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

/* ============================================================
   CSS 自定义属性
   ============================================================ */
:root {
  --c-red: #ff0000;
  --c-pink: #ff006e;
  --c-dark: #1a1a2e;
  --c-dark2: #0d0d1f;
  --c-dark3: #12122a;
  --c-cyan: #00ffff;
  --c-white: #f0f0ff;
  --c-muted: #8888aa;
  --c-glass: rgba(255,255,255,0.04);
  --c-glass-border: rgba(255,0,110,0.25);
  --glow-red: 0 0 8px #ff0000, 0 0 20px rgba(255,0,0,0.4);
  --glow-pink: 0 0 8px #ff006e, 0 0 24px rgba(255,0,110,0.5);
  --glow-cyan: 0 0 8px #00ffff, 0 0 20px rgba(0,255,255,0.3);
  --font-main: 'Space Grotesk', 'Courier New', monospace;
  --nav-h: 64px;
  --anchor-h: 44px;
  --radius-card: 18px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--c-dark2);
  color: var(--c-white);
}

body {
  font-family: var(--font-main);
  line-height: 1.65;
  min-height: 100vh;
  background: var(--c-dark2);
  overflow-x: hidden;
  position: relative;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

section { scroll-margin-top: calc(var(--nav-h) + var(--anchor-h) + 8px); }

/* ============================================================
   扫描线 & 噪点叠加
   ============================================================ */
.scanlines {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.18) 3px,
    rgba(0,0,0,0.18) 4px
  );
  animation: scanline-scroll 8s linear infinite;
}

@keyframes scanline-scroll {
  0% { background-position: 0 0; }
  100% { background-position: 0 200px; }
}

.noise-grid {
  pointer-events: none;
  position: fixed; inset: 0; z-index: 9998;
  background-image:
    linear-gradient(rgba(255,0,110,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,0,110,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ============================================================
   顶部 Header
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(13,13,31,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-glass-border);
  box-shadow: 0 2px 20px rgba(255,0,110,0.15);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

/* 品牌 Logo */
.brand-link {
  display: flex; align-items: center; flex-shrink: 0;
  text-decoration: none;
}

.brand-icon { width: 40px; height: 40px; object-fit: contain; }

.brand-text-icon {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--c-red), var(--c-pink));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  border-radius: 6px;
  box-shadow: var(--glow-pink);
}

/* Header aside > nav > ul > li > a 结构 */
.header-nav-aside {
  flex: 1;
  display: flex;
  align-items: center;
}

.header-nav { width: 100%; }

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

.nav-link {
  display: flex; align-items: center;
  height: 40px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  border: 1px solid transparent;
  border-radius: 4px;
  transition: color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--c-pink);
  border-color: var(--c-pink);
  box-shadow: var(--glow-pink);
  outline: none;
}

/* 搜索框 */
.header-search { flex-shrink: 0; }

.search-form {
  display: flex; align-items: center;
  border: 1px solid var(--c-glass-border);
  border-radius: 4px;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form:focus-within {
  border-color: var(--c-pink);
  box-shadow: var(--glow-pink);
}

.search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--c-white);
  font-family: var(--font-main);
  font-size: 13px;
  padding: 8px 12px;
  width: 160px;
}

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

.search-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  color: var(--c-muted);
  transition: color var(--transition);
}

.search-btn:hover { color: var(--c-pink); }

/* 汉堡按钮（移动） */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border: 1px solid var(--c-glass-border);
  border-radius: 4px;
  flex-shrink: 0;
}

.toggle-bar {
  display: block;
  width: 20px; height: 2px;
  background: var(--c-pink);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   二级粘性锚点条
   ============================================================ */
.sticky-anchor-bar {
  position: sticky;
  top: var(--nav-h);
  z-index: 990;
  height: var(--anchor-h);
  background: rgba(10,10,25,0.95);
  border-bottom: 1px solid rgba(255,0,0,0.2);
  backdrop-filter: blur(8px);
  overflow-x: auto;
  scrollbar-width: none;
}

.sticky-anchor-bar::-webkit-scrollbar { display: none; }

.anchor-bar-inner {
  display: flex;
  align-items: center;
  gap: 0;
  height: 100%;
  padding: 0 24px;
  max-width: 1400px;
  margin: 0 auto;
  white-space: nowrap;
}

