/* ==========================================================
   亿联网络 · 黑红白极简风格 · 满屏响应式样式表
   主色：亮蓝 #00b1ee / 深蓝 #368edb / 白 #ffffff（参考 jiemou 蓝白科技风）
   ========================================================== */
:root{
  --ink:#0d0d0f;
  --ink-2:#2a2a2e;
  --muted:#6f6f75;
  --line:#e8e8ea;
  --bg:#ffffff;
  --bg-soft:#f7f7f8;
  --brand:#00b1ee;
  --brand-2:#368edb;
  --brand-dark:#0d0d0f;
  --ok:#0ba45c;
  --warn:#d9822b;
  --err:#d64545;
  --r:8px;
  --shadow:0 10px 34px rgba(0,0,0,.10);
  --shadow-lg:0 24px 60px rgba(0,0,0,.18);
  --wrap:1440px;
  --head-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,transform .2s}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
button{font-family:inherit}

.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-dark{background:var(--brand-dark);color:#cfcfd4}
.mt-0{margin-top:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 32px;border-radius:4px;font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;transition:all .25s;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 22px rgba(0,177,238,.28)}
.btn-primary:hover{background:#0096cc;transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,177,238,.36)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}

/* ---------- 头部（透明覆盖 → 滚动后白底，参考捷谋） ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:var(--head-h);
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);transition:background .3s,box-shadow .3s,border-color .3s;
}
.site-header.scrolled{background:#fff;box-shadow:0 6px 24px rgba(13,13,15,.08)}
.header-inner{height:var(--head-h);display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo .logo-mark{display:flex;align-items:center}
.logo img{height:36px;width:auto;max-width:220px;object-fit:contain;display:block}
.logo-text{display:flex;align-items:center;line-height:1}
.logo-text b{font-size:21px;letter-spacing:.06em;color:var(--ink)}

.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav a{
  position:relative;display:block;padding:9px 16px;font-size:15px;color:var(--ink-2);
  font-weight:500;letter-spacing:.03em;transition:color .25s;
}
.main-nav a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .25s;
}
.main-nav a:hover,.main-nav a.on{color:var(--brand)}
.main-nav a:hover::after,.main-nav a.on::after{transform:scaleX(1)}

/* 顶部日期 / 星期 / 时间 */
.head-clock{
  display:flex;align-items:center;gap:6px;flex-shrink:0;white-space:nowrap;
  font-size:13px;color:var(--muted);letter-spacing:.01em;
}
.head-clock svg{
  width:15px;height:15px;flex-shrink:0;color:currentColor;opacity:.8;
  fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.head-clock .hc-week{margin-left:1px}
.head-clock .hc-time{
  color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;
  padding-left:7px;margin-left:1px;border-left:1px solid var(--line);
}

/* 顶部联系电话：蓝色小面积强调 */
.header-tel{
  display:flex;align-items:center;gap:7px;font-weight:700;font-size:16px;white-space:nowrap;
  color:var(--brand);letter-spacing:.01em;
}
.header-tel svg{color:currentColor;flex-shrink:0}

.nav-toggle{
  display:none;width:44px;height:38px;border:0;cursor:pointer;padding:8px;margin-left:auto;
  background:transparent;border-radius:6px;
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:5px 0;transition:transform .3s,opacity .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(13,13,15,.5);z-index:110}
.nav-close{display:none}

/* ---------- 首页 Hero（全屏视频背景 · 居中文案） ---------- */
.hero{
  position:relative;height:100vh;min-height:640px;overflow:hidden;color:#f2f2f4;
  background:#101720;
}
.hero-video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;
}
.hero-mask{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(180deg,rgba(9,13,20,.74) 0%,rgba(9,13,20,.42) 46%,rgba(9,13,20,.78) 100%),
    linear-gradient(0deg,rgba(9,13,20,.30),rgba(9,13,20,.30));
}
.hero-copy{
  position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:2;
  text-align:center;padding:0 24px;
}
.hero-copy .hero-tag{
  display:inline-flex;align-items:center;gap:9px;padding:6px 16px;border-radius:999px;
  background:rgba(13,20,30,.4);border:1px solid rgba(255,255,255,.22);color:#c9d4e0;
  font-size:12.5px;letter-spacing:.18em;margin-bottom:24px;
}
.hero-copy .hero-tag em{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;font-style:normal}
.hero-copy h1{font-size:50px;line-height:1.22;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.hero-lead{font-size:15.5px;color:#c9d4e0;max-width:720px;margin:0 auto 18px;line-height:1.95}
.hero-trust{font-size:17px;color:#fff;margin-bottom:30px;letter-spacing:.04em}
.hero-trust b{color:var(--brand);font-weight:800;margin:0 2px}
.hero-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.hero-btns .btn{padding:13px 34px;font-size:15.5px}
.hero-btns .btn-outline{border-color:rgba(255,255,255,.55);color:#fff}
.hero-btns .btn-outline:hover{background:#fff;color:var(--ink);border-color:#fff}
.hero-scroll{
  position:absolute;right:36px;bottom:40px;z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:#9a9aa2;font-size:12px;letter-spacing:.14em;
}
.hero-scroll i{
  width:1px;height:44px;background:linear-gradient(180deg,rgba(255,255,255,.5),transparent);
  display:block;position:relative;overflow:hidden;
}
.hero-scroll i::after{
  content:"";position:absolute;left:0;top:-16px;width:1px;height:16px;background:var(--brand);
  animation:scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint{
  0%{transform:translateY(0)}70%{transform:translateY(60px)}100%{transform:translateY(60px)}
}

