:root {
  --ink: #18302d;
  --muted: #5d716d;
  --surface: #fffdf8;
  --surface-2: #f4f7f1;
  --surface-3: #e7f3ee;
  --primary: #17665b;
  --primary-2: #0f5048;
  --primary-soft: #d8eee7;
  --accent: #efa85d;
  --accent-soft: #fff0dc;
  --danger: #a8423b;
  --danger-soft: #fbe9e7;
  --line: #d7e0dc;
  --shadow-sm: 0 8px 24px rgba(24, 48, 45, 0.07);
  --shadow: 0 20px 50px rgba(24, 48, 45, 0.11);
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 32px;
  --content: 1180px;
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(216, 238, 231, .62), transparent 32rem),
    linear-gradient(180deg, #fbfcf8 0%, #fffdf8 45%, #f7f8f3 100%);
  font-family: var(--font);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
::selection { background: var(--primary-soft); color: var(--primary-2); }

.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 999;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  border-radius: 10px;
}
.skip-link:focus { top: 12px; }

.container { width: min(calc(100% - 32px), var(--content)); margin: 0 auto; }
.narrow { width: min(calc(100% - 32px), 780px); margin: 0 auto; }
.section { padding: 82px 0; }
.section-sm { padding: 52px 0; }
.section-header { max-width: 760px; margin-bottom: 34px; }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--accent); border-radius: 999px; }
h1, h2, h3 { line-height: 1.22; letter-spacing: -.035em; margin: 0 0 16px; }
h1 { font-size: clamp(2.55rem, 6vw, 5.2rem); }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }
p { margin: 0 0 16px; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.26rem); line-height: 1.8; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.kicker { font-size: .92rem; color: var(--muted); font-weight: 700; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(215, 224, 220, .8);
  background: rgba(255, 253, 248, .88);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -.03em; font-size: 1.2rem; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: var(--primary); box-shadow: inset 0 -5px 12px rgba(0,0,0,.1); }
.brand-mark svg { width: 28px; height: 28px; }
.brand-sub { display: block; color: var(--muted); font-size: .66rem; letter-spacing: .08em; font-weight: 800; line-height: 1.1; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { padding: 10px 12px; border-radius: 10px; font-size: .92rem; font-weight: 750; color: #36524e; }
.main-nav a:hover, .main-nav a[aria-current="page"] { background: var(--primary-soft); color: var(--primary-2); }
.header-cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; background: var(--primary); color: white; font-weight: 800; font-size: .9rem; }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; border-radius: 10px; }
.menu-toggle:hover { background: var(--surface-3); }
.menu-toggle span { display: block; width: 23px; height: 2px; background: var(--ink); margin: 5px 0; transition: .2s; }

.notice-bar { background: var(--ink); color: rgba(255,255,255,.88); font-size: .8rem; }
.notice-inner { min-height: 34px; display: flex; align-items: center; justify-content: center; gap: 10px; text-align: center; }
.notice-dot { width: 7px; height: 7px; border-radius: 50%; background: #87d8bd; box-shadow: 0 0 0 4px rgba(135,216,189,.14); }

.hero { padding: 72px 0 58px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(38px, 7vw, 90px); }
.hero-copy h1 span { color: var(--primary); }
.hero-copy .lead { max-width: 690px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 26px; }
.button {
  border: 1px solid transparent;
  border-radius: 999px;
  min-height: 48px;
  padding: 11px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--primary);
  color: white;
  font-weight: 850;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(23,102,91,.22); background: var(--primary-2); }
.button.secondary { color: var(--ink); background: white; border-color: var(--line); }
.button.secondary:hover { background: var(--surface-2); box-shadow: var(--shadow-sm); }
.button.ghost { color: var(--primary); background: transparent; border-color: var(--primary); }
.button.small-button { min-height: 40px; padding: 8px 14px; font-size: .88rem; }
.button.full { width: 100%; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 16px 24px; color: var(--muted); font-size: .88rem; font-weight: 700; }
.hero-trust span { display: inline-flex; align-items: center; gap: 7px; }
.check { width: 20px; height: 20px; display: inline-grid; place-items: center; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-size: .75rem; font-weight: 900; }

