@charset "UTF-8";
/* 排水マスター スタイル v2.0
 *
 * 設計の前提
 *  - 訪問者の大半はスマホ。しかも「いま困っている」状態で開く
 *  - なので スマホ優先で作り、PCは2カラムに広げる
 *  - 見出しは強く（弱いとページ全体が「素のHTML」に見える）
 *  - 文字は自前配信の Noto Sans JP。サイトで使う文字だけに絞った1ファイル
 */

/* ---------------------------------------------------------- フォント */

@font-face {
  font-family: "NotoSansJP Site";
  src: url("/assets/fonts/NotoSansJP-site.woff2") format("woff2");
  font-weight: 400 700;   /* 可変フォント。この範囲を1ファイルで賄う */
  font-style: normal;
  font-display: swap;
}

:root {
  --font: "NotoSansJP Site", -apple-system, BlinkMacSystemFont,
          "Hiragino Kaku Gothic ProN", "Hiragino Sans",
          "BIZ UDPGothic", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;

  /* 水まわり＝信頼の青緑、行動＝オレンジ */
  --ink:        #16272d;
  --ink-soft:   #4e6a71;
  --ink-faint:  #7c959c;
  --line:       #dde9e7;
  --line-soft:  #eef5f3;
  --bg:         #ffffff;
  --bg-soft:    #f4faf8;
  --bg-sunk:    #e8f3f0;
  --bg-tint:    #f0f7f6;

  --accent:     #0a6f68;
  --accent-2:   #0d8a80;
  --accent-dk:  #05534e;
  --accent-sft: #e2f2ef;

  --alert:      #e2570c;
  --alert-dk:   #b8430a;
  --alert-sft:  #fff3ea;
  --alert-line: #f6cba9;

  --info:       #1c6f9e;
  --info-sft:   #e9f3f9;
  --warn:       #b7791f;
  --warn-sft:   #fdf6e7;

  --on-accent:  #ffffff;
  --on-alert:   #ffffff;
  --btn-shadow: #a13a08;

  --r-sm: 8px;
  --r:    14px;
  --r-lg: 20px;

  --sh-1: 0 1px 2px rgba(22,39,45,.05), 0 2px 8px rgba(22,39,45,.05);
  --sh-2: 0 2px 6px rgba(22,39,45,.06), 0 10px 26px rgba(22,39,45,.08);
  --sh-cta: 0 6px 20px rgba(226,87,12,.22);

  --measure: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink:#e8f2f0; --ink-soft:#a8c0c3; --ink-faint:#8aa4a8;
    --line:#2c4349; --line-soft:#213338;
    --bg:#101f24; --bg-soft:#16292f; --bg-sunk:#1b333a; --bg-tint:#16292f;
    --accent:#3fc8b6; --accent-2:#5ad6c4; --accent-dk:#7fe3d2; --accent-sft:#12332f;
    --alert:#fb8c3c; --alert-dk:#fdb072; --alert-sft:#2f2018; --alert-line:#5b3a22;
    --info:#79bde6; --info-sft:#152b38; --warn:#e0b063; --warn-sft:#2b2418;
    --on-accent:#06251f; --on-alert:#2a1408; --btn-shadow:#7c3a10;
    --sh-1: 0 1px 2px rgba(0,0,0,.3), 0 2px 8px rgba(0,0,0,.25);
    --sh-2: 0 2px 6px rgba(0,0,0,.35), 0 10px 26px rgba(0,0,0,.3);
    --sh-cta: 0 6px 20px rgba(0,0,0,.4);
  }
}
:root[data-theme="dark"] {
  --ink:#e8f2f0; --ink-soft:#a8c0c3; --ink-faint:#8aa4a8;
  --line:#2c4349; --line-soft:#213338;
  --bg:#101f24; --bg-soft:#16292f; --bg-sunk:#1b333a; --bg-tint:#16292f;
  --accent:#3fc8b6; --accent-2:#5ad6c4; --accent-dk:#7fe3d2; --accent-sft:#12332f;
  --alert:#fb8c3c; --alert-dk:#fdb072; --alert-sft:#2f2018; --alert-line:#5b3a22;
  --info:#79bde6; --info-sft:#152b38; --warn:#e0b063; --warn-sft:#2b2418;
  --on-accent:#06251f; --on-alert:#2a1408; --btn-shadow:#7c3a10;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.95;
  font-feature-settings: "palt" 1;
  letter-spacing: .012em;
  overflow-wrap: anywhere;
  word-break: normal;
  line-break: strict;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 30rem) { body { font-size: 17px; } }
@media (min-width: 62rem) { body { font-size: 17.5px; } }

img, video, iframe { max-width: 100%; height: auto; }
img { border-radius: var(--r-sm); }

a { color: var(--accent-dk); text-underline-offset: .2em; text-decoration-thickness: .07em; }
a:hover { color: var(--accent-2); }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--on-accent); padding: 12px 18px; border-radius: 0 0 10px 0; }
.skip:focus { left: 0; }

