/* =========================================================================
   Vega VPN Portal · Animal Island UI 主题 · 严格按官方 DESIGN_PROMPT 实现
   参考: github.com/guokaigdg/animal-island-ui
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800;900&family=Noto+Sans+SC:wght@400;500;700;800&family=Zen+Maru+Gothic:wght@400;500;700&display=swap');

/* ---------- 设计 Token（精确照搬 variables.less） ---------- */
:root {
  /* 主色 · 薄荷青 */
  --animal-primary:        #19c8b9;
  --animal-primary-hover:  #3dd4c6;
  --animal-primary-active: #11a89b;
  --animal-primary-bg:     #e6f9f6;

  /* 文字 · 暖棕 */
  --animal-text-primary:   #794f27;   /* 标题 / Header */
  --animal-text-body:      #725d42;   /* 正文 */
  --animal-text-secondary: #9f927d;
  --animal-text-muted:     #8a7b66;
  --animal-text-disabled:  #c4b89e;
  --animal-text-placeholder:#c4b89e;

  /* 背景 · 羊皮纸 */
  --animal-bg:             #f8f8f0;
  --animal-bg-content:     rgb(247, 243, 223);
  --animal-bg-home:        #7DC395;

  /* 状态色 */
  --animal-success:        #6fba2c;
  --animal-success-active: #5a9e1e;
  --animal-warning:        #f5c31c;
  --animal-warning-active: #dba90e;
  --animal-error:          #e05a5a;
  --animal-error-active:   #c94444;

  /* 游戏特色 */
  --animal-focus-yellow:   #ffcc00;
  --animal-focus-yellow-dark:#e0b800;

  /* 边框 */
  --animal-border:         #9f927d;
  --animal-border-input:   #c4b89e;
  --animal-border-input-hover:#a89878;

  /* 立体阴影色 */
  --animal-shadow-btn:     #bdaea0;
  --animal-shadow-input:   #d4c9b4;

  /* 圆角 */
  --animal-radius-pill:    50px;
  --animal-radius-card:    20px;
  --animal-radius-lg:      24px;
  --animal-radius-md:      18px;
  --animal-radius-sm:      12px;

  /* NookPhone 调色板 */
  --np-pink:    #f8a6b2;
  --np-purple:  #b77dee;
  --np-blue:    #889df0;
  --np-yellow:  #f7cd67;
  --np-orange:  #e59266;
  --np-teal:    #82d5bb;
  --np-green:   #8ac68a;
  --np-red:     #fc736d;
  --np-lime:    #d1da49;
  --np-yellowg: #ecdf52;
  --np-brown:   #9a835a;
  --np-peach:   #e18c6f;

  --animal-font: 'Nunito', 'Noto Sans SC', 'Zen Maru Gothic', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;

  --animal-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: var(--animal-font);
  font-weight: 500;
  color: var(--animal-text-body);
  background-color: var(--animal-bg);
  min-height: 100vh;
  line-height: 1.65;
  letter-spacing: 0.01em;
}

body {
  background-image: url('assets/content_bg_pc.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
}

body.home {
  background-color: var(--animal-bg-home);
  background-image: url('assets/home_bg.webp');
  background-size: cover;
  background-attachment: fixed;
  background-position: center top;
}

a { color: var(--animal-primary-active); text-decoration: none; font-weight: 700; }
a:hover { color: var(--animal-primary); text-decoration: underline; text-decoration-style: wavy; text-underline-offset: 3px; }

h1, h2, h3, h4 {
  color: var(--animal-text-primary);
  font-family: var(--animal-font);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0.6em 0 0.4em;
  line-height: 1.25;
}
h1 { font-size: 2.4rem; }
h2 { font-size: 1.7rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; font-weight: 700; }

p { margin: 0.5em 0 1em; }
strong { color: var(--animal-text-primary); font-weight: 700; }

code {
  font-family: 'SF Mono','Fira Code','Cascadia Code',Consolas,monospace;
  background: #2b2118;
  color: #e8d5bc;
  border-radius: 8px;
  padding: 2px 8px;
  font-weight: 600;
  font-size: 0.9em;
}
pre {
  font-family: 'SF Mono','Fira Code','Cascadia Code',Consolas,monospace;
  background: #2b2118;
  color: #e8d5bc;
  border: 1px solid #3d3028;
  border-radius: var(--animal-radius-card);
  padding: 20px 24px;
  overflow-x: auto;
  font-weight: 600;
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 14px 0;
  box-shadow: 0 4px 10px rgba(107,92,67,0.20);
}
pre code { background: transparent; padding: 0; color: inherit; }

/* ---------- 顶部导航 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248, 248, 240, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--animal-border-input);
  padding: 12px 28px;
  display: flex; align-items: center; gap: 16px;
}
.navbar .logo {
  font-family: var(--animal-font);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--animal-text-primary);
  display: flex; align-items: center; gap: 10px;
  letter-spacing: 0.02em;
}
.navbar .logo .badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  background: var(--animal-primary);
  border-radius: 50%;
  border: 2.5px solid var(--animal-text-primary);
  box-shadow: 0 3px 0 0 var(--animal-primary-active);
  font-size: 1.3rem;
}
.navbar .nav-links { margin-left: auto; display: flex; gap: 10px; flex-wrap: wrap; }
.navbar .nav-links a {
  color: var(--animal-text-body);
  padding: 8px 16px;
  border-radius: var(--animal-radius-pill);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: var(--animal-transition);
}
.navbar .nav-links a:hover {
  background: var(--animal-primary-bg);
  color: var(--animal-primary-active);
  text-decoration: none;
}

/* ---------- 容器 ---------- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 80px;
}

/* ---------- Hero（首页大横幅 · 草地背景） ---------- */
.hero {
  background: linear-gradient(180deg, rgba(125,195,149,0.78) 0%, rgba(125,195,149,0.55) 100%), url('assets/home_bg.webp') center/cover no-repeat;
  border-radius: 40px 35px 45px 38px / 38px 45px 35px 40px;
  border: 3px solid var(--animal-text-primary);
  box-shadow: 0 6px 0 0 var(--animal-shadow-btn), 0 14px 30px rgba(107,92,67,0.20);
  padding: 38px 40px;
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  margin-bottom: 28px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; right: 14px; bottom: 10px;
  width: 120px; height: 120px;
  background: url('assets/nook-phone/Property-Helicopter.svg') center/contain no-repeat;
  opacity: 0.85; pointer-events: none;
}
.hero h1 {
  color: #fff;
  text-shadow: 2px 3px 0 var(--animal-text-primary), 0 4px 12px rgba(0,0,0,0.20);
  font-size: 2.5rem; margin: 0; font-weight: 900;
  letter-spacing: 0.02em;
}
.hero p {
  color: #fff;
  font-size: 1.1rem; font-weight: 700;
  text-shadow: 1px 2px 0 rgba(121,79,39,0.55);
  margin: 8px 0 0;
}
.hero .mascot {
  width: 120px; height: 120px; flex-shrink: 0;
  background: var(--animal-bg-content);
  border-radius: 50%;
  border: 3px solid var(--animal-text-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 4.2rem;
  box-shadow: 0 5px 0 0 var(--animal-shadow-btn);
  animation: animal-bobble 3.5s ease-in-out infinite;
}
@keyframes animal-bobble {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-8px) rotate(3deg); }
}

/* ---------- Card · 默认羊皮纸内容卡 ---------- */
.card {
  background: var(--animal-bg-content);
  border-radius: var(--animal-radius-lg);
  border: 2px solid var(--animal-border);
  box-shadow: 0 4px 10px rgba(107, 92, 67, 0.30);
  padding: 24px 26px;
  margin-bottom: 22px;
  transition: var(--animal-transition);
}
.card:hover {
  box-shadow: 0 8px 24px rgba(114, 93, 66, 0.18);
}
.card.title-card {
  border-radius: 40px 35px 45px 38px / 38px 45px 35px 40px;
  background: linear-gradient(180deg, #fff 0%, var(--animal-bg-content) 100%);
}

