/* ========================================
   乐卡益官网 — 视觉样式
   参考 B2B 数字权益行业官网，独立配色与布局
   ======================================== */

:root {
  /* 品牌色 */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --accent: #06b6d4;
  --violet: #6366f1;
  --gold: #c9a227;
  --gold-soft: rgba(201, 162, 39, 0.14);

  /* 文字与背景 */
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-alt: #f1f5f9;
  --bg-dark: #0b1220;
  --hero-from: #070d18;
  --hero-mid: #0f1a33;
  --hero-to: #162d5a;

  /* 渐变与阴影层级 */
  --gradient-brand: linear-gradient(135deg, #2563eb 0%, #6366f1 52%, #06b6d4 100%);
  --gradient-soft: linear-gradient(145deg, rgba(37, 99, 235, 0.07), rgba(99, 102, 241, 0.05));
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 40px rgba(37, 99, 235, 0.11);
  --shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.16);
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);

  /* 圆角与布局 */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --header-h: 72px;
  --container: 1200px;
  --section-y: clamp(72px, 8vw, 100px);

  /* 动效曲线 */
  --ease: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  /* 锚点跳转时留出顶栏高度，避免内容被遮挡 */
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(37, 99, 235, 0.16);
  color: var(--primary-dark);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease-out), box-shadow var(--ease);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

ul { list-style: none; }

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease-out), transform var(--ease-out);
}

/* 渐变主按钮：背景独立一层，避免圆角处出现黑边；hover 时水波纹从鼠标位置扩散 */
.btn-primary {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: none;
  background: transparent;
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.32);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* 渐变底色单独一层，略向外扩展 1px 盖住抗锯齿缝隙 */
.btn-primary::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: var(--gradient-brand);
  z-index: -2;
  pointer-events: none;
}

/* 水波纹层：由 JS 写入 --ripple-x / --ripple-y，hover 时循环扩散 */
.btn-primary::after {
  content: "";
  position: absolute;
  top: var(--ripple-y, 50%);
  left: var(--ripple-x, 50%);
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.42) 0%, rgba(255, 255, 255, 0.12) 45%, transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  z-index: -1;
  pointer-events: none;
  opacity: 0;
}

.btn-primary:hover::after {
  animation: btn-ripple 1.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
}

@keyframes btn-ripple {
  0% {
    width: 0;
    height: 0;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0.55;
  }
  40% {
    opacity: 0.22;
  }
  100% {
    width: min(320px, 280%);
    height: min(320px, 280%);
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}

/* 子元素（图标等）确保在水波纹动画层之上 */
.btn-primary > * {
  position: relative;
  z-index: 1;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.4);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary:hover::after {
    animation: none;
    opacity: 0;
  }
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: var(--border);
  box-shadow: var(--shadow-xs);
}
.btn-outline:hover {
  border-color: rgba(37, 99, 235, 0.35);
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-white {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-text {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 14px;
  font-weight: 500;
}
.btn-text:hover { color: var(--primary); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.2); }

.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-header { padding: 10px 22px; font-size: 14px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: box-shadow var(--ease), border-color var(--ease), background var(--ease);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-color: var(--border);
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.logo-slogan {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list a {
  position: relative;
  padding: 9px 15px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--ease), background var(--ease);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 18px;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transform: translateX(-50%) scaleX(0);
  transition: transform var(--ease-out);
}

.nav-list a:hover {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.04);
}
.nav-list a.is-active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(37, 99, 235, 0.06);
}
.nav-list a.is-active::after,
.nav-list a:hover::after { transform: translateX(-50%) scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.06);
  border-radius: 999px;
}
.header-phone svg { flex-shrink: 0; }
.header-phone:hover { background: rgba(37, 99, 235, 0.1); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: var(--bg-soft);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--ease);
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, #0f172a 0%, var(--bg-dark) 100%);
  color: rgba(255, 255, 255, 0.62);
  padding: clamp(56px, 6vw, 72px) 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

/* 顶部品牌色渐变光线 */
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(96, 165, 250, 0.4) 25%,
    rgba(99, 102, 241, 0.5) 50%,
    rgba(6, 182, 212, 0.4) 75%,
    transparent 100%
  );
}

/* 背景光斑装饰，呼应 Hero 的 glow 层 */
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(37, 99, 235, 0.16) 0%, transparent 38%),
    radial-gradient(circle at 88% 12%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 70% 88%, rgba(6, 182, 212, 0.08) 0%, transparent 42%);
  pointer-events: none;
}

.site-footer > .container { position: relative; z-index: 1; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo { margin-bottom: 18px; }
.footer-brand .logo-name { color: #fff; }
.footer-brand .logo-slogan { color: rgba(255, 255, 255, 0.45); }

.footer-desc {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
  max-width: 340px;
}

.footer-desc + .footer-desc {
  margin-top: 12px;
}

/* 关注我们 — 社交图标区 */
.footer-social {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.footer-social-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-right: 4px;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease-out);
}

