:root {
  --ink: #17232d;
  --ink-soft: #50606c;
  --muted: #75818a;
  --paper: #f7f7f3;
  --paper-2: #edf1ef;
  --white: #ffffff;
  --line: rgba(23, 35, 45, .13);
  --blue: #1667cf;
  --blue-deep: #153f66;
  --cyan: #168b96;
  --amber: #b97622;
  --green: #2d7c66;
  --radius: 7px;
  --shadow: 0 24px 70px rgba(35, 48, 58, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "SF Pro Display", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}
body.nav-open { overflow: hidden; }
button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  min-height: 70px;
  background: rgba(247, 247, 243, .9);
  border-bottom: 1px solid rgba(23, 35, 45, .08);
  backdrop-filter: blur(18px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1360px, calc(100% - 56px));
  min-height: 70px;
  margin: 0 auto;
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 760; }
.brand-mark { display: grid; place-items: center; width: 35px; height: 35px; color: white; background: var(--ink); border-radius: 6px; font-size: 15px; }
.brand small { display: block; margin-top: 2px; color: #849099; font-size: 9px; font-weight: 560; }
.main-nav { display: flex; align-items: center; gap: 24px; color: #5e6b75; font-size: 13px; }
.main-nav a { position: relative; padding: 25px 0 22px; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--blue); }
.main-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--blue); }
.main-nav .nav-cta { padding: 11px 16px; color: white; background: var(--blue); border-radius: 5px; font-weight: 720; }
.main-nav .nav-cta:hover, .main-nav .nav-cta[aria-current="page"] { color: white; background: #1259b4; }
.main-nav .nav-cta::after { display: none; }
.menu-toggle { display: none; min-height: 38px; padding: 0 13px; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: 5px; font-size: 12px; font-weight: 700; }

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(900px, 92vh);
  overflow: hidden;
  color: white;
  background: #1a2329;
}
.hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(9,18,24,.82) 0%, rgba(9,18,24,.58) 42%, rgba(9,18,24,.06) 74%), linear-gradient(0deg, rgba(8,17,22,.65), transparent 58%); }
.hero-inner { position: relative; z-index: 2; width: min(1360px, calc(100% - 56px)); margin: 0 auto; padding: 170px 0 94px; }
.hero-copy { max-width: 830px; }
.eyebrow { margin: 0 0 20px; color: #77baff; font-size: 12px; font-weight: 760; text-transform: uppercase; }
.hero h1 { margin: 0; max-width: 900px; font-size: clamp(58px, 6.6vw, 100px); line-height: .98; font-weight: 680; }
.hero .lead { max-width: 670px; margin: 28px 0 0; color: rgba(255,255,255,.82); font-size: 18px; line-height: 1.75; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 22px; border: 1px solid transparent; border-radius: 5px; font-size: 14px; font-weight: 720; }
.button-primary { color: white; background: var(--blue); }
.button-primary:hover { background: #0e57b7; }
.button-light { color: var(--ink); background: rgba(255,255,255,.92); }
.button-outline { color: white; border-color: rgba(255,255,255,.48); background: rgba(15,28,36,.2); }
.hero-trust { display: flex; flex-wrap: wrap; gap: 25px; margin-top: 42px; color: rgba(255,255,255,.75); font-size: 12px; }
.hero-trust span { padding-left: 14px; border-left: 2px solid #69b4ff; }
.section-hint { position: absolute; z-index: 2; left: 50%; bottom: 20px; transform: translateX(-50%); color: rgba(255,255,255,.7); font-size: 10px; }

.page-hero { min-height: 610px; }
.page-hero .hero-inner { padding-bottom: 74px; }
.page-hero h1 { max-width: 980px; font-size: clamp(54px, 6vw, 88px); }

