:root {
  color-scheme: light;
  --navy: #143c82;
  --blue: #1977f3;
  --cyan: #22b8f0;
  --green: #21a67a;
  --gold: #f0aa32;
  --ink: #14233f;
  --muted: #66758f;
  --line: #e2ecf8;
  --soft: #f5f9ff;
  --sky: #eaf5ff;
  --white: #ffffff;
  --shadow: 0 18px 48px rgba(31, 95, 190, 0.12);
  --page-bg: linear-gradient(180deg, #f9fcff 0, #ffffff 420px);
  --header-bg: rgba(255, 255, 255, 0.82);
  --header-border: rgba(226, 236, 248, 0.88);
  --hero-base: #eef7ff;
  --hero-glow: #dff4ff;
  --hero-overlay:
    linear-gradient(90deg, rgba(255,255,255,0.96) 0%, rgba(255,255,255,0.84) 38%, rgba(255,255,255,0.22) 73%),
    linear-gradient(180deg, rgba(244,250,255,0.18), rgba(225,243,255,0.18));
  --card-bg: #ffffff;
  --section-band-bg: linear-gradient(180deg, #f7fbff, #edf7ff);
  --muted-section-bg: linear-gradient(180deg, #f8fbff, #eef6ff);
}

[data-theme="dark"] {
  color-scheme: dark;
  --navy: #dbeaff;
  --blue: #66a9ff;
  --cyan: #55d7ff;
  --green: #56d8b0;
  --gold: #ffd06b;
  --ink: #edf6ff;
  --muted: #94a9c5;
  --line: rgba(139, 177, 222, 0.2);
  --soft: #0f1b2d;
  --sky: #132640;
  --white: #ffffff;
  --shadow: 0 22px 58px rgba(0, 0, 0, 0.28);
  --page-bg: linear-gradient(180deg, #071121 0, #0d1a2c 420px);
  --header-bg: rgba(8, 17, 31, 0.78);
  --header-border: rgba(139, 177, 222, 0.18);
  --hero-base: #081525;
  --hero-glow: rgba(25, 119, 243, 0.3);
  --hero-overlay:
    linear-gradient(90deg, rgba(7,17,33,0.96) 0%, rgba(7,17,33,0.84) 38%, rgba(7,17,33,0.28) 73%),
    linear-gradient(180deg, rgba(7,17,33,0.28), rgba(8,21,37,0.36));
  --card-bg: rgba(16, 29, 49, 0.88);
  --section-band-bg: linear-gradient(180deg, #0b1829, #10223a);
  --muted-section-bg: linear-gradient(180deg, #0d1b2f, #112640);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: color 220ms ease, background 220ms ease;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 5vw;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 8px 28px rgba(38, 86, 145, 0.06);
  backdrop-filter: blur(18px);
}

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

.brand-logo {
  width: 42px;
  height: 42px;
  display: block;
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(25, 119, 243, 0.22);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.brand:hover .brand-logo {
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 14px 30px rgba(25, 119, 243, 0.28);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #25364d;
  font-size: 14px;
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.site-nav a:hover {
  color: var(--blue);
  background: #eef6ff;
  transform: translateY(-1px);
}

[data-theme="dark"] .site-nav {
  color: #dbeaff;
}

[data-theme="dark"] .site-nav a:hover {
  background: rgba(102, 169, 255, 0.12);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

[data-theme="dark"] .nav-toggle {
  background: rgba(16, 29, 49, 0.84);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--navy);
}

.theme-toggle {
  display: grid;
  place-items: center;
  width: 74px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.64);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(25, 119, 243, 0.34);
}

.theme-toggle__track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: center;
  width: 58px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffffff, #eaf5ff);
  box-shadow: inset 0 0 0 1px rgba(20, 60, 130, 0.08);
}

.theme-toggle__thumb {
  position: absolute;
  left: 3px;
  top: 3px;
  z-index: 0;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: radial-gradient(circle at 38% 36%, #fff7c2, #ffc247 70%);
  box-shadow: 0 6px 18px rgba(240, 170, 50, 0.24);
  transition: transform 220ms ease, background 220ms ease, box-shadow 220ms ease;
}

.theme-toggle__icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 29px;
  height: 28px;
  opacity: 0.46;
  transition: opacity 180ms ease, filter 180ms ease;
}

.theme-toggle__icon--day {
  color: #f0aa32;
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(240, 170, 50, 0.42));
}

.theme-toggle__icon--night {
  color: #66a9ff;
}

.sun-core,
.moon-core {
  display: block;
  position: relative;
}

.sun-core {
  width: 13px;
  height: 13px;
  border-radius: 999px;
  background: currentColor;
  box-shadow:
    0 -8px 0 -5px currentColor,
    0 8px 0 -5px currentColor,
    8px 0 0 -5px currentColor,
    -8px 0 0 -5px currentColor,
    6px 6px 0 -5px currentColor,
    -6px -6px 0 -5px currentColor,
    6px -6px 0 -5px currentColor,
    -6px 6px 0 -5px currentColor;
}

.moon-core {
  width: 15px;
  height: 15px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: -5px 0 0 0 #eaf5ff inset;
}

[data-theme="dark"] .theme-toggle {
  background: rgba(16, 29, 49, 0.72);
}

[data-theme="dark"] .theme-toggle__track {
  background: linear-gradient(135deg, #081121, #142640);
  box-shadow: inset 0 0 0 1px rgba(219, 234, 255, 0.1);
}

[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(30px);
  background: radial-gradient(circle at 34% 32%, #55d7ff, #1977f3 72%);
  box-shadow: 0 0 18px rgba(85, 215, 255, 0.5);
}

[data-theme="dark"] .theme-toggle__icon--day {
  opacity: 0.42;
  filter: none;
}

[data-theme="dark"] .theme-toggle__icon--night {
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(85, 215, 255, 0.5));
}

[data-theme="dark"] .moon-core {
  box-shadow: -5px 0 0 0 #142640 inset;
}

.hero {
  position: relative;
  min-height: 96vh;
  display: flex;
  align-items: center;
  padding: 118px 5vw 112px;
  overflow: hidden;
  background: radial-gradient(circle at 70% 42%, var(--hero-glow) 0, rgba(223, 244, 255, 0) 38%), var(--hero-base);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  inset: 72px 0 0;
  background-image:
    linear-gradient(rgba(25,119,243,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25,119,243,0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, rgba(0,0,0,0.34), rgba(0,0,0,0.76) 50%, rgba(0,0,0,0.18) 92%);
  animation: grid-drift 18s linear infinite;
  z-index: 1;
}

.hero::after {
  width: 72vw;
  height: 140px;
  left: -18vw;
  bottom: 18%;
  background: linear-gradient(90deg, rgba(34,184,240,0), rgba(34,184,240,0.16), rgba(25,119,243,0));
  transform: rotate(-8deg);
  animation: light-sweep 8s ease-in-out infinite;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
  transform: scale(1.02);
  animation: hero-breathe 16s ease-in-out infinite alternate;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
  z-index: 1;
}

.hero-motion {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  opacity: 0.72;
  pointer-events: none;
}

.hero-scan {
  position: absolute;
  top: 72px;
  right: -18vw;
  bottom: 0;
  width: 58vw;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(100deg, transparent 0 34%, rgba(255,255,255,0.32) 42%, rgba(34,184,240,0.16) 47%, transparent 56%),
    repeating-linear-gradient(0deg, rgba(25,119,243,0.08) 0 1px, transparent 1px 20px);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
  mix-blend-mode: screen;
  opacity: 0.72;
  animation: scan-panel 7s ease-in-out infinite;
}

.hero-orbit {
  position: absolute;
  right: 17vw;
  top: 34%;
  width: 260px;
  height: 260px;
  z-index: 2;
  pointer-events: none;
  transform: translate(50%, -50%);
}

.hero-orbit span {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(34, 184, 240, 0.32);
  border-radius: 50%;
  transform: rotateX(62deg) rotateZ(0deg);
  animation: orbit-spin 12s linear infinite;
}

.hero-orbit span:nth-child(2) {
  inset: 32px;
  border-color: rgba(25, 119, 243, 0.32);
  animation-duration: 9s;
  animation-direction: reverse;
}

