:root {
  --bg: #f6f7fb;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-2: rgba(255, 255, 255, 0.98);
  --text: rgba(11, 16, 32, 0.92);
  --muted: rgba(11, 16, 32, 0.68);
  --muted-2: rgba(11, 16, 32, 0.52);
  --border: rgba(11, 16, 32, 0.12);
  --primary: #0b5fff;
  --primary-2: #4bb6ff;
  --good: #16a34a;
  --shadow: 0 16px 48px rgba(11, 16, 32, 0.12);
  --radius: 16px;
  --radius-sm: 12px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(900px 520px at 15% -10%, rgba(11, 95, 255, 0.16), transparent 60%),
    radial-gradient(760px 520px at 90% 0%, rgba(75, 182, 255, 0.14), transparent 60%),
    radial-gradient(900px 560px at 40% 115%, rgba(22, 163, 74, 0.08), transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
}

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

img,
svg,
video {
  max-width: 100%;
  height: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: 12px;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
  z-index: 9999;
}

.skip:focus {
  transform: translateY(0);
}

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

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

.fineprint {
  margin: 10px 0 0;
  color: var(--muted-2);
  font-size: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.2px;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.98);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #2f7bff 45%, var(--primary-2));
  border-color: rgba(11, 16, 32, 0.08);
  box-shadow: 0 12px 34px rgba(11, 95, 255, 0.22);
  color: rgba(255, 255, 255, 0.95);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0a57eb, #2f7bff 45%, #78d5ff);
}

.btn-secondary {
  background: rgba(11, 95, 255, 0.08);
  border-color: rgba(11, 95, 255, 0.18);
}

.btn-ghost {
  background: transparent;
}

.btn-link {
  background: transparent;
  border-color: transparent;
  padding-inline: 8px;
  color: rgba(11, 16, 32, 0.82);
}

.btn-block {
  width: 100%;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 16, 32, 0.08);
}

.site-header.is-elevated {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

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

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.6px;
  background: linear-gradient(135deg, rgba(11, 95, 255, 0.9), rgba(92, 200, 255, 0.7));
  border: 1px solid rgba(11, 16, 32, 0.08);
  color: rgba(255, 255, 255, 0.95);
}

.brand-text {
  display: grid;
  line-height: 1.1;
}

.brand-text small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(11, 16, 32, 0.12);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  border-radius: 99px;
  background: rgba(11, 16, 32, 0.8);
}

.nav {
  position: fixed;
  inset: 64px 16px auto 16px;
  padding: 14px;
  display: grid;
  gap: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(11, 16, 32, 0.12);
  box-shadow: 0 22px 70px rgba(11, 16, 32, 0.18);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.nav a {
  padding: 12px 12px;
  border-radius: 14px;
  color: rgba(11, 16, 32, 0.86);
  border: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.92);
}

.nav a:hover {
  background: rgba(11, 95, 255, 0.06);
}

.nav .nav-cta {
  margin-top: 4px;
}

body.nav-open .nav {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

body.nav-open {
  overflow: hidden;
}

.hero {
  position: relative;
  padding: 28px 0 22px;
}

.hero-grid {
  display: grid;
  gap: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(11, 16, 32, 0.12);
  background: rgba(255, 255, 255, 0.92);
  color: rgba(11, 16, 32, 0.78);
  font-weight: 600;
  font-size: 13px;
}

h1 {
  margin: 12px 0 10px;
  font-size: 34px;
  line-height: 1.12;
  letter-spacing: -0.6px;
}

.hero-em {
  background: linear-gradient(135deg, #0b5fff, #4bb6ff 45%, #16a34a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 0;
  color: rgba(11, 16, 32, 0.74);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.stats {
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.92);
}

.stat dt {
  color: var(--muted);
  font-size: 12px;
}

.stat dd {
  margin: 6px 0 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.hero-card .card {
  padding: 16px;
}

.card-title {
  margin: 0 0 10px;
  font-size: 16px;
}

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

.checklist li {
  position: relative;
  padding-left: 28px;
  color: rgba(11, 16, 32, 0.78);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: rgba(22, 163, 74, 0.12);
  border: 1px solid rgba(22, 163, 74, 0.22);
  box-shadow: 0 10px 26px rgba(22, 163, 74, 0.08);
}

.checklist li::after {
  content: "✓";
  position: absolute;
  left: 5px;
  top: 1px;
  font-size: 13px;
  color: rgba(22, 163, 74, 0.92);
  font-weight: 900;
}

.callout {
  margin-top: 14px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(11, 95, 255, 0.18);
  background: rgba(11, 95, 255, 0.06);
  color: rgba(11, 16, 32, 0.82);
}

.callout p {
  margin: 0;
}

.mini-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.hero-bg {
  position: absolute;
  inset: -40px -40px auto -40px;
  height: 240px;
  background: radial-gradient(600px 240px at 20% 30%, rgba(11, 95, 255, 0.18), transparent 70%),
    radial-gradient(520px 260px at 85% 20%, rgba(75, 182, 255, 0.12), transparent 70%);
  filter: blur(10px);
  z-index: -1;
}

.section {
  padding: 28px 0;
}

.section-alt {
  background: rgba(11, 16, 32, 0.03);
  border-top: 1px solid rgba(11, 16, 32, 0.06);
  border-bottom: 1px solid rgba(11, 16, 32, 0.06);
}

.section-head h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}

.section-head p {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 62ch;
}

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

.prose {
  padding: 16px;
}

.prose h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.prose p {
  margin: 10px 0 0;
  color: rgba(11, 16, 32, 0.74);
}

.prose p:first-of-type {
  margin-top: 0;
}

.page-hero .stats {
  grid-template-columns: repeat(3, 1fr);
}

.toc {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.toc-item {
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.92);
  color: rgba(11, 16, 32, 0.86);
  font-weight: 700;
}

.toc-item:hover {
  background: rgba(11, 95, 255, 0.06);
}

.base-head h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.base-head p {
  margin: 0 0 12px;
}

.base-card {
  padding: 16px;
}

.accordion {
  border: 1px solid rgba(11, 16, 32, 0.1);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  overflow: clip;
  margin-top: 10px;
}

.accordion summary {
  cursor: pointer;
  padding: 12px 12px;
  font-weight: 800;
  color: rgba(11, 16, 32, 0.86);
  list-style: none;
  user-select: none;
}

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

.accordion summary::after {
  content: "＋";
  float: right;
  color: rgba(11, 16, 32, 0.6);
}

.accordion[open] summary::after {
  content: "－";
}

.accordion-body {
  padding: 0 12px 12px;
  border-top: 1px solid rgba(11, 16, 32, 0.08);
}

.accordion-body p {
  margin: 10px 0 0;
  color: rgba(11, 16, 32, 0.74);
}

.bullet {
  margin: 10px 0 0;
  padding-left: 18px;
  color: rgba(11, 16, 32, 0.74);
}

.bullet li {
  margin: 6px 0;
}

.grid.client-grid {
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
}

.client {
  padding: 14px;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: center;
}

.client-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(11, 95, 255, 0.06);
  border: 1px solid rgba(11, 16, 32, 0.12);
  color: rgba(11, 95, 255, 0.9);
}

.client-icon svg {
  width: 22px;
  height: 22px;
}

.client-meta h3 {
  margin: 0;
  font-size: 14px;
}

.client-meta p {
  margin: 4px 0 0;
}

.member {
  padding: 16px;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  align-items: start;
}

.portrait {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  border: 1px solid rgba(11, 16, 32, 0.12);
  background: radial-gradient(60px 60px at 20% 20%, rgba(11, 95, 255, 0.22), transparent 55%),
    radial-gradient(60px 60px at 80% 80%, rgba(75, 182, 255, 0.18), transparent 55%),
    rgba(11, 95, 255, 0.06);
  display: grid;
  place-items: center;
  color: rgba(11, 95, 255, 0.92);
  font-weight: 900;
}

.portrait-initial {
  font-size: 18px;
}

.member-body h3 {
  margin: 0;
  font-size: 16px;
}

.member-desc {
  margin: 10px 0 0;
  color: rgba(11, 16, 32, 0.74);
}

.cards .card,
.case-grid .card,
.team-grid .card {
  padding: 16px;
}

.service h3,
.case h3,
.person h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.service p,
.case p,
.person p {
  margin: 0;
  color: rgba(11, 16, 32, 0.72);
}

.tags {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags li {
  font-size: 12px;
  color: rgba(11, 16, 32, 0.72);
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.92);
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 12px;
}

.timeline-item {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(11, 16, 32, 0.1);
  background: rgba(255, 255, 255, 0.92);
  position: relative;
}

.timeline-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.timeline-item p {
  margin: 0;
  color: rgba(11, 16, 32, 0.72);
}

.team-grid .avatar {
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: rgba(11, 95, 255, 0.06);
  border: 1px solid rgba(11, 16, 32, 0.12);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 10px;
}

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

.form {
  padding: 16px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

label span {
  display: block;
  font-weight: 700;
  font-size: 13px;
  color: rgba(11, 16, 32, 0.82);
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(11, 16, 32, 0.14);
  background: rgba(255, 255, 255, 0.96);
  color: rgba(11, 16, 32, 0.92);
  outline: none;
  font: inherit;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(11, 95, 255, 0.45);
  box-shadow: 0 0 0 4px rgba(11, 95, 255, 0.12);
}

.contact-card {
  padding: 16px;
}

.contact-list {
  margin: 10px 0 0;
  display: grid;
  gap: 10px;
}

.contact-list dt {
  color: var(--muted);
  font-size: 12px;
}

.contact-list dd {
  margin: 4px 0 0;
  font-weight: 700;
}

.divider {
  margin: 14px 0;
  height: 1px;
  background: rgba(11, 16, 32, 0.1);
}

.footer {
  padding: 22px 0 30px;
}

.footer-inner {
  display: grid;
  gap: 10px;
  border-top: 1px solid rgba(11, 16, 32, 0.1);
  padding-top: 16px;
}

.footer-brand {
  margin: 0 0 6px;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: rgba(11, 16, 32, 0.82);
}

.toast {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(11, 16, 32, 0.14);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 60px rgba(11, 16, 32, 0.18);
  color: rgba(11, 16, 32, 0.9);
  transform: translateY(12px);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 60;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 820px) {
  .nav-toggle {
    display: none;
  }

  body.nav-open {
    overflow: auto;
  }

  .nav {
    position: static;
    inset: auto;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: 0;
    box-shadow: none;
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .nav a {
    padding: 10px 12px;
    border-radius: 14px;
    border-color: transparent;
    background: transparent;
    color: rgba(11, 16, 32, 0.78);
  }

  .nav a:hover {
    background: rgba(11, 95, 255, 0.06);
    border-color: rgba(11, 16, 32, 0.12);
  }

  .hero {
    padding: 44px 0 26px;
  }

  h1 {
    font-size: 44px;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
    gap: 18px;
  }

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

  .grid.base-grid {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

  .grid.client-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .grid.member-grid {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

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

  .grid.team-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .nav,
  .toast {
    transition: none;
  }
}