/* ==========================================================================
   AIDA64 汉化版中文站 · 全站样式
   深色科技风 · 品牌色取自官方图标 #BB0000
   ========================================================================== */

/* ---------- 1. 令牌 ---------- */
:root {
  --bg: #070a12;
  --bg-2: #0a0f1b;
  --panel: #0d1424;
  --panel-2: #131c30;
  --panel-3: #182338;
  --line: rgba(148, 163, 184, .14);
  --line-2: rgba(148, 163, 184, .24);
  --txt: #e8edf7;
  --txt-dim: #a3b3ca;
  --txt-mute: #6b7c96;

  --red: #e0161a;
  --red-deep: #bb0000;
  --red-soft: #ff6a6e;
  --cyan: #22d3ee;
  --blue: #3b82f6;
  --violet: #8b5cf6;
  --green: #4ade80;
  --amber: #fbbf24;

  --grad: linear-gradient(135deg, #ff5a5e, #e0161a 52%, #8f0f14);
  --grad-cyan: linear-gradient(135deg, #22d3ee, #3b82f6);
  --grad-text: linear-gradient(100deg, #ffffff 10%, #ffc9cb 55%, #ff6a6e);

  --r-sm: 8px;
  --r: 14px;
  --r-lg: 20px;

  --header-h: 66px;
  --wrap: 1240px;
  --side: 262px;
  --gutter: 24px;
  --gap-doc: 44px;

  --sp-section: 92px;
  --sp-section-sm: 62px;
  --sp-head: 42px;

  --shadow: 0 18px 46px -22px rgba(0, 0, 0, .85);
  --shadow-red: 0 16px 40px -16px rgba(224, 22, 26, .55);

  --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
          system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Consolas,
          "Courier New", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--txt);
  background: var(--bg);
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

/* 背景光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(760px 460px at 12% -6%, rgba(187, 0, 0, .20), transparent 70%),
    radial-gradient(700px 420px at 92% 4%, rgba(34, 211, 238, .11), transparent 72%),
    radial-gradient(900px 620px at 50% 118%, rgba(59, 130, 246, .10), transparent 72%);
}

/* 顶部网格 */
body::after {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 620px;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(760px 520px at 50% 0, #000 0%, transparent 78%);
  mask-image: radial-gradient(760px 520px at 50% 0, #000 0%, transparent 78%);
}

img { max-width: 100%; height: auto; border: 0; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: #7ee7f8; }
h1, h2, h3, h4 { line-height: 1.32; margin: 0 0 .5em; font-weight: 700; letter-spacing: .2px; }
h1 { font-size: clamp(1.72rem, 4.1vw, 2.72rem); }
h2 { font-size: clamp(1.34rem, 2.6vw, 1.88rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin: .34em 0; }
strong { color: #fff; font-weight: 700; }
code { font-family: var(--mono); font-size: .9em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
::selection { background: rgba(224, 22, 26, .38); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--panel-2); color: #fff; padding: 10px 18px; border-radius: 0 0 var(--r-sm) 0;
}
.skip:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 3. 滚动进度条 ---------- */
.progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--grad); z-index: 90; transition: width .08s linear;
}

/* ---------- 4. 头部 ---------- */
.site-head {
  position: sticky; top: 0; z-index: 80;
  background: rgba(7, 10, 18, .78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.head-in {
  display: flex; align-items: center; gap: 22px;
  height: var(--header-h);
}
.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 38px; height: 38px; display: block; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.14; }
.brand-name { font-weight: 800; font-size: 1.05rem; color: #fff; letter-spacing: .4px; }
.brand-sub { font-size: .7rem; color: var(--txt-mute); letter-spacing: .6px; }

.nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 3px; list-style: none; margin: 0; padding: 0; }
.nav-list a {
  display: block; padding: 8px 13px; border-radius: 9px;
  color: var(--txt-dim); font-size: .92rem; font-weight: 600;
  border: 1px solid transparent; transition: .18s;
}
.nav-list a:hover { color: #fff; background: rgba(255, 255, 255, .05); }
.nav-list a[aria-current="page"] {
  color: #fff; background: rgba(224, 22, 26, .16);
  border-color: rgba(224, 22, 26, .42);
}
.head-act { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.burger {
  display: none; width: 42px; height: 38px; border-radius: 10px;
  background: var(--panel-2); border: 1px solid var(--line-2); cursor: pointer;
  padding: 0; place-items: center;
}
.burger span { display: block; width: 18px; height: 2px; background: var(--txt-dim); margin: 3px auto; border-radius: 2px; transition: .2s; }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 11px; border: 1px solid var(--line-2);
  background: var(--panel-2); color: var(--txt); font: inherit; font-size: .94rem;
  font-weight: 700; cursor: pointer; transition: .18s; white-space: nowrap;
  text-align: center;
}
.btn:hover { background: var(--panel-3); color: #fff; transform: translateY(-1px); }
.btn-primary {
  background: var(--grad); border-color: transparent; color: #fff;
  box-shadow: var(--shadow-red);
}
.btn-primary:hover { filter: brightness(1.09); color: #fff; }
.btn-ghost { background: transparent; }
.btn-lg { padding: 14px 28px; font-size: 1.03rem; border-radius: 13px; }
.btn-sm { padding: 8px 14px; font-size: .85rem; border-radius: 9px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- 6. 徽标 / 胶囊 ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 13px; border-radius: 999px; font-size: .78rem; font-weight: 700;
  background: rgba(224, 22, 26, .14); border: 1px solid rgba(224, 22, 26, .34);
  color: #ffb0b2; letter-spacing: .3px;
}
.pill--cyan { background: rgba(34, 211, 238, .12); border-color: rgba(34, 211, 238, .32); color: #8ee9f7; }
.pill--green { background: rgba(74, 222, 128, .12); border-color: rgba(74, 222, 128, .3); color: #97efb4; }
.pill--mute { background: rgba(148, 163, 184, .1); border-color: var(--line-2); color: var(--txt-dim); }

.tags { display: flex; flex-wrap: wrap; gap: 9px; padding: 0; margin: 0; list-style: none; }
.tags li {
  margin: 0; padding: 6px 13px; border-radius: 999px; font-size: .8rem;
  color: var(--txt-dim); background: rgba(255, 255, 255, .045);
  border: 1px solid var(--line); font-weight: 600;
}

/* ---------- 7. 面包屑 ---------- */
.crumbs { padding-top: 20px; font-size: .82rem; color: var(--txt-mute); }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 7px; list-style: none; margin: 0; padding: 0; }
.crumbs li { margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 7px; color: var(--txt-mute); }
.crumbs a { color: var(--txt-mute); }
.crumbs a:hover { color: var(--cyan); }

/* ---------- 8. 分区节奏 ---------- */
.section { padding: var(--sp-section) 0; }
.section--tight { padding: var(--sp-section-sm) 0; }
.band {
  position: relative;
  background: linear-gradient(180deg, rgba(19, 28, 48, .62), rgba(13, 20, 36, .34));
  border-top: 1px solid transparent;
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(90deg, transparent, rgba(224, 22, 26, .35), rgba(34, 211, 238, .22), transparent) 1;
}

/* 标题区三版式 */
.section-head { max-width: 760px; margin: 0 auto var(--sp-head); text-align: center; }
.section-head p { color: var(--txt-dim); margin: 0; }
.section-head .pill { margin-bottom: 16px; }

.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 28px;
  margin-bottom: 34px; padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.sec-head::after {
  content: ""; position: absolute; left: 0; bottom: -1px; width: 148px; height: 2px;
  background: var(--grad);
}
.sec-head h2 { margin: 0; }
.sec-head p { margin: 6px 0 0; color: var(--txt-dim); max-width: 560px; }
.sec-head .sec-act { flex: 0 0 auto; }

.rail-head { position: relative; padding-left: 18px; margin-bottom: 26px; }
.rail-head::before {
  content: ""; position: absolute; left: 0; top: .28em; bottom: .3em; width: 4px;
  border-radius: 3px; background: var(--grad);
}
.rail-head h2, .rail-head h3 { margin: 0; }
.rail-head p { margin: 6px 0 0; color: var(--txt-dim); }

/* ---------- 9. 卡片与网格 ---------- */
.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-asym { grid-template-columns: 1.35fr 1fr; }
.g-side { grid-template-columns: .78fr 1.22fr; }

