/* =========================================================
   四川中广云媒科技有限公司 官网样式
   主色深蓝 + 暖红点缀  商务大气
   ========================================================= */
:root{
  --navy:#1b3a5c;
  --navy-2:#24486f;
  --red:#c8102e;
  --red-l:#e03a3a;
  --gray:#f5f7fa;
  --gray-2:#eef1f5;
  --text:#2b3440;
  --text-l:#1b3a5c;
  --border:#e4e8ee;
  --shadow:0 8px 28px rgba(20,40,70,.08);
  --radius:10px;
  --card:#ffffff;
  --panel:#f5f7fa;
  --panel-2:#eef1f5;
  --bg-blend:rgba(255,255,255,.86);
  --input:#fbfcfe;
}
[data-theme="dark"]{
  --navy:#9cc0e6;
  --navy-2:#b0ceea;
  --red:#ef6a7f;
  --red-l:#f27f90;
  --gray:#222b3a;
  --gray-2:#2a3547;
  --text:#e7ecf3;
  --text-l:#a7b6c9;
  --border:#3a4a60;
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --card:#1e2836;
  --panel:#232d3c;
  --panel-2:#2a3547;
  --bg-blend:rgba(13,20,31,.9);
  --input:#18222f;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);line-height:1.7;
  background-image:linear-gradient(var(--bg-blend),var(--bg-blend)),url(../img/body-bg.jpg);
  background-size:100% 100%,cover;background-position:center;background-attachment:fixed;
  transition:background .3s,color .3s;
}
body{padding-top:72px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:min(1200px,92%);margin:0 auto}
.btn{display:inline-block;padding:12px 30px;border-radius:6px;font-size:15px;font-weight:600;transition:.25s;cursor:pointer;border:none}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-l)}
.btn-outline{border:1px solid #fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}

/* ---------- 头部 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;transition:background .3s,box-shadow .3s}
.site-header.transparent{background:transparent;box-shadow:none}
.site-header.transparent.scrolled{background:transparent;box-shadow:none}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{width:42px;height:42px;object-fit:contain}
.logo-text{display:flex;flex-direction:column;line-height:1.3}
.logo-text strong{font-size:19px;color:rgba(255,255,255,.9);letter-spacing:1px;text-shadow:0 0 14px rgba(255,255,255,.30),0 1px 5px rgba(0,0,0,.30)}
.logo-text em{font-size:11px;color:#e7f1fb;font-style:normal;letter-spacing:.5px}
.main-nav{display:flex;gap:4px}
.main-nav a{padding:8px 18px;border-radius:999px;font-size:15px;color:#d8e5f4;border:1.5px solid rgba(216,229,244,.45);background:rgba(255,255,255,.10);font-weight:600;transition:.2s}
.main-nav a:hover,.main-nav a.active{color:#ffffff;background:#2e5480;border-color:#2e5480;box-shadow:0 2px 12px rgba(46,84,128,.4)}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:#fff;cursor:pointer}
.lang-toggle{display:inline-flex;align-items:center;justify-content:center;background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);border-radius:999px;min-width:46px;height:32px;font-size:13.5px;font-weight:600;margin-left:10px;padding:0 10px;cursor:pointer;letter-spacing:.5px;transition:.2s;flex-shrink:0;user-select:none}
.lang-toggle:hover{background:rgba(255,255,255,.18);border-color:#fff}

/* ---------- Hero 轮播 ---------- */
.hero{position:relative;height:calc(100vh - 72px);min-height:600px;overflow:hidden;color:#fff}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s;overflow:hidden;display:flex;align-items:center;z-index:1}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;background-size:cover;background-position:center;will-change:transform}
.hero-slide.active{opacity:1;z-index:2}

/* ============ 轮播图浮动效果（桌面端，温和缩放/平移） ============ */
.hero-slide .hero-bg{animation-play-state:paused}
.hero-slide.active .hero-bg{animation-play-state:running}
.hero-slide:nth-child(1) .hero-bg{animation:kbZoomIn 12s ease-in-out both}
.hero-slide:nth-child(2) .hero-bg{animation:kbPanHor 12s ease-in-out both}
.hero-slide:nth-child(3) .hero-bg{animation:kbZoomOut 12s ease-in-out both}
.hero-slide:nth-child(4) .hero-bg{animation:kbPanVert 12s ease-in-out both}
@keyframes kbZoomIn{from{transform:scale(1)}to{transform:scale(1.16)}}
@keyframes kbZoomOut{from{transform:scale(1.16)}to{transform:scale(1)}}
@keyframes kbPanHor{0%{transform:scale(1.13) translateX(-2.5%)}100%{transform:scale(1.13) translateX(2.5%)}}
@keyframes kbPanVert{0%{transform:scale(1.13) translateY(-2.5%)}100%{transform:scale(1.13) translateY(2.5%)}}
.hero-overlay{display:none} /* 移除毛玻璃遮罩，显示高清原图 */
.hero-overlay::after{content:"";position:absolute;inset:0;mix-blend-mode:overlay;opacity:.55;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E")}
.hero-slide:nth-child(3) .hero-overlay{background:radial-gradient(110% 130% at 12% 0%, rgba(201,162,39,.12), transparent 46%),linear-gradient(to right, rgba(15,29,51,.84), rgba(15,29,51,.60) 46%, rgba(15,29,51,.36))}
.hero-content{position:relative;z-index:2;max-width:560px;transform:translateX(-17vw)}
.hero-content .tag{display:inline-block;background:rgba(255,255,255,.16);padding:6px 20px;border-radius:30px;font-size:46px;color:#ffe9c9;margin-bottom:18px}
.hero-content h1{font-size:46px;line-height:1.25;letter-spacing:1px}
.hero-content h2{font-size:30px;font-weight:400;margin:6px 0 10px;color:#ffe9c9}
.hero-content p{font-size:17px;opacity:.92;margin-bottom:26px}
.hero-content .tag,.hero-content h1,.hero-content h2,.hero-content p{text-shadow:0 2px 14px rgba(0,0,0,.55)}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.hero-dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.5);cursor:pointer}
.hero-dots button.active{background:#fff;width:26px;border-radius:6px}

/* ---------- section ---------- */
.section{padding:72px 0}
.section.gray{background:var(--gray)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:30px;color:var(--navy);letter-spacing:1px}
.sec-head .sub{color:var(--text-l);margin-top:10px;font-size:15px;letter-spacing:2px}
.sec-head .line{width:52px;height:3px;background:var(--red);margin:14px auto 0;border-radius:2px}

/* 业务卡片 */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.biz-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;cursor:pointer;border:1px solid var(--border)}
.biz-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,70,.14)}
.biz-card img{height:190px;width:100%;object-fit:cover}
.biz-card .bd{padding:20px}
.biz-card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.biz-card p{color:var(--text-l);font-size:14px}
.biz-card .tag{display:inline-block;background:#fdecee;color:var(--red);font-size:12px;padding:2px 10px;border-radius:20px;margin-bottom:10px}

/* 优势 / 四格 */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.adv-item{display:block;color:inherit;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 20px;text-align:center;transition:.3s}
.adv-item:hover{border-color:var(--red);transform:translateY(-4px)}
.adv-item .ic{font-size:40px;margin-bottom:12px}
.adv-item h3{font-size:17px;color:var(--navy);margin-bottom:10px}
.adv-item p{font-size:13.5px;color:var(--text-l);min-height:60px}

/* CTA */
.cta{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:56px 0;text-align:center}
.cta h2{font-size:28px;letter-spacing:1px;margin-bottom:10px}
.cta p{opacity:.85;margin-bottom:24px}

/* 联系版块 */
.contact-band{background:var(--card);padding:60px 0}
.cb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cb-item{display:flex;gap:16px;align-items:flex-start;background:var(--gray);padding:24px;border-radius:var(--radius);border-left:3px solid var(--red)}
.cb-item .ic{font-size:30px}
.cb-item h3{font-size:16px;color:var(--navy);margin-bottom:6px}
.cb-item p{color:var(--text-l);font-size:14px}

/* ---------- 内页 Hero ---------- */
.page-hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;padding:70px 0;text-align:center;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-60px;bottom:-60px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.06)}
.page-hero h1{font-size:34px;letter-spacing:2px}
.page-hero p{opacity:.85;margin-top:10px;letter-spacing:2px}

/* ---------- 痛点/方案 ---------- */
.svc{padding:56px 0;border-bottom:1px solid var(--border)}
.svc:nth-child(even){background:var(--panel)}
/* 广告传媒服务所有服务区块背景统一（与“品牌全案策划”一致的浅灰面板），含活动策划与执行 */
.media-service .svc{background:var(--panel)}
.svc-head{display:flex;gap:16px;align-items:center;margin-bottom:30px}
.svc-head img{width:56px;height:56px;object-fit:cover;border-radius:10px}
.svc-head h3{font-size:22px;color:var(--navy)}
.svc-head p{color:var(--text-l);font-size:13px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.col-tag{display:inline-block;font-size:13px;font-weight:700;padding:4px 12px;border-radius:6px;margin-bottom:14px}
.col-tag.pain{background:#fdecee;color:var(--red)}
.col-tag.sol{background:#e5f2ea;color:#1d7a4d}
.two-col ul li{position:relative;padding:10px 0 10px 26px;border-bottom:1px dashed var(--border);font-size:14.5px}
.two-col ul li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:8px;border-radius:50%;background:var(--red)}
.two-col ul.sol li::before{background:#2ba26a}
.two-col ul li b{color:var(--navy)}
.pain-box p{margin:10px 0;color:var(--text-l);font-size:14px;background:#fdf6f6;padding:10px 14px;border-radius:6px}

/* ---------- 全生命周期 阶段 ---------- */
.stage{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:22px}
.stage-h{display:flex;gap:18px;align-items:flex-start;margin-bottom:16px}
.stage-num{background:transparent;color:var(--navy);min-width:52px;height:52px;border-radius:8px;border:2px solid var(--navy);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}
.stage-h h3{color:var(--navy);font-size:20px}
.stage-h p{color:var(--red);font-size:13px;font-weight:600}
.stage .three{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
.stage h4{font-size:14px;color:var(--navy);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.stage ul li{font-size:14px;color:var(--text-l);padding:5px 0 5px 16px;position:relative}
.stage ul li::before{content:"·";position:absolute;left:4px;color:var(--red);font-weight:700}
.stage .pain-desc{background:#fdf6f6;border-left:3px solid var(--red);padding:10px 14px;font-size:13.5px;color:#8a6a6a;border-radius:0 6px 6px 0}

/* ---------- 案例 ---------- */
.filter-bar{display:flex;gap:12px;justify-content:center;margin-bottom:36px}
.filter-bar button{padding:8px 22px;border-radius:30px;border:1px solid var(--border);background:var(--card);cursor:pointer;font-size:14px;color:var(--text-l);transition:.2s}
.filter-bar button.active,.filter-bar button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.case-card img{height:210px;width:100%;object-fit:cover}
.case-card .cd{padding:20px}
.case-card .tag{display:inline-block;background:var(--gray-2);color:var(--navy);font-size:12px;padding:2px 10px;border-radius:4px;margin-bottom:10px}
.case-card h3{font-size:17px;color:var(--navy);margin-bottom:6px}
.case-card p{color:var(--text-l);font-size:13px}
.case-card .metric{margin-top:12px;color:var(--red);font-weight:700;font-size:15px;text-align:right}

/* 案例详情 */
.case-detail .cd-meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--text-l);font-size:13px;margin:6px 0 20px}
.cd-meta span{background:var(--gray-2);padding:4px 12px;border-radius:20px}
.cd-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:26px 0}
.cd-metrics .m{background:var(--gray);border-radius:var(--radius);padding:18px;text-align:center}
.cd-metrics .m b{font-size:26px;color:var(--red);display:block}
.cd-metrics .m span{font-size:13px;color:var(--text-l)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.gallery-grid img{border-radius:8px;height:150px;object-fit:cover}
.case-detail blockquote{margin:24px 0;background:var(--gray);border-left:4px solid var(--red);padding:18px 22px;color:var(--navy);font-size:15px;border-radius:0 8px 8px 0}
.case-highlights .hl{display:flex;gap:14px;margin-bottom:18px}
.hl .n{min-width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.hl h3{color:var(--navy);font-size:16px}
.hl p{color:var(--text-l);font-size:14px}

/* ---------- 关于页 ---------- */
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about-intro img{border-radius:var(--radius);height:340px;object-fit:cover;width:100%}
.about-intro p{color:var(--text-l);margin-bottom:14px;font-size:15px}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.value-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 20px;text-align:center}
.value-item h3{color:var(--navy);font-size:17px;margin-bottom:8px}
.value-item p{color:var(--text-l);font-size:13.5px}
.gallery2{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery2 img{border-radius:var(--radius);height:200px;object-fit:cover}

