body[data-student-messages-runtime="v1"] .student-messages-page{max-width:1440px;margin:auto;visibility:hidden}body[data-student-messages-runtime="v1"].student-messages-ready .student-messages-page{visibility:visible}body[data-student-messages-runtime="v1"] #breadcrumb-shell{display:none!important}.smr-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;padding:8px 2px 17px}.smr-kicker{color:var(--tetra-accent);font-size:9.5px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.smr-head h1{margin:7px 0 6px;color:var(--tts-text);font-size:clamp(28px,4vw,39px);letter-spacing:-.04em}.smr-head p{max-width:700px;margin:0;color:var(--tts-muted);font-size:11.5px;line-height:1.5}.smr-new{min-height:40px;padding:9px 12px;border:1px solid #7054d1;border-radius:11px;background:#7054d1;color:#fff;font:inherit;font-size:10.5px;font-weight:850}.smr-tabs{display:flex;gap:5px;margin-bottom:13px;padding:6px;overflow-x:auto;border:1px solid var(--tts-line);border-radius:15px;background:var(--tts-surface);box-shadow:var(--tts-shadow);scrollbar-width:none}.smr-tabs a{min-height:38px;display:inline-flex;align-items:center;padding:8px 12px;border:1px solid transparent;border-radius:10px;color:var(--tts-muted);font-size:10.5px;font-weight:800;text-decoration:none;white-space:nowrap}.smr-tabs a.active{border-color:rgba(146,119,232,.24);background:rgba(146,119,232,.16);color:var(--tts-text)}
.smr-kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:13px}.smr-kpi,.smr-panel{border:1px solid var(--tts-line);background:var(--tts-surface);box-shadow:var(--tts-shadow)}.smr-kpi{padding:13px 14px;border-radius:16px}.smr-kpi span{color:var(--tts-muted);font-size:9px;font-weight:850;text-transform:uppercase;letter-spacing:.05em}.smr-kpi strong{display:block;margin-top:6px;color:var(--tts-text);font-size:23px}.smr-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(330px,.9fr);gap:13px}.smr-panel{overflow:hidden;border-radius:18px}.smr-panel>header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border-bottom:1px solid var(--tts-line)}.smr-panel h2{margin:4px 0 0;color:var(--tts-text);font-size:14px}.smr-search{min-height:40px;width:min(280px,45%);padding:9px 11px;border:1px solid var(--tts-line);border-radius:11px;background:var(--tts-soft);color:var(--tts-text);font:inherit;font-size:10px}.smr-roster{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-height:650px;padding:10px;overflow:auto}.smr-student{display:flex;gap:10px;padding:11px;border:1px solid transparent;border-radius:13px;background:transparent;color:var(--tts-text);text-align:left}.smr-student:hover,.smr-student.active{border-color:rgba(146,119,232,.25);background:rgba(146,119,232,.11)}.smr-avatar{position:relative;width:42px;height:42px;display:grid;flex:0 0 auto;place-items:center;overflow:hidden;border-radius:12px;background:rgba(146,119,232,.17);font-size:10px;font-weight:900}.smr-avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.smr-student strong,.smr-student small{display:block}.smr-student strong{font-size:11px}.smr-student small{margin-top:4px;color:var(--tts-muted);font-size:9px;line-height:1.35}.smr-detail{min-height:420px;padding:15px}.smr-empty{padding:32px 18px;border:1px dashed var(--tts-line);border-radius:14px;background:var(--tts-soft);color:var(--tts-muted);font-size:10.5px;line-height:1.5;text-align:center}.smr-profile{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--tts-line)}.smr-profile .smr-avatar{width:52px;height:52px}.smr-profile h3{margin:0;color:var(--tts-text);font-size:16px}.smr-profile p{margin:5px 0 0;color:var(--tts-muted);font-size:9.5px}.smr-courses{display:flex;gap:6px;flex-wrap:wrap;margin:13px 0}.smr-chip{padding:6px 8px;border:1px solid var(--tts-line);border-radius:999px;background:var(--tts-soft);color:var(--tts-muted);font-size:8.5px}.smr-compose{display:grid;gap:9px;margin-top:14px}.smr-compose label{color:var(--tts-muted);font-size:9px;font-weight:850;text-transform:uppercase}.smr-compose select,.smr-compose textarea{padding:10px;border:1px solid var(--tts-line);border-radius:11px;background:var(--tts-soft);color:var(--tts-text);font:inherit;font-size:10.5px}.smr-compose textarea{min-height:115px;resize:vertical}.smr-send{min-height:42px;border:0;border-radius:11px;background:#7054d1;color:#fff;font:inherit;font-size:10.5px;font-weight:850}.smr-send:disabled{opacity:.5}.smr-state{min-height:16px;color:var(--tts-muted);font-size:9.5px}.smr-state.error{color:#ff9aaa}.smr-empty-thread{margin-top:10px;color:var(--tts-muted);font-size:9.5px}
