/* ============================================================
   超级工厂 ERP · 系统介绍演示稿
   视觉基调：深蓝夜空 + 青紫极光 + 玻璃层级
   舞台：1600 × 900（16:9），整体等比缩放
   ============================================================ */

:root {
  --stage-w: 1600px;
  --stage-h: 900px;

  --bg: #060a14;
  --bg-2: #08101f;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --ink: #e9eff9;
  --ink-2: #c3d0e2;
  --muted: #8ea1ba;
  --dim: #5d7089;

  --cyan: #45e0ff;
  --cyan-soft: rgba(69, 224, 255, 0.12);
  --violet: #9b8cff;
  --violet-soft: rgba(155, 140, 255, 0.12);
  --mint: #5ee8b5;
  --amber: #ffc46b;
  --rose: #ff7a9c;

  --a: var(--cyan);

  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 10px;

  --shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.9);
  --font: "Inter", "SF Pro Display", "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Code", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #03060d;
  color: var(--ink);
  font-family: var(--font);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; }

/* ---------------- 舞台 ---------------- */

#viewport {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1200px 700px at 50% -10%, rgba(30, 60, 120, 0.28), transparent 60%),
    #03060d;
}

#stage {
  width: var(--stage-w);
  height: var(--stage-h);
  position: relative;
  transform-origin: center center;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(69, 224, 255, 0.1), transparent 55%),
    radial-gradient(900px 620px at 96% 4%, rgba(155, 140, 255, 0.12), transparent 55%),
    radial-gradient(1000px 700px at 50% 118%, rgba(94, 232, 181, 0.06), transparent 60%),
    linear-gradient(180deg, #070d1a 0%, #060a14 45%, #050810 100%);
  overflow: hidden;
  box-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.9);
}

/* 网格 + 噪点 + 暗角 */
#stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(140, 180, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 180, 255, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 38%, #000 12%, transparent 76%);
  mask-image: radial-gradient(ellipse at 50% 38%, #000 12%, transparent 76%);
  pointer-events: none;
  z-index: 0;
}

#stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  opacity: 0.035;
  pointer-events: none;
  mix-blend-mode: overlay;
  z-index: 1;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
}
.orb--1 {
  width: 540px; height: 540px; left: -140px; top: -180px;
  background: radial-gradient(circle, rgba(69, 224, 255, 0.35), transparent 65%);
  animation: drift 22s ease-in-out infinite alternate;
}
.orb--2 {
  width: 620px; height: 620px; right: -200px; top: -120px;
  background: radial-gradient(circle, rgba(155, 140, 255, 0.32), transparent 65%);
  animation: drift 26s ease-in-out infinite alternate-reverse;
}
.orb--3 {
  width: 700px; height: 700px; left: 38%; bottom: -420px;
  background: radial-gradient(circle, rgba(94, 232, 181, 0.16), transparent 65%);
  animation: drift 30s ease-in-out infinite alternate;
}
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(40px, 30px, 0) scale(1.08); }
}

/* ---------------- 幻灯片 ---------------- */

.slide {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 62px 78px 66px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.994);
  transition: opacity 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
    visibility 0s linear 0.55s;
}
.slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition-delay: 0s;
}

/* 入场上浮 */
.rv {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.rv.rv-in { opacity: 1; transform: none; }

/* ---------------- 页头 ---------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--a);
  opacity: 0.92;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--a));
}
.eyebrow--plain::before { display: none; }

.h2 {
  margin: 14px 0 0;
  font-size: 50px;
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 650;
  color: var(--ink);
}
.h2 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--a), #ffffff 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  margin: 13px 0 0;
  max-width: 1010px;
  font-size: 17.5px;
  line-height: 1.62;
  color: var(--muted);
}
.lead b { color: var(--ink-2); font-weight: 600; }

.s-head { flex: none; }
.s-body { flex: 1; min-height: 0; margin-top: 30px; display: flex; flex-direction: column; }
.s-body--tight { margin-top: 22px; }
.s-body--spread { justify-content: space-between; }

.s-foot {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--dim);
}

/* 右侧页码水印 */
.slide-no {
  position: absolute;
  right: 78px;
  bottom: 34px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.18);
  z-index: 3;
}

