/* ============================================================
   点线面体 · 维度实验室  DIMENSION LAB
   视觉体系：蓝图星图 BLUEPRINT CONSTELLATION
   纯原生 CSS3 · 零依赖 · 移动/PC 通用 · 兼容微信内置浏览器
   ============================================================ */

/* ---------- 0. 设计令牌 ---------- */
:root{
  --bg:        #05070F;
  --bg-2:      #0A0F1E;
  --panel:     #0C1224;
  --panel-2:   #101731;
  --ink:       #E9F1FF;
  --ink-dim:   #93A6C9;
  --ink-faint: #5A6B8C;

  --c-cyan:    #22E3F2;
  --c-magenta: #FF3D81;
  --c-gold:    #FFC94D;
  --c-violet:  #8B6CFF;
  --c-lime:    #64F0A0;

  --accent:    var(--c-cyan);
  --accent-2:  var(--c-violet);

  --line:        rgba(120,175,255,.13);
  --line-2:      rgba(120,190,255,.30);
  --glow:        0 0 24px -4px rgba(34,227,242,.5);

  --f-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
            "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  --f-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Consolas,
            "Courier New", monospace;
  --f-serif: "Songti SC", "STSong", "SimSun", "Source Han Serif SC", "Noto Serif SC", serif;

  --r:   4px;
  --r-l: 14px;
  --nav-h: 60px;
  --maxw: 1180px;
}

/* 维度主题：切换 data-dim 时，全局强调色 + 背景语言同步迁移 */
html[data-dim="point"]{ --accent:#FFC94D; --accent-2:#FF8A3D; }
html[data-dim="line"] { --accent:#22E3F2; --accent-2:#4AA8FF; }
html[data-dim="plane"]{ --accent:#64F0A0; --accent-2:#22E3F2; }
html[data-dim="solid"]{ --accent:#8B6CFF; --accent-2:#FF3D81; }

/* ---------- 1. 基础重置 ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  min-height:100vh;
  transition:background .8s ease;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
::selection{ background:rgba(34,227,242,.28); }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

/* ---------- 2. 维度背景场（随维度变化的空间结构） ---------- */
#field{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  transition:opacity .6s;
}
#field .layer{ position:absolute; inset:-10%; opacity:1; transition:opacity .8s ease; }
#field .l-star,
#field .l-grid,
#field .l-axis,
#field .l-persp{ opacity:0; }
html[data-dim="point"] #field .l-star{ opacity:1; }
html[data-dim="line"]  #field .l-grid{ opacity:1; }
html[data-dim="plane"] #field .l-grid,
html[data-dim="plane"] #field .l-axis{ opacity:1; }
html[data-dim="solid"] #field .l-grid,
html[data-dim="solid"] #field .l-axis,
html[data-dim="solid"] #field .l-persp{ opacity:1; }

#field .l-star{
  background:
    radial-gradient(circle at 50% 42%, rgba(255,201,77,.14), transparent 22%),
    radial-gradient(1.5px 1.5px at 18% 22%, rgba(255,255,255,.6), transparent),
    radial-gradient(1.5px 1.5px at 76% 31%, rgba(255,255,255,.45), transparent),
    radial-gradient(1.5px 1.5px at 41% 78%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.5px 1.5px at 88% 66%, rgba(255,255,255,.35), transparent),
    radial-gradient(1.5px 1.5px at 12% 61%, rgba(255,255,255,.4), transparent);
  opacity:0; animation:starPulse 6s ease-in-out infinite;
}
@keyframes starPulse{ 0%,100%{ filter:brightness(1) } 50%{ filter:brightness(1.7) } }

#field .l-grid{
  opacity:0;
  background-image:
    linear-gradient(to right, rgba(90,150,230,.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(90,150,230,.10) 1px, transparent 1px);
  background-size:64px 64px;
}
html[data-dim="plane"] #field .l-grid{
  background-image:
    linear-gradient(to right, rgba(100,240,160,.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(100,240,160,.13) 1px, transparent 1px),
    linear-gradient(to right, rgba(100,240,160,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(100,240,160,.05) 1px, transparent 1px);
  background-size:96px 96px, 96px 96px, 24px 24px, 24px 24px;
}
#field .l-axis{
  opacity:0;
  background:
    linear-gradient(to right, transparent calc(50% - .5px), rgba(139,108,255,.34) 50%, transparent calc(50% + .5px)),
    linear-gradient(to bottom, transparent calc(50% - .5px), rgba(139,108,255,.34) 50%, transparent calc(50% + .5px));
}
#field .l-persp{
  opacity:0;
  perspective:760px; perspective-origin:50% 46%;
}
#field .l-persp i{
  position:absolute; left:50%; top:46%; width:1px; height:1px; display:block;
  background:rgba(139,108,255,.6);
  box-shadow:0 0 3px rgba(139,108,255,.7);
}
#field .l-persp b{
  position:absolute; left:50%; top:46%; width:420px; height:420px;
  margin:-210px 0 0 -210px; display:block;
  border:1px solid rgba(139,108,255,.16);
  border-radius:2px;
  transform-style:preserve-3d;
  animation:spin3d 34s linear infinite;
  background:
    linear-gradient(to right, transparent calc(50% - .5px), rgba(139,108,255,.13) 50%, transparent calc(50% + .5px)),
    linear-gradient(to bottom, transparent calc(50% - .5px), rgba(139,108,255,.13) 50%, transparent calc(50% + .5px));
}
@keyframes spin3d{
  0%  { transform:rotateX(64deg) rotateZ(0deg) scale(1); }
  100%{ transform:rotateX(64deg) rotateZ(360deg) scale(1); }
}

/* 顶部渐晕 + 噪点 */
#vignette{
  position:fixed; inset:0; z-index:1; pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(34,227,242,.07), transparent 60%),
    radial-gradient(100% 70% at 50% 110%, rgba(139,108,255,.08), transparent 60%);
}
#grain{
  position:fixed; inset:0; z-index:2; pointer-events:none; opacity:.16;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='.5'/></svg>");
}

/* ---------- 3. 顶部导航 ---------- */
.topbar{
  position:fixed; top:0; left:0; right:0; z-index:60; height:var(--nav-h);
  display:flex; align-items:center; gap:14px;
  padding:0 18px;
  background:rgba(5,7,15,.82);
  border-bottom:1px solid var(--line);
}
@supports ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .topbar{
    background:rgba(5,7,15,.62);
    -webkit-backdrop-filter:saturate(160%) blur(14px);
    backdrop-filter:saturate(160%) blur(14px);
  }
}
.brand{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.brand .mark{
  width:26px; height:26px; position:relative; flex:0 0 auto;
}
.brand .mark s{
  position:absolute; inset:0; display:block; border:1.5px solid var(--accent);
  border-radius:50%; text-decoration:none;
  animation:breathe 4s ease-in-out infinite;
}
.brand .mark s:nth-child(2){
  inset:7px; border-radius:0; transform:rotate(45deg);
  border-color:var(--accent-2); animation-delay:-1.3s;
}
.brand .mark s:nth-child(3){
  inset:11px; border-radius:50%; background:var(--accent); border:0;
  animation-delay:-2.6s;
}
@keyframes breathe{ 0%,100%{ opacity:.45 } 50%{ opacity:1 } }
.brand .txt{ line-height:1.1; }
.brand .txt b{ display:block; font-size:15px; letter-spacing:.14em; font-weight:700; }
.brand .txt em{
  display:block; font-style:normal; font-family:var(--f-mono);
  font-size:9px; letter-spacing:.26em; color:var(--ink-faint);
}

