:root {
  --ink: #13213a;
  --muted: #667085;
  --faint: #8a94a8;
  --line: #d8e0ec;
  --line-strong: #c5d0df;
  --bg: #eef3f8;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --blue: #2859c7;
  --violet: #6f52c8;
  --green: #118568;
  --amber: #b67816;
  --orange: #d66c16;
  --slate: #40506a;
  --shadow: 0 18px 42px rgba(33, 50, 86, 0.10);
  --shadow-soft: 0 8px 24px rgba(33, 50, 86, 0.07);
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: 86px;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background:
    linear-gradient(90deg, rgba(19, 33, 58, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(19, 33, 58, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, #f7f9fc 0, var(--bg) 310px, #eef2f7 100%);
  background-size: 40px 40px, 40px 40px, auto;
  font-variant-numeric: tabular-nums;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

body.modal-open {
  overflow: hidden;
}

@keyframes rb-shimmer {
  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

@keyframes rb-list-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes rb-flow-line {
  from {
    transform: translate3d(-20%, 0, 0) rotate(-12deg);
    opacity: 0;
  }

  18%,
  72% {
    opacity: 0.55;
  }

  to {
    transform: translate3d(95%, 0, 0) rotate(-12deg);
    opacity: 0;
  }
}

@keyframes rb-cube-idle {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotateX(0deg) rotateY(0deg);
  }

  50% {
    transform: translate3d(0, -7px, 12px) rotateX(13deg) rotateY(-11deg);
  }
}

@keyframes rb-cube-ripple {
  0%,
  100% {
    box-shadow: none;
  }

  38% {
    box-shadow: 0 0 18px rgba(255, 255, 255, 0.7), 0 0 32px color-mix(in srgb, var(--cube-face) 85%, transparent);
  }
}

.hidden {
  display: none !important;
}

.rb-shiny-text {
  display: inline-block;
  color: transparent;
  background: linear-gradient(105deg, var(--ink) 0%, #244d94 28%, var(--green) 58%, var(--slate) 86%);
  background-size: 260% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  animation: rb-shimmer 8s ease-in-out infinite;
}

.rb-animated-list-item {
  animation: rb-list-in 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: calc(var(--rb-index, 0) * 60ms);
}

.rb-spotlight-card {
  --rb-x: 50%;
  --rb-y: 0%;
  --rb-tilt-x: 0deg;
  --rb-tilt-y: 0deg;
  transform-style: preserve-3d;
  will-change: transform;
}

.rb-spotlight-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(280px circle at var(--rb-x) var(--rb-y), color-mix(in srgb, var(--track) 22%, transparent), transparent 58%),
    linear-gradient(135deg, color-mix(in srgb, var(--track) 11%, transparent), transparent 48%);
  transition: opacity 180ms ease;
}

.rb-spotlight-card:hover::after,
.rb-spotlight-card:focus-visible::after {
  opacity: 1;
}

.rb-spotlight-card > * {
  position: relative;
  z-index: 1;
}

.rb-cubes-field {
  position: absolute;
  left: clamp(860px, 51vw, 990px);
  top: 4px;
  z-index: 0;
  width: min(12.5vw, 244px);
  aspect-ratio: 1;
  opacity: 0.74;
  transform: translate3d(0, 0, 0);
  pointer-events: auto;
  contain: layout paint style;
  will-change: transform;
}

.rb-cubes-field::after {
  content: "";
  position: absolute;
  inset: -11%;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, transparent 0%, transparent 46%, rgba(247, 250, 255, 0.46) 66%, rgba(247, 250, 255, 0.92) 88%),
    linear-gradient(90deg, rgba(247, 250, 255, 0.84), transparent 20%, transparent 80%, rgba(247, 250, 255, 0.84));
}

.rb-cubes-field .default-animation {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
}

.rb-cubes-field .default-animation--scene {
  display: grid;
  width: 100%;
  height: 100%;
  column-gap: 5%;
  row-gap: 5%;
  perspective: 99999999px;
  grid-auto-rows: 1fr;
}

.rb-cubes-field .cube {
  position: relative;
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  transform-style: preserve-3d;
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

.rb-cubes-field .cube::before {
  content: "";
  position: absolute;
  top: -36px;
  right: -36px;
  bottom: -36px;
  left: -36px;
}

.rb-cubes-field .cube-face {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.38), rgba(238, 243, 248, 0.08) 42%, transparent 72%),
    var(--cube-face-bg);
  border: var(--cube-face-border);
  box-shadow: var(--cube-face-shadow);
  opacity: 1;
  backface-visibility: hidden;
}

.rb-cubes-field .cube-face--top {
  transform: translateY(-50%) rotateX(90deg);
}

.rb-cubes-field .cube-face--bottom {
  transform: translateY(50%) rotateX(-90deg);
}

.rb-cubes-field .cube-face--left {
  transform: translateX(-50%) rotateY(-90deg);
}

.rb-cubes-field .cube-face--right {
  transform: translateX(50%) rotateY(90deg);
}

.rb-cubes-field .cube-face--back,
.rb-cubes-field .cube-face--front {
  transform: rotateY(-90deg) translateX(50%) rotateY(90deg);
}

.login-screen {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 56px;
  align-items: center;
  padding: 68px 9vw;
  background:
    linear-gradient(90deg, rgba(19, 33, 58, 0.92), rgba(28, 48, 83, 0.86) 44%, transparent 44%),
    linear-gradient(180deg, #f7f9fc, #edf2f8);
}

.login-copy {
  max-width: 760px;
  color: #fff;
}

.brand-mark {
  width: 42px;
  height: 38px;
  display: inline-block;
  background:
    linear-gradient(145deg, #2859c7, #5ea4d8) left top / 52% 52% no-repeat,
    linear-gradient(145deg, #6f52c8, #a9b7e8) right top / 52% 52% no-repeat,
    linear-gradient(145deg, #118568, #5bbd9f) left bottom / 52% 52% no-repeat,
    linear-gradient(145deg, #d66c16, #f1b068) right bottom / 52% 52% no-repeat;
  clip-path: polygon(20% 0, 80% 0, 100% 30%, 100% 70%, 80% 100%, 20% 100%, 0 70%, 0 30%);
  box-shadow: 0 10px 22px rgba(14, 32, 66, 0.18);
}

.eyebrow {
  margin: 18px 0 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.login-copy .eyebrow {
  color: #9fd2ff;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 4.8vw, 60px);
  line-height: 1.05;
  text-wrap: balance;
}

h2,
h3 {
  text-wrap: balance;
}

.login-copy p:not(.eyebrow),
.desc,
.lead {
  color: var(--muted);
  line-height: 1.75;
}

.login-copy p:not(.eyebrow) {
  max-width: 610px;
  color: rgba(255, 255, 255, 0.76);
}

.login-card,
.panel,
.summary-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.login-card {
  padding: 28px;
  border-top: 4px solid var(--blue);
}

.login-card h2,
.panel h2 {
  margin: 0 0 14px;
  font-size: 20px;
}

label {
  display: grid;
  gap: 7px;
  margin-top: 0;
  color: #344054;
  font-size: 14px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c8d3e3;
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

input,
select {
  height: 42px;
  padding: 0 12px;
}

textarea {
  min-height: 92px;
  padding: 10px 12px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  outline: none;
  box-shadow: 0 0 0 3px rgba(40, 89, 199, 0.12);
}

input:disabled {
  color: #667085;
  background: #f3f6fb;
}

.primary,
.secondary {
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0 18px;
  font-weight: 900;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.primary {
  color: #fff;
  background: linear-gradient(180deg, #2f67df, var(--blue));
  box-shadow: 0 12px 22px rgba(40, 89, 199, 0.20);
}

.secondary {
  color: var(--blue);
  background: #f3f7ff;
  border-color: #b8c7ef;
}

.compact {
  min-height: 36px;
  padding-inline: 14px;
}

.primary:hover,
.secondary:hover,
.demo-accounts button:hover,
.nav a:hover {
  transform: translateY(-1px);
}

.primary:active,
.secondary:active,
.demo-accounts button:active {
  transform: translateY(0);
}

.block {
  width: 100%;
  margin-top: 18px;
}

.form-result {
  min-height: 20px;
  margin: 10px 0 0;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.demo-accounts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 18px;
}

.demo-accounts button {
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--slate);
  background: #fff;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.demo-accounts button:hover {
  color: var(--blue);
  border-color: #aac0ef;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 40px;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(216, 224, 236, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
  color: var(--ink);
  text-decoration: none;
  font-size: 19px;
  font-weight: 950;
}

.brand .brand-mark {
  width: 34px;
  height: 30px;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.nav a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--slate);
  text-decoration: none;
  font-size: 14px;
  font-weight: 900;
  transition: transform 180ms ease, color 180ms ease, background 180ms ease;
}

