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

/* ===== 变量 ===== */
:root {
  --c-bg: #0d0d0d;
  --c-surface: #111118;
  --c-surface2: #18181f;
  --c-purple: #8000ff;
  --c-magenta: #ff00ff;
  --c-purple-dim: rgba(128, 0, 255, 0.18);
  --c-magenta-dim: rgba(255, 0, 255, 0.14);
  --c-purple-mid: rgba(128, 0, 255, 0.5);
  --c-magenta-mid: rgba(255, 0, 255, 0.5);
  --c-text: #e8e8f0;
  --c-text-dim: #9090a8;
  --c-border: rgba(128, 0, 255, 0.3);
  --c-border-bright: rgba(255, 0, 255, 0.5);
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  --radius-card: 28px;
  --radius-sm: 8px;
  --nav-height: 48px;
  --header-total: 140px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-total);
  font-size: 16px;
  background: var(--c-bg);
  color: var(--c-text);
}
body {
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--c-bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }

/* ===== 扫描线 + 噪点 ===== */
.scanlines {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  mix-blend-mode: overlay;
}
.noise {
  position: fixed; inset: 0; z-index: 9998;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ===== 全局动效 ===== */
@keyframes neon-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
@keyframes glitch-skew {
  0% { transform: skewX(0deg); }
  2% { transform: skewX(-4deg); }
  4% { transform: skewX(0deg); }
  96% { transform: skewX(0deg); }
  98% { transform: skewX(3deg); }
  100% { transform: skewX(0deg); }
}
@keyframes glitch-shift {
  0%, 100% { clip-path: inset(0 0 100% 0); transform: translateX(0); }
  10% { clip-path: inset(10% 0 60% 0); transform: translateX(-4px); }
  20% { clip-path: inset(30% 0 40% 0); transform: translateX(4px); }
  30% { clip-path: inset(50% 0 20% 0); transform: translateX(-2px); }
  40% { clip-path: inset(70% 0 5% 0); transform: translateX(3px); }
  50%, 100% { clip-path: inset(0 0 100% 0); }
}
@keyframes stagger-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scan-sweep {
  0% { top: -10%; }
  100% { top: 110%; }
}
@keyframes border-glow {
  0%, 100% { border-color: var(--c-border); box-shadow: 0 0 8px var(--c-purple-dim); }
  50% { border-color: var(--c-border-bright); box-shadow: 0 0 20px var(--c-magenta-dim); }
}

/* ===== 公告条 ===== */
.announce-bar {
  background: linear-gradient(90deg, var(--c-purple), var(--c-magenta));
  text-align: center;
  padding: 6px 16px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: #fff;
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
}
.announce-bar::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(255,255,255,0.05) 40px, rgba(255,255,255,0.05) 41px);
}

/* ===== 品牌行 ===== */
.brand-row {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 14px 0;
}
.brand-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-img { width: 48px; height: 48px; border-radius: 8px; }
.brand-name {
  font-family: var(--font-heading);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 0 20px var(--c-purple), 0 0 40px var(--c-purple-mid);
  animation: glitch-skew 8s infinite;
  letter-spacing: 0.02em;
}
.brand-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-magenta);
  border: 1px solid var(--c-magenta);
  padding: 2px 7px;
  border-radius: 4px;
  text-shadow: 0 0 8px var(--c-magenta);
  box-shadow: 0 0 8px var(--c-magenta-dim);
  letter-spacing: 0.1em;
  align-self: flex-start;
  margin-top: 4px;
}
.brand-tagline {
  font-size: 13px;
  color: var(--c-text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  margin-left: auto;
}

/* ===== 导航行 ===== */
.nav-row {
  background: rgba(13, 13, 13, 0.97);
  border-bottom: 2px solid var(--c-purple);
  box-shadow: 0 2px 20px var(--c-purple-dim);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-inner::-webkit-scrollbar { display: none; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
  padding: 14px 16px;
  min-height: 48px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition), text-shadow var(--transition);
  letter-spacing: 0.04em;
  animation: stagger-in 0.4s ease both;
  animation-delay: calc(var(--i, 0) * 0.06s);
}
.nav-link:hover, .nav-link:focus-visible {
  color: var(--c-magenta);
  border-bottom-color: var(--c-magenta);
  text-shadow: 0 0 10px var(--c-magenta);
  outline: none;
}

