/* 高情商辅助聊天 官网 — 暖粉×深色，移动优先 */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #17141c;
  --bg-alt: #1e1a26;
  --card: #241f30;
  --ink: #f4f0f8;
  --sub: #b3aabf;
  --pink: #f06292;
  --pink-strong: #ff7fa5;
  --pink-dim: rgba(240, 98, 146, 0.14);
  --line: rgba(255, 255, 255, 0.08);
  --good: #7bd88f;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* 顶部导航 */
.topnav {
  position: sticky; top: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px;
  background: rgba(23, 20, 28, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 15px; }
.navlinks a {
  color: var(--sub); text-decoration: none; font-size: 14px; margin-left: 16px;
}
.navlinks a.nav-dl {
  color: var(--bg); background: var(--pink); padding: 5px 14px; border-radius: 999px; font-weight: 600;
}

/* Hero */
.hero {
  text-align: center;
  padding: 72px 20px 56px;
  background:
    radial-gradient(600px 300px at 50% -60px, rgba(240, 98, 146, 0.18), transparent 70%),
    var(--bg);
}
.hero-badge {
  display: inline-block; font-size: 13px; color: var(--pink-strong);
  border: 1px solid rgba(240, 98, 146, 0.4); border-radius: 999px;
  padding: 5px 14px; margin-bottom: 22px; background: var(--pink-dim);
}
.hero h1 { font-size: clamp(26px, 6vw, 40px); line-height: 1.35; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--pink-strong); }
.hero-sub { color: var(--sub); margin: 18px auto 28px; max-width: 560px; font-size: 15.5px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13.5px; color: var(--sub); }
.hero-note b { color: var(--good); }

/* 按钮 */
.btn {
  display: inline-block; text-decoration: none; text-align: center;
  border-radius: 12px; padding: 12px 26px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: transform 0.12s ease, filter 0.12s ease;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--pink); color: #fff; box-shadow: 0 6px 24px rgba(240, 98, 146, 0.35); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-big { padding: 16px 40px; font-size: 17px; }

/* 通用段落 */
.section { max-width: 880px; margin: 0 auto; padding: 56px 20px; }
.section-alt { background: var(--bg-alt); max-width: none; }
.section-alt > * { max-width: 880px; margin-left: auto; margin-right: auto; }
.section h2 { font-size: clamp(22px, 4.5vw, 28px); margin-bottom: 10px; }
.lead { color: var(--sub); margin-bottom: 24px; }

/* intro */
.intro-grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 20px; }
.intro-item { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; display: grid; gap: 4px; }
.intro-item b { font-size: 16px; }
.intro-item span { color: var(--sub); font-size: 14.5px; }

/* 功能卡片 */
.cards { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
.card {
  position: relative;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px;
}
.card-new { border-color: rgba(240, 98, 146, 0.55); }
.new-tag {
  position: absolute; top: 14px; right: 14px;
  font-size: 11.5px; font-weight: 700; color: var(--bg);
  background: var(--pink-strong); padding: 3px 10px; border-radius: 999px;
}
.card-ico { font-size: 26px; margin-bottom: 8px; }
.card h3 { font-size: 16.5px; margin-bottom: 6px; }
.card p { color: var(--sub); font-size: 14.5px; }

/* 收费 */
.price-free { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
.price-block { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.price-block h3 { font-size: 16px; color: var(--sub); font-weight: 600; }
.price-num { font-size: 30px; font-weight: 800; color: var(--pink-strong); margin: 6px 0 10px; }
.price-block ul { list-style: none; }
.price-block li { font-size: 14.5px; color: var(--sub); padding: 4px 0 4px 20px; position: relative; }
.price-block li::before { content: "✓"; position: absolute; left: 0; color: var(--good); }
.price-block li b { color: var(--ink); }
.pack-title { margin: 30px 0 14px; font-size: 17px; }
.packs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pack {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 12px; display: grid; gap: 2px; text-align: center; position: relative;
}
.pack-price { font-size: 21px; font-weight: 800; color: var(--ink); }
.pack-tokens { font-size: 13.5px; color: var(--sub); }
.pack-best { border-color: rgba(240, 98, 146, 0.55); }
.best-tag {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  font-size: 11px; font-weight: 700; color: var(--bg);
  background: var(--pink-strong); padding: 2px 10px; border-radius: 999px; white-space: nowrap;
}
.price-note { margin-top: 18px; font-size: 13px; color: var(--sub); }

/* 充值步骤 */
.recharge-steps { display: grid; gap: 10px; margin-top: 22px; }
.rstep {
  display: flex; gap: 14px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px;
}
.rstep b {
  flex: none; width: 30px; height: 30px; border-radius: 999px;
  background: var(--pink-dim); color: var(--pink-strong);
  display: grid; place-items: center; font-size: 14px;
}
.rstep span { font-size: 14.5px; }
.wechat-box {
  margin-top: 18px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--card); border: 1px dashed rgba(240, 98, 146, 0.5); border-radius: 14px; padding: 16px 20px;
}
.wechat-label { font-size: 14px; color: var(--sub); }
.wechat-id { font-size: 19px; font-weight: 800; color: var(--pink-strong); letter-spacing: 0.5px; }
.btn-copy { padding: 7px 18px; font-size: 13.5px; }

/* 下载 */
.dl-box {
  margin-top: 22px; background: var(--card); border: 1px solid var(--line);
  border-radius: 18px; padding: 28px 22px; text-align: center;
}
.dl-meta { display: grid; gap: 4px; margin-bottom: 18px; }
.dl-meta span:first-child { font-size: 17px; font-weight: 700; }
.dl-meta span:last-child { color: var(--sub); font-size: 13.5px; }
.dl-tip { margin-top: 16px; font-size: 13px; color: var(--sub); }

/* 页脚 */
.footer {
  text-align: center; padding: 36px 20px 44px; color: var(--sub); font-size: 12.5px;
  border-top: 1px solid var(--line); display: grid; gap: 6px;
}
.beian a { color: var(--sub); text-decoration: none; }

/* 桌面端 */
@media (min-width: 640px) {
  .intro-grid { grid-template-columns: repeat(3, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .price-free { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}