/* ============================================================
   LayoutSee 官网 · 设计系统
   参考：mimo.xiaomi.com（奶白底 + 1px 细线分格 + 衬线正文 + 粗黑大标题）
   ============================================================ */

:root {
  --bg: #faf7f5;
  --bg-soft: #f3efeb;
  --bg-white: #fffefc;
  --ink: #213547;
  --ink-strong: #14100e;
  --muted: #8a827a;
  --line: rgba(26, 22, 18, 0.5);
  --line-soft: rgba(26, 22, 18, 0.16);
  --accent: #e2492f;
  --gold: #c8a063;
  --pill-dark: #17130f;
  --pill-dark-hover: #000000;
  --serif: "Noto Serif SC", "PT Serif", "Songti SC", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "MiSans", "HarmonyOS Sans SC",
    "Microsoft YaHei", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 1180px;
  --header-h: 64px;
}

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

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; background: none; border: 0; cursor: pointer; color: inherit; }

::selection { background: rgba(226, 73, 47, 0.18); }

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

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

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

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--pill-dark); color: #fff; padding: 10px 16px;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ------------------------------------------------------------
   顶部导航
   ------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 245, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.25s ease;
}
.site-header.scrolled { box-shadow: 0 10px 30px rgba(26, 22, 18, 0.07); }

.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}

.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { height: 34px; width: auto; }
.brand .brand-name {
  font-family: var(--sans); font-weight: 700; font-size: 17px;
  color: var(--ink-strong); letter-spacing: 0.01em;
}

.nav { display: flex; align-items: center; gap: 6px; }
.nav > a, .nav > .nav-dd > button, .nav .lang button {
  font-family: var(--sans); font-size: 14.5px; font-weight: 500;
  color: var(--ink-strong);
  padding: 8px 14px; border-radius: 8px;
  transition: background 0.15s ease;
  display: inline-flex; align-items: center; gap: 5px;
}
.nav > a:hover, .nav > .nav-dd > button:hover { background: rgba(26, 22, 18, 0.05); }

/* 下拉菜单（功能） */
.nav-dd { position: relative; }
.nav-dd .dd-menu {
  position: absolute; top: calc(100% + 6px); right: 0; min-width: 168px;
  background: var(--bg-white);
  border: 1px solid var(--line-soft); border-radius: 12px;
  box-shadow: 0 18px 40px rgba(26, 22, 18, 0.12);
  padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.nav-dd:hover .dd-menu, .nav-dd:focus-within .dd-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dd .dd-menu a {
  display: block; padding: 9px 12px; border-radius: 8px;
  font-family: var(--sans); font-size: 14px; color: var(--ink-strong);
}
.nav-dd .dd-menu a:hover { background: rgba(26, 22, 18, 0.05); }
.caret { width: 9px; height: 9px; border-right: 1.4px solid currentColor; border-bottom: 1.4px solid currentColor; transform: rotate(45deg) translateY(-2px); }

/* 语言切换 */
.lang { position: relative; }
.lang .lang-menu {
  position: absolute; top: calc(100% + 6px); right: 0; min-width: 132px;
  background: var(--bg-white); border: 1px solid var(--line-soft); border-radius: 12px;
  box-shadow: 0 18px 40px rgba(26, 22, 18, 0.12); padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.lang:hover .lang-menu, .lang:focus-within .lang-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.lang .lang-menu span, .lang .lang-menu a {
  display: block; padding: 8px 12px; font-family: var(--sans); font-size: 13.5px;
  border-radius: 8px;
}
.lang .lang-menu a:hover { background: rgba(26, 22, 18, 0.05); }
.lang .lang-menu .soon { color: var(--muted); cursor: default; display: flex; justify-content: space-between; }
.lang .lang-menu .soon em { font-style: normal; font-size: 11.5px; }

