/* 导入字体 */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap");

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

img {
  display: block;
}

li {
  list-style: none;
}

html {
  font-family: "Inter", serif;
  font-size: 14px;
}

:root {
  --color-green: hsl(75, 94%, 57%);
  --color-white: hsl(0, 0%, 100%);
  --color-grey-700: hsl(0, 0%, 20%);
  --color-grey-800: hsl(0, 0%, 12%);
  --color-grey-900: hsl(0, 0%, 8%);
}

body {
  /* 卡片居中 */
  display: flex;
  justify-content: center;
  align-items: center;

  /* 背景 */
  width: 100%;
  min-height: 100vh;
  background: var(--color-grey-900);
}

main {
  width: 400px;
  border-radius: 10px;
  background: var(--color-grey-800);
  padding-inline: 3rem;
  padding-top: 40px;
  padding-bottom: 2rem;
}

article img {
  width: 90px;
  border-radius: 50%;
}

article h1 {
  margin-top: 26px;
  margin-bottom: 10px;

  font-size: 2rem;
}

article h2 {
  margin-bottom: 26px;

  font-size: 1rem;
}

article p {
  margin-bottom: 1.5rem;
}

/* 内容居中 */
article h1,
article h2,
article p,
li {
  text-align: center;
}

article img {
  margin: 0 auto;
}

li {
  border-radius: 5px;
  height: 45px;

  margin-bottom: 1rem;
}

ul a {
  text-decoration: none;
  font-weight: 700;
  background: var(--color-grey-700);
  color: var(--color-white);

  width: 100%;
  height: 100%;

  display: flex;
  justify-content: center;
  align-items: center;
}

ul a:visited {
  background: var(--color-grey-700);
  color: var(--color-white);
}
ul a:hover {
  background-color: var(--color-green);
  opacity: 0.9;
  color: black;
}

/* 字体 */
h1 {
  color: var(--color-white);
}
h2 {
  color: var(--color-green);
}
p {
  color: var(--color-white);
  opacity: 0.7;
  font-weight: 400;
}

@media (max-width: 768px) {
  body {
    padding: 2rem;
  }
  main {
    width: 100%;
  }
}