:root {
      --yellow: #FFCE22;
      --yellow-deep: #F5B800;
      --yellow-icon: #C9940A;
      --ink: #17181A;
      --ink-2: #3A3C40;
      --gray: #8A8D93;
      --line: #EFEEE8;
      --cream: #fff7d9;
      --cream-2: #FBF1CE;
      --radius: 20px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background: #fff;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul {
      list-style: none;
    }

    .nav-inner,
    .hero-inner,
    .features-card,
    .sec-head,
    .svc-grid,
    .app-grid,
    .steps,
    .footer-inner {
      max-width: 1200px;
      margin: 0 auto;
   
    }

    .nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 0, 0, .04);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      gap: 40px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      object-fit: cover;
    }

    .logo-text {
      line-height: 1.1;
    }

    .logo-text b {
      display: block;
      font-size: 19px;
      letter-spacing: 1px;
    }

    .logo-text span {
      display: block;
      font-size: 10px;
      color: var(--gray);
      letter-spacing: .5px;
      transform: scale(.9);
      transform-origin: left;
    }

    .nav-links {
      display: flex;
      gap: 34px;
      font-size: 14.5px;
      color: var(--ink-2);
      justify-content: center;
    }

    .nav-links a {
      position: relative;
      padding: 6px 0;
      transition: color .25s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--ink);
      font-weight: 600;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: none;
      cursor: pointer;
      font-family: inherit;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      transition: transform .2s, box-shadow .2s;
    }

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

    .btn-yellow {
      background: linear-gradient(180deg, #FFD64A, var(--yellow));
      color: var(--ink);
      box-shadow: 0 6px 16px rgba(245, 184, 0, .35);
    }

    .btn-nav {
      padding: 9px 22px;
      font-size: 14px;
    }

    .btn-dark {
      background: #1B1C1E;
      color: #fff;
      box-shadow: 0 10px 24px rgba(0, 0, 0, .22);
    }

    .hero {
      position: relative;
      min-height: 100vh;
      background: url("assets/hero.webp");
      background-size: cover;
      background-repeat: no-repeat;
      background-position: center;
      overflow: hidden;
    }


    .hero-inner {
      position: relative;
      z-index: 2;
      padding-top: 84px;
      padding-bottom: 150px;
    }

    .hero h1 {
      font-size: 56px;
      line-height: 1.22;
      font-weight: 800;
      letter-spacing: 2px;
    }

    .hero h2 {
      font-size: 27px;
      font-weight: 700;
      margin-top: 18px;
      letter-spacing: 1px;
    }

    .hero-sub {
      margin-top: 16px;
      font-size: 16px;
      color: var(--ink-2);
    }

    .hero-badges {
      display: flex;
      gap: 26px;
      margin-top: 30px;
      flex-wrap: wrap;
    }

    .badge {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14.5px;
      font-weight: 600;
    }

    .badge .dot {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .75);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--yellow-icon);
    }

    .badge .dot img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .hero-cta {
      display: flex;
      gap: 16px;
      margin-top: 38px;
    }

    .btn-hero {
      padding: 15px 34px;
      font-size: 16px;
    }

    .btn-ghost {
      background: rgba(255, 255, 255, .85);
      color: var(--ink);
      box-shadow: 0 4px 14px rgba(180, 150, 40, .15);
    }

    .btn-arrow {
      width: 16px;
      height: 16px;
      flex: none;
    }

    .btn-arrow-light {
      filter: brightness(0) invert(1);
    }

    .features {
      position: relative;
      z-index: 5;
      margin-top: -72px;
    }

    .features-card {
      background: #fff;
      border-radius: 24px;
      box-shadow: 0 18px 50px rgba(60, 50, 10, .10);
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      padding: 34px 10px;
    }

    .feature {
      text-align: center;
      padding: 6px 18px;
      border-right: 1px solid var(--line);
    }

    .feature:last-child {
      border-right: none;
    }

    .feature .tile {
      width: 80px;
      height: 80px;
      margin: 0 auto 12px;
    }

    .feature .tile img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .feature b {
      display: block;
      font-size: 15.5px;
      margin-bottom: 6px;
    }

