:root {
  --ink: #101820;
  --navy: #17263a;
  --blue: #4f6f91;
  --blue-soft: #dce7f1;
  --muted: #6f7882;
  --soft: #9aa3ad;
  --paper: #f5f7f9;
  --panel: #e9eef3;
  --line: #d5dde6;
  --line-soft: #e3e8ee;
  --white: #ffffff;
  --tag-bg: color-mix(in srgb, var(--white) 76%, var(--paper));
  --font-main: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-main);
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::selection {
  background: var(--navy);
  color: var(--white);
}

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

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

button {
  font: inherit;
}

.site-header {
  align-items: center;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  display: flex;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 72px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: var(--navy);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0;
}

.nav {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 13px;
  font-weight: 400;
  gap: clamp(18px, 4vw, 42px);
}

.nav a {
  transition: color 180ms ease;
}

.nav a:hover {
  color: var(--navy);
}

main {
  margin: 0 auto;
  max-width: 1520px;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(28px, 4.6vw, 70px);
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  min-height: min(820px, calc(100svh - 70px));
  padding: clamp(28px, 5.4vw, 76px) clamp(20px, 5vw, 72px) clamp(38px, 6vw, 86px);
}

.hero-copy {
  align-self: center;
  max-width: 540px;
  padding-bottom: clamp(8px, 3vw, 38px);
}

.eyebrow {
  color: var(--blue);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

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

h1 {
  color: var(--navy);
  font-size: clamp(34px, 4.4vw, 62px);
  font-weight: 500;
  line-height: 1.13;
  margin-bottom: 20px;
  text-wrap: balance;
}

h2 {
  color: var(--navy);
  font-size: clamp(30px, 4.2vw, 58px);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 0;
}

h3 {
  color: var(--navy);
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
}

.hero-copy p:not(.eyebrow),
.about p,
.contact p,
.contact a {
  color: var(--muted);
  font-size: clamp(14px, 1.15vw, 16px);
  font-weight: 400;
  line-height: 1.78;
}

.hero-photo {
  align-self: center;
  display: grid;
  grid-template-rows: minmax(400px, min(60svh, 580px)) auto;
  margin: 0;
  max-width: 760px;
  width: 100%;
}

.hero-photo img {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  height: 100%;
  object-fit: cover;
  object-position: 50% 42%;
}

.hero-photo figcaption {
  color: var(--soft);
  font-size: 12px;
  font-weight: 400;
  padding-top: 14px;
  text-align: right;
}

.about {
  border-top: 1px solid var(--line);
  display: grid;
  gap: clamp(26px, 5vw, 86px);
  grid-template-columns: minmax(180px, 0.38fr) minmax(0, 1fr);
  padding: clamp(62px, 8vw, 116px) clamp(20px, 5vw, 72px);
}

.albums {
  background: color-mix(in srgb, var(--paper) 92%, var(--white));
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 16px;
  min-width: 0;
  padding: 20px clamp(20px, 5vw, 72px) 18px;
}

.albums .eyebrow {
  margin: 0;
}

.albums h2 {
  font-size: 18px;
  line-height: 1.2;
}

.section-head {
  align-items: baseline;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  min-width: 0;
}

.album-grid {
  display: flex;
  gap: 9px;
  min-width: 0;
  overflow-x: auto;
  padding: 0 0 6px;
  scrollbar-width: thin;
  width: 100%;
}

.album-card {
  align-items: baseline;
  background: color-mix(in srgb, var(--white) 86%, transparent);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  display: inline-flex;
  flex: 0 0 auto;
  gap: 8px;
  min-height: 38px;
  padding: 7px 12px 7px 8px;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  white-space: nowrap;
}

.album-card:hover {
  background: var(--white);
  border-color: color-mix(in srgb, var(--blue) 42%, var(--line));
  box-shadow: 0 14px 34px color-mix(in srgb, var(--navy) 8%, transparent);
  transform: translateY(-1px);
}

.album-card p,
.album-card span,
.event-heading p,
.event-heading span {
  align-items: center;
  background: var(--tag-bg);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--muted);
  display: inline-flex;
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  min-height: 25px;
  padding: 6px 10px;
  width: fit-content;
}

.album-card p,
.album-card span,
.event-heading p,
.event-heading span {
  margin: 0;
}

.album-card h3 {
  color: var(--navy);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  margin: 0;
  min-width: 0;
}

