/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:"Roboto","Noto Sans JP","Hiragino Sans","ヒラギノ角ゴ ProN","Yu Gothic","Meiryo",sans-serif;color:#0f0f0f;background:#ffffff;line-height:1.7;font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}

/* ===== Design Tokens ===== */
:root{
  --yc-bg:#ffffff;
  --yc-bg-soft:#f9f9f9;
  --yc-bg-hover:#f2f2f2;
  --yc-line:#e5e5e5;
  --yc-line-soft:#f0f0f0;
  --yc-text:#0f0f0f;
  --yc-muted:#606060;
  --yc-dim:#909090;
  --yc-red:#ff0000;
  --yc-red-hov:#cc0000;
  --yc-red-soft:#fff0f0;
  --yc-blue:#065fd4;
  --yc-yellow:#FFE98A;
  --yc-radius:12px;
  --yc-radius-lg:16px;
}

/* ===== Header ===== */
.yc-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--yc-line);
  padding:10px 24px;
}
.yc-header__inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.yc-logo{display:flex;align-items:center;gap:10px;height:40px}
.yc-logo img{height:40px;width:auto}
/* スマホ専用改行（PCでは非表示） */
.sp-br{display:none}
@media (max-width:960px){.sp-br{display:inline}}

.yc-nav{display:flex;align-items:center;gap:20px;font-size:14px;flex-wrap:wrap}
.yc-nav > a{color:var(--yc-text);font-weight:500;white-space:nowrap}
.yc-nav > a:hover{color:var(--yc-red)}

/* サービスドロップダウン */
.yc-nav__item--has-dropdown{position:relative}
.yc-nav__toggle{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;border:none;cursor:pointer;padding:0;
  color:var(--yc-text);font-weight:500;font-size:14px;font-family:inherit;
}
.yc-nav__toggle:hover{color:var(--yc-red)}
.yc-nav__toggle svg{transition:transform .2s}
.yc-nav__item--has-dropdown.is-open .yc-nav__toggle svg{transform:rotate(180deg)}
.yc-nav__dropdown{
  position:absolute;top:calc(100% + 12px);left:-16px;
  min-width:280px;background:#fff;
  border:1px solid var(--yc-line);border-radius:12px;
  box-shadow:0 16px 40px rgba(15,15,15,.1);
  padding:8px;z-index:105;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.yc-nav__item--has-dropdown.is-open .yc-nav__dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.yc-nav__dropdown::before{content:"";position:absolute;top:-18px;left:0;right:0;height:18px;background:transparent}
.yc-nav__dropdown a{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 16px;border-radius:8px;
  color:var(--yc-text);font-weight:700;font-size:16px;line-height:1.4;
  white-space:nowrap;transition:background .15s,color .15s;
}
.yc-nav__dropdown a:hover{background:var(--yc-red-soft);color:var(--yc-red)}
.yc-nav__dropdown-sub{display:block;font-size:11px;font-weight:500;color:var(--yc-muted);margin-top:2px}
.yc-nav__dropdown a:hover .yc-nav__dropdown-sub{color:var(--yc-red);opacity:.8}

/* モバイルナビのグループ見出し */
.yc-mobile-nav__group{
  color:rgba(255,255,255,.5);font-size:11px;font-weight:700;letter-spacing:.1em;
  padding:14px 8px 8px;border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:2px;
}
.yc-mobile-nav__sub{padding-left:18px !important;font-size:15px !important}
.yc-header__ctas{display:flex;gap:10px}
.yc-header__cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:999px;
  font-weight:700;font-size:14px;
  transition:background .15s,border-color .15s;
}
.yc-header__cta--primary{background:var(--yc-red);color:#fff !important}
.yc-header__cta--primary:hover{background:var(--yc-red-hov)}
.yc-header__cta--ghost{border:1px solid var(--yc-line);color:var(--yc-text)}
.yc-header__cta--ghost:hover{background:var(--yc-bg-hover)}
.yc-header__cta svg{width:11px;height:11px;fill:currentColor}

/* ハンバーガーボタン */
.yc-hamburger{
  display:none;
  width:40px;height:40px;background:transparent;border:none;cursor:pointer;
  padding:0;position:relative;flex-direction:column;gap:6px;
  align-items:center;justify-content:center;
}
.yc-hamburger span{
  display:block;width:24px;height:2px;background:var(--yc-text);
  border-radius:2px;transition:transform .25s ease,opacity .25s ease;
}
.yc-hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.yc-hamburger.is-open span:nth-child(2){opacity:0}
.yc-hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* モバイルオーバーレイメニュー（ヘッダーの下に配置） */
.yc-mobile-nav{
  position:fixed;top:60px;left:0;right:0;bottom:0;z-index:99;
  background:rgba(15,15,15,.98);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,visibility .25s ease;
  overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding:32px 28px calc(48px + env(safe-area-inset-bottom,0px));
}
.yc-mobile-nav.is-open{opacity:1;visibility:visible;pointer-events:auto}
.yc-mobile-nav__inner{max-width:420px;margin:0 auto}
.yc-mobile-nav__list{display:flex;flex-direction:column;gap:2px;margin-bottom:28px}
.yc-mobile-nav__list a{
  display:block;padding:16px 8px;
  font-size:16px;font-weight:700;color:#fff;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.yc-mobile-nav__list a:hover,.yc-mobile-nav__list a:active{color:#FFE98A}
.yc-mobile-nav__ctas{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.yc-mobile-nav__ctas .yc-btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}

@media (max-width:1100px){
  .yc-nav{display:none}
  .yc-header__ctas{display:none}
  .yc-hamburger{display:flex}
}

/* ===== Hero ===== */
.yc-hero{
  position:relative;overflow:hidden;
  background:var(--yc-bg-soft);
  padding:56px 24px 72px;
  border-bottom:1px solid var(--yc-line);
}

/* 赤い細線が左→右に流れるデータストリーム風アニメーション
   - GPU合成（transform のみ）使用
   - box-shadow 単一層・contain でペイント領域分離
   - LCP影響ゼロ・CPU ほぼ消費なし */
.yc-hero-lines{
  position:absolute;inset:0;pointer-events:none;z-index:0;
  overflow:hidden;
  contain:layout paint;  /* 描画を他要素から隔離 */
}
.yc-hero-lines span{
  position:absolute;display:block;
  left:-40%;
  background:linear-gradient(90deg,
    transparent 0%,
    rgba(255,0,0,.2) 20%,
    rgba(255,40,40,.9) 50%,
    rgba(255,0,0,.2) 80%,
    transparent 100%
  );
  box-shadow:0 0 6px rgba(255,0,0,.4);
  border-radius:999px;
  will-change:transform;
  transform:translateZ(0);  /* GPU レイヤー作成の強制 */
  animation:yc-hero-flow linear infinite;
}
/* 5本の線。縦位置・幅・速度・タイミングを差別化 */
.yc-hero-lines span:nth-child(1){top:14%; width:26%; animation-duration:4.2s; animation-delay:0s;   opacity:.9; height:1.5px}
.yc-hero-lines span:nth-child(2){top:32%; width:40%; animation-duration:6.0s; animation-delay:1.2s; opacity:.55; height:2px}
.yc-hero-lines span:nth-child(3){top:52%; width:18%; animation-duration:3.5s; animation-delay:2.4s; opacity:1;   height:1px}
.yc-hero-lines span:nth-child(4){top:70%; width:32%; animation-duration:5.2s; animation-delay:.6s;  opacity:.6;  height:1.5px}
.yc-hero-lines span:nth-child(5){top:86%; width:22%; animation-duration:4.0s; animation-delay:3.0s; opacity:.8;  height:1px}

@keyframes yc-hero-flow{
  0%   {transform:translateX(0)}
  100% {transform:translateX(260vw)}
}
@media (prefers-reduced-motion: reduce){
  .yc-hero-lines span{animation:none;opacity:0}
}

.yc-hero__inner{
  position:relative;z-index:1;
  max-width:1280px;margin:0 auto;
  display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;
}
.yc-hero__body{max-width:600px}
.yc-hero__eyebrow{
  display:inline-block;font-size:14px;font-weight:700;
  color:var(--yc-red);letter-spacing:.08em;
  margin-bottom:20px;
  padding:6px 12px;background:var(--yc-red-soft);border-radius:4px;
}
.yc-hero__title{
  font-size:44px;font-weight:900;line-height:1.3;
  letter-spacing:-.01em;color:var(--yc-text);
  margin-bottom:20px;
}
.yc-hero__title em{font-style:normal;color:var(--yc-red)}
.yc-hero__lead{
  font-size:22px;font-weight:700;color:var(--yc-text);
  line-height:1.7;letter-spacing:.01em;margin-bottom:28px;
}
.yc-ribbon{
  margin-bottom:28px;
  background:#1a1a1a;color:#fff;
  padding:14px 22px;border-radius:8px;text-align:center;
  font-size:16px;font-weight:700;letter-spacing:.02em;line-height:1.5;
}
.yc-ribbon em{
  font-style:normal;color:var(--yc-yellow);
  background:linear-gradient(transparent 60%,rgba(255,233,138,.28) 60%);
  padding:0 4px;
}
.yc-hero__ctas{display:flex;gap:12px;flex-wrap:wrap}
.yc-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 28px;border-radius:999px;
  font-weight:700;font-size:15px;
  transition:background .15s,border-color .15s,transform .15s;
}
.yc-btn:hover{transform:translateY(-1px)}
.yc-btn--primary{background:var(--yc-red);color:#fff}
.yc-btn--primary:hover{background:var(--yc-red-hov)}
.yc-btn--primary svg{fill:#fff}
.yc-btn--ghost{background:#fff;color:var(--yc-text);border:1px solid var(--yc-line)}
.yc-btn--ghost:hover{background:var(--yc-bg-hover);border-color:#ccc}
.yc-btn svg{width:14px;height:14px}

/* Hero right — 対談動画 */
.yc-hero__media{position:relative}
.yc-thumb{
  position:relative;display:block;aspect-ratio:16/9;
  border-radius:var(--yc-radius-lg);overflow:hidden;
  box-shadow:0 20px 48px rgba(15,15,15,.12);
  background:#000;transition:transform .2s,box-shadow .2s;
}
.yc-thumb:hover{transform:translateY(-2px);box-shadow:0 24px 56px rgba(15,15,15,.16)}
.yc-thumb__img{width:100%;height:100%;object-fit:cover}
.yc-thumb__play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:72px;height:72px;border-radius:50%;
  background:var(--yc-red);display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(0,0,0,.35);
  transition:transform .2s;pointer-events:none;
}
.yc-thumb:hover .yc-thumb__play{transform:translate(-50%,-50%) scale(1.08)}
.yc-thumb__play svg{width:26px;height:26px;fill:#fff;margin-left:4px}
.yc-thumb__caption{margin-top:14px;display:flex;gap:12px;align-items:flex-start}
.yc-thumb__avatar{
  padding:5px 10px;border-radius:999px;
  background:var(--yc-red);
  flex-shrink:0;display:inline-flex;align-items:center;
  font-weight:700;color:#fff;font-size:11px;letter-spacing:.5px;
  white-space:nowrap;line-height:1.2;
}
.yc-thumb__meta h3{font-size:15px;font-weight:700;line-height:1.4;color:var(--yc-text);margin-bottom:4px}
.yc-thumb__meta p{font-size:14px;color:var(--yc-muted)}
.yc-thumb__meta p span{margin-left:6px}
.yc-thumb__meta p span::before{content:"・";margin-right:6px;color:var(--yc-dim)}

/* ===== 実績バー（YouTubeレッドメイン × 黒アクセント） ===== */
.yc-metrics{
  color:#fff;padding:48px 24px;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(0,0,0,.38) 0%, transparent 55%),
    radial-gradient(ellipse at 100% 100%, rgba(0,0,0,.32) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 20%, rgba(255,100,100,.35) 0%, transparent 50%),
    linear-gradient(135deg, #E60000 0%, #FF0000 35%, #CC0000 70%, #A30000 100%);
}
.yc-metrics::before{
  content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:28px 28px;
}
.yc-metrics::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.55) 50%,transparent 100%);
}
.yc-metrics__inner{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  position:relative;z-index:1;
}
.yc-metric{
  text-align:center;padding:16px 16px;
  border-right:1px solid rgba(255,255,255,.18);
  position:relative;
}
.yc-metric::after{
  content:"";position:absolute;right:0;top:30%;bottom:30%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.55),transparent);
  pointer-events:none;
}
.yc-metric:last-child{border-right:none}
.yc-metric:last-child::after{display:none}
.yc-metric__label{
  font-family:"Roboto",sans-serif;font-size:12px;font-weight:700;
  color:rgba(255,255,255,.82);letter-spacing:.16em;margin-bottom:10px;
}
.yc-metric__num{
  font-family:"Roboto",sans-serif;font-weight:900;
  font-size:48px;line-height:1;letter-spacing:-.015em;
  color:#fff;
  text-shadow:0 2px 24px rgba(0,0,0,.3),0 1px 0 rgba(255,255,255,.15);
  display:inline-block;
}
.yc-metric__num .yc-metric__unit{
  font-size:22px;font-weight:700;margin-left:2px;
  color:#fff1ce;
}
.yc-metric__sub{
  font-size:11px;color:rgba(255,255,255,.72);margin-top:8px;letter-spacing:.02em;
}

