/* dsh-electron-shell 官网 v2 — 深色工程美学:近黑底 + 磷光绿信号色 + 网格/终端质感 */

:root {
  --bg: #0a0b0d;
  --panel: #121316;
  --panel-2: #0e0f12;
  --border: #262a31;
  --text: #fbfbfb;
  --muted: #b8bcc4;
  --faint: #69707a;
  --signal: #00f48e;
  --signal-dim: rgba(0, 244, 142, 0.14);
  --signal-glow: rgba(0, 244, 142, 0.22);
  --amber: #d9a24a;
  --red: #d85c46;
  --blue: #5fa8c7;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
  --ease-reveal: cubic-bezier(0.22, 1, 0.36, 1);
  --r: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--signal); color: #04150d; }

/* 深色滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #23262c; border-radius: 5px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #31353d; }

code { font-family: var(--mono); font-size: 0.9em; background: rgba(0, 244, 142, 0.08); color: var(--signal); padding: 0.1em 0.35em; border-radius: 4px; }

a { color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

/* ══ 入场 reveal(交错)══ */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.56s var(--ease-reveal), transform 0.56s var(--ease-reveal);
  transition-delay: calc(var(--i, 0) * 70ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .hero__grid, .hero__monitor, .btn--glow { animation: none !important; }
}

/* ══ 顶栏 ══ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 0 24px;
  background: rgba(10, 11, 13, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.topbar__brand {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-weight: 700; font-size: 13.5px;
  text-decoration: none; letter-spacing: 0.02em;
}
.topbar__brand img { border-radius: 5px; display: block; }
.topbar__nav { display: flex; gap: 2px; flex: 1; }
.topbar__nav a {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--faint); text-decoration: none;
  padding: 5px 12px; border-radius: 6px;
  transition: color 0.15s ease;
}
.topbar__nav a:hover { color: var(--signal); }
.topbar__right { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  color: var(--muted); background: transparent;
  border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 12px; cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lang-toggle:hover { color: var(--signal); border-color: var(--signal); }
.gh-chip {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--faint); text-decoration: none;
  padding: 5px 11px; border: 1px solid var(--border); border-radius: 999px;
  font-family: var(--mono);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.gh-chip:hover { color: var(--text); border-color: #3a3f47; }

/* ══ 按钮 ══ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 13.5px; font-weight: 700; text-decoration: none;
  letter-spacing: 0.04em;
  padding: 13px 26px; border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn--primary { background: var(--signal); color: #04150d; }
.btn--primary:hover { background: #4dffb3; }
.btn--glow { animation: cta-breathe 3.4s ease-in-out infinite; }
@keyframes cta-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 244, 142, 0); }
  50% { box-shadow: 0 0 0 7px rgba(0, 244, 142, 0.15); }
}
.btn--ghost { border-color: var(--border); color: var(--muted); background: transparent; }
.btn--ghost:hover { border-color: #3a3f47; color: var(--text); }
.btn--sm { padding: 8px 16px; font-size: 12px; }

/* ══ Hero ══ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
/* 工程网格,缓慢平移 */
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  animation: grid-pan 38s linear infinite;
  mask-image: radial-gradient(90% 80% at 50% 40%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(90% 80% at 50% 40%, #000 30%, transparent 100%);
}
@keyframes grid-pan { to { background-position: 64px 64px; } }

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  width: 100%;
}

.kicker {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em;
  color: var(--signal);
  margin-bottom: 18px;
}
.headline {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.headline em {
  font-style: normal;
  color: var(--signal);
  text-shadow: 0 0 22px rgba(0, 244, 142, 0.35);
}
.subhead { font-size: 16px; color: var(--muted); max-width: 520px; margin-bottom: 30px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.hero__meta {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--faint);
}