.navlinks{ display:none; margin-left:auto; gap:2px; }
.navlinks a{
  font-size:13.5px; color:var(--ink-dim); padding:7px 12px; border-radius:var(--r);
  border:1px solid transparent; transition:.25s; white-space:nowrap;
}
.navlinks a:hover{ color:var(--ink); border-color:var(--line-2); background:rgba(34,227,242,.06); }
.navlinks a.on{ color:var(--accent); border-color:var(--accent); background:rgba(34,227,242,.09); }

/* 维度滑杆（全局） */
.dimbar{
  display:flex; align-items:center; gap:8px; margin-left:auto;
  border:1px solid var(--line-2); border-radius:999px; padding:3px 5px;
  background:rgba(10,15,30,.7);
}
.dimbar .lb{
  font-family:var(--f-mono); font-size:9px; letter-spacing:.16em;
  color:var(--ink-faint); padding-left:6px; display:none;
}
.dimbar button{
  width:26px; height:26px; border-radius:50%; display:grid; place-items:center;
  font-family:var(--f-mono); font-size:10px; color:var(--ink-faint);
  transition:.28s; position:relative;
}
.dimbar button:hover{ color:var(--ink); background:rgba(255,255,255,.06); }
.dimbar button.on{
  color:#05070F; background:var(--accent);
  box-shadow:0 0 14px -2px var(--accent);
}
.dimbar button.on::after{
  content:attr(data-tip); position:absolute; top:130%; left:50%; transform:translateX(-50%);
  font-size:10px; white-space:nowrap; color:var(--accent); letter-spacing:.1em;
  font-family:var(--f-sans);
}
@media (min-width:900px){
  .navlinks{ display:flex; }
  .dimbar{ margin-left:14px; }
  .dimbar .lb{ display:block; }
}

/* ---------- 4. 布局骨架 ---------- */
.wrap{ position:relative; z-index:5; }
.sec{
  max-width:var(--maxw); margin:0 auto; padding:64px 20px;
  position:relative;
}
.sec.tight{ padding-top:32px; padding-bottom:32px; }
.sec-hd{ margin-bottom:34px; }
.kicker{
  font-family:var(--f-mono); font-size:11px; letter-spacing:.3em;
  color:var(--accent); text-transform:uppercase; display:flex; align-items:center; gap:10px;
  margin-bottom:12px;
}
.kicker::before{ content:''; width:22px; height:1px; background:var(--accent); display:block; }
h1,h2,h3,h4{ line-height:1.28; margin:0 0 14px; font-weight:700; letter-spacing:.01em; }
h2.sec-t{
  font-family:var(--f-serif);
  font-size:clamp(26px,5.4vw,42px); font-weight:600; letter-spacing:.03em;
}
h2.sec-t .num{
  font-family:var(--f-mono); font-size:.46em; color:var(--accent);
  display:block; letter-spacing:.24em; margin-bottom:6px; font-weight:400;
}
.lead{ color:var(--ink-dim); font-size:16.5px; max-width:74ch; }
.lead strong{ color:var(--ink); font-weight:600; }
p{ margin:0 0 16px; }
.muted{ color:var(--ink-faint); }

/* 切角卡片 */
.cut{
  position:relative; background:var(--panel); border:1px solid var(--line);
  padding:22px 20px;
  clip-path:polygon(0 16px, 16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition:.35s;
}
.cut::before{
  content:''; position:absolute; left:0; top:16px; width:1px; height:calc(100% - 32px);
  background:linear-gradient(to bottom, transparent, var(--accent), transparent);
  opacity:.5;
}
.cut:hover{
  border-color:var(--line-2);
  background:var(--panel-2);
  transform:translateY(-3px);
}

/* 通用面板 */
.pane{
  border:1px solid var(--line); background:rgba(12,18,36,.66);
  border-radius:var(--r-l); padding:24px 22px;
}
.hr{
  height:1px; border:0; margin:34px 0;
  background:linear-gradient(to right, transparent, var(--line-2), transparent);
}
.tag{
  display:inline-flex; align-items:center; gap:6px;
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.14em;
  border:1px solid var(--line-2); border-radius:999px; padding:3px 10px;
  color:var(--ink-dim); text-transform:uppercase;
}
.tag.a{ color:var(--accent); border-color:var(--accent); background:rgba(34,227,242,.08); }

/* ---------- 5. 首屏 Hero ---------- */
.hero{
  position:relative; min-height:100vh; min-height:100svh;
  display:flex; align-items:center; padding:calc(var(--nav-h) + 24px) 20px 80px;
  overflow:hidden;
}
#cube{
  position:absolute; inset:0; width:100%; height:100%; z-index:1;
  opacity:.95;
  touch-action:pan-y;
  cursor:grab;
}
#cube:active{ cursor:grabbing; }
.hero-in{
  position:relative; z-index:3; max-width:var(--maxw); margin:0 auto; width:100%;
  pointer-events:none;
}
.hero-in a, .hero-in button{ pointer-events:auto; }
.hero h1{
  font-family:var(--f-serif); font-weight:600;
  font-size:clamp(46px,15vw,130px); line-height:.96; letter-spacing:.06em;
  margin:0 0 6px;
  text-shadow:0 0 60px rgba(34,227,242,.24);
}
.hero h1 span{
  display:inline-block; position:relative;
  color:var(--ink);
  transition:color .3s;
}
.hero h1 span:hover{ color:var(--accent); }
.hero .sub{
  font-family:var(--f-serif); font-size:clamp(18px,4.6vw,32px);
  color:var(--ink-dim); letter-spacing:.3em; margin:10px 0 22px;
}
.hero .en{
  font-family:var(--f-mono); font-size:clamp(9px,2.2vw,12px);
  letter-spacing:.44em; color:var(--ink-faint); margin-bottom:18px;
}
.hero .claim{
  border-left:2px solid var(--accent); padding:4px 0 4px 16px;
  max-width:60ch; color:var(--ink-dim); font-size:15.5px;
}
.hero .claim b{ color:var(--ink); }
.btnrow{ display:flex; flex-wrap:wrap; gap:12px; margin-top:30px; }
.btn{
  display:inline-flex; align-items:center; gap:9px;
  padding:12px 22px; border:1px solid var(--line-2); border-radius:999px;
  font-size:14px; letter-spacing:.06em; transition:.3s; background:rgba(12,18,36,.6);
}
.btn:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }
.btn.pri{
  background:var(--accent); border-color:var(--accent); color:#05070F; font-weight:600;
}
.btn.pri:hover{ color:#05070F; box-shadow:0 0 26px -4px var(--accent); }
.btn .ar{ font-family:var(--f-mono); }
.scrollhint{
  position:absolute; left:50%; bottom:22px; transform:translateX(-50%); z-index:4;
  font-family:var(--f-mono); font-size:9.5px; letter-spacing:.3em; color:var(--ink-faint);
  text-align:center; pointer-events:none;
}
.scrollhint i{
  display:block; width:1px; height:34px; margin:8px auto 0;
  background:linear-gradient(to bottom, transparent, var(--accent));
  animation:drop 1.9s ease-in-out infinite;
}
@keyframes drop{ 0%{ transform:scaleY(0); transform-origin:top } 55%{ transform:scaleY(1); transform-origin:top } 100%{ transform:scaleY(0); transform-origin:bottom } }

