*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  :root{
    --blue-900:#0a1628;--blue-800:#0d2240;--blue-700:#0f3460;--blue-600:#165a9c;
    --blue-500:#1a73e8;--blue-400:#4a90e2;--blue-300:#7ab8f5;--blue-200:#a8d4ff;
    --blue-100:#d6eaff;--blue-50:#eef5fc;--accent:#00c9db;--gold:#f0a500;
    --green:#10b981;--red:#ef4444;--orange:#f59e0b;
    --white:#ffffff;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;
    --gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;
    --gray-700:#334155;--gray-800:#1e293b;--gray-900:#0f172a;
    --radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;
    --shadow-sm:0 1px 3px rgba(0,0,0,.08);--shadow-md:0 4px 16px rgba(0,0,0,.1);
    --shadow-lg:0 8px 32px rgba(0,0,0,.12);--shadow-xl:0 16px 48px rgba(13,34,64,.15);
    --transition:all .3s cubic-bezier(.4,0,.2,1);--max-width:1200px;
  }
  html{scroll-behavior:smooth;font-size:16px}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color:var(--gray-800);background:var(--gray-50);line-height:1.7;
    overflow-x:hidden;-webkit-font-smoothing:antialiased;
  }
  a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;height:auto}
  .container{max-width:var(--max-width);margin:0 auto;padding:0 20px}

  /* ========== Page Banner ========== */
  .page-banner{
    background:linear-gradient(160deg,var(--blue-900),var(--blue-700));
    padding:55px 20px 56px;text-align:center;position:relative;overflow:hidden;
  }
  .page-banner::before{
    content:'';position:absolute;inset:0;
    background:radial-gradient(ellipse at 30% 50%,rgba(0,201,219,.1),transparent 60%),
               radial-gradient(ellipse at 70% 30%,rgba(26,115,232,.1),transparent 60%);
  }
  .page-banner .container{position:relative;z-index:1}
  .breadcrumb{
    display:flex;align-items:center;justify-content:center;gap:8px;
    font-size:.85rem;color:rgba(255,255,255,.5);margin-bottom:16px;
  }
  .breadcrumb a{color:rgba(255,255,255,.7);transition:var(--transition)}
  .breadcrumb a:hover{color:var(--accent)}
  .page-banner h1{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;color:var(--white);margin-bottom:12px}
  .page-banner p{color:rgba(255,255,255,.6);font-size:1rem;max-width:520px;margin:0 auto}

  /* ========== Filter Bar ========== */
  .filter-bar{
    background:var(--white);border-bottom:1px solid var(--gray-200);
   top:68px;z-index:100;padding:16px 0;
  }
  .filter-inner{display:flex;flex-direction:column;gap:12px}
  .filter-header{display:flex;align-items:center;justify-content:space-between}
  .filter-count{
    display:flex;align-items:center;gap:6px;font-size:.84rem;color:var(--gray-500);white-space:nowrap;
  }
  .filter-count strong{color:var(--blue-500);font-size:1.05rem}
  .filter-reset{
    display:inline-flex;align-items:center;gap:4px;padding:6px 14px;border-radius:20px;
    font-size:.8rem;font-weight:500;cursor:pointer;transition:var(--transition);
    border:1.5px solid var(--gray-200);background:var(--white);color:var(--gray-500);
  }
  .filter-reset:hover{border-color:var(--red);color:var(--red);background:#fef2f2}
  .filter-row{display:flex;align-items:flex-start;gap:10px}
  .filter-row-label{
    flex-shrink:0;font-size:.82rem;font-weight:600;color:var(--gray-500);
    padding-top:6px;min-width:62px;
  }
  .filter-chips{display:flex;flex-wrap:wrap;gap:6px}
  .filter-chip{
    padding:5px 16px;border-radius:50px;font-size:.82rem;font-weight:500;
    cursor:pointer;transition:var(--transition);border:1.5px solid var(--gray-200);
    background:var(--white);color:var(--gray-600);white-space:nowrap;user-select:none;
    display:inline-flex;align-items:center;gap:4px;
  }
  .filter-chip:hover{border-color:var(--blue-300);color:var(--blue-500);background:var(--blue-50)}
  .filter-chip.active{
    background:var(--blue-500);color:var(--white);border-color:var(--blue-500);
    box-shadow:0 2px 8px rgba(26,115,232,.25);
  }
  .filter-chip.active .chip-count{color:rgba(255,255,255,.7)}
  .chip-count{font-size:.7rem;color:var(--gray-400)}

