:root {
  --bg-dark: #04142a;
  --bg-dark-2: #081f3f;
  --bg-light: #f4f6fb;
  --text-main: #112136;
  --text-light: #f7fbff;
  --gold: #d4a54d;
  --gold-soft: #f3d38c;
  --line: #e2e8f0;
  --card: #ffffff;
  --cta-1: #e0b252;
  --cta-2: #b8892d;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-md: 0 20px 40px rgba(2, 10, 26, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-main);
  background: var(--bg-light);
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.65;
}

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

a {
  color: inherit;
}

main {
  overflow: clip;
}

.sp-only {
  display: inline;
}

/* LP-β準拠: header */
.header {
  position: sticky;
  top: 0;
  z-index: 70;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #dbe3ed;
  backdrop-filter: blur(6px);
}

.header__container {
  width: min(100% - 24px, 1180px);
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.header__logo {
  display: inline-flex;
  align-items: center;
}

.header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: "Noto Serif JP", serif;
  text-decoration: none;
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--cta-1), var(--cta-2));
  border: 1px solid #d4a54d;
  box-shadow: inset 0 0 0 1px rgba(248, 226, 169, 0.45);
}

.hero {
  position: relative;
  color: var(--text-light);
}

.hero-gamma {
  background:
    linear-gradient(102deg, rgba(4, 20, 42, 0.96) 0%, rgba(4, 20, 42, 0.92) 56%, rgba(4, 20, 42, 0.52) 100%),
    linear-gradient(180deg, #031126 0%, #07244a 58%, #0b2e59 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background:
    linear-gradient(180deg, rgba(3, 17, 38, 0) 0%, rgba(3, 17, 38, 0.44) 100%),
    linear-gradient(169deg, rgba(255, 255, 255, 0) 57%, rgba(255, 255, 255, 0.1) 58%, rgba(255, 255, 255, 0) 60%);
}

.hero__container {
  width: min(100% - 24px, 1180px);
  margin: 0 auto;
  min-height: calc(100vh - 72px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  padding: 34px 0 46px;
  position: relative;
  z-index: 3;
}

.hero__content {
  max-width: min(640px, 100%);
}

.hero__lead {
  margin: 0;
  color: rgba(239, 246, 255, 0.94);
  font-size: 0.96rem;
  letter-spacing: 0.01em;
}

.hero__headline {
  margin: 16px 0 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2.1rem, 10.4vw, 3.2rem);
  line-height: 1.23;
  letter-spacing: 0.01em;
}

.hero__highlight {
  color: #f0c872;
  text-shadow: 0 0 16px rgba(255, 226, 151, 0.45);
  position: relative;
}

.hero__highlight--keep {
  white-space: nowrap;
}

.hero__highlight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 213, 104, 0.2) 0%, rgba(255, 213, 104, 0.95) 46%, rgba(255, 213, 104, 0.2) 100%);
}

.hero__subheadline {
  margin: 14px 0 0;
  font-size: 1.75rem;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  color: #f3f8ff;
  line-height: 1.4;
}

.hero__action {
  margin-top: 34px;
}

.hero__action--desktop {
  display: none;
}

.hero__action--mobile {
  display: block;
  margin-top: 16px;
}

.hero__supplement {
  margin: 0;
  color: rgba(234, 243, 255, 0.92);
  font-size: clamp(0.68rem, 2.8vw, 0.9rem);
  line-height: 1.6;
  white-space: normal;
  text-align: center;
}

.hero__supplement-chunk {
  white-space: nowrap;
}

.btn-cta {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  text-align: center;
  text-decoration: none;
  font-family: "Noto Serif JP", serif;
  font-weight: 900;
  letter-spacing: 0.01em;
  border-radius: 10px;
  padding: 14px 14px;
  box-shadow: 0 14px 28px rgba(129, 93, 29, 0.33);
}

.btn-cta--primary {
  color: #fff;
  background: linear-gradient(180deg, var(--cta-1), var(--cta-2));
  border: 1px solid #d4a54d;
  box-shadow: inset 0 0 0 1px rgba(248, 226, 169, 0.42), 0 14px 28px rgba(129, 93, 29, 0.33);
}

