*{box-sizing:border-box}body{margin:0;color:#142033;background:#f6f8fb}.teacher-shell{min-height:100vh;background:#f6f8fb}.teacher-header{min-height:92px;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;border-bottom:1px solid #e6ebf2}.teacher-mark{width:40px;height:40px;display:inline-grid;place-items:center;color:#fff;background:#0f766e;border-radius:8px;flex:0 0 auto}.teacher-header h1{margin:0;font-size:22px}.teacher-header p{margin:4px 0 0;color:#667085}.teacher-content{padding:28px}.teacher-page-stack{display:grid;gap:18px}.teacher-hero{padding:28px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:stretch;color:#fff;background:linear-gradient(135deg,#0f766ef2,#111827f0),#0f766e;border-radius:8px}.teacher-hero h1{margin:12px 0 8px;color:#fff;font-size:34px;line-height:1.2}.teacher-hero p{max-width:720px;color:#ffffffc7;font-size:16px}.teacher-hero .ant-tag{white-space:normal;line-height:1.6}.teacher-hero-panel{padding:22px;display:grid;align-content:center;gap:8px;color:#fff;background:#ffffff1f;border:1px solid rgba(255,255,255,.18);border-radius:8px}.teacher-hero-panel span,.teacher-hero-panel small{color:#ffffffb8}.teacher-hero-panel strong{font-size:30px;line-height:1.15}.teacher-overview{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}.teacher-center-nav{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px;position:sticky;top:0;z-index:5;padding:8px 0;background:#f6f8fbeb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.teacher-center-card{min-height:108px;padding:14px;display:grid;gap:6px;text-align:left;color:#344054;background:#fff;border:1px solid #e6ebf2;border-radius:8px;cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.teacher-center-card:hover,.teacher-center-card.active{border-color:#14b8a6;box-shadow:0 10px 26px #0f766e1f;transform:translateY(-1px)}.teacher-center-card span{font-weight:700}.teacher-center-card strong{color:#0f766e;font-size:24px;line-height:1.1}.teacher-center-card small{color:#667085;line-height:1.45}.teacher-center-hidden{display:none!important}.teacher-center-wide{grid-column:1 / -1}.teacher-module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.teacher-commercial-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.teacher-commercial-grid.two{grid-template-columns:1fr 1fr 1fr}.teacher-section-heading{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}.teacher-section-heading h3,.teacher-section-heading p{margin:0}.teacher-command-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:18px}.teacher-skill-rail{display:grid;align-content:start;gap:10px}.teacher-skill-item{padding:12px;gap:12px;cursor:pointer;border:1px solid #edf1f5;border-radius:8px;transition:border-color .2s ease,background .2s ease}.teacher-skill-item:hover,.teacher-skill-item.active{background:#f0fdfa;border-color:#99f6e4}.teacher-skill-item>div{min-width:0;display:grid;gap:2px}.teacher-skill-item strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.teacher-skill-item span{color:#667085;font-size:12px}.teacher-command-main{display:grid;gap:14px}.teacher-parameter-row{display:grid;grid-template-columns:140px 1fr 1.4fr 120px 110px;gap:10px}.teacher-task-description{display:grid;gap:4px;color:#667085}.teacher-execution-result{margin-top:4px}.teacher-execution-body p{margin:0 0 10px}.teacher-card-icon{width:38px;height:38px;display:grid;place-items:center;color:#0f766e;background:#e6fffb;border-radius:8px;font-size:18px}.teacher-card h2{margin:16px 0 8px;font-size:18px}.teacher-card p{margin:0;color:#667085;line-height:1.7}.teacher-auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,rgba(15,118,110,.08),transparent 45%),#f6f8fb}.teacher-auth-card{width:min(460px,100%)}.teacher-empty-card{max-width:720px;margin:0 auto}.teacher-table-entity{display:grid;gap:2px}.teacher-table-entity span{color:#667085;font-size:12px}@media(max-width:960px){.teacher-header{align-items:flex-start;flex-direction:column}.teacher-content{padding:18px}.teacher-hero,.teacher-command-layout,.teacher-commercial-grid,.teacher-commercial-grid.two,.teacher-parameter-row,.teacher-overview,.teacher-center-nav,.teacher-module-grid{grid-template-columns:1fr}}