/**
 * OpenAnyme 官网（openany.me）样式。
 *
 * 自成一套：**不依赖任何构建步骤、不引外部字体/图标/CDN**，所以整个 site/ 目录直接丢到
 * 任意静态托管上就能跑（内网、离线、国内网络都不会因为外链而变慢或空白）。
 * 配色沿用应用内的落地页（深蓝紫底 + #6d5dfc 主色），类名统一 `oa-` 前缀。
 *
 * 断点：1100（三栏 → 两栏）/ 900（导航收起、双栏单列）/ 620（字号与间距收紧）。
 */

:root {
  --oa-bg: #070a16;
  --oa-bg-2: #0c1128;
  --oa-panel: rgba(255, 255, 255, .04);
  --oa-panel-2: rgba(255, 255, 255, .07);
  --oa-line: rgba(255, 255, 255, .1);
  --oa-line-2: rgba(255, 255, 255, .18);
  --oa-text: #e9edf9;
  --oa-muted: #949db8;
  --oa-accent: #6d5dfc;
  --oa-accent-2: #35d3cd;
  --oa-radius: 16px;
  --oa-maxw: 1140px;
}

* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 78px; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 620px at 18% -8%, #2b1f6a55, transparent 62%),
    radial-gradient(900px 520px at 92% 6%, #0d4a5c44, transparent 60%),
    linear-gradient(180deg, var(--oa-bg) 0%, var(--oa-bg-2) 55%, #080b1a 100%);
  background-attachment: fixed;
  color: var(--oa-text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; }
p { margin: 0; }
img { max-width: 100%; height: auto; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; }

/* ---------- 顶部导航 ---------- */
.oa-nav {
  position: sticky; top: 0; z-index: 20;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px;
  padding: 12px max(20px, calc((100% - var(--oa-maxw)) / 2));
  background: rgba(7, 10, 22, .76);
  border-bottom: 1px solid var(--oa-line);
  backdrop-filter: blur(16px) saturate(140%);
}
.oa-brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 750; font-size: 16px; }
.oa-brand-mark { height: 28px; width: auto; max-width: 46px; flex: none; object-fit: contain; display: block; }
.oa-nav-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 2px; }
.oa-nav-links a {
  padding: 7px 10px; border-radius: 9px; color: var(--oa-muted); font-size: 13px; font-weight: 600;
  transition: color .16s ease, background .16s ease;
}
.oa-nav-links a:hover { color: var(--oa-text); background: var(--oa-panel); }
.oa-nav-actions { display: flex; align-items: center; gap: 8px; }

/* ---------- 按钮 ---------- */
.oa-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 16px; border: 1px solid transparent; border-radius: 10px;
  font-size: 13px; font-weight: 650; font-family: inherit; color: var(--oa-text);
  background: transparent; cursor: pointer; white-space: nowrap;
  transition: transform .14s ease, filter .16s ease, background .16s ease, border-color .16s ease;
}
.oa-btn-lg { padding: 12px 22px; font-size: 14px; border-radius: 12px; }
.oa-btn-primary { background: linear-gradient(145deg, #7a6bff, #4b3fd6); color: #fff; box-shadow: 0 10px 26px #6d5dfc3d; }
.oa-btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.oa-btn-outline { border-color: var(--oa-line-2); background: var(--oa-panel); }
.oa-btn-outline:hover { background: var(--oa-panel-2); border-color: #6d5dfc88; }
.oa-lang-btn {
  padding: 7px 12px; border: 1px solid var(--oa-line-2); border-radius: 9px;
  background: var(--oa-panel); color: var(--oa-muted); font: inherit; font-size: 12.5px; font-weight: 650;
  cursor: pointer; transition: color .16s ease, border-color .16s ease, background .16s ease;
}
.oa-lang-btn:hover { color: var(--oa-text); border-color: #6d5dfc88; background: var(--oa-panel-2); }

/* ---------- 版心与通用块 ---------- */
.oa-section { width: 100%; max-width: var(--oa-maxw); margin: 0 auto; padding: 64px 20px; }
.oa-hero-wrap { padding-top: 34px; }
.oa-head { max-width: 760px; margin-bottom: 30px; }
.oa-kicker {
  display: inline-block; margin-bottom: 12px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--oa-line-2); background: var(--oa-panel);
  color: #b6bdd6; font-size: 11.5px; font-weight: 650; letter-spacing: .04em;
}
.oa-head h2 { font-size: clamp(24px, 3.1vw, 34px); }
.oa-head p { margin-top: 12px; color: var(--oa-muted); font-size: 15px; }
.oa-hint { margin-top: 10px; color: var(--oa-muted); font-size: 12.5px; line-height: 1.7; }
.oa-list { margin: 14px 0 0; padding-left: 18px; color: var(--oa-muted); font-size: 13.5px; }
.oa-list li { margin: 7px 0; }
.oa-list li::marker { color: var(--oa-accent-2); }

/* ---------- 首屏 ---------- */
.oa-hero { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, 1fr); gap: 44px; align-items: center; }
.oa-eyebrow {
  display: inline-block; padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--oa-line); background: var(--oa-panel);
  color: #b6bdd6; font-size: 11.5px; font-weight: 650;
}
.oa-hero h1 { margin: 18px 0 0; font-size: clamp(29px, 4.3vw, 48px); line-height: 1.14; letter-spacing: -.02em; }
.oa-hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--oa-accent-2), #9d8cff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.oa-hero-copy > p { margin: 16px 0 0; color: var(--oa-muted); font-size: 15.5px; }
.oa-install-inline {
  display: flex; align-items: center; gap: 10px; margin: 20px 0 0;
  padding: 10px 10px 10px 14px; border: 1px solid var(--oa-line-2); border-radius: 12px;
  background: rgba(0, 0, 0, .3); overflow-x: auto;
}
.oa-install-inline code { font-size: 13px; color: #d8e2ff; white-space: nowrap; }
.oa-copy {
  margin-left: auto; flex: none;
  padding: 6px 12px; border: 1px solid var(--oa-line-2); border-radius: 8px;
  background: var(--oa-panel-2); color: var(--oa-text); font: inherit; font-size: 12px; font-weight: 650;
  cursor: pointer; transition: background .16s ease, color .16s ease;
}
.oa-copy:hover { background: #6d5dfc33; }
.oa-copy.is-done { background: #2fbf7122; border-color: #2fbf7188; color: #7ee2a8; }
.oa-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.oa-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 26px 0 0; padding: 0; list-style: none; }
.oa-stats li { padding: 12px 14px; border: 1px solid var(--oa-line); border-radius: 12px; background: var(--oa-panel); }
.oa-stats strong { display: block; font-size: 15px; font-weight: 750; }
.oa-stats span { display: block; margin-top: 4px; color: var(--oa-muted); font-size: 12px; }

.oa-shot { margin: 0; }
.oa-shot img {
  width: 100%; display: block; border-radius: var(--oa-radius);
  border: 1px solid var(--oa-line-2); background: #0a0e20;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .5);
}
.oa-shot figcaption { margin-top: 10px; color: var(--oa-muted); font-size: 12px; text-align: center; }
.oa-shot-sm img { box-shadow: 0 20px 44px rgba(0, 0, 0, .45); }

/* ---------- 安装 ---------- */
.oa-install-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 20px; align-items: start; }
/* 左栏（两段命令 + 提示）：min-width:0 防止窄屏时那几行长命令把网格撑破 */
.oa-install-main { min-width: 0; }
.oa-code-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.oa-code-os { color: var(--oa-muted); font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.oa-code-row .oa-copy { margin-left: auto; }
.oa-install-grid pre {
  margin: 0 0 18px; padding: 14px 16px; overflow-x: auto;
  border: 1px solid var(--oa-line-2); border-radius: 12px; background: rgba(0, 0, 0, .34);
}
.oa-install-grid pre code { font-size: 12.5px; color: #d8e2ff; white-space: pre; }
.oa-card {
  padding: 18px; border: 1px solid var(--oa-line); border-radius: var(--oa-radius);
  background: var(--oa-panel); backdrop-filter: blur(6px);
}
.oa-card h3 { font-size: 15px; }
.oa-card p { margin: 9px 0 0; color: var(--oa-muted); font-size: 13.5px; }
.oa-req h3 { color: var(--oa-accent-2); }

