* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -moz-osx-font-smoothing: grayscale;
  -moz-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: #ffffff;
  color: #1f1f1f;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans",
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 14px;
  font-weight: 400;
  line-height: 1.4286;
  margin: 0;
}

body::selection,
body ::selection {
  background-color: #c2f5f5;
  color: #1f1f1f;
}

body::-moz-selection,
body ::-moz-selection {
  background-color: #c2f5f5;
  color: #1f1f1f;
}

header {
  background-color: #fff;
  height: 364px;
  padding-bottom: 32px;
  padding-top: 32px;
}

header > div {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
  max-width: 640px;
}

h1 {
  font-family: "Fraunces", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji";
  font-size: 48px;
  line-height: 1.1667;
  margin: 0 0 16px;
  text-align: center;
  text-wrap: balance;
}

form {
  display: flex;
  gap: 8px;
  width: 100%;
}

form > div {
  flex: 1 1 auto;
  position: relative;
}

input {
  background-color: #ffffff;
  border: 1px solid #1f1f1f;
  border-radius: 4px;
  font-family: inherit;
  font-size: 16px;
  height: 48px;
  line-height: 1.5;
  outline: 3px solid transparent;
  padding: 8px 36px 8px 16px;
  transition: border-color 190ms ease, outline-color 190ms ease;
  width: 100%;
}

input::placeholder {
  color: #757575;
}

input:focus {
  border: 1px solid #008060;
}

input:hover {
  border: 1px solid #008060;
}

.button {
  align-items: center;
  appearance: button;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  font-family: inherit;
  margin: 0;
  outline: 3px solid transparent;
  -moz-appearance: button;
  -webkit-appearance: button;
}

.button:focus {
  outline-color: #5ee8e8;
}

.button:focus:not(:focus-visible) {
  outline-color: transparent;
}

.button:focus-visible {
  outline-color: #5ee8e8;
}

.button-clear {
  background-color: transparent;
  border: none;
  color: #1f1f1f;
  font-size: 28px;
  opacity: 0;
  padding: 0;
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  transition: color 190ms ease, opacity 190ms ease, visibility 190ms ease,
    outline-color 190ms ease;
  visibility: hidden;
}

.button-clear.visible {
  opacity: 1;
  visibility: visible;
}

.button-clear:hover {
  color: #2e2e2e;
}

.button-clear:active {
  color: #454545;
}

.button-search {
  background-color: #1f1f1f;
  border: 1px solid #1f1f1f;
  color: #ffffff;
  flex: 0 0 auto;
  flex-direction: row;
  font-size: 16px;
  font-weight: 600;
  gap: 8px;
  height: 48px;
  line-height: 1.5;
  padding-left: 16px;
  padding-right: 16px;
  transition: background-color 190ms ease, border-color 190ms ease,
    outline-color 190ms ease;
}

.button-search:hover {
  background-color: #2e2e2e;
  border-color: #2e2e2e;
}

.button-search:active {
  background-color: #454545;
  border-color: #454545;
}

.button-search > svg {
  font-size: 20px;
}

.searching {
  animation: searching 1900ms infinite ease-in-out;
}

@keyframes searching {
  0% {
    transform: rotate(0deg) translateX(4px) rotate(0deg);
  }

  100% {
    transform: rotate(360deg) translateX(4px) rotate(-360deg);
  }
}

.messages {
  background: linear-gradient(#fff 50%, #ffffff 50%);
  margin-bottom: 24px;
  margin-top: -64px;
}

.messages > div {
  margin-left: auto;
  margin-right: auto;
  max-width: 640px;
}

.message {
  align-items: center;
  background-color: #ffffff;
  border-radius: 4px;
  box-shadow: 3px -8px 6px -2px rgba(0, 0, 0, 0.05),
    0px 12px 16px -4px rgba(0, 0, 0, 0.1), 0px 2px 4px -2px rgba(0, 0, 0, 0.06),
    0px 4px 8px -2px rgba(0, 0, 0, 0.1);
  display: grid;
  gap: 12px 8px;
  grid-template-columns: 16px 100px auto;
  min-height: 64px;
  padding: 16px;
  padding-left: 12px;
  word-wrap: break-word;
}

