/* =====================================================
   Pulse Creative - Deep Marine × Ember
   Signal in Navy — 鋭く、静かに、速い
   ===================================================== */

/* -----------------------------------------------------
   リセット & ベース
   ----------------------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  color: #0B1E3F;
  line-height: 1.8;
  background: #fff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease, opacity 0.25s ease;
}

ul, ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

/* -----------------------------------------------------
   汎用パーツ
   ----------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
}

.section-head {
  text-align: center;
  margin-bottom: 72px;
}

.section-head-left {
  text-align: left;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.35em;
  color: #FF6A1F;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.section-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 900;
  font-size: 2.5rem;
  color: #0B1E3F;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.section-sub-en {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-style: italic;
  font-size: 15px;
  color: #6A7789;
  margin-top: 16px;
  letter-spacing: 0.04em;
}

.section-lead {
  font-size: 16px;
  color: #6A7789;
  line-height: 2;
  margin-top: 24px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* ダークセクション共通上書き */
.dark-section .section-title {
  color: #FFFFFF;
}

.dark-section .section-label {
  color: #FF6A1F;
}

.dark-section .section-lead {
  color: #E9EEF7;
}

.dark-section .section-sub-en {
  color: #A8B3C4;
}

/* CTAボタン */
.btn-primary {
  display: inline-block;
  background: #FF6A1F;
  color: #0B1E3F;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 16px;
  padding: 18px 44px;
  letter-spacing: 0.04em;
  box-shadow: 0 8px 24px rgba(255, 106, 31, 0.28);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  border: 1px solid #FF6A1F;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(255, 106, 31, 0.42);
  background: #FF7D35;
}

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: #FFFFFF;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 16px;
  padding: 18px 44px;
  letter-spacing: 0.04em;
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.btn-ghost:hover {
  transform: translateY(-2px);
  background: #FFFFFF;
  color: #0B1E3F;
}

/* -----------------------------------------------------
   ヘッダー
   ----------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 76px;
  background: transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(11, 30, 63, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #FFFFFF;
}

.logo-text {
  font-family: "Inter", sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.04em;
}

.logo-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #FF6A1F;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 106, 31, 0.7);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.header-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.header-nav-list {
  display: flex;
  gap: 36px;
}

.header-nav-list a {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: #FFFFFF;
  letter-spacing: 0.1em;
  position: relative;
  padding: 6px 0;
}

.header-nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: auto;
  bottom: 0;
  width: 0;
  height: 1px;
  background: #FF6A1F;
  transition: width 0.3s ease;
}

.header-nav-list a:hover::after {
  width: 100%;
}

.header-cta {
  display: inline-block;
  background: #FF6A1F;
  color: #FFFFFF;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  letter-spacing: 0.04em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 106, 31, 0.4);
  background: #FF7D35;
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  position: relative;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: #FFFFFF;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* -----------------------------------------------------
   ヒーロー
   ----------------------------------------------------- */
.hero {
  position: relative;
  min-height: 860px;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: #0B1E3F;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 30, 63, 0.55) 0%, rgba(11, 30, 63, 0.82) 60%, rgba(11, 30, 63, 0.95) 100%),
    linear-gradient(130deg, rgba(51, 102, 255, 0.18) 0%, rgba(11, 30, 63, 0) 50%);
  z-index: 1;
}

.hero-diagonal {
  position: absolute;
  left: -10%;
  bottom: 28%;
  width: 120%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, #FF6A1F 30%, #FF6A1F 70%, transparent 100%);
  transform: rotate(-14deg);
  opacity: 0.6;
  z-index: 2;
}

.hero-portfolio-notice {
  position: absolute;
  top: 96px;
  right: 32px;
  font-size: 10px;
  color: rgba(233, 238, 247, 0.55);
  letter-spacing: 0.04em;
  z-index: 5;
  max-width: 340px;
  text-align: right;
}

.hero-content {
  position: relative;
  z-index: 4;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px 120px;
  color: #FFFFFF;
}

.hero-kicker {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 13px;
  color: #FF6A1F;
  letter-spacing: 0.35em;
  margin-bottom: 28px;
}

.hero-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 900;
  font-size: clamp(2.5rem, 5.2vw, 4.5rem);
  line-height: 1.4;
  letter-spacing: 0.01em;
  margin-bottom: 28px;
  max-width: 780px;
}