/* ---------- 区块标题 ---------- */
.sec-head{max-width:760px;margin:0 auto 52px;text-align:center}
.sec-head h2{font-size:34px;margin-bottom:14px;letter-spacing:.02em}
.sec-head p{color:var(--muted);font-size:15px}
.section-dark .sec-head p{color:#8c8c95}
.sec-head .kicker{
  display:inline-block;font-size:12px;letter-spacing:.28em;color:var(--brand);font-weight:700;margin-bottom:14px;
}
.sec-head .kicker::before,.sec-head .kicker::after{
  content:"";display:inline-block;width:26px;height:1px;background:var(--brand);vertical-align:middle;margin:0 10px;opacity:.5;
}

/* ---------- 服务卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.svc-grid{gap:20px}
/* 首页服务卡：灰底居中（捷谋式） */
.svc-grid .svc-card{
  flex-direction:column;align-items:center;text-align:center;gap:14px;
  padding:46px 30px 42px;background:var(--bg-soft);border-color:transparent;
}
.svc-grid .svc-icon{width:72px;height:72px;border-radius:50%;background:#fff;color:var(--muted)}
.svc-grid .svc-icon svg{width:34px;height:34px}
.svc-grid .svc-icon img{width:72px;height:72px}
.svc-grid .svc-card:hover .svc-icon{background:var(--brand);color:#fff}
.svc-grid .svc-main{width:100%}
.svc-grid .svc-card h3{font-size:20px;margin-bottom:8px;padding-right:0}
.svc-grid .svc-desc{font-size:13.5px}
.svc-grid .svc-go{display:none}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px 28px;
  transition:all .3s;position:relative;overflow:hidden;
  display:flex;align-items:center;gap:20px;
}
.svc-card::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;
  background:var(--brand);transition:width .35s;
}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 0 30px rgba(0,0,0,.16);border-color:transparent}
.svc-card:hover::after{width:100%}
.svc-no{
  position:absolute;right:18px;top:10px;font-size:32px;font-weight:800;line-height:1;
  color:rgba(13,13,15,.06);letter-spacing:.02em;pointer-events:none;
}
.svc-icon{
  width:110px;height:110px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  background:var(--bg-soft);color:var(--ink);
  box-shadow:inset 0 0 0 1px var(--line);transition:all .3s;
}
.svc-icon svg{width:52px;height:52px}
.svc-icon img{width:110px;height:110px;object-fit:contain;display:block}
.svc-main{flex:1;min-width:0}
.svc-card h3{font-size:19px;margin-bottom:6px}
.svc-card h3 a:hover{color:var(--brand)}
.svc-sub{color:var(--brand);font-size:13px;font-weight:600;margin-bottom:6px;letter-spacing:.02em}
.svc-desc{color:var(--muted);font-size:14px;line-height:1.75}
.svc-go{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);color:var(--brand);transition:all .25s;
}
.svc-card:hover .svc-go{background:var(--brand);color:#fff;transform:translateX(3px)}

/* ---------- 服务项目内页：左右交替大卡片 ---------- */
.svc-lg{display:grid;gap:22px}
.svc-lg .svc-card{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:30px;align-items:flex-start;
  padding:36px 40px;border-radius:12px;min-height:190px;
}
.svc-lg .svc-card:nth-child(even){grid-template-columns:minmax(0,1fr) 150px}
.svc-lg .svc-card:nth-child(even) .svc-icon{order:2}
.svc-lg .svc-card:nth-child(even) .svc-main{order:1}
.svc-lg .svc-card::after{height:4px}
.svc-lg .svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.svc-lg .svc-no{
  right:24px;top:16px;font-size:56px;font-weight:800;
  color:rgba(0,177,238,.08);letter-spacing:-.02em;
}
.svc-lg .svc-icon{width:150px;height:150px;border-radius:14px;transition:all .35s}
.svc-lg .svc-icon svg{width:68px;height:68px}
.svc-lg .svc-icon img{width:130px;height:130px}
.svc-lg .svc-card:hover .svc-icon{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(0,177,238,.28)}
.svc-lg .svc-main{min-width:0}
.svc-lg .svc-card h3{font-size:22px;margin-bottom:8px;letter-spacing:.01em}
.svc-lg .svc-sub{font-size:13.5px;margin-bottom:10px;letter-spacing:.04em}
.svc-lg .svc-desc{font-size:14.5px;line-height:1.85}
.svc-lg .svc-link{
  display:inline-flex;align-items:center;gap:4px;margin-top:16px;
  color:var(--brand);font-size:14.5px;font-weight:600;
}
.svc-lg .svc-link svg{transition:transform .25s}
.svc-lg .svc-card:hover .svc-link svg{transform:translateX(4px)}

/* ---------- 服务详情：简介块 ---------- */
.svc-intro{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:0 8px 8px 0;padding:24px 28px;margin-bottom:30px;
  box-shadow:0 2px 10px rgba(0,0,0,.04);
}
.svc-intro p{font-size:16px;line-height:1.9;color:var(--ink-2)}
@media (max-width:600px){
  .svc-intro{padding:18px 18px;margin-bottom:22px}
  .svc-intro p{font-size:15px}
}

/* ---------- 案例 ---------- */
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:all .3s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--ink)}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d0d0f}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-thumb .tag{
  position:absolute;left:14px;top:14px;background:var(--brand);color:#fff;
  font-size:12px;padding:4px 12px;border-radius:3px;letter-spacing:.04em;
}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body h3::after{content:"";display:block;width:0;height:2px;background:var(--brand);margin-top:8px;transition:width .3s}
.case-card:hover .case-body h3::after{width:36px}
.case-body p{color:var(--muted);font-size:14px}

