/* ============================================================
   企业网站设计稿 · 样式系统  v1.0
   设计风格：深色科技 + 浅色内容区（深空蓝 / 科技蓝 / 青绿强调）
   ============================================================ */


/* 符号兜底字体（内嵌，子集自微软雅黑，仅 39 个符号，各 8KB）
   修复「·」「→」「×」「①」等在部分 Windows 字体环境下显示成空心方框的问题。
   这类环境里系统字体把上述符号映射到了 .notdef，浏览器不会自动回退，
   只能由页面自带字形。unicode-range 精确限定，中文与常规文字不受影响。 */
@font-face{
  font-family:"SLSymbols";
  src:url("../fonts/slsymbols-r.woff2") format("woff2"),
      local("Arial"),local("ArialMT"),local("Microsoft YaHei");
  font-weight:100 500;
  font-style:normal;
  font-display:swap;
  unicode-range:U+00A9,U+00B7,U+00D7,U+2014,U+201C,U+201D,U+2026,U+2039,U+203A,U+203B,U+2190,U+2191,U+2192,U+2193,U+2265,U+2460-2469,U+3000-3002,U+300C,U+300D,U+3014,U+3015,U+FF08,U+FF09,U+FF0C,U+FF1A,U+FF1B,U+FF1F,U+FF5C;
}
@font-face{
  font-family:"SLSymbols";
  src:url("../fonts/slsymbols-b.woff2") format("woff2"),
      local("Arial Bold"),local("Arial"),local("Microsoft YaHei Bold"),local("Microsoft YaHei");
  font-weight:600 900;
  font-style:normal;
  font-display:swap;
  unicode-range:U+00A9,U+00B7,U+00D7,U+2014,U+201C,U+201D,U+2026,U+2039,U+203A,U+203B,U+2190,U+2191,U+2192,U+2193,U+2265,U+2460-2469,U+3000-3002,U+300C,U+300D,U+3014,U+3015,U+FF08,U+FF09,U+FF0C,U+FF1A,U+FF1B,U+FF1F,U+FF5C;
}

:root{
  /* 品牌色 */
  --ink:        #0A1628;   /* 深空蓝 - 主深色底 */
  --ink-2:      #12233C;   /* 次级深色 */
  --ink-3:      #1B3357;   /* 深色卡片 */
  --brand:      #1668FF;   /* 科技蓝 - 主色 */
  --brand-d:    #0B4FD8;
  --brand-l:    #E8F1FF;
  --accent:     #00D6A0;   /* 青绿 - 强调色 */
  --accent-d:   #00B287;

  /* 中性色 */
  --bg:         #FFFFFF;
  --bg-soft:    #F4F7FB;
  --bg-soft-2:  #EDF2F9;
  --line:       #E3EAF3;
  --line-2:     #D3DEEC;
  --text:       #16233A;
  --text-2:     #4A5A72;
  --muted:      #7A8AA3;
  --white:      #FFFFFF;

  /* 语义色 */
  --warn:       #FF8A3D;
  --danger:     #FF5A5F;

  /* 尺寸 */
  --maxw:       1240px;
  --radius:     14px;
  --radius-sm:  8px;
  --shadow:     0 6px 24px rgba(16,38,72,.08);
  --shadow-lg:  0 18px 48px rgba(10,22,40,.14);
  --shadow-dark:0 20px 60px rgba(0,0,0,.35);

  /* 字体 */
  --ff: "SLSymbols","PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Helvetica Neue",Arial,sans-serif;
  --ff-num: "SLSymbols","DIN Alternate","Bahnschrift","Impact","Arial Narrow",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff);
  color:var(--text);
  background:var(--bg);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-family:var(--ff-num);font-weight:700;letter-spacing:.5px}

/* ========== 设计稿标注（交付后可一键移除） ========== */
.draft-badge{
  position:fixed;right:22px;bottom:22px;z-index:999;
  background:linear-gradient(135deg,#FF8A3D,#FF5A5F);
  color:#fff;font-size:12px;font-weight:700;letter-spacing:1px;
  padding:10px 16px;border-radius:999px;box-shadow:0 8px 24px rgba(255,90,95,.4);
}
.draft-tip{
  position:fixed;right:22px;bottom:70px;z-index:999;max-width:260px;
  background:rgba(10,22,40,.92);color:#cfe0f5;font-size:12px;line-height:1.7;
  padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);
}
.draft-tip b{color:#fff}
/* 图片位占位 */
.ph{
  position:relative;overflow:hidden;
  background:
    repeating-linear-gradient(45deg,rgba(22,104,255,.05) 0 12px,transparent 12px 24px),
    linear-gradient(135deg,#12233C,#1B3357);
  display:flex;align-items:center;justify-content:center;
}
.ph::after{
  content:attr(data-ph);
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.5);font-size:12px;letter-spacing:1px;text-align:center;padding:0 12px;
}
.ph .ph-ico{opacity:.25;width:46px;height:46px}
.ph-tag{
  position:absolute;left:10px;bottom:10px;z-index:2;
  background:rgba(0,0,0,.55);color:#8fd8ff;font-size:11px;
  padding:3px 8px;border-radius:4px;border:1px dashed rgba(143,216,255,.5);
}