/* 浮动监视器 */
.hero__monitor { position: relative; animation: float-y 7s ease-in-out infinite; }
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 四角刻度线 — 蓝图感 */
.tick {
  position: absolute; width: 18px; height: 18px; z-index: 2;
  border: 0 solid var(--signal);
  opacity: 0.75;
}
.tick--tl { top: -9px; left: -9px; border-top-width: 1px; border-left-width: 1px; }
.tick--tr { top: -9px; right: -9px; border-top-width: 1px; border-right-width: 1px; }
.tick--bl { bottom: -9px; left: -9px; border-bottom-width: 1px; border-left-width: 1px; }
.tick--br { bottom: -9px; right: -9px; border-bottom-width: 1px; border-right-width: 1px; }

/* ══ 窗口 ══ */
.window {
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel-2);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.4),
    0 30px 80px rgba(0, 0, 0, 0.55),
    0 0 60px rgba(0, 244, 142, 0.05);
}
.window__titlebar {
  display: flex; align-items: center; gap: 12px;
  height: 40px; padding: 0 14px;
  background: rgba(18, 19, 22, 0.85);
  border-bottom: 1px solid var(--border);
  user-select: none;
}
.lights { display: flex; gap: 8px; }
.lights i { width: 11px; height: 11px; border-radius: 50%; }
.lights .l1 { background: #463b3f; }
.lights .l2 { background: #45413a; }
.lights .l3 { background: #38463f; }
.window__title {
  flex: 1; text-align: center;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em;
  color: var(--faint); text-transform: uppercase;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.version-chip {
  font-family: var(--mono); font-size: 11px;
  color: var(--signal); text-decoration: none;
  border: 1px solid rgba(0, 244, 142, 0.3); border-radius: 999px;
  padding: 2px 10px; white-space: nowrap;
  transition: box-shadow 0.2s ease;
}
.version-chip:hover { box-shadow: 0 0 14px rgba(0, 244, 142, 0.25); }

/* Harness 终端界面 */
.harness {
  position: relative;
  display: grid;
  grid-template-columns: 50px 1fr;
  background: #08090b;
  min-height: 330px;
}
.harness__scan {
  position: absolute; inset: 0; pointer-events: none; z-index: 3;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 3px);
}
.harness__rail {
  border-right: 1px solid var(--border);
  padding: 14px 0;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.harness__rail i {
  width: 20px; height: 20px; border-radius: 5px;
  background: #16181c;
  box-shadow: inset 0 0 0 1px var(--border);
}
.harness__rail i:first-child { background: var(--signal); box-shadow: 0 0 12px rgba(0, 244, 142, 0.4); }
.harness__main { padding: 18px 22px 20px; display: flex; flex-direction: column; gap: 10px; }
.harness__header {
  font-family: var(--mono); font-size: 11px; color: var(--faint);
  letter-spacing: 0.16em;
  padding-bottom: 10px; border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.harness__header span { color: var(--signal); }
.msg { font-size: 13px; line-height: 1.55; max-width: 92%; }
.msg--user {
  align-self: flex-end;
  background: #16181c; color: #d6dae0;
  border: 1px solid var(--border);
  padding: 8px 12px; border-radius: 9px 9px 3px 9px;
}
.msg--agent { color: var(--muted); }
.msg--agent b { color: var(--signal); font-weight: 600; }
.msg--tool {
  font-family: var(--mono); font-size: 11.5px; color: var(--faint);
  padding-left: 12px; border-left: 2px solid var(--border);
}
.harness__input {
  margin-top: auto;
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: 7px;
  padding: 11px 14px;
  font-family: var(--mono);
}
.prompt { color: var(--signal); font-size: 13px; }
.cursor {
  width: 8px; height: 15px; background: var(--signal);
  box-shadow: 0 0 8px rgba(0, 244, 142, 0.6);
  animation: blink 1.1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ══ 区块骨架 ══ */
.section { padding: 84px 0 0; }
.sec-marker {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  color: var(--signal); text-transform: uppercase;
  margin-bottom: 12px;
}
.sec-title {
  font-size: 30px; font-weight: 800; letter-spacing: -0.015em;
  max-width: 18ch; margin-bottom: 18px;
}
.sec-lead { color: var(--muted); margin-bottom: 30px; max-width: 620px; font-size: 15px; }

/* ══ 面板 ══ */
.panel {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--panel);
  overflow: hidden;
}
.panel__head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 13px 22px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.panel__label {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--faint);
}
.release-meta { font-family: var(--mono); font-size: 11.5px; color: var(--signal); letter-spacing: 0.04em; white-space: nowrap; }

/* ══ 下载矩阵 ══ */
.platform-group + .platform-group { border-top: 1px solid var(--border); }
.platform-group__head {
  display: flex; align-items: baseline; gap: 12px;
  padding: 20px 22px 4px;
}
.platform-group__head h3 { font-size: 16px; font-weight: 700; }
.platform-group__head span { font-family: var(--mono); font-size: 11.5px; color: var(--faint); letter-spacing: 0.03em; }
.asset-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center; gap: 16px;
  padding: 13px 22px;
}
.asset-row + .asset-row { border-top: 1px dashed var(--border); }
.asset-row__name {
  font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.asset-row__meta {
  font-family: var(--mono); font-size: 11.5px; color: var(--faint);
  white-space: nowrap; text-align: right;
}
.asset-row__actions { display: flex; gap: 8px; align-items: center; }
.src-badge {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
  padding: 2px 8px; border-radius: 4px;
  white-space: nowrap;
}
.src-badge--gc { color: var(--signal); background: rgba(0, 244, 142, 0.1); }
.src-badge--gh { color: var(--faint); background: rgba(255, 255, 255, 0.05); }
.dl-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--signal); color: #04150d;
  font-family: var(--mono); font-size: 12px; font-weight: 700; text-decoration: none;
  letter-spacing: 0.05em;
  padding: 7px 14px; border-radius: 6px;
  transition: background-color 0.15s ease, box-shadow 0.2s ease;
}
.dl-btn:hover { background: #4dffb3; box-shadow: 0 0 16px rgba(0, 244, 142, 0.3); }
.dl-btn--alt { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.dl-btn--alt:hover { color: var(--text); border-color: #3a3f47; box-shadow: none; background: transparent; }
.platform-note { font-size: 12.5px; color: var(--faint); padding: 2px 22px 16px; }
.asset-fallback { padding: 26px 22px; color: var(--muted); }
.asset-fallback a { color: var(--signal); }

/* 命令行块 */
.cmdline {
  margin: 20px 22px 6px;
  display: flex; align-items: center; gap: 12px;
  background: #08090b; border: 1px solid var(--border); border-radius: 8px;
  padding: 13px 16px;
}
.cmdline__prompt { color: var(--signal); font-family: var(--mono); font-size: 14px; }
.cmdline code {
  flex: 1; background: none; padding: 0;
  color: var(--muted); font-size: 13.5px;
  overflow-x: auto; white-space: nowrap;
}
.copybtn {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--signal); background: none;
  border: 1px solid rgba(0, 244, 142, 0.28); border-radius: 6px;
  padding: 5px 12px; cursor: pointer; white-space: nowrap;
  transition: box-shadow 0.2s ease, color 0.15s ease;
}
.copybtn:hover { box-shadow: 0 0 12px rgba(0, 244, 142, 0.22); }
.copybtn.is-copied { color: var(--amber); border-color: var(--amber); box-shadow: none; }
.note { font-size: 13px; color: var(--faint); padding: 12px 22px 20px; }

/* 全部文件 */
.allfiles { border-top: 1px solid var(--border); margin-top: 14px; }
.allfiles summary {
  padding: 15px 22px; cursor: pointer;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--faint);
  list-style: none;
  transition: color 0.15s ease;
}
.allfiles summary:hover { color: var(--text); }
.allfiles summary::before { content: "+ "; color: var(--signal); }
.allfiles[open] summary::before { content: "− "; }
.allfiles table {
  width: 100%; border-collapse: collapse;
  font-family: var(--mono); font-size: 12px;
}
.allfiles th, .allfiles td {
  text-align: left; padding: 9px 22px;
  border-top: 1px solid var(--border);
  font-weight: 400; color: var(--muted);
}
.allfiles th { color: var(--faint); font-size: 10.5px; letter-spacing: 0.14em; }
.allfiles td a { color: var(--signal); text-decoration: none; }
.allfiles td a:hover { text-decoration: underline; }

