/* ============================================================
   恒彩印艺 · 广告印刷公司官网 — 全局样式表
   设计系统：墨蓝 Ink / 青色 Cyan / 品红 Magenta / 纸张 Paper
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root{
  --ink:#0F1D30;
  --ink-2:#16273E;
  --ink-3:#22344F;
  --cyan:#0E9BE0;
  --cyan-dark:#0B7EB8;
  --magenta:#E4237E;
  --yellow:#F2B705;
  --paper:#F6F3EC;
  --paper-2:#EFE9DD;
  --line:#E3DDD0;
  --text:#3D4A5C;
  --muted:#7A8594;
  --white:#FFFFFF;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 12px 34px rgba(15,29,48,.10);
  --shadow-lg:0 22px 60px rgba(15,29,48,.16);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  --font-en:"Montserrat","Helvetica Neue",Arial,sans-serif;
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-cn);
  font-size:16px;line-height:1.75;color:var(--text);
  background:var(--white);-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:rgba(14,155,224,.22)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section.paper-bg{background:var(--paper)}
.section.dark{background:linear-gradient(160deg,var(--ink) 0%,var(--ink-2) 100%);color:#E9EEF5}

/* 区块头 */
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:2px}
.sec-head.center .kicker::after{content:"";width:22px;height:2px;background:var(--cyan);border-radius:2px}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;color:var(--ink);line-height:1.25;letter-spacing:1px}
.dark .sec-head h2{color:var(--white)}
.sec-head p{margin-top:14px;font-size:15.5px;color:var(--muted)}
.dark .sec-head p{color:#A9B7C9}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;
  transition:all .25s ease;white-space:nowrap;
}
.btn svg{width:17px;height:17px;transition:transform .25s ease}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--cyan);color:#fff;box-shadow:0 8px 22px rgba(14,155,224,.32)}
.btn-primary:hover{background:var(--cyan-dark);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.75);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-outline{border:1.5px solid var(--cyan);color:var(--cyan)}
.btn-outline:hover{background:var(--cyan);color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-3);transform:translateY(-2px)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:#B9C6D6;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar-group{display:flex;gap:22px;align-items:center}
.topbar a{display:inline-flex;align-items:center;gap:7px;transition:color .2s}
.topbar a:hover{color:#fff}
.topbar svg{width:14px;height:14px;color:var(--cyan)}

/* ---------- 主头部 ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s ease}
.header.scrolled{box-shadow:0 8px 30px rgba(15,29,48,.10)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo img{height:40px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 15px;font-size:15px;font-weight:600;color:var(--ink-2);
  border-radius:8px;transition:color .2s;
}
.nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;
  background:var(--cyan);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav a:hover{color:var(--cyan)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--cyan)}
.header-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.header-cta .btn{padding:10px 24px;font-size:14px}
.burger{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;border:1px solid var(--line)}
.burger span{position:relative;display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,top .25s ease}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger.open span{background:transparent}
.burger.open span::before{top:0;transform:rotate(45deg)}
.burger.open span::after{top:0;transform:rotate(-45deg)}

/* ---------- 首页 Hero ---------- */
.hero{
  position:relative;min-height:min(80vh,720px);display:flex;align-items:center;
  background:linear-gradient(100deg,rgba(15,29,48,.93) 0%,rgba(15,29,48,.68) 42%,rgba(15,29,48,.30) 100%),url("../assets/images/hero.jpg") center/cover no-repeat;
  color:#fff;overflow:hidden;
}
.hero-inner{padding:96px 0 120px;max-width:760px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--font-en);
  font-size:13px;font-weight:700;letter-spacing:3px;color:#8FD2F5;text-transform:uppercase;
  margin-bottom:22px;
}
.hero-kicker::before{content:"";width:34px;height:2px;background:var(--cyan)}
.hero h1{font-size:clamp(34px,5vw,56px);font-weight:800;line-height:1.18;letter-spacing:2px;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--yellow)}
.hero p{font-size:clamp(15px,1.6vw,17.5px);color:#D5DEEA;max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:40px}
.hero-chips span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#C6D2E1}
.hero-chips svg{width:15px;height:15px;color:var(--yellow)}
.hero-arrow{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:#C6D2E1;animation:bob 2.2s ease-in-out infinite}
.hero-arrow svg{width:26px;height:26px}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* 数据条 */
.stats{position:relative;z-index:5;margin-top:-64px;padding-bottom:84px}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.stat{background:#fff;padding:30px 24px;text-align:center}
.stat b{
  display:block;font-family:var(--font-en);font-size:clamp(30px,3.6vw,42px);font-weight:800;
  color:var(--ink);line-height:1.1;
}
.stat b i{font-style:normal;color:var(--cyan);font-size:.62em;font-weight:800;margin-left:2px}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- 通用区块 ---------- */
.two-col{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.two-col.rev .media{order:2}
.media{position:relative}
.media img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;object-fit:cover}
.media .badge{
  position:absolute;left:20px;bottom:-20px;background:var(--ink);color:#fff;
  padding:18px 26px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);
  display:flex;align-items:center;gap:14px;
}
.media .badge b{font-family:var(--font-en);font-size:34px;font-weight:800;color:var(--yellow);line-height:1}
.media .badge span{font-size:13px;color:#C6D2E1;line-height:1.4}
.text-block .kicker{margin-bottom:12px}
.text-block h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;color:var(--ink);line-height:1.3;letter-spacing:1px;margin-bottom:18px}
.text-block p{color:var(--muted);margin-bottom:14px}
.check-list{margin:22px 0 30px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);font-weight:500}
.check-list svg{width:20px;height:20px;color:var(--cyan);flex-shrink:0;margin-top:2px}

