/* ==========================================================================
   langfang_design_airlink  — 临空数智港 · 廊坊
   全深色暗黑风(dim16E) + 轻奢细线(dim15C) + 锐利动效 | CHART/GLOW/RIP/TYPE
   ========================================================================== */

:root{
  --primary:#00b8a9;          /* 临空科技青 */
  --primary-soft:#0fd6c5;
  --accent:#8fd8d3;           /* 合金银 */
  --bg:#0b1220;               /* 石墨蓝黑 */
  --bg-2:#0f1829;
  --bg-3:#131e33;
  --line:#22304d;
  --line-soft:#1a2740;
  --text:#e7eefc;
  --text-dim:#aab8d6;
  --text-muted:#7285a8;
  --white:#ffffff;
  --dark-on:#0b1220;
  --container:1200px;
  --radius:6px;               /* dim11H 不规则圆润: 局部单角/不规则 */
  --shadow:0 0 0 1px var(--line);   /* dim13A 无影扁平, 改细描边分层 */
  --ease-sharp:cubic-bezier(.7,0,.84,0); /* 锐利 */
  --dur:240ms;
}

*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-soft)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{line-height:1.25;margin:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.lf-main{display:block;min-width:0}
.lf-hero-copy{min-width:0}
.lf-logo-text{white-space:nowrap}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.lf-skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:var(--dark-on);padding:8px 16px;z-index:9999}
.lf-skip:focus{left:0}

/* ---------- 深色容器内所有文字/链接显式浅色 (§1.5) ---------- */
.lf-hero,.lf-stats,.lf-section--dark,.lf-cta-band,.lf-footer,
.lf-page-header,.lf-contact-card,.lf-header{color:var(--text)}
.lf-section--dark a,.lf-footer a,.lf-page-header a{color:var(--accent)}
.lf-section--dark a:hover,.lf-footer a:hover{color:var(--white)}

/* ============================ 头部导航 ============================ */
.lf-header{position:sticky;top:0;z-index:900;background:rgba(11,18,32,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.lf-header.is-scrolled{background:rgba(11,18,32,.94);border-bottom-color:var(--line)}
.lf-header-inner{max-width:var(--container);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:16px;height:68px}
.lf-logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:19px;white-space:nowrap}
.lf-logo svg{color:var(--primary)}
.lf-logo:hover{color:var(--white)}
.lf-nav{display:flex;align-items:center;flex-wrap:nowrap;gap:2px;margin-left:auto}
.lf-nav-link{color:var(--text-dim);font-size:15px;padding:10px;white-space:nowrap;display:inline-flex;align-items:center;gap:4px;border-radius:var(--radius);text-decoration:none}
.lf-nav-link:hover{color:var(--white)}
.lf-nav-link.is-active{color:var(--primary);background:rgba(0,184,169,.10)}
.lf-caret{transition:transform var(--dur) var(--ease-sharp)}
.lf-nav-item{position:relative}
.lf-nav-item:hover .lf-caret{transform:rotate(180deg)}
.lf-drop{position:absolute;top:100%;left:0;min-width:190px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:8px;display:none;z-index:950;box-shadow:0 20px 40px rgba(0,0,0,.45)}
.lf-nav-item:hover .lf-drop,.lf-nav-item:focus-within .lf-drop{display:block}
.lf-drop a{display:block;padding:9px 12px;color:var(--text-dim);border-radius:var(--radius);font-size:14px;white-space:nowrap}
.lf-drop a:hover{color:var(--white);background:rgba(0,184,169,.12)}
.lf-nav-cta{background:var(--primary);color:var(--dark-on) !important;font-size:15px;font-weight:600;padding:9px 16px;border-radius:var(--radius);white-space:nowrap;margin-left:8px;text-decoration:none}
.lf-nav-cta:hover{background:var(--primary-soft)}
.lf-tel-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;color:var(--accent);margin-left:6px;flex:none;text-decoration:none}
.lf-tel-btn:hover{border-color:var(--primary);color:var(--white)}
.lf-burger{display:none;width:42px;height:42px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;margin-left:auto}
.lf-burger span{width:20px;height:2px;background:var(--text);display:block}

