/* 参照 TapeOut 官网的朴素风格：暖白底、白色卡片、细边框、深色字；主按钮用深色底，不用渐变和阴影 */
:root {
  --bg: #faf9f7; --fg: #1c1b19; --muted: #77746d; --line: #e8e6e1; --line-strong: #d9d6cf; --card: #ffffff;
  --accent: #1c1b19; --link: #2f5bd3; --ok: #1a7f37; --bad: #c62828; --on-accent: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1a1918; --fg: #ecebe8; --muted: #9a968e; --line: #33312e; --line-strong: #44413c; --card: #232220; --accent: #ecebe8; --link: #8fb0ff; --ok: #3fb950; --bad: #f85149; --on-accent: #1a1918; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--link); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.9em; background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 0 4px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--bg); padding: 8px 12px; z-index: 10; }

header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--fg); text-decoration: none; }
.brand img { width: 28px; height: 28px; }
nav ul { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }

.hero { padding: 72px 0 48px; text-align: center; }
.hero img { width: 96px; height: 96px; }
.hero h1 { font-size: 36px; line-height: 1.2; font-weight: 600; letter-spacing: -.01em; margin: 16px 0 12px; }
.hero p { color: var(--muted); font-size: 18px; max-width: 640px; margin: 0 auto 28px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 9px 18px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--card); color: var(--fg); text-decoration: none; font-weight: 500; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { opacity: .88; }
.hero .version { color: var(--muted); font-size: 14px; margin: 24px auto 0; }

section { padding: 48px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 24px; font-weight: 600; margin: 0 0 8px; }
section > .wrap > p.lead { color: var(--muted); margin: 0 0 28px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; }
.card h3 { font-size: 17px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.note { margin-top: 20px; padding: 14px 18px; border: 1px solid var(--line); background: var(--card); border-radius: 10px; color: var(--muted); font-size: 15px; }

table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; }
.downloads td:last-child { white-space: nowrap; }
.hint { color: var(--muted); font-size: 14px; }
.hint ul { margin: 8px 0 0; padding-left: 20px; }

.steps { margin: 0; padding-left: 22px; }
.steps li { margin: 0 0 24px; }
.steps p { margin: 0 0 10px; }
.steps img { display: block; max-width: 520px; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; }

.log h3 { font-size: 18px; margin: 28px 0 4px; }
.log h3 .date { color: var(--muted); font-weight: 400; font-size: 14px; margin-left: 8px; }
.log ul { margin: 6px 0 0; padding-left: 20px; }
.log li { margin: 3px 0; }
.log details { margin-top: 16px; }
.log summary { cursor: pointer; color: var(--link); font-size: 15px; }
.log details[open] > summary { margin-bottom: 8px; }
.log .steps { margin-top: 12px; }
.log .steps li { margin: 0 0 24px; }

/* 分享链接落地页 open/ */
.open-page { padding: 72px 0 80px; }
.open-page h1 { font-size: 36px; line-height: 1.2; margin: 4px 0 10px; font-family: ui-monospace, Menlo, Consolas, monospace; word-break: break-all; }
.open-page { padding: 56px 0 72px; }
.open-page .wrap > div { max-width: 600px; margin: 0 auto; padding: 32px 36px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.open-page h1 { font-size: 28px; font-weight: 600; margin: 4px 0 8px; font-family: ui-monospace, Menlo, Consolas, monospace; letter-spacing: -.01em; word-break: break-all; }
.open-page .eyebrow { color: var(--muted); font-size: 14px; margin: 0; }
.open-page .chain { margin: 0; }
.open-page .status { font-size: 16px; margin: 20px 0; }
.open-page .addr { margin: 24px 0 0; padding-top: 16px; border-top: 1px solid var(--line); word-break: break-all; }
.cta.left { justify-content: flex-start; }
.chain-pill { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; padding: 2px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--fg); }
.chain-pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.chain-pill.bnb::before { background: #f0b90b; }
.chain-pill.xlayer::before { background: #1c1b19; }
.chain-pill.base::before { background: #0052ff; }
@media (prefers-color-scheme: dark) { .chain-pill.xlayer::before { background: #ecebe8; } }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 640px) {
  nav { display: none; }
  .hero h1 { font-size: 30px; }
  .downloads td:last-child { white-space: normal; }
}