/* ==========================================================================
   CordCloud (cordcloud.shop) — Pure Native CSS Stylesheet
   Zero JS, Zero External Frameworks, Instant Load & GPU Dynamic Background
   ========================================================================== */

:root {
  --bg-deep: #07080d;
  --bg-base: #0d101b;
  --bg-surface: rgba(18, 22, 34, 0.74);
  --bg-surface-strong: rgba(20, 24, 38, 0.9);
  --bg-glass: rgba(18, 22, 34, 0.6);
  --border-subtle: rgba(148, 163, 184, 0.16);
  --border-accent: rgba(253, 186, 116, 0.48);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-cyan: #fdba74;
  --accent-ice-light: #ffedd5;
  --accent-blue: #fb923c;
  --accent-indigo: #fed7aa;
  --accent-emerald: #10b981;
  --accent-amber: #fbbf24;
  --shadow-card: 0 20px 50px -24px rgba(2, 6, 23, 0.85);
  --shadow-glow: 0 0 36px -8px rgba(251, 146, 60, 0.3);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --container: 1240px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-deep);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

/* ==========================================================================
   Dynamic Animated Background (100% Pure CSS, GPU Composited)
   ========================================================================== */

.bg-stage {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 55% at 50% -10%, rgba(251, 146, 60, 0.14), transparent 65%),
    radial-gradient(ellipse 65% 50% at 88% 18%, rgba(253, 186, 116, 0.1), transparent 60%),
    linear-gradient(180deg, #07080d 0%, #0d101b 55%, #06070c 100%);
}

.bg-grid {
  position: absolute;
  inset: -64px;
  background-image:
    linear-gradient(to right, rgba(253, 186, 116, 0.048) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(253, 186, 116, 0.048) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 30%, #000 35%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 30%, #000 35%, transparent 90%);
  animation: gridDrift 26s linear infinite;
}

.aurora-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(78px);
  opacity: 0.48;
  will-change: transform;
}

.aurora-orb--1 {
  width: 560px;
  height: 560px;
  top: -160px;
  left: -120px;
  background: radial-gradient(circle, rgba(251, 146, 60, 0.34), rgba(253, 186, 116, 0.06) 70%);
  animation: orbFloatA 19s ease-in-out infinite alternate;
}

.aurora-orb--2 {
  width: 520px;
  height: 520px;
  top: 22%;
  right: -140px;
  background: radial-gradient(circle, rgba(253, 186, 116, 0.28), rgba(255, 237, 213, 0.05) 72%);
  animation: orbFloatB 24s ease-in-out infinite alternate;
}

.aurora-orb--3 {
  width: 480px;
  height: 480px;
  bottom: -140px;
  left: 30%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.22), rgba(254, 215, 170, 0.05) 72%);
  animation: orbFloatC 22s ease-in-out infinite alternate;
}

.signal-beams {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.signal-beam {
  position: absolute;
  height: 1px;
  width: 38vw;
  background: linear-gradient(90deg, transparent, rgba(253, 186, 116, 0.55), rgba(255, 237, 213, 0.45), transparent);
  opacity: 0;
  will-change: transform, opacity;
}

.signal-beam--1 {
  top: 20%;
  left: -40vw;
  animation: beamSweep 11s ease-in-out infinite;
}

.signal-beam--2 {
  top: 52%;
  left: -40vw;
  animation: beamSweep 15s ease-in-out 4s infinite;
}

.signal-beam--3 {
  top: 78%;
  left: -40vw;
  animation: beamSweep 13s ease-in-out 7.5s infinite;
}

/* Starfield Layers & Diverse Animated Stars */
.starfield {
  position: absolute;
  inset: -200px;
  will-change: transform, opacity;
}

