/* ============================================================
   上海企敬信息科技有限公司 qf-it.cn — 效果图设计系统
   主题：Tech Signal / 科技信号（浅色科技升级版）
   设计目标：在「工业信号」基础上注入科技感 ——
   霓虹青蓝（数据）× 信号橙（行动）、玻璃拟态、发光描边、
   Hero 扫描线 + 数据光点、插画辉光、流光按钮。
   ============================================================ */

/* —— 自托管得意黑（Smiley Sans）Display 字体 —— */
@font-face{
  font-family:"Smiley Sans";
  src:url("../fonts/SmileySans-Oblique.ttf.woff2") format("woff2");
  font-display:swap;
  font-weight:400;
  font-style:normal;
}

:root{
  /* 主色：深空墨蓝 / 冷白纸 / 信号橙 / 科技青 / 钢蓝 / 安全黄 */
  --ink:#0E1B22;
  --ink-2:#16282F;
  --ink-3:#1E3640;
  --paper:#F2F6F7;
  --paper-2:#E6ECEF;
  --signal:#E2601E;
  --signal-ink:#B8450F;
  --signal-soft:#FCEDE3;

  /* 科技青蓝（数据 / 描边 / 辉光） */
  --tech:#0E9FB8;
  --tech-bright:#19D3E6;
  --tech-ink:#0A6E80;
  --tech-soft:#E2F4F7;
  --tech-line:rgba(14,159,184,.35);

  --steel:#22455A;
  --steel-2:#356B82;
  --safety:#F2B33D;
  --line:#D7E0E2;
  --line-strong:#BFCCD0;
  --muted:#566670;
  --white:#FBFEFE;

  /* 字体 */
  --display:"Smiley Sans","PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --mono:ui-monospace,"SF Mono","SFMono-Regular","Cascadia Code",Consolas,"Liberation Mono","Courier New",monospace;

  /* 布局 & 形状 */
  --maxw:1200px;
  --gut:24px;
  --radius:3px;
  --radius-lg:8px;

  /* 阴影：真实光影 + 科技辉光 */
  --shadow-sm:0 1px 2px rgba(14,27,34,.06), 0 2px 10px rgba(14,27,34,.05);
  --shadow-md:0 10px 30px rgba(14,27,34,.10);
  --shadow-lg:0 22px 60px rgba(14,27,34,.18);
  --shadow-signal:0 12px 30px rgba(226,96,30,.30);
  /* 科技青辉光：用于卡片/面板/按钮的发光描边 */
  --glow-tech:0 0 0 1px var(--tech-line), 0 14px 40px rgba(25,211,230,.20);

  /* 动效 */
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background-color:var(--paper);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img,svg{max-width:100%;display:block;}

/* 全局柔光：科技青 + 信号橙 双色光场（无方格，纯光晕） */
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;
  background:
    radial-gradient(120% 80% at 12% -10%, rgba(14,159,184,.10) 0%, transparent 50%),
    radial-gradient(120% 80% at 88% -10%, rgba(226,96,30,.06) 0%, transparent 50%),
    radial-gradient(120% 80% at 50% 112%, rgba(14,27,34,.05) 0%, transparent 55%);
  pointer-events:none;
}

.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);}

/* ============ 顶部信号条 ============ */
.topbar{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.5px;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px;flex-wrap:wrap;}
.topbar .tag{color:var(--tech-bright);}
.topbar a{color:var(--paper);transition:color .2s var(--ease);}
.topbar a:hover{color:var(--tech-bright);}
.topbar .blink{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--tech-bright);
  margin-right:6px;box-shadow:0 0 0 0 rgba(25,211,230,.6);animation:pulse 2s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(25,211,230,.55);}70%{box-shadow:0 0 0 8px rgba(25,211,230,0);}100%{box-shadow:0 0 0 0 rgba(25,211,230,0);}}

/* ============ 页眉（玻璃 + 发光底边） ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(242,246,247,.82);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--tech-line);
  box-shadow:0 1px 0 rgba(255,255,255,.6), 0 6px 24px rgba(14,27,34,.05);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.brand{display:flex;align-items:center;gap:13px;}
.brand .mark{
  width:44px;height:44px;flex:0 0 auto;
  border:1.5px solid var(--ink);
  display:grid;place-items:center;
  font-family:var(--display);
  font-size:21px;line-height:1;color:var(--ink);
  position:relative;background:var(--white);
  box-shadow:var(--shadow-sm);
}
.brand .mark::before,.brand .mark::after{
  content:"";position:absolute;width:9px;height:9px;border:1.5px solid var(--tech);box-shadow:0 0 8px rgba(25,211,230,.5);
}
.brand .mark::before{top:-5px;left:-5px;border-right:0;border-bottom:0;}
.brand .mark::after{bottom:-5px;right:-5px;border-left:0;border-top:0;}
.brand .name{font-family:var(--display);font-size:21px;color:var(--ink);letter-spacing:1px;line-height:1.15;}
.brand .sub{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase;}

.nav{display:flex;gap:28px;align-items:center;}
.nav a{font-size:15px;color:var(--ink);position:relative;padding:6px 0;transition:color .2s var(--ease);}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:linear-gradient(90deg,var(--tech),var(--signal));transition:width .25s var(--ease);}
.nav a:hover::after,.nav a.active::after{width:100%;}
.nav a.active{color:var(--tech-ink);}

.header-cta{display:flex;align-items:center;gap:14px;}
.phone{
  font-family:var(--mono);font-size:16px;font-weight:700;color:var(--ink);
  letter-spacing:.5px;white-space:nowrap;transition:color .2s var(--ease);
}
.phone:hover{color:var(--tech);}

