/* ============================================================
   奈良中央税務会計事務所 — corporate × navy
   DESIGN.md §2-§8 / base.md を CSS 変数 + selectors に展開
   ============================================================ */

:root {
  --cp-primary: #1E3A8A;
  --cp-primary-d: #162d6e;
  --cp-accent: #06B6D4;
  --cp-accent-ink: #0E7490;
  --cp-text: #0F172A;
  --cp-muted: #64748B;
  --cp-bg: #F8FAFC;
  --cp-white: #FFFFFF;
  --cp-line: #E2E8F0;
  --cp-radius: 12px;
  --cp-radius-btn: 6px;
  --cp-maxw: 1200px;
  --cp-pad: clamp(1rem, 3vw, 3rem);
  --cp-section-y: clamp(4rem, 8vw, 8rem);
  --cp-header-h: 4.75rem; /* sticky ヘッダー実測高さ分のクリアランス（下層ヒーロー見出しがヘッダーに隠れないよう確保） */
  --cp-shadow-card: 0 8px 24px rgb(15 23 42 / 8%);
  --cp-shadow-quick: 0 4px 24px rgb(15 23 42 / 8%);
  --font-body: "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --font-disp: "Cormorant Garamond", "Noto Serif JP", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-feature-settings: "palt";
  color: var(--cp-text);
  background: var(--cp-bg);
  line-height: 1.85;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; }

/* ---------- utility ---------- */
.cp-container { max-width: var(--cp-maxw); margin-inline: auto; padding-inline: var(--cp-pad); }
.cp-section { padding-block: var(--cp-section-y); position: relative; }
.cp-section--alt { background: var(--cp-white); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 999;
  background: var(--cp-primary); color: #fff; padding: 0.6rem 1rem;
  border-radius: var(--cp-radius-btn); transition: top 200ms ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- eyebrow / heading ---------- */
.cp-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--cp-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.cp-eyebrow::before {
  content: "";
  width: 28px; height: 4px;
  background: var(--cp-accent);
  border-radius: 2px;
}
.cp-h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--cp-text);
}
.cp-h2 .cp-disp {
  font-family: var(--font-disp);
  font-style: italic;
  font-weight: 600;
  color: var(--cp-primary);
}
.cp-lead {
  margin-top: 1.2rem;
  color: var(--cp-muted);
  max-width: 60ch;
}
.cp-section__head { margin-bottom: clamp(2rem, 4vw, 3.2rem); }

/* ---------- buttons ---------- */
.cp-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--cp-radius-btn);
  font-weight: 600; font-size: 0.95rem;
  transition: transform 200ms ease, background 200ms ease, color 200ms ease, box-shadow 200ms ease;
  border: 1.5px solid transparent;
}
.cp-btn svg { width: 18px; height: 18px; }
.cp-btn--primary { background: var(--cp-primary); color: #fff; }
.cp-btn--primary:hover { background: var(--cp-primary-d); transform: translateY(-2px); box-shadow: var(--cp-shadow-card); }
.cp-btn--outline { border-color: var(--cp-primary); color: var(--cp-primary); background: transparent; }
.cp-btn--outline:hover { background: var(--cp-primary); color: #fff; }
.cp-btn--ghost-light { border-color: rgba(255,255,255,.65); color: #fff; background: transparent; }
.cp-btn--ghost-light:hover { background: #fff; color: var(--cp-primary); }
.cp-btn--block { width: 100%; justify-content: center; }

/* ============================================================
   HEADER
   ============================================================ */
.cp-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--cp-line);
}
.cp-header__inner {
  max-width: var(--cp-maxw); margin-inline: auto;
  padding: 0.7rem var(--cp-pad);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.cp-brand { display: flex; align-items: center; gap: 0.7rem; }
.cp-brand__logo { width: 48px; height: 48px; flex: 0 0 auto; }
.cp-brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.cp-brand__name { font-weight: 700; font-size: 1.02rem; letter-spacing: 0.02em; color: var(--cp-text); }
.cp-brand__sub {
  font-family: var(--font-mono); font-size: 0.5rem; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--cp-muted);
}
.cp-nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.2rem); }
.cp-nav__link {
  font-size: 0.95rem; font-weight: 500; color: var(--cp-text);
  padding-block: 0.4rem; border-bottom: 2px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
}
.cp-nav__link:hover { color: var(--cp-primary); }
.cp-nav__link.is-active { color: var(--cp-primary); border-bottom-color: var(--cp-accent); }
.cp-header__cta { display: inline-flex; }
.cp-burger {
  display: none; width: 44px; height: 44px; border: 1px solid var(--cp-line);
  border-radius: 8px; background: #fff; align-items: center; justify-content: center;
}
.cp-burger svg { width: 24px; height: 24px; stroke: var(--cp-primary); }

