/* ============================================================
   Peakstar Homepage — Site Styles
   Editorial / enterprise-AI consultancy layout.
   All values reference tokens.css design system.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--fg-1);
  background: var(--bg-paper);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

:root {
  --nav-h: 72px;
  --container: 1200px;
  --gutter: 24px;
  /* Tweakable accent (default jade). Tweaks panel flips this. */
  --accent: var(--peak-jade);
  --accent-soft: rgba(67,178,161,.12);
}

/* ============================================================
   LAYOUT PRIMITIVES
   ============================================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: var(--sp-24) 0; }
.section--tight { padding: var(--sp-16) 0; }
.section--dark {
  background: var(--ink-900);
  color: var(--gray-100);
}
.section--mist { background: var(--bg-mist); }
@media (max-width: 768px) {
  .section { padding: var(--sp-12) 0; }
  .section--tight { padding: var(--sp-10) 0; }
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(11, 20, 22, 0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition: background var(--dur-base) var(--ease-standard),
              backdrop-filter var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard);
  color: var(--gray-0);
  border-bottom: 1px solid transparent;
}
.nav--scrolled {
  background: rgba(250, 251, 252, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--fg-1);
  border-bottom: 1px solid var(--border-subtle);
}
.nav__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.nav__logo img { width: 30px; height: 30px; }
.nav__logo-sub {
  font-family: var(--font-zh);
  font-size: 12px;
  font-weight: 500;
  opacity: 0.7;
  letter-spacing: 0.04em;
  padding-left: 10px;
  margin-left: 10px;
  border-left: 1px solid currentColor;
  border-color: color-mix(in srgb, currentColor 24%, transparent);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  margin-left: auto;
}
.nav__link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-standard);
}
.nav__link:hover { opacity: 1; }
.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: var(--gray-0);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-fast) var(--ease-standard);
}
.nav__cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.nav--scrolled .nav__cta {
  background: var(--ink-900);
  color: var(--gray-0);
}
.nav__menu-btn { display: none; }

@media (max-width: 960px) {
  .nav__links { display: none; }
  .nav__menu-btn {
    display: inline-flex;
    margin-left: auto;
    padding: 8px;
    width: 40px; height: 40px;
    align-items: center;
    justify-content: center;
    color: inherit;
  }
  .nav__menu-btn svg { width: 22px; height: 22px; }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: transform var(--dur-fast) var(--ease-standard),
              box-shadow var(--dur-base) var(--ease-standard),
              background var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard);
}
.btn svg { width: 16px; height: 16px; }
.btn--primary {
  background: var(--grad-brand);
  color: var(--gray-0);
  box-shadow: 0 8px 24px -10px rgba(34,87,122,.5), 0 2px 6px rgba(15,40,50,.15);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -10px rgba(34,87,122,.6), 0 4px 10px rgba(15,40,50,.2); filter: brightness(1.04); }
.btn--ghost {
  background: transparent;
  color: var(--fg-1);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover { background: var(--gray-100); transform: translateY(-1px); }
.btn--ghost-dark {
  background: transparent;
  color: var(--gray-0);
  border: 1px solid rgba(255,255,255,0.24);
}
.btn--ghost-dark:hover { background: rgba(255,255,255,0.08); transform: translateY(-1px); }

/* Link arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--dur-base) var(--ease-out-quart); }
.link-arrow:hover svg { transform: translateX(4px); }

/* Eyebrow / kicker */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-5);
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
}
.eyebrow--center { justify-content: center; }

