:root {
  --lp-primary: #2563EB;
  --lp-primary-dark: #1E40AF;
  --lp-primary-light: #EEF6FF;

  --lp-cta-blue: #2F6FE4;
  --lp-cta-gradient-start: #3B82F6;
  --lp-cta-gradient-end: #2563EB;

  --lp-success: #10B981;

  --lp-warning: #F59E0B;
  --lp-warning-hover: #EA8A00;

  --lp-text-main: #1F2937;
  --lp-text-sub: #4B5563;
  --lp-text-muted: #6B7280;

  --lp-section-bg: #F8FBFF;
  --lp-white: #FFFFFF;

  --lp-faq-border: #D9E6F5;
  --lp-faq-hover: #F5FAFF;

  --lp-footer-bg: #0F3D91;
  --lp-footer-text: #FFFFFF;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--lp-text-main);
  font-family:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    sans-serif;
}

.lp-page {
  width: 100%;
  overflow-x: hidden;
}

.pc-only {
  display: inline;
}

.lp-section-inner {
  width: min(100%, 1080px);
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================
  Hero
========================= */

.lp-hero {
  width: 100%;
  min-height: 100svh;
  background: linear-gradient(
    135deg,
    #FFFFFF 0%,
    #F3F8FF 55%,
    #D9ECFF 100%
  );
  overflow: hidden;
}

.lp-hero::before {
  content: "";
  position: absolute;
  inset: 0;

  background-image: url("/images/背景3.jpg");
  background-size: 100% 100%;
  background-position: center center;
  background-repeat: no-repeat;

  pointer-events: none;
}

.lp-hero-inner {
  position: relative;
  z-index: 1;

  min-height: 100svh;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 28px 32px 48px;

  display: flex;
  align-items: center;
  padding-top: 90px;
}

.lp-brand {
  position: absolute;
  top: 28px;
  left: 24px;
  z-index: 5;
}

.lp-brand-image {
  width: 220px;
  max-width: 42vw;
  height: auto;
  display: block;
}

.lp-hero-content {
  width: min(100%, 640px);
  margin-left: 110px;
  margin-top: 80px;
}

.lp-hero-heading-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 18px;
}

.lp-hero-mail-icon {
  width: 96px;
  height: auto;
  display: block;
}

.lp-hero-target {
  color: var(--lp-text-main);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
}

.lp-title-image {
  width: min(500px, 45vw);
  max-width: 100%;
}

.lp-title-image img {
  display: block;
  width: 100%;
  height: auto;
}

.lp-hero-title {
  margin: 0 0 22px;

  display: grid;
  gap: 8px;

  color: var(--lp-text-main);
  font-size: clamp(48px, 5.3vw, 78px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0.02em;
}

.lp-hero-title span {
  display: block;
}

.lp-hero-plus strong {
  color: var(--lp-success);
  font-size: 1.15em;
  line-height: 0.8;
}

.lp-hero-lead {
  margin: 0 0 40px;

  color: var(--lp-text-main);
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 800;
  line-height: 1.8;
}

.lp-cta-wrap {
  position: relative;
  width: min(100%, 460px);
}

.lp-cta-label {
  position: absolute;
  top: -18px;
  left: 50%;
  z-index: 2;
  transform: translateX(-50%);

  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-width: 210px;
  padding: 6px 22px;
  border-radius: 999px;

  background: var(--lp-warning);
  color: #fff;

  font-size: 15px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.lp-cta-button,
.lp-bottom-cta-button {
  width: 100%;
  min-height: 72px;
  padding: 14px 28px;
  border-radius: 999px;

  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;

  background: linear-gradient(
    90deg,
    var(--lp-cta-gradient-start),
    var(--lp-cta-gradient-end)
  );
  color: #fff;
  text-decoration: none;

  font-size: 30px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.lp-cta-button:hover,
.lp-bottom-cta-button:hover {
  color: #fff;
  text-decoration: none;
  filter: brightness(1.04);
}

.lp-cta-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  font-size: 40px;
  font-weight: 400;
  line-height: 1;
  transform: translateY(-3px);
}

/* =========================
  About
========================= */

.lp-about {
  padding: 38px 0 36px;
  background: var(--lp-white);
  text-align: center;
}

.lp-section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;

  margin: 0 0 18px;

  color: var(--lp-primary);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.45;
}

.lp-section-title span {
  width: 52px;
  height: 2px;
  background: var(--lp-primary);
}

.lp-about-text {
  margin: 0;

  color: var(--lp-text-main);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.9;
}

/* =========================
  Features
========================= */

.lp-features {
  padding: 34px 0 56px;
  background: var(--lp-section-bg);
}

.lp-feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 256px));
  justify-content: center;
  gap: 0;
}

.lp-feature-card {
  position: relative;
  padding: 0 32px;
  text-align: center;
}

.lp-feature-card + .lp-feature-card {
  border-left: 1px solid var(--lp-faq-border);
}

.lp-feature-icon {
  width: 116px;
  height: 116px;
  margin: 0 auto 18px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 50%;
  background: #fff;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.09);
}

