/* ============================================================
   组件与构成样式 · 点胶机公司官网
   ============================================================ */

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.9rem 1.5rem;
  min-height: 48px;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .04em;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  background: transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.btn .arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn:hover .arrow { transform: translateX(4px); }

.btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.btn-accent:hover { background: var(--color-accent-ink); border-color: var(--color-accent-ink); }

.btn-ghost { border-color: var(--color-border); }
.btn-ghost:hover { border-color: var(--color-ink); }

.btn-block { width: 100%; justify-content: center; }

/* 文本链接 + 下划线扫过 */
.link-sweep {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .03em;
  color: var(--color-ink);
  padding-bottom: 2px;
}
.link-sweep::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.link-sweep:hover::after { transform: scaleX(1); }
.link-sweep .arrow { transition: transform var(--dur-fast) var(--ease-out); }
.link-sweep:hover .arrow { transform: translateX(3px); }

/* ============================================================
   顶部工具条 + 导航（由 chrome.js 注入）
   ============================================================ */
.topbar {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .08em;
  color: var(--color-on-blue-mut);
  background: var(--color-blueprint-2);
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 36px;
}
.topbar a { color: var(--color-on-blue-mut); }
.topbar a:hover { color: var(--color-on-blue); }
.topbar__hot { color: var(--color-accent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(242, 239, 232, .86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: -.02em;
  color: var(--color-ink);
}
.brand__mark {
  width: 30px; height: 30px;
  border: 1.5px solid var(--color-ink);
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  position: relative;
  flex: none;
}
.brand__mark::before {
  content: "";
  width: 10px; height: 10px;
  background: var(--color-accent);
  border-radius: 1px;
}
.brand small {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .12em;
  color: var(--color-muted);
  display: block;
  font-weight: 400;
  margin-top: -2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav__link {
  position: relative;
  padding: .6rem .8rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .03em;
  color: var(--color-ink);
  border-radius: var(--radius-sm);
}
.nav__link::after {
  content: "";
  position: absolute; left: .8rem; right: .8rem; bottom: .4rem;
  height: 2px; background: var(--color-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--color-ink); }

.nav__cta { margin-left: var(--space-2); }

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  align-items: center; justify-content: center;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  display: block;
  width: 20px; height: 2px;
  background: var(--color-ink);
  position: relative;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}
.nav__toggle span::before { position: absolute; top: -6px; }
.nav__toggle span::after  { position: absolute; top: 6px; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__toggle span::after  { transform: translateY(-6px) rotate(-45deg); }

/* 移动端抽屉 */
@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base);
  }
  .nav.is-open .nav__links { transform: none; opacity: 1; pointer-events: auto; }
  .nav__link { padding: 1rem; font-size: 1rem; border-bottom: 1px solid var(--color-border-2); }
  .nav__link::after { display: none; }
  .nav__cta { margin: var(--space-3) 0 0; }
  .nav__cta .btn { width: 100%; justify-content: center; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding-block: var(--space-7) var(--space-6);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: var(--space-6);
  align-items: center;
}
.hero__title {
  font-size: var(--fs-hero);
  line-height: .96;
  letter-spacing: -.03em;
}
.hero__title .accent { color: var(--color-accent); }
.hero__lead {
  font-size: var(--fs-lead);
  color: var(--color-muted);
  margin-top: var(--space-4);
  max-width: 46ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.hero__meta {
  margin-top: var(--space-5);
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.hero__meta dt {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .14em;
  color: var(--color-muted);
  text-transform: uppercase;
}
.hero__meta dd {
  font-family: var(--font-display-num);
  font-size: 1.8rem;
  line-height: 1;
  margin-top: 4px;
}

