/* ==========================================================================
   FOREST QUEST / 像素森林 - 核心样式表
   配色系统：#101D19 / #A8E06A / #F6D788 / #8CD9CB
   ========================================================================== */

:root {
  /* 主题核心色值 */
  --color-bg: #101D19;
  --color-bg-alt: #142520;
  --color-surface: #193129;
  --color-surface-hover: #214036;
  --color-surface-border: #2B4E41;
  
  --color-lime: #A8E06A;
  --color-lime-glow: rgba(168, 224, 106, 0.35);
  --color-gold: #F6D788;
  --color-gold-glow: rgba(246, 215, 136, 0.45);
  --color-mint: #8CD9CB;
  --color-mint-glow: rgba(140, 217, 203, 0.35);

  /* 木质与自然纹理辅助色 */
  --wood-darkest: #1B120B;
  --wood-dark: #2F1E14;
  --wood-mid: #4E3422;
  --wood-light: #734F35;
  --wood-highlight: #996B49;
  --wood-plank-shadow: rgba(15, 9, 5, 0.7);

  /* 纸页与羊皮纸手册色 */
  --parchment-bg: #F4EEDC;
  --parchment-edge: #DACBB0;
  --parchment-ink: #1B2923;
  --parchment-muted: #4B6358;

  /* 文字高对比度色 */
  --text-main: #EEF8F2;
  --text-muted: #BAD4C7;
  --text-dim: #799C8E;
  --text-dark: #121E19;

  /* 基础度量 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-pixel: "Courier New", Consolas, Menlo, monospace;
  --container-max: 1200px;
  --header-height: 72px;
  --transition-normal: 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* 基础重置与无溢出保障 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  background-color: var(--color-bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

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

/* 键盘可访问性焦点 */
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 排版通用 */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

p, ul, ol, table {
  overflow-wrap: anywhere;
}

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

a:hover {
  color: var(--color-lime);
}

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

button {
  font-family: inherit;
  font-size: 1rem;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 像素微质感标签与徽章 */
.pixel-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border: 2px solid var(--color-surface-border);
  background: rgba(16, 29, 25, 0.85);
  color: var(--color-lime);
  border-radius: 2px;
  box-shadow: 2px 2px 0 var(--color-bg);
  text-transform: uppercase;
}

.pixel-badge.gold {
  color: var(--color-gold);
  border-color: rgba(246, 215, 136, 0.4);
}

.pixel-badge.mint {
  color: var(--color-mint);
  border-color: rgba(140, 217, 203, 0.4);
}

/* 视觉示意免责提示条 */
.disclaimer-tag {
  font-size: 0.75rem;
  color: var(--text-dim);
  background: rgba(20, 37, 32, 0.7);
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px dashed var(--color-surface-border);
  display: inline-block;
}

/* ==========================================================================
   按钮系统：商业 CTA、锚点按钮与游戏交互
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 4px;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
  font-size: 0.95rem;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

/* 主商业行动号召：像素金叶流光 */
.btn-primary {
  background: linear-gradient(135deg, var(--color-lime), #84C548);
  color: #0E1A16;
  border: 2px solid #C0F08B;
  box-shadow: 0 4px 14px rgba(168, 224, 106, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #B9EE82, var(--color-lime));
  color: #08120F;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 224, 106, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), #E2BE66);
  color: #1A1305;
  border: 2px solid #FBE7A8;
  box-shadow: 0 4px 14px rgba(246, 215, 136, 0.25);
}

.btn-gold:hover {
  background: linear-gradient(135deg, #FBE7A8, var(--color-gold));
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(246, 215, 136, 0.4);
  color: #120C02;
}

.btn-secondary {
  background: rgba(25, 49, 41, 0.85);
  color: var(--text-main);
  border: 2px solid var(--color-surface-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-mint);
  color: var(--color-mint);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.85rem;
}

/* 动效开关按钮 & 点亮营地按钮 */
.interactive-ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 0.8rem;
  font-family: var(--font-pixel);
  background: rgba(20, 37, 32, 0.9);
  border: 1px solid var(--color-surface-border);
  color: var(--text-muted);
  border-radius: 4px;
  transition: all var(--transition-normal);
}