/* ============ 移动端汉堡按钮（仅窄屏显示） ============ */
.nav-toggle{
  display:none;
  width:42px;height:42px;flex:0 0 auto;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--tech-line);border-radius:var(--radius);
  cursor:pointer;padding:0;margin-left:2px;transition:.22s var(--ease);
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.24s var(--ease);box-shadow:0 0 6px rgba(25,211,230,.35);}
.nav-toggle:hover{border-color:var(--tech);box-shadow:0 0 16px rgba(25,211,230,.22);}
.site-header.nav-open .nav-toggle{border-color:var(--signal);}
.site-header.nav-open .nav-toggle span{background:var(--signal);box-shadow:0 0 6px rgba(226,96,30,.4);}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;transform:scaleX(.3);}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮（流光 + 科技辉光） ============ */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--sans);font-weight:700;font-size:15px;
  padding:12px 22px;border:1.5px solid var(--ink);background:var(--ink);color:var(--paper);
  cursor:pointer;transition:.22s var(--ease);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
}
.btn .arr{transition:transform .22s var(--ease);}
.btn:hover{
  background:linear-gradient(120deg,var(--signal),#F2872E);
  border-color:transparent;
  box-shadow:0 12px 30px rgba(226,96,30,.34), 0 0 24px rgba(25,211,230,.20);
}
.btn:hover .arr{transform:translateX(3px);}
.btn:active{transform:translateY(1px);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--tech);box-shadow:none;}
.btn--ghost:hover{background:var(--tech);color:var(--white);border-color:var(--tech);box-shadow:0 0 24px rgba(25,211,230,.30);}
.btn--signal{background:var(--signal);border-color:var(--signal);box-shadow:var(--shadow-signal);}
.btn--signal:hover{background:var(--signal-ink);border-color:var(--signal-ink);box-shadow:0 12px 30px rgba(226,96,30,.34);}
.btn--lg{padding:15px 30px;font-size:16px;}

/* ============ HERO（科技扫描线 + 数据光点） ============ */
.hero{
  position:relative;padding:72px 0 64px;border-bottom:1px solid var(--tech-line);overflow:hidden;
}
/* 双色光晕 + 数据光点 */
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(60% 90% at 88% 12%, rgba(226,96,30,.14), transparent 60%),
    radial-gradient(50% 70% at 6% 90%, rgba(14,159,184,.16), transparent 60%),
    radial-gradient(2px 2px at 18% 30%, rgba(25,211,230,.55), transparent 60%),
    radial-gradient(2px 2px at 76% 24%, rgba(226,96,30,.5), transparent 60%),
    radial-gradient(2px 2px at 60% 74%, rgba(25,211,230,.45), transparent 60%),
    radial-gradient(2px 2px at 34% 82%, rgba(25,211,230,.4), transparent 60%);
  pointer-events:none;
}
/* 缓慢竖向扫描线（HUD 科技感） */
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(180deg, transparent 0%, transparent 46%, rgba(25,211,230,.10) 50%, transparent 54%, transparent 100%);
  background-size:100% 230%;
  animation:scan 7s linear infinite;
  opacity:.9;
}
@keyframes scan{0%{background-position:0 0;}100%{background-position:0 -230%;}}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr;gap:54px;align-items:center;}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:3px;text-transform:uppercase;
  color:var(--tech-ink);display:flex;align-items:center;gap:10px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:34px;height:2px;background:linear-gradient(90deg,var(--tech),var(--signal));}
.hero h1{
  font-family:var(--display);
  font-size:clamp(36px,5.2vw,66px);
  line-height:1.04;letter-spacing:.5px;margin:0 0 22px;color:var(--ink);
}
.hero h1 .ac{color:var(--tech);position:relative;white-space:nowrap;text-shadow:0 0 24px rgba(25,211,230,.25);}
.hero h1 .ac::after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.16em;background:rgba(14,159,184,.22);z-index:-1;border-radius:2px;}
.hero .lead{font-size:18px;color:var(--muted);max-width:42ch;margin:0 0 32px;line-height:1.8;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 右侧科技插画面板（玻璃 + 霓虹青描边 + 辉光） */
.panel{
  border:1px solid rgba(14,159,184,.45);
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(232,244,246,.96));
  padding:0;position:relative;
  box-shadow:0 0 0 1px rgba(14,159,184,.20), 0 24px 60px rgba(14,27,34,.16), 0 0 46px rgba(25,211,230,.16);
  border-radius:var(--radius-lg);overflow:hidden;
}
.panel::before,.panel::after{content:"";position:absolute;width:14px;height:14px;border:1.5px solid var(--tech-bright);box-shadow:0 0 12px rgba(25,211,230,.6);z-index:3;}
.panel::before{top:-7px;right:-7px;border-left:0;border-bottom:0;}
.panel::after{bottom:-7px;left:-7px;border-right:0;border-top:0;}
.panel .scene{display:block;width:100%;height:auto;background:var(--ink);filter:drop-shadow(0 0 18px rgba(25,211,230,.10));}
.panel-head{
  position:relative;z-index:2;background:var(--ink);color:var(--paper);
  font-family:var(--mono);font-size:11px;letter-spacing:2px;text-transform:uppercase;
  padding:11px 16px;display:flex;justify-content:space-between;align-items:center;
}
.panel-head .dot{color:var(--tech-bright);display:flex;align-items:center;gap:6px;}
.panel-row{
  position:relative;z-index:2;display:flex;align-items:center;gap:14px;padding:16px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.7);
}
.panel-row:last-child{border-bottom:0;}
.panel-row .code{
  font-family:var(--mono);font-size:12px;color:var(--tech-ink);
  border:1px solid var(--tech-line);padding:5px 9px;flex:0 0 auto;letter-spacing:1px;background:var(--white);
}
.panel-row .meta{flex:1;}
.panel-row .meta b{display:block;font-family:var(--display);font-size:18px;color:var(--ink);letter-spacing:.5px;}
.panel-row .meta span{font-size:13px;color:var(--muted);}
.panel-row .stat{font-family:var(--mono);font-size:13px;color:var(--tech-ink);font-weight:700;}

