/* ============================================================
   星云盘 · 多页面站点（子页面与共享布局）
   ============================================================ */

html { scroll-behavior: smooth; }

.site { display: flex; flex-direction: column; min-height: 100vh; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
}

[id] { scroll-margin-top: 86px; }
.anchor { height: 0; scroll-margin-top: 86px; }

/* ── 导航补充 ───────────────────────────────────────────── */
.nav-link.active { color: var(--brand); background: var(--active); font-weight: 600; }
.nav-auth { display: flex; align-items: center; gap: 9px; }

.nav-toggle {
  display: none;
  width: 38px; height: 38px; border-radius: 10px;
  place-items: center; color: var(--text-2);
  border: 1px solid var(--border); background: var(--surface-2);
  margin-left: auto;
}
.nav-toggle:hover { color: var(--text); background: var(--surface-3); }

.nav-sheet { display: none; }

@media (max-width: 980px) {
  .nav-toggle { display: grid; }
  .nav-sheet {
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 8px;
    background: var(--solid);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    gap: 2px;
  }
  .nav.menu-open .nav-sheet { display: flex; }
}
.nav-sheet-link {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 13px; border-radius: 10px;
  font-size: 14px; font-weight: 500; color: var(--text-2);
}
.nav-sheet-link:hover { background: var(--hover); color: var(--text); }
.nav-sheet-link.active { background: var(--active); color: var(--brand); font-weight: 600; }
.nav-sheet-link .ico { margin-left: auto; opacity: .5; }

/* ── 页面标题带 ─────────────────────────────────────────── */
.page-band {
  position: relative;
  padding: clamp(48px, 7vw, 92px) 0 clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-band::before {
  content: "";
  position: absolute; inset: -40% -10% auto -10%; height: 130%;
  background: radial-gradient(60% 70% at 22% 0%, rgba(109,140,255,.20), transparent 68%),
              radial-gradient(48% 60% at 82% 12%, rgba(34,211,238,.14), transparent 70%);
  pointer-events: none;
}
.page-band .container { position: relative; display: flex; flex-direction: column; gap: 14px; }
.page-band h1 {
  font-size: clamp(28px, 4.2vw, 46px);
  letter-spacing: -.035em;
  font-weight: 800;
  max-width: 18ch;
}
.page-lead { font-size: clamp(14px, 1.4vw, 16.5px); color: var(--text-2); max-width: 68ch; line-height: 1.8; }
.page-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* ── 首页：价值主张 ─────────────────────────────────────── */
.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); gap: 14px; }
.pillar {
  padding: 24px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 11px;
  transition: transform .22s var(--ease), border-color .22s;
}
.pillar:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.pillar .pi {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand);
  border: 1px solid rgba(109,140,255,.24);
}
.pillar h3 { font-size: 15.5px; }
.pillar p { font-size: 13px; color: var(--text-2); line-height: 1.75; }

.feature-more {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12.5px; font-weight: 600; color: var(--brand);
  margin-top: auto; padding-top: 4px;
}
.feature { color: inherit; }
.section-foot { display: flex; justify-content: center; margin-top: 26px; }

/* ── 首页：站内导览 ─────────────────────────────────────── */
.sitemap { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.sitemap-card {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 20px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .2s var(--ease), border-color .2s, background .2s;
}
.sitemap-card:hover { transform: translateY(-3px); border-color: var(--brand); }
.sitemap-card .si {
  width: 38px; height: 38px; border-radius: 12px; flex: none;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand);
  border: 1px solid rgba(109,140,255,.24);
}
.sitemap-card b { display: flex; align-items: center; gap: 5px; font-size: 14.5px; }
.sitemap-card b .ico { color: var(--muted); transition: transform .2s var(--ease); }
.sitemap-card:hover b .ico { transform: translateX(3px); color: var(--brand); }
.sitemap-card span { display: block; font-size: 12.5px; color: var(--text-2); line-height: 1.7; margin-top: 4px; }

/* ── 首页：架构速览 ─────────────────────────────────────── */
.arch-preview { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: clamp(20px, 3vw, 40px); align-items: start; }
.arch-facts { display: flex; flex-direction: column; gap: 14px; }
.fact { display: flex; gap: 11px; align-items: flex-start; }
.fact-dot {
  width: 8px; height: 8px; border-radius: 50%; flex: none; margin-top: 8px;
  background: var(--grad);
  box-shadow: 0 0 0 4px rgba(109,140,255,.14);
}
.fact b { display: block; font-size: 14px; }
.fact span { font-size: 13px; color: var(--text-2); line-height: 1.7; }

