/* ============================================================
   环球云计算 GLOBAL YUN — Design System
   参考 Cloudflare / Stripe / Google Cloud 的简洁优雅风格
   ============================================================ */

:root {
  --ink: #0d1b3e;
  --body: #46536b;
  --muted: #8b95a7;
  --primary: #1157d8;
  --primary-dark: #0d46b2;
  --primary-tint: #eef4ff;
  --border: #e4e9f2;
  --border-strong: #d4dce9;
  --surface: #ffffff;
  --alt: #f7f9fd;
  --footer: #0a1330;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(13, 27, 62, 0.05);
  --shadow-md: 0 16px 40px -12px rgba(13, 27, 62, 0.14);
  --font: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --header-h: 68px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font);
  color: var(--body);
  font-size: 16px;
  line-height: 1.7;
  background: var(--surface);
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img, svg { display: block; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 { color: var(--ink); font-weight: 650; letter-spacing: -0.02em; line-height: 1.25; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

/* ---------------- Sections ---------------- */
.section { padding: clamp(60px, 8vw, 104px) 0; }
.section--alt { background: var(--alt); }

.section-head { max-width: 660px; margin: 0 auto clamp(40px, 5vw, 64px); text-align: center; }
.section-head--left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1.5px;
  background: var(--primary);
  border-radius: 2px;
}
.section-head--left .eyebrow::before { display: none; }
.section-head--center .eyebrow::after {
  content: "";
  width: 22px;
  height: 1.5px;
  background: var(--primary);
  border-radius: 2px;
}

.section-head h2 { font-size: clamp(26px, 3.6vw, 38px); margin-bottom: 14px; }
.section-head p { font-size: 16.5px; color: var(--muted); }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all 0.22s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform 0.22s ease; }
.btn:hover svg { transform: translateX(3px); }

.btn--primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px -6px rgba(17, 87, 216, 0.45); }
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); }

.btn--light { background: #fff; color: var(--primary); }
.btn--light:hover { transform: translateY(-1px); box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.35); }

.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.btn--outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, 0.08); }

.btn--sm { height: 38px; padding: 0 20px; font-size: 14px; }

/* ---------------- Header ---------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--border); box-shadow: 0 4px 20px -12px rgba(13, 27, 62, 0.12); }

.header-inner { display: flex; align-items: center; height: 100%; gap: 36px; }

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { width: 34px; height: 34px; color: var(--primary); }
.brand-text { line-height: 1.15; }
.brand-name { font-size: 17px; font-weight: 700; color: var(--ink); letter-spacing: 0.01em; }
.brand-sub { font-size: 10px; font-weight: 600; letter-spacing: 0.22em; color: var(--muted); text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 4px; height: 100%; }
.nav-item { position: relative; height: 100%; display: flex; align-items: center; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 100%;
  padding: 0 15px;
  font-size: 15px;
  font-weight: 550;
  color: var(--ink);
  transition: color 0.2s;
}
.nav-link .caret { width: 10px; height: 10px; color: var(--muted); transition: transform 0.2s; }
.nav-item:hover .nav-link, .nav-link.is-active { color: var(--primary); }
.nav-item:hover .caret { transform: rotate(180deg); }

/* dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 18px;
  width: 560px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  transition: background 0.15s;
}
.dropdown-link:hover { background: var(--primary-tint); }
.dropdown-link .dl-icon {
  width: 36px; height: 36px;
  border-radius: 9px;
  background: var(--primary-tint);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.dropdown-link .dl-icon svg { width: 18px; height: 18px; }
.dropdown-link strong { display: block; font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.35; }
.dropdown-link span { display: block; font-size: 12px; color: var(--muted); line-height: 1.4; }

.header-actions { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 650;
  color: var(--ink);
  white-space: nowrap;
}
.header-phone svg { width: 16px; height: 16px; color: var(--primary); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: all 0.25s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero (home) ---------------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(56px, 8vw, 96px)) 0 clamp(56px, 7vw, 88px);
  background: linear-gradient(180deg, #f3f7ff 0%, #fbfcff 70%, #fff 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(17, 87, 216, 0.13) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.12fr 0.88fr; gap: clamp(36px, 5vw, 72px); align-items: center; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px 7px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  font-size: 13px;
  font-weight: 550;
  color: var(--body);
  box-shadow: var(--shadow-sm);
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.hero-badge .dot svg { width: 11px; height: 11px; }

