* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.form-page {
  min-width: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
}

.form-page img {
  max-width: 100%;
  height: auto;
}

.form-page a {
  color: inherit;
}

.form-site-header {
  position: relative;
  z-index: 10;
  width: 100%;
  min-height: 76px;
  padding: 0 var(--layout-gutter);
  background: var(--color-white);
  border-bottom: 1px solid #e8ecef;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.form-brand {
  flex: 0 1 auto;
}

.form-brand a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.form-brand img {
  flex: 0 0 auto;
  width: 50px;
}

.form-brand__text {
  display: block;
  color: var(--color-brand);
  line-height: 1.35;
  white-space: nowrap;
}

.form-brand__name {
  display: block;
  font-family: var(--font-logo);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .03em;
}

.form-brand__tagline {
  display: block;
  margin-top: 2px;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .05em;
}

.form-nav {
  margin-left: auto;
}

.form-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.2vw, 34px);
}

.form-nav a {
  display: inline-block;
  padding: 26px 0 22px;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}

.form-nav a:hover,
.form-nav a:focus-visible {
  border-bottom-color: var(--color-navy);
}

.form-header-actions {
  display: grid;
  width: 192px;
  gap: 2px;
}

.form-nav .form-header-cta {
  display: inline-flex;
  width: 100%;
  min-width: 0;
  min-height: 31px;
  padding: 5px 12px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--color-white) !important;
  font-size: 11px;
  line-height: 1.25;
  text-decoration: none;
}

.form-header-cta--business {
  background: var(--color-gold);
}

.form-header-cta--cpa {
  background: var(--color-navy-deep);
}

.form-button::after,
.form-upload::after,
.form-back::after {
  content: "→";
  font-family: serif;
}

.form-menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px 8px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.form-menu-button span {
  display: block;
  width: 27px;
  height: 2px;
  margin: 6px auto;
  background: var(--color-navy);
  transition: transform var(--transition-standard), opacity var(--transition-standard);
}

.form-hero {
  padding: 70px 24px 56px;
  color: var(--color-white);
  background:
    linear-gradient(110deg, rgba(3, 29, 55, .96), rgba(8, 40, 70, .78)),
    url("../img/group-bg.jpg") center / cover;
  text-align: center;
}

.form-hero__eyebrow {
  margin-bottom: 10px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .24em;
}

.form-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  letter-spacing: .08em;
  line-height: 1.35;
}

.form-hero p:last-child {
  margin-top: 16px;
  font-size: 14px;
}

.cpa-flow {
  padding: 58px var(--layout-gutter) 62px;
  background: var(--color-white);
}

.cpa-flow__inner {
  width: min(var(--layout-reading), 100%);
  margin: 0 auto;
  text-align: center;
}

.cpa-flow__eyebrow {
  color: var(--color-gold);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .24em;
}

.cpa-flow h2 {
  margin-top: 8px;
  color: var(--color-navy-deep);
  font-family: var(--font-heading);
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 500;
  letter-spacing: .05em;
  line-height: 1.5;
}

.cpa-flow__steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 42px;
  margin-top: 42px;
  counter-reset: cpa-flow-step;
}

.cpa-flow__steps li {
  position: relative;
  min-width: 0;
  padding: 26px 18px 24px;
  background: var(--color-paper);
  border-top: 2px solid var(--color-gold);
}

.cpa-flow__steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -33px;
  width: 24px;
  height: 12px;
  background: var(--color-gold);
  clip-path: polygon(0 36%, 64% 36%, 64% 0, 100% 50%, 64% 100%, 64% 64%, 0 64%);
  transform: translateY(-50%);
}

.cpa-flow__number {
  display: block;
  color: var(--color-gold);
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: .14em;
}

.cpa-flow__steps img {
  display: block;
  width: 82px;
  height: 82px;
  margin: 12px auto 16px;
  object-fit: contain;
}

.cpa-flow__steps strong {
  display: block;
  color: var(--color-navy-deep);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.65;
}

.form-main {
  width: min(var(--layout-reading), calc(100% - (var(--layout-gutter) * 2)));
  margin: var(--space-8) auto 88px;
}

