.auth-page{display:flex;min-height:100vh;flex-direction:column;background:var(--bg-color)}.auth-top{width:100%;max-width:1360px;padding:30px 48px;flex-shrink:0}.auth-brand{font-size:21px;letter-spacing:.4px}.auth-brand span{font-size:12px;letter-spacing:0}.auth-top-links{display:flex;align-items:center;gap:24px;font-size:13px;color:var(--text-secondary)}.auth-layout,.auth-layout-wide{display:flex;flex-direction:column;gap:22px;width:100%;max-width:460px;margin:clamp(25px,7vh,80px) auto 55px;padding:0 20px;align-items:stretch}.auth-layout-wide{max-width:650px;margin-top:25px}.auth-card{width:100%;padding:40px 36px 34px;border-radius:12px;background:var(--surface-color);box-shadow:0 10px 45px rgba(18,35,61,.035)}.auth-card-heading{margin-bottom:30px}.auth-card-heading h2{font-size:28px;letter-spacing:.5px;font-weight:600;margin-bottom:12px}.auth-card-heading>span{font-size:13px}.auth-form{gap:22px}.auth-form .study-button,.auth-form input{height:48px;border-radius:6px}.auth-form .study-button{margin-top:3px;justify-content:center;font-size:14px}.auth-switch{margin-top:26px;padding-top:24px}.auth-footer{margin-top:auto;padding:15px 20px 30px;line-height:1.8}.auth-footer>div{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}.auth-footer>div+div{margin-top:9px;font-size:11px}.auth-footer a:hover{color:var(--accent-color)}.miniapp-entry{position:relative;margin:0 auto;z-index:30}.miniapp-trigger{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary);padding:8px 0}.miniapp-trigger:hover{color:var(--accent-color)}.miniapp-popover{position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:#fff;color:#172b40;padding:20px 20px 16px;border:1px solid #e1e6ee;box-shadow:0 10px 40px #172b4030;border-radius:12px;text-align:center;width:260px}.miniapp-popover img{display:block;margin:0 auto 8px;max-width:100%}.miniapp-popover strong{font-size:13px;font-weight:500}.miniapp-close{position:absolute;right:6px;top:6px;padding:5px;background:white;border-radius:50%;color:#516078}.storage-consent{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:1100;width:min(1060px,calc(100% - 32px));display:flex;gap:32px;align-items:center;padding:22px 26px;border:1px solid var(--border-color);border-radius:12px;background:var(--input-bg);box-shadow:0 8px 45px #0002;backdrop-filter:blur(24px)}.storage-consent strong{font-size:15px}.storage-consent p{font-size:12px;color:var(--text-secondary);line-height:1.8;margin-top:6px;max-width:680px}.storage-consent a{color:var(--accent-color);margin-left:8px}.storage-actions{display:flex;gap:10px;flex-shrink:0;align-items:center}.storage-actions button{white-space:nowrap;font-size:12px;padding:11px 14px;border:1px solid var(--border-color);border-radius:6px}.storage-actions .study-button{border-color:transparent}.privacy-shield{position:fixed;inset:0;z-index:2147483647;background:#000!important;color:#d6dae1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:22px}.privacy-shield p{font-size:18px;text-align:center;letter-spacing:1px}.privacy-shield small{display:block;font-size:13px;color:#8a929f;margin-top:10px;letter-spacing:0}.privacy-shield button{font-size:12px;border:1px solid #454c57;padding:9px 18px;border-radius:5px}.study-footer-links{display:flex;gap:18px;padding:12px;font-size:12px;color:var(--text-secondary)}.study-link{color:var(--accent-color);display:inline-flex;align-items:center;gap:5px}.study-notice .study-link{margin-left:12px}.profile-page button[aria-pressed=true]{outline:2px solid var(--accent-color);outline-offset:2px}.profile-page button:disabled{cursor:not-allowed}.miniapp-trigger:focus-visible,.profile-page button:focus-visible{outline:2px solid var(--accent-color);outline-offset:4px}.about-page{max-width:1080px;margin:auto;padding:0 36px}.about-page header{display:flex;align-items:center;justify-content:space-between;padding:32px 0;border-bottom:1px solid var(--border-color)}.about-page header>a{display:flex;align-items:center;gap:10px}.about-page header>a:first-child{font-size:21px;font-weight:650}.about-page header>a:last-child{font-size:13px;color:var(--text-secondary)}.about-page main{max-width:800px;margin:66px auto}.about-label{color:var(--accent-color);font-size:14px}.about-page