/* ---------------- 通用排版 ---------------- */

.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.row { display: flex; gap: 16px; align-items: stretch; }
.col { display: flex; flex-direction: column; gap: 16px; }
.spread { justify-content: space-between; }
.center { align-items: center; }
.flex1 { flex: 1; min-width: 0; min-height: 0; }

/* ---------------- 卡片 ---------------- */

.card {
  position: relative;
  padding: 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
}
.card--flat { background: rgba(255, 255, 255, 0.025); }
.card--accent {
  border-color: color-mix(in srgb, var(--a) 34%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--a) 10%, transparent), rgba(255, 255, 255, 0.015));
  box-shadow: 0 24px 70px -46px var(--a);
}
.card--fill { display: flex; flex-direction: column; }
.card__top { display: flex; align-items: center; gap: 12px; }
.card__k {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}
.card__t {
  margin: 12px 0 0;
  font-size: 19px;
  font-weight: 620;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.card__d {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}
.card__d b { color: var(--ink-2); font-weight: 600; }

/* 高卡片：末位元素贴底，避免中部大片留白 */
.card--fill > .chip-row:last-child,
.card--fill > .kpi:last-child,
.card--fill > .meter:last-child { margin-top: auto; }
.card--fill > .divider-h + .kpi { margin-top: 14px; }
.card--vcenter { display: flex; flex-direction: column; justify-content: center; }
.card--center { justify-content: center; }
.card--center > .chip-row:last-child { margin-top: 14px; }
.card--center > .kpi:last-child { margin-top: 18px; }

.ico-badge {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: var(--a);
  background: color-mix(in srgb, var(--a) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--a) 26%, transparent);
}
.ico { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ico--lg { width: 22px; height: 22px; }

/* 角标 */
.bracket { position: relative; }
.bracket::after {
  content: "";
  position: absolute;
  right: 12px; top: 12px;
  width: 14px; height: 14px;
  border-top: 1px solid var(--a);
  border-right: 1px solid var(--a);
  opacity: 0.45;
}

/* ---------------- 小件 ---------------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  font-size: 12px;
  color: var(--ink-2);
  white-space: nowrap;
}
.chip--a {
  border-color: color-mix(in srgb, var(--a) 30%, transparent);
  background: color-mix(in srgb, var(--a) 9%, transparent);
  color: var(--a);
}
.chip--mint { border-color: rgba(94, 232, 181, 0.3); background: rgba(94, 232, 181, 0.08); color: var(--mint); }
.chip--amber { border-color: rgba(255, 196, 107, 0.3); background: rgba(255, 196, 107, 0.08); color: var(--amber); }
.chip--rose { border-color: rgba(255, 122, 156, 0.3); background: rgba(255, 122, 156, 0.08); color: var(--rose); }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.kv { display: flex; align-items: baseline; gap: 10px; }
.kv__k { font-size: 12.5px; color: var(--dim); min-width: 74px; }
.kv__v { font-size: 13.5px; color: var(--ink-2); }

.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.kpi {
  padding: 18px 20px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.028);
}
.kpi__v {
  font-size: 36px;
  font-weight: 660;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(120deg, var(--ink), var(--a));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.kpi__v small { font-size: 15px; letter-spacing: 0; margin-left: 3px; }
.kpi__l { margin-top: 9px; font-size: 12px; color: var(--muted); letter-spacing: 0.02em; }

/* ---------------- 流程 ---------------- */

.flow { display: flex; align-items: stretch; gap: 0; }
.node {
  flex: 1;
  min-width: 0;
  position: relative;
  padding: 15px 14px 14px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.node--a {
  border-color: color-mix(in srgb, var(--a) 32%, transparent);
  background: color-mix(in srgb, var(--a) 8%, transparent);
}
.node__i { color: var(--a); display: flex; }
.node__t { font-size: 13.5px; font-weight: 600; color: var(--ink); line-height: 1.3; }
.node__d { font-size: 11.5px; color: var(--dim); line-height: 1.45; }
.node__n {
  position: absolute; right: 10px; top: 9px;
  font-family: var(--mono); font-size: 10px; color: rgba(255, 255, 255, 0.22);
}

