* { box-sizing: border-box; }
    body {
      margin: 0;
      color: #102039;
      background: #f5f7fa;
      font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      font-size: 12px;
    }
    a { color: inherit; text-decoration: none; }
    ::-webkit-scrollbar {
      width: 0;
      background: transparent;
    }
    .apple-nav {
      position: sticky;
      top: 0;
      z-index: 50;
      height: 57px;
      border-bottom: 1px solid #dbeafe;
      background: rgba(240, 247, 255, .8);
      backdrop-filter: saturate(180%) blur(20px);
      transition: background .5s cubic-bezier(.28,.11,.32,1);
    }
    .apple-nav-inner {
      width: min(100%, 1200px);
      height: 56px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 36px;
      color: rgba(0,29,61,.9);
      font-size: 13px;
      font-weight: 500;
      letter-spacing: -.01em;
    }
    .apple-logo {
      height: 36px;
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      color: #0066cc;
      transition: opacity .2s ease, transform .2s ease;
    }
    .apple-logo img {
      height: 36px;
      width: auto;
      display: block;
    }
    .apple-logo:hover { opacity: 1; }
    .apple-logo:active { transform: scale(.95); }
    .apple-links {
      height: 100%;
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 40px;
    }
    .nav-group {
      height: 100%;
      display: flex;
      align-items: center;
    }
    .apple-nav-link {
      position: relative;
      height: 100%;
      display: flex;
      align-items: center;
      padding: 0 8px;
      color: rgba(0,29,61,.9);
      transition: color .2s ease, opacity .2s ease;
    }
    .apple-nav:hover .apple-nav-link:not(:hover) { opacity: .6; }
    .apple-nav-link:hover { color: #0066cc; opacity: 1; }
    .dropdown-panel {
      position: absolute;
      top: 56px;
      left: 0;
      width: 100%;
      visibility: hidden;
      opacity: 0;
      padding: 40px 0 64px;
      background: rgba(255, 255, 255, .98);
      backdrop-filter: saturate(180%) blur(20px);
      border-bottom: 1px solid rgba(0, 0, 0, .1);
      transform: translateY(-10px);
      transition: all .4s cubic-bezier(.4, 0, .2, 1);
      z-index: 40;
      pointer-events: none;
    }
    .nav-group.dropdown-open .dropdown-panel {
      visibility: visible;
      opacity: 1;
      transform: translateY(0);
      pointer-events: auto;
    }
    .dropdown-content {
      width: min(100%, 1200px);
      margin: 0 auto;
      padding: 0 48px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 48px;
      text-align: left;
    }
    .menu-eyebrow {
      margin: 0 0 16px;
      color: #94a3b8;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
    }
    .menu-list,
    .menu-list-large {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 12px;
    }
    .menu-list-large {
      color: #1e293b;
      font-size: 17px;
      font-weight: 700;
    }
    .menu-list {
      color: #475569;
      font-size: 12px;
      font-weight: 500;
    }
    .menu-list span,
    .menu-list-large span {
      transition: color .2s ease;
    }
    .menu-list span:hover,
    .menu-list-large span:hover {
      color: #0066cc;
    }
    .menu-wide { grid-column: span 2; }
    .menu-card {
      padding: 16px;
      border: 1px solid #dbeafe;
      border-radius: 16px;
      background: rgba(239, 246, 255, .5);
    }
    .menu-card-title {
      margin: 0 0 4px;
      color: #1e40af;
      font-size: 13px;
      font-weight: 700;
    }
    .menu-card-text {
      margin: 0;
      color: #64748b;
      font-size: 11px;
      line-height: 1.6;
    }
    .apple-nav-link.active {
      color: #0066cc;
      font-weight: 700;
    }
    .apple-nav-link.active::after {
      position: absolute;
      left: 8px;
      right: 8px;
      bottom: 0;
      height: 2px;
      content: "";
      background: #0066cc;
    }