/* ===== 头部整体 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
}

/* ===== Hero ===== */
.hero-section {
  min-height: 70vh;
  display: flex;
  align-items: center;
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
  padding: 80px 0 60px;
}
.hero-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 70% 50%, rgba(128, 0, 255, 0.12) 0%, transparent 70%),
              radial-gradient(ellipse 40% 60% at 30% 70%, rgba(255, 0, 255, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}
.hero-content { position: relative; z-index: 2; }
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.eyebrow-line {
  display: block;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-purple), var(--c-magenta));
  box-shadow: 0 0 8px var(--c-magenta);
}
.eyebrow-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-magenta);
  text-shadow: 0 0 10px var(--c-magenta);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-h1 {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
  text-shadow: 0 0 30px var(--c-purple), 0 0 60px var(--c-purple-mid);
  margin-bottom: 20px;
  position: relative;
}
.hero-h1::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  color: var(--c-magenta);
  opacity: 0;
  animation: glitch-shift 6s infinite 2s;
  pointer-events: none;
}
.hero-sub {
  font-size: 17px;
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 36px;
}
.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-purple), var(--c-magenta));
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  padding: 14px 28px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.06em;
  box-shadow: 0 0 20px var(--c-purple-dim), 0 0 40px var(--c-magenta-dim);
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition);
}
.btn-primary:hover { box-shadow: 0 0 30px var(--c-purple-mid), 0 0 60px var(--c-magenta-mid); transform: translateY(-2px); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary--lg { font-size: 16px; padding: 18px 40px; min-height: 56px; border-radius: 10px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--c-magenta);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  padding: 13px 28px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-magenta);
  letter-spacing: 0.06em;
  text-shadow: 0 0 8px var(--c-magenta);
  box-shadow: 0 0 10px var(--c-magenta-dim);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-ghost:hover {
  background: var(--c-magenta-dim);
  box-shadow: 0 0 20px var(--c-magenta-mid);
  transform: translateY(-2px);
}

/* ===== Hero 视觉拼贴 ===== */
.hero-visual {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-frame {
  position: absolute;
  width: 180px;
  height: 220px;
  border-radius: 20px;
  overflow: hidden;
  border: 2px solid var(--c-border);
  animation: border-glow 3s infinite;
  background: var(--c-surface2);
}
.hero-frame--a {
  top: 20px; left: 20px;
  transform: rotate(-4deg);
  border-color: var(--c-purple);
  box-shadow: 0 0 30px var(--c-purple-dim), inset 0 0 20px rgba(128,0,255,0.08);
  z-index: 2;
}
.hero-frame--b {
  bottom: 20px; right: 20px;
  transform: rotate(5deg);
  border-color: var(--c-magenta);
  box-shadow: 0 0 30px var(--c-magenta-dim), inset 0 0 20px rgba(255,0,255,0.08);
  z-index: 3;
}
.frame-inner {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  position: relative;
  overflow: hidden;
}
.frame-glyph {
  font-family: var(--font-heading);
  font-size: 80px;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-purple), var(--c-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.9;
}
.frame-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-text-dim);
  letter-spacing: 0.15em;
}
.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-magenta), transparent);
  opacity: 0.6;
  animation: scan-sweep 3s linear infinite;
}
.hero-frame--a .scan-line { background: linear-gradient(90deg, transparent, var(--c-purple), transparent); }
.hero-diagonal {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 45%, rgba(128,0,255,0.06) 45%, rgba(255,0,255,0.06) 55%, transparent 55%);
  pointer-events: none;
  z-index: 1;
}

/* ===== 主内容区域 ===== */
.content-section {
  padding: 60px 0 80px;
  background: var(--c-bg);
}
.content-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

