/* ==========================================================================
   鑫泉文化传媒 · 官网样式
   暗色霓虹 / 玻璃拟态 / 粒子背景 / 滚动动效
   ========================================================================== */

:root {
  --bg: #05040e;
  --bg-2: #0a0818;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-2: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #edeef7;
  --muted: #9a9dbd;
  --violet: #8b5cff;
  --violet-2: #b06bff;
  --cyan: #25e0ff;
  --pink: #ff3d8b;
  --grad: linear-gradient(120deg, #8b5cff 0%, #b06bff 42%, #25e0ff 100%);
  --grad-rev: linear-gradient(120deg, #25e0ff 0%, #b06bff 55%, #ff3d8b 100%);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1240px;
  --nav-h: 74px;
  --shadow-glow: 0 18px 60px -22px rgba(139, 92, 255, 0.55);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

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

.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }

/* ---------- 背景层 ---------- */
.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.28'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}
#bgCanvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.75; }
.aurora { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; filter: blur(80px); }
.aurora .orb { position: absolute; border-radius: 50%; opacity: 0.5; }
.orb-1 { width: 620px; height: 620px; top: -180px; left: -120px; background: radial-gradient(circle, rgba(139,92,255,.75), transparent 68%); animation: drift1 26s ease-in-out infinite; }
.orb-2 { width: 560px; height: 560px; top: 24%; right: -140px; background: radial-gradient(circle, rgba(37,224,255,.6), transparent 68%); animation: drift2 32s ease-in-out infinite; }
.orb-3 { width: 640px; height: 640px; bottom: -220px; left: 32%; background: radial-gradient(circle, rgba(255,61,139,.45), transparent 70%); animation: drift3 38s ease-in-out infinite; }

@keyframes drift1 { 50% { transform: translate3d(120px, 90px, 0) scale(1.15); } }
@keyframes drift2 { 50% { transform: translate3d(-140px, 60px, 0) scale(1.1); } }
@keyframes drift3 { 50% { transform: translate3d(90px, -110px, 0) scale(1.12); } }

main, .nav, .footer { position: relative; z-index: 2; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  transition: background .35s ease, backdrop-filter .35s ease, border-color .35s ease, box-shadow .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 7, 20, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 40px -24px rgba(0, 0, 0, 0.9);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 52px; height: auto;
}
.brand-mark[src$=".png"] { /* 图片 LOGO：不套渐变方块 */ }
.brand-mark:not([src]) { /* 兼容旧版：无 src 时退回文字方块 */
  height: 42px; border-radius: 13px; display: grid; place-items: center;
  background: var(--grad); font-weight: 800; font-size: 20px; color: #fff;
  box-shadow: 0 8px 26px -10px rgba(139, 92, 255, .9);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 17px; letter-spacing: .5px; }
.brand-text em { font-size: 9px; letter-spacing: 3px; color: var(--muted); font-style: normal; }

