:root {
  --ink: #172033;
  --muted: #637083;
  --line: #dbe3ec;
  --soft: #f4f7fb;
  --white: #ffffff;
  --blue: #0c63b6;
  --blue-dark: #073d77;
  --red: #d92d20;
  --shadow: 0 18px 48px rgba(18, 39, 72, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--white);
  line-height: 1.6;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 76px;
  padding: 14px clamp(20px, 5vw, 72px);
  color: var(--white);
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.site-header.is-scrolled,
.site-header.menu-open {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 28px rgba(20, 42, 70, 0.12);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: 258px;
  min-width: 258px;
}

.brand-logo {
  width: 100%;
  height: 52px;
  object-fit: contain;
  object-position: left center;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  color: var(--white);
  background: var(--red);
  font-weight: 800;
  letter-spacing: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  font-size: 12px;
  opacity: 0.82;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 36px);
  font-size: 15px;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  content: "";
  background: var(--red);
  transition: width 0.2s ease;
}

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

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  color: var(--white);
}

.hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 21, 41, 0.86) 0%, rgba(5, 21, 41, 0.62) 42%, rgba(5, 21, 41, 0.2) 100%),
    linear-gradient(180deg, rgba(5, 21, 41, 0.28), rgba(5, 21, 41, 0.72));
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(760px, calc(100% - 40px));
  min-height: 760px;
  padding: 110px 0 70px;
  margin-left: clamp(20px, 6vw, 86px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-text {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  color: var(--white);
  background: var(--red);
}

.btn.ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 680px;
  margin: 56px 0 0;
}

.hero-stats div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.hero-stats dt {
  font-size: 30px;
  font-weight: 800;
}

.hero-stats dd {
  margin: 2px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.trust-band div {
  display: grid;
  min-height: 76px;
  place-items: center;
  border-right: 1px solid var(--line);
  color: var(--blue-dark);
  font-weight: 800;
}

.section {
  padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(280px, 1fr);
  gap: clamp(24px, 6vw, 88px);
  align-items: end;
  margin-bottom: 42px;
}

.section-head.compact {
  display: block;
  max-width: 720px;
}

.section h2,
.contact h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

.section-head p:last-child,
.split > div > p,
.contact-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.case-grid article,
.advantage-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-card {
  min-height: 220px;
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-card:hover {
  border-color: rgba(12, 99, 182, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card-icon {
  color: var(--red);
  font-weight: 800;
}

.service-card h3,
.case-grid h3,
.advantage-list h3 {
  margin: 14px 0 10px;
  font-size: 21px;
  line-height: 1.3;
}

.service-card p,
.case-grid p,
.advantage-list p {
  margin: 0;
  color: var(--muted);
}

.process,
.insights {
  background: var(--soft);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  margin: 40px 0 0;
  list-style: none;
  counter-reset: step;
}

.timeline li {
  position: relative;
  min-height: 190px;
  padding: 30px 24px;
  border-top: 4px solid var(--blue);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(18, 39, 72, 0.08);
  counter-increment: step;
}

.timeline li::before {
  content: "0" counter(step);
  color: rgba(12, 99, 182, 0.16);
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
}

.timeline strong {
  display: block;
  margin: 18px 0 8px;
  font-size: 20px;
}

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

.split {
  display: grid;
  grid-template-columns: minmax(280px, 0.84fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 86px);
  align-items: center;
}

.advantage-list {
  display: grid;
  gap: 16px;
}

.advantage-list article {
  padding: 24px 28px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.case-grid article,
.case-grid a {
  min-height: 230px;
  padding: 30px;
  background:
    linear-gradient(180deg, rgba(12, 99, 182, 0.06), transparent),
    var(--white);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.case-grid a:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.case-grid span {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #eaf3fc;
  font-size: 13px;
  font-weight: 800;
}

.news-list {
  display: grid;
  max-width: 980px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.news-list a {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  font-size: 20px;
  font-weight: 800;
}

.news-list time {
  color: var(--red);
  font-size: 14px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 560px);
  gap: clamp(28px, 7vw, 96px);
  padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 72px);
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(7, 61, 119, 0.95), rgba(12, 99, 182, 0.86)),
    #0b4d8d;
}

.contact .eyebrow {
  color: #ffb2aa;
}

.contact-copy p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.78);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 24px 70px rgba(3, 19, 43, 0.3);
}

