body { font-family: var(--site-font-family); margin: 0; color: #3a3a3a; background: #ffffff; }
      body::before {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 64px;
        background: #ffffff;
        border-bottom: 1px solid rgba(221, 227, 234, 0.78);
        z-index: 10010;
        pointer-events: none;
      }
      .page-shell { max-width: calc(1040px + 48px); margin: 0 auto; padding: 93px 24px; box-sizing: border-box; }
      main { padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
      h1 { font-size: 40px; margin: 0 0 16px; color: #3a3a3a; font-weight: 700; line-height: 1.25; }
      h2 { font-size: 24px; margin: 32px 0 8px; color: #3a3a3a; font-weight: 700; line-height: 1.45; }
      h3 { font-size: 18px; margin: 22px 0 8px; color: #3a3a3a; font-weight: 700; line-height: 1.5; }
      p { color: #3a3a3a; line-height: 1.8; margin: 0 0 12px; }
      ul { padding-left: 20px; line-height: 2; margin: 0 0 12px; color: #3a3a3a; }
      li { margin: 4px 0; color: #3a3a3a; }
      a { color: #3a3a3a; text-decoration: none; }
      a:hover { color: #3a3a3a; text-decoration: none; }
      .sitemap-logo {
        position: fixed;
        top: 4.5px;
        left: max(20px, calc((100vw - 1200px) / 2));
        width: 95px;
        height: 55px;
        background: url("../../images/logo-red.png?v=20260704logo1") center / contain no-repeat;
        z-index: 10020;
      }
      .legal-meta { color: #3a3a3a !important; margin: 0 0 24px; }
      .legal-notice { color: #3a3a3a; margin: 0 0 12px; }
      @media (max-width: 1024px) {
        body::before {
          height: 74px;
        }
        .sitemap-logo {
          top: 14px;
          left: 16px;
          width: 84px;
          height: 48px;
        }
      }
      @media (max-width: 1024px) {
        .page-shell { padding: 93px 16px; }
        main { padding: 0; }
      }
      @media (max-width: 640px) {
        h1 { font-size: 34px; }
        h2 { font-size: 24px; }
      }

:root {
        --site-font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
        --site-font-family-display: var(--site-font-family);
        --site-font-family-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
        --site-font-family-icon: "element-icons";
        --site-color-brand: #d71c20;
        --site-color-heading: #3a3a3a;
        --site-color-text: #3a3a3a;
        --site-color-muted: #3a3a3a;
  --site-color-subtle: #3a3a3a;
        --site-color-white: #ffffff;
        --site-weight-heading: 600;
        --site-weight-button: 600;
        --site-desktop-body-size: 16px;
        --site-desktop-button-size: 14px;
        --site-desktop-body-line: 1.6;
        --site-desktop-section-title-size: 34px;
        --site-desktop-section-title-line: 1.22;
        --site-mobile-hero-size: 34px;
      }

      .seo-h1 {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
      }

:root {
  --site-color-brand: #d71c20;
  --site-color-heading: #3a3a3a;
  --site-color-text: #3a3a3a;
  --site-color-muted: #3a3a3a;
  --site-color-subtle: #3a3a3a;
  --site-color-white: #ffffff;
  --site-weight-heading: 600;
  --site-weight-button: 600;
  --site-desktop-body-size: 16px;
  --site-desktop-button-size: 14px;
  --site-mobile-hero-size: 34px;
  --site-desktop-body-line: 1.6;
  --site-desktop-section-title-line: 1.22;
}

:root {
  --site-color-brand: #d71c20;
  --site-color-heading: #3a3a3a;
  --site-color-text: #3a3a3a;
  --site-color-muted: #3a3a3a;
  --site-color-subtle: #3a3a3a;
  --site-color-white: #ffffff;
  --site-weight-heading: 600;
  --site-weight-button: 600;
  --site-desktop-body-size: 16px;
  --site-desktop-button-size: 14px;
  --site-mobile-hero-size: 34px;
  --site-desktop-body-line: 1.6;
  --site-desktop-section-title-line: 1.22;
}

.layout-tips {
  position: fixed;
  right: 0;
  top: auto;
  bottom: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
  visibility: hidden;
  opacity: 0;
}

.layout-tips.is-ready {
  visibility: visible;
  opacity: 1;
}

body.site-ai-open .layout-tips {
  right: calc(min(820px, 48vw) + 16px);
}

.layout-tips .layout-tips-btn {
  width: 50px;
  height: 50px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  overflow: visible;
}

.layout-tips .layout-tips-btn img {
  width: 50px;
  height: 50px;
  display: block;
  object-fit: contain;
}

.layout-tips .layout-tips-btn:hover {
  transform: none;
}

.layout-tips .layout-tips-top {
  width: 50px;
  height: 50px;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  margin-bottom: 0;
}

.layout-tips .layout-tips-top img {
  width: 50px;
  height: 50px;
  display: block;
  object-fit: contain;
}

.site-contact-card {
  position: fixed;
  right: 84px;
  bottom: 92px;
  width: 286px;
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: var(--site-color-white);
  box-shadow: 0 20px 48px rgba(215, 28, 32, 0.34);
  z-index: 1001;
  display: none;
}

.site-contact-card.is-open {
  display: block;
}

.site-contact-card__eyebrow {
  font-size: 12px;
  color: #3a3a3a;
  margin-bottom: 8px;
}

.site-contact-card__title {
  font-size: 18px;
  font-weight: var(--site-weight-heading);
  color: #3a3a3a;
  margin-bottom: 6px;
}

.site-contact-card__number {
  font-size: 24px;
  font-weight: var(--site-weight-heading);
  color: #3a3a3a;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.site-contact-card__desc {
  font-size: 14px;
  line-height: var(--site-desktop-body-line);
  color: #3a3a3a;
  margin-bottom: 14px;
}

.site-contact-card__actions {
  display: flex;
  gap: 10px;
}

.site-contact-card__action {
  flex: 1;
  border-radius: 12px;
  border: 1px solid var(--site-color-brand);
  background: var(--site-color-brand);
  color: var(--site-color-white);
  font-size: 14px;
  font-weight: var(--site-weight-button);
  padding: 10px 12px;
  cursor: pointer;
}

.site-contact-card__action--primary {
  background: var(--site-color-brand);
  color: var(--site-color-white);
  border-color: transparent;
}

.site-contact-card__action--wechat {
  background: #10b981;
  color: var(--site-color-white);
  border-color: #10b981;
}

.site-ai-drawer {
  --site-ai-font-family: var(--site-font-family);
  --site-ai-color-heading: var(--site-color-heading, #181818);
  --site-ai-color-text: var(--site-color-text, #3a3a3a);
  --site-ai-color-muted: var(--site-color-muted, #666666);
  --site-ai-color-white: var(--site-color-white, #ffffff);
  --site-ai-body-size: var(--site-desktop-body-size, 16px);
  --site-ai-body-line: var(--site-desktop-body-line, 1.6);
  --site-ai-hero-size: var(--site-desktop-section-title-size, 34px);
  --site-ai-hero-line: var(--site-desktop-section-title-line, 1.22);
  --site-ai-button-size: var(--site-desktop-button-size, 14px);
  --site-ai-weight-heading: var(--site-weight-heading, 600);
  --site-ai-weight-button: var(--site-weight-button, 600);
  position: fixed;
  top: 0;
  right: 0;
  width: min(820px, 48vw);
  min-width: 520px;
  height: 100vh;
  background: var(--site-color-white);
  box-shadow: -10px 0 36px rgba(215, 28, 32, 0.34);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 100000;
  display: none;
  flex-direction: column;
  font-family: var(--site-ai-font-family);
  font-size: var(--site-ai-body-size);
  line-height: var(--site-ai-body-line);
  color: #3a3a3a;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.site-ai-drawer button,
.site-ai-drawer input,
.site-ai-drawer textarea {
  font: inherit;
}

.site-ai-drawer.is-open {
  display: flex;
  transform: translateX(0);
}

.site-ai-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.32);
  z-index: 99999;
  display: none;
}

.site-ai-overlay.is-open {
  display: block;
}

.site-ai-header {
  padding: 28px 32px 22px;
  border-bottom: 1px solid #eceff3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-ai-title {
  font-size: 24px;
  font-weight: var(--site-ai-weight-heading);
  color: #3a3a3a;
  margin-bottom: 4px;
  text-align: center;
}

