/* ===========================================
   青羽税理士事務所 — 架空デモ（AI Atelier 制作）
   コーポレート型サンプル / Jade Green × Warm Grey
   =========================================== */
:root {
  --green: #1E5945;
  --green-deep: #143D2F;
  --green-soft: #3D7A5F;
  --green-pale: #EAF1ED;
  --ink: #20251F;
  --ink-2: #5A6058;
  --ink-3: #8B9088;
  --bg: #F6F4F0;
  --paper: #FFFFFF;
  --line: #E3DFD7;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(30, 89, 69, .08);
  --font-jp: "IBM Plex Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-en: "Manrope", "IBM Plex Sans JP", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-jp);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
  font-size: 15px;
  letter-spacing: .02em;
  text-wrap: pretty;
  word-break: auto-phrase;
  line-break: strict;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { width: min(1080px, 92%); margin-inline: auto; }

/* ---------- header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; width: min(1160px, 94%); margin-inline: auto;
}
.brand { display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.brand-mark {
  font-family: var(--font-en); font-weight: 800; font-size: 18px;
  color: var(--green); letter-spacing: .04em;
}
.brand-jp { font-size: 12.5px; font-weight: 700; color: var(--ink); letter-spacing: .08em; }

.gnav ul { display: flex; gap: 26px; align-items: center; }
.gnav a {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  padding: 6px 2px; position: relative; white-space: nowrap;
}
.gnav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--green); transition: width .25s;
}
.gnav a:hover::after, .gnav a[aria-current="page"]::after { width: 100%; }
.gnav a[aria-current="page"] { color: var(--green); font-weight: 700; }
.gnav .nav-cta {
  background: var(--green); color: #fff; border-radius: 999px;
  padding: 9px 20px; font-weight: 700;
}
.gnav .nav-cta:hover { background: var(--green-deep); }
.gnav .nav-cta::after { display: none; }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; position: relative; z-index: 110;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--ink);
  margin: 5px auto; transition: .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- hero (top) ---------- */
.hero {
  padding: 120px 0 0;
  background: linear-gradient(180deg, #FBFAF7 0%, var(--bg) 100%);
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
}
.hero-copy .en-label {
  font-family: var(--font-en); font-weight: 700; font-size: 12px;
  letter-spacing: .22em; color: var(--green-soft); text-transform: uppercase;
  display: block; margin-bottom: 14px;
}
.hero-copy h1 {
  font-size: clamp(26px, 4.6vw, 44px); font-weight: 700; line-height: 1.45;
  letter-spacing: .04em; text-wrap: balance;
}
.hero-copy h1 em { font-style: normal; color: var(--green); }
.hero-copy .hero-sub {
  margin-top: 18px; color: var(--ink-2); font-size: 14.5px; max-width: 30em;
}
.hero-cta { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; font-weight: 700; font-size: 14px;
  padding: 13px 28px; transition: .25s; white-space: nowrap;
}
.btn-primary { background: var(--green); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--green-deep); transform: translateY(-1px); }
.btn-ghost { border: 1.5px solid var(--green); color: var(--green); background: #fff; }
.btn-ghost:hover { background: var(--green-pale); }
.hero-visual { position: relative; }
.hero-visual img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.hero-note { margin-top: 10px; font-size: 11px; color: var(--ink-3); text-align: right; }

/* ---------- stats band ---------- */
.stats { background: var(--green); color: #fff; margin-top: 64px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  text-align: center; padding: 34px 0 28px;
}
.stat + .stat { border-left: 1px solid rgba(255, 255, 255, .18); }
.stat .num {
  font-family: var(--font-en); font-weight: 800;
  font-size: clamp(30px, 5vw, 44px); line-height: 1.1;
}
.stat .num small { font-size: .45em; font-weight: 700; margin-left: 2px; }
.stat .label { font-size: 12px; opacity: .85; margin-top: 4px; letter-spacing: .08em; }
.stats-foot {
  text-align: right; font-size: 10.5px; opacity: .6; padding-bottom: 12px;
}

/* ---------- sections ---------- */
.section { padding: 72px 0; }
.section-head { margin-bottom: 38px; }
.section-head .en {
  font-family: var(--font-en); font-weight: 800; font-size: 12px;
  letter-spacing: .22em; color: var(--green-soft); text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(21px, 3.4vw, 30px); font-weight: 700; letter-spacing: .05em;
  margin-top: 6px; text-wrap: balance;
}
.section-head .lead { color: var(--ink-2); margin-top: 12px; font-size: 14px; max-width: 36em; }

