/* ==========================================================================
   南京智小宁官网 · 全站样式
   配色体系：工程蓝图风 —— 以深蓝为基调、信号橙为点缀，简约清晰、工业科技感
   蓝图蓝 #0E4DA4 · 信号橙 #FF6A13 · 深底 #0A2247
   橙色全站占比 ≤ 5%，只出现在需要行动的位置（CTA / 当前页下划线 / 重点数据 / 角标）
   断点：1200 / 960 / 720 / 520
   ========================================================================== */

/* ---------------------------------------------------------------- 变量 */
:root {
  /* ---------------- 主色系 ---------------- */
  --c-primary: #0E4DA4;        /* 蓝图蓝 · 导航高亮 / 标题强调 / 链接 / 主按钮 / 图标主色 */
  --c-primary-700: #093675;    /* 主色深阶 · 主按钮 hover / 深色区块标题 */
  --c-primary-100: #E8F0FC;    /* 主色浅阶 · 标签底色 / 表格选中行 / 徽章底色 */
  --c-primary-200: #CFE0F8;    /* 派生：浅阶描边（与该浅阶同族，用于描边不抢主体） */
  --bg-deep: #0A2247;          /* 深底色 · Hero 区 / Footer / 深色数据条 */

  /* ---------------- 强调色（信号橙，占比 < 5%） ---------------- */
  --c-accent: #FF6A13;         /* 核心 CTA / 当前页导航下划线 / 重点数据 / “新”角标 */
  --c-accent-700: #E25A08;     /* 派生：橙 hover */
  --c-accent-lite: #FF8A3D;    /* 派生：深底上的橙文字（提亮以保证对比度） */
  --c-accent-text: #C2410C;    /* 派生：浅橙底上的橙文字（保证可读性） */
  --c-accent-100: #FFF0E6;     /* 派生：橙浅底（角标底色） */

  /* ---------------- 背景与文字 ---------------- */
  --bg: #FFFFFF;               /* 主背景 · 页面底色 / 卡片底色 */
  --bg-alt: #F4F7FB;           /* 分区背景 · 交替区块 / 筛选栏 / 表格斑马纹 */
  --text: #16233A;             /* 主文字 · 标题 / 正文 */
  --text-soft: #5A6B85;        /* 次级文字 · 辅助说明 */
  --text-mute: #8A97AC;        /* 弱化文字 · 时间戳 / 来源等元信息 */
  --text-invert: #FFFFFF;
  --border: #DCE4EF;           /* 边框 / 分割线 */
  --border-strong: #C6D3E5;    /* 派生：强边框（输入框 / 分页按钮） */

  /* ---------------- 功能色 ---------------- */
  --c-success: #16A34A;        /* 下载成功 / 更新提示 */
  --c-warn: #D97706;           /* 信息过期提醒 */
  --c-danger: #DC2626;         /* 加载失败 / 表单错误 */

  /* ---------------- 尺度与阴影 ---------------- */
  --radius-s: 6px;
  --radius: 12px;
  --radius-l: 18px;
  --shadow-s: 0 1px 2px rgba(10, 34, 71, .06), 0 1px 3px rgba(10, 34, 71, .05);
  --shadow: 0 4px 14px rgba(10, 34, 71, .08);
  --shadow-l: 0 14px 40px rgba(10, 34, 71, .14);

  --maxw: 1200px;
  --gutter: 24px;
  --font: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

/* ------------------------------------------------- 板块识别色（专用低饱和色）
   仅用于「图标底色」与「卡片顶部细条」，不参与正文与按钮。
   用法：在板块容器上加 data-section="arch|news|tender|scene|tools" */
[data-section="arch"]   { --sec: #0E4DA4; --sec-soft: #E8F0FC; }  /* 工业设计 · 蓝图蓝 */
[data-section="news"]   { --sec: #2E7DD1; --sec-soft: #E9F1FB; }  /* 设计新闻 */
[data-section="tender"] { --sec: #0F766E; --sec-soft: #E5F1EF; }  /* 招标动态 · 深青 */
[data-section="scene"]  { --sec: #7C5CD6; --sec-soft: #EFEAFB; }  /* AI+场景 · 紫 */
[data-section="tools"]  { --sec: #FF6A13; --sec-soft: #FFF0E6; }  /* AI工具 · 信号橙 */

