/*!
 * 黄金纯度对照 · precious-metal-purity-guide
 * 独立设计系统「金店鉴定单」：暖米纸 + 深墨 + 赤金 + 朱印红
 * 版式：纯度环首屏 / 左窄纯度参数 / 右宽四向换算与计价单 / 钢印拓片
 * 浮层共享变量作用域；深浅主题跟随导航 #themeToggle。
 */
.pmg-page, .pmg-modal, .pmg-sheet, .pmg-toast {
    --pmg-bg: #f8f4ea;
    --pmg-bg2: #f0e9da;
    --pmg-card: #fffdf6;
    --pmg-line: #e2d7bd;
    --pmg-line2: #c9b78f;
    --pmg-ink: #2f2a22;
    --pmg-ink2: #665c49;
    --pmg-ink3: #948a72;
    --pmg-gold: #a87d21;
    --pmg-gold-soft: rgba(168, 125, 33, .13);
    --pmg-red: #a6372b;
    --pmg-red-soft: rgba(166, 55, 43, .11);
    --pmg-green: #3f6b52;
    --pmg-shadow: 0 22px 46px -30px rgba(47, 42, 34, .5);
    --pmg-shadow-s: 0 10px 22px -16px rgba(47, 42, 34, .45);
    --pmg-serif: "Songti SC", "Noto Serif SC", Georgia, serif;
    --pmg-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --pmg-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}
:root[data-theme="dark"] .pmg-page,
:root[data-theme="dark"] .pmg-modal,
:root[data-theme="dark"] .pmg-sheet,
:root[data-theme="dark"] .pmg-toast {
    --pmg-bg: #191610;
    --pmg-bg2: #201c13;
    --pmg-card: #262116;
    --pmg-line: #3d3524;
    --pmg-line2: #544930;
    --pmg-ink: #f3ecdc;
    --pmg-ink2: #c9bda2;
    --pmg-ink3: #948665;
    --pmg-gold: #e4bc67;
    --pmg-gold-soft: rgba(228, 188, 103, .15);
    --pmg-red: #e08a72;
    --pmg-red-soft: rgba(224, 138, 114, .15);
    --pmg-green: #78c49a;
    --pmg-shadow: 0 22px 46px -28px rgba(0, 0, 0, .85);
    --pmg-shadow-s: 0 10px 22px -14px rgba(0, 0, 0, .75);
}
.pmg-page {
    background:
        radial-gradient(820px 400px at 5% -8%, var(--pmg-gold-soft), transparent 62%),
        radial-gradient(680px 380px at 100% 3%, var(--pmg-red-soft), transparent 60%),
        var(--pmg-bg);
    color: var(--pmg-ink); font-family: var(--pmg-sans); font-size: 15px; line-height: 1.85; min-height: 60vh;
}
.pmg-page *, .pmg-page *::before, .pmg-page *::after, .pmg-modal *, .pmg-sheet * { box-sizing: border-box; }
.pmg-page b, .pmg-page strong { color: var(--pmg-red); font-weight: 800; }
.pmg-wrap { max-width: 1180px; margin: 0 auto; padding: 20px 16px 12px; }
.pmg-page .detail-breadcrumb { margin: 0 0 16px; font-size: 13px; color: var(--pmg-ink2); }
.pmg-page .detail-breadcrumb a { color: var(--pmg-gold); text-decoration: none; }
.pmg-page .detail-breadcrumb .sep { margin: 0 8px; color: var(--pmg-ink3); }

