/* =====================================================
   昆山无为智能制造科技有限公司 官方网站
   主样式表 v2 - 专业级企业门户（精修版）
   ===================================================== */

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* 主色：深邃工业蓝 */
  --color-primary: #0a3d8f;
  --color-primary-dark: #082c66;
  --color-primary-light: #1f5dba;
  --color-primary-soft: #eaf1fb;
  /* 辅色：暖橙 */
  --color-accent: #ff6a00;
  --color-accent-dark: #e25a00;
  --color-accent-soft: #fff1e6;
  /* 第三色：青蓝点缀 */
  --color-cyan: #06b6d4;

  /* 中性 */
  --color-text: #1a202c;
  --color-text-soft: #4a5568;
  --color-muted: #6b7280;
  --color-border: #e6e8ee;
  --color-border-soft: #f0f2f6;
  --color-bg: #ffffff;
  --color-bg-soft: #f6f8fc;
  --color-bg-dark: #0a1628;

  /* 渐变 */
  --grad-primary: linear-gradient(135deg, #0a3d8f 0%, #1f5dba 100%);
  --grad-hero:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(31,93,186,.55) 0%, transparent 60%),
    radial-gradient(ellipse 70% 60% at 80% 70%, rgba(255,106,0,.30) 0%, transparent 60%),
    linear-gradient(135deg, #061a3a 0%, #0a2a5e 50%, #0a3d8f 100%);
  --grad-accent: linear-gradient(135deg, #ff8a3d 0%, #ff6a00 100%);
  --grad-text: linear-gradient(135deg, #1f5dba 0%, #ff6a00 100%);

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
  --shadow-xl: 0 30px 80px rgba(15, 23, 42, .18);
  --shadow-glow: 0 10px 40px rgba(10, 61, 143, .35);
  --shadow-glow-orange: 0 10px 40px rgba(255, 106, 0, .35);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --header-h: 78px;
  --container: 1240px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --transition: .3s var(--ease);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans CN",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary); }

ul { list-style: none; }

button { font: inherit; cursor: pointer; }

::selection { background: var(--color-primary); color: #fff; }

/* 滚动条美化（webkit） */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #f1f3f7; }
::-webkit-scrollbar-thumb { background: #c5cdd9; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用：滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal.delay-1 { transition-delay: .1s; }
.reveal.delay-2 { transition-delay: .2s; }
.reveal.delay-3 { transition-delay: .3s; }
.reveal.delay-4 { transition-delay: .4s; }
.reveal.delay-5 { transition-delay: .5s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,.78);
  font-size: 12.5px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
}
.topbar a { color: inherit; }
.topbar a:hover { color: #fff; }
.topbar .meta { display: flex; gap: 18px; align-items: center; }
.topbar .meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- 头部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition), background var(--transition), border-color var(--transition);
}
.site-header.is-stuck {
  background: rgba(255,255,255,.98);
  border-bottom-color: var(--color-border);
  box-shadow: 0 6px 20px rgba(15,23,42,.06);
}
.site-header .container {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  transition: opacity var(--transition);
}
.brand:hover { opacity: .85; }
.brand .logo {
  width: 50px; height: 50px;
  flex-shrink: 0;
  filter: drop-shadow(0 6px 14px rgba(10,61,143,.25));
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: .5px;
}
.brand-en {
  font-size: 10.5px;
  color: var(--color-muted);
  letter-spacing: 2.4px;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 1px;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 4px;
  width: 0; height: 2px;
  background: var(--grad-accent);
  border-radius: 2px;
  transition: all var(--transition);
  transform: translateX(-50%);
}
.nav a:hover { color: var(--color-primary); }
.nav a:hover::after { width: 24px; }
.nav a.active { color: var(--color-primary); font-weight: 600; }
.nav a.active::after { width: 24px; }

/* 移动端汉堡 */
.menu-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  align-items: center; justify-content: center;
  transition: all var(--transition);
}
.menu-toggle:hover { border-color: var(--color-primary); }
.menu-toggle span {
  width: 20px; height: 2px;
  background: var(--color-text);
  position: relative;
  transition: all var(--transition);
}
.menu-toggle span::before,
.menu-toggle span::after {
  content: ""; position: absolute; left: 0; right: 0;
  height: 2px; background: var(--color-text);
  transition: all var(--transition);
}
.menu-toggle span::before { top: -7px; }
.menu-toggle span::after  { top:  7px; }
.menu-toggle.open span { background: transparent; }
.menu-toggle.open span::before { top: 0; transform: rotate(45deg); }
.menu-toggle.open span::after  { top: 0; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: clamp(540px, 78vh, 720px);
  background: var(--grad-hero);
  color: #fff;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 75%);
  pointer-events: none;
  z-index: -1;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--color-bg));
  z-index: 1;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
  padding-top: 40px;
  padding-bottom: 40px;
}

.hero-inner { max-width: 660px; }
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,106,0,.16);
  border: 1px solid rgba(255,106,0,.55);
  color: #ffd5b3;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 2px;
  margin-bottom: 24px;
  font-weight: 500;
}
.hero .eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(255,106,0,.3);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(255,106,0,.3); }
  50% { box-shadow: 0 0 0 6px rgba(255,106,0,.1); }
}

.hero h1 {
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.hero h1 strong {
  background: linear-gradient(135deg, #ffb05c 0%, #ff6a00 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.hero p {
  font-size: clamp(14px, 1.4vw, 17px);
  color: rgba(255,255,255,.82);
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.85;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }

/* Hero 信任徽标 */
.hero-trust {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-trust-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero-trust-num {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
}
.hero-trust-num small { font-size: .55em; opacity: .8; margin-left: 2px; }
.hero-trust-label {
  font-size: 12px;
  color: rgba(255,255,255,.6);
  letter-spacing: 1px;
}

/* Hero 视觉区 - 多图拼贴布局 */
.hero-showcase {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin-left: auto;
  min-height: 420px;
}

.hero-main-img {
  position: relative;
  width: 88%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.4);
  border: 2px solid rgba(255,255,255,.15);
}
.hero-main-img img {
  width: 100%;
  display: block;
}
.hero-main-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,30,80,.5) 100%);
  pointer-events: none;
}

.hero-side-imgs {
  position: absolute;
  right: 0;
  top: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 2;
}
.hero-side-img {
  width: 140px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(0,0,0,.35);
  border: 2px solid rgba(255,255,255,.2);
  transition: transform var(--transition);
}
.hero-side-img:hover { transform: scale(1.05); }
.hero-side-img img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  display: block;
}

/* 浮动数据卡片 */
.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
  z-index: 3;
  animation: float 6s ease-in-out infinite;
}
.hfc-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--grad-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hfc-icon-orange { background: var(--grad-accent); }
.hfc-icon-cyan { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.hfc-text { display: flex; flex-direction: column; line-height: 1.2; }
.hfc-num {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
}
.hfc-label {
  font-size: 11px;
  color: var(--color-muted);
  font-weight: 500;
}

.hfc-1 { bottom: 60px; left: -20px; animation-delay: 0s; }
.hfc-2 { bottom: -10px; left: 30%; animation-delay: -2s; }
.hfc-3 { top: 0; right: 10px; animation-delay: -4s; }

/* 装饰元素 */
.hero-deco-line {
  position: absolute;
  top: 50%; left: -30px;
  width: 60px; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255,106,0,.6), transparent);
  transform: translateY(-50%);
}
.hero-deco-dot {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
.hero-deco-dot.d1 { top: 15%; left: 5%; background: var(--color-accent); animation-delay: 0s; }
.hero-deco-dot.d2 { bottom: 25%; right: 5%; background: #06b6d4; animation-delay: -1s; }
.hero-deco-dot.d3 { top: 60%; left: -15px; background: #fff; opacity: .6; animation-delay: -2s; }

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

/* 滚动指示 */
.scroll-down {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.7);
  font-size: 11px;
  letter-spacing: 2px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
  text-transform: uppercase;
}
.scroll-down .line {
  width: 1px; height: 36px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,.6));
  position: relative;
  overflow: hidden;
}
.scroll-down .line::after {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 1px; height: 12px;
  background: var(--color-accent);
  animation: scrollLine 2s var(--ease-out) infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateY(100%); opacity: 0; }
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: "→";
  transition: transform var(--transition);
}
.btn-no-arrow::after { display: none; }
.btn:hover::after { transform: translateX(3px); }

