/* ============================================================
   乡音 Xiangyin · 极简主义样式（温暖米白 + 深棕 + 朱红）
   ============================================================ */

:root {
  --bg:           #faf6ee;   /* 米白背景 */
  --bg-soft:      #f3ece0;   /* 软浅米 */
  --panel:        #ffffff;   /* 卡片白 */
  --ink:          #2c1a12;   /* 深棕墨色 */
  --ink-soft:     #5a4234;
  --ink-muted:    #8a7062;
  --line:         #e4d8c4;
  --line-strong:  #cbb89a;

  --accent:       #b2312e;   /* 朱红 */
  --accent-soft:  #e9c5c4;
  --gold:         #a47a3b;   /* 淡金 */
  --gold-light:   #e0c98e;

  --shadow-sm:    0 1px 2px rgba(44, 26, 18, .05), 0 1px 1px rgba(44, 26, 18, .04);
  --shadow-md:    0 4px 14px rgba(44, 26, 18, .07), 0 2px 4px rgba(44, 26, 18, .05);
  --shadow-lg:    0 12px 40px rgba(44, 26, 18, .1);
  --radius-sm:    6px;
  --radius-md:    10px;
  --radius-lg:    16px;

  --font-serif:   "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-sans:    "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", Consolas, ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 80px;
}

/* ============================================================
   Header
   ============================================================ */

.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 4px 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-seal {
  width: 58px; height: 58px;
  background: var(--accent);
  color: #fff6e9;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 34px;
  line-height: 58px;
  text-align: center;
  border-radius: 8px;
  box-shadow: var(--shadow-md), inset 0 0 0 2px rgba(255, 246, 233, 0.25);
  transform: rotate(-2deg);
  user-select: none;
}

.brand-text h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 32px;
  margin: 0;
  letter-spacing: 0.3em;
  color: var(--ink);
}
.brand-sub {
  margin: 4px 0 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  font-family: var(--font-serif);
}

.settings {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.model-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}
.model-label select {
  padding: 7px 28px 7px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--ink);
  font-family: inherit;
  font-size: 13px;
  min-width: 220px;
  outline: none;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.model-label select:hover { border-color: var(--accent); }
.model-label select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.dir-switch {
  display: inline-flex;
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 3px;
}
.dir-btn {
  border: 0;
  padding: 7px 18px;
  font-size: 13px;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: inherit;
  transition: all .2s;
}
.dir-btn:hover { color: var(--ink); }
.dir-btn.active {
  background: var(--ink);
  color: #fff8ec;
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   翻译区（两栏）
   ============================================================ */

.translate-section {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 22px;
  margin-bottom: 32px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px 22px 18px;
  box-shadow: var(--shadow-sm);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 10px;
  font-weight: 600;
}
.tag-dot {
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(164,122,59,.12);
}
.tag-dot.origin { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.tag-dot.out    { background: #3f7a52; box-shadow: 0 0 0 3px rgba(63,122,82,.12); }

textarea, input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-serif);
  font-size: 15px;
  background: var(--bg-soft);
  color: var(--ink);
  outline: none;
  transition: border-color .15s, box-shadow .15s, background .15s;
  resize: vertical;
}
textarea:focus, input[type="text"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background: #fff;
}
textarea { min-height: 120px; }

.origin-hint, .muted-tip {
  font-size: 12px;
  color: var(--ink-muted);
  font-weight: 400;
}

.origin-row { margin-top: 16px; }
.origin-box {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.origin-meta {
  font-size: 12px;
  color: var(--ink-muted);
  padding: 2px 2px 0;
  min-height: 1em;
}
.origin-meta .conf-high { color: #3f7a52; font-weight: 600; }
.origin-meta .conf-mid  { color: var(--gold); font-weight: 600; }
.origin-meta .conf-low  { color: var(--accent); font-weight: 600; }

.action-row {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary, .btn-ghost {
  padding: 11px 22px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .08s, box-shadow .15s, background .15s;
}
.btn-primary {
  background: var(--accent);
  color: #fff8ec;
  box-shadow: 0 3px 10px rgba(178,49,46,.22);
}
.btn-primary:hover { background: #9f2825; }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 1px 4px rgba(178,49,46,.25); }
.btn-primary:disabled, .btn-ghost:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none !important;
}
.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--bg-soft); color: var(--ink); }

