:root {
  --paper: #f4f5f2;
  --paper-raised: #fbfbf9;
  --ink: #17201c;
  --ink-soft: #59635e;
  --line: #d7dcd7;
  --line-dark: #aeb7b1;
  --accent: #2d654f;
  --accent-soft: #e3ebe6;
  --shadow: 0 18px 55px rgba(23, 32, 28, 0.14);
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked {
  overflow: hidden;
}

::selection {
  color: var(--paper-raised);
  background: var(--accent);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

a {
  color: inherit;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--paper-raised);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  min-height: 76px;
  padding: 12px 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 245, 242, 0.96);
}

@supports (backdrop-filter: blur(16px)) {
  .site-header {
    background: rgba(244, 245, 242, 0.86);
    backdrop-filter: blur(16px);
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  width: 18px;
  height: 18px;
  border: 1px solid var(--ink);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark i::before,
.brand-mark i::after {
  position: absolute;
  content: "";
  background: var(--ink);
}

.brand-mark::before {
  top: 8px;
  left: 0;
  width: 100%;
  height: 1px;
}

.brand-mark::after {
  top: 0;
  left: 8px;
  width: 1px;
  height: 100%;
}

.brand-mark i::before {
  top: 3px;
  left: 3px;
  width: 3px;
  height: 3px;
}

.brand-mark i::after {
  right: 3px;
  bottom: 3px;
  width: 3px;
  height: 3px;
}

.brand-cn {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  line-height: 1;
}

.brand-en {
  padding-top: 2px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  line-height: 1;
}

.series-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
  min-width: 0;
}

.series-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 42px;
  padding: 0 12px;
  color: var(--ink-soft);
  font-size: 13px;
  text-decoration: none;
  transition: color 180ms ease, background-color 180ms ease;
}

.series-nav a::after {
  position: absolute;
  right: 10px;
  bottom: 4px;
  left: 10px;
  height: 1px;
  content: "";
  background: transparent;
}

.series-nav a:hover,
.series-nav a[aria-current="true"] {
  color: var(--ink);
}

.series-nav a[aria-current="true"]::after {
  background: var(--accent);
}

.share-button,
.text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: transparent;
  font-size: 13px;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.share-button:hover,
.text-button:hover {
  color: var(--paper-raised);
  background: var(--ink);
}

.share-button:active,
.text-button:active,
.icon-button:active {
  transform: scale(0.98);
}

main {
  overflow: clip;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(620px, 1.18fr);
  gap: 64px;
  width: min(1720px, 100%);
  min-height: 0;
  margin: 0 auto;
  padding: 78px 40px 64px;
}

.hero-copy {
  align-self: center;
  padding: 36px 0;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 28px;
  font-family: var(--serif);
  font-size: 6rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.04;
}

h1 span {
  color: var(--accent);
}

.hero-intro {
  max-width: 25rem;
  margin-bottom: 34px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.85;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  min-height: 44px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  text-decoration: none;
}

.hero-link svg {
  transition: transform 180ms ease;
}

.hero-link:hover svg {
  transform: translateX(5px);
}

.hero-visual {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: minmax(0, 1fr);
  align-self: center;
  gap: 10px;
  height: min(760px, calc(100svh - 190px));
  min-height: 560px;
}

.hero-tile {
  position: relative;
  display: grid;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: inherit;
  background: #eceeea;
  text-decoration: none;
}

.hero-tile:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.hero-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 160ms ease, transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-tile:hover img {
  transform: scale(1.025);
}

.hero-tile.is-switching img {
  opacity: 0.25;
}

.hero-tile-label {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--paper-raised);
  background: rgba(23, 32, 28, 0.88);
  font-family: var(--serif);
  font-size: 16px;
}

.series-index {
  width: min(1720px, 100%);
  margin: 0 auto;
  padding: 92px 40px 72px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: 2.4rem;
  font-weight: 400;
}

.section-heading p {
  margin-bottom: 4px;
  color: var(--ink-soft);
  font-size: 13px;
}

.series-index-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.series-index-link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  min-height: 138px;
  padding: 22px 18px 20px;
  border-right: 1px solid var(--line);
  text-decoration: none;
  transition: background-color 180ms ease;
}

.series-index-link:last-child {
  border-right: 0;
}

.series-index-link:hover {
  background: var(--accent-soft);
}

.index-letter {
  font-family: var(--serif);
  font-size: 3.5rem;
  line-height: 0.88;
}

.index-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.index-copy strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
}

.index-copy span {
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.55;
}

.series-list {
  width: min(1720px, 100%);
  margin: 0 auto;
  padding: 0 40px 48px;
}

