/* ============================================
   Tianhong Corporate Web Design System
   ============================================ */

:root {
  /* Brand palette */
  --brand-950: #061327;
  --brand-900: #072042;
  --brand-800: #0a2f62;
  --brand-700: #0c3e82;
  --brand-600: #0f4f9f;
  --brand-500: #1660c1;
  --brand-400: #2e7ad8;
  --brand-300: #5b9cf0;
  --brand-200: #8cc0ff;
  --brand-100: #cbe3ff;
  --brand-50: #e8f3ff;

  --accent-600: #c67c0e;
  --accent-500: #f6a518;
  --accent-400: #ffbf3c;
  --accent-100: #fff1cc;

  /* Neutral palette */
  --neutral-0: #ffffff;
  --neutral-25: #f7f9fc;
  --neutral-50: #f0f4f9;
  --neutral-100: #e1e8f0;
  --neutral-200: #d3dbe5;
  --neutral-300: #b9c3d0;
  --neutral-400: #95a1b2;
  --neutral-500: #6e7a8c;
  --neutral-600: #4c5668;
  --neutral-700: #344055;
  --neutral-800: #212a3a;
  --neutral-900: #131a27;

  /* Success & status */
  --success-500: #1d9a66;
  --warning-500: #d99100;
  --danger-500: #d94841;

  /* Typography scale */
  --font-sans: "Inter", "Source Han Sans SC", "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-serif: "Spectral", "STSong", serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;

  --font-size-100: 0.75rem;
  --font-size-200: 0.875rem;
  --font-size-300: 1rem;
  --font-size-400: 1.125rem;
  --font-size-500: 1.25rem;
  --font-size-600: 1.5rem;
  --font-size-700: 1.75rem;
  --font-size-800: 2rem;
  --font-size-900: clamp(2.25rem, 4vw, 3rem);
  --font-size-1000: clamp(2.75rem, 5vw, 3.75rem);

  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --line-height-relaxed: 1.65;

  /* Spacing scale */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 3.5rem;
  --space-10: 4rem;
  --space-11: 4.5rem;
  --space-12: 5rem;

  /* Shape & shadow */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 2rem;
  --radius-pill: 999px;

  --shadow-xs: 0 4px 12px rgba(12, 28, 55, 0.03);
  --shadow-sm: 0 10px 24px rgba(12, 28, 55, 0.06);
  --shadow-md: 0 18px 40px rgba(12, 28, 55, 0.08);
  --shadow-lg: 0 28px 60px rgba(12, 28, 55, 0.12);

  --transition-fast: 150ms ease;
  --transition-base: 220ms ease;
  --transition-slow: 360ms ease;

  --container-width: min(1200px, calc(100% - 2 * clamp(1.25rem, 4vw, 3.5rem)));
  --container-wide: min(1320px, calc(100% - 2 * clamp(1rem, 3vw, 3rem)));
  --container-narrow: min(960px, calc(100% - 2 * clamp(1.5rem, 8vw, 6rem)));

  --header-height: 76px;
  --topbar-height: 42px;

  --backdrop-blur: 18px;
  --grid-gap: clamp(1.5rem, 4vw, 3rem);

  --hero-gradient: linear-gradient(120deg, #103466 0%, #0c4f9e 55%, #1c74e7 100%);
  --soft-gradient: linear-gradient(135deg, rgba(23, 72, 140, 0.08), rgba(23, 72, 140, 0));
}

/* ============================================
   Base Reset
   ============================================ */

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--neutral-700);
  background-color: var(--neutral-25);
  font-size: var(--font-size-300);
  line-height: var(--line-height-relaxed);
}

main {
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base), opacity var(--transition-base);
}

a:hover {
  color: var(--brand-500);
}

p {
  margin: 0 0 var(--space-4);
}

strong {
  font-weight: 600;
  color: var(--neutral-800);
}

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

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-5);
}

button {
  font: inherit;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
}

code,
pre {
  font-family: var(--font-mono);
  background-color: rgba(13, 41, 79, 0.06);
  border-radius: var(--radius-sm);
  padding: 0.125rem 0.375rem;
}

blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--brand-500);
  background-color: var(--neutral-50);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

