/* IZUTSUYA サイト構造：解説ページ「ガウシアンスプラッティングとは」用。
   本文は WordPress の固定ページ（/gaussian-splatting/）にあり、ここは見た目だけを担当する。
   テーマは html{font-size:62.5%}（1rem=10px）。.the_content の a・p・li・td などに
   font-size:1.5rem; line-height:2 が当たっているので、詳細度を上げて上書きする。 */
.izst-gs-main{--gs-blue:#00a0ff;--gs-line:rgba(255,255,255,.28);--gs-line2:rgba(255,255,255,.13);--gs-disp:"novecento-sans",sans-serif}

/* ---------- ページの枠・題名 ---------- */
.izst-gs-main .page_common{padding-top:70px}
.izst-gs-main .page_common .page_common_title{margin-bottom:0;padding:25px 4% 0}
.izst-gs-main .page_common .page_common_title .page_title{max-width:900px;margin:0 auto;padding-bottom:.7em;font-size:3.6rem;line-height:1.5;letter-spacing:.05em;text-wrap:balance}
.izst-gs-main .page_news_block{padding-top:44px}
.izst-gs-main .news_block .main_width{max-width:880px}

.izst-gs-main .the_content{color:#fff}
.izst-gs-main .the_content p{margin-bottom:1.5em;font-size:1.65rem;line-height:2.05;letter-spacing:.03em}
.izst-gs-main .the_content p a,.izst-gs-main .the_content li a,.izst-gs-main .the_content td a{font-size:inherit;line-height:inherit;color:#8fd0ff;font-weight:700;text-decoration:underline;text-underline-offset:.18em;word-break:normal;overflow-wrap:anywhere}
.izst-gs-main .the_content strong{font-size:inherit;line-height:inherit;font-weight:700;color:#fff}
.izst-gs-main .the_content img{display:block;max-width:100%;height:auto;margin-bottom:0}

/* ---------- 冒頭 ---------- */
.izst-gs-main .the_content .izst-gs-lead{font-size:1.8rem;line-height:2.1;letter-spacing:.04em;margin-bottom:34px}
.izst-gs-main .the_content .izst-gs-hero{margin:0 0 14px}
.izst-gs-main .the_content .izst-gs-hero img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--gs-line2)}
.izst-gs-main .the_content .izst-gs-meta{margin-bottom:46px;font-size:1.3rem;line-height:1.8;color:#b9b9b9;letter-spacing:.06em;text-align:right}

.izst-gs-main .the_content .izst-gs-sum{margin:0 0 34px;padding:30px 34px 14px;background:rgba(0,160,255,.09);border:1px solid rgba(0,160,255,.45)}
.izst-gs-main .the_content .izst-gs-sum-t,.izst-gs-main .the_content .izst-gs-toc-t,.izst-gs-main .the_content .izst-gs-rel-t,.izst-gs-main .the_content .izst-gs-about-t{margin-bottom:16px;font-size:1.5rem;line-height:1.6;font-weight:700;letter-spacing:.14em;color:var(--gs-blue)}
.izst-gs-main .the_content .izst-gs-sum ul{margin-bottom:0}
.izst-gs-main .the_content .izst-gs-sum li{font-size:1.55rem;line-height:1.95}

.izst-gs-main .the_content .izst-gs-toc{margin:0 0 20px;padding:28px 34px 12px;background:rgba(255,255,255,.045);border:1px solid var(--gs-line2)}
.izst-gs-main .the_content .izst-gs-toc ol{margin-bottom:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(6,auto);grid-auto-flow:column;column-gap:40px;counter-reset:toc}
.izst-gs-main .the_content .izst-gs-toc li{margin-bottom:.55em;padding-left:2.1em;text-indent:0;font-size:1.5rem;line-height:1.8;position:relative;counter-increment:toc}
.izst-gs-main .the_content .izst-gs-toc li::before{content:counter(toc,decimal-leading-zero);position:absolute;left:0;top:.18em;padding:0;font-family:var(--gs-disp);font-weight:600;font-size:1.4rem;line-height:1.8;letter-spacing:.06em;color:var(--gs-blue)}
.izst-gs-main .the_content .izst-gs-toc li a{color:#fff;font-weight:500;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.3)}
.izst-gs-main .the_content .izst-gs-toc li a:hover{color:var(--gs-blue);border-color:var(--gs-blue)}