/* ===== CTA帯（実績直下） ===== */
.yc-cta-bar{
  padding:40px 24px;
  background:linear-gradient(135deg,#fff5f5 0%,#ffffff 50%,#fff0e0 100%);
  text-align:center;
}
.yc-cta-bar__inner{max-width:960px;margin:0 auto}
.yc-cta-bar__title{font-size:22px;font-weight:800;margin-bottom:20px;color:var(--yc-text)}
.yc-cta-bar__title em{font-style:normal;color:var(--yc-red)}
.yc-cta-bar__ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ===== Section Commons ===== */
.yc-section{padding:96px 24px;scroll-margin-top:80px}
.yc-section--soft{background:var(--yc-bg-soft)}
.yc-section--dark{background:#0f0f0f;color:#fff}
.yc-section__inner{max-width:1200px;margin:0 auto}
.yc-section__eyebrow{
  display:inline-block;font-size:14px;font-weight:700;
  color:var(--yc-red);letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:14px;padding:6px 12px;background:var(--yc-red-soft);border-radius:4px;
}
.yc-section--dark .yc-section__eyebrow{background:rgba(255,0,0,.16);color:#ff7070}
.yc-section__title{
  font-size:34px;font-weight:900;line-height:1.4;letter-spacing:-.005em;
  color:inherit;margin-bottom:18px;
}
.yc-section__title em{font-style:normal;color:var(--yc-red)}
.yc-section__sub{font-size:16px;color:var(--yc-muted);line-height:1.85;margin-bottom:48px}
.yc-section--dark .yc-section__sub{color:#aaa}
.yc-section__head{text-align:center;margin-bottom:52px}

/* ===== Section: 制作実績マーキー（3段・方向違い） ===== */
.yc-marquee{
  display:flex;flex-direction:column;gap:14px;
  overflow:hidden;padding:8px 0;
  mask-image:linear-gradient(to right,transparent 0%,#000 6%,#000 94%,transparent 100%);
  -webkit-mask-image:linear-gradient(to right,transparent 0%,#000 6%,#000 94%,transparent 100%);
}
.yc-marquee__row{overflow:hidden;display:flex}
.yc-marquee__track{
  display:flex;gap:14px;flex-shrink:0;
  animation-duration:50s;animation-timing-function:linear;animation-iteration-count:infinite;
  will-change:transform;
}
.yc-marquee__row:hover .yc-marquee__track{animation-play-state:paused}
.yc-marquee__row--left .yc-marquee__track{animation-name:yc-marquee-left}
.yc-marquee__row--right .yc-marquee__track{animation-name:yc-marquee-right;animation-duration:60s}
.yc-marquee__row--center .yc-marquee__track{animation-name:yc-marquee-left;animation-duration:45s}
@keyframes yc-marquee-left{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}
@keyframes yc-marquee-right{
  from{transform:translateX(-50%)}
  to{transform:translateX(0)}
}
.yc-marquee__item{
  flex-shrink:0;width:240px;aspect-ratio:16/9;
  border-radius:var(--yc-radius);overflow:hidden;background:#eee;
  position:relative;
  transition:transform .2s,box-shadow .2s;
}
.yc-marquee__item:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,15,15,.15);z-index:2}
.yc-marquee__item img{width:100%;height:100%;object-fit:cover}
.yc-marquee__item::after{
  content:"";position:absolute;top:8px;right:8px;
  width:22px;height:22px;border-radius:50%;background:rgba(255,0,0,.85);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'><path d='M8 5v14l11-7z'/></svg>");
  background-size:11px;background-repeat:no-repeat;background-position:center;
  opacity:.85;
}

/* ===== Section: 成果事例カード3件 ===== */
.yc-cases{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:1200px;margin:0 auto;
}
.yc-case{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s,box-shadow .2s;
}
.yc-case:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(15,15,15,.1)}
.yc-case__thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#f0f0f0}
.yc-case__thumb img{width:100%;height:100%;object-fit:cover}
.yc-case__badge{
  position:absolute;top:12px;left:12px;
  background:var(--yc-red);color:#fff;
  padding:4px 10px;border-radius:4px;
  font-family:"Roboto",sans-serif;font-size:11px;font-weight:800;letter-spacing:.04em;
}
.yc-case__body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.yc-case__tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.yc-case__tag{
  background:var(--yc-bg-soft);color:var(--yc-muted);
  padding:3px 10px;border-radius:4px;font-size:11px;font-weight:600;
}
.yc-case__title{
  font-size:17px;font-weight:800;line-height:1.5;margin-bottom:10px;color:var(--yc-text);
}
.yc-case__desc{font-size:14px;line-height:1.85;color:var(--yc-muted);flex:1}
.yc-case__num{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--yc-line);
  font-family:"Roboto",sans-serif;font-weight:900;font-size:26px;color:var(--yc-red);
  letter-spacing:-.01em;
}
.yc-case__num-pre{
  font-family:inherit;font-size:14px;font-weight:700;
  color:var(--yc-text);margin-right:6px;letter-spacing:0;
}
@media (max-width:560px){
  .yc-case__num{font-size:20px}
  .yc-case__num-pre{font-size:12px}
}

/* ===== Section: 業種別実績（写真丸マスク） ===== */
.yc-industry{
  display:grid;grid-template-columns:repeat(6,1fr);gap:20px;
  max-width:1120px;margin:0 auto;
}
.yc-industry__item{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  padding:22px 14px 18px;text-align:center;
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.yc-industry__item:hover{transform:translateY(-3px);border-color:var(--yc-red);box-shadow:0 12px 26px rgba(255,0,0,.08)}
.yc-industry__photo{
  width:84px;height:84px;margin:0 auto 14px;
  border-radius:50%;overflow:hidden;
  border:3px solid #fff;box-shadow:0 4px 12px rgba(15,15,15,.1);
  position:relative;
}
.yc-industry__photo img{width:100%;height:100%;object-fit:cover;display:block}
.yc-industry__name{font-size:14px;font-weight:700;margin-bottom:4px;color:var(--yc-text)}
.yc-industry__num{font-family:"Roboto",sans-serif;font-weight:900;font-size:16px;color:var(--yc-red);letter-spacing:-.005em}

/* ===== Section: リード（春名画像＋吹き出し） ===== */
.yc-lead--speech{
  display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:flex-start;
  max-width:960px;margin:0 auto;
}
.yc-lead__person{
  position:sticky;top:100px;
}
.yc-lead__avatar{
  width:240px;height:240px;border-radius:50%;overflow:hidden;
  margin:0 auto;
  border:6px solid #fff;box-shadow:0 20px 44px rgba(15,15,15,.16);
  position:relative;
}
.yc-lead__avatar::before{
  content:"";position:absolute;inset:-10px;border-radius:50%;
  border:2px dashed var(--yc-red);opacity:.35;
}
.yc-lead__avatar img{width:100%;height:100%;object-fit:cover}
.yc-lead__label{
  text-align:center;margin-top:14px;
  font-size:14px;color:var(--yc-muted);font-weight:500;
}
.yc-lead__label strong{color:var(--yc-red);font-size:16px;display:block;margin-bottom:2px}
.yc-lead__bubbles{display:flex;flex-direction:column;gap:14px}
.yc-bubble{
  position:relative;background:#fff;
  border:1px solid var(--yc-line);border-radius:18px;
  padding:22px 28px;
  font-size:16px;line-height:1.95;color:var(--yc-text);font-weight:700;
  box-shadow:0 6px 18px rgba(15,15,15,.05);
}
.yc-bubble--strong{
  background:#fff5f5;border-color:#ffcccc;font-size:17px;
}
.yc-bubble::before{
  content:"";position:absolute;top:24px;right:-10px;
  width:0;height:0;border-style:solid;
  border-width:8px 0 8px 10px;
  border-color:transparent transparent transparent var(--yc-line);
}
.yc-bubble::after{
  content:"";position:absolute;top:24px;right:-9px;
  width:0;height:0;border-style:solid;
  border-width:8px 0 8px 10px;
  border-color:transparent transparent transparent #fff;
}
.yc-bubble--strong::after{border-color:transparent transparent transparent #fff5f5}

/* ===== Section: お客様の声（推薦コンテンツ） ===== */
.yc-voices{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:1120px;margin:0 auto;
}
.yc-voice{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  padding:32px 28px;position:relative;
  transition:transform .2s,box-shadow .2s;
}
.yc-voice--google{padding:24px 22px}
.yc-voice--google .yc-voice__body{font-size:14px;line-height:1.85;color:var(--yc-text);margin-bottom:0}
.yc-voice--cta{border:2px dashed var(--yc-line)}
.yc-voice:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(15,15,15,.08)}
.yc-voice__quote{
  position:absolute;top:-12px;left:24px;
  background:var(--yc-red);color:#fff;
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  font-family:"Roboto",serif;font-size:24px;font-weight:900;
  box-shadow:0 6px 14px rgba(255,0,0,.28);
}
.yc-voice__stars{
  color:#FFB800;font-size:16px;letter-spacing:2px;margin-bottom:10px;margin-top:6px;
}
.yc-voice__title{
  font-size:17px;font-weight:800;line-height:1.5;margin-bottom:12px;color:var(--yc-text);
}
.yc-voice__body{
  font-size:16px;line-height:1.95;color:var(--yc-muted);margin-bottom:22px;
}
.yc-voice__person{
  display:flex;gap:14px;align-items:center;
  padding-top:18px;border-top:1px solid var(--yc-line-soft);
}
.yc-voice__avatar{
  width:52px;height:52px;border-radius:50%;overflow:hidden;flex-shrink:0;
  border:2px solid var(--yc-line);background:var(--yc-bg-soft);
}
.yc-voice__avatar img{width:100%;height:100%;object-fit:cover;display:block}
.yc-voice__meta strong{display:block;font-size:16px;font-weight:700;color:var(--yc-text);margin-bottom:2px}
.yc-voice__meta span{font-size:12px;color:var(--yc-muted)}

/* ===== Section: 追伸（P.S. 春名から、あなたへ） ===== */
.yc-postscript{
  background:#fafaf7;
  padding:96px 24px;position:relative;overflow:hidden;
}
.yc-postscript::before{
  content:"P.S.";
  position:absolute;top:-20px;left:-10px;
  font-family:"Roboto","Times New Roman",serif;
  font-size:260px;font-weight:900;font-style:italic;
  color:rgba(255,0,0,.035);letter-spacing:-.05em;
  line-height:1;pointer-events:none;
}
.yc-postscript__inner{
  max-width:820px;margin:0 auto;position:relative;
}
.yc-postscript__head{text-align:center;margin-bottom:40px}
.yc-postscript__eyebrow{
  display:inline-block;font-family:"Roboto",serif;font-style:italic;
  font-size:16px;font-weight:700;color:var(--yc-red);letter-spacing:.24em;
  margin-bottom:14px;padding:6px 16px;background:#fff;border:1px solid var(--yc-line);border-radius:999px;
}
.yc-postscript__title{
  font-size:32px;font-weight:900;line-height:1.4;color:var(--yc-text);
  letter-spacing:-.005em;
}
.yc-postscript__title em{font-style:normal;color:var(--yc-red)}

.yc-postscript__letter{
  background:#fff;border-radius:var(--yc-radius-lg);
  padding:80px 56px 36px;
  box-shadow:0 18px 52px rgba(15,15,15,.08);
  position:relative;margin-top:60px;
}
.yc-postscript__letter::before{
  content:"";position:absolute;top:-60px;left:40px;
  width:120px;height:120px;border-radius:50%;background:#fff;
  border:5px solid #fff;box-shadow:0 10px 28px rgba(15,15,15,.15);
  overflow:hidden;
  background-image:url("../misc/person_haruna.jpg");
  background-size:cover;background-position:center 20%;
  transition:transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s ease;
  z-index:2;
}
.yc-postscript__letter:hover::before{
  transform:scale(1.12) rotate(-4deg);
  box-shadow:0 14px 36px rgba(255,0,0,.25), 0 0 0 8px rgba(255,0,0,.08);
}
.yc-postscript__letter p{
  font-size:16px;line-height:2.1;color:var(--yc-text);
  margin-bottom:18px;font-weight:500;
}
.yc-postscript__letter p:last-of-type{margin-bottom:0}