.nav-links { display: flex; gap: 6px; }
.nav-links a {
  position: relative; padding: 9px 14px; font-size: 14.5px; color: var(--muted);
  border-radius: 10px; transition: color .25s, background .25s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--grad); border-radius: 2px; transform: scaleX(0); transform-origin: left;
  transition: transform .3s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--surface); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .3s, background .3s, border-color .3s, color .3s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 14px 40px -16px rgba(139, 92, 255, .9);
  background-size: 160% 160%;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 50px -14px rgba(139, 92, 255, 1); background-position: 100% 50%; }
.btn-outline { background: var(--surface); border-color: var(--line-strong); color: var(--text); }
.btn-outline:hover { border-color: rgba(37, 224, 255, .6); background: var(--surface-2); transform: translateY(-2px); }
.btn-ghost { color: var(--muted); }
.btn-ghost:hover { color: var(--text); background: var(--surface); }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-arrow { transition: transform .3s; }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: calc(var(--nav-h) + 92px) 0 110px; overflow: hidden; }
.hero-slides { position: absolute; inset: 0; z-index: -2; }
.hero-slide { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transition: opacity 1.2s ease; }
.hero-slide.active { opacity: 1; }
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(139, 92, 255, .28), transparent 60%),
    linear-gradient(180deg, rgba(10, 8, 24, .2), var(--bg) 92%);
}
.hero-dots { position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.hero-dots button { width: 10px; height: 10px; border-radius: 50%; border: none; background: rgba(255,255,255,.3); cursor: pointer; transition: .3s; padding: 0; }
.hero-dots button.active { width: 28px; border-radius: 5px; background: var(--cyan); box-shadow: 0 0 12px rgba(37,224,255,.6); }
.hero-inner { text-align: center; max-width: 980px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 8px 18px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line-strong); font-size: 13px; color: var(--muted);
  backdrop-filter: blur(12px); margin-bottom: 26px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(37,224,255,.18); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(37, 224, 255, 0); } }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7.4vw, 92px); font-weight: 800; line-height: 1.08; letter-spacing: -1px;
  background: linear-gradient(120deg, #ffffff 0%, #d9cfff 32%, #8b5cff 62%, #25e0ff 100%);
  background-size: 220% 220%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 9s ease-in-out infinite;
  margin-bottom: 18px;
}
@keyframes shimmer { 50% { background-position: 100% 50%; } }
.hero-sub { font-size: clamp(15px, 2vw, 20px); color: #c9c6e6; letter-spacing: 4px; margin-bottom: 22px; }
.hero-desc { max-width: 720px; margin: 0 auto 40px; color: var(--muted); font-size: 15.5px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero-floats { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 62px; }
.float-chip {
  padding: 14px 22px; border-radius: var(--radius-sm); background: var(--surface);
  border: 1px solid var(--line); backdrop-filter: blur(14px); text-align: left; min-width: 148px;
  animation: floaty 6s ease-in-out infinite;
}
.float-chip:nth-child(2) { animation-delay: -1.5s; }
.float-chip:nth-child(3) { animation-delay: -3s; }
.float-chip:nth-child(4) { animation-delay: -4.5s; }
.float-chip b { display: block; font-size: 24px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.float-chip span { font-size: 12.5px; color: var(--muted); }
@keyframes floaty { 50% { transform: translateY(-12px); } }

.scroll-cue { position: absolute; left: 50%; bottom: 30px; transform: translateX(-50%); width: 26px; height: 44px; border: 1px solid var(--line-strong); border-radius: 14px; display: grid; place-items: start center; padding-top: 8px; }
.scroll-cue span { width: 4px; height: 8px; border-radius: 3px; background: var(--cyan); animation: cue 1.8s infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(16px); opacity: 0; } 100% { opacity: 0; } }

/* ---------- 滚动条幅 ---------- */
.ticker { border-block: 1px solid var(--line); padding: 20px 0; overflow: hidden; background: rgba(255, 255, 255, .015); -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.ticker-track { display: flex; gap: 56px; width: max-content; animation: marquee 32s linear infinite; }
.ticker-item { display: inline-flex; align-items: center; gap: 12px; font-size: 16px; color: var(--muted); white-space: nowrap; font-weight: 600; letter-spacing: .5px; }
.ticker-item::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--grad); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 通用区块 ---------- */
.section { padding: 108px 0; position: relative; }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.kicker { display: inline-block; font-size: 12px; letter-spacing: 5px; color: var(--cyan); font-weight: 700; margin-bottom: 14px; }
.sec-head h2 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 46px); font-weight: 800; line-height: 1.2; letter-spacing: -.5px; margin-bottom: 12px; }
.sec-head p { color: var(--muted); font-size: 15.5px; }
.glass { background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.025)); border: 1px solid var(--line); border-radius: var(--radius); backdrop-filter: blur(16px); }

/* ---------- 数据 ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card { position: relative; padding: 34px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; transition: transform .4s, border-color .4s; }
.stat-card::after { content: ''; position: absolute; inset: 0; background: radial-gradient(120% 100% at 50% -30%, rgba(139,92,255,.25), transparent 62%); opacity: 0; transition: opacity .4s; }
.stat-card:hover { transform: translateY(-6px); border-color: rgba(139, 92, 255, .5); }
.stat-card:hover::after { opacity: 1; }
.stat-num { font-family: var(--font-display); font-size: clamp(32px, 4.4vw, 52px); font-weight: 800; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-suffix { font-size: 18px; color: var(--cyan); font-weight: 700; margin-left: 2px; }
.stat-label { margin-top: 12px; color: var(--muted); font-size: 14px; letter-spacing: .5px; }

