/* ============================================================
   QUL · 杭州启联智创科技有限公司
   Global stylesheet
   ============================================================ */

:root {
  --bg: #06080c;
  --bg-2: #0a0f16;
  --panel: #0e141d;
  --panel-2: #121a25;
  --line: rgba(130, 170, 215, 0.13);
  --line-strong: rgba(130, 170, 215, 0.26);
  --txt: #eaf1f9;
  --txt-2: #b7c3d2;
  --muted: #7d8b9e;
  --accent: #00c8ff;
  --accent-deep: #0a7cff;
  --amber: #ffb02e;
  --radius: 14px;
  --maxw: 1280px;
  --ease: cubic-bezier(0.22, 0.68, 0.32, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

::selection { background: rgba(0, 200, 255, 0.28); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #05070a; }
::-webkit-scrollbar-thumb { background: #1c2836; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #2a3a4d; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; }

.section-title {
  font-size: clamp(26px, 3.4vw, 40px);
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--txt-2);
  font-size: 15px;
  max-width: 640px;
  margin-top: 16px;
}
.accent { color: var(--accent); }
.muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(120deg, var(--accent), #0090ff);
  color: #041018;
  box-shadow: 0 10px 30px -12px rgba(0, 200, 255, 0.7);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px -12px rgba(0, 200, 255, 0.85);
}
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--txt);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 200, 255, 0.06);
}
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: 78px;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), height 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  height: 66px;
  background: rgba(6, 8, 12, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid rgba(0, 200, 255, 0.45);
  border-radius: 9px;
  background: linear-gradient(150deg, rgba(0, 200, 255, 0.22), rgba(0, 200, 255, 0.02));
  box-shadow: 0 0 22px -6px rgba(0, 200, 255, 0.6);
  font-weight: 800;
  font-size: 15px;
  color: var(--accent);
  letter-spacing: -0.04em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: 0.14em; }
.brand-sub { font-size: 10px; color: var(--muted); letter-spacing: 0.08em; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 10px 15px;
  font-size: 14px;
  color: var(--txt-2);
  border-radius: 8px;
  transition: color 0.25s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 4px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:hover, .nav a.active { color: #fff; }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }

.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { height: 40px; padding: 0 20px; font-size: 13px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--txt);
  margin: 4px auto;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 760px;
  height: 100vh;
  max-height: 980px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(1100px 620px at 78% 18%, rgba(0, 140, 255, 0.16), transparent 62%),
    radial-gradient(760px 520px at 12% 82%, rgba(0, 200, 255, 0.08), transparent 60%),
    linear-gradient(180deg, #05070a 0%, #070b11 60%, #06080c 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(130, 170, 215, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 170, 215, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 78%);
  pointer-events: none;
}
.hero-ghost {
  position: absolute;
  right: -2vw;
  top: 46%;
  transform: translateY(-50%);
  font-size: clamp(240px, 30vw, 460px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 1px rgba(140, 185, 230, 0.07);
  pointer-events: none;
  user-select: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
  width: 100%;
  padding-top: 60px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 12px;
  color: var(--txt-2);
  background: rgba(255, 255, 255, 0.02);
  letter-spacing: 0.04em;
}
.hero-badge i {
  width: 22px; height: 22px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(0, 200, 255, 0.14);
  color: var(--accent);
  font-style: normal;
  font-size: 11px;
}
.hero h1 {
  margin: 26px 0 0;
  font-size: clamp(38px, 5.2vw, 68px);
  line-height: 1.14;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.hero h1 .line-2 { display: block; }
.grad-text {
  background: linear-gradient(100deg, #ffffff 10%, #7fe4ff 50%, #0090ff 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  margin-top: 22px;
  max-width: 520px;
  color: var(--txt-2);
  font-size: 16px;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 46px;
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  max-width: 520px;
}
.hero-meta dl { margin: 0; }
.hero-meta dt { font-size: 24px; font-weight: 700; color: #fff; letter-spacing: -0.02em; }
.hero-meta dd { margin: 2px 0 0; font-size: 12px; color: var(--muted); letter-spacing: 0.06em; }

/* hero visual */
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual .rig {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.6));
}
.hero-visual::after {
  content: "";
  position: absolute;
  bottom: 8%; left: 50%;
  width: 70%; height: 60px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(0, 170, 255, 0.35), transparent 70%);
  filter: blur(18px);
}

