/* ============================================================
   苏州摩动网络科技有限公司 · 官网样式表
   深色科技感主题 · 全站共享
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  /* 主色 · 科技蓝 */
  --primary: #2f7dff;
  --primary-light: #5c9cff;
  --primary-dark: #1b5fd9;
  --accent: #00d4ff;
  --accent2: #7c6cff;

  /* 深色底 */
  --bg: #0a0f1e;
  --bg-2: #0e1628;
  --bg-3: #131d33;
  --panel: rgba(255, 255, 255, .03);
  --panel-border: rgba(255, 255, 255, .08);

  /* 文字 */
  --text: #e8eef7;
  --text-2: #a9b6c9;
  --text-3: #6b7a92;

  /* 其他 */
  --gradient: linear-gradient(135deg, #2f7dff 0%, #7c6cff 60%, #00d4ff 100%);
  --gradient-soft: linear-gradient(135deg, rgba(47,125,255,.15), rgba(124,108,255,.15));
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 34px rgba(0, 0, 0, .35);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, .45);
  --glow: 0 0 30px rgba(47, 125, 255, .25);
  --transition: .3s cubic-bezier(.4, 0, .2, 1);

  /* 字体 */
  --font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

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

body.no-scroll { overflow: hidden; }

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }

.container { width: min(1200px, 92%); margin-inline: auto; }

.section { padding: 90px 0; position: relative; }
.section-sm { padding: 60px 0; }

/* 渐变文字 */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- 通用工具 ---------- */
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0, 212, 255, .08);
  border: 1px solid rgba(0, 212, 255, .2);
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.section-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }

.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; line-height: 1.3; margin-bottom: 14px; }

.section-desc { color: var(--text-2); font-size: 16px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn i { font-size: 13px; transition: transform var(--transition); }
.btn:hover i { transform: translateX(4px); }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 22px rgba(47, 125, 255, .35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(47, 125, 255, .5); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--panel-border);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--accent); transform: translateY(-3px); background: rgba(47,125,255,.06); }

.btn-outline-accent {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid rgba(0, 212, 255, .4);
}
.btn-outline-accent:hover { background: rgba(0, 212, 255, .1); border-color: var(--accent); transform: translateY(-3px); }

.btn-sm { padding: 9px 20px; font-size: 13.5px; }
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-block { width: 100%; }

.link-arrow { font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.link-arrow:hover { gap: 12px; }

/* ---------- 滚动显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- 页面标题横幅 ---------- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: radial-gradient(1000px 500px at 80% -10%, rgba(47,125,255,.18), transparent 60%),
              radial-gradient(800px 400px at 10% 10%, rgba(124,108,255,.12), transparent 60%),
              var(--bg);
  border-bottom: 1px solid var(--panel-border);
  overflow: hidden;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .ph-tag { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.page-hero .ph-tag i { font-size: 15px; }
.page-hero h1 { font-size: clamp(34px, 5vw, 52px); font-weight: 900; line-height: 1.25; margin-bottom: 16px; letter-spacing: -1px; }
.page-hero p { color: var(--text-2); font-size: 17px; max-width: 640px; }

/* ============================================================
   顶部导航
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
}
.header.scrolled {
  padding: 10px 0;
  background: rgba(10, 15, 30, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, .3);
}

.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--gradient);
  color: #fff;
  font-size: 20px;
  box-shadow: 0 6px 16px rgba(47, 125, 255, .4);
}
.brand-text { font-size: 18px; font-weight: 800; letter-spacing: 1px; display: flex; flex-direction: column; line-height: 1.2; color: #fff; }
.brand-sub { font-size: 9px; font-weight: 500; letter-spacing: 3px; color: var(--text-3); }

.nav { display: flex; align-items: center; gap: 26px; }
.nav-list { display: flex; align-items: center; gap: 6px; }
.nav-link {
  font-size: 15px; font-weight: 500;
  color: var(--text-2);
  position: relative;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { transform: scaleX(1); }

.nav-cta { flex-shrink: 0; }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 1002; }
.hamburger span { width: 24px; height: 2.5px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============================================================
   首页 · Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 90px;
  overflow: hidden;
  background: var(--bg);
}

/* 粒子画布 */
#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: .9;
}

/* 电路板装饰 */
.circuit-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: .5; }
.circuit-bg::before, .circuit-bg::after { content: ""; position: absolute; }
.circuit-bg::before {
  top: -40px; right: -40px;
  width: 420px; height: 420px;
  border: 1px solid rgba(47, 125, 255, .18);
  border-radius: 20px;
  transform: rotate(15deg);
  box-shadow: inset 0 0 40px rgba(47, 125, 255, .05);
}
.circuit-bg::after {
  bottom: -80px; left: -60px;
  width: 380px; height: 380px;
  border: 1px solid rgba(124, 108, 255, .15);
  border-radius: 50%;
  box-shadow: inset 0 0 60px rgba(124, 108, 255, .05);
}

