/* ====== VisualHub Landing Page - 六邦黑金橙主题 ====== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #080808;
  color: #fff;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ====== 容器 ====== */
.lp-wrap {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ====== 顶部光效 ====== */
.lp-light {
  position: absolute;
  top: -100px;
  pointer-events: none;
  filter: blur(80px);
  z-index: 0;
}
.lp-light-1 {
  left: 50%;
  width: 1200px;
  height: 280px;
  background: linear-gradient(90deg, rgba(233,139,34,0) 0%, rgba(247,166,63,.48) 40%, rgba(164,28,52,.38) 72%, rgba(164,28,52,0) 100%);
  transform: translate(-50%) rotate(-8deg);
  animation: lpRay1 14s ease-in-out infinite alternate;
}
.lp-light-2 {
  left: 50%;
  width: 900px;
  height: 200px;
  background: linear-gradient(90deg, rgba(164,28,52,0) 0%, rgba(164,28,52,.3) 38%, rgba(248,216,106,.3) 70%, rgba(247,166,63,0) 100%);
  transform: translate(-60%) rotate(-12deg);
  animation: lpRay2 18s ease-in-out -4s infinite alternate;
  filter: blur(60px);
}
@keyframes lpRay1 {
  0%   { opacity: .6; transform: translate(-50%) rotate(-8deg) translateY(0); }
  30%  { opacity: 1;   transform: translate(-40%) rotate(-3deg) translateY(-30px); }
  60%  { opacity: .8;  transform: translate(-60%) rotate(-14deg) translateY(20px); }
  100% { opacity: .7;  transform: translate(-55%) rotate(-6deg) translateY(-15px); }
}
@keyframes lpRay2 {
  0%   { opacity: .4; transform: translate(-60%) rotate(-12deg) translateY(0) scale(1); }
  35%  { opacity: .8; transform: translate(-45%) rotate(-6deg) translateY(-40px) scale(1.1); }
  65%  { opacity: .5; transform: translate(-70%) rotate(-18deg) translateY(30px) scale(.9); }
  100% { opacity: .6; transform: translate(-50%) rotate(-10deg) translateY(-20px) scale(1.05); }
}

/* ====== 导航栏 ====== */
.lp-nav {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
}
.lp-nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lp-nav-logo {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #e98b22 0%, #f7a63f 56%, #f8d86a 100%);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 18px; color: #fff;
}
.lp-nav-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.lp-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lp-nav-login {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(105deg, #e98b22, #f7a63f 56%, #f8d86a);
  color: #171109;
  transition: transform .12s, box-shadow .2s;
  box-shadow: 0 8px 24px rgba(247,166,63,.28);
}
.lp-nav-login:hover {
  transform: scale(1.04);
  box-shadow: 0 12px 32px rgba(247,166,63,.4);
}

/* ====== 主内容 ====== */
.lp-main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  padding: 0 24px;
}

/* ====== Hero 区域 ====== */
.lp-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 100px;
  text-align: center;
  animation: lpFadeIn .8s ease-out;
}
@keyframes lpFadeIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.lp-logo-ring {
  width: 110px; height: 110px;
  border-radius: 32px;
  background: linear-gradient(135deg, #a41c34 0%, #e98b22 42%, #f8d86a 72%, #f7a63f 100%);
  padding: 3px;
  margin-bottom: 36px;
  box-shadow: 0 20px 60px rgba(247,166,63,.32);
  animation: lpFloat 6s ease-in-out infinite;
}
@keyframes lpFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}
.lp-logo-mark {
  width: 100%; height: 100%;
  border-radius: 30px;
  background: #161616;
  display: flex; align-items: center; justify-content: center;
  font-size: 46px; font-weight: 900;
  background: linear-gradient(180deg, #24170f 0%, #080808 100%);
  color: #fff;
}
.lp-title {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.2;
  background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lp-subtitle {
  margin-top: 20px;
  font-size: 20px;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
}

/* ====== 功能卡片 ====== */
.lp-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  width: 100%;
  margin-top: 64px;
  animation: lpFadeIn 1s ease-out .2s both;
}
.lp-feature-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 32px 24px;
  cursor: pointer;
  transition: all .25s ease;
  backdrop-filter: blur(12px);
}
.lp-feature-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(248,216,106,.32);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(247,166,63,.16);
}
.lp-feature-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(247,166,63,.22), rgba(164,28,52,.16));
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}
.lp-feature-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}
.lp-feature-desc {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.45);
}

/* ====== CTA 按钮 ====== */
.lp-cta {
  margin-top: 56px;
  animation: lpFadeIn 1s ease-out .4s both;
}
.lp-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 56px;
  padding: 0 36px;
  border-radius: 18px;
  font-size: 17px;
  font-weight: 700;
  background: linear-gradient(105deg, #e98b22, #f7a63f 56%, #f8d86a);
  color: #171109;
  box-shadow: 0 16px 48px rgba(247,166,63,.32);
  transition: all .2s ease;
}
.lp-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 60px rgba(247,166,63,.44);
}
.lp-cta-btn svg {
  transition: transform .2s;
}
.lp-cta-btn:hover svg {
  transform: translateX(4px);
}

/* ====== 页脚 ====== */
.lp-footer {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 32px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.3);
  margin-top: auto;
}

/* ====== 响应式 ====== */
@media (max-width: 900px) {
  .lp-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .lp-title {
    font-size: 36px;
  }
  .lp-hero {
    margin-top: 64px;
  }
}
@media (max-width: 560px) {
  .lp-features {
    grid-template-columns: 1fr;
  }
  .lp-title {
    font-size: 28px;
  }
  .lp-subtitle {
    font-size: 16px;
  }
  .lp-nav {
    padding: 16px 20px;
  }
  .lp-hero {
    margin-top: 48px;
  }
}