/* 服务卡片 */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.svc-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.svc-card .pic{position:relative;overflow:hidden;aspect-ratio:4/3}
.svc-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.svc-card:hover .pic img{transform:scale(1.06)}
.svc-card .pic::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(15,29,48,.45));
}
.svc-card .no{
  position:absolute;right:16px;top:14px;z-index:2;font-family:var(--font-en);
  font-size:15px;font-weight:800;color:#fff;background:rgba(15,29,48,.55);backdrop-filter:blur(4px);
  padding:4px 12px;border-radius:999px;letter-spacing:1px;
}
.svc-card .body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.svc-card .icon{width:46px;height:46px;border-radius:12px;background:rgba(14,155,224,.1);color:var(--cyan);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.svc-card .icon svg{width:24px;height:24px}
.svc-card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:8px}
.svc-card .body p{font-size:14.5px;color:var(--muted);margin-bottom:14px;flex:1}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.svc-tags span{font-size:12.5px;color:var(--ink-3);background:var(--paper);border:1px solid var(--line);padding:3px 11px;border-radius:999px}
.svc-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan)}
.svc-link svg{width:15px;height:15px;transition:transform .25s}
.svc-link:hover svg{transform:translateX(4px)}

/* 优势（深色区） */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feature{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius);padding:30px 28px;transition:background .3s ease,transform .3s ease;
}
.feature:hover{background:rgba(255,255,255,.09);transform:translateY(-4px)}
.feature .icon{width:52px;height:52px;border-radius:13px;background:rgba(14,155,224,.16);color:#5EC2F2;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.feature .icon svg{width:26px;height:26px}
.feature h3{font-size:17.5px;font-weight:700;color:#fff;margin-bottom:8px}
.feature p{font-size:14px;color:#A9B7C9}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:step}
.step{position:relative;text-align:center;padding:0 10px}
.step::before{
  content:"";position:absolute;top:34px;left:calc(50% + 46px);width:calc(100% - 92px);
  height:2px;background:repeating-linear-gradient(90deg,var(--cyan) 0 6px,transparent 6px 12px);
  opacity:.5;
}
.step:last-child::before{display:none}
.step .num{
  position:relative;z-index:2;width:68px;height:68px;margin:0 auto 18px;border-radius:50%;
  background:var(--white);border:2px solid var(--cyan);color:var(--cyan);
  font-family:var(--font-en);font-size:22px;font-weight:800;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);
}
.step h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:6px}
.step p{font-size:13.5px;color:var(--muted)}

/* 案例卡片 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-card .pic{position:relative;overflow:hidden;aspect-ratio:4/3}
.case-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.case-card:hover .pic img{transform:scale(1.06)}
.case-card .cat{
  position:absolute;left:16px;top:14px;z-index:2;font-size:12.5px;font-weight:600;color:#fff;
  background:var(--magenta);padding:4px 13px;border-radius:999px;
}
.case-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.case-card h3{font-size:17.5px;font-weight:700;color:var(--ink);margin-bottom:10px}
.case-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);margin-top:auto}
.case-meta li{display:inline-flex;align-items:center;gap:6px}
.case-meta svg{width:14px;height:14px;color:var(--cyan)}

