/* ==========================================================================
   工厂 AI 应用知识库 · myaiplant.com
   设计系统 v2（2026-10）：深色数据化风格
   深空底 + 青蓝数据色，图表用纯 SVG/CSS，不依赖外部库
   ========================================================================== */

:root{
  /* 底色与面板 */
  --bg:#070E1A;
  --bg-2:#0A1424;
  --panel:#0E1A2C;
  --panel-2:#0B1626;
  --panel-3:#122036;

  /* 文本 */
  --ink:#E8EEF9;
  --ink-2:#C3CFE2;
  --muted:#93A3BA;
  --dim:#6B7A90;

  /* 线条 */
  --line:rgba(148,163,184,.14);
  --line-2:rgba(148,163,184,.26);

  /* 数据色 */
  --cyan:#22D3EE;
  --cyan-2:#06B6D4;
  --green:#34D399;
  --amber:#FBBF24;
  --violet:#A78BFA;
  --rose:#FB7185;

  /* 圆角 / 阴影 */
  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh:0 18px 48px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(34,211,238,.18), 0 12px 40px rgba(34,211,238,.08);

  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.3px}
p{margin:0}
img,svg{max-width:100%}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:100;background:var(--panel);padding:10px 16px;
  border:1px solid var(--line-2);border-radius:var(--r-sm);box-shadow:var(--sh)}

.wrap{max-width:1160px;margin:0 auto;padding:0 22px}

/* ---------------------------------------------------------------- 导航 */
header.site{position:sticky;top:0;z-index:50;background:rgba(7,14,26,.82);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;color:var(--ink);white-space:nowrap}
.brand:hover{text-decoration:none}
.brand .logo{width:40px;height:40px;flex:none;object-fit:contain;
  filter:drop-shadow(0 0 8px rgba(99,102,241,.35))}
nav.main{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
nav.main a{padding:8px 12px;border-radius:var(--r-pill);color:var(--muted);font-size:14.5px;white-space:nowrap}
nav.main a:hover{background:rgba(148,163,184,.08);color:var(--ink);text-decoration:none}
nav.main a[aria-current="page"]{color:var(--cyan);background:rgba(34,211,238,.10);font-weight:600}
.nav-cta{margin-left:8px}
@media(max-width:820px){
  nav.main a:not(.nav-cta){padding:8px;font-size:13.5px}
  .brand{font-size:15px}
}

/* ---------------------------------------------------------------- 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-2));color:#04121B;
  font-weight:700;font-size:15px;line-height:1;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 30px rgba(34,211,238,.25);text-decoration:none}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn.ghost:hover{background:rgba(148,163,184,.08);box-shadow:none}
.btn.sm{padding:10px 18px;font-size:14px}
.btn.soft{background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);color:var(--cyan)}
.btn.soft:hover{background:rgba(34,211,238,.16)}

/* ---------------------------------------------------------------- 区块 */
.section{padding:76px 0}
.section.tight{padding:52px 0}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--cyan);
  border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.08);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;letter-spacing:.3px}
.section h2{font-size:30px;margin-bottom:10px}
.section .lead{color:var(--muted);font-size:17px;max-width:760px;margin-bottom:30px}
@media(max-width:780px){
  .section{padding:54px 0}
  .section h2{font-size:24px}
  .section .lead{font-size:15.5px}
}

/* ---------------------------------------------------------------- Hero */
.hero{position:relative;overflow:hidden;padding:64px 0 56px;
  background:
    radial-gradient(900px 460px at 8% -10%, rgba(34,211,238,.16), transparent 62%),
    radial-gradient(700px 380px at 96% 0%, rgba(167,139,250,.14), transparent 58%),
    var(--bg)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(148,163,184,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(148,163,184,.06) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(70% 60% at 50% 0%,#000 30%,transparent 100%)}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}
.hero h1{font-size:46px;line-height:1.18;letter-spacing:-1.2px;margin:14px 0 18px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero .lead{color:var(--ink-2);font-size:17.5px;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:34px}
  .hero .lead{font-size:16px}
}

/* KPI 条 */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kpi{background:linear-gradient(180deg,rgba(18,32,54,.9),rgba(11,22,38,.9));
  border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.kpi b{display:block;font-family:var(--mono);font-size:24px;line-height:1.2;color:var(--ink)}
.kpi b span{font-size:13px;color:var(--muted);font-family:inherit;margin-left:3px}
.kpi small{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}
.kpi .up{color:var(--green);font-size:12px}
@media(max-width:620px){.kpis{grid-template-columns:1fr 1fr}}