.card {
  position: relative;
  background: linear-gradient(170deg, rgba(19, 28, 48, .9), rgba(11, 17, 30, .9));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px 22px;
  transition: .2s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(34, 211, 238, .42); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 .45em; }
.card p { color: var(--txt-dim); font-size: .93rem; margin: 0; }
.card p + p { margin-top: .7em; }
.card--plain { background: transparent; border-color: var(--line); }
.card--accent { padding-top: 26px; overflow: hidden; }
.card--accent::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad);
}
.card--cyan::before { background: var(--grad-cyan); }
.card--row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  column-gap: 14px;
  align-items: start;
}
.card--row .ico {
  grid-row: 1 / span 2;
  width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center;
  font-size: 1.16rem; font-weight: 800; color: #fff; background: var(--grad);
  box-shadow: var(--shadow-red);
}
.card--row .ico--cyan { background: var(--grad-cyan); box-shadow: none; }
.card--row h3 { margin: 0 0 4px; font-size: 1.04rem; }
.card--row p { margin: 0; }
.card--row .meta { grid-column: 2; margin-top: 8px; font-size: .8rem; color: var(--txt-mute); }

.card-num {
  position: absolute; top: 16px; right: 20px; font-family: var(--mono);
  font-size: .8rem; color: var(--txt-mute); letter-spacing: 1px;
}

/* 统计条 */
.stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden;
}
.stats > div { background: rgba(10, 15, 27, .92); padding: 22px 20px; }
.stat-n { font-family: var(--mono); font-size: 1.62rem; font-weight: 700; color: #fff; line-height: 1.15; }
.stat-n em { font-style: normal; color: var(--red-soft); font-size: .9rem; margin-left: 2px; }
.stat-l { font-size: .82rem; color: var(--txt-mute); margin-top: 4px; }

/* 泳道 */
.lane { display: grid; gap: 0; }
.lane-item {
  position: relative; display: grid; grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px; padding: 0 0 30px;
}
.lane-item::before {
  content: attr(data-step);
  grid-column: 1; grid-row: 1;
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; font-size: 1rem; color: #fff;
  background: var(--grad); box-shadow: var(--shadow-red); z-index: 1;
}
.lane-item::after {
  content: ""; position: absolute; left: 21px; top: 48px; bottom: 4px; width: 2px;
  background: linear-gradient(180deg, rgba(224, 22, 26, .5), rgba(34, 211, 238, .06));
}
.lane-item:last-child { padding-bottom: 0; }
.lane-item:last-child::after { display: none; }
.lane-item > div { grid-column: 2; }
.lane-item h3 { margin: 8px 0 5px; }
.lane-item p { margin: 0; color: var(--txt-dim); font-size: .94rem; }
.lane-item code { color: #ffc9cb; }

/* 步骤条 */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: st; }
.steps > div {
  position: relative; padding: 22px 18px 20px; border-radius: var(--r);
  background: rgba(13, 20, 36, .86); border: 1px solid var(--line);
}
.steps > div::before {
  counter-increment: st; content: counter(st, decimal-leading-zero);
  font-family: var(--mono); font-size: .76rem; color: var(--red-soft); letter-spacing: 1.4px;
  display: block; margin-bottom: 8px;
}
.steps h3 { font-size: 1rem; margin: 0 0 6px; }
.steps p { margin: 0; font-size: .88rem; color: var(--txt-dim); }

