/* ==========================================================================
   ssrdog 网络加速服务推广网站 - 全站样式表 (Cloud Adventure Floating Island Theme)
   Palette:
     Base Deep Blue: #102039
     Cloud Blue:     #A9DFFF
     Warm Yellow:    #FFE39B
     Soft Lavender:  #C8B8F2
   ========================================================================== */

:root {
  --bg-primary: #102039;
  --bg-secondary: #162a4a;
  --bg-surface: #1c355c;
  --bg-card: rgba(28, 53, 92, 0.78);
  --bg-card-hover: rgba(36, 68, 115, 0.92);
  
  --cloud-blue: #A9DFFF;
  --cloud-blue-rgb: 169, 223, 255;
  --cloud-glow: rgba(169, 223, 255, 0.25);
  
  --warm-yellow: #FFE39B;
  --warm-yellow-rgb: 255, 227, 155;
  --yellow-hover: #ffcf6b;
  --yellow-dark: #e0b44a;
  
  --lavender-island: #C8B8F2;
  --lavender-rgb: 200, 184, 242;
  --lavender-glow: rgba(200, 184, 242, 0.22);
  --lavender-dark: #8e7ec2;
  
  --text-main: #FFFFFF;
  --text-sub: #E2ECF7;
  --text-muted: #9BB3CE;
  --text-dim: #7189A6;
  
  --border-subtle: rgba(169, 223, 255, 0.16);
  --border-island: rgba(200, 184, 242, 0.28);
  --border-gold: rgba(255, 227, 155, 0.45);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 28px rgba(169, 223, 255, 0.22);
  --shadow-gold: 0 0 25px rgba(255, 227, 155, 0.35);
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container-max: 1200px;
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-sub);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at 50% 0%, #1a365d 0%, #102039 55%, #0b172a 100%);
  background-attachment: fixed;
  color: var(--text-sub);
  overflow-x: hidden;
  position: relative;
}

/* Background Atmospheric Stars / Cloud Shimmer */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(1px 1px at 20px 30px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 140px 170px, rgba(169, 223, 255, 0.8), rgba(0,0,0,0)),
    radial-gradient(1px 1px at 260px 80px, #FFE39B, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 390px 240px, #C8B8F2, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 520px 120px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 700px 290px, rgba(169, 223, 255, 0.6), rgba(0,0,0,0)),
    radial-gradient(1px 1px at 850px 190px, #FFE39B, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 980px 70px, #C8B8F2, rgba(0,0,0,0));
  background-repeat: repeat;
  background-size: 1000px 400px;
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.3;
}

a {
  color: var(--cloud-blue);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--warm-yellow);
}

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

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

/* Accessible Focus Outline */
:focus-visible {
  outline: 3px solid var(--warm-yellow) !important;
  outline-offset: 3px !important;
  border-radius: 4px;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 1;
}

/* Skip link for Accessibility */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--warm-yellow);
  color: #102039;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 15px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(16, 32, 57, 0.88);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 8px var(--cloud-glow));
}

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

.brand-title {
  color: var(--warm-yellow);
  font-size: 1.25rem;
  line-height: 1.1;
  text-shadow: 0 0 12px rgba(255, 227, 155, 0.4);
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--cloud-blue);
  font-weight: 500;
  letter-spacing: 1px;
}

/* Desktop Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  color: var(--text-sub);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
  color: var(--warm-yellow);
  background: rgba(169, 223, 255, 0.08);
}

/* Header Action Buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-motion-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: rgba(169, 223, 255, 0.12);
  border: 1px solid var(--border-subtle);
  color: var(--cloud-blue);
  font-size: 0.85rem;
  transition: all var(--transition-normal);
}

.btn-motion-toggle:hover {
  background: rgba(169, 223, 255, 0.25);
  color: var(--warm-yellow);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #FFE39B 0%, #ffcf6b 100%);
  color: #102039;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 15px rgba(255, 227, 155, 0.35);
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FFF0B8 0%, #FFE39B 100%);
  color: #0b172a;
  box-shadow: 0 6px 20px rgba(255, 227, 155, 0.55);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(169, 223, 255, 0.12);
  color: var(--cloud-blue);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-secondary:hover {
  background: rgba(169, 223, 255, 0.22);
  color: #FFFFFF;
  border-color: var(--cloud-blue);
  transform: translateY(-2px);
}

/* Mobile Menu Toggle Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(169, 223, 255, 0.1);
  border: 1px solid var(--border-subtle);
  color: var(--cloud-blue);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--cloud-blue);
  margin: 2.5px 0;
  transition: all 0.3s;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer Overlay */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(16, 32, 57, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  z-index: 99;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
  border-top: 1px solid var(--border-subtle);
}

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

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-sub);
  border-radius: var(--radius-md);
  background: rgba(28, 53, 92, 0.6);
  border: 1px solid var(--border-subtle);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--warm-yellow);
  border-color: var(--warm-yellow);
  background: rgba(255, 227, 155, 0.1);
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 60px 0 90px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 40px;
}

.hero-content {
  position: relative;
  z-index: 5;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(200, 184, 242, 0.15);
  border: 1px solid var(--border-island);
  color: var(--lavender-island);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-badge .badge-icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title .highlight-yellow {
  color: var(--warm-yellow);
  text-shadow: 0 0 20px rgba(255, 227, 155, 0.35);
}

.hero-title .highlight-lavender {
  color: var(--lavender-island);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 560px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
}

.btn-airplane {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 184, 242, 0.18);
  color: var(--lavender-island);
  border: 1px solid var(--border-island);
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.btn-airplane:hover {
  background: rgba(200, 184, 242, 0.32);
  color: #FFFFFF;
  border-color: var(--lavender-island);
  transform: translateY(-2px);
  box-shadow: 0 0 15px var(--lavender-glow);
}

.btn-airplane .plane-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.3s;
}

.btn-airplane:hover .plane-icon {
  transform: translate(3px, -3px) rotate(-8deg);
}

.hero-trust-indicators {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-trust-item svg {
  width: 16px;
  height: 16px;
  fill: var(--cloud-blue);
}

/* ==========================================================================
   Hero Interactive Sky Theater (SVG Bird, Floating Islands, Drift Clouds, Plane)
   ========================================================================== */
.hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 13;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sky-theater {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at 60% 40%, rgba(36, 68, 115, 0.45) 0%, rgba(16, 32, 57, 0.7) 70%);
  border: 1px solid var(--border-subtle);
  box-shadow: inset 0 0 40px rgba(169, 223, 255, 0.08), 0 15px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden; /* Prevent horizontal overflow */
}

/* Drifting Clouds */
.cloud-drift-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  pointer-events: none;
  opacity: 0.65;
}

.cloud-drift-1 {
  animation: cloudDriftSlow 32s linear infinite;
}

.cloud-drift-2 {
  top: 40px;
  opacity: 0.45;
  animation: cloudDriftSlow 48s linear infinite reverse;
}

@keyframes cloudDriftSlow {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Floating Islands Layer */
.floating-islands-group {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Island 1: Main Floating Island */
.island-main {
  position: absolute;
  bottom: 18%;
  left: 20%;
  width: 58%;
  filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.45));
  animation: floatIslandOne 6s ease-in-out infinite;
  transform-origin: center bottom;
}

@keyframes floatIslandOne {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(0.8deg); }
}

/* Island 2: Mini Satellite Island (Top Right) */
.island-satellite-1 {
  position: absolute;
  top: 14%;
  right: 10%;
  width: 28%;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.35));
  animation: floatIslandTwo 4.8s ease-in-out infinite;
  transform-origin: center bottom;
}

@keyframes floatIslandTwo {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(-1.2deg); }
}

/* Island 3: Distant Cloud Reef (Bottom Left) */
.island-satellite-2 {
  position: absolute;
  bottom: 12%;
  left: 6%;
  width: 24%;
  filter: drop-shadow(0 8px 15px rgba(0, 0, 0, 0.3));
  animation: floatIslandThree 7.2s ease-in-out infinite;
  transform-origin: center bottom;
}

@keyframes floatIslandThree {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}

/* Circling Scout Bird */
.bird-flight-orbit {
  position: absolute;
  top: 22%;
  left: 32%;
  width: 140px;
  height: 110px;
  pointer-events: none;
  animation: birdOrbit 7s ease-in-out infinite;
}

@keyframes birdOrbit {
  0% {
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  25% {
    transform: translate(45px, -20px) scale(0.95) rotate(12deg);
  }
  50% {
    transform: translate(75px, 15px) scale(0.88) rotate(4deg);
  }
  75% {
    transform: translate(25px, 30px) scale(0.96) rotate(-10deg);
  }
  100% {
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
}

.scout-bird {
  width: 48px;
  height: 40px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.bird-wing-left {
  animation: flapLeft 0.35s ease-in-out infinite alternate;
  transform-origin: 20px 16px;
}

.bird-wing-right {
  animation: flapRight 0.35s ease-in-out infinite alternate;
  transform-origin: 28px 16px;
}

@keyframes flapLeft {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(-24deg); }
}

@keyframes flapRight {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(24deg); }
}

/* Paper Airplane Flight Arena */
.airplane-runway {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 20;
}

.paper-plane-flyer {
  position: absolute;
  bottom: 25%;
  left: 10%;
  width: 38px;
  height: 38px;
  opacity: 0;
  transform: translate(0, 0) scale(0.8) rotate(25deg);
  pointer-events: none;
  filter: drop-shadow(0 4px 10px rgba(255, 227, 155, 0.5));
}

/* Triggered Flight Animation: Swoops inside the Sky Theater cleanly */
.paper-plane-flyer.flying {
  animation: paperPlaneVoyage 2.6s cubic-bezier(0.2, 0.8, 0.25, 1) forwards;
}

@keyframes paperPlaneVoyage {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.6) rotate(15deg);
  }
  12% {
    opacity: 1;
    transform: translate(40px, -35px) scale(1.05) rotate(25deg);
  }
  45% {
    opacity: 1;
    transform: translate(180px, -110px) scale(1.1) rotate(10deg);
  }
  75% {
    opacity: 0.95;
    transform: translate(290px, -70px) scale(0.85) rotate(32deg);
  }
  100% {
    opacity: 0;
    transform: translate(370px, -120px) scale(0.5) rotate(20deg);
  }
}

/* Sky Status Toast */
.sky-status-pill {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: rgba(16, 32, 57, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 0.75rem;
  color: var(--cloud-blue);
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 15;
}

.sky-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
}

/* Animation Paused State */
.sky-motion-paused .cloud-drift-1,
.sky-motion-paused .cloud-drift-2,
.sky-motion-paused .island-main,
.sky-motion-paused .island-satellite-1,
.sky-motion-paused .island-satellite-2,
.sky-motion-paused .bird-flight-orbit,
.sky-motion-paused .bird-wing-left,
.sky-motion-paused .bird-wing-right {
  animation-play-state: paused !important;
}

.sky-motion-paused .sky-status-dot {
  background: #facc15;
  box-shadow: 0 0 8px #facc15;
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Section Header Utility
   ========================================================================== */
.section-block {
  padding: 80px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--warm-yellow);
  background: rgba(255, 227, 155, 0.12);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
}

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

/* ==========================================================================
   Section 1: 登岛路径 (购买步骤)
   ========================================================================== */
.landing-path-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}

.path-step-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-island);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.path-step-card:hover {
  transform: translateY(-6px);
  border-color: var(--warm-yellow);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), var(--shadow-gold);
}

.path-step-num {
  font-size: 2.8rem;
  font-weight: 900;
  color: rgba(200, 184, 242, 0.22);
  line-height: 1;
  margin-bottom: 16px;
  transition: color var(--transition-normal);
}

