/* ============================================================
   铭远传媒官网 · 共享样式
   配色：墨绿 #0e2a22 / 次绿 #1a4536 / 金色 #c8a25c / 象牙 #f8f5ef
   ============================================================ */
:root{
  --navy:#0e2a22;
  --navy-2:#14342b;
  --navy-3:#1a4536;
  --cyan:#c8a25c;
  --cyan-soft:rgba(200,162,92,.14);
  --green:#a88a4a;
  --ink:#1a2a18;
  --text:#334036;
  --muted:#6f7a6c;
  --line:#e8e4da;
  --bd:#e8e4da;
  --bg:#f8f5ef;
  --bg-alt:#f0ebe1;
  --white:#fff;
  --radius:14px;
  --shadow:0 6px 24px rgba(14,42,34,.08);
  --shadow-lg:0 12px 40px rgba(14,42,34,.14);
  --container:1180px;
  --header-h:64px;
  --primary:var(--cyan);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  color:var(--text);background:var(--white);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:10px;font-weight:600;font-size:15px;transition:.2s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--cyan);color:#fff}
.btn-primary:hover{background:#b08d4a;transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,162,92,.35)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-nav{background:var(--cyan);color:#fff;padding:9px 18px;font-size:14px;white-space:nowrap}
.btn-nav:hover{background:#b08d4a}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px)}

/* ---------- 顶部导航 ---------- */
.header{position:sticky;top:0;z-index:50;background:var(--navy);box-shadow:0 2px 12px rgba(0,0,0,.18)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:11px;color:#fff;height:44px}
.brand .logo{width:auto;height:44px;flex-shrink:0;display:block}
.brand>div{display:flex;flex-direction:column;justify-content:center;height:44px}
.brand .name{font-size:18px;font-weight:700;line-height:1.25;margin-bottom:2px}
.brand .sub{font-size:11px;color:#9fb3c8;font-weight:400;line-height:1.2}
.menu{display:flex;align-items:center;gap:4px;height:var(--header-h)}
.menu a{padding:8px 16px;color:#cdd8e6;font-size:15px;border-radius:8px;transition:.2s;line-height:1.4;display:flex;align-items:center}
.menu a:hover,.menu a.active{color:#fff;background:rgba(255,255,255,.08)}
.nav-right{display:flex;align-items:center;gap:14px;height:var(--header-h)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.mobile-menu{display:none;background:var(--navy-2);padding:8px 16px 16px}
.mobile-menu a{display:block;padding:12px 8px;color:#cdd8e6;border-bottom:1px solid rgba(255,255,255,.07);font-size:15px}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#091e18 0%,#14342b 55%,#0c251f 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(200,162,92,.28),transparent 70%)}
.hero-inner{position:relative;z-index:2;padding:76px 0 84px}
.hero .badge{display:inline-block;background:var(--cyan-soft);color:var(--cyan);font-size:13px;padding:6px 14px;border-radius:30px;margin-bottom:18px;border:1px solid rgba(200,162,92,.3)}
.hero h1{font-size:42px;line-height:1.3;font-weight:800;margin-bottom:18px}
.hero h1 .hl{color:var(--cyan)}
.hero p.lead{font-size:17px;color:#c5d2e2;max-width:640px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.hero-tags span{font-size:13px;background:rgba(255,255,255,.1);padding:7px 14px;border-radius:8px;color:#dbe5f0}

/* ---------- 区块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head .eyebrow{color:var(--cyan);font-weight:700;font-size:14px;letter-spacing:1px}
.sec-head h2{font-size:30px;color:var(--ink);margin:10px 0 12px;font-weight:800}
.sec-head p{color:var(--muted);font-size:15px}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}

.feature{display:flex;gap:16px;align-items:flex-start;padding:6px}
.feature .ic{width:52px;height:52px;border-radius:12px;background:var(--cyan-soft);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.feature .t{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:4px}
.feature .d{font-size:14px;color:var(--muted)}

/* 服务卡 */
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:.25s;box-shadow:var(--shadow)}
.svc-card:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:var(--shadow-lg)}
.svc-card .ic{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.svc-card .t{font-size:18px;font-weight:700;color:var(--ink)}
.svc-card .d{font-size:14px;color:var(--muted);margin-top:8px}
.svc-card .tags{margin-top:14px;display:flex;gap:7px;flex-wrap:wrap}
.svc-card .tags span{font-size:12px;background:var(--bg);color:var(--text);padding:4px 10px;border-radius:6px}

