/* =============================================================
   PHP対策ソリューション LP（JIZO）
   analytics.co.jp と同じ白・黒・グレー、丸いボタン、影なし
   文字色と背景色のコントラスト比は、すべて4.5:1以上（WCAG AA）で設計
   ============================================================= */

:root {
  --ink-black: #333333;  /* 白地で12.6:1 */
  --ink-near: #333333;   /* 本文 白地で12.6:1 */
  --ink-mid: #525252;    /* 補足 白地で7.8:1 */
  --ink-on-dark: #d4d4d4;/* 濃いグレー地の補足 #333地で8.5:1 */
  --surface: #ffffff;
  --surface-snow: #fafafa;
  --surface-dark: #333333;
  --border-light: #d4d4d4;
  --border-soft: #e5e5e5;
  --risk: #b91c1c;       /* 白文字で6.5:1／白地の文字で6.5:1 */
  --focus-ring: #2563eb;

  --ff-body: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  --r-pill: 9999px;
  --r-card: 12px;
  --container-w: min(1080px, 100% - 40px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body {
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-near);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
  word-break: auto-phrase; /* 日本語を文節で折り返す（対応ブラウザのみ） */
  padding-bottom: 76px; /* スマホの固定ボタンぶん */
}
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 2px; }
.sp { display: none; }
.container { width: var(--container-w); margin-inline: auto; }
.narrow { max-width: 720px; }

/* ---------- ボタン ---------- */
.pill {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-pill); border: 1px solid transparent;
  font-weight: 700; text-decoration: none; line-height: 1.2;
  padding: 14px 28px; font-size: 16px; cursor: pointer;
  transition: opacity .15s;
}
.pill:hover { opacity: .85; }
.pill-dark { background: var(--ink-black); color: #fff; }               /* 12.6:1 */
.pill-light { background: #fff; color: var(--ink-black); }              /* 12.6:1 */
.pill-sm { padding: 8px 18px; font-size: 14px; }
.pill-lg { padding: 18px 40px; font-size: 18px; }
.pill[disabled] { opacity: .6; cursor: wait; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border-soft);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-mark { font-weight: 800; font-size: 20px; letter-spacing: .08em; color: var(--ink-black); }
.brand-name { font-size: 13px; color: var(--ink-mid); }

/* ---------- ファーストビュー ---------- */
.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--border-soft); }
.eyebrow { font-size: 14px; font-weight: 700; color: var(--ink-mid); letter-spacing: .04em; }
.hero-title {
  margin-top: 12px; font-size: clamp(36px, 7vw, 64px); line-height: 1.25;
  font-weight: 800; color: var(--ink-black); letter-spacing: .02em;
}
.hero-lead { margin-top: 24px; font-size: 18px; max-width: 40em; }
.hero-lead strong { color: var(--ink-black); background: linear-gradient(transparent 62%, #fde68a 62%); }
.hero-cta { margin-top: 36px; }
.hero-note { margin-top: 10px; font-size: 14px; color: var(--ink-mid); }
.hero-badges { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-badges li {
  border: 1px solid var(--border-light); border-radius: var(--r-pill);
  padding: 6px 16px; font-size: 14px; font-weight: 700; color: var(--ink-near);
}

/* ---------- セクション共通 ---------- */
.section { padding: 80px 0; }
.section-snow { background: var(--surface-snow); }
.section-dark { background: var(--surface-dark); color: #fff; }
.section-dark .section-title { color: #fff; }
.section-dark .section-lead { color: var(--ink-on-dark); }
.section-title {
  font-size: clamp(26px, 4.4vw, 36px); line-height: 1.4; font-weight: 800;
  color: var(--ink-black); margin-bottom: 20px;
}
.section-lead { font-size: 17px; max-width: 44em; margin-bottom: 32px; }
.section-small { padding: 48px 0; border-top: 1px solid var(--border-soft); font-size: 14px; color: var(--ink-mid); }
.small-title { font-size: 16px; font-weight: 700; color: var(--ink-near); margin-bottom: 8px; }

