.modal-overlay{position:fixed;inset:0;z-index:1000;background-color:#000000a6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:flex-end;justify-content:center;padding:0;margin:0;animation:modalFadeIn .2s ease-out;overflow:hidden}@keyframes modalFadeIn{0%{opacity:0}to{opacity:1}}.modal-sheet{position:relative;width:100%;max-width:540px;max-height:90dvh;max-height:calc(100dvh - 16px);background-color:var(--color-card-bg, #1c2128);border:1px solid var(--color-card-border, rgba(255, 255, 255, .08));border-top-left-radius:var(--radius-lg, 20px);border-top-right-radius:var(--radius-lg, 20px);border-bottom-left-radius:0;border-bottom-right-radius:0;box-shadow:0 16px 36px #00000073;display:flex;flex-direction:column;animation:modalSheetSlideUp .26s cubic-bezier(.16,1,.3,1);overflow:hidden;box-sizing:border-box}@keyframes modalSheetSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes modalDialogPop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}@media (min-width: 640px){.modal-overlay{align-items:center;padding:24px 16px}.modal-sheet{border-radius:var(--radius-lg, 20px);max-height:min(88dvh,760px);animation:modalDialogPop .22s cubic-bezier(.16,1,.3,1)}}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--color-card-border, rgba(255, 255, 255, .08));background-color:var(--color-card-bg, #1c2128);flex-shrink:0}.modal-title{font-size:18px;font-weight:700;color:var(--color-text-primary, #f0f6fc);line-height:1.3;margin:0}.modal-close-btn,.icon-btn{min-width:44px;min-height:44px;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-md, 14px);color:var(--color-text-secondary, #8b949e);background:transparent;border:none;cursor:pointer;font-size:18px;line-height:1;transition:background-color .15s ease,color .15s ease;flex-shrink:0}.modal-close-btn:hover:not(:disabled),.icon-btn:hover:not(:disabled){background-color:var(--color-bg-tertiary, #21262d);color:var(--color-text-primary, #f0f6fc)}.modal-close-btn:focus-visible,.icon-btn:focus-visible{outline:2px solid var(--color-accent, #2f81f7);outline-offset:2px}.modal-close-btn:disabled,.icon-btn:disabled{opacity:.4;cursor:not-allowed}.modal-body{flex:1 1 auto;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:18px 20px;display:flex;flex-direction:column;gap:16px;overscroll-behavior:contain}.modal-actions{position:sticky;bottom:0;z-index:10;display:flex;gap:12px;align-items:center;justify-content:flex-end;padding:14px 20px calc(var(--safe-bottom, 0px) + 14px) 20px;background-color:var(--color-card-bg, #1c2128);border-top:1px solid var(--color-card-border, rgba(255, 255, 255, .08));flex-shrink:0}@media (max-width: 360px){.modal-actions{flex-direction:column-reverse;gap:8px}.modal-actions 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#21262d)}.btn-primary:focus-visible,.btn-secondary:focus-visible{outline:2px solid var(--color-accent, #2f81f7);outline-offset:2px}.btn-primary:disabled,.btn-secondary:disabled{opacity:.55;cursor:not-allowed}.rating-criterion{display:flex;flex-direction:column;gap:8px;padding:14px;background-color:var(--color-bg-secondary, #161b22);border:1px solid var(--color-card-border, rgba(255, 255, 255, .08));border-radius:var(--radius-md, 14px)}.criterion-header{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.criterion-title{font-size:14px;font-weight:600;color:var(--color-text-primary, #f0f6fc);margin:0;line-height:1.35}.criterion-optional-tag{font-size:11px;font-weight:500;color:var(--color-text-muted, #6e7681);padding:2px 6px;border-radius:var(--radius-sm, 8px);background-color:var(--color-bg-tertiary, #21262d)}.stars-selector{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}.star-btn{min-width:44px;min-height:44px;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;font-size:26px;line-height:1;border-radius:var(--radius-sm, 8px);color:var(--color-text-muted, #6e7681);background:transparent;border:none;cursor:pointer;transition:transform .12s ease,color .12s ease,background-color .12s ease;user-select:none;-webkit-user-select:none}.star-btn:hover:not(:disabled){background-color:var(--color-accent-soft, rgba(47, 129, 247, .15));color:#e3b341}.star-btn.active{color:#e3b341}.star-btn:active:not(:disabled){transform:scale(1.18)}.star-btn:focus-visible{outline:2px