/* Tussah Silk Global — themes + motion background */
:root {
  --radius: 14px;
  --radius-sm: 10px;
  --header-h: 72px;
  --global-strip-h: 38px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.52s;
  --dur-fast: 0.28s;
  --font-display: "Cormorant Garamond", "Noto Sans SC", serif;
  --font-ui: "Outfit", "Noto Sans SC", system-ui, sans-serif;
  --font-zh: "Noto Sans SC", "Outfit", sans-serif;
}

/* Theme: Champagne (default) */
body[data-theme="champagne"] {
  --bg: #0c0b0a;
  --bg-elevated: #151311;
  --surface: #1c1a17;
  --border: rgba(245, 236, 220, 0.14);
  --text: #f7f1e8;
  --text-muted: rgba(247, 241, 232, 0.55);
  --accent: #d4b56a;
  --accent-2: #e8d5a8;
  --accent-soft: rgba(212, 181, 106, 0.2);
  --gold-line: linear-gradient(115deg, #f0e6d2, #d4b56a 42%, #9a7b4f);
  --mesh-a: rgba(212, 181, 106, 0.35);
  --mesh-b: rgba(180, 120, 70, 0.2);
  --mesh-c: rgba(90, 70, 50, 0.45);
  --blob-1: rgba(212, 181, 106, 0.45);
  --blob-2: rgba(140, 90, 120, 0.22);
  --blob-3: rgba(70, 120, 140, 0.18);
  --header-tint: rgba(12, 11, 10, 0.86);
  --btn-shadow: rgba(212, 181, 106, 0.32);
}

body[data-theme="jade"] {
  --bg: #070f0e;
  --bg-elevated: #0d1a18;
  --surface: #122422;
  --border: rgba(200, 245, 232, 0.12);
  --text: #e8faf5;
  --text-muted: rgba(200, 245, 232, 0.52);
  --accent: #5eead4;
  --accent-2: #99f6e4;
  --accent-soft: rgba(94, 234, 212, 0.18);
  --gold-line: linear-gradient(115deg, #ccfbf1, #5eead4 45%, #2dd4bf);
  --mesh-a: rgba(45, 212, 191, 0.35);
  --mesh-b: rgba(20, 80, 90, 0.5);
  --mesh-c: rgba(10, 40, 45, 0.65);
  --blob-1: rgba(94, 234, 212, 0.4);
  --blob-2: rgba(56, 189, 248, 0.18);
  --blob-3: rgba(16, 185, 129, 0.15);
  --header-tint: rgba(7, 15, 14, 0.88);
  --btn-shadow: rgba(94, 234, 212, 0.28);
}

body[data-theme="dusk"] {
  --bg: #100a12;
  --bg-elevated: #1a0f1c;
  --surface: #241329;
  --border: rgba(251, 207, 232, 0.12);
  --text: #fdf2f8;
  --text-muted: rgba(253, 242, 248, 0.55);
  --accent: #f472b6;
  --accent-2: #fbcfe8;
  --accent-soft: rgba(244, 114, 182, 0.2);
  --gold-line: linear-gradient(115deg, #fce7f3, #f472b6 42%, #c084fc);
  --mesh-a: rgba(244, 114, 182, 0.28);
  --mesh-b: rgba(120, 60, 140, 0.35);
  --mesh-c: rgba(40, 20, 60, 0.55);
  --blob-1: rgba(244, 114, 182, 0.38);
  --blob-2: rgba(167, 139, 250, 0.22);
  --blob-3: rgba(236, 72, 153, 0.12);
  --header-tint: rgba(16, 10, 18, 0.88);
  --btn-shadow: rgba(244, 114, 182, 0.3);
}

body[data-theme="aurora"] {
  --bg: #060a14;
  --bg-elevated: #0c1424;
  --surface: #121c30;
  --border: rgba(186, 230, 253, 0.12);
  --text: #f0f9ff;
  --text-muted: rgba(224, 242, 254, 0.55);
  --accent: #7dd3fc;
  --accent-2: #bae6fd;
  --accent-soft: rgba(125, 211, 252, 0.18);
  --gold-line: linear-gradient(115deg, #e0f2fe, #7dd3fc 40%, #38bdf8);
  --mesh-a: rgba(56, 189, 248, 0.3);
  --mesh-b: rgba(99, 102, 241, 0.22);
  --mesh-c: rgba(15, 40, 80, 0.55);
  --blob-1: rgba(125, 211, 252, 0.42);
  --blob-2: rgba(129, 140, 248, 0.2);
  --blob-3: rgba(34, 211, 238, 0.14);
  --header-tint: rgba(6, 10, 20, 0.9);
  --btn-shadow: rgba(125, 211, 252, 0.28);
}

body[data-theme="obsidian"] {
  --bg: #070708;
  --bg-elevated: #101018;
  --surface: #161620;
  --border: rgba(216, 214, 255, 0.12);
  --text: #f5f3ff;
  --text-muted: rgba(221, 214, 254, 0.55);
  --accent: #a78bfa;
  --accent-2: #ddd6fe;
  --accent-soft: rgba(167, 139, 250, 0.2);
  --gold-line: linear-gradient(115deg, #ede9fe, #a78bfa 42%, #818cf8);
  --mesh-a: rgba(129, 140, 248, 0.28);
  --mesh-b: rgba(76, 29, 149, 0.35);
  --mesh-c: rgba(20, 15, 40, 0.65);
  --blob-1: rgba(167, 139, 250, 0.4);
  --blob-2: rgba(236, 72, 153, 0.12);
  --blob-3: rgba(56, 189, 248, 0.1);
  --header-tint: rgba(7, 7, 8, 0.92);
  --btn-shadow: rgba(167, 139, 250, 0.3);
}

/* Shoelace Web Components — align with theme tokens */
body {
  --sl-font-sans: var(--font-ui);
  --sl-font-size-medium: 0.95rem;
  --sl-border-radius-medium: var(--radius-sm);
  --sl-input-border-color: var(--border);
  --sl-input-background-color: var(--surface);
  --sl-input-color: var(--text);
  --sl-input-placeholder-color: var(--text-muted);
  --sl-input-filled-background-color: var(--surface);
  --sl-input-filled-color: var(--text);
  --sl-color-primary-600: var(--accent);
  --sl-color-primary-500: var(--accent-2);
  --sl-color-primary-700: color-mix(in srgb, var(--accent) 72%, #0a0806);
  --sl-focus-ring: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .bg-scene,
  .bg-scene__mesh,
  .bg-scene__blobs .blob,
  .bg-scene__shimmer,
  .aurora-band,
  .marquee__track,
  .hero-card--small {
    animation: none !important;
  }
  .bg-canvas {
    opacity: 0 !important;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
  .panel {
    filter: none !important;
  }
  .panel.is-active,
  .panel.is-active * {
    animation: none !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.6s var(--ease-soft), color 0.45s var(--ease-soft);
}

body.lang-zh {
  font-family: var(--font-zh);
}

body.lang-zh .hero-title,
body.lang-zh .panel-head h2,
body.lang-zh .logo-en {
  font-family: var(--font-zh);
}

