/* 赤隼 RedFalcon 官网样式 */
:root {
  --primary: #B22222;        /* 赤隼红 */
  --primary-dark: #8B1A1A;
  --primary-light: #E34234;
  --ink: #1A1A2E;
  --ink-2: #33334A;
  --bg: #F7F7FB;
  --card: #FFFFFF;
  --line: #E4E4EF;
  --ok: #1E7B4F;
  --warn: #B8860B;
  --code-bg: #10131F;
  --code-fg: #E6E6F0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 顶栏 */
header {
  background: linear-gradient(120deg, #16122A 0%, #2A1630 55%, #3A1220 100%);
  color: #fff;
  border-bottom: 3px solid var(--primary);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; letter-spacing: 1px; }
.brand .logo {
  width: 40px; height: 40px; border-radius: 10px;
  background: radial-gradient(circle at 30% 30%, var(--primary-light), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; font-weight: 800;
}
.brand .j { font-size: 12px; font-weight: 400; color: #C9C9E0; letter-spacing: 2px; }
.nav ul { display: flex; gap: 26px; list-style: none; }
.nav ul li a { color: #E8E8F5; font-size: 15px; }
.nav ul li a:hover, .nav ul li a.active { color: #FF8A5C; text-decoration: none; }

/* 主横幅 */
.hero {
  background: linear-gradient(160deg, #16122A 0%, #24122E 60%, #3A1220 100%);
  color: #fff; padding: 72px 0 64px;
}
.hero h1 { font-size: 40px; margin-bottom: 16px; }
.hero h1 span { color: #FF8A5C; }
.hero p { font-size: 17px; color: #D9D9EC; max-width: 760px; }
.hero .badges { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero .badge {
  border: 1px solid rgba(255,255,255,.35); border-radius: 999px;
  padding: 6px 16px; font-size: 13px; color: #F2F2FB; background: rgba(255,255,255,.06);
}
.hero .actions { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 8px;
  font-size: 15px; font-weight: 600; transition: .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); text-decoration: none; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); text-decoration: none; }

/* 区块 */
section { padding: 56px 0; }
.section-title { font-size: 26px; color: var(--ink); margin-bottom: 8px; }
.section-sub { color: var(--ink-2); margin-bottom: 30px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--primary-dark); }
.card p { font-size: 14px; color: var(--ink-2); }
.card .icon { font-size: 26px; margin-bottom: 10px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } .nav { flex-wrap: wrap; height: auto; padding: 12px 0; } }

/* 表格 */
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
th { background: #16122A; color: #fff; font-weight: 600; }
tr:last-child td { border-bottom: none; }

/* 代码 */
.code {
  background: var(--code-bg); color: var(--code-fg); border-radius: 10px;
  padding: 18px 22px; font-family: "Cascadia Code", Consolas, monospace;
  font-size: 13px; overflow-x: auto; margin: 14px 0; line-height: 1.8;
}

/* 步骤列表 */
ol.steps { counter-reset: step; list-style: none; }
ol.steps li { counter-increment: step; position: relative; padding: 0 0 18px 46px; font-size: 15px; }
ol.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 2px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary); color: #fff; text-align: center; line-height: 30px; font-weight: 700; font-size: 14px;
}

/* 提示框 */
.note { border-left: 4px solid var(--primary); background: #FDEEEE; padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 16px 0; font-size: 14px; }
.note.ok { border-left-color: var(--ok); background: #EAF6EF; }
.note.warn { border-left-color: var(--warn); background: #FBF4E4; }
.note.legal { border-left-color: #5B2D86; background: #F1EAF9; }

/* 下载卡片 */
.dl-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 28px; margin-bottom: 26px; }
.dl-card h3 { font-size: 20px; margin-bottom: 4px; }
.dl-card .ver { color: var(--primary); font-weight: 700; }
.dl-card .meta { color: #888; font-size: 13px; margin-bottom: 12px; }
.dl-card .hash { font-family: Consolas, monospace; font-size: 12.5px; background: #F1F1F8; padding: 6px 10px; border-radius: 6px; word-break: break-all; }

/* 检查清单 */
.checks { list-style: none; }
.checks li { padding: 7px 0 7px 30px; position: relative; font-size: 14.5px; }
.checks li::before { content: "✔"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }

/* 页脚 */
footer { background: #16122A; color: #A9A9C8; padding: 40px 0 24px; font-size: 13px; }
footer .cols { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; margin-bottom: 24px; }
footer h4 { color: #fff; margin-bottom: 10px; }
footer ul { list-style: none; }
footer ul li { padding: 3px 0; }
footer .legal-note { border-top: 1px solid rgba(255,255,255,.12); padding-top: 16px; text-align: center; color: #7A7A9C; font-size: 12px; line-height: 1.9; }

/* 下载同意框 */
.agree {
  background: #F1EAF9; border: 1px solid #D8C8EE; border-radius: 10px;
  padding: 16px 20px; margin: 16px 0; font-size: 14px;
}
.agree label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.agree input { margin-top: 4px; transform: scale(1.25); accent-color: #5B2D86; }