:root{--navy:#002050;--orange:#f86000;--orange-soft:#fff4ed;--ink:#11233f;--muted:#6b7c91;--line:#dce4ed;--surface:#fff;--page:#f4f7fa;--ai:#f1f5fb;--admin:#fff4ed;--danger:#b42318}
[hidden]{display:none!important}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:"Space Grotesk",sans-serif;color:var(--ink);background:var(--page)}
button,input,textarea{font:inherit}
.support-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96)}
.support-header-inner{display:flex;align-items:center;gap:12px;width:min(1180px,calc(100% - 28px));height:68px;margin:auto}
.back-link{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);border-radius:6px;color:var(--navy);text-decoration:none}
.brand{display:flex;align-items:center;gap:9px;min-width:0;color:var(--navy);text-decoration:none}
.brand img{width:40px;height:40px;border:1px solid var(--line);border-radius:7px;object-fit:cover}
.brand span,.brand b,.brand small{display:block}
.brand b{font-size:18px;line-height:1}
.brand b i{color:var(--orange);font-style:normal}
.brand small{margin-top:5px;color:var(--muted);font-size:10px;font-weight:600}
.session-state{display:flex;align-items:center;gap:7px;margin-left:auto;color:var(--muted);font-size:11px;font-weight:700}
.session-state i{font-size:7px;color:#94a3b8}
.session-state.online i{color:#16a34a}
.support-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:18px;width:min(1180px,calc(100% - 28px));height:calc(100dvh - 92px);min-height:580px;margin:12px auto}
.support-info{display:flex;flex-direction:column;gap:12px;min-height:0;overflow:auto}
.intro-card,.product-context,.quick-card,.chat-shell{border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.intro-card{padding:20px}
.eyebrow{display:block;color:var(--orange);font-size:9px;font-weight:700;letter-spacing:.12em}
.intro-card h1{margin:7px 0 8px;color:var(--navy);font-size:23px;line-height:1.15;letter-spacing:-.035em}
.intro-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}
.service-points{display:grid;gap:8px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.service-points span{display:flex;align-items:center;gap:8px;color:var(--navy);font-size:11px;font-weight:600}
.service-points i{width:18px;color:var(--orange);text-align:center}
.product-context,.quick-card{padding:14px}
.section-label{display:flex;align-items:center;gap:7px;color:var(--navy);font-size:11px;font-weight:700}
.section-label i{color:var(--orange)}
.product-loading{display:flex;align-items:center;gap:8px;padding:18px 2px 8px;color:var(--muted);font-size:11px}
.product-card{display:grid;grid-template-columns:66px minmax(0,1fr);gap:10px;margin-top:11px;padding:9px;border:1px solid var(--line);border-radius:6px}
.product-card img{width:66px;height:78px;border-radius:4px;background:#eef2f6;object-fit:cover}
.product-card div{min-width:0}
.product-card b,.product-card span,.product-card strong{display:block}
.product-card b{display:-webkit-box;overflow:hidden;color:var(--navy);font-size:11px;line-height:1.35;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.product-card span{margin-top:5px;overflow:hidden;color:var(--muted);font-size:9px;text-overflow:ellipsis;white-space:nowrap}
.product-card strong{margin-top:7px;color:var(--orange);font-size:12px}
.product-open{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:8px;padding:9px;border:1px solid var(--navy);border-radius:5px;color:var(--navy);font-size:10px;font-weight:700;text-decoration:none}
.quick-list{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:11px}
.quick-list button{display:flex;align-items:center;gap:7px;min-height:42px;padding:8px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--navy);font-size:9px;font-weight:700;text-align:left;cursor:pointer}
.quick-list button:hover{border-color:var(--orange);background:var(--orange-soft)}
.quick-list i{color:var(--orange)}
.chat-shell{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto auto auto;min-width:0;min-height:0;overflow:hidden}
.chat-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
.assistant-avatar{position:relative;display:grid;place-items:center;width:40px;height:40px;border-radius:6px;background:var(--navy);color:#fff}
.assistant-avatar span{position:absolute;right:-2px;bottom:-2px;width:10px;height:10px;border:2px solid #fff;border-radius:50%;background:#16a34a}
.chat-head div:nth-child(2){min-width:0}
.chat-head b,.chat-head span{display:block}
.chat-head b{color:var(--navy);font-size:13px}
.chat-head div:nth-child(2)>span{margin-top:3px;color:var(--muted);font-size:9px;font-weight:600}
.scroll-latest{display:grid;place-items:center;width:34px;height:34px;margin-left:auto;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--navy);cursor:pointer}
.messages{display:flex;flex-direction:column;gap:10px;min-height:0;padding:18px;overflow:auto;overscroll-behavior:contain;background:#f8fafc}
.welcome-message{display:flex;align-items:flex-start;gap:10px;width:min(520px,90%);padding:13px;border:1px solid var(--line);border-radius:7px;background:#fff}
.welcome-message>span{display:grid;place-items:center;width:32px;height:32px;min-width:32px;border-radius:5px;background:var(--navy);color:#fff}
.welcome-message b,.welcome-message p{display:block;margin:0}
.welcome-message b{font-size:11px}
.welcome-message p{margin-top:4px;color:var(--muted);font-size:10px;line-height:1.5}
.message{align-self:flex-start;width:fit-content;max-width:min(74%,680px)}
.message.user{align-self:flex-end}
.message-body{padding:10px 12px;border:1px solid var(--line);border-radius:7px 7px 7px 2px;background:var(--ai)}
.message.user .message-body{border-color:#ffc5a3;border-radius:7px 7px 2px 7px;background:var(--orange-soft)}
.message.admin .message-body{border-color:#b9c9dc;background:#fff}
.message.system .message-body{background:#eef2f6}
.message-meta{display:flex;align-items:center;gap:6px;margin-bottom:5px;color:var(--muted);font-size:8px;font-weight:700}
.message.admin .message-meta{color:var(--navy)}
.message p{margin:0;font-size:11px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}
.message time{display:block;margin-top:5px;color:#8795a8;font-size:8px;text-align:right}
.typing{display:flex;align-items:center;gap:4px;padding:8px 18px;border-top:1px solid var(--line);background:#fff}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--orange);animation:pulse 1s infinite}
.typing span:nth-child(2){animation-delay:.14s}
.typing span:nth-child(3){animation-delay:.28s}
.typing b{margin-left:5px;color:var(--muted);font-size:9px}
.send-error{margin:0 14px 8px;padding:8px 10px;border:1px solid #f3b4ae;border-radius:5px;background:#fff1f0;color:var(--danger);font-size:9px;font-weight:600}
.answer-actions{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:8px;padding:10px 14px;border-top:1px solid var(--line);background:#fff}
.answer-actions div{min-width:0}.answer-actions b,.answer-actions span{display:block}.answer-actions b{color:var(--navy);font-size:10px}.answer-actions span{margin-top:2px;color:var(--muted);font-size:8px}
.answer-actions button,.closed-actions button{display:flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:8px 11px;border-radius:5px;background:#fff;font-size:9px;font-weight:700;cursor:pointer}
.answer-actions .helpful{border:1px solid #86d6a5;color:#08783d}.answer-actions .operator{border:1px solid #ffb080;color:#c2410c}
.closed-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-top:1px solid var(--line);background:#f8fafc;color:var(--muted);font-size:9px;font-weight:700}.closed-actions button{border:1px solid var(--navy);color:var(--navy)}
.composer{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:8px;padding:12px 14px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fff}
.composer textarea{width:100%;max-height:120px;min-height:44px;padding:12px;border:1px solid var(--line);border-radius:6px;outline:none;resize:none;color:var(--ink);font-size:11px;line-height:1.45}
.composer textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(248,96,0,.1)}
.composer button{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:6px;background:var(--orange);color:#fff;cursor:pointer}
.composer button:disabled,.composer textarea:disabled{cursor:not-allowed;opacity:.55}
.composer small{grid-column:1/-1;color:var(--muted);font-size:8px}
.toast{position:fixed;right:18px;bottom:18px;z-index:40;max-width:340px;padding:11px 13px;border-radius:6px;background:var(--navy);color:#fff;font-size:10px;font-weight:600}
@keyframes pulse{0%,80%,100%{opacity:.3;transform:scale(.75)}
40%{opacity:1;transform:scale(1)}
}
@media(max-width:820px){.support-layout{grid-template-columns:1fr;height:auto;min-height:calc(100dvh - 80px)}
.support-info{overflow:visible}
.intro-card{display:none}
.quick-card{order:2}
.chat-shell{min-height:calc(100dvh - 96px);max-height:calc(100dvh - 86px);order:1}
.product-context{order:0}
.support-info:has(.product-context:not([hidden]))+.chat-shell{min-height:72dvh}
.messages{min-height:310px}
.quick-list{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){.support-header-inner,.support-layout{width:100%}
.support-header-inner{height:60px;padding:0 10px}
.session-state span{display:none}
.support-layout{gap:0;margin:0}
.support-info{gap:0}
.product-context,.quick-card,.chat-shell{border-right:0;border-left:0;border-radius:0}
.product-context,.quick-card{border-top:0}
.chat-shell{height:calc(100dvh - 60px);min-height:calc(100dvh - 60px);max-height:none;border-top:0}
.support-info:has(.product-context:not([hidden]))+.chat-shell{height:78dvh;min-height:560px}
.messages{padding:14px 10px}
.message{max-width:86%}
.chat-head{padding:10px}
.composer{padding:9px 10px calc(9px + env(safe-area-inset-bottom))}
.answer-actions{grid-template-columns:1fr 1fr;padding:9px 10px}.answer-actions div{grid-column:1/-1}.answer-actions button{width:100%}
.quick-card{padding-bottom:calc(14px + env(safe-area-inset-bottom))}
}

@media(max-width:820px){.support-info{display:contents}
}

/* Embedded support modal: keep the chat focused and avoid page-within-page chrome. */
.support-embedded body{background:#fff}
.support-embedded .support-header{position:sticky;top:0}
@media(min-width:821px){
  .support-embedded .support-layout{width:calc(100% - 24px);height:calc(100dvh - 92px);margin:12px}
}
@media(max-width:520px){
  .support-embedded .support-header-inner{padding-left:10px;padding-right:10px}
}