:root {
  --bg: #ffffff;
  --bg2: #f6f8fb;
  --text: #0b1220;
  --muted: #5b677a;
  --border: rgba(12, 32, 58, .10);
  --shadow: 0 10px 30px rgba(12, 32, 58, .08);
  --brand: #0b2a4a;
  /* ネイビー */
  --brand2: #0f3b66;
  /* 少し明るいネイビー */
  --accent: #ff7a18;
  /* アクセント（CTA） */
  --cta1: #ff7a18;
  --cta2: #ff9a4c;
  --radius: 18px;
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a {
  color: inherit
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  background: #fff;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  z-index: 9999;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 24px rgba(12, 32, 58, .06);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: 0 8px 18px rgba(11, 42, 74, .20);
}

.brand-name {
  font-size: 16px
}

.nav {
  display: flex;
  gap: 14px;
  margin-left: 10px;
}

.nav-link {
  text-decoration: none;
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 600;
}

.nav-link:hover {
  background: rgba(11, 42, 74, .06);
  color: var(--text)
}

.header-cta {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 14px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 700;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cta1), var(--cta2));
  color: #1a120a;
  box-shadow: 0 10px 20px rgba(255, 122, 24, .22);
}

.btn-primary:hover {
  filter: brightness(.98)
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: #fff;
}

.btn-ghost:hover {
  background: rgba(11, 42, 74, .04)
}

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}

/* .hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 99px;
} */

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.hamburger-icon {
  width: 22px;
  height: 22px;
  color: var(--text);
  display: block;
}

.mobile-menu {
  border-top: 1px solid var(--border);
  background: #fff;
}

.mobile-menu-inner {
  display: grid;
  gap: 10px;
  padding: 14px 0 18px;
}

.mobile-link {
  text-decoration: none;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 700;
}

.mobile-link:hover {
  background: rgba(11, 42, 74, .04)
}

.hero {
  padding: 56px 0 18px;
  background:
    radial-gradient(1200px 500px at 20% 10%, var(--hero-grad-1, rgba(11, 42, 74, .10)), transparent 55%),
    radial-gradient(900px 400px at 80% 20%, var(--hero-grad-2, rgba(255, 122, 24, .12)), transparent 55%),
    linear-gradient(#fff, #fff);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 26px;
  align-items: center;
}

.eyebrow {
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--brand);
  margin: 0 0 10px;
  font-size: 12px;
}

.hero-title {
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.15;
  margin: 0 0 14px;
  letter-spacing: .01em;
}

.quote {
  background: linear-gradient(135deg, var(--quote-grad-1, rgba(11, 42, 74, .16)), var(--quote-grad-2, rgba(255, 122, 24, .16)));
  padding: 0 .2em;
  border-radius: 10px;
}

.hero-lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-weight: 600;
}

.badges {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .9);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  color: var(--brand);
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap
}

.hero-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  display: grid;
  gap: 10px;
  justify-items: end
}

/* Hero real screenshot frame */
.hero-shot {
  width: min(520px, 100%);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(11, 42, 74, .06), rgba(11, 42, 74, .02));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-shot img {
  width: 100%;
  height: auto;
  display: block;
}

.mock {
  width: min(420px, 100%);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(11, 42, 74, .08), rgba(11, 42, 74, .03));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mock-top {
  display: flex;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, .6);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(11, 42, 74, .22)
}

.mock-body {
  padding: 16px;
  display: grid;
  gap: 12px
}

.mock-card {
  height: 72px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .8);
  border: 1px solid var(--border);
}

.mock-row {
  height: 16px;
  border-radius: 999px;
  background: rgba(11, 42, 74, .10);
}

.mock-chart {
  height: 130px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .9), rgba(255, 255, 255, .8)),
    repeating-linear-gradient(90deg, rgba(11, 42, 74, .08) 0 10px, transparent 10px 20px);
}

.mock-caption {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  text-align: right
}

.section {
  padding: 56px 0
}

.section-alt {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border)
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 18px
}

.section-title {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.25;
}

.section-subtitle {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.list-check {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.list-check li {
  padding-left: 32px;
  position: relative;
  color: var(--text);
  font-weight: 650;
}

.list-check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  background: rgba(11, 42, 74, .08);
  border: 1px solid var(--border);
  color: var(--brand);
  font-weight: 900;
}

.callout {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 800;
  color: var(--brand);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  padding: 18px;
  box-shadow: 0 10px 20px rgba(12, 32, 58, .05);
}

.icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  background: rgba(11, 42, 74, .04);
  font-size: 18px;
}

.card-title {
  margin: 12px 0 6px;
  font-size: 18px
}

.card-text {
  margin: 0;
  color: var(--muted);
  font-weight: 600
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.screen {
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(11, 42, 74, .06), rgba(11, 42, 74, .02));
  box-shadow: 0 10px 20px rgba(12, 32, 58, .04);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}

.step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 16px;
  box-shadow: 0 10px 20px rgba(12, 32, 58, .04);
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
}

.step-title {
  margin: 0 0 4px;
  font-size: 18px
}

.step-text {
  margin: 0;
  color: var(--muted);
  font-weight: 600
}

.faq {
  margin-top: 16px;
  display: grid;
  gap: 10px
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  padding: 14px 16px;
  font-weight: 800;
  list-style: none;
}

