/* ============ 慧居AI找房 · 浅蓝主题 ============ */
:root{
  --blue:#2f8ee0; --blue-dark:#1a6fc0; --blue-deep:#15507e;
  --blue-light:#e8f4fd; --blue-lighter:#f3faff; --blue-border:#cfe7fa;
  --text:#22384c; --text-sub:#6b8299; --radius:14px;
  --shadow:0 6px 24px rgba(47,142,224,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:var(--blue-lighter);color:var(--text);font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}

/* ---------- 顶部导航 ---------- */
.nav{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--blue-border);position:sticky;top:0;z-index:50}
.nav .wrap{display:flex;align-items:center;height:62px;gap:26px}
.logo{font-size:21px;font-weight:700;color:var(--blue-dark);display:flex;align-items:center;gap:8px}
.logo .ai-dot{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;border-radius:8px;padding:2px 8px;font-size:14px}
.nav-links{display:flex;gap:22px;flex:1}
.nav-links a{color:var(--text-sub);padding:6px 2px;font-size:15px;border-bottom:2px solid transparent}
.nav-links a.on,.nav-links a:hover{color:var(--blue-dark);border-color:var(--blue)}
.nav-user{display:flex;gap:12px;align-items:center}
.btn{display:inline-block;border:none;cursor:pointer;border-radius:10px;padding:9px 20px;font-size:14px;transition:.2s}
.btn-primary{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;box-shadow:0 4px 14px rgba(47,142,224,.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(47,142,224,.45)}
.btn-ghost{background:var(--blue-light);color:var(--blue-dark)}
.btn-ghost:hover{background:#dceefb}

/* ---------- 首页 Hero（AI搜索核心区） ---------- */
.hero{background:linear-gradient(165deg,#dff0fe 0%,#eaf6ff 55%,#f3faff 100%);padding:64px 0 54px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(74,163,232,.18),transparent 70%);top:-160px;right:-100px}
.hero h1{font-size:34px;color:var(--blue-deep);letter-spacing:1px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,#2f8ee0,#7d5fe8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{color:var(--text-sub);margin:12px 0 30px;font-size:16px}
.ai-search{max-width:760px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:0 12px 40px rgba(47,142,224,.18);padding:10px 10px 10px 20px;display:flex;align-items:center;gap:12px;border:2px solid transparent;transition:.25s}
.ai-search:focus-within{border-color:var(--blue)}
.ai-search .ico{font-size:22px}
.ai-search input{flex:1;border:none;outline:none;font-size:16px;padding:14px 0;background:transparent}
.ai-search button{white-space:nowrap;font-size:16px;padding:13px 30px;border-radius:13px}
.hero .examples{margin-top:14px;color:var(--text-sub);font-size:13px}
.hero .examples a{color:var(--blue-dark);margin:0 6px;border-bottom:1px dashed var(--blue)}
.quick-tags{max-width:760px;margin:22px auto 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.qt{background:#fff;border:1px solid var(--blue-border);color:var(--blue-dark);border-radius:20px;padding:7px 16px;font-size:13px;cursor:pointer;transition:.2s}
.qt:hover,.qt.on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---------- 区块 ---------- */
.section{padding:38px 0 8px}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.sec-head h2{font-size:22px;color:var(--blue-deep)}
.sec-head span{color:var(--text-sub);font-size:13px}
.sec-head .more{margin-left:auto;color:var(--blue);font-size:13px}

/* ---------- 房源卡片 ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:block}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(47,142,224,.2)}
.cover{height:150px;position:relative;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-size:42px}
.cover .score-badge{position:absolute;top:10px;left:10px;background:rgba(255,255,255,.95);color:var(--blue-dark);font-weight:700;border-radius:8px;padding:3px 9px;font-size:13px}
.cover .type-badge{position:absolute;top:10px;right:10px;background:rgba(21,80,126,.75);color:#fff;border-radius:8px;padding:3px 9px;font-size:12px}
.card .body{padding:13px 14px 15px}
.card h3{font-size:15px;line-height:1.45;height:44px;overflow:hidden;font-weight:600}
.card .meta{color:var(--text-sub);font-size:12.5px;margin:7px 0}
.card .price{color:#e8571d;font-size:14px}
.card .price b{font-size:20px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.tag{background:var(--blue-light);color:var(--blue-dark);border-radius:6px;padding:2px 8px;font-size:11.5px}
.tag.hl{background:#fff3e8;color:#d9691e}