/* English / international typography — editorial, airy */
body.lang-en {
  letter-spacing: 0.01em;
  font-weight: 400;
}

body.lang-en .nav-link {
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 500;
}

body.lang-en .hero-title {
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* Arabic RTL Support */
body.lang-ar {
  font-family: "Noto Sans Arabic", "Noto Sans SC", "Segoe UI", sans-serif;
  direction: rtl;
  text-align: right;
}

body.lang-ar .hero-title,
body.lang-ar .panel-head h2 {
  text-align: right;
}

body.lang-ar .hero-lead,
body.lang-ar .panel-desc {
  text-align: right;
}

body.lang-ar .nav {
  direction: rtl;
}

body.lang-ar .hero-title-line--cert {
  letter-spacing: 0.02em;
}

body.lang-en .hero-title-line--accent {
  letter-spacing: 0.01em;
}

body.lang-en .eyebrow {
  letter-spacing: 0.24em;
}

body.lang-en .logo-en {
  letter-spacing: 0.14em;
  font-size: 1.05rem;
  font-weight: 500;
}

body.lang-en .panel-head h2 {
  font-weight: 400;
  letter-spacing: 0.03em;
}

body.lang-en .global-strip__inner {
  letter-spacing: 0.06em;
}

/* Living background */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-scene__wash {
  position: absolute;
  inset: -28%;
  background: radial-gradient(ellipse 85% 65% at 18% 22%, var(--mesh-a), transparent 52%),
    radial-gradient(ellipse 75% 55% at 88% 12%, var(--mesh-b), transparent 48%),
    radial-gradient(ellipse 95% 85% at 48% 105%, var(--mesh-c), transparent 52%), var(--bg);
  animation: washDrift 12s ease-in-out infinite alternate;
}

@keyframes washDrift {
  0% {
    transform: translate3d(-4%, -2%, 0) scale(1) rotate(0deg);
  }
  100% {
    transform: translate3d(4%, 3%, 0) scale(1.09) rotate(1.5deg);
  }
}

.bg-scene__mesh {
  position: absolute;
  inset: -45%;
  background: conic-gradient(from 120deg at 50% 50%, transparent, var(--accent-soft), transparent 40%, transparent 60%, rgba(255, 255, 255, 0.07), transparent 85%);
  opacity: 0.78;
  mix-blend-mode: soft-light;
  animation: meshSpin 26s linear infinite;
}

@keyframes meshSpin {
  to {
    transform: rotate(360deg);
  }
}

/* Aurora ribbons — high-contrast motion */
.bg-scene__aurora {
  position: absolute;
  inset: -15% -20%;
  pointer-events: none;
  opacity: 0.92;
  mix-blend-mode: screen;
}

.aurora-band {
  position: absolute;
  width: 140%;
  height: 42%;
  left: -20%;
  border-radius: 50%;
  filter: blur(36px);
  opacity: 0.55;
}

.aurora-band--1 {
  top: -5%;
  background: linear-gradient(100deg, transparent, var(--accent), transparent);
  animation: auroraSweep 9s ease-in-out infinite alternate;
}

.aurora-band--2 {
  top: 38%;
  background: linear-gradient(95deg, transparent, var(--accent-2), transparent);
  animation: auroraSweep 11s ease-in-out infinite alternate-reverse;
  animation-delay: -2s;
  opacity: 0.4;
}

.aurora-band--3 {
  bottom: -8%;
  height: 38%;
  background: linear-gradient(110deg, transparent, color-mix(in srgb, var(--accent) 40%, var(--blob-2)), transparent);
  animation: auroraSweep 13s ease-in-out infinite alternate;
  animation-delay: -4s;
  opacity: 0.35;
}

@keyframes auroraSweep {
  0% {
    transform: translate3d(-8%, 0, 0) rotate(-2deg) scaleX(1);
  }
  100% {
    transform: translate3d(10%, 4%, 0) rotate(3deg) scaleX(1.08);
  }
}

.bg-scene__blobs {
  position: absolute;
  inset: 0;
  filter: blur(52px);
  opacity: 1;
}

.blob {
  position: absolute;
  border-radius: 50%;
  animation: blobFloat 9s ease-in-out infinite;
}

.blob--a {
  width: min(52vw, 520px);
  height: min(52vw, 520px);
  left: -12%;
  top: 18%;
  background: var(--blob-1);
  animation-delay: 0s;
}

.blob--b {
  width: min(44vw, 420px);
  height: min(44vw, 420px);
  right: -8%;
  top: 8%;
  background: var(--blob-2);
  animation-delay: -4s;
}

.blob--c {
  width: min(60vw, 600px);
  height: min(38vw, 420px);
  left: 22%;
  bottom: -18%;
  background: var(--blob-3);
  animation-delay: -7s;
}

.blob--d {
  width: min(36vw, 340px);
  height: min(36vw, 340px);
  right: 18%;
  bottom: 12%;
  background: color-mix(in srgb, var(--accent) 55%, var(--blob-2));
  animation-delay: -2s;
  opacity: 0.85;
}

@keyframes blobFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  33% {
    transform: translate3d(6%, -7%, 0) scale(1.08);
  }
  66% {
    transform: translate3d(-7%, 6%, 0) scale(0.92);
  }
}

.bg-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.72;
  mix-blend-mode: screen;
}

.bg-scene__shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 0%,
    rgba(255, 255, 255, 0.07) 44%,
    rgba(255, 255, 255, 0.16) 50%,
    rgba(255, 255, 255, 0.07) 56%,
    transparent 100%
  );
  background-size: 240% 100%;
  animation: shimmerMove 6s ease-in-out infinite;
  mix-blend-mode: overlay;
  opacity: 0.88;
}

@keyframes shimmerMove {
  0% {
    background-position: 130% 0;
  }
  100% {
    background-position: -55% 0;
  }
}

.bg-scene__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 75% 70% at 50% 45%, transparent 0%, color-mix(in srgb, var(--bg) 55%, transparent) 88%, var(--bg) 100%);
  pointer-events: none;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 48px);
  background: linear-gradient(to bottom, var(--header-tint), color-mix(in srgb, var(--header-tint) 55%, transparent) 65%, transparent);
  backdrop-filter: blur(14px) saturate(1.15);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-soft), background 0.5s var(--ease-soft);
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  padding: 0;
}

.logo-mark {
  font-size: 1.25rem;
  color: var(--accent);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-en {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.logo-zh {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

.nav {
  display: flex;
  gap: 6px;
}

.nav-link {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
}

.nav-link:hover {
  color: var(--text);
}

.nav-link.active {
  color: var(--bg);
  background: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-picker {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.theme-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--bg) 40%, transparent);
  background: var(--dot);
  padding: 0;
  cursor: pointer;
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent);
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-soft);
}

