:root {
  --paper: #f2ede3;
  --paper-2: #faf7f0;
  --ink: #24211d;
  --ink-soft: #4d473e;
  --ink-faint: #8b8174;
  --line: rgba(36, 33, 29, 0.13);
  --line-soft: rgba(36, 33, 29, 0.07);
  --seal: #a8332b;
  --serif: "Source Han Serif SC", "Songti SC", "STSong", "Noto Serif CJK SC", "Noto Serif SC", "SimSun", "宋体", Georgia, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.wash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(120% 80% at 10% -10%, rgba(36, 33, 29, 0.06), transparent 60%),
    radial-gradient(90% 70% at 100% 0%, rgba(36, 33, 29, 0.04), transparent 55%),
    radial-gradient(60% 50% at 50% 110%, rgba(168, 51, 43, 0.045), transparent 70%);
}

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 26px 12px;
  border-bottom: 1px solid var(--line-soft);
  flex: 0 0 auto;
}

.brand-ink {
  font-family: var(--serif);
  font-size: 24px;
  letter-spacing: 0.18em;
  border-bottom: 2px solid var(--seal);
  line-height: 1.25;
  padding-bottom: 1px;
}

.brand-sub { font-size: 12.5px; color: var(--ink-faint); letter-spacing: 0.05em; }
.status { margin-left: auto; font-size: 12px; color: var(--ink-faint); }

/* ---------------- 三栏 ---------------- */
.desk {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(340px, 1.35fr) minmax(260px, 1fr);
  gap: 0;
}

.col {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

.col-left { border-right: 1px solid var(--line-soft); }
.col-right { border-left: 1px solid var(--line-soft); }

.col-title {
  flex: 0 0 auto;
  margin: 0;
  padding: 14px 20px 10px;
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--line-soft);
}

.col-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 16px 20px 28px;
}

.col-body::-webkit-scrollbar { width: 8px; }
.col-body::-webkit-scrollbar-thumb { background: rgba(36, 33, 29, 0.14); border-radius: 4px; }
.col-body::-webkit-scrollbar-track { background: transparent; }

/* ---------------- 左栏内容 ---------------- */
.empty, .tip { color: var(--ink-faint); font-size: 13px; line-height: 1.95; margin: 0 0 14px; }

.part { margin: 0 0 20px; }

.part-label {
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--seal);
  margin: 0 0 6px;
  opacity: 0.85;
}

.part-text {
  margin: 0;
  font-family: var(--serif);
  font-size: 14.5px;
  line-height: 2.05;
  color: var(--ink-soft);
  white-space: pre-wrap;
}

.part-text.strong { color: var(--ink); }

/* ---------------- 中栏 ---------------- */
.composer { flex: 0 0 auto; padding: 18px 24px 14px; border-bottom: 1px solid var(--line-soft); }

textarea {
  width: 100%;
  display: block;
  padding: 14px 16px;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
  background: rgba(255, 253, 248, 0.75);
  border: 1px solid var(--line);
  border-radius: 4px;
  outline: none;
  resize: none;
  transition: border-color 0.25s, background 0.25s;
}

textarea::placeholder { color: #a9a094; }
textarea:focus { border-color: rgba(36, 33, 29, 0.32); background: rgba(255, 253, 248, 0.98); }

.controls { margin-top: 12px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.form-note { font-family: var(--serif); font-size: 13.5px; color: var(--ink-faint); }
.form-note b { color: var(--seal); font-weight: 500; }

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font-size: 12.5px;
  color: var(--ink-faint);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.compose {
  margin-left: auto;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  color: #f7f3ea;
  background: #2a2622;
  border: none;
  border-radius: 4px;
  padding: 9px 22px;
  cursor: pointer;
  transition: background 0.2s, transform 0.12s, opacity 0.2s;
}

.compose:hover { background: #3a3430; }
.compose:active { transform: translateY(1px); }
.compose[disabled] { opacity: 0.45; cursor: default; }

.hint { margin: 10px 2px 0; font-size: 12.5px; color: var(--ink-faint); min-height: 1.4em; }
.hint.warn { color: var(--seal); }

.poem-wrap { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 22px 24px 32px; }
.poem-wrap::-webkit-scrollbar { width: 8px; }
.poem-wrap::-webkit-scrollbar-thumb { background: rgba(36, 33, 29, 0.14); border-radius: 4px; }