/* ---------- 新闻（首页两列） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px 46px}
.news-card{background:none;border:0;border-radius:0;overflow:visible}
.news-link{display:grid;grid-template-columns:152px minmax(0,1fr);gap:18px;align-items:start}
.news-thumb{
  width:152px;aspect-ratio:16/9.3;overflow:hidden;border-radius:4px;background:#0d0d0f;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:0;display:block}
.news-card h3{
  display:flex;align-items:baseline;gap:6px;margin:0;
  font-size:15.5px;font-weight:600;line-height:1.5;color:var(--ink);
}
.news-card h3 .t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-card:hover h3{color:var(--brand)}
.news-date{flex:none;font-size:12.5px;font-weight:400;color:#9a9aa2}
.news-card p{
  margin-top:7px;color:#7f7f87;font-size:13px;line-height:1.75;min-height:3.5em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* 站内搜索列表（无缩略图，日期为独立色块） */
.news-item{display:flex;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);align-items:flex-start}

/* ---------- 资讯中心列表（日期左 · 内容右） ---------- */
.news-list{border-top:2px solid var(--ink)}
.news-row{padding:30px 0;border-bottom:1px solid var(--line)}
.news-row-link{display:grid;grid-template-columns:230px 1fr;gap:28px;align-items:start}
.news-row-thumb{
  width:230px;aspect-ratio:3/2;overflow:hidden;border-radius:6px;background:#0d0d0f;
}
.news-row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-row:hover .news-row-thumb img{transform:scale(1.04)}
.news-row h3{font-size:18px;font-weight:700;line-height:1.5;color:var(--ink);transition:color .25s}
.news-row:hover h3{color:var(--brand)}
.news-row p{margin-top:12px;font-size:13.5px;line-height:1.85;color:#7f7f87}
.news-row p .more{color:#9a9aa2;font-weight:600;white-space:nowrap}
.news-row:hover p .more{color:var(--brand)}
.news-row-date{margin-top:9px;font-size:12.5px;color:#9a9aa2}

/* 站内搜索列表：日期色块（仅作用于搜索结果，不影响首页内联日期） */
.news-item h3{font-size:17px;margin-bottom:6px}
.news-item h3 a:hover{color:var(--brand)}
.news-item p{color:var(--muted);font-size:13.5px;line-height:1.8}
.news-item .news-date{flex:none;text-align:center;min-width:64px;padding:8px 10px;border:1px solid var(--line);border-radius:6px}
.news-item .news-date b{display:block;font-size:24px;color:var(--brand);line-height:1.2}
.news-item .news-date span{font-size:12px;color:var(--muted)}

/* ---------- 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:40px}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:4px;font-size:14px;background:#fff;color:var(--ink-2);
}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager span.cur{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.pager span.dis{color:#b7b7bd}

/* ---------- 内页横幅（深色满宽 · 居中标题） ---------- */
.page-banner{
  background:
    linear-gradient(180deg,rgba(10,12,16,.72),rgba(10,12,16,.78)),
    url("/images/hero/hero-office.jpg") center/cover no-repeat;
  color:#fff;padding:calc(var(--head-h) + 72px) 0 66px;position:relative;overflow:hidden;text-align:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;mask-image:radial-gradient(circle at 75% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 75% 30%,#000 20%,transparent 78%);
}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{font-size:34px;margin-bottom:12px;letter-spacing:.06em}
.page-banner h1::after{content:"";display:none}
.page-banner p{color:rgba(255,255,255,.66);font-size:15px}

/* ---------- 内容页 ---------- */
.article-body{font-size:16px;line-height:1.9;color:var(--ink-2)}
.article-body h2{font-size:22px;margin:30px 0 14px;padding-left:12px;border-left:3px solid var(--brand)}
.article-body h3{font-size:18px;margin:24px 0 12px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:8px}
.article-body ol li{list-style:decimal;margin-bottom:8px}
.article-body img{max-width:100%;height:auto;display:block;border-radius:8px;margin:12px 0}
.article-body a{color:var(--brand);text-decoration:underline}
.article-body a:hover{opacity:.8}
.article-body hr{border:0;border-top:1px solid var(--line);margin:24px 0}
.article-body h4,.article-body h5,.article-body h6{font-size:16px;margin:20px 0 10px}
.article-body pre{background:#0d0d0f;color:#e8e8ec;padding:16px 18px;border-radius:8px;overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 16px}
.article-body code{font-family:Consolas,Monaco,monospace;background:var(--bg-soft);padding:2px 6px;border-radius:4px;font-size:14px}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body figure{margin:16px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body blockquote{margin:16px 0;padding:14px 18px;background:var(--bg-soft);border-left:3px solid var(--brand);color:var(--ink-2)}
.article-body table{width:100%;border-collapse:collapse;margin:16px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;font-size:14px}
.article-body th{background:var(--bg-soft)}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px;margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.article-title{font-size:28px;margin-bottom:14px;line-height:1.4}
.article-nav{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;margin-top:36px;padding-top:22px;border-top:1px solid var(--line);font-size:14px}
.article-nav a{color:var(--ink-2)}
.article-nav a:hover{color:var(--brand)}

/* ---------- 关于页 ---------- */
.about-h2{font-size:26px;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--ink);position:relative}
.about-h2::after{content:"";position:absolute;left:0;bottom:-2px;width:56px;height:2px;background:var(--brand)}
.about-intro{max-width:920px}
.about-intro p{font-size:16px;line-height:2;color:var(--ink-2)}
/* 关于我们：简介左文右图 */
.about-split{display:grid;grid-template-columns:1.5fr 1fr;gap:44px;align-items:start}
.about-photo{margin:0}
.about-photo img{
  width:100%;height:auto;display:block;border-radius:10px;
  box-shadow:var(--shadow);
}
@media (max-width:1024px){
  .about-split{grid-template-columns:1fr;gap:26px}
}