.section { padding: 108px 0; }
.section-soft { background: var(--paper-2); }
.section-dark { color: white; background: #152936; }
.section-warm { background: #ebe2d6; }
.inner { width: min(1260px, calc(100% - 56px)); margin: 0 auto; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 470px); gap: 70px; align-items: end; margin-bottom: 46px; }
.section-head h2 { margin: 0; max-width: 800px; font-size: clamp(40px, 4.7vw, 66px); line-height: 1.06; }
.section-head p { margin: 0; color: #65727c; font-size: 15px; line-height: 1.8; }
.section-dark .section-head p { color: #b9cad4; }
.section-intro-action { display: grid; gap: 18px; justify-items: start; }
.text-cta { padding-bottom: 4px; color: var(--blue); border-bottom: 1px solid currentColor; font-size: 13px; font-weight: 720; }
.kicker { margin: 0 0 14px; color: var(--blue); font-size: 11px; font-weight: 760; text-transform: uppercase; }

.persona-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.persona-grid-five { grid-template-columns: repeat(5, 1fr); }
.persona { min-height: 260px; padding: 30px 26px; border-right: 1px solid var(--line); }
.persona:last-child { border-right: 0; }
.persona small { color: var(--blue); font-size: 11px; font-weight: 760; }
.persona h3 { margin: 44px 0 12px; font-size: 22px; line-height: 1.28; }
.persona p { margin: 0; color: #68757f; font-size: 12px; line-height: 1.75; }
.persona a { display: inline-block; margin-top: 24px; color: var(--blue); font-size: 12px; font-weight: 720; }

.feature-split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); min-height: 620px; background: white; box-shadow: var(--shadow); }
.feature-media { position: relative; min-height: 520px; overflow: hidden; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(13,28,36,.44), transparent 55%); }
.feature-caption { position: absolute; z-index: 2; left: 26px; right: 26px; bottom: 24px; display: flex; justify-content: space-between; gap: 20px; color: white; font-size: 11px; }
.feature-copy { display: flex; flex-direction: column; justify-content: center; padding: 58px; }
.feature-copy h2 { margin: 0; font-size: clamp(42px, 4.5vw, 64px); line-height: 1.05; }
.feature-copy > p { margin: 24px 0 0; color: #62707a; font-size: 15px; line-height: 1.82; }
.feature-list { margin: 34px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { display: grid; grid-template-columns: 38px 1fr; gap: 12px; padding: 17px 0; border-bottom: 1px solid var(--line); font-size: 13px; line-height: 1.55; }
.feature-list b { color: var(--blue); font-size: 11px; }

.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tool-card { display: flex; min-height: 330px; flex-direction: column; padding: 28px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.tool-card.primary { color: white; background: var(--blue-deep); border-color: transparent; }
.tool-card small { color: var(--blue); font-size: 10px; font-weight: 760; }
.tool-card.primary small { color: #7ebeff; }
.tool-card h3 { margin: 50px 0 13px; font-size: 28px; line-height: 1.15; }
.tool-card p { margin: 0; color: #67747e; font-size: 13px; line-height: 1.75; }
.tool-card.primary p { color: #c9d8e2; }
.tool-card .meta { margin-top: auto; padding-top: 28px; color: #7b8790; font-size: 10px; }
.tool-card.primary .meta { color: #9fb7c7; }
.tool-card a { margin-top: 16px; color: var(--blue); font-size: 12px; font-weight: 720; }
.tool-card.primary a { color: white; }

