/* ============================================================
   关于我们 - 独立内页
   设计风格：Apple × 泰康之家 × 华为
   ============================================================ */

:root {
    --deep-blue: #071D49;
    --tech-blue: #0D6EFD;
    --tech-blue-light: #3B8BFF;
    --galaxy-purple: #4A3AFF;
    --gold: #D4AF37;
    --gold-light: #F0D060;
    --white: #FFFFFF;
    --bg-dark: #020C24;
    --bg-section: #060E2B;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255,255,255,0.7);
    --text-muted: rgba(255,255,255,0.45);
    --border-subtle: rgba(255,255,255,0.06);
    --border-medium: rgba(255,255,255,0.12);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(13,110,253,0.12);
    --radius-sm: 8px; --radius-md: 12px; --radius-lg: 20px; --radius-xl: 28px;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans", -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6; overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }

.container { max-width: 1440px; margin: 0 auto; padding: 0 60px; }

.section-label {
    display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 4px;
    color: var(--tech-blue); margin-bottom: 16px; padding: 4px 12px;
    border: 1px solid rgba(13,110,253,0.2); border-radius: 4px;
}

.section-header-center { text-align: center; margin-bottom: 72px; }

.section-main-title {
    font-size: 44px; font-weight: 700; color: var(--white); margin-bottom: 16px; letter-spacing: 1px;
}

/* ========== 顶部导航栏 ========== */
.top-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(7,29,73,0.78); backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: all var(--transition);
}
.top-nav.scrolled { background: rgba(7,29,73,0.94); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.top-nav-inner {
    max-width: 1920px; margin: 0 auto; display: flex; align-items: center;
    justify-content: space-between; padding: 0 48px; height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.logo-name { font-size: 20px; font-weight: 700; color: var(--white); letter-spacing: 1px; }
.logo-gold { color: var(--gold); }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
    padding: 8px 14px; font-size: 14px; color: var(--text-secondary);
    border-radius: var(--radius-sm); transition: all var(--transition); white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--white); background: rgba(255,255,255,0.06); }
.nav-menu a.active { color: var(--tech-blue-light); }
.nav-back {
    display: flex; align-items: center; gap: 6px; padding: 8px 16px; font-size: 13px;
    color: var(--text-secondary); border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px; transition: all var(--transition); white-space: nowrap;
}
.nav-back:hover { color: var(--white); border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.06); }

/* ========== 左侧悬浮导航 ========== */
.side-nav {
    position: fixed; left: 20px; top: 50%; transform: translateY(-50%); z-index: 900;
    display: flex; flex-direction: column; gap: 4px;
    background: rgba(7,29,73,0.5); backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 8px;
}
.side-link {
    width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
    font-size: 12px; color: var(--text-muted); border-radius: 8px;
    transition: all var(--transition); writing-mode: vertical-rl; letter-spacing: 2px;
}
.side-link:hover, .side-link.active { color: var(--white); background: rgba(13,110,253,0.2); }

/* ========== 模块1：Banner ========== */
.banner {
    position: relative; width: 100%; height: 100vh; min-height: 700px;
    display: flex; align-items: center; justify-content: center; overflow: hidden;
    background: radial-gradient(ellipse at center, #0A1E4A 0%, #020C24 70%);
}
#starCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; }
.banner-hud { position: absolute; inset: 40px; z-index: 2; pointer-events: none; }
.hud-line { position: absolute; width: 80px; height: 80px; border-color: rgba(13,110,253,0.15); border-style: solid; }
.hud-tl { top: 0; left: 0; border-width: 1px 0 0 1px; }
.hud-tr { top: 0; right: 0; border-width: 1px 1px 0 0; }
.hud-bl { bottom: 0; left: 0; border-width: 0 0 1px 1px; }
.hud-br { bottom: 0; right: 0; border-width: 0 1px 1px 0; }
.banner-content { position: relative; z-index: 10; text-align: center; }
.banner-tag {
    display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 6px;
    color: var(--tech-blue); margin-bottom: 28px; padding: 6px 18px;
    border: 1px solid rgba(13,110,253,0.25); border-radius: 4px;
}
.banner-title {
    font-size: 68px; font-weight: 800; line-height: 1.2; margin-bottom: 24px; letter-spacing: 2px;
    background: linear-gradient(135deg, #FFFFFF 0%, #A8D0FF 50%, #FFFFFF 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.banner-subtitle { font-size: 22px; color: var(--text-secondary); margin-bottom: 8px; }
.banner-subtitle-secondary { font-size: 18px; color: var(--text-muted); }
.banner-bg-caption { position: absolute; bottom: 80px; left: 50%; transform: translateX(-50%); z-index: 5; font-size: 12px; color: var(--text-muted); letter-spacing: 2px; }
.banner-scroll { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 10; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.scroll-indicator { width: 20px; height: 32px; border: 2px solid rgba(255,255,255,0.2); border-radius: 10px; position: relative; }
.scroll-dot { width: 3px; height: 6px; background: var(--tech-blue); border-radius: 2px; position: absolute; top: 6px; left: 50%; transform: translateX(-50%); animation: scrollDot 2s ease-in-out infinite; }
@keyframes scrollDot { 0%,100%{top:6px;opacity:1} 50%{top:18px;opacity:.2} }
.banner-scroll span { font-size: 11px; color: var(--text-muted); letter-spacing: 3px; }

/* ========== 模块2：品牌初心 ========== */
.intro { padding: 120px 0; background: var(--bg-dark); }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.intro-title { font-size: 42px; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.intro-lead { font-size: 18px; color: var(--text-secondary); margin-bottom: 32px; }
.intro-points { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.intro-point {
    display: flex; align-items: center; gap: 14px; padding: 14px 18px;
    background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-sm); font-size: 16px; color: var(--text-primary);
    transition: all var(--transition);
}
.intro-point:hover { border-color: rgba(13,110,253,0.2); background: rgba(13,110,253,0.04); }
.point-icon { color: var(--tech-blue-light); }
.intro-conclusion { font-size: 18px; font-weight: 600; color: var(--gold); }
.intro-image { position: relative; }
.intro-img-wrap { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.intro-img { width: 100%; aspect-ratio: 4/5; background-size: cover; background-position: center; transition: transform 0.8s ease; }
.intro-img-wrap:hover .intro-img { transform: scale(1.04); }
.img-gradient { position: absolute; inset: 0; background: linear-gradient(to top, rgba(2,12,36,0.4), transparent 50%); }
.img-glow { position: absolute; inset: -2px; border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(13,110,253,0.2), transparent, rgba(212,175,55,0.1)); z-index: -1; filter: blur(20px); }
.img-caption { text-align: center; font-size: 12px; color: var(--text-muted); margin-top: 14px; letter-spacing: 1px; }

/* ========== 模块3：品牌发展历程 ========== */
.history { padding: 120px 0; background: var(--bg-section); position: relative; }
.history::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 500px; height: 1px; background: linear-gradient(90deg, transparent, rgba(13,110,253,0.2), transparent); }
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline-line { position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: linear-gradient(to bottom, rgba(13,110,253,0.3), rgba(13,110,253,0.1), rgba(13,110,253,0.3)); transform: translateX(-50%); }
.timeline-item { position: relative; margin-bottom: 60px; width: 50%; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item.left { padding-right: 50px; text-align: right; }
.timeline-item.right { margin-left: 50%; padding-left: 50px; text-align: left; }
.timeline-dot {
    position: absolute; top: 20px; width: 16px; height: 16px; background: var(--tech-blue);
    border-radius: 50%; box-shadow: 0 0 20px rgba(13,110,253,0.5); z-index: 2;
    border: 3px solid var(--bg-section);
}
.timeline-item.left .timeline-dot { right: -8px; }
.timeline-item.right .timeline-dot { left: -8px; }
.timeline-card {
    background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 28px; transition: all var(--transition);
}
.timeline-card:hover { border-color: rgba(13,110,253,0.2); transform: translateY(-4px); box-shadow: var(--shadow-glow), 0 12px 40px rgba(0,0,0,0.4); }
.timeline-year { font-size: 14px; font-weight: 700; color: var(--tech-blue); margin-bottom: 8px; letter-spacing: 1px; }
.timeline-card h3 { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.timeline-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }
.timeline-img { width: 100%; height: 80px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }

/* ========== 模块4：使命愿景价值观 ========== */
.mission { padding: 120px 0; background: var(--bg-dark); }
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mission-card {
    background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 40px 28px; text-align: center;
    transition: all var(--transition);
}
.mission-card:hover { transform: translateY(-6px); border-color: rgba(13,110,253,0.2); box-shadow: var(--shadow-glow), 0 16px 48px rgba(0,0,0,0.5); }
.mission-icon { font-size: 44px; margin-bottom: 16px; }
.mission-card h3 { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.mission-card > p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 20px; }
.mission-values { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 20px; }
.mission-values span { padding: 6px 14px; font-size: 13px; color: var(--text-secondary); background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 20px; }
.mission-img { width: 100%; height: 100px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }

/* ========== 模块5：四大核心团队 ========== */
.team { padding: 120px 0; background: var(--bg-section); position: relative; }
.team::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 500px; height: 1px; background: linear-gradient(90deg, transparent, rgba(13,110,253,0.2), transparent); }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card {
    background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 36px 24px; text-align: center;
    transition: all var(--transition);
}
.team-card:hover { transform: translateY(-6px); border-color: rgba(13,110,253,0.2); box-shadow: var(--shadow-glow), 0 16px 48px rgba(0,0,0,0.5); }
.team-icon-wrap { width: 64px; height: 64px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.team-icon-wrap.medical { background: rgba(59,130,246,0.12); color: #3B82F6; }
.team-icon-wrap.route { background: rgba(16,185,129,0.12); color: #10B981; }
.team-icon-wrap.heritage { background: rgba(212,175,55,0.12); color: #D4AF37; }
.team-icon-wrap.butler { background: rgba(139,92,246,0.12); color: #8B5CF6; }
.team-card h3 { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.team-card ul { list-style: none; margin-bottom: 20px; }
.team-card ul li { font-size: 13px; color: var(--text-secondary); padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.team-card ul li:last-child { border-bottom: none; }
.team-img { width: 100%; height: 90px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }

/* ========== 模块6：企业资质与荣誉 ========== */
.honor { padding: 120px 0; background: var(--bg-dark); }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 24px; }
.honor-item {
    height: 140px; display: flex; flex-direction: column; align-items: center;
    justify-content: center; gap: 14px; background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
    transition: all var(--transition); cursor: pointer;
}
.honor-item:hover { border-color: rgba(13,110,253,0.25); background: rgba(13,110,253,0.04); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.honor-icon { color: var(--tech-blue-light); opacity: 0.6; transition: opacity var(--transition); }
.honor-item:hover .honor-icon { opacity: 1; }
.honor-item span { font-size: 14px; color: var(--text-secondary); font-weight: 500; }
.honor-hint { text-align: center; font-size: 13px; color: var(--text-muted); letter-spacing: 1px; }

/* ========== 模块7：社会责任 ========== */
.social { padding: 120px 0; background: var(--bg-section); position: relative; }
.social::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 500px; height: 1px; background: linear-gradient(90deg, transparent, rgba(13,110,253,0.2), transparent); }
.social-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.social-img { width: 100%; aspect-ratio: 4/3; border-radius: var(--radius-xl); overflow: hidden; }
.social-img-inner { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: var(--text-muted); font-size: 14px; letter-spacing: 1px; }
.social-text h2 { font-size: 36px; font-weight: 700; color: var(--white); margin-bottom: 32px; }
.social-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }
.social-item { display: flex; align-items: center; gap: 12px; font-size: 16px; color: var(--text-secondary); padding: 12px 16px; background: rgba(255,255,255,0.02); border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.04); }
.social-item svg { color: var(--tech-blue-light); flex-shrink: 0; }
.social-conclusion { font-size: 18px; font-weight: 600; color: var(--gold); }

/* ========== 模块8：基地实景 ========== */
.base { padding: 120px 0; background: var(--bg-dark); }
.base-scroll-wrap { overflow: hidden; position: relative; }
.base-scroll-wrap::before, .base-scroll-wrap::after { content: ''; position: absolute; top: 0; bottom: 0; width: 80px; z-index: 2; pointer-events: none; }
.base-scroll-wrap::before { left: 0; background: linear-gradient(to right, var(--bg-dark), transparent); }
.base-scroll-wrap::after { right: 0; background: linear-gradient(to left, var(--bg-dark), transparent); }
.base-scroll { display: flex; gap: 24px; animation: baseScroll 25s linear infinite; }
.base-card { flex-shrink: 0; }
.base-img { width: 260px; height: 180px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--text-muted); letter-spacing: 1px; border: 1px solid rgba(255,255,255,0.05); transition: all var(--transition); cursor: pointer; }
.base-img:hover { border-color: rgba(13,110,253,0.2); transform: scale(1.03); }
@keyframes baseScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ========== 模块9：CTA ========== */
.cta { position: relative; padding: 140px 0; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background-size: cover; background-position: center; background-attachment: fixed; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(2,12,36,0.85), rgba(7,29,73,0.9), rgba(2,12,36,0.95)); }
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 800px; margin: 0 auto; padding: 0 24px; }
.cta-title { font-size: 38px; font-weight: 700; color: var(--white); margin-bottom: 40px; line-height: 1.4; }
.cta-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.cta-btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 36px; font-size: 16px; font-weight: 600; border-radius: 30px; transition: all var(--transition); }
.cta-primary { background: linear-gradient(135deg, var(--tech-blue), #2563EB); color: var(--white); box-shadow: 0 8px 28px rgba(13,110,253,0.35); }
.cta-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(13,110,253,0.5); }
.cta-gold { border: 2px solid var(--gold); color: var(--gold); }
.cta-gold:hover { transform: translateY(-3px); background: rgba(212,175,55,0.1); box-shadow: 0 8px 28px rgba(212,175,55,0.25); }
.cta-info { display: flex; align-items: center; justify-content: center; gap: 48px; flex-wrap: wrap; }
.cta-tel { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 600; color: var(--text-secondary); }
.cta-qr { text-align: center; }
.cta-qr span { display: block; font-size: 12px; color: var(--text-muted); margin-top: 8px; }

/* ========== Footer ========== */
.footer { background: #020816; padding: 48px 0 32px; text-align: center; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-nav, .footer-cert, .footer-contact, .footer-qr, .footer-legal { margin-bottom: 10px; font-size: 13px; color: var(--text-muted); }
.footer a { color: var(--text-muted); transition: color var(--transition); }
.footer a:hover { color: var(--tech-blue-light); }
.sep { margin: 0 10px; color: rgba(255,255,255,0.08); }
.footer-copy { font-size: 12px; color: var(--text-muted); margin-top: 20px; opacity: 0.6; }

/* ========== 响应式 ========== */
@media (max-width: 1280px) {
    .container { padding: 0 40px; }
    .banner-title { font-size: 48px; }
    .section-main-title { font-size: 34px; }
    .intro-title { font-size: 32px; }
    .intro-grid { grid-template-columns: 1fr; gap: 48px; }
    .timeline-item { width: 100%; padding-left: 40px !important; padding-right: 0 !important; text-align: left !important; margin-left: 0 !important; }
    .timeline-line { left: 16px; }
    .timeline-item .timeline-dot { left: 8px !important; right: auto !important; }
    .mission-grid { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: repeat(2, 1fr); }
    .social-grid { grid-template-columns: 1fr; }
    .side-nav { display: none; }
}
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .nav-menu { display: none; }
    .banner-title { font-size: 30px; }
    .section-main-title { font-size: 26px; }
    .team-grid { grid-template-columns: 1fr; }
    .cta-title { font-size: 26px; }
}