:root {
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --accent: #06b6d4;
  --accent-light: #0e7490;
  --accent-dark: #155e75;
  --gold: #f59e0b;
  --bg-dark: #f4f5fc;
  --bg-card: #ffffff;
  --bg-card-hover: #f2fcfd;
  --text-primary: #1c2333;
  --text-secondary: #4a5265;
  --text-muted: #7d879c;
  --border-subtle: rgba(15, 23, 42, 0.12);
  --border-medium: rgba(15, 23, 42, 0.18);
  --gradient-hero: linear-gradient(
    135deg,
    #ffffff 0%,
    #eef1fc 40%,
    #f2effd 70%,
    #ffffff 100%
  );
  --gradient-primary: linear-gradient(
    135deg,
    #4f46e5 0%,
    #06b6d4 50%,
    #6366f1 100%
  );
  --gradient-card: linear-gradient(
    145deg,
    rgba(79, 70, 229, 0.05) 0%,
    rgba(6, 182, 212, 0.04) 100%
  );
  --glow-primary:
    0 0 4rem rgba(79, 70, 229, 0.14), 0 0 8rem rgba(79, 70, 229, 0.06);
  --glow-accent: 0 0 3rem rgba(6, 182, 212, 0.12);
  --shadow-sm: 0 0.1rem 0.3rem rgba(15, 23, 42, 0.08);
  --shadow-md: 0 0.4rem 2rem rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 1rem 4rem rgba(15, 23, 42, 0.12);
  --radius-sm: 0.8rem;
  --radius-md: 1.2rem;
  --radius-lg: 2rem;
  --radius-xl: 2.8rem;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: clamp(9px, 0.417vw + 5px, 11px);
}

body {
  font-family:
    "Noto Sans SC",
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background:
                /* Soft ambient light pools */
    radial-gradient(
      ellipse 80% 50% at 50% -10%,
      rgba(99, 102, 241, 0.09) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 60% 40% at 85% 20%,
      rgba(6, 182, 212, 0.06) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 50% 40% at 10% 65%,
      rgba(168, 85, 247, 0.05) 0%,
      transparent 60%
    ),
    var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
/* Global grain texture to break up flat colors (film grain overlay) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}

/* ==================== Typography ==================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.3;
}
h1 {
  font-size: clamp(3.52rem, 5vw, 6.08rem);
}
h2 {
  font-size: clamp(2.88rem, 3.5vw, 4.16rem);
}
h3 {
  font-size: clamp(1.92rem, 2.5vw, 2.56rem);
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent);
}

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

/* ==================== Container ==================== */
.container {
  width: 100%;
  max-width: 128rem;
  margin: 0 auto;
  padding: 0 2.4rem;
}

@media (min-width: 1400px) {
  .container {
    max-width: 136rem;
  }
}

/* ==================== Navbar ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  min-height: 6rem;
  box-sizing: border-box;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 0.1rem solid transparent;
  box-shadow: none;
  transition:
    background 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease,
    padding 0.35s ease;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(2rem);
  -webkit-backdrop-filter: blur(2rem);
  border-bottom: 0.1rem solid var(--border-subtle);
  box-shadow: 0 0.4rem 3rem rgba(15, 23, 42, 0.08);
  padding: 0.6rem 0;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-brand {
  position: relative;
  line-height: 1;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 0.03rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-brand-icon {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.92rem;
  color: #fff;
  flex-shrink: 0;
}
.navbar-brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.navbar-badge {
  font-size: 0.96rem;
  font-weight: 450;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: uppercase;
  margin-top: 0.32rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.8rem;
  align-items: center;
}
.nav-mobile-cta {
  display: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 1.44rem;
  font-weight: 500;
  padding: 0.8rem 1.6rem;
  border-radius: 5rem;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(79, 70, 229, 0.07);
}
/* 当前区域高亮：主色背景 + 白字 */
.nav-links a.active {
  color: #3365c4;
   background: rgba(79, 70, 229, 0.09);
}
.nav-links a.active:hover {
  color: #fff;
  background: #3b75d2;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.nav-reg {
  color: #fff !important;
  background: var(--gradient-primary);
  border-radius: 5rem;
  padding: 0.8rem 1.8rem !important;
  box-shadow: var(--glow-primary);
}
.nav-reg:hover {
  color: #fff !important;
  transform: translateY(-0.2rem);
}
.nav-phone {
  font-size: 1.52rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.05rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
@media (max-width: 1279px) {
  .nav-phone {
    display: none;
  }
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2.8rem;
  border-radius: 5rem;
  font-weight: 600;
  font-size: 1.52rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover {
  transform: translateY(-0.2rem);
  box-shadow:
    0 0 6rem rgba(79, 70, 229, 0.35),
    0 0 10rem rgba(6, 182, 212, 0.2);
  color: #fff;
}
.btn-outline {
  background: transparent;
  border: 0.15rem solid rgba(79, 70, 229, 0.3);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--primary-light);
  background: rgba(79, 70, 229, 0.08);
  color: var(--text-primary);
}

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.8rem;
  z-index: 1001;
  flex-shrink: 0;
  width: 4rem;
  height: 4rem;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}
.hamburger:hover {
  background: rgba(79, 70, 229, 0.08);
}
.hamburger span {
  display: block;
  width: 2.2rem;
  height: 0.2rem;
  background: var(--text-primary);
  border-radius: 0.2rem;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.4rem, 0.4rem);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.4rem, -0.4rem);
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 7rem;
    left: 0;
    right: 0;
    height: calc(100dvh - 7rem);
    min-height: 48rem;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(2rem);
    -webkit-backdrop-filter: blur(2rem);
    padding: 2.8rem 2rem 3.2rem;
    gap: 0.8rem;
    z-index: 1000;
    justify-content: flex-start;
    align-items: stretch;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav-links.mobile-open li {
    width: 100%;
    text-align: center;
    flex-shrink: 0;
  }
  .nav-links.mobile-open a {
    font-size: 1.68rem;
    padding: 1.4rem 2rem;
    white-space: normal;
    display: block;
    border-radius: var(--radius-md);
    background: rgba(79, 70, 229, 0.05);
    flex-shrink: 0;
  }
  /* Mobile-only CTA area below menu items */
  .nav-links.mobile-open .nav-mobile-cta {
    margin-top: 1.6rem;
    padding: 1.6rem 0 0;
    border-top: 0.1rem solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    align-items: center;
    flex-shrink: 0;
  }
}
@media (max-width: 480px) {
  .navbar-brand-inner {
    font-size: 1.68rem;
  }
  .navbar-badge {
    letter-spacing: 0.1em;
  }
}

