/* ============================================================
   必嬴主站 · 共享样式 /assets/site.css
   沙砾奶油底 · 胡杨墨绿命令栏 · 沙漠金路标 · 葡萄紫版本
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

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

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

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

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

:root {
  /* 色板 */
  --sand-cream: #F6EFE1;
  --sand-paper: #EADFC8;
  --ink: #241A14;
  --dune: #C9922F;
  --poplar: #D9602C;
  --grape: #8A3FA6;
  --teal: #2E7370;
  --poplar-ink: #1E3A2F;
  --glow: #F0B44A;
  --stone: #7C6A56;

  /* 度量 */
  --shell: 1240px;
  --gutter: clamp(1.1rem, 4vw, 2.75rem);
  --bar-h: 64px;
  --cut: 18px;

  /* 字体 */
  --font-display: "Source Han Sans SC Heavy", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, "Menlo", "Consolas", monospace;

  /* 字号台阶 */
  --step-1: clamp(0.78rem, 0.74rem + 0.18vw, 0.86rem);
  --step0: clamp(1rem, 0.97rem + 0.2vw, 1.06rem);
  --step1: clamp(1.2rem, 1.05rem + 0.7vw, 1.55rem);
  --step2: clamp(1.6rem, 1.25rem + 1.6vw, 2.5rem);
  --step3: clamp(2.15rem, 1.6rem + 3.2vw, 3.7rem);

  /* 噪点纹理 */
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23g)' opacity='0.16'/%3E%3C/svg%3E");
  --grain-soft: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23s)' opacity='0.2'/%3E%3C/svg%3E");
}

body {
  background-color: var(--sand-cream);
  background-image:
    radial-gradient(1200px 620px at 88% -12%, rgba(201, 146, 47, 0.18), transparent 66%),
    radial-gradient(900px 520px at -8% 108%, rgba(46, 115, 112, 0.13), transparent 70%),
    var(--grain);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step0);
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 { font-size: var(--step3); }
h2 { font-size: var(--step2); }
h3 { font-size: var(--step1); }

p { text-wrap: pretty; }

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

a:hover { color: var(--poplar); }

strong { font-weight: 800; }

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

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--glow);
}

.command-bar :focus-visible,
.site-foot :focus-visible {
  outline: 3px solid var(--sand-cream);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px var(--poplar-ink), 0 0 0 6px var(--glow);
}

/* ---------- 容器 ---------- */
.wrap {
  width: min(calc(100% - var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}

#main-content {
  display: block;
  scroll-margin-top: calc(var(--bar-h) + 10px);
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 1rem;
  top: -120px;
  z-index: 300;
  padding: 0.7rem 1.1rem;
  background: var(--ink);
  color: var(--sand-cream);
  font-weight: 800;
  text-decoration: none;
  border: 2px solid var(--glow);
  transition: top 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 0.65rem;
  color: var(--sand-cream);
}

/* ============================================================
   命令栏
   ============================================================ */
.command-bar {
  position: sticky;
  top: 0;
  z-index: 90;
  isolation: isolate;
  color: var(--sand-cream);
  background-color: var(--poplar-ink);
  background-image: linear-gradient(180deg, rgba(201, 146, 47, 0.12), rgba(0, 0, 0, 0) 58%);
  border-bottom: 1px solid rgba(240, 180, 74, 0.26);
  transition: box-shadow 0.25s ease;
}

.command-bar.is-scrolled {
  box-shadow: 0 14px 34px -22px rgba(20, 14, 10, 0.95);
}

.command-bar__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(105deg, transparent 40%, rgba(240, 180, 74, 0.1) 46%, transparent 52%),
    linear-gradient(105deg, transparent 66%, rgba(217, 96, 44, 0.13) 70%, transparent 74%);
  background-size: 220% 100%, 180% 100%;
  background-position: 0% 0%, 20% 0%;
}