.form-intro {
  margin-bottom: 34px;
  text-align: center;
}

.form-intro h2 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 500;
  letter-spacing: .05em;
}

.form-intro p {
  margin-top: 10px;
  color: var(--color-muted);
  font-size: 14px;
}

.form-panel {
  padding: clamp(28px, 5vw, 56px);
  background: var(--color-white);
  box-shadow: var(--shadow-panel);
}

.form-status {
  margin-bottom: 30px;
  padding: 14px 18px;
  color: #665126;
  background: #f7f2e8;
  border-left: 3px solid var(--color-gold);
  font-size: 13px;
}

.form-row + .form-row {
  margin-top: 26px;
}

.form-label {
  display: flex;
  margin-bottom: 9px;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.form-required,
.form-optional {
  display: inline-block;
  padding: 1px 8px;
  color: var(--color-white);
  background: var(--color-navy);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.7;
}

.form-optional {
  color: var(--color-muted);
  background: #e8ecef;
}

.form-control {
  width: 100%;
  min-height: 52px;
  padding: 12px 15px;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid #cbd3da;
  border-radius: 0;
  font: inherit;
}

textarea.form-control {
  min-height: 180px;
  resize: vertical;
}

.form-control:focus {
  border-color: var(--color-gold);
  outline: 2px solid rgba(155, 120, 61, .18);
  outline-offset: 1px;
}

.form-date {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 14px;
}

.form-date label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-date .form-control {
  min-width: 0;
}

.form-hint {
  margin-top: 9px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.7;
}

.form-upload {
  display: inline-flex;
  min-width: 240px;
  min-height: 50px;
  margin-top: 15px;
  padding: 10px 18px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--color-white) !important;
  background: var(--color-navy);
  text-decoration: none;
}

.form-consent {
  margin: 34px 0 22px;
  color: var(--color-muted);
  font-size: 12px;
  text-align: center;
}

.form-consent a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-submit {
  text-align: center;
}

.form-button,
.form-back {
  display: inline-flex;
  width: min(360px, 100%);
  min-height: 58px;
  padding: 14px 22px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--color-white);
  background: var(--color-gold);
  border: 1px solid var(--color-gold);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}

.form-button:hover,
.form-button:focus-visible,
.form-back:hover,
.form-back:focus-visible {
  color: var(--color-gold);
  background: var(--color-white);
}

.form-button:disabled {
  color: #7d8790;
  background: #e4e7e9;
  border-color: #e4e7e9;
  cursor: not-allowed;
}

.form-site-footer {
  padding: 34px 5vw 28px;
  background: var(--color-white);
  border-top: 1px solid #e4e8eb;
}

.form-site-footer__inner {
  width: min(var(--layout-wide), 100%);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.form-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
  font-size: 12px;
}

.form-footer-links a {
  text-decoration: none;
}

.form-copyright {
  margin-top: 10px;
  color: #7d8994;
  font-family: var(--font-en);
  font-size: 10px;
  text-align: right;
}

.policy-main {
  width: min(var(--layout-reading), calc(100% - (var(--layout-gutter) * 2)));
}

.policy-hero p:last-child,
.policy-panel {
  font-family: var(--font-heading);
}

.policy-panel {
  padding: clamp(30px, 5vw, 62px);
  background: var(--color-white);
  box-shadow: var(--shadow-panel);
}

.policy-lead {
  padding-bottom: 28px;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-heading);
  font-size: 17px;
  line-height: 1.9;
}

.policy-content {
  margin-top: 36px;
}

.policy-content > h2,
.policy-contact h2 {
  color: var(--color-navy-deep);
  font-family: var(--font-heading);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: .04em;
  line-height: 1.5;
}

.policy-content > h2::after,
.policy-contact h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin-top: 14px;
  background: var(--color-gold);
}

.policy-content > p {
  margin-top: 24px;
}

.policy-item {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--color-line);
}

.policy-item h3 {
  color: var(--color-navy);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.7;
}

