:root {
  --navy: #1c2b5a;
  --navy-deep: #12204a;
  --navy-ink: #1a2333;
  --ink2: #4a5468;
  --gold: #c9a24b;
  --gold-light: #e8c97a;
  --gold-pale: #f7efdc;
  --line-green: #06c755;
  --bg-soft: #f5f7fc;
  --line-border: #e3e8f2;
  --radius: 18px;
  --font:
    'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  color: var(--navy-ink);
  background: #fff;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-border);
}
.site-header__inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.site-header__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.site-header__brand img {
  width: 34px;
  height: 34px;
}
.site-header__name {
  font-size: 19px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: 0.02em;
}
.site-header__cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--navy);
  transition: opacity 0.2s;
}
.site-header__cta:hover {
  opacity: 0.85;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(
      1200px 600px at 80% -10%,
      #eef2fb 0%,
      rgba(238, 242, 251, 0) 60%
    ),
    linear-gradient(180deg, #fff 0%, #f6f8fd 100%);
  overflow: hidden;
}
.hero__inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 46px 20px 120px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 24px;
  align-items: center;
}
.hero__catch {
  font-size: clamp(32px, 4.8vw, 42px);
  font-weight: 900;
  color: var(--navy-ink);
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}
.hero__catch em {
  font-style: normal;
  color: var(--gold);
}
.hero__lead {
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-ink);
  line-height: 1.75;
  margin-bottom: 26px;
  max-width: 30em;
}
.hero__lead em {
  font-style: normal;
  font-weight: 900;
  color: var(--navy-deep);
  display: inline-block;
  background: linear-gradient(
    110deg,
    var(--gold) 0%,
    var(--gold-light) 45%,
    #f8e7b3 50%,
    var(--gold-light) 55%,
    var(--gold) 100%
  );
  background-size: 220% 100%;
  border-radius: 7px;
  padding: 1px 9px 2px;
  margin: 0 3px;
  box-shadow: 0 2px 8px rgba(201, 162, 75, 0.35);
  animation: badge-shine 3.2s ease-in-out infinite;
}
@keyframes badge-shine {
  0%,
  100% {
    background-position: 0% 0;
  }
  50% {
    background-position: 100% 0;
  }
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: #fff;
  text-decoration: none;
  font-size: 17.5px;
  font-weight: 900;
  letter-spacing: 0.04em;
  padding: 17px 40px;
  border-radius: 999px;
  box-shadow:
    0 10px 26px rgba(18, 32, 74, 0.28),
    inset 0 0 0 2px var(--gold-light);
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 14px 30px rgba(18, 32, 74, 0.34),
    inset 0 0 0 2px var(--gold-light);
}
.cta-btn .line-ico {
  width: 22px;
  height: 22px;
  flex: none;
}
.cta-btn--line {
  background: var(--line-green);
  box-shadow: 0 10px 26px rgba(6, 199, 85, 0.32);
}
.cta-btn--line:hover {
  box-shadow: 0 14px 30px rgba(6, 199, 85, 0.4);
}
.hero__cta-note {
  font-size: 12px;
  color: var(--ink2);
  margin-top: 12px;
}

/* FV feature chips */
.hero__features {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
  padding: 0;
}
.hero__features li {
  display: flex;
  align-items: center;
  gap: 9px;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(
        135deg,
        var(--gold) 0%,
        var(--gold-light) 45%,
        #f8e7b3 55%,
        var(--gold) 100%
      )
      border-box;
  border: 1.5px solid transparent;
  border-radius: 999px;
  padding: 7px 17px 7px 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  box-shadow: 0 4px 14px rgba(201, 162, 75, 0.22);
}
.hero__feature-ico {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  flex: none;
  background: linear-gradient(
    110deg,
    var(--gold) 0%,
    var(--gold-light) 45%,
    #f8e7b3 50%,
    var(--gold-light) 55%,
    var(--gold) 100%
  );
  background-size: 220% 100%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.4),
    0 2px 6px rgba(201, 162, 75, 0.4);
  animation: badge-shine 3.2s ease-in-out infinite;
}
.hero__feature-ico svg {
  width: 16px;
  height: 16px;
}

/* mascot animation */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 340px;
}
.mascot-stage {
  position: relative;
  width: min(340px, 78vw);
  perspective: 700px;
}
.mascot-stage__img {
  width: 100%;
  animation: mascot-bob 3.4s ease-in-out infinite;
  transform-style: preserve-3d;
  will-change: transform;
  filter: drop-shadow(0 18px 22px rgba(18, 32, 74, 0.18));
}
.mascot-stage__shadow {
  position: absolute;
  left: 50%;
  bottom: -14px;
  transform: translateX(-50%);
  width: 55%;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(
    closest-side,
    rgba(18, 32, 74, 0.22),
    rgba(18, 32, 74, 0)
  );
  animation: shadow-pulse 3.4s ease-in-out infinite;
}
@keyframes mascot-bob {
  0%,
  100% {
    transform: translateY(0) rotateZ(-1.2deg);
  }
  50% {
    transform: translateY(-16px) rotateZ(1.2deg);
  }
}
@keyframes shadow-pulse {
  0%,
  100% {
    transform: translateX(-50%) scale(1);
    opacity: 0.9;
  }
  50% {
    transform: translateX(-50%) scale(0.82);
    opacity: 0.55;
  }
}
.sparkle {
  position: absolute;
  width: 22px;
  height: 22px;
  pointer-events: none;
  animation: twinkle 2.6s ease-in-out infinite;
}
.sparkle svg {
  width: 100%;
  height: 100%;
  fill: var(--gold);
}
.sparkle--1 {
  top: 6%;
  left: -4%;
  animation-delay: 0s;
}
.sparkle--2 {
  top: 20%;
  right: -6%;
  width: 15px;
  height: 15px;
  animation-delay: 0.9s;
}
.sparkle--3 {
  bottom: 24%;
  left: -10%;
  width: 14px;
  height: 14px;
  animation-delay: 1.6s;
}
.sparkle--4 {
  top: -4%;
  right: 22%;
  width: 12px;
  height: 12px;
  animation-delay: 2.1s;
}
@keyframes twinkle {
  0%,
  100% {
    transform: scale(0.55) rotate(0deg);
    opacity: 0.25;
  }
  50% {
    transform: scale(1.15) rotate(24deg);
    opacity: 1;
  }
}
.mascot-stage--inline {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .mascot-stage__img,
  .mascot-stage__shadow,
  .sparkle,
  .hero__lead em,
  .hero__feature-ico {
    animation: none !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* hero bottom wave */
.hero__wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  line-height: 0;
}
.hero__wave svg {
  width: 100%;
  height: 60px;
  display: block;
}

/* ---------- sections ---------- */
section {
  padding: 72px 0;
}
.sec-label {
  display: block;
  text-align: center;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.sec-title {
  text-align: center;
  font-size: clamp(24px, 3.6vw, 32px);
  font-weight: 900;
  color: var(--navy);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
  line-height: 1.5;
}
.sec-lead {
  text-align: center;
  font-size: 14.5px;
  color: var(--ink2);
  max-width: 40em;
  margin: 0 auto 44px;
}

/* steps */
.steps {
  background: #fff;
}
.steps__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.step-card {
  background: var(--bg-soft);
  border: 1px solid var(--line-border);
  border-radius: var(--radius);
  padding: 22px 18px 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}
.step-card__num {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold-light);
  font-size: 18px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  letter-spacing: 0;
}
.step-card__title {
  font-size: 17px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 8px;
}
.step-card__text {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.8;
  text-align: left;
}
.step-card__shot {
  margin-top: 16px;
  width: min(180px, 70%);
  border-radius: 22px;
  border: 5px solid var(--navy);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 20px rgba(18, 32, 74, 0.14);
}
.step-card__shot img {
  width: 100%;
}
.step-card__shot--mascot {
  border: none;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
  width: min(200px, 76%);
}
.step-card__shot--mascot img {
  filter: drop-shadow(0 12px 16px rgba(18, 32, 74, 0.16));
}
.steps__notes {
  margin-top: 30px;
  background: var(--gold-pale);
  border-radius: var(--radius);
  padding: 18px 22px;
  font-size: 12.5px;
  color: var(--ink2);
}
.steps__notes li {
  margin-left: 1.4em;
}

/* items */
.items {
  background: var(--bg-soft);
}
.items__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.item-card {
  background: #fff;
  border: 1px solid var(--line-border);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
}
.item-card__icon {
  font-size: 34px;
  line-height: 1;
  margin-bottom: 10px;
}
.item-card__title {
  font-size: 18px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 8px;
}
.item-card__list {
  font-size: 13.5px;
  color: var(--ink2);
}
.items__ng {
  margin-top: 26px;
  background: #fff;
  border: 1px solid var(--line-border);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.items__ng h3 {
  font-size: 15px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 8px;
}
.items__ng ul {
  font-size: 13px;
  color: var(--ink2);
  margin-left: 1.4em;
}
.items__ng p {
  font-size: 12px;
  color: var(--ink2);
  margin-top: 8px;
}