/* ========== 顶部工具条 ========== */
.topbar{background:var(--ink);color:#93A6C0;font-size:13px;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar .r{display:flex;gap:20px;align-items:center}
.topbar b{color:#fff;font-weight:600}

/* ========== 导航 ========== */
.header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:11px}
.logo .mk{
  width:40px;height:40px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:17px;letter-spacing:-1px;
}
.logo .tx b{display:block;font-size:18px;line-height:1.25;letter-spacing:1px}
.logo .tx span{display:block;font-size:10px;color:var(--muted);letter-spacing:2.4px;text-transform:uppercase}
.nav{display:flex;gap:4px;min-width:0;flex:0 1 auto}
.nav a{
  position:relative;padding:9px 15px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:.2s;white-space:nowrap;
}
.nav a:hover{color:var(--brand);background:var(--brand-l)}
.nav a.on{color:var(--brand);font-weight:600}
.nav a.on::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.hd-act{display:flex;align-items:center;gap:12px;flex:none}
.burger{
  display:none;width:38px;height:38px;flex:none;align-items:center;justify-content:center;
  background:var(--brand-l);border:0;border-radius:9px;color:var(--brand);cursor:pointer;
}
.burger svg{width:20px;height:20px}
.hd-tel{display:flex;align-items:center;gap:7px;font-weight:700;color:var(--brand);font-size:17px}
.hd-tel svg{width:16px;height:16px}

/* ========== 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;
  transition:.22s;white-space:nowrap;
}
.btn-p{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(22,104,255,.28)}
.btn-p:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:0 10px 26px rgba(22,104,255,.36)}
.btn-o{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-o:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-g{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-l{background:var(--brand-l);color:var(--brand)}
.btn-l:hover{background:#d6e6ff}
.btn-sm{padding:8px 18px;font-size:13.5px}

/* ========== 通用区块 ========== */
.sec{padding:88px 0}
.sec-soft{background:var(--bg-soft)}
.sec-dark{background:var(--ink);color:#fff}
.sec-hd{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-hd .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;
  color:var(--brand);margin-bottom:12px;
}
.sec-hd h2{font-size:34px;line-height:1.35;margin-bottom:14px;letter-spacing:-.5px}
.sec-hd p{color:var(--text-2);font-size:16px}
.sec-dark .sec-hd .eyebrow{color:var(--accent)}
.sec-dark .sec-hd p{color:#9FB2CC}

/* 小标题（左对齐） */
.sec-hd-l{margin-bottom:40px}
.sec-hd-l .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2.5px;color:var(--brand);margin-bottom:10px}
.sec-hd-l h2{font-size:30px;line-height:1.4;margin-bottom:12px}
.sec-hd-l p{color:var(--text-2);font-size:15.5px;max-width:680px}

/* ========== HERO ========== */
.hero{
  position:relative;min-height:660px;display:flex;align-items:center;
  background:var(--ink);overflow:hidden;color:#fff;
}
.hero-bg{position:absolute;inset:0}
.hero-bg .grid{
  position:absolute;inset:0;opacity:.32;
  background-image:
    linear-gradient(rgba(22,104,255,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,104,255,.16) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse 75% 65% at 60% 45%,#000 30%,transparent 100%);
}
.hero-bg .glow{
  position:absolute;width:780px;height:780px;right:-180px;top:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,104,255,.35),transparent 62%);
}
.hero-bg .glow2{
  position:absolute;width:520px;height:520px;left:-140px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,214,160,.18),transparent 65%);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-top:70px;padding-bottom:70px}
.hero .tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(0,214,160,.14);border:1px solid rgba(0,214,160,.35);
  color:var(--accent);font-size:13px;font-weight:600;margin-bottom:24px;
}
.hero .tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.hero h1{font-size:52px;line-height:1.2;font-weight:800;letter-spacing:-1px;margin-bottom:20px}
.hero h1 .hl{
  background:linear-gradient(100deg,#4D9BFF,#00D6A0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .sub{font-size:17px;color:#B9C9E0;line-height:1.85;max-width:560px;margin-bottom:34px}
.hero .btns{display:flex;gap:14px;margin-bottom:42px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;border-top:1px solid rgba(255,255,255,.14);padding-top:26px}
.hero-stats .it{padding-right:38px;margin-right:38px;border-right:1px solid rgba(255,255,255,.14)}
.hero-stats .it:last-child{border:none;margin:0;padding:0}
.hero-stats .v{font-size:34px;font-weight:800;color:#fff;line-height:1.1}
.hero-stats .v em{font-style:normal;color:var(--accent);font-size:20px;margin-left:2px}
.hero-stats .k{font-size:13px;color:#8FA3C0;margin-top:4px}
/* HERO 右侧：可视化面板 */
.hero-panel{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);
  border-radius:16px;padding:20px;backdrop-filter:blur(8px);box-shadow:var(--shadow-dark);
}
.hp-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px}
.hp-top .t{font-size:14px;font-weight:600;color:#DCE7F7}
.hp-top .dot{display:flex;gap:5px}
.hp-top .dot i{width:8px;height:8px;border-radius:50%;display:block}
.hp-chart{display:flex;align-items:flex-end;gap:7px;height:118px;margin-bottom:14px}
.hp-chart span{
  flex:1;background:linear-gradient(180deg,var(--brand),rgba(22,104,255,.18));
  border-radius:3px 3px 0 0;position:relative;transition:.5s;
}
.hp-chart span.acc{background:linear-gradient(180deg,var(--accent),rgba(0,214,160,.15))}
.hp-legend{display:flex;gap:16px;font-size:12px;color:#93A6C0;margin-bottom:16px}
.hp-legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px}
.hp-rows{display:grid;gap:9px}
.hp-row{
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);
  border-radius:9px;padding:9px 13px;font-size:13px;
}
.hp-row .l{color:#C3D3E8;display:flex;align-items:center;gap:8px}
.hp-row .l i{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.hp-row .r{color:#fff;font-weight:700}

