/* ========== CSS Reset & Variables ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#1B3A5C;
  --primary-dark:#0F2440;
  --accent:#C41230;
  --accent-hover:#A00E28;
  --gold:#D4A853;
  --tab-active:#005CAA;
  --bg:#F5F6F8;
  --white:#FFFFFF;
  --text:#333333;
  --text-light:#666666;
  --text-muted:#999999;
  --border:#E0E0E0;
  --bullet-green:#00AA00;
  --shadow:0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg:0 8px 30px rgba(0,0,0,0.12);
  --radius:4px;
  --radius-lg:8px;
  --font:"Microsoft YaHei","PingFang SC","Helvetica Neue",sans-serif;
  --max-width:1200px;
  --submenu-width:680px;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;min-width:320px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}

/* ========== Top Bar ========== */
.top-bar{background:var(--primary-dark);color:rgba(255,255,255,0.7);font-size:13px;line-height:36px}
.top-bar .container{display:flex;justify-content:space-between;align-items:center}
.top-bar a{color:rgba(255,255,255,0.7);transition:color .2s}
.top-bar a:hover{color:var(--white)}
.top-bar .welcome{margin-right:16px}

/* ========== Header ========== */
.header{background:var(--white);box-shadow:0 2px 8px rgba(0,0,0,0.06);position:sticky;top:0;z-index:1000}
.header .container{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo-area{display:flex;align-items:center;gap:14px}
.logo-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--accent),#E85D75);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--white);font-weight:bold;flex-shrink:0}
.logo-text h1{font-size:20px;color:var(--primary);font-weight:700;line-height:1.2}
.logo-text p{font-size:11px;color:var(--text-muted);letter-spacing:0.5px}

/* ========== Navigation ========== */
.nav{flex:1;display:flex;justify-content:flex-end;align-items:center;height:100%}
.nav-list{display:flex;height:100%}
.nav-item{position:relative;height:100%}
.nav-item>a,.nav-item>.nav-label{display:flex;align-items:center;padding:0 18px;height:100%;font-size:15px;color:var(--text);font-weight:500;cursor:pointer;transition:color .2s;white-space:nowrap;position:relative}
.nav-item>a::after,.nav-item>.nav-label::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background:var(--accent);transition:width .3s}
.nav-item.active>a,.nav-item:hover>a,.nav-item:hover>.nav-label{color:var(--accent)}
.nav-item.active>a::after,.nav-item:hover>a::after,.nav-item:hover>.nav-label::after{width:100%}
.nav-item.has-submenu>.nav-label::before{content:'▾';font-size:10px;margin-left:4px;transition:transform .3s}
.nav-item.has-submenu:hover>.nav-label::before{transform:rotate(180deg)}

/* ========== Mega Menu Dropdown ========== */
.submenu{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:var(--white);box-shadow:var(--shadow-lg);border-radius:var(--radius-lg);padding:24px;display:flex;gap:24px;opacity:0;visibility:hidden;pointer-events:none;transition:all .3s ease;z-index:999;width:var(--submenu-width)}
.nav-item:hover>.submenu,.submenu:hover{opacity:1;visibility:visible;pointer-events:auto}
.submenu-img{width:200px;height:150px;border-radius:var(--radius);overflow:hidden;flex-shrink:0;background:linear-gradient(135deg,#E8EDF2,#D0D8E0);display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:13px}
.submenu-img img{width:100%;height:100%;object-fit:cover}
.submenu-content{flex:1;min-width:0}
.submenu-content h3{font-size:16px;color:var(--primary);margin-bottom:8px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.submenu-content .sub-desc{font-size:13px;color:var(--text-light);line-height:1.7;margin-bottom:12px}
.submenu-links{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px}
.submenu-links a{display:block;padding:7px 10px;font-size:14px;color:var(--text);border-radius:var(--radius);transition:all .2s}
.submenu-links a:hover{background:#F0F4F8;color:var(--accent);padding-left:14px}
.submenu-links a::before{content:'▸ ';color:var(--accent);font-size:10px}
.submenu-links.full-width{grid-template-columns:1fr}
.nav-item:nth-last-child(-n+2)>.submenu{left:auto;right:0;transform:none}

