/* ============ 摩图官网 · 全局样式（科技蓝改版） ============ */
:root {
  --ink: #0b1226;
  --ink-soft: #333b52;
  --muted: #666f8a;
  --line: #e4e8f2;
  --line-soft: #eef1f8;
  --bg: #ffffff;
  --bg-soft: #f5f7fc;
  --bg-deep: #080d1e;
  --accent: #0057ff;
  --accent-deep: #0041cc;
  --accent-soft: #eaf0ff;
  --gold: #0057ff; /* 兼容别名：统一为科技蓝 */
  --cyan: #35c3ff;
  --radius: 12px;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --serif: var(--sans); /* 兼容别名：统一黑体系 */
  --maxw: 1200px;
  --shadow-card: 0 18px 44px rgba(10, 18, 46, 0.08);
  --shadow-accent: 0 12px 30px rgba(0, 87, 255, 0.32);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--accent); color: #fff; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 24px rgba(10, 18, 46, 0.05); }
.site-header.hero-mode {
  background:
    linear-gradient(180deg, rgba(5, 9, 22, 0.68) 0%, rgba(5, 9, 22, 0.25) 62%, transparent 100%);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}
.site-header.hero-mode .nav-links a { color: #fff; font-weight: 500; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55); }
.site-header.hero-mode .nav-links a:hover,
.site-header.hero-mode .nav-links a.active { color: var(--cyan); text-shadow: 0 1px 10px rgba(0, 0, 0, 0.6); }
.site-header.hero-mode .nav-cta {
  border-color: transparent; color: #fff; text-shadow: none;
  background: linear-gradient(135deg, #0057ff, #00a3ff);
}
.site-header.hero-mode .nav-cta:hover { filter: brightness(1.1); }
.site-header.hero-mode .brand-text .cn,
.site-header.hero-mode .brand-text .en { color: #fff; text-shadow: 0 1px 10px rgba(0, 0, 0, 0.6); }
.site-header.hero-mode .nav-toggle span { background: #fff; }
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 32px;
  height: 76px; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { height: 44px; width: auto; display: block; border-radius: 4px; }
.brand-mark[src*="logo"] { background: transparent; padding: 0; height: 44px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text .cn { font-size: 15px; font-weight: 800; letter-spacing: 0.06em; white-space: nowrap; }
.brand-text .en { font-size: 9.5px; color: var(--muted); font-weight: 500; letter-spacing: 0.05em; margin-top: 4px; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  font-size: 14.5px; font-weight: 500; color: var(--ink-soft); letter-spacing: 0.06em;
  position: relative; padding: 6px 0; transition: color 0.25s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--accent); font-weight: 700; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--accent); padding: 10px 24px; border-radius: 6px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.1em;
  color: #fff; background: linear-gradient(135deg, var(--accent), #00a3ff);
  box-shadow: 0 8px 20px rgba(0, 87, 255, 0.28);
  transition: all 0.25s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 12px 26px rgba(0, 87, 255, 0.38); }
.nav-toggle { display: none; background: none; border: none; width: 40px; height: 40px; position: relative; }
.nav-toggle span {
  position: absolute; left: 8px; right: 8px; height: 2px; border-radius: 1px; background: var(--ink);
  transition: transform 0.3s, opacity 0.3s, top 0.3s;
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- 通用版式 ---------- */
main { padding-top: 76px; }
.section { padding: 110px 0; }
.section.soft { background: var(--bg-soft); }
.section.deep {
  background:
    radial-gradient(900px 460px at 78% 0%, rgba(0, 87, 255, 0.16), transparent 65%),
    radial-gradient(700px 400px at 6% 100%, rgba(53, 195, 255, 0.08), transparent 60%),
    var(--bg-deep);
  color: #e8edf8;
}
.section-head { max-width: 780px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.3em; color: var(--accent);
  text-transform: uppercase; margin-bottom: 22px;
}
.kicker::before { content: ""; width: 28px; height: 2px; border-radius: 1px; background: linear-gradient(90deg, var(--accent), var(--cyan)); }
.section-head.center .kicker::after { content: ""; width: 28px; height: 2px; border-radius: 1px; background: linear-gradient(90deg, var(--cyan), var(--accent)); }
.section-title {
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 900; line-height: 1.3; letter-spacing: 0.02em; color: var(--ink);
}
.section-title em { font-style: normal; color: var(--accent); }
.section.deep .section-title { color: #fff; }
.section.deep .kicker { color: var(--cyan); }
.section.deep .kicker::before, .section.deep .kicker::after { background: var(--cyan); }
.section-desc { margin-top: 20px; color: var(--muted); font-size: 16.5px; font-weight: 400; }
.section.deep .section-desc { color: #9aa4c0; }

