/*
Theme Name: SeatecHIROSHIMA
Theme URI: https://seatec.hiroshima.jp
Author: SeatecHIROSHIMA Ltd.
Description: Official corporate site for SeatecHIROSHIMA — Ocean DeepTech
Version: 2.0
*/

/* ============================================================
   CSS Variables
   ============================================================ */
:root {
  --c-black:      #0a0d10;
  --c-dark:       #111111;
  --c-white:      #ffffff;
  --c-bg:         #f7f7f5;
  --c-green:      #0d6b53;
  --c-green-lt:   #3dcda0;
  --c-muted:      #4a4a4a;
  --c-faint:      #808080;
  --c-border:     rgba(0,0,0,0.08);
  --c-border-lt:  rgba(255,255,255,0.08);

  --font-serif-jp: 'Shippori Mincho', serif;
  --font-serif-en: 'EB Garamond', Georgia, serif;
  --font-sans:     'Noto Sans JP', sans-serif;

  --max-w: 1200px;
  --pad-x: 64px;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  color: var(--c-dark);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  line-height: 1;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: var(--font-sans); }

/* ============================================================
   Navigation
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--c-border);
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0 var(--pad-x);
  justify-content: space-between;
  gap: 40px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.nav-logo {
  font-family: var(--font-serif-en);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--c-dark);
  white-space: nowrap;
}
.nav-logo em { font-style: normal; color: var(--c-green); }
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 11px;
  color: var(--c-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 400;
  transition: color .2s;
}
.nav-links a:hover { color: var(--c-green); }
.nav-cta {
  border: 1px solid var(--c-dark);
  padding: 8px 22px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-dark);
  transition: background .2s, color .2s;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--c-dark); color: var(--c-white); }

/* ============================================================
   HERO — Video Background
   ============================================================ */
.hero {
  position: relative;
  min-height: 92vh;
  background: var(--c-black);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 var(--pad-x) 80px;
  overflow: hidden;
}

/* 動画 */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
  z-index: 0;
}

/* 動画がない場合のダミー背景グラデーション */
.hero-dummy-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 60% 35%, rgba(13,107,83,0.28) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 75%, rgba(61,205,160,0.08) 0%, transparent 45%),
    linear-gradient(160deg, #0a0d10 0%, #0d1a15 100%);
}
/* ダミー背景に "VIDEO" テキストを重ねて差し替え場所を示す */
.hero-dummy-bg::after {
  content: '▶  ここに動画が入ります\A（外観 → カスタマイズ → 動画・画像設定 から差し替え）';
  white-space: pre;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 13px;
  color: rgba(255,255,255,0.15);
  letter-spacing: 0.08em;
  text-align: center;
  font-family: var(--font-sans);
  line-height: 2;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 24px 40px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10,13,16,0.85) 0%,
    rgba(10,13,16,0.3) 50%,
    rgba(10,13,16,0.1) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
}
.hero-tag {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 28px;
  font-weight: 300;
}
.hero h1 {
  font-family: var(--font-serif-jp);
  font-size: 60px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--c-white);
  max-width: 780px;
  margin-bottom: 28px;
}
.hero h1 em { font-style: normal; color: var(--c-green-lt); }
.hero-sub {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255,255,255,0.72);
  max-width: 500px;
  margin-bottom: 44px;
  font-weight: 300;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: -48px;
  right: 0;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-scroll::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: rgba(255,255,255,0.15);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 400;
  transition: all .2s;
  white-space: nowrap;
}
.btn-dark  { background: var(--c-dark); color: var(--c-white); }
.btn-dark:hover { background: #333; }
.btn-green { background: var(--c-green); color: var(--c-white); }
.btn-green:hover { background: #0a5c45; }
.btn-line  { background: transparent; color: rgba(255,255,255,0.6); border: 1px solid rgba(255,255,255,0.2); }
.btn-line:hover { border-color: rgba(255,255,255,0.5); color: var(--c-white); }
.btn-outline { background: transparent; color: var(--c-dark); border: 1px solid var(--c-dark); }
.btn-outline:hover { background: var(--c-dark); color: var(--c-white); }
.btn-white { background: var(--c-white); color: var(--c-green); }
.btn-white:hover { background: #f0faf6; }
.btn-ghost-white { background: transparent; color: rgba(255,255,255,0.65); border: 1px solid rgba(255,255,255,0.25); }
.btn-ghost-white:hover { border-color: rgba(255,255,255,0.5); }
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   Statement
   ============================================================ */
.statement {
  padding: 100px var(--pad-x);
  background: var(--c-white);
}
.statement-inner { max-width: var(--max-w); margin: 0 auto; }
.statement h2 {
  font-family: var(--font-serif-jp);
  font-size: 48px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--c-dark);
  max-width: 800px;
}
.statement h2 em {
  font-style: normal;
  color: var(--c-green);
  border-bottom: 2px solid var(--c-green);
  padding-bottom: 3px;
}
.statement-body {
  font-size: 14px;
  line-height: 2;
  color: var(--c-muted);
  max-width: 480px;
  margin-top: 32px;
  font-weight: 300;
}