.album-card span {
  color: var(--soft);
}

.work-header {
  align-items: end;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 54px clamp(20px, 5vw, 72px) 26px;
}

.filters {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: flex-end;
  max-width: 760px;
}

.filter-button {
  align-items: center;
  background: color-mix(in srgb, var(--white) 84%, transparent);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  font-size: 12px;
  font-weight: 500;
  gap: 6px;
  line-height: 1;
  min-height: 30px;
  padding: 7px 11px;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms ease;
  white-space: nowrap;
}

.filter-button::before {
  background: color-mix(in srgb, var(--soft) 50%, transparent);
  border-radius: 999px;
  content: "";
  height: 5px;
  width: 5px;
}

.filter-button.active {
  background: var(--white);
  border-color: var(--navy);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--navy) 10%, transparent);
  color: var(--navy);
}

.filter-button.active::before {
  background: var(--navy);
}

.filter-button:hover {
  background: var(--white);
  border-color: color-mix(in srgb, var(--blue) 58%, var(--line));
  color: var(--navy);
  transform: translateY(-1px);
}

.event-section {
  border-top: 1px solid var(--line);
  padding: clamp(50px, 7vw, 92px) clamp(20px, 5vw, 72px) 0;
}

.event-section.hidden {
  display: none;
}

.event-heading {
  align-items: end;
  display: grid;
  gap: 18px;
  grid-template-columns: 130px minmax(0, 1fr) auto;
  margin-bottom: 28px;
}

.event-heading h2 {
  font-size: clamp(34px, 5vw, 70px);
}

.gallery {
  column-count: 3;
  column-gap: clamp(14px, 1.7vw, 24px);
  padding: 0 0 clamp(64px, 8vw, 112px);
}

.compact-gallery {
  column-count: 2;
}

.photo-grid {
  display: grid;
  grid-auto-flow: dense;
  grid-auto-rows: clamp(58px, 5.4vw, 82px);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(7px, 0.9vw, 12px);
  padding: 0 0 clamp(64px, 8vw, 112px);
}

.photo-grid .photo-card {
  display: block;
  grid-column: span 2;
  grid-row: span 2;
  margin: 0;
  min-height: 0;
  width: auto;
}

.photo-grid .photo-card.sea-wide,
.photo-grid .photo-card.mosaic-wide {
  grid-column: span 4;
  grid-row: span 2;
}

.photo-grid .photo-card.mosaic-panorama {
  grid-column: span 6;
  grid-row: span 2;
}

.photo-grid .photo-card.sea-tall,
.photo-grid .photo-card.mosaic-tall {
  grid-column: span 2;
  grid-row: span 4;
}

.photo-grid .photo-card.mosaic-portrait {
  grid-column: span 3;
  grid-row: span 5;
}

.photo-grid .photo-card.mosaic-square {
  grid-column: span 3;
  grid-row: span 3;
}

.photo-grid .photo-card.sea-large,
.photo-grid .photo-card.mosaic-large {
  grid-column: span 4;
  grid-row: span 4;
}

.photo-grid .photo-card.mosaic-hero {
  grid-column: span 6;
  grid-row: span 5;
}

.photo-grid .photo-button {
  border-color: color-mix(in srgb, var(--line-soft) 78%, transparent);
  border-radius: 4px;
  box-shadow: none;
  height: 100%;
}

.photo-grid .photo-button img {
  height: 100%;
  object-fit: cover;
}

.photo-grid .photo-meta {
  display: none;
}

.photo-card {
  break-inside: avoid;
  display: inline-block;
  margin: 0 0 clamp(14px, 1.7vw, 24px);
  min-width: 0;
  width: 100%;
}

.photo-card.hidden {
  display: none;
}

.photo-card.wide {
  width: 100%;
}

.photo-card.tall {
  width: 100%;
}

.photo-button {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  cursor: zoom-in;
  overflow: hidden;
  padding: 0;
  width: 100%;
}

.photo-button img {
  height: auto;
  object-fit: contain;
  transition: filter 260ms ease, transform 260ms ease;
}

.photo-button:hover img {
  filter: saturate(0.92) contrast(1.06) brightness(0.98);
  transform: scale(1.012);
}

.photo-meta {
  align-items: baseline;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.photo-meta h3 {
  display: none;
}

.photo-meta p {
  color: var(--soft);
  font-size: 12px;
  font-weight: 400;
  margin-bottom: 0;
  white-space: nowrap;
}