h1{font-size:36px;margin:14px 0 18px;font-weight:650}.about-page .about-lead{font-size:22px;color:var(--text-primary);margin-bottom:20px}.about-page dd,.about-page p{font-size:15px;color:var(--text-secondary);line-height:1.95;margin-bottom:20px}.about-page .study-button{display:inline-flex;margin-top:6px}.about-page section{margin-top:46px;padding-top:30px;border-top:1px solid var(--border-color);scroll-margin-top:28px}.about-page h2{font-size:23px;margin-bottom:20px;font-weight:600}.about-page dt{font-size:15px;font-weight:600;margin-bottom:6px}.about-page section a{color:var(--accent-color)}.about-page footer{padding:20px 0 35px;text-align:center;font-size:12px;color:var(--text-secondary)}.learning-report{max-width:1160px;margin:0 auto;color:var(--text-primary)}.report-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.report-heading p{font-size:12px;color:var(--text-secondary);margin-bottom:8px}.report-heading h1{font-size:30px;font-weight:650;letter-spacing:1px}.report-actions{display:flex;gap:10px}.report-actions button{font-size:13px;display:flex;align-items:center;gap:8px}.report-identity{display:flex;gap:22px;align-items:center;flex-wrap:wrap;padding:22px 0 15px;border-top:2px solid var(--text-primary)}.report-identity strong{font-size:21px}.report-identity span{font-size:14px}.report-identity small{margin-left:auto}.report-identity small,.report-scope{font-size:12px;color:var(--text-secondary)}.report-scope{line-height:1.9;max-width:850px;margin-bottom:26px}.report-metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border-color);background:var(--surface-color);border-radius:8px;padding:22px 0;margin-bottom:32px}.report-metrics>div{padding:0 24px;border-left:1px solid var(--border-color)}.report-metrics>div:first-child{border-left:0}.report-metrics small,.report-metrics span{display:block;font-size:12px;color:var(--text-secondary)}.report-metrics strong{display:block;font-size:30px;font-weight:600;margin:9px 0;font-variant-numeric:tabular-nums}.report-metrics em{font-size:14px;font-style:normal}.report-section{margin-top:32px;padding-top:26px;border-top:1px solid var(--border-color)}.report-section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:12px}.report-section h2{font-size:20px;font-weight:600}.report-section-heading>span{font-size:12px;color:var(--text-secondary)}.report-section p{font-size:13px;line-height:1.9;color:var(--text-secondary);margin-bottom:18px}.report-trend{display:grid;grid-template-columns:repeat(14,minmax(36px,1fr));gap:12px;padding:16px 0 4px;overflow:auto}.report-trend>div{text-align:center;font-variant-numeric:tabular-nums}.report-trend span{font-size:12px;color:var(--text-primary)}.report-bar-track{height:120px;position:relative;border-bottom:1px solid var(--border-color);margin:7px 0}.report-bar-track i{position:absolute;bottom:0;left:22%;width:56%;max-width:32px;background:var(--accent-color);opacity:.7;border-radius:3px 3px 0 0}.report-trend small{display:block;font-size:11px;color:var(--text-secondary)}.report-trend b{display:block;font-weight:400;font-size:11px;margin-top:7px}.report-weak-list>div{display:flex;align-items:center;gap:26px;border-bottom:1px solid var(--border-color);padding:20px 0}.report-weak-list>div>div{flex:1}.report-weak-list h3{font-size:16px;font-weight:600}.report-weak-list p{margin:5px 0 0;font-size:12px}.report-weak-list strong{font-size:23px;font-weight:600;text-align:right;color:var(--accent-color)}.report-weak-list strong small{display:block;font-size:11px;font-weight:400;color:var(--text-secondary)}.report-weak-list a{font-size:13px;display:flex;align-items:center;gap:7px}.report-muted{margin-top:15px!important}.report-muted a{color:var(--accent-color)}.report-plan{padding-left:22px;list-style:decimal}.report-plan li{padding:15px 0 15px 10px;border-bottom:1px solid var(--border-color);position:relative}.report-plan h3{font-weight:600;font-size:16px}.report-plan h3 span{font-size:12px;font-weight:400;color:var(--text-secondary);margin-left:16px}.report-plan li>div{padding-right:115px}.report-plan li>a{position:absolute;right:0;top:20px;font-size:13px}.report-plan li p{margin:5px 0 0}.report-table-wrap{overflow:auto}.learning-report