/* ThinkWay Concierge — 对话挂件。只用 twc- 前缀；复用 main.css 的品牌变量，缺了有兜底。
   入口是右下角那颗蓝点（全站唯一符号），打开后是一块深色玻璃面板；手机整屏。 */
.twc{--twc-blue:var(--blue,#007DFF);--twc-paper:var(--paper,#ECEAE4);--twc-dim:var(--dim,#8A8884);--twc-bg:rgba(13,13,15,.86);--twc-line:rgba(255,255,255,.1);--twc-font:var(--font,"Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif);--twc-mono:var(--mono,"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace);--twc-ease:var(--ease,cubic-bezier(.2,.7,.2,1));font-family:var(--twc-font);color:var(--twc-paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.twc *,.twc *::before,.twc *::after{box-sizing:border-box}
.twc button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}

/* ---------- 入口：蓝点药丸 ---------- */
.twc .twc-pill{position:fixed;right:22px;bottom:22px;z-index:70;height:46px;padding:0 18px 0 16px;border-radius:999px;display:flex;align-items:center;gap:11px;background:var(--twc-paper);color:#111;font-size:13px;font-weight:500;letter-spacing:.01em;line-height:1;white-space:nowrap;box-shadow:0 12px 32px rgba(0,0,0,.35);transition:background .4s,opacity .4s,transform .5s var(--twc-ease)}
.twc .twc-pill:hover{background:#fff;transform:translateY(-1px)}
.twc .twc-pill .twc-led{box-shadow:0 0 10px rgba(0,125,255,.6)}
.twc.open .twc-pill{opacity:0;pointer-events:none;transform:translateY(10px)}
.twc-led{width:7px;height:7px;border-radius:50%;background:var(--twc-blue);box-shadow:0 0 12px rgba(0,125,255,.8);flex:none;animation:twcBreathe 2.4s ease-in-out infinite}
@keyframes twcBreathe{0%,100%{opacity:.45;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}

/* ---------- 引导卡片：进站几秒后在入口上方出现一次 ---------- */
.twc-teaser{position:fixed;right:22px;bottom:82px;z-index:70;width:min(300px,calc(100vw - 44px));padding:16px 40px 16px 16px;border-radius:18px;background:rgba(13,13,15,.86);backdrop-filter:blur(22px) saturate(1.2);-webkit-backdrop-filter:blur(22px) saturate(1.2);border:1px solid rgba(255,255,255,.12);box-shadow:0 20px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.05);color:var(--twc-paper);cursor:pointer;opacity:0;transform:translateY(10px);visibility:hidden;transition:opacity .5s var(--twc-ease),transform .6s var(--twc-ease),visibility 0s .6s}
.twc-teaser.show{opacity:1;transform:none;visibility:visible;transition:opacity .5s var(--twc-ease),transform .6s var(--twc-ease),visibility 0s}
.twc-teaser .twc-eyebrow{margin:0 0 8px}
.twc-teaser p{margin:0;font-size:14px;line-height:1.5;color:rgba(236,234,228,.92)}
.twc .twc-teaser .twc-x{position:absolute;right:8px;top:8px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;opacity:.5}
.twc .twc-teaser .twc-x:hover{opacity:1;background:rgba(255,255,255,.08)}
.twc .twc-teaser .twc-x svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round}
.twc.open .twc-teaser{display:none}

/* ---------- 面板 ---------- */
.twc-panel{position:fixed;right:22px;bottom:22px;z-index:96;width:min(420px,calc(100vw - 44px));height:min(720px,calc(100dvh - 44px));display:flex;flex-direction:column;background:var(--twc-bg);backdrop-filter:blur(30px) saturate(1.25);-webkit-backdrop-filter:blur(30px) saturate(1.25);border:1px solid var(--twc-line);border-radius:26px;box-shadow:0 30px 90px rgba(0,0,0,.55),0 0 0 1px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);overflow:hidden;transform-origin:calc(100% - 23px) calc(100% - 23px);opacity:0;transform:translateY(14px) scale(.96);pointer-events:none;visibility:hidden;transition:opacity .4s var(--twc-ease),transform .55s var(--twc-ease),visibility 0s .55s}
.twc.open .twc-panel{opacity:1;transform:none;pointer-events:auto;visibility:visible;transition:opacity .4s var(--twc-ease),transform .55s var(--twc-ease),visibility 0s}
.twc-panel::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 36% at 18% 0%,rgba(0,125,255,.13),transparent 70%)}