  /* ========== Pagination ========== */
  .pagination{
    display:flex;align-items:center;justify-content:center;gap:8px;
    padding:20px 0 10px;margin-top:10px;
  }
  .pagination button{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:50%;font-size:.85rem;font-weight:500;
    cursor:pointer;transition:var(--transition);
    border:1.5px solid var(--gray-200);background:var(--white);color:var(--gray-600);
  }
  .pagination button:hover:not(:disabled){border-color:var(--blue-300);color:var(--blue-500)}
  .pagination button.active{
    background:var(--blue-500);color:var(--white);border-color:var(--blue-500);
    box-shadow:0 2px 8px rgba(26,115,232,.2);
  }
  .pagination button:disabled{opacity:.4;cursor:not-allowed}
  .pagination .page-info{font-size:.82rem;color:var(--gray-400);margin:0 4px}

  /* ========== Office Grid ========== */
  .office-section{padding:40px 0 70px}
  .office-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

  /* ========== Office Card ========== */
  .office-card{
    background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
    box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid var(--gray-200);
    display:flex;flex-direction:column;position:relative;
  }
  .office-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
  .office-card.sold-out{opacity:.7;pointer-events:none}
  .office-card.sold-out:hover{transform:none;box-shadow:var(--shadow-sm)}
  .oc-img{
    height:200px;position:relative;overflow:hidden;
    background:linear-gradient(135deg,var(--blue-100),var(--blue-200));
    display:flex;align-items:center;justify-content:center;font-size:3.5rem;
    color:var(--blue-300);
  }
  .oc-img.ci-1{background:linear-gradient(135deg,#e3f2fd,#bbdefb)}
  .oc-img.ci-2{background:linear-gradient(135deg,#e0f7fa,#b2ebf2)}
  .oc-img.ci-3{background:linear-gradient(135deg,#e8f5e9,#c8e6c9)}
  .oc-img.ci-4{background:linear-gradient(135deg,#fff3e0,#ffe0b2)}
  .oc-img.ci-5{background:linear-gradient(135deg,#f3e5f5,#e1bee7)}
  .oc-img.ci-6{background:linear-gradient(135deg,#fce4ec,#f8bbd0)}

  .oc-badges{position:absolute;top:12px;left:12px;display:flex;flex-direction:column;gap:6px}
  .oc-badge{
    display:inline-block;padding:4px 12px;border-radius:20px;font-size:.73rem;font-weight:700;
    letter-spacing:.02em;
  }
  .oc-badge.available{background:var(--green);color:var(--white)}
  .oc-badge.promo{background:var(--red);color:var(--white);animation:badgePulse 2s infinite}
  .oc-badge.sold{background:var(--gray-500);color:var(--white)}
  @keyframes badgePulse{0%,100%{opacity:1}50%{opacity:.75}}

