/* ==========================================================================
   抢庄牛牛 · /assets/site.css
   牌桌夜宴共享外壳：墨黑绒布 + 暖金描边 + 朱红状态锚点
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  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, svg, video { display: block; max-width: 100%; height: auto; }

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

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

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

p, li { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }

/* ---------- 2. 变量 ---------- */
:root {
  color-scheme: dark;

  --ink: #070B09;
  --felt: #0E2A21;
  --felt-2: #173D30;
  --paper: #F5EFE2;
  --paper-dim: #D7CEBC;
  --gold: #C6A15B;
  --gold-hi: #E3C98D;
  --red: #D33A2C;
  --moss: #7F9186;
  --jade: #2E5C4A;

  --line-gold: rgba(198, 161, 91, 0.32);
  --line-jade: rgba(46, 92, 74, 0.75);
  --line-paper: rgba(245, 239, 226, 0.1);

  --font-display: "Songti SC", "Noto Serif SC", "Source Han Serif SC",
    "Source Han Serif CN", "STZhongsong", "SimSun", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular,
    Menlo, Consolas, "Courier New", monospace;

  --radius-pill: 999px;
  --radius-lg: 20px;
  --radius-md: 14px;

  --shell: 1280px;
  --header-gap: 96px;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    radial-gradient(110% 70% at 82% -8%, rgba(198, 161, 91, 0.13), transparent 62%),
    radial-gradient(90% 65% at 6% 0%, rgba(46, 92, 74, 0.34), transparent 58%),
    linear-gradient(180deg, #0A1A15 0%, #070B09 58%, #060A08 100%);
  background-attachment: fixed;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

::selection {
  background: rgba(198, 161, 91, 0.35);
  color: #fff;
}

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

#main-content { scroll-margin-top: var(--header-gap, 96px); }

/* ---------- 4. 通用容器与节奏 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: clamp(48px, 6vw, 88px); }
.section--tight { padding-block: clamp(32px, 4vw, 56px); }

.stack {
  display: grid;
  gap: var(--gap, 16px);
}

.divider {
  height: 1px;
  border: 0;
  margin: 48px 0;
  background: linear-gradient(90deg, transparent, rgba(198, 161, 91, 0.45), transparent);
}

/* ---------- 5. 网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap, 24px);
  align-items: start;
}

.grid > .cell {
  grid-column: span var(--span, 12);
  min-width: 0;
}

/* ---------- 6. 小标 / 坐标 / 标签 ---------- */
.eyebrow,
.coord {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--gold);
  flex: 0 0 auto;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(198, 161, 91, 0.45);
  background: rgba(198, 161, 91, 0.1);
  color: var(--gold-hi);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

.tag--red {
  border-color: rgba(211, 58, 44, 0.62);
  background: rgba(211, 58, 44, 0.16);
  color: #F3ADA3;
}

.tag--moss {
  border-color: rgba(127, 145, 134, 0.5);
  background: rgba(127, 145, 134, 0.1);
  color: var(--moss);
}

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: transform 0.18s ease, background-color 0.18s ease,
    color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.btn--gold {
  background: linear-gradient(180deg, var(--gold-hi), var(--gold));
  border-color: rgba(227, 201, 141, 0.7);
  color: #14100A;
  box-shadow: 0 10px 24px -16px rgba(198, 161, 91, 0.95);
}

.btn--gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px -16px rgba(198, 161, 91, 1);
}

.btn--quiet {
  background: rgba(245, 239, 226, 0.05);
  border-color: rgba(198, 161, 91, 0.38);
  color: var(--paper);
}

.btn--quiet:hover {
  background: rgba(198, 161, 91, 0.16);
  border-color: var(--gold);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line-jade);
  color: var(--paper-dim);
}

.btn--ghost:hover {
  color: var(--paper);
  border-color: var(--gold);
}

.btn--block { width: 100%; }

/* ---------- 8. 卡片面板 ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 2.2vw, 28px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(198, 161, 91, 0.22);
  background:
    radial-gradient(120% 90% at 15% 0%, rgba(23, 61, 48, 0.72), transparent 70%),
    linear-gradient(180deg, rgba(14, 42, 33, 0.9), rgba(8, 18, 14, 0.94));
  box-shadow: 0 26px 60px -44px #000;
  overflow: hidden;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(245, 239, 226, 0.06);
  border-radius: calc(var(--radius-lg) - 6px);
  pointer-events: none;
}

.panel__label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.panel--paper {
  background: linear-gradient(180deg, #F5EFE2, #E7DECB);
  border-color: rgba(20, 17, 10, 0.22);
  color: #12211B;
}