.btn-primary {
  background: var(--grad-accent);
  color: #fff;
  box-shadow: var(--shadow-glow-orange);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(255,106,0,.45);
}
.btn-ghost {
  background: rgba(255,255,255,.05);
  color: #fff;
  border-color: rgba(255,255,255,.4);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.14);
  color: #fff;
  border-color: #fff;
}
.btn-outline {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ---------- 章节通用 ---------- */
.section { padding: clamp(64px, 9vw, 110px) 0; position: relative; }
.section-soft { background: var(--color-bg-soft); }
.section-dark {
  background: var(--color-bg-dark);
  color: #fff;
}
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head h2 .accent { color: var(--color-accent); }
.section-dark .section-head .desc { color: rgba(255,255,255,.65); }

.section-head { text-align: center; margin-bottom: 60px; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 12.5px;
  color: var(--color-accent);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 700;
  position: relative;
  padding: 0 30px;
}
.section-head .eyebrow::before,
.section-head .eyebrow::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 22px; height: 1px;
  background: var(--color-accent);
  opacity: .4;
}
.section-head .eyebrow::before { left: 0; }
.section-head .eyebrow::after  { right: 0; }
.section-head h2 {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  margin-top: 12px;
  color: var(--color-text);
  letter-spacing: 1px;
}
.section-head h2 .accent { color: var(--color-primary); }
.section-head .desc {
  margin-top: 16px;
  color: var(--color-text-soft);
  max-width: 720px;
  margin-left: auto; margin-right: auto;
  font-size: 15px;
}
.section-head .divider {
  width: 56px; height: 3px;
  background: var(--grad-accent);
  margin: 18px auto 0;
  border-radius: 2px;
}

/* ---------- 数据条 ---------- */
.stats {
  background: var(--grad-primary);
  color: #fff;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,.08), transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(255,106,0,.12), transparent 40%);
}
.stats::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 100% 40px;
  pointer-events: none;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.stat-item { position: relative; }
.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -15px; top: 20%; bottom: 20%;
  width: 1px;
  background: rgba(255,255,255,.15);
}
.stat-num {
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 800;
  line-height: 1;
  color: #fff;
  display: inline-flex;
  align-items: baseline;
  font-variant-numeric: tabular-nums;
}
.stat-num small { font-size: .5em; margin-left: 4px; opacity: .85; font-weight: 600; }
.stat-label {
  margin-top: 10px;
  font-size: 13.5px;
  color: rgba(255,255,255,.78);
  letter-spacing: 1px;
}

/* ---------- 关于公司 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 70px;
  align-items: center;
}
.about-visual {
  position: relative;
  aspect-ratio: 4/3.2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-primary);
  box-shadow: var(--shadow-xl);
}
.about-visual::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,.20), transparent 50%),
    radial-gradient(circle at 75% 80%, rgba(255,106,0,.30), transparent 55%);
}
.about-visual::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 32px 32px;
}
.about-visual svg {
  width: 70%; height: 70%;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: .95;
  z-index: 1;
}

/* 浮在 about visual 上的 stat 卡 */
.about-floats {
  position: absolute;
  z-index: 2;
}
.about-float-tl {
  top: 22px; left: 22px;
  background: rgba(255,255,255,.96);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex; gap: 10px; align-items: center;
}
.about-float-tl .ico {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--grad-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.about-float-tl .label { font-size: 11px; color: var(--color-muted); }
.about-float-tl .val { font-size: 16px; font-weight: 700; color: var(--color-primary); }

.about-float-br {
  bottom: 22px; right: 22px;
  background: var(--color-accent);
  color: #fff;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glow-orange);
  font-weight: 700;
}
.about-float-br small { display: block; font-size: 11px; opacity: .9; font-weight: 500; }
.about-float-br .big { font-size: 22px; line-height: 1; margin-top: 2px; }

.about-text h3 {
  font-size: 28px;
  margin-bottom: 18px;
  color: var(--color-text);
  font-weight: 800;
  line-height: 1.35;
}
.about-text h3 span {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-text p {
  color: var(--color-text-soft);
  margin-bottom: 14px;
}
.about-points {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
}
.about-points li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14.5px;
  color: var(--color-text);
}
.about-points li::before {
  content: "✓";
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}

/* ---------- 产品/服务卡 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex; flex-direction: column;
  position: relative;
  isolation: isolate;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 1;
}
.card:hover {
  transform: translateY(-8px);
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}
.card:hover::before { opacity: 1; }