.message > * {
  min-width: 0;
}

.message-positive {
  border-left: 4px solid #008060;
}

.message-negative {
  border-left: 4px solid #ff7e75;
}

.message-informative {
  border-left: 4px solid #53b1fd;
}

.message-notice {
  border-left: 4px solid #fdb021;
}

.message-icon {
  font-size: 16px;
}

.message-positive .message-icon {
  color: #27916e;
}

.message-negative .message-icon {
  color: #ce4036;
}

.message-informative .message-icon {
  color: #175cd3;
}

.message-notice .message-icon {
  color: #ee7620;
}

.message-title {
  font-size: 14px;
  font-weight: 600;
  grid-column: 2 / span 2;
  margin: 0;
}

a {
  color: #1f1f1f;
  outline: 3px solid transparent;
  outline-offset: 4px;
  transition: color 190ms ease, outline-color 190ms ease;
}

a:hover {
  color: #008060;
}

a:focus {
  outline-color: #5ee8e8;
}

a:focus:not(:focus-visible) {
  outline-color: transparent;
}

a:focus-visible {
  outline-color: #5ee8e8;
}

.message-label {
  color: #757575;
  grid-column: 2;
}

.message-value-status > div,
.message-value-name-servers > div {
  position: relative;
}

.message-value-name-servers > div {
  word-break: break-all;
}

.message-tags {
  display: flex;
  gap: 6px 8px;
  grid-column: 2 / span 2;
  flex-wrap: wrap;
}

.message-tag {
  align-items: center;
  border-radius: 4px;
  display: flex;
  font-size: 12px;
  font-weight: 500;
  gap: 4px;
  line-height: 24px;
  padding: 0 6px;
}

.message-tag-gray {
  background-color: #f3f4f6;
  color: #4a5565;
}

.message-tag-red {
  background-color: #ffe2e2;
  color: #c10007;
}

.message-tag-yellow {
  background-color: #fef9c2;
  color: #894b00;
}

.message-tag-green {
  background-color: #dcfce7;
  color: #008236;
}

.message-tag-blue {
  background-color: #dbeafe;
  color: #1447e6;
}

.message-tag-indigo {
  background-color: #e0e7ff;
  color: #432dd7;
}

.message-tag-purple {
  background-color: #f3e8ff;
  color: #8200db;
}

.message-tag-pink {
  background-color: #fce7f3;
  color: #c6005c;
}

.results {
  margin-left: auto;
  margin-right: auto;
  margin-top: 48px;
  max-width: 1000px;
  padding-left: 20px;
  padding-right: 20px;
}

#raw-data {
  border: 1px solid #2e2e2e;
  border-radius: 8px;
  font-size: 16px;
  hyphens: none;
  line-height: 1.5;
  padding: 16px;
  white-space: pre-wrap;
  word-wrap: break-word;
  -webkit-hyphens: none;
}

#raw-data div {
  border-radius: 4px;
  outline: 3px solid transparent;
  padding-left: 8px;
  padding-right: 8px;
  transition: background-color 190ms ease, outline-color 190ms ease;
}

#raw-data div:hover {
  background-color: #fff;
  outline-color: #5ee8e8;
}

footer {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 18px;
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
  position: fixed;
  bottom: 0;
  justify-content: center;
  left: 0;
  right: 0;
}

@media (max-width: 768px) {
  header {
    height: unset;
  }

  header > div {
    padding-left: 16px;
    padding-right: 16px;
  }

  h1 {
    font-size: 36px;
    line-height: 1.2222;
  }

  .messages {
    margin-top: unset;
  }

  .messages > div {
    padding-left: 16px;
    padding-right: 16px;
  }

  .message {
    min-height: unset;
  }

  .results {
    margin-top: 32px;
    padding-left: 16px;
    padding-right: 16px;
  }