/* marquee */
.hero-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  border-top: 1px solid var(--line);
  background: rgba(5, 8, 12, 0.5);
  overflow: hidden;
  z-index: 3;
}
.marquee { display: flex; width: max-content; animation: marquee 34s linear infinite; }
.marquee span {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 15px 26px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}
.marquee span::after { content: "◆"; font-size: 6px; color: var(--accent); opacity: 0.7; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { position: relative; padding: 112px 0; }
.section--tight { padding: 80px 0; }
.section--alt { background: linear-gradient(180deg, #080c12, #06080c); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 56px;
}
.section-head .left { max-width: 660px; }

/* about block */
.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 72px;
  align-items: center;
}
.about-copy p { color: var(--txt-2); margin: 0 0 18px; }
.about-copy strong { color: #fff; font-weight: 600; }
.about-points { margin-top: 30px; display: grid; gap: 14px; }
.about-points li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: var(--txt-2);
}
.about-points li::before {
  content: "";
  flex: none;
  width: 6px; height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(0, 200, 255, 0.9);
}

/* capability grid */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.cap-card {
  position: relative;
  padding: 32px 26px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
  overflow: hidden;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease);
}
.cap-card::after {
  content: "";
  position: absolute;
  inset: auto auto -40% -20%;
  width: 80%; height: 80%;
  background: radial-gradient(circle, rgba(0, 200, 255, 0.16), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
}
.cap-card:hover { transform: translateY(-6px); border-color: rgba(0, 200, 255, 0.4); }
.cap-card:hover::after { opacity: 1; }
.cap-icon {
  width: 44px; height: 44px;
  border-radius: 11px;
  display: grid; place-items: center;
  border: 1px solid rgba(0, 200, 255, 0.28);
  background: rgba(0, 200, 255, 0.07);
  color: var(--accent);
  margin-bottom: 22px;
}
.cap-card h3 { font-size: 17px; margin-bottom: 10px; }
.cap-card p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.cap-num {
  position: absolute;
  top: 22px; right: 22px;
  font-size: 12px;
  color: rgba(140, 185, 230, 0.35);
  letter-spacing: 0.1em;
}

/* products */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.product-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 200, 255, 0.42);
  box-shadow: 0 26px 50px -26px rgba(0, 0, 0, 0.9);
}
.product-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 65%, rgba(0, 140, 255, 0.2), transparent 62%),
    linear-gradient(165deg, #131c28, #0a0f16);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.product-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(130, 170, 215, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 170, 215, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
}
.product-visual svg { position: relative; z-index: 1; max-height: 76%; transition: transform 0.5s var(--ease); }
.product-card:hover .product-visual svg { transform: scale(1.05) translateY(-4px); }
.product-tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--amber);
  background: rgba(255, 176, 46, 0.12);
  border: 1px solid rgba(255, 176, 46, 0.3);
}
.product-body { padding: 22px 22px 24px; }
.product-cat { font-size: 11px; letter-spacing: 0.16em; color: var(--accent); text-transform: uppercase; }
.product-body h3 { font-size: 19px; margin: 8px 0 6px; letter-spacing: 0.01em; }
.product-body p { margin: 0; font-size: 13px; color: var(--muted); }
.product-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
}
.product-foot .more { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filter-btn {
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--txt-2);
  font-size: 13.5px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.28s var(--ease);
}
.filter-btn:hover { color: #fff; border-color: var(--accent); }
.filter-btn.active {
  background: linear-gradient(120deg, var(--accent), #0090ff);
  color: #05121a;
  border-color: transparent;
  font-weight: 600;
}

/* solutions */
.solution-list { display: grid; gap: 18px; }
.solution-item {
  display: grid;
  grid-template-columns: 64px 1.1fr 1fr;
  gap: 36px;
  align-items: center;
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 0.35s, background 0.35s;
}
.solution-item:hover { border-color: rgba(0, 200, 255, 0.35); background: var(--panel-2); }
.solution-no {
  font-size: 30px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 200, 255, 0.5);
  letter-spacing: -0.02em;
}
.solution-item h3 { font-size: 20px; margin-bottom: 8px; }
.solution-item .en { font-size: 11px; letter-spacing: 0.18em; color: var(--muted); text-transform: uppercase; }
.solution-desc { font-size: 13.5px; color: var(--txt-2); margin-top: 10px; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.solution-tags span {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 6px;
  color: var(--txt-2);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

/* cases */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-card {
  position: relative;
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 32px;
  background: linear-gradient(160deg, #16202d, #0a0e14);
  transition: border-color 0.4s, transform 0.4s var(--ease);
}
.case-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 25%, rgba(0, 150, 255, 0.22), transparent 58%),
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 14px);
}
.case-card:hover { transform: translateY(-5px); border-color: rgba(0, 200, 255, 0.4); }
.case-card > * { position: relative; z-index: 1; }
.case-body { width: 100%; }
.case-cat {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent);
  border: 1px solid rgba(0, 200, 255, 0.3);
  background: rgba(0, 200, 255, 0.08);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.case-card h3 { font-size: 22px; margin-bottom: 8px; }
.case-card p { margin: 0; font-size: 13.5px; color: var(--txt-2); max-width: 440px; }

/* stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat { background: #080c12; padding: 34px 28px; }
.stat b {
  display: block;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
}
.stat b i { font-style: normal; font-size: 18px; color: var(--accent); margin-left: 2px; }
.stat span { font-size: 12.5px; color: var(--muted); letter-spacing: 0.04em; }

/* news */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: var(--panel);
  transition: border-color 0.35s, transform 0.35s var(--ease);
}
.news-card:hover { transform: translateY(-4px); border-color: rgba(0, 200, 255, 0.35); }
.news-date { font-size: 12px; color: var(--muted); letter-spacing: 0.08em; }
.news-card h3 { font-size: 16.5px; margin: 12px 0 10px; line-height: 1.55; }
.news-card p { margin: 0; font-size: 13px; color: var(--muted); }
.news-card .more { display: inline-block; margin-top: 18px; font-size: 12.5px; color: var(--accent); }

/* CTA */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  padding: 66px 60px;
  background: linear-gradient(120deg, #0b1a2a, #08111a 60%, #0a1420);
  border: 1px solid rgba(0, 200, 255, 0.22);
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -10%; top: -60%;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(0, 170, 255, 0.22), transparent 66%);
}
.cta-inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -0.02em; }
.cta-band p { color: var(--txt-2); margin: 14px 0 0; max-width: 520px; }

/* footer */
.site-footer { background: #05070a; border-top: 1px solid var(--line); padding: 72px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand p { color: var(--muted); font-size: 13.5px; margin: 20px 0 0; max-width: 320px; }
.footer-col h4 { font-size: 13px; letter-spacing: 0.14em; color: #fff; margin-bottom: 20px; text-transform: uppercase; }
.footer-col li { margin-bottom: 12px; }
.footer-col a, .footer-col span { font-size: 13.5px; color: var(--muted); transition: color 0.25s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--muted);
}
.footer-bottom a:hover { color: var(--accent); }

/* page hero (inner pages) */
.page-hero {
  position: relative;
  padding: 172px 0 72px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 420px at 70% 0%, rgba(0, 140, 255, 0.16), transparent 65%),
    #070a0f;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(130, 170, 215, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 170, 215, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, #000, transparent);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent);
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb { font-size: 12px; color: var(--muted); letter-spacing: 0.06em; margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--accent); }
.page-hero h1 { font-size: clamp(32px, 4.2vw, 52px); letter-spacing: -0.03em; }
.page-hero .lead { color: var(--txt-2); max-width: 620px; margin-top: 18px; }

/* contact */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; }
.contact-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.contact-row { background: var(--panel); padding: 24px 26px; }
.contact-row small { display: block; font-size: 11.5px; letter-spacing: 0.14em; color: var(--muted); text-transform: uppercase; margin-bottom: 8px; }
.contact-row strong { font-size: 16px; font-weight: 600; color: #fff; letter-spacing: 0.01em; }
.contact-row p { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

.form-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 12.5px; color: var(--txt-2); margin-bottom: 8px; letter-spacing: 0.04em; }
.field input, .field textarea, .field select {
  width: 100%;
  background: #0a0f16;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 13px 14px;
  color: var(--txt);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.12);
}
.form-note { font-size: 12px; color: var(--muted); margin-top: 14px; }

/* modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(3, 5, 8, 0.82);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
.modal.open { opacity: 1; pointer-events: auto; }
.modal-box {
  width: 100%;
  max-width: 860px;
  max-height: 86vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 40px;
  transform: translateY(18px) scale(0.99);
  transition: transform 0.35s var(--ease);
}
.modal.open .modal-box { transform: none; }
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin-bottom: 8px; }
.modal-close {
  flex: none;
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--txt);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.25s;
}
.modal-close:hover { border-color: var(--accent); color: var(--accent); }
.modal h3 { font-size: 26px; }
.modal .modal-sub { color: var(--accent); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 26px; font-size: 13.5px; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--muted); font-weight: 500; width: 34%; }
.spec-table td { color: var(--txt); }
.modal-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 24px; }
  .hero-visual { display: none; }
  .hero { min-height: 700px; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-item { grid-template-columns: 48px 1fr; gap: 20px; }
  .solution-tags { grid-column: 2; justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .nav-toggle { display: grid; }
  .header-cta .btn { display: none; }
}

@media (max-width: 760px) {
  .container { padding: 0 20px; }
  .section { padding: 76px 0; }
  .hero { height: auto; min-height: 0; padding: 132px 0 96px; }
  .hero-meta { gap: 28px; }
  .hero-meta dt { font-size: 20px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 22px; margin-bottom: 38px; }
  .cap-grid, .product-grid, .news-grid, .case-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .cta-band { padding: 44px 28px; }
  .solution-item { padding: 26px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 26px 22px; }
  .modal-box { padding: 26px 22px; }
  .page-hero { padding: 130px 0 56px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 66px 0 auto 0;
  z-index: 99;
  background: rgba(7, 10, 15, 0.98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  padding: 12px 20px 24px;
  display: none;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 15px 6px;
  font-size: 16px;
  color: var(--txt-2);
  border-bottom: 1px solid var(--line);
}
.mobile-nav a:last-child { border-bottom: 0; }
.mobile-nav a.active { color: var(--accent); }
.mobile-nav .btn { width: 100%; margin-top: 18px; }

/* ---------- 产品工具栏 / 搜索 ---------- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.toolbar .filters { margin-bottom: 0; }

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 42px;
  padding: 0 16px;
  min-width: 260px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  transition: border-color 0.25s;
}
.search-box:focus-within { border-color: var(--accent); }
.search-box svg { flex: none; }
.search-box input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--txt);
  font-family: inherit;
  font-size: 13.5px;
}
.search-box input::placeholder { color: var(--muted); }
.search-box input::-webkit-search-cancel-button { filter: invert(1) opacity(.45); }

/* ---------- 分页 ---------- */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.pager-info {
  font-size: 12.5px;
  color: var(--muted);
  margin-right: 10px;
}
.page-btn {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--txt-2);
  font-family: inherit;
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.page-btn:hover:not(:disabled) { border-color: var(--accent); color: #fff; }
.page-btn.active {
  background: linear-gradient(120deg, var(--accent), #0090ff);
  color: #05121a;
  border-color: transparent;
  font-weight: 600;
}
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.pager-gap { color: var(--muted); padding: 0 4px; }

/* ---------- 空状态 ---------- */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
}
.empty-state p { font-size: 17px; margin: 0 0 8px; color: var(--txt); }
.empty-state span { font-size: 13.5px; color: var(--muted); }

/* ---------- 产品图 ---------- */
.product-visual img {
  position: relative;
  z-index: 1;
  max-height: 76%;
  max-width: 82%;
  object-fit: contain;
  transition: transform 0.5s var(--ease);
  filter: drop-shadow(0 18px 26px rgba(0, 0, 0, 0.55));
}
.product-card:hover .product-visual img { transform: scale(1.05) translateY(-4px); }

/* ---------- 产品详情页 ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.detail-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 62%, rgba(0, 140, 255, 0.2), transparent 62%),
    linear-gradient(165deg, #131c28, #0a0f16);
  overflow: hidden;
}
.detail-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(130, 170, 215, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 170, 215, 0.07) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.5;
}
.detail-visual img {
  position: relative;
  z-index: 1;
  max-width: 84%;
  max-height: 84%;
  object-fit: contain;
  filter: drop-shadow(0 24px 34px rgba(0, 0, 0, 0.6));
}
.detail-visual .ph { position: relative; z-index: 1; }

.rel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.rel-card {
  display: block;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: all 0.3s var(--ease);
}
.rel-card:hover { border-color: rgba(0, 200, 255, 0.4); transform: translateY(-3px); }
.rel-model { display: block; font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.rel-name { font-size: 12.5px; color: var(--muted); }

@media (max-width: 1080px) {
  .detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .rel-grid { grid-template-columns: 1fr 1fr; }
  .search-box { min-width: 0; flex: 1; }
}
@media (max-width: 760px) {
  .rel-grid { grid-template-columns: 1fr; }
  .toolbar { gap: 14px; }
  .search-box { width: 100%; }
}

/* ---------- 详情页：系列 / 备注 / 说明 ---------- */
.series-chip {
  display: inline-block;
  margin-left: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--txt-2);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  vertical-align: middle;
}

.remark-box {
  margin-top: 24px;
  padding: 16px 20px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 176, 46, 0.06);
  border-radius: 0 10px 10px 0;
  font-size: 13.5px;
  color: var(--txt-2);
  line-height: 1.8;
  white-space: pre-line;
}
.remark-box span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 6px;
}

.desc-block {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.spec-table td { line-height: 1.7; }

.spec-empty {
  margin: 0;
  padding: 26px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 13.5px;
}