/* reasons */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px;
}
.card .no {
  font-family: var(--font-en); font-weight: 800; font-size: 13px;
  color: var(--green-soft); letter-spacing: .14em;
}
.card h3 { font-size: 16.5px; margin: 10px 0 8px; letter-spacing: .04em; }
.card p { font-size: 13.5px; color: var(--ink-2); }

/* services digest */
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.svc-item {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; display: flex; flex-direction: column; gap: 8px;
  transition: .25s; position: relative; overflow: hidden;
}
.svc-item::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--green);
  opacity: 0; transition: .25s;
}
.svc-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.svc-item:hover::before { opacity: 1; }
.svc-item .en {
  font-family: var(--font-en); font-weight: 700; font-size: 11px;
  letter-spacing: .18em; color: var(--green-soft); text-transform: uppercase;
}
.svc-item h3 { font-size: 17px; }
.svc-item p { font-size: 13px; color: var(--ink-2); }
.svc-item .more { font-size: 12.5px; font-weight: 700; color: var(--green); margin-top: auto; }

/* price digest */
.price-digest {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  display: grid; grid-template-columns: 1fr 1fr; overflow: hidden;
}
.price-digest .pd-main { padding: 36px 32px; }
.price-digest .pd-main .from { font-size: 13px; color: var(--ink-2); }
.price-digest .pd-main .amount {
  font-family: var(--font-en); font-weight: 800; font-size: clamp(38px, 6vw, 56px);
  color: var(--green); line-height: 1.1;
}
.price-digest .pd-main .amount small { font-size: .35em; font-weight: 700; color: var(--ink-2); }
.price-digest .pd-list { padding: 36px 32px; border-left: 1px solid var(--line); }
.price-digest .pd-list li {
  font-size: 13px; padding: 9px 0; border-bottom: 1px dashed var(--line);
  display: flex; justify-content: space-between; gap: 12px;
}
.price-digest .pd-list li strong { font-family: var(--font-en); color: var(--green); white-space: nowrap; }

/* rep (top) */
.rep { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
.rep img {
  aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius);
  box-shadow: var(--shadow); max-height: 480px; width: 100%;
}
.rep blockquote {
  font-size: clamp(17px, 2.6vw, 22px); font-weight: 700; line-height: 1.8;
  letter-spacing: .04em; text-wrap: balance;
}
.rep .rep-name { margin-top: 16px; font-size: 13px; color: var(--ink-2); }
.rep .rep-name strong { font-size: 15px; color: var(--ink); margin-right: 8px; }

/* cta band */
.cta-band { background: var(--green-deep); color: #fff; text-align: center; padding: 60px 0; }
.cta-band h2 { font-size: clamp(19px, 3vw, 26px); letter-spacing: .06em; text-wrap: balance; }
.cta-band p { font-size: 13.5px; opacity: .85; margin-top: 10px; }
.cta-band .btn-primary { background: #fff; color: var(--green-deep); margin-top: 24px; }
.cta-band .btn-primary:hover { background: var(--green-pale); }

/* ---------- sub page common ---------- */
.page-head {
  padding: 110px 0 46px;
  background: linear-gradient(180deg, #FBFAF7 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.page-head .en {
  font-family: var(--font-en); font-weight: 800; font-size: 12px;
  letter-spacing: .24em; color: var(--green-soft); text-transform: uppercase;
}
.page-head h1 { font-size: clamp(24px, 4vw, 34px); letter-spacing: .06em; margin-top: 6px; }
.page-head .lead { color: var(--ink-2); font-size: 14px; margin-top: 10px; max-width: 38em; }

/* services page */
.worry-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.worry-links a {
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 18px; font-size: 13.5px; font-weight: 500; display: flex; gap: 10px;
  align-items: center; transition: .2s;
}
.worry-links a:hover { border-color: var(--green); color: var(--green); }
.worry-links a::before { content: "→"; color: var(--green); font-weight: 700; }

