/* ==========================================================
   科技风格企业站点 · 响应式样式表
   ========================================================== */
:root{
  --ink:#0f1c2e;
  --ink-2:#1b2b45;
  --muted:#6b7a90;
  --line:#e6ecf4;
  --bg:#ffffff;
  --bg-soft:#f5f8fc;
  --brand:#0066ff;
  --brand-2:#00d4ff;
  --brand-dark:#07203f;
  --ok:#0ba45c;
  --warn:#d9822b;
  --err:#d64545;
  --r:14px;
  --shadow:0 10px 34px rgba(11,32,64,.08);
  --shadow-lg:0 22px 60px rgba(7,20,39,.14);
  --wrap:1200px;
  --head-h:74px;
}
*,*::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:76px 0}
.section-soft{background:var(--bg-soft)}
.section-dark{background:var(--brand-dark);color:#dbe6f5}
.mt-0{margin-top:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:8px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .25s;white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 8px 22px rgba(0,102,255,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,102,255,.38)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{transform:translateY(-2px)}
.btn-outline{border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:var(--head-h);
  background:rgba(7,20,39,.55);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);transition:background .3s,box-shadow .3s;
}
.site-header.scrolled{background:#fff;box-shadow:0 4px 20px rgba(11,32,64,.08);border-bottom-color:var(--line)}
.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:38px;width:auto;max-width:220px;object-fit:contain;display:block}
/* 品牌名与 LOGO 垂直居中对齐（英文副标题已去掉，字号加大） */
.logo-text{display:flex;align-items:center;line-height:1}
/* 品牌名用站点主色红（与顶部电话、底部拨号项一致），深浅两种头部背景都用同一个红 */
.logo-text b{font-size:22px;letter-spacing:.02em;color:#e60012;transition:color .3s}

.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  display:block;padding:9px 15px;border-radius:7px;font-size:15px;color:#dbe6f5;font-weight:500;
  transition:color .25s,background .25s;
}
.site-header.scrolled .main-nav a{color:var(--ink-2)}
.main-nav a:hover,.main-nav a.on{color:var(--brand-2);background:rgba(255,255,255,.08)}
.site-header.scrolled .main-nav a:hover,.site-header.scrolled .main-nav a.on{color:var(--brand);background:var(--bg-soft)}

/* 顶部日期 / 星期 / 时间（位于导航与联系电话之间） */
.head-clock{
  display:flex;align-items:center;gap:6px;flex-shrink:0;white-space:nowrap;
  font-size:13px;color:#cfe0f5;letter-spacing:.01em;transition:color .3s;
}
.head-clock svg{
  width:15px;height:15px;flex-shrink:0;color:currentColor;opacity:.85;
  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:#7fd0ff;font-weight:600;font-variant-numeric:tabular-nums;
  padding-left:7px;margin-left:1px;border-left:1px solid rgba(255,255,255,.22);
  transition:color .3s,border-color .3s;
}
/* 滚动后 header 变白底，时钟改为深灰 + 品牌蓝时间 */
.site-header.scrolled .head-clock{color:#6b7a8f}
.site-header.scrolled .head-clock .hc-time{color:var(--brand);border-left-color:var(--line)}

/* 顶部联系电话：红色突出显示（滚动前后都保持红色） */
.header-tel{
  display:flex;align-items:center;gap:7px;font-weight:700;font-size:16px;white-space:nowrap;
  color:#ff4d4f;letter-spacing:.01em;
}
.header-tel svg{color:currentColor;flex-shrink:0}
.site-header.scrolled .header-tel{color:#e60012;text-shadow:0 1px 0 rgba(255,255,255,.6)}
/* 汉堡按钮：加半透明深色底，保证在任意背景（含浅色页面横幅）上都看得见 */
.nav-toggle{
  display:none;width:44px;height:38px;border:0;cursor:pointer;padding:8px;margin-left:auto;
  background:rgba(7,20,39,.42);border-radius:9px;
}
.site-header.scrolled .nav-toggle{background:transparent}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px;margin:5px 0;transition:transform .3s,opacity .3s;box-shadow:0 1px 2px rgba(0,0,0,.4)}
.site-header.scrolled .nav-toggle span{background:var(--ink)}
.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(7,20,39,.45);z-index:110}