    .feature p {
      font-size: 12.5px;
      color: var(--gray);
    }

    .section {
      padding: 88px 0;
    }

    .sec-head h2 {
      font-size: 32px;
      font-weight: 800;
      letter-spacing: 1px;
    }

    .sec-head p {
      margin-top: 12px;
      font-size: 15px;
      color: var(--gray);
    }

    .svc-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
      margin-top: 44px;
    }

    .svc-card {
      border: 1px solid var(--line);
      border-radius: 18px;
      overflow: hidden;
      background: #fff;
      transition: transform .25s, box-shadow .25s;
    }

    .svc-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 44px rgba(60, 50, 10, .12);
    }

    .svc-card img {
      width: 100%;
      object-fit: cover;
    }

    .svc-card-body {
      padding: 18px 18px 22px;
    }

    .svc-card-body b {
      display: block;
      font-size: 16.5px;
      margin-bottom: 8px;
    }

    .svc-card-body p {
      font-size: 13px;
      color: var(--gray);
      line-height: 1.6;
    }

    .app {
      background: #fff7d9;
      overflow: hidden;
    }

    .app .sec-head {
      text-align: center;
    }

    .app-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 60px;
      align-items: center;
      margin-top: 40px;
    }

    .app-visual img {
      width: 100%;
      margin: 0 auto;
      border-radius: 26px;  
    }

    .app-list {
      display: flex;
      flex-direction: column;
      gap: 46px;
    }

    .app-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .app-item .dot {
      flex: none;
      width: 68px;
      height: 68px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .app-item .dot img {
      width: 100%;
      height: 100%;
      border-radius: inherit;
      object-fit: contain;
    }

    .app-item b {
      display: block;
      font-size: 17px;
      margin-bottom: 6px;
    }

    .app-item p {
      font-size: 13.5px;
      color: #8d8474;
      line-height: 1.65;
    }

    .app-download {
      margin-top: 45px;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      margin-top: 56px;
      counter-reset: step;
    }

    .step {
      position: relative;
      text-align: center;
      padding: 0 8px;
    }

    .step:not(:first-child)::before {
      content: "";
      position: absolute;
      top: 21px;
      height: 26px;
      left: 0;
      width: 90px;
      margin-left: -45px;
      background: url("assets/svg/arrow-right.svg") center / 26px 26px no-repeat;
      filter: drop-shadow(0 2px 3px rgba(190, 135, 0, .38));
    }

    .step .num {
      position: relative;
      height: 76px;
      margin: 0 auto 12px;
      padding-bottom: 8px;
      background: url("assets/circle-decorate.webp") center / contain no-repeat;
      color: var(--yellow-icon);
      font-weight: 800;
      font-size: 17px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

  
    .step p {
      font-size: 12.5px;
      color: var(--gray);
      line-height: 1.65;
      margin-top: 1rem;
    }

    .pricing {
      background: var(--cream);
    }

    .pricing .sec-head {
      text-align: left;
    }

    .price-grid {
      max-width: 1200px;
      margin: 44px auto 0;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .price-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 30px 24px 26px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: transform .2s, box-shadow .2s;
    }

    .price-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(60, 50, 10, .08);
    }

    .price-card img {
      width: 96px;
      height: 96px;
      object-fit: contain;
    }

    .price-card b {
      display: block;
      font-size: 17px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 8px;
    }

    .price-card p {
      font-size: 13.5px;
      color: var(--gray);
      line-height: 1.6;
    }

    .price-cta {
      max-width: 1200px;
      margin: 40px auto 0;
      padding-right: 40px;
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .price-cta .btn {
      padding: 13px 34px;
      font-size: 15px;
    }

    .price-cta .note {
      font-size: 13px;
      color: var(--gray);
    }

    .guarantee {
      overflow: hidden;
      padding: 0;
    }

    .guarantee-inner {
      display: flex;
    }

    .guarantee-img {
      position: relative;
      overflow: hidden;
      flex: 0 0 35%;
    }

    .guarantee-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .guarantee-text {
      flex: 1 1 auto;
      align-self: center;
      max-width: 720px;
      padding: 88px 40px 88px 60px;
    }