.hero-visual { position: relative; min-height: 530px; display: grid; place-items: center; }
.hero-blob { position: absolute; inset: 10% 0 0 8%; background: linear-gradient(145deg, #d8eee7, #f9e7cb); border-radius: 42% 58% 48% 52% / 44% 35% 65% 56%; transform: rotate(-4deg); }
.hero-card {
  position: relative;
  width: min(100%, 430px);
  padding: 28px;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.humidity-row { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 16px; }
.humidity-number { font-size: 4.6rem; line-height: 1; font-weight: 950; letter-spacing: -.08em; color: var(--primary); }
.humidity-number small { font-size: 1.1rem; letter-spacing: 0; }
.humidity-goal { text-align: right; color: var(--muted); font-size: .86rem; }
.humidity-goal strong { display: block; color: var(--ink); font-size: 1.35rem; }
.gauge { height: 12px; border-radius: 999px; background: #e7ece9; overflow: hidden; margin: 10px 0 24px; }
.gauge-fill { width: 78%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #87d8bd, #17665b); }
.hero-machine { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: end; }
.machine-illustration { background: var(--surface-3); border-radius: 22px; padding: 16px; min-height: 205px; display: grid; place-items: center; }
.machine-stats { display: grid; gap: 10px; }
.stat-chip { padding: 13px 14px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.stat-chip strong { display: block; font-size: 1.13rem; }
.stat-chip span { color: var(--muted); font-size: .78rem; }
.floating-note { position: absolute; left: -26px; bottom: 38px; width: 190px; padding: 14px 16px; border-radius: 18px; background: var(--ink); color: white; box-shadow: var(--shadow); transform: rotate(-3deg); }
.floating-note strong { display: block; font-size: .95rem; }
.floating-note span { font-size: .76rem; color: rgba(255,255,255,.72); }

.metric-strip { padding: 0 0 46px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: rgba(255,255,255,.7); box-shadow: var(--shadow-sm); }
.metric { padding: 24px; border-right: 1px solid var(--line); }
.metric:last-child { border: 0; }
.metric strong { display: block; font-size: 1.7rem; line-height: 1.2; }
.metric span { color: var(--muted); font-size: .84rem; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.84);
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #b9cec6; }
.card-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 16px; background: var(--primary-soft); color: var(--primary); margin-bottom: 22px; }
.card-icon.accent { background: var(--accent-soft); color: #a65c1a; }
.card-icon.danger { background: var(--danger-soft); color: var(--danger); }
.card-icon svg { width: 26px; height: 26px; }
.card p { color: var(--muted); }
.card-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 850; margin-top: 6px; }
.card-link::after { content: "→"; transition: transform .2s; }
.card:hover .card-link::after { transform: translateX(4px); }

.tool-preview { background: var(--ink); color: white; overflow: hidden; }
.tool-preview .section-header .lead, .tool-preview .muted { color: rgba(255,255,255,.68); }
.tool-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.form-card { background: white; color: var(--ink); border-radius: 26px; padding: 28px; box-shadow: 0 24px 60px rgba(0,0,0,.22); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 800; font-size: .9rem; }
.field-hint { color: var(--muted); font-size: .76rem; }
.input, select, input[type="number"], input[type="text"], input[type="search"] {
  width: 100%;
  min-height: 48px;
  border: 1px solid #cbd7d2;
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  padding: 10px 13px;
  outline: 0;
}
.input:focus, select:focus, input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(23,102,91,.12); }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 20px; }
.result-panel { margin-top: 20px; padding: 20px; border-radius: 18px; background: var(--surface-3); border: 1px solid #c6ddd5; }
.result-panel[hidden] { display: none; }
.result-number { display: flex; align-items: baseline; gap: 7px; color: var(--primary); font-weight: 950; }
.result-number strong { font-size: 3rem; line-height: 1; letter-spacing: -.06em; }
.result-list { margin: 12px 0 0; padding-left: 20px; color: #375450; }
.result-alert { background: var(--accent-soft); border-color: #f3d6ad; }

.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.scenario { min-height: 220px; padding: 24px; border-radius: 22px; background: white; border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; }
.scenario:nth-child(2n) { background: var(--surface-3); }
.scenario-emoji { font-size: 2rem; }
.scenario p { color: var(--muted); font-size: .9rem; }