.hero-orbit span:nth-child(3) {
  inset: 78px;
  border-color: rgba(255, 255, 255, 0.55);
  animation-duration: 6s;
}

.hero-visual-ui {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.data-panel {
  position: absolute;
  min-width: 188px;
  padding: 14px 16px;
  color: #174070;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(185, 217, 255, 0.72);
  border-radius: 8px;
  box-shadow: 0 20px 50px rgba(31, 95, 190, 0.16);
  backdrop-filter: blur(16px);
  animation: panel-float 5.8s ease-in-out infinite;
}

[data-theme="dark"] .data-panel {
  color: #dbeaff;
  background: rgba(16, 29, 49, 0.72);
  border-color: rgba(139, 177, 222, 0.26);
}

[data-theme="dark"] .data-panel span {
  color: #94c8ff;
}

.data-panel span,
.data-panel strong {
  display: block;
}

.data-panel span {
  color: #4d83bd;
  font-size: 11px;
}

.data-panel strong {
  margin-top: 2px;
  font-size: 15px;
  font-weight: 600;
}

.data-panel i {
  display: block;
  height: 4px;
  margin-top: 12px;
  overflow: hidden;
  background: #d7ebff;
  border-radius: 999px;
}

.data-panel i::before {
  content: "";
  display: block;
  width: 42%;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: inherit;
  animation: progress-flow 3s ease-in-out infinite;
}

.panel-main {
  right: 17vw;
  top: 29%;
}

.panel-sub {
  right: 7vw;
  top: 49%;
  animation-delay: 550ms;
}

.panel-mini {
  right: 31vw;
  bottom: 24%;
  animation-delay: 1100ms;
}

.hero-content {
  position: relative;
  width: min(720px, 100%);
  animation: hero-slide 520ms ease both;
  z-index: 3;
}

.hero-anchor-bar {
  position: absolute;
  right: 5vw;
  bottom: 28px;
  left: 5vw;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(226, 236, 248, 0.9);
  border-radius: 8px;
  box-shadow: 0 22px 58px rgba(31, 95, 190, 0.14);
  backdrop-filter: blur(18px);
}

[data-theme="dark"] .hero-anchor-bar {
  background: rgba(8, 17, 31, 0.78);
  border-color: rgba(139, 177, 222, 0.18);
}

.hero-anchor-bar a {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  color: #244768;
  font-weight: 700;
  border-right: 1px solid var(--line);
  transition: color 180ms ease, background 180ms ease;
}

[data-theme="dark"] .hero-anchor-bar a {
  color: #c8ddf7;
  border-right-color: rgba(139, 177, 222, 0.18);
}

.hero-anchor-bar a:last-child {
  border-right: 0;
}

.hero-anchor-bar a:hover {
  color: var(--blue);
  background: #eef7ff;
}

[data-theme="dark"] .hero-anchor-bar a:hover {
  background: rgba(102, 169, 255, 0.12);
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  max-width: 620px;
  color: #10346f;
  font-size: clamp(36px, 3.9vw, 50px);
  line-height: 1.18;
  font-weight: 600;
  letter-spacing: 0;
}

[data-theme="dark"] h1 {
  color: #edf6ff;
}

h2 {
  margin-bottom: 18px;
  color: var(--navy);
  font-size: clamp(25px, 2.35vw, 34px);
  line-height: 1.24;
  font-weight: 600;
  letter-spacing: 0;
}

h3 {
  color: var(--navy);
  font-size: 18px;
  line-height: 1.35;
  font-weight: 600;
}

.hero-copy {
  max-width: 600px;
  margin-bottom: 30px;
  color: #575b6f;
  font-size: 18px;
  line-height: 1.72;
}

[data-theme="dark"] .hero-copy,
[data-theme="dark"] .lead-text,
[data-theme="dark"] .section-head p:not(.section-kicker),
[data-theme="dark"] .solution-card p,
[data-theme="dark"] .scope-grid p,
[data-theme="dark"] .scenario-list p,
[data-theme="dark"] .step p,
[data-theme="dark"] .risk-panel span,
[data-theme="dark"] .footer-grid p {
  color: #a9bad2;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.btn.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), #28a5ff);
  box-shadow: 0 14px 30px rgba(25, 119, 243, 0.28);
}

