/* ============================================
   四川领维智筑信息科技有限公司 - 企业官网样式
   设计风格：简约大气、科技感
   ============================================ */

/* CSS变量 */
:root {
    --primary: #0062cc;
    --accent: #00d4ff;
    --accent2: #0099ff;
    --dark: #040d1a;
    --dark2: #071428;
    --dark3: #0a1f36;
    --card-bg: rgba(10, 30, 55, 0.8);
    --text: #e8f0fe;
    --text-muted: #7a9cc0;
    --border: rgba(0, 212, 255, 0.15);
    --glass: rgba(0, 100, 200, 0.08);
    --nav-h: 70px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.7;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 页面切换隐藏 */
.page-section.hidden { display: none !important; }

/* ============ 导航栏 ============ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
    z-index: 1000; transition: var(--transition);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 98, 204, 0.12);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.12);
    border-bottom-color: rgba(0, 98, 204, 0.15);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.nav-brand { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.nav-logo-img { height: 44px; width: auto; object-fit: contain; transition: var(--transition); }
.nav-logo-img:hover { filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.5)); }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-item {
    padding: 8px 16px; font-size: 14px; color: rgba(20, 40, 80, 0.75);
    border-radius: 6px; transition: var(--transition); position: relative;
    font-weight: 400; letter-spacing: 0.5px;
}
.nav-item::after {
    content: ''; position: absolute; bottom: 2px; left: 16px; right: 16px;
    height: 2px; background: var(--primary); transform: scaleX(0);
    transition: transform 0.3s ease; border-radius: 1px;
}
.nav-item:hover, .nav-item.active { color: var(--primary); background: rgba(0, 98, 204, 0.06); }
.nav-item.active::after, .nav-item:hover::after { transform: scaleX(1); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--primary); border-radius: 1px; transition: var(--transition); }

/* ============ 页面区域 ============ */
.page-section { min-height: 100vh; }
.page-section.hidden { display: none; }

/* ============ HERO 首页 ============ */
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; position: relative; overflow: hidden; padding: var(--nav-h) 0 80px; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #040d1a 0%, #071428 50%, #051020 100%); }
.grid-lines {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px; mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.particles { position: absolute; inset: 0; overflow: hidden; }
.particle { position: absolute; width: 2px; height: 2px; background: var(--accent); border-radius: 50%; animation: float linear infinite; opacity: 0; }
@keyframes float { 0% { transform: translateY(100vh) translateX(0); opacity: 0; } 10% { opacity: 0.7; } 90% { opacity: 0.3; } 100% { transform: translateY(-20px) translateX(20px); opacity: 0; } }
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: rgba(0, 212, 255, 0.1); border: 1px solid rgba(0, 212, 255, 0.25); border-radius: 20px; font-size: 12px; color: var(--accent); letter-spacing: 1px; margin-bottom: 24px; animation: fadeInUp 0.6s ease forwards; }
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(1.3); } }
.hero-title { display: flex; flex-direction: column; font-size: clamp(40px, 6vw, 72px); font-weight: 700; line-height: 1.1; margin-bottom: 16px; animation: fadeInUp 0.7s ease 0.1s both; }
.title-line { color: #fff; }
.title-line.accent { background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 16px; color: var(--text-muted); margin-bottom: 12px; letter-spacing: 2px; animation: fadeInUp 0.7s ease 0.15s both; }
.hero-desc { font-size: 15px; color: rgba(232, 240, 254, 0.6); margin-bottom: 40px; line-height: 1.8; animation: fadeInUp 0.7s ease 0.2s both; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; animation: fadeInUp 0.7s ease 0.25s both; }
.btn-primary { padding: 14px 36px; background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%); color: #fff; border: none; border-radius: 8px; font-size: 15px; font-weight: 500; cursor: pointer; transition: var(--transition); letter-spacing: 1px; box-shadow: 0 4px 20px rgba(0, 100, 200, 0.4); font-family: inherit; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 100, 200, 0.6); }
.btn-outline { padding: 14px 36px; background: transparent; color: var(--accent); border: 1px solid rgba(0, 212, 255, 0.4); border-radius: 8px; font-size: 15px; font-weight: 400; cursor: pointer; transition: var(--transition); letter-spacing: 1px; font-family: inherit; }
.btn-outline:hover { background: rgba(0, 212, 255, 0.08); border-color: var(--accent); transform: translateY(-2px); }
.hero-scroll { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--text-muted); font-size: 11px; letter-spacing: 2px; animation: fadeIn 1s ease 1s both; }
.scroll-arrow { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--accent), transparent); animation: scrollPulse 1.5s ease infinite; }
@keyframes scrollPulse { 0%,100% { opacity:0.5; } 50% { opacity:1; } }