.panel--paper::after { border-color: rgba(18, 33, 27, 0.14); }
.panel--paper .panel__label { color: #7A6435; }
.panel--paper h2,
.panel--paper h3 { color: #0F1F19; }

/* ---------- 9. 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  border: 1px solid rgba(198, 161, 91, 0.28);
  background:
    radial-gradient(120% 110% at 25% 0%, #1B4636 0%, #0E2A21 46%, #070B09 100%);
}

.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px rgba(227, 201, 141, 0.12),
    inset 0 -70px 90px -70px rgba(0, 0, 0, 0.92);
  pointer-events: none;
}

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
}

.media-frame__caption {
  position: absolute;
  right: 14px;
  bottom: 12px;
  left: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.9);
}

/* ---------- 10. 章节头 / 面包屑 / 长文 ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line-jade);
}

.section-head h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.breadcrumbs { margin-bottom: 24px; }

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: rgba(198, 161, 91, 0.5);
}

.breadcrumbs a { color: var(--paper-dim); }
.breadcrumbs a:hover { color: var(--gold-hi); }
.breadcrumbs [aria-current="page"] { color: var(--gold); }

.prose {
  max-width: 72ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  margin-top: 2.1em;
  font-size: clamp(23px, 2.6vw, 31px);
}

.prose h3 {
  margin-top: 1.7em;
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.prose strong { color: var(--paper); font-weight: 700; }

.prose a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose ul { display: grid; gap: 0.6em; }

.prose ul > li {
  position: relative;
  padding-left: 20px;
}

.prose ul > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--gold);
  transform: rotate(45deg);
}

.prose blockquote {
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-display);
  color: var(--paper);
}

.prose code {
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid rgba(198, 161, 91, 0.25);
  background: rgba(198, 161, 91, 0.12);
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--gold-hi);
}

/* ---------- 11. 图例 ---------- */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.legend-dot--gold { background: var(--gold); box-shadow: 0 0 0 3px rgba(198, 161, 91, 0.18); }
.legend-dot--red { background: var(--red); box-shadow: 0 0 0 3px rgba(211, 58, 44, 0.2); }
.legend-dot--moss { background: var(--moss); box-shadow: 0 0 0 3px rgba(127, 145, 134, 0.18); }

/* ---------- 12. 显现动效 ---------- */
.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.62s ease,
    transform 0.62s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.has-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   13. 头部 —— 悬浮胶囊浮岛
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 14px 24px 0;
  transition: padding 0.28s ease;
}

.site-header[data-scrolled="true"] { padding-top: 6px; }

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 1100;
  pointer-events: none;
  background: rgba(198, 161, 91, 0.14);
}

.scroll-meter__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--jade), var(--gold) 58%, var(--red));
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1200;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: var(--paper);
  color: #0B1F19;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 14px 34px -14px #000;
  transition: top 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible { top: 14px; }

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 9px 12px 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(198, 161, 91, 0.34);
  background:
    radial-gradient(90% 160% at 12% 0%, rgba(46, 92, 74, 0.55), transparent 62%),
    linear-gradient(180deg, rgba(18, 44, 34, 0.94), rgba(8, 18, 14, 0.96));
  box-shadow:
    0 22px 48px -30px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(227, 201, 141, 0.16);
  backdrop-filter: blur(14px);
  transition: padding 0.28s ease, box-shadow 0.28s ease, border-radius 0.28s ease;
}

.site-header[data-scrolled="true"] .header-shell {
  padding: 5px 8px 5px 12px;
  box-shadow:
    0 18px 38px -28px rgba(0, 0, 0, 0.98),
    inset 0 1px 0 rgba(227, 201, 141, 0.12);
}

/* 品牌浮岛 */
.brand-island {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 6px 4px 0;
  border-radius: var(--radius-md);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 12px;
  border: 1px solid rgba(198, 161, 91, 0.55);
  background: radial-gradient(120% 120% at 30% 15%, #1E4C3A, #0A1B15 72%);
  box-shadow:
    inset 0 1px 0 rgba(227, 201, 141, 0.24),
    0 8px 20px -14px #000;
}

.brand-mark__glyph {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold-hi);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.brand-sub {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--moss);
}

/* 移动按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  min-width: 44px;
  margin-left: auto;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(198, 161, 91, 0.38);
  background: rgba(245, 239, 226, 0.05);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
  flex: 0 0 auto;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--gold-hi);
  transition: top 0.24s ease, transform 0.24s ease;
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { top: 10px; }

