* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: #f2f2f2;
  color: #222;
  font-family: "SimSun", "Songti SC", "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.8;
}

.page-header {
  width: min(860px, calc(100% - 32px));
  margin: 24px auto 0;
  padding: 36px 56px 18px;
  background: #fff;
  color: #111;
  text-align: center;
  border: 1px solid #d9d9d9;
  border-bottom: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-header h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0;
}

.page-header .subtitle {
  margin-top: 12px;
  font-size: 14px;
  color: #666;
}

.container {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto 32px;
  padding: 0 0 24px;
  background: #fff;
  border: 1px solid #d9d9d9;
  border-top: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card {
  margin: 0;
  padding: 0 56px;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.card + .card {
  margin-top: 16px;
}

.intro-box,
.notice-bar,
.restrict-box,
.warning-box,
.highlight-box,
.contact-box,
.permission-item,
.security-item,
.func-list li,
.purpose-list li,
.sub-list {
  background: transparent;
  color: inherit;
  border: 1px solid #d9d9d9;
  border-radius: 0;
  box-shadow: none;
}

.intro-box,
.notice-bar,
.restrict-box,
.warning-box,
.highlight-box,
.contact-box {
  padding: 16px 18px;
  margin-bottom: 16px;
}

.intro-box p:last-child,
.contact-box p:last-child,
.restrict-box p:last-child {
  margin-bottom: 0;
}

h2.section-title {
  margin: 28px 0 12px;
  padding: 0;
  border: 0;
  color: #111;
  display: block;
  font-size: 18px;
  font-weight: 700;
}

h2.section-title::before {
  content: none;
}

h3.sub-title,
h4.item-title {
  color: #111;
  font-weight: 700;
}

h3.sub-title {
  margin: 18px 0 8px;
  font-size: 16px;
}

h4.item-title {
  margin: 14px 0 6px;
  font-size: 15px;
}

p {
  margin: 0 0 10px;
  text-align: justify;
}

ul,
ol {
  margin: 0 0 10px;
  padding-left: 24px;
}

li {
  margin-bottom: 6px;
}

.func-list,
.purpose-list {
  list-style: disc;
  padding-left: 24px;
}

.func-list li,
.purpose-list li {
  display: list-item;
  margin-bottom: 8px;
  padding: 8px 10px;
}

.purpose-list li .num {
  display: none;
}

.tag {
  display: inline;
  padding: 0;
  margin-right: 0;
  background: transparent;
  color: inherit;
  border-radius: 0;
  font-size: inherit;
  font-weight: 700;
}

.permission-grid,
.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 10px 0;
}

.permission-item,
.security-item {
  padding: 10px 12px;
}

.permission-item strong,
.security-item strong {
  display: block;
  margin-bottom: 4px;
  color: #111;
}

.permission-item span,
.security-item span {
  color: #222;
}

.sub-list {
  padding: 10px 14px 10px 30px;
}

.info-table {
  width: 100%;
  margin: 10px 0 14px;
  border-collapse: collapse;
  font-size: 15px;
}

.info-table th,
.info-table td {
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  border: 1px solid #bfbfbf;
  color: #222;
  background: transparent;
}

.info-table th:first-child,
.info-table th:last-child,
.info-table tr:last-child td:first-child,
.info-table tr:last-child td:last-child {
  border-radius: 0;
}

.footer {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto 32px;
  padding: 0 56px 24px;
  color: #666;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 700px) {
  .page-header,
  .container,
  .footer {
    width: calc(100% - 20px);
  }

  .page-header {
    margin-top: 10px;
    padding: 24px 20px 14px;
  }

  .card {
    padding: 0 20px;
  }

  .footer {
    padding: 0 20px 20px;
  }

  body {
    font-size: 15px;
  }
}