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_9f90819342e26b3f7898924d.woff')format("woff");}.ff1{font-family:ff1;line-height:1.432129;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_00f948c6ac104bfc61f7abfe.woff')format("woff");}.ff2{font-family:ff2;line-height:1.432129;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;}
.m1{transform:matrix(0.215015,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.215015,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.215015,0.000000,0.000000,0.250000,0,0);}
.m0{transform:matrix(0.215743,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.215743,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.215743,0.000000,0.000000,0.250000,0,0);}
.m8{transform:matrix(0.228571,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.228571,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.228571,0.000000,0.000000,0.250000,0,0);}
.m9{transform:matrix(0.242754,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.242754,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.242754,0.000000,0.000000,0.250000,0,0);}
.m7{transform:matrix(0.246951,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.246951,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.246951,0.000000,0.000000,0.250000,0,0);}
.m3{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);}
.m6{transform:matrix(0.256329,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.256329,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.256329,0.000000,0.000000,0.250000,0,0);}
.m4{transform:matrix(0.259146,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.259146,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.259146,0.000000,0.000000,0.250000,0,0);}
.m5{transform:matrix(0.268987,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.268987,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.268987,0.000000,0.000000,0.250000,0,0);}
.m2{transform:matrix(0.272143,0.000000,0.000000,0.250000,0,0);-ms-transform:matrix(0.272143,0.000000,0.000000,0.250000,0,0);-webkit-transform:matrix(0.272143,0.000000,0.000000,0.250000,0,0);}
.v0{vertical-align:0.000000px;}
.ls7{letter-spacing:-63.669375px;}
.ls8{letter-spacing:-58.563750px;}
.ls6{letter-spacing:-36.503775px;}
.lsf{letter-spacing:-5.997600px;}
.lsd{letter-spacing:-4.498200px;}
.lse{letter-spacing:-2.998800px;}
.ls11{letter-spacing:-2.318400px;}
.lsb{letter-spacing:-2.249100px;}
.lsa{letter-spacing:-1.499400px;}
.ls10{letter-spacing:-0.819000px;}
.lsc{letter-spacing:-0.749700px;}
.ls9{letter-spacing:0.000000px;}
.ls0{letter-spacing:0.749700px;}
.ls5{letter-spacing:0.819000px;}
.ls1{letter-spacing:1.499400px;}
.ls2{letter-spacing:2.249100px;}
.ls4{letter-spacing:2.998800px;}
.ls3{letter-spacing:3.748500px;}
.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;}
}
.ws0{word-spacing:0.000000px;}
._10{margin-left:-5.103000px;}
._12{margin-left:-2.457000px;}
._11{margin-left:-1.404900px;}
._a{width:2.053800px;}
._b{width:4.057200px;}
._6{width:5.796000px;}
._4{width:6.867000px;}
._3{width:8.505000px;}
._f{width:9.702000px;}
._0{width:10.836000px;}
._2{width:12.171600px;}
._5{width:13.576500px;}