.btn.primary:hover {
  background: linear-gradient(135deg, #0f66df, #1aa8ef);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(25, 119, 243, 0.34);
}

.btn.secondary {
  color: var(--navy);
  background: rgba(255,255,255,0.88);
  border-color: var(--line);
  box-shadow: 0 12px 26px rgba(31, 95, 190, 0.08);
}

[data-theme="dark"] .btn.secondary {
  color: #dbeaff;
  background: rgba(16, 29, 49, 0.84);
  border-color: rgba(139, 177, 222, 0.22);
}

.btn.secondary:hover {
  border-color: #b7d8ff;
  transform: translateY(-2px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 520px;
  margin-top: 46px;
  gap: 12px;
  border: 0;
}

.hero-metrics div {
  padding: 16px 18px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(226, 236, 248, 0.9);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(31, 95, 190, 0.08);
}

[data-theme="dark"] .hero-metrics div {
  background: rgba(16, 29, 49, 0.76);
  border-color: rgba(139, 177, 222, 0.2);
}

.hero-metrics strong {
  display: block;
  color: var(--gold);
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 13px;
}

.container {
  position: relative;
  z-index: 2;
  width: min(1180px, 90vw);
  margin: 0 auto;
}

.section,
.section-band,
.contact-section {
  position: relative;
  overflow: hidden;
  padding: 92px 0;
}

.section-motion {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.motion-ribbon {
  background:
    linear-gradient(112deg, transparent 0 20%, rgba(25,119,243,0.08) 20.4% 21.2%, transparent 21.6% 100%),
    linear-gradient(112deg, transparent 0 54%, rgba(34,184,240,0.1) 54.4% 55.2%, transparent 55.6% 100%);
  background-size: 580px 100%, 760px 100%;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  animation: ribbon-slide 14s linear infinite;
}

.motion-grid {
  background-image:
    linear-gradient(rgba(25,119,243,0.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25,119,243,0.075) 1px, transparent 1px),
    linear-gradient(115deg, transparent 0 44%, rgba(34,184,240,0.12) 45%, transparent 49% 100%);
  background-size: 58px 58px, 58px 58px, 520px 100%;
  mask-image: linear-gradient(180deg, transparent 0, #000 22%, #000 78%, transparent 100%);
  opacity: 0.76;
  animation: module-grid-drift 18s linear infinite;
}

.motion-flow {
  background:
    repeating-linear-gradient(96deg, transparent 0 72px, rgba(25,119,243,0.06) 73px, transparent 75px),
    linear-gradient(105deg, transparent 0 28%, rgba(33,166,122,0.1) 36%, rgba(34,184,240,0.12) 46%, transparent 56% 100%);
  background-size: 100% 100%, 620px 100%;
  mask-image: linear-gradient(90deg, transparent 0, #000 14%, #000 86%, transparent 100%);
  animation: module-flow-scan 11s ease-in-out infinite;
}

.motion-steps {
  background:
    linear-gradient(90deg, transparent 0, rgba(25,119,243,0.08) 48%, transparent 56%),
    repeating-linear-gradient(90deg, transparent 0 13%, rgba(25,119,243,0.055) 13.2% 13.7%, transparent 14% 20%);
  background-size: 720px 100%, 100% 100%;
  mask-image: linear-gradient(180deg, transparent 6%, #000 30%, #000 74%, transparent 100%);
  animation: module-path-run 13s linear infinite;
}

.motion-dots {
  background-image:
    radial-gradient(circle, rgba(25,119,243,0.16) 1px, transparent 1.6px),
    radial-gradient(circle, rgba(240,170,50,0.14) 1px, transparent 1.6px),
    linear-gradient(120deg, transparent 0 40%, rgba(34,184,240,0.08) 48%, transparent 58% 100%);
  background-size: 46px 46px, 74px 74px, 680px 100%;
  background-position: 0 0, 22px 18px, 0 0;
  mask-image: linear-gradient(180deg, transparent 0, #000 18%, #000 82%, transparent 100%);
  opacity: 0.62;
  animation: module-dot-drift 16s linear infinite;
}

