/* 航海的猫 · 支持 / 隐私 / 特别活动

   三个页面共用这一份样式。页面本身按语言分开（/support 与 /support/en），
   右上角的语言按钮直接跳到另一份，不再把两种语言堆在同一页上下翻。
   只用同源资源，不请求任何第三方。 */

:root {
  color-scheme: light;
  --ink: #5C4433;
  --muted: #8C7A6B;
  --paper: #FFF8EE;
  --card: #FFFDF8;
  --line: #E6D8C4;
  --accent: #B9733B;
  --sage: #A9C4A2;
  --sand: #F3E4D0;
  --honey: #F6D98D;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 56px;
  color: var(--ink);
  line-height: 1.75;
  background: var(--paper);
  background-image: radial-gradient(rgba(92, 68, 51, 0.035) 1px, transparent 1px);
  background-size: 18px 18px;
}

header {
  position: relative;
  padding-bottom: 20px;
  padding-right: 96px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  font-size: 30px;
  line-height: 1.25;
  margin: 0 0 8px;
}

.lead { font-size: 17px; margin: 0 0 6px; }

.meta, .note { color: var(--muted); font-size: 14px; }
.meta { margin: 2px 0; }

.lang-switch {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  min-height: 38px;
  padding: 6px 16px;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-decoration: none;
}

.lang-switch:hover { border-color: var(--accent); color: var(--accent); }

/* 语言菜单：右上角一个小胶囊，点开列出网站支持的全部语言。
   用 <details>，不需要 JS，键盘和读屏也能用。 */
.lang-menu { position: absolute; top: 0; right: 0; }

.lang-menu > summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 56px;
  min-height: 38px;
  padding: 6px 14px;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  cursor: pointer;
  list-style: none;
}

.lang-menu > summary::-webkit-details-marker { display: none; }
.lang-menu > summary::after { content: "▾"; font-size: 10px; color: var(--muted); }
.lang-menu[open] > summary { border-color: var(--accent); color: var(--accent); }

.lang-menu ul {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 20;
  margin: 0;
  padding: 6px;
  list-style: none;
  min-width: 184px;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(92, 68, 51, .16);
}

.lang-menu li { margin: 0; }

.lang-menu li a {
  display: block;
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.3;
  text-decoration: none;
}

.lang-menu li a:hover { background: var(--sand); }
.lang-menu li a[aria-current="page"] { color: var(--accent); font-weight: 600; background: var(--sand); }

nav { margin-top: 14px; font-size: 14px; line-height: 1.9; }

a { color: var(--accent); text-underline-offset: 2px; }

main { padding-top: 8px; }

h2 {
  font-size: 20px;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

h3 { font-size: 16px; margin: 22px 0 6px; }

p, li { font-size: 15px; }
ol, ul { padding-left: 22px; }
li { margin: 4px 0; }

.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}
.button:hover { filter: brightness(.95); }

.summary {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.summary p { margin: 0; }

.event-card {
  margin: 16px 0 4px;
  padding: 18px 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(92, 68, 51, .07);
}
.event-card p { margin: 10px 0 0; }
.event-state {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
}

footer {
  margin-top: 44px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
footer p { font-size: 13px; margin: 4px 0; }
footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 8px 0; }
footer a { color: var(--accent); text-decoration: none; border-bottom: 1px solid currentColor; }

@media (max-width: 480px) {
  body { padding: 24px 16px 40px; }
  header { padding-right: 82px; }
  h1 { font-size: 25px; }
  .lang-switch,
  .lang-menu > summary { min-width: 50px; min-height: 34px; padding: 4px 12px; }
  h2 { font-size: 19px; }
}

/* ---------- 邀请落地页 ---------- */

.invite-card {
  margin: 24px 0 30px;
  padding: 24px 20px;
  text-align: center;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(92, 68, 51, 0.08);
}

.invite-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.invite-code {
  margin: 0 0 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(34px, 10vw, 48px);
  font-weight: 700;
  letter-spacing: .18em;
  /* 字距让最后一个字母也偏右，补回来才真正居中 */
  text-indent: .18em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.invite-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 28px;
  border-radius: 999px;
  background: var(--accent);
  color: #FFF8EE;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 3px 0 #8F5528;
}

.invite-open:active { transform: translateY(2px); box-shadow: 0 1px 0 #8F5528; }

.invite-card .note { margin: 16px 0 0; }

main ol { padding-left: 1.3em; }
main li { margin: 4px 0; }

@media (max-width: 420px) {
  .invite-code { font-size: 32px; letter-spacing: .12em; }
}