/* ========== 核心服务（8宫格） ========== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px 26px;transition:.28s;overflow:hidden;
}
.svc::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));transform:scaleX(0);transform-origin:left;transition:.3s;
}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.svc:hover::before{transform:scaleX(1)}
.svc .ico{
  width:52px;height:52px;border-radius:12px;background:var(--brand-l);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  color:var(--brand);transition:.28s;
}
.svc:hover .ico{background:var(--brand);color:#fff}
.svc .ico svg{width:26px;height:26px;stroke-width:1.7;fill:none;stroke:currentColor}
.svc h3{font-size:17.5px;margin-bottom:10px;letter-spacing:-.2px}
.svc p{font-size:13.8px;color:var(--text-2);line-height:1.75;margin-bottom:14px}
.svc .meta{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px dashed var(--line)}
.svc .cnt{font-size:13px;color:var(--muted)}
.svc .cnt b{color:var(--brand);font-size:19px;font-family:var(--ff-num);margin-right:3px}
.svc .more{font-size:13px;color:var(--brand);font-weight:600;display:flex;align-items:center;gap:4px}

/* ========== 行业覆盖 ========== */
.ind-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.ind{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 18px;
  transition:.25s;text-align:center;
}
.ind:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-4px)}
.ind .n{font-size:28px;font-weight:800;color:var(--brand);font-family:var(--ff-num);line-height:1}
.ind .n em{font-style:normal;font-size:13px;color:var(--muted);margin-left:2px;font-family:var(--ff)}
.ind .t{font-size:15px;font-weight:600;margin:8px 0 6px}
.ind .d{font-size:12.5px;color:var(--muted);line-height:1.65}

/* ========== 数据条 ========== */
.stats-band{background:var(--ink);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 120%,rgba(22,104,255,.25),transparent 60%);
}
.stats-band .wrap{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats-band .it{padding:0 10px}
.stats-band .v{font-size:46px;font-weight:800;line-height:1;font-family:var(--ff-num)}
.stats-band .v em{font-style:normal;font-size:22px;color:var(--accent);margin-left:3px}
.stats-band .k{font-size:14px;color:#9FB2CC;margin-top:10px}

/* ========== 服务流程 ========== */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:10px}
.flow .st{position:relative;text-align:center;padding:0 10px}
.flow .st::after{
  content:"";position:absolute;right:-14px;top:26px;width:28px;height:1px;
  background:linear-gradient(90deg,var(--line-2),transparent);
}
.flow .st:last-child::after{display:none}
.flow .dot{
  width:54px;height:54px;border-radius:50%;margin:0 auto 14px;
  background:#fff;border:2px solid var(--brand-l);display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:var(--brand);font-family:var(--ff-num);transition:.25s;
}
.flow .st:hover .dot{background:var(--brand);color:#fff;border-color:var(--brand);transform:scale(1.08)}
.flow .t{font-size:15px;font-weight:600;margin-bottom:5px}
.flow .d{font-size:12.5px;color:var(--muted);line-height:1.6}

/* ========== 优势（6卡） ========== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);padding:30px 26px;transition:.28s;
}
.adv:hover{background:rgba(255,255,255,.08);border-color:rgba(0,214,160,.4);transform:translateY(-5px)}
.adv .no{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:1.5px;margin-bottom:14px;font-family:var(--ff-num)}
.adv h3{font-size:18px;color:#fff;margin-bottom:12px}
.adv p{font-size:14px;color:#A8BAD2;line-height:1.8}