/* ---------- 结果页 ---------- */
.result-head{background:linear-gradient(135deg,#e3f2fe,#f0f8ff);border:1px solid var(--blue-border);border-radius:var(--radius);padding:20px 24px;margin:24px 0 18px}
.result-head h2{font-size:18px;color:var(--blue-deep);margin-bottom:10px}
.need-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:#fff;border:1px solid var(--blue);color:var(--blue-dark);border-radius:16px;padding:4px 14px;font-size:13px}
.sort-bar{display:flex;gap:8px;margin:0 0 18px;flex-wrap:wrap}
.sort-bar a{background:#fff;border:1px solid var(--blue-border);border-radius:9px;padding:7px 16px;font-size:13px;color:var(--text-sub)}
.sort-bar a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.result-item{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);display:flex;gap:18px;padding:16px;margin-bottom:14px;transition:.2s}
.result-item:hover{box-shadow:0 12px 30px rgba(47,142,224,.18)}
.result-item .cover{width:218px;min-width:218px;height:154px;border-radius:10px}
.ri-body{flex:1;min-width:0}
.ri-body h3{font-size:17px}
.match-ring{width:64px;min-width:64px;height:64px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:conic-gradient(var(--blue) calc(var(--p)*1%),#e3eef8 0);position:relative}
.match-ring::before{content:"";position:absolute;inset:6px;background:#fff;border-radius:50%}
.match-ring b{position:relative;color:var(--blue-dark);font-size:16px}
.match-ring i{position:relative;font-style:normal;font-size:10px;color:var(--text-sub)}
.hl-list{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px}
.hl-item{background:#eafaf0;color:#1d8a4a;border-radius:6px;padding:2px 9px;font-size:12px}
.miss-item{background:#f6f7f9;color:#98a5b3;border-radius:6px;padding:2px 9px;font-size:12px;text-decoration:line-through}

/* ---------- 详情页 ---------- */
.detail-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin-top:22px}
.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.panel h2{font-size:18px;color:var(--blue-deep);margin-bottom:14px;padding-left:10px;border-left:4px solid var(--blue)}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.info-grid .item{background:var(--blue-lighter);border-radius:10px;padding:10px 14px}
.info-grid .item small{color:var(--text-sub);display:block;font-size:12px}
.ai-box{background:linear-gradient(135deg,#eef7ff,#f5fbff);border:1px solid var(--blue-border);border-radius:12px;padding:16px 18px;margin-top:14px}
.ai-box h4{color:var(--blue-dark);font-size:14px;margin-bottom:8px}
.ai-box ul{padding-left:18px;color:#3a5570;font-size:13.5px;line-height:1.9}

/* ---------- 表单 / 登录 ---------- */
.form-card{max-width:420px;margin:60px auto;background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:36px}
.form-card h1{font-size:22px;color:var(--blue-deep);margin-bottom:22px;text-align:center}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;border:1px solid var(--blue-border);border-radius:10px;padding:11px 14px;font-size:14px;outline:none;background:var(--blue-lighter)}
.form-group input:focus{border-color:var(--blue);background:#fff}
.alert{border-radius:10px;padding:11px 16px;font-size:13.5px;margin-bottom:16px}
.alert-err{background:#fdeeee;color:#c0392b}
.alert-ok{background:#eafaf0;color:#1d8a4a}

/* ---------- 页脚 ---------- */
.footer{margin-top:56px;background:#123a5c;color:#9fc3e0;padding:36px 0 30px;font-size:13px}
.footer .wrap{display:flex;gap:60px;flex-wrap:wrap}
.footer h4{color:#fff;margin-bottom:12px;font-size:14px}
.footer a{display:block;margin:6px 0;color:#9fc3e0}
.footer a:hover{color:#fff}
.footer .copy{width:100%;border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:16px;color:#7ba6c9}

/* ---------- 个人中心 ---------- */
.uc-grid{display:grid;grid-template-columns:250px 1fr;gap:20px;margin-top:24px}
.uc-side{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;height:fit-content}
.uc-side .avatar{width:70px;height:70px;border-radius:50%;background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.uc-side .uname{text-align:center;font-weight:600;margin-bottom:18px}
.uc-side a{display:block;padding:10px 14px;border-radius:9px;color:var(--text-sub);margin-bottom:4px}
.uc-side a.on,.uc-side a:hover{background:var(--blue-light);color:var(--blue-dark)}
table.list{width:100%;border-collapse:collapse;font-size:13.5px}
table.list th{background:var(--blue-light);color:var(--blue-deep);text-align:left;padding:10px 12px}
table.list td{padding:10px 12px;border-bottom:1px solid #eef4f9}
table.list tr:hover td{background:var(--blue-lighter)}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .detail-grid,.uc-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .hero h1{font-size:24px}
  .result-item{flex-direction:column}
  .result-item .cover{width:100%}
  .info-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .grid{grid-template-columns:1fr}
  .ai-search{flex-direction:column;align-items:stretch;padding:14px}
  .ai-search button{width:100%}
}