.lp-feature-icon img {
  width: 62px;
  height: auto;
}

.lp-feature-card h3 {
  margin: 0 0 14px;

  color: var(--lp-primary);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.55;
}

.lp-feature-card p {
  margin: 0;

  color: var(--lp-text-main);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.8;
  text-align: left;
}

/* =========================
  Recommend
========================= */

.lp-recommend {
  padding: 58px 0 58px;
  background: var(--lp-white);
}

.lp-recommend-title {
  margin: 0 0 28px;

  text-align: center;
  color: var(--lp-primary);
  font-size: 30px;
  font-weight: 900;
  line-height: 1.45;
}

.lp-recommend-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 256px));
  justify-content: center;
  gap: 18px;
}

.lp-recommend-card {
  padding: 24px 18px 22px;

  border: 1px solid var(--lp-faq-border);
  border-radius: 10px;
  background: #fff;

  text-align: center;
}

.lp-recommend-card img {
  width: 86px;
  height: auto;
  margin-bottom: 14px;
}

.lp-recommend-card h3 {
  margin: 0 0 10px;

  color: var(--lp-primary-dark);
  font-size: 18px;
  font-weight: 900;
}

.lp-recommend-card p {
  margin: 0;

  color: var(--lp-text-main);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.7;
}

/* =========================
  FAQ
========================= */

.lp-faq {
  padding: 44px 0 56px;
  background: var(--lp-section-bg);
}

.lp-faq-list {
  border: 1px solid var(--lp-faq-border);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 6px 20px rgba(30, 64, 175, 0.08);
  overflow: hidden;
}

.lp-faq-item {
  background: #fff;
  border-bottom: 1px solid var(--lp-faq-border);
}

.lp-faq-item:last-child {
  border-bottom: none;
}

.lp-faq-item summary {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 14px;

  padding: 18px 22px;

  list-style: none;
  cursor: pointer;

  color: var(--lp-text-main);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.5;
}

.lp-faq-item summary:hover {
  background: var(--lp-faq-hover);
}

.lp-faq-item summary::-webkit-details-marker {
  display: none;
}

.lp-faq-q {
  width: 30px;
  height: 30px;
  border-radius: 50%;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  background: var(--lp-primary-dark);
  color: #fff;

  font-size: 16px;
  font-weight: 900;
}

.lp-faq-arrow {
  position: relative;
  width: 18px;
  height: 18px;
}

.lp-faq-arrow::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 3px;

  width: 10px;
  height: 10px;

  border-right: 2px solid var(--lp-primary);
  border-bottom: 2px solid var(--lp-primary);

  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.lp-faq-item[open] .lp-faq-arrow::before {
  top: 8px;
  transform: rotate(-135deg);
}

.lp-faq-answer {
  padding: 0 22px 18px 68px;

  color: var(--lp-text-sub);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.8;
}

/* =========================
  Bottom CTA
========================= */

.lp-bottom-cta {
  padding: 42px 24px 34px;
  background: var(--lp-primary);
}

.lp-bottom-cta-inner {
  position: relative;

  width: min(100%, 560px);
  margin: 0 auto;
}

.lp-bottom-cta-button {
  border: 2px solid rgba(255, 255, 255, 0.95);
}

/* =========================
  Footer
========================= */

.lp-footer {
  padding: 26px 24px 28px;

  background: var(--lp-footer-bg);
  color: var(--lp-footer-text);
  text-align: center;
}

.lp-footer-inner {
  color: var(--lp-footer-text);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.7;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 100;

  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;

  display: flex;
  align-items: center;
  justify-content: center;

  background: #2563EB;
  color: #fff;

  font-size: 24px;
  font-weight: 900;
  line-height: 1;

  cursor: pointer;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);

  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity 0.2s ease,
    visibility 0.2s ease,
    transform 0.2s ease,
    background 0.2s ease;
}

.back-to-top:hover {
  background: #1E40AF;
}

.back-to-top.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lp-contact-note {
  width: 100%;
  padding: 18px 20px;
  background: #ffffff;
  text-align: center;
  box-sizing: border-box;
}

.lp-contact-note p {
  margin: 0 auto;
  width: min(100%, 960px);

  color: #1F2937;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.8;
  text-align: center;
}

.lp-contact-note a {
  color: #2563EB;
  font-weight: 900;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* =========================
  Responsive
========================= */

@media screen and (max-width: 900px) {
  .lp-hero::before {
    background-image: url("/images/スマホ背景.png");
    background-size: 100% 100%;
    background-position: center top;
    background-repeat: no-repeat;

    pointer-events: none;
  }

  .lp-hero {
    position: relative;
    min-height: 100svh;
    overflow: hidden;
    isolation: isolate;
  }

