:root {
  --bg: #0e0a14;
  --surface: #1d1530;
  --accent: #ff6b9d;
  --accent2: #4dd0ff;
  --text: #f5f0ff;
  --muted: #a795c2;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Exo 2', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
/* HEADER (Constraint A1 Style) */
.header {
  background-color: var(--bg);
  border-bottom: 2px solid var(--surface);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
}
.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--text);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.brand span {
  color: var(--accent);
}
.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  transition: color 0.3s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.nav-links a:hover {
  color: var(--accent2);
}
.header-ctas {
  display: flex;
  gap: 1rem;
  margin-left: 1rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 44px;
  border-radius: 0;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn-primary {
  background-color: var(--accent);
  color: var(--bg);
  border: none;
  box-shadow: 0 0 10px rgba(255,107,157,0.4);
}
.btn-primary:hover {
  background-color: var(--text);
  box-shadow: 0 0 20px rgba(255,107,157,0.8);
}
.btn-secondary {
  background-color: transparent;
  color: var(--accent2);
  border: 1px solid var(--accent2);
}
.btn-secondary:hover {
  background-color: var(--accent2);
  color: var(--bg);
  box-shadow: 0 0 15px rgba(77,208,255,0.6);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--accent2);
  font-size: 2rem;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}
/* HERO BANNER */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(29,21,48,0.8) 0%, var(--bg) 100%);
  position: relative;
  border-bottom: 1px solid var(--surface);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.3) 2px, rgba(0,0,0,0.3) 4px);
  pointer-events: none;
  opacity: 0.5;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--text);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  text-shadow: 3px 3px 0 var(--accent), -1px -1px 0 var(--accent2);
  line-height: 1.2;
}
.meta-chips {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.chip {
  background-color: var(--surface);
  border: 1px solid var(--muted);
  padding: 0.25rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--accent2);
  text-transform: uppercase;
  clip-path: polygon(5px 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%, 0 5px);
}
/* MAIN CONTENT */
.main-content {
  padding: 4rem 0;
}
.intro-block {
  background-color: rgba(29,21,48,0.6);
  border-left: 4px solid var(--accent);
  padding: 2rem;
  margin-bottom: 4rem;
  font-size: 1.125rem;
  color: var(--text);
  position: relative;
}
.intro-block::after {
  content: "SYS.MSG";
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--bg);
  padding: 0 10px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--accent);
}
.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}
.content-card {
  background-color: var(--surface);
  border: 1px solid rgba(167, 149, 194, 0.2);
  padding: 2rem;
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.content-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent2);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.content-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 30px; height: 30px;
  border-top: 2px solid var(--accent2);
  border-left: 2px solid var(--accent2);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.content-card:hover::before { opacity: 1; }
.card-number {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-display);
  font-size: 2rem;
  color: rgba(167, 149, 194, 0.1);
  font-weight: 900;
  line-height: 1;
}
.content-card h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent2);
  margin-bottom: 1.5rem;
  padding-right: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.content-card p {
  color: var(--muted);
  margin-bottom: 1rem;
}
.content-card p a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-style: dashed;
}
.content-card p a:hover {
  color: var(--accent2);
}
.checklist {
  list-style: none;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px dashed rgba(167, 149, 194, 0.3);
}
.checklist li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 10px;
  height: 10px;
  background-color: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}
/* FAQ SECTION */
.faq-section {
  margin-bottom: 4rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--text);
  text-align: center;
  margin-bottom: 2rem;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(77,208,255,0.3);
}
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}
details {
  background-color: var(--surface);
  border: 1px solid rgba(167, 149, 194, 0.2);
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}
details:hover {
  border-color: var(--muted);
}
summary {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent2);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  min-height: 44px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "▼";
  color: var(--accent);
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}
details[open] summary::after {
  transform: rotate(180deg);
}
details p {
  padding: 0 1.5rem 1.5rem;
  color: var(--muted);
  border-top: 1px solid rgba(0,0,0,0.2);
  margin-top: 0.5rem;
  padding-top: 1rem;
}
/* RELATED LINKS */
.related-links {
  background-color: rgba(29,21,48,0.5);
  border: 1px dashed var(--muted);
  padding: 3rem 2rem;
  text-align: center;
  margin-bottom: 4rem;
}
.related-links h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.link-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.link-tag {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--bg);
  border: 1px solid var(--muted);
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  transition: all 0.3s ease;
  min-height: 44px;
}
.link-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: rgba(255,107,157,0.1);
  box-shadow: 0 0 10px rgba(255,107,157,0.2);
}
/* CTA BLOCK */
.cta-mega {
  background: linear-gradient(135deg, var(--surface) 0%, #2a1b42 100%);
  border: 2px solid var(--accent);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}
.cta-mega::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background: repeating-linear-gradient(45deg, transparent, transparent 15px, rgba(77,208,255,0.03) 15px, rgba(77,208,255,0.03) 30px);
  pointer-events: none;
}
.cta-mega h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--text);
  margin-bottom: 1rem;
  text-transform: uppercase;
  text-shadow: 0 0 15px rgba(255,107,157,0.5);
  position: relative;
  z-index: 2;
}
.cta-mega p {
  color: var(--muted);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}
/* FOOTER (Constraint A2 Style) */
.testimoni-author {
  background-color: var(--surface);
  border-top: 1px solid rgba(167, 149, 194, 0.2);
  padding: 2rem;
  text-align: center;
  font-family: var(--font-display);
  color: var(--text);
  font-size: 1rem;
}
.testimoni-author span {
  color: var(--accent2);
  font-size: 0.875rem;
}
/* MEDIA QUERIES */
@media (min-width: 768px) {
  .grid-layout { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--surface);
    padding: 1.5rem;
    border-bottom: 2px solid var(--accent);
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  }
  .nav-links.active { display: flex; }
  .header-ctas {
    flex-direction: column;
    width: 100%;
    margin-left: 0;
    margin-top: 1rem;
  }
  .header-ctas .btn { width: 100%; }
  .menu-toggle { display: block; }
}
@media (max-width: 390px) {
  .hero h1 { font-size: 1.75rem; }
  .cta-mega h2 { font-size: 1.75rem; }
  .cta-actions { flex-direction: column; gap: 1rem; }
  .cta-actions .btn { width: 100%; }
}


/* pipeline image & layout guards */
html, body { overflow-x: clip; }
img { max-width: 100%; height: auto; }
img.site-logo { height: 40px; width: auto; max-width: 240px; object-fit: contain; flex: none; }
header .logo a { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
img.hero-visual { width: 100%; max-width: 560px; height: auto; object-fit: cover; border-radius: 16px; display: block; margin-inline: auto; }
img[class^="strip-"], img[class*=" strip-"] { width: 100%; height: auto; display: block; border-radius: 12px; object-fit: cover; }
/* 合规声明块（zb-disclaimer，全站 footer） */
.zb-disclaimer { margin-top: 18px !important; padding: 14px 0 0 0 !important; border-top: 1px solid rgba(128,128,128,.25) !important; font-size: .72rem !important; line-height: 1.7 !important; opacity: .85 !important; display: block !important; text-align: left !important; width: 100% !important; clear: both !important; }
.zb-disclaimer .zb-18 { display: inline-block !important; padding: 2px 10px !important; border: 1.5px solid currentColor !important; border-radius: 6px !important; font-weight: 800 !important; letter-spacing: 1px !important; margin: 0 0 10px 0 !important; font-size: .78rem !important; }
.zb-disclaimer p { display: block !important; margin: 5px 0 !important; padding: 0 !important; color: inherit !important; font-size: .72rem !important; line-height: 1.7 !important; }
.zb-disclaimer p:last-child { margin-bottom: 0 !important; }