/* 小日历介绍网站。颜色取自 App 的 Theme.swift（浅色）：底色 canvas、卡片 card、主色 accent。只做浅色。 */
:root {
  color-scheme: light;
  --canvas: #F7F2EB;
  --card: #FFFCF7;
  --accent: #1F8757;
  --accent-dark: #17694A;
  --accent-soft: rgba(31, 135, 87, 0.09);
  --red: #C94521;
  --ink: #1F1E1C;
  --ink-2: #55524C;
  --ink-3: #8A857C;
  --line: #E8E1D6;
  --radius: 22px;
  --shot-w: min(64vw, 270px);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.7 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; margin: 0; letter-spacing: 0.01em; }
p { margin: 0; }
:focus-visible { outline: 3px solid rgba(31, 135, 87, 0.45); outline-offset: 3px; border-radius: 8px; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
.topbar { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 6px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 22.5%; }
.lang { font-size: 14px; color: var(--ink-2); padding: 6px 14px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); }
.lang:hover { text-decoration: none; color: var(--accent); }

/* 首屏 */
.hero { display: grid; gap: 28px; padding: 36px 0 12px; text-align: center; }
.hero-icon { width: 96px; height: 96px; border-radius: 22.5%; margin: 0 auto 18px; box-shadow: 0 8px 24px rgba(31, 90, 60, 0.18); }
.hero h1 { font-size: 40px; font-weight: 700; color: var(--accent); }
.hero h1 small { display: block; font-size: 20px; font-weight: 500; color: var(--ink); margin-top: 4px; letter-spacing: 0.04em; }
.hero .lead { font-size: 17px; color: var(--ink-2); margin: 16px auto 0; max-width: 30em; }
.hero .note { font-size: 14px; color: var(--ink-3); margin-top: 10px; }
.hero .ui-lang { display: inline-block; font-size: 14px; color: var(--accent-dark); background: var(--accent-soft); padding: 4px 12px; border-radius: 999px; margin-top: 12px; }

.get { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; margin-top: 24px; }
.badge-link { display: inline-block; line-height: 0; border-radius: 10px; }
.badge-link img { height: 52px; width: auto; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; padding: 0 22px; border-radius: 12px;
  font-size: 16px; font-weight: 600; white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-android { background: var(--accent); color: #fff; }
.btn-android:hover { background: var(--accent-dark); }
.btn-soon { background: var(--card); color: var(--ink-3); border: 1px dashed #CFC6B8; cursor: default; }
.btn svg { width: 20px; height: 20px; flex: none; }

/* 手机上首屏只放图标、文字和下载按钮（月历截图紧接着在下面的「月历」一段），宽屏才放两张截图 */
.hero-shots { display: none; position: relative; justify-content: center; padding: 8px 0 12px; }
.hero-shots .shot { width: var(--shot-w); }
.hero-shots .shot.back { position: absolute; width: calc(var(--shot-w) * 0.86); transform: translateX(-46%) translateY(28px); opacity: 0.98; }
.hero-shots .shot.front { transform: translateX(14%); }

/* 截图：真实截图，只加圆角和阴影 */
.shot { margin: 0; container-type: inline-size; flex: 0 0 var(--shot-w); scroll-snap-align: center; }
.shot img {
  width: 100%;
  border-radius: 24px;
  border-radius: 13cqw;
  background: #EEE8DF;
  box-shadow: 0 0 0 1px rgba(40, 30, 10, 0.06), 0 14px 34px rgba(70, 55, 30, 0.14);
}
.shot figcaption { font-size: 13px; color: var(--ink-3); text-align: center; margin-top: 10px; }

/* 几个要点，等宽等高 */
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.fact { background: var(--card); border-radius: 18px; padding: 16px; display: flex; flex-direction: column; gap: 4px; }
.fact b { font-size: 16px; color: var(--accent-dark); }
.fact span { font-size: 14px; color: var(--ink-2); line-height: 1.55; }

/* 功能卡片 */
.features { display: grid; gap: 16px; margin-top: 16px; }
.feature { background: var(--card); border-radius: var(--radius); padding: 26px 20px 22px; overflow: hidden; }
.feature h2 { font-size: 23px; font-weight: 700; }
.feature .kicker { display: inline-block; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; }
.feature .kicker.soon { color: #9A6512; background: rgba(217, 148, 38, 0.13); }
.feature p { color: var(--ink-2); margin-top: 10px; }
.feature ul { margin: 12px 0 0; padding: 0; list-style: none; color: var(--ink-2); }
.feature li { position: relative; padding-left: 18px; margin-top: 6px; }
.feature li::before { content: ""; position: absolute; left: 2px; top: 0.72em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.feature .fine { font-size: 13px; color: var(--ink-3); margin-top: 12px; }