/* ==================== Hero ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.88)),
    url(/assets/img/computer.jpg);
  background-position: center;
  background-size: cover;
  padding: 12rem 0 8rem;
}

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

/* ==================== Hero Carousel ==================== */
.hero-carousel {
  position: relative;
  overflow: hidden;
}
.hero-carousel-track {
  display: flex;
  transition: transform 0.9s cubic-bezier(0.65, 0, 0.35, 1);
}
.hero-carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  min-width: 100%;
}

/* Arrows */
.hero-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 4.6rem;
  height: 4.6rem;
  border-radius: 50%;
  border: 0.1rem solid var(--border-medium);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(0.8rem);
  -webkit-backdrop-filter: blur(0.8rem);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  font-size: 1.52rem;
}
.hero-carousel-arrow:hover {
  background: #fff;
  color: var(--primary);
  transform: translateY(-50%) scale(1.06);
}
.hero-carousel-arrow-prev {
  left: 2.2rem;
}
.hero-carousel-arrow-next {
  right: 2.2rem;
}

/* Dots */
.hero-carousel-dots {
  position: absolute;
  bottom: 2.6rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  z-index: 20;
}
.hero-carousel-dot {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(15, 23, 42, 0.22);
  cursor: pointer;
  transition: var(--transition);
}
.hero-carousel-dot:hover {
  background: rgba(79, 70, 229, 0.5);
}
.hero-carousel-dot.active {
  background: var(--primary);
  transform: scale(1.3);
  box-shadow: 0 0 1.2rem rgba(79, 70, 229, 0.55);
}
@media (max-width: 768px) {
  .hero-carousel-arrow {
    display: none;
  }
  .hero-carousel-dots {
    bottom: 1.8rem;
  }
}

/* ==================== Slide 2: GEO 生成引擎优化（适配自 dzsmxx.com） ==================== */
.hcar-slide2 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.9)),
    url(/assets/img/hero-ai-light.jpg);

  background-position: 50%;
  background-size: cover;
  padding: 15rem 0 10rem;
  overflow: hidden;
}
.hcar-slide2-inner {
  width: 100%;
  max-width: 128rem;
  margin: 0 auto;
  padding: 0 2.4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6.4rem;
  align-items: center;
}
.hcar-slide2-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 2rem;
  margin-bottom: 3rem;
  font-size: 1.472rem;
  font-weight: 700;
  color: #fff;
  border-radius: 99.9rem;
  background: linear-gradient(-45deg, #06f, #7000ff, #ff2d55, #ff6b00);
  background-size: 400% 400%;
  animation: hcarGradientShift 10s ease infinite;
  box-shadow: 0 0.8rem 2.4rem rgba(0, 102, 255, 0.35);
}
.hcar-slide2-title {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.hcar-slide2-title-main {
  font-size: clamp(3.84rem, 5vw, 6.24rem);
  font-weight: 900;
  color: #0f0f12;
}
.hcar-slide2-title-sub {
  font-size: clamp(2.72rem, 3.8vw, 4.8rem);
  font-weight: 900;
  background: linear-gradient(90deg, #06f, #7000ff, #ff2d55);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: hcarTextGradient 4s linear infinite;
}
.hcar-slide2-desc {
  font-size: clamp(1.68rem, 1.6vw, 1.92rem);
  color: #6b7280;
  line-height: 1.8;
  max-width: 56rem;
  margin-bottom: 4.4rem;
  font-weight: 500;
}
.hcar-slide2-btns {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.hcar-slide2-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.8rem 4rem;
  background: #06f;
  color: #fff;
  border-radius: 2rem;
  font-weight: 800;
  font-size: 1.68rem;
  box-shadow: 0 1.6rem 4rem rgba(0, 102, 255, 0.35);
  transition: all 0.3s ease;
}
.hcar-slide2-btn-primary:hover {
  background: #7000ff;
  color: #fff;
  transform: translateY(-0.2rem);
}
.hcar-slide2-btn-primary i {
  transition: transform 0.3s ease;
}
.hcar-slide2-btn-primary:hover i {
  transform: translateX(0.6rem);
}
.hcar-slide2-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.8rem 4rem;
  background: #fff;
  color: #0f0f12;
  border: 0.2rem solid #e5e7eb;
  border-radius: 2rem;
  font-weight: 800;
  font-size: 1.68rem;
  transition: all 0.3s ease;
  text-align: center;
}
.hcar-slide2-btn-ghost:hover {
  background: #f8fafc;
  color: #0f0f12;
  border-color: #d1d5db;
  transform: translateY(-0.2rem);
}

/* 右侧 AI 对话模拟 */
.hcar-slide2-right {
  position: relative;
  display: flex;
  justify-content: center;
}
.hcar-slide2-mock {
  width: 100%;
  max-width: 56rem;
  padding: 3rem;
  border-radius: 4.8rem;
  background: linear-gradient(-45deg, #06f, #7000ff, #ff2d55, #ff6b00);
  background-size: 400% 400%;
  animation: hcarGradientShift 10s ease infinite;
  box-shadow: 0 3rem 6rem rgba(0, 102, 255, 0.25);
}
.hcar-slide2-mock-inner {
  background: #0f0f12;
  border-radius: 4rem;
  padding: 3.8rem;
  aspect-ratio: 16 / 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 0.1rem solid rgba(255, 255, 255, 0.1);
}
.hcar-slide2-mock-top {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.2rem;
}
.hcar-dot {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
}
.hcar-dot-red {
  background: #ef4444;
}
.hcar-dot-yellow {
  background: #eab308;
}
.hcar-dot-green {
  background: #22c55e;
}
.hcar-slide2-q {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  color: #60a5fa;
  font-family: "SF Mono", ui-monospace, monospace;
  font-size: 1.632rem;
  margin-bottom: 1.8rem;
}
.hcar-slide2-q-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.2);
  border: 0.1rem solid rgba(59, 130, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.28rem;
  flex-shrink: 0;
}
.hcar-slide2-divider {
  height: 0.1rem;
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 1.8rem;
}
.hcar-slide2-a {
  display: flex;
  gap: 1.6rem;
  align-items: flex-start;
}
.hcar-slide2-a-logo {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  overflow: hidden;
  background: #fff;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hcar-slide2-a-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.hcar-slide2-a-lines {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 0.4rem;
}
.hcar-line {
  height: 1.4rem;
  border-radius: 99.9rem;
  background: rgba(255, 255, 255, 0.1);
}
.hcar-line-short {
  width: 82%;
}
.hcar-slide2-a-bubble {
  padding: 1.4rem 1.6rem;
  border-radius: 1.6rem;
  background: linear-gradient(
    90deg,
    rgba(37, 99, 235, 0.3),
    rgba(124, 58, 237, 0.3)
  );
  border: 0.1rem solid rgba(59, 130, 246, 0.3);
  color: #93c5fd;
  font-weight: 700;
  font-size: 1.408rem;
  line-height: 1.7;
}

