:root {
    --bg-color: #f5f0e6;
    --text-main: #2b2622;
    --text-muted: #6b635b;
    --accent-orange: #e5592e;
    --accent-light: #fdfaf5;
    --font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  }

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

  body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* Typography */
  h1, h2, h3 {
    font-style: italic;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
  }

  p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
  }

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

  /* Layout */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }

  section {
    padding: 80px 0;
    position: relative;
  }

  /* Header & Nav */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(245, 240, 230, 0.95);
    backdrop-filter: blur(5px);
    z-index: 1000;
    border-bottom: 1px solid rgba(43, 38, 34, 0.1);
  }

  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }

  .logo-group {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    font-size: 1.2rem;
    font-style: italic;
  }

  .logo-group img {
    height: 32px;
    border-radius: 4px;
  }

  .nav-links {
    display: none;
    gap: 20px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
  }
  
  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    font-size: 0.95rem;
    font-weight: bold;
    color: var(--text-main);
    transition: color 0.3s;
  }

  .nav-links a:hover {
    color: var(--accent-orange);
  }

  /* Hero Section */
  .hero {
    padding-top: 140px;
    padding-bottom: 100px;
    text-align: center;
    background: radial-gradient(circle at center, #fff0e6 0%, var(--bg-color) 70%);
    overflow: hidden;
  }

  .planet-decoration {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    border-radius: 50%;
    border: 2px solid rgba(229, 89, 46, 0.2);
    border-bottom: none;
    z-index: -1;
    pointer-events: none;
  }

  .planet-decoration::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 40px;
    background: radial-gradient(ellipse at center, rgba(229, 89, 46, 0.1) 0%, transparent 70%);
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--text-main);
  }

  .hero h1 span {
    color: var(--accent-orange);
  }

  .hero p.subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px;
  }

  .download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 30px;
    transition: transform 0.2s, background-color 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
  }

  .btn-primary {
    background-color: var(--accent-orange);
    color: #fff;
  }

  .btn-primary:hover {
    background-color: #c94b23;
    transform: translateY(-2px);
  }

  .btn-outline {
    background-color: transparent;
    color: var(--accent-orange);
    border-color: var(--accent-orange);
  }

  .btn-outline:hover {
    background-color: rgba(229, 89, 46, 0.1);
    transform: translateY(-2px);
  }

  /* Section Titles */
  .section-title {
    font-size: 2.2rem;
    margin-bottom: 40px;
    text-align: center;
  }

  /* Grids & Cards */
  .grid-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .card {
    background-color: var(--accent-light);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
  }

  .card img {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 20px;
    display: block;
  }

  .card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
  }

  /* Gallery / Showcase */
  .poster-wall {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 20px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  
  .poster-wall::-webkit-scrollbar {
    display: none;
  }

  .poster-item {
    flex: 0 0 280px;
    scroll-snap-align: start;
  }

  .poster-item img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: block;
  }

  /* Feature Blocks */
  .feature-block {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
    margin-bottom: 60px;
  }

  .feature-block.reverse {
    flex-direction: column;
  }

  .feature-text {
    flex: 1;
  }

  .feature-img {
    flex: 1;
    width: 100%;
  }

  .feature-img img {
    width: 100%;
    border-radius: 20px;
    display: block;
  }

  /* Modal */
  .modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
  }

  .modal-content {
    background-color: #fff;
    border-radius: 15px;
    padding: 30px;
    max-width: 400px;
    width: 100%;
    text-align: center;
  }

  .modal-content p {
    color: var(--text-main);
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.5;
  }

  .copy-box {
    display: flex;
    border: 1px solid #ccc;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
  }

  .copy-box input {
    flex: 1;
    border: none;
    padding: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
    background-color: #f9f9f9;
    outline: none;
  }

  .copy-box button {
    background-color: var(--accent-orange);
    color: #fff;
    border: none;
    padding: 0 20px;
    font-weight: bold;
    cursor: pointer;
  }

  .modal-close {
    background-color: #eee;
    color: var(--text-main);
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
  }

  /* Footer */
  footer {
    background-color: #2b2622;
    color: #a09b96;
    padding: 40px 0;
    font-size: 0.9rem;
    text-align: center;
  }

  footer a {
    color: #a09b96;
    text-decoration: underline;
  }

  footer p {
    color: #a09b96;
    margin-bottom: 10px;
    font-size: 0.9rem;
  }

  .footer-time {
    font-size: 0.8rem;
    color: #7a7570;
    margin-top: 10px;
  }

  /* Responsive */
  @media (min-width: 768px) {
    .nav-links {
      display: flex;
    }
    .hero h1 {
      font-size: 4rem;
    }
    .grid-card {
      grid-template-columns: repeat(2, 1fr);
    }
    .feature-block {
      flex-direction: row;
      margin-bottom: 100px;
    }
    .feature-block.reverse {
      flex-direction: row-reverse;
    }
    .poster-item {
      flex: 0 0 320px;
    }
  }

  @media (min-width: 1024px) {
    .grid-card {
      grid-template-columns: repeat(3, 1fr);
    }
    .hero h1 {
      font-size: 5rem;
    }
    .poster-item {
      flex: 0 0 360px;
    }
  }