.tchat-forum-module{--kv-bg: var(--wpt-bg);--kv-bg-soft: var(--wpt-bg-secondary);--kv-border-subtle: var(--wpt-divider);--kv-border-strong: var(--wpt-border);--kv-text-main: var(--wpt-text);--kv-text-muted: var(--wpt-text-secondary);--kv-accent: var(--wpt-accent);--kv-accent-soft: rgba(255, 56, 92, .08);--kv-radius-lg: var(--wpt-radius-lg);--kv-radius-md: var(--wpt-radius-md);--kv-radius-pill: var(--wpt-radius-full);--kv-shadow-soft: var(--wpt-shadow-card);--kv-shadow-subtle: var(--wpt-shadow-sm);--kv-gap: var(--wpt-sp-4);--kv-font-small: var(--wpt-fs-sm);--kv-font-tiny: var(--wpt-fs-xs);--kv-line-tight: var(--wpt-lh-tight)}.tchat-forum-module.kv-messages{background:var(--kv-bg);border-radius:var(--kv-radius-lg);box-shadow:var(--kv-shadow-soft);padding:var(--wpt-sp-4);color:var(--kv-text-main);font-family:var(--wpt-font);line-height:var(--wpt-lh-normal);display:flex;flex-direction:column;gap:var(--wpt-sp-4)}.tchat-forum-module .kv-messages__header{display:flex;flex-direction:column;gap:var(--wpt-sp-2);border-bottom:1px solid var(--kv-border-subtle);padding-bottom:var(--wpt-sp-3)}.tchat-forum-module .kv-messages__header-main{display:flex;flex-direction:column;gap:var(--wpt-sp-1)}.tchat-forum-module .kv-messages__title{font-size:var(--wpt-fs-xl);font-weight:var(--wpt-fw-bold);margin:0}.tchat-forum-module .kv-messages__subtitle{margin:0;font-size:var(--kv-font-small);color:var(--kv-text-muted)}.tchat-forum-module .kv-messages__body{display:flex;flex-direction:column;gap:var(--wpt-sp-3)}.tchat-forum-module .kv-messages__sidebar{border-radius:var(--kv-radius-md);background:var(--kv-bg-soft);border:1px solid var(--kv-border-subtle)}.tchat-forum-module .kv-messages__sidebar-inner{display:flex;flex-direction:column;height:100%}.tchat-forum-module .kv-messages__filters{display:flex;gap:var(--wpt-sp-2);padding:var(--wpt-sp-2);border-bottom:1px solid var(--kv-border-subtle);overflow-x:auto}.tchat-forum-module .kv-messages__filter{border:none;background:transparent;border-radius:var(--kv-radius-pill);padding:6px 10px;font-size:var(--kv-font-small);color:var(--kv-text-muted);white-space:nowrap;cursor:pointer;transition:background-color var(--wpt-ease),color var(--wpt-ease)}.tchat-forum-module .kv-messages__filter:hover{background:var(--wpt-gray-100)}.tchat-forum-module .kv-messages__filter--active{background:var(--kv-accent-soft);color:var(--kv-accent);font-weight:var(--wpt-fw-semi)}.tchat-forum-module .kv-messages__threads{padding:var(--wpt-sp-1);display:flex;flex-direction:column;gap:var(--wpt-sp-1);max-height:420px;overflow-y:auto}.tchat-forum-module .kv-messages__threads::-webkit-scrollbar,.tchat-forum-module .kv-thread__messages::-webkit-scrollbar{width:6px}.tchat-forum-module .kv-messages__threads::-webkit-scrollbar-thumb,.tchat-forum-module .kv-thread__messages::-webkit-scrollbar-thumb{background:var(--wpt-gray-400);border-radius:var(--wpt-radius-full)}.tchat-forum-module .kv-messages__empty{padding:var(--wpt-sp-3) var(--wpt-sp-3);font-size:var(--kv-font-small);color:var(--kv-text-muted)}.tchat-forum-module .kv-thread-preview{width:100%;border:none;padding:15px;border-radius:25px;display:flex;gap:var(--wpt-sp-3);align-items:flex-start;background:#fff;cursor:pointer;text-align:left;transition:background-color var(--wpt-ease),box-shadow var(--wpt-ease)}.tchat-forum-module .kv-thread-preview:hover{background:var(--wpt-gray-100)}.tchat-forum-module .kv-thread-preview--active{background:var(--wpt-white);box-shadow:var(--kv-shadow-subtle)}.tchat-forum-module .kv-thread-preview__avatar{flex:0 0 36px}.tchat-forum-module .kv-thread-preview__avatar-inner{display:inline-flex;width:46px;height:46px;border-radius:var(--wpt-radius-full);overflow:hidden;align-items:center;justify-content:center;background:var(--wpt-gray-200);font-size:var(--wpt-fs-base);font-weight:var(--wpt-fw-semi);color:var(--wpt-text-secondary)}.tchat-forum-module .kv-thread-preview__avatar-inner img{width:100%;height:100%;object-fit:cover}.tchat-forum-module .kv-thread-preview__avatar-inner--placeholder{background:#ff385c14;color:var(--wpt-accent)}.tchat-forum-module .kv-thread-preview__content{flex:1 1 auto;min-width:0}.tchat-forum-module .kv-thread-preview__row{display:flex;align-items:baseline;justify-content:space-between;gap:var(--wpt-sp-2)}.tchat-forum-module .kv-thread-preview__name{font-size:var(--wpt-fs-sm);font-weight:var(--wpt-fw-semi);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tchat-forum-module .kv-thread-preview__time{font-size:var(--kv-font-tiny);color:var(--kv-text-muted);white-space:nowrap}.tchat-forum-module .kv-thread-preview__sub{font-size:var(--kv-font-tiny);color:var(--kv-text-muted);margin-top:1px}.tchat-forum-module .kv-thread-preview__preview{margin-top:var(--wpt-sp-2);font-size:var(--kv-font-tiny);color:var(--wpt-text-muted);opacity:.9;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tchat-forum-module .kv-thread-preview__badge{flex:0 0 auto;align-self:center;width:10px;height:10px;border-radius:var(--wpt-radius-full);background:var(--wpt-success)}.tchat-forum-module .kv-messages__main{border-radius:var(--kv-radius-md);border:1px solid var(--kv-border-subtle);background:var(--wpt-white);min-height:260px;display:flex}.tchat-forum-module .kv-messages__main-inner{flex:1;display:flex;flex-direction:column}.tchat-forum-module .kv-messages__empty--detail{flex:1;display:flex;flex-direction:column;justify-content:center;padding:var(--wpt-sp-6);text-align:center}.tchat-forum-module .kv-messages__empty-title{margin:0 0 6px;font-size:var(--wpt-fs-base);font-weight:var(--wpt-fw-semi)}.tchat-forum-module .kv-messages__empty-text{margin:0;font-size:var(--kv-font-small);color:var(--kv-text-muted)}.tchat-forum-module .kv-thread__header{padding:var(--wpt-sp-3) var(--wpt-sp-4);border-bottom:1px solid var(--kv-border-subtle);display:flex;align-items:center;justify-content:space-between;gap:var(--wpt-sp-3)}.tchat-forum-module .kv-thread__vendor{display:flex;align-items:center;gap:var(--wpt-sp-3)}.tchat-forum-module .kv-thread__vendor-avatar{flex:0 0 40px}.tchat-forum-module .kv-thread__vendor-avatar-inner{display:inline-flex;width:40px;height:40px;border-radius:var(--wpt-radius-full);overflow:hidden;align-items:center;justify-content:center;background:var(--wpt-gray-200);color:var(--wpt-text-secondary);font-weight:var(--wpt-fw-semi)}.tchat-forum-module .kv-thread__vendor-avatar-inner img{width:100%;height:100%;object-fit:cover}.tchat-forum-module .kv-thread__vendor-avatar-inner--placeholder{background:#ff385c14;color:var(--wpt-accent)}.tchat-forum-module .kv-thread__vendor-meta{display:flex;flex-direction:column;gap:2px}.tchat-forum-module .kv-thread__vendor-name{font-size:var(--wpt-fs-base);font-weight:var(--wpt-fw-semi)}.tchat-forum-module .kv-thread__vendor-sub{font-size:var(--kv-font-tiny);color:var(--kv-text-muted)}.tchat-forum-module .kv-thread__actions{flex:0 0 auto}.tchat-forum-module .kv-thread__action-link{font-size:var(--kv-font-tiny);padding:5px 10px;border-radius:var(--kv-radius-pill);border:1px solid var(--kv-border-subtle);color:var(--kv-text-main);text-decoration:none;background:var(--wpt-bg-secondary);transition:background-color