:root {
  --ink: #202020;
  --muted: #626262;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --line: #e6dfdc;
  --forest: #e30613;
  --forest-dark: #7b1016;
  --gold: #b58b58;
  --coral: #c9141d;
  --mist: #f7eeee;
  --shadow: 0 18px 50px rgba(123, 16, 22, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Noto Sans HK",
    "Noto Sans TC",
    "Microsoft JhengHei",
    "PingFang HK",
    "Heiti TC",
    Arial,
    sans-serif;
  line-height: 1.65;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

p {
  margin-bottom: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 14px 6vw;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  background: rgba(123, 16, 22, 0.72);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(251, 250, 244, 0.94);
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #e30613, #8d1118);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  letter-spacing: 0;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand small {
  margin-top: 2px;
  font-size: 0.76rem;
  color: currentColor;
  opacity: 0.72;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  min-width: 58px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  text-align: center;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  outline: none;
  background: rgba(255, 255, 255, 0.18);
}

.site-header.is-scrolled .site-nav a:hover,
.site-header.is-scrolled .site-nav a:focus-visible {
  background: var(--mist);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  color: currentColor;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  padding: 112px 6vw 76px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(18, 20, 24, 0.46), rgba(18, 20, 24, 0.2) 44%, rgba(18, 20, 24, 0.04) 72%),
    linear-gradient(180deg, rgba(227, 6, 19, 0.08), rgba(123, 16, 22, 0.02)),
    url("./assets/hero-hk-founder-studio-v2.png") center / cover no-repeat;
}

.hero-content {
  width: min(720px, 100%);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.26);
}

.eyebrow,
.section-kicker {
  margin-bottom: 14px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  margin-bottom: 6px;
  font-size: 3.8rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-name {
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.12rem;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.14rem;
}

.hero-actions,
.contact-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  outline: none;
  transform: translateY(-1px);
}

.button.primary {
  color: #fff;
  background: var(--coral);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #a80f16;
}

.button.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.08);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  background: rgba(255, 255, 255, 0.18);
}

.section-wrap {
  width: min(1120px, calc(100% - 12vw));
  margin: 0 auto;
  padding: 88px 0;
}

.band {
  background: var(--surface);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.3rem;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.body-copy p + p,
.principle-list p + p {
  margin-top: 20px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading p:not(.section-kicker) {
  color: var(--muted);
}

.section-heading.compact {
  margin-bottom: 26px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  min-height: 252px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 28px rgba(23, 33, 28, 0.06);
}

.service-card p,
.method-list p,
.case-copy p,
.principle-list p,
.contact p {
  color: var(--muted);
}

.card-icon {
  position: relative;
  display: block;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border-radius: 8px;
  background: var(--mist);
}

.tool-icon::before,
.training-icon::before,
.case-icon::before,
.rhythm-icon::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 2px solid var(--forest);
  border-radius: 5px;
}

.tool-icon::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 9px;
  width: 16px;
  height: 10px;
  border-left: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
}

.training-icon::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 14px;
  width: 18px;
  height: 12px;
  border-top: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
}

.case-icon::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
}

.rhythm-icon::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 12px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  border-left-color: transparent;
}

.method-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.method-list li {
  padding-top: 20px;
  border-top: 2px solid var(--gold);
}

.method-list span {
  display: block;
  margin-bottom: 16px;
  color: var(--forest);
  font-weight: 800;
}

.case-section {
  padding-top: 94px;
  padding-bottom: 96px;
}

.case-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 42px;
  align-items: stretch;
  padding-left: 32px;
  border-left: 6px solid var(--forest);
}

.case-copy p + p {
  margin-top: 18px;
}

.case-facts {
  display: grid;
  gap: 14px;
  align-content: center;
}

.case-facts div {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.case-facts strong,
.case-facts span {
  display: block;
}

.case-facts strong {
  font-size: 1.18rem;
  color: var(--forest-dark);
}

.case-facts span {
  margin-top: 4px;
  color: var(--muted);
}

.principles {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle-list strong {
  color: var(--ink);
}

.contact {
  background: var(--forest-dark);
  color: #fff;
}

.contact .section-wrap {
  padding-top: 72px;
  padding-bottom: 72px;
}

.contact-wrap {
  justify-content: space-between;
}

.contact-wrap > div {
  max-width: 720px;
}

.contact p {
  color: rgba(255, 255, 255, 0.78);
}

.contact .section-kicker {
  color: #e1be70;
}

.contact-note {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 6vw;
  color: rgba(255, 255, 255, 0.72);
  background: #4d090d;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .site-header {
    padding: 12px 5vw;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 5vw 16px;
    color: var(--ink);
    background: rgba(251, 250, 244, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    text-align: left;
  }

  .hero {
    min-height: 500px;
    padding: 94px 5vw 58px;
    background:
      linear-gradient(90deg, rgba(18, 20, 24, 0.5), rgba(18, 20, 24, 0.26) 54%, rgba(18, 20, 24, 0.08)),
      linear-gradient(180deg, rgba(227, 6, 19, 0.08), rgba(123, 16, 22, 0.02)),
      url("./assets/hero-hk-founder-studio-v2.png") 74% center / cover no-repeat;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .section-wrap {
    width: min(100% - 10vw, 720px);
    padding: 66px 0;
  }

  .two-column,
  .case-panel {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .service-grid,
  .method-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-panel {
    padding-left: 24px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .brand strong {
    font-size: 0.9rem;
  }

  .brand small {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hero {
    min-height: 480px;
    padding-bottom: 46px;
  }

  .hero-content {
    max-width: 340px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-actions {
    align-items: stretch;
  }

  .button,
  .contact-note {
    width: 100%;
  }

  h2 {
    font-size: 1.68rem;
  }

  .service-grid,
  .method-list {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .case-panel {
    padding-left: 18px;
  }
}