/* ============================================================
   智趣岛 · 即将启航主页（精简版）
   留白 + 设计感：居中英雄区、漂浮装饰、吉祥物、柔和渐变
   ============================================================ */

:root {
  --sky: #29B6F6;
  --sky-light: #4FC3F7;
  --sun: #FFCA28;
  --coral: #FF7043;
  --mint: #66BB6A;
  --ink: #2b2b3a;
  --muted: #6b6b7b;
  --radius: 22px;
  --shadow: 0 12px 28px rgba(41, 182, 246, 0.18);
  --shadow-strong: 0 18px 40px rgba(41, 182, 246, 0.28);
  --font-cn: "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Baloo 2", "ZCOOL KuaiLe", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-cn);
  color: var(--ink);
  overflow-x: hidden;
  background:
    radial-gradient(1000px 600px at 85% -10%, #fff3c4 0%, transparent 55%),
    radial-gradient(900px 500px at -10% 5%, #d7f2ff 0%, transparent 50%),
    linear-gradient(180deg, #eaf7ff 0%, #fef6ff 55%, #fffdf7 100%);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ---------- 顶部 ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(16px, 4vw, 48px);
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.5rem; }
.brand-logo { font-size: 1.8rem; }
.brand-name { color: var(--sky); letter-spacing: 1px; }
.soon-tag {
  background: #fff;
  color: var(--coral);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .95rem;
  box-shadow: var(--shadow);
}

/* ---------- 舞台 / 英雄区 ---------- */
.stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px clamp(16px, 4vw, 48px) 40px;
  overflow: hidden;
}
.hero {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
}
.hero-mascot { display: flex; justify-content: center; margin-bottom: 10px; }
.hero-mascot svg {
  animation: bob 3.6s ease-in-out infinite;
  filter: drop-shadow(0 16px 22px rgba(0,0,0,.12));
}
@keyframes bob { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-12px) rotate(1deg); } }

/* 中央 App 图标占位：发布时替换为真实图标 */
.icon-slot {
  width: clamp(120px, 30vw, 180px);
  height: clamp(120px, 30vw, 180px);
  margin: 0 auto 18px;
  border-radius: 34px;
  border: 3px dashed rgba(41, 182, 246, .45);
  background: rgba(255, 255, 255, .5);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: rgba(41, 182, 246, .55);
  animation: slotPulse 3s ease-in-out infinite;
}
.slot-plus { font-size: 2.6rem; line-height: 1; font-weight: 700; }
.slot-label { font-size: .95rem; letter-spacing: 1px; }
.app-name {
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  color: var(--sky);
  margin: 0 0 10px;
  letter-spacing: 3px;
  text-shadow: 0 4px 0 #ffe082, 0 8px 18px rgba(41,182,246,.2);
}
@keyframes slotPulse {
  0%, 100% { transform: scale(1); border-color: rgba(41, 182, 246, .45); }
  50% { transform: scale(1.03); border-color: rgba(41, 182, 246, .7); }
}

/* ---------- 按钮（预留，当前静态页未使用） ---------- */

.hero-note { margin: 16px 0 0; color: var(--muted); font-size: 1rem; }

/* ---------- 漂浮装饰 ---------- */
.deco { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.bubble {
  position: absolute;
  font-size: 2rem;
  opacity: .75;
  animation: floaty 7s ease-in-out infinite;
}
.b1 { top: 12%; left: 8%; animation-delay: 0s; }
.b2 { top: 22%; right: 10%; animation-delay: 1.2s; font-size: 2.6rem; }
.b3 { bottom: 18%; left: 12%; animation-delay: 2.4s; font-size: 2.4rem; }
.b4 { bottom: 14%; right: 14%; animation-delay: 3.1s; }
.b5 { top: 46%; left: 4%; animation-delay: 4s; font-size: 2.2rem; }
@keyframes floaty { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-16px) rotate(8deg); } }

/* ---------- 页脚 ---------- */
.site-footer {
  text-align: center;
  padding: 22px 16px;
  color: var(--muted);
  font-size: .92rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 600px) {
  .bubble { font-size: 1.5rem; }
  .b2, .b3, .b5 { font-size: 1.8rem; }
}

/* 极窄屏：收缩顶栏，避免品牌名与标签拥挤 */
@media (max-width: 480px) {
  .site-header { padding: 14px 16px; }
  .brand { font-size: 1.3rem; }
  .brand-logo { font-size: 1.5rem; }
  .soon-tag { font-size: .82rem; padding: 6px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .icon-slot { transform: none; }
}