.theme-dot:hover {
  transform: scale(1.12);
}

.theme-dot.is-active {
  box-shadow: 0 0 0 3px var(--accent-soft), 0 2px 10px color-mix(in srgb, var(--accent) 35%, transparent);
}

@media (max-width: 1100px) {
  .theme-picker {
    position: fixed;
    top: calc(var(--header-h) + var(--global-strip-h) + 10px);
    right: 14px;
    z-index: 120;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
  }
}

.lang-select-wrap {
  position: relative;
  flex-shrink: 0;
  display: inline-flex;
  align-items: stretch;
  border-radius: 999px;
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 55%, transparent),
    color-mix(in srgb, var(--accent-2) 35%, var(--border)),
    color-mix(in srgb, var(--accent) 40%, transparent)
  );
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--border) 80%, transparent),
    0 6px 20px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 color-mix(in srgb, #fff 8%, transparent);
  transition: box-shadow 0.35s var(--ease-soft), transform 0.35s var(--ease-out);
}

.lang-select-wrap:hover {
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 35%, var(--border)),
    0 10px 28px rgba(0, 0, 0, 0.32),
    0 0 24px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 color-mix(in srgb, #fff 10%, transparent);
  transform: translateY(-1px);
}

.lang-select-wrap:focus-within {
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent),
    0 8px 26px rgba(0, 0, 0, 0.3),
    0 0 0 4px var(--accent-soft);
}

.lang-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 13px;
  width: 6px;
  height: 6px;
  margin-top: -4px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  pointer-events: none;
  opacity: 0.9;
}

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

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  min-width: 8.25rem;
  padding: 9px 2.35rem 9px 14px;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  cursor: pointer;
  border: none;
  border-radius: 999px;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--surface) 96%, var(--accent-soft)) 0%,
    color-mix(in srgb, var(--bg-elevated) 92%, transparent) 100%
  );
  transition: color 0.25s var(--ease-soft), background 0.25s var(--ease-soft);
}

body.lang-zh .lang-select {
  letter-spacing: 0.04em;
  text-transform: none;
  font-weight: 500;
  font-size: 0.82rem;
}

body.lang-ar .lang-select {
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
  font-size: 0.8rem;
}

.lang-select:hover {
  color: var(--accent-2);
}

.lang-select:focus {
  outline: none;
}

.lang-select option {
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--bg);
  background: var(--text);
  padding: 8px;
}

body.lang-zh .lang-select option {
  letter-spacing: 0.02em;
}

body.lang-ar .lang-select option {
  letter-spacing: 0;
}

/* Global B2B strip — under fixed header */
.global-strip {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 99;
  min-height: var(--global-strip-h);
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: 7px;
  box-sizing: border-box;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--header-tint) 78%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.global-strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 12px;
  max-width: min(1040px, 100%);
  padding: 0 clamp(16px, 4vw, 40px);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text-muted) 92%, var(--accent));
  white-space: normal;
  text-align: center;
  line-height: 1.45;
}

.global-strip__inner::-webkit-scrollbar {
  display: none;
}

.global-strip__sep {
  opacity: 0.35;
  flex-shrink: 0;
}

.global-strip__item {
  flex-shrink: 1;
  max-width: 100%;
}

body.lang-zh .global-strip__inner {
  text-transform: none;
  font-size: 0.68rem;
  letter-spacing: 0.02em;
}

body.lang-ar .global-strip__inner {
  text-transform: none;
  font-size: 0.66rem;
  letter-spacing: 0;
}

.main {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-h) + var(--global-strip-h) + 10px);
  min-height: 100vh;
}

.panel {
  display: none;
  padding: clamp(32px, 5vw, 72px) clamp(20px, 4vw, 48px) clamp(48px, 8vw, 96px);
  opacity: 0;
  transform: translateY(28px) scale(0.97);
  filter: blur(12px);
  will-change: opacity, transform, filter;
}

.panel.is-active {
  display: block;
  animation: panelIn var(--dur) var(--ease-out) forwards;
}

.panel.is-leaving {
  display: block;
  animation: panelOut calc(var(--dur) * 0.82) var(--ease-soft) forwards;
}

.panel.is-active .hero-grid {
  animation: contentRise 0.68s var(--ease-out) both;
}

.panel.is-active .home-rich__inner {
  animation: contentRise 0.68s var(--ease-out) 0.08s both;
}

.panel.is-active .marquee-wrap {
  animation: revealSoft 0.75s var(--ease-out) 0.22s both;
}

.panel.is-active .panel-inner > * {
  animation: revealUp 0.58s var(--ease-out) both;
}

.panel.is-active .panel-inner > *:nth-child(1) {
  animation-delay: 0.05s;
}
.panel.is-active .panel-inner > *:nth-child(2) {
  animation-delay: 0.11s;
}
.panel.is-active .panel-inner > *:nth-child(3) {
  animation-delay: 0.17s;
}
.panel.is-active .panel-inner > *:nth-child(4) {
  animation-delay: 0.23s;
}
.panel.is-active .panel-inner > *:nth-child(5) {
  animation-delay: 0.29s;
}
.panel.is-active .panel-inner > *:nth-child(6) {
  animation-delay: 0.35s;
}
.panel.is-active .panel-inner > *:nth-child(7) {
  animation-delay: 0.41s;
}
.panel.is-active .panel-inner > *:nth-child(8) {
  animation-delay: 0.47s;
}
.panel.is-active .panel-inner > *:nth-child(9) {
  animation-delay: 0.53s;
}
.panel.is-active .panel-inner > *:nth-child(10) {
  animation-delay: 0.59s;
}

.panel.is-active .home-rich__inner.panel-inner > .feature-deck,
.panel.is-active .panel-inner > .heritage-grid,
.panel.is-active .panel-inner > .gallery-scroll,
.panel.is-active .panel-inner > .contact-stats,
.panel.is-active .panel-inner > .cert-main,
.panel.is-active .panel-inner > .park-content,
.panel.is-active .panel-inner > .about-overview {
  animation: none;
}

.panel.is-active .cert-main > * {
  animation: revealUp 0.55s var(--ease-out) both;
}
.panel.is-active .cert-main > *:nth-child(1) {
  animation-delay: 0.08s;
}
.panel.is-active .cert-main > *:nth-child(2) {
  animation-delay: 0.16s;
}
.panel.is-active .cert-main > *:nth-child(3) {
  animation-delay: 0.24s;
}

.panel.is-active .hero-grid .hero-copy > * {
  animation: fadeSlide 0.55s var(--ease-out) both;
}

.panel.is-active .hero-grid .hero-copy > *:nth-child(1) {
  animation-delay: 0.04s;
}
.panel.is-active .hero-grid .hero-copy > *:nth-child(2) {
  animation-delay: 0.1s;
}
.panel.is-active .hero-grid .hero-copy > *:nth-child(3) {
  animation-delay: 0.16s;
}
.panel.is-active .hero-grid .hero-copy > *:nth-child(4) {
  animation-delay: 0.22s;
}
.panel.is-active .hero-grid .hero-copy > *:nth-child(5) {
  animation-delay: 0.28s;
}
.panel.is-active .hero-grid .hero-copy > *:nth-child(6) {
  animation-delay: 0.34s;
}

.panel.is-active .hero-visual {
  animation: revealScale 0.75s var(--ease-out) 0.12s both;
}

.panel.is-active .feature-deck .feature-card {
  animation: revealUp 0.52s var(--ease-out) both;
}
.panel.is-active .feature-deck .feature-card:nth-child(1) {
  animation-delay: 0.2s;
}
.panel.is-active .feature-deck .feature-card:nth-child(2) {
  animation-delay: 0.28s;
}
.panel.is-active .feature-deck .feature-card:nth-child(3) {
  animation-delay: 0.36s;
}

.panel.is-active .about-overview > * {
  animation: revealUp 0.52s var(--ease-out) both;
}
.panel.is-active .about-overview > *:nth-child(1) {
  animation-delay: 0.14s;
}
.panel.is-active .about-overview > *:nth-child(2) {
  animation-delay: 0.22s;
}

.panel.is-active .about-prestige__item {
  animation: revealUp 0.52s var(--ease-out) both;
}

.panel.is-active .about-prestige__item:nth-child(1) {
  animation-delay: 0.1s;
}
.panel.is-active .about-prestige__item:nth-child(2) {
  animation-delay: 0.14s;
}
.panel.is-active .about-prestige__item:nth-child(3) {
  animation-delay: 0.18s;
}

.panel.is-active .panel-inner--about > .about-leadership {
  animation: none;
}

.panel.is-active .about-leadership__card {
  animation: revealUp 0.52s var(--ease-out) both;
}

.panel.is-active .about-leadership__card:nth-child(1) {
  animation-delay: 0.16s;
}
.panel.is-active .about-leadership__card:nth-child(2) {
  animation-delay: 0.22s;
}

.panel.is-active .heritage-grid .heritage-card {
  animation: revealUp 0.5s var(--ease-out) both;
}
.panel.is-active .heritage-grid .heritage-card:nth-child(1) {
  animation-delay: 0.08s;
}
.panel.is-active .heritage-grid .heritage-card:nth-child(2) {
  animation-delay: 0.14s;
}
.panel.is-active .heritage-grid .heritage-card:nth-child(3) {
  animation-delay: 0.2s;
}
.panel.is-active .heritage-grid .heritage-card:nth-child(4) {
  animation-delay: 0.26s;
}

.panel.is-active .park-content > * {
  animation: revealUp 0.55s var(--ease-out) both;
}
.panel.is-active .park-content > *:nth-child(1) {
  animation-delay: 0.12s;
}
.panel.is-active .park-content > *:nth-child(2) {
  animation-delay: 0.18s;
}
.panel.is-active .park-content > *:nth-child(3) {
  animation-delay: 0.24s;
}

.panel.is-active .gallery-scroll .gal-card {
  animation: revealUp 0.52s var(--ease-out) both;
}
.panel.is-active .gallery-scroll .gal-card:nth-child(1) {
  animation-delay: 0.08s;
}
.panel.is-active .gallery-scroll .gal-card:nth-child(2) {
  animation-delay: 0.14s;
}
.panel.is-active .gallery-scroll .gal-card:nth-child(3) {
  animation-delay: 0.2s;
}
.panel.is-active .gallery-scroll .gal-card:nth-child(4) {
  animation-delay: 0.26s;
}

.panel.is-active .contact-stats .contact-stat {
  animation: revealUp 0.48s var(--ease-out) both;
}
.panel.is-active .contact-stats .contact-stat:nth-child(1) {
  animation-delay: 0.1s;
}
.panel.is-active .contact-stats .contact-stat:nth-child(2) {
  animation-delay: 0.16s;
}
.panel.is-active .contact-stats .contact-stat:nth-child(3) {
  animation-delay: 0.22s;
}

@keyframes contentRise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealSoft {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealScale {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(14px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(32px) scale(0.96);
    filter: blur(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@keyframes panelOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
  to {
    opacity: 0;
    transform: translateY(-18px) scale(0.985);
    filter: blur(10px);
  }
}

.panel-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.panel-inner--wide {
  max-width: 1280px;
}

.panel-inner--park {
  max-width: min(1180px, 100%);
}

.panel-inner--about {
  max-width: min(1180px, 100%);
}

/* —— About Us（关于我们） —— */
.panel--about {
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-elevated) 88%, transparent) 0%, var(--bg) 45%);
}

.about-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
}

@media (max-width: 980px) {
  .about-overview {
    grid-template-columns: 1fr;
  }
}

.about-overview__main {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.about-overview__side {
  display: grid;
  gap: clamp(0.9rem, 2vw, 1.2rem);
}

.panel-head.about-head {
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
  padding-bottom: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}

.about-head__lede {
  margin-top: 0.35rem;
  max-width: min(62ch, 100%);
  font-size: clamp(0.95rem, 1.85vw, 1.06rem);
  line-height: 1.65;
  text-wrap: balance;
  color: var(--text-muted);
}

body.lang-en .about-head__lede {
  line-height: 1.62;
  letter-spacing: 0.01em;
}

body.lang-ar .about-head__lede {
  line-height: 1.8;
  letter-spacing: 0;
}

/* 资质条 — 首屏强化地位与主体 */
.about-prestige {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 16px);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.about-overview__side .about-prestige {
  grid-template-columns: 1fr;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .about-prestige {
    grid-template-columns: 1fr;
  }
}

.about-prestige__item {
  min-width: 0;
  padding: clamp(14px, 2.5vw, 18px) clamp(16px, 2.8vw, 20px);
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--surface) 92%, var(--bg)) 0%,
    color-mix(in srgb, var(--accent-soft) 12%, var(--surface)) 100%
  );
  box-shadow: 0 12px 40px color-mix(in srgb, #000 35%, transparent);
}

.about-prestige__label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

body.lang-zh .about-prestige__label,
body.lang-ar .about-prestige__label {
  letter-spacing: 0.08em;
  text-transform: none;
  font-size: 0.78rem;
}

.about-prestige__value {
  display: block;
  font-size: clamp(0.9rem, 1.65vw, 0.98rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
  text-wrap: balance;
}

body.lang-en .about-prestige__value {
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.5;
}

/* 双卡片：平台身份 + 人物介绍 */
.about-leadership {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 24px);
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

@media (max-width: 900px) {
  .about-leadership {
    grid-template-columns: 1fr;
  }
}

.about-leadership__card {
  position: relative;
  margin: 0;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, var(--bg-elevated));
  overflow: hidden;
}

.about-leadership__card::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 3px;
  background: var(--gold-line);
  opacity: 0.9;
}

.about-leadership__card--director {
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--surface) 75%, transparent) 0%,
    color-mix(in srgb, var(--accent-soft) 15%, var(--surface)) 100%
  );
}

.about-leadership__eyebrow {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 10px;
}

body.lang-zh .about-leadership__eyebrow,
body.lang-ar .about-leadership__eyebrow {
  letter-spacing: 0.06em;
  text-transform: none;
  font-size: 0.8rem;
}

.about-leadership__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
  text-wrap: balance;
}

.about-leadership__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.65rem);
  font-weight: 600;
  color: var(--accent-2);
  letter-spacing: 0.02em;
}

.about-leadership__role {
  margin: 0 0 14px;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
}

body.lang-zh .about-leadership__role,
body.lang-ar .about-leadership__role {
  letter-spacing: 0.04em;
}

.about-leadership__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--text-muted);
  text-wrap: pretty;
}

body.lang-en .about-leadership__text {
  line-height: 1.68;
}

body.lang-ar .about-leadership__text {
  line-height: 1.85;
}

.about-prose {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.5vw, 1.35rem);
}

.about-prose p {
  margin: 0;
  font-size: clamp(0.98rem, 1.9vw, 1.06rem);
  line-height: 1.78;
  color: var(--text-muted);
  text-wrap: pretty;
  max-width: min(65ch, 100%);
}

body.lang-en .about-prose p {
  line-height: 1.72;
  color: color-mix(in srgb, var(--text-muted) 96%, var(--text));
}

body.lang-ar .about-prose p {
  line-height: 1.88;
}

.about-side {
  margin: 0;
  padding: clamp(1.2rem, 3vw, 1.5rem);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
}

.about-side::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-start-start-radius: 4px;
  border-end-start-radius: 4px;
  background: var(--gold-line);
  opacity: 0.85;
}

.about-side__title {
  margin: 0 0 1rem;
  padding-inline-start: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

body.lang-zh .about-side__title,
body.lang-en .about-side__title,
body.lang-ar .about-side__title {
  letter-spacing: 0.06em;
  text-transform: none;
  font-size: 1.02rem;
  color: var(--accent-2);
}

body.lang-en .about-side__title {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.advantages-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 0.65rem;
}

@media (min-width: 900px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
}

.adv-item {
  display: flex;
  align-items: center;
  min-height: 2.65rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--text);
  background: color-mix(in srgb, var(--accent-soft) 18%, var(--bg-elevated));
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  border-radius: var(--radius-sm);
  text-wrap: balance;
  transition: border-color 0.25s var(--ease-soft), background 0.25s var(--ease-soft);
}

.adv-item::before {
  content: "✓";
  flex-shrink: 0;
  margin-inline-end: 0.5rem;
  font-size: 0.72rem;
  color: var(--accent);
  opacity: 0.9;
}

body.lang-ar .adv-item {
  flex-direction: row-reverse;
  align-items: flex-start;
  text-align: right;
  min-height: unset;
  padding: 0.55rem 0.65rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
  word-break: break-word;
}

body.lang-ar .adv-item::before {
  margin-inline-end: 0;
  margin-inline-start: 0.5rem;
  margin-top: 0.2em;
}

body.lang-en .adv-item {
  align-items: flex-start;
  min-height: unset;
  padding: 0.55rem 0.7rem;
  line-height: 1.4;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

body.lang-en .adv-item::before {
  margin-top: 0.15em;
}

.adv-item:hover {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 28%, var(--surface));
}

.panel-head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.panel-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 500;
  margin: 0 0 12px;
  letter-spacing: 0.02em;
  background: var(--gold-line);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.panel-desc {
  margin: 0;
  max-width: 52ch;
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* Home: story + marquee */
.panel--home {
  padding-bottom: clamp(24px, 4vw, 48px);
}

.home-rich {
  margin-top: clamp(40px, 7vw, 88px);
  padding: clamp(28px, 4vw, 48px) 0 0;
  border-top: 1px solid var(--border);
}

.home-rich__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 4vw, 40px);
}

.intro-block__title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  font-weight: 500;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
  color: var(--text);
}

.intro-block__text {
  display: grid;
  gap: 14px;
  max-width: 72ch;
}

.intro-block__text p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.65;
}

.feature-deck {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .feature-deck {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  position: relative;
  padding: 22px 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-soft), box-shadow 0.4s var(--ease-soft);
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: -40% 50% 50% -30%;
  background: radial-gradient(circle, var(--accent-soft), transparent 65%);
  opacity: 0.55;
  pointer-events: none;
  transition: transform 0.8s var(--ease-out);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.feature-card:hover::before {
  transform: translate3d(8%, 12%, 0) scale(1.08);
}

.feature-card__icon {
  display: block;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.marquee-wrap {
  margin-top: clamp(32px, 5vw, 56px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.marquee {
  padding: 14px 0;
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marqueeX 26s linear infinite;
}

.marquee__text {
  flex-shrink: 0;
  padding-right: 4rem;
  font-size: 0.82rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text-muted) 92%, var(--accent));
  white-space: nowrap;
}

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

/* Product hub ribbon */
.products-highlight {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.products-highlight--six {
  grid-template-columns: repeat(3, 1fr);
}

@media (min-width: 1100px) {
  .products-highlight--six {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ph-card__badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 40%, transparent);
}

@media (max-width: 860px) {
  .products-highlight {
    grid-template-columns: 1fr;
  }
}

.ph-card {
  padding: 22px 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 90%, transparent), color-mix(in srgb, var(--bg-elevated) 70%, transparent));
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-soft);
}

.ph-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.ph-card__title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.ph-card__body {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.products-note {
  margin: 0 0 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 75ch;
  line-height: 1.6;
}

/* Hero */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(32px, 6vw, 64px);
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none;
  }
  .main {
    padding-bottom: 88px;
  }
}

/* Mobile bottom navigation */
.mobile-bar {
  display: none;
}

@media (max-width: 960px) {
  .mobile-bar {
    display: flex;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 150;
    padding: 8px;
    gap: 6px;
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    border: 1px solid var(--border);
    border-radius: 18px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  }

  .mobile-bar__btn {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 12px 8px;
    border-radius: 12px;
    cursor: pointer;
    transition: color var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
  }

  .mobile-bar__btn.active {
    color: var(--bg);
    background: var(--accent);
  }
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 16px;
}

.eyebrow--with-badge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  letter-spacing: normal;
  text-transform: none;
}

.eyebrow--with-badge .eyebrow__text {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

body.lang-zh .eyebrow--with-badge .eyebrow__text,
body.lang-ar .eyebrow--with-badge .eyebrow__text {
  letter-spacing: 0.1em;
  text-transform: none;
}

.eyebrow__badge::part(base) {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 32%, transparent);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 7vw, 4.75rem);
  font-weight: 500;
  line-height: 1.05;
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}

.hero-title-line {
  display: block;
}

.hero-title-line--accent {
  font-style: italic;
  color: var(--accent);
}

/* 全新首页标题排版 - 更具仪式感与高端国风 */
/* 严格按照文档首屏要求 - 三行标题排版 */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7.5vw, 5.2rem);
  font-weight: 600;
  line-height: 1.05;
  margin: 0 0 24px;
  letter-spacing: -0.015em;
}

.hero-title-line {
  display: block;
}

.hero-title-line--accent {
  color: var(--accent);
  font-style: italic;
  font-weight: 500;
}

.hero-title-line--cert {
  font-size: 0.72em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 500;
  margin-top: 12px;
  opacity: 0.9;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 46ch;
  line-height: 1.65;
  margin-bottom: 32px;
}

@media (max-width: 640px) {
  .hero-title--reborn {
    gap: 4px;
  }
  .hero-title-main {
    font-size: clamp(3.1rem, 11vw, 4.8rem);
  }
  .hero-title-sub {
    font-size: clamp(1.65rem, 6.5vw, 2.2rem);
  }
  .hero-tagline {
    font-size: 0.95rem;
    letter-spacing: 0.18em;
  }
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 36ch;
  margin: 0 0 28px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-soft), background var(--dur-fast) var(--ease-soft);
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--gold-line);
  color: var(--bg);
  box-shadow: 0 14px 36px var(--btn-shadow);
}

.btn--primary:hover {
  box-shadow: 0 18px 44px color-mix(in srgb, var(--btn-shadow) 120%, transparent);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  color: var(--accent);
}

.btn--block {
  width: 100%;
}

.hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: clamp(20px, 4vw, 40px);
  flex-wrap: wrap;
}

.hero-stats li {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-stats strong {
  display: block;
  font-size: 1.5rem;
  font-family: var(--font-display);
  color: var(--text);
  font-weight: 600;
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border) 85%, var(--accent));
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-soft);
}

.hero-card--main {
  position: relative;
  z-index: 2;
}

.hero-card--main img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5/6;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 1.2s var(--ease-out);
}

.hero-card--main:hover img {
  transform: scale(1.06);
}

.hero-card-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(to top, color-mix(in srgb, var(--bg) 92%, transparent), transparent);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-card--small {
  position: absolute;
  width: min(42%, 220px);
  bottom: -6%;
  right: -4%;
  z-index: 3;
  animation: floatY 6s ease-in-out infinite;
}

@keyframes floatY {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero-card--small img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.products-visual-lead {
  margin: 0 0 20px;
  font-size: 0.98rem;
  color: var(--text-muted);
  max-width: 70ch;
  line-height: 1.6;
}

.kw-section-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin: clamp(28px, 4vw, 44px) 0 18px;
  color: var(--text);
  letter-spacing: 0.02em;
}

/* 阿语产品词库：单列展示 */
body.lang-ar #panel-products .kw-columns {
  grid-template-columns: 1fr;
}

body.lang-ar #panel-products .kw-columns > .kw-col:last-child {
  display: none;
}

.combo-body--ar {
  display: block;
}

.combo-body--ar .kw-col {
  max-width: 100%;
}

.product-catalog {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 8px;
}

@media (max-width: 640px) {
  .product-catalog {
    grid-template-columns: 1fr;
  }
}

.pvc-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border) 80%, var(--accent));
  background: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.035);
  transition: transform 0.35s var(--ease-out), border-color 0.3s var(--ease-soft), box-shadow 0.35s var(--ease-soft);
}

.pvc-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.38);
}

.pvc-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.pvc-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--bg) 55%, transparent), transparent 55%);
  pointer-events: none;
}

.pvc-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.85s var(--ease-out);
}

.pvc-card:hover .pvc-card__media img {
  transform: scale(1.06);
}

.pvc-card__body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}

.pvc-card__title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.pvc-card__desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
}

.pvc-card__specs {
  margin: 0;
  padding: 0 0 0 1.1em;
  font-size: 0.82rem;
  color: color-mix(in srgb, var(--text-muted) 95%, var(--accent));
  line-height: 1.5;
}

.pvc-card__specs li {
  margin-bottom: 4px;
}

.pvc-card__btn {
  margin-top: 8px;
  align-self: flex-start;
  width: 100%;
  justify-content: center;
}

/* Keywords */
.kw-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}

@media (max-width: 860px) {
  .kw-layout {
    grid-template-columns: 1fr;
  }
  .kw-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    position: static !important;
  }
}

.kw-toc {
  position: sticky;
  top: calc(var(--header-h) + var(--global-strip-h) + 16px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.toc-item {
  text-align: left;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}

.toc-item:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.toc-item.is-active {
  color: var(--accent);
  border-color: var(--accent-soft);
  background: var(--accent-soft);
}

.kw-content {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
  min-height: 420px;
  scroll-margin-top: calc(var(--header-h) + var(--global-strip-h) + 32px);
}

.kw-block {
  animation: fadeUp 0.38s var(--ease-out);
}

.kw-block[hidden] {
  display: none !important;
}

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

.kw-block h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
  margin: 0 0 20px;
  color: var(--text);
}

.kw-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 640px) {
  .kw-columns {
    grid-template-columns: 1fr;
  }
}

.kw-col h4 {
  margin: 0 0 12px;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.tag-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li {
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: border-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft), transform var(--dur-fast) var(--ease-out);
}

.tag-list li:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  color: var(--text);
  transform: translateY(-2px);
}

.tag-list--en li {
  font-size: 0.82rem;
}

/* Combo accordion */
.combo-acc {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.combo-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
}

.combo-panel summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  font-weight: 500;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--dur-fast) var(--ease-soft);
}

.combo-panel summary::-webkit-details-marker {
  display: none;
}

.combo-panel summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.1rem;
  transition: transform var(--dur-fast) var(--ease-out);
}

.combo-panel[open] summary::after {
  transform: rotate(45deg);
}

.combo-panel summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.combo-body {
  padding: 0 18px 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .combo-body {
    grid-template-columns: 1fr;
  }
}

/* Gallery */
.gallery-scroll {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.gal-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-soft);
}

.gal-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.gal-card img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.9s var(--ease-out);
}

.gal-card:hover img {
  transform: scale(1.05);
}

.gal-card-body {
  padding: 18px 20px 22px;
}

.gal-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0 0 8px;
  font-weight: 600;
}

.gal-card-body p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Contact */
.panel-inner--contact-wide {
  max-width: 1180px;
}

.contact-page-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.contact-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: clamp(28px, 4vw, 40px);
}

@media (max-width: 720px) {
  .contact-stats {
    grid-template-columns: 1fr;
  }
}

.contact-stat {
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 88%, transparent), color-mix(in srgb, var(--bg-elevated) 70%, transparent));
  text-align: center;
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-soft);
}

.contact-stat:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.contact-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 6px;
}

.contact-stat span {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.contact-main {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 1.15fr;
  gap: clamp(24px, 3vw, 36px);
  align-items: start;
}

@media (max-width: 960px) {
  .contact-main {
    grid-template-columns: 1fr;
  }
}

.contact-aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.contact-card__title {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.contact-card__body {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.contact-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-channels li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.contact-channels li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.ch-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.ch-val {
  font-size: 0.95rem;
  color: var(--text);
  word-break: break-word;
}

a.ch-val {
  color: var(--accent-2);
  text-decoration: none;
}

a.ch-val:hover {
  text-decoration: underline;
}

.faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  background: var(--surface);
}

.faq-item summary {
  cursor: pointer;
  padding: 12px 4px;
  font-weight: 500;
  color: var(--text);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0 4px 14px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.contact-faq__details {
  display: block;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
}

.contact-faq__details::part(header) {
  padding: 12px 14px;
  font-weight: 500;
  color: var(--text);
}

.contact-faq__details::part(content) {
  border-top: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  padding: 0 2px 4px;
}

.contact-faq__details p {
  margin: 10px 14px 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.contact-map-placeholder {
  height: 140px;
  border-radius: var(--radius-sm);
  border: 1px dashed color-mix(in srgb, var(--accent) 40%, var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
}

.contact-form-wrap {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 40%, var(--bg-elevated));
}

.contact-form__heading {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.contact-form__sub {
  margin: 0 0 16px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 52ch;
}

.contact-list {
  margin: 0 0 20px;
  padding-left: 1.1em;
  color: var(--text-muted);
}

.contact-list--compact {
  font-size: 0.88rem;
}

.contact-list li {
  margin-bottom: 6px;
}

.contact-trust-bar {
  margin-top: clamp(28px, 4vw, 40px);
  padding: 18px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 35%, transparent);
}

.trust-dot {
  opacity: 0.35;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

@media (max-width: 720px) {
  .contact-form {
    grid-template-columns: 1fr;
  }
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.contact-form label.full {
  grid-column: 1 / -1;
}

.contact-form input,
.contact-form textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--dur-fast) var(--ease-soft);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}

.contact-form--sl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: start;
}

.contact-form--sl sl-input,
.contact-form--sl sl-textarea {
  width: 100%;
}

.contact-form--sl .contact-form__field-msg {
  grid-column: 1 / -1;
}

.contact-form--sl .contact-form__submit {
  grid-column: 1 / -1;
  width: 100%;
  margin-top: 2px;
}

.contact-form--sl .contact-form__submit::part(base) {
  width: 100%;
  justify-content: center;
  font-family: var(--font-ui);
  letter-spacing: 0.1em;
  min-height: 48px;
}

.contact-form--sl .form-note {
  grid-column: 1 / -1;
  margin: 4px 0 0;
}

@media (max-width: 720px) {
  .contact-form--sl {
    grid-template-columns: 1fr;
  }
}

.form-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4vw, 36px) clamp(20px, 4vw, 48px) max(44px, calc(28px + env(safe-area-inset-bottom, 0px)));
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  border-top: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  background: linear-gradient(to bottom, transparent, color-mix(in srgb, var(--bg-elevated) 35%, transparent));
}

.site-footer__inner {
  max-width: min(40rem, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.site-footer__primary {
  margin: 0;
  letter-spacing: 0.04em;
  line-height: 1.55;
  text-wrap: balance;
}

body.lang-en .site-footer__primary {
  letter-spacing: 0.06em;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.site-footer__secondary {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text-muted) 88%, var(--accent));
  line-height: 1.55;
  text-wrap: balance;
}

body.lang-zh .site-footer__secondary {
  text-transform: none;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 200;
  padding: 14px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.88rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-soft), transform var(--dur-fast) var(--ease-out);
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Improved Official "中国柞蚕" Logo Styles */
.logo-container {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Pure text logo - no icon as requested */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  gap: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.logo-en {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

.logo-zh {
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 1px;
  font-weight: 500;
}

.hero-seal-text {
  font-family: 'Noto Sans SC', system-ui;
  font-size: 68px;
  font-weight: 800;
  letter-spacing: 8px;
  color: var(--accent);
  -webkit-text-stroke: 2.5px #0c0b0a;
  line-height: 1;
  text-align: center;
  padding: 18px 32px;
  border: 5px double var(--accent);
  border-radius: 6px;
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  text-shadow: 0 6px 25px rgba(0, 0, 0, 0.5);
  box-shadow: 0 15px 35px rgba(212, 181, 106, 0.15);
}

.hero-seal-text:hover {
  transform: scale(1.015);
  letter-spacing: 9px;
  border-color: var(--accent-2);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  padding-top: 2px;
}

.logo-zh {
  font-size: 0.78rem;
  letter-spacing: 0.5px;
  color: var(--accent-2);
  font-weight: 500;
}

/* —— Certifications & authority (资质认证) —— */
.panel--cert {
  background: linear-gradient(165deg, color-mix(in srgb, var(--bg-elevated) 100%, transparent) 0%, var(--bg) 55%);
}

.panel--cert .panel-head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.panel--cert .panel-desc {
  max-width: min(58rem, 100%);
  text-wrap: balance;
}

.cert-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.25rem);
  align-items: start;
}

@media (min-width: 900px) {
  .cert-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cert-wall {
    grid-column: 1 / -1;
  }
}

.cert-wall > h3,
.export-section > h3,
.partners-section > h3 {
  font-family: var(--font-ui);
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  font-weight: 600;
  color: var(--accent-2);
  margin: 0 0 1rem;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

body.lang-en .cert-wall > h3,
body.lang-en .export-section > h3,
body.lang-en .partners-section > h3 {
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

body.lang-ar .cert-wall > h3,
body.lang-ar .export-section > h3,
body.lang-ar .partners-section > h3 {
  letter-spacing: 0;
  line-height: 1.5;
}

.cert-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: 0.85rem 1rem;
}

.cert-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.05rem 1.15rem;
  min-height: 100%;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s var(--ease-soft), box-shadow 0.3s var(--ease-out);
}

.cert-item:hover {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
  box-shadow: 0 12px 36px -18px color-mix(in srgb, var(--accent) 35%, transparent);
}

.cert-item strong {
  display: block;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--accent-2);
  line-height: 1.4;
  text-wrap: balance;
}

.cert-item span {
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--text-muted);
  text-wrap: pretty;
}

body.lang-en .cert-item strong {
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

body.lang-ar .cert-item {
  text-align: right;
}

.export-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.export-countries {
  margin: 0;
  padding: 1rem 1.15rem;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-wrap: balance;
}

.map-placeholder {
  border-radius: var(--radius-sm);
  border: 1px dashed color-mix(in srgb, var(--accent) 25%, var(--border));
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
}

.map-visual {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-muted);
  text-align: center;
  max-width: 36rem;
  text-wrap: balance;
}

.partners-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr));
  gap: 0.65rem;
}

.partner {
  padding: 0.75rem 0.95rem;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--text);
  background: color-mix(in srgb, var(--accent-soft) 22%, var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-wrap: pretty;
}

body.lang-en .partner {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

body.lang-ar .partner {
  text-align: right;
  line-height: 1.55;
}

/* Industrial Park 3.0 Styles - 柞蚕产业园说明3.0 专属设计 */
.panel--park {
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg) 100%);
}

.park-badge {
  display: inline-block;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #0c0b0a;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 18px 3px;
  border-radius: 9999px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

/* 产业园首屏：导语 + 指标分区 */
.park-top {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.75rem);
  margin: 0 0 clamp(2rem, 5vw, 3.25rem);
  padding-bottom: clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  align-items: start;
}

@media (min-width: 960px) {
  .park-top {
    grid-template-columns: minmax(0, 1.22fr) minmax(260px, 0.78fr);
    gap: clamp(2rem, 4vw, 3rem);
    align-items: stretch;
  }
}

.park-top__intro {
  margin: 0;
  padding: 0;
}

.park-top__intro h2 {
  margin: 0 0 0.85rem;
}

.park-top__lede {
  margin: 0;
  max-width: min(58ch, 100%);
  font-size: clamp(0.98rem, 1.9vw, 1.08rem);
  line-height: 1.72;
}

body.lang-ar .park-top__lede {
  line-height: 1.82;
}

.park-top .park-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
  align-content: start;
}

@media (max-width: 959px) {
  .park-top .park-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

.park-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.china-tussah-logo-large {
  filter: drop-shadow(0 25px 45px rgba(212, 181, 106, 0.35));
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.china-tussah-logo-large:hover {
  transform: scale(1.05) rotate(2deg);
}

.park-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.25rem;
}

.park-content {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.park-stat {
  background: color-mix(in srgb, var(--accent-soft), transparent 70%);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: all 0.3s var(--ease-soft);
}

.park-stat:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.park-top .park-stat {
  padding: 1.1rem 0.9rem;
  min-height: 5.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.stat-number {
  font-size: 2.1rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
  font-weight: 500;
  text-wrap: balance;
}

body.lang-ar .stat-label {
  line-height: 1.45;
  padding-inline: 0.15rem;
}

.park-content h3 {
  font-size: clamp(1.28rem, 2.8vw, 1.55rem);
  margin: 2rem 0 0.85rem;
  color: var(--accent-2);
  position: relative;
  padding-inline-start: 1.25rem;
  line-height: 1.35;
  text-wrap: balance;
}

.park-content h3::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.35em;
  width: 5px;
  height: 1.1em;
  background: var(--accent);
  border-radius: 3px;
}

body.lang-en .park-content h3 {
  letter-spacing: 0.02em;
}

.park-section-lead {
  margin: 0 0 1.75rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: min(72ch, 100%);
  text-wrap: pretty;
}

body.lang-en .park-section-lead {
  font-size: 1.02rem;
  line-height: 1.7;
}

body.lang-ar .park-section-lead {
  line-height: 1.85;
  letter-spacing: 0;
}

.park-upgrade-note {
  margin: 0 0 1.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 35%, transparent);
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text);
}

.strategic-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 0 0 1.75rem;
}

@media (min-width: 640px) {
  .strategic-pillars {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
  }
}

@media (min-width: 1100px) {
  .strategic-pillars {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }
}

.strategic-pillar {
  position: relative;
  padding: 1.35rem 1.25rem 1.35rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  transition: border-color 0.3s var(--ease-soft), transform 0.35s var(--ease-out);
}

.strategic-pillar:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  transform: translateY(-4px);
}

.strategic-pillar__num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.strategic-pillar__title {
  margin: 0 0 0.65rem;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--accent-2);
  line-height: 1.3;
}

.strategic-pillar__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-muted);
}

body.lang-ar .strategic-pillar {
  padding: 1.35rem 1.35rem 1.35rem 1.25rem;
  text-align: right;
}

.park-section--strategy {
  margin-bottom: 0.5rem;
}

.park-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.35rem;
  margin: 2rem 0 2.25rem;
  align-items: stretch;
}

.park-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  height: 100%;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.park-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px -15px rgba(212, 181, 106, 0.2);
}

.park-card h4 {
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.35;
  text-wrap: balance;
}

body.lang-ar .park-card h4 {
  text-align: right;
}

body.lang-en .park-card h4 {
  font-size: 1.08rem;
  letter-spacing: 0.02em;
}

.park-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.park-list li {
  position: relative;
  padding-inline-start: 1.4rem;
  margin-bottom: 0.65rem;
  text-wrap: pretty;
}

.park-list li::before {
  content: "◈";
  position: absolute;
  inset-inline-start: 0;
  top: 0.15em;
  color: var(--accent);
  font-size: 0.85rem;
}

body.lang-ar .park-list li {
  line-height: 1.8;
}

.upgrade-timeline {
  display: flex;
  gap: 2rem;
  margin: 2rem 0;
  padding: 1.5rem;
  background: color-mix(in srgb, var(--bg), transparent 40%);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
}

/* Keep 1.0 → 2.0 → 3.0 reading order consistent when page is RTL */
body.lang-ar .upgrade-timeline {
  direction: ltr;
}

body.lang-ar .timeline-content {
  direction: rtl;
  text-align: center;
}

.timeline-item {
  flex: 1;
  text-align: center;
  position: relative;
  padding-top: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.timeline-item:last-child::before {
  width: 50%;
}

.timeline-dot {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 22px;
  background: var(--bg-elevated);
  border: 3px solid var(--accent);
  border-radius: 50%;
  z-index: 1;
}

.timeline-item.active .timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(212, 181, 106, 0.25);
}

.timeline-content {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text);
}

.timeline-content strong {
  display: block;
  font-size: 1.35rem;
  color: var(--accent);
  margin-bottom: 4px;
}

.timeline-content > span {
  display: block;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.timeline-content .highlight {
  display: block;
  margin-top: 2px;
}

.highlight {
  color: var(--accent-2);
  font-weight: 600;
}

.park-vision {
  margin-top: 0.5rem;
  padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.25rem, 3vw, 2.5rem);
  background: linear-gradient(135deg, var(--surface), color-mix(in srgb, var(--accent-soft), transparent 75%));
  border-radius: var(--radius);
  border: 1px solid var(--accent-soft);
  text-align: center;
}

.park-vision h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.park-vision p {
  margin: 0 auto 0.25rem;
  max-width: min(52rem, 100%);
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  line-height: 1.75;
  color: var(--text-muted);
  text-wrap: pretty;
}

body.lang-ar .park-vision p {
  line-height: 1.85;
}

.highlight-box {
  background: rgba(212, 181, 106, 0.08);
  border-inline-start: 5px solid var(--accent);
  padding-block: 1.25rem;
  padding-inline: 1.5rem;
  margin: 1.25rem 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text);
  text-wrap: pretty;
}

body.lang-ar .highlight-box {
  line-height: 1.85;
  font-size: 1.02rem;
}

.highlight-box strong {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--accent-2);
}

.cta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1rem;
  margin-top: 1.5rem;
}

.panel--park .panel-desc {
  max-width: min(60rem, 100%);
  text-wrap: balance;
}

.panel--park .park-top__lede {
  max-width: min(58ch, 100%);
}

body.lang-en .panel--park .panel-desc,
body.lang-en .panel--park .park-top__lede {
  line-height: 1.65;
}

.btn--large {
  padding: 16px 42px;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

@media (max-width: 860px) {
  .upgrade-timeline {
    flex-direction: column;
    gap: 2rem;
  }
  .timeline-item::before {
    display: none;
  }
}