.interactive-ctrl-btn:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.interactive-ctrl-btn.active {
  background: rgba(246, 215, 136, 0.15);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ==========================================================================
   Header 导航栏
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(16, 29, 25, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(43, 78, 65, 0.5);
  display: flex;
  align-items: center;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
}

.brand-icon-svg {
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  flex-shrink: 0;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(168, 224, 106, 0.3));
}

.brand-name {
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.brand-name span {
  color: var(--color-lime);
}

.nav-menu {
  display: none;
  list-style: none;
  align-items: center;
  gap: 20px;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 4px;
  position: relative;
  transition: color var(--transition-normal);
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-lime);
  transition: width var(--transition-normal);
}

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

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

.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: rgba(25, 49, 41, 0.8);
  border: 1px solid var(--color-surface-border);
  border-radius: 4px;
  cursor: pointer;
  padding: 8px;
  gap: 5px;
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单抽屉 */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: rgba(16, 29, 25, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-surface-border);
  display: none;
  flex-direction: column;
  padding: 24px 20px;
  overflow-y: auto;
  z-index: 999;
}

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

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.mobile-nav-link {
  font-size: 1.15rem;
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: 6px;
  display: block;
  border-left: 3px solid transparent;
  background: rgba(25, 49, 41, 0.4);
}

.mobile-nav-link:hover, .mobile-nav-link:focus-visible {
  color: var(--color-lime);
  border-left-color: var(--color-lime);
  background: rgba(25, 49, 41, 0.9);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   Hero 首屏：森林探险游戏风 (木质任务牌 + 像素小鸟与分层森林)
   ========================================================================== */

.hero-section {
  position: relative;
  padding: 48px 0 64px 0;
  background: radial-gradient(circle at 80% 20%, rgba(35, 66, 55, 0.4) 0%, rgba(16, 29, 25, 1) 75%);
  border-bottom: 1px solid var(--color-surface-border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
  position: relative;
  z-index: 2;
}

/* 木质任务牌 (Hero 文字区) */
.quest-board {
  position: relative;
  background: linear-gradient(180deg, var(--wood-mid) 0%, var(--wood-dark) 100%);
  border: 4px solid var(--wood-darkest);
  border-radius: 8px;
  box-shadow: 0 16px 36px var(--wood-plank-shadow), 
              inset 0 2px 4px var(--wood-highlight),
              inset 0 -4px 6px rgba(0, 0, 0, 0.6);
  padding: 32px 28px;
}

/* 木板横向拼缝纹理 */
.quest-board::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    180deg,
    transparent 0px,
    transparent 42px,
    rgba(15, 9, 5, 0.65) 43px,
    rgba(153, 107, 73, 0.25) 44px,
    transparent 45px
  );
  pointer-events: none;
  border-radius: 4px;
}

/* 木牌四个角落铆钉 */
.quest-board .board-rivet {
  position: absolute;
  width: 12px;
  height: 12px;
  background: radial-gradient(circle at 35% 35%, #D4A373 0%, #4A3022 70%, #1A1009 100%);
  border-radius: 50%;
  box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.3);
  z-index: 3;
}
.quest-board .rivet-tl { top: 10px; left: 10px; }
.quest-board .rivet-tr { top: 10px; right: 10px; }
.quest-board .rivet-bl { bottom: 10px; left: 10px; }
.quest-board .rivet-br { bottom: 10px; right: 10px; }

/* 任务牌顶部挂绳与吊环 */
.board-hanger {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 120px;
}
.hanger-iron {
  width: 14px;
  height: 24px;
  border: 3px solid #6C4F3B;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

.quest-board-inner {
  position: relative;
  z-index: 2;
}

.quest-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.quest-title {
  font-size: 2.1rem;
  line-height: 1.25;
  color: #FFFDF8;
  text-shadow: 2px 2px 0 #100C08, 0 0 16px rgba(246, 215, 136, 0.3);
  margin-bottom: 14px;
}

.quest-title span {
  color: var(--color-lime);
}

.quest-desc {
  font-size: 1rem;
  color: #E2ECE5;
  line-height: 1.65;
  margin-bottom: 24px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