/* 头部：蓝点头像 + 名字 + 状态 */
.twc-head{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 14px 16px 20px;border-bottom:1px solid var(--twc-line)}
.twc-id{display:flex;align-items:center;gap:13px;min-width:0}
.twc-avatar{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);display:grid;place-items:center;flex:none}
.twc-avatar .twc-led{width:9px;height:9px}
.twc-id strong{display:block;font-size:15px;font-weight:500;letter-spacing:-.01em;line-height:1.2}
.twc-id small{display:block;margin-top:4px;font-family:var(--twc-mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--twc-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.twc-actions{display:flex;gap:2px}
.twc .twc-ib{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;opacity:.7;transition:opacity .3s,background .3s}
.twc .twc-ib:hover{opacity:1;background:rgba(255,255,255,.08)}
.twc-ib svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* 正文流 */
.twc-body{position:relative;flex:1;overflow-y:auto;overscroll-behavior:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;padding:20px 20px 10px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.14) transparent}
.twc-body::-webkit-scrollbar{width:6px}.twc-body::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:3px}
.twc-stream{display:flex;flex-direction:column;gap:14px}
.twc-eyebrow{display:flex;align-items:center;gap:9px;font-family:var(--twc-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--twc-dim);margin:2px 0 -4px 2px}
.twc-eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--twc-blue);box-shadow:0 0 8px rgba(0,125,255,.7)}
.twc-m{max-width:88%;font-size:15px;line-height:1.55;letter-spacing:-.004em;animation:twcIn .5s var(--twc-ease) both;overflow-wrap:anywhere}
@keyframes twcIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.twc-m--u{align-self:flex-end;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.06);padding:10px 14px;border-radius:18px 18px 6px 18px;white-space:pre-wrap}
.twc-m--a{align-self:flex-start;max-width:94%;padding-left:2px;color:rgba(236,234,228,.94)}
.twc-m--a p{margin:0}
.twc-m--a p+p,.twc-m--a ul+p,.twc-m--a ol+p,.twc-m--a p+ul,.twc-m--a p+ol,.twc-m--a figure+p{margin-top:10px}
.twc-m--a ul,.twc-m--a ol{margin:0;padding-left:20px}
.twc-m--a ul{list-style:disc}
.twc-m--a ol{list-style:decimal}
.twc-m--a li{margin:4px 0}
.twc-m--a li::marker{color:var(--twc-dim)}
.twc-m--a a{color:inherit;text-decoration:underline;text-decoration-color:rgba(255,255,255,.35);text-underline-offset:3px;transition:text-decoration-color .3s}
.twc-m--a a:hover{text-decoration-color:var(--twc-blue)}
.twc-m--a strong{font-weight:500;color:#fff}
.twc-m--sys{align-self:flex-start;font-size:13px;color:var(--twc-dim);padding-left:2px}
.twc-fig{margin:12px 0 2px;border:1px solid var(--twc-line);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.04)}
.twc-fig img{display:block;width:100%;height:auto;max-height:260px;object-fit:cover;opacity:0;transition:opacity .6s ease}
.twc-fig img.on{opacity:1}
.twc-fig figcaption{padding:8px 12px;font-family:var(--twc-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--twc-dim)}
.twc-caret{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--twc-blue);box-shadow:0 0 10px rgba(0,125,255,.8);margin-left:7px;vertical-align:middle;animation:twcBreathe 1.1s ease-in-out infinite}
.twc-wait{display:flex;align-items:center;gap:10px;height:26px;padding-left:4px}
.twc-wait .twc-led{animation-duration:1.2s;width:8px;height:8px}
.twc-vote{display:flex;gap:16px;margin:-6px 0 0 3px;font-family:var(--twc-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--twc-dim);opacity:.6;transition:opacity .3s}
.twc-vote:hover{opacity:1}
.twc .twc-vote button{letter-spacing:inherit;text-transform:inherit;transition:color .3s}
.twc .twc-vote button:hover,.twc .twc-vote button.on{color:var(--twc-paper)}
.twc-vote span{color:var(--twc-paper)}