.shots {
  display: flex; gap: 16px;
  margin: 22px -20px 0; padding: 4px 20px 26px;
  overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
}
.shots::-webkit-scrollbar { display: none; }
.shots .shot:first-child { margin-left: auto; }
.shots .shot:last-child { margin-right: auto; }

.shot-wide { margin: 22px 0 4px; }
.shot-wide img { border-radius: 18px; box-shadow: 0 0 0 1px rgba(40, 30, 10, 0.06), 0 14px 34px rgba(70, 55, 30, 0.14); }

/* 下载 */
.download { margin-top: 16px; background: var(--card); border-radius: var(--radius); padding: 28px 20px; text-align: center; }
.download h2 { font-size: 26px; }
.download > p { color: var(--ink-2); margin-top: 8px; }
.dl-grid { display: grid; gap: 12px; margin-top: 22px; }
.dl-card { background: var(--canvas); border-radius: 18px; padding: 22px 18px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.dl-card h3 { font-size: 17px; }
.dl-card p { font-size: 14px; color: var(--ink-2); }
.dl-meta { font-size: 13px !important; color: var(--ink-3) !important; }
.dl-card details { width: 100%; text-align: left; font-size: 14px; color: var(--ink-2); background: var(--card); border-radius: 12px; padding: 10px 14px; }
.dl-card summary { cursor: pointer; color: var(--ink); font-weight: 500; }
.dl-card details ol { margin: 8px 0 0; padding-left: 20px; }
.dl-card details li { margin-top: 4px; }
.dl-card details p { margin-top: 8px; }
.dl-card code { display: block; margin-top: 8px; font-size: 12px; word-break: break-all; color: var(--ink-2); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.qr-card { display: none; }
.qr-card img { width: 148px; height: 148px; padding: 12px; background: #fff; border-radius: 14px; }
.wechat-tip { display: none; width: 100%; font-size: 14px; color: #8A4B00; background: #FFF3D6; border-radius: 12px; padding: 10px 14px; text-align: left; }
.is-wechat.is-android .wechat-tip { display: block; }

/* 页脚 */
.footer { padding-top: 32px; padding-bottom: 40px; font-size: 13px; color: var(--ink-3); text-align: center; }
.footer nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; font-size: 14px; }
.footer p { margin-top: 12px; max-width: 46em; margin-left: auto; margin-right: auto; line-height: 1.6; }
.footer .disclaimer { color: var(--ink-2); }

/* 平板和电脑 */
@media (min-width: 720px) {
  :root { --shot-w: 250px; }
  .wrap { padding: 0 28px; }
  .facts { grid-template-columns: repeat(4, 1fr); }
  .feature { padding: 36px 36px 30px; }
  .shots { margin: 26px -36px 0; padding: 4px 36px 26px; justify-content: center; }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  :root { --shot-w: 260px; }
  .hero { grid-template-columns: 1.05fr 1fr; align-items: center; text-align: left; padding: 48px 0 16px; gap: 40px; }
  .hero-icon { margin: 0 0 22px; width: 104px; height: 104px; }
  .hero h1 { font-size: 52px; }
  .hero h1 small { font-size: 24px; }
  .hero .lead { margin-left: 0; font-size: 18px; }
  .get { justify-content: flex-start; }
  .hero-shots { display: flex; padding: 0 0 40px; }

  .hero-qr { align-items: center; gap: 16px; margin-top: 26px; padding: 14px 18px 14px 14px; background: var(--card); border-radius: 18px; width: fit-content; }
  .hero-qr img { width: 92px; height: 92px; background: #fff; padding: 8px; border-radius: 10px; }
  .hero-qr p { font-size: 14px; color: var(--ink-2); line-height: 1.6; }
  .hero-qr b { color: var(--ink); font-size: 15px; }

  .feature { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 48px; padding: 44px 52px; }
  .feature .text { max-width: 30em; }
  .feature h2 { font-size: 28px; }
  .feature.flip { grid-template-columns: auto minmax(0, 1fr); }
  .feature.flip .shots { order: -1; }
  .shots { margin: 0; padding: 4px 0 20px; overflow: visible; }
  .feature-wide { display: block; }
  .feature-wide .text { max-width: 40em; }
  .shot-wide { margin: 28px auto 4px; max-width: 880px; }

  .download { padding: 44px 40px; }
  .dl-grid { grid-template-columns: repeat(3, 1fr); }
  .qr-card { display: flex; }
}

/* 二维码只在电脑上显示（宽屏且有鼠标）；平板宽屏时下载区只排两张卡片 */
.hero-qr { display: none; }
@media (min-width: 960px) and (hover: hover) and (pointer: fine) { .hero-qr { display: flex; } }
@media (min-width: 960px) and (hover: none) {
  .qr-card { display: none; }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }