:root {
  --blue: #2980FE;
  --blue-dark: #145FC4;
  --blue-soft: #EAF3FF;
  --blue-pale: #F6F9FF;
  --gray-soft: #F7F9FC;
  --white: #FFFFFF;
  --ink: #172033;
  --body: #465266;
  --muted: #758195;
  --line: #DCE6F2;
  --safe: #EAF8F2;
  --warn: #FFF6E8;
  --footer: #0F2747;
  --shadow: 0 18px 50px rgba(26, 72, 125, .10);
  --shadow-soft: 0 10px 30px rgba(26, 72, 125, .07);
  --radius-sm: 14px;
  --radius: 20px;
  --radius-lg: 28px;
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "PingFang TC", Arial, sans-serif; line-height: 1.7; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(41, 128, 254, .35); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
button, summary { font: inherit; }
button { border: 0; }
summary { cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; }
p:last-child { margin-bottom: 0; }
main { min-height: 60vh; }
.container { width: var(--container); margin-inline: auto; }
.section { padding: 92px 0; position: relative; }
.section--soft { background: var(--gray-soft); }
.section--blue { background: linear-gradient(135deg, var(--blue-pale), #eef7ff 55%, #ffffff); }
.section--safe { background: linear-gradient(135deg, var(--safe), #f7fffb); }
.section--warn { background: linear-gradient(135deg, var(--warn), #fffdf8); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 40px; }
.section-head > div { max-width: 760px; }
.section-head h2 { font-size: clamp(30px, 4vw, 48px); margin-bottom: 14px; }
.section-head p { color: var(--body); margin-bottom: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-dark); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.eyebrow::before { content: ""; width: 28px; height: 3px; border-radius: 9px; background: var(--blue); }
.text-link { color: var(--blue-dark); font-weight: 760; display: inline-flex; align-items: center; gap: 7px; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.primary-link, .secondary-link, .download-btn { min-height: 48px; padding: 11px 20px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; line-height: 1; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.download-btn, .primary-link { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); box-shadow: 0 10px 24px rgba(41, 128, 254, .24); }
.secondary-link { color: var(--blue-dark); background: var(--white); border: 1px solid var(--line); }
.download-btn:hover, .primary-link:hover, .secondary-link:hover { transform: translateY(-2px); }
.tag { display: inline-flex; align-items: center; min-height: 32px; padding: 5px 11px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-weight: 750; font-size: 13px; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.92); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(220,230,242,.88); }
.header-shell { width: min(1380px, calc(100% - 28px)); min-height: 76px; margin-inline: auto; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 24px; }
.brand-link { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand-link img { width: 142px; max-height: 42px; object-fit: contain; object-position: left center; }
.desktop-nav { display: flex; align-items: center; justify-content: center; min-width: 0; gap: 2px; white-space: nowrap; }
.nav-link, .nav-dropdown > summary { min-height: 44px; padding: 10px 11px; border-radius: 12px; display: inline-flex; align-items: center; color: #31405a; font-size: 14px; font-weight: 750; }
.nav-dropdown > summary::after { content: "⌄"; margin-left: 5px; color: var(--muted); font-size: 12px; transition: transform .2s ease; }
.nav-dropdown[open] > summary::after { transform: rotate(180deg); }
.nav-link:hover, .nav-dropdown > summary:hover, .nav-dropdown[open] > summary, .nav-link.is-current, .nav-dropdown.is-current > summary { color: var(--blue-dark); background: var(--blue-soft); }
.nav-dropdown { position: static; }
.mega-menu { position: absolute; top: calc(100% + 1px); left: 50%; transform: translateX(-50%); width: min(1000px, calc(100vw - 40px)); padding: 24px; background: rgba(255,255,255,.98); border: 1px solid var(--line); border-radius: 0 0 24px 24px; box-shadow: var(--shadow); display: grid; grid-template-columns: .9fr 2fr; gap: 22px; white-space: normal; }
.mega-menu--wide { width: min(1120px, calc(100vw - 40px)); }
.mega-menu--small { width: min(720px, calc(100vw - 40px)); grid-template-columns: 1fr; }
.mega-intro { padding: 22px; background: linear-gradient(145deg, var(--blue-pale), #fff); border: 1px solid var(--line); border-radius: var(--radius); }
.mega-intro strong { display: block; font-size: 22px; margin-bottom: 10px; }
.mega-intro p { color: var(--body); font-size: 14px; }
.mega-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.mega-links--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mega-links a { padding: 15px; border-radius: 14px; border: 1px solid transparent; transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.mega-links a:hover { background: var(--blue-pale); border-color: var(--line); transform: translateY(-1px); }
.mega-links strong, .mega-links span { display: block; }
.mega-links strong { font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.mega-links span { font-size: 13px; color: var(--muted); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 9px; }
.header-actions .download-btn { min-height: 42px; padding: 10px 17px; font-size: 14px; white-space: nowrap; }
.more-menu { position: relative; }
.more-menu > summary { min-height: 42px; padding: 9px 13px; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; font-weight: 750; color: var(--body); }
.more-menu__panel { position: absolute; right: 0; top: calc(100% + 12px); width: 180px; padding: 8px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-soft); }
.more-menu__panel a { display: block; padding: 10px 12px; border-radius: 10px; font-size: 14px; }
.more-menu__panel a:hover { background: var(--blue-pale); color: var(--blue-dark); }
.mobile-menu-button { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-soft); display: none; align-items: center; justify-content: center; flex-direction: column; gap: 4px; cursor: pointer; }
.mobile-menu-button span:not(.sr-only) { width: 20px; height: 2px; border-radius: 4px; background: var(--blue-dark); }
.mobile-menu { position: fixed; inset: 0; z-index: 1500; visibility: hidden; pointer-events: none; }
.mobile-menu.is-open { visibility: visible; pointer-events: auto; }
.mobile-menu__backdrop { position: absolute; inset: 0; background: rgba(15,39,71,.48); opacity: 0; transition: opacity .25s ease; }
.mobile-menu.is-open .mobile-menu__backdrop { opacity: 1; }
.mobile-menu__panel { position: absolute; inset: 0 0 0 auto; width: min(520px, 100%); background: #fff; transform: translateX(100%); transition: transform .28s ease; overflow-y: auto; overscroll-behavior: contain; padding-bottom: 32px; }
.mobile-menu.is-open .mobile-menu__panel { transform: translateX(0); }
.mobile-menu__head { min-height: 74px; padding: 12px 18px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(14px); z-index: 2; }
.mobile-menu__close { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-soft); color: var(--blue-dark); font-size: 28px; cursor: pointer; }
.mobile-menu__quick { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 18px; }
.mobile-menu__quick > a:not(.download-btn) { min-height: 48px; border: 1px solid var(--line); border-radius: 999px; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.mobile-menu__groups { padding: 0 18px; }
.mobile-menu__groups details { border-top: 1px solid var(--line); }
.mobile-menu__groups details:last-child { border-bottom: 1px solid var(--line); }
.mobile-menu__groups summary { min-height: 56px; display: flex; align-items: center; justify-content: space-between; font-weight: 850; }
.mobile-menu__groups summary::after { content: "+"; color: var(--blue); font-size: 22px; }
.mobile-menu__groups details[open] summary::after { content: "−"; }
.mobile-menu__groups details > div { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 0 0 16px; }
.mobile-menu__groups a { min-height: 46px; padding: 10px 12px; border-radius: 11px; background: var(--gray-soft); color: var(--body); display: flex; align-items: center; }