.footer-social-link:hover {
  color: #fff;
  background: rgba(96, 165, 250, 0.16);
  border-color: rgba(96, 165, 250, 0.4);
  transform: translateY(-3px);
}

.footer-social-link svg { width: 18px; height: 18px; }

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  position: relative;
  padding-left: 14px;
}

.footer-col h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--primary-light), var(--violet));
}

.footer-col li { margin-bottom: 11px; font-size: 14px; }

.footer-col a {
  display: inline-block;
  position: relative;
  transition: color var(--ease), transform var(--ease-out), padding-left var(--ease);
}

.footer-col a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 5px;
  border-radius: 50%;
  background: var(--primary-light);
  transition: width var(--ease);
}

.footer-col a:hover {
  color: var(--primary-light);
  transform: translateX(3px);
}

/* 底栏徽章：资质小图标 */
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
}

.footer-badge svg { width: 14px; height: 14px; color: var(--gold); flex-shrink: 0; }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  font-size: 13px;
  line-height: 1.6;
}

/* 版权与备案信息同一行展示，小屏自动换行 */
.footer-bottom-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 12px;
  max-width: 100%;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.55);
  white-space: nowrap;
}

.footer-meta-divider {
  color: rgba(255, 255, 255, 0.25);
  user-select: none;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 16px;
}

.footer-legal-link {
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  transition: color var(--ease);
  white-space: nowrap;
}

.footer-legal-link + .footer-legal-link {
  position: relative;
  padding-left: 16px;
}

.footer-legal-link + .footer-legal-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.18);
}

.footer-bottom a:hover,
.footer-legal-link:hover {
  color: var(--primary-light);
}

/* ---------- 通用区块 ---------- */
.page-main { padding-top: var(--header-h); }

.section { padding: var(--section-y) 0; }
.section-alt {
  background: var(--bg-soft);
  border-block: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto clamp(40px, 5vw, 56px);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 5px 14px 5px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-dark);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 999px;
}
.section-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
}

.section-eyebrow-light {
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
}
.section-eyebrow-light::before { background: var(--gold); }

.section-title {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  line-height: 1.22;
  margin-bottom: 16px;
  letter-spacing: -0.025em;
  color: var(--text);
}

.section-desc {
  font-size: clamp(15px, 1.6vw, 16px);
  color: var(--text-secondary);
  line-height: 1.78;
}

.section-footer-link {
  text-align: center;
  margin-top: 40px;
}

.bg-soft { background: var(--bg-soft); }

/* 滚动入场动画 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }

/* ---------- Hero（浅色主题） ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #f8faff 0%, #eef3ff 42%, #f0f9ff 72%, #faf8ff 100%);
  color: var(--text);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 45%, #000 25%, transparent 80%);
  animation: heroGridDrift 24s linear infinite;
}

@keyframes heroGridDrift {
  from { transform: translate(0, 0); }
  to { transform: translate(48px, 48px); }
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: heroGlowFloat 10s ease-in-out infinite;
}
.hero-glow-1 {
  width: 520px;
  height: 520px;
  top: -160px;
  right: -100px;
  background: #93c5fd;
  opacity: 0.45;
}
.hero-glow-2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -80px;
  background: #a5b4fc;
  opacity: 0.4;
  animation-delay: 1.5s;
}
.hero-glow-3 {
  width: 300px;
  height: 300px;
  top: 35%;
  left: 40%;
  background: #fde68a;
  opacity: 0.35;
  animation-delay: 0.8s;
}

@keyframes heroGlowFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-16px, 12px) scale(1.06); }
}

.hero-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(37, 99, 235, 0.12);
}
.hero-orbit-1 {
  width: min(680px, 90vw);
  height: min(680px, 90vw);
  top: 50%;
  right: -12%;
  transform: translateY(-50%);
  animation: heroOrbitSpin 32s linear infinite;
}
.hero-orbit-2 {
  width: min(480px, 70vw);
  height: min(480px, 70vw);
  top: 20%;
  left: -8%;
  opacity: 0.6;
  animation: heroOrbitSpinAlt 24s linear infinite;
}

@keyframes heroOrbitSpin {
  to { transform: translateY(-50%) rotate(360deg); }
}

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

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - var(--header-h) - 56px);
  padding: 64px 0 48px;
}

.hero-trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.trust-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 999px;
}
.trust-tag svg { width: 14px; height: 14px; color: var(--gold); }

.hero-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 999px;
}

.hero-title {
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

.hero-title > span {
  background: linear-gradient(135deg, var(--text) 0%, var(--primary-dark) 55%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title em {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 34px;
  max-width: 540px;
}
.hero-lead strong {
  color: var(--text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-metric {
  flex: 1;
  min-width: 110px;
  padding: 16px 14px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  transition: transform var(--ease-out), border-color var(--ease), box-shadow var(--ease);
}
.hero-metric:hover {
  transform: translateY(-3px);
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-md);
}

.hero-metric strong {
  display: block;
  font-size: clamp(22px, 2.5vw, 26px);
  font-weight: 800;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-metric span {
  font-size: 13px;
  color: var(--text-muted);
}

@media (prefers-reduced-motion: reduce) {
  .hero-grid-pattern,
  .hero-glow,
  .hero-orbit {
    animation: none;
  }
}

/* Hero 右侧展示 — 层叠卡片（对齐 shangzhan.com 三层 inset 叠放） */
.hero-showcase {
  position: relative;
  min-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 0;
}

.showcase-stack {
  position: relative;
  width: min(100%, 660px);
  margin: 0 auto;
}

/* 固定高度容器，三层卡片 absolute inset 叠放 */
.showcase-stack-frame {
  position: relative;
  width: 100%;
  height: 384px;
}

.stack-layer,
.stack-front {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  pointer-events: none;
}

.stack-layer-back-far {
  z-index: 1;
  background: linear-gradient(135deg, #fff 0%, #f1f5f9 100%);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
  transform: rotate(6deg);
}

.stack-layer-back-near {
  z-index: 2;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
  box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08);
  transform: rotate(-3deg);
}

.stack-front {
  z-index: 3;
  pointer-events: auto;
  background: #fff;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.14);
  overflow: hidden;
}

.showcase-slide {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px;
  text-align: center;
  color: var(--text);
  animation: showcaseFadeIn 0.55s ease;
}
.showcase-slide.is-active {
  display: flex;
}

/* 首屏：Logo 与名称并排，固定 30px 内边距 */
.showcase-slide-brand {
  /* 文字基准字号；Logo 单独放大，视觉更突出 */
  --brand-size: clamp(64px, 9.5vw, 86px);
  --brand-logo-size: calc(var(--brand-size) * 1.4);
  padding: 30px;
}
.showcase-slide-brand .showcase-brand-row {
  gap: calc(var(--brand-size) * 0.22);
  margin-bottom: 0;
}
.showcase-slide-brand .showcase-brand-logo {
  width: auto;
  height: var(--brand-logo-size);
  max-height: var(--brand-logo-size);
}
.showcase-slide-brand .showcase-brand-name {
  font-size: var(--brand-size);
  line-height: 1;
  letter-spacing: 0.04em;
}
.showcase-slide-brand .showcase-brand-slogan {
  margin: calc(var(--brand-size) * 0.35) 0 0;
  font-size: clamp(15px, 2.2vw, 18px);
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

@keyframes showcaseFadeIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.showcase-brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.showcase-brand-logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
  flex-shrink: 0;
}

.showcase-brand-name {
  font-size: clamp(28px, 4.5vw, 38px);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
  line-height: 1.15;
}

.showcase-slide-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.showcase-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 600;
  color: #16a34a;
  background: #f0fdf4;
  border-radius: 999px;
}
.showcase-status-pill i {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.showcase-mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
}
.showcase-mini-stats div {
  padding: 12px 8px;
  background: var(--bg-soft);
  border-radius: 12px;
}
.showcase-mini-stats span {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.showcase-mini-stats strong {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary-dark);
}

/* 第二屏：平台实力 — 三列指标卡片 */
.showcase-slide-stats {
  gap: 28px;
  padding: 36px 40px;
}

.showcase-stats-head {
  text-align: center;
}

.showcase-stats-eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--primary-dark);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(99, 102, 241, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 999px;
}

.showcase-stats-desc {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

.showcase-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  width: 100%;
}

.showcase-stat-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 108px;
  padding: 20px 10px 18px;
  text-align: center;
  background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 16px;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.07);
  overflow: hidden;
}

/* 顶部彩色条，区分三项指标 */
.showcase-stat-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #6366f1);
}

.showcase-stat-item:nth-child(2)::before {
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
}

.showcase-stat-item:nth-child(3)::before {
  background: linear-gradient(90deg, #0ea5e9, var(--primary));
}

.showcase-stat-item strong {
  display: block;
  font-size: clamp(26px, 3.5vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 8px;
  background: linear-gradient(180deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.showcase-stat-item span {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-muted);
}

/* 第三屏：核心优势 — 与平台实力统一的卡片列表 */
.showcase-slide-features {
  gap: 28px;
  padding: 36px 40px;
}

.showcase-features-head {
  text-align: center;
}

.showcase-features-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.showcase-feature-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
  border: 1px solid rgba(226, 232, 240, 0.95);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.06);
  text-align: left;
}

.showcase-feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  border-radius: 12px;
}

.showcase-feature-icon.icon-green {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  box-shadow: 0 6px 16px rgba(34, 197, 94, 0.28);
}

.showcase-feature-icon.icon-blue {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
}

.showcase-feature-icon.icon-violet {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.28);
}

.showcase-feature-text strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.3;
}

.showcase-feature-text span {
  display: block;
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-muted);
}

.showcase-feature-list {
  width: 100%;
  text-align: left;
}
.showcase-feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.showcase-feature-list li:last-child { border-bottom: none; }

.feat-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  border-radius: 50%;
  flex-shrink: 0;
}
.feat-green { background: #dcfce7; color: #16a34a; }
.feat-blue { background: #dbeafe; color: #2563eb; }
.feat-violet { background: #ede9fe; color: #7c3aed; }

.showcase-dots {
  position: relative;
  z-index: 4;
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.showcase-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.22);
  cursor: pointer;
  transition: all var(--ease);
}
.showcase-dot.is-active {
  width: 22px;
  border-radius: 999px;
  background: var(--primary);
}
.showcase-dot:hover {
  background: rgba(37, 99, 235, 0.45);
}

.hero-marquee {
  position: relative;
  z-index: 1;
  padding: 16px 0;
  background: rgba(37, 99, 235, 0.05);
  border-top: 1px solid rgba(37, 99, 235, 0.1);
  overflow: hidden;
}

.hero-marquee-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 72s linear infinite;
}
.hero-marquee-track span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

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

/* ---------- 信任背书条 ---------- */
.trust-bar {
  position: relative;
  z-index: 2;
  margin-top: -1px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 6px 28px rgba(15, 23, 42, 0.04);
}

.trust-bar-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.trust-bar-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(20px, 3vw, 28px) clamp(16px, 2.5vw, 24px);
  border-right: 1px solid var(--border);
  transition: background var(--ease);
}
.trust-bar-list li:hover {
  background: rgba(37, 99, 235, 0.02);
}
.trust-bar-list li:last-child { border-right: none; }

.trust-bar-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  border-radius: 12px;
  flex-shrink: 0;
  color: var(--primary);
}
.trust-bar-icon svg { width: 22px; height: 22px; }

.trust-bar-list strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}
.trust-bar-list span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ---------- 客户信任面板 ---------- */
.section-trust {
  padding-top: 88px;
  background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
}

.trust-panel {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 4vw, 48px);
  align-items: center;
  padding: clamp(32px, 4vw, 48px);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.trust-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 48px;
  bottom: 48px;
  width: 4px;
  background: linear-gradient(180deg, var(--gold), var(--primary));
  border-radius: 0 4px 4px 0;
}

.section-desc-left {
  text-align: left;
  margin: 0 0 24px;
  max-width: none;
}
.section-desc-left strong { color: var(--text); }

.trust-checklist {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.trust-checklist li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.trust-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%232563eb'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.trust-industry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.trust-industry-tags span {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all var(--ease);
}
.trust-industry-tags span:hover {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.25);
  background: rgba(37, 99, 235, 0.06);
}

.trust-panel-right {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.trust-quote-card {
  padding: 28px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--ease);
}
.trust-quote-card-alt {
  margin-left: 32px;
  background: linear-gradient(145deg, rgba(37, 99, 235, 0.06), rgba(99, 102, 241, 0.04));
  border-color: rgba(37, 99, 235, 0.15);
}
.trust-quote-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.quote-stars {
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.trust-quote-card p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.trust-quote-card footer strong {
  display: block;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 2px;
}
.trust-quote-card footer span {
  font-size: 12px;
  color: var(--text-muted);
}

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

/* ---------- 核心优势 ---------- */
.section-advantages {
  background: linear-gradient(180deg, #eef4ff 0%, #f8fafc 100%);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* 仅用透明度做入场，避免 transform 与悬停冲突 */
.advantage-card.reveal {
  transform: none;
}
.advantage-card.reveal.is-visible {
  transform: none;
}

.advantage-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 24px 32px;
  background: #fff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--ease-out), box-shadow var(--ease-out), border-color var(--ease);
  position: relative;
  overflow: hidden;
}

.advantage-index {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  color: rgba(37, 99, 235, 0.08);
  pointer-events: none;
  user-select: none;
}

.advantage-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 28px;
  width: 4px;
  border-radius: 0 4px 4px 0;
}

.advantage-card:nth-child(1)::before { background: linear-gradient(180deg, #2563eb, #60a5fa); }
.advantage-card:nth-child(2)::before { background: linear-gradient(180deg, #6366f1, #a78bfa); }
.advantage-card:nth-child(3)::before { background: linear-gradient(180deg, #0891b2, #22d3ee); }
.advantage-card:nth-child(4)::before { background: linear-gradient(180deg, #4f46e5, #818cf8); }

.advantage-card:hover {
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.13);
  transform: translateY(-8px);
  border-color: rgba(37, 99, 235, 0.15);
}
.advantage-card.reveal.is-visible:hover {
  transform: translateY(-8px);
}

.advantage-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border-radius: 18px;
  color: #fff;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.advantage-card:hover .advantage-icon {
  transform: scale(1.08) translateY(-3px);
}

.advantage-icon svg { width: 28px; height: 28px; }

.icon-blue {
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35);
}
.icon-violet {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  box-shadow: 0 12px 28px rgba(99, 102, 241, 0.35);
}
.icon-cyan {
  background: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
  box-shadow: 0 12px 28px rgba(6, 182, 212, 0.35);
}
.icon-indigo {
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
  box-shadow: 0 12px 28px rgba(79, 70, 229, 0.35);
}

.advantage-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
  color: var(--text);
}

.advantage-card p {
  flex: 1;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 0;
}