/* ---------- 侧边栏 ---------- */
.layout-side{display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start}
.side-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;margin-bottom:20px}
.side-box h3{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--ink)}
.side-list li{margin-bottom:11px;font-size:14px;line-height:1.6}
.side-list a{color:var(--ink-2);display:flex;gap:8px}
.side-list a:hover{color:var(--brand)}
.side-list em{color:var(--brand);font-style:normal;flex-shrink:0}
.cate-list li a{display:block;padding:8px 14px;border-radius:4px;color:var(--ink-2);font-size:14px;border:1px solid transparent}
.cate-list li a:hover,.cate-list li a.on{background:var(--brand);color:#fff;font-weight:600}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px}
.info-card{
  display:flex;gap:16px;padding:20px;border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:16px;transition:all .25s;
}
.info-card:hover{border-color:var(--ink);transform:translateY(-2px)}
.info-card .ic{width:44px;height:44px;border-radius:8px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--brand);flex-shrink:0}
.info-card h4{font-size:15px;margin-bottom:3px}
.info-card p{color:var(--muted);font-size:14px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink-2)}
.form-row label i{color:var(--brand);font-style:normal}
.input,.textarea,select.input{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:4px;font-size:15px;
  font-family:inherit;background:#fff;color:var(--ink);transition:border-color .2s,box-shadow .2s;
}
.input:focus,.textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,177,238,.10)}
.textarea{min-height:120px;resize:vertical}
.captcha-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.captcha-row .input{flex:1;min-width:120px}
.captcha-img{height:44px;border-radius:6px;border:1px solid var(--line);cursor:pointer;background:#0d0d0f}
.form-tip{font-size:13px;color:var(--muted);margin-top:8px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- 提示框 ---------- */
.alert{padding:13px 18px;border-radius:6px;font-size:14px;margin-bottom:20px;border:1px solid}
.alert-ok{background:rgba(11,164,92,.08);border-color:rgba(11,164,92,.3);color:#0a7a45}
.alert-err{background:rgba(214,69,69,.08);border-color:rgba(214,69,69,.3);color:#b03030}

/* ---------- 后台登录 ---------- */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(900px 500px at 85% 12%,rgba(0,177,238,.16),transparent 60%),
    linear-gradient(160deg,#101720 0%,#1a2432 55%,#101720 100%);
  padding:40px 16px;
}
.login-box{
  width:100%;max-width:420px;background:#fff;border-radius:14px;
  padding:44px 40px 36px;box-shadow:0 24px 70px rgba(6,12,20,.45);
}
.login-box h1{font-size:24px;color:var(--ink);text-align:center;margin-bottom:8px;letter-spacing:.02em}
.login-box .lb-sub{text-align:center;color:var(--muted);font-size:13.5px;margin-bottom:28px}

/* ---------- 首页特性条 ---------- */
.feature-strip{background:var(--bg);border-bottom:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:0}
.feature-item{display:flex;gap:14px;align-items:flex-start;padding:30px 8px}
.feature-item .fi{width:44px;height:44px;border-radius:8px;background:var(--bg-soft);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand);flex-shrink:0;transition:all .25s}
.feature-item:hover .fi{background:var(--brand);border-color:var(--brand);color:#fff}
.feature-item h4{font-size:15px;margin-bottom:3px}
.feature-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 服务流程（黑色区块） ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.flow-item{text-align:center;position:relative;padding:26px 14px;border:1px solid rgba(255,255,255,.12);border-radius:10px;transition:all .3s}
.flow-item:hover{border-color:var(--brand);background:rgba(0,177,238,.06);transform:translateY(-4px)}
.flow-item .num{
  width:56px;height:56px;margin:0 auto 14px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--brand);color:var(--brand);font-size:20px;font-weight:800;transition:all .3s;
}
.flow-item:hover .num{background:var(--brand);color:#fff}
.flow-item h4{font-size:15px;margin-bottom:6px;color:#fff}
.flow-item p{font-size:13px;color:#8c8c95;line-height:1.6}

/* ---------- 留言列表 ---------- */
.msg-item{border:1px solid var(--line);border-radius:10px;padding:20px 22px;background:#fff;margin-bottom:14px}
.msg-head{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:9px}
.msg-head b{font-size:15px}
.msg-head span{font-size:12px;color:var(--muted)}
.msg-content{font-size:14.5px;color:var(--ink-2);line-height:1.8;white-space:pre-wrap}

/* ---------- CTA（黑色横幅 · 红色按钮点缀） ---------- */
.cta-band{background:linear-gradient(120deg,#0d0d0f,#1a1a1e 58%,#0d0d0f);color:#fff;padding:56px 0}
.cta-inner{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-text h2{font-size:27px;margin-bottom:8px;letter-spacing:.02em}
.cta-text p{color:#9a9aa2;font-size:15px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap}
.cta-btns .btn-light{background:var(--brand);color:#fff}
.cta-btns .btn-light:hover{background:#0096cc;color:#fff}
.cta-btns .btn-outline{border-color:rgba(255,255,255,.45)}
.cta-btns .btn-outline:hover{background:#fff;color:var(--ink)}