.status-text {
  font-size: 13px;
  color: var(--ink-muted);
  min-height: 1em;
}
.status-text.err { color: var(--accent); }
.status-text.ok  { color: #3f7a52; }

/* ============================================================
   输出区
   ============================================================ */
.output-col { min-height: 420px; display: flex; flex-direction: column; }
.output-area { flex: 1; }
.out-meta { margin-left: auto; font-size: 12px; color: var(--ink-muted); font-weight: 400; }

.empty-out {
  height: 100%;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink-muted);
  text-align: center;
  padding: 20px;
}
.empty-icon {
  font-family: var(--font-serif);
  font-size: 60px;
  color: var(--line-strong);
  margin-bottom: 12px;
  line-height: 1;
}
.empty-text { font-size: 15px; color: var(--ink-soft); margin: 0 0 6px; }
.empty-sub  { font-size: 12px; margin: 0; }

/* ---- 三版本卡片 ---- */
.version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.ver-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 16px 12px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s, box-shadow .15s;
  position: relative;
}
.ver-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-md); }

.ver-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.ver-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ver-temp {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-family: var(--font-mono);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-muted);
}
.ver-actions { display: flex; gap: 6px; }
.icon-btn {
  border: 1px solid var(--line);
  background: transparent;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 12px;
  font-family: inherit;
  transition: all .15s;
}
.icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.ver-body {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 40px;
}

/* 流式输入的光标 */
.ver-body.streaming::after {
  content: "▍";
  color: var(--accent);
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* 逐词对齐高亮：原文片段与译文片段 */
.align-src, .align-tgt {
  border-bottom: 1px dotted transparent;
  transition: background .1s, border-color .1s;
  cursor: pointer;
  border-radius: 2px;
  padding: 0 1px;
}
.align-src.highlight { background: #fff3a8; border-color: #c9a100; }
.align-tgt.highlight { background: #d8eccd; border-color: #62936e; }

/* ---- 英语→方言 结果（注音） ---- */
.e2d-wrap {
  padding: 8px 4px;
}
.e2d-translation {
  font-family: var(--font-serif);
  font-size: 26px;
  line-height: 2.4;
  letter-spacing: 0.02em;
  color: var(--ink);
  word-break: break-word;
  white-space: pre-wrap;
}
/* 注音 <ruby> 样式 */
.e2d-translation ruby {
  display: inline-flex;
  flex-direction: column-reverse;
  align-items: center;
  vertical-align: bottom;
  line-height: 1.1;
  margin: 0 1px;
}
.e2d-translation rt {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.2;
  padding: 0 0 3px 0;
  ruby-position: over;
  text-align: center;
  user-select: none;
}
.e2d-translation rb { font-family: var(--font-serif); }

.e2d-translation.streaming::after {
  content: "▍";
  color: var(--accent);
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
  font-size: 18px;
}

.e2d-notes {
  margin-top: 18px;
  padding: 12px 14px;
  border-left: 3px solid var(--gold);
  background: var(--bg-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.75;
  white-space: pre-wrap;
  min-height: 1em;
}
.e2d-actions {
  margin-top: 14px;
  display: flex;
  gap: 8px;
}

/* ============================================================
   科普卡片
   ============================================================ */
.culture-section, .board-section {
  margin-top: 40px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.12em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sec-mark {
  color: var(--accent);
  font-size: 20px;
  transform: translateY(-2px);
}
.cache-tag, .board-hint {
  font-size: 12px;
  color: var(--ink-muted);
}
.cache-tag.hit {
  color: #3f7a52;
  font-weight: 600;
}

.culture-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.culture-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
}
.culture-loading {
  color: var(--ink-muted);
  font-size: 13px;
  padding: 10px 0;
}

.culture-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
  margin: 0 0 6px;
  color: var(--ink);
}
.culture-summary {
  color: var(--ink-soft);
  line-height: 1.8;
  margin: 6px 0 18px;
  font-family: var(--font-serif);
  font-size: 15px;
  text-indent: 2em;
}
.culture-sections { display: flex; flex-direction: column; gap: 18px; }
.culture-sec h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--accent);
  padding-left: 10px;
  border-left: 3px solid var(--accent);
}
.culture-sec p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.85;
  font-size: 14.5px;
  text-indent: 2em;
}
.culture-examples {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 8px;
}
.culture-examples .ex {
  padding: 10px 12px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
  font-family: var(--font-serif);
  font-size: 14px;
}
.culture-examples .ex .src { color: var(--ink); font-weight: 700; margin-right: 8px; }
.culture-examples .ex .tgt { color: var(--ink-soft); }

.culture-tags {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.culture-tags .tag {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
}

.culture-related {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--ink-muted);
}
.culture-related b { color: var(--ink-soft); margin-right: 8px; }

/* ============================================================
   反馈留言板
   ============================================================ */
.board-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.board-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.board-direction {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.board-direction.d2e { background: #e9f1eb; color: #3f7a52; }
.board-direction.e2d { background: #f1eaea; color: var(--accent); }
.board-region {
  font-size: 12px;
  color: var(--ink-muted);
  margin-left: 10px;
}
.board-meta {
  font-size: 12px;
  color: var(--ink-muted);
}

.board-text {
  margin: 4px 0 10px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}
.board-text .label {
  display: inline-block;
  min-width: 7em;
  font-size: 12px;
  color: var(--ink-muted);
}
.board-text .row { display: block; margin: 3px 0; }
.board-text .suggested {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
}

.board-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}
.vote-group {
  display: flex;
  gap: 4px;
  align-items: center;
}
.vote-btn {
  border: 1px solid var(--line);
  background: transparent;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  color: var(--ink-soft);
  font-family: inherit;
  transition: all .15s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.vote-btn:hover.up { background: #e9f1eb; border-color: #3f7a52; color: #3f7a52; }
.vote-btn:hover.down { background: #f1eaea; border-color: var(--accent); color: var(--accent); }
.vote-btn.active.up { background: #e9f1eb; border-color: #3f7a52; color: #3f7a52; font-weight: 600; }
.vote-btn.active.down { background: #f1eaea; border-color: var(--accent); color: var(--accent); font-weight: 600; }
.vote-count { font-variant-numeric: tabular-nums; min-width: 1em; display: inline-block; text-align: center; }

/* ============================================================
   Modal 反馈弹窗
   ============================================================ */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(44, 26, 18, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(2px);
  padding: 20px;
}
.modal-mask[hidden] { display: none !important; }
[hidden] { display: none !important; }
.modal {
  background: var(--panel);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.modal-head h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}
.modal-close {
  border: 0;
  background: transparent;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: var(--ink-muted);
  padding: 0 6px;
}
.modal-close:hover { color: var(--accent); }
.modal-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-body label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 500;
}
.modal-body input[readonly] {
  background: var(--bg-soft);
  color: var(--ink-muted);
}
.req { color: var(--accent); margin-left: 2px; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 6px;
}

/* ============================================================
   Footer · 免责声明
   ============================================================ */
.site-footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.site-footer details {
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
}
.site-footer summary {
  outline: none;
  font-weight: 600;
  color: var(--ink-soft);
  user-select: none;
  list-style: none;
}
.site-footer summary::-webkit-details-marker { display: none; }
.site-footer summary::before {
  content: "▸ ";
  color: var(--accent);
  display: inline-block;
  transition: transform .15s;
}
.site-footer details[open] summary::before { transform: rotate(90deg); }
.disclaimer {
  margin-top: 10px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  white-space: pre-line;
  line-height: 1.8;
  font-size: 12.5px;
  color: var(--ink-soft);
}
.copyright {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.1em;
}

/* ============================================================
   响应式：移动端
   ============================================================ */
@media (max-width: 900px) {
  .page { padding: 20px 16px 60px; }
  .translate-section {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .settings { align-items: flex-start; }
  .brand-text h1 { font-size: 26px; }
  .brand-seal { width: 52px; height: 52px; line-height: 52px; font-size: 30px; }
  .culture-card { padding: 20px 18px; }
  .culture-title { font-size: 22px; }
  .e2d-translation { font-size: 22px; line-height: 2.2; }
  .e2d-translation rt { font-size: 11px; }
}

@media (max-width: 520px) {
  .brand-text h1 { letter-spacing: 0.2em; }
  .dir-btn { padding: 6px 12px; font-size: 12px; }
  .model-label select { min-width: 0; width: 100%; }
  .model-label { width: 100%; }
  .e2d-translation { font-size: 20px; }
}