/**
 * TimeMachine AI Generated Style
 * Domain: fengdongyuanlin.com
 * Generated: 2026-01-14 18:28:43
 */



:root {
  --color-primary: #2E5CFF;
  --color-accent-red: #ff4d4f;
  --color-text: #333333;
  --color-muted: #6b7280;
  --color-bg: #f8fafc;
  --color-white: #ffffff;
  --shadow-soft: 0 10px 30px rgba(46,92,255,0.12);
  --shadow-card: 0 12px 30px rgba(0,0,0,0.08);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --container: 1200px;
  --header-h: 84px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul { list-style: none; padding: 0; margin: 0; }
h1,h2,h3,h4,h5,h6 { margin: 0 0 8px; font-weight: 700; }
p { margin: 0 0 12px; }
pre { white-space: pre-wrap; word-wrap: break-word; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.clearfix::after { content: ""; display: table; clear: both; }
.left { float: left; }
.right { float: right; }

.lh-flex { display: flex; align-items: center; }
.lh-flex.wrap { flex-wrap: wrap; }
.lh-flex.center { justify-content: center; }
.lh-flex.between { justify-content: space-between; }
.lh-flex.around { justify-content: space-around; }

/* Header */
.lh-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  background: rgba(255,255,255,0.6);
  border-bottom: 1px solid rgba(46,92,255,0.08);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}
.lh-header .container { height: 100%; }

.lh-nav-btn {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px; height: 40px;
  display: none;
  align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(46,92,255,0.08);
  color: var(--color-primary);
}
.lh-nav-btn i {
  position: relative;
  display: block;
  width: 20px; height: 2px;
  background: var(--color-primary);
}
.lh-nav-btn i::before,
.lh-nav-btn i::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-primary);
  transition: transform .3s ease, top .3s ease, opacity .3s ease;
}
.lh-nav-btn i::before { top: -6px; }
.lh-nav-btn i::after { top: 6px; }

.lh-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  height: 100%;
  padding: 0 160px 0 60px;
}
.lh-nav > li > a {
  display: inline-block;
  padding: 8px 10px;
  color: #111827;
  font-weight: 600;
  letter-spacing: .2px;
  position: relative;
  transition: color .2s ease;
}
.lh-nav > li > a::after {
  content: "";
  position: absolute;
  left: 10px; right: 10px; bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), #7C3AED);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
  border-radius: 2px;
}
.lh-nav > li > a:hover { color: var(--color-primary); }
.lh-nav > li > a:hover::after { transform: scaleX(1); }

.lh-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 48px;
}
.lh-logo a { display: block; width: 100%; height: 100%; }
.lh-logo img { width: 100%; height: 100%; object-fit: contain; }

.lh-home {
  position: absolute;
  right: 60px; top: 50%;
  transform: translateY(-50%);
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(46,92,255,0.08);
  color: var(--color-primary);
}
.lh-home .iconfont { font-size: 18px; }

.lh-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  display: none;
  align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(46,92,255,0.08);
  color: var(--color-primary);
}
.lh-toggle-line { width: 22px; height: 14px; position: relative; }
.lh-toggle-line > div {
  position: absolute; left: 0; right: 0; height: 2px; background: var(--color-primary);
  transition: transform .3s ease, opacity .3s ease, top .3s ease;
  border-radius: 2px;
}
.lh-toggle-line .line1 { top: 0; }
.lh-toggle-line .line2 { top: 6px; }
.lh-toggle-line .line3 { top: 6px; }
.lh-toggle-line .line4 { top: 12px; }

.lh-toggle-l {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(92vw, 360px);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(46,92,255,0.12);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
  padding: 12px;
  display: none;
}
.lh-toggle-nav > li { margin-bottom: 6px; }
.lh-toggle-nav dt > a {
  display: block;
  padding: 10px 12px;
  font-weight: 700;
  border-radius: 12px;
  color: #0f172a;
  background: rgba(46,92,255,0.06);
}
.lh-toggle-nav dd > a {
  display: block;
  padding: 8px 12px 8px 20px;
  color: #334155;
  border-left: 2px solid rgba(46,92,255,0.15);
  margin: 4px 0;
  border-radius: 0 8px 8px 0;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.lh-toggle-nav dd > a:hover {
  background: rgba(46,92,255,0.08);
  color: var(--color-primary);
  transform: translateX(2px);
}

.down { height: var(--header-h); }

/* Video modal */
.lh-video {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1200;
  padding: 24px;
}
.lh-video video {
  width: min(100%, 960px);
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  background: #000;
}
.lh-video-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  color: #111827;
  box-shadow: 0 6px 18px rgba(0,0,0,0.2);
}
.lh-video-close .iconfont { font-size: 20px; }

