:root {
  --bg-void: #060a14;
  --bg-deep: #0b1222;
  --surface: rgba(10, 17, 34, 0.82);
  --surface-elevated: rgba(13, 22, 42, 0.88);
  --surface-hover: rgba(20, 34, 62, 0.92);
  --border: rgba(148, 163, 184, 0.16);
  --border-cyan: rgba(56, 189, 248, 0.44);
  --border-amber: rgba(245, 158, 11, 0.48);
  --text-main: #f8fafc;
  --text-soft: #cbd5e1;
  --text-muted: #94a3b8;
  --amber: #f59e0b;
  --amber-bright: #fbbf24;
  --cyan: #38bdf8;
  --cyan-deep: #0284c7;
  --emerald: #10b981;
  --crimson: #f43f5e;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-card: 0 18px 45px rgba(2, 6, 23, 0.55);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: #050811;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-main);
  background: transparent;
  line-height: 1.68;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* =========================================================
   Dynamic Animated HD Lighthouse CSS Background (Zero-JS)
   ========================================================= */
.dynamic-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: #050811;
}

.dynamic-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../assets/lighthouse-bg.jpg") 79.5% 21% / cover no-repeat;
  opacity: 0.92;
  will-change: transform;
  transform-origin: 79.5% 21%;
  animation: lighthouseKenBurns 18s ease-in-out infinite alternate;
}

.dynamic-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 79.5% 21%, rgba(251, 191, 36, 0.2) 0%, transparent 28%),
    linear-gradient(
      180deg,
      rgba(5, 8, 17, 0.24) 0%,
      rgba(6, 10, 20, 0.48) 52%,
      rgba(5, 9, 18, 0.78) 100%
    );
}

.bg-aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.36;
  will-change: transform, opacity;
  z-index: 1;
}

.bg-aurora-cyan {
  width: 56vw;
  height: 56vw;
  max-width: 720px;
  max-height: 720px;
  top: -14%;
  left: -8%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.48) 0%, rgba(2, 132, 199, 0.14) 55%, transparent 72%);
  animation: auroraDriftA 14s ease-in-out infinite alternate;
}

.bg-aurora-amber {
  width: 28vw;
  height: 28vw;
  max-width: 400px;
  max-height: 400px;
  top: 4%;
  right: 8%;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.56) 0%, rgba(245, 158, 11, 0.14) 52%, transparent 74%);
  animation: auroraDriftB 6s ease-in-out infinite alternate;
}

.bg-aurora-indigo {
  width: 50vw;
  height: 50vw;
  max-width: 660px;
  max-height: 660px;
  bottom: -22%;
  left: 18%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.32) 0%, rgba(16, 185, 129, 0.14) 54%, transparent 74%);
  animation: auroraDriftC 18s ease-in-out infinite alternate;
}

.bg-grid-plane {
  position: absolute;
  inset: -120px;
  z-index: 1;
  background-image:
    linear-gradient(to right, rgba(56, 189, 248, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(56, 189, 248, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 82% 72% at 48% 55%, #000 32%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 82% 72% at 48% 55%, #000 32%, transparent 100%);
  animation: gridDrift 20s linear infinite;
}

.bg-scan-beam {
  position: absolute;
  left: 79.5%;
  top: 21%;
  width: 260vmax;
  height: 260vmax;
  margin-left: -130vmax;
  margin-top: -130vmax;
  z-index: 1;
  background:
    conic-gradient(
      from 250deg at 50% 50%,
      transparent 0deg,
      rgba(253, 224, 130, 0.24) 11deg,
      rgba(251, 191, 36, 0.15) 20deg,
      rgba(56, 189, 248, 0.07) 30deg,
      transparent 42deg,
      transparent 360deg
    );
  transform-origin: 50% 50%;
  will-change: transform, opacity;
  animation: lighthouseBeam 9s ease-in-out infinite alternate;
}

@keyframes lighthouseKenBurns {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.075);
  }
}

@keyframes lighthouseBeam {
  0% {
    transform: rotate(-16deg);
    opacity: 0.72;
  }
  50% {
    transform: rotate(12deg);
    opacity: 1;
  }
  100% {
    transform: rotate(-10deg);
    opacity: 0.8;
  }
}

@keyframes auroraDriftA {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.42;
  }
  50% {
    transform: translate3d(8vw, 6vh, 0) scale(1.1);
    opacity: 0.56;
  }
  100% {
    transform: translate3d(3vw, 12vh, 0) scale(0.96);
    opacity: 0.44;
  }
}

@keyframes auroraDriftB {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.36;
  }
  50% {
    transform: translate3d(-9vw, -5vh, 0) scale(1.12);
    opacity: 0.5;
  }
  100% {
    transform: translate3d(-4vw, 8vh, 0) scale(0.95);
    opacity: 0.38;
  }
}

@keyframes auroraDriftC {
  0% {
    transform: translate3d(0, 0, 0) scale(0.96);
    opacity: 0.32;
  }
  100% {
    transform: translate3d(-7vw, -9vh, 0) scale(1.08);
    opacity: 0.48;
  }
}

@keyframes gridDrift {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(64px, 64px, 0);
  }
}

@keyframes pulseDot {
  0%, 100% {
    transform: scale(1);
    opacity: 0.95;
  }
  50% {
    transform: scale(1.35);
    opacity: 0.45;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dynamic-bg::before,
  .bg-aurora,
  .bg-grid-plane,
  .bg-scan-beam,
  .status-dot {
    animation: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* =========================================================
   Layout Helpers
   ========================================================= */
.container {
  width: min(1200px, calc(100% - 2rem));
  margin-inline: auto;
}

.section {
  padding: 4.5rem 0;
  position: relative;
}

.section-header {
  max-width: 760px;
  margin-bottom: 2.4rem;
}

.section-header-center {
  text-align: center;
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.28);
  padding: 0.34rem 0.82rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}

.section-title {
  margin: 0 0 0.7rem;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
}

.gradient-text {
  background: linear-gradient(110deg, var(--amber-bright) 0%, #fff3d6 34%, var(--cyan) 74%, #60a5fa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   Sticky Header & Top-Left Logo
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 10, 20, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  flex-shrink: 0;
}

.brand-logo-wrap {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  padding: 2px;
  background: linear-gradient(135deg, var(--amber), var(--cyan));
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.28);
  flex-shrink: 0;
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #14171f;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text-main);
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-links a {
  padding: 0.45rem 0.78rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 999px;
  transition: color 0.2s ease, background-color 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text-main);
  background: rgba(56, 189, 248, 0.12);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Pure CSS Mobile Menu Drawer (<details>) */
.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.8rem;
  border-radius: 10px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-drawer {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 220px;
  padding: 0.6rem;
  border-radius: var(--radius-md);
  background: rgba(11, 18, 34, 0.96);
  border: 1px solid var(--border-cyan);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-drawer a {
  padding: 0.55rem 0.8rem;
  border-radius: 8px;
  font-size: 0.92rem;
  color: var(--text-soft);
}

.mobile-drawer a:hover {
  background: rgba(56, 189, 248, 0.12);
  color: var(--text-main);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.72rem 1.4rem;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.54rem 1.08rem;
  font-size: 0.88rem;
}

.btn-primary {
  color: #060a14;
  background: linear-gradient(125deg, var(--amber-bright) 0%, #fb923c 45%, var(--cyan) 100%);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.26), 0 4px 14px rgba(245, 158, 11, 0.22);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(56, 189, 248, 0.36), 0 6px 18px rgba(245, 158, 11, 0.3);
}

.btn-ghost {
  color: var(--text-main);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-cyan);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(56, 189, 248, 0.14);
  transform: translateY(-2px);
}

/* =========================================================
   Hero Section
   ========================================================= */
.hero {
  padding: 4.5rem 0 3.2rem;
}

.hero-single {
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 0.9rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(245, 158, 11, 0.36);
  color: var(--amber-bright);
  font-size: 0.83rem;
  font-weight: 600;
  margin-bottom: 1.15rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 10px var(--emerald);
  animation: pulseDot 2.2s ease-in-out infinite;
}

.hero-title {
  margin: 0 0 1.05rem;
  font-size: clamp(2.05rem, 4.3vw, 3.35rem);
  line-height: 1.18;
  font-weight: 850;
  letter-spacing: -0.025em;
}

.hero-lead {
  margin: 0 auto 1.75rem;
  font-size: 1.06rem;
  color: var(--text-soft);
  max-width: 720px;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  margin-bottom: 1.8rem;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-highlights span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-highlights strong {
  color: var(--cyan);
}

/* =========================================================
   Trust Strip
   ========================================================= */
.kpi-strip {
  padding: 1rem 0 2.5rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.2rem;
  backdrop-filter: blur(12px);
}

.kpi-value {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.kpi-value em {
  font-style: normal;
  color: var(--amber-bright);
}

.kpi-label {
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* =========================================================
   Feature Grid
   ========================================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.45rem;
  backdrop-filter: blur(14px);
  transition: transform 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.glass-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-cyan);
  background: var(--surface-hover);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  margin-bottom: 0.95rem;
  font-weight: 800;
  font-size: 0.92rem;
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.28);
}

.card-icon-amber {
  color: var(--amber-bright);
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
}

.glass-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.12rem;
  font-weight: 700;
}

.glass-card p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-muted);
}

/* =========================================================
   Pricing Section — Strictly ONE ROW ("所有价格要同排")
   ========================================================= */
.pricing-scroll {
  overflow-x: auto;
  padding: 16px 4px 20px;
  margin-inline: -4px;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  scrollbar-color: rgba(56, 189, 248, 0.4) rgba(15, 23, 42, 0.5);
  scrollbar-width: thin;
}

.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(242px, 1fr));
  gap: 1.1rem;
  align-items: stretch;
}

.plan-card {
  scroll-snap-align: start;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: transform 0.24s ease, border-color 0.24s ease;
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-cyan);
}

.plan-card-featured {
  background: linear-gradient(170deg, rgba(20, 35, 66, 0.95), rgba(11, 18, 36, 0.94));
  border: 1px solid var(--border-amber);
  box-shadow: 0 20px 48px rgba(245, 158, 11, 0.14), 0 12px 32px rgba(56, 189, 248, 0.14);
}

.plan-badge {
  position: absolute;
  top: -12px;
  right: 16px;
  font-size: 0.74rem;
  font-weight: 800;
  color: #060a14;
  background: linear-gradient(90deg, var(--amber-bright), var(--cyan));
  padding: 0.24rem 0.72rem;
  border-radius: 999px;
}

.plan-tier {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.28rem;
}

.plan-card-featured .plan-tier {
  color: var(--amber-bright);
}

.plan-name {
  margin: 0 0 0.75rem;
  font-size: 1.22rem;
  font-weight: 800;
}

.plan-price-line {
  display: flex;
  align-items: baseline;
  gap: 0.28rem;
  margin-bottom: 0.4rem;
}

.plan-currency {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--amber-bright);
}

.plan-amount {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.plan-unit {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.plan-cycles {
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(6, 10, 20, 0.55);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.42rem 0.6rem;
  margin-bottom: 1rem;
  line-height: 1.45;
}

.plan-quota {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--emerald);
  margin-bottom: 0.85rem;
}

.plan-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.52rem;
  font-size: 0.87rem;
  color: var(--text-soft);
}

.plan-list li {
  position: relative;
  padding-left: 1.25rem;
}

.plan-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 800;
}

.plan-cta {
  width: 100%;
  text-align: center;
}

.pricing-footnote {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.pricing-footnote code {
  font-family: var(--font-mono);
  color: var(--amber-bright);
  background: rgba(245, 158, 11, 0.14);
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
}

.inline-link {
  color: var(--cyan);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.inline-link:hover {
  color: var(--amber-bright);
}

/* =========================================================
   Client Ecosystem & Outbound Links
   ========================================================= */
.client-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.client-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.3rem;
}

.client-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.client-os {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--amber-bright);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.18rem 0.56rem;
  border-radius: 999px;
}

.client-card h3 {
  margin: 0.55rem 0 0.4rem;
  font-size: 1.08rem;
}

.client-card p {
  margin: 0;
  font-size: 0.89rem;
  color: var(--text-muted);
}

.client-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

/* =========================================================
   Articles Hub Grid (8 Guides)
   ========================================================= */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.guide-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.45rem;
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.guide-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-cyan);
}

.guide-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  font-size: 0.76rem;
}

.tag {
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.26);
  color: var(--cyan);
  font-weight: 600;
}

.tag-amber {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.28);
  color: var(--amber-bright);
}

.guide-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.12rem;
  line-height: 1.4;
}

.guide-card h3 a:hover {
  color: var(--cyan);
}

.guide-card p {
  margin: 0 0 1rem;
  font-size: 0.91rem;
  color: var(--text-muted);
}

.guide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-soft);
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
}

/* =========================================================
   User Reviews
   ========================================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.review-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.4rem;
}

.review-stars {
  color: var(--amber-bright);
  letter-spacing: 0.12em;
  font-size: 0.92rem;
}

.review-quote {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-soft);
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
}

.review-author strong {
  display: block;
  color: var(--text-main);
}

.review-author span {
  color: var(--text-muted);
}

.review-plan-badge {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--emerald);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.28);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* =========================================================
   FAQ Accordion (Pure HTML <details> / <summary>)
   ========================================================= */
.faq-list {
  display: grid;
  gap: 0.85rem;
  max-width: 920px;
  margin-inline: auto;
}

.faq-item {
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--border-cyan);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.15rem 1.35rem;
  font-size: 1.02rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-main);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--cyan);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
  color: var(--amber-bright);
}

.faq-answer {
  padding: 0 1.35rem 1.25rem;
  font-size: 0.94rem;
  color: var(--text-soft);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.faq-answer p {
  margin: 0.85rem 0 0;
}

/* =========================================================
   Bottom CTA Banner & Footer
   ========================================================= */
.cta-banner {
  background: linear-gradient(135deg, rgba(16, 30, 58, 0.92), rgba(11, 18, 34, 0.94));
  border: 1px solid var(--border-amber);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: var(--shadow-card);
}

.cta-banner h2 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.4rem, 2.6vw, 1.95rem);
}

.cta-banner p {
  margin: 0;
  color: var(--text-muted);
  max-width: 620px;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(4, 7, 15, 0.86);
  padding: 3.2rem 0 2.2rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.2rem;
}

.footer-col h4 {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--cyan);
}

.footer-bottom {
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* =========================================================
   Responsive Breakpoints
   ========================================================= */
@media (max-width: 1024px) {
  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .feature-grid,
  .client-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  .mobile-menu {
    display: block;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 3.2rem 0;
  }
  .kpi-grid,
  .feature-grid,
  .client-grid,
  .guides-grid,
  .reviews-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .brand-sub {
    display: none;
  }
  .cta-banner {
    padding: 1.75rem 1.25rem;
  }
}