/* ---------- NookPhone 风订阅卡（首页顶部装饰卡） ---------- */
.nookphone-card {
  background: var(--animal-bg-content);
  border: 2.5px solid var(--animal-border);
  border-radius: 36px;
  padding: 22px 26px;
  margin-bottom: 24px;
  position: relative;
  box-shadow: 0 5px 0 0 var(--animal-shadow-btn), 0 12px 24px rgba(107,92,67,0.18);
  display: flex; gap: 22px; align-items: flex-start; flex-wrap: wrap;
}
.nookphone-card::before {
  content: ""; position: absolute; right: -18px; top: -22px;
  width: 96px; height: 96px;
  background: url('assets/nook-phone/Property-Shopping.svg') center/contain no-repeat;
  opacity: 0.9; transform: rotate(8deg);
  pointer-events: none;
}
.nookphone-card .np-icon {
  width: 78px; height: 78px; flex-shrink: 0;
  background: var(--np-blue); border-radius: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  border: 2.5px solid var(--animal-text-primary);
  box-shadow: 0 4px 0 0 var(--animal-shadow-btn);
}
.nookphone-card .np-body { flex: 1; min-width: 220px; }
.nookphone-card h2 { margin: 0 0 6px; }

/* ---------- Device 网格 · AppIcons 风 ---------- */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 22px;
  margin-top: 22px;
}
.device-card {
  background: var(--animal-bg-content);
  border: 2.5px solid var(--animal-border);
  border-radius: 28px;
  padding: 22px 16px 18px;
  text-align: center;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  box-shadow: 0 5px 0 0 var(--animal-shadow-btn);
  transition: var(--animal-transition);
  position: relative;
  color: var(--animal-text-body);
  text-decoration: none;
}
.device-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 9px 0 0 var(--animal-shadow-btn), 0 14px 28px rgba(107,92,67,0.18);
  text-decoration: none;
}
.device-card:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 var(--animal-shadow-btn);
}
.device-card .emoji {
  width: 72px; height: 72px;
  border-radius: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  background: rgba(255,255,255,0.5);
  border: 2px solid var(--animal-text-primary);
  box-shadow: 0 3px 0 0 var(--animal-shadow-btn);
  margin-top: 2px;
}
.device-card .name {
  font-weight: 800; font-size: 1.05rem;
  color: var(--animal-text-primary);
  letter-spacing: 0.01em;
}
.device-card .desc {
  font-size: 0.82rem; color: var(--animal-text-muted);
  font-weight: 600;
}
.device-card.detected {
  border-color: var(--animal-primary);
}
.device-card.detected::after {
  content: "✨ 像是你的设备";
  position: absolute; top: -12px; right: -8px;
  background: var(--animal-focus-yellow);
  color: var(--animal-text-body);
  padding: 4px 12px;
  border-radius: var(--animal-radius-pill);
  font-size: 0.72rem; font-weight: 700;
  border: 2px solid var(--animal-text-primary);
  box-shadow: 0 2px 0 0 var(--animal-shadow-btn);
}

/* 每个设备图标用 NookPhone 调色板 */
.device-card[data-color="pink"]   .emoji { background: var(--np-pink); }
.device-card[data-color="purple"] .emoji { background: var(--np-purple); }
.device-card[data-color="blue"]   .emoji { background: var(--np-blue); }
.device-card[data-color="yellow"] .emoji { background: var(--np-yellow); }
.device-card[data-color="orange"] .emoji { background: var(--np-orange); }
.device-card[data-color="teal"]   .emoji { background: var(--np-teal); }
.device-card[data-color="green"]  .emoji { background: var(--np-green); }
.device-card[data-color="red"]    .emoji { background: var(--np-red); }
.device-card[data-color="lime"]   .emoji { background: var(--np-lime); }
.device-card[data-color="brown"]  .emoji { background: var(--np-brown); color: #fff; }

