
    body { margin: 0; background: #f3f4f6; overflow-x: hidden; }
    #page-container { position: relative; margin: 0 auto; padding: 0; overflow: visible; max-width: 100%; }
    .scieee-lazy-chunk { display: block; width: 100%; max-width: 100%; margin: 0 auto 24px auto; overflow-x: hidden; overflow-y: visible; box-sizing: border-box; }
    .scieee-lazy-chunk-content { width: 100%; max-width: 100%; overflow-x: hidden; box-sizing: border-box; }
    .scieee-lazy-chunk style { display: none !important; }
    .scieee-lazy-placeholder { width: 100%; max-width: 900px; margin: 12px auto; padding: 18px; box-sizing: border-box; background: #fff; color: #6b7280; border: 1px solid #e5e7eb; font: 13px system-ui, sans-serif; text-align: center; }
    .scieee-lazy-chunk.is-loaded { min-height: 0 !important; }
    .scieee-lazy-chunk.is-loaded > .scieee-lazy-placeholder { display: none; }
    .pf { margin-left: auto !important; margin-right: auto !important; }
  



/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab filetype=css: */
/*! 
 * Base CSS for pdf2htmlEX
 * Copyright 2012,2013 Lu Wang <coolwanglu@gmail.com> 
 * https://github.com/pdf2htmlEX/pdf2htmlEX/blob/master/share/LICENSE
 */
/* Part 1: Web Page Layout: Free to modify, except for a few of them which are required by pdf2htmlEX.js, see the comments */
#sidebar { /* Sidebar */
  position:absolute;
  top:0;
  left:0;
  bottom:0;
  width:250px;
  padding:0;
  margin:0px;
  overflow:auto;
}
#page-container { /* PDF container */
  position:absolute; /* required for calculating relative positions of pages in pdf2htmlEX.js */
  top:0;
  left:0px;
  margin:0; 
  padding:0;
  border:0; /* required for lazy page loading in pdf2htmlEX.js (page visibility test) */
}
@media screen {
  /* for sidebar */
  #sidebar.opened + #page-container { left:250px; }
  #page-container {
    /* `bottom' and `right' are required for lazy page loading in pdf2htmlEX.js (page visibility test)
     * alternatively you may set width and height
     */
    bottom:0;
    right:0;
    overflow:auto;
  }
  .loading-indicator {
    display:none;
  }
  .loading-indicator.active {
    display:block;
    position:absolute;
    width:64px;
    height:64px;
    top:50%;
    left:50%;
    margin-top:-32px;
    margin-left:-32px;
  }
  .loading-indicator img {
    position:absolute;
    top:0;
    left:0;
    bottom:0;
    right:0;
  }
}
@media print { 
  @page { margin:0; }
  html { margin:0; }
  body { 
    margin:0; 
    -webkit-print-color-adjust:exact; /* enable printing background images for WebKit */
  }
  #sidebar { display:none; }
  #page-container {
    width:auto;
    height:auto;
    overflow:visible;
    background-color:transparent;
  }
  .d { display:none; }
}
/* Part 2: Page Elements: Modify with caution
 * The followings are base classes, some of which are meant to be override by PDF specific classes
 * So do not increase the specificity (e.g. ".classname" -> "#page-container .classname")
 */
.pf { /* page */
  position:relative;
  background-color:white;
  overflow: hidden;
  margin:0; 
  border:0; /* required by pdf2htmlEX.js for page visibility test */
}
.pc { /* content of a page */
  position:absolute;