/* 邮箱卡片（可关的留邮箱插件） */
.twc-card{position:relative;align-self:stretch;border:1px solid var(--twc-line);border-radius:18px;padding:16px 16px 14px;background:linear-gradient(180deg,rgba(0,125,255,.08),rgba(255,255,255,.02));animation:twcIn .5s var(--twc-ease) both}
.twc-card h4{margin:0 28px 0 0;font-size:15px;font-weight:500;letter-spacing:-.01em}
.twc-card p{margin:4px 0 12px;font-size:13px;color:var(--twc-dim);line-height:1.45}
.twc-card form{display:flex;gap:8px}
.twc-card input{flex:1;min-width:0;height:40px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:0 12px;color:var(--twc-paper);font:400 14px var(--twc-font);outline:0;transition:border-color .3s}
.twc-card input:focus{border-color:rgba(255,255,255,.4)}
.twc-card input::placeholder{color:var(--twc-dim)}
.twc .twc-card .twc-go{height:40px;padding:0 15px;border-radius:12px;background:var(--twc-paper);color:#111;font:500 11px var(--twc-mono);letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;transition:transform .3s var(--twc-ease)}
.twc .twc-card .twc-go:hover{transform:scale(1.03)}
.twc .twc-card .twc-go:disabled{opacity:.5}
.twc .twc-card .twc-x{position:absolute;right:8px;top:8px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;opacity:.5}
.twc .twc-card .twc-x:hover{opacity:1;background:rgba(255,255,255,.08)}
.twc-card .twc-x svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round}
.twc-card .twc-err{color:#ff8a8a;font-size:12px;margin:8px 0 0}
.twc-m--a .twc-card{margin:12px 0 4px;animation:none}
.twc-card--done p{margin-bottom:0}

/* 底部：建议问题 + 输入框 */
.twc-foot{position:relative;padding:0 16px 14px}
.twc-sugs{display:grid;margin:2px 0 0;border-top:1px solid var(--twc-line);animation:twcIn .6s var(--twc-ease) both}
.twc .twc-sug{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 2px;border-bottom:1px solid var(--twc-line);font-size:14.5px;line-height:1.3;text-align:left;color:rgba(236,234,228,.82);transition:color .3s,padding .4s var(--twc-ease)}
.twc .twc-sug i{width:12px;height:12px;border-right:1.2px solid currentColor;border-top:1.2px solid currentColor;transform:rotate(45deg) scale(.7);flex:none;opacity:.5;transition:transform .4s var(--twc-ease),opacity .3s}
.twc .twc-sug:hover{color:#fff;padding-left:6px}
.twc .twc-sug:hover i{opacity:1;transform:rotate(45deg) scale(.7) translate(2px,-2px)}
.twc-composer{display:flex;align-items:flex-end;gap:8px;border:1px solid rgba(255,255,255,.14);border-radius:21px;background:rgba(255,255,255,.045);padding:5px 5px 5px 16px;transition:border-color .3s,background .3s}
.twc-composer:focus-within{border-color:rgba(255,255,255,.36);background:rgba(255,255,255,.06)}
.twc-composer textarea{flex:1;resize:none;background:none;border:0;outline:0;color:var(--twc-paper);font:400 15px/1.5 var(--twc-font);padding:8px 0;min-height:38px;max-height:132px;letter-spacing:-.004em}
.twc-composer textarea::placeholder{color:var(--twc-dim)}
.twc .twc-send{width:38px;height:38px;border-radius:50%;background:var(--twc-paper);color:#111;display:grid;place-items:center;flex:none;transition:transform .35s var(--twc-ease),opacity .3s}
.twc .twc-send:disabled{opacity:.28;cursor:default}
.twc .twc-send:not(:disabled):hover{transform:scale(1.07)}
.twc-send svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.twc-note{margin:10px 4px 0;text-align:center;font-size:11px;line-height:1.4;color:var(--twc-dim)}
.twc-note a{color:inherit;text-decoration:underline;text-underline-offset:2px}

/* ---------- 手机：整屏 ---------- */
@media (max-width:640px){
  .twc-panel{right:0;bottom:0;width:100vw;height:100dvh;border-radius:0;border:0;transform-origin:50% 100%;transform:translateY(24px)}
  .twc-head{padding-top:calc(14px + env(safe-area-inset-top))}
  .twc-foot{padding-bottom:calc(12px + env(safe-area-inset-bottom))}
  .twc-pill{right:16px;bottom:calc(16px + env(safe-area-inset-bottom))}
  .twc-teaser{right:16px;bottom:calc(76px + env(safe-area-inset-bottom))}
  .twc-m{font-size:16px}
  .twc-composer textarea{font-size:16px}
}
html.twc-lock,html.twc-lock body{overflow:hidden}

/* ---------- 内嵌模式（后台试聊） ---------- */
.twc[data-mode="inline"] .twc-pill{display:none}
.twc[data-mode="inline"] .twc-panel{position:relative;right:auto;bottom:auto;width:100%;height:100%;opacity:1;transform:none;pointer-events:auto;visibility:visible;border-radius:22px;transition:none}
.twc[data-mode="inline"] .twc-ib[data-act="close"]{display:none}

@media (prefers-reduced-motion:reduce){.twc *{animation:none!important;transition:none!important}.twc-led,.twc-caret{opacity:1}}