/* ============================================================
   MRG 半导体装备官网 — 全局样式
   风格：简约大气 / 浅色调 / 半导体科技风
   ============================================================ */

:root {
  /* 色彩系统 */
  --primary-50:  #eef4ff;
  --primary-100: #dce8ff;
  --primary-300: #7aa8ff;
  --primary-500: #1463ff;
  --primary-600: #0d4fe0;
  --primary-700: #0a3fb4;
  --accent-cyan: #00c2d8;
  --accent-cyan-light: #e6fbfd;


  --ink-900: #0f1f3d;   /* 主标题 */
  --ink-700: #2c3e5e;   /* 次级文字 */
  --ink-500: #5a6b8c;   /* 正文 */
  --ink-400: #8494b0;   /* 辅助 */

  --bg-white: #ffffff;
  --bg-soft:  #f6f8fc;  /* 浅灰蓝底 */
  --bg-line:  #e3e9f4;  /* 分割线 */

  /* 字体 */
  --font-sans: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Consolas, monospace;

  /* 间距（8pt） */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-10: 40px; --sp-12: 48px;
  --sp-16: 64px; --sp-20: 80px; --sp-24: 96px;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(15, 31, 61, .06);
  --shadow-md: 0 8px 24px rgba(15, 31, 61, .08);
  --shadow-lg: 0 20px 48px rgba(20, 99, 255, .12);

  --transition: .3s cubic-bezier(.4, 0, .2, 1);

  --container: 1200px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-500);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 { color: var(--ink-900); font-weight: 700; line-height: 1.25; }

::selection { background: var(--primary-100); color: var(--primary-700); }

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section { padding: var(--sp-24) 0; }
.section--soft { background: var(--bg-soft); }

.section-head { max-width: 640px; margin-bottom: var(--sp-16); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--primary-500);
  margin-bottom: var(--sp-4);
}
.section-tag::before {
  content: "";
  width: 24px; height: 2px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-cyan));
}
.section-title { font-size: clamp(28px, 4vw, 40px); margin-bottom: var(--sp-4); }
.section-desc { font-size: 17px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--primary-500); outline-offset: 3px; }

.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  box-shadow: 0 6px 20px rgba(20, 99, 255, .28);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(20, 99, 255, .36); }

.btn--ghost {
  color: var(--primary-600);
  border: 1px solid var(--primary-300);
  background: rgba(255, 255, 255, .6);
}
.btn--ghost:hover { background: var(--primary-50); border-color: var(--primary-500); }

.btn--lg { padding: 16px 40px; font-size: 16px; }

.btn .arrow { transition: transform var(--transition); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.site-header.is-scrolled { border-bottom-color: var(--bg-line); box-shadow: var(--shadow-sm); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo { display: flex; align-items: center; gap: var(--sp-3); }
.logo-mark {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-cyan));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  box-shadow: 0 4px 12px rgba(20, 99, 255, .3);
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--ink-900); letter-spacing: .04em; }
.logo-text small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--ink-400);
  letter-spacing: .22em;
}

.main-nav { display: flex; align-items: center; gap: var(--sp-8); }
.main-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-700);
  padding: var(--sp-2) 0;
  transition: color var(--transition);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-cyan));
  transition: width var(--transition);
}
.main-nav a:hover, .main-nav a.is-active { color: var(--primary-600); }
.main-nav a:hover::after, .main-nav a.is-active::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--sp-2);
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 180px 0 var(--sp-24);
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(0, 194, 216, .12), transparent 60%),
    radial-gradient(800px 520px at 10% 0%, rgba(20, 99, 255, .10), transparent 60%),
    linear-gradient(180deg, #fbfdff 0%, #f4f8ff 100%);
}
/* 电路纹理 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--bg-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
  opacity: .55;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--sp-16);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-600);
  background: rgba(255, 255, 255, .75);
  border: 1px solid var(--primary-100);
  border-radius: 100px;
  margin-bottom: var(--sp-6);
  box-shadow: var(--shadow-sm);
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 194, 216, .5); }
  50%      { box-shadow: 0 0 0 6px rgba(0, 194, 216, 0); }
}

.hero-title {
  font-size: clamp(34px, 5.2vw, 56px);
  letter-spacing: -.01em;
  margin-bottom: var(--sp-6);
}
.hero-title .gradient-text {
  background: linear-gradient(120deg, var(--primary-500) 20%, var(--accent-cyan) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { font-size: 18px; max-width: 520px; margin-bottom: var(--sp-10); }
.hero-actions { display: flex; gap: var(--sp-4); flex-wrap: wrap; }

