:root {
      --bg: #0f1411;
      --bg-soft: #18211b;
      --card: #ffffff;
      --text: #172018;
      --muted: #6c756c;
      --gold: #c6a15b;
      --gold-dark: #8f6d31;
      --green: #263929;
      --green-light: #eef3ec;
      --line: rgba(255, 255, 255, 0.16);
      --shadow: 0 22px 60px rgba(0, 0, 0, 0.16);
      --shadow-soft: 0 14px 34px rgba(18, 25, 21, 0.12);
      --radius: 18px;
      --max: 1680px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      color: var(--text);
      background: #f6f7f3;
      line-height: 1.7;
    }

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

    img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .container {
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 18px;
    }

    .section {
      padding: 78px 0;
    }

    .section-head {
      max-width: 920px;
      margin-bottom: 42px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--gold-dark);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.08em;
      margin-bottom: 14px;
    }

    .eyebrow::before {
      content: "";
      width: 36px;
      height: 1px;
      background: var(--gold);
    }

    h1, h2, h3 {
      line-height: 1.25;
      letter-spacing: 0;
    }

    h1 {
      font-size: clamp(42px, 5vw, 64px);
      color: #fff;
      margin-bottom: 22px;
    }

    h2 {
      font-size: clamp(30px, 3.4vw, 42px);
      margin-bottom: 18px;
    }

    h3 {
      font-size: 22px;
      margin-bottom: 12px;
    }

    p {
      color: var(--muted);
      font-size: 16px;
    }

    .btn-row {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 32px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 24px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: 0.25s ease;
      cursor: pointer;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--gold), #e1c17a);
      color: #1b160b;
      box-shadow: 0 12px 32px rgba(198, 161, 91, 0.28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(198, 161, 91, 0.38);
    }

    .btn-ghost {
      border-color: rgba(255, 255, 255, 0.28);
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
      backdrop-filter: blur(8px);
    }

    .btn-dark {
      background: var(--green);
      color: #fff;
    }

    /* Header */
    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
      background: rgba(15, 20, 17, 0.78);
      backdrop-filter: blur(18px);
    }

    .nav {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #fff;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0.04em;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--gold), #f0db9c);
      color: #1e271f;
      display: grid;
      place-items: center;
      font-size: 20px;
      font-weight: 900;
    }

    .logo-mark::before {
      content: "东峰";
    }

    .logo small {
      display: block;
      color: rgba(255, 255, 255, 0.62);
      font-size: 12px;
      letter-spacing: 0.08em;
      margin-top: 2px;
    }

    .menu {
      display: flex;
      align-items: center;
      gap: 30px;
      font-size: 15px;
    }

    .menu a {
      color: rgba(255, 255, 255, 0.82);
      transition: 0.25s ease;
    }

    .menu a:hover {
      color: var(--gold);
    }

    .nav-tel {
      padding: 10px 18px;
      border: 1px solid rgba(198, 161, 91, 0.55);
      border-radius: 999px;
      color: var(--gold) !important;
      font-weight: 700;
    }

    .hamburger {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: 12px;
      background: transparent;
      color: #fff;
      font-size: 22px;
    }

    /* Hero */
    .hero {
      position: relative;
      min-height: 84vh;
      display: flex;
      align-items: center;
      overflow: hidden;
      background: radial-gradient(circle at 70% 20%, rgba(198,161,91,0.2), transparent 30%), var(--bg);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(15,20,17,0.94) 0%, rgba(15,20,17,0.76) 42%, rgba(15,20,17,0.38) 100%),
        var(--df-hero-image-1) center/cover;
      opacity: 0.95;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 150px;
      background: linear-gradient(0deg, #fff 0%, rgba(255,255,255,0) 100%);
      opacity: 0.12;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 960px;
      padding-top: 92px;
      padding-bottom: 64px;
    }

    .hero p {
      color: rgba(255, 255, 255, 0.72);
      font-size: clamp(17px, 2vw, 21px);
      max-width: 840px;
    }

    .hero-proof {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-top: 22px;
      max-width: 920px;
    }

    .hero-proof span {
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 10px;
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 12px;
      background: rgba(255,255,255,0.08);
      color: rgba(255,255,255,0.82);
      font-size: 13px;
      font-weight: 700;
    }