/* 滚动显现动画 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: 0.08s; } .d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; } .d4 { transition-delay: 0.32s; }

/* ---------- Hero（720°VR全景互动背景 · 仿旧版官网） ---------- */
.hero {
  position: relative; min-height: calc(100vh - 76px);
  display: flex; align-items: center; overflow: hidden;
  background: var(--bg-deep);
}
.hero-pano { background: var(--bg-deep); }
.hero-pano::before { display: none; }
.hero-pano-frame {
  position: absolute; inset: 0; width: 100%; height: 100%;
  border: 0; display: block; z-index: 0; pointer-events: none;
}
.hero-veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 1000px 520px at 50% 46%, rgba(5, 9, 22, 0.42) 0%, transparent 74%),
    linear-gradient(180deg,
      rgba(5, 9, 22, 0.62) 0%,
      rgba(5, 9, 22, 0.38) 40%,
      rgba(5, 9, 22, 0.52) 70%,
      rgba(5, 9, 22, 0.78) 100%);
}
.hero-inner { position: relative; max-width: var(--maxw); margin: 0 auto; padding: 110px 32px 130px; }
/* 仿旧官网：内容整体居中 */
.hero-pano .hero-inner {
  z-index: 2; pointer-events: none; text-align: center; width: 100%;
}
.hero-pano .hero-inner a { pointer-events: auto; }
.hero-t1 {
  font-size: 15px; font-weight: 500; letter-spacing: 0.5em; text-indent: 0.5em;
  color: rgba(255, 255, 255, 0.9); text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  margin-bottom: 26px;
}
.hero h1 {
  font-weight: 900;
  font-size: clamp(38px, 6vw, 70px); line-height: 1.24; letter-spacing: 0.02em;
  max-width: 18em; margin: 0 auto;
}
.hero h1 .thin { font-weight: 700; color: rgba(255, 255, 255, 0.92); }
.hero-pano h1 { color: #fff; text-shadow: 0 4px 28px rgba(0, 0, 0, 0.6); }
.hero-pano h1 .thin { color: rgba(255, 255, 255, 0.92); }
.hero-sub {
  margin-top: 28px; font-size: clamp(16px, 2vw, 19px); color: var(--ink-soft);
  letter-spacing: 0.12em; font-weight: 500;
}
.hero-pano .hero-sub { color: rgba(255, 255, 255, 0.88); text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55); }
.hero-tags { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.hero-tags span {
  font-size: 13px; font-weight: 600; color: #fff; letter-spacing: 0.1em;
  background: rgba(0, 87, 255, 0.55); border: 1px solid rgba(53, 195, 255, 0.35);
  padding: 7px 18px; border-radius: 100px; text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.hero-actions { margin-top: 48px; display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 44px; font-size: 15px; font-weight: 700; letter-spacing: 0.12em;
  border-radius: 6px; transition: all 0.28s ease; border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, #0057ff, #00a3ff); color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(0, 87, 255, 0.42); filter: brightness(1.06); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.6); color: #fff; background: rgba(5, 9, 22, 0.35); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.btn-ghost:hover { border-color: #fff; background: rgba(5, 9, 22, 0.55); transform: translateY(-3px); }
.btn .arr { transition: transform 0.28s; }
.btn:hover .arr { transform: translateX(4px); }
.hero-foot {
  margin-top: 88px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, 0.24);
  display: flex; flex-wrap: wrap; gap: 12px 46px; align-items: center; justify-content: center;
  font-size: 13.5px; color: rgba(255, 255, 255, 0.82); letter-spacing: 0.1em; font-weight: 500;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}
.hero-foot b { color: #fff; font-weight: 800; margin-right: 6px; }
/* 兼容旧结构 */
.hero-badge { display: none; }

