/* ==========================================================================
   像素鸭闯关商城 - 全局样式表 (PIXEL DUCK ARCADE THEME)
   配色系统:
   - 背景底色: #0B0F20 (深邃街机暗夜蓝)
   - 主色调黄: #FFDF00 (像素街机亮黄)
   - 活力荧绿: #00EA4F (通关能量绿)
   - 街机霓粉: #FF0054 (生命值粉红)
   - 表面卡片: #141A33
   - 边框反光: #2A3660
   - 纯白高光: #FFFFFF
   - 像素投影: 4px 4px 0 #000000
   ========================================================================== */

:root {
  --bg-color: #0B0F20;
  --bg-surface: #141A33;
  --bg-card: #18203E;
  --bg-card-alt: #1F2A52;
  --text-main: #FFFFFF;
  --text-muted: #A5B3D6;
  --text-dim: #6B7B9E;
  
  --color-yellow: #FFDF00;
  --color-green: #00EA4F;
  --color-pink: #FF0054;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --border-light: #2E3B68;
  
  --shadow-pixel: 4px 4px 0 #000000;
  --shadow-pixel-sm: 2px 2px 0 #000000;
  --shadow-pixel-lg: 6px 6px 0 #000000;
  --shadow-yellow: 4px 4px 0 #FFDF00;
  --shadow-green: 4px 4px 0 #00EA4F;
  --shadow-pink: 4px 4px 0 #FF0054;
  
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace, sans-serif;
  --font-arcade: "Courier New", Courier, monospace;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-stack);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  /* 像素网格轻量底纹 */
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

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

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

ul, ol {
  list-style: none;
}

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

/* 布局容器 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 像素风格标题与徽标 */
.pixel-badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  background-color: var(--color-pink);
  color: var(--color-white);
  border: 2px solid var(--color-black);
  box-shadow: var(--shadow-pixel-sm);
  margin-bottom: 12px;
}

.pixel-badge.green {
  background-color: var(--color-green);
  color: var(--color-black);
}

.pixel-badge.yellow {
  background-color: var(--color-yellow);
  color: var(--color-black);
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-yellow);
  text-shadow: 2px 2px 0 #000000;
  letter-spacing: 1px;
  display: inline-block;
  position: relative;
  margin-bottom: 12px;
}

.section-title::after {
  content: "";
  display: block;
  width: 60%;
  height: 4px;
  background-color: var(--color-green);
  margin: 8px auto 0;
  box-shadow: var(--shadow-pixel-sm);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

/* 像素方角硬朗卡片 */
.pixel-card {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  border-radius: 0 !important;
  box-shadow: var(--shadow-pixel);
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.pixel-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-pixel-lg);
  border-color: var(--color-yellow);
}

/* 像素按钮核心规范 */
.pixel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 800;
  text-align: center;
  background-color: var(--color-yellow);
  color: var(--color-black);
  border: 2px solid var(--color-white);
  border-radius: 0 !important;
  box-shadow: var(--shadow-pixel);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.pixel-btn:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-pixel-sm);
  background-color: #ffe633;
}

.pixel-btn:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.pixel-btn.btn-green {
  background-color: var(--color-green);
  color: var(--color-black);
}

.pixel-btn.btn-pink {
  background-color: var(--color-pink);
  color: var(--color-white);
}

.pixel-btn.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.pixel-btn.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-yellow);
  border-color: var(--color-yellow);
}

.pixel-btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
  border-width: 2px;
}

/* ==========================================================================
   HEADER 导航栏
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(11, 15, 32, 0.96);
  border-bottom: 2px solid var(--border-light);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 34px !important;
  height: 34px !important;
  min-width: 34px;
  min-height: 34px;
  max-width: 34px;
  max-height: 34px;
  image-rendering: pixelated;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.brand-text {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--color-yellow);
  text-shadow: 2px 2px 0 #000;
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 6px;
  background: var(--color-pink);
  color: var(--color-white);
  border: 1px solid #000;
  vertical-align: middle;
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--color-yellow);
  border-color: var(--color-yellow);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 汉堡按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 38px;
  height: 38px;
  padding: 6px;
  background-color: var(--bg-surface);
  border: 2px solid var(--color-white);
  box-shadow: var(--shadow-pixel-sm);
}

