:root {
      --primary: #38A169;
      --secondary: #4FD1C5;
      --accent: #68D391;
      --text-dark: #22543D;
      --text-light: #48BB78;
      --bg-light: #F8FAFC;
      --white: #FFFFFF;
      --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
      --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.3s ease;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: 'Noto Sans TC', sans-serif;
      line-height: 1.6;
      color: var(--text-dark);
      background: var(--bg-light);
      position: relative;
      min-height: 100vh;
      overflow-x: hidden;
    }
    .background-blur {
      position: fixed;
      z-index: 0;
      inset: 0;
      width: 100vw;
      height: 100vh;
      background: 
        linear-gradient(rgba(255,255,255,0.75), rgba(255,255,255,0.85)),
        url('https://i.meee.com.tw/PnQDSwf.jpg') center center / cover no-repeat;
      filter: brightness(1.13) saturate(1.04);
      opacity: 1;
      pointer-events: none;
      transition: filter 0.3s, opacity 0.3s;
    }
    .content-relative {
      position: relative;
      z-index: 1;
    }
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 80px;
      background: var(--white);
      box-shadow: var(--shadow-sm);
      z-index: 1000;
      transition: var(--transition);
    }
    .navbar-container {
      max-width: 1200px;
      margin: 0 auto;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 2rem;
    }
    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .navbar-logo {
      width: 45px;
      height: 45px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .navbar-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 1px;
      transition: font-size 0.3s;
    }
    .navbar-links a {
      color: var(--text-dark);
      text-decoration: none;
      padding: 0.5rem 1rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .navbar-links a:hover {
      background: var(--gradient);
      color: var(--white);
    }
    .hero {
      min-height: 100vh;
      padding-top: 100px;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }
    .hero-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .hero-content {
      animation: fadeInUp 1s ease;
    }
    .hero-title {
      font-size: 3.5rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.2;
    }
    @media (max-width: 1024px) {
      .hero-title {
        display: none;
      }
    }
    .feature-cards {
      display: grid;
      gap: 1.5rem;
      margin-bottom: 2rem;
    }
    .feature-card {
      background: var(--white);
      padding: 1.5rem;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      display: flex;
      align-items: center;
      gap: 1rem;
      color: var(--text-dark);
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      color: var(--primary);
    }
    .feature-card i {
      font-size: 1.5rem;
      color: var(--secondary);
      background: rgba(72,187,120,0.10);
      padding: 1rem;
      border-radius: var(--radius-sm);
    }
    .hero-buttons {
      display: flex;
      gap: 1rem;
    }
    .btn {
      padding: 1rem 2rem;
      border-radius: var(--radius-md);
      font-weight: 500;
      text-decoration: none;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }
    .btn-primary {
      background: var(--gradient);
      color: var(--white);
      box-shadow: var(--shadow-md);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }
    .btn-secondary {
      background: var(--white);
      color: var(--primary);
      border: 2px solid var(--primary);
    }
    .btn-secondary:hover {
      background: var(--primary);
      color: var(--white);
    }
    .hero-image {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
      width: 100%;
      min-height: 650px;
      margin-top: 0;
    }
    .iphone-frame {
      position: relative;
      width: 420px;
      height: 840px;
      background: #fff;
      border: 18px solid #e5e6ea;
      border-radius: 70px;
      box-shadow: 0 12px 36px rgba(34,84,61,0.18), 0 2.5px 0 #bbb inset;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      margin: 0 auto;
      z-index: 1;
      transition: width 0.3s, height 0.3s, border-radius 0.3s, border-width 0.3s;
    }
    .iphone-notch {
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 170px;
      height: 38px;
      background: #222;
      border-radius: 0 0 38px 38px;
      z-index: 10;
      margin-top: 0px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .iphone-notch::before,
    .iphone-notch::after {
      content: '';
      position: absolute;
      border-radius: 8px;
      background: #444;
    }
    .iphone-notch::before {
      left: 55px;
      top: 16px;
      width: 45px;
      height: 7px;
    }
    .iphone-notch::after {
      right: 55px;
      top: 13px;
      width: 13px;
      height: 13px;
      background: #222;
      border-radius: 50%;
      border: 2px solid #555;
    }
    .iphone-frame::before,
    .iphone-frame::after {
      content: '';
      position: absolute;
      background: #bbb;
      border-radius: 2px;
      z-index: 10;
    }
    .iphone-frame::before {
      left: -16px;
      top: 160px;
      width: 6px;
      height: 80px;
    }
    .iphone-frame::after {
      right: -16px;
      top: 340px;
      width: 6px;
      height: 120px;
    }
    .carousel-image {
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      margin: auto;
      width: 92%;
      height: 96%;
      display: block;
      object-fit: cover;
      border-radius: 60px;
      box-shadow: 0 3px 16px rgba(34,84,61,0.10);
      opacity: 0;
      transition: opacity 0.7s, border-radius 0.3s;
      z-index: 2;
      background: #fff;
      pointer-events: none;
    }
    .carousel-image.active {
      opacity: 1;