.nav a:hover {
  color: var(--blue);
  background: #eef4ff;
}

.user-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

#roleBadge {
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--green);
  background: #e7f7f1;
  border: 1px solid #ccebdd;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 34px;
  align-items: end;
  padding: 34px 48px 26px;
  background:
    linear-gradient(90deg, rgba(40, 89, 199, 0.10) 1px, transparent 1px),
    linear-gradient(180deg, rgba(17, 133, 104, 0.09) 1px, transparent 1px),
    linear-gradient(135deg, #f7faff, #ffffff 58%, #f4f7fb);
  background-size: 28px 28px, 28px 28px, auto;
  border-bottom: 1px solid var(--line);
}

.hero > :not(.rb-flow-lines):not(.rb-cubes-field) {
  position: relative;
  z-index: 1;
}

.hero-copy {
  pointer-events: none;
}

.rb-flow-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.78;
  overflow: hidden;
}

.rb-flow-lines span {
  position: absolute;
  left: -28%;
  top: calc(8% + var(--rb-index) * 14%);
  width: 38%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(40, 89, 199, 0.28), rgba(17, 133, 104, 0.26), transparent);
  filter: blur(0.2px);
  animation: rb-flow-line 8s linear infinite;
  animation-delay: calc(var(--rb-index) * -1.2s);
}

.hero h1 {
  font-size: clamp(32px, 3.2vw, 42px);
}

.lead {
  max-width: 760px;
  margin: 12px 0 4px;
  color: #30435f;
  font-size: 18px;
  font-weight: 900;
}

.desc {
  max-width: 860px;
  margin: 0;
}

.summary-card {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  overflow: hidden;
  background: var(--line);
}

.summary-card div {
  min-height: 82px;
  padding: 15px;
  background:
    linear-gradient(180deg, #fff, #f8fafc);
}

.summary-card span,
.summary-card b {
  display: block;
}

.summary-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.summary-card b {
  margin-top: 8px;
  font-size: 15px;
}

.shell {
  display: grid;
  gap: 20px;
  width: min(1380px, calc(100% - 64px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.panel {
  position: relative;
  overflow: hidden;
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--orange), var(--violet));
  opacity: 0.72;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 0;
}

.section-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}

.section-head p,
.workspace-card p {
  max-width: 760px;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.timeline-item {
  position: relative;
  min-height: 104px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff, #f8fafc);
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 0;
  height: 3px;
  border-radius: 4px 4px 0 0;
  background: #cfd8e8;
}

.timeline-item.done::after {
  background: var(--green);
}

.timeline-item.active::after {
  background: var(--blue);
}

.timeline-item b,
.timeline-item span,
.timeline-item small {
  display: block;
}

.timeline-item b {
  font-size: 15px;
}

.timeline-item span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.timeline-item small {
  margin-top: 10px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 800;
}

.timeline-item.done {
  border-color: #bfdfd2;
}

.timeline-item.active {
  border-color: #a9bff1;
  background: linear-gradient(180deg, #f5f8ff, #fff);
}

.role-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  gap: 20px;
}

.workspace-card.wide {
  grid-column: 1 / -1;
}

.stack-form {
  display: grid;
  gap: 14px;
}

.unified-form,
.topic-form,
.review-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 16px;
}

.unified-form .full-line,
.topic-form .full-line,
.review-form .full-line {
  grid-column: 1 / -1;
}

.review-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.55fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.review-context {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #f8fbff, #fff);
}

.review-context b,
.review-context span {
  display: block;
}

.review-context span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.review-form {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.upload-field {
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.upload-title {
  color: #344054;
  font-size: 14px;
  font-weight: 900;
}

.upload-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.template-download {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  text-decoration: none;
}

.template-download:hover {
  text-decoration: underline;
}

.file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
}

.upload-dropzone {
  display: grid;
  place-items: center;
  min-height: 96px;
  padding: 18px;
  border: 1.5px dashed #9fb3da;
  border-radius: 10px;
  color: var(--blue);
  background:
    linear-gradient(90deg, rgba(40, 89, 199, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(40, 89, 199, 0.04) 1px, transparent 1px),
    #f8fbff;
  background-size: 18px 18px;
  text-align: center;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.upload-dropzone:hover,
.upload-dropzone:focus-visible,
.upload-dropzone.is-dragging {
  border-color: var(--blue);
  background-color: #eef5ff;
  outline: none;
  transform: translateY(-1px);
}