/* 黑色胶囊按钮 */
.btn-pill {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--sans); font-weight: 600; font-size: 15px;
  background: var(--pill-dark); color: #fdfbf9;
  border-radius: 999px; padding: 11px 26px;
  transition: background 0.18s ease, transform 0.18s ease;
}
.btn-pill:hover { background: var(--pill-dark-hover); }
.btn-pill .arr { transition: transform 0.18s ease; display: inline-flex; }
.btn-pill:hover .arr { transform: translateX(4px); }
.btn-pill.btn-sm { padding: 8px 20px; font-size: 13.5px; }
/* .nav > a 的深色文字优先级高于 .btn-pill，需显式压回浅色 */
.nav > a.btn-pill, .nav .lang + .btn-pill { color: #fdfbf9; }
.header-cta { margin-left: 8px; }

/* ------------------------------------------------------------
   Hero（首页）
   ------------------------------------------------------------ */
.hero {
  position: relative;
  min-height: clamp(540px, 80vh, 840px);
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.letter-grid {
  position: absolute; inset: 0; overflow: hidden;
  pointer-events: none; user-select: none;
  will-change: transform;
}
.letter-grid span {
  position: absolute;
  font-family: var(--sans); font-weight: 700;
  color: var(--ink-strong);
  opacity: 0.05; /* 静态兜底：动画延迟期内不能全黑 */
  animation: breathe 6s ease-in-out infinite;
}
.letter-grid.grid-sm span { font-weight: 500; font-family: var(--mono); animation-name: breatheSoft; }
@keyframes breathe {
  0%, 100% { opacity: 0.045; }
  50% { opacity: 0.115; }
}
@keyframes breatheSoft {
  0%, 100% { opacity: 0.028; }
  50% { opacity: 0.062; }
}

.hero-inner { position: relative; text-align: center; padding: 0 24px; z-index: 1; }
.hero-inner h1 {
  font-family: var(--sans); font-weight: 700; color: #000;
  font-size: clamp(42px, 7vw, 86px);
  letter-spacing: 0.01em; line-height: 1.15;
}
.hero-sub {
  margin-top: 26px;
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink);
  opacity: 0.85;
}
.hero-sub .en { display: block; margin-top: 6px; font-size: 13px; letter-spacing: 0.22em; color: var(--muted); text-transform: uppercase; }

/* 幕布交互：黑圆裁切层，圆内标题反白（clip-path 由 JS 内联写入） */
.curtain-layer {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  background: #17130f;
  clip-path: circle(0px at 50% 50%);
  -webkit-clip-path: circle(0px at 50% 50%);
  pointer-events: none;
  overflow: hidden;
}
.curtain-layer .letter-grid span { color: #f3ede7; }
.curtain-clone h1 { color: #fdfbf9; }
.curtain-clone .hero-sub { color: rgba(253, 251, 249, 0.82); opacity: 1; }
.curtain-clone .hero-sub .en { color: rgba(253, 251, 249, 0.42); }

.hero-dock-btn {
  position: absolute; left: 50%; bottom: 30px; z-index: 3;
  transform: translateX(-50%);
  font-family: var(--sans); font-size: 13px; font-weight: 600;
  letter-spacing: 0.32em; text-indent: 0.32em;
  color: #fdfbf9;
  padding: 10px 18px;
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}
.hero-dock-btn.show { opacity: 1; visibility: visible; }
.hero-dock-btn:hover { opacity: 0.8; }

/* ------------------------------------------------------------
   双卡片
   ------------------------------------------------------------ */
.duo {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border-bottom: 1px solid var(--line);
}
.duo-card {
  background: var(--bg);
  padding: 44px 48px 38px;
  display: flex; flex-direction: column; gap: 10px;
  transition: background 0.4s ease;
}
.duo-card .kicker, .duo-card h2, .duo-card p { transition: color 0.35s ease; }
.duo-card .duo-art [stroke], .duo-card .duo-art [fill] { transition: stroke 0.35s ease, fill 0.35s ease; }
/* hover 反黑（复刻 MIMO 卡片） */
.duo-card:hover { background: #17130f; }
.duo-card:hover .kicker { color: rgba(253, 251, 249, 0.45); }
.duo-card:hover h2 { color: #fdfbf9; }
.duo-card:hover p { color: rgba(253, 251, 249, 0.72); }
.duo-card:hover .duo-art [stroke] { stroke: rgba(240, 234, 223, 0.38); }
.duo-card:hover .duo-art [fill] { fill: rgba(240, 234, 223, 0.38); }
.duo-card:hover .duo-art [stroke="#c8a063"] { stroke: var(--gold); }
.duo-card:hover .duo-art [fill="#c8a063"] { fill: var(--gold); }
.duo-card .kicker {
  font-family: var(--sans); font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted);
}
.duo-card h2 {
  font-family: var(--sans); font-weight: 700; color: #000;
  font-size: clamp(20px, 2.4vw, 27px); line-height: 1.3;
}
.duo-card p { font-size: 15.5px; color: var(--ink); opacity: 0.82; max-width: 40ch; }
.duo-card .duo-art { margin-top: 26px; align-self: stretch; }
.duo-card .duo-art svg { width: 100%; height: 120px; display: block; }
.duo-card .duo-art .draw { transition: transform 0.5s ease; transform-origin: center; }
.duo-card:hover .draw { transform: translateY(-3px); }

