/* 星创科技 — 科技 × 生物 × 生态 */
:root {
  --xc-blue: #0052d9;
  --xc-blue-dark: #001a4d;
  --xc-teal: #00c9a7;
  --xc-teal-dark: #008f78;
  --xc-cyan: #4dd4ff;
  --xc-purple: #5a3cc8;
  --xc-gold: #ffc83c;
  --xc-text: #0f172a;
  --xc-text-muted: #64748b;
  --xc-bg: #eef6f4;
  --xc-bg-mesh: #e8f4f8;
  --xc-white: #ffffff;
  --xc-glass: rgba(255, 255, 255, 0.72);
  --xc-radius: 16px;
  --xc-radius-lg: 24px;
  --xc-shadow: 0 12px 40px rgba(0, 82, 217, 0.1);
  --xc-shadow-glow: 0 0 40px rgba(0, 201, 167, 0.15);
  --xc-max: 1160px;
  --xc-font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --grad-eco: linear-gradient(135deg, var(--xc-blue-dark) 0%, #003d8f 35%, var(--xc-teal-dark) 100%);
  --grad-card: linear-gradient(145deg, rgba(0, 82, 217, 0.06), rgba(0, 201, 167, 0.08));
  --xc-brand-black: #050a12;
  --xc-header-bg: rgba(5, 10, 18, 0.85);
  --xc-gold-light: #e8c872;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--xc-font);
  color: rgba(255, 255, 255, 0.88);
  background: var(--xc-brand-black);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 70% 45% at 15% 10%, rgba(0, 201, 167, 0.08), transparent),
    radial-gradient(ellipse 55% 40% at 85% 90%, rgba(0, 82, 217, 0.1), transparent),
    var(--xc-brand-black);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.12;
  background-image: url("../svg/eco-mesh.svg");
  background-size: 600px 600px;
  pointer-events: none;
}

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

img.img-sharp {
  image-rendering: high-quality;
  image-rendering: -webkit-optimize-contrast;
}

a {
  color: var(--xc-teal-dark);
  text-decoration: none;
}

a:hover {
  color: var(--xc-blue);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  padding: 8px 16px;
  background: var(--xc-blue);
  color: #fff;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* Header — 深色底与 Logo 黑底融合，衔接 Hero */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--xc-brand-black);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

body[data-page="home"] .site-header {
  position: absolute;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: none;
}

body[data-page="home"] .site-header.is-scrolled {
  position: fixed;
  background: rgba(5, 10, 18, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 201, 167, 0.12);
}

.site-header__inner {
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 1;
}

.site-logo:hover {
  text-decoration: none;
  opacity: 0.9;
}

.site-logo__icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}

.site-logo__word {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.site-logo--footer .site-logo__word {
  font-size: 1rem;
}

.site-logo--footer {
  margin-bottom: 12px;
}

.site-footer__tagline {
  margin: 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9375rem;
  font-weight: 500;
  position: relative;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--xc-teal);
  text-decoration: none;
}

.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: linear-gradient(90deg, var(--xc-blue), var(--xc-teal));
  border-radius: 2px;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(0, 201, 167, 0.25);
}

.lang-switch button {
  padding: 5px 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}

.lang-switch button:hover {
  color: var(--xc-teal);
}

.lang-switch button.is-active {
  background: linear-gradient(135deg, var(--xc-blue), var(--xc-teal));
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 201, 167, 0.35);
}

@media (max-width: 768px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

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

/* Hero — 轮播 + 双主视觉（首屏 100vh，控件悬浮） */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  height: 100vh;
  height: 100dvh;
  min-height: 560px;
}

.hero-carousel__viewport {
  position: relative;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.85s ease, visibility 0.85s ease;
  z-index: 0;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg--abstract {
  background:
    linear-gradient(180deg, rgba(5, 10, 18, 0.55) 0%, rgba(5, 10, 18, 0.75) 100%),
    url("../img/hero-bg-abstract.png") center / cover no-repeat,
    linear-gradient(145deg, #050a12 0%, #0c1f3d 45%, #0a3d36 100%);
}

.hero__bg--eco {
  background:
    linear-gradient(180deg, rgba(5, 10, 18, 0.78) 0%, rgba(5, 10, 18, 0.88) 100%),
    url("../img/hero-main.png") center / cover no-repeat,
    linear-gradient(160deg, #050a12 0%, #0a2840 50%, #063528 100%);
}