/* ============================ 通用按钮 ============================ */
.lf-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 26px;border-radius:var(--radius);border:1px solid transparent;text-decoration:none;transition:transform var(--dur) var(--ease-sharp),background var(--dur),color var(--dur)}
.lf-btn-primary{background:var(--primary);color:var(--dark-on) !important}
.lf-btn-primary:hover{background:var(--primary-soft);color:var(--dark-on) !important;transform:translateY(-2px)}
.lf-btn-accent{background:var(--accent);color:var(--dark-on) !important}
.lf-btn-line{border-color:var(--line);color:var(--text)}
.lf-btn-line:hover{border-color:var(--primary);color:var(--white)}
.lf-btn-lg{font-size:17px;padding:15px 34px}

/* ============================ Hero (dim1E 深底几何粒子) ============================ */
.lf-hero{position:relative;background:radial-gradient(circle at 75% 18%,rgba(0,184,169,.22),transparent 45%),linear-gradient(160deg,var(--bg-2),var(--bg) 60%);padding:96px 0 84px;overflow:hidden;border-bottom:1px solid var(--line-soft)}
.lf-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(0,184,169,.18) 1px,transparent 1px);background-size:26px 26px;opacity:.35;pointer-events:none}
.lf-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.lf-hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin-bottom:18px;font-weight:600}
.lf-hero-eyebrow::before{content:"";width:22px;height:1px;background:var(--primary)}
.lf-hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:.01em;margin-bottom:20px}
.lf-hero h1 .lf-glow{color:var(--primary);text-shadow:0 0 22px rgba(0,184,169,.55)}
.lf-hero-sub{font-size:18px;color:var(--text-dim);max-width:520px;margin-bottom:32px}
.lf-hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.lf-hero-note{font-size:13px;color:var(--text-muted)}
/* hero 右侧: 数据可视化图表动效 (CHART), 非 4 格数字卡 */
.lf-hero-visual{position:relative;z-index:2}
.lf-score-card{background:rgba(15,24,41,.7);border:1px solid var(--line);border-radius:10px;padding:26px;backdrop-filter:blur(6px)}
.lf-score-card h3{font-size:15px;color:var(--text-dim);font-weight:600;margin-bottom:4px}
.lf-score-card .lf-score-big{font-size:40px;font-weight:800;color:var(--primary);margin-bottom:18px;line-height:1.1}
.lf-score-bars{display:flex;align-items:flex-end;gap:14px;height:150px}
.lf-score-bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:8px}
.lf-score-bar i{display:block;width:100%;max-width:44px;background:linear-gradient(180deg,var(--primary),rgba(0,184,169,.25));border-radius:4px 4px 0 0;transform-origin:bottom;transform:scaleY(0);transition:transform .8s var(--ease-sharp)}
.lf-score-bar span{font-size:12px;color:var(--text-muted)}
.lf-score-bar.is-up i{transform:scaleY(1)}
.lf-score-bar em{font-style:normal;font-size:13px;color:var(--accent);font-weight:600}

/* ============================ 信任条 (dim6D 深底贴hero下) ============================ */
.lf-stats{background:var(--bg-2);border-bottom:1px solid var(--line-soft)}
.lf-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.lf-stat{padding:34px 28px;text-align:center;border-left:1px solid var(--line-soft)}
.lf-stat:first-child{border-left:none}
.lf-stat-num{font-size:38px;font-weight:800;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums}
.lf-stat-num .lf-suffix{color:var(--accent);font-size:26px;margin-left:2px}
.lf-stat-label{color:var(--text-dim);font-size:15px;margin-top:6px}
.lf-stat-desc{color:var(--text-muted);font-size:13px;margin-top:2px}

/* ============================ 区块 ============================ */
.lf-section{padding:88px 0}
.lf-section--dark{background:var(--bg-2)}
.lf-section-head{margin-bottom:44px}
.lf-section-head h2{font-size:32px;font-weight:800;display:flex;align-items:center;gap:14px}
.lf-section-head h2 .lf-kicker{font-family:"KaiTi","STKaiti",serif;color:var(--accent);font-size:15px;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:4px 14px;letter-spacing:.06em}
.lf-section-head p{color:var(--text-dim);margin-top:12px;max-width:640px}
.lf-section-head--center{text-align:center}
.lf-section-head--center p{margin:12px auto 0}

/* ============================ 核心业务卡 (dim2K 手风琴横排, 一行4卡) ============================ */
.lf-biz{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.lf-biz-card{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;overflow:hidden;transition:transform var(--dur) var(--ease-sharp),border-color var(--dur)}
.lf-biz-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),transparent);opacity:0;transition:opacity var(--dur)}
.lf-biz-card:hover{transform:translateY(-6px);border-color:rgba(0,184,169,.5)}
.lf-biz-card:hover::before{opacity:1}
.lf-biz-ico{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(0,184,169,.10);color:var(--primary);margin-bottom:18px;border:1px solid var(--line)}
.lf-biz-card h3{font-size:19px;margin-bottom:10px}
.lf-biz-card p{color:var(--text-dim);font-size:14px;margin-bottom:16px}
.lf-biz-sub{border-top:1px solid var(--line-soft);padding-top:14px;margin-top:2px}
.lf-biz-sub a{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:13px;padding:5px 0}
.lf-biz-sub a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary)}
.lf-biz-sub a:hover{color:var(--white)}

/* ============================ 服务流程 (dim4E 上下双层泳道, §1.21 通用5步) ============================ */
.lf-process{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;position:relative}
.lf-process::before{content:"";position:absolute;top:28px;left:5%;right:5%;height:1px;background:var(--line);z-index:0}
.lf-step{position:relative;z-index:1;text-align:center;padding:0 8px}
.lf-step-dot{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:var(--bg-2);border:1px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
.lf-step h3{font-size:16px;margin-bottom:8px}
.lf-step p{color:var(--text-dim);font-size:13px}
.lf-step-desc{color:var(--text-muted);font-size:12px;margin-top:8px}

/* ============================ 资讯区 (dim3B 左大图右列表) ============================ */
.lf-news{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:stretch}
.lf-news-feature{background:var(--bg-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}
.lf-news-cover{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,rgba(0,184,169,.25),rgba(15,24,41,.9));display:flex;align-items:center;justify-content:center}
.lf-news-cover svg{width:110px;height:110px;color:rgba(0,184,169,.5)}
.lf-news-feature-body{padding:24px;flex:1}
.lf-news-feature-body h3{font-size:20px;margin-bottom:10px}
.lf-news-feature-body h3 a{color:var(--text)}
.lf-news-feature-body h3 a:hover{color:var(--primary)}
.lf-news-feature-body p{color:var(--text-dim);font-size:14px}
.lf-news-list{display:grid;grid-template-rows:repeat(6,1fr);gap:12px}
.lf-news-item{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:8px;padding:16px 18px;display:flex;align-items:center;gap:14px;min-width:0}
.lf-news-item .lf-news-date{flex:none;text-align:center;color:var(--accent);font-size:12px;border-right:1px solid var(--line-soft);padding-right:14px;font-weight:600}
.lf-news-item h3{font-size:15px;flex:1;min-width:0;overflow:hidden}
.lf-news-item h3 a{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}
.lf-news-item h3 a:hover{color:var(--primary)}

/* ============================ 案例 (静态兜底) ============================ */
.lf-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lf-case-card{background:var(--bg-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:transform var(--dur) var(--ease-sharp),border-color var(--dur)}
.lf-case-card:hover{transform:translateY(-5px);border-color:rgba(0,184,169,.5)}
.lf-case-cover{aspect-ratio:16/9;background:linear-gradient(135deg,rgba(0,184,169,.2),rgba(15,24,41,.9));display:flex;align-items:center;justify-content:center}
.lf-case-cover svg{width:64px;height:64px;color:rgba(0,184,169,.5)}
.lf-case-body{padding:20px}
.lf-case-body h3{font-size:17px;margin-bottom:8px}
.lf-case-body p{color:var(--text-dim);font-size:14px;margin-bottom:10px}
.lf-case-meta{display:flex;gap:8px;flex-wrap:wrap}
.lf-case-tag{font-size:12px;color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:3px 10px}

/* ============================ CTA (dim5J 悬浮吸底转化条 + 沉浸深色全宽) ============================ */
.lf-cta-band{background:linear-gradient(120deg,rgba(0,184,169,.16),transparent 55%),var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:60px 0}
.lf-cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.lf-cta-band h2{font-size:28px;font-weight:800}
.lf-cta-band p{color:var(--text-dim);margin-top:8px}
.lf-cta-band .lf-btn{flex:none}

/* ============================ 页脚 ============================ */
.lf-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0}
.lf-footer-grid{max-width:var(--container);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:44px}
.lf-footer-brand .lf-footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.lf-footer-logo svg{color:var(--primary)}
.lf-footer-logo strong{font-size:19px;color:var(--text)}
.lf-footer-word{color:var(--text-dim);font-size:14px;margin-bottom:16px}
.lf-footer-contact{display:flex;flex-direction:column;gap:6px}
.lf-footer-contact a{color:var(--accent)}
.lf-footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px}
.lf-footer-col a{display:block;color:var(--text-dim);font-size:14px;padding:5px 0}
.lf-footer-col a:hover{color:var(--primary)}
.lf-footer-cta h4{font-size:16px;color:var(--text);margin-bottom:10px}
.lf-footer-cta p{color:var(--text-dim);font-size:14px;margin-bottom:18px}
.lf-footer-bottom{max-width:var(--container);margin:0 auto;padding:0 24px;border-top:1px solid var(--line-soft);padding-top:22px;padding-bottom:26px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.lf-copy{color:var(--text-muted);font-size:13px}
.lf-links{display:flex;gap:20px;flex-wrap:wrap}
.lf-links a{color:var(--text-muted);font-size:13px}
.lf-links a:hover{color:var(--accent)}
.lf-beian{display:flex;gap:16px;flex-wrap:wrap}
.lf-beian a{color:var(--text-muted);font-size:13px}
.lf-beian a:hover{color:var(--accent)}

/* ============================ 列表/详情/搜索 通用 ============================ */
.lf-page-header{background:linear-gradient(120deg,rgba(0,184,169,.14),transparent 60%),var(--bg-2);border-bottom:1px solid var(--line-soft);padding:52px 0}
.lf-breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:14px}
.lf-breadcrumb a{color:var(--text-muted)}
.lf-breadcrumb a:hover{color:var(--primary)}
.lf-page-header h1{font-size:32px;font-weight:800}
.lf-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:52px 0;align-items:start}
.lf-main-col{min-width:0}
.lf-side-col{min-width:0}
.lf-card{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;padding:22px;margin-bottom:24px}
.lf-card h3{font-size:16px;color:var(--text);margin-bottom:16px;font-weight:700}
.lf-list-item{min-width:0;overflow:hidden}
.lf-list-item a{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-dim);font-size:14px;padding:7px 0}
.lf-list-item a:hover{color:var(--primary)}

/* 分页 */
.lf-pagination{display:flex;gap:8px;margin-top:36px;flex-wrap:wrap}
.lf-pagination a,.lf-pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius);color:var(--text-dim);font-size:14px}
.lf-pagination a:hover{border-color:var(--primary);color:var(--white)}
.lf-pagination .is-current{background:var(--primary);border-color:var(--primary);color:var(--dark-on);font-weight:700}

/* 文章详情 */
.lf-article-meta{display:flex;gap:18px;color:var(--text-muted);font-size:14px;margin-top:12px;flex-wrap:wrap}
.lf-article-body{margin-top:32px;color:var(--text);font-size:16px}
.lf-article-body p{margin:0 0 20px;color:var(--text-dim)}
.lf-article-body h2,.lf-article-body h3{color:var(--text);margin:28px 0 14px}
.lf-article-body img{border-radius:8px}
.lf-article-body table{display:block;overflow-x:auto;border-collapse:collapse;width:100%;margin:20px 0}
.lf-article-body table td,.lf-article-body table th{border:1px solid var(--line);padding:9px 14px;color:var(--text-dim)}
.lf-article-body a{word-break:break-all}
.lf-prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.lf-prevnext a{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;padding:16px 20px;color:var(--text-dim);font-size:14px;min-width:0}
.lf-prevnext a:hover{border-color:var(--primary);color:var(--white)}
.lf-prevnext a span{display:block;font-size:12px;color:var(--text-muted);margin-bottom:4px}
.lf-related{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.lf-related a{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;padding:16px 20px;color:var(--text-dim);min-width:0}
.lf-related a h4{font-size:15px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px}
.lf-related a:hover{border-color:var(--primary)}

/* 标签云 */
.lf-tags{display:flex;flex-wrap:wrap;gap:8px}
.lf-tags a{display:inline-block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;color:var(--text-dim);border:1px solid var(--line);border-radius:999px;padding:6px 14px;text-decoration:none}
.lf-tags a:hover{border-color:var(--primary);color:var(--white)}

/* 表单 */
.lf-form{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;padding:30px}
.lf-form h3{font-size:20px;margin-bottom:8px}
.lf-form p{color:var(--text-dim);font-size:14px;margin-bottom:22px}
.lf-form label{display:block;font-size:14px;color:var(--text-dim);margin-bottom:18px}
.lf-form input[type=text],.lf-form input[type=tel],.lf-form input[type=email],.lf-form textarea{
  width:100%;margin-top:8px;padding:12px 14px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);color:var(--text);font-size:15px;font-family:inherit;
}
.lf-form input:focus,.lf-form textarea:focus{outline:none;border-color:var(--primary)}
.lf-form textarea{resize:vertical;min-height:120px}
.lf-form .lf-btn{margin-top:6px;width:100%}
.lf-flash{background:rgba(0,184,169,.12);border:1px solid var(--primary);color:var(--accent);border-radius:6px;padding:12px 16px;margin-bottom:18px;font-size:14px}

