/* ============================================================
   恒舟驭远 官网全局样式
   ------------------------------------------------------------
   ⚠️ 改主色调：只改下面 :root 里的颜色变量即可，全站会跟着变
   ============================================================ */
:root {
  --bg: #060b16;            /* 页面最深背景 */
  --bg-2: #0a1322;          /* 次级背景 */
  --surface: #0e1a2e;       /* 卡片背景 */
  --surface-2: #13243d;     /* 卡片悬停背景 */
  --border: rgba(130, 160, 200, 0.16);   /* 边框 */
  --text: #e9eef7;          /* 主文字 */
  --text-2: #9aa9bd;        /* 次要文字 */
  --text-3: #6d7c91;        /* 弱化文字 */
  --accent: #3ba1ff;        /* 主强调色（科技蓝） */
  --accent-2: #6fd8ff;      /* 辅助强调色（青） */
  --gold: #ffb454;          /* 点缀色（金） */
  --radius: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ============ Hero 左下角品牌区 ============ */
.hero-brand {
  position: absolute;
  left: 5%;
  bottom: 56px;
  z-index: 3;
  display: flex;
  align-items: flex-end;
  gap: 24px;
  max-width: 560px;
}
.hero-brand .qr {
  width: 130px;
  height: 130px;
  flex-shrink: 0;
  background: #ffffff;
  padding: 6px;
  border-radius: 8px;
  box-shadow: 0 8px 28px rgba(0,0,0,.35);
}
.hero-brand .qr img { width: 100%; height: 100%; display: block; }
.hero-brand .txt {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
  text-shadow: 0 1px 8px rgba(0,0,0,.5);
}
.hero-brand .txt .lead {
  display: block;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 4px;
  letter-spacing: 1px;
}
@media (max-width: 700px) {
  .hero-brand { left: 5%; right: 5%; bottom: 36px; gap: 16px; }
  .hero-brand .qr { width: 96px; height: 96px; }
  .hero-brand .txt { font-size: 13px; }
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ============ 顶部导航 ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 8% 18px 5%;
  transition: background .3s, padding .3s, box-shadow .3s;
}
.nav.scrolled {
  background: rgba(6, 11, 22, 0.85);
  backdrop-filter: blur(14px);
  padding: 10px 8% 10px 5%;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}
.nav .logo { display: flex; align-items: center; gap: 10px; }
.nav .logo img { height: 65px; width: auto; align-self: center; display: block; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  font-size: 15px;
  color: var(--text-2);
  transition: color .2s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--accent);
}
.nav .btn-contact {
  padding: 9px 20px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 30px;
  font-size: 14px;
  transition: all .25s;
}
.nav .btn-contact:hover { background: var(--accent); color: #04101f; }

/* ============ 导航下拉 ============ */
.nav-links .dropdown { position: relative; }
.nav-links .dropdown > a::after {
  content: "▾";
  font-size: 10px;
  margin-left: 6px;
  opacity: .7;
}
.nav-links .dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: -16px;
  min-width: 168px;
  padding: 8px;
  background: rgba(6, 11, 22, .96);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .45);
  display: none;
  z-index: 110;
}
/* 透明桥接：消除触发器和菜单之间的 hover 断层 */
.nav-links .dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 14px;
}
.nav-links .dropdown:hover .dropdown-menu,
.nav-links .dropdown.open .dropdown-menu { display: block; }
.nav-links .dropdown-menu a {
  display: block;
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-2);
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.nav-links .dropdown-menu a::after { content: none; }
.nav-links .dropdown-menu a:hover { background: var(--surface-2); color: var(--text); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none; border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: .3s;
}