    .hero-badges {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    .badge {
      color: #fff;
      border: 1px solid rgba(255,255,255,0.18);
      background: rgba(255,255,255,0.07);
      border-radius: 999px;
      padding: 8px 14px;
      font-size: 14px;
    }

    .hero-stats {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      margin-top: 38px;
      max-width: 1080px;
    }

    .stat {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(10px);
      padding: 24px;
      color: #fff;
    }

    .stat strong {
      display: block;
      font-size: 30px;
      color: var(--gold);
      margin-bottom: 4px;
    }

    .stat span {
      color: rgba(255,255,255,0.66);
      font-size: 14px;
    }

    /* Advantages */
    .advantages {
      background: #fff;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .adv-card {
      padding: 28px;
      border-radius: 8px;
      background: #f8f8f3;
      border: 1px solid #eceade;
      transition: 0.25s ease;
      min-height: 250px;
    }

    .adv-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow);
      background: #fff;
    }

    .icon {
      width: 54px;
      height: 54px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: var(--green);
      color: var(--gold);
      font-size: 24px;
      margin-bottom: 22px;
    }

    /* Services */
    .services {
      background: var(--green-light);
    }

    .services .section-head {
      max-width: 1080px;
      margin-bottom: 34px;
    }

    .service-layout {
      display: grid;
      grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
      gap: 34px;
      align-items: start;
    }

    .service-image {
      aspect-ratio: 16 / 10;
      min-height: 0;
      height: 100%;
      max-height: 560px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .service-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .service-item {
      background: #fff;
      border-radius: 8px;
      padding: 24px;
      display: grid;
      grid-template-columns: 62px 1fr;
      gap: 18px;
      align-items: start;
      border: 1px solid #e8eadf;
      min-height: 220px;
    }

    .service-num {
      width: 54px;
      height: 54px;
      border-radius: 8px;
      background: #f2ead7;
      color: var(--gold-dark);
      display: grid;
      place-items: center;
      font-size: 22px;
      font-weight: 900;
    }

    .service-tags {
      margin-top: 14px;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .service-tags span {
      font-size: 13px;
      color: var(--green);
      background: #edf3ea;
      border-radius: 999px;
      padding: 6px 10px;
    }

    /* Articles */
    .articles {
      background: #f3f5ef;
    }

    .article-top {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 32px;
    }

    .article-top .section-head {
      margin-bottom: 0;
    }

    .article-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 22px;
    }

    .article-featured,
    .article-side-card {
      background: #fff;
      border: 1px solid #e8eadf;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: 0.25s ease;
    }

    .article-featured:hover,
    .article-side-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .article-featured-img {
      height: 310px;
      background: #dfe5da;
    }

    .article-content {
      padding: 26px;
    }

    .article-meta {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      color: var(--gold-dark);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .article-side {
      display: grid;
      gap: 18px;
    }

    .article-side-card {
      display: grid;
      grid-template-columns: 150px 1fr;
      min-height: 150px;
    }

    .article-side-img {
      background: #dfe5da;
    }

    .article-side-card .article-content {
      padding: 20px;
    }

    .article-side-card h3 {
      font-size: 18px;
      margin-bottom: 8px;
    }

    .article-side-card p {
      font-size: 14px;
    }

    .article-cats {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 26px;
    }

    .article-cats span {
      display: inline-flex;
      border-radius: 999px;
      padding: 8px 13px;
      background: #edf3ea;
      color: var(--green);
      font-size: 13px;
      font-weight: 700;
    }

    .cms-note {
      margin-top: 24px;
      padding: 18px 20px;
      border-radius: 20px;
      background: #fff;
      border: 1px dashed #c9bea1;
      color: var(--muted);
      font-size: 14px;
    }

    /* Process */
    .process {
      background: var(--bg);
      color: #fff;
    }

    .process p,
    .process .section-head p {
      color: rgba(255,255,255,0.68);
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .step {
      position: relative;
      padding: 28px 22px;
      border-radius: 8px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.12);
    }

    .step b {
      display: block;
      color: var(--gold);
      font-size: 28px;
      margin-bottom: 20px;
    }

