:root {
      --teal:     #00b8ae;
      --teal-d:   #008f87;
      --teal-dd:  #006f69;
      --teal-l:   #00d4c8;
      --teal-xl:  #e0f9f8;
      --teal-xx:  #f0fdfc;
      --accent:   #ff6b6b;
      --gold:     #f5a623;
      --dark:     #0d2b2a;
      --text:     #2c3e3e;
      --muted:    #6b8585;
      --border:   #d0efed;
    }

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

    body {
      font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
      background: #f6fefe;
      color: var(--text);
    }

    a { text-decoration: none; color: inherit; }

    /* ── Hero ── */
    .hero {
      background: linear-gradient(135deg, var(--teal-dd) 0%, var(--teal-d) 45%, var(--teal) 100%);
      padding: 88px 40px 72px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(ellipse 60% 60% at 15% 50%, rgba(255,255,255,0.07) 0%, transparent 70%),
        radial-gradient(ellipse 40% 80% at 85% 20%, rgba(255,255,255,0.05) 0%, transparent 70%);
    }
    .hero-deco {
      position: absolute;
      font-size: 260px; opacity: 0.04;
      right: -20px; bottom: -60px; line-height: 1;
      user-select: none;
    }
    .hero-paw {
      position: absolute;
      font-size: 90px; opacity: 0.05;
      left: 48px; top: 24px;
      transform: rotate(-18deg);
      user-select: none;
    }
    .hero-chip {
      display: inline-block;
      border: 1px solid rgba(255,255,255,0.35);
      color: rgba(255,255,255,0.88);
      padding: 5px 22px; border-radius: 20px;
      font-size: 12px; letter-spacing: 4px;
      margin-bottom: 22px; position: relative;
    }
    .hero h1 {
      font-size: 50px; font-weight: 900;
      color: #fff; letter-spacing: 8px;
      text-shadow: 0 6px 24px rgba(0,0,0,0.18);
      margin-bottom: 18px; position: relative;
    }
    .hero-line {
      width: 56px; height: 3px;
      background: rgba(255,255,255,0.45);
      border-radius: 2px; margin: 0 auto 20px;
    }
    .hero p {
      font-size: 15px; color: rgba(255,255,255,0.78);
      max-width: 560px; margin: 0 auto;
      line-height: 1.9; letter-spacing: 0.5px;
      position: relative;
    }

    /* ── Stats Bar ── */
    .stats-bar {
      background: #fff;
      display: flex; justify-content: center;
      box-shadow: 0 4px 24px rgba(0,184,174,0.1);
      position: relative; z-index: 10;
    }
    .stat-item {
      flex: 1; max-width: 200px;
      padding: 26px 16px; text-align: center;
      border-right: 1px solid var(--border);
    }
    .stat-item:last-child { border-right: none; }
    .stat-num {
      font-size: 34px; font-weight: 900;
      color: var(--teal); line-height: 1;
    }
    .stat-num sup { font-size: 16px; }
    .stat-label {
      font-size: 12px; color: var(--muted);
      margin-top: 6px; letter-spacing: 1px;
    }

    /* ── Section wrapper ── */
    .section {
      max-width: 1300px;
      margin: 0 auto;
      padding: 80px 40px;
    }

    /* ── Section header ── */
    .sec-hd { text-align: center; margin-bottom: 56px; }
    .sec-en {
      font-size: 11px; font-weight: 700;
      letter-spacing: 5px; color: var(--teal);
      text-transform: uppercase; margin-bottom: 10px;
    }
    .sec-title {
      font-size: 36px; font-weight: 900;
      color: var(--dark); letter-spacing: 4px;
      margin-bottom: 14px;
    }
    .sec-desc {
      font-size: 14px; color: var(--muted);
      line-height: 1.9; max-width: 520px; margin: 0 auto;
    }
    .sec-rule {
      display: flex; align-items: center;
      justify-content: center; gap: 12px;
      margin-top: 22px;
    }
    .sec-rule::before, .sec-rule::after {
      content: ''; width: 48px; height: 2px;
      background: linear-gradient(90deg, transparent, var(--teal));
    }
    .sec-rule::after { background: linear-gradient(90deg, var(--teal), transparent); }
    .sec-dot {
      width: 8px; height: 8px;
      background: var(--teal); border-radius: 50%;
    }

    /* ── Featured (Chief Masters) - 横向大卡片，每人独占一行 ── */
    .featured-list {
      display: flex;
      flex-direction: column;
      gap: 28px;
      margin-bottom: 64px;
    }

    .featured-card {
      background: linear-gradient(135deg, var(--teal-dd) 0%, var(--teal-d) 60%, var(--teal) 100%);
      border-radius: 22px;
      overflow: hidden;
      box-shadow: 0 12px 40px rgba(0,184,174,0.22);
      transition: transform 0.35s ease, box-shadow 0.35s ease;
      cursor: pointer;
      display: grid;
      grid-template-columns: 340px 1fr;
      min-height: 340px;
    }
    .featured-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 22px 56px rgba(0,184,174,0.35);
    }
    /* 奇偶交替：偶数张图片在右 */
    .featured-card:nth-child(even) {
      grid-template-columns: 1fr 340px;
    }
    .featured-card:nth-child(even) .fc-img-wrap {
      order: 2;
    }
    .featured-card:nth-child(even) .fc-body {
      order: 1;
    }

    .fc-img-wrap {
      position: relative;
      overflow: hidden;
    }
    .fc-img-wrap img {
      width: 100%; height: 100%;
      object-fit: cover; object-position: top center;
      display: block;
      transition: transform 0.45s ease;
    }
    .featured-card:hover .fc-img-wrap img {
      transform: scale(1.05);
    }
    .fc-img-grad {
      position: absolute; inset: 0;
      background: linear-gradient(to right, transparent 60%, rgba(0,60,56,0.6) 100%);
    }
    .featured-card:nth-child(even) .fc-img-grad {
      background: linear-gradient(to left, transparent 60%, rgba(0,60,56,0.6) 100%);
    }
    .fc-chief-badge {
      position: absolute; top: 20px; left: 20px;
      background: var(--gold);
      color: #fff; font-size: 11px; font-weight: 700;
      letter-spacing: 2px; padding: 5px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 14px rgba(245,166,35,0.45);
    }
    .fc-exp-badge {
      position: absolute; top: 20px; right: 20px;
      background: rgba(255,255,255,0.18);
      backdrop-filter: blur(6px);
      border: 1px solid rgba(255,255,255,0.3);
      color: #fff; font-size: 11px; font-weight: 600;
      padding: 4px 12px; border-radius: 16px;
    }

    .fc-body {
      padding: 36px 44px;
      display: flex; flex-direction: column;
      justify-content: center;
      color: #fff;
    }
    .fc-role {
      font-size: 11px; color: rgba(255,255,255,0.55);
      letter-spacing: 4px; text-transform: uppercase;
      font-weight: 700; margin-bottom: 10px;
    }
    .fc-name {
      font-size: 42px; font-weight: 900;
      letter-spacing: 5px; line-height: 1;
      margin-bottom: 6px;
    }
    .fc-pos {
      font-size: 14px; color: rgba(255,255,255,0.58);
      margin-bottom: 22px;
    }
    .fc-certs {
      display: flex; flex-wrap: wrap; gap: 8px;
      margin-bottom: 22px;
    }
    .fc-cert {
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.2);
      color: rgba(255,255,255,0.88);
      padding: 4px 13px; border-radius: 14px;
      font-size: 12px;
    }
    .fc-bio {
      font-size: 13px; line-height: 1.95;
      color: rgba(255,255,255,0.68);
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 20px; margin-bottom: 24px;
    }
    .fc-stats {
      display: flex; gap: 36px;
    }
    .fc-stat { text-align: center; }
    .fc-stat-n {
      font-size: 28px; font-weight: 900;
      color: rgba(255,255,255,0.95);
      line-height: 1;
    }
    .fc-stat-l {
      font-size: 10px; color: rgba(255,255,255,0.42);
      letter-spacing: 1px; margin-top: 5px;
    }

    /* ── Teachers Grid (regular) ── */
    .teachers-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-bottom: 60px;
    }

    .teacher-card {
      background: #fff;
      border-radius: 18px;
      overflow: hidden;
      box-shadow: 0 2px 16px rgba(0,184,174,0.07);
      transition: transform 0.32s ease, box-shadow 0.32s ease;
      cursor: pointer;
    }
    .teacher-card:hover {
      transform: translateY(-7px);
      box-shadow: 0 16px 44px rgba(0,184,174,0.18);
    }

    .tc-img-wrap {
      position: relative;
      height: 240px; overflow: hidden;
    }
    .tc-img-wrap img {
      width: 100%; height: 100%;
      object-fit: cover; object-position: top center;
      display: block;
      transition: transform 0.4s ease;
    }
    .teacher-card:hover .tc-img-wrap img { transform: scale(1.07); }

    /* Placeholder when no real photo */
    .tc-placeholder {
      width: 100%; height: 100%;
      display: flex; align-items: center; justify-content: center;
      font-size: 56px;
    }
    .tc-placeholder.p1 { background: linear-gradient(145deg, #c8f6f4, #7de8e3); }
    .tc-placeholder.p2 { background: linear-gradient(145deg, #b8edfb, #6dcef5); }
    .tc-placeholder.p3 { background: linear-gradient(145deg, #c8f0e0, #72ddb0); }
    .tc-placeholder.p4 { background: linear-gradient(145deg, #d8e8fc, #88b8f8); }
    .tc-placeholder.p5 { background: linear-gradient(145deg, #fce8c8, #f8c888); }
    .tc-placeholder.p6 { background: linear-gradient(145deg, #ead0fc, #c888f0); }

    .tc-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(to top, rgba(0,80,76,0.65) 0%, transparent 55%);
      opacity: 0; transition: opacity 0.32s ease;
    }
    .teacher-card:hover .tc-overlay { opacity: 1; }
    .tc-hover-bio {
      position: absolute; bottom: 14px; left: 14px; right: 14px;
      color: #fff; font-size: 12px; line-height: 1.75;
      transform: translateY(8px); opacity: 0;
      transition: all 0.32s ease;
    }
    .teacher-card:hover .tc-hover-bio {
      transform: translateY(0); opacity: 1;
    }
    .tc-role-badge {
      position: absolute; top: 14px; right: 14px;
      background: var(--teal); color: #fff;
      font-size: 10px; font-weight: 700;
      padding: 3px 10px; border-radius: 12px;
      letter-spacing: 1px;
    }

    .tc-body { padding: 20px 20px 24px; }
    .tc-tag {
      display: inline-block;
      background: var(--teal-xl); color: var(--teal-d);
      padding: 3px 11px; border-radius: 10px;
      font-size: 11px; font-weight: 600;
      letter-spacing: 0.5px; margin-bottom: 10px;
    }
    .tc-name {
      font-size: 22px; font-weight: 900;
      color: var(--dark); letter-spacing: 2px;
      margin-bottom: 3px;
    }
    .tc-pos {
      font-size: 12px; color: var(--muted);
      margin-bottom: 13px;
    }
    .tc-certs {
      display: flex; flex-wrap: wrap; gap: 5px;
      margin-bottom: 14px;
    }
    .tc-cert {
      background: #f4f4f4; color: #555;
      padding: 2px 9px; border-radius: 9px; font-size: 11px;
    }
    .tc-divider {
      height: 1px; background: var(--border); margin: 13px 0;
    }
    .tc-bottom {
      display: flex; flex-direction: column; gap: 8px;
    }
    .tc-hl {
      display: flex; align-items: center; gap: 8px;
      font-size: 12px; color: var(--muted);
      line-height: 1.4;
    }
    .tc-hl-ico {
      width: 22px; height: 22px;
      background: var(--teal-xl); border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 11px; flex-shrink: 0;
    }

    /* ── Wide Row (specialty) ── */
    .wide-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 60px;
    }
    .wide-card {
      background: #fff;
      border-radius: 18px; overflow: hidden;
      display: flex;
      box-shadow: 0 2px 16px rgba(0,184,174,0.07);
      transition: transform 0.32s ease, box-shadow 0.32s ease;
      cursor: pointer;
    }
    .wide-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 14px 40px rgba(0,184,174,0.16);
    }
    .wc-img {
      width: 150px; flex-shrink: 0;
      position: relative; overflow: hidden;
    }
    .wc-img img {
      width: 100%; height: 100%;
      object-fit: cover; object-position: top center;
      display: block;
      transition: transform 0.4s ease;
    }
    .wide-card:hover .wc-img img { transform: scale(1.07); }
    .wc-placeholder {
      width: 100%; height: 100%;
      display: flex; align-items: center; justify-content: center;
      font-size: 44px;
    }
    .wc-placeholder.w1 { background: linear-gradient(135deg, #c8f6f4, #7de8e3); }
    .wc-placeholder.w2 { background: linear-gradient(135deg, #d8f0fc, #88ccf5); }
    .wc-body {
      padding: 22px 22px 22px 18px;
      flex: 1; display: flex; flex-direction: column; justify-content: center;
    }
    .wc-role {
      font-size: 10px; color: var(--teal); font-weight: 700;
      letter-spacing: 3px; text-transform: uppercase; margin-bottom: 8px;
    }
    .wc-name {
      font-size: 20px; font-weight: 900;
      color: var(--dark); letter-spacing: 2px; margin-bottom: 3px;
    }
    .wc-pos { font-size: 12px; color: var(--muted); margin-bottom: 11px; }
    .wc-bio {
      font-size: 12px; color: #666; line-height: 1.8; margin-bottom: 12px;
    }
    .wc-certs { display: flex; flex-wrap: wrap; gap: 5px; }

    /* ── Cert Banner ── */
    .cert-banner {
      background: linear-gradient(135deg, var(--teal-xx), var(--teal-xl));
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 44px 52px;
      display: flex; gap: 52px; align-items: center;
      margin-bottom: 60px;
    }
    .cb-icon { font-size: 68px; flex-shrink: 0; }
    .cb-content h3 {
      font-size: 24px; font-weight: 900;
      color: var(--teal-dd); letter-spacing: 2px; margin-bottom: 10px;
    }
    .cb-content p {
      font-size: 13px; color: #4a7070; line-height: 1.9;
      max-width: 580px;
    }
    .cb-items {
      display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px;
    }
    .cb-item {
      display: flex; align-items: center; gap: 8px;
      background: #fff; border: 1px solid var(--border);
      border-radius: 22px; padding: 7px 16px;
      font-size: 12px; color: var(--teal-d); font-weight: 600;
    }
    .cb-dot {
      width: 7px; height: 7px;
      background: var(--teal); border-radius: 50%; flex-shrink: 0;
    }

    /* ── Philosophy ── */
    .philosophy {
      background: linear-gradient(135deg, var(--teal-dd) 0%, var(--teal-d) 60%, var(--teal) 100%);
      border-radius: 22px;
      padding: 64px 60px;
      text-align: center; color: #fff;
      position: relative; overflow: hidden;
    }
    .philosophy::before {
      content: '❝';
      position: absolute; font-size: 220px; opacity: 0.05;
      top: -30px; left: 20px; line-height: 1;
    }
    .ph-label {
      font-size: 11px; color: rgba(255,255,255,0.6);
      letter-spacing: 5px; text-transform: uppercase;
      font-weight: 700; margin-bottom: 22px;
    }
    .ph-text {
      font-size: 24px; font-weight: 700; line-height: 1.75;
      color: rgba(255,255,255,0.93);
      max-width: 680px; margin: 0 auto 32px;
      letter-spacing: 1px; position: relative;
    }
    .ph-author {
      font-size: 12px; color: rgba(255,255,255,0.38);
      letter-spacing: 2px;
    }
    .ph-dots {
      display: flex; justify-content: center; gap: 7px; margin: 26px 0;
    }
    .ph-dot {
      width: 6px; height: 6px;
      background: rgba(255,255,255,0.2); border-radius: 50%;
    }
    .ph-dot.on {
      background: rgba(255,255,255,0.7); width: 18px; border-radius: 3px;
    }

    /* ── Responsive ── */
    @media (max-width: 1100px) {
      .teachers-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 900px) {
      .featured-card,
      .featured-card:nth-child(even) {
        grid-template-columns: 1fr;
        min-height: auto;
      }
      .featured-card:nth-child(even) .fc-img-wrap,
      .featured-card:nth-child(even) .fc-body { order: unset; }
      .fc-img-wrap { height: 260px; }
      .fc-body { padding: 28px 28px; }
      .fc-name { font-size: 32px; }
    }
    @media (max-width: 768px) {
      .teachers-grid { grid-template-columns: repeat(2, 1fr); }
      .wide-row { grid-template-columns: 1fr; }
      .hero h1 { font-size: 34px; }
      .stats-bar { flex-wrap: wrap; }
      .cert-banner { flex-direction: column; gap: 24px; padding: 32px; }
      .section { padding: 56px 20px; }
      .philosophy { padding: 48px 28px; }
    }