:root {
  --navy: #061a3a;
  --navy-2: #0b2b58;
  --blue: #0866e6;
  --blue-2: #1d7cff;
  --ink: #0c1730;
  --muted: #66758f;
  --line: #dbe5f1;
  --paper: #ffffff;
  --bg: #f5f8fc;
  --shadow: 0 24px 60px rgba(16, 45, 85, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { max-width: 100%; }

.site-header { position: sticky; top: 0; z-index: 30; height: 84px; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.header-inner { width: min(1440px, calc(100% - 64px)); height: 100%; margin: auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 40px; }
.brand { display: inline-flex; flex-direction: column; width: max-content; }
.brand strong { font-size: 20px; letter-spacing: .02em; }
.brand span { display: flex; align-items: center; gap: 10px; margin-top: 5px; color: #8391a7; font-size: 9px; letter-spacing: .13em; }
.brand i, footer i { width: 1px; height: 12px; background: #c5d0df; }
.main-nav { height: 100%; display: flex; align-items: center; gap: 54px; font-size: 20px; font-weight: 750; letter-spacing: .02em; }
.main-nav a, .main-nav span { position: relative; display: flex; height: 100%; align-items: center; }
.main-nav span { color: #59677e; }
.main-nav .active { color: var(--blue); }
.main-nav .active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--blue); }
.login-preview { justify-self: end; width: 92px; height: 42px; border: 0; border-radius: 24px; background: #e5edf8; color: #7d8ba1; font-weight: 700; cursor: not-allowed; }
.shell { width: min(1440px, calc(100% - 64px)); margin-inline: auto; }

.hero { min-height: 650px; display: grid; grid-template-columns: .82fr 1.18fr; gap: 58px; align-items: center; padding-block: 62px; }
.eyebrow { display: flex; align-items: center; gap: 16px; color: #6c7c96; font-size: 11px; letter-spacing: .23em; }
.eyebrow span { width: 38px; height: 2px; background: var(--blue); }
.eyebrow.light { color: #87b1e1; }
.hero h1 { max-width: 660px; margin: 28px 0 24px; font-size: clamp(46px, 4vw, 68px); line-height: 1.1; letter-spacing: -.04em; }
.hero-copy > p { max-width: 590px; margin: 0; color: #5d6d86; font-size: 18px; line-height: 1.9; }
.primary-action { position: relative; display: inline-flex; align-items: center; min-height: 54px; margin-top: 34px; padding: 15px 30px; overflow: hidden; border: 1px solid rgba(255,255,255,.34); border-radius: 29px; color: white; background: linear-gradient(105deg, #0968e7, #0a78f2 58%, #075dce); box-shadow: 0 14px 32px rgba(8,102,230,.26), inset 0 1px 0 rgba(255,255,255,.25); font-weight: 700; transition: transform .25s ease, box-shadow .25s ease; }
.primary-action:hover, .primary-action:focus-visible { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(8,102,230,.32); outline: none; }

.hero-visual { position: relative; height: 520px; overflow: hidden; border-radius: 34px; color: white; background: #071d3e; box-shadow: var(--shadow); }
.hero-visual > img { width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(2,15,34,.18), rgba(2,15,34,.05) 42%, rgba(2,15,34,.82)); }
.visual-head { position: absolute; left: 26px; right: 26px; top: 24px; display: flex; align-items: center; color: #d6e8fa; font-size: 10px; letter-spacing: .14em; }
.visual-head span { display: flex; align-items: center; gap: 9px; }
.visual-head i { width: 7px; height: 7px; border-radius: 50%; background: #52b2ff; box-shadow: 0 0 15px #52b2ff; animation: softPulse 2.4s ease-in-out infinite; }
.visual-title { position: absolute; left: 34px; bottom: 82px; }
.visual-title strong { display: block; font-size: 30px; letter-spacing: -.02em; }
.visual-title span { display: block; margin-top: 10px; color: #b9d1e9; font-size: 9px; letter-spacing: .2em; }
.visual-axis { position: absolute; left: 34px; right: 34px; bottom: 28px; display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto; align-items: center; gap: 12px; color: #d7e8f8; font-size: 11px; }
.visual-axis i { height: 1px; background: linear-gradient(90deg, #44a6ff, rgba(108,183,255,.18)); }

.industry-atlas { scroll-margin-top: 84px; padding-block: 88px 100px; color: white; background: radial-gradient(circle at 88% 12%, rgba(28,91,166,.55), transparent 30%), linear-gradient(135deg, #061a3a, #0a2b58); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 60px; }
.section-heading h2, .detail-heading h2, .principle-copy h2, .closing h2 { margin: 18px 0 0; font-size: clamp(34px, 3vw, 48px); line-height: 1.2; letter-spacing: -.03em; }
.section-heading > p { max-width: 500px; margin: 0; color: #b5c9df; font-size: 16px; line-height: 1.8; }
.industry-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; margin-top: 46px; }
.industry-card { position: relative; min-width: 0; height: 270px; padding: 20px; overflow: hidden; border: 1px solid rgba(152,198,245,.22); border-radius: 20px; color: white; background: #092c5d; text-align: left; cursor: pointer; isolation: isolate; transition: flex .35s ease, transform .3s ease, border-color .3s ease, box-shadow .3s ease; }
.industry-card::before { content: ""; position: absolute; inset: 0; z-index: -2; background-image: var(--card-image); background-size: cover; background-position: var(--card-position); filter: saturate(.84); transform: scale(1.04); transition: transform .55s ease, filter .4s ease; }
.industry-card::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(3,18,42,.32), rgba(3,18,42,.88)); }
.industry-card:hover, .industry-card:focus-visible, .industry-card.active { transform: translateY(-7px); border-color: rgba(117,190,255,.82); box-shadow: 0 20px 34px rgba(0,0,0,.22); outline: none; }
.industry-card:hover::before, .industry-card.active::before { filter: saturate(1.04); transform: scale(1.1); }
.card-index { color: #a9d2f8; font-size: 10px; letter-spacing: .14em; }
.industry-card strong { position: absolute; left: 20px; bottom: 51px; font-size: 24px; }
.industry-card small { position: absolute; left: 20px; right: 18px; bottom: 30px; overflow: hidden; color: #b7cce1; font-size: 8px; letter-spacing: .11em; white-space: nowrap; text-overflow: ellipsis; }
.industry-card i { position: absolute; right: 18px; bottom: 27px; width: 26px; height: 26px; border: 1px solid rgba(188,221,255,.38); border-radius: 50%; }
.industry-card i::after { content: ""; position: absolute; left: 8px; top: 8px; width: 7px; height: 7px; border-top: 1px solid white; border-right: 1px solid white; transform: rotate(45deg); }
.industry-card.active i { background: var(--blue); border-color: #68b5ff; box-shadow: 0 0 20px rgba(67,164,255,.48); }
.load-error { grid-column: 1 / -1; padding: 30px; color: #fff; background: rgba(180,40,40,.22); border-radius: 16px; }

.industry-detail { scroll-margin-top: 108px; padding-block: 94px 68px; }
.detail-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: end; }
.detail-heading > p { margin: 0 0 6px; padding-left: 34px; border-left: 1px solid #cad7e7; color: var(--muted); font-size: 17px; line-height: 1.85; }
.detail-stage { display: grid; grid-template-columns: .88fr 1.12fr; min-height: 470px; margin-top: 46px; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background: white; box-shadow: 0 18px 48px rgba(19,55,96,.08); }
.detail-image { position: relative; min-height: 470px; margin: 0; overflow: hidden; background: #0a234a; }
.detail-image img { width: 100%; height: 100%; object-fit: cover; }
.detail-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 35%, rgba(2,18,42,.86)); }
.detail-image figcaption { position: absolute; z-index: 2; left: 34px; right: 34px; bottom: 32px; color: white; }
.detail-image figcaption > span { color: #b9d8f3; font-size: 10px; letter-spacing: .17em; }
.detail-image figcaption > strong { display: block; margin-top: 9px; font-size: 42px; }
.detail-framework { padding: 48px; display: flex; flex-direction: column; justify-content: space-between; }
.challenge-block > span, .panel-label { color: var(--blue); font-size: 10px; letter-spacing: .18em; }
.challenge-block p { margin: 18px 0 0; color: #34465f; font-size: 20px; line-height: 1.75; }
.capability-route { display: grid; grid-template-columns: 1fr 26px 1fr 26px 1fr 26px 1fr; align-items: stretch; margin-top: 42px; }
.capability-route > div { min-height: 154px; padding: 18px 14px; border: 1px solid #dbe7f3; border-radius: 15px; background: #f9fbfe; }
.capability-route b { display: block; color: var(--blue); font-size: 9px; letter-spacing: .12em; }
.capability-route strong { display: block; margin-top: 23px; font-size: 16px; }
.capability-route small { display: block; margin-top: 10px; color: #718198; font-size: 11px; line-height: 1.55; }
.capability-route > i { position: relative; align-self: center; height: 1px; background: linear-gradient(90deg, #b8d7f7, #4ca4f7); }
.capability-route > i::after { content: ""; position: absolute; right: 0; top: -3px; width: 6px; height: 6px; border-top: 1px solid #4ca4f7; border-right: 1px solid #4ca4f7; transform: rotate(45deg); }

.detail-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 22px; }
.detail-columns article { padding: 34px; border: 1px solid var(--line); border-radius: 24px; background: white; }
.detail-columns h3 { margin: 13px 0 26px; font-size: 25px; }
.item-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.list-item { min-height: 76px; padding: 16px; display: grid; grid-template-columns: 32px 1fr; align-items: center; gap: 11px; border: 1px solid #dfebf6; border-radius: 13px; background: #fbfdff; }
.list-item b { color: #2180ec; font-size: 9px; letter-spacing: .12em; }
.list-item span { color: #31445e; font-size: 15px; font-weight: 700; line-height: 1.45; }

.principles { display: grid; grid-template-columns: .74fr 1.26fr; gap: 64px; margin-block: 58px 90px; padding: 60px 64px; border-radius: 32px; color: white; background: radial-gradient(circle at 87% 13%, #205c9e, transparent 38%), linear-gradient(135deg, #061a3a, #0b2b58); box-shadow: var(--shadow); }
.principle-copy p { max-width: 520px; margin: 24px 0 0; color: #b8c9dc; font-size: 17px; line-height: 1.8; }
.principle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.principle-grid article { min-height: 148px; padding: 22px; border: 1px solid rgba(149,196,244,.18); border-radius: 17px; background: rgba(255,255,255,.055); }
.principle-grid b { color: #67b3ff; font-size: 10px; letter-spacing: .14em; }
.principle-grid h3 { margin: 18px 0 8px; font-size: 18px; }
.principle-grid p { margin: 0; color: #aec1d7; font-size: 13px; line-height: 1.6; }

.closing { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; padding-block: 30px 110px; }
.closing p { margin: 0; padding-left: 36px; border-left: 1px solid #cbd8e8; color: var(--muted); font-size: 18px; line-height: 1.9; }
footer { height: 88px; border-top: 1px solid var(--line); background: white; color: #8190a6; display: flex; align-items: center; justify-content: center; gap: 14px; font-size: 11px; letter-spacing: .14em; }

@keyframes softPulse { 50% { opacity: .45; transform: scale(.9); } }

@media (max-width: 1180px) {
  .header-inner, .shell { width: min(100% - 36px, 980px); }
  .brand span { display: none; }
  .main-nav { gap: 24px; font-size: 17px; }
  .hero { grid-template-columns: 1fr; }
  .hero-visual { height: 520px; }
  .industry-grid { grid-template-columns: repeat(4,1fr); }
  .detail-stage { grid-template-columns: 1fr; }
  .detail-image { min-height: 430px; }
  .principles { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-header { height: auto; }
  .header-inner { grid-template-columns: 1fr auto; padding-block: 14px; gap: 12px; }
  .brand strong { font-size: 17px; }
  .main-nav { grid-column: 1 / -1; order: 3; height: 42px; justify-content: space-between; font-size: 13px; }
  .login-preview { grid-column: 2; grid-row: 1; width: 70px; }
  .hero { padding-block: 44px; }
  .hero h1 { font-size: 42px; }
  .hero-visual { height: 450px; border-radius: 24px; }
  .visual-axis { grid-template-columns: 1fr 1fr; }
  .visual-axis i { display: none; }
  .section-heading, .detail-heading, .closing { grid-template-columns: 1fr; display: grid; gap: 30px; align-items: start; }
  .industry-grid { grid-template-columns: 1fr 1fr; }
  .industry-card { height: 230px; }
  .detail-framework { padding: 30px 22px; }
  .capability-route { grid-template-columns: 1fr 1fr; gap: 10px; }
  .capability-route > i { display: none; }
  .detail-columns { grid-template-columns: 1fr; }
  .item-list { grid-template-columns: 1fr; }
  .principles { padding: 38px 24px; }
  .principle-grid { grid-template-columns: 1fr; }
  .closing p { padding: 0; border: 0; }
}

@media (max-width: 460px) {
  .industry-grid { grid-template-columns: 1fr; }
  .hero-visual { height: 390px; }
  .visual-title strong { font-size: 25px; }
  .principle-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

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