/* ============ 通用 section ============ */
.section{padding:80px 0;border-bottom:1px solid var(--line);position:relative;}
.section-head{margin-bottom:46px;max-width:64ch;}
.section-label{
  font-family:var(--mono);font-size:12px;letter-spacing:2px;text-transform:uppercase;
  color:var(--tech-ink);display:flex;align-items:center;gap:12px;margin-bottom:16px;
}
.section-label .idx{
  color:var(--white);background:linear-gradient(120deg,var(--tech),var(--signal));padding:3px 8px;border-radius:2px;font-weight:700;letter-spacing:1px;
}
.section-label::after{content:"";flex:1;height:1px;background:var(--tech-line);}
.section h2{
  font-family:var(--display);font-size:clamp(27px,3.6vw,42px);line-height:1.12;margin:0;color:var(--ink);letter-spacing:.5px;
}
.section h2 .ac{color:var(--tech);}
/* 单行标题工具类：桌面不换行（窄屏由响应式断点恢复自动换行） */
.h2-nowrap{white-space:nowrap;}
.section .note{color:var(--muted);margin-top:16px;font-size:16px;line-height:1.8;}

/* ============ 卡片（玻璃拟态 + 青色发光描边） ============ */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  border:1px solid var(--tech-line);
  background:linear-gradient(160deg, rgba(255,255,255,.85), rgba(226,244,247,.55));
  backdrop-filter:blur(10px);
  padding:30px 26px 26px;position:relative;transition:.28s var(--ease);
  border-radius:var(--radius-lg);
  box-shadow:0 0 0 1px rgba(255,255,255,.4) inset, var(--shadow-sm);
  overflow:hidden;
}
.card::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,var(--tech),var(--signal));transition:width .3s var(--ease);}
.card .ico{
  width:54px;height:54px;border-radius:var(--radius);display:grid;place-items:center;
  background:linear-gradient(160deg,var(--tech-soft),rgba(255,255,255,.6));border:1px solid var(--tech-line);margin-bottom:18px;
}
.card .ico svg{width:30px;height:30px;}
.card .num{font-family:var(--mono);font-size:12px;color:var(--tech-ink);letter-spacing:1px;}
.card h3{font-family:var(--display);font-size:23px;margin:8px 0 12px;color:var(--ink);letter-spacing:.5px;}
.card p{font-size:15px;color:var(--muted);margin:0 0 16px;line-height:1.75;}
.card ul{list-style:none;margin:0;padding:0;font-size:14px;color:var(--ink);}
.card ul li{padding:9px 0 9px 20px;position:relative;border-top:1px solid var(--line);}
.card ul li::before{content:"";position:absolute;left:0;top:16px;width:7px;height:7px;border:1.5px solid var(--tech);transform:rotate(45deg);box-shadow:0 0 6px rgba(25,211,230,.4);}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-family:var(--mono);font-size:13px;color:var(--tech-ink);transition:.2s var(--ease);}
.card .more:hover{color:var(--signal);gap:10px;}
.card:hover{transform:translateY(-6px);border-color:var(--tech);box-shadow:0 0 0 1px rgba(14,159,184,.5), 0 16px 44px rgba(25,211,230,.28);}
.card:hover::after{width:100%;}

/* 业务页 hero 变体（图文左右，科技光晕） */
.page-hero{
  position:relative;padding:60px 0 52px;border-bottom:1px solid var(--tech-line);overflow:hidden;
  background:
    radial-gradient(50% 90% at 92% 0%, rgba(14,159,184,.13), transparent 60%),
    radial-gradient(50% 90% at 0% 100%, rgba(226,96,30,.08), transparent 60%);
}
.ph-grid{display:grid;grid-template-columns:1.45fr .85fr;gap:46px;align-items:center;}
.ph-illu{
  border:1px solid rgba(14,159,184,.4);background:var(--white);
  border-radius:var(--radius-lg);box-shadow:0 0 0 1px rgba(14,159,184,.18), var(--shadow-md), 0 0 40px rgba(25,211,230,.14);overflow:hidden;position:relative;
}
.ph-illu::before,.ph-illu::after{content:"";position:absolute;width:14px;height:14px;border:1.5px solid var(--tech-bright);box-shadow:0 0 12px rgba(25,211,230,.6);z-index:2;}
.ph-illu::before{top:-7px;right:-7px;border-left:0;border-bottom:0;}
.ph-illu::after{bottom:-7px;left:-7px;border-right:0;border-top:0;}
.ph-illu img{display:block;width:100%;height:auto;filter:drop-shadow(0 0 16px rgba(25,211,230,.10));}
.crumbs{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:1px;margin-bottom:22px;}
.crumbs a:hover{color:var(--tech);}
.page-hero h1{font-family:var(--display);font-size:clamp(30px,4.6vw,54px);line-height:1.08;margin:0 0 18px;color:var(--ink);letter-spacing:.5px;}
.page-hero h1 .ac{color:var(--tech);}
.page-hero .lead{font-size:18px;color:var(--muted);max-width:58ch;margin:0 0 28px;line-height:1.8;}