/* ============================================================
   Numbers
   ============================================================ */
.numbers {
  background: var(--c-bg);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.num-item {
  padding: 56px 48px;
  border-right: 1px solid #e8e8e3;
}
.num-item:last-child { border-right: none; }
.num-val {
  font-family: var(--font-serif-en);
  font-size: 54px;
  font-weight: 400;
  color: var(--c-dark);
  line-height: 1;
  margin-bottom: 12px;
}
.num-val em { font-style: normal; color: var(--c-green); }
.num-label {
  font-size: 11px;
  color: var(--c-faint);
  letter-spacing: 0.04em;
  line-height: 1.7;
  font-weight: 300;
}

/* ============================================================
   Split — image + text
   ============================================================ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 560px;
}
.split-media {
  position: relative;
  background: var(--c-black);
  overflow: hidden;
  min-height: 480px;
}
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}
/* ダミー画像表示 */
.split-media-dummy {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, #0a1a14 0%, #0d2a1f 100%);
}
.split-media-dummy::before {
  content: '';
  width: 64px;
  height: 64px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  display: block;
}
.split-media-dummy::after {
  content: attr(data-label);
  font-size: 11px;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.12em;
  text-align: center;
  font-family: var(--font-sans);
  line-height: 1.8;
}
.split-media-caption {
  position: absolute;
  bottom: 32px;
  left: 32px;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  z-index: 2;
}
.split-body {
  padding: 80px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--c-white);
}
.split-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 20px;
}
.split-body h2 {
  font-family: var(--font-serif-jp);
  font-size: 38px;
  font-weight: 400;
  color: var(--c-dark);
  line-height: 1.45;
  margin-bottom: 24px;
}
.split-body p {
  font-size: 13px;
  line-height: 2;
  color: var(--c-muted);
  font-weight: 300;
  margin-bottom: 14px;
}

/* ============================================================
   Diagram
   ============================================================ */
.diagram-section {
  background: var(--c-white);
  padding: 80px var(--pad-x);
  text-align: center;
}
.diagram-inner { max-width: var(--max-w); margin: 0 auto; }
.diagram-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-faint);
  margin-bottom: 14px;
}
.diagram-title {
  font-family: var(--font-serif-jp);
  font-size: 30px;
  font-weight: 400;
  color: var(--c-dark);
  margin-bottom: 48px;
}
.diagram {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid #e5e5e5;
}
.d-side {
  padding: 32px 48px;
  text-align: center;
}
.d-side-lbl {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #bbb;
  margin-bottom: 8px;
}
.d-side-title {
  font-size: 16px;
  color: var(--c-dark);
  line-height: 1.5;
  font-weight: 400;
}
.d-side-sub {
  font-size: 11px;
  color: #bbb;
  margin-top: 6px;
}
.d-center {
  background: var(--c-green);
  padding: 32px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.d-center-word {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.d-center-arrow {
  font-size: 24px;
  color: var(--c-white);
  font-weight: 300;
  line-height: 1;
  margin: 4px 0;
}
.diagram-note {
  font-size: 11px;
  color: #bbb;
  margin-top: 20px;
  letter-spacing: 0.04em;
}