/* 案例卡 */
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.25s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-card .top{height:150px;background:linear-gradient(135deg,var(--navy),var(--navy-3));position:relative;display:flex;align-items:center;justify-content:center}
.case-card .top .big{font-size:46px;opacity:.9}
.case-card .body{padding:22px}
.case-card .ct{font-size:18px;font-weight:700;color:var(--ink)}
.case-card .cd{font-size:14px;color:var(--muted);margin-top:8px}
.case-card .tag{display:inline-block;margin-top:12px;font-size:12px;color:var(--cyan);background:var(--cyan-soft);padding:4px 11px;border-radius:6px}

/* 统计条 */
.stats{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff}
.stats .grid{text-align:center}
.stat .num{font-size:40px;font-weight:800;color:var(--cyan);line-height:1}
.stat .lbl{font-size:14px;color:#c5d2e2;margin-top:8px}

/* 客户墙 */
.clients{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.clients span{background:#fff;border:1px solid var(--line);color:var(--text);padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;box-shadow:var(--shadow)}

/* 城市覆盖 */
.coverage{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.coverage .col h4{font-size:16px;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.coverage .col h4::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan)}
.coverage .col ul{list-style:none}
.coverage .col li{padding:7px 0;color:var(--text);font-size:14px;border-bottom:1px dashed var(--line)}
.coverage .col li:last-child{border-bottom:none}

/* CTA */
.cta{background:linear-gradient(135deg,var(--navy-2),var(--navy));color:#fff;text-align:center;border-radius:var(--radius);padding:54px 24px;box-shadow:var(--shadow-lg)}
.cta h2{font-size:28px;margin-bottom:12px}
.cta p{color:#c5d2e2;margin-bottom:26px;font-size:16px}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy);color:#9fb3c8;padding:48px 0 24px;font-size:14px}
.footer .grid{margin-bottom:30px}
.footer .f-brand .logo{width:44px;height:44px;border-radius:10px;background:var(--cyan);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{color:#9fb3c8;display:block;padding:5px 0;transition:.2s}
.footer a:hover{color:var(--cyan)}
.footer .f-contact p{margin:6px 0;color:#c5d2e2}
.footer .copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;color:#6a788c;font-size:13px}

/* ---------- 内页通用 ---------- */
.page-hero{background:linear-gradient(135deg,#16223c,#243a63);color:#fff;padding:54px 0}
.page-hero h1{font-size:34px;font-weight:800;margin-bottom:10px}
.page-hero p{color:#c5d2e2;font-size:16px;max-width:680px}
.breadcrumb{font-size:13px;color:var(--cyan);margin-bottom:14px}
.breadcrumb a:hover{text-decoration:underline}

/* 关于时间线 */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.timeline li{position:relative;list-style:none;padding:0 0 26px 0}
.timeline li::before{content:"";position:absolute;left:-25px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--cyan);border:3px solid #fff;box-shadow:0 0 0 2px var(--cyan)}
.timeline .y{font-weight:700;color:var(--ink)}
.timeline .x{color:var(--muted);font-size:14px;margin-top:2px}

/* 联系方式块 */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:30px}
.contact-card{background:var(--bg);border-radius:var(--radius);padding:26px;display:flex;gap:16px;align-items:center;margin-bottom:16px}
.contact-card .ic{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;flex-shrink:0}
.contact-card.call .ic{background:var(--green)}
.contact-card.nav .ic{background:var(--cyan)}
.contact-card.wx .ic{background:#3a8ee6}
.contact-card .t{font-size:17px;font-weight:700;color:var(--ink)}
.contact-card .v{font-size:14px;color:var(--muted);margin-top:2px}
.map-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 18px rgba(26,39,68,.06)}
.map-card .map-img{height:240px;background:var(--bg-alt);display:flex;align-items:center;justify-content:center}
.map-card .map-img img{width:100%;height:100%;object-fit:cover}
.map-card .map-info{padding:20px;font-size:14px;color:var(--ink);line-height:1.7}
.map-card .map-info strong{color:var(--primary)}

/* 面包屑按钮 */
.text-link{color:var(--cyan);font-weight:600}
.text-link:hover{text-decoration:underline}

/* 提示 toast */
.toast{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(26,39,68,.95);color:#fff;padding:14px 22px;border-radius:10px;font-size:14px;z-index:99;opacity:0;transition:opacity .25s;pointer-events:none;text-align:center}
.toast.show{opacity:1}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
  .grid-5{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .menu,.nav-right .btn-nav{display:none}
  .hamburger{display:flex}
  .grid-5{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:30px}
  .hero{padding-bottom:40px}
  .hero-inner{padding:50px 0 56px}
  .sec-head h2{font-size:24px}
  .section{padding:52px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .wrap{padding:0 18px}
  .footer .grid{grid-template-columns:1fr 1fr}
  .hero-actions .btn{flex:1;justify-content:center}
}
@media(max-width:480px){
  .footer .grid{grid-template-columns:1fr}
  .brand .name{font-size:16px}
  .brand .sub{font-size:10px}
  .brand .logo{height:38px}
  .brand,.brand>div{height:38px}
}

/* ---------- 客户LOGO墙 ---------- */
.logo-wall{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.logo-cell{background:#fff;border:1px solid var(--bd);border-radius:12px;height:96px;display:flex;align-items:center;justify-content:center;padding:14px;transition:.25s}
.logo-cell:hover{box-shadow:0 8px 24px rgba(26,39,68,.12);transform:translateY(-3px)}
.logo-cell img{max-width:100%;max-height:64px;object-fit:contain}
.logo-cell.empty{color:#9fb3c8;font-size:13px;flex-direction:column;gap:4px}

/* ---------- 活动照片墙 ---------- */
.gallery{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.gallery a{display:block;border-radius:12px;overflow:hidden;position:relative;aspect-ratio:3/2;background:var(--bg-alt)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.3s}
.gallery a:hover img{transform:scale(1.05)}
.gallery .cap{position:absolute;left:0;right:0;bottom:0;padding:10px 12px;color:#fff;font-size:13px;background:linear-gradient(transparent,rgba(26,39,68,.78))}

/* ---------- 活动介绍卡（带图） ---------- */
.act-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:30px}
.act-card{display:flex;gap:0;background:#fff;border:1px solid var(--bd);border-radius:14px;overflow:hidden;align-items:stretch}
.act-thumb{flex:0 0 150px;position:relative;background:var(--bg-alt);overflow:hidden}
.act-thumb img{width:100%;height:100%;object-fit:cover;transition:.3s}
.act-card:hover .act-thumb img{transform:scale(1.05)}
.act-thumb-tag{position:absolute;left:10px;top:10px;background:var(--navy);color:#fff;font-size:12px;font-weight:700;padding:5px 10px;border-radius:20px;line-height:1.3}
.act-body{padding:22px;display:flex;flex-direction:column;justify-content:center}
.act-body .at{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px}
.act-body .ad{font-size:14px;color:var(--muted);line-height:1.7}

@media(max-width:980px){
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .act-list{grid-template-columns:1fr}
  .act-card{flex-direction:column}
  .act-thumb{flex:none;height:160px;width:100%}
}

/* ===== 广告制作案例 ===== */
.ad-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 22px}
.ad-tab{padding:9px 20px;border-radius:40px;background:#fff;border:1px solid var(--bd);color:var(--muted);font-size:14px;font-family:inherit;cursor:pointer;transition:.2s;line-height:1.3}
.ad-tab:hover{border-color:var(--gold);color:var(--gold)}
.ad-tab.on{background:var(--navy);border-color:var(--navy);color:var(--gold);font-weight:700}
.ad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ad-item{margin:0;background:#fff;border:1px solid var(--bd);border-radius:14px;overflow:hidden;transition:.25s}
.ad-item:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(14,42,34,.12);border-color:var(--gold)}
.ad-item img{width:100%;aspect-ratio:3/2;object-fit:cover;display:block;background:var(--bg-alt)}
.ad-item figcaption{padding:13px 15px 15px}
.ad-item .ad-tag{display:inline-block;font-size:12px;color:var(--gold);background:rgba(200,162,92,.14);padding:3px 10px;border-radius:20px;margin-bottom:7px}
.ad-item .ad-tx{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.ad-item.hide{display:none}
@media(max-width:980px){.ad-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.ad-grid{grid-template-columns:1fr}.ad-tab{padding:8px 15px;font-size:13px}}