/* ---------- 首页 Hero ---------- */
.hero{
  position:relative;min-height:620px;display:flex;align-items:center;
  background:radial-gradient(1200px 600px at 78% 10%,rgba(0,212,255,.20),transparent 60%),
           radial-gradient(900px 500px at 10% 90%,rgba(0,102,255,.22),transparent 60%),
           linear-gradient(135deg,#06203f 0%,#08294d 55%,#05203c 100%);
  overflow:hidden;color:#eaf2ff;padding-top:var(--head-h);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(circle at 60% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 60% 40%,#000 30%,transparent 78%);
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,212,255,.22),transparent 65%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:64px 24px 76px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(0,212,255,.12);border:1px solid rgba(0,212,255,.32);color:#8fe3ff;font-size:13px;margin-bottom:22px;
}
.hero-tag em{width:6px;height:6px;border-radius:50%;background:#00d4ff;display:inline-block;font-style:normal}
.hero h1{font-size:44px;line-height:1.22;letter-spacing:.005em;color:#fff;margin-bottom:18px}
.hero h1 .hl{background:linear-gradient(120deg,#00d4ff,#4d9dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16px;color:#b7cbe6;max-width:560px;margin-bottom:30px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px}
.hero-stats div strong{display:block;font-size:30px;color:#fff;line-height:1.2;font-weight:700}
.hero-stats div span{font-size:13px;color:#8fa9c8}
.hero-visual{position:relative}
/* Hero 右侧：IT 办公场景实拍图 */
.hero-photo{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:4/3;background:#0a1c33;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 28px 70px rgba(2,12,28,.55);
}
.hero-photo img{width:100%;height:100%;object-fit:cover;display:block}
/* 蓝色调叠加，让照片与深蓝 Hero 融合成一体 */
.hero-photo::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(140deg,rgba(0,102,255,.30),rgba(0,212,255,.10) 46%,rgba(4,18,38,.48));
  mix-blend-mode:multiply;
}
/* 内侧压暗，边缘不刺眼 */
.hero-photo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 70px 12px rgba(4,18,38,.55);
}
.float-chip{
  position:absolute;background:#fff;color:var(--ink);border-radius:10px;padding:10px 14px;font-size:13px;font-weight:600;
  box-shadow:var(--shadow);display:flex;align-items:center;gap:8px;
}
.float-chip.c1{left:-18px;top:-18px}
.float-chip.c2{right:-14px;bottom:-18px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block}

/* ---------- 区块标题 ---------- */
.sec-head{text-align:center;max-width:720px;margin:0 auto 46px}
.sec-head h2{font-size:30px;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15px}
.section-dark .sec-head p{color:#90a9c6}
.sec-head .kicker{
  display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--brand);font-weight:700;margin-bottom:10px;
}
.section-dark .sec-head .kicker{color:var(--brand-2)}

/* ---------- 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}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 26px;
  transition:all .3s;position:relative;overflow:hidden;
  display:flex;align-items:center;gap:20px;
}
.svc-card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .35s;
}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.svc-card:hover::after{width:100%}
.svc-no{
  position:absolute;right:18px;top:12px;font-size:30px;font-weight:700;line-height:1;
  color:rgba(13,37,71,.07);letter-spacing:.02em;pointer-events:none;
}
.svc-icon{
  width:130px;height:130px;border-radius:26px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  background:linear-gradient(135deg,rgba(0,102,255,.12),rgba(0,212,255,.20));color:var(--brand);
  box-shadow:inset 0 0 0 1px rgba(0,102,255,.10);
}
.svc-icon svg{width:64px;height:64px}
/* 后台上传的图片图标：按 130×130 完整显示，不裁切 */
.svc-icon img{width:130px;height:130px;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：加大版卡片 ---------- */
.svc-lg{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.svc-lg .svc-card{
  padding:34px 36px;border-radius:16px;gap:26px;align-items:flex-start;min-height:212px;
  box-shadow:0 2px 10px rgba(13,37,71,.04);
}
.svc-lg .svc-card::after{height:4px}
.svc-lg .svc-card:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 44px rgba(13,37,71,.12);
}
.svc-lg .svc-no{
  right:24px;top:16px;font-size:46px;font-weight:800;
  color:rgba(13,37,71,.06);letter-spacing:-.02em;
}
.svc-lg .svc-icon{
  width:130px;height:130px;border-radius:26px;transition:all .35s;
  background:linear-gradient(135deg,rgba(0,102,255,.10),rgba(0,212,255,.18));
}
.svc-lg .svc-icon svg{width:64px;height:64px}
.svc-lg .svc-icon img{width:130px;height:130px}
.svc-lg .svc-card:hover .svc-icon{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 10px 24px rgba(0,102,255,.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)}
.svc-lg .svc-go{
  width:48px;height:48px;align-self:center;
  box-shadow:inset 0 0 0 1px rgba(0,102,255,.12);
}

