:root {
  --ink: #000;
  --paper: #fff;
  --muted: #666;
  --hair: #000;
  --thin: #999;
  --shadow-ink: #000;
  --focus: #1a73e8;
  --danger: #c62828;
  --ok: #1b7a3f;
  --wash: #ededed;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #fff;
    --paper: #000;
    --muted: #9a9a9a;
    --hair: #fff;
    --thin: #6b6b6b;
    --focus: #6ea8fe;
    --danger: #ff6b6b;
    --ok: #4ec97a;
    --wash: #262626;
  }
}

* { box-sizing: border-box; }

::selection { background: var(--ink); color: var(--paper); }

body {
  margin: 0;
  padding: 0 20px 64px;
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.55 ui-sans-serif, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.center {
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  min-height: 100vh; padding: 24px;
}

.site-footer {
  --contact-size: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  width: 100%; max-width: 1040px; margin: 36px auto 0;
  color: rgb(0 0 0 / 70%); text-align: left; font-size: 14px;
}
.site-footer a {
  color: inherit;
  text-decoration: none;
}
body.center .site-footer { margin-top: 24px; }



h1 {
  font-size: 22px; margin: 0; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
}

h2 {
  font-size: 14px; margin: 0 0 18px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}


.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 15px; }
.muted { color: var(--muted); }



header {
  display: flex; flex-wrap: wrap; gap: 14px;
  align-items: baseline; justify-content: space-between;
  max-width: 1040px; margin: 28px auto 36px;
}

.status { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; }
.status .plain-link {
  color: var(--muted); text-decoration: none; padding: 4px 0;
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.status .plain-link:hover {
  color: var(--ink); text-decoration: underline; text-underline-offset: 2px;
}
.modal { display: none; }
.modal:target {
  display: flex; align-items: center; justify-content: center;
  position: fixed; inset: 0; z-index: 50;
}
.modal-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, .55); }
.modal-card {
  position: relative;
  background: var(--paper); border: 2px solid var(--hair);
  padding: 48px 48px 32px; text-align: center;
  max-width: min(420px, 90vw);
}
.modal-card img { display: block; margin: 0 auto; }
.contact-links { display: flex; gap: 24px; order: 1; }
.contact-icon {
  display: flex; align-items: center; justify-content: center;
  width: var(--contact-size); height: var(--contact-size); padding: 0; margin: 0;
  background: none; border: 0;
  text-decoration: none; letter-spacing: 0;
}
.contact-icon:is(:hover, :active, :focus-visible) .contact-symbol { color: var(--contact-color); opacity: 1; }
.contact-symbol {
  opacity: .7;
  width: var(--contact-size); height: var(--contact-size); background: currentColor;
  mask: var(--contact-icon) center / contain no-repeat;
}
.contact-mail { --contact-icon: url("/static/icons/gmail.svg"); --contact-color: #ea4335; }
.contact-xiaohongshu {
  --contact-icon: url("/static/icons/xiaohongshu.svg");
  --contact-color: #ff2442;
  width: calc(var(--contact-size) * 2.8); height: var(--contact-size);
  mask-size: calc(var(--contact-size) * 2.8) calc(var(--contact-size) * 2.8);
}
.contact-icon:has(.contact-xiaohongshu) { width: calc(var(--contact-size) * 2.8); }
.contact-telegram { --contact-icon: url("/static/icons/telegram.svg"); --contact-color: #26a5e4; }
.contact-github { --contact-icon: url("/static/icons/github.svg"); --contact-color: #181717; }
@media (prefers-color-scheme: dark) {
  .site-footer { color: rgb(255 255 255 / 80%); }
  .contact-github { --contact-color: #fff; }
}
.donate-note {
  margin: 24px 0 0;
  color: var(--muted); font-size: 13px; text-align: left;
}
.donate-note p { margin: 0; }
.donate-note p + p { margin-top: 12px; }
.donate-note a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
@media (prefers-color-scheme: dark) {
  .modal-backdrop { background: rgba(0, 0, 0, .75); }
}