/* fees */
.fees table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 0 var(--line-border);
}
.fees th,
.fees td {
  padding: 15px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--line-border);
  text-align: left;
}
.fees th {
  width: 34%;
  background: var(--bg-soft);
  color: var(--navy);
  font-weight: 700;
}
.fees td strong {
  color: var(--gold);
  font-weight: 900;
  font-size: 16px;
}
.fees__cancel {
  margin-top: 26px;
  border: 1px solid var(--line-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  background: #fff;
}
.fees__cancel h3 {
  font-size: 15px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 8px;
}
.fees__cancel p {
  font-size: 13.5px;
  color: var(--ink2);
}

/* usage */
.usage {
  background: var(--bg-soft);
}
.usage ul {
  max-width: 720px;
  margin: 0 auto;
}
.usage li {
  list-style: none;
  background: #fff;
  border: 1px solid var(--line-border);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--ink2);
}
.usage li strong {
  color: var(--navy);
  font-weight: 700;
  display: block;
  margin-bottom: 2px;
}

/* faq */
.faq__list {
  max-width: 760px;
  margin: 0 auto;
}
.faq__list details {
  background: #fff;
  border: 1px solid var(--line-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq__list summary {
  cursor: pointer;
  padding: 17px 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  list-style: none;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.faq__list summary::-webkit-details-marker {
  display: none;
}
.faq__list summary::before {
  content: 'Q';
  color: var(--gold);
  font-weight: 900;
  font-size: 17px;
  flex: none;
}
.faq__a {
  padding: 0 20px 18px 49px;
  font-size: 13.5px;
  color: var(--ink2);
}

/* company */
.company {
  background: var(--bg-soft);
}
.company table {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
}
.company th,
.company td {
  padding: 15px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--line-border);
  text-align: left;
  vertical-align: top;
}
.company th {
  width: 32%;
  background: #fbfcff;
  color: var(--navy);
  font-weight: 700;
}
.company td {
  color: var(--ink2);
}

/* bottom cta */
.bottom-cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.bottom-cta__mascot {
  width: 150px;
  margin: 0 auto;
}
.bottom-cta h2 {
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 900;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.bottom-cta p {
  font-size: 14px;
  color: #cfd8ef;
  margin-bottom: 26px;
}
.bottom-cta .cta-btn {
  background: var(--line-green);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
}

/* footer */
.site-footer {
  background: var(--navy-deep);
  color: #aeb9d6;
  padding: 36px 0 110px;
  font-size: 12.5px;
}
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  justify-content: center;
  margin-bottom: 18px;
}
.site-footer__links a {
  color: #dbe3f5;
  text-decoration: none;
}
.site-footer__links a:hover {
  text-decoration: underline;
}
.site-footer__license {
  text-align: center;
  margin-bottom: 10px;
  line-height: 2;
}
.site-footer__copy {
  text-align: center;
  color: #7f8cb0;
}

/* mobile fixed cta */
.fixed-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line-border);
  display: none;
  transform: translateY(110%);
  transition: transform 0.35s ease;
}
.fixed-cta.is-shown {
  transform: translateY(0);
}
.fixed-cta .cta-btn {
  width: 100%;
  padding: 14px 10px;
  font-size: 15.5px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  section {
    padding: 54px 0;
  }
  .hero__inner {
    grid-template-columns: 1fr;
    padding: 30px 20px 96px;
    text-align: center;
  }
  .hero__features {
    justify-content: center;
  }
  .hero__lead {
    margin-left: auto;
    margin-right: auto;
  }
  .hero__visual {
    display: none;
  }
  .hero__inner {
    padding-bottom: 78px;
  }
  .mascot-stage--inline {
    display: block;
    width: min(200px, 52vw);
    margin: 4px auto 16px;
  }
  .steps__grid {
    grid-template-columns: 1fr 1fr;
  }
  .items__grid {
    grid-template-columns: 1fr;
  }
  .fixed-cta {
    display: block;
  }
  .site-header__cta {
    display: none;
  }
}
@media (max-width: 480px) {
  .steps__grid {
    grid-template-columns: 1fr;
  }
  .fees th {
    width: 40%;
  }
  .company th {
    width: 36%;
  }
}