.hero-sub-en {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 16px;
  color: #E9EEF7;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
  max-width: 640px;
}

.hero-sub {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 2;
  color: #E9EEF7;
  max-width: 640px;
  margin-bottom: 42px;
}

.hero-cta-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-trust-badge {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 12px;
  color: rgba(168, 179, 196, 0.85);
  letter-spacing: 0.12em;
}

/* 右下大型数値デコ */
.hero-metric-deco {
  position: absolute;
  right: 48px;
  bottom: 160px;
  z-index: 3;
  text-align: right;
  color: rgba(255, 255, 255, 0.08);
  pointer-events: none;
  user-select: none;
}

.hero-metric-value {
  display: block;
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 10rem;
  line-height: 1;
  letter-spacing: -0.03em;
  color: rgba(255, 255, 255, 0.1);
  font-variant-numeric: tabular-nums;
}

.hero-metric-label {
  display: block;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.22);
  letter-spacing: 0.3em;
  margin-top: 12px;
}

.hero-scroll {
  position: absolute;
  left: 48px;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 4;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: #FF6A1F;
  writing-mode: vertical-rl;
}

.hero-scroll-arrow {
  font-size: 14px;
  animation: scroll-arrow 2s ease-in-out infinite;
}

@keyframes scroll-arrow {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(6px); opacity: 0.5; }
}

/* -----------------------------------------------------
   KPIストリップ
   ----------------------------------------------------- */
.kpi-section {
  background: #0B1E3F;
  padding: 144px 0;
  position: relative;
}

.kpi-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255, 106, 31, 0.4);
  border-bottom: 1px solid rgba(255, 106, 31, 0.4);
}

.kpi-item {
  padding: 56px 32px;
  text-align: center;
  border-left: 1px solid rgba(255, 106, 31, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.kpi-item:first-child {
  border-left: none;
}

.kpi-value {
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: clamp(2.8rem, 5vw, 5rem);
  color: #FFFFFF;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.kpi-unit {
  font-size: 0.45em;
  font-weight: 400;
  color: #E9EEF7;
  margin-left: 4px;
}

.kpi-label {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  font-size: 14px;
  color: #A8B3C4;
  letter-spacing: 0.1em;
}

.kpi-note {
  text-align: center;
  margin-top: 32px;
  font-size: 11px;
  color: rgba(168, 179, 196, 0.6);
  letter-spacing: 0.08em;
}

/* -----------------------------------------------------
   SERVICES
   ----------------------------------------------------- */
.services-section {
  background: #F6F7FB;
  padding: 144px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: #FFFFFF;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  box-shadow: 0 2px 14px rgba(11, 30, 63, 0.06);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(11, 30, 63, 0.12);
}

.service-card-image {
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-image img {
  transform: scale(1.03);
}

.service-card-body {
  padding: 36px 32px 40px;
}

.service-card-kicker {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 12px;
  color: #FF6A1F;
  letter-spacing: 0.24em;
  margin-bottom: 14px;
  display: block;
}

.service-card-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  color: #0B1E3F;
  line-height: 1.5;
  margin-bottom: 14px;
}

.service-card-desc {
  font-size: 15px;
  color: #6A7789;
  line-height: 1.9;
}

/* -----------------------------------------------------
   Why Us
   ----------------------------------------------------- */
.reason-section {
  background: #1E4C8A;
  padding: 144px 0;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.reason-card {
  padding: 24px 40px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.reason-card:first-child {
  border-left: none;
}

.reason-number {
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 5rem;
  color: #FF6A1F;
  line-height: 1;
  display: block;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.reason-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  color: #FFFFFF;
  line-height: 1.55;
  margin-bottom: 18px;
}

.reason-desc {
  font-size: 15px;
  line-height: 1.9;
  color: #E9EEF7;
}

/* -----------------------------------------------------
   CASE STUDIES
   ----------------------------------------------------- */
.case-section {
  background: #F6F7FB;
  padding: 144px 0 96px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 72px;
}

.case-card {
  background: #FFFFFF;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  box-shadow: 0 2px 14px rgba(11, 30, 63, 0.06);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(11, 30, 63, 0.12);
}

.case-card-image {
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-card:hover .case-card-image img {
  transform: scale(1.03);
}

.case-card-body {
  padding: 28px 28px 32px;
}

.case-card-tag {
  display: inline-block;
  background: #0B1E3F;
  color: #FF6A1F;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 5px 12px;
  margin-bottom: 14px;
}

.case-card-client {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: #0B1E3F;
  margin-bottom: 16px;
  line-height: 1.55;
}

.case-card-metric {
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 2.5rem;
  color: #FF6A1F;
  line-height: 1;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.case-card-desc {
  font-size: 14px;
  color: #6A7789;
  letter-spacing: 0.04em;
}

.case-logo-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  padding-top: 48px;
  border-top: 1px solid rgba(11, 30, 63, 0.08);
}

.case-logo-list li {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: #6A7789;
  text-align: center;
  letter-spacing: 0.12em;
  opacity: 0.6;
  transition: opacity 0.3s ease, color 0.3s ease;
  filter: grayscale(1);
}

.case-logo-list li:hover {
  opacity: 1;
  color: #0B1E3F;
  filter: grayscale(0);
}

/* -----------------------------------------------------
   VOICE
   ----------------------------------------------------- */
.voice-section {
  background: #F6F7FB;
  padding: 0 0 144px;
  border-top: 1px solid rgba(11, 30, 63, 0.06);
  padding-top: 120px;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.voice-card {
  background: #FFFFFF;
  padding: 40px 32px 32px;
  position: relative;
  box-shadow: 0 2px 14px rgba(11, 30, 63, 0.05);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.voice-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(11, 30, 63, 0.1);
}

.voice-quote {
  position: absolute;
  top: 18px;
  left: 26px;
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 4rem;
  color: #FF6A1F;
  line-height: 1;
}

.voice-text {
  font-size: 15px;
  color: #0B1E3F;
  line-height: 2;
  margin: 36px 0 28px;
  position: relative;
  z-index: 1;
}

.voice-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid rgba(11, 30, 63, 0.08);
}

.voice-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(0.2);
}

.voice-author-company {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: #0B1E3F;
  line-height: 1.5;
}

.voice-author-role {
  font-size: 12px;
  color: #6A7789;
  line-height: 1.5;
}

/* -----------------------------------------------------
   PROCESS
   ----------------------------------------------------- */
.process-section {
  position: relative;
  background: #0B1E3F;
  padding: 144px 0;
  overflow: hidden;
}

.process-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  z-index: 0;
}

.process-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 30, 63, 0.85) 0%, rgba(11, 30, 63, 0.95) 100%);
  z-index: 1;
}

.process-section .container {
  position: relative;
  z-index: 2;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 106, 31, 0.3), rgba(255, 106, 31, 0.8), rgba(255, 106, 31, 0.3));
  z-index: 0;
}

.process-step {
  position: relative;
  padding: 0 16px;
  text-align: left;
  z-index: 1;
}

.process-number {
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 3rem;
  color: #FF6A1F;
  line-height: 1;
  display: block;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  background: #0B1E3F;
  padding-right: 12px;
  display: inline-block;
  position: relative;
}

.process-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: #FFFFFF;
  margin-bottom: 8px;
  line-height: 1.55;
}

.process-period {
  display: inline-block;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 11px;
  color: #FF6A1F;
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}

.process-desc {
  font-size: 13px;
  color: #E9EEF7;
  line-height: 1.85;
}

/* -----------------------------------------------------
   COMPANY
   ----------------------------------------------------- */
.company-section {
  background: #F6F7FB;
  padding: 144px 0;
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: flex-start;
}

.company-message {
  padding-right: 24px;
}

.company-quote {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  line-height: 1.8;
  color: #0B1E3F;
  letter-spacing: 0.01em;
  margin-bottom: 32px;
  position: relative;
  padding-left: 28px;
  border-left: 2px solid #FF6A1F;
}

.company-signature {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: #6A7789;
  padding-left: 28px;
  letter-spacing: 0.06em;
}

.company-table {
  border-top: 1px solid rgba(11, 30, 63, 0.12);
}

.company-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(11, 30, 63, 0.08);
}

.company-row dt {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: #6A7789;
  letter-spacing: 0.08em;
}

.company-row dd {
  font-size: 14px;
  color: #0B1E3F;
  line-height: 1.7;
}

/* -----------------------------------------------------
   FAQ
   ----------------------------------------------------- */
.faq-section {
  background: #1E4C8A;
  padding: 144px 0;
}

.faq-container {
  max-width: 820px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: rgba(11, 30, 63, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.faq-item[open] {
  background: rgba(11, 30, 63, 0.5);
  border-color: rgba(255, 106, 31, 0.3);
}

.faq-item summary {
  list-style: none;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  cursor: pointer;
  color: #FFFFFF;
}

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

.faq-q {
  font-family: "Inter", sans-serif;
  font-weight: 100;
  font-size: 1.5rem;
  color: #FF6A1F;
  line-height: 1;
  flex-shrink: 0;
}

.faq-question {
  flex: 1;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.65;
  color: #FFFFFF;
}

.faq-toggle {
  font-family: "Inter", sans-serif;
  font-weight: 300;
  font-size: 1.5rem;
  color: #FF6A1F;
  line-height: 1;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 28px 24px 66px;
}

.faq-answer p {
  font-size: 14px;
  line-height: 2;
  color: #E9EEF7;
}

/* -----------------------------------------------------
   最終CTA
   ----------------------------------------------------- */
.cta-final-section {
  position: relative;
  padding: 160px 0;
  overflow: hidden;
  background: #0B1E3F;
  text-align: center;
}

.cta-final-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.cta-final-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 30, 63, 0.75) 0%, rgba(11, 30, 63, 0.88) 100%);
  z-index: 1;
}

.cta-final-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.cta-final-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 900;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: #FFFFFF;
  line-height: 1.5;
  margin: 20px 0 28px;
  letter-spacing: 0.02em;
}

.cta-final-sub {
  font-size: 17px;
  color: #E9EEF7;
  line-height: 2;
  margin-bottom: 44px;
}

.cta-final-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* -----------------------------------------------------
   フッター
   ----------------------------------------------------- */
.footer {
  background: #0B1E3F;
  color: #E9EEF7;
  padding: 96px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-logo {
  font-family: "Inter", sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-tagline {
  font-size: 13px;
  color: #A8B3C4;
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-sns {
  display: flex;
  gap: 18px;
}

.footer-sns a {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 13px;
  color: #FFFFFF;
  letter-spacing: 0.14em;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  transition: border-color 0.25s ease, color 0.25s ease;
}

.footer-sns a:hover {
  border-color: #FF6A1F;
  color: #FF6A1F;
}

.footer-col-title {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 12px;
  color: #FF6A1F;
  letter-spacing: 0.24em;
  margin-bottom: 20px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  font-size: 13px;
  color: #E9EEF7;
  transition: color 0.25s ease;
}

.footer-nav a:hover {
  color: #FF6A1F;
}

.footer-divider {
  height: 1px;
  background: rgba(255, 106, 31, 0.4);
  margin-bottom: 32px;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.portfolio-notice-footer {
  text-align: center;
  font-size: 11px;
  color: #A8B3C4;
  padding: 10px 16px;
  border: 1px solid rgba(255, 106, 31, 0.25);
  background: rgba(255, 106, 31, 0.05);
  letter-spacing: 0.04em;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.copyright {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 12px;
  color: #A8B3C4;
  letter-spacing: 0.08em;
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  font-size: 12px;
  color: #A8B3C4;
  transition: color 0.25s ease;
}

.footer-legal a:hover {
  color: #FFFFFF;
}

/* -----------------------------------------------------
   レスポンシブ（1024px以下 タブレット）
   ----------------------------------------------------- */
@media (max-width: 1024px) {
  .header-nav-list {
    gap: 24px;
  }

  .hero-metric-deco {
    display: none;
  }

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

  .reason-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .reason-card {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding: 40px 0;
  }

  .reason-card:first-child {
    border-top: none;
  }

  .case-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .case-logo-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .voice-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Processは縦軸切替 */
  .process-timeline {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .process-timeline::before {
    top: 0;
    bottom: 0;
    left: 24px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(255, 106, 31, 0.3), rgba(255, 106, 31, 0.8), rgba(255, 106, 31, 0.3));
  }

  .process-step {
    padding-left: 72px;
  }

  .process-number {
    position: absolute;
    left: 0;
    top: 0;
    background: transparent;
    padding: 0;
    font-size: 2.25rem;
  }