    .guarantee-text h2 {
      font-size: 36px;
      font-weight: 800;
      letter-spacing: 1px;
      line-height: 1.3;
    }

    .guarantee-text .sub {
      margin-top: 14px;
      font-size: 16px;
      color: var(--gray);
      letter-spacing: 1px;
    }

    .guarantee-list {
      margin-top: 40px;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 17px;
      color: var(--ink-2);
    }

    .guarantee-item .ic {
      width: 28px;
      height: 28px;
      flex: none;
    }

    .guarantee-cta {
      margin-top: 42px;
    }

    .guarantee-cta .btn {
      padding: 15px 40px;
      font-size: 16px;
    }

    .cities {
      overflow: hidden;
    }

    .cities-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 88px 40px;
    }

    .cities-head {
      text-align: left;
    }

    .cities-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 50px;
      align-items: center;
      justify-content: space-between;
    }

    .city-map {
      position: relative;
      border-radius: 24px;
      padding: 26px;
      aspect-ratio: 4 / 3;
      overflow: hidden;
    }

    #chinaMap {
      width: 100%;
      height: 100%;
    }

    .city-features {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }

    .city-feature {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .city-feature .icon {
      flex: none;
      width: 74px;
      height: 74px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--yellow-icon);
    }

    .city-feature .icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .city-feature b {
      display: block;
      font-size: 17px;
      margin-bottom: 6px;
    }

    .city-feature p {
      font-size: 13.5px;
      color: var(--gray);
    }

    .city-cta {
      margin-top: 44px;
      display: flex;
      justify-content: center;
    }

    .city-cta .btn {
      padding: 13px 38px;
      font-size: 15px;
    }

    .faq {
      background: #fcfcfc;
    }

    .faq-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 88px 40px;
    }

    .faq-head {
      text-align: left;
    }

    .faq-grid {
      margin-top: 50px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 56px;
      align-items: stretch;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      overflow: hidden;
      transition: box-shadow .2s;
    }

    .faq-item[open] {
      box-shadow: 0 10px 26px rgba(60, 50, 10, .08);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 15.5px;
      font-weight: 600;
      color: var(--ink);
      user-select: none;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item .caret {
      flex: none;
      width: 20px;
      height: 20px;
      color: var(--yellow-icon);
      font-weight: 800;
      font-size: 20px;
      line-height: 1;
      transition: transform .2s;
    }

    .faq-item[open] .caret {
      transform: rotate(90deg);
    }

    .faq-item .q {
      flex: 1;
    }

    .faq-item .chev {
      flex: none;
      width: 20px;
      height: 20px;
      color: var(--gray);
      transition: transform .25s;
    }

    .faq-item[open] .chev {
      transform: rotate(180deg);
      color: var(--yellow-icon);
    }

    .faq-item .a {
      padding: 0 22px 20px 56px;
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.7;
    }

    .faq-aside {
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
    }

    .faq-img {
      width: 100%;
      max-width: 380px;
      border-radius: 20px;
    }

 
    .about-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 88px 40px;
    }

    .about-head {
      text-align: left;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1.05fr;
      gap: 56px;
      margin-top: 44px;
    }

    .about-img {
      position: relative;
      border-radius: 20px;
      overflow: hidden;
    }

    .about-img img {
      width: 100%;
      object-fit: contain;
    }

  

    .about-text h3 {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 18px;
      letter-spacing: .5px;
    }

    .about-text p {
      font-size: 14.5px;
      line-height: 1.9;
      color: var(--ink-2);
    }

    .about-text p + p {
      margin-top: 14px;
    }

    .about-text .btn {
      margin-top: 30px;
      padding: 13px 34px;
      font-size: 15px;
    }

    .contact {
      background: var(--cream-2);
      padding: 60px 0;
    }

    .contact-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 40px;
    }

    .contact-title {
      text-align: center;
      font-size: 24px;
      font-weight: 800;
      letter-spacing: 1.5px;
      margin-bottom: 44px;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      align-items: center;
    }

    .contact-item {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
    }

    .contact-item .icon {
      flex: none;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }

    .contact-item .icon img {
      width: 100%;
      height: 100%;
      border-radius: inherit;
      object-fit: contain;
    }

    .contact-item b {
      display: block;
      font-size: 16.5px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--ink);
    }

    .contact-item p {
      font-size: 13px;
      color: var(--gray);
      line-height: 1.6;
    }

    .footer {
      background: #17181A;
      color: #9a9ca1;
      padding: 56px 0 32px;
    }

    .footer-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 40px;
      text-align: center;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 26px;
    }

    .footer-brand img {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      object-fit: cover;
    }

    .footer-brand .logo-text {
      line-height: 1.1;
      text-align: left;
    }

    .footer-brand .logo-text b {
      color: #fff;
      display: block;
      font-size: 19px;
      letter-spacing: 1px;
    }

    .footer-brand .logo-text span {
      color: #77797e;
      display: block;
      font-size: 10px;
      letter-spacing: .5px;
      transform: scale(.9);
      transform-origin: left center;
    }

    .footer-nav {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      font-size: 14px;
      margin-bottom: 22px;
    }

    .footer-nav a {
      padding: 6px 18px;
      color: #c8cacf;
      transition: color .2s;
    }

    .footer-nav a:hover {
      color: var(--yellow);
    }

    .footer-nav .sep {
      color: #555;
      user-select: none;
      font-weight: 300;
    }

    .footer-meta {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      font-size: 13px;
      color: #88898e;
      margin-bottom: 24px;
    }

    .footer-meta a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 4px 14px;
      color: #c8cacf;
      transition: color .2s;
    }

    .footer-meta a:hover {
      color: var(--yellow);
    }

    .footer-meta .sep {
      color: #555;
      font-weight: 300;
      user-select: none;
    }

    .footer-meta .beian-icon {
      flex: none;
      height: 18px;
      width: auto;
    }

    .footer-copy {
      font-size: 13px;
      color: #77797e;
      letter-spacing: 1px;
    }

    .ic {
      width: 22px;
      height: 22px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    /* ===== 顾问微信二维码弹框 ===== */
    .qm-overlay {
      position: fixed;
      inset: 0;
      z-index: 999;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
      background: rgba(23, 24, 26, .55);
      -webkit-backdrop-filter: blur(6px);
      backdrop-filter: blur(6px);
      opacity: 0;
      visibility: hidden;
      transition: opacity .25s ease, visibility .25s ease;
    }

    .qm-overlay.is-open {
      opacity: 1;
      visibility: visible;
    }

    .qm-card {
      position: relative;
      width: 100%;
      max-width: 340px;
      max-height: 88vh;
      overflow-y: auto;
      padding: 30px 26px 26px;
      border-radius: 24px;
      background: #fff;
      text-align: center;
      box-shadow: 0 30px 70px rgba(0, 0, 0, .3);
      transform: translateY(18px) scale(.96);
      transition: transform .3s cubic-bezier(.2, .9, .3, 1.15);
    }

    .qm-overlay.is-open .qm-card {
      transform: translateY(0) scale(1);
    }

    .qm-close {
      position: absolute;
      top: 12px;
      right: 12px;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: none;
      border-radius: 50%;
      background: #F5F5F3;
      color: #6F7277;
      font-size: 20px;
      line-height: 1;
      cursor: pointer;
      transition: background .2s, color .2s, transform .2s;
    }

    .qm-close:hover {
      background: var(--yellow);
      color: var(--ink);
      transform: rotate(90deg);
    }

    .qm-title {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: .5px;
    }

    .qm-desc {
      margin: 8px 0;
      font-size: 13px;
      color: var(--gray);
      line-height: 1.7;
    }

    .qm-qr {
      width: 230px;
      max-width: 80%;
      margin: 0 auto;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 26px rgba(60, 50, 10, .14);
    }

    .qm-qr img {
      width: 100%;
      height: auto;
    }

    .dl-card {
      max-width: 380px;
    }

    .dl-list {
      display: flex;
      gap: 14px;
      margin-top: 18px;
    }

    .dl-item {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      padding: 18px 10px 16px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: #FFFDF6;
      color: var(--ink);
      transition: transform .2s, box-shadow .2s, border-color .2s;
    }