solid var(--color-accent, #2f81f7);outline-offset:2px}.star-btn:disabled{opacity:.5;cursor:not-allowed}.criterion-description{display:block;font-size:13px;font-weight:500;line-height:1.4;color:var(--color-text-secondary, #8b949e);margin-top:2px;min-height:18px}.difficulty-skip-btn{min-height:44px;padding:0 14px;font-size:13px;font-weight:500;border-radius:var(--radius-sm, 8px);border:1px dashed var(--color-card-border, rgba(255, 255, 255, .12));color:var(--color-text-secondary, #8b949e);background-color:transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;margin-top:4px;width:100%;transition:background-color .15s ease,color .15s ease,border-color .15s ease}.difficulty-skip-btn:hover:not(:disabled){background-color:var(--color-bg-tertiary, #21262d);color:var(--color-text-primary, #f0f6fc);border-color:var(--color-text-secondary, #8b949e)}.difficulty-skip-btn.is-skipped{border-style:solid;border-color:var(--color-accent, #2f81f7);color:var(--color-accent, #2f81f7);background-color:var(--color-accent-soft, rgba(47, 129, 247, .12))}.difficulty-skip-btn:focus-visible{outline:2px solid var(--color-accent, #2f81f7);outline-offset:2px}.difficulty-skip-btn:disabled{opacity:.5;cursor:not-allowed}.form-group{display:flex;flex-direction:column;gap:6px}.form-label-row{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--color-text-primary, #f0f6fc);margin:0;line-height:1.4}.char-counter{font-size:12px;font-weight:500;color:var(--color-text-muted, #6e7681)}.char-counter.is-near-limit{color:var(--color-warning, #d29922)}.char-counter.is-limit{color:var(--color-danger, #da3633)}.form-textarea{width:100%;min-height:96px;padding:12px 14px;background-color:var(--color-bg-secondary, #161b22);border:1px solid var(--color-card-border, rgba(255, 255, 255, .12));border-radius:var(--radius-md, 14px);color:var(--color-text-primary, #f0f6fc);font-size:14px;line-height:1.45;resize:vertical;outline:none;box-sizing:border-box;transition:border-color .15s ease,box-shadow .15s ease}.form-textarea:focus{border-color:var(--color-accent, #2f81f7);box-shadow:0 0 0 2px var(--color-accent-soft, rgba(47, 129, 247, .15))}.form-textarea:disabled{opacity:.6;cursor:not-allowed}.form-errors{padding:10px 14px;border-radius:var(--radius-md, 14px);background-color:var(--color-danger-soft, rgba(218, 54, 51, .15));border:1px solid var(--color-danger, #da3633);color:var(--color-danger, #da3633);font-size:13px;font-weight:500;line-height:1.4;margin:0}.modal-privacy-note{font-size:12px;line-height:1.45;color:var(--color-text-muted, #6e7681);padding:8px 12px;border-radius:var(--radius-sm, 8px);background-color:var(--color-bg-secondary, #161b22);border:1px solid var(--color-card-border, rgba(255, 255, 255, .05))}.reason-options{display:flex;flex-direction:column;gap:8px}.reason-option{min-height:44px;display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius-md, 14px);background-color:var(--color-bg-secondary, #161b22);border:1px solid var(--color-card-border, rgba(255, 255, 255, .08));cursor:pointer;font-size:14px;color:var(--color-text-primary, #f0f6fc);transition:border-color .15s ease,background-color .15s ease;user-select:none;-webkit-user-select:none;box-sizing:border-box}.reason-option:hover{background-color:var(--color-bg-tertiary, #21262d)}.reason-option.selected{background-color:var(--color-accent-soft, rgba(47, 129, 247, .14));border-color:var(--color-accent, #2f81f7)}.reason-option input[type=radio]{min-width:20px;min-height:20px;width:20px;height:20px;accent-color:var(--color-accent, #2f81f7);cursor:pointer;margin:0}.reason-option:focus-within{outline:2px solid var(--color-accent, #2f81f7);outline-offset:2px}.workspace-form{background-color:var(--color-card-bg, #1c2128);border:1px solid var(--color-card-border, rgba(255, 255, 255, .08));border-radius:var(--radius-lg, 16px);padding:18px;display:flex;flex-direction:column;gap:14px;box-sizing:border-box}.workspace-form-actions{display:flex;gap:10px;align-items:center;margin-top:4px}.channel-sub-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;font-weight:600;text-decoration:none}.teacher-page{display:flex;flex-direction:column;gap:16px;width:100%;max-width:100%;overflow-x:hidden;word-break:break-word}.teacher-hero-card{background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-lg);padding:16px 