/*
Theme Name: Strategy Management
Theme URI: https://strategy-management.co.jp
Author: Strategy Management LLC
Author URI: https://strategy-management.co.jp
Description: Strategy Management LLC コーポレートサイト用WordPressテーマ
Version: 1.0.0
License: Private
Text Domain: strategy-management
*/


/* =============================================
   RESET & VARIABLES
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  color: #0d1f4e;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

:root {
  --navy:       #0b1d4a;
  --navy-deep:  #060f28;
  --navy-mid:   #16305e;
  --blue:       #2956d4;
  --blue-lt:    #4a7af0;
  --blue-pale:  #c5d4f7;
  --blue-faint: #edf1fc;
  --gray-bg:    #f3f5fb;
  --gray-line:  #d8dff0;
  --gray-text:  #5a6a8a;
  --white:      #ffffff;
  --max-w:      1200px;
  --ease:       cubic-bezier(.25,.46,.45,.94);
  --ease-out:   cubic-bezier(.16,1,.3,1);
}

/* =============================================
   UTILITY
   ============================================= */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 48px; }

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--navy);
  display: block;
  text-align: center;
  width: 100%;
  margin-bottom: 28px;
  padding-bottom: 14px;
  position: relative;
}
.section-label::before { display: none; }
.section-label::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
}

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
[data-reveal][data-delay="1"] { transition-delay: .1s; }
[data-reveal][data-delay="2"] { transition-delay: .2s; }
[data-reveal][data-delay="3"] { transition-delay: .3s; }
[data-reveal][data-delay="4"] { transition-delay: .4s; }
[data-reveal][data-delay="5"] { transition-delay: .5s; }

/* =============================================
   HEADER
   ============================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 900;
  padding: 20px 0;
  background: transparent;           /* ファーストビューは透明 */
  transition: padding .4s var(--ease), background .4s var(--ease), box-shadow .4s var(--ease);
}
/* スクロール後: 白背景 */
.site-header.is-scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 12px 0;
  box-shadow: 0 1px 0 rgba(13,31,78,.07), 0 4px 24px rgba(13,31,78,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}

/* ── ロゴ ── */
.logo {
  position: relative;
  display: flex;
  align-items: center;
  height: 44px;
  width: 240px;
  flex-shrink: 0;
}
.logo img {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 44px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  object-position: left center;
  transition: opacity .35s var(--ease);
  display: block;
}
/* ファーストビュー: 白ロゴ表示・青ロゴ非表示 */
.logo img.logo-white { opacity: 1; }
.logo img.logo-blue  { opacity: 0; }
/* スクロール後: 青ロゴ表示・白ロゴ非表示 */
.site-header.is-scrolled .logo img.logo-white { opacity: 0; }
.site-header.is-scrolled .logo img.logo-blue  { opacity: 1; }

/* ── ナビゲーション ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(255,255,255,.85);   /* ファーストビュー: 白文字 */
  transition: color .3s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: currentColor;
  transition: width .3s var(--ease);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
/* スクロール後: ネイビー文字 */
.site-header.is-scrolled .nav-links a { color: var(--gray-text); }
.site-header.is-scrolled .nav-links a:hover { color: var(--navy); }

/* ── CTAボタン ── */
.nav-cta {
  font-size: 12.5px;
  letter-spacing: .08em;
  padding: 10px 22px;
  border: 1px solid rgba(255,255,255,.6);  /* ファーストビュー: 白枠 */
  color: #fff;
  border-radius: 28px;
  transition: background .3s, color .3s, border-color .3s;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.nav-cta:hover { background: rgba(255,255,255,.15); color: #fff; }
/* スクロール後: ネイビー枠 */
.site-header.is-scrolled .nav-cta { border-color: var(--navy); color: var(--navy); }
.site-header.is-scrolled .nav-cta:hover { background: var(--navy); color: #fff; }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy-deep);
}