.upload-dropzone.has-file {
  border-color: var(--green);
  color: var(--green);
  background-color: #edf9f4;
}

.upload-dropzone strong,
.upload-dropzone span {
  display: block;
}

.upload-dropzone span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.field-hint {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.55;
}

.compiled-list {
  display: grid;
  gap: 14px;
}

.compiled-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #fff, #fbfcff);
}

.compiled-card header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.compiled-card header b,
.compiled-card header span {
  display: block;
}

.compiled-card header span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.compiled-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.compiled-section {
  min-height: 112px;
  padding: 12px;
  border: 1px solid #dde6f3;
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  background: #f7faff;
}

.compiled-section b {
  display: block;
  margin-bottom: 8px;
}

.compiled-section p {
  margin: 0;
  color: #4b556b;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.attachment-download {
  min-height: 34px;
  padding-inline: 12px;
}

.track-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.track-summary-card {
  --track: var(--slate);
  --track-soft: #f3f5f8;
  min-height: 96px;
  padding: 15px;
  border: 1px solid color-mix(in srgb, var(--track) 30%, var(--line));
  border-radius: 10px;
  background: linear-gradient(180deg, var(--track-soft), #fff 76%);
}

.track-summary-card.track-content {
  --track: var(--blue);
  --track-soft: #eaf1ff;
}

.track-summary-card.track-product {
  --track: var(--violet);
  --track-soft: #f0ebff;
}

.track-summary-card.track-operation {
  --track: var(--green);
  --track-soft: #e8f8f0;
}

.track-summary-card.track-tech {
  --track: var(--orange);
  --track-soft: #fff0e2;
}

.track-summary-card span,
.track-summary-card b,
.track-summary-card small {
  display: block;
}

.track-summary-card span {
  color: var(--track);
  font-size: 13px;
  font-weight: 950;
}

.track-summary-card b {
  margin-top: 10px;
  font-size: 22px;
}

.track-summary-card small {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.topic-list {
  display: block;
}

.topic-collection {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.topic-parent-list {
  display: grid;
  gap: 10px;
}

.topic-parent {
  --track: var(--slate);
  --track-soft: #f3f5f8;
  min-height: 68px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--track) 24%, var(--line));
  border-left: 4px solid var(--track);
  border-radius: 10px;
  color: color-mix(in srgb, var(--track) 38%, var(--ink));
  background: linear-gradient(180deg, var(--track-soft), #fff);
  text-align: left;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.topic-parent:hover,
.topic-parent.active {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--track) 50%, var(--line));
  box-shadow: 0 14px 24px color-mix(in srgb, var(--track) 12%, transparent);
}

.topic-parent span,
.topic-parent b {
  display: block;
}

.topic-parent span {
  font-size: 14px;
  font-weight: 950;
}

.topic-parent b {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.topic-parent.track-content {
  --track: var(--blue);
  --track-soft: #eaf1ff;
}

.topic-parent.track-product {
  --track: var(--violet);
  --track-soft: #f0ebff;
}

.topic-parent.track-operation {
  --track: var(--green);
  --track-soft: #e8f8f0;
}

.topic-parent.track-tech {
  --track: var(--orange);
  --track-soft: #fff0e2;
}

.topic-child-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(15, 23, 42, 0.42);
  backdrop-filter: blur(10px);
}

.modal-panel {
  width: min(820px, 100%);
  max-height: min(760px, calc(100dvh - 56px));
  overflow: auto;
  border: 1px solid rgba(216, 224, 236, 0.92);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.24);
}

.topic-modal {
  padding: 22px;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.modal-head h2 {
  margin: 0;
  font-size: 22px;
}

.modal-head p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.icon-button {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--slate);
  background: #f8fafc;
  font-size: 20px;
  line-height: 1;
}

.icon-button:hover {
  color: var(--blue);
  border-color: #aac0ef;
  background: #eef4ff;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.topic-card,
.rule-card,
.award-card,
.ops-grid article,
.asset-list article {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.topic-card {
  --track: var(--slate);
  --track-soft: #f3f5f8;
  position: relative;
  min-height: 220px;
  overflow: hidden;
  padding: 17px;
  border-color: color-mix(in srgb, var(--track) 36%, var(--line));
  background:
    linear-gradient(180deg, var(--track-soft), #fff 68%),
    #fff;
  box-shadow: 0 16px 28px color-mix(in srgb, var(--track) 12%, transparent);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.topic-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--track) 52%, var(--line));
  box-shadow: 0 20px 34px color-mix(in srgb, var(--track) 18%, transparent);
}