/* ============ 服务流程（序号序列） ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--tech-line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.step{padding:28px 22px 26px;border-right:1px solid var(--line);position:relative;background:var(--white);transition:.25s var(--ease);}
.step:last-child{border-right:0;}
.step .n{font-family:var(--display);font-size:30px;color:var(--tech);line-height:1;text-shadow:0 0 16px rgba(25,211,230,.3);}
.step h4{font-family:var(--display);font-size:18px;margin:12px 0 8px;color:var(--ink);letter-spacing:.5px;}
.step p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}
.step:hover{background:var(--tech-soft);}
.step:hover .n{color:var(--tech-ink);}

/* ============ 地域优势数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--tech-line);border:1px solid var(--tech-line);border-radius:var(--radius-lg);overflow:hidden;}
.stat-cell{background:var(--paper);padding:30px 22px;text-align:center;transition:.25s var(--ease);}
.stat-cell:hover{background:var(--white);}
.stat-cell .big{font-family:var(--display);font-size:42px;color:var(--ink);line-height:1;text-shadow:0 0 18px rgba(25,211,230,.16);}
.stat-cell .big .u{font-size:18px;color:var(--tech);text-shadow:0 0 12px rgba(25,211,230,.4);}
.stat-cell .cap{font-size:14px;color:var(--muted);margin-top:10px;}

/* ============ 暗色区块（信任/页脚） ============ */
.dark{background:var(--ink);color:var(--paper);border-bottom:0;position:relative;overflow:hidden;}
.dark::before{content:"";position:absolute;inset:0;
  background:
    radial-gradient(50% 80% at 85% 0%, rgba(226,96,30,.18), transparent 55%),
    radial-gradient(45% 70% at 8% 100%, rgba(14,159,184,.28), transparent 60%);
  pointer-events:none;}
.dark .wrap{position:relative;z-index:1;}
.dark .section-label{color:var(--tech-bright);}
.dark .section-label .idx{background:linear-gradient(120deg,var(--tech),var(--safety));color:var(--ink);}
.dark .section-label::after{background:rgba(255,255,255,.16);}
.dark h2{color:var(--paper);}
.dark .note{color:#A9B6BD;}
.dark .card{background:var(--ink-2);border-color:rgba(14,159,184,.35);box-shadow:none;backdrop-filter:none;}
.dark .card::after{background:linear-gradient(90deg,var(--tech-bright),var(--safety));}
.dark .card .ico{background:rgba(25,211,230,.14);border-color:rgba(25,211,230,.3);}
.dark .card h3{color:var(--paper);}
.dark .card p{color:#A9B6BD;}
.dark .card ul li{border-color:rgba(255,255,255,.12);color:var(--paper);}
.dark .card ul li::before{border-color:var(--tech-bright);box-shadow:0 0 6px rgba(25,211,230,.5);}
.dark .card .more{color:var(--tech-bright);}
.dark .card:hover{border-color:var(--tech-bright);box-shadow:0 0 0 1px rgba(25,211,230,.4);}
.dark .btn--ghost{color:var(--paper);}
/* 深色区内的 .case 卡片（如文章详情页相关阅读） */
.dark .case{background:var(--ink-2);border-color:rgba(14,159,184,.35);box-shadow:none;backdrop-filter:none;}
.dark .case::before{background:linear-gradient(180deg,var(--tech-bright),var(--tech));}
.dark .case h3{color:var(--paper);}
.dark .case p{color:#A9B6BD;}
.dark .case .tag{color:var(--tech-bright);}
.dark .case .res{color:var(--tech-bright);}
.dark .case .res a{color:var(--tech-bright);}
.dark .case:hover{border-color:var(--tech-bright);box-shadow:0 0 0 1px rgba(25,211,230,.4);}

.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.case-more{text-align:center;margin-top:26px;}
.case{
  border:1px solid var(--tech-line);
  background:linear-gradient(160deg, rgba(255,255,255,.9), rgba(226,244,247,.5));
  backdrop-filter:blur(8px);
  padding:0;display:flex;flex-direction:column;position:relative;
  border-radius:var(--radius-lg);box-shadow:0 0 0 1px rgba(255,255,255,.4) inset, var(--shadow-sm);transition:.28s var(--ease);overflow:hidden;
  text-decoration:none;color:inherit;
}
.case::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--tech),var(--tech-bright));z-index:4;transition:width .28s var(--ease);}
.case .thumb{position:relative;z-index:1;display:block;width:100%;aspect-ratio:16/10;height:auto;object-fit:cover;border-bottom:1px solid var(--tech-line);background:var(--paper);}
.case .body{position:relative;z-index:1;padding:22px 24px 24px;display:flex;flex-direction:column;gap:11px;flex:1;}
.case .tag{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);text-transform:uppercase;}
.case h3{font-family:var(--display);font-size:21px;margin:0;color:var(--ink);letter-spacing:.5px;}
.case p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}
.case .res{font-family:var(--mono);font-size:13px;color:var(--tech-ink);margin-top:auto;}
.case:hover{transform:translateY(-5px);box-shadow:0 0 0 1px rgba(14,159,184,.45), var(--shadow-md);}
.case:hover::before{width:7px;}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:stretch;}
.contact-info{display:flex;flex-direction:column;}
.contact-info .note{margin:0 0 10px;}
.contact-info .info-list{flex:1;display:flex;flex-direction:column;}
.contact-info .info-list li{flex:1;align-items:center;}
.info-list{list-style:none;margin:0;padding:0;}
.info-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:16px;align-items:flex-start;}
.info-list .k{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);flex:0 0 96px;text-transform:uppercase;padding-top:3px;}
.info-list .v{font-size:16px;color:var(--ink);line-height:1.6;}
.info-list .v a{color:var(--tech-ink);}
.info-list .v a:hover{color:var(--signal);text-decoration:underline;}