/* mobile drawer */
.cp-drawer { position: fixed; inset: 0; z-index: 200; visibility: hidden; }
.cp-drawer[aria-hidden="false"] { visibility: visible; }
.cp-drawer__overlay {
  position: absolute; inset: 0; background: rgb(15 23 42 / 45%);
  opacity: 0; transition: opacity 280ms ease;
}
.cp-drawer[aria-hidden="false"] .cp-drawer__overlay { opacity: 1; }
.cp-drawer__panel {
  position: absolute; top: 0; right: 0; height: 100%; width: min(82vw, 320px);
  background: #fff; padding: 1.4rem 1.5rem; display: flex; flex-direction: column; gap: 0.4rem;
  transform: translateX(100%); transition: transform 320ms cubic-bezier(.4,0,.2,1);
  box-shadow: -8px 0 32px rgb(15 23 42 / 18%);
}
.cp-drawer[aria-hidden="false"] .cp-drawer__panel { transform: translateX(0); }
.cp-drawer__close {
  align-self: flex-end; width: 42px; height: 42px; border: 1px solid var(--cp-line);
  border-radius: 8px; background: #fff; display: flex; align-items: center; justify-content: center;
  margin-bottom: 0.6rem;
}
.cp-drawer__close svg { width: 22px; height: 22px; stroke: var(--cp-text); }
.cp-drawer__link {
  padding: 0.85rem 0.4rem; border-bottom: 1px solid var(--cp-line);
  font-weight: 500; color: var(--cp-text);
}
.cp-drawer__cta { margin-top: 1.2rem; }

/* ============================================================
   HERO
   ============================================================ */
.cp-hero { position: relative; isolation: isolate; min-height: 62vh; display: flex; align-items: center; }
.cp-hero__media { position: absolute; inset: 0; z-index: -2; }
.cp-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.cp-hero__overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgb(30 58 138 / 88%) 0%, rgb(30 58 138 / 60%) 42%, rgb(15 23 42 / 28%) 100%);
}
.cp-hero__noise {
  position: absolute; inset: 0; z-index: -1; opacity: 0.5; mix-blend-mode: overlay; pointer-events: none;
}
.cp-hero__inner { width: 100%; padding-block: clamp(3.5rem, 9vw, 7rem); }
.cp-hero__eyebrow {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: #cffafe; display: inline-flex; align-items: center; gap: 0.6rem; margin-bottom: 1.3rem;
}
.cp-hero__eyebrow::before { content: ""; width: 28px; height: 3px; background: var(--cp-accent); }
.cp-hero h1 {
  color: #fff; font-weight: 700; letter-spacing: 0.04em;
  font-size: clamp(2.2rem, 5.2vw, 3.8rem); line-height: 1.32; max-width: 18ch;
  text-shadow: 0 2px 24px rgb(15 23 42 / 35%);
}
.cp-hero h1 .cp-hero__accent { color: #fff; }
.cp-hero__sub {
  color: #e2e8f0; margin-top: 1.6rem; font-size: clamp(1rem, 1.6vw, 1.15rem);
  max-width: 34ch; line-height: 1.9;
}
.cp-hero__actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: 1rem; }

/* QUICK INFO card over hero bottom */
.cp-quick {
  position: relative; z-index: 2; margin-top: -2.6rem;
}
.cp-quick__grid {
  background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius);
  box-shadow: var(--cp-shadow-quick);
  display: grid; grid-template-columns: repeat(3, 1fr);
}
.cp-quick__item { padding: 1.4rem 1.6rem; display: flex; gap: 0.9rem; align-items: flex-start; }
.cp-quick__item + .cp-quick__item { border-left: 1px solid var(--cp-line); }
.cp-quick__icon { color: var(--cp-primary); flex: 0 0 auto; margin-top: 2px; }
.cp-quick__icon svg { width: 24px; height: 24px; }
.cp-quick__label { font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--cp-muted); }
.cp-quick__value { font-weight: 600; font-size: 0.98rem; margin-top: 0.15rem; word-break: keep-all; overflow-wrap: anywhere; }
.cp-quick__value small { display: block; font-weight: 400; font-size: 0.82rem; color: var(--cp-muted); }