    .apple-action {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      width: 24px;
      color: #0066cc;
    }
    .apple-action svg {
      width: 16px;
      height: 16px;
      transition: transform .2s ease;
    }
    .apple-action:hover svg { transform: scale(1.1); }
    .mobile-site-nav { display: none; }
    .seo-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }
    .main {
      width: 100%;
      margin: 0;
    }
    .search-main {
      position: relative;
      margin-bottom: -18px;
      min-height: 285px;
      padding: 44px 0 76px;
      overflow: hidden;
      border: 0;
      border-radius: 0;
      color: #eaf4ff;
      background:
        radial-gradient(circle at 8% -8%, rgba(0,68,136,.32), transparent 34%),
        radial-gradient(circle at 92% 68%, rgba(0,102,204,.22), transparent 32%),
        linear-gradient(to bottom, #00152b 0%, #001d3d 62%, rgba(245,247,250,0) 100%);
      box-shadow: none;
    }
    .search-main::before {
      position: absolute;
      top: -220px;
      left: -110px;
      width: 600px;
      height: 600px;
      content: "";
      border-radius: 999px;
      background: rgba(0,68,136,.3);
      filter: blur(180px);
      pointer-events: none;
    }
    .search-main::after {
      position: absolute;
      right: -120px;
      bottom: 20px;
      width: 420px;
      height: 420px;
      content: "";
      border-radius: 999px;
      background: rgba(0,102,204,.2);
      filter: blur(150px);
      pointer-events: none;
    }
    .search-main > * {
      position: relative;
      z-index: 1;
    }
    .search-main > .search-row {
      width: calc(100% - 56px);
      max-width: 1440px;
      margin-left: auto;
      margin-right: auto;
    }
    .filter-hero-row {
      align-items: center;
      flex-wrap: nowrap;
      gap: 14px;
      padding: 0;
      min-height: 64px;
    }
    .search-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }
    .search-row:last-child { border-bottom: 0; }
    .filter-col {
      width: 270px;
      flex: 0 0 270px;
      display: grid;
      grid-template-columns: repeat(3, max-content);
      grid-auto-rows: 18px;
      gap: 4px 10px;
      align-items: center;
      margin-right: 0;
    }
    label { cursor: pointer; }
    input[type="checkbox"] { accent-color: #ffbe18; }
    .filter-col label {
      display: flex;
      align-items: center;
      gap: 4px;
      color: rgba(239,246,255,.88);
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
    }
    .filter-col label:hover { color: #fff; }
    .search-label {
      color: rgba(239,246,255,.88);
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }
    .search-label-strong {
      color: rgba(239,246,255,.78);
      font-size: 27px;
      line-height: 1;
      font-weight: 800;
      letter-spacing: -.06em;
    }
    .small-input {
      width: 72px;
      height: 38px;
      padding: 0 6px;
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 0;
      text-align: center;
      color: #102039;
      background: rgba(255,255,255,.94);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.5);
    }
    .keyword-wrap {
      flex: 1 1 auto;
      min-width: 320px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .search-box {
      flex: 1;
      min-width: 0;
      display: flex;
      align-items: center;
    }
    .search-box input {
      width: 100%;
      height: 48px;
      padding: 0 14px;
      border: 1px solid rgba(255,255,255,.2);
      border-right: 0;
      border-radius: 0;
      outline: 0;
      background: rgba(255,255,255,.92);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.55);
    }
    .search-btn {
      position: relative;
      width: 60px;
      height: 48px;
      display: grid;
      place-items: center;
      border: 0;
      border-radius: 0;
      color: #0066cc;
      background: rgba(255,255,255,.94);
      cursor: pointer;
    }
    .search-btn::before {
      width: 24px;
      height: 24px;
      content: "";
      border: 4px solid currentColor;
      border-radius: 999px;
    }
    .search-btn::after {
      position: absolute;
      width: 14px;
      height: 4px;
      content: "";
      background: currentColor;
      transform: translate(14px, 14px) rotate(45deg);
      transform-origin: center;
      border-radius: 999px;
    }
    .tool-row {
      justify-content: space-between;
    }
    .export-panel {
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 7px;
      flex: 0 0 224px;
      min-width: 224px;
      padding-left: 18px;
      border-left: 1px solid rgba(255,255,255,.14);
      color: rgba(239,246,255,.88);
      font-size: 11px;
    }
    .range-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 0 0 auto;
      white-space: nowrap;
    }
    .markup-box {
      display: flex;
      align-items: center;
      gap: 5px;
      white-space: nowrap;
      padding: 0;
      border: 0;
      border-radius: 0;
      color: #eff6ff;
      background: transparent;
      backdrop-filter: blur(12px);
    }
    .markup-box label {
      display: inline-flex;
      align-items: center;
      gap: 3px;
      color: #eff6ff;
      white-space: nowrap;
    }
    .markup-box input[type="number"] {
      width: 62px;
      height: 20px;
      border: 0;
      border-bottom: 1px solid rgba(255,255,255,.28);
      color: #eff6ff;
      text-align: right;
      font-weight: 800;
      outline: 0;
      background: transparent;
    }
    .btn-export {
      height: auto;
      padding: 0;
      border: 0;
      border-radius: 0;
      color: rgba(239,246,255,.88);
      background: transparent;
      cursor: pointer;
      font-size: 11px;
    }
    .btn-export:hover { color: #fff; background: transparent; }
    .export-actions {
      display: flex;
      gap: 14px;
      white-space: nowrap;
    }
    .tip {
      display: flex;
      align-items: center;
      gap: 0;
      color: rgba(219,234,254,.76);
      font-size: 10px;
      line-height: 1.1;
    }
    .tip::before { content: none; }
    @media (min-width: 901px) and (max-width: 1300px) {
      .search-main {
        min-height: 330px;
      }
      .filter-hero-row {
        flex-wrap: wrap;
        padding-top: 8px;
      }
      .filter-col {
        width: 250px;
        flex-basis: 250px;
      }
      .keyword-wrap {
        min-width: 300px;
      }
      .export-panel {
        flex: 1 1 100%;
        min-width: 0;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 18px;
        padding: 10px 0 0;
        border-top: 1px solid rgba(255,255,255,.1);
        border-left: 0;
      }
    }
    .table-wrap {
      width: calc(100% - 56px);
      max-width: 1540px;
      position: relative;
      z-index: 2;
      margin: -64px auto 0;
      min-height: 500px;
      overflow: hidden;
      border-top: 0;
      border-right: 0;
      border-bottom: 0;
      border-left: 0;
      border-radius: 0;
      background: #fff;
      box-shadow: 0 18px 48px -34px rgba(15,23,42,.2);
    }
    .table-head,
    .patent-row {
      display: grid;
      grid-template-columns: 46px 92px 150px minmax(380px, 2.7fr) 96px 112px 104px 100px 106px;
      align-items: center;
    }
    .table-head {
      height: 42px;
      color: #0f3769;
      background: #eef6ff;
      font-size: 13px;
      font-weight: 800;
      text-align: center;
      border-bottom: 1px solid #bfdbfe;
      box-shadow: none;
    }
    .patent-row {
      min-height: 48px;
      border-top: 1px solid #dce3eb;
      color: #34435a;
      background: #fff;
      font-size: 14px;
      line-height: 1.45;
      text-align: center;
    }
    .patent-row:hover { background: #f3f6f9; }
    .fee-date {
      color: #8794a8;
      font-size: 13px;
      font-weight: 400;
    }
    .table-head .fee-date {
      color: #5f7185;
      font-weight: 600;
    }