/* ===== HUD 显示 ===== */
.content-figure {
  margin-bottom: 36px;
  border-radius: var(--radius-card);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  padding: 24px;
  box-shadow: 0 0 20px var(--c-purple-dim);
  animation: border-glow 4s infinite 1s;
}
.hud-display { display: flex; flex-direction: column; gap: 10px; }
.hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(128, 0, 255, 0.15);
}
.hud-row:last-child { border-bottom: none; }
.hud-key { color: var(--c-text-dim); }
.hud-val { color: var(--c-text); }
.hud-val--active {
  color: var(--c-magenta);
  text-shadow: 0 0 8px var(--c-magenta);
  animation: neon-pulse 2s infinite;
}

/* ===== 页面正文内容 ===== */
.page-content-wrapper {
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.75;
}
.page-content-wrapper section {
  margin-bottom: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(128, 0, 255, 0.15);
  scroll-margin-top: calc(var(--header-total) + 20px);
}
.page-content-wrapper section:last-child { border-bottom: none; }
.page-content-wrapper h2 {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 0 20px var(--c-purple-mid);
  margin-bottom: 20px;
  line-height: 1.3;
  position: relative;
  padding-left: 20px;
}
.page-content-wrapper h2::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 4px;
  background: linear-gradient(180deg, var(--c-purple), var(--c-magenta));
  border-radius: 2px;
  box-shadow: 0 0 8px var(--c-magenta);
}
.page-content-wrapper h3 {
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 600;
  color: var(--c-magenta);
  text-shadow: 0 0 12px var(--c-magenta-dim);
  margin: 28px 0 14px;
}
.page-content-wrapper p {
  margin-bottom: 16px;
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.75;
}
.page-content-wrapper ul, .page-content-wrapper ol {
  margin: 0 0 20px 0;
  padding-left: 24px;
  list-style: none;
}
.page-content-wrapper ul > li, .page-content-wrapper ol > li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--c-text);
  line-height: 1.7;
}
.page-content-wrapper ul > li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--c-purple);
  font-size: 10px;
  top: 5px;
}
.page-content-wrapper ol { counter-reset: ol-counter; }
.page-content-wrapper ol > li { counter-increment: ol-counter; }
.page-content-wrapper ol > li::before {
  content: counter(ol-counter) '.';
  position: absolute;
  left: 0;
  color: var(--c-magenta);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}
.page-content-wrapper strong {
  color: #fff;
  font-weight: 600;
}
.page-content-wrapper em {
  color: var(--c-magenta);
  font-style: normal;
}
.page-content-wrapper a {
  color: var(--c-magenta);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: text-shadow var(--transition);
}
.page-content-wrapper a:hover {
  text-shadow: 0 0 8px var(--c-magenta);
}
.page-content-wrapper blockquote {
  border-left: 3px solid var(--c-purple);
  margin: 24px 0;
  padding: 16px 24px;
  background: var(--c-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--c-text-dim);
  box-shadow: inset 0 0 20px var(--c-purple-dim);
}
.page-content-wrapper table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}
.page-content-wrapper th, .page-content-wrapper td {
  padding: 12px 16px;
  border: 1px solid var(--c-border);
  text-align: left;
}
.page-content-wrapper th {
  background: var(--c-surface2);
  color: var(--c-magenta);
  font-family: var(--font-mono);
  font-size: 13px;
}
.page-content-wrapper td { background: var(--c-surface); }
.page-content-wrapper figure { margin: 24px 0; }
.page-content-wrapper aside {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin: 28px 0;
  box-shadow: 0 0 16px var(--c-purple-dim);
}
.page-content-wrapper details {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  margin-bottom: 12px;
}
.page-content-wrapper summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--c-magenta);
  padding: 4px 0;
  font-family: var(--font-mono);
}

