/* ====================================================
   手机赛场 shared site.css
   域名 bsport-m.com.cn
   ==================================================== */

/* ---------- Variables ---------- */
:root {
  --color-deep: #0A1F44;
  --color-gold: #D4AF37;
  --color-red: #E63946;
  --color-night: #0D2B5B;
  --color-ice: #B8C7E0;
  --color-bright-gold: #F4D06F;
  --color-mist: #F5F7FA;
  --color-dark: #081426;
  --color-body: #4A5568;

  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  --container-w: 1240px;
  --gutter: clamp(20px, 4vw, 40px);
  --header-h: 76px;
  --header-h-mobile: 62px;

  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;

  --shadow-s: 0 2px 10px rgba(8, 20, 38, 0.08);
  --shadow-m: 0 10px 30px rgba(8, 20, 38, 0.14);
  --shadow-l: 0 20px 50px rgba(8, 20, 38, 0.22);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.22s var(--ease);
}

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

* {
  margin: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  background: var(--color-mist);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

ul,
ol {
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-deep);
  line-height: 1.25;
}

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

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

@media (min-width: 900px) {
  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  ::-webkit-scrollbar-track {
    background: var(--color-mist);
  }
  ::-webkit-scrollbar-thumb {
    background: var(--color-deep);
    border-radius: 8px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-night);
  }
}

/* ---------- Base links in content ---------- */
.main-content a:not([class]) {
  color: var(--color-night);
  text-decoration: underline;
  text-decoration-color: var(--color-gold);
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
  transition: color var(--transition), text-decoration-color var(--transition);
}

.main-content a:not([class]):hover {
  color: var(--color-deep);
  text-decoration-color: var(--color-red);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.main-content {
  min-height: 70vh;
}

.section {
  padding: 80px 0;
}

.section--tight {
  padding: 48px 0;
}

.section--alt {
  background: var(--color-mist);
}

.section--dark {
  background: var(--color-deep);
  color: rgba(245, 247, 250, 0.85);
}

.section--dark .section-title {
  color: var(--color-mist);
}

.section--dark .section-lead {
  color: rgba(184, 199, 224, 0.82);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

/* ---------- Main hero (home) ---------- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--color-deep);
  color: var(--color-mist);
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184, 199, 224, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 199, 224, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -30%;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-split {
  position: relative;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
  width: 100%;
  padding-block: 64px;
}

.hero-visual {
  position: relative;
  min-height: 340px;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: var(--color-deep);
  color: var(--color-mist);
  padding: calc(var(--header-h) + 56px) 0 52px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184, 199, 224, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 199, 224, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 220px;
  height: 120px;
  background: linear-gradient(135deg, transparent 0 55%, rgba(212, 175, 55, 0.1) 55% 100%);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-hero .page-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.1;
  margin: 20px 0 10px;
  letter-spacing: -0.02em;
  color: var(--color-mist);
}

.page-hero .section-lead {
  color: rgba(184, 199, 224, 0.85);
  max-width: 640px;
}

/* ---------- Chapter / narrative ---------- */
.chapter {
  position: relative;
  padding: 64px 0;
}

.chapter-index {
  display: block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.42em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head {
  margin-bottom: 40px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-deep);
}

.section-lead {
  color: var(--color-body);
  max-width: 720px;
  font-size: 17px;
  margin-top: 12px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  border-radius: var(--radius-s);
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform 0.18s var(--ease), box-shadow var(--transition);
}

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

.btn:focus-visible {
  outline-color: var(--color-bright-gold);
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-deep);
}

.btn--gold:hover {
  background: var(--color-bright-gold);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
}

.btn--ghost {
  border-color: rgba(245, 247, 250, 0.4);
  color: var(--color-mist);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--color-mist);
  background: rgba(245, 247, 250, 0.1);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-header.is-solid {
  background: rgba(10, 31, 68, 0.9);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(8, 20, 38, 0.22);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  gap: 24px;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 20px;
  z-index: 4000;
  background: var(--color-gold);
  color: var(--color-deep);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: 0 0 var(--radius-m) var(--radius-m);
  transform: translateY(-130%);
  transition: transform 0.2s var(--ease);
  text-decoration: none;
}

