/* ==========================================================================
   新普金娱乐 · 共享站点样式 /assets/site.css
   视觉体系：深墨蓝 + 鎏金 + 档案米白 + 校对红 + 校准绿
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, p,
figure, blockquote, dl, dd, ul, ol { margin: 0; }

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

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

button { font: inherit; }

a { color: inherit; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink-900: #070F1A;
  --ink-800: #0E1B2C;
  --ink-700: #16273B;
  --slate: #22384F;
  --paper: #F1E7D4;
  --card: #FBF5E8;
  --gold: #C8A24C;
  --gold-bright: #E9CE8B;
  --gold-ink: #7A5B1E;
  --red: #BE4331;
  --green: #3F7A62;
  --text: #17202B;
  --muted: #5C6674;

  --line-dark: rgba(200, 162, 76, 0.26);
  --line-light: rgba(23, 32, 43, 0.16);

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

  --fs-xs: 12px;
  --fs-sm: 13px;
  --fs-md: 15px;
  --fs-base: 17px;
  --fs-lg: 20px;
  --fs-xl: 26px;
  --fs-2xl: 34px;
  --fs-3xl: 46px;
  --fs-4xl: 64px;

  --header-h: 78px;
  --page-max: 1280px;
  --gutter: clamp(18px, 4vw, 48px);

  --dur: 180ms;
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --cut: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

/* ---------- 3. Base ---------- */
body {
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--text);
}

p { margin-bottom: 1.1em; }

strong { font-weight: 700; }

::selection {
  background: var(--gold);
  color: var(--ink-900);
}

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

.site-header :focus-visible,
.site-footer :focus-visible,
.section--ink :focus-visible { outline-color: var(--gold-bright); }

/* ---------- 4. 排版工具 ---------- */
.headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.2vw, 64px);
  line-height: 1.12;
  letter-spacing: 0.06em;
}

.subhead {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: 0.06em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--gold-ink);
  text-transform: uppercase;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* ---------- 5. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 6vw, 80px); }

.section--ink {
  background: var(--ink-800);
  color: var(--paper);
}

.section--ink h1,
.section--ink h2,
.section--ink h3,
.section--ink .headline,
.section--ink .subhead { color: var(--paper); }

.section--ink .eyebrow { color: var(--gold); }
.section--ink .media-caption { color: rgba(241, 231, 212, 0.6); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-light);
  margin-bottom: clamp(22px, 3vw, 36px);
}

.section--ink .section-head { border-bottom-color: var(--line-dark); }

.rule {
  height: 1px;
  border: 0;
  background: var(--line-light);
  margin: clamp(22px, 3vw, 34px) 0;
}

.section--ink .rule { background: var(--line-dark); }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 28px);
}

/* ---------- 6. 档案装饰元素 ---------- */
.band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  padding: 14px 0;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.section--ink .band {
  border-color: var(--line-dark);
  color: rgba(241, 231, 212, 0.66);
}

.annotation {
  border-left: 2px solid var(--red);
  padding: 2px 0 2px 12px;
  font-size: var(--fs-sm);
  line-height: 1.78;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.section--ink .annotation { color: rgba(241, 231, 212, 0.68); }

.archive-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  border: 1px solid rgba(200, 162, 76, 0.45);
  background: rgba(200, 162, 76, 0.08);
}

.archive-tag--ink {
  color: var(--gold-ink);
  border-color: rgba(122, 91, 30, 0.4);
  background: rgba(200, 162, 76, 0.14);
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.status-dot::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(63, 122, 98, 0.18);
}

.status-dot.is-check::before {
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(190, 67, 49, 0.18);
}

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.12em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  clip-path: var(--cut);
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.btn--gold {
  background: var(--gold);
  color: var(--ink-900);
  border-color: var(--gold-bright);
}
.btn--gold:hover { background: var(--gold-bright); }

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(200, 162, 76, 0.55);
}
.btn--ghost:hover {
  color: var(--gold-bright);
  background: rgba(200, 162, 76, 0.12);
  border-color: var(--gold);
}

.btn--quiet {
  background: transparent;
  color: var(--text);
  border-color: rgba(23, 32, 43, 0.28);
}
.btn--quiet:hover {
  border-color: var(--gold);
  background: rgba(200, 162, 76, 0.14);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold);
}

.breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 162, 76, 0.6);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.breadcrumb-link:hover {
  color: var(--text);
  background: rgba(200, 162, 76, 0.18);
}

.breadcrumb-current { color: var(--text); font-weight: 700; }

/* ---------- 9. 筛选协议 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
}

.filter-btn {
  padding: 9px 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: var(--slate);
  border: 1px solid rgba(200, 162, 76, 0.3);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% 72%, calc(100% - 10px) 100%, 0 100%);
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.filter-btn:hover {
  background: #2B465F;
  color: var(--gold-bright);
}

