/* ============================================================
   探索科技 官网样式
   设计语言参考: web/DESIGN.md (Vodafone-inspired)
   - 主色: #E60012 (品牌红)  深色: #25282b (墨)  白底: #ffffff
   - 大字号无衬线显示字 + 胶囊形 CTA + 暗/亮双段节奏
   ============================================================ */

:root {
  --color-primary: #E60012;
  --color-primary-hover: #c50010;
  --color-on-primary: #ffffff;
  --color-ink: #25282b;
  --color-body: #5a5d62;
  --color-mute: #bebebe;
  --color-canvas: #ffffff;
  --color-canvas-soft: #f4f4f5;
  --color-canvas-softer: #fafafa;
  --color-line: #e5e7eb;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255, 255, 255, 0.65);

  --radius-sm: 6px;
  --radius-card: 6px;
  --radius-pill-md: 32px;
  --radius-pill-lg: 60px;
  --radius-full: 9999px;

  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-4xl: 48px;
  --space-5xl: 64px;
  --space-6xl: 96px;

  --container-max: 1320px;
  --nav-height: 72px;

  --font-cn: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-primary); }
ul { padding: 0; margin: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: clamp(20px, 4vw, 48px);
  padding-right: clamp(20px, 4vw, 48px);
}
.section { padding: clamp(56px, 9vw, 112px) 0; }
.section--soft { background: var(--color-canvas-soft); }
.section--dark { background: var(--color-ink); color: var(--color-on-dark); }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin: 0 0 var(--space-lg);
  color: var(--color-ink);
}
.section--dark .section-title { color: var(--color-on-dark); }
.section-lead {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.7;
  color: var(--color-body);
  max-width: 760px;
  margin: 0 0 var(--space-4xl);
}
.section--dark .section-lead { color: var(--color-on-dark-mute); }
.section-head { margin-bottom: var(--space-4xl); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-pill-lg);
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: #fff; }
.btn--outline-red {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline-red:hover { background: var(--color-primary); color: #fff; }
.btn--outline-dark {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn--outline-dark:hover { background: var(--color-ink); color: #fff; }
.btn--outline-light {
  background: transparent;
  color: var(--color-on-dark);
  border-color: var(--color-on-dark);
}
.btn--outline-light:hover { background: var(--color-on-dark); color: var(--color-ink); }
.btn--arrow::after { content: "→"; margin-left: 4px; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-ink);
  color: var(--color-on-dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}
.nav__brand img { height: 36px; width: auto; }
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 36px);
}
.nav__link {
  font-size: 15px;
  color: var(--color-on-dark);
  padding: 8px 4px;
  position: relative;
}
.nav__link:hover { color: #fff; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--color-primary);
}
.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px; height: 40px;
  padding: 0;
  color: #fff;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 5px auto;
  transition: transform .25s ease, opacity .25s ease;
}
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--color-ink);
  color: var(--color-on-dark);
  overflow: hidden;
  padding: clamp(80px, 12vw, 160px) 0 clamp(80px, 10vw, 140px);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 600px at 88% -10%, rgba(230,0,18,0.35), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(230,0,18,0.18), transparent 65%),
    linear-gradient(180deg, #1d1f22 0%, #25282b 100%);
  z-index: 0;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000 30%, transparent 80%);
  z-index: 0;
}
.hero__inner { position: relative; z-index: 1; }
.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-primary);
  margin-bottom: var(--space-2xl);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -1.5px;
  margin: 0 0 var(--space-2xl);
}
.hero__title em { color: var(--color-primary); font-style: normal; }
.hero__sub {
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.7;
  color: var(--color-on-dark-mute);
  max-width: 720px;
  margin: 0 0 var(--space-4xl);
}
.hero__ctas { display: flex; flex-wrap: wrap; gap: 16px; }

.hero__pills {
  margin-top: clamp(40px, 7vw, 72px);
  display: flex; flex-wrap: wrap; gap: 12px;
}
.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-pill-md);
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.04);
}
.hero__pill::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ---------- Service tiles (home) ---------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.tile {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.tile:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 14px 32px rgba(37,40,43,0.08);
}
.tile__num {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
}
.tile__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0;
}
.tile__desc {
  color: var(--color-body);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}
.tile__more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  display: inline-block;
  padding-bottom: 2px;
  align-self: flex-start;
}
.tile__more:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ---------- Solutions row (home) ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.sol-card {
  background: var(--color-ink);
  color: var(--color-on-dark);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  min-height: 260px;
  display: flex;
  flex-direction: column;
}
.sol-card::before {
  content: "";
  position: absolute;
  inset: auto -40px -60px auto;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(230,0,18,0.45) 0%, transparent 70%);
  pointer-events: none;
}
.sol-card__tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.sol-card__title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 12px;
  position: relative;
  z-index: 1;
}
.sol-card__desc {
  color: var(--color-on-dark-mute);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 24px;
  position: relative;
  z-index: 1;
}
.sol-card__list {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: auto;
  position: relative; z-index: 1;
}
.sol-card__list span {
  font-size: 13px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-pill-md);
}

/* ---------- Stats band ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1px;
  color: var(--color-primary);
}
.stat__label {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-body);
}
.section--dark .stat__label { color: var(--color-on-dark-mute); }

/* ---------- Client / Partner logo wall ---------- */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.logo-wall__item {
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 110px;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 600;
  color: #4b4e53;
  text-align: center;
  transition: background .2s ease, color .2s ease;
}
.logo-wall__item:hover { background: var(--color-canvas-soft); color: var(--color-primary); }

