/* EchoMe — 简洁清新 */
:root {
  --bg: #F6FBF9;
  --bg-2: #EAF5FB;
  --ink: #1F2933;
  --muted: #6B7C8C;
  --line: #E1ECE8;
  --card: #FFFFFF;
  --accent: #3DBE9B;
  --accent-ink: #0E7A60;
  --accent-soft: #E3F6EF;
  --sky: #5BB5F0;
  --coral: #FF8A5B;
  --radius: 18px;
  --shadow: 0 8px 30px rgba(31, 41, 51, .07);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%) fixed;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 880px; margin: 0 auto; padding: 18px 20px;
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: .3px; color: var(--accent-ink); }
.topbar nav { display: flex; gap: 6px; align-items: center; }
.topbar nav a { padding: 6px 12px; border-radius: 999px; color: var(--muted); font-size: 15px; }
.topbar nav a:hover { background: rgba(61, 190, 155, .12); color: var(--accent-ink); }
.topbar .lang-switch { border: 1px solid var(--line); background: var(--card); }

/* ---------- 首页 ---------- */
.home { max-width: 640px; margin: 0 auto; padding: 0 20px 40px; }
.stage { text-align: center; }
.avatar { width: min(100%, 400px); height: auto; display: block; margin: 0 auto; overflow: visible; }

.status {
  display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 4px 6px; align-items: center;
  margin-top: 6px; padding: 8px 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px;
  font-size: 14px; color: var(--ink); box-shadow: var(--shadow);
}
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 2s ease-in-out infinite; }
.status-post { color: var(--accent-ink); }
.status-post:hover { text-decoration: underline; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.8); } }

/* ---------- 对话 ---------- */
.chat {
  margin-top: 20px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px;
}
.about-chip {
  display: inline-block; margin: 0 0 8px; padding: 4px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-ink); font-size: 13px;
}
.messages { list-style: none; margin: 0; padding: 4px 2px; max-height: 40vh; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.messages:empty { display: none; }
.msg { max-width: 88%; padding: 10px 14px; border-radius: 16px; font-size: 15px; word-break: break-word; }
.msg.bot { align-self: flex-start; background: var(--accent-soft); border-bottom-left-radius: 5px; }
.msg.me { align-self: flex-end; background: var(--ink); color: #fff; border-bottom-right-radius: 5px; }
.msg.err { background: #FFF1EB; color: #A8431C; }
.msg code { background: rgba(31, 41, 51, .08); padding: 1px 5px; border-radius: 5px; font-size: .92em; }
.typing::after { content: "▍"; animation: blink 1s steps(2) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }

.cards { align-self: stretch; display: flex; flex-direction: column; gap: 8px; }
.cards-title { font-size: 12px; color: var(--muted); margin: 2px 4px 0; }
.card {
  display: block; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px;
  background: #fff; transition: transform .15s, box-shadow .15s, border-color .15s;
}
.card:hover { transform: translateY(-1px); box-shadow: var(--shadow); border-color: var(--accent); }
.card h3 { margin: 0 0 2px; font-size: 15px; }
.card p { margin: 0; font-size: 13px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { margin-top: 6px; }

.suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 2px; }
.suggestions button {
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  padding: 6px 12px; border-radius: 999px; font-size: 13px;
}
.suggestions button:hover { border-color: var(--accent); color: var(--accent-ink); }

.composer { display: flex; gap: 8px; margin-top: 10px; }
.composer input {
  flex: 1; min-width: 0; padding: 12px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg); font: inherit; color: var(--ink); outline: none;
}
.composer input:focus { border-color: var(--accent); background: #fff; }
.composer button {
  padding: 0 20px; border: 0; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 600;
}
.composer button:disabled { opacity: .55; cursor: default; }

/* ---------- 文章列表 / 详情 ---------- */
.wrap { max-width: 880px; margin: 0 auto; padding: 8px 20px 60px; }
.wrap.narrow { max-width: 720px; }
.page-title { font-size: 28px; margin: 8px 0 14px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tag { padding: 5px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); font-size: 14px; color: var(--muted); }
.tag.on, .tag:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.post-item {
  display: block; padding: 18px 20px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); transition: transform .15s, box-shadow .15s;
}
.post-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.post-item h2 { margin: 0 0 6px; font-size: 19px; }
.post-item p { margin: 0; color: var(--muted); font-size: 15px; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; margin-top: 10px; font-size: 13px; color: var(--muted); }
.chip { padding: 1px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink); font-size: 12px; }
.chip.warm { background: #FFEDE3; color: #B4501F; }
.empty { color: var(--muted); padding: 40px 0; text-align: center; }

