/* ==========================================================================
   国家游泳中心（水立方）· 冷热源数字孪生交付版 —— 「水镜 AQUA」设计基座
   明亮水蓝主题 · 玻璃拟态 · 全域圆角 ≥12px · spring 动效
   ========================================================================== */
:root{
  /* 水镜 AQUA 色板：主青 / 深蓝 / 冰蓝高光 / 暖琥珀点缀 */
  --bg:#F5FAFD; --bg-grid:rgba(11,95,165,.045);
  --card:#FFFFFF; --line:#DCE9F2; --line-soft:#EAF3F9;
  --ink:#0A2E4E; --ink-2:#2E5A7E; --ink-3:#6C8CA6;
  --cyan:#00C2D1; --cyan-deep:#0B5FA5; --cyan-soft:rgba(0,194,209,.12);
  --ice:#7FDBFF; --ice-soft:rgba(127,219,255,.16);
  --amber:#F59E0B; --amber-soft:rgba(245,158,11,.12);
  --green:#0FB981; --green-soft:rgba(15,185,129,.12);
  --red:#E11D48; --red-soft:rgba(225,29,72,.10);
  --blue:#2563EB;
  --radius:18px; --radius-sm:12px;
  /* 字号/行高 token（水镜 AQUA 全站统一） */
  --fs-xs:10.5px; --fs-sm:12px; --fs-md:13.5px; --fs-lg:15px; --fs-xl:21px; --fs-xxl:34px;
  --lh-tight:1.3; --lh:1.65;
  --shadow:0 1px 2px rgba(10,46,78,.05),0 10px 28px -14px rgba(11,95,165,.18);
  --shadow-lift:0 18px 44px -16px rgba(11,95,165,.30);
  --spring:cubic-bezier(.34,1.4,.44,1);
  --ease-out:cubic-bezier(.22,.8,.3,1);
  --sans:-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --mono:'SF Mono','JetBrains Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--bg);color:var(--ink);
  background-image:
    radial-gradient(1100px 500px at 85% -8%,rgba(127,219,255,.20),transparent 60%),
    radial-gradient(900px 480px at -10% 12%,rgba(0,194,209,.10),transparent 55%),
    linear-gradient(var(--bg-grid) 1px,transparent 1px),linear-gradient(90deg,var(--bg-grid) 1px,transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
/* 文本纪律：min-width:0 + 任意断行（EN 长词允许折断），数字一律 nowrap + 等宽数字 */
*{min-width:0}
.card,.kpi,.judge,.vitem,.concl,.btn,.tnode,.fbox,.diag-item,.br-line,.plan-item,.role,.tour-card,.flow .node,
.tb td,.tb th,.stat,.comp-row,.br-k,.split-even>*,.split>*{overflow-wrap:anywhere;word-break:normal}
h1,h2,h3,h4,h5,p,li,label,small,span,b,strong,a,.tip{overflow-wrap:anywhere}
.num,.tb td.n,.tb th.n,.tb .num,.cap b,.sc-m b,.kpi .k-val,.hero-num b,.br-k .v,.stat b,.dp-kpi b,
.tour-card b,.sc-nums b,.sec-clock,.mono-sm,[data-m]{white-space:nowrap;font-variant-numeric:tabular-nums}
a{color:var(--cyan-deep);text-decoration:none}
a:hover{color:var(--cyan)}
::selection{background:var(--cyan-soft)}

/* ---------- 顶导航 ---------- */
.topnav{
  position:sticky;top:0;z-index:200;height:64px;display:flex;align-items:center;gap:8px;
  padding:0 28px;background:rgba(247,252,255,.78);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);
  border-bottom:1px solid rgba(127,219,255,.35);
  box-shadow:0 6px 24px -18px rgba(11,95,165,.35);
}
.brand{display:flex;align-items:center;gap:11px;margin-right:18px;color:var(--ink)}
/* 气泡 logo：3×3 圆点阵 · 呼吸动画 */
.brand .logo{
  width:36px;height:36px;border-radius:12px;position:relative;flex:none;
  background:linear-gradient(135deg,var(--cyan) 0%,var(--cyan-deep) 78%);
  box-shadow:0 6px 16px -6px rgba(0,194,209,.55),inset 0 1px 0 rgba(255,255,255,.45);
  animation:logo-breathe 3.6s var(--ease-out) infinite;
}
.brand .logo::before{content:'';position:absolute;inset:7px;
  background:
    radial-gradient(circle 2.3px at 20% 20%,#fff 98%,transparent),
    radial-gradient(circle 2.3px at 50% 20%,rgba(255,255,255,.92) 98%,transparent),
    radial-gradient(circle 2.3px at 80% 20%,#fff 98%,transparent),
    radial-gradient(circle 2.3px at 20% 50%,rgba(255,255,255,.92) 98%,transparent),
    radial-gradient(circle 2.3px at 50% 50%,#fff 98%,transparent),
    radial-gradient(circle 2.3px at 80% 50%,rgba(255,255,255,.92) 98%,transparent),
    radial-gradient(circle 2.3px at 20% 80%,#fff 98%,transparent),
    radial-gradient(circle 2.3px at 50% 80%,rgba(255,255,255,.92) 98%,transparent),
    radial-gradient(circle 2.3px at 80% 80%,#fff 98%,transparent);
  animation:logo-dots 3.6s var(--ease-out) infinite;
}
@keyframes logo-breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.055)}}
@keyframes logo-dots{0%,100%{opacity:.92;transform:scale(1)}50%{opacity:1;transform:scale(1.12)}}
.brand b{font-size:15px;letter-spacing:.02em}
.brand small{display:block;font-size:10px;color:var(--ink-3);font-weight:400;letter-spacing:.16em}
.navlinks{display:flex;gap:3px;flex:1;flex-wrap:nowrap;min-width:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.navlinks::-webkit-scrollbar{display:none}
.navlinks a{
  flex:none;padding:7px 14px;border-radius:999px;font-size:13.5px;color:var(--ink-2);font-weight:500;transition:.18s;
}
.navlinks a:hover{background:var(--cyan-soft);color:var(--cyan-deep)}
.navlinks a.on{background:linear-gradient(120deg,var(--cyan-deep),var(--cyan));color:#fff;
  box-shadow:0 6px 16px -6px rgba(11,95,165,.55)}
.pill-status{
  display:flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;font-size:12px;color:var(--ink-2);
  background:linear-gradient(180deg,#fff,var(--ice-soft));border:1px solid rgba(127,219,255,.55);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 4px 12px -6px rgba(11,95,165,.25);
  font-family:var(--mono);white-space:nowrap;
}
.pill-status .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(15,185,129,.5);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(15,185,129,.45)}70%{box-shadow:0 0 0 9px rgba(15,185,129,0)}100%{box-shadow:0 0 0 0 rgba(15,185,129,0)}}
.nav-burger{display:none;border:1px solid var(--line);background:var(--card);border-radius:12px;padding:7px 11px;font-size:15px;color:var(--ink)}
.nav-drawer{position:fixed;inset:64px 0 auto 0;background:var(--card);border-bottom:1px solid var(--line);padding:14px 22px;display:none;flex-direction:column;gap:4px;z-index:190}
.nav-drawer a{padding:10px 6px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
/* 顶栏语言切换（中 / EN） */
.lang-sw{display:flex;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:2px;gap:2px;flex:none}
.lang-sw button{border:none;background:transparent;padding:4px 10px;border-radius:999px;font-size:12px;cursor:pointer;color:var(--ink-3);font-family:var(--mono);font-weight:600;transition:.18s}
.lang-sw button.on{background:var(--ink);color:#fff}
.lang-sw button:hover:not(.on){color:var(--cyan-deep)}
/* EN 模式排版适配：英文更长，字号与内边距收敛、表格表头允许换行 */
html[lang=en] .navlinks a{padding:7px 11px;font-size:12.5px}
html[lang=en] .brand b{font-size:13.5px}
html[lang=en] .btn{font-size:13px}
html[lang=en] .btn.sm{font-size:12px;padding:6px 11px}
@media(max-width:1280px){
  .brand small{display:none}
  .brand b{font-size:14px}
  .navlinks a{padding:7px 11px;font-size:12.5px}
  html[lang=en] .navlinks a{padding:6px 9px;font-size:11.5px}
  .pill-status{display:none}
}
html[lang=en] .page-head h1{font-size:30px}
html[lang=en] .kpi .k-label{font-size:11px}
html[lang=en] .tb th{white-space:normal}
html[lang=en] .hud-chip{font-size:10.5px}
html[lang=en] .hud-chip b{font-size:15px}
html[lang=en] .dev-chip{font-size:10.5px}
html[lang=en] .badge-line{font-size:10.5px}
@media (max-width:768px){html[lang=en] .page-head h1{font-size:21px}
  html[lang=en] .brand b{font-size:12px;white-space:nowrap}
  .brand b{white-space:nowrap}}