.tool-select-grid { display: grid; grid-template-columns: 1.08fr 1fr 1fr; gap: 14px; }
.tool-select-card { display: flex; min-height: 520px; flex-direction: column; justify-content: space-between; padding: 30px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.tool-select-card.featured { color: white; background: var(--blue-deep); border-color: transparent; box-shadow: 0 24px 60px rgba(21,63,102,.16); }
.tool-index { display: flex; align-items: center; justify-content: space-between; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.featured .tool-index { border-color: rgba(255,255,255,.17); }
.tool-index span { color: var(--blue); font-size: 28px; font-weight: 720; }
.featured .tool-index span { color: #79bcff; }
.tool-index small { color: var(--muted); font-size: 9px; font-weight: 760; }
.featured .tool-index small { color: #b1c8d8; }
.tool-name { margin: 34px 0 0; color: var(--blue); font-size: 11px; font-weight: 760; }
.featured .tool-name { color: #83c3ff; }
.tool-select-card h3 { margin: 12px 0 18px; font-size: 28px; line-height: 1.18; }
.tool-select-card > div > p:not(.tool-name) { margin: 0; color: #68757f; font-size: 13px; line-height: 1.75; }
.featured > div > p:not(.tool-name) { color: #c4d4de; }
.tool-select-card ul { margin: 28px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.featured ul { border-color: rgba(255,255,255,.17); }
.tool-select-card li { padding: 11px 0 11px 17px; color: #5f6d77; border-bottom: 1px solid var(--line); font-size: 11px; line-height: 1.55; }
.tool-select-card li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 11px 2px -16px; background: var(--blue); border-radius: 50%; }
.featured li { color: #d3e0e7; border-color: rgba(255,255,255,.14); }
.featured li::before { background: #78bdff; }
.tool-action { display: inline-flex; align-items: center; justify-content: space-between; width: 100%; min-height: 48px; margin-top: 28px; padding: 0 16px; color: white; background: var(--blue); border-radius: 4px; font-size: 12px; font-weight: 720; }
.tool-action::after { content: "→"; font-size: 17px; }
.featured .tool-action { color: var(--ink); background: white; }
.tool-route { display: grid; grid-template-columns: 1fr 54px 1fr 54px 1fr; align-items: stretch; margin-top: 14px; }
.tool-route article { min-height: 240px; padding: 30px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.tool-route i { align-self: center; height: 1px; background: #9cb2c0; }
.tool-route b { color: var(--blue); font-size: 30px; }
.tool-route small { display: block; margin-top: 22px; color: #849099; font-size: 9px; }
.tool-route h3 { margin: 8px 0 10px; font-size: 23px; }
.tool-route p { margin: 0; color: #67747e; font-size: 12px; line-height: 1.7; }
.tool-boundary { display: grid; grid-template-columns: 150px 1fr 170px 1fr; gap: 18px; align-items: center; margin-top: 30px; padding: 22px 26px; color: #d2e0e7; background: var(--ink); border-radius: var(--radius); }
.tool-boundary strong { color: white; font-size: 12px; }
.tool-boundary span { color: #b8c8d0; font-size: 11px; line-height: 1.6; }

.case-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr; gap: 14px; }
.case-card { position: relative; min-height: 470px; overflow: hidden; color: white; background: #18252e; border-radius: var(--radius); }
.case-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.case-card:hover img { transform: scale(1.025); }
.case-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,15,20,.85), rgba(7,15,20,.04) 65%); }
.case-copy { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 24px; }
.case-copy small { color: #98cfff; font-size: 10px; }
.case-copy h3 { margin: 9px 0 8px; font-size: 24px; }
.case-copy p { margin: 0; color: rgba(255,255,255,.74); font-size: 11px; line-height: 1.6; }

.evidence-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.evidence-item { padding: 24px 22px; border-right: 1px solid var(--line); }
.evidence-item:last-child { border-right: 0; }
.evidence-item small { color: #849099; font-size: 9px; }
.evidence-item strong { display: block; margin-top: 9px; font-size: 14px; line-height: 1.45; }

.editorial-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; }
.featured-article { padding-right: 54px; border-right: 1px solid var(--line); }
.featured-article h2 { margin: 0; max-width: 760px; font-size: clamp(42px, 5vw, 68px); line-height: 1.08; }
.featured-article p { max-width: 700px; margin: 22px 0 0; color: #65727c; line-height: 1.8; }
.featured-article a { display: inline-block; margin-top: 27px; color: var(--blue); font-size: 13px; font-weight: 720; }
.topic-list { border-top: 1px solid var(--line); }
.topic { padding: 22px 0; border-bottom: 1px solid var(--line); }
.topic small { color: var(--blue); font-size: 9px; }
.topic h3 { margin: 7px 0 6px; font-size: 20px; }
.topic p { margin: 0; color: #68757f; font-size: 11px; line-height: 1.6; }