/* ---------- 经纪人 AI 客服聊天组件 ---------- */
.chat-fab{position:fixed;right:22px;bottom:24px;z-index:60;background:linear-gradient(135deg,#4aa3e8,#2f8ee0);
  color:#fff;padding:13px 20px;border-radius:30px;box-shadow:0 8px 24px rgba(47,142,224,.4);
  cursor:pointer;font-size:15px;font-weight:600;border:none}
.chat-fab:hover{transform:translateY(-2px);transition:.2s}
.chat-panel{position:fixed;right:22px;bottom:90px;z-index:61;width:340px;max-width:92vw;height:480px;max-height:78vh;
  background:#fff;border-radius:16px;box-shadow:0 16px 50px rgba(20,58,92,.28);overflow:hidden;
  display:none;flex-direction:column;border:1px solid #cfe6fb}
.chat-panel.open{display:flex}
.chat-head{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;padding:12px 16px;display:flex;align-items:flex-start;justify-content:space-between}
.chat-head b{font-size:15px}
.chat-status{font-size:12px;opacity:.95}
.chat-status.on{color:#eafff0}.chat-status.off{color:#fff3e0}
.chat-close{background:none;border:none;color:#fff;font-size:22px;line-height:1;cursor:pointer}
.chat-body{flex:1;overflow-y:auto;padding:14px;background:#f4f9fe}
.chat-msg{display:flex;flex-direction:column;margin-bottom:12px;max-width:85%}
.chat-msg.me{align-self:flex-end;align-items:flex-end;margin-left:auto}
.chat-msg .bubble{padding:9px 13px;border-radius:14px;font-size:13.5px;line-height:1.5;word-break:break-word}
.chat-msg.other .bubble{background:#fff;border:1px solid #dcebfa;color:#234}
.chat-msg.me .bubble{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff}
.chat-msg .t{font-size:11px;color:#9bb;margin-top:3px}
.chat-tip{text-align:center;font-size:11.5px;color:#8aa;margin:6px 0}
.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid #e3eefb;background:#fff}
.chat-input textarea{flex:1;border:1px solid #cfe0f2;border-radius:10px;padding:8px 10px;resize:none;height:42px;font-size:13px;font-family:inherit}
.chat-input .btn{padding:0 16px;height:42px}

/* 浮动聊天窗口（工作台内：固定大小、默认隐藏、点击展开） */
.hjfw-launch{position:fixed;right:24px;bottom:24px;z-index:9000;display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;border:none;border-radius:30px;padding:12px 20px;font-size:14px;cursor:pointer;box-shadow:0 10px 26px rgba(47,142,224,.35);font-family:inherit}
.hjfw-launch:hover{filter:brightness(1.05)}
.hjfw-launch .badge{position:absolute;top:-7px;right:-7px;min-width:20px;height:20px;line-height:20px;background:#e8571d;color:#fff;border-radius:11px;font-size:12px;text-align:center;padding:0 5px;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.hjfw-panel{position:fixed;right:24px;bottom:24px;z-index:9001;width:372px;height:560px;max-width:calc(100vw - 32px);max-height:calc(100vh - 48px);background:#fff;border:1px solid #cfe6fb;border-radius:16px;box-shadow:0 18px 50px rgba(20,60,100,.28);display:none;flex-direction:column;overflow:hidden}
.hjfw-panel.open{display:flex}
.hjfw-top{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;padding:10px 12px;display:flex;align-items:center;gap:8px}
.hjfw-top b{font-size:14px;white-space:nowrap}
.hjfw-top select{font-size:12px;padding:3px 6px;border-radius:7px;border:1px solid rgba(255,255,255,.6);background:rgba(255,255,255,.92);color:#163;max-width:140px}
.hjfw-top .x{background:none;border:none;color:#fff;font-size:22px;line-height:1;cursor:pointer;padding:0 2px}
.hjfw-sess{width:100%;border:none;border-bottom:1px solid #eef3f8;background:#f7fbff;padding:8px 12px;font-size:13px;color:#234;outline:none}
.hjfw-cust{border-bottom:1px solid #eef3f8;padding:8px 12px;background:#f7fbff;font-size:12px;color:#456;max-height:170px;overflow:auto}
.hjfw-cust .row{margin:3px 0;line-height:1.5}
.hjfw-cust a{color:#1a6fc0;text-decoration:none;font-weight:600}
.hjfw-cust code{font-size:11px}