/* ---------- 6. 跑马灯命题 ---------- */
.marquee{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:rgba(10,15,30,.5); overflow:hidden; padding:12px 0; position:relative; z-index:5;
}
.marquee .track{
  display:flex; gap:52px; width:max-content;
  animation:slide 46s linear infinite;
}
.marquee span{
  font-family:var(--f-mono); font-size:12px; letter-spacing:.16em;
  color:var(--ink-faint); white-space:nowrap;
}
.marquee span b, .marquee .track b{ color:var(--accent); font-weight:400; font-family:var(--f-mono); }
@keyframes slide{ from{ transform:translateX(0) } to{ transform:translateX(-50%) } }

/* ---------- 6.1 控件：滑杆 / 搜索 ---------- */
input[type=range]{
  -webkit-appearance:none; appearance:none;
  height:6px; border-radius:3px; background:var(--line-2); outline:none; cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; appearance:none;
  width:22px; height:22px; border-radius:50%; background:var(--accent);
  border:2px solid #05070F; box-shadow:0 0 18px -2px var(--accent); cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:20px; height:20px; border-radius:50%; background:var(--accent);
  border:2px solid #05070F; cursor:pointer;
}
input[type=search]::-webkit-search-cancel-button{ -webkit-appearance:none; }

/* ---------- 7. 维度四卡 ---------- */
.dimgrid{ display:grid; gap:14px; grid-template-columns:1fr; }
@media (min-width:700px){ .dimgrid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1020px){ .dimgrid{ grid-template-columns:repeat(4,1fr); } }

.dcard{
  position:relative; border:1px solid var(--line); background:rgba(12,18,36,.6);
  padding:24px 20px 22px; overflow:hidden; transition:.4s; cursor:pointer;
  min-height:250px; display:flex; flex-direction:column;
  border-radius:var(--r-l);
}
.dcard:hover{ transform:translateY(-6px); border-color:var(--c); }
.dcard.on{ border-color:var(--c); background:rgba(255,255,255,.03); }
.dcard .glow{
  position:absolute; inset:0; pointer-events:none; opacity:.5;
  background:radial-gradient(80% 55% at 50% 0%, var(--c), transparent 72%);
  opacity:.12; transition:.5s;
}
.dcard:hover .glow{ opacity:.3; }
.dcard .code{
  font-family:var(--f-mono); font-size:10px; letter-spacing:.24em; color:var(--c);
  margin-bottom:auto;
}
.dcard .glyph{ height:74px; margin:10px 0 12px; }
.dcard .glyph svg{ height:100%; width:auto; overflow:visible; }
.dcard h3{
  font-family:var(--f-serif); font-size:34px; letter-spacing:.1em; margin:0 0 2px;
}
.dcard .nm{ font-size:12.5px; color:var(--c); letter-spacing:.2em; margin-bottom:10px; }
.dcard ul{ margin:0; padding:0; list-style:none; font-size:13px; color:var(--ink-dim); }
.dcard ul li{ position:relative; padding-left:14px; margin-bottom:5px; }
.dcard ul li::before{
  content:''; position:absolute; left:0; top:9px; width:5px; height:1px; background:var(--c);
}
.dcard .q{
  margin-top:14px; padding-top:12px; border-top:1px dashed var(--line);
  font-family:var(--f-serif); font-size:15px; color:var(--c); letter-spacing:.04em;
}
.dcard[data-d="point"]{ --c:var(--c-gold); }
.dcard[data-d="line"] { --c:var(--c-cyan); }
.dcard[data-d="plane"]{ --c:var(--c-lime); }
.dcard[data-d="solid"]{ --c:var(--c-violet); }

/* ---------- 8. 数据条 ---------- */
.stats{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
@media (min-width:820px){ .stats{ grid-template-columns:repeat(4,1fr); } }
.stat{ background:var(--bg-2); padding:26px 18px; text-align:center; position:relative; }
.stat .v{
  font-family:var(--f-mono); font-size:clamp(30px,7vw,46px); font-weight:700;
  color:var(--accent); line-height:1; letter-spacing:-.02em;
}
.stat .k{ margin-top:10px; font-size:12.5px; color:var(--ink-faint); letter-spacing:.12em; }
.stat .s{ font-family:var(--f-mono); font-size:9.5px; color:var(--ink-faint); margin-top:4px; letter-spacing:.14em; }

/* ---------- 9. 领域矩阵入口 ---------- */
.fgrid{ display:grid; grid-template-columns:repeat(2,1fr); gap:10px; }
@media (min-width:640px){ .fgrid{ grid-template-columns:repeat(3,1fr); } }
@media (min-width:960px){ .fgrid{ grid-template-columns:repeat(5,1fr); } }
.fcard{
  border:1px solid var(--line); background:rgba(12,18,36,.5); padding:18px 16px;
  border-radius:var(--r-l); transition:.32s; position:relative; overflow:hidden; display:block;
}
.fcard:hover{ border-color:var(--accent); background:rgba(34,227,242,.06); transform:translateY(-4px); }
.fcard .ico{ font-size:20px; margin-bottom:10px; display:block; filter:grayscale(.2); }
.fcard b{ display:block; font-size:15px; letter-spacing:.04em; margin-bottom:4px; }
.fcard em{
  font-style:normal; font-family:var(--f-mono); font-size:9.5px;
  letter-spacing:.16em; color:var(--ink-faint); display:block;
}
.fcard .bc{ margin-top:12px; height:3px; display:flex; gap:2px; }
.fcard .bc i{ flex:1; background:var(--line-2); border-radius:2px; }
.fcard .bc i.f1{ background:rgba(255,201,77,.7) }
.fcard .bc i.f2{ background:rgba(34,227,242,.7) }
.fcard .bc i.f3{ background:rgba(100,240,160,.7) }
.fcard .bc i.f4{ background:rgba(139,108,255,.85) }

/* ---------- 10. 法则 ---------- */
.law{
  display:grid; gap:20px; border:1px solid var(--line); border-radius:var(--r-l);
  padding:26px 22px; background:rgba(12,18,36,.55); margin-bottom:16px;
  transition:.35s; position:relative; overflow:hidden;
}
@media (min-width:820px){ .law{ grid-template-columns:150px 1fr; align-items:start; gap:30px; } }
.law:hover{ border-color:var(--accent); background:rgba(34,227,242,.04); }
.law .no{
  font-family:var(--f-mono); font-size:62px; line-height:.85; font-weight:700;
  color:transparent; -webkit-text-stroke:1px var(--accent-2); letter-spacing:-.04em;
}
.law h3{ font-family:var(--f-serif); font-size:23px; margin:0 0 10px; letter-spacing:.04em; }
.law p{ color:var(--ink-dim); font-size:15px; margin:0 0 10px; }
.law .why{
  font-size:13.5px; color:var(--ink-faint); border-left:2px solid var(--accent);
  padding-left:12px; font-family:var(--f-mono); letter-spacing:.02em;
}

/* ---------- 11. 表格 ---------- */
.tblwrap{ overflow-x:auto; -webkit-overflow-scrolling:touch; border:1px solid var(--line); border-radius:var(--r-l); }
table{ width:100%; border-collapse:collapse; min-width:560px; font-size:14px; }
th,td{ padding:13px 14px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top; }
thead th{
  background:rgba(34,227,242,.07); color:var(--accent);
  font-family:var(--f-mono); font-size:11px; letter-spacing:.16em; font-weight:400;
  text-transform:uppercase; white-space:nowrap;
}
tbody tr:hover{ background:rgba(255,255,255,.025); }
tbody tr:last-child td{ border-bottom:0; }
td b{ font-weight:600; }
.d-dot{ color:var(--c-gold) } .d-lin{ color:var(--c-cyan) }
.d-pla{ color:var(--c-lime) } .d-sol{ color:var(--c-violet) }

/* ---------- 12. 交互图表 ---------- */
.chartbox{
  border:1px solid var(--line); border-radius:var(--r-l); background:rgba(8,12,24,.7);
  padding:18px 14px; position:relative;
}
.chartbox svg{ width:100%; height:auto; display:block; overflow:visible; }
.chartbox .cap{
  font-family:var(--f-mono); font-size:10px; letter-spacing:.14em; color:var(--ink-faint);
  margin-top:12px; padding-top:10px; border-top:1px solid var(--line);
}
#tip{
  position:fixed; z-index:99; pointer-events:none; opacity:0;
  background:rgba(5,7,15,.95); border:1px solid var(--accent); border-radius:6px;
  padding:9px 12px; font-size:12.5px; line-height:1.55; transition:opacity .16s;
  max-width:230px; box-shadow:0 10px 34px -8px rgba(0,0,0,.9);
}
#tip b{ color:var(--accent); font-family:var(--f-mono); font-size:11px; letter-spacing:.1em; display:block; margin-bottom:3px }

/* 紧凑版图表容器：限制最大宽度，避免缩小后的图表被拉伸 */
.chartbox.mini{
  max-width:360px; margin-inline:auto; padding:12px 10px;
}
.chartbox.mini .cap{ margin-top:9px; padding-top:8px; font-size:9.5px; line-height:1.7; }

.heat{ display:block; width:100%; }
.heat .cell{ cursor:default; transition:.25s; }
.heat .cell:hover rect{ stroke:rgba(255,255,255,.45); stroke-width:1; }
.heat text{ font-family:var(--f-mono); }

/* ---------- 13. 领域详情（fields） ---------- */
.fsel{ display:flex; gap:8px; overflow-x:auto; padding-bottom:6px; margin-bottom:24px; -webkit-overflow-scrolling:touch; }
.fsel::-webkit-scrollbar{ height:3px }
.fsel::-webkit-scrollbar-thumb{ background:var(--line-2) }
.fsel button{
  flex:0 0 auto; padding:9px 16px; border:1px solid var(--line); border-radius:999px;
  font-size:13.5px; color:var(--ink-dim); transition:.25s; white-space:nowrap;
  background:rgba(12,18,36,.5);
}
.fsel button:hover{ color:var(--ink); border-color:var(--line-2); }
.fsel button.on{ background:var(--accent); border-color:var(--accent); color:#05070F; font-weight:600; }

.fdetail{ display:none; animation:fadeUp .5s ease; }
.fdetail.on{ display:block; }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(14px) } to{ opacity:1; transform:none } }

.fhead{ display:flex; flex-wrap:wrap; align-items:baseline; gap:12px; margin-bottom:6px; }
.fhead h3{ font-family:var(--f-serif); font-size:clamp(24px,5.6vw,36px); margin:0; letter-spacing:.04em; }
.fhead .en{ font-family:var(--f-mono); font-size:11px; letter-spacing:.24em; color:var(--ink-faint); }
.fquote{
  font-family:var(--f-serif); font-size:16px; color:var(--accent);
  border-left:2px solid var(--accent); padding-left:14px; margin:18px 0 26px; letter-spacing:.04em;
}
.dstack{ display:grid; gap:14px; }
.drow{
  border:1px solid var(--line); border-radius:var(--r-l); overflow:hidden;
  background:rgba(12,18,36,.5);
}
.drow .dh{
  display:flex; align-items:center; gap:12px; padding:14px 16px;
  border-bottom:1px solid var(--line); background:rgba(255,255,255,.02); cursor:pointer;
}
.drow .dh .lv{
  width:30px; height:30px; border-radius:50%; display:grid; place-items:center; flex:0 0 auto;
  font-family:var(--f-mono); font-size:11px; border:1px solid var(--c); color:var(--c);
}
.drow .dh b{ font-size:16px; letter-spacing:.05em; }
.drow .dh .sm{ font-size:12.5px; color:var(--ink-faint); margin-left:auto; font-family:var(--f-mono); }
.drow .db{ padding:16px 16px 18px; font-size:14.6px; color:var(--ink-dim); }
.drow .db strong{ color:var(--ink); }
.drow .db .refs{ margin-top:14px; display:flex; flex-wrap:wrap; gap:7px; }
.drow .db .refs span{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.06em;
  border:1px dashed var(--line-2); border-radius:4px; padding:3px 9px; color:var(--ink-faint);
}
.drow[data-l="0"]{ --c:var(--c-gold) }
.drow[data-l="1"]{ --c:var(--c-cyan) }
.drow[data-l="2"]{ --c:var(--c-lime) }
.drow[data-l="3"]{ --c:var(--c-violet) }
.drow.collapsed .db{ display:none; }
.drow.collapsed .dh .sm::after{ content:' ▸' }
.drow:not(.collapsed) .dh .sm::after{ content:' ▾' }

