/* ==========================================================================
   DAOSHEN Technology — bilingual corporate site
   Design system: Enterprise Gateway / Trust & Authority
   No external dependencies. All assets are local.
   ========================================================================== */

:root {
  --navy-950: #06131f;
  --navy-900: #0a1c2c;
  --navy-800: #102b41;
  --navy-700: #1b3e5a;
  --brand: #0b6fa4;
  --brand-dark: #075880;
  --brand-soft: #e8f4fa;
  --accent: #37c6d8;
  --ink: #0f172a;
  --text: #475569;
  --muted: #5c6e80;
  --line: #e3eaf1;
  --surface: #ffffff;
  --tint: #f5f8fb;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 12px rgba(10, 28, 44, .06);
  --shadow-md: 0 16px 44px rgba(10, 28, 44, .11);
  --container: 1200px;
  --font: "Inter", "Segoe UI Variable Display", "Segoe UI", -apple-system,
    BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 76px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
}
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
svg { display: block; }
::selection { background: var(--accent); color: var(--navy-950); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}
@media (min-width: 768px) { .container { width: min(100% - 64px, var(--container)); } }
@media (min-width: 1200px) { .container { width: min(100% - 96px, var(--container)); } }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 999;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: none; }

/* ---------- shared atoms ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: .01em;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .22s var(--ease), color .22s var(--ease),
    border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 22px rgba(11, 111, 164, .22); }
.btn-primary:hover { background: var(--brand-dark); box-shadow: 0 12px 26px rgba(11, 111, 164, .3); transform: translateY(-2px); }
.btn-ghost { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .32); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .6); }
.btn-light { background: #fff; color: var(--brand-dark); }
.btn-light:hover { background: #eaf6fc; transform: translateY(-2px); }
.btn-sm { min-height: 40px; padding: 0 18px; font-size: 14px; }

.section { padding: 104px 0; }
.section--tint { background: var(--tint); }
.section-head { max-width: 780px; margin-bottom: 48px; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .section-kicker { justify-content: center; }
.section-head--center .section-desc { margin-inline: auto; }
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--brand);
  font-size: 12.5px;
  font-weight: 750;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.section-kicker::before { content: ""; width: 26px; height: 2px; background: var(--accent); flex: none; }
.section-kicker--light { color: var(--accent); }
.section-title { font-size: clamp(30px, 3.6vw, 44px); }
.section-title--light { color: #fff; }
.section-desc { margin-top: 16px; max-width: 680px; color: var(--muted); font-size: 17px; }
.section-desc--light { color: rgba(255, 255, 255, .72); }
.body-text { margin-top: 18px; font-size: 15.5px; }