  .oc-body{padding:20px;flex:1;display:flex;flex-direction:column}
  .oc-location{
    display:flex;align-items:center;gap:4px;font-size:.8rem;color:var(--gray-400);margin-bottom:8px;
  }
  .oc-body h3{
    font-size:1.08rem;font-weight:700;color:var(--gray-900);margin-bottom:8px;line-height:1.4;
    transition:var(--transition);
  }
  .oc-body h3:hover{color:var(--blue-500)}
  .oc-desc{
    font-size:.85rem;color:var(--gray-500);line-height:1.6;margin-bottom:14px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    flex:1;
  }
  .oc-pricing{margin-bottom:14px}
  .oc-price-original{font-size:.82rem;color:var(--gray-400);text-decoration:line-through}
  .oc-price-current{
    font-size:1.35rem;font-weight:800;color:var(--red);
  }
  .oc-price-current.normal{color:var(--blue-600)}
  .oc-price-unit{font-size:.8rem;font-weight:400;color:var(--gray-400);margin-left:2px}
  .oc-promo-period{
    font-size:.75rem;color:var(--orange);margin-top:4px;display:flex;align-items:center;gap:4px
  }
  .oc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
  .oc-tag{
    display:flex;align-items:center;gap:3px;padding:4px 10px;
    background:var(--gray-50);border-radius:20px;font-size:.75rem;color:var(--gray-600);
  }
  .oc-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--blue-400)}
  .oc-btn{
    display:block;text-align:center;padding:10px 0;border-radius:50px;
    font-size:.88rem;font-weight:600;transition:var(--transition);margin-top:auto;
  }
  .oc-btn-available{
    background:var(--blue-500);color:var(--white);box-shadow:0 2px 10px rgba(26,115,232,.2);
  }
  .oc-btn-available:hover{background:var(--blue-600);box-shadow:0 4px 16px rgba(26,115,232,.3)}
  .oc-btn-promo{
    background:linear-gradient(135deg,var(--red),#f87171);color:var(--white);box-shadow:0 2px 10px rgba(239,68,68,.2);
  }
  .oc-btn-promo:hover{box-shadow:0 4px 16px rgba(239,68,68,.3)}
  .oc-btn-sold{
    background:var(--gray-200);color:var(--gray-500);cursor:not-allowed;
  }

  /* ========== Empty State ========== */
  .empty-state{text-align:center;padding:60px 20px}
  .empty-state .empty-icon{font-size:4rem;margin-bottom:16px}
  .empty-state p{color:var(--gray-400);font-size:1rem}

  /* ========== CTA ========== */
  .cta-section{
    background:linear-gradient(160deg,var(--blue-800),var(--blue-600));
    text-align:center;padding:70px 20px;position:relative;overflow:hidden;
  }
  .cta-section::before{
    content:'';position:absolute;inset:0;
    background:radial-gradient(ellipse at center,rgba(0,201,219,.15),transparent 70%);
  }
  .cta-section h2{font-size:1.9rem;font-weight:800;color:var(--white);position:relative;z-index:1}
  .cta-section p{color:rgba(255,255,255,.7);margin:12px auto 28px;max-width:580px;position:relative;z-index:1;font-size:.95rem}
  .btn{
    display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;
    font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);border:none;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--blue-500),var(--accent));
    color:var(--white);box-shadow:0 6px 24px rgba(26,115,232,.35);position:relative;z-index:1;
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(26,115,232,.45)}

  /* ========== Footer ========== */
  .footer{background:var(--blue-900);color:rgba(255,255,255,.6);padding:60px 0 30px}
  .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
  .footer-brand h3{font-size:1.3rem;color:var(--white);margin-bottom:12px}
  .footer-brand p{font-size:.88rem;line-height:1.8;margin-bottom:16px}
  .footer-social{display:flex;gap:12px}
  .footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;transition:var(--transition);font-size:.9rem}
  .footer-social a:hover{background:var(--blue-500);color:var(--white)}
  .footer-col h4{font-size:.95rem;color:var(--white);margin-bottom:18px;font-weight:700}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col ul li{font-size:.88rem}
  .footer-col ul li a{transition:var(--transition)}
  .footer-col ul li a:hover{color:var(--accent);padding-left:4px}
  .footer-bottom{margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:.82rem}

  @media (max-width: 1024px){
    .office-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width: 768px){
    .nav-links{
      position:fixed;top:68px;left:0;right:0;bottom:0;background:rgba(10,22,40,.97);
      flex-direction:column;align-items:stretch;padding:20px;gap:4px;
      transform:translateX(100%);transition:transform .35s ease;backdrop-filter:blur(16px);
    }
    .nav-links.open{transform:translateX(0)}
    .nav-links a{padding:14px 20px;font-size:1rem;border-radius:var(--radius-md)}
    .nav-toggle{display:flex}
    .office-grid{grid-template-columns:1fr}
    .filter-inner{gap:14px}
    .filter-row{flex-direction:column;gap:6px}
    .filter-row-label{min-width:auto;padding-top:0}
    .filter-chips{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
    .filter-chip{flex-shrink:0}
    .pagination{flex-wrap:wrap}
    .footer-grid{grid-template-columns:1fr;gap:32px}
  }