@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600;700&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

/* ===== 基础变量 ===== */
:root {
  --c-green: #69ff69;
  --c-cyan: #00ffff;
  --c-dark: #172617;
  --c-dark2: #1e3a1e;
  --c-dark3: #0d1a0d;
  --c-mid: #243a24;
  --c-border: rgba(105,255,105,0.25);
  --c-border-cyan: rgba(0,255,255,0.25);
  --c-text: #d4f5d4;
  --c-text-muted: rgba(212,245,212,0.6);
  --c-white: #ffffff;
  --sidenav-w: 240px;
  --hero-h: 100vh;
  --hero-h-inner: 55vh;
  --radius-card: 28px;
  --radius-btn: 8px;
  --transition: 0.25s ease;
  --font-main: 'Lexend', 'Source Sans 3', system-ui, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--c-dark);
  color: var(--c-text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--c-green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-cyan); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ===== 站点骨架 ===== */
.site-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ===== 左侧固定导航 ===== */
.sidenav {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidenav-w);
  height: 100vh;
  background: linear-gradient(180deg, var(--c-dark3) 0%, var(--c-dark2) 100%);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--c-green) transparent;
}

.sidenav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--c-border);
  flex-shrink: 0;
}
.brand-logo {
  width: 32px; height: 32px;
  object-fit: contain;
}
.brand-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-green);
  letter-spacing: 0.02em;
  text-shadow: 0 0 12px rgba(105,255,105,0.5);
  line-height: 1.3;
}
a.brand-name:hover { color: var(--c-cyan); text-shadow: 0 0 12px rgba(0,255,255,0.5); }

.sidenav-links {
  flex: 1;
  padding: 12px 0;
}
.sidenav-links dt.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-text-muted);
  padding: 8px 16px 4px;
  text-transform: uppercase;
}
.sidenav-links dd {
  margin: 0;
}
.sidenav-links dd a {
  display: block;
  padding: 10px 16px;
  font-size: 0.8rem;
  color: var(--c-text);
  border-left: 3px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  line-height: 1.4;
  min-height: 40px;
  display: flex;
  align-items: center;
}
.sidenav-links dd a:hover {
  background: rgba(105,255,105,0.08);
  border-left-color: var(--c-green);
  color: var(--c-green);
}

.sidenav-contact {
  padding: 12px 16px 20px;
  border-top: 1px solid var(--c-border);
  flex-shrink: 0;
}
.contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 40px;
  padding: 10px 12px;
  background: linear-gradient(135deg, rgba(105,255,105,0.15), rgba(0,255,255,0.1));
  border: 1px solid var(--c-border);
  border-radius: var(--radius-btn);
  color: var(--c-green);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
.contact-btn:hover {
  background: linear-gradient(135deg, rgba(105,255,105,0.25), rgba(0,255,255,0.2));
  border-color: var(--c-green);
  color: var(--c-green);
}

/* ===== 页面主体 ===== */
.page-body {
  margin-left: var(--sidenav-w);
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  height: var(--hero-h);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero--service,
.hero--cases,
.hero--faq,
.hero--about,
.hero--contact,
.hero--privacy,
.hero--default {
  height: var(--hero-h-inner);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23,38,23,0.85) 0%, rgba(23,38,23,0.5) 60%, rgba(0,0,0,0.7) 100%);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-dark3) 0%, var(--c-dark2) 50%, #0a2a0a 100%);
  z-index: 0;
}
.hero-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(105,255,105,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 30% 80%, rgba(0,255,255,0.08) 0%, transparent 50%);
}
.hero-gradient--about {
  background: linear-gradient(135deg, var(--c-dark3) 0%, #0a2020 50%, #102010 100%);
}
.hero-gradient--contact {
  background: linear-gradient(135deg, var(--c-dark3) 0%, #1a0a2a 50%, #0a1a1a 100%);
}
.hero-gradient--muted {
  background: linear-gradient(135deg, var(--c-dark3) 0%, var(--c-dark) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 680px;
  padding: 0 56px 80px;
}
.hero-content--right {
  margin-left: auto;
  text-align: right;
}

