:root {
    --brand: #B93A4A;
    --brand-soft: #D9828D;
    --ink: #2B2528;
    --text: #332D2F;
    --muted: #756B6E;
    --paper: #FFF9F7;
    --surface: #FFFFFF;
    --surface-2: #F6ECEB;
    --accent: #E45B4F;
    --line: rgba(67, 42, 48, 0.12);
    --line-strong: rgba(67, 42, 48, 0.2);
    --shadow: 0 18px 50px rgba(61, 38, 44, 0.09);
    --radius-sm: 10px;
    --radius: 18px;
    --radius-lg: 30px;
    --container: min(1180px, calc(100vw - 48px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: var(--text); background: var(--paper); line-height: 1.7; -webkit-font-smoothing: antialiased; }
body.search-open { overflow: hidden; }
img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
.container { width: var(--container); margin: 0 auto; }
.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; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 999; padding: 10px 14px; color: #fff; background: var(--ink); border-radius: 8px; transform: translateY(-140%); }
.skip-link:focus { transform: translateY(0); }
.eyebrow { margin: 0 0 10px; color: var(--brand); font-size: .82rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--line); background: rgba(255,249,247,.94); backdrop-filter: blur(16px); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 44px; height: 44px; object-fit: contain; border-radius: 12px; }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy strong { color: var(--ink); font-size: 1.08rem; }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: .7rem; letter-spacing: .04em; }
.primary-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.primary-nav a { padding: 9px 10px; border-radius: 9px; color: #5c5356; font-size: .94rem; font-weight: 650; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--brand); background: var(--surface-2); }
.search-trigger { flex: 0 0 auto; border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 15px; color: var(--ink); background: transparent; font-weight: 700; }
.search-trigger:hover { border-color: var(--brand-soft); color: var(--brand); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; }
.menu-toggle__line { display: block; height: 2px; margin: 4px 0; background: var(--ink); }
.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: start center; padding-top: 10vh; }
.search-modal__backdrop { position: absolute; inset: 0; background: rgba(43,37,40,.56); }
.search-modal__panel { position: relative; width: min(680px, calc(100vw - 32px)); padding: 34px; background: var(--paper); border-radius: 24px; box-shadow: 0 30px 90px rgba(0,0,0,.24); }
.search-modal__panel h2 { margin: 0 0 20px; color: var(--ink); font-size: clamp(1.5rem, 4vw, 2.2rem); line-height: 1.25; }
.search-modal__close { position: absolute; top: 16px; right: 16px; width: 38px; height: 38px; border: 0; border-radius: 50%; background: var(--surface-2); color: var(--ink); font-size: 1.5rem; }
.search-form label { display: block; margin-bottom: 8px; font-weight: 750; color: var(--ink); }
.search-form__row { display: flex; gap: 10px; }
.search-form input { min-width: 0; flex: 1; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 12px; background: #fff; color: var(--ink); outline: none; }
.search-form input:focus { border-color: var(--brand-soft); box-shadow: 0 0 0 4px rgba(185,58,74,.08); }
.search-form button { border: 0; border-radius: 12px; padding: 12px 18px; color: #fff; background: var(--brand); font-weight: 750; }
.form-note { margin: 12px 0 0; color: var(--muted); font-size: .9rem; }
.hero { padding: 68px 0 46px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; gap: 56px; align-items: center; }
.hero-copy h1, .page-hero h1, .not-found h1 { margin: 0 0 18px; color: var(--ink); font-size: clamp(2.45rem, 6vw, 5.05rem); line-height: 1.06; letter-spacing: -.045em; }
.hero-lead { margin: 0; color: #584f52; font-size: clamp(1.02rem, 2vw, 1.22rem); line-height: 1.8; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 18px; border-radius: 999px; font-weight: 760; line-height: 1.2; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-1px); }
