/* ===================================================================
 * LumiPet 下载激活页 —— 高级感主题（深色极光 + 玻璃拟态）
 * =================================================================== */
:root {
  color-scheme: dark;
  --bg-0: #0b0a16;
  --bg-1: #100e1f;
  --ink: #f4f2ff;
  --ink-soft: #c8c5e0;
  --muted: #8e8aa8;
  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(255, 255, 255, 0.18);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.07);

  --violet: #8b7bff;
  --violet-2: #b388ff;
  --pink: #ff9ed2;
  --accent-grad: linear-gradient(120deg, #7c6cff 0%, #b06bff 50%, #ff8fc7 100%);

  --android: #34d399;
  --android-2: #10b981;
  --wechat: #07c160;
  --alipay: #1098ff;

  --radius: 22px;
  --shadow-card: 0 24px 60px -24px rgba(0, 0, 0, 0.7), 0 2px 0 rgba(255, 255, 255, 0.04) inset;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(140% 120% at 50% -10%, var(--bg-1) 0%, var(--bg-0) 55%, #07060f 100%);
  color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* 极光背景 */
.aurora {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.aurora::before, .aurora::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55;
}
.aurora::before {
  width: 60vw; height: 60vw; left: -12vw; top: -16vw;
  background: radial-gradient(circle, rgba(124, 108, 255, 0.55), transparent 65%);
}
.aurora::after {
  width: 55vw; height: 55vw; right: -14vw; top: -6vw;
  background: radial-gradient(circle, rgba(255, 143, 199, 0.4), transparent 65%);
}

.wrap { position: relative; z-index: 1; width: min(1080px, 100%); margin: 0 auto; padding: 22px clamp(16px, 4vw, 30px) 60px; }

/* 顶栏 */
.nav { display: flex; align-items: center; justify-content: space-between; height: 52px; margin-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 11px; }
.mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 900; font-size: 19px; color: #fff;
  background: var(--accent-grad);
  box-shadow: 0 8px 22px -6px rgba(140, 110, 255, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}
.brand-name { font-weight: 800; font-size: 19px; letter-spacing: 0.2px; }
.nav-tag { color: var(--muted); font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; }

/* Hero */
.hero { text-align: center; padding: 30px 0 38px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px; border-radius: 999px;
  background: var(--glass); border: 1px solid var(--line-strong); color: var(--ink-soft);
  font-size: 12.5px; font-weight: 700; backdrop-filter: blur(8px);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--violet-2); box-shadow: 0 0 10px var(--violet-2); }
h1 {
  font-size: clamp(32px, 7vw, 58px); line-height: 1.08; margin: 20px auto 16px; max-width: 14em;
  font-weight: 850; letter-spacing: -0.5px;
}
h1 em {
  font-style: normal;
  background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: clamp(15px, 2.4vw, 18px); color: var(--ink-soft); max-width: 34em; margin: 0 auto; }
.lead b { color: var(--ink); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; justify-content: center; margin-top: 22px; color: var(--muted); font-size: 13px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* 区块通用 */
.block { margin: 14px 0 40px; }
.block-head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.step-badge {
  width: 34px; height: 34px; flex: none; border-radius: 11px; display: grid; place-items: center;
  font-weight: 900; font-size: 16px; color: #fff; background: var(--accent-grad);
  box-shadow: 0 6px 18px -6px rgba(140, 110, 255, 0.7);
}
.block-head h2 { margin: 0; font-size: clamp(19px, 3vw, 24px); font-weight: 800; letter-spacing: -0.2px; }
.block-head .sub, .sub { color: var(--muted); font-size: 13.5px; margin: 3px 0 0; }
.sub.center { text-align: center; }

/* 玻璃卡片基底 */
.dl-card, .activate, .step {
  background: linear-gradient(180deg, var(--glass-2), var(--glass));
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-card); backdrop-filter: blur(14px);
}

