/* ============================================================
   龙南客家非遗数字助手 — 护眼配色 · 专业排版
   国潮文博 × 轻量科技 | 靛青蓝染 × 宣纸暖白 × 赤陶橙
   ============================================================ */

:root {
  --paper: #F7F3EB;
  --paper-deep: #EFE7D8;
  --card: #FFFFFF;
  --ink: #2A2A2A;
  --ink-soft: #5A564E;
  --muted: #9A9284;
  --line: rgba(47, 93, 80, 0.13);

  --primary: #2F5D50;
  --primary-deep: #1F463C;
  --primary-soft: #E4EFEA;
  --primary-faint: #F0F6F3;
  --accent: #C45C26;
  --accent-soft: #FBEDE4;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 8px rgba(42, 42, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(42, 42, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(42, 42, 42, 0.12);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

.app {
  max-width: 440px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  background:
    radial-gradient(800px 300px at 50% -100px, rgba(47, 93, 80, 0.08), transparent 60%),
    var(--paper);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(180deg, rgba(47, 93, 80, 0.97), rgba(31, 70, 60, 0.97));
  color: #FFF8EE;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 2px 12px rgba(31, 70, 60, 0.2);
}

.header-inner { flex: 1; min-width: 0; }

.header-badge {
  display: inline-block;
  font-size: 9.5px;
  letter-spacing: 2px;
  color: rgba(255, 248, 238, 0.7);
  border: 1px solid rgba(255, 248, 238, 0.25);
  border-radius: 999px;
  padding: 1px 8px;
  margin-bottom: 3px;
}

.header-title {
  font-family: "KaiTi", "STKaiti", serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1.5px;
}

.header-sub {
  font-size: 10.5px;
  color: rgba(255, 248, 238, 0.6);
  letter-spacing: 2px;
}

.access-btn {
  flex-shrink: 0;
  font-size: 12px;
  color: #FFF8EE;
  background: rgba(255, 248, 238, 0.12);
  border: 1px solid rgba(255, 248, 238, 0.28);
  border-radius: 999px;
  padding: 5px 12px;
  transition: background 0.2s;
}
.access-btn:active { background: rgba(255, 248, 238, 0.25); }

/* ---------- Main ---------- */
.main {
  flex: 1;
  padding: 14px 12px 24px;
  overflow-y: auto;
}

/* ---------- Hero ---------- */
.hero {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--primary-soft), var(--card));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 14px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.avatar-wrap {
  position: relative;
  width: 96px;
  height: 168px;
  flex-shrink: 0;
}

/* 阿蓝是一套切片动画：底图 + 眨眼层 + 闭口层，三层同一坐标系完全重合，
   所以只在不透明像素处替换，不会出现分层旋转时的那种接缝。 */
.avatar-stage {
  position: absolute;
  inset: 0;
  transform-origin: 50% 100%;
  animation: avatarBreathe 3.8s ease-in-out infinite;
}

.avatar, .avatar-blink, .avatar-mouth {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  display: block;
  pointer-events: none;
}
.avatar-blink, .avatar-mouth { opacity: 0; }
.avatar-blink { animation: avatarBlink 5.4s infinite; }

.avatar-ring {
  position: absolute;
  left: 50%; bottom: -2px;
  transform: translateX(-50%);
  width: 62px; height: 9px;
  background: radial-gradient(ellipse, rgba(47, 93, 80, 0.15), transparent 70%);
  border-radius: 50%;
}

/* 说话：点头 + 口型开合；思考：左右微晃 */
.avatar-wrap.is-talking .avatar-stage { animation: avatarTalk 0.9s ease-in-out infinite; }
.avatar-wrap.is-thinking .avatar-stage { animation: avatarThink 2.4s ease-in-out infinite; }
.avatar-wrap.is-talking .avatar-mouth { animation: avatarMouth 0.34s steps(1, end) infinite; }
.avatar-wrap.is-talking .avatar-ring,
.avatar-wrap.is-thinking .avatar-ring { animation: avatarShadow 0.9s ease-in-out infinite; }