/* ------------------------------------------------------------
   通用区块
   ------------------------------------------------------------ */
.section { border-bottom: 1px solid var(--line); }
.section-head {
  display: flex; align-items: baseline; gap: 32px; flex-wrap: wrap;
  padding-top: 84px; padding-bottom: 56px;
}
.section-head h2 {
  font-family: var(--sans); font-weight: 700; color: #000;
  font-size: clamp(34px, 4.6vw, 56px); line-height: 1.1; letter-spacing: 0.01em;
}
.section-head .desc { font-size: 15.5px; color: var(--ink); opacity: 0.75; max-width: 46ch; }

.footnote {
  padding-top: 22px; padding-bottom: 40px;
  font-size: 13.5px; color: var(--muted);
}
.footnote code {
  font-family: var(--mono); font-size: 12.5px;
  background: rgba(26, 22, 18, 0.055); padding: 2px 7px; border-radius: 5px;
  color: var(--ink);
}
.footnote a { border-bottom: 1px solid var(--line-soft); }
.footnote a:hover { border-color: var(--ink); }

/* ------------------------------------------------------------
   编号列表行（01 / 标题 / →）— 全站核心组件
   ------------------------------------------------------------ */
.rows { border-top: 1px solid var(--line); }
.rows li { border-bottom: 1px solid var(--line); }
.row-link {
  display: grid; grid-template-columns: 96px 1fr 96px;
  align-items: stretch; min-height: 96px;
  transition: background 0.16s ease;
}
.row-link:hover { background: var(--bg-white); }
.row-no {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sans); font-size: 14px; color: var(--muted);
  border-right: 1px solid var(--line);
  transition: color 0.16s ease;
}
.row-link:hover .row-no { color: var(--accent); }
.row-body {
  padding: 22px 40px; display: flex; flex-direction: column; justify-content: center; gap: 4px;
}
.row-body .t {
  font-family: var(--sans); font-weight: 650; color: var(--ink-strong);
  font-size: clamp(17px, 2vw, 21px); line-height: 1.35;
}
.row-body .d { font-size: 14.5px; color: var(--ink); opacity: 0.78; max-width: 72ch; }
.row-body .d code {
  font-family: var(--mono); font-size: 12.5px;
  background: rgba(26, 22, 18, 0.055); padding: 1px 6px; border-radius: 5px;
}
.row-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); font-family: var(--sans); }
.row-arrow {
  display: flex; align-items: center; justify-content: center;
  border-left: 1px solid var(--line);
  color: var(--ink-strong);
}
.row-arrow svg { transition: transform 0.18s ease; }
.row-link:hover .row-arrow svg { transform: translateX(6px); }

/* ------------------------------------------------------------
   工作台 showcase
   ------------------------------------------------------------ */
.showcase { padding-bottom: 26px; }
.showcase img {
  width: 100%; border-radius: 14px;
  border: 1px solid var(--line-soft);
  box-shadow: 0 30px 70px rgba(26, 22, 18, 0.14);
}
.trio {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  margin-bottom: 72px;
}
.trio figure { background: var(--bg-soft); padding: 18px; }
.trio img { border-radius: 8px; border: 1px solid var(--line-soft); width: 100%; }
.trio figcaption {
  padding-top: 12px; font-family: var(--sans); font-size: 13px; color: var(--muted);
  display: flex; justify-content: space-between;
}
.trio figcaption b { color: var(--ink-strong); font-weight: 600; }

/* ------------------------------------------------------------
   MCP 工具分组
   ------------------------------------------------------------ */
.mcp-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: var(--line);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.mcp-cell { background: var(--bg); padding: 26px 34px 28px; transition: background 0.16s ease; }
.mcp-cell:hover { background: var(--bg-white); }
.mcp-cell .g-name {
  font-family: var(--sans); font-weight: 650; color: var(--ink-strong); font-size: 16.5px;
  display: flex; align-items: baseline; justify-content: space-between;
}
.mcp-cell .g-name .g-no { font-size: 12.5px; color: var(--muted); font-weight: 500; }
.mcp-cell .g-desc { font-size: 13.5px; color: var(--muted); margin-top: 2px; }
.mcp-cell .g-tools { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.mcp-cell .tool {
  font-family: var(--mono); font-size: 13px; color: var(--ink-strong);
  border: 1px solid var(--line-soft); border-radius: 999px; padding: 4px 12px;
  background: var(--bg-soft);
}
.mcp-cell .tool.w { border-color: rgba(226, 73, 47, 0.4); color: var(--accent); }
.mcp-note { padding: 20px 0 48px; font-size: 13.5px; color: var(--muted); }

/* ------------------------------------------------------------
   Hero（下载页）
   ------------------------------------------------------------ */
.dl-hero {
  position: relative;
  min-height: clamp(620px, 86vh, 880px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  padding: 90px 24px 70px;
}
.dl-hero h1 {
  font-family: var(--sans); font-weight: 700; color: #000;
  font-size: clamp(34px, 5.2vw, 62px); line-height: 1.28;
  position: relative; z-index: 1;
  text-wrap: balance;
}
.dl-hero .line2 { display: block; }
.type-wrap { position: relative; display: inline-block; }
.type-word {
  font-style: normal; position: relative;
  color: var(--ink-strong);
  display: inline-block; min-width: 4.2em; text-align: center;
}
.type-word::after {
  content: ""; display: inline-block; width: 3px; height: 0.92em;
  background: var(--accent); margin-left: 5px; vertical-align: -0.1em;
  animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }
.type-squiggle {
  position: absolute; left: 50%; transform: translateX(-50%);
  bottom: -18px; width: 150px; color: var(--gold); z-index: -1;
}
.type-en {
  display: block; margin-top: 10px;
  font-family: var(--sans); font-size: 13px; letter-spacing: 0.3em;
  color: var(--muted); text-transform: uppercase;
}
.dl-buttons { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; margin-top: 58px; position: relative; z-index: 1; }
.btn-dl { padding: 15px 34px; font-size: 16px; }
.btn-dl .btn-sub { display: block; font-size: 11.5px; font-weight: 500; opacity: 0.72; margin-top: 1px; }
.btn-dl .os-ic { display: inline-flex; }
.dl-meta { margin-top: 26px; font-size: 13.5px; color: var(--muted); position: relative; z-index: 1; max-width: 60ch; }
.dl-corner {
  position: absolute; right: 22px; bottom: 16px;
  font-size: 12px; color: var(--muted); z-index: 1;
}

/* ------------------------------------------------------------
   macOS 窗口截图
   ------------------------------------------------------------ */
.window-shot { padding: 10px 28px 90px; }
.mac-window {
  max-width: 1060px; margin: 0 auto;
  border: 1px solid var(--line-soft); border-radius: 14px; overflow: hidden;
  box-shadow: 0 40px 90px rgba(26, 22, 18, 0.16);
  background: var(--bg-white);
}
.mac-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid var(--line-soft);
  background: #f6f2ef;
}
.mac-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.mac-bar .r { background: #ff5f57; } .mac-bar .y { background: #febc2e; } .mac-bar .g { background: #28c840; }
.mac-bar .mac-title {
  margin-left: 12px; font-family: var(--sans); font-size: 12.5px; color: var(--muted);
}
.mac-window img { width: 100%; }

