/* ==========================================================================
   BSPORTS必一 — 全站共享样式
   深蓝数据底座 × 亮橙运动脉冲
   ========================================================================== */

/* ---------- 01. Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--clr-text);
  background: var(--clr-white);
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

a {
  color: var(--clr-primary);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  font-weight: 900;
  line-height: 1.2;
  color: var(--clr-primary);
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

/* ---------- 02. CSS Variables ---------- */
:root {
  --clr-primary: #0A2540;
  --clr-primary-deep: #06172E;
  --clr-primary-soft: #1B3A5B;
  --clr-accent: #FF5A1F;
  --clr-accent-soft: #FF8A5C;
  --clr-accent-pale: #FFF1EB;
  --clr-white: #FFFFFF;
  --clr-gray-bg: #F5F7FA;
  --clr-gray-border: #D0D5DD;
  --clr-text: #333333;

  --font-headline: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Sans Pro", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "Roboto Mono", "Consolas", "Courier New", monospace;

  --fs-h1: clamp(2.5rem, 6vw, 4rem);
  --fs-h2: clamp(1.75rem, 3.5vw, 2.5rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.8rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-tiny: 0.75rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.875rem;
  --space-4: 1.25rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6.5rem;

  --container-max: 1200px;
  --container-pad: clamp(1rem, 4vw, 1.5rem);
  --header-h: 88px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 10px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 8px 28px rgba(10, 37, 64, 0.12);
  --shadow-accent: 0 8px 24px rgba(255, 90, 31, 0.18);
}

/* ---------- 03. Accessibility ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  background: var(--clr-accent);
  color: var(--clr-white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: var(--shadow-accent);
  transition: top 0.25s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 1rem;
  outline: 3px solid var(--clr-primary);
  outline-offset: 2px;
}

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

body.no-scroll {
  overflow: hidden;
}

/* ---------- 04. Scroll Progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-soft));
  z-index: 2000;
  pointer-events: none;
}

/* ---------- 05. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-gray-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* ---------- 06. Brand ---------- */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-soft));
  color: var(--clr-white);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.4rem;
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--clr-accent);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.brand-name {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: 0.03em;
  color: var(--clr-primary);
  white-space: nowrap;
}

.brand-name em {
  font-style: normal;
  font-weight: 700;
  font-size: 0.88em;
  color: var(--clr-accent);
  margin-left: 4px;
}

/* ---------- 07. Desktop Nav ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-list a {
  color: var(--clr-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.93rem;
  padding: var(--space-2) var(--space-1);
  position: relative;
  transition: color 0.2s ease;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.nav-list a:hover {
  color: var(--clr-primary);
}

.nav-list a:hover::after,
.nav-list a[aria-current="page"]::after {
  width: 100%;
}

.nav-list a[aria-current="page"] {
  color: var(--clr-primary);
  font-weight: 700;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.3rem;
  background: var(--clr-accent);
  color: var(--clr-white);
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-accent);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  background: var(--clr-accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 90, 31, 0.24);
}

.nav-cta:active {
  transform: translateY(0);
}

/* ---------- 08. Mobile Nav Toggle ---------- */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  transition: border-color 0.2s ease;
}

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

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-primary);
  border-radius: 999px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: var(--clr-white);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-5) var(--container-pad) var(--space-6);
    border-bottom: 1px solid var(--clr-gray-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
  }

  .site-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav-list a {
    display: block;
    padding: 0.75rem var(--space-2);
    font-size: 1.05rem;
    border-bottom: 1px solid var(--clr-gray-bg);
  }

  .nav-list a::after {
    display: none;
  }

  .nav-list a[aria-current="page"] {
    background: var(--clr-accent-pale);
    border-color: transparent;
    border-radius: var(--radius-sm);
  }

  .nav-cta {
    margin-top: var(--space-3);
    padding: 0.85rem 1rem;
    font-size: 1rem;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 68px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }

  .brand-mark::after {
    width: 11px;
    height: 11px;
  }

  .brand-name {
    font-size: 1.1rem;
  }
}

/* ---------- 09. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-white);
}

.btn-primary:hover {
  background: var(--clr-primary-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  background: var(--clr-accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(255, 90, 31, 0.26);
}

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

.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
}

/* ---------- 10. Layout Utilities ---------- */
.content-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--space-7) 0;
}

.section-tight {
  padding: var(--space-5) 0;
}

#main-content {
  min-height: 70vh;
  outline: none;
}

#main-content:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: -3px;
}

/* ---------- 11. Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: var(--fs-small);
  color: var(--clr-text);
  opacity: 0.8;
  padding: var(--space-4) 0;
}

.breadcrumbs a {
  color: var(--clr-primary);
  text-decoration: none;
  font-weight: 600;
}

.breadcrumbs a:hover {
  color: var(--clr-accent);
}

.breadcrumbs .sep {
  color: var(--clr-gray-border);
  pointer-events: none;
}

.breadcrumbs [aria-current="page"] {
  color: var(--clr-text);
  font-weight: 400;
}

/* ---------- 12. Grids ---------- */
.grid-2x {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.grid-3x {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

@media (max-width: 900px) {
  .grid-3x {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2x,
  .grid-3x {
    grid-template-columns: 1fr;
  }
}

/* ---------- 13. Section Heading ---------- */
.section-head {
  margin-bottom: var(--space-6);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--space-2);
}

.section-label::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 999px;
}

.section-title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: var(--fs-h2);
  color: var(--clr-primary);
  line-height: 1.2;
}

.section-desc {
  color: var(--clr-text);
  opacity: 0.72;
  margin-top: var(--space-3);
  max-width: 60ch;
}

/* ---------- 14. Tag Label ---------- */
.tag-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.85rem;
  background: var(--clr-accent-pale);
  border: 1px solid rgba(255, 90, 31, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--clr-accent);
  text-transform: uppercase;
  white-space: nowrap;
}

.tag-label::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--clr-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ---------- 15. Cards ---------- */
.plate-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  position: relative;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.plate-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: var(--space-5);
  width: 48px;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 0 0 999px 999px;
}

.plate-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.plate-card h3 {
  margin-bottom: var(--space-3);
}

.plate-card p {
  color: var(--clr-text);
  opacity: 0.8;
}

/* ---------- 16. Stat Card & Data ---------- */
.stat-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  text-align: center;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.data-stat {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 2rem;
  color: var(--clr-primary);
  line-height: 1.1;
  display: block;
}

.data-stat.is-accent {
  color: var(--clr-accent);
}

.stat-label {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--clr-text);
  opacity: 0.7;
}

/* ---------- 17. Image Frames ---------- */
.img-frame {
  position: relative;
  display: block;
  background: linear-gradient(135deg, var(--clr-gray-bg), #E8EDF5);
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.img-frame-16x9 {
  aspect-ratio: 16 / 9;
}

.img-frame-1x1 {
  aspect-ratio: 1 / 1;
}

.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.img-frame:hover img {
  transform: scale(1.03);
}

.img-frame-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 2rem;
  opacity: 0.14;
  text-transform: uppercase;
}

/* ---------- 18. Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--clr-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--clr-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 300;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease;
}

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

.back-to-top:hover {
  background: var(--clr-accent);
  box-shadow: var(--shadow-accent);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---------- 19. Footer ---------- */
.site-footer {
  background: var(--clr-primary);
  color: rgba(255, 255, 255, 0.8);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-soft));
  z-index: 1;
}

.footer-trust {
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-trust-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.footer-trust-live {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-data);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clr-accent-soft);
  text-transform: uppercase;
  white-space: nowrap;
}

.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-accent);
  position: relative;
}

.pulse-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--clr-accent);
  animation: pulse-ring 1.5s ease-out infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.5);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

.footer-trust-items {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  font-size: var(--fs-small);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
}

.footer-trust-items span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-trust-items span::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--clr-accent);
  border-radius: 50%;
  opacity: 0.7;
}

.footer-main {
  padding: var(--space-7) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1.2fr;
  gap: var(--space-6);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--clr-white);
  text-decoration: none;
  margin-bottom: var(--space-3);
}

.footer-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--clr-accent);
  color: var(--clr-white);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.2rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.footer-brand em {
  font-style: normal;
  font-weight: 700;
  font-size: 0.85em;
  color: var(--clr-accent-soft);
  margin-left: 4px;
}

.footer-tagline {
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 34ch;
  color: rgba(255, 255, 255, 0.55);
}

.footer-heading {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--clr-white);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-heading-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  flex-shrink: 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--clr-accent-soft);
  padding-left: 4px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.contact-label::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--clr-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-value {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  text-decoration: none;
  word-break: break-all;
  display: inline-block;
}

a.contact-value:hover {
  color: var(--clr-accent-soft);
}

.footer-contact-note {
  margin-top: var(--space-4);
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.42);
  line-height: 1.6;
  border-left: 2px solid var(--clr-accent);
  padding-left: var(--space-3);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-4) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-legal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: var(--clr-accent-soft);
}

.footer-sep {
  color: rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5) var(--space-4);
  }

  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-main {
    padding: var(--space-6) 0 var(--space-5);
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

/* ---------- 20. Motion & Reduced Motion ---------- */
@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;
    transition: none !important;
  }

  .back-to-top.is-visible {
    transform: none;
  }

  .plate-card:hover,
  .stat-card:hover,
  .nav-cta:hover,
  .btn:hover {
    transform: none;
  }
}