/* ========== Banner ========== */
.banner{position:relative;width:100%;height:440px;overflow:hidden;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}
.banner-slides{position:relative;width:100%;height:100%}
.banner-slide{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .8s ease}
.banner-slide.active{opacity:1}
.banner-slide .slide-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0.35}
.banner-slide .slide-overlay{position:relative;z-index:2;text-align:center;color:var(--white);max-width:800px;padding:0 20px}
.banner-slide .slide-overlay h2{font-size:32px;font-weight:700;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,0.4);line-height:1.4}
.banner-slide .slide-overlay p{font-size:16px;opacity:0.9}
.banner-indicators{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:10}
.banner-indicators span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,0.4);cursor:pointer;transition:all .3s}
.banner-indicators span.active{background:var(--white);width:32px;border-radius:6px}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;background:rgba(255,255,255,0.15);border:none;color:var(--white);font-size:22px;cursor:pointer;border-radius:50%;transition:background .3s;z-index:10;display:flex;align-items:center;justify-content:center}
.banner-arrow:hover{background:rgba(255,255,255,0.3)}
.banner-arrow.prev{left:20px}
.banner-arrow.next{right:20px}

/* ========== Section Common ========== */
.section{padding:50px 0}
.section-header{text-align:center;margin-bottom:40px}
.section-header h2{font-size:28px;color:var(--primary);font-weight:700;position:relative;display:inline-block}
.section-header h2::after{content:'';display:block;width:60px;height:3px;background:var(--accent);margin:12px auto 0}
.section-header p{color:var(--text-muted);margin-top:8px;font-size:14px}

/* ========== Featured News Section (Screenshot Layout) ========== */
.featured-section{padding:40px 0}
.featured-wrap{display:flex;gap:0;background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
/* Left: Featured Image Carousel */
.featured-image{flex:0 0 400px;position:relative;overflow:hidden;min-height:420px;background:#2c3e50;cursor:default}
.fc-slides{position:relative;width:100%;height:100%}
.fc-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .5s ease,visibility .5s ease}
.fc-slide.active{opacity:1;visibility:visible;position:relative;width:100%;height:100%}
/* Slide image — fill entire slide */
.fc-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
/* Caption overlay at bottom */
.fc-caption{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,0.72);padding:10px 16px;z-index:5}
.fc-caption p{color:#fff;font-size:13px;line-height:1.5}
/* Carousel arrows */
.fc-arrow{position:absolute;top:45%;transform:translateY(-50%);z-index:10;width:32px;height:32px;background:rgba(0,0,0,0.45);color:#fff;border:none;border-radius:50%;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background .2s;outline:none}
.fc-arrow:hover{background:rgba(0,0,0,0.7)}
.fc-prev{left:8px}
.fc-next{right:8px}
/* Carousel dots */
.fc-dots{position:absolute;bottom:38px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:10}
.fc-dots .dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,0.5);border:none;cursor:pointer;padding:0;transition:background .2s;outline:none}
.fc-dots .dot.active{background:#fff;box-shadow:0 0 4px rgba(255,255,255,0.6)}
/* Right: Tab Panel */
.featured-tabs{flex:1;min-width:0;display:flex;flex-direction:column}
/* Tab Header */
.tab-header{display:flex;align-items:center;padding:20px 24px 0;gap:0;position:relative}
.tab-btn{padding:10px 24px;font-size:16px;font-weight:bold;border:none;cursor:pointer;border-radius:var(--radius) var(--radius) 0 0;transition:all .2s;outline:none;font-family:var(--font)}
.tab-btn.active{background:var(--tab-active);color:var(--white);box-shadow:0 2px 6px rgba(0,92,170,0.3)}
.tab-btn:not(.active){background:#EEEEEE;color:var(--text-light)}
.tab-btn:not(.active):hover{background:#E0E0E0}
.tab-more{margin-left:auto;font-size:13px;color:#0066CC;padding:10px 0;transition:color .2s;flex-shrink:0}
.tab-more:hover{color:var(--tab-active)}
/* Tab Content */
.tab-content{padding:10px 24px 24px;flex:1}
.tab-pane{display:none}
.tab-pane.active{display:block}
/* List Items */
.info-list li{display:flex;align-items:center;padding:13px 0;border-bottom:1px dashed #D9D9D9;gap:10px}
.info-list li:last-child{border-bottom:none}
.info-list .bullet{width:6px;height:6px;background:var(--bullet-green);border-radius:50%;flex-shrink:0}
.info-list .item-title{flex:1;font-size:14px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;transition:color .2s}
.info-list a:hover .item-title{color:var(--tab-active)}
.info-list .item-date{font-size:12px;color:var(--text-muted);flex-shrink:0;white-space:nowrap}
.info-list .item-tag{display:inline-block;padding:1px 6px;font-size:11px;border-radius:2px;color:var(--white);flex-shrink:0;margin-right:2px}
.info-list .item-tag.gg{background:#E74C3C}
.info-list .item-tag.zb{background:#2E86DE}