.back { display: inline-block; margin: 4px 0 14px; color: var(--muted); font-size: 14px; }
.back:hover { color: var(--accent-ink); }
.article-head h1 { font-size: 30px; line-height: 1.3; margin: 0; }
.prose { margin-top: 22px; font-size: 17px; line-height: 1.85; }
.prose h2 { font-size: 22px; margin: 1.8em 0 .6em; }
.prose h3 { font-size: 18px; margin: 1.5em 0 .5em; }
.prose p { margin: 0 0 1.1em; }
.prose a { color: var(--accent-ink); border-bottom: 1px solid rgba(61, 190, 155, .5); }
.prose blockquote { margin: 1.2em 0; padding: 4px 16px; border-left: 4px solid var(--accent); color: var(--muted); background: var(--accent-soft); border-radius: 0 10px 10px 0; }
.prose code { background: rgba(31, 41, 51, .07); padding: 2px 6px; border-radius: 6px; font-size: .9em; }
.prose pre { background: #1E2538; color: #E8EEF5; padding: 16px 18px; border-radius: 14px; overflow-x: auto; line-height: 1.6; }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose table { border-collapse: collapse; width: 100%; margin: 1em 0; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.prose th { background: var(--accent-soft); }
.prose ul, .prose ol { padding-left: 1.4em; }
.article-foot { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.ask { background: var(--accent); color: #fff; padding: 10px 18px; border-radius: 999px; font-weight: 600; }
.ask:hover { background: var(--accent-ink); }

/* ---------- 人物：状态与动作 ---------- */
.avatar [data-only] { display: none; }
.avatar[data-state="idle"] [data-only="idle"],
.avatar[data-state="tennis"] [data-only="tennis"],
.avatar[data-state="running"] [data-only="running"],
.avatar[data-state="coding"] [data-only="coding"],
.avatar[data-state="reading"] [data-only="reading"],
.avatar[data-state="sleeping"] [data-only="sleeping"] { display: inline; }

.avatar .eyes-closed, .avatar .m-open-wrap, .avatar .think-dots { display: none; }
.avatar[data-state="sleeping"] .eyes { display: none; }
.avatar[data-state="sleeping"] .eyes-closed { display: inline; }

/* 通用关节默认姿态 */
.avatar .arm-l { transform: rotate(7deg); }
.avatar .arm-r { transform: rotate(-7deg); }
.avatar .forearm-l { transform: rotate(-6deg); }
.avatar .forearm-r { transform: rotate(6deg); }

/* 通用：呼吸与眨眼 */
.avatar .upper { animation: breathe 3.2s ease-in-out infinite; }
.avatar .eyes { animation: blink-eyes 4.6s infinite; }
@keyframes breathe { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
@keyframes blink-eyes { 0%, 93%, 100% { transform: scaleY(1); } 96% { transform: scaleY(.08); } }

/* 待机：手臂轻晃 */
.avatar[data-state="idle"] .arm-l { animation: sway-l 5s ease-in-out infinite; }
.avatar[data-state="idle"] .arm-r { animation: sway-r 5s ease-in-out infinite; }
@keyframes sway-l { 0%, 100% { transform: rotate(7deg); } 50% { transform: rotate(12deg); } }
@keyframes sway-r { 0%, 100% { transform: rotate(-7deg); } 50% { transform: rotate(-12deg); } }

