/*
 * 宁波若海数字技术有限公司官网
 * 高端海洋科技品牌视觉系统
 */

:root {
  --page-bg: #f4faff;
  --section-bg-soft: #f8fcff;
  --section-bg-blue: #eaf5ff;
  --card-bg: #ffffff;
  --primary-blue: #1677ff;
  --light-blue: #36a8ff;
  --navy: #062b49;
  --navy-dark: #031d33;
  --text-primary: #102a43;
  --text-secondary: #526b7a;

  /* 兼容现有组件命名，后续维护只需调整上方品牌变量。 */
  --bg-white: var(--card-bg);
  --bg-soft: var(--section-bg-soft);
  --bg-blue: var(--section-bg-blue);
  --blue-primary: var(--primary-blue);
  --blue-light: var(--light-blue);
  --brand-dot: #ffd21f;
  --line: rgba(6, 64, 105, 0.12);
  --line-light: rgba(255, 255, 255, 0.16);
  --card-border: 1px solid rgba(44, 139, 210, 0.1);
  --card-shadow: 0 20px 60px rgba(21, 83, 130, 0.08);
  --card-shadow-hover: 0 28px 70px rgba(21, 83, 130, 0.12);
  --card-radius: 18px;
  --shadow-soft: 0 24px 70px rgba(10, 66, 105, 0.09);
  --shadow-image: 0 32px 90px rgba(6, 43, 73, 0.16);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1280px;
  --header-height: 92px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text-primary);
  background: var(--page-bg);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

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

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

button {
  color: inherit;
}

h1,
h2,
h3,
p,
ul,
ol,
figure,
blockquote,
address {
  margin-top: 0;
}

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

address {
  font-style: normal;
}

::selection {
  color: var(--bg-white);
  background: var(--blue-primary);
}

:focus-visible {
  outline: 3px solid rgba(22, 119, 255, 0.42);
  outline-offset: 4px;
}

.container {
  position: relative;
  z-index: 2;
  width: min(var(--container), calc(100% - 64px));
  margin: 0 auto;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 9px 16px;
  color: var(--bg-white);
  background: var(--blue-primary);
  border-radius: 7px;
  transform: translateY(-150%);
  transition: transform 0.25s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header */
.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition:
    height 0.35s var(--ease),
    background-color 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.site-header.is-scrolled {
  height: 76px;
  background: rgba(255, 255, 255, 0.88);
  border-bottom-color: rgba(6, 64, 105, 0.08);
  box-shadow: 0 8px 32px rgba(8, 55, 89, 0.07);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  height: 100%;
  align-items: center;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 58px;
  height: 48px;
  place-items: center;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.brand-copy strong {
  color: var(--navy);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.brand-copy small {
  margin-top: 6px;
  color: rgba(6, 65, 105, 0.58);
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(23px, 2.1vw, 36px);
  margin-left: auto;
}

.primary-nav a {
  position: relative;
  padding: 10px 0;
  color: rgba(16, 42, 67, 0.72);
  font-size: 15px;
  font-weight: 550;
  white-space: nowrap;
  transition: color 0.25s ease;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--blue-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.primary-nav a:hover,
.primary-nav a.is-active {
  color: var(--blue-primary);
}

.primary-nav a:hover::after,
.primary-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  margin-left: 34px;
  color: var(--bg-white);
  background: var(--blue-primary);
  border: 1px solid var(--blue-primary);
  border-radius: 9px;
  font-size: 13px;
  font-weight: 650;
  transition: transform 0.28s var(--ease), background 0.28s ease, box-shadow 0.28s ease;
}

.nav-cta:hover {
  background: #0866db;
  box-shadow: 0 12px 30px rgba(22, 119, 255, 0.2);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  margin-left: auto;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 9px;
}

.menu-toggle span {
  display: block;
  width: 21px;
  height: 2px;
  margin: 4px auto;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Shared */
.section {
  position: relative;
  padding: 145px 0;
  overflow: hidden;
}

.section-label,
.overline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.08em;
}

.section-label::before,
.overline::before {
  width: 24px;
  height: 2px;
  content: "";
  background: var(--blue-primary);
}

.overline {
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.18em;
}

.section h2 {
  margin-bottom: 0;
  color: var(--text-primary);
  font-size: clamp(40px, 3.6vw, 48px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.045em;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 90px;
  align-items: end;
  margin-bottom: 68px;
}

.section-heading > p {
  max-width: 560px;
  margin: 0 0 2px auto;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.9;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 0 24px;
  cursor: pointer;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 650;
  transition:
    transform 0.3s var(--ease),
    box-shadow 0.3s ease,
    color 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease;
}

.button--primary {
  color: var(--bg-white);
  background: linear-gradient(105deg, var(--blue-primary), var(--blue-light));
  border: 1px solid transparent;
  box-shadow: 0 14px 34px rgba(22, 119, 255, 0.2);
}

.button--primary:hover {
  box-shadow: 0 18px 40px rgba(22, 119, 255, 0.28);
  transform: translateY(-3px);
}

.button--outline {
  color: var(--navy);
  background: rgba(255, 255, 255, 0.48);
  border: 1px solid rgba(6, 64, 105, 0.2);
}

.button--outline:hover {
  color: var(--blue-primary);
  background: var(--bg-white);
  border-color: rgba(22, 119, 255, 0.42);
  transform: translateY(-3px);
}

.button-arrow {
  font-size: 18px;
  line-height: 1;
  transition: transform 0.28s var(--ease);
}

