/* ============================================================
   赌钱娱乐网 · 共享站点样式 /assets/site.css
   基调：高原纸色编辑部 × 湖蓝数据集市
   结构：reset → tokens → 基础排版 → 通用工具 → 刊头 → 页脚
        → 通用组件 → 动效 → 响应式 → 减弱动效
   ============================================================ */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
input, textarea, select { font: inherit; color: inherit; }

/* ---------- 2. Tokens ---------- */
:root {
  --paper: #F3ECDD;
  --paper-2: #E4D8C2;
  --ink: #15191B;
  --lake: #176B84;
  --lake-deep: #0B3E4D;
  --ochre: #9C5128;
  --gold: #B58A2A;
  --forest: #163D35;
  --mist: #52666B;

  --line: rgba(21, 25, 27, 0.14);
  --line-strong: rgba(21, 25, 27, 0.34);
  --line-light: rgba(243, 236, 221, 0.2);

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
  --ease: cubic-bezier(0.22, 0.7, 0.28, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(21, 25, 27, 0.032) 0 1px,
    transparent 1px 96px
  );
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(36px, 5vw, 72px); }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(18px, 2.2vw, 24px); }
h4 { font-size: 17px; }

p { line-height: 1.8; }
strong { font-weight: 700; }
em { font-style: normal; color: var(--ochre); }
small { font-size: 12.5px; }

::selection { background: var(--lake); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: 3px;
}

#main-content,
[id] { scroll-margin-top: clamp(96px, 15vh, 148px); }

/* ---------- 4. 通用工具 ---------- */
.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 999;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  padding: 10px 18px;
  border: 1px solid var(--gold);
  transition: transform 0.25s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 32px);
}
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-12 { grid-column: span 12; }

.section { padding-block: clamp(40px, 6vw, 88px); }
.section--tight { padding-block: clamp(24px, 3.5vw, 48px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  margin-bottom: clamp(20px, 3vw, 36px);
  border-bottom: 1px solid var(--ink);
}
.section-title { color: var(--ink); }
.section-note {
  max-width: 34ch;
  font-size: 13px;
  color: var(--mist);
}
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ochre);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.rule { height: 1px; border: 0; background: var(--line); }
.rule--gold { height: 2px; background: var(--gold); }
.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.prose {
  max-width: 70ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}
.prose p + p { margin-top: 1.1em; }
.prose h2 { margin-top: 1.6em; margin-bottom: 0.5em; font-size: clamp(22px, 2.6vw, 30px); }
.prose h3 { margin-top: 1.5em; margin-bottom: 0.4em; }
.prose ul, .prose ol { margin-top: 0.9em; padding-left: 1.2em; }
.prose ul li { list-style: square; }
.prose ol li { list-style: decimal; }
.prose li + li { margin-top: 0.4em; }

/* ---------- 5. 刊头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  transition: box-shadow 0.35s var(--ease);
}
.site-header[data-scrolled] { box-shadow: 0 8px 24px rgba(21, 25, 27, 0.12); }

/* 5.1 顶部索引带 */
.header-indexline {
  background: var(--forest);
  color: var(--paper);
}
.indexline-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
  padding-block: 5px;
}
.indexline-note,
.indexline-quick {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.6;
}
.indexline-note { color: rgba(243, 236, 221, 0.6); }
.indexline-quick { display: flex; flex-wrap: wrap; gap: 18px; }
.indexline-quick a {
  color: rgba(243, 236, 221, 0.82);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.indexline-quick a:hover,
.indexline-quick a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

/* 5.2 刊头 */
.masthead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding-block: clamp(10px, 1.6vw, 20px);
  transition: padding 0.35s var(--ease);
}
.masthead-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 54px);
  line-height: 1;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--ink);
  transition: font-size 0.35s var(--ease), color 0.25s var(--ease);
}
.masthead-brand:hover { color: var(--lake); }
.masthead-issue,
.masthead-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
  transition: opacity 0.25s var(--ease), visibility 0.25s var(--ease);
}
.masthead-issue { justify-self: start; }
.masthead-meta { justify-self: end; }

.site-header[data-scrolled] .masthead { padding-block: 7px; }
.site-header[data-scrolled] .masthead-brand { font-size: clamp(18px, 2.4vw, 26px); }
.site-header[data-scrolled] .masthead-issue,
.site-header[data-scrolled] .masthead-meta { opacity: 0; visibility: hidden; }

/* 5.3 栏目带 */
.nav-band {
  position: relative;
  border-top: 1px solid var(--line);
}
.nav-band-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  min-height: 52px;
}
.primary-nav { justify-self: center; }
.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(12px, 2.4vw, 34px);
}
.nav-list a {
  position: relative;
  display: inline-block;
  padding-block: 14px;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--ink);
  transition: color 0.25s var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s var(--ease);
}
.nav-list a:hover,
.nav-list a:focus-visible { color: var(--lake); }
.nav-list a:hover::after,
.nav-list a:focus-visible::after { transform: scaleX(1); }
.nav-list a[aria-current="page"] {
  color: var(--lake);
  font-weight: 700;
}
.nav-list a[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--ochre);
}

.nav-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--lake);
  background: var(--lake);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.nav-cta::after { content: "→"; font-size: 12px; }
.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--paper);
}

/* 5.4 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  justify-self: start;
  padding: 10px 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink);
}
.nav-toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 20px;
  height: 16px;
}
.nav-toggle-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:first-child {
  transform: translateY(3.5px) rotate(45deg);
  background: var(--lake);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
  background: var(--lake);
}

/* 5.5 阅读进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(21, 25, 27, 0.08);
  pointer-events: none;
}
.scroll-progress [data-progress-bar] {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--lake) 0%, var(--lake-deep) 55%, var(--gold) 100%);
  transition: transform 0.12s linear;
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 96px);
  background: var(--forest);
  color: var(--paper);
  position: relative;
}
.footer-belt {
  height: 6px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--gold) 0 22px,
    transparent 22px 44px
  );
  opacity: 0.85;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.72fr) minmax(0, 0.72fr) minmax(0, 1.35fr);
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(36px, 5vw, 64px);
}
.footer-brand { min-width: 0; }
.footer-wordmark {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.08em;
  color: var(--paper);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--gold);
}
.footer-wordmark:hover { color: var(--gold); }
.footer-note {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(243, 236, 221, 0.72);
}
.footer-motif {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: rgba(181, 138, 42, 0.9);
}

.footer-col { min-width: 0; }
.footer-heading {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.24em;
  color: var(--gold);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-light);
}
.footer-links li + li { margin-top: 2px; }
.footer-links a {
  display: inline-block;
  padding-block: 6px;
  font-size: 14px;
  color: rgba(243, 236, 221, 0.85);
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

.footer-rows { margin: 0; }
.footer-row {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr);
  gap: 10px;
  padding-block: 6px;
  border-bottom: 1px solid rgba(243, 236, 221, 0.12);
}
.footer-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: rgba(243, 236, 221, 0.5);
  padding-top: 2px;
}
.footer-value {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(243, 236, 221, 0.92);
  overflow-wrap: anywhere;
}

.footer-legal {
  border-top: 1px solid var(--line-light);
  background: rgba(11, 62, 77, 0.22);
}
.footer-legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 18px;
}
.footer-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: rgba(243, 236, 221, 0.6);
}
.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.footer-legal-links a {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(243, 236, 221, 0.78);
  border-bottom: 1px solid transparent;
}
.footer-legal-links a:hover,
.footer-legal-links a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 7. 通用组件 ---------- */
/* 7.1 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 22px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.12em;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn:hover,
.btn:focus-visible {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary {
  background: var(--lake);
  border-color: var(--lake);
  color: var(--paper);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--lake-deep);
  border-color: var(--lake-deep);
  color: var(--paper);
}
.btn--ochre {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--paper);
}
.btn--ochre:hover,
.btn--ochre:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: rgba(243, 236, 221, 0.6);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--lake);
  background: rgba(23, 107, 132, 0.08);
  color: var(--lake);
}
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lake);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
}
.link-more::after { content: "→"; }
.link-more:hover { color: var(--ochre); }

/* 7.2 面包屑 */
.crumbs { padding-block: 14px; }
.crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.crumbs-list li { display: inline-flex; align-items: center; gap: 10px; }
.crumbs-list li + li::before { content: "/"; color: var(--gold); }
.crumbs-list a:hover,
.crumbs-list a:focus-visible { color: var(--lake); }

/* 7.3 卡片与标签 */
.card {
  background: var(--paper-2);
  border: 1px solid var(--line-strong);
  padding: clamp(16px, 2vw, 24px);
}
.card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
}
.card-meta {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  background: rgba(243, 236, 221, 0.7);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
.tag--lake { border-color: var(--lake); color: var(--lake); }
.tag--ochre { border-color: var(--ochre); color: var(--ochre); }

/* 7.4 旁注 */
.note {
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* 7.5 目录索引 */
.index-list { border-top: 1px solid var(--ink); }
.index-item {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding-block: 12px;
  border-bottom: 1px solid var(--line);
}
.index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ochre);
}
.index-title { font-size: 15px; line-height: 1.6; }
.index-title a:hover,
.index-title a:focus-visible { color: var(--lake); }
.index-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  white-space: nowrap;
}

/* 7.6 图片容器（页面阶段放置占位图） */
.figure {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--lake-deep);
  aspect-ratio: 16 / 10;
}
.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure--wide { aspect-ratio: 21 / 9; }
.figure--tall { aspect-ratio: 3 / 4; }
.figure--square { aspect-ratio: 1 / 1; }
.figure--grid {
  background-image:
    linear-gradient(to right, rgba(243, 236, 221, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(243, 236, 221, 0.16) 1px, transparent 1px),
    linear-gradient(140deg, var(--lake-deep) 0%, var(--forest) 100%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
}
.figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(11, 62, 77, 0.92), rgba(11, 62, 77, 0));
  color: rgba(243, 236, 221, 0.9);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

/* 7.7 主题筛选 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.filter-btn {
  position: relative;
  padding: 8px 14px;
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.filter-btn::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  background: var(--lake);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}
.filter-btn:hover,
.filter-btn:focus-visible { color: var(--ink); }
.filter-btn[aria-pressed="true"] {
  color: var(--lake);
  border-color: var(--line-strong);
  background: rgba(23, 107, 132, 0.08);
}
.filter-btn[aria-pressed="true"]::after { transform: scaleX(1); }
.filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
[data-filter-item].is-filtered { display: none; }

/* ---------- 8. 动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 9. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr) minmax(0, 1.2fr);
  }
  .footer-brand { grid-column: span 3; }
}

@media (max-width: 900px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9 { grid-column: span 6; }
  .col-12 { grid-column: span 6; }

  .masthead {
    grid-template-columns: 1fr;
    justify-items: center;
    padding-block: 10px;
  }
  .masthead-issue, .masthead-meta { display: none; }
  .masthead-brand { font-size: clamp(24px, 6vw, 36px); }
  .site-header[data-scrolled] .masthead-brand { font-size: clamp(18px, 4.6vw, 24px); }

  .nav-band-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
  }
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding-inline: var(--gutter);
    background: var(--paper-2);
    border-bottom: 1px solid var(--ink);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height 0.4s var(--ease), visibility 0.4s var(--ease);
  }
  .primary-nav[data-open] {
    max-height: min(72vh, 560px);
    overflow-y: auto;
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 6px;
    border-top: 1px solid var(--line);
  }
  .nav-list a {
    display: block;
    padding: 15px 4px;
    border-bottom: 1px solid var(--line);
    letter-spacing: 0.12em;
  }
  .nav-list a::after { display: none; }
  .nav-list a[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--ochre);
    padding-left: 12px;
  }
  .nav-cta { font-size: 11.5px; padding: 8px 13px; }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }
  .footer-brand { grid-column: span 2; }
  .footer-contact { grid-column: span 2; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .indexline-quick { display: none; }
  .indexline-inner { min-height: 30px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-brand, .footer-contact { grid-column: span 1; }
  .index-item { grid-template-columns: 2.2em minmax(0, 1fr); }
  .index-meta { grid-column: 2; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .filter-count { margin-left: 0; width: 100%; }
  .footer-legal-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- 10. 减弱动效 ---------- */
@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-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress [data-progress-bar] { transition: none; }
}