(43) { left: 86%; width: 11px; height: 11px; animation-delay: 1.5s; animation-duration: 7.2s; --drift-x: 43px; }
.particle:nth-child(44) { left: 88%; width: 7px; height: 7px; animation-delay: 1.7s; animation-duration: 9.2s; --drift-x: -43px; }
.particle:nth-child(45) { left: 90%; width: 9px; height: 9px; animation-delay: 1.9s; animation-duration: 8.5s; --drift-x: 51px; }
.particle:nth-child(46) { left: 92%; width: 8px; height: 8px; animation-delay: 2.1s; animation-duration: 9.4s; --drift-x: -51px; }
.particle:nth-child(47) { left: 94%; width: 10px; height: 10px; animation-delay: 2.3s; animation-duration: 8.3s; --drift-x: 29px; }
.particle:nth-child(48) { left: 96%; width: 6px; height: 6px; animation-delay: 2.5s; animation-duration: 10.2s; --drift-x: -29px; }
.particle:nth-child(49) { left: 98%; width: 7px; height: 7px; animation-delay: 2.7s; animation-duration: 9.7s; --drift-x: 31px; }
.particle:nth-child(50) { left: 3%; width: 11px; height: 11px; animation-delay: 2.9s; animation-duration: 7.9s; --drift-x: -31px; }

.particle:nth-child(51) { left: 5%; width: 8px; height: 8px; animation-delay: 3.1s; animation-duration: 9.1s; --drift-x: 45px; }
.particle:nth-child(52) { left: 7%; width: 5px; height: 5px; animation-delay: 3.3s; animation-duration: 10.6s; --drift-x: -45px; }
.particle:nth-child(53) { left: 9%; width: 9px; height: 9px; animation-delay: 3.5s; animation-duration: 8.8s; --drift-x: 40px; }
.particle:nth-child(54) { left: 11%; width: 6px; height: 6px; animation-delay: 3.7s; animation-duration: 10.4s; --drift-x: -40px; }
.particle:nth-child(55) { left: 13%; width: 10px; height: 10px; animation-delay: 3.9s; animation-duration: 8.1s; --drift-x: 48px; }
.particle:nth-child(56) { left: 15%; width: 7px; height: 7px; animation-delay: 4.1s; animation-duration: 9.6s; --drift-x: -48px; }
.particle:nth-child(57) { left: 17%; width: 11px; height: 11px; animation-delay: 4.3s; animation-duration: 7.5s; --drift-x: 35px; }
.particle:nth-child(58) { left: 19%; width: 8px; height: 8px; animation-delay: 4.5s; animation-duration: 9.3s; --drift-x: -35px; }
.particle:nth-child(59) { left: 21%; width: 6px; height: 6px; animation-delay: 4.7s; animation-duration: 10.3s; --drift-x: 50px; }
.particle:nth-child(60) { left: 23%; width: 9px; height: 9px; animation-delay: 4.9s; animation-duration: 8.6s; --drift-x: -50px; }

.particle:nth-child(61) { left: 25%; width: 7px; height: 7px; animation-delay: 5.1s; animation-duration: 9.8s; --drift-x: 38px; }
.particle:nth-child(62) { left: 27%; width: 10px; height: 10px; animation-delay: 5.3s; animation-duration: 8.2s; --drift-x: -38px; }
.particle:nth-child(63) { left: 29%; width: 5px; height: 5px; animation-delay: 5.5s; animation-duration: 10.7s; --drift-x: 42px; }
.particle:nth-child(64) { left: 31%; width: 11px; height: 11px; animation-delay: 5.7s; animation-duration: 7.4s; --drift-x: -42px; }
.particle:nth-child(65) { left: 33%; width: 8px; height: 8px; animation-delay: 5.9s; animation-duration: 9.2s; --drift-x: 46px; }
.particle:nth-child(66) { left: 35%; width: 6px; height: 6px; animation-delay: 6.1s; animation-duration: 10.5s; --drift-x: -46px; }
.particle:nth-child(67) { left: 37%; width: 9px; height: 9px; animation-delay: 6.3s; animation-duration: 8.7s; --drift-x: 32px; }
.particle:nth-child(68) { left: 39%; width: 7px; height: 7px; animation-delay: 6.5s; animation-duration: 9.5s; --drift-x: -32px; }
.particle:nth-child(69) { left: 41%; width: 10px; height: 10px; animation-delay: 6.7s; animation-duration: 8.4s; --drift-x: 44px; }
.particle:nth-child(70) { left: 43%; width: 8px; height: 8px; animation-delay: 6.9s; animation-duration: 9s; --drift-x: -44px; }