.hero h1 {
  font-size: clamp(34px, 5.2vw, 56px);
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.16;
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  color: var(--primary);
  position: relative;
  white-space: nowrap;
}
.hero-sub { font-size: clamp(15.5px, 1.6vw, 17.5px); color: var(--body); max-width: 520px; margin-bottom: 36px; }
.hero-sub .sep { color: #c3cddb; margin: 0 6px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* hero visual */
.hero-visual { position: relative; display: flex; justify-content: center; }
.globe-svg { width: min(100%, 460px); height: auto; }
.globe-orbit { transform-origin: 230px 230px; animation: orbit 40s linear infinite; }
.globe-orbit--rev { animation-direction: reverse; animation-duration: 55s; }
@keyframes orbit { to { transform: rotate(360deg); } }
.globe-pulse { animation: pulse 3s ease-in-out infinite; transform-origin: center; }
.globe-pulse:nth-child(2) { animation-delay: 0.6s; }
.globe-pulse:nth-child(3) { animation-delay: 1.2s; }
@keyframes pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }

/* 数据流动画(沿网络连线流动的亮点) */
.flow-line {
  stroke-dasharray: 4 116;
  animation: flowdash 3.2s linear infinite;
}
.flow-line--fast { animation-duration: 2.2s; }
@keyframes flowdash { to { stroke-dashoffset: -120; } }

/* ---------------- Stats strip ---------------- */
.stats-strip { border-block: 1px solid var(--border); background: #fff; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: clamp(28px, 3.5vw, 44px) 12px;
  text-align: center;
  position: relative;
}
.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  height: 44px;
  width: 1px;
  background: var(--border);
}
.stat-value { font-size: clamp(30px, 3.6vw, 44px); font-weight: 700; color: var(--ink); letter-spacing: -0.02em; line-height: 1.1; }
.stat-value .unit { font-size: 0.45em; font-weight: 600; color: var(--primary); margin-left: 3px; }
.stat-label { font-size: 13.5px; color: var(--muted); margin-top: 6px; }

/* ---------------- Cards ---------------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(17, 87, 216, 0.35);
  box-shadow: var(--shadow-md);
}

.icon-tile {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: all 0.25s ease;
}
.icon-tile svg { width: 22px; height: 22px; }
.card:hover .icon-tile { background: var(--primary); color: #fff; }

.card h3 { font-size: 18.5px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--muted); flex: 1; }

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.card-link svg { width: 15px; height: 15px; transition: transform 0.2s; }
.card:hover .card-link svg { transform: translateX(3px); }

.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------------- Capability rows ---------------- */
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.cap-card {
  display: flex;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.cap-card:hover { transform: translateY(-4px); border-color: rgba(17, 87, 216, 0.35); box-shadow: var(--shadow-md); }
.cap-num {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.85;
  padding-top: 3px;
  font-variant-numeric: tabular-nums;
}
.cap-card h3 { font-size: 18px; margin-bottom: 8px; }
.cap-card p { font-size: 14.5px; color: var(--muted); }

/* ---------------- Tabs ---------------- */
.tab-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.tab-btn {
  height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--body);
  font-size: 14.5px;
  font-weight: 550;
  transition: all 0.2s ease;
}
.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px -6px rgba(17, 87, 216, 0.4);
}
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp 0.4s ease; }

/* ---------------- Product card ---------------- */
.product-card .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.tag {
  font-size: 12px;
  font-weight: 550;
  color: var(--body);
  background: var(--alt);
  border: 1px solid var(--border);
  padding: 3.5px 11px;
  border-radius: 999px;
  white-space: nowrap;
}
.product-card .hot-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #d9500d;
  background: #fff3ea;
  border: 1px solid #ffd9c2;
  padding: 2.5px 9px;
  border-radius: 999px;
}
.product-card { position: relative; }
.product-count { text-align: center; color: var(--muted); font-size: 14px; margin: -26px 0 30px; }

/* ---------------- Cases ---------------- */
.case-card { padding: 0; overflow: hidden; }
.case-head {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.case-industry {
  font-size: 12.5px;
  font-weight: 650;
  color: var(--primary);
  background: var(--primary-tint);
  border: 1px solid #dbe8ff;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.case-head h3 { font-size: 16.5px; line-height: 1.4; }
.case-body { padding: 22px 28px 26px; display: flex; flex-direction: column; gap: 14px; }
.case-block strong {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 5px;
}
.case-block p { font-size: 14px; color: var(--body); line-height: 1.65; }
.case-metrics { border-top: 1px dashed var(--border-strong); padding-top: 16px; margin-top: auto; display: flex; flex-direction: column; gap: 8px; }
.case-metrics li { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 550; color: var(--ink); }
.case-metrics svg { width: 16px; height: 16px; color: #16a34a; flex-shrink: 0; }

/* ---------------- Solution cards ---------------- */
.sol-card { position: relative; }
.sol-badge {
  font-size: 11.5px;
  font-weight: 650;
  color: var(--primary);
  background: var(--primary-tint);
  border-radius: 999px;
  padding: 3px 10px;
  align-self: flex-start;
  margin-bottom: 16px;
}
.sol-badge--gen { color: #0f766e; background: #ecfdf8; }
.sol-card h3 { font-size: 18px; margin-bottom: 8px; }
.sol-card .card-link { margin-top: 16px; }

/* ---------------- Trust ---------------- */
.trust-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 40px; }
.trust-item {
  text-align: center;
  padding: 30px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}
.trust-value { font-size: clamp(30px, 3.4vw, 40px); font-weight: 700; color: var(--ink); letter-spacing: -0.02em; }
.trust-value .unit { font-size: 0.5em; color: var(--primary); font-weight: 650; }
.trust-label { font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.industry-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.industry-chips .chip {
  padding: 8px 20px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 550;
  color: var(--body);
  transition: all 0.2s;
}
.industry-chips .chip:hover { border-color: var(--primary); color: var(--primary); }

/* ---------------- Partners ---------------- */
.partner-group { margin-bottom: 40px; }
.partner-group h3 {
  font-size: 15px;
  font-weight: 650;
  color: var(--muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.partner-group h3::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.partner-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.partner-chip {
  display: inline-flex;
  align-items: center;
  height: 46px;
  padding: 0 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
  transition: all 0.2s;
}
.partner-chip:hover { border-color: rgba(17, 87, 216, 0.4); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ---------------- News ---------------- */
.news-card { padding: 0; overflow: hidden; }
.news-date { font-size: 13px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; padding: 26px 28px 0; }
.news-card h3 { font-size: 17px; padding: 10px 28px 0; line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--muted); padding: 10px 28px 22px; }
.news-card .card-link { padding: 0 28px 26px; margin-top: 0; }

/* ---------------- CTA band ---------------- */
.cta-band {
  position: relative;
  border-radius: 22px;
  background:
    radial-gradient(ellipse 60% 90% at 85% 10%, rgba(17, 87, 216, 0.45), transparent 60%),
    linear-gradient(135deg, #0e1c46 0%, #0a1330 100%);
  padding: clamp(48px, 6vw, 72px) clamp(32px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 70% 100% at 80% 50%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 80% 50%, #000, transparent 75%);
  pointer-events: none;
}
.cta-band h2 { color: #fff; font-size: clamp(24px, 3vw, 32px); margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, 0.72); font-size: 15.5px; max-width: 560px; }
.cta-band-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; position: relative; }
.cta-phone { display: inline-flex; align-items: center; gap: 9px; color: #fff; font-size: 17px; font-weight: 700; }
.cta-phone svg { width: 18px; height: 18px; color: #7fabff; }

/* ---------------- Footer ---------------- */
.site-footer { background: var(--footer); color: rgba(255, 255, 255, 0.68); margin-top: 0; }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 44px;
  padding: clamp(52px, 6vw, 76px) 0 48px;
}
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.4); }
.footer-brand p { font-size: 13.5px; line-height: 1.75; margin: 18px 0 20px; max-width: 300px; }
.footer-contact { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer-contact a { display: inline-flex; align-items: center; gap: 9px; transition: color 0.2s; }
.footer-contact a:hover { color: #fff; }
.footer-contact svg { width: 15px; height: 15px; color: #6c8cd9; }
.footer-col h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.footer-col li { margin-bottom: 11px; }
.footer-col a { font-size: 13.5px; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}

/* ---------------- Page hero (inner) ---------------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(48px, 6vw, 72px)) 0 clamp(44px, 5vw, 64px);
  background: linear-gradient(180deg, #f3f7ff 0%, #fff 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(17, 87, 216, 0.1) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 70% 80% at 60% 20%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 60% 20%, #000, transparent 70%);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 22px;
  position: relative;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #c3cddb; }
.breadcrumb .current { color: var(--ink); font-weight: 550; }
.page-hero h1 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 12px; position: relative; }
.page-hero .lead { font-size: clamp(15px, 1.6vw, 17px); max-width: 760px; position: relative; }