@keyframes hcarGradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}
@keyframes hcarTextGradient {
  to {
    background-position: 200% center;
  }
}

/* 入场动画 */
.hcar-entrance {
  animation: hcarFadeUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hcar-d1 {
  animation-delay: 0.05s;
}
.hcar-d2 {
  animation-delay: 0.15s;
}
.hcar-d3 {
  animation-delay: 0.28s;
}
.hcar-d4 {
  animation-delay: 0.4s;
}
@keyframes hcarFadeUp {
  from {
    opacity: 0;
    transform: translateY(2.8rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1023px) {
  .hcar-slide2 {
    padding: 0 0 5rem;
  }
  .hcar-slide2-right {
    display: none;
  }
  .hcar-slide2-inner {
    grid-template-columns: 1fr;
  }
}

/* Section decorative backgrounds */
/* Fine noise texture overlay */
.bg-noise::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  opacity: 0.6;
}

/* Aurora light band sweep (decorative div) */

/* Soft top/bottom transition glow between sections
           (uses inset box-shadow so it never conflicts with section ::before/::after) */

/* AI Brand logo styles */
.ai-platform-item .ai-brand-logo {
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.44rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.2rem;
  transition: var(--transition);
}
.ai-platform-item:hover .ai-brand-logo {
  transform: scale(1.1);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 2rem;
  border-radius: 5rem;
  background: rgba(79, 70, 229, 0.1);
  border: 0.1rem solid rgba(79, 70, 229, 0.25);
  font-size: 1.408rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 3.2rem;
}

/* 首页 Hero slide 1 徽章：与 slide 2 的 .hcar-slide2-badge 同款流光胶囊
   （限定 .hero 作用域，不影响 registration.vue 里的 .hero-badge） */
.hero .hero-badge {
  padding: 0.9rem 2rem;
  border: 0;
  border-radius: 99.9rem;
  margin-bottom: 3rem;
  font-size: 1.472rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(-45deg, #06f, #7000ff, #ff2d55, #ff6b00);
  background-size: 400% 400%;
  box-shadow: 0 0.8rem 2.4rem rgba(0, 102, 255, 0.35);
  /* 保留入场动画，同时叠加流光位移；delay 由 .hcar-d1 提供（两个动画共用） */
  animation:
    hcarFadeUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) both,
    hcarGradientShift 10s ease infinite;
}

.hero-title {
  margin-bottom: 1.2rem;
}
.hero-title .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1.68rem, 2vw, 2.08rem);
  color: var(--text-secondary);
  max-width: 70rem;
  margin: 0 auto 4rem;
  font-weight: 400;
}
.hero-buttons {
  display: flex;
  gap: 1.6rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 4.8rem;
}

.ai-platforms {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}

/* Hero slide 1 分栏：左文案 / 右按钮+平台（仅宽屏生效） */
.hero-grid {
  display: block;
}
@media (min-width: 1024px) {
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    column-gap: 6.4rem;
    align-items: center;
    text-align: left;
  }
  .hero-buttons {
    margin-top: 3.5rem;
  }
  .hero-col-text .hero-badge {
    margin-bottom: 2.4rem;
  }
  .hero-col-text .hero-title {
    margin-bottom: 2rem;
  }
  .hero-col-text .hero-subtitle {
    max-width: 52rem;
    margin: 0;
    padding-bottom: 8.6rem;
  }
  .hero-col-action {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    align-items: flex-start;
  }
  .hero-col-action .hero-buttons {
    justify-content: flex-start;
    margin-bottom: 0;
  }
  .hero-col-action .ai-platforms {
    justify-content: flex-start;
    gap: 1.6rem 2rem;
  }
}
.ai-platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 0.1rem solid var(--border-subtle);
  transition: var(--transition);
  min-width: 7rem;
}
.ai-platform-item:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-0.4rem);
  box-shadow: var(--glow-accent);
}
.ai-platform-icon {
  width: 3.6rem;
  height: 3.6rem;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.28rem;
  font-weight: 700;
  color: #fff;
}
.ai-platform-name {
  font-size: 1.152rem;
  font-weight: 500;
  color: var(--text-secondary);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(3rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== Section Common ==================== */
.section {
  padding: 10rem 0;
  position: relative;
  background: #ffffff;
}
@media (max-width: 768px) {
  .section {
    padding: 5rem 0;
  }
}
.section-header {
  text-align: center;
  max-width: 80rem;
  margin: 0 auto 5rem;
}
.section-label {
  display: inline-block;
  font-size: 1.36rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  margin-bottom: 1.6rem;
  padding: 0.4rem 1.4rem;
  border-radius: 5rem;
  background: rgba(6, 182, 212, 0.1);
  border: 0.1rem solid rgba(6, 182, 212, 0.2);
}
.section-title {
  margin-bottom: 1.6rem;
  position: relative;
}
.section-title::after {
  content: "";
  display: block;
  width: 6rem;
  height: 0.3rem;
  margin: 2rem auto 0;
  border-radius: 0.2rem;
  background: var(--gradient-primary);
}
.section-subtitle {
  font-size: 1.68rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 400;
}

/* ==================== Why GEO Section ==================== */
.why-geo {
  background: #ffffff;
  position: relative;
  overflow: hidden;
}