/* ============================================================
   Solutions — dark editorial list
   ============================================================ */
.solutions {
  background: var(--c-black);
  padding: 100px var(--pad-x);
}
.solutions-inner { max-width: var(--max-w); margin: 0 auto; }
.sol-header { margin-bottom: 64px; }
.sol-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  margin-bottom: 16px;
}
.sol-header h2 {
  font-family: var(--font-serif-jp);
  font-size: 48px;
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.45;
}
.sol-header h2 em { font-style: normal; color: var(--c-green-lt); }
.sol-list { display: flex; flex-direction: column; }
.sol-item {
  padding: 44px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: grid;
  grid-template-columns: 56px 1fr 260px;
  gap: 48px;
  align-items: start;
}
.sol-num {
  font-family: var(--font-serif-en);
  font-size: 13px;
  color: rgba(255,255,255,0.15);
  letter-spacing: 0.1em;
  padding-top: 8px;
}
.sol-stage {
  display: inline-block;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-green-lt);
  border: 1px solid rgba(61,205,160,0.3);
  padding: 3px 10px;
  margin-bottom: 12px;
}
.sol-title {
  font-family: var(--font-serif-jp);
  font-size: 26px;
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.45;
  margin-bottom: 12px;
}
.sol-body {
  font-size: 14px;
  line-height: 2;
  color: rgba(255,255,255,0.72);
  font-weight: 300;
}
.sol-meta {
  font-size: 12px;
  line-height: 1.9;
  color: rgba(255,255,255,0.45);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 12px;
  margin-top: 12px;
}
.sol-right {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255,255,255,0.5);
  padding-top: 48px;
}

/* ============================================================
   Quote
   ============================================================ */
.quote-section {
  background: var(--c-white);
  padding: 100px var(--pad-x);
  text-align: center;
}
.quote-inner { max-width: var(--max-w); margin: 0 auto; }
.quote-line {
  width: 32px;
  height: 2px;
  background: var(--c-green);
  margin: 0 auto 48px;
}
.quote-text {
  font-family: var(--font-serif-jp);
  font-size: 36px;
  font-weight: 400;
  color: var(--c-dark);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto 24px;
}
.quote-cite {
  font-size: 11px;
  color: var(--c-faint);
  letter-spacing: 0.12em;
}

/* ============================================================
   Our Way — split with image
   ============================================================ */
.ourway {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 560px;
}
.ourway-body {
  padding: 80px 64px;
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.ourway-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 20px;
}
.ourway-body h2 {
  font-family: var(--font-serif-jp);
  font-size: 38px;
  font-weight: 400;
  color: var(--c-dark);
  line-height: 1.45;
  margin-bottom: 24px;
}
.ourway-body h2 em { font-style: normal; color: var(--c-green); }
.ourway-body p {
  font-size: 13px;
  line-height: 2;
  color: var(--c-muted);
  font-weight: 300;
  margin-bottom: 14px;
}
.ourway-body p:last-of-type { margin-bottom: 0; }
.ourway-quote {
  border-left: 2px solid var(--c-green);
  padding: 12px 0 12px 20px;
  margin-top: 28px;
}
.ourway-quote q {
  font-family: var(--font-serif-jp);
  font-size: 17px;
  font-style: normal;
  color: var(--c-dark);
  line-height: 1.7;
}
.ourway-quote cite {
  display: block;
  font-size: 11px;
  color: var(--c-faint);
  font-style: normal;
  margin-top: 6px;
  letter-spacing: 0.08em;
}
.ourway-media {
  position: relative;
  background: var(--c-black);
  overflow: hidden;
}
.ourway-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.65;
}

/* ============================================================
   Stats bar
   ============================================================ */
.stats-bar {
  background: var(--c-black);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,0.05);
}
.stats-bar-item {
  padding: 48px 40px;
  border-right: 1px solid rgba(255,255,255,0.05);
  text-align: center;
}
.stats-bar-item:last-child { border-right: none; }
.stats-bar-val {
  font-family: var(--font-serif-en);
  font-size: 44px;
  color: var(--c-white);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 10px;
}
.stats-bar-val em { font-style: normal; color: var(--c-green-lt); }
.stats-bar-label { font-size: 11px; color: rgba(255,255,255,0.3); line-height: 1.6; }

/* ============================================================
   News
   ============================================================ */
.news-section {
  background: var(--c-white);
  padding: 80px var(--pad-x);
}
.news-inner { max-width: var(--max-w); margin: 0 auto; }
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 32px;
}
.section-h2 {
  font-family: var(--font-serif-jp);
  font-size: 22px;
  font-weight: 400;
  color: var(--c-dark);
}
.section-more {
  font-size: 11px;
  color: var(--c-green);
  letter-spacing: 0.08em;
}
.news-list { list-style: none; }
.news-item {
  padding: 18px 0;
  border-bottom: 1px solid #f0f0ee;
  display: flex;
  gap: 24px;
  align-items: baseline;
}
.news-date { font-size: 11px; color: var(--c-faint); min-width: 96px; letter-spacing: 0.04em; }
.news-title { font-size: 14px; color: var(--c-dark); transition: color .2s; }
.news-title:hover { color: var(--c-green); }

