/* ============================================================
   上下分电玩 · 共享外壳样式 /assets/site.css
   霓虹街机厅 × 雪域夜色 · 复古刊物排版
   ============================================================ */

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

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

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

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

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

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

a { color: inherit; }

[hidden] { display: none !important; }

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ink-purple: #120A18;
  --plum: #241126;
  --paper: #F4E8D6;
  --paper-warm: #E8D4B8;
  --cyan: #3DE1FF;
  --magenta: #FF3DBE;
  --signal: #FF5A3C;
  --gold: #F2B84B;
  --cream: #FFF7EA;
  --mauve: #C9B8D6;
  --mint: #5CE1A6;
  --glass: rgba(255, 255, 255, .16);
  --glass-soft: rgba(255, 255, 255, .07);
  --ink: #1E1018;
  --ink-soft: #4B3350;

  --shell: 1280px;
  --gutter: clamp(20px, 4vw, 72px);
  --radius: 18px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --focus: var(--cyan);

  --font-display: "Archivo Black", "Noto Sans SC", "Source Han Sans SC",
    "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC",
    Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", "Noto Sans Mono CJK SC", ui-monospace,
    SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background:
    radial-gradient(1100px 620px at 86% -12%, rgba(255, 61, 190, .18), transparent 62%),
    radial-gradient(900px 520px at 4% 2%, rgba(61, 225, 255, .15), transparent 64%),
    radial-gradient(760px 420px at 50% 116%, rgba(242, 184, 75, .10), transparent 68%),
    var(--ink-purple);
  background-attachment: fixed;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: .01em;
  overflow-x: hidden;
}

@media (min-width: 768px) {
  body { font-size: 17px; }
}

h1, .h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 5vw, 5.2rem);
  line-height: .98;
  letter-spacing: -.02em;
}

h2, .h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.06;
  letter-spacing: -.01em;
}

h3, .h3 {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  line-height: 1.3;
}

p { overflow-wrap: break-word; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

::selection {
  background: var(--magenta);
  color: #12010C;
}

/* ---------- 4. 焦点与可访问 ---------- */
:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 8px;
}

.panel--paper :focus-visible,
.panel--warm :focus-visible {
  outline-color: #B0106F;
}

#main-content {
  display: block;
  position: relative;
  z-index: 1;
  scroll-margin-top: 24px;
  outline: none;
}

/* ---------- 5. 通用容器与节奏 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(32px, 6vw, 76px);
}

.section--tight {
  padding-block: clamp(20px, 3.4vw, 44px);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 36px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}

.lede {
  max-width: 60ch;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.02rem, 1.5vw, 1.28rem);
  line-height: 1.72;
  color: var(--mauve);
}

.panel--paper .lede,
.panel--warm .lede {
  color: var(--ink-soft);
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease),
    background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.btn--primary {
  background: linear-gradient(118deg, var(--cyan) 0%, #8BF1FF 48%, var(--magenta) 100%);
  color: #12060F;
  box-shadow: 0 14px 34px -18px var(--cyan), inset 0 0 0 1px rgba(255, 255, 255, .35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -16px var(--magenta), inset 0 0 0 1px rgba(255, 255, 255, .5);
}

.btn--ghost {
  background: var(--glass-soft);
  border-color: var(--glass);
  color: var(--cream);
}

.btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

.btn--gold {
  background: var(--gold);
  color: #241126;
  box-shadow: 0 12px 30px -18px var(--gold);
}

.btn--gold:hover { transform: translateY(-2px); }

.btn--sm {
  padding: 9px 16px;
  font-size: .82rem;
}

/* ---------- 7. 页头 ---------- */
.site-header {
  position: relative;
  z-index: 60;
  background:
    linear-gradient(180deg, rgba(36, 17, 38, .96), rgba(18, 10, 24, .92));
  border-bottom: 1px solid var(--glass);
  box-shadow: 0 24px 60px -46px #000;
}