.card-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #1f5dba 0%, #0a3d8f 100%);
  position: relative;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.9);
  overflow: hidden;
}
.card-thumb svg {
  width: 36%; height: 36%;
  position: relative;
  z-index: 1;
  transition: transform .6s var(--ease-out);
}
.card-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 3;
  transition: transform .6s var(--ease-out);
}
.card:hover .card-thumb svg,
.card:hover .card-thumb img { transform: scale(1.06); }
.card-thumb::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.04) 0 6px, transparent 6px 16px);
}
.card-thumb::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.08), transparent 55%);
}
.card-thumb.alt-1 { background: linear-gradient(135deg, #0a3d8f 0%, #143a7a 100%); }
.card-thumb.alt-2 { background: linear-gradient(135deg, #1f5dba 0%, #4a90e2 100%); }
.card-thumb.alt-3 { background: linear-gradient(135deg, #ff8a3d 0%, #d44a00 100%); }
.card-thumb.alt-4 { background: linear-gradient(135deg, #2c5282 0%, #1f3a5f 100%); }
.card-thumb.alt-5 { background: linear-gradient(135deg, #5a67d8 0%, #2c5282 100%); }
.card-thumb.alt-6 { background: linear-gradient(135deg, #2d3748 0%, #0a1628 100%); }

.card-tag {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(255,255,255,.95);
  color: var(--color-primary);
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  letter-spacing: 1px;
  z-index: 4;
}
.card-body {
  padding: 26px 24px 24px;
  flex: 1;
  display: flex; flex-direction: column;
  position: relative;
  z-index: 2;
  background: #fff;
}
.card-body h4 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--color-text);
  font-weight: 700;
}
.card-body p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  flex: 1;
  margin-bottom: 16px;
  line-height: 1.7;
}
.card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex; align-items: center; gap: 6px;
  align-self: flex-start;
}
.card-link::after { content: "→"; transition: transform var(--transition); }
.card:hover .card-link { color: var(--color-accent); }
.card:hover .card-link::after { transform: translateX(4px); }

/* ---------- 优势/特点 ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease-out);
}
.feature::after {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: var(--grad-primary);
  opacity: 0;
  border-radius: 50%;
  transition: opacity var(--transition);
  filter: blur(40px);
}
.feature:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.feature:hover::before { transform: scaleX(1); }
.feature:hover::after { opacity: .12; }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
  position: relative;
  transition: all var(--transition);
}
.feature:hover .feature-icon {
  background: var(--grad-primary);
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}
.feature h4 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--color-text);
  font-weight: 700;
  position: relative;
}
.feature p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.75;
  position: relative;
}

/* ---------- 服务流程 ---------- */
.workflow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.workflow::before {
  content: "";
  position: absolute;
  top: 38px;
  left: 12.5%; right: 12.5%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-border) 0 8px, transparent 8px 14px);
}
.workflow-step {
  text-align: center;
  position: relative;
}
.workflow-step .step-icon {
  width: 78px; height: 78px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--color-primary-soft);
  display: inline-flex;
  align-items: center; justify-content: center;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
  color: var(--color-primary);
  transition: all var(--transition);
}
.workflow-step:hover .step-icon {
  background: var(--grad-primary);
  border-color: transparent;
  color: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.workflow-step .step-num {
  position: absolute;
  top: -8px; right: -8px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
}
.workflow-step h5 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}
.workflow-step p {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.7;
  padding: 0 10px;
}

/* ---------- 解决方案/应用 ---------- */
.apps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.app {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, #0a3d8f, #143a7a);
  color: #fff;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition);
  isolation: isolate;
}
.app::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, transparent 35%, rgba(0,0,0,.78) 100%),
    radial-gradient(circle at 50% 30%, rgba(255,255,255,.12), transparent 60%);
  z-index: 1;
}
.app::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,.04) 0 6px, transparent 6px 16px);
  z-index: 1;
  opacity: .8;
}
.app:nth-child(1) { background: linear-gradient(135deg, #0a3d8f, #082c66); }
.app:nth-child(2) { background: linear-gradient(135deg, #1f5dba, #082c66); }
.app:nth-child(3) { background: linear-gradient(135deg, #ff8a3d, #b03e00); }
.app:nth-child(4) { background: linear-gradient(135deg, #2c5282, #0a3d8f); }
.app:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.app-content { position: relative; z-index: 2; }
.app-num {
  font-size: 13px;
  letter-spacing: 4px;
  opacity: .55;
  margin-bottom: 8px;
  font-weight: 600;
}
.app h5 {
  font-size: 19px;
  margin-bottom: 8px;
  font-weight: 700;
}
.app p {
  font-size: 12.5px;
  opacity: .85;
  line-height: 1.6;
}
.app .arrow {
  position: absolute;
  top: 22px; right: 22px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  transition: all var(--transition);
}
.app:hover .arrow {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: rotate(-45deg);
}