.path-step-card:hover .path-step-num {
  color: rgba(255, 227, 155, 0.4);
}

.path-step-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  color: var(--cloud-blue);
}

.path-step-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--text-main);
}

.path-step-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
}

/* ==========================================================================
   Section 2: 岛屿说明 (核心优势)
   ========================================================================== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.adv-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--lavender-island), var(--cloud-blue));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.adv-card:hover {
  transform: translateY(-5px);
  border-color: var(--cloud-blue);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35), var(--shadow-glow);
}

.adv-card:hover::before {
  opacity: 1;
}

.adv-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(169, 223, 255, 0.12);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--cloud-blue);
}

.adv-card:hover .adv-icon-box {
  background: rgba(255, 227, 155, 0.15);
  color: var(--warm-yellow);
  border-color: var(--border-gold);
}

.adv-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.adv-card p {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 16px;
}

.adv-features-list {
  list-style: none;
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.adv-features-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.adv-features-list li::before {
  content: "✦";
  color: var(--warm-yellow);
}

/* ==========================================================================
   Section 3: 航线图 (节点示意)
   ========================================================================== */
.routes-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-island);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.routes-visual-box {
  position: relative;
  background: rgba(16, 32, 57, 0.85);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 30px;
  margin-bottom: 30px;
}

.routes-map-svg {
  width: 100%;
  height: auto;
  max-height: 340px;
}

.routes-node-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.route-node-pill {
  background: rgba(28, 53, 92, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.route-node-info h4 {
  font-size: 1rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.route-node-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.route-status-tag {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: rgba(74, 222, 128, 0.15);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.routes-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(255, 227, 155, 0.08);
  border: 1px dashed var(--border-gold);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.86rem;
  color: var(--warm-yellow);
}

/* ==========================================================================
   Section 4: 场景岛 (AI与流媒体)
   ========================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.scenario-island-card {
  background: var(--bg-card);
  border: 1px solid var(--border-island);
  border-radius: var(--radius-xl);
  padding: 36px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.scenario-island-card:hover {
  transform: translateY(-5px);
  border-color: var(--lavender-island);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), var(--lavender-glow);
}

.scenario-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.scenario-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(200, 184, 242, 0.2);
  color: var(--lavender-island);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.scenario-island-card:nth-child(2) .scenario-icon {
  background: rgba(169, 223, 255, 0.2);
  color: var(--cloud-blue);
}

.scenario-header h3 {
  font-size: 1.4rem;
  color: var(--text-main);
}

.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.scenario-tag {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(169, 223, 255, 0.1);
  color: var(--cloud-blue);
  border: 1px solid var(--border-subtle);
}

.scenario-body p {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 20px;
}

.scenario-notice {
  background: rgba(16, 32, 57, 0.75);
  border-left: 3px solid var(--lavender-island);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Section 5: 登船方案 (套餐方案 4-5档)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card.featured {
  border-color: var(--warm-yellow);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 25px rgba(255, 227, 155, 0.2);
  transform: scale(1.02);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--cloud-blue);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.45);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
  border-color: var(--warm-yellow);
}

.pricing-badge-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FFE39B, #ffcf6b);
  color: #102039;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}

.pricing-plan-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 40px;
}

.pricing-price-box {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.price-value-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 4px;
  margin-bottom: 4px;
}

.price-currency {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--warm-yellow);
}

.price-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  letter-spacing: -0.5px;
}

.pricing-card.featured .price-number {
  color: var(--warm-yellow);
  text-shadow: 0 0 16px rgba(255, 227, 155, 0.4);
}

.price-cycle {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.price-discount-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #102039;
  background: linear-gradient(135deg, #FFE39B 0%, #ffcf6b 100%);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: 6px;
  vertical-align: middle;
}

.price-note {
  font-size: 0.8rem;
  color: var(--cloud-blue);
  margin-top: 8px;
  line-height: 1.4;
}

.price-pending {
  display: inline-block;
  background: rgba(255, 227, 155, 0.12);
  color: var(--warm-yellow);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-gold);
}

.pricing-features {
  list-style: none;
  font-size: 0.88rem;
  color: var(--text-sub);
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pricing-features .param-label {
  color: var(--text-muted);
}

.pricing-features .param-val {
  font-weight: 600;
  color: var(--cloud-blue);
}

.pricing-features .param-pending {
  color: var(--warm-yellow);
  font-size: 0.8rem;
  background: rgba(255, 227, 155, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.pricing-card .btn-primary,
.pricing-card .btn-secondary {
  width: 100%;
}

.pricing-bottom-notice {
  margin-top: 36px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section 6: 旅行明信片 (9篇文章入口，3/2/1列响应式)
   ========================================================================== */
.postcards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.postcard-item {
  background: var(--bg-card);
  border: 1px solid var(--border-island);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.postcard-item:hover {
  transform: translateY(-8px);
  border-color: var(--warm-yellow);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), 0 0 20px rgba(169, 223, 255, 0.2);
}

.postcard-stamp-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #172d50 0%, #1f3b68 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}

.postcard-cover-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.postcard-item:hover .postcard-cover-svg {
  transform: scale(1.06);
}

.postcard-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(16, 32, 57, 0.85);
  backdrop-filter: blur(8px);
  color: var(--warm-yellow);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-gold);
}

.postcard-readtime {
  position: absolute;
  bottom: 12px;
  right: 14px;
  background: rgba(16, 32, 57, 0.8);
  color: var(--cloud-blue);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.postcard-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.postcard-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 12px;
  transition: color var(--transition-normal);
}

.postcard-item:hover .postcard-title {
  color: var(--warm-yellow);
}

.postcard-snippet {
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.postcard-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

.postcard-read-more {
  color: var(--cloud-blue);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-normal);
}

.postcard-item:hover .postcard-read-more {
  gap: 8px;
  color: var(--warm-yellow);
}

/* ==========================================================================
   Section 7: 探险者日志 (评价 / 演示占位)
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testi-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testi-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(200, 184, 242, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lavender-island);
  font-weight: 800;
  border: 1px solid var(--border-island);
}

.testi-author h4 {
  font-size: 0.98rem;
  color: var(--text-main);
}

.testi-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.testi-badge-placeholder {
  font-size: 0.7rem;
  background: rgba(255, 227, 155, 0.12);
  color: var(--warm-yellow);
  border: 1px solid var(--border-gold);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: auto;
}

.testi-quote {
  font-size: 0.92rem;
  color: var(--text-sub);
  line-height: 1.65;
  font-style: italic;
  position: relative;
}

/* ==========================================================================
   Section 8: 常见疑问解答 (FAQ)
   ========================================================================== */
.faq-accordion-box {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.faq-item.active {
  border-color: var(--cloud-blue);
}

.faq-question-btn {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  transition: color var(--transition-normal);
}

.faq-question-btn:hover {
  color: var(--warm-yellow);
}

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

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
  color: var(--warm-yellow);
}

.faq-answer-pane {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.7;
}

.faq-item.active .faq-answer-pane {
  max-height: 500px;
  padding: 0 24px 22px 24px;
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer {
  background: #0c182c;
  border-top: 1px solid var(--border-subtle);
  padding: 70px 0 30px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 16px 0 20px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 18px;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--warm-yellow);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition-normal);
}

.footer-links a:hover {
  color: var(--warm-yellow);
  padding-left: 4px;
}

.footer-external-links a {
  color: var(--cloud-blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.footer-external-links a:hover {
  color: var(--warm-yellow);
}

.footer-notice-box {
  background: rgba(16, 32, 57, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 30px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(169, 223, 255, 0.08);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-legal-inline {
  display: flex;
  gap: 16px;
}

.footer-legal-inline a {
  color: var(--text-dim);
}

.footer-legal-inline a:hover {
  color: var(--cloud-blue);
}

/* ==========================================================================
   Article Page Specific Styles (Rich Typography, Breadcrumbs, Table, TOC)
   ========================================================================== */
.article-page-header {
  padding: 40px 0 30px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 40px;
}

.breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb-nav a {
  color: var(--text-muted);
}

.breadcrumb-nav a:hover {
  color: var(--warm-yellow);
}

.breadcrumb-separator {
  color: var(--text-dim);
}

.article-header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-main-title {
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 20px;
}

.article-lead-box {
  background: rgba(28, 53, 92, 0.6);
  border-left: 4px solid var(--warm-yellow);
  padding: 18px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.05rem;
  color: var(--text-sub);
  line-height: 1.7;
}

/* Article Body Content */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.article-layout.fullwidth {
  grid-template-columns: 1fr;
}

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

.article-body h2 {
  font-size: 1.65rem;
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--warm-yellow);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-body h3 {
  font-size: 1.25rem;
  margin: 28px 0 14px;
  color: var(--cloud-blue);
}

.article-body p {
  margin-bottom: 20px;
  text-align: justify;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-body li {
  line-height: 1.75;
}

.article-body blockquote {
  background: rgba(16, 32, 57, 0.7);
  border-left: 4px solid var(--lavender-island);
  padding: 16px 22px;
  margin: 24px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-sub);
  font-style: italic;
}

/* Comparison Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

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

.article-table th {
  background: rgba(28, 53, 92, 0.9);
  color: var(--warm-yellow);
  padding: 14px 18px;
  font-weight: 700;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.article-table td {
  padding: 12px 18px;
  border-bottom: 1px solid rgba(169, 223, 255, 0.08);
  color: var(--text-sub);
}

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

.article-table tr:hover td {
  background: rgba(169, 223, 255, 0.05);
}

/* Code Snippets & Terminal Blocks */
.code-block-container {
  margin: 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #0d1a2f;
}

.code-block-header {
  background: #152744;
  padding: 8px 16px;
  font-size: 0.8rem;
  color: var(--cloud-blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.code-block-body {
  padding: 16px 20px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  color: #e2ecf7;
}

/* Callout Info / Warning Boxes */
.callout-box {
  padding: 18px 22px;
  border-radius: var(--radius-md);
  margin: 26px 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 0.95rem;
}

.callout-info {
  background: rgba(169, 223, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-sub);
}

.callout-warning {
  background: rgba(255, 227, 155, 0.08);
  border: 1px solid var(--border-gold);
  color: var(--text-sub);
}

/* In-Article Action CTA Banner */
.article-cta-box {
  margin: 50px 0 30px;
  background: radial-gradient(circle at top right, rgba(200, 184, 242, 0.25), rgba(28, 53, 92, 0.85));
  border: 1px solid var(--border-island);
  border-radius: var(--radius-xl);
  padding: 36px;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.6rem;
  color: var(--warm-yellow);
  margin-bottom: 10px;
}

.article-cta-box p {
  color: var(--text-sub);
  margin-bottom: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Related Articles Grid */
.related-posts-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-subtle);
}

.related-posts-title {
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 24px;
}

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

/* Sidebar / Table of Contents */
.article-sidebar {
  position: sticky;
  top: 96px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-widget h4 {
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
}

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

.toc-list a {
  color: var(--text-muted);
  display: block;
}

.toc-list a:hover {
  color: var(--warm-yellow);
}

/* ==========================================================================
   Responsive Breakpoints: 1024px, 768px, 430px, 390px, 375px
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .hero-trust-indicators {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .landing-path-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
  
  .postcards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .routes-node-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  
  .article-layout {
    grid-template-columns: 1fr;
  }
  
  .article-sidebar {
    display: none;
  }
  
  .related-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .postcards-grid {
    grid-template-columns: 1fr;
  }
  
  .related-posts-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
  
  .footer-legal-inline {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .landing-path-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .routes-node-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 1.85rem;
  }
  
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-airplane {
    width: 100%;
    justify-content: center;
  }
  
  .routes-wrapper {
    padding: 20px 16px;
  }
  
  .scenario-island-card {
    padding: 24px 18px;
  }
}