/* ② 不安 */
.worry-list { display: grid; gap: 12px; }
.worry-list li {
  background: #fff; border: 1px solid var(--border-soft); border-radius: var(--r-card);
  padding: 18px 20px 18px 52px; position: relative; font-weight: 700; color: var(--ink-black);
}
.worry-list li::before {
  content: "?"; position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; border-radius: 50%; background: var(--ink-black); color: #fff;
  font-size: 14px; line-height: 24px; text-align: center;
}

/* ③ 数字 */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.stat { border: 1px solid var(--border-light); border-radius: var(--r-card); padding: 28px 24px; }
.stat-num { font-size: 48px; font-weight: 800; line-height: 1.1; color: var(--ink-black); }
.stat-num span { font-size: 22px; margin-left: 2px; }
.stat-text { margin-top: 12px; font-size: 15px; }
.stat sup { font-size: 11px; }
.source-list { font-size: 12px; color: var(--ink-mid); display: grid; gap: 4px; }

/* ④ 比較図 */
.compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: start; }
.compare-arrow { align-self: center; }
.compare-label { font-weight: 700; margin-bottom: 12px; color: #fff; }
.layer-list { display: grid; gap: 8px; }
.layer {
  border-radius: 10px; padding: 14px 18px; font-weight: 700;
  background: #262626; color: #fff; border: 1px solid #404040;          /* 15.1:1 */
}
.layer-risk { background: var(--risk); border-color: var(--risk); color: #fff; }   /* 6.5:1 */
.layer-safe { background: #fff; color: var(--ink-black); border-color: #fff; }      /* 21:1 */
.compare-arrow { font-size: 40px; color: #fff; }
.compare-note { margin-top: 12px; font-size: 14px; color: var(--ink-on-dark); }

/* カード */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--r-card); padding: 28px 24px; }
.card-num { font-size: 14px; font-weight: 800; color: var(--ink-mid); }
.card-title { font-size: 19px; font-weight: 800; color: var(--ink-black); line-height: 1.5; margin: 6px 0 10px; }
.check-list { margin-top: 24px; display: grid; gap: 6px; }
.check-list li { padding-left: 28px; position: relative; font-weight: 700; }
.check-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--ink-black); }

/* ⑦ 料金 */
.price-box { border: 2px solid var(--ink-black); border-radius: var(--r-card); padding: 28px; }
.price-caption { font-weight: 700; margin-bottom: 12px; }
.price-table { width: 100%; border-collapse: collapse; }
.price-table th, .price-table td { padding: 16px 0; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.price-table th { text-align: left; font-weight: 700; color: var(--ink-black); }
.price-table th span { display: block; font-weight: 400; font-size: 13px; color: var(--ink-mid); }
.price-table td { text-align: right; font-weight: 800; font-size: 20px; white-space: nowrap; padding-left: 16px; color: var(--ink-black); }
.price-table tfoot th, .price-table tfoot td { border-bottom: 0; padding-top: 20px; }
.price-table tfoot td { font-size: 30px; }
.price-sub { margin-top: 8px; font-size: 15px; font-weight: 700; text-align: right; }
.option-grid { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.option { border: 1px solid var(--border-light); border-radius: var(--r-card); padding: 18px 20px; }
.option-name { font-size: 14px; color: var(--ink-mid); font-weight: 700; }
.option-price { font-size: 20px; font-weight: 800; color: var(--ink-black); }
.option-price span { font-size: 13px; font-weight: 400; color: var(--ink-mid); }
.note-list { margin-top: 20px; font-size: 14px; color: var(--ink-mid); display: grid; gap: 4px; }
.note-list li { padding-left: 1em; text-indent: -1em; }
.note-list li::before { content: "・"; }

/* ⑧ 流れ */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.flow li { background: #fff; border: 1px solid var(--border-soft); border-radius: var(--r-card); padding: 24px 20px; }
.flow-step {
  display: inline-block; width: 32px; height: 32px; border-radius: 50%;
  background: var(--ink-black); color: #fff; text-align: center; line-height: 32px; font-weight: 800;
}
.flow-title { margin: 10px 0 6px; font-weight: 800; font-size: 17px; color: var(--ink-black); }
.flow li p:last-child { font-size: 14px; }