/* Hero / Banner */
.lh-main { position: relative; }
.lh-index-banner {
  position: relative;
  min-height: clamp(480px, 72vh, 820px);
  overflow: hidden;
  color: #fff;
  display: flex; align-items: center;
}
.lh-index-banner::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(120deg, rgba(46,92,255,0.75), rgba(124,58,237,0.65)),
    radial-gradient(1200px 600px at 80% 20%, rgba(255,77,79,0.30), transparent 60%),
    url('/assets/images/f33c6af3439ed6422c6f5136bd18ec69.jpg') center/cover no-repeat;
  z-index: 0;
}
.lh-index-banner::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(800px 400px at 20% 80%, rgba(255,255,255,0.10), transparent 60%);
  z-index: 0;
}
.lh-index-banner .container { position: relative; z-index: 1; }

.lh-banner { position: relative; }
.lh-banner .lh-banner-bd {
  display: flex;
  transition: transform .6s cubic-bezier(.2,.8,.2,1);
}
.lh-banner .swiper-slide {
  flex: 0 0 100%;
  position: relative;
  min-height: clamp(480px, 72vh, 820px);
  display: flex; align-items: center;
}
.lh-banner .swiper-slide .img {
  position: absolute; inset: 0;
  background-position: center; background-size: cover; background-repeat: no-repeat;
  filter: brightness(.9);
}
.lh-banner .swiper-slide .text {
  position: relative; z-index: 1;
  max-width: 760px;
  padding: 20px 0;
}
.lh-banner .swiper-slide h2 {
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: .5px;
  line-height: 1.1;
  margin-bottom: 12px;
  text-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.lh-banner .swiper-slide h3 {
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 600;
  color: #e5e7eb;
  margin-bottom: 12px;
  text-shadow: 0 8px 24px rgba(0,0,0,0.35);
}
.lh-banner .swiper-slide pre {
  color: #d1d5db;
  font-size: 15px;
  max-width: 680px;
  text-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

.lh-banner-hd {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 2;
}
.lh-banner-hd span {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.6);
  border: 2px solid rgba(255,255,255,0.9);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.lh-banner-hd span.active {
  background: #fff;
  transform: scale(1.2);
}

/* Hero Search */
.lh-hero-search {
  margin-top: 28px;
  display: flex;
  align-items: center;
  width: min(680px, 100%);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 999px;
  padding: 8px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.18);
}
.lh-hero-search input {
  flex: 1;
  border: 0; outline: 0;
  background: transparent;
  color: #fff;
  padding: 10px 14px;
  font-size: 15px;
}
.lh-hero-search input::placeholder { color: rgba(255,255,255,0.85); }
.lh-hero-search button {
  border: 0; outline: 0;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #00D4FF 0%, #7C3AED 100%);
  color: #fff; font-weight: 700;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 10px 24px rgba(124,58,237,0.35);
}
.lh-hero-search button:hover { transform: translateY(-1px); }

/* Sections */
.swiper-slide { transform: translateZ(0); }

.lh-index-about { padding: 80px 0; background: var(--color-white); }
.lh-index-about .container { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.lh-index-about .text h2 {
  font-size: 14px; letter-spacing: 4px; color: var(--color-primary); text-transform: uppercase;
}
.lh-index-about .text h3 { font-size: 28px; margin-bottom: 12px; }
.lh-index-about .text pre { color: #4b5563; margin-bottom: 18px; }
.lh-index-about .img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.lh-index-about .img img { width: 100%; height: 100%; object-fit: cover; }
.lh-video-btn {
  position: absolute;
  right: 16px; bottom: 16px;
  width: 56px; height: 56px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #00D4FF, #2E5CFF);
  color: #fff;
  box-shadow: 0 12px 24px rgba(46,92,255,0.35);
}
.lh-video-btn .iconfont { font-size: 22px; }

.lh-index-rd { padding: 80px 0; background: var(--color-bg); }
.lh-index-rd .container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.lh-index-rd .img {
  border-radius: var(--radius-lg);
  min-height: 320px;
  background: url('/assets/images/3edccade09757911afa4512123f30319.jpg') center/cover no-repeat;
  box-shadow: var(--shadow-card);
}
.lh-index-rd .text.right { text-align: right; }
.lh-index-rd .text h3 { font-size: 28px; margin-bottom: 12px; }
.lh-index-rd .text pre { color: #4b5563; }

.lh-index-pro { padding: 80px 0; background: var(--color-white); }
.lh-pro-item { gap: 24px; }
.lh-pro-item li {
  flex: 1;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
}
.lh-pro-item li:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(46,92,255,0.18);
}
.lh-pro-item .img { height: 200px; overflow: hidden; }
.lh-pro-item .img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.lh-pro-item li:hover .img img { transform: scale(1.06); }
.lh-pro-item .text { padding: