
    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_2210ab13ee28052d29c5f2a8.woff')format("woff");}.ff1{font-family:ff1;line-height:1.197754;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_45e50b3699014f837a0c7978.woff')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;}
.m0{transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);}
.m2{transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.225000,0.000000,0.000000,0.250000,0,0);}
.m1{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);}
.v5{vertical-align:-24.420000px;}
.v4{vertical-align:-2.220000px;}
.v0{vertical-align:0.000000px;}
.v1{vertical-align:3.000000px;}
.v2{vertical-align:19.080000px;}
.v3{vertical-align:26.640000px;}
.ls2{letter-spacing:0.000000px;}
.ls1{letter-spacing:0.432000px;}
.ls4{letter-spacing:4.197333px;}
.ls3{letter-spacing:4.200000px;}
.ls5{letter-spacing:6.000000px;}
.ls0{letter-spacing:10.200000px;}
.ls6{letter-spacing:55.123800px;}
.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;}
}
.ws4{word-spacing:-20.232000px;}
.ws0{word-spacing:-17.784000px;}
.ws2{word-spacing:-16.860000px;}
.ws3{word-spacing:-14.162400px;}
.ws6{word-spacing:-14.079000px;}
.ws5{word-spacing:-11.127600px;}
.ws1{word-spacing:0.000000px;}
._13{margin-left:-19.516200px;}
._6{margin-left:-15.576000px;}
._2{margin-left:-10.200000px;}
._16{margin-left:-8.245200px;}
._f{margin-left:-6.754800px;}
._12{margin-left:-5.112000px;}
._4{margin-left:-4.080000px;}
._1{margin-left:-3.060000px;}
._0{margin-left:-1.536000px;}
._5{width:1.476000px;}
._a{width:3.024000px;}
._9{width:4.296000px;}
._d{width:5.988000px;}
._b{width:7.072000px;}
._11{width:9.056000px;}
._3{width:10.162000px;}
._c{width:11.330000px;}
._8{width:12.576000px;}
._7{width:13.632000px;}
._e{width:14.976000px;}
._10{width:15.984000px;}
._14{width:17.063400px;}
._15{width:21.348000px;}
._17{width:54.200400px;}
.fc1{color:rgb(255,255,255);}
.fc0{color:rgb(35,31,32);}
.fs9{font-size:36.000000px;}
.fs8{font-size:39.600000px;}
.fs4{font-size:42.000000px;}
.fs6{font-size:43.200000px;}
.fs0{font-size:48.000000px;}
.fs5{font-size:50.400000px;}
.fs7{font-size:57.000000px;}
.fs1{font-size:60.000000px;}
.fs3{font-size:72.000000px;}
.fs2{font-size:102.000000px;}
.y0{bottom:0.000000px;}
.y1{bottom:107.837550px;}
.y4d{bottom:171.813150px;}
.y21{bottom:179.635500px;}
.y46{bottom:181.612500px;}
.y4c{bottom:194.418150px;}
.y20{bottom:201.235500px;}
.y45{bottom:203.212500px;}
.y1f{bottom:222.835350px;}
.y44{bottom:224.812500px;}
.y1e{bottom:244.435500px;}
.y43{bottom:246.412500px;}
.y1d{bottom:266.035500px;}
.y42{bottom:268.012500px;}
.y1c{bottom:287.635500px;}
.y41{bottom:289.612500px;}
.y1b{bottom:309.235500px;}
.y40{bottom:311.212500px;}
.y1a{bottom:330.835350px;}
.y3f{bottom:332.812500px;}
.y19{bottom:352.435500px;}
.y3e{bottom:354.412500px;}
.y18{bottom:374.035500px;}
.y3d{bottom:376.012500px;}
.y17{bottom:395.635500px;}
.y3c{bottom:397.612500px;}
.y16{bottom:417.235500px;}
.y3b{bottom:419.212500px;}
.y15{bottom:438.835350px;}
.y3a{bottom:440.812500px;}
.y14{bottom:460.435500px;}
.y39{bottom:462.412500px;}
.y4b{bottom:468.712500px;}
.y13{bottom:482.035500px;}
.y38{bottom:484.012500px;}
.y4a{bottom:486.712500px;}
.y12{bottom:503.635500px;}
.y49{bottom:504.712500px;}
.y37{bottom:505.612500px;}
.y48{bottom:522.712500px;}
.y11{bottom:525.235500px;}
.y36{bottom:527.212500px;}
.y10{bottom:546.835350px;}
.y35{bottom:548.812500px;}
.yf{bottom:568.435500px;}
.y34{bottom:570.412500px;}
.y47{bottom:579.412500px;}
.ye{bottom:590.035500px;}
.y33{bottom:592.012500px;}
.yd{bottom:611.635500px;}
.y32{bottom:613.612500px;}
.yc{bottom:633.235500px;}
.y31{bottom:635.212500px;}
.yb{bottom:654.835350px;}
.y30{bottom:656.812500px;}
.ya{bottom:676.435500px;}
.y2f{bottom:678.412500px;}
.y9{bottom:698.035500px;}
.y2e{bottom:700.012500px;}
.y8{bottom:719.635500px;}
.y2d{bottom:721.612500px;}
.y7{bottom:741.235500px;}
.y2c{bottom:743.212500px;}
.y6{bottom:762.835350px;}
.y2b{bottom:764.812500px;}
.y5{bottom:784.435500px;}
.y2a{bottom:786.412500px;}
.y29{bottom:808.012500px;}
.y28{bottom:829.612500px;}
.y27{bottom:851.212500px;}
.y26{bottom:872.812500px;}
.y4{bottom:892.435500px;}
.y25{bottom:894.412500px;}
.y24{bottom:916.012500px;}
.y3{bottom:923.035350px;}
.y23{bottom:937.612500px;}
.y2{bottom:953.635500px;}
.y22{bottom:959.212500px;}
.ha{height:38.207812px;}
.h7{height:40.523438px;}
.h6{height:43.523438px;}
.h2{height:46.312500px;}
.hb{height:48.399902px;}
.h9{height:50.947266px;}
.h8{height:54.996094px;}
.h3{height:57.890625px;}
.h5{height:69.468750px;}
.h4{height:98.414062px;}
.h0{height:1083.472500px;}
.h1{height:1083.750000px;}
.w0{width:785.835000px;}
.w1{width:786.000000px;}
.x0{left:0.000000px;}
.x3{left:108.035400px;}
.x4{left:129.295200px;}
.x7{left:150.555150px;}
.x5{left:182.170350px;}
.x6{left:302.077950px;}
.x1{left:406.897350px;}
.x8{left:574.709400px;}
.x2{left:600.289350px;}
@media print{
.v5{vertical-align:-21.706667pt;}
.v4{vertical-align:-1.973333pt;}
.v0{vertical-align:0.000000pt;}
.v1{vertical-align:2.666667pt;}
.v2{vertical-align:16.960000pt;}
.v3{vertical-align:23.680000pt;}
.ls2{letter-spacing:0.000000pt;}
.ls1{letter-spacing:0.384000pt;}
.ls4{letter-spacing:3.730963pt;}
.ls3{letter-spacing:3.733333pt;}
.ls5{letter-spacing:5.333333pt;}
.ls0{letter-spacing:9.066667pt;}
.ls6{letter-spacing:48.998933pt;}
.ws4{word-spacing:-17.984000pt;}
.ws0{word-spacing:-15.808000pt;}
.ws2{word-spacing:-14.986667pt;}
.ws3{word-spacing:-12.588800pt;}
.ws6{word-spacing:-12.514667pt;}
.ws5{word-spacing:-9.891200pt;}
.ws1{word-spacing:0.000000pt;}
._13{margin-left:-17.347733pt;}
._6{margin-left:-13.845333pt;}
._2{margin-left:-9.066667pt;}
._16{margin-left:-7.329067pt;}
._f{margin-left:-6.004267pt;}
._12{margin-left:-4.544000pt;}
._4{margin-left:-3.626667pt;}
._1{margin-left:-2.720000pt;}
._0{margin-left:-1.365333pt;}
._5{width:1.312000pt;}
._a{width:2.688000pt;}
._9{width:3.818667pt;}
._d{width:5.322667pt;}
._b{width:6.286222pt;}
._11{width:8.049778pt;}
._3{width:9.032889pt;}
._c{width:10.071111pt;}
._8{width:11.178667pt;}
._7{width:12.117333pt;}
._e{width:13.312000pt;}
._10{width:14.208000pt;}
._14{width:15.167467pt;}
