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

:root {
  --c-bg-deep: #0A1428;
  --c-bg-secondary: #0D1B2E;
  --c-bg-info: #1B3A6B;
  --c-accent-purple: #7A5AF8;
  --c-accent-gold: #E6C25A;
  --c-text-primary: #E8EDF7;
  --c-text-secondary: #9AA8C0;
  --c-gradient-helper: #4B2E83;
  --font-heading: "Orbitron", "Rajdhani", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --header-h-desktop: 84px;
  --header-h-mobile: 64px;
  --container-max: 1320px;
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-header: 0 4px 24px rgba(0, 0, 0, 0.45);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text-primary);
  background-color: var(--c-bg-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.nav-lock {
  overflow: hidden;
}

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

a {
  color: var(--c-accent-purple);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--c-accent-gold);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

::selection {
  background: var(--c-accent-purple);
  color: #fff;
}

/* ===== Container & Base Layout ===== */
.container {
  width: min(100% - 32px, var(--container-max));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-2xl) var(--space-xl);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--c-text-primary);
  font-weight: 600;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 500;
}

p {
  color: var(--c-text-secondary);
  line-height: 1.7;
}

/* ===== Skip Link ===== */
.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 2000;
  background: var(--c-accent-gold);
  color: #0A1428;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus-visible {
  top: 16px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid rgba(232, 237, 247, 0.08);
  transition: background-color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(10, 20, 40, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-header);
  border-bottom-color: rgba(122, 90, 248, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h-desktop);
  gap: var(--space-lg);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--c-text-primary);
}

.brand:hover .brand-name {
  color: var(--c-accent-gold);
}

.brand-mark {
  position: relative;
  width: 40px;
  height: 40px;
  display: inline-block;
}

.brand-mark-core {
  position: absolute;
  inset: 8px;
  background: linear-gradient(135deg, var(--c-accent-purple), var(--c-gradient-helper));
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  transition: transform var(--transition-base);
}

.brand-mark-orbit {
  position: absolute;
  inset: 0;
  border: 2px solid var(--c-accent-gold);
  border-radius: 50%;
  opacity: 0.6;
  transition: transform var(--transition-base);
}

.brand:hover .brand-mark-orbit {
  transform: rotate(45deg) scale(1.1);
  opacity: 1;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
  transition: color var(--transition-fast);
}

.brand-sub {
  font-family: var(--font-heading);
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--c-text-secondary);
  text-transform: uppercase;
}

/* Header Meta / Quick CTA */
.nav-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-cta {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--c-text-secondary);
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-cta:hover {
  color: var(--c-accent-gold);
  border-color: rgba(230, 194, 90, 0.4);
  background: rgba(230, 194, 90, 0.06);
}

/* Search Button */
.nav-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-left: 4px;
  border: 1px solid rgba(154, 168, 192, 0.3);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-search:hover {
  border-color: var(--c-accent-purple);
  background: rgba(122, 90, 248, 0.15);
}

.search-icon {
  position: relative;
  width: 14px;
  height: 14px;
  border: 2px solid var(--c-text-secondary);
  border-radius: 50%;
  transition: border-color var(--transition-fast);
}

.search-icon::after {
  content: "";
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 6px;
  height: 2px;
  background: var(--c-text-secondary);
  transform: rotate(45deg);
  border-radius: 2px;
  transition: background-color var(--transition-fast);
}

.nav-search:hover .search-icon {
  border-color: var(--c-accent-gold);
}

.nav-search:hover .search-icon::after {
  background: var(--c-accent-gold);
}

/* Search Panel */
.search-panel {
  display: none;
  border-top: 1px solid rgba(122, 90, 248, 0.25);
  background: rgba(13, 27, 46, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.search-panel.is-open {
  display: block;
}

.search-panel-inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-block: var(--space-md);
}

.search-panel-label {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--c-accent-gold);
  text-transform: uppercase;
  white-space: nowrap;
}

.search-input {
  flex: 1;
  min-width: 0;
  background: rgba(10, 20, 40, 0.8);
  border: 1px solid rgba(122, 90, 248, 0.4);
  border-radius: var(--radius-sm);
  color: var(--c-text-primary);
  padding: 10px 16px;
  font-size: 14px;
  transition: border-color var(--transition-fast);
}

.search-input::placeholder {
  color: var(--c-text-secondary);
}

.search-input:focus-visible {
  outline: none;
  border-color: var(--c-accent-gold);
}