/* ---------- 10. 文档双栏 + 吸顶目录 ---------- */
.doc { display: grid; grid-template-columns: var(--side) minmax(0, 1fr); gap: var(--gap-doc); align-items: start; }
.doc-toc {
  position: sticky; top: calc(var(--header-h) + 24px);
  max-height: calc(100vh - var(--header-h) - 48px);
  overflow-y: auto; overscroll-behavior: contain;
  padding: 18px 16px; border-radius: var(--r);
  background: rgba(13, 20, 36, .72); border: 1px solid var(--line);
  scrollbar-width: thin;
}
.doc-toc::-webkit-scrollbar { width: 6px; }
.doc-toc::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 3px; }
.toc-title {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--txt-mute); margin: 0 0 12px; padding: 0 0 10px;
  border-bottom: 1px solid var(--line);
}
.toc-toggle {
  display: none; width: 100%; align-items: center; justify-content: space-between;
  background: var(--panel-2); border: 1px solid var(--line-2); color: var(--txt);
  font: inherit; font-weight: 700; font-size: .9rem; padding: 12px 15px;
  border-radius: 11px; cursor: pointer;
}
.toc-toggle .ico { transition: transform .2s; font-size: 1.05rem; color: var(--red-soft); }
.toc-toggle[aria-expanded="true"] .ico { transform: rotate(45deg); }
.toc { list-style: none; margin: 0; padding: 0; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0; }
.toc a {
  display: block; padding: 7px 11px; border-radius: 8px; font-size: .87rem;
  color: var(--txt-dim); border-left: 2px solid transparent; transition: .16s;
}
.toc a:hover { background: rgba(255, 255, 255, .05); color: #fff; }
.toc a.is-active {
  color: #fff; background: rgba(224, 22, 26, .14);
  border-left-color: var(--red); font-weight: 700;
}
.doc-main { min-width: 0; }
.doc-main > section { padding: var(--sp-section-sm) 0; }
.doc-main > section:first-child { padding-top: 30px; }
.doc-main > .section > .wrap { max-width: none; padding: 0; }
.doc-main h2, .doc-main h3 { scroll-margin-top: calc(var(--header-h) + 24px); }
.doc-main > section > h2 {
  padding-bottom: 12px; margin-bottom: 22px; border-bottom: 1px solid var(--line);
  position: relative;
}
.doc-main > section > h2::after {
  content: ""; position: absolute; left: 0; bottom: -1px; width: 96px; height: 2px; background: var(--grad);
}
.wrap.prose h2 { position: relative; padding-left: 16px; border: 0; }
.wrap.prose h2::before {
  content: ""; position: absolute; left: 0; top: .22em; bottom: .26em; width: 4px;
  border-radius: 3px; background: var(--grad);
}

/* ---------- 11. 表格 ---------- */
.table-wrap {
  width: 100%; overflow-x: auto; border: 1px solid var(--line);
  border-radius: var(--r); background: rgba(10, 15, 27, .7);
  -webkit-overflow-scrolling: touch;
}
table { width: 100%; border-collapse: collapse; min-width: 620px; font-size: .92rem; }
caption { caption-side: top; text-align: left; padding: 14px 18px 0; color: var(--txt-mute); font-size: .82rem; }
th, td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th {
  background: rgba(19, 28, 48, .95); color: #fff; font-size: .84rem; font-weight: 700;
  letter-spacing: .4px; white-space: nowrap; position: relative;
}
thead th::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 0; height: 1px; background: linear-gradient(90deg, rgba(224,22,26,.6), rgba(34,211,238,.3), transparent); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(255, 255, 255, .022); }
td code { color: #ffc9cb; }
.t-yes { color: var(--green); font-weight: 700; }
.t-no { color: var(--txt-mute); }
.t-mid { color: var(--amber); font-weight: 700; }

/* ---------- 12. 代码块 / 复制 ---------- */
.code {
  position: relative; background: #06090f; border: 1px solid var(--line-2);
  border-radius: 11px; margin: 0 0 16px; overflow: hidden;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 14px; background: rgba(19, 28, 48, .7);
  border-bottom: 1px solid var(--line); font-size: .8rem; color: var(--txt-mute);
  font-family: var(--mono); letter-spacing: .4px;
}
.code pre { margin: 0; padding: 15px 16px; overflow-x: auto; font-family: var(--mono); font-size: .86rem; line-height: 1.7; color: #cfe3f5; }
.code pre code { background: none; padding: 0; border: 0; }
.copy {
  display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; border-radius: 7px;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line-2); color: var(--txt-dim);
  font: inherit; font-size: .76rem; cursor: pointer; transition: .16s; white-space: nowrap;
}
.copy:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.copy.is-done { color: var(--green); border-color: rgba(74, 222, 128, .4); }
:not(pre) > code {
  background: rgba(255, 255, 255, .07); border: 1px solid var(--line);
  padding: 1px 6px; border-radius: 5px; color: #ffc9cb;
}

/* ---------- 13. 手风琴 FAQ ---------- */
.acc { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: rgba(10, 15, 27, .6); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-item:last-child { border-bottom: 0; }
.acc-q {
  width: 100%; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 17px 20px; background: none; border: 0; color: var(--txt); font: inherit;
  font-weight: 700; font-size: 1rem; text-align: left; cursor: pointer; transition: .16s;
}
.acc-q:hover { background: rgba(255, 255, 255, .032); color: #fff; }
.acc-q .ico {
  flex: 0 0 auto; width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center;
  background: rgba(224, 22, 26, .16); color: var(--red-soft); font-size: .95rem;
  transition: transform .22s; margin-top: 2px;
}
.acc-q[aria-expanded="true"] { color: #fff; }
.acc-q[aria-expanded="true"] .ico { transform: rotate(45deg); background: var(--red); color: #fff; }
.acc-a { padding: 0 20px 20px; color: var(--txt-dim); font-size: .94rem; }
.acc-a > *:last-child { margin-bottom: 0; }
.acc-a[hidden] { display: none; }