@keyframes avatarBreathe {
  0%, 100% { transform: translateY(0) scaleY(1); }
  50% { transform: translateY(-1px) scaleY(1.014); }
}
@keyframes avatarTalk {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  40% { transform: translateY(-2px) rotate(-1.6deg); }
  75% { transform: translateY(-1px) rotate(0.7deg); }
}
@keyframes avatarThink {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  30% { transform: translateY(-1px) rotate(2.4deg); }
  65% { transform: translateY(-1px) rotate(-1.8deg); }
}
@keyframes avatarBlink {
  0%, 90%, 97%, 100% { opacity: 0; }
  92.5%, 94.5% { opacity: 1; }
}
@keyframes avatarMouth {
  0% { opacity: 1; }
  50% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes avatarShadow {
  0%, 100% { transform: translateX(-50%) scaleX(1); opacity: 1; }
  50% { transform: translateX(-50%) scaleX(0.9); opacity: 0.7; }
}

.hero-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 3px;
}

.hero-name-en {
  font-size: 10px;
  font-weight: 400;
  color: var(--accent);
  margin-left: 3px;
}

.hero-desc {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* ---------- Main Tabs ---------- */
.main-tabs {
  display: flex;
  gap: 3px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

.main-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 7px 4px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  transition: all 0.18s;
}

.main-tab.active {
  background: var(--primary);
  color: #FFF8EE;
  box-shadow: 0 2px 6px rgba(47, 93, 80, 0.2);
}

.main-tab-icon { font-size: 15px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: panelIn 0.2s ease; }
@keyframes panelIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Chat ---------- */
.quick-questions { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }

.chip {
  font-size: 12px;
  color: var(--primary-deep);
  background: var(--card);
  border: 1px solid rgba(47, 93, 80, 0.18);
  border-radius: 999px;
  padding: 5px 10px;
  transition: all 0.15s;
}
.chip:active { background: var(--primary); color: #FFF8EE; border-color: var(--primary); }

.chat-window {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  min-height: 150px;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 6px;
}

.chat-empty { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 16px; color: var(--muted); gap: 4px; }
.chat-empty-icon { font-size: 24px; }
.chat-empty-title { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.chat-empty-hint { font-size: 11px; }

.msg { display: flex; gap: 6px; align-items: flex-end; animation: msgIn 0.2s ease; }
@keyframes msgIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.msg-user { flex-direction: row-reverse; }

.msg-avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--primary-soft); flex-shrink: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; font-size: 13px; }
.msg-avatar svg { width: 22px; height: 22px; }
.msg-avatar-img { width: 100%; height: 100%; object-fit: cover; display: block; }

.msg-bubble { max-width: 78%; padding: 8px 11px; border-radius: 10px; font-size: 13px; line-height: 1.6; word-break: break-word; }
.msg-bot .msg-bubble { background: var(--primary-faint); color: var(--ink); border-bottom-left-radius: 3px; border: 1px solid rgba(47,93,80,0.06); }
.msg-user .msg-bubble { background: var(--primary); color: #FFF8EE; border-bottom-right-radius: 3px; }

/* 答案里挂上来的客家话原声讲解 */
.msg-videos { margin-top: 8px; padding-top: 7px; border-top: 1px dashed rgba(47,93,80,0.18); display: flex; flex-direction: column; gap: 5px; }
.msg-video-chip {
  align-self: flex-start;
  padding: 5px 10px;
  background: var(--card);
  color: var(--accent);
  border: 1px solid rgba(196, 92, 38, 0.35);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.msg-video-chip:hover { background: var(--accent-soft); }
.msg-video-chip:active { background: rgba(196, 92, 38, 0.18); }

.engine-status { font-size: 10px; color: var(--muted); text-align: right; margin-bottom: 6px; }

