@charset "UTF-8";
/* ============================================================================
   duyun.css — DUYUN 司 専用ページ / dedicated brand-world page
   ----------------------------------------------------------------------------
   styles.css → styles-refine.css の後に読み込む前提。
   色・フォント変数（--color-navy / --color-gold / --shu / --display）は
   既存ファイルのものをそのまま継承する。
   ============================================================================ */

/* ---------- Header（簡易版） ---------- */
.duyun-page-header{ justify-content: space-between; gap: 16px; }

.brand-duyun__mark{
  display: block;
  height: 40px;
  width: 40px;
  max-height: 100%;
  flex-shrink: 0;
  object-fit: contain;
}

.duyun-page-header__right{
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.duyun-back{
  min-height: 40px;
  padding: 0 16px;
  font-size: .86rem;
  white-space: nowrap;
}

/* ---------- Hero ---------- */
.duyun-hero{
  position: relative;
  min-height: 56svh;
  padding-top: calc(var(--header-height) + clamp(48px, 7vw, 88px));
  display: flex;
  align-items: center;
  text-align: center;
  background:
    radial-gradient(circle at 85% 18%, rgba(169,133,76,.13), transparent 36%),
    radial-gradient(circle at 12% 84%, rgba(77,125,138,.11), transparent 32%),
    var(--color-white);
}

.duyun-hero__mark{
  display: block;
  position: absolute;
  left: clamp(24px, 6vw, 96px);
  top: 50%;
  transform: translateY(-50%);
  height: clamp(180px, 20vw, 300px);
  width: clamp(180px, 20vw, 300px);
}

@media (max-width: 1200px){
  .duyun-hero__mark{ display: none; }
}

.duyun-hero__inner{ max-width: 820px; margin: 0 auto; }

.duyun-hero__title-row{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 22px;
}

.duyun-hero__title{
  margin-bottom: 0;
  color: var(--color-navy);
  font-family: var(--display);
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  letter-spacing: .02em;
}

.duyun-hero__free-tag{
  display: inline-flex;
  flex: none;
  align-items: center;
  padding: 7px 18px;
  border: 1px solid rgba(169,133,76,.5);
  border-radius: 999px;
  background: rgba(169,133,76,.1);
  color: var(--color-navy);
  font-family: "Noto Sans JP", sans-serif;
  font-size: .86rem;
  font-weight: 700;
  letter-spacing: .03em;
  white-space: nowrap;
}

.duyun-hero__title small{
  margin-left: 10px;
  color: var(--color-muted);
  font-family: "Noto Sans JP", sans-serif;
  font-size: .4em;
  font-weight: 500;
}

.duyun-hero__tagline{
  margin-bottom: 14px;
  color: var(--color-navy);
  font-family: var(--display);
  font-size: clamp(1.22rem, 2.4vw, 1.55rem);
  font-weight: 700;
  line-height: 1.7;
}

.duyun-hero__lead{ color: var(--color-muted); font-size: 1.02rem; }

/* ---------- Notice bar（無料・自主開発の告知） ---------- */
.duyun-notice{ padding: 0 24px clamp(48px, 6vw, 68px); }

.duyun-notice__inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 18px 28px;
  border: 1px solid rgba(169,133,76,.34);
  border-radius: var(--radius);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.duyun-notice__tag{
  display: inline-flex;
  flex: none;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-navy);
  color: var(--color-white);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .03em;
  white-space: nowrap;
}

.duyun-notice__inner p{ margin: 0; color: var(--color-muted); font-size: .96rem; }

@media (max-width: 680px){
  .duyun-notice{ padding: 0 18px 48px; }
}

/* ---------- Concept ---------- */
.duyun-concept{ text-align: center; }

.duyun-concept .section-heading{ margin-right: auto; margin-left: auto; }

.duyun-concept__body{
  max-width: 740px;
  margin: 0 auto clamp(30px, 4vw, 42px);
  text-align: left;
}

.duyun-concept__body p{ margin-bottom: 14px; color: #334155; font-size: 1.02rem; }
.duyun-concept__body p:last-child{ margin-bottom: 0; }

.duyun-tags{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.duyun-tags li{
  padding: 8px 18px;
  border: 1px solid rgba(169,133,76,.38);
  border-radius: 999px;
  background: rgba(255,255,255,.62);
  color: var(--color-navy);
  font-size: .86rem;
  font-weight: 700;
}

/* ---------- Structure tree ---------- */
.duyun-structure__rule{
  max-width: 740px;
  margin: 0 auto clamp(40px, 5vw, 52px);
  color: var(--color-muted);
  line-height: 1.9;
  text-align: center;
}

.duyun-tree{ display: flex; flex-direction: column; align-items: center; }

.duyun-tree__root{
  position: relative;
  padding: 20px 32px;
  border: 1px solid rgba(185,151,91,.5);
  border-radius: var(--radius);
  background: var(--color-navy);
  color: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow-card);
}

.duyun-tree__root strong{ display: block; font-family: var(--display); font-size: 1.32rem; }
.duyun-tree__root span{ display: block; margin-top: 4px; color: rgba(255,255,255,.68); font-size: .78rem; }

.duyun-tree__hub{
  display: flex;
  flex-direction: column;
  align-items: stretch;
  max-width: 100%;
}

.duyun-tree__connectors{
  display: block;
  width: 100%;
  height: 56px;
}

.duyun-tree__connectors path{
  fill: none;
  stroke: var(--color-line);
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
}

.duyun-tree__branches{
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.duyun-tree__branch{ position: relative; display: flex; justify-content: center; }

.duyun-tree__node{
  min-width: 180px;
  padding: 18px 22px;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-gold);
  border-radius: var(--radius);
  background: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow-card);
}

.duyun-tree__node strong{ display: block; color: var(--color-navy); font-family: var(--display); font-size: 1.05rem; }
.duyun-tree__node strong small{
  margin-left: 4px;
  color: var(--color-muted);
  font-family: "Noto Sans JP", sans-serif;
  font-size: .66em;
  font-weight: 500;
}
.duyun-tree__node span{ display: block; margin-top: 6px; color: var(--color-muted); font-size: .8rem; }

.duyun-tree__node--dev{
  border-top-color: rgba(169,133,76,.5);
  border-top-style: dashed;
  opacity: .74;
}

.duyun-tree__node--dev .duyun-tree__node-tag{
  display: inline-flex;
  margin: 0 0 8px;
  padding: 2px 10px;
  border: 1px solid rgba(169,133,76,.5);
  border-radius: 999px;
  background: rgba(169,133,76,.1);
  color: var(--color-navy);
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .02em;
}

@media (max-width: 680px){
  .duyun-tree__connectors{ display: none; }
  .duyun-tree__branches{ flex-direction: column; gap: 20px; margin-top: 24px; }
  .duyun-tree__branch::before{
    position: absolute;
    top: -14px;
    left: 50%;
    width: 1px;
    height: 14px;
    background: var(--color-line);
    content: "";
    transform: translateX(-50%);
  }
}

/* ---------- Product detail ---------- */
.duyun-detail{ border-top: 1px solid var(--color-line); }

.duyun-detail__grid{
  max-width: 760px;
  margin: 0 auto;
}

.duyun-detail__meta{ display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.duyun-detail__meta .duyun-detail__label{ margin-bottom: 0; }

.duyun-detail__badge{
  display: inline-flex;
  padding: 3px 11px;
  border: 1px solid var(--color-gold);
  border-radius: 999px;
  background: rgba(169,133,76,.08);
  color: var(--color-navy);
  font-size: .72rem;
  font-weight: 700;
}

.duyun-detail__label{ margin-bottom: 10px; color: var(--color-cyan); font-size: .84rem; font-weight: 700; }

.duyun-detail__title{
  margin-bottom: 10px;
  color: var(--color-navy);
  font-family: var(--display);
  font-size: clamp(1.55rem, 2.6vw, 2.05rem);
}

.duyun-detail__title-link{
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}
.duyun-detail__title-link:hover{ color: var(--color-gold); }

.duyun-detail__more{ margin-top: 22px; }

.duyun-detail__title small{
  margin-left: 8px;
  color: var(--color-muted);
  font-family: "Noto Sans JP", sans-serif;
  font-size: .48em;
  font-weight: 500;
}

.duyun-detail__subtitle{ margin-bottom: 16px; color: var(--color-navy); font-size: 1.05rem; font-weight: 700; }

.duyun-detail__symbol{
  margin-bottom: 16px;
  padding-left: 16px;
  border-left: 3px solid var(--color-gold);
  color: var(--color-muted);
}

.duyun-detail__body{ margin-bottom: 18px; color: var(--color-muted); }

.duyun-detail__list{ display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.duyun-detail__list li{
  padding: 8px 16px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: #fbfcfd;
  color: #334155;
  font-size: .86rem;
}

.duyun-detail__platforms{
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
}

.duyun-detail__platforms-label{
  display: block;
  margin-bottom: 10px;
  color: var(--color-navy);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .03em;
}

.duyun-detail__platform-list{ display: flex; flex-wrap: wrap; gap: 10px; }

.duyun-platform{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: #fbfcfd;
  color: var(--color-navy);
  font-size: .86rem;
  font-weight: 600;
  transition: border-color .2s ease, transform .2s ease;
}

.duyun-platform:hover{ border-color: var(--color-gold); transform: translateY(-2px); }

.duyun-platform--soon{
  cursor: default;
  opacity: .55;
}
.duyun-platform--soon:hover{ border-color: var(--color-line); transform: none; }

.duyun-platform svg{
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- About / manifesto ---------- */
.duyun-about{ background: var(--color-navy); color: var(--color-white); }
.duyun-about__inner{ max-width: 800px; margin: 0 auto; text-align: center; }
.duyun-about blockquote{ margin: 0; padding: 0; }
.duyun-about blockquote p{
  margin-bottom: 14px;
  color: rgba(255,255,255,.92);
  font-family: var(--display);
  font-size: clamp(1.1rem, 2vw, 1.32rem);
  line-height: 1.95;
}
.duyun-about blockquote p:last-child{ margin-bottom: 0; }

/* ---------- CTA ---------- */
.duyun-cta{ text-align: center; }
.duyun-cta .section-heading{ margin-right: auto; margin-left: auto; }
.duyun-cta__body{ max-width: 640px; margin: 0 auto 26px; color: var(--color-muted); }

@media (max-width: 680px){
  .duyun-page-header__right{ gap: 10px; }
  .duyun-back{ padding: 0 12px; font-size: .8rem; }
}