/* Animated gradient background */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('');
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg,
    rgba(6,15,40,.78) 0%,
    rgba(11,29,74,.62) 55%,
    rgba(9,22,58,.52) 100%);
}
@keyframes bgShift {
  from { opacity: 1; }
  to   { opacity: .8; filter: hue-rotate(8deg); }
}

/* Floating particle dots */
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  animation: float linear infinite;
}
.particle:nth-child(1)  { width:4px; height:4px; left:15%; top:25%; animation-duration:18s; animation-delay:-3s; }
.particle:nth-child(2)  { width:3px; height:3px; left:65%; top:15%; animation-duration:22s; animation-delay:-8s; }
.particle:nth-child(3)  { width:5px; height:5px; left:80%; top:65%; animation-duration:16s; animation-delay:-1s; }
.particle:nth-child(4)  { width:3px; height:3px; left:35%; top:75%; animation-duration:20s; animation-delay:-12s; }
.particle:nth-child(5)  { width:6px; height:6px; left:88%; top:30%; animation-duration:25s; animation-delay:-6s; }
.particle:nth-child(6)  { width:3px; height:3px; left:50%; top:50%; animation-duration:19s; animation-delay:-9s; }
.particle:nth-child(7)  { width:4px; height:4px; left:72%; top:82%; animation-duration:23s; animation-delay:-4s; }
.particle:nth-child(8)  { width:3px; height:3px; left:10%; top:60%; animation-duration:17s; animation-delay:-14s; }
.particle:nth-child(9)  { width:5px; height:5px; left:55%; top:35%; animation-duration:21s; animation-delay:-7s; }
.particle:nth-child(10) { width:3px; height:3px; left:28%; top:88%; animation-duration:24s; animation-delay:-2s; }
@keyframes float {
  0%   { transform: translateY(0) translateX(0) scale(1); opacity:.15; }
  33%  { transform: translateY(-30px) translateX(12px) scale(1.1); opacity:.3; }
  66%  { transform: translateY(-15px) translateX(-8px) scale(.9); opacity:.2; }
  100% { transform: translateY(0) translateX(0) scale(1); opacity:.15; }
}

/* SVG wave lines */
.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .18;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 140px 48px 0 48px;
  text-align: left;
}
.hero h1 {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  font-size: clamp(36px, 4.8vw, 62px);
  font-weight: normal !important;
  color: #fff;
  letter-spacing: .06em;
  line-height: 1.45;
  margin-bottom: 28px;
  max-width: 600px;
  text-align: left;
  animation: heroFadeUp .9s var(--ease-out) .15s both;
}
.hero-sub {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  font-size: 20px;
  color: rgba(255,255,255,.78);
  line-height: 2.1;
  margin-bottom: 52px;
  max-width: 400px;
  text-align: left;
  animation: heroFadeUp .9s var(--ease-out) .3s both;
}
.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 36px;
  border: 1px solid rgba(255,255,255,.55);
  color: #fff;
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  font-size: 13.5px;
  letter-spacing: .08em;
  border-radius: 32px;
  transition: background .3s, border-color .3s, color .3s, gap .3s;
  animation: heroFadeUp .9s var(--ease-out) .45s both;
}
.hero-cta-btn:hover {
  background: rgba(255,255,255,.18);
  border-color: #fff;
  color: #fff;
  gap: 20px;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.4);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: heroFadeUp 1s var(--ease-out) 1s both;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}

/* =============================================
   ABOUT  ― 洗練されたライトデザイン
   ============================================= */
.about {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gray-bg);
  position: relative;
  overflow: hidden;
  padding: 120px 0;
}

/* 淡いグラデーション装飾 */
.about::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 60% at 100% 50%, rgba(41,86,212,.055) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 0% 60%, rgba(74,122,240,.04) 0%, transparent 55%);
  pointer-events: none;
}

/* SVG wave decoration */
.about-wave {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
  overflow: hidden;
}
.about-wave svg { width: 100%; height: 100%; }