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

/* Brand */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 8px 8px 8px 3px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-bright-gold) 55%, var(--color-gold) 100%);
  box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
  flex-shrink: 0;
  overflow: hidden;
  transition: transform var(--transition);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 2px solid var(--color-deep);
  border-radius: 3px;
}

.brand-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  transform: translate(-50%, -50%);
  border: 2px solid var(--color-deep);
  border-radius: 50%;
}

.brand-logo:hover .brand-mark {
  transform: rotate(-5deg) scale(1.05);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
  color: #ffffff;
  transition: color var(--transition);
  white-space: nowrap;
}

.brand-logo:hover .brand-name {
  color: var(--color-bright-gold);
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-link {
  display: block;
  position: relative;
  padding: 10px 16px;
  color: rgba(245, 247, 250, 0.82);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-s);
  transition: color var(--transition), background var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #ffffff;
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--color-bright-gold);
}

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--color-bright-gold);
}

/* Nav toggle */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(245, 247, 250, 0.25);
  border-radius: var(--radius-s);
  background: rgba(10, 31, 68, 0.45);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.nav-toggle:focus-visible {
  outline-color: var(--color-bright-gold);
}

.nav-toggle-line {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--color-mist);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s ease, top 0.25s var(--ease);
}

.nav-toggle-line:nth-child(1) {
  top: 15px;
}

.nav-toggle-line:nth-child(2) {
  top: 21px;
}

.nav-toggle-line:nth-child(3) {
  top: 27px;
}

.site-header[data-open="true"] .nav-toggle-line:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header[data-open="true"] .nav-toggle-line:nth-child(3) {
  top: 21px;
  transform: rotate(-45deg);
}

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 3000;
  pointer-events: none;
}

.scroll-progress-bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-bright-gold) 60%, var(--color-red) 100%);
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.glass-card {
  background: rgba(245, 247, 250, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius-l);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-m);
  border-color: rgba(212, 175, 55, 0.4);
}

/* ---------- Stats ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.stat-item {
  background: var(--color-mist);
  border-radius: var(--radius-m);
  padding: 22px 24px;
  border-left: 3px solid var(--color-gold);
  transition: box-shadow var(--transition), transform var(--transition);
}

.stat-item:hover {
  box-shadow: var(--shadow-s);
  transform: translateY(-2px);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-deep);
}

.stat-label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-body);
  margin-top: 6px;
}

.section--dark .stat-item {
  background: rgba(255, 255, 255, 0.06);
  border-left-color: var(--color-gold);
}

.section--dark .stat-value {
  color: var(--color-mist);
}

.section--dark .stat-label {
  color: rgba(184, 199, 224, 0.8);
}

/* ---------- Data rows ---------- */
.data-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(10, 31, 68, 0.08);
}

.data-row:last-child {
  border-bottom: none;
}

.data-label {
  font-size: 14px;
  color: var(--color-body);
}

.data-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-deep);
}

.data-value--gold {
  color: var(--color-gold);
}

/* ---------- Progress ---------- */
.progress {
  height: 6px;
  background: rgba(10, 31, 68, 0.1);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-bright-gold));
  transition: width 0.8s var(--ease);
}

.section--dark .progress {
  background: rgba(184, 199, 224, 0.18);
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-gold), rgba(212, 175, 55, 0.12));
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 3px solid var(--color-gold);
  background: var(--color-mist);
  box-sizing: border-box;
}

/* ---------- Tags ---------- */
.tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(10, 31, 68, 0.06);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-deep);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.tag:hover {
  background: var(--color-deep);
  color: var(--color-mist);
}

.section--dark .tag {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-ice);
}

.section--dark .tag:hover {
  background: var(--color-gold);
  color: var(--color-deep);
}

/* ---------- Image frame ---------- */
.img-frame {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-night), var(--color-deep));
  aspect-ratio: 4 / 3;
}

.img-frame::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(184, 199, 224, 0.14);
  border-radius: calc(var(--radius-l) - 8px);
  pointer-events: none;
}

.img-frame img,
.img-frame .frame-fill {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.68);
}

.breadcrumb a {
  color: rgba(245, 247, 250, 0.68);
  text-decoration: none;
  transition: color var(--transition);
}