.data-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { background: var(--surface-2); color: #3a5551; font-size: .78rem; letter-spacing: .03em; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #fbfcfa; }
.badge { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 5px 9px; background: var(--primary-soft); color: var(--primary-2); font-weight: 850; font-size: .74rem; white-space: nowrap; }
.badge.accent { background: var(--accent-soft); color: #935219; }
.badge.gray { background: #eef1ef; color: #52615e; }
.model-link { color: var(--primary); font-weight: 850; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { display: flex; flex-direction: column; min-height: 310px; padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: white; box-shadow: var(--shadow-sm); }
.article-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.article-card .category { color: var(--primary); font-size: .76rem; font-weight: 900; letter-spacing: .06em; margin-bottom: 12px; }
.article-card h3 { font-size: 1.35rem; }
.article-card p { color: var(--muted); font-size: .92rem; }
.article-card .card-link { margin-top: auto; }

.trust-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 38px; border: 1px solid var(--line); border-radius: 28px; background: linear-gradient(135deg, white, var(--surface-3)); }
.trust-list { display: grid; gap: 16px; }
.trust-item { display: grid; grid-template-columns: 38px 1fr; gap: 12px; }
.trust-item .number { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 12px; background: var(--primary); color: white; font-weight: 900; }
.trust-item strong { display: block; }
.trust-item span { color: var(--muted); font-size: .88rem; }

.cta-panel { position: relative; overflow: hidden; padding: 46px; border-radius: 30px; background: var(--primary); color: white; }
.cta-panel::after { content: ""; position: absolute; width: 280px; height: 280px; border-radius: 50%; right: -90px; top: -120px; background: rgba(255,255,255,.09); }
.cta-panel .lead { color: rgba(255,255,255,.75); max-width: 700px; }
.cta-panel .button { background: white; color: var(--primary-2); }
.cta-panel .button:hover { background: var(--accent-soft); }

.page-hero { padding: 64px 0 42px; }
.page-hero-grid { display: grid; grid-template-columns: 1fr .42fr; gap: 40px; align-items: end; }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--muted); font-size: .82rem; margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--primary); }
.page-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.page-aside { padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: var(--shadow-sm); }

.tool-layout { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 30px; align-items: start; }
.tool-main { padding: 30px; border: 1px solid var(--line); border-radius: 26px; background: white; box-shadow: var(--shadow-sm); }
.tool-sidebar { position: sticky; top: 104px; display: grid; gap: 16px; }
.info-card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface-2); }
.info-card h3 { font-size: 1.08rem; }
.info-card ul { margin: 0; padding-left: 20px; color: var(--muted); }
.range-row { display: grid; grid-template-columns: 1fr 92px; gap: 12px; align-items: center; }
input[type="range"] { width: 100%; accent-color: var(--primary); }
.segmented { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span { min-height: 46px; display: grid; place-items: center; padding: 8px; border: 1px solid var(--line); border-radius: 12px; background: white; color: var(--muted); font-size: .84rem; font-weight: 800; cursor: pointer; text-align: center; }
.segmented input:checked + span { border-color: var(--primary); background: var(--primary-soft); color: var(--primary-2); box-shadow: inset 0 0 0 1px var(--primary); }
.result-hero { display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: center; }
.result-circle { width: 116px; height: 116px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: white; text-align: center; box-shadow: 0 16px 34px rgba(23,102,91,.26); }
.result-circle strong { display: block; font-size: 2.25rem; line-height: 1; }
.result-circle span { font-size: .75rem; opacity: .78; }
.recommendations { display: grid; gap: 12px; margin-top: 18px; }
.recommendation { padding: 14px; border-radius: 14px; background: white; border: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; align-items: center; }

.filters { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 12px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: white; margin-bottom: 20px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product-card { padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: var(--shadow-sm); }
.product-card-top { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.product-brand { color: var(--muted); font-size: .78rem; font-weight: 800; }
.product-model { font-size: 1.15rem; font-weight: 950; letter-spacing: -.025em; word-break: break-word; }
.product-specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin: 18px 0; }
.product-spec { padding: 12px; border-radius: 12px; background: var(--surface-2); }
.product-spec strong { display: block; font-size: 1.15rem; }
.product-spec span { color: var(--muted); font-size: .72rem; }
.product-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }
.empty-state { padding: 50px 20px; text-align: center; border: 1px dashed #b9c9c3; border-radius: 20px; color: var(--muted); }

.recall-check { padding: 28px; border-radius: 24px; background: linear-gradient(135deg, #fff7f0, #fff); border: 1px solid #f1d4bd; }
.recall-result { margin-top: 18px; padding: 18px; border-radius: 16px; }
.recall-result.safe { background: var(--primary-soft); border: 1px solid #b8d9ce; }
.recall-result.warn { background: var(--danger-soft); border: 1px solid #efc1bd; }
.recall-result.neutral { background: var(--surface-2); border: 1px solid var(--line); }
.warning-list { display: grid; gap: 14px; margin-top: 24px; }
.warning-item { display: grid; grid-template-columns: 32px 1fr; gap: 12px; align-items: start; }
.warning-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; background: var(--danger-soft); color: var(--danger); font-weight: 900; }

.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 300px; gap: 50px; align-items: start; }
.article-body { font-size: 1.05rem; }
.article-body h2 { font-size: 1.75rem; margin: 46px 0 16px; }
.article-body h3 { margin-top: 34px; }
.article-body p { color: #314844; }
.article-body ul, .article-body ol { padding-left: 24px; color: #314844; }
.article-body li { margin-bottom: 8px; }
.article-intro { font-size: 1.16rem; line-height: 1.9; color: #314844; padding: 24px 0 28px; border-bottom: 1px solid var(--line); }
.article-aside { position: sticky; top: 106px; display: grid; gap: 16px; }
.toc { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.toc strong { display: block; margin-bottom: 10px; }
.toc a { display: block; color: var(--muted); font-size: .84rem; padding: 6px 0; }
.toc a:hover { color: var(--primary); }
.callout { margin: 28px 0; padding: 20px 22px; border-left: 4px solid var(--accent); border-radius: 0 14px 14px 0; background: var(--accent-soft); }
.source-box { margin-top: 44px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface-2); font-size: .87rem; }
.source-box ul { margin-bottom: 0; }
.source-box a { color: var(--primary); text-decoration: underline; overflow-wrap: anywhere; }
.faq-list { display: grid; gap: 12px; }
details { border: 1px solid var(--line); border-radius: 14px; background: white; }
summary { list-style: none; cursor: pointer; padding: 18px 20px; font-weight: 850; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; }
details[open] summary::after { content: "−"; }
details p { padding: 0 20px 18px; margin: 0; color: var(--muted); }

.product-detail { display: grid; grid-template-columns: .85fr 1.15fr; gap: 36px; align-items: start; }
.product-visual { min-height: 410px; padding: 34px; border-radius: 30px; background: linear-gradient(145deg, var(--primary-soft), var(--accent-soft)); display: grid; place-items: center; }
.product-machine { width: 210px; height: 300px; border-radius: 28px; background: white; box-shadow: 0 26px 50px rgba(24,48,45,.18); padding: 20px; display: flex; flex-direction: column; }
.product-machine-display { width: 78px; height: 35px; border-radius: 9px; background: var(--ink); color: #8ff3c9; display: grid; place-items: center; font-weight: 900; margin: 0 auto 22px; }
.product-machine-grill { display: grid; gap: 5px; margin-top: 8px; }
.product-machine-grill span { height: 3px; border-radius: 999px; background: #d7dfdc; }
.product-machine-tank { margin-top: auto; height: 98px; border: 2px solid #d4dfdb; border-radius: 16px; overflow: hidden; position: relative; }
.product-machine-water { position: absolute; inset: 42% 0 0; background: #bce7dc; }
.spec-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 24px 0; }
.spec-box { padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.spec-box span { display: block; color: var(--muted); font-size: .76rem; }
.spec-box strong { font-size: 1.2rem; }

.method-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.method-card { padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: white; }
.method-card h3 { display: flex; gap: 10px; align-items: center; }

.site-footer { margin-top: 80px; background: #112a27; color: rgba(255,255,255,.78); }
.footer-main { padding: 58px 0 36px; display: grid; grid-template-columns: 1.25fr repeat(3, .75fr); gap: 40px; }
.footer-brand { color: white; margin-bottom: 14px; }
.footer-main h3 { color: white; font-size: .95rem; letter-spacing: 0; }
.footer-main a { display: block; padding: 5px 0; font-size: .86rem; }
.footer-main a:hover { color: white; }
.footer-note { max-width: 420px; font-size: .84rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0 28px; display: flex; justify-content: space-between; gap: 20px; font-size: .76rem; }
.footer-bottom a { text-decoration: underline; }