/* ══ 特性 Tabs ══ */
.tabs {
  display: flex; gap: 2px;
  padding: 0 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.tab {
  font-family: var(--mono); font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em;
  color: var(--faint); background: none; border: none;
  padding: 14px 16px 12px; cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease;
}
.tab:hover { color: var(--text); }
.tab.is-active { color: var(--signal); border-bottom-color: var(--signal); }
.tab-panels { padding: 28px 24px 32px; }
.tab-panel { display: none; max-width: 660px; }
.tab-panel.is-active { display: block; }
.tab-panel h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.tab-panel p { color: var(--muted); font-size: 15px; }

/* ══ 版本号 ══ */
.version-display { padding: 8px 0 30px; overflow-x: auto; }
.version-display code {
  background: none; padding: 0;
  font-size: clamp(1.7rem, 5.2vw, 3.2rem);
  font-weight: 700; letter-spacing: -0.01em;
  white-space: nowrap;
}
.v-core { color: var(--signal); border-bottom: 4px solid var(--signal); padding-bottom: 2px; text-shadow: 0 0 24px rgba(0, 244, 142, 0.3); }
.v-sep { color: var(--faint); }
.v-shell { color: var(--text); border-bottom: 4px solid #3a3f47; padding-bottom: 2px; }
.version-legend { border-top: 1px solid var(--border); }
.legend-row {
  display: grid; grid-template-columns: 190px 1fr;
  gap: 22px; align-items: start;
  padding: 18px 0; border-bottom: 1px solid var(--border);
}
.legend-row p { color: var(--muted); font-size: 14.5px; }
.legend-row b { color: var(--text); }
.legend-chip { font-family: var(--mono); font-size: 14px; font-weight: 700; background: none; padding: 0; }
.legend-chip--core { color: var(--signal); }
.legend-chip--shell { color: var(--text); }

/* ══ FAQ ══ */
.faq details { border-top: 1px solid var(--border); }
.faq details:last-child { border-bottom: 1px solid var(--border); }
.faq summary {
  padding: 19px 4px; cursor: pointer;
  font-size: 15.5px; font-weight: 600;
  list-style: none; display: flex; gap: 12px;
  transition: color 0.15s ease;
}
.faq summary::before { content: "+"; color: var(--signal); flex-shrink: 0; font-family: var(--mono); }
.faq details[open] summary::before { content: "−"; }
.faq summary:hover { color: var(--signal); }
.faq details p { padding: 0 4px 22px 26px; color: var(--muted); max-width: 720px; font-size: 14.5px; }
.faq details a { color: var(--signal); }

/* ══ 页脚 ══ */
.footer {
  margin-top: 100px;
  border-top: 1px solid var(--border);
  padding: 40px 0 48px;
  background: var(--panel-2);
}
.footer__grid { display: grid; grid-template-columns: 1.2fr 1fr 1.2fr; gap: 28px; }
.footer__brand { font-family: var(--mono); font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.footer__legal, .footer__sync { font-size: 12.5px; color: var(--faint); line-height: 1.75; }
.footer__sync { text-align: right; }
.footer__sync span:last-child { font-family: var(--mono); font-size: 11px; }
.footer__links { display: flex; flex-direction: column; gap: 9px; }
.footer__links a {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em;
  color: var(--faint); text-decoration: none; width: fit-content;
  transition: color 0.15s ease;
}
.footer__links a:hover { color: var(--signal); }

/* ══ 响应式 ══ */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 110px; min-height: 0; }
  .topbar { gap: 14px; }
  .topbar__nav { display: none; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__sync { text-align: left; }
  .legend-row { grid-template-columns: 1fr; gap: 6px; }
  .asset-row { grid-template-columns: 1fr; gap: 8px; }
  .asset-row__meta { text-align: left; }
  .release-meta { display: none; }
}