/* ========== 案例中心 ========== */
.case-filter{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:24px;box-shadow:var(--shadow)}
.cf-row{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line)}
.cf-row:last-child{border:none;padding-bottom:0}
.cf-row:first-child{padding-top:0}
.cf-lab{flex:none;width:64px;font-size:13.5px;color:var(--muted);padding-top:5px;font-weight:600}
.cf-opts{display:flex;flex-wrap:wrap;gap:8px;flex:1}
.chip{
  padding:5px 14px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  background:var(--bg-soft);border:1px solid transparent;transition:.2s;
}
.chip:hover{color:var(--brand);background:var(--brand-l)}
.chip.on{background:var(--brand);color:#fff;font-weight:600}
.search-box{position:relative;flex:1;max-width:280px}
.search-box input{
  width:100%;padding:9px 14px 9px 36px;border:1px solid var(--line-2);border-radius:8px;
  font-size:14px;font-family:inherit;outline:none;transition:.2s;
}
.search-box input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,104,255,.1)}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:2}
.case-count{display:flex;align-items:baseline;gap:8px;margin-bottom:16px;font-size:14px;color:var(--muted)}
.case-count b{font-size:26px;color:var(--brand);font-family:var(--ff-num)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;
  transition:.25s;position:relative;overflow:hidden;
}
.case:hover{box-shadow:var(--shadow-lg);border-color:var(--brand);transform:translateY(-4px)}
.case .tagrow{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}
.case .tg{font-size:11.5px;padding:3px 9px;border-radius:4px;font-weight:600}
.case .tg.ind{background:var(--brand-l);color:var(--brand)}
.case .tg.tp{background:#E6F9F3;color:var(--accent-d)}
.case h4{font-size:16px;line-height:1.55;margin-bottom:14px;min-height:50px}
.case .ft{display:flex;align-items:center;font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px dashed var(--line)}
.case .ft .no{font-family:var(--ff-num);color:var(--line-2);font-size:16px;font-weight:700}
.case .ft .go{margin-left:auto;color:var(--brand);display:flex;align-items:center;gap:4px;font-weight:600}
.pager{display:flex;justify-content:center;gap:8px;margin-top:32px;flex-wrap:wrap}
.pg{min-width:36px;height:36px;padding:0 11px;border-radius:8px;border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-2);transition:.2s}
.pg:hover{border-color:var(--brand);color:var(--brand)}
.pg.on{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.pg.dis{opacity:.4;pointer-events:none}

/* 数据可视化 */
.chart-block{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;margin-bottom:36px}
.chart-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.chart-card h4{font-size:16px;margin-bottom:4px}
.chart-card .cs{font-size:12.5px;color:var(--muted);margin-bottom:20px}
.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:11px}
.bar-row .nm{flex:none;width:56px;font-size:13.5px;color:var(--text-2);text-align:right}
.bar-row .tr{flex:1;height:20px;background:var(--bg-soft-2);border-radius:4px;overflow:hidden}
.bar-row .fl{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),#5E9CFF);width:0;transition:width 1s cubic-bezier(.2,.8,.3,1)}
.bar-row .fl.acc{background:linear-gradient(90deg,var(--accent-d),var(--accent))}
.bar-row .vl{flex:none;width:34px;font-size:13px;font-weight:700;color:var(--text);font-family:var(--ff-num)}
.donut-wrap{display:flex;align-items:center;gap:22px}
.donut{
  width:150px;height:150px;border-radius:50%;flex:none;position:relative;
  background:conic-gradient(var(--brand) 0 73.8%,var(--accent) 73.8% 88.3%,#7C9BFF 88.3% 97.7%,#FFC24D 97.7% 98.6%,#FF8A3D 98.6% 99.5%,#C6D4E8 99.5% 100%);
}
.donut::after{content:"";position:absolute;inset:30px;background:#fff;border-radius:50%}
.donut .in{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:2}
.donut .in b{font-size:26px;font-family:var(--ff-num);line-height:1}
.donut .in span{font-size:11.5px;color:var(--muted)}
.donut-lg{display:grid;gap:9px;flex:1}
.donut-lg .li{display:flex;align-items:center;gap:8px;font-size:13px}
.donut-lg .li i{width:10px;height:10px;border-radius:3px;flex:none}
.donut-lg .li span{color:var(--text-2);flex:1}
.donut-lg .li b{font-family:var(--ff-num)}

/* ========== 标杆案例 ========== */
.best-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.best{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.28s;
}
.best:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.best .ph{height:190px}
.best .bd{padding:22px}
.best .ind{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:1px;margin-bottom:8px}
.best h4{font-size:17.5px;margin-bottom:10px;line-height:1.5}
.best p{font-size:13.8px;color:var(--text-2);line-height:1.75;margin-bottom:16px}
.best .kpi{display:flex;gap:18px;padding-top:14px;border-top:1px dashed var(--line)}
.best .kpi .k b{display:block;font-size:20px;color:var(--brand);font-family:var(--ff-num);line-height:1.2}
.best .kpi .k span{font-size:12px;color:var(--muted)}