    .patent-row .name {
      min-width: 0;
      overflow: hidden;
      padding-right: 10px;
      color: #102039;
      text-align: left;
      font-weight: 600;
    }
    .patent-name-trigger {
      width: 100%;
      display: block;
      overflow: hidden;
      padding: 0;
      border: 0;
      color: inherit;
      background: transparent;
      font: inherit;
      font-weight: inherit;
      line-height: inherit;
      text-align: left;
      text-overflow: ellipsis;
      white-space: nowrap;
      cursor: pointer;
      transition: color .18s ease;
    }
    .patent-name-trigger:hover {
      color: #1559d6;
      text-decoration: underline;
      text-underline-offset: 3px;
    }
    .green { color: #16a34a; }
    .orange { color: #ea580c; }
    .blue { color: #1559d6; }
    .price {
      color: #dc9700;
      font-weight: 800;
    }
    .reserve {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 24px;
      padding: 0 9px;
      border: 1px solid #e5d8a8;
      border-radius: 7px;
      color: #071b36;
      background: #fff8e3;
      font-size: 12px;
      cursor: pointer;
    }
    .patent-name-trigger:focus-visible,
    .patent-detail-close:focus-visible {
      outline: 3px solid rgba(21,89,214,.22);
      outline-offset: 2px;
    }
    body.patent-detail-open { overflow: hidden; }
    .patent-detail-layer {
      position: fixed;
      inset: 0;
      z-index: 1200;
      visibility: hidden;
      pointer-events: none;
    }
    .patent-detail-layer.is-open {
      visibility: visible;
      pointer-events: auto;
    }
    .patent-detail-backdrop {
      position: absolute;
      inset: 0;
      border: 0;
      background: rgba(7,27,54,.34);
      opacity: 0;
      cursor: default;
      backdrop-filter: blur(2px);
      transition: opacity .24s ease;
    }
    .patent-detail-layer.is-open .patent-detail-backdrop { opacity: 1; }
    .patent-detail-drawer {
      position: absolute;
      top: 0;
      right: 0;
      width: min(1180px, 92vw);
      height: 100%;
      display: grid;
      grid-template-rows: auto minmax(0, 1fr);
      color: #102039;
      background: #fff;
      box-shadow: -28px 0 70px rgba(7,27,54,.22);
      transform: translateX(102%);
      transition: transform .34s cubic-bezier(.22,.8,.25,1);
    }
    .patent-detail-layer.is-open .patent-detail-drawer { transform: translateX(0); }
    .patent-detail-header {
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: 18px;
      padding: 13px 18px 13px 24px;
      border-bottom: 1px solid #dfe8f2;
      background: linear-gradient(90deg, #f7fbff 0, #fff 48%);
    }
    .patent-detail-identity {
      min-width: 0;
      flex: 1;
      display: grid;
      gap: 3px;
    }
    .patent-detail-code {
      color: #46709f;
      font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .045em;
    }
    .patent-detail-title {
      margin: 0;
      overflow: hidden;
      color: #071b36;
      font-size: 17px;
      font-weight: 750;
      line-height: 1.35;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .patent-detail-close {
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 9px;
      font: inherit;
      font-weight: 700;
      cursor: pointer;
    }
    .patent-detail-header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .patent-detail-external {
      min-height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 13px;
      border: 1px solid #cbdcf0;
      border-radius: 9px;
      color: #1559d6;
      background: #f8fbff;
      font-size: 12px;
      font-weight: 700;
      line-height: 1.2;
    }
    .patent-detail-external:hover {
      border-color: #8fb5e8;
      background: #eef6ff;
    }
    .patent-detail-close {
      width: 36px;
      padding: 0;
      border: 1px solid #dde5ee;
      color: #50627a;
      background: #fff;
      font-size: 22px;
      font-weight: 400;
      line-height: 1;