/* ---------- 联系我们页 ---------- */
.contact-page{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.contact-info .cb-item{margin-bottom:16px}
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-card h3{color:var(--navy);font-size:20px;margin-bottom:20px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;color:var(--navy);margin-bottom:8px;font-weight:600}
.form-group label i{color:var(--red);font-style:normal}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:14.5px;font-family:inherit;transition:.2s;background:var(--input)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--navy);background:var(--card);box-shadow:0 0 0 3px rgba(27,58,92,.12)}
.form-group textarea{resize:vertical;min-height:110px}
.form-msg{padding:12px 14px;border-radius:8px;margin-bottom:16px;font-size:14px;display:none}
.form-msg.ok{display:block;background:#e5f2ea;color:#1d7a4d;border:1px solid #bcdacc}
.form-msg.err{display:block;background:#fdecee;color:var(--red);border:1px solid #f3c2ca}
.form-msg.show{display:block}
.form-btn{width:100%;padding:14px;font-size:16px}
.map-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-top:36px;height:320px;border:1px solid var(--border)}

/* ---------- 页脚 ---------- */
.site-footer{background:#12263b;color:#aebccc;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;padding-bottom:40px}
/* 页脚关于我们 与 快速导航 间距加宽(约3cm) */
.footer-grid .footer-col:nth-child(2){margin-left:70px}
@media(max-width:640px){ .footer-grid .footer-col:nth-child(2){margin-left:0} }
.site-footer h3{color:#fff;font-size:18px;margin-bottom:14px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.site-footer ul li{padding:7px 0;font-size:14px}
.site-footer ul li a:hover{color:#fff}
.footer-about p{font-size:13.5px;line-height:1.9}
.footer-contact li{color:#dfe6ee}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:13px}
.back-top{position:fixed;right:26px;bottom:30px;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.3s;z-index:90}
.back-top.show{opacity:1;visibility:visible}

/* ---------- 响应式 ---------- */
@media(max-width:992px){
  .biz-grid,.adv-grid,.value-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .cd-metrics{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .about-intro,.contact-page{grid-template-columns:1fr}
  .gallery2{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:72px;right:0;width:250px;height:calc(100vh - 72px);background:transparent;backdrop-filter:blur(16px) saturate(1.2);-webkit-backdrop-filter:blur(16px) saturate(1.2);flex-direction:column;padding:20px;transform:translateX(100%);transition:.3s}
  .main-nav.open{transform:translateX(0)}
  .main-nav a{padding:12px 14px;margin-bottom:10px;color:#d8e5f4;border:1.5px solid rgba(216,229,244,.45);border-radius:999px;text-align:center;font-weight:600;background:rgba(255,255,255,.12);transition:.22s}
  .main-nav a:hover,.main-nav a.active{background:#2e5480;color:#ffffff;border-color:#2e5480;box-shadow:0 2px 14px rgba(46,84,128,.45)}
  .main-nav a:active{transform:scale(.96)}
  .nav-toggle{display:block}
  .hero{height:420px}
  /* 移动端：轮播文字水平+垂直居中 */
  .hero-content{transform:none;max-width:88%;margin-left:5vw;margin-right:auto;text-align:left}
  .hero-content p{margin-left:0}
  .hero-content h1{font-size:32px}
  .hero-content .tag{font-size:32px}
  .hero-content h2{font-size:24px}
  .two-col,.cb-grid,.footer-grid,.three,.value-grid{grid-template-columns:1fr}
  .stage .three{grid-template-columns:1fr}
  .case-grid,.gallery-grid,.gallery2,.biz-grid,.adv-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
}


/* ============ 主题切换按钮 ============ */
.header-tools{display:flex;align-items:center;gap:10px;margin-left:8px}
.theme-btn{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);border-radius:50%;width:34px;height:34px;font-size:15px;cursor:pointer;line-height:1;display:flex;align-items:center;justify-content:center;transition:.2s;flex-shrink:0}
.theme-btn:hover{background:rgba(255,255,255,.2)}