.poem {
  position: relative;
  padding: 30px 28px 30px;
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--line);
  border-radius: 5px;
  box-shadow: 0 1px 2px rgba(40, 34, 26, 0.04), 0 16px 44px -30px rgba(40, 34, 26, 0.5);
  animation: rise 0.45s ease-out;
}

@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.poem-scene {
  margin: 0 0 22px;
  padding-left: 12px;
  border-left: 2px solid rgba(168, 51, 43, 0.3);
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-faint);
}
.poem-scene:empty { display: none; }

.poem-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-align: center;
  text-indent: 0.18em;
}

.poem-form {
  margin: 6px 0 0;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.26em;
  text-indent: 0.26em;
  color: var(--ink-faint);
}

.poem-body {
  margin: 24px 0 0;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 2.1;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--ink);
  min-height: 3em;
}

.poem-body .line { min-height: 1.2em; user-select: text; }
.poem-body .stanza-gap { height: 0.9em; }

.seal {
  position: absolute;
  right: 20px;
  bottom: 18px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 12px;
  writing-mode: vertical-rl;
  color: var(--seal);
  border: 1.5px solid rgba(168, 51, 43, 0.7);
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.seal.on { opacity: 0.85; }

.caret {
  display: inline-block;
  width: 0.42em;
  height: 1em;
  margin-left: 0.08em;
  vertical-align: -0.12em;
  background: var(--ink);
  opacity: 0.45;
  animation: blink 1.05s steps(1, end) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* 校验结果 */
.verdict { margin-top: 14px; font-size: 12.5px; line-height: 1.9; color: var(--ink-faint); }
.verdict .ok { color: #4a6b4a; }
.verdict .warn-line { color: #8a6d3b; }
.verdict .err-line { color: var(--seal); }
.verdict ul { margin: 6px 0 0; padding-left: 18px; }

.actions { margin-top: 16px; display: flex; gap: 10px; justify-content: center; }
.actions button {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-soft);
  background: rgba(255, 253, 248, 0.7);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 6px 15px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.actions button:hover { color: var(--ink); border-color: rgba(36, 33, 29, 0.3); background: #fffdf8; }

.toast { margin-top: 12px; text-align: center; font-size: 12.5px; color: var(--ink-faint); min-height: 1.4em; opacity: 0; transition: opacity 0.3s; }
.toast.on { opacity: 1; }

/* ---------------- 右栏 ---------------- */
.quick { margin: 16px 0 0; }
.quick-label { display: block; font-family: var(--serif); font-size: 12px; letter-spacing: 0.2em; color: var(--ink-faint); margin-bottom: 8px; }

.own-form { margin: 18px 0 0; }
.own-form input {
  width: 100%;
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px dashed var(--line);
  padding: 5px 2px;
  outline: none;
}
.own-form input:focus { border-bottom-color: rgba(36, 33, 29, 0.4); }
.own-form input::placeholder { color: #b3aa9d; }
.own-form .hint2 { margin: 6px 0 0; }

.forms { display: flex; flex-wrap: wrap; gap: 6px; }

.forms button {
  font-family: var(--serif);
  font-size: 13px;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.forms button:hover { color: var(--ink); background: rgba(36, 33, 29, 0.045); }
.forms button[aria-pressed="true"] { color: var(--seal); border-color: rgba(168, 51, 43, 0.42); background: rgba(168, 51, 43, 0.05); }

/* 诗人按钮略窄一点，一栏里放得下 */
.forms.poets button { font-size: 12.5px; padding: 3px 10px; }

.refine {
  margin-top: 18px;
  width: 100%;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  color: var(--ink);
  background: rgba(255, 253, 248, 0.85);
  border: 1px solid rgba(36, 33, 29, 0.22);
  border-radius: 4px;
  padding: 9px 0;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}
.refine:hover:not([disabled]) { background: #fffdf8; }
.refine[disabled] { opacity: 0.42; cursor: default; }

.hint2 { margin: 10px 0 0; font-size: 12.5px; color: var(--ink-faint); min-height: 1.3em; }

footer {
  flex: 0 0 auto;
  padding: 10px 26px 12px;
  border-top: 1px solid var(--line-soft);
  text-align: center;
  font-size: 11.5px;
  color: #a49b8d;
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------------- 账号与密钥工具栏 ---------------- */
.toolbar {
  position: relative;
  z-index: 3;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 8px 26px;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(250, 247, 240, 0.86), rgba(250, 247, 240, 0.5));
  font-size: 12.5px;
}
.tb-left { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.tb-user {
  font-family: var(--serif);
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  max-width: 22ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tb-quota { color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.tb-quota.ok { color: #3f6b4a; }
.tb-quota.paid { color: #8a6a1f; }
.tb-quota.out { color: var(--seal); }
.tb-quota.warn { color: var(--seal); }

