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.page-heading{display:flex;align-items:center;justify-content:space-between;margin:3px 0 28px}.page-heading h1{font-size:38px;line-height:1.5;margin-bottom:10px}.page-heading p{font-size:12px;margin-bottom:0}.page-heading .eyebrow{font-size:9px;margin-bottom:17px}.round-mark{font:55px var(--serif);border:1px solid #d8decb;color:#b5bea5;width:105px;height:105px;border-radius:50%;display:grid;place-items:center;margin-right:22px}.search-bar{display:flex;gap:10px;background:var(--white);border:1px solid #cbd5bf;padding:7px;border-radius:7px}.search-bar input{min-width:0;flex:1;background:transparent;border:0;outline:none;padding:5px 12px;font-size:12px}.concept-filters{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.concept-chip{background:transparent;border:1px solid #dce2d3;border-radius:20px;padding:7px 12px;color:#859179;font-size:11px}.concept-chip.active{background:var(--green);color:#f1f4e9;border-color:var(--green)}.concept-description{font-size:12px;border-left:2px solid #b8c4a9;padding:3px 15px;margin-bottom:23px;color:#75846c}.concept-description p{margin-bottom:5px}.concept-description small{font-size:10px;color:#8d977f}.library-layout{display:grid;grid-template-columns:225px 1fr;gap:28px;margin-top:27px}.chapter-list{display:grid;gap:6px;max-height:65vh;overflow:auto;padding-right:5px}.chapter-row{background:transparent;border:1px solid transparent;border-radius:6px;text-align:left;padding:12px;display:flex;flex-direction:column;gap:7px;min-width:0}.chapter-row strong{font-size:12px;font-weight:500;display:flex;align-items:center;gap:10px}.chapter-row strong span{color:#a7b097;font-size:10px}.chapter-row>span{color:#909b85;font:11px var(--serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chapter-row.active{background:#e9eee0;border-color:#dce4cf}.chapter-row:hover{background:#edf1e6}.chapter-reader{align-self:start;background:var(--white);border:1px solid var(--line);padding:28px 31px;border-radius:8px;position:sticky;top:22px}.reader-kicker{display:flex;justify-content:space-between;gap:8px;color:#9aab88;font-size:9px;letter-spacing:1px}.chapter-reader h2{font:31px var(--serif);margin:23px 0 24px}.original-text{font:22px/2.2 var(--serif);letter-spacing:1px;white-space:pre-wrap}.reader-concepts{display:flex;flex-wrap:wrap;gap:7px;margin:23px 0}.reader-footer{border-top:1px solid var(--line);padding-top:17px;display:flex;justify-content:space-between;gap:10px;font-size:10px}.reader-license{font-size:9px;color:#98a08b;line-height:1.8;margin:17px 0 0}.reader-navigation{display:flex;justify-content:space-between;margin-top:22px}.reader-navigation button{font-size:11px;background:transparent;color:#7c8d6d;padding:5px 0}.empty-state{padding:25px;border:1px dashed #d8dece;color:#8a977c;line-height:1.9;border-radius:7px;font-size:12px}
.evaluation-note{border-left:2px solid #c5b28e;color:#948165;font-size:12px;padding:2px 17px;line-height:1.9;margin-bottom:25px}.panel{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:22px}.compare-form{display:flex;flex-direction:column;gap:11px}.compare-form>label{font-size:11px;color:#829172}.compare-form>select,.compare-form>textarea,.feedback-form select,.feedback-form textarea{background:#f8f9f3;border:1px solid #dce3d1;border-radius:5px;color:var(--ink);padding:10px 12px;line-height:1.7;width:100%;min-width:0;resize:vertical}.compare-form>label:not(:first-child){margin-top:7px}.compare-form p{font-size:10px;margin:0}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.comparison-arm{min-width:0;border:1px solid var(--line);border-radius:8px;padding:20px;background:#fdfdf8}.comparison-arm>.arm-heading{font-family:var(--serif);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:20px}.arm-heading strong{font-size:23px;font-weight:500}.arm-heading span{color:#8b9980;font-size:10px}.comparison-arm .answer{margin:0}.comparison-arm .answer-header{display:none}.comparison-arm .answer-summary{font-size:18px}.comparison-arm .frame-grid{grid-template-columns:1fr}.comparison-arm .frame-card,.comparison-arm .evidence-card{padding:12px}.comparison-arm .options{font-size:10px}.comparison-arm .options th,.comparison-arm .options td{padding:9px 5px}.comparison-arm .evidence-card blockquote{font-size:15px}.comparison-arm .interpretation{padding:13px}.feedback-form{margin-top:23px;background:#eef2e5}.feedback-form h2{font:23px var(--serif);margin-bottom:10px}.score-table{width:100%;border-collapse:collapse;margin:15px 0;font-size:11px;table-layout:fixed}.score-table th{text-align:left;color:#7c8c6f;font-weight:400;padding:9px 7px}.score-table td{padding:7px}.score-table th:first-child{width:40%}.score-table select{padding:7px;font-size:10px}.feedback-form label{display:block;font-size:11px;color:#7b8e6b;margin:13px 0 8px}.feedback-form textarea{font-size:12px}.feedback-form .primary-button{margin-top:18px}.reveal-box{background:#e1ead5;border:1px solid #d1dfbf;border-radius:6px;padding:15px;margin-top:15px;font-size:12px;line-height:1.9}.evaluation-footer{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);margin-top:32px;padding-top:23px}.evaluation-footer h2{font:21px var(--serif);margin-bottom:10px}.evaluation-footer p{font-size:11px;margin:0}.evaluation-footer>div:last-child{display:flex;gap:18px;align-items:center;white-space:nowrap}
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@media(min-width:1450px){main{padding-left:8%;padding-right:8%}.view{padding-top:50px}.welcome h1{font-size:49px}.suggestion{padding:24px 20px}.welcome-notes{margin-bottom:40px}.editorial-note{margin-top:34px;margin-bottom:27px}}
@media(max-width:1080px){.sidebar{width:200px;padding:27px 15px 17px}.app-main{margin-left:200px}main{padding:0 5%}.welcome h1{font-size:39px}.suggestion{padding:16px 12px}.suggestion strong{font-size:12px}.suggestion>span:last-of-type{font-size:9px}.welcome-notes{gap:14px;font-size:9px}.library-layout{grid-template-columns:170px 1fr;gap:18px}.chapter-reader{padding:23px}.original-text{font-size:20px}.compare-grid{gap:12px}.comparison-arm{padding:14px}.evaluation-footer{align-items:flex-start;flex-direction:column}.mode-control{gap:7px}}
@media(max-width:760px){.sidebar{position:sticky;top:0;width:100%;height:auto;display:block;padding:13px 18px 0;border-right:0;border-bottom:1px solid var(--line);background:#f0f2e9f7;backdrop-filter:blur(10px)}.brand{min-height:38px;margin-bottom:10px;padding:0 3px;max-width:210px;font-size:34px;letter-spacing:4px}.sidebar nav{display:flex;gap:7px}.nav-item{justify-content:center;font-size:11px;padding:10px 6px;gap:6px;margin:0 0 8px}.nav-item>span{font-size:16px;width:auto}.nav-item small{margin-left:0;font-size:8px;padding:1px 3px}.history-heading,.history-list,.sidebar-bottom{display:none}.app-main{margin-left:0}.topbar{height:50px;padding:0 21px;font-size:10px}.topbar-actions{gap:15px}.topbar .text-button{font-size:10px}.source-button{font-size:9px;padding:6px 8px}#export-history{display:none}#mobile-history{display:block}main{padding:0 21px;min-height:calc(100vh - 220px)}.view{padding-top:29px}.eyebrow{font-size:9px;letter-spacing:1.7px;margin-bottom:17px}.welcome h1{font-size:36px;line-height:1.5;margin-bottom:14px}.hero-subtitle{font-size:11px;line-height:1.9;margin-bottom:20px}.desktop-break{display:none}.welcome-notes{gap:12px;flex-wrap:wrap;font-size:8px;margin-bottom:29px;row-gap:8px}.suggestion-grid{gap:8px;grid-template-columns:1fr}.suggestion{display:grid;grid-template-columns:24px 1fr;column-gap:10px;row-gap:6px;padding:13px 15px}.suggestion-icon{grid-row:1/3;margin:0;align-self:center;font-size:23px}.suggestion strong{font-size:12px;margin:0}.suggestion>span:last-of-type{font-size:9px}.suggestion i{top:18px;right:17px;font-size:12px}.section-kicker{font-size:9px;margin-bottom:10px}.editorial-note{margin:23px 0 18px;padding-top:17px;gap:12px}.note-number{font-size:8px}.editorial-note p{font-size:15px}.editorial-note p small{font-size:8px;line-height:1.5}.editorial-note>button{font-size:9px}.composer{padding:13px 13px 10px}.composer textarea{font-size:12px;min-height:68px}.mode-control select{font-size:9px;padding:6px 4px;max-width:145px}.mode-control .small{font-size:8px}.primary-button{font-size:11px;padding:10px 12px}.primary-button span{font-size:14px;margin-left:6px}.composer-caption{font-size:8px;line-height:1.8}.app-footer{font-size:8px;padding:20px 21px;gap:10px}.user-message{max-width:95%;font-size:12px;padding:13px 15px}.answer-header{margin-bottom:15px}.answer-summary{font-size:21px}.summary-text{font-size:12px}.frame-grid{gap:9px}.frame-card{padding:13px}.frame-card p{font-size:11px}.options{font-size:10px}.options th,.options td{padding:10px 6px}.interpretation{padding:15px}.interpretation p{font-size:11px}.evidence-card{padding:14px}.evidence-card blockquote{font-size:18px}.evidence-card header{font-size:9px}.page-heading{margin-bottom:25px}.page-heading h1{font-size:32px}.page-heading p{font-size:11px}.round-mark{width:70px;height:70px;font-size:36px;margin:0}.page-heading .eyebrow{font-size:8px;letter-spacing:1.1px}.search-bar input{padding:5px 7px;font-size:11px}.concept-filters{gap:6px;margin:16px 0}.concept-chip{font-size:10px;padding:6px 10px}.library-layout{grid-template-columns:1fr;margin-top:21px;gap:19px}.chapter-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;max-height:205px;padding:0}.chapter-row{padding:9px 5px;gap:5px}.chapter-row strong{font-size:10px;gap:5px}.chapter-row strong span{font-size:8px}.chapter-row>span{font-size:8px}.chapter-reader{position:static;padding:23px 20px}.chapter-reader h2{font-size:28px;margin:20px 0}.original-text{font-size:21px;line-height:2.1;letter-spacing:.5px}.reader-footer{font-size:9px}.reader-license{font-size:8px}.compare-form{padding:17px;gap:9px}.compare-form>select,.compare-form>textarea{font-size:11px;padding:9px}.compare-form .composer-bottom{flex-wrap:wrap}.compare-form .composer-bottom select{font-size:9px}.compare-grid{grid-template-columns:1fr;gap:20px}.comparison-arm{padding:19px}.comparison-arm .frame-grid{grid-template-columns:1fr 1fr}.comparison-arm .answer-summary{font-size:20px}.comparison-arm .evidence-card blockquote{font-size:17px}.panel{padding:17px}.evaluation-note{font-size:11px;padding-left:13px}.evaluation-footer h2{font-size:22px}.score-table th:first-child{width:43%}.score-table td{padding:6px 3px}.score-table th{padding:7px 3px}.score-table select{font-size:9px;padding:6px 3px}.toast{left:50%;font-size:11px;width:max-content;max-width:88vw}dialog{padding:29px 23px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Keep the composer visible; only the reading/conversation area scrolls. */
html,body{height:100%;overflow:hidden}body{height:100dvh}.app-main{height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden}.topbar{flex:0 0 77px}main{flex:1;min-height:0;width:100%;overflow-y:auto;overscroll-behavior:contain}.app-footer{width:100%;flex:none}#ask-view{height:100%;min-height:0;display:flex;flex-direction:column;overflow:hidden;padding-bottom:0}.welcome,.conversation{width:100%;min-height:0;flex:1;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}.welcome{margin-bottom:0;padding-right:8px}.conversation{margin-bottom:0;padding-right:8px}.composer-wrap{width:100%;flex:none;margin-top:16px;padding-bottom:5px}.composer{padding-top:13px}.composer textarea{min-height:52px;max-height:min(160px,22dvh)}.composer-caption{margin-top:8px}.sidebar nav{display:flex;flex-direction:column;gap:6px}.nav-item{height:50px;min-height:50px;margin:0;padding:0 12px;line-height:1.2;flex:none}.nav-item>span{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;line-height:1;flex:0 0 20px}.nav-icon svg{width:18px;height:18px}
@media(max-width:760px){body{display:flex;flex-direction:column}.sidebar{position:relative;flex:none}.app-main{height:auto;flex:1;min-height:0}.topbar{flex-basis:50px}.sidebar nav{flex-direction:row;gap:7px}.nav-item{width:auto;min-width:0;flex:1;height:40px;min-height:40px;padding:0 6px;margin-bottom:8px}.nav-item>span{width:16px;height:16px;flex-basis:16px;line-height:1}.nav-icon svg{width:16px;height:16px}#ask-view{padding-top:20px}.composer-wrap{margin-top:12px}.composer textarea{min-height:56px;max-height:20dvh}.composer-caption{font-size:8px}.app-footer{padding-top:10px;padding-bottom:10px}}

@media(min-width:761px) and (max-height:800px){#ask-view{padding-top:20px}.welcome h1{font-size:30px;line-height:1.22;margin-bottom:8px}.welcome .eyebrow{margin-bottom:8px;font-size:9px}.hero-subtitle{font-size:12px;line-height:1.5;margin-bottom:10px}.welcome-notes{margin-bottom:14px;font-size:9px}.welcome .section-kicker{margin-bottom:8px}.suggestion{padding:14px}.suggestion-icon{font-size:20px;margin-bottom:8px}.suggestion strong{margin-bottom:7px}.editorial-note{margin-top:16px;padding-top:12px}}

.model-label{display:inline-block;background:#f0f2eb;border:1px solid var(--line);font-size:11px;color:#6d7b69;border-radius:5px;padding:7px 10px}

.brand img{display:block;width:140px;height:auto;max-width:100%;object-fit:contain}@media(max-width:760px){.brand img{width:94px}}

.history-row{display:flex;align-items:center;gap:3px;border-radius:5px}.history-row.active{background:#e1e7dc}.history-row .history-item{flex:1;min-width:0;width:0}.history-delete{display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;min-height:36px;background:transparent;color:#859180;border-radius:5px}.history-delete:hover,.history-delete:focus-visible{background:#f3e6df;color:#9c5946}.history-delete svg{display:block}#toast{pointer-events:none;display:flex;align-items:center;gap:18px}.undo-conversation-delete{background:transparent;color:inherit;border-left:1px solid #ffffff50;padding:5px 0 5px 14px;font-size:12px;white-space:nowrap}@media(max-width:760px){.history-delete{flex-basis:44px;min-height:44px}.undo-conversation-delete{min-height:36px}}

#toast.visible{pointer-events:auto}.history-delete-feedback{display:flex;gap:12px;align-items:center}.history-delete-feedback .undo-conversation-delete{color:var(--green);border-left:0;text-decoration:underline;padding:4px;font-size:12px}

.supportive-answer{font-size:15px;line-height:1.95;color:#344b41}.supportive-answer p{font-size:inherit;line-height:inherit;margin:0 0 17px}.supportive-answer h3{font-family:var(--serif);font-size:20px;font-weight:500;color:var(--green);line-height:1.6;margin:27px 0 12px}.supportive-answer strong{font-weight:600;color:var(--green)}.supportive-answer ul{margin:10px 0 20px;padding-left:1.4em}.supportive-answer li{padding-left:3px;margin-bottom:8px}.supportive-quote{margin:12px 0 18px;padding:4px 0 4px 16px;border-left:2px solid #c4d0bc;color:#50654e}.supportive-quote p{margin:0 0 4px;font-family:var(--serif);font-size:17px}.supportive-quote cite{font-size:11px;font-style:normal;color:#8a9582}.supportive-closing{margin-top:25px}.supportive-section{margin:0}@media(max-width:760px){.supportive-answer{font-size:14px;line-height:1.9}.supportive-answer h3{font-size:18px;margin-top:23px}.supportive-quote p{font-size:16px}.supportive-quote{padding-left:12px}}

/* 圆角横向输入框，首页与示例内容作为一组居中。 */
#ask-form.composer{display:flex;align-items:center;gap:14px;padding:7px 8px 7px 20px;border-radius:36px;background:#fcfbf9;border:1px solid #deded8;box-shadow:0 5px 16px #263a2e14}
#ask-form .model-label{background:none;border:0;border-right:1px solid #cbd2c8;border-radius:0;padding:0 14px 0 0;color:#818888;font-size:13px;white-space:nowrap}
#ask-form textarea{flex:1;min-width:0;min-height:24px;max-height:120px;height:auto;field-sizing:content;padding:1px 0;resize:none;line-height:1.6;font-size:13px;overflow-y:auto}
#ask-form #ask-submit{flex:none;border-radius:26px;padding:10px 25px;font-size:14px}
#ask-view:has(#welcome:not(.hidden)){justify-content:center}
#ask-view:has(#welcome:not(.hidden)) .welcome{flex:0 1 auto;max-height:calc(100% - 100px);margin-top:0}
#ask-view:has(#welcome:not(.hidden)) .composer-wrap{margin:20px auto 0;padding-bottom:12px}
@media(max-width:760px){#ask-form.composer{gap:8px;padding:6px 6px 6px 12px}#ask-form .model-label{font-size:11px;padding-right:8px}#ask-form textarea{font-size:12px}#ask-form #ask-submit{padding:9px 14px;font-size:12px}#ask-view:has(#welcome:not(.hidden)) .composer-wrap{margin-top:12px}}

/* 首页输入框的中心与可用页面区域的中心对齐。 */
#ask-view:has(#welcome:not(.hidden)){position:relative;justify-content:flex-start}
#ask-view:has(#welcome:not(.hidden)) .welcome{flex:none;height:calc(50% - 45px);max-height:none;margin:0 auto;overflow-y:auto}
#ask-view:has(#welcome:not(.hidden)) .composer-wrap{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;margin:0;padding:0}
@media(max-width:760px){#ask-view:has(#welcome:not(.hidden)){padding-top:10px}#ask-view:has(#welcome:not(.hidden)) .welcome h1{font-size:28px;line-height:1.25;margin-bottom:8px}#ask-view:has(#welcome:not(.hidden)) .suggestion-grid{gap:5px}#ask-view:has(#welcome:not(.hidden)) .suggestion{padding:8px 12px;row-gap:3px}#ask-view:has(#welcome:not(.hidden)) .section-kicker{margin-bottom:6px}}

/* 首页：标题、输入框和文字示例依次排列。 */
#ask-view:has(#welcome:not(.hidden)){justify-content:center;position:relative}
#ask-view:has(#welcome:not(.hidden)) .welcome{height:auto;max-height:none;overflow:visible;flex:none;margin:0 auto}
#ask-view:has(#welcome:not(.hidden)) .welcome h1{text-align:center;white-space:nowrap;font-size:clamp(23px,3vw,38px);line-height:1.35;margin:0 0 24px;letter-spacing:0}
#ask-view:has(#welcome:not(.hidden)) .composer-wrap{position:static;transform:none;width:100%;margin:0 auto;padding:0}
#home-suggestions{width:100%;max-width:850px;margin:20px auto 0;flex:none}
#home-suggestions .suggestion-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
#home-suggestions .suggestion{display:block;min-width:0;padding:6px;background:transparent;border:0;border-radius:0;text-align:center;box-shadow:none;transform:none}
#home-suggestions .suggestion:hover strong{text-decoration:underline;text-underline-offset:4px}
#home-suggestions .suggestion strong{font-size:13px;margin:0 0 6px}
#home-suggestions .suggestion span{font-size:10px;color:var(--muted)}
@media(max-width:760px){#ask-view:has(#welcome:not(.hidden)) .welcome h1{font-size:clamp(19px,5.3vw,28px);margin-bottom:20px}#home-suggestions{margin-top:14px}#home-suggestions .suggestion-grid{grid-template-columns:1fr;gap:2px}#home-suggestions .suggestion{padding:7px 2px}#home-suggestions .suggestion strong{display:inline;margin:0;font-size:12px}#home-suggestions .suggestion span{margin-left:8px;font-size:10px}}

/* 去掉顶部栏，首页输入框始终对齐内容区的垂直中心。 */
.topbar{display:none}
#ask-view:has(#welcome:not(.hidden)){display:grid;grid-template-rows:minmax(0,1fr) auto minmax(0,1fr);padding-top:0}
#ask-view:has(#welcome:not(.hidden)) .welcome{grid-row:1;align-self:end}
#ask-view:has(#welcome:not(.hidden)) .composer-wrap{grid-row:2;align-self:center}
#ask-view:has(#welcome:not(.hidden)) #home-suggestions{grid-row:3;align-self:start}
@media(max-width:760px){.sidebar #mobile-history{display:block;position:absolute;right:19px;top:20px;padding:8px;font-size:12px}#ask-view:has(#welcome:not(.hidden)){padding-top:0}}

/* 输入框加长，窄屏仍按容器宽度显示。 */
.composer-wrap{max-width:1120px}
#ask-view:has(#welcome:not(.hidden)){grid-template-columns:minmax(0,1fr)}
#ask-view:has(#welcome:not(.hidden)) .welcome,#home-suggestions{max-width:473px}
#ask-view .composer-wrap,#ask-view:has(#welcome:not(.hidden)) .composer-wrap{width:80%;max-width:896px}
.sidebar .history-item{font-size:14px}
.reply-avatar{display:block;width:44px;height:44px;object-fit:cover;border-radius:50%;margin:0 0 16px}
#access-form{display:flex;flex-direction:column;gap:14px}#access-form h2,#access-form p{margin:0}#access-form input{padding:10px;border:1px solid #cbd5bf;border-radius:5px;background:#fff}