.site-header[data-open="true"] .nav-toggle__bars::before {
  top: 5px;
  transform: rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bars::after {
  top: 5px;
  transform: rotate(-45deg);
}

/* 导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-item--split::before {
  content: "";
  width: 1px;
  height: 16px;
  margin: 0 8px;
  background: rgba(46, 92, 74, 0.9);
  flex: 0 0 auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper-dim);
  transition: color 0.18s ease, background-color 0.18s ease;
}

.nav-link__index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--moss);
  transition: color 0.18s ease;
}

.nav-link:hover {
  color: var(--paper);
  background: rgba(198, 161, 91, 0.12);
}

.nav-link:hover .nav-link__index { color: var(--gold); }

.nav-link[aria-current="page"] {
  color: #10100A;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold));
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.18);
}

.nav-link[aria-current="page"] .nav-link__index { color: rgba(16, 16, 10, 0.7); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.nav-action { font-size: 13px; }

/* ==========================================================================
   14. 页脚 —— 节目单三层
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 110px);
  border-top: 1px solid rgba(198, 161, 91, 0.3);
  background: linear-gradient(180deg, #0B2219 0%, #08130F 56%, #060A08 100%);
  color: var(--paper-dim);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 48% at 10% 0%, rgba(198, 161, 91, 0.16), transparent 72%),
    radial-gradient(48% 42% at 92% 8%, rgba(211, 58, 44, 0.09), transparent 72%);
}

.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.65;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(245, 239, 226, 0.028) 0 1px,
    transparent 1px 6px
  );
}

.footer-shell {
  position: relative;
  z-index: 1;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 64px) 24px 28px;
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line-jade);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.footer-brand__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.footer-brand__sub {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--moss);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.7fr;
  gap: clamp(24px, 3vw, 48px);
  padding: clamp(32px, 4vw, 48px) 0;
}

.footer-col { min-width: 0; }

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--paper);
}

.footer-col__index {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  border-radius: 6px;
  border: 1px solid rgba(198, 161, 91, 0.45);
  color: var(--gold);
  font-size: 10px;
  letter-spacing: 0;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  font-size: 15px;
  color: var(--paper-dim);
  transition: color 0.18s ease;
}

.footer-link::before {
  content: "";
  width: 0;
  height: 1px;
  margin-right: 0;
  background: var(--gold);
  transition: width 0.22s ease, margin-right 0.22s ease;
}

.footer-link:hover { color: var(--paper); }
.footer-link:hover::before { width: 14px; margin-right: 8px; }
.footer-link[aria-current="page"] { color: var(--gold); }

.footer-contact {
  display: grid;
  gap: 12px;
  font-size: 14px;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.footer-contact__key {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.footer-contact__value {
  color: var(--paper-dim);
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.footer-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(46, 92, 74, 0.9);
  font-size: 13px;
  line-height: 1.7;
  color: var(--moss);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--line-jade);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.footer-legal__copy { color: var(--paper-dim); }
.footer-legal__icp { color: var(--moss); }

/* ==========================================================================
   15. 响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .nav-link { padding: 8px 10px; font-size: 13px; }
  .nav-link__index { display: none; }
  .nav-actions .nav-action { padding: 10px 14px; }
}

@media (max-width: 960px) {
  .site-header { padding: 10px 16px 0; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 14px;
    border-radius: 22px;
    border: 1px solid rgba(198, 161, 91, 0.3);
    background: linear-gradient(180deg, rgba(18, 44, 34, 0.99), rgba(8, 18, 14, 0.99));
    box-shadow: 0 34px 64px -34px #000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }

  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-item { display: block; }
  .nav-item--split::before { display: none; }

  .nav-link {
    display: flex;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 15px;
  }

  .nav-link__index { display: inline; }

  .nav-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(46, 92, 74, 0.85);
  }

  .nav-action { width: 100%; }

  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid > .cell { grid-column: span var(--span-md, 6); }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--contact { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .shell { padding-inline: 16px; }
  .header-shell { gap: 8px; padding: 8px 8px 8px 12px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
  .brand-name { font-size: 16px; }
  .brand-sub { display: none; }
  .nav-toggle { padding: 8px 12px; }

  .grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-sm, 16px);
  }
  .grid > .cell { grid-column: 1 / -1; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-tagline { text-align: left; }
  .footer-legal { flex-direction: column; align-items: flex-start; gap: 12px; }
  .prose { font-size: 16px; }
}

/* ---------- 16. 降低动效 ---------- */
@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;
  }

  .has-reveal [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scroll-meter__bar { transition: none; }
}