  .company-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* -----------------------------------------------------
   レスポンシブ（768px以下 モバイル）
   ----------------------------------------------------- */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  /* ヘッダー */
  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(11, 30, 63, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 80px 24px 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.35s ease;
    pointer-events: none;
    z-index: 105;
  }

  .header-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .header-nav-list {
    flex-direction: column;
    gap: 28px;
    text-align: center;
  }

  .header-nav-list a {
    font-size: 16px;
    letter-spacing: 0.2em;
  }

  /* セクション共通 */
  .kpi-section,
  .services-section,
  .reason-section,
  .case-section,
  .process-section,
  .company-section,
  .faq-section {
    padding: 80px 0;
  }

  .voice-section {
    padding: 72px 0 80px;
  }

  .cta-final-section {
    padding: 96px 0;
  }

  .section-head,
  .section-head-left {
    margin-bottom: 48px;
  }

  .section-title {
    font-size: 1.65rem;
  }

  /* ヒーロー */
  .hero {
    min-height: 92vh;
    align-items: flex-end;
  }

  .hero-content {
    padding: 0 20px 88px;
  }

  .hero-kicker {
    font-size: 11px;
    letter-spacing: 0.28em;
    margin-bottom: 20px;
  }

  .hero-title {
    font-size: 2.5rem;
    line-height: 1.35;
    margin-bottom: 22px;
  }

  .hero-sub-en {
    font-size: 14px;
    margin-bottom: 14px;
  }

  .hero-sub {
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 32px;
  }

  .hero-cta-group {
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-ghost {
    width: 100%;
    text-align: center;
    padding: 16px 24px;
  }

  .hero-trust-badge {
    font-size: 10px;
  }

  .hero-portfolio-notice {
    top: 80px;
    right: 20px;
    font-size: 9px;
    max-width: 240px;
  }

  .hero-scroll {
    display: none;
  }

  /* KPI */
  .kpi-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .kpi-item {
    padding: 36px 12px;
  }

  .kpi-item:nth-child(2) {
    border-left: 1px solid rgba(255, 106, 31, 0.25);
  }

  .kpi-item:nth-child(3) {
    border-left: none;
    border-top: 1px solid rgba(255, 106, 31, 0.25);
  }

  .kpi-item:nth-child(4) {
    border-top: 1px solid rgba(255, 106, 31, 0.25);
  }

  .kpi-value {
    font-size: clamp(2.2rem, 10vw, 3.2rem);
  }

  /* SERVICES */
  .service-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-card-body {
    padding: 28px 24px 32px;
  }

  .service-card-title {
    font-size: 1.15rem;
  }

  /* CASE */
  .case-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .case-card-metric {
    font-size: 2rem;
  }

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

  /* VOICE */
  .voice-card {
    padding: 32px 24px 26px;
  }

  .voice-quote {
    font-size: 3rem;
    top: 14px;
    left: 22px;
  }

  /* COMPANY */
  .company-quote {
    font-size: 1.25rem;
    padding-left: 20px;
  }

  .company-signature {
    padding-left: 20px;
  }

  .company-row {
    grid-template-columns: 108px 1fr;
    gap: 12px;
    padding: 14px 0;
  }

  /* FAQ */
  .faq-item summary {
    padding: 18px 20px;
    gap: 12px;
  }

  .faq-question {
    font-size: 14px;
  }

  .faq-q {
    font-size: 1.25rem;
  }

  .faq-answer {
    padding: 0 20px 20px 50px;
  }

  .faq-answer p {
    font-size: 13px;
  }

  /* 最終CTA */
  .cta-final-title {
    font-size: 1.75rem;
  }

  .cta-final-sub {
    font-size: 15px;
    margin-bottom: 32px;
  }

  .cta-final-buttons {
    flex-direction: column;
    gap: 14px;
  }

  .cta-final-buttons .btn-primary,
  .cta-final-buttons .btn-ghost {
    width: 100%;
    text-align: center;
  }

  /* フッター */
  .footer {
    padding: 72px 0 32px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 36px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .footer-legal {
    flex-wrap: wrap;
    gap: 14px;
  }
}

/* ============================================================
   補正CSS — 未定義クラスのフォールバック
============================================================ */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-contact {
  font-weight: 500;
}

.voice-author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}