/* ========== CTA ========== */
.cta{position:relative;background:linear-gradient(120deg,var(--ink) 0%,var(--ink-3) 55%,#123A72 100%);color:#fff;padding:76px 0;overflow:hidden}
.cta::after{
  content:"";position:absolute;right:-100px;top:-100px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,214,160,.22),transparent 65%);
}
.cta .wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{font-size:32px;margin-bottom:12px;letter-spacing:-.5px}
.cta p{color:#A8BAD2;font-size:16px}
.cta .act{display:flex;gap:14px;align-items:center;flex-wrap:wrap}

/* ========== 关于我们 ========== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-txt h2{font-size:32px;line-height:1.4;margin-bottom:18px}
.about-txt .lead{font-size:16.5px;color:var(--text-2);line-height:1.9;margin-bottom:18px}
.about-txt p{font-size:15px;color:var(--text-2);line-height:1.9;margin-bottom:14px}
.about-txt .hl-box{
  background:var(--brand-l);border-left:3px solid var(--brand);border-radius:0 10px 10px 0;
  padding:16px 20px;margin:22px 0;font-size:15px;color:var(--text);line-height:1.8;
}
.about-vis{position:relative}
.about-vis .ph{height:420px;border-radius:var(--radius)}
.about-vis .float{
  position:absolute;left:-26px;bottom:34px;background:#fff;border-radius:12px;
  padding:16px 20px;box-shadow:var(--shadow-lg);
}
.about-vis .float b{display:block;font-size:26px;color:var(--brand);font-family:var(--ff-num);line-height:1.1}
.about-vis .float span{font-size:12.5px;color:var(--muted)}

/* ========== 联系 ========== */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px}
.ci-list.ci-4{grid-template-columns:repeat(4,1fr)}
.ci-list.ci-3{grid-template-columns:repeat(3,1fr)}
.ct-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow)}
.ct-card h3{font-size:20px;margin-bottom:8px}
.ct-card>p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.ct-card .cf-lab{width:76px}
.ct-card .cf-opts{padding-top:4px}
.ct-card .cf-opts b{font-size:14.5px;color:var(--text);font-weight:600}
.qr-row{display:flex;gap:16px;align-items:center;margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}
.qr-ph{
  flex:none;width:92px;height:92px;border:1px dashed var(--line-2);border-radius:10px;
  background:var(--bg-soft);display:flex;align-items:center;justify-content:center;
  font-size:11.5px;color:var(--muted);text-align:center;line-height:1.5;padding:8px;
}
.qr-tx b{display:block;font-size:14.5px;margin-bottom:5px}
.qr-tx p{font-size:12.5px;color:var(--muted);line-height:1.7}
/* 二维码位：图标版（拿到二维码图片后替换为 <img> 即可） */
.qr-ph.qr-icon{border:1px solid var(--line);background:var(--brand-l);color:var(--brand);padding:0}
.qr-ph.qr-icon svg{width:40px;height:40px}
/* 页脚域名与备案链接 */
.fbot a{color:#9FB2CC;text-decoration:none;border-bottom:1px solid rgba(159,178,204,.35);transition:.2s}
.fbot a:hover{color:#fff;border-bottom-color:#fff}
.ci-list{display:grid;gap:18px}
.ci{display:flex;gap:16px;align-items:flex-start;padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px}
.ci .ic{width:44px;height:44px;border-radius:10px;background:var(--brand-l);color:var(--brand);flex:none;display:flex;align-items:center;justify-content:center}
.ci .ic svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8}
.ci b{display:block;font-size:15px;margin-bottom:4px}
.ci p{font-size:13.8px;color:var(--text-2);line-height:1.7}
.ci .big{font-size:22px;color:var(--brand);font-family:var(--ff-num);font-weight:800}

/* ========== 页脚 ========== */
.footer{background:var(--ink);color:#93A6C0;padding:60px 0 0;font-size:14px}
.footer .fg{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer h5{color:#fff;font-size:15.5px;margin-bottom:18px;font-weight:600}
.footer .about p{line-height:1.85;margin-bottom:18px;font-size:13.8px}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:13.8px;transition:.2s}
.footer ul a:hover{color:var(--accent);padding-left:4px}
.footer .ct li{display:flex;gap:9px;margin-bottom:12px;font-size:13.8px;line-height:1.7}
.footer .ct li span{flex:none;white-space:nowrap}
.footer .ct b{color:#fff;font-weight:600}
.fbot{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;font-size:13px;color:#6B7F9C;flex-wrap:wrap;gap:10px}