/* ============================================================
   HERO — dark, isometric grid, aurora
   ============================================================ */
.hero {
  position: relative;
  min-height: 760px;
  padding: calc(var(--nav-h) + 80px) 0 120px;
  background: var(--ink-900);
  color: var(--gray-0);
  overflow: hidden;
  isolation: isolate;
}
.hero__aurora {
  position: absolute;
  inset: -20% -10% -30% -10%;
  background:
    radial-gradient(45% 40% at 20% 30%, rgba(67,178,161,.32) 0%, rgba(67,178,161,0) 60%),
    radial-gradient(40% 35% at 85% 20%, rgba(128,237,165,.18) 0%, rgba(128,237,165,0) 55%),
    radial-gradient(55% 40% at 70% 90%, rgba(34,87,122,.45) 0%, rgba(34,87,122,0) 60%);
  z-index: 0;
  filter: blur(8px);
  opacity: 0.9;
  animation: auroraShift 18s ease-in-out infinite alternate;
}
@keyframes auroraShift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-2%, 1%, 0) scale(1.06); }
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 60% at 50% 45%, #000 35%, transparent 85%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 45%, #000 35%, transparent 85%);
  z-index: 0;
}
.hero__iso {
  position: absolute;
  right: -60px;
  top: 32%;
  width: 720px;
  height: 720px;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
  animation: floatSlow 14s ease-in-out infinite alternate;
}
@keyframes floatSlow {
  0%   { transform: translate3d(0, 0, 0) rotate(0deg); }
  100% { transform: translate3d(0, -18px, 0) rotate(3deg); }
}
@media (max-width: 1100px) {
  .hero__iso { right: -180px; opacity: 0.35; width: 560px; height: 560px; }
}
@media (max-width: 768px) {
  .hero__iso { display: none; }
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-12);
}
.hero__tagbar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 6px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--gray-100);
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(6px);
  margin-bottom: var(--sp-8);
  width: fit-content;
}
.hero__tagbar-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--ink-900);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 6.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--gray-0);
  max-width: 16ch;
  margin: 0 0 var(--sp-8);
}
.hero__title .zh { font-family: var(--font-zh); font-weight: 700; letter-spacing: -0.02em; }
.hero__title .accent {
  background: linear-gradient(120deg, var(--peak-mint) 0%, var(--peak-jade) 50%, var(--peak-teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-family: var(--font-zh);
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.7;
  color: rgba(255,255,255,0.72);
  max-width: 44ch;
  margin: 0 0 var(--sp-10);
  font-weight: 400;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-16);
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-8);
  padding-top: var(--sp-10);
  border-top: 1px solid rgba(255,255,255,0.1);
  max-width: 820px;
}
.hero__meta-item .k {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 2.6vw, 40px);
  letter-spacing: -0.02em;
  color: var(--gray-0);
  line-height: 1;
  margin-bottom: 6px;
}
.hero__meta-item .k .unit { font-size: 0.55em; color: var(--accent); margin-left: 2px; font-weight: 500; }
.hero__meta-item .l {
  font-family: var(--font-zh);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.4;
}
@media (max-width: 720px) {
  .hero__meta { grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
  .hero { min-height: auto; padding-bottom: 80px; }
}

/* Hero scroll hint */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 36px;
  background: linear-gradient(180deg, rgba(255,255,255,.35), rgba(255,255,255,0));
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 0.35; }
  50% { transform: scaleY(1.25); opacity: 0.7; }
}
@media (max-width: 768px) { .hero__scroll { display: none; } }

/* ============================================================
   LOGO WALL (client trust)
   ============================================================ */
.logowall {
  padding: var(--sp-12) 0;
  background: var(--gray-0);
  border-bottom: 1px solid var(--border-subtle);
}
.logowall__label {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 600;
  margin-bottom: var(--sp-8);
}
.logowall__grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--sp-8) var(--sp-10);
  align-items: center;
  justify-items: center;
  opacity: 0.78;
}
.logowall__item {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--fg-3);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--dur-base) var(--ease-standard);
}
.logowall__item:hover { color: var(--ink-900); }
.logowall__dot {
  width: 10px; height: 10px;
  border-radius: 2px;
  background: currentColor;
  transform: rotate(45deg);
  opacity: 0.6;
}
@media (max-width: 960px) { .logowall__grid { grid-template-columns: repeat(3, 1fr); } }