/* ============================================================
   NEWS BAND (navy strip, サムネ踏襲)
   ============================================================ */
.cp-newsband { background: var(--cp-primary); color: #fff; }
.cp-newsband__inner {
  max-width: var(--cp-maxw); margin-inline: auto; padding: 1.5rem var(--cp-pad);
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(1.5rem, 4vw, 3rem);
}
.cp-newsband__label { font-family: var(--font-mono); font-size: 1rem; letter-spacing: 0.32em; font-weight: 500; }
.cp-newsband__list { display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; }
.cp-newsband__row { display: flex; align-items: center; gap: 1rem; font-size: 0.92rem; min-width: 0; }
.cp-newsband__date { font-family: var(--font-mono); font-size: 0.8rem; color: #cbd5e1; flex: 0 0 auto; }
.cp-newsband__tag {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; padding: 0.2rem 0.6rem;
  border: 1px solid rgba(255,255,255,.45); border-radius: 3px; flex: 0 0 auto;
}
.cp-newsband__txt { color: #f1f5f9; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.cp-newsband__more {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.14em; color: #fff;
  display: inline-flex; align-items: center; gap: 0.5rem; border-bottom: 1px solid var(--cp-accent);
  padding-bottom: 0.2rem; white-space: nowrap; transition: gap 200ms ease;
}
.cp-newsband__more:hover { gap: 0.85rem; }

/* ============================================================
   FEATURE CARDS (icon grid like サムネ bottom)
   ============================================================ */
.cp-feature__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.cp-card {
  background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius);
  padding: 1.8rem 1.6rem; transition: transform 220ms ease, box-shadow 220ms ease;
}
.cp-card--link:hover { transform: translateY(-4px); box-shadow: var(--cp-shadow-card); }
.cp-card__icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: color-mix(in oklab, var(--cp-primary) 8%, #fff);
  display: flex; align-items: center; justify-content: center; color: var(--cp-primary); margin-bottom: 1.1rem;
}
.cp-card__icon svg { width: 26px; height: 26px; }
.cp-card__num { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--cp-accent-ink); }
.cp-card h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); font-weight: 600; margin: 0.3rem 0 0.7rem; }
.cp-card p { color: var(--cp-muted); font-size: 0.94rem; }
.cp-card__link {
  margin-top: 1.1rem; display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--cp-primary); font-weight: 600; font-size: 0.9rem; transition: gap 200ms ease;
}
.cp-card__link:hover { gap: 0.75rem; }
.cp-card__link svg { width: 16px; height: 16px; }

/* ============================================================
   STATS (number highlight)
   ============================================================ */
.cp-stats { background: var(--cp-primary); color: #fff; position: relative; isolation: isolate; overflow: hidden; }
.cp-stats__bg { position: absolute; inset: 0; z-index: -2; }
.cp-stats__bg img { width: 100%; height: 100%; object-fit: cover; }
.cp-stats__overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(135deg, rgb(30 58 138 / 95%), rgb(22 45 110 / 88%));
}
.cp-stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.cp-stat__num {
  font-family: var(--font-disp); font-weight: 700; line-height: 1;
  font-size: clamp(3rem, 7vw, 5rem); color: #fff;
}
.cp-stat__unit { font-family: var(--font-mono); font-size: 1rem; color: var(--cp-accent); margin-left: 0.2rem; }
.cp-stat__label { margin-top: 0.6rem; font-size: 0.9rem; color: #cbd5e1; }
.cp-stat + .cp-stat {}

