/* 2026-10-12 scoped graph and related-question improvements */
.rel-question .rel-actions{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px;align-items:center;flex-direction:row}
.rel-question .rel-actions button{min-width:0;white-space:nowrap;min-height:42px}
.obs-stage{border:1px solid var(--line);border-radius:16px;background:#10131d;overflow:hidden;min-width:0}
.obs-toolbar{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.obs-toolbar>div:first-child{display:grid;gap:4px}.obs-toolbar strong{font-size:14px;color:#e6edf8}.obs-toolbar span{font-size:12px;color:#8f9caf}
.obs-stage .obs-shell{grid-template-columns:minmax(0,1fr) 260px;gap:0;align-items:stretch}
.obs-stage .obs-canvas-wrap{border:0;border-radius:0;min-width:0;background:#10131d;height:clamp(460px,68vh,800px)}
.obs-stage #obsCanvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none}
.obs-stage .obs-side{position:static;padding:20px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:18px;background:#171c28;font-size:12px;min-width:0}
.obs-side h3{font-size:15px;color:#e0e9f7}.obs-legend{display:flex;flex-wrap:wrap;gap:10px;color:#a6b2c7}
.obs-focus{padding:14px;border:1px solid #334158;border-radius:12px;background:#1d2535;min-height:130px}.obs-focus h4{margin:7px 0 9px;font-size:14px;color:#ecf1fa;line-height:1.6;overflow-wrap:anywhere}.obs-focus p{font-size:12px;color:#a6b2c7}
.obs-caption{position:absolute;bottom:16px;left:16px;color:#8e9bb1;font-size:11px;pointer-events:none}
.obs-stage:fullscreen,.obs-stage.obs-fullscreen-fallback{width:100vw;height:100dvh;border:0;border-radius:0;background:#10131d;display:flex;flex-direction:column}
.obs-stage.obs-fullscreen-fallback{position:fixed;inset:0;z-index:1000}
.obs-stage:fullscreen .obs-shell,.obs-stage.obs-fullscreen-fallback .obs-shell{flex:1;min-height:0}
.obs-stage:fullscreen .obs-canvas-wrap,.obs-stage.obs-fullscreen-fallback .obs-canvas-wrap{height:100%;min-height:0}
.obs-desktop-only{text-align:center;display:grid;justify-items:center;gap:14px;padding:36px 20px}.obs-desktop-only>span{font-size:44px;color:#9a8cff}.obs-desktop-only h2{font-size:20px}.obs-desktop-only>div{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
@media(max-width:840px){.rel-question .rel-actions{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:6px;width:100%;flex-direction:row}.rel-question .rel-actions button{font-size:12px;line-height:1.3;padding:8px 7px;white-space:nowrap}.rel-question{padding:12px 10px}.obs-desktop-only p{font-size:13px;max-width:32em}}
.obs-controls{display:flex;gap:12px;align-items:center}.obs-chapter-select{display:flex;gap:8px;align-items:center;white-space:nowrap;color:#a6b2c7;font-size:12px}.obs-chapter-select select{min-width:150px}
#app:fullscreen,#app.obs-fullscreen-fallback{display:flex;flex-direction:column;width:100vw;max-width:none;height:100dvh;margin:0;padding:12px 16px;background:#10131d;overflow:hidden}
#app.obs-fullscreen-fallback{position:fixed;inset:0;z-index:1000}
#app:fullscreen>.page-heading,#app.obs-fullscreen-fallback>.page-heading{display:none}
#app:fullscreen>.obs-chips,#app.obs-fullscreen-fallback>.obs-chips{flex-wrap:nowrap;overflow-x:auto;flex-shrink:0;margin:0 0 10px;padding-bottom:4px}
#app:fullscreen>.obs-chips button,#app.obs-fullscreen-fallback>.obs-chips button{flex-shrink:0}
#app:fullscreen>.obs-stage,#app.obs-fullscreen-fallback>.obs-stage{display:flex;flex-direction:column;flex:1;min-height:0}
#app:fullscreen .obs-shell,#app.obs-fullscreen-fallback .obs-shell{flex:1;min-height:0}
#app:fullscreen .obs-canvas-wrap,#app.obs-fullscreen-fallback .obs-canvas-wrap{height:100%;min-height:0}
/* 顶栏品牌：星府网 logo，点击回主站 */
.brand-link{background:transparent!important;box-shadow:none!important;padding:0!important;overflow:hidden;text-decoration:none;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line)}
.brand-link:hover{border-color:var(--primary)}
.brand-link img{width:100%;height:100%;object-fit:cover;display:block;border-radius:11px}
/* 做题记录（服务器保存的整轮历史） */
.history-list{max-height:340px;overflow-y:auto;display:grid;gap:8px;margin:10px 0 6px;padding-right:2px}
.history-list .history-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.06)}
.history-list .history-row b{font-size:13px}
.history-list .history-row p{font-size:11px;margin-top:2px}
.history-tags{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:560px){.history-list{max-height:300px}.history-list .history-row{flex-direction:column;align-items:flex-start}.history-tags{justify-content:flex-start}}
/* Page-owned filters and complete progress grid. */
.rel-browser{display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px;align-items:start}
.rel-side{display:grid;gap:10px;border:1px solid var(--line);border-radius:12px;padding:12px 12px 11px;background:rgba(255,255,255,.06);position:sticky;top:82px;align-self:start}
.rel-side-title{font-size:12px;color:var(--muted);font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:8px}
.rel-side-count{font-size:11px;font-weight:700;padding:1px 7px;border-radius:999px;background:rgba(255,255,255,.1);color:var(--muted);white-space:nowrap}
.rel-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:8px;max-height:min(56vh,460px);overflow-y:auto;padding-right:2px}
.rel-legend{display:flex;gap:10px;font-size:10px;color:var(--muted);align-items:center}
.rel-main{min-width:0}.rel-main .rel-question,.rel-main .rel-actions{scroll-margin-top:14px}
.rel-card-grid button{min-height:42px;min-width:40px;padding:4px 6px;font-size:14px;line-height:1;border-radius:9px;font-variant-numeric:tabular-nums}
.rel-card-grid button.current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700}
.rel-card-grid button.wrong{background:rgba(255,69,58,.12);border-color:rgba(255,69,58,.4);color:#ff453a}
.rel-card-grid button.right{background:rgba(48,209,88,.12);border-color:rgba(48,209,88,.4);color:#30d158}
.rel-card-grid button.current.wrong,.rel-card-grid button.current.right{outline:2px solid var(--primary);outline-offset:1px}
.rel-pos{font-size:11px;color:var(--muted)}
.rel-question{border:1px solid var(--line);border-radius:11px;padding:14px 16px;background:var(--paper)}
.rel-question .question-body{font-size:14px;line-height:1.85}
.rel-question .choices{gap:9px;margin-top:10px}
.rel-question .analysis{margin-top:12px;padding:14px}
@media(max-width:1200px){.rel-browser{grid-template-columns:176px minmax(0,1fr);gap:14px}.rel-card-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr))}.rel-card-grid button{min-width:38px;font-size:13px}}
@media(max-width:840px){.rel-browser{grid-template-columns:minmax(0,1fr)}.rel-side{display:grid;gap:6px}.rel-card-grid{grid-template-columns:repeat(auto-fill,minmax(42px,1fr));max-height:min(38vh,270px)}}
.browse-side-filter{display:flex;justify-content:space-between;gap:8px;margin:12px 0 10px;font-size:11px;color:var(--muted)}.browse-side-filter b{color:var(--ink)}
.legend .dot.right{background:#30d158;border-color:#30d158}.legend .dot.wrong{background:#ff453a;border-color:#ff453a}
.kp-links.related-exam{margin-top:8px;border-top-style:solid}.kp-links.related-exam button{background:rgba(255,255,255,.08)}
.chip{display:inline-block;font-size:11px;line-height:1.55;font-weight:700;border-radius:6px;padding:1px 7px;border:1px solid rgba(255,255,255,.12);background:#1c1c1e;color:rgba(255,255,255,.62);white-space:nowrap;vertical-align:baseline}
.chip.ok{background:rgba(48,209,88,.12);border-color:rgba(48,209,88,.4);color:#30d158}
.chip.bad{background:rgba(255,69,58,.12);border-color:rgba(255,69,58,.4);color:#ff453a}
.chip.warn{background:rgba(255,214,10,.10);border-color:rgba(255,214,10,.32);color:#ffd60a}
.chip.muted{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.62);font-weight:600}
.result-stats .chip{font-size:21px;padding:3px 13px;border-radius:9px;letter-spacing:.5px}
.region-metrics .chip,.progress-line .chip{font-size:10px;padding:1px 6px}
.wrong-row .chip,.weak-row .chip{margin-right:4px}