.series-section {
  padding: 24px 0 104px;
  scroll-margin-top: 98px;
}

.series-header {
  display: grid;
  grid-template-columns: minmax(210px, 0.8fr) minmax(280px, 1.1fr) minmax(180px, 0.55fr) auto;
  gap: 28px;
  align-items: end;
  padding: 28px 0 30px;
  border-top: 1px solid var(--ink);
}

.series-heading {
  display: flex;
  align-items: flex-end;
  gap: 22px;
}

.series-letter {
  font-family: var(--serif);
  font-size: 5.8rem;
  font-weight: 400;
  line-height: 0.8;
}

.series-heading h2 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 1.9rem;
  font-weight: 500;
}

.series-heading p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.series-specs {
  display: grid;
  grid-template-columns: minmax(160px, 1.15fr) minmax(120px, 0.7fr);
  gap: 20px;
  margin: 0;
}

.series-specs div {
  min-width: 0;
}

.series-specs dt {
  margin-bottom: 10px;
  color: var(--ink-soft);
  font-size: 11px;
}

.series-specs dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
}

.weight-value {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}

.weight-number {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 400;
  line-height: 1;
}

.weight-unit {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 500;
}

.series-count {
  margin: 0 0 2px;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: right;
  white-space: nowrap;
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 30px 16px;
}

.pattern-card {
  display: block;
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: zoom-in;
}

.pattern-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: #ebedE9;
}

.pattern-media::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(23, 32, 28, 0.05);
}

.pattern-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.985);
  transition: opacity 400ms ease, transform 480ms cubic-bezier(0.16, 1, 0.3, 1);
}

.pattern-card.is-loaded .pattern-media img {
  opacity: 1;
  transform: scale(1);
}

.pattern-card:hover .pattern-media img {
  transform: scale(1.015);
}

.pattern-loader {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, #e9ebe7 20%, #f5f6f3 38%, #e9ebe7 56%);
  background-size: 220% 100%;
  animation: shimmer 1.5s linear infinite;
}

.pattern-card.is-loaded .pattern-loader,
.pattern-card.is-error .pattern-loader {
  display: none;
}

.pattern-card.is-error .pattern-media::before {
  position: absolute;
  z-index: 1;
  content: "图片载入失败";
  color: var(--ink-soft);
  font-size: 12px;
}

.pattern-caption {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-height: 38px;
  padding-top: 10px;
  border-bottom: 1px solid transparent;
  color: var(--ink-soft);
  font-size: 11px;
  transition: border-color 180ms ease, color 180ms ease;
}

.pattern-card:hover .pattern-caption {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.pattern-caption span:last-child {
  color: var(--accent);
}

@keyframes shimmer {
  to {
    background-position-x: -220%;
  }
}

.collection-end {
  display: grid;
  justify-items: center;
  width: min(1720px, 100%);
  margin: 0 auto;
  padding: 120px 24px 132px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.end-intro {
  display: grid;
  justify-items: center;
}

.end-mark {
  position: relative;
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  border: 1px solid var(--ink);
}

.end-mark::before,
.end-mark::after,
.end-mark i::before,
.end-mark i::after {
  position: absolute;
  content: "";
  background: var(--ink);
}

.end-mark::before {
  top: 20px;
  left: 0;
  width: 100%;
  height: 1px;
}

.end-mark::after {
  top: 0;
  left: 20px;
  width: 1px;
  height: 100%;
}

.end-mark i::before {
  top: 8px;
  left: 8px;
  width: 6px;
  height: 6px;
}

.end-mark i::after {
  right: 8px;
  bottom: 8px;
  width: 6px;
  height: 6px;
}

.end-english {
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.collection-end h2 {
  margin-bottom: 14px;
  font-family: var(--serif);
  font-size: 2.8rem;
  font-weight: 400;
}

.end-intro > p:not(.end-english) {
  margin-bottom: 26px;
  color: var(--ink-soft);
  font-size: 14px;
}

.contact-block {
  width: min(660px, 100%);
  margin-top: 64px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.contact-heading {
  margin-bottom: 20px;
}

.contact-heading h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
}

.contact-heading p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  width: min(440px, 100%);
  margin: 0 auto;
}

.contact-card {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  margin: 0;
  padding: 9px;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  text-align: left;
}

.contact-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid #eceee9;
  background: #fff;
}

.contact-copy {
  display: block;
  padding: 10px 2px 3px;
}

.contact-copy h3,
.contact-copy p {
  margin: 0;
}

.contact-copy h3 {
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
}

.contact-copy p {
  color: var(--ink-soft);
  font-size: 11px;
}

.text-button {
  padding: 0 24px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  padding: 20px 40px;
  color: var(--paper-raised);
  background: var(--ink);
  font-size: 11px;
}