/* ---------- 14. 测验 / lab ---------- */
.qz{ border:1px solid var(--line-2); border-radius:var(--r-l); padding:24px 20px; background:rgba(8,12,24,.7); }
.qz .bar{ height:3px; background:var(--line); border-radius:2px; overflow:hidden; margin-bottom:22px; }
.qz .bar i{ display:block; height:100%; background:var(--accent); width:0; transition:width .4s ease; }
.qz .qno{ font-family:var(--f-mono); font-size:11px; letter-spacing:.2em; color:var(--accent); margin-bottom:10px; }
.qz h4{ font-family:var(--f-serif); font-size:clamp(19px,4.6vw,25px); margin:0 0 20px; letter-spacing:.03em; line-height:1.5; }
.opts{ display:grid; gap:10px; }
.opt{
  text-align:left; border:1px solid var(--line); border-radius:10px; padding:14px 16px;
  font-size:14.5px; color:var(--ink-dim); transition:.24s; display:flex; gap:12px; align-items:flex-start;
  background:rgba(12,18,36,.5);
}
.opt:hover{ border-color:var(--accent); color:var(--ink); background:rgba(34,227,242,.07); transform:translateX(4px); }
.opt .k{
  font-family:var(--f-mono); font-size:10px; border:1px solid var(--line-2); border-radius:4px;
  padding:2px 7px; flex:0 0 auto; color:var(--ink-faint); margin-top:2px;
}
.result{ display:none; animation:fadeUp .6s ease; }
.result.on{ display:block; }
.rscore{
  display:grid; gap:14px; margin:24px 0;
}
.rbar{ display:grid; grid-template-columns:52px 1fr 46px; gap:12px; align-items:center; font-size:13.5px; }
.rbar .track{ height:8px; background:var(--line); border-radius:4px; overflow:hidden; }
.rbar .track i{ display:block; height:100%; width:0; transition:width 1s cubic-bezier(.2,.9,.3,1); border-radius:4px; }
.rbar .val{ font-family:var(--f-mono); font-size:12px; text-align:right; color:var(--ink-dim); }
.verdict{
  border:1px solid var(--accent); background:rgba(34,227,242,.07); border-radius:var(--r-l);
  padding:22px 20px; margin-top:26px;
}
.verdict .big{ font-family:var(--f-serif); font-size:28px; color:var(--accent); letter-spacing:.08em; }

/* 清单 */
.checklist{ display:grid; gap:9px; }
.ci{
  display:flex; gap:12px; align-items:flex-start; border:1px solid var(--line);
  border-radius:10px; padding:13px 15px; cursor:pointer; transition:.25s;
  background:rgba(12,18,36,.45); font-size:14.4px; color:var(--ink-dim);
}
.ci:hover{ border-color:var(--line-2); }
.ci .bx{
  width:17px; height:17px; flex:0 0 auto; border:1px solid var(--line-2); border-radius:3px;
  margin-top:4px; display:grid; place-items:center; font-size:11px; color:transparent; transition:.2s;
}
.ci.done{ border-color:var(--accent); color:var(--ink); background:rgba(34,227,242,.06); }
.ci.done .bx{ background:var(--accent); border-color:var(--accent); color:#05070F; }
.ci .dmn{ font-family:var(--f-mono); font-size:10px; color:var(--ink-faint); display:block; margin-top:3px }

/* 搜索 */
.search{
  width:100%; background:rgba(8,12,24,.8); border:1px solid var(--line-2); border-radius:999px;
  padding:14px 20px; color:var(--ink); font-size:15px; font-family:var(--f-sans);
  margin-bottom:20px; -webkit-appearance:none;
}
.search::placeholder{ color:var(--ink-faint); }
.glist{ display:grid; gap:10px; }
.gitem{
  border:1px solid var(--line); border-radius:10px; padding:15px 17px;
  background:rgba(12,18,36,.45);
}
.gitem b{ display:block; font-size:15px; margin-bottom:4px; }
.gitem b em{ font-style:normal; font-family:var(--f-mono); font-size:10px; color:var(--ink-faint); margin-left:8px; letter-spacing:.1em }
.gitem p{ margin:0; font-size:13.8px; color:var(--ink-dim); }

/* ---------- 14. 图示条（几何直观） ---------- */
.figstrip{
  display:grid; gap:14px; grid-template-columns:1fr;
}
@media (min-width:780px){ .figstrip{ grid-template-columns:1fr 1fr } }
.fig{
  border:1px solid var(--line); border-radius:var(--r-l); background:rgba(8,12,24,.6);
  padding:18px 16px 14px; transition:.35s;
}
.fig:hover{ border-color:var(--line-2); background:rgba(12,18,36,.75); }
.fig svg{ width:100%; height:auto; display:block; overflow:visible; }
.fig .ft{
  font-family:var(--f-mono); font-size:10px; letter-spacing:.2em; color:var(--accent);
  margin-bottom:12px; display:flex; align-items:center; gap:8px;
}
.fig .ft::before{ content:''; width:16px; height:1px; background:var(--accent); }
.fig h4{ font-family:var(--f-serif); font-size:17px; margin:14px 0 6px; letter-spacing:.04em; }
.fig p{ font-size:13.6px; color:var(--ink-dim); margin:0; line-height:1.7; }
.fig .key{ stroke:var(--accent); fill:none; }
.fig text{ font-family:ui-monospace,'SF Mono',Consolas,monospace; }

/* ---------- 15. 时间轴 ---------- */
.tl{ position:relative; padding-left:28px; }
.tl::before{
  content:''; position:absolute; left:8px; top:6px; bottom:6px; width:1px;
  background:linear-gradient(to bottom, transparent, var(--line-2) 12%, var(--line-2) 88%, transparent);
}
.tlitem{ position:relative; padding-bottom:26px; }
.tlitem::before{
  content:''; position:absolute; left:-24px; top:7px; width:9px; height:9px; border-radius:50%;
  border:1.5px solid var(--accent); background:var(--bg);
}
.tlitem:hover::before{ background:var(--accent); box-shadow:0 0 12px var(--accent); }
.tlitem .yr{ font-family:var(--f-mono); font-size:11px; letter-spacing:.18em; color:var(--accent); }
.tlitem h4{ margin:4px 0 6px; font-size:17px; letter-spacing:.03em; }
.tlitem p{ font-size:14.2px; color:var(--ink-dim); margin:0; }

/* ---------- 16. 引用 ---------- */
.pull{
  font-family:var(--f-serif); font-size:clamp(18px,4.4vw,26px); line-height:1.7;
  text-align:center; color:var(--ink); letter-spacing:.05em;
  padding:34px 20px; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  margin:0; position:relative;
}
.pull .src{
  display:block; font-family:var(--f-mono); font-size:11px; color:var(--ink-faint);
  letter-spacing:.2em; margin-top:14px; font-style:normal;
}

/* 每日一言 */
.quote-live{
  border:1px solid var(--line); border-left:3px solid var(--accent);
  border-radius:0 var(--r-l) var(--r-l) 0; padding:20px 20px 18px;
  background:rgba(12,18,36,.5); position:relative;
}
.quote-live .t{ font-family:var(--f-serif); font-size:17px; line-height:1.8; }
.quote-live .f{
  font-family:var(--f-mono); font-size:11px; color:var(--accent);
  letter-spacing:.14em; margin-top:10px;
}
.quote-live .sync{
  position:absolute; top:14px; right:16px; font-family:var(--f-mono); font-size:9.5px;
  letter-spacing:.16em; color:var(--ink-faint);
}
.quote-live .sync.ok::before{ content:'● '; color:var(--c-lime) }
.quote-live .sync.off::before{ content:'● '; color:var(--c-gold) }