.form{background:var(--white);border:1px solid var(--tech-line);padding:30px;border-radius:var(--radius-lg);box-shadow:0 0 0 1px rgba(14,159,184,.12), var(--shadow-md);}
.form h3{font-family:var(--display);font-size:22px;margin:0 0 20px;color:var(--ink);letter-spacing:.5px;}
.field{margin-bottom:16px;}
.field label{display:block;font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);margin-bottom:7px;text-transform:uppercase;}
.field input,.field textarea,.field select{
  width:100%;font-family:var(--sans);font-size:15px;color:var(--ink);
  background:var(--paper);border:1px solid var(--line-strong);padding:12px 14px;border-radius:var(--radius);transition:.2s var(--ease);
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--tech);box-shadow:0 0 0 3px rgba(14,159,184,.22);background:#fff;}
.form .btn{width:100%;justify-content:center;}
.form-note{margin:14px 0 0;font-size:12px;line-height:1.6;color:var(--muted);}

/* ============ 页脚（科技青光） ============ */
.site-footer{background:var(--ink);color:#C7D0D6;padding:58px 0 30px;position:relative;overflow:hidden;}
.site-footer::before{content:"";position:absolute;inset:0;
  background:
    radial-gradient(40% 70% at 90% 0%, rgba(226,96,30,.16), transparent 55%),
    radial-gradient(50% 80% at 8% 100%, rgba(14,159,184,.22), transparent 60%);
  pointer-events:none;}
.foot-grid{display:grid;grid-template-columns:1.05fr .8fr .8fr 1.35fr;gap:30px;position:relative;z-index:1;}
.site-footer .brand .name{color:var(--paper);}
.site-footer .brand .mark{border-color:var(--paper);color:var(--paper);background:transparent;box-shadow:none;}
.site-footer .brand .mark::before,.site-footer .brand .mark::after{border-color:var(--tech-bright);box-shadow:0 0 8px rgba(25,211,230,.5);}
.foot-col h4{font-family:var(--mono);font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--tech-bright);margin:0 0 18px;}
.foot-col a,.foot-col p{display:block;color:#C7D0D6;font-size:14px;margin:0 0 11px;line-height:1.6;transition:color .2s var(--ease);}
.foot-col a:hover{color:var(--tech-bright);}
.foot-phone{font-family:var(--mono);font-size:21px;color:var(--paper);font-weight:700;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:42px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8A99A0;font-family:var(--mono);letter-spacing:.5px;position:relative;z-index:1;}

/* ============ 响应式 ============ */
/* —— 平板及以下：栅格收敛、区块堆叠 —— */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .ph-grid{grid-template-columns:1fr;gap:34px;}
  .cards,.trust-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .step:nth-child(2){border-right:0;}
  .stats{grid-template-columns:1fr 1fr;}
  .case-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:34px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .post-grid{grid-template-columns:1fr 1fr;}
  .post-feature{grid-template-columns:1fr;}
  .post-feature .post-feat-illu{min-height:240px;}
}

/* —— 移动端：导航改为汉堡下拉菜单（替代原 display:none 死导航） —— */
@media (max-width:880px){
  .nav-toggle{display:inline-flex;}
  .header-cta .phone,.header-cta .btn{display:none;}
  .nav{
    position:absolute;top:100%;left:calc(-1 * var(--gut));right:calc(-1 * var(--gut));
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(242,246,247,.97);
    backdrop-filter:saturate(160%) blur(12px);
    border-bottom:1px solid var(--tech-line);
    box-shadow:0 16px 36px rgba(14,27,34,.16);
    padding:8px var(--gut) 16px;display:none;z-index:60;
  }
  .site-header.nav-open .nav{display:flex;animation:navIn .22s var(--ease);}
  .nav a{padding:15px 4px;border-bottom:1px solid var(--line);width:100%;font-size:16px;}
  .nav a:last-child{border-bottom:0;}
  .nav a::after{display:none;}
  .nav a.active{color:var(--tech-ink);padding-left:14px;position:relative;}
  .nav a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;background:linear-gradient(180deg,var(--tech),var(--signal));border-radius:2px;}
}
@keyframes navIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}

/* —— 手机：进一步收窄间距与字号、按钮堆叠 —— */
@media (max-width:680px){
  .cards,.trust-grid,.steps,.stats{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--line);}
  .foot-grid{grid-template-columns:1fr;}
  .topbar .wrap{font-size:11px;height:auto;padding:8px 0;gap:6px 14px;}
  .hero{padding:48px 0 44px;}
  .section{padding:56px 0;}
  .post-grid{grid-template-columns:1fr;}
  .post-card{flex-direction:column;align-items:stretch;gap:0;}
  .post-cover{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .h2-nowrap{white-space:normal;}
}