/* ⑨ FAQ */
.faq { display: grid; gap: 10px; }
.faq details { border: 1px solid var(--border-light); border-radius: var(--r-card); padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 18px 24px 18px 0; position: relative; list-style: none; color: var(--ink-black); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; position: absolute; right: 0; top: 18px; }
.faq details[open] summary::after { content: "－"; }
.faq details p { padding-bottom: 18px; }

/* ⑩ フォーム */
.conditions { border: 1px solid #525252; border-radius: var(--r-card); padding: 20px 24px; margin-bottom: 32px; }
.conditions-title { font-weight: 700; margin-bottom: 6px; }
.conditions li { padding-left: 1.2em; position: relative; color: var(--ink-on-dark); }
.conditions li::before { content: "・"; position: absolute; left: 0; }
.apply-form { display: grid; gap: 20px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; }
.req, .opt { display: inline-block; margin-left: 8px; font-size: 12px; padding: 1px 8px; border-radius: 4px; vertical-align: 2px; }
.req { background: #fff; color: var(--ink-black); }                    /* 黒地に白 */
.opt { border: 1px solid #a3a3a3; color: var(--ink-on-dark); }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field input[type="url"], .field textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink-black);
  background: #fff; border: 2px solid #fff; border-radius: 10px; padding: 12px 14px;
}
.field input::placeholder { color: #737373; }                            /* 白地で4.7:1 */
.field input:focus, .field textarea:focus { outline: 3px solid #60a5fa; outline-offset: 1px; }
.field [aria-invalid="true"] { border-color: #f87171; }
.field-hint { margin-top: 4px; font-size: 13px; color: var(--ink-on-dark); }
.field-error { margin-top: 4px; font-size: 14px; font-weight: 700; color: #fca5a5; }  /* 黒地で10.6:1 */
.field-error:empty { display: none; }
.field-check label { font-weight: 400; display: flex; gap: 10px; align-items: flex-start; }
.field-check input { width: 20px; height: 20px; margin-top: 5px; flex-shrink: 0; }
.field-check a { color: #fff; }
.form-error { background: #fff; color: var(--risk); font-weight: 700; padding: 12px 16px; border-radius: 10px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.submit { width: 100%; margin-top: 8px; }

/* 送信完了 */
.thanks { padding: 120px 0; }
.thanks p { margin-bottom: 12px; }
.thanks-id strong { font-size: 18px; color: var(--ink-black); }
.thanks-note { font-size: 14px; color: var(--ink-mid); margin-bottom: 32px !important; }

/* ---------- フッター ---------- */
.site-footer { border-top: 1px solid var(--border-soft); padding: 40px 0; font-size: 14px; color: var(--ink-mid); }
.footer-links { display: flex; gap: 20px; margin: 8px 0; }
.footer-copy { font-size: 12px; }

/* ---------- スマホの固定ボタン ---------- */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.96); border-top: 1px solid var(--border-soft);
  display: none;
}
.sticky-cta .pill { width: 100%; }

@media (max-width: 820px) {
  .stat-grid, .card-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .compare { grid-template-columns: 1fr; }
  .compare-arrow { transform: rotate(90deg); justify-self: center; line-height: 1; }
}
@media (max-width: 600px) {
  .sp { display: inline; }
  .hero { padding: 56px 0 48px; }
  .hero-lead { font-size: 16px; }
  .pill-lg { width: 100%; padding: 18px 20px; }
  .section { padding: 56px 0; }
  .flow, .option-grid { grid-template-columns: 1fr; }
  .price-box { padding: 20px 16px; }
  .price-table td { font-size: 17px; }
  .price-table tfoot td { font-size: 24px; }
  .brand-name { display: none; }
  .sticky-cta { display: block; }
}
@media (min-width: 601px) { body { padding-bottom: 0; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.sticky-cta[hidden] { display: none !important; }