/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */

    /* Document
   ========================================================================== */

    /**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */

    html {
      line-height: 1.15;
      /* 1 */
      -webkit-text-size-adjust: 100%;
      /* 2 */
    }

    /* Sections
     ========================================================================== */

    /**
   * Remove the margin in all browsers.
   */
    * {
      margin: 0;
      padding: 0;
    }

    body {
      margin: 0;
    }

    /**
   * Render the `main` element consistently in IE.
   */

    main {
      display: block;
    }

    /**
   * Correct the font size and margin on `h1` elements within `section` and
   * `article` contexts in Chrome, Firefox, and Safari.
   */

    h1 {
      font-size: 2em;
      margin: 0.67em 0;
    }

    /* Grouping content
     ========================================================================== */

    /**
   * 1. Add the correct box sizing in Firefox.
   * 2. Show the overflow in Edge and IE.
   */

    hr {
      box-sizing: content-box;
      /* 1 */
      height: 0;
      /* 1 */
      overflow: visible;
      /* 2 */
    }

    /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   */

    pre {
      font-family: monospace, monospace;
      /* 1 */
      font-size: 1em;
      /* 2 */
    }

    /* Text-level semantics
     ========================================================================== */

    /**
   * Remove the gray background on active links in IE 10.
   */

    a {
      background-color: transparent;
    }

    /**
   * 1. Remove the bottom border in Chrome 57-
   * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
   */

    abbr[title] {
      border-bottom: none;
      /* 1 */
      text-decoration: underline;
      /* 2 */
      text-decoration: underline dotted;
      /* 2 */
    }

    /**
   * Add the correct font weight in Chrome, Edge, and Safari.
   */

    b,
    strong {
      font-weight: bolder;
    }

    /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   */

    code,
    kbd,
    samp {
      font-family: monospace, monospace;
      /* 1 */
      font-size: 1em;
      /* 2 */
    }

    /**
   * Add the correct font size in all browsers.
   */

    small {
      font-size: 80%;
    }

    /**
   * Prevent `sub` and `sup` elements from affecting the line height in
   * all browsers.
   */

    sub,
    sup {
      font-size: 75%;
      line-height: 0;
      position: relative;
      vertical-align: baseline;
    }

    sub {
      bottom: -0.25em;
    }

    sup {
      top: -0.5em;
    }

    /* Embedded content
     ========================================================================== */

    /**
   * Remove the border on images inside links in IE 10.
   */

    img {
      border-style: none;
    }

    /* Forms
     ========================================================================== */

    /**
   * 1. Change the font styles in all browsers.
   * 2. Remove the margin in Firefox and Safari.
   */

    button,
    input,
    optgroup,
    select,
    textarea {
      font-family: inherit;
      /* 1 */
      font-size: 100%;
      /* 1 */
      line-height: 1.15;
      /* 1 */
      margin: 0;
      /* 2 */
    }

    /**
   * Show the overflow in IE.
   * 1. Show the overflow in Edge.
   */

    button,
    input {
      /* 1 */
      overflow: visible;
    }

    /**
   * Remove the inheritance of text transform in Edge, Firefox, and IE.
   * 1. Remove the inheritance of text transform in Firefox.
   */

    button,
    select {
      /* 1 */
      text-transform: none;
    }

    /**
   * Correct the inability to style clickable types in iOS and Safari.
   */

    button,
    [type="button"],
    [type="reset"],
    [type="submit"] {
      -webkit-appearance: button;
    }

    /**
   * Remove the inner border and padding in Firefox.
   */

    button::-moz-focus-inner,
    [type="button"]::-moz-focus-inner,
    [type="reset"]::-moz-focus-inner,
    [type="submit"]::-moz-focus-inner {
      border-style: none;
      padding: 0;
    }

    /**
   * Restore the focus styles unset by the previous rule.
   */

    button:-moz-focusring,
    [type="button"]:-moz-focusring,
    [type="reset"]:-moz-focusring,
    [type="submit"]:-moz-focusring {
      outline: 1px dotted ButtonText;
    }

    /**
   * Correct the padding in Firefox.
   */

    fieldset {
      padding: 0.35em 0.75em 0.625em;
    }

    /**
   * 1. Correct the text wrapping in Edge and IE.
   * 2. Correct the color inheritance from `fieldset` elements in IE.
   * 3. Remove the padding so developers are not caught out when they zero out
   *    `fieldset` elements in all browsers.
   */

    legend {
      box-sizing: border-box;
      /* 1 */
      color: inherit;
      /* 2 */
      display: table;
      /* 1 */
      max-width: 100%;
      /* 1 */
      padding: 0;
      /* 3 */
      white-space: normal;
      /* 1 */
    }

    /**
   * Add the correct vertical alignment in Chrome, Firefox, and Opera.
   */

    progress {
      vertical-align: baseline;
    }

    /**
   * Remove the default vertical scrollbar in IE 10+.
   */

    textarea {
      overflow: auto;
    }

    /**
   * 1. Add the correct box sizing in IE 10.
   * 2. Remove the padding in IE 10.
   */

    [type="checkbox"],
    [type="radio"] {
      box-sizing: border-box;
      /* 1 */
      padding: 0;
      /* 2 */
    }

    /**
   * Correct the cursor style of increment and decrement buttons in Chrome.
   */

    [type="number"]::-webkit-inner-spin-button,
    [type="number"]::-webkit-outer-spin-button {
      height: auto;
    }

    /**
   * 1. Correct the odd appearance in Chrome and Safari.
   * 2. Correct the outline style in Safari.
   */

    [type="search"] {
      -webkit-appearance: textfield;
      /* 1 */
      outline-offset: -2px;
      /* 2 */
    }

    /**
   * Remove the inner padding in Chrome and Safari on macOS.
   */

    [type="search"]::-webkit-search-decoration {
      -webkit-appearance: none;
    }

    /**
   * 1. Correct the inability to style clickable types in iOS and Safari.
   * 2. Change font properties to `inherit` in Safari.
   */

    ::-webkit-file-upload-button {
      -webkit-appearance: button;
      /* 1 */
      font: inherit;
      /* 2 */
    }

    /* Interactive
     ========================================================================== */

    /*
   * Add the correct display in Edge, IE 10+, and Firefox.
   */

    details {
      display: block;
    }

    /*
   * Add the correct display in all browsers.
   */

    summary {
      display: list-item;
    }

    /* Misc
     ========================================================================== */

    /**
   * Add the correct display in IE 10+.
   */

    template {
      display: none;
    }

    /**
   * Add the correct display in IE 10.
   */

    [hidden] {
      display: none;
    }

    ul,
    li {
      list-style: none;
    }


    @media (min-width: 1024px) {
      body {
        font-size: 18px
      }
    }

    /*>=1024的设备*/

    @media (min-width: 1100px) {
      body {
        font-size: 20px
      }
    }

    /*>=1100的设备*/
    @media (min-width: 1280px) {
      body {
        font-size: 22px;
      }
    }

    /*>=1280的设备*/

    @media (min-width: 1366px) {

      body {
        font-size: 24px;
      }
    }

    @media (min-width: 1440px) {
      body {
        font-size: 25px !important;
      }
    }

    @media (min-width: 1680px) {
      body {
        font-size: 28px;
      }
    }

    @media (min-width: 1920px) {
      body {
        font-size: 33px;
      }
    }


    button {
      border: 0;

      background-color: transparent;

      outline: none;
    }