.site-ai-subtitle {
  font-size: 14px;
  color: #3a3a3a;
  line-height: 1.5;
  text-align: center;
}

.site-ai-close {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #3a3a3a;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.site-ai-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px 20px;
  background: var(--site-color-white);
}

.site-ai-welcome {
  border-radius: 24px;
  padding: 34px 24px 28px;
  background: var(--site-color-white);
  box-shadow: 0 8px 30px rgba(215, 28, 32, 0.34);
  margin-top: auto;
  margin-bottom: 24px;
  border: 1px solid #f3f5f8;
}

.site-ai-welcome h3 {
  margin: 0 0 10px;
  font-size: var(--site-ai-hero-size);
  font-weight: var(--site-ai-weight-heading);
  line-height: var(--site-ai-hero-line);
  color: #3a3a3a;
  text-align: center;
}

.site-ai-welcome p {
  margin: 0;
  font-size: var(--site-ai-body-size);
  line-height: var(--site-ai-body-line);
  color: #3a3a3a;
  text-align: center;
}

.site-ai-suggestions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.site-ai-suggestion {
  border: 1px solid #eceff3;
  background: #f7f7f7;
  color: #3a3a3a;
  font-size: var(--site-ai-body-size);
  text-align: center;
  border-radius: 14px;
  padding: 14px 16px;
  cursor: pointer;
}

.site-ai-messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 240px;
}

.site-ai-message {
  max-width: 88%;
  padding: 14px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: var(--site-ai-body-line);
  white-space: pre-wrap;
  word-break: break-word;
}

.site-ai-message--assistant {
  align-self: flex-start;
  background: #f7f7f7;
  color: #3a3a3a;
}

.site-ai-message--user {
  align-self: flex-end;
  background: var(--site-color-brand);
  color: #3a3a3a;
}

.site-ai-sources {
  align-self: flex-start;
  max-width: 88%;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-left: 2px;
}

.site-ai-sources__title {
  width: 100%;
  font-size: 12px;
  color: #3a3a3a;
}

.site-ai-source {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #d71c20;
  color: #3a3a3a;
  font-size: 12px;
  text-decoration: none;
  border: 1px solid rgba(215, 28, 32, 0.16);
}

.site-ai-error {
  margin-top: 12px;
  font-size: 14px;
  color: #3a3a3a;
  display: none;
}

.site-ai-error.is-open {
  display: block;
}

.site-ai-actions {
  display: flex;
  gap: 10px;
  padding: 0 24px 14px;
  background: var(--site-color-white);
}

.site-ai-action {
  flex: 1;
  height: 38px;
  border: 1px solid rgba(215, 28, 32, 0.18);
  border-radius: 999px;
  background: #d71c20;
  color: #3a3a3a;
  font-size: var(--site-ai-button-size);
  font-weight: var(--site-ai-weight-button);
  white-space: nowrap;
  cursor: pointer;
}

.site-ai-lead-form {
  display: none;
  margin: 0 24px 16px;
  padding: 16px;
  border: 1px solid #eceff3;
  border-radius: 16px;
  background: #ffffff;
}

.site-ai-lead-form.is-open {
  display: block;
}

.site-ai-lead-title {
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: var(--site-ai-weight-heading);
  color: #3a3a3a;
}

.site-ai-lead-name,
.site-ai-lead-phone,
.site-ai-lead-demand {
  width: 100%;
  border: 1px solid #dfe5ee;
  border-radius: 12px;
  background: var(--site-ai-color-white);
  color: #3a3a3a;
  font-size: 14px;
  padding: 10px 12px;
  margin-bottom: 10px;
  outline: none;
  box-sizing: border-box;
}

.site-ai-lead-demand {
  min-height: 70px;
  resize: none;
}

.site-ai-lead-actions {
  display: flex;
  gap: 10px;
}

.site-ai-lead-submit,
.site-ai-lead-cancel {
  flex: 1;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--site-color-brand);
  font-size: 14px;
  cursor: pointer;
}

.site-ai-lead-submit {
  background: var(--site-color-brand);
  color: #3a3a3a;
}

