:root {
  --color-surface: #eeefef;
  --color-surface-alt: #e5e6e6;
  --color-surface-deep: #d9dbda;
  --color-ink: #3b4544;
  --color-ink-soft: #5c6a6a;
  --color-ink-muted: #788787;
  --color-line: #ced0d0;
  --color-primary: #31827f;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #d4e0df;
  --color-accent: #d02f6b;
  --color-accent-ink: #ffffff;
  --color-highlight: #e9ccd7;
  --color-focus: #cb1f5f;
  --font-heading: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 12.9px;
  --text-sm: 15.5px;
  --text-base: 17px;
  --text-lg: 20.4px;
  --text-xl: 24.5px;
  --text-2xl: 29.4px;
  --text-3xl: 35.3px;
  --text-4xl: 42.3px;
  --weight-heading: 640;
  --weight-body: 400;
  --leading-body: 1.86;
  --leading-heading: 1.16;
  --tracking-heading: 0.003em;
  --radius-sm: 2px;
  --radius-md: 3px;
  --radius-lg: 4px;
  --radius-pill: 4px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 1px 0 rgba(59, 69, 68, 0.12);
  --shadow-2: 0 2px 0 rgba(59, 69, 68, 0.18);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1200px;
  --measure: 74ch;
  --gutter: 16px;
  --section-y: 105px;
  --section-y-lg: 147px;
}

/* =========================================================
   财神捕鱼 · 中国区官网内容站
   共享样式表 / assets / site.css
   ========================================================= */

html {
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Source Han Serif SC", serif;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

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

body {
  margin: 0;
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  font-weight: var(--weight-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin: 0 0 var(--space-2); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-primary); }

ul, ol { margin: 0; padding: 0; list-style: none; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

::selection {
  background: color-mix(in srgb, var(--color-primary) 26%, transparent);
  color: var(--color-ink);
}

:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: fixed;
  top: var(--space-1);
  left: var(--space-1);
  z-index: 300;
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  transform: translateY(-220%);
  transition: transform 0.18s linear;
}
.skip-link:focus {
  transform: translateY(0);
  color: var(--color-primary-ink);
}

/* ---------------- 布局工具 ---------------- */

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.stack { display: grid; gap: var(--space-1); }

.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--alt { background: var(--color-surface-alt); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  margin-bottom: var(--space-4);
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.title-caps {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  letter-spacing: 0.14em;
}

.prose {
  max-width: var(--measure);
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.prose p { margin-bottom: var(--space-2); }
.prose a { color: var(--color-primary); border-bottom: var(--border-thin) solid var(--color-primary-soft); }

.data {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
  text-align: right;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: transparent;
}
.tag--accent {
  color: var(--color-accent);
  border-color: color-mix(in srgb, var(--color-accent) 55%, transparent);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}
.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: "/"; color: var(--color-line); }
.breadcrumb a { color: var(--color-ink-soft); }
.breadcrumb a:hover { color: var(--color-primary); }

/* ---------------- 错位与肌理 ---------------- */

.offset-rule {
  position: relative;
  height: var(--border-thick);
  margin-block: var(--space-3);
  background: var(--color-line);
}
.offset-rule::after {
  content: "";
  position: absolute;
  top: 0;
  left: var(--space-6);
  width: 34%;
  height: var(--border-thick);
  background: var(--color-primary);
}

.weave {
  background-color: var(--color-surface-alt);
  background-image: repeating-linear-gradient(
    -45deg,
    color-mix(in srgb, var(--color-highlight) 52%, transparent) 0 2px,
    transparent 2px 12px
  );
}

.vertical-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  line-height: 1;
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
}
.vertical-note--block {
  display: block;
  height: 76px;
  margin-bottom: var(--space-3);
}

/* ---------------- 图片容器（页面阶段放占位图） ---------------- */

.media {
  position: relative;
  display: block;
  overflow: hidden;
  min-height: 210px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  isolation: isolate;
}
.media--tall { min-height: 360px; }
.media > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--color-ink) 8%, transparent),
    color-mix(in srgb, var(--color-ink) 76%, transparent)
  );
}
.media::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -12%;
  z-index: 2;
  width: 46%;
  aspect-ratio: 1 / 1;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 34%, transparent);
  border-radius: 50%;
  pointer-events: none;
}
.media-content {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 3;
  padding: var(--space-3);
  color: var(--color-primary-ink);
  max-width: var(--measure);
}
.media-content h2,
.media-content h3,
.media-content p { color: var(--color-primary-ink); margin-bottom: var(--space-1); }

/* ---------------- 条目行（替代卡片堆叠） ---------------- */

.index-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: var(--space-2) var(--space-3);
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.index-row:hover { background: color-mix(in srgb, var(--color-primary-soft) 42%, transparent); }
.index-row > .index-no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.14em;
}
.index-row > .index-body { min-width: 0; }
.index-row > .index-body h3 { font-size: var(--text-lg); margin-bottom: 4px; }
.index-row > .index-body p { margin: 0; color: var(--color-ink-soft); font-size: var(--text-sm); }

/* ---------------- 按钮 ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 14px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid transparent;
  transition: background-color 0.18s linear, color 0.18s linear, border-color 0.18s linear;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: color-mix(in srgb, var(--color-primary) 82%, var(--color-ink));
  color: var(--color-primary-ink);
}
.btn-ghost {
  background: transparent;
  color: var(--color-ink-soft);
  border-color: var(--color-line);
}
.btn-ghost:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-accent {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}
.btn-accent:hover { color: var(--color-accent-ink); background: color-mix(in srgb, var(--color-accent) 84%, var(--color-ink)); }

/* ---------------- 筛选与折叠面板 ---------------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}
.filter-btn {
  padding: 6px 12px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  background: transparent;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  transition: background-color 0.18s linear, border-color 0.18s linear, color 0.18s linear;
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn[aria-pressed="true"] {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
[data-filtered-out] { display: none !important; }

.panel { border-bottom: var(--border-thin) solid var(--color-line); }
.panel-trigger {
  display: flex;
  width: 100%;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  text-align: left;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}
.panel-trigger:hover { color: var(--color-primary); }
.panel-state {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}
.panel-body {
  display: none;
  padding-bottom: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}
.panel[data-open] .panel-body { display: block; }
.panel[data-open] .panel-trigger { color: var(--color-primary); }

/* ---------------- 侧栏锚点索引 ---------------- */

.toc { position: sticky; top: 104px; }
.toc a {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-1);
  padding: 6px 0;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-left: var(--border-thin) solid var(--color-line);
  padding-left: var(--space-2);
}
.toc a .toc-no { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-ink-muted); }
.toc a[data-current] {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  border-left-width: var(--border-thick);
}
.toc a[data-current] .toc-no { color: var(--color-primary); }

/* =========================================================
   头部
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: color-mix(in srgb, var(--color-surface) 60%, #ffffff);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.header-inner {
  position: relative;
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
  min-height: 70px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.brand:hover { color: inherit; }
.brand-mark {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
  flex: none;
}
.brand-mark svg { width: 100%; height: 100%; }
.brand-text { display: block; }
.brand-name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.1;
  letter-spacing: 0.14em;
  color: var(--color-ink);
}
.brand-sub {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.primary-nav { margin-inline: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.nav-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 2px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thick) solid transparent;
  transition: color 0.18s linear, border-color 0.18s linear;
}
.nav-list a:hover { color: var(--color-ink); }
.nav-idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0;
}
.nav-list a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--weight-heading);
}
.nav-list a[aria-current="page"] .nav-idx { color: var(--color-primary); }

.header-aside {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
}
.header-scope {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  max-width: 15ch;
  line-height: 1.5;
  text-align: right;
  padding-right: var(--space-2);
  border-right: var(--border-thin) solid var(--color-line);
}
.header-aside .vertical-note { max-height: 54px; }
.header-actions { display: flex; align-items: center; gap: var(--space-1); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}
.nav-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
.nav-toggle-lines {
  position: relative;
  display: block;
  width: 16px;
  height: var(--border-thick);
  background: currentColor;
}
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: var(--border-thick);
  background: currentColor;
}
.nav-toggle-lines::before { top: -5px; }
.nav-toggle-lines::after { top: 5px; }

