:root {
  --paper: #fffaf6;
  --paper-2: #fff4ec;
  --ink: #243039;
  --muted: #6d7880;
  --line: #eadfd7;
  --card: #ffffff;
  --coral: #e86f5a;
  --coral-dark: #b94e3d;
  --coral-soft: #ffe6df;
  --sage: #5f8f80;
  --sage-dark: #3f6f62;
  --sage-soft: #e5f1ed;
  --lavender: #8a78a6;
  --lavender-soft: #eee9f6;
  --sand: #f2dfca;
  --yellow: #f3bd58;
  --shadow-sm: 0 8px 24px rgba(67, 51, 42, 0.06);
  --shadow: 0 22px 64px rgba(67, 51, 42, 0.12);
  --radius-sm: 14px;
  --radius: 24px;
  --radius-lg: 36px;
  --max: 1180px;
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 0 0, rgba(232,111,90,.08), transparent 28rem),
    radial-gradient(circle at 100% 8%, rgba(95,143,128,.08), transparent 30rem),
    var(--paper);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--coral-soft); }

.visually-hidden {
  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;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 999;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), 820px); margin-inline: auto; }
.section { padding: 92px 0; }
.section-sm { padding: 60px 0; }
.section-title { max-width: 700px; margin-bottom: 36px; }
.section-title.center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--coral-dark);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 99px; background: currentColor; }
h1, h2, h3, h4 { margin: 0; line-height: 1.22; letter-spacing: -.025em; }
h1 { font-size: clamp(42px, 6.5vw, 78px); }
h2 { font-size: clamp(32px, 4vw, 50px); }
h3 { font-size: clamp(21px, 2vw, 28px); }
p { margin: 0; }
.lead { color: var(--muted); font-size: clamp(18px, 2vw, 22px); line-height: 1.8; }
.muted { color: var(--muted); }
.tiny { font-size: 13px; color: var(--muted); }

.announcement {
  background: var(--ink);
  color: #fff;
  font-size: 14px;
}
.announcement .container {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
}
.announcement a { color: #ffd1c7; font-weight: 800; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(234,223,215,.8);
  background: rgba(255,250,246,.88);
  backdrop-filter: blur(16px);
}
.navbar { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 22px; font-weight: 900; letter-spacing: -.04em; }
.brand-mark {
  position: relative;
  width: 43px;
  height: 34px;
  border: 2px solid var(--ink);
  border-radius: 12px 12px 15px 15px;
  background: #fff;
  box-shadow: 3px 4px 0 var(--sand);
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  top: -9px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--ink);
  background: #fff;
  transform: rotate(45deg);
  z-index: -1;
}
.brand-mark::before { left: 4px; border-radius: 3px 0 0 0; }
.brand-mark::after { right: 4px; border-radius: 3px 0 0 0; }
.brand-face { position: absolute; left: 8px; right: 8px; top: 13px; height: 8px; }
.brand-face::before, .brand-face::after { content: ""; position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--ink); top: 0; }
.brand-face::before { left: 2px; }
.brand-face::after { right: 2px; }
.brand-mouth { position: absolute; width: 8px; height: 4px; border-bottom: 2px solid var(--ink); border-radius: 0 0 8px 8px; left: 50%; bottom: 4px; transform: translateX(-50%); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links > a { color: #4a565e; font-size: 15px; font-weight: 700; }
.nav-links > a:hover, .nav-links > a[aria-current="page"] { color: var(--coral-dark); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  align-items: center;
  justify-content: center;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  display: block;
  width: 19px;
  height: 2px;
  border-radius: 99px;
  background: var(--ink);
  transition: .2s ease;
}
.menu-toggle span { position: relative; }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
.nav-open .menu-toggle span { background: transparent; }
.nav-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
.nav-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }
.mobile-nav { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 850;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--coral); color: #fff; box-shadow: 0 12px 30px rgba(232,111,90,.24); }
.btn-primary:hover { background: var(--coral-dark); }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { border-color: #d8c6ba; }
.btn-sage { background: var(--sage); color: #fff; }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: 14px; }
.btn-block { width: 100%; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--coral-dark); font-weight: 850; }
.link-arrow span { transition: transform .2s ease; }
.link-arrow:hover span { transform: translateX(4px); }

