/* ============================================
   TKHK — Corporate Site
   Inspired by takachiho-asia.com visual style
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: #222;
  background: #fff;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ============ HEADER ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: #fff;
  border-bottom: 2px solid #1a6dcc;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 66px;
  display: flex;
  align-items: center;
  gap: 0;
}

/* TK丸バッジ — 既存サイトに忠実に */
.tk-badge {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 36%, #4a9ce8, #0a4aaa);
  border: 2px solid #5aaae8;
  color: #fff;
  font-size: 15px;
  font-weight: 900;
  letter-spacing: -1px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-right: 20px;
}

.header-nav {
  display: flex;
  align-items: center;
  flex: 1;
}

.nav-sep {
  color: #bbb;
  font-size: 20px;
  font-weight: 200;
  padding: 0 2px;
  user-select: none;
}

.header-nav a {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #333;
  padding: 8px 14px;
  white-space: nowrap;
  transition: color 0.15s;
}

.header-nav a:hover { color: #1a6dcc; }

.header-nav .lang-link {
  color: #1a6dcc;
  font-weight: 700;
  font-size: 12px;
}

.header-nav .lang-sep {
  color: #1a6dcc;
  font-size: 11px;
  padding: 0 2px;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    linear-gradient(to right, rgba(5,13,30,0.75) 0%, rgba(5,13,30,0.50) 50%, rgba(5,13,30,0.30) 100%),
    url('../img/hero_globe.png') center center / cover no-repeat;
  background-color: #0a1628;
}

/* hero photo — no grid overlay needed */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 55% 40% at 50% 45%, rgba(30, 120, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 24px;
}

.hero-main {
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-bottom: 20px;
  font-style: italic;
  text-shadow: 0 2px 20px rgba(0,80,200,0.5);
}

.hero-sub {
  font-size: clamp(13px, 1.4vw, 16px);
  color: rgba(255,255,255,0.78);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  font-family: 'Courier New', monospace;
}

.hero-ja {
  font-size: 15px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.06em;
  font-family: 'Noto Sans JP', sans-serif;
  font-style: normal;
}

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.4);
  font-size: 28px;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============ PRODUCTS SECTION ============ */
.products-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid #e8e8e8;
}

.product-cat {
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border-right: 1px solid #e8e8e8;
}

.product-cat:last-child { border-right: none; }

/* 2×2 写真モザイク */
.photo-mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  height: 420px;
  gap: 2px;
  background: #0a0a0a;
}

.photo-cell {
  overflow: hidden;
  background: #111;
}

.photo-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity 0.4s ease;
  opacity: 0.9;
}

.product-cat:hover .photo-cell img {
  transform: scale(1.06);
  opacity: 0.75;
}

/* 中央の黒丸ラベル — 既存サイトの特徴的なUI */
.circle-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 152px;
  height: 152px;
  border-radius: 50%;
  background: rgba(8, 15, 30, 0.80);
  border: 1.5px solid rgba(120, 180, 255, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  gap: 6px;
  transition: all 0.3s ease;
  pointer-events: none;
  backdrop-filter: blur(2px);
}

.product-cat:hover .circle-label {
  background: rgba(8, 15, 30, 0.90);
  border-color: rgba(120, 180, 255, 0.5);
  box-shadow: 0 0 30px rgba(60, 130, 255, 0.2);
}

.circle-icon {
  font-size: 36px;
  line-height: 1;
  filter: drop-shadow(0 0 6px rgba(100,180,255,0.5));
}

.circle-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.3;
  color: #fff;
}

.circle-name-sub {
  font-size: 11px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.06em;
}

/* ============ SECTION COMMON ============ */
.section {
  padding: 72px 24px;
}

.inner {
  max-width: 1160px;
  margin: 0 auto;
}

.section-light { background: #f5f7fb; }
.section-white { background: #fff; }
.section-dark  { background: #060e20; }