::selection {
  background-color: rgba(22, 96, 193, 0.18);
  color: var(--brand-900);
}

:focus-visible {
  outline: 2px solid var(--brand-400);
  outline-offset: 3px;
}

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

/* ============================================
   Typography
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  color: var(--neutral-900);
  margin: 0 0 var(--space-3);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--font-size-1000);
}

h2 {
  font-size: var(--font-size-900);
}

h3 {
  font-size: var(--font-size-700);
}

h4 {
  font-size: var(--font-size-600);
}

h5 {
  font-size: var(--font-size-500);
}

h6 {
  font-size: var(--font-size-400);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-200);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-500);
}

.lead {
  font-size: var(--font-size-400);
  color: var(--neutral-600);
  max-width: 56ch;
}

.text-muted {
  color: var(--neutral-500);
}

.text-small {
  font-size: var(--font-size-200);
}

.text-large {
  font-size: var(--font-size-500);
}

.text-brand {
  color: var(--brand-500);
}

.text-accent {
  color: var(--accent-500);
}

.highlight {
  background: linear-gradient(120deg, rgba(22, 96, 193, 0.08), rgba(22, 96, 193, 0));
  padding: 0 var(--space-1);
  border-radius: var(--radius-sm);
}

/* ============================================
   Containers & Layout
   ============================================ */

.container {
  width: var(--container-width);
  margin: 0 auto;
}

.container--wide {
  width: var(--container-wide);
  margin: 0 auto;
}

.container--narrow {
  width: var(--container-narrow);
  margin: 0 auto;
}

.section {
  position: relative;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.section--tight {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.section--light {
  background-color: var(--neutral-0);
}

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

.section--dark {
  background: var(--brand-900);
  color: rgba(255, 255, 255, 0.86);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark h5,
.section--dark h6 {
  color: var(--neutral-0);
}

.section__header {
  display: grid;
  gap: var(--space-3);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section__header--center {
  text-align: center;
  justify-items: center;
}

.section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.layout-split {
  display: grid;
  align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--grid-gap);
}

.layout-split--center {
  align-items: center;
}

.layout-split--reverse {
  direction: rtl;
}

.layout-split--reverse > * {
  direction: ltr;
}

.layout-stack {
  display: grid;
  gap: var(--space-5);
}

.auto-grid {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.auto-grid--dense {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-3 {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.stack-lg > * + * {
  margin-top: var(--space-6);
}

.surface {
  background-color: var(--neutral-0);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.surface--inset {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(12, 63, 130, 0.08);
}

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(11, 47, 97, 0), rgba(11, 47, 97, 0.15), rgba(11, 47, 97, 0));
  margin: var(--space-6) 0;
}

/* ============================================
   Cards & Media
   ============================================ */

.card {
  background-color: var(--neutral-0);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  border: 1px solid rgba(9, 36, 74, 0.04);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.card--outlined {
  border: 1px solid rgba(12, 63, 130, 0.14);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.92));
}

.card--soft {
  background: linear-gradient(135deg, rgba(46, 122, 216, 0.08), rgba(46, 122, 216, 0));
}

.card--dark {
  background: var(--brand-900);
  color: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-sm);
}

.card--dark h3,
.card--dark h4 {
  color: var(--neutral-0);
}

.card__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.card__header {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--font-size-500);
  margin: 0;
}

.card__body {
  color: var(--neutral-600);
}

.card__footer {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.card__stat {
  display: grid;
  gap: var(--space-1);
}

.card__stat-number {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  color: var(--brand-500);
}

.media-feature {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.media-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-feature__badge {
  position: absolute;
  inset: auto auto 20px 20px;
  background: rgba(6, 19, 39, 0.76);
  color: var(--neutral-0);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-200);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============================================
   Badges & Labels
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-200);
  font-weight: 600;
  background-color: rgba(22, 96, 193, 0.12);
  color: var(--brand-600);
}

.badge--soft {
  background-color: rgba(12, 62, 128, 0.08);
  color: var(--brand-700);
}