.command-bar__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(0.75rem, 1.6vw, 1.75rem);
  min-height: var(--bar-h);
  padding-block: 0.45rem;
  transition: min-height 0.25s ease;
}

.command-bar.is-scrolled .command-bar__inner {
  min-height: calc(var(--bar-h) - 6px);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--sand-cream);
  text-decoration: none;
}

.brand:hover { color: var(--sand-cream); }

.brand__mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--ink);
  background: linear-gradient(135deg, var(--glow), var(--dune) 58%, var(--poplar));
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

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

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.1em;
}

.brand__line {
  margin-top: 0.12rem;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: rgba(246, 239, 225, 0.62);
}

/* 导航 */
.cmd-nav {
  justify-self: start;
  min-width: 0;
}

.cmd-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.1rem, 0.5vw, 0.4rem);
}

.cmd-nav__item { display: block; }

.cmd-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.34rem;
  padding: 0.42rem 0.6rem;
  color: rgba(246, 239, 225, 0.84);
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: inset 0 -3px 0 0 transparent;
  transition: color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.cmd-nav__link:hover {
  color: var(--glow);
  background: rgba(240, 180, 74, 0.13);
  box-shadow: inset 0 -3px 0 0 rgba(217, 96, 44, 0.6);
}

.cmd-nav__index {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--dune);
  transition: color 0.18s ease;
}

.cmd-nav__label { display: inline-block; }

.cmd-nav__link[aria-current="page"] {
  color: var(--sand-cream);
  background: rgba(240, 180, 74, 0.15);
  box-shadow: inset 0 -3px 0 0 var(--poplar);
}

.cmd-nav__link[aria-current="page"] .cmd-nav__index { color: var(--glow); }

.cmd-nav__foot { display: none; }

/* 右侧动作区 */
.cmd-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-self: end;
}

.cmd-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0.62rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: rgba(246, 239, 225, 0.76);
  border: 1px solid rgba(240, 180, 74, 0.34);
  white-space: nowrap;
}

.cmd-status__dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--glow);
  box-shadow: 0 0 0 3px rgba(240, 180, 74, 0.22);
}

.cmd-status__text { display: inline-block; }

.version-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.34rem 0.6rem;
  background: var(--grape);
  color: #FBF3FF;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.22);
  transition: background-color 0.18s ease, transform 0.18s ease;
}

.version-badge:hover {
  background: #9C4EB9;
  color: #FFFFFF;
  transform: translateY(-1px);
}

.version-badge__ver {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}

.version-badge__cap {
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  opacity: 0.86;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.56rem;
  background: transparent;
  color: var(--sand-cream);
  border: 1px solid rgba(240, 180, 74, 0.44);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.nav-toggle:hover { background: rgba(240, 180, 74, 0.16); }

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle__label { letter-spacing: 0.08em; }

/* 阅读进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  z-index: 2;
  background: rgba(246, 239, 225, 0.12);
  pointer-events: none;
}

.scroll-progress > span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--dune), var(--poplar) 58%, var(--grape));
  transition: width 0.12s linear;
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  background: transparent;
  color: var(--ink);
  transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn--solid {
  background: var(--poplar);
  color: #1B120C;
  border-color: #B94E20;
}

.btn--solid:hover {
  background: #E9743F;
  color: #1B120C;
  transform: translateY(-2px);
}

.btn--line {
  background: transparent;
  color: var(--ink);
  border-color: var(--dune);
}

.btn--line:hover {
  background: var(--dune);
  color: var(--ink);
  transform: translateY(-2px);
}

.btn--cmd {
  padding: 0.42rem 0.78rem;
  font-size: 0.84rem;
  background: var(--glow);
  color: var(--ink);
  border: 1px solid rgba(36, 26, 20, 0.3);
}

.btn--cmd:hover {
  background: #F9C868;
  color: var(--ink);
}

/* ============================================================
   章节 / 排版
   ============================================================ */
.section { padding-block: clamp(2.6rem, 6vw, 5.5rem); }
.section--tight { padding-block: clamp(1.6rem, 3vw, 2.6rem); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
  margin-bottom: clamp(1.2rem, 2.4vw, 2rem);
}

