/* myfans（マイファンズ）使い方・楽しみ方ガイド — 共通スタイル
   方針: 読みやすさ優先。外部フォント・外部読み込みなし。 */

:root {
  --ink: #1b1f27;
  --muted: #4a5261;
  --bg: #fbfaf7;
  --card: #fff;
  --line: #dcd8cd;
  --line-strong: #8a8577;
  --brand: #0f5257;
  --brand-dark: #0b4044;
  --brand-soft: #e5f2f0;
  --link: #0a58a8;
  --focus: #c2410c;
  --caution-bg: #fff4d9;
  --caution-line: #b86e00;
  --caution-ink: #6b4100;
  --info-bg: #edf3fb;
  --info-line: #4f78b0;
  --radius: 12px;
}

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

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 1rem;
  line-height: 1.85;
  overflow-wrap: break-word;
  line-break: strict;
}

[hidden] { display: none !important; }

img, svg { max-width: 100%; height: auto; }

a { color: var(--link); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: .5rem;
  top: -5rem;
  z-index: 10;
  background: var(--ink);
  color: #fff;
  padding: .6rem 1rem;
  border-radius: 8px;
}
.skip:focus { top: .5rem; }

.wrap { max-width: 48rem; margin: 0 auto; padding: 0 1rem; }
.wrap-wide { max-width: 66rem; }

/* ---- 上部のお知らせ・ヘッダー ---- */
.notice-bar {
  background: var(--ink);
  color: #fff;
  font-size: .85rem;
  line-height: 1.5;
  text-align: center;
}
.notice-bar p { margin: 0; padding: .45rem 1rem; }

.site-header { background: #fff; border-bottom: 1px solid var(--line); }

.brand {
  display: inline-flex;
  flex-wrap: wrap;
  column-gap: .4em;
  align-items: baseline;
  margin: .4rem 0 .1rem;
  padding: .4rem 0;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.4;
}
.brand-name { font-weight: 800; font-size: 1.15rem; color: var(--brand); }
.brand-sub { font-weight: 700; font-size: 1rem; }

.site-nav ul {
  display: flex;
  gap: .5rem;
  list-style: none;
  max-width: 66rem;
  margin: 0 auto;
  padding: .4rem 1rem .8rem;
  overflow-x: auto;
  scrollbar-width: thin;
}
.site-nav li + li { margin-top: 0; }
.site-nav a {
  display: block;
  white-space: nowrap;
  padding: .45rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-size: .92rem;
  line-height: 1.5;
}
.site-nav a:hover { border-color: var(--brand); }
.site-nav a[aria-current="page"] {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  font-weight: 700;
}

/* ---- 本文 ---- */
main { padding-bottom: 2.5rem; }

.page-head { padding: 1.75rem 0 .25rem; }
.hero { background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); }

.eyebrow { margin: 0 0 .4rem; font-size: .85rem; color: var(--muted); font-weight: 700; }

h1, h2, h3 { line-height: 1.45; margin: 0; }
h1 { font-size: clamp(1.45rem, 1.1rem + 1.8vw, 2.1rem); letter-spacing: .01em; }
h2 {
  font-size: clamp(1.25rem, 1.1rem + .8vw, 1.5rem);
  margin: 2.6rem 0 .9rem;
  padding-left: .7rem;
  border-left: 5px solid var(--brand);
  scroll-margin-top: 1rem;
}
h3 { font-size: 1.08rem; margin: 1.7rem 0 .5rem; scroll-margin-top: 1rem; }

p, ul, ol, dl, table { margin: 0 0 1rem; }
ul, ol { padding-left: 1.4em; }
li + li { margin-top: .35rem; }

.lead { font-size: 1.05rem; margin-top: .9rem; }
.checked { font-size: .85rem; color: var(--muted); }
.small { font-size: .9rem; }

/* ---- 囲み ---- */
.box {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-left-width: 6px;
  border-radius: var(--radius);
}
.box > :last-child { margin-bottom: 0; }
.box-title { font-weight: 800; margin: 0 0 .4rem; }
.caution { background: var(--caution-bg); border-color: var(--caution-line); }
.caution .box-title { color: var(--caution-ink); }
.point { background: var(--brand-soft); border-color: var(--brand); }
.point .box-title { color: var(--brand); }
.info { background: var(--info-bg); border-color: var(--info-line); }

/* 画面上のボタン名・タブ名 */
.ui {
  display: inline;
  padding: .05em .4em;
  margin: 0 .1em;
  border: 1px solid #b9b4a6;
  border-radius: 6px;
  background: #fff;
  font-weight: 700;
  font-size: .92em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* アプリ内の道順 */
.path {
  background: #fff;
  border: 1px dashed #b9b4a6;
  border-radius: var(--radius);
  padding: .7rem .9rem;
  line-height: 2.2;
}

/* 手順 */
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps > li {
  counter-increment: step;
  position: relative;
  min-height: 2rem;
  padding-left: 2.7rem;
}
.steps > li + li { margin-top: .8rem; }
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: .05rem;
  width: 1.95rem;
  height: 1.95rem;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: .95rem;
  line-height: 1.95rem;
  text-align: center;
}

/* ---- カード・比較 ---- */
.grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin: 0 0 1rem; }
@media (min-width: 48rem) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.1rem 1rem;
}
.card > :last-child { margin-bottom: 0; }
.card h3 { margin-top: 0; }
.card dl { margin: 0 0 .8rem; }
.card dt { margin-top: .7rem; font-size: .82rem; font-weight: 700; color: var(--muted); }
.card dd { margin: 0; }
.card-link { font-weight: 700; }

.tag {
  display: inline-block;
  margin-bottom: .4rem;
  padding: .05rem .55rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: .78rem;
  font-weight: 700;
}

/* 大きな入口ボタン */
.go {
  display: grid;
  gap: .75rem;
  grid-template-columns: 1fr;
  list-style: none;
  padding: 0;
}
.go li + li { margin-top: 0; }
@media (min-width: 40rem) { .go { grid-template-columns: repeat(3, 1fr); } }
.go a {
  display: block;
  height: 100%;
  padding: .9rem 1rem;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  line-height: 1.5;
}
.go a:hover { background: var(--brand-dark); }
.go a span { display: block; margin-top: .2rem; font-size: .88rem; font-weight: 400; }

/* 番号つきの要点 */
.musts { list-style: none; padding: 0; counter-reset: must; }
.musts > li {
  counter-increment: must;
  position: relative;
  padding: .9rem 1rem .9rem 3.2rem;
  background: var(--caution-bg);
  border: 1px solid #e7c98a;
  border-radius: var(--radius);
}
.musts > li + li { margin-top: .7rem; }
.musts > li::before {
  content: counter(must);
  position: absolute;
  left: 1rem;
  top: .95rem;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--caution-line);
  color: #fff;
  font-weight: 800;
  line-height: 1.7rem;
  text-align: center;
}
.musts strong { display: block; }

/* Q&A */
.qa { margin: 0 0 1rem; }
.qa dt { margin-top: 1.3rem; font-weight: 800; }
.qa dt::before { content: "Q. "; color: var(--brand); }
.qa dd { margin: .25rem 0 0; padding-left: 1.6em; }

/* 表 */
.table-wrap { overflow-x: auto; margin: 0 0 1rem; }
table { border-collapse: collapse; width: 100%; background: #fff; font-size: .95rem; margin: 0; }
caption { text-align: left; font-weight: 700; padding-bottom: .4rem; }
th, td { border: 1px solid var(--line); padding: .55rem .65rem; text-align: left; vertical-align: top; }
thead th { background: #f1efe8; }

/* ---- 更新日の目安ツール ---- */
.tool {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  background: #fff;
  border: 2px solid var(--brand);
  border-radius: var(--radius);
}
.tool h3 { margin-top: 0; }
.tool label { display: block; font-weight: 700; margin-bottom: .35rem; }
.tool-row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.tool input[type="date"] {
  font: inherit;
  min-height: 44px;
  padding: .35rem .6rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}
.btn {
  font: inherit;
  font-weight: 800;
  min-height: 44px;
  padding: .4rem 1.2rem;
  border: 0;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.result { margin-top: 1rem; }
.result:empty { margin: 0; }
.result p { margin: 0 0 .5rem; }
.result .big { font-size: 1.15rem; font-weight: 800; }
.result .warn { color: var(--caution-ink); font-weight: 700; }