/* ========== 页面切换 ========== */
.page{display:none}
.page.active{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* 子页页头 */
.phead{
  background:linear-gradient(135deg,var(--ink),var(--ink-3));color:#fff;padding:64px 0 72px;position:relative;overflow:hidden;
}
.phead::after{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:44px 44px}
.phead .wrap{position:relative;z-index:2}
.phead h1{font-size:38px;margin-bottom:12px;letter-spacing:-.5px}
.phead p{color:#A8BAD2;font-size:16px;max-width:720px}
.crumb{font-size:13px;color:#7C90AF;margin-bottom:16px}
.crumb b{color:#fff;font-weight:500}

/* ========== 响应式 ========== */

/* ============================================================
   解决方案：方案卡 + 详情页增强（v2.0 两层结构）
   ============================================================ */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol-card{
  display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 26px 20px;text-decoration:none;color:inherit;
  box-shadow:var(--shadow);transition:.22s;position:relative;overflow:hidden;
}
.sol-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--brand),var(--accent));opacity:0;transition:.22s}
.sol-card:hover{border-color:var(--brand);box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.sol-card:hover::before{opacity:1}
.sol-card .sc-top{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px}
.sol-card .sc-ico{
  flex:none;width:46px;height:46px;border-radius:11px;background:var(--brand-l);
  display:flex;align-items:center;justify-content:center;
}
.sol-card .sc-ico svg{width:24px;height:24px;fill:none;stroke:var(--brand);stroke-width:1.7}
.sol-card .sc-t h3{font-size:19px;line-height:1.4;margin-bottom:5px}
.sol-card .sc-sub{font-size:13px;color:var(--accent-d);font-weight:600}
.sol-card .sc-lead{font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:16px}
.sol-card .sc-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.sol-card .sc-kpi div{background:var(--bg-soft);border-radius:9px;padding:12px 6px;text-align:center}
.sol-card .sc-kpi b{display:block;font-size:19px;color:var(--brand);font-family:var(--ff-num);line-height:1.2}
.sol-card .sc-kpi span{font-size:11.5px;color:var(--muted);line-height:1.4;display:block;margin-top:3px}
.sol-card .sc-sys{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.sol-card .sc-sys span{font-size:11.5px;padding:3px 9px;border-radius:4px;background:var(--bg-soft-2);color:var(--text-2)}
.sol-card .sc-ft{
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px;
}
.sol-card .sc-ind{color:var(--muted)}
.sol-card .more{color:var(--brand);font-weight:600;white-space:nowrap}

/* 覆盖子系统标签行 */
.sys-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.sys-row span{font-size:12.5px;padding:5px 12px;border-radius:999px;background:var(--brand-l);color:var(--brand);font-weight:600}

/* 带小标题的列表 */
.cd-list-t li{padding-left:20px;margin-bottom:16px}
.cd-list-t li::before{top:7px;background:var(--brand)}
.cd-list-t li b{display:block;color:var(--text);font-size:15.5px;margin-bottom:3px;font-weight:700}
.cd-list-t li span{display:block;color:var(--text-2);line-height:1.8;font-size:14.5px}

/* 总体架构四层 */
.arch-list{display:grid;gap:12px}
.arch{display:flex;gap:14px;background:var(--bg-soft);border-radius:12px;padding:16px 18px;border-left:3px solid var(--brand)}
.arch .an{
  flex:none;width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--ff-num);font-weight:800;font-size:13px;
}
.arch .ac b{display:block;font-size:15.5px;color:var(--text);margin-bottom:4px}
.arch .ac span{font-size:14px;color:var(--text-2);line-height:1.8}

/* 建设价值 */
.val-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.val{background:var(--bg-soft);border-radius:12px;padding:18px 20px}
.val b{display:block;font-size:15.5px;color:var(--brand);margin-bottom:5px}
.val span{font-size:14px;color:var(--text-2);line-height:1.8}

/* 项目清单：卡片不可点 */
.case{cursor:default}
.case .ft .go{margin-left:auto;color:var(--accent-d);font-weight:600}


/* ---------- 子系统卡片（三层之第三层入口） ---------- */
.sub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px}
.sub-card{
  display:flex;gap:14px;background:var(--bg);border:1px solid var(--line);border-radius:12px;
  padding:12px;text-decoration:none;color:inherit;transition:.2s;overflow:hidden;
}
.sub-card:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-3px)}
.sub-card .sb-img{
  flex:none;width:132px;height:86px;border-radius:8px;overflow:hidden;background:var(--bg-soft-2);
}
.sub-card .sb-img img{width:100%;height:100%;object-fit:cover;display:block}
.sub-card .sb-bd{display:flex;flex-direction:column;min-width:0}
.sub-card .sb-bd b{font-size:14.5px;color:var(--text);margin-bottom:4px;line-height:1.4}
.sub-card .sb-bd span{font-size:12.5px;color:var(--text-2);line-height:1.6}
.sub-card .sb-bd i{font-style:normal;font-size:12.5px;color:var(--brand);font-weight:600;margin-top:auto;padding-top:6px}

