@charset "UTF-8";
/* 色 */
.red_txt {
  color: red;
}
.magenta_txt {
  color: mediumvioletred;
} /* magenta指定 だと色がきついので */

.gold_txt {
  color: #af8f68;
}

.rika_txt,
.science_txt {
  color: #45b036;
}
.seikatsu_txt {
  color: #ee791d;
}
.sansu_txt,
.math_txt {
  color: #0078b9;
}
.taiiku_txt,
.pe_txt {
  color: #7d4798;
}

.fundamental_txt {
  color: #2371cb;
}
.linear_txt {
  color: #b35f20;
}
.differential1_txt {
  color: #53993d;
}
.differential2_txt {
  color: #a1ac21;
}
.probability_txt {
  color: #b79229;
}
.applied_txt {
  color: #711e6f;
}
.transfer_txt {
  color: #918877;
}
.vector_txt {
  color: #f39800;
}

.gold_bg {
  background-color: #efece5;
}
.gold_light_bg {
  background-color: #fffaef;
}

.fundamental_bg {
  background-color: #eaf4ff;
}
.linear_bg {
  background-color: #faede4;
}
.differential1_bg {
  background-color: #eaffe3;
}
.differential2_bg {
  background-color: #fafdcd;
}
.probability_bg {
  background-color: #fff8e3;
}
.applied_bg {
  background-color: #f8e4f8;
}
.transfer_bg {
  background-color: #f4f2ef;
}
.vector_bg {
  background-color: #fff0d8;
}

.mechanics1_txt {
  color: #cb1936;
}
.mechanics2_txt {
  color: #4bbb82;
}
.wave_txt {
  color: #0092c9;
}
.electromagnetism_txt {
  color: #e98d2c;
}

.mechanics1_bg {
  background-color: #fce7ea;
}
.mechanics2_bg {
  background-color: #deffee;
}
.wave_bg {
  background-color: #d1f2ff;
}
.electromagnetism_bg {
  background-color: #fff2e5;
}

/* キービジュアル */
#main_box div.obj.dl {
  margin: 0 38px 0 0;
  width: 86px;
  height: 120px;
}
#main_box div.obj.dl svg {
  width: 100%;
  height: 100%;
}
@media screen and (max-width: 600px) {
  #main_box div.obj.dl {
    margin: 0 7.5vw 0 0;
    width: 3.125rem;
    height: 4.375rem;
  }
  #main_box div.obj.dl svg {
    width: 100%;
    height: 100%;
  }
}

/* リード文 */
.lead {
  font-size: 1rem;
  line-height: 1.75;
}
@media screen and (max-width: 600px) {
  .lead {
    font-size: 1rem;
    line-height: 1.75;
  }
}

/* iframe 中央 */
.iframe_wrap > iframe {
  margin: 0 auto;
}

/* floatを使ったときclearboth：空の要素にかける */
.clearboth {
  clear: both;
}

/* flex */
.flex_wrap {
  display: flex;
  flex-wrap: wrap;
}
.flex_column {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
}

/* アキ */
.mt0 {
  margin-top: 0;
}
.mt1 {
  margin-top: 1em;
}
.mb0 {
  margin-bottom: 0;
}
.mb1 {
  margin-bottom: 1em;
}

/* テキスト */
.pad_l1 {
  padding-left: 1em;
}
.pad_l2 {
  padding-left: 2em;
}
.pad_l3 {
  padding-left: 3em;
}
.pad_l4 {
  padding-left: 4em;
}
.pad_r1 {
  padding-right: 1em;
}
.pad_r2 {
  padding-right: 2em;
}
.pad_r3 {
  padding-right: 3em;
}
.indent {
  text-indent: 1em;
}
.hangingIndent {
  padding-left: 1em;
  text-indent: -1em;
}
.hang {
  text-indent: -1em;
}
.hang_2 {
  text-indent: -2em;
}
.hang_3 {
  text-indent: -3em;
}
.small_text {
  font-size: 0.75em;
}
.weight_normal {
  font-weight: normal;
}
.weight_bold {
  font-weight: bold;
}