/* ---------- 核心数据 ---------- */
.stats-band { border-top: 1px solid var(--line); background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); border-left: 1px solid var(--line); }
.stat-cell {
  padding: 44px 26px 40px; border-right: 1px solid var(--line);
  position: relative; transition: background 0.3s;
}
.stat-cell:hover { background: var(--accent-soft); }
.stat-cell .num {
  font-size: clamp(32px, 3.4vw, 46px); font-weight: 900;
  color: var(--ink); line-height: 1.1; letter-spacing: 0.01em;
}
.stat-cell .num i { font-style: normal; color: var(--accent); }
.stat-cell .label { margin-top: 10px; font-size: 13px; color: var(--muted); letter-spacing: 0.06em; font-weight: 500; }

/* ---------- 关于摩图 ---------- */
.about-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 72px; align-items: start; }
.about-sticky { position: sticky; top: 130px; }
.about-quote {
  font-size: 24px; line-height: 1.7; font-weight: 800;
  padding-left: 26px; border-left: 4px solid var(--accent); letter-spacing: 0.02em;
  background: linear-gradient(90deg, var(--accent-soft), transparent 70%);
  padding: 18px 22px; border-radius: 0 10px 10px 0;
}
.about-quote small { display: block; margin-top: 14px; font-size: 13px; color: var(--muted); font-weight: 500; letter-spacing: 0.2em; }
.about-body p { color: var(--ink-soft); margin-bottom: 22px; text-align: justify; text-indent: 2em; }
.about-body p b { color: var(--ink); font-weight: 700; }
.about-tags { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.about-tags span {
  font-size: 13px; font-weight: 600; padding: 7px 16px; border: 1px solid var(--line);
  color: var(--ink-soft); border-radius: 100px; letter-spacing: 0.04em; background: #fff;
}
.milestones { margin-top: 40px; border-top: 1px solid var(--line); }
.milestone { display: flex; gap: 26px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.milestone .year { font-size: 21px; font-weight: 900; color: var(--accent); min-width: 86px; letter-spacing: 0.02em; }
.milestone .text { color: var(--ink-soft); font-size: 15px; }

/* ---------- 增长引擎 ---------- */
.engine-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.engine-card {
  background: rgba(255, 255, 255, 0.045); border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius); padding: 46px 32px 42px; min-height: 380px;
  display: flex; flex-direction: column; transition: all 0.35s ease; position: relative; overflow: hidden;
}
.engine-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.engine-card:hover { background: rgba(255, 255, 255, 0.075); border-color: rgba(53, 195, 255, 0.4); transform: translateY(-6px); }
.engine-card:hover::before { transform: scaleX(1); }
.engine-card .no { font-size: 15px; font-weight: 800; color: var(--cyan); letter-spacing: 0.2em; }
.engine-card h3 { font-size: 25px; font-weight: 900; margin: 18px 0 6px; letter-spacing: 0.08em; color: #fff; }
.engine-card .en { font-size: 11.5px; font-weight: 600; letter-spacing: 0.28em; color: #5d6a92; text-transform: uppercase; }
.engine-card p { margin-top: 22px; font-size: 14.5px; color: #a7b1cd; line-height: 1.9; flex: 1; }
.engine-card .foot { margin-top: 24px; font-size: 12.5px; color: var(--cyan); letter-spacing: 0.14em; font-weight: 600; }
.engine-sum {
  margin-top: 60px; text-align: center;
  font-size: clamp(19px, 2.4vw, 26px); font-weight: 800; color: #e8edf8; letter-spacing: 0.06em; line-height: 1.8;
}
.engine-sum i { font-style: normal; color: var(--cyan); }

/* ---------- 核心团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.team-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 42px 44px; display: flex; gap: 28px; transition: all 0.3s;
}
.team-card:hover { box-shadow: var(--shadow-card); transform: translateY(-4px); border-color: transparent; }
.team-avatar {
  width: 76px; height: 76px; flex: none; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  color: #fff; font-size: 28px; font-weight: 900;
  display: flex; align-items: center; justify-content: center; letter-spacing: 0.04em;
  box-shadow: 0 10px 24px rgba(0, 87, 255, 0.25);
}
.team-info h3 { font-size: 21px; font-weight: 900; letter-spacing: 0.04em; }
.team-info .role { margin-top: 4px; font-size: 13.5px; color: var(--accent); letter-spacing: 0.08em; font-weight: 700; }
.team-info .bio { margin-top: 16px; font-size: 14.5px; color: var(--muted); line-height: 1.9; }
.team-info .dir {
  margin-top: 16px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600; color: var(--accent);
  border: 1px solid var(--line); padding: 6px 14px; border-radius: 100px; background: var(--accent-soft);
}

