/* ============================================================
   WELDOW — style.css
   Design: Minimal White × Black Header × Premium Typography
   Inspired by: BALMUDA aesthetic
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --black:   #111111;
  --gray-90: #222222;
  --gray-70: #555555;
  --gray-50: #888888;
  --gray-30: #bbbbbb;
  --gray-10: #eeeeee;
  --gray-05: #f5f5f5;
  --white:   #ffffff;
  --accent:  #111111;

  --font-ja: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --font-en: 'Inter', 'DM Sans', sans-serif;

  --header-h: 60px;
  --max-w: 1080px;
  --pad: 0 40px;

  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font-ja);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--gray-05); }
::-webkit-scrollbar-thumb { background: var(--gray-30); }

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad);
}
.section        { padding: 100px 0; }
.section--lg    { padding: 140px 0; }
.section--sm    { padding: 60px 0; }
.section--gray  { background: var(--gray-05); }
.section--black { background: var(--black); color: var(--white); }

/* ---------- Typography ---------- */
.en { font-family: var(--font-en); }

.section-label {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray-50);
  display: block;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 20px;
}
.section-title strong {
  font-weight: 700;
}
.section-sub {
  font-size: 0.92rem;
  color: var(--gray-70);
  line-height: 2;
  max-width: 520px;
}

.ja-en-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 40px;
}
.ja-en-heading .en-title {
  font-family: var(--font-en);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.ja-en-heading .ja-sub {
  font-size: 0.82rem;
  color: var(--gray-50);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--black);
  display: flex;
  align-items: center;
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--pad);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-en);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
}
.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
  letter-spacing: 0.03em;
}
.nav-link:hover { color: var(--white); }
.nav-link.active { color: var(--white); border-bottom: 1px solid rgba(255,255,255,0.5); padding-bottom: 2px; }
.nav-cta {
  font-size: 0.78rem;
  padding: 8px 20px;
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--white);
  border-radius: 2px;
  transition: var(--transition);
  letter-spacing: 0.05em;
}
.nav-cta:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}
.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--white);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h); left: 0; right: 0; bottom: 0;
  background: var(--black);
  z-index: 999;
  padding: 48px 40px;
  flex-direction: column;
  gap: 0;
  transform: translateX(100%);
  transition: transform 0.35s ease;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav-link {
  display: block;
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--white);
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  letter-spacing: 0.02em;
}
.mobile-nav-link.active { color: var(--white); border-bottom-color: rgba(255,255,255,0.3); }
.mobile-nav-cta {
  display: inline-block;
  margin-top: 32px;
  padding: 14px 32px;
  border: 1px solid var(--white);
  color: var(--white);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  text-align: center;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-black {
  background: var(--black);
  color: var(--white);
  padding: 14px 36px;
  border: 1px solid var(--black);
}
.btn-black:hover { background: var(--gray-90); border-color: var(--gray-90); }
.btn-outline {
  border: 1px solid var(--black);
  color: var(--black);
  padding: 14px 36px;
}
.btn-outline:hover { background: var(--black); color: var(--white); }
.btn-white {
  background: var(--white);
  color: var(--black);
  padding: 14px 36px;
  border: 1px solid var(--white);
}
.btn-white:hover { background: transparent; color: var(--white); }
.btn-text {
  color: var(--black);
  font-size: 0.82rem;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--black);
}
.btn-text:hover { color: var(--gray-70); border-color: var(--gray-70); }
.btn svg { width: 14px; height: 14px; }

/* ---------- Hero ---------- */
.hero {
  padding-top: var(--header-h);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--white);
  position: relative;
  overflow: hidden;
}
.hero-bg-text {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-size: clamp(120px, 18vw, 220px);
  font-weight: 900;
  color: var(--gray-10);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray-50);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--gray-30);
}
.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 12px;
}
.hero-title strong { font-weight: 700; }
.hero-title em {
  font-style: normal;
  border-bottom: 2px solid var(--black);
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--gray-70);
  line-height: 2;
  max-width: 480px;
  margin: 28px 0 44px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-note {
  font-size: 0.78rem;
  color: var(--gray-50);
  margin-top: 20px;
  letter-spacing: 0.02em;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--gray-10);
  border-left: 1px solid var(--gray-10);
  margin-top: 80px;
}
.hero-stat {
  padding: 32px 20px;
  border-right: 1px solid var(--gray-10);
  border-bottom: 1px solid var(--gray-10);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}
.hero-stat-label {
  font-size: 0.72rem;
  color: var(--gray-50);
  line-height: 1.55;
  margin-bottom: 14px;
}
.hero-stat-num {
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

/* ---------- Divider ---------- */
.divider {
  height: 1px;
  background: var(--gray-10);
}

/* ---------- Problem ---------- */
.problem-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 64px;
}
.problem-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--gray-10);
}
.problem-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-10);
  transition: var(--transition);
}
.problem-item:hover { background: var(--gray-05); padding-left: 12px; padding-right: 12px; margin: 0 -12px; }
.problem-num {
  font-family: var(--font-en);
  font-size: 0.72rem;
  color: var(--gray-30);
  flex-shrink: 0;
  margin-top: 4px;
  letter-spacing: 0.05em;
}
.problem-text {
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- Services ---------- */
.services-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 64px;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
}
.service-card {
  background: var(--white);
  padding: 40px 36px;
  transition: var(--transition);
}
.service-card:hover { background: var(--gray-05); }
.service-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--gray-30);
  margin-bottom: 24px;
  display: block;
}
.service-en {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.service-ja {
  font-size: 0.78rem;
  color: var(--gray-50);
  margin-bottom: 20px;
}
.service-desc {
  font-size: 0.85rem;
  color: var(--gray-70);
  line-height: 1.8;
  margin-bottom: 24px;
}
.service-price {
  font-size: 0.78rem;
  color: var(--gray-50);
  padding-top: 20px;
  border-top: 1px solid var(--gray-10);
}
.service-price strong { color: var(--black); font-size: 0.9rem; }

/* ---------- Strengths ---------- */
.strengths-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
  margin-top: 64px;
}
.strength-item {
  background: var(--white);
  padding: 48px 44px;
}
.strength-item:hover { background: var(--gray-05); }
.strength-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--gray-30);
  margin-bottom: 20px;
  display: block;
}
.strength-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.5;
}
.strength-desc {
  font-size: 0.88rem;
  color: var(--gray-70);
  line-height: 1.9;
}

/* ---------- Results ---------- */
.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
  margin-top: 64px;
}
.result-item {
  background: var(--white);
  padding: 48px 32px;
  text-align: center;
}
.section--black .result-item { background: var(--black); }
.result-num {
  font-family: var(--font-en);
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.result-label {
  font-size: 0.8rem;
  color: var(--gray-70);
  line-height: 1.6;
}
.section--black .result-label { color: var(--gray-30); }
.result-note {
  font-size: 0.72rem;
  color: var(--gray-30);
  margin-top: 6px;
}

/* ---------- Cases ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 64px;
}
.case-card {
  border: 1px solid var(--gray-10);
}
.case-header {
  background: var(--black);
  color: var(--white);
  padding: 36px 36px 32px;
}
.case-category {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: var(--font-en);
  color: var(--gray-30);
  margin-bottom: 14px;
}
.case-headline {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
}
.case-body { padding: 32px 36px; }
.case-result-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-10);
}
.case-before, .case-after { text-align: center; flex: 1; }
.case-num {
  font-family: var(--font-en);
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.case-before .case-num { color: var(--gray-30); }
.case-num-label { font-size: 0.72rem; color: var(--gray-50); margin-top: 4px; }
.case-arrow { color: var(--gray-30); font-size: 1.2rem; font-family: var(--font-en); flex-shrink: 0; }
.case-desc { font-size: 0.87rem; color: var(--gray-70); line-height: 1.85; }
.case-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 20px; }
.case-tag {
  font-size: 0.72rem;
  padding: 4px 12px;
  border: 1px solid var(--gray-10);
  color: var(--gray-50);
  letter-spacing: 0.02em;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 64px;
}
.about-img-box {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--gray-05);
  border: 1px solid var(--gray-10);
  display: flex;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 80px;
}
.about-placeholder { text-align: center; color: var(--gray-30); font-size: 0.78rem; }
.about-placeholder .icon { font-size: 2.5rem; margin-bottom: 8px; }
.about-name { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; }
.about-name-en { font-family: var(--font-en); font-size: 0.82rem; color: var(--gray-50); margin-bottom: 24px; letter-spacing: 0.05em; }
.about-text {
  font-size: 0.92rem;
  color: var(--gray-70);
  line-height: 2;
  margin-bottom: 20px;
}
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.about-tag {
  font-size: 0.78rem;
  padding: 6px 14px;
  border: 1px solid var(--gray-10);
  color: var(--gray-70);
}

/* ---------- Target ---------- */
.target-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
  margin-top: 64px;
}
.target-box { background: var(--white); padding: 48px 44px; }
.target-box-title {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-en);
  color: var(--gray-50);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-10);
}
.target-list { display: flex; flex-direction: column; gap: 0; }
.target-list li {
  font-size: 0.9rem;
  color: var(--gray-70);
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-05);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  line-height: 1.6;
}
.target-list li::before { content: '—'; color: var(--gray-30); flex-shrink: 0; }
.target-list.bad li::before { content: '×'; color: var(--gray-30); }

/* ---------- CTA / Consultation ---------- */
.cta-block {
  background: var(--black);
  color: var(--white);
  padding: 100px 0;
  text-align: center;
}
.cta-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.cta-title strong { font-weight: 700; }
.cta-sub {
  font-size: 0.92rem;
  color: var(--gray-30);
  line-height: 2;
  margin-bottom: 44px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.cta-notes {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 28px;
  font-size: 0.78rem;
  color: var(--gray-50);
  flex-wrap: wrap;
}
.cta-notes span::before { content: '✓  '; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- FAQ ---------- */
.faq-inner { max-width: 720px; margin: 64px auto 0; }
.faq-item {
  border-bottom: 1px solid var(--gray-10);
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  text-align: left;
  font-size: 0.92rem;
  color: var(--black);
  background: transparent;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--gray-70); }
.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--black);
  transition: transform var(--transition), opacity var(--transition);
}
.faq-icon::before { width: 12px; height: 1px; }
.faq-icon::after { width: 1px; height: 12px; }
.faq-item.open .faq-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-a-inner {
  padding: 0 0 24px;
  font-size: 0.88rem;
  color: var(--gray-70);
  line-height: 1.9;
}

/* ---------- Page Hero (inner) ---------- */
.page-hero {
  padding: calc(var(--header-h) + 80px) 0 80px;
  border-bottom: 1px solid var(--gray-10);
}
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.75rem;
  color: var(--gray-50);
  margin-bottom: 36px;
}
.breadcrumb a { transition: color var(--transition); }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb span { color: var(--gray-30); }
.page-hero-en {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}
.page-hero-ja {
  font-size: 0.9rem;
  color: var(--gray-50);
  margin-bottom: 28px;
}
.page-hero-sub {
  font-size: 0.9rem;
  color: var(--gray-70);
  line-height: 2;
  max-width: 480px;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  margin-top: 64px;
  align-items: start;
}
.contact-info { position: sticky; top: 80px; }
.contact-info-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-10);
}
.contact-info-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-en);
  color: var(--gray-50);
  margin-bottom: 6px;
}
.contact-info-val { font-size: 0.9rem; color: var(--black); line-height: 1.7; }
.contact-note {
  font-size: 0.82rem;
  color: var(--gray-50);
  line-height: 1.9;
  margin-top: 28px;
  padding: 20px;
  background: var(--gray-05);
  border-left: 2px solid var(--gray-10);
}
.form-card {
  border: 1px solid var(--gray-10);
  padding: 48px;
}
.form-group { margin-bottom: 28px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--gray-70);
  margin-bottom: 8px;
}
.form-label .req { color: var(--black); margin-left: 2px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--gray-10);
  border-bottom-color: var(--gray-30);
  padding: 10px 0;
  color: var(--black);
  font-size: 0.92rem;
  font-family: var(--font-ja);
  outline: none;
  border-radius: 0;
  transition: border-color var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-bottom-color: var(--black);
}
.form-textarea {
  border: 1px solid var(--gray-10);
  padding: 12px;
  resize: vertical;
  min-height: 140px;
  transition: border-color var(--transition);
}
.form-textarea:focus { border-color: var(--gray-50); }
.form-select { appearance: none; cursor: pointer; background: transparent; border-left: none; border-right: none; border-top: none; }
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--gray-70);
  cursor: pointer;
}
.form-check input { width: 14px; height: 14px; margin-top: 3px; flex-shrink: 0; accent-color: var(--black); }

/* ---------- Works ---------- */
.works-filter {
  display: flex;
  gap: 0;
  margin: 48px 0 40px;
  border-bottom: 1px solid var(--gray-10);
}
.filter-btn {
  padding: 10px 20px;
  font-size: 0.8rem;
  color: var(--gray-50);
  letter-spacing: 0.05em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
}
.filter-btn:hover { color: var(--black); }
.filter-btn.active { color: var(--black); border-bottom-color: var(--black); }
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
}
.work-card {
  background: var(--white);
  transition: var(--transition);
}
.work-card:hover { background: var(--gray-05); }
.work-card-img {
  height: 160px;
  background: var(--gray-05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--gray-30);
  border-bottom: 1px solid var(--gray-10);
}
.work-card-body { padding: 24px; }
.work-category {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-50);
  margin-bottom: 8px;
}
.work-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}
.work-result { font-size: 0.82rem; color: var(--gray-70); line-height: 1.7; }
.work-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 14px; }
.work-tag {
  font-size: 0.7rem;
  padding: 3px 8px;
  border: 1px solid var(--gray-10);
  color: var(--gray-50);
}

/* ---------- About Page ---------- */
.profile-section {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 64px;
}
.profile-img-box {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--gray-05);
  border: 1px solid var(--gray-10);
  display: flex;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 80px;
}
.profile-placeholder { text-align: center; color: var(--gray-30); font-size: 0.75rem; }
.profile-placeholder .icon { font-size: 2rem; margin-bottom: 6px; }
.profile-name { font-size: 1.8rem; font-weight: 700; margin-bottom: 4px; }
.profile-name-en { font-family: var(--font-en); font-size: 0.8rem; color: var(--gray-50); letter-spacing: 0.08em; margin-bottom: 6px; }
.profile-role { font-size: 0.82rem; color: var(--gray-50); margin-bottom: 32px; }
.profile-text { font-size: 0.9rem; color: var(--gray-70); line-height: 2; margin-bottom: 20px; }
.profile-skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
  margin: 32px 0;
}
.skill-item {
  background: var(--white);
  padding: 12px 16px;
  font-size: 0.83rem;
  color: var(--gray-70);
}
.certifications { display: flex; gap: 8px; flex-wrap: wrap; }
.cert-badge {
  font-size: 0.78rem;
  padding: 6px 12px;
  border: 1px solid var(--gray-10);
  color: var(--gray-70);
}
.company-table { width: 100%; border-collapse: collapse; margin-top: 32px; }
.company-table th,
.company-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--gray-10);
  font-size: 0.88rem;
}
.company-table th { width: 140px; color: var(--gray-50); font-weight: 400; background: var(--gray-05); font-family: var(--font-en); font-size: 0.78rem; letter-spacing: 0.05em; }
.company-table td { color: var(--gray-70); }

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }

/* ---------- Footer ---------- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 72px 0 36px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}
.footer-tagline { font-size: 0.8rem; color: rgba(255,255,255,0.4); line-height: 1.8; }
.footer-col-title {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-link { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color var(--transition); }
.footer-link:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
}

/* ---------- Service Page Layouts ---------- */
/* サービスページ用レイアウトクラス（インラインstyle置き換え） */
.service-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 80px;
  align-items: start;
}
.seo-meo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
}
.faq-side-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.process-flow {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--gray-70);
}
.sns-result-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-10);
  border: 1px solid var(--gray-10);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root { --pad: 0 32px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .results-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .service-layout { grid-template-columns: 240px 1fr; gap: 48px; }
  .faq-side-grid { gap: 48px; }
}

@media (max-width: 768px) {
  :root { --pad: 0 20px; --header-h: 54px; }
  .section { padding: 60px 0; }
  .section--lg { padding: 80px 0; }
  .nav { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }
  .hero-title { font-size: 2rem; }
  .hero-bg-text { display: none; }
  .problem-header { grid-template-columns: 1fr; gap: 32px; }
  .services-header { grid-template-columns: 1fr; gap: 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .strengths-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .target-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-img-box { position: static; max-width: 240px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { position: static; }
  .profile-section { grid-template-columns: 1fr; }
  .profile-img-box { position: static; width: 180px; margin: 0 auto; }
  .profile-skills { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .form-card { padding: 28px 20px; }
  /* Service page */
  .service-layout { grid-template-columns: 1fr; gap: 36px; }
  .seo-meo-grid { grid-template-columns: 1fr; }
  .faq-side-grid { grid-template-columns: 1fr; gap: 40px; }
  .sns-result-2col { grid-template-columns: 1fr 1fr; }
  /* Page hero */
  .page-hero { padding: calc(var(--header-h) + 48px) 0 48px; }
  /* About page sticky */
  .about-img-box { position: static !important; }
  /* Service sidebar price compact */
  .service-layout > div:first-child { border-bottom: 1px solid var(--gray-10); padding-bottom: 32px; }
}

@media (max-width: 480px) {
  .results-grid { grid-template-columns: 1fr 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; }
  .cta-notes { flex-direction: column; gap: 8px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stat { padding: 24px 12px; }
  .hero-stat-num { font-size: 1.9rem; }
  .sns-result-2col { grid-template-columns: 1fr; }
  .works-filter { flex-wrap: wrap; gap: 0; }
  .filter-btn { font-size: 0.75rem; padding: 8px 14px; }
  .cta-block { padding: 72px 0; }
  .ja-en-heading { flex-direction: column; gap: 4px; }
}