.button:hover .button-arrow,
.nav-cta:hover span:last-child {
  transform: translateX(4px);
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  min-height: 920px;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(54, 168, 255, 0.07), transparent 30%),
    linear-gradient(135deg, #f8fcff 0%, #eaf5ff 55%, #ddefff 100%);
}

.hero::before {
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 47%;
  content: "";
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.18), rgba(22, 119, 255, 0.055));
  border-bottom-left-radius: 120px;
}

.hero-ambient {
  position: absolute;
  z-index: 0;
  top: 8%;
  right: 16%;
  width: 560px;
  height: 560px;
  pointer-events: none;
  opacity: 0.48;
  background: radial-gradient(circle, rgba(54, 168, 255, 0.14), transparent 68%);
  animation: ambient-shift 20s ease-in-out infinite alternate;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.54fr) minmax(0, 0.46fr);
  gap: 34px;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 82px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  padding-right: 24px;
}

.hero h1 {
  margin-bottom: 30px;
  color: var(--text-primary);
  font-size: clamp(56px, 4.8vw, 72px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero h1 span:last-child {
  color: var(--navy);
  font-size: 0.9em;
}

.hero-description {
  max-width: 650px;
  margin-bottom: 38px;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

.hero-capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.hero-capabilities li {
  position: relative;
  padding-right: 24px;
  margin-right: 24px;
  color: rgba(16, 42, 67, 0.68);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.hero-capabilities li:not(:last-child)::after {
  position: absolute;
  top: 7px;
  right: 0;
  width: 3px;
  height: 3px;
  content: "";
  background: var(--blue-light);
  border-radius: 50%;
}

.hero-media {
  position: relative;
  z-index: 3;
  width: calc(100% + 46px);
  margin: 0 -46px 0 0;
}

.hero-media__image {
  position: relative;
  height: 635px;
  overflow: hidden;
  background: var(--navy);
  border-radius: 32px 0 32px 32px;
  box-shadow: var(--shadow-image);
}

.hero-media__image::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, transparent 68%, rgba(3, 29, 51, 0.18));
}

[data-parallax] img {
  --parallax-y: 0px;
  transform: translate3d(0, var(--parallax-y), 0) scale(1.06);
  will-change: transform;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  filter: brightness(1.08) contrast(1.02) saturate(0.92);
}

.media-label {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 170px;
  padding: 13px 15px;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(3, 29, 51, 0.12);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.media-label > span:first-child:not(.media-label__mark) {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: #25b987;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(37, 185, 135, 0.12);
}

.media-label > div {
  display: flex;
  flex-direction: column;
  line-height: 1.45;
}

.media-label small {
  color: rgba(16, 42, 67, 0.52);
  font-size: 10px;
}

.media-label strong {
  font-size: 13px;
  font-weight: 650;
}

.media-label__mark {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--bg-white);
  background: var(--blue-primary);
  border-radius: 8px;
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
}

.media-label--online {
  top: 30px;
  left: 30px;
}

.media-label--edge {
  right: 30px;
  bottom: 30px;
}

.hero-media figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px 0 26px;
}

.hero-media figcaption span {
  color: var(--blue-primary);
  font-size: 12px;
  font-weight: 650;
}

.hero-media figcaption strong {
  color: var(--navy);
  font-size: 14px;
  font-weight: 650;
}

.scroll-cue {
  position: absolute;
  z-index: 5;
  bottom: 30px;
  left: max(32px, calc((100vw - var(--container)) / 2));
  display: flex;
  align-items: center;
  gap: 13px;
  color: rgba(16, 42, 67, 0.5);
  font-size: 11px;
}

.scroll-cue i {
  position: relative;
  display: block;
  width: 52px;
  height: 1px;
  overflow: hidden;
  background: rgba(6, 64, 105, 0.16);
}

.scroll-cue i::after {
  position: absolute;
  top: 0;
  left: -50%;
  width: 45%;
  height: 1px;
  content: "";
  background: var(--blue-primary);
  animation: scroll-line 2.8s ease-in-out infinite;
}

/* Company positioning */
.positioning {
  background: linear-gradient(180deg, var(--section-bg-soft) 0%, var(--page-bg) 100%);
}

.editorial-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 105px;
  align-items: start;
  margin-bottom: 96px;
}

.editorial-heading__copy {
  max-width: 680px;
  padding-top: 48px;
}

.editorial-heading__copy .lead {
  margin-bottom: 24px;
  color: var(--text-primary);
  font-size: 25px;
  font-weight: 650;
  line-height: 1.6;
}

.editorial-heading__copy p:last-child {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 2;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principles article {
  min-height: 245px;
  padding: 42px 42px 44px 0;
}

.principles article + article {
  padding-left: 42px;
  border-left: 1px solid var(--line);
}

.principles article > p {
  margin-bottom: 25px;
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 650;
}

.principles h3 {
  margin-bottom: 13px;
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.45;
}

.principles span {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.85;
}

/* Architecture */
.architecture {
  background:
    radial-gradient(circle at 6% 85%, rgba(54, 168, 255, 0.08), transparent 26%),
    linear-gradient(180deg, var(--page-bg) 0%, var(--section-bg-blue) 18%, var(--section-bg-blue) 82%, var(--page-bg) 100%);
}

.architecture-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(520px, 1.2fr);
  gap: 100px;
  align-items: center;
}

.architecture-copy > p:not(.section-label) {
  max-width: 510px;
  margin: 28px 0 34px;
  color: var(--text-secondary);
  font-size: 17px;
}

.architecture-copy blockquote {
  max-width: 520px;
  padding: 4px 0 4px 23px;
  margin: 0;
  color: var(--navy);
  border-left: 3px solid var(--blue-primary);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.8;
}