.starfield--far {
  background-image:
    radial-gradient(1.2px 1.2px at 24px 36px, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(1.5px 1.5px at 96px 140px, rgba(254, 215, 170, 0.85), transparent),
    radial-gradient(1px 1px at 165px 62px, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1.4px 1.4px at 228px 188px, rgba(253, 186, 116, 0.75), transparent),
    radial-gradient(1px 1px at 286px 92px, rgba(224, 242, 254, 0.75), transparent),
    radial-gradient(1.3px 1.3px at 54px 248px, rgba(255, 237, 213, 0.8), transparent),
    radial-gradient(1.1px 1.1px at 188px 282px, rgba(255, 255, 255, 0.72), transparent),
    radial-gradient(1.6px 1.6px at 310px 236px, rgba(253, 224, 71, 0.65), transparent);
  background-size: 340px 340px;
  animation: starDriftSlow 48s linear infinite, starTwinkleFar 6s ease-in-out infinite alternate;
}

.starfield--near {
  background-image:
    radial-gradient(2px 2px at 42px 84px, rgba(255, 255, 255, 0.92), transparent),
    radial-gradient(2.2px 2.2px at 178px 46px, rgba(253, 186, 116, 0.9), transparent),
    radial-gradient(1.8px 1.8px at 276px 164px, rgba(255, 237, 213, 0.88), transparent),
    radial-gradient(2px 2px at 112px 268px, rgba(255, 255, 255, 0.82), transparent),
    radial-gradient(2.4px 2.4px at 362px 306px, rgba(251, 146, 60, 0.82), transparent),
    radial-gradient(1.6px 1.6px at 398px 94px, rgba(224, 242, 254, 0.8), transparent);
  background-size: 440px 440px;
  animation: starDriftFast 34s linear infinite, starTwinkleNear 4.4s ease-in-out 1.2s infinite alternate;
}

.star-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* 4-point cross sparkle stars */
.star-four {
  position: absolute;
  background: radial-gradient(circle, #ffffff 10%, #fed7aa 65%, #fb923c 100%);
  clip-path: polygon(50% 0%, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0% 50%, 39% 39%);
  filter: drop-shadow(0 0 8px rgba(253, 186, 116, 0.85));
  will-change: transform, opacity;
}

.star-four--1 { width: 18px; height: 18px; top: 12%; left: 10%; animation: sparklePulse 4.2s ease-in-out infinite; }
.star-four--2 { width: 13px; height: 13px; top: 24%; right: 14%; animation: sparklePulse 5.4s ease-in-out 1.1s infinite; }
.star-four--3 { width: 16px; height: 16px; top: 58%; left: 6%; animation: sparklePulse 4.8s ease-in-out 2.3s infinite; }
.star-four--4 { width: 12px; height: 12px; top: 76%; right: 9%; animation: sparklePulse 3.9s ease-in-out 0.6s infinite; }

/* 5-point classic stars */
.star-five {
  position: absolute;
  background: linear-gradient(135deg, #fffaf0 0%, #fdba74 100%);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  filter: drop-shadow(0 0 7px rgba(253, 186, 116, 0.72));
  will-change: transform, opacity;
}

.star-five--1 { width: 14px; height: 14px; top: 18%; left: 28%; animation: starFloatSpin 7s ease-in-out infinite; }
.star-five--2 { width: 11px; height: 11px; top: 38%; right: 24%; animation: starFloatSpin 8.5s ease-in-out 1.8s infinite; }
.star-five--3 { width: 15px; height: 15px; top: 68%; left: 22%; animation: starFloatSpin 6.8s ease-in-out 3s infinite; }
.star-five--4 { width: 12px; height: 12px; top: 86%; right: 28%; animation: starFloatSpin 9s ease-in-out 0.9s infinite; }

/* 8-point starburst crystal stars */
.star-eight {
  position: absolute;
  width: 18px;
  height: 18px;
  filter: drop-shadow(0 0 10px rgba(255, 237, 213, 0.85));
  animation: starburstRotate 14s linear infinite;
  will-change: transform, opacity;
}

.star-eight::before,
.star-eight::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, #ffffff 15%, #fdba74 80%);
  clip-path: polygon(50% 0%, 58% 42%, 100% 50%, 58% 58%, 50% 100%, 42% 58%, 0% 50%, 42% 42%);
}

.star-eight::after {
  transform: rotate(45deg) scale(0.76);
  opacity: 0.85;
}

.star-eight--1 { top: 15%; right: 28%; }
.star-eight--2 { top: 47%; left: 16%; width: 14px; height: 14px; animation-duration: 18s; animation-direction: reverse; }
.star-eight--3 { top: 81%; left: 46%; width: 16px; height: 16px; animation-duration: 16s; }

/* Glowing halo stars */
.star-halo {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fffaf5;
  box-shadow: 0 0 10px 3px rgba(253, 186, 116, 0.65), 0 0 22px 6px rgba(251, 146, 60, 0.25);
  animation: haloBreath 4.5s ease-in-out infinite;
  will-change: transform, opacity;
}

.star-halo--1 { top: 31%; left: 12%; animation-delay: 0.4s; }
.star-halo--2 { top: 44%; right: 11%; animation-delay: 1.9s; }
.star-halo--3 { top: 72%; right: 21%; animation-delay: 3.1s; }

/* Shooting stars / Meteors */
.meteor {
  position: absolute;
  width: 140px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.95), rgba(253, 186, 116, 0.7), transparent);
  box-shadow: 0 0 10px rgba(253, 186, 116, 0.7);
  opacity: 0;
  transform: rotate(-32deg);
  will-change: transform, opacity;
}

.meteor::before {
  content: "";
  position: absolute;
  left: 0;
  top: -2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px 2px #fed7aa;
}

.meteor--1 { top: 10%; left: 68%; animation: meteorFall 9s ease-in 1.5s infinite; }
.meteor--2 { top: 26%; left: 92%; animation: meteorFall 13s ease-in 5.5s infinite; }
.meteor--3 { top: 48%; left: 78%; animation: meteorFall 11s ease-in 8.5s infinite; }

@keyframes starDriftSlow {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-170px, -170px, 0); }
}

@keyframes starDriftFast {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-220px, -220px, 0); }
}

@keyframes starTwinkleFar {
  0% { opacity: 0.55; }
  100% { opacity: 0.95; }
}

@keyframes starTwinkleNear {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

@keyframes sparklePulse {
  0%, 100% { transform: scale(0.7) rotate(0deg); opacity: 0.45; }
  50% { transform: scale(1.22) rotate(22deg); opacity: 1; }
}

@keyframes starFloatSpin {
  0%, 100% { transform: translateY(0) scale(0.85) rotate(0deg); opacity: 0.45; }
  50% { transform: translateY(-10px) scale(1.15) rotate(24deg); opacity: 0.95; }
}

@keyframes starburstRotate {
  0% { transform: rotate(0deg) scale(0.88); opacity: 0.65; }
  50% { transform: rotate(180deg) scale(1.16); opacity: 1; }
  100% { transform: rotate(360deg) scale(0.88); opacity: 0.65; }
}

@keyframes haloBreath {
  0%, 100% { transform: scale(0.8); opacity: 0.45; }
  50% { transform: scale(1.35); opacity: 1; }
}

@keyframes meteorFall {
  0% { transform: translate3d(0, 0, 0) rotate(-32deg); opacity: 0; }
  6% { opacity: 0.95; }
  22% { transform: translate3d(-460px, 290px, 0) rotate(-32deg); opacity: 0; }
  100% { transform: translate3d(-460px, 290px, 0) rotate(-32deg); opacity: 0; }
}

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

@keyframes orbFloatA {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(110px, 75px, 0) scale(1.12);
  }
}

@keyframes orbFloatB {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-120px, -85px, 0) scale(1.15);
  }
}

@keyframes orbFloatC {
  0% {
    transform: translate3d(0, 0, 0) scale(0.96);
  }
  100% {
    transform: translate3d(85px, -65px, 0) scale(1.1);
  }
}

@keyframes beamSweep {
  0% {
    transform: translate3d(0, 0, 0);
    opacity: 0;
  }
  15% {
    opacity: 0.65;
  }
  70% {
    opacity: 0.4;
  }
  100% {
    transform: translate3d(145vw, 0, 0);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bg-grid,
  .aurora-orb,
  .signal-beam,
  .starfield,
  .star-four,
  .star-five,
  .star-eight,
  .star-halo,
  .meteor,
  .status-dot::after {
    animation: none !important;
  }
}

/* ==========================================================================
   Layout & Containers
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 76px 0;
  position: relative;
}

.section--tight {
  padding: 56px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 44px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-cyan);
  background: rgba(253, 186, 116, 0.12);
  border: 1px solid rgba(253, 186, 116, 0.3);
  margin-bottom: 14px;
}

.section-title {
  margin: 0 0 12px;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

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

/* ==========================================================================
   Sticky Top Navbar with Top-Left Brand Logo
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(5, 9, 20, 0.78);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo__mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.14));
}

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

.brand-logo__name {
  font-size: 1.22rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #ffffff 10%, #fed7aa 70%, #fb923c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-logo__domain {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.18s ease;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--accent-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Pure HTML/CSS Mobile Drawer via <details> */
.mobile-nav {
  display: none;
}

/* ==========================================================================
   Buttons & CTA Controls
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: transform 0.18s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  color: #1f0f04;
  background: linear-gradient(135deg, #ffedd5 0%, #fdba74 52%, #fb923c 100%);
  box-shadow: 0 10px 26px -10px rgba(253, 186, 116, 0.58);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(251, 146, 60, 0.75);
}

.btn--secondary {
  color: var(--text-primary);
  background: rgba(30, 41, 59, 0.65);
  border: 1px solid var(--border-subtle);
}

.btn--secondary:hover {
  border-color: var(--border-accent);
  background: rgba(30, 41, 59, 0.95);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 9px 17px;
  font-size: 0.875rem;
  border-radius: 10px;
}

.btn--block {
  width: 100%;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  padding: 76px 0 60px;
}

.hero-grid {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.28);
  color: #6ee7b7;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.status-dot {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(16, 185, 129, 0.55);
  animation: pulseRing 2.2s ease-out infinite;
}

@keyframes pulseRing {
  0% {
    transform: scale(0.75);
    opacity: 0.9;
  }
  100% {
    transform: scale(1.85);
    opacity: 0;
  }
}

.hero-title {
  margin: 0 0 18px;
  font-size: clamp(2.05rem, 4.1vw, 3.2rem);
  font-weight: 850;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.gradient-text {
  background: linear-gradient(125deg, #fffaf5 5%, #fed7aa 48%, #fb923c 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 auto 28px;
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 740px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 32px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 760px;
  margin: 0 auto;
}

.metric-chip {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.metric-chip__value {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.metric-chip__label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Feature Cards & Core Advantages
   ========================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

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

.card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(253, 186, 116, 0.12);
  border: 1px solid rgba(253, 186, 116, 0.3);
  color: #fdba74;
  margin-bottom: 16px;
}

.card__title {
  margin: 0 0 8px;
  font-size: 1.12rem;
  font-weight: 700;
}

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

/* ==========================================================================
   Single-Row Pricing Plans ("所有价格要同排")
   ========================================================================== */

.coupon-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 20px;
  margin: 0 auto 30px;
  max-width: 920px;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(251, 146, 60, 0.12), rgba(253, 186, 116, 0.12));
  border: 1px solid rgba(253, 186, 116, 0.34);
  font-size: 0.93rem;
  color: var(--text-secondary);
}

