:root {
  --bg: #f6eee4;
  --surface: #ffffff;
  --surface-strong: #fbf6ef;
  --text: #3d2a1b;
  --muted: #7b6858;
  --line: rgba(88, 59, 36, 0.12);
  --brand: #9b6b3f;
  --brand-dark: #6f4526;
  --accent: #d6a26a;
  --shadow: 0 18px 50px rgba(86, 58, 34, 0.14);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1200px, calc(100vw - 32px));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(155, 107, 63, 0.16), transparent 30%),
    linear-gradient(180deg, #fbf6ef 0%, #f1e6d8 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.topbar {
  background: #5f3b22;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.topbar-inner,
.header-main,
.footer-main,
.footer-links,
.hero-grid,
.page-grid,
.detail-grid {
  width: var(--container);
  margin: 0 auto;
}

.topbar-inner {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar-links {
  display: flex;
  gap: 18px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(251, 246, 239, 0.9);
  border-bottom: 1px solid var(--line);
}

.header-main {
  display: grid;
  grid-template-columns: 220px 1fr 300px;
  gap: 24px;
  align-items: center;
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 210px;
  height: auto;
  object-fit: contain;
  display: block;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 24px rgba(111, 69, 38, 0.24);
}

.brand-copy strong {
  display: block;
  font-size: 20px;
}

.brand-copy span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a {
  padding: 11px 16px;
  border-radius: 999px;
  color: var(--muted);
  transition: 0.2s ease;
}

.nav a:hover,
.nav a.is-active {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 10px 24px rgba(111, 69, 38, 0.24);
}

.search-form {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 8px 8px 16px;
  box-shadow: var(--shadow);
}

.search-form input {
  border: 0;
  background: transparent;
  outline: 0;
  flex: 1;
  min-width: 0;
}

.btn,
.search-form button,
.hero-cta,
.card-link,
.primary-action {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  box-shadow: 0 14px 28px rgba(111, 69, 38, 0.22);
}

.btn:hover,
.search-form button:hover,
.hero-cta:hover,
.card-link:hover,
.primary-action:hover {
  transform: translateY(-1px);
  opacity: 0.96;
}

.page-shell {
  padding: 28px 0 72px;
}

.hero {
  width: var(--container);
  margin: 8px auto 28px;
  background: linear-gradient(135deg, rgba(74, 46, 28, 0.96), rgba(155, 107, 63, 0.9));
  color: #fff;
  border-radius: 34px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  padding: 34px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-kicker {
  display: inline-flex;
  align-self: flex-start;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 13px;
}

.hero-copy h1,
.page-hero h1,
.empty-state h2 {
  margin: 16px 0 12px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.04;
}

.hero-copy p,
.page-hero p,
.section-head p,
.meta-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-product-logo {
  width: 96px;
  height: 96px;
  border-radius: 24px;
  object-fit: cover;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.18);
  margin-bottom: 18px;
}

.ghost-link {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.banner-frame {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.banner-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-overlay {
  position: absolute;
  inset: auto 18px 18px;
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(12, 34, 25, 0.08), rgba(12, 34, 25, 0.82));
}

.banner-overlay strong {
  display: block;
  font-size: 22px;
  margin-bottom: 8px;
}

.banner-controls {
  position: absolute;
  top: 18px;
  right: 18px;
  display: flex;
  gap: 10px;
}

.banner-control {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
}

.banner-dots {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: flex;
  gap: 8px;
}

.banner-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  border: 0;
  background: rgba(255, 255, 255, 0.34);
  cursor: pointer;
}

.banner-dot.is-active {
  width: 28px;
  background: #fff;
}

.section {
  width: var(--container);
  margin: 0 auto 28px;
}

.section-card,
.page-panel,
.detail-card,
.empty-state,
.form-panel,
.article-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.section-head,
.page-hero {
  padding: 28px 30px 0;
}

.section-head h2,
.page-panel h2,
.detail-main h2,
.article-panel h1 {
  margin: 0 0 10px;
  font-size: 30px;
}

.home-featured {
  padding: 0 30px 30px;
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 28px;
}

.feature-media img,
.detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
}

.feature-info {
  display: flex;
  flex-direction: column;
}

.chip {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(155, 107, 63, 0.12);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 700;
}

.meta-list {
  margin: 18px 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  display: grid;
  gap: 10px;
}

.thumb-grid,
.card-grid,
.footer-links-list,
.gallery-grid,
.stats-grid {
  display: grid;
  gap: 18px;
}

.thumb-grid {
  grid-template-columns: repeat(4, 1fr);
  margin-top: 28px;
}

.thumb-card,
.game-card,
.article-link,
.stat-card {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}

.thumb-card button {
  width: 100%;
  border: 0;
  background: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
}

.thumb-card img,
.game-card img {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
}

.thumb-card span,
.game-card-body,
.article-link {
  display: block;
  padding: 14px 16px 16px;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0 30px 30px;
}

.game-card {
  display: flex;
  flex-direction: column;
}

.game-card-body h3,
.article-link strong {
  margin: 0 0 10px;
  font-size: 20px;
}

.game-card-body p,
.article-link p,
.article-body,
.detail-copy {
  color: var(--muted);
  line-height: 1.75;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 14px;
}

.page-grid,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 26px;
}

.help-layout {
  width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.help-sidebar {
  position: sticky;
  top: 116px;
}

.help-sidebar-card,
.help-content {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.help-sidebar-card {
  padding: 24px;
}

.help-sidebar-card h3 {
  margin: 0 0 16px;
  font-size: 22px;
}

.help-nav {
  display: grid;
  gap: 10px;
}

.help-nav a {
  display: block;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--surface-strong);
  color: var(--muted);
}

.help-nav a.is-active {
  background: rgba(155, 107, 63, 0.12);
  color: var(--brand-dark);
  font-weight: 700;
}

.help-hero {
  padding: 30px 32px 12px;
}

.help-hero h1 {
  margin: 16px 0 10px;
  font-size: clamp(32px, 4vw, 46px);
}

.help-hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.help-article {
  padding: 12px 32px 32px;
}

.help-section + .help-section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.help-section h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.help-section p,
.help-section li {
  color: var(--muted);
  line-height: 1.85;
}

.help-section ul {
  margin: 0;
  padding-left: 20px;
}

.page-panel,
.detail-card,
.article-panel,
.form-panel {
  padding: 30px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 24px;
}

.filter-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--muted);
}

.filter-chip.is-active {
  background: rgba(155, 107, 63, 0.12);
  color: var(--brand-dark);
  border-color: rgba(155, 107, 63, 0.2);
}

.sidebar-stack {
  display: grid;
  gap: 20px;
}

.sidebar-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.sidebar-card h3 {
  margin-top: 0;
}

.sidebar-card ul {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.detail-grid {
  align-items: start;
}

.detail-main {
  display: grid;
  gap: 28px;
}

.detail-hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 28px;
}

.detail-copy .primary-action {
  display: inline-flex;
  margin-top: 24px;
}

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

.gallery-grid img {
  border-radius: 20px;
  height: 220px;
  width: 100%;
  object-fit: cover;
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.stat-card {
  padding: 20px;
}

.stat-card strong {
  display: block;
  font-size: 28px;
  margin-bottom: 8px;
}

.article-panel h1 {
  font-size: clamp(34px, 4vw, 48px);
  margin-bottom: 16px;
}

.article-body p {
  margin: 0 0 18px;
}

.form-panel form {
  display: grid;
  gap: 18px;
}

.form-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 26px;
  align-items: start;
}

.flow-side {
  display: grid;
  gap: 20px;
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row label {
  font-weight: 700;
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  padding: 14px 16px;
  background: var(--surface-strong);
  outline: none;
}

.form-row textarea {
  min-height: 150px;
  resize: vertical;
}

.form-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
}

.form-feedback {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: 16px;
  font-size: 14px;
}

.form-feedback.is-error {
  background: rgba(186, 51, 51, 0.08);
  border: 1px solid rgba(186, 51, 51, 0.16);
  color: #9d2f2f;
}

.form-feedback.is-success {
  background: rgba(155, 107, 63, 0.1);
  border: 1px solid rgba(155, 107, 63, 0.2);
  color: var(--brand-dark);
}

.flow-steps {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 12px;
  line-height: 1.7;
}

.history-head {
  margin-top: 34px;
}

.submission-list {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.submission-card,
.empty-inline {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
}

.submission-card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  align-items: center;
}

.submission-card-top strong {
  font-size: 18px;
}

.submission-card-top span {
  font-size: 13px;
  color: var(--brand-dark);
  background: rgba(155, 107, 63, 0.12);
  padding: 6px 10px;
  border-radius: 999px;
}

.submission-card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.submission-meta {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.footer {
  padding: 0 0 40px;
}

.footer-main {
  background: linear-gradient(180deg, #6a4428 0%, #54331d 100%);
  color: rgba(255, 255, 255, 0.82);
  border-radius: 30px;
  padding: 26px 30px 30px;
  box-shadow: var(--shadow);
}

.footer-links {
  margin-bottom: 20px;
}

.footer-links h3 {
  margin: 0 0 14px;
  color: #fff;
}

.footer-links-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.article-link {
  background: rgba(255, 248, 240, 0.08);
  border: 1px solid rgba(255, 244, 232, 0.12);
}

.article-link strong,
.footer-main h4 {
  color: #fff;
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.empty-state {
  padding: 36px;
  text-align: center;
}

.tag-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(155, 107, 63, 0.12);
  color: var(--brand-dark);
  font-size: 13px;
}

@media (max-width: 1080px) {
  .header-main,
  .hero-grid,
  .home-featured,
  .form-flow,
  .help-layout,
  .page-grid,
  .detail-grid,
  .detail-hero {
    grid-template-columns: 1fr;
  }

  .header-main {
    padding: 18px 0;
  }

  .card-grid,
  .footer-links-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 720px) {
  .topbar-inner,
  .header-main,
  .hero-grid,
  .help-layout,
  .page-panel,
  .detail-card,
  .article-panel,
  .form-panel,
  .footer-main,
  .home-featured,
  .card-grid,
  .section-head,
  .page-hero {
    width: calc(100vw - 24px);
  }

  .header-main,
  .topbar-inner {
    width: calc(100vw - 24px);
  }

  .page-shell {
    padding-top: 18px;
  }

  .hero-grid,
  .page-panel,
  .detail-card,
  .article-panel,
  .form-panel,
  .home-featured,
  .card-grid {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    border-radius: 26px;
  }

  .hero-visual {
    min-height: 300px;
  }

  .card-grid,
  .footer-links-list,
  .gallery-grid,
  .form-inline {
    grid-template-columns: 1fr;
  }

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

  .nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
  }

  .nav a {
    white-space: nowrap;
  }
}