/* ============ 首屏 Hero ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../assets/images/hero-bg-earth.png") center/cover no-repeat;
  background-color: #04080f;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    /* 让火箭尾焰区域稍亮、中部偏暗，保证左侧文字清晰可读 */
    linear-gradient(90deg, rgba(4,8,15,.78) 0%, rgba(4,8,15,.35) 35%, rgba(4,8,15,.05) 70%),
    linear-gradient(180deg, rgba(4,8,15,.55) 0%, rgba(4,8,15,.10) 40%, rgba(4,8,15,.85) 100%);
}
.hero-content { position: relative; z-index: 2; padding-top: 60px; }
.hero .eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--accent-2);
  border: 1px solid rgba(111, 216, 255, .4);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 60px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 2px;
  margin-bottom: 22px;
}
.hero h1 .en {
  display: block;
  font-size: clamp(14px, 1.6vw, 20px);
  font-weight: 400;
  letter-spacing: 6px;
  color: var(--text-2);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.hero .sub {
  font-size: clamp(16px, 1.8vw, 20px);
  color: var(--text-2);
  max-width: 620px;
  margin-bottom: 38px;
}
.hero .hero-tagline {
  font-size: clamp(17px, 2vw, 22px);
  color: var(--text);
  font-weight: 500;
  line-height: 2;
  max-width: 640px;
  margin-bottom: 38px;
  letter-spacing: 1px;
  text-shadow: 0 1px 12px rgba(0,0,0,.55);
}
.footer .brand .footer-slogan {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.85;
  max-width: 320px;
}
.footer .brand .footer-slogan br + * { display: inline; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 40px;
  font-size: 16px;
  transition: all .25s;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #04101f; font-weight: 500; }
.btn-primary:hover { background: var(--accent-2); transform: translateY(-2px); }
.btn-ghost { border: 1px solid rgba(255,255,255,.35); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.scroll-hint {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--text-3);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-hint::after {
  content: "";
  width: 1px; height: 40px;
  background: linear-gradient(var(--text-3), transparent);
  animation: drop 1.6s infinite;
}
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ============ 通用区块 ============ */
.section { padding: 96px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .kicker {
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--accent-2);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 600;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-2); max-width: 640px; margin: 0 auto; }

/* ============ 数据指标 ============ */
.stats { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats .grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat { text-align: center; padding: 20px; }
.stat .num {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}
.stat .num span { font-size: .5em; font-weight: 400; }
.stat .label { color: var(--text-2); font-size: 14px; margin-top: 4px; }

/* ============ 关于我们（首页简介） ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-grid .media img { border-radius: var(--radius); }
.about-grid h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 600; margin-bottom: 22px; }
.about-grid p { color: var(--text-2); margin-bottom: 16px; }
.about-grid .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.tag {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
}

/* ============ 产品卡片 ============ */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, border-color .3s;
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-8px); border-color: rgba(59,161,255,.5); }
.card .thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; flex-shrink: 0; }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.card:hover .thumb img { transform: scale(1.06); }
.card .thumb .badge {
  position: absolute;
  top: 14px; left: 14px;
  font-size: 12px;
  letter-spacing: 1px;
  background: rgba(6,11,22,.7);
  border: 1px solid var(--border);
  color: var(--accent-2);
  padding: 4px 12px;
  border-radius: 20px;
  backdrop-filter: blur(6px);
}
.card .body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.card .body h3 { font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.card .body .en { font-size: 13px; color: var(--accent); letter-spacing: 1px; margin-bottom: 12px; }
.card .body p { font-size: 14px; color: var(--text-2); margin-bottom: 18px; }
.card .specs { display: flex; gap: 18px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--border); }
.card .specs .s { flex: 1; text-align: center; min-width: 0; }
.card .specs .s b { display: block; font-size: 17px; color: var(--text); font-variant-numeric: tabular-nums; }
.card .specs .s span { font-size: 12px; color: var(--text-3); white-space: nowrap; }

/* ============ 主营业务 ============ */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service {
  padding: 34px 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform .3s, border-color .3s;
}
.service:hover { transform: translateY(-6px); border-color: rgba(59,161,255,.5); }
.service .icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: rgba(59,161,255,.12);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.service h3 { font-size: 19px; margin-bottom: 12px; }
.service p { font-size: 14px; color: var(--text-2); }