18px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px}.teacher-hero-header{display:flex;align-items:flex-start;gap:14px}.teacher-hero-avatar{width:52px;height:52px;min-width:52px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-accent),#8a2be2);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:#fff;flex-shrink:0;box-shadow:0 4px 12px #2f81f740}.teacher-hero-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.teacher-hero-fio{font-size:18px;font-weight:800;line-height:1.25;color:var(--color-text-primary);margin:0;overflow-wrap:anywhere}.teacher-hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:2px}.teacher-badge-uni{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);background:var(--color-accent-soft);color:var(--color-accent);font-size:12px;font-weight:700;letter-spacing:.2px}.teacher-badge-position{font-size:13px;color:var(--color-text-secondary);line-height:1.35}.teacher-hero-department{font-size:12px;color:var(--color-text-muted);line-height:1.35;overflow-wrap:anywhere}.teacher-hero-stats{display:flex;align-items:stretch;background:var(--color-bg-secondary);border:1px solid var(--color-card-border);border-radius:var(--radius-md);padding:10px 14px;gap:12px}.teacher-stat-col{display:flex;flex-direction:column;justify-content:center}.teacher-stat-rating{flex:1.1;min-width:0}.teacher-stat-count{flex:.9;min-width:0}.teacher-stat-divider{width:1px;background:var(--color-card-border);align-self:stretch}.teacher-stat-val{font-size:22px;font-weight:800;line-height:1.1;color:var(--color-text-primary);display:flex;align-items:baseline;gap:4px;flex-wrap:wrap}.teacher-stat-val-highlight{color:var(--color-accent)}.teacher-stat-val-empty{font-size:14px;font-weight:600;color:var(--color-text-muted)}.teacher-stat-star{color:#e3b341;font-size:18px}.teacher-stat-max{font-size:12px;font-weight:500;color:var(--color-text-muted)}.teacher-stat-label{font-size:11px;color:var(--color-text-secondary);margin-top:3px;line-height:1.25}.teacher-primary-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.teacher-btn-action-primary,.teacher-btn-action-question{min-height:44px;padding:10px 14px;border-radius:var(--radius-md);font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-align:center;transition:all .15s ease;user-select:none}.teacher-btn-action-primary{background:var(--color-accent);color:var(--color-accent-text);box-shadow:0 4px 14px var(--color-accent-soft)}.teacher-btn-action-primary:active{transform:scale(.98)}.teacher-btn-action-question{background:var(--color-bg-secondary);color:var(--color-text-primary);border:1px solid var(--color-card-border)}.teacher-btn-action-question:active{transform:scale(.98);background:var(--color-bg-tertiary)}.teacher-secondary-actions{display:flex;gap:8px;align-items:center}.teacher-btn-compact{flex:1;min-height:44px;padding:8px 12px;border-radius:var(--radius-md);background:var(--color-bg-primary);border:1px solid var(--color-card-border);color:var(--color-text-secondary);font-size:13px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:all .15s ease}.teacher-btn-compact:disabled{opacity:.6;cursor:default}.teacher-btn-compact:active:not(:disabled){transform:scale(.98);background:var(--color-bg-secondary)}.teacher-btn-compact.is-active{color:var(--color-accent);border-color:var(--color-accent);background:var(--color-accent-soft)}.teacher-btn-compact svg{flex-shrink:0}.teacher-details-accordion{border-top:1px solid var(--color-card-border);padding-top:10px}.teacher-details-summary{cursor:pointer;color:var(--color-text-secondary);font-size:13px;font-weight:600;padding:8px 0;display:flex;align-items:center;justify-content:space-between;user-select:none;min-height:44px}.teacher-details-summary:hover{color:var(--color-text-primary)}.teacher-details-accordion[open] .teacher-details-summary{color:var(--color-accent)}.teacher-details-content{padding:12px 0 4px;display:flex;flex-direction:column;gap:14px}.teacher-details-empty-note{font-size:13px;color:var(--color-text-muted);font-style:italic;padding:4px 