/* ============================================================
   星云科技 - 企业官网 设计系统
   主题: 深空工程蓝 / 电光青
   ============================================================ */

:root {
  /* 色板 */
  --bg: #F4F7FC;
  --surface: #FFFFFF;
  --ink: #0A1E3C;
  --ink-soft: #11284E;
  --ink-soft-2: #16325F;
  --primary: #2563EB;
  --primary-2: #06B6D4;
  --grad: linear-gradient(120deg, #2563EB 0%, #06B6D4 100%);
  --grad-soft: linear-gradient(135deg, rgba(37,99,235,.12), rgba(6,182,212,.10));
  --text: #2A3B55;
  --muted: #6B7C99;
  --line: #E3EAF5;
  --white: #FFFFFF;

  /* 字体 */
  --font-display: 'Rajdhani', 'DIN Alternate', 'Segoe UI', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', 'Helvetica Neue', Arial, sans-serif;

  /* 尺寸 */
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(10,30,60,.06);
  --shadow: 0 10px 34px rgba(10,30,60,.10);
  --shadow-lg: 0 24px 60px rgba(10,30,60,.16);
  --nav-h: 76px;
  --container: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 14px; color: var(--text); }

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

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #EAF0F9; }
::-webkit-scrollbar-thumb { background: #B9C9E2; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #93A8CC; }

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

.section { padding: 96px 0; position: relative; }
.section-sm { padding: 64px 0; }
.section-dark { background: var(--ink); color: rgba(255,255,255,.85); }
.section-alt { background: #EDF2FA; }

/* ---------- 区块标题 ---------- */
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600;
  letter-spacing: .32em; text-transform: uppercase;
  font-size: 12px; color: var(--primary);
  margin-bottom: 14px;
}
.kicker::before { content: ''; width: 30px; height: 2px; background: var(--grad); }
.section-head.center .kicker::after { content: ''; width: 30px; height: 2px; background: var(--grad); }

.section-title {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700; color: var(--ink);
  line-height: 1.25; letter-spacing: .01em;
}
.section-title em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.section-desc { margin-top: 14px; color: var(--muted); font-size: 15px; line-height: 1.9; }

.section-dark .section-title { color: #fff; }
.section-dark .section-desc { color: rgba(255,255,255,.62); }

/* 页面副标题英文水印 */
.section-en {
  position: absolute; top: -10px; right: 0;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(64px, 10vw, 130px);
  color: rgba(10,30,60,.035); line-height: 1; z-index: 0;
  pointer-events: none; user-select: none;
}
.section-head.center ~ .section-en { left: 50%; transform: translateX(-50%); right: auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 60px;
  font-size: 15px; font-weight: 600; letter-spacing: .03em;
  border: 1px solid transparent; transition: all .3s ease; white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform .3s ease; }
.btn:hover svg { transform: translateX(4px); }

.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(37,99,235,.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(37,99,235,.42); }

.btn-ghost { border-color: rgba(37,99,235,.4); color: var(--primary); background: transparent; }
.btn-ghost:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

.btn-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.25); backdrop-filter: blur(6px); }
.btn-light:hover { background: #fff; color: var(--ink); border-color: #fff; }

.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0,0,0,.25); }

.btn-lg { padding: 15px 38px; font-size: 16px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  height: var(--nav-h); transition: all .35s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 6px 24px rgba(10,30,60,.08);
  border-bottom: 1px solid rgba(227,234,245,.7);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark { width: 42px; height: 42px; flex: none; }
.logo-name {
  font-size: 21px; font-weight: 700; letter-spacing: .02em; color: var(--ink);
  line-height: 1.1;
}
.logo-name small { display: block; font-family: var(--font-display); font-weight: 600; font-size: 11px; letter-spacing: .34em; color: var(--primary); text-transform: uppercase; }
.site-header.is-scrolled .logo-name { color: var(--ink); }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  position: relative; padding: 8px 16px; font-size: 15px; font-weight: 500;
  color: var(--ink); border-radius: 8px; transition: color .25s ease;
}
.main-nav a::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px;
  background: var(--grad); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.main-nav a:hover, .main-nav a.is-active { color: var(--primary); }
.main-nav a:hover::after, .main-nav a.is-active::after { transform: scaleX(1); }

.header-right { display: flex; align-items: center; gap: 16px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; align-items: center; justify-content: center; background: transparent; border: 0; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: all .3s ease; }
.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); }