var(--wpt-ease),border-color var(--wpt-ease)}.tchat-forum-module .kv-thread__action-link:hover{background:var(--wpt-gray-200);border-color:var(--kv-border-strong)}.tchat-forum-module .kv-thread__messages{flex:1;padding:var(--wpt-sp-3) var(--wpt-sp-4);overflow-y:auto;display:flex;flex-direction:column;gap:var(--wpt-sp-2)}.tchat-forum-module .kv-thread__loading{font-size:var(--kv-font-small);color:var(--kv-text-muted)}.tchat-forum-module .kv-msg{max-width:80%}.tchat-forum-module .kv-msg--me{align-self:flex-end;text-align:right}.tchat-forum-module .kv-msg--me .kv-msg__bubble{background:var(--kv-accent);color:var(--wpt-white);border-radius:var(--wpt-radius-lg) var(--wpt-sp-1) var(--wpt-radius-lg) var(--wpt-radius-lg);padding:var(--wpt-sp-2) var(--wpt-sp-3);font-size:var(--wpt-fs-sm);box-shadow:var(--kv-shadow-subtle)}.tchat-forum-module .kv-msg--them{align-self:flex-start}.tchat-forum-module .kv-msg--them .kv-msg__bubble{background:var(--wpt-bg-secondary);color:var(--kv-text-main);border-radius:var(--wpt-sp-1) var(--wpt-radius-lg) var(--wpt-radius-lg) var(--wpt-radius-lg);padding:var(--wpt-sp-2) var(--wpt-sp-3);font-size:var(--wpt-fs-sm);box-shadow:var(--kv-shadow-subtle)}.tchat-forum-module .kv-msg__meta{margin-top:3px;font-size:var(--kv-font-tiny);color:var(--kv-text-muted)}.tchat-forum-module .kv-msg--system{align-self:center;max-width:100%}.tchat-forum-module .kv-msg__system{font-size:var(--kv-font-tiny);color:var(--kv-text-muted);background:var(--wpt-gray-200);border-radius:var(--kv-radius-pill);padding:var(--wpt-sp-1) var(--wpt-sp-3)}.tchat-forum-module .kv-thread__composer{border-top:1px solid var(--kv-border-subtle);padding:var(--wpt-sp-2) var(--wpt-sp-3);background:var(--wpt-bg-secondary)}.tchat-forum-module .kv-thread__composer-form{display:flex;flex-direction:column;gap:6px}.tchat-forum-module .kv-thread__composer-label{display:none}.tchat-forum-module .kv-thread__composer-input{width:100%;border-radius:var(--wpt-radius-full);padding:var(--wpt-sp-2) var(--wpt-sp-3);border:1px solid var(--kv-border-subtle);font-size:var(--wpt-fs-sm);font-family:var(--wpt-font);resize:none;min-height:40px;max-height:120px;outline:none;transition:border-color var(--wpt-ease),box-shadow var(--wpt-ease);background:var(--wpt-white)}.tchat-forum-module .kv-thread__composer-input:focus{border-color:var(--wpt-accent);box-shadow:0 0 0 2px #ff385c26}.tchat-forum-module .kv-thread__composer-actions{display:flex;justify-content:flex-end;margin-top:2px}.tchat-forum-module .kv-thread__composer-submit{border:none;border-radius:var(--kv-radius-pill);padding:6px 14px;font-size:var(--kv-font-small);font-weight:var(--wpt-fw-semi);cursor:pointer;background:var(--kv-accent);color:var(--wpt-white);box-shadow:var(--kv-shadow-subtle);transition:background-color var(--wpt-ease),box-shadow var(--wpt-ease)}.tchat-forum-module .kv-thread__composer-submit:hover{background:var(--wpt-accent-dark)}.tchat-forum-module .kv-thread__composer-submit:active{box-shadow:none}.tchat-forum-module .kv-thread__composer-form.is-sending .kv-thread__composer-submit{opacity:.7;cursor:progress}@media (min-width: 900px){.tchat-forum-module.kv-messages{padding:var(--wpt-sp-6)}.tchat-forum-module .kv-messages__header{flex-direction:row;align-items:center;justify-content:space-between}.tchat-forum-module .kv-messages__body{flex-direction:row;min-height:360px}.tchat-forum-module .kv-messages__sidebar{flex:0 0 32%}.tchat-forum-module .kv-messages__main{flex:1 1 auto}}@media (max-width: 899px){.tchat-forum-module .kv-messages__body{gap:var(--wpt-sp-3)}.tchat-forum-module .kv-messages__sidebar{max-height:260px;overflow:hidden}}@media (max-width: 767px){.tchat-forum-module.kv-messages{padding:0;border-radius:0;box-shadow:none;height:100vh;height:100svh;overflow:hidden}.tchat-forum-module #tcf-main-content{flex:1;display:flex;flex-direction:column;min-height:0}.tchat-forum-module .kv-messages__header{padding:var(--wpt-sp-3) var(--wpt-sp-4) var(--wpt-sp-2);border-bottom:none}.tchat-forum-module .kv-messages__subtitle,.tchat-forum-module .kv-messages__header-meta{display:none}.tchat-forum-module .kv-messages__body{position:relative;flex:1;overflow:hidden;gap:0}.tchat-forum-module .kv-messages__sidebar{position:absolute;inset:0;max-height:none;overflow-y:auto;border-radius:0;border:none;z-index:1;transform:translate(0);transition:transform .3s cubic-bezier(.4,0,.2,1),opacity .3s cubic-bezier(.4,0,.2,1)}.tchat-forum-module .kv-messages__threads{max-height:none;flex:1}.tchat-forum-module .kv-messages__main{position:absolute;inset:0;border-radius:0;border:none;z-index:2;transform:translate(100%);transition:transform .3s cubic-bezier(.4,0,.2,1)}.tchat-forum-module.tcf-mobile-detail-open .kv-messages__sidebar{transform:translate(-30%);opacity:.5;pointer-events:none}.tchat-forum-module.tcf-mobile-detail-open .kv-messages__main{transform:translate(0)}.tchat-forum-module.tcf-mobile-detail-open .kv-messages__header{display:none}.tchat-forum-module .kv-thread__header{padding:40px 10px 20px;background:var(--wpt-white);position:sticky;top:0;z-index:3}.tchat-forum-module .kv-thread__back-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:50%;background:var(--wpt-gray-100);color:var(--kv-text-main);cursor:pointer;flex-shrink:0;margin-right:var(--wpt-sp-2);transition:background-color .15s ease}.tchat-forum-module .kv-thread__back-btn:active{background:var(--wpt-gray-200);transform:scale(.95)}.tchat-forum-module .kv-thread__messages{padding-bottom:var(--wpt-sp-2)}.tchat-forum-module .kv-thread__composer{flex-shrink:0;padding:var(--wpt-sp-2) var(--wpt-sp-3);background:var(--wpt-white);border-top:1px solid var(--kv-border-subtle)}}@media (min-width: 768px){.tchat-forum-module .kv-thread__back-btn{display:none}}.tchat-forum-module .kv-filter-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 6px;margin-left:6px;border-radius:var(--wpt-radius-full);background:var(--wpt-gray-200);font-size:11px;font-weight:var(--wpt-fw-bold)}.tchat-forum-module .kv-thread-preview__sub{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.tchat-forum-module .kv-thread-preview__sep{opacity:.55;font-weight:var(--wpt-fw-bold)}.tchat-forum-module .kv-thread-preview__pill{display:inline-flex;align-items:center;gap:6px;padding:2px 8px;border-radius:var(--wpt-radius-full);font-size:11px;font-weight:var(--wpt-fw-bold);line-height:var(--wpt-lh-tight);border:1px solid var(--wpt-divider)}.tchat-forum-module .kv-thread-preview__pill--waiting{background:#fff7ed;color:#9a3412;border-color:#9a34122e}.tchat-forum-module .kv-thread-preview__pill--answered{background:#ecfdf5;color:#065f46;border-color:#065f462e}.tchat-forum-module .kv-thread-preview__badge{width:auto;min-width:18px;height:18px;padding:0 6px;border-radius:var(--wpt-radius-full);background:var(--wpt-accent);color:var(--wpt-white);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:900;line-height:1}.tchat-forum-module .kv-thread-preview__badge span{transform:translateY(-.5px)}@keyframes kvBadgePop{0%{transform:scale(.85)}to{transform:scale(1)}}.tchat-forum-module .kv-thread-preview--unread .kv-thread-preview__badge{animation:kvBadgePop .22s