:root {
      --bg: #fff8f8;
      --bg-soft: #fff0f1;
      --card: #ffffff;
      --card-tint: #fff6f6;
      --text: #2b1b1f;
      --muted: #735d63;
      --primary: #c5163d;
      --primary-dark: #97112f;
      --accent: #ff6b82;
      --line: rgba(197, 22, 61, 0.16);
      --shadow: 0 18px 46px rgba(151, 17, 47, 0.12);
      --radius-xl: 28px;
      --radius-lg: 20px;
      --radius-md: 14px;
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(255, 107, 130, 0.22), transparent 28%),
        radial-gradient(circle at 90% 18%, rgba(197, 22, 61, 0.12), transparent 30%),
        linear-gradient(180deg, #fff8f8 0%, #fff3f3 45%, #fffaf7 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

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

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

    .topbar {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255, 248, 248, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      color: var(--primary-dark);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: linear-gradient(135deg, #d91d46, #8d0d2c);
      box-shadow: 0 12px 28px rgba(197, 22, 61, 0.26);
      font-size: 22px;
      line-height: 1;
    }

    .brand-name {
      font-size: 17px;
      letter-spacing: 0.02em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
    }

    .nav-links a {
      padding: 10px 12px;
      border-radius: 999px;
      color: #4c3239;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover {
      background: #ffe4e8;
      color: var(--primary-dark);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 10px 18px;
      border-radius: 999px;
      background: var(--primary);
      color: #ffffff;
      font-weight: 700;
      box-shadow: 0 12px 26px rgba(197, 22, 61, 0.22);
    }

    .menu-toggle {
      display: none;
      border: 0;
      background: #ffe4e8;
      color: var(--primary-dark);
      border-radius: 12px;
      padding: 10px 12px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
    }

    main {
      padding-bottom: 0;
    }

    .hero {
      padding: 54px 0 34px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(300px, 0.96fr);
      gap: 28px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.72);
      color: var(--primary-dark);
      font-weight: 700;
      font-size: 13px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 6px rgba(255, 107, 130, 0.14);
    }

    h1 {
      margin: 18px 0 14px;
      font-size: clamp(32px, 5.4vw, 56px);
      line-height: 1.08;
      letter-spacing: -0.04em;
      color: #241216;
    }

    .hero-desc {
      margin: 0;
      max-width: 680px;
      color: var(--muted);
      font-size: clamp(16px, 2.2vw, 19px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 800;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn-primary {
      background: linear-gradient(135deg, #c5163d, #ec4968);
      color: #ffffff;
      box-shadow: 0 16px 34px rgba(197, 22, 61, 0.26);
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--primary-dark);
      border: 1px solid var(--line);
    }

    .hero-note {
      margin-top: 18px;
      color: #80666c;
      font-size: 14px;
    }

    .phone-showcase {
      position: relative;
      padding: 16px;
      border-radius: 34px;
      background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,228,232,0.72));
      border: 1px solid rgba(197, 22, 61, 0.16);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatIn 0.7s ease both;
    }

    .phone-showcase::before {
      content: "";
      position: absolute;
      inset: auto -18% -22% 28%;
      height: 160px;
      background: radial-gradient(circle, rgba(197, 22, 61, 0.22), transparent 62%);
      pointer-events: none;
    }

    .showcase-main {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      background: #fff;
      aspect-ratio: 4 / 3;
      border: 1px solid rgba(197, 22, 61, 0.12);
    }

    .showcase-main img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      padding: 10px;
      background: #fff7f7;
    }

    .status-strip {
      position: relative;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 12px;
    }

    .status-item {
      border-radius: 16px;
      padding: 12px;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid rgba(197, 22, 61, 0.12);
    }

    .status-item strong {
      display: block;
      color: var(--primary-dark);
      font-size: 15px;
    }

    .status-item span {
      display: block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
      margin-top: 2px;
    }

    .section {
      padding: 36px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 20px;
    }

    .section-kicker {
      margin: 0 0 6px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 800;
    }

    h2 {
      margin: 0;
      font-size: clamp(24px, 3.4vw, 36px);
      line-height: 1.22;
      letter-spacing: -0.02em;
    }

    .section-sub {
      margin: 0;
      max-width: 520px;
      color: var(--muted);
      font-size: 15px;
    }

    .panel {
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.76);
      border-radius: var(--radius-xl);
      box-shadow: 0 14px 38px rgba(151, 17, 47, 0.08);
    }

    .diagnosis {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
      gap: 18px;
      padding: 20px;
    }

    .diagnosis-lead {
      padding: 22px;
      border-radius: 22px;
      background: linear-gradient(145deg, #fff2f3, #ffffff);
      border: 1px solid rgba(197, 22, 61, 0.12);
    }

    .diagnosis-lead h3,
    .service-card h3,
    .solution-step h3,
    .assure-card h3,
    .contact-card h3 {
      margin: 0 0 8px;
      font-size: 19px;
      color: #2b151b;
    }

    .diagnosis-lead p,
    .service-card p,
    .solution-step p,
    .assure-card p,
    .contact-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .check-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 13px 14px;
      border-radius: 16px;
      background: #ffffff;
      border: 1px solid rgba(197, 22, 61, 0.12);
      color: #4c3239;
    }

