:root{--nav-blue:#0480b1;--focus-blue:#ffffff;--glass-panel:rgba(74, 79, 84, 0.85);--glass-border:rgb(255, 255, 255);--text-dim:rgb(255, 255, 255)}*{box-sizing:border-box}body{margin:0;padding:0;font-family:'Noto Sans TC',sans-serif;background-color:#0b1726;background-image:url('/圖片/DSC_1999.avif');background-size:cover;background-position:center;background-repeat:no-repeat;background-attachment:fixed;color:#fff;overflow-x:hidden}.content-limit{max-width:680px;margin:0 auto;padding:80px 18px 60px}.page-top-nav{text-align:center;margin-bottom:25px}.page-top-nav h1{font-size:2.2rem;font-weight:900;margin-bottom:8px;text-shadow:0 4px 15px rgba(0,0,0,.886)}.text-link-btn{background:rgba(255,255,255,.08);border:1px solid var(--glass-border);color:#fff;border-radius:50px;padding:6px 16px;font-size:.75rem;cursor:pointer}.board-panel{background:var(--glass-panel);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid var(--glass-border);border-radius:28px;padding:20px;box-shadow:0 40px 80px rgba(0,0,0,.5)}.tab-switcher{display:flex;gap:8px;margin-bottom:24px;background:rgba(0,0,0,.3);border-radius:20px;padding:6px}.tab-item{flex:1;border:none;padding:12px;border-radius:14px;background:0 0;color:var(--text-dim);font-weight:700;cursor:pointer;font-size:.95rem;display:flex;align-items:center;justify-content:center;gap:10px;transition:.3s}.tab-item.active{background:#fff;color:#111;box-shadow:0 4px 15px rgba(0,0,0,.3)}.grid-inputs{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:5px}.item-group{margin-bottom:20px;display:flex;flex-direction:column}.item-group label{font-size:.85rem;font-weight:800;margin-bottom:8px;color:var(--focus-blue);opacity:.9}.item-group input,.item-group textarea{background:#fff;border:2px solid #e0e0e0;border-radius:14px;color:#333;padding:14px;font-size:1rem;outline:0;transition:.3s;caret-color:var(--nav-blue)}.item-group input:focus,.item-group textarea:focus{border-color:var(--nav-blue);box-shadow:0 0 0 4px rgba(4,128,177,.15);transform:translateY(-2px);border-color:var(--focus-blue);background:#fff}.item-group input::placeholder,.item-group textarea::placeholder{color:#aaa;transition:opacity .3s}.item-group input:focus::placeholder,.item-group textarea:focus::placeholder{opacity:.5}.bottom-info{text-align:right;margin-top:5px}.word-count{font-size:.75rem;color:var(--text-dim)}.previews-list{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:15px}.thumb-item{position:relative;aspect-ratio:1/1;border-radius:10px;overflow:hidden;background:#000;border:1px solid var(--glass-border)}.thumb-item img{width:100%;height:100%;object-fit:cover}.del-thumb{position:absolute;top:0;right:0;background:red;border:none;color:#fff;width:22px;height:22px;font-size:10px;cursor:pointer;font-weight:700}.upload-box{background:rgba(0,0,0,.25);border:2px dashed var(--glass-border);border-radius:20px;padding:25px;text-align:center;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:15px}.upload-box:hover{border-color:var(--focus-blue);background:rgba(0,0,0,.4)}.send-action{width:100%;padding:16px;border:none;border-radius:18px;background:var(--nav-blue);color:#fff;font-weight:900;font-size:1.1rem;cursor:pointer;transition:.3s;margin-top:10px;box-shadow:0 4px 20px rgba(0,105,148,.3)}.toast-card{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);background:#fff;color:#111;padding:12px 25px;border-radius:50px;font-weight:800;z-index:100000;transition:.5s cubic-bezier(.17, .88, .35, 1.2)}.toast-card.show{transform:translateX(-50%) translateY(0)}.reveal{animation:.7s backwards fadeInUp}@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:520px){.grid-inputs{grid-template-columns:1fr}}.guide-card{margin-top:25px;background:var(--glass-panel);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);border:1px solid var(--glass-border);border-radius:24px;padding:25px;box-shadow:0 20px 40px rgba(247,245,245,.3)}.guide-card h3{margin-top:0;margin-bottom:20px;font-size:1.1rem;font-weight:800;color:var(--focus-blue);display:flex;align-items:center;gap:10px}.guide-content{display:flex;flex-direction:column;gap:15px}.guide-item{display:flex;align-items:flex-start;gap:12px}.guide-item .num{width:20px;height:20px;background:var(--focus-blue);color:#0b1726;font-size:.7rem;font-weight:900;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.guide-item p{margin:0;font-size:.9rem;line-height:1.5;color:rgba(255,255,255,.85)}.guide-item b{color:var(--focus-blue)}#visitor-count{margin-top:40px;opacity:.6}