/* ---------- Button · Nintendo 立体 pill ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 45px; padding: 0 22px;
  background: var(--animal-primary);
  color: #fff;
  font-family: var(--animal-font);
  font-weight: 700; font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: none;
  border-radius: var(--animal-radius-pill);
  cursor: pointer;
  box-shadow: 0 5px 0 0 var(--animal-primary-active);
  transition: var(--animal-transition);
  text-decoration: none;
  line-height: 1;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 0 0 var(--animal-primary-active);
  background: var(--animal-primary-hover);
  color: #fff; text-decoration: none;
}
.btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 var(--animal-primary-active);
}
.btn:focus-visible {
  outline: 2px solid var(--animal-primary);
  outline-offset: 2px;
}
.btn.btn-warm {
  background: var(--animal-focus-yellow);
  color: var(--animal-text-body);
  box-shadow: 0 5px 0 0 var(--animal-focus-yellow-dark);
}
.btn.btn-warm:hover { background: #ffd633; box-shadow: 0 6px 0 0 var(--animal-focus-yellow-dark); color: var(--animal-text-body); }
.btn.btn-warm:active { box-shadow: 0 1px 0 0 var(--animal-focus-yellow-dark); }
.btn.btn-ghost {
  background: var(--animal-bg-content);
  color: var(--animal-text-primary);
  border: 2.5px solid var(--animal-border);
  box-shadow: 0 5px 0 0 var(--animal-shadow-btn);
}
.btn.btn-ghost:hover { background: #fff; color: var(--animal-text-primary); box-shadow: 0 6px 0 0 var(--animal-shadow-btn); }
.btn.btn-ghost:active { box-shadow: 0 1px 0 0 var(--animal-shadow-btn); }
.btn.btn-sm {
  height: 32px; padding: 0 16px;
  font-size: 0.78rem;
  border-radius: 12px;
  box-shadow: 0 3px 0 0 var(--animal-primary-active);
}
.btn.btn-sm:hover { box-shadow: 0 4px 0 0 var(--animal-primary-active); }
.btn.btn-sm:active { box-shadow: 0 1px 0 0 var(--animal-primary-active); }

/* ---------- Tag / 难度标签 ---------- */
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 20px; }
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px;
  background: var(--animal-bg-content);
  border: 2px solid var(--animal-border-input);
  border-radius: var(--animal-radius-pill);
  font-size: 0.82rem; font-weight: 700;
  color: var(--animal-text-body);
  box-shadow: 0 2px 0 0 var(--animal-shadow-input);
  letter-spacing: 0.01em;
}
.tag.easy   { background: #e9f7d8; border-color: var(--animal-success); color: var(--animal-success-active); box-shadow: 0 2px 0 0 #b7d99a; }
.tag.medium { background: #fff3cf; border-color: var(--animal-warning); color: var(--animal-warning-active); box-shadow: 0 2px 0 0 #e0c870; }
.tag.hard   { background: #fcdada; border-color: var(--animal-error); color: var(--animal-error-active); box-shadow: 0 2px 0 0 #d99595; }
.tag.time   { background: var(--animal-primary-bg); border-color: var(--animal-primary); color: var(--animal-primary-active); box-shadow: 0 2px 0 0 #a8e0d8; }
.tag.app    { background: #f0e0ff; border-color: var(--np-purple); color: #5d3a8c; box-shadow: 0 2px 0 0 #d4c0e8; }

/* ---------- 步骤 ---------- */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 18px 0; }
.steps > li {
  position: relative;
  padding: 18px 20px 18px 70px;
  margin-bottom: 16px;
  background: #fff;
  border: 2.5px solid var(--animal-border-input);
  border-radius: var(--animal-radius-lg);
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  counter-increment: step;
}
.steps > li::before {
  content: counter(step);
  position: absolute; left: 16px; top: 16px;
  width: 40px; height: 40px;
  background: var(--animal-primary);
  color: #fff;
  border: 2.5px solid var(--animal-text-primary);
  border-radius: 50%;
  font-weight: 900; font-size: 1.15rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 0 0 var(--animal-primary-active);
}
.steps li h4 { margin: 0 0 6px; color: var(--animal-text-primary); }
.steps li p:last-child { margin-bottom: 0; }
.steps li img {
  max-width: 100%;
  border-radius: var(--animal-radius-md);
  border: 2px solid var(--animal-border-input);
  margin-top: 10px;
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
}

/* ---------- 订阅链接框（input 视觉） ---------- */
.sub-box {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  background: #fff;
  border: 2.5px solid var(--animal-border-input);
  border-radius: var(--animal-radius-pill);
  padding: 8px 10px 8px 22px;
  margin: 14px 0;
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  transition: var(--animal-transition);
}
.sub-box:focus-within {
  border-color: var(--animal-focus-yellow);
  box-shadow: 0 3px 0 0 var(--animal-focus-yellow-dark), 0 0 0 3px rgba(255,204,0,0.15);
}
.sub-box .url {
  flex: 1; min-width: 200px;
  font-family: 'SF Mono','Fira Code',Consolas,monospace;
  font-size: 0.86rem; color: var(--animal-text-body);
  font-weight: 600;
  overflow-x: auto; white-space: nowrap;
}
.sub-box .url.empty { color: var(--animal-text-placeholder); font-style: italic; font-weight: 500; }

/* ---------- 二维码 ---------- */
.qr-wrap {
  display: inline-block;
  padding: 14px;
  background: #fff;
  border: 2.5px solid var(--animal-border);
  border-radius: var(--animal-radius-lg);
  box-shadow: 0 4px 0 0 var(--animal-shadow-input);
  margin: 10px 0;
}
.qr-wrap canvas, .qr-wrap img { display: block; }
.qr-wrap .qr-empty {
  width: 180px; height: 180px;
  display: flex; align-items: center; justify-content: center;
  color: var(--animal-text-placeholder);
  font-size: 0.85rem; text-align: center;
  background: var(--animal-bg-content);
  border-radius: var(--animal-radius-md);
  font-weight: 600;
}

/* ---------- 提示框 ---------- */
.tip {
  border-left: 6px solid var(--animal-primary);
  background: var(--animal-primary-bg);
  padding: 14px 18px;
  border-radius: 0 var(--animal-radius-md) var(--animal-radius-md) 0;
  margin: 14px 0;
  font-size: 0.95rem;
  color: var(--animal-text-body);
}
.tip.warn { border-color: var(--animal-warning); background: #fff8e0; }
.tip.danger { border-color: var(--animal-error); background: #fde4e4; }
.tip strong { color: var(--animal-text-primary); }

/* ---------- App 下载卡 ---------- */
.app-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px; margin: 14px 0;
}
.app-card {
  background: #fff;
  border: 2.5px solid var(--animal-border-input);
  border-radius: var(--animal-radius-md);
  padding: 14px 16px;
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  display: flex; gap: 12px; align-items: center;
  text-decoration: none;
  color: var(--animal-text-body);
  transition: var(--animal-transition);
}
.app-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 0 0 var(--animal-shadow-input);
  text-decoration: none;
  border-color: var(--animal-primary);
}
.app-card .ico { font-size: 2rem; }
.app-card .info b {
  display: block;
  color: var(--animal-text-primary);
  font-weight: 800;
}
.app-card .info small { color: var(--animal-text-muted); font-size: 0.8rem; font-weight: 600; }

/* ---------- 返回首页按钮 ---------- */
.back-home {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: var(--animal-bg-content);
  color: var(--animal-text-primary);
  border: 2.5px solid var(--animal-border);
  border-radius: var(--animal-radius-pill);
  font-weight: 700;
  box-shadow: 0 3px 0 0 var(--animal-shadow-btn);
  text-decoration: none;
  font-size: 0.88rem;
  margin-bottom: 14px;
  transition: var(--animal-transition);
}
.back-home:hover {
  background: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 0 0 var(--animal-shadow-btn);
  color: var(--animal-text-primary);
}
.back-home:active { transform: translateY(2px); box-shadow: 0 1px 0 0 var(--animal-shadow-btn); }

/* ---------- Footer ---------- */
.footer {
  margin-top: 60px;
  padding: 40px 20px 60px;
  text-align: center;
  color: var(--animal-text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  background: url('assets/footer/footer-tree.webp') bottom center/cover no-repeat;
  min-height: 140px;
  position: relative;
}
.footer .paw { font-size: 1.4rem; margin: 0 6px; }
.footer small { display: inline-block; margin-top: 6px; }

/* ---------- Divider 装饰分割线 ---------- */
.divider {
  width: 100%; height: 14px;
  background: url('assets/dividers/divider-line-brown.svg') center/contain no-repeat;
  margin: 24px 0;
}
.divider.teal { background-image: url('assets/dividers/divider-line-teal.svg'); }
.divider.yellow { background-image: url('assets/dividers/divider-line-yellow.svg'); }
.divider.wave { background-image: url('assets/dividers/wave-yellow.svg'); }

/* ---------- FAQ Collapse ---------- */
details.faq {
  background: #fff;
  border: 2.5px solid var(--animal-border-input);
  border-radius: var(--animal-radius-md);
  padding: 14px 18px;
  margin-bottom: 12px;
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  transition: var(--animal-transition);
}
details.faq[open] {
  border-color: var(--animal-primary);
}
details.faq summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--animal-text-primary);
  padding: 4px 0;
  list-style: none;
  display: flex; align-items: center; gap: 10px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::before {
  content: "+";
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--animal-primary);
  color: #fff;
  font-weight: 900;
  font-size: 1.15rem;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
details.faq[open] summary::before { content: "−"; transform: rotate(180deg); }
details.faq[open] summary { color: var(--animal-primary-active); }
details.faq p:first-of-type { margin-top: 10px; }