/* 跳转链接 */
.skip-link {
  position: absolute;
  left: 16px;
  top: -120px;
  z-index: 300;
  padding: 12px 22px;
  border-radius: 0 0 12px 12px;
  background: var(--cyan);
  color: #0B0410;
  font-weight: 800;
  font-size: .9rem;
  text-decoration: none;
  transition: top .18s var(--ease);
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* 滚动进度 */
.scroll-meter {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 200;
  background: rgba(255, 255, 255, .07);
  pointer-events: none;
}

.scroll-meter__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta) 58%, var(--gold));
  box-shadow: 0 0 14px rgba(61, 225, 255, .7);
}

/* 快讯带 */
.ticker {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: stretch;
  background: linear-gradient(90deg, var(--signal), #FF7B3F 58%, var(--gold));
  color: #1A0510;
  border-bottom: 1px solid rgba(26, 5, 16, .25);
}

.ticker__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  background: #1A0510;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.ticker__label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal);
  animation: ticker-blink 2.2s ease-in-out infinite;
}

@keyframes ticker-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

.ticker__viewport {
  overflow: hidden;
  display: flex;
  align-items: center;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 22px, #000 calc(100% - 22px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 22px, #000 calc(100% - 22px), transparent);
}

.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker-run 28s linear infinite;
}

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 26px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.ticker__item::after {
  content: "◆";
  font-size: 8px;
  opacity: .5;
}

@keyframes ticker-run {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

.ticker[data-paused] .ticker__track {
  animation-play-state: paused;
}

.ticker__toggle {
  padding: 0 14px;
  border-left: 1px solid rgba(26, 5, 16, .3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  color: #1A0510;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.ticker__toggle:hover {
  background: #1A0510;
  color: var(--gold);
}

/* 刊头区 */
.masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(14px, 3vw, 40px);
  padding-block: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex: none;
  text-decoration: none;
  color: var(--cream);
}

.brand__glyph {
  position: relative;
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan) 48%, var(--magenta) 48%, var(--magenta) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3), 0 12px 26px -14px var(--magenta);
}

.brand__glyph::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #120A18;
  transform: translateX(-50%);
}

.brand__glyph::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 22px;
  width: 4px;
  height: 13px;
  border-radius: 2px;
  background: #120A18;
  transform: translateX(-50%);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.14rem;
  letter-spacing: .04em;
  line-height: 1.15;
  color: var(--cream);
}

.brand__tagline {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--mauve);
}

/* 快捷芯片 */
.utility {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.utility__item { display: flex; }

.utility__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--glass);
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  color: var(--mauve);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .05em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease),
    box-shadow .2s var(--ease), background-color .2s var(--ease);
}

.utility__link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.utility__item:last-child .utility__link::before {
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
}

.utility__link:hover {
  color: var(--cream);
  border-color: var(--cyan);
  background: rgba(61, 225, 255, .1);
  box-shadow: 0 0 0 3px rgba(61, 225, 255, .12);
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 11px 16px;
  border: 1px solid var(--glass);
  border-radius: 12px;
  background: var(--glass-soft);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  cursor: pointer;
}

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.site-header[data-open] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header[data-open] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.site-header[data-open] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle__text { line-height: 1; }

/* 主栏目条 */
.primary-nav {
  display: block;
  border-top: 1px solid var(--glass);
  background: rgba(18, 10, 24, .55);
}

.primary-nav__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-block: 9px;
}

.primary-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  flex: 1 1 auto;
}

.primary-nav__cell { display: flex; }

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 15px;
  border-radius: 11px;
  color: var(--cream);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease),
    box-shadow .2s var(--ease);
}

.primary-nav__idx {
  font-size: 10px;
  font-weight: 700;
  color: var(--mauve);
  letter-spacing: .1em;
  transition: color .2s var(--ease);
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 6px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .22s var(--ease);
}

.primary-nav__link:hover {
  color: var(--cyan);
  background: rgba(61, 225, 255, .09);
}

.primary-nav__link:hover::after { transform: scaleX(1); }

.primary-nav__link[aria-current="page"] {
  color: #FFFFFF;
  background: linear-gradient(180deg, rgba(61, 225, 255, .22), rgba(255, 61, 190, .16));
  box-shadow: inset 0 0 0 1px rgba(61, 225, 255, .55), 0 10px 26px -20px var(--cyan);
}

.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.primary-nav__link[aria-current="page"] .primary-nav__idx {
  color: var(--cyan);
}

.primary-nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
}

/* ---------- 8. 通用内容组件 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

.panel {
  position: relative;
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid var(--glass);
  border-radius: var(--radius);
  background: var(--plum);
  color: var(--cream);
}

.panel--paper {
  background: var(--paper);
  color: var(--ink);
  border-color: rgba(18, 10, 24, .1);
  box-shadow: 0 30px 70px -46px #000;
}

.panel--warm {
  background: var(--paper-warm);
  color: var(--ink);
  border-color: rgba(18, 10, 24, .12);
}

.panel--glass {
  background: var(--glass-soft);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: var(--glass);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tag--magenta { color: var(--magenta); }
.tag--gold { color: var(--gold); }
.tag--mint { color: var(--mint); }

.panel--paper .tag,
.panel--warm .tag { color: #9A0F62; }

.crumbs { padding-block: 16px 0; }

.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--mauve);
}

.crumbs__link {
  color: var(--mauve);
  text-decoration: none;
  transition: color .18s var(--ease);
}

.crumbs__link:hover { color: var(--cyan); }

.crumbs__sep {
  color: rgba(201, 184, 214, .5);
}

.crumbs__current {
  color: var(--cream);
  font-weight: 700;
}

.prose {
  max-width: 68ch;
  color: var(--cream);
}

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

.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  margin-top: 1.6em;
}

.prose h3 {
  margin-top: 1.4em;
  color: var(--gold);
}

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

.prose ul,
.prose ol {
  padding-left: 1.3em;
  list-style: square;
}

.prose li + li { margin-top: .45em; }

/* ---------- 9. 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass);
  border-radius: 16px;
  background: linear-gradient(145deg, var(--plum), #180C20 65%, #100812);
  aspect-ratio: 16 / 10;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 225, 255, .13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 61, 190, .11) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .55;
  pointer-events: none;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 54%, rgba(18, 10, 24, .78));
  pointer-events: none;
}

.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--portrait { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  z-index: 2;
  left: 16px;
  right: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cream);
}

/* ---------- 10. 主题筛选协议 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
  border: 1px dashed rgba(255, 255, 255, .2);
  border-radius: 16px;
  background: rgba(255, 255, 255, .035);
}

.filter-btn {
  padding: 8px 15px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: transparent;
  color: var(--mauve);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .2s var(--ease), background-color .2s var(--ease),
    border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.filter-btn:hover {
  color: var(--cream);
  border-color: var(--cyan);
}

.filter-btn[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #0B0410;
  font-weight: 800;
  box-shadow: 0 10px 26px -16px var(--cyan);
}

.filter-empty {
  padding: 20px;
  border: 1px dashed rgba(255, 255, 255, .22);
  border-radius: 14px;
  color: var(--mauve);
  font-size: .92rem;
}

.filter-empty a { color: var(--cyan); }

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 112px);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(36, 17, 38, .95) 0%, #160B1C 62%, #0E0713 100%);
  border-top: 1px solid var(--glass);
  color: var(--cream);
}

.footer-ridge {
  position: absolute;
  inset: auto 0 0 0;
  height: 150px;
  pointer-events: none;
  opacity: .5;
  background: linear-gradient(180deg, transparent, rgba(61, 225, 255, .14));
  -webkit-clip-path: polygon(0 82%, 7% 66%, 14% 78%, 24% 46%, 33% 70%, 44% 54%, 55% 78%, 66% 44%, 76% 70%, 87% 56%, 100% 74%, 100% 100%, 0 100%);
  clip-path: polygon(0 82%, 7% 66%, 14% 78%, 24% 46%, 33% 70%, 44% 54%, 55% 78%, 66% 44%, 76% 70%, 87% 56%, 100% 74%, 100% 100%, 0 100%);
}

.footer-watermark {
  position: absolute;
  right: clamp(8px, 3vw, 48px);
  top: -18px;
  font-family: var(--font-display);
  font-size: clamp(90px, 16vw, 200px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(255, 247, 234, .045);
  pointer-events: none;
  user-select: none;
}

.footer-main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1.6fr .95fr;
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(40px, 6vw, 76px) clamp(28px, 4vw, 52px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 34ch;
}

.brand--footer .brand__glyph {
  width: 38px;
  height: 38px;
  border-radius: 11px;
}

.brand--footer .brand__glyph::before {
  width: 9px;
  height: 9px;
  top: 10px;
}

.brand--footer .brand__glyph::after {
  top: 18px;
  height: 11px;
}

.brand--footer .brand__name { font-size: 1.02rem; }

.brand--footer .brand__tagline {
  font-size: 11px;
  color: var(--mauve);
}

.footer-brand__summary {
  font-size: .93rem;
  line-height: 1.72;
  color: var(--mauve);
}

.footer-brand__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 5px 11px;
  border: 1px dashed rgba(242, 184, 75, .5);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.footer-col { display: flex; flex-direction: column; gap: 12px; }

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer-col__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(242, 184, 75, .55), transparent);
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mauve);
  font-size: .93rem;
  font-weight: 500;
  text-decoration: none;
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.footer-col__link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: rgba(201, 184, 214, .45);
  transition: background-color .2s var(--ease), box-shadow .2s var(--ease);
}

.footer-col__link:hover {
  color: var(--cyan);
  transform: translateX(3px);
}

.footer-col__link:hover::before {
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact__row {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(201, 184, 214, .8);
  padding-top: 3px;
}

.footer-contact__val {
  font-size: .9rem;
  line-height: 1.55;
  color: var(--cream);
  overflow-wrap: break-word;
}

.footer-base {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 18px 22px;
  border-top: 1px solid var(--glass);
}

.footer-base__legal,
.footer-base__note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: rgba(201, 184, 214, .85);
}

.footer-base__note { color: rgba(201, 184, 214, .6); }

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--glass);
  border-radius: 999px;
  background: rgba(255, 255, 255, .05);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease),
    background-color .2s var(--ease), transform .2s var(--ease);
}

.to-top::before {
  content: "↑";
  color: var(--cyan);
  font-size: 13px;
  line-height: 1;
}

.to-top:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(61, 225, 255, .1);
  transform: translateY(-2px);
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }
}

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }

  .utility {
    order: 3;
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .utility::-webkit-scrollbar { display: none; }

  .primary-nav {
    display: none;
    background: rgba(14, 8, 19, .99);
  }

  .site-header[data-open] .primary-nav {
    display: block;
    animation: nav-drop .24s var(--ease) both;
  }

  @keyframes nav-drop {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .primary-nav__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding-block: 16px 20px;
  }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .primary-nav__link {
    width: 100%;
    justify-content: flex-start;
    padding: 14px 14px;
    border: 1px solid rgba(255, 255, 255, .08);
    background: rgba(255, 255, 255, .03);
    font-size: 1rem;
  }

  .primary-nav__link::after { display: none; }

  .primary-nav__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 9px;
    padding-top: 6px;
  }

  .primary-nav__actions .btn { width: 100%; }

  .grid--split,
  .grid--2,
  .grid--3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .ticker__item { font-size: 12px; padding: 8px 20px; }
  .ticker__label { font-size: 10px; letter-spacing: .16em; padding: 9px 11px; }
  .ticker__toggle { font-size: 10px; padding: 0 11px; }

  .masthead__inner { padding-block: 14px; gap: 12px; }
  .brand__glyph { width: 40px; height: 40px; border-radius: 11px; }
  .brand__name { font-size: 1.02rem; }
  .brand__tagline { font-size: 10.5px; }

  .footer-main { grid-template-columns: minmax(0, 1fr); }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: auto; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .footer-watermark { font-size: 120px; top: -6px; }
}

@media (max-width: 460px) {
  .footer-nav { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 13. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .ticker__track {
    animation: none !important;
    transform: none !important;
  }

  .ticker__viewport {
    overflow-x: auto;
    -webkit-mask-image: none;
    mask-image: none;
    scrollbar-width: none;
  }

  .ticker__viewport::-webkit-scrollbar { display: none; }

  .ticker__label::before { animation: none; }

  .btn:hover,
  .to-top:hover,
  .footer-col__link:hover { transform: none; }
}