:root {
  --navy: #082b55;
  --navy-2: #0b3b70;
  --blue: #1769aa;
  --cyan: #43a9cb;
  --ink: #172536;
  --muted: #5e6d7d;
  --line: #dbe4ec;
  --tint: #f2f7fa;
  --white: #fff;
  --shadow: 0 18px 45px rgba(8, 43, 85, .10);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; background: #fff; color: var(--navy); }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 50; background: #050505; border-bottom: 1px solid rgba(75,178,202,.22); }
.header-inner { width: min(calc(100% - 40px), 1200px); min-height: 100px; display: grid; grid-template-columns: 190px minmax(0, 1fr); align-items: stretch; gap: 22px; }
.brand { position: relative; display: block; width: 190px; min-width: 0; overflow: visible; }
.brand img { position: absolute; left: -28px; top: -25px; display: block; width: 214px; height: 150px; max-width: none; object-fit: fill; }
.header-navigation { min-width: 0; display: flex; flex-direction: column; }
.locale-nav { height: 26px; display: flex; align-items: flex-start; justify-content: flex-end; }
.locale-nav a { padding: 5px 10px; border-left: 1px solid #d9deeb; background: #f4f6fb; color: #061652; text-decoration: none; font-size: 12px; line-height: 1.25; white-space: nowrap; }
.locale-nav a:first-child { color: #0d3179; font-weight: 700; }
.primary-nav { flex: 1; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); align-items: stretch; margin: 0; }
.primary-nav a { position: relative; display: flex; align-items: center; justify-content: center; color: #fff; text-decoration: none; font-size: 19px; font-weight: 600; line-height: 1.2; white-space: nowrap; }
.primary-nav a::after { content: ""; position: absolute; left: 12%; right: 88%; bottom: 0; height: 2px; background: #fff; transition: right .2s ease; }
.primary-nav a:hover::after, .primary-nav a.active::after { right: 12%; }
.primary-nav a:hover, .primary-nav a.active { color: #e8f000; }

.hero { overflow: hidden; color: #fff; background: linear-gradient(120deg, #071e3d 0%, #0a3d73 56%, #126ca3 100%); }
.hero::before { content: ""; position: absolute; inset: 100px 0 auto; height: 640px; pointer-events: none; background: radial-gradient(circle at 78% 24%, rgba(77,190,218,.22), transparent 32%), linear-gradient(115deg, transparent 58%, rgba(255,255,255,.055) 58% 59%, transparent 59%); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(340px, .65fr); gap: 70px; align-items: center; min-height: 640px; padding-top: 80px; padding-bottom: 80px; }
.eyebrow { margin: 0 0 12px; color: var(--cyan); font-size: 13px; line-height: 1.4; letter-spacing: .16em; font-weight: 800; }
.hero h1 { margin: 0; font-size: clamp(42px, 5vw, 68px); line-height: 1.12; letter-spacing: -.03em; }
.hero-lead { max-width: 720px; margin: 26px 0 0; color: rgba(255,255,255,.86); font-size: 19px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border: 1px solid transparent; border-radius: 8px; text-decoration: none; font-size: 15px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: #fff; color: var(--navy); box-shadow: 0 10px 24px rgba(0,0,0,.14); }
.button-secondary { border-color: rgba(255,255,255,.42); color: #fff; background: rgba(255,255,255,.06); }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 30px 0 0; padding: 0; list-style: none; color: rgba(255,255,255,.72); font-size: 14px; }
.hero-points li::before { content: "✓"; margin-right: 7px; color: #65d0df; font-weight: 800; }
.hero-card { padding: 28px; border: 1px solid rgba(255,255,255,.18); border-radius: 22px; background: rgba(255,255,255,.09); box-shadow: 0 24px 70px rgba(0,0,0,.18); backdrop-filter: blur(12px); }
.card-kicker { margin: 0 0 12px; color: rgba(255,255,255,.74); font-size: 14px; }
.hero-card ol { margin: 0; padding: 0; list-style: none; }
.hero-card li { display: grid; grid-template-columns: 44px 1fr; gap: 0 12px; padding: 17px 0; border-top: 1px solid rgba(255,255,255,.14); }
.hero-card li span { grid-row: 1 / 3; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; color: #9ce1ec; background: rgba(67,169,203,.16); font-size: 12px; font-weight: 800; }
.hero-card strong { font-size: 16px; }
.hero-card small { color: rgba(255,255,255,.65); font-size: 13px; }

.answer-strip { background: #e9f3f7; border-bottom: 1px solid #d4e5ec; }
.answer-strip .container { padding: 24px 0; color: #27435b; font-size: 15px; }
.answer-strip strong { color: var(--navy); }

.section { padding: 96px 0; }
.section-tint { background: var(--tint); }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading.narrow { max-width: 680px; }
.section-heading h2, .split-grid h2, .cta-section h2 { margin: 0; color: var(--navy); font-size: clamp(30px, 3.5vw, 44px); line-height: 1.25; letter-spacing: -.025em; }
.section-heading > p:last-child, .section-copy { margin: 16px 0 0; color: var(--muted); font-size: 17px; }
.card-grid { display: grid; gap: 20px; }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.info-card { min-height: 218px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 4px 0 transparent; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.info-card:hover { transform: translateY(-4px); border-color: #b8cfdf; box-shadow: var(--shadow); }
.info-card > span { color: var(--blue); font-size: 12px; letter-spacing: .12em; font-weight: 800; }
.info-card h3 { margin: 20px 0 9px; color: var(--navy); font-size: 20px; }
.info-card p { margin: 0; color: var(--muted); font-size: 15px; }

.process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }
.process li { display: flex; gap: 18px; min-height: 185px; padding: 26px; border-radius: var(--radius); background: #fff; border: 1px solid #e0e8ee; }
.process li > span { display: grid; place-items: center; flex: 0 0 42px; width: 42px; height: 42px; border-radius: 12px; color: #fff; background: var(--blue); font-size: 16px; font-weight: 800; }
.process h3 { margin: 2px 0 8px; color: var(--navy); font-size: 18px; }
.process p { margin: 0; color: var(--muted); font-size: 14px; }

.split-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 82px; align-items: start; }
.evidence-list { border-top: 1px solid var(--line); }
.evidence-list > div { display: grid; grid-template-columns: 180px 1fr; gap: 26px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.evidence-list strong { color: var(--navy); }
.evidence-list p { margin: 0; color: var(--muted); font-size: 15px; }

.section-dark { color: #fff; background: var(--navy); }
.section-heading.light h2 { color: #fff; }
.section-heading.light > p:last-child { color: rgba(255,255,255,.68); }
.deliverables { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); overflow: hidden; }
.deliverables > div { min-height: 190px; padding: 30px 24px; border-right: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.035); }
.deliverables > div:last-child { border-right: 0; }
.deliverables strong { display: block; margin-bottom: 12px; font-size: 18px; }
.deliverables p { margin: 0; color: rgba(255,255,255,.65); font-size: 14px; }
.boundary-note { margin: 26px 0 0; padding: 18px 20px; border-left: 3px solid var(--cyan); color: rgba(255,255,255,.78); background: rgba(255,255,255,.05); font-size: 14px; }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card { display: flex; flex-direction: column; min-height: 260px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); color: inherit; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.case-card > span { color: var(--blue); font-size: 13px; font-weight: 800; }
.case-card h3 { margin: 22px 0 28px; color: var(--navy); font-size: 19px; line-height: 1.55; }
.case-card strong { margin-top: auto; color: var(--blue); font-size: 14px; }

.why-grid { align-items: center; }
.text-link { display: inline-block; margin-top: 26px; color: var(--blue); text-decoration: none; font-weight: 800; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 130px 1fr; gap: 24px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.check-list strong { color: var(--navy); }
.check-list span { color: var(--muted); font-size: 15px; }

.faq-layout { display: grid; grid-template-columns: 320px 1fr; gap: 90px; align-items: start; }
.sticky-heading { position: sticky; top: 116px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 42px 24px 0; color: var(--navy); cursor: pointer; list-style: none; font-size: 18px; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 20px; color: var(--blue); font-size: 26px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 760px; margin: -6px 0 24px; color: var(--muted); }

.cta-section { padding: 74px 0; color: #fff; background: linear-gradient(110deg, #12699f, #082b55); }
.cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: center; }
.cta-section h2 { color: #fff; }
.cta-section p:last-child { max-width: 720px; margin: 14px 0 0; color: rgba(255,255,255,.72); }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px; }
.button-white { color: var(--navy); background: #fff; }
.button-outline-white { color: #fff; border-color: rgba(255,255,255,.55); }

.site-footer { padding: 48px 0 22px; color: rgba(255,255,255,.68); background: #061b34; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 40px; }
.footer-grid strong { color: #fff; }
.footer-grid p { margin: 9px 0 0; font-size: 14px; }
.footer-grid a { text-decoration: none; }
.copyright { margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.10); font-size: 13px; }

@media (max-width: 980px) {
  .header-inner { grid-template-columns: 160px minmax(0, 1fr); gap: 12px; }
  .brand { width: 160px; }
  .brand img { left: -24px; top: -17px; width: 190px; height: 133px; }
  .primary-nav a { font-size: 15px; }
  .locale-nav a { padding-inline: 7px; font-size: 11px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 620px; }
  .card-grid-3, .process { grid-template-columns: repeat(2, 1fr); }
  .deliverables { grid-template-columns: repeat(2, 1fr); }
  .deliverables > div:nth-child(2) { border-right: 0; }
  .deliverables > div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.16); }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { min-height: auto; }
  .split-grid { gap: 48px; }
  .faq-layout { grid-template-columns: 260px 1fr; gap: 50px; }
}

@media (max-width: 740px) {
  .container { width: min(100% - 28px, 1160px); }
  .site-header { position: static; }
  .header-inner { width: min(100% - 28px, 1160px); min-height: 76px; grid-template-columns: 150px minmax(0, 1fr); gap: 8px; }
  .brand { width: 150px; height: 74px; }
  .brand img { position: absolute; left: -22px; top: -28px; width: 190px; height: 133px; max-width: none; object-fit: fill; }
  .locale-nav { display: none; }
  .primary-nav { grid-template-columns: 1fr; }
  .primary-nav a { display: none; }
  .primary-nav a.active { display: flex; justify-content: flex-end; font-size: 14px; }
  .primary-nav a.active::after { left: 22%; right: 0; }
  .hero::before { inset: 76px 0 auto; }
  .hero-grid { min-height: auto; padding-top: 62px; padding-bottom: 62px; }
  .hero h1 { font-size: 40px; }
  .hero-lead { font-size: 17px; line-height: 1.8; }
  .section { padding: 70px 0; }
  .section-heading { margin-bottom: 30px; }
  .card-grid-3, .process, .split-grid, .faq-layout, .cta-inner, .footer-grid { grid-template-columns: 1fr; }
  .process li, .info-card { min-height: auto; }
  .split-grid, .faq-layout { gap: 36px; }
  .evidence-list > div { grid-template-columns: 1fr; gap: 6px; }
  .deliverables { grid-template-columns: 1fr; }
  .deliverables > div { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .deliverables > div:last-child { border-bottom: 0; }
  .check-list li { grid-template-columns: 1fr; gap: 4px; }
  .sticky-heading { position: static; }
  .cta-actions { justify-content: flex-start; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}