:root[data-tetra-theme="light"] :is(.smr-tabs,.smr-kpi,.smr-panel){background:#fff;box-shadow:0 10px 28px rgba(31,50,76,.08)}:root[data-tetra-theme="light"] :is(.smr-search,.smr-empty,.smr-chip,.smr-compose select,.smr-compose textarea){background:#f8fafc;color:#182337}
@media(max-width:900px){.smr-layout{grid-template-columns:1fr}.smr-roster{max-height:420px}}
@media(max-width:700px){body[data-student-messages-runtime="v1"] .page-content{padding:14px 12px 92px!important}.smr-head{display:block}.smr-head p{display:none}.smr-new{width:100%;margin-top:12px}.smr-kpis{grid-template-columns:repeat(3,1fr)}.smr-roster{grid-template-columns:1fr}.smr-panel>header{display:block}.smr-search{width:100%;margin-top:10px}.smr-detail{min-height:360px}}
.smr-layout{grid-template-columns:230px 335px minmax(0,1fr)}.smr-filter-panel .smr-panel>header{display:block}.smr-filter-panel>header{display:block}.smr-filter-panel .smr-search{width:100%;margin-top:10px}.smr-roster{grid-template-columns:1fr;max-height:650px}.smr-all-icon{width:42px;height:42px;display:grid;flex:0 0 auto;place-items:center;border-radius:12px;background:rgba(77,182,255,.14);color:var(--tts-text);font-size:16px}.smr-threads{display:grid;gap:5px;max-height:650px;padding:8px;overflow:auto}.smr-thread{position:relative;width:100%;display:flex;align-items:flex-start;gap:9px;padding:10px;border:1px solid transparent;border-radius:13px;background:transparent;color:var(--tts-text);text-align:left}.smr-thread:hover,.smr-thread.active{border-color:rgba(146,119,232,.25);background:rgba(146,119,232,.11)}.smr-thread-copy{min-width:0;flex:1}.smr-thread-top{display:flex;justify-content:space-between;gap:8px}.smr-thread strong{font-size:10.5px}.smr-thread time,.smr-thread small{color:var(--tts-muted);font-size:8.5px}.smr-thread p{margin:6px 0 0;overflow:hidden;color:var(--tts-muted);font-size:9.5px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.smr-unread{min-width:19px;height:19px;display:grid;place-items:center;border-radius:999px;background:#7054d1;color:#fff;font-size:8px}.smr-start{margin:0 10px 12px;width:calc(100% - 20px)}.smr-message-list{display:grid;gap:9px;max-height:370px;margin-top:14px;padding:12px;overflow:auto;border-radius:13px;background:var(--tts-soft)}.smr-message{max-width:82%;padding:10px 11px;border:1px solid var(--tts-line);border-radius:13px;background:var(--tts-surface)}.smr-message.outgoing{justify-self:end;background:linear-gradient(135deg,#7054d1,#8b6ee8);color:#fff}.smr-message>div{display:flex;justify-content:space-between;gap:12px}.smr-message strong,.smr-message time{font-size:8.5px}.smr-message time{opacity:.7}.smr-message p{margin:7px 0 0;font-size:10.5px;line-height:1.5}.smr-conversation-panel .smr-detail{min-height:590px}.smr-conversation-panel .smr-compose{border-top:1px solid var(--tts-line);padding-top:13px}
@media(max-width:1180px){.smr-layout{grid-template-columns:210px 300px minmax(0,1fr)}}
@media(max-width:980px){.smr-layout{grid-template-columns:230px minmax(0,1fr)}.smr-conversation-panel{grid-column:1/-1}.smr-roster,.smr-threads{max-height:380px}.smr-conversation-panel .smr-detail{min-height:440px}}
@media(max-width:700px){.smr-layout{display:block}.smr-panel{margin-bottom:12px}.smr-roster{max-height:300px}.smr-threads{max-height:420px}.smr-message-list{max-height:48vh}.smr-conversation-panel .smr-detail{min-height:380px}}