/* ptochina.org — pure static editorial system */
:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --paper: #ffffff;
  --white: #ffffff;
  --forest: #1d1d1f;
  --forest-2: #d02b1b;
  --lime-soft: #fff2f0;
  --amber: #b8862b;
  --brand-hover: #b92317;
  --brand-soft: #fff2f0;
  --brand-line: #f0cbc5;
  --gold-soft: #fff8e8;
  --line: rgba(29, 29, 31, .10);
  --line-strong: rgba(29, 29, 31, .16);
  --tint: #f6f6f7;
  --shadow: 0 16px 42px rgba(29, 29, 31, .11);
  --shadow-sm: 0 5px 18px rgba(29, 29, 31, .055);
  --shadow-hover: 0 12px 30px rgba(29, 29, 31, .10);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --max: 1120px;
  --measure: 1120px;
  --copy: 800px;
  --copy-narrow: 640px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif; font-size: 16px; line-height: 1.62; letter-spacing: -.01em; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: var(--lime-soft); color: var(--ink); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
img { max-width: 100%; height: auto; }
button, input { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif; font-weight: 700; line-height: 1.12; letter-spacing: -.03em; }
h1 { font-size: clamp(2rem, 3.8vw, 3.1rem); }
h2 { font-size: clamp(1.65rem, 2.7vw, 2.35rem); }
h3 { font-size: 1.25rem; }
p:last-child { margin-bottom: 0; }
:focus-visible { outline: 3px solid var(--forest-2); outline-offset: 4px; border-radius: 6px; }
.skip-link { position: fixed; z-index: 100; left: 1rem; top: 1rem; padding: .7rem 1rem; color: var(--white); background: var(--forest); transform: translateY(-180%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
.page-shell { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, .76); border-bottom: 1px solid var(--line); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); }
.header-inner { width: min(calc(100% - 2rem), var(--max)); min-height: 58px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.wordmark { display: flex; align-items: center; gap: 9px; text-decoration: none; flex-shrink: 0; }
.wordmark-symbol { position: relative; width: 30px; height: 30px; display: grid; place-items: center; padding: 0; overflow: hidden; border-radius: 8px; background: var(--forest-2); }
.wordmark-symbol::before { content: "中"; color: var(--white); font-size: 16px; font-weight: 700; line-height: 1; }
.wordmark > span:last-child { display: flex; align-items: baseline; gap: 6px; line-height: 1; }
.wordmark strong { display: block; color: var(--ink); font: 650 1.2rem/1 ui-sans-serif, sans-serif; letter-spacing: -.025em; }
.wordmark small { display: block; color: #86642b; font-size: .66rem; font-weight: 650; letter-spacing: .16em; text-transform: uppercase; }
.desktop-nav { display: flex; align-items: center; gap: .25rem; }
.desktop-nav a { padding: .48rem .7rem; color: #424245; border-radius: var(--radius-sm); text-decoration: none; font-size: .84rem; font-weight: 550; transition: color .18s ease, background .18s ease; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--forest-2); background: var(--brand-soft); }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; list-style: none; padding: .52rem .9rem; color: var(--white); background: var(--forest-2); border-radius: 999px; font-weight: 650; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu nav { position: absolute; right: 0; top: calc(100% + .6rem); min-width: 220px; display: grid; padding: .5rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.mobile-menu a { min-height: 44px; display: flex; align-items: center; padding: .65rem .75rem; border-radius: var(--radius-sm); text-decoration: none; font-weight: 650; }
.mobile-menu a[aria-current="page"] { color: var(--forest-2); background: var(--lime-soft); }

.breadcrumbs { display: flex; gap: .5rem; align-items: center; padding-top: 1rem; color: var(--muted); font-size: .82rem; }
.breadcrumbs a { color: var(--forest-2); }
.eyebrow, .section-tag { display: inline-flex; align-items: center; gap: .4rem; margin-bottom: .75rem; color: var(--forest-2); font: 700 .78rem/1.2 ui-sans-serif, sans-serif; letter-spacing: .02em; text-transform: none; }