table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.65}.learning-report td,.learning-report th{padding:13px 15px;border-bottom:1px solid var(--border-color);text-align:right;font-variant-numeric:tabular-nums}.learning-report th:first-child{text-align:left;max-width:380px}.learning-report thead{background:var(--item-bg);color:var(--text-secondary)}.learning-report th{font-weight:500}.learning-report tbody th small{display:block;font-size:11px;color:var(--text-secondary)}.learning-report td a{color:var(--accent-color);white-space:nowrap}.report-method li{font-size:12px;line-height:1.9;color:var(--text-secondary);margin:8px 0}.report-method ul{list-style:disc;padding-left:20px;margin-top:18px}.report-teacher-notes{display:none}.report-footer{font-size:11px;text-align:center;margin:40px 0 16px}.report-empty,.report-footer{color:var(--text-secondary);line-height:1.9}.report-empty{padding:26px;border:1px dashed var(--border-color);border-radius:6px;font-size:14px;margin:16px 0}.report-empty h2{font-size:20px;color:var(--text-primary);margin-bottom:8px}.report-empty p{margin-bottom:12px}.report-empty .study-button{display:inline-flex;font-size:13px}@media(max-width:800px){.auth-top{padding:24px}.auth-brand span{display:none}.auth-layout{margin-top:30px}.auth-layout-wide{max-width:650px}.auth-card{padding:30px 25px}.auth-top-links{gap:12px}.storage-consent{display:block;padding:18px;bottom:12px}.storage-actions{margin-top:12px;justify-content:flex-end}.report-heading{align-items:start;flex-direction:column}.report-metrics{grid-template-columns:1fr 1fr;gap:24px}.report-metrics>div:nth-child(3){border:0}.report-section-heading{align-items:start;flex-direction:column;gap:7px}.report-identity{gap:12px}.report-identity small{margin-left:0;width:100%}.report-weak-list>div{flex-wrap:wrap}.about-page{padding:0 22px}.about-page h1{font-size:28px}}@media print{@page{size:A4;margin:14mm}body,html{background:white!important;color:#172b40!important}.privacy-shield,.report-actions,.report-plan li>a,.report-weak-list a,.storage-consent,.study-mobile-overlay,.study-shell>aside,.study-shell>main>header,.study-shell>main>nav{display:none!important}.study-shell,.study-shell>main{display:block!important;width:100%!important;min-height:0!important}.study-shell>main>div{padding:0!important;overflow:visible!important}.learning-report{--text-primary:#172b40;--text-secondary:#465368;--border-color:#d6dce5;--surface-color:white;--item-bg:#f1f4f8;--accent-color:#315dcc;font-size:10pt;max-width:none}.report-metrics{-moz-column-break-inside:avoid;break-inside:avoid}.report-section h2,.report-section-heading{-moz-column-break-after:avoid;break-after:avoid}.learning-report tr,.report-plan li,.report-trend,.report-weak-list>div{-moz-column-break-inside:avoid;break-inside:avoid}.report-trend{overflow:visible;gap:5px;grid-template-columns:repeat(14,1fr)}.report-bar-track{height:90px;-webkit-print-color-adjust:exact;print-color-adjust:exact}.report-table-wrap{overflow:visible}.learning-report thead{display:table-header-group}.report-teacher-notes{display:block;margin-top:24px}.report-teacher-notes h3{font-size:13px}.report-teacher-notes>div{height:28px;border-bottom:1px solid #d6dce5}.report-identity small{font-size:10px}.report-metrics>div{padding:0 12px}.report-metrics strong{font-size:24px}.report-plan li>div{padding-right:0}.atmosphere,.glow-orb{display:none!important}}[class*=avatar-frame-]{isolation:isolate}[class*=avatar-frame-]:after,[class*=avatar-frame-]:before{pointer-events:none}.profile-page>div:first-child .text-white{color:#fff!important}@media(prefers-reduced-motion:reduce){[class*=avatar-frame-]:after,[class*=avatar-frame-]:before{animation:none!important}}.study-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);background:var(--surface-color);font-size:13px}.study-outline:hover{border-color:var(--accent-color)}.study-button:disabled,.study-outline:disabled{opacity:.55;cursor:not-allowed}[class*=avatar-frame-]:before{padding:3px;-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude}.auth-footer>div+div{font-size:12px}.theme-control{position:relative;display:flex;align-items:center;border:1px solid