/* ---------- 客户证言 ---------- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.testimonial {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--color-border);
  position: relative;
  transition: all var(--transition);
}
.testimonial::before {
  content: "";
  position: absolute;
  top: -14px; left: 32px;
  width: 28px; height: 28px;
  background: var(--grad-accent);
  border-radius: 6px;
  background-image:
    linear-gradient(45deg, rgba(255,255,255,.18), transparent);
  display: flex;
}
.testimonial::after {
  content: "“";
  position: absolute;
  top: -22px; left: 36px;
  font-size: 36px;
  color: #fff;
  font-family: Georgia, serif;
  line-height: 1;
  font-weight: 700;
}
.testimonial:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.testimonial blockquote {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--color-text);
  margin-bottom: 24px;
  position: relative;
  font-weight: 500;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.testimonial-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 700;
}
.testimonial-meta { line-height: 1.4; }
.testimonial-name {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-text);
}
.testimonial-role {
  font-size: 12.5px;
  color: var(--color-muted);
}

/* ---------- 新闻 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}
.news-item {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  display: flex; flex-direction: column;
}
.news-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.news-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #4a5568, #2d3748);
  position: relative;
  overflow: hidden;
}
.news-thumb img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 3;
}
.news-thumb.n1 { background: linear-gradient(135deg, #1f5dba, #0a3d8f); }
.news-thumb.n2 { background: linear-gradient(135deg, #ff6a00, #c44900); }
.news-thumb.n3 { background: linear-gradient(135deg, #2c5282, #1a365d); }
.news-thumb::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.04) 0 4px, transparent 4px 12px),
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.08), transparent 60%);
}
.news-date-badge {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(255,255,255,.96);
  color: var(--color-primary);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  z-index: 4;
}
.news-body {
  padding: 24px 22px 26px;
  flex: 1;
  display: flex; flex-direction: column;
}
.news-meta {
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 10px;
  display: flex; gap: 12px; align-items: center;
}
.news-meta .tag {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.news-meta .tag::before { content: "● "; font-size: 8px; }
.news-body h5 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--color-text);
  line-height: 1.5;
  font-weight: 700;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.news-item:hover .news-body h5 { color: var(--color-primary); }
.news-body p {
  font-size: 13px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.7;
  flex: 1;
}

/* ---------- CTA 条 ---------- */
.cta-strip {
  background:
    linear-gradient(120deg, rgba(8,44,102,.94), rgba(255,106,0,.85)),
    var(--color-primary);
  color: #fff;
  padding: 64px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000, transparent 70%);
}
.cta-strip > * { position: relative; z-index: 1; }
.cta-strip h3 {
  font-size: clamp(24px, 2.6vw, 32px);
  margin-bottom: 12px;
  font-weight: 800;
}
.cta-strip p {
  opacity: .92;
  margin-bottom: 26px;
  font-size: 15px;
}
.cta-strip .btn-primary { background: #fff; color: var(--color-primary); box-shadow: var(--shadow-lg); }
.cta-strip .btn-primary:hover { background: #f3f4f6; color: var(--color-primary-dark); }

/* ---------- 合作客户：滚动marquee ---------- */
.partners-marquee {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}
.partners-track {
  display: flex;
  gap: 18px;
  width: max-content;
  animation: marquee 32s linear infinite;
}
.partners-marquee:hover .partners-track { animation-play-state: paused; }
@keyframes marquee {
  to { transform: translateX(-50%); }
}
.partner {
  flex-shrink: 0;
  width: 180px;
  height: 88px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-soft);
  letter-spacing: 1.5px;
  transition: all var(--transition);
}
.partner:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,.7);
  padding: 70px 0 0;
  font-size: 13.5px;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
  background-size: 200% 100%;
  animation: shimmer 8s linear infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 50px;
}
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-en   { color: rgba(255,255,255,.5); }
.footer-brand p {
  margin-top: 18px;
  line-height: 1.85;
  color: rgba(255,255,255,.6);
  max-width: 340px;
}
.footer-social {
  display: flex; gap: 10px;
  margin-top: 22px;
}
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.7);
  transition: all var(--transition);
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-3px);
}