/* 跑步 */
.avatar[data-state="running"] .upper { animation: run-bob .36s ease-in-out infinite; }
.avatar[data-state="running"] .leg-l { animation: stride .72s ease-in-out infinite; }
.avatar[data-state="running"] .leg-r { animation: stride .72s ease-in-out infinite -.36s; }
.avatar[data-state="running"] .arm-l { animation: swing .72s ease-in-out infinite -.36s; }
.avatar[data-state="running"] .arm-r { animation: swing-r .72s ease-in-out infinite -.36s; }
.avatar[data-state="running"] .forearm-l { transform: rotate(-26deg); }
.avatar[data-state="running"] .forearm-r { transform: rotate(26deg); }
.avatar[data-state="running"] .shadow { animation: shadow-run .36s ease-in-out infinite; transform-origin: 240px 402px; }
.avatar .track { animation: track .5s linear infinite; }
.avatar .speed { animation: speed .5s linear infinite; }
.avatar .cloud.c1 { animation: drift 9s linear infinite; }
.avatar .cloud.c2 { animation: drift 14s linear infinite -6s; }
.avatar .sweat { animation: sweat 1s ease-in infinite; }
@keyframes run-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes stride { 0%, 100% { transform: rotate(34deg); } 50% { transform: rotate(-34deg); } }
@keyframes swing { 0%, 100% { transform: rotate(34deg); } 50% { transform: rotate(-8deg); } }
@keyframes swing-r { 0%, 100% { transform: rotate(-34deg); } 50% { transform: rotate(8deg); } }
@keyframes shadow-run { 0%, 100% { transform: scale(1); } 50% { transform: scale(.82); } }
@keyframes track { to { stroke-dashoffset: 54; } }
@keyframes speed { 0% { opacity: .9; transform: translateX(0); } 100% { opacity: 0; transform: translateX(-26px); } }
@keyframes drift { 0% { transform: translateX(60px); } 100% { transform: translateX(-160px); } }
@keyframes sweat { 0% { opacity: 0; transform: translate(0, -6px); } 30% { opacity: 1; } 100% { opacity: 0; transform: translate(4px, 30px); } }

/* 打网球 */
.avatar[data-state="tennis"] .upper { animation: tennis-body 1.6s ease-in-out infinite; }
.avatar[data-state="tennis"] .arm-r { animation: swing-arm 1.6s ease-in-out infinite; }
.avatar[data-state="tennis"] .forearm-r { animation: swing-fore 1.6s ease-in-out infinite; }
.avatar[data-state="tennis"] .arm-l { animation: balance-arm 1.6s ease-in-out infinite; }
.avatar[data-state="tennis"] .forearm-l { transform: rotate(10deg); }
.avatar[data-state="tennis"] .leg-l { transform: rotate(5deg); }
.avatar[data-state="tennis"] .leg-r { transform: rotate(-5deg); }
.avatar .ball { animation: ball 1.6s cubic-bezier(.35, 0, .65, 1) infinite; }
@keyframes tennis-body { 0%, 100% { transform: translateY(0) rotate(0); } 45% { transform: translateY(-2px) rotate(3deg); } 60% { transform: translateY(0) rotate(-2deg); } }
@keyframes swing-arm { 0%, 100% { transform: rotate(-38deg); } 28% { transform: rotate(-62deg); } 46% { transform: rotate(-18deg); } 58% { transform: rotate(-8deg); } }
@keyframes swing-fore { 0%, 100% { transform: rotate(-125deg); } 28% { transform: rotate(-155deg); } 46% { transform: rotate(-30deg); } 58% { transform: rotate(12deg); } }
@keyframes balance-arm { 0%, 100% { transform: rotate(38deg); } 46% { transform: rotate(12deg); } }
@keyframes ball { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-22px, -86px); } }

/* 写代码 */
.avatar[data-state="coding"] .arm-l { transform: rotate(10deg); }
.avatar[data-state="coding"] .arm-r { transform: rotate(-10deg); }
.avatar[data-state="coding"] .forearm-l { animation: type-l .32s ease-in-out infinite; }
.avatar[data-state="coding"] .forearm-r { animation: type-r .32s ease-in-out infinite -.16s; }
.avatar[data-state="coding"] .head { transform: rotate(5deg); }
.avatar .code { animation: code-scroll 7s linear infinite; }
.avatar .cursor { animation: blink 1s steps(2) infinite; }
.avatar .steam { animation: steam 2.4s ease-in-out infinite; }
.avatar .steam.st2 { animation-delay: -1.2s; }
@keyframes type-l { 0%, 100% { transform: rotate(-39deg); } 50% { transform: rotate(-32deg); } }
@keyframes type-r { 0%, 100% { transform: rotate(39deg); } 50% { transform: rotate(32deg); } }
@keyframes code-scroll { from { transform: translateY(0); } to { transform: translateY(-50px); } }
@keyframes steam { 0% { opacity: 0; transform: translateY(4px); } 50% { opacity: .9; } 100% { opacity: 0; transform: translateY(-8px); } }

/* 读书 */
.avatar[data-state="reading"] .arm-l { transform: rotate(22deg); }
.avatar[data-state="reading"] .arm-r { transform: rotate(-22deg); }
.avatar[data-state="reading"] .forearm-l { transform: rotate(-92deg); }
.avatar[data-state="reading"] .forearm-r { transform: rotate(92deg); }
.avatar[data-state="reading"] .eyes { transform: translateY(3px); animation: none; }
.avatar[data-state="reading"] .head { transform: rotate(-3deg); }

/* 睡觉 */
.avatar[data-state="sleeping"] .head { transform: rotate(9deg); }
.avatar[data-state="sleeping"] .upper { animation: breathe 4.4s ease-in-out infinite; }
.avatar .z { animation: zzz 3s ease-in-out infinite; opacity: 0; }
.avatar .z2 { animation-delay: 1s; }
.avatar .z3 { animation-delay: 2s; }
.avatar .star { animation: twinkle 2.6s ease-in-out infinite; }
.avatar .star.s2 { animation-delay: .8s; }
.avatar .star.s3 { animation-delay: 1.6s; }
@keyframes zzz { 0% { opacity: 0; transform: translate(0, 10px); } 30% { opacity: 1; } 100% { opacity: 0; transform: translate(10px, -16px); } }
@keyframes twinkle { 0%, 100% { opacity: .4; } 50% { opacity: 1; } }

/* 情绪（叠加在状态之上）：欢迎 / 思考 / 说话 */
.avatar[data-mood="greet"] .arm-r { animation: none; transform: rotate(-150deg); }
.avatar[data-mood="greet"] .forearm-r { animation: wave .55s ease-in-out infinite; }
.avatar[data-mood="greet"] .head { transform: rotate(-4deg); }
@keyframes wave { 0%, 100% { transform: rotate(-12deg); } 50% { transform: rotate(26deg); } }

.avatar[data-mood="think"] .head { transform: rotate(-7deg); }
.avatar[data-mood="think"] .eyes { transform: translate(4px, -3px); animation: none; }
.avatar[data-mood="think"] .think-dots { display: inline; }
.avatar[data-mood="think"] .think-dots circle { animation: dots 1.2s ease-in-out infinite; }
.avatar[data-mood="think"] .think-dots circle:nth-child(2) { animation-delay: .2s; }
.avatar[data-mood="think"] .think-dots circle:nth-child(3) { animation-delay: .4s; }
@keyframes dots { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

.avatar[data-mood="talk"] .m-smile { display: none; }
.avatar[data-mood="talk"] .m-open-wrap { display: inline; }
.avatar[data-mood="talk"] .m-open { animation: talk .3s ease-in-out infinite; transform-origin: 0 3px; }
@keyframes talk { 0%, 100% { transform: scaleY(.25); } 50% { transform: scaleY(1); } }

@media (prefers-reduced-motion: reduce) {
  .avatar *, .status .dot { animation: none !important; }
}
@media (max-width: 480px) {
  .article-head h1 { font-size: 24px; }
  .msg { max-width: 94%; }
}


/* =====================================================================
   v3：别墅与房间（Peppa 风格：扁平色块 + 细描边）
   ===================================================================== */
:root { --ol: #4A3B3B; }

/* 多 token 的 data-only（如 "idle sleeping"） */
.avatar[data-state="idle"] [data-only~="idle"],
.avatar[data-state="coding"] [data-only~="coding"],
.avatar[data-state="tennis"] [data-only~="tennis"],
.avatar[data-state="running"] [data-only~="running"],
.avatar[data-state="reading"] [data-only~="reading"],
.avatar[data-state="sleeping"] [data-only~="sleeping"] { display: inline; }

/* 统一描边：有填充、不透明度为默认的主体形状加深棕色细描边 */
.avatar :is(rect, ellipse, circle, path, polygon)[fill]:not([fill="none"]):not([opacity]),
.villa :is(rect, ellipse, circle, path, polygon)[fill]:not([fill="none"]):not([opacity]) {
  stroke: var(--ol); stroke-width: 2.2px; stroke-linejoin: round; stroke-linecap: round;
}
.avatar .eyes :is(rect, ellipse, circle, path),
.avatar .eyes-closed :is(rect, ellipse, circle, path),
.avatar .code :is(rect, ellipse, circle, path),
.avatar .cursor, .avatar .shadow, .avatar .think-dots circle, .avatar .sweat path,
.avatar [fill="#FF9E8E"] { stroke: none !important; }

/* 舞台：同一块区域叠放"别墅全景"和"房间"，通过 data-view 切换 */
.stage-box {
  position: relative; width: min(100%, 440px); aspect-ratio: 480 / 520; margin: 0 auto;
  border-radius: 28px; overflow: hidden; background: #BFE8FF;
  box-shadow: 0 10px 34px rgba(74, 59, 59, .16); border: 3px solid var(--ol);
}
.stage-box > svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; margin: 0; border-radius: 0; }
.stage-box .villa { transition: transform .8s cubic-bezier(.6, 0, .2, 1), opacity .5s ease .1s; }
.stage-box .avatar { transition: transform .8s cubic-bezier(.2, .7, .2, 1), opacity .5s ease; }
.stage-box[data-view="room"] .villa { transform: scale(2.6); opacity: 0; pointer-events: none; }
.stage-box[data-view="villa"] .avatar { transform: scale(.82); opacity: 0; pointer-events: none; }

/* 房间热区 */
.villa .room-hit { cursor: pointer; outline: none; }
.villa .room-glow { stroke: transparent; stroke-width: 4px; transition: stroke .15s; }
.villa .room-hit:hover .room-glow, .villa .room-hit:focus-visible .room-glow { stroke: #FF8A5B; }
.villa .room-hit.active .room-glow { stroke: #4FC3A1; }
.villa .room-hit:hover :is(rect, polygon) { filter: brightness(1.04); }
.villa .room-tag text { font-family: var(--font); pointer-events: none; }
.villa .marker-bob { animation: marker-bob 1.4s ease-in-out infinite; }
.villa .villa-marker { transition: transform .7s cubic-bezier(.5, 0, .2, 1); }
.villa .cloud.c1 { animation: drift 16s linear infinite; }
.villa .cloud.c2 { animation: drift 22s linear infinite -8s; }
@keyframes marker-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }

/* 跑步机传送带 */
.avatar .belt { animation: none; }
.avatar[data-state="running"] .belt { animation: belt .45s linear infinite; }
@keyframes belt { to { stroke-dashoffset: -40; } }
.avatar .room-tennis .cloud.c1 { animation: drift 18s linear infinite; }
.avatar .room-tennis .cloud.c2 { animation: drift 26s linear infinite -10s; }

/* 房间切换条 */
.rooms-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: 14px 0 4px; }
.room-chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px;
  border: 2px solid var(--ol); background: #fff; color: var(--ink); font-size: 14px; font-weight: 600;
  box-shadow: 0 3px 0 var(--ol); transition: transform .1s, box-shadow .1s, background .15s;
}
.room-chip:hover { background: #FFF3DC; }
.room-chip:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--ol); }
.room-chip.active { background: var(--accent); color: #fff; }
.room-chip.villa-btn { background: #FFE08A; }

.status { margin-top: 14px; border: 2px solid var(--ol); box-shadow: 0 3px 0 var(--ol); }

/* 推荐问题条目、房间提示 */
.room-hint { font-size: 13px; color: var(--muted); margin: 0 2px 6px; }

@media (max-width: 480px) {
  .stage-box { border-radius: 22px; }
  .room-chip { padding: 6px 11px; font-size: 13px; }
}


/* =====================================================================
   v4：3D 场景模式（html.mode-3d）— 全屏场景，UI 以浮层形式存在
   ===================================================================== */
.stage3d { display: none; }
.chat-toggle, .chat-close { display: none; }

html.mode-3d, html.mode-3d body { height: 100%; overflow: hidden; background: #BFE8FF; }
html.mode-3d .stage3d { display: block; position: fixed; inset: 0; z-index: 0; }
html.mode-3d .stage3d canvas { width: 100%; height: 100%; display: block; touch-action: none; outline: none; }

html.mode-3d .topbar {
  position: fixed; top: 0; left: 0; right: 0; max-width: none; z-index: 6;
  background: linear-gradient(rgba(255, 255, 255, .78), rgba(255, 255, 255, 0));
}
html.mode-3d .home { position: fixed; inset: 0; z-index: 4; max-width: none; padding: 0; pointer-events: none; }
html.mode-3d .stage { position: static; }
html.mode-3d .stage-box { display: none; }