/* ---------- 17. 公式/代码块 ---------- */
.formula{
  font-family:var(--f-mono); font-size:14px; background:rgba(0,0,0,.35);
  border:1px solid var(--line); border-radius:8px; padding:16px 18px;
  color:var(--c-lime); overflow-x:auto; white-space:nowrap; letter-spacing:.02em;
}
.formula em{ color:var(--ink-faint); font-style:normal }

/* ---------- 18. 页脚 ---------- */
footer{
  border-top:1px solid var(--line); margin-top:40px; padding:44px 20px 110px;
  position:relative; z-index:5; background:rgba(5,7,15,.7);
}
.foot-in{ max-width:var(--maxw); margin:0 auto; }
.foot-nav{ display:flex; flex-wrap:wrap; gap:10px 22px; margin-bottom:24px; }
.foot-nav a{ font-size:13.5px; color:var(--ink-dim); }
.foot-nav a:hover{ color:var(--accent); }
.foot-meta{
  font-family:var(--f-mono); font-size:10.5px; color:var(--ink-faint);
  letter-spacing:.1em; line-height:2;
}
.foot-meta b{ color:var(--ink-dim); font-weight:400 }

/* ---------- 19. 移动端底部导航 ---------- */
.tabbar{
  position:fixed; left:0; right:0; bottom:0; z-index:70;
  display:flex; border-top:1px solid var(--line);
  background:rgba(5,7,15,.92); padding-bottom:env(safe-area-inset-bottom);
}
@supports ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .tabbar{ background:rgba(5,7,15,.76); -webkit-backdrop-filter:blur(16px); backdrop-filter:blur(16px); }
}
.tabbar a{
  flex:1; text-align:center; padding:9px 2px 8px; font-size:10px; color:var(--ink-faint);
  letter-spacing:.06em; transition:.2s;
}
.tabbar a i{ display:block; font-size:17px; font-style:normal; margin-bottom:2px; filter:grayscale(1) opacity(.55); }
.tabbar a.on{ color:var(--accent); }
.tabbar a.on i{ filter:none; }
@media (min-width:900px){ .tabbar{ display:none } footer{ padding-bottom:60px } }

/* ---------- 20. 滚动显现 ---------- */
.rv{ opacity:0; transform:translateY(26px); transition:opacity .8s cubic-bezier(.2,.8,.3,1), transform .8s cubic-bezier(.2,.8,.3,1); }
.rv.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .rv{ opacity:1; transform:none; transition:none }
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important }
}

/* ---------- 21. 工具类 ---------- */
.g2{ display:grid; gap:16px; }
@media (min-width:760px){ .g2{ grid-template-columns:1fr 1fr } }
.g3{ display:grid; gap:16px; }
@media (min-width:760px){ .g3{ grid-template-columns:repeat(3,1fr) } }
.mt0{ margin-top:0 } .mb0{ margin-bottom:0 }
.center{ text-align:center }
.nowrap{ white-space:nowrap }
.pager{ display:flex; justify-content:space-between; gap:12px; margin-top:46px; }
.pager a{
  flex:1; border:1px solid var(--line); border-radius:var(--r-l); padding:16px 18px;
  transition:.3s; background:rgba(12,18,36,.45);
}
.pager a:hover{ border-color:var(--accent); background:rgba(34,227,242,.06) }
.pager a em{ display:block; font-style:normal; font-family:var(--f-mono); font-size:10px; letter-spacing:.2em; color:var(--ink-faint); margin-bottom:5px }
.pager a b{ font-size:15px; letter-spacing:.03em }
.pager a.next{ text-align:right }

/* 装饰性坐标刻度 */
.ticks{
  display:flex; justify-content:space-between; font-family:var(--f-mono);
  font-size:9px; color:var(--ink-faint); letter-spacing:.1em;
  border-top:1px solid var(--line); padding-top:8px; margin-top:34px;
}


/* ---------- 16. 升维工作台（B 期） ---------- */
.tpl-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:18px }
@media(max-width:680px){ .tpl-grid{ grid-template-columns:repeat(2,1fr) } }
.tpl{ border:1px solid var(--line); border-radius:var(--r-l); padding:14px; background:rgba(8,12,24,.6); cursor:pointer; transition:.25s }
.tpl:hover{ border-color:var(--accent); transform:translateY(-2px) }
.tpl .ic{ font-size:20px; line-height:1 }
.tpl b{ display:block; margin:7px 0 4px; font-size:15px }
.tpl em{ color:var(--ink-faint); font-style:normal; font-size:11px; font-family:var(--f-mono) }
.tpl p{ margin:6px 0 0; color:var(--ink-dim); font-size:12.5px; line-height:1.55 }

.ws{ display:grid; grid-template-columns:1fr 372px; gap:28px; align-items:start }
@media(max-width:880px){ .ws{ grid-template-columns:1fr } }
.ws-form{ min-width:0 }
.ws-prev{ position:sticky; top:84px; background:rgba(8,12,24,.45); border:1px solid var(--line); border-radius:var(--r-l); padding:14px }
@media(max-width:880px){ .ws-prev{ position:static } }

.pathbox{ border:1px solid var(--line); border-radius:12px; background:rgba(5,7,15,.6); padding:8px; overflow:hidden }
.pathbox svg{ width:100%; height:auto; display:block }
.cap{ font-family:var(--f-mono); font-size:10px; letter-spacing:.14em; color:var(--ink-faint); margin-top:10px }

.fillmeter{ margin-top:14px; display:grid; gap:9px }
.fbar{ display:grid; grid-template-columns:26px 1fr 38px; align-items:center; gap:10px; font-family:var(--f-mono); font-size:11px }
.fbar .fl{ color:var(--ink-dim) }
.fbar .ft{ height:7px; background:var(--line); border-radius:4px; overflow:hidden }
.fbar .ft i{ display:block; height:100%; width:0; transition:width .4s }
.fbar .fv{ color:var(--ink-faint); text-align:right }

.field label{ display:block; font-family:var(--f-mono); font-size:11px; letter-spacing:.12em; color:var(--ink-faint); margin-bottom:8px }
#ws-problem{ width:100%; background:rgba(8,12,24,.7); border:1px solid var(--line); border-radius:var(--r-l); color:var(--ink); padding:13px 14px; font-size:16px; font-family:var(--f-serif) }
#ws-problem:focus{ outline:none; border-color:var(--accent) }

.step{ border:1px solid var(--line); border-radius:var(--r-l); background:rgba(8,12,24,.6); margin-top:14px; overflow:hidden }
.step-hd{ display:flex; align-items:center; gap:12px; padding:13px 14px }
.step-hd .lv{ width:30px; height:30px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-weight:700; font-family:var(--f-mono); color:#05070F; font-size:14px; flex:none }
.step-hd .st-t{ flex:1; min-width:0 }
.step-hd .st-t b{ font-size:15px; display:block }
.step-hd .st-t .sm{ font-family:var(--f-mono); font-size:10.5px; color:var(--ink-faint); letter-spacing:.03em }
.ex-btn{ flex:none; background:transparent; border:1px solid var(--line); color:var(--ink-dim); border-radius:6px; padding:5px 10px; font-size:11px; font-family:var(--f-mono); cursor:pointer }
.ex-btn:hover{ border-color:var(--accent); color:var(--accent) }
.step-ex{ display:none; padding:0 14px 14px; border-top:1px solid var(--line) }
.step.ex-on .step-ex{ display:block }
.step-ex p{ color:var(--ink-dim); font-size:13.5px; margin:12px 0 0; line-height:1.7 }
.step-ex .prompt{ margin-top:10px; font-family:var(--f-mono); font-size:11.5px; color:var(--accent); border-left:2px solid var(--accent); padding-left:12px; line-height:1.7 }
.step-bd{ padding:14px }
.ws-ta{ width:100%; background:rgba(5,7,15,.6); border:1px solid var(--line); border-radius:10px; color:var(--ink); padding:11px 12px; font-size:14.5px; resize:vertical; font-family:inherit; line-height:1.6 }
.ws-ta:focus{ outline:none; border-color:var(--accent) }
.varlist{ margin-top:10px; display:grid; gap:8px }
.varitem{ display:grid; grid-template-columns:1fr 32px; gap:8px }
.vinput{ background:rgba(5,7,15,.6); border:1px solid var(--line); border-radius:8px; color:var(--ink); padding:9px 11px; font-size:13.5px; font-family:inherit }
.vinput:focus{ outline:none; border-color:var(--c-lime) }
.vdel{ background:transparent; border:1px solid var(--line); color:var(--ink-faint); border-radius:8px; cursor:pointer; font-size:16px; line-height:1 }
.vdel:hover{ color:#FF6B6B; border-color:#FF6B6B }
.addvar{ margin-top:10px; width:100%; background:transparent; border:1px dashed var(--line); color:var(--c-lime); border-radius:8px; padding:8px; font-size:12.5px; cursor:pointer; font-family:var(--f-mono) }
.addvar:hover{ border-color:var(--c-lime) }

.ws-actions{ display:flex; flex-wrap:wrap; gap:10px; margin-top:20px }
.btn.sm{ padding:8px 13px; font-size:12.5px }
.btn.ghost{ background:transparent; border:1px solid var(--line); color:var(--ink-dim) }
.btn.ghost:hover{ border-color:var(--accent); color:var(--accent) }

/* 案例库弹层 */
.modal{ position:fixed; inset:0; z-index:80; background:rgba(3,5,12,.82); display:none; align-items:flex-start; justify-content:center; padding:64px 16px; overflow:auto }
.modal.on{ display:flex }
.modal-in{ width:100%; max-width:580px; border:1px solid var(--line); border-radius:var(--r-l); background:#0A0F1E; padding:22px; box-shadow:0 30px 80px -20px rgba(0,0,0,.8) }
.modal-in h3{ font-family:var(--f-serif); font-size:22px; margin:0 }
.modal-close{ float:right; background:transparent; border:1px solid var(--line); color:var(--ink-dim); border-radius:8px; width:32px; height:32px; cursor:pointer; font-size:16px }
.modal-close:hover{ border-color:var(--accent); color:var(--accent) }
.case{ border:1px solid var(--line); border-radius:10px; padding:12px 14px; margin-top:12px; background:rgba(8,12,24,.6) }
.case b{ font-size:15px }
.case .cd{ font-family:var(--f-mono); font-size:10.5px; color:var(--ink-faint); margin-left:8px }
.case .mini{ display:flex; gap:4px; margin-top:9px }
.case .mini i{ flex:1; height:5px; border-radius:3px; background:var(--line) }
.case .mini i.on{ }
.case .cacts{ display:flex; gap:8px; margin-top:11px; flex-wrap:wrap }
.case .cacts .btn{ padding:6px 11px; font-size:12px }
.case .ck{ margin-top:10px; font-family:var(--f-mono); font-size:11px; color:var(--ink-faint); display:flex; align-items:center; gap:7px; cursor:pointer }
.case .ck input{ accent-color:var(--accent) }
.cmp{ margin-top:16px; border-top:1px solid var(--line); padding-top:14px }
.cmp .ch{ font-family:var(--f-mono); font-size:11px; color:var(--accent); letter-spacing:.1em; margin-bottom:10px }
.cmp .crow{ margin-bottom:11px }
.cmp .ct{ font-size:12.5px; color:var(--ink-dim); margin-bottom:5px }
.cmp .cbar{ position:relative; height:18px; border-radius:5px; overflow:hidden; background:rgba(5,7,15,.6); border:1px solid var(--line) }
.cmp .cbar i{ position:absolute; top:0; bottom:0; left:0; border-radius:5px }
.cmp .cbar .lab{ position:absolute; top:0; bottom:0; display:flex; align-items:center; padding-left:8px; font-family:var(--f-mono); font-size:10.5px; color:#E9F1FF; z-index:2 }
.empty-hint{ color:var(--ink-faint); font-size:13px; text-align:center; padding:24px 0; font-family:var(--f-mono) }
.toast{ position:fixed; left:50%; bottom:80px; transform:translateX(-50%) translateY(20px); background:rgba(8,12,24,.95); border:1px solid var(--accent); color:var(--ink); padding:11px 18px; border-radius:10px; font-size:13px; opacity:0; transition:.28s; z-index:90; pointer-events:none }
.toast.on{ opacity:1; transform:translateX(-50%) translateY(0) }

/* 场景分类折叠（B 期增强） */
.tpl-cat{ border:1px solid var(--line); border-radius:var(--r-l); margin-top:14px; overflow:hidden; background:rgba(8,12,24,.45) }
.tpl-cat:first-child{ margin-top:0 }
.tpl-cat-hd{ display:flex; align-items:center; gap:12px; width:100%; background:transparent; border:0; padding:14px 16px; cursor:pointer; color:var(--ink); text-align:left }
.tpl-cat-hd:hover{ background:rgba(34,227,242,.04) }
.tpl-cat-hd .arr{ font-size:11px; color:var(--accent); transition:transform .25s; flex:none }
.tpl-cat.collapsed .tpl-cat-hd .arr{ transform:rotate(-90deg) }
.tpl-cat-hd b{ font-size:15px; font-family:var(--f-serif); letter-spacing:.02em }
.tpl-cat-hd em{ font-style:normal; font-family:var(--f-mono); font-size:10.5px; color:var(--ink-faint); letter-spacing:.08em; margin-left:auto; white-space:nowrap }
.tpl-cat-bd{ padding:4px 14px 16px; border-top:1px solid var(--line); display:block }
.tpl-cat.collapsed .tpl-cat-bd{ display:none }
.tpl-cat .tpl-grid{ margin-top:12px }
.tag-pub{ display:inline-block; font-family:var(--f-mono); font-size:9.5px; letter-spacing:.06em; color:#05070F; background:var(--c-lime); border-radius:5px; padding:1px 6px; margin-left:8px; vertical-align:middle }
.pub{ display:inline-flex; align-items:center; gap:7px; font-size:13px; color:var(--ink-dim); cursor:pointer; font-family:var(--f-mono); user-select:none }
.pub input{ accent-color:var(--accent); width:15px; height:15px; margin:0 }

