:root {
  --ink: #1a1d20;
  --ink-mid: #3a3f45;
  --paper: #e9e3d5;
  --paper-light: #f5efe6;
  --deep: #0e3f4a;
  --crimson: #7f2d33;
  --gold: #c3963d;
  --gold-deep: #8a6d1f;
  --indigo: #312a4a;
  --brick: #5c3a2e;
  --coral: #c9604a;
  --cream: #f5efe6;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 12px rgba(26, 29, 32, 0.08);
  --shadow-lg: 0 18px 48px -20px rgba(26, 29, 32, 0.32);
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "STSong", SimSun, serif;
  --font-sans: "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--crimson) var(--paper);
}

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

ul,
ol {
  list-style: none;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

::selection {
  background: var(--gold);
  color: var(--ink);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: var(--ink);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.8rem);
}

h2 {
  font-size: clamp(1.8rem, 3.6vw, 3rem);
}

h3 {
  font-size: 1.25rem;
  letter-spacing: 0;
}

p {
  line-height: 1.75;
  margin-bottom: 1em;
}

a {
  color: var(--crimson);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: min(1180px, 100% - 40px);
  margin-inline: auto;
}

.content-width {
  width: min(720px, 100% - 40px);
  margin-inline: auto;
}

.section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section-head {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  margin: 0;
}

.section-intro {
  color: var(--ink-mid);
  font-size: 1.08rem;
  max-width: 60ch;
}

.section--deep {
  background: var(--deep);
  color: rgba(245, 239, 230, 0.86);
}

.section--wine {
  background: var(--crimson);
  color: rgba(245, 239, 230, 0.9);
}

.section--indigo {
  background: var(--indigo);
  color: rgba(245, 239, 230, 0.88);
}

.section--brick {
  background: var(--brick);
  color: rgba(245, 239, 230, 0.88);
}

.section--deep h1,
.section--deep h2,
.section--deep h3,
.section--wine h1,
.section--wine h2,
.section--wine h3,
.section--indigo h1,
.section--indigo h2,
.section--indigo h3,
.section--brick h1,
.section--brick h2,
.section--brick h3 {
  color: var(--cream);
}

.section--deep .eyebrow,
.section--indigo .eyebrow,
.section--brick .eyebrow {
  color: var(--gold);
}

.section--wine .eyebrow {
  color: var(--cream);
}

.section--deep .section-intro,
.section--wine .section-intro,
.section--indigo .section-intro,
.section--brick .section-intro {
  color: rgba(245, 239, 230, 0.72);
}

.section--deep a:not(.btn),
.section--wine a:not(.btn),
.section--indigo a:not(.btn),
.section--brick a:not(.btn) {
  color: var(--gold);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.24s ease, color 0.24s ease, box-shadow 0.24s ease, transform 0.24s ease;
}

.btn--primary {
  background: var(--crimson);
  color: var(--cream);
  box-shadow: 0 6px 20px -6px rgba(127, 45, 51, 0.5);
}

.btn--primary:hover {
  background: var(--coral);
  color: var(--cream);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -8px rgba(201, 96, 74, 0.5);
}

.btn--ghost {
  background: transparent;
  border-color: var(--crimson);
  color: var(--crimson);
}

.btn--ghost:hover {
  background: rgba(127, 45, 51, 0.08);
  transform: translateY(-2px);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid--2,
.grid--3 {
  grid-template-columns: 1fr;
}

.card,
.data-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--paper-light);
  border: 1px solid rgba(58, 63, 69, 0.12);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.card::after,
.data-card::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -70%;
  width: 45%;
  height: 200%;
  background: linear-gradient(105deg, transparent 20%, rgba(195, 150, 61, 0.28) 48%, transparent 72%);
  transform: rotate(10deg) translateX(0);
  transition: transform 0.45s ease;
  pointer-events: none;
}

.card:hover,
.data-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card:hover::after,
.data-card:hover::after {
  transform: rotate(10deg) translateX(280%);
}

.data-card {
  background: var(--cream);
  border-radius: 22px;
}

.data-card--dark {
  background: var(--deep);
  border-color: transparent;
  color: rgba(245, 239, 230, 0.86);
}