.input-bar { display: flex; gap: 6px; align-items: center; background: var(--card); border: 1.5px solid rgba(47,93,80,0.2); border-radius: 999px; padding: 4px 4px 4px 14px; box-shadow: var(--shadow); transition: border-color 0.2s; }
.input-bar:focus-within { border-color: var(--primary); }
#chatInput { flex: 1; min-width: 0; border: none; outline: none; background: transparent; font-size: 13px; color: var(--ink); height: 32px; }
#chatInput::placeholder { color: var(--muted); }

.send-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: #FFF8EE; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all 0.15s; }
.send-btn:active { background: var(--primary-deep); transform: scale(0.94); }

.voice-row { display: flex; justify-content: flex-end; margin-top: 5px; }
.voice-toggle { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; user-select: none; }
.voice-toggle input { display: none; }
.voice-toggle-ui { width: 28px; height: 15px; border-radius: 999px; background: #D6CFC0; position: relative; transition: background 0.2s; }
.voice-toggle-ui::after { content: ""; position: absolute; left: 2px; top: 2px; width: 11px; height: 11px; border-radius: 50%; background: #FFF; transition: transform 0.2s; box-shadow: 0 1px 2px rgba(0,0,0,0.15); }
.voice-toggle input:checked + .voice-toggle-ui { background: var(--primary); }
.voice-toggle input:checked + .voice-toggle-ui::after { transform: translateX(13px); }
.voice-toggle-label { font-size: 10.5px; color: var(--muted); }

/* ---------- Heritage Cards ---------- */
.heritage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.h-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 10px;
  box-shadow: var(--shadow);
  text-align: left;
  width: 100%;
  position: relative;
  overflow: hidden;
  transition: transform 0.15s;
}
.h-card::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--card-accent, var(--primary)); }
.h-card:active { transform: scale(0.97); }

.h-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 6px; font-size: 17px; background: var(--card-bg, var(--primary-soft)); }
.h-name { font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 2px; }
.h-tag { font-size: 10px; color: var(--muted); }

/* ---------- 3D ---------- */
.c3d-list { display: flex; gap: 5px; margin-bottom: 8px; overflow-x: auto; padding-bottom: 3px; }
.c3d-item { flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 1px; padding: 7px 10px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); min-width: 64px; transition: all 0.15s; }
.c3d-item.active { border-color: var(--primary); background: var(--primary-faint); box-shadow: 0 0 0 2px rgba(47,93,80,0.08); }
.c3d-item-icon { font-size: 18px; }
.c3d-item-name { font-size: 11px; font-weight: 600; color: var(--ink); }
.c3d-item-sub { font-size: 9px; color: var(--muted); }

.c3d-viewport { width: 100%; height: 260px; background: linear-gradient(180deg, #EDE8DC 0%, #E0D8C8 100%); border-radius: var(--radius-lg); border: 1px solid var(--line); overflow: hidden; position: relative; margin-bottom: 8px; touch-action: none; overscroll-behavior: contain; user-select: none; }
.c3d-viewport canvas { display: block; width: 100% !important; height: 100% !important; cursor: grab; touch-action: none; }
.c3d-viewport canvas:active { cursor: grabbing; }
.c3d-loading { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 12px; }
.c3d-error { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #B5432A; font-size: 12px; padding: 16px; text-align: center; }

.c3d-info { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; }
.c3d-info-name { font-size: 13px; font-weight: 700; color: var(--primary-deep); margin-bottom: 3px; }
.c3d-info-desc { font-size: 12px; color: var(--ink-soft); line-height: 1.6; }
.c3d-hint { text-align: center; font-size: 10px; color: var(--muted); margin-top: 5px; }

/* ---------- 文化典藏 ---------- */
.dc-toolbar { display: flex; gap: 6px; margin-bottom: 8px; }
.dc-tool-btn { flex: 1; padding: 7px; border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; border: 1px solid rgba(47,93,80,0.2); background: var(--card); color: var(--primary-deep); }
.dc-tool-btn:active { background: var(--primary-soft); }