@media (max-width:1080px){
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(3,1fr)}
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:40px}
  .best-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .footer .fg{grid-template-columns:1fr 1fr}
  .chart-block,.about-grid,.contact-grid{grid-template-columns:1fr}
  .ci-list.ci-4{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr);gap:24px 0}
  .flow .st::after{display:none}
  /* 窄屏收缩头部：电话已在顶栏展示，此处让位给导航 */
  .hd-tel{display:none}
  .hd-act{gap:8px;flex:none}
  .nav a{font-size:13.5px;padding:8px 10px}
  .nav a.on::after{left:10px;right:10px}
  .logo .tx span{display:none}
}
/* 导航横向可滑动，避免撑破视口 */
@media (max-width:940px){
  .nav{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
  .nav::-webkit-scrollbar{display:none}
  .logo{flex:none}
}
@media (max-width:720px){
  .topbar .l{display:none}
  .topbar .wrap{justify-content:center;height:auto;min-height:34px;flex-wrap:wrap;padding:4px 0;gap:4px 14px}
  .topbar .r{gap:14px;flex-wrap:wrap;justify-content:center}
  /* 导航改为可展开抽屉，保证手机端仍可切换页面 */
  .burger{display:flex}
  .nav{
    display:flex;position:fixed;top:62px;left:0;right:0;z-index:99;
    flex-direction:column;gap:0;background:#fff;padding:0;
    border-bottom:1px solid var(--line);box-shadow:0 14px 34px rgba(10,22,40,.16);
    max-height:0;overflow:hidden;transition:max-height .28s ease;
  }
  body.m-open .nav{max-height:460px;padding:6px 0}
  .nav a{padding:14px 20px;font-size:15.5px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav a:last-child{border-bottom:0}
  .nav a.on::after{display:none}
  .nav a.on{background:var(--brand-l)}
  .sec{padding:56px 0}
  .svc-grid,.ind-grid,.best-grid,.case-grid,.adv-grid{grid-template-columns:1fr}
  .stats-band .wrap{grid-template-columns:repeat(2,1fr);gap:28px}
  .hero h1{font-size:31px}
  .hero-stats{flex-wrap:wrap;gap:20px}
  .hero-stats .it{padding-right:20px;margin-right:20px}
  .sec-hd h2{font-size:26px}
  .ci-list.ci-4{grid-template-columns:1fr}
  .ci-list.ci-3{grid-template-columns:1fr}
  .footer .fg{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  /* 头部在手机端进一步收缩，防止横向溢出 */
  .header .wrap{height:62px}
  .logo .mk{width:34px;height:34px;font-size:15px}
  .logo .tx b{font-size:16px;letter-spacing:.5px}
  .hd-act{gap:6px}
  .btn-sm{padding:7px 11px;font-size:13px}
}
@media (max-width:400px){
  .logo .tx b{font-size:15px}
  .btn-sm{padding:6px 9px;font-size:12.5px}
}

/* ===== 示意配图 ===== */
.ph.has-img{background:#12233C}
.ph.has-img::after{display:none}
.hero-img{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-mask{position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,22,40,.95) 0%,rgba(10,22,40,.86) 42%,rgba(10,22,40,.5) 100%);}
.ph-tag{background:rgba(10,22,40,.7)}

/* ========== 资质证书 ========== */
.cert-top{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:center;margin-bottom:44px;
  padding:30px;background:var(--bg-soft);border-radius:var(--radius)}
.ct-item .v{font-size:32px;font-weight:800;color:var(--brand);line-height:1.15}
.ct-item .v em{font-style:normal;font-size:15px;color:var(--muted);margin-left:3px}
.ct-item .k{font-size:13px;color:var(--text-2);margin-top:6px}
.cert-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px;transition:.25s;text-align:center}
.cert:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.cert .im{height:170px;background:#F7F9FC;border-radius:6px;overflow:hidden;margin-bottom:10px;
  display:flex;align-items:center;justify-content:center}
.cert .im img{width:100%;height:100%;object-fit:contain}
.cert b{display:block;font-size:13.5px;line-height:1.5;margin-bottom:4px}
.cert span{font-size:11.5px;color:var(--muted);font-family:var(--ff-num)}
.cert-note{margin-top:26px;font-size:13px;color:var(--muted);text-align:center;line-height:1.8}

/* 灯箱 */
.lightbox{position:fixed;inset:0;background:rgba(6,14,26,.93);z-index:1000;display:none;
  align-items:center;justify-content:center;padding:40px}
.lightbox.on{display:flex}
.lightbox img{max-width:min(820px,92vw);max-height:88vh;border-radius:6px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb-close{position:absolute;top:20px;right:34px;font-size:42px;color:#fff;cursor:pointer;line-height:1;opacity:.7}
.lb-close:hover{opacity:1}