  border:0;
  padding:0;
  margin:0;
  top:0;
  left:0;
  width:100%;
  height:100%;
  overflow:hidden;
  display:block;
  /* set transform-origin for scaling */
  transform-origin:0% 0%;
  -ms-transform-origin:0% 0%;
  -webkit-transform-origin:0% 0%;
}
.pc.opened { /* used by pdf2htmlEX.js, to show/hide pages */
  display:block;
}
.bf { /* images that occupies the whole page */
  position:absolute;
  border:0;
  margin:0;
  top:0;
  bottom:0;
  width:100%;
  height:100%;
  -ms-user-select:none;
  -moz-user-select:none;
  -webkit-user-select:none;
  user-select:none;
}
.bi { /* images that cover only a part of the page */
  position:absolute;
  border:0;
  margin:0;
  -ms-user-select:none;
  -moz-user-select:none;
  -webkit-user-select:none;
  user-select:none;
}
@media print {
  .pf {
    margin:0;
    box-shadow:none;
    page-break-after:always;
    page-break-inside:avoid;
  }
  @-moz-document url-prefix() {
    /* fix page truncation for FireFox */
    .pf {
      overflow:visible;
      border:1px solid #FFFFFF;
    }
    .pc {overflow:visible;}
  }
}
.c { /* clip box */
  position:absolute;
  border:0;
  padding:0;
  margin:0;
  overflow:hidden;
  display:block;
}
.t { /* text line */
  position:absolute;
  white-space:pre;
  font-size:1px;
  transform-origin:0% 100%;
  -ms-transform-origin:0% 100%;
  -webkit-transform-origin:0% 100%;
  unicode-bidi:bidi-override;/* For rtl languages, e.g. Hebrew, we don't want the default Unicode behaviour */
  -moz-font-feature-settings:"liga" 0;/* We don't want Firefox to recognize ligatures */
}
.t:after { /* webkit #35443 */
  content: '';
}
.t:before { /* Workaround Blink(up to 41)/Webkit bug of word-spacing with leading spaces (chromium #404444 and pdf2htmlEX #412) */
  content: '';
  display: inline-block;
}
.t span { /* text blocks within a line */
  /* Blink(up to 41)/Webkit have bug with negative word-spacing and inline-block (pdf2htmlEX #416), so keep normal span inline. */
  position:relative;
  unicode-bidi:bidi-override; /* For rtl languages, e.g. Hebrew, we don't want the default Unicode behaviour */
}
._ { /* text shift */
  /* Blink(up to 41)/Webkit have bug with inline element, continuous spaces and word-spacing. Workaround by inline-block. */
  display: inline-block;
  color: transparent;
  z-index: -1;
}
/* selection background should not be opaque, for fallback mode */
::selection{
  background: rgba(127,255,255,0.4);
}
::-moz-selection{
  background: rgba(127,255,255,0.4);
}
.pi { /* info for Javascript */
  display:none;
}
.l { /* annotation links */
}
/* transparent color - WebKit */
.d { /* css drawing */
  position:absolute;
  transform-origin:0% 100%;
  -ms-transform-origin:0% 100%;
  -webkit-transform-origin:0% 100%;
}
/* for the forms */
.it {
  border: none;
  background-color: rgba(255, 255, 255, 0.0);
}

.ir:hover {
  cursor: pointer;
}

/* Base CSS END */





/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab filetype=css: */
/*! 
 * Fancy styles for pdf2htmlEX
 * Copyright 2012,2013 Lu Wang <coolwanglu@gmail.com> 
 * https://github.com/pdf2htmlEX/pdf2htmlEX/blob/master/share/LICENSE
 */
@keyframes fadein { from { opacity:0;} to { opacity:1;} }