    .step h3 {
      color: #fff;
      font-size: 19px;
    }

    .step p {
      font-size: 14px;
    }

    /* Cases */
    .cases {
      background: #fff;
    }

    .cases .section-head {
      max-width: 820px;
    }

    .case-tabs {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 30px;
    }

    .tab-btn {
      border: 1px solid #dfe2d8;
      background: #fff;
      color: var(--green);
      padding: 10px 18px;
      border-radius: 999px;
      font-weight: 700;
      cursor: pointer;
      transition: 0.22s ease;
    }

    .tab-btn.active,
    .tab-btn:hover {
      background: var(--green);
      color: #fff;
      border-color: var(--green);
    }

    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .case-card {
      overflow: hidden;
      border-radius: 8px;
      background: #f8f8f3;
      box-shadow: var(--shadow-soft);
      transition: 0.25s ease;
    }

    .case-card:first-child {
      grid-column: span 2;
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
    }

    .case-img {
      position: relative;
      aspect-ratio: 16 / 10;
      height: auto;
      overflow: hidden;
      background: #d9dfd4;
    }

    .case-card:first-child .case-img {
      aspect-ratio: 16 / 9;
      height: auto;
    }

    .case-open-hint {
      position: absolute;
      right: 12px;
      bottom: 12px;
      padding: 6px 10px;
      border-radius: 6px;
      background: rgba(15,20,17,0.78);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      opacity: 0;
      transform: translateY(4px);
      transition: 0.2s ease;
    }

    .case-card:hover .case-open-hint { opacity: 1; transform: translateY(0); }

    .case-body {
      padding: 22px;
    }

    .case-body p {
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .case-label {
      color: var(--gold-dark);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    /* Contact */
    .contact {
      background: linear-gradient(135deg, var(--green) 0%, #121915 100%);
      color: #fff;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 36px;
      align-items: stretch;
    }

    .contact p {
      color: rgba(255,255,255,0.7);
    }

    .contact-card {
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.13);
      border-radius: 8px;
      padding: 34px;
      min-width: 0;
      backdrop-filter: blur(12px);
    }

    .contact-info {
      display: grid;
      gap: 18px;
      margin-top: 28px;
    }

    .contact-line {
      display: flex;
      gap: 14px;
      align-items: center;
      color: rgba(255,255,255,0.86);
    }

    .contact-line strong {
      flex: 1;
      min-width: 0;
      line-height: 1.65;
      overflow-wrap: anywhere;
    }

    .contact-line span { display: none; }

    .contact-line a { color: inherit; text-decoration: none; }

    .contact-wechat {
      display: flex;
      gap: 18px;
      align-items: center;
      margin-top: 26px;
      padding: 16px;
      border: 1px solid rgba(255,255,255,0.14);
      border-radius: 12px;
      background: rgba(0,0,0,0.12);
    }

    .contact-wechat img {
      width: 186px;
      height: 186px;
      flex: 0 0 186px;
      padding: 5px;
      object-fit: contain;
      border-radius: 8px;
      background: #fff;
    }

    .contact-wechat strong { display: block; margin-bottom: 6px; font-size: 18px; }
    .contact-wechat p { margin: 0; font-size: 14px; }

    form {
      display: grid;
      gap: 14px;
    }

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.08);
      color: #fff;
      border-radius: 16px;
      padding: 15px 16px;
      font-size: 15px;
      outline: none;
      font-family: inherit;
    }

    input::placeholder,
    textarea::placeholder {
      color: rgba(255,255,255,0.48);
    }

    textarea {
      min-height: 130px;
      resize: vertical;
    }

    select option {
      color: #111;
    }

    footer {
      background: #0a0e0b;
      color: rgba(255,255,255,0.58);
      padding: 28px 0;
      font-size: 14px;
    }

    .footer-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    .float-contact {
      position: fixed;
      right: 18px;
      bottom: 22px;
      z-index: 40;
      display: grid;
      gap: 10px;
    }

    .float-contact a {
      width: 54px;
      height: 54px;
      border-radius: 18px;
      background: var(--gold);
      color: #1b160b;
      display: grid;
      place-items: center;
      font-size: 22px;
      font-weight: 900;
      box-shadow: 0 14px 32px rgba(0,0,0,0.22);
    }

    /* 文章列表页按钮 */
    .view-all-articles {
      margin-top: 20px;
      text-align: center;
    }