.menu-toggle .bar {
  width: 100%;
  height: 3px;
  background-color: var(--color-yellow);
  transition: transform 0.2s, opacity 0.2s;
}

/* 动效控制按钮 */
.motion-toggle-btn {
  background-color: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-light);
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.motion-toggle-btn:hover {
  background-color: var(--bg-surface);
  color: var(--color-yellow);
  border-color: var(--color-yellow);
}

/* ==========================================================================
   绿色公告传送带 TICKER
   ========================================================================== */
.announcement-ticker {
  background-color: var(--color-green);
  color: var(--color-black);
  border-bottom: 2px solid var(--color-black);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 8px 0;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
}

.ticker-label {
  flex-shrink: 0;
  background: var(--color-black);
  color: var(--color-yellow);
  padding: 2px 10px;
  margin-left: 20px;
  font-size: 0.75rem;
  letter-spacing: 1px;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.3);
  z-index: 2;
}

.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: tickerScroll 28s linear infinite;
}

.ticker-content {
  display: inline-flex;
  align-items: center;
  gap: 40px;
  padding-left: 40px;
}

.ticker-track:hover {
  animation-play-state: paused;
}

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

/* ==========================================================================
   HERO 区域 (左文右景 + 像素小鸭)
   ========================================================================== */
.hero-section {
  padding: 60px 0 40px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-title {
  font-size: 2.8rem;
  line-height: 1.2;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title .highlight {
  color: var(--color-yellow);
  text-shadow: 3px 3px 0 var(--color-black);
  display: inline-block;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
}

.hero-feature-icon {
  color: var(--color-green);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-interactive-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 12px;
}

.jump-btn-duck {
  background-color: var(--color-pink);
  color: var(--color-white);
  border: 2px solid var(--color-white);
  box-shadow: var(--shadow-pixel);
  font-weight: 800;
  padding: 8px 16px;
  font-size: 0.9rem;
}

.jump-btn-duck:hover {
  background-color: #ff2a73;
}

.jump-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ==========================================================================
   右侧街机像素场景 (STAGE 01 - SKY LEVEL)
   ========================================================================== */
.arcade-stage-wrapper {
  position: relative;
  width: 100%;
}

.arcade-stage-frame {
  background-color: #050811;
  border: 4px solid var(--color-white);
  box-shadow: 8px 8px 0 #000000;
  overflow: hidden;
  position: relative;
}

.stage-header-bar {
  background-color: var(--bg-card-alt);
  border-bottom: 2px solid var(--color-white);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-arcade);
  font-size: 0.8rem;
  color: var(--color-yellow);
  font-weight: 700;
}

.stage-lights {
  display: flex;
  gap: 6px;
}

.stage-light {
  width: 10px;
  height: 10px;
  border: 1px solid #000;
}

.stage-light.red { background-color: var(--color-pink); }
.stage-light.yellow { background-color: var(--color-yellow); }
.stage-light.green { background-color: var(--color-green); }

.arcade-viewport {
  height: 380px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #0B132B 0%, #1C2541 60%, #3A4066 100%);
}

/* 远景与近景砖柱（视差横移） */
.parallax-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  pointer-events: none;
}

/* 背景砖块（慢移） */
.bricks-bg {
  background-image: 
    radial-gradient(#2E3B68 2px, transparent 2px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px, 60px 60px;
  animation: bricksBgDrift 30s linear infinite;
  opacity: 0.6;
}

/* 前景砖块与立柱（稍快横移） */
.bricks-fg {
  display: flex;
  justify-content: space-around;
  height: 100%;
  animation: bricksFgDrift 14s linear infinite;
}

.brick-pillar {
  width: 48px;
  height: 100%;
  position: relative;
}

.pillar-top {
  position: absolute;
  top: 0;
  width: 48px;
  height: 90px;
  background: repeating-linear-gradient(
    0deg,
    #4D5882,
    #4D5882 14px,
    #2E3758 14px,
    #2E3758 16px
  );
  border: 2px solid #000;
  border-top: none;
}

.pillar-bottom {
  position: absolute;
  bottom: 50px;
  width: 48px;
  height: 110px;
  background: repeating-linear-gradient(
    0deg,
    #4D5882,
    #4D5882 14px,
    #2E3758 14px,
    #2E3758 16px
  );
  border: 2px solid #000;
  border-bottom: none;
}

.pillar-gold-block {
  position: absolute;
  width: 28px;
  height: 28px;
  background-color: var(--color-yellow);
  border: 2px solid #000;
  box-shadow: inset -2px -2px 0 #A89200, inset 2px 2px 0 #FFF;
  top: 130px;
  left: 10px;
}

/* 底部低矮像素城市剪影 */
.pixel-city-silhouette {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 52px;
  background-color: #060914;
  clip-path: polygon(
    0% 100%, 0% 50%, 4% 50%, 4% 30%, 8% 30%, 8% 50%, 14% 50%, 14% 20%, 19% 20%, 19% 45%, 
    25% 45%, 25% 60%, 32% 60%, 32% 25%, 38% 25%, 38% 55%, 46% 55%, 46% 15%, 52% 15%, 52% 50%, 
    60% 50%, 60% 35%, 67% 35%, 67% 55%, 75% 55%, 75% 10%, 82% 10%, 82% 45%, 90% 45%, 90% 30%, 
    96% 30%, 96% 60%, 100% 60%, 100% 100%
  );
  z-index: 10;
  border-top: 2px solid #202A4A;
}

/* 像素鸭角色与动画容器 */
.duck-stage-actor {
  position: absolute;
  top: 45%;
  left: 22%;
  transform: translateY(-50%);
  z-index: 20;
  animation: duckFloat 3.2s ease-in-out infinite;
  transition: transform 0.1s linear;
}

.pixel-duck-svg {
  width: 72px !important;
  height: 72px !important;
  min-width: 72px;
  min-height: 72px;
  max-width: 72px;
  max-height: 72px;
  display: block;
  image-rendering: pixelated;
  filter: drop-shadow(3px 3px 0 #000);
}

/* 小鸭翅膀切换两种姿态 steps(2) */
.duck-wing {
  transform-origin: 12px 18px;
  animation: duckWingFlap 0.5s steps(2) infinite;
}

@keyframes duckWingFlap {
  0% { transform: translateY(0); }
  50% { transform: translateY(-4px) rotate(-8deg); }
  100% { transform: translateY(0); }
}

@keyframes duckFloat {
  0%, 100% { transform: translateY(-50%); }
  50% { transform: translateY(-70%); }
}

/* 跳跃状态 */
.duck-stage-actor.is-jumping {
  animation: duckJumpAction 0.65s cubic-bezier(0.2, 0.9, 0.4, 1.2) !important;
}

@keyframes duckJumpAction {
  0% { transform: translateY(-50%) scale(1, 0.85); }
  25% { transform: translateY(-115%) scale(0.9, 1.15); }
  55% { transform: translateY(-130%) scale(1, 1); }
  85% { transform: translateY(-45%) scale(1.1, 0.9); }
  100% { transform: translateY(-50%) scale(1, 1); }
}

/* 装饰跳跃金币特效 */
.pixel-coin-spawn {
  position: absolute;
  top: 35%;
  left: 25%;
  font-family: var(--font-arcade);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-yellow);
  text-shadow: 2px 2px 0 #000;
  pointer-events: none;
  z-index: 30;
  animation: coinFloatUp 0.8s ease-out forwards;
}

@keyframes coinFloatUp {
  0% { transform: translate(0, 0) scale(0.6); opacity: 1; }
  60% { transform: translate(10px, -45px) scale(1.2); opacity: 1; }
  100% { transform: translate(15px, -70px) scale(1); opacity: 0; }
}

/* 视差砖块移动 */
@keyframes bricksBgDrift {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

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

/* 场景下方免责标注 */
.stage-disclaimer {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 10px;
  line-height: 1.4;
  text-align: center;
}

/* ==========================================================================
   购买流程关卡 (START → SELECT → CONNECT)
   ========================================================================== */
.stages-section {
  padding: 70px 0;
  background-color: rgba(20, 26, 51, 0.4);
  border-top: 2px solid var(--border-light);
  border-bottom: 2px solid var(--border-light);
}

.stage-step-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

.stage-card {
  background-color: var(--bg-surface);
  border: 3px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 28px 22px;
  position: relative;
}

.stage-card:hover {
  border-color: var(--color-yellow);
}

.stage-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  border-bottom: 2px dashed var(--border-light);
  padding-bottom: 12px;
}

.stage-level-tag {
  font-family: var(--font-arcade);
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--color-yellow);
  background-color: var(--color-black);
  padding: 4px 10px;
  border: 1px solid var(--color-yellow);
}

.stage-icon {
  font-size: 1.8rem;
}

.stage-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 10px;
}

.stage-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.stage-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  background-color: rgba(0, 0, 0, 0.25);
  padding: 8px 10px;
  border-left: 3px solid var(--color-green);
}

/* ==========================================================================
   核心优势区 (三种道具)
   ========================================================================== */
.advantages-section {
  padding: 80px 0;
}

.powerups-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.powerup-card {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
}

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

.powerup-icon-box {
  width: 58px;
  height: 58px;
  background-color: var(--color-black);
  border: 2px solid var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  flex-shrink: 0;
  box-shadow: 3px 3px 0 var(--color-pink);
}

.powerup-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
}

.powerup-label {
  font-size: 0.8rem;
  color: var(--color-green);
  font-family: var(--font-arcade);
  font-weight: 700;
}

.powerup-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.powerup-checklist {
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
}

.powerup-checklist li {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.powerup-checklist li::before {
  content: "■";
  color: var(--color-yellow);
  font-size: 0.7rem;
}

/* ==========================================================================
   全球节点 / 像素网络地图
   ========================================================================== */
.network-section {
  padding: 80px 0;
  background-color: rgba(14, 19, 41, 0.6);
  border-top: 2px solid var(--border-light);
  border-bottom: 2px solid var(--border-light);
}

.network-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: start;
}

.pixel-map-card {
  background-color: #070B18;
  border: 3px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 24px;
  position: relative;
}

.map-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  font-family: var(--font-arcade);
  font-size: 0.85rem;
  color: var(--color-green);
}

.pixel-map-canvas-mock {
  height: 280px;
  background-color: #090E21;
  border: 2px solid #1E284D;
  position: relative;
  overflow: hidden;
  /* 像素点阵背景 */
  background-image: radial-gradient(rgba(0, 234, 79, 0.25) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
}

.map-node-pin {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translate(-50%, -50%);
}

.node-dot {
  width: 12px;
  height: 12px;
  background-color: var(--color-yellow);
  border: 2px solid #000;
  box-shadow: 0 0 6px var(--color-yellow);
  animation: nodeBlink 1.5s infinite;
}

@keyframes nodeBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.node-pin-hk { top: 52%; left: 74%; }
.node-pin-jp { top: 38%; left: 82%; }
.node-pin-sg { top: 68%; left: 70%; }
.node-pin-us { top: 42%; left: 28%; }

.node-label {
  margin-top: 4px;
  font-size: 0.7rem;
  font-weight: 800;
  background-color: rgba(0, 0, 0, 0.85);
  color: var(--color-white);
  padding: 1px 6px;
  border: 1px solid var(--color-yellow);
  white-space: nowrap;
}

.map-legend {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: right;
}

.network-info-card {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 28px;
}

.network-info-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-yellow);
  margin-bottom: 16px;
}

.node-selection-guide {
  margin-bottom: 22px;
}

.node-guide-item {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-light);
}

.node-guide-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.node-guide-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.node-guide-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   AI 与流媒体 (两个游戏入口 PORTAL)
   ========================================================================== */
.portals-section {
  padding: 80px 0;
}

.portals-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.portal-card {
  background-color: var(--bg-surface);
  border: 3px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
}

.portal-card.portal-ai {
  border-color: var(--color-green);
}

.portal-card.portal-streaming {
  border-color: var(--color-pink);
}

.portal-badge {
  font-family: var(--font-arcade);
  font-size: 0.85rem;
  font-weight: 900;
  padding: 4px 10px;
  display: inline-block;
  margin-bottom: 14px;
  border: 2px solid #000;
}

.portal-ai .portal-badge {
  background-color: var(--color-green);
  color: var(--color-black);
}

.portal-streaming .portal-badge {
  background-color: var(--color-pink);
  color: var(--color-white);
}

.portal-title {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 12px;
}

.portal-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.app-tag {
  background-color: var(--bg-card-alt);
  color: var(--color-white);
  border: 1px solid var(--border-light);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
}

.portal-advice {
  background-color: rgba(0, 0, 0, 0.3);
  padding: 12px 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-left: 3px solid var(--color-yellow);
  line-height: 1.5;
}

.portals-disclaimer {
  max-width: 860px;
  margin: 32px auto 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ==========================================================================
   套餐价格 PRICING (三台街机选择屏)
   ========================================================================== */
.pricing-section {
  padding: 80px 0;
  background-color: rgba(20, 26, 51, 0.4);
  border-top: 2px solid var(--border-light);
  border-bottom: 2px solid var(--border-light);
}

.arcade-cabinets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cabinet-card {
  background-color: #0E1326;
  border: 4px solid var(--border-light);
  box-shadow: 6px 6px 0 #000000;
  display: flex;
  flex-direction: column;
  position: relative;
}

.cabinet-card.featured {
  border-color: var(--color-yellow);
  transform: translateY(-8px);
  box-shadow: 8px 8px 0 var(--color-pink);
}

.cabinet-marquee {
  background-color: #1A223E;
  border-bottom: 3px solid var(--color-black);
  padding: 12px 16px;
  text-align: center;
}

.cabinet-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--color-yellow);
  letter-spacing: 1px;
}

.cabinet-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.cabinet-screen {
  background-color: #060914;
  border: 2px solid #1C2442;
  margin: 16px;
  padding: 20px 16px;
  flex-grow: 1;
}

.screen-price-box {
  text-align: center;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border-light);
}

.screen-price-main {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-green);
  font-family: var(--font-arcade);
}

.screen-price-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.screen-specs-list {
  font-size: 0.88rem;
  margin-bottom: 14px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-label {
  color: var(--text-muted);
}

.spec-value {
  color: var(--color-white);
  font-weight: 700;
}

.cabinet-footer {
  padding: 0 16px 20px;
}

.pricing-notice {
  margin-top: 36px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  padding: 14px 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   SEO 文章卡带图卡 (9篇攻略磁带封面)
   ========================================================================== */
.articles-section {
  padding: 80px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.cartridge-card {
  background-color: var(--bg-surface);
  border: 3px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.cartridge-card:hover {
  transform: translate(-3px, -3px);
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-pixel-lg);
}

.cartridge-top {
  background-color: #090D1C;
  border-bottom: 2px solid var(--border-light);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cartridge-id {
  font-family: var(--font-arcade);
  font-size: 0.8rem;
  color: var(--color-pink);
  font-weight: 800;
}

.cartridge-category {
  font-size: 0.75rem;
  background-color: var(--bg-card-alt);
  color: var(--color-yellow);
  padding: 2px 8px;
  border: 1px solid var(--border-light);
}

.cartridge-body {
  padding: 20px 18px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.cartridge-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.4;
  margin-bottom: 10px;
}

.cartridge-title a:hover {
  color: var(--color-yellow);
}

.cartridge-summary {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.cartridge-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
}

.cartridge-btn {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-yellow);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
}

.cartridge-btn:hover {
  color: var(--color-green);
  text-decoration: underline;
}

/* ==========================================================================
   用户演示评价 (醒目标注待替换)
   ========================================================================== */
.reviews-section {
  padding: 70px 0;
  background-color: rgba(14, 19, 41, 0.4);
  border-top: 2px solid var(--border-light);
  border-bottom: 2px solid var(--border-light);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 22px;
}

.review-badge-demo {
  display: inline-block;
  background-color: #2D1A2C;
  color: var(--color-pink);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border: 1px solid var(--color-pink);
  margin-bottom: 12px;
}

.review-user-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.review-avatar-pixel {
  width: 38px;
  height: 38px;
  background-color: #232C4F;
  border: 2px solid var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.review-username {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-white);
}

.review-userrole {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   FAQ 常见问题解答
   ========================================================================== */
.faq-section {
  padding: 80px 0;
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  border-radius: 0 !important;
}

.faq-question {
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

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

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

.faq-icon-arrow {
  color: var(--color-green);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

details[open] .faq-icon-arrow {
  transform: rotate(90deg);
}

.faq-answer {
  padding: 0 22px 20px 22px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  margin-top: 4px;
}

.faq-answer p {
  margin-top: 12px;
}

.faq-answer ul {
  margin-top: 8px;
  padding-left: 20px;
  list-style: square;
}

.faq-answer li {
  margin-bottom: 6px;
}

/* ==========================================================================
   FOOTER 页脚
   ========================================================================== */
.site-footer {
  background-color: #070A16;
  border-top: 3px solid var(--border-light);
  padding: 60px 0 30px;
  color: var(--text-muted);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-yellow);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-nav-links li {
  margin-bottom: 10px;
}