ease-out}.tchat-forum-module .kv-msg--me .kv-msg__meta{color:#ffffffc7}.tchat-forum-module .kv-msg--me .kv-msg__meta-row{justify-content:flex-end}.tchat-forum-module .kv-msg__meta-row{display:flex;align-items:center;gap:var(--wpt-sp-2);margin-top:3px}@keyframes kvSpin{to{transform:rotate(360deg)}}.tchat-forum-module .kv-spinner{width:10px;height:10px;border-radius:var(--wpt-radius-full);border:2px solid rgba(255,255,255,.45);border-top-color:var(--wpt-white);display:inline-block;vertical-align:-2px;animation:kvSpin .8s linear infinite}.tchat-forum-module .kv-msg--pending .kv-msg__bubble{opacity:.82}.tchat-forum-module .kv-msg--failed.kv-msg--me .kv-msg__bubble{background:#fee2e2;color:#7f1d1d;border:1px solid rgba(185,28,28,.25);box-shadow:none}.tchat-forum-module 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sans-serif);font-size:1rem;font-weight:600;color:#4c4c6d;letter-spacing:.02em}.tcf-loader-bar-bg{width:180px;height:5px;background:#0000000f;border-radius:99px;overflow:hidden}.tcf-loader-bar-fill{width:0%;height:100%;border-radius:99px;background:linear-gradient(90deg,#615eff,#a855f7,#ec4899);background-size:200% 100%;animation:tcfLoaderProgress 2s ease-out forwards,tcfLoaderShimmer 1.2s linear infinite}@keyframes tcfLoaderPulse{0%,to{transform:scale(1);opacity:.85}50%{transform:scale(1.12);opacity:1}}@keyframes tcfLoaderProgress{0%{width:0%}60%{width:70%}to{width:100%}}@keyframes tcfLoaderShimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes kvShimmer{to{transform:translate(100%)}}.tchat-forum-module .kv-skeleton-thread{display:flex;gap:var(--wpt-sp-3, 12px);align-items:flex-start;padding:var(--wpt-sp-2, 8px)}.tchat-forum-module .kv-skeleton-circle{width:36px;height:36px;border-radius:50%;background:var(--wpt-gray-200, #e5e7eb);flex-shrink:0;position:relative;overflow:hidden}.tchat-forum-module .kv-skeleton-line{height:10px;border-radius:6px;background:var(--wpt-gray-200, #e5e7eb);position:relative;overflow:hidden}.tchat-forum-module .kv-skeleton-circle:after,.tchat-forum-module .kv-skeleton-line:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);transform:translate(-100%);animation:kvShimmer 1.5s infinite}.tchat-forum-module .kv-skeleton-line--w60{width:60%}.tchat-forum-module .kv-skeleton-line--w40{width:40%}.tchat-forum-module .kv-skeleton-line--w80{width:80%}.tchat-forum-module .kv-skeleton-lines{flex:1;display:flex;flex-direction:column;gap:8px}.tchat-forum-module .kv-skeleton-bubble{padding:14px 18px;border-radius:18px;background:var(--wpt-gray-100, #f1f5f9);position:relative;overflow:hidden;max-width:70%;display:flex;flex-direction:column;gap:6px}.tchat-forum-module .kv-skeleton-bubble:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);transform:translate(-100%);animation:kvShimmer 1.5s infinite}.tchat-forum-module .kv-skeleton-bubble--left{align-self:flex-start}.tchat-forum-module .kv-skeleton-bubble--right{align-self:flex-end}@keyframes kvMsgEntrance{0%{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.tchat-forum-module .kv-msg{animation:kvMsgEntrance .3s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--msg-i, 0) * 40ms)}@keyframes kvMsgSentPop{0%{opacity:0;transform:translate(20px) scale(.92)}50%{transform:translate(-2px) scale(1.02)}to{opacity:1;transform:translate(0) scale(1)}}.tchat-forum-module .kv-msg--me.kv-msg--just-sent{animation-name:kvMsgSentPop;animation-duration:.35s}.tchat-forum-module .kv-date-separator{animation:kvMsgEntrance .3s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--msg-i, 0) * 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