    .dl-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 26px rgba(60, 50, 10, .14);
    }

    .dl-icon {
      flex: none;
      width: 54px;
      height: 54px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .dl-icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .dl-name {
      font-size: 15px;
      font-weight: 700;
      letter-spacing: .3px;
    }

    .dl-status {
      font-size: 12.5px;
      color: var(--gray);
    }

    .dl-item.is-disabled {
      background: #F5F5F3;
      border-color: #EAEAE6;
      color: #A9ACB1;
      cursor: not-allowed;
    }

    .dl-item.is-disabled:hover {
      transform: none;
      border-color: #EAEAE6;
      box-shadow: none;
    }

    .dl-item.is-disabled .dl-icon {
      color: #C6C8CC;
      box-shadow: none;
    }

    .dl-item.is-disabled .dl-icon img {
      opacity: .45;
      filter: grayscale(100%);
    }

    .dl-item.is-disabled .dl-name,
    .dl-item.is-disabled .dl-status {
      color: #A9ACB1;
    }

    .dl-note {
      margin-top: 16px;
      font-size: 12.5px;
      line-height: 1.7;
      color: var(--gray);
    }

    body.qm-lock {
      overflow: hidden;
    }

    /* ---------- 移动端侧边导航：默认隐藏，≤1024px 启用 ---------- */
    .nav-toggle,
    .drawer-mask,
    .drawer {
      display: none;
    }

    body.drawer-lock {
      overflow: hidden;
    }

    /* ==========================================================================
       响应式：默认 PC → iPad（≤1024px）→ 手机（≤640px）
       ========================================================================== */

    /* ---------- 容器左右内边距（内容宽度仍为 1200px，PC 布局不变） ---------- */
    .nav-inner,
    .hero-inner,
    .section > .sec-head,
    .section > .svc-grid,
    .section > .app-grid,
    .section > .steps,
    .section > .price-grid,
    .section > .price-cta {
      max-width: 1280px;
      padding-left: 40px;
      padding-right: 40px;
    }

    .features-card {
      width: min(calc(100% - 80px), 1200px);
    }

    /* ---------- iPad ---------- */
    @media (max-width: 1024px) {

      /* 7 项主导航放不下，收起后由页脚导航兜底 */
      .nav-links {
        display: none;
      }

      .nav-inner {
        gap: 16px;
      }

      /* ---- 汉堡按钮 ---- */
      .nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        padding: 0 10px;
        border: none;
        border-radius: 12px;
        background: #F5F5F3;
        cursor: pointer;
      }

      .nav-toggle span {
        display: block;
        height: 2px;
        border-radius: 2px;
        background: var(--ink);
      }

      /* ---- 遮罩 ---- */
      .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 900;
        background: rgba(23, 24, 26, .45);
        opacity: 0;
        visibility: hidden;
        transition: opacity .28s ease, visibility .28s ease;
      }

      .drawer-mask.is-open {
        opacity: 1;
        visibility: visible;
      }

      /* ---- 侧边栏 ---- */
      .drawer {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 901;
        width: 76%;
        max-width: 300px;
        padding: 20px 22px 26px;
        background: #fff;
        box-shadow: -14px 0 44px rgba(0, 0, 0, .18);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform .32s cubic-bezier(.25, .8, .3, 1), visibility .32s;
      }

      .drawer.is-open {
        transform: translateX(0);
        visibility: visible;
      }

      .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 14px;
      }

      .drawer-head b {
        font-size: 16px;
        letter-spacing: 1px;
      }

      .drawer-close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        border: none;
        border-radius: 50%;
        background: #F5F5F3;
        color: #6F7277;
        font-size: 19px;
        line-height: 1;
        cursor: pointer;
      }

      /* ---- 面包屑：当前所在位置 ---- */
      .drawer-crumb {
        display: flex;
        align-items: center;
        gap: 6px;
        padding-bottom: 14px;
        border-bottom: 1px solid var(--line);
        font-size: 12.5px;
        color: var(--gray);
      }

      .drawer-crumb a {
        color: var(--ink-2);
      }

      .drawer-crumb .sep {
        color: #C9C9C4;
      }

      .drawer-crumb .cur {
        color: var(--yellow-icon);
        font-weight: 700;
      }

      /* ---- 导航列表 ---- */
      .drawer-nav {
        flex: 1 1 auto;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
      }

      .drawer-nav a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 2px;
        border-bottom: 1px solid var(--line);
        font-size: 15px;
        color: var(--ink-2);
      }

      .drawer-nav a::after {
        content: "\203A";
        font-size: 18px;
        line-height: 1;
        color: #C9C9C4;
      }

      .drawer-nav a.active {
        color: var(--ink);
        font-weight: 700;
      }

      .drawer-nav a.active::after {
        color: var(--yellow-icon);
      }

      .drawer-cta {
        width: 100%;
        margin-top: 20px;
        padding: 13px 20px;
        font-size: 15px;
      }

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

     

      .steps {
        grid-template-columns: repeat(4, 1fr);
        row-gap: 36px;
      }

      .step:not(:first-child)::before {
        display: none;
      }

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

      html {
        -webkit-text-size-adjust: 100%;
      }

      .hero {
        min-height: 38vh;
      }

      .hero-inner {
        padding-top: 48px;
        padding-bottom: 116px;
      }

      .hero h1 {
        font-size: 38px;
        letter-spacing: 1px;
      }

      .hero h2 {
        font-size: 21px;
        margin-top: 14px;
      }

      .features {
        margin-top: -60px;
      }

      .features-card {
        grid-template-columns: repeat(3, 1fr);
        row-gap: 24px;
        padding: 28px 8px;
      }

      .feature {
        padding: 4px 10px;
      }

      .feature:nth-child(3n) {
        border-right: none;
      }

      .feature .tile {
        width: 68px;
        height: 68px;
      }

      .section {
        padding: 60px 0;
      }

      .cities-inner,
      .faq-inner,
      .about-inner {
        padding-top: 60px;
        padding-bottom: 60px;
      }

      .sec-head h2 {
        font-size: 25px;
      }

      .app-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .app-list {
        gap: 26px;
      }

      .app-item .dot {
        width: 54px;
        height: 54px;
      }

      .app-download {
        margin-top: 32px;
      }

      .guarantee-inner {
        flex-direction: column;
      }

      .guarantee-img {
        flex: none;
      }

      .guarantee-img img {
        height: 260px;
      }

      .guarantee-text {
        max-width: none;
        padding: 48px 24px 56px;
      }

      .guarantee-text h2 {
        font-size: 27px;
      }

      .cities-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .city-map {
        padding: 12px;
      }

      .city-feature .icon {
        width: 58px;
        height: 58px;
      }

      .city-cta {
        margin-top: 32px;
      }

      .faq-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .about-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .contact {
        padding: 48px 0;
      }

      .contact-grid {
        grid-template-columns: 1fr;
        gap: 22px;
      }

      .contact-item {
        justify-content: flex-start;
      }

      .contact-title {
        font-size: 21px;
        margin-bottom: 30px;
      }

      .footer-nav a {
        padding: 6px 12px;
      }
    }

    /* ---------- 手机 ---------- */
    @media (max-width: 640px) {

      .nav-inner,
      .hero-inner,
      .cities-inner,
      .faq-inner,
      .about-inner,
      .contact-inner,
      .footer-inner,
      .section > .sec-head,
      .section > .svc-grid,
      .section > .app-grid,
      .section > .steps,
      .section > .price-grid,
      .section > .price-cta {
        padding-left: 18px;
        padding-right: 18px;
      }

      .features-card {
        width: calc(100% - 36px);
        grid-template-columns: repeat(2, 1fr);
        row-gap: 20px;
        padding: 24px 6px;
      }

      .feature {
        border-right: none;
      }

      .feature:last-child {
        grid-column: 1 / -1;
      }

      .nav-inner {
        height: 56px;
      }

      .logo-mark {
        width: 32px;
        height: 32px;
        border-radius: 10px;
      }

