:root {
  --clay: #bb644c; --clay-dark: #8f4636; --teal: #153f3c; --teal-2: #2f6c66;
  --sand: #e7c896; --paper: #f7f1e7; --cream: #fffaf3; --ink: #172a28;
  --muted: #5d6a67; --line: #d8d2c6; --white: #fffdf9; --shadow: 0 22px 55px rgba(33, 53, 49, .1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif; line-height: 1.72; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .2em; }
button, input { font: inherit; }
img, video { max-width: 100%; height: auto; }
.shell { width: min(1180px, calc(100% - 32px)); margin-inline: auto; min-width: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; transform: translateY(-150%); padding: 10px 14px; background: var(--white); border: 2px solid var(--teal); border-radius: 10px; }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(247, 241, 231, .95); border-bottom: 1px solid rgba(21, 63, 60, .12); backdrop-filter: blur(15px); }
.header-row { min-height: 76px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; color: var(--teal); font-size: 1.05rem; font-weight: 850; text-decoration: none; letter-spacing: .02em; }
.brand-mark { width: 38px; height: 30px; display: flex; align-items: end; gap: 3px; padding: 6px; background: var(--teal); border-radius: 10px 10px 10px 3px; }
.brand-mark i { width: 6px; display: block; border-radius: 6px; background: var(--sand); }
.brand-mark i:nth-child(1) { height: 8px; } .brand-mark i:nth-child(2) { height: 16px; background: var(--clay); } .brand-mark i:nth-child(3) { height: 12px; }
.tabbed-nav { display: flex; flex: 1; justify-content: flex-end; gap: 5px; min-width: 0; }
.tabbed-nav a { padding: 9px 12px; color: var(--muted); border-radius: 999px; font-size: .92rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.tabbed-nav a:hover, .tabbed-nav a:focus-visible { color: var(--white); background: var(--teal); outline: none; }
.nav-toggle { display: none; margin-left: auto; align-items: center; gap: 8px; padding: 8px 12px; color: var(--teal); background: var(--white); border: 1px solid var(--line); border-radius: 10px; font-weight: 800; }
.hero { padding: 70px 0 56px; background: radial-gradient(circle at 14% 20%, rgba(187,100,76,.16), transparent 32%), linear-gradient(140deg, var(--paper), #e7ede5); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr); align-items: center; gap: clamp(32px, 6vw, 82px); }
.eyebrow { margin: 0 0 9px; color: var(--clay-dark); font-size: .78rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin: 0 0 .55em; color: var(--teal); line-height: 1.18; letter-spacing: -.025em; overflow-wrap: anywhere; }
h1 { font-size: clamp(2.65rem, 8vw, 5.8rem); letter-spacing: -.07em; }
h2 { font-size: clamp(1.65rem, 3.4vw, 2.55rem); }
h3 { font-size: 1.14rem; }
p { margin: 0 0 1em; }
.hero-lead { max-width: 700px; color: #344845; font-size: clamp(1.02rem, 2vw, 1.2rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 10px 18px; border: 1px solid transparent; border-radius: 12px; font-weight: 800; text-decoration: none; cursor: pointer; }
.button.primary { color: var(--white); background: var(--clay); box-shadow: 0 12px 25px rgba(143,70,54,.2); }
.button.secondary { color: var(--teal); background: var(--white); border-color: var(--line); }
.button:hover, .button:focus-visible, .text-button:hover, .text-button:focus-visible { transform: translateY(-1px); outline: 3px solid rgba(187,100,76,.2); }
.button.full { width: 100%; }
.microcopy, .status-note { color: var(--muted); font-size: .88rem; }
.signal-board { position: relative; padding: 22px; color: var(--white); background: var(--teal); border-radius: 26px 8px 26px 8px; box-shadow: var(--shadow); overflow: hidden; }
.signal-board::before { content: ""; position: absolute; width: 170px; height: 170px; right: -80px; top: -100px; border: 22px solid rgba(231,200,150,.16); border-radius: 50%; }
.signal-head, .signal-row { position: relative; display: flex; align-items: center; gap: 12px; }
.signal-head { justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.15); font-weight: 850; }
.live-dot { font-size: .72rem; color: var(--sand); }
.signal-row { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.signal-row > div { flex: 1; min-width: 0; }
.signal-row strong, .signal-row small { display: block; }
.signal-row small { color: #bed0cc; }
.signal-row b { color: var(--sand); font-size: .74rem; white-space: nowrap; }
.signal-icon { display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 42px; border-radius: 50%; color: var(--white); font-size: .72rem; font-weight: 900; }
.signal-icon.clay { background: var(--clay); } .signal-icon.teal { background: var(--teal-2); } .signal-icon.sand { color: var(--teal); background: var(--sand); }
.board-note { position: relative; margin-top: 18px; padding: 14px; background: rgba(255,255,255,.07); border-radius: 12px; }
.board-note span { color: var(--sand); font-size: .72rem; font-weight: 850; } .board-note p { margin: 3px 0 0; }
.section { padding-top: 72px; padding-bottom: 72px; }
.section-heading { max-width: 760px; margin-bottom: 30px; }
.section-heading > p:last-child { color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.soft-card, .soft-panel { min-width: 0; padding: 24px; background: rgba(255,253,249,.84); border: 1px solid rgba(21,63,60,.12); border-radius: 18px 18px 18px 6px; box-shadow: 0 12px 30px rgba(33,53,49,.06); }
.soft-card { display: flex; flex-direction: column; }
.soft-card h3 a { text-decoration: none; }
.soft-card p:not(.eyebrow) { color: var(--muted); }
.soft-card .text-link { margin-top: auto; color: var(--clay-dark); font-weight: 800; }
.soft-card:hover { border-color: var(--clay); transform: translateY(-2px); }
.contrast { background: var(--teal); color: #e6efec; }
.contrast h2, .contrast h3 { color: var(--white); }
.contrast .eyebrow { color: var(--sand); }
.split-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 6vw, 72px); align-items: start; }
.split-feature.compact { gap: 28px; }
.step-stack { margin: 0; padding: 0; list-style: none; }
.step-stack li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.step-stack li > span { display: grid; place-items: center; width: 38px; height: 38px; flex: 0 0 38px; color: var(--teal); background: var(--sand); border-radius: 50%; font-weight: 900; }
.step-stack p { margin: 0; color: #bed0cc; }
.text-button { display: inline-flex; margin-top: 12px; padding-bottom: 3px; color: var(--sand); border-bottom: 2px solid currentColor; font-weight: 850; text-decoration: none; }
.editorial-strip { color: var(--white); background: var(--clay); }
.editorial-strip h2, .editorial-strip .eyebrow, .editorial-strip a { color: var(--white); }
.editorial-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; }
.faq details { margin-bottom: 12px; padding: 18px 20px; background: var(--white); border: 1px solid var(--line); border-radius: 14px; }
.faq summary { color: var(--teal); font-weight: 850; cursor: pointer; }
.faq details p { margin: 12px 0 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 9px; padding-top: 24px; color: var(--muted); font-size: .88rem; }
.breadcrumb a { text-decoration: none; }
.page-hero { padding-top: 58px; padding-bottom: 42px; }
.page-hero h1 { font-size: clamp(2.25rem, 7vw, 4.6rem); }
.page-hero > p:last-child { max-width: 780px; color: var(--muted); font-size: 1.08rem; }
.boundary, .source-note { padding: 20px; background: #efe0d3; border-left: 4px solid var(--clay); border-radius: 4px 14px 14px 4px; }
.check-list, .signal-list, .avoid-list { margin: 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 9px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.check-list li span { color: var(--clay-dark); font-weight: 900; }
.signal-list, .avoid-list { display: grid; gap: 10px; }
.signal-list li, .avoid-list li { position: relative; padding: 14px 16px 14px 44px; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.signal-list li::before, .avoid-list li::before { content: "!"; position: absolute; left: 14px; top: 13px; display: grid; place-items: center; width: 22px; height: 22px; color: var(--white); background: var(--clay); border-radius: 50%; font-weight: 900; }
.avoid-list li::before { content: "×"; background: var(--teal); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 38px; padding-top: 48px; }
.article-header { grid-column: 1 / -1; max-width: 920px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.article-header h1 { font-size: clamp(2.1rem, 6vw, 4.2rem); }
.article-deck { max-width: 820px; color: var(--muted); font-size: 1.1rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: .86rem; }
.article-body section { margin-bottom: 44px; }
.article-body h2 { font-size: 1.75rem; }
.guide-steps { display: grid; gap: 14px; }
.guide-step { display: flex; gap: 16px; padding: 20px; background: var(--white); border: 1px solid var(--line); border-radius: 15px; }
