/* 基础样式（回复页、认领页、占位页共用）。回复页专用的类都以 rp- 开头，在文件末尾。 */
body { margin: 0; font: 16px/1.6 system-ui, sans-serif; color: #1a1a1a; background: #fff; }
main { max-width: 40rem; margin: 0 auto; padding: 1rem; }
@media (prefers-color-scheme: dark) { body { color: #eee; background: #111; } }

/* 认领页(claim.html)与退订页(u.html)用的样式;回复页不引用这些类 */
.frame { border-radius: 12px; padding: 1.25rem 1rem; margin: 1rem 0; background: #f6f5fb; }
.frame h2 { font-size: 1.4rem; line-height: 1.5; margin: 0 0 .5rem; }
.lead, .hint, .dim, .extFoot { color: #666; }
.hint, .extFoot { font-size: .875rem; }
.declare { border: 1px solid #d9d4f0; border-radius: 8px; padding: .75rem; margin: .75rem 0; font-size: .9375rem; background: #fff; }
.declare b { display: block; font-size: .8125rem; letter-spacing: .1em; color: #5b4bb7; margin-bottom: .25rem; }
.extSection { margin: 1rem 0; }
.extSection .label { display: block; font-size: .8125rem; letter-spacing: .08em; color: #777; margin-bottom: .375rem; }
details.pack { border: 1px solid #ddd; border-radius: 8px; padding: .625rem .75rem; background: #fff; }
.packItem { padding: .5rem 0; font-size: .9375rem; }
.extSection > .packItem { border-top: 1px solid #e6e6e6; }
.extSection > .packItem:first-of-type { border-top: 0; }
.btnRow { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .75rem; }
.btnRow > button, .btnRow > a { flex: 1; min-width: 0; }
button { font: inherit; padding: .625rem .75rem; border-radius: 8px; border: 1px solid #5b4bb7; cursor: pointer; }
.primaryBtn { background: #5b4bb7; color: #fff; }
.secondaryBtn { background: transparent; color: #5b4bb7; }
a.primaryBtn, a.secondaryBtn { display: inline-block; box-sizing: border-box; text-align: center; text-decoration: none; padding: .625rem .75rem; border-radius: 8px; border: 1px solid #5b4bb7; }
.errAction { display: inline-block; margin-top: .25rem; color: #5b4bb7; }
.consent { display: flex; gap: .5rem; align-items: flex-start; margin-top: .75rem; font-size: .9375rem; }
.consent input { margin-top: .3rem; }
.consent a { color: #5b4bb7; }
button:disabled { opacity: .5; cursor: not-allowed; }
.field { display: block; margin-top: .75rem; }
.field input { display: block; width: 100%; box-sizing: border-box; margin-top: .25rem; font: inherit; padding: .5rem; border: 1px solid #bbb; border-radius: 8px; }
.err { color: #b3261e; margin: .5rem 0 0; }
.extFoot { border-top: 1px solid #e6e6e6; margin-top: 1rem; padding-top: .75rem; line-height: 1.5; }
.statePage { text-align: center; padding: 1.5rem .5rem; }
/* 外部页外壳的紫色短线(与退订页共用) */
.accentLine { width: 56px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, #5b4bb7, rgba(91, 75, 183, 0)); margin-bottom: .875rem; }
.brandMark { margin-top: 1.25rem; font-size: .8125rem; letter-spacing: 3px; color: #888; }
@media (prefers-color-scheme: dark) {
  .frame { background: #1c1b26; }
  .accentLine { background: linear-gradient(90deg, #7667d6, rgba(118, 103, 214, 0)); }
  .declare, details.pack { background: #15151b; border-color: #333; }
  .lead, .hint, .dim, .extFoot { color: #aaa; }
  .secondaryBtn { color: #b9aef5; border-color: #b9aef5; }
  .primaryBtn { background: #7667d6; border-color: #7667d6; }
  .field input { background: #15151b; color: #eee; border-color: #444; }
  .err { color: #ff8a80; }
  .errAction, .consent a { color: #b9aef5; }
}

/* ===== 回复页（index.html）：移动端优先，大字号，按钮触控高度 ≥ 44px ===== */
:root {
  --rp-accent: #5b4bb7;
  --rp-accent-fg: #fff;
  --rp-line: #d9d4f0;
  --rp-soft: #f6f5fb;
  --rp-muted: #666;
  --rp-err: #b3261e;
  --rp-surface: #fff;
}
.rp-notice { margin: 0 0 1rem; padding: .75rem 1rem; border-left: 4px solid var(--rp-accent); border-radius: 0 8px 8px 0; background: var(--rp-soft); font-size: 1rem; line-height: 1.6; overflow-wrap: anywhere; }
.rp-title { margin: 0 0 .5rem; font-size: 1.5rem; line-height: 1.4; overflow-wrap: anywhere; }
.rp-lead { margin: 0 0 1rem; color: var(--rp-muted); font-size: 1rem; overflow-wrap: anywhere; }
.rp-btn { display: inline-flex; align-items: center; justify-content: center; box-sizing: border-box; min-height: 44px; min-width: 44px; padding: .625rem 1rem; font: inherit; font-size: 1rem; line-height: 1.3; border-radius: 8px; border: 1px solid var(--rp-accent); cursor: pointer; text-align: center; }