.hero__globe-scene {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(56vw, 460px);
  height: min(56vw, 460px);
  transform: translate(-50%, -46%);
  pointer-events: none;
  opacity: 0.42;
}

.hero__globe {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, rgba(126, 232, 213, 0.35) 0%, transparent 42%),
    radial-gradient(circle at 68% 72%, rgba(0, 82, 217, 0.45) 0%, transparent 48%),
    radial-gradient(circle at 50% 50%, #1a6b8a 0%, #0c3d52 38%, #051820 72%, #020810 100%);
  box-shadow:
    inset -18px -12px 36px rgba(0, 0, 0, 0.45),
    inset 12px 8px 24px rgba(126, 232, 213, 0.12),
    0 0 80px rgba(0, 201, 167, 0.18);
  animation: hero-globe-drift 32s ease-in-out infinite;
}

.hero__globe::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 18px,
      rgba(126, 232, 213, 0.06) 18px,
      rgba(126, 232, 213, 0.06) 19px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 22px,
      rgba(0, 201, 167, 0.05) 22px,
      rgba(0, 201, 167, 0.05) 23px
    );
  animation: hero-globe-lines 24s linear infinite;
  opacity: 0.85;
}

.hero__globe::after {
  content: "";
  position: absolute;
  inset: -8%;
  border-radius: 50%;
  border: 1px solid rgba(0, 201, 167, 0.12);
  box-shadow: 0 0 40px rgba(0, 201, 167, 0.08);
}

@keyframes hero-globe-drift {
  0%,
  100% {
    transform: rotate(-6deg) scale(1);
  }
  50% {
    transform: rotate(6deg) scale(1.03);
  }
}

@keyframes hero-globe-lines {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.hero-carousel__controls {
  position: absolute;
  left: 50%;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(5, 10, 18, 0.52);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.38);
  transform: translateX(-50%);
  pointer-events: auto;
}

.hero-carousel__arrow {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: border-color 0.2s, background 0.2s;
}

.hero-carousel__arrow:hover {
  border-color: rgba(0, 201, 167, 0.55);
  background: rgba(0, 201, 167, 0.12);
}

.hero-carousel__dots {
  display: flex;
  gap: 8px;
}

.hero-carousel__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
  cursor: pointer;
  font-size: 0;
  transition: transform 0.2s, background 0.2s;
}

.hero-carousel__dot.is-active {
  background: var(--xc-teal);
  transform: scale(1.15);
  box-shadow: 0 0 10px rgba(0, 201, 167, 0.45);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
  pointer-events: none;
  z-index: 2;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 96px 24px 112px;
  width: 100%;
  box-sizing: border-box;
}

.hero__inner--center {
  text-align: center;
  max-width: 720px;
}

body[data-page="home"] .hero {
  padding-top: 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(0, 201, 167, 0.28);
  font-size: 0.8125rem;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.04em;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--xc-teal);
  box-shadow: 0 0 8px var(--xc-teal);
}

.hero h1,
.hero h2.hero__title {
  margin: 0 0 20px;
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero__accent {
  background: linear-gradient(90deg, #7ee8d5 0%, var(--xc-teal) 50%, #4dd4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__lead {
  margin: 0 auto 32px;
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
  max-width: 32em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 48px;
}

.hero__metrics {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero__metrics li {
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--xc-brand-black));
  pointer-events: none;
  z-index: 2;
}

@media (max-width: 900px) {
  .hero__inner {
    padding: 88px 20px 100px;
  }

  .hero-carousel__controls {
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    padding: 6px 12px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--xc-teal);
  color: #fff;
  box-shadow: none;
}

.btn--primary:hover {
  background: var(--xc-teal-dark);
  box-shadow: 0 8px 24px rgba(0, 201, 167, 0.25);
}

.btn--ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

.btn--outline {
  background: transparent;
  color: var(--xc-teal);
  border: 1px solid rgba(0, 201, 167, 0.45);
  box-shadow: none;
}

.btn--outline:hover {
  background: rgba(0, 201, 167, 0.1);
  border-color: var(--xc-teal);
  color: #fff;
}

/* 主内容区 — 与头尾同色深底 */
#main {
  position: relative;
  background: var(--xc-brand-black);
}

.section {
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 80px 24px;
  position: relative;
}

.section--alt {
  background: rgba(255, 255, 255, 0.025);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-left: auto;
  margin-right: auto;
  box-shadow: none;
  border-radius: 0;
}

.section--full.section--alt {
  margin-left: 0;
  margin-right: 0;
}

.section--full {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.section--full > .section__inner {
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--xc-teal);
  margin-bottom: 8px;
}

.section__title {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

.section__subtitle {
  margin: 0 0 40px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 1.0625rem;
  max-width: 42em;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.card {
  background: rgba(10, 18, 32, 0.85);
  border-radius: var(--xc-radius);
  border: 1px solid rgba(0, 201, 167, 0.14);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  border-color: rgba(0, 201, 167, 0.28);
}

.card::before {
  display: none;
}

.card__img-wrap {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #001a4d, #004d40);
}

.card__img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
  transition: transform 0.4s ease;
}

.card:hover .card__img {
  transform: scale(1.03);
}

.card__body {
  padding: 24px;
}

.card__icon {
  display: none;
}

.card__body h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.card__body h3 a {
  color: #fff;
  text-decoration: none;
}

.card__body h3 a:hover {
  color: var(--xc-teal);
}

.card__body p {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
}

/* Features — 生态网格 */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  padding: 28px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--xc-radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: none;
  position: relative;
  overflow: hidden;
}

.feature-list li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--xc-teal);
}

.feature-list__icon {
  display: none;
}

.feature-list h3 {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  color: #fff;
}

.feature-list p {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.58);
}

/* DNA 装饰区 */
.eco-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 16px;
}

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

.eco-visual__img {
  border-radius: var(--xc-radius-lg);
  border: 1px solid rgba(0, 201, 167, 0.2);
  box-shadow: var(--xc-shadow);
}

/* Product page */
.product-hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

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

.product-hero__img {
  border-radius: var(--xc-radius-lg);
  border: 1px solid rgba(0, 201, 167, 0.25);
  box-shadow: var(--xc-shadow), var(--xc-shadow-glow);
}

.product-block__heading {
  margin: 32px 0 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--xc-teal);
}

.product-block__heading:first-of-type {
  margin-top: 0;
}

.product-cta {
  text-align: center;
}

.product-cta .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

.product-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 8px;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}

.steps li {
  position: relative;
  padding: 16px 16px 16px 56px;
  margin-bottom: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--xc-radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.85);
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--xc-blue), var(--xc-teal));
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.faq details {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--xc-radius);
  padding: 18px 22px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
  color: #fff;
}

.faq p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
}

/* Footer — 与 Logo 黑底统一 */
.site-footer {
  background: var(--xc-brand-black);
  color: rgba(255, 255, 255, 0.85);
  padding: 56px 24px 36px;
  margin-top: 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--xc-teal), transparent);
}

.site-footer__inner {
  max-width: var(--xc-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  position: relative;
  z-index: 1;
}

.site-footer h2 {
  font-size: 1rem;
  margin: 0 0 12px;
  color: #fff;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin-bottom: 8px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
}

.site-footer a:hover {
  color: var(--xc-teal);
  text-decoration: none;
}

.site-footer__legal {
  max-width: var(--xc-max);
  margin: 36px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  position: relative;
  z-index: 1;
}

.site-footer__copy {
  margin: 0;
  font-size: 0.8125rem;
  opacity: 0.7;
}

.site-footer__icp {
  margin: 8px 0 0;
  font-size: 0.8125rem;
}

.site-footer__icp a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}

.site-footer__icp a:hover {
  color: var(--xc-teal);
  text-decoration: none;
}

.breadcrumb {
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 88px 24px 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a:hover {
  color: var(--xc-teal);
}

.breadcrumb [aria-current="page"] {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.product-hero h1,
.product-hero .section__subtitle {
  color: #fff;
}

/* 产品详情页 — 内容区居中、全宽交替背景 */
body[data-page^="products/"] .section {
  width: 100%;
  max-width: var(--xc-max);
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}

body[data-page^="products/"] .section--alt:not(.section--full) {
  max-width: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-left: 24px;
  padding-right: 24px;
}

body[data-page^="products/"] .section--alt:not(.section--full) > * {
  width: 100%;
  max-width: var(--xc-max);
}

body[data-page^="products/"] .section__subtitle {
  max-width: 48em;
}

body[data-page^="products/"] .breadcrumb {
  width: 100%;
  max-width: var(--xc-max);
  box-sizing: border-box;
}

