/*
Theme Name: szxuandong
Template: generatepress
Author: GK
Description: 深圳市振兴达电子有限公司 - Xuandong Design System
Version: 1.0.0
*/

/* Local fonts */
@font-face{font-family:"Noto Sans SC";font-style:normal;font-weight:300 700;font-display:swap;src:url(assets/fonts/noto-sans-sc.woff2) format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:300 700;font-display:swap;src:url(assets/fonts/space-grotesk.woff2) format("woff2")}
/* ============================================================
   DESIGN TOKENS
   精工深蓝 + 哑光银 — Xuandong Machinery
============================================================ */
:root {
  /* Palette */
  --ink:        #0B1D3A;   /* Primary dark: deep navy */
  --ink-deep:   #060F1E;   /* Footer/deepest dark */
  --ink-card:   #0F2448;   /* Card bg in dark sections */
  --ink-border: rgba(164,187,207,0.12); /* Border in dark */
  --blue:       #2B6CE6;   /* Primary action blue */
  --blue-lt:    #4A84FF;   /* Hover blue */
  --blue-dim:   rgba(43,108,230,0.12);
  --silver:     #A4BBCF;   /* Silver accent */
  --silver-lt:  #C8D8E6;   /* Light silver */
  --surface:    #F0F4FA;   /* Light section bg */
  --border:     #DDE5EF;
  --text:       #0F1B2D;
  --text-2:     #4A5D74;
  --text-3:     #7A8EA3;
  --white:      #FFFFFF;
  --green:      #00C8A0;

  /* Type */
  --f-d: 'Space Grotesk', system-ui, sans-serif;
  --f-b: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.68, 0, 1.2);
  --ease-out: cubic-bezier(0, 0.55, 0.45, 1);
  --ease-std: cubic-bezier(0.4, 0, 0.2, 1);

  /* Radius */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;

  /* Shadow */
  --sh-sm: 0 2px 8px rgba(11,29,58,0.07);
  --sh-md: 0 8px 32px rgba(11,29,58,0.10);
  --sh-lg: 0 20px 60px rgba(11,29,58,0.14);
  --sh-blue: 0 6px 24px rgba(43,108,230,0.28);

  --max-w: 1260px;
}

/* ============================================================
   RESET + BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--f-b); color: var(--text); background: var(--white); line-height: 1.7; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}
@media (max-width: 1024px) { .container { padding: 0 32px; } }
@media (max-width: 640px)  { .container { padding: 0 20px; } }

/* ============================================================
   TYPOGRAPHY HELPERS
============================================================ */
.display { font-family: var(--f-d); }
.section-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-d); font-size: 11px; font-weight: 500;
  letter-spacing: 2.5px; text-transform: uppercase; color: var(--blue);
  margin-bottom: 14px;
}
.section-label::before {
  content: ''; display: block; width: 22px; height: 1.5px;
  background: currentColor; flex-shrink: 0;
}
.section-label.light { color: var(--silver); }
.section-label.silver { color: var(--silver); }

.section-h2 {
  font-family: var(--f-d); font-size: clamp(28px, 3vw, 40px);
  font-weight: 700; line-height: 1.18; letter-spacing: -0.5px;
  color: var(--text); margin-bottom: 14px;
}
.section-h2.light { color: var(--white); }
.section-h2 em { font-style: normal; color: var(--blue); }
.section-h2.light em { color: var(--silver-lt); }

.section-sub {
  font-size: 15px; color: var(--text-2); line-height: 1.85; max-width: 520px;
}
.section-sub.light { color: rgba(164,187,207,0.75); }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; margin-bottom: 52px; flex-wrap: wrap;
}
.section-head-text { flex: 1; min-width: 260px; }