/* ========== 案例详情页 ========== */
.cd-hero{position:relative;height:340px;overflow:hidden}
.cd-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.cd-hero .mk{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,22,40,.5),rgba(10,22,40,.93))}
.cd-hero .wrap{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;
  justify-content:flex-end;padding-bottom:38px;color:#fff}
.cd-hero .crumb{font-size:13px;color:#9FB2CC;margin-bottom:12px}
.cd-hero .crumb b{color:#fff;font-weight:500}
.cd-hero h1{font-size:33px;line-height:1.35;margin:10px 0 14px}
.cd-hero .tags{display:flex;gap:8px;flex-wrap:wrap}
.cd-hero .tg{font-size:12.5px;padding:5px 13px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24)}
.cd-body{display:grid;grid-template-columns:1fr 316px;gap:44px;align-items:start}
.cd-block{margin-bottom:34px}
.cd-quote{padding:24px 28px;background:var(--bg-soft);border-radius:0 12px 12px 0;border-left:3px solid var(--accent)}
.cd-quote p{font-size:15.5px;line-height:1.95;color:var(--text);margin-bottom:12px}
.cd-quote .by{font-size:13px;color:var(--muted)}
.cd-quote .tag{
  display:inline-block;margin-top:12px;padding:4px 12px;border-radius:5px;
  background:var(--brand-l);color:var(--brand);font-size:12px;font-weight:700;
}
.cd-block h3{font-size:19.5px;margin-bottom:14px;padding-left:12px;border-left:3px solid var(--brand);line-height:1.4}
.cd-block p{color:var(--text-2);line-height:1.9;margin-bottom:10px;font-size:15px}
.cd-list li{position:relative;padding-left:18px;margin-bottom:9px;color:var(--text-2);line-height:1.8;font-size:15px}
.cd-list li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}
.kpi-box{background:var(--bg-soft);border-radius:12px;padding:20px 14px;text-align:center}
.kpi-box b{display:block;font-size:27px;color:var(--brand);font-family:var(--ff-num);line-height:1.2}
.kpi-box span{font-size:12.5px;color:var(--muted)}
.cd-fig{margin:24px 0;border-radius:12px;overflow:hidden}
.cd-fig img{width:100%;display:block}
.cd-fig figcaption{font-size:12.5px;color:var(--muted);padding:10px 2px;text-align:center}
.cd-side{position:sticky;top:96px;display:grid;gap:16px}
.cd-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.cd-card h4{font-size:15.5px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px dashed var(--line)}
.cd-meta{display:grid;gap:11px;font-size:14px}
.cd-meta .r{display:flex;justify-content:space-between;gap:10px}
.cd-meta .r span{color:var(--muted);flex:none}
.cd-meta .r b{text-align:right;font-weight:600}
.cd-side .btn{width:100%;margin-top:4px}
.cd-rel{display:grid;gap:10px}
.cd-rel a{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--text-2);
  padding:9px 0;border-bottom:1px dashed var(--line)}
.cd-rel a:hover{color:var(--brand)}
.cd-rel a span{color:var(--muted);font-size:12px;flex:none}
.cd-nav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.cd-nav a{font-size:14px;color:var(--text-2)}
.cd-nav a:hover{color:var(--brand)}

@media (max-width:1080px){
  .cert-strip{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .cd-body{grid-template-columns:1fr}
  .cd-side{position:static}
  .cert-top{grid-template-columns:repeat(2,1fr)}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .cert-strip,.cert-grid{grid-template-columns:1fr}
  .cd-hero h1{font-size:24px}
}

.best .more{display:inline-flex;align-items:center;gap:5px;margin-top:14px;font-size:13.5px;
  color:var(--brand);font-weight:600;transition:.2s}
.best .more:hover{gap:9px}

/* ---------- 方案卡与详情页：响应式 ---------- */
@media (max-width:1080px){
  .sol-grid{grid-template-columns:repeat(2,1fr);gap:16px}
}
@media (max-width:720px){
  .sol-grid{grid-template-columns:1fr}
  .sol-card{padding:22px 20px 18px}
  .sol-card .sc-kpi{grid-template-columns:repeat(2,1fr)}
  .val-grid{grid-template-columns:1fr}
  .arch{padding:14px 15px}
  .arch .an{width:26px;height:26px;font-size:12px}
}
@media (max-width:400px){
  .sol-card .sc-kpi{grid-template-columns:1fr}
  .sol-card .sc-kpi b{font-size:17px}
}

@media (max-width:720px){
  .sub-grid{grid-template-columns:1fr}
  .sub-card .sb-img{width:104px;height:70px}
}
@media (max-width:400px){
  .sub-card{gap:10px;padding:10px}
  .sub-card .sb-img{width:88px;height:60px}
  .sub-card .sb-bd b{font-size:13.5px}
}