/* ---------- 首页解决方案卡片 ---------- */
.home-solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.home-solution-card {
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
  position: relative;
  overflow: hidden;
}
.home-solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease);
}
.home-solution-card:hover::before { opacity: 1; }
.home-solution-card:hover {
  border-color: rgba(37, 99, 235, 0.18);
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.home-solution-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background: var(--gradient-soft);
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: 12px;
  transition: transform var(--ease-out);
}
.home-solution-card:hover .home-solution-icon {
  transform: scale(1.06);
}

.home-solution-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.home-solution-card p {
  flex: 1;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
}

.card-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--ease-out), color var(--ease);
}
.home-solution-card:hover .card-more {
  gap: 8px;
  color: var(--primary-dark);
}

/* ---------- 服务项目 ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  padding: 26px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}
.service-card:hover {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 24px;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: 50%;
  transition: background var(--ease), border-color var(--ease), transform var(--ease-out);
}
.service-card:hover .service-icon {
  background: var(--gradient-soft);
  border-color: rgba(37, 99, 235, 0.12);
  transform: scale(1.05);
}

.service-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.service-card p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- 合作伙伴（三行循环滚动） ---------- */
.section-partners {
  background: #fff;
  overflow: hidden;
}

.partner-marquee-wrap {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 8px;
  padding: 8px 0 4px;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 3%,
    #000 97%,
    transparent 100%
  );
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 3%,
    #000 97%,
    transparent 100%
  );
}

.partner-marquee-wrap .partner-row {
  overflow: hidden;
  width: 100%;
}

.partner-marquee-wrap .partner-row-track {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 16px;
  width: max-content;
  will-change: transform;
}

.partner-marquee-wrap .partner-row.is-ready .partner-row-track {
  animation: partner-marquee-left var(--marquee-duration, 75s) linear infinite;
}

.partner-marquee-wrap .partner-row.is-ready.is-reverse .partner-row-track {
  animation-name: partner-marquee-right;
}

.partner-marquee-wrap .partner-row.is-ready .partner-row-track:hover {
  animation-play-state: paused;
}

@keyframes partner-marquee-left {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-1 * var(--marquee-distance, 50%))); }
}

@keyframes partner-marquee-right {
  from { transform: translateX(calc(-1 * var(--marquee-distance, 50%))); }
  to { transform: translateX(0); }
}

.partner-cell {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 152px;
  min-height: 68px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease-out);
}

.partner-cell:hover {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  padding: 8px 10px;
  background: #fff;
  border-radius: 8px;
}

.partner-logo img {
  display: block;
  max-width: 100%;
  max-height: 26px;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.88;
  transition: opacity var(--ease);
}

.partner-cell:hover .partner-logo img {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .partner-marquee-wrap .partner-row-track {
    animation: none;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 20px;
  }
  .partner-marquee-wrap {
    -webkit-mask-image: none;
    mask-image: none;
  }
}

/* ---------- 企业资质 ---------- */
.section-certs {
  background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 50%, #fff 100%);
  border-block: 1px solid var(--border-light);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 36px 24px 32px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
  overflow: hidden;
}

/* 顶部品牌色条，hover 时显示 */
.cert-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease);
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.15);
}

.cert-card:hover::before {
  opacity: 1;
}

/* 图标容器：渐变底色 + SVG，替代 emoji */
.cert-icon-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border-radius: 16px;
  color: #fff;
  transition: transform var(--ease-out);
}

.cert-card:hover .cert-icon-wrap {
  transform: scale(1.06) translateY(-2px);
}

.cert-icon-wrap svg {
  width: 26px;
  height: 26px;
}

.cert-icon-blue {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
}

.cert-icon-violet {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.28);
}

.cert-icon-gold {
  background: linear-gradient(135deg, #b8860b, #d4af37);
  box-shadow: 0 8px 20px rgba(201, 162, 39, 0.28);
}

.cert-icon-cyan {
  background: linear-gradient(135deg, #0891b2, #06b6d4);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.28);
}

/* 右上角资质标签 */
.cert-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
  background: var(--gold-soft);
  border: 1px solid rgba(201, 162, 39, 0.28);
  border-radius: 999px;
}

.cert-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
  letter-spacing: 0.01em;
}

.cert-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 220px;
}

/* ---------- 首页联系区块 ---------- */
.section-contact { padding-bottom: 100px; }

.contact-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 4vw, 48px);
  align-items: center;
  padding: clamp(40px, 5vw, 56px) clamp(32px, 5vw, 64px);
  background: linear-gradient(135deg, var(--hero-from) 0%, #152a52 48%, var(--hero-mid) 100%);
  border-radius: var(--radius-xl);
  color: #fff;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.07);
  position: relative;
  overflow: hidden;
}
.contact-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(201, 162, 39, 0.12), transparent 70%);
  pointer-events: none;
}
.contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 50%, #000 20%, transparent 75%);
  pointer-events: none;
}

.contact-banner-text,
.contact-banner-info {
  position: relative;
  z-index: 1;
}

.contact-banner h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.contact-banner-text p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.75;
}