/* ---------- 見出し ---------- */
/* 目次から移動したとき、右上のメニューボタンと重ならないよう、見出しの上に余白（padding）を持たせる。
   テーマの移動処理は見出しの上端にぴったり合わせるため、margin ではなく padding で空ける。左の青い線は背景で描く。 */
.izst-gs-main .the_content h2{margin:8px 0 34px;padding:80px 0 18px 22px;border-left:0;border-bottom:1px solid var(--gs-line);background:linear-gradient(var(--gs-blue),var(--gs-blue)) no-repeat left bottom/5px calc(100% - 80px);font-size:2.8rem;line-height:1.55;font-weight:700;letter-spacing:.06em}
.izst-gs-main .the_content h3{margin:52px 0 22px;padding:0 0 0 16px;border:0;border-left:3px solid #fff;font-size:2.05rem;line-height:1.6;font-weight:700;letter-spacing:.05em}

/* ---------- 箇条書き ---------- */
.izst-gs-main .the_content ul,.izst-gs-main .the_content ol{margin-bottom:30px}
.izst-gs-main .the_content ul li,.izst-gs-main .the_content ol li{margin-bottom:.75em;font-size:1.6rem;line-height:2;letter-spacing:.03em}
.izst-gs-main .the_content ul li{padding-left:1.25em}
.izst-gs-main .the_content ul li::before{top:.86em;background-color:var(--gs-blue)}
.izst-gs-main .the_content ol li{padding-left:1.9em;text-indent:0;position:relative}
.izst-gs-main .the_content ol li::before{position:absolute;left:0;top:0;padding-right:0;font-family:var(--gs-disp);font-weight:600;color:var(--gs-blue)}

/* ---------- 3Dデモ ---------- */
.izst-gs-main .the_content .izst-gs-demo{position:relative;margin:30px 0 12px;aspect-ratio:16/9;background:#0b0d10;border:1px solid var(--gs-line);overflow:hidden}
.izst-gs-main .the_content .izst-gs-demo img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;filter:brightness(.62)}
.izst-gs-main .the_content .izst-gs-demo iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0;background:#fff}
.izst-gs-demo-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;gap:14px;padding:18px 30px 18px 24px;background:#fff;color:#000;border:0;border-radius:0;font-family:inherit;font-size:1.6rem;line-height:1.5;font-weight:700;letter-spacing:.05em;cursor:pointer;white-space:nowrap;transition:background .3s,color .3s}
.izst-gs-demo-btn::before{content:"";width:0;height:0;border-left:15px solid currentColor;border-top:10px solid transparent;border-bottom:10px solid transparent}
.izst-gs-demo-btn:hover,.izst-gs-demo-btn:focus-visible{background:var(--gs-blue);color:#fff}
.izst-gs-main .the_content .izst-gs-cap{margin-bottom:30px;font-size:1.35rem;line-height:1.9;color:#c4c4c4}

