@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Righteous&display=swap');

/* ============================================================
   CSS 自定义属性
   ============================================================ */
:root {
  --c-primary: #99ffcc;
  --c-accent: #00ff41;
  --c-dark: #001e3c;
  --c-dark-2: #002850;
  --c-dark-3: #003366;
  --c-text: #c8ffe8;
  --c-text-muted: #7ab89a;
  --c-card-bg: rgba(0, 40, 80, 0.72);
  --c-card-border: rgba(153, 255, 204, 0.18);
  --c-glow: rgba(0, 255, 65, 0.25);
  --c-glow-primary: rgba(153, 255, 204, 0.15);
  --radius: 10px;
  --radius-lg: 18px;
  --nav-h: 64px;
  --font-head: 'Righteous', 'Poppins', sans-serif;
  --font-body: 'Poppins', system-ui, -apple-system, sans-serif;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 4px 24px rgba(0, 255, 65, 0.10), 0 1px 4px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 36px rgba(153, 255, 204, 0.22), 0 2px 8px rgba(0,0,0,0.5);
}

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

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

body {
  background-color: var(--c-dark);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

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

ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.25;
  color: var(--c-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.45rem); }
h4 { font-size: 1rem; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   Biomimetic background texture
   ============================================================ */
.bio-root {
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 60% 40% at 20% 10%, rgba(0,255,65,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 80%, rgba(153,255,204,0.05) 0%, transparent 55%),
    var(--c-dark);
}

.bio-root::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 50%, rgba(0,255,65,0.03) 0%, transparent 40%),
    radial-gradient(circle at 70% 20%, rgba(153,255,204,0.04) 0%, transparent 35%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(0, 20, 50, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-card-border);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  color: var(--c-primary);
  font-family: var(--font-head);
  font-size: 1.1rem;
}

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

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.brand-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--c-primary);
  letter-spacing: 0.01em;
}

.main-nav {
  flex: 1;
  overflow-x: auto;
}

.main-nav > ol {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: nowrap;
}

.main-nav > ol > li > a {
  display: block;
  padding: 0.55rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-text);
  border-radius: 6px;
  white-space: nowrap;
  min-height: 40px;
  line-height: 1.2;
  display: flex;
  align-items: center;
  transition: background var(--transition), color var(--transition);
}

.main-nav > ol > li > a:hover,
.main-nav > ol > li > a[aria-current="page"] {
  background: rgba(153, 255, 204, 0.1);
  color: var(--c-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--c-card-border);
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  min-height: 44px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  color: var(--c-dark) !important;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 12px rgba(0,255,65,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,255,65,0.45);
  color: var(--c-dark) !important;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.25rem;
  min-height: 40px;
  background: transparent;
  color: var(--c-primary) !important;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--c-primary);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
}

.btn-secondary:hover {
  background: rgba(153, 255, 204, 0.1);
  box-shadow: 0 0 16px rgba(153,255,204,0.2);
  color: var(--c-accent) !important;
}

/* ============================================================
   Bio Orb (decoration)
   ============================================================ */
.bio-orb {
  position: relative;
  width: 220px;
  height: 220px;
  flex-shrink: 0;
  animation: orb-breathe 6s ease-in-out infinite;
}

.bio-orb--sm {
  width: 80px;
  height: 80px;
}

.orb-inner {
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, rgba(153,255,204,0.5), rgba(0,255,65,0.15) 60%, transparent);
  filter: blur(8px);
  animation: orb-pulse 4s ease-in-out infinite alternate;
}

.bio-orb--sm .orb-inner {
  inset: 8px;
  filter: blur(4px);
}

.orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(153, 255, 204, 0.35);
  animation: orb-ring-spin 12s linear infinite;
}

.orb-ring::before {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-accent);
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--c-accent);
}

@keyframes orb-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes orb-pulse {
  0% { opacity: 0.6; transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1.05); }
}

@keyframes orb-ring-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ============================================================
   Home Layout
   ============================================================ */
.home-main {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  align-items: start;
}

.home-article {
  min-width: 0;
}

/* Hero */
.hero-section {
  display: flex;
  align-items: center;
  gap: 3rem;
  min-height: 100vh;
  padding: 2rem 0;
}

