CSS
/* ==========================================
   RESET & BASE STYLES
   ========================================== */
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Montserrat', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #ffffff;
  color: #111111;
  line-height: 1.8;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 32px;
}

.text-center {
  text-align: center;
}

/* ==========================================
   HEADER
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid #eeeeee;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px 32px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* PCではスマホ用CONTACTを非表示 */
.mobile-contact {
  display: none;
}

.logo-main {
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  color: #000000;
}

.logo-sub {
  font-size: 0.75rem;
  color: #888888;
  letter-spacing: 0.1em;
}

.nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-size: 0.8rem;
  font-weight: 500;
  color: #555555;
  letter-spacing: 0.12em;
  transition: color 0.3s;
}

.nav a:hover, .nav a.active {
  color: #000000;
}

.nav-btn {
  background-color: #111111;
  color: #ffffff !important;
  padding: 10px 22px;
  border-radius: 30px;
  font-weight: 600 !important;
  transition: opacity 0.3s, transform 0.3s;
}

.nav-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* ==========================================
   SECTIONS
   ========================================== */
.section {
  padding: 120px 0;
  border-bottom: 1px solid #f0f0f0;
}

.section-num {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: #999999;
  margin-bottom: 12px;
  letter-spacing: 0.2em;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.08em;
  color: #000000;
}

.section-desc {
  color: #666666;
  font-size: 1rem;
  margin-bottom: 48px;
  max-width: 650px;
}

/* ==========================================
   01 HERO
   ========================================== */
.hero {
  min-height: 75vh;             /* 高さを少し詰めて上寄りに */
  display: flex;
  align-items: flex-start;      /* 上揃えに配置 */
  padding: 120px 32px 40px;     /* 上の余白を詰めて上に持ってくる */
  background-color: #fafafa;
  position: relative;
}

.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  width: 100%;
}

.hero-subtitle {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: #888888;
  margin-bottom: 12px;
  display: flex !important;
  justify-content: flex-start !important;
  align-items: center;
  gap: 2em;
  text-align: left !important;
}

/* メインブランド名 URBAN-S */
.hero-brand {
  font-size: clamp(3rem, 7vw, 9.5rem);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #111111;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline; /* 文字の下端（ベースライン）で揃える */
  gap: 0.25em;           /* URBAN-S と Co., Ltd. の間隔 */
  flex-wrap: wrap;       /* 画面幅が狭い場合も綺麗に折り返す */
}

/* 「Co., Ltd.」部分を小さくバランス調整 */
.hero-brand .brand-sub {
  font-size: 0.45em;     /* メインロゴの約半分（45%）の大きさに縮小 */
  font-weight: 500;     /* 太さを一段落として上品に */
  letter-spacing: 0.05em;
  color: #444444;       /* 色味を抑えて主役を引き立てる */
}

/* FROM IDEA TO PRODUCT. も一回り拡大 */
.hero-title-sub {
  font-size: clamp(1.4rem, 3.2vw, 2.4rem); /* 拡大 */
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #444444;
  margin-bottom: 20px;
}

.hero-copy {
  font-size: 1.35rem;           /* 拡大 */
  color: #333333;
  margin-bottom: 32px;
  font-weight: 500;
}

.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-tags span {
  background: #ffffff;
  border: 1px solid #dcdcdc;
  color: #222222;
  padding: 10px 24px;          /* タグも少し大きく */
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 24px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}
/* ==========================================
   02 ABOUT
   ========================================== */
.about-lead {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.45;
  margin-bottom: 28px;
  color: #111111;
  font-weight: 500;
}

.about-text {
  color: #555555;
  font-size: 1.05rem;
  max-width: 720px;
  line-height: 1.9;
}

/* ==========================================
   03 SERVICE
   ========================================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
}

.service-card {
  background: #fdfdfd;
  padding: 32px 24px;
  border-radius: 8px;
  border: 1px solid #e8e8e8;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: #111111;
  box-shadow: 0 8px 20px rgba(0,0,0,0.04);
}

.step-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: #aaaaaa;
  letter-spacing: 0.15em;
}

.service-card h3 {
  font-size: 1.15rem;
  margin: 14px 0 10px;
  color: #111111;
}

.service-card p {
  font-size: 0.88rem;
  color: #666666;
}

/* ==========================================
   04 ITEMS
   ========================================== */
/* ITEMS（全体） */
.items-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) !important; /* PCもスマホも絶対に横3列に並べる */
  gap: 16px;
}

.item-circle {
  aspect-ratio: 1 / 1;
  background: #f7f7f7;
  border: 1px solid #e2e2e2;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 0.95rem;
  color: #222222;
  transition: all 0.3s ease;
  cursor: default;
}

.item-circle:hover {
  transform: scale(1.04);
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

/* ==========================================
   05 PROCESSING
   ========================================== */
.process-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  background: #ffffff;
  border: 1px solid #dddddd;
  color: #333333;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.88rem;
  transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

.tag:hover {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

/* ==========================================
   06 STRENGTHS
   ========================================== */
.strengths-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.strength-item {
  background: #fafafa;
  padding: 24px 28px;
  border-radius: 8px;
  border-left: 3px solid #111111;
}