/* ---------- 仕組み（4段階）・3つの表し方 ---------- */
.izst-gs-main .the_content ol.izst-gs-steps,.izst-gs-main .the_content ul.izst-gs-three{display:grid;gap:18px;margin:30px 0 34px;padding:0;list-style:none;counter-reset:none}
.izst-gs-main .the_content ol.izst-gs-steps{grid-template-columns:repeat(2,1fr)}
.izst-gs-main .the_content ul.izst-gs-three{grid-template-columns:repeat(3,1fr)}
.izst-gs-main .the_content ol.izst-gs-steps > li,.izst-gs-main .the_content ul.izst-gs-three > li{margin:0;padding:16px 16px 18px;background:rgba(255,255,255,.045);border:1px solid var(--gs-line2);text-indent:0}
.izst-gs-main .the_content ol.izst-gs-steps > li::before,.izst-gs-main .the_content ul.izst-gs-three > li::before{content:none}
.izst-gs-main .the_content .izst-gs-steps img,.izst-gs-main .the_content .izst-gs-three img{width:100%;height:auto;border:1px solid rgba(255,255,255,.08);background:#0b0d10}
.izst-gs-main .the_content .izst-gs-steps-h,.izst-gs-main .the_content .izst-gs-three-h{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 12px;margin:16px 0 8px;font-size:1.9rem;line-height:1.5;font-weight:700;letter-spacing:.05em}
.izst-gs-main .the_content .izst-gs-steps-h span,.izst-gs-main .the_content .izst-gs-three-h span{font-family:var(--gs-disp);font-weight:600;font-size:1.35rem;line-height:1.5;letter-spacing:.18em;color:var(--gs-blue)}
.izst-gs-main .the_content .izst-gs-steps li > p:last-child,.izst-gs-main .the_content .izst-gs-three li > p:last-child{margin-bottom:0;font-size:1.48rem;line-height:1.9;color:#e4e4e4}

/* ---------- 補足の囲み ---------- */
.izst-gs-main .the_content .izst-gs-note{margin:34px 0;padding:26px 30px 6px;background:rgba(255,255,255,.05);border-left:4px solid #fff}
.izst-gs-main .the_content .izst-gs-note p.izst-gs-note-t{margin-bottom:10px;font-size:1.75rem;line-height:1.6;font-weight:700;letter-spacing:.04em}
.izst-gs-main .the_content .izst-gs-note p{font-size:1.55rem;line-height:2}

/* ---------- 表 ---------- */
.izst-gs-main .the_content .izst-gs-tblwrap{margin:30px 0 34px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.izst-gs-main .the_content table.izst-gs-tbl{width:100%;min-width:760px;margin:0;border-collapse:collapse;table-layout:fixed}
.izst-gs-main .the_content .izst-gs-tbl th,.izst-gs-main .the_content .izst-gs-tbl td{padding:14px 14px;border:1px solid var(--gs-line);font-size:1.42rem;line-height:1.75;text-align:left;vertical-align:top;letter-spacing:.02em}
.izst-gs-main .the_content .izst-gs-tbl thead th{background:rgba(255,255,255,.1);border-bottom:2px solid #fff;font-weight:700;text-align:center;vertical-align:middle}
.izst-gs-main .the_content .izst-gs-tbl tbody th{width:8.2em;background:rgba(255,255,255,.05);border-bottom:1px solid var(--gs-line);font-weight:700}
.izst-gs-main .the_content .izst-gs-tbl thead th:nth-child(2),.izst-gs-main .the_content .izst-gs-tbl tbody td:nth-child(2){background:rgba(0,160,255,.1)}
.izst-gs-main .the_content .izst-gs-tbl thead th:nth-child(2){background:rgba(0,160,255,.3)}
.izst-gs-main .the_content table.izst-gs-tbl-2{min-width:0;table-layout:auto}
.izst-gs-main .the_content .izst-gs-tbl-2 thead th:nth-child(2),.izst-gs-main .the_content .izst-gs-tbl-2 tbody td:nth-child(2){background:transparent}
.izst-gs-main .the_content .izst-gs-tbl-2 thead th:nth-child(2){background:rgba(255,255,255,.1)}
.izst-gs-main .the_content .izst-gs-tbl-2 th,.izst-gs-main .the_content .izst-gs-tbl-2 td{width:50%;font-size:1.48rem;line-height:1.9}
.izst-gs-main .the_content table.izst-gs-tbl-f{min-width:560px}
.izst-gs-main .the_content .izst-gs-tbl-f tbody th{width:6.4em;font-family:var(--gs-disp),"Yu Gothic Medium","游ゴシック Medium",YuGothic,sans-serif;letter-spacing:.06em}
.izst-gs-main .the_content .izst-gs-tbl-f thead th:nth-child(2),.izst-gs-main .the_content .izst-gs-tbl-f tbody td:nth-child(2){background:transparent}
.izst-gs-main .the_content .izst-gs-tbl-f thead th:nth-child(2){background:rgba(255,255,255,.1)}
.izst-gs-main .the_content .izst-gs-tbl-f thead th:first-child{width:7.2em}
.izst-gs-main .the_content .izst-gs-tbl-f thead th:last-child{width:30%}

/* ---------- 使われ方のカード ---------- */
.izst-gs-main .the_content .izst-gs-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:30px 0 34px}
.izst-gs-main .the_content .izst-gs-card{background:rgba(255,255,255,.045);border:1px solid var(--gs-line2)}
.izst-gs-main .the_content .izst-gs-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.izst-gs-main .the_content .izst-gs-card h3{margin:20px 20px 10px;padding:0 0 0 12px;border-left:3px solid var(--gs-blue);font-size:1.85rem;line-height:1.55}
.izst-gs-main .the_content .izst-gs-card p{margin:0 20px 14px;font-size:1.48rem;line-height:1.95}
.izst-gs-main .the_content .izst-gs-card .izst-gs-more{margin-bottom:20px;font-size:1.38rem;line-height:1.9}

/* ---------- 依頼の案内 ---------- */
.izst-gs-main .the_content .izst-gs-pts{display:grid;gap:14px;margin:26px 0 30px}
.izst-gs-main .the_content .izst-gs-pts > div{padding:22px 26px 4px;background:rgba(255,255,255,.045);border:1px solid var(--gs-line2);border-left:4px solid var(--gs-blue)}
.izst-gs-main .the_content .izst-gs-pts-h{margin-bottom:8px;font-size:1.8rem;line-height:1.6;font-weight:700;letter-spacing:.04em}
.izst-gs-main .the_content .izst-gs-pts p:last-child{font-size:1.55rem;line-height:2}

.izst-gs-main .the_content ol.izst-gs-flow{margin:26px 0 34px;padding:0;counter-reset:flow}
.izst-gs-main .the_content ol.izst-gs-flow > li{position:relative;margin:0;padding:18px 0 18px 74px;border-top:1px solid var(--gs-line2);counter-increment:flow;text-indent:0}
.izst-gs-main .the_content ol.izst-gs-flow > li:last-child{border-bottom:1px solid var(--gs-line2)}
.izst-gs-main .the_content ol.izst-gs-flow > li::before{content:"0" counter(flow);position:absolute;left:4px;top:15px;padding:0;font-family:var(--gs-disp);font-weight:600;font-size:3rem;line-height:1.3;letter-spacing:.04em;color:var(--gs-blue)}
.izst-gs-main .the_content ol.izst-gs-flow strong{display:block;font-size:1.75rem;line-height:1.6;letter-spacing:.05em}
.izst-gs-main .the_content ol.izst-gs-flow span{display:block;margin-top:2px;font-size:1.5rem;line-height:1.9;color:#dedede}

.izst-gs-main .the_content ul.izst-gs-check{margin:22px 0 34px;padding:8px 26px;background:rgba(255,255,255,.045);border:1px solid var(--gs-line2)}
.izst-gs-main .the_content ul.izst-gs-check li{margin:0;padding:14px 0 14px 36px;border-top:1px solid var(--gs-line2);font-size:1.55rem;line-height:1.9}
.izst-gs-main .the_content ul.izst-gs-check li:first-child{border-top:0}
.izst-gs-main .the_content ul.izst-gs-check li::before{top:1.28em;left:4px;width:15px;height:8px;margin:0;background:transparent;border-radius:0;border-left:3px solid var(--gs-blue);border-bottom:3px solid var(--gs-blue);transform:rotate(-45deg)}