/* ============================================================
   SERVICES list
   ============================================================ */
.cp-services__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.cp-srv {
  background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius);
  padding: 1.8rem; display: flex; gap: 1.2rem; transition: transform 220ms ease, box-shadow 220ms ease;
}
.cp-srv:hover { transform: translateY(-4px); box-shadow: var(--cp-shadow-card); }
.cp-srv__icon {
  width: 52px; height: 52px; flex: 0 0 auto; border-radius: 12px; color: #fff;
  background: linear-gradient(135deg, var(--cp-primary), color-mix(in oklab, var(--cp-primary) 55%, var(--cp-accent)));
  display: flex; align-items: center; justify-content: center;
}
.cp-srv__icon svg { width: 26px; height: 26px; }
.cp-srv h3 { font-size: 1.18rem; font-weight: 600; margin-bottom: 0.5rem; }
.cp-srv p { color: var(--cp-muted); font-size: 0.92rem; }
.cp-srv__no { font-family: var(--font-mono); font-size: 0.7rem; color: var(--cp-accent-ink); letter-spacing: 0.15em; }

/* ============================================================
   MESSAGE / 代表挨拶 (split)
   ============================================================ */
.cp-message { position: relative; isolation: isolate; }
.cp-message__bg { position: absolute; inset: 0; z-index: -2; }
.cp-message__split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.cp-message__figure { position: relative; }
.cp-message__figure img { border-radius: var(--cp-radius); width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.cp-message__badge {
  position: absolute; left: -12px; bottom: -12px; background: var(--cp-primary); color: #fff;
  padding: 0.9rem 1.2rem; border-radius: 10px; box-shadow: var(--cp-shadow-card);
}
.cp-message__badge b { font-family: var(--font-disp); font-size: 1.8rem; line-height: 1; }
.cp-message__badge span { display: block; font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.2em; color: #cffafe; margin-top: 0.3rem; }
.cp-message__body p { margin-bottom: 1.1rem; }
.cp-message__sign { margin-top: 1.6rem; display: flex; align-items: baseline; gap: 0.8rem; }
.cp-message__sign small { font-family: var(--font-mono); font-size: 0.72rem; color: var(--cp-muted); letter-spacing: 0.1em; }
.cp-message__sign b { font-size: 1.2rem; font-weight: 700; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.cp-testi { position: relative; isolation: isolate; }
.cp-testi__bg { position: absolute; inset: 0; z-index: -2; }
.cp-testi__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.cp-quote {
  background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius); padding: 2rem 1.8rem;
  position: relative;
}
.cp-quote__mark { font-family: var(--font-disp); font-size: 4rem; line-height: 0.6; color: color-mix(in oklab, var(--cp-accent) 45%, #fff); }
.cp-quote p { font-style: italic; margin: 0.6rem 0 1.4rem; color: var(--cp-text); }
.cp-quote__who { font-family: var(--font-mono); font-size: 0.78rem; color: var(--cp-muted); letter-spacing: 0.08em; }

/* ============================================================
   TIMELINE (沿革) — about
   ============================================================ */
.cp-timeline { position: relative; margin-top: 1rem; }
.cp-timeline__item { display: grid; grid-template-columns: 96px 1fr; gap: 1.5rem; padding-bottom: 2rem; position: relative; }
.cp-timeline__item::before {
  content: ""; position: absolute; left: 47px; top: 0.6rem; bottom: -0.4rem; width: 2px; background: var(--cp-line);
}
.cp-timeline__item:last-child::before { display: none; }
.cp-timeline__year { font-family: var(--font-disp); font-weight: 700; font-size: 1.6rem; color: var(--cp-primary); position: relative; }
.cp-timeline__year::after {
  content: ""; position: absolute; right: -25px; top: 0.7rem; width: 12px; height: 12px; border-radius: 50%;
  background: var(--cp-accent); border: 3px solid #fff; box-shadow: 0 0 0 1px var(--cp-line);
}
.cp-timeline__body h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.4rem; }
.cp-timeline__body p { color: var(--cp-muted); font-size: 0.94rem; }

/* ============================================================
   PRICE
   ============================================================ */
.cp-price__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.cp-price__card { background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius); padding: 2rem 1.8rem; text-align: center; }
.cp-price__card--feature { border-color: var(--cp-primary); border-width: 1.5px; position: relative; }
.cp-price__ribbon {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--cp-accent);
  color: #fff; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.16em; padding: 0.3rem 0.9rem; border-radius: 20px;
}
.cp-price__name { font-weight: 600; font-size: 1.1rem; margin-bottom: 0.8rem; }
.cp-price__amount { font-family: var(--font-disp); font-weight: 700; font-size: clamp(2rem, 4vw, 2.8rem); color: var(--cp-primary); line-height: 1; }
.cp-price__amount small { font-family: var(--font-mono); font-size: 0.85rem; color: var(--cp-muted); }
.cp-price__note { color: var(--cp-muted); font-size: 0.88rem; margin-top: 0.8rem; }