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-700); text-decoration: underline; }

h1, h2, h3, h4 { color: var(--c-primary); line-height: 1.32; margin: 0 0 .6em; font-weight: 700; }
h1 { font-size: clamp(26px, 3.6vw, 40px); letter-spacing: -.4px; }
h2 { font-size: clamp(21px, 2.4vw, 28px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid rgba(14, 77, 164, .42); outline-offset: 2px; border-radius: 4px; }

/* 工程蓝图网格：用于所有深色面板，弱化到「像图纸底纹」的程度 */
.bp-grid, .hero::after, .site-footer, .admin-side, .login-wrap, .demo-box {
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .075) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px, 140px 140px, 140px 140px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--c-primary);
  color: #fff; padding: 10px 16px; z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: 900px; }
.stack > * + * { margin-top: 16px; }
.muted { color: var(--text-mute); }
.soft { color: var(--text-soft); }
.center { text-align: center; }
.mt0 { margin-top: 0; }
.nowrap { white-space: nowrap; }

/* ---------------------------------------------------------------- 顶栏 */
.topbar {
  background: var(--bg-deep); color: #D6E3F5; font-size: 13.5px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.topbar .container { display: flex; gap: 12px; align-items: center; justify-content: space-between; min-height: 38px; }
.topbar a { color: #EAF2FD; opacity: .92; }
.topbar a:hover { opacity: 1; color: #fff; }

/* ---------------------------------------------------------------- 头部 */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand img { height: 40px; width: auto; }
.brand-text { display: none; }

.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  position: relative; display: block; padding: 9px 12px; border-radius: 8px; font-size: 14.5px;
  color: var(--text-soft); font-weight: 500; white-space: nowrap;
}
.main-nav a:hover { background: var(--bg-alt); color: var(--c-primary); text-decoration: none; }
.main-nav a.active { color: var(--c-primary); background: var(--c-primary-100); font-weight: 600; }
/* 当前页导航下划线 —— 信号橙 */
.main-nav a.active::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px;
  background: var(--c-accent); border-radius: 2px;
}

.nav-toggle {
  display: none; margin-left: auto; background: none; border: 1px solid var(--border-strong);
  border-radius: 8px; padding: 8px 10px; cursor: pointer; color: var(--c-primary);
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: currentColor; margin: 4px 0; }

/* ---------------------------------------------------------------- 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 10px 18px; border-radius: 10px; border: 1px solid transparent;
  font-size: 14.5px; font-weight: 600; cursor: pointer; transition: .16s ease;
  background: var(--c-primary); color: #fff; line-height: 1.2;
}
.btn:hover { background: var(--c-primary-700); color: #fff; text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--c-primary); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--c-primary-100); color: var(--c-primary-700); }
/* 核心 CTA —— 信号橙 */
.btn-accent { background: var(--c-accent); }
.btn-accent:hover { background: var(--c-accent-700); }
.btn-danger { background: var(--c-danger); }
.btn-danger:hover { background: #B01F1F; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ---------------------------------------------------------------- 标签 */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px;
  font-weight: 600; line-height: 1.7; white-space: nowrap;
  background: var(--c-primary-100); color: var(--c-primary-700);
}
.badge-accent { background: var(--c-accent-100); color: var(--c-accent-text); }
.badge-warn { background: #FEF6E7; color: #92590A; }
.badge-danger { background: #FDECEC; color: #B01F1F; }
.badge-success { background: #E9F7EF; color: #14803C; }
.badge-mute { background: var(--bg-alt); color: var(--text-mute); }
.badge-lg { font-size: 13px; padding: 4px 12px; }
/* “新”角标 —— 信号橙实底，全站仅用于真正的更新提示 */
.badge-new {
  display: inline-block; padding: 1px 7px; border-radius: 6px; font-size: 11px;
  font-weight: 700; letter-spacing: .5px; line-height: 1.7; white-space: nowrap;
  background: var(--c-accent); color: #fff; vertical-align: 1px;
}