/* ---------- 核心业务 ---------- */
.core-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.core-card { position: relative; padding: 32px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; transition: transform .45s cubic-bezier(.2,.8,.2,1), border-color .4s; }
.core-card::before {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .4s;
}
.core-card:hover { transform: translateY(-8px); }
.core-card:hover::before { opacity: 1; }
.core-idx { font-family: var(--font-display); font-size: 40px; font-weight: 800; color: rgba(255,255,255,.07); position: absolute; top: 14px; right: 20px; }
.core-ico { width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(139,92,255,.28), rgba(37,224,255,.2)); border: 1px solid var(--line-strong); margin-bottom: 18px; color: var(--cyan); }
.core-ico svg { width: 26px; height: 26px; }
.core-card h3 { font-size: 21px; font-weight: 700; margin-bottom: 10px; }
.core-card p { color: var(--muted); font-size: 14px; }
.core-feats { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.core-feats span { font-size: 11.5px; padding: 4px 10px; border-radius: 999px; background: rgba(139,92,255,.14); border: 1px solid rgba(139,92,255,.28); color: #cbb7ff; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.tab { padding: 11px 24px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); color: var(--muted); cursor: pointer; font-size: 14.5px; font-weight: 600; transition: .3s; }
.tab:hover { color: var(--text); border-color: var(--line-strong); }
.tab.active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 12px 34px -16px rgba(139,92,255,.9); }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card { position: relative; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; transition: transform .45s cubic-bezier(.2,.8,.2,1), border-color .4s; }
.case-card:hover { transform: translateY(-8px); border-color: rgba(37,224,255,.45); }
.case-cover { aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, rgba(139,92,255,.15), rgba(37,224,255,.08)); }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card:hover .case-cover img { transform: scale(1.06); }
.case-top { padding: 26px 26px 18px; position: relative; }
.case-top::after { content: ''; position: absolute; inset: 0; background: radial-gradient(110% 90% at 20% 0%, rgba(139,92,255,.22), transparent 62%); pointer-events: none; }
.case-industry { display: inline-block; font-size: 11.5px; padding: 4px 12px; border-radius: 999px; background: rgba(37,224,255,.12); border: 1px solid rgba(37,224,255,.3); color: #8fe7ff; margin-bottom: 14px; }
.case-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.case-card p.case-sum { color: var(--muted); font-size: 13.6px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.case-stats { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 26px 20px; margin-top: auto; }
.case-stat { flex: 1 1 84px; padding: 12px 10px; border-radius: 12px; background: rgba(255,255,255,.05); border: 1px solid var(--line); text-align: center; }
.case-stat b { display: block; font-size: 18px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; word-break: break-all; }
.case-stat span { font-size: 11px; color: var(--muted); }
.case-more { border-top: 1px solid var(--line); padding: 14px 26px; font-size: 13.5px; color: var(--cyan); display: flex; align-items: center; justify-content: space-between; cursor: pointer; background: none; border-left: 0; border-right: 0; border-bottom: 0; width: 100%; transition: background .3s; }
.case-card:hover .case-more { background: rgba(37,224,255,.07); }

/* ---------- 服务体系 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.svc-card { position: relative; padding: 30px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; transition: transform .45s, border-color .4s; }
.svc-card:hover { transform: translateY(-8px); border-color: rgba(255,61,139,.42); }
.svc-tier { font-family: var(--font-display); font-size: 14px; font-weight: 800; letter-spacing: 2px; color: transparent; background: var(--grad-rev); -webkit-background-clip: text; background-clip: text; }
.svc-card h3 { font-size: 19.5px; margin: 12px 0 12px; }
.svc-card p { color: var(--muted); font-size: 13.8px; }
.svc-feats { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.svc-feats span { font-size: 12.8px; color: #c6c9e6; padding-left: 16px; position: relative; }
.svc-feats span::before { content: ''; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--grad); }
.svc-aud { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line-strong); font-size: 12.6px; color: #9fe6ff; }