@-webkit-keyframes fadein { from { opacity:0;} to { opacity:1;} }
@keyframes swing {
  0%  { transform: rotate(0deg); }
  10% { transform: rotate(0deg); }
  90% { transform: rotate(720deg); }
  100%{ transform: rotate(720deg); }
}
@-webkit-keyframes swing {
  0%  { -webkit-transform: rotate(0deg); }
  10% { -webkit-transform: rotate(0deg); }
  90% { -webkit-transform: rotate(720deg); }
  100%{ -webkit-transform: rotate(720deg); }
}
@media screen { 
  #sidebar {
    background-color:#2f3236;
    /* modified from http://philbit.com/svgpatterns/#crossstripes */
    background-image:url("scieee-document-assets/asset_278c76fec4fbf2399910664b.svg");
  }
  #outline {
    font-family:Georgia,Times,"Times New Roman",serif;
    font-size:13px;
    margin:2em 1em;
  }
  #outline ul {
    padding:0;
  }
  #outline li {
    list-style-type:none;
    margin:1em 0;
  }
  #outline li > ul {
    margin-left: 1em;
  }
  #outline a,
  #outline a:visited,
  #outline a:hover,
  #outline a:active {
    line-height:1.2;
    color:#e8e8e8;
    text-overflow:ellipsis;
    white-space:nowrap;
    text-decoration:none;
    display:block;
    overflow:hidden;
    outline:0;
  }
  #outline a:hover {
    color:rgb(0,204,255);
  }
  #page-container {
    background-color:#9e9e9e;
    /* http://philbit.com/svgpatterns/#thinstripes */
    background-image: url("scieee-document-assets/asset_c60347c0de373fe817019620.svg");
    -webkit-transition:left 500ms;
    transition:left 500ms;
  }
  .pf {
    margin: 13px auto;
    box-shadow: 1px 1px 3px 1px #333;
    /* Needed by IE to make box-shadow works * https://developer.mozilla.org/en-US/docs/Web/CSS/box-shadow */
    border-collapse: separate;
  }
  .pc.opened { /* used by pdf2htmlEX.js, to show/hide pages */
    -webkit-animation: fadein 100ms;
    animation: fadein 100ms; 
  }
  .loading-indicator.active {
    /* 
     * use 0.01s instead of 0s,
     * since YUI Compressor will change 0s to 0,
     * which is not recognized by Firefox
     */
    -webkit-animation: swing 1.5s ease-in-out 0.01s infinite alternate none;
    animation: swing 1.5s ease-in-out 0.01s infinite alternate none;
  }
  .checked {
    background: no-repeat url(scieee-document-assets/asset_58a067f15ffcfc2435a4b346.png);
  }
}
/* Fancy CSS END */





.ff0{font-family:sans-serif;visibility:hidden;}
@font-face{font-family:ff1;src:url('chunks/assets/font_8a5acb76fca14d52cf7e24c9.woff2')format("woff");}.ff1{font-family:ff1;line-height:1.090332;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff2;src:url('chunks/assets/font_2d29efa0155b420f486d3a0c.woff2')format("woff");}.ff2{font-family:ff2;line-height:1.090332;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff3;src:url('chunks/assets/font_04e5e03c7a561cf9ca99f7e0.woff2')format("woff");}.ff3{font-family:ff3;line-height:1.030273;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff4;src:url('chunks/assets/font_27561c7a8edd3cef2da346d1.woff2')format("woff");}.ff4{font-family:ff4;line-height:0.854004;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff5;src:url('chunks/assets/font_793363bb45b6324162db11af.woff2')format("woff");}.ff5{font-family:ff5;line-height:0.854004;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff6;src:url('chunks/assets/font_94de08e7d403719cd69357b2.woff2')format("woff");}.ff6{font-family:ff6;line-height:1.021484;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff7;src:url('chunks/assets/font_507d5a246fb1b19a69dacc16.woff2')format("woff");}.ff7{font-family:ff7;line-height:1.030273;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