.about-inner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ─── ブロックアニメーション専用 ─── */
.about-block {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .85s var(--ease-out), transform .85s var(--ease-out);
}
.about-block.is-visible {
  opacity: 1;
  transform: none;
}
.about-block:nth-child(1) { transition-delay: 0s; }
.about-block:nth-child(2) { transition-delay: .2s; }
.about-block:nth-child(3) { transition-delay: .38s; }
.about-block:nth-child(4) { transition-delay: .56s; }

.about h2 {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  font-size: clamp(26px, 3.2vw, 44px);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .05em;
  line-height: 1.55;
  margin-bottom: 40px;
  text-align: center;
}
.about-body p {
  font-family: 'M PLUS Rounded 1c', 'Noto Sans JP', sans-serif;
  font-size: 17px;
  color: var(--gray-text);
  line-height: 2;
  margin-bottom: 0;
  text-align: center;
}

/* Floating accent dots */
.about-accent {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 9px;
  pointer-events: none;
  z-index: 1;
}
.about-accent.right { right: -20px; top: 30%; }
.about-accent.left  { left: -20px; bottom: 30%; }
.about-accent span {
  display: block;
  border-radius: 50%;
  background: var(--blue-pale);
  animation: dotPulse 3s ease-in-out infinite;
}
.about-accent span:nth-child(1) { width:8px; height:8px; animation-delay:.2s; opacity:.7; }
.about-accent span:nth-child(2) { width:5px; height:5px; animation-delay:.5s; opacity:.4; }
.about-accent span:nth-child(3) { width:4px; height:4px; animation-delay:.8s; opacity:.3; }
@keyframes dotPulse {
  0%,100% { transform: scale(1); opacity: .5; }
  50%      { transform: scale(1.3); opacity: 1; }
}



/* =============================================
   SERVICE
   ============================================= */
.service {
  padding: 130px 0;
  background: #fff;
}
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 64px;
}
.service-card {
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 20px rgba(13,31,78,.07);
  transition: transform .4s var(--ease-out), box-shadow .4s var(--ease-out);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(13,31,78,.12);
}
.service-img-wrap {
  height: 240px;
  overflow: hidden;
  position: relative;
}
/* Placeholder image with gradient — replace src with real photo */
.service-img-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to bottom, transparent 40%, rgba(11,29,74,.4) 100%);
}
.service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease-out), filter .6s;
  filter: brightness(.88) saturate(.75);
}
.service-card:hover .service-img {
  transform: scale(1.04);
  filter: brightness(.95) saturate(.9);
}
.service-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-img-placeholder.s1 {
  background: linear-gradient(135deg, #1a2f5e 0%, #243c78 50%, #1c3368 100%);
}
.service-img-placeholder.s2 {
  background: linear-gradient(135deg, #0e2048 0%, #162d60 50%, #1a3870 100%);
}
.service-img-placeholder svg { opacity: .25; }

.service-body { padding: 32px 36px 36px; }
.service-icon-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s var(--ease), background .3s;
}
.service-card:hover .service-icon {
  transform: scale(1.08);
  background: var(--blue);
}
.service-icon svg { width: 22px; height: 22px; }
.service-h { font-size: 18px; font-weight: 700; letter-spacing: .04em; line-height: 1.65; color: var(--navy); }
.service-divider { width: 28px; height: 1px; background: var(--blue); margin: 14px 0; }
.service-p { font-size: 15.5px; color: var(--gray-text); line-height: 2; }

/* =============================================
   STRENGTH
   ============================================= */
.strength {
  padding: 130px 0;
  background: #fff;
  position: relative;
  overflow: hidden;
}
.strength::after {
  content: '';
  position: absolute;
  right: -80px; top: 50%;
  transform: translateY(-50%);
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(41,86,212,.04) 0%, transparent 70%);
  pointer-events: none;
}

.strength-list { max-width: 780px; margin: 64px auto 0; }
.strength-item {
  display: grid;
  grid-template-columns: 120px 1px 1fr;
  align-items: center;
  gap: 0 32px;
  padding: 44px 0;
  border-bottom: 1px solid var(--gray-line);
  cursor: default;
  transition: transform .3s var(--ease);
}
.strength-item:first-child { border-top: 1px solid var(--gray-line); }
.strength-item:hover { transform: translateX(6px); }

