:root {
  --porcelain: #fbfaf6;
  --paper: #f3efe6;
  --ink: #1b1b1c;
  --muted: #6f675e;
  --line: #ded3c2;
  --blue: #183f67;
  --blue-deep: #0d263f;
  --gold: #b58a4a;
  --jade: #dcebea;
  --rose: #ead2d0;
  --shadow: 0 18px 45px rgba(21, 26, 31, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--porcelain);
  font-family: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  line-height: 1.65;
}

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: 14px 34px;
  border-bottom: 1px solid rgba(222, 211, 194, 0.78);
  background: rgba(251, 250, 246, 0.92);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  width: 172px;
}

.brand-mark img {
  width: 100%;
  height: 78px;
  object-fit: contain;
  object-position: left center;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  gap: 24px;
  color: #4f4942;
  font-size: 16px;
}

.site-nav a {
  border-bottom: 1px solid transparent;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue);
  border-color: var(--gold);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--blue);
  color: var(--blue);
  font-size: 14px;
}

.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--blue-deep);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  object-position: center bottom;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(6, 18, 29, 0.84), rgba(6, 18, 29, 0.54) 48%, rgba(6, 18, 29, 0.18)),
    linear-gradient(0deg, rgba(6, 18, 29, 0.62), rgba(6, 18, 29, 0.08) 45%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 48px));
  margin: 0 auto 150px;
  transform: translateX(-22%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: "Source Han Serif SC Heavy", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-size: 72px;
  font-weight: 900;
  line-height: 1.02;
}

.hero-line {
  margin: 20px 0 0;
  font-family: "Source Han Serif SC Heavy", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-size: 28px;
  font-weight: 900;
}

.hero-copy {
  max-width: 600px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 17px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid currentColor;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 700;
}

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

.button-secondary {
  border-color: rgba(255, 255, 255, 0.74);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.hero-facts {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  justify-items: center;
  gap: 46px;
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto 42px;
}

.hero-facts article {
  position: relative;
  width: 100%;
  max-width: 220px;
  padding: 0;
  text-align: center;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.hero-facts article::before {
  content: "";
  display: block;
  width: 42px;
  height: 2px;
  margin: 0 auto 12px;
  background: var(--gold);
}

.hero-facts span {
  display: block;
  color: #fff;
  font-family: "Source Han Serif SC Heavy", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
}

.hero-facts p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.section {
  padding: 92px max(24px, calc((100vw - 1180px) / 2));
}

.section-heading {
  max-width: 740px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin: 0;
  font-size: 38px;
  font-weight: 600;
  line-height: 1.24;
}

.section-heading p:not(.eyebrow),
.section-heading-split > p {
  margin: 14px 0 0;
  color: var(--muted);
}

.section-heading-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 46px;
  max-width: none;
  align-items: end;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(560px, 640px);
  column-gap: 56px;
  align-items: stretch;
  background:
    linear-gradient(180deg, var(--porcelain), var(--paper));
}

.intro .section-heading {
  grid-column: 1;
}

.intro-grid {
  display: contents;
}

.intro-copy {
  grid-column: 1;
  font-size: 17px;
}

.intro-copy p {
  max-width: 760px;
  margin: 0 0 22px;
  color: #3d3832;
}

.timeline {
  display: grid;
  gap: 0;
  margin-top: 38px;
  border-top: 1px solid var(--line);
}

.timeline div {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.timeline strong {
  color: var(--blue);
  font-size: 22px;
}

.timeline span {
  color: var(--muted);
}

.heritage-figure {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(300px, 1.05fr) minmax(250px, 0.95fr);
  grid-column: 2;
  grid-row: 1 / span 2;
  align-items: stretch;
  min-height: 330px;
  height: 100%;
  background: #fff;
  box-shadow: var(--shadow);
}

.heritage-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.heritage-figure figcaption {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
  color: var(--muted);
  font-size: 15px;
}

.designer-name {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.35;
}

.designer-title {
  display: block;
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.designer-bio {
  margin: 0;
}

.banquet {
  background: #fff;
}

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

.banquet-panel {
  background: var(--porcelain);
  border: 1px solid var(--line);
}

.banquet-panel img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

.banquet-panel div {
  padding: 28px;
}

.banquet-panel span {
  color: var(--gold);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 700;
}

.banquet-panel h3 {
  margin: 8px 0 8px;
  font-size: 24px;
  font-weight: 600;
}

.banquet-panel p {
  margin: 0;
  color: var(--muted);
}

.series-section {
  --series-image: url("assets/series-bg-qianli.jpg");
  position: relative;
  isolation: isolate;
  min-height: 820px;
  color: #fff;
  background-image:
    radial-gradient(circle at center, rgba(8, 20, 32, 0.05) 0%, rgba(8, 20, 32, 0.22) 48%, rgba(8, 20, 32, 0.82) 100%),
    linear-gradient(90deg, rgba(8, 20, 32, 0.82), rgba(8, 20, 32, 0.36) 42%, rgba(8, 20, 32, 0.66)),
    var(--series-image);
  background-position: center 52%;
  background-size: cover;
  background-repeat: no-repeat;
}

.series-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(8, 20, 32, 0.42), rgba(8, 20, 32, 0.1) 38%, rgba(8, 20, 32, 0.56)),
    radial-gradient(circle at center, transparent 42%, rgba(0, 0, 0, 0.42) 100%);
  pointer-events: none;
}

.series-section .section-heading,
.series-section .series-tabs,
.series-section .series-feature {
  position: relative;
  z-index: 1;
}

.series-section .section-heading h2 {
  color: #fff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.42);
}

.series-section .section-heading p:not(.eyebrow),
.series-section .section-heading-split > p {
  color: rgba(255, 255, 255, 0.78);
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.35);
}

.series-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 84px;
}

.series-tab {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.86);
  cursor: pointer;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
  backdrop-filter: blur(8px);
}

.series-tab.is-active {
  border-color: var(--gold);
  background: var(--gold);
  color: #fff;
}

.series-feature {
  display: flex;
  align-items: flex-end;
  min-height: 360px;
}

.series-detail {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(660px, 100%);
  padding: 0;
  border: 0;
  background: transparent;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.52);
}

.series-detail h3 {
  margin: 0;
  font-size: 36px;
  font-weight: 600;
  line-height: 1.2;
}

.series-detail .english {
  margin: 10px 0 0;
  color: var(--gold);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 700;
}

.series-detail .tagline {
  margin: 24px 0 0;
  color: #fff;
  font-size: 21px;
}

.series-detail .description {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.82);
}

.products-section {
  background: #fff;
}

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

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 1px solid var(--line);
  background: var(--porcelain);
}

.product-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  padding: 18px;
  object-fit: contain;
  object-position: center;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.product-card-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.product-card small {
  display: block;
  overflow: hidden;
  color: var(--gold);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-card h3 {
  margin: 8px 0 12px;
  font-size: 22px;
  line-height: 1.28;
}

.product-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}

.product-list li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid rgba(222, 211, 194, 0.7);
  padding-bottom: 8px;
}

.product-list span:last-child {
  flex: 0 0 auto;
  color: var(--blue);
  font-weight: 700;
}

.product-occasion {
  margin: auto 0 0;
  padding-top: 18px;
  color: #5a5148;
  font-size: 14px;
}

.care {
  background:
    linear-gradient(180deg, var(--porcelain), #fff);
}

.care-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.care-grid article {
  padding: 26px;
  border: 1px solid var(--line);
  background: #fff;
}

.care-grid span {
  color: var(--gold);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  font-weight: 700;
}