@font-face{font-family:ff8;src:url('chunks/assets/font_9df2b8f64b408a9c815cd421.woff2')format("woff");}.ff8{font-family:ff8;line-height:1.021484;font-style:normal;font-weight:normal;visibility:visible;font-variant-ligatures:none;font-feature-settings: "liga" 0, "clig" 0, "dlig" 0, "hlig" 0, "calt" 0;}
.m0{transform:matrix(0.250000,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.250000,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.250000,0.000000,0.000000,0.250000,0,0);}
.m1{transform:matrix(1.500000,0.000000,0.000000,1.500000,0,0);-ms-transform:matrix(1.500000,0.000000,0.000000,1.500000,0,0);-webkit-transform:matrix(1.500000,0.000000,0.000000,1.500000,0,0);}
.v0{vertical-align:0.000000px;}
.v1{vertical-align:23.760000px;}
.ls4{letter-spacing:-0.942000px;}
.ls3{letter-spacing:-0.318000px;}
.ls5{letter-spacing:-0.288000px;}
.ls1{letter-spacing:0.000000px;}
.ls2{letter-spacing:0.288000px;}
.ls0{letter-spacing:0.504000px;}
.sc_{text-shadow:none;}
.sc0{text-shadow:-0.015em 0 transparent,0 0.015em transparent,0.015em 0 transparent,0 -0.015em  transparent;}
@media screen and (-webkit-min-device-pixel-ratio:0){
.sc_{-webkit-text-stroke:0px transparent;}
.sc0{-webkit-text-stroke:0.015em transparent;text-shadow:none;}
}
.ws1{word-spacing:-14.616000px;}
.ws4{word-spacing:-14.328000px;}
.ws0{word-spacing:-13.446720px;}
.ws2{word-spacing:-7.574640px;}
.ws3{word-spacing:0.000000px;}
._3{margin-left:-4.939200px;}
._2{margin-left:-2.880000px;}
._0{margin-left:-1.728000px;}
._1{width:1.152000px;}
._4{width:2.739840px;}
._5{width:4.311360px;}
._8{width:5.696640px;}
._c{width:7.237440px;}
._6{width:8.677440px;}
._7{width:9.973440px;}
._9{width:14.518080px;}
._b{width:17.752320px;}
._a{width:18.950400px;}
.fc2{color:transparent;}
.fc1{color:rgb(70,120,134);}
.fc0{color:rgb(0,0,0);}
.fs2{font-size:38.880000px;}
.fs3{font-size:54.000000px;}
.fs1{font-size:66.240000px;}
.fs0{font-size:72.000000px;}
.y0{bottom:0.000000px;}
.y22{bottom:4.680000px;}
.y27{bottom:24.660000px;}
.y24{bottom:24.840000px;}
.y2e{bottom:24.870000px;}
.y2c{bottom:36.000000px;}
.y26{bottom:44.814000px;}
.y2{bottom:58.860000px;}
.y25{bottom:121.176000px;}
.y49{bottom:170.850000px;}
.y23{bottom:182.190000px;}
.y48{bottom:194.250000px;}
.y21{bottom:223.230000px;}
.y47{bottom:230.250000px;}
.y20{bottom:264.810000px;}
.y46{bottom:266.970000px;}
.y45{bottom:290.370000px;}
.y1f{bottom:301.530000px;}
.y44{bottom:313.590000px;}
.y1e{bottom:325.515000px;}
.y43{bottom:349.635000px;}
.y1d{bottom:362.415000px;}
.y1c{bottom:385.635000px;}
.y42{bottom:386.535000px;}
.y41{bottom:409.755000px;}
.y1b{bottom:421.635000px;}
.y40{bottom:445.755000px;}
.y1a{bottom:458.355000px;}
.y19{bottom:481.755000px;}
.y3f{bottom:482.655000px;}
.y18{bottom:505.155000px;}
.y3e{bottom:505.875000px;}