/* About — 企业信息 */
.about-intro {
  margin: 0 0 32px;
  max-width: 52em;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.72);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 0 0 36px;
}

@media (max-width: 560px) {
  .info-grid {
    grid-template-columns: 1fr;
  }
}

.info-grid__item {
  padding: 20px 22px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--xc-radius);
}

.info-grid__item--wide {
  grid-column: 1 / -1;
}

.info-grid dt {
  margin: 0 0 6px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--xc-teal);
}

.info-grid dd {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
}

.about-scope {
  padding: 28px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--xc-radius-lg);
  margin-bottom: 28px;
}

.about-scope__title {
  margin: 0 0 16px;
  font-size: 1.0625rem;
  color: #fff;
}

.about-scope__list {
  margin: 0;
  padding-left: 1.25em;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.about-scope__list li + li {
  margin-top: 8px;
}

.about-scope__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.about-mission {
  margin: 0;
  max-width: 52em;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.8;
}

:root:lang(zh) .about-mission,
:root:lang(zh-CN) .about-mission {
  white-space: nowrap;
  max-width: none;
}

@media (max-width: 640px) {
  :root:lang(zh) .about-mission,
  :root:lang(zh-CN) .about-mission {
    white-space: normal;
  }
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.contact-card {
  padding: 28px;
  background: rgba(10, 18, 32, 0.85);
  border: 1px solid rgba(0, 201, 167, 0.14);
  border-radius: var(--xc-radius-lg);
}

.contact-card h3 {
  margin: 0 0 18px;
  font-size: 1.0625rem;
  color: #fff;
}

.contact-list {
  margin: 0;
}

.contact-list > div + div {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.contact-list dt {
  margin: 0 0 4px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.contact-list dd {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
}

.contact-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
}

.contact-card__hint {
  margin-top: 14px !important;
  font-size: 0.875rem !important;
  color: rgba(255, 255, 255, 0.5) !important;
}

.contact-card__wxmp {
  margin: 22px 0 0;
  text-align: center;
}

.contact-card__wxmp img {
  width: 140px;
  height: auto;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #fff;
}

.contact-card__wxmp figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.5;
}

/* Partners — 参考云厂商合作伙伴展示 */
.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;
}

.partners-band {
  position: relative;
  overflow: hidden;
  padding: 40px 0 44px;
  background: #eef1f6;
  background-image:
    linear-gradient(118deg, rgba(255, 255, 255, 0.65) 0%, transparent 42%),
    linear-gradient(298deg, rgba(255, 255, 255, 0.45) 0%, transparent 38%),
    linear-gradient(180deg, #f3f5f9 0%, #eef1f6 100%);
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.partners-band__inner {
  max-width: var(--xc-max);
  margin: 0 auto;
  padding: 0 24px;
}

.partners-band__lead {
  margin: 0 auto 24px;
  max-width: none;
  text-align: center;
  font-size: clamp(0.6875rem, 1.1vw + 0.55rem, 0.9375rem);
  line-height: 1.5;
  color: #5c6578;
  white-space: nowrap;
}

.partners-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.partners-marquee {
  overflow: hidden;
  position: relative;
  border-radius: 6px;
}

.partners-marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.partners-marquee__track--a {
  animation: partners-scroll-a 38s linear infinite;
  animation-delay: 0s;
}

.partners-marquee__track--b {
  animation: partners-scroll-b 44s linear infinite;
  animation-delay: -16s;
}

.partners-marquee__track--c {
  animation: partners-scroll-c 32s linear infinite;
  animation-delay: -8s;
}

.partners-marquee__group {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0 6px;
}

.partners-marquee__item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 118px;
  height: 48px;
  padding: 0 14px;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.07);
  transition: box-shadow 0.2s ease;
}

.partners-marquee__item:hover {
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.11);
}

.partner-logo {
  font-size: clamp(0.75rem, 1.8vw, 0.875rem);
  font-weight: 700;
  white-space: nowrap;
  line-height: 1;
  letter-spacing: 0.01em;
}

.partner-logo--aliyun { color: #ff6a00; }
.partner-logo--tencent { color: #00a4ff; }
.partner-logo--huawei { color: #cf0a2c; }
.partner-logo--baidu { color: #2932e1; font-size: clamp(0.6875rem, 1.6vw, 0.8125rem); }
.partner-logo--tianyi { color: #e60012; }
.partner-logo--unicom { color: #e60012; font-size: clamp(0.6875rem, 1.6vw, 0.8125rem); }
.partner-logo--telecom { color: #005bac; font-size: clamp(0.6875rem, 1.6vw, 0.8125rem); }
.partner-logo--mobile { color: #0085cf; font-size: clamp(0.6875rem, 1.6vw, 0.8125rem); }
.partner-logo--deepseek {
  color: #4d6bfe;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
.partner-logo--qiniu { color: #00a7e1; }

