/* 玄枢 · 智能刀模 官网 —— 公共样式
   配色沿用品牌：玄墨 #0A0E18 / 鎏金 #C9A45C / 素白 #F4EBD8 */

:root {
  --ink: #0A0E18;
  --ink-2: #0e1421;
  --panel: #111726;
  --gold: #C9A45C;
  --gold-soft: #E7CF9A;
  --paper: #F4EBD8;
  --muted: #8b95a6;
  --muted-2: #5f6878;
  --line: rgba(201, 164, 92, .18);
  --line-soft: rgba(255, 255, 255, .07);
  --radius: 14px;
  --max: 1160px;
  --font: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold-soft); text-decoration: none; }
a:hover { color: #fff; }

img { max-width: 100%; display: block; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

/* ── 顶栏 ─────────────────────────────── */
.site-head {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(10, 14, 24, .82);
  border-bottom: 1px solid var(--line-soft);
}
.site-head .inner {
  display: flex; align-items: center; gap: 26px;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--paper); font-weight: 600; letter-spacing: 2px; }
.brand img { width: 30px; height: 30px; }
.brand em { font-style: normal; color: var(--gold); }
.site-nav { display: flex; gap: 22px; margin-left: auto; }
.site-nav a { color: var(--muted); font-size: 14px; }
.site-nav a:hover, .site-nav a.is-active { color: var(--gold-soft); }
.head-cta {
  margin-left: 8px;
  padding: 8px 16px; border-radius: 999px;
  background: linear-gradient(180deg, #E0BE7B, var(--gold));
  color: #10131c; font-size: 13px; font-weight: 700; letter-spacing: 1px;
}
.head-cta:hover { color: #10131c; filter: brightness(1.05); }

/* ── 通用 ─────────────────────────────── */
.section { padding: 68px 0; border-top: 1px solid var(--line-soft); }
.section:first-of-type { border-top: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 3px; color: var(--gold);
  text-transform: uppercase; margin: 0 0 14px;
}
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); display: inline-block; }
h1, h2, h3 { line-height: 1.3; margin: 0; font-weight: 600; }
h1 { font-size: clamp(30px, 4.2vw, 46px); letter-spacing: 1px; }
h2 { font-size: clamp(22px, 2.6vw, 30px); letter-spacing: 1px; }
h3 { font-size: 17px; }
.lead { color: var(--muted); font-size: 16px; max-width: 62ch; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 30px; }
.section-head p { color: var(--muted); margin: 8px 0 0; }

.btn {
  display: inline-block; padding: 12px 24px; border-radius: 10px;
  background: linear-gradient(180deg, #E0BE7B, var(--gold)); color: #10131c;
  font-weight: 700; letter-spacing: 1px; font-size: 14px;
}
.btn:hover { color: #10131c; filter: brightness(1.05); }
.ghost {
  display: inline-block; padding: 11px 22px; border-radius: 10px;
  border: 1px solid var(--line); color: var(--gold-soft); font-size: 14px;
}
.ghost:hover { border-color: rgba(201, 164, 92, .5); color: #fff; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: linear-gradient(180deg, rgba(20, 27, 43, .7), rgba(13, 18, 30, .7));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin-bottom: 8px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .tag { display: inline-block; font-size: 11px; letter-spacing: 2px; color: var(--gold); margin-bottom: 10px; }

/* ── 首屏 ─────────────────────────────── */
.hero { position: relative; padding: 78px 0 64px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% 40% auto -10%; height: 520px;
  background: radial-gradient(circle at 30% 30%, rgba(201, 164, 92, .16), transparent 62%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; position: relative; }
.hero p.lead { margin: 20px 0 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 12px; color: var(--muted-2); letter-spacing: 1px; }
.hero-visual {
  border-radius: 18px; border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 27, 43, .8), rgba(10, 14, 24, .9));
  padding: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .45);
}
.hero-visual .bar { display: flex; gap: 6px; margin-bottom: 14px; }
.hero-visual .bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(201, 164, 92, .35); }
.hero-visual svg { width: 100%; height: auto; }

/* ── 盒型卡片 ─────────────────────────── */
.types { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.type {
  border: 1px solid var(--line-soft); border-radius: 12px;
  padding: 16px; color: var(--paper); background: rgba(17, 23, 38, .5);
  transition: border-color .18s ease, transform .18s ease;
}
.type:hover { border-color: rgba(201, 164, 92, .45); transform: translateY(-2px); color: #fff; }
.type b { display: block; font-size: 15px; margin-bottom: 4px; }
.type span { color: var(--muted); font-size: 12px; }