.hero-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 12px;
  text-shadow: 0 0 10px rgba(0,255,255,0.5);
}
.hero-eyebrow a { color: var(--c-cyan); }
.hero-eyebrow a:hover { color: var(--c-green); }

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-white);
  margin-bottom: 16px;
  text-shadow: 0 0 30px rgba(105,255,105,0.3), 0 2px 4px rgba(0,0,0,0.5);
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 28px;
  max-width: 520px;
  margin-left: auto;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.hero-slant {
  position: absolute;
  bottom: -1px;
  left: 0; right: 0;
  height: 64px;
  z-index: 3;
  background: var(--c-dark);
  clip-path: polygon(0 100%, 100% 100%, 100% 0);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  min-height: 44px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--c-green), #4ae04a);
  color: var(--c-dark);
  border-color: var(--c-green);
  box-shadow: 0 0 20px rgba(105,255,105,0.3);
}
.btn--primary:hover {
  background: linear-gradient(135deg, #7fff7f, var(--c-green));
  box-shadow: 0 0 32px rgba(105,255,105,0.5);
  color: var(--c-dark);
  transform: translateY(-2px);
}
.btn--outline {
  background: transparent;
  color: var(--c-cyan);
  border-color: var(--c-cyan);
  box-shadow: 0 0 16px rgba(0,255,255,0.15);
}
.btn--outline:hover {
  background: rgba(0,255,255,0.1);
  box-shadow: 0 0 24px rgba(0,255,255,0.3);
  color: var(--c-cyan);
  transform: translateY(-2px);
}
.btn--full { width: 100%; }

/* ===== 内容布局 ===== */
.content-layout {
  display: flex;
  flex: 1;
  gap: 0;
  align-items: flex-start;
}

/* ===== 侧边栏 ===== */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  padding: 32px 0 32px 24px;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.sidebar-block {
  margin-bottom: 28px;
}
.sidebar-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 10px;
  text-shadow: 0 0 8px rgba(0,255,255,0.4);
}
.sidebar-title span { display: inline; }
.sidebar-list li {
  margin-bottom: 2px;
}
.sidebar-list li a {
  display: block;
  padding: 7px 10px;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  border-radius: 6px;
  min-height: 36px;
  display: flex;
  align-items: center;
  transition: background var(--transition), color var(--transition);
}
.sidebar-list li a:hover {
  background: rgba(105,255,105,0.08);
  color: var(--c-green);
}
.sidebar-list--contact li {
  padding: 6px 10px;
  font-size: 0.78rem;
  color: var(--c-text-muted);
}
.contact-icon { margin-right: 6px; }

/* ===== 主内容区 ===== */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 40px 40px 40px 32px;
}
.main-article { max-width: 820px; }

/* ===== 内容区块 ===== */
.content-section {
  margin-bottom: 56px;
}
.content-section:last-child { margin-bottom: 0; }

.page-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.page-date {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  background: rgba(105,255,105,0.08);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--c-border);
}