.hero-orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: .4; z-index: 0; }
.hero-orb.o1 { width: 480px; height: 480px; background: #2f7dff; top: -160px; right: -80px; animation: orbFloat 10s ease-in-out infinite; }
.hero-orb.o2 { width: 400px; height: 400px; background: #7c6cff; bottom: -160px; left: -60px; animation: orbFloat 13s ease-in-out infinite reverse; }

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -24px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 50px;
  background: rgba(47, 125, 255, .1);
  border: 1px solid rgba(47, 125, 255, .3);
  color: var(--accent);
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 26px;
  letter-spacing: .5px;
}
.hero-badge .live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); position: relative; }
.hero-badge .live-dot::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--accent); opacity: .5; animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { transform: scale(.6); opacity: .6; } 100% { transform: scale(1.4); opacity: 0; } }

.hero-title { font-size: clamp(38px, 5.4vw, 60px); font-weight: 900; line-height: 1.2; margin-bottom: 24px; letter-spacing: -1px; }

.hero-desc { color: var(--text-2); font-size: 17px; max-width: 540px; margin-bottom: 36px; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-points { display: flex; gap: 30px; flex-wrap: wrap; }
.hero-points .hp { display: flex; align-items: center; gap: 10px; color: var(--text-2); font-size: 14px; }
.hero-points .hp i { color: var(--accent); font-size: 16px; }

/* Hero 右侧 · 产品板卡展示 */
.hero-visual { position: relative; min-height: 440px; perspective: 1200px; }

.board-visual {
  position: relative;
  z-index: 2;
  background: linear-gradient(145deg, #16233f, #0f1a30);
  border: 1px solid rgba(47, 125, 255, .25);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-lg), var(--glow);
  transform: rotateY(-8deg) rotateX(4deg);
  animation: boardFloat 7s ease-in-out infinite;
}

@keyframes boardFloat {
  0%, 100% { transform: rotateY(-8deg) rotateX(4deg) translateY(0); }
  50% { transform: rotateY(-8deg) rotateX(4deg) translateY(-14px); }
}

.board-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.board-name { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; }
.board-name i { color: var(--accent); }
.board-status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-2); }
.board-status .live-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; }

/* PCB 电路板 */
.pcb {
  position: relative;
  background: linear-gradient(135deg, #0d6b3a, #0a5230);
  border-radius: 14px;
  padding: 24px;
  height: 300px;
  overflow: hidden;
  border: 1px solid rgba(34, 197, 94, .3);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, .5);
}
.pcb-trace { position: absolute; background: rgba(34, 197, 94, .5); }
.pcb-chip {
  position: absolute;
  background: linear-gradient(145deg, #1b2a3a, #0e1824);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .5);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 9px;
  color: #9fb8d0;
  letter-spacing: .5px;
}
.pcb-chip.gpu {
  width: 130px; height: 90px;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, #2f7dff, #1b5fd9);
  box-shadow: 0 0 30px rgba(47, 125, 255, .6);
}
.pcb-chip.c1 { width: 46px; height: 46px; left: 8%; top: 8%; }
.pcb-chip.c2 { width: 46px; height: 46px; right: 8%; top: 8%; }
.pcb-chip.c3 { width: 60px; height: 40px; left: 10%; bottom: 12%; }
.pcb-chip.c4 { width: 60px; height: 40px; right: 10%; bottom: 12%; }
.pcb-port { position: absolute; width: 8px; background: #c9a227; opacity: .8; }
.pcb-port.p1 { left: 0; top: 30%; height: 50px; border-radius: 0 3px 3px 0; }
.pcb-port.p2 { left: 0; top: 65%; height: 50px; border-radius: 0 3px 3px 0; }
.pcb-port.p3 { right: 0; top: 40%; height: 44px; border-radius: 3px 0 0 3px; }

.board-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--panel-border); }
.board-spec { display: flex; gap: 24px; }
.board-spec .bs { text-align: center; }
.board-spec .bs strong { display: block; font-size: 17px; font-weight: 800; color: #fff; font-family: var(--font-mono); }
.board-spec .bs span { font-size: 11px; color: var(--text-3); }
.board-cpu { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-2); }
.board-cpu i { color: var(--accent); }

/* 浮动标签 */
.float-chip { position: absolute; z-index: 3; background: rgba(19, 29, 51, .9); border: 1px solid var(--panel-border); border-radius: 14px; padding: 14px 18px; backdrop-filter: blur(8px); box-shadow: var(--shadow); display: flex; align-items: center; gap: 12px; animation: chipFloat 8s ease-in-out infinite; }
.float-chip .fc-icon { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--gradient); color: #fff; font-size: 17px; }
.float-chip .fc-num { font-size: 17px; font-weight: 800; line-height: 1.2; color: #fff; }
.float-chip .fc-label { font-size: 11px; color: var(--text-3); }
.float-chip.fc-a { top: 30px; left: -40px; animation-delay: 0s; }
.float-chip.fc-b { bottom: 40px; right: -30px; animation-delay: 1.5s; }

@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============================================================
   品牌条
   ============================================================ */
.logos { padding: 36px 0; border-top: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border); background: var(--bg-2); }
.logos-title { text-align: center; font-size: 12.5px; letter-spacing: 3px; color: var(--text-3); margin-bottom: 26px; text-transform: uppercase; }
.logos-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.logo-item { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 700; color: var(--text-3); opacity: .6; filter: grayscale(1); transition: var(--transition); }
.logo-item i { font-size: 22px; }
.logo-item:hover { opacity: 1; filter: none; color: var(--text); }

/* ============================================================
   核心能力
   ============================================================ */
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.cap-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.cap-card::before { content: ""; position: absolute; inset: 0; background: var(--gradient); opacity: 0; transition: opacity var(--transition); z-index: 0; }
.cap-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.cap-card:hover::before { opacity: 1; }
.cap-card > * { position: relative; z-index: 1; }

.cap-icon {
  width: 62px; height: 62px;
  border-radius: 16px;
  display: grid; place-items: center;
  font-size: 25px;
  color: var(--accent);
  background: var(--gradient-soft);
  border: 1px solid rgba(47,125,255,.2);
  margin-bottom: 22px;
  transition: var(--transition);
}
.cap-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.cap-card p { color: var(--text-2); font-size: 14px; transition: color var(--transition); }
.cap-card:hover .cap-icon { background: #fff; color: var(--primary); border-color: transparent; }
.cap-card:hover p { color: rgba(255,255,255,.9); }

/* ============================================================
   产品亮点入口
   ============================================================ */
.product-entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.product-entry {
  background: var(--bg-2);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: block;
}
.product-entry:hover { transform: translateY(-8px); border-color: rgba(47,125,255,.4); box-shadow: var(--shadow-lg); }

.pe-visual { position: relative; height: 200px; overflow: hidden; background: var(--bg-3); }
.pe-visual .pe-illus { position: absolute; inset: 0; display: grid; place-items: center; transition: transform .6s ease; }
.product-entry:hover .pe-visual .pe-illus { transform: scale(1.1); }
.pe-illus i { font-size: 64px; color: var(--primary-light); opacity: .7; filter: drop-shadow(0 8px 20px rgba(47,125,255,.4)); }
.pe-badge { position: absolute; top: 16px; left: 16px; padding: 5px 14px; border-radius: 50px; background: rgba(10,15,30,.8); border: 1px solid var(--panel-border); color: var(--accent); font-size: 12px; font-weight: 600; backdrop-filter: blur(6px); }

.pe-body { padding: 26px 24px; }
.pe-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.pe-body p { font-size: 14px; color: var(--text-2); margin-bottom: 18px; }
.pe-features { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.pe-features span { font-size: 12px; color: var(--text-3); display: flex; align-items: center; gap: 6px; }
.pe-features i { color: var(--accent); font-size: 12px; }

/* ============================================================
   数据背书
   ============================================================ */
.stats-band { background: var(--bg-2); border-top: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding: 60px 0; }

.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after { content: ""; position: absolute; right: -15px; top: 50%; transform: translateY(-50%); width: 1px; height: 60px; background: var(--panel-border); }
.stat-icon { font-size: 26px; color: var(--accent); margin-bottom: 14px; }
.stat-num { font-size: clamp(34px, 4.5vw, 46px); font-weight: 900; color: #fff; line-height: 1.2; font-family: var(--font-mono); }
.stat-label { color: var(--text-2); font-size: 15px; margin-top: 6px; }

/* ============================================================
   案例精选
   ============================================================ */
.case-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--panel-border);
  transition: var(--transition);
  display: block;
}
.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(47,125,255,.4); }

.case-img { position: relative; height: 220px; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.case-card:hover .case-img img { transform: scale(1.08); }
.case-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,15,30,.9), transparent 60%); opacity: 0; transition: opacity var(--transition); }
.case-card:hover .case-img::after { opacity: 1; }
.case-cat { position: absolute; top: 16px; left: 16px; z-index: 2; padding: 5px 14px; border-radius: 50px; background: rgba(10,15,30,.85); border: 1px solid var(--panel-border); color: var(--accent); font-size: 12px; font-weight: 600; }
.case-overlay { position: absolute; inset: 0; z-index: 2; display: flex; align-items: flex-end; padding: 20px; opacity: 0; transform: translateY(10px); transition: var(--transition); }
.case-card:hover .case-overlay { opacity: 1; transform: translateY(0); }
.case-overlay h4 { color: #fff; font-size: 17px; font-weight: 700; }

.case-body { padding: 24px; }
.case-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: #fff; }
.case-body p { font-size: 13.5px; color: var(--text-2); margin-bottom: 16px; }
.case-metrics { display: flex; gap: 24px; }
.case-metrics span { font-size: 12px; color: var(--text-3); display: flex; flex-direction: column; }
.case-metrics strong { font-size: 18px; color: var(--accent); font-family: var(--font-mono); font-weight: 800; }

.center-cta { text-align: center; margin-top: 44px; }

/* ============================================================
   关于简介
   ============================================================ */
.about-intro-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }

.about-intro .section-tag { margin-bottom: 18px; }
.about-intro .section-title { margin-bottom: 20px; }
.about-intro .section-desc { margin-bottom: 28px; }

.intro-points { display: grid; gap: 18px; margin-bottom: 34px; }
.intro-point { display: flex; gap: 16px; }
.intro-point .ip-icon { width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; display: grid; place-items: center; background: var(--gradient-soft); color: var(--accent); font-size: 18px; border: 1px solid rgba(47,125,255,.2); }
.intro-point h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: #fff; }
.intro-point p { font-size: 13.5px; color: var(--text-2); }

.about-visual { position: relative; }
.about-img-main { border-radius: 20px; overflow: hidden; border: 1px solid var(--panel-border); box-shadow: var(--shadow); aspect-ratio: 4 / 3; }
.about-img-main img { width: 100%; height: 100%; object-fit: cover; }

.about-float {
  position: absolute;
  right: -20px; bottom: -28px;
  background: rgba(19,29,51,.95);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 18px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  animation: chipFloat 8s ease-in-out infinite;
}
.about-float .af-num { font-size: 28px; font-weight: 900; color: var(--accent); font-family: var(--font-mono); line-height: 1.2; }
.about-float .af-num span { font-size: 14px; }
.about-float .af-label { font-size: 12px; color: var(--text-3); }

/* ============================================================
   联系转化 · 轻量表单
   ============================================================ */
.lead-section { background: radial-gradient(800px 400px at 20% 20%, rgba(47,125,255,.12), transparent 60%), var(--bg-2); border-top: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border); }

.lead-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: start; }

.lead-info h2 { font-size: clamp(26px, 3vw, 34px); font-weight: 800; margin-bottom: 16px; }
.lead-info > p { color: var(--text-2); margin-bottom: 30px; }
.lead-contact-list { display: grid; gap: 16px; }
.lead-contact { display: flex; align-items: center; gap: 14px; }
.lead-contact .lc-icon { width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px; display: grid; place-items: center; background: var(--gradient-soft); color: var(--accent); font-size: 17px; border: 1px solid rgba(47,125,255,.2); }
.lead-contact .lc-label { font-size: 12px; color: var(--text-3); }
.lead-contact .lc-value { font-size: 15px; font-weight: 600; color: #fff; }

.lead-form, .contact-form {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 36px 32px;
  backdrop-filter: blur(8px);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-group label span { color: var(--accent); }

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 15px;
  border: 1.5px solid var(--panel-border);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  background: rgba(10, 15, 30, .5);
  color: var(--text);
  transition: var(--transition);
  resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-3); }
.form-group select option { background: var(--bg-2); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(47, 125, 255, .12);
}

.form-group input.error, .form-group textarea.error { border-color: #ef4444; }
.form-error { display: none; color: #f87171; font-size: 12px; margin-top: 6px; }
.form-group.invalid .form-error { display: block; }

.form-tip { font-size: 12px; color: var(--text-3); text-align: center; margin-top: 14px; }

/* ============================================================
   关于我们页面
   ============================================================ */
/* 品牌故事 */
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.story-text .section-title { margin-bottom: 20px; }
.story-text p { color: var(--text-2); font-size: 15.5px; margin-bottom: 18px; }
.story-text .mv { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 26px; }
.mv-item { background: var(--panel); border: 1px solid var(--panel-border); border-radius: 14px; padding: 20px; }
.mv-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; color: #fff; display: flex; align-items: center; gap: 8px; }
.mv-item h4 i { color: var(--accent); }
.mv-item p { font-size: 13px; color: var(--text-2); margin: 0; }

/* 核心技术优势 */
.tech-adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tech-adv {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 34px 26px;
  transition: var(--transition);
}
.tech-adv:hover { transform: translateY(-6px); border-color: rgba(47,125,255,.4); box-shadow: var(--shadow); }
.tech-adv .ta-icon { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; background: var(--gradient); color: #fff; font-size: 22px; margin-bottom: 18px; box-shadow: 0 8px 20px rgba(47,125,255,.3); }
.tech-adv h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.tech-adv p { font-size: 13.5px; color: var(--text-2); }

/* 发展历程时间线 */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding: 20px 0; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%); background: linear-gradient(to bottom, transparent, var(--primary), var(--accent), transparent); }
.tl-item { position: relative; width: 50%; padding: 0 44px 56px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }
.tl-dot {
  position: absolute;
  top: 6px; right: -8px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(47,125,255,.2), 0 0 16px rgba(47,125,255,.5);
}
.tl-item:nth-child(even) .tl-dot { right: auto; left: -8px; }
.tl-year { font-size: 26px; font-weight: 900; color: var(--accent); font-family: var(--font-mono); line-height: 1; margin-bottom: 8px; }
.tl-title { font-size: 17px; font-weight: 700; margin-bottom: 6px; color: #fff; }
.tl-desc { font-size: 13.5px; color: var(--text-2); }

/* 资质荣誉 */
.qual-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.qual-card { background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 30px 20px; text-align: center; transition: var(--transition); }
.qual-card:hover { border-color: rgba(47,125,255,.4); transform: translateY(-6px); }
.qual-card .q-icon { width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 14px; display: grid; place-items: center; background: var(--gradient-soft); color: var(--accent); font-size: 24px; }
.qual-card h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.qual-card p { font-size: 12.5px; color: var(--text-3); }

/* ============================================================
   产品与方案页面
   ============================================================ */
/* 产品 Tab */
.product-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }
.product-tabs .ptab {
  padding: 11px 26px;
  border-radius: 50px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-2);
  border: 1.5px solid var(--panel-border);
  transition: var(--transition);
  background: transparent;
}
.product-tabs .ptab:hover { color: #fff; border-color: rgba(47,125,255,.4); }
.product-tabs .ptab.active { background: var(--gradient); color: #fff; border-color: transparent; box-shadow: 0 8px 22px rgba(47,125,255,.35); }

/* 产品板块 */
.product-block { margin-bottom: 80px; }
.product-block:last-child { margin-bottom: 0; }
.pb-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 32px; flex-wrap: wrap; }
.pb-head .pb-title h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin-bottom: 6px; }
.pb-head .pb-title p { color: var(--text-2); font-size: 14.5px; }

.product-card {
  background: var(--bg-2);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-8px); border-color: rgba(47,125,255,.4); box-shadow: var(--shadow-lg); }

.pc-visual { position: relative; height: 200px; background: var(--bg-3); overflow: hidden; display: grid; place-items: center; }
.pc-visual i { font-size: 70px; color: var(--primary-light); opacity: .75; filter: drop-shadow(0 10px 24px rgba(47,125,255,.45)); transition: transform .6s ease; }
.product-card:hover .pc-visual i { transform: scale(1.12); }
.pc-visual .pc-badge { position: absolute; top: 16px; right: 16px; padding: 4px 12px; border-radius: 50px; background: rgba(10,15,30,.8); border: 1px solid rgba(47,125,255,.3); color: var(--accent); font-size: 12px; font-weight: 600; }
.pc-visual .pc-model { position: absolute; bottom: 14px; left: 16px; font-family: var(--font-mono); font-size: 12px; color: var(--text-2); background: rgba(10,15,30,.8); padding: 4px 12px; border-radius: 6px; border: 1px solid var(--panel-border); }

.pc-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.pc-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: #fff; }
.pc-body > p { font-size: 13.5px; color: var(--text-2); margin-bottom: 16px; }

.pc-specs { display: grid; gap: 8px; margin-bottom: 18px; }
.pc-specs .spec { display: flex; justify-content: space-between; font-size: 12.5px; padding-bottom: 8px; border-bottom: 1px dashed var(--panel-border); }
.pc-specs .spec span:first-child { color: var(--text-3); }
.pc-specs .spec span:last-child { color: var(--text); font-weight: 600; font-family: var(--font-mono); }

.pc-app { font-size: 12.5px; color: var(--text-3); margin-bottom: 18px; }
.pc-app strong { color: var(--accent); font-weight: 600; }