.button--primary { color: #fff; background: var(--brand); box-shadow: 0 9px 24px rgba(185,58,74,.18); }
.button--primary:hover { background: #a93140; }
.button--soft { color: var(--brand); background: var(--surface-2); }
.button--soft:hover { background: #f0dfdf; }
.button--text { color: var(--ink); border: 1px solid var(--line-strong); background: transparent; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 12px 26px; margin: 34px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); }
.hero-facts div { min-width: 130px; }
.hero-facts dt { color: var(--muted); font-size: .78rem; }
.hero-facts dd { margin: 2px 0 0; color: var(--ink); font-weight: 730; }
.hero-media { position: relative; }
.hero-media > img { min-height: 490px; object-fit: cover; border-radius: 34px 34px 100px 34px; box-shadow: var(--shadow); background: var(--surface-2); }
.media-caption { position: absolute; left: -28px; bottom: 24px; width: min(330px, 80%); padding: 18px 20px; border: 1px solid rgba(255,255,255,.55); background: rgba(255,249,247,.92); backdrop-filter: blur(12px); border-radius: 18px; box-shadow: var(--shadow); }
.media-caption strong, .media-caption span { display: block; }
.media-caption strong { color: var(--ink); }
.media-caption span { margin-top: 4px; color: var(--muted); font-size: .88rem; }
.section { padding: 82px 0; }
.section--light { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section--tint { background: var(--surface-2); }
.section--deep { color: #f9efef; background: var(--ink); }
.section--deep .eyebrow { color: #f0a8b1; }
.section--deep .section-intro h2, .section--deep .section-intro p { color: inherit; }
.section--about { background: #fff; }
.section-intro { max-width: 760px; margin-bottom: 38px; }
.section-intro h2 { margin: 0 0 12px; color: var(--ink); font-size: clamp(2rem, 4.3vw, 3.55rem); line-height: 1.15; letter-spacing: -.035em; }
.section-intro p { margin: 0; color: var(--muted); font-size: 1.02rem; }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.topic-card { overflow: hidden; border: 1px solid var(--line); background: var(--paper); border-radius: 24px; }
.topic-card__image { aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-2); }
.topic-card__image img { height: 100%; object-fit: cover; transition: transform .35s ease; }
.topic-card:hover .topic-card__image img { transform: scale(1.025); }
.topic-card__body { padding: 24px; }
.topic-card h3 { margin: 0 0 10px; color: var(--ink); font-size: 1.3rem; line-height: 1.4; }
.topic-card h3 a:hover { color: var(--brand); }
.topic-card p { margin: 0; color: var(--muted); }
.check-list { display: grid; gap: 8px; margin: 20px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 21px; color: #4c4447; font-size: .93rem; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .74em; width: 8px; height: 8px; border: 2px solid var(--brand-soft); border-radius: 50%; transform: translateY(-50%); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-weight: 760; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(3px); }
.split-feature { display: grid; grid-template-columns: .94fr 1.06fr; gap: 58px; align-items: center; }
.split-feature--reverse .split-feature__media { order: 2; }
.split-feature__media img { min-height: 410px; max-height: 580px; object-fit: cover; border-radius: 34px; background: var(--surface-2); }
.split-feature__copy h2, .editorial-band__main h2, .app-showcase__copy h2, .image-band__copy h2, .faq-preview h2 { margin: 0 0 16px; color: var(--ink); font-size: clamp(2rem, 4.4vw, 3.45rem); line-height: 1.15; letter-spacing: -.034em; }
.split-feature__copy p, .editorial-band__main > p, .app-showcase__copy > p, .image-band__copy p, .faq-preview > div > p { color: var(--muted); }
.editorial-band { display: grid; grid-template-columns: 1.12fr .88fr; gap: 44px; align-items: start; }
.number-list { display: grid; gap: 18px; margin: 30px 0 0; padding: 0; list-style: none; }
.number-list li { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding-top: 18px; border-top: 1px solid rgba(67,42,48,.14); }
.number-list li > span { color: var(--brand); font-weight: 850; letter-spacing: .08em; }
.number-list strong { color: var(--ink); }
.number-list p { margin: 5px 0 0; color: var(--muted); }
.editorial-band__side { position: sticky; top: 102px; }
.editorial-band__side img { border-radius: 28px; min-height: 390px; object-fit: cover; }
.editorial-band blockquote { margin: -44px 22px 0; position: relative; padding: 22px; border: 1px solid rgba(255,255,255,.55); border-radius: 18px; color: var(--ink); background: rgba(255,249,247,.93); box-shadow: var(--shadow); font-weight: 700; }
.app-showcase { display: grid; grid-template-columns: .92fr 1.08fr; gap: 54px; align-items: center; }
.inline-notes { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 26px 0; }
.inline-notes article { padding: 15px; border-left: 3px solid var(--brand-soft); background: #fff; }
.inline-notes strong, .inline-notes span { display: block; }
.inline-notes strong { color: var(--ink); }
.inline-notes span { margin-top: 4px; color: var(--muted); font-size: .86rem; }
.app-showcase__visuals { display: grid; grid-template-columns: 1fr .82fr; gap: 16px; align-items: end; }
.app-showcase__visuals img { object-fit: cover; border-radius: 26px; background: var(--surface-2); }
.app-showcase__visuals img:first-child { height: 520px; }
.app-showcase__visuals img:last-child { height: 390px; }
.principle-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid rgba(255,255,255,.15); border-left: 1px solid rgba(255,255,255,.15); }
.principle-item { padding: 28px; border-right: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.principle-item > span { display: inline-flex; margin-bottom: 32px; color: #f0a8b1; font-size: .8rem; font-weight: 800; letter-spacing: .12em; }
.principle-item h3 { margin: 0 0 10px; color: #fff7f6; font-size: 1.25rem; }
.principle-item p { margin: 0; color: #d3c6c9; }
.guide-index { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.guide-index article { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.guide-index h3 { margin: 0 0 9px; color: var(--ink); }
.guide-index p { margin: 0 0 13px; color: var(--muted); }
.guide-index a { color: var(--brand); font-weight: 750; }
.section-action { margin-top: 26px; }
.section--image-band { padding-top: 30px; }
.image-band { display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden; border-radius: 32px; background: var(--ink); }
.image-band__image img { height: 100%; min-height: 440px; object-fit: cover; }
.image-band__copy { align-self: center; padding: 54px; }
.image-band__copy .eyebrow { color: #f3a9b1; }
.image-band__copy h2 { color: #fff7f6; }
.image-band__copy p { color: #d9cccf; }
.image-band__copy .button--text { color: #fff; border-color: rgba(255,255,255,.28); }
.faq-preview { display: grid; grid-template-columns: .78fr 1.22fr; gap: 56px; align-items: start; }
.faq-preview > div:first-child { position: sticky; top: 106px; }
.faq-preview img { margin-top: 28px; max-width: 420px; border-radius: 26px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h2, .faq-item h3 { margin: 0; font-size: 1rem; }
.faq-item button { width: 100%; display: flex; justify-content: space-between; gap: 18px; padding: 19px 0; border: 0; background: transparent; color: var(--ink); text-align: left; font-weight: 760; }
.faq-item button span { color: var(--brand); font-size: 1.25rem; transition: transform .2s ease; }
.faq-item button[aria-expanded="true"] span { transform: rotate(45deg); }
.faq-answer { padding: 0 36px 20px 0; }
.faq-answer[hidden] { display: none; }
.faq-answer p { margin: 0; color: var(--muted); }
.faq-list > .text-link { margin-top: 22px; }
.page-hero { padding: 54px 0 38px; border-bottom: 1px solid var(--line); background: #fff; }
.page-hero--soft { background: var(--surface-2); }
.page-hero--deep { color: #fff; background: var(--ink); }
.page-hero--deep h1 { color: #fff9f8; }
.page-hero--deep .hero-lead { color: #d8c9cc; }
.page-hero--compact { padding-bottom: 30px; }