/* ---------- 服务体系 ---------- */
.svc-accordion { border-top: 1px solid var(--line); }
.svc-item { border-bottom: 1px solid var(--line); background: #fff; }
.svc-head {
  width: 100%; display: flex; align-items: center; gap: 28px;
  padding: 32px 8px; background: none; border: none; text-align: left;
  transition: padding 0.3s ease;
}
.svc-head .idx { font-size: 16px; font-weight: 900; color: var(--accent); min-width: 34px; letter-spacing: 0.06em; }
.svc-head h3 { font-size: clamp(19px, 2.4vw, 25px); font-weight: 900; letter-spacing: 0.04em; flex: 1; color: var(--ink); }
.svc-head .hint { font-size: 13.5px; color: var(--muted); letter-spacing: 0.08em; font-weight: 500; }
.svc-head .plus {
  width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 17px;
  color: var(--ink-soft); transition: all 0.3s; flex: none;
}
.svc-item.open .plus { background: linear-gradient(135deg, var(--accent), #00a3ff); color: #fff; border-color: transparent; transform: rotate(45deg); }
.svc-body { max-height: 0; overflow: hidden; transition: max-height 0.5s ease; }
.svc-body-inner { padding: 4px 8px 40px 62px; }
.svc-body-inner .tagline { font-size: 15px; color: var(--accent); font-weight: 700; letter-spacing: 0.06em; margin-bottom: 18px; }
.svc-body-inner ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 34px; }
.svc-body-inner li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-soft); }
.svc-body-inner li::before {
  content: ""; position: absolute; left: 0; top: 0.85em; width: 8px; height: 8px;
  border-radius: 2px; background: linear-gradient(135deg, var(--accent), var(--cyan));
}
.svc-note { margin-top: 30px; text-align: center; color: var(--muted); font-size: 14px; letter-spacing: 0.06em; }

/* ---------- 代表案例（首页） ---------- */
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 64px; }
.featured-card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 38px 34px 34px; display: flex; flex-direction: column;
  transition: all 0.35s ease; overflow: hidden; min-height: 240px;
}
.featured-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.featured-card:hover::before { transform: scaleX(1); }
.featured-card:hover { border-color: transparent; box-shadow: 0 24px 52px rgba(0, 87, 255, 0.14); transform: translateY(-6px); }
.featured-card .feat-media {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  margin: -38px -34px 22px; background: #e9edf5;
}
.featured-card .feat-media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.5s ease;
}
.featured-card:hover .feat-media img { transform: scale(1.05); }
.featured-card .cat { font-size: 12.5px; color: var(--accent); font-weight: 700; letter-spacing: 0.18em; margin-bottom: 16px; }
.featured-card h3 { font-size: 22px; font-weight: 900; letter-spacing: 0.02em; line-height: 1.5; }
.featured-card .sub { margin-top: 6px; font-size: 13.5px; color: var(--accent); font-weight: 600; letter-spacing: 0.04em; }
.featured-card p { margin-top: 16px; font-size: 14px; color: var(--muted); line-height: 1.85; flex: 1; }
.featured-card .go {
  margin-top: 20px; font-size: 13.5px; color: var(--ink); letter-spacing: 0.12em;
  display: inline-flex; align-items: center; gap: 8px; font-weight: 800;
}
.featured-card .go .arr { transition: transform 0.3s; }
.featured-card:hover .go .arr { transform: translateX(5px); }

/* 案例网格（精选 / 案例库） */
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.case-card {
  display: flex; flex-direction: column; justify-content: space-between;
  border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 24px 22px 20px;
  min-height: 128px; position: relative; transition: all 0.3s ease;
}
.case-card:hover { background: var(--bg-deep); border-color: var(--bg-deep); box-shadow: 0 18px 36px rgba(8, 13, 30, 0.28); }
.case-card .cc-top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.case-card .cc-tag { font-size: 11.5px; color: var(--accent); font-weight: 700; letter-spacing: 0.14em; white-space: nowrap; }
.case-card .cc-no { font-size: 12px; font-weight: 700; color: #c9cedb; }
.case-card h4 {
  margin-top: 12px; font-size: 15px; font-weight: 700; letter-spacing: 0.02em;
  line-height: 1.6; color: var(--ink); display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.case-card .cc-link {
  margin-top: 14px; font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: 0.12em;
  display: inline-flex; align-items: center; gap: 6px;
}
.case-card:hover h4 { color: #fff; }
.case-card:hover .cc-link { color: var(--cyan); }
.case-card:hover .cc-tag { color: var(--cyan); }
.case-card:hover .cc-no { color: #4b5470; }