/* ---------- 問い合わせへの誘導 ---------- */
.izst-gs-main .the_content .izst-gs-cta{margin:60px 0 20px;padding:42px 40px 34px;text-align:center;background:linear-gradient(135deg,rgba(0,160,255,.26),rgba(0,160,255,.06));border:1px solid rgba(0,160,255,.6)}
.izst-gs-main .the_content .izst-gs-cta-s{margin-top:54px}
.izst-gs-main .the_content .izst-gs-cta p.izst-gs-cta-h{margin-bottom:14px;font-size:2.3rem;line-height:1.6;font-weight:700;letter-spacing:.05em}
.izst-gs-main .the_content .izst-gs-cta p{font-size:1.55rem;line-height:2}
.izst-gs-main .the_content .izst-gs-btns{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 0}
.izst-gs-main .the_content .izst-gs-cta .izst-gs-btns,.izst-gs-main .the_content .izst-gs-btns-c{justify-content:center}
.izst-gs-main .the_content .izst-gs-btns-c{margin:34px 0 0}
.izst-gs-main .the_content a.izst-gs-btn{display:inline-block;position:relative;min-width:230px;padding:.95em 3.2em .95em 2.2em;background:#fff;color:#000;font-size:1.55rem;line-height:1.6;font-weight:700;letter-spacing:.05em;text-align:center;text-decoration:none;transition:background .3s,color .3s}
.izst-gs-main .the_content a.izst-gs-btn::after{position:absolute;top:0;bottom:0;right:16px;content:"";width:10px;height:14.72px;margin:auto;background-color:currentColor;-webkit-clip-path:polygon(0 0,70% 50%,0 100%);clip-path:polygon(0 0,70% 50%,0 100%)}
.izst-gs-main .the_content a.izst-gs-btn:hover{background:var(--gs-blue);color:#fff}
.izst-gs-main .the_content a.izst-gs-btn-line{background:rgba(0,0,0,.35);color:#fff;border:1px solid #fff}
.izst-gs-main .the_content a.izst-gs-btn-line:hover{background:#fff;color:#000}

/* ---------- よくある質問 ---------- */
.izst-gs-main .the_content .izst-gs-faq{margin:30px 0 20px;border-top:1px solid var(--gs-line)}
.izst-gs-main .the_content .izst-gs-q{border-bottom:1px solid var(--gs-line)}
.izst-gs-main .the_content .izst-gs-q summary{position:relative;padding:22px 50px 22px 46px;font-size:1.7rem;line-height:1.75;font-weight:700;letter-spacing:.04em;cursor:pointer;list-style:none}
.izst-gs-main .the_content .izst-gs-q summary::-webkit-details-marker{display:none}
.izst-gs-main .the_content .izst-gs-q summary::before{content:"Q";position:absolute;left:6px;top:19px;font-family:var(--gs-disp);font-weight:600;font-size:2.3rem;line-height:1.5;color:var(--gs-blue)}
.izst-gs-main .the_content .izst-gs-q summary::after{content:"";position:absolute;right:14px;top:50%;width:11px;height:11px;margin-top:-9px;border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(45deg);transition:transform .3s}
.izst-gs-main .the_content .izst-gs-q[open] summary::after{transform:rotate(-135deg);margin-top:-3px}
.izst-gs-main .the_content .izst-gs-a{padding:0 20px 8px 46px}
.izst-gs-main .the_content .izst-gs-a p{font-size:1.55rem;line-height:2;color:#ececec}

/* ---------- 末尾 ---------- */
.izst-gs-main .the_content .izst-gs-rel,.izst-gs-main .the_content .izst-gs-about{margin:60px 0 0;padding:28px 32px 10px;background:rgba(255,255,255,.045);border:1px solid var(--gs-line2)}
.izst-gs-main .the_content .izst-gs-about{margin-top:20px}
.izst-gs-main .the_content .izst-gs-rel ul{margin-bottom:0;columns:2;column-gap:40px}
.izst-gs-main .the_content .izst-gs-rel li{display:inline-block;width:100%;font-size:1.5rem;line-height:1.85}
.izst-gs-main .the_content .izst-gs-about p:last-child{font-size:1.5rem;line-height:2}

