/* =========================================================
   XX 产服 — 全生命周期赋能服务平台 · 官网样式
   Design System: 深蓝 + 青色 + 琥珀橙点缀
========================================================= */

/* ---------- Reset & Tokens ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* palette */
  --primary: #0B1B2A;
  --secondary: #102E50;
  --accent: #3B82F6;
  --highlight: #06B6D4;
  --warm: #F59E0B;
  --bg: #F8FAFC;
  --bg-soft: #EEF2F7;
  --card: #FFFFFF;
  --text: #0F172A;
  --text-muted: #64748B;
  --on-dark: #E2E8F0;
  --on-dark-muted: #94A3B8;
  --border: rgba(15, 23, 42, 0.08);
  --border-light: rgba(226, 232, 240, 0.6);

  /* type */
  --display: "Noto Serif SC", serif;
  --body: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "Inter", "SF Mono", Menlo, monospace;

  /* shadow */
  --shadow-sm: 0 1px 3px rgba(11, 27, 42, 0.06), 0 1px 2px rgba(11, 27, 42, 0.04);
  --shadow-md: 0 10px 30px rgba(11, 27, 42, 0.10), 0 4px 8px rgba(11, 27, 42, 0.04);
  --shadow-lg: 0 20px 60px rgba(11, 27, 42, 0.15), 0 8px 20px rgba(11, 27, 42, 0.06);
  --shadow-glow: 0 0 80px rgba(59, 130, 246, 0.25);

  /* radii */
  --r-card: 16px;
  --r-lg: 24px;
  --r-pill: 999px;

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 200ms var(--ease);
  --t-base: 400ms var(--ease);
  --t-slow: 800ms var(--ease);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

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

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
  color: inherit;
}

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

/* ---------- Helpers ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.section {
  padding: clamp(80px, 10vw, 140px) 0;
  position: relative;
}

.section-dark {
  background: var(--primary);
  color: var(--on-dark);
  background-image:
    radial-gradient(ellipse 80% 60% at 80% 0%, rgba(59, 130, 246, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 10% 100%, rgba(6, 182, 212, 0.10), transparent 60%);
}

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

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto clamp(48px, 6vw, 80px);
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.10);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.eyebrow-light {
  color: var(--highlight);
  background: rgba(6, 182, 212, 0.12);
}

.section-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-title-light {
  color: #fff;
}

.section-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-sub {
  margin: 24px auto 0;
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 720px;
}

.section-sub-light {
  color: var(--on-dark-muted);
}

.section-header .section-sub {
  text-align: center;
}

/* ---------- Button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: var(--t-base);
  cursor: pointer;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  background: #2563EB;
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(59, 130, 246, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: transparent;
  transition: var(--t-base);
}

.nav.scrolled {
  background: rgba(11, 27, 42, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  font-family: var(--display);
  letter-spacing: 0.02em;
}

.brand-name em {
  font-style: normal;
  color: var(--highlight);
}

.brand-name-light em {
  color: var(--warm);
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  transition: var(--t-fast);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-cta {
  margin-left: 8px;
  padding: 10px 22px;
  background: var(--highlight);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--r-pill);
  transition: var(--t-base);
}

.nav-cta:hover {
  background: #fff;
  transform: translateY(-1px);
}

.nav-burger {
  display: none;
  margin-left: auto;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.nav-burger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: var(--t-base);
}

.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  background: var(--primary);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000, transparent);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000, transparent);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.hero-orb-1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.6), transparent 70%);
  top: -180px;
  right: -120px;
  animation: orb-drift 18s ease-in-out infinite;
}

.hero-orb-2 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.45), transparent 70%);
  bottom: -120px;
  left: -100px;
  animation: orb-drift 22s ease-in-out infinite reverse;
}

.hero-orb-3 {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.18), transparent 70%);
  top: 30%;
  left: 60%;
  animation: orb-drift 25s ease-in-out infinite;
}

@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 40px) scale(0.95); }
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero .eyebrow {
  margin-bottom: 28px;
  color: var(--highlight);
  background: rgba(6, 182, 212, 0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.hero-title {
  font-family: var(--display);
  font-size: clamp(44px, 6vw, 88px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 16ch;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--highlight), #67E8F9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.65;
  color: var(--on-dark);
  max-width: 640px;
  margin-bottom: 44px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  max-width: 720px;
}

.hero-stats > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stats .num {
  font-family: var(--mono);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero-stats .num::after {
  content: attr(data-suffix);
  color: var(--highlight);
  font-size: 0.6em;
  margin-left: 4px;
  vertical-align: super;
}

.hero-stats label {
  font-size: 14px;
  color: var(--on-dark-muted);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
}

.scroll-indicator span {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: #fff;
  border-radius: 2px;
  animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 16px); opacity: 0; }
}

/* ---------- Trust Marquee ---------- */
.trust {
  padding: 56px 0;
  background: #fff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.trust-label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.trust-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.trust-track {
  display: inline-flex;
  gap: 56px;
  align-items: center;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  font-family: var(--display);
  animation: marquee 32s linear infinite;
  white-space: nowrap;
  padding-right: 56px;
}

