/* 上海芬齐艾吉特材料应用有限公司 — industrial / tech theme */
:root {
  --ink: #151a21;
  --ink-soft: #2a3340;
  --blue: #0b5cab;
  --blue-deep: #083d75;
  --blue-glow: rgba(11, 92, 171, 0.12);
  --silver: #c5ccd6;
  --silver-dark: #9aa3b0;
  --bg: #eef1f5;
  --bg-card: #ffffff;
  --line: #d7dde6;
  --text: #1f2933;
  --text-muted: #5c6773;
  --max: 1180px;
  --radius: 6px;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* Rasterized contact lines (footer vs light cards) */
.footer-contact-img {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.35rem;
}

.footer-contact-img img {
  width: auto;
  max-width: min(100%, 440px);
  height: auto;
  display: block;
  image-rendering: auto;
}

.contact-panel-img img {
  width: auto;
  max-width: 100%;
  height: auto;
}

/* Subtle iridescent frame on rasterized contact assets (respects reduced motion) */
.contact-info-shimmer {
  display: inline-block;
  max-width: 100%;
  vertical-align: middle;
  padding: 2px;
  border-radius: 11px;
  background: linear-gradient(
    125deg,
    rgba(11, 92, 171, 0.42),
    rgba(99, 102, 241, 0.34),
    rgba(14, 165, 233, 0.38),
    rgba(167, 139, 250, 0.32),
    rgba(6, 182, 212, 0.36),
    rgba(11, 92, 171, 0.42)
  );
  background-size: 280% 280%;
  animation: contact-shimmer-shift 18s ease-in-out infinite;
}

.contact-info-shimmer > img {
  border-radius: 9px;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.96);
}

.contact-info-shimmer--footer {
  padding: 2px;
  border-radius: 13px;
  background: linear-gradient(
    125deg,
    rgba(59, 130, 246, 0.55),
    rgba(129, 140, 248, 0.45),
    rgba(34, 211, 238, 0.48),
    rgba(167, 139, 250, 0.42),
    rgba(59, 130, 246, 0.55)
  );
  background-size: 260% 260%;
}

.contact-info-shimmer--footer > img {
  border-radius: 11px;
  box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.92);
}

@keyframes contact-shimmer-shift {
  0%,
  100% {
    background-position: 8% 35%;
  }
  50% {
    background-position: 92% 65%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-info-shimmer {
    animation: none;
    background-position: 50% 50%;
  }
}

.map-placeholder {
  width: 100%;
  height: auto;
  min-height: 200px;
  object-fit: cover;
}

.recruit-card-wrap {
  max-width: 680px;
}

.recruit-card-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--bg-card);
}

.recruit-card-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  min-width: 0;
}

.brand-text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--ink);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-text span {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 0.4rem 0.55rem;
  cursor: pointer;
  color: var(--ink);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--ink-soft);
  font-size: 0.88rem;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius);
  text-decoration: none;
  white-space: nowrap;
}

.nav a:hover {
  background: var(--blue-glow);
  color: var(--blue-deep);
  text-decoration: none;
}

.nav a.is-active {
  background: var(--blue);
  color: #fff;
}

.hero {
  position: relative;
  color: #fff;
  min-height: clamp(320px, 58vw, 520px);
  display: flex;
  align-items: flex-end;
}

.hero.hero--vfx {
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #0b1220 center/cover no-repeat;
}

.hero--vfx .hero-bg {
  overflow: hidden;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.hero--vfx .hero-bg img {
  animation: heroKenBurns 34s ease-in-out infinite alternate;
  will-change: transform;
}

/* —— 首页首屏：行业感动态视觉（玻璃干涉色 + 精密网格 + 扫描光带 + 导电迹线） —— */
.hero--vfx .hero-fx {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.hero-fx-caustics {
  position: absolute;
  inset: -8%;
  opacity: 0.42;
  mix-blend-mode: soft-light;
  background:
    radial-gradient(ellipse 42% 32% at 22% 58%, rgba(96, 165, 250, 0.35), transparent),
    radial-gradient(ellipse 38% 28% at 78% 32%, rgba(186, 230, 253, 0.28), transparent),
    radial-gradient(ellipse 48% 36% at 58% 72%, rgba(59, 130, 246, 0.22), transparent);
  animation: heroCausticDrift 24s ease-in-out infinite alternate;
}