    }
    .patent-detail-close:hover {
      color: #071b36;
      background: #f3f6f9;
    }
    .patent-detail-content {
      position: relative;
      min-height: 0;
      overflow: hidden;
      background: #f5f7fa;
    }
    .patent-detail-frame {
      width: 100%;
      height: 100%;
      display: block;
      border: 0;
      background: #fff;
    }
    .patent-detail-loading {
      position: absolute;
      inset: 0;
      z-index: 2;
      display: grid;
      place-content: center;
      gap: 12px;
      color: #6e7f94;
      background: #f8fbff;
      text-align: center;
      transition: opacity .18s ease, visibility .18s ease;
    }
    .patent-detail-loading.is-hidden {
      visibility: hidden;
      opacity: 0;
    }
    .patent-detail-failure {
      position: absolute;
      inset: 0;
      z-index: 3;
      display: grid;
      place-items: center;
      overflow: auto;
      padding: 32px 20px;
      background: #f8fbff;
    }
    .patent-detail-failure[hidden] { display: none; }
    .patent-detail-failure-card {
      width: min(460px, 100%);
      padding: 28px;
      border: 1px solid #d7e4f3;
      border-top: 3px solid #1559d6;
      border-radius: 12px;
      background: #fff;
      box-shadow: 0 18px 50px -34px rgba(7,27,54,.42);
    }
    .patent-detail-failure-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      margin-bottom: 18px;
      border-radius: 50%;
      color: #1559d6;
      background: #eaf3ff;
      font-size: 18px;
      font-weight: 800;
    }
    .patent-detail-failure-title {
      margin: 0 0 9px;
      color: #071b36;
      font-size: 19px;
      line-height: 1.35;
    }
    .patent-detail-failure-message {
      margin: 0;
      color: #52657d;
      font-size: 13px;
      line-height: 1.75;
    }
    .patent-detail-failure-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 22px;
    }
    .patent-detail-retry,
    .patent-detail-fallback-link {
      min-height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 16px;
      border-radius: 9px;
      font: inherit;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
    }
    .patent-detail-retry {
      border: 1px solid #1559d6;
      color: #fff;
      background: #1559d6;
    }
    .patent-detail-retry:hover:not(:disabled) { background: #0e49b5; }
    .patent-detail-retry:disabled {
      border-color: #a9b7c8;
      color: #edf2f7;
      background: #8c9caf;
      cursor: not-allowed;
    }
    .patent-detail-fallback-link {
      border: 1px solid #cbdcf0;
      color: #1559d6;
      background: #fff;
    }
    .patent-detail-fallback-link:hover {
      border-color: #8fb5e8;
      background: #f5f9ff;
    }
    .patent-detail-spinner {
      width: 28px;
      height: 28px;
      margin: 0 auto;
      border: 2px solid #dce8f6;
      border-top-color: #1559d6;
      border-radius: 50%;
      animation: patent-detail-spin .8s linear infinite;
    }
    @keyframes patent-detail-spin { to { transform: rotate(360deg); } }
    @media (prefers-reduced-motion: reduce) {
      .patent-detail-backdrop,
      .patent-detail-drawer,
      .patent-detail-loading { transition: none; }
      .patent-detail-spinner { animation: none; }
    }
    .favorite {
      margin-left: 8px;
      color: #68768a;
      cursor: pointer;
    }
    .empty {
      padding: 82px 0;
      color: #68768a;
      text-align: center;
      font-size: 14px;
    }
    .pager {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 0;
      padding: 14px 18px;
      border-top: 1px solid #e2e8f0;
      background: #fff;
      box-shadow: none;
      color: #102039;
    }
    .pager .btn-export {
      border-color: #dbe3ef;
      color: #071b36;
      background: #fff;
    }
    .pager .btn-export:hover { background: #f8fafc; }
    .pages {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .page-button {
      height: 28px;
      padding: 0 11px;
