:root{--bg:#f5f6f8;--surface:#fff;--ink:#15171c;--sub:#555b68;--line:#e2e5ea;--field-line:#c9cdd5;--accent:#3a3fd4;--accent-weak:#ecedfc;--mid:#b9bbf5;--warn:#f97316;--warn-weak:#fff1e6;--warn-text:#8a3a07;--video-bg:#1c1f27;--skeleton:#8e92f0;--radius-card:14px;--radius-button:10px;--radius-field:8px;--font-body:"Noto Sans JP", system-ui, sans-serif;--font-num:"Space Grotesk", sans-serif}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:var(--font-body);margin:0}a{color:var(--accent)}a:hover{color:#2a2ea8}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.logo{font-family:var(--font-num);letter-spacing:-1px;font-weight:700}.auth-page{justify-content:center;align-items:center;min-height:100vh;padding:64px 20px;display:flex}.auth-main{flex-direction:column;gap:24px;width:100%;max-width:400px;display:flex}.auth-main.is-wide{max-width:440px}.auth-brand{flex-direction:column;align-items:center;gap:6px;display:flex}.auth-brand .logo{font-size:36px}.auth-brand p{color:var(--sub);margin:0;font-size:14px}.auth-links{flex-direction:column;align-items:center;gap:4px;font-size:14px;display:flex}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card)}.form-card{flex-direction:column;gap:18px;padding:28px;display:flex}.card-head{flex-direction:column;gap:6px;display:flex}.card-head h1{margin:0;font-size:20px}.note{color:var(--sub);margin:0;font-size:13px;line-height:1.7}.field{flex-direction:column;gap:8px;font-size:14px;font-weight:700;display:flex}.field input{border:1px solid var(--field-line);border-radius:var(--radius-field);height:44px;font:inherit;color:var(--ink);background:var(--surface);padding:0 12px;font-size:14px;font-weight:400}.field 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48px}.school-content-inner{flex-direction:column;gap:24px;max-width:1040px;display:flex}.page-head{flex-direction:column;gap:6px;display:flex}.page-head h1{margin:0;font-size:28px;font-weight:700}.page-head p{color:var(--sub);margin:0;font-size:14px}@media (width<=799px){.school-nav{border-right:none;border-bottom:1px solid var(--line)}.school-content{padding:28px 16px}}.students-layout{flex-wrap:wrap;align-items:flex-start;gap:24px;display:flex}.students-list{flex:3 480px;min-width:0;padding:8px 0}.table-scroll{overflow-x:auto}.students-table{border-collapse:collapse;width:100%;min-width:520px;font-size:14px}.students-table th{text-align:left;color:var(--sub);padding:12px 8px;font-size:12px;font-weight:500}.students-table td{padding:10px 8px}.students-table tbody tr{border-top:1px solid #eef0f3}.students-table th:first-child,.students-table td:first-child{padding-left:20px}.students-table th:last-child,.students-table td:last-child{padding-right:20px}.students-table 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14px;display:flex}.finding-tags{display:contents}.part-tag{background:var(--warn-weak);color:var(--warn-text);border-radius:6px;padding:3px 10px;font-size:13px;font-weight:700}.low-tag{color:#3a3f4b;border:1px solid #9aa0ad;border-radius:6px;padding:3px 8px;font-size:12px}.finding-text{flex:240px;font-size:14px;line-height:1.6}.finding-play{border-radius:var(--radius-field);border:1px solid var(--field-line);background:var(--surface);min-height:44px;color:var(--accent);font:inherit;cursor:pointer;white-space:nowrap;padding:0 12px;font-size:13px}.segment-comment{border-radius:var(--radius-button);background:var(--accent-weak);flex-direction:column;gap:6px;padding:16px 18px;display:flex}.segment-comment>span{color:var(--accent);font-size:12px;font-weight:700}.segment-comment p{margin:0;font-size:15px;line-height:1.85}.segment-panel-student{gap:14px;padding:18px}.segment-panel-student .segment-head h2{font-size:15px}.segment-panel-student .segment-cell{min-height:52px}.segment-panel-student .segment-cell-score{font-size:17px}.segment-panel-student .segment-detail{gap:10px;padding-top:14px}.segment-panel-student .segment-detail-head h3{font-size:17px}.segment-panel-student .segment-range,.segment-panel-student .segment-score{font-size:13px}.segment-panel-student .finding-row{flex-direction:column;align-items:flex-start;gap:6px;padding:12px}.segment-panel-student .finding-tags{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.segment-panel-student .part-tag{padding:2px 8px;font-size:12px}.segment-panel-student .low-tag{padding:2px 8px;font-size:11px}.segment-panel-student .finding-text{flex:none}.segment-panel-student .segment-comment{gap:4px;padding:14px}.segment-panel-student .segment-comment p{font-size:14px}.deliver-page{flex-direction:column;gap:24px;max-width:820px;display:flex}.deliver-back{align-self:flex-start;font-size:14px}.deliver-form{flex-direction:column;gap:24px;display:flex}.deliver-result{align-items:center;gap:20px;padding:20px 24px;display:flex}.deliver-score{font-family:var(--font-num);color:var(--accent);font-size:40px;font-weight:700}.deliver-result-text{flex-direction:column;gap:2px;min-width:0;display:flex}.deliver-title{overflow-wrap:anywhere;font-size:16px;font-weight:700}.deliver-meta{color:var(--sub);font-size:13px}.deliver-to{flex-wrap:wrap;align-items:center;gap:12px;padding:18px 24px;display:flex}.deliver-to-label{font-size:14px;font-weight:700}.deliver-to-name{font-size:15px}.deliver-to .deliver-meta{font-size:12px}.deliver-message{font-size:15px}.deliver-message textarea{border:1px solid var(--field-line);border-radius:var(--radius-field);font:inherit;color:var(--ink);background:var(--surface);resize:vertical;padding:12px;font-size:14px;font-weight:400;line-height:1.7}.deliver-message textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}.deliver-actions{flex-wrap:wrap;justify-content:flex-end;gap:12px;display:flex}.btn-cancel{border-radius:var(--radius-button);min-height:48px;padding:0 22px;font-size:15px;text-decoration:none}.btn-cancel:hover{color:var(--ink)}.inbox-empty{color:var(--sub);margin:0 4px;font-size:14px}.inbox-card{color:var(--ink);align-items:center;gap:14px;padding:16px;text-decoration:none;display:flex}.inbox-card:hover{color:var(--ink);border-color:var(--field-line)}.inbox-card svg{flex:none}.inbox-score{background:var(--accent-weak);width:56px;height:56px;font-family:var(--font-num);color:var(--accent);border-radius:12px;flex:none;justify-content:center;align-items:center;font-size:22px;font-weight:700;display:flex}.inbox-text{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.inbox-title-row{align-items:center;gap:8px;min-width:0;display:flex}.inbox-title{overflow-wrap:anywhere;font-size:15px;font-weight:700}.inbox-new{background:var(--accent);color:#fff;border-radius:10px;flex:none;padding:1px 8px;font-size:11px;font-weight:700}.inbox-meta{color:var(--sub);font-size:12px}.student-header-back{padding:8px 12px}.back-link{align-items:center;gap:4px;min-height:44px;padding:0 8px;font-size:14px;text-decoration:none;display:inline-flex}.inbox-detail{gap:16px;min-width:0;padding:20px 16px 40px}.inbox-detail-head{flex-direction:column;gap:4px;padding:0 4px;display:flex}.student-main .inbox-detail-head h1{overflow-wrap:anywhere;margin:0;font-size:22px}.inbox-detail-head span{color:var(--sub);font-size:12px}.teacher-message{border-radius:12px;padding:14px 16px;font-size:14px;line-height:1.75}.teacher-message span{color:var(--sub);margin-bottom:4px;font-size:12px;font-weight:700;display:block}.teacher-message p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.student-score{align-items:center;gap:16px;padding:18px;display:flex}.student-score-number{font-family:var(--font-num);color:var(--accent);font-size:52px;font-weight:700;line-height:1}.student-score-subs{color:#3a3f4b;flex-direction:column;gap:2px;font-size:13px;display:flex}.inbox-detail .result-card{gap:12px;padding:18px}