/* Hero 右侧晶圆视觉 */
.hero-visual { position: relative; display: grid; place-items: center; }
.wafer {
  position: relative;
  width: min(420px, 90%);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, rgba(255, 255, 255, .9), rgba(255, 255, 255, 0) 42%),
    conic-gradient(from 210deg,
      #dfe9ff, #b9d0ff, #8fd8e8, #cfe0ff,
      #a8c4ff, #d9f2f6, #dfe9ff);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, .7),
    inset 0 -18px 48px rgba(20, 99, 255, .18),
    0 32px 64px rgba(15, 31, 61, .14);
  animation: wafer-float 6s ease-in-out infinite;
}
.wafer::before {
  /* 晶圆 Die 网格 */
  content: "";
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  background-image:
    linear-gradient(rgba(255, 255, 255, .85) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .85) 1px, transparent 1px);
  background-size: 11% 11%;
  mask-image: radial-gradient(circle, #000 62%, transparent 64%);
  -webkit-mask-image: radial-gradient(circle, #000 62%, transparent 64%);
}
.wafer::after {
  /* 缺口 Notch */
  content: "";
  position: absolute;
  bottom: 3.5%; left: 50%;
  width: 10%; height: 5%;
  transform: translateX(-50%);
  background: var(--bg-white);
  border-radius: 0 0 12px 12px;
  box-shadow: inset 0 2px 4px rgba(15, 31, 61, .12);
}
@keyframes wafer-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-14px) rotate(2deg); }
}

.hero-visual .orbit {
  position: absolute;
  width: min(560px, 110%);
  aspect-ratio: 1;
  border: 1px dashed rgba(20, 99, 255, .28);
  border-radius: 50%;
  animation: orbit-spin 24s linear infinite;
}
.hero-visual .orbit::before {
  content: "";
  position: absolute;
  top: -5px; left: 50%;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 194, 216, .8);
}
@keyframes orbit-spin { to { transform: rotate(360deg); } }

.hero-chip-tag {
  position: absolute;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary-700);
  background: rgba(255, 255, 255, .9);
  border: 1px solid var(--bg-line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(6px);
}
.hero-chip-tag--1 { top: 12%; left: -4%;  animation: tag-float 5s ease-in-out infinite; }
.hero-chip-tag--2 { bottom: 16%; right: -2%; animation: tag-float 5s ease-in-out 1.2s infinite; }
@keyframes tag-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* 页头横幅（子页面） */
.page-hero {
  position: relative;
  padding: 168px 0 var(--sp-20);
  overflow: hidden;
  background:
    radial-gradient(720px 400px at 90% -20%, rgba(0, 194, 216, .12), transparent 60%),
    radial-gradient(640px 400px at 5% 0%, rgba(20, 99, 255, .10), transparent 60%),
    linear-gradient(180deg, #fbfdff, #f4f8ff);
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--bg-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 0%, #000 30%, transparent 80%);
  opacity: .5;
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(32px, 4.5vw, 48px); margin: var(--sp-4) 0 var(--sp-4); }
.page-hero p { max-width: 600px; font-size: 17px; }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-400);
  letter-spacing: .06em;
}
.breadcrumb a { color: var(--primary-500); }
.breadcrumb a:hover { text-decoration: underline; }

/* ---------- 数据统计条 ---------- */
.stats-bar { border-top: 1px solid var(--bg-line); border-bottom: 1px solid var(--bg-line); background: #fff; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat-item {
  padding: var(--sp-12) var(--sp-6);
  text-align: center;
  border-left: 1px solid var(--bg-line);
}
.stat-item:first-child { border-left: none; }
.stat-num {
  font-size: clamp(32px, 3.6vw, 44px);
  font-weight: 800;
  color: var(--ink-900);
  font-variant-numeric: tabular-nums;
}
.stat-num .suffix { color: var(--primary-500); font-size: .6em; margin-left: 2px; }
.stat-label { font-size: 14px; color: var(--ink-400); margin-top: var(--sp-1); }

/* ---------- 卡片 ---------- */
.card-grid { display: grid; gap: var(--sp-6); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--bg-line);
  border-radius: var(--radius-md);
  padding: var(--sp-8);
  transition: all var(--transition);
  overflow: hidden;
}
/* 芯片角标装饰 */
.card::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 56px; height: 56px;
  background:
    linear-gradient(135deg, transparent 50%, var(--primary-50) 50%);
  transition: all var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-300);
  box-shadow: var(--shadow-lg);
}
.card:hover::before { background: linear-gradient(135deg, transparent 50%, var(--primary-100) 50%); }