.hero-section { position: relative; min-height: 520px; display: flex; align-items: center; overflow: hidden; color: var(--ink); background: linear-gradient(180deg, #ffffff 0%, #fff7f5 100%); }
.hero-section::before { content: "中"; position: absolute; right: clamp(-2rem, 5vw, 5rem); bottom: -7rem; color: rgba(232, 52, 31, .035); font: 700 clamp(18rem, 38vw, 32rem)/1 Georgia, serif; pointer-events: none; }
.hero-section::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 88% 8%, rgba(208,43,27,.08), transparent 31%), radial-gradient(circle at 10% 92%, rgba(184,134,43,.09), transparent 30%); }
.hero-search-shell { position: relative; z-index: 1; padding-block: clamp(3.25rem, 6vw, 4.75rem) 2.5rem; text-align: center; }
.hero-kicker { margin-bottom: 1rem; color: var(--forest-2); font-size: .88rem; font-weight: 650; letter-spacing: .01em; text-transform: none; }
.hero-search-shell h1 { max-width: var(--measure); margin: 0 auto .9rem; color: var(--ink); font: 730 clamp(2.35rem, 4.4vw, 3.85rem)/1.08 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -.045em; }
.hero-search-shell h1 em { color: var(--forest-2); font-style: normal; }
.hero-lead { max-width: var(--copy-narrow); margin: 0 auto 1.5rem; color: var(--muted); font-size: clamp(1rem, 1.7vw, 1.18rem); line-height: 1.62; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }
.hero-product-search { max-width: var(--measure); min-height: 70px; display: grid; grid-template-columns: minmax(0, 1fr) 170px; margin: 0 auto; overflow: hidden; background: var(--white); border: 1px solid var(--line-strong); border-radius: 999px; box-shadow: var(--shadow); }
.hero-product-search:focus-within { border-color: var(--forest-2); box-shadow: 0 0 0 4px rgba(208,43,27,.13), var(--shadow); }
.hero-search-field { position: relative; min-width: 0; display: flex; align-items: center; background: var(--white); }
.hero-search-field input { width: 100%; min-width: 0; height: 68px; padding: 0 1.2rem 0 4.4rem; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: 1.02rem; }
.hero-search-field input::placeholder { color: #8a8a8f; opacity: 1; }
.search-lens { position: absolute; left: 1.7rem; top: 50%; width: 23px; height: 23px; border: 2px solid #6e6e73; border-radius: 50%; transform: translateY(-55%); }
.search-lens::after { content: ""; position: absolute; width: 10px; height: 2px; right: -8px; bottom: -5px; background: #6e6e73; border-radius: 3px; transform: rotate(45deg); transform-origin: left center; }
.hero-product-search button { min-width: 0; padding: 0 1.4rem; color: var(--white); background: var(--forest-2); border: 0; border-radius: 0 999px 999px 0; cursor: pointer; font-size: 1rem; font-weight: 650; transition: background .18s, transform .18s; }
.hero-product-search button:hover { background: var(--brand-hover); }
.hero-product-search button:active { transform: scale(.985); }
.hero-search-note { margin: .8rem 0 0; color: var(--muted); font-size: .76rem; }
.hero-flow { position: relative; max-width: var(--measure); display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin: 1.25rem auto 0; padding: 0; list-style: none; }
.hero-flow::before { content: ""; position: absolute; left: 16.5%; right: 16.5%; top: 17px; height: 1px; background: var(--line-strong); }
.hero-flow li { position: relative; z-index: 1; display: grid; justify-items: center; color: var(--ink); }
.flow-marker { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: .6rem; color: var(--white); background: var(--forest-2); border-radius: var(--radius-sm); box-shadow: 0 5px 14px rgba(208,43,27,.2); font-size: .72rem; font-weight: 750; }
.hero-flow strong { font-size: .92rem; }
.hero-flow small { margin-top: .12rem; color: var(--muted); font-size: .74rem; }
.trust-note { max-width: var(--measure); margin: 1.15rem auto 0; padding-top: .8rem; color: var(--muted); border-top: 1px solid var(--line); font-size: .76rem; line-height: 1.5; }
.hero-secondary-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .55rem 1.2rem; margin-top: .7rem; }
.hero-secondary-links a { color: var(--forest-2); font-size: .78rem; font-weight: 650; text-decoration-color: rgba(208,43,27,.32); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; margin-top: 1.25rem; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: .35rem; min-height: 44px; padding: .68rem 1.15rem; border: 1px solid transparent; border-radius: 999px; text-decoration: none; font-size: .88rem; font-weight: 650; line-height: 1.25; transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { color: var(--white); background: var(--forest-2); }
.button.primary, .button.pale { box-shadow: 0 7px 18px rgba(208,43,27,.18); }
.button.primary:hover, .button.pale:hover { background: var(--brand-hover); box-shadow: 0 9px 22px rgba(208,43,27,.23); }
.button.secondary { color: var(--ink); background: var(--white); border-color: var(--line-strong); }
.button.pale { color: var(--white); background: var(--forest-2); }
.button.outline-light { color: var(--ink); background: var(--white); border-color: var(--line-strong); }

.section { padding-block: clamp(2.6rem, 4.5vw, 3.9rem); }
.section-tint { background: var(--white); border-block: 1px solid var(--line); }
.answer-section { display: grid; gap: clamp(1.5rem, 3vw, 2.75rem); }
.quick-answer { position: relative; width: 100%; max-width: var(--measure); margin: 1.5rem auto 0; padding: 1.2rem 1.35rem 1.2rem 1.7rem; background: var(--white); border: 1px solid var(--brand-line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.quick-answer::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--forest-2); border-radius: var(--radius) 0 0 var(--radius); }
.quick-answer > span { display: block; margin-bottom: .35rem; color: var(--forest-2); font-size: .72rem; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.quick-answer p { font-size: 1.05rem; line-height: 1.65; }
.split-heading, .editorial-split { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(1.25rem, 3vw, 2.75rem); align-items: start; }
.split-heading h2, .editorial-split h2 { max-width: 550px; margin-bottom: 0; }
.reading-copy { max-width: var(--copy-narrow); color: var(--muted); font-size: 1.05rem; }
.section-heading { max-width: var(--copy); margin-bottom: 1.35rem; }
.section-heading.narrow { max-width: var(--copy-narrow); }
.section-heading h2 { margin-bottom: .75rem; }
.section-heading > p { color: var(--muted); font-size: 1.02rem; }
.section-tag.light { color: var(--forest-2); }

