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

    :root {
      --red: #b11515;
      --red-dark: #940808;
      ---red-light: #ef1a1a;
      --red-soft: #FFEBEB;
      --white: #ffffff;
      --gray-100: #f8f6f5;
      --gray-200: #ece8e6;
      --gray-300: #d6ceca;
      --text-primary: #1e1412;
      --text-muted: #5a4a45;
      --shadow: 0 20px 48px rgba(179, 27, 27, 0.10);
      --shadow-hover: 0 28px 64px rgba(179, 27, 27, 0.16);
      --radius: 24px;
      --radius-sm: 16px;
      --container: 1180px;
      --header-h: 72px;
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      background: var(--white);
      color: var(--text-primary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

    img {
      max-width: 100%;
      display: block;
    }

    section[id] {
      scroll-margin-top: 96px;
    }

    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    /* ===== 头部 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(179, 27, 27, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      min-height: var(--header-h);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
    }

    .brand-logo {
      width: 64px;           /* 从 48px 改大 */
      height: 52px;
      background: var(--white);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 32px;       /* 从 22px 改大 */
      color: var(--red-dark);
      flex-shrink: 0;
      box-shadow: 0 6px 14px rgba(0,0,0,0.08);
    }

    .brand strong {
      display: block;
      font-size: 16px;
      font-weight: 700;
      line-height: 1.2;
    }

    .brand small {
      display: block;
      font-size: 11px;
      opacity: 0.78;
      line-height: 1.2;
    }

    .site-nav {
      display: flex;
      gap: 20px;
      color: rgba(255, 255, 255, 0.90);
      font-size: 14px;
      align-items: center;
    }

    .site-nav a {
      position: relative;
      transition: color 0.25s ease;
      font-weight: 500;
    }

    .site-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 0;
      height: 2px;
      background: var(--white);
      transition: width 0.25s ease;
    }

    .site-nav a:hover {
      color: #fff;
    }
    .site-nav a:hover::after {
      width: 100%;
    }

    .menu-toggle {
      display: none;
      background: transparent;
      color: #fff;
      border: 0;
      font-size: 28px;
      cursor: pointer;
      line-height: 1;
      padding: 4px;
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      min-height: 100svh;
      display: grid;
      place-items: center;
      background: var(--red-dark);
      color: #fff;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0.30;
      transform: scale(1.02);
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 70% 30%, rgba(179,27,27,0.40), rgba(122,18,18,0.85) 80%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 40px 0;
      max-width: 820px;
    }

    .hero-topline {
      font-size: 14px;
      letter-spacing: 0.10em;
      opacity: 0.80;
      margin-bottom: 24px;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(56px, 10vw, 120px);
      line-height: 0.92;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.02em;
    }

    .hero h1 span {
      font-size: 0.48em;
      display: block;
      margin-top: 8px;
      font-weight: 400;
      opacity: 0.85;
    }

    .hero p {
      font-size: 18px;
      opacity: 0.92;
      margin: 24px 0 34px;
    }

    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      border-radius: 999px;
      font-weight: 600;
      transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    }
    .btn:hover {
      transform: translateY(-3px);
    }

    .btn-primary {
      background: var(--white);
      color: var(--red-dark);
      box-shadow: 0 12px 30px rgba(179, 27, 27, 0.25);
    }
    .btn-primary:hover {
      background: #fef6f4;
    }

    .btn-secondary {
      border: 1px solid rgba(255, 255, 255, 0.35);
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.14);
      border-color: rgba(255, 255, 255, 0.60);
    }

    /* ===== Cover 章节分隔 ===== */
    .cover-section {
      position: relative;
      min-height: 56svh;
      display: grid;
      place-items: center;
      color: #fff;
      overflow: hidden;
      background: var(--red-dark);
    }

    .cover-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0.25;
    }

    .cover-gradient {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(122,18,18,0.92) 0%, rgba(179,27,27,0.60) 70%, rgba(179,27,27,0.20) 100%);
    }

    .cover-content {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 60px 0;
    }

    .cover-kicker {
      font-size: clamp(38px, 6vw, 74px);
      font-weight: 800;
      letter-spacing: 0.04em;
      line-height: 1;
    }

    .cover-content h2 {
      color: #fff;
      font-size: clamp(36px, 5vw, 68px);
      margin-top: 14px;
      letter-spacing: -0.01em;
    }

    .cover-content p {
      font-size: 26px;
      letter-spacing: 0.06em;
      font-weight: 600;
      margin-top: 8px;
      opacity: 0.85;
    }

    /* ===== 通用板块 ===== */
    .section {
      padding: 80px 0;
    }

    .section-alt {
      background: var(--gray-100);
    }

    .section-head {
      margin-bottom: 40px;
    }

    .section-head.split {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 24px;
    }

    .section-head p {
      max-width: 540px;
      color: var(--text-muted);
      margin: 0;
    }