/* ---------------- Solution detail ---------------- */
.pain-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pain-item {
  display: flex;
  gap: 14px;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.pain-item svg { width: 20px; height: 20px; color: #d9500d; flex-shrink: 0; margin-top: 2px; }
.pain-item p { font-size: 14.5px; color: var(--body); line-height: 1.65; }

.value-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.value-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 22px 24px;
  background: linear-gradient(135deg, #f6faff, #fff);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.value-item svg { width: 22px; height: 22px; color: #16a34a; flex-shrink: 0; margin-top: 1px; }
.value-item strong { display: block; font-size: 15.5px; color: var(--ink); margin-bottom: 4px; }
.value-item p { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ---------------- Timeline ---------------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before {
  content: "";
  position: absolute;
  left: 89px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--border) 100%);
}
.tl-item { display: flex; gap: 36px; padding: 18px 0; position: relative; }
.tl-year {
  width: 72px;
  flex-shrink: 0;
  text-align: right;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}
.tl-dot {
  position: absolute;
  left: 83px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  z-index: 1;
}
.tl-body { flex: 1; padding-left: 42px; }
.tl-body h3 { font-size: 17.5px; margin-bottom: 5px; }
.tl-body p { font-size: 14.5px; color: var(--muted); }

/* ---------------- Certifications ---------------- */
.cert-card { text-align: center; padding: 30px 20px; }
.cert-card .icon-tile { margin: 0 auto 16px; }
.cert-card h3 { font-size: 15.5px; margin-bottom: 5px; line-height: 1.45; }
.cert-card p { font-size: 13px; }

/* ---------------- Process steps ---------------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: step; }
.steps--4 { grid-template-columns: repeat(4, 1fr); }
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px 24px;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.step:hover { transform: translateY(-4px); border-color: rgba(17, 87, 216, 0.35); box-shadow: var(--shadow-md); }
.step-num {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  font-weight: 700;
  font-size: 14.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--muted); }
.step-arrow {
  position: absolute;
  right: -15px;
  top: 50%;
  transform: translateY(-50%);
  color: #c3cddb;
  z-index: 1;
}
.step:last-child .step-arrow { display: none; }

/* ---------------- FAQ ---------------- */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 13px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item.is-open { border-color: rgba(17, 87, 216, 0.4); }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 24px;
  display: flex;
  justify-content: space;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
}
.faq-q .faq-icon {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s;
}
.faq-q .faq-icon svg { width: 13px; height: 13px; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a p { padding: 0 24px 22px; font-size: 14.5px; color: var(--body); line-height: 1.75; }

/* ---------------- Contact ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 40px; align-items: start; }
.contact-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.contact-card { padding: 26px 24px; }
.contact-card h3 { font-size: 14px; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
.contact-card .val { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.5; word-break: break-all; }
.contact-card .note { font-size: 13px; color: var(--muted); margin-top: 6px; }

.form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: clamp(28px, 4vw, 44px);
  box-shadow: var(--shadow-sm);
}
.form-card h3 { font-size: 20px; margin-bottom: 8px; }
.form-card > p { font-size: 14.5px; color: var(--muted); margin-bottom: 26px; }
.form-benefits { display: flex; flex-direction: column; gap: 10px; margin-bottom: 30px; }
.form-benefits li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: var(--body); }
.form-benefits svg { width: 17px; height: 17px; color: var(--primary); flex-shrink: 0; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.form-group label .req { color: #d9500d; margin-left: 2px; }
.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 12px 15px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fbfcfe;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(17, 87, 216, 0.12);
  background: #fff;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.char-count { text-align: right; font-size: 12px; color: var(--muted); margin-top: 5px; }
.form-note { font-size: 12.5px; color: var(--muted); text-align: center; margin-top: 16px; }
.form-success {
  display: none;
  text-align: center;
  padding: 48px 20px;
}
.form-success .ok-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #eafaf1;
  color: #16a34a;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.form-success .ok-icon svg { width: 30px; height: 30px; }
.form-success h3 { margin-bottom: 8px; }
.form-success p { font-size: 14.5px; color: var(--muted); }