/* hero 右侧蓝图 */
.hero__viz {
  position: relative;
  border: 1px solid var(--color-border);
  background:
    linear-gradient(var(--color-grid-strong) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, var(--color-grid-strong) 1px, transparent 1px) 0 0 / 28px 28px,
    var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-2);
}
.hero__viz svg { width: 100%; height: auto; }
.hero__viz .tag {
  position: absolute;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .08em;
  color: var(--color-blueprint);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.hero__viz .tag--tl { top: 12px; left: 12px; }
.hero__viz .tag--br { bottom: 12px; right: 12px; color: var(--color-accent-ink); border-color: var(--color-accent); }

/* SVG 蓝图描边 */
.bp-stroke { fill: none; stroke: var(--color-blueprint); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.bp-stroke-thin { fill: none; stroke: var(--color-blueprint); stroke-width: .8; opacity: .6; }
.bp-accent { fill: none; stroke: var(--color-accent); stroke-width: 1.8; stroke-linecap: round; }
.bp-fill { fill: rgba(22,49,76,.05); stroke: var(--color-blueprint); stroke-width: 1.2; }
.bp-dot { fill: var(--color-accent); }
.bp-label { fill: var(--color-blueprint); font-family: var(--font-mono); font-size: 9px; letter-spacing: .06em; }
.bp-label-accent { fill: var(--color-accent-ink); font-family: var(--font-mono); font-size: 9px; font-weight: 700; }

/* hero 入场序列（错峰） */
.hero [data-reveal] { opacity: 0; transform: translateY(26px); }
.hero.loaded [data-reveal] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .hero.loaded [data-reveal] {
    transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  }
  .hero.loaded [data-reveal="1"] { transition-delay: 60ms; }
  .hero.loaded [data-reveal="2"] { transition-delay: 160ms; }
  .hero.loaded [data-reveal="3"] { transition-delay: 260ms; }
  .hero.loaded [data-reveal="4"] { transition-delay: 360ms; }
  .hero.loaded [data-reveal="5"] { transition-delay: 460ms; }
}

/* ============================================================
   跑马灯 / 信任带
   ============================================================ */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--color-border);
  background: var(--color-surface);
  padding-block: var(--space-3);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  gap: var(--space-6);
  width: max-content;
  animation: marquee 32s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .06em;
  color: var(--color-muted);
  white-space: nowrap;
}
.marquee__item::before {
  content: ""; width: 6px; height: 6px;
  background: var(--color-accent); border-radius: 50%; flex: none;
}
.marquee__item b { color: var(--color-ink); font-weight: 600; }
@keyframes marquee { to { transform: translateX(-50%); } }

.trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-5);
}
.trust__cell {
  background: var(--color-surface);
  padding: var(--space-4);
}
.trust__num {
  font-family: var(--font-display-num);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--color-ink);
}
.trust__num span { color: var(--color-accent); }
.trust__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: var(--space-2);
}

/* ============================================================
   卡片通用
   ============================================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  position: relative;
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: var(--color-ink);
}

/* 核心能力 */
.caps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.cap__no {
  font-family: var(--font-display-num);
  font-size: 2.2rem;
  color: var(--color-border);
  line-height: 1;
}
.cap__icon {
  width: 44px; height: 44px;
  margin: var(--space-3) 0;
  color: var(--color-accent);
}
.cap__icon svg { width: 100%; height: 100%; }
.cap h3 { font-size: var(--fs-h3); margin-bottom: var(--space-2); }
.cap p { color: var(--color-muted); font-size: var(--fs-small); }

/* 产品预览卡 */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.prod-card { display: flex; flex-direction: column; }
.prod-card__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
}
.prod-card__name { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; }
.prod-card__cat {
  font-family: var(--font-mono); font-size: .65rem; letter-spacing: .1em;
  color: var(--color-accent-ink); text-transform: uppercase;
}
.prod-card__desc { color: var(--color-muted); font-size: var(--fs-small); flex: 1; }
.spec {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
}
.spec dt { color: var(--color-muted); }
.spec dd { color: var(--color-ink); text-align: right; font-variant-numeric: tabular-nums; }
.prod-card .link-sweep { margin-top: var(--space-4); align-self: flex-start; }