/* 新闻卡片 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card .pic{overflow:hidden;aspect-ratio:16/9}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.news-card:hover .pic img{transform:scale(1.06)}
.news-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-card .meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);margin-bottom:10px}
.news-card .meta .tag{color:var(--cyan);font-weight:600}
.news-card h3{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:10px;transition:color .2s}
.news-card:hover h3{color:var(--cyan)}
.news-card p{font-size:13.5px;color:var(--muted);flex:1}
.news-card .date{margin-top:14px;font-family:var(--font-en);font-size:12.5px;color:#A5AEBB;letter-spacing:.5px}

/* CTA 横幅 */
.cta-band{background:linear-gradient(120deg,var(--ink) 0%,var(--ink-3) 100%);position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,155,224,.28),transparent 65%);
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-160px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(228,35,126,.20),transparent 65%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:58px 0;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;letter-spacing:1px;line-height:1.35}
.cta-inner p{color:#A9B7C9;margin-top:8px;font-size:14.5px}
.cta-inner .btn{flex-shrink:0}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;padding:84px 0 76px;color:#fff;
  background:linear-gradient(100deg,rgba(15,29,48,.92) 0%,rgba(15,29,48,.66) 45%,rgba(15,29,48,.38) 100%),url("../assets/images/banner.jpg") center/cover no-repeat;
}
.page-hero .kicker{color:#8FD2F5}
.page-hero .kicker::before{background:#8FD2F5}
.page-hero h1{font-size:clamp(30px,4vw,44px);font-weight:800;letter-spacing:2px;margin-bottom:12px}
.page-hero p{color:#C9D5E4;max-width:640px;font-size:15.5px}
.breadcrumb{display:flex;align-items:center;gap:8px;margin-top:20px;font-size:13.5px;color:#9FB0C4}
.breadcrumb a{color:#9FB0C4;transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb svg{width:13px;height:13px;opacity:.6}
.breadcrumb .cur{color:#fff}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#A9B7C9;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;padding:70px 0 50px}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--cyan);border-radius:2px}
.footer .brand p{margin:18px 0 22px;font-size:13.5px;line-height:1.9;color:#8FA0B5;max-width:300px}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-flex;align-items:center;gap:8px;transition:color .2s,transform .2s}
.footer-links a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan);flex-shrink:0}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-contact li{display:flex;gap:12px;margin-bottom:14px;align-items:flex-start}
.footer-contact svg{width:17px;height:17px;color:var(--cyan);flex-shrink:0;margin-top:4px}
.footer-contact a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#76879C}
.footer-bottom .en{font-family:var(--font-en);letter-spacing:1.5px;text-transform:uppercase}

/* ---------- 关于页 ---------- */
.timeline{position:relative;max-width:860px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:118px;top:10px;bottom:10px;width:2px;background:var(--line)}
.tl-item{position:relative;display:grid;grid-template-columns:120px 70px 1fr;gap:18px;padding:26px 0}
.tl-item::before{
  content:"";position:absolute;left:118px;top:36px;width:13px;height:13px;border-radius:50%;
  background:#fff;border:3px solid var(--cyan);transform:translateX(-50%);z-index:2;
}
.tl-item .year{font-family:var(--font-en);font-size:22px;font-weight:800;color:var(--ink);line-height:1.2;text-align:right;padding-top:2px}
.tl-item .dot{position:relative}
.tl-item h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--muted)}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cert{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;text-align:center;
  transition:transform .3s ease,box-shadow .3s ease;
}
.cert:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cert .icon{width:48px;height:48px;margin:0 auto 14px;border-radius:12px;background:rgba(14,155,224,.1);color:var(--cyan);display:flex;align-items:center;justify-content:center}
.cert .icon svg{width:24px;height:24px}
.cert h3{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:6px}
.cert p{font-size:12.5px;color:var(--muted)}

/* ---------- 服务详情块 ---------- */
.svc-block{display:grid;grid-template-columns:1fr 1.15fr;gap:52px;align-items:center;padding:40px 0}
.svc-block + .svc-block{border-top:1px solid var(--line)}
.svc-block.rev .media{order:2}
.svc-block .media img{aspect-ratio:4/3;object-fit:cover}
.svc-block h3{font-size:24px;font-weight:800;color:var(--ink);margin:6px 0 12px;letter-spacing:1px}
.svc-block .lead{font-size:15px;color:var(--muted);margin-bottom:18px}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:22px}
.spec-grid li{
  display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text);
  background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:9px 14px;
}
.spec-grid svg{width:16px;height:16px;color:var(--cyan);flex-shrink:0}

/* ---------- 案例筛选 ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:44px}
.filter-btn{
  padding:9px 22px;border-radius:999px;border:1.5px solid var(--line);font-size:14px;font-weight:600;
  color:var(--muted);background:#fff;transition:all .25s ease;
}
.filter-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.filter-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}
.case-grid .case-card{transition:opacity .3s ease,transform .3s ease,box-shadow .3s ease}
.case-grid .case-card.hide{display:none}

/* ---------- 设备页 ---------- */
.equip-row{display:grid;grid-template-columns:1fr 1.2fr;gap:52px;align-items:center;padding:40px 0}
.equip-row + .equip-row{border-top:1px solid var(--line)}
.equip-row.rev .media{order:2}
.equip-row .media img{aspect-ratio:4/3;object-fit:cover}
.equip-row h3{font-size:23px;font-weight:800;color:var(--ink);margin:6px 0 8px}
.equip-row .en-name{font-family:var(--font-en);font-size:12px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase}
.equip-row p{font-size:14.5px;color:var(--muted);margin:12px 0 18px}
.spec-table{width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.spec-table tr{border-top:1px solid var(--line)}
.spec-table tr:first-child{border-top:none}
.spec-table th,.spec-table td{padding:11px 16px;font-size:13.5px;text-align:left}
.spec-table th{width:30%;background:var(--paper);color:var(--ink-2);font-weight:600;white-space:nowrap}
.spec-table td{color:var(--text)}

/* ---------- 新闻列表与详情 ---------- */
.news-layout{display:grid;grid-template-columns:1fr 330px;gap:48px;align-items:start}
.news-list .news-item{
  display:grid;grid-template-columns:270px 1fr;gap:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;margin-bottom:24px;
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-item .pic{overflow:hidden;position:relative}
.news-item .pic img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s ease}
.news-item:hover .pic img{transform:scale(1.05)}
.news-item .body{padding:22px 26px 22px 0;display:flex;flex-direction:column}
.news-item .meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);margin-bottom:10px}
.news-item .meta .tag{color:var(--cyan);font-weight:600}
.news-item h3{font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:10px;transition:color .2s}
.news-item:hover h3{color:var(--cyan)}
.news-item p{font-size:14px;color:var(--muted);flex:1}
.news-item .date{margin-top:14px;font-family:var(--font-en);font-size:12.5px;color:#A5AEBB}
.sidebar .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:24px}
.sidebar h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:18px;position:relative;padding-bottom:10px}
.sidebar h3::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--cyan)}
.side-list li{border-bottom:1px dashed var(--line);padding:12px 0}
.side-list li:last-child{border-bottom:none;padding-bottom:0}
.side-list a{font-size:14px;color:var(--text);line-height:1.55;display:block;transition:color .2s}
.side-list a:hover{color:var(--cyan)}
.side-list .d{font-size:12px;color:#A5AEBB;margin-top:4px;font-family:var(--font-en)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{font-size:12.5px;color:var(--ink-3);background:var(--paper);border:1px solid var(--line);padding:4px 13px;border-radius:999px;transition:all .2s}
.side-tags a:hover{background:var(--cyan);color:#fff;border-color:var(--cyan)}
.side-contact{background:linear-gradient(140deg,var(--ink),var(--ink-3));color:#C6D2E1;border:none}
.side-contact h3{color:#fff}
.side-contact h3::after{background:var(--yellow)}
.side-contact .tel{font-family:var(--font-en);font-size:24px;font-weight:800;color:var(--yellow);margin:6px 0 14px}
.side-contact p{font-size:13px;line-height:1.8}

/* 文章详情 */
.article{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:48px;box-shadow:var(--shadow)}
.article h1{font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--ink);line-height:1.4;letter-spacing:1px;margin-bottom:18px}
.article .meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted);padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:28px}
.article .meta span{display:inline-flex;align-items:center;gap:7px}
.article .meta svg{width:14px;height:14px;color:var(--cyan)}
.article .cover{border-radius:var(--radius-sm);margin-bottom:30px;width:100%;aspect-ratio:16/7;object-fit:cover}
.article h2{font-size:21px;font-weight:700;color:var(--ink);margin:30px 0 14px}
.article p{font-size:15.5px;color:var(--text);margin-bottom:16px;line-height:2}
.article .tip{
  background:var(--paper);border-left:4px solid var(--cyan);border-radius:0 10px 10px 0;
  padding:16px 20px;font-size:14px;color:var(--ink-2);margin:22px 0;
}
.article ul{padding-left:22px;margin-bottom:16px}
.article ul li{list-style:disc;color:var(--text);font-size:15px;margin-bottom:8px;line-height:1.9}
.article-nav{max-width:820px;margin:34px auto 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.article-nav a{
  font-size:13.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;
  padding:9px 20px;transition:all .25s ease;max-width:48%;
}
.article-nav a:hover{color:var(--cyan);border-color:var(--cyan)}

/* ---------- 联系页 ---------- */
.contact-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center;
  transition:transform .3s ease,box-shadow .3s ease;
}
.contact-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.contact-card .icon{width:54px;height:54px;margin:0 auto 16px;border-radius:14px;background:rgba(14,155,224,.1);color:var(--cyan);display:flex;align-items:center;justify-content:center}
.contact-card .icon svg{width:26px;height:26px}
.contact-card h3{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:8px}
.contact-card p{font-size:13.5px;color:var(--muted);line-height:1.7}
.contact-card a{color:var(--cyan);font-weight:600}
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.contact-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px}
.contact-panel h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:20px;position:relative;padding-bottom:12px}
.contact-panel h3::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--cyan)}
.contact-panel p{font-size:14.5px;color:var(--muted);line-height:2}
.route-list{display:grid;gap:16px;margin-top:8px}
.route-list li{display:flex;gap:14px;align-items:flex-start}
.route-list .icon{width:40px;height:40px;flex-shrink:0;border-radius:10px;background:var(--paper);color:var(--cyan);display:flex;align-items:center;justify-content:center}
.route-list .icon svg{width:20px;height:20px}
.route-list b{display:block;font-size:15px;color:var(--ink);margin-bottom:3px}
.route-list span{font-size:13.5px;color:var(--muted)}

/* ---------- 返回顶部 / 滚动显现 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .3s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--cyan)}
.to-top svg{width:20px;height:20px}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .hero-arrow{animation:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .svc-grid,.case-grid,.news-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .contact-cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .step::before{display:none}
  .two-col,.svc-block,.equip-row{grid-template-columns:1fr;gap:36px}
  .two-col.rev .media,.svc-block.rev .media,.equip-row.rev .media{order:0}
  .footer-main{grid-template-columns:repeat(2,1fr);gap:36px}
  .news-layout{grid-template-columns:1fr}
  .nav{
    position:fixed;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:14px 24px 22px;gap:2px;
    transform:translateY(-16px);opacity:0;visibility:hidden;transition:all .3s ease;box-shadow:var(--shadow);
    max-height:calc(100vh - 76px);overflow:auto;
  }
  .nav.open{transform:none;opacity:1;visibility:visible}
  .nav a{padding:13px 8px;font-size:16px}
  .nav a::after{display:none}
  .burger{display:inline-flex}
  .header-cta .btn{display:none}
  .hero-arrow{display:none}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .container{padding:0 18px}
  .svc-grid,.case-grid,.news-grid,.feature-grid,.stats-grid,.cert-grid,.contact-cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero-inner{padding:64px 0 96px}
  .hero-actions .btn{width:100%}
  .stats{margin-top:-40px;padding-bottom:56px}
  .media .badge{padding:14px 18px}
  .media .badge b{font-size:26px}
  .topbar .container{justify-content:center;height:34px}
  .topbar-group.second{display:none}
  .footer-main{grid-template-columns:1fr;gap:30px}
  .timeline::before{left:24px}
  .tl-item{grid-template-columns:1fr;padding-left:44px;gap:4px}
  .tl-item::before{left:24px;top:8px}
  .tl-item .year{text-align:left}
  .news-item{grid-template-columns:1fr}
  .news-item .pic img{aspect-ratio:16/9}
  .news-item .body{padding:18px}
  .spec-grid{grid-template-columns:1fr}
  .article{padding:26px 22px}
  .cta-inner{padding:44px 0}
  .cta-inner .btn{width:100%}
  .contact-grid{grid-template-columns:1fr}
}