.yc-postscript__ps{
  margin-top:28px;padding:22px 26px;
  background:linear-gradient(180deg,#fff5f5 0%,#fff 100%);
  border-left:4px solid var(--yc-red);border-radius:8px;
}
.yc-postscript__ps-tag{
  display:inline-block;
  font-family:"Roboto",serif;font-style:italic;font-weight:900;
  font-size:15px;color:var(--yc-red);letter-spacing:.12em;
  margin-bottom:8px;
}
.yc-postscript__ps p{font-size:15px;line-height:1.95;color:var(--yc-text);font-weight:500;margin-bottom:0}

.yc-postscript__sign{
  margin-top:28px;padding-top:24px;
  border-top:1px dashed var(--yc-line);
  text-align:right;font-size:16px;color:var(--yc-muted);
}
.yc-postscript__sign strong{
  font-family:"Times New Roman",serif;font-style:italic;
  font-size:22px;font-weight:700;color:var(--yc-text);
  display:block;margin-bottom:4px;
}

.yc-postscript__cta{
  margin-top:40px;text-align:center;
}
.yc-postscript__cta .yc-btn{padding:18px 36px;font-size:16px}

/* ===== Section: リード（共感） ===== */
.yc-lead__body{
  max-width:780px;margin:0 auto;
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  padding:48px 56px;position:relative;
  box-shadow:0 4px 24px rgba(15,15,15,.04);
}
.yc-lead__body::before{
  content:"";position:absolute;top:24px;bottom:24px;left:0;
  width:3px;background:var(--yc-red);border-radius:0 2px 2px 0;
}
.yc-lead__para{font-size:17px;line-height:2;color:var(--yc-text);margin-bottom:20px;font-weight:500}
.yc-lead__para:last-child{margin-bottom:0}
.yc-lead__para--strong{font-size:19px;font-weight:700}

/* ===== Section: 対談動画 ===== */
.yc-video__wrap{
  max-width:960px;margin:0 auto;
  border-radius:var(--yc-radius-lg);overflow:hidden;
  box-shadow:0 24px 64px rgba(15,15,15,.14);
  position:relative;aspect-ratio:16/9;background:#000;cursor:pointer;display:block;
}
.yc-video__wrap img{width:100%;height:100%;object-fit:cover}
.yc-video__play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:92px;height:92px;border-radius:50%;
  background:var(--yc-red);display:grid;place-items:center;
  box-shadow:0 10px 24px rgba(0,0,0,.4);transition:transform .2s;
}
.yc-video__wrap:hover .yc-video__play{transform:translate(-50%,-50%) scale(1.06)}
.yc-video__play svg{width:34px;height:34px;fill:#fff;margin-left:5px}
.yc-video__meta{max-width:960px;margin:24px auto 0;display:flex;gap:14px;align-items:center}
.yc-video__avatar{
  padding:6px 12px;border-radius:999px;
  background:var(--yc-red);
  display:inline-flex;align-items:center;flex-shrink:0;
  font-weight:700;color:#fff;font-size:12px;letter-spacing:.5px;
  white-space:nowrap;line-height:1.2;
}
.yc-video__title{font-size:17px;font-weight:700;margin-bottom:2px}
.yc-video__by{font-size:14px;color:var(--yc-muted)}
.yc-video__by span{margin-left:6px}
.yc-video__by span::before{content:"・";margin-right:6px;color:var(--yc-dim)}

/* ===== Section: 選ばれる理由（左右交互） ===== */
.yc-reason{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  max-width:1120px;margin:0 auto 96px;
}
.yc-reason:last-child{margin-bottom:0}
.yc-reason--reverse .yc-reason__body{order:2}
.yc-reason--reverse .yc-reason__media{order:1}
.yc-reason__media{
  position:relative;aspect-ratio:4/3;
  border-radius:var(--yc-radius-lg);overflow:hidden;
  box-shadow:0 16px 40px rgba(15,15,15,.1);
}
.yc-reason__media img{width:100%;height:100%;object-fit:cover}
.yc-reason__num{
  font-family:"Roboto",sans-serif;font-weight:900;font-size:64px;
  color:var(--yc-red);line-height:1;margin-bottom:16px;
  letter-spacing:-.03em;
}
.yc-reason__eyebrow{
  font-size:12px;font-weight:700;color:var(--yc-red);letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:8px;display:block;
}
.yc-reason__title{font-size:28px;font-weight:900;line-height:1.45;margin-bottom:18px;color:var(--yc-text)}
.yc-reason__desc{font-size:15px;line-height:2;color:var(--yc-muted);margin-bottom:0}

/* ===== Section: サービス4本柱 ===== */
.yc-services{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
  max-width:1120px;margin:0 auto;
}
.yc-service{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s,box-shadow .2s;
}
.yc-service:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(15,15,15,.1)}
.yc-service__thumb{
  position:relative;aspect-ratio:16/9;
  background:linear-gradient(135deg,#fff 0%,#f9f9f9 100%);
  display:grid;place-items:center;overflow:hidden;
  border-bottom:1px solid var(--yc-line);
}
.yc-service__thumb--image{display:block;padding:0}
.yc-service__thumb--image img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .4s cubic-bezier(.2,.8,.2,1);
}
.yc-service:hover .yc-service__thumb--image img{transform:scale(1.06)}
.yc-service__badge{
  position:absolute;top:12px;left:12px;
  background:var(--yc-red);color:#fff;
  padding:4px 12px;border-radius:4px;font-size:11px;font-weight:800;letter-spacing:.06em;
}
.yc-service__badge--new{background:var(--yc-blue)}
.yc-service__icon svg{width:80px;height:80px;opacity:.85}
.yc-service__body{padding:24px 28px;flex:1;display:flex;flex-direction:column}
.yc-service__title{font-size:20px;font-weight:800;line-height:1.4;margin-bottom:12px;color:var(--yc-text)}
.yc-service__desc{font-size:16px;line-height:1.9;color:var(--yc-muted);margin-bottom:20px;flex:1}
.yc-service__link{display:inline-flex;align-items:center;gap:6px;color:var(--yc-red);font-weight:700;font-size:16px;align-self:flex-start}
.yc-service__link:hover{color:var(--yc-red-hov)}
.yc-service__link svg{width:12px;height:12px;fill:currentColor}

/* ===== Section: サービスの流れ ===== */
.yc-flow{max-width:820px;margin:0 auto;position:relative}
.yc-flow::before{
  content:"";position:absolute;top:16px;bottom:16px;left:26px;width:2px;
  background:linear-gradient(180deg,rgba(255,0,0,.15) 0%,var(--yc-red) 50%,rgba(255,0,0,.15) 100%);
  border-radius:2px;
}
.yc-step{
  display:grid;grid-template-columns:56px 1fr;gap:28px;align-items:flex-start;margin-bottom:28px;
  opacity:0;transform:translateX(-24px);
  transition:opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1);
  will-change:transform,opacity;
}
.yc-step.is-in{opacity:1;transform:translateX(0)}
.yc-step:nth-child(1){transition-delay:0s}
.yc-step:nth-child(2){transition-delay:.08s}
.yc-step:nth-child(3){transition-delay:.16s}
.yc-step:nth-child(4){transition-delay:.24s}
.yc-step:nth-child(5){transition-delay:.32s}
.yc-step:nth-child(6){transition-delay:.40s}
.yc-step:nth-child(7){transition-delay:.48s}
.yc-step:last-child{margin-bottom:0}
.yc-step__num{
  width:54px;height:54px;border-radius:50%;
  background:var(--yc-red);color:#fff;display:grid;place-items:center;
  font-family:"Roboto",sans-serif;font-weight:900;font-size:20px;
  box-shadow:0 4px 12px rgba(255,0,0,.22);position:relative;z-index:1;
  transition:transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease, background .3s ease;
}
.yc-step__num::before{
  content:"";position:absolute;inset:0;border-radius:50%;
  border:2px solid var(--yc-red);opacity:0;
  transition:transform .4s ease, opacity .4s ease;
  pointer-events:none;
}
.yc-step:hover .yc-step__num{
  transform:scale(1.15) rotate(-8deg);
  background:#ff1a1a;
  box-shadow:0 8px 24px rgba(255,0,0,.45),0 0 0 8px rgba(255,0,0,.08);
}
.yc-step:hover .yc-step__num::before{
  transform:scale(1.45);opacity:.6;
}
.yc-step.is-in .yc-step__num{animation:yc-step-pop .6s cubic-bezier(.2,1.4,.3,1) both}
.yc-step:nth-child(1).is-in .yc-step__num{animation-delay:.1s}
.yc-step:nth-child(2).is-in .yc-step__num{animation-delay:.18s}
.yc-step:nth-child(3).is-in .yc-step__num{animation-delay:.26s}
.yc-step:nth-child(4).is-in .yc-step__num{animation-delay:.34s}
.yc-step:nth-child(5).is-in .yc-step__num{animation-delay:.42s}
.yc-step:nth-child(6).is-in .yc-step__num{animation-delay:.50s}
.yc-step:nth-child(7).is-in .yc-step__num{animation-delay:.58s}
@keyframes yc-step-pop{
  0%{transform:scale(.4) rotate(-30deg);opacity:0}
  60%{transform:scale(1.12) rotate(6deg)}
  100%{transform:scale(1) rotate(0);opacity:1}
}
.yc-step__card{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius);padding:20px 24px;
  transition:transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease, border-color .3s ease;
  position:relative;
}
.yc-step__card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--yc-red);border-radius:3px 0 0 3px;
  transform:scaleY(0);transform-origin:top;
  transition:transform .3s cubic-bezier(.2,.8,.2,1);
}
.yc-step:hover .yc-step__card{
  transform:translateX(6px);
  box-shadow:0 14px 32px rgba(15,15,15,.09);
  border-color:#ffb0b0;
}
.yc-step:hover .yc-step__card::before{transform:scaleY(1)}
.yc-step__title{
  font-size:17px;font-weight:700;margin-bottom:6px;color:var(--yc-text);
  transition:color .25s ease;
}
.yc-step:hover .yc-step__title{color:var(--yc-red)}
.yc-step__desc{font-size:16px;line-height:1.85;color:var(--yc-muted)}

/* ===== Scroll reveal（全セクション共通・CPU軽量） ===== */
.yc-reason,
.yc-case,
.yc-voice,
.yc-feature,
.yc-service,
.yc-stat-card,
.yc-industry__item{
  opacity:0;transform:translateY(24px);
  transition:opacity .75s cubic-bezier(.2,.8,.2,1), transform .75s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, border-color .25s ease;
  will-change:transform,opacity;
}
.yc-reason.is-in,
.yc-case.is-in,
.yc-voice.is-in,
.yc-feature.is-in,
.yc-service.is-in,
.yc-stat-card.is-in,
.yc-industry__item.is-in{opacity:1;transform:translateY(0)}

/* 左右交互（reason）はスライド方向をずらす */
.yc-reason:nth-child(odd){transform:translate(-32px,24px)}
.yc-reason:nth-child(even){transform:translate(32px,24px)}
.yc-reason.is-in{transform:translate(0,0)}

/* Stagger delay（兄弟ごとに順次） */
.yc-case:nth-child(2){transition-delay:.12s}
.yc-case:nth-child(3){transition-delay:.24s}
.yc-voice:nth-child(2){transition-delay:.12s}
.yc-voice:nth-child(3){transition-delay:.24s}
.yc-stat-card:nth-child(2){transition-delay:.12s}
.yc-stat-card:nth-child(3){transition-delay:.24s}
.yc-industry__item:nth-child(2){transition-delay:.06s}
.yc-industry__item:nth-child(3){transition-delay:.12s}
.yc-industry__item:nth-child(4){transition-delay:.18s}
.yc-industry__item:nth-child(5){transition-delay:.24s}
.yc-industry__item:nth-child(6){transition-delay:.30s}
.yc-service:nth-child(2){transition-delay:.10s}
.yc-service:nth-child(3){transition-delay:.20s}
.yc-service:nth-child(4){transition-delay:.30s}
.yc-feature:nth-child(2){transition-delay:.08s}
.yc-feature:nth-child(3){transition-delay:.16s}
.yc-feature:nth-child(4){transition-delay:.24s}
.yc-feature:nth-child(5){transition-delay:.32s}

