/* ==========================================================================
   FLC 启动器 · 宣传网站
   设计语言取自启动器真实界面：主色 #4CBB2F（Minecraft 草绿）
   深色底 #131416 / #202225 / #26292D · 浅色底 #F7F8F9 / #FFFFFF / #EDEFF1
   ========================================================================== */

/* ---------- 1. 变量与主题 ---------- */
:root {
  /* 品牌绿 */
  --brand:        #4CBB2F;
  --brand-lit:    #8BD378;
  --brand-deep:   #378722;
  --brand-dark:   #1B712A;
  --brand-wash:   rgba(76, 187, 47, .12);
  --brand-wash-2: rgba(76, 187, 47, .22);
  --brand-glow:   rgba(76, 187, 47, .35);

  /* 圆角 / 间距 / 动效 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --sect-y: clamp(72px, 9vw, 132px);
  --wrap: 1180px;
  --ease: cubic-bezier(.22, .68, .32, 1);

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

/* 深色（默认，与启动器深色主题一致） */
:root, [data-theme="dark"] {
  --bg:        #131416;
  --bg-2:      #1A1C1F;
  --surface:   #202225;
  --surface-2: #26292D;
  --surface-3: #2E3237;
  --line:      #34383D;
  --line-soft: #2A2E32;
  --txt:       #F1F3F5;
  --txt-2:     #B9BFC6;
  --txt-3:     #7F878F;
  --shadow:    0 18px 46px rgba(0, 0, 0, .52);
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, .38);
  --grid-line: rgba(255, 255, 255, .035);
  color-scheme: dark;
}

/* 浅色（与启动器浅色主题一致） */
[data-theme="light"] {
  --bg:        #EDEFF1;
  --bg-2:      #F7F8F9;
  --surface:   #FFFFFF;
  --surface-2: #FFFFFF;
  --surface-3: #F1F3F5;
  --line:      #D8DDE2;
  --line-soft: #E6E9EC;
  --txt:       #1A1C1F;
  --txt-2:     #4E555C;
  --txt-3:     #868E96;
  --shadow:    0 18px 44px rgba(20, 30, 40, .13);
  --shadow-sm: 0 5px 16px rgba(20, 30, 40, .09);
  --grid-line: rgba(0, 0, 0, .045);
  color-scheme: light;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--txt);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand-lit); }

h1, h2, h3, h4 {
  line-height: 1.25;
  margin: 0 0 .6em;
  font-weight: 700;
  letter-spacing: -.01em;
  /* 中日韩文本没有词间空格，浏览器默认的断行策略会留下孤字或半截短语 */
  text-wrap: balance;
}
p { margin: 0 0 1em; text-wrap: pretty; }
ul { margin: 0; padding: 0; }

::selection { background: var(--brand-wash-2); color: var(--txt); }

/* 行内代码：不撑高行盒，避免正文行距被拉开 */
code {
  font-family: var(--mono);
  font-size: .9em;
  padding: .08em .4em;
  border-radius: 4px;
  background: var(--surface-3);
  color: var(--txt);
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 滚动条：呼应启动器风格 */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb {
  background: var(--surface-3);
  border: 3px solid var(--bg-2);
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: var(--brand-deep); }

/* ---------- 3. 布局工具 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.sect { padding: var(--sect-y) 0; position: relative; }
.sect--tight { padding: clamp(48px, 6vw, 76px) 0; }
.sect--alt { background: var(--bg-2); }
.center { text-align: center; }

.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- 4. 背景装饰 ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 85%);
}
.bg-glow {
  position: fixed;
  top: -320px;
  left: 50%;
  width: min(1100px, 130vw);
  height: 640px;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse at center, var(--brand-glow) 0%, transparent 66%);
  opacity: .5;
  filter: blur(28px);
}
main, header, footer { position: relative; z-index: 1; }

/* ---------- 5. 顶栏 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.nav.is-stuck { box-shadow: var(--shadow-sm); }

.nav__in {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 66px;
}

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; color: var(--txt); }
.brand:hover { color: var(--txt); }
.brand__mark { width: 34px; height: 34px; flex-shrink: 0; }
.brand__txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-size: 19px; font-weight: 700; letter-spacing: .01em; }
.brand__ver { font-size: 11px; color: var(--txt-3); font-family: var(--mono); letter-spacing: .04em; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  list-style: none;
}
.nav__links a {
  display: block;
  padding: 8px 15px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--txt-2);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav__links a:hover { background: var(--surface-2); color: var(--txt); }
.nav__links a[aria-current="page"] {
  background: var(--brand-wash);
  color: var(--brand);
  font-weight: 600;
}

.nav__tools { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.iconbtn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--txt-2);
  cursor: pointer;
  transition: all .2s var(--ease);
  padding: 0;
}
.iconbtn:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-wash); }
.iconbtn svg { width: 18px; height: 18px; }
[data-theme="dark"] .iconbtn .i-sun { display: block; }
[data-theme="dark"] .iconbtn .i-moon { display: none; }
[data-theme="light"] .iconbtn .i-sun { display: none; }
[data-theme="light"] .iconbtn .i-moon { display: block; }

.nav__burger { display: none; }

/* 移动端抽屉 */
@media (max-width: 900px) {
  .nav__links {
    position: fixed;
    inset: 66px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 14px 20px 22px;
    background: var(--bg-2);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .26s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav__links a { padding: 12px 16px; border-radius: var(--r-sm); font-size: 15.5px; }
  .nav__burger { display: grid; }
  .nav__tools { margin-left: auto; }
  .nav__links { margin-left: 0; }
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .18s var(--ease), box-shadow .24s var(--ease),
              background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.btn--brand {
  background: linear-gradient(180deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff;
  box-shadow: 0 6px 20px var(--brand-glow);
}
.btn--brand:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--brand-glow);
}

.btn--ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--txt);
}
.btn--ghost:hover {
  color: var(--brand);
  border-color: var(--brand);
  background: var(--brand-wash);
  transform: translateY(-2px);
}

.btn--lg { padding: 16px 34px; font-size: 16.5px; }
.btn--sm { padding: 9px 16px; font-size: 13.5px; }
.btn--wide { width: 100%; }

/* ---------- 7. 标题块 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  margin-bottom: 20px;
  border: 1px solid var(--brand-wash-2);
  border-radius: 999px;
  background: var(--brand-wash);
  color: var(--brand);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-wash-2);
}

.h-sect { font-size: clamp(27px, 3.7vw, 42px); margin-bottom: .45em; }
.h-sect .accent { color: var(--brand); }
.lead {
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  color: var(--txt-2);
  max-width: 62ch;
  margin-bottom: 0;
}
.center .lead { margin-left: auto; margin-right: auto; }
.sect__head { margin-bottom: clamp(34px, 4.4vw, 56px); }

/* 长标题（含长专有名词）交给浏览器自然断行，避免 text-wrap:balance
   为了平均行宽而在「材质包」这类词中间断开。首屏与页头标题不要用 ch 限宽：
   中文里 1ch 远小于一个汉字的宽度，会提前断行并留下孤字。 */
.h-sect--free { text-wrap: wrap; }

/* ---------- 8. 卡片 ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px;
  transition: border-color .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease);
}
.card--hover:hover {
  border-color: var(--brand);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.card__ic {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  margin-bottom: 16px;
  border-radius: var(--r-sm);
  background: var(--brand-wash);
  border: 1px solid var(--brand-wash-2);
  color: var(--brand);
}
.card__ic svg { width: 23px; height: 23px; }
.card h3 { font-size: 17.5px; margin-bottom: .5em; }
.card p { font-size: 14.5px; color: var(--txt-2); margin: 0; line-height: 1.72; }

/* 与启动器卡片标题一致的绿色竖条 */
.bar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16.5px;
  font-weight: 700;
  margin-bottom: 18px;
}
.bar-title::before {
  content: "";
  width: 3px; height: 17px;
  border-radius: 2px;
  background: var(--brand);
  flex-shrink: 0;
}

/* ---------- 9. 首屏 ---------- */
.hero {
  position: relative;
  padding: clamp(64px, 8.5vw, 118px) 0 clamp(60px, 7vw, 96px);
  overflow: hidden;
}
.hero__in {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1.18fr);
  gap: clamp(30px, 4.5vw, 62px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(34px, 5.4vw, 60px);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -.022em;
}
.hero h1 .accent {
  background: linear-gradient(100deg, var(--brand) 0%, var(--brand-lit) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: clamp(15.5px, 1.6vw, 18px);
  color: var(--txt-2);
  max-width: 52ch;
  margin-bottom: 30px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 13px; margin-bottom: 30px; }

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}
.hero__facts li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--txt-2);
}
.hero__facts svg { width: 15px; height: 15px; color: var(--brand); flex-shrink: 0; }

/* 首屏截图：仿启动器窗口 */
.shot {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.shot__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.shot__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-3); }
.shot__dot:nth-child(1) { background: #F26D6D; }
.shot__dot:nth-child(2) { background: #F2C14E; }
.shot__dot:nth-child(3) { background: var(--brand); }
.shot__title {
  margin-left: 8px;
  font-size: 11.5px;
  color: var(--txt-3);
  font-family: var(--mono);
}
.shot img { width: 100%; height: auto; }
.shot__cap {
  padding: 11px 15px;
  font-size: 12.5px;
  color: var(--txt-3);
  border-top: 1px solid var(--line-soft);
  background: var(--bg-2);
}

/* ---------- 10. 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
.stat { padding: 26px 22px; text-align: center; border-right: 1px solid var(--line-soft); }
.stat:last-child { border-right: 0; }
.stat__n {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--brand);
  font-family: var(--mono);
  letter-spacing: -.02em;
}
.stat__n small { font-size: .48em; font-weight: 600; margin-left: 3px; letter-spacing: 0; }
.stat__l { font-size: 13px; color: var(--txt-3); margin-top: 6px; }

/* 数字滚动：元素始终可见，脚本只在滚动到视口时把数值从 0 数到目标值。
   脚本失效时显示的仍是 HTML 里的最终值，不会留下空白或 0。 */

/* ---------- 11. 界面截图区 ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 30px; }
.tab {
  padding: 9px 19px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--txt-2);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s var(--ease);
}
.tab:hover { border-color: var(--brand); color: var(--brand); }
.tab[aria-selected="true"] {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  box-shadow: 0 5px 16px var(--brand-glow);
}

.panes { position: relative; }
.pane { display: none; animation: fade .38s var(--ease); }
.pane.is-on { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }

.pane__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

/* 功能要点列表 */
.checks { list-style: none; display: grid; gap: 11px; }
.checks li {
  display: flex;
  gap: 11px;
  font-size: 14.5px;
  color: var(--txt-2);
  line-height: 1.6;
}
.checks svg { width: 17px; height: 17px; color: var(--brand); flex-shrink: 0; margin-top: 4px; }
.checks strong { color: var(--txt); font-weight: 600; }

/* ---------- 12. 表格（仿启动器版本表） ---------- */
.tbl-wrap {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface);
}
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th {
  text-align: left;
  padding: 12px 18px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  color: var(--txt-2);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
}
.tbl td {
  padding: 11px 18px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--txt-2);
  vertical-align: top;
}
.tbl tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: var(--brand-wash); }
.tbl .mono { font-family: var(--mono); font-size: 13px; color: var(--txt); }
.tbl .tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--brand-wash);
  color: var(--brand);
  font-size: 11.5px;
  font-weight: 700;
}

/* ---------- 13. 加载器卡片 ---------- */
.loaders { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.loader {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: all .22s var(--ease);
}
.loader:hover { border-color: var(--brand); background: var(--brand-wash); transform: translateY(-3px); }
.loader__hex {
  width: 40px; height: 40px;
  flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 9px;
  background: var(--brand-wash);
  border: 1px solid var(--brand-wash-2);
  color: var(--brand);
  font-weight: 700;
  font-size: 15px;
  font-family: var(--mono);
}
.loader__n { font-size: 15px; font-weight: 700; }
.loader__d { font-size: 12.5px; color: var(--txt-3); }

/* ---------- 14. 代码 / 终端块 ---------- */
.code {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
}
.code__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--txt-3);
  letter-spacing: .05em;
  text-transform: uppercase;
}
.code pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  color: var(--txt-2);
  line-height: 1.75;
  white-space: pre;
}
.code pre code, .code code {
  padding: 0;
  background: none;
  font-size: 1em;
  white-space: pre;
}
.code .k { color: var(--brand); }
.code .c { color: var(--txt-3); }
.code .s { color: var(--brand-lit); }

/* 行内标签（版本号等） */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--brand-wash);
  border: 1px solid var(--brand-wash-2);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
}

/* ---------- 15. 时间线 / 步骤 ---------- */
.steps { display: grid; gap: 0; }
.step {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 20px;
  padding-bottom: 30px;
  position: relative;
}
.step:last-child { padding-bottom: 0; }
.step::before {
  content: "";
  position: absolute;
  left: 28px; top: 50px; bottom: 0;
  width: 1px;
  background: var(--line);
}
.step:last-child::before { display: none; }
.step__n {
  width: 58px; height: 58px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--brand-wash-2);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  z-index: 1;
}
.step h3 { font-size: 18px; margin-bottom: .35em; }
.step p { font-size: 14.5px; color: var(--txt-2); margin: 0; }

/* ---------- 16. 主题对比 ---------- */
.themecmp { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.themecmp figure { margin: 0; }

/* ---------- 17. FAQ ---------- */
.faq { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); overflow: hidden; }
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  padding: 19px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--brand-wash); color: var(--brand); }
.faq summary::after {
  content: "";
  width: 9px; height: 9px;
  flex-shrink: 0;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .26s var(--ease);
}
.faq details[open] summary { color: var(--brand); }
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.faq__body { padding: 0 24px 20px; color: var(--txt-2); font-size: 14.5px; }
.faq__body p:last-child { margin-bottom: 0; }

/* ---------- 18. 下载页 ---------- */
.dl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
  gap: 30px;
  align-items: center;
}
.dl-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.dl-card__ver {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--brand-wash);
  border: 1px solid var(--brand-wash-2);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 16px;
}
.meta { list-style: none; display: grid; gap: 0; margin: 22px 0; border-top: 1px solid var(--line-soft); }
.meta li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
}
.meta dt, .meta .k { color: var(--txt-3); }
.meta .v { color: var(--txt); font-family: var(--mono); font-size: 13.5px; text-align: right; }

.sha {
  display: block;
  padding: 11px 14px;
  border-radius: var(--r-sm);
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--txt-3);
  word-break: break-all;
  line-height: 1.6;
}

.note {
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--brand-wash-2);
  background: var(--brand-wash);
  font-size: 14px;
  color: var(--txt-2);
}
.note svg { width: 19px; height: 19px; color: var(--brand); flex-shrink: 0; margin-top: 2px; }
.note strong { color: var(--txt); }
.note p:last-child { margin-bottom: 0; }

/* ---------- 19. 页脚 ---------- */
.foot {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding: 56px 0 30px;
  margin-top: 0;
}
.foot__in {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 34px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line-soft);
}
.foot h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--txt-3);
  margin-bottom: 14px;
}
.foot ul { list-style: none; display: grid; gap: 9px; }
.foot ul a { font-size: 14px; color: var(--txt-2); }
.foot ul a:hover { color: var(--brand); }
.foot__about p { font-size: 14px; color: var(--txt-2); max-width: 42ch; }
.foot__legal {
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--txt-3);
}
.foot__legal p { margin: 0; }
.foot__legal .disc { max-width: 66ch; line-height: 1.65; }

/* ---------- 20. 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(20px); }
.reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal.is-in { opacity: 1; transform: none; transition: none; }
  .pane { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* ---------- 21. 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 30px;
  background: rgba(8, 10, 12, .9);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .26s var(--ease), visibility .26s var(--ease);
}
.lightbox.is-on { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: min(1400px, 96vw);
  max-height: 88vh;
  border-radius: var(--r-md);
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .7);
}
.lightbox__x {
  position: absolute;
  top: 22px; right: 24px;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .07);
  color: #fff;
  font-size: 21px;
  cursor: pointer;
  line-height: 1;
}
.lightbox__x:hover { background: var(--brand); border-color: var(--brand); }
.shot--zoom img { cursor: zoom-in; }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__in { grid-template-columns: 1fr; }
  .hero__shot { order: -1; }
  .pane__grid { grid-template-columns: 1fr; }
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot__in { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-hero { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  :root { --sect-y: 62px; }
  .wrap { padding: 0 18px; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat { border-bottom: 1px solid var(--line-soft); }
  .stat:nth-child(odd) { border-right: 1px solid var(--line-soft); }
  .stat:nth-child(even) { border-right: 0; }
  .stat:nth-last-child(-n+2) { border-bottom: 0; }
  .loaders { grid-template-columns: 1fr; }
  .themecmp { grid-template-columns: 1fr; }
  .foot__in { grid-template-columns: 1fr; gap: 26px; }
  .hero__cta .btn { flex: 1 1 auto; }
  .card { padding: 21px; }
  .dl-card { padding: 23px; }
  .step { grid-template-columns: 46px minmax(0, 1fr); gap: 15px; }
  .step__n { width: 46px; height: 46px; font-size: 16px; }
  .step::before { left: 23px; top: 40px; }
  .tbl th, .tbl td { padding: 10px 13px; }
}

/* 打印 */
@media print {
  .nav, .foot, .bg-grid, .bg-glow, .tabs { display: none; }
  body { background: #fff; color: #000; }
}