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-b); font-size: 14px; font-weight: 600;
  padding: 12px 26px; border-radius: var(--r-sm);
  transition: all 0.25s var(--ease-std); white-space: nowrap;
  letter-spacing: 0.2px;
}
.btn-primary {
  background: var(--blue); color: var(--white);
  border: 1.5px solid var(--blue);
}
.btn-primary:hover {
  background: var(--blue-lt); border-color: var(--blue-lt);
  transform: translateY(-1px); box-shadow: var(--sh-blue);
}
.btn-outline {
  background: transparent; color: rgba(255,255,255,0.82);
  border: 1.5px solid rgba(255,255,255,0.28);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.55);
  color: white;
}
.btn-ghost {
  background: transparent; color: var(--blue);
  border: 1.5px solid var(--border); padding: 10px 20px;
}
.btn-ghost:hover {
  background: var(--blue-dim); border-color: var(--blue);
}
.btn svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; transition: transform 0.2s; }
.btn:hover svg { transform: translateX(3px); }

/* ============================================================
   LINK MORE
============================================================ */
.link-more {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-d); font-size: 13px; font-weight: 600;
  color: var(--silver); letter-spacing: 0.2px; transition: color 0.2s;
}
.link-more svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.2s; }
.link-more:hover { color: white; }
.link-more:hover svg { transform: translateX(4px); }
.link-more.dark { color: var(--text-2); }
.link-more.dark:hover { color: var(--blue); }

/* ============================================================
   NAV
============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: background 0.35s var(--ease-std), box-shadow 0.35s var(--ease-std);
}
.nav.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 1px 0 rgba(0,0,0,0.07), var(--sh-sm);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 24px;
}

/* Logo */
.nav-logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; background: var(--blue); border-radius: 9px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  position: relative; overflow: hidden;
}
.logo-mark::after {
  content: ''; position: absolute; top: 0; right: 0;
  width: 13px; height: 13px; background: rgba(255,255,255,0.18);
  border-radius: 0 0 0 9px;
}
.logo-mark span {
  font-family: var(--f-d); font-size: 17px; font-weight: 700;
  color: white; position: relative; z-index: 1; letter-spacing: -0.5px;
}
.logo-texts {}
.logo-cn {
  font-family: var(--f-b); font-size: 16px; font-weight: 700;
  color: white; line-height: 1.1; letter-spacing: 0.02em;
  transition: color 0.3s;
}
.nav.scrolled .logo-cn { color: var(--text); }
.logo-en {
  font-family: var(--f-d); font-size: 9.5px; font-weight: 500;
  color: var(--silver); letter-spacing: 0.15em; text-transform: uppercase;
  transition: color 0.3s;
}
.nav.scrolled .logo-en { color: var(--text-3); }

/* Nav links */
.nav-links {
  display: flex; align-items: center; gap: 2px; flex: 1; justify-content: center;
}
.nav-links a {
  font-size: 13.5px; font-weight: 500; color: rgba(255,255,255,0.72);
  padding: 7px 13px; border-radius: 6px; transition: all 0.2s; position: relative;
  white-space: nowrap;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 3px; left: 13px; right: 13px;
  height: 1.5px; background: var(--blue-lt);
  transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease-std);
}
.nav-links a:hover { color: white; }
.nav-links a:hover::after { transform: scaleX(1); }
.nav.scrolled .nav-links a { color: var(--text-2); }
.nav.scrolled .nav-links a:hover { color: var(--blue); background: var(--surface); }
.nav.scrolled .nav-links a:hover::after { background: var(--blue); }

/* Nav right */
.nav-right { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.nav-phone {
  font-family: var(--f-d); font-size: 13px; font-weight: 600;
  color: rgba(255,255,255,0.65); transition: color 0.3s; white-space: nowrap;
}
.nav.scrolled .nav-phone { color: var(--blue); }

/* Mobile toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 6px; border-radius: 6px; transition: background 0.2s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.1); }
.nav.scrolled .nav-toggle:hover { background: var(--surface); }
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: white;
  border-radius: 2px; transition: all 0.3s;
}
.nav.scrolled .nav-toggle span { background: var(--text); }

@media (max-width: 860px) {
  .nav-links, .nav-phone { display: none; }
  .nav-toggle { display: flex; }
}

/* Mobile nav drawer */
.mob-overlay {
  position: fixed; inset: 0; background: rgba(6,15,30,0.6);
  z-index: 998; opacity: 0; pointer-events: none; transition: opacity 0.3s;
  backdrop-filter: blur(4px);
}
.mob-overlay.on { opacity: 1; pointer-events: all; }
.mob-nav {
  position: fixed; top: 0; right: -300px; bottom: 0; width: 280px;
  background: var(--white); z-index: 999;
  padding: 80px 28px 32px; transition: right 0.35s var(--ease-out);
  box-shadow: -16px 0 48px rgba(0,0,0,0.15);
}
.mob-nav.on { right: 0; }
.mob-close {
  position: absolute; top: 20px; right: 20px;
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.mob-close:hover { background: var(--surface); }
.mob-close svg { width: 18px; height: 18px; fill: none; stroke: var(--text); stroke-width: 2; stroke-linecap: round; }
.mob-nav ul { display: flex; flex-direction: column; gap: 2px; margin-bottom: 32px; }
.mob-nav a {
  display: block; padding: 12px 14px; font-size: 15px; font-weight: 600;
  color: var(--text); border-radius: 8px; transition: all 0.2s;
}
.mob-nav a:hover { background: var(--surface); color: var(--blue); }
.mob-contact {
  background: var(--surface); border-radius: 12px;
  padding: 18px 20px;
}
.mob-contact .lbl { font-size: 11px; color: var(--text-3); font-weight: 500; letter-spacing: 0.5px; margin-bottom: 4px; }
.mob-contact .num { font-family: var(--f-d); font-size: 20px; font-weight: 700; color: var(--blue); }

/* ============================================================
   HERO
============================================================ */
.hero {
  background: var(--ink);
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  position: relative; overflow: hidden;
}

/* Subtle blueprint grid on dark bg */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(43,108,230,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,108,230,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 50%, black 20%, transparent 100%);
  pointer-events: none;
}
/* Ambient blue glow right side */
.hero::after {
  content: '';
  position: absolute; right: 0; top: 10%; bottom: 10%;
  width: 50%; background: radial-gradient(ellipse at 70% 50%, rgba(43,108,230,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-left {
  display: flex; flex-direction: column; justify-content: center;
  position: relative; z-index: 2;
  padding-top: 120px; padding-bottom: 80px;
  padding-left: max(28px, calc((100vw - 1260px) / 2 + 48px));
  padding-right: 48px;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-d); font-size: 11px; font-weight: 500;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--silver); margin-bottom: 26px;
}
.hero-eyebrow::before {
  content: ''; display: block; width: 28px; height: 1.5px;
  background: var(--blue); flex-shrink: 0;
}

.hero-h1 {
  font-family: var(--f-d); font-weight: 700;
  font-size: clamp(40px, 4.5vw, 64px); line-height: 1.1;
  letter-spacing: -1.5px; color: var(--white); margin-bottom: 22px;
}
.hero-h1 em {
  font-style: normal; display: block;
  background: linear-gradient(105deg, var(--blue-lt) 0%, var(--silver-lt) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-h1-en {
  font-family: var(--f-d); font-size: clamp(12px, 1.4vw, 16px);
  font-weight: 400; color: rgba(164,187,207,0.4);
  letter-spacing: 0.1em; display: block;
  margin-bottom: 28px;
}

.hero-desc {
  font-size: 15px; color: rgba(164,187,207,0.7);
  line-height: 1.85; max-width: 440px; margin-bottom: 42px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats {
  display: flex; gap: 0;
  padding-top: 40px; border-top: 1px solid rgba(164,187,207,0.12);
}
.hero-stat {
  flex: 1; padding: 0 28px;
  border-right: 1px solid rgba(164,187,207,0.1);
}
.hero-stat:first-child { padding-left: 0; }
.hero-stat:last-child { border-right: none; }
.hero-stat-num {
  font-family: var(--f-d); font-size: 30px; font-weight: 700;
  color: white; line-height: 1; letter-spacing: -1px; margin-bottom: 5px;
}
.hero-stat-num span { color: var(--silver); font-size: 18px; font-weight: 400; }
.hero-stat-label { font-size: 12px; color: rgba(164,187,207,0.5); letter-spacing: 0.2px; }