._15{width:18.976000pt;}
._17{width:48.178133pt;}
.fs9{font-size:32.000000pt;}
.fs8{font-size:35.200000pt;}
.fs4{font-size:37.333333pt;}
.fs6{font-size:38.400000pt;}
.fs0{font-size:42.666667pt;}
.fs5{font-size:44.800000pt;}
.fs7{font-size:50.666667pt;}
.fs1{font-size:53.333333pt;}
.fs3{font-size:64.000000pt;}
.fs2{font-size:90.666667pt;}
.y0{bottom:0.000000pt;}
.y1{bottom:95.855600pt;}
.y4d{bottom:152.722800pt;}
.y21{bottom:159.676000pt;}
.y46{bottom:161.433333pt;}
.y4c{bottom:172.816133pt;}
.y20{bottom:178.876000pt;}
.y45{bottom:180.633333pt;}
.y1f{bottom:198.075867pt;}
.y44{bottom:199.833333pt;}
.y1e{bottom:217.276000pt;}
.y43{bottom:219.033333pt;}
.y1d{bottom:236.476000pt;}
.y42{bottom:238.233333pt;}
.y1c{bottom:255.676000pt;}
.y41{bottom:257.433333pt;}
.y1b{bottom:274.876000pt;}
.y40{bottom:276.633333pt;}
.y1a{bottom:294.075867pt;}
.y3f{bottom:295.833333pt;}
.y19{bottom:313.276000pt;}
.y3e{bottom:315.033333pt;}
.y18{bottom:332.476000pt;}
.y3d{bottom:334.233333pt;}
.y17{bottom:351.676000pt;}
.y3c{bottom:353.433333pt;}
.y16{bottom:370.876000pt;}
.y3b{bottom:372.633333pt;}
.y15{bottom:390.075867pt;}
.y3a{bottom:391.833333pt;}
.y14{bottom:409.276000pt;}
.y39{bottom:411.033333pt;}
.y4b{bottom:416.633333pt;}
.y13{bottom:428.476000pt;}
.y38{bottom:430.233333pt;}
.y4a{bottom:432.633333pt;}
.y12{bottom:447.676000pt;}
.y49{bottom:448.633333pt;}
.y37{bottom:449.433333pt;}
.y48{bottom:464.633333pt;}
.y11{bottom:466.876000pt;}
.y36{bottom:468.633333pt;}
.y10{bottom:486.075867pt;}
.y35{bottom:487.833333pt;}
.yf{bottom:505.276000pt;}
.y34{bottom:507.033333pt;}
.y47{bottom:515.033333pt;}
.ye{bottom:524.476000pt;}
.y33{bottom:526.233333pt;}
.yd{bottom:543.676000pt;}
.y32{bottom:545.433333pt;}
.yc{bottom:562.876000pt;}
.y31{bottom:564.633333pt;}
.yb{bottom:582.075867pt;}
.y30{bottom:583.833333pt;}
.ya{bottom:601.276000pt;}
.y2f{bottom:603.033333pt;}
.y9{bottom:620.476000pt;}
.y2e{bottom:622.233333pt;}
.y8{bottom:639.676000pt;}
.y2d{bottom:641.433333pt;}
.y7{bottom:658.876000pt;}
.y2c{bottom:660.633333pt;}
.y6{bottom:678.075867pt;}
.y2b{bottom:679.833333pt;}
.y5{bottom:697.276000pt;}
.y2a{bottom:699.033333pt;}
.y29{bottom:718.233333pt;}
.y28{bottom:737.433333pt;}
.y27{bottom:756.633333pt;}
.y26{bottom:775.833333pt;}
.y4{bottom:793.276000pt;}
.y25{bottom:795.033333pt;}
.y24{bottom:814.233333pt;}
.y3{bottom:820.475867pt;}
.y23{bottom:833.433333pt;}
.y2{bottom:847.676000pt;}
.y22{bottom:852.633333pt;}
.ha{height:33.962500pt;}
.h7{height:36.020833pt;}
.h6{height:38.687500pt;}
.h2{height:41.166667pt;}
.hb{height:43.022135pt;}
.h9{height:45.286458pt;}
.h8{height:48.885417pt;}
.h3{height:51.458333pt;}
.h5{height:61.750000pt;}
.h4{height:87.479167pt;}
.h0{height:963.086667pt;}
.h1{height:963.333333pt;}
.w0{width:698.520000pt;}
.w1{width:698.666667pt;}
.x0{left:0.000000pt;}
.x3{left:96.031467pt;}
.x4{left:114.929067pt;}
.x7{left:133.826800pt;}
.x5{left:161.929200pt;}
.x6{left:268.513733pt;}
.x1{left:361.686533pt;}
.x8{left:510.852800pt;}
.x2{left:533.590533pt;}
}




    .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; }
  