.footer-col h6 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h6::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 30px; height: 2px;
  background: var(--color-accent);
}
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul a { color: rgba(255,255,255,.65); transition: all var(--transition); }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }

.footer-contact li {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  align-items: flex-start;
  color: rgba(255,255,255,.7);
}
.footer-contact svg { flex-shrink: 0; margin-top: 3px; opacity: .7; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12.5px;
  color: rgba(255,255,255,.45);
}
.footer-bottom a:hover { color: #fff; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  border: none;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 99;
}
.back-top:hover {
  background: var(--grad-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-orange);
}
.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 内页通用 ---------- */
.page-banner {
  height: 320px;
  background:
    linear-gradient(120deg, rgba(8,44,102,.92), rgba(10,61,143,.6)),
    radial-gradient(circle at 30% 40%, #143a7a 0%, transparent 60%),
    var(--color-bg-dark);
  color: #fff;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 75%);
}
.page-banner::after {
  content: "";
  position: absolute;
  top: 50%; right: -10%;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,106,0,.15), transparent 70%);
  transform: translateY(-50%);
}
.page-banner h1 {
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 12px;
  position: relative;
}
.page-banner h1::after {
  content: "";
  display: block;
  width: 60px; height: 3px;
  background: var(--grad-accent);
  margin-top: 14px;
  border-radius: 2px;
}
.breadcrumb {
  font-size: 13.5px;
  color: rgba(255,255,255,.7);
  position: relative;
  margin-top: 8px;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { margin: 0 10px; opacity: .5; }

/* ---------- 内容主体 ---------- */
.content-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 50px;
  align-items: start;
}

/* 侧栏导航 */
.side-nav {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-h) + 20px);
  box-shadow: var(--shadow-sm);
}
.side-nav-head {
  padding: 24px;
  background: var(--grad-primary);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.side-nav-head::before {
  content: "";
  position: absolute;
  top: -30px; right: -30px;
  width: 120px; height: 120px;
  border: 2px solid rgba(255,255,255,.1);
  border-radius: 50%;
}
.side-nav-head h4 { font-size: 18px; font-weight: 700; position: relative; }
.side-nav-head small {
  color: rgba(255,255,255,.7);
  font-size: 11px;
  letter-spacing: 2px;
  position: relative;
  text-transform: uppercase;
  margin-top: 4px;
  display: block;
}
.side-nav ul li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 22px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text);
  transition: all var(--transition);
}
.side-nav ul li:last-child a { border-bottom: none; }
.side-nav ul li a:hover {
  background: var(--color-bg-soft);
  color: var(--color-primary);
  padding-left: 28px;
}
.side-nav ul li a.active {
  background: linear-gradient(90deg, var(--color-primary-soft), transparent);
  color: var(--color-primary);
  font-weight: 700;
  border-left: 3px solid var(--color-accent);
  padding-left: 19px;
}
.side-nav ul li a::after { content: "›"; opacity: .4; font-size: 18px; }

/* 文章正文 */
.prose h2 {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 18px;
  padding-left: 16px;
  border-left: 4px solid var(--color-accent);
  font-weight: 800;
  line-height: 1.3;
}
.prose h3 {
  font-size: 18px;
  margin: 26px 0 12px;
  color: var(--color-text);
  font-weight: 700;
}
.prose p {
  color: var(--color-text-soft);
  margin-bottom: 14px;
  text-align: justify;
  line-height: 1.85;
}
.prose ul.dot {
  margin: 14px 0 20px 4px;
}
.prose ul.dot li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.75;
}
.prose ul.dot li::before {
  content: "";
  position: absolute;
  left: 4px; top: 11px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--color-accent);
  transform: rotate(45deg);
}
.prose .quote {
  background: linear-gradient(135deg, var(--color-primary-soft), #fff);
  border-left: 4px solid var(--color-primary);
  padding: 18px 24px;
  margin: 22px 0;
  font-size: 15px;
  color: var(--color-text);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  line-height: 1.85;
  position: relative;
}
.prose .quote::before {
  content: "“";
  position: absolute;
  top: -8px; left: 12px;
  font-size: 48px;
  color: var(--color-primary);
  opacity: .25;
  line-height: 1;
  font-family: Georgia, serif;
}
.prose .figure {
  margin: 28px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-primary);
  aspect-ratio: 16/8;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.7);
  font-size: 13px;
  letter-spacing: 1px;
  border: 1px dashed rgba(255,255,255,.2);
}
.prose .figure img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: inherit;
  z-index: 2;
}
.prose .figure::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0 6px, transparent 6px 14px),
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.06), transparent 60%);
}
.prose .figure span { position: relative; z-index: 3; }