.hero-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
}

.hero-h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 0;
}

.hero-visual {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.hero-img {
  border-radius: var(--radius-lg);
  max-width: 320px;
  box-shadow: var(--shadow-card);
}

/* Content div */
.content-section {
  padding: 3rem 0;
  border-top: 1px solid var(--c-card-border);
}

.section-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

/* Guides & Features grid */
.guides-section,
.features-section {
  padding: 3rem 0;
  border-top: 1px solid var(--c-card-border);
}

.guides-section h2,
.features-section h2 {
  margin-bottom: 1.75rem;
}

.cell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

/* Cell Card */
.cell-card {
  position: relative;
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius);
  padding: 1.4rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  backdrop-filter: blur(8px);
}

.cell-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(153, 255, 204, 0.4);
}

.cell-glow {
  position: absolute;
  top: -30px;
  right: -30px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,255,65,0.12), transparent 70%);
  pointer-events: none;
}

.cell-card h3 {
  font-size: 1rem;
  color: var(--c-primary);
  line-height: 1.35;
}

.card-date {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}

.card-desc {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 0;
}

.cell-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-accent);
  padding: 0.35rem 0;
  min-height: 40px;
}

.cell-link::after {
  content: '→';
  font-size: 0.9rem;
}

.cell-link:hover {
  color: var(--c-primary);
}

/* ============================================================
   Aside
   ============================================================ */
.home-aside,
.inner-aside {
  position: sticky;
  top: calc(var(--nav-h) + 1.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-top: 2rem;
}

.aside-block {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  backdrop-filter: blur(8px);
}

.aside-block h3 {
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-card-border);
  color: var(--c-primary);
}

.aside-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.aside-nav-list li a {
  display: block;
  padding: 0.45rem 0.6rem;
  min-height: 40px;
  display: flex;
  align-items: center;
  font-size: 0.83rem;
  color: var(--c-text-muted);
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
  line-height: 1.35;
}

.aside-nav-list li a:hover,
.aside-nav-list li a.active {
  background: rgba(153, 255, 204, 0.08);
  color: var(--c-primary);
}

.aside-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-items: center;
}

.aside-cta p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  margin: 0;
}

/* ============================================================
   Inner Page Layout
   ============================================================ */
.inner-main {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  align-items: start;
}

.inner-article {
  min-width: 0;
}

/* Article header */
.article-header-section,
.faq-header-section,
.about-header-section,
.privacy-header-section {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--c-card-border);
  margin-bottom: 2rem;
}

.article-eyebrow {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(0,255,65,0.12);
  border: 1px solid rgba(0,255,65,0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
  font-family: var(--font-body);
}

.article-meta {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.article-meta time {
  color: var(--c-accent);
}

.article-lead {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  line-height: 1.75;
  max-width: 640px;
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.article-hero-wrap {
  margin-top: 1.5rem;
}

.article-hero-img {
  border-radius: var(--radius);
  max-height: 340px;
  object-fit: cover;
  box-shadow: var(--shadow-card);
}

/* Article body content styles */
.article-body-section {
  padding: 0 0 2rem;
}

.article-body-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.article-body-content h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.4rem;
}

.article-body-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
  color: var(--c-primary);
}

.article-body-content p {
  margin-bottom: 1rem;
}

.article-body-content ul,
.article-body-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  list-style: disc;
}

.article-body-content ol {
  list-style: decimal;
}

.article-body-content li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

.article-body-content strong {
  color: var(--c-primary);
  font-weight: 600;
}

.article-body-content a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body-content blockquote {
  border-left: 3px solid var(--c-accent);
  padding-left: 1rem;
  color: var(--c-text-muted);
  margin: 1.5rem 0;
  font-style: italic;
}

.article-body-content code {
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.2);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.88em;
  color: var(--c-accent);
  font-family: 'Courier New', monospace;
}

.article-body-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.article-body-content th,
.article-body-content td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--c-card-border);
  text-align: left;
}

.article-body-content th {
  background: rgba(153,255,204,0.08);
  color: var(--c-primary);
  font-weight: 600;
}

/* Related articles */
.article-related-section {
  padding: 2rem 0;
  border-top: 1px solid var(--c-card-border);
}

.article-related-section h2 {
  margin-bottom: 1.25rem;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.related-item {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
  backdrop-filter: blur(6px);
}

.related-item:hover {
  transform: translateY(-3px);
  border-color: rgba(153, 255, 204, 0.4);
}

.related-item > a {
  display: block;
  padding: 1rem 1.1rem;
  min-height: 40px;
}

.related-title {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 0.35rem;
  line-height: 1.4;
}

.related-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* ============================================================
   Feature Layout specifics
   ============================================================ */
.feature-more-section {
  padding: 2rem 0;
  border-top: 1px solid var(--c-card-border);
}

.feature-more-section h2 {
  margin-bottom: 1.25rem;
}

.feature-card-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.feature-mini-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  backdrop-filter: blur(6px);
  transition: transform var(--transition), border-color var(--transition);
}

.feature-mini-card:hover {
  transform: translateY(-3px);
  border-color: rgba(153,255,204,0.4);
}

.feature-mini-card h3 {
  font-size: 0.95rem;
}

.feature-mini-card p {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  margin-bottom: 0;
}

/* ============================================================
   FAQ Layout
   ============================================================ */
.faq-header-section {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--c-card-border);
  margin-bottom: 2rem;
}

.faq-body-section {
  padding: 0 0 2rem;
}

.faq-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.faq-content h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.faq-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--c-primary);
}

.faq-content p { margin-bottom: 1rem; }

.faq-content strong {
  color: var(--c-primary);
}

.faq-content a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-guides-section {
  padding: 2rem 0;
  border-top: 1px solid var(--c-card-border);
}

.faq-guides-section h2 {
  margin-bottom: 1.25rem;
}

.faq-guide-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-guide-item {
  border-bottom: 1px solid var(--c-card-border);
}

.faq-guide-item:first-child {
  border-top: 1px solid var(--c-card-border);
}

.faq-guide-item > a {
  display: flex;
  align-items: center;
  padding: 0.85rem 0.6rem;
  min-height: 48px;
  color: var(--c-text);
  transition: color var(--transition), padding-left var(--transition);
}

.faq-guide-item > a:hover {
  color: var(--c-primary);
  padding-left: 1rem;
}

.faq-guide-title {
  font-size: 0.92rem;
  font-weight: 500;
}

/* ============================================================
   About Layout
   ============================================================ */
.about-header-section {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--c-card-border);
  margin-bottom: 2rem;
}

.about-header-text {
  flex: 1;
}

.about-brand-emblem {
  flex-shrink: 0;
}

.about-body-section {
  padding: 0 0 2rem;
}

.about-links-section {
  padding: 2rem 0;
  border-top: 1px solid var(--c-card-border);
}

.about-links-section h2 {
  margin-bottom: 1.25rem;
}

.about-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.about-link-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  backdrop-filter: blur(6px);
  transition: transform var(--transition), border-color var(--transition);
}

.about-link-card:hover {
  transform: translateY(-3px);
  border-color: rgba(153,255,204,0.4);
}

.about-link-card h3 {
  font-size: 0.95rem;
}

.about-link-card p {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  margin-bottom: 0;
}

/* ============================================================
   Privacy Layout
   ============================================================ */
.privacy-header-section {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--c-card-border);
  margin-bottom: 2rem;
}

.privacy-body-section {
  padding: 0 0 2rem;
}

.privacy-body {
  max-width: 720px;
}

.privacy-nav-section {
  padding: 2rem 0;
  border-top: 1px solid var(--c-card-border);
}

.privacy-nav-section h2 {
  margin-bottom: 1.25rem;
}

.privacy-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.privacy-nav-item {
  border-bottom: 1px solid var(--c-card-border);
}

.privacy-nav-item:first-child {
  border-top: 1px solid var(--c-card-border);
}

.privacy-nav-item > a {
  display: flex;
  align-items: center;
  padding: 0.85rem 0.6rem;
  min-height: 48px;
  color: var(--c-text);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition), padding-left var(--transition);
}