/* ---------- 案例卡片 · 截图主视图版 ---------- */
.case-grid.media { grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card.pic {
  padding: 0; cursor: pointer; overflow: hidden;
  border-radius: 12px; border: 1px solid var(--line); background: #fff;
}
.case-card.pic:hover { background: #fff; border-color: transparent; }
.case-card.pic:hover h4 { color: var(--ink); }
.case-card.pic .cc-media {
  position: relative; aspect-ratio: 16 / 10; overflow: hidden;
  background: #e9edf5;
}
.case-card.pic .cc-media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.5s ease;
}
.case-card.pic:hover .cc-media img { transform: scale(1.05); }
.case-card.pic .cc-play {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s ease;
  background: linear-gradient(180deg, rgba(8,13,30,0.08) 40%, rgba(8,13,30,0.42) 100%);
}
.case-card.pic:hover .cc-play { opacity: 1; }
.case-card.pic .cc-noimg {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 900; color: #aeb6c8; letter-spacing: 0.1em;
}
.case-card.pic .cc-body { padding: 14px 16px 16px; }
.case-card.pic .cc-meta { display: flex; justify-content: space-between; align-items: baseline; }
.case-card.pic h4 { margin-top: 8px; min-height: 48px; font-size: 14.5px; }
.case-card.pic .cc-link { margin-top: 10px; }

/* ---------- 案例观看弹窗 ---------- */
.case-modal {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(5, 9, 18, 0.86);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transition: opacity 0.25s ease, visibility 0.25s ease;
}
.case-modal.open { opacity: 1; visibility: visible; }
.case-modal-head {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 14px 24px; color: #fff; flex-wrap: wrap;
}
.case-modal-info { display: flex; align-items: center; gap: 12px; min-width: 0; }
.case-modal-tag {
  font-size: 11px; font-weight: 800; letter-spacing: 0.14em; white-space: nowrap;
  color: var(--cyan); border: 1px solid rgba(53, 195, 255, 0.45);
  padding: 4px 10px; border-radius: 999px;
}
.case-modal-head h3 {
  font-size: 15.5px; font-weight: 700; letter-spacing: 0.03em; color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.case-modal-acts { display: flex; align-items: center; gap: 10px; }
.case-modal-newwin {
  font-size: 12.5px; font-weight: 600; color: rgba(255,255,255,0.82);
  text-decoration: none; border: 1px solid rgba(255,255,255,0.35);
  padding: 7px 14px; border-radius: 8px; transition: all 0.25s ease; white-space: nowrap;
}
.case-modal-newwin:hover { color: #fff; border-color: #fff; background: rgba(255,255,255,0.12); }
.case-modal-close {
  font-size: 13px; font-weight: 700; letter-spacing: 0.06em; cursor: pointer;
  color: #fff; background: var(--accent); border: none;
  padding: 8px 16px; border-radius: 8px; white-space: nowrap; transition: all 0.25s ease;
}
.case-modal-close:hover { background: #1a6dff; transform: translateY(-1px); }
.case-modal-body { flex: 1; padding: 0 24px 24px; min-height: 0; }
.case-modal-body iframe {
  width: 100%; height: 100%; border: none; border-radius: 12px;
  background: #fff; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
@media (max-width: 1180px) { .case-grid.media { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
  .case-grid.media { grid-template-columns: 1fr; }
  .case-modal-head { padding: 10px 14px; }
  .case-modal-body { padding: 0 10px 10px; }
  .case-modal-head h3 { max-width: 150px; }
}

/* ---------- 服务客户 ---------- */
.client-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.client-group { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 38px; }
.client-group h3 {
  font-size: 15px; letter-spacing: 0.2em; color: var(--accent); font-weight: 800;
  display: flex; align-items: center; gap: 14px; margin-bottom: 22px;
}
.client-group h3::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.client-group ul { display: flex; flex-wrap: wrap; gap: 9px 10px; }
.client-group li {
  font-size: 13.5px; color: var(--ink-soft); background: var(--bg-soft);
  padding: 7px 16px; border-radius: 100px; letter-spacing: 0.02em; font-weight: 500;
  transition: all 0.25s;
}
.client-group li:hover { background: var(--accent-soft); color: var(--accent-deep); }
.client-slogan { margin-top: 44px; text-align: center; font-size: 21px; font-weight: 800; letter-spacing: 0.12em; color: var(--ink-soft); }