/* 問い合わせ先：なぜせまく幅設定を？ */
/*
.contact_area .contact_desc{
    width: 472px;
    margin: 0 auto;
}
*/
.contact_area .contact_desc {
  width: 90%;
  margin: 0 auto;
}

/* 効かない 
.regular_disc_list{
    list-style-type: circle;
}
*/
.regular_disc_list > li {
  padding-left: 1em;
  text-indent: -1em;
}
.regular_disc_list > li::before {
  content: "\025e6";
}
ul.no_style_li {
  list-style-type: none;
}
/* signature 思ってたのとちがう */
.signature_area {
  text-align: right;
}
.signature_area > p.signature {
  display: inline-block;
  text-align: left;
}

/* 揃え */
.center {
  text-align: center;
}
.right {
  text-align: right;
}

.block_center {
  margin: 0 auto;
}

/* アキ */
.top0 {
  margin-top: 0;
}
.bottom0 {
  margin-bottom: 0;
}
.top1 {
  margin-top: 1em;
}
.bottom1 {
  margin-bottom: 1em;
}
.top2 {
  margin-top: 2em;
}
.bottom2 {
  margin-bottom: 2em;
}

/* 教科外テーブル */
.table_box.gold table th {
  background-color: #efece5;
}

/* 教科外アンカー */
.nonsubject .anchor_list ul li .anchor_list_text,
.anchor_list ul li.nonsubject .anchor_list_text {
  color: #af8f68;
}
.nonsubject .anchor_list ul li::before,
.anchor_list ul li.nonsubject::before {
  background-color: #af8f68;
}

/* ボタン */
.rounded_btn {
  display: inline-block;
  font-size: 1rem;
  height: 2.5rem;
  border: 1px solid;
  border-radius: 2.5rem;
  background: #fff;
  overflow: hidden;
  text-align: center;
  box-sizing: border-box;
  margin: 1.25rem 0.75rem 0;
  cursor: pointer;
  position: relative;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}
.rounded_btn p {
  line-height: 2.3rem;
  font-weight: bold;
}
@media screen and (max-width: 600px) {
  .rounded_btn {
    font-size: 0.875rem;
  }
}

.gold .rounded_btn {
  color: #af8f68;
}

.rika .rounded_btn,
.science .rounded_btn {
  color: #45b036;
}
.seikatsu .rounded_btn {
  color: #ee791d;
}
.sansu .rounded_btn,
.math .rounded_btn {
  color: #0078b9;
}
.taiiku .rounded_btn,
.pe .rounded_btn {
  color: #7d4798;
}