/* 智能体控制台卡 */
.console{border:1px solid var(--line-2);border-radius:var(--r-lg);background:linear-gradient(180deg,#0C1728,#080F1C);
  box-shadow:var(--sh),var(--glow);overflow:hidden}
.console-bar{display:flex;align-items:center;gap:8px;padding:11px 14px;border-bottom:1px solid var(--line);
  background:rgba(148,163,184,.04)}
.console-bar i{width:9px;height:9px;border-radius:50%;background:#334155;display:block}
.console-bar i:nth-child(1){background:#F87171}
.console-bar i:nth-child(2){background:#FBBF24}
.console-bar i:nth-child(3){background:#34D399}
.console-bar span{margin-left:8px;font-size:12px;color:var(--muted);font-family:var(--mono)}
.console-body{padding:16px;font-family:var(--mono);font-size:12.5px;line-height:1.9;color:var(--ink-2)}
.line{display:flex;gap:10px;padding:3px 0}
.line .t{color:var(--dim);flex:none}
.line .ok{color:var(--green)}
.line .info{color:var(--cyan)}
.line .warn{color:var(--amber)}
.line .txt{color:var(--ink-2);min-width:0}
.cursor{display:inline-block;width:7px;height:14px;background:var(--cyan);vertical-align:-2px;
  animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------------------------------------------------------------- 图表 */
.chart-grid{display:grid;gap:16px;grid-template-columns:1.15fr .85fr}
@media(max-width:900px){.chart-grid{grid-template-columns:1fr}}
.chart-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 20px 16px}
.chart-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:6px}
.chart-head h3{font-size:15.5px}
.chart-head .sub{font-size:12.5px;color:var(--muted)}
.chart-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);margin-top:8px}
.chart-legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:6px;vertical-align:middle}
.chart-note{font-size:12px;color:var(--dim);margin-top:10px;line-height:1.6}

/* 横向条形图 */
.bars{display:flex;flex-direction:column;gap:12px;margin-top:14px}
.bar-row{display:grid;grid-template-columns:96px 1fr 62px;gap:10px;align-items:center}
.bar-row .name{font-size:13px;color:var(--ink-2);white-space:nowrap}
.bar-track{display:block;height:10px;border-radius:6px;background:rgba(148,163,184,.10);overflow:hidden}
.bar-fill{display:block;height:100%;width:var(--w,0%);border-radius:6px;
  background:linear-gradient(90deg,var(--cyan-2),var(--cyan))}

/* 滚动进入视口时才播放：条形从 0 长出，逐条错开 */
.js-anim .bars[data-animate]:not(.in) .bar-fill{width:0}
.js-anim .bars[data-animate].in .bar-fill{transition:width .95s cubic-bezier(.22,.61,.36,1)}
.js-anim .bars[data-animate].in .bar-row:nth-child(2) .bar-fill{transition-delay:.09s}
.js-anim .bars[data-animate].in .bar-row:nth-child(3) .bar-fill{transition-delay:.18s}
.js-anim .bars[data-animate].in .bar-row:nth-child(4) .bar-fill{transition-delay:.27s}
.js-anim .bars[data-animate].in .bar-row:nth-child(5) .bar-fill{transition-delay:.36s}
.js-anim .bars[data-animate].in .bar-row:nth-child(6) .bar-fill{transition-delay:.45s}
.bar-fill.v{background:linear-gradient(90deg,#7C3AED,var(--violet))}
.bar-fill.g{background:linear-gradient(90deg,#059669,var(--green))}
.bar-row .val{font-family:var(--mono);font-size:12.5px;color:var(--ink);text-align:right}

/* 折线图 */
.linechart{width:100%;height:auto;display:block}
.linechart .grid-line{stroke:rgba(148,163,184,.12);stroke-width:1}
.linechart .axis-text{fill:var(--dim);font-size:10.5px;font-family:var(--mono)}
.linechart .series{fill:none;stroke:var(--cyan);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.linechart .series-2{fill:none;stroke:var(--violet);stroke-width:2;stroke-dasharray:5 4}
.linechart .dot{fill:var(--bg);stroke:var(--cyan);stroke-width:2}
.linechart .area{fill:url(#gradCyan)}

/* 环形图 */
.donut{width:150px;height:150px;flex:none}
.donut circle{fill:none;stroke-width:14;stroke-linecap:round}
.donut .tick{stroke:rgba(148,163,184,.12)}
.donut-wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:12px}
.donut-legend{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:8px}
.donut-legend b{color:var(--ink);font-family:var(--mono)}
.donut-center{font-family:var(--mono);fill:var(--ink);font-size:22px}
.donut-center-s{fill:var(--muted);font-size:10px}

/* 矩阵散点 */
.matrix{width:100%;height:auto;display:block}
.matrix .ax{stroke:var(--line-2);stroke-width:1}
.matrix .grid{stroke:rgba(148,163,184,.10);stroke-width:1}
.matrix .lbl{fill:var(--muted);font-size:10.5px}
.matrix .pt{stroke:var(--bg);stroke-width:1.5}
.matrix .pt-label{fill:var(--ink-2);font-size:9px}
.matrix .safe{fill:rgba(52,211,153,.10);stroke:rgba(52,211,153,.35);stroke-dasharray:4 4}
.matrix .safe-text{fill:var(--green);font-size:10.5px}

/* ---------------------------------------------------------------- 卡片 */
.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;
  transition:border-color .18s ease, transform .18s ease, box-shadow .18s ease}
.card:hover{border-color:rgba(34,211,238,.28);transform:translateY(-2px);box-shadow:0 16px 40px rgba(0,0,0,.35)}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:14.5px}
.card li{margin:5px 0}
.card .tag{display:inline-block;font-size:11.5px;padding:2px 9px;border-radius:var(--r-pill);
  background:rgba(34,211,238,.10);color:var(--cyan);margin-bottom:10px}
.card .tag.g{background:rgba(52,211,153,.10);color:var(--green)}
.card .tag.a{background:rgba(251,191,36,.10);color:var(--amber)}
@media(max-width:900px){.grid.c3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid.c2,.grid.c3{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
table.data{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
table.data th,table.data td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.data th{background:rgba(148,163,184,.06);font-weight:600;color:var(--ink-2);white-space:nowrap}
table.data tr:last-child td{border-bottom:none}
table.data td{color:var(--muted)}
table.data td b{color:var(--ink)}

/* ---------------------------------------------------------------- 页脚 */
footer.site{border-top:1px solid var(--line);background:var(--panel-2);padding:44px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px;margin-bottom:24px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:10px}
.foot-brand .logo{width:32px;height:32px;object-fit:contain;
  filter:drop-shadow(0 0 6px rgba(99,102,241,.3))}
.foot-col h4{font-size:13px;color:var(--dim);font-weight:600;margin-bottom:10px;letter-spacing:.4px}
.foot-col a{display:block;color:var(--muted);font-size:14px;padding:4px 0}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid var(--line);padding-top:18px;color:var(--dim);font-size:12.5px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ---------------------------------------------------------------- 其他 */
.note{background:rgba(34,211,238,.06);border:1px solid rgba(34,211,238,.20);border-radius:var(--r);
  padding:14px 16px;color:var(--ink-2);font-size:14px;margin-top:22px}
.note b{color:var(--ink)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font-family:var(--mono);
  color:var(--cyan);font-size:12px;margin-bottom:8px}
.step h3{font-size:15.5px}
.step p{color:var(--muted);font-size:14px}
@media(max-width:760px){.steps{grid-template-columns:1fr}}

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

/* ---------------------------------------------------------------- 表单 */
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input{width:100%;padding:11px 13px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);background:var(--panel-2);color:var(--ink);
  font-family:var(--mono);font-size:15px;outline:none}
.field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.15)}

/* ---------------------------------------------------------------- 架构图 */
.arch{width:100%;height:auto;display:block}
.arch .box{fill:rgba(34,211,238,.06);stroke:rgba(34,211,238,.34);stroke-width:1;rx:8}
.arch .box-2{fill:rgba(167,139,250,.06);stroke:rgba(167,139,250,.34);stroke-width:1}
.arch .box-3{fill:rgba(52,211,153,.06);stroke:rgba(52,211,153,.34);stroke-width:1}
.arch .core{fill:rgba(34,211,238,.035);stroke:rgba(34,211,238,.22);stroke-width:1;stroke-dasharray:6 5}
.arch .t{fill:var(--ink);font-size:11.5px}
.arch .s{fill:var(--muted);font-size:10px}
.arch .lab{fill:var(--cyan);font-size:10.5px;letter-spacing:.4px}
.arch .lab-2{fill:var(--violet);font-size:10.5px;letter-spacing:.4px}
.arch .lab-3{fill:var(--green);font-size:10.5px;letter-spacing:.4px}
.arch .arrow{stroke:rgba(148,163,184,.4);stroke-width:1.4;fill:none}
.arch .arrow-d{stroke:rgba(34,211,238,.55);stroke-width:1.6;fill:none}
.arch .gov{fill:rgba(251,191,36,.05);stroke:rgba(251,191,36,.28);stroke-width:1}