.hero-fx-chrome {
  position: absolute;
  inset: -60%;
  opacity: 0.55;
  mix-blend-mode: soft-light;
  background: linear-gradient(
    118deg,
    transparent 38%,
    rgba(255, 255, 255, 0.06) 44%,
    rgba(191, 219, 254, 0.14) 50%,
    rgba(255, 255, 255, 0.05) 56%,
    transparent 62%
  );
  background-size: 220% 220%;
  animation: heroChromeSweep 14s ease-in-out infinite;
}

.hero-fx-field {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  mix-blend-mode: screen;
  background-image: radial-gradient(circle at center, rgba(165, 200, 240, 0.45) 0.55px, transparent 0.6px);
  background-size: 13px 13px;
  mask-image: linear-gradient(100deg, transparent 5%, #000 22%, #000 78%, transparent 95%);
  -webkit-mask-image: linear-gradient(100deg, transparent 5%, #000 22%, #000 78%, transparent 95%);
  animation: heroFieldShear 38s linear infinite;
}

.hero-fx-vscan {
  position: absolute;
  inset: 0;
  mix-blend-mode: overlay;
  opacity: 0.35;
  background: linear-gradient(90deg, transparent 0%, transparent 46%, rgba(255, 255, 255, 0.09) 50%, transparent 54%, transparent 100%);
  background-size: 240% 100%;
  animation: heroVscan 7.5s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

.hero-fx-iris {
  position: absolute;
  inset: -35%;
  transform-origin: 70% 45%;
  will-change: transform;
  background: conic-gradient(
    from 210deg at 70% 45%,
    rgba(8, 61, 117, 0) 0deg,
    rgba(30, 120, 200, 0.12) 55deg,
    rgba(200, 220, 255, 0.14) 110deg,
    rgba(11, 92, 171, 0.1) 180deg,
    rgba(255, 255, 255, 0.06) 240deg,
    rgba(8, 61, 117, 0) 360deg
  );
  mix-blend-mode: soft-light;
  animation: heroIrisSpin 28s linear infinite;
}

.hero-fx-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 220, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 220, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 85% 75% at 72% 42%, #000 10%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 72% 42%, #000 10%, transparent 72%);
  animation: heroGridPulse 5.5s ease-in-out infinite;
  opacity: 0.85;
}

.hero-fx-beam {
  position: absolute;
  top: 42%;
  left: -25%;
  width: 42%;
  height: 4px;
  background: linear-gradient(90deg, transparent, rgba(220, 240, 255, 0.95), rgba(180, 210, 255, 0.4), transparent);
  filter: blur(1.5px);
  transform: rotate(-7deg) scaleX(0.6);
  opacity: 0;
  animation: heroBeamSweep 11s ease-in-out infinite;
}

.hero-fx-beam--sec {
  top: 56%;
  width: 36%;
  height: 2px;
  filter: blur(2px);
  opacity: 0;
  transform: rotate(6deg) scaleX(0.45);
  animation: heroBeamSweepSec 14s ease-in-out infinite;
  animation-delay: -5.5s;
}

.hero-fx-sparks {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 55%, rgba(255, 255, 255, 0.12) 0%, transparent 0.9%),
    radial-gradient(circle at 78% 38%, rgba(200, 230, 255, 0.14) 0%, transparent 1%),
    radial-gradient(circle at 62% 62%, rgba(255, 255, 255, 0.1) 0%, transparent 0.75%),
    radial-gradient(circle at 45% 28%, rgba(180, 210, 255, 0.12) 0%, transparent 0.85%);
  background-size: 130% 130%;
  animation: heroSparkDrift 18s ease-in-out infinite alternate;
  mix-blend-mode: screen;
  opacity: 0.55;
}