.tb-right { display: flex; align-items: center; gap: 8px; }
.tb-btn {
  font: inherit;
  font-size: 12.5px;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper-2);
  color: var(--ink-soft);
  cursor: pointer;
}
.tb-btn:hover { background: #fffdf8; color: var(--ink); }
.tb-btn.primary { background: var(--seal); border-color: var(--seal); color: #f8f3ea; }
.tb-btn.primary:hover { background: #963026; }
.tb-btn.ghost { border-color: transparent; background: transparent; color: var(--ink-faint); }
.tb-btn[disabled] { opacity: 0.45; cursor: default; }
.tb-key {
  font: inherit;
  font-size: 12.5px;
  width: 8.5em;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper-2);
  color: var(--ink);
  letter-spacing: 0.18em;
}
.tb-key:focus { outline: 2px solid rgba(168, 51, 43, 0.28); outline-offset: 1px; }

/* ---------------- 弹出面板 ---------------- */
.sheet {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(36, 33, 29, 0.34);
  overflow: auto;
}
.sheet[hidden] { display: none; }
.sheet-card {
  width: min(560px, 100%);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 24px 18px;
  box-shadow: 0 18px 48px rgba(36, 33, 29, 0.22);
}
.sheet-card h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.sheet-sub { margin: 0 0 14px; font-size: 12.5px; color: var(--ink-faint); }
.sheet-card label { display: block; margin: 10px 0 4px; font-size: 12.5px; color: var(--ink-soft); }
.sheet-card input[type='email'],
.sheet-card input[type='password'] {
  width: 100%;
  font: inherit;
  font-size: 14px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
}
.sheet-msg { min-height: 1.4em; margin: 10px 0 0; font-size: 12.5px; color: var(--ink-faint); }
.sheet-msg.warn { color: var(--seal); }
.sheet-msg.ok { color: #3f6b4a; }
.sheet-btns { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.sheet-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  line-height: 1.75;
  color: var(--ink-faint);
}

.pay-box { display: flex; gap: 18px; align-items: flex-start; }
.pay-qr {
  width: 190px;
  flex: 0 0 auto;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: #fff;
}
.pay-info { min-width: 0; font-size: 13px; }
.pay-info p { margin: 0 0 8px; }
.pay-note { color: var(--ink-soft); }
.pay-steps { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.pay-steps li { margin-bottom: 10px; }
.pay-row { display: flex; gap: 8px; margin-top: 6px; }
.pay-row input {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  font-size: 13px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
}
@media (max-width: 620px) {
  .pay-box { flex-direction: column; }
  .pay-qr { width: 150px; }
}

/* ---------------- 管理页 ---------------- */
.admin-wrap { max-width: 900px; margin: 0 auto; padding: 26px 22px 60px; }
.admin-wrap h1 { font-family: var(--serif); font-size: 22px; letter-spacing: 0.08em; margin: 0 0 6px; }
.admin-wrap h2 { font-family: var(--serif); font-size: 16px; letter-spacing: 0.06em; margin: 28px 0 10px; }
.admin-wrap table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-wrap th, .admin-wrap td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.admin-wrap th { color: var(--ink-faint); font-weight: 500; }
.admin-wrap code { background: #ebe4d6; padding: 1px 5px; border-radius: 3px; font-size: 12.5px; }
.admin-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 10px 0; }
.admin-row input { font: inherit; font-size: 13px; padding: 5px 9px; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
.admin-row input.wide { flex: 1 1 260px; }
.admin-msg { min-height: 1.4em; font-size: 12.5px; color: var(--ink-faint); }
.admin-msg.warn { color: var(--seal); }
.admin-msg.ok { color: #3f6b4a; }

/* ---------------- 窄屏：上下堆叠 ---------------- */
@media (max-width: 980px) {
  body { overflow: auto; }
  .desk { grid-template-columns: 1fr; }
  .col-left, .col-right { border: none; border-top: 1px solid var(--line-soft); }
  .col-left { order: 3; }
  .col-center { order: 1; }
  .col-right { order: 2; }
  .col-body { overflow: visible; }
  .poem-wrap { overflow: visible; }
  .brand-sub { display: none; }
}

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }