:root{--navy:#17365D;--blue:#2F6BFF;--bg:#F4F7FC;--green:#3AA676;--red:#D94A4A;--radius:20px;--shadow:0 10px 35px #17365d08}
*{box-sizing:border-box}body{margin:0;color:var(--navy);background:var(--bg);font:16px/1.65 'Microsoft YaHei','PingFang SC',sans-serif}h1,h2,p{margin-top:0}h1{font-size:32px;line-height:1.35;letter-spacing:.01em}h2{font-size:23px;line-height:1.4}a{color:var(--blue);text-decoration:none}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,input,select,textarea{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 24px;border:1px solid transparent;border-radius:16px;background:var(--blue);color:white;cursor:pointer;font-weight:600;transition:background .15s,box-shadow .15s,transform .15s}button:hover{filter:brightness(.97);box-shadow:0 5px 14px #2f6bff25}button:active{transform:translateY(1px)}button:disabled{background:#a2b4d1;color:white;cursor:not-allowed;box-shadow:none;transform:none;filter:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #2f6bff;outline-offset:4px}input,select,textarea{width:100%;display:block;min-height:52px;border:1px solid #c9d7ea;border-radius:12px;padding:12px 16px;color:var(--navy);background:white;resize:vertical}label{display:block;font-weight:600;margin-bottom:24px}label input,label select,label textarea{margin-top:8px;font-weight:400}textarea{line-height:1.7}input::placeholder,textarea::placeholder{color:#8d9ab0}input[type=number]{max-width:100%}[hidden]{display:none!important}.center{text-align:center}.wide{width:100%}.primary{background:var(--blue)!important;color:white!important}.secondary{background:white;border-color:#c7d7f0;color:var(--navy)}.danger{background:var(--red)}.small{min-height:44px;padding:8px 16px;font-size:14px}.text-button{background:none;color:var(--blue);font-size:16px;min-height:44px;padding:8px 12px;font-weight:400}.hint{color:#718198;font-size:14px;font-weight:400}.muted{color:#7f8da1;background:#f8fafc!important}.panel{background:white;border:1px solid #e1e9f4;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.brand{color:var(--navy);font-size:18px;font-weight:800;letter-spacing:.01em}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0;margin-bottom:24px;font-size:14px}.topbar>span{color:#73839b}.student-main{max-width:1160px;margin:auto;padding:0 32px 32px;font-size:18px}.student-main button{font-size:20px}.student-main.narrow{max-width:800px}.student-main>h1{margin-top:32px}.student-main>.wide{display:flex;max-width:560px;margin:32px auto 0}.status{position:relative;z-index:2;border-radius:14px;background:#e6efff;color:var(--navy);padding:16px 24px;margin-bottom:24px;white-space:pre-line}.status[data-error=true]{background:#fff0f0;color:#b33232}.status[data-ok=true]{background:#e5f5ee;color:#207e56}.actions{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:24px}.eyebrow,.tag{font-size:14px;font-weight:700;color:var(--blue);letter-spacing:.02em}.tag{display:inline-block;margin-bottom:8px}.page-title{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:24px}.page-title h1{margin-bottom:8px}.page-title p{color:#73839b;margin-bottom:0}.label{padding:6px 16px;background:#e8effe;border-radius:20px;font-size:14px}.welcome{display:grid;grid-template-columns:1fr 1.25fr;align-items:center;gap:24px;margin-bottom:32px}.welcome h1{font-size:40px}.welcome>img{width:100%;border-radius:24px}.welcome p:not(.eyebrow){color:#627796}.roles{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.role-card{background:white;border:1px solid #e0e8f3;color:var(--navy);padding:24px;border-radius:20px}.role-card h2{margin:8px 0}.role-card p{font-size:16px}.role-icon{font-size:32px}.role-card b{font-size:16px}.sidebar{position:fixed;inset:0 auto 0 0;width:216px;padding:32px 24px;background:#edf3fc;border-right:1px solid #e0e8f3;display:flex;flex-direction:column;z-index:5}.sidebar nav{margin-top:40px;display:flex;flex-direction:column;gap:8px;font-size:15px}.sidebar nav>a,.sidebar nav>span{padding:12px;border-radius:12px;color:#111;font-weight:700}.sidebar nav>a.active{background:var(--blue);color:white}.sidebar-foot{margin-top:auto;font-size:14px;color:#587394}.sidebar-foot p{font-size:12px;margin-top:16px}.teacher-main{max-width:1440px;margin-left:216px;padding:0 40px 32px}.login-panel{max-width:500px;margin:48px auto}.start-class{display:flex;align-items:center;justify-content:space-between;padding:24px 32px;border-radius:20px;background:linear-gradient(100deg,#5b9cff,#2f6bff);color:white}.start-class h2{margin-bottom:8px}.start-class p{margin:0}.start-class>span{font-size:40px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:24px 0 40px}.stats>div{padding:24px;background:white;border-radius:20px;color:#718198;font-size:14px}.stats strong{display:block;color:var(--navy);font-size:32px}.room-list{display:flex;flex-direction:column;gap:16px}.room-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px;background:white;border:1px solid #e1e9f4;border-radius:16px}.room-row h3{margin:0 0 6px}.course-preview{display:flex;align-items:center;gap:24px;margin-bottom:32px}.course-preview img{width:150px;border-radius:16px}.course-preview h2{margin-bottom:8px}.course-preview p{margin:0;color:#718198}.create-form{max-width:940px}.field-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.class-code{display:flex;gap:32px;align-items:center;margin-bottom:32px}.class-code>div:first-child{flex:1}.class-code p{margin-bottom:8px}.digits{display:flex;gap:8px;margin-bottom:16px}.digits>span{display:inline-flex;background:#eaf1ff;border:1px solid #d2e1ff;min-width:42px;height:52px;align-items:center;justify-content:center;border-radius:8px;font-size:32px;font-weight:800;color:var(--blue)}#qr{width:124px;height:124px;background:white}.console-summary{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:4px 16px;font-size:14px}.console-summary strong{font-size:24px}.console-summary>span:last-child{grid-column:1/-1;color:var(--red)}.section-title{display:flex;justify-content:space-between;gap:16px}.student-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:24px}.student-card{background:white;color:var(--navy);display:block;text-align:left;border:1px solid #e0e8f3;padding:20px;border-radius:16px;min-height:200px}.student-card>img{width:100%;height:110px;object-fit:contain;border-radius:10px}.student-card .avatar{font-size:42px;display:block;text-align:center;padding:16px}.student-card h3{font-size:17px;margin:8px 0}.pill{font-size:13px;padding:4px 10px;border-radius:8px;background:#e9f1ff;color:var(--blue);display:inline-block}.pill.done{color:#227e56;background:#e4f5ec}.pill.failed{color:#b33232;background:#fff0f0}.join-panel{max-width:560px;text-align:center;margin:24px auto 0;border-radius:24px}.join-panel label{text-align:left}.join-panel h1{font-size:36px}.code-input{font-size:32px;letter-spacing:.38em;text-align:center;font-weight:800}.join-illustration{width:100%;border-radius:24px;margin-top:-8px;position:relative;z-index:-1}.steps{display:flex;justify-content:center;gap:24px;padding:16px 0 32px;color:#8b9bb1;font-size:15px}.steps .active{color:var(--blue);font-weight:700}.task-hero{position:relative}.task-hero img{width:100%;height:320px;object-fit:cover;border-radius:24px}.task-hero h1{position:absolute;top:24px;left:32px;background:#ffffffd9;border-radius:12px;padding:8px 16px;font-size:24px}.task-card{position:relative;max-width:800px;margin:-48px auto 0}.task-card h2{font-size:26px}.checklist{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0;color:#399a70}.voice-area{text-align:center;padding:24px 0}.mic{width:148px;height:148px;min-height:148px;padding:36px;display:flex;border-radius:50%;margin:0 auto 24px;background:linear-gradient(135deg,#a97cff,#5d64f2);box-shadow:0 0 0 16px #eeeaff,0 10px 40px #8774ff30}.mic svg{width:100%;height:100%;fill:none;stroke:white;stroke-width:4;stroke-linecap:round}.mic svg rect{fill:white;stroke:none}.mic.recording{background:var(--red);animation:pulse 