.sec-en {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: #1a6dcc;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 8px;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.sec-title {
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 700;
  color: #0c1e3c;
  letter-spacing: 0.04em;
  line-height: 1.4;
  margin-bottom: 12px;
}

.sec-title-white { color: #fff; }

.sec-lead {
  font-size: 14px;
  color: #666;
  line-height: 1.9;
  max-width: 620px;
}

.sec-lead-white { color: rgba(255,255,255,0.65); }

/* ============ OVERVIEW (2カラム) ============ */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.overview-photo img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.overview-text h2 { margin-bottom: 20px; }

.overview-text p {
  font-size: 14px;
  color: #555;
  line-height: 1.95;
  margin-bottom: 16px;
}

.btn-primary {
  display: inline-block;
  background: #1a6dcc;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 12px 28px;
  transition: background 0.18s;
  margin-top: 8px;
}

.btn-primary:hover { background: #0e5ab8; }

/* ============ COVERAGE ============ */
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border: 1px solid rgba(255,255,255,0.12);
  margin-top: 32px;
}

.coverage-item {
  padding: 28px 16px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.coverage-item:last-child { border-right: none; }
.cov-flag-img {
  width: 72px;
  height: auto;
  margin: 0 auto 12px;
  display: block;
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}
.cov-name { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.cov-note { font-size: 11px; color: rgba(255,255,255,0.42); }

/* ============ PARTNERS ============ */
.partner-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid #e8e8e8;
  margin-top: 32px;
}

.partner-item {
  padding: 18px 12px;
  border-right: 1px solid #e8e8e8;
  text-align: center;
}

.partner-item:last-child { border-right: none; }
.partner-name { font-size: 13px; font-weight: 700; color: #0c1e3c; margin-bottom: 3px; }
.partner-role { font-size: 11px; color: #888; }

/* ============ NEWS ============ */
.news-list { margin-top: 24px; }

.news-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid #e8e8e8;
  font-size: 14px;
}

.news-date {
  flex-shrink: 0;
  font-size: 13px;
  color: #888;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  letter-spacing: 0.04em;
  min-width: 90px;
}

.news-tag {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  letter-spacing: 0.04em;
  border: 1px solid;
  white-space: nowrap;
}

.tag-info { color: #1a6dcc; border-color: #1a6dcc; }
.tag-new  { color: #c07000; border-color: #c07000; }
.tag-biz  { color: #1a8040; border-color: #1a8040; }

.news-text { flex: 1; color: #333; }

.news-all {
  display: inline-block;
  font-size: 13px;
  color: #1a6dcc;
  border-bottom: 1px solid #1a6dcc;
  padding-bottom: 1px;
  margin-top: 20px;
  transition: opacity 0.15s;
}

.news-all:hover { opacity: 0.7; }

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(135deg, #0e2a5c 0%, #06163a 60%, #0a1e50 100%);
  padding: 64px 24px;
  text-align: center;
}

.cta-en {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.cta-title {
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.cta-lead {
  font-size: 14px;
  color: rgba(255,255,255,0.58);
  margin-bottom: 32px;
  line-height: 1.9;
}

.btn-cta {
  display: inline-block;
  background: #1a6dcc;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 14px 40px;
  transition: background 0.18s;
  border: 1px solid #3a8de8;
}

.btn-cta:hover { background: #0e5ab8; }

/* ============ FOOTER ============ */
#site-footer {
  background: #030a18;
  color: rgba(255,255,255,0.5);
}

.footer-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 24px 36px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-tk {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.footer-tk-en {
  font-size: 10px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 12px;
  line-height: 1.9;
  color: rgba(255,255,255,0.38);
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col li { margin-bottom: 8px; }

.footer-col a {
  font-size: 12px;
  color: rgba(255,255,255,0.42);
  transition: color 0.15s;
}

.footer-col a:hover { color: rgba(255,255,255,0.85); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 14px 24px;
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.04em;
}

/* ============ SUB PAGE HERO ============ */
.page-hero {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(10, 80, 200, 0.5) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(80, 20, 180, 0.35) 0%, transparent 60%),
    #060d1e;
  overflow: hidden;
}