/* ---------------------------------------------------------------- 首页 Hero */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1100px 520px at 90% -12%, rgba(255, 106, 19, .10), transparent 62%),
    linear-gradient(135deg, #0A2247 0%, #0E4DA4 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .3));
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .3));
}
.hero-inner { position: relative; z-index: 1; padding: clamp(48px, 8vw, 96px) 0; display: grid; gap: 36px; grid-template-columns: 1.15fr .85fr; align-items: center; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero .lead { font-size: clamp(15.5px, 1.5vw, 18px); color: #BCD2EE; max-width: 620px; }
.hero .section-eyebrow { color: var(--c-accent-lite); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 28px; }
.hero-tags span {
  padding: 5px 13px; border-radius: 999px; font-size: 13px;
  background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .22); color: #E4EEFC;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border-color: rgba(255, 255, 255, .38); }
.hero .btn-ghost:hover { background: rgba(255, 255, 255, .18); color: #fff; }

.hero-panel {
  position: relative;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius-l); padding: 20px; backdrop-filter: blur(6px);
}
/* 图框角标：呼应工程图纸的定位十字角 */
.hero-panel::after {
  content: ""; position: absolute; top: 10px; right: 10px; width: 18px; height: 18px;
  border-top: 1px solid rgba(255, 138, 61, .75); border-right: 1px solid rgba(255, 138, 61, .75);
}
.hero-panel h3 { color: #fff; font-size: 15px; letter-spacing: .5px; margin-bottom: 14px; }
.hero-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.hero-metric { background: rgba(255, 255, 255, .08); border-radius: var(--radius); padding: 12px 14px; }
/* 重点数据 —— 信号橙 */
.hero-metric b { display: block; font-size: 19px; color: var(--c-accent-lite); font-family: var(--mono); }
.hero-metric span { font-size: 12.5px; color: #AEC6E6; }

/* ---------------------------------------------------------------- 区块 */
.section { padding: clamp(40px, 6vw, 72px) 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.section-head p { margin: 6px 0 0; color: var(--text-mute); font-size: 14.5px; max-width: 720px; }
/* 区块眉标：像图纸上的技术标注，取本板块识别色 */
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  letter-spacing: 2.4px; text-transform: uppercase;
  color: var(--sec, var(--c-primary)); margin-bottom: 6px;
}
.section-eyebrow::before { content: ""; width: 14px; height: 2px; background: currentColor; border-radius: 2px; }

/* ---------------------------------------------------------------- 卡片 */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow-s); transition: .18s ease; display: flex; flex-direction: column;
}
/* 卡片顶部细条 —— 板块识别色 */
[data-section] .card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--sec);
}
.card-hover:hover { box-shadow: var(--shadow-l); transform: translateY(-3px); border-color: var(--border-strong); }
.card h3 { margin-bottom: 8px; font-size: 16.5px; }
.card h3 a { color: inherit; }
.card h3 a:hover { color: var(--c-primary-700); text-decoration: none; }
.card-meta { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: var(--text-mute); margin-bottom: 10px; }
.card-body { color: var(--text-soft); font-size: 14.3px; flex: 1; }
.card-foot { margin-top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card-title-clamp { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-text-clamp { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* 列表条目（新闻/招标/场景通用） */
.item-list { display: grid; gap: 14px; }
.item {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; box-shadow: var(--shadow-s); transition: .16s ease;
}
[data-section] .item::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--sec);
}
.item:hover { border-color: var(--border-strong); box-shadow: var(--shadow); }
.item h3 { font-size: 16.5px; margin-bottom: 8px; }
.item h3 a { color: var(--c-primary); }
.item h3 a:hover { color: var(--c-primary-700); text-decoration: none; }
.item-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; font-size: 12.8px; color: var(--text-mute); margin-bottom: 10px; }
.item-summary { color: var(--text-soft); font-size: 14.3px; margin: 0; }
.item-foot { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; font-size: 13px; color: var(--text-mute); }