.care-grid h3 {
  margin: 12px 0 10px;
  font-size: 21px;
}

.care-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.contact {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 36px;
  align-items: center;
  padding: 92px max(24px, calc((100vw - 1180px) / 2));
  color: #fff;
  background:
    radial-gradient(circle at 50% 50%, rgba(181, 138, 74, 0.16), transparent 34%),
    linear-gradient(135deg, #091b2d 0%, #0d263f 54%, #071421 100%);
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: url("assets/logo-longzhuge-cropped.png") center / min(240px, 28vw) auto no-repeat;
  opacity: 0.08;
  pointer-events: none;
}

.contact-content,
.contact-card {
  position: relative;
  z-index: 1;
}

.contact h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.22;
}

.contact p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
}

.contact-card {
  display: grid;
  gap: 14px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.78);
  font-style: normal;
  backdrop-filter: blur(8px);
}

.contact-card strong {
  color: #fff;
  font-size: 22px;
}

.contact-card span {
  color: #fff;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 34px;
  border-top: 1px solid #cbbca6;
  color: #4f4942;
  background: #f3efe6;
  font-family: "Microsoft YaHei", "PingFang SC", "Heiti SC", Arial, sans-serif;
  font-size: 13px;
  line-height: 1.5;
}

.footer-records {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  text-align: right;
}

.public-security-record {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 5px;
  white-space: nowrap;
}

.site-footer .public-security-record img {
  flex: 0 0 13px;
  width: 13px;
  min-width: 13px;
  max-width: 13px;
  height: 13px;
  object-fit: contain;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 14px 20px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 0;
    overflow-x: auto;
    padding: 4px 0 6px;
  }

  .brand-mark {
    width: 152px;
  }

  .brand-mark img {
    height: 70px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-content {
    transform: none;
    margin-bottom: 170px;
  }

  .hero h1 {
    font-size: 54px;
  }

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

  .intro {
    display: block;
  }

  .intro .section-heading,
  .intro-copy {
    grid-column: auto;
  }

  .intro-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .heritage-figure {
    grid-template-columns: minmax(280px, 0.9fr) minmax(260px, 1fr);
    grid-column: auto;
    grid-row: auto;
    height: auto;
  }

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

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

  .series-section {
    min-height: 760px;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 0;
  }

  .site-header {
    position: static;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 680px;
  }

  .hero-content {
    width: calc(100% - 36px);
    margin-bottom: 210px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-line {
    font-size: 22px;
  }

  .hero-copy {
    font-size: 15px;
  }

  .hero-facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    width: calc(100% - 36px);
    margin-bottom: 30px;
  }

  .hero-facts article {
    max-width: none;
    padding: 0;
  }

  .hero-facts article::before {
    width: 30px;
    margin-bottom: 8px;
  }

  .hero-facts span {
    font-size: 34px;
  }

  .hero-facts p {
    margin-top: 8px;
    font-size: 13px;
  }

  .section,
  .contact {
    padding: 64px 18px;
  }

  .series-section {
    min-height: 720px;
    background-position: center top;
  }

  .section-heading h2,
  .contact h2 {
    font-size: 30px;
  }

  .banquet-grid,
  .product-grid,
  .care-grid {
    grid-template-columns: 1fr;
  }

  .timeline div {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 14px;
  }

  .heritage-figure {
    grid-template-columns: 1fr;
  }

  .heritage-figure img {
    min-height: 0;
    height: 420px;
  }

  .series-detail {
    padding: 0;
  }

  .series-detail h3 {
    font-size: 30px;
  }

  .series-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .series-tab {
    flex: 0 0 auto;
  }

  .site-footer {
    flex-direction: column;
    padding: 22px 18px;
  }
}

@media (max-width: 680px) and (orientation: portrait) {
  .heritage-figure img {
    height: 350px;
    object-fit: cover;
    object-position: center top;
  }
}

@media (max-width: 980px) and (orientation: landscape) {
  .heritage-figure {
    min-height: 420px;
  }

  .heritage-figure img {
    height: 420px;
    object-fit: contain;
    background: #fff;
  }
}

@media (max-width: 980px) and (orientation: portrait) {
  .footer-records {
    align-items: flex-start;
    text-align: left;
  }

  .public-security-record {
    justify-content: flex-start;
  }
}