/* ========== Info Cards Row ========== */
.info-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.info-card{background:var(--white);border-radius:var(--radius-lg);padding:32px 28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;text-align:center;border-top:3px solid var(--accent)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.info-card .card-icon{width:56px;height:56px;margin:0 auto 16px;background:linear-gradient(135deg,var(--accent),#E85D75);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--white)}
.info-card h3{font-size:18px;color:var(--primary);margin-bottom:12px}
.info-card .highlight{font-size:28px;font-weight:700;color:var(--accent);margin:8px 0}
.info-card p{font-size:14px;color:var(--text-light);line-height:1.8}
.info-card.blue{border-top-color:#2E86DE}
.info-card.blue .card-icon{background:linear-gradient(135deg,#2E86DE,#54A0FF)}
.info-card.gold{border-top-color:var(--gold)}
.info-card.gold .card-icon{background:linear-gradient(135deg,var(--gold),#E8C97A)}

/* ========== Sub Sections Grid ========== */
.sub-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sub-card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:28px;transition:transform .3s}
.sub-card:hover{transform:translateY(-2px)}
.sub-card h3{font-size:18px;color:var(--primary);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
.sub-card h3::before{content:'';display:inline-block;width:4px;height:18px;background:var(--accent);border-radius:2px}
.sub-card ul li{padding:8px 0;font-size:14px}
.sub-card ul li a{color:var(--text);transition:color .2s;display:flex;justify-content:space-between}
.sub-card ul li a:hover{color:var(--accent)}
.sub-card ul li .date{color:var(--text-muted);font-size:12px;flex-shrink:0}

/* ========== 综合发展 Section ========== */
.dev-section{margin-top:24px}
.dev-red{background:#CC0000;padding:48px 0 36px;color:#fff;position:relative;overflow:hidden}
.dev-title-area{text-align:center;margin-bottom:32px;position:relative}
.dev-title-en{display:block;font-size:36px;font-weight:700;color:rgba(255,255,255,0.12);letter-spacing:8px;text-transform:uppercase;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);white-space:nowrap;pointer-events:none}
.dev-title{font-size:28px;font-weight:700;color:#fff;position:relative;z-index:1;display:inline-block}
.dev-title::after{content:'';display:block;width:60px;height:3px;background:#fff;margin:10px auto 0;border-radius:2px}
.dev-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.dev-card{text-align:center}
.dev-card-img{height:160px;border-radius:8px;overflow:hidden;margin-bottom:14px;display:flex;align-items:center;justify-content:center}
.enterprise-img{background:linear-gradient(180deg,#4A90D9,#7FB3E0)}
.vision-img{background:linear-gradient(180deg,#6DB3A1,#A8D5C3)}
.party-img{background:linear-gradient(180deg,#D44B4B,#E88383)}
.anti-img{background:#fff;border:2px solid #CC0000}
.img-placeholder-build{width:100%;height:100%;background:linear-gradient(135deg,rgba(255,255,255,0.15),rgba(255,255,255,0.05));position:relative}
.img-placeholder-build::after{content:'🏢';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:48px;opacity:0.6}
.img-placeholder-city{width:100%;height:100%;background:linear-gradient(135deg,rgba(255,255,255,0.15),rgba(255,255,255,0.05));position:relative}
.img-placeholder-city::after{content:'⛲';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:48px;opacity:0.6}
.party-illustration{text-align:center;color:#fff}
.party-star{font-size:36px;display:block;margin-bottom:4px}
.party-text{font-size:14px;font-weight:600}
.anti-card{padding:20px;text-align:center}
.anti-main{font-size:20px;font-weight:700;color:#CC0000;line-height:1.5}
.anti-sub{font-size:11px;color:#CC0000;margin-top:8px;letter-spacing:1px}
.dev-card h4{font-size:15px;font-weight:600;margin-bottom:6px;color:#fff}
.dev-card p{font-size:12px;color:rgba(255,255,255,0.8);line-height:1.6;max-width:200px;margin:0 auto}

/* Posters */
.dev-posters{background:#F5F5F5;padding:32px 0}
.poster-row{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.poster-card{height:360px;border-radius:10px;overflow:hidden;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding:24px 16px}
.poster-teal{background:linear-gradient(180deg,#2D8B7A,#1A6B5C)}
.poster-wine{background:linear-gradient(135deg,#8B1A2B,#4A0E18)}
.poster-wave{position:absolute;left:0;top:0;width:40%;height:100%;background:rgba(255,255,255,0.08);border-radius:0 60% 60% 0}
.poster-glow{position:absolute;right:0;top:20%;width:60%;height:60%;background:radial-gradient(ellipse,rgba(255,215,0,0.25),transparent);border-radius:50%}
.poster-img-area{flex:1;display:flex;align-items:center;justify-content:center;position:relative;z-index:1;width:100%}
.poster-cityscape{width:80%;height:60%;background:linear-gradient(180deg,rgba(255,255,255,0.15),rgba(255,255,255,0.05));border-radius:6px;position:relative}
.poster-cityscape::after{content:'🏙️';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:40px;opacity:0.5}
.poster-cityscape2{width:80%;height:60%;background:linear-gradient(180deg,rgba(255,255,255,0.15),rgba(255,255,255,0.05));border-radius:6px;position:relative}
.poster-cityscape2::after{content:'🌉';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:40px;opacity:0.5}
.poster-text{position:relative;z-index:1;text-align:center;color:#fff}
.poster-line1{font-size:15px;font-weight:600;margin-bottom:4px}
.poster-line2{font-size:13px;opacity:0.85}
.poster-calligraphy{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 2px;position:relative;z-index:1;color:#FFD700;text-shadow:0 2px 6px rgba(0,0,0,0.4);max-width:120px;writing-mode:vertical-rl;font-size:18px;font-weight:700;letter-spacing:6px;line-height:2}

@media(max-width:768px){
  .dev-grid-4{grid-template-columns:repeat(2,1fr)}
  .poster-row{grid-template-columns:repeat(2,1fr);gap:12px}
  .poster-card{height:260px}
}

/* ========== Links ========== */
.links-section{background:var(--white);padding:36px 0}
.links-grid{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.links-grid a{display:inline-block;padding:8px 20px;border:1px solid var(--border);border-radius:20px;font-size:13px;color:var(--text-light);transition:all .2s}
.links-grid a:hover{border-color:var(--accent);color:var(--accent);background:#FFF5F5}

/* ========== Footer ========== */
.footer{background:var(--primary-dark);color:rgba(255,255,255,0.85);padding:48px 0 32px}
.footer .container{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;max-width:var(--max-width)}
/* Left: Contact + Compliance */
.footer-left{flex:1;min-width:0}
.footer-info{font-size:14px;line-height:2.2}
.footer-info .info-row{display:flex;align-items:flex-start;gap:8px}
.footer-info .info-label{color:rgba(255,255,255,0.5);flex-shrink:0;font-size:14px}
.footer-info .info-value{color:rgba(255,255,255,0.85)}
.footer-compliance{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,0.12);font-size:12px;color:rgba(255,255,255,0.5);line-height:2}
.footer-compliance a{color:rgba(255,255,255,0.5);transition:color .2s}
.footer-compliance a:hover{color:var(--white)}
.footer-compliance .compliance-sep{margin:0 8px;color:rgba(255,255,255,0.2)}
.footer-compliance .beian-badge{display:inline-block;vertical-align:middle;width:14px;height:14px;background:var(--gold);border-radius:2px;margin-right:4px;position:relative;top:-1px}
/* Right: QR Code */
.footer-right{flex-shrink:0;text-align:center}
.footer-qr{width:100px;height:100px;background:rgba(255,255,255,0.08);border:2px solid rgba(255,255,255,0.15);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin:0 auto 10px;color:rgba(255,255,255,0.4);font-size:12px}
.footer-qr-label{font-size:13px;color:rgba(255,255,255,0.6)}
/* ========== Mobile Menu ========== */
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.mobile-toggle span{width:24px;height:2px;background:var(--primary);transition:all .3s}
.mobile-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-toggle.active span:nth-child(2){opacity:0}
.mobile-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ========== Responsive ========== */
@media(max-width:1024px){
  .featured-wrap{flex-direction:column}
  .featured-image{flex:0 0 auto;height:320px;min-height:unset;max-height:unset}
  .info-row{grid-template-columns:1fr 1fr}
  .sub-grid{grid-template-columns:1fr}
  .footer .container{grid-template-columns:1fr}
  .banner{height:300px}
  .banner-slide .slide-overlay h2{font-size:22px}
}
@media(max-width:768px){
  .mobile-toggle{display:flex}
  .nav{position:fixed;top:80px;left:0;width:100%;height:0;overflow:hidden;background:var(--white);transition:height .3s;box-shadow:0 4px 12px rgba(0,0,0,0.1)}
  .nav.open{height:auto;max-height:80vh;overflow-y:auto}
  .nav-list{flex-direction:column;height:auto}
  .nav-item{border-bottom:1px solid var(--border)}
  .nav-item>a,.nav-item>.nav-label{padding:14px 20px;font-size:14px}
  .nav-item>a::after,.nav-item>.nav-label::after{display:none}
  .submenu{position:static;transform:none;width:100%;box-shadow:none;display:none;padding:0 0 0 16px;opacity:1;visibility:visible;pointer-events:auto;border-radius:0}
  .nav-item.has-submenu.open>.submenu{display:block}
  .submenu-img{display:none}
  .submenu-links{grid-template-columns:1fr}
  .nav-item.has-submenu>.nav-label::before{content:'▸';font-size:12px;margin-left:auto;transition:transform .3s}
  .nav-item.has-submenu.open>.nav-label::before{transform:rotate(90deg)}
  .top-bar{display:none}
  .header .container{height:60px}
  .logo-text h1{font-size:16px}
  .featured-image{height:240px;min-height:unset;max-height:unset}
  .info-row{grid-template-columns:1fr}
  .tab-btn{padding:8px 14px;font-size:14px}
  .banner{height:220px}
  .banner-slide .slide-overlay h2{font-size:17px}
  .banner-arrow{width:36px;height:36px;font-size:16px}
}