/* Hero right – schematic panel */
.hero-right {
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 2;
  padding: 80px 20px 80px 20px;
  padding-right: max(20px, calc((100vw - 1260px) / 2 + 32px));
}
.hero-schematic { width: 100%; max-width: 480px; height: auto; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-left { padding: 110px 24px 60px; padding-left: max(20px, 24px); padding-right: 24px; }
  .hero-right { display: none; }
}
@media (max-width: 480px) {
  .hero-h1 { font-size: 36px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .hero-stat { border-right: none; border-bottom: 1px solid rgba(164,187,207,0.1); padding: 16px 0; }
  .hero-stat:last-child { border-bottom: none; }
}

/* ============================================================
   MARQUEE
============================================================ */
.marquee-wrap {
  background: rgba(6,15,30,1);
  border-top: 1px solid rgba(164,187,207,0.07);
  border-bottom: 1px solid rgba(164,187,207,0.07);
  overflow: hidden; padding: 0;
}
.marquee-track {
  display: flex; width: max-content;
  animation: marquee-scroll 28s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.marquee-item {
  display: inline-flex; align-items: center; gap: 20px;
  padding: 14px 32px; white-space: nowrap;
  font-family: var(--f-d); font-size: 11px; font-weight: 500;
  letter-spacing: 2px; text-transform: uppercase;
  color: rgba(164,187,207,0.38);
  transition: color 0.2s;
}
.marquee-item:hover { color: var(--silver); }
.marquee-dot {
  width: 3px; height: 3px; background: var(--blue);
  border-radius: 50%; flex-shrink: 0; opacity: 0.6;
}

/* ============================================================
   STATS STRIP
============================================================ */
.stats-strip {
  background: var(--blue); padding: 52px 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.stat-block {
  text-align: center; padding: 20px 24px; position: relative;
}
.stat-block::after {
  content: ''; position: absolute; top: 20%; right: 0; bottom: 20%;
  width: 1px; background: rgba(255,255,255,0.18);
}
.stat-block:first-child { text-align: left; }
.stat-block:nth-child(1)::after { right: 12px; }
.stat-block:nth-child(3)::after { right: -12px; }
.stat-block:last-child { text-align: right; }
.stat-block:last-child::after { display: none; }
.stat-val {
  font-family: var(--f-d); font-size: 46px; font-weight: 700;
  color: white; line-height: 1; letter-spacing: -2px; margin-bottom: 7px;
}
.stat-unit { font-size: 20px; font-weight: 400; opacity: 0.7; letter-spacing: 0; }
.stat-lbl { font-size: 12.5px; color: rgba(255,255,255,0.62); letter-spacing: 0.3px; }
@media (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-block::after { display: none; }
  .stat-val { font-size: 36px; }
}

/* ============================================================
   SECTION BASE
============================================================ */
.section { padding: 96px 0; }
.section--light { background: var(--surface); }
.section--dark  { background: var(--ink); }
.section--mid   { background: var(--ink-deep); }

/* ============================================================
   CAPABILITIES STRIP (after stats)
============================================================ */
.caps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--border); border-radius: var(--r-md);
  overflow: hidden;
}
.cap-item {
  background: var(--white); padding: 40px 36px;
  display: flex; gap: 20px; align-items: flex-start;
  transition: background 0.25s;
}
.cap-item:hover { background: var(--surface); }
.cap-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--blue-dim); display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; transition: background 0.25s;
}
.cap-item:hover .cap-icon { background: var(--blue); }
.cap-icon svg {
  width: 22px; height: 22px; fill: none;
  stroke: var(--blue); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.25s;
}
.cap-item:hover .cap-icon svg { stroke: white; }
.cap-text {}
.cap-title { font-family: var(--f-d); font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.cap-desc { font-size: 13px; color: var(--text-2); line-height: 1.75; }
@media (max-width: 768px) { .caps-grid { grid-template-columns: 1fr; } }