.footer-nav-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s, padding-left 0.2s;
}

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

/* 相关推荐站点链接（轻微显色，符合规范） */
.partner-links-list li {
  margin-bottom: 10px;
}

.partner-link {
  font-size: 0.88rem;
  color: var(--color-green);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.partner-link:hover {
  color: var(--color-yellow);
  text-decoration: underline;
}

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

/* ==========================================================================
   文章详情页与独立页面专用样式 (ARTICLE TEMPLATE)
   ========================================================================== */
.page-header-banner {
  padding: 40px 0 30px;
  background-color: rgba(20, 26, 51, 0.4);
  border-bottom: 2px solid var(--border-light);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.breadcrumbs a {
  color: var(--color-yellow);
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.article-page-title {
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 16px;
}

.article-page-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-main-wrap {
  padding: 50px 0 80px;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}

.article-body-content {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 40px 36px;
  font-size: 1.02rem;
  line-height: 1.8;
  color: #E2E8F0;
  overflow-wrap: anywhere;
}

.article-body-content h2 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-yellow);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-light);
}

.article-body-content h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-green);
  margin: 26px 0 12px;
}

.article-body-content p {
  margin-bottom: 18px;
}

.article-body-content ul, .article-body-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body-content ul {
  list-style: square;
}

.article-body-content ol {
  list-style: decimal;
}

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

/* 规范化表格样式 */
.article-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 2px solid var(--border-light);
}

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

.pixel-table th, .pixel-table td {
  padding: 12px 14px;
  border: 1px solid var(--border-light);
}

.pixel-table th {
  background-color: #0E1328;
  color: var(--color-yellow);
  font-weight: 800;
}

.pixel-table tr:nth-child(even) td {
  background-color: rgba(255, 255, 255, 0.02);
}

.article-callout {
  background-color: #1A2342;
  border-left: 4px solid var(--color-pink);
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.95rem;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.sidebar-widget {
  background-color: var(--bg-surface);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-pixel);
  padding: 22px;
}

.sidebar-widget-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-yellow);
  margin-bottom: 14px;
  border-bottom: 2px solid var(--border-light);
  padding-bottom: 8px;
}

/* ==========================================================================
   动效暂停模式与媒体查询支持
   ========================================================================== */
body.reduce-motion-mode *,
body.reduce-motion-mode *::before,
body.reduce-motion-mode *::after {
  animation: none !important;
  transition: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
}

/* ==========================================================================
   响应式断点适配 (1440px, 1024px, 768px, 430px, 390px, 375px)
   ========================================================================== */

/* 笔记本与平板宽屏 (<= 1024px) */
@media screen and (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  
  .hero-title {
    font-size: 2.3rem;
  }
  
  .arcade-viewport {
    height: 320px;
  }
  
  .stage-step-grid,
  .powerups-grid,
  .arcade-cabinets-grid,
  .reviews-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .cabinet-card.featured {
    transform: none;
  }
  
  .articles-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .network-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .article-layout {
    grid-template-columns: 1fr;
  }
}

/* 平板竖屏与大屏手机 (<= 768px) */
@media screen and (max-width: 768px) {
  .site-header {
    height: auto;
  }
  
  .header-inner {
    height: 60px;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .site-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background-color: var(--bg-surface);
    border-bottom: 3px solid var(--color-yellow);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.8);
    padding: 20px;
  }
  
  .site-nav.is-open {
    display: block;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .nav-link {
    font-size: 1.05rem;
    width: 100%;
    display: block;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-features-list {
    grid-template-columns: 1fr;
  }
  
  .stage-step-grid,
  .powerups-grid,
  .portals-grid,
  .arcade-cabinets-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* 窄屏手机 (<= 430px, 390px, 375px) */
@media screen and (max-width: 430px) {
  .container {
    padding: 0 14px;
  }
  
  .hero-title {
    font-size: 1.7rem;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .pixel-btn {
    width: 100%;
    padding: 10px 16px;
    font-size: 0.95rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .header-actions .pixel-btn {
    display: none; /* 移动端在导航内展开 */
  }
  
  .arcade-viewport {
    height: 260px;
  }
  
  .duck-stage-actor {
    left: 14%;
  }
  
  .article-body-content {
    padding: 24px 16px;
  }
  
  .article-page-title {
    font-size: 1.6rem;
  }
}