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.shead {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--sp-16);
  align-items: end;
  margin-bottom: var(--sp-16);
}
.shead__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 3.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--fg-1);
}
.shead__title .zh { font-family: var(--font-zh); }
.section--dark .shead__title { color: var(--gray-0); }
.shead__desc {
  font-family: var(--font-zh);
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg-2);
  max-width: 52ch;
  margin: 0;
}
.section--dark .shead__desc { color: rgba(255,255,255,0.7); }
@media (max-width: 860px) {
  .shead { grid-template-columns: 1fr; gap: var(--sp-6); }
}

/* ============================================================
   VALUES — Three pillars (professional · reliable · innovation)
   ============================================================ */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.value {
  padding: var(--sp-12) var(--sp-8);
  border-right: 1px solid var(--border-subtle);
  position: relative;
}
.value:last-child { border-right: 0; }
.value__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: var(--sp-6);
}
.value__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  color: var(--fg-1);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.value__title .zh { font-family: var(--font-zh); }
.value__title .en {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.value__desc {
  font-family: var(--font-zh);
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-2);
  margin: 0;
}
@media (max-width: 860px) {
  .values { grid-template-columns: 1fr; }
  .value { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
  .value:last-child { border-bottom: 0; }
}

/* ============================================================
   SERVICES
   ============================================================ */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--sp-6);
}
.svc {
  grid-column: span 4;
  position: relative;
  padding: var(--sp-10) var(--sp-8) var(--sp-8);
  border-radius: var(--radius-lg);
  background: var(--gray-0);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out-quart),
              box-shadow var(--dur-base) var(--ease-out-quart),
              border-color var(--dur-base) var(--ease-out-quart);
}
.svc::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-slow) var(--ease-out-quart);
}
.svc:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.svc:hover::before { transform: scaleX(1); }
.svc--feature {
  grid-column: span 6;
  background: var(--ink-900);
  color: var(--gray-0);
  border-color: transparent;
  overflow: hidden;
}
.svc--feature::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 80% at 100% 0%, rgba(67,178,161,.28) 0%, rgba(67,178,161,0) 60%),
    radial-gradient(60% 60% at 0% 100%, rgba(34,87,122,.35) 0%, rgba(34,87,122,0) 60%);
  z-index: 0;
  pointer-events: none;
}
.svc--feature > * { position: relative; z-index: 1; }

.svc--wide {
  grid-column: span 6;
}

.svc__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-2);
}
.svc__icon svg { width: 26px; height: 26px; }
.svc--feature .svc__icon {
  background: rgba(128,237,165,.16);
  color: var(--peak-mint);
}

.svc__num {
  position: absolute;
  top: var(--sp-6);
  right: var(--sp-8);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-3);
  letter-spacing: 0.08em;
}
.svc--feature .svc__num { color: rgba(255,255,255,.4); }

.svc__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.02em;
  margin: 0;
  color: inherit;
}
.svc__title .zh { font-family: var(--font-zh); }
.svc__desc {
  font-family: var(--font-zh);
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg-2);
  margin: 0;
  flex: 1;
}
.svc--feature .svc__desc { color: rgba(255,255,255,.72); }
.svc__list {
  list-style: none;
  padding: 0;
  margin: var(--sp-4) 0 0;
  display: grid;
  gap: 10px;
}
.svc__list li {
  font-family: var(--font-zh);
  font-size: 14px;
  color: var(--fg-2);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.5;
}
.svc--feature .svc__list li { color: rgba(255,255,255,.8); }
.svc__list li::before {
  content: "";
  width: 16px; height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--accent-soft);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2343B2A1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='5 12 10 17 19 7'/></svg>");
  background-size: 10px 10px;
  background-position: center;
  background-repeat: no-repeat;
}
.svc--feature .svc__list li::before {
  background-color: rgba(128,237,165,.2);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2380EDA5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='5 12 10 17 19 7'/></svg>");
}

