/* 十三 C3-2 · 文字房：方案C「清透校园」。严格限制在文字房视图内；不更改数据与消息权限。 */
.sc .sc-live-status{justify-self:start;border:1px solid #d6e0d0;border-radius:999px;background:#ecf2e9;color:#527765;padding:5px 11px;font-size:11px}
.sc[data-study-view="studyTextRoom"] .sc-chat-shell{--chat-ink:#365c54;--chat-line:#d7e3da;--chat-mist:#e7f0eb;display:grid;grid-template-columns:minmax(0,1fr);gap:13px;min-width:0;color:var(--chat-ink)}
.sc[data-study-view="studyTextRoom"] .sc-chat-about{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,280px);align-items:center;gap:17px;padding:19px 21px;border:1px solid #d8e3dc;border-radius:17px;background:linear-gradient(116deg,rgba(250,252,247,.98),rgba(229,241,235,.76));min-width:0;box-shadow:0 5px 14px rgba(65,99,83,.04)}
.sc[data-study-view="studyTextRoom"] .sc-chat-about-copy{display:grid;align-content:center;gap:6px;min-width:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-about .sc-section-small{font:700 10px/1.4 Georgia,serif;color:#72978a;letter-spacing:.16em}
.sc[data-study-view="studyTextRoom"] .sc-chat-about h2{font:700 clamp(18px,1.65vw,23px)/1.5 var(--serif,'Noto Serif SC',serif);color:#315e53;margin:0;overflow-wrap:anywhere}
.sc[data-study-view="studyTextRoom"] .sc-chat-about p{font-size:12px;line-height:1.75;color:#698079;margin:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-guidance{display:flex;gap:9px;align-items:flex-start;border-left:1px solid #cadfd3;padding:7px 2px 7px 15px;min-width:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-guidance>span{font:27px/1 Georgia,serif;color:#9cbaa7}
.sc[data-study-view="studyTextRoom"] .sc-chat-guidance strong{font-size:12px;line-height:1.4;color:#477267}
.sc[data-study-view="studyTextRoom"] .sc-chat-guidance p{margin:5px 0 0;font-size:11px}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;min-width:0;padding:2px 3px}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-title{display:flex;align-items:center;gap:9px;flex-wrap:wrap;min-width:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-title-mark{display:block;width:12px;height:12px;border:3px solid #d0e4da;background:#719c8d;border-radius:50%}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-title strong{color:#40695e;font:700 14px/1.5 var(--serif,serif)}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-title small{color:#83978d;font-size:10.5px}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-width:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-actions .btn{min-height:32px;border-color:#cbded4;background:#fffefa;color:#527d6e}
.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-actions .btn:hover{background:#eaf4ed}
.sc[data-study-view="studyTextRoom"] .sc-chat-history{height:clamp(305px,48vh,515px);min-height:0;min-width:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#a7c5b5 transparent;display:flex;flex-direction:column;gap:13px;padding:22px 22px 25px;border:1px solid #d6e2d8;border-radius:18px;background-color:#f7f9f2;background-image:radial-gradient(ellipse at 12% 7%,rgba(217,232,226,.65),transparent 45%),linear-gradient(145deg,rgba(250,250,244,.94),rgba(245,249,242,.86)),repeating-linear-gradient(to bottom,transparent 0,transparent 37px,rgba(153,183,165,.09) 38px);box-shadow:inset 0 2px 12px rgba(81,103,80,.025)}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry{position:relative;display:grid;gap:9px;align-self:flex-start;width:max-content;max-width:min(83%,710px);min-width:0;padding:13px 16px;background:rgba(255,254,251,.98);border:1px solid #d8e3d7;border-radius:4px 17px 17px 17px;box-shadow:0 5px 14px rgba(54,86,67,.05);overflow-wrap:anywhere}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry.is-mine{align-self:flex-end;border-radius:17px 4px 17px 17px;background:#e5f1e9;border-color:#bcd7c8}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry-head{display:flex;align-items:center;column-gap:8px;row-gap:4px;min-width:0;flex-wrap:wrap}
.sc[data-study-view="studyTextRoom"] .sc-chat-avatar{width:21px;height:21px;flex:0 0 21px;border:1px solid #bfd6c7;border-radius:7px 7px 7px 2px;background:linear-gradient(145deg,#d5e9db,#b5d1bd);position:relative}
.sc[data-study-view="studyTextRoom"] .sc-chat-avatar::after{content:"";position:absolute;inset:5px;border:1px solid rgba(67,108,99,.6);border-radius:50% 50% 35% 35%}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry.is-mine .sc-chat-avatar{background:linear-gradient(145deg,#8db3a1,#6f9986);border-color:#7cac99}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry.is-mine .sc-chat-avatar::after{border-color:#e4f0e7}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry-head strong{flex:0 1 auto;min-width:0;font-size:12px;color:#3d7162;overflow-wrap:anywhere;unicode-bidi:plaintext}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry-head time{flex:0 0 auto;margin-inline-start:auto;white-space:nowrap;color:#899c90;font-size:10.5px;line-height:1.5;font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry p{display:block;max-width:100%;margin:0;white-space:pre-wrap;font:400 14px/1.95 'Noto Naskh Arabic','Noto Sans Arabic','Noto Sans CJK SC',sans-serif;color:#324f46;overflow-wrap:anywhere;word-break:normal;unicode-bidi:plaintext;text-align:start}