  .lp-hero::before {
    z-index: 0;
    height: 100%;
  }

  .lp-hero-inner {
    position: relative;
    z-index: 1;
  }

  .lp-about {
    position: relative;
    z-index: 3;
    background: #ffffff;
  }

  .lp-brand {
    top: 18px;
    left: 18px;
  }

  .lp-brand-image {
    width: 170px;
  }

  .lp-hero-content {
    width: min(100%, 320px);
    margin: 0 auto;
    transform: translateY(-40px);

    display: flex;
    flex-direction: column;
    align-items: center;

    text-align: left;
  }

  .lp-hero-heading-row {
    justify-content: flex-start;
    gap: 14px;
  }

  .lp-hero-mail-icon {
    width: 70px;
  }

  .lp-hero-target {
    font-size: 22px;
  }

  .lp-hero-title {
    font-size: 48px;
  }

  .lp-hero-lead {
    font-size: 15px;
  }

  .lp-cta-wrap {
    width: min(100%, 420px);
  }

  .lp-cta-button,
  .lp-bottom-cta-button {
    min-height: 62px;
    font-size: 22px;
  }

  .lp-feature-list,
  .lp-recommend-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .lp-feature-card + .lp-feature-card {
    border-left: none;
  }
}

@media screen and (max-width: 767px) {
  .pc-only {
    display: none;
  }

  .lp-section-inner {
    padding: 0 20px;
  }

  .lp-hero::before {
    background-image: url("/images/スマホ背景.png");
    background-size: 100% 100%;
    background-position: center top;
    background-repeat: no-repeat;

    pointer-events: none;
  }

  .lp-hero {
    position: relative;
    min-height: 100svh;
    overflow: hidden;
    isolation: isolate;
  }

  .lp-title-image {
    width: min(600px, 65vw);
    max-width: 100%;
  }

  .lp-title-image img {
    display: block;
    width: 100%;
    height: auto;
  }

  .lp-hero-inner {
    min-height: 620px;
    align-items: center;
  }

  .lp-brand-image {
    width: 145px;
  }

  .lp-hero-content {
    margin-top: 70px;
    text-align: left;
  }

  .lp-hero-heading-row {
    margin-bottom: 12px;
  }

  .lp-hero-mail-icon {
    width: 58px;
  }

  .lp-hero-target {
    font-size: 20px;
  }

  .lp-hero-title {
    margin-bottom: 18px;
    font-size: 40px;
    line-height: 1.12;
  }

  .lp-hero-lead {
    margin-bottom: 34px;
    font-size: 14px;
    line-height: 1.7;
  }

  .lp-cta-label {
    top: -14px;
    min-width: 180px;
    padding: 5px 18px;
    font-size: 12px;
  }

  .lp-cta-button,
  .lp-bottom-cta-button {
    min-height: 58px;
    padding: 12px 18px;
    font-size: 20px;
  }

  .lp-about {
    padding: 34px 0 32px;
  }

  .lp-section-title {
    gap: 12px;
    font-size: 21px;
  }

  .lp-section-title span {
    width: 32px;
  }

  .lp-about-text {
    font-size: 15px;
    line-height: 1.8;
  }

  .lp-features {
    padding: 30px 0 42px;
  }

  .lp-feature-list,
  .lp-recommend-list {
    grid-template-columns: 1fr;
  }

  .lp-feature-card {
    padding: 24px 16px;
    border-bottom: 1px solid var(--lp-faq-border);
  }

  .lp-feature-card:last-child {
    border-bottom: none;
  }

  .lp-feature-card p {
    text-align: center;
  }

  .lp-recommend {
    padding: 42px 0;
  }

  .lp-recommend-title {
    font-size: 24px;
  }

  .lp-faq {
    padding: 38px 0 46px;
  }

  .lp-faq-item summary {
    grid-template-columns: 28px minmax(0, 1fr) 20px;
    gap: 10px;
    padding: 15px 14px;

    font-size: 14px;
  }

  .lp-faq-q {
    width: 25px;
    height: 25px;
    font-size: 13px;
  }

  .lp-faq-answer {
    padding: 0 14px 16px 52px;
    font-size: 13px;
  }

  .lp-bottom-cta {
    padding: 38px 20px 32px;
  }

  .lp-footer-inner {
    font-size: 10px;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;

    width: 44px;
    height: 44px;

    font-size: 22px;
  }
}

@media screen and (max-width: 767px) {
  .lp-hero-content {
    width: min(100%, 320px);
    margin-left: auto !important;
    margin-right: auto !important;
    align-items: stretch;
  }

  .lp-title-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .lp-title-image img {
    display: block;
    width: 100%;
    height: auto;
  }

  .lp-hero-lead {
    width: 100%;
    max-width: 300px;
    margin: 14px auto 32px;

    text-align: left;
    font-size: 14px;
    line-height: 1.7;
  }
}

/* PC：ロゴと中央画像を少し大きく */
@media screen and (min-width: 768px) {
  .lp-brand-image {
    width: 250px;
    max-width: 45vw;
  }

  .lp-title-image {
    width: min(560px, 52vw);
    max-width: 100%;
  }

  .lp-title-image img {
    display: block;
    width: 100%;
    height: auto;
  }
}