/* ============================================================
   NEWS LIST (details toggle)
   ============================================================ */
.cp-newslist { display: flex; flex-direction: column; gap: 0.8rem; }
.cp-newslist__item { background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius); overflow: hidden; }
.cp-newslist__item summary {
  cursor: pointer; list-style: none; padding: 1.2rem 1.5rem; display: flex; align-items: center;
  gap: 1.2rem; flex-wrap: wrap; position: relative;
}
.cp-newslist__item summary::-webkit-details-marker { display: none; }
.cp-newslist__item summary::after {
  content: ""; margin-left: auto; width: 20px; height: 20px; flex: 0 0 auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%231E3A8A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center; transition: transform 280ms ease;
}
.cp-newslist__item[open] summary::after { transform: rotate(180deg); }
.cp-newslist__item summary time { font-family: var(--font-mono); font-size: 0.82rem; color: var(--cp-muted); flex: 0 0 auto; }
.cp-newslist__tag {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; padding: 0.2rem 0.6rem;
  border: 1px solid var(--cp-line); border-radius: 3px; color: var(--cp-primary); flex: 0 0 auto;
}
.cp-newslist__title { font-weight: 500; }
.cp-newslist__body { padding: 0 1.5rem 1.4rem; border-top: 1px solid var(--cp-line); }
.cp-newslist__body p { color: var(--cp-muted); padding-top: 1rem; font-size: 0.94rem; }

/* ============================================================
   FAQ (details)
   ============================================================ */
.cp-faq { display: flex; flex-direction: column; gap: 0.8rem; }
.cp-faq__item { background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius); overflow: hidden; }
.cp-faq__item summary {
  cursor: pointer; list-style: none; padding: 1.2rem 1.5rem; display: flex; align-items: center; gap: 0.9rem; font-weight: 600;
}
.cp-faq__item summary::-webkit-details-marker { display: none; }
.cp-faq__item summary::before { content: "Q"; font-family: var(--font-disp); font-weight: 700; color: var(--cp-accent-ink); font-size: 1.3rem; flex: 0 0 auto; }
.cp-faq__item summary::after {
  content: ""; margin-left: auto; width: 20px; height: 20px; flex: 0 0 auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%231E3A8A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center; transition: transform 280ms ease;
}
.cp-faq__item[open] summary::after { transform: rotate(180deg); }
.cp-faq__body { padding: 0 1.5rem 1.4rem 3rem; }
.cp-faq__body p { color: var(--cp-muted); padding-top: 0.6rem; font-size: 0.94rem; }

/* ============================================================
   CTA band
   ============================================================ */
.cp-cta { position: relative; isolation: isolate; overflow: hidden; color: #fff; text-align: center; }
.cp-cta__bg { position: absolute; inset: 0; z-index: -2; }
.cp-cta__bg img { width: 100%; height: 100%; object-fit: cover; }
.cp-cta__overlay { position: absolute; inset: 0; z-index: -1; background: linear-gradient(135deg, rgb(30 58 138 / 94%), rgb(22 45 110 / 90%)); }
.cp-cta h2 { color: #fff; font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 700; }
.cp-cta p { color: #dbeafe; margin: 1rem auto 2rem; max-width: 48ch; }
.cp-cta__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.cp-cta__phone { margin-top: 1.6rem; font-family: var(--font-mono); }
.cp-cta__phone a { font-size: 1.6rem; font-weight: 700; color: #fff; letter-spacing: 0.04em; }
.cp-cta__phone span { display: block; font-size: 0.78rem; color: #cbd5e1; letter-spacing: 0.16em; }