/* ---------- Client groups (by industry) ---------- */
.client-group { margin-bottom: 40px; }
.client-group:last-child { margin-bottom: 0; }
.client-group__label {
  display: inline-block;
  padding: 6px 14px;
  background: var(--color-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-pill-md);
  margin-bottom: 18px;
}

/* ---------- CTA strip ---------- */
.cta-strip {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: clamp(56px, 8vw, 96px) 0;
}
.cta-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.cta-strip__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0;
  max-width: 760px;
}
.cta-strip__btn {
  background: #fff;
  color: var(--color-ink);
  padding: 16px 36px;
  font-size: 17px;
  border-radius: var(--radius-pill-lg);
  font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
}
.cta-strip__btn:hover { background: var(--color-ink); color: #fff; }

/* ---------- Footer ---------- */
.footer {
  background: #1a1c1f;
  color: var(--color-on-dark);
  padding: 72px 0 24px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer__brand img { height: 40px; margin-bottom: 20px; }
.footer__about {
  color: var(--color-on-dark-mute);
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}
.footer__col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 18px;
  color: #fff;
}
.footer__col li { margin-bottom: 10px; font-size: 14px; }
.footer__col a { color: var(--color-on-dark-mute); }
.footer__col a:hover { color: #fff; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--color-on-dark-mute);
}
.footer__bottom a { color: var(--color-on-dark-mute); }
.footer__bottom a:hover { color: #fff; }

/* ---------- Subpage header (about / services / contact) ---------- */
.page-head {
  background: var(--color-ink);
  color: var(--color-on-dark);
  padding: clamp(80px, 11vw, 140px) 0 clamp(64px, 9vw, 112px);
  position: relative;
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 500px at 100% 0%, rgba(230,0,18,0.28), transparent 60%),
    linear-gradient(180deg, #1d1f22 0%, #25282b 100%);
}
.page-head__inner { position: relative; }
.page-head__crumb {
  font-size: 13px;
  color: var(--color-on-dark-mute);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.page-head__title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -1px;
  margin: 0 0 20px;
}
.page-head__sub {
  font-size: clamp(15px, 1.3vw, 19px);
  color: var(--color-on-dark-mute);
  line-height: 1.7;
  max-width: 720px;
  margin: 0;
}

/* ---------- About page ---------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.intro-text p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-body);
  margin: 0 0 18px;
}
.values { display: flex; flex-direction: column; gap: 20px; }
.value-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
}
.value-row__label {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
}
.value-row__body { color: var(--color-body); font-size: 15px; line-height: 1.7; }

.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--color-line);
}
.timeline__item {
  position: relative;
  padding-bottom: 40px;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -32px; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(230,0,18,0.15);
}
.timeline__date {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.timeline__title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.timeline__body { color: var(--color-body); font-size: 15px; line-height: 1.7; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.cert-item {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color .2s ease, transform .2s ease;
}
.cert-item:hover { border-color: var(--color-primary); transform: translateY(-3px); }
.cert-item__mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(230,0,18,0.1);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
}
.cert-item__name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.cert-item__sub { color: var(--color-body); font-size: 13px; }

/* ---------- Services page ---------- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
  padding: clamp(48px, 7vw, 88px) 0;
  border-bottom: 1px solid var(--color-line);
}
.service-block:last-child { border-bottom: 0; }
.service-block--reverse .service-block__intro { order: 2; }
.service-block__num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 3px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.service-block__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0 0 18px;
}
.service-block__desc {
  color: var(--color-body);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 24px;
}
.feature-list { display: grid; gap: 16px; }
.feature-item {
  background: var(--color-canvas-softer);
  border-left: 3px solid var(--color-primary);
  border-radius: 4px;
  padding: 18px 22px;
}
.feature-item__title {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 6px;
}
.feature-item__body {
  color: var(--color-body);
  font-size: 14.5px;
  line-height: 1.7;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.product-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.product-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37,40,43,0.08);
}
.product-card__brand {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 10px;
  background: rgba(230,0,18,0.08);
  color: var(--color-primary);
  border-radius: var(--radius-pill-md);
  margin-bottom: 14px;
}
.product-card__title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
}
.product-card__desc {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.7;
  margin: 0;
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
}
.contact-item__icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  font-weight: 700;
}
.contact-item__label {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--color-body);
  margin-bottom: 4px;
}
.contact-item__value {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
}
.contact-item__value a:hover { color: var(--color-primary); }

.contact-form {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  padding: 36px;
}
.contact-form h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
}
.contact-form p {
  color: var(--color-body);
  margin: 0 0 24px;
  font-size: 14.5px;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 6px;
  color: var(--color-ink);
}
.form-row input, .form-row textarea, .form-row select {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  color: var(--color-ink);
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--color-ink);
  box-shadow: 0 0 0 3px rgba(230,0,18,0.1);
}
.form-row textarea { min-height: 120px; resize: vertical; }
.form-actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; }
.form-note { font-size: 12px; color: var(--color-body); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-block { grid-template-columns: 1fr; gap: 28px; }
  .service-block--reverse .service-block__intro { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .nav__toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav__links {
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--color-ink);
    flex-direction: column;
    gap: 0;
    padding: 8px 0 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .nav__links a {
    width: 100%;
    padding: 14px clamp(20px, 4vw, 48px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .nav.is-open .nav__links {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav__cta .btn { display: none; }
  .hero__pills { display: none; }
  .footer__grid { grid-template-columns: 1fr; }
  .cta-strip__inner { flex-direction: column; align-items: flex-start; }
}