.link {
  flex: none;
  width: 26px;
  align-self: center;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), color-mix(in srgb, var(--a) 60%, transparent));
  position: relative;
}
.link::after {
  content: "";
  position: absolute;
  right: -1px; top: -3px;
  width: 6px; height: 6px;
  border-top: 1px solid color-mix(in srgb, var(--a) 70%, transparent);
  border-right: 1px solid color-mix(in srgb, var(--a) 70%, transparent);
  transform: rotate(45deg);
}

/* 编号步骤 */
.steps { display: flex; gap: 12px; }
.step { flex: 1; position: relative; padding-top: 34px; }
.step::before {
  content: attr(data-n);
  position: absolute; left: 0; top: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--mono); font-size: 10.5px;
  color: var(--a);
  border: 1px solid color-mix(in srgb, var(--a) 38%, transparent);
  background: color-mix(in srgb, var(--a) 10%, transparent);
}
.step::after {
  content: "";
  position: absolute; left: 30px; top: 12px; right: -12px;
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--a) 34%, transparent), transparent);
}
.step:last-child::after { display: none; }
.step__t { font-size: 14px; font-weight: 600; color: var(--ink); }
.step__d { margin-top: 6px; font-size: 12px; line-height: 1.55; color: var(--muted); }

/* 进度条 */
.meter {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.meter__fill {
  position: absolute; inset: 0 auto 0 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 18px rgba(69, 224, 255, 0.5);
}

/* ---------------- 表格 ---------------- */

.matrix { width: 100%; border-collapse: separate; border-spacing: 0 7px; }
.matrix th {
  padding: 0 14px 3px;
  text-align: left;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.matrix td {
  padding: 12px 14px;
  font-size: 13px;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.028);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.matrix td:first-child {
  border-left: 1px solid var(--line);
  border-radius: 11px 0 0 11px;
  color: var(--ink);
  font-weight: 600;
}
.matrix td:last-child {
  border-right: 1px solid var(--line);
  border-radius: 0 11px 11px 0;
}
.matrix td .chip { font-size: 11px; padding: 3px 8px; }
.matrix tr:hover td { background: rgba(255, 255, 255, 0.045); }

/* ---------------- 时间轴 ---------------- */

.tl { position: relative; display: flex; gap: 14px; }
.tl::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 27px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.tl__item { flex: 1; position: relative; padding-top: 52px; }
.tl__dot {
  position: absolute; left: 0; top: 22px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1.5px solid var(--a);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--a) 10%, transparent);
}
.tl__t { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.tl__d { margin-top: 6px; font-size: 11.5px; line-height: 1.55; color: var(--muted); }
.tl__tag {
  display: inline-block; margin-bottom: 7px;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em;
  color: var(--a);
}

/* ---------------- 封面 ---------------- */

.cover { justify-content: center; padding: 0 96px; }
.cover__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(140, 180, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 180, 255, 0.07) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse at 32% 46%, #000 5%, transparent 66%);
  mask-image: radial-gradient(ellipse at 32% 46%, #000 5%, transparent 66%);
  pointer-events: none;
}
.cover__ring {
  position: absolute;
  right: -120px; top: 50%;
  width: 760px; height: 760px;
  transform: translateY(-50%);
  border-radius: 50%;
  border: 1px solid rgba(69, 224, 255, 0.14);
  box-shadow: inset 0 0 120px rgba(69, 224, 255, 0.06);
  pointer-events: none;
}
.cover__ring::before, .cover__ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(155, 140, 255, 0.14);
}
.cover__ring::before { inset: 90px; }
.cover__ring::after { inset: 190px; border-style: dashed; border-color: rgba(69, 224, 255, 0.1); }

.cover__brand {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em;
  color: var(--cyan); text-transform: uppercase;
}
.cover__brand span { color: var(--dim); letter-spacing: 0.16em; }
.cover__mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 0 30px rgba(69, 224, 255, 0.45);
  position: relative;
}
.cover__mark::after {
  content: "";
  position: absolute; inset: 7px;
  border-radius: 3px;
  border: 1.5px solid rgba(6, 10, 20, 0.85);
}

.cover h1 {
  margin: 26px 0 0;
  font-size: 82px;
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 680;
}
.cover h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #ffffff 0%, var(--cyan) 46%, var(--violet) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cover__sub {
  margin: 24px 0 0;
  font-size: 21px;
  color: var(--ink-2);
  letter-spacing: 0.01em;
}
.cover__tags { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 9px; max-width: 780px; }
.cover__meta {
  margin-top: 44px;
  display: flex; align-items: center; gap: 18px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--dim);
}
.cover__meta i { width: 46px; height: 1px; background: var(--line-strong); display: inline-block; }

.cover__stats {
  position: absolute; right: 96px; bottom: 80px;
  display: grid; grid-template-columns: repeat(2, 148px); gap: 12px;
}
.cover__stat {
  padding: 15px 16px;
  border-left: 1px solid rgba(69, 224, 255, 0.35);
  background: linear-gradient(90deg, rgba(69, 224, 255, 0.07), transparent);
}
.cover__stat b { display: block; font-size: 30px; font-weight: 650; letter-spacing: -0.03em; line-height: 1; }
.cover__stat span { display: block; margin-top: 7px; font-size: 11px; color: var(--muted); letter-spacing: 0.06em; }

/* ---------------- 多仓地图 ---------------- */

.map { position: relative; flex: 1; min-height: 0; }
.map svg.routes { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.map .route {
  fill: none;
  stroke-width: 1.6;
  stroke-dasharray: 5 7;
  animation: dash 26s linear infinite;
  opacity: 0.95;
  filter: drop-shadow(0 0 3px rgba(69, 224, 255, 0.25));
}
.map .route--cyan { stroke: url(#gCyan); }
.map .route--violet { stroke: url(#gViolet); }
.map .route--mint { stroke: url(#gMint); }
@keyframes dash { to { stroke-dashoffset: -240; } }

.wh {
  position: absolute;
  width: 244px;
  padding: 15px 16px 14px;
  border-radius: 15px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 22, 38, 0.92), rgba(9, 16, 28, 0.88));
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 50px -34px #000;
}
.wh--a { border-color: rgba(69, 224, 255, 0.36); box-shadow: 0 0 0 1px rgba(69, 224, 255, 0.05), 0 26px 60px -40px rgba(69, 224, 255, 0.7); }
.wh--v { border-color: rgba(155, 140, 255, 0.34); }
.wh--m { border-color: rgba(94, 232, 181, 0.3); }
.wh--g { border-color: rgba(255, 196, 107, 0.32); }
.wh__h { display: flex; align-items: center; gap: 9px; }
.wh__n { font-size: 15px; font-weight: 640; letter-spacing: -0.01em; }
.wh__c { font-family: var(--mono); font-size: 9.5px; color: var(--dim); letter-spacing: 0.12em; }
.wh__d { margin-top: 8px; font-size: 11.5px; line-height: 1.55; color: var(--muted); }
.wh__tags { margin-top: 9px; display: flex; flex-wrap: wrap; gap: 5px; }
.wh__tags span {
  font-size: 10px; padding: 3px 7px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--ink-2);
}
.map__label {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--dim);
}
.map__legend {
  position: absolute; left: 0; bottom: 0;
  display: flex; gap: 16px; font-size: 11px; color: var(--dim);
}
.map__legend i { display: inline-block; width: 18px; height: 0; border-top: 1px dashed var(--cyan); vertical-align: middle; margin-right: 6px; }

/* ---------------- 漏斗 ---------------- */

.funnel { display: flex; flex-direction: column; gap: 8px; }
.fn {
  margin: 0 auto;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(90deg, color-mix(in srgb, var(--a) 12%, transparent), rgba(255, 255, 255, 0.02));
  padding: 10px 16px;
  display: flex; align-items: center; gap: 12px;
}
.fn__n { font-family: var(--mono); font-size: 10px; color: var(--a); }
.fn__t { font-size: 13px; font-weight: 600; }
.fn__d { margin-left: auto; font-size: 11.5px; color: var(--dim); }

.score { display: flex; flex-direction: column; gap: 10px; }
.score__row { display: flex; align-items: center; gap: 10px; }
.score__l { width: 120px; font-size: 11.5px; color: var(--muted); text-align: right; flex: none; }
.score__bar { flex: 1; height: 22px; border-radius: 5px; background: rgba(255, 255, 255, 0.05); overflow: hidden; }
.score__in {
  height: 100%;
  border-radius: 5px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--a) 70%, transparent), color-mix(in srgb, var(--a) 24%, transparent));
  display: flex; align-items: center; justify-content: flex-end;
  padding-right: 8px;
  font-family: var(--mono); font-size: 10px; color: var(--ink);
}

/* ---------------- 聊天模拟 ---------------- */

.chatmock {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.chatmock__bar {
  display: flex; align-items: center; gap: 7px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; color: var(--dim);
}
.chatmock__bar i { width: 6px; height: 6px; border-radius: 50%; background: var(--a); box-shadow: 0 0 8px var(--a); }
.chatmock__input {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  font-size: 11.5px;
  color: var(--dim);
}
.chatmock__input span:last-child {
  margin-left: auto;
  width: 26px; height: 26px;
  border-radius: 7px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--a) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--a) 30%, transparent);
  color: var(--a);
}
.bubble {
  max-width: 88%;
  padding: 10px 13px;
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.55;
}
.bubble--user {
  align-self: flex-end;
  background: color-mix(in srgb, var(--a) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--a) 26%, transparent);
  border-bottom-right-radius: 4px;
  color: var(--ink);
}
.bubble--ai {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  color: var(--ink-2);
}
.bubble--ai b { color: var(--ink); }
.toolcard {
  align-self: flex-start;
  width: 88%;
  border-radius: 10px;
  border: 1px solid rgba(94, 232, 181, 0.24);
  background: rgba(94, 232, 181, 0.055);
  padding: 9px 12px;
  display: flex; align-items: center; gap: 10px;
  font-size: 11.5px; color: var(--mint);
}
.toolcard small { margin-left: auto; color: var(--dim); font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.08em; }

/* ---------------- 架构链路（SVG 容器） ---------------- */

.arch { position: relative; flex: 1; display: flex; align-items: center; }
.arch__svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---------------- 其它 ---------------- */

.note {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  font-size: 12px; line-height: 1.6; color: var(--muted);
}
.note b { color: var(--ink-2); }

.quote {
  padding: 9px 12px;
  border-left: 2px solid var(--a);
  border-radius: 0 8px 8px 0;
  background: rgba(255, 255, 255, 0.03);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-2);
}
.quote .dim { font-size: 11px; }
.note--a { border-color: color-mix(in srgb, var(--a) 30%, transparent); background: color-mix(in srgb, var(--a) 5%, transparent); }

.list { display: flex; flex-direction: column; gap: 9px; }
.li { display: flex; gap: 9px; align-items: flex-start; font-size: 12.5px; line-height: 1.55; color: var(--muted); }
.li svg { flex: none; margin-top: 2px; color: var(--a); width: 13px; height: 13px; }
.li b { color: var(--ink-2); font-weight: 600; }

.tagline {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--dim);
  text-transform: uppercase;
}

.big-quote {
  font-size: 34px;
  line-height: 1.32;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--ink);
}
.big-quote em { font-style: normal; color: var(--a); }

.divider-v { width: 1px; background: linear-gradient(180deg, transparent, var(--line-strong), transparent); }
.divider-h { height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); }

.pill-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hl { color: var(--a); }
.mono { font-family: var(--mono); letter-spacing: 0.02em; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.tiny { font-size: 11px; line-height: 1.55; }
.mt8 { margin-top: 8px; } .mt12 { margin-top: 12px; } .mt16 { margin-top: 16px; } .mt22 { margin-top: 22px; }
.w100 { width: 100%; }
.nowrap { white-space: nowrap; }

/* 章节配色 */
.slide[data-accent="violet"] { --a: var(--violet); }
.slide[data-accent="mint"] { --a: var(--mint); }
.slide[data-accent="amber"] { --a: var(--amber); }
.slide[data-accent="rose"] { --a: var(--rose); }
.slide[data-accent="cyan"] { --a: var(--cyan); }

/* ---------------- 顶部/底部 UI ---------------- */

.deck-chrome {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.42);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s ease;
}
.deck-chrome.is-visible { opacity: 1; }
.deck-chrome__brand { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.6); }
.deck-chrome__mark {
  width: 14px; height: 14px; border-radius: 4px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px rgba(69, 224, 255, 0.5);
}
.deck-chrome__sec { color: rgba(69, 224, 255, 0.75); }
.deck-chrome__right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.deck-chrome__btn {
  pointer-events: auto;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.65);
  border-radius: 7px;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.deck-chrome__btn:hover { color: #fff; border-color: rgba(69, 224, 255, 0.5); background: rgba(69, 224, 255, 0.1); }
.deck-chrome__btn svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.6; }