/* reveal on scroll — content stays visible when JS is off */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  transition-delay: var(--d, 0ms);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .93);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(6, 19, 31, .09); border-bottom-color: var(--line); }
.header-inner { display: flex; align-items: center; gap: 28px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.12; }
.brand-text strong { color: var(--navy-900); font-size: 18px; font-weight: 800; letter-spacing: .06em; }
.brand-text small { color: var(--muted); font-size: 10.5px; font-weight: 600; letter-spacing: .16em; margin-top: 3px; }
.primary-nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 26px; }
.nav-link {
  position: relative;
  display: block;
  padding: 8px 0;
  color: #334155;
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transition: width .25s var(--ease);
}
.nav-link:hover, .nav-link.is-active { color: var(--brand); }
.nav-link:hover::after, .nav-link.is-active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 16px; flex: none; }
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}
.lang-switch span { color: #cbd5e1; font-size: 12px; }
.lang-link { color: var(--muted); font-size: 12.5px; font-weight: 700; padding: 2px 3px; transition: color .2s; }
.lang-link:hover { color: var(--brand); }
.lang-link.is-active { color: var(--brand); }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
.nav-toggle span { width: 18px; height: 2px; border-radius: 2px; background: var(--navy-900); transition: transform .25s var(--ease), opacity .2s; }
.site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero { position: relative; isolation: isolate; overflow: hidden; background: var(--navy-950); color: #fff; }
.hero-bg { position: absolute; inset: 0; z-index: -2; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 42%; opacity: .34; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(100deg, rgba(6, 19, 31, .97) 0%, rgba(6, 19, 31, .88) 42%, rgba(6, 19, 31, .48) 100%),
    radial-gradient(700px 480px at 78% 30%, rgba(55, 198, 216, .16), transparent 70%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .22;
  background-image: linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, #000, transparent 75%);
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 75%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 56px;
  align-items: center;
  padding-top: 92px;
  padding-bottom: 148px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 7px 16px;
  border: 1px solid rgba(55, 198, 216, .34);
  border-radius: 999px;
  background: rgba(55, 198, 216, .09);
  color: #b9eef5;
  font-size: 12.5px;
  font-weight: 650;
  letter-spacing: .08em;
}
.eyebrow-line { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(55, 198, 216, .18); }
.hero h1 {
  margin-top: 26px;
  color: #fff;
  font-size: clamp(38px, 5.1vw, 66px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.035em;
}
.hero h1 .accent {
  background: linear-gradient(100deg, #6fe0ec, #37c6d8 55%, #4aa8e8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead { margin-top: 24px; max-width: 560px; color: rgba(255, 255, 255, .76); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 14px 26px; margin-top: 40px; }
.hero-trust li { display: inline-flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, .68); font-size: 13.5px; }
.hero-trust svg { width: 16px; height: 16px; color: var(--accent); flex: none; }
.hero-visual { position: relative; padding: 18px 34px 18px 0; }
.hero-photo {
  position: relative;
  height: 470px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .18);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .4);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(6, 19, 31, .55)); }
.stat-float {
  position: absolute;
  left: -28px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 190px;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 14px;
  background: rgba(12, 32, 49, .84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .28);
}
.stat-float--top { top: 46px; }
.stat-float--bottom { bottom: 40px; left: auto; right: 0; }
.stat-float strong { color: #fff; font-size: 27px; font-weight: 800; line-height: 1.1; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stat-float strong span { color: var(--accent); }
.stat-float p { color: rgba(255, 255, 255, .72); font-size: 12.5px; }
.hero-scroll { position: absolute; left: 50%; bottom: 88px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; color: rgba(255, 255, 255, .5); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; }
.hero-scroll i { width: 1px; height: 34px; background: linear-gradient(var(--accent), transparent); }

/* ---------- stats bar ---------- */
.stats-bar { position: relative; z-index: 3; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: -58px;
  padding: 30px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-md);
}
.stat { padding: 6px 20px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; color: var(--ink); font-size: clamp(27px, 3vw, 38px); font-weight: 800; line-height: 1.2; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.stat strong span { color: var(--brand); }
.stat p { margin-top: 4px; color: var(--muted); font-size: 14px; }
.stat .stat-sub { color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 74px; align-items: center; }
.about-media { position: relative; }
.about-media > img { width: 100%; height: 510px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-md); }
.about-media::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); background: linear-gradient(180deg, transparent 60%, rgba(6, 19, 31, .28)); pointer-events: none; }
.about-badge {
  position: absolute;
  right: -22px;
  bottom: 34px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  padding: 18px 26px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 16px 34px rgba(11, 111, 164, .3);
}
.about-badge strong { font-size: 30px; font-weight: 800; line-height: 1.1; letter-spacing: -.03em; }
.about-badge span { font-size: 12px; opacity: .85; letter-spacing: .1em; text-transform: uppercase; }
.value-list { margin-top: 32px; display: grid; gap: 4px; }
.value-list li { display: flex; gap: 18px; align-items: flex-start; padding: 15px 0; border-bottom: 1px solid var(--line); }
.value-list li:last-child { border-bottom: 0; }
.value-num { flex: none; color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: .06em; padding-top: 3px; }
.value-list h3 { font-size: 16.5px; }
.value-list p { margin-top: 3px; color: var(--muted); font-size: 14.5px; }
.motto {
  margin: 30px 0 0;
  padding: 16px 22px;
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: var(--brand-soft);
  color: var(--navy-800);
  font-size: 15.5px;
  font-weight: 600;
}

/* ---------- business cards ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.biz-card {
  position: relative;
  display: block;
  height: 372px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--navy-900);
  color: #fff;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.biz-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.biz-card > img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.biz-card:hover > img { transform: scale(1.07); }
.biz-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 19, 31, .12) 0%, rgba(6, 19, 31, .44) 45%, rgba(6, 19, 31, .94) 100%); transition: background .3s; }
.biz-card-body { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 26px 24px 24px; }
.biz-num { display: inline-block; margin-bottom: 12px; padding: 3px 9px; border: 1px solid rgba(255, 255, 255, .4); border-radius: 6px; color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.biz-card h3 { color: #fff; font-size: 20px; letter-spacing: -.01em; }
.biz-card .biz-short { margin-top: 8px; color: rgba(255, 255, 255, .82); font-size: 13.5px; line-height: 1.6; }
.biz-card .biz-more {
  display: flex;
  align-items: center;
  gap: 7px;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 650;
  transition: max-height .3s var(--ease), opacity .25s var(--ease), margin-top .3s var(--ease);
}
.biz-card .biz-more svg { width: 15px; height: 15px; }
.biz-card:hover .biz-more, .biz-card:focus-visible .biz-more { max-height: 28px; margin-top: 14px; opacity: 1; }

/* ---------- business detail tabs ---------- */
.detail-layout { display: grid; grid-template-columns: 270px 1fr; gap: 26px; align-items: start; }
.detail-tabs { display: flex; flex-direction: column; gap: 8px; }
.detail-tab {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 15px 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  font-size: 14.5px;
  font-weight: 650;
  text-align: left;
  transition: background-color .22s var(--ease), color .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.detail-tab:hover { background: #fff; color: var(--ink); }
.detail-tab[aria-selected="true"] { background: #fff; border-color: var(--line); box-shadow: var(--shadow-sm); color: var(--ink); }
.tab-num { flex: none; color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .06em; }
.tab-bar { flex: none; width: 3px; height: 22px; border-radius: 3px; background: transparent; margin-left: auto; }
.detail-tab[aria-selected="true"] .tab-bar { background: var(--accent); }
.detail-panel {
  display: none;
  grid-template-columns: 1.08fr .92fr;
  gap: 30px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.detail-panel.is-active { display: grid; animation: panelIn .4s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.detail-panel h3 { font-size: 25px; }
.detail-panel .detail-lead { margin-top: 14px; color: var(--text); font-size: 15px; }
.detail-metrics { display: flex; gap: 28px; margin-top: 22px; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-metrics div strong { display: block; color: var(--brand); font-size: 23px; font-weight: 800; line-height: 1.2; letter-spacing: -.02em; }
.detail-metrics div span { color: var(--muted); font-size: 12.5px; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 12px; margin-top: 20px; }
.feature-list li { display: flex; align-items: flex-start; gap: 8px; color: var(--text); font-size: 13.5px; }
.feature-list svg { width: 15px; height: 15px; margin-top: 4px; color: var(--brand); flex: none; }
.chip-wrap { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.chip { padding: 5px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--tint); color: var(--text); font-size: 12px; font-weight: 600; }
.chip-label { margin-top: 22px; margin-bottom: -10px; color: var(--muted); font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.detail-media { position: relative; min-height: 340px; border-radius: 12px; overflow: hidden; }
.detail-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.detail-media figcaption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 10px 14px;
  border-radius: 8px;
  background: rgba(6, 19, 31, .76);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
}

/* ---------- why us ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-card {
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.why-card:hover { transform: translateY(-4px); border-color: #c8dfeb; box-shadow: var(--shadow-md); }
.why-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}
.why-icon svg { width: 23px; height: 23px; }
.why-card h3 { margin-top: 20px; font-size: 18px; }
.why-card p { margin-top: 9px; color: var(--muted); font-size: 14.5px; }

/* ---------- process ---------- */
.process-flow { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; counter-reset: step; }
.process-step { position: relative; padding: 0 10px; text-align: center; }
.process-flow::before { content: ""; position: absolute; left: 8%; right: 8%; top: 27px; height: 1px; background: linear-gradient(90deg, var(--accent), var(--line) 55%, var(--line)); }
.step-dot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin: 0 auto 20px;
  border: 1px solid #cfe2ee;
  border-radius: 50%;
  background: #fff;
  color: var(--brand);
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(11, 111, 164, .1);
}
.process-step h3 { font-size: 15.5px; }
.process-step p { margin-top: 7px; color: var(--muted); font-size: 13px; line-height: 1.6; }

/* ---------- global ---------- */
.global { position: relative; overflow: hidden; padding: 100px 0; background: var(--navy-950); color: #fff; }
.global::before { content: ""; position: absolute; inset: 0; background: radial-gradient(700px 420px at 78% 34%, rgba(11, 111, 164, .28), transparent 72%); }
.global > * { position: relative; }
.global-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.global-big { display: flex; align-items: baseline; gap: 16px; margin-top: 34px; }
.global-big strong { color: #fff; font-size: clamp(72px, 10vw, 118px); font-weight: 800; line-height: .95; letter-spacing: -.06em; font-variant-numeric: tabular-nums; }
.global-big strong span { color: var(--accent); }
.global-big p { max-width: 200px; color: rgba(255, 255, 255, .7); font-size: 15px; line-height: 1.5; }
.global-visual { display: flex; justify-content: center; }
.global-visual svg { width: min(100%, 460px); height: auto; }
.global-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 64px; }
.global-card { padding: 26px 24px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 14px; background: rgba(255, 255, 255, .045); backdrop-filter: blur(6px); }
.global-card svg { width: 24px; height: 24px; color: var(--accent); }
.global-card h3 { margin-top: 16px; color: #fff; font-size: 17px; }
.global-card p { margin-top: 8px; color: rgba(255, 255, 255, .66); font-size: 14px; }

/* ---------- history ---------- */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 6%; right: 6%; top: 15px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--line)); }
.timeline li { position: relative; padding-top: 46px; }
.timeline li::before { content: ""; position: absolute; top: 8px; left: 0; width: 16px; height: 16px; border: 4px solid var(--brand-soft); border-radius: 50%; background: var(--brand); box-sizing: content-box; }
.timeline .year { color: var(--brand); font-size: 30px; font-weight: 800; line-height: 1; letter-spacing: -.03em; }
.timeline h3 { margin-top: 12px; font-size: 16px; }
.timeline p { margin-top: 6px; color: var(--muted); font-size: 13.5px; }

/* ---------- partners ---------- */
.partner-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 96px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: box-shadow .24s var(--ease), transform .24s var(--ease);
}
.partner-item:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.partner-item img { max-height: 52px; width: auto; filter: grayscale(1); opacity: .7; transition: filter .3s var(--ease), opacity .3s var(--ease); }
.partner-item:hover img { filter: none; opacity: 1; }

/* ---------- cta strip ---------- */
.cta-strip { background: linear-gradient(105deg, var(--brand-dark), var(--brand) 60%, #1486b8); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 50px 0; }
.cta-inner h2 { color: #fff; font-size: clamp(24px, 2.7vw, 34px); }
.cta-inner p { margin-top: 8px; color: rgba(255, 255, 255, .82); font-size: 15px; }

/* ---------- contact ---------- */
.office-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.office-card { padding: 26px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: box-shadow .24s var(--ease), transform .24s var(--ease); }
.office-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.office-card h3 { font-size: 18px; }
.office-card .office-city { margin-top: 4px; color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.office-lines { margin-top: 20px; display: grid; gap: 14px; }
.office-lines li { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; line-height: 1.6; }
.office-lines svg { width: 16px; height: 16px; margin-top: 3px; color: var(--brand); flex: none; }
.office-lines a { color: var(--text); transition: color .2s; }
.office-lines a:hover { color: var(--brand); text-decoration: underline; }
.qr-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 44px; margin-top: 52px; padding-top: 42px; border-top: 1px solid var(--line); }
.qr-item { display: flex; align-items: center; gap: 18px; }
.qr-item img { width: 108px; height: 108px; padding: 7px; border: 1px solid var(--line); border-radius: 10px; background: #fff; object-fit: contain; }
.qr-item strong { display: block; color: var(--ink); font-size: 16px; }
.qr-item p { margin-top: 5px; color: var(--muted); font-size: 13.5px; }

/* ---------- footer ---------- */
.site-footer { background: var(--navy-950); color: rgba(255, 255, 255, .68); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.15fr; gap: 40px; padding-bottom: 56px; }
.footer-brand .brand-text strong { color: #fff; }
.footer-brand .brand-text small { color: rgba(255, 255, 255, .55); }
.footer-brand > p { margin-top: 20px; max-width: 320px; font-size: 14px; line-height: 1.8; }
.site-footer h2 { margin-bottom: 18px; color: #fff; font-size: 15px; letter-spacing: .02em; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a, .footer-col li { font-size: 14px; }
.footer-col a { transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; }
.footer-contact svg { width: 16px; height: 16px; margin-top: 4px; color: var(--accent); flex: none; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 13px; }
.footer-bottom a { color: rgba(255, 255, 255, .8); }
.footer-bottom a:hover { color: var(--accent); }

/* ---------- back to top ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--brand);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), background-color .2s;
}
.to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { background: var(--brand-soft); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- SEO landing pages ---------- */
.page-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 42px 0 64px;
  background: var(--navy-950);
  color: #fff;
}
.page-hero .hero-bg img { opacity: .26; }
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(100deg, rgba(6, 19, 31, .97) 0%, rgba(6, 19, 31, .9) 48%, rgba(6, 19, 31, .58) 100%),
    radial-gradient(620px 420px at 82% 26%, rgba(55, 198, 216, .18), transparent 70%);
}
.page-hero .container { position: relative; }
.page-hero h1 { margin-top: 18px; color: #fff; font-size: clamp(32px, 4.2vw, 54px); font-weight: 800; letter-spacing: -.035em; }
.page-lead { margin-top: 20px; max-width: 760px; color: rgba(255, 255, 255, .78); font-size: 17px; line-height: 1.8; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 12.5px; color: rgba(255, 255, 255, .5); }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: rgba(255, 255, 255, .32); }
.breadcrumb a { color: rgba(255, 255, 255, .74); transition: color .2s; }
.breadcrumb a:hover { color: var(--accent); }
.page-stats { display: flex; flex-wrap: wrap; gap: 20px 44px; margin-top: 34px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .14); }
.page-stats strong { display: block; color: #fff; font-size: 25px; font-weight: 800; letter-spacing: -.03em; }
.page-stats span { color: rgba(255, 255, 255, .58); font-size: 12.5px; }

.page-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 56px; align-items: start; }
.page-intro { padding-bottom: 34px; margin-bottom: 42px; border-bottom: 1px solid var(--line); }
.page-intro p { font-size: 16.5px; line-height: 1.9; color: var(--text); }
.page-intro p + p { margin-top: 16px; }
.page-block + .page-block { margin-top: 56px; }
.block-head { margin-bottom: 26px; }
.block-head h2 { font-size: clamp(23px, 2.4vw, 31px); }
.block-head .section-desc { margin-top: 12px; font-size: 15.5px; }

.info-grid { display: grid; gap: 16px; }
.info-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.info-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.info-card:hover { border-color: #c8dfeb; box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.info-card h3 { font-size: 16.5px; }
.info-card p { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.chip-wrap--page { margin-top: 0; }
.tick-list { display: grid; gap: 11px; margin-top: 18px; }
.tick-list li { display: flex; align-items: flex-start; gap: 9px; color: var(--text); font-size: 14.5px; }
.tick-list svg { width: 16px; height: 16px; margin-top: 4px; color: var(--brand); flex: none; }

.page-aside { position: sticky; top: calc(var(--header-h) + 24px); display: grid; gap: 18px; }
.aside-card { padding: 26px 24px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-sm); }
.aside-card h2 { font-size: 17px; }
.aside-card > p { margin-top: 8px; color: var(--muted); font-size: 13.5px; }
.aside-links { display: grid; gap: 2px; margin-top: 16px; }
.aside-links a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-size: 14px;
  transition: color .2s;
}
.aside-links li:last-child a { border-bottom: 0; }
.aside-links a:hover { color: var(--brand); }
.aside-links a span { color: var(--muted); font-size: 12.5px; white-space: nowrap; }

/* service entry cards on the homepage */
.sv-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.sv-card {
  display: flex;
  flex-direction: column;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.sv-card:hover { transform: translateY(-4px); border-color: #c8dfeb; box-shadow: var(--shadow-md); }
.sv-index { color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.sv-card h3 { margin-top: 12px; font-size: 20px; }
.sv-desc { margin-top: 10px; color: var(--muted); font-size: 14.5px; }
.sv-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.sv-tags span { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--tint); color: var(--text); font-size: 11.5px; font-weight: 600; }
.sv-link { display: flex; align-items: center; gap: 7px; margin-top: 20px; color: var(--brand); font-size: 13.5px; font-weight: 650; }
.sv-link svg { width: 15px; height: 15px; transition: transform .22s var(--ease); }
.sv-card:hover .sv-link svg { transform: translateX(4px); }

/* FAQ accordion (content is always in the DOM) */
.faq-list { display: grid; gap: 12px; max-width: 900px; margin-inline: auto; }
.faq-item { padding: 0 22px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.faq-item[open] { border-color: #c8dfeb; box-shadow: var(--shadow-sm); }
.faq-item summary { display: flex; align-items: center; gap: 14px; padding: 19px 0; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q { flex: none; color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .06em; }
.faq-question { color: var(--ink); font-size: 15.5px; font-weight: 650; line-height: 1.5; }
.faq-icon { width: 18px; height: 18px; margin-left: auto; color: var(--brand); flex: none; transition: transform .25s var(--ease); }
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 0 20px 40px; }
.faq-answer p { color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.faq-block .faq-list { max-width: none; margin-inline: 0; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .page-layout { grid-template-columns: 1fr; gap: 40px; }
  .page-aside { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  .page-hero { padding: 30px 0 46px; }
  .page-stats { gap: 16px 26px; }
  .page-stats strong { font-size: 21px; }
  .info-grid--2, .info-grid--3, .sv-grid, .page-aside { grid-template-columns: 1fr; }
  .page-block + .page-block { margin-top: 42px; }
  .faq-item { padding: 0 16px; }
  .faq-answer { padding-left: 0; }
}


@media (max-width: 1100px) {
  .nav-list { gap: 18px; }
  .nav-link { font-size: 13.5px; }
  .header-inner { gap: 18px; }
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-card { height: 330px; }
  .office-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .detail-layout { grid-template-columns: 220px 1fr; }
  .about-grid { gap: 46px; }
}

@media (max-width: 1023px) {
  :root { --header-h: 68px; }
  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transition: max-height .32s var(--ease);
  }
  .site-header.nav-open .primary-nav { max-height: min(70vh, 540px); overflow-y: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 10px 24px 20px; }
  .nav-link { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
  .nav-link::after { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; padding-top: 68px; padding-bottom: 120px; }
  .hero-visual { padding: 0 34px 0 0; max-width: 640px; }
  .hero-photo { height: 360px; }
  .hero-scroll { display: none; }
  .stats-grid { margin-top: -40px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-media > img { height: 380px; }
  .about-badge { right: 18px; }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .detail-tab { flex: none; white-space: nowrap; }
  .tab-bar { display: none; }
  .detail-panel { grid-template-columns: 1fr; }
  .detail-media { min-height: 280px; order: -1; }
  .global-grid { grid-template-columns: 1fr; }
  .global-visual { order: -1; }
  .global-visual svg { width: min(100%, 380px); }
  .process-flow { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .process-flow::before { display: none; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .section { padding: 72px 0; }
  .section-head { margin-bottom: 34px; }
  .header-actions .btn { display: none; }
  .hero-grid { padding-top: 54px; padding-bottom: 96px; }
  .hero h1 { font-size: clamp(34px, 8.6vw, 48px); }
  .hero-lead { font-size: 15.5px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-photo { height: 290px; }
  .stat-float { min-width: 158px; padding: 12px 15px; }
  .stat-float strong { font-size: 21px; }
  .stat-float--top { top: 20px; left: -14px; }
  .stat-float--bottom { bottom: 18px; right: -10px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 0; padding: 24px 8px; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .biz-grid { grid-template-columns: 1fr; }
  .biz-card { height: 300px; }
  .biz-card .biz-short { max-width: 90%; }
  .feature-list { grid-template-columns: 1fr; }
  .detail-panel { padding: 22px; }
  .why-grid, .office-grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .timeline { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .timeline::before { display: none; }
  .global { padding: 72px 0; }
  .global-cards { grid-template-columns: 1fr; margin-top: 38px; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-item { height: 82px; padding: 14px; }
  .cta-inner { flex-direction: column; align-items: flex-start; padding: 38px 0; }
  .qr-row { gap: 26px; justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 40px; }
  .footer-bottom { flex-direction: column; }
  .to-top { right: 16px; bottom: 16px; }
}

@media (max-width: 420px) {
  .brand-text strong { font-size: 16px; }
  .brand-mark { width: 34px; height: 34px; }
  .lang-switch { padding: 3px 8px; }
  .hero-trust { gap: 10px 18px; }
  .process-flow, .timeline { grid-template-columns: 1fr; }
  .qr-item { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .site-header, .to-top, .hero-scroll, .cta-strip { display: none; }
  .hero { background: var(--navy-950) !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}