/* ---------- 首页 HERO ---------- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: var(--ink);
  color: #fff; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(96,165,250,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,165,250,.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
}
.hero-orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.hero-orb-1 { width: 480px; height: 480px; background: radial-gradient(circle, rgba(37,99,235,.55), transparent 65%); top: -120px; right: -80px; animation: orbFloat 12s ease-in-out infinite; }
.hero-orb-2 { width: 420px; height: 420px; background: radial-gradient(circle, rgba(6,182,212,.4), transparent 65%); bottom: -140px; left: 8%; animation: orbFloat 16s ease-in-out infinite reverse; }
.hero-orb-3 { width: 260px; height: 260px; background: radial-gradient(circle, rgba(129,140,248,.35), transparent 65%); top: 40%; left: 55%; animation: orbFloat 20s ease-in-out infinite; }
@keyframes orbFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(30px,-40px) scale(1.08); }
}

.hero-content { position: relative; z-index: 2; padding: 60px 0 90px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 18px; border-radius: 40px;
  border: 1px solid rgba(125,211,252,.35);
  background: rgba(56,189,248,.08);
  color: #7DD3FC; font-size: 13px; letter-spacing: .08em;
  margin-bottom: 26px;
}
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: #22D3EE; box-shadow: 0 0 0 0 rgba(34,211,238,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(34,211,238,.55); } 70% { box-shadow: 0 0 0 10px rgba(34,211,238,0); } 100% { box-shadow: 0 0 0 0 rgba(34,211,238,0); } }

.hero-title {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800; line-height: 1.15; letter-spacing: .01em;
  color: #fff;
}
.hero-title .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.hero-sub { margin-top: 24px; max-width: 620px; font-size: 17px; color: rgba(255,255,255,.72); line-height: 1.9; }

.hero-actions { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 64px; display: flex; gap: 0; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 34px;
}
.hero-stat { flex: 1; min-width: 140px; padding-right: 24px; }
.hero-stat .num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(34px, 4vw, 48px); line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stat .num sup { font-size: .5em; -webkit-text-fill-color: rgba(255,255,255,.6); color: rgba(255,255,255,.6); }
.hero-stat .lbl { margin-top: 8px; font-size: 13px; color: rgba(255,255,255,.55); letter-spacing: .12em; }

.hero-scroll {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  z-index: 3; color: rgba(255,255,255,.5); font-size: 12px; letter-spacing: .3em;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.hero-scroll .mouse { width: 24px; height: 38px; border: 1.5px solid rgba(255,255,255,.35); border-radius: 14px; position: relative; }
.hero-scroll .mouse::after { content: ''; position: absolute; top: 7px; left: 50%; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 3px; background: #22D3EE; animation: scrollWheel 1.8s infinite; }
@keyframes scrollWheel { 0% { opacity: 1; transform: translateY(0); } 70% { opacity: 0; transform: translateY(12px); } 100% { opacity: 0; } }

/* 入场动画 */
.hero-anim { opacity: 0; transform: translateY(28px); animation: heroUp .9s cubic-bezier(.22,.61,.36,1) forwards; }
@keyframes heroUp { to { opacity: 1; transform: translateY(0); } }
.hero-anim:nth-child(1) { animation-delay: .08s; }
.hero-anim:nth-child(2) { animation-delay: .18s; }
.hero-anim:nth-child(3) { animation-delay: .28s; }
.hero-anim:nth-child(4) { animation-delay: .38s; }
.hero-anim:nth-child(5) { animation-delay: .5s; }

/* ---------- 内页 HERO ---------- */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + 70px) 0 64px;
  background: var(--ink); color: #fff; overflow: hidden;
}
.page-hero .hero-bg-grid { opacity: .8; }
.page-hero-title { position: relative; z-index: 2; font-size: clamp(30px, 4vw, 44px); font-weight: 800; color: #fff; }
.page-hero-title .en { display: block; font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: .4em; color: #38BDF8; text-transform: uppercase; margin-bottom: 12px; }
.breadcrumb { position: relative; z-index: 2; margin-top: 16px; display: flex; gap: 8px; align-items: center; font-size: 13px; color: rgba(255,255,255,.55); }
.breadcrumb a:hover { color: #38BDF8; }
.breadcrumb .sep { opacity: .5; }