/* ---------------- Article ---------------- */
.article-wrap { max-width: 780px; margin: 0 auto; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 28px;
}
.article-meta .sep { color: #d4dce9; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 550;
  color: var(--muted);
  margin-bottom: 28px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--primary); }
.back-link svg { width: 15px; height: 15px; }
.article-summary {
  background: var(--primary-tint);
  border-left: 3px solid var(--primary);
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 36px;
  line-height: 1.75;
}
.article-body h3 {
  font-size: 20px;
  margin: 40px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--primary);
}
.article-body p { font-size: 15.5px; line-height: 1.9; margin-bottom: 16px; }
.article-nav { border-top: 1px solid var(--border); margin-top: 48px; padding-top: 28px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------------- Core partner detail ---------------- */
.partner-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  margin-bottom: 24px;
}
.partner-detail-side {
  background: linear-gradient(160deg, #f3f7ff, #eaf1fe);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.partner-logo { font-size: 26px; font-weight: 750; color: var(--ink); letter-spacing: -0.01em; margin-bottom: 6px; }
.partner-logo-sub { font-size: 13.5px; color: var(--muted); margin-bottom: 16px; }
.partner-desc { font-size: 14.5px; color: var(--body); }
.partner-detail-main { padding: 36px 36px 36px 40px; }
.partner-detail-main h4 {
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
  font-weight: 700;
}
.cap-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 26px; }
.cap-list li { display: flex; gap: 9px; font-size: 14px; color: var(--body); line-height: 1.6; }
.cap-list svg { width: 16px; height: 16px; color: var(--primary); flex-shrink: 0; margin-top: 4px; }
.industry-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------------- About ---------------- */
.about-intro { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.about-intro .text p { font-size: 15.5px; line-height: 1.85; margin-bottom: 18px; }
.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fact-card { border: 1px solid var(--border); border-radius: 13px; padding: 22px; background: #fff; }
.fact-card .k { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.fact-card .v { font-size: 19px; font-weight: 700; color: var(--ink); }
.about-features { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }

.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mvv-card { text-align: center; padding: 38px 30px; }
.mvv-card .icon-tile { margin: 0 auto 18px; }
.mvv-card h3 { font-size: 18px; margin-bottom: 10px; }
.mvv-card p { font-size: 14.5px; }

/* ---------------- Reveal animation ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.65s cubic-bezier(0.2, 0.65, 0.3, 1), transform 0.65s cubic-bezier(0.2, 0.65, 0.3, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------------- Mobile nav ---------------- */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  bottom: 0;
  background: #fff;
  z-index: 99;
  padding: 20px 28px 40px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}
.mobile-nav.is-open { display: block; }
.mnav-group { border-bottom: 1px solid var(--border); }
.mnav-toggle {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 17px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.mnav-toggle svg { width: 14px; height: 14px; color: var(--muted); transition: transform 0.25s; }
.mnav-group.is-open .mnav-toggle svg { transform: rotate(180deg); }
.mnav-links { display: none; padding: 0 0 14px; flex-direction: column; gap: 2px; }
.mnav-group.is-open .mnav-links { display: flex; }
.mnav-links a { padding: 9px 0 9px 14px; font-size: 14.5px; color: var(--body); border-left: 2px solid var(--border); }
.mnav-links a:hover { color: var(--primary); border-left-color: var(--primary); }
.mnav-cta { margin-top: 26px; display: flex; flex-direction: column; gap: 12px; }

/* ---------------- Responsive ---------------- */
@media (max-width: 1080px) {
  .main-nav, .header-phone { display: none; }
  .nav-toggle { display: flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .globe-svg { width: min(72vw, 380px); }
  .grid--4, .steps, .steps--4 { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .nav-dropdown { display: none; }
}
@media (max-width: 860px) {
  .grid--3, .cap-grid, .pain-list, .value-list, .contact-grid, .partner-detail, .about-intro, .mvv-grid { grid-template-columns: 1fr; }
  .partner-detail-side { padding: 28px; }
  .trust-wrap { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3)::before { display: none; }
  .contact-cards { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .timeline::before { left: 12px; }
  .tl-item { gap: 20px; }
  .tl-year { width: auto; text-align: left; padding-left: 38px; order: 2; }
  .tl-dot { left: 6px; }
  .tl-body { padding-left: 0; }
  .tl-item { flex-direction: column; }
}
@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .grid--2, .grid--4, .steps, .steps--4, .trust-wrap, .cap-list { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
  .about-facts { grid-template-columns: 1fr 1fr; }
  .header-actions .btn--primary { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}