/* color設定 */
/* 力学Ⅰ */
body#mechanics1 .accordion_list .accordion dt.open .txt,
body#mechanics1 .mathjax_area,
body#mechanics1 .answerOuter .title,
body#mechanics1 .tabList ul li.active p,
body#mechanics1 .example li strong {
  color: #cb1936;
}
body#mechanics1 .answerOuter .title,
body#mechanics1 h3 .border_L6 {
  border-color: #cb1936;
}
body#mechanics1 .example {
  border-color: #cb1936;
  padding: 0.6rem 0.875rem;
  border: 3px solid #cb1936;
  border-radius: 8px;
  margin-top: 0.875rem;
}
body#mechanics1 .btn_page,
body#mechanics1 .modal-btn a {
  color: #cb1936;
  border-color: #cb1936;
}
body#mechanics1 svg.addFil.icon {
  fill: #cb1936;
}
body#mechanics1 .accordion_list .accordion dt::before,
body#mechanics1 .accordion_list .accordion dt::after,
body#mechanics1 .tabList ul li::before,
body#mechanics1 .tabList ul::after {
  background-color: #cb1936;
}
body#mechanics1 .tabList ul li::after {
  border-bottom: 7px solid #cb1936;
}
body#mechanics1 #main_box,
body#mechanics1 .table_box tr.head,
body#mechanics1 .table_box th {
  background-color: #fce7ea;
}
body#mechanics1 .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #fdf3f4;
}
body#mechanics1 .accordion_list .accordion dd div.answerOuter {
  background: #fdf3f4;
}
@media screen and (min-width: 601px) and (max-width: 1162px) {
  body#mechanics1 .multi-table tr {
    background-color: #fce7ea;
  }
}
/* 力学Ⅱ */
body#mechanics2 .accordion_list .accordion dt.open .txt,
body#mechanics2 .mathjax_area,
body#mechanics2 .answerOuter .title,
body#mechanics2 .tabList ul li.active p,
body#mechanics2 .example li strong {
  color: #4bbb82;
}
body#mechanics2 .answerOuter .title,
body#mechanics2 h3 .border_L6 {
  border-color: #4bbb82;
}
body#mechanics2 .example {
  border-color: #4bbb82;
  padding: 0.6rem 0.875rem;
  border: 3px solid #4bbb82;
  border-radius: 8px;
  margin-top: 0.875rem;
}
body#mechanics2 .btn_page,
body#mechanics2 .modal-btn a {
  color: #4bbb82;
  border-color: #4bbb82;
}
body#mechanics2 svg.addFil.icon {
  fill: #4bbb82;
}
body#mechanics2 .accordion_list .accordion dt::before,
body#mechanics2 .accordion_list .accordion dt::after,
body#mechanics2 .tabList ul li::before,
body#mechanics2 .tabList ul::after {
  background-color: #4bbb82;
}
body#mechanics2 .tabList ul li::after {
  border-bottom: 7px solid #4bbb82;
}
body#mechanics2 #main_box,
body#mechanics2 .table_box tr.head,
body#mechanics2 .table_box th {
  background-color: #deffee;
}
body#mechanics2 .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #eefff6;
}
body#mechanics2 .accordion_list .accordion dd div.answerOuter {
  background: #eefff6;
}
@media screen and (min-width: 601px) and (max-width: 1162px) {
  body#mechanics2 .multi-table tr {
    background-color: #deffee;
  }
}

/* 熱・波動 */
body#wave .accordion_list .accordion dt.open .txt,
body#wave .mathjax_area,
body#wave .answerOuter .title,
body#wave .tabList ul li.active p,
body#wave .example li strong {
  color: #0092c9;
}
body#wave .answerOuter .title,
body#wave h3 .border_L6 {
  border-color: #0092c9;
}
body#wave .example {
  border-color: #0092c9;
  padding: 0.6rem 0.875rem;
  border: 3px solid #0092c9;
  border-radius: 8px;
  margin-top: 0.875rem;
}
body#wave .btn_page,
body#wave .modal-btn a {
  color: #0092c9;
  border-color: #0092c9;
}
body#wave svg.addFil.icon {
  fill: #0092c9;
}
body#wave .accordion_list .accordion dt::before,
body#wave .accordion_list .accordion dt::after,
body#wave .tabList ul li::before,
body#wave .tabList ul::after {
  background-color: #0092c9;
}
body#wave .tabList ul li::after {
  border-bottom: 7px solid #0092c9;
}
body#wave #main_box,
body#wave .table_box tr.head,
body#wave .table_box th {
  background-color: #d1f2ff;
}
body#wave .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #e8f8ff;
}
body#wave .accordion_list .accordion dd div.answerOuter {
  background: #e8f8ff;
}
@media screen and (min-width: 601px) and (max-width: 1162px) {
  body#wave .multi-table tr {
    background-color: #d1f2ff;
  }
}