/* ===== 侧边栏 ===== */
.content-aside {
  position: sticky;
  top: calc(var(--header-total) + 20px);
}
.aside-inner {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: 0 0 24px var(--c-purple-dim);
  animation: border-glow 5s infinite 2s;
}
.aside-title {
  font-family: var(--font-heading);
  font-size: 18px;
  color: #fff;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}
.aside-title span {
  background: linear-gradient(90deg, var(--c-purple), var(--c-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.aside-nav { display: flex; flex-direction: column; gap: 4px; margin-bottom: 24px; }
.aside-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
  transition: color var(--transition), background var(--transition);
  min-height: 40px;
}
.aside-link:hover {
  color: var(--c-magenta);
  background: var(--c-magenta-dim);
}
.aside-link-arrow {
  color: var(--c-purple);
  font-size: 10px;
  transition: transform var(--transition), color var(--transition);
}
.aside-link:hover .aside-link-arrow {
  transform: translateX(3px);
  color: var(--c-magenta);
}
.aside-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--c-purple-dim);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-dim);
}
.badge-icon {
  color: var(--c-magenta);
  text-shadow: 0 0 8px var(--c-magenta);
  animation: neon-pulse 2s infinite;
}

/* ===== 页脚 CTA ===== */
.footer-cta-block {
  background: linear-gradient(135deg, #10001f 0%, #0d0d1a 50%, #1a0010 100%);
  border-top: 2px solid var(--c-purple);
  border-bottom: 1px solid var(--c-border);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.footer-cta-block::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(128, 0, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
.footer-cta-inner { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }
.footer-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 0 30px var(--c-purple-mid);
  margin-bottom: 16px;
}
.footer-cta-title span {
  background: linear-gradient(90deg, var(--c-purple), var(--c-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-cta-sub {
  font-size: 17px;
  color: var(--c-text-dim);
  margin-bottom: 36px;
  line-height: 1.7;
}

/* ===== 页脚主区 ===== */
.footer-main {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 40px 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer-nav .footer-dl { }
.footer-dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-magenta);
  text-shadow: 0 0 8px var(--c-magenta);
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
}
.footer-dd { margin-bottom: 6px; }
.footer-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
  transition: color var(--transition), text-shadow var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 4px 0;
}
.footer-link:hover {
  color: var(--c-magenta);
  text-shadow: 0 0 8px var(--c-magenta);
}
.footer-address {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.address-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-magenta);
  letter-spacing: 0.1em;
  text-shadow: 0 0 8px var(--c-magenta);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 6px;
}
.footer-contact {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
  transition: color var(--transition);
}
.footer-contact:hover { color: var(--c-magenta); }
.address-note {
  font-size: 12px;
  color: rgba(144, 144, 168, 0.6);
  line-height: 1.5;
}
.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-links-list li a {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
  transition: color var(--transition);
  padding: 4px 0;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.footer-links-list li a:hover { color: var(--c-purple); }

/* ===== 页脚底栏 ===== */
.footer-bottom {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding: 20px 24px;
  text-align: center;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
}

/* ===== scroll margin for sections ===== */
article[id] { scroll-margin-top: calc(var(--header-total) + 16px); }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { height: 280px; }
  .hero-frame { width: 130px; height: 160px; }
  .frame-glyph { font-size: 56px; }
  .content-layout {
    grid-template-columns: 1fr;
  }
  .content-aside {
    position: static;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  :root { --header-total: 160px; }
  .brand-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .brand-tagline { margin-left: 0; }
  .hero-section { padding: 48px 0 40px; min-height: auto; }
  .hero-inner { padding: 0 16px; gap: 32px; }
  .hero-visual { display: none; }
  .hero-cta-group { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .nav-inner { padding: 0 12px; }
  .nav-link { padding: 12px 10px; font-size: 12px; }
  .content-section { padding: 40px 0 60px; }
  .content-layout { padding: 0 16px; }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 16px;
  }
  .footer-cta-block { padding: 48px 16px; }
  .footer-bottom { padding: 16px; }
  .page-content-wrapper h2 { font-size: 20px; }
  .page-content-wrapper article { margin-bottom: 48px; }
}

/* ===== 无障碍 / 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ===== 焦点样式 ===== */
:focus-visible {
  outline: 2px solid var(--c-magenta);
  outline-offset: 3px;
  border-radius: 3px;
}