/* ---------------------------------------------------------------- 筛选栏 */
.filterbar {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; margin-bottom: 22px;
}
.filter-row { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }
.filter-row + .filter-row { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); }
.filter-label { font-size: 13px; font-weight: 600; color: var(--text-mute); min-width: 56px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 13px;
  background: #fff; color: var(--text-soft); border: 1px solid var(--border);
}
.chip:hover { background: var(--c-primary-100); border-color: var(--c-primary-200); text-decoration: none; color: var(--c-primary); }
.chip.active { background: var(--c-primary-100); border-color: var(--c-primary-200); color: var(--c-primary-700); font-weight: 600; }
.chip .count { opacity: .7; font-size: 12px; margin-left: 4px; }
.search-form { display: flex; gap: 8px; flex-wrap: wrap; }
.search-form input[type="search"], .search-form input[type="text"] { flex: 1 1 220px; }

/* ---------------------------------------------------------------- 表单 */
label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text-soft); margin-bottom: 6px; }
input[type="text"], input[type="search"], input[type="email"], input[type="password"],
input[type="number"], input[type="date"], input[type="url"], select, textarea {
  width: 100%; padding: 10px 12px; font-size: 14.5px; font-family: inherit; color: var(--text);
  background: #fff; border: 1px solid var(--border-strong); border-radius: 8px; transition: .15s;
}
textarea { resize: vertical; line-height: 1.65; }
input:focus, select:focus, textarea:focus {
  border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(14, 77, 164, .13); outline: none;
}
.field { margin-bottom: 16px; }
.field-help { font-size: 12.5px; color: var(--text-mute); margin-top: 5px; }
.field-row { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.checkbox { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.checkbox input { width: auto; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-s); }

/* ---------------------------------------------------------------- 架构页 */
.arch-layer {
  display: grid; grid-template-columns: 88px 1fr; gap: 22px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-l);
  padding: 26px; box-shadow: var(--shadow-s); position: relative;
}
.arch-layer + .arch-layer { margin-top: 16px; }
.arch-order {
  font-family: var(--mono); font-size: 30px; font-weight: 700; line-height: 1;
  color: #fff; background: linear-gradient(140deg, var(--c-primary), var(--c-primary-700));
  width: 68px; height: 68px; border-radius: 16px; display: grid; place-items: center;
}
.arch-layer h3 { display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px; }
.arch-layer h3 small { font-size: 12.5px; font-weight: 500; color: var(--text-mute); letter-spacing: 1px; }
.arch-lead { font-weight: 600; color: var(--c-primary-700); margin-bottom: 10px; }
.arch-points { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.arch-points li { position: relative; padding-left: 22px; font-size: 14.3px; color: var(--text-soft); }
.arch-points li::before {
  content: ""; position: absolute; left: 4px; top: 9px; width: 7px; height: 7px;
  border-radius: 2px; background: var(--sec, var(--c-primary));
}
.arch-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.arch-tags span { font-size: 12.5px; padding: 3px 10px; border-radius: 6px; background: var(--c-primary-100); color: var(--c-primary-700); font-weight: 600; }
.source-note {
  display: flex; gap: 12px; align-items: flex-start; padding: 14px 18px; border-radius: var(--radius);
  background: var(--c-primary-100); border: 1px solid var(--c-primary-200); font-size: 13.8px; color: var(--c-primary-700);
}
.source-note strong { white-space: nowrap; }

.stat-grid { display: grid; gap: 14px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; position: relative; overflow: hidden; }
[data-section] .stat::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--sec); }
.stat b { display: block; font-size: clamp(20px, 2.4vw, 27px); color: var(--c-primary); font-family: var(--mono); }
.stat span { font-size: 13px; color: var(--text-mute); }

.capability { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
/* 图标底色 —— 板块识别色 */
.capability .ico {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: var(--sec-soft, var(--c-primary-100)); color: var(--sec, var(--c-primary));
  margin-bottom: 12px; font-size: 19px;
}
.capability h4 { margin: 0 0 6px; font-size: 15.5px; color: var(--c-primary); }
.capability p { margin: 0; font-size: 13.8px; color: var(--text-soft); }