/* 底部：房间栏（含 俯瞰 / 房间 / 聊聊） */
html.mode-3d .rooms-bar {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 6; pointer-events: auto;
  flex-wrap: nowrap; justify-content: flex-start; gap: 8px; margin: 0; padding: 8px 10px;
  max-width: calc(100vw - 20px); overflow-x: auto; scrollbar-width: none;
  background: rgba(255, 255, 255, .82); backdrop-filter: blur(10px);
  border: 2px solid var(--ol); border-radius: 999px; box-shadow: 0 6px 0 rgba(74, 59, 59, .25);
}
html.mode-3d .rooms-bar::-webkit-scrollbar { display: none; }
html.mode-3d .room-chip { flex: none; white-space: nowrap; }
html.mode-3d .chat-toggle { display: inline-flex; background: var(--coral); color: #fff; }
html.mode-3d .chat-toggle[aria-expanded="true"] { background: var(--ink); }

/* 左上：当前状态 */
html.mode-3d .status { position: fixed; top: 62px; left: 14px; z-index: 5; margin: 0; pointer-events: auto; max-width: min(78vw, 420px); }

/* 右下：可呼出的对话框，默认收起 */
html.mode-3d .chat {
  position: fixed; right: 16px; bottom: 88px; z-index: 7; margin: 0;
  width: min(410px, calc(100vw - 24px)); max-height: min(66vh, 580px);
  display: none; flex-direction: column; pointer-events: auto;
  border: 2px solid var(--ol); box-shadow: 0 8px 0 rgba(74, 59, 59, .25);
}
html.mode-3d .chat.open { display: flex; animation: chat-in .22s ease-out both; }
html.mode-3d .chat .messages { max-height: none; flex: 1 1 auto; min-height: 70px; }
html.mode-3d .chat-close {
  display: inline-flex; align-items: center; justify-content: center; position: absolute; top: 6px; right: 8px;
  width: 30px; height: 30px; border: 0; border-radius: 50%; background: var(--bg); color: var(--muted); font-size: 20px; line-height: 1;
}
html.mode-3d .chat-close:hover { background: var(--accent-soft); color: var(--accent-ink); }
html.mode-3d .about-chip { margin-right: 34px; }
@keyframes chat-in { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }

/* 头顶气泡 */
.bubble3d {
  position: absolute; left: 0; top: 0; z-index: 3; max-width: 260px; padding: 10px 14px;
  background: #fff; border: 2px solid var(--ol); border-radius: 16px; font-size: 14px; line-height: 1.5;
  box-shadow: 0 4px 0 rgba(74, 59, 59, .2); opacity: 0; pointer-events: none; transition: opacity .25s;
}
.bubble3d.show { opacity: 1; }
.bubble3d::after {
  content: ""; position: absolute; left: 50%; bottom: -9px; width: 14px; height: 14px; background: #fff;
  border-right: 2px solid var(--ol); border-bottom: 2px solid var(--ol); transform: translateX(-50%) rotate(45deg);
}

/* 到达房间时的大标题 */
.room-title {
  position: absolute; left: 50%; top: 13%; z-index: 3; transform: translateX(-50%); pointer-events: none; opacity: 0;
  font-size: clamp(30px, 7vw, 64px); font-weight: 800; letter-spacing: 2px; color: #fff; white-space: nowrap;
  -webkit-text-stroke: 7px var(--ol); paint-order: stroke fill; text-shadow: 0 6px 0 rgba(74, 59, 59, .25);
}
.room-title.show { animation: title-pop 1.9s ease both; }
@keyframes title-pop {
  0% { opacity: 0; transform: translate(-50%, 18px) scale(.7); }
  16% { opacity: 1; transform: translate(-50%, 0) scale(1.06); }
  26% { transform: translate(-50%, 0) scale(1); }
  76% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -14px) scale(1); }
}

/* 俯瞰时各房间的名牌 */
.room-labels { position: absolute; inset: 0; z-index: 2; pointer-events: none; opacity: 0; transition: opacity .35s; }
.room-labels.visible { opacity: 1; }
.room-label3d {
  position: absolute; left: 0; top: 0; pointer-events: none; padding: 6px 14px; border-radius: 999px;
  border: 2px solid var(--ol); background: #fff; color: var(--ink); font: 700 14px var(--font);
  box-shadow: 0 3px 0 var(--ol); cursor: pointer; white-space: nowrap;
}
.room-labels.visible .room-label3d { pointer-events: auto; }
.room-label3d:hover { background: #FFE08A; }