.oa-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin: 28px 0 0; padding: 0; list-style: none; }
.oa-steps li { padding: 18px; border: 1px solid var(--oa-line); border-radius: var(--oa-radius); background: var(--oa-panel); }
.oa-step-no { display: block; color: var(--oa-accent); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.oa-steps h4 { margin-top: 8px; font-size: 14.5px; }
.oa-steps p { margin-top: 7px; color: var(--oa-muted); font-size: 13px; }

/* ---------- 卡片区 ---------- */
.oa-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.oa-cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- 图文分栏 ---------- */
.oa-split { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.oa-split-rev { grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr); }
.oa-split-copy h2 { font-size: clamp(23px, 3vw, 32px); }
.oa-split-copy > p { margin-top: 14px; color: var(--oa-muted); font-size: 14.5px; }
.oa-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.oa-chips span {
  padding: 5px 11px; border: 1px solid var(--oa-line-2); border-radius: 999px;
  background: var(--oa-panel); color: #c6cde4; font-size: 12px; font-weight: 600;
}

/* ---------- 常见问题 ---------- */
.oa-faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.oa-faq details {
  padding: 16px 18px; border: 1px solid var(--oa-line); border-radius: var(--oa-radius);
  background: var(--oa-panel);
}
.oa-faq summary { cursor: pointer; font-size: 14.5px; font-weight: 650; }
.oa-faq summary::marker { color: var(--oa-accent); }
.oa-faq details[open] summary { color: #cdd5ee; }
.oa-faq details p { margin-top: 10px; color: var(--oa-muted); font-size: 13.5px; }

/* ---------- 结尾 ---------- */
.oa-cta {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 22px; align-items: center;
  padding: 26px; border: 1px solid var(--oa-line-2); border-radius: 20px;
  background: linear-gradient(135deg, #6d5dfc1f, #35d3cd14);
}
.oa-cta h2 { font-size: clamp(21px, 2.6vw, 27px); }
.oa-cta p { margin-top: 10px; color: var(--oa-muted); font-size: 14px; }
.oa-cta-code {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 10px 10px 14px; border: 1px solid var(--oa-line-2); border-radius: 12px;
  background: rgba(0, 0, 0, .34); overflow-x: auto;
}
.oa-cta-code code { font-size: 13px; color: #d8e2ff; white-space: nowrap; }

/* ---------- 页脚 ---------- */
.oa-footer {
  display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between;
  max-width: var(--oa-maxw); margin: 0 auto; padding: 26px 20px 44px;
  border-top: 1px solid var(--oa-line);
}
.oa-footer-brand { display: flex; align-items: center; gap: 12px; }
.oa-footer-brand strong { font-size: 15px; }
.oa-footer-brand p { margin-top: 3px; color: var(--oa-muted); font-size: 12.5px; }
.oa-footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; color: var(--oa-muted); font-size: 12.5px; }

/* ---------- 窄屏 ---------- */
@media (max-width: 1100px) {
  .oa-cards, .oa-cards-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .oa-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .oa-nav { grid-template-columns: auto 1fr; row-gap: 10px; }
  .oa-nav-links { order: 3; grid-column: 1 / -1; justify-content: flex-start; }
  .oa-nav-actions { justify-self: end; }
  .oa-hero, .oa-split, .oa-split-rev, .oa-install-grid, .oa-cta { grid-template-columns: minmax(0, 1fr); }
  .oa-split-rev .oa-shot { order: 2; }
  .oa-hero { gap: 28px; }
  .oa-section { padding: 48px 18px; }
  .oa-cta-code { width: 100%; }
}
@media (max-width: 620px) {
  body { font-size: 14.5px; }
  .oa-cards, .oa-cards-3, .oa-steps, .oa-faq { grid-template-columns: minmax(0, 1fr); }
  .oa-stats { grid-template-columns: minmax(0, 1fr); }
  .oa-brand span { display: none; }
  .oa-kicker { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}