/* ===== CSS Variables & Reset ===== */
:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #141414;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --gold: #c9a96e;
  --gold-light: #d4b87a;
  --gold-dark: #a8874a;
  --text-primary: #f0ede8;
  --text-secondary: #a8a49c;
  --text-muted: #6b6760;
  --border: #2a2a2a;
  --border-light: #333333;
  --danger: #c0392b;
  --success: #27ae60;
  --font-display: 'Noto Serif SC', serif;
  --font-body: 'Noto Sans SC', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text-primary);
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
}
.logo-icon { color: var(--gold); font-size: 1.5rem; }
.nav { display: flex; gap: 32px; }
.nav-link {
  color: var(--text-secondary); text-decoration: none;
  font-size: 0.9rem; font-weight: 500;
  transition: var(--transition); position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--gold); transform: scaleX(0);
  transition: transform 0.3s;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 12px; }

.btn-contact {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 24px;
  background: var(--gold); color: #1a1a1a;
  border: none; font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
}
.btn-contact:hover { background: var(--gold-light); transform: translateY(-1px); }

.btn-admin {
  width: 36px; height: 36px; border-radius: 50%;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-muted); font-size: 1rem;
  cursor: pointer; transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.btn-admin:hover { border-color: var(--gold); color: var(--gold); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(201,169,110,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(201,169,110,0.05) 0%, transparent 50%),
    var(--bg-primary);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30Z' fill='none' stroke='%23c9a96e' stroke-width='0.3' opacity='0.15'/%3E%3C/svg%3E");
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-content { position: relative; z-index: 1; max-width: 720px; padding: 0 24px; }
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 20px;
  border: 1px solid var(--gold-dark); color: var(--gold);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.2em;
  margin-bottom: 32px; animation: fadeInUp 0.8s ease;
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900; line-height: 1.2; margin-bottom: 20px;
  animation: fadeInUp 0.8s ease 0.1s both;
}
.gold { color: var(--gold); }
.hero-subtitle {
  color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 48px;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-stats {
  display: flex; justify-content: center; gap: 64px;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--gold); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  color: var(--text-muted); font-size: 0.8rem; cursor: pointer;
  animation: bounce 2s infinite;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Sections ===== */
.offices-section, .contact-section {
  max-width: 1280px; margin: 0 auto; padding: 100px 24px;
}
.about-section {
  max-width: 1280px; margin: 0 auto; padding: 100px 24px;
  border-top: 1px solid var(--border);
}
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; padding: 4px 14px; border-radius: 12px;
  background: rgba(201,169,110,0.1); color: var(--gold);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 700;
  margin-bottom: 12px;
}
.section-desc { color: var(--text-secondary); font-size: 1rem; max-width: 480px; margin: 0 auto; }

/* ===== Office Cards ===== */
.offices-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 28px;
}
.office-card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  transition: var(--transition); cursor: pointer;
}
.office-card:hover {
  background: var(--bg-card-hover); border-color: var(--border-light);
  transform: translateY(-4px); box-shadow: var(--shadow);
}
.office-card-image {
  width: 100%; height: 260px; object-fit: cover;
  background: var(--bg-secondary);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
}
.office-card-image img { width: 100%; height: 100%; object-fit: cover; }
.office-card-body { padding: 24px; }
.office-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.office-card-name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; }
.office-card-price {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 700;
  color: var(--gold); white-space: nowrap;
}
.office-card-meta { display: flex; gap: 16px; margin-bottom: 12px; }
.office-card-meta span {
  font-size: 0.8rem; color: var(--text-muted);
  display: flex; align-items: center; gap: 4px;
}
.office-card-desc { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: 16px; }
.office-card-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 3px 10px; border-radius: 12px;
  background: rgba(201,169,110,0.08); color: var(--gold-light);
  font-size: 0.75rem;
}

/* ===== About ===== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.about-text .section-title { font-size: 1.8rem; }
.about-text p { color: var(--text-secondary); margin: 20px 0 32px; line-height: 1.8; }
.about-features { display: flex; flex-direction: column; gap: 20px; }
.feature { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon { font-size: 1.5rem; flex-shrink: 0; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: rgba(201,169,110,0.08); border-radius: var(--radius-sm); }
.feature strong { display: block; font-size: 0.95rem; margin-bottom: 2px; }
.feature p { font-size: 0.85rem; color: var(--text-muted); margin: 0 !important; }
.about-visual { display: flex; justify-content: center; }
.about-image-frame {
  width: 100%; aspect-ratio: 4/3; border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  background: var(--bg-card);
}
.about-image-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; color: var(--text-muted); font-size: 0.9rem;
}

/* ===== Contact Cards ===== */
.contact-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px; max-width: 960px; margin: 0 auto;
}
.contact-card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 28px;
  text-align: center; transition: var(--transition);
}
.contact-card:hover { border-color: var(--gold-dark); transform: translateY(-2px); }
.contact-avatar {
  width: 72px; height: 72px; border-radius: 50%;
  margin: 0 auto 16px; background: var(--bg-secondary);
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.contact-avatar img { width: 100%; height: 100%; object-fit: cover; }
.contact-avatar-placeholder {
  font-size: 1.8rem; color: var(--text-muted);
}
.contact-name { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.contact-title { color: var(--gold); font-size: 0.8rem; margin-bottom: 16px; }
.contact-info { display: flex; flex-direction: column; gap: 8px; }
.contact-info a {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; border-radius: 24px;
  text-decoration: none; font-size: 0.85rem; font-weight: 500;
  transition: var(--transition);
}
.contact-phone {
  background: var(--gold); color: #1a1a1a;
}
.contact-phone:hover { background: var(--gold-light); }
.contact-wechat {
  background: transparent; border: 1px solid var(--border); color: var(--text-secondary);
}
.contact-wechat:hover { border-color: var(--gold); color: var(--gold); }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 24px 24px;
  background: var(--bg-secondary);
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
  margin-bottom: 40px;
}
.footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 8px; }
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-links strong, .footer-contact strong { color: var(--text-primary); font-size: 0.9rem; margin-bottom: 4px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.85rem; transition: var(--transition); }
.footer-links a:hover { color: var(--gold); }
.footer-contact span { color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom {
  max-width: 1280px; margin: 0 auto; padding-top: 24px;
  border-top: 1px solid var(--border); text-align: center;
  color: var(--text-muted); font-size: 0.8rem;
}

/* ===== Modals ===== */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
  align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  width: 90%; max-width: 560px; max-height: 85vh;
  overflow-y: auto; position: relative;
  animation: modalIn 0.3s ease;
}
.admin-modal { max-width: 760px; }
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px; border-radius: 50%;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 1.2rem;
  cursor: pointer; transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { border-color: var(--danger); color: var(--danger); }
.modal-title { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 24px; }
.modal-form { display: flex; flex-direction: column; gap: 16px; }
.modal-form label { font-size: 0.85rem; color: var(--text-secondary); font-weight: 500; }
.modal-form input, .modal-form textarea {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--bg-secondary); border: 1px solid var(--border);
  color: var(--text-primary); font-size: 0.9rem; font-family: var(--font-body);
  transition: var(--transition); outline: none;
}
.modal-form input:focus, .modal-form textarea:focus { border-color: var(--gold); }
.modal-form textarea { resize: vertical; min-height: 80px; }
.modal-hint { text-align: center; font-size: 0.8rem; color: var(--danger); margin-top: 12px; min-height: 20px; }

.btn-primary {
  padding: 12px 24px; border-radius: 24px;
  background: var(--gold); color: #1a1a1a;
  border: none; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
}
.btn-primary:hover { background: var(--gold-light); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-danger {
  padding: 6px 14px; border-radius: 20px;
  background: transparent; border: 1px solid var(--danger);
  color: var(--danger); font-size: 0.8rem; font-weight: 500;
  cursor: pointer; transition: var(--transition);
}
.btn-danger:hover { background: var(--danger); color: white; }
.btn-outline {
  padding: 6px 14px; border-radius: 20px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 0.8rem; font-weight: 500;
  cursor: pointer; transition: var(--transition);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

/* ===== Admin Panel ===== */
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.admin-header .modal-title { margin-bottom: 0; }
.admin-header .modal-close { position: static; }
.admin-tabs { display: flex; gap: 4px; margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 0; }
.admin-tab {
  padding: 10px 20px; border: none; background: transparent;
  color: var(--text-muted); font-size: 0.85rem; font-weight: 500;
  cursor: pointer; transition: var(--transition);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.admin-tab:hover { color: var(--text-primary); }
.admin-tab.active { color: var(--gold); border-bottom-color: var(--gold); }
.admin-content { }
.admin-content.hidden { display: none; }
.admin-actions { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.admin-limit { font-size: 0.8rem; color: var(--text-muted); }
.admin-list { display: flex; flex-direction: column; gap: 10px; }
.admin-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-radius: var(--radius-sm);
  background: var(--bg-secondary); border: 1px solid var(--border);
  transition: var(--transition);
}
.admin-item:hover { border-color: var(--border-light); }
.admin-item-info { display: flex; align-items: center; gap: 14px; flex: 1; }
.admin-item-thumb {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: var(--bg-primary); overflow: hidden; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.admin-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.admin-item-name { font-weight: 600; font-size: 0.9rem; }
.admin-item-detail { font-size: 0.78rem; color: var(--text-muted); }
.admin-item-actions { display: flex; gap: 8px; }

/* ===== Photo Upload ===== */
.photo-upload { position: relative; }
.photo-upload input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; z-index: 1;
}
.photo-preview {
  width: 100%; height: 180px; border-radius: var(--radius-sm);
  border: 2px dashed var(--border); background: var(--bg-secondary);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.85rem;
  transition: var(--transition); overflow: hidden;
}
.photo-preview:hover { border-color: var(--gold); }
.photo-preview img { width: 100%; height: 100%; object-fit: cover; }
.avatar-preview { width: 120px; height: 120px; border-radius: 50%; margin: 0 auto; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav { display: none; }
  .hero-stats { gap: 32px; }
  .offices-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .section-title { font-size: 1.6rem; }
  .admin-tabs { overflow-x: auto; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }