:root {
  --primary-color: #00b587;
  --accent-color: #FF6584;
  --bg-color: #c0c0c0;
  --bar-bg: #fff;
  --bar-shadow: 0 2px 8px rgba(0,0,0,0.04);
  --btn-bg: var(--primary-color);
  --btn-color: #fff;
  --card-bg: #fff;
  --card-radius: 14px;
  --card-shadow: 0 2px 12px rgba(0,0,0,0.06);
  --font-main: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg-color);
  font-family: var(--font-main);
  color: #222;
}

.fixed-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bar-bg);
  box-shadow: var(--bar-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  padding: 0 18px;
}
.bar-left {
  display: flex;
  align-items: center;
}
.logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  margin-right: 10px;
  background: #eee;
  object-fit: cover;
}
.app-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
}
.download-btn {
  background: var(--btn-bg);
  color: var(--btn-color);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(108,99,255,0.08);
  transition: background 0.2s;
}
.download-btn:active {
  background: var(--accent-color);
}

.main-content {
  padding-top: 64px;
  max-width: 480px;
  margin: 0 auto;
}
.banner {
  margin: 16px 12px 12px 12px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.banner-img {
  width: 100%;
  display: block;
}
.card-row {
  display: flex;
  gap: 12px;
  margin: 0 12px 16px 12px;
}
.card {
  flex: 1;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.card img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
}
.card-title {
  font-size: 15px;
  font-weight: 500;
  color: #333;
  padding: 8px 0 10px 0;
  text-align: center;
}

/* 下载弹窗遮罩 */
.modal-mask {
  position: fixed;
  z-index: 200;
  left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.25);
}

/* 下载弹窗主体 */
.download-modal {
  position: fixed;
  z-index: 201;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 92vw;
  max-width: 420px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.13);
  padding: 22px 18px 18px 18px;
  box-sizing: border-box;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.modal-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  margin-right: 10px;
  object-fit: cover;
}
.modal-title {
  font-size: 19px;
  font-weight: 700;
  color: #223;
}
.modal-section {
  margin-bottom: 18px;
}
.modal-label {
  font-size: 16px;
  font-weight: 600;
  color: #223;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}
.modal-ver {
  font-size: 13px;
  color: #888;
  margin-left: 4px;
}
.modal-btn {
  display: flex;
  align-items: center;
  background: #f6f8fa;
  color: #223;
  font-size: 15px;
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 10px;
  text-decoration: none;
  font-weight: 500;
  border: 1px solid #e3e6eb;
  transition: background 0.2s, color 0.2s;
}
.modal-btn:not(.disabled):active {
  background: var(--primary-color);
  color: #fff;
}
.modal-btn.disabled {
  color: #bbb;
  background: #f6f8fa;
  border: 1px solid #f0f0f0;
  pointer-events: none;
}
.modal-label .fa,
.modal-btn .fa {
  font-size: 20px;
  margin-right: 7px;
  vertical-align: middle;
  color: #333;
} 
.fa-android {
  color: #3ddc84 !important;  
}