._e{width:14.861700px;}
._1{width:16.065000px;}
._9{width:17.700600px;}
._8{width:19.807200px;}
._7{width:21.067200px;}
._c{width:23.007600px;}
._13{width:25.200000px;}
._d{width:38.392200px;}
.fc0{color:transparent;}
.fs7{font-size:51.750000px;}
.fs6{font-size:52.500000px;}
.fs5{font-size:57.750000px;}
.fs4{font-size:59.250000px;}
.fs3{font-size:61.500000px;}
.fs2{font-size:63.000000px;}
.fs0{font-size:257.250000px;}
.fs1{font-size:262.500000px;}
.y0{bottom:0.000000px;}
.y2f{bottom:37.935300px;}
.y2e{bottom:51.255600px;}
.y2d{bottom:80.423100px;}
.y2b{bottom:96.964500px;}
.y2c{bottom:96.976350px;}
.y2a{bottom:112.809000px;}
.y28{bottom:128.998200px;}
.y29{bottom:129.015750px;}
.y27{bottom:145.204950px;}
.y26{bottom:161.411700px;}
.y25{bottom:177.248700px;}
.y23{bottom:193.417350px;}
.y24{bottom:193.455450px;}
.y22{bottom:209.624100px;}
.y21{bottom:225.830850px;}
.y20{bottom:242.037600px;}
.y1f{bottom:258.244350px;}
.y1e{bottom:274.088850px;}
.y1d{bottom:290.263950px;}
.y1c{bottom:306.108450px;}
.y1b{bottom:322.661700px;}
.y1a{bottom:338.868450px;}
.y19{bottom:355.075200px;}
.y18{bottom:370.919700px;}
.y17{bottom:387.472950px;}
.y16{bottom:403.317450px;}
.y15{bottom:419.524200px;}
.y14{bottom:435.730950px;}
.y12{bottom:451.570650px;}
.y13{bottom:451.575450px;}
.y11{bottom:468.123900px;}
.y10{bottom:483.968400px;}
.yf{bottom:500.175150px;}
.ye{bottom:516.383100px;}
.yd{bottom:532.924500px;}
.yc{bottom:548.769000px;}
.ya{bottom:564.962550px;}
.yb{bottom:564.975750px;}
.y9{bottom:581.169300px;}
.y8{bottom:597.376050px;}
.y7{bottom:613.216200px;}
.y6{bottom:629.402400px;}
.y5{bottom:645.609150px;}
.y4{bottom:661.815900px;}
.y3{bottom:678.015150px;}
.y2{bottom:926.056350px;}
.y1{bottom:1016.775900px;}
.hc{height:53.973633px;}
.hb{height:54.755859px;}
.h8{height:61.795898px;}
.h5{height:64.142578px;}
.h4{height:65.707031px;}
.ha{height:65.737031px;}
.h7{height:65.754431px;}
.h6{height:65.759831px;}
.h9{height:65.833631px;}
.h2{height:268.303711px;}
.h3{height:273.779297px;}
.h1{height:1080.750000px;}
.h0{height:1080.992550px;}
.w1{width:957.750000px;}
.w0{width:957.872250px;}
.x0{left:0.000000px;}
.x13{left:633.016350px;}
.xc{left:634.088550px;}
.x9{left:635.564550px;}
.x4{left:636.615450px;}
.x1{left:637.696500px;}
.x5{left:651.735300px;}
.x8{left:652.826550px;}
.x3{left:653.895900px;}
.x6{left:689.536050px;}
.x7{left:703.935750px;}
.x11{left:718.696500px;}
.xd{left:835.695900px;}
.xe{left:850.456650px;}
.xf{left:860.176200px;}
.x2{left:863.416050px;}
.x12{left:872.415600px;}
.x10{left:877.456650px;}
.xa{left:883.575450px;}
.xb{left:899.776500px;}
@media print{
.v0{vertical-align:0.000000pt;}
.ls7{letter-spacing:-56.595000pt;}
.ls8{letter-spacing:-52.056667pt;}
.ls6{letter-spacing:-32.447800pt;}
.lsf{letter-spacing:-5.331200pt;}
.lsd{letter-spacing:-3.998400pt;}
.lse{letter-spacing:-2.665600pt;}
.ls11{letter-spacing:-2.060800pt;}
.lsb{letter-spacing:-1.999200pt;}
.lsa{letter-spacing:-1.332800pt;}
.ls10{letter-spacing:-0.728000pt;}
.lsc{letter-spacing:-0.666400pt;}
.ls9{letter-spacing:0.000000pt;}
.ls0{letter-spacing:0.666400pt;}
.ls5{letter-spacing:0.728000pt;}