      border: 1px solid #dce3eb;
      border-radius: 8px;
      color: #334155;
      background: #fff;
      cursor: pointer;
    }
    .page-button:hover:not(:disabled) {
      border-color: #93c5fd;
      color: #1559d6;
      background: #eff6ff;
    }
    .page-button:disabled {
      color: #a8b2c1;
      background: #f8fafc;
      cursor: not-allowed;
    }
    .page-box {
      display: flex;
      border: 1px solid #dce3eb;
      border-radius: 10px;
      overflow: hidden;
    }
    .page-box a {
      padding: 5px 9px;
      border-left: 1px solid #dce3eb;
      background: #fff;
      cursor: pointer;
    }
    .page-box a:first-child { border-left: 0; }
    .page-box .current {
      color: #fff;
      background: #071b36;
    }
    .jump {
      width: 36px;
      height: 24px;
      border: 1px solid #dce3eb;
      border-radius: 8px;
      text-align: center;
    }
    .footer {
      margin-top: 0;
      padding: 0 24px;
      border-top: 1px solid #e2e8f0;
      color: #68768a;
      background: #f8fbff;
      line-height: 1.9;
    }
    .footer-main {
      width: min(1200px, 100%);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.25fr 1fr 1fr 1.05fr;
      gap: 40px;
      padding: 56px 0 40px;
      border-bottom: 1px solid #e2e8f0;
    }
    .footer-logo {
      width: 180px;
      margin-bottom: 16px;
    }
    .footer h2 {
      margin: 0 0 14px;
      color: #071b36;
      font-size: 13px;
      font-weight: 700;
    }
    .footer p {
      margin: 0;
      color: #68768a;
    }
    .footer-company {
      margin: 0 0 8px;
      color: #071b36;
      font-size: 14px;
      font-weight: 700;
    }
    .footer-brand-title {
      margin: 0 0 6px;
      color: #071b36;
      font-size: 13px;
      font-weight: 700;
    }
    .footer-brand-desc {
      max-width: 320px;
      font-size: 12px;
      line-height: 1.9;
    }
    .page-notes {
      margin-top: 18px;
      border-top: 0;
      background: #f5f7fa;
      color: #7d8ca0;
      font-size: 12px;
      line-height: 1.8;
    }
    .page-notes-inner {
      width: min(1200px, calc(100% - 48px));
      margin: 0 auto;
      padding: 14px 0 24px;
      border-top: 1px solid #e2e8f0;
    }
    .footer a:hover { color: #1559d6; }
    .footer-links {
      display: grid;
      gap: 8px;
      font-size: 12px;
    }
    .footer-note {
      width: min(1200px, 100%);
      margin: 0 auto;
      padding: 20px 0 28px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      font-size: 11px;
      color: #68768a;
    }
    .footer-bottom-links {
      display: flex;
      gap: 14px;
      align-items: center;
      flex-wrap: wrap;
    }
    .footer-contact-icons {
      display: flex;
      gap: 16px;
      padding-top: 8px;
      color: #94a3b8;
      font-size: 18px;
    }
    .footer-contact-icons button,
    .footer-contact-icons a {
      color: inherit;
      cursor: pointer;
      transition: color .18s ease;
    }
    .footer-contact-icons button:hover,
    .footer-contact-icons a:hover { color: #0066cc; }
    .kefu {
      position: fixed;
      top: 45%;
      right: 0;
      z-index: 80;
      width: 42px;
      overflow: visible;
      text-align: center;
    }
    .kefu-tab {
      width: 42px;
      min-height: 76px;
      padding: 10px 0;
      border: 0;
      border-radius: 8px 0 0 8px;
      color: #fff;
      background: #071b36;
      line-height: 1.25;
      font-weight: 700;
      cursor: default;
      box-shadow: 0 10px 28px rgba(15,23,42,.18);
    }
    .kefu-panel {
      position: absolute;
      top: 0;
      right: 48px;
      width: 280px;
      padding: 10px;
      border: 1px solid #dce3eb;
      border-radius: 8px;
      background: #fff;
      box-shadow: 0 18px 44px rgba(15,23,42,.18);
      opacity: 0;
      pointer-events: none;
      transform: translateX(8px);
      transition: opacity .18s ease, transform .18s ease;
