/* ============================================================
   元气堡 · 官网样式系统（单一真源）
   紫色夜空渐变 + 粉色玻璃拟态，与元气堡 App（紫色玻璃）同一套语言
   ============================================================ */

:root {
  --bg-0: #0a0015;
  --bg-1: #1a0030;
  --bg-2: #2d0040;
  --pink: #f8bbda;
  --pink-strong: #ffa8d4;
  --magenta: #e879f9;
  --purple: #a855f7;
  --violet: #7c3aed;
  --ink: #f7eefb;
  --ink-dim: rgba(247, 238, 251, 0.68);
  --ink-faint: rgba(247, 238, 251, 0.44);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.07);
  --line: rgba(248, 187, 218, 0.18);
  --line-soft: rgba(255, 255, 255, 0.08);
  --r-lg: 26px;
  --r-md: 16px;
  --r-sm: 10px;
  --shadow: 0 24px 70px -30px rgba(0, 0, 0, 0.85);
  --glow-pink: 0 0 0 1px rgba(248, 187, 218, 0.22), 0 18px 60px -22px rgba(232, 121, 249, 0.55);
  --maxw: 1180px;
  --font: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
  overflow-x: hidden;
}

/* 夜空背景 + 粒子层（canvas 由 site.js 注入） */
#sky {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-wrap {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 78% -8%, rgba(232, 121, 249, 0.22), transparent 60%),
    radial-gradient(900px 500px at 8% 12%, rgba(168, 85, 247, 0.18), transparent 62%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 46%, var(--bg-2) 100%);
}

.page { position: relative; z-index: 1; }

a { color: var(--pink); text-decoration: none; }
a:hover { color: var(--pink-strong); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 820px; margin: 0 auto; padding: 0 22px; }

/* ── 顶栏 ─────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(18px) saturate(140%);
  background: linear-gradient(180deg, rgba(10, 0, 21, 0.82), rgba(10, 0, 21, 0.42));
  border-bottom: 1px solid var(--line-soft);
}

.nav-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 22px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: 0.2px; }
.brand img { width: 34px; height: 34px; border-radius: 10px; display: block; }
.brand b { font-size: 18px; }
.brand span { font-size: 12px; color: var(--ink-faint); font-weight: 500; }

.nav-links { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--ink-dim); font-size: 14.5px; }
.nav-links a:hover { color: var(--ink); }

/* ── 按钮 ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.2s ease, background 0.2s ease;
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  color: #2a0a1e;
  background: linear-gradient(135deg, #ffd9ec 0%, var(--pink) 42%, var(--magenta) 100%);
  box-shadow: var(--glow-pink);
}
.btn-primary:hover { transform: translateY(-2px); color: #2a0a1e; }

.btn-ghost {
  color: var(--ink);
  background: var(--glass-2);
  border-color: var(--line);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

.btn-lg { padding: 16px 30px; font-size: 16.5px; }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }
.btn-block { width: 100%; }

/* ── 通用块 ───────────────────────────────────────── */
section { padding: 84px 0; }
section.tight { padding: 54px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--pink);
  border: 1px solid var(--line);
  background: rgba(248, 187, 218, 0.07);
  padding: 6px 13px;
  border-radius: 999px;
  margin-bottom: 20px;
  font-weight: 700;
}

h1, h2, h3 { line-height: 1.22; margin: 0 0 16px; letter-spacing: -0.4px; }
h1 { font-size: clamp(34px, 5.4vw, 62px); font-weight: 900; }
h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 850; }
h3 { font-size: 19px; font-weight: 800; }
p { margin: 0 0 16px; color: var(--ink-dim); }
.lead { font-size: clamp(16px, 1.5vw, 19px); color: var(--ink-dim); max-width: 640px; }

.grad-text {
  background: linear-gradient(100deg, #fff 0%, var(--pink) 38%, var(--magenta) 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;   /* 「本地 AI 工作台」不许被折行拆开（中文会在任意字间断行） */
}

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.sec-head p { margin-bottom: 0; }

/* ── 玻璃卡 ───────────────────────────────────────── */
.card {
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 26px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.card.hl { border-color: var(--line); background: linear-gradient(180deg, rgba(248, 187, 218, 0.09), rgba(255, 255, 255, 0.03)); }

.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* ── 首屏 ─────────────────────────────────────────── */
.hero { padding: 74px 0 60px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 54px; align-items: center; }
.hero h1 { margin-bottom: 22px; }
.hero-note { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 26px 0 30px; color: var(--ink-faint); font-size: 14px; }
.hero-note i { font-style: normal; color: var(--pink); }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.price-tag { display: flex; align-items: baseline; gap: 7px; margin-left: 6px; }
.price-tag b { font-size: 30px; font-weight: 900; color: var(--pink); }
.price-tag s { color: var(--ink-faint); font-size: 14px; }
.price-tag span { color: var(--ink-faint); font-size: 13px; }

/* 视频框 */
.frame {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: #12001f;
  overflow: hidden;
  box-shadow: 0 40px 100px -40px rgba(232, 121, 249, 0.65);
  position: relative;
}
.frame video { display: block; width: 100%; height: auto; background: #12001f; }
.frame.phone { max-width: 380px; margin: 0 auto; border-radius: 34px; }
.frame-cap {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-size: 12.5px;
  color: var(--ink-dim);
  background: rgba(10, 0, 21, 0.66);
  border: 1px solid var(--line-soft);
  padding: 5px 11px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

/* ── 模块卡 ───────────────────────────────────────── */
.mod { display: flex; flex-direction: column; gap: 8px; padding: 20px; }
.mod .ic { font-size: 22px; line-height: 1; }
.mod b { font-size: 15.5px; }
.mod p { font-size: 13.5px; margin: 0; color: var(--ink-faint); line-height: 1.6; }

/* ── 对比表 ───────────────────────────────────────── */
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tbl th, .tbl td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line-soft); }
.tbl th { color: var(--ink); font-weight: 700; font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase; }
.tbl td { color: var(--ink-dim); }
.tbl tr:last-child td { border-bottom: none; }
.tbl .yes { color: var(--pink); font-weight: 700; }
.tbl .no { color: rgba(247, 238, 251, 0.4); }
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--r-lg); background: var(--glass); backdrop-filter: blur(14px); }

/* ── 步骤 ─────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
.step { position: relative; padding-top: 46px; }
.step::before {
  counter-increment: s;
  content: counter(s, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--bg-0);
  background: linear-gradient(135deg, var(--pink), var(--magenta));
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
}

/* ── 价格 ─────────────────────────────────────────── */
.price-card { text-align: center; padding: 34px 28px; position: relative; }
.price-card .big { font-size: 52px; font-weight: 900; color: var(--pink); line-height: 1; }
.price-card .big small { font-size: 18px; font-weight: 700; color: var(--ink-dim); margin-left: 4px; }
.price-card ul { list-style: none; padding: 0; margin: 22px 0 26px; text-align: left; display: grid; gap: 10px; }
.price-card li { color: var(--ink-dim); font-size: 14.5px; display: flex; gap: 10px; }
.price-card li::before { content: "✓"; color: var(--pink); font-weight: 800; }
.ribbon {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--pink), var(--magenta));
  color: #2a0a1e;
  font-size: 12px;
  font-weight: 800;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.6px;
  white-space: nowrap;
}

/* ── FAQ ──────────────────────────────────────────── */
.faq { border-top: 1px solid var(--line-soft); }
.faq details { border-bottom: 1px solid var(--line-soft); padding: 4px 0; }
.faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 700;
  font-size: 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--pink); font-weight: 800; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 18px; font-size: 14.5px; }

/* ── 提示条 ───────────────────────────────────────── */
.notice {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(248, 187, 218, 0.07);
  font-size: 14px;
  color: var(--ink-dim);
}
.notice b { color: var(--ink); }
.notice.warn { border-color: rgba(255, 196, 120, 0.35); background: rgba(255, 196, 120, 0.08); }
.notice .ni { font-size: 18px; line-height: 1.3; }

/* ── 购买页 ───────────────────────────────────────── */
.pay-tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.pay-tab {
  flex: 1;
  padding: 11px;
  text-align: center;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: var(--glass);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-dim);
}
.pay-tab[aria-selected="true"] { border-color: var(--line); background: rgba(248, 187, 218, 0.12); color: var(--ink); }
.qr-box { background: #fff; border-radius: var(--r-md); padding: 14px; display: grid; place-items: center; min-height: 240px; }
.qr-box img { width: 100%; max-width: 240px; display: block; border-radius: 8px; }
.memo {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--bg-0);
  background: linear-gradient(135deg, var(--pink), var(--magenta));
  padding: 12px 18px;
  border-radius: var(--r-md);
  display: inline-block;
}

label.fl { display: block; font-size: 13px; font-weight: 700; color: var(--ink-dim); margin: 16px 0 7px; }
input.f, select.f, textarea.f {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
  font-size: 15px;
  font-family: inherit;
}
input.f:focus, select.f:focus, textarea.f:focus { outline: none; border-color: var(--pink); background: rgba(255, 255, 255, 0.08); }
input.f::placeholder { color: var(--ink-faint); }

.code-box {
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-all;
  background: rgba(0, 0, 0, 0.35);
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  color: var(--pink);
}

.status-pill { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 700; padding: 5px 12px; border-radius: 999px; }
.status-pill.wait { background: rgba(255, 196, 120, 0.14); color: #ffc478; }
.status-pill.paid { background: rgba(120, 255, 190, 0.14); color: #78ffbe; }
.status-pill.done { background: rgba(248, 187, 218, 0.14); color: var(--pink); }

/* ── 页脚 ─────────────────────────────────────────── */
footer { border-top: 1px solid var(--line-soft); padding: 46px 0 60px; margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
.foot-grid h3 { font-size: 14px; color: var(--ink); margin-bottom: 12px; }
.foot-grid a, .foot-grid p { font-size: 13.5px; color: var(--ink-faint); display: block; margin: 0 0 8px; }
.foot-bottom { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line-soft); font-size: 12.5px; color: var(--ink-faint); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ── 动效 ─────────────────────────────────────────── */
/* 滚动淡入：默认可见；只有 JS 正常运行时才加 .js-rv 开启入场动画
   （早期版本直接给 .rv 设 opacity:0，JS 一挂整页都看不见——这个坑不能再踩） */
.rv { transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js-rv .rv { opacity: 0; transform: translateY(22px); }
.js-rv .rv.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .rv, .js-rv .rv { opacity: 1; transform: none; transition: none; }
  #sky { display: none; }
  html { scroll-behavior: auto; }
}

/* ── 响应式 ───────────────────────────────────────── */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .g4, .g5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links a:not(.btn) { display: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  section { padding: 58px 0; }
  .g2, .g3, .g4, .g5 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .card { padding: 20px; border-radius: var(--r-md); }
  .foot-grid { grid-template-columns: 1fr; }
  .price-card .big { font-size: 44px; }
}