.anchor-link {
  display: flex; align-items: center;
  height: 100%;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  border-right: 1px solid rgba(255,0,110,0.1);
  transition: color var(--transition), background var(--transition);
  min-width: 40px;
}

.anchor-link:first-child { border-left: 1px solid rgba(255,0,110,0.1); }

.anchor-link:hover {
  color: var(--c-red);
  background: rgba(255,0,0,0.06);
}

/* ============================================================
   Hero 区块
   ============================================================ */
.hero-section {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-dark2) 0%, #0f0f28 50%, #1a0a1e 100%);
  padding-top: calc(var(--nav-h) + var(--anchor-h));
  margin-top: calc(-1 * (var(--nav-h) + var(--anchor-h)));
}

.hero-section::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 30% 50%, rgba(255,0,110,0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Hero Figure (左) */
.hero-figure {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  padding: 60px 40px;
  min-height: 500px;
}

.hero-img {
  width: 100%; max-width: 520px;
  border-radius: var(--radius-card);
  border: 1px solid var(--c-glass-border);
  box-shadow: 0 0 40px rgba(255,0,110,0.2), 0 0 80px rgba(255,0,0,0.1);
  object-fit: cover;
}

.hero-img-placeholder {
  width: 100%; max-width: 480px;
  aspect-ratio: 4/3;
  border-radius: var(--radius-card);
  border: 1px solid var(--c-glass-border);
  background: var(--c-dark3);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(255,0,110,0.15);
}

.placeholder-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,0,110,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,0,110,0.08) 1px, transparent 1px);
  background-size: 30px 30px;
}

.pixel-deco {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 120px; height: 120px;
  background: linear-gradient(135deg, var(--c-red), var(--c-pink));
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  opacity: 0.6;
  animation: pulse-deco 3s ease-in-out infinite;
}

@keyframes pulse-deco {
  0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%,-50%) scale(1.15); opacity: 0.9; }
}

.hero-badge {
  position: absolute;
  top: 40px; right: 40px;
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  background: rgba(255,0,110,0.15);
  border: 1px solid var(--c-pink);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-pink);
  box-shadow: var(--glow-pink);
  animation: badge-glow 2s ease-in-out infinite alternate;
}

@keyframes badge-glow {
  from { box-shadow: var(--glow-pink); }
  to { box-shadow: 0 0 14px #ff006e, 0 0 40px rgba(255,0,110,0.6); }
}

.badge-dot {
  width: 6px; height: 6px;
  background: var(--c-pink);
  border-radius: 50%;
  animation: blink 1.2s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Hero Content (右, 右对齐) */
.hero-content {
  padding: 60px 60px 60px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  position: relative; z-index: 1;
}

.hero-eyebrow {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px;
  flex-direction: row-reverse;
}

.eyebrow-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--c-red);
  border: 1px solid var(--c-red);
  padding: 3px 10px;
  border-radius: 2px;
}

.eyebrow-line {
  display: block;
  width: 40px; height: 1px;
  background: linear-gradient(to left, var(--c-red), transparent);
}

/* Glitch H1 */
.hero-h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--c-white);
  text-shadow: var(--glow-red);
  margin-bottom: 24px;
  position: relative;
  animation: glitch-main 6s infinite;
}

.hero-h1::before,
.hero-h1::after {
  content: attr(data-text);
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
}

.hero-h1::before {
  color: var(--c-cyan);
  animation: glitch-before 6s infinite;
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
  opacity: 0;
}

.hero-h1::after {
  color: var(--c-pink);
  animation: glitch-after 6s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
  opacity: 0;
}

@keyframes glitch-main {
  0%, 90%, 100% { transform: none; }
  92% { transform: skewX(-2deg); }
  94% { transform: skewX(2deg); }
}

@keyframes glitch-before {
  0%, 89%, 100% { opacity: 0; transform: none; }
  90% { opacity: 0.7; transform: translate(-3px, 1px); }
  91% { opacity: 0; }
}

@keyframes glitch-after {
  0%, 91%, 100% { opacity: 0; transform: none; }
  92% { opacity: 0.7; transform: translate(3px, -1px); }
  93% { opacity: 0; }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--c-muted);
  max-width: 420px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex; gap: 14px; flex-wrap: wrap;
  justify-content: flex-end;
  margin-bottom: 40px;
}