/* ---------------------------------------------------------- ヘッダー */

.hd {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.7) blur(12px);
  backdrop-filter: saturate(1.7) blur(12px);
  border-bottom: 1px solid var(--line);
}
@supports not (backdrop-filter: blur(4px)) { .hd { background: var(--bg); } }

.hd__in {
  max-width: 84rem; margin-inline: auto;
  padding: .5rem 1rem;
  display: flex; align-items: center; gap: .9rem;
}
.hd__logo {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 700; font-size: 1.05rem; letter-spacing: .01em;
  color: var(--ink); text-decoration: none; flex: 0 0 auto;
}
.hd__logo:hover { color: var(--accent-dk); }
.hd__mark { width: 2.2rem; height: 2.2rem; flex: 0 0 auto; border-radius: 9px; object-fit: contain; display: block; }

.hd__nav { margin-left: auto; }
.hd__nav ul { list-style: none; display: flex; align-items: center; gap: .3rem; margin: 0; padding: 0; }
.hd__nav a {
  display: block; white-space: nowrap;
  padding: .42rem .7rem; border-radius: 9px;
  font-size: .9rem; font-weight: 700; color: var(--ink-soft); text-decoration: none;
}
.hd__nav a:hover { background: var(--bg-sunk); color: var(--ink); }
.hd__nav a.is-cta {
  color: var(--on-alert); background: var(--alert);
  box-shadow: 0 2px 8px rgba(226,87,12,.28);
}
.hd__nav a.is-cta:hover { background: var(--alert-dk); color: var(--on-alert); }

/* スマホ：ロゴとCTAだけ。それ以外は畳む */
@media (max-width: 44rem) {
  .hd__in { padding: .45rem .8rem; gap: .5rem; }
  .hd__logo { font-size: .98rem; }
  .hd__mark { width: 1.95rem; height: 1.95rem; }
  .hd__nav li:not(:last-child) { display: none; }
  .hd__nav a.is-cta { font-size: .85rem; padding: .45rem .8rem; }
}

/* ---------------------------------------------------------- レイアウト */

.wrap { max-width: 84rem; margin-inline: auto; padding: 0 1.1rem; }
@media (max-width: 30rem) { .wrap { padding: 0 .9rem; } }
.main { padding-block: .9rem 3.5rem; }

.layout { display: block; }
.layout__main { min-width: 0; }
@media (min-width: 62rem) {
  .layout { display: grid; grid-template-columns: minmax(0, 1fr) 21rem; gap: 2.75rem; align-items: start; }
}
@media (min-width: 62rem) and (max-width: 74rem) {
  .layout { grid-template-columns: minmax(0, 1fr) 18rem; gap: 2rem; }
}

.bc { font-size: .78rem; color: var(--ink-faint); padding: .5rem 0 .8rem; }
.bc ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; }
.bc li::after { content: ""; display: inline-block; width: .34rem; height: .34rem; margin: 0 .5rem;
  border-right: 1.5px solid var(--ink-faint); border-bottom: 1.5px solid var(--ink-faint); transform: rotate(-45deg); }
.bc li:last-child::after { display: none; }
.bc a { color: var(--ink-soft); text-decoration: none; }
.bc a:hover { color: var(--accent-dk); text-decoration: underline; }

/* ---------------------------------------------------------- 記事 */

.art { max-width: 100%; }
.art--solo { max-width: 58rem; margin-inline: auto; }

.art__head { margin-bottom: 1.2rem; }
.art__cat {
  display: inline-block; font-size: .76rem; font-weight: 700; letter-spacing: .05em;
  color: var(--on-accent); background: var(--accent);
  padding: .3rem .8rem; border-radius: 999px; text-decoration: none;
}
.art__cat:hover { background: var(--accent-dk); color: var(--on-accent); }

h1 {
  font-size: clamp(1.55rem, 1.1rem + 2.1vw, 2.3rem);
  line-height: 1.42; letter-spacing: -.005em;
  margin: .8rem 0 .7rem; font-weight: 700;
}
.art__meta {
  display: flex; flex-wrap: wrap; gap: .2rem .9rem;
  font-size: .78rem; color: var(--ink-faint);
  padding-bottom: 1rem; border-bottom: 1px solid var(--line);
}
.art__meta span { display: inline-flex; align-items: center; gap: .25rem; }

/* アイキャッチはスマホで画面いっぱいに */
.art__hero { margin: 1.2rem 0 1.8rem; }
.art__hero img { width: 100%; border-radius: var(--r); display: block; box-shadow: var(--sh-1); }
@media (max-width: 40rem) {
  .art__hero { margin-inline: -.9rem; }
  .art__hero img { border-radius: 0; }
}