.about h2 {
  color: color-mix(in srgb, var(--navy) 86%, var(--muted));
  font-size: clamp(22px, 2.4vw, 34px);
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 0;
  max-width: 720px;
  text-wrap: balance;
}

.about > div {
  align-self: end;
}

.about p:not(.eyebrow) {
  max-width: 760px;
}

.contact {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 28px clamp(20px, 5vw, 72px) 42px;
}

.contact p {
  margin-bottom: 0;
}

.contact a {
  color: var(--navy);
  font-size: 15px;
  font-weight: 500;
}

.lightbox {
  align-items: center;
  background: rgba(12, 22, 36, 0.94);
  display: grid;
  inset: 0;
  justify-items: center;
  padding: 28px;
  position: fixed;
  z-index: 30;
}

.lightbox[hidden] {
  display: none;
}

.lightbox img {
  max-height: 78svh;
  max-width: min(1120px, 92vw);
  object-fit: contain;
}

.lightbox-close {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  color: var(--white);
  cursor: pointer;
  font-size: 30px;
  height: 46px;
  line-height: 1;
  position: absolute;
  right: 24px;
  top: 24px;
  width: 46px;
}

.lightbox-caption {
  color: var(--white);
  margin-top: 18px;
  text-align: center;
}

.lightbox-caption h2 {
  color: var(--white);
  display: none;
  font-size: 28px;
  font-weight: 500;
}

.lightbox-caption p {
  color: #cbd6e2;
  font-weight: 400;
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .hero,
  .about {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    max-width: 680px;
    padding-bottom: 0;
  }

  .hero-photo {
    grid-template-rows: minmax(340px, 54svh) auto;
    max-width: none;
  }

  .work-header {
    align-items: start;
    flex-direction: column;
  }

  .filters {
    justify-content: flex-start;
  }

  .gallery {
    column-count: 2;
  }

  .photo-grid {
    grid-auto-rows: clamp(54px, 7.4vw, 76px);
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .photo-grid .photo-card,
  .photo-grid .photo-card.sea-tall,
  .photo-grid .photo-card.mosaic-tall {
    grid-column: span 2;
    grid-row: span 3;
  }

  .photo-grid .photo-card.sea-wide,
  .photo-grid .photo-card.sea-large,
  .photo-grid .photo-card.mosaic-wide,
  .photo-grid .photo-card.mosaic-large,
  .photo-grid .photo-card.mosaic-panorama,
  .photo-grid .photo-card.mosaic-portrait,
  .photo-grid .photo-card.mosaic-square,
  .photo-grid .photo-card.mosaic-hero {
    grid-column: span 4;
    grid-row: span 3;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 18px 20px;
  }

  .nav {
    gap: 18px;
  }

  .hero {
    gap: 24px;
    padding: 28px 20px 42px;
  }

  h1 {
    font-size: 31px;
    line-height: 1.18;
    margin-bottom: 16px;
  }

  h2 {
    font-size: 31px;
  }

  .hero-photo {
    grid-template-rows: minmax(280px, 48svh) auto;
  }

  .work-header,
  .about {
    padding-left: 20px;
    padding-right: 20px;
  }

  .albums {
    padding-left: 20px;
    padding-right: 20px;
  }

  .gallery {
    column-count: 1;
  }

  .photo-grid {
    gap: 6px;
    grid-auto-rows: clamp(46px, 16vw, 68px);
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .photo-grid .photo-card,
  .photo-grid .photo-card.sea-wide,
  .photo-grid .photo-card.mosaic-wide,
  .photo-grid .photo-card.mosaic-panorama,
  .photo-grid .photo-card.mosaic-square {
    grid-column: span 2;
    grid-row: span 2;
  }

  .photo-grid .photo-card.sea-tall,
  .photo-grid .photo-card.mosaic-tall,
  .photo-grid .photo-card.mosaic-portrait {
    grid-column: span 2;
    grid-row: span 3;
  }

  .photo-grid .photo-card.sea-large,
  .photo-grid .photo-card.mosaic-large,
  .photo-grid .photo-card.mosaic-hero {
    grid-column: span 4;
    grid-row: span 3;
  }

  .event-section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .event-heading {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .photo-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .contact {
    align-items: flex-start;
    flex-direction: column;
    padding-left: 20px;
    padding-right: 20px;
  }
}