/* ---------- 页面骨架 ---------- */
.page{max-width:1240px;margin:0 auto;padding:44px 28px 90px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.22em;color:var(--cyan-deep);text-transform:uppercase;margin-bottom:10px}
.page-head h1{font-size:34px;line-height:1.25;letter-spacing:-.01em;margin-bottom:12px}
.page-head h1 .grad{background:linear-gradient(92deg,var(--cyan-deep),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.page-head p.lead{color:var(--ink-2);font-size:15.5px;max-width:860px}
.page-head{margin-bottom:34px}
h2.sec{font-size:21px;margin:46px 0 18px;display:flex;align-items:center;gap:10px}
h2.sec::before{content:'';width:4px;height:20px;border-radius:2px;background:linear-gradient(var(--cyan),var(--cyan-deep))}
h3.sub{font-size:16px;margin:26px 0 12px;color:var(--ink)}

/* ---------- 卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.85);padding:22px}
.card h4{font-size:14.5px;margin-bottom:14px;color:var(--ink);display:flex;align-items:center;gap:8px}
.card h4 .tag{font-size:10.5px;font-family:var(--mono);color:var(--cyan-deep);background:var(--cyan-soft);padding:2px 8px;border-radius:99px;letter-spacing:.08em}
.grid{display:grid;gap:18px}
.split{display:grid;grid-template-columns:1.55fr 340px;gap:18px;align-items:start}
.split-even{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}

/* KPI */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.kpi::after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--cyan);opacity:.85}
.kpi.amber::after{background:var(--amber)}.kpi.green::after{background:var(--green)}.kpi.ink::after{background:var(--ink)}
.kpi .k-label{font-size:12px;color:var(--ink-3);margin-bottom:6px}
.kpi .k-val{font-family:var(--mono);font-size:26px;font-weight:600;line-height:1.15;letter-spacing:-.01em}
.kpi .k-val small{font-size:13px;color:var(--ink-3);font-weight:400;margin-left:3px}
.kpi .k-sub{font-size:11.5px;color:var(--ink-3);margin-top:5px}
.kpi.hero{grid-column:span 2}
.kpi.hero .k-val{font-size:40px}
.kpi.hero .k-label{font-size:13px}

/* 表格 */
table.tb{width:100%;border-collapse:collapse;font-size:13.5px}
.tb th{background:#F3F7FB;color:var(--ink-2);font-weight:600;text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);font-size:12.5px;white-space:nowrap}
.tb td{padding:9px 12px;border-bottom:1px solid var(--line-soft);color:var(--ink-2)}
.tb tr:last-child td{border-bottom:none}
.tb td:first-child,.tb th:first-child{font-weight:600;color:var(--ink)}
.tb td:last-child,.tb th:last-child{font-weight:600}
.tb tr.total td{font-weight:700;color:var(--ink);background:var(--cyan-soft)}
.tb .num, .tb td.n{font-family:var(--mono);text-align:right;white-space:nowrap}
.tb-scroll{max-height:420px;overflow:auto;border:1px solid var(--line);border-radius:var(--radius-sm)}
.tb-scroll thead th{position:sticky;top:0;z-index:2}

/* 结论条 / 深色叙事卡 */
.concl{border:1.5px dashed var(--cyan-deep);border-radius:var(--radius-sm);padding:13px 16px;font-size:13.5px;color:var(--ink-2);background:linear-gradient(120deg,var(--cyan-soft),var(--ice-soft));margin-top:14px}
.concl b{color:var(--ink)}
.concl.warn{border-color:var(--amber);background:var(--amber-soft)}
.dark-card{background:linear-gradient(140deg,#0A2E4E 0%,#0B5FA5 62%,#00A8C5 130%);color:#D8EDF8;border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-lift);position:relative;overflow:hidden}
.dark-card::after{content:'';position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,219,255,.28),transparent 68%);pointer-events:none}
.dark-card h4{color:#fff;font-size:16px;margin-bottom:12px}
.dark-card p{font-size:13.5px;color:#BCE0F0;margin-bottom:8px}
.dark-card .num,.dark-card b{color:var(--ice)}
.dark-card .big{font-family:var(--mono);font-size:32px;font-weight:600;color:#fff}

/* 滑块控件 */
.ctl{margin-bottom:16px}
.ctl .ctl-head{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.ctl .ctl-head label{color:var(--ink-2);font-weight:500}
.ctl .ctl-head .val{font-family:var(--mono);color:var(--cyan-deep);font-weight:600}
.ctl .note{font-size:11px;color:var(--ink-3);margin-top:3px}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:5px;border-radius:3px;background:linear-gradient(90deg,var(--cyan) var(--fill,50%),#DCE6EF var(--fill,50%));outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:17px;height:17px;border-radius:50%;background:#fff;border:2.5px solid var(--cyan-deep);box-shadow:0 2px 6px rgba(11,43,69,.25);cursor:pointer}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink-2);font-size:13.5px;font-weight:500;cursor:pointer;transition:.18s;font-family:var(--sans)}
.btn:hover{border-color:var(--cyan);color:var(--cyan-deep);box-shadow:0 6px 18px -8px rgba(0,194,209,.55)}
.btn.primary{background:linear-gradient(120deg,var(--cyan-deep),var(--cyan));color:#fff;border-color:transparent;
  box-shadow:0 8px 20px -8px rgba(11,95,165,.6)}
.btn.primary:hover{filter:brightness(1.08);box-shadow:0 10px 26px -8px rgba(11,95,165,.7);color:#fff}
.btn.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.sm{padding:6px 13px;font-size:12.5px}

/* 判定卡 */
.judge{display:flex;gap:12px;align-items:flex-start;padding:15px 16px;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--card)}
.judge .badge{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff}
.judge.ok .badge{background:var(--green)}.judge.warn .badge{background:var(--amber)}.judge.bad .badge{background:var(--red)}
.judge b{font-size:13.5px;display:block;margin-bottom:2px}
.judge p{font-size:12.5px;color:var(--ink-3)}

/* 页脚 */
.site-foot{border-top:1px solid var(--line);margin-top:60px;padding:30px 28px;text-align:center;color:var(--ink-3);font-size:12.5px}
.site-foot .num{font-size:11.5px}
.site-foot #foot2{white-space:normal;overflow-wrap:anywhere;word-break:break-word}

/* 图表容器 */
.chart{width:100%;height:300px}
.chart.tall{height:380px}
.chart-cap{font-size:12px;color:var(--ink-3);margin-top:8px;font-family:var(--mono)}

/* KB 面板 */
.kb-item{border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 15px;margin-bottom:10px;background:var(--card)}
.kb-item .kb-q{font-size:13px;font-weight:600;margin-bottom:6px}
.kb-item .kb-src{font-family:var(--mono);font-size:11px;color:var(--cyan-deep);margin-bottom:6px}
.kb-item .kb-txt{font-size:12.5px;color:var(--ink-2);white-space:pre-wrap;max-height:200px;overflow:auto}
.kb-item .kb-score{font-family:var(--mono);font-size:11px;color:var(--ink-3)}

/* 3D 页 */
.t3d-wrap{position:relative;height:calc(100vh - 64px);min-height:560px;overflow:hidden;background:#EEF4F8}
.t3d-wrap canvas{display:block}
.t3d-panel{position:absolute;top:18px;left:18px;width:308px;max-height:calc(100% - 36px);overflow:auto;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.t3d-panel h4{font-size:14px;margin-bottom:10px}
.t3d-toolbar{position:absolute;top:18px;right:18px;display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.t3d-hud{position:absolute;left:18px;bottom:18px;display:flex;gap:10px;flex-wrap:wrap;max-width:calc(100% - 360px)}
.hud-chip{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px;padding:9px 14px;font-size:11.5px;color:var(--ink-3);box-shadow:var(--shadow)}
.hud-chip b{display:block;font-family:var(--mono);font-size:17px;color:var(--ink);font-weight:600}
.t3d-info{position:absolute;right:18px;top:190px;width:300px;max-height:calc(100% - 380px);overflow:auto;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;display:none}
.t3d-info.show{display:block}
.sim-console{position:absolute;left:50%;transform:translateX(-50%);bottom:18px;width:min(680px,92%);background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 18px;display:none}
.sim-console.show{display:block}
.legend-chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-2);margin-right:12px}
.legend-chip i{width:11px;height:11px;border-radius:3px;display:inline-block}

/* 提示 */
.tip{font-size:12px;color:var(--ink-3)}
.mono-sm{font-family:var(--mono);font-size:12px;color:var(--ink-2)}
.badge-line{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;padding:2.5px 10px;border-radius:99px;background:var(--cyan-soft);color:var(--cyan-deep);margin-right:6px}

@media (max-width:960px){
  .split,.split-even{grid-template-columns:minmax(0,1fr)}
  .split>*,.split-even>*{min-width:0}
  .navlinks{display:none}
  .nav-burger{display:block}
  .page{padding:28px 16px 70px}
  .page-head h1{font-size:26px}
  .kpi.hero{grid-column:span 1}
  .t3d-panel{width:min(300px,calc(100% - 36px))}
  .t3d-info{right:18px;left:18px;width:auto;top:auto;bottom:170px;max-height:38%}
}
/* ---------- 手机端（≤768px） ---------- */
@media (max-width:768px){
  /* 顶栏精简：隐藏状态徽章与品牌英文副标题，避免把汉堡按钮挤出视口 */
  .topnav{padding:0 14px;gap:8px}
  .brand{margin-right:auto;gap:8px}
  .brand b{font-size:14px}
  .brand small{display:none}
  .pill-status{display:none}
  /* 页面骨架收紧 */
  .page{padding:24px 14px 60px}
  .page-head{margin-bottom:24px}
  .page-head h1{font-size:24px}
  .page-head p.lead{font-size:14px}
  h2.sec{font-size:18px;margin:36px 0 14px}
  .card{padding:16px}
  /* 宽表格转为卡片内横向滚动，不再撑破版心 */
  table.tb{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .tb>tbody{display:table;min-width:100%;border-collapse:collapse}
  .tb td:first-child,.tb th:first-child{white-space:nowrap}
  /* KPI 数值字号收敛，避免被卡片右缘裁切 */
  .kpis{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
  .kpi{padding:13px 14px}
  .kpi .k-val{font-size:21px}
  .kpi.hero .k-val{font-size:30px}
  /* 图表高度适配小屏 */
  .chart{height:260px}
  .chart.tall{height:320px}
  /* 结论条与深色叙事卡内边距收紧 */
  .concl{padding:11px 13px;font-size:12.5px}
  .dark-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}
@media print{
  .topnav,.site-foot,.btn,.nav-burger{display:none !important}
  body{background:#fff}
  .card{box-shadow:none;break-inside:avoid}
}

/* ---------- 水立方专属 ---------- */
/* 气泡 logo 额外高光（点阵本体见 .brand .logo 定义） */
.brand .logo{
  box-shadow:0 6px 16px -6px rgba(0,194,209,.6),0 2px 6px -2px rgba(11,95,165,.4),inset 0 1px 0 rgba(255,255,255,.5),inset 0 -6px 12px -8px rgba(11,95,165,.6);
}
/* 深色叙事卡顶部冰蓝高光条 */
.dark-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;border-radius:3px 3px 0 0;
  background:linear-gradient(90deg,var(--cyan),var(--ice) 55%,var(--cyan-deep));
}