.y17{bottom:528.375000px;}
.y3d{bottom:529.275000px;}
.y16{bottom:551.775000px;}
.y3c{bottom:552.675000px;}
.y15{bottom:575.205000px;}
.y3b{bottom:588.705000px;}
.y14{bottom:598.425000px;}
.y13{bottom:621.825000px;}
.y3a{bottom:625.425000px;}
.y12{bottom:645.045000px;}
.y39{bottom:648.645000px;}
.y38{bottom:672.045000px;}
.y11{bottom:681.045000px;}
.y10{bottom:706.605000px;}
.y37{bottom:708.045000px;}
.yf{bottom:731.265000px;}
.y36{bottom:744.765000px;}
.ye{bottom:754.665000px;}
.y35{bottom:768.165000px;}
.yd{bottom:790.665000px;}
.y34{bottom:804.165000px;}
.yc{bottom:816.225000px;}
.yb{bottom:840.930000px;}
.y33{bottom:864.330000px;}
.ya{bottom:873.330000px;}
.y9{bottom:896.550000px;}
.y32{bottom:900.330000px;}
.y8{bottom:919.950000px;}
.y31{bottom:937.050000px;}
.y7{bottom:943.350000px;}
.y6{bottom:966.570000px;}
.y30{bottom:971.430000px;}
.y5{bottom:1002.570000px;}
.y2f{bottom:1012.290000px;}
.y4{bottom:1040.010000px;}
.y2d{bottom:1053.330000px;}
.y3{bottom:1077.480000px;}
.y1{bottom:1117.080000px;}
.y2b{bottom:1125.000000px;}
.y2a{bottom:1140.000000px;}
.y29{bottom:1155.000000px;}
.y28{bottom:1170.000000px;}
.h5{height:20.160000px;}
.hb{height:40.140000px;}
.h7{height:40.320000px;}
.ha{height:40.356000px;}
.h9{height:41.660156px;}
.h6{height:55.987031px;}
.h3{height:57.410156px;}
.h4{height:57.457266px;}
.h8{height:60.300000px;}
.h2{height:60.855469px;}
.h1{height:62.402344px;}
.h0{height:1188.000000px;}
.w2{width:179.850000px;}
.w3{width:243.795000px;}
.w4{width:275.610000px;}
.w1{width:917.999986px;}
.w0{width:918.000000px;}
.x0{left:0.000000px;}
.x8{left:7.740000px;}
.x9{left:34.500000px;}
.x2{left:74.339986px;}
.x3{left:83.190000px;}
.x5{left:101.025000px;}
.x7{left:102.600000px;}
.x1{left:106.415986px;}
.x4{left:255.630000px;}
.xa{left:459.000000px;}
.x6{left:500.145000px;}
@media print{
.v0{vertical-align:0.000000pt;}
.v1{vertical-align:21.120000pt;}
.ls4{letter-spacing:-0.837333pt;}
.ls3{letter-spacing:-0.282667pt;}
.ls5{letter-spacing:-0.256000pt;}
.ls1{letter-spacing:0.000000pt;}
.ls2{letter-spacing:0.256000pt;}
.ls0{letter-spacing:0.448000pt;}
.ws1{word-spacing:-12.992000pt;}
.ws4{word-spacing:-12.736000pt;}
.ws0{word-spacing:-11.952640pt;}
.ws2{word-spacing:-6.733013pt;}
.ws3{word-spacing:0.000000pt;}
._3{margin-left:-4.390400pt;}
._2{margin-left:-2.560000pt;}
._0{margin-left:-1.536000pt;}
._1{width:1.024000pt;}
._4{width:2.435413pt;}
._5{width:3.832320pt;}
._8{width:5.063680pt;}
._c{width:6.433280pt;}
._6{width:7.713280pt;}
._7{width:8.865280pt;}
._9{width:12.904960pt;}
._b{width:15.779840pt;}
._a{width:16.844800pt;}
.fs2{font-size:34.560000pt;}
.fs3{font-size:48.000000pt;}
.fs1{font-size:58.880000pt;}
.fs0{font-size:64.000000pt;}
.y0{bottom:0.000000pt;}
.y22{bottom:4.160000pt;}
.y27{bottom:21.920000pt;}
.y24{bottom:22.080000pt;}
.y2e{bottom:22.106667pt;}
.y2c{bottom:32.000000pt;}
.y26{bottom:39.834667pt;}
.y2{bottom:52.320000pt;}
.y25{bottom:107.712000pt;}
.y49{bottom:151.866667pt;}
.y23{bottom:161.946667pt;}
.y48{bottom:172.666667pt;}
.y21{bottom:198.426667pt;}
.y47{bottom:204.666667pt;}
.y20{bottom:235.386667pt;}
.y46{bottom:237.306667pt;}
.y45{bottom:258.106667pt;}
.y1f{bottom:268.026667pt;}