/* ---------- 17. 术语锚点卡（A 期） ---------- */
.term{ color:var(--accent); border-bottom:1px dashed var(--accent-2); cursor:help; font-style:normal; padding:0 1px; border-radius:3px; transition:background .2s; }
.term:hover, .term:focus-visible{ background:rgba(34,227,242,.14); outline:none; }
#termpop{ position:fixed; z-index:120; max-width:300px; background:#0C1224; border:1px solid var(--accent); border-radius:10px; padding:12px 13px; font-size:13px; line-height:1.62; color:var(--ink); box-shadow:0 18px 50px -16px rgba(0,0,0,.85); opacity:0; transform:translateY(6px); transition:opacity .18s, transform .18s; pointer-events:none; }
#termpop.on{ opacity:1; transform:none; }
#termpop b{ display:block; font-size:14.5px; color:var(--accent); margin-bottom:4px; font-family:var(--f-serif); letter-spacing:.02em; }
#termpop em{ font-style:normal; font-family:var(--f-mono); font-size:10px; letter-spacing:.1em; color:var(--ink-faint); display:block; margin-bottom:7px; }
#termpop .go{ display:block; margin-top:9px; font-family:var(--f-mono); font-size:10.5px; color:var(--accent-2); letter-spacing:.06em; }

/* 跳到正文（可达性） */
.skip{ position:fixed; top:-60px; left:12px; z-index:200; background:var(--accent); color:#05070F; padding:9px 16px; border-radius:8px; font-size:13px; font-weight:600; transition:top .2s; text-decoration:none; }
.skip:focus{ top:10px; }

/* ---------- 18. 领域误区与可验证指标（C 期） ---------- */
.fextra{ margin-top:18px; display:grid; gap:14px; }
@media(min-width:680px){ .fextra{ grid-template-columns:1fr 1fr; } }
.fcard{ border:1px solid var(--line); border-radius:var(--r-l); padding:15px 16px; background:rgba(12,18,36,.4); }
.fcard h4{ margin:0 0 12px; font-size:12.5px; font-family:var(--f-mono); letter-spacing:.1em; color:var(--ink-dim); display:flex; align-items:center; gap:8px; }
.fcard h4::before{ content:''; width:9px; height:9px; border-radius:2px; flex:none; }
.fcard.pit h4{ color:#FF8A7A; } .fcard.pit h4::before{ background:#FF8A7A; }
.fcard.met h4{ color:var(--c-lime); } .fcard.met h4::before{ background:var(--c-lime); }
.fcard ul{ margin:0; padding:0; list-style:none; display:grid; gap:9px; }
.fcard li{ position:relative; padding-left:18px; font-size:13.5px; color:var(--ink-dim); line-height:1.62; }
.fcard.pit li::before{ content:'!'; position:absolute; left:2px; top:-1px; color:#FF8A7A; font-weight:800; }
.fcard.met li::before{ content:'◈'; position:absolute; left:0; top:0; color:var(--c-lime); }

/* ---------- 19. 诊断历史折线（C 期） ---------- */
.qhist{ margin-top:16px; }
.qhist svg{ width:100%; height:auto; display:block; }
.histlegend{ display:flex; gap:16px; flex-wrap:wrap; margin-top:10px; font-family:var(--f-mono); font-size:11px; color:var(--ink-dim); }
.histlegend i{ display:inline-block; width:14px; height:3px; border-radius:2px; margin-right:6px; vertical-align:middle; }
.qhnote{ font-size:12px; color:var(--ink-faint); margin-top:8px; font-family:var(--f-mono); }

/* ---------- 20. 参考文献页（C 期） ---------- */
.reffilter{ display:flex; flex-wrap:wrap; gap:8px; margin:18px 0 24px; }
.reffilter button{ border:1px solid var(--line); background:rgba(12,18,36,.5); color:var(--ink-dim); border-radius:20px; padding:7px 14px; font-size:12.5px; cursor:pointer; font-family:var(--f-mono); transition:.2s; }
.reffilter button:hover{ border-color:var(--line-2); color:var(--ink); }
.reffilter button.on{ background:var(--accent); border-color:var(--accent); color:#05070F; font-weight:600; }
.ritem{ display:grid; grid-template-columns:54px 1fr; gap:14px; padding:14px 0; border-bottom:1px solid var(--line); }
.ritem .yr{ font-family:var(--f-mono); font-size:13px; color:var(--accent); padding-top:2px; letter-spacing:.04em; }
.ritem .rc{ min-width:0; }
.ritem .rt{ font-family:var(--f-serif); font-size:16px; letter-spacing:.02em; }
.ritem .ra{ font-family:var(--f-mono); font-size:11px; color:var(--ink-faint); letter-spacing:.04em; margin:3px 0 7px; }
.ritem .rn{ font-size:13.5px; color:var(--ink-dim); line-height:1.65; }
.ritem .tags{ margin-top:9px; display:flex; flex-wrap:wrap; gap:6px; }
.ritem .tags span{ font-family:var(--f-mono); font-size:10px; border:1px solid var(--line); border-radius:4px; padding:2px 8px; color:var(--ink-faint); }

/* ---------- 21. 打印样式（A 期） ---------- */
@media print{
  :root{ --ink:#141414; --ink-dim:#3a3a3a; --ink-faint:#666; --bg:#fff; --bg-2:#fff; --panel:#fff; --line:#cfcfcf; --accent:#0a4d8c; --accent-2:#0a4d8c; }
  body{ background:#fff !important; color:#141414 !important; font-size:12px; }
  .topbar,.tabbar,#field,#vignette,#grain,#progress,footer,.dimbar,.skip,.scrollhint,.marquee,#live-quote,.pub{ display:none !important; }
  .sec{ padding:0 !important; margin:0 0 16px !important; }
  .rv{ opacity:1 !important; transform:none !important; animation:none !important; }
  .fdetail{ display:block !important; }
  .drow.collapsed .db{ display:block !important; }
  .drow .db{ color:#222 !important; }
  .sec-hd .lead,.kicker,.cap{ color:#555 !important; }
  h1,h2,h3,h4,.fhead h3,.drow .dh b{ color:#0a0a0a !important; }
  a{ color:#0a3a8a !important; text-decoration:underline; }
  svg{ max-width:100% !important; }
  svg text{ fill:#222 !important; }
  svg path,svg line,svg polygon,svg rect,svg circle{ stroke:#444 !important; }
  .heat rect{ fill:#efefef !important; stroke:#bbb !important; }
  .chartbox{ page-break-inside:avoid; }
  @page{ margin:1.4cm; }
}

/* ---------- 22. 动效降级（A 期，扩展） ---------- */
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .drow .dh .sm::after{ content:'' !important; }
  .scrollhint,.marquee{ display:none !important; }
  .hero canvas, #cube{ visibility:hidden; }
}