/* ============ 统计栏 ============ */
.stats-bar { background: var(--dark2); border-top:1px solid var(--border); border-bottom:1px solid var(--border); padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item { position: relative; }
.stat-item:not(:last-child)::after { content: ''; position: absolute; right: 0; top: 10%; height: 80%; width: 1px; background: var(--border); }
.stat-num { font-size: 42px; font-weight: 700; color: var(--accent); line-height: 1; margin-bottom: 8px; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 13px; color: var(--text-muted); letter-spacing: 1px; }

/* ============ 区块通用 ============ */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header.left { text-align: left; }
.section-tag { display: inline-block; font-size: 11px; color: var(--accent); letter-spacing: 3px; margin-bottom: 12px; font-weight: 500; }
.section-header h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 700; color: #fff; margin-bottom: 12px; }
.section-header p { font-size: 15px; color: var(--text-muted); }

/* ============ 首页服务 ============ */
.home-services { padding: 80px 0; background: var(--dark); }
.service-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 28px 24px; cursor: pointer; transition: var(--transition); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--primary)); transform: scaleX(0); transition: transform 0.3s ease; }
.service-card:hover { border-color: rgba(0, 212, 255, 0.35); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0, 100, 200, 0.2); }
.service-card:hover::before { transform: scaleX(1); }
.card-icon { width: 48px; height: 48px; margin-bottom: 16px; }
.service-card h3 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.service-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.card-arrow { color: var(--accent); font-size: 18px; transition: transform 0.3s ease; }
.service-card:hover .card-arrow { transform: translateX(4px); }

/* ============ 首页亮点 ============ */
.home-highlights { padding: 80px 0; background: var(--dark2); }
.highlight-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.highlight-list { display: flex; flex-direction: column; gap: 24px; }
.highlight-item { display: flex; gap: 16px; align-items: flex-start; padding: 16px; background: var(--glass); border: 1px solid var(--border); border-radius: 10px; transition: var(--transition); }
.highlight-item:hover { background: rgba(0, 100, 200, 0.12); border-color: rgba(0, 212, 255, 0.3); }
.h-icon { width: 24px; height: 24px; flex-shrink: 0; margin-top: 2px; }
.highlight-item h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.highlight-item p { font-size: 13px; color: var(--text-muted); }
.highlight-visual { display: flex; justify-content: center; align-items: center; }
.tech-circle { position: relative; width: 300px; height: 300px; display: flex; align-items: center; justify-content: center; }
.tc-outer, .tc-middle { position: absolute; border-radius: 50%; border: 1px solid rgba(0, 212, 255, 0.2); }
.tc-outer { width: 300px; height: 300px; animation: rotateSlow 20s linear infinite; border-top-color: var(--accent); }
.tc-middle { width: 220px; height: 220px; animation: rotateSlow 14s linear infinite reverse; border-left-color: var(--accent2); }
.tc-inner { position: relative; width: 140px; height: 140px; background: linear-gradient(135deg, rgba(0, 100, 200, 0.3), rgba(0, 50, 100, 0.5)); border-radius: 50%; border: 1px solid rgba(0, 212, 255, 0.3); display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 14px; font-weight: 600; color: var(--accent); letter-spacing: 1px; gap: 2px; }
.tc-inner span:nth-child(2) { font-size: 18px; font-weight: 300; }
@keyframes rotateSlow { to { transform: rotate(360deg); } }
.tc-dot { position: absolute; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 10px var(--accent); }
.d1 { top: 8px; left: 50%; transform: translateX(-50%); }
.d2 { bottom: 8px; left: 50%; transform: translateX(-50%); }
.d3 { left: 8px; top: 50%; transform: translateY(-50%); }
.d4 { right: 8px; top: 50%; transform: translateY(-50%); }

/* ============================================ */
/*            子页面通用 Hero 样式              */
/* ============================================ */
.page-hero-about, .page-hero-services, .page-hero-projects, .page-hero-contact {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
    text-align: center;
}
.page-hero-bg { position: absolute; inset: 0; background: linear-gradient(180deg, #071428 0%, #040d1a 100%); }
.ph-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, black 40%, transparent 100%);
}
.ph-glow {
    position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 600px; height: 400px;
    background: radial-gradient(ellipse, rgba(0, 100, 200, 0.15) 0%, transparent 70%);
    pointer-events: none;
}
.page-hero-tag {
    display: inline-block;
    font-size: 11px; color: var(--accent); letter-spacing: 4px;
    margin-bottom: 16px; font-weight: 500; position: relative;
}
.page-hero-title {
    font-size: clamp(34px, 5vw, 56px); font-weight: 700; color: #fff;
    margin-bottom: 12px; position: relative;
}
.page-hero-title .accent {
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-hero-sub {
    font-size: 15px; color: var(--text-muted); position: relative;
    max-width: 600px; margin: 0 auto;
}

/* ============================================ */
/*            关于我们 - 新版设计               */
/* ============================================ */

/* 公司简介区域 */
.about-section { padding: 80px 0 0; }
.about-intro-grid { display: grid; grid-template-columns: 1fr 400px; gap: 56px; align-items: start; }
.about-intro-text { padding-top: 8px; }
.about-lead { font-size: 17px; color: var(--text); margin-bottom: 20px; line-height: 1.9; }
.about-intro-text p { font-size: 14px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.8; }
.about-intro-text strong { color: var(--accent); font-weight: 600; }
.about-cert-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.cert-badge { display: flex; align-items: center; gap: 6px; padding: 6px 14px; background: rgba(0, 212, 255, 0.06); border: 1px solid rgba(0, 212, 255, 0.15); border-radius: 20px; font-size: 12px; color: var(--text-muted); }
.cert-icon { color: var(--accent); font-size: 14px; font-weight: 700; }

/* 核心数据 */
.about-intro-stats { display: flex; flex-direction: column; gap: 16px; }
.about-big-stat {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 18px 20px;
}
.abs-num { font-size: 36px; font-weight: 700; color: var(--accent); line-height: 1; margin-bottom: 4px; }
.abs-num span { font-size: 18px; font-weight: 400; margin-left: 2px; color: var(--text-muted); }
.abs-label { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; letter-spacing: 1px; }
.abs-bar { height: 4px; background: rgba(0, 212, 255, 0.1); border-radius: 2px; overflow: hidden; }
.abs-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--primary)); border-radius: 2px; transition: width 1.5s ease; }

/* 数据看板 */
.about-dashboard { padding: 48px 0 0; }
.dashboard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.dash-card {
    background: linear-gradient(135deg, rgba(0, 100, 200, 0.12), rgba(0, 50, 100, 0.2));
    border: 1px solid var(--border); border-radius: 14px;
    padding: 28px 20px; text-align: center; transition: var(--transition);
}
.dash-card:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0, 50, 100, 0.3); }
.dash-icon { width: 40px; height: 40px; margin: 0 auto 12px; }
.dash-num { font-size: 32px; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.dash-num span { font-size: 16px; font-weight: 400; }
.dash-label { font-size: 13px; color: var(--text-muted); }

/* 服务流程 */
.about-process { padding: 72px 0; }
.process-flow { display: flex; align-items: flex-start; justify-content: center; gap: 0; margin-top: 40px; }
.process-step { text-align: center; max-width: 200px; padding: 0 16px; }
.ps-circle {
    width: 64px; height: 64px; border-radius: 50%;
    background: linear-gradient(135deg, rgba(0, 100, 200, 0.3), rgba(0, 212, 255, 0.1));
    border: 2px solid rgba(0, 212, 255, 0.3);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px; transition: var(--transition);
}
.ps-circle span { font-size: 18px; font-weight: 700; color: var(--accent); }
.process-step:hover .ps-circle { border-color: var(--accent); box-shadow: 0 0 20px rgba(0, 212, 255, 0.25); }
.process-step h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.process-connector {
    flex: 0 0 60px; height: 2px; margin-top: 32px;
    background: linear-gradient(90deg, rgba(0, 212, 255, 0.4), rgba(0, 212, 255, 0.1));
    position: relative;
}
.process-connector::after {
    content: '→'; position: absolute; right: -4px; top: -9px;
    color: var(--accent); font-size: 12px;
}