/* 数据表格 */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.spec-table th, .spec-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.spec-table thead th {
  background: var(--grad-primary);
  color: #fff;
  font-weight: 600;
  border-bottom: none;
  letter-spacing: 1px;
}
.spec-table tbody tr { background: #fff; transition: background var(--transition); }
.spec-table tbody tr:nth-child(even) { background: var(--color-bg-soft); }
.spec-table tbody tr:hover { background: var(--color-primary-soft); }
.spec-table td:first-child { font-weight: 600; color: var(--color-text); }

/* 联系方式卡 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, var(--color-primary-soft), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}
.contact-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.contact-card:hover::before { opacity: 1; }
.contact-card > * { position: relative; z-index: 1; }
.contact-card .ico {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition);
}
.contact-card:hover .ico { transform: rotate(-8deg) scale(1.05); }
.contact-card h5 {
  font-size: 16.5px;
  margin-bottom: 10px;
  color: var(--color-text);
  font-weight: 700;
}
.contact-card p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.75;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.form-row.full { grid-template-columns: 1fr; }
.form-row label {
  display: block;
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--color-text);
  font-weight: 600;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  transition: all var(--transition);
  background: #fff;
  color: var(--color-text);
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(10,61,143,.1);
}
.form-row textarea { resize: vertical; min-height: 140px; }

/* 时间线 */
.timeline {
  position: relative;
  padding-left: 32px;
  margin: 26px 0;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-border));
}
.tl-item { position: relative; margin-bottom: 30px; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 1px var(--color-accent), 0 0 0 6px rgba(255,106,0,.12);
}
.tl-date {
  font-weight: 800;
  color: var(--color-primary);
  font-size: 14.5px;
  letter-spacing: 1px;
}
.tl-item h4 {
  font-size: 16px;
  margin: 6px 0 6px;
  color: var(--color-text);
  font-weight: 700;
}
.tl-item p {
  font-size: 13.5px;
  color: var(--color-text-soft);
  line-height: 1.75;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; padding-top: 60px; padding-bottom: 60px; }
  .hero-showcase { max-width: 420px; margin: 0 auto; min-height: 340px; }
  .scroll-down { display: none; }
  .content-block { grid-template-columns: 240px 1fr; gap: 32px; }
}

@media (max-width: 992px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
  .apps { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .stat-item:nth-child(2)::after { display: none; }
  .content-block { grid-template-columns: 1fr; }
  .side-nav { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .workflow { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .workflow::before { display: none; }
  .testimonials { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .topbar .meta span:nth-child(2) { display: none; }
  .nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
    transform: translateY(-120%);
    transition: transform var(--transition);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 14px 24px; border-radius: 0; }
  .nav a::after { display: none; }
  .menu-toggle { display: inline-flex; }

  .hero { min-height: auto; padding: 60px 0 80px; }
  .hero-showcase { max-width: 320px; min-height: 280px; }
  .hero-side-imgs { display: none; }
  .hero-main-img { width: 100%; }
  .hfc-1 { left: 0; bottom: 40px; }
  .hfc-2 { bottom: -5px; left: 10%; }
  .hfc-3 { top: -10px; right: 0; }
  .hero-trust { gap: 18px; }

  .cards { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .apps { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .form-row { grid-template-columns: 1fr; }
  .about-points { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
  .workflow { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 24px; }
  .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}

/* 打印样式 */
@media print {
  .topbar, .site-header, .hero, .cta-strip, .back-top, .menu-toggle { display: none; }
  body { color: #000; }
  .section { padding: 30px 0; }
}