/* ---------- 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 12px 12px 0;padding:22px 26px;margin-bottom:30px;
  box-shadow:0 2px 10px rgba(13,37,71,.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:var(--r);overflow:hidden;transition:all .3s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d2547}
.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:rgba(0,102,255,.9);color:#fff;
  font-size:12px;padding:4px 10px;border-radius:6px;
}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body p{color:var(--muted);font-size:14px}

/* ---------- 新闻（左图右文 · 两列紧凑列表） ---------- */
.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:linear-gradient(135deg,#0d2547,#14406f);
}
.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:#93a1b5}
.news-card p{
  margin-top:7px;color:#7b8a9e;font-size:13px;line-height:1.75;min-height:3.5em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- 资讯中心列表（单列大图 + 虚线分隔） ---------- */
.news-list{border-top:1px dashed #dfe6ef}
.news-row{padding:26px 0;border-bottom:1px dashed #dfe6ef}
.news-row-link{display:grid;grid-template-columns:230px 1fr;gap:26px;align-items:start}
.news-row-thumb{
  width:230px;aspect-ratio:3/2;overflow:hidden;border-radius:4px;
  background:linear-gradient(135deg,#0d2547,#14406f);
}
.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)}
.news-row:hover h3{color:var(--brand)}
.news-row p{margin-top:12px;font-size:13.5px;line-height:1.85;color:#6b7a8d}
.news-row p .more{color:#8b98a8;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:#93a1b5}

/* ---------- 后台：上传成功后提醒还需点保存 ---------- */
@keyframes upHint{
  0%,100%{box-shadow:0 0 0 0 rgba(0,102,255,0)}
  50%{box-shadow:0 0 0 4px rgba(0,102,255,.35)}
}
.btn.up-hint{animation:upHint 1.1s ease-in-out 3}

/* ---------- 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:8px;font-size:14px;background:#fff;color:var(--ink-2);
}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager span.cur{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager span.dis{color:#b7c1cf}

/* ---------- 面包屑 ---------- */
.page-banner{
  background:linear-gradient(120deg,#08294d,#0b3a6b 60%,#072b50);
  color:#fff;padding:calc(var(--head-h) + 54px) 0 54px;position:relative;overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(circle at 75% 30%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 75% 30%,#000 20%,transparent 75%);
}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{font-size:32px;margin-bottom:10px}
.page-banner p{color:#a9c3e0;font-size:15px}
.crumb{font-size:13px;color:#8fb3d9;margin-bottom:14px}
.crumb a{color:#8fb3d9}
.crumb a:hover{color:#fff}
.crumb span{margin:0 7px;opacity:.6}

/* ---------- 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:10px;margin:12px 0}
.article-body a{color:var(--brand-2);text-decoration:underline}
.article-body a:hover{opacity:.85}
.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:#0d2547;color:#e8eef7;padding:16px 18px;border-radius:10px;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(--ink-3);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-2);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)}

/* ---------- 侧边栏 ---------- */
.layout-side{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:start}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-bottom:20px}
.side-box h3{font-size:16px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.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 12px;border-radius:7px;color:var(--ink-2);font-size:14px}
.cate-list li a:hover,.cate-list li a.on{background:var(--bg-soft);color:var(--brand);font-weight:600}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.info-card{
  display:flex;gap:16px;padding:20px;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:16px;
}
.info-card .ic{width:44px;height:44px;border-radius:10px;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(--err);font-style:normal}
.input,.textarea,select.input{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;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(0,102,255,.12)}
.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:8px;border:1px solid var(--line);cursor:pointer;background:#0d2547}
.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:8px;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}