/* ── 步骤 ─────────────────────────────── */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.step { position: relative; padding-top: 8px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: block; font-size: 26px; color: rgba(201, 164, 92, .5);
  font-family: Consolas, monospace; margin-bottom: 6px;
}
.step h3 { margin-bottom: 6px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

/* ── 文章卡片 ─────────────────────────── */
.article-card { display: block; color: var(--paper); }
.article-card:hover { color: #fff; }
.article-card h3 { margin-bottom: 8px; }
.article-card p { color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.article-card .more { font-size: 12px; color: var(--gold); letter-spacing: 1px; }

/* ── FAQ ─────────────────────────────── */
.faq details {
  border-bottom: 1px solid var(--line-soft);
  padding: 16px 0;
}
.faq summary {
  cursor: pointer; font-size: 15px; color: var(--paper); list-style: none;
  display: flex; gap: 10px; align-items: flex-start;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "＋"; color: var(--gold); font-size: 14px; line-height: 1.9; }
.faq details[open] summary::before { content: "－"; }
.faq p { color: var(--muted); margin: 10px 0 0 22px; font-size: 14px; }

/* ── 正文页（知识库） ─────────────────── */
.article { max-width: 760px; margin: 0 auto; padding: 64px 0 80px; }
.article h1 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 10px; }
.article .meta { color: var(--muted-2); font-size: 12px; letter-spacing: 1px; margin-bottom: 34px; }
.article h2 { font-size: 21px; margin: 40px 0 12px; }
.article h3 { font-size: 16px; margin: 24px 0 8px; color: var(--gold-soft); }
.article p { margin: 0 0 14px; color: #cfd6e2; }
.article ul, .article ol { margin: 0 0 16px; padding-left: 22px; color: #cfd6e2; }
.article li { margin-bottom: 6px; }
.article table { width: 100%; border-collapse: collapse; margin: 18px 0 22px; font-size: 14px; }
.article th, .article td { border: 1px solid var(--line-soft); padding: 10px 12px; text-align: left; }
.article th { background: rgba(201, 164, 92, .08); color: var(--gold-soft); font-weight: 600; }
.article code { font-family: Consolas, "Cascadia Mono", monospace; background: rgba(255, 255, 255, .06); padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.article blockquote {
  margin: 18px 0; padding: 14px 18px; border-left: 2px solid var(--gold);
  background: rgba(201, 164, 92, .06); color: var(--muted); font-size: 14px;
}
.crumbs { font-size: 12px; color: var(--muted-2); margin-bottom: 22px; letter-spacing: 1px; }
.crumbs a { color: var(--muted); }
.crumbs span { margin: 0 6px; }

/* ── 页脚 ─────────────────────────────── */
.site-foot { border-top: 1px solid var(--line-soft); padding: 40px 0 46px; color: var(--muted-2); font-size: 13px; }
.site-foot .cols { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.site-foot .brand { margin-bottom: 10px; }
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--gold-soft); }
.site-foot ul { list-style: none; padding: 0; margin: 6px 0 0; }
.site-foot li { margin-bottom: 4px; }
.site-foot .col-title { color: var(--paper); font-size: 13px; margin-bottom: 8px; }
.copyright { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ── 响应式 ───────────────────────────── */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .grid-4, .types { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .site-nav { display: none; }
  .grid-2, .grid-3, .grid-4, .types { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

/* ── 盒型详情页（tools/gen-box-pages.js 生成） ───────────── */
.dieline-figure {
  margin: 30px 0 32px; padding: 20px;
  border: 1px solid var(--line-soft); border-radius: 14px;
  background: rgba(255,255,255,.03);
}
.dieline-figure img { display: block; width: 100%; height: auto; max-height: 460px; object-fit: contain; border-radius: 8px; background: #f7f2e6; }
.dieline-figure figcaption { margin-top: 14px; color: var(--muted-2); font-size: 12.5px; line-height: 1.85; }
.answer {
  margin: 0 0 26px; padding: 16px 20px;
  border-left: 2px solid var(--gold); border-radius: 0 10px 10px 0;
  background: rgba(201,164,92,.07);
}
.article .answer p { margin: 0; color: var(--paper); font-size: 15px; line-height: 1.9; }
.article ol { margin: 0 0 16px; padding-left: 22px; }
.article ol li { margin-bottom: 8px; color: #cfd6e2; }
.table-wrap { overflow-x: auto; margin: 16px 0 22px; }

.box-card h3 { margin-bottom: 6px; }
.box-card-data { color: var(--muted-2); font-size: 12px; letter-spacing: .5px; margin-top: 10px !important; }
.box-card-more { color: var(--gold); font-size: 12px; margin-top: 10px !important; }

.box-card { display: flex; flex-direction: column; }
.box-card-more { margin-top: auto !important; }

.related { max-width: 760px; margin: 0 auto; }