:root {
  --ink: #101828;
  --muted: #667085;
  --surface: #ffffff;
  --surface-soft: #f7f7fb;
  --line: #e8e9f1;
  --brand: #7c3aed;
  --brand-2: #db2777;
  --brand-3: #f59e0b;
  --dark: #111827;
  --radius: 24px;
  --shadow: 0 24px 70px rgba(16, 24, 40, 0.11);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }
button { font: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 2000; padding: 10px 16px; background: #fff; border-radius: 10px; }
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: 76px;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(232,233,241,.9);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img { width: auto; height: 42px; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { position: relative; padding: 25px 0 23px; font-weight: 700; font-size: 15px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--brand); }
.site-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 15px; height: 3px; border-radius: 3px; background: linear-gradient(90deg,var(--brand),var(--brand-2)); }
.menu-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: #fff; color: var(--ink); cursor: pointer; align-items: center; justify-content: center; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 20px; height: 2px; background: currentColor; transition: .25s; }
.menu-toggle span { margin: 5px 0; }

.hero { position: relative; overflow: hidden; color: #fff; background: radial-gradient(circle at 85% 20%, rgba(219,39,119,.32), transparent 32%), linear-gradient(135deg,#101828,#242044 58%,#4c1d95); }
.hero::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; left: -180px; bottom: -280px; background: rgba(245,158,11,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 70px; min-height: 660px; padding-block: 76px; }
.eyebrow { margin: 0 0 16px; color: #f0abfc; font-size: 14px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.display { margin: 0; max-width: 700px; font-size: clamp(44px,6vw,76px); line-height: 1.08; letter-spacing: -.04em; }
.display span { color: #fff; background: linear-gradient(90deg,#f9a8d4,#c4b5fd,#fcd34d); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lead { max-width: 680px; margin: 24px 0 0; color: rgba(255,255,255,.78); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 24px; border: 1px solid transparent; border-radius: 999px; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: linear-gradient(110deg,var(--brand),var(--brand-2),var(--brand-3)); box-shadow: 0 14px 34px rgba(219,39,119,.25); }
.btn-light { color: #fff; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.08); }
.btn-outline { color: var(--brand); border-color: #d8c9f8; background: #fff; }
.hero-media { position: relative; }
.hero-media img { aspect-ratio: 4/4.6; object-fit: cover; border-radius: 38px; box-shadow: 28px 32px 80px rgba(0,0,0,.34); }
.hero-note { position: absolute; left: -28px; bottom: 32px; max-width: 210px; padding: 17px 20px; color: var(--ink); background: rgba(255,255,255,.94); border-radius: 18px; box-shadow: var(--shadow); font-weight: 800; }

.stats { position: relative; z-index: 2; margin-top: -44px; }
.stat-grid { display: grid; grid-template-columns: repeat(3,1fr); background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.stat { padding: 28px 32px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat strong { display: block; margin-bottom: 4px; color: var(--brand); font-size: 22px; }
.stat span { color: var(--muted); font-size: 14px; }

.section { padding-block: 96px; }
.section-soft { background: var(--surface-soft); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.section-head h2, .split-copy h2 { margin: 0; font-size: clamp(32px,4vw,48px); line-height: 1.2; letter-spacing: -.03em; }
.section-head p { max-width: 580px; margin: 0; color: var(--muted); }
.kicker { display: block; margin-bottom: 10px; color: var(--brand-2); font-size: 13px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.card { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card img { aspect-ratio: 16/10; object-fit: cover; }
.card-body { padding: 28px; }
.card h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.35; }
.card p { margin: 0; color: var(--muted); }
.card-link { display: inline-flex; margin-top: 18px; color: var(--brand); font-weight: 800; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag { padding: 5px 10px; color: #6941c6; background: #f2ecff; border-radius: 999px; font-size: 12px; font-weight: 800; }

.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.split-media img { aspect-ratio: 5/4; object-fit: cover; border-radius: 32px; box-shadow: var(--shadow); }
.split-copy p { color: var(--muted); }
.check-list { display: grid; gap: 12px; padding: 0; margin: 28px 0 0; list-style: none; }
.check-list li { position: relative; padding-left: 28px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-2); font-weight: 900; }

.case-card { position: relative; overflow: hidden; min-height: 420px; color: #fff; border-radius: var(--radius); background: #111827; }
.case-card img { position: absolute; inset: 0; height: 100%; object-fit: cover; opacity: .72; transition: transform .45s, opacity .3s; }
.case-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg,transparent 25%,rgba(8,15,29,.9)); }
.case-card:hover img { transform: scale(1.04); opacity: .82; }
.case-copy { position: absolute; z-index: 2; left: 28px; right: 28px; bottom: 28px; }
.case-copy small { color: #f9a8d4; font-weight: 900; }
.case-copy h3 { margin: 8px 0 4px; font-size: 25px; }
.case-copy p { margin: 0; color: rgba(255,255,255,.78); }