#who-email {
  color: var(--muted);
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}


button.plain {
  background: none; border: 0; margin: 0; padding: 4px 2px;
  color: var(--muted); cursor: pointer;
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0; text-transform: none;
}

button.plain.manage {
  background: var(--wash); padding: 4px 10px;
  color: var(--ink);
}
button.plain.manage:hover:not(:disabled) { background: var(--wash); color: var(--ink); }
.actions-row .actions .plain { padding: 4px 0; }


button.plain:hover:not(:disabled) {
  background: none; color: var(--ink);
  text-decoration: underline; text-underline-offset: 2px;
}
button.plain:active:not(:disabled) { background: none; color: var(--ink); }


button.plain.danger { border: 0; background: none; color: var(--danger); }
button.plain.danger:hover:not(:disabled),
button.plain.danger:active:not(:disabled) { background: none; color: var(--danger); }


#records-title { font-size: 13px; }

.ts-short { display: none; }


#records-card { position: relative; }
.card-close {
  position: absolute; top: 10px; right: 10px;
  background: none; margin: 0; padding: 6px;

  border: 2px solid transparent;
  color: var(--ink); cursor: pointer; text-decoration: none;

  display: flex; align-items: center; justify-content: center;
  line-height: 0;
}
.card-close svg { display: block; }

.card-close:hover:not(:disabled) { background: none; color: var(--ink); border-color: var(--hair); }
.card-close:active:not(:disabled) { background: none; color: var(--ink); border-color: var(--hair); }



.card {
  max-width: 1040px; margin: 0 auto 22px;
  background: var(--paper);
  border: 2px solid var(--hair);
  padding: 22px 24px;
}

.card.login { width: 100%; max-width: 420px; padding: 28px 26px; }


.card.login h1 { margin-bottom: 10px; }
.card.login > .muted { margin: 0 0 22px; font-size: 13px; }
.card.login .msg { margin-top: 16px; }

.donors { max-width: 1040px; margin: 32px auto 22px; font-size: 15px; }
.donors-title { margin: 0 0 24px; text-align: center; }
.donors-empty { text-align: center; }
.donors .table-wrap { width: fit-content; max-width: 100%; margin: 0 auto; }
.donors table {
  width: auto; margin: 0 auto; font-size: 15px;
  border-top: 1.5px solid var(--hair); border-bottom: 1.5px solid var(--hair);
}
.donors thead { border-bottom: 1px solid var(--hair); }
.donors th, .donors td { padding: 8px 32px; border-bottom: 0; font-size: inherit; }
.donors th { color: var(--ink); font-weight: normal; text-align: center; }
.donors td { white-space: nowrap; }
.donors td.donor-order { text-align: left; color: var(--muted); }
.donors .donor-remark { text-align: center; white-space: normal; overflow-wrap: anywhere; }
.donors .donor-name { text-align: center; }
.donors .donor-amount { text-align: center; }
.donors td.donor-amount { color: var(--muted); }

@media (min-width: 721px) {
  .donors th:first-child, .donors td:first-child { padding-left: 16px; }
  .donors th:last-child, .donors td:last-child { padding-right: 16px; }
}



.fieldrow {
  display: flex; flex-wrap: wrap; gap: 16px 20px; align-items: flex-end;
}
.fieldrow > label, .fieldrow > .field { flex: 1 1 168px; min-width: 126px; }
.fieldrow > button { flex: 0 0 auto; }


.fieldrow input { height: 45px; }

.secret { position: relative; display: block; }
.secret input { padding-right: 38px; }
.secret .reveal {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; padding: 0;
  background: none; border: 0; border-radius: 0;
  color: var(--muted); cursor: pointer;
}
.secret .reveal:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.secret .reveal { -webkit-tap-highlight-color: transparent; user-select: none; }
.secret .reveal:hover:not(:disabled),
.secret .reveal:active:not(:disabled),
.secret .reveal[aria-pressed="true"] {
  background: none; color: var(--muted);
}
.secret .eye-off { display: none; }
.secret .reveal[aria-pressed="true"] .eye-on { display: none; }
.secret .reveal[aria-pressed="true"] .eye-off { display: inline; }