.policy-item p {
  margin-top: 12px;
}

.policy-item ul {
  margin-top: 14px;
}

.policy-item li {
  position: relative;
  padding-left: 20px;
}

.policy-item li + li {
  margin-top: 8px;
}

.policy-item li::before {
  content: "";
  position: absolute;
  top: .78em;
  left: 2px;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  transform: rotate(45deg);
}

.policy-contact {
  margin-top: 44px;
  padding: 30px;
  background: var(--color-paper);
}

.policy-contact p {
  margin-top: 16px;
}

.policy-contact a {
  color: var(--color-navy);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.policy-back {
  margin-top: 40px;
  text-align: center;
}

@media (max-width: 960px) {
  .form-site-header {
    min-height: 68px;
    padding: 0 20px;
  }

  .form-brand img {
    width: 44px;
  }

  .form-brand__name {
    font-size: 14px;
  }

  .form-brand__tagline {
    font-size: 8px;
  }

  .form-nav {
    position: absolute;
    top: 68px;
    right: 0;
    left: 0;
    display: none;
    padding: 20px 24px 28px;
    background: var(--color-white);
    border-top: 1px solid #e4e8eb;
    box-shadow: 0 16px 25px rgba(3, 29, 55, .12);
  }

  .form-nav.is-open {
    display: block;
  }

  .form-nav ul {
    display: block;
  }

  .form-nav li + li {
    border-top: 1px solid #e9ecef;
  }

  .form-nav a {
    display: block;
    padding: 13px 4px;
  }

  .form-nav .form-header-cta {
    min-height: 48px;
    font-size: 13px;
  }

  .form-nav__actions {
    padding-top: 14px;
    border-top: 0 !important;
  }

  .form-header-actions {
    width: 100%;
    gap: 8px;
  }

  .form-menu-button {
    display: block;
  }

  .form-menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .form-menu-button[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .form-menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

@media (max-width: 640px) {
  body.form-page {
    font-size: 15px;
  }

  .form-brand a {
    gap: var(--space-2);
  }

  .form-brand img {
    width: 42px;
  }

  .form-brand__name {
    font-size: clamp(11px, 3.2vw, 14px);
  }

  .form-brand__tagline {
    font-size: clamp(7px, 2.1vw, 9px);
  }

  .form-hero {
    padding: 52px 20px 44px;
  }

  .cpa-flow {
    padding: 42px 14px 46px;
  }

  .cpa-flow h2 {
    font-size: 23px;
  }

  .cpa-flow__steps {
    gap: 24px;
    margin-top: 30px;
  }

  .cpa-flow__steps li {
    padding: 18px 5px 16px;
  }

  .cpa-flow__steps li:not(:last-child)::after {
    right: -20px;
    width: 16px;
    height: 10px;
  }

  .cpa-flow__number {
    font-size: 11px;
  }

  .cpa-flow__steps img {
    width: 48px;
    height: 48px;
    margin: 9px auto 11px;
  }

  .cpa-flow__steps strong {
    font-size: clamp(10px, 3.05vw, 13px);
    line-height: 1.55;
  }

  .form-main {
    width: calc(100% - 28px);
    margin: 38px auto 56px;
  }

  .form-panel {
    padding: 24px 18px 30px;
  }

  .policy-panel {
    padding: 28px 20px 34px;
  }

  .policy-lead {
    font-size: 15px;
  }

  .policy-item h3 {
    font-size: 16px;
  }

  .policy-contact {
    padding: 24px 18px;
  }

  .form-date {
    grid-template-columns: 1fr;
  }

  .form-upload {
    width: 100%;
  }

  .form-site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .form-footer-links {
    justify-content: flex-start;
  }

  .form-copyright {
    text-align: left;
  }
}

/* トップページと共通のヘッダー矢印 */
.form-header-cta::after {
  content: "";
  display: block;
  box-sizing: border-box;
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-right: 3px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform .2s ease;
}

.form-header-cta:is(:hover, :focus-visible)::after {
  transform: translateX(3px) rotate(45deg);
}

@media (prefers-reduced-motion: reduce) {
  .form-header-cta::after {
    transition: none;
    transform: rotate(45deg) !important;
  }
}