.data-card--dark .data-card__value {
  color: var(--gold);
}

.data-card--dark .data-card__label {
  color: rgba(245, 239, 230, 0.7);
}

.data-card--dark .data-card__foot {
  border-top-color: rgba(245, 239, 230, 0.14);
  color: rgba(245, 239, 230, 0.6);
}

.data-card__value {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--crimson);
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 6px;
}

.data-card__label {
  font-size: 0.92rem;
  color: var(--ink-mid);
  display: block;
}

.data-card__foot {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(58, 63, 69, 0.1);
  font-size: 0.85rem;
  color: var(--ink-mid);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  background: rgba(195, 150, 61, 0.14);
  color: var(--gold-deep);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  font-size: 0.9rem;
  color: var(--ink-mid);
}

.breadcrumb a {
  color: var(--crimson);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "›";
  color: var(--ink-mid);
}

.slash-band {
  display: block;
  height: 10px;
  border: 0;
  background: linear-gradient(135deg, var(--gold) 0 46%, var(--crimson) 46% 100%);
  opacity: 0.85;
}

.brick-texture {
  background-color: transparent;
  background-image:
    linear-gradient(90deg, rgba(92, 58, 46, 0.1) 1px, transparent 1px),
    linear-gradient(rgba(92, 58, 46, 0.1) 1px, transparent 1px);
  background-size: 64px 32px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 clamp(2rem, 4vw, 3rem);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(58, 63, 69, 0.24);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--crimson);
  color: var(--crimson);
}

.filter-btn.is-active,
.filter-btn[aria-pressed="true"] {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--cream);
}

.collapse {
  border: 1px solid rgba(58, 63, 69, 0.14);
  border-radius: 18px;
  background: var(--cream);
  padding: 18px 22px;
  margin-top: 14px;
  box-shadow: var(--shadow-sm);
}

.collapse summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--ink);
  padding-right: 28px;
  position: relative;
}

.collapse summary::-webkit-details-marker {
  display: none;
}

.collapse summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(127, 45, 51, 0.1);
  color: var(--crimson);
  font-weight: 700;
  transition: transform 0.24s ease;
}

.collapse[open] summary::after {
  content: "−";
}

.collapse__content {
  padding-top: 14px;
  color: var(--ink-mid);
  font-size: 0.95rem;
}

.is-hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 300;
  padding: 12px 20px;
  border-radius: 0 0 12px 12px;
  background: var(--crimson);
  color: var(--cream);
  text-decoration: none;
  font-weight: 700;
  transition: top 0.24s ease;
}

.skip-link:focus {
  top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 20px 0;
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 1280px;
  margin-inline: auto;
  padding: 10px 12px 10px 18px;
  border-radius: var(--radius-pill);
  background: rgba(26, 29, 32, 0.92);
  box-shadow: 0 8px 30px -10px rgba(26, 29, 32, 0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(245, 239, 230, 0.08);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}

.site-brand__mark {
  flex: 0 0 auto;
  width: 32px;
  height: 22px;
  position: relative;
  border-radius: 4px;
  background:
    linear-gradient(90deg,
      var(--crimson) 0 24%, transparent 24% 30%,
      var(--crimson) 30% 53%, transparent 53% 60%,
      var(--crimson) 60% 100%);
}

.site-brand__mark::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  right: 0;
  height: 7px;
  border-radius: 4px 4px 0 0;
  background:
    linear-gradient(90deg,
      var(--gold) 0 26%, transparent 26% 32%,
      var(--gold) 32% 58%, transparent 58% 64%,
      var(--gold) 64% 100%);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.15;
}

.site-brand__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: 0.03em;
  color: var(--cream);
}

.site-brand__tag {
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  background: var(--crimson);
  color: var(--cream);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.24s ease, box-shadow 0.24s ease, transform 0.24s ease;
  margin-left: auto;
}

.site-header__cta:hover {
  background: var(--coral);
  box-shadow: 0 4px 16px rgba(201, 96, 74, 0.5);
  transform: translateY(-1px);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid rgba(245, 239, 230, 0.25);
  cursor: pointer;
  padding: 0;
  flex: 0 0 auto;
}

.nav-toggle__line {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--cream);
  transition: transform 0.24s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.site-nav {
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  right: 0;
  z-index: 20;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  padding: 10px;
  background: rgba(26, 29, 32, 0.97);
  border: 1px solid rgba(195, 150, 61, 0.3);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.24s ease, transform 0.24s ease, visibility 0s linear 0.24s;
}

.site-nav[data-open] {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.24s ease, transform 0.24s ease;
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-nav__item {
  list-style: none;
}

.site-nav__link {
  display: block;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  color: rgba(245, 239, 230, 0.85);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.24s ease, color 0.24s ease, box-shadow 0.24s ease;
}

.site-nav__link:hover {
  color: var(--cream);
  background: rgba(245, 239, 230, 0.1);
}

.site-nav__link[aria-current="page"] {
  color: var(--cream);
  background: var(--crimson);
  box-shadow: 0 0 0 1px rgba(195, 150, 61, 0.3) inset;
}

.site-footer {
  position: relative;
  background: var(--ink);
  color: var(--cream);
  overflow: hidden;
  margin-top: clamp(4rem, 8vw, 7rem);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(92, 58, 46, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 58, 46, 0.22) 1px, transparent 1px);
  background-size: 120px 52px;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  width: min(1180px, 100% - 40px);
  margin-inline: auto;
  padding-block: clamp(2.8rem, 6vw, 4.5rem) 24px;
}

.site-footer__top {
  display: grid;
  gap: 36px;
}

.site-footer__brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.site-footer__mark {
  flex: 0 0 auto;
  width: 30px;
  height: 20px;
  position: relative;
  border-radius: 3px;
  background:
    linear-gradient(90deg,
      var(--crimson) 0 24%, transparent 24% 30%,
      var(--crimson) 30% 52%, transparent 52% 60%,
      var(--crimson) 60% 100%);
}

.site-footer__mark::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  right: 0;
  height: 6px;
  border-radius: 3px 3px 0 0;
  background:
    linear-gradient(90deg,
      var(--gold) 0 26%, transparent 26% 32%,
      var(--gold) 32% 58%, transparent 58% 64%,
      var(--gold) 64% 100%);
}

.site-footer__name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.site-footer__trust {
  flex-basis: 100%;
  max-width: 36em;
  margin-top: 4px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(245, 239, 230, 0.6);
}

.site-footer__nav {
  min-width: 0;
}

.site-footer__heading {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 14px;
}

.site-footer__links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(245, 239, 230, 0.18);
  color: rgba(245, 239, 230, 0.78);
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.site-footer__link:hover {
  color: var(--cream);
  border-color: var(--gold);
  background: rgba(195, 150, 61, 0.12);
  transform: translateY(-1px);
}

.site-footer__contact {
  min-width: 0;
}

.site-footer__contact-list {
  display: grid;
  gap: 8px;
}

.site-footer__contact-link {
  color: var(--cream);
  font-size: 0.92rem;
  text-decoration: none;
  word-break: break-all;
  transition: color 0.2s ease;
}

.site-footer__contact-link:hover {
  color: var(--gold);
}

.site-footer__address,
.site-footer__hours {
  color: rgba(245, 239, 230, 0.6);
  font-size: 0.86rem;
  font-style: normal;
  line-height: 1.6;
}

.site-footer__address {
  overflow-wrap: anywhere;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 239, 230, 0.14);
  font-size: 0.82rem;
  color: rgba(245, 239, 230, 0.55);
}

.site-footer__copy,
.site-footer__icp {
  margin: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 200;
  background: var(--gold);
  transform-origin: 0 50%;
  transform: scaleX(0);
  pointer-events: none;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .site-footer__top {
    grid-template-columns: 1.1fr 1.2fr;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-nav {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    margin-left: auto;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    border-radius: 0;
    transition: none;
  }

  .site-nav__list {
    flex-direction: row;
    gap: 2px;
  }

  .site-nav__link {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    font-size: 0.88rem;
  }

  .nav-toggle {
    display: none;
  }

  .site-header__cta {
    margin-left: 0;
  }
}

@media (min-width: 1024px) {
  .site-footer__top {
    grid-template-columns: 1.2fr 1.4fr 1fr;
  }

  .site-footer__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-brand__tag {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
}