/* 首屏 */
.pmg-hero { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: 26px; padding: 28px 30px 24px; border-radius: 22px; border: 1.5px solid var(--pmg-line); background: linear-gradient(145deg, var(--pmg-card) 0%, var(--pmg-bg2) 100%); box-shadow: var(--pmg-shadow); position: relative; overflow: hidden; }
.pmg-hero::before { content: '鑑'; position: absolute; right: 20px; bottom: -34px; font-family: var(--pmg-serif); font-size: 130px; color: var(--pmg-red); opacity: .07; pointer-events: none; }
.pmg-kicker { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 800; letter-spacing: .12em; color: var(--pmg-red); background: var(--pmg-red-soft); border: 1px solid var(--pmg-line); }
.pmg-hero h1 { font-family: var(--pmg-serif); font-size: clamp(26px, 3.3vw, 38px); line-height: 1.32; margin: 13px 0 8px; }
.pmg-sub { margin: 0; color: var(--pmg-ink2); font-size: 15px; line-height: 1.9; max-width: 610px; }
.pmg-sub b { color: var(--pmg-red); }
.pmg-facts { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.pmg-facts > div { flex: 1 1 120px; padding: 10px 14px; border-radius: 12px; background: var(--pmg-card); border: 1px solid var(--pmg-line); box-shadow: var(--pmg-shadow-s); }
.pmg-facts b { display: block; font-family: var(--pmg-mono); font-size: 21px; line-height: 1.3; color: var(--pmg-gold); }
.pmg-facts span { font-size: 12px; color: var(--pmg-ink3); }
.pmg-quick { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; }
.pmg-quick > span { font-size: 12.5px; color: var(--pmg-ink3); }
.pmg-stamp { min-width: 52px; padding: 7px 10px; border-radius: 7px; border: 1.5px double var(--pmg-line2); background: var(--pmg-card); color: var(--pmg-ink2); font-family: var(--pmg-mono); font-size: 13px; font-weight: 700; cursor: pointer; transition: .16s; }
.pmg-stamp:hover { border-color: var(--pmg-red); color: var(--pmg-red); }
.pmg-stamp.is-on { background: var(--pmg-red); border-color: var(--pmg-red); color: #fff; }
:root[data-theme="dark"] .pmg-stamp.is-on { color: #191610; }
.pmg-stamp--go { border-style: solid; border-radius: 9px; font-family: var(--pmg-sans); border-color: var(--pmg-gold); color: var(--pmg-gold); }
.pmg-stamp--go:hover { background: var(--pmg-gold); color: #fff; }

.pmg-hero-side { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 12px; border-radius: 16px; background: var(--pmg-bg2); border: 1px dashed var(--pmg-line2); }
.pmg-ring-wrap { position: relative; width: min(190px, 100%); }
.pmg-ring { display: block; width: 100%; height: auto; }
.pmg-ring-bg { fill: none; stroke: var(--pmg-line); stroke-width: 16; }
.pmg-ring-fg { fill: none; stroke: var(--pmg-gold); stroke-width: 16; stroke-linecap: round; stroke-dasharray: 478; stroke-dashoffset: 478; transform: rotate(-90deg); transform-origin: 100px 100px; transition: stroke-dashoffset .4s ease; }
.pmg-ring-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.pmg-ring-center b { font-family: var(--pmg-mono); font-size: 27px; color: var(--pmg-red); line-height: 1.2; }
.pmg-ring-center span { font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-stamp-card { width: 100%; padding: 10px 12px; border-radius: 10px; border: 2px solid var(--pmg-red); background: var(--pmg-red-soft); text-align: center; }
.pmg-stamp-card span { display: block; font-size: 11px; color: var(--pmg-ink3); letter-spacing: .2em; }
.pmg-stamp-card b { display: block; font-family: var(--pmg-mono); font-size: 22px; color: var(--pmg-red); letter-spacing: .05em; }
.pmg-stamp-card small { display: block; font-size: 11px; color: var(--pmg-ink2); }

/* 主体 */
.pmg-body { display: grid; grid-template-columns: minmax(0, 330px) minmax(0, 1fr); gap: 22px; margin-top: 22px; align-items: start; }
.pmg-body > * { min-width: 0; }
.pmg-form, .pmg-result { background: var(--pmg-card); border: 1.5px solid var(--pmg-line); border-radius: 18px; padding: 20px 22px 22px; box-shadow: var(--pmg-shadow-s); }
.pmg-form { border-left: 4px solid var(--pmg-red); }
.pmg-h { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.pmg-h > span { font-family: var(--pmg-serif); font-size: 14px; color: var(--pmg-gold); border: 1px solid var(--pmg-gold-soft); padding: 1px 8px; border-radius: 6px; }
.pmg-h h2 { margin: 0; font-family: var(--pmg-serif); font-size: 18px; }
.pmg-field { margin-bottom: 15px; }
.pmg-label { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; font-size: 13.5px; font-weight: 700; margin-bottom: 6px; }
.pmg-label em { font-style: normal; font-size: 12px; color: var(--pmg-red); font-weight: 700; }
.pmg-label small { font-size: 11px; color: var(--pmg-ink3); font-weight: 400; }
.pmg-range { width: 100%; accent-color: var(--pmg-gold); margin-bottom: 6px; }
.pmg-input { width: 100%; padding: 9px 11px; border-radius: 9px; border: 1.5px solid var(--pmg-line2); background: var(--pmg-bg2); color: var(--pmg-ink); font-family: var(--pmg-mono); font-size: 15px; outline: none; }
.pmg-input:focus { border-color: var(--pmg-red); box-shadow: 0 0 0 3px var(--pmg-red-soft); }
.pmg-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.pmg-err { margin: 0 0 8px; font-size: 12px; color: var(--pmg-red); }
.pmg-actions { display: flex; gap: 7px; flex-wrap: wrap; }
.pmg-btn { padding: 9px 14px; border-radius: 9px; border: 1.5px solid var(--pmg-line2); background: var(--pmg-card); color: var(--pmg-ink2); font-size: 13px; font-weight: 700; cursor: pointer; font-family: var(--pmg-sans); transition: .15s; }
.pmg-btn:hover { border-color: var(--pmg-red); color: var(--pmg-red); }
.pmg-btn--main { background: var(--pmg-red); border-color: var(--pmg-red); color: #fff; flex: 1 1 100%; }
.pmg-btn--main:hover { color: #fff; filter: brightness(1.1); }
:root[data-theme="dark"] .pmg-btn--main { color: #191610; }
.pmg-btn--sm { padding: 6px 11px; font-size: 12px; }

/* 结果 */
.pmg-quad { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; }
.pmg-quad > div { padding: 13px 11px; border-radius: 12px; background: var(--pmg-bg2); border: 1px solid var(--pmg-line); text-align: center; }
.pmg-quad small { display: block; font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-quad b { display: block; font-family: var(--pmg-mono); font-size: clamp(17px, 2.1vw, 23px); color: var(--pmg-gold); line-height: 1.4; word-break: break-all; }
.pmg-quad span { display: block; font-size: 11px; color: var(--pmg-ink2); }
.pmg-verdict { margin: 12px 0 0; padding: 11px 14px; border-radius: 10px; background: var(--pmg-red-soft); border: 1px solid var(--pmg-line); font-size: 13px; line-height: 1.85; color: var(--pmg-ink2); }
.pmg-verdict b { color: var(--pmg-red); }
.pmg-block-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin: 18px 0 9px; flex-wrap: wrap; }
.pmg-block-head b { font-family: var(--pmg-serif); font-size: 15.5px; }
.pmg-block-head span { font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-bill-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; }
.pmg-bill-item { padding: 11px 12px; border-radius: 11px; border: 1px solid var(--pmg-line); background: var(--pmg-card); }
.pmg-bill-item span { display: block; font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-bill-item b { display: block; font-family: var(--pmg-mono); font-size: 19px; color: var(--pmg-red); }
.pmg-bill-item.is-main { border-color: var(--pmg-gold); background: var(--pmg-gold-soft); }
.pmg-bill-item.is-main b { color: var(--pmg-gold); }
.pmg-scroll { overflow-x: auto; }
.pmg-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.pmg-table th { text-align: left; padding: 8px 9px; background: var(--pmg-bg2); color: var(--pmg-ink3); font-weight: 700; border-bottom: 1.5px solid var(--pmg-line2); white-space: nowrap; }
.pmg-table td { padding: 8px 9px; border-bottom: 1px solid var(--pmg-line); color: var(--pmg-ink2); }
.pmg-table .pmg-pick { border: 0; background: none; color: var(--pmg-red); font-weight: 700; cursor: pointer; padding: 0; font-size: 12.5px; }
.pmg-table .pmg-pick:hover { text-decoration: underline; }
.pmg-table .pmg-mini { padding: 3px 8px; font-size: 11px; border-radius: 6px; border: 1px solid var(--pmg-line2); background: var(--pmg-card); color: var(--pmg-red); cursor: pointer; }
.pmg-table input.pmg-memo { width: 100%; min-width: 80px; padding: 4px 6px; border-radius: 6px; border: 1px solid var(--pmg-line); background: var(--pmg-bg2); color: var(--pmg-ink); font-size: 12px; }
.pmg-memo-view { display: block; font-size: 11px; color: var(--pmg-ink3); word-break: break-all; }
.pmg-tip { margin: 8px 0 0; font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-batch-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.pmg-batch-head b { font-family: var(--pmg-serif); font-size: 15.5px; }
.pmg-batch-head span { font-size: 11.5px; color: var(--pmg-ink3); }
.pmg-batch-btns { display: flex; gap: 6px; flex-wrap: wrap; }

/* 导读 */
.pmg-guide { margin: 22px 0 6px; padding: 20px 24px; border-radius: 18px; background: var(--pmg-card); border: 1.5px solid var(--pmg-line); }
.pmg-guide h2 { margin: 0 0 14px; font-family: var(--pmg-serif); font-size: 19px; }
.pmg-guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.pmg-guide article { padding: 12px 14px; border-radius: 12px; background: var(--pmg-bg2); border: 1px solid var(--pmg-line); }
.pmg-guide article > span { font-family: var(--pmg-serif); font-size: 17px; color: var(--pmg-gold); }
.pmg-guide h3 { margin: 3px 0 5px; font-size: 15px; font-family: var(--pmg-serif); }
.pmg-guide p { margin: 0; font-size: 13px; line-height: 1.85; color: var(--pmg-ink2); }

/* 浮层 */
.pmg-modal[hidden] { display: none !important; }
.pmg-modal { position: fixed; inset: 0; z-index: 9000; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(26, 21, 12, .62); backdrop-filter: blur(3px); font-family: var(--pmg-sans); color: var(--pmg-ink); }
.pmg-sheet { width: min(460px, 100%); padding: 24px; border-radius: 18px; background: var(--pmg-card); border: 1.5px solid var(--pmg-line); box-shadow: var(--pmg-shadow); }
.pmg-sheet h3 { margin: 0 0 8px; font-family: var(--pmg-serif); font-size: 20px; }
.pmg-sheet p { margin: 0 0 12px; font-size: 13.5px; color: var(--pmg-ink2); line-height: 1.8; }
.pmg-sheet code { display: block; padding: 10px 12px; border-radius: 9px; background: var(--pmg-bg2); border: 1px dashed var(--pmg-line2); font-family: var(--pmg-mono); font-size: 12px; word-break: break-all; color: var(--pmg-red); }
.pmg-sheet-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.pmg-toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(10px); z-index: 9500; padding: 9px 18px; border-radius: 999px; font-size: 13px; font-weight: 700; background: var(--pmg-ink); color: var(--pmg-card); opacity: 0; pointer-events: none; transition: .25s; font-family: var(--pmg-sans); }
.pmg-toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 980px) {
    .pmg-hero, .pmg-body { grid-template-columns: minmax(0, 1fr); }
    .pmg-guide-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
    .pmg-wrap { padding: 14px 12px 8px; }
    .pmg-hero { padding: 20px 16px; }
    .pmg-form, .pmg-result, .pmg-guide { padding: 16px 14px; }
    .pmg-quad, .pmg-bill-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .pmg-table { min-width: 0; }
    .pmg-table th, .pmg-table td { padding: 6px 5px; font-size: 11.5px; }
}


/* 390 窄屏：公共「下一步推荐」卡片的 grid item 默认 min-width:auto 会被长文本撑开，
   这里做页面级兼容修复（本 CSS 只在本页加载，不影响站内其它页面）。 */
@media (max-width: 640px) {
    .tool-rec-grid > * { min-width: 0; }
    .tool-rec-item { min-width: 0; max-width: 100%; }
    .tool-rec-body b, .tool-rec-body small { white-space: normal; word-break: break-word; }
}