/* 应用四宫格 */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.app-tile {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-surface);
  overflow: hidden;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: border-color var(--dur-base), transform var(--dur-base) var(--ease-out);
}
.app-tile::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(160deg, transparent 40%, rgba(22,49,76,.06));
  opacity: 0; transition: opacity var(--dur-base);
}
.app-tile:hover { transform: translateY(-4px); border-color: var(--color-ink); }
.app-tile:hover::before { opacity: 1; }
.app-tile__no {
  font-family: var(--font-mono); font-size: .65rem; letter-spacing: .1em;
  color: var(--color-accent-ink);
}
.app-tile h3 { font-size: 1.25rem; margin-top: var(--space-2); }
.app-tile p { font-size: var(--fs-small); color: var(--color-muted); margin-top: var(--space-2); }

/* ============================================================
   深色蓝图数据 band
   ============================================================ */
.band-blue {
  background:
    radial-gradient(60rem 30rem at 80% -20%, rgba(255,90,31,.12), transparent 60%),
    linear-gradient(180deg, var(--color-blueprint), var(--color-blueprint-2));
  color: var(--color-on-blue);
  position: relative;
  overflow: hidden;
}
.band-blue::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(220,231,242,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220,231,242,.05) 1px, transparent 1px);
  background-size: 40px 40px;
}
.band-blue .container { position: relative; z-index: 1; }
.band-blue .eyebrow { color: var(--color-on-blue-mut); }
.band-blue .eyebrow::before { background: var(--color-accent); }
.band-blue h2 { color: var(--color-on-blue); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.stat__num {
  font-family: var(--font-display-num);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  color: #fff;
  line-height: 1;
}
.stat__num span { color: var(--color-accent); }
.stat__label {
  font-family: var(--font-mono); font-size: var(--fs-micro);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-on-blue-mut); margin-top: var(--space-2);
}
.stat { border-left: 1px solid rgba(220,231,242,.18); padding-left: var(--space-4); }

/* CTA band */
.cta {
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background:
    radial-gradient(40rem 20rem at 100% 0%, rgba(255,90,31,.08), transparent 60%),
    var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.cta h2 { max-width: 18ch; }
.cta p { color: var(--color-muted); margin-top: var(--space-3); }
.cta__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ============================================================
   页脚（由 chrome.js 注入）
   ============================================================ */
.site-footer {
  background: var(--color-blueprint-2);
  color: var(--color-on-blue-mut);
  border-top: 3px solid var(--color-accent);
  position: relative;
  z-index: 1;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-5);
  padding-block: var(--space-6);
}
.footer__brand .brand { color: var(--color-on-blue); }
.footer__brand .brand__mark { border-color: var(--color-on-blue); }
.footer__brand .brand__mark::before { background: var(--color-accent); }
.footer__brand p { font-size: var(--fs-small); margin-top: var(--space-3); max-width: 34ch; }
.footer__col h4 {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--color-on-blue); margin-bottom: var(--space-3);
}
.footer__col ul { display: grid; gap: var(--space-2); }
.footer__col a { font-size: var(--fs-small); color: var(--color-on-blue-mut); }
.footer__col a:hover { color: var(--color-accent); }
.footer__contact li { display: flex; gap: var(--space-2); font-size: var(--fs-small); }
.footer__contact .k { color: var(--color-on-blue); font-family: var(--font-mono); font-size: .65rem; min-width: 3.5em; padding-top: 2px; }
.footer__bottom {
  border-top: 1px solid rgba(220,231,242,.12);
  padding-block: var(--space-4);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-2);
  font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: .06em;
}

/* ============================================================
   页面通用页头（子页面）
   ============================================================ */
.page-hero {
  padding-block: var(--space-7) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.page-hero h1 { font-size: var(--fs-h1); margin-top: var(--space-3); max-width: 20ch; }
.page-hero p { color: var(--color-muted); margin-top: var(--space-3); max-width: 56ch; }
.breadcrumb {
  font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: .1em;
  color: var(--color-muted); text-transform: uppercase;
}
.breadcrumb a:hover { color: var(--color-accent); }