/* 关于/联系 信息卡 */
.lf-contact-card{background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:22px;margin-bottom:24px}
.lf-contact-card h4{font-size:16px;color:var(--text);margin-bottom:14px}
.lf-contact-card p{color:var(--text-dim);font-size:14px;margin-bottom:8px}
.lf-contact-card p a{color:var(--accent)}

/* services 页分节锚点 */
.lf-biz-block{padding:60px 0;border-bottom:1px solid var(--line-soft)}
.lf-biz-block:last-child{border-bottom:none}
.lf-biz-block-head{display:flex;align-items:center;gap:18px;margin-bottom:20px}
.lf-biz-block-head svg{color:var(--primary)}
.lf-biz-block-head h2{font-size:26px}
.lf-biz-block p{color:var(--text-dim);margin-bottom:18px}
.lf-biz-chips{display:flex;flex-wrap:wrap;gap:10px}
.lf-biz-chips a{display:inline-block;font-size:14px;color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:7px 16px;text-decoration:none}
.lf-biz-chips a:hover{border-color:var(--primary);color:var(--white)}

/* county/sitemap */
.lf-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.lf-grid-item{background:var(--bg-2);border:1px solid var(--line-soft);border-radius:8px;padding:18px}
.lf-grid-item a{color:var(--text);font-size:15px;display:block}
.lf-grid-item a:hover{color:var(--primary)}

/* 404 */
.lf-404{padding:100px 0;text-align:center}
.lf-404 .lf-404-num{font-size:110px;font-weight:800;color:var(--primary);line-height:1}
.lf-404 h2{font-size:26px;margin:18px 0}
.lf-404 p{color:var(--text-dim);margin-bottom:28px}

/* ============================ 悬浮客服组件 (全站群统一品牌色) ============================ */
.zfkf{position:fixed;right:22px;bottom:22px;z-index:1200}
.zfkf-btns{display:flex;flex-direction:column;gap:12px}
.zfkf-btn{width:50px;height:50px;border-radius:50%;background:#155e6b;color:#fff;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;box-shadow:0 8px 20px rgba(0,0,0,.35);transition:transform var(--dur),background var(--dur)}
.zfkf-btn:hover{background:#1b7d8e;transform:translateY(-2px)}
.zfkf-top{background:rgba(21,94,107,.7)}
.zfkf-panel{position:fixed;right:22px;bottom:90px;z-index:1300}
.zfkf-mask{position:absolute;inset:0;background:rgba(0,0,0,.5)}
.zfkf-dialog{position:relative;width:260px;background:#fff;border-radius:12px;padding:22px;z-index:1}
.zfkf-dialog h5{font-size:16px;margin:0 0 14px;color:#222}
.zfkf-dialog img{border-radius:8px;margin:0 auto}
.zfkf-nocode{color:#888;text-align:center}
.zfkf-dialog-close{position:absolute;top:10px;right:10px;width:28px;height:28px;border:none;background:transparent;color:#888;cursor:pointer}

/* ============================ 滚动入场 ============================ */
.lf-reveal{opacity:0;transform:translateY(22px);transition:opacity .5s var(--ease-sharp),transform .5s var(--ease-sharp)}
.lf-reveal.is-visible{opacity:1;transform:none}
.no-js .lf-reveal{opacity:1;transform:none}

/* ============================ 响应式 (§2.10 两档断点) ============================ */
@media (max-width:992px){
  .lf-hero-inner{grid-template-columns:1fr;gap:32px}
  .lf-hero{padding:64px 0}
  .lf-biz{grid-template-columns:repeat(2,1fr)}
  .lf-news{grid-template-columns:1fr}
  .lf-news-list{grid-template-rows:auto}
  .lf-cases{grid-template-columns:repeat(2,1fr)}
  .lf-process{grid-template-columns:1fr;gap:24px}
  .lf-process::before{display:none}
  .lf-step{text-align:left;display:flex;gap:16px}
  .lf-step-dot{margin:0;flex:none}
  .lf-stats-grid{grid-template-columns:repeat(2,1fr)}
  .lf-stat:nth-child(3){border-left:none;border-top:1px solid var(--line-soft)}
  .lf-stat:nth-child(4){border-top:1px solid var(--line-soft)}
  .lf-footer-grid{grid-template-columns:1fr 1fr}
  .lf-layout{grid-template-columns:1fr}
  .lf-grid-3{grid-template-columns:repeat(2,1fr)}
  .lf-related{grid-template-columns:1fr}
}
@media (max-width:900px){
  .lf-burger{display:flex}
  .lf-nav{position:fixed;top:68px;left:0;right:0;background:var(--bg-2);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:16px 24px;gap:6px;display:none}
  .lf-nav.is-open{display:flex}
  .lf-nav-link{padding:14px 10px;font-size:16px}
  .lf-drop{position:static;display:block;border:none;box-shadow:none;background:transparent;padding-left:14px}
  .lf-nav-cta{margin:8px 0 0;text-align:center;padding:12px}
  .lf-tel-btn{margin-left:8px}
}
@media (max-width:640px){
  .container,.lf-header-inner{padding:0 16px}
  .lf-section{padding:56px 0}
  .lf-biz{grid-template-columns:1fr}
  .lf-cases{grid-template-columns:1fr}
  .lf-stats-grid{grid-template-columns:1fr}
  .lf-stat{border-left:none;border-top:1px solid var(--line-soft);padding:24px}
  .lf-stat:first-child{border-top:none}
  .lf-footer-grid{grid-template-columns:1fr}
  .lf-footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .lf-grid-3{grid-template-columns:1fr}
  .lf-prevnext{grid-template-columns:1fr}
  .lf-hero h1{font-size:30px}
  .lf-score-big{font-size:32px}
}

.lf-ripple{display:block}

/* prefers-reduced-motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .lf-reveal{opacity:1;transform:none}
  .lf-score-bar i{transform:scaleY(1)}
}

/* ===== tz-rich-text typography (auto-appended) ===== */
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article)>:first-child{margin-top:0}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article)>:last-child{margin-bottom:0}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) p{margin:0 0 1.05em;line-height:1.9}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h1,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h2{margin:1.6em 0 .7em;line-height:1.4;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h1{font-size:1.6em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h2{font-size:1.4em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h3{margin:1.4em 0 .6em;font-size:1.2em;line-height:1.45;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h4{margin:1.2em 0 .5em;font-size:1.08em;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h5,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) h6{margin:1.1em 0 .5em;font-size:1em;font-weight:700}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) ul,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) ol{margin:0 0 1.05em;padding-left:1.7em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) li{margin:.35em 0;line-height:1.8}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) img{max-width:100%;height:auto;border-radius:8px}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) figure{margin:1.2em 0}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) figcaption{margin-top:.5em;font-size:.85em;opacity:.7;text-align:center}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) blockquote{margin:1.2em 0;padding:.2em 0 .2em 1em;border-left:3px solid currentColor;opacity:.85}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.96em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) th,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) td{border:1px solid rgba(127,127,127,.3);padding:.5em .75em;text-align:left}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) th{font-weight:700;background:rgba(127,127,127,.06)}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) hr{margin:1.6em 0;border:0;border-top:1px solid rgba(127,127,127,.28)}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) pre{overflow:auto;padding:.8em 1em;border-radius:8px;background:rgba(127,127,127,.1);font-size:.92em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) code{font-size:.94em}
:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) strong,:where(.rich-text,.detail__content,.detail-content,.article-body,.article-content,.article__body,.article--body,.rich-content,.prose,.detail-body,.detail-body__content,.page-content,.content-card,.hd-article-body,.lf-article-body,.cq-article-body,.sq-article-body,.lh-article) b{font-weight:700}
:where(.rich-text) ul{list-style:disc}
:where(.rich-text) ol{list-style:decimal}
:where(.rich-text) a{text-decoration:underline;text-underline-offset:3px}

/* ===== tz-footer-legal (auto-appended) ===== */
.zf-legal-line a{color:inherit;text-decoration:none;opacity:.92}
.zf-legal-line a:hover{opacity:1;text-decoration:underline;text-underline-offset:3px}
.zf-legal-line .zf-legal-all{font-weight:600}
.zf-legal-line .zf-legal-copy{opacity:.95}
.zf-legal-line .zf-legal-addr{opacity:.82}
.zf-legal-line .zf-legal-police{text-decoration:none}
@media (max-width:640px){.zf-legal-line{column-gap:.55em;line-height:1.7}}