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

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(245, 247, 250, 0.32);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(245, 247, 250, 0.72);
  position: relative;
  z-index: 10;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-night) 40%, rgba(212, 175, 55, 0.3) 75%, var(--color-gold) 100%);
}

.site-footer::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 0;
  width: 140px;
  height: 56px;
  background: linear-gradient(135deg, transparent 50%, rgba(212, 175, 55, 0.06) 50%);
  pointer-events: none;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: clamp(28px, 4vw, 56px);
  max-width: var(--container-w);
  margin-inline: auto;
  padding: 64px var(--gutter) 48px;
}

.footer-col {
  min-width: 0;
}

.footer-brand .brand-logo {
  margin-bottom: 18px;
}

.site-footer .brand-logo .brand-name {
  color: var(--color-mist);
  font-size: 22px;
}

.site-footer .brand-logo:hover .brand-name {
  color: var(--color-bright-gold);
}

.footer-tagline {
  font-size: 15px;
  line-height: 1.65;
  color: rgba(245, 247, 250, 0.66);
  max-width: 300px;
  margin: 0 0 14px;
}

.footer-note {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.46);
  max-width: 300px;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-mist);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 18px;
  padding-bottom: 12px;
  position: relative;
}

.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--color-gold);
}

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

.footer-links li + li {
  margin-top: 10px;
}

.footer-links a {
  color: rgba(245, 247, 250, 0.72);
  text-decoration: none;
  font-size: 15px;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-bright-gold);
  padding-left: 4px;
}

.footer-contact p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.72);
}

.footer-col .footer-note {
  margin-top: 12px;
}

.footer-meta {
  border-top: 1px solid rgba(184, 199, 224, 0.12);
  padding: 20px var(--gutter);
}

.footer-meta-inner {
  max-width: var(--container-w);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 24px;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.52);
}

.footer-meta-inner a {
  color: rgba(245, 247, 250, 0.52);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-meta-inner a:hover {
  color: var(--color-bright-gold);
}

/* ---------- To top ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(184, 199, 224, 0.28);
  background: rgba(10, 31, 68, 0.88);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--color-gold);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition), border-color var(--transition);
  z-index: 900;
}

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

.to-top:hover,
.to-top:focus-visible {
  background: var(--color-deep);
  border-color: var(--color-gold);
  color: var(--color-bright-gold);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .header-inner {
    height: var(--header-h-mobile);
  }

  .site-header.is-solid .nav-toggle {
    background: rgba(10, 31, 68, 0.6);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 82vw);
    background: linear-gradient(160deg, var(--color-night), var(--color-deep));
    box-shadow: -16px 0 40px rgba(8, 20, 38, 0.35);
    padding: calc(var(--header-h-mobile) + 28px) 28px 40px;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.35s var(--ease), visibility 0s linear 0.35s;
    z-index: 1050;
    overflow-y: auto;
    border-left: 1px solid rgba(212, 175, 55, 0.18);
    align-items: flex-start;
  }

  .site-header[data-open="true"] .site-nav {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.35s var(--ease), visibility 0s linear 0s;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: 100%;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 15px 8px;
    font-size: 17px;
    font-weight: 600;
    border-bottom: 1px solid rgba(184, 199, 224, 0.12);
    color: rgba(245, 247, 250, 0.92);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    color: var(--color-bright-gold);
    background: rgba(212, 175, 55, 0.08);
    border-radius: var(--radius-s);
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h-mobile) + 32px);
    padding-bottom: 48px;
    align-items: flex-start;
  }

  .hero-split {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-block: 40px;
  }

  .page-hero {
    padding-top: calc(var(--header-h-mobile) + 40px);
    padding-bottom: 40px;
  }

  .section {
    padding: 56px 0;
  }

  .chapter {
    padding: 44px 0;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 36px 28px;
    padding: 48px var(--gutter) 40px;
  }

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

  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 560px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .hero-visual {
    min-height: 240px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .glass-card:hover {
    transform: none;
  }

  .stat-item:hover {
    transform: none;
  }

  .brand-logo:hover .brand-mark {
    transform: none;
  }

  .to-top,
  .site-nav,
  .nav-toggle-line,
  .nav-link::after,
  .skip-link,
  .scroll-progress-bar {
    transition: none;
  }
}