/* ============================================================
   产品中心：筛选 + 网格
   ============================================================ */
.filterbar {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.filter {
  font-family: var(--font-mono); font-size: var(--fs-small);
  padding: .55rem 1rem; min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  background: var(--color-surface);
  transition: all var(--dur-fast) var(--ease-out);
}
.filter:hover { border-color: var(--color-ink); }
.filter.is-active { background: var(--color-ink); color: var(--color-bg); border-color: var(--color-ink); }
.filterbar__count { margin-left: auto; align-self: center; font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--color-muted); }

.prod-grid--full { grid-template-columns: repeat(3, 1fr); }
.prod-card[hidden] { display: none; }

/* featured 大卡 */
.featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background:
    radial-gradient(30rem 18rem at 100% 0%, rgba(255,90,31,.07), transparent 60%),
    var(--color-surface);
  margin-bottom: var(--space-6);
}
.featured__viz {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(var(--color-grid-strong) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--color-grid-strong) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--color-bg);
  padding: var(--space-4);
}
.featured ul { display: grid; gap: var(--space-2); margin-top: var(--space-3); }
.featured li { display: flex; gap: var(--space-2); font-size: var(--fs-small); color: var(--color-muted); }
.featured li::before { content: "▸"; color: var(--color-accent); }

/* ============================================================
   行业应用页：行业 block
   ============================================================ */
.ind-block {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.ind-block:nth-child(even) { grid-template-columns: 1.1fr .9fr; }
.ind-block:nth-child(even) .ind-block__viz { order: 2; }
.ind-block__viz {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(var(--color-grid-strong) 1px, transparent 1px) 0 0 / 26px 26px,
    linear-gradient(90deg, var(--color-grid-strong) 1px, transparent 1px) 0 0 / 26px 26px,
    var(--color-surface);
  padding: var(--space-4);
  min-height: 240px;
  display: grid; place-items: center;
}
.ind-block__no {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em;
  color: var(--color-accent-ink);
}
.ind-block h2 { margin-top: var(--space-2); font-size: var(--fs-h2); }
.ind-block__pain { color: var(--color-muted); margin-top: var(--space-3); }
.ind-block__sol { margin-top: var(--space-4); }
.ind-block__sol h4 {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--color-muted); margin-bottom: var(--space-2);
}
.ind-block__sol ul { display: grid; gap: var(--space-2); }
.ind-block__sol li { display: flex; gap: var(--space-2); font-size: var(--fs-small); }
.ind-block__sol li::before { content: "→"; color: var(--color-accent); font-family: var(--font-mono); }
.ind-block__models {
  margin-top: var(--space-4);
  font-family: var(--font-mono); font-size: var(--fs-micro);
  color: var(--color-muted); letter-spacing: .04em;
}
.ind-block__models b { color: var(--color-ink); font-weight: 600; }

/* ============================================================
   客户案例页
   ============================================================ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.case-card { display: flex; flex-direction: column; }
.case-card__top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-3);
}
.case-card__ind {
  font-family: var(--font-mono); font-size: .65rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--color-accent-ink);
  border: 1px solid var(--color-accent); border-radius: 999px;
  padding: 2px 10px;
}
.case-card h3 { font-size: 1.3rem; }
.case-card__challenge { color: var(--color-muted); font-size: var(--fs-small); margin-bottom: var(--space-3); }
.case-card__result {
  margin-top: auto;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}
.case-card__result .n {
  font-family: var(--font-display-num); font-size: 1.6rem; color: var(--color-ink); line-height: 1;
}
.case-card__result .n span { color: var(--color-accent); }
.case-card__result .l {
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--color-muted); margin-top: 4px;
}

