/* PreDeto コラム共通スタイル */
@font-face {
  font-family: "PreDeto Numeric Mincho";
  src: local("Yu Mincho"), local("YuMincho"), local("Noto Serif JP");
  font-display: swap;
  unicode-range: U+0030-0039, U+FF10-FF19;
}

:root {
  --blue: #1cabb1;
  --blue-strong: #0f969c;
  --blue-pale: #e5f7f6;
  --blue-wash: #f3fbfa;
  --ink: #102e30;
  --ink-soft: #526f70;
  --line: #c9dddd;
  --white: #fff;
  --black: #111b1c;
  --max: 860px;
  --serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: "PreDeto Numeric Mincho", "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .035em;
  overflow-x: hidden;
}

img {
  display: block;
  width: 100%;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
p,
figure {
  margin-top: 0;
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  height: 72px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.brand-logo-beige {
  display: block;
  width: 148px;
  height: auto;
  object-fit: contain;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 0 16px;
  color: var(--white);
  background: var(--blue);
  font-size: 12px;
  font-weight: 700;
}

.header-cta::after {
  content: "↗";
}

/* ページ見出し */
.page-head {
  padding: clamp(56px, 8vw, 96px) 0 clamp(36px, 5vw, 60px);
}

.label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--blue-strong);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .23em;
  text-transform: uppercase;
}

.label::before {
  content: "";
  flex: 0 0 38px;
  height: 2px;
  background: currentColor;
}

.page-title {
  margin-bottom: 18px;
  font-family: var(--serif);
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: .08em;
}

.page-lead {
  max-width: 620px;
  color: var(--ink-soft);
}

/* 記事一覧 */
.article-list {
  display: grid;
  gap: 22px;
  padding-bottom: clamp(80px, 10vw, 130px);
}

.article-card {
  display: block;
  padding: 30px 28px;
  border: 1px solid var(--line);
  background: var(--white);
  transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}

.article-card:hover {
  border-color: var(--blue);
  box-shadow: 0 14px 34px rgba(16, 46, 48, .09);
  transform: translateY(-2px);
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
}

.article-card-meta time {
  color: var(--ink-soft);
}

.article-tag {
  padding: 3px 10px;
  color: var(--blue-strong);
  background: var(--blue-pale);
  letter-spacing: .12em;
}

.article-card h2 {
  margin-bottom: 10px;
  font-family: var(--serif);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 500;
  line-height: 1.65;
}

.article-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 13.5px;
}

.article-card-more {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--blue);
  color: var(--blue-strong);
  font-size: 12px;
  font-weight: 700;
}

/* 記事本文 */
.article {
  padding-bottom: clamp(70px, 9vw, 110px);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
}

.article-meta time {
  color: var(--ink-soft);
}

.article h1 {
  margin-bottom: 30px;
  font-family: var(--serif);
  font-size: clamp(27px, 4vw, 42px);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .06em;
}

.article-body h2 {
  margin: 54px 0 20px;
  padding: 14px 18px;
  background: var(--blue-wash);
  border-left: 4px solid var(--blue);
  font-family: var(--serif);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 500;
  line-height: 1.6;
}

.article-body h3 {
  margin: 38px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blue-pale);
  font-family: var(--serif);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
}

.article-body p {
  margin-bottom: 24px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body figure {
  margin: 34px 0;
}

.article-body figcaption {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: center;
}

.article-note {
  margin: 30px 0;
  padding: 20px 22px;
  background: var(--blue-wash);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14px;
}

/* 記事内CTA */
.article-cta {
  margin: 56px 0 0;
  padding: 36px 30px;
  color: var(--white);
  background: var(--blue);
  text-align: center;
}

.article-cta p {
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}

.article-cta strong {
  display: block;
  margin-bottom: 20px;
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  line-height: 1.6;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 54px;
  padding: 0 28px;
  border: 2px solid var(--white);
  color: var(--blue-strong);
  background: var(--white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  transition: color .22s ease, background .22s ease, transform .22s ease;
}

.button::after {
  content: "→";
  font-size: 17px;
}

.button:hover {
  color: var(--white);
  background: transparent;
  transform: translateY(-2px);
}

.back-link {
  display: inline-block;
  margin-top: 44px;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--blue);
  color: var(--blue-strong);
  font-size: 13px;
  font-weight: 700;
}

/* フッター */
.footer {
  padding: 58px 0 70px;
  color: rgba(255, 255, 255, .68);
  background: var(--black);
}

.footer-follow {
  margin-bottom: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  text-align: center;
}

.footer-follow-title {
  margin-bottom: 20px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: .24em;
}

.footer-sns {
  display: flex;
  justify-content: center;
  gap: 18px;
}

.footer-sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 50%;
  color: var(--white);
  transition: background .22s ease, border-color .22s ease, transform .22s ease;
}

.footer-sns a:hover {
  background: var(--blue);
  border-color: var(--blue);
  transform: translateY(-3px);
}

.footer-sns svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
}

.footer-logo {
  width: 140px;
  margin-bottom: 18px;
  padding: 10px;
  background: var(--white);
}

.footer-logo-beige {
  width: 170px;
  margin-bottom: 18px;
  filter: brightness(1.65) saturate(.72);
}

.footer p {
  margin-bottom: 7px;
  font-size: 11px;
}

.footer-links {
  display: flex;
  gap: 22px;
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 32px), var(--max));
  }

  .site-header {
    height: 64px;
  }

  .brand img {
    height: 38px;
  }

  .brand-logo-beige {
    width: 126px;
  }

  .header-cta {
    font-size: 11px;
  }

  .article-card {
    padding: 24px 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-links {
    flex-direction: column;
    gap: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* 2026-07 beige redesign: match the personal LP */
:root {
  --ivory: #faf7f2;
  --sand: #ede3d6;
  --sand-deep: #d8c4ad;
  --beige: #c8a98b;
  --brown: #8a7060;
  --brown-dark: #3f352f;
  --brown-soft: #67584f;
  --rose: #b97868;
  --line: rgba(63, 53, 47, .14);
  --shadow: 0 22px 60px rgba(63, 53, 47, .11);
  --blue: var(--rose);
  --blue-strong: var(--brown);
  --blue-pale: var(--sand);
  --blue-wash: var(--ivory);
  --ink: var(--brown-dark);
  --ink-soft: var(--brown-soft);
  --black: var(--brown-dark);
  --max: 1040px;
  --serif: "PreDeto Numeric Mincho", "Cormorant Garamond", "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans: "PreDeto Numeric Mincho", "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
}

body {
  color: var(--brown-dark);
  background:
    radial-gradient(circle at 88% 8%, rgba(216, 196, 173, .28), transparent 30%),
    var(--ivory);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

:focus-visible {
  outline-color: var(--rose);
}

.site-header {
  height: 76px;
  background: rgba(250, 247, 242, .94);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.brand-logo-beige {
  width: 174px;
}

.header-cta {
  min-height: 46px;
  padding-inline: 22px;
  color: var(--white);
  background: var(--rose);
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(185, 120, 104, .22);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
}

.header-cta::after,
.button::after {
  content: "↗";
}

.page-head {
  position: relative;
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(44px, 7vw, 76px) clamp(28px, 6vw, 72px);
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 255, 255, .82), transparent 26%),
    linear-gradient(135deg, #f7efe6, var(--sand));
  border: 1px solid var(--line);
  border-radius: 32px;
}

.page-head::after {
  content: "COLUMN";
  position: absolute;
  right: -12px;
  bottom: -28px;
  color: rgba(138, 112, 96, .1);
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(86px, 15vw, 170px);
  font-weight: 600;
  line-height: .8;
  letter-spacing: -.04em;
  pointer-events: none;
}

.label,
.article-tag {
  color: var(--rose);
}

.label::before {
  background: var(--rose);
}

.page-title,
.article h1 {
  position: relative;
  z-index: 1;
  color: var(--brown-dark);
  font-family: var(--serif);
  font-weight: 500;
}

.page-lead {
  position: relative;
  z-index: 1;
  color: var(--brown-soft);
}

.article-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-top: 40px;
}

.article-card {
  position: relative;
  min-height: 270px;
  padding: 34px 32px 30px;
  overflow: hidden;
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 16px 42px rgba(63, 53, 47, .08);
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--rose), var(--beige));
}

.article-card::after {
  content: "READ";
  position: absolute;
  right: 20px;
  bottom: 2px;
  color: rgba(138, 112, 96, .08);
  font-family: "Cormorant Garamond", serif;
  font-size: 68px;
  font-weight: 600;
  line-height: 1;
  pointer-events: none;
}

.article-card:hover {
  border-color: rgba(185, 120, 104, .55);
  box-shadow: 0 24px 58px rgba(63, 53, 47, .14);
}

.article-card-meta,
.article-card h2,
.article-card p,
.article-card-more {
  position: relative;
  z-index: 1;
}

.article-tag {
  padding: 4px 11px;
  background: rgba(216, 196, 173, .38);
  border-radius: 999px;
}

.article-card h2 {
  color: var(--brown-dark);
}

.article-card p,
.article-card-meta time {
  color: var(--brown-soft);
}

.article-card-more {
  border-color: var(--rose);
  color: var(--rose);
}

.article {
  padding-bottom: clamp(80px, 10vw, 130px);
}

.article .container {
  width: min(calc(100% - 48px), 940px);
}

.article .page-head {
  margin-bottom: 0;
}

.article-body {
  padding: clamp(38px, 7vw, 72px);
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 28px 28px;
  box-shadow: var(--shadow);
}

.article-body h2 {
  padding: 18px 22px;
  color: var(--brown-dark);
  background: linear-gradient(90deg, var(--sand), rgba(237, 227, 214, .35));
  border-left-color: var(--rose);
  border-radius: 0 14px 14px 0;
}

.article-body h3 {
  color: var(--brown-dark);
  border-bottom-color: var(--sand-deep);
}

.article-note {
  color: var(--brown-soft);
  background: var(--ivory);
  border-color: var(--sand-deep);
  border-radius: 16px;
}

.article-cta {
  margin-top: 46px;
  padding: 44px 30px;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 255, 255, .14), transparent 30%),
    var(--brown-dark);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.article-cta .button {
  color: var(--brown-dark);
  background: var(--white);
  border-radius: 999px;
}

.back-link {
  color: var(--brown);
}

.footer {
  background: var(--brown-dark);
}

.footer-sns a:hover {
  background: var(--rose);
  border-color: var(--rose);
}

@media (max-width: 760px) {
  .container,
  .article .container {
    width: min(calc(100% - 32px), var(--max));
  }

  .site-header {
    height: 66px;
  }

  .brand-logo-beige {
    width: 132px;
  }

  .header-cta {
    min-height: 42px;
    padding-inline: 16px;
  }

  .page-head {
    margin-top: 20px;
    padding: 38px 24px 42px;
    border-radius: 24px;
  }

  .page-head::after {
    right: -6px;
    bottom: -12px;
    font-size: 84px;
  }

  .article-list {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 26px;
  }

  .article-card {
    min-height: 0;
    padding: 28px 22px 24px;
    border-radius: 20px;
  }

  .article-body {
    padding: 30px 22px 38px;
    border-radius: 0 0 22px 22px;
  }

  .article-body h2 {
    margin-top: 42px;
    padding: 14px 16px;
  }

  .article-cta {
    padding: 38px 22px;
    border-radius: 20px;
  }
}

/* 関連コラム(静的記事ページ) */
.related-articles {
  margin: 48px 0 0;
  padding: 28px 30px;
  background: var(--paper, #f6fbfb);
  border: 1px solid rgba(28, 171, 177, .25);
}

.related-articles h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--blue-strong, #157a80);
}

.related-articles ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.related-articles a {
  color: var(--ink, #223);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.related-articles a:hover {
  color: var(--blue-strong, #157a80);
}