.catalog-section { background: var(--white); border-block: 1px solid var(--line); }
.catalog-heading { max-width: var(--copy); margin: 0 auto 2rem; text-align: center; }
.catalog-heading .section-tag { margin-bottom: .8rem; color: var(--forest-2); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.catalog-heading h2 { margin-bottom: .75rem; color: #1d1d1f; font: 700 clamp(1.75rem, 2.8vw, 2.4rem)/1.08 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: -.04em; }
.catalog-heading p { margin: 0; color: #6e6e73; font-size: 1rem; }
.catalog-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .8rem; }
.catalog-card { position: relative; min-height: 198px; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; padding: 1.2rem .9rem 1rem; color: #1d1d1f; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); text-align: center; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.catalog-card:hover { transform: translateY(-2px); border-color: var(--brand-line); box-shadow: var(--shadow-hover); }
.catalog-icon { width: 70px; height: 70px; display: grid; place-items: center; margin-bottom: .85rem; background: var(--forest-2); border: 1px solid rgba(192,36,23,.25); border-radius: var(--radius); box-shadow: 0 8px 20px rgba(208,43,27,.16); transition: background .2s ease, transform .2s ease, box-shadow .2s ease; }
.catalog-card:hover .catalog-icon { background: var(--brand-hover); transform: scale(1.025); box-shadow: 0 10px 24px rgba(208,43,27,.22); }
.catalog-icon::before { content: ""; width: 30px; height: 30px; background: var(--white); -webkit-mask: var(--catalog-icon) center / contain no-repeat; mask: var(--catalog-icon) center / contain no-repeat; }
.catalog-card strong { display: block; margin-bottom: .32rem; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 1.05rem; font-weight: 720; line-height: 1.2; letter-spacing: -.02em; }
.catalog-card small { display: block; color: #6e6e73; font-size: .78rem; line-height: 1.4; }
.catalog-arrow { position: absolute; right: .85rem; top: .7rem; color: var(--forest-2); font-size: .76rem; font-weight: 800; opacity: 0; transform: translate(-3px, 3px); transition: opacity .22s ease, transform .22s ease; }
.catalog-card:hover .catalog-arrow { opacity: 1; transform: translate(0, 0); }
.catalog-note { max-width: var(--copy); margin: 1.25rem auto 0; color: #6e6e73; font-size: .78rem; line-height: 1.5; text-align: center; }
.icon-shoes { --catalog-icon: url("assets/category-icons/shoe.svg"); }
.icon-shirts { --catalog-icon: url("assets/category-icons/shirt.svg"); }
.icon-hoodies { --catalog-icon: url("assets/category-icons/hanger.svg"); }
.icon-jackets { --catalog-icon: url("assets/category-icons/jacket.svg"); }
.icon-pants { --catalog-icon: url("assets/category-icons/ruler-measure.svg"); }
.icon-bags { --catalog-icon: url("assets/category-icons/shopping-bag.svg"); }
.icon-clothing { --catalog-icon: url("assets/category-icons/shirt-sport.svg"); }
.icon-headwear { --catalog-icon: url("assets/category-icons/chef-hat.svg"); }
.icon-watches { --catalog-icon: url("assets/category-icons/device-watch.svg"); }
.icon-accessories { --catalog-icon: url("assets/category-icons/diamond.svg"); }
.icon-electronics { --catalog-icon: url("assets/category-icons/device-desktop.svg"); }
.icon-all-finds { --catalog-icon: url("assets/category-icons/clipboard-list.svg"); }

.category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }
.category-card { position: relative; display: grid; grid-template-columns: 1fr auto; gap: .45rem 1.1rem; padding: 1.1rem; overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.category-card::after { content: ""; position: absolute; right: -36px; top: -36px; width: 86px; height: 86px; border-radius: 50%; background: var(--card-accent, #fdecea); opacity: .9; }
.category-top { display: flex; gap: .75rem; align-items: baseline; grid-column: 1 / -1; }
.category-index { color: var(--muted); font-size: .68rem; font-weight: 800; letter-spacing: .1em; }
.category-card h3 { margin: 0; font-size: 1.5rem; }
.category-card p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.55; }
.category-card strong { color: var(--ink); }
.category-card .parent-note { color: #86642b; font-size: .74rem; font-style: italic; }
.card-link { grid-column: 2; grid-row: 2 / span 3; align-self: end; white-space: nowrap; color: var(--forest-2); font-size: .78rem; font-weight: 750; }
.tone-cobalt, .tone-plum, .tone-rose, .tone-coral { --card-accent: var(--brand-soft); }
.tone-mint, .tone-forest, .tone-sky, .tone-slate { --card-accent: var(--tint); }
.tone-amber, .tone-sand { --card-accent: var(--gold-soft); }