/* ---------- 流程 ---------- */
.process-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative; }
.process-step { position: relative; padding: 28px 20px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--line); transition: transform .4s, border-color .4s; }
.process-step:hover { transform: translateY(-6px); border-color: rgba(139,92,255,.5); }
.process-num { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; font-size: 17px; background: var(--grad); color: #fff; margin-bottom: 16px; box-shadow: 0 10px 26px -12px rgba(139,92,255,.9); }
.process-step h3 { font-size: 16.5px; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--muted); }

/* ---------- 为什么 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.why-card { padding: 36px 30px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); position: relative; overflow: hidden; transition: transform .45s, border-color .4s; }
.why-card:hover { transform: translateY(-8px); border-color: rgba(37,224,255,.4); }
.why-ico { width: 58px; height: 58px; border-radius: 17px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(139,92,255,.3), rgba(37,224,255,.18)); border: 1px solid var(--line-strong); color: var(--cyan); margin-bottom: 20px; }
.why-ico svg { width: 28px; height: 28px; }
.why-card h3 { font-size: 21px; margin-bottom: 12px; }
.why-card p { color: var(--muted); font-size: 14.4px; }

/* ---------- 实力 ---------- */
.strength-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.strength-card { padding: 30px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); transition: transform .45s, border-color .4s; }
.strength-card:hover { transform: translateY(-6px); border-color: rgba(176,107,255,.5); }
.strength-ico { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; background: rgba(139,92,255,.16); border: 1px solid var(--line-strong); color: #cbb7ff; margin-bottom: 18px; }
.strength-ico svg { width: 25px; height: 25px; }
.strength-card h3 { font-size: 18px; margin-bottom: 10px; }
.strength-card p { font-size: 13.6px; color: var(--muted); }

/* ---------- 关于我们 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.35fr 1fr; gap: 24px; align-items: start; }
.about-card { padding: 44px; }
.about-card h2 { font-family: var(--font-display); font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; margin-bottom: 20px; }
.about-intro { color: #d3d2ea; font-size: 15.4px; margin-bottom: 18px; }
.about-body { color: var(--muted); font-size: 14.6px; }
.about-body p { margin-bottom: 16px; }
.about-mv { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; }
.mv-item { padding: 20px; border-radius: var(--radius-sm); background: rgba(139,92,255,.1); border: 1px solid rgba(139,92,255,.24); }
.mv-label { display: inline-block; font-size: 11px; letter-spacing: 3px; color: var(--cyan); font-weight: 700; margin-bottom: 8px; }
.mv-item p { font-size: 14px; color: #d6d5ec; }
.about-side { display: flex; flex-direction: column; gap: 24px; }
.side-card { padding: 30px; }
.side-card h3 { font-size: 19px; margin-bottom: 14px; }
.side-card p { color: var(--muted); font-size: 14.2px; }
.partner-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.partner-tags span { font-size: 12px; padding: 5px 12px; border-radius: 999px; background: rgba(37,224,255,.1); border: 1px solid rgba(37,224,255,.26); color: #99e9ff; }
.flag-list { display: flex; flex-direction: column; gap: 12px; margin-top: 6px; }
.flag-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: #cfd0e8; }
.flag-list i { color: var(--cyan); font-style: normal; font-size: 11px; margin-top: 6px; }
.flag-list b { color: #fff; }

/* ---------- 关于我们图片画廊 ---------- */
.about-gallery { margin-top: 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.about-gallery .g-item { position: relative; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--line); background: var(--surface); aspect-ratio: 4/3; cursor: pointer; transition: transform .4s, border-color .4s; }
.about-gallery .g-item:nth-child(1) { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.about-gallery .g-item:hover { transform: translateY(-4px); border-color: rgba(37,224,255,.45); }
.about-gallery .g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.about-gallery .g-item:hover img { transform: scale(1.06); }
.about-gallery .g-item .g-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 14px 12px; background: linear-gradient(180deg, transparent, rgba(5,4,14,.85)); font-size: 12.5px; color: #d8d9f0; opacity: 0; transition: opacity .3s; }
.about-gallery .g-item:hover .g-cap { opacity: 1; }

/* ---------- 团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.team-card { padding: 30px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); transition: transform .45s, border-color .4s; }
.team-card:hover { transform: translateY(-8px); border-color: rgba(139,92,255,.5); }
.team-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.team-avatar { width: 62px; height: 62px; border-radius: 19px; display: grid; place-items: center; font-family: var(--font-display); font-size: 24px; font-weight: 800; color: #fff; background: var(--grad); box-shadow: 0 12px 30px -14px rgba(139,92,255,.9); flex-shrink: 0; overflow: hidden; }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 20px; }
.team-role { font-size: 12.5px; color: var(--cyan); letter-spacing: 1px; }
.team-bio { font-size: 13.6px; color: var(--muted); }
.team-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.team-tags span { font-size: 11.5px; padding: 4px 11px; border-radius: 8px; background: rgba(255,255,255,.06); border: 1px solid var(--line); color: #c8cae4; }

/* ---------- 资讯 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card { padding: 30px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; cursor: pointer; transition: transform .45s, border-color .4s; }
.news-cover { aspect-ratio: 16/9; border-radius: 12px; overflow: hidden; margin-bottom: 20px; background: linear-gradient(135deg, rgba(139,92,255,.15), rgba(255,61,139,.1)); }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.news-card:hover .news-cover img { transform: scale(1.05); }
.news-card:hover { transform: translateY(-8px); border-color: rgba(37,224,255,.42); }
.news-cat { font-size: 11.5px; color: var(--cyan); letter-spacing: 2px; margin-bottom: 12px; }
.news-card h3 { font-size: 18px; line-height: 1.45; margin-bottom: 12px; }
.news-card p { font-size: 13.6px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { margin-top: auto; padding-top: 18px; font-size: 12.5px; color: #7f81a3; display: flex; justify-content: space-between; }

/* ---------- 联系 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.05fr; gap: 28px; }
.contact-info h2 { font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; margin: 12px 0 16px; }
.contact-lead { color: var(--muted); font-size: 15px; margin-bottom: 30px; max-width: 460px; }
.contact-list { display: flex; flex-direction: column; gap: 16px; }
.contact-list li { display: flex; gap: 14px; align-items: center; }
.ci-ico { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--line); color: var(--cyan); font-size: 18px; flex-shrink: 0; }
.contact-list em { display: block; font-style: normal; font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.contact-list b { font-size: 15.5px; font-weight: 600; }
.qr-row { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.qr-box { flex: 1 1 150px; padding: 16px 20px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--line); }
.qr-box span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.qr-box b { font-size: 15px; }

.contact-form { padding: 38px; }
.contact-form h3 { font-size: 22px; margin-bottom: 24px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: block; margin-bottom: 16px; }
.field span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 16px; border-radius: 12px; background: rgba(255,255,255,.05);
  border: 1px solid var(--line); outline: none; font-size: 14.5px; transition: border-color .25s, background .25s, box-shadow .25s;
}
.field textarea { resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: rgba(139,92,255,.65); background: rgba(139,92,255,.08); box-shadow: 0 0 0 4px rgba(139,92,255,.14); }
.field select option { background: #14122a; }
.field.invalid input, .field.invalid textarea { border-color: rgba(255,61,139,.7); box-shadow: 0 0 0 4px rgba(255,61,139,.12); }
.form-tip { font-size: 12.5px; color: #7f81a3; text-align: center; margin-top: 14px; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); padding: 70px 0 30px; background: rgba(255,255,255,.015); }
.footer-inner { display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 40px; }
.footer-brand p { color: var(--muted); font-size: 14.4px; margin-top: 18px; max-width: 380px; }
.footer-note { font-size: 13px !important; color: #7f81a3 !important; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h4 { font-size: 14px; letter-spacing: 1px; margin-bottom: 16px; color: #fff; }
.footer-col a { display: block; font-size: 13.8px; color: var(--muted); margin-bottom: 11px; transition: color .25s, transform .25s; }
.footer-col a:hover { color: var(--cyan); transform: translateX(3px); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 12.6px; color: #7f81a3; }