.pager {
  position: fixed;
  right: 22px; bottom: 18px;
  z-index: 30;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.5);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.pager.is-visible { opacity: 1; }
.pager b { color: var(--cyan); font-weight: 500; }

.bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
  z-index: 30;
}
.bar__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px rgba(69, 224, 255, 0.6);
  transition: width 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hint {
  position: fixed;
  left: 22px; bottom: 16px;
  z-index: 30;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.28);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.hint.is-visible { opacity: 1; }

/* ---------------- 索引 ---------------- */

.overview {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(3, 6, 13, 0.92);
  backdrop-filter: blur(14px);
  display: none;
  flex-direction: column;
  padding: 54px 64px;
}
.overview.is-open { display: flex; }
.overview__head {
  display: flex; align-items: baseline; gap: 16px;
  margin-bottom: 26px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: var(--dim);
}
.overview__head b { font-family: var(--font); font-size: 22px; letter-spacing: -0.01em; color: var(--ink); font-weight: 600; }
.overview__grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 10px;
  overflow: auto;
}
.ov-item {
  text-align: left;
  padding: 13px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  color: var(--ink-2);
  cursor: pointer;
  display: flex; flex-direction: column; gap: 7px;
  transition: all 0.2s ease;
  min-height: 86px;
}
.ov-item:hover { border-color: rgba(69, 224, 255, 0.45); background: rgba(69, 224, 255, 0.07); transform: translateY(-2px); }
.ov-item.is-current { border-color: rgba(69, 224, 255, 0.7); background: rgba(69, 224, 255, 0.1); }
.ov-item__n { font-family: var(--mono); font-size: 9.5px; color: var(--dim); letter-spacing: 0.12em; }
.ov-item__t { font-size: 12.5px; line-height: 1.4; font-weight: 550; }
.ov-item--cover { grid-column: span 2; }

/* ---------------- 帮助 ---------------- */

.help {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  place-items: center;
  background: rgba(3, 6, 13, 0.86);
  backdrop-filter: blur(12px);
}
.help.is-open { display: grid; }
.help__box {
  width: 520px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #0a1220;
  padding: 28px 30px;
  box-shadow: var(--shadow);
}
.help__box h3 { margin: 0 0 18px; font-size: 18px; font-weight: 600; }
.help__row { display: flex; align-items: center; gap: 14px; padding: 8px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.05); font-size: 13px; color: var(--muted); }
.help__row:last-child { border-bottom: none; }
kbd {
  font-family: var(--mono); font-size: 10.5px;
  padding: 4px 8px; border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink-2);
  min-width: 74px; text-align: center;
}

/* ---------------- 打印 ---------------- */

@page { size: 1600px 900px; margin: 0; }

@media print {
  html, body { overflow: visible; background: #fff; height: auto; }
  #viewport { position: static; display: block; background: none; }
  #stage {
    transform: none !important;
    width: var(--stage-w);
    height: auto;
    overflow: visible;
    box-shadow: none;
  }
  .deck-chrome, .pager, .bar, .hint, .overview, .help { display: none !important; }
  .slide {
    position: relative;
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    width: var(--stage-w);
    height: var(--stage-h);
    overflow: hidden;
    break-after: page;
    page-break-after: always;
  }
  .cover__ring, .orb { display: none; }
  .slide:last-child { break-after: auto; page-break-after: auto; }
  .rv { opacity: 1 !important; transform: none !important; }
  .orb { animation: none; }
  .map .route { animation: none; }
  #stage::after { display: none; }
}

/* ---------- 导出模式（逐页截图 / PPT 用，无外壳、无缩放） ---------- */
html.export,
html.export body {
  width: var(--stage-w);
  height: var(--stage-h);
  overflow: hidden;
  background: var(--bg);
}
html.export #viewport {
  position: static;
  display: block;
  background: none;
}
html.export #stage {
  transform: none !important;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}
html.export .deck-chrome,
html.export .pager,
html.export .hint,
html.export .bar,
html.export .overview,
html.export .help { display: none !important; }
html.export .rv { opacity: 1 !important; transform: none !important; transition: none !important; }
html.export .orb,
html.export .map .route { animation: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}