/* ---------------------------------------------------------- 本文 */

.body { font-size: 1rem; }

/* 見出しが弱いとページ全体が素っ気なく見える。h2はしっかり塗る */
.body h2 {
  font-size: clamp(1.2rem, 1.02rem + .8vw, 1.42rem);
  line-height: 1.5; font-weight: 700; color: var(--on-accent);
  margin: 3rem 0 1.15rem;
  padding: .78rem 1.1rem;
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: var(--r-sm);
  box-shadow: var(--sh-1);
  scroll-margin-top: 4.5rem;
}
.body h2:first-child { margin-top: 1rem; }

.body h3 {
  font-size: clamp(1.06rem, .98rem + .35vw, 1.18rem);
  line-height: 1.55; font-weight: 700;
  margin: 2.2rem 0 .8rem; padding-left: .85rem;
  border-left: 5px solid var(--accent-2); border-radius: 2px;
  scroll-margin-top: 4.5rem;
}
.body h4 {
  font-size: 1rem; font-weight: 700; margin: 1.7rem 0 .55rem;
  color: var(--accent-dk); scroll-margin-top: 4.5rem;
}

.body p { margin: 0 0 1.5rem; }
.body ul, .body ol { margin: 0 0 1.5rem; padding-left: 1.5rem; }
.body li { margin-bottom: .6rem; padding-left: .15rem; }
.body li::marker { color: var(--accent-2); font-weight: 700; }

.body strong, .body b {
  font-weight: 700;
  background: linear-gradient(transparent 58%, color-mix(in srgb, var(--accent) 22%, transparent) 58%);
  padding-bottom: .05em;
}

.body blockquote {
  margin: 1.8rem 0; padding: 1rem 1.2rem;
  background: var(--bg-soft); border-left: 4px solid var(--line);
  border-radius: 0 var(--r-sm) var(--r-sm) 0; color: var(--ink-soft);
}
.body blockquote p:last-child { margin-bottom: 0; }
.body hr { border: 0; border-top: 1px solid var(--line); margin: 2.6rem 0; }

.body figure { margin: 1.8rem 0; }
.body figure img { width: 100%; border-radius: var(--r); box-shadow: var(--sh-1); }
.body figcaption { font-size: .82rem; color: var(--ink-faint); margin-top: .6rem; text-align: center; }
.body img { display: block; margin-inline: auto; }

/* 表は横スクロールできるように。端が切れているのが分かるよう影を出す */
.tw, .body [class*="-table-wrap"], .body .hm-table-wrap {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  margin: 1.8rem 0; border-radius: var(--r-sm);
  /* 端が切れていることが分かるよう、左右にうっすら影を出す */
  background:
    linear-gradient(to right, var(--bg) 30%, rgba(255,255,255,0)),
    linear-gradient(to right, rgba(255,255,255,0), var(--bg) 70%) 100% 0,
    radial-gradient(farthest-side at 0 50%, rgba(22,39,45,.14), rgba(22,39,45,0)),
    radial-gradient(farthest-side at 100% 50%, rgba(22,39,45,.14), rgba(22,39,45,0)) 100% 0;
  background-repeat: no-repeat; background-size: 40px 100%, 40px 100%, 14px 100%, 14px 100%;
  background-attachment: local, local, scroll, scroll;
}
.body table {
  border-collapse: separate; border-spacing: 0; width: 100%; min-width: 30rem;
  font-size: .93rem; background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden;
}
.body th, .body td { border-bottom: 1px solid var(--line); padding: .75rem .9rem; text-align: left; vertical-align: top; }
.body th { background: var(--bg-sunk); font-weight: 700; color: var(--ink); }
.body td + td, .body th + th { border-left: 1px solid var(--line); }
.body tbody tr:last-child td { border-bottom: 0; }
.body tbody tr:nth-child(even) td { background: var(--bg-soft); }

.body iframe { width: 100%; aspect-ratio: 16/9; height: auto; border: 0; border-radius: var(--r); }

/* ==========================================================
   本文中のボックス（旧テーマ由来のクラスもここで受ける）
   ========================================================== */

.body .box, .body .blank-box, .body .hm-point, .body .common-icon-box, .body .hm-affi-box {
  position: relative;
  margin: 1.9rem 0; padding: 1.1rem 1.2rem;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-1);
}
.body .box--danger, .body .danger-box {
  background: var(--alert-sft); border-color: var(--alert-line);
}
.body .box--warn, .body .hm-note, .body .alert-box, .body .hm-editor-note {
  background: var(--warn-sft); border-color: color-mix(in srgb, var(--warn) 34%, transparent);
}
.body .box--info, .body .information-box {
  background: var(--info-sft); border-color: color-mix(in srgb, var(--info) 30%, transparent);
}
.body .box--check {
  background: var(--accent-sft); border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}
.body .box > :first-child, .body .blank-box > :first-child, .body .hm-point > :first-child,
.body .danger-box > :first-child, .body .hm-note > :first-child, .body .information-box > :first-child,
.body .alert-box > :first-child, .body .hm-affi-box > :first-child { margin-top: 0; }
.body .box > :last-child, .body .blank-box > :last-child, .body .hm-point > :last-child,
.body .danger-box > :last-child, .body .hm-note > :last-child, .body .information-box > :last-child,
.body .alert-box > :last-child, .body .hm-affi-box > :last-child { margin-bottom: 0; }
.body .box p, .body .blank-box p, .body .danger-box p, .body .hm-note p, .body .information-box p { margin-bottom: .8rem; }