.badge--light {
  background-color: rgba(255, 255, 255, 0.16);
  color: var(--neutral-0);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  background-color: var(--neutral-50);
  color: var(--neutral-600);
  font-size: var(--font-size-200);
  font-weight: 500;
}

.tag--outline {
  border: 1px solid rgba(6, 35, 70, 0.16);
  background-color: transparent;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  padding: 0.9rem 1.8rem;
  font-weight: 600;
  font-size: var(--font-size-300);
  border: 1px solid transparent;
  background: var(--neutral-0);
  color: var(--brand-600);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-base), color var(--transition-base);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(18, 67, 129, 0.16);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: var(--neutral-0);
  border-color: transparent;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
}

.btn-secondary {
  background: var(--neutral-0);
  color: var(--brand-700);
  border-color: rgba(6, 28, 55, 0.08);
  box-shadow: var(--shadow-xs);
}

.btn-ghost {
  background: transparent;
  color: var(--neutral-0);
  border-color: rgba(255, 255, 255, 0.38);
}

.btn-link {
  padding: 0;
  border: none;
  background: none;
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
  color: var(--brand-500);
}

.btn-small {
  padding: 0.6rem 1.2rem;
  font-size: var(--font-size-200);
}

.btn-large {
  padding: 1.1rem 2.4rem;
  font-size: var(--font-size-400);
}

.btn-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  background-color: rgba(22, 96, 193, 0.12);
  color: var(--brand-600);
}

/* ============================================
   Lists & Utilities
   ============================================ */

.list-clean {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list-check {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.list-check li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--neutral-600);
}

.list-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: radial-gradient(circle at center, var(--brand-500), var(--brand-800));
  box-shadow: 0 10px 20px rgba(20, 68, 138, 0.2);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-5);
}

.metric {
  display: grid;
  gap: var(--space-2);
}

.metric__number {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 600;
  color: var(--brand-600);
  letter-spacing: -0.04em;
}

.metric__label {
  color: var(--neutral-500);
}

.stat-board {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat {
  display: grid;
  gap: var(--space-1);
}

.stat__value {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--brand-500);
}

.stat__label {
  font-size: var(--font-size-200);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--neutral-500);
}

.icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(15, 79, 159, 0.1);
  display: grid;
  place-items: center;
  color: var(--brand-600);
  font-size: 1.25rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--neutral-0);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table thead {
  background: rgba(12, 62, 128, 0.06);
  color: var(--neutral-700);
  text-align: left;
  font-size: var(--font-size-200);
  letter-spacing: 0.04em;
}

.table th,
.table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(15, 79, 159, 0.06);
}

.table tbody tr:hover {
  background-color: rgba(15, 79, 159, 0.04);
}

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  background: var(--neutral-0);
}

/* ============================================
   Breadcrumb
   ============================================ */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--font-size-200);
  color: var(--neutral-500);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb__item::after {
  content: "›";
  color: var(--neutral-300);
}

.breadcrumb__item:last-child::after {
  display: none;
}

.breadcrumb__item--active {
  color: var(--brand-500);
  font-weight: 600;
}

/* ============================================
   Timeline
   ============================================ */

.timeline {
  position: relative;
  display: grid;
  gap: var(--space-5);
}

.timeline::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 calc(0.5rem);
  width: 2px;
  background: linear-gradient(180deg, rgba(15, 79, 159, 0), rgba(15, 79, 159, 0.4), rgba(15, 79, 159, 0));
}

.timeline__item {
  position: relative;
  padding-left: 2.5rem;
}

.timeline__marker {
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--neutral-0);
  border: 4px solid var(--brand-500);
  box-shadow: 0 0 0 6px rgba(22, 96, 193, 0.12);
}

.timeline__title {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-500);
}

.timeline__time {
  font-size: var(--font-size-200);
  color: var(--brand-500);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============================================
   Logo Cloud
   ============================================ */

.logo-cloud {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

.logo-cloud img {
  max-height: 46px;
  margin: 0 auto;
  opacity: 0.86;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.logo-cloud img:hover {
  opacity: 1;
  transform: translateY(-4px);
}

/* ============================================
   Hero & Page Headers
   ============================================ */