.publication-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.publication-feature { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 56px; min-height: 420px; padding: 46px; color: white; background: var(--blue-deep); border-radius: var(--radius); }
.publication-feature small, .publication-card small { color: #7dc1ff; font-size: 9px; font-weight: 760; }
.publication-feature h3 { max-width: 760px; margin: 28px 0 18px; font-size: clamp(38px, 4vw, 58px); line-height: 1.08; }
.publication-feature p { max-width: 760px; margin: 0; color: #c5d4dd; font-size: 14px; line-height: 1.85; }
.publication-feature a, .publication-card a { display: inline-block; margin-top: 28px; padding-bottom: 4px; color: white; border-bottom: 1px solid currentColor; font-size: 12px; font-weight: 720; }
.publication-feature aside { align-self: end; padding: 26px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 5px; }
.publication-feature aside b { display: block; margin-bottom: 14px; color: #8cc9ff; font-size: 10px; }
.publication-feature aside span { display: block; padding: 10px 0; color: #d8e4ea; border-top: 1px solid rgba(255,255,255,.12); font-size: 11px; }
.publication-card { min-height: 310px; padding: 30px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.publication-card small { color: var(--blue); }
.publication-card h3 { max-width: 520px; margin: 44px 0 14px; font-size: 28px; line-height: 1.18; }
.publication-card p { max-width: 540px; margin: 0; color: #65727c; font-size: 12px; line-height: 1.75; }
.publication-card a { color: var(--blue); }
.publication-more { display: flex; justify-content: center; margin-top: 30px; }
.content-path-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.content-path-grid a { min-height: 290px; padding: 30px; border-right: 1px solid var(--line); }
.content-path-grid a:last-child { border-right: 0; }
.content-path-grid small { color: var(--blue); font-size: 10px; font-weight: 760; }
.content-path-grid h3 { margin: 48px 0 14px; font-size: 25px; line-height: 1.22; }
.content-path-grid p { margin: 0; color: #66737d; font-size: 12px; line-height: 1.75; }
.content-path-grid span { display: inline-block; margin-top: 28px; color: var(--blue); font-size: 11px; font-weight: 720; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step { min-height: 230px; padding: 28px; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step b { color: var(--blue); font-size: 12px; }
.step h3 { margin: 42px 0 10px; font-size: 22px; }
.step p { margin: 0; color: #68757f; font-size: 12px; line-height: 1.72; }

.contact-band { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 56px; align-items: center; padding: 48px; background: #e9dfd1; border-radius: var(--radius); }
.contact-band h2 { margin: 0; max-width: 760px; font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(36px, 4vw, 58px); font-weight: 500; line-height: 1.15; }
.contact-band p { margin: 18px 0 0; color: #6a6259; font-size: 13px; line-height: 1.8; }
.contact-compact { display: grid; grid-template-columns: 118px 1fr; gap: 18px; align-items: center; padding-left: 34px; border-left: 1px solid rgba(69,56,42,.2); }
.contact-compact img { width: 118px; height: 118px; padding: 6px; object-fit: cover; background: white; border-radius: 5px; }
.contact-compact strong { display: block; font-size: 15px; }
.contact-compact span { display: block; margin-top: 8px; color: #71685f; font-size: 11px; line-height: 1.65; }

.contact-layout { display: grid; grid-template-columns: minmax(0, 1fr) 430px; gap: 80px; align-items: start; }
.contact-intro h1 { margin: 0; max-width: 780px; font-size: clamp(54px, 6.2vw, 90px); line-height: 1; }
.contact-intro > p { max-width: 690px; margin: 26px 0 0; color: #62707a; font-size: 16px; line-height: 1.85; }
.contact-qr { padding: 32px; background: white; box-shadow: var(--shadow); }
.contact-qr img { width: min(100%, 330px); margin: 0 auto; }
.contact-qr h2 { margin: 24px 0 8px; font-size: 22px; }
.contact-qr p { margin: 0; color: #68757f; font-size: 12px; line-height: 1.7; }
.copy-line { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }
.copy-button { min-height: 40px; padding: 0 14px; color: white; background: var(--blue); border: 0; border-radius: 4px; font-size: 11px; font-weight: 720; cursor: pointer; }
.copy-feedback { color: #68757f; font-size: 11px; }
.material-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 40px; }
.material-group { padding: 22px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.material-group small { color: var(--blue); font-size: 9px; }
.material-group h3 { margin: 8px 0 9px; font-size: 17px; }
.material-group p { margin: 0; color: #6c7881; font-size: 11px; line-height: 1.7; }