.site-ai-lead-cancel {
  background: var(--site-ai-color-white);
  color: #3a3a3a;
}

.site-ai-footer {
  border-top: 1px solid #eceff3;
  padding: 18px 24px 22px;
  background: var(--site-color-white);
}

.site-ai-form {
  display: block;
  position: relative;
  height: 52px;
}

.site-ai-input {
  width: 100%;
  min-height: 52px;
  height: 52px;
  max-height: 52px;
  resize: none;
  border-radius: 28px;
  border: 1px solid var(--site-color-muted);
  background: var(--site-ai-color-white);
  padding: 14px 116px 14px 18px;
  font-size: var(--site-ai-body-size);
  line-height: 22px;
  color: #3a3a3a;
  outline: none;
  box-sizing: border-box;
  overflow: hidden;
}

.site-ai-input:focus {
  border-color: var(--site-color-text);
  background: var(--site-ai-color-white);
}

.site-ai-submit {
  position: absolute;
  right: 8px;
  top: 50%;
  bottom: auto;
  transform: translateY(-50%);
  min-width: 94px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: var(--site-color-brand);
  color: #3a3a3a;
  font-size: var(--site-ai-button-size);
  font-weight: var(--site-ai-weight-button);
  padding: 0 20px;
  line-height: 38px;
  cursor: pointer;
  box-sizing: border-box;
}

.site-ai-submit:disabled,
.site-contact-card__action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 1080px) {
  body.site-ai-open .layout-tips {
    right: 16px;
  }

  .site-ai-drawer {
    width: 100vw;
    min-width: 0;
  }

  .site-ai-welcome h3 {
    font-size: var(--site-mobile-hero-size, 34px);
  }

  .site-ai-suggestions {
    grid-template-columns: 1fr;
  }
}

:root {
  --site-font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --site-font-family-display: var(--site-font-family);
  --site-font-family-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --site-color-brand: #d71c20;
  --site-color-heading: #3a3a3a;
  --site-color-text: #3a3a3a;
  --site-color-muted: #3a3a3a;
  --site-color-subtle: #3a3a3a;
  --site-color-white: #ffffff;
  --site-color-surface: #ffffff;
  --site-color-surface-soft: #f7f9fc;
  --site-color-surface-muted: #f3f6fa;
  --site-desktop-title-size: 40px;
  --site-desktop-title-line: 1.2;
  --site-desktop-section-title-size: 34px;
  --site-desktop-section-title-line: 1.24;
  --site-desktop-card-title-size: 24px;
  --site-desktop-card-title-line: 1.34;
  --site-desktop-small-title-size: 21px;
  --site-desktop-small-title-line: 1.38;
  --site-desktop-body-size: 16px;
  --site-desktop-body-strong-size: 17px;
  --site-desktop-body-line: 1.68;
  --site-desktop-small-size: 14px;
  --site-desktop-small-line: 1.58;
  --site-desktop-button-size: 14px;
  --site-weight-heading: 600;
  --site-weight-button: 600;
  --site-weight-body-strong: 500;
}

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

html,
body,
#app,
button,
input,
textarea,
select,
option,
label,
a,
span,
li,
dt,
dd,
small,
strong,
b {
  font-family: var(--site-font-family) !important;
}

body {
  margin: 0;
  font-family: var(--site-font-family);
  font-size: var(--site-desktop-body-size);
  line-height: var(--site-desktop-body-line);
  color: #3a3a3a;
  background: var(--site-color-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  color: #3a3a3a;
  font-family: var(--site-font-family-display);
  font-weight: var(--site-weight-heading);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--site-desktop-title-size);
  line-height: var(--site-desktop-title-line);
}

h2 {
  font-size: var(--site-desktop-section-title-size);
  line-height: var(--site-desktop-section-title-line);
}

h3 {
  font-size: var(--site-desktop-card-title-size);
  line-height: var(--site-desktop-card-title-line);
}

h4,
h5,
h6 {
  font-size: var(--site-desktop-small-title-size);
  line-height: var(--site-desktop-small-title-line);
}

p,
li,
dd,
dt {
  color: #3a3a3a;
}

a {
  color: #3a3a3a;
  text-decoration: none;
}

a:hover {
  color: #3a3a3a;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

strong,
b {
  color: #3a3a3a;
  font-weight: var(--site-weight-body-strong);
}

small {
  font-size: var(--site-desktop-small-size);
  line-height: var(--site-desktop-small-line);
}

code,
pre,
kbd,
samp {
  font-family: var(--site-font-family-mono);
}

.site-title {
  color: #3a3a3a;
  font-size: var(--site-desktop-title-size);
  line-height: var(--site-desktop-title-line);
  font-weight: var(--site-weight-heading);
  letter-spacing: -0.02em;
}

