:root {
  --stellar-white: #fafbff;
  --cosmos: #07122e;
  --galactic: #245bff;
  --ice: #82c7ff;
  --silver: #dce4f2;
  --moon: #6d7488;
  --ink: #080a12;
  --line: rgba(7, 18, 46, 0.14);
  --glass: rgba(250, 251, 255, 0.78);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--stellar-white);
  color: var(--cosmos);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
  line-height: 1.7;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(20px, 4vw, 56px);
  background: rgba(250, 251, 255, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand-mark {
  width: clamp(132px, 16vw, 210px);
  flex: 0 0 auto;
}

.brand-mark img,
.site-footer img {
  width: 100%;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(12px, 2.4vw, 28px);
  color: rgba(7, 18, 46, 0.82);
  font-size: 14px;
  letter-spacing: 0;
  white-space: nowrap;
}

.site-nav a {
  padding: 8px 0;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover {
  border-color: var(--galactic);
  color: var(--galactic);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  padding: clamp(92px, 11vw, 150px) clamp(22px, 5vw, 72px) clamp(70px, 8vw, 112px);
  background-color: var(--stellar-white);
  background-position: center;
  background-size: cover;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(250, 251, 255, 0.34);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  left: clamp(24px, 5vw, 80px);
  bottom: clamp(28px, 4vw, 56px);
  width: clamp(96px, 16vw, 210px);
  height: 1px;
  background: var(--galactic);
  box-shadow: 0 0 28px rgba(36, 91, 255, 0.46);
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  padding-top: 42px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--galactic);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Times New Roman", "Noto Serif TC", "Songti TC", serif;
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(72px, 13vw, 184px);
  color: var(--cosmos);
  text-shadow: 0 10px 34px rgba(130, 199, 255, 0.44);
}

h2 {
  font-size: clamp(34px, 6vw, 72px);
}

h3 {
  font-size: clamp(24px, 3vw, 34px);
}

.lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(7, 18, 46, 0.82);
  font-size: clamp(18px, 2vw, 24px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--cosmos);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.primary-action {
  background: var(--cosmos);
  color: var(--stellar-white);
  box-shadow: 0 16px 36px rgba(36, 91, 255, 0.18);
}

.secondary-action {
  background: rgba(250, 251, 255, 0.72);
  color: var(--cosmos);
}

.intro-band {
  padding: clamp(26px, 4vw, 46px) clamp(22px, 5vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.intro-band p {
  width: min(var(--max), 100%);
  margin: 0 auto;
  color: rgba(7, 18, 46, 0.78);
  font-size: clamp(18px, 2vw, 26px);
  font-family: "Noto Serif TC", "Songti TC", serif;
}

.section {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(72px, 10vw, 124px) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: clamp(22px, 5vw, 80px);
  align-items: end;
  margin-bottom: clamp(30px, 5vw, 56px);
}

.section-heading .eyebrow {
  align-self: start;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service-item {
  min-height: 320px;
  padding: clamp(24px, 3vw, 38px);
  background: linear-gradient(135deg, #ffffff, #f3f7ff);
}

.service-item span {
  display: block;
  margin-bottom: 54px;
  color: var(--galactic);
  font-family: "Times New Roman", serif;
  font-size: 42px;
  line-height: 1;
}

.service-item p,
.copy-panel p,
.feature-copy p,
.contact-section p {
  color: rgba(7, 18, 46, 0.74);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
}

.image-panel,
.gallery-grid figure,
.dm-strip img {
  overflow: hidden;
  border: 1px solid rgba(7, 18, 46, 0.1);
  background: #ffffff;
  box-shadow: 0 18px 46px rgba(7, 18, 46, 0.08);
}

.image-panel img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.copy-panel {
  padding: 8px 0;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding-left: 24px;
  position: relative;
  color: rgba(7, 18, 46, 0.76);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 8px;
  background: var(--galactic);
  transform: rotate(45deg);
  box-shadow: 0 0 16px rgba(36, 91, 255, 0.45);
}

.feature-hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: end;
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.feature-copy {
  position: relative;
  z-index: 1;
  width: min(680px, calc(100% - 44px));
  margin: 0 auto clamp(38px, 8vw, 88px);
  padding: clamp(24px, 4vw, 42px);
  background: rgba(250, 251, 255, 0.82);
  border: 1px solid rgba(220, 228, 242, 0.86);
  backdrop-filter: blur(16px);
}

.gallery-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.gallery-controls button {
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid rgba(7, 18, 46, 0.18);
  border-radius: 999px;
  background: #ffffff;
  color: var(--cosmos);
  cursor: pointer;
}

.gallery-controls button.active {
  border-color: var(--galactic);
  background: var(--cosmos);
  color: var(--stellar-white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.gallery-grid figure {
  margin: 0;
}

.gallery-grid figure.hidden {
  display: none;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.gallery-grid figcaption {
  padding: 12px 14px;
  color: rgba(7, 18, 46, 0.7);
  font-size: 14px;
}

.dm-section {
  padding-top: 20px;
}

.dm-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.dm-strip img {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

.contact-section {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto clamp(72px, 10vw, 120px);
  display: grid;
  grid-template-columns: 0.9fr 1fr auto;
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
  padding: clamp(32px, 5vw, 56px);
  border: 1px solid var(--line);
  background: #ffffff;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: 44px 22px 54px;
  border-top: 1px solid var(--line);
  background: #f4f7ff;
  text-align: center;
}

.site-footer img {
  width: min(300px, 62vw);
}

.site-footer p {
  margin: 0;
  color: rgba(7, 18, 46, 0.62);
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 82vh;
    background-position: 58% center;
  }

  .section-heading,
  .split-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

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

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

  .service-item span {
    margin-bottom: 30px;
  }

  .feature-copy {
    width: calc(100% - 32px);
  }

  .dm-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 68px;
    padding: 10px 16px;
  }

  .site-nav {
    gap: 16px;
    font-size: 13px;
  }

  .hero {
    min-height: 78vh;
    padding: 92px 20px 76px;
    background-position: 64% center;
  }

  h1 {
    font-size: clamp(60px, 20vw, 96px);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    max-width: 260px;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .section {
    width: calc(100% - 32px);
  }

  .dm-strip {
    grid-template-columns: 1fr;
  }
}