/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background-color: var(--clr-bg);
}

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

body {
  min-height: 100vh;
  font-family: 'Noto Sans SC', 'Source Han Sans SC', '思源黑体', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--clr-ink);
  background-color: var(--clr-bg);
}

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

a {
  color: var(--clr-gold);
  text-decoration: none;
}

a:hover {
  color: var(--clr-night);
}

ul,
ol {
  padding-left: 1.5em;
}

button {
  font-family: inherit;
  font-size: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', '思源宋体', serif;
  font-weight: 900;
  line-height: 1.35;
  color: var(--clr-ink);
}

h1 { font-size: 36px; }
h2 { font-size: 28px; }
h3 { font-size: 20px; }

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

::selection {
  background: var(--clr-gold-wash);
  color: var(--clr-night);
}

/* ===== Design Tokens ===== */
:root {
  --clr-bg: #F5EFE4;
  --clr-bg-deep: #E9DCC8;
  --clr-ink: #241E18;
  --clr-ink-secondary: #4C4235;
  --clr-gold: #C79A4A;
  --clr-night: #152536;
  --clr-red: #9E3A2D;
  --clr-glass: rgba(255, 255, 255, 0.78);
  --clr-gold-wash: rgba(199, 154, 74, 0.18);
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', '思源宋体', serif;
  --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '思源黑体', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
  --nav-w: 260px;
  --content-w: 1200px;
  --radius: 14px;
  --shadow: 0 4px 20px rgba(36, 30, 24, 0.08);
}

/* ===== Utils ===== */
.mono {
  font-family: var(--font-mono);
}

.accent-red {
  color: var(--clr-red);
}

.red-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-red);
  flex: 0 0 6px;
}

/* ===== Skip Link ===== */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 500;
  background: var(--clr-night);
  color: var(--clr-bg);
  padding: 10px 20px;
  border-radius: 0 0 10px 10px;
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: top 0.25s ease;
}

.skip-link:focus {
  top: 0;
  color: var(--clr-bg);
}

/* ===== Scroll Progress ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-gold) 0%, #E6C878 55%, var(--clr-gold) 100%);
  box-shadow: 0 0 8px rgba(199, 154, 74, 0.55);
  z-index: 600;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .scroll-progress {
    display: none;
  }
}

/* ===== Site Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--clr-bg-deep);
  border-bottom: 1px solid rgba(36, 30, 24, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 16px;
}

/* ===== Brand ===== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--clr-ink);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--clr-gold);
  margin-top: 2px;
}

/* ===== Nav Toggle ===== */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(36, 30, 24, 0.18);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  color: var(--clr-ink);
  transition: border-color 0.2s, color 0.2s;
}

.nav-toggle:hover {
  border-color: var(--clr-gold);
  color: var(--clr-gold);
}

.nav-toggle-lines {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.nav-toggle-label {
  font-size: 12px;
  letter-spacing: 0.12em;
}

/* ===== Side Nav ===== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(85vw, 320px);
  display: flex;
  flex-direction: column;
  background: var(--clr-bg-deep);
  border-right: 1px solid rgba(36, 30, 24, 0.12);
  box-shadow: 12px 0 40px rgba(21, 37, 54, 0.28);
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform 0.35s ease, visibility 0.35s;
  z-index: 130;
  overflow-y: auto;
}

.site-nav[data-open="true"] {
  transform: translateX(0);
  visibility: visible;
}

.nav-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 20px 14px;
  border-bottom: 1px solid rgba(36, 30, 24, 0.12);
}

.nav-head-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.3em;
  color: var(--clr-ink);
}

.nav-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid rgba(36, 30, 24, 0.18);
  border-radius: 8px;
  color: var(--clr-ink-secondary);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.nav-close:hover {
  color: var(--clr-gold);
  border-color: var(--clr-gold);
}

/* ===== Nav List ===== */
.nav-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  flex: 1;
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 20px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--clr-ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.nav-link:hover {
  background: var(--clr-gold-wash);
  border-left-color: var(--clr-gold);
  color: var(--clr-night);
}

.nav-link[aria-current="page"] {
  background: var(--clr-gold-wash);
  border-left-color: var(--clr-gold);
  color: var(--clr-night);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clr-gold);
  letter-spacing: 0;
}

.nav-label {
  letter-spacing: 0.06em;
}

/* ===== Nav Extra ===== */
.nav-extra {
  padding: 16px 20px 20px;
  border-top: 1px solid rgba(36, 30, 24, 0.12);
}

.nav-foot-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-ink);
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.2s;
}

.nav-foot-link:hover {
  color: var(--clr-gold);
}

.nav-phone {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clr-ink-secondary);
}

/* ===== Nav Backdrop ===== */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(21, 37, 54, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
  z-index: 125;
}