@media (max-width: 720px) {
  .site-footer { flex-direction: column; gap: 12px; text-align: center; }
  .footer-credit { white-space: nowrap; }
  body.donate { padding-left: 16px; padding-right: 16px; }
  .donors .table-wrap { width: 100%; }
  .donors table { width: 100%; table-layout: fixed; }
  .donors th, .donors td { padding-left: 4px; padding-right: 4px; }
  .donors th { white-space: nowrap; }
  .donors .donor-name, .donors .donor-amount { width: calc(5em + 8px); }
  .donors .donor-order { display: none; }
  .donor-name-text {
    display: block; width: 5em;
    overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
  }

  header { margin-bottom: 26px; }

  .fieldrow > button { flex: none; width: 100%; }


  .table-wrap { overflow-x: visible; }
  table.accounts thead { display: none; }
  table.accounts tr.account { display: block; padding: 12px 0 2px; border-bottom: 2px solid var(--ink); }

  table.accounts tr.account.is-open { border-bottom: 1px solid var(--thin); }
  table.accounts tr.account td {
    display: flex; align-items: center; justify-content: space-between; gap: 14px;
    padding: 5px 0; border: 0; white-space: normal;
  }

  table.accounts tr.account td[data-label]::before {
    content: attr(data-label); flex: 0 0 auto;
    color: var(--muted);
    font-family: ui-sans-serif, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 13px;
  }

  table.accounts tr.account td[data-label] { min-height: 34px; }
  table.accounts input[type="time"] { padding-top: 1px; padding-bottom: 1px; }

  table.accounts tr.account td:last-child { justify-content: flex-end; }

  table.accounts .plain { padding: 6px 10px; }
  table.accounts tr.actions-row { display: block; }
  table.accounts tr.actions-row > td { display: block; padding: 10px 0 14px; border-bottom: 2px solid var(--ink); }
  table.accounts tr.actions-row .actions { flex-wrap: wrap; }


  #records th, #records td { white-space: normal; }

  #records td:nth-child(1) { white-space: normal; width: 1%; }
  .ts-full { display: none; }
  .ts-short { display: inline; }
}
.fieldrow > button {
  height: 45px; padding: 0 18px;
  display: inline-flex; align-items: center; justify-content: center;
}
.fieldblock > .msg { margin-top: 10px; }


input[type="number"] { appearance: textfield; -moz-appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none; appearance: none;
  margin: 0;
}


form {
  display: grid;
  gap: 16px;
  align-content: start;
}
form .actions { margin-top: 0; }

.grid {
  display: grid; gap: 18px 22px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

label, .field {
  display: flex; flex-direction: column; gap: 8px;
  font-size: 12px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
}



.row { display: flex; gap: 10px; }
.row > input { flex: 1 1 auto; min-width: 0; }
.row > button { flex: none; }

input, select, textarea {
  font: 15px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--ink); background: var(--paper);
  border: 2px solid var(--hair);
  border-radius: 0; padding: 10px 12px; width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--muted); }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--focus);
}
input[readonly] { color: var(--muted); border-style: dashed; }

input[type="checkbox"] {
  appearance: none; width: 20px; height: 20px; padding: 0;
  border: 2px solid var(--hair); flex: none;
}
input[type="checkbox"]:checked {
  background: var(--ink);
  box-shadow: inset 0 0 0 3px var(--paper);
}
input[type="checkbox"]:focus-visible {
  outline: 3px solid var(--focus); outline-offset: 2px;
}



button {
  font: 700 13px/1 ui-sans-serif, -apple-system, "PingFang SC", sans-serif;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--paper); background: var(--ink);
  border: 2px solid var(--hair); border-radius: 0;
  padding: 11px 18px; cursor: pointer; white-space: nowrap;
}
button:hover:not(:disabled) { background: var(--paper); color: var(--ink); }
button:active:not(:disabled) { background: var(--ink); color: var(--paper); }
button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
button:disabled { color: var(--muted); background: var(--paper); border-color: var(--muted); cursor: default; }

button.ghost { background: var(--paper); color: var(--ink); }
button.ghost:hover:not(:disabled) { background: var(--ink); color: var(--paper); }


button.danger {
  background: var(--paper); color: var(--danger);
  border: 2px solid var(--danger);
}
button.danger:hover:not(:disabled) { background: var(--danger); color: #fff; }

.actions {

  display: flex; align-items: center; gap: 6px 22px; flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--thin);
}



.badge {
  display: inline-block;
  font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 5px 9px; border: 1px solid var(--hair);
  background: var(--paper); color: var(--ink);
}