.why-geo > .container {
  position: relative;
  z-index: 1;
}
.insight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
  gap: 3.2rem;
}
.insight-card {
  display: flex;
  flex-direction: column;
  padding: 3.2rem 3.8rem 3.8rem;
  border-radius: 4.2rem;
  background: var(--bg-card);
  border: 0.1rem solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 1rem 4rem rgba(15, 23, 42, 0.06);
  transition: var(--transition);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.insight-card:hover {
  border-color: rgba(79, 70, 229, 0.15);
  box-shadow: 0 2rem 6rem rgba(15, 23, 42, 0.1);
  transform: translateY(-0.6rem);
}
.insight-card-decor {
  position: absolute;
  top: 0;
  right: 0;
  width: 11rem;
  height: 11rem;
  border-bottom-left-radius: 6.4rem;
  pointer-events: none;
  transition: var(--transition);
}
.insight-card:hover .insight-card-decor {
  transform: scale(1.08);
}
.insight-card-icon {
  position: relative;
  z-index: 1;
  width: 7rem;
  height: 7rem;
  border-radius: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2.8rem;
  box-shadow: 0 1rem 2.8rem rgba(15, 23, 42, 0.16);
  transition: var(--transition);
}
.insight-card-icon i {
  color: #ffffff;
  font-size: 2.64rem;
}
.insight-card:hover .insight-card-icon {
  transform: scale(1.08);
}
.insight-card h3 {
  position: relative;
  z-index: 1;
  margin-bottom: 1.8rem;
  font-size: 2.16rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
}
.insight-card p {
  position: relative;
  z-index: 1;
  color: var(--text-secondary);
  font-size: 1.536rem;
  line-height: 1.75;
  margin-bottom: 2.2rem;
  flex-grow: 1;
}
.insight-card-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}
.insight-card-list li {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-size: 1.568rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 0.6rem 0;
}
.insight-card-list li i {
  font-size: 1.84rem;
  flex-shrink: 0;
}

/* ==================== What is GEO Section ==================== */
.geo-concept .section-subtitle strong {
  color: var(--primary);
  font-weight: 700;
}
.geo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(26rem, 1fr));
  gap: 2.8rem;
  position: relative;
  z-index: 1;
}
.geo-card {
  padding: 4rem 3.4rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 0.1rem solid var(--border-subtle);
  box-shadow: 0 1rem 3rem rgba(15, 23, 42, 0.07);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-align: left;
}
.geo-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0.4rem;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.geo-card:hover {
  transform: translateY(-0.6rem);
  border-color: rgba(79, 70, 229, 0.2);
  box-shadow: var(--shadow-lg);
}
.geo-card:hover::after {
  transform: scaleX(1);
}
.geo-card-num {
  position: absolute;
  top: 2.2rem;
  right: 2.8rem;
  font-size: 4.4rem;
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.16;
}
.geo-card-icon {
  width: 6.4rem;
  height: 6.4rem;
  border-radius: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2.6rem;
  box-shadow: 0 1rem 2.4rem rgba(15, 23, 42, 0.16);
  transition: var(--transition);
}
.geo-card-icon i {
  color: #ffffff;
  font-size: 2.4rem;
}
.geo-card:hover .geo-card-icon {
  transform: scale(1.08) rotate(-4deg);
}
.geo-card h3 {
  font-size: 2.08rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.4rem;
}
.geo-card p {
  color: var(--text-secondary);
  font-size: 1.536rem;
  line-height: 1.75;
}

/* Alternating dark background sections — multi-layer depth */
.section-alt {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.81), rgba(255, 255, 255, 0.9)),
    url(/assets/img/hero-ai-light.jpg);
  background-position: center;
  background-size: cover;
  position: relative;
  overflow: hidden;
}
.section-alt > .container {
  position: relative;
  z-index: 1;
}

.section-news {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.88)),
    url(/assets/img/hero-ai-light.jpg);
  background-position: center;
  background-size: cover;
  position: relative;
  overflow: hidden;
}

.section-faq {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 1)),
    url(/assets/img/question-bg.jpg);
  background-position: center bottom;
  background-size: cover;
  position: relative;
  overflow: hidden;
}
/* ==================== Stats ==================== */
.stats-bar {
  background: var(--gradient-primary);
  padding: 4.8rem 0;
  position: relative;
  overflow: hidden;
}
.stats-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(
      circle at 20% 30%,
      rgba(255, 255, 255, 0.12) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 80% 70%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 40%
    ),
    radial-gradient(
      ellipse 60% 50% at 50% 50%,
      rgba(255, 255, 255, 0.05) 0%,
      transparent 70%
    );
  pointer-events: none;
}
.stats-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
/* Flowing light streak across the stats bar */
.stats-bar .stats-shine {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 16rem;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(255, 255, 255, 0.16) 45%,
    rgba(255, 255, 255, 0.28) 50%,
    rgba(255, 255, 255, 0.16) 55%,
    transparent 100%
  );
  transform: skewX(-18deg) translateX(-30rem);
  animation: shineSweep 5.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}
@keyframes shineSweep {
  0% {
    transform: skewX(-18deg) translateX(-32rem);
  }
  55%,
  100% {
    transform: skewX(-18deg) translateX(calc(100vw + 32rem));
  }
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.4rem;
  text-align: center;
  position: relative;
  z-index: 1;
}
@media (min-width: 640px) {
  .stats-grid {
    gap: 3.2rem;
  }
}
@media (min-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 4rem;
  }
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3.6rem 2rem;
  border-radius: 4rem;
  background: #f8fafc;
  border: 0.1rem solid #f1f5f9;
  transition: all 0.35s ease;
}
.stat-item:hover {
  background: #ffffff;
  box-shadow: 0 2.5rem 6rem rgba(2, 6, 23, 0.35);
  transform: translateY(-0.4rem);
}
.stat-item:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}
@media (min-width: 640px) {
  .stat-item:last-child:nth-child(odd) {
    grid-column: auto;
  }
}
.stat-item h4 {
  font-size: 4.16rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1rem;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat-item p {
  font-size: 1.312rem;
  font-weight: 700;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}
.stat-g-blue {
  background-image: linear-gradient(90deg, #3b82f6, #22d3ee);
}
.stat-g-purple {
  background-image: linear-gradient(90deg, #a855f7, #ec4899);
}
.stat-g-orange {
  background-image: linear-gradient(90deg, #f97316, #facc15);
}
.stat-g-green {
  background-image: linear-gradient(90deg, #22c55e, #34d399);
}
.stat-g-indigo {
  background-image: linear-gradient(90deg, #6366f1, #06b6d4);
}

