/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{width:100%;min-height:100vh;font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;font-size:14px;color:#e8e8e8;background:#0a0a0a;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;cursor:pointer;transition:color .3s ease}
a:hover{color:#18ff92}
ul,ol{list-style:none}
button{border:none;outline:none;cursor:pointer;font-family:inherit;background:none;color:inherit}

/* ===== Layout ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,10,10,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 16px;max-width:1200px;margin:0 auto}
.logo{font-size:18px;font-weight:700;color:#fff;letter-spacing:1px;white-space:nowrap}
.logo span{color:#18ff92}
.header-nav{display:flex;gap:24px;align-items:center}
.header-nav a{font-size:14px;color:#bbb;position:relative;padding:4px 0}
.header-nav a:hover,.header-nav a.active{color:#18ff92}
.header-nav a.active::after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:#18ff92;border-radius:1px}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:1px;transition:.3s}

/* ===== Hero / Page Title ===== */
.hero{text-align:center;padding:48px 16px 32px;background:linear-gradient(180deg,rgba(24,255,146,.06) 0%,transparent 100%)}
.hero h1{font-size:28px;font-weight:300;color:#fff;letter-spacing:3px;margin-bottom:8px}
.hero p{font-size:14px;color:#888;letter-spacing:1px}
.breadcrumb{font-size:12px;color:#666;margin-top:12px;background:none;padding:0;margin-bottom:0;border-radius:0;display:block}
.breadcrumb a{color:#18ff92}
.breadcrumb span{margin:0 6px;color:#444}
.breadcrumb::before{display:none}

/* ===== Category Grid (Homepage) ===== */
.category-section{padding:32px 0 60px}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.category-card{position:relative;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:#1a1a1a;cursor:pointer;transition:transform .4s ease,box-shadow .4s ease}
.category-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(24,255,146,.15)}
.category-card .card-bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .6s ease;filter:brightness(.7)}
.category-card:hover .card-bg{transform:scale(1.08);filter:brightness(.85)}
.category-card .card-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.85) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:16px}
.category-card .card-title{font-size:18px;font-weight:600;color:#fff;margin-bottom:4px}
.category-card .card-count{font-size:12px;color:#18ff92}
.category-card .card-arrow{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;opacity:0;transition:opacity .3s ease}
.category-card:hover .card-arrow{opacity:1}

/* ===== Sub-category Tabs ===== */
.tabs-wrap{padding:0 16px;max-width:1200px;margin:0 auto}
.tabs-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.tabs-scroll::-webkit-scrollbar{display:none}
.tabs-nav{display:flex;gap:8px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.06);white-space:nowrap}
.tab-btn{padding:8px 20px;border-radius:20px;font-size:13px;color:#999;background:rgba(255,255,255,.04);border:1px solid transparent;transition:all .3s ease;white-space:nowrap;flex-shrink:0}
.tab-btn:hover{color:#fff;background:rgba(255,255,255,.08)}
.tab-btn.active{color:#0a0a0a;background:#18ff92;font-weight:600}

/* ===== Image Gallery (Masonry) ===== */
.gallery-section{padding:24px 0 80px}
.gallery{column-count:3;column-gap:12px}
.gallery-item{break-inside:avoid;margin-bottom:12px;border-radius:8px;overflow:hidden;background:#1a1a1a;cursor:pointer;position:relative;transition:transform .3s ease}
.gallery-item:hover{transform:scale(1.02)}
.gallery-item img{width:100%;height:auto;display:block;transition:filter .3s ease}
.gallery-item:hover img{filter:brightness(1.1)}
.gallery-item .item-overlay{position:absolute;inset:0;background:rgba(0,0,0,0);display:flex;align-items:center;justify-content:center;transition:background .3s ease}
.gallery-item:hover .item-overlay{background:rgba(0,0,0,.3)}
.gallery-item .item-zoom{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(.8);transition:all .3s ease;color:#333;font-size:18px}
.gallery-item:hover .item-zoom{opacity:1;transform:scale(1)}