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

.faq-body {
  padding: 0 16px 14px;
  color: var(--muted);
  font-weight: 600;
}

.cta {
  padding: 60px 0;
  background:
    radial-gradient(1100px 500px at 30% 0%, rgba(255, 122, 24, .18), transparent 55%),
    linear-gradient(135deg, rgba(11, 42, 74, .10), rgba(11, 42, 74, .02));
  border-top: 1px solid var(--border);
}

.cta-inner {
  display: grid;
  gap: 12px
}

.cta-title {
  margin: 0;
  font-size: clamp(22px, 3.0vw, 34px);
  line-height: 1.2;
}

.cta-text {
  margin: 0;
  color: var(--muted);
  font-weight: 650
}

.cta-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px
}

.site-footer {
  padding: 30px 0 34px;
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer-inner {
  display: grid;
  gap: 12px
}

.footer-brand {
  font-weight: 800
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted)
}

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

.footer-links a:hover {
  text-decoration: underline
}

.footer-meta {
  color: var(--muted);
  font-size: 12px
}

.footer-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px
}

.footer-pill {
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 800;
}

.footer-pill-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #fff;
}

/* Responsive */
@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
    justify-items: stretch
  }

  .hero-visual {
    justify-items: start
  }

  .screen-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .cards {
    grid-template-columns: 1fr
  }
}

@media (max-width: 820px) {

  .nav,
  .header-cta {
    display: none
  }

  .hamburger {
    display: inline-flex;
    margin-left: auto
  }

  .header-inner {
    gap: 10px
  }
}

@media (max-width: 520px) {
  .container {
    width: calc(100% - 28px)
  }

  .hero {
    padding-top: 44px
  }

  .screen-grid {
    grid-template-columns: 1fr
  }
}

/* ========== Devices (PC / Smartphone) ========== */

.device-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 28px;
  align-items: start;
  margin-top: 24px;
}

.device-card {
  display: grid;
  gap: 12px;
}

.device-label {
  font-weight: 800;
  color: var(--brand);
  letter-spacing: .02em;
}

.device-frame {
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 14px 28px rgba(12, 32, 58, .10);
  overflow: hidden;
}

/* PC frame */
.pc-frame {
  aspect-ratio: 16 / 10;
}

/* Smartphone frame */
.sp-frame {
  width: 260px;
  aspect-ratio: 9 / 19.5;
  margin-left: 12px;
  border-radius: 32px;
}

/* 共通 */
.device-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.device-caption {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 980px) {
  .device-grid {
    grid-template-columns: 1fr;
  }

  .sp-frame {
    margin-left: 0;
    justify-self: center;
  }
}

@media (max-width: 520px) {
  .sp-only {
    display: inline
  }
}

@media (min-width: 521px) {
  .sp-only {
    display: none
  }
}

/* ===== Carousel base ===== */
.carousel {
  position: relative;
}

.carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  transform: translateX(0);
  transition: transform .45s ease;
}

.carousel-slide {
  flex: 0 0 100%;
  margin: 0;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

/* ★ここが「端が途切れる」対策の本体
   object-fit: cover だとトリミングされるので、containにする */
.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  /* ←切れない */
  object-position: center;
  display: block;
  background: #fff;
}

/* Buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(6px);
  box-shadow: 0 12px 26px rgba(12, 32, 58, .14);
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.carousel-btn.prev {
  left: 10px;
}

.carousel-btn.next {
  right: 10px;
}

/* Dots */
.carousel-dots {
  position: absolute;
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .86);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(11, 42, 74, .22);
}

.carousel-dot.is-active {
  background: rgba(11, 42, 74, .70);
}

/* ===== Device sizes (existingがある場合は上書き) ===== */
.pc-frame {
  aspect-ratio: 16 / 10;
}

/* スマホ枠：余白を足して「端がギリギリ」にならないように */
.sp-frame {
  width: 280px;
  /* 少し広げる */
  aspect-ratio: 9 / 19.5;
  border-radius: 34px;
  padding: 10px;
  /* ★余白追加で端切れ防止 */
  background: linear-gradient(180deg, rgba(11, 42, 74, .05), rgba(11, 42, 74, .01));
}

/* スマホ画像は特に余白が効く */
.sp-frame .carousel-slide img {
  border-radius: 26px;
  /* 内側も丸めると綺麗 */
}

/* モバイル時 */
@media (max-width: 980px) {
  .carousel-btn.prev {
    left: 8px;
  }

  .carousel-btn.next {
    right: 8px;
  }
}

/* ===== HOW TO USE ===== */
.howto-box {
  margin-top: 16px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 20px rgba(12, 32, 58, .04);
}

.howto-head {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 900;
}

.howto-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  font-weight: 650;
}

.howto-list li {
  margin: 6px 0;
}

/* 関連機能セクションは常に2カラム（PC） */
.related-links .cards{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

/* SPは1カラムに戻す */
@media (max-width: 768px){
  .related-links .cards{
    grid-template-columns: 1fr;
  }
}