.hero-fx-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
  mix-blend-mode: screen;
}

.hero-fx-dots circle {
  animation: heroDotPulse 2.85s ease-in-out infinite;
}

.hero-fx-dots circle:nth-child(1) {
  animation-delay: 0s;
}

.hero-fx-dots circle:nth-child(2) {
  animation-delay: 0.45s;
}

.hero-fx-dots circle:nth-child(3) {
  animation-delay: 0.9s;
}

.hero-fx-dots circle:nth-child(4) {
  animation-delay: 1.35s;
}

.hero-fx-dots circle:nth-child(5) {
  animation-delay: 1.8s;
}

.hero-fx-dots circle:nth-child(6) {
  animation-delay: 2.2s;
}

.hero-fx-trace {
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dashoffset: 0;
}

.hero-fx-trace--a {
  stroke-dasharray: 42 110;
  animation: heroTraceFlow 14s linear infinite;
}

.hero-fx-trace--b {
  stroke-dasharray: 28 90;
  animation: heroTraceFlow 19s linear infinite reverse;
  opacity: 0.9;
}

.hero-fx-trace--c {
  stroke-dasharray: 36 100;
  animation: heroTraceFlow 16s linear infinite;
  animation-delay: -5s;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(105deg, rgba(10, 18, 32, 0.88) 0%, rgba(10, 18, 32, 0.45) 55%, rgba(10, 18, 32, 0.2) 100%);
}

.hero-inner {
  position: relative;
  z-index: 3;
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.25rem 1.25rem 2.5rem;
  width: 100%;
}

.hero-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 0.75rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.45rem, 3.2vw, 2.35rem);
  font-weight: 650;
  line-height: 1.2;
  max-width: 20em;
}

.hero-sub {
  margin: 0 0 1.5rem;
  font-size: 0.98rem;
  color: #dbe4f0;
  max-width: 40em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

@keyframes heroKenBurns {
  0% {
    transform: scale(1.04) translate(0, 0);
  }
  100% {
    transform: scale(1.1) translate(-1.3%, -0.7%);
  }
}

@keyframes heroCausticDrift {
  0% {
    transform: scale(1) translate(0, 0) rotate(0deg);
    filter: blur(0);
  }
  100% {
    transform: scale(1.06) translate(-2.5%, 1.8%) rotate(1.5deg);
    filter: blur(0.8px);
  }
}

@keyframes heroChromeSweep {
  0%,
  100% {
    background-position: 0% 35%;
    opacity: 0.45;
  }
  50% {
    background-position: 100% 65%;
    opacity: 0.78;
  }
}

@keyframes heroFieldShear {
  0% {
    transform: translate(0, 0) skewX(0deg);
    opacity: 0.16;
  }
  50% {
    transform: translate(-2%, 1%) skewX(-0.6deg);
    opacity: 0.24;
  }
  100% {
    transform: translate(-4%, 0) skewX(0deg);
    opacity: 0.16;
  }
}

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

@keyframes heroBeamSweepSec {
  0% {
    transform: translateX(-8%) rotate(6deg) scaleX(0.4);
    opacity: 0;
  }
  7% {
    opacity: 0.75;
  }
  42% {
    transform: translateX(235%) rotate(6deg) scaleX(1.1);
    opacity: 0.55;
  }
  52% {
    opacity: 0;
  }
  100% {
    transform: translateX(235%) rotate(6deg) scaleX(1.1);
    opacity: 0;
  }
}

@keyframes heroDotPulse {
  0%,
  100% {
    opacity: 0.2;
  }
  50% {
    opacity: 1;
  }
}

@keyframes heroIrisSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes heroGridPulse {
  0%,
  100% {
    opacity: 0.55;
    filter: brightness(1);
  }
  50% {
    opacity: 0.92;
    filter: brightness(1.12);
  }
}