/* 電磁気・原子 */
body#electromagnetism .accordion_list .accordion dt.open .txt,
body#electromagnetism .mathjax_area,
body#electromagnetism .answerOuter .title,
body#electromagnetism .tabList ul li.active p,
body#electromagnetism .example li strong {
  color: #e98d2c;
}
body#electromagnetism .answerOuter .title,
body#electromagnetism h3 .border_L6 {
  border-color: #e98d2c;
}
body#electromagnetism .example {
  border-color: #e98d2c;
  padding: 0.6rem 0.875rem;
  border: 3px solid #e98d2c;
  border-radius: 8px;
  margin-top: 0.875rem;
}
body#electromagnetism .btn_page,
body#electromagnetism .modal-btn a {
  color: #e98d2c;
  border-color: #e98d2c;
}
body#electromagnetism svg.addFil.icon {
  fill: #e98d2c;
}
body#electromagnetism .accordion_list .accordion dt::before,
body#electromagnetism .accordion_list .accordion dt::after,
body#electromagnetism .tabList ul li::before,
body#electromagnetism .tabList ul::after {
  background-color: #e98d2c;
}
body#electromagnetism .tabList ul li::after {
  border-bottom: 7px solid #e98d2c;
}
body#electromagnetism #main_box,
body#electromagnetism .table_box tr.head,
body#electromagnetism .table_box th {
  background-color: #fff2e5;
}
body#electromagnetism .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #fff8f2;
}
body#electromagnetism .accordion_list .accordion dd div.answerOuter {
  background: #fff8f2;
}
@media screen and (min-width: 601px) and (max-width: 1162px) {
  body#electromagnetism .multi-table tr {
    background-color: #fff2e5;
  }
}

/* 20221014：紙面紹介 */
/* 保健・体育 */
body#taiiku_workbook .accordion_list .accordion dt.open .txt,
body#taiiku_workbook .mathjax_area,
body#taiiku_workbook .answerOuter .title,
body#taiiku_workbook .tabList ul li.active p,
body#taiiku_workbook .example li strong {
  color: #7d4798;
}
body#taiiku_workbook .answerOuter .title,
body#taiiku_workbook h3 .border_L6 {
  border-color: #7d4798;
}
body#taiiku_workbook .example:not(.multi) {
  border-color: #7d4798;
  border: 3px solid #7d4798;
  background-color: #eeeeff;
}
@media screen and (min-width: 601px) {
  body#taiiku_workbook .example.multi li {
    border-color: #7d4798;
    border: 3px solid #7d4798;
    background-color: #eeeeff;
  }
}
@media screen and (max-width: 600px) {
  body#taiiku_workbook .example.multi {
    border-color: #7d4798;
    border: 3px solid #7d4798;
    background-color: #eeeeff;
  }
}
body#taiiku_workbook .btn_page,
body#taiiku_workbook .modal-btn a {
  color: #7d4798;
  border-color: #7d4798;
}
body#taiiku_workbook svg.addFil.icon {
  fill: #7d4798;
}
/*body#linear svg.addStr{
  stroke: #B35F20;
}*/
body#taiiku .tabList ul li::before,
body#taiiku .tabList ul::after,
body#taiiku .accordion_list .accordion dt::before,
body#taiiku .accordion_list .accordion dt::after {
  background-color: #7d4798;
}
body#taiiku .tabList ul li::after {
  border-bottom: 7px solid #7d4798;
}
body#taiiku_workbook #main_box,
body#taiiku_workbook .table_box tr.head,
body#taiiku_workbook .table_box th {
  background-color: #eeeeff;
}
body#taiiku_workbook .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #f6f6ff;
}
body#taiiku_workbook .accordion_list .accordion dd div.answerOuter {
  background: #f6f6ff;
}