/* 组织架构 V2 */
.about-org-section { padding: 64px 0 72px; background: var(--dark2); }
.org-chart-v2 { max-width: 900px; margin: 0 auto; }
.org-ceo { display: flex; justify-content: center; margin-bottom: 40px; position: relative; }
.org-ceo::after {
    content: ''; position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%);
    width: 2px; height: 20px; background: rgba(0, 212, 255, 0.3);
}
.org-node { padding: 10px 20px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; color: var(--text); transition: var(--transition); white-space: nowrap; }
.ceo-node { background: linear-gradient(135deg, rgba(0, 100, 200, 0.35), rgba(0, 50, 100, 0.4)); border-color: rgba(0, 212, 255, 0.35); color: var(--accent); font-weight: 600; font-size: 15px; padding: 14px 36px; display: flex; align-items: center; gap: 8px; }
.org-node-icon { font-size: 10px; }
.director-node { background: rgba(0, 100, 200, 0.15); border-color: rgba(0, 212, 255, 0.2); font-weight: 500; }
.dept-node { font-size: 12px; padding: 8px 14px; }
.org-node:hover { border-color: rgba(0, 212, 255, 0.4); color: var(--accent); }
.org-branches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.org-branch { text-align: center; }
.org-branch > .org-node { margin-bottom: 16px; display: inline-block; }
.org-subs { display: flex; flex-direction: column; gap: 8px; align-items: center; }

/* 专家团队 V2 */
.about-experts { padding: 72px 0; }
.experts-grid-v2 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.expert-card-v2 {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 32px 24px; text-align: center;
    transition: var(--transition);
}
.expert-card-v2:hover { border-color: rgba(0, 212, 255, 0.35); transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0, 50, 100, 0.3); }
.expert-avatar-lg { width: 80px; height: 80px; margin: 0 auto 16px; }
.expert-body h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.expert-role { font-size: 13px; color: var(--accent); margin-bottom: 16px; font-weight: 500; }
.expert-items { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.expert-items span { padding: 4px 10px; background: rgba(0, 212, 255, 0.06); border: 1px solid rgba(0, 212, 255, 0.12); border-radius: 12px; font-size: 11px; color: var(--text-muted); }

/* 企业价值观 V2 */
.about-values { padding: 64px 0 80px; background: var(--dark2); }
.values-grid-v2 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value-card-v2 {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 32px 20px; text-align: center;
    transition: var(--transition); position: relative; overflow: hidden;
}
.value-card-v2::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.4s ease;
}
.value-card-v2:hover { border-color: rgba(0, 212, 255, 0.35); transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0, 50, 100, 0.3); }
.value-card-v2:hover::after { transform: scaleX(1); }
.vc-icon-wrap { width: 64px; height: 64px; margin: 0 auto 16px; background: linear-gradient(135deg, rgba(0, 100, 200, 0.3), rgba(0, 212, 255, 0.1)); border: 1px solid rgba(0, 212, 255, 0.2); border-radius: 20px; display: flex; align-items: center; justify-content: center; }
.vc-icon { font-size: 24px; font-weight: 700; color: var(--accent); }
.value-card-v2 h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.value-card-v2 p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ============================================ */
/*            产品服务 - 新版设计               */
/* ============================================ */

/* 服务导航 */
.services-nav {
    display: flex; justify-content: center; gap: 8px; margin-top: 40px;
    position: relative; flex-wrap: wrap;
}
.svc-nav-item {
    padding: 8px 20px; font-size: 13px; color: var(--text-muted);
    border: 1px solid var(--border); border-radius: 20px;
    transition: var(--transition); position: relative;
}
.svc-nav-item:hover { color: var(--accent); border-color: rgba(0, 212, 255, 0.4); background: rgba(0, 212, 255, 0.06); }

/* 服务区块 */
.svc-block { padding: 72px 0; }
.svc-block-alt { background: var(--dark2); }
.svc-header { display: flex; flex-direction: column; gap: 16px; margin-bottom: 20px; }
.svc-header-left { display: flex; align-items: flex-start; gap: 24px; }
.svc-num { font-size: 52px; font-weight: 700; color: rgba(0, 212, 255, 0.12); line-height: 1; flex-shrink: 0; font-variant-numeric: tabular-nums; margin-top: -6px; }
.svc-header-left h2 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.svc-en { font-size: 12px; color: var(--accent); letter-spacing: 2px; }
.svc-header-line { height: 1px; background: linear-gradient(90deg, rgba(0, 212, 255, 0.2), transparent); max-width: 300px; }
.svc-desc { font-size: 15px; color: var(--text-muted); line-height: 1.9; margin-bottom: 36px; max-width: 800px; }

/* 全生命周期 */
.svc-lifecycle { margin: 40px 0; }
.lifecycle-title { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.lifecycle-title span { font-size: 14px; color: var(--accent); font-weight: 600; letter-spacing: 1px; }
.lifecycle-stages { display: flex; align-items: stretch; gap: 0; }
.stage-card {
    flex: 1; background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 24px 20px; transition: var(--transition);
}
.stage-card:hover { border-color: rgba(0, 212, 255, 0.35); transform: translateY(-3px); }
.stage-num { display: inline-block; padding: 4px 14px; background: rgba(0, 212, 255, 0.1); border: 1px solid rgba(0, 212, 255, 0.2); border-radius: 12px; font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 14px; }
.stage-card ul li { font-size: 13px; color: var(--text-muted); padding: 4px 0; padding-left: 14px; position: relative; }
.stage-card ul li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); font-size: 10px; }
.stage-arrow {
    display: flex; align-items: center; justify-content: center;
    padding: 0 8px; color: rgba(0, 212, 255, 0.3); font-size: 18px;
    flex-shrink: 0;
}

/* 服务领域 */
.svc-domains { margin-top: 32px; }
.svc-domains h4 { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; letter-spacing: 1px; }
.domain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.domain-grid span { padding: 10px 16px; background: rgba(0, 100, 200, 0.08); border: 1px solid rgba(0, 100, 200, 0.15); border-radius: 8px; font-size: 13px; color: var(--text-muted); }

/* 数字服务网格 */
.digital-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.digital-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px 18px; text-align: center;
    transition: var(--transition);
}
.digital-card:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0, 50, 100, 0.25); }
.digital-card-icon { width: 48px; height: 48px; margin: 0 auto 12px; }
.digital-card h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.digital-card p { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

/* 动画服务 */
.anim-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.anim-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px 18px; text-align: center;
    transition: var(--transition);
}
.anim-card:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0, 50, 100, 0.25); }
.anim-card-top { width: 40px; height: 40px; margin: 0 auto 12px; }
.anim-card h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.anim-card p { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

/* 工程造价 */
.cost-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cost-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px 16px; text-align: center;
    transition: var(--transition);
}
.cost-card:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateY(-4px); }
.cost-card-icon { width: 40px; height: 40px; margin: 0 auto 10px; }
.cost-card h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.cost-card p { font-size: 12px; color: var(--text-muted); }

/* 投资策划 */
.invest-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.invest-item { display: flex; gap: 14px; padding: 20px; background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; transition: var(--transition); }
.invest-item:hover { border-color: rgba(0, 212, 255, 0.3); }
.invest-dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; margin-top: 6px; flex-shrink: 0; box-shadow: 0 0 12px rgba(0, 212, 255, 0.4); }
.invest-content h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.invest-content p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* CTA */
.svc-cta { padding: 72px 0 80px; }
.cta-card {
    background: linear-gradient(135deg, rgba(0, 100, 200, 0.15), rgba(0, 50, 100, 0.25));
    border: 1px solid rgba(0, 212, 255, 0.2); border-radius: 20px;
    padding: 48px 32px; text-align: center;
}
.cta-card h2 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.cta-card p { font-size: 15px; color: var(--text-muted); margin-bottom: 24px; }

/* ============================================ */
/*            业绩展示 - 新版设计               */
/* ============================================ */

/* 项目看板 */
.project-dashboard { padding: 48px 0 16px; }
.pd-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pd-item {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px 20px; text-align: center;
    transition: var(--transition);
}
.pd-item:hover { border-color: rgba(0, 212, 255, 0.25); transform: translateY(-3px); }
.pd-icon { font-size: 28px; margin-bottom: 8px; }
.pd-num { font-size: 28px; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.pd-label { font-size: 13px; color: var(--text-muted); }

/* 项目筛选 */
.project-filter-section { padding: 32px 0 16px; }
.project-filter { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.filter-btn {
    padding: 10px 22px; background: transparent; border: 1px solid var(--border);
    border-radius: 22px; color: var(--text-muted); font-size: 13px;
    cursor: pointer; transition: var(--transition); font-family: inherit;
}
.filter-btn:hover, .filter-btn.active {
    background: rgba(0, 212, 255, 0.1); border-color: rgba(0, 212, 255, 0.4); color: var(--accent);
}

/* 项目卡片 V2 */
.project-cards-section { padding: 32px 0 64px; }
.projects-grid-v2 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card-v2 {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; transition: var(--transition);
    position: relative; overflow: hidden;
}
.project-card-v2::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
    z-index: 2;
}
.project-card-v2:hover {
    border-color: rgba(0, 212, 255, 0.3); transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 40, 100, 0.35);
}
.project-card-v2:hover::after { transform: scaleX(1); }

/* 卡片效果图 */
.pcard-img {
    width: 100%; height: 180px; overflow: hidden;
    background: var(--dark2);
    border-bottom: 1px solid var(--border);
    border-radius: 14px 14px 0 0;
}
.pcard-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
}
.project-card-v2:hover .pcard-img img {
    transform: scale(1.08);
}

/* 卡片内容区 */
.pcard-body { padding: 20px 24px 24px; }
.pcard-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.pcard-cat { padding: 4px 12px; background: rgba(0, 212, 255, 0.08); border: 1px solid rgba(0, 212, 255, 0.15); border-radius: 12px; font-size: 11px; color: var(--accent); }
.pcard-year { font-size: 12px; color: var(--text-muted); }
.project-card-v2 h3 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 8px; line-height: 1.4; }
.pcard-meta { display: flex; gap: 16px; margin-bottom: 8px; flex-wrap: wrap; }
.pcard-loc { font-size: 12px; color: var(--text-muted); }
.pcard-scale { font-size: 12px; color: var(--accent); font-weight: 500; }
.pcard-body > p { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.6; }
.pcard-tech { display: flex; flex-wrap: wrap; gap: 6px; }
.pcard-tech span { padding: 3px 10px; background: rgba(0, 212, 255, 0.05); border: 1px solid rgba(0, 212, 255, 0.1); border-radius: 8px; font-size: 11px; color: var(--text-muted); }

.project-card-v2.hidden { display: none; }

/* 筛选过渡动画 */
.project-card-v2 {
    opacity: 1;
    transition: opacity 0.35s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.project-card-v2.filtering-out {
    opacity: 0;
    pointer-events: none;
}

/* 业务覆盖 */
.coverage-section { padding: 0 0 80px; }
.coverage-grid-v2 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cov-card-v2 {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 14px; padding: 28px 16px; text-align: center;
    transition: var(--transition);
}
.cov-card-v2:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateY(-4px); }
.cov-circle { width: 52px; height: 52px; margin: 0 auto 12px; background: rgba(0, 212, 255, 0.06); border: 1px solid rgba(0, 212, 255, 0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.cov-card-v2 span { font-size: 13px; color: var(--text-muted); }

/* ============================================ */
/*            联系我们 - 新版设计               */
/* ============================================ */

.contact-main { padding: 64px 0 0; }
.contact-grid-v2 { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }

/* 联系方式卡片 */
.contact-info-v2 { padding-top: 8px; }
.contact-lead { font-size: 15px; color: var(--text-muted); margin-bottom: 32px; line-height: 1.8; }
.contact-cards { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.contact-card-v2 {
    display: flex; align-items: center; gap: 18px;
    padding: 18px 20px; background: var(--card-bg);
    border: 1px solid var(--border); border-radius: 14px; transition: var(--transition);
}
.contact-card-v2:hover { border-color: rgba(0, 212, 255, 0.3); transform: translateX(4px); }
.cc-icon { width: 28px; height: 28px; flex-shrink: 0; }
.cc-label { font-size: 11px; color: var(--text-muted); letter-spacing: 1px; margin-bottom: 2px; }
.cc-value { font-size: 15px; color: #fff; font-weight: 500; }
.contact-services-v2 h4 { font-size: 13px; color: var(--text-muted); letter-spacing: 1px; margin-bottom: 12px; }
.cs-tags-v2 { display: flex; flex-wrap: wrap; gap: 8px; }
.cs-tags-v2 span { padding: 5px 14px; background: rgba(0, 212, 255, 0.05); border: 1px solid rgba(0, 212, 255, 0.12); border-radius: 16px; font-size: 12px; color: var(--text-muted); }

/* 联系表单 V2 */
.contact-form-v2 {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 20px; padding: 36px;
}
.form-header { margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.form-header h3 { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.form-header p { font-size: 13px; color: var(--text-muted); }
.form-row-v2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group-v2 { margin-bottom: 18px; }
.form-group-v2 label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 8px; }
.required { color: #ff5c5c; }
.form-group-v2 input, .form-group-v2 select, .form-group-v2 textarea {
    width: 100%; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border);
    border-radius: 10px; padding: 12px 16px; color: var(--text); font-size: 14px;
    font-family: inherit; transition: var(--transition); outline: none;
    -webkit-appearance: none;
}
.form-group-v2 select option { background: var(--dark2); }
.form-group-v2 input:focus, .form-group-v2 select:focus, .form-group-v2 textarea:focus {
    border-color: rgba(0, 212, 255, 0.5); background: rgba(0, 212, 255, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}
.form-group-v2 input::placeholder, .form-group-v2 textarea::placeholder { color: rgba(122, 156, 192, 0.45); }
.form-group-v2 textarea { resize: vertical; min-height: 100px; }
.btn-submit-v2 {
    width: 100%; padding: 14px; background: linear-gradient(135deg, var(--primary), var(--accent2));
    color: #fff; border: none; border-radius: 10px; font-size: 15px; font-weight: 500;
    cursor: pointer; transition: var(--transition); font-family: inherit; letter-spacing: 1px;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    box-shadow: 0 4px 20px rgba(0, 100, 200, 0.35);
}
.btn-submit-v2:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 100, 200, 0.55); }
.btn-submit-v2:disabled { background: linear-gradient(135deg, #0d7a4e, #0fa86a); pointer-events: none; }
.btn-submit-arrow { transition: transform 0.3s; }
.btn-submit-v2:hover .btn-submit-arrow { transform: translateX(4px); }

/* 表单状态提示 */
.form-status {
    margin-top: 14px; padding: 10px 14px; border-radius: 8px;
    font-size: 13px; text-align: center; display: none; line-height: 1.5;
}
.form-status.success {
    display: block; background: rgba(13, 122, 78, 0.15);
    border: 1px solid rgba(13, 122, 78, 0.3); color: #4ade80;
}
.form-status.error {
    display: block; background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.25); color: #f87171;
}
.form-status.loading {
    display: block; background: rgba(0, 212, 255, 0.06);
    border: 1px solid rgba(0, 212, 255, 0.15); color: var(--accent);
}
.form-status.loading::before {
    content: ''; display: inline-block; width: 14px; height: 14px;
    border: 2px solid var(--accent); border-top-color: transparent;
    border-radius: 50%; vertical-align: middle; margin-right: 8px;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 地图 */
.contact-map { padding: 64px 0 0; }
.map-area {
    display: block; text-decoration: none; color: inherit;
    border-radius: 20px; overflow: hidden; position: relative;
    cursor: pointer; transition: var(--transition);
}
.map-area:hover { transform: translateY(-2px); }
.map-area:hover .map-nav-hint {
    background: linear-gradient(135deg, var(--primary), var(--accent2));
    box-shadow: 0 4px 20px rgba(0, 100, 200, 0.5);
}
.map-area:hover .hint-arrow { transform: translateX(4px); }

/* 可点击地图容器 */
.map-clickable { position: relative; }

.map-bg {
    height: 320px; background: var(--card-bg);
    border: 1px solid var(--border); border-radius: 20px 20px 0 0;
    position: relative; overflow: hidden; display: flex;
    align-items: center; justify-content: center;
    transition: border-color 0.3s;
}
.map-area:hover .map-bg { border-color: rgba(0, 212, 255, 0.3); }

.map-grid-bg {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 36px 36px;
}
.map-pin-area { position: relative; text-align: center; }
.map-pin-anim { width: 60px; height: 60px; margin: 0 auto 16px; animation: mapPulse 2s ease-in-out infinite; }
@keyframes mapPulse { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.map-label h4 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.map-label p { font-size: 13px; color: var(--text-muted); }
.map-city { font-size: 14px; color: var(--accent); margin-top: 6px; letter-spacing: 2px; }

/* 地图导航提示条 */
.map-nav-hint {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 16px 24px;
    background: rgba(0, 100, 200, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-top: none; border-radius: 0 0 20px 20px;
    color: var(--accent); font-size: 14px; font-weight: 500;
    letter-spacing: 1px; transition: var(--transition);
}
.hint-arrow { transition: transform 0.3s ease; }

/* FAQ */
.contact-faq { padding: 72px 0 80px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: 14px; padding: 24px; transition: var(--transition); }
.faq-item:hover { border-color: rgba(0, 212, 255, 0.25); }
.faq-item h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 10px; position: relative; padding-left: 20px; }
.faq-item h4::before { content: 'Q'; position: absolute; left: 0; top: 0; color: var(--accent); font-size: 14px; font-weight: 700; }
.faq-item p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ============================================ */
/*            页脚                               */
/* ============================================ */
.footer { background: var(--dark2); border-top: 1px solid var(--border); padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-logo-img { height: 36px; width: auto; object-fit: contain; }
.footer-brand p { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.footer-slogan { font-size: 13px; color: var(--accent) !important; letter-spacing: 2px; }
.footer-links h4, .footer-services h4, .footer-contact h4 { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 1px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 13px; color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-services { display: flex; flex-direction: column; gap: 8px; }
.footer-services span { font-size: 13px; color: var(--text-muted); }
.footer-contact p { font-size: 13px; color: var(--text-muted); margin-bottom: 8px; }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-bottom p { font-size: 12px; color: rgba(122, 156, 192, 0.5); }

/* ============ 动画 ============ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .service-cards { grid-template-columns: repeat(2, 1fr); }
    .digital-grid { grid-template-columns: repeat(2, 1fr); }
    .anim-grid { grid-template-columns: repeat(2, 1fr); }
    .cost-grid { grid-template-columns: repeat(3, 1fr); }
    .projects-grid-v2 { grid-template-columns: repeat(2, 1fr); }
    .pcard-body { padding: 16px 18px 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .highlight-grid { grid-template-columns: 1fr; }
    .highlight-visual { display: none; }
    .coverage-grid-v2 { grid-template-columns: repeat(4, 1fr); }
    .about-intro-grid { grid-template-columns: 1fr; }
    .about-intro-stats { display: grid; grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .lifecycle-stages { flex-wrap: wrap; }
    .stage-arrow { display: none; }
    .stage-card { min-width: calc(50% - 8px); }
    .experts-grid-v2 { grid-template-columns: 1fr; }
    .contact-grid-v2 { grid-template-columns: 1fr; }
    .invest-list { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    :root { --nav-h: 60px; }
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .nav-links.open {
        display: flex; flex-direction: column; position: fixed;
        top: var(--nav-h); left: 0; right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px); padding: 16px;
        border-bottom: 1px solid var(--border);
    }
    .hero-title { font-size: clamp(28px, 8vw, 48px); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .service-cards { grid-template-columns: 1fr 1fr; }
    .digital-grid { grid-template-columns: repeat(2, 1fr); }
    .anim-grid { grid-template-columns: repeat(2, 1fr); }
    .cost-grid { grid-template-columns: repeat(2, 1fr); }
    .about-intro-stats { grid-template-columns: 1fr; }
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid-v2 { grid-template-columns: 1fr; }
    .pcard-img { height: 200px; }
    .pcard-body { padding: 14px 16px 18px; }
    .values-grid-v2 { grid-template-columns: repeat(2, 1fr); }
    .contact-grid-v2 { grid-template-columns: 1fr; }
    .form-row-v2 { grid-template-columns: 1fr; }
    .org-branches { grid-template-columns: 1fr; gap: 32px; }
    .process-flow { flex-direction: column; align-items: center; gap: 16px; }
    .process-connector { width: 2px; height: 40px; flex: 0 0 auto; margin: 0; }
    .process-connector::after { content: ''; }
    .coverage-grid-v2 { grid-template-columns: repeat(2, 1fr); }
    .pd-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .service-cards { grid-template-columns: 1fr; }
    .values-grid-v2 { grid-template-columns: 1fr; }
    .digital-grid { grid-template-columns: 1fr; }
    .anim-grid { grid-template-columns: 1fr; }
    .cost-grid { grid-template-columns: 1fr; }
    .coverage-grid-v2 { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .projects-grid-v2 { grid-template-columns: 1fr; }
    .pcard-img { height: 200px; }
    .domain-grid { grid-template-columns: 1fr; }
    .pd-grid { grid-template-columns: repeat(2, 1fr); }
}