      .logo-text b {
        font-size: 16px;
      }

      .logo-text span {
        font-size: 9px;
      }

      .btn-nav {
        padding: 8px 16px;
        font-size: 13px;
      }

      .hero h1 {
        font-size: 31px;
      }

      .hero h2 {
        font-size: 18px;
        letter-spacing: .5px;
      }

      .hero-sub {
        font-size: 13.5px;
        margin-top: 10px;
      }

      .hero-badges {
        gap: 10px 16px;
        margin-top: 20px;
      }

      .badge {
        font-size: 12.5px;
      }

      .badge .dot {
        width: 24px;
        height: 24px;
      }

      .hero-cta {
        flex-direction: column;
        gap: 12px;
        margin-top: 26px;
      }

      .btn-hero {
        width: 100%;
        padding: 13px 20px;
        font-size: 15px;
      }

      .feature b {
        font-size: 14px;
      }

      .feature p {
        font-size: 11.5px;
      }

      .sec-head h2 {
        font-size: 22px;
      }

      .sec-head p {
        font-size: 13.5px;
        margin-top: 10px;
      }
        .svc-card img{
            height: 280px;
        }
      .svc-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 30px;
      }


      .steps {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 30px;
        margin-top: 36px;
      }

      .step .num {
        height: 62px;
        font-size: 16px;
      }

      .step p {
        font-size: 12px;
      }

      .price-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 30px;
      }

      .price-card {
        padding: 22px 18px;
      }

      .price-card img {
        width: 64px;
        height: 64px;
      }

      .price-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        margin-top: 28px;
      }

      .price-cta .btn {
        width: 100%;
      }

      .price-cta .note {
        text-align: center;
      }

      .city-cta .btn {
        width: 100%;
      }

      .city-feature {
        gap: 14px;
      }

      .city-feature b {
        font-size: 15.5px;
      }

      .guarantee-img img {
        height: 210px;
      }

      .guarantee-text {
        padding: 36px 18px 44px;
      }

      .guarantee-text h2 {
        font-size: 23px;
      }

      .guarantee-text .sub {
        font-size: 14px;
      }

      .guarantee-list {
        margin-top: 28px;
        gap: 16px;
      }

      .guarantee-item {
        font-size: 14.5px;
        gap: 12px;
        align-items: flex-start;
      }

      .guarantee-item .ic {
        width: 22px;
        height: 22px;
      }

      .guarantee-cta {
        margin-top: 30px;
      }

      .guarantee-cta .btn {
        width: 100%;
        padding: 13px 20px;
        font-size: 15px;
      }

      .faq-list {
        gap: 12px;
      }

      .faq-item summary {
        padding: 15px 16px;
        gap: 10px;
        font-size: 14.5px;
      }

      .faq-item .a {
        padding: 0 16px 16px 46px;
        font-size: 13.5px;
      }

      .faq-img {
        max-width: 100%;
      }

      .about-text h3 {
        font-size: 17px;
      }

      .about-text p {
        font-size: 14px;
        line-height: 1.85;
      }

      .about-text p + p {
        margin-top: 12px;
      }

      .about-text .btn {
        width: 100%;
      }

      .contact-title {
        font-size: 19px;
        letter-spacing: .5px;
      }

      .contact-item .icon {
        width: 50px;
        height: 50px;
      }

      .footer {
        padding: 40px 0 26px;
      }

      .footer-nav {
        margin-bottom: 16px;
      }

      .footer-nav a {
        padding: 6px 10px;
        font-size: 13px;
      }

      .footer-nav .sep,
      .footer-meta .sep {
        display: none;
      }

      .footer-meta {
        flex-direction: column;
        gap: 8px;
        margin-bottom: 20px;
      }

      .footer-copy {
        font-size: 12px;
        letter-spacing: .5px;
      }

      .qm-overlay {
        padding: 16px;
      }

      .dl-list {
        gap: 10px;
      }

      .dl-item {
        padding: 14px 6px 12px;
        border-radius: 14px;
      }

      .dl-icon {
        width: 46px;
        height: 46px;
        border-radius: 13px;
      }

      .dl-name {
        font-size: 14px;
      }

      .dl-status {
        font-size: 12px;
      }
.badge .dot img{
    border-radius: 999px;
}
    
   
    }