:root {
  --ink: #17212b;
  --muted: #5f6d78;
  --paper: #f6f8f6;
  --soft: #edf4ef;
  --line: #dbe3dd;
  --white: #ffffff;
  --navy: #0d2838;
  --navy-deep: #071923;
  --green: #1f7a58;
  --green-dark: #13523b;
  --amber: #f2aa3b;
  --red: #d94031;
  --shadow: 0 22px 56px rgba(7, 25, 35, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--white);
  letter-spacing: 0;
}

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

img {
  display: block;
  max-width: 100%;
}

p {
  line-height: 1.72;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(219, 227, 221, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(135deg, var(--red), var(--amber));
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 19px;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 15px;
  white-space: nowrap;
}

.header-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 8px;
  color: var(--white);
  background: var(--green);
  font-weight: 900;
  white-space: nowrap;
}

.hero {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  background: var(--navy);
}

.hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 18, 27, 0.9), rgba(5, 18, 27, 0.63) 48%, rgba(5, 18, 27, 0.08) 82%),
    linear-gradient(0deg, rgba(5, 18, 27, 0.68), rgba(5, 18, 27, 0) 46%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 40px));
  padding: 132px 0 112px;
  margin-left: max(24px, calc((100vw - 1160px) / 2));
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
}

.hero h1,
.section h2,
.contact-band h2 {
  margin: 0;
  letter-spacing: 0;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(42px, 6.6vw, 76px);
  line-height: 1.04;
}

.hero-copy {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 19px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 900;
}

.button-call {
  color: #111;
  background: var(--amber);
}

.button-outline {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.1);
}

.button-outline.light {
  color: var(--white);
}

.keyword-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.keyword-strip span {
  padding: 9px 12px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 14px;
  font-weight: 800;
}

.hero-card {
  position: absolute;
  right: max(24px, calc((100vw - 1160px) / 2));
  bottom: 54px;
  z-index: 1;
  width: min(320px, calc(100% - 48px));
  padding: 24px;
  border-radius: 8px;
  color: var(--white);
  background: rgba(7, 25, 35, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-card strong {
  display: block;
  font-size: 22px;
}

.hero-card p {
  margin: 10px 0 18px;
  color: rgba(255, 255, 255, 0.82);
}

.hero-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 50px;
  border-radius: 8px;
  background: var(--green);
  font-weight: 900;
}

.quick-band {
  background: var(--navy-deep);
  color: var(--white);
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.quick-grid a {
  min-height: 92px;
  padding: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.quick-grid a:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.quick-grid strong,
.quick-grid span {
  display: block;
}

.quick-grid strong {
  font-size: 19px;
}

.quick-grid span {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.section {
  padding: 96px 0;
}

.section-soft {
  background: var(--paper);
}

.section-dark {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(13, 40, 56, 0.96), rgba(19, 82, 59, 0.92)),
    var(--navy);
}

.section-head {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-head h2,
.split h2,
.price-layout h2,
.contact-band h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.14;
}

.section-head p:not(.eyebrow),
.split p,
.price-layout p,
.contact-band p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.section-dark .section-head p:not(.eyebrow),
.section-dark .split p {
  color: rgba(255, 255, 255, 0.76);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.service-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-card span {
  color: var(--green);
  font-weight: 900;
}

.service-card h3 {
  margin: 16px 0 10px;
  font-size: 24px;
}

.service-card p {
  margin: 0;
  color: var(--muted);
}

.split,
.price-layout,
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: start;
}

.step-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.step-list li {
  position: relative;
  padding: 22px 22px 22px 68px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  counter-increment: steps;
}

.step-list li::before {
  content: counter(steps);
  position: absolute;
  left: 22px;
  top: 22px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  color: #111;
  background: var(--amber);
  font-weight: 900;
}

.step-list strong,
.step-list span {
  display: block;
}

.step-list span {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.6;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.case-grid figure {
  position: relative;
  min-height: 360px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--navy);
}

.case-grid img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  transition: transform 280ms ease;
}

.case-grid figure:hover img {
  transform: scale(1.035);
}

.case-grid figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 18px;
  color: var(--white);
  background: linear-gradient(0deg, rgba(7, 25, 35, 0.9), rgba(7, 25, 35, 0));
}

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

.case-grid span {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.45;
}

.price-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.price-points div,
.area-grid article {
  padding: 24px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}

.price-points strong,
.price-points span {
  display: block;
}

.price-points strong {
  font-size: 20px;
}

.price-points span {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.area-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.area-grid h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.area-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.faq-section {
  padding-top: 40px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 900;
}

details p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
}

.contact-band {
  padding: 76px 0;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--green-dark));
}

.contact-band p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-layout {
  align-items: center;
}

.contact-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.site-footer {
  padding: 36px 0 108px;
  color: rgba(255, 255, 255, 0.72);
  background: var(--navy-deep);
}

.footer-layout {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.site-footer strong {
  color: var(--white);
}

.site-footer p {
  margin: 8px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 14px;
}

.sticky-call {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 30;
  width: min(520px, calc(100% - 32px));
  transform: translateX(-50%);
}

.sticky-call a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 12px 18px;
  border-radius: 8px;
  color: #111;
  background: var(--amber);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 18px 48px rgba(7, 25, 35, 0.28);
}

.sticky-call span,
.sticky-call strong {
  display: block;
}

.sticky-call span {
  color: rgba(17, 17, 17, 0.66);
  font-size: 13px;
  font-weight: 800;
}

.sticky-call strong {
  font-size: 22px;
  font-weight: 950;
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 18px;
  }

  .site-nav {
    display: none;
  }

  .header-call {
    padding: 0 12px;
    font-size: 14px;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    width: min(100% - 36px, 680px);
    margin: 0 auto;
    padding: 96px 0 32px;
  }

  .hero h1 {
    font-size: clamp(38px, 12vw, 62px);
  }

  .hero-card {
    display: none;
  }

  .quick-grid,
  .service-grid,
  .price-layout,
  .split,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .quick-grid {
    width: 100%;
  }

  .quick-grid a {
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .area-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, 1160px);
  }

  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .header-call {
    min-height: 40px;
  }

  .hero-content {
    padding-top: 72px;
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .keyword-strip span {
    font-size: 13px;
  }

  .quick-grid,
  .price-points,
  .case-grid,
  .area-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 0;
  }

  .service-card,
  .price-points div,
  .area-grid article {
    padding: 22px;
  }

  .case-grid figure,
  .case-grid img {
    min-height: 300px;
  }

  .footer-layout {
    display: grid;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .sticky-call {
    bottom: 12px;
  }
}