/* 移动端：头部工具收进抽屉菜单 */
@media(max-width:900px){
  .header-tools{display:none}
  .main-nav .theme-btn{border-color:var(--border)}
  .mobile-tools{display:flex;gap:10px;align-items:center;justify-content:center;margin-top:14px}
}

/* 首页轮播：首屏全屏 */
.page-home .hero{min-height:calc(100vh - 72px)}

/* 深色模式辅助修正 */
[data-theme="dark"] .two-col ul.sol li::before{background:#3fbf87}
[data-theme="dark"] .pain-box p,[data-theme="dark"] .stage .pain-desc{background:#2a2333;color:#d8b7b7}
[data-theme="dark"] .col-tag.pain{background:#3a2a31;color:#ef6a7f}
[data-theme="dark"] .col-tag.sol{background:#20372e;color:#57c78e}
[data-theme="dark"] .case-card .tag{background:var(--panel-2)}
[data-theme="dark"] .form-msg.ok{background:#1e372c;color:#6fd6a0;border-color:#2c4a3a}
[data-theme="dark"] .form-msg.err{background:#3a2328;color:#f27f90;border-color:#5a333b}
[data-theme="dark"] .biz-card .tag{background:#3a2a31}

/* 多设备适配增强 */
@media(max-width:1080px){ .three{grid-template-columns:1fr 1fr} }
@media(max-width:640px){
  .hero{min-height:72vh}
  .hero-content h1{font-size:28px}
  .hero-content .tag{font-size:28px}
  .hero-content p{font-size:15px}
  .sec-head h2{font-size:24px}
  .btn{padding:11px 22px;font-size:14px}
  .page-hero h1{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:400px){ .footer-grid{grid-template-columns:1fr} }

/* 移动端：关闭轮播图放大/平移动画，保持图片 cover 居中，避免拉伸突兀 */
@media(max-width:768px){
  .hero-slide,.hero-slide.active{animation:none !important;background-size:cover;background-position:center !important}
}

/* ============ 轮播文字入场动画（5行错落淡入淡出） ============ */
.hero-slide .hero-content > *{opacity:0}
.hero-slide.active .hero-content .tag{animation:zcFadeDown .95s ease-out both}
.hero-slide.active .hero-content h1{animation:zcFadeUp 1.05s ease-out .18s both}
.hero-slide.active .hero-content h2{animation:zcFadeLeft 1s ease-out .34s both}
.hero-slide.active .hero-content p{animation:zcFade 1.15s ease-out .5s both}
.hero-slide.active .hero-content .btn{animation:zcFadeUp 1.05s ease-out .66s both}
@keyframes zcFadeDown{from{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}
@keyframes zcFadeUp{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:translateY(0)}}
@keyframes zcFadeLeft{from{opacity:0;transform:translateX(-34px)}to{opacity:1;transform:translateX(0)}}
@keyframes zcFade{from{opacity:0}to{opacity:1}}

/* ============ 联系我们区块：背景图 + 半透明渐变过渡 ============ */
.cb-band{position:relative;padding:84px 0 72px;background-size:cover;background-position:center;background-color:#12263b;color:#fff;overflow:hidden}
.cb-band::before{content:"";position:absolute;inset:0;background:linear-gradient(to bottom,rgba(255,255,255,.05) 0%,rgba(16,30,52,.38) 22%,rgba(12,24,44,.52) 55%,rgba(8,18,34,.62) 100%);z-index:0}
/* 联系我们区块：磨砂噪点层（半透明） */
.cb-band::after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E");opacity:.65;mix-blend-mode:overlay}
.cb-band .container{position:relative;z-index:1}
.cb-index{background-image:url(../img/contact-reception.jpg)}
.cb-media{background-image:url(../img/cd-navy-bg.jpg)}
.cb-business{background-image:url(../img/contact-wall.jpg)}
.cb-about{background-image:url(../img/about-pattern.jpg)}
.cb-band .sec-head h2{color:#fff}
.cb-band .sec-head .line{background:#c9a227}
.cb-band .sec-head .sub{color:#ece7da}
.cb-band .cb-item{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);border-left:3px solid #c9a227;backdrop-filter:blur(9px)}
.cb-band .cb-item .ic{font-size:34px;color:#e8c766}
.cb-band .cb-item h3{font-size:19px;color:#fff;margin-bottom:8px}
.cb-band .cb-item p{color:#f2efe6;font-size:17px}

/* 联系我们页首屏：背景图 + 半透明遮罩 */
.contact-hero{background:linear-gradient(120deg,rgba(13,25,45,.38),rgba(13,25,45,.62)),url(../img/contact-aerial.jpg);background-size:cover;background-position:center;background-blend-mode:overlay}
/* 联系我们首屏：背景图朦胧(模糊)磨砂处理，与页面背景一致 */
.contact-hero::before{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(rgba(13,25,45,.48),rgba(13,25,45,.62)),url(../img/contact-aerial.jpg) center/cover no-repeat;background-blend-mode:overlay;filter:none;transform:scale(1.15)}
.contact-hero .container{position:relative;z-index:1}

/* 第5页关于我们首屏：背景图 + 半透明 */
.about-hero{background:linear-gradient(120deg,rgba(13,25,45,.38),rgba(13,25,45,.62)),url(../img/contact-entry.jpg);background-size:cover;background-position:center;background-blend-mode:overlay}
/* 关于我们首屏：背景图朦胧(模糊)磨砂处理 */
.about-hero{position:relative}
.about-hero::before{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(rgba(13,25,45,.48),rgba(13,25,45,.62)),url(../img/contact-entry.jpg) center/cover no-repeat;background-blend-mode:overlay;filter:none;transform:scale(1.15)}
.about-hero .container{position:relative;z-index:1}


/* ===== 首页背景：VCG 图模糊磨砂版 + 半透明深蓝遮罩 + 磨砂 ===== */
body.page-home{
  background-image:linear-gradient(rgba(15,29,51,.55),rgba(15,29,51,.42)),url(../img/vcg-home-blur.webp);
  background-size:cover;background-position:center;background-attachment:fixed;
}
body.page-home::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E");
  opacity:.4;mix-blend-mode:overlay;
}
/* 首页浅色区块半透明，让深蓝背景透出 */
/* 统一 90% 不透明 + 毛玻璃磨砂（朦胧） */
body.page-home .section.gray{background:rgba(247,249,252,.4);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
/* ===== 关于我们整页背景：578907654320 图 + 半透明深蓝遮罩 + 磨砂 ===== */
body.page-about{
  background-image:linear-gradient(rgba(15,29,51,.66),rgba(15,29,51,.54)),url(../img/about-bg.jpg);
  background-size:cover;background-position:center;background-attachment:fixed;background-color:#0d192d;
}
body.page-about::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E");
  opacity:.4;mix-blend-mode:overlay;
}
/* 浅色区块半透明，让深蓝背景图透出 */
body.page-about .section{background:rgba(255,255,255,.4);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
body.page-about .section.gray{background:rgba(247,249,252,.4);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
/* ===== 联系我们整页背景：134202822649 图 + 半透明深蓝遮罩 + 磨砂 ===== */
body.page-contact{
  background-image:linear-gradient(rgba(15,29,51,.66),rgba(15,29,51,.52)),url(../img/contact-bg.jpg);
  background-size:cover;background-position:center;background-attachment:fixed;background-color:#0d192d;
}
body.page-contact::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E");
  opacity:.4;mix-blend-mode:overlay;
}
/* 浅色区块半透明，让背景图透出；表单卡片保持可读 */
body.page-contact .section{background:rgba(255,255,255,.4);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
body.page-contact .form-card{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
/* 移动端：fixed 背景图在 iOS 易闪屏/卡顿，改为随页面滚动 */
@media(max-width:768px){
  body.page-about,body.page-contact{background-attachment:scroll}
}


/* ===== 广告传媒服务区块：深蓝背景图 + 半透明磨砂 ===== */
.media-service{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.30'/%3E%3C/svg%3E"),
    linear-gradient(rgba(255,255,255,.4),rgba(255,255,255,.4)),
    url(../img/media-service-bg.jpg);
  background-size:150px 150px, cover, cover;
  background-position:center;
}

/* ===== 关于我们页脚"联系我们"CTA：背景图做成与首屏同款模糊磨砂 ===== */
.cb-about::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(rgba(23,45,80,.5),rgba(13,22,40,.6)),url(../img/about-pattern.jpg) center/cover no-repeat;
  background-blend-mode:overlay;filter:none;transform:scale(1.15);
}

/* ===== 项目服务首屏：背景图做成与"关于我们"首屏同款模糊磨砂 ===== */
.biz-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(rgba(23,45,80,.5),rgba(13,22,40,.6)),url(../img/banner1.png) center/cover no-repeat;
  background-blend-mode:overlay;filter:none;transform:scale(1.15);
}

/* ===== 广告传媒首屏：背景图做成与"关于我们"首屏同款模糊磨砂 ===== */
.media-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(rgba(23,45,80,.5),rgba(13,22,40,.6)),url(../img/media-hero.jpg) center/cover no-repeat;
  background-blend-mode:overlay;filter:none;transform:scale(1.15);
}

/* 首屏文字置顶，避免被模糊背景层盖住（项目服务/广告传媒） */
.biz-hero .container,.media-hero .container{position:relative;z-index:1}

/* ===== 关于我们页正文文字加深，提升可读性 ===== */
body.page-about .about-intro p,
body.page-about .value-item p,
body.page-about .sec-head .sub{color:var(--navy)}

/* ===== 广告传媒页正文浅色文字加深，提升可读性 ===== */
.media-service .svc-head p,
.media-service .sec-head .sub,
.media-service .two-col ul li{color:#39424e}

/* ===== 首页"联系我们"CTA：背景图做成与广告传媒首屏同款模糊磨砂 ===== */
.cb-index::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(rgba(23,45,80,.5),rgba(13,22,40,.6)),url(../img/contact-reception.jpg) center/cover no-repeat;
  background-blend-mode:overlay;filter:none;transform:scale(1.15);
}

/* ========== 景深动效：内容展示图片缓慢缩放(Ken Burns) ========== */
.gallery-grid,.gallery2,.adv-item,.stage,.about-intro>div:nth-child(2){overflow:hidden}
.biz-card img,
.case-card img,
.adv-item img,
.stage img,
.gallery-grid img,
.gallery2 img,
.page-hero img{
  animation:kbCard 10s ease-in-out infinite alternate;
  transform-origin:center;
  will-change:transform;
  backface-visibility:hidden;
}
@keyframes kbCard{from{transform:scale(1)}to{transform:scale(1.22)}}
/* 画廊/团队图：按位次变换缩放中心，增强纵深层次 */
.gallery-grid img:nth-child(1),.gallery2 img:nth-child(1){transform-origin:left center}
.gallery-grid img:nth-child(2),.gallery2 img:nth-child(2){transform-origin:right center}
.gallery-grid img:nth-child(3),.gallery2 img:nth-child(3){transform-origin:center top}
.gallery-grid img:nth-child(4),.gallery2 img:nth-child(4){transform-origin:center bottom}
/* 资质证书图：轻柔动效(不裁证书文字) + 点击放大 */
.about-intro img{animation:kbCardSoft 14s ease-in-out infinite alternate;transform-origin:center;will-change:transform;cursor:zoom-in}
@keyframes kbCardSoft{from{transform:scale(1)}to{transform:scale(1.10)}}
/* 小尺寸装饰图标不参与动效 */
.svc-head img{animation:none}
@media (prefers-reduced-motion:reduce){.biz-card img,.case-card img,.adv-item img,.stage img,.gallery-grid img,.gallery2 img,.about-intro img,.page-hero img{animation:none}}

/* ========== 资质/证书图 点击放大(Lightbox) ========== */
.cert-zoom{display:block;text-decoration:none;transition:.2s}
.cert-zoom:hover{opacity:.92}
.zoom-lightbox{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center;background:rgba(10,18,30,.88);cursor:zoom-out;padding:20px}
.zoom-lightbox.show{display:flex}
.zoom-lightbox img{max-width:94vw;max-height:92vh;object-fit:contain;border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,.6);background:#fff;padding:10px}
.zoom-lightbox .zl-close{position:absolute;top:16px;right:22px;color:#fff;font-size:44px;line-height:1;cursor:pointer;font-weight:300}

/* ========== 首页：首屏大图贴满顶部全屏，透明导航栏悬浮其上 ========== */
body.page-home{padding-top:0}
body.page-home .site-main{padding-top:0}
body.page-home .hero{height:100vh;min-height:600px}

/* ========== 其它页面：顶部横幅图也贴满最顶，透明导航悬浮(与首页一致) ========== */
body .page-hero{margin-top:-72px}

/* ========== 全站整页背景统一为"联系我们"样式（深色航拍图 + 区块半透明毛玻璃） ========== */
body.site-bg{
  background-image:linear-gradient(rgba(15,29,51,.66),rgba(15,29,51,.52)),url(../img/contact-bg.jpg);
  background-size:cover;background-position:center;background-attachment:fixed;background-color:#0d192d;
}
body.site-bg .section{background:rgba(255,255,255,.42);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
body.site-bg .section.gray{background:rgba(247,249,252,.42);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
body.site-bg .form-card{background:rgba(255,255,255,.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
@media(max-width:768px){body.site-bg{background-attachment:scroll}}

/* ===== 广告传媒：行业痛点/解决大区块 白色底改透明深底 + 文字浅色清晰 ===== */
.media-service .svc{background:rgba(13,25,45,.35);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:14px;margin-bottom:28px;padding-left:28px;padding-right:28px}
.media-service .svc-head h3{color:#ffffff}
.media-service .svc-head p,.media-service .two-col ul li{color:#e2e9f2}
.media-service .two-col ul li b{color:#f2d78b}
.media-service .two-col ul li{border-bottom-color:rgba(255,255,255,.16)}
.media-service .col-tag.pain{background:rgba(239,106,127,.20);color:#ff98a6}
.media-service .col-tag.sol{background:rgba(63,191,135,.20);color:#8fe0b4}
.media-service .two-col ul li::before{background:#ff8594}
.media-service .two-col ul.sol li::before{background:#3fbf87}

/* ===== 除首页外，其余页面第一个大区块 统一为"业绩案例"式 纯深蓝渐变横幅(去背景图) ===== */
.page-hero.about-hero,
.page-hero.contact-hero,
.page-hero.media-hero,
.page-hero.biz-hero{
  background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 100%)!important;
  background-size:cover!important;
  background-position:center!important;
}
.page-hero.about-hero::before,
.page-hero.contact-hero::before,
.page-hero.media-hero::before,
.page-hero.biz-hero::before{display:none!important}
.page-hero.about-hero .container,
.page-hero.contact-hero .container,
.page-hero.media-hero .container,
.page-hero.biz-hero .container{position:relative;z-index:2}

/* ===== 项目服务：1-6阶段区块 半透明深色底 + 浅色文字(透出深色背景,清晰美观) ===== */
.stage{background:rgba(13,25,45,.35);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14);color:#e2e9f2}
.stage-num{background:transparent;color:#f2d78b;border-color:rgba(242,215,139,.6)}
.stage-h h3{color:#ffffff}
.stage-h p{color:#ffb4a0}
.stage h4{color:#e6eef7}
.stage ul li{color:#dfe8f1}
.stage ul li::before{color:#ff8594}
.stage .pain-desc{background:rgba(255,255,255,.08);border-left:3px solid #ff8594;color:#f2e8df}

/* 电话/数字 等宽对齐 */
.footer-contact li,.cb-item p{font-variant-numeric:tabular-nums;-webkit-font-feature-settings:"tnum"}

/* ===== 首页底部"资质/信赖"区块：4块链接化 + 首块证书双图轮播(景深) ===== */
a.adv-item{display:block;text-decoration:none;color:inherit}
a.adv-item h3{color:var(--navy)}
.adv-item .kbs{position:relative;width:100%;height:110px;border-radius:8px;overflow:hidden;margin-bottom:12px}
.adv-item .kbs img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:8px}
.adv-item .kbs .a{animation:kbsA 12s infinite;opacity:1}
.adv-item .kbs .b{animation:kbsB 12s infinite;opacity:0}
@keyframes kbsA{
  0%{opacity:1;transform:scale(1)}
  40%{opacity:1;transform:scale(1.10)}
  46%{opacity:0;transform:scale(1.13)}
  100%{opacity:0;transform:scale(1.13)}
}
@keyframes kbsB{
  0%{opacity:0;transform:scale(1.04)}
  40%{opacity:0;transform:scale(1.04)}
  46%{opacity:1;transform:scale(1.04)}
  96%{opacity:1;transform:scale(1.13)}
  100%{opacity:0;transform:scale(1.13)}
}
@media (prefers-reduced-motion:reduce){.adv-item .kbs img{animation:none}.adv-item .kbs .a{opacity:1}.adv-item .kbs .b{opacity:0}}