    .view-all-articles .btn-dark {
      padding: 0 32px;
    }

    @media (max-width: 980px) {
      .grid-4,
      .steps,
      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .article-grid {
        grid-template-columns: 1fr;
      }

      .service-layout,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .contact-card { padding: 26px; }
      .contact-line { align-items: flex-start; }
      .contact-wechat { align-items: flex-start; }

      .service-image {
        aspect-ratio: 16 / 9;
        max-height: none;
      }
    }

    .icp-link {
      display: block;
      margin-top: 12px;
      text-align: center;
      color: rgba(255,255,255,0.58);
      text-decoration: none;
    }

    .icp-link:hover { color: var(--gold); }

    .official-links { display:flex; flex-wrap:wrap; justify-content:center; gap:10px 16px; margin-top:10px; }
    .official-links a, .official-links button { border:0; padding:0; background:none; color:rgba(255,255,255,0.58); font:inherit; cursor:pointer; text-decoration:none; }
    .official-links a:hover, .official-links button:hover { color:var(--gold); }
    .qr-modal[hidden] { display:none; }
    .qr-modal { position:fixed; inset:0; z-index:50; display:grid; place-items:center; padding:24px; background:rgba(10,14,11,.62); }
    .qr-dialog { width:min(320px,100%); padding:22px; border-radius:8px; background:#fff; text-align:center; color:var(--text); }
    .qr-dialog img { width:220px; max-width:100%; display:block; margin:14px auto; }
    .qr-close { border:0; background:var(--green); color:#fff; padding:9px 22px; border-radius:6px; cursor:pointer; }

    .engineering-entry { display: none; }

    @media (max-width: 760px) {
      .container {
        padding: 0 14px;
      }

      body {
        padding-bottom: 62px;
      }

      .section {
        padding: 40px 0;
      }

      h1 {
        font-size: 29px;
        line-height: 1.16;
      }

      h2 {
        font-size: 25px;
      }

      h3 {
        font-size: 18px;
      }

      p {
        font-size: 15px;
      }

      header {
        position: sticky;
        background: rgba(12, 20, 14, .96);
        box-shadow: 0 2px 14px rgba(0,0,0,.14);
      }

      .nav {
        height: 58px;
        min-height: 0;
        display: flex;
        align-items: center;
        gap: 8px;
        padding-top: 0;
        padding-bottom: 0;
      }

      .logo {
        min-width: 0;
        gap: 9px;
      }

      .logo-mark {
        width: 44px;
        height: 34px;
        border-radius: 8px;
        font-size: 14px;
      }

      .logo > span:last-child {
        display: none;
      }

      .menu,
      .menu.open {
        position: static;
        display: flex;
        flex: 1;
        align-items: center;
        gap: 0;
        width: auto;
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        overflow: visible;
      }

      .menu a {
        display: flex;
        flex: 1 1 0;
        width: 0;
        min-height: 42px;
        align-items: center;
        justify-content: center;
        padding: 4px 2px;
        background: transparent;
        color: rgba(255,255,255,0.9);
        font-size: 13px;
        font-weight: 700;
        letter-spacing: .04em;
        position: relative;
        white-space: nowrap;
      }

      .menu a::after { content: ""; position: absolute; bottom: 5px; width: 13px; height: 2px; border-radius: 2px; background: var(--gold); opacity: 0; transition: opacity .2s ease; }
      .menu a:hover, .menu a:focus { color: #f0d584; }
      .menu a:hover::after, .menu a:focus::after { opacity: 1; }

      .menu a[data-short-label] {
        font-size: 0;
      }

      .menu a[data-short-label]::before {
        content: attr(data-short-label);
        font-size: 13px;
      }

      .menu a[href="/#process"],
      .menu .nav-tel {
        display: none;
      }

      .hamburger {
        display: none;
      }

      .logo small {
        display: none;
      }

      .hero {
        min-height: auto;
        display: block;
        padding: 0;
        background: #fff;
        overflow: visible;
      }

      .hero::before {
        position: relative;
        display: block;
        inset: auto;
        width: 100%;
        aspect-ratio: 16 / 9;
        background:
          linear-gradient(0deg, rgba(15,20,17,0.18) 0%, rgba(15,20,17,0.18) 100%),
          var(--df-hero-image-2) center/cover;
        opacity: 1;
      }