.case-story-hero { min-height: 720px; }
.case-story-hero > img { object-position: center 58%; }
.case-story-meta { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.case-story-meta span { padding: 8px 11px; color: #dbe7ed; background: rgba(8,19,26,.5); border: 1px solid rgba(255,255,255,.2); border-radius: 4px; font-size: 10px; }
.case-story-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 80px; align-items: start; }
.case-story-intro h2 { margin: 0; max-width: 820px; font-size: clamp(44px, 5vw, 72px); line-height: 1.05; }
.case-story-intro p { margin: 24px 0 0; color: #62707a; font-size: 15px; line-height: 1.9; }
.case-boundary { padding: 28px; color: #d7e5eb; background: var(--ink); border-radius: var(--radius); }
.case-boundary small { color: #66b8ff; font-size: 9px; }
.case-boundary strong { display: block; margin-top: 11px; color: white; font-size: 20px; }
.case-boundary p { margin-top: 12px; color: #b4c5ce; font-size: 12px; line-height: 1.75; }
.case-status-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 54px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-status-item { min-height: 128px; padding: 26px 24px; border-right: 1px solid var(--line); }
.case-status-item:first-child { padding-left: 0; }
.case-status-item:last-child { border-right: 0; }
.case-status-item small { color: var(--blue); font-size: 9px; }
.case-status-item strong { display: block; margin-top: 12px; font-size: 17px; line-height: 1.45; }
.fft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 42px; }
.fft-figure { margin: 0; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.fft-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center top; }
.fft-figure figcaption { padding: 20px; }
.fft-figure small { color: var(--blue); font-size: 9px; }
.fft-figure strong { display: block; margin-top: 8px; font-size: 18px; }
.fft-figure p { margin: 9px 0 0; color: #67747e; font-size: 11px; line-height: 1.7; }
.reading-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 34px; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); }
.reading { min-height: 210px; padding: 28px; background: #fff; }
.reading b { color: var(--blue); font-size: 10px; }
.reading h3 { margin: 18px 0 11px; font-size: 22px; }
.reading p { margin: 0; color: #66737d; font-size: 12px; line-height: 1.8; }
.case-proof { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 72px; align-items: center; }
.case-proof h2 { margin: 0; max-width: 790px; font-size: clamp(42px, 5vw, 70px); line-height: 1.05; }
.case-proof > div > p { margin: 22px 0 0; color: #bdcbd2; font-size: 14px; line-height: 1.85; }
.case-proof img { width: 100%; min-height: 320px; object-fit: cover; border-radius: var(--radius); }
.evidence-list { margin: 34px 0 0; padding: 0; list-style: none; }
.evidence-list li { display: grid; grid-template-columns: 36px 1fr; gap: 14px; padding: 15px 0; color: #d3dfe5; border-top: 1px solid rgba(255,255,255,.14); font-size: 12px; line-height: 1.65; }
.evidence-list b { color: #67b8ff; }

.social-proof-section { border-top: 1px solid var(--line); }
.social-proof-head { display: grid; grid-template-columns: 1fr 440px; gap: 54px; align-items: end; }
.social-proof-head h2 { margin: 0; max-width: 780px; font-size: clamp(42px, 5vw, 70px); line-height: 1.06; }
.social-proof-head p { margin: 0; color: #65727c; font-size: 13px; line-height: 1.8; }
.social-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 40px; }
.social-link { min-height: 150px; padding: 23px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.social-link b { display: grid; place-items: center; width: 36px; height: 36px; color: white; background: var(--ink); border-radius: 5px; font-size: 10px; }
.platform-logo { display: grid !important; place-items: center; width: 46px; height: 46px; margin: 0 !important; background: #f5f7f6; border: 1px solid rgba(23,35,45,.08); border-radius: 7px; }
.platform-logo img { width: 27px; height: 27px; object-fit: contain; }
.social-link strong { display: block; margin-top: 22px; font-size: 16px; }
.social-link span { display: block; margin-top: 7px; color: #74808a; font-size: 10px; line-height: 1.55; }
a.social-link:hover { border-color: #8ab8e9; box-shadow: 0 12px 30px rgba(22,48,66,.08); }

.article-hero { min-height: 700px; }
.article-hero .hero-copy { max-width: 870px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 90px; align-items: start; }
.article-body { max-width: 820px; }
.article-body .article-lead { margin: 0 0 52px; color: #45545f; font-size: 22px; line-height: 1.75; }
.article-body section { padding: 48px 0; border-top: 1px solid var(--line); }
.article-body h2 { margin: 0 0 22px; font-size: clamp(34px, 4vw, 52px); line-height: 1.12; }
.article-body h3 { margin: 32px 0 13px; font-size: 23px; }
.article-body p { margin: 16px 0 0; color: #5f6d77; font-size: 16px; line-height: 1.95; }
.article-body ul { margin: 24px 0 0; padding-left: 20px; color: #53616b; }
.article-body li { margin: 12px 0; padding-left: 6px; line-height: 1.8; }
.article-callout { margin: 34px 0; padding: 28px 30px; color: #d9e8ee; background: var(--ink); border-radius: var(--radius); }
.article-callout strong { display: block; color: white; font-size: 20px; }
.article-callout p { margin-top: 10px; color: #c1d0d7; font-size: 13px; }
.article-aside { position: sticky; top: 105px; padding: 26px; background: #f0f3f2; border: 1px solid var(--line); border-radius: var(--radius); }
.article-aside small { color: var(--blue); font-size: 9px; }
.article-aside strong { display: block; margin: 12px 0 18px; font-size: 20px; }
.article-aside a { display: block; padding: 11px 0; color: #60707a; border-top: 1px solid var(--line); font-size: 12px; }
.article-aside a:hover { color: var(--blue); }
.decision-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 30px; }
.decision-item { min-height: 160px; padding: 24px; background: #f1f4f3; border-radius: var(--radius); }
.decision-item small { color: var(--blue); font-size: 9px; }
.decision-item strong { display: block; margin-top: 13px; font-size: 18px; }
.decision-item p { margin-top: 9px; font-size: 12px; line-height: 1.75; }

.footer { padding: 58px 0 30px; color: #9ca8b0; background: #132631; }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 50px; }
.footer h3 { margin: 0; color: white; font-size: 18px; }
.footer p { max-width: 420px; margin: 13px 0 0; font-size: 11px; line-height: 1.7; }
.footer strong { display: block; margin-bottom: 14px; color: white; font-size: 11px; }
.footer a { display: block; margin-top: 9px; font-size: 11px; }
.footer a:hover { color: white; }
.footer-bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 10px; }

@media (max-width: 1080px) {
  .main-nav { gap: 14px; }
  .section-head { grid-template-columns: 1fr; gap: 18px; }
  .persona-grid { grid-template-columns: repeat(2, 1fr); }
  .persona:nth-child(2) { border-right: 0; }
  .persona:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .persona-grid-five .persona { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .persona-grid-five .persona:nth-child(2n) { border-right: 0; }
  .persona-grid-five .persona:last-child { border-right: 0; border-bottom: 0; }
  .feature-split { grid-template-columns: 1fr; }
  .feature-copy { padding: 46px; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .case-card:first-child { grid-column: 1 / -1; }
  .contact-band { grid-template-columns: 1fr; }
  .contact-compact { padding: 28px 0 0; border-left: 0; border-top: 1px solid rgba(69,56,42,.2); }
  .case-story-intro, .case-proof { grid-template-columns: 1fr; gap: 44px; }
  .fft-grid { grid-template-columns: 1fr 1fr; }
  .fft-figure:first-child { grid-column: 1 / -1; }
  .social-links { grid-template-columns: repeat(3, 1fr); }
  .tool-select-grid { grid-template-columns: 1fr 1fr; }
  .tool-select-card.featured { grid-column: 1 / -1; }
  .publication-feature { grid-template-columns: minmax(0, 1fr) 280px; }
  .article-layout { grid-template-columns: minmax(0, 1fr) 250px; gap: 50px; }
}