/* ── 页脚 ───────────────────────────────────────────────── */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--solid) 55%, transparent);
  padding: clamp(34px, 5vw, 56px) 0 22px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 44px);
}
.footer-brand { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.footer-brand p { font-size: 13px; color: var(--text-2); line-height: 1.8; max-width: 34ch; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.footer-col h4 { font-size: 12.5px; font-weight: 700; letter-spacing: .04em; margin-bottom: 12px; }
.footer-col ul { display: grid; gap: 9px; }
.footer-col a {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; color: var(--muted);
  transition: color .16s;
}
.footer-col a:hover { color: var(--brand); }
.footer-bottom {
  margin-top: clamp(26px, 4vw, 42px);
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  font-size: 12.5px; color: var(--muted);
}
.footer-status { display: inline-flex; align-items: center; gap: 7px; }
.dot-live {
  width: 7px; height: 7px; border-radius: 50%; background: var(--success); flex: none;
  box-shadow: 0 0 0 3px rgba(61,220,151,.18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ── 锚点快捷导航 ───────────────────────────────────────── */
.quick-nav {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 22px 0 6px;
}
.quick-nav-item {
  display: inline-flex; align-items: center; gap: 7px;
  height: 34px; padding: 0 14px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 13px; font-weight: 500; color: var(--text-2);
  transition: .18s var(--ease);
}
.quick-nav-item:hover { color: var(--brand); border-color: rgba(109,140,255,.4); background: var(--grad-soft); transform: translateY(-1px); }

/* ── 功能页：分组 ───────────────────────────────────────── */
.fg-list { display: flex; flex-direction: column; }
.fg {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(36px, 5vw, 64px) 0;
  border-top: 1px solid var(--border);
}
.fg:first-child { border-top: 0; }
.fg-reverse .fg-copy { order: 2; }
.fg-reverse .fg-visual { order: 1; }

.fg-head { display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 13px; align-items: center; margin-bottom: 22px; }
.fg-num { font-size: 12px; font-weight: 800; letter-spacing: .1em; color: var(--muted); font-variant-numeric: tabular-nums; }
.fg-head .fi {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand);
  border: 1px solid rgba(109,140,255,.24);
}
.fg-head h2 { font-size: clamp(20px, 2.4vw, 26px); letter-spacing: -.02em; }
.fg-head p { font-size: 13.5px; color: var(--text-2); margin-top: 3px; }

.fg-points { display: grid; gap: 16px; }
.fg-points li { display: flex; gap: 11px; align-items: flex-start; }
.fg-check {
  width: 20px; height: 20px; border-radius: 7px; flex: none; margin-top: 2px;
  display: grid; place-items: center;
  background: rgba(61,220,151,.14); color: var(--success);
  border: 1px solid rgba(61,220,151,.3);
}
.fg-points b { display: block; font-size: 14px; }
.fg-points span { font-size: 13px; color: var(--text-2); line-height: 1.75; }

@media (max-width: 900px) {
  .fg { grid-template-columns: minmax(0, 1fr); }
  .fg-reverse .fg-copy { order: 0; }
  .fg-reverse .fg-visual { order: 0; }
  .arch-preview { grid-template-columns: minmax(0, 1fr); }
}

/* ── 功能页：示意小图 ───────────────────────────────────── */
.mini {
  border-radius: var(--r-xl);
  background: var(--surface); border: 1px solid var(--border);
  overflow: hidden; box-shadow: var(--shadow-md);
}
.mini-head {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 15px; font-size: 12.5px; font-weight: 600;
  background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.mini-body { padding: 10px; display: grid; gap: 5px; }
.mini-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 11px; border-radius: 11px;
  background: var(--surface-2); border: 1px solid transparent;
  font-size: 12.5px;
}
.mini-row.done { border-color: rgba(61,220,151,.3); background: rgba(61,220,151,.07); }
.mini-row.lvl1 { margin-left: 16px; }
.mini-row.lvl2 { margin-left: 32px; background: transparent; }
.mini-label { flex: 1; min-width: 0; }
.mini-progress { display: flex; align-items: center; gap: 8px; width: 44%; min-width: 0; }
.mini-bar { flex: 1; min-width: 24px; height: 6px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.mini-bar i { display: block; height: 100%; border-radius: 99px; }
.mini-foot {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 12px 4px; font-size: 11.5px; color: var(--muted);
}
.mini-foot .ico { color: var(--brand); }

.mini-preview { padding: 12px; display: grid; gap: 12px; }
.mini-preview-stage {
  height: 132px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(109,140,255,.28), rgba(34,211,238,.22));
  color: #fff;
}
.mini-preview-bar { display: flex; flex-wrap: wrap; gap: 6px; }

.mini-share { padding: 12px; display: grid; gap: 8px; }
.mini-share-row {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 11px; border-radius: 10px; background: var(--surface-2);
}
.mini-share-row .muted { width: 44px; flex: none; }
.mini-share-row code {
  font-family: var(--mono); font-size: 12px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  min-width: 0; flex: 1;
}
.code-strong { letter-spacing: .28em; font-weight: 700; color: var(--brand); }

/* ── 功能页：细节网格 ───────────────────────────────────── */
.extras { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.extra {
  display: flex; flex-direction: column; gap: 7px;
  padding: 18px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--border);
}
.extra .fi {
  width: 34px; height: 34px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--surface-2); color: var(--brand); border: 1px solid var(--border);
}
.extra b { font-size: 14px; }
.extra span:last-child { font-size: 12.5px; color: var(--text-2); line-height: 1.7; }

/* ── 架构页：分层堆叠 ───────────────────────────────────── */
.stack { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(20px, 3vw, 40px); align-items: start; }
.stack-item { display: flex; flex-direction: column; }
.stack-card {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .2s var(--ease), border-color .2s;
}
.stack-card:hover { transform: translateX(4px); border-color: var(--brand); }
.stack-card .fi {
  width: 42px; height: 42px; border-radius: 13px; flex: none;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand); border: 1px solid rgba(109,140,255,.24);
}
.stack-card b { display: block; font-size: 14.5px; }
.stack-card span:not(.badge):not(.ico) { font-size: 12.5px; color: var(--muted); }
.stack-arrow { display: grid; place-items: center; padding: 6px 0; color: var(--muted); }
.stack-side { display: flex; flex-direction: column; gap: 12px; }
.stack-note {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 15px 16px; border-radius: 15px;
  background: var(--surface); border: 1px solid var(--border);
}
.stack-note .ico { color: var(--brand); margin-top: 2px; }
.stack-note b { display: block; font-size: 13.5px; }
.stack-note span { font-size: 12.5px; color: var(--text-2); line-height: 1.7; }

@media (max-width: 900px) { .stack { grid-template-columns: minmax(0, 1fr); } }

/* ── 架构页：纵向时间线 ─────────────────────────────────── */
.timeline-vert { display: grid; gap: 0; position: relative; }
.tl-item {
  display: grid; grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px; padding: 18px 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.tl-item:first-child { border-top: 0; }
.tl-num {
  font-size: 12px; font-weight: 800; letter-spacing: .08em;
  color: var(--brand); font-variant-numeric: tabular-nums;
  padding-top: 3px;
}
.tl-item::before {
  content: ""; position: absolute; left: 21px; top: 42px; bottom: -1px;
  width: 1px; background: var(--border);
}
.tl-item:last-child::before { display: none; }
.tl-body b { display: block; font-size: 15px; margin-bottom: 4px; }
.tl-body span { font-size: 13px; color: var(--text-2); line-height: 1.75; }

/* ── 表格 ───────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 620px; }
.data-table th, .data-table td { padding: 13px 16px; text-align: left; vertical-align: top; }
.data-table thead th {
  font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--muted); background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody tr { border-top: 1px solid var(--border); }
.data-table tbody tr:first-child { border-top: 0; }
.data-table tbody tr:hover { background: var(--hover); }
.data-table td { line-height: 1.65; }
.data-table code { font-size: 12px; color: var(--brand); }
.data-table .col-featured { background: rgba(109,140,255,.07); }
.data-table.compare td:not(:first-child) { text-align: center; }
.data-table .yes { color: var(--success); display: inline-flex; }
.data-table .no { color: var(--muted); opacity: .5; display: inline-flex; }

/* 移动端横向滚动表格：首列吸顶，配滑动提示 */
.table-hint {
  display: none;
  align-items: center; gap: 7px;
  margin-bottom: 9px;
  font-size: 12px; color: var(--muted);
}
.table-hint .ico { color: var(--brand); }
@media (max-width: 720px) {
  .table-hint { display: flex; }
  .data-table th:first-child, .data-table td:first-child {
    position: sticky; left: 0; z-index: 1;
    background: var(--surface);
    box-shadow: 1px 0 0 var(--border);
  }
  .data-table thead th:first-child { background: var(--surface-2); }
  .data-table tbody tr:hover td:first-child { background: var(--surface-2); }
}