/* ---------- 弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 90; display: none; }
.modal.open { display: grid; place-items: center; padding: 24px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4, 3, 12, .78); backdrop-filter: blur(8px); animation: fadeIn .3s; }
.modal-panel { position: relative; width: min(760px, 100%); max-height: 86vh; overflow-y: auto; padding: 44px; animation: pop .4s cubic-bezier(.2,.8,.2,1); }
.modal-cover { margin: -44px -44px 24px; aspect-ratio: 16/9; overflow: hidden; background: #111; }
.modal-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-screens { display: flex; flex-direction: column; gap: 14px; margin-top: 10px; }
.cs-item { margin: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.cs-item img { width: 100%; height: auto; display: block; }
.cs-item figcaption { padding: 10px 14px; font-size: 12.5px; color: var(--muted); line-height: 1.5; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 38px; height: 38px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); color: var(--muted); cursor: pointer; transition: .25s; }
.modal-close:hover { color: #fff; border-color: var(--line-strong); }
.modal-body h2 { font-family: var(--font-display); font-size: 27px; margin-bottom: 8px; line-height: 1.35; }
.modal-body .modal-industry { display: inline-block; font-size: 12px; padding: 4px 12px; border-radius: 999px; background: rgba(37,224,255,.12); border: 1px solid rgba(37,224,255,.3); color: #8fe7ff; margin-bottom: 14px; }
.modal-body .modal-txt { color: #c8c7e0; font-size: 14.8px; margin-bottom: 16px; }
.modal-body .modal-txt p { margin-bottom: 14px; }
.modal-stats { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0; }
.modal-stats .case-stat { flex: 1 1 110px; }
.modal-block { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.modal-block h4 { font-size: 14px; color: var(--cyan); letter-spacing: 2px; margin-bottom: 12px; }
.modal-block p { color: var(--muted); font-size: 14.2px; }
@keyframes fadeIn { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(24px) scale(.97); } }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 30px); z-index: 120; padding: 14px 26px; border-radius: 999px; background: rgba(20, 18, 42, .95); border: 1px solid var(--line-strong); font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .35s, transform .35s; backdrop-filter: blur(14px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.ok { border-color: rgba(37, 224, 255, .5); }
.toast.err { border-color: rgba(255, 61, 139, .6); }

.back-top { position: fixed; right: 26px; bottom: 30px; z-index: 70; width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--line-strong); color: var(--text); cursor: pointer; backdrop-filter: blur(12px); opacity: 0; pointer-events: none; transition: .35s; }
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { border-color: rgba(139,92,255,.7); transform: translateY(-3px); }

/* ---------- 滚动动效 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .stat-grid, .core-grid, .svc-grid, .strength-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid, .team-grid, .news-grid, .process-track { grid-template-columns: repeat(2, 1fr); }
  .about-wrap, .contact-wrap, .footer-inner { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 760px) {
  .container { width: calc(100% - 32px); }
  .nav-toggle { display: flex; }
  .nav-actions .btn-ghost, .nav-actions .btn-primary { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(8, 7, 20, .97); backdrop-filter: blur(18px); padding: 16px; gap: 4px; border-bottom: 1px solid var(--line);
  }
  .section { padding: 74px 0; }
  .stat-grid, .core-grid, .svc-grid, .strength-grid, .case-grid, .team-grid, .news-grid, .process-track, .field-row, .about-mv { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .about-card, .contact-form { padding: 28px; }
  .about-gallery { grid-template-columns: repeat(2, 1fr); }
  .about-gallery .g-item:nth-child(1) { grid-column: span 2; grid-row: span 1; aspect-ratio: 16/9; }
  .hero { padding-top: calc(var(--nav-h) + 56px); }
  .hero-floats { margin-top: 40px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .modal-panel { padding: 30px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}