.quest-board-footer {
  padding-top: 18px;
  border-top: 1px dashed rgba(246, 215, 136, 0.3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.camp-lantern-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 营地吊灯状态 */
.camp-lantern-icon {
  width: 24px;
  height: 24px;
  filter: grayscale(1) opacity(0.6);
  transition: all var(--transition-normal);
}

body.camp-lights-on .camp-lantern-icon {
  filter: grayscale(0) opacity(1) drop-shadow(0 0 8px var(--color-gold));
  color: var(--color-gold);
}

/* 右下游戏场景容器 (像素小鸟 + 分层森林) */
.forest-scene-wrap {
  position: relative;
  min-height: 380px;
  background: linear-gradient(180deg, #101D19 0%, #152923 60%, #1B352D 100%);
  border: 3px solid var(--color-surface-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.6), 0 12px 30px rgba(0, 0, 0, 0.4);
}

/* 装饰灯笼悬挂在森林场景顶部 */
.scene-lantern {
  position: absolute;
  top: 16px;
  width: 32px;
  height: 48px;
  z-index: 10;
  transition: filter var(--transition-normal);
}
.scene-lantern.left { left: 24px; }
.scene-lantern.right { right: 28px; }

.scene-lantern svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.7));
}

.lantern-glow {
  opacity: 0.25;
  transition: opacity 0.3s ease, filter 0.3s ease;
}

body.camp-lights-on .scene-lantern .lantern-glow {
  opacity: 1;
  filter: drop-shadow(0 0 12px var(--color-gold));
}

body.camp-lights-on .forest-scene-wrap {
  box-shadow: inset 0 0 40px rgba(246, 215, 136, 0.08), 0 12px 30px rgba(0, 0, 0, 0.4);
}

/* 萤火虫粒子 (呼吸动画) */
.fireflies-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 8;
}

.firefly {
  position: absolute;
  width: 5px;
  height: 5px;
  background: var(--color-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-gold), 0 0 14px var(--color-lime);
  animation: fireflyFloat 6s infinite ease-in-out alternate;
}

.firefly:nth-child(1) { top: 22%; left: 18%; animation-delay: 0s; }
.firefly:nth-child(2) { top: 48%; left: 75%; animation-delay: 1.2s; }
.firefly:nth-child(3) { top: 68%; left: 32%; animation-delay: 2.5s; }
.firefly:nth-child(4) { top: 35%; left: 52%; animation-delay: 3.8s; }
.firefly:nth-child(5) { top: 78%; left: 82%; animation-delay: 4.6s; }
.firefly:nth-child(6) { top: 15%; left: 88%; animation-delay: 0.8s; }

@keyframes fireflyFloat {
  0% {
    transform: translate(0, 0) scale(0.8);
    opacity: 0.2;
  }
  50% {
    transform: translate(8px, -14px) scale(1.3);
    opacity: 0.95;
  }
  100% {
    transform: translate(-10px, -24px) scale(0.9);
    opacity: 0.3;
  }
}

/* 分层森林 SVG 图层 */
.forest-layer-back {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 65%;
  z-index: 3;
  transform-origin: bottom center;
  animation: treeSway 9s infinite ease-in-out alternate;
}

.forest-layer-mid {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 52%;
  z-index: 4;
  transform-origin: bottom center;
  animation: treeSway 7s infinite ease-in-out alternate-reverse;
}

.forest-layer-front {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 38%;
  z-index: 5;
  transform-origin: bottom center;
  animation: treeSway 5s infinite ease-in-out alternate;
}

@keyframes treeSway {
  0% { transform: skewX(0deg) scaleY(1); }
  50% { transform: skewX(1.2deg) scaleY(1.01); }
  100% { transform: skewX(-1deg) scaleY(0.99); }
}

/* 原创像素小鸟舞台 */
.pixel-bird-stage {
  position: absolute;
  bottom: 24px;
  right: 36px;
  z-index: 7;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pixel-bird-perch {
  width: 64px;
  height: 8px;
  background: var(--wood-mid);
  border: 1px solid var(--wood-darkest);
  border-radius: 2px;
  margin-top: -3px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.6);
}

.pixel-bird-svg {
  width: 48px;
  height: 48px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.5));
}

/* 小鸟轻晃尾巴与身体微动动效 */
.bird-tail {
  transform-origin: 18px 30px;
  animation: birdTailWag 2.4s infinite ease-in-out;
}

.bird-body-group {
  animation: birdBob 3.2s infinite ease-in-out;
}

@keyframes birdTailWag {
  0%, 100% { transform: rotate(0deg); }
  30% { transform: rotate(-8deg); }
  50% { transform: rotate(6deg); }
  70% { transform: rotate(-4deg); }
}

@keyframes birdBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.scene-caption-bar {
  position: absolute;
  bottom: 8px;
  left: 12px;
  z-index: 9;
  font-size: 0.75rem;
  color: var(--text-dim);
  background: rgba(16, 29, 25, 0.85);
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid rgba(43, 78, 65, 0.5);
  font-family: var(--font-pixel);
}

/* ==========================================================================
   通用区块标题与深绿留白布局
   ========================================================================== */

.section-padding {
  padding: 80px 0;
  position: relative;
}

.section-bg-alt {
  background-color: var(--color-bg-alt);
  border-top: 1px solid rgba(43, 78, 65, 0.35);
  border-bottom: 1px solid rgba(43, 78, 65, 0.35);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px auto;
}

.section-subtitle {
  color: var(--color-lime);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-family: var(--font-pixel);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2rem;
  color: var(--text-main);
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   模块 1：购买步骤 —— 三段森林步道 (Forest Trail)
   ========================================================================== */

.trail-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  position: relative;
}

.trail-card {
  position: relative;
  background: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: 8px;
  padding: 30px 24px;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

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

.trail-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.trail-marker {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--wood-light), var(--wood-mid));
  border: 2px solid var(--color-gold);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-gold);
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
  flex-shrink: 0;
}

.trail-step-info h3 {
  font-size: 1.25rem;
  color: var(--text-main);
}

.trail-step-info .step-label {
  font-size: 0.8rem;
  color: var(--color-mint);
  font-family: var(--font-pixel);
}

.trail-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.trail-notice-box {
  margin-top: auto;
  padding: 10px 14px;
  background: rgba(16, 29, 25, 0.6);
  border-left: 3px solid var(--color-gold);
  font-size: 0.85rem;
  color: var(--text-dim);
  border-radius: 0 4px 4px 0;
}

/* ==========================================================================
   模块 2：核心优势 —— 工具背包 (Adventurer Backpack)
   ========================================================================== */

.backpack-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.gear-slot-card {
  background: linear-gradient(145deg, #183127 0%, #13241D 100%);
  border: 2px solid var(--color-surface-border);
  border-radius: 8px;
  padding: 28px 24px;
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

/* 背包皮带卡扣装饰线条 */
.gear-slot-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 28px;
  width: 14px;
  height: 28px;
  background: var(--wood-mid);
  border: 1px solid var(--wood-darkest);
  border-radius: 0 0 3px 3px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.gear-slot-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-mint);
  box-shadow: 0 10px 24px rgba(140, 217, 203, 0.15);
}

.gear-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 8px;
  background: rgba(16, 29, 25, 0.9);
  border: 2px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-lime);
}

.gear-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.gear-slot-card h3 {
  font-size: 1.25rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.gear-slot-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   模块 3：全球节点 —— 旅行地图 (Travel Map)
   ========================================================================== */

.travel-map-wrapper {
  background: #142821;
  border: 3px solid var(--color-surface-border);
  border-radius: 8px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.5);
}

/* 地图经纬网格与罗盘 */
.map-canvas-visual {
  position: relative;
  background: #0F1E19;
  border: 1px solid var(--color-surface-border);
  border-radius: 6px;
  min-height: 340px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.map-grid-lines {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(43, 78, 65, 0.3) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 78, 65, 0.3) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.map-compass-rose {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 60px;
  height: 60px;
  opacity: 0.35;
  pointer-events: none;
}

.nodes-topology-svg {
  width: 100%;
  max-width: 800px;
  height: auto;
  position: relative;
  z-index: 2;
}

.map-nodes-legend {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.node-legend-item {
  background: rgba(16, 29, 25, 0.85);
  border: 1px solid var(--color-surface-border);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.node-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-item-name {
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-item-name .flag-pill {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  background: rgba(168, 224, 106, 0.15);
  color: var(--color-lime);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid rgba(168, 224, 106, 0.3);
}