.page-hero__grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 44px; align-items: center; }
.page-hero h1 { max-width: 850px; font-size: clamp(2.3rem, 5vw, 4.6rem); }
.page-hero__grid > img { min-height: 300px; max-height: 430px; object-fit: cover; border-radius: 28px; background: var(--surface-2); }
.breadcrumbs { margin-bottom: 24px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: .84rem; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 7px; color: #b8aaad; }
.breadcrumbs a:hover { color: var(--brand); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 52px; align-items: start; }
.prose { max-width: 820px; }
.prose--wide { max-width: 980px; }
.prose h2 { margin: 2.1em 0 .65em; color: var(--ink); font-size: clamp(1.65rem, 3vw, 2.45rem); line-height: 1.25; letter-spacing: -.02em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { color: var(--ink); }
.prose p { margin: 0 0 1.1em; color: #554c4f; }
.prose ul, .prose ol { margin: 1em 0 1.3em; padding-left: 1.25em; }
.prose li { margin: .48em 0; color: #51484b; }
.prose a { color: var(--brand); font-weight: 720; text-decoration: underline; text-decoration-color: rgba(185,58,74,.28); text-underline-offset: 3px; }
.prose code { padding: .1em .35em; border-radius: 5px; background: var(--surface-2); }
.callout { margin: 28px 0; padding: 22px; border-left: 4px solid var(--accent); background: #fff; box-shadow: var(--shadow); }
.callout strong { color: var(--ink); }
.callout p { margin: 7px 0 0; }
.article-aside { position: sticky; top: 102px; display: grid; gap: 18px; }
.aside-card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.aside-card--accent { border-color: rgba(185,58,74,.15); background: var(--surface-2); }
.aside-card h2 { margin: 0 0 13px; color: var(--ink); font-size: 1.08rem; }
.aside-card p { margin: 0 0 10px; color: var(--muted); font-size: .92rem; }
.aside-card ul, .aside-card ol { display: grid; gap: 8px; margin: 0; padding-left: 1.25em; color: #5f5558; }
.aside-card > a:not(.text-link), .faq-side .aside-card > a, .contact-side .aside-card > a { display: block; padding: 9px 0; border-top: 1px solid var(--line); color: var(--brand); font-weight: 700; }
.aside-image { border-radius: 18px; min-height: 220px; object-fit: cover; }
.three-step { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin: 26px 0; }
.three-step article { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.three-step span { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center; border-radius: 50%; color: #fff; background: var(--brand); font-weight: 800; }
.three-step h3 { margin: 12px 0 7px; font-size: 1rem; }
.three-step p { margin: 0; font-size: .9rem; }
.guide-cards { display: grid; gap: 22px; }
.guide-card { display: grid; grid-template-columns: 76px 1fr; gap: 26px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.guide-card__num { color: var(--brand-soft); font-size: 2rem; font-weight: 860; line-height: 1; }
.guide-card h2 { margin: 0 0 10px; color: var(--ink); font-size: 1.45rem; }
.guide-card p { margin: 0 0 15px; color: var(--muted); }
.guide-card ol { margin: 0 0 17px; padding-left: 1.25em; color: #51484b; }
.guide-card li { margin: 7px 0; }
.timeline-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 44px; }
.timeline { position: relative; }
.timeline::before { content: ""; position: absolute; left: 26px; top: 28px; bottom: 28px; width: 1px; background: var(--line-strong); }
.timeline article { position: relative; display: grid; grid-template-columns: 54px 1fr; gap: 22px; padding: 0 0 34px; }
.timeline article > span { z-index: 1; width: 54px; height: 54px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--brand); background: var(--paper); font-weight: 820; }
.timeline h2 { margin: 4px 0 7px; color: var(--ink); font-size: 1.35rem; }
.timeline p { margin: 0; color: var(--muted); }
.timeline a { color: var(--brand); font-weight: 700; }
.timeline-aside { display: grid; align-content: start; gap: 16px; }
.faq-page-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 48px; align-items: start; }