.page-hero.hero-india {
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(100, 30, 200, 0.5) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(200, 100, 0, 0.25) 0%, transparent 60%),
    #0e0620;
}

.page-hero.hero-jsales {
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(10, 120, 60, 0.5) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 80% 20%, rgba(10, 80, 200, 0.3) 0%, transparent 60%),
    #041410;
}

.page-hero-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
  position: relative;
  z-index: 2;
}

.ph-en {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.ph-title {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  line-height: 1.35;
  margin-bottom: 10px;
}

.ph-lead {
  font-size: 14px;
  color: rgba(255,255,255,0.62);
  max-width: 540px;
  line-height: 1.85;
}

/* ============ SUB PAGE COMPONENTS ============ */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.col-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.plan-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid #ddd;
}

.plan-item { border-right: 1px solid #ddd; overflow: hidden; }
.plan-item:last-child { border-right: none; }

.plan-head {
  background: #0c2a5c;
  color: #fff;
  padding: 20px 22px;
}

.plan-head-mid  { background: #2a1060; }
.plan-head-deep { background: #0a2a18; }

.plan-name { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.plan-target { font-size: 12px; opacity: 0.6; }

.plan-body { padding: 20px 22px; background: #fff; }

.plan-feature {
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid #eee;
  color: #333;
  padding-left: 14px;
  position: relative;
}

.plan-feature:last-child { border-bottom: none; }

.plan-feature::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 1px;
  background: #1a6dcc;
}

.step-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid #ddd;
  margin-top: 28px;
}

.step-item {
  padding: 26px 18px;
  border-right: 1px solid #ddd;
  text-align: center;
  background: #fff;
}

.step-item:last-child { border-right: none; }

.step-num {
  font-size: 30px;
  font-weight: 700;
  color: #1a6dcc;
  opacity: 0.2;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  line-height: 1;
  margin-bottom: 10px;
}

.step-title { font-size: 14px; font-weight: 700; color: #0c2a5c; margin-bottom: 6px; }
.step-desc  { font-size: 12px; color: #888; line-height: 1.7; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 20px;
}

.data-table th, .data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #e8e8e8;
  text-align: left;
}

.data-table th {
  background: #0c2a5c;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
}

.data-table tr:nth-child(even) td { background: #f5f7fb; }

.faq-item { border-bottom: 1px solid #e8e8e8; }

.faq-q {
  padding: 18px 0;
  font-size: 14px;
  font-weight: 700;
  color: #0c2a5c;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}

.faq-q-mark {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #1a6dcc;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.faq-a {
  padding: 0 0 18px;
  font-size: 13px;
  color: #666;
  line-height: 1.9;
}

/* breadcrumb */
.breadcrumb {
  background: #f5f7fb;
  border-bottom: 1px solid #e8e8e8;
  padding: 9px 24px;
}

.breadcrumb-inner {
  max-width: 1160px;
  margin: 0 auto;
  font-size: 12px;
  color: #888;
  display: flex;
  gap: 6px;
  align-items: center;
}

.breadcrumb a { color: #1a6dcc; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1000px) {
  .products-row { grid-template-columns: 1fr; }
  .product-cat { border-right: none; border-bottom: 1px solid #e8e8e8; }
  .photo-mosaic { height: 340px; }
  .coverage-grid, .partner-list { grid-template-columns: repeat(3, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
  .plan-row { grid-template-columns: 1fr; }
  .plan-item { border-right: none; border-bottom: 1px solid #ddd; }
}

@media (max-width: 720px) {
  .header-nav a:not(.lang-link) { display: none; }
  .nav-sep { display: none; }
  .hero { height: 480px; }
  .hero-main { font-size: 30px; }
  .overview-grid, .two-col { grid-template-columns: 1fr; }
  .step-row { grid-template-columns: repeat(2, 1fr); }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 24px; }
  .page-hero { height: 240px; }
  .page-hero-inner { padding: 0 24px; }
}