/* ============ 新闻 ============ */
.news-list { display: grid; gap: 14px; }
.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .25s, transform .25s;
}
.news-item:hover { border-color: rgba(59,161,255,.5); transform: translateX(4px); }
.news-item .date {
  flex-shrink: 0;
  text-align: center;
  min-width: 64px;
  border-right: 1px solid var(--border);
  padding-right: 24px;
}
.news-item .date b { display: block; font-size: 26px; color: var(--accent-2); line-height: 1.1; }
.news-item .date span { font-size: 12px; color: var(--text-3); }
.news-item .txt h4 { font-size: 17px; font-weight: 500; margin-bottom: 4px; }
.news-item .txt p { font-size: 14px; color: var(--text-3); }
.news-item .arrow { margin-left: auto; color: var(--text-3); font-size: 22px; }

/* ============ 页脚公众号二维码 ============ */
.footer-qr {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.footer-qr img {
  width: 86px;
  height: 86px;
  background: #fff;
  padding: 4px;
  border-radius: 6px;
  flex-shrink: 0;
}
.footer-qr .label {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
}
.footer-qr .label b {
  display: block;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 2px;
}

/* ============ 合作伙伴 ============ */
.partners { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.partner {
  padding: 14px 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-3);
  font-size: 15px;
  letter-spacing: 1px;
}

/* ============ 页脚 ============ */
.footer {
  background: #04080f;
  border-top: 1px solid var(--border);
  padding: 64px 0 30px;
}
.footer .top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.6fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer .brand img { height: 42px; margin-bottom: 16px; }
.footer .brand p { color: var(--text-3); font-size: 14px; max-width: 300px; }
.footer h4 { font-size: 15px; margin-bottom: 18px; }
.footer .links li { margin-bottom: 10px; }
.footer .links a { color: var(--text-3); font-size: 14px; transition: color .2s; }
.footer .links a:hover { color: var(--accent-2); }
.footer .contact li { color: var(--text-3); font-size: 14px; margin-bottom: 10px; }
.footer .bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.footer .bottom a { color: var(--text-3); }

/* ============ 内页通用头部 ============ */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background:
    radial-gradient(1000px 500px at 80% -10%, rgba(59,161,255,.18), transparent 60%),
    var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 600; margin-bottom: 14px; }
.page-hero p { color: var(--text-2); max-width: 640px; }
.page-hero .page-hero-slogan {
  font-size: 17px;
  color: var(--text-2);
  line-height: 2;
  letter-spacing: 1px;
  max-width: 720px;
}

/* ============ Hero 左右两栏布局 + 装饰小火箭 ============ */
.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-text { flex: 1 1 420px; max-width: 620px; }
.hero-rockets {
  flex: 0 0 auto;
  position: relative;
  width: 540px;
  height: 480px;
  pointer-events: none;
  align-self: flex-end;
  margin-bottom: 0;
transform: translateX(35px); 
/* 首页的两个火箭图片位置，整体往右挪 35px，数值可自行调整 */
}
.hero-rocket {
  position: absolute;
  bottom: 0; /* 底部对齐 */
  width: auto; /* 由 height 控制 */
  filter: drop-shadow(0 8px 24px rgba(0,0,0,.55));
  opacity: 0.96;
}
/* 按真实高度比 80m : 140m 显示，底部对齐，整体偏右，间距小；恒舟一号稍放大 */
.hero-rocket-1 {
  /* 恒舟一号：80m 高 */
  height: 285px;
  left: 48%;
  opacity: 1;
}
.hero-rocket-2 {
  /* 驭远一号：140m 高 */
  height: 455px;
  left: 62%;
  opacity: 1;
}
@media (max-width: 900px) {
  .hero-rockets { width: 100%; height: 320px; margin-top: 20px; }
  .hero-rocket-1 { height: 200px; left: 46%; }
  .hero-rocket-2 { height: 315px; left: 60%; }
}
@media (max-width: 500px) {
  .hero-rockets { height: 240px; }
  .hero-rocket-1 { height: 145px; left: 44%; }
  .hero-rocket-2 { height: 228px; left: 58%; }
}

/* ============ 产品详情 ============ */
.product-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}
.product-row.reverse .media { order: 2; }
.product-row .media img { border-radius: var(--radius); }
.product-row .info .tag-line {
  font-size: 13px; letter-spacing: 2px; color: var(--accent); margin-bottom: 10px;
}
.product-row .info h3 { font-size: 28px; font-weight: 600; margin-bottom: 8px; }
.product-row .info .en { font-size: 13px; color: var(--text-3); margin-bottom: 18px; }
.product-row .info p { color: var(--text-2); margin-bottom: 20px; }

