.announcement-section{padding:60px 16px;background:linear-gradient(to bottom,#f9fafb,#fff,#f9fafb);display:flex;justify-content:center}.announcement-section .container{width:100%;max-width:900px;margin:auto;position:relative}.announcement-header{text-align:center;margin-bottom:32px}.announcement-header h2{font-size:34px;font-weight:800;display:flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(90deg,#2563eb,#4f46e5);-webkit-background-clip:text;color:transparent}.announcement-header p{color:#6b7280;font-size:15px;margin-top:6px}.announcement-action{display:flex;justify-content:center;margin-bottom:24px}.btn-primary{display:inline-flex;align-items:center;gap:6px;background:#2563eb;color:#fff;border:none;padding:8px 14px;font-size:14px;font-weight:600;border-radius:10px;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.12);transition:all .25s}.btn-primary:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 8px 20px rgba(0,0,0,.15)}.message-form{display:flex;justify-content:center;margin-bottom:28px}.hidden{display:none}.card{width:100%;max-width:520px;background:#fff;padding:22px;border-radius:18px;border:1px solid #e0e7ff;box-shadow:0 10px 30px rgba(0,0,0,.08)}.card h3{font-size:17px;font-weight:700;color:#2563eb;margin-bottom:14px}.card input,.card textarea{width:100%;border:1px solid #e5e7eb;border-radius:10px;padding:10px 12px;font-size:14px;margin-bottom:12px;outline:none;transition:all .2s}.card input:focus,.card textarea:focus{border-color:#2563eb;box-shadow:0 0 0 2px rgba(37,99,235,.15)}.card button{display:flex;align-items:center;justify-content:center;gap:6px;background:#2563eb;color:#fff;border:none;padding:10px;border-radius:10px;font-weight:600;cursor:pointer;transition:.2s}.card button:hover{background:#1d4ed8}.carousel{position:relative;height:150px;display:flex;align-items:center;justify-content:center;max-width:760px;margin:auto}.carousel-item{position:absolute;width:100%;max-width:600px;left:50%;transform:translateX(-50%) translateX(40px) scale(.96);opacity:0;transition:all .55s cubic-bezier(.4,.2,.2,1);padding:0 10px}.carousel-item.active{opacity:1;transform:translateX(-50%) translateX(0) scale(1)}.message-card{margin:0 auto;background:linear-gradient(135deg,#fff,#eff6ff);border:1px solid #dbeafe;border-radius:18px;padding:26px;text-align:center;box-shadow:0 10px 25px rgba(0,0,0,.1)}.message-text{font-size:18px;color:#374151;font-style:italic;line-height:1.5;margin-bottom:10px}.message-author{font-size:14px;font-weight:600;color:#2563eb}.nav{position:absolute;top:50%;transform:translateY(-50%);background:#fff;border:none;width:34px;height:34px;border-radius:50%;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.15);font-size:18px;display:flex;align-items:center;justify-content:center;transition:.2s;z-index:10}.nav:hover{background:#f3f4f6;transform:translateY(-50%) scale(1.05)}.prev{left:-36px}.next{right:-36px}.empty{text-align:center;color:#6b7280;font-size:15px}@media (max-width:768px){.announcement-header h2{font-size:28px}.carousel{height:160px}.message-card{padding:20px}.message-text{font-size:16px}.prev{left:-24px}.next{right:-24px}}