/* ==========================================================================
   Shenzhen DBX Technology Co., Ltd. — Website stylesheet
   Static site, no dependencies, no build step. Open index.html directly.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --navy-900: #071a33;
  --navy-800: #0b2545;
  --navy-700: #123a66;
  --blue-600: #1f6feb;
  --blue-500: #3b82f6;
  --blue-100: #e8f0fe;
  --ink: #10233d;
  --ink-soft: #4a5b73;
  --muted: #7a8aa0;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --bg-soft-2: #eef2f8;

  --accent: #1f6feb;
  --accent-soft: rgba(31, 111, 235, 0.08);

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(11, 37, 69, 0.06), 0 2px 8px rgba(11, 37, 69, 0.05);
  --shadow: 0 10px 30px rgba(11, 37, 69, 0.08);
  --shadow-lg: 0 24px 60px rgba(11, 37, 69, 0.14);

  --container: 1180px;
  --header-h: 72px;

  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue",
    Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, figure, ul, ol, dl {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

/* ---------- Layout utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--soft {
  background: var(--bg-soft);
}

.section--tight {
  padding: 72px 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-head--center .eyebrow::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.title__en {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.lead {
  margin-top: 18px;
  font-size: 16px;
  color: var(--ink-soft);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
    background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 22px rgba(31, 111, 235, 0.28);
}

.btn--primary:hover {
  background: #1a5fd0;
  box-shadow: 0 12px 28px rgba(31, 111, 235, 0.34);
}

.btn--ghost {
  background: transparent;
  color: var(--navy-800);
  border-color: rgba(11, 37, 69, 0.18);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.btn--on-dark {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
}

.btn--on-dark:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn--block {
  width: 100%;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(11, 37, 69, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand__mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  flex-shrink: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__cn {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--navy-800);
}

.brand__en {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  position: relative;
  padding: 10px 15px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.18s ease, background 0.18s ease;
}

.nav__link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav__link.is-active {
  color: var(--accent);
  font-weight: 600;
}

.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__actions .btn {
  height: 42px;
  padding: 0 20px;
  font-size: 14px;
}

/* Mobile menu button */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--navy-800);
  border-radius: 2px;
  transition: background 0.2s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--navy-800);
  border-radius: 2px;
  transition: transform 0.22s ease, top 0.22s ease;
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; }

.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ---------- Home hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(120% 120% at 12% 0%, #123a66 0%, #0b2545 46%, #071a33 100%);
  color: #fff;
  padding: 108px 0 120px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(90% 80% at 60% 10%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(90% 80% at 60% 10%, #000 20%, transparent 78%);
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  width: 620px;
  height: 620px;
  right: -180px;
  top: -220px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.42) 0%, transparent 62%);
  filter: blur(6px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 11px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.07);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 26px;
}

.hero__body {
  min-width: 0;
}

.hero__badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.18);
}

.hero__title {
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(100deg, #7dd3fc 0%, #93c5fd 42%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__desc {
  max-width: 520px;
  margin-top: 24px;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(226, 236, 250, 0.82);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero__stat-num {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero__stat-num span {
  font-size: 15px;
  font-weight: 600;
  color: #93c5fd;
  margin-left: 2px;
}

.hero__stat-label {
  margin-top: 6px;
  font-size: 13px;
  color: rgba(200, 216, 236, 0.68);
  letter-spacing: 0.03em;
}

/* Hero visual */
.hero__visual {
  position: relative;
}

.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(10px);
  padding: 26px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.32);
}

.hero-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-card__title {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

.hero-card__dots {
  display: flex;
  gap: 6px;
}

.hero-card__dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.hero-card__dots i:first-child { background: #f87171; }
.hero-card__dots i:nth-child(2) { background: #fbbf24; }
.hero-card__dots i:last-child  { background: #4ade80; }

.bar-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 22px;
}

.bar-item__row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(226, 236, 250, 0.78);
  margin-bottom: 9px;
}

.bar-item__val {
  font-weight: 600;
  color: #93c5fd;
}

.bar-item__track {
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.bar-item__fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #3b82f6, #93c5fd);
  width: 0;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-card__foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12.5px;
  color: rgba(200, 216, 236, 0.7);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 10px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* ---------- Card grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 111, 235, 0.28);
  box-shadow: var(--shadow);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
}

.card__icon svg {
  width: 26px;
  height: 26px;
}

.card__title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card__sub {
  margin-top: 4px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.card__text {
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.card__list {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--ink-soft);
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.55;
}

/* ---------- Stats band ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  background: #fff;
  padding: 38px 26px;
  text-align: center;
}

.stat__num {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--navy-800);
}

.stat__num span {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  margin-left: 2px;
}

.stat__label {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--muted);
}

/* ---------- Split section ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.split--reverse .split__media {
  order: 2;
}

.split__body .title {
  font-size: clamp(24px, 2.8vw, 34px);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 34px;
}

.check-item {
  display: flex;
  gap: 14px;
}

.check-item__icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.check-item__icon svg {
  width: 14px;
  height: 14px;
}