.dc-tabs { display: flex; gap: 4px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 8px; }
.dc-tab { flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 1px; padding: 5px 8px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); min-width: 58px; }
.dc-tab.active { border-color: var(--primary); background: var(--primary-faint); }
.dc-tab-num { font-size: 13px; font-weight: 700; color: var(--accent); }
.dc-tab-title { font-size: 10px; font-weight: 600; color: var(--ink); white-space: nowrap; }
.dc-tab-count { font-size: 9px; color: var(--muted); }

.dc-chapter-header { display: flex; gap: 10px; align-items: flex-start; background: linear-gradient(135deg, var(--primary-soft), var(--card)); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 10px 12px; margin-bottom: 8px; }
.dc-chapter-num { font-size: 22px; font-weight: 700; color: var(--accent); font-family: "KaiTi", serif; flex-shrink: 0; min-width: 28px; text-align: center; line-height: 1; }
.dc-chapter-info { flex: 1; min-width: 0; }
.dc-chapter-name { font-size: 13px; font-weight: 700; color: var(--primary-deep); margin-bottom: 3px; }
.dc-chapter-intro { font-size: 11px; color: var(--ink-soft); line-height: 1.55; }

.dc-items-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

.dc-item-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 8px; text-align: left; transition: all 0.15s; }
.dc-item-card:active { transform: scale(0.97); background: var(--primary-faint); }

.dc-item-thumb { width: 100%; height: 70px; object-fit: cover; object-position: top; border-radius: 5px; margin-bottom: 5px; background: var(--paper-deep); border: 1px solid var(--line); }

.dc-item-name { font-size: 12px; font-weight: 700; color: var(--ink); margin-bottom: 1px; }
.dc-item-ipa { font-size: 9.5px; color: var(--primary); margin-bottom: 2px; font-style: italic; }
.dc-item-preview { font-size: 10px; color: var(--muted); line-height: 1.4; margin-bottom: 3px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.dc-item-more { font-size: 10px; color: var(--primary); font-weight: 600; }

/* 详情弹层 */
.modal-mask { position: fixed; inset: 0; z-index: 200; background: rgba(20, 28, 25, 0.55); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; padding: 10px; animation: fadeIn 0.2s ease; }
.modal-mask[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-card { background: var(--paper); border-radius: var(--radius-lg); width: 100%; max-width: 480px; max-height: 88vh; max-height: 88dvh; overflow-y: auto; box-shadow: var(--shadow-lg); animation: popIn 0.2s ease; padding: 22px 16px 16px; position: relative; }
@keyframes popIn { from { opacity: 0; transform: scale(0.95) translateY(6px); } to { opacity: 1; transform: scale(1) translateY(0); } }

.modal-close { position: absolute; right: 8px; top: 6px; width: 30px; height: 30px; font-size: 18px; color: var(--muted); border-radius: 50%; display: flex; align-items: center; justify-content: center; }

.dc-detail-name { font-size: 17px; font-weight: 700; color: var(--primary-deep); margin-bottom: 2px; }
.dc-detail-ipa { font-size: 12px; color: var(--primary); font-style: italic; margin-bottom: 8px; }
.dc-detail-img { width: 100%; border-radius: var(--radius-sm); margin-bottom: 10px; border: 1px solid var(--line); }
.dc-detail-desc { font-size: 13px; color: var(--ink-soft); line-height: 1.8; margin-bottom: 12px; }
.dc-detail-desc p { margin-bottom: 6px; }

/* 视频播放卡片 */
.dc-detail-video {
  background: var(--primary-faint);
  border: 1px solid rgba(47,93,80,0.12);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 12px;
  text-align: center;
}
.dc-detail-video-icon { font-size: 28px; margin-bottom: 4px; }
.dc-detail-video-title { font-size: 13px; font-weight: 700; color: var(--primary-deep); margin-bottom: 3px; }
.dc-detail-video-desc { font-size: 11px; color: var(--muted); line-height: 1.45; margin-bottom: 8px; }

.dc-video-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 18px;
  background: var(--primary);
  color: #FFF8EE;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  transition: background 0.15s;
}
.dc-video-play-btn:active { background: var(--primary-deep); }

.dc-detail-ask {
  width: 100%;
  padding: 10px;
  background: var(--primary);
  color: #FFF8EE;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.15s;
}
.dc-detail-ask:active { background: var(--primary-deep); }

/* 科普详情里的「问问阿蓝」此前没有任何规则，浏览器按纯文本渲染，完全不像按钮 */
.ask-more-btn {
  display: block;
  width: 100%;
  margin-top: 14px;
  padding: 11px 14px;
  background: var(--accent);
  color: #FFF8EE;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background 0.15s, transform 0.1s;
}
.ask-more-btn::before { content: "💬 "; }
.ask-more-btn:hover { background: #A94B1D; }
.ask-more-btn:active { background: #8E3E17; transform: translateY(1px); }

.dc-detail-meta { font-size: 10px; color: var(--muted); text-align: center; margin-top: 6px; }
.dc-detail-cite { font-size: 10px; color: var(--muted); text-align: center; margin: -2px 0 8px; }

/* 视频播放器弹层 */
.video-player-modal .modal-card { max-width: 400px; padding: 14px; }
.video-player-frame { width: 100%; aspect-ratio: 16/9; background: #1a1a1a; border-radius: var(--radius-sm); margin-bottom: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 12px; overflow: hidden; }
.video-player-frame iframe { width: 100%; height: 100%; border: none; }
.video-player-title { font-size: 14px; font-weight: 700; color: var(--primary-deep); margin-bottom: 4px; }
.video-player-desc { font-size: 11px; color: var(--ink-soft); }

/* ---------- Modal general ---------- */
.modal-title { font-size: 15px; font-weight: 700; color: var(--primary-deep); margin-bottom: 6px; text-align: center; }
.modal-desc { font-size: 11px; color: var(--muted); margin-bottom: 8px; word-break: break-all; text-align: center; }
/* ---------- 访问地址面板 ---------- */
.addr-qr {
  width: 176px; height: 176px;
  margin: 2px auto 10px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.addr-qr canvas, .addr-qr img { display: block; max-width: 100%; height: auto; }
.addr-row {
  display: flex; align-items: center; gap: 8px;
  margin: 4px 0 6px; padding: 10px;
  background: var(--primary-faint);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.addr-link {
  flex: 1; min-width: 0;
  font-size: 12px; font-weight: 600; color: var(--primary-deep);
  word-break: break-all; line-height: 1.5; text-decoration: underline;
}
.addr-copy {
  flex-shrink: 0; height: 30px; padding: 0 12px;
  background: var(--primary); color: #FFF8EE;
  border-radius: 999px; font-size: 12px; font-weight: 600; cursor: pointer;
}
.addr-copy:active { background: var(--primary-deep); }
.addr-empty { font-size: 11px; color: var(--muted); line-height: 1.55; }

.addr-url-row { margin-top: 10px; text-align: left; }
.addr-url-label { display: block; font-size: 11px; font-weight: 600; color: var(--ink-soft); margin-bottom: 3px; }
.addr-url-form { display: flex; gap: 5px; }
.addr-url-form input { flex: 1; min-width: 0; height: 32px; border: 1px solid rgba(47,93,80,0.25); border-radius: 6px; padding: 0 8px; font-size: 12px; color: var(--ink); background: var(--card); outline: none; }
.addr-url-form input:focus { border-color: var(--primary); }
.addr-url-form button { flex-shrink: 0; height: 32px; padding: 0 10px; background: var(--primary); color: #FFF8EE; border-radius: 6px; font-size: 12px; font-weight: 600; }
.addr-url-hint { font-size: 10px; color: var(--muted); margin-top: 3px; line-height: 1.4; }
.addr-url-hint.is-public { color: var(--primary); font-weight: 600; }