.body .hm-points { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); margin: 1.7rem 0; }

.body .hm-pr, .body .hm-source-note, .body .hm-policy-lead,
.body [class*="-disclosure"], .body [class*="-source"], .body [class*="-sources"] {
  font-size: .84rem; color: var(--ink-soft); line-height: 1.85;
  background: var(--bg-sunk); border: 1px dashed var(--line);
  padding: .8rem .95rem; border-radius: var(--r-sm); margin: 1.6rem 0;
}
.body .hm-a8-hub-disclosure strong {
  background: var(--ink-soft); color: var(--bg);
  padding: .08rem .45rem; border-radius: 4px; font-size: .74rem; margin-right: .4rem;
}

/* 文字装飾 */
.body .marker, .body .marker-blue, .body .marker-red, .body .bold, .body .red { font-weight: 700; }
.body .marker      { background: linear-gradient(transparent 58%, color-mix(in srgb, #f6c344 62%, transparent) 58%); }
.body .marker-blue { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--info) 30%, transparent) 58%); }
.body .marker-red  { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--alert) 28%, transparent) 58%); }
.body .red, .body .red-under, .body .hl { color: var(--alert); font-weight: 700; }
.body .red-under { text-decoration: underline; text-decoration-color: var(--alert); text-underline-offset: .22em; }
.body .sub { font-size: .87rem; color: var(--ink-soft); }
.body .bb-yellow, .body .bb-blue, .body .bb-red { border-bottom: 2px solid; padding-bottom: .05em; }
.body .bb-yellow { border-color: var(--warn); }
.body .bb-blue   { border-color: var(--info); }
.body .bb-red    { border-color: var(--alert); }

.body .hm-badge {
  display: inline-block; padding: .2rem .7rem; border-radius: 999px;
  background: var(--accent-sft); color: var(--accent-dk); font-size: .8rem; font-weight: 700;
}
.body .hm-check { list-style: none; padding-left: 0; }
.body .hm-check li { position: relative; padding-left: 1.8rem; }
.body .hm-check li::before { content: "✓"; position: absolute; left: .2rem; top: 0; color: var(--accent-2); font-weight: 800; }
.body .hm-lead { font-size: 1.06rem; color: var(--ink); }

.body .embed { position: relative; padding-top: 56.25%; border-radius: var(--r); overflow: hidden;
  margin: 1.8rem 0; background: var(--bg-sunk); }
.body .embed iframe, .body .embed > * { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.body .embed-fig, .body [class*="-figure"], .body .hm-article-image, .body .hm-featured-visual { margin: 1.8rem 0; }
.body [class*="-figure"] img, .body .hm-article-image img { width: 100%; border-radius: var(--r); }
.body .hm-noimage-figure:empty { display: none; }
.body .aligncenter { margin-inline: auto; text-align: center; }
.body .size-full, .body .size-large, .body .size-medium { height: auto; }

.body [class*="-product-grid"] { display: grid; gap: .9rem; margin: 1.6rem 0;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.body .hm-section, .body [class*="-section"] { margin: 2.2rem 0; }

/* ---------------------------------------------------------- 目次 */

.toc {
  margin: 2rem 0; padding: 1.15rem 1.3rem;
  background: var(--bg-tint); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-1);
}
.toc > summary {
  cursor: pointer; font-weight: 700; font-size: 1rem; list-style: none;
  display: flex; align-items: center; gap: .5rem; padding: .1rem 0;
}
.toc > summary::-webkit-details-marker { display: none; }
.toc > summary::before {
  content: ""; width: .52rem; height: .52rem; flex: 0 0 auto;
  border-right: 2.5px solid var(--accent-2); border-bottom: 2.5px solid var(--accent-2);
  transform: rotate(45deg); transition: transform .2s; margin-top: -.2em;
}
.toc[open] > summary::before { transform: rotate(-135deg); margin-top: .15em; }
.toc ol { list-style: none; margin: .9rem 0 0; padding: 0; counter-reset: toc; font-size: .95rem; }
.toc li { counter-increment: toc; }
.toc li a {
  display: flex; gap: .6rem; align-items: baseline;
  padding: .5rem .35rem; text-decoration: none; color: var(--ink-soft); border-radius: var(--r-sm);
}
.toc li a::before {
  content: counter(toc); flex: 0 0 auto;
  min-width: 1.5rem; height: 1.5rem; display: inline-grid; place-items: center;
  background: var(--accent); color: var(--on-accent);
  border-radius: 6px; font-size: .78rem; font-weight: 700;
}
.toc li a:hover { background: var(--bg); color: var(--accent-dk); }
.toc .lv3 { padding-left: 1.4rem; font-size: .9rem; }
.toc .lv3 a::before { content: "–"; background: none; color: var(--accent-2); min-width: .8rem; height: auto; }