/* ============================================================
   ABOUT SECTION
============================================================ */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-spec {
  background: var(--ink); border-radius: var(--r-lg); padding: 36px 40px;
  position: relative; overflow: hidden;
}
.about-spec::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
}
.spec-title {
  font-family: var(--f-d); font-size: 10px; font-weight: 600;
  letter-spacing: 2.5px; text-transform: uppercase; color: var(--silver);
  opacity: 0.55; margin-bottom: 24px; padding-bottom: 16px;
  border-bottom: 1px solid var(--ink-border);
}
.spec-row {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 13px 0; border-bottom: 1px solid var(--ink-border);
}
.spec-row:last-child { border-bottom: none; }
.spec-key {
  font-family: var(--f-d); font-size: 12px; font-weight: 400;
  color: var(--silver); opacity: 0.5; letter-spacing: 0.3px;
}
.spec-val {
  font-family: var(--f-d); font-size: 17px; font-weight: 700;
  color: white; letter-spacing: -0.3px; text-align: right;
}
.spec-val span { font-size: 12px; font-weight: 400; color: var(--silver); opacity: 0.6; margin-left: 4px; }
.spec-cert {
  margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--ink-border);
  display: flex; gap: 10px; flex-wrap: wrap;
}
.cert-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 100px;
  background: rgba(43,108,230,0.12); border: 1px solid rgba(43,108,230,0.25);
  font-family: var(--f-d); font-size: 11px; font-weight: 600; color: var(--silver-lt);
  letter-spacing: 0.3px;
}
.cert-tag::before {
  content: ''; width: 5px; height: 5px; background: var(--green);
  border-radius: 50%; flex-shrink: 0;
}
.about-pillars { margin-top: 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pillar {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 16px 18px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-sm); transition: all 0.25s;
}
.pillar:hover { border-color: var(--blue); background: white; box-shadow: var(--sh-sm); }
.pillar-dot {
  width: 8px; height: 8px; background: var(--blue); border-radius: 50%;
  flex-shrink: 0; margin-top: 5px;
}
.pillar-t { font-family: var(--f-d); font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.pillar-s { font-size: 11.5px; color: var(--text-2); line-height: 1.5; }

@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }
@media (max-width: 480px) { .about-pillars { grid-template-columns: 1fr; } }

/* ============================================================
   PRODUCTS (dark section)
============================================================ */
.prod-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5px;
  background: var(--ink-border); border-radius: var(--r-lg); overflow: hidden;
}
.prod-card {
  background: var(--ink-card); padding: 34px 30px;
  position: relative; overflow: hidden; transition: background 0.3s;
  cursor: pointer;
}
.prod-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--blue); transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s var(--ease-std);
}
.prod-card:hover { background: rgba(15,36,72,0.95); }
.prod-card:hover::before { transform: scaleX(1); }
.prod-card-icon {
  width: 52px; height: 52px; border-radius: 13px;
  background: rgba(43,108,230,0.1); display: flex; align-items: center;
  justify-content: center; margin-bottom: 22px; transition: background 0.3s;
}
.prod-card:hover .prod-card-icon { background: var(--blue); }
.prod-card-icon svg {
  width: 24px; height: 24px; fill: none;
  stroke: var(--blue); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.3s;
}
.prod-card:hover .prod-card-icon svg { stroke: white; }
.prod-badge {
  position: absolute; top: 22px; right: 22px;
  font-family: var(--f-d); font-size: 10px; font-weight: 600;
  letter-spacing: 0.8px; text-transform: uppercase;
  background: rgba(164,187,207,0.08); color: var(--silver);
  padding: 3px 9px; border-radius: 100px; border: 1px solid rgba(164,187,207,0.15);
}
.prod-name {
  font-family: var(--f-d); font-size: 16px; font-weight: 700;
  color: white; margin-bottom: 10px; line-height: 1.3;
}
.prod-desc { font-size: 12.5px; color: rgba(164,187,207,0.5); line-height: 1.75; margin-bottom: 22px; }
.prod-arrow {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--f-d); font-size: 12px; font-weight: 600;
  color: rgba(43,108,230,0.7); transition: all 0.2s;
}
.prod-arrow svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.2s; }
.prod-card:hover .prod-arrow { color: var(--silver-lt); }
.prod-card:hover .prod-arrow svg { transform: translateX(4px); }

@media (max-width: 860px) { .prod-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .prod-grid { grid-template-columns: 1fr; } }

/* ============================================================
   TECHNOLOGY (4 benefits)
============================================================ */
.tech-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.tech-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 32px 26px;
  transition: all 0.3s var(--ease-std); position: relative; overflow: hidden;
}
.tech-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2.5px; background: linear-gradient(90deg, var(--blue), var(--silver-lt));
  transform: scaleX(0); transition: transform 0.35s var(--ease-std);
}
.tech-card:hover { transform: translateY(-5px); box-shadow: var(--sh-md); border-color: transparent; }
.tech-card:hover::after { transform: scaleX(1); }
.tech-num {
  font-family: var(--f-d); font-size: 11px; font-weight: 600;
  letter-spacing: 1.5px; color: var(--text-3); opacity: 0.6; margin-bottom: 18px;
}
.tech-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.tech-icon svg {
  width: 26px; height: 26px; fill: none;
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
}
.ti-blue   { background: rgba(43,108,230,0.08); }  .ti-blue svg   { stroke: var(--blue); }
.ti-green  { background: rgba(0,200,160,0.08); }   .ti-green svg  { stroke: var(--green); }
.ti-silver { background: rgba(164,187,207,0.12); } .ti-silver svg { stroke: var(--silver); }
.ti-ink    { background: rgba(11,29,58,0.07); }    .ti-ink svg    { stroke: var(--ink); }
.tech-t { font-family: var(--f-d); font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 9px; line-height: 1.3; }
.tech-d { font-size: 12.5px; color: var(--text-2); line-height: 1.8; }
@media (max-width: 900px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .tech-grid { grid-template-columns: 1fr; } }

/* ============================================================
   APPLICATIONS
============================================================ */
.apps-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.app-item {
  background: var(--ink-card); border: 1px solid var(--ink-border);
  border-radius: var(--r-md); padding: 26px 20px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center; transition: all 0.3s; cursor: default;
}
.app-item:hover {
  background: rgba(43,108,230,0.1); border-color: rgba(43,108,230,0.3);
  transform: translateY(-3px);
}
.app-icon {
  width: 46px; height: 46px; margin-bottom: 14px;
  opacity: 0.55; transition: opacity 0.25s;
}
.app-item:hover .app-icon { opacity: 1; }
.app-icon svg {
  width: 100%; height: 100%; fill: none;
  stroke: var(--silver-lt); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  transition: stroke 0.25s;
}
.app-item:hover .app-icon svg { stroke: var(--silver-lt); }
.app-name { font-family: var(--f-d); font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.78); margin-bottom: 5px; line-height: 1.3; }
.app-sub  { font-size: 11px; color: rgba(164,187,207,0.4); }
@media (max-width: 768px) { .apps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .apps-grid { grid-template-columns: repeat(2, 1fr); } }

/* ============================================================
   ADVANTAGES
============================================================ */
.adv-layout {
  display: grid; grid-template-columns: 5fr 7fr; gap: 80px; align-items: center;
}
.adv-note {
  margin-top: 28px; padding: 18px 22px;
  background: var(--surface); border-left: 3px solid var(--blue);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.adv-note p { font-size: 13.5px; color: var(--text-2); line-height: 1.7; }
.adv-note strong { color: var(--blue); font-weight: 700; }
.adv-list { display: flex; flex-direction: column; gap: 16px; }
.adv-item {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 24px; background: white; border: 1px solid var(--border);
  border-radius: var(--r-md); transition: all 0.25s;
}
.adv-item:hover { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(43,108,230,0.06); }
.adv-n {
  font-family: var(--f-d); font-size: 36px; font-weight: 700;
  color: var(--border); line-height: 1; flex-shrink: 0;
  transition: color 0.25s; min-width: 42px; letter-spacing: -1px;
}
.adv-item:hover .adv-n { color: rgba(43,108,230,0.18); }
.adv-t { font-family: var(--f-d); font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 5px; }
.adv-d { font-size: 13px; color: var(--text-2); line-height: 1.75; }
@media (max-width: 900px) { .adv-layout { grid-template-columns: 1fr; gap: 48px; } }

/* ============================================================
   PROCESS
============================================================ */
.process-flow {
  display: grid; grid-template-columns: repeat(4, 1fr);
  position: relative; gap: 0;
}
.process-flow::before {
  content: ''; position: absolute;
  top: 36px; left: calc(12.5% + 18px); right: calc(12.5% + 18px);
  height: 1px; background: linear-gradient(90deg, var(--blue), var(--silver));
  opacity: 0.25;
}
.process-step {
  text-align: center; padding: 0 20px;
  position: relative; z-index: 1;
}
.process-num {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--white); border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 22px; font-family: var(--f-d);
  font-size: 22px; font-weight: 700; color: var(--text-3);
  transition: all 0.3s; position: relative;
}
.process-step:hover .process-num {
  background: var(--blue); border-color: var(--blue);
  color: white; box-shadow: var(--sh-blue);
}
.process-t { font-family: var(--f-d); font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.process-d { font-size: 12.5px; color: var(--text-2); line-height: 1.7; }
@media (max-width: 640px) {
  .process-flow { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .process-flow::before { display: none; }
}

/* ============================================================
   NEWS
============================================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); overflow: hidden; transition: all 0.3s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--sh-md); border-color: transparent; }
.news-img {
  height: 172px; background: var(--ink); position: relative;
  overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.news-img-decor {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(43,108,230,0.05) 0%, rgba(11,29,58,0) 100%);
}
.news-img-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(164,187,207,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(164,187,207,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.news-cat {
  position: absolute; bottom: 16px; left: 20px;
  background: var(--blue); color: white;
  font-family: var(--f-d); font-size: 10px; font-weight: 600;
  padding: 3px 10px; border-radius: 100px; letter-spacing: 0.5px; text-transform: uppercase;
}
.news-body { padding: 22px; }
.news-date { font-family: var(--f-d); font-size: 11px; color: var(--text-3); margin-bottom: 9px; letter-spacing: 0.3px; }
.news-t {
  font-family: var(--f-d); font-size: 15px; font-weight: 700; color: var(--text);
  line-height: 1.5; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-s {
  font-size: 12.5px; color: var(--text-2); line-height: 1.75; margin-bottom: 18px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
@media (max-width: 768px) { .news-grid { grid-template-columns: 1fr; } }

/* ============================================================
   CTA SECTION
============================================================ */
.cta-section {
  background: linear-gradient(135deg, #06111E 0%, #0D2247 50%, #091729 100%);
  padding: 96px 0; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(43,108,230,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-h2 {
  font-family: var(--f-d); font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 700; color: white; letter-spacing: -0.5px; margin-bottom: 14px;
}
.cta-sub { font-size: 15px; color: rgba(164,187,207,0.65); margin-bottom: 52px; }
.contact-cards {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-bottom: 48px;
}
.contact-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--r-md); padding: 24px 18px; text-align: center;
  transition: all 0.25s;
}
.contact-card:hover {
  background: rgba(255,255,255,0.08); border-color: rgba(164,187,207,0.18);
  transform: translateY(-2px);
}
.cc-icon {
  width: 44px; height: 44px; background: rgba(43,108,230,0.18);
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.cc-icon svg {
  width: 20px; height: 20px; fill: none;
  stroke: var(--blue-lt); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
}
.cc-lbl {
  font-family: var(--f-d); font-size: 10px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: rgba(164,187,207,0.45); margin-bottom: 8px;
}
.cc-val {
  font-family: var(--f-d); font-size: 14px; font-weight: 600;
  color: white; line-height: 1.45;
}
.cc-val.phone { font-size: 19px; color: var(--silver-lt); letter-spacing: -0.5px; }
@media (max-width: 768px) { .contact-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .contact-cards { grid-template-columns: 1fr; } }

/* ============================================================
   FOOTER
============================================================ */
footer {
  background: var(--ink-deep); padding: 64px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.4fr;
  gap: 52px; padding-bottom: 48px;
  border-bottom: 1px solid rgba(164,187,207,0.07); margin-bottom: 32px;
}
.footer-brand .logo-cn { color: white; }
.footer-brand .logo-en { color: var(--text-3); }
.footer-desc { font-size: 13px; color: rgba(164,187,207,0.55); line-height: 1.8; margin: 18px 0 22px; max-width: 280px; }
.footer-col h4 {
  font-family: var(--f-d); font-size: 11px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: rgba(164,187,207,0.55); margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 13px; color: rgba(164,187,207,0.6);
  transition: all 0.2s; display: block;
}
.footer-col a:hover { color: rgba(255,255,255,0.85); padding-left: 4px; }
.footer-contact-item {
  display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px;
}
.fci-icon { width: 15px; height: 15px; flex-shrink: 0; margin-top: 2px; }
.fci-icon svg { width: 100%; height: 100%; fill: none; stroke: var(--blue-lt); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; opacity: 0.7; }
.fci-text { font-size: 12.5px; color: rgba(164,187,207,0.58); line-height: 1.6; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.footer-copy { font-size: 12px; color: rgba(164,187,207,0.4); }
.footer-icp-link { font-size: 12px; color: rgba(164,187,207,0.4); transition: color 0.2s; }
.footer-icp-link:hover { color: rgba(164,187,207,0.6); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ============================================================
   SCROLL ANIMATIONS
============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s var(--ease-std), transform 0.65s var(--ease-std); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ============================================================
   BACK TO TOP
============================================================ */
.back-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 900;
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--blue); color: white;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(8px);
  transition: all 0.3s; box-shadow: var(--sh-blue);
}
.back-top.on { opacity: 1; pointer-events: all; transform: none; }
.back-top:hover { background: var(--blue-lt); transform: translateY(-2px); }
.back-top svg { width: 18px; height: 18px; fill: none; stroke: white; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ============================================================
   PAGE-SPECIFIC: Products grid (products.html)
============================================================ */
.pc-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
@media (max-width: 1024px) { .pc-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .pc-grid { grid-template-columns: 1fr; } }
.pc-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; transition: all .35s var(--ease-std); display: block; text-decoration: none; color: inherit; }
.pc-card:hover { box-shadow: var(--sh-md); transform: translateY(-6px); }
.pc-card img { width: 100%; height: 220px; object-fit: cover; }
.pc-card-body { padding: 22px 22px 26px; }
.pc-card-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text); }

/* ============================================================
   PAGE-SPECIFIC: Cases grid (cases.html)
============================================================ */
.cs-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
@media (max-width: 1024px) { .cs-grid { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 768px) { .cs-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .cs-grid { grid-template-columns: 1fr; } }
.cs-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; transition: all .3s var(--ease-std); cursor: pointer; }
.cs-card:hover { box-shadow: var(--sh-md); transform: translateY(-4px); }

/* ============================================================
   PAGE-SPECIFIC: Contact info grid (contact.html)
============================================================ */
.ci-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; margin-bottom: 48px; }
@media (max-width: 1024px) { .ci-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .ci-grid { grid-template-columns: 1fr; } }
.ci-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md); padding: 30px 22px; text-align: center; transition: all .3s var(--ease-std); cursor: default; }
.ci-card:hover { box-shadow: var(--sh-sm); }

/* ============================================================
   PAGE-SPECIFIC: News list (news.html)
============================================================ */
.nl-item { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--border); text-decoration: none; color: inherit; transition: all .25s var(--ease-std); }
.nl-item:hover { padding-left: 12px; }
.nl-arrow { font-family: var(--f-d); font-size: 13px; font-weight: 600; color: var(--blue); white-space: nowrap; transition: transform .2s var(--ease-std); }
.nl-item:hover .nl-arrow { transform: translateX(4px); }

/* ============================================================
   PAGE-SPECIFIC: Inner page hero (all sub pages)
============================================================ */
.hero-pg { display: block; }