.architecture-board {
  position: relative;
  overflow: hidden;
  padding: 40px 44px 44px;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.92);
  border: var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
}

.architecture-board::after {
  position: absolute;
  top: -120px;
  right: -100px;
  width: 300px;
  height: 300px;
  content: "";
  pointer-events: none;
  background: radial-gradient(circle, rgba(54, 168, 255, 0.1), transparent 68%);
}

.architecture-board__head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.architecture-board__head span {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 650;
}

.architecture-board__head small {
  color: rgba(82, 107, 122, 0.76);
  font-size: 12px;
}

.architecture-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin: 34px 0 0;
}

.architecture-flow li {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.architecture-flow li:not(:last-child)::after {
  position: absolute;
  top: 26px;
  left: calc(50% + 34px);
  width: calc(100% - 56px);
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(54, 168, 255, 0.6), rgba(54, 168, 255, 0.16));
}

.architecture-flow li:not(:last-child)::before {
  position: absolute;
  z-index: 2;
  top: 23px;
  right: -8px;
  width: 6px;
  height: 6px;
  content: "";
  border-top: 1px solid var(--blue-light);
  border-right: 1px solid var(--blue-light);
  transform: rotate(45deg);
}

.flow-icon {
  position: relative;
  z-index: 3;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  background: rgba(234, 245, 255, 0.86);
  border: 1px solid rgba(22, 119, 255, 0.16);
  border-radius: 12px;
}

.flow-icon::before,
.flow-icon::after,
.flow-icon i {
  position: absolute;
  content: "";
}

.flow-icon--sensor::before {
  width: 17px;
  height: 17px;
  border: 2px solid var(--primary-blue);
  border-radius: 50%;
}

.flow-icon--sensor::after {
  width: 29px;
  height: 29px;
  border: 1px solid rgba(22, 119, 255, 0.24);
  border-radius: 50%;
}

.flow-icon--sensor i {
  width: 4px;
  height: 4px;
  background: var(--blue-light);
  border-radius: 50%;
}

.flow-icon--edge::before {
  width: 25px;
  height: 19px;
  border: 1px solid var(--primary-blue);
  border-radius: 4px;
}

.flow-icon--edge::after {
  width: 3px;
  height: 3px;
  background: var(--blue-light);
  border-radius: 50%;
  box-shadow: -7px 0 0 rgba(22, 119, 255, 0.52), 7px 0 0 rgba(22, 119, 255, 0.52);
}

.flow-icon--link::before,
.flow-icon--link::after {
  width: 19px;
  height: 10px;
  border: 1px solid var(--primary-blue);
  border-radius: 12px;
}

.flow-icon--link::before {
  transform: translateX(-7px) rotate(-32deg);
}

.flow-icon--link::after {
  transform: translateX(7px) rotate(-32deg);
}

.flow-icon--cloud::before {
  width: 27px;
  height: 17px;
  border: 1px solid var(--primary-blue);
  border-radius: 12px;
}

.flow-icon--cloud::after {
  bottom: 14px;
  width: 1px;
  height: 10px;
  background: var(--primary-blue);
}

.flow-icon--app::before {
  width: 25px;
  height: 25px;
  border: 1px solid var(--primary-blue);
  border-radius: 5px;
}

.flow-icon--app::after {
  width: 11px;
  height: 6px;
  border-bottom: 1px solid var(--blue-light);
  border-left: 1px solid var(--blue-light);
  transform: rotate(-45deg) translate(1px, -2px);
}

.architecture-flow li > div {
  display: flex;
  min-width: 0;
  flex-direction: column;
  margin-top: 16px;
}

.architecture-flow small {
  color: rgba(82, 107, 122, 0.72);
  font-size: 10px;
}

.architecture-flow strong {
  margin-top: 4px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

/* Business */
.business {
  background: linear-gradient(180deg, var(--page-bg) 0%, var(--section-bg-soft) 18%, var(--section-bg-soft) 82%, #edf7ff 100%);
}

.business-mosaic {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(420px, 0.88fr);
  gap: 24px;
}

.business-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}

.business-card {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  border: var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  transition: transform 0.35s var(--ease), border-color 0.35s ease, box-shadow 0.35s ease;
}

.business-card:hover {
  border-color: rgba(22, 119, 255, 0.2);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-4px);
}

.business-card--featured {
  min-height: 730px;
}

.business-card--featured .business-card__media {
  height: 410px;
  overflow: hidden;
}

.business-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.business-card--featured .business-card__media img {
  object-position: 50% 50%;
  filter: brightness(1.03) saturate(0.9);
}

.business-card__content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 22px;
  padding: 38px 40px;
}

.business-card__content > div > p:first-child {
  margin-bottom: 6px;
  color: var(--blue-primary);
  font-size: 12px;
  font-weight: 650;
}

.business-card h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
}

.business-card__content > div > p:not(:first-child) {
  margin-bottom: 18px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.85;
}

.business-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 0;
}

.business-card li {
  padding: 5px 10px;
  color: rgba(6, 64, 105, 0.72);
  background: rgba(22, 119, 255, 0.055);
  border: 1px solid rgba(22, 119, 255, 0.1);
  border-radius: 6px;
  font-size: 11px;
}

.business-card a {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  margin-top: 24px;
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 650;
}

.business-card a span {
  font-size: 17px;
  transition: transform 0.28s var(--ease);
}

.business-card a:hover span {
  transform: translateX(5px);
}

.business-icon {
  position: relative;
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  background: var(--bg-blue);
  border: 1px solid rgba(22, 119, 255, 0.12);
  border-radius: 12px;
}

.business-icon::before,
.business-icon::after,
.business-icon i {
  position: absolute;
  content: "";
}

.business-icon--device::before {
  width: 25px;
  height: 18px;
  border: 1px solid var(--blue-primary);
  border-radius: 4px;
}

.business-icon--device::after {
  width: 3px;
  height: 3px;
  background: var(--blue-primary);
  border-radius: 50%;
  box-shadow: -7px 0 0 rgba(22, 119, 255, 0.45), 7px 0 0 rgba(22, 119, 255, 0.45);
}

.business-icon--data::before {
  width: 26px;
  height: 22px;
  border-bottom: 1px solid var(--blue-primary);
  border-left: 1px solid var(--blue-primary);
}

.business-icon--data::after {
  width: 4px;
  height: 8px;
  bottom: 15px;
  left: 18px;
  background: var(--blue-primary);
  box-shadow: 7px -6px 0 rgba(22, 119, 255, 0.75), 14px -13px 0 rgba(22, 119, 255, 0.5);
}

.business-icon--link::before,
.business-icon--link::after {
  width: 20px;
  height: 11px;
  border: 1px solid var(--primary-blue);
  border-radius: 12px;
}

.business-icon--link::before {
  transform: translateX(-7px) rotate(-32deg);
}

.business-icon--link::after {
  transform: translateX(7px) rotate(-32deg);
}

.business-card--data {
  min-height: 330px;
  background: rgba(255, 255, 255, 0.92);
}

.business-card--data .business-card__content {
  max-width: 88%;
  padding: 42px 38px;
}

.data-texture {
  position: absolute;
  right: 28px;
  bottom: 28px;
  display: flex;
  width: 140px;
  height: 72px;
  align-items: flex-end;
  gap: 9px;
  opacity: 0.28;
}

.data-texture::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  background: var(--blue-primary);
}

.data-texture i {
  display: block;
  width: 100%;
  background: linear-gradient(to top, rgba(22, 119, 255, 0.2), var(--blue-primary));
  border-radius: 3px 3px 0 0;
}

.data-texture i:nth-child(1) { height: 28%; }
.data-texture i:nth-child(2) { height: 52%; }
.data-texture i:nth-child(3) { height: 72%; }
.data-texture i:nth-child(4) { height: 95%; }

.business-card--cloud {
  min-height: 330px;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.92);
}

.business-card--cloud .business-card__media {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 43%;
}

.business-card--cloud .business-card__media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.96) 42%, rgba(255, 255, 255, 0.2) 100%);
}

.business-card--cloud .business-card__media img {
  object-position: center;
  filter: brightness(1.03) saturate(0.88);
}

.business-card--cloud .business-card__content {
  max-width: 75%;
  padding: 42px 38px;
}

.business-card--cloud .business-icon {
  background: var(--section-bg-blue);
  border-color: rgba(22, 119, 255, 0.12);
}

.business-card--cloud .business-card__content > div > p:first-child {
  color: var(--primary-blue);
}

.business-card--cloud h3 {
  color: var(--text-primary);
}

.business-card--cloud .business-card__content > div > p:not(:first-child) {
  color: var(--text-secondary);
}

.business-card--cloud li {
  color: rgba(6, 64, 105, 0.72);
  background: rgba(22, 119, 255, 0.055);
  border-color: rgba(22, 119, 255, 0.1);
}

/* Solutions */
.solutions {
  background:
    radial-gradient(circle at 95% 8%, rgba(54, 168, 255, 0.08), transparent 24%),
    linear-gradient(180deg, #edf7ff 0%, var(--section-bg-blue) 18%, var(--section-bg-blue) 100%);
}

.solution-tabs {
  display: flex;
  gap: 40px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.solution-tab {
  position: relative;
  min-height: 56px;
  padding: 0 2px;
  cursor: pointer;
  color: rgba(16, 42, 67, 0.58);
  background: transparent;
  border: 0;
  font-size: 16px;
  font-weight: 650;
  transition: color 0.25s ease;
}

.solution-tab::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  content: "";
  background: var(--blue-primary);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}

.solution-tab:hover,
.solution-tab.is-active {
  color: var(--blue-primary);
}

.solution-tab.is-active::after {
  transform: scaleX(1);
}

.solution-panel {
  display: grid;
  min-height: 630px;
  grid-template-columns: minmax(0, 1.18fr) minmax(410px, 0.82fr);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  border: var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
}

.solution-panel[hidden] {
  display: none;
}

.solution-panel.is-active {
  animation: panel-in 0.5s var(--ease) both;
}

.solution-media {
  position: relative;
  min-height: 630px;
  overflow: hidden;
  background: var(--navy);
}

.solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(1.01) saturate(0.9);
}

.solution-media:first-child img[src$="og-cover.jpg"] {
  object-position: 70% center;
}

.solution-media > span {
  position: absolute;
  bottom: 28px;
  left: 30px;
  padding: 9px 13px;
  color: var(--bg-white);
  background: rgba(3, 29, 51, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.solution-content {
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 58px 52px;
}

.solution-kicker {
  margin-bottom: 14px;
  color: var(--blue-primary);
  font-size: 13px;
  font-weight: 650;
}

.solution-content h3 {
  margin-bottom: 20px;
  color: var(--text-primary);
  font-size: clamp(30px, 2.7vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.035em;
}

.solution-content > p:not(.solution-kicker) {
  margin-bottom: 30px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.9;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  border-top: 1px solid var(--line);
}

.feature-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.feature-list strong {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 650;
}

.feature-list span {
  color: rgba(82, 107, 122, 0.72);
  font-size: 12px;
  text-align: right;
}

.solution-media--platform {
  display: grid;
  place-items: center;
  padding: 48px;
  background:
    radial-gradient(circle at 20% 10%, rgba(54, 168, 255, 0.16), transparent 32%),
    linear-gradient(145deg, var(--navy-dark), #07446d);
}

.platform-pipeline {
  position: relative;
  display: grid;
  width: 100%;
  max-width: 620px;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  align-items: center;
}

.platform-pipeline > div {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 150px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 18px 12px;
  text-align: center;
  background: rgba(255, 255, 255, 0.065);
  border: 1px solid rgba(142, 214, 255, 0.18);
  border-radius: 12px;
}

.platform-pipeline small {
  color: #8ed6ff;
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: 10px;
}

.platform-pipeline strong {
  margin: 9px 0 6px;
  color: var(--bg-white);
  font-size: 15px;
  font-weight: 650;
}

.platform-pipeline span {
  color: rgba(214, 236, 248, 0.5);
  font-size: 10px;
  line-height: 1.6;
}

.platform-pipeline > i {
  display: none;
}

/* Strategy */
.strategy {
  color: var(--bg-white);
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
}

.strategy::before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 38%;
  content: "";
  pointer-events: none;
  opacity: 0.22;
  background:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to left, black, transparent);
  mask-image: linear-gradient(to left, black, transparent);
}

.strategy .section-label {
  color: #8ed6ff;
}

.strategy .section-label::before {
  background: #8ed6ff;
}

.strategy-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 90px;
  align-items: end;
  margin-bottom: 96px;
}

.strategy h2 {
  color: var(--bg-white);
}

.strategy-heading > p {
  max-width: 560px;
  margin: 0 0 2px auto;
  color: rgba(219, 238, 249, 0.62);
  font-size: 17px;
}

.strategy-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 90px;
  padding-top: 58px;
}

.timeline-track {
  position: absolute;
  top: 14px;
  right: 0;
  left: 0;
  height: 1px;
  background: rgba(142, 214, 255, 0.25);
}

.strategy-stage {
  position: relative;
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 36px;
}

.strategy-stage::before {
  position: absolute;
  top: -50px;
  left: 0;
  width: 12px;
  height: 12px;
  content: "";
  background: var(--blue-light);
  border: 3px solid var(--navy);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(54, 168, 255, 0.16);
}

.strategy-stage__time span {
  display: block;
  margin-bottom: 8px;
  color: #8ed6ff;
  font-size: 12px;
  font-weight: 650;
}

.strategy-stage__time strong {
  color: var(--bg-white);
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: clamp(31px, 3.2vw, 45px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.strategy-stage__content h3 {
  margin-bottom: 16px;
  color: var(--bg-white);
  font-size: 27px;
  font-weight: 650;
  line-height: 1.4;
}

.strategy-stage__content > p {
  margin-bottom: 23px;
  color: rgba(219, 238, 249, 0.62);
  font-size: 16px;
  line-height: 1.9;
}

.strategy-stage__content ul {
  margin-bottom: 0;
}

.strategy-stage__content li {
  position: relative;
  padding: 8px 0 8px 16px;
  color: rgba(231, 244, 251, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  font-size: 13px;
}

.strategy-stage__content li::before {
  position: absolute;
  top: 18px;
  left: 0;
  width: 4px;
  height: 4px;
  content: "";
  background: var(--blue-light);
  border-radius: 50%;
}

.strategy-focus {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 80px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.strategy-focus li {
  position: relative;
  padding: 25px 18px;
  color: rgba(235, 247, 252, 0.78);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}

.strategy-focus li + li {
  border-left: 1px solid rgba(255, 255, 255, 0.11);
}

.strategy-vision {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  align-items: center;
  padding-top: 54px;
}

.strategy-vision span {
  color: #8ed6ff;
  font-size: 13px;
  font-weight: 650;
}

.strategy-vision strong {
  color: var(--bg-white);
  font-size: clamp(22px, 2.3vw, 32px);
  font-weight: 600;
  line-height: 1.55;
}

/* Contact */
.contact {
  background: linear-gradient(180deg, var(--page-bg) 0%, var(--section-bg-soft) 100%);
}

.contact-band {
  position: relative;
  display: grid;
  min-height: 550px;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  gap: 80px;
  align-items: center;
  overflow: hidden;
  padding: 76px 80px;
  color: var(--bg-white);
  isolation: isolate;
  background-color: var(--navy-dark);
  background:
    linear-gradient(90deg, rgba(3, 29, 51, 0.98) 0%, rgba(6, 43, 73, 0.94) 52%, rgba(6, 43, 73, 0.58) 100%),
    url("../images/og-cover.jpg") right center / 62% cover no-repeat;
  border-radius: 28px;
  box-shadow: 0 30px 80px rgba(3, 29, 51, 0.16);
}

/* 联系区是主要行动入口，即使脚本延迟或旧 HTML 仍带有 reveal 类，也必须保持可读。 */
.js .contact-band.reveal {
  opacity: 1;
  transform: none;
}

.contact-band::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  content: "";
  pointer-events: none;
  background: linear-gradient(90deg, rgba(6, 43, 73, 0.2), transparent);
}