/* ---------- 页脚（黑色） ---------- */
.site-footer{background:#0d0d0f;color:#9d9da5}
.footer-inner{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px;
  padding:58px 0 52px;
}
.footer-col h3{
  font-size:16px;color:#fff;margin-bottom:22px;position:relative;padding-bottom:12px;
  letter-spacing:.02em;
}
.footer-col h3::after{
  content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand);
}
.footer-col>p{font-size:14px;line-height:1.9;color:#8c8c95}
.f-small{font-size:13px;color:#6f6f75;margin-top:10px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:#8c8c95;transition:color .2s}
.footer-links a:hover{color:var(--brand-2)}
.contact-list li{font-size:14px;margin-bottom:13px;color:#8c8c95;display:flex;gap:10px;line-height:1.6}
.contact-list span{color:#5c5c63;flex-shrink:0;width:38px}
.footer-qr h3{text-align:left}
.footer-qr .qr-box{
  width:130px;height:130px;margin:0 auto 10px;padding:7px;background:#fff;border-radius:8px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.3);
}
.footer-qr .qr-box img{width:100%;height:100%;object-fit:contain;display:block}
.footer-qr .qr-empty{
  width:130px;height:130px;margin:0 auto 10px;border:1px dashed rgba(255,255,255,.3);border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:#5c5c63;font-size:12px;text-align:center;padding:10px;line-height:1.6;
}
.footer-qr .qr-tip{display:block;font-size:12.5px;color:#6f6f75;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0}
.footer-bottom p{font-size:13px;color:#6f6f75;text-align:center}
.footer-bottom .record-link{
  color:#6f6f75;text-decoration:none;border-bottom:1px dashed rgba(255,255,255,.18);
  transition:color .2s,border-color .2s;
}
.footer-bottom .record-link:hover{color:var(--brand-2);border-bottom-color:rgba(0,177,238,.55)}
.f-links{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;
  margin-top:10px;font-size:12.5px;color:#5c5c63;
}
.f-links a{color:#6f6f75;transition:color .2s}
.f-links a:hover{color:var(--brand-2)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:6px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,177,238,.35);opacity:0;pointer-events:none;transition:opacity .3s;z-index:100;
}
.to-top:hover{background:#0096cc}
.to-top.show{opacity:1;pointer-events:auto}

/* ---------- 移动端底部导航 ---------- */
.m-tabbar{display:none}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 20px;align-items:start}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:all .25s;
  align-self:start;
}
.faq-item:hover{border-color:var(--ink)}
.faq-item[open]{box-shadow:var(--shadow);border-color:var(--ink)}
.faq-item summary{
  padding:16px 20px;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--ink);list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;color:var(--brand);font-weight:700;line-height:1;flex-shrink:0;
}
.faq-item[open] summary::after{content:"−"}
.faq-no{
  font-style:normal;font-size:12px;font-weight:700;color:#fff;background:var(--brand);
  padding:3px 8px;border-radius:3px;margin-right:10px;flex-shrink:0;letter-spacing:.02em;
}
.faq-q{flex:1;min-width:0}
.faq-item .faq-answer{
  padding:0 20px 18px 20px;color:var(--muted);font-size:14.5px;line-height:1.85;
}
.faq-cta{
  margin-top:32px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  background:var(--bg-soft);border:1px dashed var(--brand);border-radius:10px;padding:22px 26px;
}
.faq-cta-text h3{font-size:18px;margin-bottom:4px}
.faq-cta-text p{color:var(--muted);font-size:14px}
.faq-cta-btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 滚动入场动画 ---------- */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- 表单错误态 ---------- */
.input.err,.textarea.err{border-color:var(--err);box-shadow:0 0 0 3px rgba(214,69,69,.12)}

/* ---------- 案例分类 Tab + 四列案例墙 ---------- */
.case-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:38px}
.ctab{
  padding:9px 24px;border-radius:999px;cursor:pointer;font-size:14px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);transition:all .25s;
}
.ctab:hover{border-color:var(--ink);color:var(--ink)}
.ctab.on{background:var(--brand);border-color:var(--brand);color:#fff}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.case-wall .case-card{transition:opacity .3s}
.case-wall .case-card.hide{display:none}
.case-empty{text-align:center;color:var(--muted);font-size:14px;padding:20px 0 0}
.more-line{text-align:center;margin-top:40px}
/* 服务区与案例区衔接处收紧间距 */
.svc-sec{padding-bottom:32px}
.case-sec{padding-top:64px}

/* ---------- 首页案例卡（图 + 蓝线标题，捷谋式） ---------- */
.case-wall .case-card{border-color:transparent}
.case-wall .case-card:hover{border-color:transparent}
.case-wall .case-card .case-body{padding:16px 2px 6px;text-align:center}
.case-wall .case-card .case-body h3{
  font-size:16px;font-weight:600;line-height:1.5;padding-top:12px;position:relative;
}
.case-wall .case-card .case-body h3::before{
  content:"";position:absolute;left:50%;transform:translateX(-50%);top:0;width:34px;height:3px;background:var(--brand);
  transition:width .3s;
}
.case-wall .case-card:hover .case-body h3{color:var(--brand)}
.case-wall .case-card:hover .case-body h3::before{width:56px}
.case-wall .case-card .case-body p{display:none}
.case-wall .case-card .case-thumb .tag{display:none}