.check-item__title {
  font-size: 15.5px;
  font-weight: 600;
}

.check-item__desc {
  margin-top: 4px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}

/* Media placeholder */
.media-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, var(--navy-800) 0%, var(--navy-900) 100%);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3.1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.6;
}

.media-frame__inner {
  position: relative;
  z-index: 1;
  padding: 32px;
  text-align: center;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.media-frame__badge {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 2;
  padding: 10px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
}

/* ---------- Process steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 26px;
  border-top: 2px solid var(--line);
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: -13px;
  left: 0;
  padding: 2px 10px;
  background: var(--bg);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.section--soft .step::before {
  background: var(--bg-soft);
}

.step__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- CTA block ---------- */
.cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(115deg, var(--navy-800) 0%, var(--navy-900) 55%, #0a2f57 100%);
  color: #fff;
  padding: 64px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.cta::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.36), transparent 66%);
  pointer-events: none;
}

.cta__body {
  position: relative;
  z-index: 1;
  max-width: 620px;
}

.cta__title {
  font-size: clamp(23px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.cta__text {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(226, 236, 250, 0.78);
}

.cta__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Page banner ---------- */
.page-banner {
  position: relative;
  overflow: hidden;
  background: radial-gradient(110% 130% at 8% 0%, #123a66 0%, #0b2545 52%, #071a33 100%);
  color: #fff;
  padding: 76px 0 68px;
}

.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
  pointer-events: none;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(200, 216, 236, 0.62);
  margin-bottom: 20px;
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb__sep {
  opacity: 0.5;
}

.page-banner__title {
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.24;
}

.page-banner__desc {
  max-width: 640px;
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(226, 236, 250, 0.8);
}

.page-banner__en {
  margin-top: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(147, 197, 253, 0.78);
}

/* ---------- Tables ---------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.spec-table caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 12px;
  font-size: 13px;
  color: var(--muted);
}

.spec-table th,
.spec-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table thead th {
  background: var(--bg-soft);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}

.spec-table tbody tr:hover {
  background: rgba(31, 111, 235, 0.03);
}

.spec-table td:first-child {
  font-weight: 600;
  color: var(--navy-800);
  white-space: nowrap;
}

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy-800);
}

.field label .req {
  color: #e11d48;
  margin-left: 3px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fcfdff;
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color 0.18s ease, box-shadow 0.18s ease,
    background 0.18s ease;
}

.field textarea {
  resize: vertical;
  min-height: 138px;
  line-height: 1.7;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #a8b4c4;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.form-note {
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
}

.form-status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  display: none;
}

.form-status.is-ok {
  display: block;
  background: #e9f9ef;
  border: 1px solid #b7ebc9;
  color: #166534;
}

.form-status.is-err {
  display: block;
  background: #fef2f2;
  border: 1px solid #fbcaca;
  color: #b91c1c;
}

/* ---------- Contact info list ---------- */
.info-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.info-item:last-child {
  border-bottom: 0;
}

.info-item__icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.info-item__icon svg {
  width: 20px;
  height: 20px;
}

.info-item__label {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.info-item__value {
  margin-top: 3px;
  font-size: 15px;
  font-weight: 500;
  color: var(--navy-800);
  word-break: break-word;
}

.info-item__value a:hover {
  color: var(--accent);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-900);
  color: rgba(226, 236, 250, 0.72);
  padding: 72px 0 0;
  font-size: 14.5px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand .brand__cn {
  color: #fff;
}

.footer-brand .brand__en {
  color: rgba(147, 197, 253, 0.7);
}

.footer-brand__desc {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.85;
  max-width: 320px;
  color: rgba(200, 216, 236, 0.62);
}

.footer-col__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links a {
  color: rgba(200, 216, 236, 0.68);
  font-size: 14px;
  transition: color 0.18s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 14px;
  color: rgba(200, 216, 236, 0.68);
}

.footer-contact strong {
  color: #fff;
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(200, 216, 236, 0.5);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bar-item__fill { transition: none; }
  .pulse-dot { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .hero__desc { max-width: none; }

  .hero__visual { max-width: 560px; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .split { gap: 48px; }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }

  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .split,
  .split--reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split--reverse .split__media { order: 0; }

  .cta { padding: 48px 36px; }

  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  :root { --header-h: 64px; }

  .nav-toggle { display: inline-flex; }

  .header__actions .btn { display: none; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 99;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(11, 37, 69, 0.1);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.22s ease, opacity 0.22s ease, visibility 0.22s;
  }

  .nav.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    padding: 14px 12px;
    border-radius: 8px;
    font-size: 16px;
  }

  .nav__link.is-active::after { display: none; }

  .nav__link.is-active {
    background: var(--accent-soft);
  }

  .hero { padding: 76px 0 84px; }

  .hero__meta {
    gap: 20px 32px;
    margin-top: 36px;
    padding-top: 26px;
  }

  .section-head { margin-bottom: 40px; }

  .form-card { padding: 26px 20px; }

  .cta { padding: 40px 26px; }

  .page-banner { padding: 56px 0 52px; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }

  .stats { grid-template-columns: 1fr; }

  .steps { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 34px; }

  .card { padding: 28px 22px; }

  .hero__title { font-size: 30px; }

  .btn { height: 46px; padding: 0 22px; }

  .spec-table { font-size: 13.5px; }

  .spec-table th,
  .spec-table td { padding: 13px 12px; }

  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   DBX-specific components
   ========================================================================== */

/* ---------- Chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.chip--on-dark {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.chip--live {
  background: rgba(74, 222, 128, 0.16);
  color: #15803d;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Hero visual: product highlight card ---------- */
.spot-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(10px);
  padding: 24px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.32);
}

.spot-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(200, 216, 236, 0.72);
}

.spot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.spot:last-of-type {
  border-bottom: 0;
}

.spot__thumb {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #93c5fd;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.spot__thumb svg {
  width: 28px;
  height: 28px;
}

.spot__name {
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
}

.spot__tags {
  margin-top: 4px;
  font-size: 12.5px;
  color: rgba(200, 216, 236, 0.66);
}

.spot__moq {
  margin-left: auto;
  flex-shrink: 0;
  text-align: right;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.05;
  color: #fff;
}

.spot__moq small {
  display: block;
  margin-top: 4px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(147, 197, 253, 0.85);
}

.spot-card__foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12.5px;
  color: rgba(200, 216, 236, 0.7);
}

/* ---------- Product detail block ---------- */
.product {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 56px;
  align-items: start;
  padding: 68px 0;
  border-top: 1px solid var(--line);
}

.product:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.product--reverse .product__media {
  order: 2;
}

.product__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, var(--navy-800) 0%, var(--navy-900) 100%);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product__media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.55;
}

.product__media-inner {
  position: relative;
  z-index: 1;
  padding: 28px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.5);
}

.product__badge {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
}

.product__body .eyebrow {
  margin-bottom: 12px;
}

.product__title {
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.24;
}

.product__sub {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.product__desc {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- Feature list ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 26px;
  margin-top: 28px;
}

.feature {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.feature::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

/* ---------- Spec mini-table ---------- */
.mini-table {
  width: 100%;
  margin-top: 28px;
  border-collapse: collapse;
  font-size: 14px;
}

.mini-table th,
.mini-table td {
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.mini-table th {
  width: 44%;
  font-weight: 600;
  color: var(--navy-800);
  white-space: nowrap;
}

.mini-table td {
  color: var(--ink-soft);
}

/* ---------- Customisation options ---------- */
.option-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.option {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.option:hover {
  border-color: rgba(31, 111, 235, 0.28);
  box-shadow: var(--shadow-sm);
}

.option__k {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.option__v {
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-800);
}

.option__d {
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- Callout box ---------- */
.note-box {
  padding: 22px 26px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  border: 1px solid rgba(31, 111, 235, 0.16);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.note-box strong {
  color: var(--navy-800);
}

.note-box--warm {
  background: #fffaf0;
  border-color: #f6e3b8;
}

/* ---------- Pull quote ---------- */
.quote {
  position: relative;
  padding: 36px 40px;
  border-radius: 20px;
  background: var(--bg-soft);
  border-left: 4px solid var(--accent);
  font-size: 18px;
  line-height: 1.85;
  font-weight: 500;
  color: var(--navy-800);
}

.quote cite {
  display: block;
  margin-top: 18px;
  font-size: 13.5px;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- Timeline ---------- */
.timeline {
  display: flex;
  flex-direction: column;
  margin-top: 8px;
}

.tl {
  display: flex;
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.tl:last-child {
  border-bottom: 0;
}

.tl__year {
  flex-shrink: 0;
  width: 96px;
  padding-top: 2px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.tl__body {
  flex: 1;
  min-width: 0;
}

.tl__title {
  margin-bottom: 6px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--navy-800);
}

.tl__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- Image placeholder grid ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.gallery__item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  border: 1px dashed rgba(11, 37, 69, 0.2);
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- Footer tagline ---------- */
.footer-brand__tag {
  display: inline-block;
  margin-top: 18px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(147, 197, 253, 0.7);
}

/* ==========================================================================
   DBX components: responsive rules
   ========================================================================== */
@media (max-width: 1080px) {
  .product {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 52px 0;
  }

  .product--reverse .product__media {
    order: 0;
  }

  .product__media {
    aspect-ratio: 16 / 10;
    max-width: 620px;
  }

  .option-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quote {
    padding: 26px 24px;
    font-size: 16px;
  }

  .tl {
    flex-direction: column;
    gap: 6px;
  }

  .tl__year {
    width: auto;
    padding-top: 0;
  }
}

@media (max-width: 560px) {
  .option-grid,
  .gallery {
    grid-template-columns: 1fr;
  }

  .spot__moq {
    font-size: 15px;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header,
  .nav-toggle,
  .cta__actions,
  .btn-row,
  .site-footer { display: none !important; }

  body { color: #000; }
  .hero, .page-banner { background: #fff !important; color: #000 !important; padding: 24px 0; }
  .hero__title em { -webkit-text-fill-color: #000; }
  .section { padding: 24px 0; }
  .reveal { opacity: 1; transform: none; }
}