/* max1874.com 全站唯一的样式表。所有 App 页、隐私页共用，不按 App 换色。 */

:root {
  color-scheme: light dark;
  --paper: #f5f7f9;
  --panel: #ffffff;
  --ink: #16202a;
  --ink-2: #4b5764;
  --ink-3: #7a8692;
  --rule: #dbe0e5;
  --accent: #1f4fd1;
  --accent-ink: #ffffff;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e1318;
    --panel: #151c23;
    --ink: #e6ebf0;
    --ink-2: #aab5c0;
    --ink-3: #7b8894;
    --rule: #25303a;
    --accent: #86a8ff;
    --accent-ink: #0e1318;
  }
}

html[data-lang="zh"] .l-en, html[data-lang="en"] .l-zh { display: none; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 var(--sans);
  font-feature-settings: "kern";
}
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
img { display: block; }

.bar, main, .foot { max-width: 760px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }

/* 顶栏 */
.bar { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; padding-bottom: 20px; }
.mark { font-weight: 800; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; }
.langs { display: flex; gap: 2px; }
.langs button {
  font: inherit; font-size: 14px; color: var(--ink-3); background: none; cursor: pointer;
  border: 1px solid transparent; border-radius: 999px; padding: 2px 12px;
}
.langs button[aria-pressed="true"] { color: var(--ink); border-color: var(--rule); background: var(--panel); }

/* 首页 */
.intro { padding: 40px 0 8px; }
.big {
  font-size: clamp(64px, 17vw, 128px); line-height: .9; font-weight: 800; letter-spacing: -0.055em;
  margin: 0 0 20px; margin-left: -0.04em;
}
.intro p { font-size: 20px; line-height: 1.5; color: var(--ink-2); margin: 0; max-width: 28em; }
.intro h1:not(.big) { font-size: 32px; letter-spacing: -0.02em; margin: 0 0 12px; }

.group h2 { font-size: 15px; font-weight: 600; color: var(--ink-3); margin: 56px 0 8px; }
.index { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.index li { border-bottom: 1px solid var(--rule); }
.index a {
  display: grid; grid-template-columns: 64px 1fr auto; gap: 16px; align-items: center;
  padding: 16px 0; color: inherit; text-decoration: none;
}
.index img, .index .noicon { width: 64px; height: 64px; border-radius: 22.5%; }
.index .what { display: grid; min-width: 0; }
.index strong { font-size: 19px; line-height: 1.3; }
.index .what > span { color: var(--ink-2); font-size: 15px; line-height: 1.45; }
.index a:hover strong { color: var(--accent); }

.noicon {
  display: grid; place-items: center; background: var(--rule); color: var(--ink-3);
  font-weight: 800; font-size: 28px;
}

/* macOS 图标自带外形和留白，不再裁圆角、不加阴影 */
.index img.mac, .hero .icon.mac { border-radius: 0; box-shadow: none; }

/* 状态：只有「能下载」用强调色，其余是灰的 */
.status { font-size: 13px; line-height: 1; white-space: nowrap; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--rule); color: var(--ink-3); margin: 0; }
.s-app-store, .s-download { border-color: transparent; background: var(--accent); color: var(--accent-ink); }

/* App 页 */
.app, .policy { padding-top: 24px; }
.hero { display: grid; grid-template-columns: 112px 1fr; gap: 24px; align-items: center; }
.hero .icon { width: 112px; height: 112px; border-radius: 22.5%; box-shadow: 0 1px 2px rgba(22, 32, 42, .08), 0 8px 24px rgba(22, 32, 42, .12); }
.hero .noicon { font-size: 44px; box-shadow: none; }
.hero .status { display: inline-block; margin-bottom: 10px; }
h1 { font-size: 44px; line-height: 1.08; font-weight: 800; letter-spacing: -0.03em; margin: 0; }
.tagline { font-size: 20px; line-height: 1.4; color: var(--ink-2); margin: 8px 0 0; }
.summary { font-size: 20px; line-height: 1.55; margin: 36px 0 24px; max-width: 32em; }

.get {
  display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 600;
  text-decoration: none; padding: 12px 22px; border-radius: 12px;
}
.get:hover { filter: brightness(1.08); }
.note { color: var(--ink-2); background: var(--panel); border: 1px solid var(--rule); border-radius: 12px; padding: 12px 16px; margin: 0; }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px 24px; margin: 32px 0 0; }
.facts dt { font-size: 13px; color: var(--ink-3); }
.facts dd { margin: 2px 0 0; font-size: 15px; line-height: 1.5; }

.app h2 { font-size: 24px; letter-spacing: -0.015em; line-height: 1.25; margin: 64px 0 20px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px 32px; margin: 0; }
.features dt { font-weight: 700; font-size: 17px; }
.features dd { margin: 6px 0 0; color: var(--ink-2); font-size: 16px; line-height: 1.6; }

.faq { border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 32px 14px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: var(--ink-3); font-weight: 400; font-size: 20px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; color: var(--ink-2); font-size: 16px; }
.help { margin: 0; }

.links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--rule); font-size: 15px; }
.icp { font-size: 13px; margin: 12px 0 0; }
.icp a { color: var(--ink-3); }

/* 隐私页 */
.crumb { margin: 0 0 8px; font-size: 15px; }
.crumb a { color: var(--ink-3); text-decoration: none; }
.crumb a:hover { color: var(--accent); }
.policy > h1 { margin-bottom: 24px; }
.prose { max-width: 42em; }
.prose h1 { font-size: 28px; margin: 48px 0 12px; }
.prose h2 { font-size: 22px; letter-spacing: -0.01em; line-height: 1.3; margin: 44px 0 12px; }
.prose h3 { font-size: 18px; margin: 28px 0 8px; }
.prose p, .prose li { color: var(--ink); }
.prose .date, .prose .meta { color: var(--ink-3); font-size: 15px; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: 4px 0; }
.prose blockquote { margin: 16px 0; padding: 4px 16px; border-left: 3px solid var(--rule); color: var(--ink-2); }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }
.prose code { font-size: .9em; background: var(--panel); border: 1px solid var(--rule); border-radius: 4px; padding: 0 4px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; }
.prose .table-wrap, .prose .markdown-table-wrapper { overflow-x: auto; margin: 16px 0; }
.prose table:not(.table-wrap table) { display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--rule); }
.prose th { color: var(--ink-3); font-weight: 600; font-size: 13px; }
.prose a { word-break: break-word; }

/* 页脚 */
.foot { margin-top: 80px; padding-top: 24px; padding-bottom: 40px; border-top: 1px solid var(--rule); color: var(--ink-3); font-size: 14px; }
.foot p { margin: 4px 0; display: flex; flex-wrap: wrap; gap: 4px 20px; }
.foot a { color: var(--ink-3); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 34px; }
  .hero { grid-template-columns: 80px 1fr; gap: 16px; }
  .hero .icon { width: 80px; height: 80px; }
  .summary, .tagline { font-size: 18px; }
  .index a { grid-template-columns: 52px 1fr; }
  .index img, .index .noicon { width: 52px; height: 52px; }
  .index .status { grid-column: 2; justify-self: start; }
}