.topic-card.rb-spotlight-card:hover {
  transform: perspective(900px) rotateX(var(--rb-tilt-x)) rotateY(var(--rb-tilt-y)) translateY(-4px);
}

.selectable-topic {
  cursor: pointer;
}

.selectable-topic:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--track) 34%, transparent);
  outline-offset: 3px;
}

.topic-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--track);
}

.topic-card h3 {
  min-height: 48px;
  margin: 12px 0 12px;
  color: color-mix(in srgb, var(--track) 34%, var(--ink));
  font-size: 17px;
  line-height: 1.42;
}

.topic-card p {
  margin: 8px 0 0;
  color: #4b556b;
  font-size: 13px;
  line-height: 1.55;
}

.topic-card p b {
  margin-right: 8px;
  color: var(--ink);
}

.topic-action-hint {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 10px;
  border-radius: 8px;
  color: #fff;
  background: var(--track);
  font-size: 12px;
  font-weight: 900;
}

.tag {
  display: inline-block;
  margin-right: 6px;
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--track);
  background: var(--track-soft);
  font-size: 12px;
  font-weight: 900;
}

.topic-card .tag + .tag {
  color: #31506f;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid color-mix(in srgb, var(--track) 24%, #dbe4f2);
}

.topic-card.track-content {
  --track: var(--blue);
  --track-soft: #eaf1ff;
}

.topic-card.track-product {
  --track: var(--violet);
  --track-soft: #f0ebff;
}

.topic-card.track-operation {
  --track: var(--green);
  --track-soft: #e8f8f0;
}

.topic-card.track-tech {
  --track: var(--orange);
  --track-soft: #fff0e2;
}

.topic-card.track-default {
  --track: var(--slate);
  --track-soft: #f3f5f8;
}

.rule-grid,
.award-grid,
.ops-grid {
  display: grid;
  gap: 14px;
}

.rule-grid {
  grid-template-columns: repeat(5, 1fr);
}

.award-grid,
.ops-grid {
  grid-template-columns: repeat(4, 1fr);
}

.rule-card,
.award-card,
.ops-grid article,
.asset-list article {
  min-height: 96px;
  padding: 16px;
  box-shadow: 0 10px 24px rgba(31, 47, 80, 0.05);
}

.rule-card strong,
.award-card strong {
  display: block;
  color: var(--blue);
  font-size: 25px;
}

.rule-card b,
.award-card b,
.ops-grid b,
.asset-list b {
  display: block;
  margin: 7px 0;
}

.rule-card span,
.award-card span,
.ops-grid span,
.asset-list span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.asset-list {
  display: grid;
  gap: 10px;
}

.table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.table-head,
.table-row {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.8fr;
  gap: 12px;
  padding: 11px 12px;
}

.table-head {
  color: var(--muted);
  background: #f3f6fb;
  font-size: 13px;
  font-weight: 900;
}

.table-row {
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.table-row:hover {
  background: #fbfdff;
}

.empty {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .topic-list,
  .rule-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: repeat(3, 1fr);
  }

  .compiled-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .login-screen,
  .hero,
  .role-grid,
  .unified-form,
  .topic-form,
  .review-form,
  .review-layout,
  .topic-collection,
  .topic-child-list,
  .compiled-grid,
  .track-summary,
  .topic-list,
  .rule-grid,
  .award-grid,
  .ops-grid {
    grid-template-columns: 1fr;
  }

  .login-screen {
    padding: 34px 18px;
    background:
      linear-gradient(180deg, rgba(19, 33, 58, 0.94), rgba(28, 48, 83, 0.86) 42%, transparent 42%),
      linear-gradient(180deg, #f7f9fc, #edf2f8);
  }

  h1,
  .hero h1 {
    font-size: 32px;
  }

  .topbar {
    height: auto;
    flex-wrap: wrap;
    padding: 12px 18px;
  }

  .brand {
    min-width: 0;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .shell {
    width: calc(100% - 36px);
    padding-top: 18px;
  }

  .hero {
    padding-left: 18px;
    padding-right: 18px;
  }

  .rb-cubes-field {
    display: none;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .compiled-card header {
    align-items: stretch;
    flex-direction: column;
  }
}