:root {
  --bg: #05070a;
  --panel: rgba(16, 20, 25, 0.92);
  --panel-strong: rgba(23, 29, 35, 0.98);
  --line: rgba(255, 255, 255, 0.12);
  --line-soft: rgba(255, 255, 255, 0.07);
  --text: #f3f5f1;
  --muted: #aeb6b4;
  --quiet: #707b7a;
  --yellow: #f4d44d;
  --red: #ff405f;
  --teal: #2ef2d0;
  --green: #94d46f;
  --radius: 8px;
  --font: "Microsoft YaHei UI", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(135deg, rgba(46, 242, 208, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(255, 64, 95, 0.12), transparent 30%),
    var(--bg);
  background-size: 36px 36px, 36px 36px, auto, auto, auto;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 38px;
  border: 1px solid rgba(244, 212, 77, 0.42);
  border-radius: var(--radius);
  background: rgba(244, 212, 77, 0.08);
  color: var(--text);
  cursor: pointer;
}

button:hover {
  border-color: rgba(46, 242, 208, 0.74);
  background: rgba(46, 242, 208, 0.08);
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(4, 6, 9, 0.78);
  color: var(--text);
  outline: none;
  padding: 0 14px;
}

input:focus,
select:focus {
  border-color: rgba(46, 242, 208, 0.72);
  box-shadow: 0 0 0 3px rgba(46, 242, 208, 0.08);
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

ul {
  margin: 0;
  padding-left: 18px;
}

li {
  margin: 8px 0;
  color: var(--muted);
  line-height: 1.65;
}

.guide-shell {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  min-height: 100vh;
}

.guide-rail {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: rgba(6, 8, 12, 0.88);
  backdrop-filter: blur(18px);
  overflow-y: auto;
}

.rail-brand {
  padding: 8px 8px 22px;
  border-bottom: 1px solid var(--line-soft);
}

.rail-brand p,
.kicker,
#detail-section {
  color: var(--teal);
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
}

.rail-brand h1 {
  margin-top: 8px;
  font-size: 28px;
}

.rail-nav {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.rail-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 0 12px;
  text-align: left;
}

.rail-link.is-active {
  border-color: rgba(255, 64, 95, 0.86);
  background: rgba(255, 64, 95, 0.14);
}

.rail-link strong {
  color: var(--yellow);
  font-size: 13px;
}

.guide-main {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 32px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 20px;
  align-items: end;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(120deg, rgba(244, 212, 77, 0.12), transparent 42%),
    linear-gradient(300deg, rgba(46, 242, 208, 0.1), transparent 48%),
    var(--panel);
}

.hero h2 {
  margin-top: 8px;
  font-size: clamp(36px, 6vw, 76px);
  line-height: 0.98;
}

.subtitle {
  max-width: 720px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.hero-panel {
  display: grid;
  gap: 10px;
}

.hero-panel span,
.result-line,
.quick-start article,
.guide-card,
.detail-dialog {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.hero-panel span {
  display: block;
  padding: 14px;
  color: var(--yellow);
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px 48px;
  gap: 12px;
  margin-top: 18px;
}

.search-box {
  position: relative;
}

.search-box span {
  position: absolute;
  left: 14px;
  top: 50%;
  color: var(--quiet);
  transform: translateY(-50%);
}

.search-box input {
  padding-left: 58px;
}

.quick-start {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.quick-start article {
  padding: 18px;
}

.quick-start h3 {
  color: var(--yellow);
  font-size: 18px;
}

.quick-start p {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.75;
}

.result-line {
  margin-top: 18px;
  padding: 13px 16px;
  color: var(--green);
}

.guide-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.collection-divider {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius);
  background: rgba(7, 10, 14, 0.84);
}

.collection-divider span {
  color: var(--text);
  font-size: 22px;
  font-weight: 800;
}

.collection-divider strong {
  color: var(--muted);
  font-size: 13px;
}

.collection-divider.is-fun {
  border-left-color: #b65cff;
}

.collection-divider.is-dlc2 {
  border-left-color: var(--teal);
}

.guide-card {
  padding: 20px;
}

.guide-card.is-fun {
  border-color: rgba(182, 92, 255, 0.28);
}

.guide-card.is-dlc2 {
  border-color: rgba(46, 242, 208, 0.22);
}

.card-media,
.detail-media {
  margin: 0 0 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 64, 95, 0.58);
  border-radius: var(--radius);
  background: rgba(4, 6, 9, 0.76);
}

.card-media img,
.detail-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.card-media figcaption {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

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

.card-topline span {
  color: var(--teal);
  font-size: 13px;
}

.card-topline strong {
  margin-right: auto;
  border: 1px solid rgba(244, 212, 77, 0.34);
  border-radius: var(--radius);
  padding: 4px 8px;
  color: var(--yellow);
  background: rgba(244, 212, 77, 0.07);
  font-size: 12px;
}

.card-topline button {
  min-height: 34px;
  padding: 0 12px;
}

.guide-card h3 {
  margin-top: 10px;
  font-size: 26px;
}

.guide-card p,
.detail-summary {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.75;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag-row span {
  border: 1px solid rgba(46, 242, 208, 0.28);
  border-radius: var(--radius);
  padding: 5px 9px;
  color: var(--teal);
  background: rgba(46, 242, 208, 0.06);
  font-size: 13px;
}

.card-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.card-columns.single-column {
  grid-template-columns: 1fr;
}

.card-columns h4,
.detail-grid h3 {
  color: var(--yellow);
}

.empty-state {
  padding: 36px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

.detail-dialog {
  width: min(880px, calc(100vw - 32px));
  color: var(--text);
  padding: 26px;
}

.detail-dialog::backdrop {
  background: rgba(0, 0, 0, 0.72);
}

.dialog-close {
  position: absolute;
  right: 18px;
  top: 18px;
  width: 38px;
  padding: 0;
}

.dialog-head {
  padding-right: 52px;
}

.dialog-head h2 {
  margin-top: 8px;
  font-size: 34px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 22px;
}

.nav-toggle {
  display: none;
}

@media (max-width: 860px) {
  .guide-shell {
    display: block;
  }

  .nav-toggle {
    position: fixed;
    left: 12px;
    top: 12px;
    z-index: 30;
    display: block;
  }

  .guide-rail {
    position: fixed;
    z-index: 20;
    left: 0;
    top: 0;
    width: min(310px, 86vw);
    transform: translateX(-104%);
    transition: transform 180ms ease;
  }

  .guide-rail.is-open {
    transform: translateX(0);
  }

  .guide-main {
    padding: 68px 14px 20px;
  }

  .hero,
  .toolbar,
  .quick-start,
  .card-columns,
  .detail-grid {
    grid-template-columns: 1fr;
  }
}