/*
 * officeihara — 会員ページ 共通スタイルシート
 * ---------------------------------------------------------------
 * Design tokens extracted from Figma SVG source
 * Font  : Noto Sans JP / Noto Sans CJK JP
 * Colors:
 *   --color-navy       : #263b59   (main text / heading)
 *   --color-navy-mid   : #354a68   (card accent bar / button)
 *   --color-navy-dark  : #233c5c   (newsletter heading)
 *   --color-gold       : #f2b43f   (accent / EN label)
 *   --color-gold-deep  : #c8a947   (newsletter accent)
 *   --color-bg         : #f6f8fb   (page background)
 *   --color-bg-alt     : #f5f7fb   (newsletter bg)
 *   --color-white      : #ffffff
 *   --color-text       : #1f2937   (body text)
 *   --color-muted      : #64748b / #687386
 *   --color-border     : #d9e1ec / #dce3ec
 *   --color-border-lt  : #edf1f6
 *   --color-red        : #b94d3f / #c94d3f  (PDF badge)
 *   --color-word       : #2f67b1
 *   --color-excel      : #23814d
 *   --color-teal       : #5fa3a0   (newsletter cover accent)
 *
 * 設計方針:
 *   BEM (Block__Element--Modifier)
 *   モバイルファースト
 *   WordPress テンプレート変換前提のため汎用クラス名を使用
 * ---------------------------------------------------------------
 */

/* =============================================================
   0. カスタムプロパティ
   ============================================================= */
:root {
  /* Colors */
  --color-navy:       #263b59;
  --color-navy-mid:   #354a68;
  --color-navy-dark:  #233c5c;
  --color-gold:       #f2b43f;
  --color-gold-deep:  #c8a947;
  --color-bg:         #f6f8fb;
  --color-white:      #ffffff;
  --color-text:       #1f2937;
  --color-muted:      #64748b;
  --color-border:     #d9e1ec;
  --color-border-lt:  #edf1f6;
  --color-red:        #b94d3f;
  --color-red-dl:     #c94d3f;
  --color-word:       #2f67b1;
  --color-excel:      #23814d;
  --color-teal:       #5fa3a0;

  /* Typography */
  --font-family:    'Noto Sans JP', 'Noto Sans CJK JP', sans-serif;
  --fs-en-label:    0.875rem;  /* 14px */
  --fs-page-title:  2.125rem; /* 34px */
  --fs-h2:          1.6875rem; /* 27px */
  --fs-h2-sm:       1.5625rem; /* 25px */
  --fs-body:        1rem;      /* 16px */
  --fs-muted:       0.875rem;  /* 14px */
  --fs-date:        0.9375rem; /* 15px */
  --fs-btn:         0.9375rem; /* 15px */
  --fs-cat:         0.8125rem; /* 13px */
  --fs-name:        0.875rem;  /* 14px */
  --fs-desc:        0.75rem;   /* 12px */

  /* Letter spacing */
  --ls-en:   0.16em;
  --ls-title: 0.04em;
  --ls-h2:    0.05em;
  --ls-btn:   0.05em;
  --ls-date:  0.03em;

  /* Spacing */
  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  1.5rem;
  --sp-lg:  2rem;
  --sp-xl:  3rem;
  --sp-2xl: 4rem;

  /* Shadow */
  --shadow-card: 0 8px 28px rgba(30, 41, 59, .10);

  /* Radius */
  --radius-sm:  0.125rem;
  --radius-md:  0.25rem;
  --radius-lg:  0.5rem;

  /* Layout */
  --container-max: 1040px;
  --container-side: 3rem; /* 両サイド最小余白 */
}

/* =============================================================
   1. ベースリセット (会員ページスコープ)
   ============================================================= */
.l-main *,
.l-main *::before,
.l-main *::after {
  box-sizing: border-box;
}

.l-main {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
}

/* =============================================================
   2. レイアウト
   ============================================================= */
.l-container {
  width: 100%;
  max-width: calc(var(--container-max) + var(--container-side) * 2);
  margin-inline: auto;
  padding-inline: var(--container-side);
}

/* =============================================================
   3. ページヒーロー（ページタイトル部）
   ============================================================= */
.c-page-hero {
  padding-block: var(--sp-lg) var(--sp-md);
  background-color: var(--color-bg);
  margin-top:100px;
}
@media screen and (max-width: 767px) {
    .c-page-hero {
    margin-top: 90px;
    }
}

.c-page-hero__inner {
  padding-block-start: var(--sp-lg);
}

.c-page-hero__en {
  font-size: var(--fs-en-label);
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: var(--ls-en);
  text-transform: uppercase;
  margin: 0;
}

.c-page-hero__title {
  font-size: var(--fs-page-title);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: var(--ls-title);
  margin: 0.4em 0 0;
}

.c-page-hero__rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: 1rem;
}

.c-page-hero__lead {
  color: var(--color-muted);
  margin: 0;
}

/* =============================================================
   4. セクション共通
   ============================================================= */
.c-member-section {
  padding-block: var(--sp-lg) var(--sp-xl);
}

.c-member-section--backnumber {
  padding-block-start: 0;
}

/* =============================================================
   5. カード共通
   ============================================================= */
.c-card {
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  margin-block-end: var(--sp-lg);
}

.c-card__header-bar {
  height: 6px;
  background-color: var(--color-navy-mid);
  border-radius: 0;
}

.c-card__body {
  padding: var(--sp-md) var(--sp-lg) var(--sp-lg);
}

.c-card__body--row {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  flex-wrap: wrap;

}

.c-card__section-label {
  display: flex;
  align-items: baseline;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  margin-block-end: var(--sp-xs);
}

.c-label-en {
  font-weight: 600;
  color: var(--color-gold);
  letter-spacing: var(--ls-en);
  text-transform: uppercase;
  margin: 0;
  line-height: 1;
}

.c-card__heading {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: var(--ls-h2);
  margin: 0;
  line-height: 1.3;
}

.c-card__heading-note {
  font-size: 1rem;
  color: var(--color-muted);
  margin: 0;
}

.c-card__divider {
  border: none;
  border-top: 1px solid var(--color-border);
}

.c-card__divider--top {
  margin-block: var(--sp-sm) 0;
}

.c-card__footer {
  display: flex;
  justify-content: flex-end;
  padding-block-start: var(--sp-md);
}

.c-card__footer a{
    color: #FFF;
}

/* =============================================================
   6. ボタン共通
   ============================================================= */
.c-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: var(--ls-btn);
  text-decoration: none;
  border-radius: 0;
  padding: 0.75em 1.25em;
  cursor: pointer;
  transition: opacity 0.15s ease, background-color 0.15s ease;
}

.c-btn:hover,
.c-btn:focus-visible {
  opacity: 0.85;
}

.c-btn:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

.c-btn--primary {
  background-color: var(--color-navy-mid);
  color: var(--color-white);
}

.c-btn--arrow::after {
  content: "›";
  font-size: 1.2em;
  line-height: 1;
}

.c-btn--dl {
  font-size: 0.8125rem;
}

.c-btn--red {
  background-color: var(--color-red);
  color: var(--color-white);
  padding: 0.6em 1.1em;
}

.c-btn--navy-sm {
  background-color: var(--color-navy-mid);
  color: var(--color-white);
  padding: 0.4em 0.8em;
  font-size: 0.8125rem;
}

.c-btn__icon {
  flex-shrink: 0;
}

/* ダウンロードボタン（テーブル内） */
.c-btn-dl {
  display: inline-block;
  font-weight: 700;
  color: var(--color-navy-mid);
  white-space: nowrap;
  transition: color 0.15s ease;
}

.c-btn-dl:hover,
.c-btn-dl:focus-visible {
  color: var(--color-gold);
}

.c-btn-dl:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* =============================================================
   7. バッジ
   ============================================================= */
.c-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.15em 0.75em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  line-height: 1.4;
}

.c-badge--new {
  background-color: var(--color-red);
  color: var(--color-white);
}

.c-badge--back {
  background-color: #eef3f8;
  color: var(--color-navy-mid);
  border: 1px solid var(--color-border);
  font-size: 0.75rem;
}

.c-badge--important {
  background-color: #c94d3f;
  color: var(--color-white);
  font-size: 0.75rem;
  padding: 0.1em 0.6em;
}