.flow { display: grid; gap: 14px; grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: step; }
.flow-step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; position: relative; }
.flow-step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: -12px; left: 18px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--c-primary); color: #fff; font-size: 13px; font-weight: 700; display: grid; place-items: center;
}
.flow-step h4 { margin: 10px 0 6px; font-size: 15px; color: var(--c-primary); }
.flow-step p { margin: 0; font-size: 13.6px; color: var(--text-soft); }

/* 深色数据条 —— 深底色 + 蓝图网格 */
.demo-box { background-color: var(--bg-deep); border-radius: var(--radius-l); padding: 24px; color: #BCD2EE; }
.demo-box .prompt {
  font-family: var(--mono); font-size: 14.5px; background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16); border-radius: 10px; padding: 12px 14px; color: var(--c-accent-lite); margin-bottom: 16px;
}
.demo-box h4 { color: #fff; }

.evolution { display: grid; gap: 14px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.evolution .evo {
  border-radius: var(--radius); padding: 16px; background: #fff; border: 1px solid var(--border);
  border-left: 4px solid var(--c-primary);
}
.evolution .evo:last-child { border-left-color: var(--c-primary-700); background: var(--c-primary-100); }
.evolution .evo b { display: block; color: var(--c-primary); margin-bottom: 4px; }
.evolution .evo span { font-size: 12.5px; color: var(--text-mute); }
.evolution .evo p { margin: 6px 0 0; font-size: 13.5px; color: var(--text-soft); }

/* ---------------------------------------------------------------- 详情页 */
.detail-layout { display: grid; gap: 28px; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
.article { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-l); padding: clamp(22px, 3.4vw, 38px); box-shadow: var(--shadow-s); position: relative; overflow: hidden; }
[data-section] .article::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--sec); }
.article h1 { font-size: clamp(22px, 2.8vw, 31px); }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; font-size: 13px; color: var(--text-mute); padding-bottom: 18px; border-bottom: 1px solid var(--border); margin-bottom: 22px; }
.article-body { font-size: 15.6px; line-height: 1.85; color: var(--text); }
.article-body h2 { margin-top: 1.6em; padding-left: 12px; border-left: 4px solid var(--sec, var(--c-primary)); font-size: 20px; }
.article-body h3 { margin-top: 1.4em; font-size: 17px; }
.article-body p { margin: 0 0 1.1em; }
.article-body ul, .article-body ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.article-body li { margin-bottom: .4em; }
.article-body code { font-family: var(--mono); font-size: .92em; background: var(--bg-alt); padding: 2px 6px; border-radius: 5px; }
.article-body pre { background: var(--bg-deep); color: #DCE8F8; padding: 16px; border-radius: var(--radius); overflow-x: auto; }
.article-body blockquote { margin: 0 0 1.1em; padding: 10px 16px; border-left: 4px solid var(--border-strong); background: var(--bg-alt); color: var(--text-soft); }
.article-body table { width: 100%; border-collapse: collapse; margin-bottom: 1.1em; font-size: 14.5px; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.article-body th { background: var(--c-primary-100); color: var(--c-primary-700); }

.sidebar { display: grid; gap: 18px; position: sticky; top: 88px; }
.side-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-s); }
.side-card h3 { font-size: 15px; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.side-list li { font-size: 13.8px; line-height: 1.6; }
.side-list a { color: var(--text); }
.side-list a:hover { color: var(--c-primary); }
.side-list .date { display: block; font-size: 12.3px; color: var(--text-mute); margin-top: 3px; }

.lu-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }

/* ---------------------------------------------------------------- 工具页 */
.tool-card { position: relative; }
/* 图标底色 —— 取本板块识别色（AI工具为信号橙） */
.tool-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--sec-soft, var(--c-primary-100)); color: var(--sec, var(--c-primary));
  font-weight: 700; font-family: var(--mono); font-size: 18px; margin-bottom: 14px;
}

/* ---------------------------------------------------------------- 管理团队 */
.team-card { text-align: center; }
.team-avatar {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center;
  margin: 0 auto 14px; background: var(--sec-soft, var(--c-primary-100));
  color: var(--sec, var(--c-primary)); font-weight: 700; font-size: 22px;
  border: 1px solid var(--border);
}
.team-card h3 { font-size: 15.5px; }
.tool-download { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.dl-count { font-size: 13px; color: var(--text-mute); }