var(--border-color);border-radius:20px;background:var(--surface-color);z-index:60}.theme-switch{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;color:var(--text-secondary)}.theme-switch:hover{background:var(--item-hover-bg)}.theme-switch svg{transition:transform .55s ease}.theme-switch:hover svg{transform:rotate(25deg)}.theme-menu-button{display:flex;align-items:center;gap:6px;font-size:11px;padding:8px 11px 8px 3px;color:var(--text-secondary)}.theme-options{position:absolute;right:0;top:calc(100% + 9px);width:208px;padding:12px;border:1px solid var(--border-color);border-radius:10px;background:var(--bg-color);box-shadow:0 12px 40px #0002;text-align:left}.theme-options p{font-size:11px;color:var(--text-secondary);padding:3px 8px 9px}.theme-options button{width:100%;display:flex;align-items:center;gap:10px;padding:10px 8px;border-radius:5px;font-size:13px}.theme-options button span{flex:1}.theme-options button[aria-pressed=true]{background:var(--accent-glow);color:var(--accent-color)}.theme-options small{display:block;font-size:10px;color:var(--text-secondary);padding:10px 8px 3px;line-height:1.6}::view-transition-new(root),::view-transition-old(root){animation:none;mix-blend-mode:normal}::view-transition-new(root){z-index:2}::view-transition-old(root){z-index:1}.theme-fading,.theme-fading aside,.theme-fading body,.theme-fading button,.theme-fading div,.theme-fading header,.theme-fading input,.theme-fading main,.theme-fading section{transition:background-color .7s ease,color .7s ease,border-color .7s ease!important}@media(prefers-reduced-motion:reduce){.theme-switch svg{transition:none}.theme-fading *{transition:none!important}}.dashboard-brand{display:flex;align-items:center;gap:10px;padding:22px 24px;flex-shrink:0}.dashboard-brand strong{display:block;color:var(--text-primary);font-size:20px;line-height:1.4;font-weight:700;white-space:nowrap}.dashboard-brand small{display:block;margin-top:4px;color:var(--text-secondary);font-size:11px;line-height:1.5;white-space:nowrap;letter-spacing:0}.member-miniapp-code{margin:24px auto 18px;text-align:center}.member-miniapp-code img{display:block;width:216px;height:216px;max-width:100%;-o-object-fit:contain;object-fit:contain;margin:0 auto;padding:8px;border-radius:12px;box-sizing:content-box;background:#fff}.member-miniapp-code figcaption{font-size:13px;color:var(--text-secondary);line-height:1.7;margin-top:12px}.study-modal{max-height:calc(100dvh - 40px);overflow-y:auto}html:not([data-content-copy=allowed]) body,html:not([data-content-copy=allowed]) body *{-moz-user-select:none!important;user-select:none!important;-webkit-user-select:none!important;-webkit-touch-callout:none!important}html:not([data-content-copy=allowed]) img{-webkit-user-drag:none!important}.content-capture-shield{display:none}html[data-capture-shield=true] body>:not(.content-capture-shield){visibility:hidden!important}html[data-capture-shield=true] .content-capture-shield{display:flex!important;visibility:visible!important;position:fixed;inset:0;z-index:2147483647;background:#000!important;color:#d6dae1;align-items:center;justify-content:center;flex-direction:column;gap:18px}.content-capture-shield h2{font-size:20px}.content-capture-shield p{font-size:13px;color:#a7aebb}.content-capture-shield button{padding:10px 24px;border:1px solid #566070;border-radius:6px;color:#fff}.content-protection-notice{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);z-index:1200;background:var(--bg-color);color:var(--text-primary);padding:14px 22px;box-shadow:0 5px 25px #0003;border:1px solid var(--border-color);border-radius:8px;font-size:13px;max-width:calc(100% - 32px);pointer-events:none}@media print{.content-capture-shield,.content-protection-notice,html:not([data-print-allowed=true]) body>*{display:none!important}html:not([data-print-allowed=true]) body:after{content:"学习内容受保护，请返回网页学习。";display:block!important;color:#000!important;font-size:16px;padding:30px}}.public-page{max-width:1160px;padding:0 32px;margin:auto;color:var(--text-primary)}.document-important,.public-header-actions .study-outline{position:relative;isolation:isolate}.public-header{justify-content:space-between;gap:20px;padding:30px 0;border-bottom:1px solid var(--border-color)}.public-brand,.public-header{display:flex;align-items:center}.public-brand{gap:10px;font-size:21px;font-weight:650}.public-header-actions,.public-header-actions nav{display:flex;align-items:center;gap:20px}.public-header-actions{font-size:14px}.public-session-placeholder{color:var(--text-secondary);font-size:12px}.public-nav{display:flex;gap:30px;flex-wrap:wrap;padding:20px 0;border-bottom:1px solid var(--border-color);font-size:14px;color:var(--text-secondary)}.public-nav a{padding:4px 0}.public-nav a[aria-current=page]{color:var(--accent-color);font-weight:650;box-shadow:0 2px var(--accent-color)}.document-layout{display:grid;grid-template-columns:205px minmax(0,1fr);gap:64px;align-items:start;margin:54px 0 72px}.document-toc{position:sticky;top:24px;font-size:13px}.document-toc>p{font-weight:600;margin-bottom:16px}.document-toc nav{display:flex;flex-direction:column;gap:12px;line-height:1.7;color:var(--text-secondary)}.document-toc a:hover,.public-page a:hover{color:var(--accent-color)}.document-contact{display:block;border-top:1px solid var(--border-color);margin-top:25px;padding-top:20px;color:var(--text-secondary)}.document-contact small{display:block;margin-top:7px;font-size:12px;overflow-wrap:anywhere}.document-main{max-width:760px;min-width:0}.document-heading h1{font-size:36px;font-weight:650;letter-spacing:.02em;line-height:1.3;margin-bottom:22px}.document-heading .document-lead{font-size:22px;line-height:1.6;color:var(--text-primary);margin-bottom:16px}.document-main p{font-size:15px;line-height:2;color:var(--text-secondary);margin-bottom:18px;overflow-wrap:anywhere}.document-version{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12px;line-height:1.9;color:var(--text-secondary);padding:18px 0;margin-top:24px;border-top:1px solid var(--border-color)}.document-version a{font-size:13px}.document-section{scroll-margin-top:24px;padding-top:32px;margin-top:34px;border-top:1px solid var(--border-color)}.document-action h2,.document-related h2,.document-section h2{font-size:21px;line-height:1.6;font-weight:650;margin-bottom:18px}.document-important{border-left:3px solid var(--accent-color);padding:24px 24px 6px;background:var(--item-bg);border-top:0}.document-important h2{font-size:20px}.document-action{padding:28px;margin-top:36px;border:1px solid var(--border-color);border-radius:8px}.document-related{border-top:1px solid var(--border-color);padding-top:28px;margin-top:40px}.document-related h2{font-size:16px}.document-related a{display:inline-block;margin-right:24px;margin-bottom:12px;font-size:14px;color:var(--accent-color)}.public-footer{border-top:1px solid var(--border-color);padding:28px 0 36px;text-align:center;color:var(--text-secondary);font-size:12px;line-height:1.9}.public-footer p+p{margin-top:8px}.public-footer a+a{margin-left:22px}.public-page a:focus-visible,.public-page button:focus-visible{outline:2px solid var(--accent-color);outline-offset:5px}.auth-form .auth-agreement{display:flex;gap:11px;align-items:flex-start;font-size:13px;line-height:1.9;color:var(--text-secondary);padding:16px 0 0;border-top:1px solid var(--border-color)}.auth-form .auth-agreement input{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto;width:17px;height:17px;min-width:17px;margin:4px 0 0;padding:0;accent-color:var(--accent-color);cursor:pointer}.auth-agreement a{color:var(--accent-color);text-decoration:underline;text-underline-offset:3px}.auth-agreement small{display:block;font-size:12px;margin-top:5px}.auth-form .auth-agreement label{font-size:13px;line-height:1.9}@media(max-width:800px){.public-page{padding:0 22px}.public-header{padding:24px 0;gap:10px}.public-brand{font-size:18px}.public-header-actions{gap:10px}.public-header-actions nav{gap:12px}.public-nav{gap:12px 22px}.document-layout{grid-template-columns:1fr;gap:26px;margin-top:30px}.document-toc{position:static;padding-bottom:22px;border-bottom:1px solid var(--border-color)}.document-toc nav{display:flex;flex-direction:row;flex-wrap:wrap;gap:8px 18px}.document-contact{display:none}.document-heading h1{font-size:29px}.document-heading .document-lead{font-size:20px}.document-version{align-items:start;flex-direction:column}.document-important{padding:18px 16px 1px}.public-footer a{display:inline-block}.public-footer a+a{margin-left:12px}}