.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.steps-grid article { min-height: 205px; padding: 1.3rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.steps-grid article > span { display: inline-grid; place-items: center; width: 40px; height: 40px; margin-bottom: 1.2rem; color: var(--white); background: var(--forest-2); border-radius: var(--radius-sm); box-shadow: 0 7px 18px rgba(208,43,27,.18); font-size: .72rem; font-weight: 750; }
.steps-grid h3 { margin-bottom: .6rem; font-size: 1.55rem; }
.steps-grid p { color: var(--muted); font-size: .9rem; }
.evidence-panel { display: grid; grid-template-columns: .82fr 1.18fr; gap: 1.2rem; padding: clamp(1.25rem, 2.4vw, 2rem); color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.evidence-panel h2 { margin-bottom: .8rem; }
.evidence-panel > div > p { color: var(--muted); }
.evidence-panel > div > a { display: inline-block; margin-top: 1rem; color: var(--forest-2); font-weight: 700; }
.signal-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; margin: 0; padding: 0; list-style: none; }
.signal-list li { padding: .8rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.signal-list b, .signal-list span { display: block; }
.signal-list b { color: var(--forest-2); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.signal-list span { margin-top: .2rem; color: var(--muted); font-size: .82rem; }
.search-ideas-preview { display: grid; grid-template-columns: .72fr 1.28fr; gap: 1.5rem; }
.idea-columns { display: grid; gap: 1rem; }
.idea-columns article { padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.idea-columns h3 { margin-bottom: .35rem; }
.idea-columns p { color: var(--muted); font-size: .92rem; }
.inline-cta { grid-column: 2; justify-self: start; color: var(--forest-2); font-weight: 800; }
.route-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; }
.route-card { position: relative; min-height: 158px; padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); text-decoration: none; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.route-card:hover { transform: translateY(-2px); border-color: var(--brand-line); box-shadow: var(--shadow-hover); }
.route-card > span { display: block; padding-right: 1.5rem; font-family: inherit; font-size: 1.18rem; font-weight: 650; line-height: 1.25; }
.route-card p { margin-top: .5rem; color: var(--muted); font-size: .82rem; }
.route-card b { position: absolute; right: 1rem; top: 1rem; color: var(--forest-2); }
.closing-section { padding-block: clamp(2.5rem, 4vw, 3.5rem); color: var(--ink); background: var(--white); border-block: 1px solid var(--line); }
.closing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: end; }
.closing-grid h2 { margin-bottom: 0; }
.closing-grid p { color: var(--muted); }