.filter-btn[aria-pressed="true"] {
  background: var(--gold);
  color: var(--ink-900);
  border-color: var(--gold-bright);
}

[data-filter-item][hidden] { display: none !important; }

.is-entering { animation: filterIn var(--dur) var(--ease) both; }

@keyframes filterIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.filter-empty {
  padding: 18px 0;
  border-top: 1px dashed var(--line-light);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 10. 折叠长文 ---------- */
.fold {
  padding: clamp(14px, 2vw, 20px);
  background: var(--card);
  border: 1px solid var(--line-light);
  clip-path: var(--cut);
}

.fold + .fold { margin-top: 14px; }

.fold-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}

.fold-head .mono {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gold-ink);
}

.fold-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(23, 32, 43, 0.24);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.fold-toggle::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-ink);
}

.fold.is-open .fold-toggle::after { content: "－"; }

.fold-toggle:hover {
  border-color: var(--gold);
  background: rgba(200, 162, 76, 0.14);
}

.fold-body {
  font-size: var(--fs-md);
  line-height: 1.85;
  color: var(--text);
}

.fold:not(.is-open) .fold-body {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 11. 图片容器基础规则 ---------- */
.media-figure { margin: 0 0 1.6em; }

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--slate);
  border: 1px solid rgba(200, 162, 76, 0.35);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

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

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-frame--paper {
  background: var(--card);
  border-color: rgba(23, 32, 43, 0.18);
}

.media-caption {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 12. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: 14px;
  top: -72px;
  z-index: 200;
  padding: 10px 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.12em;
  color: var(--ink-900);
  background: var(--gold);
  text-decoration: none;
  transition: top var(--dur) var(--ease);
}

.skip-link:focus { top: 12px; }

/* ---------- 13. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  color: var(--paper);
  background: linear-gradient(
    180deg,
    rgba(7, 15, 26, 0.95) 0%,
    rgba(7, 15, 26, 0.74) 62%,
    rgba(7, 15, 26, 0.42) 100%
  );
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(200, 162, 76, 0.18);
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.site-header.is-solid {
  background: var(--ink-800);
  border-bottom-color: rgba(200, 162, 76, 0.45);
  box-shadow: 0 18px 34px -28px rgba(0, 0, 0, 0.92);
}

.header-progress {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  overflow: hidden;
  background: rgba(200, 162, 76, 0.14);
}

.header-progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.12s linear;
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--paper);
}

.brand-stamp {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  line-height: 1;
  color: var(--gold-bright);
  background: rgba(200, 162, 76, 0.08);
  border: 1px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
  transition: background var(--dur) var(--ease);
}

.brand:hover .brand-stamp { background: rgba(200, 162, 76, 0.24); }

.brand-text { display: block; }

.brand-line {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.25;
  letter-spacing: 0.18em;
  transition: color var(--dur) var(--ease);
}

.brand:hover .brand-line { color: var(--gold-bright); }

.brand-sub {
  display: block;
  max-height: 20px;
  overflow: hidden;
  font-family: var(--font-body);
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: rgba(241, 231, 212, 0.62);
  opacity: 1;
  transition: max-height var(--dur) var(--ease),
              opacity var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.site-header.is-solid .brand-sub {
  max-height: 0;
  opacity: 0;
  transform: translateY(-3px);
}

.site-nav {
  display: flex;
  justify-content: center;
  flex: 1 1 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.4vw, 22px);
}

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 1px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.1em;
  color: rgba(241, 231, 212, 0.8);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-index {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 10.5px;
  letter-spacing: 0;
  color: rgba(200, 162, 76, 0.8);
}

.nav-link:hover {
  color: var(--gold-bright);
  border-bottom-color: rgba(233, 206, 139, 0.45);
}

.nav-link[aria-current="page"] {
  color: var(--gold-bright);
  border-bottom-color: var(--gold);
}

.nav-link[aria-current="page"] .nav-index { color: var(--gold-bright); }

.nav-foot { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-decoration: none;
  color: var(--gold-bright);
  background: rgba(200, 162, 76, 0.07);
  border: 1px solid rgba(200, 162, 76, 0.5);
  clip-path: var(--cut);
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.header-cta:hover {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold-bright);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--paper);
  background: transparent;
  border: 1px solid rgba(200, 162, 76, 0.4);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-toggle:hover {
  color: var(--gold-bright);
  border-color: var(--gold);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
  height: 14px;
}

.nav-toggle-bars span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.site-header[data-open="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.3);
}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  position: relative;
  padding: clamp(36px, 6vw, 66px) 0 26px;
  background: var(--ink-900);
  color: var(--paper);
  border-top: 1px solid var(--line-dark);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 8px;
  background: repeating-linear-gradient(
    135deg,
    rgba(200, 162, 76, 0.42) 0 1px,
    transparent 1px 9px
  );
  opacity: 0.55;
}

.footer-inner {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(200, 162, 76, 0.18);
}

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

.footer-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 1;
  color: var(--gold-bright);
  border: 1px solid var(--gold);
  background: rgba(200, 162, 76, 0.08);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

.footer-brand-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.18em;
  color: var(--paper);
}

.footer-tag {
  margin: 4px 0 0;
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: rgba(241, 231, 212, 0.6);
}

.footer-stamp {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid rgba(190, 67, 49, 0.7);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(233, 206, 139, 0.78);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.7fr;
  gap: clamp(24px, 4vw, 52px);
  padding: clamp(24px, 4vw, 40px) 0;
}

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

.footer-col-title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(200, 162, 76, 0.18);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.footer-list {
  display: grid;
  gap: 9px;
}

.footer-link {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: rgba(241, 231, 212, 0.78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-link:hover {
  color: var(--gold-bright);
  border-bottom-color: rgba(200, 162, 76, 0.5);
}

.footer-contact {
  display: grid;
  gap: 10px;
}

.contact-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  align-items: start;
  font-size: var(--fs-sm);
}

.contact-label {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.contact-value {
  line-height: 1.65;
  color: rgba(241, 231, 212, 0.88);
  word-break: break-word;
}

.footer-note {
  margin: 14px 0 0;
  padding-left: 10px;
  border-left: 2px solid rgba(200, 162, 76, 0.35);
  font-size: 12px;
  line-height: 1.72;
  color: rgba(241, 231, 212, 0.54);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(200, 162, 76, 0.18);
}

.footer-copy,
.footer-icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: rgba(241, 231, 212, 0.55);
}

.footer-icp { color: rgba(233, 206, 139, 0.66); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-left: auto;
}

.footer-legal-link {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(241, 231, 212, 0.7);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-legal-link:hover {
  color: var(--gold-bright);
  border-bottom-color: rgba(200, 162, 76, 0.55);
}

.footer-bottom-line {
  margin: 14px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: rgba(241, 231, 212, 0.42);
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --header-h: 66px; }

  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 10px var(--gutter) 20px;
    background: var(--ink-900);
    border-top: 1px solid var(--line-dark);
    border-bottom: 1px solid var(--line-dark);
    box-shadow: 0 26px 40px -30px rgba(0, 0, 0, 0.95);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) var(--ease);
  }

  .site-header[data-open="true"] .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    padding: 14px 2px;
    font-size: 15px;
    border-bottom-width: 1px;
    border-bottom-color: rgba(200, 162, 76, 0.14);
    border-left: 2px solid transparent;
    transition: color var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                background var(--dur) var(--ease),
                padding var(--dur) var(--ease);
  }

  .nav-link[aria-current="page"] {
    padding-left: 12px;
    border-bottom-color: rgba(200, 162, 76, 0.32);
    border-left-color: var(--gold);
    background: rgba(200, 162, 76, 0.07);
  }

  .nav-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(200, 162, 76, 0.2);
  }

  .nav-foot-label {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.2em;
    color: rgba(200, 162, 76, 0.75);
  }

  .nav-foot-link {
    padding-bottom: 2px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 12.5px;
    letter-spacing: 0.1em;
    color: rgba(241, 231, 212, 0.76);
    text-decoration: none;
    border-bottom: 1px solid rgba(200, 162, 76, 0.4);
    transition: color var(--dur) var(--ease);
  }

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

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--contact { grid-column: 1 / -1; }
  .grid-12 { grid-template-columns: repeat(6, 1fr); }
}

@media (max-width: 600px) {
  .brand-stamp { width: 32px; height: 32px; font-size: 13px; }
  .brand-line { font-size: 15px; letter-spacing: 0.14em; }
  .brand-sub { display: none; }
  .nav-toggle-label { display: none; }

  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-col--contact { grid-column: auto; }
  .footer-legal { margin-left: 0; }
  .grid-12 { grid-template-columns: repeat(2, 1fr); }

  .contact-row { grid-template-columns: 40px 1fr; }
}

@media (max-width: 380px) {
  .fold-head { flex-wrap: wrap; }
  .filter-btn { padding: 8px 11px; font-size: 11.5px; }
}

/* ---------- 16. 动效降级 ---------- */
@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;
  }

  .is-entering { animation: none !important; }
  .header-progress-bar { transition: none; }
}