/* ===== 正文排版 ===== */
.prose h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-green);
  margin: 36px 0 14px;
  text-shadow: 0 0 16px rgba(105,255,105,0.25);
}
.prose h2 span { display: inline; }
.prose h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-cyan);
  margin: 24px 0 10px;
}
.prose h3 span { display: inline; }
.prose p {
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--c-text);
  line-height: 1.7;
}
.prose ul, .prose ol {
  margin: 12px 0 20px 20px;
  list-style: disc;
}
.prose ol { list-style: decimal; }
.prose li {
  margin-bottom: 8px;
  font-size: 1rem;
  color: var(--c-text);
  line-height: 1.6;
}
.prose a { color: var(--c-green); text-decoration: underline; }
.prose a:hover { color: var(--c-cyan); }
.prose strong { color: var(--c-white); font-weight: 600; }
.prose em { color: var(--c-cyan); font-style: italic; }
.prose blockquote {
  border-left: 3px solid var(--c-green);
  padding: 12px 20px;
  margin: 20px 0;
  background: rgba(105,255,105,0.05);
  border-radius: 0 8px 8px 0;
}
.prose code {
  background: rgba(105,255,105,0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--c-green);
}
.prose pre {
  background: var(--c-dark3);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin: 20px 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.prose th, .prose td {
  padding: 10px 14px;
  border: 1px solid var(--c-border);
  text-align: left;
  font-size: 0.9rem;
}
.prose th {
  background: rgba(105,255,105,0.1);
  color: var(--c-green);
  font-weight: 600;
}
.prose tr:hover td { background: rgba(105,255,105,0.04); }

/* ===== 区块标题 ===== */
.section-heading {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-green);
  margin-bottom: 20px;
  text-shadow: 0 0 16px rgba(105,255,105,0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-heading::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--c-green), var(--c-cyan));
  border-radius: 2px;
  flex-shrink: 0;
}
.section-heading span { display: inline; }

/* ===== 卡片 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.card-grid--compact {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.card {
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(23,38,23,0.9), rgba(13,26,13,0.95));
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: cardFadeIn 0.4s both;
}
.card:hover {
  border-color: var(--c-green);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(105,255,105,0.15);
}
.card-inner {
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
}
.card-inner h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.4;
}
.card-inner h3 span { display: inline; }
.card-inner p {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  min-height: 36px;
  background: rgba(105,255,105,0.1);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-green);
  align-self: flex-start;
  transition: background var(--transition), border-color var(--transition);
}
.card-link:hover {
  background: rgba(105,255,105,0.2);
  border-color: var(--c-green);
  color: var(--c-green);
}

/* ===== 表格 ===== */
.child-table,
.cases-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.child-table th,
.cases-table th {
  padding: 12px 16px;
  background: rgba(105,255,105,0.1);
  color: var(--c-green);
  font-weight: 600;
  text-align: left;
  border-bottom: 2px solid var(--c-border);
}
.child-table td,
.cases-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(105,255,105,0.1);
  color: var(--c-text);
  vertical-align: middle;
}
.child-table tr:hover td,
.cases-table tr:hover td {
  background: rgba(105,255,105,0.04);
}
.child-table td a,
.cases-table td a {
  color: var(--c-green);
}
.table-link {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  min-height: 32px;
  background: rgba(105,255,105,0.1);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-green);
  transition: background var(--transition);
}
.table-link:hover {
  background: rgba(105,255,105,0.2);
  color: var(--c-green);
}

/* ===== About 统计块 ===== */
.stats-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.stat-item {
  flex: 1;
  min-width: 120px;
  text-align: center;
  padding: 24px 16px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(105,255,105,0.05), rgba(0,255,255,0.03));
}
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-green);
  text-shadow: 0 0 20px rgba(105,255,105,0.4);
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
}

/* ===== FAQ CTA 块 ===== */
.faq-cta-block {
  padding: 28px;
  border: 1.5px solid var(--c-border-cyan);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(0,255,255,0.05), rgba(105,255,105,0.03));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.faq-cta-block p {
  color: var(--c-text);
  font-size: 0.95rem;
}

