* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", system-ui, sans-serif;
}

:root {
  --primary-dark: #2a0a3a;
  --primary-purple: #4a1e5a;
  --primary-red: #8a2a44;
  --accent-color: #d45d79;
  --text-light: #f5e9ef;
  --text-muted: #c9b3c0;
  --section-padding: 80px 20px;
  --transition: all 0.3s ease;
}

body {
  background-color: #0f0615;
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 背景和蒙层 */
.background-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background-image: url("./photo-1515378791036-0648a3ef77b2.avif");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(42, 10, 58, 0.85) 0%,
    rgba(138, 42, 68, 0.8) 100%
  );
  z-index: -1;
}

/* 导航栏 */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(26, 8, 35, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 15px 5%;
  border-bottom: 1px solid rgba(212, 93, 121, 0.2);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(to right, #c94b7c, #e67e8f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo i {
  color: var(--accent-color);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 20px;
  transition: var(--transition);
}

.nav-links a:hover {
  background-color: rgba(212, 93, 121, 0.2);
  color: var(--accent-color);
}

/* 主内容区 */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 100px;
}

/* 英雄区域 */
.hero {
  text-align: center;
  padding: var(--section-padding);
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 10px;
  background: linear-gradient(to right, #c94b7c, #e67e8f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.hero h2 {
  font-size: 1.8rem;
  color: var(--accent-color);
  margin-bottom: 40px;
  font-weight: 400;
  letter-spacing: 2px;
}

/* 应用截图区域 */
.screenshots {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin: 60px 0;
  flex-wrap: wrap;
}

.screenshot-placeholder {
  width: 180px;
  height: 405px; /* 4:9 比例 */
  background: linear-gradient(
    145deg,
    rgba(74, 30, 90, 0.7),
    rgba(138, 42, 68, 0.7)
  );
  border-radius: 25px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(212, 93, 121, 0.3);
  transition: var(--transition);
}

.screenshot-placeholder:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 40px rgba(0, 0, 0, 0.5);
}

.screenshot-placeholder::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 20px;
  background-color: rgba(26, 8, 35, 0.7);
  border-radius: 10px;
}

.screenshot-placeholder::after {
  content: "Emily App";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 1.2rem;
  text-align: center;
  width: 100%;
  padding: 0 20px;
}

/* 内容区域 */
.content-section {
  padding: var(--section-padding);
  max-width: 900px;
  margin: 0 auto;
}

.content-block {
  margin-bottom: 50px;
  padding: 30px;
  background-color: rgba(26, 8, 35, 0.5);
  border-radius: 15px;
  border-left: 4px solid var(--accent-color);
  transition: var(--transition);
}

.content-block:hover {
  background-color: rgba(26, 8, 35, 0.7);
  transform: translateX(5px);
}

.content-block h3 {
  color: var(--accent-color);
  margin-bottom: 15px;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-block p {
  color: var(--text-light);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* 号召区域 */
.cta {
  text-align: center;
  padding: 60px 20px;
  margin-top: 40px;
  background: linear-gradient(
    to right,
    rgba(74, 30, 90, 0.3),
    rgba(138, 42, 68, 0.3)
  );
  border-radius: 20px;
  border: 1px solid rgba(212, 93, 121, 0.2);
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--accent-color);
}

.cta p {
  font-size: 1.3rem;
  max-width: 700px;
  margin: 0 auto 30px;
}

.highlight {
  color: var(--accent-color);
  font-weight: 700;
}

/* 页脚 */
footer {
  background-color: rgba(15, 6, 21, 0.9);
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid rgba(212, 93, 121, 0.2);
  margin-top: 60px;
}

.contact-info {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.contact-email {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.contact-email:hover {
  text-decoration: underline;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.8rem;
  }

  .hero h2 {
    font-size: 1.4rem;
  }

  .nav-links {
    gap: 10px;
  }

  .nav-links a {
    padding: 6px 12px;
    font-size: 0.9rem;
  }

  .screenshot-placeholder {
    width: 150px;
    height: 337.5px;
  }

  .content-section {
    padding: 40px 15px;
  }

  .content-block {
    padding: 20px;
  }
}

@media (max-width: 576px) {
  .nav-container {
    flex-direction: column;
    gap: 15px;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding: 60px 15px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .screenshots {
    gap: 15px;
  }

  .screenshot-placeholder {
    width: 120px;
    height: 270px;
  }
}