/* ============ 火箭展示舞台（顶部 tab + 左/中/右 三列） ============ */
.product-stage { padding: 70px 0 110px; }
.rocket-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  max-width: 460px;
  margin: 0 auto 60px;
  padding: 6px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.rocket-tab {
  flex: 1;
  padding: 12px 20px;
  background: transparent;
  color: var(--text-2);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
  transition: all 0.25s;
}
.rocket-tab:hover:not(.active) { color: var(--text); }
.rocket-tab.active {
  background: var(--accent);
  color: #04101f;
}

.rocket-panel { display: none; }
.rocket-panel.active { display: block; }

.rocket-grid {
  display: grid;
  grid-template-columns: 1.5fr 1.15fr 0.5fr;
  gap: 56px;
  align-items: start;
}

/* 左列：名称 + 副标题 + 介绍 */
.rocket-name {
  font-size: 30px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.rocket-tagline {
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.rocket-en {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 22px;
  line-height: 1.7;
}
.rocket-desc {
  font-size: 15px;
  color: var(--text-2);
  line-height: 2;
}
.rocket-points {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 18px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.9;
}
.rocket-points li { margin-bottom: 4px; }
.rocket-sub {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  margin: 22px 0 12px;
  letter-spacing: 1px;
}
.rocket-cap {
  margin-top: 18px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
}
.rocket-cap p {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.rocket-cap p span {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 400;
  margin-left: 8px;
  letter-spacing: 1px;
}

/* 产品与服务页面火箭图片更改位置left: xxxpx,小按钮也会跟着该位置，中列：火箭大图 + 左右切换 */
.rocket-center { text-align: center; position: relative; left: 200px;}
.rocket-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
}
.rocket-img-wrap img {
  max-height: 480px;
  width: auto;
  filter: drop-shadow(0 14px 36px rgba(0,0,0,.55));
}
.rocket-nav {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 10px;
}
.arrow-btn {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  transition: all 0.25s;
}
.arrow-btn:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: #04101f;
}

/* 右列：参数 */
.rocket-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}
.param-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
}
.param-row .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(59, 161, 255, 0.2);
  flex-shrink: 0;
}
.param-label {
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: 1px;
  flex: 1;
}
.param-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
.param-value small {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 400;
  margin-left: 2px;
}

@media (max-width: 1100px) {
  .rocket-grid { grid-template-columns: 1fr; gap: 40px; }
  .rocket-img-wrap { min-height: 360px; }
  .rocket-right { max-width: 520px; margin: 0 auto; width: 100%; }
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 12px 18px; font-size: 14px; }
.spec-table td:first-child { color: var(--text-3); width: 38%; }
.spec-table td:last-child { color: var(--text); }

/* ============ 系列区块头（产品页） ============ */
.series-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 40px;
}
.series-head .kicker {
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--accent-2);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.series-head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 600;
  margin-bottom: 14px;
}
.series-head p {
  font-size: 16px;
  color: var(--text-2);
}
.series-block {
  padding-top: 64px;
  padding-bottom: 64px;
}
.series-block + .series-block {
  border-top: 1px solid var(--border);
}

/* ============ 价值卡片网格（核心优势） ============ */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.strength-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color .25s, transform .25s;
}
.strength-card:hover {
  border-color: rgba(59,161,255,.5);
  transform: translateY(-4px);
}
.strength-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(59,161,255,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.strength-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 14px;
}
.strength-card p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.9;
}

@media (max-width: 900px) {
  .strength-grid { grid-template-columns: 1fr; }
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.value-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  transition: border-color .25s, transform .25s;
}
.value-card:hover { border-color: rgba(59,161,255,.5); transform: translateY(-4px); }
.value-card h4 {
  font-size: 18px;
  color: var(--accent-2);
  margin-bottom: 10px;
  font-weight: 500;
}
.value-card p {
  font-size: 14px;
  color: var(--text-2);
}
/* ============ 中文陈述文字：统一 17px / 行高 2 / 字距 1px ============
   适用于「品牌陈述、航天主张、创始人之声」这类成段论述文字，
   全站保持一致，改这里即可整体调整 ============ */
.brand-statement,
.manifesto,
.quote-block {
  font-size: 17px;
  line-height: 2;
  letter-spacing: 1px;
  color: var(--text);
}