.privacy-nav-item > a:hover {
  color: var(--c-primary);
  padding-left: 1rem;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 4rem;
  border-top: 1px solid var(--c-card-border);
}

.footer-cta-section {
  background: linear-gradient(135deg, rgba(0,255,65,0.08), rgba(153,255,204,0.06));
  border-bottom: 1px solid var(--c-card-border);
  padding: 3rem 1.5rem;
}

.footer-cta-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.footer-cta-text {
  font-size: 1.2rem;
  color: var(--c-text);
  font-family: var(--font-head);
  margin: 0;
}

.footer-cta-text strong {
  color: var(--c-primary);
}

.footer-main-section {
  max-width: 1320px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-brand-col .brand-name {
  font-size: 1.2rem;
  color: var(--c-primary);
}

.footer-brand-col p {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.7;
  margin: 0;
}

.footer-links-col h4 {
  font-size: 0.88rem;
  color: var(--c-primary);
  margin-bottom: 0.85rem;
  font-family: var(--font-head);
  letter-spacing: 0.04em;
}

.footer-links-col > ol {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.footer-links-col > ol > li > a {
  display: block;
  padding: 0.35rem 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  font-size: 0.82rem;
  color: var(--c-text-muted);
  transition: color var(--transition);
}

.footer-links-col > ol > li > a:hover {
  color: var(--c-primary);
}

.footer-copy-section {
  border-top: 1px solid var(--c-card-border);
  padding: 1.25rem 1.5rem;
  text-align: center;
}

.footer-copy-section p {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  margin: 0;
}

/* ============================================================
   Scroll Reveal Animation
   ============================================================ */
@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cell-card,
.related-item,
.feature-mini-card,
.about-link-card,
.faq-guide-item,
.privacy-nav-item {
  animation: reveal-up 0.5s ease both;
}

.cell-grid .cell-card:nth-child(1) { animation-delay: 0.05s; }
.cell-grid .cell-card:nth-child(2) { animation-delay: 0.1s; }
.cell-grid .cell-card:nth-child(3) { animation-delay: 0.15s; }
.cell-grid .cell-card:nth-child(4) { animation-delay: 0.2s; }
.cell-grid .cell-card:nth-child(5) { animation-delay: 0.25s; }
.cell-grid .cell-card:nth-child(6) { animation-delay: 0.3s; }

/* ============================================================
   h2 > span / h3 > span decoration
   ============================================================ */
h2 > span,
h3 > span {
  position: relative;
  display: inline;
}

h2 > span::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), transparent);
  border-radius: 2px;
  opacity: 0.5;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .home-main,
  .inner-main {
    grid-template-columns: 1fr;
  }

  .home-aside,
  .inner-aside {
    position: static;
    padding-top: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
  }

  .footer-main-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hero-section {
    flex-direction: column-reverse;
    min-height: auto;
    padding: 2rem 0 1.5rem;
    gap: 2rem;
  }

  .hero-visual {
    width: 100%;
    align-items: center;
  }

  .bio-orb {
    width: 150px;
    height: 150px;
  }

  .hero-text {
    align-items: flex-start;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(0, 20, 50, 0.98);
    border-bottom: 1px solid var(--c-card-border);
    padding: 1rem;
    backdrop-filter: blur(12px);
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav > ol {
    flex-direction: column;
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .main-nav > ol > li > a {
    font-size: 0.9rem;
    padding: 0.65rem 0.85rem;
  }

  .nav-toggle {
    display: flex;
  }

  .header-inner {
    position: relative;
  }

  .about-header-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .home-aside,
  .inner-aside {
    grid-template-columns: 1fr;
  }

  .footer-cta-section {
    padding: 2rem 1.25rem;
  }

  .cell-grid {
    grid-template-columns: 1fr;
  }

  .related-list,
  .feature-card-row,
  .about-links-grid {
    grid-template-columns: 1fr;
  }

  .footer-main-section {
    padding: 2rem 1.25rem;
  }

  .inner-main {
    padding: 1.25rem 1rem;
  }

  .home-main {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .brand-name {
    font-size: 0.9rem;
  }

  .article-lead {
    font-size: 0.95rem;
  }

  .footer-cta-text {
    font-size: 1rem;
  }
}

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