/* ==================== Cases ==================== */
#cases.section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(
      ellipse 60% 45% at 85% 25%,
      rgba(168, 85, 247, 0.05) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 55% 45% at 10% 80%,
      rgba(79, 70, 229, 0.06) 0%,
      transparent 65%
    ),
    #ffffff;
}
#cases.section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(79, 70, 229, 0.06) 0.1rem,
    transparent 0.1rem
  );
  background-size: 3.2rem 3.2rem;
  mask-image: radial-gradient(
    ellipse 70% 50% at center,
    black 0%,
    transparent 70%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 70% 50% at center,
    black 0%,
    transparent 70%
  );
  pointer-events: none;
}
#cases.section::after {
  content: "";
  position: absolute;
  top: -10rem;
  left: -10rem;
  width: 40rem;
  height: 40rem;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(168, 85, 247, 0.08) 0%,
    rgba(192, 132, 252, 0.03) 45%,
    transparent 70%
  );
  filter: blur(4rem);
  pointer-events: none;
}
#cases.section > .container {
  position: relative;
  z-index: 1;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem 3.5rem;
}
.case-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 0.1rem solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-0.6rem);
  box-shadow: var(--shadow-lg);
  border-color: rgba(79, 70, 229, 0.25);
}
.case-card-img {
  height: 13.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4.16rem;
  color: #fff;
  flex-shrink: 0;
}
.case-card-img i {
  opacity: 0.92;
  transition: transform 0.4s ease;
  text-shadow: 0 0.4rem 2rem rgba(0, 0, 0, 0.2);
}
.case-card:hover .case-card-img i {
  transform: scale(1.15);
}
.case-card-body {
  padding: 2rem 2.2rem 2.4rem;
}
.case-card-title {
  font-size: 1.728rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.8rem;
}

.case-card-desc {
  font-size: 1.408rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.case-card-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.2rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-color);
  transition: var(--transition);
}
.case-card-more i {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}
.case-card:hover .case-card-more {
  gap: 0.9rem;
}
.case-card:hover .case-card-more i {
  transform: translateX(0.4rem);
}

@media (max-width: 1024px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
}

/* ==================== Products (System) ==================== */

#products.section {
  position: relative;
  overflow: hidden;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.8)),
    url(/assets/img/news-bg3.jpg);
  background-position: 50%;
  background-size: cover;

 
}
#products.section > .container {
  position: relative;
  z-index: 1;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(32rem, 1fr));
  gap: 2.4rem;
}
.product-card {
  padding: 3.6rem 2.8rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 0.1rem solid var(--border-subtle);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: "";
  position: absolute;
  top: -0.1rem;
  left: -0.1rem;
  right: -0.1rem;
  bottom: -0.1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.14) 0%,
    transparent 50%,
    rgba(6, 182, 212, 0.1) 100%
  );
  opacity: 0;
  transition: var(--transition);
  z-index: -1;
}
.product-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0.3rem;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}
.product-card:hover::after {
  transform: scaleX(1);
}
.product-card:hover {
  border-color: rgba(79, 70, 229, 0.25);
  transform: translateY(-0.4rem);
  box-shadow: var(--shadow-lg);
}
.product-card-number {
  font-size: 4.8rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  position: absolute;
  top: 1.6rem;
  right: 2.4rem;
  line-height: 1;
}
.product-card-icon {
  width: 4.8rem;
  height: 4.8rem;
  border-radius: var(--radius-sm);
  background: rgba(79, 70, 229, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.08rem;
  color: var(--primary-light);
  margin-bottom: 1.8rem;
  border: 0.1rem solid rgba(79, 70, 229, 0.15);
}
.product-card h3 {
  font-size: 1.76rem;
  margin-bottom: 1rem;
}
.product-card p {
  color: var(--text-secondary);
  font-size: 1.44rem;
  line-height: 1.7;
}

/* ==================== Philosophy ==================== */
.philosophy {
  background: linear-gradient(135deg, #1e3a8a 0%, #1a56db 50%, #0891b2 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.philosophy::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60rem;
  height: 60rem;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.08) 0%,
    transparent 60%
  );
  pointer-events: none;
}
.philosophy::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 52rem;
  height: 52rem;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.06) 0%,
    transparent 60%
  );
  pointer-events: none;
}
.philosophy-inner {
  position: relative;
  z-index: 1;
}
.philosophy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6.4rem;
  align-items: center;
}
.philosophy-label {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.36rem;
  font-weight: 700;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2.4rem;
}
.philosophy-label::before {
  content: "";
  width: 2.2rem;
  height: 0.3rem;
  border-radius: 0.2rem;
  background: var(--gold);
}
.philosophy-quote {
  font-size: clamp(3.2rem, 4vw, 4.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 2.4rem;
  color: #fff;
}
.philosophy-quote .accent {
  color: var(--gold);
}
.philosophy-desc {
  font-size: 1.76rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 3.2rem;
}
.philosophy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.4rem 3rem;
  border-radius: 5rem;
  background: var(--gold);
  color: #1e3a8a;
  font-weight: 800;
  font-size: 1.6rem;
  transition: var(--transition);
}
.philosophy-btn:hover {
  background: #fbbf24;
  color: #1e3a8a;
  transform: translateY(-0.2rem);
  box-shadow: 0 1.2rem 3rem rgba(245, 158, 11, 0.35);
}
.philosophy-btn i {
  transition: transform var(--transition);
}
.philosophy-btn:hover i {
  transform: translateX(0.6rem);
}
.philosophy-points {
  list-style: none;
  display: grid;
  gap: 1.6rem;
  margin: 0;
  padding: 0;
}
.philosophy-points li {
  display: flex;
  align-items: flex-start;
  gap: 1.6rem;
  padding: 2rem 2.4rem;
  background: rgba(255, 255, 255, 0.1);
  border: 0.1rem solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  backdrop-filter: blur(1rem);
  -webkit-backdrop-filter: blur(1rem);
  transition: var(--transition);
}
.philosophy-points li:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateX(0.4rem);
}
.philosophy-point-num {
  flex-shrink: 0;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  background: var(--gold);
  color: #1e3a8a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.6rem;
}
.philosophy-point-body strong {
  display: block;
  color: #fff;
  font-size: 1.68rem;
  margin-bottom: 0.4rem;
}
.philosophy-point-body span {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.44rem;
  line-height: 1.6;
  display: block;
}

@media (max-width: 900px) {
  .philosophy-content {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
}