/* ---------- 表格 ---------- */
table.simple {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  background: #fff;
  border-radius: var(--animal-radius-md);
  overflow: hidden;
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  border: 2px solid var(--animal-border-input);
}
table.simple th, table.simple td {
  padding: 11px 16px;
  text-align: left;
  border-bottom: 1px solid var(--animal-border-input);
}
table.simple th {
  background: var(--animal-bg-content);
  color: var(--animal-text-primary);
  font-weight: 800;
  letter-spacing: 0.01em;
}
table.simple tr:last-child td { border-bottom: none; }

/* ---------- input/textarea (focus = 黄色而非蓝色) ---------- */
input[type="text"], input[type="url"], input[type="email"], textarea {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
  font-family: var(--animal-font);
  font-weight: 500;
  color: var(--animal-text-body);
  background: #fff;
  border: 2.5px solid var(--animal-border-input);
  border-radius: var(--animal-radius-pill);
  box-shadow: 0 3px 0 0 var(--animal-shadow-input);
  outline: none;
  transition: var(--animal-transition);
}
textarea { height: auto; padding: 12px 18px; border-radius: var(--animal-radius-md); }
input:hover, textarea:hover { border-color: var(--animal-border-input-hover); }
input:focus, textarea:focus {
  border-color: var(--animal-focus-yellow);
  box-shadow: 0 3px 0 0 var(--animal-focus-yellow-dark), 0 0 0 3px rgba(255,204,0,0.15);
}
::placeholder { color: var(--animal-text-placeholder); font-weight: 400; }

/* ---------- Loading 岛屿 ---------- */
.loading-island {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  padding: 30px;
  color: var(--animal-text-muted);
  font-weight: 700;
}
.loading-island::before {
  content: "🏝️";
  font-size: 3.6rem;
  animation: animal-loading-bob 1.4s ease-in-out infinite;
}
@keyframes animal-loading-bob {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50%      { transform: translateY(-12px) rotate(6deg); }
}

/* ---------- Typewriter（首页大字效果，无 JS 也能近似） ---------- */
.typewriter {
  display: inline-block;
  letter-spacing: 0.04em;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--animal-bg-content); }
::-webkit-scrollbar-thumb {
  background: var(--animal-border-input);
  border-radius: var(--animal-radius-pill);
}
::-webkit-scrollbar-thumb:hover { background: var(--animal-border); }

/* ---------- 选中文本 ---------- */
::selection {
  background: var(--animal-focus-yellow);
  color: var(--animal-text-body);
}

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .hero h1 { font-size: 1.9rem; }
  .hero { padding: 26px 22px; border-radius: 32px; }
  .hero .mascot { width: 92px; height: 92px; font-size: 3.2rem; }
  .container { padding: 20px 14px 60px; }
  .navbar { padding: 10px 14px; }
  .navbar .logo { font-size: 1.05rem; }
  .navbar .nav-links a { padding: 6px 10px; font-size: 0.84rem; }
  .device-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .device-card { padding: 16px 10px 14px; border-radius: 22px; }
  .device-card .emoji { width: 60px; height: 60px; font-size: 2.1rem; border-radius: 18px; }
  .device-card .name { font-size: 0.92rem; }
  .device-card .desc { font-size: 0.74rem; }
  .nookphone-card { padding: 18px 18px; border-radius: 28px; }
  .nookphone-card::before { width: 70px; height: 70px; right: -6px; top: -14px; }
  .card { padding: 18px 18px; }
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.35rem; }
}

/* ===================================================== *
 * 官方动态壁纸 v0.3 (2026-05-16)                          *
 * 1:1 复刻 animal-island-ui demo/App.tsx 的 homeBg        *
 * ===================================================== */

body.home {
  background: url('assets/home_bg.webp') 0 0 / auto repeat, #7DC395;
  animation: bgScroll 80s linear infinite;
}
@keyframes bgScroll {
  0%   { background-position: 100% 0%; }
  100% { background-position: 0% 100%; }
}

/* 章节标题前脉动点 */
.container h2::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--animal-primary, #19c8b9);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
  box-shadow: 0 2px 0 #11a89b;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.35); opacity: 0.7; }
}