.cta-btn {
  display: inline-flex; align-items: center;
  height: 48px;
  padding: 0 28px;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 4px;
  transition: all var(--transition);
}

.cta-primary {
  background: linear-gradient(135deg, var(--c-red), var(--c-pink));
  color: #fff;
  box-shadow: var(--glow-pink);
}

.cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 16px #ff006e, 0 0 40px rgba(255,0,110,0.6);
}

.cta-ghost {
  background: transparent;
  color: var(--c-pink);
  border: 1px solid var(--c-pink);
}

.cta-ghost:hover {
  background: rgba(255,0,110,0.1);
  box-shadow: var(--glow-pink);
}

.hero-stats {
  display: flex; gap: 32px;
}

.stat-item {
  display: flex; flex-direction: column; align-items: flex-end; gap: 2px;
}

.stat-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-red);
  text-shadow: var(--glow-red);
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

/* ============================================================
   正文区块（侧边栏 + 内容）
   ============================================================ */
.content-body-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}

/* 侧边栏 aside（内容右侧，用 order 实现） */
.content-sidebar {
  order: 2;
  position: sticky;
  top: calc(var(--nav-h) + var(--anchor-h) + 20px);
}

.content-main-body {
  order: 1;
}

.sidebar-inner {
  background: var(--c-glass);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-card);
  padding: 24px;
  backdrop-filter: blur(8px);
}

.sidebar-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--c-red);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,0,0,0.2);
}

.sidebar-nav-list { display: flex; flex-direction: column; gap: 4px; }

.sidebar-nav-link {
  display: flex; align-items: center;
  min-height: 40px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--c-muted);
  border-radius: 6px;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.sidebar-nav-link:hover {
  color: var(--c-pink);
  background: rgba(255,0,110,0.06);
  border-left-color: var(--c-pink);
}

.sidebar-deco {
  margin-top: 20px;
  height: 2px;
  background: linear-gradient(to right, var(--c-red), var(--c-pink), transparent);
  border-radius: 2px;
}

/* ============================================================
   page.content 内部样式（S3 生成的7个section）
   ============================================================ */
.content-main-body h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-white);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-red);
  position: relative;
}

.content-main-body h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 60px; height: 2px;
  background: var(--c-pink);
  box-shadow: var(--glow-pink);
}

.content-main-body .subtitle,
.content-main-body .subhead,
.content-main-body .desc,
.content-main-body .lead {
  color: var(--c-muted);
  font-size: 1rem;
  margin-bottom: 20px;
}

.content-main-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--c-pink);
  margin: 24px 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.content-main-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-white);
  margin-bottom: 16px;
  opacity: 0.9;
}

.content-main-body ul,
.content-main-body ol {
  padding-left: 20px;
  margin-bottom: 16px;
}

.content-main-body li {
  margin-bottom: 8px;
  line-height: 1.65;
  color: rgba(240,240,255,0.85);
}

.content-main-body a {
  color: var(--c-pink);
  text-decoration: underline;
  text-decoration-color: rgba(255,0,110,0.4);
  transition: text-shadow var(--transition);
}

.content-main-body a:hover {
  text-shadow: var(--glow-pink);
}

.content-main-body section {
  margin-bottom: 72px;
  padding: 40px;
  background: var(--c-glass);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(6px);
  position: relative;
  overflow: hidden;
}

.content-main-body section::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(to bottom, var(--c-red), var(--c-pink));
  border-radius: 4px 0 0 4px;
}

/* figure/aside 在 section 内 */
.content-main-body section figure {
  margin: 20px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--c-glass-border);
}

.content-main-body section aside {
  background: rgba(255,0,110,0.05);
  border: 1px solid rgba(255,0,110,0.2);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 0.9rem;
  color: var(--c-muted);
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--c-dark3);
  border-top: 1px solid rgba(255,0,0,0.2);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--c-red), var(--c-pink), transparent);
}

/* 联系/订阅表单块 */
.footer-form-block {
  background: linear-gradient(135deg, rgba(255,0,0,0.06), rgba(255,0,110,0.06));
  border-bottom: 1px solid var(--c-glass-border);
  padding: 48px 24px;
}

.footer-form-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.footer-form-title {
  font-size: 1.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-white);
  margin-bottom: 8px;
}