/* reason 内の番号を is-in で pop アニメ */
.yc-reason .yc-reason__num{
  transition:transform .5s cubic-bezier(.2,1.4,.3,1);
}
.yc-reason.is-in .yc-reason__num{animation:yc-num-pop .7s cubic-bezier(.2,1.4,.3,1) both .15s}
@keyframes yc-num-pop{
  0%{transform:scale(.4) rotate(-16deg);opacity:.4}
  55%{transform:scale(1.15) rotate(6deg);opacity:1}
  100%{transform:scale(1) rotate(0)}
}

/* 事例・声・サービスカードのホバー拡大 */
.yc-case.is-in:hover{transform:translateY(-6px) scale(1.01);box-shadow:0 20px 44px rgba(15,15,15,.12)}
.yc-voice.is-in:hover{transform:translateY(-6px) scale(1.01);box-shadow:0 20px 44px rgba(15,15,15,.1)}
.yc-service.is-in:hover{transform:translateY(-6px) scale(1.015);box-shadow:0 22px 52px rgba(15,15,15,.12)}
.yc-feature.is-in:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(15,15,15,.1)}
.yc-stat-card.is-in:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 18px 40px rgba(15,15,15,.12)}
.yc-industry__item.is-in:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 14px 30px rgba(255,0,0,.12);border-color:var(--yc-red)}

/* ===== サブページ用 reveal（FAQ・gift・prose見出し等） ===== */
.yc-faq__item,
.yc-gift-card,
.yc-gift-reason,
.yc-prose h2,
.yc-prose h3,
.yc-prose table,
.yc-prose blockquote{
  opacity:0;transform:translateY(18px);
  transition:opacity .65s cubic-bezier(.2,.8,.2,1), transform .65s cubic-bezier(.2,.8,.2,1);
  will-change:transform,opacity;
}
.yc-faq__item.is-in,
.yc-gift-card.is-in,
.yc-gift-reason.is-in,
.yc-prose h2.is-in,
.yc-prose h3.is-in,
.yc-prose table.is-in,
.yc-prose blockquote.is-in{opacity:1;transform:translateY(0)}

/* stagger（兄弟で少し遅らせる） */
.yc-gift-card:nth-child(2){transition-delay:.12s}
.yc-gift-reason:nth-child(2){transition-delay:.10s}
.yc-gift-reason:nth-child(3){transition-delay:.20s}
.yc-faq__item:nth-child(2){transition-delay:.06s}
.yc-faq__item:nth-child(3){transition-delay:.12s}
.yc-faq__item:nth-child(4){transition-delay:.18s}
.yc-faq__item:nth-child(5){transition-delay:.24s}

/* FAQホバー効果 */
.yc-faq__item.is-in{transition:opacity .65s cubic-bezier(.2,.8,.2,1), transform .65s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, border-color .25s ease}
.yc-faq__item.is-in:hover{box-shadow:0 6px 18px rgba(15,15,15,.06);border-color:#ccc}

/* 各サブページのヒーロー（自動フェードイン・JS不要） */
.yc-page-hero h1{animation:yc-pagehero-in .8s cubic-bezier(.2,.8,.2,1) .15s both}
.yc-page-hero p{animation:yc-pagehero-in .8s cubic-bezier(.2,.8,.2,1) .3s both}
.yc-page-hero .yc-breadcrumb{animation:yc-pagehero-in .7s cubic-bezier(.2,.8,.2,1) 0s both}
@keyframes yc-pagehero-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* gift hero のタイトル/サブ */
.yc-gift-hero__title{animation:yc-pagehero-in .8s cubic-bezier(.2,.8,.2,1) .2s both}
.yc-gift-hero__sub{animation:yc-pagehero-in .8s cubic-bezier(.2,.8,.2,1) .35s both}
.yc-gift-hero__eyebrow{animation:yc-pagehero-in .7s cubic-bezier(.2,.8,.2,1) .1s both}

/* reduced motion 配慮 */
@media (prefers-reduced-motion:reduce){
  .yc-step,.yc-reason,.yc-case,.yc-voice,.yc-feature,.yc-service,.yc-stat-card,.yc-industry__item,
  .yc-faq__item,.yc-gift-card,.yc-gift-reason,.yc-prose h2,.yc-prose h3,.yc-prose table,.yc-prose blockquote,
  .yc-page-hero h1,.yc-page-hero p,.yc-page-hero .yc-breadcrumb,
  .yc-gift-hero__title,.yc-gift-hero__sub,.yc-gift-hero__eyebrow,
  .yc-page-banner,.yc-video-kind{
    opacity:1 !important;transform:none !important;animation:none !important;transition:none !important;
  }
}

/* ===== サブページ用の共通パーツ ===== */

/* ページヒーロー直下の大きなイメージバナー */
.yc-page-banner{
  max-width:1040px;margin:48px auto 0;padding:0 24px;
}
.yc-page-banner__inner{
  border-radius:var(--yc-radius-lg);overflow:hidden;aspect-ratio:16/9;
  box-shadow:0 20px 48px rgba(15,15,15,.08);
  animation:yc-pagehero-in .9s cubic-bezier(.2,.8,.2,1) .35s both;
}
.yc-page-banner__inner img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .7s cubic-bezier(.2,.8,.2,1);
}
.yc-page-banner__inner:hover img{transform:scale(1.03)}
@media (max-width:960px){.yc-page-banner{margin-top:28px;padding:0 20px}}

/* 動画種別カード（3カラム） */
.yc-video-kinds{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:28px 0 40px;
}
.yc-video-kind{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  opacity:0;transform:translateY(18px);
  transition:opacity .65s cubic-bezier(.2,.8,.2,1), transform .65s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, border-color .25s ease;
  will-change:transform,opacity;
}
.yc-video-kind.is-in{opacity:1;transform:translateY(0)}
.yc-video-kind:nth-child(2){transition-delay:.1s}
.yc-video-kind:nth-child(3){transition-delay:.2s}
.yc-video-kind.is-in:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(15,15,15,.1);border-color:#ffb0b0}
.yc-video-kind__img{aspect-ratio:16/9;overflow:hidden;background:#f0f0f0;border-bottom:1px solid var(--yc-line)}
.yc-video-kind__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.yc-video-kind:hover .yc-video-kind__img img{transform:scale(1.08)}
.yc-video-kind__body{padding:18px 22px 22px;flex:1;display:flex;flex-direction:column}
.yc-video-kind h3{font-size:16px;font-weight:800;margin-bottom:8px;color:var(--yc-text);line-height:1.5}
.yc-video-kind p{font-size:14px;color:var(--yc-muted);line-height:1.85;margin:0;flex:1}
@media (max-width:960px){
  .yc-video-kinds{grid-template-columns:1fr;gap:14px}
}

/* ===== Blog（一覧・記事共通） ===== */
.yc-blog__cats{
  display:flex;gap:8px;flex-wrap:wrap;margin-bottom:36px;justify-content:center;
}
.yc-blog__cat{
  padding:8px 18px;border:1px solid var(--yc-line);border-radius:999px;
  font-size:14px;font-weight:600;color:var(--yc-muted);background:#fff;
  transition:border-color .2s ease, color .2s ease, background .2s ease;
}
.yc-blog__cat:hover{border-color:var(--yc-red);color:var(--yc-red)}
.yc-blog__cat.is-active{background:var(--yc-red);color:#fff;border-color:var(--yc-red)}

.yc-blog__grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px;
}
.yc-blog__card{
  background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  opacity:0;transform:translateY(18px);
  transition:opacity .65s cubic-bezier(.2,.8,.2,1), transform .65s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, border-color .25s ease;
  will-change:transform,opacity;
}
.yc-blog__card.is-in{opacity:1;transform:translateY(0)}
.yc-blog__card:nth-child(2){transition-delay:.08s}
.yc-blog__card:nth-child(3){transition-delay:.16s}
.yc-blog__card:nth-child(4){transition-delay:.08s}
.yc-blog__card:nth-child(5){transition-delay:.16s}
.yc-blog__card:nth-child(6){transition-delay:.24s}
.yc-blog__card.is-in:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(15,15,15,.1);border-color:#ffb0b0}

.yc-blog__thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:#f0f0f0;border-bottom:1px solid var(--yc-line)}
.yc-blog__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.yc-blog__card:hover .yc-blog__thumb img{transform:scale(1.06)}

.yc-blog__body{padding:18px 22px 22px;flex:1;display:flex;flex-direction:column}
.yc-blog__meta{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--yc-muted);margin-bottom:10px}
.yc-blog__meta time{font-family:"Roboto",sans-serif}
.yc-blog__cat-tag{
  background:var(--yc-red-soft);color:var(--yc-red);
  padding:3px 10px;border-radius:4px;font-size:11px;font-weight:700;letter-spacing:.02em;
}
.yc-blog__title{font-size:15px;font-weight:800;line-height:1.55;margin-bottom:8px;color:var(--yc-text);flex:1}
.yc-blog__title a{color:inherit}
.yc-blog__title a:hover{color:var(--yc-red)}
.yc-blog__excerpt{font-size:14px;line-height:1.85;color:var(--yc-muted);margin:0}

.yc-blog__pager{
  display:flex;justify-content:center;align-items:center;gap:6px;margin-top:16px;
}
.yc-blog__pager a,.yc-blog__pager span{
  min-width:38px;height:38px;display:inline-grid;place-items:center;padding:0 12px;
  border:1px solid var(--yc-line);border-radius:8px;
  font-family:"Roboto",sans-serif;font-weight:700;font-size:14px;color:var(--yc-muted);
  transition:all .2s ease;
}
.yc-blog__pager a:hover{border-color:var(--yc-red);color:var(--yc-red)}
.yc-blog__pager a.is-active{background:var(--yc-red);color:#fff;border-color:var(--yc-red)}
.yc-blog__pager span{border:none}

/* Blog article page */
.yc-blog-article{max-width:900px;margin:0 auto}
.yc-blog-article__eye{
  margin:0 auto 40px;max-width:900px;aspect-ratio:16/9;overflow:hidden;border-radius:var(--yc-radius-lg);
  box-shadow:0 18px 44px rgba(15,15,15,.1);
}
.yc-blog-article__eye img{width:100%;height:100%;object-fit:cover}

.yc-blog-author{
  display:grid;grid-template-columns:80px 1fr;gap:20px;align-items:flex-start;
  background:var(--yc-bg-soft);border-radius:var(--yc-radius-lg);padding:24px 28px;
  margin:48px auto 0;max-width:760px;
}
.yc-blog-author__photo{width:80px;height:80px;border-radius:50%;object-fit:cover;border:3px solid #fff;box-shadow:0 4px 12px rgba(15,15,15,.1)}
.yc-blog-author__role{font-size:11px;color:var(--yc-muted);font-weight:700;letter-spacing:.08em;margin-bottom:4px}
.yc-blog-author__name{font-size:18px;font-weight:800;margin-bottom:10px;color:var(--yc-text)}
.yc-blog-author__bio{font-size:14px;color:var(--yc-muted);line-height:1.85;margin:0}

.yc-blog-related{margin:64px 0 0;max-width:1120px}
.yc-blog-related h2{font-size:20px;font-weight:900;margin-bottom:20px;color:var(--yc-text);text-align:center}
.yc-blog-related .yc-blog__grid{gap:18px}

@media (max-width:960px){
  .yc-blog__grid{grid-template-columns:1fr;gap:18px}
  .yc-blog__cats{gap:6px}
  .yc-blog__cat{font-size:12px;padding:6px 12px}
  .yc-blog-author{grid-template-columns:1fr;gap:12px;padding:20px 22px;text-align:center}
  .yc-blog-author__photo{margin:0 auto}
  .yc-blog-article__eye{margin-bottom:28px}
}

/* ===== Section: FAQ ===== */
.yc-faq{max-width:860px;margin:0 auto}
.yc-faq__item{background:#fff;border:1px solid var(--yc-line);border-radius:var(--yc-radius);margin-bottom:12px;overflow:hidden}
.yc-faq__item[open]{border-color:#ccc}
.yc-faq__q{
  list-style:none;cursor:pointer;padding:18px 24px;
  display:flex;align-items:center;gap:16px;
  font-weight:700;font-size:16px;color:var(--yc-text);line-height:1.5;
  transition:background .15s;
}
.yc-faq__q::-webkit-details-marker{display:none}
.yc-faq__q:hover{background:var(--yc-bg-soft)}
.yc-faq__q::before{
  content:"Q";flex-shrink:0;width:28px;height:28px;border-radius:6px;
  background:var(--yc-red);color:#fff;display:grid;place-items:center;
  font-family:"Roboto",sans-serif;font-weight:900;font-size:16px;
}
.yc-faq__q::after{
  content:"";margin-left:auto;width:12px;height:12px;flex-shrink:0;
  border-right:2px solid var(--yc-muted);border-bottom:2px solid var(--yc-muted);
  transform:rotate(45deg);transition:transform .2s;
}
.yc-faq__item[open] .yc-faq__q::after{transform:rotate(-135deg)}
.yc-faq__a{padding:0 24px 20px 68px;font-size:15px;line-height:1.9;color:var(--yc-muted)}
.yc-faq__more{text-align:center;margin-top:32px}
.yc-faq__more a{color:var(--yc-blue);font-weight:700;font-size:15px;border-bottom:1px solid currentColor;padding-bottom:2px}
.yc-faq__more a:hover{color:var(--yc-red)}