      z-index: 3;
      pointer-events: all;
    }
    .carousel-dots {
      position: absolute;
      left: 50%;
      bottom: 28px;
      transform: translateX(-50%);
      display: flex;
      gap: 14px;
      z-index: 10;
      background: none;
    }
    .carousel-dot {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--secondary);
      opacity: 0.35;
      border: none;
      cursor: pointer;
      transition: opacity 0.2s, background 0.2s;
      outline: none;
    }
    .carousel-dot.active {
      opacity: 1;
      background: var(--primary);
    }
    .hero-image .iphone-frame {
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .install-guide {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 3rem;
      max-width: 1200px;
      margin: 4rem auto;
      box-shadow: var(--shadow-lg);
      color: var(--text-dark);
    }
    .install-guide h2 {
      font-size: 2rem;
      color: var(--primary);
      margin-bottom: 2rem;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .install-guide h3 {
      font-size: 1.5rem;
      color: var(--secondary);
      margin: 2rem 0 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .install-guide ul {
      list-style: none;
    }
    .install-guide li {
      margin: 1rem 0;
      padding-left: 2rem;
      position: relative;
    }
    .install-guide li::before {
      content: "•";
      color: var(--accent);
      font-size: 1.5rem;
      position: absolute;
      left: 0;
    }
    .note {
      background: rgba(72,187,120,0.07);
      padding: 1.5rem;
      border-radius: var(--radius-md);
      margin-top: 2rem;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .install-video-container {
      margin: 2rem 0 0 0;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column;
      gap: 1rem;
    }
    .install-video-container iframe {
      width: 100%;
      max-width: 450px;
      aspect-ratio: 9/16;
      border-radius: 18px;
      box-shadow: var(--shadow-md);
      border: none;
      background: #000;
    }
    .install-video-caption {
      color: var(--primary);
      font-weight: 500;
      font-size: 1.1rem;
      text-align: center;
    }
    footer {
      background: var(--white);
      padding: 2rem;
      text-align: center;
      color: var(--text-light);
      box-shadow: var(--shadow-sm);
    }
    footer i {
      color: var(--accent);
    }
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    @media (max-width: 1280px) {
      .hero-image {
        min-height: 540px;
      }
      .iphone-frame {
        width: 340px;
        height: 680px;
        border-radius: 46px;
        border-width: 12px;
      }
      .carousel-image {
        border-radius: 36px;
      }
      .iphone-notch {
        width: 100px;
        height: 20px;
        border-radius: 0 0 16px 16px;
      }
      .carousel-dots {
        bottom: 18px;
      }
      .iphone-frame::before { left: -8px; top: 80px; width: 3px; height: 36px;}
      .iphone-frame::after { right: -8px; top: 170px; width: 3px; height: 48px;}
    }
    @media (max-width: 1024px) {
      .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .hero-image {
        grid-row: 1;
        margin-bottom: 2rem;
        min-height: 420px;
      }
      .iphone-frame {
        width: 260px;
        height: 500px;
        border-radius: 30px;
        border-width: 8px;
      }
      .carousel-image {
        border-radius: 18px;
      }
      .iphone-notch {
        width: 60px;
        height: 10px;
        border-radius: 0 0 8px 8px;
      }
      .carousel-dots {
        bottom: 12px;
      }
      .iphone-frame::before { left: -5px; top: 45px; width: 2px; height: 16px;}
      .iphone-frame::after { right: -5px; top: 90px; width: 2px; height: 22px;}
      .navbar-title {
        font-size: 1.05rem;
      }
      .navbar {
        background: rgba(255,255,255,0.55);
        backdrop-filter: blur(2px);
      }
    }
    @media (max-width: 700px) {
      .hero-image {
        min-height: 500px;
      }
      .iphone-frame {
        width: 320px !important;
        height: 620px !important;
        border-radius: 30px !important;
        border-width: 10px !important;
      }
      .carousel-image {
        border-radius: 20px;
      }
      .iphone-notch {
        width: 60px;
        height: 13px;
        border-radius: 0 0 10px 10px;
      }
      .carousel-dots {
        bottom: 21px;
      }
      .iphone-frame::before { left: -6px; top: 54px; width: 3px; height: 19px;}
      .iphone-frame::after { right: -6px; top: 103px; width: 3px; height: 25px;}
      .navbar-title {
        font-size: 0.9rem;
      }
      .navbar {
        background: rgba(255,255,255,0.4);
        backdrop-filter: blur(2px);
      }
    }
    @media (max-width: 480px) {
      .hero-buttons {
        flex-direction: column;
      }
      .btn {
        width: 100%;
        justify-content: center;
      }
      .hero-image {
        min-height: 350px;
      }
      .iphone-frame {
        width: 210px !important;
        height: 410px !important;
        border-radius: 15px !important;
        border-width: 6px !important;
      }
      .carousel-image {
        border-radius: 10px;
      }
      .iphone-notch {
        width: 32px;
        height: 7px;
        border-radius: 0 0 4px 4px;
      }
      .carousel-dots {
        bottom: 9px;
      }
      .iphone-frame::before { left: -3px; top: 20px; width: 2px; height: 6px;}
      .iphone-frame::after { right: -3px; top: 38px; width: 2px; height: 8px;}
      .navbar-title {
        font-size: 0.78rem;
      }
      .navbar {
        background: rgba(255,255,255,0.22);
        backdrop-filter: blur(2px);
      }
    }
    #pwa-prompt {
      display: none !important;
    }