:root{--tb-blue:#39758a;--tb-dark:#132c3a;--tb-bg:#fbf8f4;--tb-card:#fff}
body{background:var(--tb-bg);font-family:Tahoma,Arial,sans-serif}
.tb-hero{background:#f7f1ea;border-radius:0 0 30px 30px;overflow:hidden}
.tb-hero h1{font-size:42px;font-weight:800;color:var(--tb-dark)}
.tb-hero h1 span{color:var(--tb-blue)}
.tb-btn{border-radius:12px;padding:12px 28px;border:1px solid var(--tb-blue);display:inline-block}
.tb-btn.primary{background:var(--tb-blue);color:#fff}
.tb-feature{padding:30px;text-align:center}
.tb-icon{width:70px;height:70px;border-radius:50%;border:2px solid var(--tb-blue);display:flex;align-items:center;justify-content:center;margin:auto;font-size:28px;color:var(--tb-blue)}
.tb-card{background:white;border-radius:16px;overflow:hidden;box-shadow:0 8px 25px #0001}
.tb-card img{width:100%;height:180px;object-fit:cover}
.tb-card h5{padding:15px;font-weight:700}
.tb-home-category-link{display:block;border-radius:22px;overflow:hidden}
.tb-home-category-card{aspect-ratio:4/3;border-radius:22px;overflow:hidden;background:#eee6dc;box-shadow:0 10px 28px rgba(19,44,58,.10);transition:transform .25s ease,box-shadow .25s ease}
.tb-home-category-card img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tb-home-category-link:hover .tb-home-category-card{transform:translateY(-5px);box-shadow:0 16px 36px rgba(19,44,58,.16)}
.tb-home-category-link:hover img{transform:scale(1.035)}
.tb-news{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 5px 20px #0001}
.tb-news img{height:140px;width:100%;object-fit:cover}
.tb-join{background:#6ea0ad;color:white;border-radius:18px;padding:30px}
@media(max-width:768px){.tb-hero h1{font-size:30px}.tb-card img{height:140px}.tb-home-category-card{aspect-ratio:1/1;border-radius:16px}}