.overview-hint {
  position: absolute; left: 50%; bottom: 84px; z-index: 2; transform: translateX(-50%); padding: 6px 14px;
  background: rgba(255, 255, 255, .85); border: 2px solid var(--ol); border-radius: 999px; font-size: 13px; color: var(--muted);
  opacity: 0; transition: opacity .3s; pointer-events: none; white-space: nowrap;
}
.stage3d[data-view="overview"] .overview-hint, .overview-hint.show { opacity: 1; }

.stage3d-loading {
  position: absolute; inset: 0; z-index: 8; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, #DDF3FF, #F6FBF9); font-weight: 700; color: var(--accent-ink); letter-spacing: 1px;
}
.stage3d-loading[hidden] { display: none; }

@media (max-width: 560px) {
  html.mode-3d .chat { right: 8px; left: 8px; width: auto; bottom: 80px; max-height: 58vh; }
  html.mode-3d .status { top: 56px; font-size: 13px; }
  html.mode-3d .rooms-bar { flex-wrap: wrap; justify-content: center; border-radius: 22px; bottom: 10px; width: calc(100vw - 20px); gap: 6px; }
  html.mode-3d .overview-hint { bottom: 118px; }
  .bubble3d { max-width: 200px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  .room-title.show { animation-duration: .01s; }
}


/* =====================================================================
   v7：新空间的 2D 回退版状态（卧室/洗手间/车库/泳池）
   ===================================================================== */
.avatar[data-state="washing"] [data-only~="washing"],
.avatar[data-state="tinkering"] [data-only~="tinkering"],
.avatar[data-state="swimming"] [data-only~="swimming"] { display: inline; }

/* 睡觉：人物躺在卧室的床上（插画里已经画了），站立的人物不显示 */
.avatar[data-state="sleeping"] .actor { display: none; }
.avatar .room-bedroom .z { animation: zzz 3s ease-in-out infinite; opacity: 0; }
.avatar .room-bedroom .z2 { animation-delay: 1s; }
.avatar .room-bedroom .z3 { animation-delay: 2s; }
.avatar .room-bedroom .zzz { display: inline; }

/* 洗漱：右手举到嘴边刷牙，身体微微前倾 */
.avatar[data-state="washing"] .arm-r { transform: rotate(-142deg); }
.avatar[data-state="washing"] .forearm-r { animation: brush .26s ease-in-out infinite; }
.avatar[data-state="washing"] .arm-l { transform: rotate(18deg); }
.avatar[data-state="washing"] .head { transform: rotate(4deg); }
@keyframes brush { 0%, 100% { transform: rotate(-26deg); } 50% { transform: rotate(8deg); } }

/* 捣鼓车：双臂向前，右手持扳手来回扳动，身体前倾 */
.avatar[data-state="tinkering"] .arm-l { transform: rotate(14deg); }
.avatar[data-state="tinkering"] .forearm-l { transform: rotate(-10deg); }
.avatar[data-state="tinkering"] .arm-r { transform: rotate(-78deg); }
.avatar[data-state="tinkering"] .forearm-r { animation: wrench .7s ease-in-out infinite; }
.avatar[data-state="tinkering"] .head { transform: rotate(6deg); }
@keyframes wrench { 0%, 100% { transform: rotate(-10deg); } 50% { transform: rotate(-42deg); } }

/* 游泳：水面盖住下半身，双臂交替划水，身体上下起伏 */
.avatar[data-state="swimming"] .leg { display: none; }
.avatar[data-state="swimming"] .upper { animation: swim-bob 1.1s ease-in-out infinite; }
.avatar[data-state="swimming"] .arm-l { animation: crawl 1.1s linear infinite; }
.avatar[data-state="swimming"] .arm-r { animation: crawl 1.1s linear infinite -.55s; }
.avatar[data-state="swimming"] .forearm-l,
.avatar[data-state="swimming"] .forearm-r { transform: rotate(-12deg); }
.avatar[data-state="swimming"] .head { transform: rotate(-4deg); }
.avatar .water-front { animation: water-wave 2.4s ease-in-out infinite; }
@keyframes crawl { to { transform: rotate(-360deg); } }
@keyframes swim-bob { 0%, 100% { transform: translateY(14px); } 50% { transform: translateY(6px); } }
@keyframes water-wave { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }