/* ===== CSS Variables ===== */
/* Theme variables now handled by css/themes.css */

/* ===== Navigation ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:999;background:var(--nav-bg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border);height:var(--nav-h)}
.nav-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:var(--nav-h)}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);letter-spacing:0.5px}
.nav-logo:hover{color:var(--text2)}
.nav-logo-img{height:38px;width:auto;display:block}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.15}
.nav-logo-text .zh{font-size:15px;font-weight:700;color:var(--text)}
.nav-logo-text .en{font-size:11px;font-weight:400;color:var(--text3);font-family:'Helvetica Neue',Arial,sans-serif}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{font-size:13px;font-weight:500;color:var(--text2);padding:6px 14px;border-radius:6px;transition:.3s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{background:rgba(30,109,242,0.12);color:var(--blue2)}
.nav-links .nav-cta{background:var(--blue);color:#fff!important;padding:6px 18px;border-radius:6px;font-weight:600}
.nav-links .nav-cta:hover{background:#1a5cd6;box-shadow:0 4px 16px rgba(30,109,242,0.3)}
.hamburger{display:none;flex-direction:column;gap:4px;cursor:pointer;background:none;border:none;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ===== Page Header ===== */
.page-hdr{padding:120px 24px 60px;background:linear-gradient(180deg,var(--bg2),var(--bg1));text-align:center;position:relative;overflow:hidden}
.page-hdr::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 30%,rgba(30,109,242,0.06),transparent 60%);pointer-events:none}
.page-hdr h1{font-size:clamp(28px,3.5vw,42px);font-weight:700;color:#fff;margin-bottom:8px;position:relative;z-index:1}
.page-hdr p{color:var(--text2);font-size:14px;max-width:600px;margin:0 auto;position:relative;z-index:1}

/* ===== Common Sections ===== */
section{padding:80px 24px}
.section-inner{max-width:1200px;margin:0 auto}
.section-hdr{margin-bottom:44px}
.section-label{display:inline-block;font-size:11px;font-weight:600;letter-spacing:3px;color:var(--blue3);text-transform:uppercase;margin-bottom:8px}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;color:#fff;margin-bottom:12px}
.section-desc{color:var(--text2);font-size:15px;max-width:640px}

/* ===== Buttons ===== */
.btn-p{display:inline-flex;align-items:center;gap:6px;padding:12px 32px;border-radius:8px;background:var(--blue);color:#fff;font-weight:600;font-size:14px;border:none;cursor:pointer;transition:.25s}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(30,109,242,0.35);color:#fff}
.btn-o{display:inline-flex;align-items:center;gap:6px;padding:12px 32px;border-radius:8px;background:transparent;color:var(--text2);font-weight:500;font-size:14px;border:1px solid var(--border);cursor:pointer;transition:.25s}
.btn-o:hover{border-color:var(--blue2);color:var(--text);transform:translateY(-2px)}

/* ===== Footer ===== */
footer{background:var(--bg1);border-top:1px solid var(--border);padding:48px 24px 20px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-g{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:32px;margin-bottom:28px}
.footer-c h4{color:#fff;font-size:14px;margin-bottom:14px}
.footer-c p,.footer-c a{color:var(--text3);font-size:12px;display:block;margin-bottom:5px}
.footer-c a:hover{color:var(--blue2)}
.footer-b{border-top:1px solid var(--border);padding-top:16px;text-align:center;color:var(--text3);font-size:12px}
.footer-b .ver{color:var(--text3);margin-left:12px;padding:2px 8px;border:1px solid var(--border);border-radius:4px;font-size:10px;font-family:'Helvetica Neue',Arial,sans-serif}

/* ===== Stats Grid ===== */
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-c{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px 16px;text-align:center;transition:.3s}
.stat-c:hover{border-color:rgba(30,109,242,0.2);transform:translateY(-3px)}
.stat-c .num{font-size:28px;font-weight:800;background:linear-gradient(135deg,var(--blue2),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-c .lbl{font-size:12px;color:var(--text3);margin-top:4px}

/* ===== Fleet ===== */
.fleet-filter{display:flex;gap:4px;margin-bottom:28px;background:rgba(255,255,255,0.02);border-radius:8px;padding:4px;width:fit-content;flex-wrap:wrap}
.fleet-filter button{padding:8px 18px;border-radius:6px;border:none;background:transparent;color:var(--text3);font-size:13px;font-weight:500;cursor:pointer;transition:.3s;font-family:inherit}
.fleet-filter button.active{background:rgba(30,109,242,0.15);color:var(--blue2)}
.fleet-filter button:hover{color:#fff}
.fleet-g{display:none;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.fleet-g.active{display:grid}
.fleet-item{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:10px;padding:16px 12px;text-align:center;transition:.3s}
.fleet-item:hover{border-color:rgba(30,109,242,0.25);transform:translateY(-2px)}
.fleet-item .fi-icon{font-size:22px;display:block;margin-bottom:6px;font-weight:700;color:var(--blue3);font-family:'Helvetica Neue',Arial,sans-serif;letter-spacing:-0.5px}
.fleet-item .fi-icon.pax{color:var(--blue3)}
.fleet-item .fi-icon.cargo{color:#c4b5fd}
.fleet-item .fi-type{font-size:15px;font-weight:700;color:#fff}
.fleet-item .fi-name{font-size:11px;color:var(--text3);margin-top:1px}
.fleet-item .fi-role{display:inline-block;margin-top:6px;font-size:9px;padding:2px 8px;border-radius:100px;font-weight:600}
.fleet-item .fi-role.pax{background:rgba(30,109,242,0.1);color:var(--blue3)}
.fleet-item .fi-role.cargo{background:rgba(139,92,246,0.1);color:#c4b5fd}

/* ===== Brand Cards ===== */
.brands-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.brand-c{border-radius:16px;padding:36px 32px;border:1px solid var(--border);transition:.4s}
.brand-c.pax{background:linear-gradient(145deg,rgba(30,109,242,0.06),rgba(15,29,58,0.2))}
.brand-c.cargo{background:linear-gradient(145deg,rgba(139,92,246,0.06),rgba(15,29,58,0.2))}
.brand-c:hover{transform:translateY(-4px);border-color:rgba(255,255,255,0.1)}
.brand-c .ico{font-size:32px;margin-bottom:10px}
.brand-c h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:2px}
.brand-c .code{font-size:12px;color:var(--text3);margin-bottom:12px}
.brand-c .code strong{color:var(--gold)}
.brand-c p{font-size:13px;color:var(--text2);margin-bottom:14px;line-height:1.8}
.brand-c .tag{display:inline-block;padding:3px 10px;border-radius:100px;font-size:10px;font-weight:600}
.brand-c.pax .tag{background:rgba(30,109,242,0.12);color:var(--blue3)}
.brand-c.cargo .tag{background:rgba(139,92,246,0.12);color:#c4b5fd}

/* ===== Team ===== */
.team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.team-c{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px 16px;text-align:center;transition:.3s}
.team-c:hover{border-color:rgba(30,109,242,0.2);transform:translateY(-3px)}
.team-c .av{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#818cf8);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:20px;font-weight:700;color:#fff;font-family:'Helvetica Neue',Arial,sans-serif}
.team-c .name{font-size:15px;font-weight:600;color:#fff}
.team-c .cid{font-size:11px;color:var(--text3);margin:2px 0 4px;font-family:'Helvetica Neue',Arial,sans-serif}
.team-c .role-tag{font-size:11px;color:var(--blue3);background:rgba(30,109,242,0.08);padding:2px 10px;border-radius:100px;display:inline-block}

/* ===== Events ===== */
.events-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.event-c{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px;transition:.3s}
.event-c:hover{border-color:rgba(30,109,242,0.2);transform:translateY(-3px)}
.event-c .date{font-size:11px;color:var(--text3);margin-bottom:6px}
.event-c .date strong{color:var(--gold)}
.event-c h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:6px}
.event-c p{font-size:13px;color:var(--text2);line-height:1.7}

/* ===== Partners ===== */
.partner-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.partner-item{padding:14px 24px;background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:8px;font-size:13px;color:var(--text2);transition:.3s;text-align:center}
.partner-item:hover{border-color:rgba(30,109,242,0.2);color:var(--blue3)}
.partner-item .p-icon{font-size:20px;display:block;margin-bottom:4px}

/* ===== Quick Links ===== */
.ql-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.ql-item{display:flex;align-items:center;gap:12px;padding:16px 20px;background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:10px;transition:.3s;color:var(--text2);font-size:13px}
.ql-item:hover{border-color:rgba(30,109,242,0.25);color:#fff;transform:translateY(-2px)}
.ql-item .qli{font-size:20px}

/* ===== Join CTA ===== */
.join-box{text-align:center;background:linear-gradient(145deg,rgba(30,109,242,0.04),rgba(15,29,58,0.2));border:1px solid rgba(30,109,242,0.1);border-radius:20px;padding:56px 40px}
.join-box h2{font-size:clamp(24px,3vw,36px);color:#fff;margin-bottom:8px}
.join-box p{color:var(--text2);max-width:480px;margin:0 auto 28px;font-size:14px}
.join-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Hub ===== */
.hub-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hub-info .code-big{font-size:44px;font-weight:800;background:linear-gradient(135deg,var(--blue2),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.hub-info h3{font-size:24px;color:#fff;margin:6px 0 10px}
.hub-info p{color:var(--text2);font-size:14px}
.hub-map{aspect-ratio:16/9;border-radius:12px;background:rgba(255,255,255,0.02);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text3);font-size:13px;position:relative;overflow:hidden}
.hub-map .dot{position:absolute;width:12px;height:12px;background:var(--blue);border-radius:50%;box-shadow:0 0 24px rgba(30,109,242,0.5);top:62%;left:72%;animation:pulse-d 2s infinite}
@keyframes pulse-d{0%,100%{box-shadow:0 0 20px rgba(30,109,242,0.5)}50%{box-shadow:0 0 40px rgba(30,109,242,0.8)}}

/* ===== ABOUT PAGE ===== */
.about-wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:start}
.about-text p{margin-bottom:14px;color:#b8c5d4;font-size:14px;line-height:1.9}
.about-text .highlight{color:var(--blue2);font-weight:600}

/* ===== Contact Page ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contact-card{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:28px 24px;transition:.3s}
.contact-card:hover{border-color:rgba(30,109,242,0.2)}
.contact-card .cci{font-size:28px;margin-bottom:8px}
.contact-card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:4px}
.contact-card p{font-size:13px;color:var(--text3)}

/* ===== Join Page ===== */
.benefits-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.benefit-c{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:14px;padding:28px 24px;transition:.3s}
.benefit-c:hover{border-color:rgba(30,109,242,0.2);transform:translateY(-3px)}
.benefit-c .bci{font-size:28px;margin-bottom:8px}
.benefit-c h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:6px}
.benefit-c p{font-size:13px;color:var(--text2);line-height:1.7}

/* ===== News Page ===== */
.news-list{max-width:800px;margin:0 auto}
.news-item{padding:28px 0;border-bottom:1px solid var(--border)}
.news-item:last-child{border-bottom:none}
.news-item .date{font-size:11px;color:var(--text3);margin-bottom:4px}
.news-item h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:6px}
.news-item p{font-size:13px;color:var(--text2);line-height:1.7}
.news-item a{color:var(--blue2);font-size:13px;font-weight:500;display:inline-block;margin-top:8px}

/* ===== Staff Page ===== */
.dept-section{margin-bottom:40px}
.dept-section h3{font-size:18px;font-weight:600;color:var(--blue3);margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border)}

/* ===== Bases Page ===== */
.bases-filter{display:flex;gap:4px;margin-bottom:28px;background:rgba(255,255,255,0.02);border-radius:8px;padding:4px;width:fit-content;flex-wrap:wrap}
.bases-filter button{padding:8px 18px;border-radius:6px;border:none;background:transparent;color:var(--text3);font-size:13px;font-weight:500;cursor:pointer;transition:.3s;font-family:inherit}
.bases-filter button.active{background:rgba(30,109,242,0.15);color:var(--blue2)}
.bases-filter button:hover{color:#fff}
.bases-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.base-c{display:block;background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:20px 18px;transition:.3s;color:var(--text)}
.base-c:hover{border-color:rgba(30,109,242,0.3);transform:translateY(-3px);color:var(--text)}
.base-c .b-code{display:flex;align-items:baseline;gap:8px;margin-bottom:8px}
.base-c .b-icao{font-size:24px;font-weight:800;color:var(--blue2);letter-spacing:0.5px;font-family:'Helvetica Neue',Arial,sans-serif}
.base-c .b-iata{font-size:13px;color:var(--text3);font-family:'Helvetica Neue',Arial,sans-serif}
.base-c .b-name{font-size:15px;font-weight:600;color:#fff;margin-bottom:2px}
.base-c .b-loc{font-size:11px;color:var(--text3);margin-bottom:10px}
.base-c .b-role{display:inline-block;font-size:10px;font-weight:600;padding:3px 10px;border-radius:100px;letter-spacing:0.5px}
.base-c .b-role.hub{background:rgba(245,158,11,0.12);color:#fbbf24}
.base-c .b-role.secondary{background:rgba(30,109,242,0.12);color:var(--blue3)}
.base-c .b-role.waypoint{background:rgba(255,255,255,0.04);color:var(--text3)}

/* ===== Bases Detail Page ===== */
.base-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--blue2);margin-bottom:16px}
.base-back:hover{color:var(--blue3)}
.base-photo{margin-bottom:24px;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:rgba(255,255,255,0.02)}
.base-photo img{display:block;width:100%;height:auto;max-height:360px;object-fit:cover}
.base-hdr{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.base-hdr .codes{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.base-hdr .icao-big{font-size:48px;font-weight:900;background:linear-gradient(135deg,var(--blue2),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:0.5px;font-family:'Helvetica Neue',Arial,sans-serif;line-height:1}
.base-hdr .iata-big{font-size:18px;color:var(--text3);font-family:'Helvetica Neue',Arial,sans-serif}
.base-hdr h1{font-size:24px;color:#fff;margin-bottom:4px}
.base-hdr .en{font-size:13px;color:var(--text3);margin-bottom:10px}
.base-hdr .meta{display:flex;gap:8px;flex-wrap:wrap}
.base-hdr .meta .pill{display:inline-block;font-size:11px;padding:3px 10px;border-radius:100px;background:rgba(255,255,255,0.04);color:var(--text2)}
.base-hdr .meta .pill.role-hub{background:rgba(245,158,11,0.12);color:#fbbf24}
.base-hdr .meta .pill.role-secondary{background:rgba(30,109,242,0.12);color:var(--blue3)}
.base-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px}
.base-block h3{font-size:14px;font-weight:600;color:var(--blue3);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px}
.base-desc{color:var(--text2);font-size:14px;line-height:1.85;margin-bottom:28px;white-space:pre-line}
.base-table{width:100%;border-collapse:collapse;background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.base-table th,.base-table td{padding:10px 14px;text-align:left;font-size:13px;border-bottom:1px solid var(--border)}
.base-table thead th{background:rgba(255,255,255,0.03);color:var(--text3);font-size:11px;text-transform:uppercase;letter-spacing:1px;font-weight:600}
.base-table tr:last-child td{border-bottom:none}
.base-table td{color:var(--text2)}
.base-terminals{display:flex;flex-direction:column;gap:10px}
.base-term{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.base-term strong{font-size:14px;color:#fff;display:block;margin-bottom:2px}
.base-term span{font-size:12px;color:var(--text3)}
@media(max-width:900px){.base-grid{grid-template-columns:1fr}}

/* ===== Responsive ===== */
@media(max-width:900px){
  .about-wrap,.brands-grid,.hub-wrap,.events-grid,.contact-grid{grid-template-columns:1fr}
  .footer-g{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--bg1);backdrop-filter:blur(20px);padding:12px 24px 16px;gap:2px;border-bottom:1px solid var(--border);border-radius:0 0 12px 12px}
  .nav-links.open a{padding:12px 14px;border-radius:8px}
  .page-hdr{padding:100px 24px 44px}
  .nav-cards{grid-template-columns:repeat(3,1fr)}
}

@media(max-width:600px){
  section{padding:48px 16px}
  .section-inner{padding:0}
  section .stats-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .fleet-g{grid-template-columns:repeat(2,1fr);gap:8px}
  .fleet-item{padding:14px 8px}
  .fleet-item .fi-name{font-size:10px}
  .fleet-filter{width:100%;overflow-x:auto;padding-bottom:2px}
  .fleet-filter button{padding:6px 10px;font-size:11px}
  .ql-grid{grid-template-columns:1fr 1fr}
  .benefits-grid{grid-template-columns:1fr}
  .footer-g{grid-template-columns:1fr}
  .hero-content{padding:16px 12px}
  .hero-content h1{font-size:clamp(28px,10vw,48px)}
  .hero-logo img{height:56px}
  .hero-codes{gap:8px}
  .hero-codes span{font-size:11px;padding:4px 10px}
  .nav-cards{grid-template-columns:repeat(2,1fr);gap:8px}
  .nav-card{padding:20px 12px}
  .nav-card .nc-icon{font-size:24px}
  .nav-card .nc-title{font-size:13px}
  .page-hdr{padding:88px 16px 36px}
  .page-hdr h1{font-size:clamp(22px,7vw,32px)}
  .brand-c{padding:24px 20px}
  .brand-c h3{font-size:18px}
  .join-box{padding:40px 20px}
  .footer{padding:32px 16px 16px}
}

/* fix iOS Safari height */
@supports(height:100dvh){
  .hero{min-height:100dvh}
}

/* ===== Staff 招募中占位 ===== */
.staff-pending{opacity:.6;filter:saturate(0.55)}
.staff-pending:hover{opacity:.88;filter:none}
.staff-pending .av{background:linear-gradient(135deg,rgba(30,109,242,0.35),rgba(129,140,248,0.35));font-size:13px;letter-spacing:0.5px}

.invite-banner{max-width:880px;margin:0 auto 36px;padding:22px 26px;border-radius:14px;background:linear-gradient(145deg,rgba(30,109,242,0.07),rgba(15,29,58,0.18));border:1px solid rgba(30,109,242,0.18);display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.invite-banner .ib-text{flex:1;min-width:220px}
.invite-banner .ib-text strong{color:var(--text);font-weight:600;display:block;margin-bottom:2px;font-size:14.5px}
.invite-banner .ib-text p{color:var(--text2);font-size:13px;line-height:1.7;margin:0}
.invite-banner .btn-p{flex-shrink:0}

/* Light theme 适配 footer 标题/邮箱链接 */
[data-theme="light"] .footer-c h4{color:var(--text)}
[data-theme="light"] .footer-c a:hover{color:var(--blue)}