.guide-step > span { display: grid; place-items: center; width: 38px; height: 38px; flex: 0 0 38px; color: var(--white); background: var(--teal); border-radius: 12px 12px 12px 3px; font-weight: 900; }
.guide-step p { margin: 0; color: var(--muted); }
.sticky { position: sticky; top: 100px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.tag { padding: 6px 11px; color: var(--teal); background: #e5ece7; border-radius: 999px; font-size: .85rem; font-weight: 800; text-decoration: none; }
.tool-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 38px; align-items: start; }
.privacy-chip { display: inline-flex; gap: 8px; padding: 9px 12px; color: var(--teal); background: #dce9e3; border-radius: 999px; font-size: .85rem; font-weight: 750; }
.privacy-chip span { color: var(--teal-2); }
.checklist-panel { padding: 26px; background: var(--white); border: 1px solid var(--line); border-radius: 20px 20px 20px 7px; box-shadow: var(--shadow); }
.checklist-head { display: flex; align-items: start; justify-content: space-between; gap: 14px; }
.checklist-head output { flex: 0 0 auto; padding: 7px 10px; color: var(--clay-dark); background: #f6e1d8; border-radius: 999px; font-size: .8rem; font-weight: 850; }
.check-item { display: flex; gap: 12px; align-items: start; padding: 15px 0; border-bottom: 1px solid var(--line); cursor: pointer; }
.check-item input { width: 20px; height: 20px; flex: 0 0 20px; accent-color: var(--teal); }
.progress-track { height: 8px; margin: 20px 0; background: #e5e2da; border-radius: 999px; overflow: hidden; }
.progress-track i { display: block; height: 100%; background: var(--clay); transition: width .2s ease; }
.prose-page { padding-top: 36px; padding-bottom: 72px; }
.prose-content { max-width: 820px; }
.prose-content section { margin-bottom: 34px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.prose-content h2 { font-size: 1.7rem; }
.not-found { min-height: 70vh; padding-top: 70px; padding-bottom: 70px; text-align: center; }
.not-found > p { max-width: 720px; margin-inline: auto; }
.not-found .hero-actions { justify-content: center; }
.not-found .soft-panel { max-width: 720px; margin: 34px auto 0; text-align: left; }
.error-code { display: flex; justify-content: center; align-items: center; gap: 15px; color: var(--teal); font-size: clamp(5rem, 20vw, 10rem); font-weight: 950; line-height: 1; }
.error-code i { width: 70px; height: 70px; background: conic-gradient(var(--clay) 0 25%, var(--sand) 25% 50%, var(--teal-2) 50% 75%, #d7e1d8 75%); border-radius: 50%; }
.site-footer { padding-top: 54px; color: #dce9e6; background: #0f312f; }
.footer-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 44px; }
.footer-grid p { max-width: 460px; }
.footer-brand { color: var(--white); }
.footer-grid nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 20px; }
.footer-grid nav a { color: #dce9e6; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 36px; padding-top: 18px; padding-bottom: 22px; color: #9ab2ae; border-top: 1px solid rgba(255,255,255,.12); font-size: .82rem; }
@media (max-width: 900px) {
  .header-row { flex-wrap: wrap; padding: 14px 0; }
  .nav-toggle { display: inline-flex; }
  .tabbed-nav { display: none; order: 3; width: 100%; flex-basis: 100%; justify-content: flex-start; flex-wrap: wrap; padding-top: 8px; }
  .tabbed-nav[data-open="true"] { display: flex; }
  .hero-grid, .article-layout, .tool-layout { grid-template-columns: 1fr; }
  .article-aside { grid-column: 1; }
  .sticky { position: static; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .shell { width: min(100% - 24px, 1180px); }
  .hero { padding-top: 46px; }
  .hero-grid, .split-feature, .editorial-grid, .footer-grid { grid-template-columns: 1fr; }
  .card-grid, .card-grid.two { grid-template-columns: 1fr; }
  .section { padding-top: 52px; padding-bottom: 52px; }
  .signal-board, .soft-card, .soft-panel, .checklist-panel { padding: 19px; }
  .signal-row { align-items: flex-start; }
  .signal-row b { display: none; }
  .article-layout { padding-top: 30px; gap: 24px; }
  .article-meta { flex-direction: column; }
  .guide-step { padding: 16px; }
  .footer-grid nav { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .checklist-head { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }
:focus-visible { outline: 3px solid rgba(187,100,76,.42); outline-offset: 3px; }