/* ---------------------------------------------------------- 結論ボックス */

.ans {
  position: relative;
  margin: 1.9rem 0; padding: 1.15rem 1.3rem;
  background: var(--info-sft);
  border: 1px solid color-mix(in srgb, var(--info) 30%, transparent);
  border-radius: var(--r); box-shadow: var(--sh-1);
}
.ans__t { font-size: .78rem; font-weight: 700; letter-spacing: .09em; color: var(--info); margin: 0 0 .5rem; }
.ans p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------- CTA */

.cta {
  margin: 2.6rem 0; padding: 1.4rem 1.4rem 1.3rem;
  background:
    radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--alert) 9%, transparent), transparent 60%),
    var(--alert-sft);
  border: 1.5px solid var(--alert-line);
  border-radius: var(--r-lg); box-shadow: var(--sh-2);
}
.cta__eyebrow {
  display: inline-flex; align-items: center;
  font-size: .72rem; font-weight: 700; letter-spacing: .12em;
  color: var(--on-alert); background: var(--alert);
  padding: .22rem .7rem; border-radius: 999px;
}
.cta__t { font-size: 1.18rem; font-weight: 700; line-height: 1.55; margin: .75rem 0 .5rem; }
.cta__d { font-size: .93rem; color: var(--ink-soft); margin: 0 0 1.15rem; line-height: 1.85; }
.cta__note { font-size: .78rem; color: var(--ink-faint); margin: .8rem 0 0; line-height: 1.75; }

.btn {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  width: 100%; padding: 1.05rem 1.3rem;
  background: linear-gradient(180deg, var(--alert) 0%, var(--alert-dk) 100%);
  color: var(--on-alert) !important;
  font-size: 1.05rem; font-weight: 700; text-decoration: none; letter-spacing: .02em;
  border: 0; border-radius: 999px; box-shadow: var(--sh-cta);
  transition: transform .14s, box-shadow .14s, filter .14s;
}
.btn::after {
  content: ""; width: .42rem; height: .42rem; flex: 0 0 auto;
  border-right: 2.5px solid currentColor; border-top: 2.5px solid currentColor;
  transform: rotate(45deg); margin-left: .15rem;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(226,87,12,.3); }
.btn:active { transform: translateY(1px); }

.btn--teal {
  background: linear-gradient(180deg, var(--accent-2) 0%, var(--accent) 100%);
  color: var(--on-accent) !important; box-shadow: 0 6px 20px rgba(10,111,104,.24);
}
.btn--teal:hover { box-shadow: 0 8px 24px rgba(10,111,104,.3); }
.btn--ghost {
  background: var(--bg); color: var(--accent-dk) !important;
  border: 2px solid var(--accent-2); box-shadow: none; font-size: .97rem; padding: .85rem 1.2rem;
}
.btn--ghost:hover { background: var(--accent-sft); filter: none; }

/* 追従バー（スマホ） */
.sticky {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: none; gap: .55rem; padding: .6rem .8rem;
  padding-bottom: calc(.6rem + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--bg) 95%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 20px rgba(22,39,45,.09);
  transform: translateY(115%); transition: transform .26s cubic-bezier(.2,.8,.3,1);
}
.sticky.is-on { transform: translateY(0); }
.sticky .btn { padding: .85rem 1rem; font-size: 1rem; }
.sticky__sub {
  flex: 0 0 auto; display: grid; place-items: center;
  padding: 0 .9rem; font-size: .78rem; font-weight: 700; line-height: 1.25; text-align: center;
  color: var(--accent-dk); text-decoration: none;
  border: 2px solid var(--accent-2); border-radius: 999px; background: var(--bg);
}
@media (max-width: 62rem) {
  .sticky { display: flex; }
  body.has-sticky { padding-bottom: 4.6rem; }
}

/* ---------------------------------------------------------- カード / 一覧 */

.grid { display: grid; gap: 1rem; margin: 1.3rem 0; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
@media (min-width: 60rem) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.card {
  display: flex; flex-direction: column; gap: .35rem;
  padding: 1.05rem 1.15rem; background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--r);
  text-decoration: none; color: inherit; box-shadow: var(--sh-1);
  transition: border-color .16s, box-shadow .16s, transform .16s;
}
.card:hover { border-color: var(--accent-2); box-shadow: var(--sh-2); transform: translateY(-2px); color: inherit; }
.card__t { font-weight: 700; font-size: 1rem; line-height: 1.55; color: var(--ink); }
.card:hover .card__t { color: var(--accent-dk); }
.card__d { font-size: .87rem; color: var(--ink-soft); line-height: 1.8; margin: 0; }
.card__m { font-size: .74rem; color: var(--ink-faint); margin-top: auto; padding-top: .4rem; }