.contact-band__content,
.contact-address {
  position: relative;
  z-index: 2;
}

.contact .section-label {
  color: #8ed6ff;
}

.contact .section-label::before {
  background: #8ed6ff;
}

.contact h2 {
  color: var(--bg-white);
}

.contact-band__content > p:not(.section-label):not(.sr-only) {
  max-width: 600px;
  margin: 25px 0 36px;
  color: rgba(236, 247, 252, 0.88);
  font-size: 16px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
}

.button--light {
  color: var(--blue-primary);
  background: var(--bg-white);
  border: 1px solid var(--bg-white);
}

.button--light:hover {
  box-shadow: 0 15px 38px rgba(0, 0, 0, 0.18);
  transform: translateY(-3px);
}

.button--glass {
  color: var(--bg-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.26);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.button--glass:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.45);
  transform: translateY(-3px);
}

.contact-address {
  display: flex;
  min-height: 210px;
  justify-content: center;
  flex-direction: column;
  padding-left: 44px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-address span {
  margin-bottom: 18px;
  color: #8ed6ff;
  font-size: 13px;
  font-weight: 650;
}

.contact-address strong {
  color: var(--bg-white);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.75;
}

.contact-address small {
  margin-top: 20px;
  color: rgba(213, 236, 248, 0.72);
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.16em;
}

.contact-channels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.contact-channels a {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
  padding: 13px 15px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s var(--ease);
}

.contact-channels a:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(142, 214, 255, 0.38);
  transform: translateY(-2px);
}

.contact-channels a span {
  margin: 0;
  color: #8ed6ff;
  font-size: 10px;
  font-weight: 650;
  line-height: 1.4;
}

.contact-channels b {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--bg-white);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

/* Footer */
.site-footer {
  color: var(--bg-white);
  background: var(--navy-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer .brand-copy strong {
  color: var(--bg-white);
}

.site-footer .brand-copy small {
  color: rgba(204, 229, 244, 0.46);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 1fr;
  gap: 80px;
  padding-top: 72px;
  padding-bottom: 58px;
}

.footer-brand > p {
  margin: 24px 0 0;
  color: rgba(204, 229, 244, 0.46);
  font-size: 13px;
}

.footer-links,
.footer-address {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.footer-links > p,
.footer-address > p {
  margin-bottom: 20px;
  color: var(--bg-white);
  font-size: 13px;
  font-weight: 650;
}

.footer-links > p::after,
.footer-address > p::after {
  display: block;
  width: 24px;
  height: 2px;
  margin-top: 8px;
  content: "";
  background: var(--blue-light);
}

.footer-links a {
  padding: 3px 0;
  color: rgba(204, 229, 244, 0.5);
  font-size: 12px;
  transition: color 0.25s ease, transform 0.25s var(--ease);
}

.footer-links a:hover {
  color: var(--bg-white);
  transform: translateX(4px);
}

.footer-address strong {
  margin-bottom: 8px;
  color: rgba(235, 247, 252, 0.78);
  font-size: 13px;
  font-weight: 550;
}

.footer-address span {
  color: rgba(204, 229, 244, 0.48);
  font-size: 12px;
  line-height: 1.8;
}

.footer-contact-links {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 3px;
  margin-top: 12px;
}

.footer-contact-links a {
  color: rgba(204, 229, 244, 0.58);
  font-size: 12px;
  line-height: 1.8;
  transition: color 0.25s ease, transform 0.25s var(--ease);
}

.footer-contact-links a:hover {
  color: var(--bg-white);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.footer-bottom p {
  margin-bottom: 0;
  color: rgba(196, 222, 238, 0.34);
  font-size: 10px;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 14px;
  white-space: nowrap;
}

.footer-bottom a {
  display: inline-block;
  color: rgba(196, 222, 238, 0.34);
  font-family: inherit;
  font-size: 10px;
  font-weight: 400;
  line-height: inherit;
  transition: color 0.25s ease;
}

.footer-bottom a:hover {
  color: #8ed6ff;
}

.footer-bottom p:last-child {
  font-family: "DIN Alternate", "Arial Narrow", Arial, sans-serif;
  letter-spacing: 0.14em;
}

.back-to-top {
  position: fixed;
  z-index: 800;
  right: 22px;
  bottom: 22px;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  cursor: pointer;
  color: var(--bg-white);
  background: rgba(6, 43, 73, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;
  box-shadow: 0 12px 32px rgba(3, 29, 51, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s var(--ease), background 0.25s ease;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--blue-primary);
}

/* Motion */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}

.js .reveal--right {
  transform: translateX(34px);
}

.js .reveal.in-view {
  opacity: 1;
  transform: translate(0);
}

@keyframes ambient-shift {
  from { transform: translate3d(-18px, -10px, 0) scale(0.96); }
  to { transform: translate3d(22px, 14px, 0) scale(1.04); }
}

@keyframes scroll-line {
  from { left: -50%; }
  to { left: 115%; }
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Large tablet */
@media (max-width: 1200px) {
  .container {
    width: min(var(--container), calc(100% - 48px));
  }

  .section {
    padding: 130px 0;
  }

  .primary-nav {
    gap: 20px;
  }

  .nav-cta {
    margin-left: 22px;
  }

  .hero {
    min-height: 850px;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 0.55fr) minmax(0, 0.45fr);
    gap: 26px;
  }

  .hero h1 {
    font-size: clamp(50px, 5vw, 68px);
  }

  .hero-media {
    width: calc(100% + 24px);
    margin-right: -24px;
  }

  .hero-media__image {
    height: 570px;
  }

  .architecture-layout {
    grid-template-columns: minmax(0, 0.72fr) minmax(520px, 1.28fr);
    gap: 60px;
  }

  .architecture-board {
    padding: 36px 30px 40px;
  }

  .business-mosaic {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.86fr);
  }

  .business-card__content {
    padding: 34px 32px;
  }

  .business-card--data .business-card__content,
  .business-card--cloud .business-card__content {
    padding: 36px 30px;
  }

  .solution-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(390px, 0.95fr);
  }

  .solution-content {
    padding: 50px 42px;
  }

  .strategy-stage {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* Navigation and compact tablet */
@media (max-width: 1020px) {
  :root {
    --header-height: 78px;
  }

  .nav-cta {
    display: none;
  }

  .menu-toggle {
    position: relative;
    z-index: 1002;
    display: block;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .primary-nav {
    position: fixed;
    z-index: 1001;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 7px;
    margin: 0;
    padding: 96px 28px 42px;
    visibility: hidden;
    opacity: 0;
    background:
      radial-gradient(circle at 50% 22%, rgba(54, 168, 255, 0.12), transparent 34%),
      rgba(246, 251, 255, 0.98);
    transform: translateY(-12px);
    transition: opacity 0.3s ease, transform 0.3s var(--ease), visibility 0.3s;
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .primary-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .primary-nav a {
    padding: 10px 18px;
    font-size: 21px;
    font-weight: 650;
  }

  .no-js .site-header {
    position: absolute;
    height: auto;
    background: rgba(246, 251, 255, 0.98);
  }

  .no-js .nav-shell {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .no-js .menu-toggle {
    display: none;
  }

  .no-js .primary-nav {
    position: static;
    width: 100%;
    justify-content: flex-start;
    flex-direction: row;
    gap: 18px;
    padding: 12px 0 0;
    visibility: visible;
    overflow-x: auto;
    opacity: 1;
    background: transparent;
    transform: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .no-js .primary-nav a {
    padding: 4px 0;
    font-size: 13px;
  }

  .hero h1 {
    font-size: clamp(46px, 5.4vw, 58px);
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-media__image {
    height: 520px;
  }

  .hero-media figcaption {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .editorial-heading {
    gap: 62px;
  }

  .editorial-heading__copy {
    padding-top: 28px;
  }

  .principles article {
    padding-right: 28px;
  }

  .principles article + article {
    padding-left: 28px;
  }

  .architecture-layout {
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .architecture-copy {
    max-width: 720px;
  }

  .architecture-board {
    max-width: 850px;
  }

  .business-mosaic {
    grid-template-columns: 1fr;
  }

  .business-card--featured {
    min-height: 680px;
  }

  .business-side {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: none;
  }

  .solution-panel {
    grid-template-columns: 1fr;
  }

  .solution-media {
    min-height: 470px;
  }

  .solution-content {
    padding: 54px;
  }

  .platform-pipeline {
    max-width: 720px;
  }

  .strategy-heading {
    gap: 52px;
  }

  .strategy-timeline {
    gap: 55px;
  }

  .contact-band {
    gap: 45px;
    padding: 64px 56px;
  }
}

/* Portrait tablet */
@media (max-width: 820px) {
  .section {
    padding: 112px 0;
  }

  .section-heading,
  .strategy-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-heading > p,
  .strategy-heading > p {
    max-width: 680px;
    margin-left: 0;
  }

  .hero {
    min-height: auto;
  }

  .hero::before {
    top: auto;
    width: 100%;
    height: 47%;
    border-bottom-left-radius: 0;
    border-top-left-radius: 90px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 54px;
    padding-top: 142px;
    padding-bottom: 105px;
  }

  .hero-copy {
    max-width: 720px;
    padding-right: 0;
  }

  .hero h1 {
    font-size: clamp(52px, 8vw, 66px);
  }

  .hero-media {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
  }

  .hero-media__image {
    height: 540px;
    border-radius: 28px;
  }

  .scroll-cue {
    display: none;
  }

  .editorial-heading {
    grid-template-columns: 1fr;
    gap: 38px;
    margin-bottom: 75px;
  }

  .editorial-heading__copy {
    max-width: 720px;
    padding-top: 0;
  }

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

  .principles article {
    min-height: 0;
    padding: 32px 0;
  }

  .principles article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .architecture-flow {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .architecture-flow li {
    min-height: 82px;
    align-items: center;
    flex-direction: row;
    gap: 20px;
    text-align: left;
  }

  .architecture-flow li:not(:last-child)::after {
    top: 58px;
    bottom: -4px;
    left: 27px;
    width: 1px;
    height: auto;
    background: linear-gradient(to bottom, rgba(54, 168, 255, 0.55), rgba(54, 168, 255, 0.16));
  }

  .architecture-flow li:not(:last-child)::before {
    display: none;
  }

  .architecture-flow li > div {
    margin-top: 0;
  }

  .architecture-flow strong {
    font-size: 15px;
  }

  .business-side {
    grid-template-columns: 1fr;
  }

  .business-card--data,
  .business-card--cloud {
    min-height: 340px;
  }

  .strategy-timeline {
    grid-template-columns: 1fr;
    gap: 72px;
    padding-top: 24px;
    padding-left: 32px;
  }

  .timeline-track {
    top: 0;
    bottom: 0;
    left: 6px;
    width: 1px;
    height: auto;
  }

  .strategy-stage {
    grid-template-columns: 0.72fr 1.28fr;
    gap: 32px;
  }

  .strategy-stage::before {
    top: 6px;
    left: -32px;
  }

  .strategy-focus {
    grid-template-columns: repeat(2, 1fr);
  }

  .strategy-focus li:nth-child(3) {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.11);
  }

  .strategy-focus li:nth-child(4) {
    border-top: 1px solid rgba(255, 255, 255, 0.11);
  }

  .strategy-vision {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-band {
    min-height: 620px;
    grid-template-columns: 1fr;
    gap: 48px;
    background:
      linear-gradient(90deg, rgba(3, 29, 51, 0.98), rgba(6, 43, 73, 0.82)),
      url("../images/og-cover.jpg") right center / cover no-repeat;
  }

  .contact-address {
    min-height: 0;
    padding: 30px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    border-left: 0;
  }

  .footer-main {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 52px;
  }

  .footer-address {
    grid-column: 1 / -1;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .section {
    padding: 92px 0;
  }

  .section h2 {
    font-size: 38px;
  }

  .section-heading {
    margin-bottom: 48px;
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    width: 52px;
    height: 44px;
  }

  .brand-copy strong {
    font-size: 17px;
  }

  .brand-copy small {
    font-size: 7px;
  }

  .hero-layout {
    gap: 44px;
    padding-top: 122px;
    padding-bottom: 82px;
  }

  .hero h1 {
    margin-bottom: 24px;
    font-size: clamp(40px, 11.5vw, 54px);
  }

  .hero h1 span {
    white-space: normal;
  }

  .hero h1 span:last-child {
    font-size: 0.88em;
  }

  .hero-description {
    margin-bottom: 30px;
    font-size: 16px;
  }

  .hero-description br {
    display: none;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-bottom: 36px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-capabilities li {
    padding-right: 14px;
    margin-right: 14px;
    font-size: 12px;
  }

  .hero-media__image {
    height: 390px;
    border-radius: 22px;
  }

  .media-label {
    min-width: 0;
    padding: 10px 12px;
  }

  .media-label--online {
    top: 16px;
    left: 16px;
  }

  .media-label--edge {
    right: 16px;
    bottom: 16px;
  }

  .media-label small {
    display: none;
  }

  .hero-media figcaption {
    padding: 17px 2px 0;
  }

  .hero-media figcaption strong {
    font-size: 12px;
  }

  .editorial-heading {
    margin-bottom: 52px;
  }

  .editorial-heading__copy .lead {
    font-size: 21px;
  }

  .editorial-heading__copy p:last-child {
    font-size: 16px;
  }

  .principles h3 {
    font-size: 22px;
  }

  .architecture-layout {
    gap: 42px;
  }

  .architecture-board {
    padding: 30px 22px;
    border-radius: 18px;
  }

  .architecture-board__head {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .business-mosaic,
  .business-side {
    gap: 16px;
  }

  .business-card {
    border-radius: 17px;
  }

  .business-card--featured {
    min-height: 0;
  }

  .business-card--featured .business-card__media {
    height: 280px;
  }

  .business-card__content,
  .business-card--data .business-card__content,
  .business-card--cloud .business-card__content {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 16px;
    max-width: none;
    padding: 28px 24px;
  }

  .business-icon {
    width: 46px;
    height: 46px;
  }

  .business-card h3 {
    font-size: 23px;
  }

  .business-card--data,
  .business-card--cloud {
    min-height: 0;
  }

  .business-card--cloud .business-card__media {
    opacity: 0.24;
    width: 60%;
  }

  .data-texture {
    display: none;
  }

  .solution-tabs {
    gap: 28px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  .solution-tabs::-webkit-scrollbar {
    display: none;
  }

  .solution-tab {
    flex: 0 0 auto;
    font-size: 14px;
  }

  .solution-panel {
    min-height: 0;
    border-radius: 18px;
  }

  .solution-media {
    min-height: 330px;
  }

  .solution-content {
    padding: 36px 25px 42px;
  }

  .solution-content h3 {
    font-size: 29px;
  }

  .feature-list li {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .feature-list span {
    text-align: left;
  }

  .solution-media--platform {
    padding: 25px;
  }

  .platform-pipeline {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .platform-pipeline > div {
    min-height: 82px;
    align-items: flex-start;
    padding: 15px 18px;
    text-align: left;
  }

  .platform-pipeline strong {
    margin: 2px 0;
  }

  .strategy {
    padding-top: 105px;
    padding-bottom: 105px;
  }

  .strategy-heading {
    margin-bottom: 65px;
  }

  .strategy-timeline {
    padding-left: 25px;
  }

  .strategy-stage {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .strategy-stage::before {
    left: -25px;
  }

  .strategy-stage__time strong {
    font-size: 34px;
  }

  .strategy-stage__content h3 {
    font-size: 24px;
  }

  .strategy-focus {
    margin-top: 60px;
  }

  .strategy-focus li {
    padding: 20px 8px;
    font-size: 12px;
  }

  .contact-band {
    min-height: 600px;
    gap: 36px;
    padding: 46px 25px;
    border-radius: 20px;
  }

  .contact h2 {
    font-size: 37px;
  }

  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-actions .button {
    width: 100%;
  }

  .contact-address strong {
    font-size: 17px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 38px;
    padding-top: 55px;
    padding-bottom: 45px;
  }

  .footer-address {
    grid-column: auto;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
    padding: 20px 0;
  }

  .footer-legal {
    flex-wrap: wrap;
    gap: 2px 10px;
    white-space: normal;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
  }
}

@media (max-width: 380px) {
  .hero h1 {
    font-size: 39px;
  }

  .hero-capabilities {
    gap: 9px;
  }

  .hero-capabilities li {
    padding-right: 0;
    margin-right: 0;
  }

  .hero-capabilities li::after {
    display: none;
  }

  .media-label__mark {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }

  [data-parallax] img {
    transform: none;
  }
}