  #raw-data {
    font-size: 14px;
    line-height: 1.4286;
  }

  footer {
    margin-bottom: 32px;
    margin-top: 32px;
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 640px) {
  .button-search > span {
    border: 0 !important;
    clip: rect(0, 0, 0, 0) !important;
    height: 1px !important;
    margin: -1px !important;
    overflow: hidden !important;
    padding: 0 !important;
    position: absolute !important;
    white-space: nowrap !important;
    width: 1px !important;
  }

  .message-value-status > div:not(:only-child):after,
  .message-value-name-servers > div:not(:only-child)::after {
    background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2216%22%20height%3D%2216%22%20viewBox%3D%220%200%2016%2016%22%20fill%3D%22%23757575%22%3E%3Cpath%20d%3D%22M14.5%201.5a.5.5%200%200%201%20.5.5v4.8a2.5%202.5%200%200%201-2.5%202.5H2.707l3.347%203.346a.5.5%200%200%201-.708.708l-4.2-4.2a.5.5%200%200%201%200-.708l4-4a.5.5%200%201%201%20.708.708L2.707%208.3H12.5A1.5%201.5%200%200%200%2014%206.8V2a.5.5%200%200%201%20.5-.5%22%20fill-rule%3D%22evenodd%22%2F%3E%3C%2Fsvg%3E");
    background-size: cover;
    bottom: 5px;
    content: "";
    display: inline-block;
    height: 8px;
    margin-left: 2px;
    position: absolute;
    width: 8px;
  }

  #raw-data {
    white-space: pre-line;
  }
}

.tippy-box {
  background-color: #1f1f1f;
  font-size: 12px;
  font-weight: 500;
}

.tippy-content {
  padding: 4px 8px;
}
footer a {
  color: rgb(37 99 235 / var(--tw-text-opacity, 1));
  font-size: 14px;
  text-decoration: none;
  font-weight: 600;
}

/* 顶部导航菜单样式 */
.top-menu {
  background-color: #ffffff;
  border-bottom: 1px solid #e5e5e5;
  padding: 16px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.06);
  display: flex;
  justify-content: center;
  align-items: center;
}

.top-menu-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 1200px;
}

.top-menu-container > a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #1f1f1f;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid #e5e5e5;
  background-color: #fafafa;
  transition: all 190ms ease;
  outline: 3px solid transparent;
  white-space: nowrap;
}

.top-menu-container > a:hover {
  color: #008060;
  background-color: #f0fdf4;
  border-color: #008060;
  transform: translateY(-1px);
}

.top-menu-container > a:focus {
  outline-color: #5ee8e8;
}

.top-menu-container > a:focus:not(:focus-visible) {
  outline-color: transparent;
}

.top-menu-container > a:focus-visible {
  outline-color: #5ee8e8;
}

.top-menu-container > a > svg {
  flex-shrink: 0;
  font-size: 16px;
  opacity: 0.7;
  transition: opacity 190ms ease;
}

.top-menu-container > a:hover > svg {
  opacity: 1;
}

.top-menu-container > a > span {
  white-space: nowrap;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .top-menu {
    padding: 12px 16px;
  }

  .top-menu-container {
    gap: 8px;
  }

  .top-menu-container > a {
    font-size: 13px;
    padding: 8px 14px;
  }

  .top-menu-container > a > svg {
    font-size: 15px;
  }
}

@media (max-width: 640px) {
  .top-menu {
    padding: 10px 12px;
  }

  .top-menu-container {
    gap: 6px;
  }

  .top-menu-container > a {
    font-size: 12px;
    padding: 8px 12px;
  }

  .top-menu-container > a > svg {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .top-menu-container > a > span {
    display: none;
  }

  .top-menu-container {
    gap: 6px;
  }

  .top-menu-container > a {
    padding: 10px;
    min-width: 44px;
    justify-content: center;
  }

  .top-menu-container > a > svg {
    font-size: 18px;
  }
}