.faq-list--large .faq-item button { padding: 22px 0; font-size: 1.05rem; }
.faq-side { position: sticky; top: 102px; display: grid; gap: 16px; }
.value-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin: 26px 0; }
.value-grid article { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.value-grid h3 { margin: 0 0 7px; }
.value-grid p { margin: 0; }
.safety-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.safety-grid article { padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.safety-grid article > span { color: var(--brand-soft); font-weight: 850; letter-spacing: .08em; }
.safety-grid h2 { margin: 22px 0 8px; color: var(--ink); font-size: 1.3rem; }
.safety-grid p { margin: 0 0 16px; color: var(--muted); }
.safety-grid a { color: var(--brand); font-weight: 730; }
.contact-layout { display: grid; grid-template-columns: minmax(0,1fr) 330px; gap: 50px; align-items: start; }
.contact-side { display: grid; gap: 16px; }
.search-page { max-width: 900px; }
.search-form--page { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.result-count { margin: 24px 0 12px; color: var(--muted); }
.search-results { display: grid; gap: 14px; }
.search-results article { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.search-results h2 { margin: 0 0 8px; color: var(--ink); font-size: 1.28rem; }
.search-results h2 a:hover { color: var(--brand); }
.search-results p { margin: 0 0 12px; color: var(--muted); }
.empty-state { margin-top: 24px; padding: 34px; text-align: center; border: 1px dashed var(--line-strong); border-radius: 20px; background: #fff; }
.empty-state h2 { margin: 0 0 8px; color: var(--ink); }
.empty-state p { margin: 0; color: var(--muted); }
.empty-state .button-row { justify-content: center; }
.not-found { min-height: 66vh; display: grid; align-items: center; padding: 80px 0; }
.not-found__grid { display: grid; grid-template-columns: 1fr .85fr; gap: 60px; align-items: center; }
.not-found h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); }
.not-found p { color: var(--muted); font-size: 1.06rem; }
.not-found__links { display: grid; gap: 10px; }
.not-found__links h2 { margin: 0 0 8px; color: var(--ink); }
.not-found__links a { display: grid; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.not-found__links a:hover { border-color: rgba(185,58,74,.28); }
.not-found__links strong { color: var(--ink); }
.not-found__links span { color: var(--muted); font-size: .88rem; }
.site-footer { padding: 62px 0 24px; color: #d8cbce; background: #241f21; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3,1fr); gap: 40px; }
.brand--footer .brand-copy strong { color: #fff7f6; }
.brand--footer .brand-copy small { color: #b8aaad; }
.footer-about p { max-width: 430px; color: #bfb2b5; font-size: .92rem; }
.footer-links { display: grid; align-content: start; gap: 7px; }
.footer-links h2 { margin: 0 0 7px; color: #fff7f6; font-size: .95rem; }
.footer-links a { color: #bfb2b5; font-size: .9rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 38px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #9f9295; font-size: .83rem; }
.footer-bottom p { margin: 0; }
.footer-bottom a:hover { color: #fff; }
.back-to-top { position: fixed; right: 20px; bottom: 20px; z-index: 45; width: 44px; height: 44px; border: 0; border-radius: 50%; color: #fff; background: var(--brand); box-shadow: var(--shadow); }
.back-to-top[hidden] { display: none; }
@media (max-width: 1100px) {
    :root { --container: min(100% - 40px, 1040px); }
    .primary-nav { gap: 0; }
    .primary-nav a { padding: 8px 7px; font-size: .86rem; }
    .hero-grid, .page-hero__grid { gap: 34px; }
    .hero-media > img { min-height: 430px; }
    .topic-grid { grid-template-columns: repeat(2,1fr); }
    .topic-card:last-child { grid-column: 1 / -1; display: grid; grid-template-columns: .85fr 1.15fr; }
    .topic-card:last-child .topic-card__image { aspect-ratio: auto; }
    .topic-card:last-child .topic-card__image img { height: 100%; }
    .footer-grid { grid-template-columns: 1.45fr repeat(3,1fr); gap: 28px; }
}
@media (max-width: 900px) {
    .header-inner { flex-wrap: wrap; gap: 10px; padding: 14px 0; }
    .menu-toggle { display: block; margin-left: auto; }
    .search-trigger { order: 2; }
    .primary-nav { order: 3; width: 100%; display: none; padding-top: 10px; border-top: 1px solid var(--line); }
    .primary-nav.is-open { display: grid; grid-template-columns: repeat(2,1fr); gap: 4px; }
    .primary-nav a { padding: 10px; font-size: .93rem; }
    .hero { padding-top: 46px; }
    .hero-grid, .page-hero__grid, .split-feature, .editorial-band, .app-showcase, .faq-preview, .image-band, .article-layout, .timeline-layout, .faq-page-grid, .contact-layout, .not-found__grid { grid-template-columns: 1fr; }
    .hero-media > img { min-height: 360px; max-height: 560px; }
    .media-caption { left: 18px; }
    .split-feature--reverse .split-feature__media { order: 0; }
    .editorial-band__side, .faq-preview > div:first-child, .article-aside, .faq-side { position: static; }
    .app-showcase__visuals img:first-child { height: 430px; }
    .app-showcase__visuals img:last-child { height: 340px; }
    .image-band__copy { padding: 40px; }
    .page-hero__grid > img { max-height: 480px; }
    .article-aside { grid-template-columns: repeat(2,1fr); }
    .article-aside .aside-image { min-height: 100%; }
    .safety-grid { grid-template-columns: repeat(2,1fr); }
    .footer-grid { grid-template-columns: repeat(2,1fr); }
    .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    :root { --container: min(100% - 28px, 600px); }
    .brand-copy small { display: none; }
    .search-trigger { padding: 8px 11px; font-size: .85rem; }
    .hero, .section { padding: 56px 0; }
    .hero-copy h1 { font-size: clamp(2.3rem, 13vw, 4rem); }
    .hero-actions, .button-row { align-items: stretch; }
    .hero-actions .button, .button-row .button { width: 100%; }
    .hero-facts { display: grid; grid-template-columns: repeat(2,1fr); }
    .media-caption { position: relative; left: auto; bottom: auto; width: auto; margin: -22px 14px 0; }
    .topic-grid, .guide-index, .principle-grid, .inline-notes, .value-grid, .safety-grid, .article-aside { grid-template-columns: 1fr; }
    .topic-card:last-child { grid-column: auto; display: block; }
    .app-showcase__visuals { gap: 10px; }
    .app-showcase__visuals img:first-child { height: 360px; }
    .app-showcase__visuals img:last-child { height: 270px; }
    .image-band { border-radius: 22px; }
    .image-band__image img { min-height: 300px; }
    .image-band__copy { padding: 30px 24px; }
    .page-hero { padding-top: 36px; }
    .page-hero h1 { font-size: clamp(2.2rem, 12vw, 3.5rem); }
    .page-hero__grid > img { min-height: 230px; }
    .guide-card { grid-template-columns: 1fr; gap: 12px; padding: 22px; }
    .guide-card__num { font-size: 1.3rem; }
    .three-step { grid-template-columns: 1fr; }
    .search-form__row { flex-direction: column; }
    .search-form button { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-about { grid-column: auto; }
    .footer-bottom { flex-direction: column; }
}
@media (max-width: 390px) {
    :root { --container: min(100% - 22px, 375px); }
    .header-inner { min-height: 68px; }
    .brand img { width: 40px; height: 40px; }
    .primary-nav.is-open { grid-template-columns: 1fr; }
    .hero-actions .button, .button-row .button { padding-inline: 14px; }
    .hero-facts { grid-template-columns: 1fr; }
    .app-showcase__visuals { grid-template-columns: 1fr; }
    .app-showcase__visuals img:first-child, .app-showcase__visuals img:last-child { height: 280px; }
    .search-modal__panel { padding: 28px 20px; }
}

.home-definition { margin-bottom: 46px; padding: 28px 30px; border-left: 4px solid var(--brand); background: var(--surface-2); border-radius: 0 18px 18px 0; }
.home-definition h2 { margin: 0 0 10px; color: var(--ink); font-size: clamp(1.7rem, 3.4vw, 2.6rem); line-height: 1.2; }
.home-definition p:last-child { margin: 0; color: var(--muted); }