.pc-actions { margin-top: auto; display: flex; gap: 10px; }
.pc-actions .btn { flex: 1; padding: 10px 16px; font-size: 13.5px; }

.product-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

/* AI BOX 介绍 */
.box-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; background: var(--bg-2); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 44px; }
.box-visual { position: relative; }
.box-device {
  background: linear-gradient(145deg, #16233f, #0f1a30);
  border: 1px solid rgba(47,125,255,.25);
  border-radius: 18px;
  padding: 26px;
  aspect-ratio: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px;
  box-shadow: var(--shadow-lg), var(--glow);
}
.box-device .bd-icon { font-size: 56px; color: var(--accent); filter: drop-shadow(0 8px 20px rgba(0,212,255,.4)); }
.box-device .bd-name { font-size: 17px; font-weight: 800; color: #fff; }
.box-device .bd-detail { display: flex; gap: 20px; }
.box-device .bd-detail span { text-align: center; font-size: 11px; color: var(--text-3); }
.box-device .bd-detail strong { display: block; font-size: 15px; color: var(--text); font-family: var(--font-mono); }
.box-ring { position: absolute; inset: -12px; border: 1.5px dashed rgba(47,125,255,.3); border-radius: 22px; animation: spin 20s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.box-info .section-tag { margin-bottom: 18px; }
.box-info h3 { font-size: clamp(24px, 3vw, 30px); font-weight: 800; margin-bottom: 14px; }
.box-info > p { color: var(--text-2); font-size: 15px; margin-bottom: 24px; }
.box-scenes { display: grid; gap: 12px; margin-bottom: 26px; }
.box-scene { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-2); }
.box-scene i { color: var(--accent); }

/* 软硬件能力 */
.dev-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.dev-col { background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 36px 30px; }
.dev-col .dev-head { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.dev-col .dev-head .dh-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--gradient); color: #fff; font-size: 22px; }
.dev-col .dev-head h3 { font-size: 19px; font-weight: 800; }
.dev-col .dev-head span { font-size: 12px; color: var(--text-3); }
.dev-items { display: grid; gap: 20px; }
.dev-item { padding-left: 20px; border-left: 2px solid rgba(47,125,255,.3); }
.dev-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; color: #fff; }
.dev-item p { font-size: 13px; color: var(--text-2); }

/* 定制流程 */
.custom-flow { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.cf-step { flex: 1; min-width: 150px; text-align: center; position: relative; padding: 0 10px; }
.cf-num { font-size: 50px; font-weight: 900; color: transparent; -webkit-text-stroke: 1.5px rgba(47,125,255,.4); font-family: var(--font-mono); line-height: 1; margin-bottom: 18px; }
.cf-icon { width: 62px; height: 62px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 1px solid rgba(47,125,255,.3); color: var(--accent); font-size: 24px; transition: var(--transition); }
.cf-step:hover .cf-icon { background: var(--gradient); color: #fff; transform: scale(1.1); box-shadow: var(--glow); }
.cf-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: #fff; }
.cf-step p { font-size: 12.5px; color: var(--text-2); }
.cf-arrow { display: flex; align-items: center; color: var(--primary); font-size: 18px; padding-top: 30px; }

/* ============================================================
   案例展示页面
   ============================================================ */
.filter-bar { display: flex; justify-content: center; gap: 12px; margin-bottom: 44px; flex-wrap: wrap; }
.filter-btn {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  border: 1.5px solid var(--panel-border);
  transition: var(--transition);
}
.filter-btn:hover { color: #fff; border-color: rgba(47,125,255,.4); }
.filter-btn.active { background: var(--gradient); color: #fff; border-color: transparent; box-shadow: 0 8px 22px rgba(47,125,255,.35); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-item { opacity: 1; transform: scale(1); transition: opacity .4s ease, transform .4s ease; }
.case-item.hide { display: none; }

/* 案例详情弹窗 */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1500;
  background: rgba(10, 15, 30, .85);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
}
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-2);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  max-width: 760px; width: 100%;
  max-height: 88vh; overflow-y: auto;
  transform: translateY(30px) scale(.97);
  transition: var(--transition);
}
.modal-overlay.show .modal { transform: translateY(0) scale(1); }
.modal-head { position: relative; height: 240px; overflow: hidden; }
.modal-head img { width: 100%; height: 100%; object-fit: cover; }
.modal-head::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, var(--bg-2), transparent 70%); }
.modal-close { position: absolute; top: 16px; right: 16px; z-index: 2; width: 40px; height: 40px; border-radius: 50%; background: rgba(10,15,30,.7); color: #fff; display: grid; place-items: center; font-size: 16px; backdrop-filter: blur(6px); transition: var(--transition); }
.modal-close:hover { background: #ef4444; }
.modal-cat { position: absolute; bottom: 40px; left: 28px; z-index: 2; }
.modal-body { padding: 28px; }
.modal-body h3 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.modal-body .m-meta { font-size: 13px; color: var(--text-3); margin-bottom: 20px; }
.modal-section { margin-bottom: 24px; }
.modal-section h4 { font-size: 16px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; color: #fff; }
.modal-section h4 i { color: var(--accent); }
.modal-section p, .modal-section li { font-size: 14px; color: var(--text-2); }
.modal-section ul { padding-left: 18px; }
.modal-section ul li { list-style: disc; margin-bottom: 6px; }
.modal-result { display: flex; gap: 24px; flex-wrap: wrap; }
.modal-result .mr { background: var(--panel); border: 1px solid var(--panel-border); border-radius: 12px; padding: 14px 20px; text-align: center; }
.modal-result .mr strong { display: block; font-size: 22px; color: var(--accent); font-family: var(--font-mono); }
.modal-result .mr span { font-size: 12px; color: var(--text-3); }

/* ============================================================
   新闻动态页面
   ============================================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-item { background: var(--bg-2); border: 1px solid var(--panel-border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); display: flex; flex-direction: column; }
.news-item:hover { transform: translateY(-8px); border-color: rgba(47,125,255,.4); box-shadow: var(--shadow-lg); }
.news-thumb { position: relative; height: 190px; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.news-item:hover .news-thumb img { transform: scale(1.08); }
.news-cat { position: absolute; top: 14px; left: 14px; padding: 4px 13px; border-radius: 50px; background: rgba(10,15,30,.85); border: 1px solid rgba(47,125,255,.3); color: var(--accent); font-size: 12px; font-weight: 600; }
.news-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.news-date { font-size: 12px; color: var(--text-3); font-family: var(--font-mono); margin-bottom: 10px; }
.news-body h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 10px; color: #fff; line-height: 1.5; }
.news-body p { font-size: 13.5px; color: var(--text-2); margin-bottom: 18px; flex: 1; }
.news-more { color: var(--accent); font-size: 13.5px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.news-more:hover { gap: 12px; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 50px; }
.page-btn { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; border: 1.5px solid var(--panel-border); color: var(--text-2); font-size: 14px; transition: var(--transition); }
.page-btn:hover { border-color: rgba(47,125,255,.4); color: #fff; }
.page-btn.active { background: var(--gradient); color: #fff; border-color: transparent; }

/* ============================================================
   联系我们页面
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; align-items: start; }
.contact-info-card { display: grid; gap: 20px; }
.cinfo { display: flex; gap: 16px; background: var(--panel); border: 1px solid var(--panel-border); border-radius: 14px; padding: 22px; transition: var(--transition); }
.cinfo:hover { border-color: rgba(47,125,255,.4); transform: translateX(6px); }
.cinfo .ci-icon { width: 50px; height: 50px; flex-shrink: 0; border-radius: 13px; display: grid; place-items: center; background: var(--gradient-soft); color: var(--accent); font-size: 19px; border: 1px solid rgba(47,125,255,.2); }
.cinfo h5 { font-size: 15px; font-weight: 700; margin-bottom: 4px; color: #fff; }
.cinfo p { font-size: 13.5px; color: var(--text-2); }

.contact-form-card { background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 36px 32px; }
.contact-form-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.contact-form-card .cf-sub { font-size: 13.5px; color: var(--text-3); margin-bottom: 28px; }

/* 地图 */
.map-wrap { margin-top: 56px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--panel-border); }
.map-wrap iframe { width: 100%; height: 420px; border: 0; display: block; filter: grayscale(.2) contrast(1.05); }

/* ============================================================
   全站 CTA 横幅
   ============================================================ */
.cta-band {
  background: radial-gradient(800px 300px at 80% 20%, rgba(0,212,255,.18), transparent 60%), var(--gradient);
  border-radius: 24px;
  margin: 20px auto;
  max-width: min(1200px, 92%);
  overflow: hidden;
  position: relative;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 48px 7%; flex-wrap: wrap; position: relative; z-index: 1; }
.cta-text h2 { color: #fff; font-size: clamp(22px, 3vw, 30px); font-weight: 800; margin-bottom: 6px; }
.cta-text p { color: rgba(255,255,255,.85); font-size: 14.5px; }
.btn-light { background: #fff; color: var(--primary-dark); }
.btn-light:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(0,0,0,.25); }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: var(--bg-2); border-top: 1px solid var(--panel-border); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 50px; }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.9; color: var(--text-2); max-width: 320px; }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-social a { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: rgba(255,255,255,.06); color: var(--text-2); font-size: 15px; transition: var(--transition); }
.footer-social a:hover { background: var(--gradient); color: #fff; transform: translateY(-3px); }
.footer-col h5 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 22px; }
.footer-col ul { display: grid; gap: 12px; }
.footer-col ul a { font-size: 14px; color: var(--text-2); transition: var(--transition); }
.footer-col ul a:hover { color: #fff; padding-left: 6px; }
.footer-contact li { font-size: 13.5px; color: var(--text-2); display: flex; align-items: flex-start; gap: 10px; }
.footer-contact i { color: var(--accent); width: 18px; margin-top: 4px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 22px 0; border-top: 1px solid var(--panel-border); font-size: 13px; color: var(--text-3); }
.footer-bottom a { transition: var(--transition); }
.footer-bottom a:hover { color: #fff; }

/* ============================================================
   浮动元素
   ============================================================ */
.back-top { position: fixed; right: 28px; bottom: 28px; width: 48px; height: 48px; border-radius: 50%; background: var(--gradient); color: #fff; font-size: 17px; box-shadow: 0 10px 24px rgba(47,125,255,.4); display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(16px); transition: var(--transition); z-index: 998; }
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: translateY(-4px); }

.toast { position: fixed; top: 90px; left: 50%; transform: translateX(-50%) translateY(-20px); background: #1a2335; border: 1px solid rgba(47,125,255,.4); color: var(--text); padding: 15px 26px; border-radius: 50px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; opacity: 0; visibility: hidden; transition: var(--transition); z-index: 2000; }
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast i { color: #22c55e; font-size: 18px; }

/* 全局咨询弹窗 */
.lead-modal { position: fixed; inset: 0; z-index: 1500; background: rgba(10,15,30,.88); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; visibility: hidden; transition: var(--transition); }
.lead-modal.show { opacity: 1; visibility: visible; }
.lead-modal .lead-modal-box { background: var(--bg-2); border: 1px solid var(--panel-border); border-radius: var(--radius); max-width: 560px; width: 100%; padding: 36px; position: relative; transform: translateY(30px); transition: var(--transition); }
.lead-modal.show .lead-modal-box { transform: translateY(0); }
.lead-modal-box h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.lead-modal-box .lm-sub { font-size: 13.5px; color: var(--text-3); margin-bottom: 26px; }
.lead-modal-close { position: absolute; top: 18px; right: 18px; width: 36px; height: 36px; border-radius: 50%; background: var(--panel); color: var(--text-2); display: grid; place-items: center; transition: var(--transition); }
.lead-modal-close:hover { background: #ef4444; color: #fff; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .capability-grid, .tech-adv-grid, .qual-grid { grid-template-columns: repeat(2, 1fr); }
  .product-list { grid-template-columns: repeat(2, 1fr); }
  .case-grid, .case-feature-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .product-entry-grid { grid-template-columns: repeat(2, 1fr); }
  .float-chip.fc-a { left: -10px; }
  .float-chip.fc-b { right: -10px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .section { padding: 70px 0; }

  .hamburger { display: flex; }
  .nav {
    position: fixed;
    inset: 0;
    background: rgba(10, 15, 30, .97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 1001;
  }
  .nav.open { opacity: 1; visibility: visible; transform: translateX(0); }
  .nav-list { flex-direction: column; gap: 22px; }
  .nav-link { font-size: 19px; font-weight: 600; }
  .nav-cta { display: none; }

  .hero { padding-top: 120px; }
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { max-width: 520px; margin: 0 auto; width: 100%; }

  .story-grid, .about-intro-grid, .lead-grid, .contact-grid, .box-feature { grid-template-columns: 1fr; }
  .dev-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .stat-item:nth-child(2)::after { display: none; }

  .timeline::before { left: 20px; }
  .tl-item, .tl-item:nth-child(odd), .tl-item:nth-child(even) { left: 0; width: 100%; padding: 0 0 44px 56px; text-align: left; }
  .tl-item:nth-child(odd) .tl-dot, .tl-item:nth-child(even) .tl-dot { left: 12px; right: auto; }

  .custom-flow { justify-content: center; }
  .cf-arrow { display: none; }

  .cta-inner { justify-content: center; text-align: center; }
}

@media (max-width: 600px) {
  .capability-grid, .tech-adv-grid, .qual-grid, .product-list, .case-grid, .case-feature-grid, .news-grid, .product-entry-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .float-chip { display: none; }
  .brand-sub { display: none; }
  .box-feature { padding: 30px 22px; }
  .stats-grid { gap: 34px 16px; }
  .mv-item { grid-template-columns: 1fr; }
}