.site-footer p {
  margin: 0;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 30;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--ink);
  border-radius: 0;
  color: var(--paper-raised);
  background: var(--ink);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lightbox {
  width: min(1180px, calc(100% - 32px));
  max-width: none;
  height: min(960px, calc(100svh - 48px));
  max-height: calc(100svh - 48px);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  color: var(--paper-raised);
  background: #111713;
  box-shadow: var(--shadow);
}

.lightbox::backdrop {
  background: rgba(12, 17, 14, 0.78);
}

.lightbox-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.lightbox-top,
.lightbox-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
  padding: 12px 18px;
  border-color: rgba(251, 251, 249, 0.15);
}

.lightbox-top {
  border-bottom: 1px solid rgba(251, 251, 249, 0.15);
}

.lightbox-bottom {
  border-top: 1px solid rgba(251, 251, 249, 0.15);
}

.lightbox-top p,
.lightbox-bottom p {
  margin: 0;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.icon-button:hover {
  border-color: rgba(251, 251, 249, 0.25);
  background: rgba(251, 251, 249, 0.08);
}

.icon-button:disabled {
  opacity: 0.25;
  pointer-events: none;
}

.lightbox-stage {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 64px;
  min-height: 0;
  overflow: hidden;
}

.lightbox-arrow {
  align-self: center;
  justify-self: center;
}

.lightbox-image-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  padding: 12px 0;
  overflow: hidden;
}

.lightbox-image-wrap img {
  position: absolute;
  inset: 12px 0;
  width: 100%;
  height: calc(100% - 24px);
  object-fit: contain;
  opacity: 0;
  transition: opacity 220ms ease;
}

.lightbox-image-wrap.is-loaded img {
  opacity: 1;
}

.lightbox-loader {
  position: absolute;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(251, 251, 249, 0.2);
  border-top-color: var(--paper-raised);
  border-radius: 50%;
  animation: spin 900ms linear infinite;
}

.lightbox-image-wrap.is-loaded .lightbox-loader {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.lightbox-series {
  margin-bottom: 4px !important;
  font-size: 13px;
  font-weight: 600;
}

.lightbox-specs,
.lightbox-count {
  color: rgba(251, 251, 249, 0.66);
  font-size: 11px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  z-index: 80;
  max-width: min(420px, calc(100% - 32px));
  padding: 12px 16px;
  color: var(--paper-raised);
  background: var(--ink);
  font-size: 13px;
  line-height: 1.55;
  opacity: 0;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.series-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1), transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.series-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fatal-state {
  display: grid;
  min-height: 60svh;
  place-items: center;
  padding: 40px 24px;
  text-align: center;
}

.fatal-state h1 {
  margin-bottom: 14px;
  font-size: 3rem;
}

.fatal-state p {
  color: var(--ink-soft);
}

@media (max-width: 1280px) {
  .hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
    gap: 42px;
  }

  h1 {
    font-size: 5rem;
  }

  .hero-visual {
    height: min(650px, calc(100svh - 190px));
    min-height: 500px;
  }

  .series-index-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .series-index-link:nth-child(4) {
    border-right: 0;
  }

  .series-index-link:nth-child(n + 5) {
    border-top: 1px solid var(--line);
  }

  .series-index-link:last-child {
    border-right: 1px solid var(--line);
  }

  .pattern-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 1024px) {
  .site-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 16px;
    padding: 10px 20px;
  }

  .brand-en {
    display: none;
  }

  .series-nav {
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .series-nav::-webkit-scrollbar {
    display: none;
  }

  .series-nav a {
    flex: 0 0 auto;
    padding: 0 10px;
  }

  .share-button span {
    display: none;
  }

  .share-button {
    width: 44px;
    padding: 0;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: auto;
    padding: 44px 24px 40px;
  }

  .hero-copy {
    padding: 0;
  }

  h1 {
    font-size: 4.25rem;
  }

  .hero-intro {
    margin-bottom: 22px;
    line-height: 1.65;
  }

  .hero-visual {
    height: 360px;
    min-height: 0;
  }

  .series-index,
  .series-list {
    padding-right: 24px;
    padding-left: 24px;
  }

  .series-header {
    grid-template-columns: minmax(210px, 1fr) minmax(260px, 1.2fr) auto;
  }

  .series-specs {
    grid-column: 1 / 3;
    grid-row: 2;
    max-width: 520px;
    padding-top: 4px;
  }

  .series-count {
    grid-column: 3;
    grid-row: 1;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 66px;
    padding: 8px 16px;
  }