/* ---- 根拠・出典 ---- */
.src { margin-top: -.25rem; font-size: .85rem; color: var(--muted); }
.src a { color: inherit; }
a.ext::after { content: "↗"; content: "↗" / ""; margin-left: .15em; font-size: .85em; }

.sources { list-style: none; padding: 0; }
.sources > li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .85rem 1rem;
}
.sources > li + li { margin-top: .7rem; }
.sources .meta { display: block; font-size: .85rem; color: var(--muted); }
.url { overflow-wrap: anywhere; word-break: break-all; font-size: .85rem; }

/* 目次 */
.toc {
  margin: 1.25rem 0;
  padding: .9rem 1.1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.toc-title { font-weight: 800; margin: 0 0 .3rem; }
.toc ol { margin: 0; }

/* 更新履歴 */
.timeline {
  list-style: none;
  margin: 0 0 1rem .4rem;
  padding: 0;
  border-left: 3px solid var(--line);
}
.timeline > li { position: relative; padding-left: 1.1rem; }
.timeline > li + li { margin-top: 1rem; }
.timeline > li::before {
  content: "";
  position: absolute;
  left: calc(-.35rem - 1.5px);
  top: .55rem;
  width: .7rem;
  height: .7rem;
  border-radius: 50%;
  background: var(--brand);
}
.timeline time { display: block; font-size: .9rem; font-weight: 800; color: var(--brand); }

/* 次に読む */
.next { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }

/* ---- フッター ---- */
.site-footer {
  background: #eeece5;
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
  font-size: .9rem;
  color: #2f3540;
}
.foot-title { font-weight: 800; margin-bottom: .5rem; }
.foot-facts { padding-left: 1.2em; }

/* フッターのページ一覧 */
.foot-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.1rem;
  list-style: none;
  margin: .75rem 0 0;
  padding: .75rem 0 0;
  border-top: 1px solid var(--line);
}
.foot-nav li + li { margin-top: 0; }
.foot-nav a { display: inline-block; padding: .45rem 0; }

/* ナビの右端に「続きがある」ことを示すぼかし（すべて収まる幅では出さない） */
.site-nav { position: relative; }
@media (max-width: 56rem) {
  .site-nav ul { padding-right: 2.5rem; scroll-padding-inline: 2.5rem; }
  .site-nav::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 2.25rem;
    background: linear-gradient(to right, rgba(255, 255, 255, 0), #fff 85%);
    pointer-events: none;
  }
}

/* 入口ボタン（4つ） */
@media (min-width: 40rem) { .go { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .go { grid-template-columns: repeat(4, 1fr); } }

/* 目的から選ぶ */
.pick { margin: -.2rem 0 .5rem; font-weight: 800; color: var(--brand); }
.pick::before { content: "→ "; content: "→ " / ""; }

/* 払う前のチェックリスト（保存・送信はしない） */
.checklist { list-style: none; padding: 0; }
.checklist li + li { margin-top: .5rem; }
.check {
  display: flex;
  gap: .7rem;
  align-items: flex-start;
  min-height: 44px;
  padding: .6rem .8rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.check input {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  margin: .3rem 0 0;
  accent-color: var(--brand);
}
.check:has(input:checked) { background: var(--brand-soft); border-color: var(--brand); }

/* 用語集 */
.terms { margin: 0 0 1rem; }
.terms dt {
  margin-top: 1.3rem;
  padding-left: .6rem;
  border-left: 3px solid var(--brand);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.5;
  scroll-margin-top: 1rem;
}
.terms dt:first-child { margin-top: .4rem; }
.terms dt:target { background: var(--caution-bg); }
.terms dd { margin: .3rem 0 0; padding-left: .9rem; }
.more { margin-left: .4em; font-size: .9rem; font-weight: 700; white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}