/* ---------- スマートフォン ---------- */
@media screen and (max-width:767px){
.izst-gs-main .page_common{padding-top:76px}
.izst-gs-main .the_content .izst-gs-tblwrap:has(.izst-gs-tbl:not(.izst-gs-tbl-2))::before{content:"表は横に動かせます →";display:block;margin-bottom:8px;font-size:1.2rem;line-height:1.6;color:#b9b9b9;letter-spacing:.06em}
.izst-gs-main .page_common .page_common_title .page_title{font-size:2rem;line-height:1.6;letter-spacing:.03em}
.izst-gs-main .page_news_block{padding-top:30px}
.izst-gs-main .the_content p{font-size:1.55rem;line-height:2}
.izst-gs-main .the_content .izst-gs-lead{font-size:1.6rem;line-height:2;margin-bottom:24px}
.izst-gs-main .the_content .izst-gs-meta{margin-bottom:32px;font-size:1.2rem}
.izst-gs-main .the_content .izst-gs-sum,.izst-gs-main .the_content .izst-gs-toc,.izst-gs-main .the_content .izst-gs-rel,.izst-gs-main .the_content .izst-gs-about{padding:22px 18px 8px}
.izst-gs-main .the_content .izst-gs-sum li{font-size:1.48rem}
.izst-gs-main .the_content .izst-gs-toc ol{display:block}
.izst-gs-main .the_content .izst-gs-rel ul{columns:1}
.izst-gs-main .the_content h2{margin:0 0 26px;padding:64px 0 14px 16px;background-size:5px calc(100% - 64px);font-size:2.15rem}
.izst-gs-main .the_content h3{margin:40px 0 18px;font-size:1.8rem}
.izst-gs-main .the_content ul li,.izst-gs-main .the_content ol li{font-size:1.5rem;line-height:1.95}
.izst-gs-demo-btn{padding:14px 20px 14px 16px;font-size:1.4rem;gap:10px}
.izst-gs-main .the_content ol.izst-gs-steps,.izst-gs-main .the_content ul.izst-gs-three,.izst-gs-main .the_content .izst-gs-cards{grid-template-columns:1fr}
.izst-gs-main .the_content .izst-gs-steps img{max-width:440px;margin:0 auto}
.izst-gs-main .the_content .izst-gs-three img{max-width:440px;margin:0 auto}
.izst-gs-main .the_content .izst-gs-note{padding:20px 18px 2px}
.izst-gs-main .the_content .izst-gs-tbl th,.izst-gs-main .the_content .izst-gs-tbl td{padding:11px 10px;font-size:1.35rem}
.izst-gs-main .the_content table.izst-gs-tbl-2{min-width:0}
.izst-gs-main .the_content .izst-gs-tbl-2 th,.izst-gs-main .the_content .izst-gs-tbl-2 td{font-size:1.38rem;line-height:1.85}
.izst-gs-main .the_content .izst-gs-pts > div{padding:18px 18px 2px}
.izst-gs-main .the_content ol.izst-gs-flow > li{padding-left:56px}
.izst-gs-main .the_content ol.izst-gs-flow > li::before{font-size:2.4rem;top:18px}
.izst-gs-main .the_content ul.izst-gs-check{padding:4px 16px}
.izst-gs-main .the_content .izst-gs-cta{margin:46px 0 14px;padding:30px 18px 26px}
.izst-gs-main .the_content .izst-gs-cta p.izst-gs-cta-h{font-size:1.9rem}
.izst-gs-main .the_content .izst-gs-btns{flex-direction:column;align-items:stretch}
.izst-gs-main .the_content a.izst-gs-btn{min-width:0}
.izst-gs-main .the_content .izst-gs-q summary{padding:18px 36px 18px 38px;font-size:1.55rem}
.izst-gs-main .the_content .izst-gs-q summary::before{left:2px;top:16px;font-size:2rem}
.izst-gs-main .the_content .izst-gs-a{padding:0 4px 4px 38px}
}