/* ===== Section: 特典CTA ===== */
.yc-gift{
  background:linear-gradient(180deg,#FFFBEB 0%,#FFE5EC 100%);
  padding:96px 24px;
}
.yc-gift__inner{
  max-width:820px;margin:0 auto;text-align:center;
  background:#fff;border-radius:24px;padding:56px 48px;
  box-shadow:0 20px 60px rgba(15,15,15,.08);
}
.yc-gift__title{font-size:32px;font-weight:900;line-height:1.45;margin-bottom:18px;color:var(--yc-text)}
.yc-gift__title em{font-style:normal;color:var(--yc-red)}
.yc-gift__sub{font-size:16px;color:var(--yc-muted);line-height:1.85;margin-bottom:32px}
.yc-gift__items{
  background:var(--yc-bg-soft);border-radius:var(--yc-radius);
  padding:24px 28px;margin-bottom:32px;text-align:left;display:grid;gap:14px;
}
.yc-gift__item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:flex-start;font-size:15px;line-height:1.6;color:var(--yc-text);font-weight:500}
.yc-gift__tag{background:var(--yc-red);color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:4px;flex-shrink:0;font-family:"Roboto",sans-serif}

/* 2カラムサムネカード（トップページ特典CTA用） */
.yc-gift__thumbs{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
  margin-bottom:32px;text-align:left;
}
.yc-gift__thumb{
  background:var(--yc-bg-soft);border-radius:var(--yc-radius-lg);overflow:hidden;
  border:1px solid var(--yc-line);
  transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s ease, border-color .35s ease;
}
.yc-gift__thumb:hover{
  transform:translateY(-4px) scale(1.015);
  box-shadow:0 18px 40px rgba(255,0,0,.15);
  border-color:var(--yc-red);
}
.yc-gift__thumb-img{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#000;
}
.yc-gift__thumb-img img{
  width:100%;height:100%;object-fit:cover;display:block;opacity:.75;
  transition:transform .5s cubic-bezier(.2,.8,.2,1), opacity .35s ease;
}
.yc-gift__thumb:hover .yc-gift__thumb-img img{transform:scale(1.08);opacity:.9}
.yc-gift__thumb-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:60px;height:60px;border-radius:50%;
  background:var(--yc-red);display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(0,0,0,.4);
  transition:transform .25s ease;
}
.yc-gift__thumb:hover .yc-gift__thumb-play{transform:translate(-50%,-50%) scale(1.15)}
.yc-gift__thumb-play svg{width:22px;height:22px;fill:#fff;margin-left:3px}
.yc-gift__thumb-lock{
  position:absolute;top:10px;right:10px;
  background:rgba(0,0,0,.75);color:#fff;
  padding:4px 10px;border-radius:999px;font-size:11px;font-weight:600;
  display:inline-flex;align-items:center;gap:4px;letter-spacing:.02em;
}
.yc-gift__thumb-label{
  position:absolute;top:10px;left:10px;
  background:var(--yc-red);color:#fff;
  padding:4px 10px;border-radius:4px;
  font-family:"Roboto",sans-serif;font-size:11px;font-weight:800;letter-spacing:.08em;
}
.yc-gift__thumb-body{padding:16px 20px 18px}
.yc-gift__thumb-title{
  font-size:15px;font-weight:800;line-height:1.55;color:var(--yc-text);
  margin-bottom:2px;
  transition:color .2s ease;
}
.yc-gift__thumb:hover .yc-gift__thumb-title{color:var(--yc-red)}
.yc-gift__thumb-time{font-size:12px;color:var(--yc-muted);margin-top:6px;display:flex;align-items:center;gap:5px}
.yc-gift__thumb-time svg{width:11px;height:11px;fill:var(--yc-muted)}

@media (max-width:960px){
  .yc-gift__thumbs{grid-template-columns:1fr;gap:14px;margin-bottom:22px}
  .yc-gift__thumb-title{font-size:16px}
  .yc-gift__thumb-play{width:48px;height:48px}
  .yc-gift__thumb-play svg{width:18px;height:18px}

  .yc-postscript__letter{padding:60px 22px 24px;margin-top:48px}
  .yc-postscript__letter::before{top:-48px;left:20px;width:96px;height:96px;border-width:4px}
}
.yc-gift__form{display:grid;gap:14px;max-width:480px;margin:0 auto}
.yc-gift__input{width:100%;padding:14px 18px;border:1.5px solid var(--yc-line);border-radius:var(--yc-radius);font-size:15px;transition:border-color .15s}
.yc-gift__input:focus{outline:none;border-color:var(--yc-red)}
.yc-gift__submit{
  padding:16px 24px;background:var(--yc-red);color:#fff;border-radius:999px;
  font-weight:700;font-size:16px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  transition:background .15s;
}
.yc-gift__submit:hover{background:var(--yc-red-hov)}
.yc-gift__submit svg{width:14px;height:14px;fill:#fff}
.yc-gift__note{font-size:12px;color:var(--yc-dim);margin-top:14px;line-height:1.6}
.yc-gift__note a{color:var(--yc-muted);text-decoration:underline}

/* ===== Footer ===== */
.yc-footer{background:#0f0f0f;color:#aaa;padding:64px 24px 32px}
.yc-footer__inner{max-width:1200px;margin:0 auto}
.yc-footer__top{display:grid;grid-template-columns:1.2fr 2fr;gap:48px;padding-bottom:40px;border-bottom:1px solid #2a2a2a}
.yc-footer__brand{display:flex;flex-direction:column;gap:14px}
.yc-footer__logo{height:40px}
.yc-footer__logo img{height:40px;width:auto}
.yc-footer__desc{font-size:14px;line-height:1.8;max-width:320px}
.yc-footer__addr{font-size:14px;line-height:1.8}
.yc-footer__addr a{color:#aaa}
.yc-footer__addr a:hover{color:#fff}
.yc-footer__social{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:6px 0 0}
.yc-footer__social a{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid #2a2a2a;border-radius:999px;color:#aaa;font-size:13px;line-height:1;text-decoration:none;transition:background-color .2s,color .2s,border-color .2s}
.yc-footer__social a:hover{background:#FF0000;border-color:#FF0000;color:#fff}
.yc-footer__social svg{display:block;flex-shrink:0}
.yc-footer__nav{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.yc-footer__col h4{font-size:12px;color:#fff;font-weight:700;letter-spacing:.08em;margin-bottom:16px;text-transform:uppercase}
.yc-footer__col ul{list-style:none;display:grid;gap:10px}
.yc-footer__col a{font-size:14px;color:#aaa}
.yc-footer__col a:hover{color:#fff}
.yc-footer__bottom{padding-top:32px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:12px;color:#666;flex-wrap:wrap}
.yc-footer__bottom a{color:#666}
.yc-footer__bottom a:hover{color:#aaa}

/* ===== Responsive ===== */
@media (max-width:960px){
  .yc-hero{padding:40px 20px 48px}
  .yc-hero__inner{grid-template-columns:1fr;gap:36px}
  .yc-hero__title{font-size:30px}
  .yc-hero__lead{font-size:18px}
  .yc-ribbon{font-size:14px;padding:12px 16px;margin-bottom:22px}

  .yc-metrics{padding:28px 20px}
  .yc-metrics__inner{grid-template-columns:1fr;gap:4px}
  .yc-metric{border-right:none;border-bottom:1px solid #2a2a2a;padding:16px 8px}
  .yc-metric:last-child{border-bottom:none}
  .yc-metric__num{font-size:32px}
  .yc-metric__num .yc-metric__unit{font-size:15px}

  .yc-cta-bar{padding:32px 20px}
  .yc-cta-bar__title{font-size:17px;margin-bottom:16px}

  .yc-section{padding:64px 20px}
  .yc-section__title{font-size:25px;line-height:1.45}
  .yc-section__sub{font-size:16px;margin-bottom:36px}

  .yc-marquee__item{width:180px}

  .yc-cases{grid-template-columns:1fr;gap:18px}
  .yc-case__body{padding:18px 20px}

  .yc-industry{grid-template-columns:repeat(3,1fr);gap:12px}
  .yc-industry__item{padding:16px 10px 14px}
  .yc-industry__photo{width:64px;height:64px;margin-bottom:10px}
  .yc-industry__num{font-size:16px}

  .yc-lead--speech{grid-template-columns:1fr;gap:24px}
  .yc-lead__person{position:static;order:-1}
  .yc-lead__avatar{width:160px;height:160px;border-width:4px}
  .yc-bubble{padding:18px 20px;font-size:15px;line-height:1.85}
  .yc-bubble--strong{font-size:16px}
  .yc-bubble::before,.yc-bubble::after{display:none}

  .yc-voices{grid-template-columns:1fr;gap:16px}
  .yc-voice{padding:28px 22px}

  .yc-postscript{padding:64px 20px}
  .yc-postscript::before{font-size:160px;top:-10px}
  .yc-postscript__title{font-size:22px}
  .yc-postscript__letter{padding:32px 22px 24px}
  .yc-postscript__letter::before{top:-26px;left:20px;width:52px;height:52px}
  .yc-postscript__letter p{font-size:15px;line-height:1.95}
  .yc-postscript__ps{padding:18px 20px}
  .yc-postscript__sign strong{font-size:18px}

  .yc-video__play{width:64px;height:64px}
  .yc-video__play svg{width:22px;height:22px}

  .yc-reason{grid-template-columns:1fr;gap:28px;margin-bottom:64px}
  .yc-reason--reverse .yc-reason__body{order:unset}
  .yc-reason--reverse .yc-reason__media{order:unset}
  .yc-reason__num{font-size:44px}
  .yc-reason__title{font-size:22px}

  .yc-services{grid-template-columns:1fr;gap:18px}
  .yc-service__body{padding:20px 22px}
  .yc-service__title{font-size:17px}

  .yc-flow::before{left:20px}
  .yc-step{grid-template-columns:44px 1fr;gap:16px;margin-bottom:20px}
  .yc-step__num{width:44px;height:44px;font-size:16px}
  .yc-step__card{padding:14px 18px}
  .yc-step__title{font-size:15px}
  .yc-step__desc{font-size:14px}

  .yc-faq__q{padding:14px 18px;font-size:16px;gap:12px}
  .yc-faq__q::before{width:24px;height:24px;font-size:12px}
  .yc-faq__a{padding:0 18px 18px 54px;font-size:16px}

  .yc-gift{padding:64px 20px}
  .yc-gift__inner{padding:32px 24px;border-radius:18px}
  .yc-gift__title{font-size:22px}
  .yc-gift__sub{font-size:16px;margin-bottom:24px}
  .yc-gift__items{padding:18px 20px;margin-bottom:24px}
  .yc-gift__item{font-size:16px;gap:10px}

  .yc-footer{padding:48px 20px 28px}
  .yc-footer__top{grid-template-columns:1fr;gap:36px}
  .yc-footer__nav{grid-template-columns:repeat(2,1fr);gap:24px}
}

/* ===== フッター内 無料特典ボタン（白背景・赤文字） ===== */
.yc-footer__cta-item{margin-top:8px !important;list-style:none !important}
.yc-footer__cta-btn{
  display:inline-flex !important;align-items:center;gap:8px;
  padding:10px 20px;
  background:#fff !important;color:var(--yc-red) !important;
  border-radius:999px;font-weight:800;font-size:14px;
  text-decoration:none !important;letter-spacing:.02em;
  transition:transform .15s, box-shadow .15s;
  border:2px solid #fff;
}
.yc-footer__cta-btn:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(255,255,255,.15);
  background:#fff !important;color:var(--yc-red) !important;
}
.yc-footer__cta-btn svg{width:10px;height:10px;fill:var(--yc-red)}

/* ===================================================================
 * サブページ共通スタイル（yc-page-hero / yc-breadcrumb / yc-prose / yc-contact-form）
 * =================================================================== */