.y44{bottom:278.746667pt;}
.y1e{bottom:289.346667pt;}
.y43{bottom:310.786667pt;}
.y1d{bottom:322.146667pt;}
.y1c{bottom:342.786667pt;}
.y42{bottom:343.586667pt;}
.y41{bottom:364.226667pt;}
.y1b{bottom:374.786667pt;}
.y40{bottom:396.226667pt;}
.y1a{bottom:407.426667pt;}
.y19{bottom:428.226667pt;}
.y3f{bottom:429.026667pt;}
.y18{bottom:449.026667pt;}
.y3e{bottom:449.666667pt;}
.y17{bottom:469.666667pt;}
.y3d{bottom:470.466667pt;}
.y16{bottom:490.466667pt;}
.y3c{bottom:491.266667pt;}
.y15{bottom:511.293333pt;}
.y3b{bottom:523.293333pt;}
.y14{bottom:531.933333pt;}
.y13{bottom:552.733333pt;}
.y3a{bottom:555.933333pt;}
.y12{bottom:573.373333pt;}
.y39{bottom:576.573333pt;}
.y38{bottom:597.373333pt;}
.y11{bottom:605.373333pt;}
.y10{bottom:628.093333pt;}
.y37{bottom:629.373333pt;}
.yf{bottom:650.013333pt;}
.y36{bottom:662.013333pt;}
.ye{bottom:670.813333pt;}
.y35{bottom:682.813333pt;}
.yd{bottom:702.813333pt;}
.y34{bottom:714.813333pt;}
.yc{bottom:725.533333pt;}
.yb{bottom:747.493333pt;}
.y33{bottom:768.293333pt;}
.ya{bottom:776.293333pt;}
.y9{bottom:796.933333pt;}
.y32{bottom:800.293333pt;}
.y8{bottom:817.733333pt;}
.y31{bottom:832.933333pt;}
.y7{bottom:838.533333pt;}
.y6{bottom:859.173333pt;}
.y30{bottom:863.493333pt;}
.y5{bottom:891.173333pt;}
.y2f{bottom:899.813333pt;}
.y4{bottom:924.453333pt;}
.y2d{bottom:936.293333pt;}
.y3{bottom:957.760000pt;}
.y1{bottom:992.960000pt;}
.y2b{bottom:1000.000000pt;}
.y2a{bottom:1013.333333pt;}
.y29{bottom:1026.666667pt;}
.y28{bottom:1040.000000pt;}
.h5{height:17.920000pt;}
.hb{height:35.680000pt;}
.h7{height:35.840000pt;}
.ha{height:35.872000pt;}
.h9{height:37.031250pt;}
.h6{height:49.766250pt;}
.h3{height:51.031250pt;}
.h4{height:51.073125pt;}
.h8{height:53.600000pt;}
.h2{height:54.093750pt;}
.h1{height:55.468750pt;}
.h0{height:1056.000000pt;}
.w2{width:159.866667pt;}
.w3{width:216.706667pt;}
.w4{width:244.986667pt;}
.w1{width:815.999988pt;}
.w0{width:816.000000pt;}
.x0{left:0.000000pt;}
.x8{left:6.880000pt;}
.x9{left:30.666667pt;}
.x2{left:66.079988pt;}
.x3{left:73.946667pt;}
.x5{left:89.800000pt;}
.x7{left:91.200000pt;}
.x1{left:94.591988pt;}
.x4{left:227.226667pt;}
.xa{left:408.000000pt;}
.x6{left:444.573333pt;}
}




    .paper-inline-ad { box-sizing: border-box; margin: 13px auto; max-width: 100%; min-height: 120px; background: #fff; border: 1px solid #e5e7eb; overflow: hidden; }
    .paper-inline-ad-label { padding: 6px 10px 0 10px; font: 10px system-ui, sans-serif; color: #9ca3af; text-transform: uppercase; letter-spacing: .04em; }
    .paper-inline-ad-slot { min-height: 100px; }
    .paper-inline-ad--internal { padding: 0; }
    .paper-internal-promo { padding: 14px 16px 16px 16px; font: 13px system-ui, sans-serif; line-height: 1.45; color: #374151; }
    .paper-internal-promo-title { font-size: 17px; font-weight: 800; color: #111827; margin-bottom: 7px; }
    .paper-internal-promo-body { margin-bottom: 12px; }
    .paper-internal-promo-actions { display: flex; flex-wrap: wrap; gap: 8px; }
    .paper-internal-promo-actions a { display: inline-block; padding: 7px 10px; border: 1px solid #d1d5db; border-radius: 8px; text-decoration: none; color: #111827; background: #f9fafb; font-weight: 700; }
  