    }
    .kefu:hover .kefu-panel,
    .kefu.is-open .kefu-panel {
      opacity: 1;
      pointer-events: auto;
      transform: translateX(0);
    }
    .kefu-panel-title {
      margin: 0 0 10px;
      color: #071b36;
      font-size: 14px;
      font-weight: 700;
    }
    .kefu-qr {
      width: 258px;
      height: auto;
      display: block;
      margin: 0 auto 8px;
      border: 0;
      border-radius: 6px;
    }
    .kefu-phone {
      margin: 0 0 10px;
      color: #44546a;
      font-size: 12px;
      line-height: 1.6;
    }
    .kefu-item {
      width: 100%;
      padding: 8px 0;
      border: 1px solid #dce3eb;
      border-radius: 8px;
      background: #f8fafc;
      color: #071b36;
      cursor: pointer;
    }
    .kefu-item:hover { background: #fff8e3; border-color: #f2c94c; }
    .mobile-note { display: none; }
    @media (max-width: 900px) {
      .apple-nav-inner { width: 100%; }
      .main { width: 100%; }
      .footer-main { width: calc(100% - 24px); }
      .page-notes-inner { width: calc(100% - 24px); }
      .apple-links { display: none; }
      .dropdown-panel { display: none; }
      .apple-nav { height: auto; }
      .apple-nav-inner { height: 56px; }
      .mobile-site-nav {
        width: calc(100% - 24px);
        margin: 0 auto;
        display: flex;
        gap: 20px;
        overflow-x: auto;
        border-top: 1px solid #dce3eb;
        scrollbar-width: none;
      }
      .mobile-site-nav::-webkit-scrollbar { display: none; }
      .mobile-site-nav a {
        flex: 0 0 auto;
        padding: 11px 0 12px;
        color: #34435a;
        font-weight: 700;
      }
      .mobile-site-nav a.active { color: #071b36; }
      .main { overflow-x: auto; }
      .search-main { min-width: 1340px; }
      .search-main > .search-row, .table-wrap, .pager { width: 1340px; }
      .footer-main { grid-template-columns: 1fr; gap: 22px; }
      .mobile-note {
        display: block;
        width: calc(100% - 24px);
        margin: 12px auto 0;
        color: #68768a;
      }
      .patent-detail-drawer {
        width: 100%;
        grid-template-rows: auto minmax(0, 1fr);
      }
      .patent-detail-header {
        min-height: 64px;
        gap: 10px;
        padding: 10px 10px 10px 14px;
      }
      .patent-detail-title { font-size: 15px; }
      .patent-detail-header-actions { gap: 6px; }
      .patent-detail-external {
        max-width: 86px;
        padding: 0 9px;
        text-align: center;
      }
      .patent-detail-failure-card { padding: 24px 20px; }
      .kefu {
        top: auto;
        bottom: 16px;
      }
      .kefu-tab { min-height: 60px; }
      .kefu-panel {
        top: auto;
        bottom: 0;
      }
    }

.filter-error { max-width: 1280px; margin: 16px auto; padding: 16px; background: #fff2eb; color: #94370f; border-radius: 8px; }
[aria-invalid="true"] { outline: 2px solid #a33a16; outline-offset: 2px; }
.fee-check { display: block; font-size: 11px; line-height: 1.5; color: #695c49; }
#pageJump { width: 62px; min-height: 40px; padding: 8px; border: 1px solid #cbd5e1; border-radius: 6px; }
#pageJumpError { color: #94370f; }
#selectionCount { display: inline-block; font-size: 12px; color: #526174; }
.pager { flex-wrap: wrap; gap: 16px; }
.pages { flex-wrap: wrap; }
.page-button, .patent-name-trigger, .reserve { min-height: 40px; }
.table-head input[type="checkbox"], .row-check, #selectAllBottom { width: 24px; height: 24px; margin: 8px; vertical-align: middle; }
@media (max-width: 900px) {
  body.inner-refresh.page-patents .main .search-main { min-width: 0; }
  body.inner-refresh.page-patents .main .filter-col label { min-height: 44px; font-size: 14px; }
  body.inner-refresh.page-patents .main .small-input,
  body.inner-refresh.page-patents .main .search-box input,
  body.inner-refresh.page-patents .main .markup-box input[type="number"],
  body.inner-refresh.page-patents .main button { min-height: 44px; }
  body.inner-refresh.page-patents .main .table-wrap { width: calc(100% - 24px); overflow: visible; background: transparent; box-shadow: none; }
  body.inner-refresh.page-patents .main .table-head { display: none; }
  body.inner-refresh.page-patents .main .patent-row { width: 100%; min-width: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0 0 14px; padding: 16px; border: 1px solid #d9e1ec; border-radius: 12px; background: white; align-items: start; }
  body.inner-refresh.page-patents .main .patent-row > div { padding: 0; min-width: 0; text-align: left; overflow-wrap: anywhere; }
  body.inner-refresh.page-patents .main .patent-row .name { grid-column: 1 / -1; grid-row: 1; }
  body.inner-refresh.page-patents .main .patent-row .name button { width: 100%; white-space: normal; text-align: left; font-size: 17px; line-height: 1.5; }
  body.inner-refresh.page-patents .main .patent-row .price { grid-column: 1; grid-row: 2; font-size: 20px; }
  body.inner-refresh.page-patents .main .patent-row .blue { grid-column: 2; grid-row: 2; }
  body.inner-refresh.page-patents .main .patent-row > div:first-child { grid-row: 6; }
  body.inner-refresh.page-patents .main .patent-row > div:first-child::after { content: '选择此专利'; }
  body.inner-refresh.page-patents .main .patent-row > div:nth-child(3) { grid-column: 1 / -1; }
  body.inner-refresh.page-patents .main .patent-row .fee-date::before { content: '缴费截止：'; }
  body.inner-refresh.page-patents .main .patent-row > div:last-child { grid-column: 2; grid-row: 6; }
  body.inner-refresh.page-patents .main .reserve { display: inline-flex; align-items: center; justify-content: center; min-width: 100px; }
  body.inner-refresh.page-patents .main .pager { width: 100%; min-width: 0; padding: 16px; height: auto; display: flex; flex-direction: column; align-items: stretch; }
  body.inner-refresh.page-patents .main .pages { justify-content: flex-start; gap: 10px; }
  body.inner-refresh.page-patents .filter-error { margin: 12px; }
}
@media (max-width: 900px) {
  body.inner-refresh.page-patents .main { width: 100%; overflow-x: visible; }
  body.inner-refresh.page-patents .main .search-main { min-height: 0; padding: 24px 0 54px; }
  body.inner-refresh.page-patents .main .search-main > .search-row { width: calc(100% - 32px); min-width: 0; display: grid; grid-template-columns: 1fr; gap: 16px; margin: 0 auto; padding: 0; }
  body.inner-refresh.page-patents .main .filter-col { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-rows: auto; gap: 8px; }
  body.inner-refresh.page-patents .main .range-group { width: 100%; display: grid; grid-template-columns: 72px minmax(0, 1fr) auto minmax(0, 1fr); gap: 8px; }
  body.inner-refresh.page-patents .main .range-group .small-input { width: 100%; min-width: 0; }
  body.inner-refresh.page-patents .main .search-label-strong { font-size: 18px; }
  body.inner-refresh.page-patents .main .keyword-wrap { width: 100%; min-width: 0; display: grid; gap: 8px; }
  body.inner-refresh.page-patents .main .search-box { width: 100%; }
  body.inner-refresh.page-patents .main .export-panel { width: 100%; min-width: 0; padding: 16px 0 0; border-left: 0; }
  body.inner-refresh.page-patents .main .markup-box,
  body.inner-refresh.page-patents .main .export-actions { flex-wrap: wrap; }
}
/* Export actions remain legible at all widths. */
body.inner-refresh.page-patents .main .export-actions .btn-export {
  min-height: 44px; padding: 8px 12px; font-size: 14px; line-height: 1.4;
  border: 1px solid rgba(255,255,255,.5); border-radius: 6px;
}
body.inner-refresh.page-patents .main .export-actions .btn-export:disabled { opacity: .55; cursor: not-allowed; }
body.inner-refresh.page-patents .main .pager .btn-export { min-height: 44px; padding: 8px 12px; font-size: 14px; line-height: 1.4; border: 1px solid #cbd5e1; border-radius: 6px; }