```css
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #E1603F;
  --primary-dark: #C94A2F;
  --primary-light: #F27A5E;
  --secondary: #0E8C73;
  --secondary-dark: #0B6E5A;
  --accent: #F4C95D;
  --accent-soft: #FBE9C3;
  --bg: #FAF6EF;
  --bg-alt: #F3EDE2;
  --text: #2C2520;
  --text-light: #6F6459;
  --white: #FFFFFF;
  --card-shadow-hover: 0 14px 32px rgba(44, 37, 32, 0.1);
  --radius: 18px;
  --radius-sm: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection {
  background: var(--accent);
  color: var(--text);
}

::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 8px;
  border: 2px solid var(--bg);
}

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

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

h1, h2, h3, h4, h5 {
  color: var(--text);
  line-height: 1.25;
}

.container {
  max-width: 1224px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section:nth-child(odd) {
  background: var(--bg);
}

.section:nth-child(even) {
  background:
    radial-gradient(circle at 12% 88%, rgba(244, 201, 93, 0.14) 0%, transparent 32%),
    radial-gradient(circle at 92% 12%, rgba(14, 140, 115, 0.09) 0%, transparent 36%),
    var(--bg-alt);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 246, 239, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(44, 37, 32, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1224px;
  margin: 0 auto;
  padding: 0 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.25rem;