.about-us,.cooperation-parts{display:flex}.about-us{margin:auto;color:var(--primary-color)}.au-inner{display:flex;flex-direction:column;overflow:hidden}.au-top{display:flex;width:100%;justify-content:center}h2.au-nav{margin:5rem 2.5rem 2.5em;padding:.5rem 1rem;cursor:pointer;box-sizing:border-box;transition:.3s}.au-bot{width:200%;display:flex;flex-direction:column;margin-bottom:5rem}.au-content{height:0;overflow:hidden;margin:auto 0;max-width:50%}.au-inner p{line-height:2;text-align:justify}.cooperation-part:first-child{padding-right:2rem}.cooperation-part{width:50%}.au-bot h3{margin:2rem auto 1.5rem}.au-nav.selected,.au-nav:hover{background:var(--primary-color);color:#fff;border-radius:4px}.au-content.selected{height:100%}.founder-description{line-height:2}.founder-contact{display:flex;align-items:center;justify-content:center;margin-right:1rem}.au-content.founder,.founder-contacts{display:flex}.founder-img{min-width:400px;min-height:500px;background-position:top center;background-size:contain;background-repeat:no-repeat}.cooperation-img{text-align:center;margin:2rem auto}.cooperation-img img{max-width:100%;height:auto;border-radius:4px;box-shadow:0 4px 12px rgba(0,0,0,.15)}.founder-contents{padding-left:2rem;box-sizing:border-box}.founder-contact span{margin-right:1rem;color:var(--secondary-color)}.about-us .social-media span{font-size:1.5rem;margin-right:.5rem;color:var(--secondary-color)}.ht-inner{border-bottom:solid 5px var(--secondary-color)}@media (max-width:900px){.cooperation-part{padding:0;width:100%}.au-content.founder.widther.selected,.cooperation-parts{flex-direction:column}.founder-img{min-width:300px;min-height:300px;margin-bottom:2rem}}@media (max-width:650px){.au-content{flex-direction:column}.founder-contents{padding:0}h2.au-nav{margin:5rem auto 2.5rem}.founder-img{width:300px;height:300px;margin:auto auto 1rem}}@media (max-width:450px){.header-nav span{color:#171f34}.founder-contacts{margin:auto;display:table}.founder-contents .social-medias{margin:1rem auto}.au-bot h3{text-align:center}.founder-contact{width:180px!important}}