/* —— 超小屏（≤480）：极致收窄，保证 320–414 不溢出 —— */
@media (max-width:480px){
  :root{--gut:18px;}
  .topbar .wrap span:nth-child(2){display:none;}
  .site-header .wrap{height:64px;gap:12px;}
  .brand .name{font-size:18px;}
  .brand .sub{font-size:9px;letter-spacing:1.5px;}
  .brand .mark{width:38px;height:38px;font-size:18px;}
  .hero{padding:38px 0 34px;}
  .hero h1{font-size:30px;line-height:1.08;}
  .hero .lead{font-size:16px;}
  .eyebrow{font-size:11px;letter-spacing:2px;margin-bottom:14px;}
  .section{padding:42px 0;}
  .section-head{margin-bottom:32px;}
  .section h2{font-size:25px;}
  .card{padding:22px 20px 20px;}
  .card h3{font-size:20px;}
  .card .ico{width:46px;height:46px;margin-bottom:14px;}
  .card .ico svg{width:26px;height:26px;}
  .stat-cell{padding:22px 14px;}
  .stat-cell .big{font-size:34px;}
  .panel-row{flex-wrap:wrap;gap:10px;}
  .panel-row .stat{width:100%;}
  .info-list li{flex-direction:column;gap:4px;}
  .info-list .k{flex:0 0 auto;}
  .form{padding:22px 18px;}
  .ph-grid{gap:24px;}
  .page-hero{padding:40px 0 34px;}
  .page-hero h1{font-size:28px;}
  .page-hero .lead{font-size:16px;}
  /* 文章详情 */
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;}
  .article-body h3{font-size:19px;}
  .article-cover{aspect-ratio:16/9;max-width:480px;margin:0 auto 26px;}
  .article-head h1{font-size:27px;}
  .article-head .meta{gap:10px 16px;font-size:12px;}
  /* 博客精选大卡 */
  .post-feature .feat-body{padding:26px 22px;}
  .post-feature .post-feat-illu{min-height:200px;}
  .post-body{padding:18px 18px 20px;}
  .post-card h3{font-size:18px;}
  /* 页脚 */
  .site-footer{padding:44px 0 26px;}
  .foot-grid{gap:24px;}
  .foot-bottom{flex-direction:column;gap:6px;}
}

/* ============ BLOG 栏目（技术科普） ============ */
.blog-filters{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0;}
.filter{
  font-family:var(--mono);font-size:13px;letter-spacing:1px;text-transform:uppercase;
  color:var(--tech-ink);background:var(--white);border:1px solid var(--tech-line);
  padding:9px 18px;border-radius:100px;cursor:pointer;transition:.22s var(--ease);
}
.filter:hover{border-color:var(--tech);box-shadow:0 0 18px rgba(25,211,230,.22);}
.filter.active{background:linear-gradient(120deg,var(--tech),var(--tech-ink));color:var(--white);border-color:transparent;box-shadow:0 0 20px rgba(25,211,230,.30);}

.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.post-grid.post-grid--single{grid-template-columns:1fr;}
.post-card{
  display:flex;
  flex-direction:row;
  align-items:center;
  gap:22px;
  border:1px solid var(--tech-line);
  background:linear-gradient(160deg, rgba(255,255,255,.9), rgba(226,244,247,.5));
  backdrop-filter:blur(8px);border-radius:var(--radius-lg);overflow:hidden;
  position:relative;transition:.28s var(--ease);
  box-shadow:0 0 0 1px rgba(255,255,255,.4) inset, var(--shadow-sm);
}
.post-card::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,var(--tech),var(--signal));transition:width .3s var(--ease);}
.post-card:hover{transform:translateY(-6px);border-color:var(--tech);box-shadow:0 0 0 1px rgba(14,159,184,.45), 0 16px 44px rgba(25,211,230,.26);}
.post-card:hover::after{width:100%;}
.post-cover{position:relative;width:240px;flex:none;aspect-ratio:16/9;overflow:hidden;background:radial-gradient(120% 120% at 82% 0%, #163842, #0E1B22 68%);display:grid;place-items:center;}
.post-cover::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 42%, rgba(25,211,230,.18), transparent 70%);pointer-events:none;}
.post-cover .cover-ico{width:62px;height:62px;position:relative;z-index:1;filter:drop-shadow(0 0 12px rgba(25,211,230,.5));}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);position:relative;z-index:1;}
.post-card:hover .post-cover img{transform:scale(1.05);}
.post-body{padding:20px 24px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.post-date{font-family:var(--mono);font-size:12px;color:var(--tech-ink);letter-spacing:.5px;}
.post-card h3{font-family:var(--display);font-size:20px;line-height:1.3;margin:0;color:var(--ink);letter-spacing:.3px;}
.post-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;flex:1;}
.post-card .more{margin-top:6px;font-family:var(--mono);font-size:13px;color:var(--tech-ink);display:inline-flex;gap:6px;transition:.2s var(--ease);}
.post-card .more:hover{color:var(--signal);gap:10px;}

/* 首页「最新动态」紧凑卡：缩略图内缩小巧 + 右侧仅标题 */
.post-card--mini{align-items:center;gap:18px;padding:16px 18px;}
.post-card--mini .post-cover{width:128px;}
.post-card--mini .post-body{padding:0;gap:0;}
.post-card--mini h3{font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-card--mini h3 a{transition:color .2s var(--ease);}
.post-card--mini h3 a:hover{color:var(--tech-ink);}
@media (max-width:680px){
  .post-card--mini{flex-direction:row;padding:14px 16px;gap:14px;}
  .post-card--mini .post-cover{width:100px;flex:none;}
}

/* 精选大卡 */
.post-feature{
  border:1px solid rgba(14,159,184,.4);border-radius:var(--radius-lg);overflow:hidden;
  display:grid;grid-template-columns:1.15fr 1fr;background:var(--white);position:relative;
  box-shadow:0 0 0 1px rgba(14,159,184,.14), var(--shadow-md);margin-bottom:46px;
}
.post-feature::before,.post-feature::after{content:"";position:absolute;width:14px;height:14px;border:1.5px solid var(--tech-bright);box-shadow:0 0 12px rgba(25,211,230,.6);z-index:3;}
.post-feature::before{top:-7px;right:-7px;border-left:0;border-bottom:0;}
.post-feature::after{bottom:-7px;left:-7px;border-right:0;border-top:0;}
.post-feature .post-feat-illu{position:relative;overflow:hidden;background:var(--ink);min-height:320px;}
.post-feature .post-feat-illu img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.post-feature .feat-body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.post-feature .feat-tag{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);text-transform:uppercase;}
.post-feature h3{font-family:var(--display);font-size:clamp(24px,3vw,34px);line-height:1.2;margin:0;color:var(--ink);letter-spacing:.5px;}
.post-feature p{font-size:15px;color:var(--muted);margin:0;line-height:1.8;}
.post-feature .more{margin-top:8px;font-family:var(--mono);font-size:14px;color:var(--tech-ink);display:inline-flex;gap:8px;transition:.2s var(--ease);}
.post-feature .more:hover{color:var(--signal);gap:12px;}

/* ===== 文章详情 ===== */
.article{max-width:1200px;margin:0 auto;}
.article-head{margin-bottom:30px;}
.article-head .cat{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);text-transform:uppercase;}
.article-head h1{font-family:var(--display);font-size:clamp(28px,4.4vw,46px);line-height:1.14;margin:14px 0 18px;color:var(--ink);letter-spacing:.5px;}
.article-head .meta{display:flex;flex-wrap:wrap;gap:18px;font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.5px;}
.article-head .meta span{display:inline-flex;align-items:center;gap:6px;}
.article-cover{aspect-ratio:21/9;max-width:480px;margin:0 auto 38px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--tech-line);box-shadow:var(--shadow-md);background:var(--ink);}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.article-body{font-size:17px;line-height:1.95;color:var(--ink-2);}
.article-body h2{font-family:var(--display);font-size:27px;margin:42px 0 16px;color:var(--ink);letter-spacing:.5px;padding-left:16px;position:relative;}
.article-body h2::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;background:linear-gradient(180deg,var(--tech),var(--tech-bright));border-radius:2px;}
.article-body h3{font-family:var(--display);font-size:21px;margin:30px 0 12px;color:var(--ink);letter-spacing:.5px;}
.article-body p{margin:0 0 18px;}
.article-body ul{margin:0 0 20px;padding:0;list-style:none;}
.article-body ul li{padding:9px 0 9px 24px;position:relative;border-top:1px solid var(--line);font-size:16px;}
.article-body ul li::before{content:"";position:absolute;left:0;top:16px;width:7px;height:7px;border:1.5px solid var(--tech);transform:rotate(45deg);box-shadow:0 0 6px rgba(25,211,230,.4);}
.article-body blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--signal);background:var(--signal-soft);border-radius:0 var(--radius) var(--radius) 0;color:var(--signal-ink);font-weight:600;}
.article-body .callout{margin:24px 0;padding:18px 22px;border:1px solid var(--tech-line);background:linear-gradient(160deg,var(--tech-soft),rgba(255,255,255,.6));border-radius:var(--radius);}
.article-body .callout b{color:var(--tech-ink);}
.article-body code{font-family:var(--mono);background:var(--paper-2);padding:2px 7px;border-radius:3px;font-size:15px;color:var(--tech-ink);}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.article-tags .t{font-family:var(--mono);font-size:12px;color:var(--tech-ink);border:1px solid var(--tech-line);padding:6px 13px;border-radius:100px;}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:34px;flex-wrap:wrap;}
.article-nav a{font-family:var(--mono);font-size:13px;color:var(--tech-ink);border:1px solid var(--tech-line);padding:12px 18px;border-radius:var(--radius);transition:.2s var(--ease);}
.article-nav a:hover{border-color:var(--tech);box-shadow:0 0 18px rgba(25,211,230,.22);}

/* ============ 无障碍 ============ */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--tech);outline-offset:2px;
}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);padding:10px 16px;z-index:100;}
.skip:focus{left:12px;top:12px;}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important;animation:none!important;}
}

/* ============ 案例详情页 ============ */
.crumbs{font-family:var(--mono);font-size:13px;letter-spacing:.5px;color:var(--muted);margin:0 0 26px;}
.crumbs a{color:var(--tech-ink);}
.crumbs a:hover{color:var(--signal);}
.case-detail{max-width:1200px;margin:0 auto;}
.case-detail-head{margin-bottom:24px;}
.case-detail-head .tag{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:var(--tech-ink);text-transform:uppercase;}
.case-detail-head h1{font-family:var(--display);font-size:34px;line-height:1.25;margin:10px 0 12px;color:var(--ink);}
.case-detail-head .lead{font-size:16px;color:var(--muted);line-height:1.8;margin:0 0 12px;}
.case-result{font-family:var(--mono);font-size:14px;color:var(--signal);margin:0;}
.case-result .mono{display:inline-block;font-size:11px;letter-spacing:2px;border:1px solid var(--signal);border-radius:4px;padding:2px 7px;margin-right:8px;vertical-align:middle;}
.case-cover{width:100%;max-height:460px;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--tech-line);margin:8px 0 30px;background:var(--paper);}
.case-content{font-size:16px;line-height:1.9;color:var(--ink);}
.case-content h2{font-family:var(--display);font-size:24px;margin:30px 0 14px;color:var(--ink);letter-spacing:.5px;}
.case-content h3{font-family:var(--display);font-size:19px;margin:22px 0 10px;color:var(--ink);}
.case-content p{margin:0 0 16px;}
.case-content ul,.case-content ol{margin:0 0 16px;padding-left:24px;}
.case-content li{margin:6px 0;}
.case-content img{max-width:100%;height:auto;border-radius:8px;margin:14px 0;border:1px solid var(--tech-line);}
.case-content a{color:var(--tech-ink);text-decoration:underline;}
.case-content blockquote{margin:0 0 16px;padding:12px 18px;border-left:3px solid var(--signal);
  background:rgba(226,96,30,.06);color:var(--steel);border-radius:0 8px 8px 0;}
.case-content pre{background:var(--ink);color:#C7D0D6;padding:16px 18px;border-radius:8px;overflow:auto;font-size:14px;}
.case-back{display:flex;gap:14px;flex-wrap:wrap;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}

/* KindEditor 富文本生成的图文内容：表格 / 图片统一排版 */
.article-body img,.case-content img{max-width:100%;height:auto;border-radius:8px;margin:14px 0;border:1px solid var(--tech-line);}
.article-body table,.case-content table{border-collapse:collapse;width:100%;margin:18px 0;font-size:15px;overflow:hidden;border-radius:8px;}
.article-body table th,.case-content table th{background:var(--paper-2);font-weight:700;text-align:left;color:var(--ink);}
.article-body table td,.article-body table th,
.case-content table td,.case-content table th{border:1px solid var(--line);padding:9px 12px;vertical-align:top;}
.article-body table tr:nth-child(even) td,.case-content table tr:nth-child(even) td{background:rgba(226,244,247,.35);}

/* ===== SEO 组件：相关服务互链 / FAQ 折叠 / 页脚备案 ===== */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
@media (max-width:680px){.rel-grid{grid-template-columns:1fr;}}
.rel{display:block;text-decoration:none;border:1px solid var(--line);border-left:4px solid var(--signal);
  border-radius:10px;padding:18px 20px;background:var(--paper);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.rel:hover{transform:translateY(-2px);border-color:var(--signal);box-shadow:0 8px 22px rgba(21,33,43,.08);}
.rel b{display:block;font-family:var(--display);font-size:19px;color:var(--ink);margin-bottom:4px;letter-spacing:.5px;}
.rel span{font-size:14px;color:var(--muted);}

.faq-list{display:grid;gap:12px;max-width:860px;}
.faq-item{border:1px solid var(--line);border-radius:10px;background:var(--paper);overflow:hidden;}
.faq-item summary{cursor:pointer;list-style:none;padding:16px 20px;font-family:var(--display);font-size:17px;color:var(--ink);
  position:relative;padding-right:46px;letter-spacing:.3px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--signal);
  font-family:var(--mono);transition:transform .2s var(--ease);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-a{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--steel);}

.foot-bottom a{color:inherit;text-decoration:none;}
.foot-bottom a:hover{color:var(--signal);text-decoration:underline;}

/* 首页紧凑询盘表单（P1-9） */
.lead-mini{position:relative;background:linear-gradient(165deg,#FFFFFF,rgba(226,244,247,.45));
  border:1px solid var(--tech-line);border-radius:14px;padding:30px;margin-top:8px;overflow:hidden;
  box-shadow:0 0 0 1px rgba(14,159,184,.08) inset, var(--shadow-md);}
.lead-mini::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--signal),var(--tech));}
.lead-mini .lm-head{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.lead-mini h3{font-family:var(--display);font-size:22px;color:var(--ink);margin:0;letter-spacing:.5px;}
.lead-mini .lm-tip{font-size:13px;color:var(--muted);font-family:var(--mono);}
.lead-mini form{display:grid;grid-template-columns:1.1fr 1.1fr .9fr;gap:12px;}
.lead-mini .lm-full{grid-column:1/-1;}
.lead-mini input,.lead-mini select,.lead-mini textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;
  background:#fff;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.lead-mini textarea{resize:vertical;min-height:64px;line-height:1.6;}
.lead-mini ::placeholder{color:#93A1A9;opacity:1;}
.lead-mini input:focus,.lead-mini select:focus,.lead-mini textarea:focus{
  outline:none;border-color:var(--signal);box-shadow:0 0 0 3px rgba(226,96,30,.13);}
.lead-mini select{appearance:none;-webkit-appearance:none;padding-right:38px;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--steel) 50%),linear-gradient(135deg,var(--steel) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;
  background-size:5px 5px;background-repeat:no-repeat;}
.lead-mini input.is-bad,.lead-mini select.is-bad,.lead-mini textarea.is-bad{
  border-color:var(--signal);box-shadow:0 0 0 3px rgba(226,96,30,.13);}
.lead-mini .lm-note{font-size:12px;color:var(--muted);font-family:var(--mono);margin:2px 0 0;}
@media (max-width:680px){.lead-mini form{grid-template-columns:1fr;}}

/* ============ 修复：手机端「最新动态 / 文章列表」卡片布局（2026-10-13） ============
   .post-grid / .post-card / .post-cover 的基础规则位于响应式区块之后，
   同优先级按源顺序覆盖了 ≤680px 的单列堆叠规则，导致手机端
   出现「2 列 + 横向卡 + 240px 固定封面」的挤压布局（标题逐字换行）。
   此处在文件末尾按原设计意图恢复移动端布局：≤980 两列、≤680 单列。 */
@media (max-width:980px){
  .post-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:680px){
  .post-grid{grid-template-columns:1fr;}
  .post-card{flex-direction:column;align-items:stretch;gap:0;}
  .post-cover{width:100%;}
  /* 首页「最新动态」紧凑卡保持横排小图，占满单列整行 */
  .post-card--mini{flex-direction:row;padding:14px 16px;gap:14px;}
  .post-card--mini .post-cover{width:100px;flex:none;}
}