/* ===== 视频看房页 ===== */
.hero-sm{padding:18px 0 14px;position:sticky;top:0;z-index:6;background:linear-gradient(180deg,#eaf4ff,#f6fbff);border-bottom:1px solid #e3eefb}
.hero-sm h1{font-size:24px}
.video-feed{height:calc(100vh - 220px);overflow-y:auto;scroll-snap-type:y mandatory;max-width:760px;margin:14px auto 0;border-radius:18px;background:#000;box-shadow:0 12px 40px rgba(20,60,100,.18)}
.feed-item{position:relative;height:100%;scroll-snap-align:start;display:flex;align-items:center;justify-content:center;background:#000;overflow:hidden}
.feed-video{width:100%;height:100%;object-fit:contain;background:#000;cursor:pointer}
.feed-mute{position:absolute;top:12px;right:12px;z-index:4;width:38px;height:38px;border:none;border-radius:50%;background:rgba(0,0,0,.45);color:#fff;font-size:16px;cursor:pointer}
.feed-mute:hover{background:rgba(0,0,0,.65)}
.feed-overlay{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:16px 18px 18px;color:#fff;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.75))}
.fm-title{font-size:18px;font-weight:600;line-height:1.4;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.fm-price{margin-top:6px;font-size:15px;color:#ffd27a}
.fm-price b{font-size:19px}
.v-adv{display:inline-block;margin-left:8px;font-size:11px;color:#e8571d;background:#fdeee6;padding:1px 7px;border-radius:6px;font-weight:600}
.fm-sub{font-size:12.5px;color:#dfe9f3;margin-top:5px;line-height:1.5}
.feed-overlay .v-tags{margin-top:8px}
.feed-overlay .v-tags .tag{font-size:11px;background:rgba(255,255,255,.18);color:#fff;padding:2px 8px;border-radius:6px}
.fm-desc{font-size:12.5px;color:#cfe0f0;line-height:1.6;margin-top:8px;max-height:3.6em;overflow:hidden}
.fm-agent{font-size:12px;color:#e8eef5;margin-top:9px}
.feed-actions{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.feed-actions .btn{min-height:34px;font-size:13px}
@media(max-width:880px){.video-feed{height:calc(100vh - 300px);max-width:100%;border-radius:0;margin-top:8px}.hero-sm{position:static}}

/* ===== 嵌入模式（iframe 频道：隐藏主站导航、铺满容器） ===== */
.embed{background:#0a1422}
.embed .wrap{max-width:100%;padding-left:0;padding-right:0}
.embed .hero-sm{padding:18px 16px 10px;margin:0}
.embed .hero-sm h1{font-size:20px}
.embed .hero-sm .sub{margin-bottom:8px}
.embed .ai-search{box-shadow:0 4px 16px rgba(20,60,100,.18)}
.embed .quick-tags{margin-top:8px}
.embed .video-feed{height:calc(100vh - 150px);max-width:100%;border-radius:0;margin:0;box-shadow:none}
.embed .feed-overlay .fm-title{font-size:16px}
.embed .chat-fab{bottom:18px;right:18px}
@media(max-width:880px){.embed .video-feed{height:calc(100vh - 200px)}}

/* ===== 弹窗（约线下看房） ===== */
.modal-mask{position:fixed;inset:0;background:rgba(20,40,70,.45);z-index:80;display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.open{display:flex}
.modal{background:#fff;border-radius:16px;width:100%;max-width:440px;box-shadow:0 20px 60px rgba(20,60,100,.35);overflow:hidden}
.modal-head{background:linear-gradient(135deg,#4aa3e8,#2f8ee0);color:#fff;padding:14px 18px;font-size:16px;font-weight:600;display:flex;align-items:center}
.modal-x{margin-left:auto;color:#fff;font-size:22px;line-height:1;text-decoration:none}
.modal form{padding:18px}
.modal .form-group{margin-bottom:14px}
.modal .form-group label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:6px}
.modal .form-group input,.modal .form-group textarea{width:100%;border:1px solid var(--blue-border);border-radius:10px;padding:10px 13px;font-size:14px;outline:none;font-family:inherit}
.modal .form-group input:focus,.modal .form-group textarea:focus{border-color:var(--blue);background:#fff}