.security-banner{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:0 0 14px;padding:14px 17px;background:rgba(255,69,58,.12);border:1px solid rgba(255,69,58,.4);border-left:5px solid #ff453a;border-radius:11px;position:sticky;top:calc(var(--header-height) + 6px);z-index:60;}
.security-banner .banner-text{flex:1 1 320px;min-width:0}.security-banner strong{display:block;font-size:14px;color:#ff453a;margin-bottom:3px}.security-banner p{font-size:12px;line-height:1.7;color:#ff8a85;margin:0}.security-banner .banner-actions{display:flex;gap:8px;flex-wrap:wrap}.security-banner .banner-actions button{font-size:12px;min-height:36px;padding:6px 13px;white-space:nowrap}
.password-dialog{border:0;border-radius:14px;padding:0;box-shadow:0 2px 8px rgba(0,0,0,.35);max-width:min(94vw,420px)}.password-form{padding:22px 24px;display:grid;gap:11px;min-width:min(88vw,330px)}.password-form h2{font-size:17px}.password-form>p{font-size:12px;line-height:1.7;color:var(--muted);margin:0}.password-form label{display:grid;gap:5px;font-size:12px;color:var(--muted)}.password-form input{font-size:14px}.form-error{font-size:12px;color:#ff453a;min-height:16px;margin:0}.dialog-actions{display:flex;gap:8px;justify-content:flex-end}.generated-code{background:#1c1c1e;border:1px solid var(--line);border-radius:9px;padding:12px;text-align:center}.generated-code code{font-size:16px;letter-spacing:1px;word-break:break-all;color:var(--ink)}.code-display{font-size:13px;word-break:break-all;color:var(--ink)}
@media(max-width:840px){.security-banner{position:static;padding:12px 14px;gap:10px}.security-banner .banner-actions{width:100%}.security-banner .banner-actions button{flex:1}}
.app-sidebar #nav .nav-group{display:block;padding:2px 0 10px}.app-sidebar #nav .nav-title{display:block;font-size:11px;letter-spacing:1px;color:var(--muted);padding:8px 11px 4px}
.back-bar{display:flex;align-items:center;gap:12px;margin:0 0 10px}.back-bar .text-btn{font-size:13px;padding:4px 2px}.back-bar>span{font-size:12px;color:var(--muted);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;padding:6px 0;background:transparent;border:0}.hero-actions>button{flex:1 1 140px;min-height:0;display:flex;flex-direction:column;align-items:center;gap:2px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px 10px}.hero-actions>button:hover{border-color:var(--primary)}.hero-actions strong{font-size:22px;line-height:1.2}.hero-actions span{font-size:11px;color:var(--muted)}
.resume-actions{display:flex;gap:8px;align-items:center}.resume-actions button{white-space:nowrap}
.choices.scroll-x{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 2px 12px;scrollbar-width:thin}.choices.scroll-x::-webkit-scrollbar{height:8px}.choices.scroll-x::-webkit-scrollbar-thumb{background:rgba(255,255,255,.25);border-radius:4px}.choices.scroll-x .choice{flex:0 1 auto;width:auto;min-width:min(100%,320px);max-width:100%;scroll-snap-align:start;white-space:normal;overflow-wrap:anywhere}
.answer-card-grid button.wrong{background:rgba(255,69,58,.12);border-color:rgba(255,69,58,.4);color:#ff453a}.answer-card-grid button.right{background:rgba(48,209,88,.12);border-color:rgba(48,209,88,.4);color:#30d158}
.browse-card-grid{max-height:132px;overflow-y:auto;margin:0 0 12px}
/* 收藏本：收藏的知识卡列表（与题目并列可见） */
.fav-cards{margin:0 0 12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}
.fav-cards>summary{display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;min-height:34px;list-style:none}
.fav-cards>summary::-webkit-details-marker{display:none}
.fav-cards>summary>b{font-size:14px;color:var(--ink)}
.fav-cards>summary .muted{font-size:11px}
.fav-card-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px;margin-top:10px;max-height:260px;overflow-y:auto}
.fav-card-row{display:grid;gap:2px;text-align:left;white-space:normal;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:rgba(255,255,255,.06);min-height:0}
.fav-card-row:hover{border-color:var(--primary)}
.fav-card-row b{font-size:13px;line-height:1.5}
.fav-card-row .muted{font-size:11px;overflow:hidden;text-overflow:ellipsis}