.trust-track span {
  display: inline-flex;
  align-items: center;
  height: 36px;
  opacity: 0.7;
  transition: var(--t-base);
}

.trust-track span:hover {
  opacity: 1;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- Grid helpers ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

/* ---------- About ---------- */
.about-prose p {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.about-prose strong {
  color: var(--text);
  font-weight: 700;
}

/* ---------- Mission 3 cards ---------- */
.m-card {
  background: #fff;
  padding: 36px 32px;
  border-radius: var(--r-card);
  box-shadow: var(--shadow-md);
  transition: var(--t-base);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

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

.m-card-accent {
  background: var(--primary);
  color: var(--on-dark);
  border-color: transparent;
}

.m-card-accent h3 {
  color: #fff;
}

.m-card-accent p {
  color: var(--on-dark-muted);
}

.m-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.m-card-accent .m-label {
  color: var(--warm);
}

.m-card h3 {
  font-family: var(--display);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 14px;
  color: var(--text);
}

.m-card h3 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.m-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- Strategy graphic ---------- */
.strategy-graphic {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 80px;
}

.str-body,
.str-wing {
  padding: 36px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
  transition: var(--t-base);
}

.str-body {
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(59, 130, 246, 0.18), transparent),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 0 80px rgba(59, 130, 246, 0.15);
}

.str-body:hover,
.str-wing:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.25);
}

.str-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--highlight);
  margin-bottom: 14px;
}

.str-title {
  font-family: var(--display);
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.str-wings .str-title,
.str-wing .str-title {
  font-size: 22px;
}

.str-desc {
  font-size: 14px;
  color: var(--on-dark-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.str-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 24px;
}

.str-modules div {
  padding: 14px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  text-align: center;
}

.str-modules div b {
  font-weight: 600;
}

.str-list {
  list-style: none;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  padding-top: 16px;
}

.str-list li {
  font-size: 14px;
  color: var(--on-dark);
  padding: 6px 0;
  position: relative;
  padding-left: 18px;
}

.str-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 2px;
  background: var(--highlight);
}

.vs-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 50px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
}

.vs-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-card);
  padding: 24px;
}

.vs-head {
  font-size: 13px;
  font-weight: 600;
  color: var(--warm);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.vs-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--on-dark);
}

.vs-card strong {
  color: var(--highlight);
}

/* ---------- Lifecycle ---------- */
.lifecycle {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.lc-line {
  position: absolute;
  top: 38px;
  left: 64px;
  right: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--highlight), var(--warm), #EC4899);
  opacity: 0.4;
}

.lc-stage {
  position: relative;
  background: #fff;
  padding: 32px 28px;
  border-radius: var(--r-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--t-base);
}

.lc-stage:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.lc-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  color: #fff;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  box-shadow: var(--shadow-glow);
}

.lc-stage:nth-child(2) .lc-tag { background: linear-gradient(135deg, #06B6D4, #0EA5E9); }
.lc-stage:nth-child(3) .lc-tag { background: linear-gradient(135deg, #F59E0B, #EF4444); }
.lc-stage:nth-child(4) .lc-tag { background: linear-gradient(135deg, #8B5CF6, #EC4899); }

.lc-title {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 16px;
}

.lc-list {
  list-style: none;
  margin-bottom: 20px;
}

.lc-list li {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-muted);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.lc-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 12px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
}

.lc-output {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  letter-spacing: 0.02em;
}

/* ---------- Modules grid ---------- */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.mod {
  background: #fff;
  padding: 36px;
  border-radius: var(--r-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  position: relative;
  transition: var(--t-base);
  overflow: hidden;
}

.mod::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--t-base);
}

.mod:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(59, 130, 246, 0.2);
}

.mod:hover::before {
  transform: scaleX(1);
}

.mod-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
}

.mod-icon svg {
  width: 100%;
  height: 100%;
}

.mod h3 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.mod p {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.mod-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.08);
  padding: 4px 12px;
  border-radius: var(--r-pill);
}

/* ---------- Capital ---------- */
.cap-tools {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.cap-tool {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-card);
  transition: var(--t-base);
}

.cap-tool:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
}

.cap-tool b {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--highlight);
  letter-spacing: 0.05em;
}

.cap-tool span {
  font-size: 14.5px;
  color: var(--on-dark);
  font-weight: 500;
}

.cap-principles {
  background: rgba(255, 255, 255, 0.04);
  padding: 36px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.cap-pr-head {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  color: var(--warm);
  margin-bottom: 28px;
}

.cap-pr {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}

.cap-pr:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.cap-pr-num {
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--highlight);
  line-height: 1;
  letter-spacing: 0.02em;
}

.cap-pr h4 {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #fff;
}

.cap-pr p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--on-dark-muted);
}

/* ---------- Tracks ---------- */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 56px;
}

.track {
  background: #fff;
  padding: 32px 24px;
  border-radius: var(--r-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--t-base);
}