@keyframes heroBeamSweep {
  0% {
    transform: translateX(-5%) rotate(-7deg) scaleX(0.5);
    opacity: 0;
  }
  6% {
    opacity: 0.9;
  }
  45% {
    transform: translateX(240%) rotate(-7deg) scaleX(1.05);
    opacity: 0.75;
  }
  55% {
    opacity: 0;
  }
  100% {
    transform: translateX(240%) rotate(-7deg) scaleX(1.05);
    opacity: 0;
  }
}

@keyframes heroSparkDrift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(2.5%, -1.5%, 0) scale(1.06);
  }
}

@keyframes heroTraceFlow {
  to {
    stroke-dashoffset: -720;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero--vfx .hero-bg img {
    animation: none !important;
    transform: none;
    will-change: auto;
  }

  .hero--vfx .hero-fx-caustics,
  .hero--vfx .hero-fx-chrome,
  .hero--vfx .hero-fx-field,
  .hero--vfx .hero-fx-vscan,
  .hero--vfx .hero-fx-iris,
  .hero--vfx .hero-fx-grid,
  .hero--vfx .hero-fx-beam,
  .hero--vfx .hero-fx-beam--sec,
  .hero--vfx .hero-fx-sparks,
  .hero--vfx .hero-fx-trace--a,
  .hero--vfx .hero-fx-trace--b,
  .hero--vfx .hero-fx-trace--c,
  .hero--vfx .hero-fx-dots circle {
    animation: none !important;
  }

  .hero--vfx .hero-fx-sparks {
    opacity: 0.22;
    transform: none;
  }

  .hero--vfx .hero-fx-iris {
    transform: none;
    will-change: auto;
  }

  .hero--vfx .hero-fx-caustics {
    opacity: 0.18;
    transform: none;
    filter: none;
  }

  .hero--vfx .hero-fx-chrome {
    opacity: 0.25;
  }

  .hero--vfx .hero-fx-field,
  .hero--vfx .hero-fx-vscan {
    opacity: 0.08;
  }

  .hero--vfx .hero-fx-dots circle {
    opacity: 0.45;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.btn-primary:hover {
  background: var(--blue-deep);
  border-color: var(--blue-deep);
  text-decoration: none;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.16);
  text-decoration: none;
}

.section {
  padding: 3rem 1.25rem;
}

.section.alt {
  background: #e7ecf3;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.section-head h2 {
  margin: 0;
  font-size: 1.45rem;
  color: var(--ink);
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.2rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  color: var(--ink);
}

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

.media-card {
  overflow: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.media-card .thumb {
  aspect-ratio: 4/3;
  background: #0f172a;
}

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

.media-card .body {
  padding: 1.1rem 1.15rem 1.2rem;
}

.pill {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-deep);
  background: var(--blue-glow);
  border: 1px solid rgba(11, 92, 171, 0.2);
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  margin-bottom: 0.35rem;
}

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

.partner {
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 1.25rem 1rem;
  text-align: center;
  background: #fff;
}

.partner strong {
  display: block;
  font-size: 1rem;
  color: var(--ink);
}

.partner span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.site-footer {
  background: var(--ink);
  color: #cbd5e1;
  padding: 2.5rem 1.25rem;
  margin-top: 2rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

.site-footer h4 {
  margin: 0 0 0.65rem;
  color: #fff;
  font-size: 0.95rem;
}

.site-footer p,
.site-footer a {
  font-size: 0.88rem;
  color: #cbd5e1;
}

.site-footer a:hover {
  color: #fff;
}

.footer-bottom {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  color: #94a3b8;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem 1rem;
  text-align: center;
}

.footer-bottom-copy {
  color: #94a3b8;
}

.page-hero {
  background: linear-gradient(120deg, var(--blue-deep), #0f172a);
  color: #fff;
  padding: 2.4rem 1.25rem;
}

.page-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.page-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.page-hero p {
  margin: 0;
  color: #dbeafe;
  max-width: 46em;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th,
td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f1f5f9;
  color: var(--ink);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

.faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  background: #fff;
  margin-bottom: 0.65rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.map-google-card {
  min-height: 0;
}