.band { padding-block: 72px; color: #fff; background: linear-gradient(110deg,#5b21b6,#be185d,#d97706); }
.band-wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.band h2 { margin: 0; font-size: clamp(30px,4vw,46px); line-height: 1.2; }
.band p { margin: 12px 0 0; color: rgba(255,255,255,.8); }

.page-hero { position: relative; display: grid; min-height: 430px; align-items: end; color: #fff; background: #111827 center/cover no-repeat; isolation: isolate; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg,rgba(10,16,30,.9),rgba(62,22,102,.54)); }
.page-hero .container { padding-block: 90px 74px; }
.page-hero h1 { max-width: 800px; margin: 0; font-size: clamp(42px,6vw,68px); line-height: 1.1; }
.page-hero p { max-width: 650px; margin: 18px 0 0; color: rgba(255,255,255,.82); font-size: 18px; }

.service-row { display: grid; grid-template-columns: .92fr 1.08fr; gap: 56px; align-items: center; padding: 40px; background: #fff; border: 1px solid var(--line); border-radius: 30px; }
.service-row + .service-row { margin-top: 28px; }
.service-row:nth-child(even) .service-image { order: 2; }
.service-image img { aspect-ratio: 4/3; object-fit: cover; border-radius: 22px; }
.service-copy h2 { margin: 0 0 12px; font-size: 32px; }
.service-copy p { color: var(--muted); }
.steps { counter-reset: step; }
.step { position: relative; padding: 28px 28px 28px 76px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 28px; display: grid; width: 36px; height: 36px; place-items: center; color: #fff; background: var(--brand); border-radius: 50%; font-weight: 900; }
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 30px; }
.contact-panel { height: 100%; padding: 42px; background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: 0 16px 50px rgba(16,24,40,.06); }
.contact-panel h2 { margin-top: 0; font-size: 34px; }
.contact-intro { margin: -6px 0 0; color: var(--muted); }
.contact-list { display: grid; gap: 0; margin-top: 28px; }
.contact-item { display: grid; grid-template-columns: 96px minmax(0,1fr); gap: 18px; align-items: start; padding: 18px 0; border-top: 1px solid var(--line); }
.contact-item small { display: block; padding-top: 2px; color: var(--muted); }
.contact-item a, .contact-item strong { font-size: 18px; font-weight: 800; }
.contact-item a { color: var(--brand); overflow-wrap: anywhere; }
.contact-item a:hover { color: var(--brand-2); }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.wechat-panel { position: relative; overflow: hidden; }
.wechat-panel::after { content: ""; position: absolute; right: -90px; top: -90px; width: 220px; height: 220px; border-radius: 50%; background: linear-gradient(135deg,rgba(124,58,237,.1),rgba(219,39,119,.08)); pointer-events: none; }
.wechat-figure { position: relative; z-index: 1; width: min(360px,100%); margin: 26px auto 0; }
.wechat-qr { border: 1px solid #d9e8f8; border-radius: 22px; background: #fff; box-shadow: 0 18px 44px rgba(28,103,185,.14); }
.wechat-figure figcaption { margin-top: 14px; color: var(--muted); font-size: 14px; text-align: center; }

.site-footer { padding: 58px 0 30px; color: rgba(255,255,255,.72); background: var(--dark); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 50px; }
.footer-brand img { width: auto; height: 44px; margin-bottom: 18px; filter: brightness(0) invert(1); }
.site-footer h3 { margin: 0 0 14px; color: #fff; font-size: 16px; }
.site-footer p { margin: 0; }
.footer-links { display: grid; gap: 8px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 44px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; }

@media (max-width: 980px) {
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 42px; }
  .hero-media { max-width: 620px; }
  .hero-media img { aspect-ratio: 16/10; }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .service-row { grid-template-columns: 1fr; }
  .service-row:nth-child(even) .service-image { order: initial; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .site-header, .nav-wrap { min-height: 68px; }
  .brand img { height: 36px; }
  .menu-toggle { display: flex; flex-direction: column; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; display: none; padding: 12px 20px 24px; align-items: stretch; flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 18px 40px rgba(16,24,40,.1); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 13px 8px; }
  .site-nav a[aria-current="page"]::after { display: none; }
  .hero-grid { min-height: auto; padding-block: 64px 84px; }
  .display { font-size: clamp(40px,12vw,58px); }
  .hero-note { left: 12px; bottom: 16px; }
  .stats { margin-top: -30px; }
  .stat-grid { grid-template-columns: 1fr; }
  .stat + .stat { border-left: 0; border-top: 1px solid var(--line); }
  .section { padding-block: 72px; }
  .section-head { align-items: start; flex-direction: column; }
  .grid-3 { grid-template-columns: 1fr; }
  .case-card { min-height: 390px; }
  .band-wrap { align-items: start; flex-direction: column; }
  .page-hero { min-height: 360px; }
  .page-hero .container { padding-block: 72px 56px; }
  .service-row, .contact-panel { padding: 26px; }
  .contact-item { grid-template-columns: 82px minmax(0,1fr); gap: 12px; }
  .contact-actions .btn { flex: 1 1 150px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
  .contact-item { grid-template-columns: 1fr; gap: 3px; }
  .contact-item small { padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}