:root {
  --blue: #2b6cff;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --line: #e5e7eb;
  --radius: 14px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; }
.topbar { position: sticky; top: 0; z-index: 50; display: flex; align-items: baseline; gap: 8px;
  padding: 12px 16px; background: #fff; border-bottom: 1px solid var(--line); }
.brand { font-weight: 800; font-size: 18px; color: var(--blue); text-decoration: none; }
.brand-sub { font-size: 12px; color: var(--muted); }
#app { max-width: 480px; margin: 0 auto; padding: 16px; }

/* 首页 */
.home h1 { font-size: 24px; margin: 8px 0 4px; }
.home .sub { color: var(--muted); margin: 0 0 16px; }
.card-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.demo-card { display: flex; flex-direction: column; gap: 2px; padding: 14px 16px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--text); }
.demo-card strong { font-size: 15px; }
.demo-card span { font-size: 12px; color: var(--muted); }
.big-link { display: block; text-align: center; padding: 14px; background: var(--blue); color: #fff;
  border-radius: var(--radius); text-decoration: none; font-weight: 600; }

/* 通用卡片渲染 */
.snap-card { background: var(--card); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.card-header { padding: 16px; background: linear-gradient(135deg, #eaf1ff, #f5f7fb); }
.card-cover { width: 100%; height: 120px; object-fit: cover; border-radius: 10px; margin-bottom: 8px; }
.card-identity { font-size: 18px; font-weight: 700; }
.card-body { padding: 8px 16px 16px; display: flex; flex-direction: column; gap: 10px; }
.f-text, .f-date, .f-select, .f-richtext { font-size: 15px; line-height: 1.5; }
.f-richtext { color: #333; }
.f-row { display: flex; align-items: center; gap: 8px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.f-label { color: var(--muted); font-size: 13px; min-width: 64px; }
.f-value { flex: 1; font-size: 15px; word-break: break-all; }
.f-btn { border: none; background: var(--blue); color: #fff; padding: 8px 14px; border-radius: 10px; font-size: 13px; }
.f-image { width: 100%; border-radius: 10px; }
.f-missing, .render-warn { font-size: 12px; color: #b45309; }
.render-error { font-size: 13px; color: #d93636; padding: 8px; }

/* 音频 */
.f-audio { display: flex; align-items: center; gap: 10px; padding: 12px; background: #fff7ed; border-radius: 10px; }
.audio-hint { flex: 1; font-size: 14px; }
.audio-btn { border: none; background: #e08600; color: #fff; padding: 10px 16px; border-radius: 12px; font-size: 14px; }

/* 家庭留条 */
.f-note { display: flex; flex-direction: column; gap: 8px; }
.note-item { background: #f0f7ff; border-radius: 10px; padding: 10px 12px; }
.note-time { font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.note-body { font-size: 15px; }

/* 快捷拨号（无障碍大字高对比） */
.quickdial { padding: 12px; }
.qd-title { text-align: center; font-size: 16px; font-weight: 700; margin-bottom: 12px; }
.qd-grid { display: grid; gap: 12px; }
.layout-1 .qd-grid { grid-template-columns: 1fr; }
.layout-2 .qd-grid { grid-template-columns: 1fr 1fr; }
.layout-4 .qd-grid { grid-template-columns: 1fr 1fr; }
.qd-circle { border: none; border-radius: 18px; aspect-ratio: 1/1; color: #fff; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 10px rgba(0,0,0,.15); }
.qd-circle:active { transform: scale(.97); }
.qd-note { font-size: 12px; color: var(--muted); text-align: center; margin-top: 10px; }

/* 留资表单 */
.f-form { border: 1px solid var(--line); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.form-title { font-weight: 600; font-size: 15px; }
.form-label { font-size: 12px; color: var(--muted); }
.f-form input, .f-form textarea { padding: 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 15px; }
.form-submit { border: none; background: var(--blue); color: #fff; padding: 12px; border-radius: 10px; font-size: 15px; font-weight: 600; }

/* WebView 降级横幅 */
.webview-banner { background: #fffbe6; border: 1px solid #ffe58f; color: #874d00; padding: 10px 12px;
  border-radius: 10px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; font-size: 13px; }
.webview-btn { border: none; background: #874d00; color: #fff; padding: 8px 12px; border-radius: 8px; font-size: 13px; white-space: nowrap; }
.visitor-bar { position: sticky; bottom: 0; margin-top: 14px; display: flex; gap: 10px; }
.bar-btn { flex: 1; border: 1px solid var(--line); background: #fff; padding: 12px; border-radius: 12px; font-size: 14px; }

/* Toast */
.snap-toast { position: fixed; left: 50%; bottom: 80px; transform: translateX(-50%) translateY(20px);
  background: rgba(0,0,0,.82); color: #fff; padding: 10px 16px; border-radius: 20px; font-size: 14px;
  opacity: 0; transition: .25s; pointer-events: none; z-index: 100; }
.snap-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Studio */
.studio-head h1 { font-size: 22px; margin: 4px 0; }
.studio-head .sub { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.tag { font-size: 11px; background: var(--blue); color: #fff; padding: 2px 8px; border-radius: 8px; vertical-align: middle; }
.studio-toolbar { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.studio-toolbar select { flex: 1; padding: 8px; border-radius: 8px; border: 1px solid var(--line); }
.studio-body { display: flex; flex-direction: column; gap: 12px; }
.editor-pane, .preview-pane { border: 1px solid var(--line); border-radius: 12px; background: #fff; overflow: hidden; }
.pane-title { background: #fafafa; padding: 8px 12px; font-size: 12px; color: var(--muted); border-bottom: 1px solid var(--line); }
#json-editor { width: 100%; min-height: 320px; border: none; padding: 12px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; resize: vertical; }
#preview { padding: 12px; }

.loading, .error { text-align: center; color: var(--muted); padding: 40px 0; }
.error a { color: var(--blue); }

/* 顶部引流导航（独立站感） */
.topnav { margin-left: auto; display: flex; gap: 14px; }
.topnav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.topnav a:hover { color: var(--blue); }

/* 官网首页（品牌站） */
.site-home .hero { text-align: center; padding: 28px 8px 18px; }
.site-home .hero h1 { font-size: 38px; margin: 0 0 8px; color: var(--blue); letter-spacing: 1px; }
.hero-sub { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.hero-cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.big-link.ghost { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.value { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 18px 0; }
.val { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; text-align: center; }
.val b { display: block; font-size: 15px; margin-bottom: 4px; }
.val span { font-size: 12px; color: var(--muted); }
.lead { text-align: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-top: 18px; }
.lead p { font-size: 14px; color: #333; line-height: 1.6; margin: 0 0 14px; }

/* 官网：三步上手 / 热门场景 / FAQ / 收尾 */
.site-home .flow, .site-home .scene, .site-home .faq, .site-home .cta-final { margin-top: 20px; }
.site-home h2 { font-size: 17px; margin: 0 0 12px; }
.flow-row { display: flex; flex-direction: column; gap: 10px; }
.flow-step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 14px 14px 48px; }
.flow-step b { display: block; font-size: 15px; margin-bottom: 4px; }
.flow-step span:not(.flow-no) { font-size: 13px; color: var(--muted); line-height: 1.5; }
.flow-no { position: absolute; left: 14px; top: 14px; width: 24px; height: 24px; border-radius: 50%;
  background: var(--blue); color: #fff; font-size: 13px; font-weight: 700; display: flex;
  align-items: center; justify-content: center; }
.scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.scene-item { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; text-decoration: none; color: inherit; }
.scene-item b { display: block; font-size: 15px; margin-bottom: 4px; color: var(--blue); }
.scene-item span { font-size: 12px; color: var(--muted); line-height: 1.5; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 8px; }
.faq summary { font-size: 14px; font-weight: 600; cursor: pointer; }
.faq details p { font-size: 13px; color: #444; line-height: 1.7; margin: 8px 0 0; }
.cta-final { text-align: center; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; }
.cta-final p { font-size: 15px; margin: 0 0 14px; font-weight: 600; }
.site-foot { text-align: center; font-size: 12px; color: var(--muted); margin: 22px 0 8px; }

/* 模板交互站 */
.tpl-head { text-align: center; margin: 8px 0 16px; }
.tpl-head h1 { font-size: 26px; margin: 0 0 6px; }
.tpl-head .sub { color: var(--muted); font-size: 13px; margin: 0; }
.tpl-grid { display: flex; flex-direction: column; gap: 16px; }
.tpl-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.tpl-head-row { margin-bottom: 10px; }
.tpl-name { font-size: 16px; font-weight: 700; }
.tpl-desc { font-size: 13px; color: var(--muted); line-height: 1.5; margin-top: 2px; }
.tpl-preview { border: 1px dashed var(--line); border-radius: 10px; padding: 8px; margin-bottom: 10px; }
.tpl-actions { display: flex; gap: 10px; }
.tpl-btn { flex: 1; text-align: center; padding: 10px; border-radius: 10px; font-size: 14px; text-decoration: none; background: #f1f5ff; color: var(--blue); border: 1px solid #d6e2ff; }
.tpl-btn.primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.tpl-search { width:100%; box-sizing:border-box; margin:12px 0 10px; padding:10px 12px; font-size:15px;
  border:1px solid var(--line); border-radius:10px; background:#fff; }
.tpl-cats { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; }
.tpl-cat { padding:7px 12px; font-size:13px; border-radius:999px; border:1px solid var(--line);
  background:#fff; color:#444; cursor:pointer; }
.tpl-cat.active { background:var(--blue); color:#fff; border-color:var(--blue); }
.tpl-count { font-size:13px; color:var(--muted); margin:0 2px 10px; }
.tpl-tag { display:inline-block; margin-left:6px; padding:2px 8px; font-size:11px; border-radius:999px;
  background:#f1f5ff; color:var(--blue); vertical-align:middle; }
.tpl-empty { text-align:center; padding:28px 0; color:var(--muted); font-size:14px; }

/* 首碰绑定（方案 a：手机号 + 短信验证码） */
.bind-box { background:#fff; border:1px solid var(--line); border-radius:14px; padding:18px; margin-top:12px; }
.bind-box h2 { font-size:18px; margin:0 0 6px; }
.bind-desc { font-size:14px; color:var(--muted); line-height:1.6; margin:0 0 14px; }
.bind-box label { display:block; font-size:13px; color:var(--muted); margin-bottom:10px; }
.bind-box input { width:100%; box-sizing:border-box; padding:12px; font-size:16px;
  border:1px solid var(--line); border-radius:10px; margin-top:6px; }
.bind-row { display:flex; gap:8px; align-items:stretch; margin-bottom:12px; }
.bind-row input { flex:2; margin-top:0; }
.bind-row .bar-btn { flex:1; white-space:nowrap; margin:0; }
.bind-box .tpl-btn { display:block; width:100%; padding:12px; font-size:16px; border:0; cursor:pointer; }
.bind-tip { min-height:20px; font-size:13px; color:var(--blue); margin:10px 0 0; }
.bind-foot { font-size:12px; color:var(--muted); margin:8px 0 0; }

/* W2 登录 / 授权申请 */
.login-box { background:#fff; border:1px solid var(--line); border-radius:12px; padding:12px; margin-top:10px; font-size:14px; }
.login-title { font-weight:600; margin-bottom:8px; }
.access-panel { margin-top:14px; }
.access-row { display:flex; align-items:center; gap:8px; padding:8px 0; border-bottom:1px solid var(--line); font-size:13px; flex-wrap:wrap; }
.access-row .reason { color:var(--muted); flex:1; min-width:120px; }

/* W3 创作台 / W4 发货台 */
.studio-links { display:flex; gap:14px; margin-top:12px; font-size:14px; }
.studio-links a { color:var(--blue); text-decoration:none; }
.cr-meta { display:flex; gap:8px; flex-wrap:wrap; margin:10px 0; }
.cr-meta input, .cr-meta select { padding:10px; border:1px solid var(--line); border-radius:10px; font-size:14px; flex:1; min-width:120px; }
.cr-field { display:flex; gap:6px; align-items:center; flex-wrap:wrap; padding:6px 0; }
.cr-field input, .cr-field select { padding:8px; border:1px solid var(--line); border-radius:8px; font-size:13px; }
.cr-json { background:#f7f8fa; border:1px solid var(--line); border-radius:8px; padding:10px; font-size:12px;
  white-space:pre-wrap; word-break:break-all; max-height:220px; overflow:auto; }
.bar-btn.primary { background:var(--blue); color:#fff; border-color:var(--blue); }

/* 底部三站导航（互相引流） */
.site-nav { position: sticky; bottom: 0; display: flex; gap: 4px; margin-top: 20px;
  background: #fff; border-top: 1px solid var(--line); border-radius: 14px 14px 0 0; overflow: hidden; }
.site-nav a { flex: 1; text-align: center; padding: 12px 4px; font-size: 13px; color: var(--text); text-decoration: none; }
.site-nav a:hover { background: #f5f7fb; color: var(--blue); }