.motion-lines {
  background:
    linear-gradient(112deg, transparent 0 32%, rgba(255,255,255,0.68) 32.3% 32.7%, transparent 33% 100%),
    linear-gradient(112deg, transparent 0 62%, rgba(25,119,243,0.16) 62.3% 63%, transparent 63.3% 100%),
    repeating-linear-gradient(0deg, rgba(25,119,243,0.05) 0 1px, transparent 1px 42px);
  background-size: 540px 100%, 760px 100%, 100% 42px;
  opacity: 0.7;
  animation: module-line-drift 12s ease-in-out infinite;
}

.motion-compliance {
  background:
    repeating-linear-gradient(90deg, rgba(25,119,243,0.055) 0 1px, transparent 1px 62px),
    linear-gradient(118deg, transparent 0 52%, rgba(33,166,122,0.08) 58%, rgba(34,184,240,0.11) 66%, transparent 76% 100%);
  background-size: 100% 100%, 720px 100%;
  mask-image: linear-gradient(90deg, #000, transparent 90%);
  animation: module-compliance-scan 15s linear infinite;
}

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

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

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 64px;
  align-items: start;
}

.lead-text {
  color: #575b6f;
  font-size: 16px;
  line-height: 1.8;
}

.section-head {
  max-width: 780px;
  margin-bottom: 42px;
}

.section-head p:not(.section-kicker) {
  color: #575b6f;
  font-size: 16px;
  line-height: 1.75;
}

.section-head.narrow {
  max-width: 680px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.solution-card {
  min-height: 286px;
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.solution-card:hover,
.scope-grid article:hover,
.scenario-list article:hover,
.step:hover {
  transform: translateY(-6px);
  border-color: #b9d9ff;
  box-shadow: 0 24px 60px rgba(31, 95, 190, 0.16);
}

.icon-box {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 24px;
  place-items: center;
  color: var(--white);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 6px;
}

.solution-card:nth-child(2) .icon-box {
  background: linear-gradient(135deg, #4b7cff, #22b8f0);
}

.solution-card:nth-child(3) .icon-box {
  background: linear-gradient(135deg, var(--green), #4fd0b0);
}

.solution-card:nth-child(4) .icon-box {
  background: linear-gradient(135deg, var(--gold), #ffd56d);
}

.solution-card p,
.scope-grid p,
.scenario-list p,
.step p,
.risk-panel span,
.footer-grid p {
  color: #575b6f;
  font-size: 15px;
  line-height: 1.72;
  font-weight: 400;
}

.business-scope {
  background: linear-gradient(180deg, var(--card-bg), var(--soft));
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.scope-grid article {
  min-height: 218px;
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(31, 95, 190, 0.07);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.scope-grid article::before {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  margin-bottom: 22px;
  background: var(--blue);
  border-radius: 999px;
}

.scope-grid article:nth-child(2)::before {
  background: var(--green);
}

.scope-grid article:nth-child(3)::before {
  background: var(--gold);
}

.scenario-list {
  display: grid;
  gap: 16px;
}

.scenario-list article {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 22px;
  align-items: start;
  padding: 26px 30px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(31, 95, 190, 0.06);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.scenario-list article:nth-child(2) {
  border-left-color: var(--green);
}

.scenario-list article:nth-child(3) {
  border-left-color: var(--gold);
}

.scenario-list article:nth-child(4) {
  border-left-color: var(--cyan);
}

.scenario-index {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: var(--blue);
  font-weight: 800;
  background: #eaf5ff;
  border-radius: 6px;
}

[data-theme="dark"] .scenario-index {
  background: rgba(102, 169, 255, 0.12);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  border: 0;
  border-radius: 0;
  overflow: visible;
}

.step {
  min-height: 230px;
  padding: 28px 22px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(31, 95, 190, 0.07);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.step:last-child {
  border-right: 0;
}

.step span {
  display: grid;
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 50%;
  font-weight: 800;
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.architecture-grid div {
  min-height: 128px;
  padding: 24px;
  color: var(--white);
  background: linear-gradient(135deg, #1977f3, #22b8f0);
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
}

.architecture-grid div:nth-child(2n) {
  background: linear-gradient(135deg, #1f9fdd, var(--green));
}