/* Mobile layout and navigation drawer; desktop layout stays unchanged. */
.mobile-header,.mobile-menu-backdrop{display:none}
@media(min-width:761px){#ask-view .welcome h1{font-family:'Microsoft YaHei','微软雅黑',sans-serif}}
@media(max-width:760px){
  body{background:#f8f8f3}
  .mobile-header{height:66px;padding:8px 20px;display:grid;grid-template-columns:40px 1fr 40px;align-items:center;position:relative;z-index:2}
  .mobile-header-button{width:40px;height:40px;display:grid;place-items:center;background:transparent;color:#21493e;padding:8px}
  .mobile-header-button svg{width:24px;height:24px}
  .mobile-brand{justify-self:center;display:block;width:90px;line-height:0}
  .mobile-brand img{display:block;width:100%;height:auto}
  .mobile-menu-backdrop{display:block;position:fixed;inset:0;z-index:20;background:rgba(12,25,21,.55);opacity:0;visibility:hidden;transition:opacity .2s; padding:0}
  .sidebar{position:fixed;z-index:21;inset:0 auto 0 0;display:flex;flex-direction:column;width:min(80vw,330px);height:100dvh;overflow:auto;padding:35px 20px 24px;border:0;background:#f7f8f2;transform:translateX(-100%);visibility:hidden;transition:transform .2s,visibility .2s;backdrop-filter:none}
  body.mobile-menu-open{overflow:hidden}
  body.mobile-menu-open .mobile-menu-backdrop{opacity:1;visibility:visible}
  body.mobile-menu-open .sidebar{transform:translateX(0);visibility:visible}
  .sidebar .brand{display:block;width:100px;max-width:none;min-height:0;margin:0 0 32px;padding:0}
  .sidebar .brand img{width:100%;height:auto}
  .sidebar #mobile-history{display:none}
  .sidebar nav{display:block}
  .sidebar .nav-item{width:100%;min-height:50px;justify-content:flex-start;text-align:left;font-size:15px;padding:12px 14px;margin:0 0 7px;gap:12px}
  .sidebar .nav-item>span{width:22px;font-size:20px}
  .sidebar .history-heading{display:flex;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
  .sidebar .history-list{display:block;overflow:visible}
  .sidebar .history-item{font-size:14px}
  .app-main{margin:0}
  main{min-height:calc(100dvh - 66px);padding:0 20px 100px}
  #ask-view{min-height:calc(100dvh - 66px);padding-bottom:110px}
  #ask-view:has(#welcome:not(.hidden)){display:flex;flex-direction:column;justify-content:center;align-items:center;padding-top:0}
  #ask-view:has(#welcome:not(.hidden)) .welcome{align-self:center;width:100%;text-align:center}
  #ask-view:has(#welcome:not(.hidden)) .welcome h1{font-size:clamp(30px,8vw,42px);line-height:1.25;white-space:normal;margin:0 0 25px}
  #ask-view:has(#welcome:not(.hidden)) .welcome{display:none}
  #ask-view:has(#welcome:not(.hidden)) #home-suggestions{align-self:center;max-width:100%;margin:0 auto}
  #home-suggestions .suggestion-grid{display:grid;grid-template-columns:1fr;gap:13px}
  #home-suggestions .suggestion{padding:12px 18px;text-align:center;border:1px solid rgba(70,100,82,.22);border-radius:28px;background:rgba(255,255,255,.3)}
  #home-suggestions .suggestion strong{font-size:14px;font-weight:400}
  #home-suggestions .suggestion span{display:none}
  #ask-view .composer-wrap,#ask-view:has(#welcome:not(.hidden)) .composer-wrap{position:fixed;z-index:5;top:auto;transform:none;bottom:max(16px,env(safe-area-inset-bottom));left:16px;width:calc(100% - 32px);max-width:none;margin:0}
  #ask-form.composer{min-height:54px;padding:6px 6px 6px 18px;background:#fbfbf9;box-shadow:0 3px 14px #1b3c3017}
  #ask-form textarea{min-height:36px;font-size:14px}
  #ask-form #ask-submit{min-width:70px;min-height:40px;font-size:14px}
  #library-view,#evaluate-view{padding-top:25px}
}