.ls1{letter-spacing:1.332800pt;}
.ls2{letter-spacing:1.999200pt;}
.ls4{letter-spacing:2.665600pt;}
.ls3{letter-spacing:3.332000pt;}
.ws0{word-spacing:0.000000pt;}
._10{margin-left:-4.536000pt;}
._12{margin-left:-2.184000pt;}
._11{margin-left:-1.248800pt;}
._a{width:1.825600pt;}
._b{width:3.606400pt;}
._6{width:5.152000pt;}
._4{width:6.104000pt;}
._3{width:7.560000pt;}
._f{width:8.624000pt;}
._0{width:9.632000pt;}
._2{width:10.819200pt;}
._5{width:12.068000pt;}
._e{width:13.210400pt;}
._1{width:14.280000pt;}
._9{width:15.733867pt;}
._8{width:17.606400pt;}
._7{width:18.726400pt;}
._c{width:20.451200pt;}
._13{width:22.400000pt;}
._d{width:34.126400pt;}
.fs7{font-size:46.000000pt;}
.fs6{font-size:46.666667pt;}
.fs5{font-size:51.333333pt;}
.fs4{font-size:52.666667pt;}
.fs3{font-size:54.666667pt;}
.fs2{font-size:56.000000pt;}
.fs0{font-size:228.666667pt;}
.fs1{font-size:233.333333pt;}
.y0{bottom:0.000000pt;}
.y2f{bottom:33.720267pt;}
.y2e{bottom:45.560533pt;}
.y2d{bottom:71.487200pt;}
.y2b{bottom:86.190667pt;}
.y2c{bottom:86.201200pt;}
.y2a{bottom:100.274667pt;}
.y28{bottom:114.665067pt;}
.y29{bottom:114.680667pt;}
.y27{bottom:129.071067pt;}
.y26{bottom:143.477067pt;}
.y25{bottom:157.554400pt;}
.y23{bottom:171.926533pt;}
.y24{bottom:171.960400pt;}
.y22{bottom:186.332533pt;}
.y21{bottom:200.738533pt;}
.y20{bottom:215.144533pt;}
.y1f{bottom:229.550533pt;}
.y1e{bottom:243.634533pt;}
.y1d{bottom:258.012400pt;}
.y1c{bottom:272.096400pt;}
.y1b{bottom:286.810400pt;}
.y1a{bottom:301.216400pt;}
.y19{bottom:315.622400pt;}
.y18{bottom:329.706400pt;}
.y17{bottom:344.420400pt;}
.y16{bottom:358.504400pt;}
.y15{bottom:372.910400pt;}
.y14{bottom:387.316400pt;}
.y12{bottom:401.396133pt;}
.y13{bottom:401.400400pt;}
.y11{bottom:416.110133pt;}
.y10{bottom:430.194133pt;}
.yf{bottom:444.600133pt;}
.ye{bottom:459.007200pt;}
.yd{bottom:473.710667pt;}
.yc{bottom:487.794667pt;}
.ya{bottom:502.188933pt;}
.yb{bottom:502.200667pt;}
.y9{bottom:516.594933pt;}
.y8{bottom:531.000933pt;}
.y7{bottom:545.081067pt;}
.y6{bottom:559.468800pt;}
.y5{bottom:573.874800pt;}
.y4{bottom:588.280800pt;}
.y3{bottom:602.680133pt;}
.y2{bottom:823.161200pt;}
.y1{bottom:903.800800pt;}
.hc{height:47.976562pt;}
.hb{height:48.671875pt;}
.h8{height:54.929688pt;}
.h5{height:57.015625pt;}
.h4{height:58.406250pt;}
.ha{height:58.432917pt;}
.h7{height:58.448383pt;}
.h6{height:58.453183pt;}
.h9{height:58.518783pt;}
.h2{height:238.492188pt;}
.h3{height:243.359375pt;}
.h1{height:960.666667pt;}
.h0{height:960.882267pt;}
.w1{width:851.333333pt;}
.w0{width:851.442000pt;}
.x0{left:0.000000pt;}
.x13{left:562.681200pt;}
.xc{left:563.634267pt;}
.x9{left:564.946267pt;}
.x4{left:565.880400pt;}
.x1{left:566.841333pt;}
.x5{left:579.320267pt;}
.x8{left:580.290267pt;}
.x3{left:581.240800pt;}
.x6{left:612.920933pt;}
.x7{left:625.720667pt;}
.x11{left:638.841333pt;}
.xd{left:742.840800pt;}
.xe{left:755.961467pt;}
.xf{left:764.601067pt;}
.x2{left:767.480933pt;}
.x12{left:775.480533pt;}
.x10{left:779.961467pt;}
.xa{left:785.400400pt;}
.xb{left:799.801333pt;}
}




    .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; }