/* ── 接口文档 ───────────────────────────────────────────── */
.api-note { font-size: 13.5px; color: var(--text-2); margin-bottom: 20px; }
.api-note code {
  font-size: 12px; padding: 2px 7px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--brand);
}
.api-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 12px; }
.api-card {
  border-radius: var(--r-lg); border: 1px solid var(--border);
  background: var(--surface); overflow: hidden;
}
.api-card-head {
  display: flex; align-items: center; gap: 9px;
  padding: 13px 16px; font-size: 13.5px;
  background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.api-card-head .ico { color: var(--brand); }
.api-rows { padding: 8px; display: grid; gap: 2px; }
.api-row {
  display: grid; grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px; align-items: baseline;
  padding: 8px 10px; border-radius: 9px;
  transition: background .14s;
}
.api-row:hover { background: var(--hover); }
.api-row code { font-size: 12px; color: var(--text); overflow: hidden; text-overflow: ellipsis; }
.api-desc { grid-column: 2; font-size: 11.5px; }
.method {
  display: inline-flex; align-items: center; justify-content: center;
  height: 19px; border-radius: 6px;
  font-size: 10px; font-weight: 800; letter-spacing: .04em;
  font-family: var(--mono);
}
.m-get { background: rgba(61,220,151,.16); color: var(--success); }
.m-post { background: rgba(109,140,255,.18); color: var(--brand); }
.m-put { background: rgba(255,180,84,.16); color: var(--warn); }
.m-patch { background: rgba(167,139,250,.18); color: #a78bfa; }
.m-delete { background: rgba(255,107,129,.16); color: var(--danger); }

/* ── 使用限制 ───────────────────────────────────────────── */
.limits { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px; }
.limit {
  display: flex; flex-direction: column; gap: 5px;
  padding: 18px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--border);
}
.limit .fi {
  width: 34px; height: 34px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--surface-2); color: var(--warn); border: 1px solid var(--border);
  margin-bottom: 3px;
}
.limit b { font-size: 13.5px; }
.limit-value { font-size: 17px; font-weight: 800; letter-spacing: -.02em; color: var(--text); }
.limit .muted { line-height: 1.7; }

/* ── 价格页 ─────────────────────────────────────────────── */
.plans-lg .plan { padding: 30px 26px; }
.plans-note { text-align: center; margin-top: 20px; line-height: 1.8; }

/* ── FAQ 页 ─────────────────────────────────────────────── */
.faq-groups { display: flex; flex-direction: column; gap: clamp(30px, 4vw, 52px); padding: clamp(24px, 4vw, 44px) 0; }
.faq-group-head {
  display: flex; align-items: center; gap: 13px;
  margin-bottom: 16px;
}
.faq-group-head .fi {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand); border: 1px solid rgba(109,140,255,.24);
}
.faq-group-head h2 { font-size: clamp(18px, 2.2vw, 23px); letter-spacing: -.02em; }
.faq-group .faq { max-width: none; }
.faq-compact { max-width: 860px; margin: 0 auto; }

/* ── FAQ 页：帮助卡片 ───────────────────────────────────── */
.help-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px; }
.help-card {
  display: flex; flex-direction: column; gap: 8px;
  padding: 22px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .2s var(--ease), border-color .2s;
}
.help-card:hover { transform: translateY(-3px); border-color: var(--brand); }
.help-card .fi {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-soft); color: var(--brand); border: 1px solid rgba(109,140,255,.24);
}
.help-card b { font-size: 14.5px; }
.help-cta {
  display: inline-flex; align-items: center; gap: 5px;
  margin-top: auto; padding-top: 8px;
  font-size: 12.5px; font-weight: 600; color: var(--brand);
}

/* ── 移动端 ─────────────────────────────────────────────── */
@media (max-width: 720px) {
  .page-band h1 { max-width: none; }
  .data-table { min-width: 520px; }
  .data-table th, .data-table td { padding: 10px 11px; }
  .fg-head { grid-template-columns: auto minmax(0, 1fr); }
  .fg-num { display: none; }
  .api-grid { grid-template-columns: 1fr; }
  .tl-item { grid-template-columns: 40px minmax(0, 1fr); gap: 12px; }
  .tl-item::before { left: 14px; }
}