.strength-num {
  font-family: 'Inter', sans-serif;
  font-size: 72px;
  font-weight: 300;
  color: var(--blue-pale);
  line-height: 1;
  letter-spacing: -0.02em;
  transition: color .3s;
  text-align: right;
  padding-right: 8px;
}
.strength-item:hover .strength-num { color: #a8c0e8; }

/* 縦線 */
.strength-divider {
  width: 1px;
  height: 52px;
  background: var(--gray-line);
  flex-shrink: 0;
  align-self: center;
}

.strength-text {
  font-size: 17px;
  font-weight: 400;
  color: var(--navy);
  line-height: 1.8;
  letter-spacing: .04em;
  padding-left: 8px;
}

/* =============================================
   FLOW  ― 左テキスト＋右画像スタイル
   ============================================= */
.flow {
  padding: 120px 0;
  background: var(--gray-bg);
}

.flow-list {
  max-width: 900px;
  margin: 64px auto 0;
}

/* ── 各ステップ行 ── */
.flow-row {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: center;
  background: #fff;
  border-radius: 16px;
  padding: 40px 40px;
  box-shadow: 0 2px 16px rgba(13,31,78,.055);
  transition: box-shadow .35s var(--ease-out), transform .35s var(--ease-out);
}
.flow-row:hover {
  box-shadow: 0 8px 32px rgba(13,31,78,.09);
  transform: translateY(-2px);
}

/* 左：テキストエリア */
.flow-text-area { display: flex; gap: 20px; align-items: flex-start; }
.flow-step-num-block { flex-shrink: 0; }
.flow-step-label {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #9aaac8;
  line-height: 1;
  margin-bottom: 2px;
}
.flow-step-num {
  font-family: 'Inter', sans-serif;
  font-size: 54px;
  font-weight: 300;
  color: var(--blue-pale);
  line-height: 1;
  letter-spacing: -0.02em;
}
.flow-step-divider {
  width: 1px;
  height: 56px;
  background: var(--gray-line);
  flex-shrink: 0;
  align-self: center;
  margin: 0 4px;
}
.flow-step-body { flex: 1; }
.flow-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .03em;
  margin-bottom: 10px;
  line-height: 1.45;
}
.flow-card-desc {
  font-size: 14.5px;
  color: var(--gray-text);
  line-height: 2;
}

/* 右：画像 */
.flow-img-wrap {
  display: block;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  width: 100%;
  flex-shrink: 0;
}
.flow-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .55s var(--ease-out);
}
.flow-row:hover .flow-img-wrap img { transform: scale(1.04); }

/* ── ステップ間コネクター（∨） ── */
.flow-connector {
  display: flex;
  justify-content: center;
  padding: 14px 0;
  color: var(--blue-pale);
  font-size: 22px;
  user-select: none;
}

/* 旧要素は非表示 */
.flow-step-indicator,
.flow-dot,
.flow-card,
.flow-divider-v,
.flow-step-badge { display: none; }

@media (max-width: 760px) {
  .flow-row { grid-template-columns: 1fr; gap: 24px; padding: 28px 24px; }
  .flow-img-wrap { aspect-ratio: 16/9; }
  .flow-step-num { font-size: 40px; }
}
.flow-connector-inner {
  display: flex;
  justify-content: center;
}

/* =============================================
   NEWS
   ============================================= */
.news {
  padding: 130px 0;
  background: var(--gray-bg);
}
.news-list { max-width: 880px; margin: 64px auto 48px; display: flex; flex-direction: column; gap: 10px; }
.news-item {
  display: grid;
  grid-template-columns: 110px 80px 1fr 24px;
  align-items: center;
  gap: 24px;
  padding: 22px 28px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(13,31,78,.055);
  transition: transform .3s var(--ease), box-shadow .3s;
  cursor: pointer;
}
.news-item:hover { transform: translateX(5px); box-shadow: 0 4px 24px rgba(13,31,78,.1); }
.news-date {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: #9aaac8;
}
.news-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--navy);
  color: #fff;
  font-size: 10.5px;
  letter-spacing: .06em;
  border-radius: 2px;
  text-align: center;
  white-space: nowrap;
}
.news-tag.seminar { background: var(--blue); }
.news-tag.column  { background: #3a5090; }
.news-title { font-size: 15px; letter-spacing: .03em; }
.news-arrow { color: var(--blue); font-size: 16px; transition: transform .3s; }
.news-item:hover .news-arrow { transform: translateX(4px); }

.news-more-wrap { display: flex; justify-content: center; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 15px 40px;
  border: 1px solid var(--navy);
  color: var(--navy);
  font-size: 14.5px;
  letter-spacing: .1em;
  border-radius: 28px;
  transition: background .3s, color .3s, gap .3s;
}
.btn-outline:hover { background: var(--navy); color: #fff; gap: 20px; }


/* =============================================
   COMPANY
   ============================================= */
.company {
  padding: 130px 0;
  background: #fff;
}
.company-table { max-width: 720px; margin: 64px auto 0; }
.company-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 40px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--gray-line);
}
.company-row:first-child { border-top: 1px solid var(--gray-line); }
.company-label { font-size: 15px; font-weight: 700; color: var(--navy); letter-spacing: .04em; padding-top: 1px; }
.company-val { font-size: 15.5px; color: var(--gray-text); line-height: 1.9; }
.company-val li { padding: 3px 0; }
.company-val li::before { content: '・'; }

/* =============================================
   CONTACT
   ============================================= */
.contact-section {
  padding: 130px 0;
  background: var(--gray-bg);
}
.contact-header { text-align: center; margin-bottom: 16px; }
.contact-header h2 {
  font-size: clamp(24px,3.2vw,40px);
  font-weight: 400;
  color: var(--navy);
  letter-spacing: .07em;
  margin-bottom: 20px;
}
.contact-header p { font-size: 15.5px; color: var(--gray-text); line-height: 2; }

.contact-card {
  max-width: 880px;
  margin: 52px auto 0;
  background: var(--navy-deep);
  border-radius: 18px;
  padding: 72px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
/* Dot-grid texture */
.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 22px 22px;
}
/* Glow */
.contact-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 110%, rgba(41,86,212,.5) 0%, transparent 65%);
  pointer-events: none;
}
.contact-card-inner { position: relative; z-index: 1; }
.contact-card h3 {
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 400;
  color: #fff;
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.contact-card p { font-size: 15px; color: rgba(255,255,255,.6); line-height: 1.9; margin-bottom: 44px; }
.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 17px 48px;
  border: 1px solid rgba(255,255,255,.5);
  color: #fff;
  font-size: 15px;
  letter-spacing: .12em;
  border-radius: 2px;
  transition: background .3s, border-color .3s, color .3s, gap .3s;
}
.btn-contact:hover { background: #fff; border-color: #fff; color: var(--navy); gap: 22px; }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--navy-deep);
  padding: 44px 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.footer-logo {
  display: flex;
  align-items: center;
  height: 36px;
}
.footer-logo img {
  height: 32px;
  width: auto;
  object-fit: contain;
  opacity: .85;
}
.footer-copy {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,.35);
  letter-spacing: 0.05em;
  text-align: center;
}
.footer-nav { display: flex; gap: 28px; justify-content: flex-end; }
.footer-nav a { font-size: 11.5px; color: rgba(255,255,255,.45); letter-spacing: .05em; transition: color .3s; }
.footer-nav a:hover { color: #fff; }
.footer-sep { color: rgba(255,255,255,.2); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 860px) {
  .container { padding: 0 24px; }
  .header-inner { padding: 0 24px; }
  .hero-content { padding: 90px 24px 0; }
  .nav-links { display: none; }
  .nav-cta { display: none; }

  .service-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: auto auto 1fr; grid-template-rows: auto auto; }
  .news-title { grid-column: 1 / -1; }
  .news-arrow { display: none; }
  .company-row { grid-template-columns: 90px 1fr; gap: 20px; }
  .contact-card { padding: 52px 32px; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-nav { justify-content: center; }