/* ============================================================
   CTA
   ============================================================ */
.cta-section {
  background: var(--c-green);
  padding: 100px var(--pad-x);
}
.cta-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}
.cta-section h2 {
  font-family: var(--font-serif-jp);
  font-size: 42px;
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.45;
  margin-bottom: 16px;
}
.cta-section p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.9;
  font-weight: 300;
  max-width: 480px;
}
.cta-btns {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 220px;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--c-black);
  padding: 28px var(--pad-x);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-serif-en);
  font-size: 14px;
  color: rgba(255,255,255,0.3);
}
.footer-logo em { font-style: normal; color: var(--c-green); }
.footer-partners {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 10px;
  color: rgba(255,255,255,0.18);
  letter-spacing: 0.06em;
}
.footer-copy { font-size: 10px; color: rgba(255,255,255,0.18); }

/* ============================================================
   Page Hero (inner pages)
   ============================================================ */
.page-hero {
  background: var(--c-black);
  padding: 80px var(--pad-x) 72px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(13,107,83,0.18) 0%, transparent 60%);
}
.page-hero-inner { max-width: var(--max-w); margin: 0 auto; position: relative; }
.page-hero .eyebrow {
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.page-hero .eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--c-green);
}
.page-hero h1 {
  font-family: var(--font-serif-jp);
  font-size: 48px;
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.35;
  margin-bottom: 20px;
}
.page-hero p {
  font-size: 15px;
  color: rgba(255,255,255,0.72);
  max-width: 540px;
  line-height: 1.9;
  font-weight: 300;
}

/* ============================================================
   Shared section utilities
   ============================================================ */
.section { padding: 80px var(--pad-x); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }
.section-bg { background: var(--c-bg); }
.section-dark { background: var(--c-black); }
.eyebrow-sm {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 14px;
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }

/* Cards */
.card {
  background: var(--c-white);
  padding: 36px 28px;
  border: 1px solid #ebebeb;
}
.card-num { font-family: var(--font-serif-en); font-size: 13px; color: var(--c-green); margin-bottom: 14px; letter-spacing: 0.08em; }
.card h3 { font-family: var(--font-serif-jp); font-size: 22px; font-weight: 400; color: var(--c-dark); margin-bottom: 12px; line-height: 1.4; }
.card p { font-size: 13px; color: var(--c-muted); line-height: 1.9; font-weight: 300; }
.card-tag { display: block; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-green); border-top: 1px solid #ebebeb; padding-top: 14px; margin-top: 16px; }

/* CF7 */
.wpcf7 input[type="text"],
.wpcf7 input[type="email"],
.wpcf7 textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e0e0e0;
  border-bottom: 2px solid #e0e0e0;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--c-dark);
  background: var(--c-white);
  outline: none;
  transition: border-color .2s;
  margin-bottom: 16px;
  border-radius: 0;
}
.wpcf7 input:focus, .wpcf7 textarea:focus { border-bottom-color: var(--c-green); }
.wpcf7 textarea { min-height: 140px; resize: vertical; }
.wpcf7 input[type="submit"] {
  background: var(--c-green);
  color: var(--c-white);
  border: none;
  padding: 14px 36px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s;
}
.wpcf7 input[type="submit"]:hover { background: #0a5c45; }

/* Team cards */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.team-card { background: var(--c-bg); transition: transform .2s; }
.team-card:hover { transform: translateY(-4px); }
.team-card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--c-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif-en);
  font-size: 40px;
  color: var(--c-green);
}
.team-card-body { padding: 24px; }
.team-card-role { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-green); margin-bottom: 6px; }
.team-card h3 { font-family: var(--font-serif-jp); font-size: 18px; font-weight: 400; color: var(--c-dark); margin-bottom: 10px; }
.team-card p { font-size: 12px; color: var(--c-muted); line-height: 1.8; font-weight: 300; }

/* News */
.news-list { list-style: none; }
.news-item { padding: 18px 0; border-bottom: 1px solid #f0f0ee; display: flex; gap: 24px; align-items: baseline; }
.news-date { font-size: 11px; color: var(--c-faint); min-width: 96px; }
.news-title-link { font-size: 14px; color: var(--c-dark); transition: color .2s; }
.news-title-link:hover { color: var(--c-green); }

.lang-switch { display:flex; align-items:center; gap:2px; margin-left:8px; }
.lang-switch .lang-current {
  font-size: 10px; letter-spacing: 0.1em;
  color: var(--c-green); font-weight: 500; padding: 2px 4px;
}
.lang-switch .lang-link {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c-muted); padding: 2px 4px; transition: color .2s; text-decoration: none;
}
.lang-switch .lang-link:hover { color: var(--c-green); }
.lang-switch .lang-sep { font-size: 9px; color: var(--c-faint); margin: 0 1px; }

/* ============================================================
   Technology — Proof of Concept
   ============================================================ */
.tech-proof {
  position: relative;
  min-height: 520px;
  background: var(--c-black);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.tech-proof-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  z-index: 0;
}
.tech-proof-dummy {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 70% 40%, rgba(13,107,83,0.22) 0%, transparent 55%),
    linear-gradient(160deg, #0a0d10 0%, #0d1a15 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.tech-proof-dummy::after {
  content: attr(data-label);
  white-space: pre;
  font-size: 12px;
  color: rgba(255,255,255,0.14);
  letter-spacing: 0.08em;
  text-align: center;
  font-family: var(--font-sans);
  line-height: 2;
  border: 1px solid rgba(255,255,255,0.07);
  padding: 20px 36px;
}
.tech-proof-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10,13,16,0.92) 0%,
    rgba(10,13,16,0.4) 55%,
    rgba(10,13,16,0.05) 100%
  );
  z-index: 1;
}
.tech-proof-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 64px var(--pad-x);
}
.tech-proof-label {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-green-lt);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.tech-proof-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--c-green-lt);
}
.tech-proof-title {
  font-family: var(--font-serif-jp);
  font-size: 44px;
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.4;
  margin-bottom: 20px;
  max-width: 640px;
}
.tech-proof-title em {
  font-style: normal;
  color: var(--c-green-lt);
}
.tech-proof-body {
  font-size: 14px;
  line-height: 1.95;
  color: rgba(255,255,255,0.65);
  max-width: 520px;
  font-weight: 300;
}

/* ============================================================
   Insights
   ============================================================ */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}
.insight-card {
  background: var(--c-bg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.insight-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.insight-tag {
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-green);
  border: 1px solid rgba(13,107,83,0.3);
  padding: 4px 10px;
}
.insight-date {
  font-size: 11px;
  color: var(--c-faint);
  letter-spacing: 0.06em;
}
.insight-title {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  font-weight: 400;
  color: var(--c-dark);
  line-height: 1.65;
  margin-bottom: 16px;
}
.insight-summary {
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-muted);
  font-weight: 300;
  flex-grow: 1;
  margin-bottom: 28px;
}
.insight-card-foot {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid #e8e8e3;
}
.insight-download {
  font-size: 11px;
  padding: 12px 28px;
}
.insight-coming {
  font-size: 11px;
  color: var(--c-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px) {
  :root { --pad-x: 24px; }
  .hero h1 { font-size: 32px; word-break: keep-all; overflow-wrap: break-word; }
  .hero-tag { font-size: 9px; letter-spacing: 0.14em; white-space: normal; }
  .hero-sub { font-size: 14px; }
  .statement h2 { font-size: 28px; word-break: keep-all; }
  .numbers, .stats-bar { grid-template-columns: 1fr 1fr; }
  .num-item, .stats-bar-item { border-right: none; border-bottom: 1px solid #e8e8e3; }
  .split, .ourway, .two-col, .three-col, .team-grid { grid-template-columns: 1fr; }
  .sol-item { grid-template-columns: 40px 1fr; }
  .sol-right { display: none; }
  .cta-inner { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .lang-switch { margin-left: 4px; }
  .lang-switch .lang-current,
  .lang-switch .lang-link,
  .lang-switch .lang-sep { font-size: 9px; }
  .quote-text { font-size: 26px; }
  .tech-proof-title { font-size: 28px; word-break: keep-all; }
  .insight-grid { grid-template-columns: 1fr; }
  /* diagram SP対応 */
  .diagram { display: flex; flex-direction: column; width: 100%; }
  .d-side { padding: 24px 20px; }
  .d-center { padding: 24px 20px; }
  .d-side-sub { display: none; }
  /* technology application grid */
  [style*="grid-template-columns:56px 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
}