.footer-form-sub {
  color: var(--c-muted);
  margin-bottom: 20px;
}

.footer-contact-email {
  display: inline-block;
  padding: 10px 24px;
  border: 1px solid var(--c-pink);
  border-radius: 4px;
  color: var(--c-pink);
  font-size: 14px;
  transition: all var(--transition);
}

.footer-contact-email:hover {
  background: rgba(255,0,110,0.1);
  box-shadow: var(--glow-pink);
}

/* 页脚主体：三列 dl */
.footer-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

.footer-col { }

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-red);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,0,0,0.2);
}

.footer-col dt { /* == .footer-col-title */ }
.footer-col dd {
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-brand-desc {
  line-height: 1.7;
  max-width: 280px;
}

.footer-logo-wrap { margin-top: 16px; }
.footer-logo { width: 48px; height: 48px; object-fit: contain; }

.footer-brand-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--c-red), var(--c-pink));
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  border-radius: 8px;
  box-shadow: var(--glow-pink);
}

.footer-link {
  display: flex; align-items: center;
  min-height: 36px;
  font-size: 14px;
  color: var(--c-muted);
  transition: color var(--transition);
  padding: 2px 0;
}

.footer-link:hover { color: var(--c-pink); }

.footer-topic, .footer-host {
  font-size: 13px;
  color: rgba(136,136,170,0.7);
}

/* 版权行 */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 24px;
  text-align: center;
}

.footer-copy {
  font-size: 13px;
  color: rgba(136,136,170,0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================
   Stagger 动画
   ============================================================ */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-main-body section {
  animation: fade-in-up 0.6s ease both;
}

.content-main-body section:nth-child(1) { animation-delay: 0.05s; }
.content-main-body section:nth-child(2) { animation-delay: 0.12s; }
.content-main-body section:nth-child(3) { animation-delay: 0.19s; }
.content-main-body section:nth-child(4) { animation-delay: 0.26s; }
.content-main-body section:nth-child(5) { animation-delay: 0.33s; }
.content-main-body section:nth-child(6) { animation-delay: 0.40s; }
.content-main-body section:nth-child(7) { animation-delay: 0.47s; }

/* ============================================================
   prefers-reduced-motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ============================================================
   响应式 — 平板
   ============================================================ */
@media (max-width: 1024px) {
  .header-nav-list { gap: 2px; }
  .nav-link { padding: 0 10px; font-size: 12px; }
  .search-input { width: 120px; }

  .hero-section { grid-template-columns: 1fr; min-height: auto; padding-top: 40px; }
  .hero-figure { padding: 40px 24px 0; min-height: 300px; }
  .hero-content { padding: 32px 24px 60px; align-items: center; text-align: center; }
  .hero-eyebrow { flex-direction: row; justify-content: center; }
  .hero-desc { text-align: center; }
  .hero-cta-group { justify-content: center; }
  .hero-stats { justify-content: center; }
  .stat-item { align-items: center; }

  .content-body-section { grid-template-columns: 1fr; }
  .content-sidebar { order: -1; position: static; }
  .sidebar-nav-list { flex-direction: row; flex-wrap: wrap; }

  .footer-main { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   响应式 — 移动端
   ============================================================ */
@media (max-width: 768px) {
  :root { --nav-h: 56px; }

  .nav-toggle { display: flex; }

  .header-nav-aside {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(13,13,31,0.98);
    border-bottom: 1px solid var(--c-glass-border);
    padding: 20px 24px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
    z-index: 999;
  }

  .header-nav-aside.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .header-nav-list { flex-direction: column; gap: 4px; }
  .nav-link { height: 48px; width: 100%; font-size: 14px; }

  .header-search { display: none; }

  .hero-section { padding-top: 20px; }
  .hero-figure { padding: 24px 16px 0; }
  .hero-content { padding: 24px 16px 48px; }
  .hero-h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }

  .content-body-section { padding: 40px 16px; }
  .content-main-body section { padding: 24px 20px; margin-bottom: 32px; }

  .footer-form-block { padding: 32px 16px; }
  .footer-main { grid-template-columns: 1fr; padding: 32px 16px; gap: 24px; }

  .anchor-bar-inner { padding: 0 12px; gap: 0; }
  .anchor-link { padding: 0 10px; font-size: 11px; }
}

@media (max-width: 480px) {
  .hero-cta-group { flex-direction: column; width: 100%; }
  .cta-btn { justify-content: center; width: 100%; }
  .hero-stats { gap: 16px; }
}