.map-google-frame {
  display: block;
  width: 100%;
  height: clamp(300px, 48vw, 440px);
  min-height: 300px;
  border: 0;
}

form .field {
  margin-bottom: 0.85rem;
}

form label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

form input,
form select,
form textarea {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  font: inherit;
  background: #fff;
}

form textarea {
  min-height: 120px;
  resize: vertical;
}

.map-frame {
  border: 0;
  width: 100%;
  min-height: 320px;
  border-radius: 10px;
  filter: grayscale(0.15) contrast(1.02);
}

.fab-bar {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.fab-bar a {
  background: var(--ink);
  color: #fff;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.fab-bar a:hover {
  background: var(--blue-deep);
  text-decoration: none;
}

.tagline-en {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.stat-item {
  text-align: center;
  padding: 1.1rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.stat-item strong {
  display: block;
  font-size: 1.6rem;
  color: var(--blue);
  line-height: 1.15;
}

.stat-item span {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.intro-columns {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-top: 1.75rem;
}

.intro-columns .card p {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.intro-columns .card p:last-child {
  margin-bottom: 0;
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  counter-reset: step;
}

.step {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.15rem 1rem 1.1rem 1rem;
  background: #fff;
  position: relative;
  padding-top: 1.9rem;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0.75rem;
  left: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: var(--blue);
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
  color: var(--ink);
}

.step p {
  margin: 0;
  font-size: 0.87rem;
  color: var(--text-muted);
}

.timeline {
  border-left: 2px solid var(--line);
  margin-left: 0.45rem;
  padding-left: 1.2rem;
}

.timeline-item {
  margin-bottom: 1.15rem;
  position: relative;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.39rem;
  top: 0.32rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--line);
}

.timeline-item strong {
  color: var(--ink);
}

.insight-card .meta {
  font-size: 0.76rem;
  color: var(--silver-dark);
  margin-bottom: 0.45rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.insight-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  color: var(--ink);
}

.split-reverse {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 1.5rem;
  align-items: start;
}

/* —— 首页：专业叙事 / 深色能力带 —— */
.hero-scope {
  margin: 0 0 0.9rem;
  max-width: 46rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.78);
  line-height: 1.65;
}

.home-lead {
  max-width: 54rem;
  margin: 0 auto 1.85rem;
  text-align: center;
  font-size: 1.04rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.cap-mini {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver-dark);
  margin-bottom: 0.4rem;
}

.tech-bullets {
  margin: 0.55rem 0 0;
  padding-left: 1.05rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.tech-bullets li {
  margin-bottom: 0.3rem;
}

.section--premium {
  position: relative;
  background: linear-gradient(158deg, #0a101c 0%, #132a4a 45%, #0a121f 100%);
  color: #e2e8f0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section--premium::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 90% 55% at 50% -15%, rgba(59, 130, 246, 0.14), transparent 58%);
  pointer-events: none;
}

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

.section--premium .section-head h2 {
  color: #f8fafc;
}

.section--premium .section-head p {
  color: #94a3b8;
}

.section--premium .card {
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.section--premium .card h3 {
  color: #f1f5f9;
}

.section--premium .card p {
  color: #cbd5e1;
}

.section--premium a {
  color: #93c5fd;
}

.section--premium a:hover {
  color: #dbeafe;
}

.section--premium .table-wrap {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.22);
}

.section--premium th {
  background: rgba(255, 255, 255, 0.07);
  color: #e2e8f0;
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.section--premium td {
  color: #cbd5e1;
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.section--premium tr:last-child td {
  border-bottom: none;
}

@media (max-width: 960px) {
  .stat-strip,
  .steps-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-columns,
  .split-reverse {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.5rem;
  }

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

  .header-inner {
    flex-wrap: wrap;
  }

  .nav-wrap {
    width: 100%;
    order: 3;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .logo-row {
    grid-template-columns: 1fr;
  }

  .stat-strip,
  .steps-row {
    grid-template-columns: 1fr;
  }
}