    .check-list li::before {
      content: "●";
      color: var(--primary);
      font-size: 13px;
      line-height: 1.8;
      flex: 0 0 auto;
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .service-card {
      padding: 20px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.84);
      border: 1px solid var(--line);
      box-shadow: 0 10px 26px rgba(151, 17, 47, 0.06);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(197, 22, 61, 0.32);
      box-shadow: 0 18px 40px rgba(151, 17, 47, 0.12);
    }

    .service-icon {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: 14px;
      background: #ffe2e7;
      color: var(--primary-dark);
      font-weight: 900;
    }

    .solution-wrap {
      display: grid;
      grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
      gap: 18px;
      align-items: stretch;
    }

    .image-stack {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      padding: 14px;
    }

    .image-card {
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--line);
      background: #ffffff;
    }

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

    .image-card img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: contain;
      background: #fff4f5;
      padding: 8px;
    }

    .solution-steps {
      display: grid;
      gap: 12px;
    }

    .solution-step {
      padding: 18px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid var(--line);
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 14px;
      align-items: start;
    }

    .step-num {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 900;
      line-height: 1;
      box-shadow: 0 10px 20px rgba(197, 22, 61, 0.2);
    }

    .assure-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }

    .assure-card {
      padding: 20px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, #ffffff, #fff6f6);
      border: 1px solid var(--line);
    }

    .assure-card ul {
      margin: 12px 0 0;
      padding-left: 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .contact-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
      gap: 18px;
      align-items: stretch;
    }

    .contact-card {
      padding: 22px;
    }

    .contact-list {
      display: grid;
      gap: 12px;
      margin-top: 16px;
    }

    .contact-row {
      display: grid;
      grid-template-columns: 88px 1fr;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed rgba(197, 22, 61, 0.2);
    }

    .contact-row:last-child {
      border-bottom: 0;
    }

    .contact-row span {
      color: var(--muted);
    }

    .contact-row strong,
    .contact-row a {
      color: #2b151b;
      font-weight: 800;
      word-break: break-word;
    }

    .qr-box {
      display: grid;
      gap: 14px;
      padding: 22px;
      text-align: center;
      align-content: center;
      background: linear-gradient(145deg, #fff, #ffecef);
    }

    .qr-image {
      width: min(220px, 74vw);
      margin: 0 auto;
      border-radius: 18px;
      background: #ffffff;
      padding: 10px;
      border: 1px solid var(--line);
      box-shadow: 0 12px 28px rgba(151, 17, 47, 0.08);
    }

    .map-link {
      color: #0066cc;
      text-decoration: none;
      font-weight: 800;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--line);
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.82);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 56px;
      border: 0;
      background: transparent;
      color: #2b151b;
      padding: 16px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      font-size: 16px;
      font-weight: 800;
      text-align: left;
      cursor: pointer;
    }

    .faq-question span {
      flex: 1;
    }

    .faq-question em {
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: #ffe2e7;
      color: var(--primary-dark);
      font-style: normal;
      flex: 0 0 auto;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .faq-item.active .faq-question em {
      transform: rotate(45deg);
    }

    .links-panel {
      padding: 20px;
    }

    .resource-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .resource-links a {
      padding: 9px 12px;
      border-radius: 999px;
      background: #ffffff;
      border: 1px solid var(--line);
      color: #52363d;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .resource-links a:hover {
      background: #ffe2e7;
      color: var(--primary-dark);
    }

    .final-cta {
      padding: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      background: linear-gradient(135deg, #b91238, #e63f61);
      color: #ffffff;
      border-radius: var(--radius-xl);
      box-shadow: 0 18px 42px rgba(151, 17, 47, 0.18);
    }

    .final-cta h2 {
      color: #ffffff;
      font-size: clamp(22px, 3vw, 32px);
    }

    .final-cta p {
      margin: 8px 0 0;
      color: rgba(255, 255, 255, 0.88);
    }

    .final-cta .btn {
      background: #ffffff;
      color: var(--primary-dark);
      box-shadow: none;
      flex: 0 0 auto;
    }

    .footer {
      margin-top: 34px;
      padding: 24px 0;
      background: #fff0f1;
      border-top: 1px solid var(--line);
      color: #4c3239;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      font-size: 14px;
    }

    .footer a {
      color: var(--primary-dark);
      font-weight: 800;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    @keyframes floatIn {
      from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
      }
      to {
        opacity: 1;
        transform: translateY(0) scale(1);
      }
    }

    @media (max-width: 980px) {
      .nav {
        min-height: 66px;
      }

      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 20px;
        background: #ffffff;
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a,
      .nav-cta {
        justify-content: center;
        text-align: center;
        width: 100%;
      }

      .hero-grid,
      .diagnosis,
      .solution-wrap,
      .contact-layout {
        grid-template-columns: 1fr;
      }

      .service-grid,
      .assure-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero {
        padding: 34px 0 24px;
      }

      .section {
        padding: 28px 0;
      }

      .hero-actions,
      .final-cta {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .status-strip,
      .service-grid,
      .assure-grid,
      .image-stack {
        grid-template-columns: 1fr;
      }

      .image-card:first-child {
        grid-column: auto;
      }

      .solution-step {
        grid-template-columns: 1fr;
      }

      .contact-row {
        grid-template-columns: 1fr;
        gap: 2px;
      }

      .footer-inner {
        flex-direction: column;
        align-items: flex-start;
      }
    }