.page-header{display:flex;align-items:center;justify-content:space-between;height:60px;padding:10px 16px;background:transparent;border-bottom:none}.page-header__left{display:flex;align-items:center;flex:1;min-width:0;gap:8px}.page-header__back{display:flex;align-items:center;justify-content:center;height:40px;padding:0;border:none;border-radius:8px;cursor:pointer;color:#505e78;transition:all .2s;flex-shrink:0}.page-header__back svg{width:30px;height:30px;color:#352f44}.page-header__title-group{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0;margin-left:8px}.page-header__title-wrapper{display:inline-flex;align-items:center;position:relative}.page-header__title-measure{position:absolute;visibility:hidden;white-space:pre;font-size:16px;font-weight:500;font-family:inherit;padding:0;border:0;margin:0;height:auto;overflow:hidden;pointer-events:none}.page-header__title-input{width:200px;min-width:200px;max-width:600px;height:24px;border:1px solid transparent;border-radius:4px;background:transparent;font-size:16px;font-weight:500;color:#1f2937;outline:none;transition:all .1s}.page-header__title-input:focus:not(:disabled),.page-header__title-input:hover:not(:disabled){border-color:#3b82f6}.page-header__title-input--disabled{cursor:default}.page-header__title-input::placeholder{color:#9ca3af}.page-header__title-text{font-size:16px;font-weight:500;color:#1f2937;white-space:nowrap}.page-header__metadata{display:flex;align-items:center;gap:16px}.page-header__meta-item{display:flex;align-items:center;gap:4px;font-size:12px;color:#8999b5;line-height:1.4;white-space:nowrap}.page-header__meta-item svg{width:16px;height:16px;flex-shrink:0}.page-header__center{flex:1;display:flex;align-items:center;justify-content:center}.page-header__right{display:flex;align-items:center;gap:12px;flex-shrink:0}.page-header__btn{display:flex;align-items:center;justify-content:center;gap:6px;width:80px;height:32px;padding:0 12px;border-radius:20px;cursor:pointer;font-size:14px;font-weight:500;transition:background-color .2s ease,border-color .2s ease;border:none;white-space:nowrap;outline:none;user-select:none}.page-header__btn svg{width:16px;height:16px;flex-shrink:0}.page-header__btn--export{background:#3b82f6;color:#fff}.page-header__btn--export:hover{background:#2563eb}.page-header__btn--export:active{background:#1d4ed8}.page-header__btn--share{background:#0f67fe;color:#fff;border:none;transition:background-color .2s ease,transform .1s ease}.page-header__btn--share:hover{background-color:#458cff}.page-header__btn--share:active{background-color:#0b4bc4}.page-header__btn--share svg{color:#fff}.page-header__btn--circle{width:32px}.page-header__avatar{position:relative;display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:#8b5cf6;color:#fff;font-size:12px;font-weight:500;cursor:pointer;transition:all .2s;border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.1)}.page-header__avatar:hover{opacity:.9;transform:scale(1.05)}.page-header__share-wrapper{position:relative}