.section__title { font-size: var(--step2); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stone);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.lead {
  font-size: clamp(1.05rem, 1rem + 0.55vw, 1.32rem);
  line-height: 1.66;
  color: #3A2A20;
  max-width: 46ch;
}

.prose { max-width: 68ch; }

.prose > * + * { margin-top: 1.05em; }

.prose h2 { font-size: var(--step2); margin-top: 1.8em; }

.prose h3 { font-size: var(--step1); margin-top: 1.5em; }

.prose ul {
  display: grid;
  gap: 0.5rem;
}

.prose ul li {
  position: relative;
  padding-left: 1.35rem;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 0.48rem;
  height: 0.48rem;
  background: var(--dune);
  transform: rotate(45deg);
}

/* ============================================================
   网格
   ============================================================ */
.grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 2rem);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 21rem), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 15.5rem), 1fr)); }

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

@media (min-width: 900px) {
  .grid--aside {
    grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 3.2rem);
  }
}

/* ============================================================
   面板 / 卡片 / 标签
   ============================================================ */
.cut-panel {
  position: relative;
  padding: clamp(1.1rem, 2.4vw, 2rem);
  background: var(--sand-paper);
  border: 1px solid rgba(36, 26, 20, 0.16);
}

.cut-panel::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: var(--cut);
  height: var(--cut);
  background: linear-gradient(
    135deg,
    transparent 0 44%,
    var(--dune) 45% 55%,
    transparent 56% 100%
  );
  pointer-events: none;
}

.card {
  position: relative;
  display: block;
  padding: clamp(1rem, 2vw, 1.5rem);
  background: #FBF6EC;
  border: 1px solid rgba(36, 26, 20, 0.14);
  border-left: 4px solid var(--dune);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-left-color 0.2s ease;
}

.card--link {
  color: inherit;
  text-decoration: none;
}

.card--link:hover {
  color: inherit;
  transform: translateY(-2px);
  border-left-color: var(--poplar);
  box-shadow: 0 16px 30px -24px rgba(36, 26, 20, 0.85), inset 0 0 0 1px rgba(201, 146, 47, 0.32);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.16rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  background: var(--sand-paper);
  color: var(--ink);
  border: 1px solid rgba(36, 26, 20, 0.2);
}

.tag--grape {
  background: rgba(138, 63, 166, 0.14);
  color: #6C2E84;
  border-color: rgba(138, 63, 166, 0.46);
}

.tag--teal {
  background: rgba(46, 115, 112, 0.14);
  color: #22605E;
  border-color: rgba(46, 115, 112, 0.44);
}

.tag--gold {
  background: rgba(201, 146, 47, 0.2);
  color: #7A5713;
  border-color: rgba(201, 146, 47, 0.52);
}

.route-rule {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  height: 2px;
  color: var(--dune);
}

.route-rule::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--poplar);
  transform: rotate(45deg);
}

.route-rule::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--dune), rgba(201, 146, 47, 0));
}

/* ============================================================
   图片容器（页面阶段放占位图）
   ============================================================ */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--sand-paper);
  background-image:
    linear-gradient(135deg, rgba(201, 146, 47, 0.3), rgba(30, 58, 47, 0.16)),
    repeating-linear-gradient(45deg, rgba(36, 26, 20, 0.07) 0 2px, transparent 2px 12px);
  border: 1px solid rgba(36, 26, 20, 0.16);
  isolation: isolate;
}

.media-frame > img,
.media-frame > svg,
.media-frame > video,
.media-frame > picture {
  display: block;
  width: 100%;
  height: 100%;
}

.media-frame > img,
.media-frame > svg,
.media-frame > video,
.media-frame > picture > img {
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42px;
  height: 42px;
  z-index: 3;
  background: var(--frame-cut, var(--sand-cream));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.media-frame__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 4;
  padding: 0.4rem 0.8rem;
  background: var(--poplar-ink);
  color: var(--sand-cream);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

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

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
  padding-block: 1.1rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb__item { display: inline-flex; align-items: center; }

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--dune);
}

.breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 106, 86, 0.42);
}

.breadcrumb a:hover {
  color: var(--poplar);
  border-bottom-color: var(--poplar);
}

/* ============================================================
   页脚
   ============================================================ */
.site-foot {
  position: relative;
  margin-top: clamp(3rem, 7vw, 6rem);
  padding-block: clamp(2.2rem, 5vw, 4rem) 1.4rem;
  background: var(--poplar-ink);
  color: rgba(246, 239, 225, 0.86);
  overflow: hidden;
  isolation: isolate;
}

.site-foot::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--dune) 0%,
    var(--poplar) 32%,
    var(--grape) 58%,
    var(--teal) 82%,
    var(--dune) 100%
  );
}

.site-foot__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(700px 320px at 12% 0%, rgba(201, 146, 47, 0.22), transparent 70%),
    radial-gradient(620px 320px at 92% 92%, rgba(46, 115, 112, 0.3), transparent 72%),
    var(--grain-soft);
}

.foot-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.2rem 2rem;
  padding-bottom: clamp(1.4rem, 3vw, 2.4rem);
  border-bottom: 1px solid rgba(246, 239, 225, 0.16);
}

.foot-top__lead { min-width: 0; }

.foot-slogan {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 1rem + 2.6vw, 2.6rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--sand-cream);
}

.foot-sub {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: rgba(240, 180, 74, 0.92);
}

.foot-trail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  max-width: 34rem;
}

.foot-trail__chip {
  padding: 0.28rem 0.62rem;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: rgba(246, 239, 225, 0.82);
  background: rgba(246, 239, 225, 0.05);
  border: 1px solid rgba(246, 239, 225, 0.26);
}

.foot-trail__chip:nth-child(2n) {
  color: #F5BC9B;
  border-color: rgba(217, 96, 44, 0.5);
}

.foot-grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  padding-block: clamp(1.6rem, 3.5vw, 2.8rem);
}

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

.foot-col__title {
  margin-bottom: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--dune);
}

.foot-list {
  display: grid;
  gap: 0.45rem;
}

.foot-list a {
  display: inline-block;
  padding-bottom: 1px;
  color: rgba(246, 239, 225, 0.86);
  font-size: 0.95rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.foot-list a:hover {
  color: var(--glow);
  border-bottom-color: var(--glow);
}

.copy-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  width: 100%;
  max-width: 22rem;
  padding: 0.42rem 0.1rem;
  margin-bottom: 0.2rem;
  background: transparent;
  border: 0;
  border-bottom: 1px dashed rgba(246, 239, 225, 0.3);
  color: var(--sand-cream);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  text-align: left;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.copy-chip:hover {
  color: var(--glow);
  border-bottom-color: var(--glow);
}

.copy-chip__text { overflow-wrap: anywhere; }

.copy-chip__tag {
  flex: none;
  padding: 0.05rem 0.35rem;
  font-family: var(--font-body);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--dune);
  border: 1px solid rgba(201, 146, 47, 0.55);
}

.copy-status {
  min-height: 1.3em;
  margin-top: 0.5rem;
  font-size: 0.76rem;
  color: var(--glow);
}

.foot-addr {
  margin-top: 1rem;
  font-size: 0.86rem;
  line-height: 1.62;
  color: rgba(246, 239, 225, 0.74);
}

.foot-hours {
  margin-top: 0.3rem;
  font-size: 0.78rem;
  color: rgba(246, 239, 225, 0.56);
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(246, 239, 225, 0.16);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  color: rgba(246, 239, 225, 0.68);
}

.foot-copy, .foot-reg, .foot-mail { overflow-wrap: anywhere; }

.foot-legal__links {
  display: flex;
  gap: 1rem;
  margin-left: auto;
}

.foot-legal a {
  color: rgba(246, 239, 225, 0.88);
  text-decoration: none;
  border-bottom: 1px solid rgba(246, 239, 225, 0.32);
}

.foot-legal a:hover {
  color: var(--glow);
  border-bottom-color: var(--glow);
}

/* ============================================================
   动效
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  html[data-js="on"] [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition:
      opacity 0.7s cubic-bezier(0.22, 0.8, 0.28, 1),
      transform 0.7s cubic-bezier(0.22, 0.8, 0.28, 1);
    transition-delay: var(--reveal-delay, 0ms);
  }

  html[data-js="on"] [data-reveal].is-in {
    opacity: 1;
    transform: none;
  }

  [data-roll] > span {
    display: inline-block;
    animation: roll-in 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  }

  @keyframes roll-in {
    from { transform: translateY(0.55em); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }

  .command-bar__glow {
    animation: drift 20s ease-in-out infinite alternate;
  }

  @keyframes drift {
    from { background-position: 0% 0%, 20% 0%; }
    to { background-position: 26% 0%, 4% 0%; }
  }

  .cmd-status__dot {
    animation: pulse 3.2s ease-in-out infinite;
  }

  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(240, 180, 74, 0.22); }
    50% { box-shadow: 0 0 0 6px rgba(240, 180, 74, 0.08); }
  }

  .cmd-nav[data-open="true"] {
    animation: nav-drop 0.26s ease both;
  }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  html { scroll-behavior: auto; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1179px) {
  .cmd-status { display: none; }
  .cmd-nav__link { padding-inline: 0.5rem; font-size: 0.9rem; }
}

@media (max-width: 979px) {
  :root { --bar-h: 58px; }

  .command-bar__inner {
    grid-template-columns: auto 1fr;
    gap: 0.6rem;
  }

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

  .cmd-actions {
    grid-column: 2;
    justify-self: end;
    gap: 0.4rem;
  }

  .version-badge__cap { display: none; }

  .cmd-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    padding: 0.7rem var(--gutter) 1.1rem;
    background: #17301F;
    border-bottom: 3px solid var(--dune);
    box-shadow: 0 24px 40px -26px rgba(10, 8, 6, 0.95);
    max-height: calc(100vh - var(--bar-h));
    overflow-y: auto;
  }

  .cmd-nav[data-open="true"] { display: block; }

  .cmd-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .cmd-nav__item { width: 100%; }

  .cmd-nav__link {
    display: flex;
    width: 100%;
    padding: 0.72rem 0.4rem;
    font-size: 1.04rem;
    background: transparent;
    border-bottom: 1px solid rgba(246, 239, 225, 0.1);
    box-shadow: inset 3px 0 0 0 transparent;
  }

  .cmd-nav__link:hover {
    background: rgba(240, 180, 74, 0.12);
    box-shadow: inset 3px 0 0 0 rgba(217, 96, 44, 0.7);
  }

  .cmd-nav__link[aria-current="page"] {
    background: rgba(240, 180, 74, 0.16);
    box-shadow: inset 3px 0 0 0 var(--poplar);
  }

  .cmd-nav__index { font-size: 0.7rem; }

  .cmd-nav__foot {
    display: block;
    margin-top: 0.95rem;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(246, 239, 225, 0.14);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: rgba(246, 239, 225, 0.55);
  }

  .foot-legal__links {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 479px) {
  .brand__line { display: none; }
  .brand__mark { width: 2.1rem; height: 2.1rem; font-size: 0.95rem; }
  .btn--cmd { padding: 0.38rem 0.6rem; font-size: 0.78rem; }
  .nav-toggle { padding: 0.38rem 0.46rem; }
  .nav-toggle__label { display: none; }
  .version-badge { padding: 0.3rem 0.48rem; }
  .version-badge__ver { font-size: 0.84rem; }
}