/* ---------- 特性卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 1; }
.feature-card {
  background: var(--surface); border-radius: var(--radius);
  padding: 34px 26px; border: 1px solid var(--line);
  transition: all .35s ease; position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card .ico {
  width: 58px; height: 58px; border-radius: 16px;
  background: var(--grad-soft); display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px; color: var(--primary); transition: all .35s ease;
}
.feature-card:hover .ico { background: var(--grad); color: #fff; box-shadow: 0 10px 22px rgba(37,99,235,.3); }
.feature-card .ico svg { width: 28px; height: 28px; }
.feature-card h3 { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.feature-card p { font-size: 13.5px; color: var(--muted); line-height: 1.85; }

/* ---------- 数字统计条 ---------- */
.stats-band { background: var(--ink); position: relative; overflow: hidden; }
.stats-band .hero-bg-grid { opacity: .5; }
.stats-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(42px, 5vw, 60px); line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-item .num sup { -webkit-text-fill-color: rgba(255,255,255,.55); color: rgba(255,255,255,.55); font-size: .45em; }
.stat-item .lbl { margin-top: 12px; font-size: 14px; letter-spacing: .18em; color: rgba(255,255,255,.6); }
.stat-item .line { width: 40px; height: 2px; margin: 16px auto 0; background: rgba(255,255,255,.16); }

/* ---------- 通用卡片 ---------- */
.card {
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid var(--line); overflow: hidden; transition: all .35s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }

.card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background-size: cover; background-position: center; }
.card-media .tag { position: absolute; top: 14px; left: 14px; z-index: 2; padding: 4px 12px; border-radius: 20px; background: rgba(10,30,60,.72); backdrop-filter: blur(6px); color: #fff; font-size: 12px; letter-spacing: .06em; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.card:hover .card-media img { transform: scale(1.08); }
.card-media .veil { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(10,30,60,.55)); opacity: 0; transition: opacity .35s ease; }
.card:hover .card-media .veil { opacity: 1; }

.card-body { padding: 22px 24px 26px; }
.card-body h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-body p { font-size: 13.5px; color: var(--muted); line-height: 1.85; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line); font-size: 12.5px; color: var(--muted); }
.card-more { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 5px; }
.card-more svg { width: 13px; height: 13px; transition: transform .3s ease; }
.card:hover .card-more svg { transform: translateX(4px); }

/* 产品卡片 */
.product-card .card-media { aspect-ratio: 4 / 3; }
.product-card .card-body { padding: 20px 22px; }
.product-card .card-body .sub { font-size: 12px; letter-spacing: .12em; color: var(--primary); font-family: var(--font-display); font-weight: 600; text-transform: uppercase; }

/* 案例卡片 */
.case-card .card-media { aspect-ratio: 16 / 11; }
.case-card .case-client { position: absolute; left: 18px; bottom: 14px; z-index: 2; color: #fff; font-size: 14px; font-weight: 600; }

/* 新闻卡片 */
.news-card .card-media { aspect-ratio: 16 / 9; }
.news-card .card-body { padding: 20px 22px 22px; }

/* ---------- 轮播 ---------- */
.slider { position: relative; overflow: hidden; border-radius: var(--radius); }
.slider-track { display: flex; transition: transform .7s cubic-bezier(.4,0,.2,1); }
.slide { flex: 0 0 100%; position: relative; aspect-ratio: 21 / 8; background-size: cover; background-position: center; }
.slide::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,30,60,.72) 0%, rgba(10,30,60,.25) 55%, transparent 100%); }
.slide .slide-copy { position: absolute; z-index: 2; left: 6%; top: 50%; transform: translateY(-50%); max-width: 560px; color: #fff; }
.slide .slide-copy h3 { font-size: clamp(22px, 3vw, 34px); font-weight: 700; line-height: 1.3; margin-bottom: 10px; }
.slide .slide-copy p { font-size: 15px; color: rgba(255,255,255,.78); }
.slider-dots { display: flex; gap: 8px; justify-content: center; margin-top: 20px; }
.slider-dots button { width: 10px; height: 10px; border-radius: 20px; border: 0; background: #C6D4EA; transition: all .3s ease; padding: 0; }
.slider-dots button.is-active { width: 30px; background: var(--grad); }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%; border: 0;
  background: rgba(255,255,255,.9); color: var(--ink); display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm); opacity: 0; transition: all .3s ease;
}
.slider:hover .slider-arrow { opacity: 1; }
.slider-arrow.prev { left: 18px; } .slider-arrow.next { right: 18px; }
.slider-arrow:hover { background: var(--grad); color: #fff; }
.slider-arrow svg { width: 20px; height: 20px; }

/* ---------- 关于板块 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-visual { position: relative; }
.about-visual .frame { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.about-visual .frame img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.about-visual .float-card {
  position: absolute; left: -30px; bottom: -26px;
  background: #fff; border-radius: 14px; padding: 20px 26px;
  box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 14px;
}
.about-visual .float-card .num { font-family: var(--font-display); font-weight: 700; font-size: 34px; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.about-visual .float-card .txt { font-size: 13px; color: var(--muted); line-height: 1.5; }
.about-list { margin-top: 26px; }
.about-list li { display: flex; gap: 14px; padding: 12px 0; align-items: flex-start; }
.about-list .tick { width: 24px; height: 24px; flex: none; border-radius: 50%; background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center; margin-top: 3px; }
.about-list .tick svg { width: 13px; height: 13px; }
.about-list b { color: var(--ink); font-weight: 600; }
.about-list p { font-size: 14px; color: var(--muted); }

/* ---------- 流程 ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; z-index: 1; }
.step { text-align: center; padding: 0 20px; position: relative; }
.step:not(:last-child)::after {
  content: ''; position: absolute; top: 34px; right: -2px; width: calc(100% - 40px);
  height: 2px; background: repeating-linear-gradient(90deg, #B9C9E2 0 8px, transparent 8px 16px);
}
.step .no {
  width: 68px; height: 68px; margin: 0 auto 20px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--line);
  font-family: var(--font-display); font-weight: 700; font-size: 26px; color: var(--primary);
  display: flex; align-items: center; justify-content: center; position: relative; z-index: 1;
  transition: all .35s ease;
}
.step:hover .no { border-color: var(--primary); box-shadow: 0 12px 26px rgba(37,99,235,.25); }
.step h4 { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }

/* ---------- CTA 条 ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: 22px;
  background: var(--ink); padding: 60px 56px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band .hero-bg-grid { opacity: .5; }
.cta-band::after {
  content: ''; position: absolute; right: -120px; top: -120px; width: 320px; height: 320px;
  border-radius: 50%; background: radial-gradient(circle, rgba(6,182,212,.35), transparent 70%);
}
.cta-band h3 { position: relative; z-index: 1; font-size: clamp(24px, 3vw, 34px); font-weight: 800; }
.cta-band p { position: relative; z-index: 1; margin-top: 10px; color: rgba(255,255,255,.65); }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- 联系表单 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-info .ci-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px dashed var(--line); }
.contact-info .ci-item .ico { width: 46px; height: 46px; flex: none; border-radius: 12px; background: var(--grad-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.contact-info .ci-item .ico svg { width: 22px; height: 22px; }
.contact-info .ci-item h4 { font-size: 14px; color: var(--muted); font-weight: 500; }
.contact-info .ci-item p { font-size: 16px; color: var(--ink); font-weight: 600; margin-top: 2px; }

.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.form-group label .req { color: #EF4444; }
.form-control {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  border: 1.5px solid var(--line); background: #F8FAFE;
  transition: all .25s ease; outline: none; line-height: 1.6;
}
.form-control:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(37,99,235,.1); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-tip { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,.72); position: relative; overflow: hidden; }
.site-footer .hero-bg-grid { opacity: .35; }
.footer-top { position: relative; z-index: 1; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding: 72px 0 48px; }
.footer-brand .logo-name { color: #fff; }
.footer-brand p { margin-top: 18px; font-size: 13.5px; line-height: 1.9; color: rgba(255,255,255,.55); max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--grad); }
.footer-col a { display: block; padding: 6px 0; font-size: 13.5px; color: rgba(255,255,255,.55); transition: all .25s ease; }
.footer-col a:hover { color: #38BDF8; padding-left: 6px; }
.footer-contact li { display: flex; gap: 12px; padding: 8px 0; font-size: 13.5px; color: rgba(255,255,255,.55); }
.footer-contact svg { width: 17px; height: 17px; flex: none; color: #38BDF8; margin-top: 4px; }
.footer-bottom { position: relative; z-index: 1; border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12.5px; color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: #38BDF8; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 28px; bottom: 34px; z-index: 90;
  width: 46px; height: 46px; border-radius: 12px; border: 0;
  background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 28px rgba(37,99,235,.4);
  opacity: 0; visibility: hidden; transform: translateY(14px); transition: all .35s ease;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: translateY(-4px); }
.back-top svg { width: 20px; height: 20px; }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 48px; flex-wrap: wrap; }
.pager-btn, .pager-num {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 16px; border-radius: 10px;
  border: 1px solid var(--line); background: #fff; font-size: 14px; color: var(--text);
  transition: all .25s ease;
}
.pager-num { min-width: 40px; padding: 0 8px; }
.pager-btn.is-disabled { opacity: .45; pointer-events: none; }
.pager-btn:hover, .pager-num:hover, .pager-num.is-active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 6px 16px rgba(37,99,235,.28); }
.pager-ellipsis { color: var(--muted); padding: 0 4px; }

/* ---------- 内容详情 ---------- */
.detail-wrap { background: #fff; border-radius: var(--radius); border: 1px solid var(--line); padding: 48px; box-shadow: var(--shadow-sm); }
.detail-title { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--ink); line-height: 1.4; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 22px; padding: 18px 0 22px; margin-bottom: 26px; border-bottom: 1px dashed var(--line); font-size: 13px; color: var(--muted); }
.detail-meta span { display: inline-flex; align-items: center; gap: 6px; }
.detail-meta svg { width: 15px; height: 15px; }
.detail-body { font-size: 15.5px; line-height: 2; color: #34455F; }
.detail-body p { margin-bottom: 18px; }
.detail-body img { border-radius: 10px; margin: 12px 0; }
.detail-body h2, .detail-body h3 { color: var(--ink); margin: 26px 0 12px; line-height: 1.5; }
.detail-body h2 { font-size: 22px; } .detail-body h3 { font-size: 18px; }
.detail-body ul, .detail-body ol { margin: 0 0 18px 1.4em; }
.detail-body ul { list-style: disc; } .detail-body ol { list-style: decimal; }
.detail-body li { margin-bottom: 6px; }
.detail-body blockquote { border-left: 3px solid var(--primary); background: #F2F6FD; padding: 14px 20px; border-radius: 0 8px 8px 0; color: var(--muted); margin: 18px 0; }
.detail-body table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.detail-body table th, .detail-body table td { border: 1px solid var(--line); padding: 10px 14px; }
.detail-body table th { background: #F2F6FD; color: var(--ink); }

.detail-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 36px; padding-top: 24px; border-top: 1px dashed var(--line); font-size: 14px; flex-wrap: wrap; }
.detail-nav a { color: var(--muted); display: flex; align-items: center; gap: 8px; max-width: 46%; }
.detail-nav a:hover { color: var(--primary); }
.detail-nav svg { width: 14px; height: 14px; flex: none; }

/* 规格参数表 */
.spec-table { width: 100%; border-collapse: collapse; margin: 18px 0; border-radius: 10px; overflow: hidden; }
.spec-table th, .spec-table td { padding: 13px 18px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
.spec-table th { width: 170px; background: #F2F6FD; color: var(--ink); font-weight: 600; }

/* 产品画廊 */
.gallery-main { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; background: #F2F6FD; border: 1px solid var(--line); background-size: cover; background-position: center; }
.gallery-thumbs { display: flex; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.gallery-thumbs button { width: 84px; height: 64px; border-radius: 10px; overflow: hidden; border: 2px solid transparent; padding: 0; background-size: cover; background-position: center; transition: all .25s ease; }
.gallery-thumbs button.is-active { border-color: var(--primary); box-shadow: 0 6px 14px rgba(37,99,235,.25); }
.gallery-thumbs button:hover { transform: translateY(-2px); }

/* ---------- 招聘 ---------- */
.job-list { display: grid; gap: 18px; }
.job-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 30px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  transition: all .3s ease; cursor: pointer;
}
.job-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-3px); }
.job-item .jt { font-size: 18px; font-weight: 700; color: var(--ink); }
.job-item .jt small { display: block; font-size: 12.5px; color: var(--muted); font-weight: 400; margin-top: 6px; }
.job-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.job-tag { padding: 4px 12px; border-radius: 20px; background: #F0F4FB; color: var(--muted); font-size: 12px; }
.job-tag.hl { background: var(--grad-soft); color: var(--primary); font-weight: 600; }
.job-body { display: none; padding: 24px 30px 30px; background: #fff; border: 1px dashed var(--line); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); margin-top: -18px; padding-top: 34px; }
.job-body.open { display: block; }
.job-body h4 { font-size: 14px; color: var(--ink); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.job-body h4::before { content: ''; width: 4px; height: 16px; border-radius: 2px; background: var(--grad); }
.job-body ul { list-style: disc; margin-left: 1.4em; }
.job-body li { font-size: 14px; color: var(--text); margin-bottom: 6px; line-height: 1.9; }

