/* ============================================================
   鱼丸游戏站 · /assets/site.css
   共享外壳：变量、重置、排版、命令栏、页脚、基础组件
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink-950: #061523;
  --ink-900: #0A2238;
  --plate-800: #0F3554;
  --line-700: #155B7A;
  --cream: #F4EBDD;
  --cream-dim: rgba(244, 235, 221, 0.76);
  --coral: #FF6B4A;
  --coral-soft: #FFA48E;
  --mint: #3BF0C8;
  --amber: #FFC857;
  --mist: #9BB3C7;
  --hairline: rgba(155, 179, 199, 0.22);
  --hairline-soft: rgba(155, 179, 199, 0.12);

  --font-title: "MiSans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --shell: 1360px;
  --gutter: 24px;
  --radius: 4px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --bar-h: 68px;
}

/* ---------- 2. 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, figure, blockquote, dl, dd, address {
  margin: 0;
}

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

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

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

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

a { color: inherit; }

[hidden] { display: none !important; }

kbd { font-family: var(--font-mono); }

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--ink-950);
  background-image:
    linear-gradient(rgba(21, 91, 122, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 91, 122, 0.13) 1px, transparent 1px),
    radial-gradient(1200px 620px at 78% -12%, rgba(15, 53, 84, 0.85), transparent 68%);
  background-size: 72px 72px, 72px 72px, 100% 100%;
  background-position: center top, center top, center top;
  color: var(--cream-dim);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.005em;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--cream);
}

h1 { font-size: clamp(2.4rem, 5vw, 5.2rem); }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 1.7vw, 1.45rem); letter-spacing: -0.01em; }
h4 { font-size: 1.05rem; letter-spacing: 0; }

p { max-width: 72ch; }

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

::selection {
  background: var(--coral);
  color: var(--ink-950);
}

/* ---------- 4. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

#main-content { scroll-margin-top: calc(var(--bar-h) + 64px); }

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

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

.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: 1 / -1; }

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

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.stack { display: grid; gap: 16px; }

.divider {
  height: 1px;
  border: 0;
  background: var(--hairline);
}

.prose { max-width: 68ch; }
.prose p + p { margin-top: 1em; }

/* ---------- 6. 说明牌与元信息 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--coral);
}

.eyebrow::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--coral);
}

.meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.mono { font-family: var(--font-mono); }

/* ---------- 7. 面包屑（页面级） ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.breadcrumb__link:hover {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.breadcrumb__sep { color: var(--line-700); }

.breadcrumb__current { color: var(--cream); }

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease),
              border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.btn--primary {
  background: var(--coral);
  color: var(--ink-950);
  box-shadow: 0 10px 24px -14px rgba(255, 107, 74, 0.9);
}

.btn--primary:hover {
  background: var(--coral-soft);
  transform: translateY(-1px);
}

.btn--ghost {
  background: rgba(15, 53, 84, 0.42);
  border-color: rgba(244, 235, 221, 0.3);
  color: var(--cream);
}

.btn--ghost:hover {
  border-color: var(--mint);
  color: var(--cream);
  background: rgba(59, 240, 200, 0.1);
  transform: translateY(-1px);
}

.btn--sm {
  padding: 7px 13px;
  font-size: 0.84rem;
}

/* ---------- 9. 舱窗面板 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: linear-gradient(160deg, rgba(15, 53, 84, 0.94), rgba(10, 34, 56, 0.88));
  border: 1px solid rgba(155, 179, 199, 0.2);
  border-radius: var(--radius);
  box-shadow: 0 22px 46px -34px rgba(0, 0, 0, 0.95);
}

.panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20px;
  width: 52px;
  height: 2px;
  background: linear-gradient(90deg, var(--mint), transparent);
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.panel__title {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--cream);
}

/* ---------- 10. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background:
    linear-gradient(155deg, rgba(15, 53, 84, 0.95), rgba(10, 34, 56, 0.9) 58%, rgba(255, 107, 74, 0.18));
}

.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }
.media--wide { aspect-ratio: 21 / 9; }

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

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(6, 21, 35, 0.22) 0 1px,
    transparent 1px 3px
  );
  opacity: 0.55;
}

/* ============================================================
   11. 头部
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(6, 21, 35, 0.98) 0%, rgba(6, 21, 35, 0.92) 100%);
  border-bottom: 1px solid var(--hairline);
  backdrop-filter: blur(10px);
  transition: box-shadow 0.2s var(--ease);
}

.site-header[data-scrolled] {
  box-shadow: 0 18px 40px -30px rgba(0, 0, 0, 1);
}

/* skip link */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 3px;
  background: var(--mint);
  color: #04120E;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.18s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: none;
  outline: 2px solid var(--cream);
  outline-offset: 2px;
}

/* 阅读进度 */
.progress-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(21, 91, 122, 0.4);
  overflow: hidden;
  pointer-events: none;
}

.progress-rail__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--coral), var(--amber) 52%, var(--mint));
  transition: transform 0.14s linear;
}

/* 命令栏 */
.command-bar { position: relative; }

.command-bar__inner {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 26px;
  min-height: var(--bar-h);
  padding-block: 10px;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--cream);
}

.brand__mark {
  position: relative;
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(59, 240, 200, 0.34);
  border-radius: 2px;
  background-image:
    linear-gradient(var(--coral), var(--coral)),
    linear-gradient(var(--coral), var(--coral)),
    linear-gradient(var(--cream), var(--cream)),
    linear-gradient(var(--mint), var(--mint)),
    linear-gradient(rgba(15, 53, 84, 0.86), rgba(15, 53, 84, 0.86));
  background-repeat: no-repeat;
  background-size: 6px 6px, 6px 6px, 6px 6px, 6px 6px, 100% 100%;
  background-position: 7px 8px, 17px 8px, 17px 18px, 25px 18px, 0 0;
  transition: transform 0.2s var(--ease);
}

.brand:hover .brand__mark { transform: translateY(-1px); }

.brand__text {
  display: grid;
  gap: 1px;
  line-height: 1.2;
}

.brand__name {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.brand__meta {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

/* 主导航 */
.nav { min-width: 0; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.nav__item { flex: none; }

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--cream-dim);
  font-size: 0.93rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease),
              border-color 0.18s var(--ease);
}

.nav__link::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  background: var(--line-700);
  transition: background-color 0.18s var(--ease);
}

.nav__link:hover {
  color: var(--cream);
  background: rgba(15, 53, 84, 0.6);
  border-color: var(--hairline);
}

.nav__link:hover::before { background: var(--mint); }

.nav__link[aria-current="page"] {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink-950);
}

.nav__link[aria-current="page"]::before { background: var(--ink-950); }

/* 操作区 */
.command-bar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cmd-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background: rgba(15, 53, 84, 0.5);
  color: var(--cream-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease),
              background-color 0.18s var(--ease);
}

.cmd-button:hover {
  border-color: var(--mint);
  color: var(--cream);
  background: rgba(59, 240, 200, 0.1);
}

.cmd-button__key {
  padding: 1px 5px;
  border: 1px solid rgba(155, 179, 199, 0.42);
  border-radius: 2px;
  background: rgba(6, 21, 35, 0.72);
  color: var(--mist);
  font-size: 0.72rem;
  line-height: 1.4;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background: rgba(15, 53, 84, 0.62);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  position: relative;
  z-index: 90;
}

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

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--cream);
  transition: background-color 0.18s var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--cream);
  transition: transform 0.2s var(--ease);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.nav-toggle__label { white-space: nowrap; }

/* 快捷索引带 */
.tag-scroller {
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline);
  background: rgba(6, 21, 35, 0.72);
}

.tag-scroller__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-block: 8px;
  min-width: 0;
}

.tag-scroller__label {
  flex: none;
  padding-right: 12px;
  border-right: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}

.tag-scroller__track {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-700) transparent;
}

.tag-scroller__track::-webkit-scrollbar { height: 4px; }
.tag-scroller__track::-webkit-scrollbar-thumb { background: var(--line-700); border-radius: 4px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(15, 53, 84, 0.55);
  color: var(--cream-dim);
  font-size: 0.78rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease),
              background-color 0.18s var(--ease);
}

.tag:hover {
  border-color: var(--mint);
  color: var(--cream);
  background: rgba(59, 240, 200, 0.12);
}

.tag--hot {
  border-color: rgba(255, 200, 87, 0.5);
  background: rgba(255, 200, 87, 0.14);
  color: var(--amber);
}

.tag--hot:hover {
  border-color: var(--amber);
  color: var(--ink-950);
  background: var(--amber);
}

/* 检索面板 */
.command-panel {
  position: fixed;
  inset: 0;
  z-index: 120;
}

.command-panel__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 10, 18, 0.8);
  backdrop-filter: blur(3px);
}

.command-panel__box {
  position: relative;
  z-index: 1;
  width: min(620px, calc(100% - 32px));
  margin: 12vh auto 0;
  max-height: 76vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(59, 240, 200, 0.28);
  border-radius: 5px;
  background: linear-gradient(165deg, var(--plate-800), var(--ink-900) 55%, var(--ink-950));
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.9);
}

.command-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px 0;
}

.command-panel__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  padding-inline: 16px;
}

.command-panel__head .command-panel__label { padding-inline: 0; }

.command-panel__close {
  padding: 4px 10px;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background: rgba(6, 21, 35, 0.6);
  color: var(--cream-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.command-panel__close:hover { border-color: var(--coral); color: var(--cream); }

.command-panel__input {
  width: 100%;
  margin-top: 6px;
  padding: 14px 16px;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  background: transparent;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 1.02rem;
}

.command-panel__input::placeholder { color: rgba(155, 179, 199, 0.7); }

.command-panel__input:focus {
  outline: none;
  box-shadow: inset 0 -1px 0 var(--mint);
}

.command-panel__list {
  overflow-y: auto;
  padding: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-700) transparent;
}

.command-panel__item + .command-panel__item { margin-top: 2px; }

.command-panel__link {
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 3px;
  text-decoration: none;
  transition: background-color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.command-panel__link:hover,
.command-panel__link:focus-visible {
  background: rgba(59, 240, 200, 0.09);
  border-color: rgba(59, 240, 200, 0.34);
}

.command-panel__name {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 0.98rem;
  color: var(--cream);
}

.command-panel__meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--mist);
}

.command-panel__empty {
  padding: 16px;
  font-size: 0.9rem;
  color: var(--mist);
}

/* ============================================================
   12. 页脚
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 120px);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 64%);
  border-top: 1px solid var(--hairline);
  color: rgba(244, 235, 221, 0.8);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--coral), var(--amber) 42%, var(--mint) 76%, transparent);
  opacity: 0.9;
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(44px, 6vw, 72px) clamp(28px, 4vw, 44px);
}

.footer__lead {
  display: grid;
  gap: 14px;
  align-content: start;
}

.brand--footer { text-decoration: none; }

.footer__line {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--cream);
  max-width: 22ch;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
  align-content: start;
}

.footer__col { min-width: 0; }

.footer__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer__title::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--coral);
}

.footer__list {
  display: grid;
  gap: 10px;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-block: 2px;
  border-bottom: 1px solid transparent;
  color: rgba(244, 235, 221, 0.78);
  font-size: 0.94rem;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.footer__link::before {
  content: "";
  width: 4px;
  height: 4px;
  flex: none;
  background: var(--line-700);
  transition: background-color 0.18s var(--ease);
}

.footer__link:hover {
  color: var(--cream);
  border-bottom-color: var(--coral);
}

.footer__link:hover::before { background: var(--mint); }

.footer__contact {
  display: grid;
  gap: 12px;
  align-content: start;
  min-width: 0;
}

.footer__row {
  display: grid;
  gap: 2px;
  max-width: none;
}

.footer__key {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer__val {
  color: var(--cream);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.footer__note {
  font-size: 0.8rem;
  line-height: 1.65;
  color: rgba(155, 179, 199, 0.92);
  max-width: 46ch;
}

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px 28px;
  border-top: 1px solid var(--hairline);
}

.footer__legal {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--mist);
  max-width: none;
}

/* ============================================================
   13. 响应式
   ============================================================ */
@media (max-width: 1180px) {
  .command-bar__inner { gap: 16px; }
  .nav__link { padding: 8px 9px; font-size: 0.88rem; }
  .brand__meta { display: none; }
}

@media (max-width: 1000px) {
  :root { --bar-h: 64px; }

  .command-bar__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    padding-block: 11px;
  }

  .command-bar__cta { display: none; }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 80;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    width: min(86vw, 360px);
    height: 100dvh;
    padding: 86px 20px 40px;
    overflow-y: auto;
    background: linear-gradient(180deg, var(--ink-900), var(--ink-950) 72%);
    border-left: 1px solid var(--hairline);
    box-shadow: -30px 0 70px -20px rgba(0, 0, 0, 0.85);
    transform: translateX(103%);
    visibility: hidden;
    transition: transform 0.22s var(--ease), visibility 0.22s var(--ease);
  }

  .site-header[data-open] .nav {
    transform: none;
    visibility: visible;
  }

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

  .nav__link {
    padding: 13px 14px;
    font-size: 1rem;
    border-color: var(--hairline);
    background: rgba(15, 53, 84, 0.4);
  }

  .nav__link::before { background: var(--mint); }

  .nav-toggle { display: inline-flex; }

  .footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__lead { grid-column: 1 / -1; }
  .footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .grid { gap: 16px; }

  [class*="span-"] { grid-column: 1 / -1; }

  h1 { font-size: clamp(2.1rem, 8vw, 3.2rem); }
}

@media (max-width: 680px) {
  :root { --gutter: 20px; }

  body { font-size: 16.5px; }

  .cmd-button { font-size: 0.74rem; padding: 6px 8px; }
  .cmd-button__key { display: none; }

  .tag-scroller__inner { gap: 10px; }
  .tag-scroller__label { font-size: 0.6rem; letter-spacing: 0.14em; padding-right: 10px; }

  .footer__inner { grid-template-columns: minmax(0, 1fr); }
  .footer__nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__base { flex-direction: column; align-items: flex-start; }

  .command-panel__box { margin-top: 8vh; }
  .command-panel__list { max-height: 48vh; }
}

@media (max-width: 420px) {
  .footer__nav { grid-template-columns: minmax(0, 1fr); }
  .brand__name { font-size: 0.98rem; }
}

/* ============================================================
   14. 动效偏好
   ============================================================ */
@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;
  }

  .progress-rail__fill { transition: none; }
}