/* ---------- 支持中心 · 小猫的航海手册 ---------- */

.cat-hero {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 24px 0 8px;
  padding: 22px 20px;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 12px 30px rgba(92, 68, 51, .08);
}

.cat-hero img.cat {
  width: 108px;
  height: 108px;
  object-fit: contain;
  flex: 0 0 auto;
  filter: drop-shadow(0 6px 10px rgba(92, 68, 51, .12));
}

.cat-hero .say { flex: 1 1 auto; min-width: 0; }
.cat-hero .say p { margin: 0 0 6px; font-size: 15px; }
.cat-hero .say p:last-child { margin-bottom: 0; }
.cat-hero .hello {
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
}

.cat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 4px;
}
.cat-chips span {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--sand);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.shots {
  display: flex;
  gap: 16px;
  margin: 18px -20px 6px;
  padding: 6px 20px 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.shots::-webkit-scrollbar { height: 6px; }
.shots::-webkit-scrollbar-thumb { background: var(--line); border-radius: 99px; }

.shot {
  flex: 0 0 200px;
  scroll-snap-align: start;
}
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 22px;
  border: 4px solid var(--card);
  background: var(--card);
  box-shadow: 0 12px 26px rgba(92, 68, 51, .16);
}
.shot figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  text-align: center;
}
.shot figcaption strong { color: var(--ink); }

.letter {
  margin: 18px 0;
  padding: 22px 22px 18px;
  background:
    linear-gradient(180deg, rgba(255, 253, 248, .96), rgba(255, 250, 240, .96));
  border: 1.5px dashed var(--line);
  border-radius: 18px;
  position: relative;
}
.letter::before {
  content: "🐾";
  position: absolute;
  top: -13px;
  left: 20px;
  padding: 0 8px;
  background: var(--paper);
  font-size: 16px;
}
.letter p { margin: 0 0 12px; }
.letter p:last-child { margin-bottom: 0; }
.letter .sign {
  margin-top: 14px;
  font-weight: 700;
  color: var(--accent);
  text-align: right;
}
.studio-more {
  margin: 16px 0 28px;
  font-size: 14px;
  color: var(--muted);
}
.studio-more a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 4px;
}
.feature {
  padding: 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.feature .emoji { font-size: 22px; line-height: 1; }
.feature h3 { margin: 8px 0 4px; font-size: 15px; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.faq details {
  margin: 10px 0 0;
  padding: 12px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "▸";
  display: inline-block;
  width: 1.1em;
  color: var(--accent);
  transition: transform .18s ease;
}
.faq details[open] summary::before { transform: rotate(90deg); }
.faq details > *:not(summary) { margin-top: 8px; }
.faq details p:last-child { margin-bottom: 2px; }

@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
  .cat-hero { gap: 12px; padding: 18px 14px; }
  .cat-hero img.cat { width: 84px; height: 84px; }
  .shots { margin-left: -16px; margin-right: -16px; padding-left: 16px; padding-right: 16px; }
  .shot { flex-basis: 200px; }
}

/* 反馈表单（/feedback） */
.fb-form {
  margin: 20px 0 18px;
  padding: 18px 18px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.fb-form label {
  display: block;
  margin: 14px 0 6px;
  font-size: 14px;
  font-weight: 600;
}
.fb-form label:first-child { margin-top: 0; }
.fb-form select,
.fb-form textarea,
.fb-form input[type="text"] {
  width: 100%;
  font: inherit;
  font-size: 16px; /* iOS 低于 16px 会自动放大页面 */
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
}
.fb-form textarea { resize: vertical; min-height: 150px; line-height: 1.6; }
.fb-form select:focus,
.fb-form textarea:focus,
.fb-form input:focus { outline: 2px solid var(--honey); border-color: var(--accent); }
.fb-form .note { margin: 6px 0 0; font-size: 13px; }
.fb-count { margin: 4px 0 0; text-align: right; font-size: 12px; color: var(--muted); }
.fb-meta { margin: 14px 0 0; font-size: 13px; color: var(--muted); }
.fb-meta span { font-weight: 600; }
.fb-submit { margin-top: 16px; border: 0; font-size: 16px; padding: 12px 22px; cursor: pointer; }
.fb-submit:disabled { opacity: .6; cursor: default; }
.fb-status { min-height: 1.6em; margin: 12px 0 0; font-size: 15px; }
.fb-status.ok { color: #4F7A47; font-weight: 600; }
.fb-status.bad { color: #B4483A; }
.fb-hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.fb-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 4px;
}
.button.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}