/* ============================================================
   PAGE HERO (中ページ — generator が背景を CSS 変数で配置)
   ============================================================ */
.cp-page-hero { position: relative; isolation: isolate; background: var(--cp-primary); color: #fff; padding-top: max(clamp(3.5rem, 8vw, 6rem), calc(var(--cp-header-h) + 1.5rem)); padding-bottom: clamp(3.5rem, 8vw, 6rem); scroll-margin-top: var(--cp-header-h); }
.cp-page-hero__inner { max-width: var(--cp-maxw); margin-inline: auto; padding-inline: var(--cp-pad); }
.cp-page-hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 700; letter-spacing: 0.03em; }
.cp-page-hero p { color: #dbeafe; margin-top: 0.8rem; }
.cp-page-hero__crumb { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; color: #cffafe; margin-bottom: 1rem; }
.cp-page-hero__crumb a { text-decoration: underline; }

/* ============================================================
   ABOUT intro / generic prose
   ============================================================ */
.cp-split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.cp-split--rev .cp-split__media { order: -1; }
.cp-split__media img { width: 100%; border-radius: var(--cp-radius); aspect-ratio: 4/3; object-fit: cover; }
.cp-prose p { margin-bottom: 1.1rem; }
.cp-prose p:last-child { margin-bottom: 0; }
.cp-checklist { margin-top: 1.4rem; display: grid; gap: 0.7rem; }
.cp-checklist li { display: flex; gap: 0.7rem; align-items: flex-start; }
.cp-checklist svg { width: 22px; height: 22px; color: var(--cp-accent); flex: 0 0 auto; margin-top: 2px; }

/* decorative section bg image (D2) */
.cp-bgimg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -1; }

/* ============================================================
   CONTACT
   ============================================================ */
.cp-contact__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 3.5rem); align-items: start; }
.cp-form { display: grid; gap: 1.2rem; }
.cp-field { display: grid; gap: 0.4rem; }
.cp-field label { font-weight: 600; font-size: 0.9rem; }
.cp-field .req { color: #dc2626; font-size: 0.8rem; margin-left: 0.3rem; }
.cp-field input, .cp-field select, .cp-field textarea {
  font: inherit; padding: 0.8rem 0.9rem; border: 1px solid var(--cp-line); border-radius: var(--cp-radius-btn);
  background: #fff; color: var(--cp-text); width: 100%; transition: border-color 180ms ease, box-shadow 180ms ease;
}
.cp-field input:focus, .cp-field select:focus, .cp-field textarea:focus {
  outline: none; border-color: var(--cp-primary); box-shadow: 0 0 0 3px color-mix(in oklab, var(--cp-primary) 18%, transparent);
}
.cp-field textarea { min-height: 150px; resize: vertical; }
.cp-check { display: flex; gap: 0.6rem; align-items: flex-start; font-size: 0.9rem; }
.cp-check input { width: auto; margin-top: 5px; }
.cp-check a { color: var(--cp-primary); text-decoration: underline; }
.cp-status { font-size: 0.92rem; font-weight: 600; }
#contact-otp-block { background: color-mix(in oklab, var(--cp-accent) 6%, #fff); border: 1px solid var(--cp-line); border-radius: var(--cp-radius); padding: 1.1rem 1.2rem; }
#contact-otp-block p { font-size: 0.82rem; color: var(--cp-muted); margin-top: 0.5rem; }

.cp-info { background: #fff; border: 1px solid var(--cp-line); border-radius: var(--cp-radius); padding: 1.8rem; }
.cp-info__row { display: flex; gap: 0.9rem; padding: 1rem 0; border-bottom: 1px solid var(--cp-line); }
.cp-info__row:last-of-type { border-bottom: 0; }
.cp-info__icon { color: var(--cp-primary); flex: 0 0 auto; }
.cp-info__icon svg { width: 22px; height: 22px; }
.cp-info__label { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cp-muted); }
.cp-info__val { font-weight: 500; font-size: 0.96rem; }
.cp-info__val a { color: var(--cp-primary); text-decoration: underline; }

.cp-map { border-radius: var(--cp-radius); overflow: hidden; border: 1px solid var(--cp-line); margin-top: 1.5rem; }
.cp-map iframe { display: block; width: 100%; height: 420px; border: 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.cp-footer { position: relative; isolation: isolate; background: #0b1530; color: #cbd5e1; overflow: hidden; }
.cp-footer__particles { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.cp-footer__inner { position: relative; z-index: 1; max-width: var(--cp-maxw); margin-inline: auto; padding: clamp(3rem, 6vw, 4.5rem) var(--cp-pad) 1.5rem; }
.cp-footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; }
.cp-footer__brand { display: flex; gap: 0.8rem; align-items: center; margin-bottom: 1rem; }
.cp-footer__brand img { width: 44px; height: 44px; }
.cp-footer__brand b { color: #fff; font-size: 1.05rem; }
.cp-footer__desc { font-size: 0.88rem; line-height: 1.9; max-width: 36ch; }
.cp-footer__col h3, .cp-footer__col h4 { color: #fff; font-size: 0.78rem; font-family: var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 1rem; }
.cp-footer__col a, .cp-footer__col p { display: block; font-size: 0.9rem; padding: 0.3rem 0; transition: color 180ms ease; }
.cp-footer__col a:hover { color: var(--cp-accent); }
.cp-footer__bottom {
  margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: 0.8rem; color: #94a3b8;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 90; width: 48px; height: 48px; border-radius: 50%;
  background: var(--cp-accent); color: #fff; border: none; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--cp-shadow-card); opacity: 0; transform: translateY(12px); transition: opacity 300ms ease, transform 300ms ease;
}
.back-to-top svg { width: 22px; height: 22px; }
.back-to-top:not([hidden]) { opacity: 1; transform: translateY(0); }
.back-to-top[hidden] { display: flex; opacity: 0; pointer-events: none; }

/* ============================================================
   SCROLL FADE-IN (opacity 1 維持)
   ============================================================ */
.fade-in { opacity: 1; transform: none; transition: transform 600ms ease-out; }
html.js-enabled .fade-in:not(.is-in) { transform: translateY(8px); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .cp-footer__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .cp-feature__grid { grid-template-columns: repeat(2, 1fr); }
  .cp-stats__grid { grid-template-columns: repeat(2, 1fr); gap: 2.5rem 1.5rem; }
  .cp-services__grid { grid-template-columns: 1fr; }
  .cp-message__split { grid-template-columns: 1fr; }
  .cp-message__figure { max-width: 380px; }
  .cp-testi__grid { grid-template-columns: 1fr; }
  .cp-split { grid-template-columns: 1fr; }
  .cp-split--rev .cp-split__media { order: 0; }
  .cp-contact__grid { grid-template-columns: 1fr; }
  .cp-price__grid { grid-template-columns: 1fr; }
  .cp-quick__grid { grid-template-columns: 1fr; }
  .cp-quick__item + .cp-quick__item { border-left: 0; border-top: 1px solid var(--cp-line); }
}
@media (max-width: 768px) {
  .cp-newsband__inner { grid-template-columns: 1fr; gap: 1rem; }
  .cp-newsband__more { justify-self: start; }
  .cp-footer__top { grid-template-columns: 1fr; gap: 2rem; }
}

/* Tab: nav 横並び維持 / CTA 表示 (561-768) */
@media (max-width: 560px) {
  :root { --cp-section-y: 4rem; }
  .cp-header__inner { padding-inline: 1.25rem; }
  .cp-nav, .cp-header__cta { display: none; }
  .cp-burger { display: flex; }
  .cp-brand__logo { width: 40px; height: 40px; }
  .cp-brand__name { font-size: 0.82rem; letter-spacing: 0.02em; }
  .cp-brand__sub { font-size: 0.42rem; }
  .cp-hero { min-height: 78vh; }
  .cp-hero h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
  .cp-feature__grid { grid-template-columns: 1fr; }
  .cp-stats__grid { grid-template-columns: repeat(2, 1fr); }
  .cp-section, .cp-page-hero { padding-inline: 0; }
  .cp-container { padding-inline: 1.25rem; }
  .cp-map iframe { height: 280px; }
  .cp-message__badge { left: 0; }
  .cp-footer__bottom { flex-direction: column; }
  .back-to-top { right: 1rem; bottom: 1rem; }
}

/* ============================================================
   prefers-reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ai-hp enforced subpage hero backgrounds */
.aihp-subpage-hero--with-image {
  position: relative;
  background-image:
    linear-gradient(135deg, rgba(8, 24, 61, 0.86), rgba(8, 24, 61, 0.58)),
    var(--aihp-subpage-hero-image) !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  overflow: hidden;
  isolation: isolate;
}
.aihp-subpage-hero--with-image > * {
  position: relative;
  z-index: 1;
}