.contact-banner-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-banner-item .label {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 4px;
}
.contact-banner-item strong {
  font-size: 20px;
  font-weight: 700;
}

/* ---------- 旧版兼容（内页） ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}
.feature-card:hover {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.feature-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 18px;
  background: var(--gradient-soft);
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-md);
  transition: transform var(--ease-out);
}
.feature-card:hover .feature-icon { transform: scale(1.06); }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.78; }

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card {
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--ease);
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(37, 99, 235, 0.2); }
.product-icon { font-size: 40px; margin-bottom: 16px; }
.product-card h3 { font-size: 16px; margin-bottom: 8px; }
.product-card p { font-size: 13px; color: var(--text-muted); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
  position: relative;
}

/* 桌面端时间线连接线 */
@media (min-width: 769px) {
  .steps-grid::before {
    content: "";
    position: absolute;
    top: 48px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), rgba(37, 99, 235, 0.25), rgba(37, 99, 235, 0.08));
    z-index: 0;
  }
}

.step-card {
  position: relative;
  z-index: 1;
  padding: 94px 22px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  text-align: center;
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(37, 99, 235, 0.18);
}

/* 数字徽章：默认白底圆环，hover 时文字变白，渐变由 ::after 垫在下方 */
.step-card::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  background: #fff;
  border: none;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15), 0 4px 12px rgba(37, 99, 235, 0.1);
  transition: color var(--ease), background var(--ease), box-shadow var(--ease);
  z-index: 2;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* 渐变底层：略大于数字圆，避免抗锯齿黑边 */
.step-card::after {
  content: "";
  position: absolute;
  top: 27px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-brand);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition: opacity var(--ease);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.step-card:hover::before {
  background: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.22);
}

.step-card:hover::after {
  opacity: 1;
}

.step-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.step-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

.cta-section { padding: clamp(56px, 6vw, 80px) 0; }

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 32px);
  padding: clamp(40px, 5vw, 56px) clamp(32px, 5vw, 64px);
  background: linear-gradient(135deg, var(--hero-from) 0%, #152a52 55%, var(--hero-mid) 100%);
  border-radius: var(--radius-xl);
  color: #fff;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.07);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 70% 80% at 80% 50%, #000 15%, transparent 70%);
  pointer-events: none;
}

.cta-box > * {
  position: relative;
  z-index: 1;
}

.cta-box h2 {
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.cta-box p { opacity: 0.88; font-size: clamp(14px, 1.6vw, 16px); line-height: 1.75; }
.cta-actions { display: flex; gap: 14px; flex-shrink: 0; flex-wrap: wrap; }

.page-banner {
  position: relative;
  padding: clamp(64px, 8vw, 88px) 0 clamp(56px, 6vw, 72px);
  background: linear-gradient(145deg, var(--hero-from), var(--hero-mid));
  color: #fff;
  text-align: center;
  overflow: hidden;
}

/* 内页 Banner 网格纹理，与首页 Hero 视觉语言统一 */
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 85%);
  pointer-events: none;
}

.page-banner::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: clamp(30px, 3.8vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.page-banner p {
  font-size: clamp(15px, 1.8vw, 17px);
  opacity: 0.86;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.75;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
  padding: 6px 16px;
  font-size: 13px;
  opacity: 0.82;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.breadcrumb a {
  transition: opacity var(--ease);
}
.breadcrumb a:hover {
  opacity: 1;
  text-decoration: none;
}

/* ---------- 内页主题背景（解决方案 / 服务项目 / 关于我们） ---------- */
body[data-nav="solutions"] {
  --page-bg: #eff6ff;
  --page-bg-soft: #dbeafe;
  --page-banner-to: #1e3a8a;
}

body[data-nav="products"] {
  --page-bg: #ecfdf5;
  --page-bg-soft: #d1fae5;
  --page-banner-to: #065f46;
}

body[data-nav="about"] {
  --page-bg: #f5f3ff;
  --page-bg-soft: #ede9fe;
  --page-banner-to: #5b21b6;
}

body[data-nav="contact"] {
  --page-bg: #f0f9ff;
  --page-bg-soft: #e0f2fe;
  --page-banner-to: #0c4a6e;
}

body[data-nav="contact"] .page-banner {
  background: linear-gradient(145deg, var(--hero-from) 0%, var(--page-banner-to) 100%);
}

body[data-nav="contact"] .page-main {
  background: var(--page-bg);
}

body[data-nav="contact"] .page-main > .section:not(.cta-section) {
  background: var(--page-bg);
}

body[data-nav="solutions"] .page-banner,
body[data-nav="products"] .page-banner,
body[data-nav="about"] .page-banner,
body[data-nav="contact"] .page-banner {
  background: linear-gradient(145deg, var(--hero-from) 0%, var(--page-banner-to, var(--hero-mid)) 100%);
}

body[data-nav="solutions"] .page-main,
body[data-nav="products"] .page-main,
body[data-nav="about"] .page-main {
  background: var(--page-bg);
}

body[data-nav="solutions"] .page-main > .section:not(.cta-section):not(.bg-soft),
body[data-nav="products"] .page-main > .section:not(.cta-section):not(.bg-soft),
body[data-nav="about"] .page-main > .section:not(.cta-section):not(.bg-soft) {
  background: #fff;
}

body[data-nav="solutions"] .page-main > .section.bg-soft,
body[data-nav="products"] .page-main > .section.bg-soft,
body[data-nav="about"] .page-main > .section.bg-soft {
  background: var(--page-bg-soft);
}

/* 服务项目页仅一块内容区，使用主题浅色底 */
body[data-nav="products"] .page-main > .section:not(.cta-section) {
  background: var(--page-bg-soft);
}

body[data-nav="solutions"] .cta-section,
body[data-nav="products"] .cta-section,
body[data-nav="about"] .cta-section {
  background: var(--page-bg);
}

.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 5vw, 64px); align-items: center; }
.about-intro-text h2 {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.about-intro-text p { color: var(--text-secondary); margin-bottom: 16px; line-height: 1.85; font-size: 15px; }

.about-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.metric-card {
  padding: 24px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  text-align: center;
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}
.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(37, 99, 235, 0.18);
}

.metric-card strong {
  display: block;
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.metric-card span { font-size: 13px; color: var(--text-secondary); }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.value-card {
  padding: 32px 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(37, 99, 235, 0.15);
}
.value-card:hover::before { opacity: 1; }

.value-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; color: var(--primary-dark); }
.value-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.78; }

.category-block { margin-bottom: clamp(48px, 6vw, 64px); }

.category-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 24px; padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.category-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

.category-header span {
  font-size: 32px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.category-header h2 { font-size: clamp(20px, 2.4vw, 24px); font-weight: 800; letter-spacing: -0.01em; }
.category-header p { font-size: 14px; color: var(--text-muted); margin-top: 4px; line-height: 1.6; }

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

.goods-item {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}

.goods-item:hover {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.goods-item-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background var(--ease), border-color var(--ease);
}

.goods-item:hover .goods-item-icon {
  background: var(--gradient-soft);
  border-color: rgba(37, 99, 235, 0.1);
}

.goods-item h4 { font-size: 14px; font-weight: 700; margin-bottom: 3px; }
.goods-item p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.solution-card {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--ease);
}

.solution-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.18);
  transform: translateY(-4px);
}
.solution-card:hover::before { opacity: 1; }

.solution-card > p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.78;
  margin-bottom: 16px;
}

.solution-card-header { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px; }

.solution-card-icon {
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  background: var(--gradient-soft);
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  transition: transform var(--ease-out);
}

.solution-card:hover .solution-card-icon { transform: scale(1.05); }

.solution-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.01em; }

.solution-card .tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 999px;
}

.solution-card ul {
  margin-top: 4px;
}

.solution-card li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 9px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.solution-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2306b6d4'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 4vw, 48px); align-items: start; }

.contact-info h2 {
  font-size: clamp(24px, 2.8vw, 28px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.contact-info > p { color: var(--text-secondary); margin-bottom: 28px; line-height: 1.78; font-size: 15px; }

.contact-item {
  display: flex;
  gap: 18px;
  margin-bottom: 20px;
  align-items: center;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  transition: transform var(--ease-out), box-shadow var(--ease), border-color var(--ease);
}

.contact-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  border-color: rgba(37, 99, 235, 0.15);
}

.contact-item-icon {
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  background: var(--gradient-soft);
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-item h4 { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.contact-item p { font-size: 17px; font-weight: 600; color: var(--text); line-height: 1.4; }

/* 在线客服：跳转后台配置的客服地址 */
.contact-item-link {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--ease);
}
.contact-item-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* 联系我们 — 右侧微信二维码（渐变顶栏 + 悬浮二维码） */
.contact-wechat-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  background: #fff;
  transition: box-shadow var(--ease);
}

.contact-wechat-panel:hover {
  box-shadow: var(--shadow-md);
}

.contact-wechat-hero {
  position: relative;
  padding: 28px 24px 24px;
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 48%, #6366f1 100%);
}

/* 顶栏装饰光斑 */
.contact-wechat-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.18) 0%, transparent 42%),
    radial-gradient(circle at 85% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 38%);
  pointer-events: none;
}

.contact-wechat-hero h3 {
  position: relative;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-wechat-hero p {
  position: relative;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
  max-width: 300px;
  margin: 0 auto;
}

.contact-wechat-body {
  padding: 24px 28px 28px;
  text-align: center;
}

.contact-wechat-qr-wrap {
  margin: 0 auto;
  width: fit-content;
  cursor: default;
}

.contact-wechat-qr-frame {
  padding: 10px;
  background: #fff;
  border-radius: 20px;
  box-shadow: none;
  border: 1px solid rgba(226, 232, 240, 0.95);
  transition: box-shadow 0.3s ease;
}

.contact-wechat-qr-wrap:hover .contact-wechat-qr-frame {
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14);
}

.contact-wechat-qr-frame img {
  display: block;
  width: 256px;
  height: 256px;
  object-fit: contain;
  border-radius: 14px;
}