  .brand-cn {
    font-size: 21px;
  }

  .brand-mark {
    width: 16px;
    height: 16px;
  }

  .brand-mark::before {
    top: 7px;
  }

  .brand-mark::after {
    left: 7px;
  }

  .series-nav {
    gap: 0;
  }

  .series-nav a {
    min-width: 28px;
    padding: 0 4px;
    font-size: 12px;
  }

  .hero {
    padding: 44px 18px 38px;
  }

  h1 {
    margin-bottom: 22px;
    font-size: 3.5rem;
    line-height: 1.08;
  }

  .hero-intro {
    margin-bottom: 26px;
    font-size: 14px;
  }

  .hero-visual {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    height: 390px;
    min-height: 0;
    gap: 6px;
  }

  .hero-tile:first-child {
    grid-column: span 2;
  }

  .hero-tile figcaption {
    right: 7px;
    bottom: 7px;
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .series-index {
    padding: 68px 18px 48px;
  }

  .section-heading {
    display: block;
    margin-bottom: 24px;
  }

  .section-heading h2 {
    margin-bottom: 8px;
    font-size: 2rem;
  }

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

  .series-index-link {
    min-height: 118px;
    padding: 18px 14px;
  }

  .series-index-link:nth-child(2n) {
    border-right: 0;
  }

  .series-index-link:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .series-index-link:last-child {
    border-right: 0;
  }

  .index-letter {
    font-size: 2.9rem;
  }

  .series-list {
    padding: 0 18px 30px;
  }

  .series-section {
    padding-bottom: 78px;
    scroll-margin-top: 82px;
  }

  .series-header {
    grid-template-columns: 1fr auto;
    gap: 20px 14px;
    padding: 24px 0 26px;
  }

  .series-heading {
    gap: 16px;
  }

  .series-letter {
    font-size: 4.3rem;
  }

  .series-heading h2 {
    font-size: 1.6rem;
  }

  .series-count {
    grid-column: 2;
    grid-row: 1;
  }

  .series-specs {
    grid-column: 1 / -1;
    grid-row: 2;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 14px;
    padding-top: 0;
  }

  .series-specs dd {
    font-size: 14px;
  }

  .weight-number {
    font-size: 1.5rem;
  }

  .pattern-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 8px;
  }

  .pattern-caption {
    min-height: 34px;
    padding-top: 8px;
  }

  .pattern-caption span:last-child {
    display: inline;
  }

  .collection-end {
    padding: 88px 20px 98px;
  }

  .collection-end h2 {
    font-size: 2.2rem;
  }

  .contact-block {
    margin-top: 52px;
    padding-top: 28px;
  }

  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .contact-card {
    padding: 6px;
  }

  .contact-copy {
    padding: 8px 2px 2px;
  }

  .contact-copy h3 {
    margin-bottom: 3px;
    font-size: 12px;
  }

  .contact-copy p {
    font-size: 10px;
  }

  .site-footer {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px 16px;
    padding: 22px 18px;
  }

  .site-footer p:nth-child(2) {
    grid-column: 1;
  }

  .site-footer p:nth-child(3) {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
  }

  .lightbox {
    width: 100%;
    height: 100svh;
    max-height: 100svh;
    margin: 0;
  }

  .lightbox-top {
    min-height: 58px;
  }

  .lightbox-stage {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
  }

  .lightbox-arrow {
    width: 38px;
    height: 38px;
  }

  .lightbox-bottom {
    min-height: 72px;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 3.05rem;
  }

  .hero-visual {
    height: 340px;
  }

  .series-index-grid {
    grid-template-columns: 1fr 1fr;
  }

  .series-specs {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (min-width: 1025px) and (max-height: 850px) {
  .hero {
    gap: 40px;
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .hero-copy {
    padding: 0;
  }

  h1 {
    font-size: 5rem;
  }

  .hero-visual {
    height: calc(100svh - 160px);
    min-height: 460px;
  }
}

@media (min-width: 761px) and (max-width: 1024px) and (max-height: 850px) {
  .hero {
    gap: 20px;
    padding-top: 24px;
    padding-bottom: 28px;
  }

  h1 {
    margin-bottom: 16px;
    font-size: 3.6rem;
  }

  .hero-intro {
    margin-bottom: 14px;
    line-height: 1.55;
  }

  .hero-visual {
    height: 280px;
  }
}

@media (max-width: 760px) and (max-height: 680px) {
  .hero {
    gap: 16px;
    padding: 20px 18px;
  }

  h1 {
    margin-bottom: 12px;
    font-size: 2.65rem;
  }

  .hero-intro {
    margin-bottom: 12px;
    font-size: 13px;
    line-height: 1.55;
  }

  .hero-link {
    min-height: 38px;
  }

  .hero-visual {
    height: 210px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .series-section {
    opacity: 1;
    transform: none;
  }
}