/* 卡片 hover 上浮 */
.device-card, .nookphone-card, .card {
  transition: transform 0.25s cubic-bezier(.34,1.56,.64,1), box-shadow 0.25s;
}
.device-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(114, 93, 66, 0.18);
}
.device-card:hover .icon,
.device-card:hover img {
  animation: iconBounce 0.5s ease;
}
@keyframes iconBounce {
  0%   { transform: translateY(0) scale(1); }
  35%  { transform: translateY(-12px) scale(1.06); }
  70%  { transform: translateY(0) scale(0.96); }
  100% { transform: translateY(0) scale(1); }
}

/* mascot 狐狸轻 bobble */
.mascot, .navbar .badge {
  display: inline-block;
  animation: mascotBobble 2.8s ease-in-out infinite;
  transform-origin: bottom center;
}
@keyframes mascotBobble {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-6px) rotate(3deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ===================================================== *
 * 按钮颜色修正 v0.3 · 严格按官方 .btn-primary             *
 * 官方主按钮 = 米黄底 + 棕字 + 灰立体阴影                   *
 * 薄荷青只用于强调（tag/link/dot）, 不作按钮主色              *
 * ===================================================== */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 45px; padding: 0 22px;
  background: #f8f8f0;
  color: #794f27;
  border: 2px solid #f8f8f0;
  font-family: var(--animal-font, "Nunito", "Noto Sans SC", "Zen Maru Gothic", sans-serif);
  font-weight: 700; font-size: 0.95rem; letter-spacing: 0.02em;
  border-radius: 50px;
  box-shadow: 0 5px 0 0 #bdaea0;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover:not(:disabled) {
  background: #f8f8f0;
  border-color: #f8f8f0;
  transform: translateY(-1px);
  box-shadow: 0 6px 0 0 #bdaea0;
  color: #794f27;
}
.btn:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 #bdaea0;
}
.btn:focus-visible {
  outline: 3px solid #ffcc00;
  outline-offset: 2px;
}

/* 警告/亮按钮 = focus yellow */
.btn.btn-warm,
.btn.btn-warning {
  background: #ffcc00;
  border-color: #ffcc00;
  color: #725d42;
  box-shadow: 0 5px 0 0 #e0b800;
}
.btn.btn-warm:hover, .btn.btn-warning:hover { box-shadow: 0 6px 0 0 #e0b800; transform: translateY(-1px); background: #ffd633; border-color: #ffd633; }
.btn.btn-warm:active, .btn.btn-warning:active { box-shadow: 0 1px 0 0 #e0b800; }

/* 危险按钮 = 错误红 */
.btn.btn-danger {
  background: #e05a5a;
  border-color: #e05a5a;
  color: #fff;
  box-shadow: 0 5px 0 0 #b04545;
}
.btn.btn-danger:hover { box-shadow: 0 6px 0 0 #b04545; transform: translateY(-1px); }
.btn.btn-danger:active { box-shadow: 0 1px 0 0 #b04545; }

/* 幽灵透明按钮 = .btn-text */
.btn.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: #794f27;
  box-shadow: none;
}
.btn.btn-ghost:hover { background: rgba(247, 243, 223, 0.6); box-shadow: none; }

/* 小尺寸 */
.btn.btn-sm {
  height: 36px;
  padding: 0 16px;
  font-size: 0.85rem;
  box-shadow: 0 4px 0 0 #bdaea0;
}
.btn.btn-sm:hover { box-shadow: 0 5px 0 0 #bdaea0; }
.btn.btn-sm:active { box-shadow: 0 1px 0 0 #bdaea0; }

/* .btn-primary 别名（教程页直接下载按钮使用） */
.btn.btn-primary {
  background: #19c8b9;
  border-color: #19c8b9;
  color: #fff;
  box-shadow: 0 5px 0 0 #11a89b;
}
.btn.btn-primary:hover { background: #3dd4c6; border-color: #3dd4c6; color: #fff; box-shadow: 0 6px 0 0 #11a89b; }
.btn.btn-primary:active { box-shadow: 0 1px 0 0 #11a89b; }

/* 下载按钮组：多按钮换行 + 旁注小字 */
.download-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  align-items: center;
  margin: 14px 0 10px;
}
.download-row .meta-note {
  font-size: 0.82rem;
  color: var(--animal-text-muted);
  font-weight: 600;
}