.addr-links-head {
  margin-top: 14px; padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12px; font-weight: 700; color: var(--primary-deep); text-align: left;
}
.addr-links-sub { font-size: 10px; color: var(--muted); line-height: 1.5; margin: 3px 0 6px; text-align: left; }
.addr-links {
  list-style: none; max-height: 210px; overflow-y: auto;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card);
}
.addr-item {
  display: grid; grid-template-columns: 52px 1fr auto; align-items: center; gap: 6px;
  padding: 7px 9px; border-bottom: 1px solid var(--line);
}
.addr-item:last-child { border-bottom: none; }
.addr-item-page { font-size: 10px; color: var(--muted); }
.addr-item-name { font-size: 12px; color: var(--ink); font-weight: 600; }
.addr-item-link { font-size: 11px; color: var(--accent); font-weight: 600; white-space: nowrap; }
.modal-hint { font-size: 10.5px; color: var(--muted); background: var(--paper-deep); border-radius: 6px; padding: 6px 8px; line-height: 1.4; text-align: center; }

/* ---------- Footer ---------- */
.footer { margin-top: 20px; padding: 14px 8px 6px; text-align: center; border-top: 1px dashed rgba(47,93,80,0.15); }
.footer-brand { font-family: "KaiTi", serif; font-size: 13px; font-weight: 700; color: var(--primary-deep); letter-spacing: 2px; margin-bottom: 4px; }
.footer-meta { font-size: 10px; color: var(--muted); line-height: 1.6; }
.footer-ai-note {
  max-width: 420px;
  margin: 8px auto 0;
  font-size: 10px;
  line-height: 1.6;
  color: var(--muted);
  padding: 6px 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.admin-entry { display: block; margin: 8px auto 0; font-size: 10px; color: var(--muted); background: none; border: 1px dashed rgba(47,93,80,0.2); border-radius: 999px; padding: 3px 10px; letter-spacing: 0.5px; }
.admin-entry:active { background: var(--primary-faint); color: var(--primary); }