/* ページヒーロー */
.yc-page-hero{padding:72px 24px 56px;background:var(--yc-bg-soft);text-align:center;border-bottom:1px solid var(--yc-line)}
.yc-page-hero h1{font-size:38px;font-weight:900;color:var(--yc-text);margin-bottom:14px;letter-spacing:-.01em;line-height:1.4}
.yc-page-hero p{font-size:16px;color:var(--yc-muted);max-width:720px;margin:0 auto;line-height:1.85}

/* パンくず */
.yc-breadcrumb{max-width:1200px;margin:0 auto 12px;font-size:12px;color:var(--yc-muted)}
.yc-breadcrumb a{color:var(--yc-muted);text-decoration:none}
.yc-breadcrumb a:hover{color:var(--yc-red)}
.yc-breadcrumb span{margin:0 6px;color:var(--yc-dim)}

/* バナー画像（サブページ最上部） */
.yc-page-banner__inner{max-width:1200px;margin:0 auto;overflow:hidden;border-radius:var(--yc-radius-lg,16px)}
.yc-page-banner__inner img{width:100%;height:auto;display:block}

/* 本文プロース */
.yc-prose{max-width:820px;margin:0 auto;font-size:16px;line-height:2;color:var(--yc-text)}
.yc-prose h2{font-size:24px;font-weight:800;margin:40px 0 16px;padding-bottom:10px;border-bottom:2px solid var(--yc-red);color:var(--yc-text)}
.yc-prose h2:first-child{margin-top:0}
.yc-prose h3{font-size:18px;font-weight:700;margin:28px 0 12px;color:var(--yc-text)}
.yc-prose p{margin-bottom:18px;color:var(--yc-muted)}
.yc-prose ul,.yc-prose ol{margin:0 0 20px 24px;color:var(--yc-muted)}
.yc-prose li{margin-bottom:8px}
.yc-prose table{width:100%;border-collapse:collapse;margin-bottom:20px;font-size:16px}
.yc-prose th,.yc-prose td{border:1px solid var(--yc-line);padding:12px 16px;text-align:left;vertical-align:top}
.yc-prose th{background:var(--yc-bg-soft);font-weight:700;color:var(--yc-text);width:200px}
.yc-prose strong{color:var(--yc-text)}
.yc-prose a{color:var(--yc-red);text-decoration:underline}
.yc-prose a:hover{color:var(--yc-red-hov,#cc0000)}

/* ボタン化されたリンクは yc-prose の赤下線ルールを上書き */
.yc-prose a.yc-btn{text-decoration:none}
.yc-prose a.yc-btn--primary{color:#fff}
.yc-prose a.yc-btn--primary:hover{color:#fff}
.yc-prose a.yc-btn--ghost{color:var(--yc-text)}
.yc-prose a.yc-btn--ghost:hover{color:var(--yc-text)}
.yc-single__body a.yc-btn{text-decoration:none}
.yc-single__body a.yc-btn--primary{color:#fff}
.yc-single__body a.yc-btn--primary:hover{color:#fff}
.yc-single__body a.yc-btn--ghost{color:var(--yc-text)}
.yc-single__body a.yc-btn--ghost:hover{color:var(--yc-text)}

/* お問い合わせフォーム */
.yc-contact-form{max-width:640px;margin:0 auto;padding:0 20px}
.yc-contact-form .yc-field{margin-bottom:24px}
.yc-contact-form label{display:block;font-weight:700;font-size:16px;margin-bottom:8px;color:var(--yc-text)}
.yc-contact-form .req{color:var(--yc-red);margin-left:4px}
.yc-contact-form input,
.yc-contact-form select,
.yc-contact-form textarea{
  width:100%;padding:12px 14px;font-size:15px;line-height:1.6;
  border:1px solid var(--yc-line);border-radius:10px;background:#fff;color:var(--yc-text);
  font-family:inherit;transition:border-color .15s;
}
.yc-contact-form input:focus,
.yc-contact-form select:focus,
.yc-contact-form textarea:focus{outline:none;border-color:var(--yc-red)}
.yc-contact-form textarea{min-height:160px;resize:vertical}
.yc-contact-submit{text-align:center;margin-top:8px}
.yc-contact-note{font-size:12px;color:var(--yc-dim);text-align:center;margin-top:18px;line-height:1.7}
.yc-contact-note a{color:var(--yc-muted);text-decoration:underline}

/* モバイル調整 */
@media (max-width:960px){
  .yc-page-hero{padding:48px 20px 36px}
  .yc-page-hero h1{font-size:26px}
  .yc-page-hero p{font-size:16px}
  .yc-page-banner{margin:0 12px}
  .yc-prose{font-size:15px;padding:0 20px}
  .yc-prose h2{font-size:20px}
  .yc-prose h3{font-size:17px}
  .yc-prose th{width:120px;font-size:14px}
  .yc-prose td{font-size:14px}
}

/* ===================================================================
 * ブログ（一覧・個別記事）— Arkhe風クリーン設計
 * =================================================================== */

/* ---- ブログアーカイブページ（/blog/・カテゴリ・タグ） ---- */
.yc-archive-main{padding:0 0 80px;background:#fafafa}
.yc-archive-main__inner{max-width:1200px;margin:0 auto;padding:48px 24px 0}

/* ---- ブログ一覧（index.php / archive.php） ---- */
.yc-blog-grid{
  max-width:1080px;margin:0 auto 48px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px 24px;
  padding:0;
}
.yc-blog-card__thumb--placeholder{
  background:linear-gradient(135deg,#f0f0f0,#e0e0e0);
  aspect-ratio:16/9;display:block;
}
.yc-blog-card{
  background:#fff;border:1px solid var(--yc-line);
  border-radius:12px;overflow:hidden;
  transition:transform .2s, box-shadow .2s, border-color .2s;
  display:flex;flex-direction:column;
}
.yc-blog-card:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 28px rgba(15,15,15,.08);
  border-color:#ddd;
}
.yc-blog-card__thumb{
  display:block;aspect-ratio:16/9;overflow:hidden;background:#f0f0f0;
}
.yc-blog-card__thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s;
}
.yc-blog-card:hover .yc-blog-card__thumb img{transform:scale(1.04)}
.yc-blog-card__body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column;gap:8px}
.yc-blog-card__meta{font-size:12px;color:var(--yc-dim);font-family:"Roboto",sans-serif;letter-spacing:.03em}
.yc-blog-card__title{
  font-size:16px;font-weight:700;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;
  overflow:hidden;margin:0;
}
.yc-blog-card__title a{color:var(--yc-text);text-decoration:none}
.yc-blog-card__title a:hover{color:var(--yc-red)}
.yc-blog-card__excerpt{
  font-size:14px;color:var(--yc-muted);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ページネーション */
.yc-pagination{max-width:1080px;margin:48px auto 80px;padding:0 24px;text-align:center;display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.yc-pagination .page-numbers{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:40px;padding:0 12px;
  border:1px solid var(--yc-line);border-radius:8px;
  font-size:16px;font-weight:600;color:var(--yc-text);
  background:#fff;text-decoration:none;transition:all .15s;
}
.yc-pagination .page-numbers:hover{background:var(--yc-bg-hover);border-color:#ccc}
.yc-pagination .page-numbers.current{background:var(--yc-red);color:#fff;border-color:var(--yc-red)}
.yc-pagination .page-numbers.dots{border:none;background:transparent}

/* ---- 個別記事レイアウト（2カラム: main + sidebar）---- */
.yc-blog-layout{
  padding:40px 0 80px;background:#fafafa;
}
.yc-blog-layout__inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1fr 300px;gap:48px;
  align-items:start;
}

/* ---- 個別記事メイン ---- */
.yc-single{
  background:#fff;border-radius:16px;
  padding:40px 48px;
  box-shadow:0 4px 20px rgba(15,15,15,.05);
  min-width:0; /* grid 内で overflow 防止 */
}
.yc-single__header{
  padding:0 0 28px;border-bottom:1px solid var(--yc-line);margin-bottom:32px;
}
.yc-single__header-inner{max-width:none}
.yc-single__meta{
  display:flex;align-items:center;gap:12px;
  font-size:12px;color:var(--yc-muted);margin-bottom:16px;
  font-family:"Roboto",sans-serif;
}
.yc-single__cat{
  display:inline-block;padding:4px 14px;border-radius:999px;
  background:var(--yc-red-soft);color:var(--yc-red);
  font-size:11px;font-weight:800;letter-spacing:.05em;text-decoration:none;
}
.yc-single__cat:hover{background:var(--yc-red);color:#fff}
.yc-single__title{
  font-size:30px;font-weight:900;line-height:1.55;color:var(--yc-text);
  letter-spacing:-.01em;margin:0;
}
.yc-single__thumb{margin:0 -48px 40px;overflow:hidden;border-radius:12px}
.yc-single__thumb img{width:100%;height:auto;display:block}
.yc-single__body{
  font-size:17px;line-height:2;color:var(--yc-text);
  margin-bottom:48px;
}
.yc-single__body > *:first-child{margin-top:0}

/* ===== 見出し H2 — 番号なし・赤線下＋背景グラデでぞろ屋風に強調 ===== */
.yc-single__body h2,
.yc-single__body .wp-block-heading[class*="h2"],
.yc-single__body h2.wp-block-heading{
  position:relative;
  font-size:26px;font-weight:900;color:var(--yc-text);
  margin:64px 0 24px;padding:14px 18px 14px 22px;
  background:linear-gradient(90deg, #fff5f5 0%, #ffffff 100%);
  border-left:6px solid var(--yc-red);
  border-radius:4px;
  line-height:1.55;
  letter-spacing:-.01em;
}
.yc-single__body h2::before{
  content:"";display:inline-block;
  width:6px;height:6px;border-radius:50%;background:var(--yc-red);
  margin-right:8px;vertical-align:middle;opacity:0;  /* 非表示（左ボーダーで強調）*/
}

/* ===== 見出し H3 — シンプルな赤縦線 ===== */
.yc-single__body h3,
.yc-single__body h3.wp-block-heading{
  font-size:20px;font-weight:800;color:var(--yc-text);
  margin:40px 0 16px;padding:4px 0 4px 16px;
  border-left:4px solid var(--yc-red);
  line-height:1.6;
}

/* ===== 見出し H4 ===== */
.yc-single__body h4,
.yc-single__body h4.wp-block-heading{
  font-size:17px;font-weight:800;color:var(--yc-text);
  margin:32px 0 12px;padding:0;
}

/* ===== 本文 ===== */
.yc-single__body p{margin-bottom:26px;color:var(--yc-text)}
/* リスト：YouTube赤の枠 + 薄グレー背景 + 二重丸ブレット */
.yc-single__body ul,.yc-single__body ol{
  list-style:none;
  margin:0 0 28px;
  padding:22px 28px 22px 30px;
  background:#F5F5F5;
  border:1px solid #FF0000;
  border-radius:12px;
  color:var(--yc-text);
}
.yc-single__body li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  line-height:1.95;
}
.yc-single__body li:last-child{margin-bottom:0}
.yc-single__body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.6em;
  width:8px;height:8px;
  background:#FF0000;
  border-radius:50%;
  box-shadow:0 0 0 2px #fff,0 0 0 4px #FF0000;
}
.yc-single__body ol{counter-reset:yc-li}
.yc-single__body ol li{counter-increment:yc-li}
.yc-single__body ol li::before{
  content:counter(yc-li);
  position:absolute;
  left:-4px;top:.4em;
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  background:#FF0000;color:#fff;
  border-radius:50%;
  font-family:"Roboto",sans-serif;font-size:11px;font-weight:800;
}
.yc-single__body ol li{padding-left:32px}
/* ネストされたリスト：枠を二重にしない */
.yc-single__body ul ul,.yc-single__body ul ol,
.yc-single__body ol ul,.yc-single__body ol ol{
  margin:10px 0 4px;padding:10px 16px 10px 18px;background:#fff;
  border:1px dashed #FF0000;border-radius:8px;
}
@media (max-width:560px){
  .yc-single__body ul,.yc-single__body ol{padding:18px 20px 18px 24px}
  .yc-single__body li{padding-left:22px;font-size:16px}
  .yc-single__body ol li{padding-left:30px}
}
.yc-single__body a{color:var(--yc-blue);text-decoration:underline;word-break:break-all}
.yc-single__body a:hover{color:var(--yc-red)}
.yc-single__body strong{color:var(--yc-text);font-weight:800}
.yc-single__body em{font-style:italic}

/* ===== Gutenberg カラーパレット（インライン文字色） ===== */
.has-yc-red-color{color:#FF0000}
.has-yc-red-deep-color{color:#CC0000}
.has-yc-yellow-color{color:#FFB800}
.has-yc-yellow-soft-color{color:#FFE98A}
.has-yc-text-color{color:#0F0F0F}
.has-yc-muted-color{color:#6B7280}
.has-yc-white-color{color:#FFFFFF}
.has-yc-red-background-color{background-color:#FF0000}
.has-yc-red-deep-background-color{background-color:#CC0000}
.has-yc-yellow-background-color{background-color:#FFB800}
.has-yc-yellow-soft-background-color{background-color:#FFE98A}
.has-yc-text-background-color{background-color:#0F0F0F}
.has-yc-muted-background-color{background-color:#6B7280}
.has-yc-white-background-color{background-color:#FFFFFF}

/* ===== 黄色マーカー（mark タグ or .yc-marker クラス）— サイト全体で統一 ===== */
/* WordPressのインラインカラー（has-inline-color クラス付き mark）は除外 */
mark:not(.has-inline-color),
.yc-marker,
span.is-style-marker{
  background:linear-gradient(transparent 65%, #ffe98a 65%);
  background-repeat:no-repeat;
  padding:0 2px;
  color:inherit;
}
/* インラインカラー指定の mark は色だけ適用（黄色マーカーをリセット） */
mark.has-inline-color{
  background:transparent;
  padding:0;
}
/* strong+mark の組み合わせ時は太字も効かせる（デフォルトはstrongの太字のみ） */
.yc-single__body mark:not(.has-inline-color){font-weight:inherit}

/* ===== 画像・figure ===== */
.yc-single__body img{
  max-width:100%;height:auto;
  border-radius:12px;
  margin:0;
  box-shadow:0 6px 20px rgba(15,15,15,.08);
}
.yc-single__body figure,
.yc-single__body .wp-block-image{
  margin:32px 0;
  text-align:center;
}
.yc-single__body figure img,
.yc-single__body .wp-block-image img{margin:0 auto}
.yc-single__body figcaption,
.yc-single__body .wp-element-caption{
  font-size:14px;color:var(--yc-muted);
  text-align:center;margin-top:12px;line-height:1.7;
}

/* ===== 目次（TOC）— スマート・ミニマルデザイン ===== */
/* 外側コンテナのみ赤線・背景・パディング */
.yc-single__body .table-of-contents,
.yc-single__body .wp-block-group.table-of-contents,
.yc-single__body .simpletoc{
  background:#fafafa;
  border-left:3px solid var(--yc-red);
  border-radius:0 6px 6px 0;
  padding:20px 24px 18px;
  margin:32px 0 40px;
}
/* AIOSEO が生成する内側 div は装飾なし（外側がTOCコンテナの場合） */
.yc-single__body .wp-block-aioseo-table-of-contents{
  background:transparent;
  border:none;
  padding:0;
  margin:0;
}
/* AIOSEO が単独で使われているケース（wp-block-group で囲まれていない場合）のみ装飾 */
.yc-single__body > .wp-block-aioseo-table-of-contents{
  background:#fafafa;
  border-left:3px solid var(--yc-red);
  border-radius:0 6px 6px 0;
  padding:20px 24px 18px;
  margin:32px 0 40px;
}
.yc-single__body .table-of-contents .content-title,
.yc-single__body .wp-block-group.table-of-contents .content-title,
.yc-single__body .simpletoc-title{
  font-size:14px;font-weight:800;color:var(--yc-text);
  margin:0 0 12px;padding:0;
  letter-spacing:.08em;display:flex;align-items:center;gap:8px;
}
.yc-single__body .table-of-contents .content-title::before,
.yc-single__body .wp-block-group.table-of-contents .content-title::before{
  content:"CONTENTS";
  font-family:"Roboto",sans-serif;font-size:10px;font-weight:700;
  color:var(--yc-red);letter-spacing:.15em;
  margin-right:4px;
}
.yc-single__body .table-of-contents ul,
.yc-single__body .wp-block-aioseo-table-of-contents ul,
.yc-single__body .simpletoc ul{
  margin:0;padding:0;list-style:none;
  counter-reset:toc-counter;
}
.yc-single__body .table-of-contents li,
.yc-single__body .wp-block-aioseo-table-of-contents li,
.yc-single__body .simpletoc li{
  position:relative;padding:5px 0 5px 26px;margin:0;
  font-size:13.5px;line-height:1.75;
  counter-increment:toc-counter;
}
.yc-single__body .table-of-contents li::before,
.yc-single__body .wp-block-aioseo-table-of-contents li::before,
.yc-single__body .simpletoc li::before{
  content:counter(toc-counter);
  position:absolute;left:0;top:7px;
  font-family:"Roboto",sans-serif;font-size:11px;font-weight:800;
  color:var(--yc-dim);
  letter-spacing:.03em;
  min-width:18px;
}
.yc-single__body .table-of-contents li:hover::before{color:var(--yc-red)}
.yc-single__body .table-of-contents a,
.yc-single__body .wp-block-aioseo-table-of-contents a,
.yc-single__body .simpletoc a{
  color:var(--yc-text);text-decoration:none;
  transition:color .15s;
  word-break:normal;font-weight:500;
}
.yc-single__body .table-of-contents a:hover,
.yc-single__body .wp-block-aioseo-table-of-contents a:hover,
.yc-single__body .simpletoc a:hover{color:var(--yc-red)}
/* 入れ子のサブ目次 */
.yc-single__body .table-of-contents ul ul{margin-top:4px;margin-left:12px}
.yc-single__body .table-of-contents ul ul li{font-size:12.5px}
.yc-single__body .table-of-contents ul ul li::before{color:var(--yc-muted)}

/* ===== 引用（blockquote）— ぞろ屋風の大きめカード ===== */
.yc-single__body blockquote,
.yc-single__body .wp-block-quote{
  position:relative;
  margin:32px 0;padding:28px 32px 28px 60px;
  background:var(--yc-bg-soft);
  border-left:5px solid var(--yc-red);
  line-height:2;color:var(--yc-text);
  border-radius:0 12px 12px 0;
}
.yc-single__body blockquote::before,
.yc-single__body .wp-block-quote::before{
  content:"”";position:absolute;left:16px;top:8px;
  font-size:56px;line-height:1;color:var(--yc-red);opacity:.3;
  font-family:Georgia,serif;font-weight:700;
}
.yc-single__body blockquote p:last-child,
.yc-single__body .wp-block-quote p:last-child{margin-bottom:0}
.yc-single__body blockquote cite,
.yc-single__body .wp-block-quote cite{
  display:block;margin-top:12px;font-size:14px;color:var(--yc-muted);font-style:normal;
}

/* ===== テーブル ===== */
.yc-single__body table,
.yc-single__body .wp-block-table table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:16px;
  border-radius:8px;overflow:hidden;
}
.yc-single__body th,
.yc-single__body td{border:1px solid var(--yc-line);padding:14px 16px;text-align:left;vertical-align:top}
.yc-single__body th{background:var(--yc-bg-soft);font-weight:800;color:var(--yc-text)}
.yc-single__body tr:hover td{background:#fafafa}

/* ===== ボタンブロック・Pull Quote 等 ===== */
.yc-single__body .wp-block-button{margin:24px 0;text-align:center}
.yc-single__body .wp-block-button__link{
  display:inline-block;padding:14px 32px;
  background:var(--yc-red);color:#fff;
  border-radius:999px;font-weight:800;font-size:15px;text-decoration:none;
  transition:background .15s;
}
.yc-single__body .wp-block-button__link:hover{background:var(--yc-red-hov);color:#fff}

.yc-single__body .wp-block-pullquote{
  margin:40px 0;padding:32px;text-align:center;
  border-top:3px solid var(--yc-red);border-bottom:3px solid var(--yc-red);
}
.yc-single__body .wp-block-pullquote p{
  font-size:22px;font-weight:700;line-height:1.75;color:var(--yc-text);
}

/* ===== セパレーター ===== */
.yc-single__body hr,
.yc-single__body .wp-block-separator{
  margin:40px 0;border:0;height:1px;
  background:linear-gradient(90deg, transparent, var(--yc-line), transparent);
}

/* ===== コード ===== */
.yc-single__body code{
  background:var(--yc-bg-soft);padding:2px 6px;border-radius:4px;
  font-family:"Roboto Mono","Courier New",monospace;font-size:.9em;
}
.yc-single__body pre,
.yc-single__body .wp-block-code{
  background:#0f0f0f;color:#f0f0f0;padding:20px;border-radius:8px;
  overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7;
}
.yc-single__body pre code,
.yc-single__body .wp-block-code code{background:transparent;padding:0;color:inherit}

/* ---- ぞろ屋風 著者プロフィールボックス ---- */
.yc-author-box{
  margin:56px 0 48px;padding:0;
  background:#fff;
  border:1px solid var(--yc-line);
  border-radius:16px;
  overflow:hidden;
  position:relative;
}
.yc-author-box::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg, var(--yc-red), #ff6464);
}
.yc-author-box__inner{
  display:grid;grid-template-columns:140px 1fr;gap:28px;
  padding:32px 32px 28px;align-items:start;
}
.yc-author-box__photo img{
  width:100%;height:auto;aspect-ratio:1;object-fit:cover;
  border-radius:50%;border:5px solid #fff;
  box-shadow:0 8px 24px rgba(15,15,15,.12);
  display:block;
}
.yc-author-box__body{min-width:0}
.yc-author-box__label{
  display:inline-block;padding:3px 12px;border-radius:999px;
  background:var(--yc-red-soft);color:var(--yc-red);
  font-size:11px;font-weight:800;letter-spacing:.08em;
  margin:0 0 10px;
}
.yc-author-box__name{
  font-size:22px;font-weight:900;color:var(--yc-text);margin:0 0 4px;
  line-height:1.4;
}
.yc-author-box__kana{
  font-size:14px;font-weight:500;color:var(--yc-muted);margin-left:8px;
}
.yc-author-box__title{
  font-size:14px;color:var(--yc-muted);margin:0 0 14px;font-weight:600;
}
.yc-author-box__bio{
  font-size:16px;line-height:1.9;color:var(--yc-text);margin:0 0 18px;
}
.yc-author-box__links{display:flex;gap:20px;flex-wrap:wrap}
.yc-author-box__link{
  font-size:14px;font-weight:700;color:var(--yc-red);text-decoration:none;
  border-bottom:1px solid transparent;transition:border-color .15s;
}
.yc-author-box__link:hover{border-bottom-color:var(--yc-red)}
.yc-author-box__link--alt{color:var(--yc-muted)}
.yc-author-box__link--alt:hover{color:var(--yc-red)}

/* 関連記事 */
.yc-related{margin:56px 0 0}
.yc-related__title{
  font-size:20px;font-weight:800;color:var(--yc-text);
  margin:0 0 20px;padding-bottom:10px;border-bottom:2px solid var(--yc-red);
}
.yc-related .yc-blog-grid{grid-template-columns:repeat(3,1fr);margin:0;padding:0;gap:20px}
.yc-related .yc-blog-card__body{padding:16px 18px}
.yc-related .yc-blog-card__title{font-size:16px;-webkit-line-clamp:2}

/* ---- サイドバー ---- */
.yc-sidebar{
  position:sticky;top:24px;
  display:flex;flex-direction:column;gap:24px;
  min-width:0;
}
.yc-sidebar__section{
  background:#fff;border:1px solid var(--yc-line);
  border-radius:12px;padding:22px 22px 20px;
}
.yc-sidebar__title{
  font-size:14px;font-weight:800;color:var(--yc-text);
  margin:0 0 16px;padding:0 0 10px;
  border-bottom:1px solid var(--yc-line);
  letter-spacing:.04em;position:relative;
}
.yc-sidebar__title::before{
  content:"";display:inline-block;
  width:3px;height:14px;background:var(--yc-red);
  vertical-align:middle;margin-right:10px;border-radius:2px;
}

/* 著者カード（サイドバー） */
.yc-author-card{text-align:center;padding:28px 22px 22px}
.yc-author-card__photo{width:100px;height:100px;margin:0 auto 14px}
.yc-author-card__photo img{
  width:100%;height:100%;object-fit:cover;border-radius:50%;
  border:4px solid #fff;box-shadow:0 6px 16px rgba(15,15,15,.12);
  display:block;
}
.yc-author-card__name{font-size:17px;font-weight:800;color:var(--yc-text);margin:0 0 4px}
.yc-author-card__title{font-size:12px;color:var(--yc-muted);margin:0 0 12px;font-weight:600}
.yc-author-card__bio{font-size:12px;line-height:1.85;color:var(--yc-text);margin:0 0 14px;text-align:left}
.yc-author-card__links{display:flex;justify-content:center;gap:16px}
.yc-author-card__link{font-size:12px;font-weight:700;color:var(--yc-red);text-decoration:none}
.yc-author-card__link:hover{text-decoration:underline}

/* 最新記事リスト */
.yc-sidebar__list{list-style:none;margin:0;padding:0}
.yc-sidebar__item{margin-bottom:16px}
.yc-sidebar__item:last-child{margin-bottom:0}
.yc-sidebar__link{
  display:grid;grid-template-columns:72px 1fr;gap:12px;
  text-decoration:none;color:inherit;
}
.yc-sidebar__thumb{
  width:72px;height:48px;border-radius:6px;overflow:hidden;
  background:#f0f0f0;
}
.yc-sidebar__thumb img{width:100%;height:100%;object-fit:cover;display:block}
.yc-sidebar__thumb--placeholder{background:linear-gradient(135deg,#f0f0f0,#e0e0e0)}
.yc-sidebar__body{min-width:0}
.yc-sidebar__date{
  font-size:11px;color:var(--yc-dim);font-family:"Roboto",sans-serif;
  letter-spacing:.03em;display:block;margin-bottom:2px;
}
.yc-sidebar__post-title{
  font-size:12px;line-height:1.55;color:var(--yc-text);margin:0;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.yc-sidebar__link:hover .yc-sidebar__post-title{color:var(--yc-red)}

/* カテゴリ */
.yc-sidebar__cats{list-style:none;margin:0;padding:0}
.yc-sidebar__cats li{border-bottom:1px dashed var(--yc-line);margin:0}
.yc-sidebar__cats li:last-child{border-bottom:none}
.yc-sidebar__cats a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 0;color:var(--yc-text);text-decoration:none;
  font-size:14px;font-weight:600;
}
.yc-sidebar__cats a:hover{color:var(--yc-red)}
.yc-sidebar__count{
  font-size:11px;color:var(--yc-muted);font-family:"Roboto",sans-serif;
  background:var(--yc-bg-soft);padding:2px 8px;border-radius:999px;
}

/* サイドバー 特典CTA */
.yc-sidebar-cta{
  padding:26px 24px 24px;text-align:center;
  background:linear-gradient(135deg,#fff 0%, #fff5f5 100%);
  border:1px solid #ffcccc;position:relative;overflow:hidden;
}
.yc-sidebar-cta__badge{
  display:inline-block;padding:3px 12px;border-radius:999px;
  background:var(--yc-red);color:#fff;
  font-size:10px;font-weight:800;letter-spacing:.12em;
  margin-bottom:10px;font-family:"Roboto",sans-serif;
}
.yc-sidebar-cta__title{
  font-size:15px;font-weight:900;line-height:1.55;color:var(--yc-text);
  margin:0 0 10px;
}
.yc-sidebar-cta__desc{
  font-size:11px;line-height:1.7;color:var(--yc-muted);margin:0 0 16px;
}
.yc-sidebar-cta__btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  width:100%;padding:12px 14px;
  background:var(--yc-red);color:#fff;
  border-radius:999px;font-size:14px;font-weight:800;text-decoration:none;
  transition:background .15s, transform .15s;
  box-shadow:0 4px 14px rgba(255,0,0,.18);
}
.yc-sidebar-cta__btn svg{width:10px;height:10px}
.yc-sidebar-cta__btn:hover{background:var(--yc-red-hov);transform:translateY(-1px);color:#fff}

/* モバイル（ブログ） */
@media (max-width:1100px){
  .yc-blog-layout__inner{grid-template-columns:1fr;gap:32px}
  .yc-sidebar{position:static}
}
@media (max-width:960px){
  .yc-blog-grid{grid-template-columns:repeat(2,1fr);gap:24px 16px;padding:0 20px}
  .yc-related .yc-blog-grid{grid-template-columns:1fr}
  .yc-blog-layout{padding:24px 0 60px}
  .yc-blog-layout__inner{padding:0 16px}
  .yc-single{padding:28px 24px;border-radius:12px}
  .yc-single__header{padding:0 0 20px;margin-bottom:24px}
  .yc-single__title{font-size:22px;line-height:1.55}
  .yc-single__thumb{margin:0 -24px 28px;border-radius:0}
  .yc-single__body{font-size:16px;margin-bottom:40px}
  .yc-single__body h2{font-size:20px;margin:44px 0 16px;padding:12px 14px 12px 18px}
  .yc-single__body h3{font-size:17px;margin:30px 0 12px;padding-left:12px}

  .yc-author-box__inner{grid-template-columns:80px 1fr;gap:20px;padding:24px 20px 22px}
  .yc-author-box__name{font-size:18px}
  .yc-author-box__kana{display:block;margin-left:0;margin-top:2px}
  .yc-author-box__bio{font-size:14px}

  .yc-sidebar{gap:20px}
  .yc-sidebar__section{padding:18px 18px 16px}
}
@media (max-width:640px){
  .yc-blog-grid{grid-template-columns:1fr}
  .yc-single{padding:22px 18px}
  .yc-single__thumb{margin:0 -18px 24px}
  .yc-author-box__inner{grid-template-columns:1fr;text-align:center}
  .yc-author-box__photo{max-width:100px;margin:0 auto}
  .yc-author-box__links{justify-content:center}
}

/* ===================================================================
 * Fluent Forms — ユチュブる デザインに統合するスタイル
 * =================================================================== */

/* FF全体コンテナ */
.fluentform{max-width:640px;margin:0 auto;padding:0 20px}
.fluentform .ff-el-group{margin-bottom:24px}

/* ラベル */
.fluentform .ff-el-input--label label{
  display:block;font-weight:700;font-size:16px;margin-bottom:8px;
  color:var(--yc-text);letter-spacing:.01em;
}
.fluentform .ff-el-input--label label .ff-el-is-required{color:var(--yc-red);margin-left:4px}

/* インプット / テキストエリア / セレクト */
.fluentform input[type="text"],
.fluentform input[type="email"],
.fluentform input[type="tel"],
.fluentform input[type="url"],
.fluentform input[type="number"],
.fluentform select,
.fluentform textarea{
  width:100%;padding:12px 14px;font-size:15px;line-height:1.6;
  border:1px solid var(--yc-line);border-radius:10px;background:#fff;color:var(--yc-text);
  font-family:inherit;transition:border-color .15s, box-shadow .15s;
  box-shadow:none;
}
.fluentform input:focus,
.fluentform select:focus,
.fluentform textarea:focus{
  outline:none;border-color:var(--yc-red);
  box-shadow:0 0 0 3px rgba(255,0,0,.08);
}
.fluentform textarea{min-height:160px;resize:vertical}
.fluentform select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23606060' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}

/* エラー表示 */
.fluentform .error{color:var(--yc-red);font-size:14px;margin-top:6px}
.fluentform .ff-el-is-error input,
.fluentform .ff-el-is-error textarea,
.fluentform .ff-el-is-error select{border-color:var(--yc-red)}

/* Name フィールド（ファーストネーム単体のとき用） */
.fluentform .ff-name-field-wrapper{display:block}

/* サブミットボタン */
.fluentform .ff-btn-submit,
.fluentform button[type="submit"]{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;min-width:200px;
  background:var(--yc-red);color:#fff;
  font-size:15px;font-weight:800;letter-spacing:.02em;
  border:none;border-radius:999px;cursor:pointer;
  transition:background .15s, transform .15s;
  box-shadow:0 4px 14px rgba(255,0,0,.18);
}
.fluentform .ff-btn-submit:hover,
.fluentform button[type="submit"]:hover{background:var(--yc-red-hov);transform:translateY(-1px)}

/* フォームのセンタリング/align */
.fluentform .ff_submit_btn_wrapper{text-align:center;margin-top:8px}

/* 成功/失敗メッセージ */
.fluentform .ff-message-success{
  background:#e8f5e9;border:1px solid #81c784;color:#2e7d32;
  padding:16px 20px;border-radius:10px;font-size:16px;line-height:1.8;
}
.fluentform .ff-message-error{
  background:#ffebee;border:1px solid #ef9a9a;color:#c62828;
  padding:16px 20px;border-radius:10px;font-size:16px;line-height:1.8;
}

/* gift ページ内のフォーム（専用ラッパー内） */
.yc-gift-form-box .fluentform{max-width:none;padding:0}

/* ===================================================================
 * MailPoet Form — 特典DLフォーム用 / Fluent Forms と同じ見た目に統合
 * =================================================================== */

.mailpoet_form{max-width:none;padding:0;font-family:inherit}
.mailpoet_form .mailpoet_paragraph{margin-bottom:20px}

/* ラベル */
.mailpoet_form label{
  display:block;font-weight:700;font-size:16px;margin-bottom:8px;
  color:var(--yc-text);letter-spacing:.01em;
}
.mailpoet_form label .mailpoet_required{color:var(--yc-red);margin-left:4px}

/* インプット */
.mailpoet_form input[type="text"],
.mailpoet_form input[type="email"],
.mailpoet_form input[type="number"],
.mailpoet_form input[type="tel"],
.mailpoet_form input[type="url"],
.mailpoet_form textarea,
.mailpoet_form select{
  width:100%;padding:12px 14px;font-size:15px;line-height:1.6;
  border:1px solid var(--yc-line);border-radius:10px;background:#fff;color:var(--yc-text);
  font-family:inherit;transition:border-color .15s, box-shadow .15s;
  box-shadow:none;
}
.mailpoet_form input:focus,
.mailpoet_form textarea:focus,
.mailpoet_form select:focus{
  outline:none;border-color:var(--yc-red);
  box-shadow:0 0 0 3px rgba(255,0,0,.08);
}

/* 送信ボタン */
.mailpoet_form input[type="submit"],
.mailpoet_form .mailpoet_submit{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;min-width:240px;
  background:var(--yc-red);color:#fff;
  font-size:15px;font-weight:800;letter-spacing:.02em;
  border:none;border-radius:999px;cursor:pointer;
  transition:background .15s, transform .15s;
  box-shadow:0 4px 14px rgba(255,0,0,.18);
  width:auto;
}
.mailpoet_form input[type="submit"]:hover,
.mailpoet_form .mailpoet_submit:hover{
  background:var(--yc-red-hov);transform:translateY(-1px);
}

/* 送信ボタンを中央寄せ */
.mailpoet_form .mailpoet_paragraph.last{text-align:center;margin-top:8px}
.mailpoet_form .mailpoet_paragraph.last .mailpoet_submit{margin:0 auto}

/* チェックボックス（GDPR等） */
.mailpoet_form .mailpoet_paragraph.mailpoet_checkbox_label,
.mailpoet_form .mailpoet_paragraph.mailpoet_radio_label{
  display:flex;align-items:center;gap:8px;font-weight:400;color:var(--yc-muted);
  font-size:14px;
}
.mailpoet_form input[type="checkbox"],
.mailpoet_form input[type="radio"]{
  width:auto;padding:0;margin:0;
}

/* 成功／エラーメッセージ */
.mailpoet_validate_success,
.mailpoet_message p{
  padding:16px 20px;border-radius:10px;font-size:16px;line-height:1.8;
  background:#e8f5e9;border:1px solid #81c784;color:#2e7d32;margin:12px 0 0;
}
.mailpoet_validate_error,
.mailpoet_error{
  padding:12px 16px;border-radius:8px;font-size:14px;line-height:1.7;
  background:#ffebee;border:1px solid #ef9a9a;color:#c62828;margin-top:6px;
}

/* gift-form-box 内の MailPoet を合わせる */
.yc-gift-form-box .mailpoet_form{max-width:none;padding:0}


/* ============================================================
 * 全体フォントサイズ +1px 調整（2026-04-29 追加）
 *   - body の基準サイズを 16px → 17px に
 *   - 見出し（h1〜h6）はサイズ変更しない（明示的に元のpx指定で固定）
 *   - その他の要素は CSS の継承で自動的に +1px 反映される
 *   - すでに固有の font-size を持つクラスは元のまま動作（影響なし）
 *   - 結果として「見出し以外の本文・リスト・リンク・ボタン等」が
 *     1px 大きくなる
 * ============================================================ */
body{font-size:17px;}

/* 見出しは元のpx指定で動いているため明示的な保護は不要だが、
   念のため CSS変数経由で指定されている場合の影響を避けるため
   「サイズ未指定の見出し」のデフォルトを固定しておく */
h1:not([class]){font-size:32px;}
h2:not([class]){font-size:26px;}
h3:not([class]){font-size:20px;}
h4:not([class]){font-size:17px;}
h5:not([class]){font-size:15px;}
h6:not([class]){font-size:16px;}
.yc-gift-form-box .mailpoet_form input[type="submit"]{width:100%;min-width:0}