1.2s infinite}.voice-area .text-button{display:block;margin:auto}.compact{padding:16px 0}.compact .mic{width:140px;height:140px;min-height:140px;padding:36px}.expression{margin:8px 0 24px}.expression label{margin:0}.expression .hint{margin:12px 0 0}.speech-card{margin:24px 0}.speech-card p{font-size:22px;margin-bottom:0;white-space:pre-wrap}.blue-card{background:#eaf1ff}.candidates{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:40px 0 24px}.candidate{position:relative;padding:12px;background:white;border:3px solid transparent;border-radius:20px;text-align:center}.candidate:has(input:checked){border-color:var(--blue);box-shadow:0 8px 24px #2f6bff20}.candidate img{width:100%;border-radius:12px;aspect-ratio:4/3;object-fit:cover}.candidate label{margin:0;cursor:pointer}.candidate input{display:inline-block;width:24px;height:24px;min-height:24px;accent-color:var(--blue);margin:16px 12px 0 0;vertical-align:middle}.candidate .slot-placeholder{aspect-ratio:4/3;background:#eaf0fa;display:flex;align-items:center;justify-content:center;border-radius:12px;color:#73839b}.candidate button{font-size:17px;margin-top:16px;padding:8px 12px}.reason{max-width:720px;margin:24px auto}.reason label{margin-bottom:12px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.chips>button{font-size:15px;background:#e9f0fb;color:var(--navy);padding:8px 14px;min-height:44px;border-radius:14px;font-weight:400}.edit-layout,.final-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;margin-top:32px}.artwork{display:block;width:100%;border-radius:20px;box-shadow:var(--shadow);background:#e5edf9}.edit-layout label{font-size:18px;margin-bottom:16px}.final-layout .panel{margin-bottom:24px}.final-layout .panel p{margin:0;font-size:20px}.final-layout li{margin-bottom:12px}.final-layout ul{margin:8px 0 0;padding-left:24px}.final-layout .actions{justify-content:flex-start}dialog{max-width:800px;width:calc(100% - 48px);border:1px solid #dce6f4;padding:32px;border-radius:20px;color:var(--navy);box-shadow:0 20px 80px #17365d35}dialog::backdrop{background:#17365d66}#student-detail h2{margin-top:24px}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.timeline img{width:100%;border-radius:12px}.timeline p{font-size:14px}footer{color:#8794a8;font-size:13px;text-align:center;margin-top:48px;padding:16px 0}@keyframes pulse{50%{box-shadow:0 0 0 22px #fce4e4}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}@media(max-width:1000px){.sidebar{width:176px;padding:24px 16px}.sidebar .brand{font-size:16px}.teacher-main{margin-left:176px;padding:0 24px}.digits>span{min-width:32px;font-size:25px;height:42px}.class-code{gap:16px}.class-code #qr{width:90px;height:90px}.welcome h1{font-size:32px}.edit-layout,.final-layout{gap:24px}}@media(max-width:700px){.student-main{padding:0 24px 24px}.topbar{align-items:flex-start;margin-bottom:8px}.topbar>span{font-size:12px;max-width:120px;text-align:right}.brand{font-size:16px}h1{font-size:28px}.welcome{grid-template-columns:1fr}.welcome>img{max-height:240px}.welcome h1{font-size:32px}.roles{grid-template-columns:1fr;gap:16px}.role-card{display:block}.role-icon{float:right}.sidebar{position:static;width:100%;padding:16px 24px;display:block}.sidebar nav{margin-top:12px;flex-direction:row;overflow:auto}.sidebar nav>span,.sidebar-foot{display:none}.sidebar nav>a{white-space:nowrap;padding:8px 12px;font-size:14px}.teacher-main{margin:0;padding:0 24px 24px}.teacher-main .topbar{display:none}.page-title{margin:24px 0}.page-title h1{font-size:26px}.stats{gap:12px}.stats>div{padding:16px;font-size:12px}.field-row{grid-template-columns:1fr;gap:0}.course-preview img{width:90px}.course-preview h2{font-size:18px}.class-code{flex-wrap:wrap}.console-summary{display:flex;flex-wrap:wrap;width:100%}.class-code #qr{width:96px;height:96px}.digits{gap:4px}.student-grid{grid-template-columns:1fr 1fr;gap:12px}.student-card{padding:12px}.section-title{display:block}.join-panel{margin-top:24px}.code-input{letter-spacing:.2em;font-size:30px}.steps{gap:12px;font-size:12px;padding:16px 0 24px}.task-hero img{height:240px}.task-hero h1{font-size:18px;left:16px;top:16px;max-width:calc(100% - 32px)}.task-card{margin:-16px 0 0}.task-card h2{font-size:22px}.checklist{grid-template-columns:1fr;gap:12px}.candidates{grid-template-columns:1fr;gap:16px;max-width:420px;margin:24px auto}.candidate label{display:block}.candidate img{max-height:280px;object-fit:cover}.edit-layout,.final-layout{grid-template-columns:1fr;gap:24px}.edit-layout>.artwork,.edit-layout>section:first-child{max-width:480px;margin:auto}.final-layout>.artwork{max-width:500px;margin:auto}.actions{gap:12px}.actions button{flex:1;min-width:130px}.speech-card p{font-size:20px}.room-row{align-items:flex-start;flex-direction:column}.timeline{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.final-layout .actions{flex-direction:column;align-items:stretch}.final-layout .actions button{width:100%;min-height:56px;white-space:nowrap}}
.review-expression{display:grid;grid-template-columns:145px 1fr;gap:16px;margin:0}.review-expression dt{font-weight:700}.review-expression dd{margin:0;white-space:pre-wrap}.review-versions{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:24px 0 32px}.review-versions .panel{padding:20px}.review-versions img{width:100%;border-radius:12px}.review-versions h3{margin:0 0 16px}.review-versions p{font-size:14px;white-space:pre-wrap}.chosen-label{color:#2f6bff;font-weight:700}.before-after img{max-height:130px;object-fit:contain;margin-top:8px}.before-after span{font-size:13px;color:#73839b}.dimension-fields{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin:24px 0}.dimension-fields label{font-size:14px}.dimension-fields select{padding:10px;font-size:14px}#feedback-panel{margin:32px 0}.report-link-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap;padding:16px 0;border-top:1px solid #e5ecf6;margin-top:16px}.report-controls{margin-bottom:40px}.confirmation-check{font-size:16px;display:flex;gap:12px;align-items:flex-start}.confirmation-check input{display:inline-block;width:24px;min-height:24px;margin:2px 0 0;flex-shrink:0}.device-notes{margin-top:24px}#device-playback{display:block;max-width:100%;margin:24px auto}.student-card .usage-line{font-size:13px;font-weight:400;color:#718198;margin:8px 0 0}.student-card .failure-line{font-size:12px;color:#b33232;font-weight:400}.student-card .submitted-label{font-size:12px;font-weight:400;color:#227e56}.review-link{display:inline-flex;margin-top:16px;padding:12px 20px;background:#2f6bff;color:white;border-radius:14px;min-height:44px;align-items:center}@media(max-width:1100px){.dimension-fields{grid-template-columns:repeat(3,1fr)}.review-versions{grid-template-columns:1fr 1fr}}@media(max-width:700px){.review-expression{grid-template-columns:1fr;gap:8px}.review-expression dd{margin-bottom:16px}.review-versions{grid-template-columns:1fr}.dimension-fields{grid-template-columns:1fr}.report-link-row{align-items:flex-start;flex-direction:column}}

/* Incremental teaching evidence controls; retain the established visual system. */
#create details label{display:flex;align-items:center;gap:12px}#create details input[type=checkbox]{width:22px;min-height:22px;flex-shrink:0}
summary{cursor:pointer;font-weight:700;min-height:44px;padding:10px 0}details>form{margin-top:18px}details.panel{margin:20px 0}.revision-thinking{display:grid;grid-template-columns:1fr;gap:8px;margin:20px 0}.revision-thinking label{width:100%}.final-layout label{width:100%}.student-card[data-priority=high]{border-color:#d58c3f}.priority-badge{display:block;font-size:13px;color:#8d5c21;text-align:left}.student-card .attention-reasons{font-size:13px;font-weight:400;white-space:normal;color:#576d88}.student-card{overflow-wrap:anywhere}#attention-list a{color:var(--blue)}#attention-summary{font-size:15px}#growth-targets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}#growth-targets h3{grid-column:1/-1}#growth-targets label{font-size:15px}#growth-targets input[type=checkbox],#assessment-form input[type=checkbox]{width:20px;min-height:20px;display:inline-block;margin-right:10px}#assessment-form details label{display:block;font-size:14px;overflow-wrap:anywhere}#growth-panel form,#contribution-panel form,#guidance-review-panel form{margin-bottom:24px}#guidance-policy-form button{margin:8px 8px 8px 0}#learning-help button{margin:8px}#own-contributions p{font-size:16px}#child-guidance button{min-height:48px}#child-guidance-response{white-space:pre-wrap}@media(max-width:700px){#growth-targets{grid-template-columns:1fr}.student-card .attention-reasons{font-size:12px}.student-card .priority-badge{font-size:12px}.revision-thinking{display:block}#attention-summary{font-size:13px}.student-main .final-layout .actions{display:flex}.student-main .final-layout .actions button{min-width:0}}

/* Compact teacher reminder; retain accessible native checkboxes. */
.create-form .evidence-reminder{padding:10px 12px;margin:8px 0 12px;background:#f5f8fc;border:1px solid #dde5ee;border-radius:10px}
.create-form .evidence-reminder-heading{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 12px;margin:0 0 6px;font-size:13px;line-height:1.4}
.create-form .evidence-reminder-heading strong{font-size:14px}
.create-form .evidence-reminder-heading span{color:#64748b;font-size:12px}
.create-form .evidence-reminder-options{display:flex;flex-wrap:wrap;gap:4px 16px}
.create-form .evidence-reminder-options label{display:inline-flex;flex-direction:row;align-items:center;gap:5px;margin:0;padding:2px 0;font-size:13px;font-weight:400;line-height:1.4;min-height:24px}
.create-form .evidence-reminder-options input[type=checkbox]{width:15px;height:15px;min-height:0;margin:0;padding:0;flex:none}

/* bigfont-20261104: 界面字大些 — 全站等比放大到约20px基准，布局不变 */
html:not(:has(body.student-ui)){zoom:1.25}
html:has(body.student-ui){zoom:1.11}
/* Unified teacher login appearance; teacher authentication and dashboard remain unchanged */
body:has(#login-panel.unified-teacher-login){background:#8ec7ff url('/static/student-art/home-v2-bg.jpg') center/cover fixed no-repeat}
body:has(#login-panel.unified-teacher-login) .teacher-main{max-width:none;margin:0;padding:0;min-height:100dvh;display:flex;align-items:center;justify-content:center}
.unified-teacher-login{width:min(440px,calc(100% - 40px));margin:0;padding:26px 28px 28px;border-radius:28px;background:rgba(255,255,255,.64);border:1px solid rgba(255,255,255,.88);backdrop-filter:blur(16px);box-shadow:0 16px 40px #3b2f8822}
.teacher-role-heading{text-align:center;color:#2a2550;margin-bottom:18px}.teacher-role-heading h1{margin:6px 0 2px}.teacher-role-heading p{margin:0;color:#4c5284}.teacher-role-icon{display:block;font-size:40px;line-height:1}
.unified-teacher-login form{display:flex;flex-direction:column;gap:2px}.unified-teacher-login input{background:#fff;border:0;box-shadow:inset 0 0 0 1px #e4e6f2}.unified-teacher-login button{width:100%;background:#ffd24a;color:#2a2550;box-shadow:0 8px 0 #e0b01f,0 12px 24px #c9892033}
.teacher-role-icon{width:64px;height:64px;margin:0 auto;border-radius:20px;background:#e6e7ff;display:flex;align-items:center;justify-content:center;font-size:34px}
.teacher-login-shell{width:min(440px,calc(100% - 40px));display:flex;flex-direction:column;align-items:center;gap:26px}.teacher-login-shell .unified-login-brand{text-align:center}.teacher-login-shell .landing-logo{margin:0;font-family:'Arial Black','Arial',sans-serif;font-weight:900;letter-spacing:.04em;line-height:1;font-size:clamp(56px,8vw,92px);background:linear-gradient(90deg,#ff7ab6,#ff9a3c,#ffd24a,#5ee0c8,#6aa8ff);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 3px 0 rgba(255,255,255,.45))}.teacher-login-shell .landing-sub{margin:10px 0 0;font-size:20px;font-weight:700;color:#2a2f66;text-shadow:0 1px 0 #fff8}