/* ===== Aspect ratio helpers ===== */
.ratio-16-9{aspect-ratio:16/9;object-fit:cover}
.ratio-9-16{aspect-ratio:9/16;object-fit:cover}
.ratio-1-1{aspect-ratio:1/1;object-fit:cover}

/* ===== Floating Action Buttons ===== */
.fab-group{position:fixed;right:16px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:12px}
.fab-btn{width:48px;height:48px;border-radius:50%;background:#18ff92;color:#0a0a0a;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 4px 16px rgba(24,255,146,.3);transition:transform .3s ease,box-shadow .3s ease;position:relative}
.fab-btn:hover{transform:scale(1.1);box-shadow:0 6px 24px rgba(24,255,146,.45)}
.fab-btn:active{transform:scale(.95)}
.fab-btn .fab-tip{position:absolute;right:56px;top:50%;transform:translateY(-50%);background:#333;color:#fff;font-size:12px;padding:4px 10px;border-radius:4px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .3s ease}
.fab-btn:hover .fab-tip{opacity:1}

/* ===== Toast ===== */
.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.9);background:rgba(0,0,0,.85);color:#fff;padding:12px 28px;border-radius:8px;font-size:14px;z-index:200;opacity:0;pointer-events:none;transition:all .3s ease}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}

/* ===== Modal (QR Code / Lightbox) ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:150;display:flex!important;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s ease;padding:16px}
.modal-overlay.show{opacity:1;pointer-events:auto}
.modal-box{background:#1a1a1a;border-radius:12px;padding:24px;max-width:360px;width:100%;text-align:center;position:relative;transform:scale(.9);transition:transform .3s ease}
.modal-overlay.show .modal-box{transform:scale(1)}
.modal-box h3{font-size:16px;color:#fff;margin-bottom:16px;font-weight:400}
.modal-box img{width:100%;max-width:280px;margin:0 auto;border-radius:8px}
.modal-box .modal-close{position:absolute;top:10px;right:14px;font-size:24px;color:#888;cursor:pointer;line-height:1}
.modal-box .modal-close:hover{color:#fff}
.modal-box p{font-size:12px;color:#888;margin-top:12px}

/* ===== Lightbox ===== */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.95);z-index:180;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s ease}
.lightbox.show{opacity:1;pointer-events:auto}
.lightbox img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:4px}
.lightbox-close{position:absolute;top:20px;right:24px;font-size:32px;color:#fff;cursor:pointer;z-index:181;line-height:1;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.1)}
.lightbox-close:hover{background:rgba(255,255,255,.2)}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:181;transition:background .3s ease}
.lightbox-nav:hover{background:rgba(255,255,255,.25)}
.lightbox-prev{left:20px}
.lightbox-next{right:20px}
.lightbox-counter{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:#aaa;font-size:13px;z-index:181}

/* ===== Load More Button ===== */
.load-more-wrap{text-align:center;padding:24px 0 8px}
.load-more-btn{padding:10px 32px;border-radius:24px;font-size:14px;color:#18ff92;background:transparent;border:1px solid #18ff92;cursor:pointer;transition:all .3s ease;letter-spacing:1px}
.load-more-btn:hover{background:#18ff92;color:#0a0a0a}
.load-more-btn:active{transform:scale(.96)}
.load-more-btn:disabled{opacity:.4;cursor:default;border-color:#555;color:#555}
.load-more-btn:disabled:hover{background:transparent;color:#555}
.gallery-data{display:none}

/* ===== Footer ===== */
.site-footer{text-align:center;padding:24px 16px;border-top:1px solid rgba(255,255,255,.06);color:#555;font-size:12px}
.site-footer a{color:#18ff92}

/* ===== Empty state ===== */
.empty-state{text-align:center;padding:60px 16px;color:#666}
.empty-state .empty-icon{font-size:48px;margin-bottom:16px;opacity:.3}
.empty-state p{font-size:14px}