/* 下载卡片 */
.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.dl-card { position: relative; overflow: hidden; padding: 26px; display: flex; flex-direction: column; gap: 15px; }
.dl-glow { position: absolute; inset: -1px -1px auto -1px; height: 130px; pointer-events: none; opacity: 0.5; }
.dl-card.android .dl-glow { background: radial-gradient(120% 80% at 20% 0%, rgba(52, 211, 153, 0.28), transparent 70%); }
.dl-card.ios .dl-glow { background: radial-gradient(120% 80% at 20% 0%, rgba(160, 170, 200, 0.22), transparent 70%); }
.dl-card:hover { border-color: var(--line-strong); }
.dl-head { display: flex; align-items: center; gap: 14px; position: relative; }
.dl-icon { width: 54px; height: 54px; flex: none; border-radius: 16px; display: grid; place-items: center; font-size: 27px; color: #fff; }
.dl-icon.android { background: linear-gradient(145deg, var(--android), var(--android-2)); box-shadow: 0 10px 26px -10px rgba(16, 185, 129, 0.8); }
.dl-icon.ios {
  color: #f5f7ff;
  background: linear-gradient(160deg, #6b7390 0%, #3a3f57 45%, #20243a 100%);
  box-shadow: 0 10px 26px -10px rgba(120, 130, 170, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}
.dl-card h3 { margin: 0; font-size: 19px; font-weight: 800; }
.dl-card .ver { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.dl-desc { color: var(--ink-soft); font-size: 13.5px; margin: 0; min-height: 3.1em; position: relative; }

.btn {
  height: 52px; border-radius: 15px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-weight: 800; font-size: 15.5px; cursor: pointer; border: 1px solid transparent; position: relative;
  transition: transform 0.12s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.btn:active { transform: translateY(1px) scale(0.995); }
.btn-android { color: #04130d; background: linear-gradient(145deg, #4ee6a8, var(--android-2)); box-shadow: 0 14px 30px -12px rgba(16, 185, 129, 0.85); }
.btn-android:hover { filter: brightness(1.05); box-shadow: 0 18px 36px -12px rgba(16, 185, 129, 0.95); }
/* 苹果按钮：精致石墨渐变 + 顶部高光，不再是死黑 */
.btn-ios {
  color: #fff;
  background: linear-gradient(160deg, #4a5273 0%, #2c3147 55%, #1b1f30 100%);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 14px 30px -14px rgba(0, 0, 0, 0.9), 0 1px 0 rgba(255, 255, 255, 0.22) inset;
}
.btn-ios:hover { filter: brightness(1.1); }

/* 下载帮助折叠 */
.dl-help { margin-top: -2px; }
.dl-help summary { cursor: pointer; color: var(--muted); font-size: 12.5px; list-style: none; user-select: none; }
.dl-help summary::-webkit-details-marker { display: none; }
.dl-help summary::before { content: "› "; }
.dl-help[open] summary::before { content: "⌄ "; }
.dl-help summary:hover { color: var(--ink-soft); }
.dl-help-body { margin-top: 12px; padding: 14px; border-radius: 14px; background: rgba(0, 0, 0, 0.22); border: 1px solid var(--line); }
.dl-help-body p { margin: 0 0 10px; font-size: 13px; color: var(--ink-soft); }
.dl-help-body ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); font-size: 12.5px; line-height: 1.9; }
.dl-help-body ul b { color: var(--ink-soft); }
.mini-btn {
  display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 16px; margin: 0 8px 8px 0;
  border-radius: 11px; border: 1px solid var(--line-strong); background: var(--glass-2); color: var(--ink);
  font-size: 13px; font-weight: 700; cursor: pointer;
}
.mini-btn:hover { background: var(--glass); }

/* 付款 / 激活 */
.activate { padding: clamp(22px, 4vw, 32px); }
.price-row { display: flex; align-items: baseline; gap: 12px; justify-content: center; }
.price {
  font-size: clamp(34px, 7vw, 46px); font-weight: 900; letter-spacing: -1px;
  background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.price-note { color: var(--muted); font-size: 13px; }

.qr-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 24px auto 8px; max-width: 580px; }
.qr-card { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: rgba(0, 0, 0, 0.25); }
.qr-card .qr-top { padding: 12px; font-weight: 800; color: #fff; text-align: center; font-size: 14px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.qr-card .qr-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, 0.9); }
.qr-card.wechat .qr-top { background: linear-gradient(135deg, #11d36e, var(--wechat)); }
.qr-card.alipay .qr-top { background: linear-gradient(135deg, #34abff, var(--alipay)); }
.qr-img { padding: 14px; background: #fff; display: flex; align-items: center; justify-content: center; }
/* 两张收款码源图宽高比不同会一高一低；统一宽高比 + contain 居中，使两卡等高对齐（白底留边、不裁内容）。 */
.qr-card img { display: block; width: 100%; aspect-ratio: 7 / 10; object-fit: contain; background: #fff; border-radius: 8px; }
.qr-card .qr-foot { padding: 11px 12px 13px; color: var(--muted); font-size: 12px; text-align: center; }

.hint { color: var(--ink-soft); font-size: 13px; text-align: center; margin: 16px auto 0; max-width: 34em; }

/* 领码表单 */
.claim { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 24px; }
.claim h3 { margin: 0 0 4px; font-size: 17px; text-align: center; font-weight: 800; }
.form { display: grid; gap: 14px; max-width: 420px; margin: 18px auto 0; }
.field { display: grid; gap: 7px; }
.field label { font-size: 13px; font-weight: 700; color: var(--ink-soft); }
.field input {
  height: 52px; border: 1px solid var(--line-strong); border-radius: 14px; padding: 0 16px;
  font-size: 17px; letter-spacing: 1px; background: rgba(0, 0, 0, 0.28); color: var(--ink); width: 100%;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.field input::placeholder { color: var(--muted); letter-spacing: 0; }
.field input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 4px rgba(139, 123, 255, 0.18); }
.submit-btn {
  height: 54px; border: 0; border-radius: 15px; color: #fff; font-weight: 800; font-size: 16.5px; cursor: pointer;
  background: var(--accent-grad); background-size: 160% 160%;
  box-shadow: 0 16px 34px -14px rgba(140, 110, 255, 0.9);
  transition: transform 0.12s ease, filter 0.2s ease;
}
.submit-btn:hover { filter: brightness(1.06); }
.submit-btn:active { transform: translateY(1px); }
.submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.result { margin: 18px auto 0; max-width: 420px; border-radius: 16px; padding: 16px 18px; display: none; font-size: 14px; line-height: 1.7; }
.result.show { display: block; }
.result.pending { background: rgba(255, 196, 71, 0.1); border: 1px solid rgba(255, 196, 71, 0.32); color: #ffd98a; }
.result.done { background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.32); color: #7ef0c0; }
.result.error { background: rgba(255, 99, 110, 0.1); border: 1px solid rgba(255, 99, 110, 0.32); color: #ff9ea4; }
.result b { color: #fff; }
.code-box {
  margin-top: 12px; font-size: 25px; font-weight: 900; letter-spacing: 2px; text-align: center; user-select: all;
  background: rgba(0, 0, 0, 0.35); border: 1px dashed rgba(126, 240, 192, 0.55); border-radius: 14px; padding: 14px; color: #aaf7d4;
  word-break: break-all;
}
.copy-btn { margin-top: 12px; width: 100%; height: 46px; border: 1px solid rgba(126, 240, 192, 0.4); border-radius: 13px; background: rgba(52, 211, 153, 0.12); color: #aaf7d4; font-weight: 800; cursor: pointer; }
.copy-btn:hover { background: rgba(52, 211, 153, 0.2); }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 8px; }
.step { padding: 20px; position: relative; }
.step .s-num { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 9px; background: var(--glass-2); border: 1px solid var(--line-strong); color: var(--violet-2); font-weight: 900; font-size: 14px; margin-bottom: 12px; }
.step b { display: block; margin-bottom: 5px; font-size: 15px; }
.step span { color: var(--muted); font-size: 13px; }

/* 页脚 */
.foot { text-align: center; color: var(--muted); font-size: 12.5px; margin-top: 40px; line-height: 1.9; }
.foot b { color: var(--ink-soft); }
.foot .copyright { margin-top: 14px; opacity: 0.7; }

/* 安卓按钮点击后的“下载已开始”反馈态 */
.btn-android.is-downloading { opacity: 0.7; cursor: progress; pointer-events: none; }

@media (max-width: 760px) {
  .downloads { grid-template-columns: 1fr; }
  .qr-row { grid-template-columns: 1fr; max-width: 300px; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 18px 0 28px; }
}