/* ========================================================
   TNTCloud.lol - UI Framework 33 | 聚光灯登场 (Spotlight Reveal)
   Theme Palette & Component Stylesheet
   ======================================================== */

:root {
  --color-hero-bg: #080F21;
  --color-deep-blue: #102443;
  --color-spotlight-blue: #4AA3FF;
  --color-tech-purple: #8868F8;
  --color-ice-blue: #DDF2FF;
  --color-content-bg: #FFFFFF;
  --color-light-gray-bg: #F5F8FC;
  --color-border-light: #E2E8F0;
  --color-text-main: #20344F;
  --color-text-muted: #5B6E88;
  --color-text-light: #94A3B8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 2px 8px rgba(16, 36, 67, 0.04);
  --shadow-md: 0 8px 24px rgba(16, 36, 67, 0.08);
  --shadow-lg: 0 16px 40px rgba(16, 36, 67, 0.12);
  --shadow-spotlight: 0 0 50px rgba(74, 163, 255, 0.25);
  --max-width: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-content-bg);
  scroll-behavior: smooth;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-color: var(--color-content-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

/* ========================================================
   Header & Navigation
   ======================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(16, 36, 67, 0.08);
  box-shadow: 0 4px 20px rgba(16, 36, 67, 0.06);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 38px;
  width: auto;
}

.logo-dark {
  display: none;
}

.site-header.scrolled .logo-white {
  display: none;
}
.site-header.scrolled .logo-dark {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-spotlight-blue);
  transition: width 0.25s ease;
}

.nav-link:hover {
  color: var(--color-spotlight-blue);
}

.nav-link:hover::after {
  width: 100%;
}

.site-header.scrolled .nav-link {
  color: var(--color-text-main);
}
.site-header.scrolled .nav-link:hover {
  color: #2563EB;
}
.site-header.scrolled .nav-link::after {
  background: #2563EB;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-cta-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.35rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--color-spotlight-blue), var(--color-tech-purple));
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(74, 163, 255, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-cta-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(74, 163, 255, 0.5);
}

.btn-mobile-toggle {
  display: none;
  background: transparent;
  padding: 0.5rem;
  color: #FFFFFF;
}

.site-header.scrolled .btn-mobile-toggle {
  color: var(--color-text-main);
}

/* Mobile Drawer Menu */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 65px;
  left: 0;
  width: 100%;
  background: rgba(8, 15, 33, 0.98);
  backdrop-filter: blur(16px);
  padding: 1.5rem;
  border-bottom: 1px solid rgba(74, 163, 255, 0.2);
  flex-direction: column;
  gap: 1rem;
  z-index: 999;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-nav-link {
  color: #FFFFFF;
  font-size: 1.05rem;
  font-weight: 500;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* ========================================================
   UI 33 | 聚光灯登场 (Spotlight Reveal) Hero Section
   ======================================================== */
.spotlight-hero {
  position: relative;
  background-color: var(--color-hero-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 7rem 1.5rem 4rem;
  overflow: hidden;
  text-align: center;
}

/* Background Subtle Tech Grid */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 20%, rgba(74, 163, 255, 0.12) 0%, transparent 60%),
    linear-gradient(rgba(16, 36, 67, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 36, 67, 0.25) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  background-position: center top, center center, center center;
  pointer-events: none;
}

/* Dynamic Spotlight Beam Element */
.spotlight-cone {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at 50% 15%, rgba(74, 163, 255, 0.45) 0%, rgba(136, 104, 248, 0.25) 35%, rgba(8, 15, 33, 0) 70%);
  filter: blur(40px);
  pointer-events: none;
  opacity: 0;
  animation: spotlightExpand 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
}

/* Secondary Ambient Glow */
.spotlight-ambient {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 350px;
  background: radial-gradient(circle, rgba(74, 163, 255, 0.15) 0%, rgba(8, 15, 33, 0) 70%);
  pointer-events: none;
  opacity: 0;
  animation: ambientFadeIn 1.5s ease 1.2s forwards;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 840px;
  margin: 0 auto;
}

/* Spotlight LOGO Stage */
.spotlight-logo-stage {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spotlight-logo-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  filter: blur(12px) brightness(0.2);
  transform: translateX(-60px);
  animation: 
    logoDarkEntry 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards,
    logoIllumination 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards,
    logoSubtleFloat 4.5s ease-in-out 2.0s infinite alternate;
}

.spotlight-logo-svg {
  width: 110px;
  height: 110px;
  filter: drop-shadow(0 0 0 rgba(74, 163, 255, 0));
  transition: filter 0.8s ease;
}

.spotlight-brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.1rem;
  border-radius: 9999px;
  background: rgba(16, 36, 67, 0.7);
  border: 1px solid rgba(74, 163, 255, 0.35);
  color: var(--color-ice-blue);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(12px);
  animation: elementFadeInUp 0.7s ease 1.2s forwards;
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 10px #10B981;
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(18px);
  animation: elementFadeInUp 0.8s ease 1.4s forwards;
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, #FFFFFF 20%, var(--color-spotlight-blue) 70%, var(--color-tech-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.7;
  color: #CBD5E1;
  max-width: 680px;
  margin: 0 auto 2.25rem;
  opacity: 0;
  transform: translateY(18px);
  animation: elementFadeInUp 0.8s ease 1.6s forwards;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  opacity: 0;
  transform: translateY(18px);
  animation: elementFadeInUp 0.8s ease 1.8s forwards;
}

.btn-primary-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2.2rem;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--color-spotlight-blue), var(--color-tech-purple));
  color: #FFFFFF;
  box-shadow: 0 0 25px rgba(74, 163, 255, 0.45);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(74, 163, 255, 0.7);
}

.btn-secondary-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  transition: var(--transition-smooth);
}

.btn-secondary-hero:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--color-spotlight-blue);
}

/* Scroll Hint */
.scroll-indicator {
  position: absolute;
  bottom: 1.8rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  opacity: 0;
  animation: elementFadeIn 1s ease 2.2s forwards;
  cursor: pointer;
}

.scroll-mouse {
  width: 22px;
  height: 34px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 12px;
  position: relative;
}

.scroll-wheel {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 7px;
  background: var(--color-spotlight-blue);
  border-radius: 2px;
  animation: mouseWheel 1.8s infinite;
}

/* Spotlight Animations Keyframes */
@keyframes logoDarkEntry {
  0% {
    opacity: 0;
    filter: blur(14px) brightness(0.15);
    transform: translateX(-70px);
  }
  100% {
    opacity: 0.35;
    filter: blur(8px) brightness(0.4);
    transform: translateX(0);
  }
}

@keyframes logoIllumination {
  0% {
    opacity: 0.35;
    filter: blur(8px) brightness(0.4);
  }
  70% {
    opacity: 1;
    filter: blur(0px) brightness(1.2) drop-shadow(0 0 30px rgba(74, 163, 255, 0.8));
  }
  100% {
    opacity: 1;
    filter: blur(0px) brightness(1) drop-shadow(0 0 20px rgba(74, 163, 255, 0.5));
  }
}

@keyframes logoSubtleFloat {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-8px);
  }
}

@keyframes spotlightExpand {
  0% {
    opacity: 0;
    transform: translateX(-50%) scale(0.4);
  }
  50% {
    opacity: 0.8;
  }
  100% {
    opacity: 0.65;
    transform: translateX(-50%) scale(1);
  }
}

@keyframes ambientFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes elementFadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes elementFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes mouseWheel {
  0% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 14px); }
}

/* ========================================================
   Common Section Layout
   ======================================================== */
.section {
  padding: 5.5rem 1.5rem;
}

.section-alt {
  background-color: var(--color-light-gray-bg);
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  background: rgba(74, 163, 255, 0.12);
  color: #2563EB;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.85rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-deep-blue);
  line-height: 1.3;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ========================================================
   03 | Core Advantages (4 Alternating Large Modules)
   ======================================================== */
.advantages-list {
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
}

.advantage-item {
  display: flex;
  align-items: center;
  gap: 3.5rem;
}

.advantage-item:nth-child(even) {
  flex-direction: row-reverse;
}

.advantage-visual {
  flex: 1;
  background: linear-gradient(135deg, #FFFFFF, var(--color-light-gray-bg));
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.advantage-visual::before {
  content: "";
  position: absolute;
  top: -30%;
  left: -30%;
  width: 160%;
  height: 160%;
  background: radial-gradient(circle at 30% 30%, rgba(74, 163, 255, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.advantage-icon-wrapper {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(74, 163, 255, 0.15), rgba(136, 104, 248, 0.15));
  border: 1px solid rgba(74, 163, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #2563EB;
}

.advantage-content {
  flex: 1.1;
}

.advantage-pill {
  font-size: 0.85rem;
  font-weight: 700;
  color: #2563EB;
  margin-bottom: 0.5rem;
  display: block;
}

.advantage-heading {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-deep-blue);
  margin-bottom: 1rem;
  line-height: 1.35;
}

.advantage-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.advantage-points {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.advantage-point {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.point-icon {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
  color: #10B981;
}

.advantage-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #2563EB;
}

.advantage-link:hover {
  gap: 0.65rem;
  color: #1D4ED8;
}

/* ========================================================
   04 | Scenarios Interactive Spotlight Tabs
   ======================================================== */
.scenarios-tabs-wrapper {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
}

.scenarios-tabs-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 1.25rem;
}

.scenario-tab-btn {
  background: var(--color-light-gray-bg);
  border: 1px solid transparent;
  padding: 0.85rem 0.6rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.scenario-tab-btn:hover {
  background: #EFF6FF;
  color: #2563EB;
}

.scenario-tab-btn.active {
  background: #FFFFFF;
  color: #2563EB;
  border-color: #BFDBFE;
  box-shadow: 0 4px 16px rgba(74, 163, 255, 0.2);
  transform: translateY(-2px);
}

.scenario-tab-icon {
  width: 24px;
  height: 24px;
}

.scenario-panels {
  min-height: 280px;
}

.scenario-panel {
  display: none;
  animation: fadeIn 0.35s ease;
}

.scenario-panel.active {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
}

.scenario-main-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 0.85rem;
}

.scenario-summary {
  font-size: 1rem;
  color: var(--color-text-main);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.scenario-meta-box {
  background: var(--color-light-gray-bg);
  border-radius: 14px;
  padding: 1.5rem;
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #2563EB;
  text-transform: uppercase;
}

.meta-value {
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.scenario-disclaimer {
  grid-column: 1 / -1;
  font-size: 0.82rem;
  color: var(--color-text-light);
  background: #F8FAFC;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border-left: 3px solid #94A3B8;
  margin-top: 1rem;
}

/* ========================================================
   05 | Pricing Cards Section
   ======================================================== */
.pricing-notice-box {
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  color: #92400E;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.notice-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.pricing-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-spotlight);
  border-color: #BFDBFE;
}

.pricing-card.featured {
  border: 2px solid #2563EB;
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.15);
}

.pricing-ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-spotlight-blue), var(--color-tech-purple));
  color: #FFFFFF;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.9rem;
  border-radius: 9999px;
  box-shadow: 0 4px 10px rgba(74, 163, 255, 0.4);
}

.pricing-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.pricing-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 0.5rem;
}

.pricing-audience {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  min-height: 40px;
}

.pricing-cost {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin: 1.25rem 0 0.5rem;
}

.currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-deep-blue);
}

.amount {
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-deep-blue);
  line-height: 1;
}

.period {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.traffic-badge {
  display: inline-block;
  background: #EFF6FF;
  color: #2563EB;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.traffic-subnote {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-bottom: 1.25rem;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-main);
  line-height: 1.45;
}

.feature-icon {
  width: 16px;
  height: 16px;
  color: #2563EB;
  flex-shrink: 0;
  margin-top: 3px;
}

.btn-pricing {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: center;
  transition: var(--transition-smooth);
}

.btn-pricing-primary {
  background: linear-gradient(135deg, var(--color-spotlight-blue), var(--color-tech-purple));
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(74, 163, 255, 0.35);
}

.btn-pricing-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74, 163, 255, 0.5);
}

.btn-pricing-outline {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  color: var(--color-deep-blue);
}

.btn-pricing-outline:hover {
  border-color: #2563EB;
  color: #2563EB;
  background: #EFF6FF;
}

.pricing-compare-note {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 1.5rem;
}

.compare-note-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 0.75rem;
}

.compare-note-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  list-style: none;
}

.compare-note-item {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-light-gray-bg);
  padding: 0.75rem 1rem;
  border-radius: 8px;
}

.compare-note-item strong {
  color: var(--color-text-main);
  display: block;
  margin-bottom: 0.25rem;
}

/* ========================================================
   06 | Knowledge Base (6 SEO Articles Preview)
   ======================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 16px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #BFDBFE;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.article-category {
  background: #EFF6FF;
  color: #2563EB;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  line-height: 1.45;
  margin-bottom: 0.75rem;
}

.article-title a:hover {
  color: #2563EB;
}

.article-summary {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-light);
}

.article-read-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: #2563EB;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.article-read-link:hover {
  gap: 0.55rem;
}

.article-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ========================================================
   07 | User Reviews (Honest Feedback Module)
   ======================================================== */
.reviews-disclaimer-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-spotlight-blue);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.review-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.review-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #BFDBFE;
}

.review-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #EFF6FF;
  color: #2563EB;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.review-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 0.75rem;
}

.review-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.btn-feedback-action {
  background: var(--color-light-gray-bg);
  color: #2563EB;
  border: 1px solid #BFDBFE;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  transition: var(--transition-smooth);
}

.btn-feedback-action:hover {
  background: #2563EB;
  color: #FFFFFF;
}

/* ========================================================
   08 | FAQ Section (Accordion)
   ======================================================== */
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item.active {
  border-color: #93C5FD;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.faq-question-btn {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  cursor: pointer;
}

.faq-question-btn:hover {
  color: #2563EB;
}

.faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--color-text-light);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  color: #2563EB;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem;
}

.faq-answer-inner {
  font-size: 0.95rem;
  color: var(--color-text-main);
  line-height: 1.7;
  border-top: 1px dashed var(--color-border-light);
  padding-top: 1rem;
}

/* ========================================================
   09 | Footer
   ======================================================== */
.site-footer {
  background-color: var(--color-hero-bg);
  color: #94A3B8;
  padding: 5rem 1.5rem 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #94A3B8;
  margin-top: 1rem;
  max-width: 340px;
}

.footer-heading {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.88rem;
  color: #94A3B8;
}

.footer-link:hover {
  color: var(--color-spotlight-blue);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #64748B;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

/* ========================================================
   Single Article Detail Page Styles
   ======================================================== */
.article-header-hero {
  background: var(--color-hero-bg);
  color: #FFFFFF;
  padding: 8rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.article-breadcrumbs {
  max-width: 860px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #94A3B8;
}

.breadcrumb-separator {
  color: #64748B;
}

.breadcrumb-item a:hover {
  color: var(--color-spotlight-blue);
}

.article-hero-title {
  max-width: 860px;
  margin: 0 auto 1.25rem;
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.3;
}

.article-meta-bar {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: #94A3B8;
}

.article-main-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3.5rem;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-text-main);
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--color-deep-blue);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #E2E8F0;
  scroll-margin-top: 90px;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin: 1.8rem 0 0.75rem;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

/* GEO Direct Answer Highlight Box */
.geo-direct-box {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-left: 4px solid #10B981;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.geo-direct-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #047857;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.geo-direct-text {
  font-size: 1.02rem;
  color: #064E3B;
  line-height: 1.7;
}

/* Comparison Table in Article */
.article-table-wrapper {
  overflow-x: auto;
  margin: 1.8rem 0 2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border-light);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

.article-table th {
  background: var(--color-light-gray-bg);
  padding: 0.85rem 1rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  border-bottom: 1px solid var(--color-border-light);
}

.article-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid #F1F5F9;
  color: var(--color-text-main);
}

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

.article-table caption {
  caption-side: bottom;
  text-align: right;
  font-size: 0.8rem;
  color: var(--color-text-light);
  padding: 0.5rem 0.5rem 0;
}

/* Article Internal CTA Banner */
.article-cta-box {
  background: linear-gradient(135deg, var(--color-deep-blue), #0C1E38);
  border-radius: 16px;
  padding: 2rem;
  color: #FFFFFF;
  margin: 3rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.article-cta-info h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.article-cta-info p {
  font-size: 0.92rem;
  color: #94A3B8;
  margin-bottom: 0;
}

/* Sticky Sidebar Table of Contents */
.article-sidebar {
  position: relative;
}

.sidebar-sticky-box {
  position: sticky;
  top: 90px;
  background: #FFFFFF;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.toc-link {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  display: block;
}

.toc-link:hover, .toc-link.active {
  color: #2563EB;
  font-weight: 600;
}

/* Related Articles Section */
.related-articles-section {
  background: var(--color-light-gray-bg);
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

/* ========================================================
   Interactive Modal (Feedback Form)
   ======================================================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 15, 33, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: #FFFFFF;
  border-radius: 20px;
  max-width: 500px;
  width: 100%;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: modalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: #F1F5F9;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748B;
  cursor: pointer;
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-deep-blue);
  margin-bottom: 0.5rem;
}

.modal-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.35rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--color-border-light);
  font-family: inherit;
  font-size: 0.9rem;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.btn-submit-feedback {
  width: 100%;
  padding: 0.75rem;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-spotlight-blue), var(--color-tech-purple));
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* ========================================================
   Responsive Breakpoints
   360px, 390px, 768px, 1024px, 1440px
   ======================================================== */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.35rem;
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    grid-column: 1 / -1;
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-main-container {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    display: none;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links, .header-actions .btn-cta-nav {
    display: none;
  }
  .btn-mobile-toggle {
    display: block;
  }
  .spotlight-hero {
    padding: 6rem 1rem 3.5rem;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary-hero, .btn-secondary-hero {
    width: 100%;
    justify-content: center;
  }
  .advantage-item, .advantage-item:nth-child(even) {
    flex-direction: column;
    gap: 1.75rem;
  }
  .scenarios-tabs-nav {
    grid-template-columns: repeat(3, 1fr);
  }
  .scenario-panel.active {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .compare-note-list {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .article-cta-box {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 390px) {
  .scenarios-tabs-nav {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title {
    font-size: 1.6rem;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .spotlight-logo-stage {
    width: 110px;
    height: 110px;
    margin-bottom: 1.8rem;
  }
  .spotlight-logo-svg {
    width: 85px;
    height: 85px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .spotlight-logo-wrapper, .spotlight-cone, .hero-title, .hero-subtitle, .hero-actions, .spotlight-brand-pill {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}