/* ---------- 筛选栏 ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-bar a {
  padding: 8px 20px; border-radius: 30px; font-size: 14px;
  border: 1px solid var(--line); background: #fff; color: var(--text);
  transition: all .25s ease;
}
.filter-bar a:hover, .filter-bar a.is-active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 6px 16px rgba(37,99,235,.25); }

/* ---------- 搜索 ---------- */
.search-box { display: flex; gap: 12px; max-width: 520px; }
.search-box .form-control { border-radius: 40px; padding-left: 22px; }
.search-box .btn { border-radius: 40px; padding: 12px 26px; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s ease, transform .8s cubic-bezier(.22,.61,.36,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .step:not(:last-child)::after { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .about-grid { grid-template-columns: 1fr; gap: 60px; }
  .about-visual .float-card { left: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .slide { aspect-ratio: 16 / 8; }
}

@media (max-width: 900px) {
  .pd-grid { grid-template-columns: 1fr !important; gap: 28px !important; }
  .main-nav {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 24px 24px; box-shadow: 0 24px 40px rgba(10,30,60,.12);
    transform: translateY(-120%); transition: transform .4s ease; border-radius: 0 0 18px 18px;
  }
  .main-nav.is-open { transform: translateY(0); }
  .main-nav a { padding: 14px 8px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .main-nav a::after { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .hero-stats { gap: 24px; }
  .hero-stat { min-width: calc(50% - 12px); }
  .form-row { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 28px; }
  .detail-wrap { padding: 28px 20px; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .slide { aspect-ratio: 16 / 9; }
  .slide .slide-copy { left: 8%; right: 8%; }
}

/* ============================================================
   科技感增强 - 星际 HUD 工程界面
   ============================================================ */

/* ---------- 全局噪点纹理（营造硬件颗粒感） ---------- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9990;
  pointer-events: none;
  opacity: .045;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='120' height='120' filter='url(%23n)' opacity='0.6'/></svg>");
  background-size: 120px 120px;
}

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px; width: 0;
  background: var(--grad);
  z-index: 2000;
  box-shadow: 0 0 14px rgba(34, 211, 238, .6), 0 0 4px rgba(37, 99, 235, .8);
}

/* ---------- 光标光晕（桌面端） ---------- */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 360px; height: 360px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, rgba(37,99,235,.09) 0%, rgba(6,182,212,.05) 42%, transparent 66%);
  transform: translate(-50%, -50%);
  will-change: transform;
}

/* ---------- HERO 星点背景 ---------- */
.hero-stars {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.9), transparent),
    radial-gradient(1px 1px at 28% 68%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.5px 1.5px at 41% 16%, rgba(125,211,252,.85), transparent),
    radial-gradient(1px 1px at 55% 44%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 63% 82%, rgba(125,211,252,.7), transparent),
    radial-gradient(1.5px 1.5px at 74% 30%, rgba(255,255,255,.75), transparent),
    radial-gradient(1px 1px at 82% 60%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 90% 24%, rgba(125,211,252,.6), transparent),
    radial-gradient(1.5px 1.5px at 18% 84%, rgba(255,255,255,.55), transparent),
    radial-gradient(1px 1px at 47% 92%, rgba(255,255,255,.4), transparent);
  animation: starTwinkle 6s ease-in-out infinite;
}
@keyframes starTwinkle {
  0%, 100% { opacity: .55; }
  50% { opacity: 1; }
}

/* ---------- HERO 扫描线 ---------- */
.hero-scanline {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(90deg, transparent 5%, rgba(34,211,238,.55) 50%, transparent 95%);
  animation: scanMove 8s linear infinite;
}
@keyframes scanMove {
  0% { top: 14%; }
  50% { top: 86%; }
  100% { top: 14%; }
}

/* ---------- HERO HUD 角标 ---------- */
.hud-corner {
  position: absolute;
  width: 34px; height: 34px;
  z-index: 3;
  pointer-events: none;
  border: 2px solid rgba(56, 189, 248, .55);
  filter: drop-shadow(0 0 6px rgba(56,189,248,.4));
  animation: cornerPulse 3.5s ease-in-out infinite;
}
@keyframes cornerPulse {
  0%, 100% { opacity: .8; }
  50% { opacity: .35; }
}
.hud-tl { top: 84px; left: 22px; border-right: 0; border-bottom: 0; }
.hud-tr { top: 84px; right: 22px; border-left: 0; border-bottom: 0; }
.hud-bl { bottom: 56px; left: 22px; border-right: 0; border-top: 0; }
.hud-br { bottom: 56px; right: 22px; border-left: 0; border-top: 0; }

/* ---------- HERO 文本发光 ---------- */
.hero-title { text-shadow: 0 0 34px rgba(37, 99, 235, .28); }
.hero-tag { box-shadow: 0 0 20px rgba(56, 189, 248, .16), inset 0 0 12px rgba(56,189,248,.06); }

/* ---------- 区块标题自动编号 + 发光 ---------- */
.section-head { counter-increment: sec; }
.section-head .kicker::before {
  content: "/ " counter(sec, decimal-leading-zero) " · ";
  width: auto; height: auto;
  background: none;
  font-weight: 700;
  color: var(--primary-2);
}
.kicker { text-shadow: 0 0 12px rgba(56, 189, 248, .4); }
.section-title em { filter: drop-shadow(0 0 14px rgba(37,99,235,.35)); }
.section-en {
  color: transparent;
  -webkit-text-stroke: 1px rgba(37, 99, 235, .12);
  text-shadow: 0 0 24px rgba(37,99,235,.05);
}

/* ---------- 按钮流光扫描 + 剪角 ---------- */
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: '';
  position: absolute;
  top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.38), transparent);
  transform: skewX(-20deg);
  transition: left .55s ease;
  z-index: 1;
}
.btn:hover::after { left: 130%; }
.btn svg { position: relative; z-index: 2; }
.btn-primary {
  box-shadow: none;
  filter: drop-shadow(0 8px 18px rgba(37, 99, 235, .38));
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 14px 28px rgba(37, 99, 235, .5)) brightness(1.08);
}
.btn-white { clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px); box-shadow: none; }
.btn-white:hover { filter: drop-shadow(0 14px 26px rgba(0,0,0,.3)); }

/* ---------- 卡片 HUD 角标 + 渐变描边 ---------- */
.card { position: relative; }
.card::before,
.card::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transform: scale(.55);
  transition: all .32s ease;
}
.card::before {
  top: 12px; left: 12px;
  border-top: 2px solid var(--primary);
  border-left: 2px solid var(--primary);
}
.card::after {
  right: 12px; bottom: 12px;
  border-right: 2px solid var(--primary-2);
  border-bottom: 2px solid var(--primary-2);
}
.card:hover::before,
.card:hover::after {
  opacity: .85;
  transform: scale(1);
}
.card:hover {
  border-color: rgba(37, 99, 235, .45);
  box-shadow: var(--shadow-lg), 0 0 24px rgba(37, 99, 235, .14);
}

/* ---------- 特性卡片增强 ---------- */
.feature-card:hover .ico {
  box-shadow: 0 0 26px rgba(37, 99, 235, .5);
  transform: scale(1.04) rotate(-3deg);
}

/* ---------- 数字发光 ---------- */
.stat-item .num,
.hero-stat .num {
  text-shadow: 0 0 26px rgba(56, 189, 248, .4);
}
.about-list .tick { box-shadow: 0 0 14px rgba(37, 99, 235, .45); }

/* ---------- 轮播扫描微光 ---------- */
.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(125,211,252,.07), transparent);
  transform: translateX(-100%);
  animation: slideGlint 6s ease-in-out infinite;
}
@keyframes slideGlint {
  0%, 55% { transform: translateX(-100%); }
  85%, 100% { transform: translateX(100%); }
}

/* ---------- 页脚顶部光带 ---------- */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  z-index: 1;
  background: linear-gradient(90deg, transparent, var(--primary), var(--primary-2), transparent);
  box-shadow: 0 0 18px rgba(34, 211, 238, .5);
}

/* ---------- LOGO 与导航发光 ---------- */
.logo-mark { filter: drop-shadow(0 0 10px rgba(56, 189, 248, .45)); }
.main-nav a { letter-spacing: .04em; }

/* ---------- 筛选 / 分页 / 徽标发光 ---------- */
.filter-bar a:hover,
.filter-bar a.is-active {
  box-shadow: 0 0 18px rgba(37, 99, 235, .45);
}
.pager-btn:hover, .pager-num:hover, .pager-num.is-active {
  box-shadow: 0 0 16px rgba(37, 99, 235, .45);
}
.job-tag.hl { box-shadow: 0 0 12px rgba(37,99,235,.25); }
.spec-table th { background: linear-gradient(180deg, #F2F6FD, #EAF1FC); border-left: 2px solid var(--primary); }

/* ---------- 回到顶部 ---------- */
.back-top { clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); border-radius: 0; }

/* ---------- 小屏适配 ---------- */
@media (max-width: 900px) {
  .hud-corner { width: 22px; height: 22px; }
  .hud-tl, .hud-tr { top: 76px; }
}

/* ============================================================
   顶栏定制样式（仅作用于 header.site-header 内的元素）
   ============================================================ */

/* 元素1: header.site-header */
header.site-header {
  color: #2f7ef4;
  text-align: left;
  background-color: rgba(59, 130, 246, 0.17);
}

/* 元素2: header.site-header > div.container > a.logo */
header.site-header > div.container > a.logo {
  width: 264px;
  height: 64px;
  margin-left: -20px;
  margin-right: -20px;
  padding-top: 30px;
  padding-bottom: 30px;
}

/* 元素3: header.site-header > div.container */
header.site-header > div.container {
  color: #ffffff;
  background-color: transparent;
  line-height: 18px;
  letter-spacing: 0px;
  font-size: 14px;
  border-width: 0px;
  border-style: solid;
  border-color: #ffffff;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* 元素4: header.site-header > div.container > a.logo > span.logo-name > small */
header.site-header > div.container > a.logo > span.logo-name > small {
  width: 196px;
  height: 26px;
  padding-top: 1px;
  padding-bottom: 1px;
  margin-top: 5px;
  margin-bottom: 5px;
}

/* ============================================================
   科技风迭代 v2 - 透明玻璃导航 / HUD 遥测面板 / Hero 视差
   ============================================================ */

/* ---------- 透明导航：未滚动白色文字，滚动后深色 ---------- */
.site-header:not(.is-scrolled) .logo-name { color: #ffffff; }
.site-header:not(.is-scrolled) .logo-name small { color: #7DD3FC; text-shadow: 0 0 8px rgba(125,211,252,.5); }
.site-header:not(.is-scrolled) .main-nav a { color: rgba(255,255,255,.88); }
.site-header:not(.is-scrolled) .main-nav a:hover,
.site-header:not(.is-scrolled) .main-nav a.is-active { color: #ffffff; }
.site-header:not(.is-scrolled) .nav-toggle span { background: #ffffff; }

/* ---------- HUD 遥测数据面板 ---------- */
.hud-panel {
  position: absolute;
  left: 26px;
  bottom: 100px;
  z-index: 3;
  min-width: 172px;
  padding: 12px 16px 10px;
  background: rgba(10, 30, 60, .45);
  border: 1px solid rgba(56, 189, 248, .22);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  font-family: var(--font-display);
}
.hud-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 24px; height: 2px;
  background: var(--grad);
  box-shadow: 0 0 10px rgba(34, 211, 238, .7);
}
.hud-panel-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 3px 0;
  font-size: 11px;
  letter-spacing: .12em;
}
.hp-key { color: rgba(125, 211, 252, .55); }
.hp-val { color: #7DD3FC; font-weight: 700; }
.hp-ok { color: #34D399; text-shadow: 0 0 8px rgba(52, 211, 153, .55); }
.hp-time { color: #FDE68A; text-shadow: 0 0 8px rgba(253, 230, 138, .45); font-variant-numeric: tabular-nums; }

/* ---------- Hero 滚动视差容器 ---------- */
.hero-content {
  will-change: transform, opacity;
}

/* ---------- 小屏适配 ---------- */
@media (max-width: 900px) {
  .hud-panel { display: none; }
  /* 移动端展开菜单时导航文字保持深色，避免白底白字 */
  .site-header:not(.is-scrolled) .main-nav a { color: var(--text); }
  .site-header:not(.is-scrolled) .main-nav a:hover,
  .site-header:not(.is-scrolled) .main-nav a.is-active { color: var(--primary); }
  .site-header:not(.is-scrolled) .nav-toggle span { background: #ffffff; }
}