/* ---------- 服务模式 ---------- */
.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mode-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 46px 40px; min-height: 330px; display: flex; flex-direction: column;
  transition: all 0.3s;
}
.mode-card:hover { box-shadow: var(--shadow-card); transform: translateY(-4px); border-color: transparent; }
.mode-card .zi {
  width: 76px; height: 76px; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  color: #fff; font-size: 34px; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(0, 87, 255, 0.25);
}
.mode-card h3 { font-size: 23px; font-weight: 900; margin-top: 24px; letter-spacing: 0.06em; }
.mode-card .sub { font-size: 12.5px; color: var(--accent); font-weight: 700; letter-spacing: 0.2em; margin-top: 6px; }
.mode-card ul { margin-top: 24px; flex: 1; }
.mode-card li { position: relative; padding-left: 18px; font-size: 14px; color: var(--muted); margin-bottom: 10px; line-height: 1.7; }
.mode-card li::before {
  content: ""; position: absolute; left: 0; top: 0.78em; width: 8px; height: 8px;
  border-radius: 2px; background: linear-gradient(135deg, var(--accent), var(--cyan));
}
.mode-sum {
  margin-top: 48px; padding: 32px 40px; background: var(--accent-soft); border-radius: var(--radius);
  border-left: 4px solid var(--accent); color: var(--ink-soft); font-size: 15.5px; line-height: 2;
}

/* ---------- 为什么选择摩图 ---------- */
.why-list { border-top: 1px solid rgba(255, 255, 255, 0.14); }
.why-row {
  display: grid; grid-template-columns: 90px 220px 1fr; gap: 36px; align-items: baseline;
  padding: 36px 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 0.3s;
}
.why-row:hover { background: rgba(0, 87, 255, 0.08); }
.why-row .no { font-size: 17px; color: var(--cyan); font-weight: 800; letter-spacing: 0.1em; }
.why-row h3 { font-size: 24px; font-weight: 900; color: #fff; letter-spacing: 0.06em; }
.why-row p { font-size: 15px; color: #a7b1cd; }

/* ---------- 承诺 ---------- */
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.promise-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 50px 40px; text-align: center;
  position: relative; transition: all 0.35s;
}
.promise-card:hover { transform: translateY(-6px); box-shadow: 0 22px 48px rgba(0, 87, 255, 0.12); border-color: transparent; }
.promise-card .no { font-size: 14px; color: var(--accent); font-weight: 800; letter-spacing: 0.24em; }
.promise-card h3 { font-size: 25px; font-weight: 900; margin-top: 18px; letter-spacing: 0.06em; }
.promise-card .line { width: 34px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--accent), var(--cyan)); margin: 20px auto; }
.promise-card p { font-size: 14.5px; color: var(--muted); line-height: 1.9; }
.promise-sum { margin-top: 46px; text-align: center; font-size: 20px; font-weight: 800; letter-spacing: 0.1em; color: var(--ink-soft); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 72px; align-items: start; }
.contact-list { display: grid; gap: 14px; }
.contact-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 38px; display: flex; gap: 24px; align-items: flex-start; transition: all 0.3s;
}
.contact-item:hover { box-shadow: var(--shadow-card); border-color: transparent; }
.contact-item .ic {
  width: 48px; height: 48px; flex: none; border-radius: 12px;
  background: var(--accent-soft); display: flex; align-items: center; justify-content: center; color: var(--accent);
}
.contact-item .k { font-size: 12.5px; color: var(--muted); letter-spacing: 0.22em; font-weight: 600; }
.contact-item .v { margin-top: 6px; font-size: 17px; font-weight: 700; letter-spacing: 0.02em; }
.contact-item .v a:hover { color: var(--accent); }
.contact-cta {
  background: linear-gradient(150deg, #0d1732 0%, var(--bg-deep) 60%);
  border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 16px;
  color: #e8edf8; padding: 56px 48px; position: sticky; top: 130px;
}
.contact-cta h3 { font-size: 28px; font-weight: 900; letter-spacing: 0.04em; line-height: 1.5; }
.contact-cta p { margin-top: 18px; font-size: 14.5px; color: #9aa4c0; line-height: 1.95; }
.contact-cta .btn { margin-top: 34px; background: linear-gradient(135deg, var(--accent), #00a3ff); color: #fff; }
.contact-cta .btn:hover { box-shadow: 0 16px 36px rgba(0, 87, 255, 0.42); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--bg-deep); color: #8b93ad; padding: 70px 0 38px; }
.footer-grid { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer-brand .brand-mark { background: #fff; padding: 6px 8px; border-radius: 8px; height: 42px; }
.footer-brand .desc { margin-top: 24px; font-size: 13.5px; line-height: 2; max-width: 360px; }
.footer-cols { display: flex; gap: 72px; flex-wrap: wrap; }
.footer-col h4 { font-size: 13px; color: #e8edf8; letter-spacing: 0.22em; margin-bottom: 20px; font-weight: 800; }
.footer-col a, .footer-col span { display: block; font-size: 13.5px; color: #8b93ad; margin-bottom: 11px; transition: color 0.25s; letter-spacing: 0.04em; }
.footer-col a:hover { color: var(--cyan); }
.footer-seo {
  margin-top: 48px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex; align-items: baseline; gap: 10px 18px; flex-wrap: wrap;
}
.footer-seo h4 { font-size: 13px; color: #e8edf8; letter-spacing: 0.22em; font-weight: 800; flex-shrink: 0; }
.footer-seo a { font-size: 12.5px; color: #6f7896; letter-spacing: 0.04em; transition: color 0.25s; }
.footer-seo a:hover { color: var(--cyan); }
.footer-bottom {
  margin-top: 52px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; letter-spacing: 0.06em;
}
.footer-bottom a { color: rgba(255, 255, 255, 0.55); text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 案例库页 ---------- */
.page-hero {
  background:
    radial-gradient(900px 460px at 80% 0%, rgba(0, 87, 255, 0.22), transparent 65%),
    var(--bg-deep);
  color: #e8edf8; padding: 110px 0 90px; position: relative; overflow: hidden;
}
.page-hero::before {
  content: "VR"; position: absolute; right: -20px; bottom: -70px;
  font-size: 320px; font-weight: 900;
  color: rgba(255, 255, 255, 0.04); line-height: 1; pointer-events: none;
}
.page-hero .kicker { color: var(--cyan); }
.page-hero .kicker::before, .page-hero .kicker::after { background: var(--cyan); }
.page-hero h1 { font-size: clamp(34px, 5vw, 56px); font-weight: 900; letter-spacing: 0.04em; color: #fff; }
.page-hero .lead { margin-top: 20px; color: #9aa4c0; max-width: 640px; font-size: 15.5px; line-height: 1.95; }
/* 12大分类导航：滚动时吸顶，随时可跳转到对应区域 */
.case-toolbar {
  position: sticky; top: 76px; z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  padding: 18px 0 16px;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(10, 18, 46, 0.06);
}
.case-stats { display: flex; flex-wrap: wrap; gap: 12px 40px; margin-bottom: 28px; }
.case-toolbar .case-stats { margin-bottom: 14px; }
/* 滚动后收起统计条，吸顶导航保持紧凑 */
.case-toolbar.scrolled .case-stats { display: none; }
.case-toolbar.scrolled { padding-top: 12px; }
.filter-btn.consult-first { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.filter-btn.consult-first.active,
.filter-btn.consult-first:hover {
  background: linear-gradient(135deg, var(--accent), #00a3ff); color: #fff; border-color: transparent;
}
/* 分类区块跳转锚点定位时留出吸顶导航的高度 */
.case-section-title { scroll-margin-top: 190px; }
#consult { scroll-margin-top: 130px; }
.case-stats .cs { font-size: 13.5px; color: var(--muted); letter-spacing: 0.04em; }
.case-stats .cs b { font-size: 22px; color: var(--accent); font-weight: 900; margin-right: 6px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filter-btn {
  border: 1px solid var(--line); background: #fff; color: var(--ink-soft);
  padding: 9px 20px; border-radius: 100px; font-size: 13.5px; font-weight: 600; letter-spacing: 0.04em;
  transition: all 0.25s;
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: linear-gradient(135deg, var(--accent), #00a3ff); color: #fff; border-color: transparent; box-shadow: 0 8px 18px rgba(0, 87, 255, 0.25); }
.filter-btn .cnt { font-size: 11.5px; color: inherit; opacity: 0.6; margin-left: 6px; }
.case-search { flex: 1; min-width: 220px; display: flex; }
.case-search input {
  flex: 1; border: 1px solid var(--line); border-radius: 100px; padding: 10px 22px;
  font-size: 14px; font-family: inherit; letter-spacing: 0.02em; outline: none;
  transition: border-color 0.25s, box-shadow 0.25s; background: #fff;
}
.case-search input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0, 87, 255, 0.12); }
.case-section-title { margin: 56px 0 22px; display: flex; align-items: baseline; gap: 16px; }
.case-section-title h2 { font-size: 25px; font-weight: 900; letter-spacing: 0.04em; }
.case-section-title .cnt { font-size: 13px; color: var(--muted); letter-spacing: 0.06em; }
.case-section-title .rule { flex: 1; height: 1px; background: var(--line); }
.empty-tip { padding: 80px 0; text-align: center; color: var(--muted); letter-spacing: 0.1em; }