/* =============================================================
   8. お知らせリスト（会員TOP・一覧共通）
   ============================================================= */
.c-notice-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.c-notice-list__item {
  border-bottom: 1px solid var(--color-border-lt);
}

.c-notice-list__item--important {
  background-color: #fff8f0;
}

.c-notice-list__link {
  display: flex;
  align-items: center;
  gap: 0.75em;
  padding: 0.875em var(--sp-sm);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.12s ease;
  flex-wrap: wrap;
}

.c-notice-list__link:hover,
.c-notice-list__link:focus-visible {
  background-color: #f0f4f9;
}

.c-notice-list__link:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: -2px;
}

.c-notice-list__date {
  font-weight: 700;
  color: var(--color-navy-mid);
  letter-spacing: var(--ls-date);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 7em;
}

.c-notice-list__category {
  font-size: var(--fs-cat);
  font-weight: 700;
  color: var(--color-navy-mid);
  background-color: #eef3f8;
  border: 1px solid var(--color-border);
  padding: 0.1em 0.6em;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.c-notice-list__title {
  font-weight: 400;
  color: var(--color-text);
  flex: 1 1 auto;
  min-width: 0;
}

.c-notice-list__empty {
  padding: var(--sp-md);
  color: var(--color-muted);
  font-size: var(--fs-muted);
  text-align: center;
}

/* =============================================================
   9. ページネーション
   ============================================================= */
.c-pagination {
  margin-block-start: var(--sp-lg);
  display: flex;
  justify-content: center;
}

.c-pagination .page-numbers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: center;
}

.c-pagination .page-numbers li a,
.c-pagination .page-numbers li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5em;
  height: 2.5em;
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 0.12s ease, color 0.12s ease;
  color: var(--color-navy-mid);
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.c-pagination .page-numbers li .current {
  background-color: var(--color-navy-mid);
  color: var(--color-white);
  border-color: var(--color-navy-mid);
}

.c-pagination .page-numbers li a:hover,
.c-pagination .page-numbers li a:focus-visible {
  background-color: #eef3f8;
}

.c-pagination .page-numbers li a:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* =============================================================
   10. バナーカード（会員TOP — 様式集・事務所通信）
   ============================================================= */
.c-member-banner-nav {
  padding-block: 0 var(--sp-xl);
}

.c-member-banner-nav__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  gap: var(--sp-lg);
}

.c-banner-card {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 100%);
  padding: 2rem 2rem 2rem 2.25rem;
  text-decoration: none;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.45);
  min-height: 180px;
  transition: opacity 0.15s ease;
  position: relative;
}

.c-banner-card:hover,
.c-banner-card:focus-visible {
  opacity: 0.9;
}

.c-banner-card:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
}

.c-banner-card__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
}

.c-banner-card__content {
  flex: 1 1 auto;
  min-width: 0;
}

.c-banner-card__title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-white);
  margin: 0 0 0.5em;
  line-height: 1.2;
}

.c-banner-card__text {
  font-weight: 500;
  color: #e9eef6;
  margin: 0 0 1em;
  line-height: 1.6;
}

.c-banner-card__btn {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: var(--ls-btn);
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.12);
  padding: 0.5em 1.25em;
}

/* =============================================================
   11. カテゴリチップ（様式集）
   ============================================================= */
.c-category-nav {
  padding-block: 0 var(--sp-sm);
}

.c-chip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 20px;
}

.c-chip {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.12s ease, color 0.12s ease;
  white-space: nowrap;
  border-radius: var(--radius-sm);
}

.c-chip a{
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  padding: 0.6em 1em;
  background: var(--color-white);
  display:block;
}

.c-chip a:hover,
.c-chip a:focus-visible {
  background-color: #eef3f8;
}

.c-chip a:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.c-chip .c-chip--active{
  background-color: var(--color-navy-mid);
  color: var(--color-white);
  border-color: var(--color-navy-mid);
}

/* =============================================================
   12. 様式テーブル
   ============================================================= */
.c-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-block-start: var(--sp-md);
}