.contact-wechat-scan {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  color: #059669;
  letter-spacing: 0.06em;
  background: rgba(7, 193, 96, 0.08);
  border: 1px solid rgba(7, 193, 96, 0.18);
  border-radius: 999px;
}

.contact-wechat-scan::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #07c160;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(7, 193, 96, 0.5);
}

.contact-wechat-tips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.contact-wechat-tips li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: none;
  transition: box-shadow 0.25s ease;
}

.contact-wechat-tips li:hover {
  box-shadow: var(--shadow-xs);
}

.contact-wechat-tips li span {
  font-size: 12px;
  font-weight: 800;
  color: var(--primary);
}

/* ---------- SEO 内容区：关键词正文、FAQ、内链 ---------- */
.seo-content {
  max-width: 880px;
  margin: 0 auto;
}

.seo-content h2 {
  font-size: clamp(22px, 3vw, 28px);
  margin-bottom: 16px;
  color: var(--text);
}

.seo-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.seo-content p:last-child { margin-bottom: 0; }

.seo-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.seo-content a:hover { color: var(--primary-dark); }

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  padding: 22px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}

.section-alt .faq-item {
  background: #fff;
}

.faq-question {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.5;
}

.faq-answer {
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.related-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.related-link-card {
  display: block;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease-out);
}

.related-link-card:hover {
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.related-link-card strong {
  display: block;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 6px;
}

.related-link-card span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}


.contact-form {
  padding: 40px; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; font-size: 15px; font-family: inherit;
  border: 1px solid #cbd5e1; border-radius: var(--radius-sm);
  transition: border-color var(--ease), box-shadow var(--ease);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-tip { margin-top: 12px; font-size: 13px; color: var(--text-muted); }
.form-success {
  display: none; padding: 16px; margin-bottom: 20px;
  background: #f0fdf4; border: 1px solid #86efac;
  border-radius: var(--radius-sm); color: #15803d; font-size: 14px;
}
.form-success.is-visible { display: block; }

.partner-badge-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.partner-badge {
  padding: 12px 24px; font-size: 14px; color: var(--text-secondary);
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px 5px 12px;
  margin-bottom: 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-dark);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 999px;
}

.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
  .home-solution-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .hero-inner, .about-intro, .contact-grid, .contact-banner, .trust-panel {
    grid-template-columns: 1fr;
  }
  .trust-bar-list { grid-template-columns: repeat(2, 1fr); }
  .trust-bar-list li:nth-child(2) { border-right: none; }
  .trust-bar-list li { border-bottom: 1px solid var(--border); }
  .trust-quote-card-alt { margin-left: 0; }
  .hero-showcase { display: none; }
  .feature-grid, .values-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .goods-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: clamp(56px, 12vw, 72px) 0; }

  .header-inner {
    gap: 10px;
  }

  /* 手机端隐藏副标题，给右侧按钮留出空间 */
  .logo-slogan {
    display: none;
  }

  /* 导航菜单改为浮层，不占顶栏横向空间 */
  .site-header nav {
    position: static;
    flex: 0 0 0;
    width: 0;
    overflow: visible;
  }

  .nav-list {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; padding: 16px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%); opacity: 0; visibility: hidden;
    transition: all var(--ease);
    z-index: 999;
  }
  .nav-list.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-list a { display: block; width: 100%; padding: 12px 16px; }

  .header-actions {
    gap: 8px;
    margin-left: auto;
  }

  .menu-toggle {
    display: flex;
    flex-shrink: 0;
  }

  /* 手机端保留「立即注册/登录」，隐藏电话与「立即咨询」 */
  .header-phone,
  .btn-text {
    display: none;
  }

  .btn-header {
    display: inline-flex;
    padding: 8px 14px;
    font-size: 13px;
    white-space: nowrap;
  }

  .advantage-grid, .home-solution-grid, .service-grid, .product-grid,
  .steps-grid, .values-grid, .goods-list, .solution-grid,
  .footer-grid, .cert-grid, .feature-grid, .trust-bar-list {
    grid-template-columns: 1fr;
  }
  .trust-bar-list li { border-right: none; }
  .trust-panel { padding: 28px 20px; }

  .cta-box, .contact-banner {
    flex-direction: column; text-align: center;
    padding: 36px 24px;
  }
  .cta-actions { flex-direction: column; width: 100%; justify-content: center; }
  .cta-actions .btn { width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .hero-metrics { flex-direction: column; }
  .footer-bottom { gap: 10px; }
  .footer-bottom-meta { flex-direction: column; gap: 6px; }
  .footer-meta-divider { display: none; }
  .footer-legal-link + .footer-legal-link { padding-left: 0; }
  .footer-legal-link + .footer-legal-link::before { display: none; }

  .related-links-grid { grid-template-columns: 1fr; }

  .partner-cell { width: 128px; min-height: 60px; }

  .contact-item:hover { transform: none; }

  .steps-grid::before { display: none; }
}

/* 仅供爬虫与读屏器读取，视觉上隐藏 */
.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;
}

.seo-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}