/* ---------- 14. 首页 Hero ---------- */
.hero { padding: 68px 0 74px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 54px; align-items: center; }
.hero h1 { margin: 20px 0 18px; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lede { font-size: 1.06rem; color: var(--txt-dim); max-width: 560px; margin-bottom: 26px; }
.hero-act { display: flex; flex-wrap: wrap; gap: 13px; margin-bottom: 24px; }
.hero-note { font-size: .86rem; color: var(--txt-mute); }
.hero-note strong { color: var(--red-soft); }

.hero-visual { position: relative; }
.panel-shot {
  border-radius: var(--r-lg); border: 1px solid var(--line-2);
  background: linear-gradient(165deg, #101a2e, #0a1120);
  padding: 18px; box-shadow: var(--shadow);
}
.shot-bar { display: flex; align-items: center; gap: 7px; margin-bottom: 14px; }
.shot-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--panel-3); display: block; }
.shot-bar i:first-child { background: var(--red); }
.shot-bar i:nth-child(2) { background: var(--amber); }
.shot-bar i:nth-child(3) { background: var(--green); }
.shot-bar span { margin-left: auto; font-family: var(--mono); font-size: .72rem; color: var(--txt-mute); }
.shot-body { display: grid; gap: 12px; }
.shot-row { display: grid; grid-template-columns: 116px minmax(0, 1fr) 62px; gap: 12px; align-items: center; font-size: .84rem; }
.shot-row span { color: var(--txt-mute); }
.bar { height: 8px; border-radius: 999px; background: rgba(255, 255, 255, .07); overflow: hidden; }
.bar em { display: block; height: 100%; border-radius: 999px; background: var(--grad-cyan); }
.bar--hot em { background: var(--grad); }
.bar--warm em { background: linear-gradient(90deg, #fbbf24, #f97316); }
.shot-row b { font-family: var(--mono); color: #fff; font-weight: 700; text-align: right; font-size: .82rem; }
.shot-foot { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); font-size: .76rem; color: var(--txt-mute); display: flex; justify-content: space-between; gap: 10px; }

/* ---------- 15. 下载页 ---------- */
.page-head { padding: 46px 0 24px; }
.page-head h1 { margin: 16px 0 14px; }
.page-head .lede { color: var(--txt-dim); max-width: 780px; font-size: 1.02rem; }

.notice {
  display: flex; gap: 14px; padding: 16px 18px; border-radius: var(--r);
  background: rgba(224, 22, 26, .1); border: 1px solid rgba(224, 22, 26, .34);
  color: #ffd0d1; font-size: .92rem; margin: 22px 0 0;
}
.notice--cyan { background: rgba(34, 211, 238, .08); border-color: rgba(34, 211, 238, .3); color: #c9f2f9; }
.notice--mute { background: rgba(148, 163, 184, .07); border-color: var(--line-2); color: var(--txt-dim); }
.notice b { color: #fff; }
.notice .nico { flex: 0 0 auto; font-weight: 800; color: var(--red-soft); }
.notice--cyan .nico { color: var(--cyan); }
.notice--mute .nico { color: var(--txt-mute); }
.notice p { margin: 0; }
.notice p + p { margin-top: 6px; }

.dl-hero {
  display: grid; grid-template-columns: 1.22fr .78fr; gap: 0;
  border: 1px solid var(--line-2); border-radius: var(--r-lg); overflow: hidden;
  background: linear-gradient(150deg, rgba(28, 16, 22, .95), rgba(10, 16, 30, .95));
  margin-top: 26px;
}
.dl-hero-lead { padding: 34px 32px; }
.dl-hero-lead h2 { margin: 14px 0 10px; }
.dl-hero-lead > p { color: var(--txt-dim); font-size: .95rem; }
.dl-hero-act { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 20px; }
.dl-hero-meta { display: flex; flex-wrap: wrap; gap: 9px; }
.dl-hero-meta span {
  padding: 5px 12px; border-radius: 999px; font-size: .78rem; font-weight: 600;
  background: rgba(255, 255, 255, .05); border: 1px solid var(--line); color: var(--txt-dim);
}
.dl-hero-side {
  padding: 26px 24px; border-left: 1px solid var(--line);
  background: rgba(7, 11, 20, .66); display: flex; flex-direction: column; justify-content: center; gap: 12px;
}
.dl-hero-side .code { margin: 0; }
.dl-hero-side p { font-size: .82rem; color: var(--txt-mute); margin: 0; }

.files { display: grid; gap: 12px; }
.files-row {
  display: grid; grid-template-columns: 258px minmax(0, 1fr); gap: 20px;
  padding: 17px 20px; border: 1px solid var(--line); border-radius: var(--r);
  background: rgba(11, 17, 30, .72); align-items: start;
}
.files-row h3 { margin: 0; font-size: .98rem; font-family: var(--mono); color: #ffd5d6; font-weight: 700; }
.files-row p { margin: 0; font-size: .9rem; color: var(--txt-dim); }

.dl-card { position: relative; }
.dl-card.featured { border-color: rgba(224, 22, 26, .48); box-shadow: 0 0 0 1px rgba(224, 22, 26, .18) inset; }
.dl-card .flag {
  position: absolute; top: -11px; left: 22px; padding: 3px 12px; border-radius: 999px;
  background: var(--grad); color: #fff; font-size: .72rem; font-weight: 700; letter-spacing: .6px;
}
.dl-card ul { padding-left: 1.1em; margin: 12px 0 16px; font-size: .89rem; color: var(--txt-dim); }

/* ---------- 16. 下载弹窗 ---------- */
body.dl-lock { overflow: hidden; }
.dl-modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 18px; }
.dl-modal[hidden] { display: none; }
.dl-modal-mask { position: absolute; inset: 0; background: rgba(3, 6, 12, .74); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.dl-modal-box {
  position: relative; width: 100%; max-width: 780px;
  max-height: calc(100vh - 36px); overflow-y: auto;
  background: linear-gradient(165deg, #131c30, #0a101d);
  border: 1px solid var(--line-2); border-radius: var(--r-lg);
  box-shadow: 0 34px 80px -30px rgba(0, 0, 0, .9);
  padding: 30px 30px 24px;
  animation: dlIn .22s ease-out;
}
@keyframes dlIn { from { opacity: 0; transform: translateY(14px) scale(.985); } }
.dl-modal-x {
  position: absolute; top: 14px; right: 16px; width: 34px; height: 34px; border-radius: 9px;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line-2);
  color: var(--txt-dim); font-size: 1.2rem; line-height: 1; cursor: pointer; transition: .16s;
}
.dl-modal-x:hover { background: rgba(224, 22, 26, .24); color: #fff; }
.dl-modal-head { text-align: center; margin-bottom: 22px; }
.dl-modal-head h2 { margin: 12px 0 8px; }
.dl-modal-head p { color: var(--txt-dim); font-size: .92rem; margin: 0; }
.dl-modal-body { display: grid; grid-template-columns: 296px minmax(0, 1fr); gap: 24px; align-items: center; }
.dl-modal-qr { text-align: center; }
.qr-card {
  display: inline-block; padding: 14px; border-radius: var(--r);
  background: #fff; border: 1px solid var(--line-2); line-height: 0;
}
.qr-card--lg img { width: 210px; height: 210px; display: block; }
.dl-modal-qr p { margin: 12px 0 0; font-size: .84rem; color: var(--txt-mute); }
.dl-modal-act { display: flex; flex-direction: column; gap: 11px; }
.dl-mini { list-style: none; margin: 4px 0 0; padding: 0; }
.dl-mini li {
  position: relative; padding-left: 20px; font-size: .84rem; color: var(--txt-mute); margin: 0 0 5px;
}
.dl-mini li::before { content: "✓"; position: absolute; left: 0; color: var(--red-soft); font-weight: 800; }
.dl-modal-foot {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: .78rem; color: var(--txt-mute);
}

/* ---------- 17. 版本时间线 ---------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, rgba(224, 22, 26, .6), rgba(34, 211, 238, .18), transparent); }
.tl-item { position: relative; padding: 0 0 34px; }
.tl-item::before {
  content: ""; position: absolute; left: -27px; top: 9px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--panel-2); border: 2px solid var(--red);
  box-shadow: 0 0 0 4px rgba(224, 22, 26, .12);
}
.tl-item--cyan::before { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(34, 211, 238, .12); }
.tl-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.tl-head h3 { margin: 0; font-family: var(--mono); font-size: 1.06rem; color: #fff; }
.tl-date { font-size: .82rem; color: var(--txt-mute); font-family: var(--mono); }
.tl-body { color: var(--txt-dim); font-size: .93rem; }
.tl-body ul { margin: 8px 0 0; }
.legend { display: flex; flex-wrap: wrap; gap: 18px; font-size: .82rem; color: var(--txt-mute); margin-bottom: 26px; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 10px; height: 10px; border-radius: 50%; display: block; background: var(--red); }
.legend i.c { background: var(--cyan); }

/* ---------- 18. 灯箱 ---------- */
.lb { position: fixed; inset: 0; z-index: 210; display: grid; place-items: center; padding: 22px; }
.lb[hidden] { display: none; }
.lb-mask { position: absolute; inset: 0; background: rgba(3, 6, 12, .86); }
.lb-box { position: relative; max-width: min(1180px, 96vw); max-height: calc(100vh - 44px); overflow: auto; }
.lb-box img { display: block; max-width: 100%; height: auto; border-radius: 10px; }
.lb-x { position: absolute; top: -14px; right: -14px; width: 38px; height: 38px; border-radius: 50%; background: var(--grad); border: 0; color: #fff; font-size: 1.2rem; cursor: pointer; }
.lb-cap { margin: 12px 0 0; text-align: center; font-size: .86rem; color: var(--txt-dim); }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; align-items: start; }
.shots--mid { max-width: 780px; }
.shot-card { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: rgba(11, 17, 30, .7); }
.shot-card button { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; }
.shot-card img { display: block; width: 100%; }
.shot-card figcaption { padding: 12px 15px; font-size: .84rem; color: var(--txt-dim); }

/* ---------- 19. 相关阅读 / CTA ---------- */
.related { padding: 44px 0 0; margin-top: 20px; border-top: 1px solid var(--line); }
.related h2 { font-size: 1.16rem; margin-bottom: 18px; }
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.related-grid a {
  display: block; padding: 16px 18px; border-radius: var(--r);
  background: rgba(13, 20, 36, .8); border: 1px solid var(--line); transition: .18s;
}
.related-grid a:hover { border-color: rgba(34, 211, 238, .42); transform: translateY(-3px); }
.related-grid b { display: block; color: #fff; font-size: .95rem; margin-bottom: 4px; }
.related-grid span { font-size: .82rem; color: var(--txt-mute); }

.cta {
  border-radius: var(--r-lg); padding: 40px 38px; text-align: center;
  background:
    radial-gradient(620px 300px at 50% 0, rgba(224, 22, 26, .22), transparent 70%),
    linear-gradient(165deg, rgba(19, 28, 48, .95), rgba(9, 14, 26, .95));
  border: 1px solid var(--line-2);
}
.cta h2 { margin: 0 0 12px; }
.cta p { color: var(--txt-dim); max-width: 640px; margin: 0 auto 22px; }
.cta-act { display: flex; flex-wrap: wrap; gap: 13px; justify-content: center; }

/* ---------- 20. 页脚 ---------- */
.site-foot { margin-top: 84px; border-top: 1px solid var(--line); background: rgba(6, 9, 16, .8); padding: 54px 0 26px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 34px; }
.foot-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.foot-brand img { width: 36px; height: 36px; }
.foot-brand b { color: #fff; font-size: 1rem; }
.foot-desc { font-size: .87rem; color: var(--txt-mute); max-width: 330px; }
.foot-col h4 { font-size: .84rem; letter-spacing: 1.2px; text-transform: uppercase; color: var(--txt-mute); margin: 0 0 14px; font-weight: 700; }
.foot-col ul { list-style: none; margin: 0; padding: 0; }
.foot-col li { margin: 0 0 9px; }
.foot-col a { color: var(--txt-dim); font-size: .89rem; }
.foot-col a:hover { color: var(--cyan); }
.foot-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px;
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: .8rem; color: var(--txt-mute);
}
.foot-bottom p { margin: 0; }
.foot-meta { display: flex; flex-wrap: wrap; gap: 16px; }

/* 回顶 */
.to-top {
  position: fixed; right: 22px; bottom: 24px; z-index: 70;
  width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2);
  background: rgba(19, 28, 48, .92); color: var(--txt-dim); font-size: 1.1rem;
  cursor: pointer; display: grid; place-items: center; opacity: 0; visibility: hidden;
  transition: .2s; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.to-top.is-on { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--red); color: #fff; border-color: transparent; }

/* ---------- 21. 404 ---------- */
.err-page { min-height: 68vh; display: grid; place-items: center; text-align: center; padding: 60px 0; }
.err-code { font-family: var(--mono); font-size: clamp(4rem, 15vw, 8rem); font-weight: 700; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --sp-section: 72px; --sp-section-sm: 52px; --gap-doc: 32px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .nav-list a { padding: 8px 10px; font-size: .88rem; }
}

@media (max-width: 1020px) {
  .doc { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .doc-toc {
    position: static; max-height: none; overflow: visible; padding: 0;
    background: none; border: 0; margin-bottom: 8px;
  }
  .toc-title { display: none; }
  .toc-toggle { display: flex; }
  .toc { margin-top: 12px; padding: 10px; background: rgba(13, 20, 36, .8); border: 1px solid var(--line); border-radius: var(--r); }
  .toc[hidden] { display: none; }
  .doc-main > section:first-child { padding-top: 24px; }
}

@media (max-width: 900px) {
  :root { --sp-section: 60px; --sp-section-sm: 46px; --sp-head: 30px; --gutter: 18px; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; z-index: 75;
    background: rgba(7, 10, 18, .985);
    -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .26s ease;
  }
  .nav.is-open { max-height: 78vh; overflow-y: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 12px var(--gutter) 20px; }
  .nav-list a { padding: 13px 14px; border-radius: 10px; font-size: .98rem; }
  .burger { display: grid; }
  .head-act .btn { display: none; }
  .g-2, .g-3, .g-asym, .g-side { grid-template-columns: minmax(0, 1fr); }
  .dl-hero { grid-template-columns: minmax(0, 1fr); }
  .dl-hero-side { border-left: 0; border-top: 1px solid var(--line); }
  .files-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .related-grid { grid-template-columns: minmax(0, 1fr); }
  .sec-head { flex-direction: column; align-items: flex-start; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-modal-box { padding: 26px 20px 20px; }
  .dl-modal-body { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .dl-modal-qr img { width: 180px; height: 180px; }
  .timeline { padding-left: 26px; }
}

@media (max-width: 720px) {
  table.stack { min-width: 0; }
  table.stack thead { display: none; }
  table.stack, table.stack tbody { display: block; width: 100%; }
  table.stack tbody tr { display: block; padding: 8px 16px 12px; border-bottom: 1px solid var(--line); }
  table.stack tbody tr:last-child { border-bottom: 0; }
  table.stack tbody td { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 12px; padding: 8px 0; border: 0; }
  table.stack tbody td::before {
    content: attr(data-label); font-size: .78rem; color: var(--txt-mute); font-weight: 600;
  }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .g-4 { grid-template-columns: minmax(0, 1fr); }
  .code pre { white-space: pre-wrap; word-break: break-word; }
  .hero { padding: 44px 0 52px; }
  .cta { padding: 30px 20px; }
  .page-head { padding: 34px 0 18px; }
  .foot-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .btn { width: 100%; }
  .btn-inline, .copy, .toc-toggle { width: auto; }
  .hero-act, .cta-act, .dl-hero-act, .dl-modal-act { flex-direction: column; }
  .card { padding: 20px 17px; }
  .dl-hero-lead { padding: 26px 20px; }
  .stats { grid-template-columns: minmax(0, 1fr); }
  .lane-item { grid-template-columns: 44px minmax(0, 1fr); gap: 13px; }
  .lane-item::before { width: 38px; height: 38px; font-size: .9rem; }
  .lane-item::after { left: 18px; top: 42px; }
  .card--row { grid-template-columns: 38px minmax(0, 1fr); }
  .card--row .ico { width: 38px; height: 38px; }
  .dl-modal { padding: 10px; }
  .dl-modal-box { padding: 22px 16px 18px; border-radius: var(--r); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}