/* ---------- 首页新闻（两列图文 · 参考截图模式） ---------- */
.news-matrix{display:grid;grid-template-columns:1fr 1fr;gap:0 44px}
.news-matrix li{border-bottom:1px solid var(--line)}
.news-matrix li:nth-last-child(-n+2){border-bottom:0}
.nm-link{display:flex;gap:22px;padding:22px 4px;align-items:flex-start}
.nm-thumb{
  flex:none;width:300px;aspect-ratio:16/10;border-radius:4px;overflow:hidden;background:var(--bg-soft);
}
.nm-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.nm-link:hover .nm-thumb img{transform:scale(1.05)}
.nm-body{flex:1;min-width:0}
.nm-body h3{
  font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:6px;transition:color .2s;
}
.nm-link:hover .nm-body h3{color:var(--brand)}
.nm-body time{display:block;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;margin-bottom:8px}
.nm-body p{
  color:var(--muted);font-size:13.5px;line-height:1.9;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.nm-more{font-size:13px;color:var(--ink-2);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:color .2s}
.nm-more i{font-style:normal;transition:transform .25s}
.nm-link:hover .nm-more{color:var(--brand)}
.nm-link:hover .nm-more i{transform:translateX(4px)}

/* ---------- 新闻列表页（筛选卡 + 两列图文，参考图模式） ---------- */
.news-filter{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:16px 20px;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;
}
.news-filter .ctab{font-size:13.5px;padding:8px 20px}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 44px}
.news-grid li{border-bottom:1px solid var(--line)}
.news-grid li:nth-last-child(-n+2){border-bottom:0}
.ng-link{display:flex;gap:18px;padding:22px 2px;align-items:flex-start}
.news-grid .nm-thumb{width:190px;border-radius:6px}
.ng-body{flex:1;min-width:0}
.ng-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:8px}
.ng-head h3{
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;transition:color .2s;
}
.ng-link:hover .ng-head h3{color:var(--brand)}
.ng-head time{flex:none;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.ng-body p{
  color:var(--muted);font-size:13px;line-height:1.9;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- 首页新闻（日期方块列表，捷谋式） ---------- */
.news-date-list{max-width:1100px;margin:0 auto}
.news-date-list li{border-bottom:1px solid var(--line)}
.news-date-list li:last-child{border-bottom:0}
.ndl-link{display:flex;gap:22px;padding:24px 6px;align-items:flex-start;transition:background .25s}
.ndl-link:hover{background:var(--bg-soft)}
.ndl-date{
  flex:none;width:78px;text-align:center;background:var(--bg-soft);border-radius:6px;
  padding:10px 0 8px;line-height:1.15;
}
.ndl-link:hover .ndl-date{background:var(--brand);color:#fff}
.ndl-date b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums}
.ndl-date span{font-size:12px;color:var(--muted)}
.ndl-link:hover .ndl-date span{color:rgba(255,255,255,.8)}
.ndl-main{flex:1;min-width:0}
.ndl-main h3{
  font-size:16.5px;font-weight:600;margin-bottom:6px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .2s;
}
.ndl-link:hover .ndl-main h3{color:var(--brand)}
.ndl-main p{
  color:var(--muted);font-size:13.5px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- 数据实力横条（视频背景 · 参考捷谋） ---------- */
.stats-band{
  position:relative;overflow:hidden;color:#fff;
  background:#101720;
}
.stats-video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;
}
.stats-mask{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg,rgba(10,14,20,.82) 18%,rgba(10,14,20,.6) 55%,rgba(10,14,20,.44) 100%),
    linear-gradient(0deg,rgba(10,14,20,.26),rgba(10,14,20,.26));
}
.stats-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);
  gap:40px;padding:88px 0 82px;
}
.stats-item strong{
  display:block;font-size:58px;line-height:1.05;font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;margin-bottom:14px;letter-spacing:-.01em;
}
.stats-item strong::after{
  content:"+";color:var(--brand);font-size:30px;vertical-align:super;margin-left:2px;font-weight:700;
}
.stats-item p{color:rgba(255,255,255,.82);font-size:13.5px;line-height:2;letter-spacing:.02em}

/* ---------- 客户墙 ---------- */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;padding:0}
.logo-wall li{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;
  padding:22px 10px;text-align:center;font-size:14px;font-weight:600;color:var(--ink-2);
  letter-spacing:.03em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:all .25s;
}
.logo-wall li:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 观点资讯（左特色 + 右列表） ---------- */
.news-split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:stretch}
.news-fea-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:transform .3s,box-shadow .3s;height:100%;
}
.news-fea-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-fea-card .news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.news-fea-card .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-fea-card:hover .news-thumb img{transform:scale(1.04)}
.news-fea-card .news-body{padding:24px 26px 26px}
.news-fea-card h3{font-size:19px;line-height:1.55;margin:8px 0 10px}
.news-fea-card p{color:var(--muted);font-size:14px;line-height:1.85}
.news-lines{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 26px}
.news-lines li{border-bottom:1px solid var(--line)}
.news-lines li:last-child{border-bottom:0}
.news-lines a{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 0;transition:color .2s;
}
.news-lines .nl-title{
  flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font-size:15px;color:var(--ink-2);
}
.news-lines .nl-date{flex:none;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-lines a:hover .nl-title{color:var(--brand)}

/* ---------- 页脚热线区 ---------- */
.footer-hotline{
  background:linear-gradient(120deg,#1c1c20,#26262b 58%,#1c1c20);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hotline-inner{display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;padding:44px 0}
.hotline-text h2{font-size:17px;font-weight:600;color:#9a9aa2;margin-bottom:6px;letter-spacing:.04em}
.hotline-tel{
  display:block;font-size:40px;font-weight:800;color:#fff;letter-spacing:.03em;
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:8px;
}
.hotline-tel:hover{color:var(--brand-2)}
.hotline-text p{color:#8a8a92;font-size:13.5px;max-width:560px}
.hotline-actions{display:flex;align-items:center;gap:22px}
.hotline-qr{background:#fff;border-radius:8px;padding:6px}
.hotline-qr img{display:block;width:112px;height:112px;object-fit:contain}

