.esc-coach{--esc-navy:#132238;--esc-blue:#2563eb;--esc-mint:#dff7ef;max-width:880px;margin:28px auto;padding:28px;border:1px solid #dce4ed;border-radius:20px;background:#fff;color:var(--esc-navy);box-shadow:0 14px 40px rgba(19,34,56,.09);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.esc-header{padding:4px 4px 18px}.esc-header h2{margin:5px 0 8px;font-size:clamp(26px,4vw,40px);line-height:1.1}.esc-header p{margin:0;color:#536174}.esc-eyebrow{font-size:12px!important;font-weight:800;letter-spacing:.15em;color:var(--esc-blue)!important}.esc-toolbar{display:flex;gap:16px;flex-wrap:wrap;padding:16px;background:#f5f8fc;border-radius:14px}.esc-toolbar label{display:grid;gap:6px;flex:1;min-width:190px;font-size:13px;font-weight:700}.esc-toolbar select{width:100%;padding:10px 12px;border:1px solid #ccd7e5;border-radius:9px;background:#fff;color:var(--esc-navy)}.esc-goal{margin:18px 0 12px;padding:12px 14px;border-left:4px solid #22a881;background:var(--esc-mint);border-radius:0 10px 10px 0;font-weight:650}.esc-progress{height:8px;overflow:hidden;background:#e8edf4;border-radius:999px}.esc-progress span{display:block;width:0;height:100%;background:linear-gradient(90deg,#22a881,var(--esc-blue));transition:width .25s}.esc-progress-text{margin:7px 0 16px;font-size:13px;color:#657286}.esc-lines{display:grid;gap:10px}.esc-line{display:grid;grid-template-columns:36px 1fr auto auto;gap:12px;align-items:center;padding:14px;border:1px solid #e2e8f0;border-radius:13px}.esc-line-number{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#eef3ff;color:var(--esc-blue);font-weight:800}.esc-copy{display:grid;gap:4px}.esc-copy strong{font-size:16px}.esc-copy span{font-size:13px;color:#667386}.esc-listen,.esc-button{cursor:pointer;padding:9px 12px;border:1px solid #cbd6e4;border-radius:9px;background:#fff;color:var(--esc-navy);font-weight:700}.esc-listen:hover,.esc-button:hover{border-color:var(--esc-blue);color:var(--esc-blue)}.esc-check{font-size:13px;white-space:nowrap}.esc-actions{display:flex;gap:10px;margin-top:18px}.esc-button-primary{border-color:var(--esc-blue);background:var(--esc-blue);color:#fff}.esc-button-primary:hover{background:#174fc5;color:#fff}.esc-notice{min-height:24px;margin:12px 0 0;color:#4e5d70;font-size:14px}@media(max-width:680px){.esc-coach{padding:17px;border-radius:14px}.esc-line{grid-template-columns:34px 1fr}.esc-listen,.esc-check{grid-column:2}.esc-actions{flex-direction:column}.esc-button{width:100%}}
.esc-section-heading{display:flex;justify-content:space-between;align-items:end;gap:16px;margin:22px 0 12px}.esc-section-heading span{display:block;margin-bottom:3px;color:var(--esc-blue);font-size:11px;font-weight:800;letter-spacing:.12em}.esc-section-heading h3{margin:0;font-size:20px}.esc-section-heading small{color:#6b7788}.esc-vocab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.esc-vocab-card{padding:13px 14px;border:1px solid #dfe7f0;border-radius:12px;background:#fbfdff}.esc-vocab-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.esc-vocab-top strong{font-size:16px;color:var(--esc-blue)}.esc-vocab-top button{cursor:pointer;width:34px;height:34px;border:0;border-radius:50%;background:#eaf0ff}.esc-vocab-meaning{display:block;margin:3px 0 8px;color:#34445a;font-size:14px}.esc-vocab-card em{display:block;color:#718096;font-size:12px;font-style:normal}.esc-dialogue-heading{margin-top:26px}@media(max-width:680px){.esc-vocab-grid{grid-template-columns:1fr}.esc-section-heading{align-items:start;flex-direction:column}}
.esc-language-tabs{display:flex;gap:8px;margin:0 0 14px;padding:5px;border-radius:12px;background:#edf2f8}.esc-language-tabs button{flex:1;cursor:pointer;padding:11px 14px;border:0;border-radius:9px;background:transparent;color:#526176;font-weight:800}.esc-language-tabs button.is-active{background:#fff;color:var(--esc-blue);box-shadow:0 2px 8px rgba(19,34,56,.1)}.esc-pinyin{display:block;color:#b45309!important;font-size:13px!important;font-weight:650}.esc-pinyin[hidden]{display:none!important}.esc-translation{display:block;color:#667386;font-size:13px}
.esc-study-guide{margin:14px 0 18px;border:1px solid #cfe0ff;border-radius:12px;background:#f7faff}.esc-study-guide summary{cursor:pointer;padding:14px 16px;color:#174fc5;font-weight:800}.esc-study-guide ol{display:grid;gap:8px;margin:0;padding:0 22px 17px 40px;color:#46566b;font-size:14px}.esc-pattern-list{display:grid;gap:8px}.esc-pattern{display:flex;align-items:center;gap:11px;padding:12px 14px;border-radius:10px;background:#fff8e8;border:1px solid #f3dfad}.esc-pattern span{display:grid;place-items:center;min-width:27px;height:27px;border-radius:50%;background:#f59e0b;color:#fff;font-weight:800}.esc-pattern strong{font-size:14px}.esc-mission{display:grid;gap:6px;margin-top:16px;padding:16px;border-radius:12px;background:#132238;color:#fff}.esc-mission span{color:#8fb3ff;font-size:11px;font-weight:800;letter-spacing:.12em}.esc-mission strong{line-height:1.5}
.esc-coach.is-quiz-mode .esc-vocab-meaning,.esc-coach.is-quiz-mode .esc-vocab-card em,.esc-coach.is-quiz-mode .esc-translation{visibility:hidden}.esc-coach.is-quiz-mode .esc-vocab-card,.esc-coach.is-quiz-mode .esc-line{background:#fffdf3}