/* ---------- 首页特性条 ---------- */
.feature-strip{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:36px 0}
.feature-item{display:flex;gap:14px;align-items:flex-start}
.feature-item .fi{width:42px;height:42px;border-radius:10px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand);flex-shrink:0}
.feature-item h4{font-size:15px;margin-bottom:3px}
.feature-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.flow-item{text-align:center;position:relative}
.flow-item .num{
  width:56px;height:56px;margin:0 auto 14px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:20px;font-weight:700;
}
.flow-item h4{font-size:15px;margin-bottom:6px}
.flow-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 留言列表 ---------- */
.msg-item{border:1px solid var(--line);border-radius:var(--r);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}
/* 留言回复样式已移除：留言不再提供回复，也不在前台展示 */

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(120deg,#0066ff,#00a3ff 60%,#00d4ff);color:#fff;padding:52px 0}
.cta-inner{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-text h2{font-size:26px;margin-bottom:8px}
.cta-text p{color:rgba(255,255,255,.88);font-size:15px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#b9c9de;padding:64px 0 0}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr 148px;gap:32px;padding-bottom:44px}
.footer-col h3{font-size:16px;color:#fff;margin-bottom:16px}
.footer-col>p{font-size:14px;line-height:1.8;color:#93aac6}
.f-small{font-size:13px;color:#7d93ae;margin-top:8px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#93aac6}
.footer-links a:hover{color:#00d4ff}
.contact-list li{font-size:14px;margin-bottom:12px;color:#93aac6;display:flex;gap:10px}
.contact-list span{color:#5f7a99;flex-shrink:0;width:38px}
.footer-qr h3{text-align:center}
.footer-qr .qr-box{
  width:130px;height:130px;margin:0 auto 10px;padding:7px;background:#fff;border-radius:12px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.18);
}
.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,.35);border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:#6f87a6;font-size:12px;text-align:center;padding:10px;line-height:1.6;
}
.footer-qr .qr-tip{display:block;font-size:12.5px;color:#7d93ae;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0}
.footer-bottom p{font-size:13px;color:#7d93ae;text-align:center}
/* 底部抓取入口：网站地图 / XML Sitemap / AI 摘要 */
.f-links{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;
  margin-top:10px;font-size:12.5px;color:#5f7a99;
}
.f-links a{color:#6f87a6;transition:color .2s}
.f-links a:hover{color:#00d4ff}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,102,255,.35);opacity:0;pointer-events:none;transition:opacity .3s;z-index:100;
}
.to-top.show{opacity:1;pointer-events:auto}

/* ---------- 移动端底部导航（默认隐藏，窄屏显示） ---------- */
.m-tabbar{display:none}

/* ---------- 后台 ---------- */
.admin-wrap{display:flex;min-height:100vh;background:#f2f5f9}
.admin-side{
  width:216px;flex-shrink:0;background:#08294d;color:#c3d5ea;padding:0 0 30px;
  position:fixed;top:0;bottom:0;left:0;overflow-y:auto;
}
.admin-side .as-logo{padding:22px 22px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.admin-side .as-logo b{display:block;color:#fff;font-size:16px;letter-spacing:.04em}
.admin-side .as-logo span{font-size:11px;color:#7fa0c4;letter-spacing:.14em}
.admin-side .as-nav{padding:14px 12px}
.admin-side .as-nav a{
  display:flex;align-items:center;gap:9px;padding:10px 14px;border-radius:8px;
  color:#b6cbe4;font-size:14.5px;margin-bottom:3px;
}
.admin-side .as-nav a:hover,.admin-side .as-nav a.on{background:rgba(0,212,255,.14);color:#fff}
.admin-main{flex:1;margin-left:216px;padding:0 0 40px}
.admin-topbar{
  height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;
  justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:50;
}
.admin-topbar .at-user{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--ink-2)}
.admin-content{padding:26px 28px}
.admin-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.admin-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.admin-card b{display:block;font-size:13px;color:var(--muted);font-weight:500;margin-bottom:6px}
.admin-card strong{font-size:26px;color:var(--brand)}
.admin-panel{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:22px}
.admin-panel .ap-head{padding:16px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.admin-panel .ap-head h2{font-size:16px}
.admin-panel .ap-body{padding:20px 22px}
table.admin-table{width:100%;border-collapse:collapse;font-size:14px}
table.admin-table th,table.admin-table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
table.admin-table th{background:var(--bg-soft);font-weight:600;color:var(--ink-2);white-space:nowrap}
table.admin-table tr:hover td{background:#fafcff}
.table-scroll{overflow-x:auto}
.tag-ok{display:inline-block;padding:2px 9px;border-radius:5px;background:rgba(11,164,92,.12);color:#0a7a45;font-size:12px}
.tag-no{display:inline-block;padding:2px 9px;border-radius:5px;background:rgba(120,132,150,.14);color:#6b7a90;font-size:12px}
.admin-actions a{margin-right:8px;color:var(--brand);font-size:13px}
.admin-actions a.del{color:var(--err)}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}
.toolbar .input{width:auto;min-width:180px}

/* 后台上传控件 */
.up-row{display:flex;gap:10px;align-items:center}
.up-row .input{flex:1;min-width:0}
.up-row .btn{padding:8px 16px;font-size:14px}
.up-preview{
  margin-top:10px;padding:10px;border:1px dashed var(--line);border-radius:8px;
  background:#fafbfe;display:inline-block;line-height:0;
}
.up-preview img{max-height:96px;max-width:220px;width:auto;height:auto;border-radius:4px}
.up-preview.hide{display:none}

/* 登录页 */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(800px 500px at 80% 10%,rgba(0,212,255,.18),transparent 60%),
             linear-gradient(135deg,#06203f,#0a2c53 60%,#05192f);
}
.login-box{width:100%;max-width:400px;background:#fff;border-radius:16px;padding:38px 34px;box-shadow:var(--shadow-lg)}
.login-box h1{font-size:22px;text-align:center;margin-bottom:6px}
.login-box .lb-sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:26px}
.login-box .form-row .input{padding:12px 14px}

/* ---------- FAQ（两列卡片） ---------- */
.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:var(--r);overflow:hidden;transition:all .25s;
  align-self:start;
}
.faq-item:hover{border-color:rgba(0,102,255,.35)}
.faq-item[open]{box-shadow:var(--shadow);border-color:transparent}
.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:var(--brand);background:rgba(0,102,255,.10);
  padding:3px 8px;border-radius:6px;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:#fff;border:1px dashed rgba(0,102,255,.35);border-radius:var(--r);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（无 JS 时保持可见） ---------- */
.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)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:520px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .layout-side{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .admin-cards{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  /* 手机菜单：从顶部整条下拉的全宽面板（替代原来的右侧抽屉） */
  .main-nav{
    position:fixed;left:0;right:0;top:var(--head-h);bottom:auto;width:auto;max-width:none;
    background:#fff;margin-left:0;z-index:115;
    padding:6px 20px 14px;border-radius:0 0 18px 18px;
    box-shadow:0 18px 38px rgba(7,20,39,.20);
    max-height:calc(100vh - var(--head-h) - 16px);overflow-y:auto;
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:transform .26s ease,opacity .26s ease,visibility .26s;
  }
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav li + li{border-top:1px solid var(--line)}
  .main-nav a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    color:var(--ink-2);padding:16px 2px;font-size:16.5px;font-weight:500;border-radius:0;
  }
  .main-nav a::after{
    content:"";width:7px;height:7px;flex-shrink:0;
    border-right:1.5px solid #c6d2e2;border-top:1.5px solid #c6d2e2;transform:rotate(45deg);
  }
  .site-header .main-nav a:hover,.site-header .main-nav a.on{color:var(--brand);background:none}
  .site-header .main-nav a.on::after{border-color:var(--brand)}
  .site-header .main-nav a:active{background:var(--bg-soft)}
  .nav-mask.show{display:block}
  /* 手机端顶部时钟：收窄间距，隐藏日期，只留星期 + 时间 */
  .header-inner{gap:14px}
  .head-clock{gap:5px;font-size:12px}
  .head-clock .hc-date{display:none}
  .head-clock .hc-time{padding-left:6px}
  /* 手机上保留红色联系电话（字号缩小，图标隐藏以节省空间） */
  .header-tel{font-size:13px;gap:4px}
  .header-tel svg{width:13px;height:13px}