/* ---------- 导航二级下拉 ---------- */
.main-nav .has-sub{position:relative}
.main-nav .arrow{
  display:inline-block;width:7px;height:7px;margin-left:5px;vertical-align:2px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);opacity:.5;transition:transform .25s;font-style:normal;
}
.main-nav .sub{
  position:absolute;left:50%;top:100%;transform:translate(-50%,10px);
  min-width:200px;background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:0 14px 40px rgba(13,13,15,.13);padding:8px;
  opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;
}
.main-nav .has-sub:hover .sub,
.main-nav .has-sub:focus-within .sub{opacity:1;visibility:visible;transform:translate(-50%,0)}
.main-nav .has-sub:hover .arrow{transform:rotate(225deg) translate(-2px,-2px)}
.main-nav .sub li{position:relative}
.main-nav .sub a{
  display:block;padding:9px 14px;font-size:13.5px;color:var(--ink-2);
  border-radius:6px;white-space:nowrap;transition:background .2s,color .2s;
}
.main-nav .sub a:hover{background:var(--bg-soft);color:var(--brand)}
.main-nav .sub .sub-more a{color:var(--brand);font-weight:600;border-top:1px solid var(--line);border-radius:0;margin-top:4px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-copy h1{font-size:38px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(4,1fr)}
  .layout-side{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .svc-lg .svc-card{grid-template-columns:120px minmax(0,1fr)!important;padding:28px 26px}
  .svc-lg .svc-card:nth-child(even) .svc-icon{order:0}
  .svc-lg .svc-card:nth-child(even) .svc-main{order:1}
  .svc-lg .svc-icon{width:120px;height:120px}
  .svc-lg .svc-icon svg{width:56px;height:56px}
  .svc-lg .svc-no{font-size:40px}
}
@media (max-width:860px){
  .nav-toggle{display:block;position:relative;z-index:120}
  /* 手机端导航：右侧滑出抽屉（off-canvas） */
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:84vw;max-width:340px;height:100vh;max-height:none;
    background:#fff;margin:0;z-index:133;display:block;
    padding:0 20px calc(38px + env(safe-area-inset-bottom,0px));overflow-y:auto;overscroll-behavior:contain;
    box-shadow:-26px 0 64px rgba(13,13,15,.28);
    transform:translateX(100%);opacity:1;visibility:hidden;
    transition:transform .32s cubic-bezier(.22,.61,.36,1),visibility .32s;
  }
  .main-nav.open{transform:translateX(0);visibility:visible}
  .main-nav::before{
    content:"菜单导航";display:block;font-size:11.5px;letter-spacing:.24em;
    color:var(--muted);padding:28px 44px 16px 0;border-bottom:1px solid var(--line);
  }
  .nav-close{
    display:flex;position:absolute;top:14px;right:6px;width:40px;height:40px;
    border:0;background:transparent;cursor:pointer;color:var(--ink);
    font-size:26px;line-height:1;align-items:center;justify-content:center;
  }
  .nav-close:hover{color:var(--brand)}
  .main-nav > ul{padding-top:4px}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav > ul > li + li{border-top:1px solid var(--line)}
  .main-nav > ul > li > a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    color:var(--ink)!important;padding:17px 2px;font-size:16px;font-weight:600;border-radius:0;
  }
  /* 关闭桌面端链接下划线动效（否则抽屉里悬停会出现蓝色横线） */
  .main-nav > ul > li > a::after{display:none}
  .main-nav li.has-sub > a::after{
    content:"";position:static;width:7px;height:7px;flex-shrink:0;display:block;
    border-right:1.5px solid #c6c6cc;border-top:1.5px solid #c6c6cc;
    transform:rotate(45deg);transition:border-color .2s;background:transparent;
  }
  .main-nav li.has-sub > a.on::after{border-color:var(--brand)}
  .site-header .main-nav a:hover,.site-header .main-nav a.on{color:var(--brand)!important;background:none}
  .main-nav > ul > li > a.on{font-weight:700}
  .main-nav li{background:#fff}
  /* 二级菜单在抽屉内缩进展开 */
  .main-nav .sub{
    position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;min-width:0;padding:0 0 12px;background:transparent;
  }
  .main-nav .sub li{border:0}
  .main-nav .sub a{
    position:relative;display:block;padding:9px 0 9px 15px;
    font-size:13.5px;font-weight:400;color:var(--muted)!important;
  }
  .main-nav .sub a::after{display:none}
  .main-nav .sub a::before{
    content:"";position:absolute;left:1px;top:50%;margin-top:-2px;
    width:5px;height:5px;border-radius:50%;background:#cfd6e0;
    border:0;transform:none;
  }
  .main-nav .sub a:hover{color:var(--brand)!important}
  /* 覆盖桌面端 hover 下拉（否则触摸/悬停时二级菜单会平移跳动） */
  .main-nav .has-sub:hover .sub,
  .main-nav .has-sub:focus-within .sub,
  .main-nav .has-sub:hover > .sub{
    position:static;transform:none;opacity:1;visibility:visible;
    box-shadow:none;border:0;min-width:0;background:transparent;
  }
  .main-nav .has-sub:hover .arrow{transform:none}
  .main-nav .sub .sub-more a{padding-left:0;color:var(--brand)!important;font-weight:600}
  .main-nav .sub .sub-more a::before{display:none}
  .main-nav .arrow{display:none}
  .nav-mask.show{display:block}
  body.nav-open{overflow:hidden}
  .header-inner{gap:14px}