/* ==================== News ==================== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 90rem;
  margin: 0 auto;
}
.news-row {
  display: flex;
  gap: 2.4rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 0.1rem solid var(--border-subtle);
  transition: var(--transition);
  align-items: flex-start;
}
.news-row:hover {
  border-color: #bfdce2;
  transform: translateX(0.4rem);
  box-shadow: var(--shadow-md);
  background: var(--bg-card-hover);
}
.news-row-cover {
  width: 20rem;
  height: 13rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-row-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-row-cover .no-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  width: 100%;
  height: 100%;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.08) 0%,
    rgba(6, 182, 212, 0.06) 100%
  );
}
.news-row-body {
  flex: 1;
  min-width: 0;
}
.news-row-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 0.8rem;
  font-size: 1.35rem;
}
.news-row-date {
  color: var(--accent-light);
  font-weight: 500;
}
.news-row-more {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;

  font-weight: 700;
  color: #aaa;
  transition: var(--transition);
}
.news-row-more i {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}
.news-row:hover .news-row-more {
  gap: 0.9rem;
}
.news-row:hover .news-row-more i {
  transform: translateX(0.4rem);
}
.news-row-title {
  font-size: 1.68rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}
.news-row:hover .news-row-title {
  color: #101010;
}
.news-row-desc {
  font-size: 1.4rem;
  color: var(--text-secondary);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
  margin-top: 4rem;
}
.news-page-btn {
  padding: 0.8rem 1.8rem;
  border-radius: 5rem;
  border: 0.1rem solid var(--border-medium);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.408rem;
  font-family: inherit;
}
.news-page-btn:hover {
  background: rgba(79, 70, 229, 0.07);
  color: var(--text-primary);
}
.news-page-info {
  font-size: 1.408rem;
  color: var(--text-muted);
  font-weight: 500;
}
/* 禁用态（无上一页 / 下一页）置灰 */
.news-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  color: var(--text-muted);
  background: transparent;
}
.news-page-btn:disabled:hover {
  background: transparent;
  color: var(--text-muted);
  transform: none;
}

@media (max-width: 640px) {
  .news-row {
    flex-direction: column;
  }
  .news-row-cover {
    width: 100%;
    height: 18rem;
  }
}

/* ==================== FAQ ==================== */
.faq-list {
  max-width: 80rem;
  margin: 0 auto;
}
.faq-item {
  border: 0.1rem solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1.2rem;
  overflow: hidden;
  background: var(--bg-card);
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--border-medium);
}
.faq-question {
  padding: 2rem 2.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 1.568rem;
  user-select: none;
}
/* 问题开头的 "Q" 渐变徽标 */
.faq-question > span {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
.faq-question > span::before {
  content: "Q";
  flex-shrink: 0;
  width: 2.8rem;
  height: 2.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.8rem;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: 1.4rem;
  font-weight: 800;
  box-shadow: 0 0.4rem 1.2rem rgba(79, 70, 229, 0.22);
  transition: var(--transition);
}
.faq-item.open .faq-question > span::before {
  border-radius: 5rem;
  transform: rotate(360deg);
}
.faq-question i {
  transition: var(--transition);
  color: var(--text-muted);
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
  color: var(--accent-light);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease,
    padding 0.4s ease;
}
.faq-item.open .faq-answer {
  max-height: 50rem;
  padding: 0 2.4rem 2rem;
}
.faq-answer p {
  color: var(--text-secondary);
  font-size: 1.44rem;
  line-height: 1.8;
  position: relative;
  padding-left: 4rem;
}
/* 答案开头的 "A" 描边徽标 + 左侧渐变竖线 */
.faq-answer p::before {
  content: "A";
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 2.8rem;
  height: 2.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.8rem;
  background: rgba(79, 70, 229, 0.08);
  border: 0.1rem solid rgba(79, 70, 229, 0.3);
  color: var(--primary-color);
  font-size: 1.4rem;
  font-weight: 800;
}
@media (max-width: 640px) {
  .faq-question > span::before,
  .faq-answer p::before {
    width: 2.4rem;
    height: 2.4rem;
    font-size: 1.2rem;
    border-radius: 0.6rem;
  }
  .faq-question > span {
    gap: 1rem;
  }
  .faq-answer p {
    padding-left: 3.4rem;
  }
}

/* ==================== Contact CTA ==================== */
.cta-section {
  background:
                /* ambient color pools */
    radial-gradient(
      ellipse 50% 60% at 20% 20%,
      rgba(255, 255, 255, 0.14) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 50% 60% at 80% 80%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 40% 40% at 70% 15%,
      rgba(255, 255, 255, 0.08) 0%,
      transparent 65%
    ),
    linear-gradient(135deg, #4f46e5 0%, #4338ca 40%, #0e7490 100%);
  padding: 8rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0.1rem;
  background: var(--gradient-primary);
}
.cta-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.16) 0.1rem,
    transparent 0.1rem
  );
  background-size: 3rem 3rem;
  mask-image: radial-gradient(
    ellipse 60% 60% at center,
    black 0%,
    transparent 70%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 60% 60% at center,
    black 0%,
    transparent 70%
  );
  pointer-events: none;
}
.cta-section > .container {
  position: relative;
  z-index: 1;
}
.cta-title {
  font-size: clamp(2.56rem, 3vw, 3.52rem);
  margin-bottom: 1.6rem;
  color: #fff;
}
.cta-subtitle {
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 4rem;
  font-size: 1.6rem;
}
.cta-contact-row {
  display: flex;
  justify-content: center;
  gap: 3.2rem;
  flex-wrap: wrap;
  margin-top: 3.2rem;
}
.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 2.4rem;
  border-radius: 5rem;
  background: rgba(255, 255, 255, 0.12);
  border: 0.1rem solid rgba(255, 255, 255, 0.28);
  font-size: 1.52rem;
  color: rgba(255, 255, 255, 0.9);
}
.cta-contact-item i {
  color: #fff;
}
.cta-contact-item strong {
  color: #fff;
}

/* CTA 二维码卡片 */
.cta-qr {
  margin: 2.5rem auto 1.8rem;
  padding: 1.3rem 1.6rem 1.2rem;
  width: 18rem;
  box-sizing: border-box;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 1.2rem 4rem rgba(15, 23, 42, 0.3);
  text-align: center;
  transition: var(--transition);
}
.cta-qr:hover {
  transform: translateY(-0.4rem);
  box-shadow: 0 1.8rem 5rem rgba(15, 23, 42, 0.38);
}
.cta-qr img {
  display: block;
  width: 100%;
  object-fit: cover;
  border-radius: 1rem;
}
.cta-qr p {
  font-size: 1.12rem;
  font-weight: 300;
  color: #1c2333;
  letter-spacing: 0.02em;
}

/* ==================== Footer ==================== */
.site-footer {
  /* 深色页脚：在作用域内反转文字/边框变量，子元素自动适配 */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-subtle: rgba(255, 255, 255, 0.1);
  --accent-light: #22d3ee;
  background:
    radial-gradient(
      ellipse 50% 40% at 20% 100%,
      rgba(79, 70, 229, 0.18) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 50% 40% at 80% 100%,
      rgba(6, 182, 212, 0.14) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 40% 30% at 50% 0%,
      rgba(99, 102, 241, 0.08) 0%,
      transparent 60%
    ),
    #0b1020;
  border-top: 0.1rem solid rgba(255, 255, 255, 0.1);
  padding: 4.8rem 0 2.4rem;
  position: relative;
  overflow: hidden;
  font-size: 1.3rem;
  color: var(--text-muted);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0.2rem;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--primary-light) 30%,
    var(--accent) 50%,
    var(--primary-light) 70%,
    transparent 100%
  );
  opacity: 0.9;
}
.site-footer::after {
  content: "";
  position: absolute;
  top: -10rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60rem;
  height: 20rem;
  background: radial-gradient(
    ellipse,
    rgba(79, 70, 229, 0.18) 0%,
    rgba(99, 102, 241, 0.08) 50%,
    transparent 70%
  );
  filter: blur(4rem);
  pointer-events: none;
}
.site-footer > .container {
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4.8rem;
  margin-bottom: 4rem;
}
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 32rem;
}
.footer-brand-name {
  font-size: 1.92rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.2rem;
}
.footer-brand-desc {
  color: var(--text-muted);
  font-size: 1.408rem;
  line-height: 1.7;
}
.footer-col h4 {
  font-size: 1.52rem;
  font-weight: 600;
  margin-bottom: 1.6rem;
  color: var(--text-primary);
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}
.footer-col ul li a {
  color: var(--text-muted);
  font-size: 1.3rem;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent-light);
}
@media (max-width: 768px) {
  .footer-col ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem 2.4rem;
  }
  .footer-col ul li {
    margin-bottom: 0;
  }
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.6rem;
  padding-top: 2.4rem;
  border-top: 0.1rem solid var(--border-subtle);
  font-size: 1.312rem;
  color: var(--text-muted);
}
.footer-bottom a {
  color: var(--text-muted);
}
.footer-bottom a:hover {
  color: var(--text-primary);
}
.footer-contact-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  color: var(--text-secondary);
}

/* ==================== Back to Top ==================== */
.back-to-top {
  position: fixed;
  bottom: 3.2rem;
  right: 3.2rem;
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: none;
  box-shadow: var(--glow-primary);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  transform: translateY(-0.3rem);
}

/* ==================== Lead FAB & Modal ==================== */
.lead-fab {
  position: fixed;
  bottom: 8.8rem;
  right: 3.2rem;
  width: 4.4rem;
  height: 4.4rem;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 0.8rem 2.4rem rgba(234, 88, 12, 0.45);
  transition: var(--transition);
}
.lead-fab i {
  font-size: 1.7rem;
}
.lead-fab:hover {
  transform: translateY(-0.3rem);
  box-shadow: 0 1.2rem 2.8rem rgba(234, 88, 12, 0.55);
}

.lead-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(0.6rem);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}
.lead-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.lead-modal {
  position: relative;
  width: 100%;
  max-width: 56rem;
  max-height: 90vh;
  overflow-y: auto;
  background: #ffffff;
  border-radius: 2rem;
  padding: 4.4rem 4.4rem 4.6rem;
  box-shadow: 0 3rem 8rem rgba(15, 23, 42, 0.3);
  transform: translateY(2rem) scale(0.98);
  transition: transform 0.3s ease;
}
.lead-modal-overlay.active .lead-modal {
  transform: translateY(0) scale(1);
}
.lead-modal-close {
  position: absolute;
  top: 1.6rem;
  right: 2rem;
  width: 3.6rem;
  height: 3.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition);
}
.lead-modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.lead-form-content h2 {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}
.lead-form-content h2 .hl {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lead-desc {
  font-size: 1.44rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.8rem;
}
.lead-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
}
.lead-form .form-field {
  margin-bottom: 1.8rem;
}
.lead-form label {
  display: block;
  font-size: 1.36rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.8rem;
}
.lead-form .req {
  color: #e11d48;
  margin-left: 0.2rem;
  font-weight: 400;
}
.lead-form input {
  width: 100%;
  height: 4.2rem;
  padding: 0 1.4rem;
  border: 0.1rem solid var(--border-subtle);
  border-radius: 1rem;
  font-size: 1.44rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-dark);
  outline: none;
  transition: var(--transition);
}
.lead-form input:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 0.3rem rgba(79, 70, 229, 0.12);
}
.lead-qrcode {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  margin: 1.8rem 0 0.4rem;
}
.lead-qrcode img {
  width: 15rem;
  height: 15rem;
  object-fit: cover;
  border-radius: 1rem;
  border: 1px solid rgba(79, 70, 229, 0.18);
  box-shadow: 0 0.4rem 1.2rem rgba(15, 23, 42, 0.08);
}
.lead-qrcode p {
  font-size: 1.28rem;
  color: var(--text-muted);
}
.lead-submit {
  width: 100%;
  height: 4.8rem;
  border: none;
  border-radius: 1.2rem;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: 1.56rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.8rem;
}
.lead-submit:hover:not(:disabled) {
  transform: translateY(-0.2rem);
  box-shadow: var(--glow-primary);
}
.lead-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}
.lead-privacy {
  font-size: 1.2rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1.4rem;
}
.lead-success {
  text-align: center;
  padding: 2rem 0 1rem;
}
.lead-success .check-icon {
  width: 6.4rem;
  height: 6.4rem;
  margin: 0 auto 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: 2.6rem;
  box-shadow: var(--glow-primary);
}
.lead-success h3 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}
.lead-success p {
  font-size: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .lead-modal {
    padding: 3.6rem 2.4rem 3.8rem;
  }
  .lead-form .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .lead-qrcode {
    display: none;
  }
}

/* ==================== Nav Link Active State (Scroll Spy) ==================== */
.nav-links a {
  position: relative;
}
.nav-links a.nav-active {
  color: var(--text-primary);
  background: rgba(79, 70, 229, 0.15);
  box-shadow: inset 0 0 0 0.1rem rgba(79, 70, 229, 0.3);
}
/* .nav-links a.nav-active::after {
  content: "";
  position: absolute;
  bottom: -0.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 2rem;
  height: 0.2rem;
  background: var(--gradient-primary);
  border-radius: 0.2rem;
} */
@media (max-width: 1024px) {
  /* .nav-links a.nav-active::after {
    display: none;
  } */
  .nav-links.mobile-open a.nav-active {
    background: rgba(79, 70, 229, 0.2);
    color: var(--accent-light);
  }
}