0}.teacher-tabs-nav{display:flex;background:var(--color-bg-secondary);border:1px solid var(--color-card-border);border-radius:var(--radius-md);padding:4px;gap:4px}.teacher-tab-btn{flex:1;min-height:44px;padding:8px 10px;border-radius:calc(var(--radius-md) - 3px);font-size:13.5px;font-weight:600;color:var(--color-text-secondary);display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:all .15s ease;user-select:none;background:transparent;border:none}.teacher-tab-btn:hover{color:var(--color-text-primary)}.teacher-tab-btn[aria-selected=true]{background:var(--color-card-bg);color:var(--color-accent);box-shadow:var(--shadow-sm);font-weight:700}.teacher-tab-count{display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;padding:1px 6px;border-radius:var(--radius-full);background:var(--color-bg-tertiary);color:var(--color-text-secondary)}.teacher-tab-btn[aria-selected=true] .teacher-tab-count{background:var(--color-accent-soft);color:var(--color-accent)}.teacher-tab-panel{display:flex;flex-direction:column;gap:12px;width:100%}.teacher-panel-header{display:flex;justify-content:space-between;align-items:center;padding:2px 0}.teacher-panel-title{font-size:16px;font-weight:700;color:var(--color-text-primary);margin:0}.teacher-panel-action{font-size:13px;font-weight:600;color:var(--color-accent);min-height:44px;padding:8px 12px;display:inline-flex;align-items:center;border-radius:var(--radius-sm)}.teacher-panel-action:hover{background:var(--color-accent-soft)}.teacher-comment-card{padding:14px 16px;background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:8px}.teacher-comment-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.teacher-comment-author{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.teacher-author-name{font-weight:700;font-size:14px;color:var(--color-text-primary)}.teacher-comment-rating{font-size:12px;font-weight:700;padding:2px 8px;border-radius:var(--radius-full);color:#fff;flex-shrink:0}.teacher-comment-body{font-size:14.5px;line-height:1.55;color:var(--color-text-primary);margin:4px 0;overflow-wrap:anywhere;white-space:pre-wrap}.teacher-comment-footer{display:flex;justify-content:space-between;align-items:center;padding-top:8px;border-top:1px solid var(--color-card-border);font-size:12px;color:var(--color-text-muted)}.teacher-comment-actions{display:flex;align-items:center;gap:8px}.teacher-btn-like{display:inline-flex;align-items:center;gap:5px;min-height:44px;padding:6px 10px;border-radius:var(--radius-sm);background:var(--color-bg-secondary);color:var(--color-text-secondary);font-size:13px;font-weight:600;transition:all .15s ease}.teacher-btn-like.is-liked{color:var(--color-danger);background:var(--color-danger-soft)}.teacher-btn-report{min-height:44px;padding:6px 8px;color:var(--color-text-muted);font-size:12px}.teacher-btn-report:hover{color:var(--color-danger)}.teacher-pagination-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0}.teacher-pagination-info{font-size:12px;color:var(--color-text-muted);text-align:center}.teacher-state-box{background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-md);padding:24px 16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}.teacher-state-icon{font-size:32px;line-height:1}.teacher-state-title{font-size:16px;font-weight:700;color:var(--color-text-primary)}.teacher-state-desc{font-size:13px;color:var(--color-text-secondary);max-width:320px;margin:0 auto;line-height:1.45}.teacher-community-panel{display:flex;flex-direction:column;gap:12px}.teacher-record-card{padding:14px 16px;background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-md);display:flex;flex-direction:column;gap:6px}.teacher-record-text{font-size:14.5px;line-height:1.5;color:var(--color-text-primary);margin:0;overflow-wrap:anywhere;white-space:pre-wrap}.teacher-record-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;font-size:12px;color:var(--color-text-muted)}.teacher-record-action{margin-top:4px;align-self:flex-start}.teacher-exam-row{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.teacher-exam-type{font-weight:700;font-size:14px;color:var(--color-text-primary)}.teacher-exam-date{font-weight:700;font-size:14px;color:var(--color-accent)}.teacher-form-box{background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-lg);padding:16px;margin-bottom:8px}.teacher-notice-banner{padding:10px 14px;border-radius:var(--radius-md);background:var(--color-accent-soft);color:var(--color-text-primary);font-size:13px;line-height:1.4;margin-bottom:6px}@media (max-width: 350px){.teacher-hero-card{padding:12px 14px}.teacher-hero-avatar{width:44px;height:44px;min-width:44px;font-size:18px}.teacher-hero-fio{font-size:16px}.teacher-primary-actions{grid-template-columns:1fr}.teacher-tab-btn{font-size:12px;padding:6px 4px}}@media (min-width: 600px){.teacher-hero-card{padding:20px 24px}.teacher-hero-fio{font-size:22px}.teacher-hero-stats{padding:12px 20px}.teacher-stat-val{font-size:26px}}:root{--color-bg-primary: #0b1120;--color-bg-secondary: #111c33;--color-bg-tertiary: #1e2e4f;--color-card-bg: #15223c;--color-card-border: rgba(255, 255, 255, .08);--color-text-primary: #f8fafc;--color-text-secondary: #cbd5e1;--color-text-muted: #94a3b8;--color-accent: #38bdf8;--color-accent-hover: #0ea5e9;--color-accent-text: #041226;--color-accent-soft: rgba(56, 189, 248, .14);--color-success: #4ade80;--color-success-soft: rgba(74, 222, 128, .16);--color-warning: #fbbf24;--color-warning-soft: rgba(251, 191, 36, .16);--color-danger: #f87171;--color-danger-soft: rgba(248, 113, 113, .16);--radius-xs: 6px;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 20px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .2);--shadow-md: 0 4px 14px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 28px rgba(0, 0, 0, .4);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);color-scheme:dark}[data-theme=light]{--color-bg-primary: #f8fafc;--color-bg-secondary: #ffffff;--color-bg-tertiary: #f1f5f9;--color-card-bg: #ffffff;--color-card-border: rgba(15, 23, 42, .08);--color-text-primary: #0f172a;--color-text-secondary: #334155;--color-text-muted: #475569;--color-accent: #0369a1;--color-accent-hover: #075985;--color-accent-text: #ffffff;--color-accent-soft: rgba(3, 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var(--color-accent);outline-offset:2.5px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.app-container{display:flex;flex-direction:column;min-height:100vh;padding-bottom:calc(var(--safe-bottom) + 84px)}.screen-content{flex:1;padding:16px;max-width:680px;margin:0 auto;width:100%}.section-header-block{margin-bottom:14px}.section-title{font-size:19px;font-weight:700;color:var(--color-text-primary);line-height:1.3}.section-subtitle{font-size:13px;color:var(--color-text-secondary);margin-top:2px}.section-heading{font-size:17px;font-weight:700;color:var(--color-text-primary)}.section-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:16px}.app-header{position:sticky;top:0;z-index:50;background:var(--color-bg-secondary);border-bottom:1px solid var(--color-card-border);padding:calc(var(--safe-top) + 8px) 16px 8px 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ease}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn-primary.btn-danger{background:var(--color-danger);color:#fff}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;background:var(--color-bg-tertiary);color:var(--color-text-primary);border-radius:var(--radius-sm);font-size:14px;font-weight:600;border:1px solid var(--color-card-border);cursor:pointer;text-decoration:none;transition:background .15s ease,transform .1s ease}.btn-secondary:active{transform:scale(.98)}.btn-secondary:disabled{opacity:.55;cursor:not-allowed;transform:none}.icon-btn{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;width:44px;height:44px;border-radius:var(--radius-full);background:var(--color-bg-tertiary);color:var(--color-text-primary);border:1px solid var(--color-card-border);cursor:pointer;transition:transform .15s ease,background .15s 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toastIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.toast-success{background:#15803d}.toast-error{background:#b91c1c}.toast-info{background:#0369a1}@media (max-width: 360px){.screen-content{padding:12px}.action-grid{grid-template-columns:1fr}.bottom-nav{padding-left:6px;padding-right:6px}.bottom-nav-item{min-height:44px}}