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: var(--border-thick);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  pointer-events: none;
}
.scroll-progress-bar {
  display: block;
  height: 100%;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left center;
}

/* =========================================================
   页脚（阶梯式）
   ========================================================= */

.site-footer {
  margin-top: var(--section-y-lg);
  font-family: var(--font-heading);
  color: var(--color-ink);
}

.footer-inner {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.footer-index {
  background: var(--color-surface-deep);
  border-top: var(--border-thin) solid var(--color-line);
  padding-block: var(--space-8) var(--space-6);
}
.footer-index .footer-inner {
  display: grid;
  grid-template-columns: 3fr 9fr;
  gap: var(--space-6);
}

.footer-brand-name {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
  line-height: 1.2;
}
.footer-brand-note {
  margin: 0;
  max-width: 30ch;
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
}
.footer-col-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
}
.footer-col-title a {
  color: var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-primary);
  padding-bottom: 3px;
}
.footer-col ul { display: grid; gap: 8px; }
.footer-col li a {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  letter-spacing: 0.02em;
}
.footer-col li a:hover { color: var(--color-primary); }
.footer-col-text {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  word-break: break-all;
}

.footer-legal {
  background: color-mix(in srgb, var(--color-surface-deep) 84%, var(--color-ink));
  border-top: var(--border-thin) solid var(--color-line);
  padding-block: var(--space-3) var(--space-4);
}
.footer-inner--legal {
  display: grid;
  gap: var(--space-1);
  padding-left: var(--space-6);
}
.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-sm);
}
.legal-links a { color: var(--color-ink-soft); }
.legal-links a:hover { color: var(--color-primary); }
.legal-meta,
.legal-contact {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

/* =========================================================
   响应式
   ========================================================= */

@media (max-width: 1180px) {
  .header-scope { max-width: 12ch; }
  .footer-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4) var(--space-3); }
}

@media (max-width: 1023px) {
  html { scroll-padding-top: 84px; }

  .header-scope,
  .header-aside .vertical-note { display: none; }

  .nav-toggle { display: inline-flex; }
  .primary-nav { margin-inline: 0; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: var(--space-2) var(--gutter) var(--space-3);
    background: var(--color-surface);
    border-bottom: var(--border-thin) solid var(--color-line);
    box-shadow: var(--shadow-2);
  }
  .primary-nav[data-open] { display: block; }
  .nav-list li { border-bottom: var(--border-thin) solid var(--color-line); }
  .nav-list a {
    width: 100%;
    padding: 12px 0;
    font-size: var(--text-base);
    border-bottom: 0;
  }
  .nav-list a[aria-current="page"] {
    border-bottom: 0;
    padding-left: 12px;
    box-shadow: inset var(--border-thick) 0 0 var(--color-primary);
  }

  .footer-index .footer-inner { grid-template-columns: 1fr; gap: var(--space-4); }
  .vertical-note--block { height: 60px; }
  .footer-inner--legal { padding-left: 0; }
  .toc { position: static; }
}

@media (max-width: 767px) {
  .header-inner { min-height: 62px; gap: var(--space-2); }
  .brand-sub { display: none; }
  .brand-mark { width: 26px; height: 26px; }
  .brand-name { font-size: var(--text-lg); letter-spacing: 0.1em; }
  .header-actions .btn-ghost { display: none; }

  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-index { padding-block: var(--space-6) var(--space-4); }
  .footer-brand-note { max-width: none; }

  .section { padding-block: var(--space-8); }
  .section--lg { padding-block: var(--space-8); }
  .site-footer { margin-top: var(--space-8); }

  .index-row { grid-template-columns: 1fr; gap: 6px; }
  .index-row > .data { text-align: left; }

  .footer-inner--legal { gap: var(--space-2); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .scroll-progress-bar { transition: none !important; }
}