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

html,
body {
  width: 100%;
  min-height: 100%;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  background: #f5f5f5;
  color: #333;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

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

button,
textarea {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}

.phone {
  width: 100%;
  max-width: 414px;
  min-height: 100vh;
  margin: 0 auto;
  background: #f5f5f5;
  position: relative;
  overflow-x: hidden;
}

/* ===== Nav ===== */
.nav {
  height: 44px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  border-bottom: 1px solid #ececec;
  z-index: 10;
}

.nav-title {
  font-size: 17px;
  font-weight: 600;
  color: #000;
  letter-spacing: 0.3px;
}

.nav-back {
  position: absolute;
  left: 0;
  top: 0;
  width: 46px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  z-index: 2;
}

.nav-back::before {
  content: "";
  width: 11px;
  height: 11px;
  border-left: 2px solid #000;
  border-bottom: 2px solid #000;
  transform: rotate(45deg);
  margin-left: 4px;
}

.nav-more {
  position: absolute;
  right: 0;
  top: 0;
  width: 46px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  z-index: 2;
}

.nav-more i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #000;
  display: block;
}