.card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  margin-bottom: var(--sp-6);
  color: var(--primary-600);
  background: linear-gradient(135deg, var(--primary-50), var(--accent-cyan-light));
  border: 1px solid var(--primary-100);
}
.card h3 { font-size: 19px; margin-bottom: var(--sp-3); }
.card p { font-size: 15px; }

/* ---------- 产品卡片 ---------- */
.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--bg-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-300); }

.product-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 70% 20%, rgba(0, 194, 216, .15), transparent 55%),
    linear-gradient(135deg, #eef4ff, #f7fbff);
  border-bottom: 1px solid var(--bg-line);
  overflow: hidden;
}
.product-visual::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(20, 99, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 99, 255, .07) 1px, transparent 1px);
  background-size: 28px 28px;
}
.product-visual svg { position: relative; transition: transform var(--transition); }
.product-card:hover .product-visual svg { transform: scale(1.05); }

.product-tag {
  position: absolute;
  top: var(--sp-4); left: var(--sp-4);
  z-index: 2;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--primary-600);
  background: rgba(255, 255, 255, .9);
  border: 1px solid var(--primary-100);
  border-radius: 100px;
}

.product-body { padding: var(--sp-6); display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 20px; margin-bottom: var(--sp-2); }
.product-body .en {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-400);
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}
.product-body p { font-size: 15px; flex: 1; }
.product-specs {
  display: flex;
  gap: var(--sp-4);
  margin: var(--sp-4) 0;
  padding: var(--sp-3) 0;
  border-top: 1px dashed var(--bg-line);
  border-bottom: 1px dashed var(--bg-line);
}
.product-specs div { flex: 1; }
.product-specs dt { font-size: 12px; color: var(--ink-400); }
.product-specs dd { font-size: 15px; font-weight: 700; color: var(--ink-900); font-variant-numeric: tabular-nums; }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-600);
}
.link-more .arrow { transition: transform var(--transition); }
.link-more:hover .arrow { transform: translateX(4px); }

/* ---------- 特性列表 ---------- */
.feature-list li {
  position: relative;
  padding: var(--sp-3) 0 var(--sp-3) 36px;
  font-size: 16px;
  color: var(--ink-700);
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 18px;
  width: 20px; height: 20px;
  border-radius: 6px;
  background: var(--primary-50) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%231463ff" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>') center/12px no-repeat;
  border: 1px solid var(--primary-100);
}

/* ---------- 时间线 ---------- */
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 40px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 11px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-500), var(--accent-cyan));
  border-radius: 2px;
  opacity: .35;
}
.timeline-item { position: relative; padding-bottom: var(--sp-10); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -36px; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary-500);
  box-shadow: 0 0 0 4px var(--primary-50);
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-600);
  letter-spacing: .08em;
}
.timeline-item h3 { font-size: 19px; margin: var(--sp-1) 0 var(--sp-2); }
.timeline-item p { font-size: 15px; }

/* ---------- 参数表 ---------- */
.spec-table-wrap { overflow-x: auto; border: 1px solid var(--bg-line); border-radius: var(--radius-md); background: #fff; }
.spec-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.spec-table th, .spec-table td {
  padding: 14px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--bg-line);
}
.spec-table thead th {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--primary-700);
  background: var(--primary-50);
  white-space: nowrap;
}
.spec-table tbody th { color: var(--ink-900); font-weight: 600; white-space: nowrap; }
.spec-table tbody td { color: var(--ink-500); font-variant-numeric: tabular-nums; }
.spec-table tbody tr:hover { background: var(--bg-soft); }
.spec-table tbody tr:last-child th, .spec-table tbody tr:last-child td { border-bottom: none; }

/* ---------- 表单 ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--bg-line);
  border-radius: var(--radius-lg);
  padding: var(--sp-10);
  box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
.form-group { margin-bottom: var(--sp-6); }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-700);
  margin-bottom: var(--sp-2);
}
.form-group label .req { color: #e5484d; margin-left: 2px; }
.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink-900);
  background: var(--bg-soft);
  border: 1px solid var(--bg-line);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.form-control:focus {
  outline: none;
  background: #fff;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(20, 99, 255, .1);
}
textarea.form-control { resize: vertical; min-height: 120px; }

/* ---------- 联系信息 ---------- */
.contact-item { display: flex; gap: var(--sp-4); padding: var(--sp-6) 0; border-bottom: 1px solid var(--bg-line); }
.contact-item:last-child { border-bottom: none; }
.contact-item .card-icon { width: 44px; height: 44px; margin-bottom: 0; flex-shrink: 0; }
.contact-item h4 { font-size: 15px; margin-bottom: 2px; }
.contact-item p { font-size: 15px; color: var(--ink-500); }

.map-placeholder {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  border: 1px solid var(--bg-line);
  overflow: hidden;
  background:
    radial-gradient(circle at 60% 40%, rgba(0, 194, 216, .14), transparent 55%),
    linear-gradient(135deg, #eef4ff, #f7fbff);
}
.map-placeholder::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(20, 99, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 99, 255, .08) 1px, transparent 1px);
  background-size: 32px 32px;
}
.map-pin {
  position: absolute;
  top: 46%; left: 58%;
  transform: translate(-50%, -100%);
  text-align: center;
}
.map-pin .pin {
  width: 34px; height: 34px;
  margin: 0 auto;
  border-radius: 50% 50% 50% 4px;
  transform: rotate(-45deg);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-cyan));
  box-shadow: 0 8px 20px rgba(20, 99, 255, .4);
  display: grid; place-items: center;
  animation: pin-bounce 2s ease-in-out infinite;
}
.map-pin .pin::after {
  content: "";
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #fff;
}
@keyframes pin-bounce {
  0%, 100% { transform: rotate(-45deg) translate(0, 0); }
  50%      { transform: rotate(-45deg) translate(-4px, 4px); }
}
.map-pin span {
  display: inline-block;
  margin-top: var(--sp-3);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-700);
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--bg-line);
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
}

/* ---------- CTA ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: var(--sp-20) var(--sp-12);
  text-align: center;
  color: #fff;
  background: linear-gradient(120deg, var(--primary-600) 0%, var(--primary-500) 55%, #0899b0 100%);
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .09) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.4vw, 36px); margin-bottom: var(--sp-4); }
.cta-band p { color: rgba(255, 255, 255, .85); max-width: 560px; margin: 0 auto var(--sp-8); font-size: 17px; }
.cta-band .btn--ghost { color: #fff; border-color: rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .1); }
.cta-band .btn--ghost:hover { background: rgba(255, 255, 255, .2); border-color: #fff; }
.btn--white { background: #fff; color: var(--primary-600); box-shadow: 0 8px 24px rgba(0, 0, 0, .18); }
.btn--white:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0, 0, 0, .24); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--bg-line);
  padding: var(--sp-16) 0 var(--sp-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--sp-10);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid var(--bg-line);
}
.footer-brand p { font-size: 14px; margin-top: var(--sp-4); max-width: 280px; }
.footer-col h4 { font-size: 15px; margin-bottom: var(--sp-4); }
.footer-col li { margin-bottom: var(--sp-3); }
.footer-col a { font-size: 14px; color: var(--ink-500); transition: color var(--transition); }
.footer-col a:hover { color: var(--primary-600); }
.footer-col p { font-size: 14px; margin-bottom: var(--sp-3); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  padding-top: var(--sp-8);
  font-size: 13px;
  color: var(--ink-400);
}

/* ---------- 滚动显现动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.22, 1, .36, 1);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }

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

/* ---------- 双栏布局 ---------- */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.grid-2col--start { align-items: start; grid-template-columns: 1fr 1.2fr; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-2col { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-visual { order: -1; }
  .wafer { width: min(320px, 80%); }
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: var(--sp-16) 0; }
  .hero { padding-top: 140px; }
  .page-hero { padding: 140px 0 var(--sp-16); }

  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--sp-4) var(--sp-6) var(--sp-6);
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--bg-line);
    box-shadow: var(--shadow-md);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }
  .main-nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 14px 0; border-bottom: 1px solid var(--bg-line); }
  .main-nav a:last-child { border-bottom: none; }
  .main-nav a::after { display: none; }
  .main-nav .btn { margin-top: var(--sp-4); }

  .card-grid--3, .card-grid--2 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(3) { border-left: none; }
  .stat-item { border-top: 1px solid var(--bg-line); }
  .stat-item:nth-child(-n+2) { border-top: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .cta-band { padding: var(--sp-16) var(--sp-6); }
}