.sc[data-study-view="studyTextRoom"] .sc-chat-entry-actions{display:flex;justify-content:flex-end;border-top:1px dashed rgba(120,158,135,.25);padding-top:6px}
.sc[data-study-view="studyTextRoom"] .sc-chat-acts{display:inline-flex;align-items:center;gap:12px;margin-left:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-acts .ss-link{color:#628c7c;font-size:11px;text-decoration:underline;text-underline-offset:3px}
.sc[data-study-view="studyTextRoom"] .sc-chat-acts .ss-link:hover{color:#285f50}
.sc[data-study-view="studyTextRoom"] .sc-chat-empty{display:grid;place-items:center;align-content:center;min-height:144px;margin:auto;padding:24px 14px;color:#718d7e;text-align:center;font-size:13px;line-height:1.9}
.sc[data-study-view="studyTextRoom"] .sc-chat-empty::before{content:"✧";display:block;font:33px/1.3 Georgia,serif;color:#a5c3b3;margin-bottom:6px}
.sc[data-study-view="studyTextRoom"] .sc-chat-status{display:grid;gap:5px;color:#718a7e;font-size:11px;line-height:1.7;min-width:0}
.sc[data-study-view="studyTextRoom"] .sc-chat-status small{font-size:11px}
.sc[data-study-view="studyTextRoom"] .sc-chat-connection{display:flex;align-items:flex-start;gap:8px;line-height:1.65}
.sc[data-study-view="studyTextRoom"] .sc-chat-connection-light{flex:0 0 7px;width:7px;height:7px;border-radius:50%;margin-top:.5em;background:#9bbba9;box-shadow:0 0 0 3px #e4efe7}
.sc[data-study-view="studyTextRoom"] .sc-chat-error{margin:0;padding:10px 13px;border:1px solid #e5b5a8;background:#fff2ea;color:#915646;border-radius:10px;font-size:12px}
.sc[data-study-view="studyTextRoom"] .sc-chat-notice{margin:0;padding:9px 12px;border:1px solid #d5e4d4;background:#eff7ed;color:#4f795e;border-radius:10px;font-size:12px}
.sc[data-study-view="studyTextRoom"] [data-ss="notice"]:empty{display:none}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose{display:grid;gap:11px;min-width:0;padding:17px 19px;background:linear-gradient(180deg,#fffefa,#f4f7f0);border:1px solid #d7e4d7;border-radius:16px;box-shadow:0 5px 15px rgba(70,87,67,.04)}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;flex-wrap:wrap}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose label{font-size:14px;font-weight:750;color:#3c695e}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose-head span{font-size:10.5px;color:#89988d}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose textarea{width:100%;max-width:100%;min-height:95px;resize:vertical;border:1px solid #cbded2;border-radius:11px;padding:12px 14px;background:rgba(255,255,252,.98);color:#304e43;box-sizing:border-box;font:400 14px/1.85 'Noto Naskh Arabic','Noto Sans Arabic','Noto Sans CJK SC',sans-serif;unicode-bidi:plaintext;outline-offset:2px;box-shadow:inset 0 1px 3px rgba(58,99,74,.03)}
.sc[data-study-view="studyTextRoom"] .sc-chat-compose textarea:focus{border-color:#709e87;outline:2px solid #cce3d6}
.sc[data-study-view="studyTextRoom"] .sc-chat-send-foot{display:flex;align-items:center;justify-content:space-between;gap:13px;flex-wrap:wrap}
.sc[data-study-view="studyTextRoom"] .sc-chat-send-foot small{font-size:11px;line-height:1.65;color:#7d9184;max-width:65ch}
.sc[data-study-view="studyTextRoom"] .sc-chat-send-foot .btn{flex:0 0 auto;margin-left:auto;background:#5c8978;color:white;border-color:#5c8978;min-width:114px}
.sc[data-study-view="studyTextRoom"] .sc-chat-send-foot .btn:not(:disabled):hover{background:#477968}
@media(max-width:780px){.sc[data-study-view="studyTextRoom"] .sc-chat-about{grid-template-columns:1fr;gap:10px;padding:15px}.sc[data-study-view="studyTextRoom"] .sc-chat-guidance{border-left:0;border-top:1px solid #d0e2d6;padding:10px 0 0}.sc[data-study-view="studyTextRoom"] .sc-chat-history{height:clamp(260px,38vh,390px);padding:14px}.sc[data-study-view="studyTextRoom"] .sc-chat-entry{max-width:91%;padding:11px 12px}}
@media(max-width:480px){.sc[data-study-view="studyTextRoom"] .sc-chat-history{padding:12px 9px;gap:10px;min-height:265px}.sc[data-study-view="studyTextRoom"] .sc-chat-entry{max-width:96%;padding:10px 11px}.sc[data-study-view="studyTextRoom"] .sc-chat-entry-head time{font-size:9.5px}.sc[data-study-view="studyTextRoom"] .sc-chat-toolbar-title small{display:none}.sc[data-study-view="studyTextRoom"] .sc-chat-compose{padding:13px 12px}.sc[data-study-view="studyTextRoom"] .sc-chat-send-foot .btn{width:100%}.sc[data-study-view="studyTextRoom"] .sc-chat-compose textarea{min-height:105px}}
@media(prefers-reduced-motion:reduce){.sc[data-study-view="studyTextRoom"] .sc-chat-history{scroll-behavior:auto}}
/* 浏览器层隐藏属性优先于按钮呈现规则，防止无旧游标时误显示“查看更早的消息”。 */
.sc[data-study-view="studyTextRoom"] [data-study-action="chat-more"][hidden]{display:none!important}