/* ---------- Admin (compact) ---------- */
.admin-mask { position: fixed; inset: 0; z-index: 300; background: rgba(20,28,25,0.6); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; padding: 8px; }
.admin-mask[hidden] { display: none; }
.admin-panel { background: var(--paper); border-radius: var(--radius-lg); width: 100%; max-width: 480px; max-height: 90vh; display: flex; flex-direction: column; overflow: hidden; box-shadow: var(--shadow-lg); }
.admin-login { padding: 32px 20px 20px; text-align: center; }
.admin-login-icon { font-size: 28px; margin-bottom: 6px; }
.admin-login-title { font-size: 15px; font-weight: 700; color: var(--primary-deep); margin-bottom: 14px; }
.admin-login input { width: 100%; height: 38px; border: 1.5px solid rgba(47,93,80,0.25); border-radius: var(--radius-sm); padding: 0 12px; font-size: 14px; text-align: center; outline: none; background: var(--card); }
.admin-login input:focus { border-color: var(--primary); }
.admin-login-error { height: 16px; font-size: 11px; color: #B5432A; margin-top: 3px; }
.admin-login-btn { width: 100%; height: 38px; background: var(--primary); color: #FFF8EE; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; margin-top: 4px; }
.admin-login-cancel { margin-top: 8px; font-size: 11px; color: var(--muted); background: none; }
.admin-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: var(--primary-deep); color: #FFF8EE; flex-shrink: 0; }
.admin-header-title { font-size: 13px; font-weight: 700; letter-spacing: 0.5px; }
.admin-close-btn { color: rgba(255,248,238,0.8); font-size: 13px; padding: 2px 8px; border-radius: 6px; background: rgba(255,248,238,0.1); }
.admin-tabs { display: flex; border-bottom: 1px solid var(--line); background: var(--card); flex-shrink: 0; }
.admin-tab { flex: 1; padding: 8px 4px; font-size: 12px; color: var(--muted); border-bottom: 2px solid transparent; transition: all 0.15s; }
.admin-tab.active { color: var(--primary-deep); border-bottom-color: var(--primary); font-weight: 600; }
.admin-body { flex: 1; overflow-y: auto; padding: 10px; }
.admin-form-title { font-size: 12px; font-weight: 700; color: var(--primary-deep); margin-bottom: 6px; }
.admin-label { display: block; font-size: 11px; font-weight: 600; color: var(--ink-soft); margin: 6px 0 2px; }
.admin-input, .admin-textarea { width: 100%; border: 1px solid rgba(47,93,80,0.2); border-radius: 6px; padding: 6px 8px; font-size: 12px; color: var(--ink); background: var(--card); outline: none; }
.admin-input:focus, .admin-textarea:focus { border-color: var(--primary); }
.admin-textarea { resize: vertical; line-height: 1.5; font-family: inherit; }
.admin-hint { font-size: 10px; color: var(--muted); line-height: 1.4; margin-top: 3px; }
.admin-row { display: flex; gap: 6px; }
.admin-col { flex: 1; }
.admin-btn { display: inline-flex; align-items: center; justify-content: center; padding: 6px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; border: 1px solid rgba(47,93,80,0.2); background: var(--card); color: var(--ink-soft); }
.admin-btn-primary { background: var(--primary); color: #FFF8EE; border-color: var(--primary); }
.admin-btn-danger { background: #FDF0EC; color: #B5432A; border-color: rgba(181,67,42,0.25); }
.admin-badge { font-size: 9px; padding: 1px 5px; border-radius: 999px; font-weight: 600; }
.admin-badge-default { background: var(--primary-soft); color: var(--primary); }
.admin-badge-custom { background: var(--accent-soft); color: var(--accent); }
.admin-kb-toolbar { display: flex; gap: 5px; margin-bottom: 5px; }
.admin-search { flex: 1; height: 32px; border: 1px solid rgba(47,93,80,0.2); border-radius: 6px; padding: 0 8px; font-size: 12px; outline: none; background: var(--card); }
.admin-kb-stats { font-size: 10px; color: var(--muted); margin-bottom: 6px; }
.admin-kb-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px; margin-bottom: 5px; }
.admin-kb-item-head { display: flex; align-items: center; gap: 5px; margin-bottom: 2px; }
.admin-kb-item-title { font-size: 12px; font-weight: 700; color: var(--ink); }
.admin-kb-item-keywords { font-size: 10px; color: var(--primary); margin-bottom: 2px; }
.admin-kb-item-preview { font-size: 10.5px; color: var(--muted); line-height: 1.4; margin-bottom: 4px; }
.admin-kb-item-actions { display: flex; gap: 4px; }
.admin-btn-sm { font-size: 10.5px; padding: 2px 8px; border-radius: 4px; border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft); }
.admin-btn-del { color: #B5432A; border-color: rgba(181,67,42,0.2); }
.admin-kb-form { background: var(--card); border: 1.5px solid var(--primary); border-radius: var(--radius-sm); padding: 10px; margin-bottom: 8px; }
.admin-form-actions { display: flex; gap: 5px; margin-top: 8px; }
.admin-empty { text-align: center; color: var(--muted); padding: 20px 8px; font-size: 12px; }
.admin-api-section { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px; margin-bottom: 8px; }
.admin-mode-toggle { display: flex; gap: 5px; }
.admin-mode-btn { flex: 1; padding: 7px 4px; border-radius: 6px; font-size: 12px; border: 1px solid rgba(47,93,80,0.2); background: var(--paper); color: var(--ink-soft); }
.admin-mode-btn.active { background: var(--primary); color: #FFF8EE; border-color: var(--primary); font-weight: 600; }

/* ---------- Typing ---------- */
.typing-cursor { display: inline-block; width: 2px; height: 0.9em; background: var(--primary); margin-left: 1px; vertical-align: -1px; animation: blink 0.7s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.thinking-dots { display: inline-flex; gap: 3px; align-items: center; padding: 2px 0; }
.thinking-dots span { width: 5px; height: 5px; border-radius: 50%; background: var(--primary); opacity: 0.35; animation: dotBounce 1s ease-in-out infinite; }
.thinking-dots span:nth-child(2) { animation-delay: 0.15s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes dotBounce { 0%, 80%, 100% { transform: translateY(0); opacity: 0.3; } 40% { transform: translateY(-3px); opacity: 1; } }

/* ---------- 客家方言语音库 ---------- */
.dl-head { margin-bottom: 12px; }
.dl-title { font-family: "KaiTi", serif; font-size: 18px; font-weight: 700; color: var(--primary-deep); letter-spacing: 1px; }
.dl-sub { font-size: 11px; color: var(--ink-soft); line-height: 1.7; margin-top: 4px; }
.dl-sub strong { color: var(--accent); }

.dl-now {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary-soft), var(--card));
  border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.dl-now-idx {
  flex-shrink: 0; width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary); color: #FFF8EE;
  border-radius: 8px; font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums;
}
.dl-now-body { min-width: 0; }
.dl-now-name { font-size: 14px; font-weight: 700; color: var(--ink); }
.dl-now-meta { font-size: 10px; color: var(--muted); margin-top: 2px; }

.dl-frame { margin-bottom: 10px; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: #000; }
.dl-frame iframe { display: block; width: 100%; height: 200px; border: 0; }
.dl-open { display: block; padding: 7px 10px; font-size: 11px; color: var(--accent); background: var(--card); font-weight: 600; }

.dl-tracks { list-style: none; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); overflow: hidden; }
.dl-tracks > li + li .dl-track { border-top: 1px solid var(--line); }
.dl-track {
  display: grid; grid-template-columns: 30px 1fr 20px; align-items: center; gap: 9px;
  width: 100%; padding: 9px 11px; text-align: left;
  background: transparent; color: inherit; font-family: inherit; cursor: pointer;
  transition: background 0.15s;
}
.dl-track:hover { background: var(--primary-faint); }
.dl-track.is-active { background: var(--primary-soft); }
.dl-track.is-active .dl-track-name { color: var(--primary-deep); }
.dl-track-no { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.dl-track-main { min-width: 0; display: flex; flex-direction: column; }
.dl-track-name { font-size: 13px; font-weight: 600; color: var(--ink); }
.dl-track-sub { font-size: 10px; color: var(--muted); margin-top: 1px; }
.dl-track-play { font-size: 11px; color: var(--accent); text-align: right; }
.dl-empty { padding: 14px; font-size: 12px; color: var(--muted); text-align: center; }
.dl-note { font-size: 10px; color: var(--muted); line-height: 1.6; margin-top: 8px; }

/* ---------- Desktop ---------- */
@media (min-width: 600px) {
  body { padding: 20px 12px; }
  .app { border-radius: var(--radius-lg); overflow: hidden; max-height: calc(100vh - 40px); max-height: calc(100dvh - 40px); border: 1px solid var(--line); }
  .main { overflow-y: auto; }
  .chat-window { max-height: 260px; }
  .c3d-viewport { height: 240px; }
  .admin-panel { max-height: 80vh; }
}

@media (prefers-reduced-motion: reduce) {
  .msg, .tab-panel.active, .modal-mask, .modal-card { animation: none; }
  .typing-cursor, .thinking-dots span { animation: none; }
  .avatar-stage, .avatar-blink, .avatar-mouth,
  .avatar-wrap.is-talking .avatar-stage, .avatar-wrap.is-thinking .avatar-stage,
  .avatar-wrap.is-talking .avatar-mouth,
  .avatar-wrap.is-talking .avatar-ring, .avatar-wrap.is-thinking .avatar-ring { animation: none; }
}