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

body {
  font-family: "Inter", sans-serif;
  background-color: #fef5ef;
  line-height: 1.5;
  color: #2c1a12;
}

/* 背景图 + 白色半透明蒙层 (主题橙红色保留在UI元素中) */
.bg-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
}

.bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(1.02);
}

/* 白色半透明蒙层 - 提高文字对比度 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 248, 240, 0.82);
  z-index: -1;
}

/* 全局容器 */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* 导航栏 - 橙红色主题 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  flex-wrap: wrap;
  gap: 20px;
  border-bottom: 1px solid rgba(230, 110, 70, 0.35);
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #e65c2e, #ff8a5c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo span {
  font-weight: 400;
  font-size: 0.9rem;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: #bc5a3a;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: #a3411f;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: 0.25s;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  border-bottom-color: #e6582e;
  color: #bf4f2a;
}

/* banner 区域 */
.banner {
  padding: 100px 0 90px;
  text-align: center;
}

.banner h1 {
  font-size: 3.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #d94a1a, #f07040);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.tagline {
  font-size: 1.5rem;
  font-weight: 500;
  color: #c25a32;
  margin-bottom: 2rem;
}

.banner-desc {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: #542f1c;
  background: rgba(255, 245, 235, 0.7);
  backdrop-filter: blur(4px);
  padding: 1.2rem 2rem;
  border-radius: 56px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

/* 通用section样式 */
.section {
  padding: 80px 0;
  border-bottom: 1px solid rgba(210, 95, 55, 0.25);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  text-align: center;
  color: #c04e26;
  position: relative;
}

.section-title:after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background: #e6612e;
  margin: 14px auto 0;
  border-radius: 4px;
}

/* 栅格布局 - 简约创意卡片 橙红色点缀 */
.grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.feature-card {
  background: rgba(255, 250, 245, 0.92);
  backdrop-filter: blur(2px);
  border-radius: 36px;
  padding: 2rem 1.9rem;
  transition: all 0.3s ease;
  border: 1px solid rgba(230, 110, 70, 0.4);
  box-shadow: 0 12px 28px rgba(160, 60, 30, 0.08);
}

.feature-card:hover {
  transform: translateY(-6px);
  background: #ffffff;
  border-color: #ea6838;
  box-shadow: 0 20px 32px rgba(200, 80, 40, 0.12);
}

.feature-icon {
  font-size: 2.3rem;
  color: #e6582e;
  margin-bottom: 1.2rem;
}

.feature-card h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #b2431d;
}

.feature-card p {
  color: #4f2d1c;
  line-height: 1.55;
  font-size: 1rem;
  font-weight: 450;
}

/* screenshot 轮播区域 */
.screenshot-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding: 20px 0 40px;
}

.slider-container {
  overflow: hidden;
  width: 100%;
}

.slider-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.4, 1.1);
  will-change: transform;
}

.slide-card {
  flex: 0 0 calc(33.333% - 16px);
  border-radius: 40px;
  background: rgba(255, 245, 235, 0.8);
  padding: 10px;
  transition: 0.2s;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
}

.slide-card img {
  width: 100%;
  border-radius: 32px;
  box-shadow: 0 20px 30px -8px rgba(160, 70, 35, 0.2);
  display: block;
  aspect-ratio: 9 / 19;
  object-fit: cover;
  border: 2px solid rgba(230, 110, 70, 0.6);
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
}

.slider-btn {
  background: #e6612e;
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 60px;
  font-size: 1.3rem;
  cursor: pointer;
  color: white;
  transition: 0.2s;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.slider-btn:hover {
  background: #c04e26;
  transform: scale(1.05);
}

.dots {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-top: 30px;
}

.dot {
  width: 10px;
  height: 10px;
  background: #f0b28c;
  border-radius: 20px;
  transition: 0.2s;
  cursor: pointer;
}

.dot.active {
  width: 28px;
  background: #e6582e;
}

/* 底部footer */
.footer {
  padding: 56px 0 48px;
  text-align: center;
  border-top: 1px solid rgba(210, 95, 55, 0.35);
  background: transparent;
}

.contact-info {
  margin-bottom: 20px;
}

.contact-info a {
  color: #c65128;
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: 0.2s;
}

.contact-info a:hover {
  color: #a63e18;
  text-decoration: underline;
}

.copyright {
  font-size: 0.85rem;
  color: #8b593e;
  font-weight: 500;
  margin-top: 10px;
}

.social-icons {
  margin: 22px 0 18px;
  display: flex;
  justify-content: center;
  gap: 28px;
}

.social-icons i {
  font-size: 1.6rem;
  color: #d65a2c;
  transition: 0.2s;
  cursor: default;
}

.social-icons i:hover {
  color: #b34218;
}

/* 响应式 */
@media (max-width: 900px) {
  .container {
    padding: 0 24px;
  }
  .grid-2col {
    gap: 1.8rem;
  }
  .slide-card {
    flex: 0 0 calc(50% - 12px);
  }
  .banner h1 {
    font-size: 2.6rem;
  }
  .tagline {
    font-size: 1.2rem;
  }
  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 680px) {
  .navbar {
    flex-direction: column;
    align-items: center;
  }
  .nav-links {
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .grid-2col {
    grid-template-columns: 1fr;
  }
  .slide-card {
    flex: 0 0 85%;
    margin: 0 auto;
  }
  .slider-track {
    gap: 16px;
  }
  .banner h1 {
    font-size: 2rem;
  }
}

html {
  scroll-behavior: smooth;
}