/* 20231003：紙面紹介 */
/* 算数 */
body#sansu_workbook .accordion_list .accordion dt.open .txt,
body#sansu_workbook .mathjax_area,
body#sansu_workbook .answerOuter .title,
body#sansu_workbook .tabList ul li.active p,
body#sansu_workbook .example li strong {
  color: #0078b9;
}
body#sansu_workbook .answerOuter .title,
body#sansu_workbook h3 .border_L6 {
  border-color: #0078b9;
}
body#sansu_workbook .example:not(.multi) {
  border-color: #0078b9;
  border: 3px solid #0078b9;
  background-color: #e8f7ff;
}
@media screen and (min-width: 601px) {
  body#sansu_workbook .example.multi li {
    border-color: #0078b9;
    border: 3px solid #0078b9;
    background-color: #e8f7ff;
  }
}
@media screen and (max-width: 600px) {
  body#sansu_workbook .example.multi {
    border-color: #0078b9;
    border: 3px solid #0078b9;
    background-color: #e8f7ff;
  }
}
body#sansu_workbook .btn_page,
body#sansu_workbook .modal-btn a {
  color: #0078b9;
  border-color: #0078b9;
}
body#sansu_workbook svg.addFil.icon {
  fill: #0078b9;
}
/*body#linear svg.addStr{
  stroke: #B35F20;
}*/
body#sansu .tabList ul li::before,
body#sansu .tabList ul::after,
body#sansu .accordion_list .accordion dt::before,
body#sansu .accordion_list .accordion dt::after {
  background-color: #0078b9;
}
body#sansu .tabList ul li::after {
  border-bottom: 7px solid #0078b9;
}
body#sansu_workbook #main_box,
body#sansu_workbook .table_box tr.head,
body#sansu_workbook .table_box th {
  background-color: #e8f7ff;
}
body#sansu_workbook .accordion_list .accordion dd div.answerOuter:before {
  border-bottom-color: #f3fbff;
}
body#sansu_workbook .accordion_list .accordion dd div.answerOuter {
  background: #f3fbff;
}
/* 20231003：コピー修正 */
.lower .tabPanel_cnt_txt {
  width: -webkit-calc(100% - 5%);
  width: calc(100% - 5%);
}

/* 20221023：紙面紹介 */
/* 微分積分Ⅰ 
body#differential1 .example:not(.multi) {
  border-color:#53993D;
  border: 3px solid #53993D;
  background-color: #F4FFF1;
}
@media screen and (min-width: 601px){
  body#differential1 .example.multi li {
    border-color:#53993D;
    border: 3px solid #53993D;
	background-color: #F4FFF1;
  }
}
@media screen and (max-width: 600px){
  body#differential1 .example.multi {
    border-color:#53993D;
    border: 3px solid #53993D;
	background-color: #F4FFF1;
  }
}
/* 微分積分Ⅱ 
body#differential2 .example:not(.multi) {
  border-color:#A1AC21;
  border: 3px solid #A1AC21;
  background-color: #FCFEE6;
}
@media screen and (min-width: 601px){
  body#differential2 .example.multi li {
    border-color:#A1AC21;
    border: 3px solid #A1AC21;
	background-color: #FCFEE6;
  }
}
@media screen and (max-width: 600px){
  body#differential2 .example.multi {
    border-color:#A1AC21;
    border: 3px solid #A1AC21;
	background-color: #FCFEE6;
  }
}
/* 確率統計 
body#probability .example:not(.multi) {
  border-color:#B79229;
  border: 3px solid #B79229;
  background-color: #FFFBF1;
}
@media screen and (min-width: 601px){
  body#probability .example.multi li {
    border-color:#B79229;
    border: 3px solid #B79229;
	background-color: #FFFBF1;
  }
}
@media screen and (max-width: 600px){
  body#probability .example.multi {
    border-color:#B79229;
    border: 3px solid #B79229;
	background-color: #FFFBF1;
  }
}
/* 応用数学：20231011 
body#applied .example:not(.multi) {
  border-color:#711e6f;
  border: 3px solid #711e6f;
  background-color: #fbf1fb;
}
@media screen and (min-width: 601px){
  body#applied .example.multi li {
    border-color:#711e6f;
    border: 3px solid #711e6f;
	background-color: #fbf1fb;
  }
}
@media screen and (max-width: 600px){
  body#applied .example.multi {
    border-color:#711e6f;
    border: 3px solid #711e6f;
	background-color: #fbf1fb;
  }
}
/* 数学ポイントはcommon_2022に統合 */

/*20250404　お問い合わせよくある質問*/

.faq_link_area.pc_tb {
  display: flex;
}
@media screen and (max-width: 600px) {
  .faq_link_area.pc_tb {
    display: none;
  }
}
/*
@media screen and (max-width : 600px){
	.faq_link_area{
		display: flex;
		flex-direction: column;
	}
}
*/