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 8vw, 7rem) 0 clamp(4rem, 7vw, 6.5rem);
  color: var(--neutral-0);
  background: var(--hero-gradient);
}

.hero::after {
  content: "";
  position: absolute;
  inset: -20% 30% auto -25%;
  height: 100%;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0));
  opacity: 0.7;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero__content {
  display: grid;
  gap: var(--space-4);
}

.hero__headline {
  font-size: clamp(2.75rem, 5vw, 4rem);
  line-height: 1.05;
  font-weight: 600;
}

.hero__lede {
  font-size: var(--font-size-400);
  color: rgba(255, 255, 255, 0.82);
  max-width: 52ch;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.hero__stats {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.hero__stat {
  display: grid;
  gap: var(--space-1);
}

.hero__stat-number {
  font-size: clamp(2.4rem, 4.5vw, 3.4rem);
  font-weight: 600;
}

.hero__stat-label {
  font-size: var(--font-size-200);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  opacity: 0.75;
}

.hero__media {
  position: relative;
}

.hero__media::before {
  content: "";
  position: absolute;
  inset: 10% -12% -12% 10%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0));
  z-index: 0;
}

.hero__media img {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.hero--simple .hero__inner {
  grid-template-columns: minmax(0, 1fr);
}

.hero--simple .hero__content {
  gap: var(--space-3);
  max-width: min(720px, 100%);
}

.hero--simple .hero__content p {
  font-size: var(--font-size-300);
  color: rgba(255, 255, 255, 0.86);
  margin: 0;
}

.page-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(140deg, rgba(10, 55, 112, 0.1), rgba(10, 55, 112, 0));
  padding: clamp(3.5rem, 6vw, 5rem) 0;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% 45%;
  height: 120%;
  transform: rotate(-12deg);
  background: linear-gradient(140deg, rgba(22, 96, 193, 0.12), rgba(22, 96, 193, 0));
}

.page-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-4);
}

.page-hero__title {
  font-size: clamp(2.25rem, 4vw, 3rem);
}

.page-hero__summary {
  font-size: var(--font-size-400);
  color: var(--neutral-600);
  max-width: 70ch;
}

/* ============================================
   Content Layouts
   ============================================ */

.content-layout {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
}

.content-layout__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--topbar-height) + 1.5rem);
  align-self: start;
  background: var(--neutral-0);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(6, 35, 70, 0.06);
}

.side-nav {
  display: grid;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.side-nav a {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--neutral-600);
  font-weight: 500;
  transition: background var(--transition-base), color var(--transition-base);
}

.side-nav a:hover,
.side-nav .is-active a {
  background: rgba(22, 96, 193, 0.12);
  color: var(--brand-600);
}

.content-layout__body {
  display: grid;
  gap: var(--space-6);
}

.content-section {
  display: grid;
  gap: var(--space-3);
  background: var(--neutral-0);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid rgba(6, 35, 70, 0.06);
  box-shadow: var(--shadow-xs);
}

.content-section--soft {
  background: linear-gradient(135deg, rgba(22, 96, 193, 0.08), rgba(22, 96, 193, 0));
}

.content-section__title {
  font-size: var(--font-size-600);
}

.accordion {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(6, 35, 70, 0.06);
  background: var(--neutral-0);
}

.accordion__item + .accordion__item {
  border-top: 1px solid rgba(6, 35, 70, 0.08);
}

.accordion__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
}

.accordion__body {
  padding: 0 1.5rem 1.5rem;
  color: var(--neutral-600);
}

/* ============================================
   Forms
   ============================================ */

form {
  display: grid;
  gap: var(--space-4);
}

.form-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.form-group {
  display: grid;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--font-size-200);
  font-weight: 600;
  color: var(--neutral-600);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.input,
textarea,
select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(6, 35, 70, 0.12);
  background-color: var(--neutral-0);
  font-family: inherit;
  font-size: var(--font-size-300);
  transition: border var(--transition-base), box-shadow var(--transition-base);
}

.input:focus,
textarea:focus,
select:focus {
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(22, 96, 193, 0.18);
  outline: none;
}

textarea {
  min-height: 160px;
  resize: vertical;
}

.form-note {
  font-size: var(--font-size-200);
  color: var(--neutral-500);
}

/* ============================================
   News Cards
   ============================================ */

.news-grid {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.news-card {
  display: grid;
  gap: var(--space-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--neutral-0);
  border: 1px solid rgba(6, 35, 70, 0.06);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.news-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.news-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card__body {
  padding: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.news-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-200);
  color: var(--neutral-500);
}

.news-card__title {
  font-size: var(--font-size-500);
  color: var(--neutral-800);
}

.news-card__excerpt {
  color: var(--neutral-600);
}

/* ============================================
   Project Cases
   ============================================ */

.case-card {
  display: grid;
  gap: var(--space-3);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--neutral-0);
  border: 1px solid rgba(6, 35, 70, 0.06);
  box-shadow: var(--shadow-xs);
}

.case-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.case-card__body {
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

.case-card__meta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ============================================
   Team & People Cards
   ============================================ */

.person-card {
  text-align: center;
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--neutral-0);
  border: 1px solid rgba(6, 35, 70, 0.05);
  box-shadow: var(--shadow-xs);
}

.person-card img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto;
  box-shadow: 0 12px 28px rgba(12, 63, 130, 0.18);
}

.person-card__role {
  font-size: var(--font-size-200);
  color: var(--brand-500);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.person-card__bio {
  color: var(--neutral-600);
}

/* ============================================
   CTA Banner
   ============================================ */

.cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  gap: var(--space-4);
  background: linear-gradient(125deg, rgba(12, 62, 128, 0.96), rgba(22, 96, 193, 0.86));
  color: var(--neutral-0);
  box-shadow: var(--shadow-md);
}

.cta::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto 60%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
  opacity: 0.6;
}

.cta__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  align-items: center;
  justify-content: space-between;
}

.cta__content {
  display: grid;
  gap: var(--space-2);
  max-width: 520px;
}

.cta h3 {
  color: var(--neutral-0);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
}

.cta p {
  color: rgba(255, 255, 255, 0.86);
}

/* ============================================
   Contact Cards
   ============================================ */

.contact-grid {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-card {
  background: var(--neutral-0);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(6, 35, 70, 0.06);
  display: grid;
  gap: var(--space-2);
}

.contact-card__title {
  font-size: var(--font-size-400);
  color: var(--brand-600);
}

.contact-card a {
  color: var(--brand-500);
  font-weight: 600;
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  backdrop-filter: blur(var(--backdrop-blur));
  box-shadow: 0 1px 0 rgba(6, 32, 66, 0.04);
}

.site-header__top {
  background: var(--brand-900);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-200);
  line-height: 1;
}

.site-header__top .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.75rem 0;
}

.site-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.site-meta__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  opacity: 0.9;
}

.site-meta__item svg {
  width: 16px;
  height: 16px;
  color: var(--accent-500);
}

.navbar {
  position: relative;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(6, 35, 70, 0.06);
  backdrop-filter: blur(18px);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--font-size-500);
  color: var(--brand-700);
  letter-spacing: -0.02em;
}

.logo__mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(140deg, var(--brand-600), var(--brand-400));
  display: grid;
  place-items: center;
  color: var(--neutral-0);
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 14px 24px rgba(22, 96, 193, 0.24);
}

.logo span {
  background: linear-gradient(120deg, var(--brand-700), var(--brand-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-300);
  font-weight: 500;
  color: var(--neutral-600);
  transition: background var(--transition-base), color var(--transition-base);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.35rem;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--brand-500), var(--brand-400));
  opacity: 0;
  transform: scaleX(0.2);
  transform-origin: center;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-link:hover {
  color: var(--brand-600);
  background: rgba(22, 96, 193, 0.08);
}

.nav-item.active > .nav-link,
.nav-item:hover > .nav-link {
  color: var(--brand-600);
}

.nav-item.active > .nav-link::after,
.nav-item:hover > .nav-link::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-link--cta {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-400));
  color: var(--brand-900);
  font-weight: 600;
  box-shadow: 0 16px 30px rgba(194, 131, 16, 0.28);
}