  .hero{min-height:auto}
  .hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .hero-photo{aspect-ratio:16/11;border-radius:16px}
  .float-chip{padding:8px 11px;font-size:12px;border-radius:8px}
  .float-chip.c1{left:-8px;top:-10px}
  .float-chip.c2{right:-6px;bottom:-10px}
  .section{padding:52px 0}
  .sec-head h2{font-size:24px}
  .page-banner{padding:calc(var(--head-h) + 36px) 0 36px}
  .page-banner h1{font-size:24px}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr}
  .svc-card{padding:22px 20px;gap:16px}
  .svc-icon{width:100px;height:100px;border-radius:22px}
  .svc-icon svg{width:48px;height:48px}
  .svc-icon img{width:100px;height:100px}
  .svc-lg{grid-template-columns:1fr;gap:18px}
  .svc-lg .svc-card{padding:26px 24px;gap:20px}
  .svc-lg .svc-icon{width:100px;height:100px;border-radius:22px}
  .svc-lg .svc-icon svg{width:48px;height:48px}
  .svc-lg .svc-icon img{width:100px;height:100px}
  .svc-lg .svc-card h3{font-size:19px}
  .svc-lg .svc-no{font-size:34px}
  .admin-side{position:static;width:100%;height:auto;padding:0 0 10px}
  .admin-main{margin-left:0}
  .admin-side .as-nav{display:flex;flex-wrap:wrap;gap:6px;padding:12px}
  .admin-side .as-nav a{margin:0}
  /* 移动端底部导航 */
  .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(7,20,39,.08);
    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;
  }
  /* 线性描边图标（细线风格，比原来的实心色块更清爽） */
  .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;
  }
  /* 选中项：图标外加一块淡蓝圆角底 */
  .m-tabbar a::before{
    content:"";position:absolute;top:0;left:50%;margin-left:-17px;
    width:34px;height:34px;border-radius:12px;background:transparent;transition:background .25s;
  }
  .m-tabbar a.on{color:var(--brand);font-weight:600}
  .m-tabbar a.on::before{background:rgba(0,102,255,.12)}
  .m-tabbar a.on svg{stroke-width:2}
  /* 「电话」项：点击直接拨号，用红色与其他项区分（选中时仍按选中态显示） */
  .m-tabbar a.tab-tel{color:#e60012}
  .m-tabbar a.tab-tel::before{background:rgba(230,0,18,.10)}
  .m-tabbar a.tab-tel svg{stroke-width:1.9}
  .m-tabbar a.tab-tel.on{color:var(--brand);font-weight:600}
  .m-tabbar a.tab-tel.on::before{background:rgba(0,102,255,.12)}
  body{padding-bottom:56px}
  .to-top{bottom:72px}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .hero-inner{padding-left:16px;padding-right:16px}
  /* 手机系统状态栏自带时间，顶部时钟让位给电话与菜单按钮，避免挤压 */
  .head-clock{display:none}
  .header-inner{gap:9px}
  .logo-text b{font-size:19px}
  .header-tel svg{display:none}
  .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:20px 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}
  .svc-lg .svc-card{padding:22px 20px;gap:16px}
  .svc-icon{width:78px;height:78px;border-radius:18px}
  .svc-icon svg{width:38px;height:38px}
  .svc-icon img{width:78px;height:78px}
  .svc-lg .svc-icon{width:78px;height:78px;border-radius:18px}
  .svc-lg .svc-icon svg{width:38px;height:38px}
  .svc-lg .svc-icon img{width:78px;height:78px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .flow-grid{grid-template-columns:1fr 1fr}
  .footer-inner{grid-template-columns:1fr;gap:26px}
  .admin-cards{grid-template-columns:1fr}
  .article-title{font-size:22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
/* 极窄屏（≤360px）：压缩头部间距，保证电话与菜单按钮不被挤扁 */
@media (max-width:360px){
  .header-inner{gap:6px}
  .logo-text b{font-size:18px}
}