.architecture-grid div:nth-child(3n) {
  background: linear-gradient(135deg, #5984ff, var(--blue));
}

.architecture-grid span {
  display: block;
  margin-top: 10px;
  color: rgba(255,255,255,0.82);
  font-size: 14px;
  font-weight: 400;
}

.compliance {
  background:
    linear-gradient(90deg, rgba(25,119,243,0.05), rgba(34,184,240,0.08)),
    var(--card-bg);
}

.risk-panel {
  display: grid;
  gap: 12px;
}

.risk-panel div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  align-items: center;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.risk-panel strong {
  color: var(--navy);
}

.contact-section {
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(20, 60, 130, 0.94), rgba(25, 119, 243, 0.9)),
    linear-gradient(90deg, #143c82, #22b8f0);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .contact-section {
  background:
    linear-gradient(120deg, rgba(6, 17, 32, 0.96), rgba(14, 48, 90, 0.94)),
    linear-gradient(90deg, #071121, #123760);
}

.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(120deg, transparent 0 38%, rgba(255,255,255,0.12) 38% 39%, transparent 39% 100%),
    linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 260px 100%, 100% 54px;
  animation: contact-flow 12s linear infinite;
}

.contact-wrap {
  position: relative;
}

.contact-section h2,
.contact-section .section-kicker {
  color: var(--white);
}

.contact-section p {
  color: rgba(255,255,255,0.78);
}

.contact-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.78fr);
  gap: 70px;
  align-items: start;
}

.contact-note {
  margin-top: 36px;
  padding: 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 8px;
}

.address-card {
  margin-top: 28px;
  padding: 20px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 8px;
}

.address-card strong,
.address-card span,
.contact-note strong,
.contact-note span {
  display: block;
}

.address-card span,
.contact-note span {
  margin-top: 8px;
  color: rgba(255,255,255,0.74);
}

.visit-panel {
  display: grid;
  gap: 16px;
  padding: 24px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 8px;
  box-shadow: 0 24px 64px rgba(10, 50, 100, 0.22);
}

.visit-panel div {
  padding: 18px;
  background: rgba(255,255,255,0.88);
  border-radius: 8px;
}

[data-theme="dark"] .visit-panel div {
  background: rgba(16, 29, 49, 0.9);
}

.visit-panel span {
  display: inline-grid;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 6px;
  font-weight: 800;
}

.visit-panel strong {
  display: block;
  color: var(--navy);
  font-size: 18px;
}

.visit-panel p {
  margin: 8px 0 0;
  color: #575b6f;
}

[data-theme="dark"] .visit-panel p {
  color: #a9bad2;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 24px;
  color: var(--ink);
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 24px 64px rgba(10, 50, 100, 0.22);
}

.contact-form label {
  color: #334158;
  font-size: 14px;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 8px;
  padding: 12px 13px;
  color: var(--ink);
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: none;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 103, 168, 0.12);
}

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

.site-footer {
  padding: 36px 0;
  background: #102e5e;
  color: var(--white);
}

[data-theme="dark"] .site-footer {
  background: #071121;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 680ms ease, transform 680ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-slide {
  from {
    transform: translateY(18px);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes hero-breathe {
  from {
    transform: scale(1.02) translateX(0);
  }
  to {
    transform: scale(1.055) translateX(10px);
  }
}

@keyframes scan-panel {
  0%, 100% {
    transform: translateX(-8%);
    opacity: 0.42;
  }
  50% {
    transform: translateX(10%);
    opacity: 0.78;
  }
}

@keyframes orbit-spin {
  from {
    transform: rotateX(62deg) rotateZ(0deg);
  }
  to {
    transform: rotateX(62deg) rotateZ(360deg);
  }
}

@keyframes panel-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes progress-flow {
  0%, 100% {
    transform: translateX(0);
    width: 36%;
  }
  50% {
    transform: translateX(122%);
    width: 52%;
  }
}

@keyframes grid-drift {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 56px 56px, 56px 56px;
  }
}

@keyframes light-sweep {
  0%, 100% {
    opacity: 0.35;
    transform: translateX(0) rotate(-8deg);
  }
  50% {
    opacity: 0.8;
    transform: translateX(34vw) rotate(-8deg);
  }
}