.hero { padding: 78px 0 52px; background: radial-gradient(circle at 85% 20%, rgba(41,128,254,.18), transparent 26%), linear-gradient(140deg, #fff, var(--blue-pale) 60%, #f9fcff); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr); align-items: center; gap: 48px; }
.hero h1 { font-size: clamp(44px, 6vw, 72px); margin: 0 0 22px; max-width: 780px; }
.hero .lead { color: var(--body); font-size: clamp(18px, 2vw, 22px); max-width: 760px; margin-bottom: 18px; }
.hero .hero-note { color: var(--muted); max-width: 700px; margin-bottom: 28px; }
.hero-visual { position: relative; min-height: 500px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 410px; height: 410px; border-radius: 50%; background: linear-gradient(135deg, rgba(41,128,254,.24), rgba(255,255,255,.7)); filter: blur(2px); }
.hero-visual img { position: relative; z-index: 1; width: min(460px, 92%); max-height: 520px; object-fit: contain; }
.floating-label { position: absolute; z-index: 2; padding: 10px 14px; background: rgba(255,255,255,.90); border: 1px solid rgba(220,230,242,.9); box-shadow: var(--shadow-soft); border-radius: 14px; color: var(--blue-dark); font-weight: 850; font-size: 14px; }
.floating-label--a { top: 14%; left: 2%; }
.floating-label--b { right: 0; top: 42%; }
.floating-label--c { left: 10%; bottom: 12%; }
.hero-links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 22px; }

.principles { width: var(--container); margin: 0 auto; transform: translateY(22px); display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; position: relative; z-index: 4; }
.principle { padding: 24px; border-right: 1px solid var(--line); }
.principle:last-child { border-right: 0; }
.principle strong { display: block; font-size: 17px; margin-bottom: 7px; }
.principle p { color: var(--muted); font-size: 14px; }

.category-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.category-card { position: relative; overflow: hidden; border: 1px solid var(--line); background: #fff; border-radius: var(--radius); padding: 24px; min-height: 210px; display: flex; flex-direction: column; box-shadow: var(--shadow-soft); }
.category-card::after { content: attr(data-index); position: absolute; right: 16px; top: 3px; font-size: 54px; line-height: 1; font-weight: 900; color: rgba(41,128,254,.09); }
.category-card h3 { font-size: 22px; margin: 24px 0 10px; }
.category-card p { color: var(--body); font-size: 14px; flex: 1; }
.category-card--featured { min-height: 250px; background: linear-gradient(145deg, var(--blue-dark), var(--blue)); color: #fff; border: 0; }
.category-card--featured p, .category-card--featured .text-link { color: rgba(255,255,255,.84); }
.category-card--featured::after { color: rgba(255,255,255,.14); }
.category-row-tools { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.category-row-tools .category-card { min-height: 175px; border-left: 4px solid var(--blue); box-shadow: none; }
.category-row-wide { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.category-row-wide .category-card { min-height: 190px; background: var(--blue-pale); box-shadow: none; }

.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: path; }
.path-step { position: relative; padding: 25px 24px 24px 78px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); min-height: 170px; }
.path-step::before { counter-increment: path; content: counter(path, decimal-leading-zero); position: absolute; left: 22px; top: 24px; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: var(--blue); color: #fff; font-weight: 900; }
.path-step::after { content: ""; position: absolute; width: 18px; height: 2px; right: -19px; top: 45px; background: var(--line); }
.path-step:nth-child(3n)::after, .path-step:last-child::after { display: none; }
.path-step h3 { font-size: 19px; margin-bottom: 8px; }
.path-step p { color: var(--body); font-size: 14px; }

.split-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 56px; }
.split-layout--reverse .media-panel { order: 2; }
.media-panel { border-radius: var(--radius-lg); min-height: 420px; background: linear-gradient(145deg, var(--blue-pale), #fff); border: 1px solid var(--line); display: grid; place-items: center; padding: 34px; overflow: hidden; }
.media-panel img { max-height: 430px; object-fit: contain; }
.copy-panel h2 { font-size: clamp(32px, 4vw, 48px); margin-bottom: 18px; }
.copy-panel > p { color: var(--body); }
.feature-list { display: grid; gap: 12px; margin: 24px 0 28px; padding: 0; list-style: none; }
.feature-list li { padding: 13px 15px 13px 42px; border-radius: 14px; background: var(--gray-soft); color: var(--body); position: relative; }
.feature-list li::before { content: "✓"; position: absolute; left: 15px; top: 12px; color: var(--blue); font-weight: 900; }

.tool-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
.tool-main { padding: 34px; border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--blue-dark), #2778e8); color: #fff; min-height: 430px; display: flex; flex-direction: column; }
.tool-main .eyebrow, .tool-main .text-link { color: #fff; }
.tool-main p { color: rgba(255,255,255,.82); }
.tool-main ul { margin: 20px 0 28px; padding-left: 20px; }
.tool-stack { display: grid; gap: 18px; }
.tool-card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.tool-card h3 { margin-bottom: 8px; }
.tool-card p { color: var(--body); font-size: 14px; }

.check-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 44px; align-items: center; }
.check-panel { background: #fff; border: 1px solid rgba(33,142,100,.20); border-radius: var(--radius-lg); padding: 26px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.check-item { padding: 15px 16px 15px 42px; background: #f6fcf9; border-radius: 13px; position: relative; color: #2e5d4a; font-weight: 720; }
.check-item::before { content: "✓"; position: absolute; left: 15px; color: #168457; font-weight: 900; }
.critical-note { margin-top: 20px; padding: 18px; border-radius: 16px; background: var(--warn); color: #7a5316; border: 1px solid #f2d9aa; }

.dual-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.info-card { padding: 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.info-card h3 { font-size: 24px; }
.info-card p { color: var(--body); }
.info-card--blue { background: var(--blue-pale); }
.info-card--safe { background: var(--safe); }
.info-card--warn { background: var(--warn); }
.topic-list { margin: 18px 0 22px; padding: 0; list-style: none; display: grid; gap: 9px; }
.topic-list li { padding-left: 20px; position: relative; color: var(--body); }
.topic-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }

.knowledge-band { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; padding: 34px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-soft); }
.knowledge-main { padding: 10px; }
.knowledge-main h2 { font-size: clamp(30px, 4vw, 46px); }
.knowledge-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.knowledge-list a { min-height: 92px; padding: 16px; border-radius: 14px; background: var(--gray-soft); border: 1px solid transparent; }
.knowledge-list a:hover { border-color: var(--line); background: var(--blue-pale); }
.knowledge-list strong, .knowledge-list span { display: block; }
.knowledge-list span { color: var(--muted); font-size: 13px; margin-top: 4px; }

.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.testimonial { margin: 0; padding: 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); min-height: 210px; }
.testimonial p { color: var(--body); }
.testimonial cite { font-style: normal; font-weight: 800; color: var(--blue-dark); }

.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 16px; background: #fff; overflow: hidden; }
.faq-list summary { min-height: 58px; padding: 16px 52px 16px 20px; display: flex; align-items: center; font-weight: 800; position: relative; }
.faq-list summary::after { content: "+"; position: absolute; right: 20px; color: var(--blue); font-size: 24px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { padding: 0 20px 20px; color: var(--body); }

.cta-band { padding: 50px; border-radius: var(--radius-lg); background: linear-gradient(125deg, var(--footer), #145FC4); color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; }
.cta-band h2 { font-size: clamp(30px, 4vw, 46px); margin-bottom: 12px; }
.cta-band p { color: rgba(255,255,255,.78); max-width: 720px; }
.cta-band .download-btn { background: #fff; color: var(--blue-dark); box-shadow: none; }

.page-hero { padding: 76px 0 62px; background: linear-gradient(145deg, #fff, var(--blue-pale)); border-bottom: 1px solid var(--line); }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 44px; }
.page-hero h1 { font-size: clamp(40px, 5vw, 62px); margin-bottom: 18px; }
.page-hero .lead { font-size: 19px; color: var(--body); max-width: 760px; }
.page-hero .mini-nav { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0; }
.page-hero .mini-nav a { padding: 7px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--blue-dark); font-weight: 740; font-size: 13px; }
.page-hero-visual { min-height: 360px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: rgba(255,255,255,.72); display: grid; place-items: center; padding: 28px; }
.page-hero-visual img { max-height: 360px; object-fit: contain; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.content-card { padding: 26px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.content-card h2, .content-card h3 { font-size: 22px; }
.content-card p { color: var(--body); }
.content-card--accent { background: var(--blue-pale); }
.content-card--safe { background: var(--safe); }
.content-card--warn { background: var(--warn); }
.numbered-list { display: grid; gap: 14px; counter-reset: num; }
.numbered-item { position: relative; padding: 22px 22px 22px 76px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.numbered-item::before { counter-increment: num; content: counter(num); position: absolute; left: 22px; top: 22px; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--blue-soft); color: var(--blue-dark); font-weight: 900; }
.numbered-item h3 { margin-bottom: 6px; font-size: 19px; }
.numbered-item p { color: var(--body); }
.data-table { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.data-table th, .data-table td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table th { background: var(--blue-pale); color: var(--blue-dark); }
.data-table tr:last-child td { border-bottom: 0; }
.callout { padding: 24px; border-radius: var(--radius); background: var(--warn); border: 1px solid #f4d9a9; color: #6d4b18; }
.callout--safe { background: var(--safe); border-color: #cce9dc; color: #265d46; }
.inline-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.inline-links a { min-height: 42px; padding: 9px 14px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-weight: 760; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 34px; align-items: start; }
.article-main { min-width: 0; }
.article-main > section { margin-bottom: 34px; }
.article-main h2 { font-size: 30px; margin-bottom: 14px; }
.article-main p, .article-main li { color: var(--body); }
.side-nav { position: sticky; top: 100px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--blue-pale); }
.side-nav strong { display: block; margin-bottom: 10px; }
.side-nav a { display: block; padding: 8px 0; color: var(--blue-dark); font-weight: 720; }
.support-map { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.support-map a { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.support-map strong, .support-map span { display: block; }
.support-map span { color: var(--muted); margin-top: 6px; }