.faq_link {
  display: flex;
  margin-top: 16px;
}
.faq_link a {
  position: relative;
  margin-left: calc(15px + 2.21em);
  font-size: 1em;
  font-weight: bold;
}

.faq_link a:not(:first-of-type) {
  margin-top: 12px;
}

.faq_link a::before {
  content: "";
  display: inline-block;
  position: absolute;
  width: 1.25em;
  height: 1.5em;
  left: -1.5em;
  top: 0;
  background-image: url("../../contact/images/icon_question.svg");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
}
.faq_link.rika a::before {
  filter: invert(76%) sepia(6%) saturate(4101%) hue-rotate(64deg)
    brightness(73%) contrast(110%);
}
.faq_link.seikatsu a::before {
  filter: invert(53%) sepia(77%) saturate(2048%) hue-rotate(351deg)
    brightness(98%) contrast(90%);
}
.faq_link.sansu a::before {
  filter: invert(27%) sepia(40%) saturate(3788%) hue-rotate(181deg)
    brightness(101%) contrast(101%);
}
.faq_link.hoken a::before {
  filter: invert(37%) sepia(12%) saturate(2718%) hue-rotate(236deg)
    brightness(88%) contrast(91%);
}

@media screen and (max-width: 600px) {
  .faq_link a {
    position: relative;
    margin-left: 5vw;
    font-size: 4vw;
    font-weight: bold;
  }
  .news_textlink_box a:not(:first-of-type) {
    margin-top: 5.6vw;
  }
  .faq_link a::before {
    width: 1em;
    left: -1.25em;
  }
  .contact .news_textlink_box a {
    font-size: 4vw;
  }
  .rounded_btn_area {
    text-align: center;
  }
}

.rounded_btn2025 {
  display: inline-block;
  height: calc(2.75rem + 4px);
  border: 2px solid #af8f68;
  color: #af8f68;
  background-color: #fff;
  box-sizing: border-box;
  border-radius: 1.75rem;
  margin: 1em 0.5em;
}
.rounded_btn2025 a {
  display: inline-block;
  font-size: 1.25rem;
  line-height: 1;
  font-weight: bold;
  padding: 0.75rem 2.5rem;
}
.rounded_btn2025 a:hover {
  opacity: 0.7;
}
.rounded_btn2025 svg {
  display: inline-block;
  vertical-align: top;
  width: 0.5625rem;
  height: 0.9375rem;
  margin: 0.15625rem 0.625rem 0 0;
}
.contact_table_area {
  margin: 0.5em;
  overflow-x: scroll;
}
.contact_table_area table {
  width: 100%;
}
.contact_table_area th,
.contact_table_area td {
  border: solid 1px;
  border-color: #d7d7d7;
  padding: 1em;
  text-align: center;
}
.contact_table_area th {
  background-color: #ececec;
}
.name_departement {
  width: 1.5em;
}
.name_section {
  min-width: 7em;
}
.number_tel {
  white-space: nowrap;
}
.contact_table_area td.content {
  min-width: 10em;
  text-align: left;
}
.vertical {
  writing-mode: vertical-rl;
  display: block;
  white-space: nowrap;
  width: 1.5em;
}
.break_680 {
  display: none;
}
@media only screen and (max-width: 680px) {
  .name_section {
    min-width: 4em;
  }
  .space_680plus {
    display: none;
  }
  .break_680 {
    display: inline-block;
  }
}
@media only screen and (max-width: 600px) {
  .name_section {
    width: calc(4em + 1em);
    text-align: center;
  }
}

/*　20250520献本申し込み用ボタン　*/
.rounded_btn2025.kenpon {
  max-width: 20rem;
  display: block;
  text-align: center;
  margin: 1em auto;
}
.btn_area.kenpon {
  padding-top: 1em;
}
.btn_area.kenpon .btn_back {
  width: 12em;
}