.svc__more {
  margin-top: var(--sp-4);
  align-self: flex-start;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
}
.svc__more svg { width: 14px; height: 14px; transition: transform var(--dur-base) var(--ease-out-quart); }
.svc:hover .svc__more svg { transform: translateX(3px); }
.svc--feature .svc__more { color: var(--peak-mint); }

@media (max-width: 960px) {
  .svc-grid { grid-template-columns: 1fr; }
  .svc, .svc--feature, .svc--wide { grid-column: span 1; }
}

/* ============================================================
   FRAMEWORK — Methodology (4-step horizontal)
   ============================================================ */
.fw {
  position: relative;
  padding: var(--sp-16) var(--sp-10);
  border-radius: var(--radius-xl);
  background: var(--gray-0);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}
.fw::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0 0, rgba(67,178,161,.08) 0%, transparent 40%),
    radial-gradient(circle at 100% 100%, rgba(34,87,122,.06) 0%, transparent 40%);
  pointer-events: none;
}
.fw__grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.fw__step {
  position: relative;
  padding: 0 var(--sp-6) 0 0;
}
.fw__step::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0;
  right: var(--sp-6);
  height: 1px;
  background: var(--border-subtle);
}
.fw__step:first-child::before { left: 24px; }
.fw__step:last-child::before { right: 0; }
.fw__dot {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gray-0);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  margin-bottom: var(--sp-4);
  z-index: 1;
}
.fw__dot::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--accent-soft);
}
.fw__dot span { position: relative; z-index: 1; }
.fw__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--fg-1);
}
.fw__title .zh { font-family: var(--font-zh); }
.fw__desc {
  font-family: var(--font-zh);
  font-size: 14px;
  line-height: 1.65;
  color: var(--fg-2);
  margin: 0;
}
@media (max-width: 860px) {
  .fw { padding: var(--sp-10) var(--sp-6); }
  .fw__grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .fw__step::before { display: none; }
}

/* ============================================================
   INDUSTRIES
   ============================================================ */
.ind-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.ind {
  padding: var(--sp-8);
  border-radius: var(--radius-lg);
  background: var(--gray-0);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--dur-base) var(--ease-standard),
              transform var(--dur-base) var(--ease-out-quart),
              box-shadow var(--dur-base) var(--ease-out-quart);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.ind:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.ind__icon {
  width: 40px; height: 40px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-2);
}
.ind__icon svg { width: 32px; height: 32px; stroke-width: 1.4; }
.ind__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--fg-1);
}
.ind__title .zh { font-family: var(--font-zh); }
.ind__desc {
  font-family: var(--font-zh);
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-3);
  margin: 0;
}
@media (max-width: 860px) { .ind-grid { grid-template-columns: 1fr; } }

/* ============================================================
   STATS STRIP (between sections)
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: var(--sp-12) 0;
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.stats__item {
  padding: 0 var(--sp-6);
  border-right: 1px solid rgba(255,255,255,.08);
}
.stats__item:last-child { border-right: 0; }
.stats__k {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 4.8vw, 72px);
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--peak-mint), var(--peak-jade) 60%, var(--peak-teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 12px;
}
.stats__k .unit { font-size: 0.45em; color: var(--peak-mint); -webkit-text-fill-color: currentColor; background: none; font-weight: 500; }
.stats__l {
  font-family: var(--font-zh);
  font-size: 14px;
  color: rgba(255,255,255,.6);
  line-height: 1.5;
}
@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); gap: var(--sp-8) 0; }
  .stats__item { border-right: 0; padding: var(--sp-4) var(--sp-6); }
}

/* ============================================================
   CASE CARD (featured case study)
   ============================================================ */
.case {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--gray-0);
  box-shadow: var(--shadow-sm);
}
.case__text {
  padding: var(--sp-12);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--sp-8);
}
.case__tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  color: var(--jade-700);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  width: fit-content;
  margin-bottom: var(--sp-4);
}
.case__quote {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--fg-1);
  margin: 0;
}
.case__quote .zh { font-family: var(--font-zh); }
.case__attr {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border-subtle);
}
.case__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: var(--gray-0);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  font-family: var(--font-display);
}
.case__who { display: flex; flex-direction: column; }
.case__name { font-weight: 600; font-size: 15px; color: var(--fg-1); }
.case__role { font-size: 13px; color: var(--fg-3); font-family: var(--font-zh); }

.case__metrics {
  background: var(--ink-900);
  color: var(--gray-0);
  padding: var(--sp-12);
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: var(--sp-8);
  position: relative;
  overflow: hidden;
}
.case__metrics::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 50% at 100% 0%, rgba(67,178,161,.3) 0%, rgba(67,178,161,0) 60%);
  pointer-events: none;
}
.case__metric { position: relative; z-index: 1; }
.case__metric-k {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--peak-mint);
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.case__metric-k .unit { font-size: 0.5em; color: var(--peak-jade); }
.case__metric-l {
  font-family: var(--font-zh);
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
@media (max-width: 860px) {
  .case { grid-template-columns: 1fr; }
  .case__text, .case__metrics { padding: var(--sp-8); }
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}
.prod {
  position: relative;
  padding: var(--sp-10) var(--sp-8) var(--sp-8);
  border-radius: var(--radius-lg);
  background: var(--gray-0);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition: transform var(--dur-base) var(--ease-out-quart),
              box-shadow var(--dur-base) var(--ease-out-quart);
  overflow: hidden;
}
.prod::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-slow) var(--ease-out-quart);
}
.prod:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.prod:hover::before { transform: scaleX(1); }
.prod--feature {
  background: var(--ink-900);
  color: var(--gray-0);
  border-color: transparent;
}
.prod--feature::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 80% at 100% 0%, rgba(67,178,161,.28) 0%, rgba(67,178,161,0) 60%),
    radial-gradient(50% 50% at 0% 100%, rgba(34,87,122,.35) 0%, rgba(34,87,122,0) 60%);
  pointer-events: none;
}
.prod--feature > * { position: relative; z-index: 1; }
.prod__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-2); }
.prod__brand {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.prod--feature .prod__brand { color: var(--peak-mint); }
.prod__tag {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--grad-brand);
  color: var(--gray-0);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.prod__tag--soft { background: var(--gray-100); color: var(--fg-2); }
.prod--feature .prod__tag--soft { background: rgba(255,255,255,.1); color: rgba(255,255,255,.8); }
.prod__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: inherit;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.prod__title-sub {
  font-family: var(--font-zh);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0;
  color: var(--fg-3);
}
.prod--feature .prod__title-sub { color: rgba(255,255,255,.6); }
.prod__desc {
  font-family: var(--font-zh);
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-2);
  margin: 0;
}
.prod--feature .prod__desc { color: rgba(255,255,255,.72); }
.prod__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; flex: 1; }
.prod__list li {
  font-family: var(--font-zh);
  font-size: 13.5px;
  color: var(--fg-2);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}
.prod--feature .prod__list li { color: rgba(255,255,255,.8); }
.prod__list li::before {
  content: "";
  width: 14px; height: 14px;
  flex-shrink: 0;
  margin-top: 3px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2343B2A1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='5 12 10 17 19 7'/></svg>");
  background-size: 9px 9px;
  background-position: center;
  background-repeat: no-repeat;
}
.prod--feature .prod__list li::before {
  background-color: rgba(128,237,165,.2);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2380EDA5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='5 12 10 17 19 7'/></svg>");
}
.prod__foot { padding-top: var(--sp-3); border-top: 1px solid var(--border-subtle); margin-top: var(--sp-2); }
.prod--feature .prod__foot { border-top-color: rgba(255,255,255,.12); }
@media (max-width: 960px) { .prod-grid { grid-template-columns: 1fr; } }

/* Footer legal row */
.foot__legal {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.foot__legal a { font-size: 13px; color: rgba(255,255,255,.5); text-decoration: none; }
.foot__legal a:hover { color: var(--peak-mint); }

/* ============================================================
   INSIGHTS / BLOG
   ============================================================ */
.ins-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}
.ins {
  display: flex;
  flex-direction: column;
  background: var(--gray-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out-quart),
              box-shadow var(--dur-base) var(--ease-out-quart),
              border-color var(--dur-base) var(--ease-out-quart);
}
.ins:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.ins--feature { grid-column: span 3; display: grid; grid-template-columns: 1.1fr 1fr; }
.ins__cover {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-mist);
}
.ins--feature .ins__cover { aspect-ratio: auto; height: 100%; min-height: 320px; }
.ins__cover-art { position: absolute; inset: 0; }
.ins__cover-art svg { width: 100%; height: 100%; display: block; }
.ins__tag {
  position: absolute;
  top: 16px; left: 16px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(6px);
  color: var(--ink-900);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ins__body {
  padding: var(--sp-6) var(--sp-6) var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  flex: 1;
}
.ins--feature .ins__body { padding: var(--sp-10) var(--sp-8); justify-content: center; gap: var(--sp-4); }
.ins__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--fg-3);
  letter-spacing: 0.04em;
}
.ins__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--fg-4); }
.ins__title {
  font-family: var(--font-zh);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--fg-1);
  margin: 0;
  transition: color var(--dur-base) var(--ease-standard);
}
.ins--feature .ins__title { font-size: 26px; line-height: 1.3; letter-spacing: -0.015em; }
.ins:hover .ins__title { color: var(--accent); }
.ins__excerpt {
  font-family: var(--font-zh);
  font-size: 14px;
  line-height: 1.65;
  color: var(--fg-2);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ins--feature .ins__excerpt { font-size: 15px; -webkit-line-clamp: 3; }
.ins__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--sp-3);
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
}
.ins__more svg { width: 14px; height: 14px; transition: transform var(--dur-base) var(--ease-out-quart); }
.ins:hover .ins__more svg { transform: translateX(4px); }

.ins-foot {
  margin-top: var(--sp-10);
  display: flex;
  justify-content: center;
}

@media (max-width: 960px) {
  .ins-grid { grid-template-columns: repeat(2, 1fr); }
  .ins--feature { grid-column: span 2; grid-template-columns: 1fr; }
  .ins--feature .ins__cover { min-height: 200px; }
}
@media (max-width: 640px) {
  .ins-grid { grid-template-columns: 1fr; }
  .ins--feature { grid-column: span 1; }
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  border-top: 1px solid var(--border-subtle);
}
.faq__item {
  border-bottom: 1px solid var(--border-subtle);
}
.faq__q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-8) 0;
  text-align: left;
  gap: var(--sp-6);
  font-family: var(--font-zh);
  font-size: 18px;
  font-weight: 600;
  color: var(--fg-1);
  transition: color var(--dur-base) var(--ease-standard);
}
.faq__q:hover { color: var(--accent); }
.faq__q-ico {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-out-quart),
              background var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard);
}
.faq__q-ico svg { width: 14px; height: 14px; }
.faq__item[open] .faq__q-ico {
  background: var(--accent);
  color: var(--gray-0);
  border-color: var(--accent);
  transform: rotate(45deg);
}
.faq__a {
  padding: 0 var(--sp-12) var(--sp-8) 0;
  font-family: var(--font-zh);
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-2);
  max-width: 72ch;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.cta {
  position: relative;
  padding: var(--sp-24) 0;
  color: var(--gray-0);
  background: var(--ink-900);
  overflow: hidden;
  isolation: isolate;
}
.cta__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(40% 50% at 20% 50%, rgba(67,178,161,.35) 0%, rgba(67,178,161,0) 60%),
    radial-gradient(45% 55% at 80% 60%, rgba(128,237,165,.22) 0%, rgba(128,237,165,0) 60%),
    radial-gradient(50% 50% at 50% 100%, rgba(34,87,122,.4) 0%, rgba(34,87,122,0) 60%);
  filter: blur(6px);
  z-index: 0;
}
.cta__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 60% at 50% 50%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 50%, #000, transparent 80%);
  z-index: 0;
}
.cta__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}
.cta__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 4.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 var(--sp-6);
  color: var(--gray-0);
}
.cta__title .zh { font-family: var(--font-zh); }
.cta__title .accent {
  background: linear-gradient(120deg, var(--peak-mint), var(--peak-jade));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cta__sub {
  font-family: var(--font-zh);
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,.72);
  max-width: 48ch;
  margin: 0 0 var(--sp-8);
}
.cta__actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.cta__side {
  padding: var(--sp-8);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(8px);
}
.cta__side-row {
  display: flex;
  gap: 14px;
  padding: var(--sp-4) 0;
  align-items: flex-start;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.cta__side-row:last-child { border-bottom: 0; }
.cta__side-ico {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(67,178,161,.15);
  color: var(--peak-mint);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cta__side-ico svg { width: 18px; height: 18px; }
.cta__side-k { font-size: 12px; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 2px; }
.cta__side-v { font-family: var(--font-zh); font-size: 15px; color: var(--gray-0); line-height: 1.5; }
.cta__side-v a { color: var(--peak-mint); }
@media (max-width: 960px) {
  .cta__inner { grid-template-columns: 1fr; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  background: #060E10;
  color: rgba(255,255,255,.72);
  padding: var(--sp-16) 0 var(--sp-8);
  border-top: 1px solid rgba(255,255,255,.06);
}
.foot__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--sp-10);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.foot__brand { display: flex; flex-direction: column; gap: var(--sp-4); }
.foot__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--gray-0);
}
.foot__logo img { width: 32px; height: 32px; }
.foot__desc {
  font-family: var(--font-zh);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.5);
  max-width: 36ch;
  margin: 0;
}
.foot__col h5 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-0);
  letter-spacing: 0.04em;
  margin: 0 0 var(--sp-4);
  text-transform: uppercase;
}
.foot__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.foot__col a {
  font-family: var(--font-zh);
  color: rgba(255,255,255,.6);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-standard);
}
.foot__col a:hover { color: var(--peak-mint); }
.foot__bottom {
  padding-top: var(--sp-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-6);
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.foot__social { display: flex; gap: 10px; }
.foot__social a {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.6);
  transition: background var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard);
}
.foot__social a:hover { background: var(--accent); color: var(--ink-900); }
.foot__social svg { width: 16px; height: 16px; }
@media (max-width: 860px) {
  .foot__top { grid-template-columns: 1fr 1fr; }
  .foot__bottom { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   REVEAL — scroll-in animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease-out-quart),
              transform 700ms var(--ease-out-quart);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-in { opacity: 1; transform: none; transition: none; }
  .hero__aurora, .hero__iso { animation: none; }
}

/* ============================================================
   TWEAKS PANEL (hidden unless edit mode on)
   ============================================================ */
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 280px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(11, 20, 22, 0.94);
  color: var(--gray-100);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255,255,255,.1);
  z-index: 200;
  font-family: var(--font-body);
  font-size: 13px;
  display: none;
}
.tweaks.is-on { display: block; }
.tweaks h6 { margin: 0 0 12px; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--peak-mint); font-weight: 600; }
.tweaks__row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.tweaks__row:last-child { margin-bottom: 0; }
.tweaks__label { font-size: 12px; color: rgba(255,255,255,.6); }
.tweaks__swatches { display: flex; gap: 8px; }
.tweaks__sw {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-standard), border-color var(--dur-fast);
}
.tweaks__sw:hover { transform: scale(1.1); }
.tweaks__sw.is-active { border-color: var(--gray-0); }
.tweaks__seg { display: flex; background: rgba(255,255,255,.06); border-radius: var(--radius-md); padding: 3px; }
.tweaks__seg button {
  flex: 1;
  padding: 7px 10px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
  border-radius: 7px;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.tweaks__seg button.is-active {
  background: var(--accent);
  color: var(--ink-900);
  font-weight: 600;
}