/* ---------- LP ---------- */
.lp { background: var(--paper); scroll-behavior: smooth; }
.wrap { width: min(1160px, 100% - 48px); margin-inline: auto; }
.lp section { scroll-margin-top: 72px; }

/* ナビ */
.lp-nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; gap: 28px; height: 66px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a, .nav-login { color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav-links a:hover, .nav-login:hover { color: var(--ink); text-decoration: underline; }
.nav-actions { display: flex; align-items: center; gap: 20px; }

/* ---------- ファーストビュー：資料の表紙 ---------- */
.cover { padding: 64px 0 96px; position: relative; overflow: hidden; }
.cover-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.cover-line { font-family: var(--font-en); font-size: 17px; color: var(--night-muted); letter-spacing: .01em; }
.cover-en {
  font-family: var(--font-en); font-style: italic; font-weight: 400; color: #b4503f;
  font-size: clamp(64px, 8.4vw, 118px); line-height: .95; letter-spacing: -0.01em; margin: 18px 0 26px -4px;
}
.cover-en.small { font-size: clamp(48px, 6vw, 84px); margin: 0 0 22px -3px; }
.cover h1 { font-size: clamp(30px, 3.4vw, 44px); line-height: 1.5; color: var(--night-ink); font-weight: 400; letter-spacing: .02em; }
.lead { margin-top: 24px; font-size: 15.5px; color: var(--night-muted); max-width: 33em; line-height: 1.95; }
.cover-cta { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn.ghost-light { background: transparent; color: var(--night-ink); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--night-ink) 55%, transparent); }
.btn.ghost-light:hover { background: rgba(255, 255, 255, .06); }
.btn.light:hover { background: #fff; }

/* 回答デモ（このページの見せ場） */
.answer-demo {
  margin: 0; background: var(--surface); color: var(--ink); border-radius: var(--r-md); box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .6);
  padding: 22px 26px 22px; display: flex; flex-direction: column; gap: 16px; position: relative;
}
.answer-demo::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--line); pointer-events: none; border-radius: 2px; }
.ad-tabs { display: flex; gap: 22px; border-bottom: 1px solid var(--line); position: relative; }
.ad-tab { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 500; padding: 4px 0 10px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color .25s, border-color .25s; }
.ad-tab i { width: 8px; height: 8px; border-radius: 1px; opacity: .4; }
.ad-tab.on { color: var(--ink); border-bottom-color: var(--ink); font-weight: 700; }
.ad-tab.on i { opacity: 1; }
.ad-question { font-family: var(--font-jp); font-size: 16px; line-height: 1.7; display: flex; gap: 10px; position: relative; }
.ad-question .q { font-family: var(--font-en); font-style: italic; color: var(--wine); font-size: 22px; line-height: 1.1; }
.ad-answer { font-size: 14.5px; line-height: 1.95; color: var(--ink-2); min-height: 176px; white-space: pre-wrap; position: relative; }
.ad-answer .caret { display: inline-block; width: 2px; height: 1.05em; background: var(--ink); vertical-align: -2px; margin-left: 1px; animation: blink 1s steps(1) infinite; }
.ad-answer mark {
  background: linear-gradient(var(--wine), var(--wine)) no-repeat 0 100% / 0% 2px;
  color: var(--ink); padding: 0 .06em 1px; font-weight: 700;
  animation: sweep .6s .05s cubic-bezier(.3, .7, .3, 1) forwards;
}
.ad-answer mark.pending { animation: none; }
.ad-answer .comp { color: var(--ink); font-weight: 500; }
@keyframes sweep { to { background-size: 100% 2px; color: var(--wine); } }
@keyframes blink { 50% { opacity: 0; } }
.ad-meter { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 12px; color: var(--muted); flex-wrap: wrap; position: relative; }
.ad-bars { display: flex; gap: 16px; }
.ad-bar { display: inline-flex; align-items: center; gap: 6px; }
.ad-bar i { width: 8px; height: 8px; border-radius: 1px; }
.ad-bar b { font-size: 21px; color: var(--ink); min-width: 2.6ch; line-height: 1; }

/* セクション見出し（資料：英字イタリック＋明朝） */
.sec-title { font-size: clamp(26px, 3vw, 38px); letter-spacing: .01em; }
.sec-lead { margin-top: 14px; color: var(--ink-2); font-size: 15.5px; }

/* 背景 */
.why { padding: 112px 0 96px; }
.why-grid { margin-top: 44px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 72px; align-items: start; }
.why-copy { padding-left: 24px; border-left: 1px solid var(--line-strong); }
.why-copy p { color: var(--ink-2); font-size: 15.5px; line-height: 2; max-width: 32em; }
.why-copy p + p { margin-top: 18px; }
.why-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.wv-col { background: var(--sand); padding: 20px; display: flex; flex-direction: column; gap: 9px; min-height: 300px; border-top: 3px solid var(--night); }
.wv-col .caps { font-size: 13px; }
.wv-head { font-family: var(--font-jp); font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.wv-link { height: 9px; background: color-mix(in srgb, var(--ink) 16%, transparent); }
.wv-link:nth-of-type(odd) { width: 78%; }
.wv-line { height: 8px; background: color-mix(in srgb, var(--ink) 12%, transparent); }
.wv-pick { font-family: var(--font-jp); font-size: 15px; font-weight: 700; padding: 8px 12px; background: var(--surface); color: var(--ink); }
.wv-pick.you { background: transparent; outline: 1.5px dashed var(--wine); outline-offset: -1.5px; color: var(--wine); }
.wv-foot { margin-top: auto; font-size: 12px; color: var(--taupe); }

/* しくみ（資料の STEP タイル） */
.how { padding: 104px 0; background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { list-style: none; margin: 44px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.steps li { background: var(--sand); border-top: 3px solid var(--night); padding: 24px 26px 28px; }
.step-no { display: block; font-family: var(--font-en); font-weight: 600; font-size: 19px; color: var(--wine); text-transform: uppercase; letter-spacing: .02em; margin-bottom: 6px; }
.steps h3 { font-size: 19px; margin-bottom: 12px; }
.steps p { color: var(--ink-2); font-size: 14.5px; line-height: 1.9; }
.support { margin-top: 28px; background: var(--surface-2); border-left: 3px solid var(--night); padding: 24px 30px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 6px 40px; align-items: start; }
.support .caps { grid-column: 1; font-size: 14px; }
.support h3 { grid-column: 1; font-size: 20px; line-height: 1.6; }
.support p { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: var(--ink-2); line-height: 1.95; }

/* わかること */
.features { padding: 112px 0; }
.feat-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 72px; align-items: start; }
.feat-list dl { margin: 36px 0 0; display: flex; flex-direction: column; gap: 26px; }
.feat-list dt { font-family: var(--font-jp); font-weight: 700; font-size: 19px; display: flex; flex-direction: column; gap: 2px; }
.feat-list dt .caps { font-family: var(--font-en); font-size: 14px; }
.feat-list dd { margin: 8px 0 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.9; }
.preview { position: sticky; top: 100px; background: var(--surface); border: 1px solid var(--night); box-shadow: var(--shadow-pop); }
.pv-top { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.pv-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.pv-url { margin-left: 10px; font-size: 11px; color: var(--muted); }
.pv-body { padding: 22px; display: flex; flex-direction: column; gap: 18px; }
.pv-kpis { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 10px; align-items: stretch; }
.pv-kpi { border: 1px solid var(--line); padding: 12px 14px; display: flex; flex-direction: column; gap: 2px; }
.pv-kpi span { font-size: 11px; color: var(--muted); }
.pv-kpi b { font-size: 30px; line-height: 1.1; }
.pv-kpi.hero { background: var(--night); color: var(--night-ink); border-color: var(--night); }
.pv-kpi.hero span { color: var(--night-muted); }
.pv-kpi.hero b { font-size: 42px; }
.pv-kpi em { font-style: normal; font-size: 11px; color: #9fd3ae; font-weight: 700; }
.pv-chart { width: 100%; height: 120px; }
.pv-bars { display: flex; flex-direction: column; gap: 7px; font-size: 12px; }
.pv-bars div { display: grid; grid-template-columns: 40px 1fr; align-items: center; gap: 8px; }
.pv-bars i { height: 10px; background: var(--line-strong); }
.pv-bars .you span { color: var(--wine); font-weight: 700; }
.pv-bars .you i { background: var(--night); }

/* FAQ */
.faq { padding: 104px 0; background: var(--surface-2); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 48px; }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list details:first-child { border-top: 1px solid var(--line-strong); }
.faq-list summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font-family: var(--font-jp); font-weight: 700; font-size: 16.5px; position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; position: absolute; right: 8px; top: 50%; width: 9px; height: 9px; border-right: 1.5px solid var(--wine); border-bottom: 1.5px solid var(--wine); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
.faq-list details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq-list details p { padding: 0 0 24px; color: var(--ink-2); line-height: 1.95; max-width: 40em; }

/* お問い合わせ（資料の最終ページ） */
.contact { padding: 104px 0 112px; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 72px; align-items: start; }
.contact-copy h2 { font-size: clamp(26px, 2.8vw, 34px); font-weight: 400; line-height: 1.6; color: var(--night-ink); }
.contact-copy p { margin-top: 20px; color: var(--night-muted); line-height: 1.95; max-width: 30em; }
.contact-copy .contact-mail { font-family: var(--font-en); font-size: 19px; color: var(--night-ink); margin-top: 28px; letter-spacing: .01em; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: var(--surface); color: var(--ink); border-radius: var(--r-md); padding: 30px; }
.contact-form .full { grid-column: 1 / -1; }
.form-foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.contact-done { grid-column: 2; background: var(--surface); color: var(--ink); border-radius: var(--r-md); padding: 44px 30px; }
.contact-done h3 { font-size: 22px; margin-bottom: 8px; }
.contact-done h3::before { content: ""; display: inline-block; width: 16px; height: 9px; border-left: 2px solid var(--good); border-bottom: 2px solid var(--good); transform: rotate(-45deg) translateY(-4px); margin-right: 12px; }

/* フッター（資料のページ下部と同じ） */
.lp-foot { padding: 0 0 28px; background: var(--paper); }
.foot-inner { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; border-top: 1px solid var(--line-strong); padding-top: 22px; margin-top: 0; }
.foot-logo img { width: 146px; height: auto; }
.foot-links { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.foot-links a { color: var(--ink-2); text-decoration: none; font-size: 13px; }
.foot-links a:hover { color: var(--ink); text-decoration: underline; }
.copy { font-family: var(--font-en); font-size: 14px; color: var(--muted); }

/* ---------- スマホ ---------- */
@media (max-width: 920px) {
  .cover-grid, .why-grid, .feat-grid, .faq-grid, .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 44px; }
  .preview { position: static; }
  .contact-done { grid-column: 1; }
  .nav-links { display: none; }
  .nav-actions { margin-left: auto; }
  .support { grid-template-columns: 1fr; }
  .support p { grid-column: 1; grid-row: auto; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .cover { padding: 36px 0 64px; }
  .cover-line { font-size: 15px; }
  .cover-en { margin: 10px 0 18px -2px; }
  .lead { font-size: 15px; }
  .cover-cta .btn { flex: 1; padding: 14px 16px; }
  .answer-demo { padding: 18px 18px; }
  .ad-answer { min-height: 230px; }
  .ad-tabs { gap: 14px; }
  .ad-question { font-size: 15px; }
  .ad-answer { font-size: 14px; }
  .why, .how, .features, .faq, .contact { padding: 72px 0; }
  .why-copy { padding-left: 16px; }
  .why-visual { gap: 10px; }
  .wv-col { min-height: 260px; padding: 14px; }
  .steps { grid-template-columns: 1fr; gap: 12px; }
  .support { padding: 20px; }
  .pv-kpis { grid-template-columns: 1fr 1fr; }
  .pv-kpi.hero { grid-column: 1 / -1; }
  .contact-form { grid-template-columns: 1fr; padding: 20px; }
  .nav-login { display: none; }
  .foot-links { margin-left: 0; width: 100%; }
}

/* 補正 */
.contact-copy .cover-en { color: #b4503f; margin: 0 0 22px -3px; max-width: none; }
.step-no { font-variant-numeric: lining-nums; }
.lp-foot { padding: 30px 0; }
.foot-inner { border-top: 0; padding-top: 0; }