.strength-item h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: #111111;
}

.strength-item p {
  font-size: 0.92rem;
  color: #555555;
}

/* ==========================================
   07 NUMBERS
   ========================================== */
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.num-card {
  background: #fafafa;
  border: 1px solid #eaeaea;
  padding: 40px 28px;
  border-radius: 12px;
  text-align: center;
}

.num-label {
  font-size: 0.85rem;
  color: #777777;
  letter-spacing: 0.15em;
}

.num-val {
  font-size: 3.8rem;
  font-weight: 700;
  margin: 12px 0;
  color: #111111;
  line-height: 1;
}

.num-val span {
  font-size: 1.3rem;
  margin-left: 4px;
  color: #555555;
}

.num-card p {
  font-size: 0.88rem;
  color: #666666;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn-primary, .btn-contact {
  display: inline-block;
  background: #111111;
  color: #ffffff;
  padding: 16px 44px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 20px;
  letter-spacing: 0.08em;
  transition: opacity 0.3s, transform 0.3s;
}

.btn-primary:hover, .btn-contact:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

/* ==========================================
   09 PRODUCTION & 10 FLOW
   ========================================== */
.production-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.prod-box {
  background: #fafafa;
  border: 1px solid #e5e5e5;
  padding: 28px;
  text-align: center;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  color: #222222;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.step {
  background: #fafafa;
  border: 1px solid #e8e8e8;
  padding: 20px 14px;
  text-align: center;
  font-size: 0.9rem;
  border-radius: 8px;
  color: #333333;
}

.step span {
  display: block;
  font-size: 0.75rem;
  color: #888888;
  font-weight: 700;
  margin-bottom: 4px;
}

/* ==========================================
   11 COMPANY
   ========================================== */
.company-list {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px 28px;
  background: #fafafa;
  border: 1px solid #eaeaea;
  padding: 40px;
  border-radius: 12px;
}

.company-list dt {
  font-weight: 700;
  color: #666666;
  font-size: 0.88rem;
}

.company-list dd {
  font-size: 0.95rem;
  color: #222222;
}

/* ==========================================
   WORKS PAGE
   ========================================== */
.page-header {
  padding: 150px 0 50px;
  background: #fafafa;
  border-bottom: 1px solid #eeeeee;
}

.page-header h1 {
  font-size: 3rem;
  font-weight: 700;
  color: #111111;
}

.page-header p {
  color: #666666;
  margin-top: 6px;
}

.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.cat-tag {
  padding: 8px 18px;
  background: #ffffff;
  border: 1px solid #dddddd;
  border-radius: 20px;
  font-size: 0.82rem;
  color: #555555;
  cursor: pointer;
}

.cat-tag.active {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
  font-weight: 600;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.work-card {
  background: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.work-card:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.05);
}

.work-img-placeholder {
  height: 220px;
  background: #f0f0f2;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888888;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.work-info {
  padding: 20px;
}

.work-cat {
  font-size: 0.75rem;
  color: #888888;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.work-title {
  font-size: 1.1rem;
  margin: 6px 0;
  color: #111111;
}

.work-desc {
  font-size: 0.85rem;
  color: #666666;
}

.works-back {
  text-align: center;
  margin-top: 60px;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  text-align: center;
  padding: 50px 32px;
  font-size: 0.82rem;
  color: #888888;
  border-top: 1px solid #eeeeee;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
  .nav {
    display: none;
  }
   .btn-contact {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  .company-list {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 24px;
  }
  .company-list dt {
    margin-top: 12px;
  }

  /* ▼ スマホでの崩れ（不自然な改行）を抑える追加設定 ▼ */
　/* ITEMS（丸いバッジ）をスマホで横3列に並べる指定 */
  .items-grid {
    grid-template-columns: repeat(3, 1fr) !important; /* 横に3個並べる */
    gap: 12px !important;                             /* すき間を小さく調整 */
  }

  .item-circle {
    font-size: 0.75rem !important;                    /* 丸の中の文字サイズ調整 */
  }
  /* サブタイトル：文字サイズと間の隙間を小さくして1行に収める */
  .hero-subtitle {
    font-size: 0.75rem !important;
    gap: 0.8em !important;
    letter-spacing: 0.08em !important;
  }

  /* 単語の途中で変に改行されるのを防ぐ */
  .hero-subtitle span {
    white-space: nowrap;
  }

  /* メインロゴ：スマホ幅に収まるよう文字サイズを自動調整 */
  .hero-brand {
    font-size: clamp(2rem, 8.5vw, 3.5rem);
    flex-wrap: nowrap; /* 縦に2段になるのを防ぐ */
  }

  .hero-brand .brand-sub {
    font-size: 0.4em !important;
    white-space: nowrap;
  }
/* スマホ用CONTACTボタン */
.mobile-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  flex-shrink: 0;

  padding: 9px 15px;
  background: #111111;
  color: #ffffff;

  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;

  text-decoration: none;
  border-radius: 20px;
}