/* Stille 官网共用样式。颜色和 app 一致（ProCam/UI/Theme.swift：ink 0.93/0.92/0.89，accent 0.85/0.15/0.12）。
   版式：单栏，正文最宽 640px；间距只用 8 / 12 / 16 / 24 / 40 / 64 几档。 */

@font-face {
  font-family: "Michroma";
  src: url("Michroma-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #0b0b0a;
  --surface: #141413;
  --ink: #edebe3;
  --dim: #9c988f;
  --line: #2a2926;
  --accent: #d9261f;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mark: "Michroma", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ink); text-decoration-color: var(--dim); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--ink); }
a:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

/* 顶栏 */
.top {
  max-width: 640px; margin: 0 auto; padding: 24px 20px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.mark { display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; }
.mark b { font: 14px/1 var(--mark); letter-spacing: .32em; font-weight: 400; }
.mark span { font-size: 14px; color: var(--dim); letter-spacing: .12em; }
.top nav { display: flex; gap: 16px; font-size: 14px; }
.top nav a { color: var(--dim); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* 正文 */
main { max-width: 640px; margin: 0 auto; padding: 40px 20px 64px; }
.eyebrow { font: 11px/1 var(--mark); letter-spacing: .28em; color: var(--dim); margin: 0 0 12px; }
h1 { font-size: 28px; line-height: 1.3; font-weight: 600; margin: 0 0 8px; letter-spacing: .02em; }
.meta { color: var(--dim); font-size: 14px; margin: 0; }
.lead { font-size: 17px; margin: 24px 0 0; }
h2 {
  font-size: 13px; font-weight: 500; color: var(--dim); letter-spacing: .12em;
  margin: 40px 0 12px; padding-top: 24px; border-top: 1px solid var(--line);
}
h2::before { content: ""; display: inline-block; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; margin-right: 10px; vertical-align: 2px; }
p { margin: 12px 0 0; }
strong { font-weight: 600; }

ul { margin: 12px 0 0; padding: 0; list-style: none; }
li { position: relative; padding-left: 18px; margin: 8px 0 0; }
li::before { content: ""; position: absolute; left: 0; top: .78em; width: 8px; height: 1px; background: var(--dim); }

/* 常见问题：一问一答 */
.qa { margin-top: 24px; }
.qa h3 { font-size: 16px; font-weight: 600; margin: 0; line-height: 1.6; }
.qa p { margin-top: 8px; color: #d9d6ce; }

/* 联系方式 */
.contact { background: var(--surface); border-radius: 8px; padding: 16px 20px; margin-top: 16px; }
.contact p { margin: 0; }
.contact p + p { margin-top: 8px; }
.contact .k { color: var(--dim); font-size: 14px; margin-right: 12px; }

/* 英文部分 */
.lang-split { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--line); }

/* 页脚 */
footer {
  max-width: 640px; margin: 0 auto; padding: 24px 20px 48px;
  border-top: 1px solid var(--line); color: var(--dim); font-size: 13px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
footer a { color: var(--dim); }

/* 首页 */
.home { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; }
.home img { width: 88px; height: 88px; border-radius: 20px; display: block; }
.home .wordmark { font: 26px/1.2 var(--mark); letter-spacing: .3em; margin: 32px 0 0; font-weight: 400; }
.home .cn { font-size: 18px; letter-spacing: .3em; color: var(--dim); margin: 12px 0 0; }
.home .tag { margin: 24px 0 0; font-size: 17px; }
.home .tag span { display: block; color: var(--dim); font-size: 15px; margin-top: 4px; }
.home .links { display: flex; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.home .links a {
  text-decoration: none; font-size: 14px; padding: 8px 16px;
  border: 1px solid var(--line); border-radius: 999px;
}
.home .links a:hover { border-color: var(--dim); }

@media (max-width: 480px) {
  h1 { font-size: 24px; }
  .home .wordmark { font-size: 22px; }
}