a.rp-btn { text-decoration: none; margin-top: .5rem; }
.rp-btn-primary { background: var(--rp-accent); color: var(--rp-accent-fg); }
.rp-btn-secondary { background: transparent; color: var(--rp-accent); }
.rp-btn-block { display: flex; width: 100%; margin-top: .75rem; }
.rp-btn-small { padding: .25rem .75rem; }
.rp-btn:disabled { opacity: .5; cursor: not-allowed; }
.rp-btn:focus-visible, .rp-textarea:focus-visible, .rp-link:focus-visible { outline: 3px solid var(--rp-accent); outline-offset: 2px; }
.rp-layer { margin: 1.25rem 0; padding: .875rem 1rem; border: 1px solid var(--rp-line); border-radius: 8px; background: var(--rp-surface); }
.rp-layer-title { margin: 0 0 .5rem; font-size: 1.125rem; line-height: 1.4; overflow-wrap: anywhere; }
.rp-layer-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1rem; line-height: 1.7; }
.rp-questions { margin: 1.25rem 0; padding: .875rem 1rem; border: 1px solid var(--rp-line); border-radius: 8px; background: var(--rp-soft); }
.rp-question-list { margin: 0; padding-left: 1.5rem; overflow-wrap: anywhere; line-height: 1.7; }
.rp-question-list li { margin: .25rem 0; }
.rp-form { margin-top: 1.5rem; }
.rp-label { display: block; margin: 0 0 .375rem; font-size: 1rem; font-weight: 600; }
.rp-textarea { display: block; box-sizing: border-box; width: 100%; min-height: 10rem; padding: .75rem; font: inherit; font-size: 1rem; line-height: 1.6; color: inherit; background: var(--rp-surface); border: 1px solid #bbb; border-radius: 8px; resize: vertical; }
.rp-counter { margin: .25rem 0 0; text-align: right; color: var(--rp-muted); font-size: .875rem; }
.rp-over { color: var(--rp-err); font-weight: 600; }
.rp-attach { margin-top: 1rem; }
.rp-hint { margin: 0 0 .5rem; color: var(--rp-muted); font-size: .9375rem; line-height: 1.5; }
.rp-files { list-style: none; margin: 0 0 .5rem; padding: 0; }
.rp-file { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .375rem 0; border-top: 1px solid var(--rp-line); }
.rp-file:first-child { border-top: 0; }
.rp-file-name { min-width: 0; overflow-wrap: anywhere; font-size: 1rem; }
.rp-note { margin: .5rem 0 0; color: var(--rp-err); font-size: .9375rem; line-height: 1.5; overflow-wrap: anywhere; }
.rp-error-box { margin-top: 1rem; }
.rp-error { margin: 0 0 .5rem; color: var(--rp-err); font-size: 1rem; line-height: 1.5; }
.rp-visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.rp-footer { margin-top: 2rem; padding-top: .75rem; border-top: 1px solid var(--rp-line); color: var(--rp-muted); font-size: .9375rem; line-height: 1.6; }
.rp-footer-list { margin: 0 0 .5rem; padding-left: 1.25rem; overflow-wrap: anywhere; }
.rp-footer-list li { margin: .25rem 0; }
.rp-link { color: var(--rp-accent); }
.rp-upgrade { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--rp-line); }
.rp-upgrade .rp-hint { margin-bottom: .75rem; }
.rp-operator { margin: .5rem 0 0; font-size: .875rem; }
/* 安卓下载页:sha256 很长,允许任意处换行 */
.dl code { overflow-wrap: anywhere; font-size: .875rem; }
.dl h3 { font-size: 1.1rem; line-height: 1.5; margin: 1.25rem 0 .5rem; }
.dl ol { padding-left: 1.25rem; line-height: 1.7; }
/* 正式协议页(E-5):表格横向可滚,不撑破手机宽度 */
.legal { line-height: 1.7; overflow-wrap: anywhere; }
.legal h2 { font-size: 1.4rem; line-height: 1.5; margin: 0 0 .75rem; }
.legal h3 { font-size: 1.1rem; line-height: 1.5; margin: 1.5rem 0 .5rem; scroll-margin-top: 1rem; }
.legal li { margin: .25rem 0; }
.legal-table { overflow-x: auto; margin: .75rem 0; }
.legal-table table { border-collapse: collapse; min-width: 32rem; width: 100%; font-size: .9375rem; }
.legal-table th, .legal-table td { border: 1px solid #bbb; padding: .4rem .5rem; text-align: left; vertical-align: top; }
.legal-table th { background: #f0eefa; }
@media (prefers-color-scheme: dark) {
  .legal-table th, .legal-table td { border-color: #444; }
  .legal-table th { background: #1c1b26; }
}
@media (min-width: 40rem) {
  .rp-title { font-size: 1.75rem; }
  .rp-btn-block { width: auto; min-width: 12rem; }
}
@media (prefers-color-scheme: dark) {
  :root { --rp-accent: #7667d6; --rp-line: #333; --rp-soft: #1c1b26; --rp-muted: #aaa; --rp-err: #ff8a80; --rp-surface: #15151b; }
  .rp-btn-secondary { color: #b9aef5; border-color: #b9aef5; }
  .rp-link { color: #b9aef5; }
  .rp-textarea { border-color: #444; }
}