.c-forms-table {
  width: 100%;
  border-collapse: collapse;
}

.c-forms-table__caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ヘッダー */
.c-forms-table__th {
  background-color: var(--color-navy-mid);
  color: var(--color-white);
  font-weight: 700;
  padding: 0.75em 1em;
  text-align: left;
  white-space: nowrap;
  text-align: center;
}

@media screen and (max-width: 767px) {
  .c-forms-table__th{
    font-size:12px;
    padding: 0.5em 0.75em;
}
}
.c-forms-table__th--file  { width: 80px;  }
.c-forms-table__th--cat   { width: 120px; }
.c-forms-table__th--name  { width: 200px; }
.c-forms-table__th--desc  { /* auto */     }
.c-forms-table__th--dl    { width: 100px; }

/* 行 */
.c-forms-table__row--even { background-color: #fbfcfe; }
.c-forms-table__row--odd  { background-color: var(--color-white); }
.c-forms-table__row {
  border-bottom: 1px solid var(--color-border-lt);
  transition: background-color 0.1s ease;
}

.c-forms-table__row:hover {
  background-color: #f0f4f9;
}

/* セル */
.c-forms-table__td {
  padding: 1em;
  vertical-align: middle;
  color: var(--color-text);
}

.c-forms-table__file{
  font-size: 12px;
}

.c-forms-table__cat {
  font-weight: 700;
  color: var(--color-navy-mid);
}

.c-forms-table__cat span{
  white-space: nowrap;
}

.c-forms-table__name {
  font-weight: 700;
  color: var(--color-text);
}

.c-forms-table__empty {
  padding: var(--sp-lg);
  text-align: center;
  color: var(--color-muted);
}

@media screen and (max-width: 767px){
  .c-forms-table__name{
  width:100px;
  }
  .c-forms-table__desc-text{
  width:300px;
  }
}


/* ファイルバッジ */
.c-file-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 30px;
  font-weight: 800;
  color: var(--color-white);
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}

/* =============================================================
   13. 事務所通信 — 最新号
   ============================================================= */
.c-newsletter-latest {
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  border-top: 8px solid var(--color-navy-mid);
  padding: var(--sp-md) var(--sp-lg) var(--sp-lg);
}

.c-newsletter-latest__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  margin-block-end: var(--sp-md);
  padding-block-end: var(--sp-sm);
  border-bottom: 1px solid var(--color-border);
}

.c-newsletter-latest__date {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  letter-spacing: 0.02em;
}

.c-newsletter-latest__body {
  display: flex;
  gap: var(--sp-lg);
  flex-wrap: wrap;
}

.c-newsletter-latest__detail {
  flex: 1 1;
  min-width: 0;
}

.c-newsletter-latest__issue-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-navy-dark);
  letter-spacing: 0.03em;
  margin: 0 0 0.5em;
  line-height: 1.25;
}

.c-newsletter-latest__lead {
  font-size: 0.9375rem;
  color: #687386;
  margin: 0 0 var(--sp-md);
}

.newsletter__topics{
  text-align:start;
}

.newsletter__topics p{
  margin: 0;
}

.newsletter__topics--title{
  color: var(--color-gold);
  margin: 0;
  font-weight: 600;
  border-bottom: 1px solid #b5b5b5;
}

/* 目次 */
.c-newsletter-main-content-toc{
    color: var(--color-gold);
  margin: 0;
  font-weight: 600;
}

.c-newsletter-toc {
  margin-block-end: var(--sp-md);
  text-align:start;
}

.c-newsletter-toc__heading {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-gold-deep);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin: 0 0 0.5em;
}

.c-newsletter-toc__heading--sm {
  font-size: 0.8125rem;
  margin: 0 0 0.35em;
}

.c-newsletter-toc__body {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.c-newsletter-toc__col {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1 1 0;
  min-width: 180px;
}

.c-newsletter-toc__col li {
  font-size: 1.0625rem;
  font-weight: 500;
  color: #253041;
  line-height: 2;
}

.c-newsletter-toc__body ul {
  list-style-type: disc; /* ← 追加：黒丸を復活させる */
  padding-left: 1.2em;   /* ← 変更：padding: 0; から左の余白だけ開ける形に修正 */
  margin: 0;
  flex: 1 1 0;
  min-width: 180px;
}

.c-newsletter-toc__body ul li {
  font-size: 1.0625rem;
  font-weight: 500;
  color: #253041;
  line-height: 2;
  display: list-item;    /* ← 追加：liの性質を強制リセットしてお守りにする */
}

/* トピックス */
.c-newsletter-topics__heading {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-gold-deep);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin: var(--sp-sm) 0 0.5em;
}

.c-newsletter-topics__body {
  font-size: 1rem;
  color: #253041;
  line-height: 1.8;
  margin: 0;
}

.c-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--sp-sm);
}

/* =============================================================
   14. 事務所通信 — ニュースレターカバー
   ============================================================= */
.c-newsletter-cover {
  flex-shrink: 0;
  width: 226px;
}

.c-newsletter-cover--sm {
  width: 86px;
}

.c-newsletter-cover img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
}

/* ダミーカバー */
.c-newsletter-cover__placeholder {
  width: 100%;
  border: 1px solid var(--color-border);
  background: #fafafa;
  aspect-ratio: 226 / 330;
  display: flex;
  align-items: stretch;
}

.c-newsletter-cover__inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.c-newsletter-cover__header {
  width: 100%;
  background-color: var(--color-teal);
  color: var(--color-white);
  font-size: 0.5625rem;
  font-weight: 800;
  text-align: center;
  padding: 0.4em 0;
  letter-spacing: 0.04em;
}

.c-newsletter-cover__sub {
  font-size: 0.8125rem;
  color: #253041;
  margin: 0.75em 0 0.25em;
}

.c-newsletter-cover__month {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-teal);
  margin: 0;
  line-height: 1;
}

.c-newsletter-cover__rule {
  border: none;
  border-top: 3px solid var(--color-teal);
  width: 38px;
  margin: 0.35em auto;
}

.c-newsletter-cover__year {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #687386;
  margin: 0.25em 0 0;
}

/* =============================================================
   15. バックナンバーグリッド
   ============================================================= */
.c-backnumber-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 480px), 1fr));
  gap: var(--sp-lg);
  margin-bottom:50px;
}

.c-backnumber-card {
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.c-backnumber-card__body {
  flex: 1 1 auto;
  padding: var(--sp-sm) var(--sp-md) var(--sp-md);
}

.c-backnumber-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5em;
  flex-wrap: wrap;
  margin-block-end: var(--sp-sm);
}

.c-backnumber-card__date {
  font-weight: 800;
  color: var(--color-navy-dark);
}

.c-backnumber-card__content {
  display: flex;
  gap: var(--sp-sm);
  align-items: flex-start;
}

.c-backnumber-card__detail {
  flex: 1 1 auto;
  min-width: 0;
}

.c-backnumber-toc {
  list-style: none;
  margin: 0.25em 0 0;
  padding: 0;
}

.c-backnumber-toc li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #253041;
  line-height: 1.8;
}

.c-backnumber-topics__heading {
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-gold-deep);
  letter-spacing: 0.09em;
  margin: var(--sp-xs) 0 0.25em;
}

.c-backnumber-topics__body {
  font-size: 0.75rem;
  color: #687386;
  line-height: 1.7;
  margin: 0;
  /* 3行で切る */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =============================================================
   16. 記事ページ（single-member_news）
   ============================================================= */
.c-card--article {
  /* section-header と同一スタイル */
}

.c-article {
  padding: var(--sp-md) var(--sp-lg) var(--sp-xl);
}

.c-article__header {
  margin-block-end: var(--sp-lg);
}

.c-article__meta {
  display: flex;
  align-items: center;
  gap: 0.75em;
  flex-wrap: wrap;
  margin-block-end: 0.75em;
}

.c-article__date {
  font-size: var(--fs-date);
  font-weight: 700;
  color: var(--color-navy-mid);
  letter-spacing: var(--ls-date);
}

.c-article__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-navy);
  margin: 0 0 0.5em;
  line-height: 1.4;
}

.c-article__excerpt {
  font-size: var(--fs-muted);
  color: var(--color-muted);
  margin: 0 0 var(--sp-sm);
}

.c-article__rule {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--sp-sm) 0;
}

/* 本文エリア */
.c-article__body {
  line-height: 1.8;
  color: var(--color-text);
}

.c-article__body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  margin: 2em 0 0.75em;
  padding-left: 0.75em;
  border-left: 4px solid var(--color-navy-mid);
}

.c-article__body h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-navy-mid);
  margin: 1.5em 0 0.5em;
}

.c-article__body p {
  margin: 0 0 1em;
}

.c-article__body a {
  color: var(--color-navy-mid);
  text-underline-offset: 2px;
}

.c-article__body a:hover {
  opacity: 0.75;
}

.c-article__body ul,
.c-article__body ol {
  margin: 0 0 1em 1.5em;
  padding: 0;
  line-height: 1.4;
  list-style-type: disc;
}

.c-article__body li {
  margin-block-end: 0.35em;
  line-height: 1.4;
}

/* 前後記事ナビ */
.c-article__footer {
  margin-block-start: var(--sp-xl);
  padding-block-start: var(--sp-md);
  border-top: 1px solid var(--color-border-lt);
}

.c-article-nav {
  display: flex;
  justify-content: space-around;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.c-article-nav__link {
  text-decoration: none;
  color: inherit;
  max-width: 46%;
  transition: color 0.12s ease;
}

.c-article-nav__link:hover {
  color: var(--color-navy-mid);
}

.c-article-nav__link:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.c-article-nav__link--next {
  text-align: right;
  margin-left: auto;
}

.c-article-nav__label {
  font-size: 12px;
  color: var(--color-muted);
  margin-block-end: 0.25em;
}

.c-article-nav__ptitle {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-navy-mid);
  /* 2行クランプ */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =============================================================
   17. 戻るリンク
   ============================================================= */
.c-back-link-wrap {
  padding-block: 0 var(--sp-xl);
  display: flex;
  gap: var(--sp-lg);
  flex-wrap: wrap;
  align-items: center;
}

.c-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 700;
  color: var(--color-navy-mid);
  text-decoration: none;
  transition: opacity 0.12s ease;
}

.c-back-link:hover,
.c-back-link:focus-visible {
  opacity: 0.75;
}

.c-back-link:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

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

.c-back-link__arrow {
  font-size: 1.1em;
  line-height: 1;
}

/* =============================================================
   18. その他ユーティリティ
   ============================================================= */
.c-no-content {
  padding: var(--sp-lg);
  text-align: center;
  color: var(--color-muted);
  font-size: var(--fs-muted);
}

/* スクリーンリーダー用 */
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =============================================================
   19. レスポンシブ
   ============================================================= */
@media (max-width: 960px) {
  :root {
    --container-side: 1.5rem;
    --fs-page-title: 1.75rem;
    --fs-h2:         1.375rem;
  }

  .c-newsletter-latest__body {
    flex-direction: column;
  }

  .c-newsletter-cover {
    width: 160px;
    align-self: center;
  }

  .c-newsletter-toc__body {
    flex-direction: column;
    gap: 0;
  }

  .c-newsletter-latest__issue-title {
    font-size: 1.375rem;
  }

  .c-article-nav__link {
    max-width: 100%;
  }
}

@media (max-width: 680px) {
  :root {
    --container-side: 1rem;
  }

  .c-banner-card {
    flex-direction: column;
    align-items: flex-start;
    min-height: auto;
    padding: 1.5rem;
    align-items: center;
  }

  .c-member-banner-nav__grid {
    grid-template-columns: 1fr;
  }

  /* .c-forms-table__th--desc,
  .c-forms-table__td--desc {
    display: none; モバイルでは説明文を非表示
  } */

  .c-forms-table__th--file  { width: 64px;  }
  .c-forms-table__th--cat   { width: 80px;  }
  .c-forms-table__th--name  { width: auto;  }
  .c-forms-table__th--dl    { width: 80px;  }

  .c-backnumber-grid {
    grid-template-columns: 1fr;
  }

  .c-backnumber-card__content {
    flex-direction: column;
  }

  .c-card__body--row {
    flex-direction: column;
  }

  .c-notice-list__link {
    flex-wrap: wrap;
    row-gap: 0.25em;
  }

  .c-back-link-wrap--row {
    flex-direction: column;
    gap: var(--sp-sm);
  }
}