.site-section-title {
  color: #3a3a3a;
  font-size: var(--site-desktop-section-title-size);
  line-height: var(--site-desktop-section-title-line);
  font-weight: var(--site-weight-heading);
  letter-spacing: -0.02em;
}

.site-body-strong {
  color: #3a3a3a;
  font-size: var(--site-desktop-body-strong-size);
  line-height: var(--site-desktop-body-line);
  font-weight: var(--site-weight-body-strong);
}

.site-caption {
  color: #3a3a3a;
  font-size: var(--site-desktop-small-size);
  line-height: var(--site-desktop-small-line);
}

.ss-font-bold {
  font-weight: var(--site-weight-heading);
}

.ss-font-34 {
  font-size: var(--site-desktop-section-title-size);
  line-height: var(--site-desktop-section-title-line);
}

.ss-font-22 {
  font-size: var(--site-desktop-card-title-size);
  line-height: var(--site-desktop-card-title-line);
}

.ss-font-17 {
  font-size: var(--site-desktop-body-strong-size);
  line-height: var(--site-desktop-body-line);
}

.ss-font-16 {
  font-size: var(--site-desktop-body-size);
  line-height: var(--site-desktop-body-line);
}

.ss-font-15,
.ss-font-14,
.ss-font-13,
.ss-font-12 {
  font-size: var(--site-desktop-small-size);
  line-height: var(--site-desktop-small-line);
}

@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --site-desktop-title-size: 34px;
    --site-desktop-section-title-size: 30px;
    --site-desktop-card-title-size: 22px;
    --site-desktop-small-title-size: 19px;
    --site-desktop-body-size: 15px;
    --site-desktop-body-strong-size: 16px;
    --site-desktop-button-size: 14px;
  }

  .ss-font-34 {
    font-size: var(--site-desktop-section-title-size);
  }

  .ss-font-22 {
    font-size: var(--site-desktop-card-title-size);
  }

  .ss-font-17 {
    font-size: var(--site-desktop-body-strong-size);
  }

  .ss-font-16 {
    font-size: var(--site-desktop-body-size);
  }

  .ss-font-15,
  .ss-font-14,
  .ss-font-13,
  .ss-font-12 {
    font-size: var(--site-desktop-small-size);
  }
}

@media (max-width: 767px) {
  :root {
    --site-desktop-title-size: 30px;
    --site-desktop-title-line: 1.18;
    --site-desktop-section-title-size: 26px;
    --site-desktop-section-title-line: 1.28;
    --site-desktop-card-title-size: 20px;
    --site-desktop-card-title-line: 1.38;
    --site-desktop-small-title-size: 18px;
    --site-desktop-small-title-line: 1.44;
    --site-desktop-body-size: 15px;
    --site-desktop-body-strong-size: 16px;
    --site-desktop-body-line: 1.64;
    --site-desktop-small-size: 13px;
    --site-desktop-small-line: 1.54;
    --site-desktop-button-size: 14px;
  }

  .ss-font-34 {
    font-size: var(--site-desktop-section-title-size);
    line-height: var(--site-desktop-section-title-line);
  }

  .ss-font-22 {
    font-size: var(--site-desktop-card-title-size);
    line-height: var(--site-desktop-card-title-line);
  }

  .ss-font-17 {
    font-size: var(--site-desktop-body-strong-size);
    line-height: var(--site-desktop-body-line);
  }

  .ss-font-16 {
    font-size: var(--site-desktop-body-size);
    line-height: var(--site-desktop-body-line);
  }

  .ss-font-15,
  .ss-font-14,
  .ss-font-13,
  .ss-font-12 {
    font-size: var(--site-desktop-small-size);
    line-height: var(--site-desktop-small-line);
  }
}