.code-pill {
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 8px;
  background: rgba(5, 9, 20, 0.72);
  border: 1px dashed var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Strictly 4 pricing tiers side-by-side on desktop/laptop */
.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface-strong);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  backdrop-filter: blur(16px);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.plan-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
}

.plan-card--featured {
  border-color: rgba(253, 186, 116, 0.72);
  background: linear-gradient(180deg, rgba(251, 146, 60, 0.16) 0%, rgba(20, 24, 38, 0.94) 55%);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  color: #1f0f04;
  background: linear-gradient(90deg, #ffedd5, #fdba74, #fb923c);
  white-space: nowrap;
}

.plan-card__head {
  margin-bottom: 16px;
}

.plan-card__name {
  margin: 0 0 6px;
  font-size: 1.15rem;
  font-weight: 800;
}

.plan-card__tag {
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.plan-card__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 14px 0;
  margin-bottom: 16px;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.plan-currency {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.plan-amount {
  font-size: 2.25rem;
  font-weight: 850;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #ffffff;
}

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

.plan-features {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plan-features li::before {
  content: "✓";
  color: var(--accent-emerald);
  font-weight: 800;
  flex-shrink: 0;
}

.pricing-footnote {
  margin: 22px auto 0;
  text-align: center;
  max-width: 860px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   GEO Structured Spec Table
   ========================================================================== */

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-strong);
  backdrop-filter: blur(14px);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
  font-size: 0.92rem;
}

.spec-table th,
.spec-table td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.spec-table thead th {
  background: rgba(253, 186, 116, 0.09);
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.03em;
}

.spec-table tbody tr:last-child td {
  border-bottom: none;
}

.spec-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.05);
}

/* ==========================================================================
   Article Cards Hub & Internal Navigation
   ========================================================================== */

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform 0.22s ease, border-color 0.22s ease;
}

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

.article-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.keyword-badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 6px;
  background: rgba(251, 146, 60, 0.14);
  border: 1px solid rgba(253, 186, 116, 0.36);
  color: #fed7aa;
  font-size: 0.75rem;
  font-weight: 600;
}

.article-card__title {
  margin: 0 0 10px;
  font-size: 1.08rem;
  font-weight: 750;
  line-height: 1.4;
}

.article-card__title a:hover {
  color: var(--accent-cyan);
}

.article-card__excerpt {
  margin: 0 0 18px;
  font-size: 0.89rem;
  color: var(--text-muted);
  flex-grow: 1;
}

.article-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.article-card__link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   User Reviews Grid
   ========================================================================== */

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.review-stars {
  color: var(--accent-amber);
  font-size: 0.95rem;
  letter-spacing: 2px;
}

.review-quote {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.84rem;
}

.review-author__name {
  font-weight: 700;
  color: var(--text-primary);
}

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

/* ==========================================================================
   Pure HTML FAQ Accordion (<details> / <summary>)
   ========================================================================== */

.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

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

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 700;
  font-size: 1.01rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--accent-cyan);
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--text-secondary);
  font-size: 0.94rem;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding-top: 14px;
}

/* ==========================================================================
   Outbound Ecosystem Resources & Footer
   ========================================================================== */

.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.resource-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.resource-link:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.resource-link__name {
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--accent-cyan);
}

.resource-link__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.cta-banner {
  background: linear-gradient(125deg, rgba(251, 146, 60, 0.16), rgba(253, 186, 116, 0.14));
  border: 1px solid rgba(253, 186, 116, 0.38);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-glow);
}

.cta-banner h2 {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
}

.cta-banner p {
  margin: 0 auto 24px;
  max-width: 660px;
  color: var(--text-secondary);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(4, 7, 16, 0.88);
  padding: 48px 0 32px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

.footer-col h3 {
  margin: 0 0 14px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.87rem;
  color: var(--text-muted);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Standalone Article Page Layout & Internal Jump Components
   ========================================================================== */

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 32px;
  padding: 44px 0 72px;
  align-items: start;
}

.article-main {
  background: var(--bg-surface-strong);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  backdrop-filter: blur(18px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.breadcrumb a:hover {
  color: var(--accent-cyan);
}

.article-header h1 {
  margin: 0 0 14px;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.3;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-size: 0.84rem;
  color: var(--text-muted);
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.tldr-box {
  background: rgba(253, 186, 116, 0.08);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin-bottom: 28px;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.tldr-box strong {
  color: var(--accent-cyan);
}

.article-body {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-body h2 {
  margin: 32px 0 14px;
  font-size: 1.35rem;
  color: var(--text-primary);
  border-left: 3px solid var(--accent-indigo);
  padding-left: 12px;
}

.article-body h3 {
  margin: 22px 0 10px;
  font-size: 1.12rem;
  color: var(--accent-cyan);
}

.article-body p {
  margin: 0 0 16px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 18px;
  padding-left: 22px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body a.inline-jump {
  color: var(--accent-cyan);
  border-bottom: 1px dashed rgba(253, 186, 116, 0.55);
  font-weight: 600;
}

.article-body a.inline-jump:hover {
  color: #ffedd5;
  border-bottom-style: solid;
}

.article-cta-box {
  margin: 30px 0;
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(251, 146, 60, 0.14), rgba(253, 186, 116, 0.12));
  border: 1px solid rgba(253, 186, 116, 0.36);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.article-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.pager-link {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(30, 41, 59, 0.52);
  border: 1px solid var(--border-subtle);
  transition: border-color 0.2s ease;
}

.pager-link:hover {
  border-color: var(--border-accent);
}

.pager-link span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.pager-link strong {
  font-size: 0.93rem;
  color: var(--text-primary);
}

.article-sidebar {
  position: sticky;
  top: 94px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sidebar-widget {
  background: var(--bg-surface-strong);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.sidebar-widget h3 {
  margin: 0 0 12px;
  font-size: 1rem;
  color: var(--text-primary);
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
}

.sidebar-list a {
  color: var(--text-secondary);
  display: block;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.18s ease, color 0.18s ease;
}

.sidebar-list a:hover,
.sidebar-list a.is-active {
  background: rgba(253, 186, 116, 0.14);
  color: var(--accent-cyan);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1120px) {
  .pricing-row {
    gap: 12px;
  }
  .plan-card {
    padding: 22px 16px;
  }
  .plan-amount {
    font-size: 1.9rem;
  }
}

@media (max-width: 980px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
  /* Keep pricing row in horizontal scroll on narrow tablets/phones OR 2x2 */
  .pricing-row {
    grid-template-columns: repeat(4, minmax(220px, 1fr));
    overflow-x: auto;
    padding-bottom: 12px;
  }
  .feature-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .resource-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .nav-links {
    display: none;
  }
  .mobile-nav {
    display: block;
    position: relative;
  }
  .mobile-nav summary {
    list-style: none;
    cursor: pointer;
    padding: 8px 13px;
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
    background: rgba(30, 41, 59, 0.7);
    font-size: 0.88rem;
    font-weight: 600;
  }
  .mobile-nav summary::-webkit-details-marker {
    display: none;
  }
  .mobile-nav__panel {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    width: 220px;
    background: rgba(11, 18, 34, 0.98);
    border: 1px solid var(--border-accent);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: var(--shadow-card);
  }
  .mobile-nav__panel a {
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.92rem;
    color: var(--text-secondary);
  }
  .mobile-nav__panel a:hover {
    background: rgba(253, 186, 116, 0.14);
    color: var(--accent-cyan);
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 42px 0 36px;
  }
  .section {
    padding: 54px 0;
  }
  .hero-metrics,
  .feature-grid,
  .articles-grid,
  .reviews-grid,
  .resource-grid,
  .footer-grid,
  .article-pager {
    grid-template-columns: 1fr;
  }
  .article-main {
    padding: 24px 20px;
  }
}