@keyframes partners-scroll-a {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

@keyframes partners-scroll-b {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

@keyframes partners-scroll-c {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.partners-marquee:hover .partners-marquee__track {
  animation-play-state: paused;
}

@media (max-width: 480px) {
  .partners-band {
    padding: 32px 0 36px;
  }

  .partners-marquee__item {
    min-width: 104px;
    height: 44px;
    padding: 0 10px;
  }

  .partners-marquee__group {
    gap: 10px;
  }
}

.site-footer__info {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
}

.site-footer__wxmp h2 {
  margin-bottom: 12px;
}

.footer-wxmp {
  margin: 0;
}

.footer-wxmp img {
  width: 112px;
  height: auto;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #fff;
}

.footer-wxmp figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.5;
}

/* 右侧浮动 — 微信 / 电话 */
.float-dock {
  position: fixed;
  right: 0;
  bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-end;
  filter: drop-shadow(-4px 4px 16px rgba(0, 0, 0, 0.35));
}

.side-float {
  display: flex;
  align-items: stretch;
  flex-direction: row-reverse;
}

.side-float__toggle {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 10px 0 0 10px;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.side-float--wx .side-float__toggle {
  background: #07c160;
}

.side-float--wx .side-float__toggle:hover {
  background: #06ad56;
}

.side-float--wx.is-open .side-float__toggle {
  background: #059c4e;
}

.side-float--phone .side-float__toggle {
  background: var(--xc-blue);
}

.side-float--phone .side-float__toggle:hover {
  background: #0046b8;
}

.side-float--phone.is-open .side-float__toggle {
  background: #003a99;
}

.side-float__icon {
  width: 20px;
  height: 20px;
  display: block;
}

.side-float__panel {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-width 0.45s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.35s ease;
  pointer-events: none;
}

.side-float.is-open .side-float__panel {
  opacity: 1;
  pointer-events: auto;
}

.side-float.is-open .side-float__panel:not(.side-float__panel--compact) {
  max-width: 268px;
}

.side-float.is-open .side-float__panel--compact {
  max-width: 220px;
}

.side-float__panel-inner {
  width: 252px;
  padding: 18px 16px 16px;
  background: rgba(8, 14, 26, 0.97);
  border-right: none;
  border-radius: 14px 0 0 14px;
  backdrop-filter: blur(14px);
}

.side-float--wx .side-float__panel-inner {
  border: 1px solid rgba(7, 193, 96, 0.35);
}

.side-float--phone .side-float__panel-inner {
  border: 1px solid rgba(0, 82, 217, 0.35);
}

.side-float__panel-inner--compact {
  width: 204px;
  padding: 16px 14px 14px;
}

.side-float__title {
  margin: 0 0 10px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
}

.side-float__qr {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  background: #fff;
  padding: 4px;
}

.side-float__phone {
  display: block;
  text-align: center;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--xc-teal);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.side-float__phone:hover {
  color: #fff;
  text-decoration: none;
}

.side-float__contact {
  margin: 8px 0 0;
  text-align: center;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.82);
}

.side-float__hint {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
  line-height: 1.5;
}

@media (max-width: 480px) {
  .float-dock {
    bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .side-float.is-open .side-float__panel:not(.side-float__panel--compact) {
    max-width: min(268px, calc(100vw - 40px));
  }

  .side-float.is-open .side-float__panel--compact {
    max-width: min(220px, calc(100vw - 40px));
  }

  .side-float__panel-inner {
    width: min(252px, calc(100vw - 56px));
  }

  .side-float__panel-inner--compact {
    width: min(204px, calc(100vw - 56px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide {
    transition: none;
  }

  .hero__globe,
  .hero__globe::before {
    animation: none;
  }

  .side-float__panel {
    transition: none;
  }

  .side-float__toggle {
    transition: none;
  }

  .partners-marquee__track--a,
  .partners-marquee__track--b,
  .partners-marquee__track--c {
    animation: none;
  }

  .hero__badge-dot {
    animation: none;
  }
}