/* ---------------------------------------------------------------- 分页 */
.pagination { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 30px; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-strong); border-radius: 9px; font-size: 14px; color: var(--text-soft); background: #fff;
}
.pagination a:hover { background: var(--c-primary-100); color: var(--c-primary); text-decoration: none; border-color: var(--c-primary-200); }
.pagination .current { background: var(--c-primary); border-color: var(--c-primary); color: #fff; font-weight: 600; }
.pagination .gap { border: none; background: none; }

.empty { text-align: center; padding: 56px 20px; background: var(--bg-alt); border: 1px dashed var(--border-strong); border-radius: var(--radius); color: var(--text-mute); }
.empty h3 { color: var(--text-soft); }

/* ---------------------------------------------------------------- 页脚 */
.site-footer { background-color: var(--bg-deep); color: #A9C0E0; margin-top: 40px; font-size: 14px; }
.footer-main { display: grid; gap: 30px; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; padding: 52px 0 34px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer a { color: #A9C0E0; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-brand img { height: 42px; margin-bottom: 14px; filter: brightness(1.75) saturate(1.35); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding: 18px 0 26px; display: flex; flex-wrap: wrap; gap: 10px 20px; justify-content: space-between; font-size: 13px; color: #8FA6C2; }
.footer-bottom a { color: #8FA6C2; }

/* ---------------------------------------------------------------- 提示条 */
.flash-wrap { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: grid; gap: 10px; max-width: min(92vw, 380px); }
.flash {
  background: #fff; border: 1px solid var(--border); border-left: 4px solid var(--c-primary);
  border-radius: 10px; padding: 12px 16px; box-shadow: var(--shadow-l); font-size: 14px;
  animation: flashIn .28s ease;
}
.flash-error { border-left-color: var(--c-danger); }
.flash-success { border-left-color: var(--c-success); }
@keyframes flashIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.alert { padding: 13px 16px; border-radius: var(--radius); font-size: 14px; margin-bottom: 18px; border: 1px solid; }
.alert-info { background: var(--c-primary-100); border-color: var(--c-primary-200); color: var(--c-primary-700); }
.alert-warn { background: #FEF6E7; border-color: #F5E0B8; color: #92590A; }
.alert-error { background: #FDECEC; border-color: #F5D2D2; color: #B01F1F; }
.alert-success { background: #E9F7EF; border-color: #CDEBD9; color: #14803C; }

/* ---------------------------------------------------------------- 后台 */
.admin-body { background: var(--bg-alt); }
.admin-shell { display: grid; grid-template-columns: 232px minmax(0, 1fr); min-height: 100dvh; }
.admin-side {
  background-color: var(--bg-deep); color: #A9C0E0;
  padding: 20px 0; position: sticky; top: 0; height: 100dvh; overflow-y: auto;
}
.admin-side .brand { padding: 0 20px 18px; border-bottom: 1px solid rgba(255, 255, 255, .12); margin-bottom: 14px; }
.admin-side .brand img { height: 36px; filter: brightness(1.75) saturate(1.35); }
.admin-nav { list-style: none; margin: 0; padding: 0 12px; display: grid; gap: 2px; }
.admin-nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 9px;
  color: #A9C0E0; font-size: 14.3px;
}
.admin-nav a:hover { background: rgba(255, 255, 255, .09); color: #fff; text-decoration: none; }
.admin-nav a.active {
  background: rgba(14, 77, 164, .55); color: #fff; font-weight: 600;
  box-shadow: inset 2px 0 0 var(--c-accent);
}
.admin-nav .group-title { font-size: 11.5px; letter-spacing: 1.6px; color: #8FA6C2; padding: 16px 14px 6px; text-transform: uppercase; }
.admin-nav .pill { margin-left: auto; background: var(--c-accent); color: #fff; border-radius: 999px; padding: 1px 8px; font-size: 11.5px; font-weight: 700; }
.admin-main { padding: 24px clamp(16px, 2.4vw, 34px) 60px; min-width: 0; }
.admin-top { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.admin-top h1 { font-size: 22px; margin: 0; }
.admin-top .who { font-size: 13.5px; color: var(--text-mute); }

.panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-s); margin-bottom: 20px; overflow: hidden; }
.panel-head { padding: 15px 20px; border-bottom: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; background: var(--bg-alt); }
.panel-head h2, .panel-head h3 { margin: 0; font-size: 16px; }
.panel-body { padding: 20px; }
.panel-body.np { padding: 0; }
.panel-foot { padding: 14px 20px; border-top: 1px solid var(--border); background: var(--bg-alt); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.kpi-grid { display: grid; gap: 14px; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 22px; }
.kpi { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-s); }
.kpi b { display: block; font-size: 24px; font-family: var(--mono); color: var(--c-primary); }
.kpi span { font-size: 13px; color: var(--text-mute); }
.kpi .sub { font-size: 12.5px; color: var(--text-mute); margin-top: 4px; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
table.data th { background: var(--bg-alt); color: var(--text-soft); font-size: 13px; font-weight: 600; white-space: nowrap; position: sticky; top: 0; }
table.data tbody tr:nth-child(even) td { background: var(--bg-alt); }   /* 表格斑马纹 */
table.data tr:hover td { background: var(--c-primary-100); }            /* 表格选中/悬停行 */
table.data td.title-cell { max-width: 420px; }
table.data td.title-cell a { font-weight: 600; color: var(--c-primary); }
table.data .actions { white-space: nowrap; display: flex; gap: 8px; }
table.data .muted { color: var(--text-mute); font-size: 12.8px; }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.toolbar .grow { flex: 1 1 200px; }
.bulkbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 12px 20px;
  background: var(--bg-alt); border-bottom: 1px solid var(--border);
}
.login-wrap {
  min-height: 100dvh; display: grid; place-items: center; padding: 24px;
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(900px 460px at 78% 8%, rgba(14, 77, 164, .55), transparent 68%),
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .075) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px, 140px 140px, 140px 140px;
}
.login-card { width: 100%; max-width: 400px; background: #fff; border-radius: var(--radius-l); padding: 32px; box-shadow: var(--shadow-l); }
.login-card img { height: 44px; margin-bottom: 18px; }
.login-card h1 { font-size: 21px; }
.log-line { font-family: var(--mono); font-size: 12.6px; color: var(--text-soft); word-break: break-all; }
.src-state { font-size: 12.4px; color: var(--text-mute); }
.tag-mini { display: inline-block; font-size: 11.5px; padding: 1px 7px; border-radius: 5px; background: var(--bg-alt); color: var(--text-mute); margin-left: 6px; }

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; }
  .detail-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .grid-4, .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow, .evolution { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { position: static; height: auto; }
  .admin-nav { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}

@media (max-width: 860px) {
  :root { --gutter: 18px; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-l);
    padding: 10px 16px 18px;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 2px; }
  .main-nav a { padding: 12px 10px; font-size: 15.5px; }
  .main-nav a.active::after { left: 10px; right: auto; width: 18px; bottom: 8px; }
  .header-inner { position: relative; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .arch-layer { grid-template-columns: 1fr; }
  .arch-order { width: 54px; height: 54px; font-size: 24px; }
  .field-row { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 22px; padding: 36px 0 24px; }
  table.data { font-size: 13.4px; }
  table.data th, table.data td { padding: 9px 10px; }
}

@media (max-width: 520px) {
  body { font-size: 14.6px; }
  .kpi-grid, .stat-grid, .flow, .evolution, .hero-metrics { grid-template-columns: 1fr; }
  .section { padding: 34px 0; }
  .card, .item, .article { padding: 16px; }
  .topbar .container { flex-direction: column; align-items: flex-start; gap: 2px; padding-top: 6px; padding-bottom: 6px; }
  .flash-wrap { left: 12px; right: 12px; bottom: 12px; max-width: none; }
}

@media print {
  .site-header, .site-footer, .topbar, .filterbar, .sidebar, .flash-wrap { display: none !important; }
  body { background: #fff; }
  .article { border: none; box-shadow: none; padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}