/* ==================== Scroll Animations ==================== */
.reveal {
  opacity: 0;
  transform: translateY(4rem);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== 资讯详情页 ==================== */
.news-detail-page {
  min-height: 100vh;
  background: #f6f7fb;
  display: flex;
  flex-direction: column;
}
.news-detail-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(1.2rem);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}
.news-detail-topbar-inner {
  max-width: 86rem;
  margin: 0 auto;
  padding: 1.6rem 2.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.news-detail-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}
.news-detail-brand i {
  color: var(--primary-color);
}
.news-detail-back {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}
.news-detail-back:hover {
  color: var(--primary-color);
}
.news-detail-main {
  flex: 1;
  width: 100%;
  max-width: 86rem;
  margin: 0 auto;
  /* 顶部留出固定导航(navbar min-height 6rem)的高度 */
  padding: 10rem 2.4rem 4rem;
}
.news-detail-card {
  background: #ffffff;
  border-radius: 2rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 1.2rem 4rem rgba(15, 23, 42, 0.06);
  padding: 4.8rem 5.6rem;
}
.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  font-size: 1.4rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.news-detail-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.news-detail-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 3.2rem;
}
.news-detail-cover {
  width: 100%;
  border-radius: 1.4rem;
  margin-bottom: 3.6rem;
  object-fit: cover;
}
.news-detail-content {
  font-size: 1.6rem;
  line-height: 1.9;
  color: var(--text-secondary);
  word-break: break-word;
}
.rich-content p {
  margin-bottom: 1.8rem;
}
.rich-content h2,
.rich-content h3,
.rich-content h4 {
  color: var(--text-primary);
  font-weight: 700;
  margin: 3rem 0 1.4rem;
  line-height: 1.4;
}
.rich-content h2 {
  font-size: 2.4rem;
}
.rich-content h3 {
  font-size: 2rem;
}
.rich-content h4 {
  font-size: 1.8rem;
}
.rich-content img {
  max-width: 100%;
  height: auto;
  border-radius: 1rem;
  margin: 2.4rem 0;
}
.rich-content a {
  color: var(--primary-color);
  text-decoration: underline;
}
.rich-content ul,
.rich-content ol {
  padding-left: 2.4rem;
  margin-bottom: 1.8rem;
}
.rich-content li {
  margin-bottom: 0.8rem;
}
.rich-content blockquote {
  border-left: 0.4rem solid var(--primary-color);
  background: rgba(79, 70, 229, 0.05);
  padding: 1.6rem 2rem;
  border-radius: 0 1rem 1rem 0;
  margin: 2rem 0;
  color: var(--text-secondary);
}
.rich-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 1.5rem;
}
.rich-content th,
.rich-content td {
  border: 1px solid rgba(15, 23, 42, 0.1);
  padding: 1rem 1.2rem;
  text-align: left;
}
.rich-content th {
  background: rgba(79, 70, 229, 0.05);
  color: var(--text-primary);
}
.rich-content pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1.8rem;
  border-radius: 1rem;
  overflow-x: auto;
  font-size: 1.4rem;
}
.news-detail-actions {
  margin-top: 3.2rem;
  display: flex;
  justify-content: center;
}
.news-detail-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 2.8rem;
  border-radius: 5rem;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--glow-primary);
  transition: var(--transition);
}
.news-detail-back-btn:hover {
  transform: translateY(-0.3rem);
}

/* 资讯详情 - 下一条（卡片内底部，横线分隔，无边框，与标题同行） */
.news-detail-next {
  margin-top: 3.2rem;
  padding-top: 2.4rem;
  border-top: 0.1rem solid var(--border-medium);
}
.news-next-link {
  display: inline-flex;
  align-items: baseline;
  gap: 1rem;
  min-width: 0;
  text-decoration: none;
  transition: var(--transition);
}
.news-next-link:hover .news-next-title {
  color: var(--brand-primary, #4f46e5);
}
.news-next-label {
  flex: none;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-muted);
}
.news-next-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-next-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}
.news-next-disabled .news-next-title {
  color: var(--text-muted);
}
.news-detail-empty {
  text-align: center;
  padding: 5rem 6rem;
}
.news-detail-empty i {
  font-size: 1.6rem;
  color: #fff;
}
.news-detail-empty h2 {
  font-size: 2.4rem;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}
.news-detail-empty p {
  font-size: 1.5rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
}
.news-detail-footer {
  background: var(--text-primary);
  color: rgba(255, 255, 255, 0.75);
  text-align: center;
  padding: 2.4rem;
  font-size: 1.3rem;
}
@media (max-width: 768px) {
  .news-detail-topbar-inner {
    padding: 1.2rem 1.6rem;
  }
  .news-detail-brand {
    font-size: 1.6rem;
  }
  .news-detail-back span {
    display: none;
  }
  .news-detail-main {
    padding: 8rem 1.2rem 3.2rem;
  }
  .news-detail-card {
    padding: 2.8rem 2rem;
    border-radius: 1.4rem;
  }
  .news-detail-title {
    font-size: 2.4rem;
  }
}

/* ==================== 案例详情页 ==================== */
.case-detail-block {
  background: #f8f9fd;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 1.4rem;
  padding: 2.8rem 3.2rem;
  margin-bottom: 2.8rem;
}
.case-detail-block-title {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.6rem;
}
.case-detail-block-title i {
  color: var(--primary-color);
  font-size: 1.7rem;
}
.case-detail-block-highlight {
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.06),
    rgba(6, 182, 212, 0.06)
  );
  border-color: rgba(79, 70, 229, 0.14);
}
.case-detail-block-highlight .case-detail-block-title i {
  color: #06b6d4;
}
.case-detail-block .rich-content {
  font-size: 1.6rem;
  line-height: 1.9;
  color: var(--text-secondary);
}
.case-detail-block .rich-content p {
  margin-bottom: 0.8rem;
}
.case-detail-block .rich-content p:last-child {
  margin-bottom: 0;
}
@media (max-width: 768px) {
  .case-detail-block {
    padding: 2rem 1.8rem;
  }
  .case-detail-block-title {
    font-size: 1.7rem;
  }
}