.svc-detail {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 32px; margin-top: 28px; scroll-margin-top: 90px;
}
.svc-detail .svc-tag {
  font-family: var(--font-en); font-weight: 800; font-size: 11px;
  letter-spacing: .2em; color: var(--green-soft); text-transform: uppercase;
}
.svc-detail h2 { font-size: 21px; margin: 6px 0 14px; letter-spacing: .05em; }
.svc-detail .who {
  background: var(--green-pale); border-radius: 10px; padding: 14px 18px;
  font-size: 13.5px; margin-bottom: 18px;
}
.svc-detail .who strong { color: var(--green); }
.svc-detail h4 {
  font-size: 13px; letter-spacing: .12em; color: var(--green); margin: 18px 0 8px;
}
.svc-detail p { font-size: 14px; color: var(--ink-2); }
.svc-detail .includes { display: flex; flex-wrap: wrap; gap: 8px; }
.svc-detail .includes li {
  background: var(--bg); border: 1px solid var(--line); border-radius: 999px;
  font-size: 12px; padding: 6px 14px;
}
.svc-photo { margin: 24px 0 8px; }
.svc-photo img {
  width: 100%; aspect-ratio: 21 / 9; object-fit: cover; border-radius: 10px;
}

/* price page */
.tabs { display: flex; gap: 8px; margin-bottom: 28px; }
.tab-btn {
  flex: 1; border: 1.5px solid var(--line); background: var(--paper);
  border-radius: 999px; padding: 12px 10px; font-size: 14px; font-weight: 700;
  cursor: pointer; font-family: var(--font-jp); color: var(--ink-2); transition: .2s;
}
.tab-btn[aria-selected="true"] { background: var(--green); border-color: var(--green); color: #fff; }
.tab-panel[hidden] { display: none; }

.table-hint { display: none; font-size: 11.5px; color: var(--ink-3); margin-bottom: 8px; }
@media (max-width: 768px) {
  .table-hint { display: block; }
}
.price-table-wrap {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 8px; overflow-x: auto;
}
table.price-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 520px; }
.price-table th, .price-table td {
  padding: 13px 14px; text-align: center; border-bottom: 1px solid var(--line);
}
.price-table thead th {
  background: var(--green-pale); color: var(--green-deep); font-size: 12px;
  letter-spacing: .06em;
}
.price-table tbody th {
  text-align: left; font-weight: 500; background: #FBFAF7; white-space: nowrap;
}
.price-table td { font-family: var(--font-en); font-weight: 700; color: var(--ink); white-space: nowrap; }
.price-table tr:last-child th, .price-table tr:last-child td { border-bottom: 0; }

.price-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px;
}
.price-card h3 { font-size: 15px; letter-spacing: .04em; }
.price-card .amount {
  font-family: var(--font-en); font-weight: 800; font-size: 26px; color: var(--green);
  margin: 8px 0 6px;
}
.price-card .amount small { font-size: .5em; color: var(--ink-2); font-weight: 700; }
.price-card p { font-size: 12.5px; color: var(--ink-2); }

.includes-box {
  background: var(--green-pale); border-radius: var(--radius); padding: 28px 28px;
}
.includes-box h3 { font-size: 15px; color: var(--green-deep); margin-bottom: 12px; }
.includes-box ul { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; }
.includes-box li { font-size: 13px; padding-left: 22px; position: relative; }
.includes-box li::before {
  content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800;
}
.price-notes { font-size: 11.5px; color: var(--ink-3); margin-top: 22px; line-height: 2; }

/* about page */
.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
.about-grid img {
  aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow);
}
.about-grid h2 { font-size: clamp(19px, 3vw, 25px); line-height: 1.8; letter-spacing: .05em; text-wrap: balance; }
.about-grid .msg { margin-top: 16px; font-size: 14px; color: var(--ink-2); }
.about-grid .sign { margin-top: 20px; font-size: 13px; color: var(--ink-2); }
.about-grid .sign strong { font-size: 16px; color: var(--ink); margin-right: 10px; }

.history { border-left: 2px solid var(--green-pale); margin-left: 6px; }
.history li { padding: 0 0 22px 24px; position: relative; font-size: 14px; }
.history li::before {
  content: ""; position: absolute; left: -7px; top: 7px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--green); border: 3px solid #fff;
}
.history .year {
  font-family: var(--font-en); font-weight: 800; color: var(--green); margin-right: 12px;
}

table.office-table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--paper); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.office-table th, .office-table td { padding: 15px 18px; border-bottom: 1px solid var(--line); text-align: left; }
.office-table th { width: 30%; background: #FBFAF7; font-weight: 700; font-size: 13px; white-space: nowrap; }
.office-table tr:last-child th, .office-table tr:last-child td { border-bottom: 0; }

.photo-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.photo-duo img { aspect-ratio: 3 / 2; object-fit: cover; border-radius: var(--radius); }

/* contact page */
.flow-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.flow-step {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 20px; text-align: center; position: relative;
}
.flow-step .step-no {
  font-family: var(--font-en); font-weight: 800; font-size: 12px; letter-spacing: .16em;
  color: var(--green-soft);
}
.flow-step h3 { font-size: 15px; margin: 8px 0 6px; }
.flow-step p { font-size: 12.5px; color: var(--ink-2); }

.contact-form {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 32px;
}
.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; }
.form-row label .req {
  background: var(--green); color: #fff; font-size: 10px; border-radius: 4px;
  padding: 2px 7px; margin-left: 8px; vertical-align: 1px;
}
.form-row input, .form-row select, .form-row textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-size: 14px; font-family: var(--font-jp); background: #FBFAF7;
  transition: .2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--green); background: #fff;
}
.form-row .err { color: #B4452F; font-size: 12px; margin-top: 5px; display: none; }
.form-row.invalid input, .form-row.invalid select, .form-row.invalid textarea { border-color: #B4452F; }
.form-row.invalid .err { display: block; }
.form-submit { text-align: center; margin-top: 28px; }
.form-submit .btn { border: 0; cursor: pointer; font-family: var(--font-jp); width: min(360px, 100%); }
.form-done {
  display: none; text-align: center; padding: 40px 10px;
}
.form-done.show { display: block; }
.form-done .mark { font-size: 40px; color: var(--green); }
.form-done h3 { font-size: 18px; margin: 10px 0 8px; }
.form-done p { font-size: 13px; color: var(--ink-2); }

.faq-item {
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  margin-bottom: 12px; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 17px 20px; font-size: 14px; font-weight: 700;
  list-style: none; display: flex; gap: 12px; align-items: baseline;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; font-family: var(--font-en); font-weight: 800; color: var(--green); }
.faq-item .a { padding: 0 20px 18px 44px; font-size: 13.5px; color: var(--ink-2); }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #C9CCC5; margin-top: 72px; }
.footer-inner { padding: 44px 0 28px; }
.footer-brand { color: #fff; }
.footer-brand .brand-mark { color: #7FBF9F; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 18px 0 26px; }
.footer-nav a { font-size: 12.5px; opacity: .8; }
.footer-nav a:hover { opacity: 1; color: #fff; }
.footer-meta { font-size: 11.5px; opacity: .65; line-height: 2; }
.demo-note {
  border-top: 1px solid rgba(255, 255, 255, .14); margin-top: 22px; padding-top: 16px;
  font-size: 11px; opacity: .55;
}
.demo-note a { text-decoration: underline; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- mobile ---------- */
@media (max-width: 768px) {
  body { font-size: 14px; }
  .nav-toggle { display: block; }
  /* ドロップダウン式（backdrop-filter付きヘッダー内では position:fixed が
     ヘッダー基準になり全画面オーバーレイが潰れるため absolute で下に展開する） */
  .gnav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #FCFBF8;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 36px rgba(30, 89, 69, .14);
    padding: 10px 0 24px; text-align: center;
    opacity: 0; pointer-events: none; transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease;
  }
  .gnav.open { opacity: 1; pointer-events: auto; transform: none; }
  .gnav ul { flex-direction: column; gap: 0; }
  .gnav li { width: 100%; }
  .gnav a { display: block; font-size: 15px; padding: 14px 0; }
  .gnav a::after { display: none; }
  .gnav .nav-cta { display: inline-block; margin-top: 12px; padding: 12px 40px; }

  .hero { padding-top: 92px; }
  .hero-grid { grid-template-columns: 1fr; gap: 22px; }
  .hero-visual img { aspect-ratio: 16 / 10; }
  .hero-cta .btn { flex: 1; padding: 13px 10px; font-size: 13.5px; }

  .stats { margin-top: 44px; }
  .stats-grid { padding: 24px 0 18px; }
  .stat .label { font-size: 10.5px; }

  .section { padding: 52px 0; }
  .cards-3, .svc-grid, .price-cards, .flow-3 { grid-template-columns: 1fr; gap: 14px; }
  .card, .svc-item { padding: 22px 20px; }

  .price-digest { grid-template-columns: 1fr; }
  .price-digest .pd-list { border-left: 0; border-top: 1px solid var(--line); padding: 24px; }
  .price-digest .pd-main { padding: 28px 24px; }

  .rep, .about-grid { grid-template-columns: 1fr; gap: 22px; }
  .rep img { max-height: none; aspect-ratio: 4 / 5; }

  .worry-links { grid-template-columns: 1fr; }
  .svc-detail { padding: 26px 20px; }
  .includes-box ul { grid-template-columns: 1fr; }
  .photo-duo { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 20px; }
  .page-head { padding: 92px 0 36px; }
}