.card--img { padding: 0; overflow: hidden; }
.card__img { width: 100%; height: 9.5rem; object-fit: cover; border-radius: 0; display: block; background: var(--bg-sunk); }
.card--img .card__t { padding: .95rem 1.1rem .15rem; }
.card--img .card__d { padding: 0 1.1rem; }
.card--img .card__m { padding: 0 1.1rem 1rem; }
.card--img > .card__d:last-child { padding-bottom: 1.1rem; }

/* 記事リスト */
.list { list-style: none; margin: 1.3rem 0; padding: 0; display: grid; gap: .5rem; }
.list li { border-bottom: 0; }
.list a {
  display: flex; align-items: center; gap: 1rem;
  padding: .75rem .7rem; text-decoration: none; color: var(--ink);
  border: 1px solid transparent; border-radius: var(--r);
  transition: background .16s, border-color .16s;
}
.list a:hover { background: var(--bg-soft); border-color: var(--line); color: var(--accent-dk); }
.list__img {
  flex: 0 0 auto; width: 7.4rem; height: 5rem;
  object-fit: cover; border-radius: 10px; background: var(--bg-sunk); border: 1px solid var(--line);
}
.list__body { display: flex; flex-direction: column; gap: .2rem; min-width: 0; }
.list time { font-size: .76rem; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.list span.t { font-weight: 700; font-size: .98rem; line-height: 1.6; }
@media (max-width: 30rem) {
  .list a { gap: .75rem; padding: .6rem .4rem; }
  .list__img { width: 5.6rem; height: 3.8rem; }
  .list span.t { font-size: .93rem; }
}

/* ---------------------------------------------------------- トップページ */

.hero {
  position: relative; overflow: hidden;
  padding: 2.4rem 1.6rem 2.2rem; margin-bottom: 2rem;
  background:
    radial-gradient(90% 120% at 100% 0%, color-mix(in srgb, var(--alert) 12%, transparent), transparent 55%),
    linear-gradient(150deg, var(--accent-sft) 0%, var(--bg) 55%);
  border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--sh-1);
}
.hero h1 { margin-top: 0; }
.hero__lead { font-size: 1.02rem; color: var(--ink-soft); margin: 0 0 1.5rem; max-width: 42rem; line-height: 1.9; }
.hero__acts { display: flex; flex-wrap: wrap; gap: .7rem; }
.hero__acts .btn { width: auto; flex: 1 1 15rem; }
@media (max-width: 40rem) {
  .hero { padding: 1.8rem 1.15rem 1.7rem; margin-inline: -.15rem; border-radius: var(--r); }
  .hero__acts .btn { flex: 1 1 100%; }
}

.sec { margin: 3rem 0; }
.sec > h2 { font-size: 1.3rem; font-weight: 700; margin: 0 0 .4rem; display: flex; align-items: center; gap: .6rem; }
.sec > h2::before { content: ""; width: .3rem; height: 1.3rem; border-radius: 3px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent)); }
.sec__d { font-size: .92rem; color: var(--ink-soft); margin: 0 0 1.2rem; }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.1rem 0; padding: 0; list-style: none; }
.chips a {
  display: inline-block; padding: .5rem .95rem;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px;
  font-size: .89rem; font-weight: 700; color: var(--ink-soft); text-decoration: none;
}
.chips a:hover { background: var(--accent-sft); border-color: var(--accent-2); color: var(--accent-dk); }

/* ---------------------------------------------------------- サイドバー */

.side { display: grid; gap: 1.2rem; align-content: start; margin-top: 2.5rem; }
@media (min-width: 62rem) { .side { margin-top: 0; } }

.side__sticky { display: none; }
@media (min-width: 62rem) { .side__sticky { display: block; position: sticky; top: 4.6rem; } }

.side__cta {
  padding: 1.2rem 1.2rem 1.1rem;
  background:
    radial-gradient(110% 110% at 0% 0%, color-mix(in srgb, var(--alert) 10%, transparent), transparent 60%),
    var(--alert-sft);
  border: 1.5px solid var(--alert-line);
  border-radius: var(--r-lg); box-shadow: var(--sh-2);
}
.side__cta-t { font-size: 1.05rem; font-weight: 700; line-height: 1.55; margin: .6rem 0 .4rem; }
.side__cta-d { font-size: .86rem; color: var(--ink-soft); margin: 0 0 1rem; line-height: 1.8; }
.side__cta .btn { font-size: .96rem; padding: .85rem 1rem; }
.side__cta .btn + .btn { margin-top: .55rem; }

.side__box { padding: 1.1rem 1.2rem; background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-1); }
.side__box > h2 {
  font-size: .95rem; font-weight: 700; margin: 0 0 .85rem;
  display: flex; align-items: center; gap: .5rem;
}
.side__box > h2::before { content: ""; width: .26rem; height: 1.05rem; border-radius: 3px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent)); }
.side__box ul { list-style: none; margin: 0; padding: 0; }

