body {
  background-color: #f0ebf8;
  font-family: Arial, Helvetica, sans-serif;
}

header,
section,
footer {
  width: 600px;
  margin: 20px auto;
}

header,
form section {
  background-color: white;
  border: 1px solid #ccc;
  border-radius: 5px;
}

header {
  position: relative;
  padding: 30px 30px 20px 30px;
}

form section {
  padding: 30px;
}

h1 {
  font-size: 32px;
}

a {
  text-decoration: none;
}

footer div * {
  color: rgba(0, 0, 0, 0.66);
  text-align: center;
}

footer div {
  margin: 30px 0;
  font-size: 12px;
}

/*  */
/* header 細節 */
/*  */

header::before {
  /* title 裝飾區 */
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  content: "";
  display: block;
  height: 10px;
  background-color: #673ab7;
  border-radius: 5px 5px 0 0;
}

header h2,
header p {
  font-size: 14px;
}

.instruction {
  margin: 15px 0;
}

.login,
.detail {
  color: rgb(26, 115, 232);
}

.save {
  color: rgb(95, 99, 104);
}

.instruction-save::before,
.instruction-save::after {
  /* 灰色裝飾線 */
  position: relative;
  left: -30px;
  content: "";
  display: block;
  width: calc(100% + 60px);
  height: 1px;
  background-color: #ccc;
}

.instruction-save::before {
  margin-bottom: 15px;
}
.instruction-save::after {
  margin-top: 15px;
}

.highlight {
  margin-top: 15px;
  color: rgb(217, 48, 37);
}

/*  */
/* main 細節 */
/*  */

.q-title,
.choice,
.answer {
  font-size: 16px;
}

.q-title {
  display: block;
  margin-bottom: 20px;
}

.q-instruction {
  display: block;
  font-size: 12px;
  color: #70757a;
}

.choice {
  margin-right: 10px;
  margin-top: 10px;
}

.answer {
  display: block;
  margin-top: 10px;
  border: none;
  outline: none;
}

.all-border {
  border: 1px solid #ccc;
  padding: 15px;
  border-radius: 5px;
}

.border-bottom {
  border-bottom: 1px solid #ccc;
}

.btns {
  background-color: transparent;
  border: none;
  padding: 0;
  width: 662px; /* 一格白底問題 content-box: 600px + 左右 padding 各 30px + 左右 border 各  1px */
}

.color-btn,
.transparent-btn {
  border: none;
  border-radius: 5px;
  padding: 10px;
  font-size: 14px;
  cursor: pointer;
  margin-bottom: 20px;
}
.color-btn {
  float: left;
  color: white;
  width: 70px;
  background-color: #673ab7;
}

.transparent-btn {
  float: right;
  color: #673ab7;
  background-color: transparent;
}

.transparent-btn:hover {
  background-color: #eae7f8;
}

/* 清除浮動 */
.notice::before {
  content: "";
  display: block;
  clear: both;
}

.notice {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.66);
}

/*  */
/* footer 細節 */
/*  */

.report {
  margin-top: 5px;
}

.report a {
  text-decoration: underline;
}

.about {
  display: flex;
  flex-direction: row;
  justify-content: center;
}

.logo {
  opacity: 0.65;
  margin-right: 5px;
}

.about span {
  font-size: 22px;
}