.search-panel-hint {
  font-size: 12px;
  color: var(--c-text-secondary);
  white-space: nowrap;
}

/* Primary Nav */
.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--c-text-primary);
  padding: 10px 14px;
  position: relative;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--c-accent-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--c-accent-gold);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

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

/* Nav Toggle (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(154, 168, 192, 0.3);
  border-radius: var(--radius-sm);
  background: rgba(10, 20, 40, 0.6);
}

.toggle-bar {
  width: 20px;
  height: 2px;
  background: var(--c-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  background: var(--c-bg-secondary);
  border-top: 1px solid rgba(122, 90, 248, 0.25);
  padding-top: var(--space-2xl);
  overflow: hidden;
}

.corner-light {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 90, 248, 0.12), transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 1.6fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer-brand .brand {
  margin-bottom: var(--space-md);
}

.footer-desc {
  font-size: 14px;
  max-width: 340px;
  margin-bottom: var(--space-lg);
}

.footer-trust {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: var(--space-md);
  background: rgba(10, 20, 40, 0.6);
  border-left: 3px solid var(--c-accent-purple);
  border-radius: var(--radius-sm);
  max-width: 420px;
}

.trust-line {
  flex-shrink: 0;
  width: 2px;
  align-self: stretch;
  background: linear-gradient(180deg, var(--c-accent-gold), var(--c-accent-purple));
  border-radius: 2px;
}

.trust-text {
  font-size: 12px;
  color: var(--c-text-secondary);
  margin: 0;
  line-height: 1.6;
}

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

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

.footer-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-accent-gold);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(230, 194, 90, 0.2);
  margin-bottom: var(--space-sm);
}

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

.footer-link {
  font-size: 14px;
  color: var(--c-text-secondary);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-link:hover {
  color: var(--c-accent-gold);
  padding-left: 4px;
}

.footer-contact {
  gap: 10px;
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-label {
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--c-text-secondary);
  opacity: 0.7;
  text-transform: uppercase;
}

.contact-text {
  font-size: 14px;
  color: var(--c-text-secondary);
  line-height: 1.5;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: 1px solid rgba(154, 168, 192, 0.15);
  position: relative;
  z-index: 1;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-copyright,
.footer-note {
  font-size: 12px;
  color: var(--c-text-secondary);
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
}

.footer-legal .legal-link {
  font-size: 13px;
  color: var(--c-text-secondary);
}

.footer-legal .legal-link:hover {
  color: var(--c-accent-gold);
}

/* ===== Generic Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-accent-gold), #d4a437);
  color: #0A1428;
  border-color: rgba(230, 194, 90, 0.6);
}

.btn-primary:hover {
  box-shadow: 0 0 24px rgba(230, 194, 90, 0.35);
  transform: translateY(-2px);
  color: #0A1428;
}

.btn-secondary {
  background: transparent;
  color: var(--c-text-primary);
  border-color: var(--c-accent-purple);
}

.btn-secondary:hover {
  background: rgba(122, 90, 248, 0.15);
  border-color: var(--c-accent-gold);
  color: var(--c-accent-gold);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: var(--space-md);
  font-size: 13px;
}

.breadcrumb-item {
  color: var(--c-text-secondary);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-accent-purple);
}

.breadcrumb-item.is-current {
  color: var(--c-text-primary);
}

.breadcrumb-item a {
  color: var(--c-text-secondary);
}

.breadcrumb-item a:hover {
  color: var(--c-accent-gold);
}

/* ===== Generic Layout Grids ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

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

/* ===== Cards ===== */
.card {
  background: var(--c-bg-secondary);
  border: 1px solid rgba(154, 168, 192, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  border-color: rgba(122, 90, 248, 0.5);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
}

.card-body {
  color: var(--c-text-secondary);
  font-size: 14px;
}

.card-footer {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(154, 168, 192, 0.15);
}

/* ===== Tags ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--c-text-secondary);
  background: rgba(27, 58, 107, 0.6);
  border: 1px solid rgba(122, 90, 248, 0.3);
  border-radius: 3px;
  padding: 4px 10px;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
}

.tag:hover {
  color: var(--c-accent-gold);
  border-color: var(--c-accent-gold);
  background: rgba(230, 194, 90, 0.08);
}

.tag.is-active {
  color: #0A1428;
  background: var(--c-accent-purple);
  border-color: var(--c-accent-purple);
}

/* ===== Panels ===== */
.panel {
  background: var(--c-bg-secondary);
  border: 1px solid rgba(154, 168, 192, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.panel + .panel {
  margin-top: var(--space-sm);
}

.panel-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: rgba(27, 58, 107, 0.3);
  text-align: left;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.panel-trigger:hover {
  background: rgba(122, 90, 248, 0.15);
  color: var(--c-accent-gold);
}

.panel-icon {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--c-accent-gold);
  border-bottom: 2px solid var(--c-accent-gold);
  transform: rotate(45deg);
  transition: transform var(--transition-base);
}

.panel[data-open] .panel-icon {
  transform: rotate(225deg);
}

.panel-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.panel[data-open] .panel-content {
  max-height: 600px;
}

.panel-content-inner {
  padding: var(--space-md) var(--space-lg);
  font-size: 14px;
  color: var(--c-text-secondary);
  border-top: 1px solid rgba(154, 168, 192, 0.1);
}

/* ===== Tabs ===== */
.tabs {
  background: var(--c-bg-secondary);
  border: 1px solid rgba(154, 168, 192, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  background: rgba(27, 58, 107, 0.4);
  border-bottom: 1px solid rgba(122, 90, 248, 0.2);
}

.tab-trigger {
  padding: 14px 24px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--c-text-secondary);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.tab-trigger:hover {
  color: var(--c-text-primary);
  background: rgba(122, 90, 248, 0.1);
}

.tab-trigger.is-active {
  color: var(--c-accent-gold);
  border-bottom-color: var(--c-accent-gold);
  background: rgba(230, 194, 90, 0.06);
}

.tab-panel {
  display: none;
  padding: var(--space-lg);
}

.tab-panel.is-active {
  display: block;
  animation: tab-fade var(--transition-base);
}

@keyframes tab-fade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.has-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(13, 27, 46, 0.9);
  border: 1px solid rgba(122, 90, 248, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-base);
  pointer-events: none;
}

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

.back-to-top:hover {
  border-color: var(--c-accent-gold);
  box-shadow: 0 0 16px rgba(230, 194, 90, 0.3);
}

.back-to-top-icon {
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--c-text-primary);
  border-left: 2px solid var(--c-text-primary);
  transform: rotate(45deg);
  transition: border-color var(--transition-fast);
}

.back-to-top:hover .back-to-top-icon {
  border-color: var(--c-accent-gold);
}

/* ===== Content Hero / Visual Frame ===== */
.visual-frame {
  position: relative;
  border: 1px solid rgba(122, 90, 248, 0.25);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(27, 58, 107, 0.4), rgba(75, 46, 131, 0.2));
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(122, 90, 248, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 90, 248, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.visual-frame::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(230, 194, 90, 0.15), transparent 70%);
  pointer-events: none;
}

.data-line {
  position: relative;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--c-accent-purple), var(--c-accent-gold), transparent);
  border-radius: 2px;
  overflow: hidden;
}

.data-line::after {
  content: "";
  position: absolute;
  top: 0;
  left: -40%;
  width: 30%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  animation: data-flow 3s infinite ease-in-out;
}

@keyframes data-flow {
  0% { left: -40%; }
  100% { left: 130%; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-cta {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: var(--header-h-mobile);
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    top: var(--header-h-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 20, 40, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: var(--space-lg) var(--space-md) var(--space-2xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .primary-nav[data-open] {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-bottom: var(--space-lg);
  }

  .nav-link {
    display: block;
    padding: 14px var(--space-md);
    font-size: 16px;
    border-bottom: 1px solid rgba(154, 168, 192, 0.1);
  }

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

  .nav-meta {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .nav-cta {
    display: inline-flex;
    justify-content: center;
    border: 1px solid rgba(122, 90, 248, 0.3);
    background: rgba(27, 58, 107, 0.4);
    padding: 12px;
  }

  .nav-search {
    width: 100%;
    height: 44px;
    justify-content: center;
  }

  .search-panel-inner {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    padding-block: var(--space-md);
  }

  .search-panel-hint {
    display: none;
  }

  .site-footer {
    padding-top: var(--space-xl);
  }

  .footer-nav {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .tab-list {
    flex-direction: column;
  }

  .tab-trigger {
    text-align: left;
    border-bottom: 1px solid rgba(154, 168, 192, 0.1);
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }

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

  .brand-sub {
    font-size: 9px;
    letter-spacing: 3px;
  }
}

@media (max-width: 480px) {
  .brand-sub {
    display: none;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .footer-legal {
    flex-wrap: wrap;
  }
}

/* ===== 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;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}