.node-item-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   模块 4：AI 与视频 —— 两间树屋 (Two Treehouses)
   ========================================================================== */

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

.treehouse-card {
  background: linear-gradient(180deg, #19342A 0%, #12241D 100%);
  border: 2px solid var(--color-surface-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
  position: relative;
  display: flex;
  flex-direction: column;
}

.treehouse-card-header {
  background: var(--wood-dark);
  border-bottom: 2px solid var(--wood-darkest);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.treehouse-icon-wrap {
  width: 48px;
  height: 48px;
  background: var(--wood-mid);
  border: 2px solid var(--color-gold);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
}

.treehouse-title-group h3 {
  font-size: 1.3rem;
  color: #FFFDF7;
}

.treehouse-badge {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--color-lime);
}

.treehouse-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.treehouse-tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(16, 29, 25, 0.8);
  border: 1px solid var(--color-surface-border);
  color: var(--color-mint);
}

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

.treehouse-notes-list li {
  font-size: 0.92rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 20px;
  line-height: 1.55;
}

.treehouse-notes-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-lime);
  font-size: 0.8rem;
}

.treehouse-disclaimer {
  margin-top: auto;
  font-size: 0.8rem;
  color: var(--text-dim);
  background: rgba(16, 29, 25, 0.6);
  padding: 10px 14px;
  border-radius: 4px;
  border-left: 2px solid var(--color-gold);
}

/* ==========================================================================
   模块 5：套餐价格 —— 三种补给包与横向规格带 (Pricing & Supply Packs)
   ========================================================================== */

/* 横向规格快速参考带 */
.pricing-specs-strip {
  background: rgba(20, 37, 32, 0.9);
  border: 2px solid var(--color-surface-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 40px;
  overflow-x: auto;
}

.specs-strip-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
  min-width: 600px;
}

.specs-strip-table th {
  padding: 10px 14px;
  color: var(--color-lime);
  font-family: var(--font-pixel);
  border-bottom: 2px solid var(--color-surface-border);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.specs-strip-table td {
  padding: 14px;
  border-bottom: 1px solid rgba(43, 78, 65, 0.3);
  color: var(--text-muted);
}

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

.specs-strip-table td strong {
  color: var(--text-main);
}

/* 三档补给卡片布局 */
.supplies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: stretch;
}

.supply-pack-card {
  background: linear-gradient(180deg, #183127 0%, #13241D 100%);
  border: 2px solid var(--color-surface-border);
  border-radius: 8px;
  padding: 32px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

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

/* 独立推荐卡高亮 */
.supply-pack-card.recommended-pack {
  border-color: var(--color-gold);
  background: linear-gradient(180deg, #1E3D31 0%, #152A22 100%);
  box-shadow: 0 12px 32px rgba(246, 215, 136, 0.15), 0 0 0 1px var(--color-gold);
}

.recommend-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-gold);
  color: #120D04;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-pixel);
  padding: 4px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
}

.pack-header {
  margin-bottom: 20px;
  text-align: center;
}

.pack-icon-svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px auto;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
}

.pack-title {
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.pack-subtitle {
  font-size: 0.85rem;
  color: var(--color-mint);
  font-family: var(--font-pixel);
}

.pack-price-box {
  background: rgba(16, 29, 25, 0.7);
  border: 1px solid var(--color-surface-border);
  border-radius: 6px;
  padding: 16px;
  text-align: center;
  margin-bottom: 22px;
}

.pack-price-val {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  font-family: var(--font-pixel);
  letter-spacing: -0.5px;
}

.price-currency {
  font-size: 1.3rem;
  color: var(--color-lime);
  font-weight: 700;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  font-family: var(--font-sans);
}

.pack-price-tip {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.pack-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex: 1;
}

.pack-features-list li {
  font-size: 0.92rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.5;
}

.pack-features-list li .check-icon {
  color: var(--color-lime);
  font-weight: 700;
  flex-shrink: 0;
}

.pack-features-list li strong {
  color: var(--text-main);
}

.pack-cta-wrap {
  margin-top: auto;
}

.pack-cta-wrap .btn {
  width: 100%;
}

/* ==========================================================================
   模块 6：SEO 文章 —— 野外手册 (Wild Handbook 纸页卡片)
   ========================================================================== */

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

/* 纸页边缘卡片样式 (区别于普通框体) */
.handbook-card {
  background: var(--parchment-bg);
  color: var(--parchment-ink);
  border-radius: 4px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  border: 1px solid var(--parchment-edge);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

/* 纸张顶部撕边与图钉视觉 */
.handbook-card::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  background: radial-gradient(circle at 35% 35%, #D62828 0%, #780000 80%);
  border-radius: 50%;
  box-shadow: 1px 1px 3px rgba(0,0,0,0.4);
}

/* 纸张底部微斜折角 */
.handbook-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 16px 16px;
  border-color: transparent transparent var(--color-bg) transparent;
  pointer-events: none;
}

.handbook-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.6);
}

.handbook-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-top: 6px;
  font-size: 0.8rem;
  color: var(--parchment-muted);
}

.handbook-category {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  background: #E3D6BC;
  color: #2F3E37;
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 700;
  border: 1px solid #CEBF9F;
}

.handbook-readtime {
  font-size: 0.75rem;
  color: var(--parchment-muted);
}

.handbook-cover-wrap {
  width: 100%;
  height: 140px;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 16px;
  background: #E6DCBF;
  border: 1px solid #D5C7A5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.handbook-cover-wrap svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.handbook-title {
  font-size: 1.18rem;
  color: #17241F;
  margin-bottom: 10px;
  line-height: 1.4;
  font-weight: 700;
}

.handbook-excerpt {
  font-size: 0.9rem;
  color: #384F45;
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.handbook-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed #CEBEA1;
  font-size: 0.82rem;
}

.handbook-date {
  color: var(--parchment-muted);
}

.handbook-link {
  font-weight: 700;
  color: #1A543A;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.handbook-link:hover {
  color: #0E3624;
  text-decoration: underline;
}

/* ==========================================================================
   模块 7：用户评价 —— 旅人留言 (Traveler Message Board)
   ========================================================================== */

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.review-plank-card {
  background: linear-gradient(180deg, #183127 0%, #12241D 100%);
  border: 2px solid var(--color-surface-border);
  border-radius: 6px;
  padding: 24px;
  position: relative;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
}

.review-demo-stamp {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 0.72rem;
  font-family: var(--font-pixel);
  color: var(--color-gold);
  border: 1px dashed var(--color-gold);
  padding: 2px 6px;
  border-radius: 3px;
  opacity: 0.85;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.traveler-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--wood-mid);
  border: 2px solid var(--color-mint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.traveler-meta h4 {
  font-size: 1.05rem;
  color: var(--text-main);
}

.traveler-meta span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.review-quote {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-style: italic;
  position: relative;
}

/* ==========================================================================
   模块 8：FAQ —— 营地公告 (Camp Announcement Board)
   ========================================================================== */

.faq-board {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.faq-item[open] {
  border-color: var(--color-mint);
  background: rgba(25, 49, 41, 0.95);
}

.faq-question {
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

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

.faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--color-mint);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item[open] .faq-arrow {
  transform: rotate(180deg);
  color: var(--color-gold);
}

.faq-answer {
  padding: 0 22px 20px 22px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px dashed rgba(43, 78, 65, 0.4);
  padding-top: 16px;
}

.faq-answer p {
  margin-bottom: 10px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

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

/* ==========================================================================
   Footer 页脚与营地基石
   ========================================================================== */

.site-footer {
  background: #0B1411;
  border-top: 3px solid var(--color-surface-border);
  padding: 60px 0 30px 0;
  margin-top: auto;
  font-size: 0.9rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-brand-col h3 {
  font-size: 1.3rem;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand-desc {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 360px;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 1rem;
  color: var(--color-lime);
  font-family: var(--font-pixel);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-links-list a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-normal);
}

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

/* 友情推荐站点：三个指定外链 */
.friendly-links-section {
  padding: 24px 0;
  border-top: 1px solid rgba(43, 78, 65, 0.35);
  border-bottom: 1px solid rgba(43, 78, 65, 0.35);
  margin-bottom: 30px;
}

.friendly-links-title {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 12px;
  font-family: var(--font-pixel);
  text-transform: uppercase;
}

.friendly-links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
}

.friendly-links-list a {
  color: var(--color-mint);
  font-size: 0.88rem;
  opacity: 0.85;
  transition: opacity var(--transition-normal), color var(--transition-normal);
}

.friendly-links-list a:hover {
  opacity: 1;
  color: var(--color-gold);
}

.footer-bottom-row {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
}

.footer-legal-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

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

.footer-legal-nav a:hover {
  color: var(--color-mint);
}

/* ==========================================================================
   独立文章页与单页 (Article Page & Standalone Pages)
   ========================================================================== */

.page-header-banner {
  background: linear-gradient(180deg, rgba(20, 37, 32, 0.9) 0%, rgba(16, 29, 25, 0.95) 100%);
  border-bottom: 1px solid var(--color-surface-border);
  padding: 40px 0;
}

.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-mint);
}

.breadcrumbs span.sep {
  color: var(--text-dim);
}

.article-header-title {
  font-size: 2.2rem;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text-main);
}

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

.article-content-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding: 50px 0 80px 0;
}

.article-body-main {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #DDEEE4;
}

.article-body-main h2 {
  font-size: 1.6rem;
  color: var(--color-lime);
  margin: 40px 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-surface-border);
}

.article-body-main h3 {
  font-size: 1.3rem;
  color: var(--color-gold);
  margin: 28px 0 12px 0;
}

.article-body-main p {
  margin-bottom: 20px;
}

.article-body-main ul, .article-body-main ol {
  margin: 16px 0 24px 28px;
}

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

.article-body-main strong {
  color: #FFFDF8;
}

.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border: 1px solid var(--color-surface-border);
  border-radius: 6px;
  background: var(--color-surface);
}

.article-body-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 560px;
}

.article-body-main th {
  background: rgba(16, 29, 25, 0.9);
  color: var(--color-lime);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 2px solid var(--color-surface-border);
  font-family: var(--font-pixel);
}

.article-body-main td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(43, 78, 65, 0.3);
  color: var(--text-muted);
}

.article-callout {
  background: rgba(20, 37, 32, 0.85);
  border-left: 4px solid var(--color-gold);
  border-radius: 0 6px 6px 0;
  padding: 18px 20px;
  margin: 28px 0;
}

.article-callout.info {
  border-left-color: var(--color-mint);
}

.article-callout.tip {
  border-left-color: var(--color-lime);
}

.article-callout h4 {
  color: var(--text-main);
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.article-callout p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.related-articles-section {
  background: rgba(20, 37, 32, 0.6);
  border-top: 1px solid var(--color-surface-border);
  padding: 50px 0;
  margin-top: 60px;
}

/* ==========================================================================
   动效暂停控制状态 (Pause decorative animations)
   ========================================================================== */

html.motion-paused *,
html.motion-paused *::before,
html.motion-paused *::after {
  animation-play-state: paused !important;
  transition-duration: 0.01ms !important;
}

/* 支持系统减弱动画偏好 (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;
  }
  .firefly, .forest-layer-back, .forest-layer-mid, .forest-layer-front, .bird-tail, .bird-body-group {
    animation: none !important;
  }
}

/* ==========================================================================
   响应式断点适配：平板与桌面端
   ========================================================================== */

/* 平板设备 (>= 768px) */
@media (min-width: 768px) {
  .trail-container {
    grid-template-columns: repeat(3, 1fr);
  }

  .backpack-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .treehouses-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .map-nodes-legend {
    grid-template-columns: repeat(2, 1fr);
  }

  .supplies-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-top-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer-bottom-row {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* 桌面设备 (>= 1024px) */
@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
  }

  .hamburger-btn {
    display: none;
  }

  .mobile-drawer {
    display: none !important;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
  }

  .quest-title {
    font-size: 2.6rem;
  }

  .backpack-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .map-nodes-legend {
    grid-template-columns: repeat(4, 1fr);
  }

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

/* 大桌面 (>= 1440px) */
@media (min-width: 1440px) {
  :root {
    --container-max: 1320px;
  }

  .hero-section {
    padding: 64px 0 80px 0;
  }

  .forest-scene-wrap {
    min-height: 420px;
  }
}