.contact-form label,
.contact-form span {
  display: grid;
  gap: 8px;
}

.contact-form span {
  color: var(--ink);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(12, 99, 182, 0.12);
}

.contact-form .btn {
  width: 100%;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 72px);
  color: #a7b1bf;
  background: #111827;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--white);
}

.floating-contact {
  position: fixed;
  z-index: 30;
  right: 18px;
  top: 50%;
  display: grid;
  gap: 8px;
  transform: translateY(-50%);
}

.floating-contact a,
.floating-contact button {
  width: 48px;
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  color: var(--white);
  background: var(--blue-dark);
  box-shadow: 0 12px 32px rgba(7, 61, 119, 0.22);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  writing-mode: vertical-rl;
  letter-spacing: 0;
}

.floating-contact .float-phone {
  display: grid;
  min-height: 112px;
  place-items: center;
  background: var(--red);
}

.float-qr {
  position: absolute;
  right: 58px;
  top: 0;
  display: none;
  width: 190px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.float-qr img {
  width: 100%;
  border-radius: 6px;
}

.float-qr span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.floating-contact:hover .float-qr,
.floating-contact.show-qr .float-qr {
  display: block;
}

.page-hero {
  padding: 150px clamp(20px, 5vw, 72px) 72px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(5, 21, 41, 0.9), rgba(12, 99, 182, 0.76)),
    linear-gradient(135deg, rgba(4,38,63,.92), rgba(18,96,126,.76));
}

.page-hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.12;
}

.page-hero p {
  max-width: 760px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 36px;
}

.content-main {
  min-width: 0;
}

.sidebar {
  display: grid;
  align-content: start;
  gap: 18px;
}

.side-panel,
.article-card,
.detail-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.side-panel {
  padding: 24px;
}

.side-panel h3 {
  margin: 0 0 14px;
  font-size: 20px;
}

.side-panel a,
.side-panel span {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.side-panel a:last-child,
.side-panel span:last-child {
  border-bottom: 0;
}

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

.article-card {
  display: grid;
  gap: 12px;
  padding: 28px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.article-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.article-card time,
.article-meta {
  color: var(--muted);
  font-size: 14px;
}

.article-card h2,
.article-card h3 {
  margin: 0;
  font-size: 24px;
  line-height: 1.28;
}

.article-card p {
  margin: 0;
  color: var(--muted);
}

.detail-card {
  padding: clamp(28px, 5vw, 52px);
}

.detail-card h2 {
  margin-top: 34px;
  font-size: 28px;
}

.detail-card p,
.detail-card li {
  color: var(--muted);
  font-size: 17px;
}

.detail-card ul {
  padding-left: 22px;
}

.seo-note {
  padding: 22px;
  border-left: 4px solid var(--red);
  border-radius: 8px;
  background: var(--soft);
}

@media (max-width: 920px) {
  .site-header {
    min-height: 68px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 20px;
    right: 20px;
    display: none;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-header.menu-open .site-nav {
    display: grid;
    gap: 8px;
  }

  .hero,
  .hero-content {
    min-height: 700px;
  }

  .hero-content {
    margin-left: 20px;
  }

  .trust-band,
  .service-grid,
  .timeline,
  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-head,
  .split,
  .contact,
  .content-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .brand {
    width: 210px;
    min-width: 210px;
  }

  .brand-logo {
    height: 44px;
  }

  .floating-contact {
    right: 10px;
  }

  .floating-contact a,
  .floating-contact button {
    width: 42px;
    min-height: 42px;
    font-size: 12px;
  }

  .floating-contact .float-phone {
    min-height: 100px;
  }

  .float-qr {
    right: 50px;
    width: 164px;
  }

  .hero,
  .hero-content {
    min-height: 660px;
  }

  .hero-content {
    width: calc(100% - 40px);
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-stats,
  .trust-band,
  .service-grid,
  .timeline,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .trust-band div {
    min-height: 58px;
  }

  .news-list a {
    grid-template-columns: 1fr;
    gap: 6px;
    font-size: 18px;
  }

  .site-footer {
    display: grid;
  }
}
.brand-text{font-size:20px;font-weight:800;color:#08335c;white-space:nowrap}.qr-fallback{width:112px;height:112px;display:grid;place-items:center;text-align:center;border:1px solid rgba(20,62,96,.18);background:#fff;color:#0e4f71;font-weight:800;line-height:1.5}