.badge.ok { background: var(--paper); color: var(--ok); border: 2px solid var(--ok); }
.badge.err {
  background: var(--paper); color: var(--danger);
  border: 2px solid var(--danger);
}


button.check {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; padding: 0;
  border: 2px solid var(--hair); background: var(--paper);
  color: var(--paper);
  cursor: pointer; vertical-align: middle;
}
button.check:hover:not(:disabled) { border-color: var(--ink); background: var(--paper); }
button.check[aria-checked="true"] { background: var(--ink); color: var(--paper); }
button.check[aria-checked="true"]:hover:not(:disabled) { background: var(--ink); }
button.check svg { display: block; }



.banner {
  max-width: 1040px; margin: 0 auto 22px;
  border: 2px solid var(--danger);
  border-left-width: 12px;
  padding: 16px 20px;
  font-weight: 700;
}




.accounts th, .accounts td { white-space: nowrap; }
.accounts td { vertical-align: middle; }

.actions-row > td { padding: 14px 12px; border-bottom: 1px solid var(--thin); }
.actions-row .actions { border-top: 0; margin: 0; padding: 0; }

.actions-row .msg { margin-top: 12px; font-size: 14px; color: var(--ink); }



.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {

  text-align: center; padding: 10px 12px;
  font: 700 12px/1.2 ui-sans-serif, sans-serif;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
  border-bottom: 2px solid var(--hair);
}
td { text-align: center; padding: 10px 12px; border-bottom: 1px solid var(--thin); }
td.right { text-align: right; }



.msg { font-size: 13px; color: var(--muted); min-height: 20px; margin: 0; }

.msg:empty { display: none; }
.msg.ok { color: var(--ok); }
.msg.err { color: var(--danger); font-weight: 700; }

b.err, td.err { color: var(--danger); }
td.ok { color: var(--ok); }

.hidden { display: none !important; }

.accounts input[type="time"] {
  width: 72px; padding: 5px 6px; font-size: 14px; text-align: center;
  border: 1px solid var(--thin); border-radius: 4px;
}
.accounts input[type="time"]:hover { background: var(--wash); }
.accounts input[type="time"]:focus-visible { border-color: var(--focus); }
.accounts input[type="time"]::-webkit-calendar-picker-indicator { display: none; }
.accounts input[type="time"]::-webkit-inner-spin-button { display: none; }
.accounts input[type="time"]::-webkit-datetime-edit { display: flex; flex: 1; justify-content: center; padding: 0; }
.accounts input[type="time"]::-webkit-datetime-edit-fields-wrapper { display: flex; justify-content: center; width: 100%; padding: 0; }
.accounts input[type="time"]::-webkit-date-and-time-value { width: 100%; margin: 0; text-align: center; }


/* ---------- Key 激活 / 管理后台 ---------- */
.or { text-align: center; margin: 18px 0 6px; font-size: 12px; letter-spacing: .12em; }
.note { margin: 16px 0 0; font-size: 12px; line-height: 1.65; }

.keyform {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px;
  margin: 0 0 4px;
}
.keyform label { flex: 1 1 260px; max-width: 360px; }
.keyform input { max-width: 360px; }

.stats {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.stat { border: 1px solid var(--thin); padding: 12px 14px; }
.stat b { display: block; font: 700 22px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; }
.stat span { color: var(--muted); font-size: 12px; letter-spacing: .08em; }

.keybox { border: 2px solid var(--ok); padding: 14px 16px; margin-top: 16px; }
.keybox b { display: block; margin-bottom: 10px; font-size: 13px; }
.keybox code {
  display: block; font: 700 15px/1.9 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .14em; word-break: break-all;
}

td form { display: inline; }

.help p { margin: 0 0 10px; }
.help p:last-child { margin-bottom: 0; }
.help ul { margin: 0; padding-left: 22px; }
.help li { margin-bottom: 6px; }
.help table { margin-top: 4px; }

/* 后台表格在窄屏隐藏次要列，避免列被挤成竖排 */
@media (max-width: 720px) {
  table.admin-keys th:nth-child(4), table.admin-keys td:nth-child(4),
  table.admin-keys th:nth-child(5), table.admin-keys td:nth-child(5),
  table.admin-accounts th:nth-child(4), table.admin-accounts td:nth-child(4),
  table.admin-accounts th:nth-child(5), table.admin-accounts td:nth-child(5) {
    display: none;
  }
  table.admin-keys td, table.admin-accounts td { padding-left: 4px; padding-right: 4px; }
}