.particle:nth-child(71) { left: 45%; width: 11px; height: 11px; animation-delay: 0.15s; animation-duration: 7.6s; --drift-x: 36px; }
.particle:nth-child(72) { left: 47%; width: 6px; height: 6px; animation-delay: 0.35s; animation-duration: 10.8s; --drift-x: -36px; }
.particle:nth-child(73) { left: 49%; width: 9px; height: 9px; animation-delay: 0.55s; animation-duration: 8.9s; --drift-x: 52px; }
.particle:nth-child(74) { left: 51%; width: 7px; height: 7px; animation-delay: 0.75s; animation-duration: 9.4s; --drift-x: -52px; }
.particle:nth-child(75) { left: 53%; width: 5px; height: 5px; animation-delay: 0.95s; animation-duration: 10.1s; --drift-x: 28px; }
.particle:nth-child(76) { left: 55%; width: 10px; height: 10px; animation-delay: 1.15s; animation-duration: 8.3s; --drift-x: -28px; }
.particle:nth-child(77) { left: 57%; width: 8px; height: 8px; animation-delay: 1.35s; animation-duration: 9.7s; --drift-x: 41px; }
.particle:nth-child(78) { left: 59%; width: 11px; height: 11px; animation-delay: 1.55s; animation-duration: 7.8s; --drift-x: -41px; }
.particle:nth-child(79) { left: 61%; width: 6px; height: 6px; animation-delay: 1.75s; animation-duration: 10.4s; --drift-x: 47px; }
.particle:nth-child(80) { left: 63%; width: 9px; height: 9px; animation-delay: 1.95s; animation-duration: 8.5s; --drift-x: -47px; }

/* 为所有粒子添加发光效果 */
.particle {
  background: radial-gradient(circle, rgba(247, 231, 173, 0.95), rgba(247, 192, 92, 0.75));
  box-shadow: 
    0 0 20px rgba(247, 192, 92, 0.85), 
    0 0 40px rgba(247, 192, 92, 0.45),
    0 0 60px rgba(247, 192, 92, 0.25);
  transition: box-shadow 0.3s ease, filter 0.3s ease;
}

/* 为一些粒子添加更强的发光 */
.particle:nth-child(5n) {
  box-shadow: 
    0 0 30px rgba(247, 192, 92, 0.95), 
    0 0 60px rgba(247, 192, 92, 0.6),
    0 0 90px rgba(247, 192, 92, 0.35);
}

/* ========== 粒子爆发增强效果 ========== */

/* 涟漪效果样式 */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 192, 92, 0.6), transparent);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleEffect {
  to {
    transform: scale(2.5);
    opacity: 0;
  }
}

/* 按钮悬停时的粒子爆发 */
.particles-container.particle-burst .particle {
  animation-duration: 3.5s !important;
}

.particles-container.particle-burst .particle:nth-child(5n) {
  box-shadow: 
    0 0 50px rgba(247, 192, 92, 1), 
    0 0 100px rgba(247, 192, 92, 0.8),
    0 0 150px rgba(247, 192, 92, 0.6) !important;
  filter: blur(0.3px) brightness(1.8) !important;
}