.site-footer { background: var(--footer); color: #fff; padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 34px; }
.brand-link--footer img { filter: brightness(0) invert(1); }
.footer-brand p { color: rgba(255,255,255,.68); font-size: 14px; margin: 18px 0 22px; max-width: 350px; }
.footer-brand .download-btn { background: #fff; color: var(--blue-dark); box-shadow: none; }
.footer-column h2 { font-size: 15px; margin-bottom: 14px; }
.footer-column a { display: block; color: rgba(255,255,255,.68); font-size: 14px; padding: 4px 0; }
.footer-column a:hover { color: #fff; }
.footer-risk { margin-top: 42px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12); display: grid; grid-template-columns: 100px 1fr; gap: 20px; }
.footer-risk p { color: rgba(255,255,255,.64); font-size: 13px; }
.footer-bottom { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.55); font-size: 13px; }

@media (max-width: 1200px) {
  .desktop-nav { justify-content: flex-start; overflow: hidden; }
  .nav-link, .nav-dropdown > summary { padding-inline: 8px; font-size: 13px; }
  .more-menu { display: none; }
  .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  :root { --container: min(calc(100% - 32px), 900px); }
  .desktop-nav, .more-menu { display: none; }
  .header-shell { grid-template-columns: auto 1fr; gap: 14px; }
  .header-actions { grid-column: 2; }
  .mobile-menu-button { display: flex; }
  .hero-grid, .page-hero-grid, .split-layout, .check-layout, .knowledge-band, .article-layout { grid-template-columns: 1fr; }
  .hero-visual { min-height: 430px; }
  .principles { grid-template-columns: 1fr 1fr; }
  .principle:nth-child(2) { border-right: 0; }
  .principle:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-row-tools, .category-row-wide { grid-template-columns: repeat(2, 1fr); }
  .path-grid { grid-template-columns: repeat(2, 1fr); }
  .path-step::after { display: none; }
  .tool-layout { grid-template-columns: 1fr; }
  .tool-stack { grid-template-columns: repeat(3, 1fr); }
  .split-layout--reverse .media-panel { order: initial; }
  .content-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .side-nav { position: static; }
}

@media (max-width: 720px) {
  :root { --container: calc(100% - 28px); }
  .section { padding: 68px 0; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 14px; margin-bottom: 28px; }
  .header-shell { min-height: 68px; width: calc(100% - 20px); }
  .brand-link img { width: 116px; max-height: 36px; }
  .header-actions { gap: 7px; }
  .header-actions .download-btn { min-height: 40px; padding: 9px 13px; font-size: 13px; }
  .mobile-menu-button { width: 40px; height: 40px; }
  .hero { padding: 54px 0 32px; }
  .hero-grid { gap: 20px; }
  .hero h1 { font-size: clamp(38px, 12vw, 54px); }
  .hero .lead { font-size: 17px; }
  .hero-visual { min-height: 360px; }
  .hero-visual::before { width: 300px; height: 300px; }
  .floating-label { font-size: 12px; padding: 8px 10px; }
  .principles { grid-template-columns: 1fr; transform: translateY(18px); }
  .principle, .principle:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .principle:last-child { border-bottom: 0; }
  .category-grid, .category-row-tools, .category-row-wide, .path-grid, .dual-cards, .content-grid, .testimonial-grid, .support-map { grid-template-columns: 1fr; }
  .category-card, .category-card--featured { min-height: auto; }
  .path-step { padding-left: 70px; }
  .split-layout { gap: 28px; }
  .media-panel { min-height: 320px; padding: 24px; }
  .tool-main { min-height: auto; }
  .tool-stack { grid-template-columns: 1fr; }
  .check-panel { grid-template-columns: 1fr; }
  .knowledge-band { padding: 22px; }
  .knowledge-list { grid-template-columns: 1fr; }
  .cta-band { padding: 32px 24px; grid-template-columns: 1fr; }
  .page-hero { padding: 54px 0 42px; }
  .page-hero-visual { min-height: 290px; }
  .data-table { display: block; overflow-x: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-risk { grid-template-columns: 1fr; gap: 8px; }
  .footer-bottom { align-items: flex-start; justify-content: center; flex-direction: column; padding: 18px 0; }
}

@media (max-width: 430px) {
  .header-shell { gap: 8px; }
  .brand-link img { width: 102px; }
  .header-actions .download-btn { padding-inline: 11px; }
  .mobile-menu__quick { grid-template-columns: 1fr; }
  .mobile-menu__groups details > div { grid-template-columns: 1fr; }
  .button-row { align-items: stretch; }
  .button-row > a { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}