.hero__visual {
  margin-top: 16px;
  margin-left: -12px;
  margin-right: -12px;
  overflow: hidden;
  border-radius: 14px;
}

.hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
}

.section__title {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.62rem, 6.4vw, 2.45rem);
  line-height: 1.42;
  text-align: center;
}

.strengths {
  background: #f7f8fc;
}

.strengths__container,
.proof__container,
.faq__container,
.cta-final__container,
.footer__container {
  width: min(100% - 24px, 1180px);
  margin: 0 auto;
}

.strengths__container {
  padding: 52px 0;
}

#strengths-title {
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

#strengths-title::after {
  content: "";
  display: block;
  width: 92%;
  height: 2px;
  margin: 4px auto 0;
  background: #d8b56a;
}

.strengths__cards {
  margin-top: 22px;
  display: grid;
  gap: 16px;
}

.strength-card {
  position: relative;
  background: #fff;
  border-radius: 10px;
  color: var(--text-main);
  padding: 36px 20px 20px;
  border: 1px solid #b7c7da;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.strength-card__num {
  position: absolute;
  top: 0;
  left: 0;
  background: linear-gradient(160deg, #112f57 0%, #081d3e 100%);
  color: #f4d48f;
  width: 44px;
  height: 34px;
  border-radius: 0 0 24px 0;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.05rem;
}

.strength-card__title {
  margin: 0;
  padding-right: 66px;
  font-size: 1.22rem;
  line-height: 1.42;
  font-family: "Noto Serif JP", serif;
}

.strength-card__body {
  margin: 8px 0 0;
  font-size: 0.92rem;
  line-height: 1.66;
}

.strength-card strong {
  color: #111827;
  font-weight: 700;
}

.strength-card__detail {
  margin-top: 9px;
}

.strength-card__illus {
  position: absolute;
  object-fit: contain;
}

.strength-card__illus--top {
  top: 10px;
  right: 10px;
  width: 80px;
  height: 60px;
}

.strength-card__illus--bottom {
  width: 80px;
  height: 80px;
  right: 10px;
  bottom: 10px;
}

.translate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.translate-table th,
.translate-table td {
  border: 1px solid #d4deec;
  padding: 5px 6px;
  line-height: 1.38;
}

.translate-table thead th {
  background: #eef2f9;
  font-weight: 700;
}

.mountain-wrap {
  margin-top: 10px;
  padding: 0;
  border: 0;
  background: transparent;
}

.mountain-wrap img {
  width: min(100%, 420px);
  margin: 0 auto;
  display: block;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: 0;
}

.steps-visual {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.steps-visual img {
  width: 68px;
  height: 68px;
  margin: 0 auto;
}

.steps-visual span {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1b3658;
}

.steps-caption {
  margin-top: 6px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  text-align: center;
  font-size: 0.7rem;
  color: #405370;
}

/* proof */
.proof {
  background: #fff;
}

.proof__container {
  padding: 56px 0 52px;
}

.proof__metrics {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.proof-metric {
  border-radius: 24px;
  background: #f6f8fc;
  border: 1px solid #d6ddea;
  text-align: center;
  padding: 24px 16px;
}

.proof-metric__num {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2rem, 11vw, 3.4rem);
  line-height: 1;
}

.proof-metric__num small {
  font-size: 0.42em;
}

.proof-metric__label {
  margin-top: 10px;
  display: block;
  font-size: 0.94rem;
}

.proof__subtitle {
  margin: 30px 0 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.3rem, 6vw, 1.8rem);
  text-align: center;
}

/* LP-β準拠: testimonials */
.testimonials {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.testimonial {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: #ffffff;
  padding: 18px 14px;
}

.testimonial__top {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.testimonial__icon {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: linear-gradient(180deg, #17365f, #0f2342);
  color: #eac57a;
  display: grid;
  place-items: center;
  flex: 0 0 42px;
}

.testimonial__icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.testimonial__name {
  margin: 0;
  font-size: 1.05rem;
}

.testimonial__route {
  margin: 5px 0 0;
  color: #4b5d74;
  font-size: 0.9rem;
}

.testimonial__income {
  margin-top: 12px;
  border: 1px solid #e7edf6;
  background: #f8fbff;
  border-radius: 12px;
  padding: 10px 12px;
}

.testimonial__before {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
}

.testimonial__after {
  margin: 6px 0 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.testimonial__after span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 8px;
  background: #d84700;
  color: #fff;
  font-weight: 800;
  font-size: 0.88rem;
}

.testimonial__after strong {
  font-family: "Noto Serif JP", serif;
  font-size: 1.75rem;
  line-height: 1;
  color: #17253e;
}

.testimonial__after em {
  font-style: normal;
  font-weight: 800;
  color: #cf5f00;
}

.testimonial__quote {
  margin: 12px 0 0;
  font-size: 0.92rem;
  color: #3d4c60;
}

.proof__cta {
  margin: 20px auto 0;
  max-width: 560px;
}

.proof__logos {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.proof__logos li {
  min-height: 64px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.proof__logos img {
  width: 132px;
  height: 38px;
  object-fit: contain;
  object-position: center;
  display: block;
}

.proof__logos img.proof-logo--large {
  width: 176px;
  height: 52px;
}

.faq {
  background: #f7f9ff;
}

.faq__container {
  padding: 56px 0;
}

.faq__item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  margin-top: 12px;
  overflow: hidden;
}

.faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px;
  font-weight: 700;
  position: relative;
  padding-right: 42px;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: #5c6877;
}

.faq__item[open] summary::after {
  content: "−";
}

.faq__item p {
  margin: 0;
  border-top: 1px solid var(--line);
  padding: 14px 16px 16px;
  font-size: 0.95rem;
}

.cta-final {
  color: var(--text-light);
  background:
    radial-gradient(circle at 76% 8%, rgba(212, 165, 77, 0.2), rgba(212, 165, 77, 0) 38%),
    linear-gradient(180deg, #061a37, #031023);
}

.cta-final__container {
  padding: 56px 0 76px;
}

.cta-final__title {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.6rem, 7vw, 2.2rem);
  line-height: 1.48;
}

.cta-final__title-keep {
  white-space: nowrap;
}

.cta-final__lead {
  margin: 16px 0 0;
  color: rgba(242, 248, 255, 0.93);
}

.cta-final__points {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.cta-final__points li {
  position: relative;
  padding-left: 24px;
  margin-top: 8px;
}

.cta-final__points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #f1cc79;
  font-weight: 700;
}

.cta-form {
  margin: 26px auto 0;
  width: min(100%, 760px);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.98);
  padding: 20px 14px;
  color: var(--text-main);
  box-shadow: var(--shadow-md);
}

.form-group + .form-group {
  margin-top: 12px;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.form-note {
  margin: -2px 0 8px;
  font-size: 0.82rem;
  color: #4a5f7b;
  line-height: 1.5;
}

.required {
  display: inline-block;
  margin-left: 4px;
  color: #b30024;
  font-size: 0.8rem;
}

input,
select {
  width: 100%;
  min-height: 48px;
  border: 1px solid #cbd4e0;
  border-radius: 10px;
  background: #fff;
  padding: 10px 12px;
  font-size: 16px;
  font-family: inherit;
}

input:focus,
select:focus {
  outline: none;
  border-color: #184e93;
  box-shadow: 0 0 0 4px rgba(24, 78, 147, 0.2);
}

.form-group--checkbox label {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  font-weight: 500;
}

.form-group--checkbox input {
  width: auto;
  margin-top: 3px;
  min-height: 0;
}

.form-group--checkbox a {
  color: #15468b;
}

.form-error {
  min-height: 1.2em;
  margin: 4px 0 0;
  color: #b00020;
  font-size: 0.85rem;
}

.field-invalid {
  border-color: #b00020;
  background: #fff8f8;
}

.btn-cta--large {
  margin-top: 14px;
  min-height: 58px;
}

.cta-form .btn-cta {
  display: flex;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(1.16rem, 3.8vw, 1.44rem);
  line-height: 1.38;
}

.cta-form__thanks {
  margin: 14px 0 0;
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  font-weight: 700;
  color: #0f5132;
  background: #d1e7dd;
}