@media(max-width:840px){.fav-card-list{grid-template-columns:1fr;max-height:220px}.fav-card-row{min-height:42px}}
.question-list-row.done{background:rgba(255,255,255,.06)}
.kp-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:12px 0 0;padding-top:10px;border-top:1px dashed var(--line)}.kp-links>span{font-size:11px;color:var(--muted)}.kp-links>small{font-size:11px;color:var(--muted)}.kp-links button{font-size:12px;min-height:32px;padding:5px 10px;white-space:normal;text-align:left}
.review-path .result-actions{margin-top:12px}
html,body{caret-color:transparent;touch-action:pan-x pan-y;-webkit-text-size-adjust:100%;text-size-adjust:100%}input,textarea,[contenteditable]:not([contenteditable="false"]),[contenteditable]:not([contenteditable="false"]) *{caret-color:var(--ink);touch-action:auto}.kp-summary,.kp-facts,.rich,.region-section,h1,h2,h3,p{-webkit-user-select:text;user-select:text}.rich [style*="font-family"]{font-family:inherit!important}
.side-context{display:none}.sidebar-backdrop{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.4);border:0;border-radius:0;width:100%;height:100%;padding:0}.sidebar-backdrop[hidden]{display:none}
.page-heading{margin-bottom:16px}.page-heading h1{margin:0}.page-heading .eyebrow{display:none}.region-section>h2{font-size:17px;margin:0 0 4px}.region-section>p{font-size:12px;color:var(--muted);margin:0 0 14px}.region-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.region-card{display:block;text-align:left;white-space:normal;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:17px;min-width:0;color:var(--ink)}.region-card:hover{border-color:var(--primary);}.region-card:focus-visible{outline:3px solid rgba(10,132,255,.45);outline-offset:2px}.region-title{display:flex;align-items:center;justify-content:space-between;gap:7px;margin-bottom:16px}.region-title h3{font-size:14px;line-height:1.5;margin:0;min-width:0}.region-status{white-space:nowrap}.region-card .progress-line{font-size:11px;gap:8px}.region-card .progress-line b{font-size:11px;min-width:48px;text-align:right}.region-metrics{display:grid;grid-template-columns:1fr 1fr;gap:9px 12px;margin-top:13px;font-size:11px;color:var(--muted)}.region-metrics>span{display:flex;justify-content:space-between;gap:5px}.region-metrics b{color:var(--ink);font-weight:600}
.knowledge-card-layout{display:grid;grid-template-columns:minmax(0,1fr) 140px;gap:22px}.kp-content{min-width:0}.kp-card .kp-state{display:flex;flex-direction:column;align-items:stretch;gap:10px;margin:10px 0 0;border:0;padding:0;position:sticky;top:82px;align-self:start}.kp-state h3{font-size:13px;margin:0 0 2px}.status-button{min-height:40px;border:1px solid transparent;border-radius:8px;font-size:13px;font-weight:600;text-align:center;box-shadow:none}.status-idle{background:rgba(255,255,255,.08);color:rgba(255,255,255,.62);border-color:rgba(255,255,255,.18)}.status-learning{background:rgba(10,132,255,.14);color:#0a84ff;border-color:rgba(10,132,255,.4)}.status-mastered{background:rgba(48,209,88,.12);color:#30d158;border-color:rgba(48,209,88,.4)}.status-review{background:rgba(255,214,10,.10);color:#ffd60a;border-color:rgba(255,214,10,.32)}.status-button[aria-pressed=true]{outline:2px solid currentColor;outline-offset:2px}.status-button:focus-visible{outline:3px solid var(--primary);outline-offset:3px}.kp-card .kp-head h2{display:block;font-size:20px;margin:0 0 5px}.kp-card .kp-head p{font-size:11px}.kp-card .kp-summary{font-size:14px;line-height:1.85}.kp-card .kp-nav{position:static;margin-top:15px}.kp-card{overflow:visible;max-height:none}.knowledge-controls{margin-bottom:12px}#chooseKnowledgeArea{max-width:100%;white-space:normal;text-align:left;font-size:12px}.knowledge-more summary{font-size:12px}.card-fold[open]>summary:after{content:'−'}.compact-overview select{font-size:12px;padding:7px;max-width:100%}.compact-overview label{font-size:12px;display:flex;align-items:center;gap:8px}.app-sidebar #nav{flex:1;overflow-y:auto!important}.app-sidebar #nav .nav-group>summary{letter-spacing:0}
@media(max-width:1150px){.region-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.knowledge-card-layout{gap:16px;grid-template-columns:minmax(0,1fr) 110px}}
@media(max-width:840px){.region-grid{grid-template-columns:1fr}.region-card{padding:15px}.knowledge-card-layout{grid-template-columns:minmax(0,1fr)}.kp-card .kp-state{position:static;order:-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin:0 0 8px}.kp-state h3{grid-column:1/-1}.status-button{font-size:11px;padding:7px 3px;min-height:38px}.kp-card .kp-head h2{font-size:18px}.kp-card .kp-head{flex-direction:row;align-items:flex-start}.kp-head>div{min-width:0}.kp-head .star-btn{width:auto;white-space:nowrap}.compact-overview{gap:10px}.region-section>p{margin-bottom:12px}}

/* ===== 手机端触控目标(最后加载,确保生效) ===== */
@media (max-width:840px){
.rel-card-grid button{min-height:42px;min-width:42px;font-size:13px}
.rel-card-grid{grid-template-columns:repeat(auto-fill,minmax(42px,1fr));max-height:min(38vh,270px)}
.kp-toolbar button,.kp-toolbar a,.kp-toolbar summary{min-height:38px}
.rel-question button,.rel-question summary{min-height:38px}
.question-actions button{min-height:40px}
.answer-card-grid button{min-height:42px;font-size:13px}
.obs-zoom button{min-height:42px;width:44px;font-size:17px}
}

/* ===== 手机端触控目标第二轮:筛选/操作/翻页 ===== */
@media (max-width:840px){
.knowledge-controls #chooseKnowledgeArea{min-height:40px}
.knowledge-controls .knowledge-more>summary{display:flex;align-items:center;justify-content:space-between;min-height:40px;padding:0 12px}
.kp-toolbar label{display:flex;align-items:center;gap:6px;min-height:38px}
.kp-toolbar select,.kp-toolbar input{min-height:36px}
.kp-actions button{min-height:40px}
.kp-nav button{min-height:40px}
.source-tabs button{min-height:40px}
.rel-side-title{font-size:12px}
}

/* ===== 手机端触控目标第三轮:分页/工具栏/相关题链接 ===== */
@media (max-width:840px){
.pagination button{min-height:40px;min-width:44px}
.kp-toolbar button{min-height:38px}
.analysis-extra>summary{display:flex;align-items:center;min-height:40px}
.kp-links button,.related-exam button{min-height:38px;padding:6px 12px}
.kp-tools button,.kp-tools a{min-height:38px}
}

/* 2026-10-17: case reader + adjacent answer sheet; source data unchanged. */
.case-item .case-workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,1fr);gap:24px;align-items:start}
.case-stem,.case-response{min-width:0}.case-stem>h3{font-size:14px;margin:0 0 12px;color:var(--muted)}
.case-response{position:sticky;top:88px;max-height:calc(100dvh - 110px);overflow:auto;overscroll-behavior:contain;padding:2px 4px 8px}
.case-response .case-draft{margin-top:0}.case-response textarea{min-height:260px;max-height:52dvh;line-height:1.65;white-space:pre-wrap}
.case-draft-label{display:block;font-size:12px;color:var(--muted);margin:8px 0}
.case-response .case-solution{margin-top:14px}.case-response .block-label{margin-top:14px}
.case-item .case-rich{line-height:1.7;overflow-wrap:anywhere}.case-item .case-rich :is(p,div){margin-block:0 8px;line-height:inherit;min-height:0}
.case-item .case-rich img{display:block;max-width:100%;height:auto;margin:10px auto}.case-item .case-rich pre{white-space:pre;overflow:auto;line-height:1.5}
.case-item .case-rich table{display:block;max-width:100%;overflow:auto}.case-item .case-rich :is(td,th){overflow-wrap:normal}
.answer-sidebar,.answer-card-grid{overflow-anchor:none}
@media(max-width:840px){.case-item .case-workspace{grid-template-columns:minmax(0,1fr);gap:14px}.case-response{position:static;max-height:none;overflow:visible;padding:0}.case-response textarea{min-height:180px;max-height:none}.case-item .case-rich{font-size:14px;line-height:1.65}}

/* ===== 手机端触控目标第四轮:knowledge-controls 工具栏(压制 app-shell 规则) ===== */
@media (max-width:840px){
.knowledge-controls .kp-toolbar button{min-height:38px;font-size:12px}
.knowledge-controls .kp-toolbar select{min-height:36px;font-size:13px}
.knowledge-controls .kp-toolbar label{font-size:12px}
}