.nav-link--cta:hover {
  background: linear-gradient(135deg, var(--accent-600), var(--accent-400));
  color: var(--brand-900);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  min-width: 220px;
  background: var(--neutral-0);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-fast);
  border: 1px solid rgba(6, 35, 70, 0.06);
  z-index: 100;
}

.nav-item:hover > .dropdown-menu,
.nav-item:focus-within > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.65rem 1.25rem;
  color: var(--neutral-600);
  font-weight: 500;
  font-size: var(--font-size-300);
  transition: background var(--transition-base), color var(--transition-base);
}

.dropdown-item:hover {
  background: rgba(22, 96, 193, 0.08);
  color: var(--brand-600);
}

.menu-toggle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(6, 35, 70, 0.12);
  background: var(--neutral-0);
  display: none;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-direction: column;
  padding: 0;
  transition: border var(--transition-base), box-shadow var(--transition-base);
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--brand-600);
  transition: transform var(--transition-base), opacity var(--transition-base);
  border-radius: var(--radius-pill);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   Footer
   ============================================ */

footer {
  background: radial-gradient(circle at top left, rgba(46, 122, 216, 0.18), rgba(6, 19, 39, 0.92)), var(--brand-950);
  color: rgba(255, 255, 255, 0.86);
  padding: clamp(3rem, 6vw, 5rem) 0 var(--space-6);
}

.footer__top {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
}

.footer__brand {
  display: grid;
  gap: var(--space-3);
}

.footer__summary {
  color: rgba(255, 255, 255, 0.72);
}

.footer__title {
  font-size: var(--font-size-300);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-0);
}

.footer__list {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 0;
  display: grid;
  gap: var(--space-2);
}

.footer__list a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-200);
  transition: color var(--transition-base), transform var(--transition-base);
}

.footer__list a:hover {
  color: var(--neutral-0);
  transform: translateX(2px);
}

.footer__contact {
  display: grid;
  gap: var(--space-2);
  font-size: var(--font-size-200);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-200);
}

.social-links {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.social-links a {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.1);
  color: var(--neutral-0);
  transition: background var(--transition-base), transform var(--transition-base);
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-3px);
}

/* ============================================
   Back To Top
   ============================================ */

.back-to-top {
  position: fixed;
  inset: auto var(--space-5) var(--space-5) auto;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: var(--neutral-0);
  font-size: 1.25rem;
  border: none;
  display: grid;
  place-items: center;
  box-shadow: 0 16px 35px rgba(10, 60, 120, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 1200;
}

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

.back-to-top:hover {
  transform: translateY(-4px);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1200px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__media {
    max-width: 520px;
    justify-self: center;
  }

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

@media (max-width: 1024px) {
  :root {
    --header-height: 68px;
  }

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

  .nav-menu {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(6, 35, 70, 0.06);
    box-shadow: 0 18px 36px rgba(6, 32, 66, 0.12);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-base);
    opacity: 0;
  }

  .nav-menu.active {
    max-height: 520px;
    opacity: 1;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
  }

  .nav-link::after {
    display: none;
  }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0.25rem 0;
    background: rgba(12, 62, 128, 0.04);
    border-radius: var(--radius-md);
    margin-top: 0.25rem;
  }

  .dropdown-item {
    padding: 0.65rem 1rem 0.65rem 1.75rem;
  }

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

  .content-layout {
    grid-template-columns: 1fr;
  }

  .content-layout__sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --container-width: min(100%, calc(100% - 2 * 1rem));
    --grid-gap: 1.75rem;
  }

  .site-header__top {
    display: none;
  }

  .section {
    padding: clamp(2.5rem, 6vw, 3.5rem) 0;
  }

  .section__header--center {
    text-align: left;
    justify-items: flex-start;
  }

  .hero {
    padding: clamp(3.5rem, 10vw, 4.5rem) 0;
  }

  .hero__meta,
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn,
  .btn-large {
    width: 100%;
  }

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
  }

  .card {
    padding: var(--space-4);
  }

  .content-section {
    padding: var(--space-4);
  }

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

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

  .news-card {
    border-radius: var(--radius-md);
  }

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

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