    .eyebrow {
      color: var(--red);
      font-size: 13px;
      letter-spacing: 0.14em;
      font-weight: 700;
      text-transform: uppercase;
    }

    h2 {
      margin: 8px 0 0;
      font-size: clamp(32px, 4vw, 52px);
      line-height: 1.06;
      color: var(--red-dark);
      font-weight: 800;
    }

    /* ===== 目录 ===== */
    .section-contents {
      background: var(--gray-100);
      padding: 64px 0 80px;
    }

    .contents-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .contents-grid a {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 30px;
      min-height: 180px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .contents-grid a:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }

    .contents-grid span {
      display: block;
      color: var(--red);
      font-size: 28px;
      font-weight: 700;
    }

    .contents-grid strong {
      display: block;
      font-size: 22px;
      line-height: 1.3;
      margin-top: 6px;
    }

    .contents-grid small {
      color: var(--text-muted);
      font-size: 15px;
      margin-top: 8px;
    }

    /* ===== 公司介绍 (红白) ===== */
    .intro-section {
      background: var(--white);
    }

    .intro-section .two-col {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .intro-divider {
      width: 80px;
      height: 4px;
      background: var(--red);
      border-radius: 999px;
      margin: 0 0 24px;
    }

    .visual-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--gray-200);
      min-height: 360px;
    }
    .visual-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* ===== 使命 ===== */
    .mission-section {
      background: var(--gray-100);
    }
    .mission-section .two-col.reverse {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 56px;
      align-items: center;
    }
    .accent-line {
      width: 180px;
      height: 5px;
      margin-top: 24px;
      background: var(--red);
      border-radius: 999px;
    }

    /* ===== 核心价值观 ===== */
    .values-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 18px;
    }
    .values-grid article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 22px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .values-grid article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .values-grid h3 {
      font-size: 20px;
      color: var(--red-dark);
      margin-bottom: 12px;
    }
    .values-grid p {
      color: var(--text-muted);
      margin: 0;
    }

    /* ===== 企业优势 ===== */
    .advantages-section {
      background: var(--gray-100);
    }
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 18px;
    }
    .advantage-grid article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 22px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .advantage-grid article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .advantage-grid h3 {
      font-size: 20px;
      color: var(--red-dark);
      margin-bottom: 12px;
    }
    .advantage-grid p {
      color: var(--text-muted);
      margin: 0;
    }

    /* ===== 政策支持 ===== */
    .policy-section {
      background: var(--white);
    }
    .policy-panel {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--gray-200);
      box-shadow: var(--shadow);
    }
    .policy-copy {
      padding: 56px 48px 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .policy-copy h2 {
      max-width: 480px;
      font-size: clamp(28px, 3vw, 40px);
      margin: 0 0 18px;
      color: var(--red-dark);
    }
    .policy-copy p {
      max-width: 560px;
      color: var(--text-muted);
      margin: 0 0 24px;
      font-size: 16px;
      line-height: 1.9;
    }
    .policy-list {
      max-width: 560px;
      list-style: none;
      padding: 0;
    }
    .policy-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 14px;
      font-size: 16px;
      color: var(--text-primary);
    }
    .policy-list li::before {
      content: "◆";
      position: absolute;
      left: 0;
      color: var(--red);
      font-size: 14px;
    }
    .policy-doc {
      margin-top: 20px;
      width: 140px;
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--gray-200);
      box-shadow: var(--shadow);
    }
    .policy-ship {
      min-height: 480px;
      overflow: hidden;
      background: var(--gray-100);
    }
    .policy-ship img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* ===== 服务范围 ===== */
    .services-section {
      background: var(--gray-100);
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .service-grid article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .service-grid article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .service-grid h3 {
      font-size: 21px;
      color: var(--red-dark);
      margin-bottom: 12px;
    }
    .service-grid p {
      color: var(--text-muted);
      margin: 0;
    }

    /* ===== 全流程 ===== */
    .scheme-section {
      background: var(--white);
    }
    .timeline-grid {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 14px;
    }
    .timeline-grid div {
      padding: 20px 12px;
      background: var(--red-dark);
      color: #fff;
      clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
      min-height: 100px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 14px 30px rgba(179, 27, 27, 0.18);
    }

    /* ===== 技术创新 ===== */
    .pill-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .pill-grid span {
      padding: 12px 20px;
      border-radius: 999px;
      background: var(--red-soft);
      color: var(--red-dark);
      font-weight: 600;
      border: 1px solid #f0d0d0;
      transition: transform 0.25s ease, background 0.25s ease;
    }
    .pill-grid span:hover {
      transform: translateY(-3px);
      background: #fce0dc;
    }

    /* ===== 专业团队 ===== */
    .team-section {
      background: var(--gray-100);
    }
    .team-section .two-col {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 48px;
      align-items: start;
    }
    .team-list {
      display: grid;
      gap: 18px;
    }
    .team-list article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 28px 24px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .team-list article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .team-list h3 {
      font-size: 20px;
      color: var(--red-dark);
      margin-bottom: 10px;
    }
    .team-list p {
      color: var(--text-muted);
      margin: 0;
    }

    /* ===== 服务流程 ===== */
    .process-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }
    .process-list article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 28px 24px 72px;
      position: relative;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .process-list article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .process-list span {
      position: absolute;
      left: 20px;
      top: 24px;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--red);
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 700;
      font-size: 18px;
    }
    .process-list h3 {
      font-size: 19px;
      color: var(--red-dark);
      margin-bottom: 8px;
    }
    .process-list p {
      color: var(--text-muted);
      margin: 0;
      font-size: 15px;
    }

    /* ===== 项目案例 ===== */
    .project-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .project-grid article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius);
      padding: 28px 24px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .project-grid article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .project-grid .tag {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 999px;
      background: var(--red-soft);
      color: var(--red-dark);
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .project-grid h3 {
      font-size: 19px;
      color: var(--red-dark);
      margin-bottom: 10px;
    }
    .project-grid p {
      color: var(--text-muted);
      margin: 0;
      font-size: 15px;
    }

    /* ===== 合作效益 ===== */
    .benefits-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: stretch;
    }
    .benefit-cards {
      display: grid;
      gap: 16px;
    }
    .benefit-cards article {
      background: var(--white);
      border: 1px solid var(--gray-200);
      border-radius: var(--radius-sm);
      padding: 24px 24px 20px;
      box-shadow: var(--shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .benefit-cards article:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--red-light);
    }
    .benefit-cards h3 {
      font-size: 19px;
      color: var(--red-dark);
      margin-bottom: 8px;
    }
    .benefit-cards p {
      color: var(--text-muted);
      margin: 0;
      font-size: 15px;
    }

    /* ===== 联系我们 ===== */
    .contact-section {
      background: var(--red-dark);
      color: #fff;
    }
    .contact-card {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 32px;
      padding: 44px 40px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.10);
      backdrop-filter: blur(4px);
    }
    .contact-card h2 {
      color: #fff;
    }
    .contact-card .eyebrow {
      color: #f7baba;
    }
    .contact-card p {
      color: rgba(255, 255, 255, 0.85);
      margin: 6px 0;
    }
    .contact-people {
      display: grid;
      gap: 16px;
    }
    .contact-people article {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.10);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      transition: transform 0.25s ease, background 0.25s ease;
    }
    .contact-people article:hover {
      transform: translateY(-4px);
      background: rgba(255, 255, 255, 0.10);
    }
    .contact-people h3 {
      font-size: 20px;
      margin-bottom: 6px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #5a0e0e;
      color: rgba(255, 255, 255, 0.70);
      padding: 18px 0;
    }
    .site-footer .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .site-footer a {
      color: #fff;
      font-weight: 500;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1080px) {
      .values-grid, .advantage-grid { grid-template-columns: repeat(2, 1fr); }
      .project-grid { grid-template-columns: repeat(2, 1fr); }
      .timeline-grid { grid-template-columns: repeat(4, 1fr); }
      .policy-panel { grid-template-columns: 1fr; }
      .policy-ship { min-height: 300px; }
    }

    @media (max-width: 820px) {
      .menu-toggle { display: block; }
      .site-nav {
        position: absolute;
        left: 16px;
        right: 16px;
        top: var(--header-h);
        padding: 16px;
        background: var(--red-dark);
        border-radius: 18px;
        display: none;
        flex-direction: column;
        box-shadow: var(--shadow);
        max-height: calc(100vh - 110px);
        overflow-y: auto;
      }
      .site-nav.open { display: flex; }
      .site-nav a { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
      .site-nav a:last-child { border-bottom: 0; }
      .site-nav a::after { display: none; }

      .two-col, .two-col.reverse, .benefits-wrap, .contact-card,
      .intro-section .two-col, .mission-section .two-col.reverse {
        grid-template-columns: 1fr !important;
        gap: 32px;
      }
      .contents-grid, .service-grid, .process-list, .project-grid,
      .values-grid, .advantage-grid {
        grid-template-columns: 1fr;
      }
      .timeline-grid { grid-template-columns: 1fr 1fr; }
      .timeline-grid div { clip-path: none; border-radius: 12px; min-height: 60px; }
      .policy-copy { padding: 32px 24px; }
      .contact-card { padding: 28px 20px; }
      .section { padding: 56px 0; }
      .hero { min-height: 86svh; }
      .cover-section { min-height: 40svh; }
    }

    @media (max-width: 520px) {
      .container { width: calc(100% - 20px); }
      .hero h1 { font-size: 48px; }
      .btn { width: 100%; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .process-list article { padding-left: 60px; }
      .process-list span { left: 14px; width: 34px; height: 34px; font-size: 15px; }
      .timeline-grid { grid-template-columns: 1fr; }
      .site-footer .container { flex-direction: column; gap: 8px; align-items: flex-start; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }