/* 涅槃授权中心 · 子站补充样式（代理 / 下载 共用，补充主 style.css 缺失的版式类） */

/* ---------- 兼容层：子站依赖的变量映射到主站主题变量（自动适配亮/暗） ---------- */
:root {
  --bg-soft: var(--panel);
  --fg: var(--text);
  --fg-soft: var(--text-2);
  --brand: var(--grad-1);
  --brand-grad: linear-gradient(135deg, var(--grad-1), var(--grad-2) 60%, var(--grad-3));
}

/* ---------- 区块 ---------- */
.section { padding: clamp(48px, 7vw, 84px) 0; }
.section.alt { background: color-mix(in srgb, var(--brand) 6%, transparent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 clamp(18px, 5vw, 40px); }
.center { text-align: center; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 38px; }
.sec-head h2 { font-size: clamp(24px, 4vw, 34px); margin: 10px 0 12px; }
.sec-head p { color: var(--fg-soft); margin: 0; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .06em;
  color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, transparent);
  padding: 5px 12px; border-radius: 999px;
}

/* ---------- 网格 ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 特性卡 ---------- */
.feat { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--card-shadow); }
.feat h4 { margin: 0 0 8px; font-size: 17px; }
.feat p { margin: 0; color: var(--fg-soft); font-size: 14.5px; }
.fico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--brand) 14%, transparent); color: var(--brand);
  font-size: 22px; margin-bottom: 14px;
}

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; box-shadow: var(--card-shadow); }
.step h4 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--fg-soft); font-size: 14px; }

/* ---------- 卡片 / 表格 ---------- */
.card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--card-shadow); overflow: hidden; }
.card-hd { padding: 20px 24px; border-bottom: 1px solid var(--line); display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.card-hd h3 { margin: 0; font-size: 18px; }
.card-hd .sub { color: var(--fg-soft); font-size: 13px; }
.card-bd { padding: 18px 24px; }
.tablewrap { overflow-x: auto; padding: 6px 24px 20px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tbl th, .tbl td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.tbl thead th { color: var(--fg-soft); font-weight: 600; font-size: 13px; }
.tbl .right { text-align: right; }
.tbl .num { font-variant-numeric: tabular-nums; }
.tbl .strong { font-weight: 700; }
.tbl tbody tr:hover { background: color-mix(in srgb, var(--brand) 6%, transparent); }
.hint {
  font-size: 13px; color: var(--fg-soft);
  background: color-mix(in srgb, var(--brand) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand) 20%, transparent);
  border-radius: 12px; padding: 10px 14px;
}
.muted { color: var(--fg-soft); }

/* ---------- Hero 备注 / 大按钮 ---------- */
.hero-note { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 22px; justify-content: center; color: var(--fg-soft); font-size: 14px; }
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.hero-note i { color: var(--brand); font-style: normal; font-weight: 700; }
.btn-lg { padding: 16px 34px; font-size: 17px; }

/* ---------- 下载中心 ---------- */
.search { display: flex; gap: 10px; max-width: 520px; margin: 18px auto 0; }
.search input { flex: 1; padding: 12px 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); font-size: 15px; font-family: inherit; }
.search input:focus { outline: none; border-color: var(--brand); }
.search button { padding: 12px 22px; border-radius: 12px; border: none; background: var(--brand-grad); color: #fff; font-weight: 600; cursor: pointer; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 16px; }
.chip { padding: 7px 15px; border-radius: 999px; font-size: 13.5px; font-weight: 600; color: var(--fg-soft); background: var(--bg-soft); border: 1px solid var(--line); cursor: pointer; transition: .15s; }
.chip:hover { border-color: var(--brand); color: var(--brand); }
.chip.on { background: var(--brand-grad); color: #fff; border-color: transparent; }
.dl-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: color-mix(in srgb, var(--brand) 10%, transparent); color: var(--brand); border: 1px solid color-mix(in srgb, var(--brand) 22%, transparent); }
.meta { display: flex; gap: 16px; flex-wrap: wrap; color: var(--fg-soft); font-size: 13px; margin-top: 12px; }
.meta span { display: inline-flex; align-items: center; gap: 5px; }
.desc { color: var(--fg-soft); font-size: 14px; margin: 10px 0 0; }
.card-top { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: color-mix(in srgb, var(--brand) 14%, transparent); color: var(--brand); font-weight: 800; font-size: 16px; flex: none; }
.card-title { min-width: 0; }
.card-title h3 { margin: 0; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-title .fn { margin: 2px 0 0; font-size: 12px; color: var(--fg-soft); font-family: ui-monospace, monospace; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0 0; }
.empty { text-align: center; padding: 60px 20px; }
.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty h2 { margin: 0 0 8px; }
.empty p { color: var(--fg-soft); margin: 0 0 18px; }

/* ---------- 顶栏（下载/资料复用） ---------- */
.top { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg-soft) 82%, transparent); backdrop-filter: saturate(140%) blur(14px); border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; gap: 16px; padding: 12px clamp(18px, 5vw, 56px); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand img { width: 34px; height: 34px; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text em { font-style: normal; font-size: 12px; color: var(--fg-soft); font-weight: 600; }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.back-link { color: var(--fg-soft); font-size: 14px; }
.db-badge { font-size: 12px; padding: 4px 10px; border-radius: 999px; font-weight: 600; }
.db-badge.ok { color: #2fbf71; background: color-mix(in srgb, #2fbf71 14%, transparent); }
.db-badge.off { color: var(--fg-soft); background: var(--bg-soft); border: 1px solid var(--line); }

/* ---------- 星空 / 提示 / 历史栏（子站共用，原主 style.css 未提供） ---------- */
/* 主内容需压在星空 canvas 之上 */
main, .footer { position: relative; z-index: 1; }
.stars {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none; opacity: .55;
}
.history-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg-soft); color: var(--fg-soft); font-size: 13px; margin-top: 18px;
}
.toast {
  position: fixed; left: 50%; bottom: 36px;
  transform: translateX(-50%) translateY(12px);
  background: var(--text); color: var(--bg);
  padding: 11px 20px; border-radius: 12px; font-size: 14px; font-weight: 600;
  box-shadow: var(--card-shadow); opacity: 0; visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 60; pointer-events: none;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
}