.nav-backdrop[data-open="true"] {
  opacity: 1;
  visibility: visible;
}

/* ===== Desktop Side Rail ===== */
@media (min-width: 1024px) {
  body {
    padding-left: var(--nav-w);
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--nav-w);
    height: 100vh;
    display: flex;
    flex-direction: column;
    border-bottom: none;
    border-right: 1px solid rgba(36, 30, 24, 0.1);
  }

  .site-header::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 88%, rgba(199, 154, 74, 0.14) 0%, transparent 46%);
    pointer-events: none;
    z-index: 0;
  }

  .site-header > * {
    position: relative;
    z-index: 1;
  }

  .header-inner {
    height: auto;
    justify-content: flex-start;
    padding: 0;
    flex: 0 0 auto;
  }

  .brand {
    width: 100%;
    padding: 28px 22px 22px;
    border-bottom: 1px solid rgba(36, 30, 24, 0.1);
  }

  .brand-name {
    font-size: 20px;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    width: 100%;
    height: auto;
    flex: 1;
    transform: none;
    visibility: visible;
    border-right: none;
    box-shadow: none;
    overflow-y: visible;
  }

  .nav-head {
    display: none;
  }

  .nav-list {
    padding: 12px 0;
  }

  .nav-link {
    padding: 15px 24px;
  }

  .nav-extra {
    margin-top: auto;
  }

  .nav-backdrop {
    display: none;
  }
}

/* ===== Site Footer ===== */
.site-footer {
  position: relative;
  background: var(--clr-night);
  color: rgba(245, 239, 228, 0.78);
  padding: 56px 0 24px;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--clr-gold) 20%, #E6C878 50%, var(--clr-gold) 80%, transparent);
}

.footer-inner {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.footer-logo-mark {
  display: inline-flex;
  margin-bottom: 4px;
}

.footer-name {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--clr-bg);
}

.footer-slogan {
  font-size: 13px;
  color: rgba(245, 239, 228, 0.55);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-col-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 14px;
}

.footer-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link-list li {
  margin-bottom: 8px;
}

.footer-link-list a {
  font-size: 14px;
  color: rgba(245, 239, 228, 0.72);
  transition: color 0.2s;
}

.footer-link-list a:hover {
  color: var(--clr-gold);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-contact-line {
  margin: 0;
  font-size: 13px;
  color: rgba(245, 239, 228, 0.68);
  line-height: 1.6;
}

.footer-contact-note {
  margin: 8px 0 0;
  font-size: 12px;
  color: rgba(245, 239, 228, 0.45);
  line-height: 1.6;
}

.footer-bottom {
  max-width: var(--content-w);
  margin: 44px auto 0;
  padding: 18px 28px 0;
  border-top: 1px solid rgba(245, 239, 228, 0.14);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  font-size: 12px;
  color: rgba(245, 239, 228, 0.48);
}

.footer-copyright,
.footer-icp,
.footer-trust {
  margin: 0;
}

.footer-icp {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.footer-trust {
  flex-basis: 100%;
  font-size: 12px;
  color: rgba(245, 239, 228, 0.4);
  margin-top: 8px;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.2fr 1.6fr 1fr;
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .footer-inner {
    padding: 0 40px;
  }

  .footer-bottom {
    padding-left: 40px;
    padding-right: 40px;
  }
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 20px;
}

.main-content {
  min-height: 65vh;
  padding: 28px 0 64px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 28px;
  }

  .main-content {
    padding: 40px 0 80px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 40px;
  }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--clr-ink-secondary);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--clr-ink-secondary);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--clr-gold);
}

.breadcrumb-sep {
  color: var(--clr-gold);
  font-family: var(--font-mono);
  font-size: 12px;
}

.breadcrumb [aria-current="page"] {
  color: var(--clr-ink);
  font-weight: 500;
}

/* ===== Section ===== */
.section {
  padding: 32px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--clr-gold);
}

.section-label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--clr-gold);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 28px;
  line-height: 1.35;
  color: var(--clr-ink);
  margin: 10px 0 8px;
}

.section-desc {
  font-size: 14px;
  color: var(--clr-ink-secondary);
  max-width: 640px;
}

/* ===== Grid ===== */
.grid {
  display: grid;
  gap: 24px;
}

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

@media (min-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* ===== Cards ===== */
.card {
  background: var(--clr-bg);
  border: 1px solid rgba(36, 30, 24, 0.1);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(36, 30, 24, 0.14);
}

.card-gold {
  border-color: var(--clr-gold);
}

.card-dark {
  background: var(--clr-night);
  color: rgba(245, 239, 228, 0.82);
  border-color: rgba(255, 255, 255, 0.08);
}