.side__posts { counter-reset: sp; }
.side__posts li { counter-increment: sp; }
.side__posts li + li { margin-top: .6rem; padding-top: .6rem; border-top: 1px solid var(--line-soft); }
.side__posts a {
  display: flex; gap: .7rem; align-items: center;
  text-decoration: none; color: var(--ink); font-size: .88rem; line-height: 1.6; font-weight: 700;
}
.side__posts a:hover { color: var(--accent-dk); }
.side__thumb { flex: 0 0 auto; width: 4.6rem; height: 3.1rem; object-fit: cover;
  border-radius: 8px; border: 1px solid var(--line); background: var(--bg-sunk); }

.side__cats li { border-bottom: 1px solid var(--line-soft); }
.side__cats li:last-child { border-bottom: 0; }
.side__cats a {
  display: flex; justify-content: space-between; align-items: center; gap: .5rem;
  padding: .55rem .1rem; text-decoration: none; color: var(--ink-soft); font-size: .89rem; font-weight: 700;
}
.side__cats a:hover { color: var(--accent-dk); }
.side__cats a span {
  flex: 0 0 auto; font-size: .74rem; font-weight: 700;
  color: var(--accent-dk); background: var(--accent-sft); padding: .12rem .5rem; border-radius: 999px;
}
.side__about { font-size: .85rem; color: var(--ink-soft); line-height: 1.85; margin: 0 0 .9rem; }

/* ---------------------------------------------------------- 著者・FAQ・関連 */

.author {
  display: flex; gap: 1rem; align-items: flex-start;
  margin: 2.8rem 0 0; padding: 1.2rem 1.3rem;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-1);
}
.author__ico {
  flex: 0 0 auto; width: 2.9rem; height: 2.9rem; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(140deg, var(--accent-2), var(--accent));
  color: var(--on-accent); font-weight: 700; font-size: 1.05rem;
}
.author__n { font-weight: 700; font-size: 1rem; margin: 0 0 .25rem; }
.author__b { font-size: .87rem; color: var(--ink-soft); margin: 0; line-height: 1.85; }

.faq { margin: 2.4rem 0; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--r); margin-bottom: .7rem;
  background: var(--bg); box-shadow: var(--sh-1); overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 1rem 1.15rem; font-weight: 700; font-size: .98rem; list-style: none;
  display: flex; gap: .65rem; align-items: flex-start;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "Q"; flex: 0 0 auto;
  width: 1.5rem; height: 1.5rem; display: grid; place-items: center;
  background: var(--accent); color: var(--on-accent);
  border-radius: 7px; font-size: .8rem; font-weight: 800;
}
.faq details[open] summary { background: var(--bg-soft); }
.faq__a { padding: 1rem 1.15rem; font-size: .94rem; color: var(--ink-soft); border-top: 1px solid var(--line-soft); }
.faq__a p:last-child { margin-bottom: 0; }

.rel { margin: 2.8rem 0 0; }
.rel > h2 { font-size: 1.12rem; margin: 0 0 1rem; display: flex; align-items: center; gap: .6rem; }
.rel > h2::before { content: ""; width: .3rem; height: 1.15rem; border-radius: 3px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent)); }

/* ---------------------------------------------------------- フォーム */

.form { margin: 2rem 0; }
.form__row { display: flex; flex-direction: column; gap: .45rem; margin: 0 0 1.4rem; }
.form label { font-weight: 700; font-size: .93rem; }
.form__req {
  display: inline-block; margin-left: .35rem; padding: .08rem .5rem;
  background: var(--alert); color: var(--on-alert); font-size: .7rem; font-weight: 700;
  border-radius: 5px; vertical-align: middle;
}
.form input[type="text"], .form input[type="email"], .form textarea {
  width: 100%; padding: .8rem .95rem; font: inherit; font-size: 16px;
  color: var(--ink); background: var(--bg);
  border: 1.5px solid var(--line); border-radius: var(--r-sm);
}
.form input:focus, .form textarea:focus { border-color: var(--accent-2); outline: 3px solid var(--accent-sft); }
.form textarea { resize: vertical; min-height: 9.5rem; line-height: 1.85; }
.form button { width: auto; min-width: 13rem; margin-inline: auto; cursor: pointer; }
.form__trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------------------------------------------------------- フッター */

.ft { margin-top: 3.5rem; padding: 2.6rem 0 1.8rem;
  background: var(--bg-soft); border-top: 1px solid var(--line); font-size: .89rem; }
.ft__grid { display: grid; gap: 1.9rem; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); margin-bottom: 1.9rem; }
.ft h2 { font-size: .8rem; letter-spacing: .09em; color: var(--ink-faint); margin: 0 0 .8rem; }
.ft ul { list-style: none; margin: 0; padding: 0; }
.ft li { margin-bottom: .55rem; }
.ft a { color: var(--ink-soft); text-decoration: none; }
.ft a:hover { color: var(--accent-dk); text-decoration: underline; }
.ft__btm { border-top: 1px solid var(--line); padding-top: 1.3rem;
  display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; align-items: center; font-size: .8rem; color: var(--ink-faint); }
.ft__dis { max-width: 48rem; line-height: 1.85; }