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

.track-num {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding: 4px 10px;
  background: rgba(59, 130, 246, 0.10);
  border-radius: 6px;
}

.track h3 {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.35;
}

.track ul {
  list-style: none;
}

.track ul li {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-muted);
  padding: 5px 0;
  padding-left: 14px;
  position: relative;
}

.track ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 1px;
  background: var(--highlight);
}

.frontier {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 40px 48px;
  border-radius: var(--r-lg);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.frontier::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.25), transparent 50%);
  pointer-events: none;
}

.frontier-head {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.frontier-dot {
  width: 10px;
  height: 10px;
  background: var(--warm);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--warm);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.frontier-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
}

.frontier-chips span {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  transition: var(--t-base);
}

.frontier-chips span:hover {
  background: rgba(6, 182, 212, 0.20);
  border-color: var(--highlight);
  color: var(--highlight);
}

/* ---------- Flywheel ---------- */
.flywheel-svg {
  max-width: 480px;
  margin: 0 auto;
}

.flywheel-svg svg {
  width: 100%;
  height: auto;
  animation: fw-spin 60s linear infinite;
}

@keyframes fw-spin {
  to { transform: rotate(360deg); }
}

.flywheel-svg svg text {
  user-select: none;
}

.flywheel-steps {
  list-style: none;
  counter-reset: steps;
  margin-top: 32px;
}

.flywheel-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-light);
}

.flywheel-steps li:last-child { border-bottom: 0; }

.flywheel-steps b {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  min-width: 100px;
}

.flywheel-steps span {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ---------- Advantage ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 60px;
  align-items: start;
}

.adv-header {
  position: sticky;
  top: 120px;
}

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

.adv {
  background: #fff;
  padding: 32px 28px;
  border-radius: var(--r-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--t-base);
  position: relative;
}

.adv:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.adv-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 14px;
}

.adv h3 {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 12px;
}

.adv p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-muted);
}

.adv strong {
  color: var(--accent);
}

/* ---------- Contact / CTA ---------- */
.section-cta {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.25), transparent 70%),
    var(--primary);
  padding-bottom: 100px;
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 70px;
}

.cta-card {
  position: relative;
  padding: 32px 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--r-card);
  transition: var(--t-base);
  display: block;
}

.cta-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
}

.cta-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--warm);
  letter-spacing: 0.15em;
  margin-bottom: 24px;
}

.cta-card h3 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}

.cta-card p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--on-dark-muted);
}

.cta-arrow {
  position: absolute;
  top: 32px;
  right: 28px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--highlight);
  font-size: 16px;
  transition: var(--t-base);
}

.cta-card:hover .cta-arrow {
  background: var(--highlight);
  color: var(--primary);
  transform: rotate(-45deg);
}

.contact-form {
  max-width: 720px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  padding: 40px;
  border-radius: var(--r-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.contact-form label {
  display: block;
}

.contact-form label span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--on-dark);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: #fff;
  font: inherit;
  font-size: 15px;
  transition: var(--t-fast);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 0;
  border-color: var(--highlight);
  background: rgba(255, 255, 255, 0.08);
}

.contact-form textarea {
  resize: vertical;
  margin-bottom: 24px;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
}

.form-success {
  display: none;
  margin-top: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--highlight);
  font-weight: 600;
}

.form-success.show {
  display: block;
}

.form-error {
  margin-top: 16px;
  padding: 10px 14px;
  text-align: center;
  font-size: 13px;
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-radius: 6px;
}

/* ---------- Footer ---------- */
.footer {
  background: #061221;
  color: var(--on-dark-muted);
  padding-top: 80px;
  font-size: 14px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.f-brand .brand {
  margin-bottom: 16px;
}

.f-tag {
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}

.f-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.f-cols h5 {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}

.f-cols a {
  display: block;
  font-size: 14px;
  padding: 5px 0;
  color: var(--on-dark-muted);
  transition: var(--t-fast);
}

.f-cols a:hover {
  color: var(--highlight);
}

.footer-bottom {
  padding: 24px 0;
  font-size: 13px;
}

.fb-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-slow), transform var(--t-slow);
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .strategy-graphic { grid-template-columns: 1fr; }
  .vs-row { grid-template-columns: 1fr; }
  .lifecycle { grid-template-columns: 1fr 1fr; }
  .lc-line { display: none; }
  .modules-grid { grid-template-columns: 1fr 1fr; }
  .tracks-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-grid { grid-template-columns: 1fr 1fr; }
  .adv-grid { grid-template-columns: 1fr; gap: 32px; }
  .adv-header { position: static; }
  .adv-cards { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
  body.menu-open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
  body.menu-open .nav-links a { padding: 14px 12px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }

  .grid-3 { grid-template-columns: 1fr; }
  .lifecycle { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: 1fr; }
  .tracks-grid { grid-template-columns: 1fr 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .adv-cards { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .str-modules { grid-template-columns: 1fr 1fr; }
  .cap-tools { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px; }
  .frontier { padding: 28px; }
  .flywheel-svg { max-width: 320px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
}