.card-dark:hover {
  box-shadow: 0 10px 30px rgba(21, 37, 54, 0.4);
}

.card-glass {
  background: var(--clr-glass);
  border: 1px solid rgba(255, 255, 255, 0.4);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.card-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 8px;
  color: inherit;
}

.card-text {
  font-size: 14px;
  line-height: 1.7;
  color: inherit;
  opacity: 0.78;
}

/* ===== Glass Panel ===== */
.glass-panel {
  background: var(--clr-glass);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius);
  padding: 28px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(21, 37, 54, 0.18);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 11px 28px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--clr-gold);
  border-color: var(--clr-gold);
  color: var(--clr-night);
}

.btn-primary:hover {
  background: #B8893A;
  border-color: #B8893A;
  color: var(--clr-night);
}

.btn-outline {
  background: transparent;
  border-color: var(--clr-gold);
  color: var(--clr-ink);
}

.btn-outline:hover {
  background: var(--clr-gold-wash);
  color: var(--clr-ink);
}

/* ===== Image Placeholder ===== */
.image-placeholder {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(140deg, var(--clr-bg-deep) 0%, var(--clr-bg) 40%, var(--clr-gold-wash) 100%);
  border: 1px solid rgba(36, 30, 24, 0.08);
}

.image-placeholder::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.image-placeholder-4x3::before {
  padding-top: 75%;
}

.image-placeholder-1x1::before {
  padding-top: 100%;
}

.image-placeholder .ph-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--clr-gold);
  opacity: 0.8;
  pointer-events: none;
}

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

/* ===== Content Body ===== */
.content-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--clr-ink);
}

.content-body h2 {
  font-size: 24px;
  margin: 40px 0 14px;
}

.content-body h3 {
  font-size: 18px;
  margin: 28px 0 10px;
}

.content-body p {
  margin: 0 0 16px;
}

.content-body a {
  color: var(--clr-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-body a:hover {
  color: var(--clr-night);
  text-decoration-color: var(--clr-gold);
}

.content-body ul,
.content-body ol {
  margin: 0 0 16px;
}

.content-body li {
  margin-bottom: 6px;
}

/* ===== Gold Rule ===== */
.gold-rule {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, var(--clr-gold) 0%, rgba(199, 154, 74, 0.25) 60%, transparent 100%);
  margin: 24px 0;
}

/* ===== Table ===== */
.table-kit {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--clr-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.table-kit th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--clr-ink);
  background: var(--clr-bg-deep);
  border-bottom: 2px solid var(--clr-gold);
}

.table-kit td {
  padding: 11px 16px;
  border-bottom: 1px solid rgba(36, 30, 24, 0.08);
  color: var(--clr-ink-secondary);
}

.table-kit tr:last-child td {
  border-bottom: none;
}

@media (max-width: 767px) {
  .table-kit {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* ===== Tabs ===== */
.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-btn {
  display: inline-block;
  padding: 9px 22px;
  border: 1px solid rgba(36, 30, 24, 0.18);
  border-radius: 999px;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-ink-secondary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.tab-btn:hover {
  border-color: var(--clr-gold);
  color: var(--clr-gold);
}

.tab-btn[aria-selected="true"] {
  background: var(--clr-gold);
  border-color: var(--clr-gold);
  color: var(--clr-night);
  font-weight: 600;
}

/* ===== Accordion ===== */
.accordion {
  border: 1px solid rgba(36, 30, 24, 0.1);
  border-radius: 10px;
  background: var(--clr-bg);
  overflow: hidden;
}

.accordion-item + .accordion-item {
  border-top: 1px solid rgba(36, 30, 24, 0.08);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--clr-ink);
  transition: background 0.2s;
}

.accordion-trigger:hover {
  background: var(--clr-gold-wash);
}

.accordion-trigger[aria-expanded="true"] {
  color: var(--clr-gold);
}

.accordion-icon {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  transition: transform 0.25s;
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
}

.accordion-panel {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-trigger[aria-expanded="true"] + .accordion-panel {
  padding: 0 20px 18px;
  max-height: 600px;
}

.accordion-panel p {
  font-size: 14px;
  color: var(--clr-ink-secondary);
}

/* ===== Reveal Motion ===== */
[data-reveal] {
  opacity: 0.82;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal][data-reveal-delay="1"] {
  transition-delay: 80ms;
}

[data-reveal][data-reveal-delay="2"] {
  transition-delay: 160ms;
}

[data-reveal][data-reveal-delay="3"] {
  transition-delay: 240ms;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover,
  .btn:hover {
    transform: none;
  }

  .site-nav,
  .nav-backdrop {
    transition: none;
  }

  .skip-link {
    transition: none;
  }
}

/* ===== Responsive ===== */
@media (max-width: 479px) {
  .brand-sub {
    display: none;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    gap: 32px;
  }
}