  /* 手机端顶栏只留 logo + 汉堡，日期/时间/电话隐藏（电话在底部 Tab） */
  .head-clock{display:none}
  .header-tel{font-size:13px;gap:4px;margin-left:auto}
  .header-tel svg{width:13px;height:13px}
  .nav-toggle{margin-left:0}
  .hero{height:auto;min-height:100svh}
  .hero-copy{padding:0 20px}
  .hero-copy h1{font-size:30px}
  .hero-lead{font-size:13.5px;margin-bottom:14px}
  .hero-trust{font-size:14.5px;margin-bottom:22px}
  .hero-scroll{display:none}
  .idea-grid{grid-template-columns:1fr;gap:16px}
  .stats-inner{grid-template-columns:1fr;gap:26px;padding:52px 0 48px}
  .stats-item strong{font-size:40px}
  .stats-item p{font-size:12.5px}
  .grid-4{grid-template-columns:1fr 1fr;gap:14px}
  .logo-wall{grid-template-columns:repeat(3,1fr);gap:10px}
  .logo-wall li{padding:16px 6px;font-size:12.5px}
  .news-split{grid-template-columns:1fr;gap:24px}
  .news-lines a{padding:14px 0}
  .ndl-link{gap:14px;padding:18px 2px}
  .ndl-date{width:62px;padding:8px 0 6px}
  .ndl-date b{font-size:21px}
  .ndl-main h3{white-space:normal;font-size:15px}
  .news-grid{grid-template-columns:1fr;gap:0}
  .news-grid li:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .news-grid li:last-child{border-bottom:0}
  .news-filter{padding:12px 14px;margin-bottom:22px}
  .news-filter .ctab{padding:7px 16px;font-size:12.5px}
  .ng-link{gap:14px;padding:16px 2px}
  .news-grid .nm-thumb{width:120px}
  .ng-head{flex-direction:column;gap:4px}
  .ng-head h3{font-size:15px}
  .ng-body p{-webkit-line-clamp:2;font-size:12.5px}
  .news-matrix{grid-template-columns:1fr}
  .news-matrix li:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .news-matrix li:last-child{border-bottom:0}
  .nm-link{gap:14px;padding:16px 2px}
  .nm-thumb{width:120px}
  .nm-body h3{font-size:15px}
  .nm-body p{-webkit-line-clamp:2;font-size:12.5px}
  .nm-more{display:none}
  .hotline-inner{flex-direction:column;align-items:flex-start;gap:18px;padding:42px 0 50px}
  .hotline-text h2{margin-bottom:8px}
  .hotline-tel{font-size:28px;margin-bottom:10px}
  .hotline-text p{margin-bottom:10px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:36px}
  .sec-head h2{font-size:25px}
  .page-banner{padding:calc(var(--head-h) + 40px) 0 40px}
  .page-banner h1{font-size:26px}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr}
  .svc-card{padding:22px 20px;gap:16px}
  .svc-icon{width:96px;height:96px;border-radius:10px}
  .svc-icon svg{width:44px;height:44px}
  .svc-icon img{width:96px;height:96px}
  .svc-lg{gap:16px}
  .svc-lg .svc-card{grid-template-columns:1fr!important;padding:24px 20px;gap:16px}
  .svc-lg .svc-icon{width:100px;height:100px;border-radius:10px}
  .svc-lg .svc-icon svg{width:46px;height:46px}
  .svc-lg .svc-icon img{width:100px;height:100px}
  .svc-lg .svc-card h3{font-size:19px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .m-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:130;
    background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-top:1px solid var(--line);
    box-shadow:0 -4px 18px rgba(0,0,0,.10);
    padding:6px 2px calc(6px + env(safe-area-inset-bottom,0px));
  }
  .m-tabbar a{
    position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    padding:3px 0 2px;color:var(--muted);font-size:11px;line-height:1.2;text-decoration:none;
    -webkit-tap-highlight-color:transparent;
  }
  .m-tabbar a svg{
    position:relative;z-index:1;width:22px;height:22px;
    fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
  }
  .m-tabbar a::before{
    content:"";position:absolute;top:0;left:50%;margin-left:-17px;
    width:34px;height:34px;border-radius:10px;background:transparent;transition:background .25s;
  }
  .m-tabbar a.on{color:var(--brand);font-weight:600}
  .m-tabbar a.on::before{background:rgba(0,177,238,.10)}
  .m-tabbar a.on svg{stroke-width:2}
  .m-tabbar a.tab-tel{color:var(--brand)}
  .m-tabbar a.tab-tel::before{background:rgba(0,177,238,.10)}
  .m-tabbar a.tab-tel svg{stroke-width:1.9}
  body{padding-bottom:56px}
  .to-top{bottom:72px}
  /* 抽屉菜单打开时淡出底部 Tab 栏，避免遮挡“联系我们” */
  .m-tabbar{transition:opacity .25s}
  body.nav-open .m-tabbar{opacity:0;pointer-events:none}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .header-inner{gap:9px}
  .logo-text b{font-size:18px}
  .header-tel{display:none}
  .nav-toggle{margin-left:auto}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr;gap:24px}
  .news-link{grid-template-columns:124px minmax(0,1fr);gap:14px}
  .news-thumb{width:124px}
  .news-row{padding:22px 0}
  .news-row-link{grid-template-columns:124px minmax(0,1fr);gap:14px}
  .news-row-thumb{width:124px}
  .news-row h3{font-size:16px}
  .news-row p{margin-top:6px;font-size:13px}
  .svc-card{flex-wrap:wrap}
  .svc-go{display:none}
  .feature-grid{grid-template-columns:1fr 1fr}
  .flow-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:28px;padding:46px 0 42px}
  .article-title{font-size:22px}
}
@media (max-width:360px){
  .header-inner{gap:6px}
  .logo-text b{font-size:17px}
}