/* ------------------------------------------------------------
   下载页特性区块（交替布局）
   ------------------------------------------------------------ */
.feature { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.feature > * { min-width: 0; }
.feature-media { background: var(--bg-soft); display: flex; align-items: center; justify-content: center; padding: 44px; border-right: 1px solid var(--line); }
.feature.flip .feature-media { order: 2; border-right: 0; border-left: 1px solid var(--line); }
.feature-media img { max-height: 480px; width: auto; max-width: 100%; border-radius: 10px; border: 1px solid var(--line-soft); box-shadow: 0 24px 60px rgba(26, 22, 18, 0.13); }
.feature-copy { padding: 64px 64px 56px; display: flex; flex-direction: column; justify-content: center; }
.feature-copy h3 {
  font-family: var(--sans); font-weight: 700; color: #000;
  font-size: clamp(24px, 3vw, 34px); line-height: 1.25;
}
.feature-copy .f-sub { margin-top: 8px; font-size: 15px; color: var(--muted); }
.num-list { margin-top: 30px; }
.num-list li { display: grid; grid-template-columns: 44px 1fr; gap: 4px 0; padding: 16px 0; border-top: 1px solid var(--line-soft); }
.num-list .no { font-family: var(--sans); font-size: 13px; color: var(--muted); padding-top: 3px; }
.num-list .tx { font-size: 15px; color: var(--ink); }
.num-list .tx code { font-family: var(--mono); font-size: 13px; background: rgba(26,22,18,.055); padding: 1px 6px; border-radius: 5px; }

/* ------------------------------------------------------------
   系统要求
   ------------------------------------------------------------ */
.req-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.req-cell { background: var(--bg); padding: 26px 28px 28px; }
.req-cell dt { font-family: var(--sans); font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.req-cell dd { margin-top: 8px; font-family: var(--sans); font-weight: 600; font-size: 16.5px; color: var(--ink-strong); }
.req-cell dd small { display: block; font-weight: 400; font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ------------------------------------------------------------
   从源码运行
   ------------------------------------------------------------ */
.source-block { padding-bottom: 90px; }
.code-panel {
  max-width: 860px; margin: 0 auto;
  background: #191512; color: #f3ede7;
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 30px 70px rgba(26, 22, 18, 0.2);
}
.code-panel .code-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--sans); font-size: 12.5px; color: rgba(243, 237, 231, 0.55);
}
.code-panel pre {
  padding: 26px 28px; overflow-x: auto;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.9;
}
.code-panel .cm { color: rgba(243, 237, 231, 0.45); }
.source-more { text-align: center; margin-top: 26px; font-size: 14px; color: var(--muted); }
.source-more a { border-bottom: 1px solid var(--line-soft); }
.source-more a:hover { border-color: var(--ink); color: var(--ink-strong); }

/* ------------------------------------------------------------
   页脚（浅色版 / 深色版）
   ------------------------------------------------------------ */
.site-footer { padding: 44px 0 40px; }
.footer-light { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer-light .fine { font-family: var(--sans); font-size: 13px; color: var(--muted); }
.footer-light .flinks { display: flex; gap: 22px; font-family: var(--sans); font-size: 13.5px; }
.footer-light .flinks a:hover { color: var(--ink-strong); }

.site-footer-dark { background: #12100d; color: #b8b1a9; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 40px;
  padding: 64px 0 48px;
}
.footer-brand img { height: 38px; }
.footer-brand .fb-line { margin-top: 18px; font-size: 13.5px; line-height: 1.8; opacity: 0.75; max-width: 30ch; }
.footer-col h4 {
  font-family: var(--sans); font-size: 13px; font-weight: 600; color: #f3ede7;
  letter-spacing: 0.06em; margin-bottom: 16px;
}
.footer-col a { display: block; font-family: var(--sans); font-size: 13.5px; padding: 5px 0; opacity: 0.75; }
.footer-col a:hover { opacity: 1; color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0 30px;
  font-family: var(--sans); font-size: 12.5px; opacity: 0.55;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ------------------------------------------------------------
   深度介绍页（blog.html）· 文章排版 — 与全站同一套设计语言
   ------------------------------------------------------------ */
.nav > a.active { color: var(--accent); }

.article-wrap { max-width: 780px; margin: 0 auto; padding: 68px 28px 88px; }

.article-wrap .kicker {
  font-family: var(--sans); font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; gap: 10px; margin-bottom: 26px;
}
.article-wrap .kicker::before { content: ""; width: 22px; height: 1px; background: var(--ink-strong); }

.article-wrap h1 {
  font-family: var(--sans); font-weight: 700; color: var(--ink-strong);
  font-size: clamp(34px, 5.4vw, 52px); line-height: 1.22; letter-spacing: 0.01em;
  margin: 0 0 24px;
}
.standfirst {
  font-size: 18.5px; line-height: 1.9; color: var(--ink);
  border-left: 2px solid var(--ink-strong); padding-left: 18px; margin: 0 0 20px;
}
.standfirst strong { color: var(--ink-strong); }
.article-meta {
  font-family: var(--sans); font-size: 13px; color: var(--muted);
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  padding-bottom: 26px; border-bottom: 1px solid var(--line);
}
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }

.tldr {
  background: var(--bg-white); border: 1px solid var(--line-soft);
  padding: 24px 26px 10px; margin: 36px 0 8px;
}
.tldr-title {
  font-family: var(--sans); font-size: 12px; font-weight: 600;
  letter-spacing: 0.16em; color: var(--accent); margin-bottom: 12px;
}
.tldr ul { margin: 0 0 16px; padding-left: 20px; list-style: disc; }
.tldr li { margin-bottom: 8px; font-size: 16.5px; line-height: 1.85; }

.article-wrap h2 {
  font-family: var(--sans); font-weight: 700; color: var(--ink-strong);
  font-size: clamp(24px, 3.4vw, 30px); line-height: 1.35;
  margin: 64px 0 18px; padding-top: 26px; border-top: 1px solid var(--line);
}
.h2-num {
  display: block; font-family: var(--mono); font-size: 13px; font-weight: 500;
  color: var(--accent); letter-spacing: 0.06em; margin-bottom: 8px;
}
.article-wrap p { margin: 0 0 22px; font-size: 17.5px; line-height: 1.95; }
.article-wrap strong { font-weight: 700; color: var(--ink-strong); }
.hl {
  font-style: normal;
  background: linear-gradient(transparent 62%, rgba(200, 160, 99, 0.38) 62%);
  padding: 0 2px;
}
.article-wrap a { border-bottom: 1px solid var(--line); }
.article-wrap a:hover { border-color: var(--ink-strong); color: var(--ink-strong); }

.article-table-wrap { overflow-x: auto; margin: 28px 0 26px; border-top: 1px solid var(--line); }
.article-table { width: 100%; border-collapse: collapse; font-size: 15.5px; line-height: 1.7; min-width: 560px; }
.article-table th, .article-table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.article-table th { font-family: var(--sans); font-size: 12.5px; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; }
.article-table td:first-child { font-family: var(--sans); font-weight: 600; color: var(--ink-strong); white-space: nowrap; }
.article-table tbody tr:hover { background: var(--bg-white); }

.article-quote {
  margin: 26px 0; padding: 18px 24px;
  background: var(--bg-soft); border-left: 3px solid var(--ink-strong);
  font-size: 17px; line-height: 1.9; color: var(--ink);
}
.article-quote p { margin: 0; font-size: inherit; line-height: inherit; }

.article-wrap pre {
  background: #191512; color: #f3ede7;
  padding: 22px 24px; overflow-x: auto;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.9;
  margin: 26px 0; border-radius: 12px;
}
.article-wrap pre .cm { color: rgba(243, 237, 231, 0.45); }
.article-wrap pre .ok { color: #9fd3a8; }
.article-wrap p code, .article-wrap li code, .tldr li code {
  font-family: var(--mono); font-size: 0.84em;
  background: rgba(26, 22, 18, 0.055); padding: 1px 6px; border-radius: 5px;
  color: var(--ink-strong); word-break: break-word;
}

.article-list { margin: 0 0 24px; padding-left: 22px; list-style: disc; }
.article-list li { margin-bottom: 12px; font-size: 17.5px; line-height: 1.95; }

.steps { list-style: none; padding: 0; margin: 28px 0; counter-reset: step; }
.steps > li {
  counter-increment: step; position: relative;
  padding: 18px 0 18px 62px; border-top: 1px solid var(--line-soft);
  font-size: 17px; line-height: 1.9;
}
.steps > li:last-child { border-bottom: 1px solid var(--line-soft); }
.steps > li::before {
  content: "0" counter(step);
  position: absolute; left: 0; top: 20px;
  font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: 0.06em;
}
.steps > li strong { display: block; font-family: var(--sans); font-size: 17px; margin-bottom: 3px; }
.steps > li pre { margin: 14px 0 4px; }

.article-fig { margin: 34px 0; }
.article-fig img {
  width: 100%; display: block;
  border: 1px solid var(--line-soft); border-radius: 12px;
  box-shadow: 0 24px 60px -28px rgba(26, 22, 18, 0.35);
}
.article-fig figcaption {
  font-family: var(--sans); font-size: 13px; color: var(--muted); margin-top: 12px;
}

.article-cta {
  margin: 56px 0 0; border: 1px solid var(--ink-strong); background: var(--bg-white);
  padding: 30px 30px 26px;
}
.article-cta .cta-title { font-family: var(--sans); font-weight: 700; font-size: 23px; color: var(--ink-strong); margin: 0 0 8px; }
.article-cta .cta-sub { font-size: 15.5px; color: var(--muted); margin: 0 0 20px; }
.article-cta .cta-links { display: flex; flex-wrap: wrap; gap: 10px; }
.article-cta .btn-light {
  display: inline-flex; align-items: center;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  border: 1px solid var(--line); color: var(--ink-strong);
  border-radius: 999px; padding: 11px 22px;
  transition: background 0.18s ease;
}
.article-cta .btn-light:hover { background: var(--bg-soft); }
.article-cta .btn-pill { font-size: 14px; padding: 11px 22px; }

.article-credits {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line-soft);
  font-size: 13.5px; line-height: 1.8; color: var(--muted); font-family: var(--sans);
}

/* 文章页移动端：表格转堆叠卡片 */
@media (max-width: 640px) {
  .article-wrap { padding: 44px 20px 72px; }
  .article-wrap p, .article-list li, .steps > li { font-size: 16.5px; }
  .article-table-wrap { overflow: visible; }
  .article-table { min-width: 0; }
  .article-table thead { display: none; }
  .article-table tbody tr { display: block; padding: 14px 0; border-bottom: 1px solid var(--line-soft); }
  .article-table tbody td { display: block; border: none; padding: 0; }
  .article-table tbody td:first-child { white-space: normal; margin-bottom: 6px; }
  .article-table tbody td[data-label]::before {
    content: attr(data-label); display: block;
    font-family: var(--sans); font-size: 11px; letter-spacing: 0.08em;
    color: var(--muted); margin-bottom: 2px;
  }
}

/* ------------------------------------------------------------
   滚动显现 / 动效
   ------------------------------------------------------------ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .letter-grid span { animation: none !important; opacity: 0.06; }
  .type-word::after { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ------------------------------------------------------------
   响应式
   ------------------------------------------------------------ */
@media (max-width: 960px) {
  .feature { grid-template-columns: 1fr; }
  .feature-media, .feature.flip .feature-media { order: 0; border: 0; border-bottom: 1px solid var(--line); padding: 28px; }
  .feature-media img { max-height: 380px; }
  .feature-copy { padding: 40px 28px 44px; }
  .req-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .mcp-grid { grid-template-columns: 1fr; }
  .trio { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav > a:not(.btn-pill), .nav > .nav-dd { display: none; }
  .nav .lang { display: none; }
  .duo { grid-template-columns: 1fr; }
  .row-link { grid-template-columns: 64px 1fr 64px; min-height: 84px; }
  .row-body { padding: 18px 20px; }
  .section-head { padding-top: 56px; padding-bottom: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .dl-corner { position: static; margin-top: 30px; }
  .req-grid { grid-template-columns: 1fr; }
  .btn-dl { width: min(320px, 84vw); }
}