.particles-container.particle-burst .particle:nth-child(3n) {
  box-shadow: 
    0 0 40px rgba(247, 192, 92, 0.98), 
    0 0 80px rgba(247, 192, 92, 0.7),
    0 0 120px rgba(247, 192, 92, 0.5) !important;
  filter: blur(0.4px) brightness(1.6) !important;
}

.particles-container.particle-burst .particle:nth-child(2n) {
  box-shadow: 
    0 0 35px rgba(247, 192, 92, 0.9), 
    0 0 70px rgba(247, 192, 92, 0.6),
    0 0 105px rgba(247, 192, 92, 0.4) !important;
  filter: blur(0.5px) brightness(1.5) !important;
}

/* hero-content 悬停时的粒子增强 */
.particles-container.particle-enhanced .particle {
  animation-duration: 5s !important;
}

.particles-container.particle-enhanced .particle:nth-child(7n) {
  box-shadow: 
    0 0 35px rgba(247, 192, 92, 0.95), 
    0 0 70px rgba(247, 192, 92, 0.65),
    0 0 105px rgba(247, 192, 92, 0.4) !important;
  filter: blur(0.4px) brightness(1.5) !important;
}

/* 移动端优化 - 只显示一半粒子 */
@media (max-width: 768px) {
  .particle {
    animation-duration: 6s !important;
  }
  
  .particle:nth-child(n+21) {
    display: none;
  }
}

/* ======================================== */

/* 新增：页面元素入场动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: var(--shadow-glow);
  }
  50% {
    box-shadow: var(--shadow-glow-strong);
  }
}

.site-header,
.site-footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 56px;
}

.site-header {
  background: linear-gradient(180deg, rgba(6, 7, 10, 0.78) 0%, rgba(6, 7, 10, 0.06) 100%);
  backdrop-filter: blur(10px);
  animation: fadeInDown 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.branding {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(247, 192, 92, 0.6);
  border-radius: 50%;
  font-size: 24px;
  color: var(--color-accent);
  text-shadow: var(--shadow-glow);
  transition: transform var(--timing-smooth), box-shadow var(--timing-smooth);
}

.brand-mark:hover {
  transform: rotate(360deg) scale(1.1);
  box-shadow: 0 0 30px rgba(247, 192, 92, 0.6);
}

.brand-text {
  font-weight: 600;
  font-size: 18px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: 999px;
  transition: color var(--timing-quick), background-color var(--timing-quick), box-shadow var(--timing-quick), transform var(--timing-quick);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(247, 192, 92, 0.3), transparent);
  opacity: 0;
  transform: scale(0);
  transition: opacity var(--timing-smooth), transform var(--timing-smooth);
}

.nav-link:hover::before,
.nav-link:focus-visible::before {
  opacity: 1;
  transform: scale(1);
}

.nav-link.ghost {
  border: 1px solid rgba(247, 192, 92, 0.4);
}

.nav-link.ghost:hover {
  background-color: rgba(247, 192, 92, 0.15);
  box-shadow: 0 0 15px rgba(247, 192, 92, 0.4);
  transform: translateY(-2px);
}

.hero-section {
  position: relative;
  flex: 1;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 32px 160px;
  text-align: center;
}

.hero-content {
  max-width: 620px;
  position: relative;
  padding: 60px 48px;
  border-radius: 28px;
  animation: scaleIn 0.9s cubic-bezier(0.23, 1, 0.32, 1) 0.2s backwards;
  overflow: hidden;
  z-index: var(--z-elevated);
  
  /* 新拟态玻璃效果 - 多层阴影 */
  background: linear-gradient(
    135deg, 
    rgba(6, 7, 10, 0.75) 0%,
    rgba(26, 20, 16, 0.55) 50%,
    rgba(6, 7, 10, 0.75) 100%
  );
  backdrop-filter: blur(20px) saturate(150%);
  
  /* 分层边框 */
  border: 1px solid rgba(247, 192, 92, 0.25);
  
  /* 多重阴影叠加 */
  box-shadow: 
    /* 内部高光 */
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -1px 0 rgba(0, 0, 0, 0.5),
    /* 外部发光 */
    0 0 60px rgba(247, 192, 92, 0.2),
    /* 主阴影 */
    0 30px 80px rgba(0, 0, 0, 0.6),
    /* 边缘光晕 */
    0 0 2px rgba(247, 231, 173, 0.3);
  
  /* 3D变换准备 */
  transform-style: preserve-3d;
  transition: transform 0.3s ease-out, box-shadow 0.3s ease;
}

/* 外层光环 */
.hero-content::before {
  content: "";
  position: absolute;
  inset: -2px;
  border: 1px solid rgba(247, 192, 92, 0.15);
  border-radius: inherit;
  pointer-events: none;
  z-index: -1;
}

/* 内层高光 */
.hero-content::after {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: calc(28px - 2px);
  pointer-events: none;
}

/* 悬浮增强效果 */
.hero-content:hover {
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -1px 0 rgba(0, 0, 0, 0.5),
    0 0 80px rgba(247, 192, 92, 0.3),
    0 35px 90px rgba(0, 0, 0, 0.7),
    0 0 3px rgba(247, 231, 173, 0.5);
}

.hero-kicker {
  font-size: 14px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.4s backwards;
}

.hero-title {
  font-family: var(--font-heading);
  letter-spacing: 0.04em;
  font-size: clamp(36px, 5vw, 56px);
  margin: 0;
  background: linear-gradient(135deg, var(--color-accent-strong), var(--color-accent), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
  animation: 
    fadeInUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.5s backwards,
    titleBreathGlow 4s ease-in-out 1.3s infinite;
}

/* 标题呼吸光效动画 */
@keyframes titleBreathGlow {
  0%, 100% {
    filter: 
      drop-shadow(0 0 25px rgba(247, 192, 92, 0.65))
      drop-shadow(0 0 50px rgba(247, 192, 92, 0.3));
    transform: scale(1);
  }
  50% {
    filter: 
      drop-shadow(0 0 45px rgba(247, 192, 92, 0.95))
      drop-shadow(0 0 90px rgba(247, 192, 92, 0.6))
      drop-shadow(0 0 135px rgba(247, 192, 92, 0.35));
    transform: scale(1.02);
  }
}

.hero-subtitle {
  margin-top: 24px;
  margin-bottom: 40px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(15px, 2vw, 17px);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.6s backwards;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 32px;
  font-size: 18px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, rgba(247, 192, 92, 0.95), rgba(247, 231, 173, 0.98));
  color: #0d0d0d;
  font-weight: 600;
  position: relative;
  z-index: var(--z-floating);
  animation: fadeInUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.7s backwards;
  overflow: hidden;
  
  /* 按压效果阴影 */
  box-shadow: 
    0 10px 30px rgba(247, 192, 92, 0.5),
    inset 0 -3px 0 rgba(0, 0, 0, 0.2),
    0 0 0 0 rgba(247, 192, 92, 0.4);
  
  transition: transform var(--timing-bounce), box-shadow var(--timing-smooth), background var(--timing-smooth);
}

/* 高光层 */
.cta-button::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0;
  transition: opacity var(--timing-smooth);
  border-radius: inherit;
}

/* 涟漪容器 */
.cta-button::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

.cta-button:hover::before {
  opacity: 1;
}

.cta-button:hover,
.cta-button:focus-visible {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 
    0 20px 50px rgba(247, 192, 92, 0.6),
    inset 0 -3px 0 rgba(0, 0, 0, 0.2),
    0 0 0 8px rgba(247, 192, 92, 0.2);
  background: linear-gradient(135deg, rgba(247, 231, 173, 0.98), rgba(247, 192, 92, 0.95));
}

.cta-button:active {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 
    0 8px 20px rgba(247, 192, 92, 0.4),
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);
}

.cta-button:focus-visible {
  outline: 3px solid rgba(247, 192, 92, 0.45);
  outline-offset: 6px;
}

.site-footer {
  flex-direction: column;
  gap: 12px;
  font-size: 12px;
  color: var(--color-muted);
  background: linear-gradient(180deg, rgba(6, 7, 10, 0.02) 0%, rgba(6, 7, 10, 0.78) 100%);
  animation: fadeInUp 1s cubic-bezier(0.23, 1, 0.32, 1) 0.8s backwards;
}

.footer-divider {
  width: min(400px, 60%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(247, 192, 92, 0.5), transparent);
}

.video-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.9);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--timing-smooth);
  z-index: 10;
}

.video-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.overlay-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.video-overlay-caption {
  position: absolute;
  top: 36px;
  left: 36px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 13px;
  color: var(--color-accent-strong);
  transition: opacity var(--timing-quick);
  display: flex;
  align-items: center;
  gap: 8px;
}

.caption-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.caption-ellipsis {
  display: inline-block;
  width: 36px;
  text-align: left;
  letter-spacing: 0.4em;
}

.video-overlay.interaction-required::after {
  content: "请点击屏幕以继续";
  position: absolute;
  bottom: 18%;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid rgba(247, 192, 92, 0.45);
  background: rgba(6, 7, 10, 0.7);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--color-accent-strong);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.48);
}

.video-overlay.interaction-required .video-overlay-caption {
  opacity: 0.65;
}

.skip-hotspot {
  position: absolute;
  bottom: 40px;
  right: 40px;
  width: 68px;
  height: 68px;
  background: rgba(6, 7, 10, 0.24);
  border: 1px solid rgba(247, 192, 92, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: background-color var(--timing-quick), transform var(--timing-smooth), box-shadow var(--timing-quick);
  display: grid;
  place-items: center;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(247, 192, 92, 0.7);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(247, 192, 92, 0);
  }
}

.skip-hotspot::after {
  content: "跳过";
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-accent-strong);
}

.skip-hotspot:hover,
.skip-hotspot:focus-visible {
  background: rgba(247, 192, 92, 0.3);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
  transform: translateY(-3px) scale(1.05);
  outline: none;
  animation: none;
}

.skip-hint {
  position: absolute;
  bottom: 42px;
  right: 42px;
  padding: 12px 20px;
  border-radius: 999px;
  background: rgba(6, 7, 10, 0.82);
  border: 1px solid rgba(247, 192, 92, 0.52);
  color: var(--color-accent-strong);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--timing-quick), transform var(--timing-quick);
  transform: translateY(10px);
}

.skip-hint.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 改进可访问性 - 增强焦点指示器 */
*:focus-visible {
  outline: 3px solid rgba(247, 192, 92, 0.6);
  outline-offset: 4px;
}

/* 优化选中文本样式 */
::selection {
  background-color: rgba(247, 192, 92, 0.35);
  color: rgba(255, 255, 255, 0.98);
}

::-moz-selection {
  background-color: rgba(247, 192, 92, 0.35);
  color: rgba(255, 255, 255, 0.98);
}

@media (max-width: 768px) {
  .site-header,
  .site-footer {
    padding: 20px;
  }

  .hero-content {
    padding: 48px 32px;
  }

  .hero-title {
    font-size: clamp(32px, 8vw, 48px);
  }

  .hero-subtitle {
    font-size: 15px;
    line-height: 1.8;
  }

  .cta-button {
    font-size: 16px;
    letter-spacing: 0.14em;
    padding: 16px 28px;
  }
  
  .video-overlay-caption {
    font-size: 11px;
    top: 20px;
    left: 20px;
  }
  
  .skip-hotspot {
    width: 56px;
    height: 56px;
    bottom: 24px;
    right: 24px;
  }
}

/* 新增：小屏幕优化 */
@media (max-width: 480px) {
  .hero-content {
    padding: 36px 24px;
    border-radius: 20px;
  }
  
  .hero-kicker {
    font-size: 12px;
    letter-spacing: 0.2em;
  }
  
  .cta-button {
    width: 100%;
    max-width: 280px;
  }
}