/* LP-β準拠: floating cta */
.floating-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 8px;
  background: rgba(3, 16, 35, 0.94);
  border-top: 1px solid rgba(212, 165, 77, 0.22);
}

.btn-floating {
  min-height: 46px;
  display: grid;
  place-items: center;
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.86rem;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
}

.btn-floating--primary {
  color: #fff;
  background: linear-gradient(180deg, var(--cta-1), var(--cta-2));
  border: 1px solid #d4a54d;
  box-shadow: inset 0 0 0 1px rgba(248, 226, 169, 0.42);
}

.btn-floating--line {
  color: #fff;
  background: linear-gradient(180deg, #06b25e, #03753d);
}

/* LP-β準拠: footer */
.footer {
  background: #fff;
  color: #121923;
  padding: 24px 0 calc(100px + env(safe-area-inset-bottom));
  border-top: 1px solid #dbe3ed;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer__copy {
  margin: 0;
  font-size: 0.85rem;
}

.footer__nav {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer__nav a {
  color: #121923;
  text-decoration: none;
}

.footer__nav a:hover {
  text-decoration: underline;
}

@media (min-width: 480px) {
  .hero__container,
  .strengths__container,
  .proof__container,
  .faq__container,
  .cta-final__container,
  .footer__container,
  .header__container {
    width: min(100% - 32px, 1180px);
  }

  .btn-cta {
    width: auto;
    min-width: 356px;
    padding-inline: 24px;
    margin-left: auto;
    margin-right: auto;
  }

  .proof__cta {
    width: 100%;
    min-width: 0;
  }

  .proof__logos {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .hero__visual {
    margin-left: -16px;
    margin-right: -16px;
  }
}

@media (min-width: 768px) {
  .sp-only {
    display: none;
  }

  .header__cta {
    padding-inline: 18px;
    font-size: 0.92rem;
  }

  .hero-gamma {
    background:
      linear-gradient(95deg, rgba(2, 14, 32, 0.7) 0%, rgba(2, 14, 32, 0.56) 33%, rgba(2, 14, 32, 0.22) 57%, rgba(2, 14, 32, 0.06) 100%),
      url("./img/hero-gamma-translate.webp") right center / cover no-repeat;
  }

  .hero__container {
    min-height: calc(100vh - 72px);
    padding: 52px 0 62px;
  }

  .hero__content {
    max-width: 620px;
  }

  .hero__headline {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    line-height: 1.16;
  }

  .hero__subheadline {
    font-size: 2.1rem;
  }

  .hero__action--desktop {
    display: block;
  }

  .hero__action--mobile {
    display: none;
  }

  .hero__visual {
    display: none;
  }

  .hero__action {
    margin-top: 52px;
  }

  .strengths__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    grid-auto-rows: 1fr;
  }

  .proof__metrics,
  .testimonials {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .cta-final__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 26px;
    align-items: start;
  }

  .cta-final__lead {
    text-align: left;
  }

  .cta-form {
    margin-top: 0;
    padding: 28px;
  }

  .footer {
    padding-bottom: 28px;
  }

  .footer__container {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-end;
  }

  .footer__nav {
    display: flex;
    gap: 20px;
    margin: 0;
  }

  .floating-cta {
    display: none;
  }
}

@media (min-width: 1024px) {
  .hero__container,
  .strengths__container,
  .proof__container,
  .faq__container,
  .cta-final__container,
  .footer__container,
  .header__container {
    width: min(100% - 64px, 1180px);
  }

  .hero__container {
    min-height: max(700px, calc(100vh - 72px));
    padding: 56px 0 66px;
  }

  .hero__lead {
    font-size: 1.06rem;
  }

  .hero__subheadline {
    font-size: 2.24rem;
  }

  .hero__supplement {
    font-size: 0.97rem;
  }
}

@media (min-width: 1280px) {
  .hero__container {
    min-height: max(760px, calc(100vh - 72px));
  }
}

@media (max-width: 430px) {
  .hero__headline {
    font-size: clamp(1.58rem, 7.4vw, 2rem);
    line-height: 1.22;
  }

  .hero__subheadline {
    font-size: 1.58rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}