.toast { position: fixed; left: 50%; bottom: 24px; z-index: 500; transform: translate(-50%, 120px); opacity: 0; padding: 12px 18px; border-radius: 999px; background: var(--ink); color: white; box-shadow: var(--shadow); transition: .25s; font-size: .88rem; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

@media (max-width: 1020px) {
  .main-nav { position: fixed; inset: 74px 0 auto; display: none; padding: 18px 16px 24px; background: rgba(255,253,248,.98); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .main-nav.open { display: grid; }
  .main-nav a { padding: 13px 14px; }
  .header-cta { margin-top: 8px; }
  .menu-toggle { display: block; }
  .hero-grid, .tool-grid, .trust-panel, .product-detail { grid-template-columns: 1fr; }
  .hero-visual { min-height: 470px; }
  .hero-card { width: min(92%, 460px); }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .card-grid, .article-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-layout, .article-layout { grid-template-columns: 1fr; }
  .tool-sidebar, .article-aside { position: static; }
  .page-hero-grid { grid-template-columns: 1fr; }
  .page-aside { max-width: 600px; }
  .footer-main { grid-template-columns: 1.2fr repeat(2, 1fr); }
  .footer-main > div:last-child { grid-column: 2 / 3; }
}

@media (max-width: 720px) {
  :root { --radius-lg: 24px; }
  .container, .narrow { width: min(calc(100% - 24px), var(--content)); }
  .section { padding: 58px 0; }
  .section-sm { padding: 38px 0; }
  .notice-inner { padding: 6px 0; line-height: 1.4; }
  .brand-sub { display: none; }
  .hero { padding-top: 48px; }
  .hero-grid { gap: 26px; }
  .hero-copy h1 { font-size: clamp(2.45rem, 13vw, 3.7rem); }
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 430px; }
  .hero-card { padding: 20px; }
  .humidity-number { font-size: 3.8rem; }
  .floating-note { left: -4px; bottom: -6px; }
  .hero-machine { grid-template-columns: 1fr 1fr; gap: 10px; }
  .machine-illustration { min-height: 170px; }
  .metric-grid, .card-grid, .article-grid, .product-grid, .scenario-grid, .form-grid, .method-grid { grid-template-columns: 1fr; }
  .metric { border-right: 0; border-bottom: 1px solid var(--line); }
  .metric:nth-child(2) { border-bottom: 1px solid var(--line); }
  .metric:last-child { border-bottom: 0; }
  .tool-preview { border-radius: 0; }
  .form-card, .tool-main { padding: 20px; }
  .field.full { grid-column: auto; }
  .segmented { grid-template-columns: 1fr; }
  .result-hero { grid-template-columns: 1fr; text-align: center; }
  .result-circle { margin: 0 auto; }
  .filters { grid-template-columns: 1fr; }
  .product-specs, .spec-list { grid-template-columns: 1fr 1fr; }
  .page-hero { padding-top: 42px; }
  .page-hero h1 { font-size: clamp(2.2rem, 12vw, 3.5rem); }
  .article-body { font-size: 1rem; }
  .article-body h2 { font-size: 1.5rem; }
  .cta-panel { padding: 30px 24px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-main > div:first-child { grid-column: 1 / -1; }
  .footer-main > div:last-child { grid-column: auto; }
  .footer-bottom { display: grid; }
}

@media (max-width: 440px) {
  .header-inner { min-height: 66px; }
  .main-nav { inset: 66px 0 auto; }
  .brand-mark { width: 38px; height: 38px; }
  .hero-visual { min-height: 390px; }
  .hero-card { width: 100%; }
  .floating-note { width: 160px; }
  .product-specs, .spec-list { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-main > div:first-child, .footer-main > div:last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* Decision tools */
.tools-directory { align-items: stretch; }
.tool-directory-card { display: flex; flex-direction: column; }
.tool-directory-card h2 { font-size: 1.28rem; }
.tool-directory-card .card-link { margin-top: auto; padding-top: 14px; }
.issue-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.hazard-check { margin-top: 28px; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.check-grid label { border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: #fff; cursor: pointer; }
.result-panel:focus { outline: 3px solid rgba(23, 102, 91, .24); outline-offset: 4px; }

@media (max-width: 760px) {
  .issue-options, .check-grid { grid-template-columns: 1fr; }
}