.article-page { padding-bottom: 3rem; }
.article-page.wide-page { --max: 1120px; }
.compact-page { max-width: var(--max); }
.article-hero { width: 100%; max-width: var(--measure); margin-inline: auto; padding: clamp(1.8rem, 3.2vw, 2.8rem) 0 1.3rem; }
.article-hero .eyebrow { color: var(--forest-2); }
.article-hero h1 { margin-bottom: 1rem; font-size: clamp(1.95rem, 3.6vw, 2.85rem); }
.article-deck { max-width: var(--copy); color: var(--muted); font-size: clamp(1.05rem, 2.2vw, 1.3rem); }
.reviewed-note { margin-top: .65rem; color: #6e6e73; font-size: .78rem; font-weight: 650; letter-spacing: .04em; text-transform: uppercase; }
.article-page > .quick-answer { margin: 0 auto clamp(1.8rem, 3.5vw, 3rem); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: clamp(1.5rem, 3vw, 3rem); align-items: start; }
.article-body { min-width: 0; }
.article-body section { margin-bottom: clamp(1.75rem, 3.2vw, 2.75rem); scroll-margin-top: 5rem; }
.article-body h2 { margin-bottom: .85rem; font-size: clamp(1.5rem, 2.4vw, 2rem); }
.article-body p, .legal-page section p, .prose-card p { color: #424245; font-size: 1.03rem; line-height: 1.7; }
.article-body a { color: var(--forest-2); font-weight: 700; }
.article-aside { position: sticky; top: 5rem; display: grid; gap: .8rem; }
.aside-card { display: grid; padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.aside-card .section-tag { margin-bottom: .8rem; }
.aside-card a { padding: .6rem 0; color: #424245; border-top: 1px solid var(--line); text-decoration: none; font-size: .87rem; font-weight: 650; }
.aside-card a:hover { color: var(--forest-2); padding-left: .25rem; }
.aside-note { padding: 1.05rem; background: var(--white); border: 1px solid var(--brand-line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.aside-note b { color: var(--forest-2); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.aside-note p { margin-top: .4rem; font-family: inherit; font-size: 1rem; font-weight: 550; line-height: 1.5; }
.pull-quote { margin: 1.5rem 0; padding: 1.3rem; background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--forest-2); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.library-hero { max-width: var(--measure); }
.featured-reading { margin-bottom: clamp(2.25rem, 4vw, 3.5rem); }
.article-library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; }
.article-library-card { position: relative; min-height: 290px; display: flex; flex-direction: column; padding: 1.4rem; overflow: hidden; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); text-decoration: none; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.article-library-card::after { content: ""; position: absolute; right: -45px; top: -45px; width: 130px; height: 130px; background: var(--lime-soft); border-radius: 50%; }
.article-library-card:hover { transform: translateY(-2px); border-color: var(--brand-line); box-shadow: var(--shadow-hover); }
.article-library-card .article-topic { position: relative; z-index: 1; color: var(--forest-2); font-size: .7rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.article-library-card h3 { position: relative; z-index: 1; max-width: 280px; margin: 2.2rem 0 .7rem; font-size: 1.75rem; }
.article-library-card p { color: var(--muted); font-size: .9rem; line-height: 1.65; }
.article-library-card b { margin-top: auto; color: var(--forest-2); font-size: .82rem; }
.reading-library { padding-top: 0; }
.reading-library-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.reading-library-grid > a { display: grid; grid-template-columns: 42px 1fr; gap: .85rem; align-items: start; padding: 1.05rem; color: inherit; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); text-decoration: none; transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.reading-library-grid > a:hover { transform: translateY(-2px); border-color: var(--brand-line); box-shadow: var(--shadow-hover); }
.reading-library-grid > a > span { display: grid; place-items: center; width: 42px; height: 42px; color: var(--white); background: var(--forest-2); border-radius: var(--radius-sm); box-shadow: 0 6px 16px rgba(208,43,27,.16); font-size: .7rem; font-weight: 800; }
.reading-library-grid h3 { margin: 0 0 .3rem; font-size: 1.25rem; }
.reading-library-grid p { margin: 0; color: var(--muted); font-size: .83rem; line-height: 1.5; }
.problem-router { display: grid; grid-template-columns: .75fr 1.25fr; gap: 1.5rem; margin-bottom: 2.75rem; padding: clamp(1.25rem, 2.4vw, 2rem); color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.problem-router h2 { margin: 0; font-size: clamp(1.65rem, 2.5vw, 2.15rem); }
.problem-router ul { display: grid; gap: .7rem; margin: 0; padding: 0; list-style: none; }
.problem-router li { padding: .9rem 1rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.problem-router b, .problem-router a { display: block; }
.problem-router b { color: var(--ink); font-size: .9rem; }
.problem-router a { margin-top: .25rem; color: var(--forest-2); font-size: .8rem; font-weight: 700; }
.guide-table-wrap { margin: 1.15rem 0 1.5rem; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.guide-table { width: 100%; min-width: 660px; border-collapse: collapse; background: var(--white); font-size: .85rem; line-height: 1.45; }
.guide-table th, .guide-table td { padding: .75rem .9rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-table th { color: var(--forest-2); background: var(--white); border-bottom: 2px solid var(--brand-line); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.guide-table tbody tr:last-child td { border-bottom: 0; }
.guide-table td:first-child { color: var(--ink); font-weight: 750; }
.source-context-grid, .workflow-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; margin: 1.15rem 0; }
.source-context-grid article, .workflow-grid article { padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.source-context-grid h3, .workflow-grid h3 { margin-bottom: .45rem; }
.source-context-grid p, .workflow-grid p { color: var(--muted); font-size: .86rem; line-height: 1.58; }
.workflow-grid span { color: var(--forest-2); font-size: .68rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.decision-note { margin: 1.15rem 0; padding: 1.05rem; background: var(--white); border: 1px solid var(--brand-line); border-left: 4px solid var(--forest-2); border-radius: var(--radius); }
.decision-note > span { display: block; margin-bottom: .35rem; color: var(--forest-2); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.decision-note p { margin: 0; color: var(--ink); font-size: .95rem; }
.outcome-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; margin: 1.15rem 0; }
.outcome-grid article { padding: 1.1rem; background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--amber); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.outcome-grid b { color: var(--forest); }
.outcome-grid p { margin-top: .35rem; color: var(--muted); font-size: .82rem; line-height: 1.5; }
.coverage-status article:nth-child(1) { border-top-color: var(--amber); }
.coverage-status article:nth-child(2) { border-top-color: #8e8e93; }
.coverage-status article:nth-child(3) { border-top-color: var(--forest-2); }
.evidence-matrix { display: grid; gap: .7rem; margin: 1.15rem 0; }
.evidence-matrix article { display: grid; grid-template-columns: 110px 1fr 1.3fr; gap: .85rem; align-items: start; padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.evidence-matrix article > span { color: var(--forest-2); font-size: .7rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.evidence-matrix h3 { margin: 0; font-size: 1.25rem; }
.evidence-matrix ul { margin: 0; padding-left: 1.1rem; color: var(--muted); font-size: .82rem; line-height: 1.55; }
.note-template { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; margin: 1.15rem 0; }
.note-template > div { padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.note-template span { display: block; margin-bottom: .4rem; color: var(--forest-2); font-size: .68rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.note-template p { margin: 0; color: var(--ink); font-family: inherit; font-size: 1.04rem; font-weight: 550; line-height: 1.5; }
.pull-quote p { margin: 0; color: var(--ink); font: 650 1.3rem/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif; }
.number-list { list-style: none; counter-reset: row; margin: 1.15rem 0 0; padding: 0; }
.number-list li { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; padding: .85rem 0; border-top: 1px solid var(--line); }
.number-list strong::before { counter-increment: row; content: "0" counter(row) "/ "; color: var(--forest-2); font-size: .75rem; letter-spacing: .08em; }
.number-list span { color: var(--muted); }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.comparison article { padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); }