/* ===== 联系表单 ===== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 560px;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-row label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-text-muted);
  letter-spacing: 0.05em;
}
.form-row input,
.form-row textarea {
  background: rgba(105,255,105,0.05);
  border: 1.5px solid var(--c-border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  font-family: var(--font-main);
  color: var(--c-text);
  width: 100%;
  min-height: 44px;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--c-text-muted); }
.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--c-green);
  background: rgba(105,255,105,0.08);
}
.form-row textarea { min-height: 120px; resize: vertical; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-dark3);
  border-top: 1px solid var(--c-border);
  margin-top: auto;
}
.footer-cta {
  background: linear-gradient(135deg, rgba(105,255,105,0.1), rgba(0,255,255,0.05));
  border-bottom: 1px solid var(--c-border);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-cta-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-white);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  padding: 40px;
}
.footer-brand .brand-name {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-green);
  margin-bottom: 8px;
}
.footer-brand p {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}
.footer-nav dl dt {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 10px;
}
.footer-nav dl dd {
  margin: 0 0 4px;
}
.footer-nav dl dd a {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  display: flex;
  align-items: center;
  min-height: 30px;
  padding: 3px 0;
  transition: color var(--transition);
}
.footer-nav dl dd a:hover { color: var(--c-green); }
.footer-links-col h4 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 10px;
}
.footer-links-col ul li {
  margin-bottom: 4px;
}
.footer-links-col ul li a {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  display: flex;
  align-items: center;
  min-height: 30px;
  padding: 3px 0;
}
.footer-links-col ul li a:hover { color: var(--c-green); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 40px;
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
  gap: 12px;
}
.copyright {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}
.footer-meta {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}
.footer-meta a { color: var(--c-text-muted); }
.footer-meta a:hover { color: var(--c-green); }

/* ===== 动效 ===== */
@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes glowPulse {
  0%, 100% { text-shadow: 0 0 20px rgba(105,255,105,0.3); }
  50%       { text-shadow: 0 0 40px rgba(105,255,105,0.6), 0 0 60px rgba(0,255,255,0.2); }
}
.hero-title {
  animation: glowPulse 4s ease-in-out infinite;
}
@keyframes sidenavGlow {
  0%, 100% { border-right-color: rgba(105,255,105,0.2); }
  50%       { border-right-color: rgba(105,255,105,0.4); }
}
.sidenav { animation: sidenavGlow 6s ease-in-out infinite; }

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ===== 移动端汉堡菜单触发器 ===== */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: 200;
  width: 44px; height: 44px;
  background: var(--c-dark2);
  border: 1.5px solid var(--c-border);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0;
}
.mobile-nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--c-green);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 移动端覆盖层 ===== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 99;
}
.nav-overlay.is-open { display: block; }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 860px) {
  :root { --sidenav-w: 0px; }
  .sidenav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    width: 260px;
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  }
  .sidenav.is-open {
    transform: translateX(0);
  }
  .page-body { margin-left: 0; }
  .mobile-nav-toggle { display: flex; }

  .hero-content {
    padding: 0 24px 72px;
    max-width: 100%;
  }
  .hero-title { font-size: clamp(1.6rem, 6vw, 2.4rem); }

  .content-layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    position: static;
    max-height: none;
    padding: 24px 24px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }
  .sidebar-block { margin-bottom: 0; min-width: 140px; }

  .main-content { padding: 24px; }
  .main-article { max-width: 100%; }

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 20px;
  }
  .footer-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }
  .footer-bottom {
    padding: 14px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .card-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

  .faq-cta-block { flex-direction: column; }

  .stats-row { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-content { padding: 0 16px 60px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .main-content { padding: 16px; }
  .card-grid { grid-template-columns: 1fr; }
  .card-grid--compact { grid-template-columns: 1fr 1fr; }
  .footer-cta { padding: 20px 16px; }
  .footer-inner { padding: 20px 16px; }
  .footer-bottom { padding: 12px 16px; }
  .sidebar { padding: 16px 16px 0; }
}

/* ===== 金属/光晕装饰 ===== */
.sidenav-brand::after {
  content: '';
  display: block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 10px var(--c-green), 0 0 20px rgba(105,255,105,0.5);
  margin-left: auto;
  flex-shrink: 0;
  animation: glowPulse 3s ease-in-out infinite;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--c-dark3); }
::-webkit-scrollbar-thumb { background: rgba(105,255,105,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(105,255,105,0.5); }