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var(--accent);box-shadow:var(--glow-shadow);transform:rotateX(180deg)}.lp-card-header{justify-content:space-between;align-items:center;width:100%;display:flex}.lp-card-badge{text-transform:uppercase;letter-spacing:.05em;background:var(--accent-bg);color:var(--accent);border-radius:6px;padding:4px 10px;font-size:10px;font-weight:800}.lp-card-audio{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:6px;transition:background-color .2s,color .2s;display:inline-flex}.lp-card-audio:hover{background:var(--accent-bg);color:var(--accent)}.lp-card-body{flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.lp-card-hanzi{color:var(--text-h);font-size:48px;font-weight:800;line-height:1.2}.lp-card-pinyin{color:var(--accent);margin-top:8px;font-size:18px;font-weight:600}.lp-card-meaning{color:var(--text-h);text-align:center;font-size:20px;font-weight:700}.lp-card-example{color:var(--text-muted);text-align:center;margin-top:10px;font-size:13px;font-style:italic;line-height:1.4}.lp-card-footer{text-align:center;color:var(--text-muted);width:100%;font-size:11px;font-weight:600}.lp-preview-actions{align-items:center;gap:16px;margin-top:1.5rem;display:flex}.lp-preview-indicator{color:var(--text-muted);font-size:12px;font-weight:700}.lp-section-title{color:var(--text-h);letter-spacing:-.02em;margin-bottom:.5rem;font-size:22px;font-weight:800}.lp-section-subtitle{color:var(--text-muted);margin-bottom:2rem;font-size:14.5px}.lp-features-grid{grid-template-columns:1fr;gap:20px;display:grid}@media (width>=768px){.lp-features-grid{grid-template-columns:repeat(2,1fr)}}@media (width>=1024px){.lp-features-grid{grid-template-columns:repeat(4,1fr)}}.lp-feature-card{flex-direction:column;align-items:flex-start;gap:14px;padding:24px;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex}.lp-feature-card:hover{border-color:var(--accent);transform:translateY(-6px);box-shadow:0 10px 30px #4255ff1a}.lp-feature-icon{background:var(--accent-bg);width:44px;height:44px;color:var(--accent);border-radius:12px;justify-content:center;align-items:center;display:flex}.lp-feature-icon svg{width:24px;height:24px}.lp-feature-card h3{color:var(--text-h);margin:0;font-size:16px;font-weight:800}.lp-feature-card p{color:var(--text);margin:0;font-size:13px;line-height:1.5}.lp-faq-container{flex-direction:column;gap:12px;width:100%;max-width:800px;margin:0 auto;display:flex}.lp-faq-item{border-radius:12px;transition:border-color .2s;overflow:hidden}.lp-faq-header{cursor:pointer;text-align:left;width:100%;color:var(--text-h);background:0 0;border:none;justify-content:space-between;align-items:center;padding:16px 20px;font-size:15px;font-weight:700;transition:background-color .2s;display:flex}.lp-faq-header:hover{background:var(--accent-bg);color:var(--accent)}.lp-faq-icon{width:20px;height:20px;color:var(--text-muted);transition:transform .2s}.lp-faq-item--open{border-color:var(--accent)}.lp-faq-item--open .lp-faq-icon{color:var(--accent);transform:rotate(180deg)}.lp-faq-body{color:var(--text);padding:0 20px 16px;font-size:13.5px;line-height:1.5;animation:.2s cubic-bezier(.16,1,.3,1) slideDownFade}.lp-footer{border-top:1px solid var(--border);text-align:center;flex-direction:column;align-items:center;gap:8px;width:100%;margin-top:-1rem;padding:2.5rem 0 0;display:flex}.lp-footer__brand{color:var(--text-h);opacity:.8;font-size:15px;font-weight:700}.lp-footer__links{color:var(--text-muted);gap:20px;font-size:13px;display:flex}.lp-footer__links a{color:inherit;text-decoration:none}.lp-footer__links a:hover{color:var(--accent)}.lp-footer__copy{color:var(--text-muted);opacity:.8;font-size:12px}.db-welcome-section{flex-direction:column;gap:1.5rem;padding:2.5rem 0 1rem;display:flex}@media (width>=768px){.db-welcome-section{flex-direction:row;justify-content:space-between;align-items:center}}.db-greeting h1{color:var(--text-h);letter-spacing:-.02em;font-size:24px;font-weight:800}.db-greeting p{color:var(--text-muted);margin-top:4px;font-size:13.5px}.db-stats-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}@media (width>=1024px){.db-stats-grid{grid-template-columns:repeat(4,1fr)}}.db-stat-card{align-items:center;gap:16px;padding:20px;display:flex}.db-stat-icon{background:var(--accent-bg);width:44px;height:44px;color:var(--accent);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.db-stat-icon svg{width:22px;height:22px}.db-stat-icon--success{color:#10b981;background:#10b98114}.db-stat-info{flex-direction:column;display:flex}.db-stat-value{color:var(--text-h);font-size:24px;font-weight:800;line-height:1.1}.db-stat-label{color:var(--text-muted);margin-top:2px;font-size:12px;font-weight:600}.db-main-content{grid-template-columns:1fr;gap:2.5rem;display:grid}@media (width>=1024px){.db-main-content{grid-template-columns:1.6fr 1fr}}.db-section{flex-direction:column;display:flex}.db-section-header{justify-content:space-between;align-items:center;margin-bottom:1.25rem;display:flex}.db-section-title{color:var(--text-h);letter-spacing:-.01em;margin:0;font-size:18px;font-weight:800}.db-section-link{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;font-weight:700}.db-section-link:hover{text-decoration:underline}.db-folders-grid{grid-template-columns:1fr;gap:16px;display:grid}@media (width>=640px){.db-folders-grid--cols-2{grid-template-columns:repeat(2,1fr)}}.db-folder-card{cursor:pointer;flex-direction:column;justify-content:space-between;min-height:140px;padding:20px;text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex}.db-folder-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 24px #4255ff14}.db-folder-header{align-items:flex-start;gap:12px;display:flex}.db-folder-icon{color:var(--accent);flex-shrink:0;margin-top:2px}.db-folder-title{color:var(--text-h);margin:0;font-size:15.5px;font-weight:700;line-height:1.3}.db-folder-desc{color:var(--text-muted);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin-top:4px;font-size:12.5px;display:-webkit-box;overflow:clip}.db-folder-meta{color:var(--text-muted);text-transform:uppercase;letter-spacing:.02em;justify-content:space-between;align-items:center;margin-top:16px;font-size:11px;font-weight:700;display:flex}.db-folder-arrow{color:var(--accent);opacity:0;transition:all .2s;transform:translate(-4px)}.db-folder-card:hover .db-folder-arrow{opacity:1;transform:translate(0)}.db-empty-library{text-align:center;flex-direction:column;align-items:center;gap:14px;padding:3rem 2rem;display:flex}.db-empty-icon{width:56px;height:56px;color:var(--text-muted);opacity:.6}.db-empty-title{color:var(--text-h);margin:0;font-size:16px;font-weight:800}.db-empty-desc{color:var(--text-muted);max-width:320px;margin:0;font-size:13px}.db-activity-list{flex-direction:column;gap:12px;display:flex}.db-activity-card{flex-direction:column;gap:10px;padding:16px;display:flex}.db-activity-top{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.db-activity-info{flex-direction:column;gap:2px;display:flex}.db-activity-title{color:var(--text-h);font-size:14px;font-weight:700;text-decoration:none}.db-activity-title:hover{color:var(--accent);text-decoration:underline}.db-activity-folder{color:var(--text-muted);font-size:11px;font-weight:600}.db-activity-time{color:var(--text-muted);white-space:nowrap;font-size:11px}.db-modes-row{flex-wrap:wrap;gap:6px;margin-top:4px;display:flex}.db-mode-badge{background:var(--surface-alt);color:var(--text);border:1px solid var(--border);border-radius:6px;align-items:center;gap:4px;padding:3px 8px;font-size:10.5px;font-weight:700;display:inline-flex}.db-mode-badge--completed{color:#10b981;background:#10b98114;border-color:#10b98133}.db-mode-badge--active{background:var(--accent-bg);color:var(--accent);border-color:var(--accent-border)}.db-mode-badge-dot{background:currentColor;border-radius:50%;width:5px;height:5px}.db-streak-card{flex-direction:column;gap:16px;padding:24px;display:flex}.db-streak-header{align-items:center;gap:12px;display:flex}.db-streak-fire{font-size:24px;animation:1.5s infinite alternate fireFlicker}@keyframes fireFlicker{0%{filter:drop-shadow(0 0 2px #ef444433);transform:scale(1)rotate(-3deg)}to{filter:drop-shadow(0 0 8px #ef444466);transform:scale(1.08)rotate(3deg)}}.db-streak-title{color:var(--text-h);margin:0;font-size:15px;font-weight:800}.db-streak-days{justify-content:space-between;width:100%;margin-top:4px;display:flex}.db-streak-day-item{flex-direction:column;align-items:center;gap:8px;display:flex}.db-streak-day-circle{background:var(--surface-alt);border:1px solid var(--border);width:32px;height:32px;color:var(--text-muted);border-radius:50%;justify-content:center;align-items:center;font-size:11px;font-weight:700;transition:all .3s;display:flex}.db-streak-day-circle--active{background:var(--gradient-primary);color:#fff;border:none;box-shadow:0 4px 10px #4255ff40}.db-streak-day-label{color:var(--text-muted);font-size:11px;font-weight:700}.folder-detail{max-width:1040px;min-height:80vh;margin:0 auto;padding:1rem 1rem 120px;position:relative}.folder-header{justify-content:space-between;align-items:center;gap:1.5rem;margin-bottom:2rem;padding-top:1rem;display:flex}.folder-header__left{align-items:center;gap:1.25rem;display:flex}.folder-header__icon{background:var(--bg);border:1px solid var(--border);width:56px;height:56px;color:var(--text-h);box-shadow:var(--shadow);border-radius:12px;justify-content:center;align-items:center;display:flex}.folder-header__icon svg{width:28px;height:28px}.folder-header__title-container{flex-direction:column;display:flex}.folder-header__title{color:var(--text-h);letter-spacing:-.04em;margin:0;font-size:2.25rem;font-weight:800;line-height:1.1}.folder-header__description{color:var(--text-muted);margin-top:.25rem;font-size:.95rem}.dropdown-container{display:inline-block;position:relative}.action-dot-btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;width:40px;height:40px;color:var(--text);border-radius:50%;justify-content:center;align-items:center;transition:all .2s;display:flex}.action-dot-btn:hover{background:var(--surface-alt);color:var(--text-h);border-color:var(--text-muted);transform:scale(1.05)}.action-dot-btn svg{width:20px;height:20px}.dropdown-menu{background:var(--surface);border:1px solid var(--border);z-index:50;border-radius:14px;width:220px;margin:0;padding:8px;list-style:none;animation:.15s cubic-bezier(.16,1,.3,1) forwards dropdownFadeIn;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 10px 30px -10px #00000026,0 1px 3px #0000000d}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(-8px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.dropdown-item{width:100%;color:var(--text);text-align:left;cursor:pointer;box-sizing:border-box;background:0 0;border:none;border-radius:8px;align-items:center;gap:12px;padding:10px 14px;font-size:.9rem;font-weight:500;transition:all .15s;display:flex}.dropdown-item:hover{background:var(--accent-bg);color:var(--accent)}.dropdown-item svg{stroke-width:2px;flex-shrink:0;width:16px;height:16px}.dropdown-item--danger{color:#dc2626!important}.dropdown-item--danger:hover{color:#dc2626!important;background:#dc262614!important}.folder-controls{border-bottom:1px solid var(--border);flex-direction:column;gap:1rem;margin-bottom:2rem;padding-bottom:1.5rem;display:flex}@media (width>=768px){.folder-controls{flex-direction:row;justify-content:space-between;align-items:center}}.folder-controls__left{align-items:center;gap:10px;display:flex}.filter-btn{cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:20px;padding:8px 16px;font-size:.85rem;font-weight:600;transition:all .2s}.filter-btn--active{background:var(--text-h);color:var(--surface);border-color:var(--text-h)}.filter-btn:not(.filter-btn--active):hover{background:var(--surface-alt);color:var(--text-h)}.sort-label{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:6px;padding:6px 10px;font-size:.85rem;font-weight:500;transition:background-color .2s;display:inline-flex}.sort-label:hover{background-color:var(--surface-alt);color:var(--text-h)}.sort-label svg{width:14px;height:14px}.folder-search{width:100%;max-width:320px;position:relative}.folder-search__input{background:var(--surface-alt);width:100%;color:var(--text-h);box-sizing:border-box;border:1px solid #0000;border-radius:12px;outline:none;padding:10px 14px 10px 38px;font-size:.9rem;font-weight:500;transition:all .2s}.folder-search__input:focus{background:var(--surface);border-color:var(--accent-border);box-shadow:0 0 0 3px var(--accent-bg)}.folder-search__icon{width:16px;height:16px;color:var(--text-muted);pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.lessons-list{flex-direction:column;gap:.75rem;margin-bottom:2rem;display:flex}.lesson-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem;transition:all .2s;display:flex}.lesson-card:hover{border-color:var(--accent-border);box-shadow:var(--shadow);transform:translateY(-2px)}.lesson-card__left{flex-grow:1;align-items:center;gap:1.25rem;display:flex}.lesson-card__icon{background:var(--accent-bg);width:44px;height:44px;color:var(--accent);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.lesson-card__icon svg{width:22px;height:22px}.lesson-card__details{flex-direction:column;display:flex}.lesson-card__title{color:var(--text-h);margin:0;font-size:1.05rem;font-weight:700}.lesson-card__meta{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:6px;margin-top:.25rem;font-size:.825rem;display:flex}.lesson-card__dot{opacity:.5}.empty-lessons{text-align:center;background:var(--surface);border:2px dashed var(--border);color:var(--text-muted);border-radius:16px;flex-direction:column;align-items:center;gap:.75rem;padding:3rem 1.5rem;display:flex}.empty-lessons__icon{opacity:.5;width:48px;height:48px;color:var(--text-muted)}.empty-lessons h3{color:var(--text-h);margin:0;font-size:1.15rem}.floating-bar-container{pointer-events:none;z-index:20;justify-content:center;padding:0 16px;display:flex;position:fixed;bottom:24px;left:0;right:0}.floating-bar{pointer-events:auto;-webkit-backdrop-filter:blur(16px);background:#fffc;border:1px solid #fff6;border-radius:30px;align-items:center;gap:8px;padding:6px;display:flex;box-shadow:0 10px 40px -10px #0000001f,0 1px 3px #0000000d}.dark .floating-bar{background:#1a1b2dcc;border-color:#ffffff0d;box-shadow:0 10px 40px -10px #00000080}.floating-bar__btn{cursor:pointer;border:none;border-radius:24px;align-items:center;gap:8px;padding:10px 24px;font-size:.9rem;font-weight:700;transition:all .2s;display:inline-flex}.floating-bar__btn--secondary{background:var(--surface-alt);color:var(--text-h)}.floating-bar__btn--secondary:hover{background:var(--border);transform:translateY(-1px)}.floating-bar__btn--primary{background:var(--accent);color:#fff}.floating-bar__btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px #4255ff4d}.folder-dialog{width:90%;max-width:480px;box-shadow:var(--shadow);background:0 0;border:none;border-radius:20px;margin:120px auto auto;padding:0}.folder-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172a4d}.folder-modal-content{background:var(--surface);border:1px solid var(--border);border-radius:20px;flex-direction:column;gap:1.25rem;padding:1.75rem;display:flex}.folder-modal-content__title{color:var(--text-h);margin:0;font-size:1.35rem;font-weight:700}.folder-modal-content__fields{flex-direction:column;gap:1rem;display:flex}.folder-modal-content__label{color:var(--text-muted);flex-direction:column;gap:6px;font-size:.85rem;font-weight:600;display:flex}.folder-modal-content__input,.folder-modal-content__textarea{border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text-h);box-sizing:border-box;border-radius:10px;outline:none;padding:10px 12px;font-family:inherit;font-size:.925rem;transition:all .2s}.folder-modal-content__input:focus,.folder-modal-content__textarea:focus{background:var(--surface);border-color:var(--accent-border);box-shadow:0 0 0 3px var(--accent-bg)}.folder-modal-content__textarea{resize:vertical;min-height:80px}.folder-modal-content__error{color:#dc2626;margin:0;font-size:.825rem}.folder-modal-content__actions{justify-content:flex-end;align-items:center;gap:10px;margin-top:.5rem;display:flex}.folder-modal-content__btn{cursor:pointer;border:none;border-radius:10px;padding:10px 18px;font-size:.9rem;font-weight:700;transition:all .15s}.folder-modal-content__btn--cancel{color:var(--text-muted);background:0 0}.folder-modal-content__btn--cancel:hover{background:var(--surface-alt);color:var(--text-h)}.folder-modal-content__btn--submit{background:var(--accent);color:#fff}.folder-modal-content__btn--submit:hover:not(:disabled){background:var(--accent-hover)}.folder-modal-content__btn--submit:disabled{opacity:.5;cursor:not-allowed}.toast-msg{color:#fff;box-shadow:var(--shadow);z-index:200;background:#10b981;border-radius:10px;align-items:center;gap:8px;padding:12px 20px;font-size:.9rem;font-weight:600;animation:.3s cubic-bezier(.16,1,.3,1) forwards toastFadeIn;display:flex;position:fixed;top:72px;right:20px}@keyframes toastFadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.clone-dialog{max-width:460px}.clone-dialog__icon{text-align:center;font-size:2.5rem;line-height:1}.clone-dialog__desc{color:var(--text);margin:0;font-size:.95rem;line-height:1.55}.clone-dialog__note{color:var(--text-muted);background:var(--accent-bg);border:1px solid var(--border);border-radius:10px;margin:0;padding:10px 14px;font-size:.85rem;line-height:1.5}.clone-dialog__note--warn{color:#b45309;background:#eab30814;border-color:#eab30840}.clone-dialog__options{flex-direction:column;gap:10px;display:flex}.clone-dialog__option{border:1.5px solid var(--border);background:var(--bg);cursor:pointer;border-radius:12px;align-items:flex-start;gap:14px;padding:14px 16px;transition:all .18s;display:flex}.clone-dialog__option:hover{border-color:var(--accent-border);background:var(--accent-bg);box-shadow:0 0 0 3px var(--accent-bg)}.clone-dialog__option:active{transform:scale(.98)}.clone-dialog__option-icon{flex-shrink:0;margin-top:2px;font-size:1.5rem;line-height:1}.clone-dialog__option-title{color:var(--text-h);margin-bottom:3px;font-size:.925rem;font-weight:700}.clone-dialog__option-desc{color:var(--text-muted);font-size:.82rem;line-height:1.45}.py-helper{box-sizing:border-box;z-index:50;background:var(--surface,#fff);border:1px solid var(--border,#e0e4f0);border-radius:14px;width:394px;margin:8px 0 0;padding:10px;animation:.15s cubic-bezier(.2,.8,.2,1) both py-helper-in;position:absolute;top:100%;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #0000001f}@keyframes py-helper-in{0%{opacity:0;transform:translate(-50%)translateY(-6px)scale(.97)}to{opacity:1;transform:translate(-50%)translateY(0)scale(1)}}@keyframes py-helper-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}@media (width<=768px){.py-helper{background:var(--surface,#1c1c1f);border:1px solid var(--border,#2d3142);z-index:9999;border-radius:12px;width:100vw;max-width:calc(100vw - 32px);margin:8px 0 0;padding:10px;animation:.15s cubic-bezier(.2,.8,.2,1) both py-helper-in;position:absolute;top:100%;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #00000040}}.py-helper__chars{grid-template-columns:repeat(10,1fr);justify-content:center;gap:6px;display:grid}@media (width<=768px){.py-helper__chars{gap:4px}}.py-helper__char{border:1px solid var(--border,#e0e4f0);width:100%;height:32px;color:var(--text,#2d3a4a);background:var(--surface-alt,#f4f6fb);cursor:pointer;-webkit-user-select:none;user-select:none;box-sizing:border-box;border-radius:8px;justify-content:center;align-items:center;font-size:.95rem;font-weight:500;transition:background .1s,border-color .1s,transform 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0;display:flex}.create-set-card__number{color:var(--text-muted);letter-spacing:.3px;font-size:.95rem;font-weight:700}.create-set-card__header-right{align-items:center;gap:4px;display:flex}.create-set-card__action-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:6px 8px;transition:all .18s;display:flex}.create-set-card__action-btn svg{width:16px;height:16px}.create-set-card__action-btn:hover{color:var(--text-main);background:#6464781a}.create-set-card__action-btn--delete:hover{color:#ef4444;background:#ef444414}.create-set-card__body{grid-template-columns:repeat(4,1fr);align-items:start;gap:16px;padding:20px 20px 24px;display:grid;overflow:visible}@media (width<=768px){.create-set-card__body{grid-template-columns:1fr;padding:16px 12px 20px}}.create-set-card__input-wrapper{flex-direction:column;gap:0;display:flex;position:relative}.create-set-card__input-label{color:var(--text-muted);letter-spacing:.2px;margin-bottom:6px;font-size:.72rem;font-weight:600;transition:color .2s;display:block}.create-set-card__input-wrapper:focus-within .create-set-card__input-label{color:var(--accent)}.create-set-card__input{color:var(--text-main);border:1.5px solid var(--border);background:#64648c0d;border-radius:10px;outline:none;width:100%;padding:10px 14px;font-family:inherit;font-size:1rem;font-weight:500;transition:border-color .2s,background .2s,box-shadow .2s}.create-set-card__input::placeholder{color:#aaa;font-weight:400}.create-set-card__input:focus{border-color:var(--accent);background:#4285f40a;box-shadow:0 0 0 3px #4285f41a}.create-set-card__input-wrapper--pinyin{overflow:visible}.create-set-add-row{justify-content:center;margin-top:10px;display:flex}.create-set-add-card-btn{background:var(--surface);border:2px dashed 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var(--accent,#4255ff);outline-offset:4px;border-radius:22px}.fc-card.is-flipped{transform:rotateX(180deg)}.fc-card__face{backface-visibility:hidden;background:var(--surface,#fff);border:1px solid var(--border,#e4e6f0);border-radius:20px;flex-direction:column;justify-content:center;align-items:center;padding:40px;display:flex;position:absolute;inset:0;overflow:hidden;box-shadow:0 4px 24px #00000012}.fc-card__face--back{background:var(--surface,#fff);transform:rotateX(180deg)}.fc-card__front-content{flex-direction:column;justify-content:center;align-items:center;gap:0;width:100%;display:flex}.fc-card__hanzi{color:var(--text,#1a1d2b);text-align:center;letter-spacing:.04em;font-size:clamp(2.8rem,8vw,5rem);font-weight:700;line-height:1.2}.fc-card__hanzi.fc-card__hanzi--pinyin{color:var(--text,#1a1d2b);letter-spacing:.06em;font-size:clamp(2.8rem,8vw,5rem)}.fc-card__back-content{flex-direction:column;justify-content:center;align-items:center;gap:16px;width:100%;display:flex}.fc-card__pinyin{color:var(--accent,#4255ff);text-align:center;letter-spacing:.04em;font-size:clamp(1rem,2.8vw,1.45rem);font-style:italic;font-weight:500;line-height:1.3}.fc-card__pinyin.fc-card__pinyin--hanzi{color:var(--text,#1a1d2b);letter-spacing:normal;font-size:clamp(2rem,6vw,3rem);font-style:normal}.fc-card__meaning{color:var(--text,#1a1d2b);text-align:center;font-size:clamp(1.8rem,5.5vw,2.8rem);font-weight:700;line-height:1.3}.fc-card__notes{color:var(--text-muted,#7e8299);text-align:center;white-space:pre-wrap;word-break:break-word;max-width:85%;margin-top:16px;font-size:clamp(.9rem,2.5vw,1.25rem);font-style:italic;font-weight:400;line-height:1.4}.fc-card__divider{background:var(--border,#e4e6f0);border-radius:2px;width:48px;height:2px}.fc-card__icons{align-items:center;gap:8px;display:flex;position:absolute;top:16px;right:16px}.fc-card__icon-btn{cursor:pointer;width:34px;height:34px;color:var(--text-muted,#7e8299);background:0 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#00000012}.fc-write-card__header{flex-direction:column;gap:8px;width:100%;display:flex}.fc-write-card__index{color:var(--text-muted,#7e8299);text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;font-weight:700}.fc-write-card__prompt-section{text-align:center;border-bottom:1px dashed 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#00000008}.fc-write-card__grid-lines{pointer-events:none;stroke:#ef44441f;width:100%;height:100%;position:absolute;top:0;left:0}.fc-write-card__canvas-target{z-index:2;cursor:crosshair;width:250px;height:250px}.fc-write-card__controls{grid-template-columns:repeat(2,1fr);gap:10px;width:100%;max-width:380px;display:grid}@media (width>=480px){.fc-write-card__controls{grid-template-columns:repeat(4,1fr);max-width:500px}}.fc-write-card__btn{cursor:pointer;border:1.5px solid #0000;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:6px;min-height:56px;padding:10px 8px;font-size:.78rem;font-weight:700;transition:all .15s;display:flex}.fc-write-card__btn svg{opacity:.85;width:18px;height:18px}.fc-write-card__btn--secondary{background:var(--bg,#f6f7fb);border-color:var(--border,#e4e6f0);color:var(--text-muted,#7e8299)}.fc-write-card__btn--secondary:hover,.fc-write-card__btn--active{background:var(--accent-bg,#eef0ff);border-color:var(--accent,#4255ff);color:var(--accent,#4255ff)}.fc-write-card__btn--primary{background:var(--accent,#4255ff);color:#fff;box-shadow:0 4px 12px #4255ff2e}.fc-write-card__btn--primary:hover{opacity:.95;transform:translateY(-1px);box-shadow:0 6px 16px #4255ff47}.fc-write-card__btn--primary-active{color:#fff;background:#0ca678;box-shadow:0 4px 12px #0ca6782e}.fc-write-card__btn--primary-active:hover{background:#0b9b70;transform:translateY(-1px)}.fc-write-card__success-banner{text-align:center;background:#e6fcf5;border:1.5px solid #0ca678;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:12px;width:100%;max-width:320px;padding:20px;animation:.3s cubic-bezier(.34,1.56,.64,1) 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slideDownFade;display:flex}.fc-typing-card__feedback--correct{color:#2b8a3e;background:#ebfbee;border:1px solid #c3e6cb}.fc-typing-card__feedback--incorrect{color:#c92a2a;background:#fff5f5;border:1px solid #f5c6cb}.fc-typing-card__feedback-header{align-items:center;gap:8px;font-size:.95rem;font-weight:700;display:flex}.fc-typing-card__feedback-icon{flex-shrink:0;width:18px;height:18px}.fc-typing-card__feedback-body{align-items:baseline;gap:8px;font-size:.9rem;display:flex}.fc-typing-card__feedback-answer-label{opacity:.85;font-weight:600}.fc-typing-card__feedback-answer-value{font-size:1.05rem;font-weight:700}.dark .fc-typing-setup__option-card{box-shadow:0 4px 12px #0003}.dark .fc-typing-setup__option-card:hover{box-shadow:0 8px 24px #4255ff40}.dark .fc-typing-card{box-shadow:0 4px 24px #0000004d}.dark .fc-typing-card__input{background:var(--bg,#0a092d);color:var(--text-h,#fff);border-color:var(--border,#2e3856)}.dark 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fc-pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.fc-congrats-card__badge--info{color:var(--accent,#4255ff);background:#eef0ff}.fc-match-card{background:var(--surface,#fff);border:1px solid var(--border,#e4e6f0);box-sizing:border-box;border-radius:20px;flex-direction:column;gap:24px;width:100%;min-height:380px;padding:28px;display:flex;box-shadow:0 4px 24px #00000012}@media (width>=1024px){.fc-match-card{min-height:520px;padding:40px}}.fc-match-card__header{flex-direction:column;gap:8px;width:100%;display:flex}.fc-match-card__header-row{justify-content:space-between;align-items:center;width:100%;display:flex}.fc-match-card__progress-text{color:var(--text-muted,#7e8299);letter-spacing:.05em;font-size:.9rem;font-weight:700}.fc-match-card__header-right{align-items:center;gap:12px;display:flex}.fc-match-card__page-badge{background:var(--bg-hover,#f1f3f9);color:var(--text,#1e1e2d);border:1px solid var(--border,#e4e6f0);border-radius:10px;padding:6px 12px;font-size:.85rem;font-weight:700}.fc-match-card__grid{flex-grow:1;grid-template-columns:1fr 1fr;gap:12px 20px;width:100%;display:grid}.fc-match-card__column{flex-direction:column;gap:12px;display:flex}.fc-match-card__item{background:var(--surface,#fff);border:1px solid var(--border,#e4e6f0);cursor:pointer;box-sizing:border-box;text-align:left;border-radius:16px;align-items:center;width:100%;min-height:64px;padding:16px 20px;transition:all .2s;display:flex}.fc-match-card__item:hover:not(:disabled){border-color:var(--accent,#4255ff);background:var(--bg-hover,#f8f9fd);box-shadow:0 4px 12px #4255ff0d}.fc-match-card__item-bubble{background:var(--bg);border:1px solid var(--border);width:28px;height:28px;color:var(--text-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-right:16px;font-size:.85rem;font-weight:700;transition:all .18s;display:flex}.fc-match-card__item:hover:not(:disabled) 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