/* ============================================================
   关于我们页：历程 / 资质
   ============================================================ */
.timeline { position: relative; margin-top: var(--space-5); }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 0; bottom: 0;
  width: 1px; background: var(--color-border);
}
.tl-item { position: relative; padding: 0 0 var(--space-5) var(--space-5); }
.tl-item::before {
  content: ""; position: absolute; left: 0; top: 6px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-accent);
}
.tl-item .yr { font-family: var(--font-display-num); font-size: 1.4rem; color: var(--color-ink); }
.tl-item h3 { font-size: 1.1rem; margin: 4px 0; }
.tl-item p { color: var(--color-muted); font-size: var(--fs-small); }

.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.cert {
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: var(--space-4); background: var(--color-surface);
  text-align: center;
}
.cert__badge {
  width: 48px; height: 48px; margin: 0 auto var(--space-3);
  border: 1.5px solid var(--color-blueprint); border-radius: 50%;
  display: grid; place-items: center; color: var(--color-blueprint);
  font-family: var(--font-display-num); font-size: 1.1rem;
}
.cert h4 { font-size: .95rem; margin-bottom: 4px; }
.cert p { font-family: var(--font-mono); font-size: .6rem; color: var(--color-muted); letter-spacing: .06em; }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }

/* ============================================================
   联系页：表单 + 卡片
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--space-6);
  align-items: start;
}
.form { display: grid; gap: var(--space-4); }
.field { display: grid; gap: var(--space-2); }
.field label {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--color-muted);
}
.field label .req { color: var(--color-accent); }
.field input,
.field select,
.field textarea {
  font: inherit; font-size: var(--fs-body);
  padding: .85rem 1rem; min-height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
  width: 100%;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-ink);
  box-shadow: 0 0 0 3px rgba(255,90,31,.18);
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255,90,31,.12);
}
.field__err {
  font-family: var(--font-mono); font-size: .68rem;
  color: var(--color-accent-ink); min-height: 1em;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form__status {
  font-family: var(--font-mono); font-size: var(--fs-small);
  padding: var(--space-3); border-radius: var(--radius-sm);
  border: 1px solid var(--color-border); background: var(--color-surface);
}
.form__status.is-success {
  border-color: var(--color-ink); background: var(--color-ink); color: var(--color-bg);
}
.form__status.is-error { border-color: var(--color-accent); }

.contact-cards { display: grid; gap: var(--space-3); }
.contact-card {
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: var(--space-4); background: var(--color-surface);
}
.contact-card h4 {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--color-muted); margin-bottom: var(--space-2);
}
.contact-card .big { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; }
.contact-card a:hover { color: var(--color-accent); }

.map {
  margin-top: var(--space-4);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background:
    linear-gradient(var(--color-grid-strong) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(90deg, var(--color-grid-strong) 1px, transparent 1px) 0 0 / 22px 22px,
    var(--color-surface);
  height: 200px; position: relative; overflow: hidden;
}
.map__pin {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-100%);
  width: 18px; height: 18px; border-radius: 50% 50% 50% 0;
  background: var(--color-accent); rotate: -45deg;
  box-shadow: 0 6px 16px rgba(255,90,31,.4);
}
.map__pin::after { content:""; position:absolute; inset:5px; background:#fff; border-radius:50%; }

/* ============================================================
   滚动入场（reveal.js）
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); }
.reveal.in {
  opacity: 1; transform: none;
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .caps { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid, .prod-grid--full { grid-template-columns: repeat(2, 1fr); }
  .stat-grid, .trust, .certs { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  :root { --nav-h: 64px; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__viz { order: -1; }
  .featured { grid-template-columns: 1fr; }
  .ind-block, .ind-block:nth-child(even) { grid-template-columns: 1fr; }
  .ind-block:nth-child(even) .ind-block__viz { order: 0; }
  .case-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .caps, .app-grid, .prod-grid, .prod-grid--full,
  .stat-grid, .trust, .certs { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .cta { padding: var(--space-5); }
  .section { padding-block: var(--space-6); }
}