@keyframes contact-flow {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 260px 0, 0 54px;
  }
}

@keyframes ribbon-slide {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 580px 0, -760px 0;
  }
}

@keyframes module-grid-drift {
  from {
    background-position: 0 0, 0 0, -520px 0;
  }
  to {
    background-position: 58px 58px, 58px 58px, 520px 0;
  }
}

@keyframes module-flow-scan {
  0%, 100% {
    background-position: 0 0, -620px 0;
    opacity: 0.48;
  }
  50% {
    background-position: 32px 0, 180px 0;
    opacity: 0.82;
  }
}

@keyframes module-path-run {
  from {
    background-position: -720px 0, 0 0;
  }
  to {
    background-position: 720px 0, 0 0;
  }
}

@keyframes module-dot-drift {
  from {
    background-position: 0 0, 22px 18px, -680px 0;
  }
  to {
    background-position: 46px -46px, 96px -56px, 680px 0;
  }
}

@keyframes module-line-drift {
  0%, 100% {
    background-position: -540px 0, 280px 0, 0 0;
    opacity: 0.46;
  }
  50% {
    background-position: 160px 0, -260px 0, 0 42px;
    opacity: 0.78;
  }
}

@keyframes module-compliance-scan {
  from {
    background-position: 0 0, -720px 0;
  }
  to {
    background-position: 62px 0, 720px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

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

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}

.footer-grid span {
  color: rgba(255,255,255,0.66);
  font-size: 13px;
}

.footer-grid p {
  margin-bottom: 0;
  color: rgba(255,255,255,0.72);
}

@media (max-width: 980px) {
  .site-nav {
    position: absolute;
    top: 72px;
    right: 5vw;
    left: 5vw;
    display: none;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    padding: 8px 18px;
    background: var(--card-bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 20px 44px rgba(16,47,85,0.14);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 14px 0;
  }

  .nav-toggle {
    display: block;
  }

  .header-actions {
    gap: 10px;
  }

  .theme-toggle {
    width: 66px;
  }

  .two-col,
  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .solution-grid,
  .scope-grid,
  .timeline,
  .architecture-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .step {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0 3vw;
  }

  .header-actions {
    gap: 8px;
  }

  .brand strong {
    max-width: 150px;
    font-size: 13px;
  }

  .brand small {
    display: none;
  }

  .theme-toggle {
    width: 58px;
  }

  .theme-toggle__track {
    width: 48px;
    height: 26px;
  }

  .theme-toggle__icon {
    width: 24px;
    height: 26px;
  }

  .theme-toggle__thumb {
    width: 20px;
    height: 20px;
  }

  [data-theme="dark"] .theme-toggle__thumb {
    transform: translateX(22px);
  }

  .hero {
    min-height: 94vh;
    padding: 104px 5vw 118px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(255,255,255,0.94), rgba(255,255,255,0.68));
  }

  [data-theme="dark"] .hero-overlay {
    background: linear-gradient(90deg, rgba(7,17,33,0.95), rgba(7,17,33,0.58));
  }

  .hero-scan,
  .hero-orbit,
  .hero-visual-ui {
    opacity: 0.38;
  }

  .data-panel {
    display: none;
  }

  .hero-anchor-bar {
    grid-template-columns: 1fr 1fr;
    bottom: 16px;
  }

  .hero-anchor-bar a {
    min-height: 44px;
    font-size: 13px;
  }

  .hero-anchor-bar a:nth-child(2) {
    border-right: 0;
  }

  .hero-copy {
    font-size: 15px;
    line-height: 1.7;
  }

  h1 {
    font-size: clamp(28px, 8vw, 34px);
    line-height: 1.2;
  }

  h2 {
    font-size: clamp(24px, 7vw, 30px);
  }

  h3 {
    font-size: 17px;
  }

  .hero-metrics,
  .solution-grid,
  .scope-grid,
  .timeline,
  .architecture-grid,
  .contact-form,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics {
    max-width: 320px;
  }

  .section,
  .section-band,
  .contact-section {
    padding: 68px 0;
  }

  .scenario-list article {
    grid-template-columns: 1fr;
  }

  .risk-panel div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}