/* ---------------------------------------------------------- 補助 */

.pr { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .06em;
  color: currentColor; border: 1px solid currentColor; padding: .04rem .35rem;
  border-radius: 4px; vertical-align: middle; opacity: .8; }
.center { text-align: center; }
.body .center { margin: 2rem 0; }
.body a.btn { display: inline-flex; width: auto; max-width: 100%; }
.muted { color: var(--ink-soft); }
.sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* 旧テーマのボタン類 */
.body .hm-btn, .body .btn-l, .body .btn-blue, .body .btn-red, .body .btn-green,
.body .hm-product-link, .body .hm-a8-provider-button {
  display: flex; align-items: center; justify-content: center; gap: .45rem;
  min-height: 52px; padding: .85rem 1.15rem;
  background: linear-gradient(180deg, var(--accent-2) 0%, var(--accent) 100%);
  color: var(--on-accent) !important;
  font-size: 1rem; font-weight: 700; text-align: center; text-decoration: none !important;
  border-radius: 999px; box-shadow: 0 5px 16px rgba(10,111,104,.2);
  transition: transform .14s, filter .14s;
}
.body .hm-btn:hover, .body .btn-l:hover, .body .btn-blue:hover, .body .btn-red:hover,
.body .btn-green:hover, .body .hm-product-link:hover, .body .hm-a8-provider-button:hover {
  filter: brightness(1.06); transform: translateY(-1px);
}
.body .hm-a8-provider-button {
  background: linear-gradient(180deg, var(--alert) 0%, var(--alert-dk) 100%);
  color: var(--on-alert) !important; box-shadow: var(--sh-cta); margin-top: auto;
}
.body .hm-btn-secondary, .body .hm-product-link-secondary {
  display: flex; align-items: center; justify-content: center;
  min-height: 48px; padding: .75rem 1.05rem;
  background: var(--bg); color: var(--accent-dk) !important;
  border: 2px solid var(--accent-2); border-radius: 999px;
  font-weight: 700; text-decoration: none !important;
}
.body .hm-btns { display: grid; gap: .7rem; margin: 1.7rem 0;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }

/* 業者比較カード */
.body .hm-a8-provider-list { display: grid; gap: 1.1rem; margin: 1.8rem 0;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.body .hm-a8-provider {
  display: flex; flex-direction: column; gap: .65rem; padding: 1.15rem;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--sh-1);
}
.body .hm-a8-provider-media { display: block; text-align: center; }
.body .hm-a8-provider-media img { max-height: 92px; width: auto; margin-inline: auto; }
.body .hm-a8-provider-label { font-weight: 700; font-size: 1.02rem; margin: 0; }
.body .hm-a8-provider-copy { font-size: .88rem; color: var(--ink-soft); margin: 0; flex: 1; }
.body .hm-a8-provider p { margin-bottom: 0; }
.body .hm-a8-pixel, .body img[src*="a8.net/svt/imp"] {
  position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none;
}

/* ルート案内 */
.body .hm-service-route-v1 {
  margin: 2.2rem 0; padding: 1.3rem;
  background: var(--bg-tint); border: 1px solid var(--line);
  border-top: 4px solid var(--accent); border-radius: var(--r);
}
.body .hm-service-route-kicker { margin: 0 0 .35rem !important; color: var(--accent-dk); font-size: .85rem; font-weight: 800; }
.body .hm-service-route-grid { display: grid; gap: .7rem; margin: .9rem 0 0;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); }
.body .hm-service-route-level, .body .hm-service-route-urgent {
  display: block; padding: .9rem 1rem; border-radius: var(--r-sm);
  background: var(--bg); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink); font-size: .91rem; font-weight: 700;
}
.body .hm-service-route-level:hover, .body .hm-service-route-urgent:hover {
  border-color: var(--accent-2); color: var(--accent-dk);
}
.body .hm-service-route-urgent { border-color: var(--alert-line); background: var(--alert-sft); }
.body .hm-service-route-note { font-size: .84rem; color: var(--ink-soft); margin: .8rem 0 0; }

.pager { display: flex; justify-content: center; gap: .45rem; margin: 2.2rem 0; flex-wrap: wrap; }
.pager a, .pager span { min-width: 2.6rem; padding: .5rem .75rem; text-align: center;
  border: 1px solid var(--line); border-radius: var(--r-sm); text-decoration: none;
  font-size: .9rem; font-weight: 700; color: var(--ink-soft); }
.pager a:hover { border-color: var(--accent-2); color: var(--accent-dk); }
.pager .is-now { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }

@media print {
  .hd, .sticky, .cta, .ft, .toc, .side { display: none !important; }
  body { font-size: 11pt; }
}