@media (max-width: 820px) {
  .nav-shell { width: calc(100% - 32px); }
  .menu-toggle { display: inline-flex; align-items: center; }
  .main-nav { position: fixed; inset: 70px 0 auto; display: none; align-items: stretch; flex-direction: column; gap: 0; padding: 18px 16px 24px; background: rgba(247,247,243,.98); border-bottom: 1px solid var(--line); box-shadow: 0 18px 35px rgba(23,35,45,.12); }
  body.nav-open .main-nav { display: flex; }
  .main-nav a { padding: 13px 8px; border-bottom: 1px solid var(--line); }
  .main-nav a[aria-current="page"]::after { display: none; }
  .main-nav .nav-cta { margin-top: 12px; border-bottom: 0; text-align: center; }
  .hero { min-height: 760px; align-items: flex-start; }
  .hero > img { object-position: 56% center; }
  .hero::after { background: linear-gradient(180deg, rgba(7,16,22,.88) 0%, rgba(7,16,22,.64) 54%, rgba(7,16,22,.18) 100%); }
  .hero-inner { width: calc(100% - 32px); padding: 110px 0 44px; }
  .hero h1 { font-size: 53px; line-height: 1.03; }
  .hero .lead { font-size: 15px; }
  .button-row { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-trust { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 12px; }
  .page-hero { min-height: 760px; }
  .section { padding: 78px 0; }
  .inner { width: calc(100% - 28px); }
  .section-head h2 { font-size: 41px; }
  .persona-grid, .tool-grid, .case-grid, .steps, .evidence-strip, .editorial-grid, .contact-layout, .material-groups, .footer-grid, .case-status-grid, .fft-grid, .reading-grid, .social-proof-head, .social-links, .article-layout, .decision-grid { grid-template-columns: 1fr; }
  .tool-select-grid, .publication-grid, .publication-feature, .content-path-grid { grid-template-columns: 1fr; }
  .tool-select-card.featured, .publication-feature { grid-column: auto; }
  .tool-select-card { min-height: auto; padding: 24px; }
  .tool-select-card h3 { font-size: 25px; }
  .tool-route { grid-template-columns: 1fr; gap: 10px; }
  .tool-route i { width: 1px; height: 24px; margin: 0 auto; }
  .tool-route article { min-height: auto; padding: 24px; }
  .tool-boundary { grid-template-columns: 1fr; gap: 8px; padding: 22px; }
  .tool-boundary strong:not(:first-child) { margin-top: 14px; }
  .publication-feature { gap: 30px; min-height: auto; padding: 28px 22px; }
  .publication-feature h3 { font-size: 37px; }
  .publication-card { min-height: auto; padding: 26px 22px; }
  .content-path-grid a { min-height: auto; padding: 26px 8px; border-right: 0; border-bottom: 1px solid var(--line); }
  .content-path-grid a:last-child { border-bottom: 0; }
  .content-path-grid h3 { margin-top: 28px; }
  .persona { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); }
  .persona:last-child { border-bottom: 0; }
  .feature-split { box-shadow: none; }
  .feature-media { min-height: 420px; }
  .feature-copy { padding: 34px 22px; }
  .feature-copy h2 { font-size: 40px; }
  .case-card:first-child { grid-column: auto; }
  .case-card { min-height: 390px; }
  .evidence-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .evidence-item:last-child { border-bottom: 0; }
  .featured-article { padding: 0 0 40px; border-right: 0; border-bottom: 1px solid var(--line); }
  .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .contact-band { padding: 30px 22px; }
  .contact-compact { grid-template-columns: 98px 1fr; }
  .contact-compact img { width: 98px; height: 98px; }
  .contact-layout { gap: 48px; }
  .contact-intro h1 { font-size: 54px; }
  .copy-line { align-items: stretch; flex-direction: column; }
  .copy-button { width: 100%; }
  .case-story-hero { min-height: 820px; }
  .case-story-intro h2, .case-proof h2 { font-size: 43px; }
  .case-status-item { min-height: auto; padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .case-status-item:last-child { border-bottom: 0; }
  .fft-figure:first-child { grid-column: auto; }
  .case-proof img { min-height: 240px; }
  .social-link { min-height: 120px; }
  .article-hero { min-height: 780px; }
  .article-body .article-lead { font-size: 19px; }
  .article-body p { font-size: 15px; }
  .article-aside { position: static; }
}

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