/* 品牌陈述块（我们是谁 / 我们解决什么问题 / 我们的愿景） */
.brand-statement {
  max-width: 880px;
  margin: 18px auto 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 24px 26px;
  border-radius: 0 12px 12px 0;
}

/* 航天主张：逐行排列，行距统一 */
.manifesto {
  max-width: 880px;
  margin: 0 auto;
}
.manifesto p { margin-bottom: 14px; }
.manifesto p:last-child { margin-bottom: 0; }

/* 创始人之声 / 引言 */
.quote-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 24px 28px;
  border-radius: 0 14px 14px 0;
  margin-bottom: 20px;
}
.quote-block .who {
  display: block;
  margin-top: 14px;
  color: var(--text-3);
  font-size: 14px;
  letter-spacing: 1px;
}

/* ============ 两栏价值观（4 项） ============ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.value-card {
  padding: 26px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform .3s, border-color .3s;
}
.value-card:hover { transform: translateY(-4px); border-color: rgba(59,161,255,.5); }
.value-card h4 {
  font-size: 18px;
  font-weight: 500;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.value-card p { font-size: 14px; color: var(--text-2); }
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 1px; background: var(--border);
}
.timeline .item { position: relative; margin-bottom: 32px; }
.timeline .item::before {
  content: "";
  position: absolute; left: -27px; top: 6px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(59,161,255,.15);
}
.timeline .year { font-size: 15px; color: var(--accent-2); font-weight: 500; margin-bottom: 6px; }
.timeline .desc { color: var(--text-2); font-size: 15px; }

/* ============ 联系我们 / 招聘 ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}
.info-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.info-block h3 { font-size: 19px; margin-bottom: 20px; }
.info-block .row { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); align-items: flex-start; }
.info-block .row:last-child { border-bottom: none; }
.info-block .row .k { color: var(--text-3); font-size: 14px; width: 72px; flex-shrink: 0; text-align: justify; text-align-last: justify; }
.info-block .row .v { color: var(--text); font-size: 15px; }
.job-list { display: grid; gap: 14px; }
.job {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  transition: border-color .25s;
}
.job:hover { border-color: rgba(59,161,255,.5); }
.job .j-name { font-size: 16px; font-weight: 500; }
.job .j-meta { font-size: 13px; color: var(--text-3); margin-top: 4px; }
.job .j-btn { color: var(--accent); font-size: 14px; white-space: nowrap; }

/* ============ 招聘手风琴 ============ */
.dept-head {
  font-size: 18px;
  font-weight: 500;
  color: var(--accent-2);
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.dept-head .dept-meta { color: var(--text-3); font-size: 13px; font-weight: 400; margin-left: 10px; }
.job-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .25s;
}
.job-item:hover { border-color: rgba(59,161,255,.4); }
.job-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  gap: 16px;
}
.job-item summary::-webkit-details-marker { display: none; }
.job-item summary::marker { display: none; }
.job-item summary::after {
  content: "+";
  font-size: 22px;
  color: var(--accent-2);
  font-weight: 300;
  flex-shrink: 0;
}
.job-item[open] summary::after { content: "−"; }
.job-item .j-info { flex: 1; min-width: 0; }
.job-item .j-name { font-size: 16px; font-weight: 500; }
.job-item .j-meta { font-size: 13px; color: var(--text-3); margin-top: 6px; }
.job-item .j-body {
  padding: 4px 24px 22px;
  border-top: 1px solid var(--border);
}
.job-item .j-body h5 {
  font-size: 13px;
  color: var(--accent-2);
  margin: 18px 0 10px;
  letter-spacing: 1px;
  font-weight: 500;
  text-transform: uppercase;
}
.job-item .j-body ul {
  padding-left: 20px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.85;
}
.job-item .j-body ul li { margin-bottom: 5px; }
.job-item .j-apply {
  display: inline-block;
  margin-top: 16px;
  padding: 8px 18px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 24px;
  font-size: 13px;
  transition: all .2s;
}
.job-item .j-apply:hover { background: var(--accent); color: #04101f; }

/* ============ 滚动淡入动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 72%;
    max-width: 320px;
    height: 100vh;
    background: rgba(6, 11, 22, .98);
    flex-direction: column;
    align-items: flex-start;
    padding: 90px 34px;
    gap: 26px;
    transition: right .3s;
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; z-index: 101; }
  .nav-links .btn-contact { margin-top: 10px; }
  .nav-links .dropdown-menu {
    position: static;
    background: transparent;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    padding: 6px 0 0 14px;
    min-width: 0;
    display: block;
  }
  .nav-links .dropdown-menu a { padding: 8px 14px; }
  .stats .grid { grid-template-columns: repeat(2, 1fr); }
  .cards, .services, .about-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .footer .top { grid-template-columns: 1fr 1fr; }
}

/* ============ 产品服务（与其他 section 同底色） ============ */
.service-section {
  background: var(--bg);
  color: var(--text);
  padding: 96px 0 100px;
  border-top: 1px solid var(--border);
}

.service-title {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 600;
  color: var(--text);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 80px;
  align-items: stretch;
}
.service-card {
  position: relative;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  min-height: 500px;
  overflow: hidden;
}
.service-card-img {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.service-card-img > img {
  opacity: 0.5;
}
.service-rocket {
  position: absolute;
  bottom: 0; /* 底部对齐 */
  width: auto;
  filter: drop-shadow(0 6px 18px rgba(0,0,0,.55));
  opacity: 0.55;
}
/* 双火箭并排：比首页略紧但更宽幅，高度比沿用 80m:140m，整体放大适配卡片 */
.service-rocket-1 {
  height: 250px;
  left: 30%;
}
.service-rocket-2 {
  height: 420px; /* ~1.68x 比例 */
  left: 52%;
}
.service-card-title {
  position: absolute;
  bottom: 96px;
  left: 36px;
  right: 36px;
  z-index: 2;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  margin: 0;
}
.service-card-desc {
  position: absolute;
  bottom: 36px;
  left: 36px;
  right: 36px;
  z-index: 2;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.85;
  margin: 0;
}

.service-list {
  display: flex;
  flex-direction: column;
}
.service-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 30px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: padding .25s;
}
.service-item:first-child { border-top: 1px solid var(--border); }
.service-item:hover { padding-left: 10px; }
.service-num {
  font-size: 30px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}
.service-name {
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 1px;
}

@media (max-width: 1000px) {
  .service-grid { grid-template-columns: 1fr; gap: 50px; }
}
@media (max-width: 600px) {
  .service-section { padding: 72px 0 80px; }
  .service-item { grid-template-columns: 56px 1fr; gap: 16px; padding: 18px 0; }
  .service-num { font-size: 22px; }
  .service-name { font-size: 14px; }
  .service-card-title { font-size: 20px; }
}

/* ============ 新闻详情页 ============ */
.news-article {
  padding: 150px 0 90px;
}
.news-article-inner {
  max-width: 820px;
}
.news-meta {
  font-size: 14px;
  color: var(--accent-2);
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.news-title {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 40px;
}
.news-body {
  color: var(--text-2);
  font-size: 16px;
  line-height: 2;
}
.news-body p { margin-bottom: 18px; }
.news-body .news-lead {
  font-size: 18px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 24px;
}
.news-body h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 40px 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.news-quote {
  margin: 18px 0;
  padding: 18px 22px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.9;
}
.news-values {
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 15px;
  line-height: 2.1;
}
.news-back {
  display: inline-block;
  margin-top: 48px;
  color: var(--accent);
  font-size: 14px;
}
.news-back:hover { color: var(--accent-2); }
.news-figure {
  margin: 26px 0 30px;
}
.news-figure img {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.news-body .news-note {
  margin-top: 30px;
  font-size: 14px;
  color: var(--text-3, #8a93a6);
}

@media (max-width: 600px) {
  .news-article { padding: 120px 0 70px; }
  .news-body { font-size: 15px; }
}