/* 哈哈猪官网 — 视觉克制:一个主色 + 中性灰,不用任何 CDN 资源(国内加载不稳) */
:root {
  --green: #1f7a4d;
  --green-dark: #14532d;
  --green-soft: #eef7f1;
  --ink: #1c2b22;
  --gray: #5b6b62;
  --line: #e3eae5;
  --bg: #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* ── 顶栏 ── */
.nav {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(8px);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 17px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .dot {
  width: 26px; height: 26px; border-radius: 8px; background: var(--green);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px;
}
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--gray); }
.nav-links a.on { color: var(--green); font-weight: 600; }

/* ── 首屏 ── */
.hero { background: var(--green-soft); padding: 64px 0 56px; text-align: center; }
.hero h1 { font-size: 34px; line-height: 1.35; margin: 0 0 14px; letter-spacing: -0.3px; }
.hero p { font-size: 17px; color: var(--gray); margin: 0 auto 28px; max-width: 620px; }

.btn {
  display: inline-block; padding: 11px 26px; border-radius: 999px;
  background: var(--green); color: #fff; font-size: 15px; font-weight: 600;
  border: 1px solid var(--green);
}
.btn:hover { background: var(--green-dark); border-color: var(--green-dark); text-decoration: none; }
.btn.ghost { background: #fff; color: var(--green); }
.btn.ghost:hover { background: #fff; color: var(--green-dark); }
.btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── 分区 ── */
section { padding: 52px 0; }
section h2 { font-size: 24px; margin: 0 0 8px; }
section .sub { color: var(--gray); margin: 0 0 30px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card {
  border: 1px solid var(--line); border-radius: 14px; padding: 22px;
  background: #fff;
}
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--gray); font-size: 15px; }
.card .tag {
  display: inline-block; font-size: 12px; color: var(--green);
  background: var(--green-soft); border-radius: 6px; padding: 2px 9px; margin-bottom: 10px;
}

.steps { counter-reset: s; display: grid; gap: 14px; }
.step { display: flex; gap: 14px; align-items: flex-start; }
.step .n {
  flex: 0 0 28px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--green); color: #fff; font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 3px;
}
.step div strong { display: block; }
.step div span { color: var(--gray); font-size: 15px; }

/* ── 下载卡 ── */
.dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.dl .card { display: flex; flex-direction: column; }
.dl .card .actions { margin-top: auto; padding-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.dl .card .actions .btn { padding: 8px 18px; font-size: 14px; }
.muted { color: var(--gray); font-size: 14px; }

/* ── 正文(协议页) ── */
.doc { padding: 40px 0 60px; }
.doc h1 { font-size: 27px; margin: 0 0 6px; }
.doc .meta { color: var(--gray); font-size: 14px; margin-bottom: 28px; }
.doc h2 { font-size: 19px; margin: 34px 0 10px; padding-top: 6px; }
.doc h3 { font-size: 16px; margin: 22px 0 8px; }
.doc p, .doc li { color: #33443b; }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin-bottom: 6px; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 9px 11px; text-align: left; vertical-align: top; }
.doc th { background: var(--green-soft); font-weight: 600; }
.doc .callout {
  background: var(--green-soft); border-left: 3px solid var(--green);
  padding: 14px 16px; border-radius: 0 10px 10px 0; margin: 18px 0;
}
.table-scroll { overflow-x: auto; }

/* ── 页脚 ── */
footer { border-top: 1px solid var(--line); padding: 30px 0 40px; color: var(--gray); font-size: 14px; }
footer .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer a { color: var(--gray); }
footer .copy { margin-top: 20px; font-size: 13px; }

@media (max-width: 640px) {
  .hero { padding: 44px 0 40px; }
  .hero h1 { font-size: 26px; }
  .nav-links { gap: 14px; font-size: 14px; }
  .brand span.name { display: none; }
  section { padding: 40px 0; }
}