  /* STRENGTH タブレット */
  .strength-list { margin-top: 40px; }
  .strength-item {
    grid-template-columns: 80px 1px 1fr;
    gap: 0 20px;
    padding: 32px 0;
  }
  .strength-num { font-size: 52px; }
  .strength-divider { height: 44px; }
  .strength-text { font-size: 15px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 34px; }
  .about-accent { display: none; }

  /* STRENGTH スマホ — 縦積みレイアウト */
  .strength { padding: 80px 0; }
  .strength-list { margin-top: 32px; }
  .strength-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 28px 0;
  }
  /* 縦線は非表示 */
  .strength-divider { display: none; }
  /* 番号を小さく横並びに */
  .strength-num-row {
    display: flex;
    align-items: baseline;
    gap: 6px;
  }
  .strength-num {
    font-size: 40px;
    text-align: left;
    padding-right: 0;
  }
  .strength-text {
    font-size: 15px;
    letter-spacing: .02em;
    line-height: 1.75;
    padding-left: 4px;
  }
}

/* Flow カード内画像 */
.flow-card-img {
  width: 100%;
  height: 160px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
}
.flow-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s var(--ease-out);
}
.flow-card:hover .flow-card-img img {
  transform: scale(1.04);
}

/* =============================================
   HAMBURGER MENU
   ============================================= */
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.5);
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color .3s, background .3s;
  flex-shrink: 0;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: #fff;
  border-radius: 2px;
  transition: transform .35s var(--ease-out), opacity .25s, background .3s;
}
/* スクロール後はネイビーボーダー */
.site-header.is-scrolled .hamburger {
  border-color: rgba(11,29,74,.25);
}
.site-header.is-scrolled .hamburger span { background: var(--navy); }

/* 開いた状態 */
.hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── ドロワーメニュー ── */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 800;
  pointer-events: none;
}
/* オーバーレイ */
.drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6,15,40,.6);
  opacity: 0;
  transition: opacity .35s var(--ease);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
/* メニューパネル */
.drawer-panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(320px, 85vw);
  background: #fff;
  padding: 88px 40px 40px;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .4s var(--ease-out);
  box-shadow: -8px 0 40px rgba(6,15,40,.15);
}
/* 開いた状態 */
.drawer.is-open { pointer-events: auto; }
.drawer.is-open .drawer-overlay { opacity: 1; }
.drawer.is-open .drawer-panel { transform: translateX(0); }

/* ドロワーナビ */
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 40px;
}
.drawer-nav a {
  font-size: 16px;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: .04em;
  padding: 18px 0;
  border-bottom: 1px solid var(--gray-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .25s, padding-left .25s;
}
.drawer-nav a:first-child { border-top: 1px solid var(--gray-line); }
.drawer-nav a::after {
  content: '›';
  font-size: 18px;
  color: var(--blue-pale);
  transition: transform .25s, color .25s;
}
.drawer-nav a:hover { color: var(--blue); padding-left: 6px; }
.drawer-nav a:hover::after { color: var(--blue); transform: translateX(4px); }

/* ドロワーCTAボタン */
.drawer-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  background: var(--navy);
  color: #fff;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .06em;
  border-radius: 8px;
  margin-top: auto;
  transition: background .3s;
}
.drawer-cta:hover { background: var(--navy-mid); }

/* ── スマホ表示切替 ── */
@media (max-width: 860px) {
  .hamburger { display: flex; }

  /* HEROのh1・subを中央に */
  .hero-content {
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    padding-bottom: 60px;
    text-align: center;
  }
  .hero h1 {
    text-align: center;
    font-size: clamp(32px, 8vw, 52px);
    max-width: 100%;
  }
  .hero-sub {
    text-align: center;
    font-size: 15px;
    max-width: 100%;
  }
  .hero-cta-btn {
    width: 100%;
    max-width: 340px;
    justify-content: center;
    border-radius: 10px;
    padding: 18px 24px;
    font-size: 15px;
  }
}