.comparison .good { background: var(--white); border-color: var(--line); border-top: 3px solid var(--amber); }
.comparison .weak { background: var(--white); border-color: var(--line); border-top: 3px solid var(--forest-2); }
.comparison article > span { display: block; margin-bottom: .65rem; color: var(--forest); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.comparison h3 { font-size: 1.2rem; line-height: 1.35; }
.comparison p { margin-bottom: 0; font-size: .88rem; }
.article-cta { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem; margin-top: 1.15rem; }
.article-cta > span { color: var(--muted); font-size: .76rem; }
.editorial-split { margin-bottom: clamp(2.25rem, 4vw, 3.5rem); }
.editorial-split p { color: var(--muted); font-size: 1.04rem; }
.decision-grid, .qc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; }
.decision-grid article, .qc-grid article { padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.decision-grid h3, .qc-grid h3 { margin-bottom: .4rem; }
.decision-grid p, .qc-grid p { color: var(--muted); font-size: .9rem; }
.mistake-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 1.5rem; padding-inline: clamp(1.25rem, 2.4vw, 2rem); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.mistake-panel > div p { color: var(--muted); }
.check-lines { margin: 0; padding: 0; list-style: none; }
.check-lines li { padding: .75rem 0 .75rem 1.5rem; border-bottom: 1px solid var(--line); position: relative; }
.check-lines li::before { content: "—"; position: absolute; left: 0; color: var(--forest-2); }
.preflight { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: end; margin-top: 1.15rem; padding: clamp(1.4rem, 3vw, 2.3rem); color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.preflight ol { margin: 0; padding-left: 1.2rem; color: var(--muted); }
.preflight .button { justify-self: start; }
.query-card { display: grid; gap: .5rem; margin: 1.15rem 0; padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.query-card span { font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; }
.query-card code { padding: .55rem .7rem; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: 8px; white-space: normal; }
.query-note { margin-top: -.35rem; color: var(--muted); font-size: .82rem; }
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; }
.mini-grid article { padding: .9rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.mini-grid h3 { margin-bottom: .3rem; font-size: 1.15rem; }
.mini-grid p { font-size: .83rem; }
.bullet-list { padding-left: 1.2rem; }
.bullet-list li { margin-bottom: .7rem; padding-left: .35rem; color: #424245; }
.side-search { padding: 1.1rem; background: var(--forest); border-radius: var(--radius); }
.side-search label, .side-search small { display: block; color: var(--white); }
.side-search label { margin-bottom: .5rem; font-weight: 750; }
.side-search input { width: 100%; padding: .7rem; background: var(--white); border: 0; border-radius: 8px; }
.side-search button { width: 100%; margin-top: .5rem; padding: .65rem; color: var(--white); background: var(--forest-2); border: 0; border-radius: 999px; font-weight: 700; cursor: pointer; }
.side-search small { margin-top: .5rem; color: #c7c7cc; font-size: .68rem; }
.checklist-board { margin-bottom: 2.25rem; overflow: hidden; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.board-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; padding: 1.4rem; border-bottom: 1px solid var(--line); }
.board-head h2 { max-width: 650px; margin: 0; }
.board-head > b { flex: 0 0 auto; padding: .55rem .7rem; color: var(--white); background: var(--forest-2); border-radius: 8px; font-size: .8rem; }
.checklist-board ul { margin: 0; padding: .35rem 1.4rem 1.2rem; list-style: none; }
.checklist-board li { display: grid; grid-template-columns: 30px 1fr; gap: .75rem; align-items: center; padding: .72rem 0; border-bottom: 1px solid var(--line); }
.checklist-board li > span { width: 24px; height: 24px; border: 2px solid #d9aa54; border-radius: 5px; }
.checklist-board li p { margin: 0; color: var(--ink); }
.score-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .75rem; }
.score-grid article { padding: 1.05rem; background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--forest-2); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.score-grid b { display: block; margin-bottom: 1rem; color: var(--forest-2); font-size: 1.35rem; }
.score-grid h3 { font-size: 1.15rem; }
.score-grid p { color: var(--muted); font-size: .84rem; }
.save-banner { display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: center; padding: clamp(1.4rem, 3vw, 2.3rem); background: var(--white); border: 1px solid var(--brand-line); border-left: 4px solid var(--forest-2); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.save-banner span { color: var(--forest-2); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.save-banner h2 { margin: .5rem 0 0; font-size: clamp(1.5rem, 2.7vw, 2.15rem); }
.save-banner a { color: var(--forest); font-weight: 800; white-space: nowrap; }
.next-grid { display: grid; grid-template-columns: .6fr 1.4fr; gap: 1.5rem; }
.next-grid .route-grid { grid-template-columns: repeat(2, 1fr); }
.weight-bands { display: grid; gap: .75rem; }
.weight-bands article { padding: 1.1rem 1.2rem; background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--forest-2); border-radius: var(--radius-sm) var(--radius) var(--radius) var(--radius-sm); box-shadow: var(--shadow-sm); }
.weight-bands span { color: var(--forest-2); font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.weight-bands h3 { margin: .2rem 0 .35rem; }
.weight-bands p { font-size: .87rem; }
.label-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .65rem; margin-top: 1.3rem; }
.label-grid div { padding: 1rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
.label-grid b, .label-grid span { display: block; }
.label-grid span { margin-top: .25rem; color: var(--muted); font-size: .82rem; }
.red-flag-list { margin: 1.5rem 0 0; padding: 0; list-style: none; }
.red-flag-list li { display: grid; grid-template-columns: .75fr 1.25fr; gap: 1rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.red-flag-list b { color: var(--forest-2); }
.red-flag-list span { color: var(--muted); }
.faq-list { width: 100%; max-width: var(--measure); margin-inline: auto; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary { position: relative; padding: 1rem 3rem 1rem 0; cursor: pointer; list-style: none; font: 650 1.16rem/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: .5rem; top: .75rem; display: grid; place-items: center; width: 30px; height: 30px; color: var(--forest-2); background: var(--lime-soft); border-radius: 50%; font: 700 1.2rem ui-sans-serif, sans-serif; }
.faq-item[open] summary::after { content: "−"; }
.faq-item div { padding: 0 4rem 1rem 0; }
.faq-item p { color: var(--muted); }
.faq-route { display: grid; grid-template-columns: 1fr auto; gap: 1.25rem; align-items: center; margin-top: 2rem; padding: clamp(1.25rem, 2.4vw, 2rem); color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.faq-route h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.faq-route p { color: var(--muted); }
.prose-card { margin-bottom: .8rem; padding: clamp(1.2rem, 3vw, 1.9rem); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.prose-card h2 { font-size: 1.65rem; }
.prose-card > p, .legal-page section > p { max-width: var(--copy); }
.boundary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; margin: 1.3rem 0; }
.boundary-grid article { padding: 1.1rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.boundary-grid span { color: var(--forest-2); font-size: .7rem; font-weight: 800; }
.boundary-grid h2 { margin: .75rem 0 .4rem; font-size: 1.22rem; }
.boundary-grid p { color: var(--muted); font-size: .88rem; }
.center-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .7rem; margin-top: 1.5rem; }
.contact-panel { display: grid; grid-template-columns: 1fr .7fr; gap: 1.5rem; padding: clamp(1.3rem, 3vw, 2.3rem); color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.contact-panel h2 { font-size: 1.9rem; }
.contact-panel p { color: var(--muted); }
.contact-route { display: grid; align-content: start; }
.contact-route a { padding: .9rem 0; color: var(--forest-2); border-bottom: 1px solid var(--line); font-weight: 750; }
.legal-page section { margin-bottom: 1.4rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.legal-page section h2 { font-size: 1.55rem; }
.not-found { min-height: 64vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding-block: 5rem; text-align: center; }
.not-found h1 { max-width: 720px; }
.not-found > p:not(.eyebrow) { max-width: 580px; color: var(--muted); font-size: 1.1rem; }

.site-footer { color: var(--ink); background: var(--white); border-top: 1px solid var(--line); }
.footer-inner { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; padding-block: 2rem 1rem; }
.footer-about { display: grid; grid-template-columns: .45fr 1.55fr; gap: 1.5rem; padding-bottom: 1.3rem; }
.footer-mark { align-self: start; color: var(--ink); font: 700 1.6rem/1 ui-sans-serif, sans-serif; text-decoration: none; }
.footer-mark span { color: #e45c4c; }
.footer-about p { max-width: var(--copy); color: var(--muted); font-size: .85rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .4rem .85rem; padding-block: 1rem; border-block: 1px solid var(--line); }
.footer-links a { color: #424245; font-size: .78rem; }
.footer-base { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1rem; color: var(--muted); font-size: .7rem; }

@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .mobile-menu { display: block; }
  .catalog-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .article-library-grid { grid-template-columns: 1fr; }
  .article-library-card { min-height: 225px; }
  .article-library-card h3 { margin-top: 1.7rem; }
  .problem-router { grid-template-columns: 1fr; }
  .evidence-matrix article { grid-template-columns: 95px 1fr; }
  .evidence-matrix ul { grid-column: 2; }
  .split-heading, .editorial-split, .evidence-panel, .search-ideas-preview, .closing-grid, .mistake-panel, .preflight, .next-grid { grid-template-columns: 1fr; }
  .inline-cta { grid-column: auto; }
  .route-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; grid-template-columns: repeat(2, 1fr); }
  .score-grid { grid-template-columns: repeat(2, 1fr); }
  .save-banner, .faq-route { grid-template-columns: 1fr; }
  .save-banner a { white-space: normal; }
}

@media (max-width: 680px) {
  body { font-size: 15px; }
  .header-inner { min-height: 58px; }
  .hero-section { min-height: auto; }
  .hero-search-shell { padding-block: 2.8rem 2.15rem; }
  .hero-kicker { font-size: .75rem; letter-spacing: .01em; }
  .hero-search-shell h1 { font-size: clamp(2.1rem, 9vw, 2.75rem); }
  .hero-lead { max-width: 34rem; margin-bottom: 1.3rem; font-size: .94rem; }
  .hero-product-search { min-height: 62px; grid-template-columns: minmax(0, 1fr) 108px; border-width: 1px; }
  .hero-search-field input { height: 56px; padding-left: 3.35rem; padding-right: .6rem; font-size: .86rem; }
  .search-lens { left: 1.2rem; width: 20px; height: 20px; border-width: 2px; }
  .search-lens::after { width: 8px; height: 2px; right: -7px; bottom: -4px; }
  .hero-product-search button { padding-inline: .65rem; font-size: .9rem; }
  .hero-search-note { font-size: .69rem; }
  .hero-flow { gap: .35rem; margin-top: 1.3rem; }
  .hero-flow::before { top: 15px; }
  .flow-marker { width: 30px; height: 30px; border-width: 3px; }
  .hero-flow strong { font-size: .75rem; line-height: 1.25; }
  .hero-flow small { display: none; }
  .trust-note { margin-top: 1.05rem; padding-top: .85rem; font-size: .69rem; text-align: left; }
  .hero-secondary-links { gap: .35rem .8rem; }
  .hero-secondary-links a { font-size: .72rem; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .catalog-heading { margin-bottom: 1.2rem; }
  .catalog-heading h2 { font-size: clamp(1.7rem, 7vw, 2.15rem); }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }
  .catalog-card { min-height: 165px; padding: .9rem .65rem .8rem; border-radius: var(--radius); }
  .catalog-icon { width: 58px; height: 58px; margin-bottom: .8rem; border-radius: var(--radius); }
  .catalog-icon::before { width: 25px; height: 25px; }
  .catalog-card strong { font-size: .94rem; }
  .catalog-card small { font-size: .7rem; }
  .catalog-note { margin-top: 1rem; font-size: .7rem; }
  .reading-library-grid, .source-context-grid, .workflow-grid, .note-template { grid-template-columns: 1fr; }
  .problem-router { margin-bottom: 2.2rem; }
  .outcome-grid { grid-template-columns: 1fr; }
  .evidence-matrix article { grid-template-columns: 1fr; }
  .evidence-matrix ul { grid-column: auto; }
  .guide-table { min-width: 620px; }
  .category-grid, .steps-grid, .signal-list, .route-grid, .comparison, .decision-grid, .qc-grid, .mini-grid, .label-grid, .boundary-grid, .next-grid .route-grid { grid-template-columns: 1fr; }
  .category-card { grid-template-columns: 1fr; }
  .card-link { grid-column: auto; grid-row: auto; justify-self: start; margin-top: .35rem; }
  .steps-grid article { min-height: 0; }
  .steps-grid article > span { margin-bottom: 1rem; }
  .article-hero { padding-top: 1.7rem; }
  .article-hero h1 { font-size: clamp(1.8rem, 7.8vw, 2.3rem); }
  .article-aside { grid-template-columns: 1fr; }
  .number-list li, .red-flag-list li { grid-template-columns: 1fr; gap: .25rem; }
  .preflight, .contact-panel { grid-template-columns: 1fr; }
  .board-head { align-items: start; }
  .score-grid { grid-template-columns: 1fr; }
  .footer-about { grid-template-columns: 1fr; gap: 1rem; }
  .footer-base { flex-direction: column; }
  .faq-item div { padding-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Customer-initiated WhatsApp contact */
#ptochina-whatsapp-float {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 2147483000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border: 0;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(9, 46, 28, .3);
  transition: transform .18s ease, box-shadow .18s ease;
}

#ptochina-whatsapp-float:hover,
#ptochina-whatsapp-float:focus-visible {
  color: #fff;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 16px 36px rgba(9, 46, 28, .38);
  outline: 3px solid #17231d;
  outline-offset: 3px;
}

#ptochina-whatsapp-float img {
  display: block;
  width: 32px;
  height: 32px;
}

#ptochina-whatsapp-float .whatsapp-float-label {
  position: absolute;
  top: 50%;
  right: 68px;
  width: max-content;
  max-width: 210px;
  padding: .55rem .7rem;
  border-radius: 9px;
  background: #17231d;
  color: #fff;
  font: 600 13px/1.2 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity .18s ease, visibility .18s ease;
}

#ptochina-whatsapp-float:hover .whatsapp-float-label,
#ptochina-whatsapp-float:focus-visible .whatsapp-float-label {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 600px) {
  #ptochina-whatsapp-float {
    right: max(14px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
    width: 54px;
    height: 54px;
  }

  #ptochina-whatsapp-float .whatsapp-float-label {
    display: none;
  }
}

@media print {
  #ptochina-whatsapp-float {
    display: none !important;
  }
}