/* 战略咨询成果（案例页） */
.consult-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.consult-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  border-top: 4px solid var(--accent); padding: 36px 34px;
}
.consult-card .tag { font-size: 12px; color: var(--accent); font-weight: 800; letter-spacing: 0.18em; }
.consult-card h3 { font-size: 20px; font-weight: 900; margin-top: 14px; line-height: 1.55; }
.consult-card p { margin-top: 16px; font-size: 13.5px; color: var(--muted); line-height: 1.9; }
.consult-card .result { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); font-size: 13.5px; color: var(--accent-deep); line-height: 1.8; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 30px; bottom: 34px; width: 48px; height: 48px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.92); border-radius: 12px;
  display: flex; align-items: center; justify-content: center; color: var(--ink-soft);
  opacity: 0; pointer-events: none; transition: all 0.35s; z-index: 90;
  backdrop-filter: blur(8px); box-shadow: var(--shadow-card);
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { background: linear-gradient(135deg, var(--accent), #00a3ff); color: #fff; border-color: transparent; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .engine-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
  .stat-cell:nth-child(-n+3) { border-top: none; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .why-row { grid-template-columns: 60px 1fr; }
  .why-row p { grid-column: 2; }
}
@media (max-width: 860px) {
  .section { padding: 76px 0; }
  .nav-links {
    position: fixed; top: 76px; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: flex-start; gap: 0; padding: 10px 32px 24px;
    border-bottom: 1px solid var(--line); display: none; box-shadow: 0 24px 40px rgba(0, 0, 0, 0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line-soft); }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-sticky { position: static; }
  .team-grid, .mode-grid { grid-template-columns: 1fr; }
  .promise-grid, .consult-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .client-groups { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-body-inner ul { grid-template-columns: 1fr; }
  .svc-body-inner { padding-left: 8px; }
  .contact-cta { position: static; }
  .hero-inner { padding: 72px 24px 96px; }
  .container { padding: 0 22px; }
  .nav-inner { padding: 0 22px; }
}
@media (max-width: 520px) {
  .case-grid { grid-template-columns: 1fr; }
  .engine-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .brand-text .cn { font-size: 12.5px; }
  .brand-text .en { display: none; }
  .brand-mark { height: 36px; }
  .hero-t1 { font-size: 13px; letter-spacing: 0.3em; }
  .hero-foot { gap: 10px 24px; }
}

/* ---------- 720°VR全景沉浸体验（仿旧官网主页下方全景动图） ---------- */
.pano-section { overflow: hidden; }
.pano-section .section-head { margin-bottom: 48px; }
.pano-stage {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px; overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
}
.pano-frame-wrap {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  background: #0b1124 url('../images/cases/c_9ce02e31c9.jpg') center / cover no-repeat;
}
.pano-frame {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  border: 0; display: block; background: #0b1124;
}
.pano-frame-hint {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  padding: 9px 20px; border-radius: 100px;
  background: rgba(8, 13, 30, 0.72); color: #dbe3ff;
  font-size: 13px; letter-spacing: 0.06em; font-weight: 600;
  pointer-events: none; backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.pano-frame-hint svg { color: var(--cyan); }
.pano-caption {
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  padding: 30px 38px;
}
.pano-caption p { color: #9aa4c0; font-size: 15px; line-height: 1.9; max-width: 720px; }
.pano-caption .btn { white-space: nowrap; }
@media (max-width: 900px) {
  .pano-caption { flex-direction: column; align-items: flex-start; gap: 22px; padding: 26px 24px; }
  .pano-frame-hint { font-size: 12px; padding: 8px 16px; }
}
@media (max-width: 520px) {
  .pano-caption p { font-size: 14px; }
}