      .hero::after {
        display: none;
      }

      .hero-content {
        background: #fff;
        color: var(--text);
        margin-top: 0;
        padding-top: 0;
        padding-bottom: 0;
      }

      .hero-content h1 {
        color: var(--text);
        max-width: none;
        margin-top: 18px;
        margin-bottom: 10px;
        font-size: 20px;
        white-space: nowrap;
      }

      .hero-badges {
        display: none;
      }

      .badge {
        border-color: #e1d6bc;
        background: #f8f2e2;
        color: var(--gold-dark);
        padding: 5px 9px;
        font-size: 12px;
        text-align: center;
        white-space: nowrap;
      }

      .badge:nth-child(n+3) {
        display: none;
      }

      .hero p {
        color: var(--muted);
        font-size: 14px;
        line-height: 1.75;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
      }

      .btn-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 9px;
        margin-top: 16px;
      }

      .btn-row .btn {
        width: 100%;
        min-height: 42px;
        padding: 0 12px;
        border-radius: 8px;
        font-size: 14px;
      }

      .hero .btn-ghost {
        border-color: #dfe2d8;
        color: var(--green);
        background: #fff;
        backdrop-filter: none;
      }

      .hero-proof {
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        margin: 14px -14px 0;
        background: #e8eadf;
        border-top: 1px solid #e8eadf;
        border-bottom: 1px solid #e8eadf;
        max-width: none;
      }

      .hero-proof span {
        min-height: 38px;
        border: 0;
        border-radius: 0;
        background: #f8f8f3;
        color: var(--green);
        font-size: 13px;
      }

      .hero-stats {
        display: none;
      }

      .stat {
        padding: 18px 14px;
      }

      .stat strong {
        font-size: 24px;
      }

      .steps,
      .case-grid {
        grid-template-columns: 1fr;
      }

      /* 手机首页直接展示作品，避免重复的文字介绍占据首屏后的空间。 */
      .advantages,
      .services {
        display: none;
      }

      .engineering-entry {
        display: block;
        padding: 20px 0 0;
        background: #f6f7f3;
      }

      .engineering-entry-card {
        position: relative;
        display: block;
        min-height: 176px;
        overflow: hidden;
        border-radius: 8px;
        padding: 22px 20px;
        color: #fff;
        background: linear-gradient(90deg, rgba(12, 23, 15, .88), rgba(12, 23, 15, .42)),
          var(--df-hero-image-3) center/cover;
      }

      .engineering-entry-card .eyebrow { color: #e4c471; margin-bottom: 8px; font-size: 12px; }
      .engineering-entry-card h2 { color: #fff; font-size: 24px; margin: 0 0 6px; }
      .engineering-entry-card p { color: rgba(255,255,255,.82); font-size: 13px; margin: 0; }
      .engineering-entry-card strong { display: block; margin-top: 16px; color: #f1d485; font-size: 13px; }

      .article-top {
        align-items: flex-start;
        flex-direction: column;
      }

      .article-side-card {
        grid-template-columns: 1fr;
      }

      .article-side-img {
        height: 190px;
      }

      .services .section-head,
      .cases .section-head {
        max-width: none;
        margin-bottom: 18px;
      }

      .case-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 6px;
        margin: 0 -14px 22px;
        padding-left: 14px;
      }

      .cases {
        padding-top: 22px;
      }

      .tab-btn {
        white-space: nowrap;
        padding: 9px 14px;
        font-size: 14px;
      }

      .case-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
      }

      .case-img {
        aspect-ratio: 4 / 3;
        height: auto;
      }

      .case-card:first-child {
        grid-column: 1 / -1;
      }

      .case-card:first-child .case-img {
        aspect-ratio: 16 / 10;
        height: auto;
      }

      .case-body {
        padding: 10px;
      }

      .case-label {
        font-size: 12px;
        margin-bottom: 4px;
      }

      .case-body h3 {
        font-size: 15px;
        margin-bottom: 0;
        line-height: 1.35;
      }

      .case-body p {
        display: none;
      }

      .case-card:first-child .case-body {
        padding: 12px;
      }

      .case-card:first-child .case-body p {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        font-size: 14px;
        margin-top: 6px;
      }

      .case-open-hint {
        opacity: 1;
        transform: none;
        right: 8px;
        bottom: 8px;
        padding: 5px 8px;
        font-size: 11px;
      }

      .articles {
        padding-top: 34px;
      }

      .article-top {
        margin-bottom: 16px;
      }

      .article-top .section-head p,
      .article-top > .btn,
      .article-featured .article-content p,
      .article-featured .article-cats,
      .article-side-card .article-content p,
      .view-all-articles {
        display: none;
      }

      .article-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .article-featured,
      .article-side-card {
        display: block;
      }

      .article-featured > a,
      .article-side-card > a {
        display: block;
      }

      .article-featured-img,
      .article-side-img {
        height: auto;
        aspect-ratio: 16 / 9;
      }

      .article-featured .article-content,
      .article-side-card .article-content {
        padding: 14px;
      }

      .article-featured .article-meta,
      .article-side-card .article-meta {
        margin-bottom: 6px;
        font-size: 12px;
      }

      .article-featured .article-meta span:nth-child(2),
      .article-side-card .article-meta span:nth-child(2) {
        display: none;
      }

      .article-featured h3,
      .article-side-card h3 {
        display: -webkit-box;
        font-size: 16px;
        line-height: 1.45;
        margin-bottom: 0;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
      }

      .article-side {
        display: contents;
      }

      /* 流程区用连续时间轴代替堆叠大卡片，保留重点但减少手机端高度。 */
      .process {
        background: #f3f5ef;
        color: var(--text);
      }

      .process p,
      .process .section-head p {
        color: var(--muted);
      }

      .process .section-head {
        margin-bottom: 18px;
      }

      .process .section-head p {
        display: none;
      }

      .process .eyebrow {
        color: var(--gold-dark);
      }

      .process h2 {
        color: var(--text);
      }

      .steps {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
      }

      .step {
        display: grid;
        grid-template-columns: 42px minmax(0, 1fr);
        align-items: center;
        min-height: 60px;
        padding: 7px 0;
        border: 0;
        border-radius: 0;
        background: transparent;
      }

      .step b {
        position: relative;
        width: 36px;
        height: 36px;
        margin: 0;
        border-radius: 50%;
        display: grid;
        place-items: center;
        background: #e8dcc0;
        color: var(--gold-dark);
        font-size: 15px;
      }

      .step h3 {
        color: var(--green);
        font-size: 17px;
        line-height: 1.35;
        margin: 0;
      }

      .step p {
        display: none;
      }

      .step:not(:last-child) b::after {
        content: "";
        position: absolute;
        top: 41px;
        left: 17px;
        width: 1px;
        height: 26px;
        background: #d5c5a1;
      }

      .float-contact {
        left: 0;
        right: 0;
        bottom: 0;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 8px 10px;
        background: rgba(255,255,255,0.96);
        border-top: 1px solid #e8eadf;
        backdrop-filter: blur(12px);
      }

      .float-contact a {
        width: 100%;
        height: 42px;
        border-radius: 8px;
        font-size: 0;
        box-shadow: none;
      }

      .float-contact a::after {
        content: "电话咨询";
        font-size: 14px;
      }

      .contact-wechat { display: block; text-align: center; }
      .contact-wechat img { margin: 0 auto 12px; width: 220px; height: 220px; }

      .contact-info { gap: 12px; }
      .contact-line {
        display: block;
        padding: 14px;
        border: 1px solid rgba(255,255,255,0.12);
        border-radius: 10px;
        background: rgba(0,0,0,0.12);
      }
      .contact-line span { display: none; }
      .contact-line strong { display: block; font-size: 15px; }

      .float-contact a:nth-child(2)::after {
        content: "在线咨询";
      }
    }

    @media (max-width: 420px) {
      .nav { gap: 5px; }
      .logo-mark { width: 40px; height: 32px; font-size: 13px; }
      .menu a { font-size: 12px; padding: 4px 1px; }
      .menu a[data-short-label]::before { font-size: 12px; }

      h1 {
        font-size: 27px;
      }

      .hero-content h1 {
        font-size: 18px;
      }

      .badge {
        font-size: 11px;
      }

      .case-body h3 {
        font-size: 14px;
      }
    }