/* ===== Responsive ===== */
@media(max-width:992px){
  .category-grid{grid-template-columns:repeat(3,1fr)}
  .gallery{column-count:3}
}
@media(max-width:768px){
  .header-nav{display:none;position:absolute;top:60px;left:0;right:0;background:rgba(10,10,10,.98);flex-direction:column;padding:16px;gap:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .header-nav.open{display:flex}
  .header-nav a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.04);width:100%}
  .header-nav a.active::after{display:none}
  .menu-toggle{display:flex}
  .hero h1{font-size:22px;letter-spacing:2px}
  .hero{padding:32px 16px 20px}
  .category-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .category-card .card-title{font-size:15px}
  .gallery{column-count:2;column-gap:8px}
  .gallery-item{margin-bottom:8px}
  .fab-group{right:12px;bottom:16px;gap:10px}
  .fab-btn{width:42px;height:42px;font-size:18px}
  .lightbox-nav{width:36px;height:36px;font-size:18px}
  .lightbox-prev{left:8px}
  .lightbox-next{right:8px}
}
@media(max-width:480px){
  .category-grid{grid-template-columns:1fr 1fr}
  .gallery{column-count:2}
  .hero h1{font-size:18px}
}


/* ===== 预约表单弹窗 ===== */
.book-box{text-align:left;width:400px!important;max-width:90vw!important;flex-shrink:0!important}
.book-box h3{text-align:center}
.book-box .book-sub{text-align:center;margin:0 0 16px;color:#888;font-size:12px}
.book-box form{display:flex;flex-direction:column;gap:14px}
.book-box label{display:grid;grid-template-columns:80px 1fr;align-items:center;gap:10px;font-size:14px;color:#ccc}
.book-box label span{text-align:right;color:#999;font-size:13px}
.book-box input{background:#2a2a2a;border:1px solid #333;border-radius:8px;padding:10px 12px;color:#fff;font-size:14px;outline:none;box-sizing:border-box;width:100%}
.book-box input:focus{border-color:#18ff92}
.book-submit{margin-top:8px;background:#18ff92;color:#000;border:none;border-radius:8px;padding:12px;font-size:15px;font-weight:600;cursor:pointer;width:100%}
.book-submit:disabled{opacity:.6;cursor:not-allowed}

/* ===== 在线客服 ===== */
.chat-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:9998;align-items:center;justify-content:center;}
.chat-overlay.show{display:flex;}
.chat-box{width:92%;max-width:380px;height:70vh;max-height:640px;background:#fff;border-radius:14px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.2);}
.chat-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#3b7ddd;color:#fff;font-weight:600;}
.chat-head .modal-close{cursor:pointer;font-size:22px;line-height:1;}
.chat-msgs{flex:1;overflow-y:auto;padding:14px;background:#f5f6f8;}
.chat-msg{margin-bottom:12px;display:flex;}
.chat-msg.me{justify-content:flex-end;}
.chat-msg .bubble{max-width:80%;padding:9px 12px;border-radius:12px;font-size:14px;line-height:1.5;word-break:break-word;}
.chat-msg.me .bubble{background:#3b7ddd;color:#fff;border-bottom-right-radius:3px;}
.chat-msg.ai .bubble,.chat-msg.staff .bubble{background:#fff;color:#333;border:1px solid #e6e8ec;border-bottom-left-radius:3px;}
.chat-input{display:flex;padding:10px;border-top:1px solid #eee;gap:8px;}
.chat-input input{flex:1;padding:9px 12px;border:1px solid #ddd;border-radius:20px;outline:none;font-size:14px;color:#222;background:#fff}
.chat-input button{padding:9px 18px;border:none;border-radius:20px;background:#3b7ddd;color:#fff;font-size:14px;cursor:pointer;}
.chat-input button:disabled{opacity:.6;}
@media(max-width:768px){.chat-box{width:100%;height:100vh;max-height:none;border-radius:0;}}