.su-chat-page { margin: 0; min-height: 100vh; background: #f4f7fb; color: #152b49; font: 16px/1.55 system-ui, sans-serif; }
.su-chat-header { display: flex; justify-content: space-between; align-items: center; padding: 14px max(18px, calc((100vw - 940px)/2)); background: #fff; border-bottom: 1px solid #dce5f0; }
.su-chat-brand { display: inline-flex; gap: 10px; align-items: center; color: inherit; text-decoration: none; font-weight: 750; }
.su-chat-brand img { border-radius: 10px; }
.su-chat-wrap { max-width: 720px; margin: 36px auto; padding: 0 18px 40px; }
.su-chat-wrap h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.14; margin: 6px 0 12px; letter-spacing: -.035em; }
.su-chat-eyebrow { font-size: 11px; font-weight: 750; letter-spacing: .15em; color: #2858a5; }
.su-chat-card { display: block; min-width: 0; padding: 22px; margin: 16px 0; border-radius: 15px; border: 1px solid #dce5f0; background: #fff; color: #152b49; }
.su-chat-card h2 { margin: 8px 0; font-size: 21px; }
.su-chat-list .su-chat-card { display: grid; gap: 5px; text-decoration: none; }
.su-chat-list .su-chat-card:hover { border-color: #8db3ec; background: #f6faff; }
.su-chat-card small { color: #526982; }
.su-chat-link { padding: 0; border: 0; background: transparent; color: #164b9a; text-decoration: underline; font: inherit; cursor: pointer; }
.su-chat-form { display: grid; align-items: start; gap: 11px; }
.su-chat-form label { font-weight: 650; }
.su-chat-form input, .su-chat-form textarea { box-sizing: border-box; width: 100%; padding: 10px 12px; border: 1px solid #aebed2; border-radius: 9px; color: inherit; font: inherit; }
.su-chat-button { justify-self: start; padding: 11px 16px; border: 0; border-radius: 9px; background: #1554af; color: #fff; font: inherit; font-weight: 650; cursor: pointer; }
.su-chat-page :focus-visible, .su-chat-card :focus-visible { outline: 3px solid #1e61ce; outline-offset: 3px; }
.su-chat-history { display: grid; gap: 12px; padding: 0; margin: 20px 0; list-style: none; }
.su-chat-history li { max-width: 85%; padding: 12px 15px; border-radius: 12px; background: #edf2f8; overflow-wrap: anywhere; }
.su-chat-history .su-chat-own { justify-self: end; background: #e3efff; }
.su-chat-history p { margin: 5px 0; }
.su-chat-alert { border: 1px solid #f1c6b5; background: #fff1eb; color: #7b2919; padding: 12px 15px; border-radius: 9px; }
.su-chat-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 12px 0; }
@media (max-width: 500px) { .su-chat-wrap { margin-top: 25px; } .su-chat-card { padding: 16px; } }