.hero { padding: 78px 0 72px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 68px; }
.hero-copy h1 span { display: block; color: var(--coral); }
.hero-copy .lead { max-width: 680px; margin-top: 24px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-note { display: flex; align-items: center; gap: 10px; margin-top: 22px; color: var(--muted); font-size: 14px; }
.avatar-stack { display: flex; align-items: center; }
.avatar-stack i { display: grid; place-items: center; width: 30px; height: 30px; margin-left: -7px; border: 2px solid var(--paper); border-radius: 50%; background: var(--sand); font-style: normal; font-size: 13px; }
.avatar-stack i:first-child { margin-left: 0; }
.hero-visual { position: relative; min-height: 500px; }
.hero-orbit { position: absolute; inset: 3% 0 0 3%; border: 1px dashed #d7c5b8; border-radius: 50%; animation: spin 30s linear infinite; }
.hero-orbit::before, .hero-orbit::after { content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--yellow); }
.hero-orbit::before { left: 5%; top: 24%; }
.hero-orbit::after { right: 12%; bottom: 9%; background: var(--sage); }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-card {
  position: absolute;
  inset: 42px 24px 38px 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 48px;
  background: linear-gradient(145deg, #fff 0%, #fff5ee 100%);
  box-shadow: var(--shadow);
  transform: rotate(-2deg);
}
.pillow-illustration { position: relative; width: min(85%, 390px); aspect-ratio: 1.35; filter: drop-shadow(0 24px 22px rgba(78,53,40,.16)); }
.pillow-shape {
  position: absolute;
  inset: 12% 4% 7%;
  border: 3px solid var(--ink);
  border-radius: 35% 31% 34% 28% / 37% 33% 35% 32%;
  background: #fff;
  transform: rotate(2deg);
}
.pillow-shape::before, .pillow-shape::after {
  content: "";
  position: absolute;
  top: -25px;
  width: 72px;
  height: 72px;
  border: 3px solid var(--ink);
  background: #fff;
  transform: rotate(45deg);
  z-index: -1;
}
.pillow-shape::before { left: 34px; border-radius: 14px 0 16px 0; }
.pillow-shape::after { right: 34px; border-radius: 14px 0 16px 0; }
.cat-eye { position: absolute; top: 44%; width: 12px; height: 17px; border-radius: 50%; background: var(--ink); }
.cat-eye.left { left: 34%; }
.cat-eye.right { right: 34%; }
.cat-nose { position: absolute; top: 53%; left: 50%; width: 11px; height: 8px; border-radius: 50% 50% 60% 60%; background: var(--coral); transform: translateX(-50%); }
.cat-mouth { position: absolute; top: 56%; left: 50%; width: 28px; height: 15px; border-bottom: 3px solid var(--ink); border-radius: 0 0 24px 24px; transform: translateX(-50%); }
.pillow-label { position: absolute; left: 50%; bottom: 13%; transform: translateX(-50%); color: var(--sage-dark); font-weight: 900; letter-spacing: .16em; }
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  font-weight: 800;
  backdrop-filter: blur(8px);
}
.float-card b { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: var(--coral-soft); color: var(--coral-dark); }
.float-card.one { left: -18px; top: 70px; }
.float-card.two { right: -12px; top: 185px; }
.float-card.three { left: 4px; bottom: 22px; }

.trust-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.55); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.trust-item { display: flex; align-items: center; justify-content: center; gap: 11px; min-height: 88px; padding: 16px; text-align: center; font-weight: 800; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.check { display: grid; place-items: center; flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%; background: var(--sage-soft); color: var(--sage-dark); font-size: 13px; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}
.card-hover { transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.card-hover:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #ddcabd; }
.problem-card { padding: 28px; }
.problem-card .num { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 24px; border-radius: 12px; background: var(--coral-soft); color: var(--coral-dark); font-weight: 900; }
.problem-card h3 { margin-bottom: 12px; }
.problem-card p { color: var(--muted); }

.intent-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.intent-card { padding: 26px; display: flex; flex-direction: column; gap: 13px; }
.intent-card h2 { font-size: 24px; }
.intent-card p { color: var(--muted); }
.intent-card .link-arrow { margin-top: auto; }
.intent-filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.intent-filter button { padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink); font-weight: 800; }
.intent-filter button.active { border-color: var(--coral); background: var(--coral-soft); color: var(--coral-dark); }
.tools-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.tool-card { padding: 30px; }
.tool-card h2 { margin: 12px 0; font-size: 30px; }
.tool-card p { margin-bottom: 24px; color: var(--muted); }
.tool-shell { padding: clamp(22px, 5vw, 44px); }
.intent-tool { display: grid; gap: 18px; }
.intent-tool fieldset { display: grid; gap: 10px; margin: 0; padding: 0; border: 0; }
.intent-tool legend { margin-bottom: 12px; font-size: 22px; font-weight: 900; }
.intent-tool > label { display: grid; gap: 7px; font-weight: 800; }
.intent-tool select, .intent-tool input:not([type="checkbox"]), .intent-tool textarea { width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; color: var(--ink); }
.check-row { display: flex !important; align-items: flex-start; gap: 11px !important; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); font-weight: 700 !important; }
.check-row input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--coral); }
.tool-result { display: none; padding: 20px; border-radius: 16px; }
.tool-result.show { display: block; }
.tool-result.safe { background: var(--sage-soft); }
.tool-result.warning { border: 1px solid #f0bd77; background: #fff4df; }
.tool-result h2 { margin-bottom: 8px; font-size: 26px; }
.log-item { margin-top: 12px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }
.log-item span { display: block; color: var(--muted); font-size: 14px; }
.compare-input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compare-input-grid fieldset { padding: 18px; border: 1px solid var(--line); border-radius: 16px; }
.compare-input-grid label { display: grid; gap: 6px; margin-top: 12px; }
.mini-table { display: grid; gap: 6px; margin: 12px 0; }
@media (max-width: 900px) { .intent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .intent-grid, .tools-grid, .compare-input-grid { grid-template-columns: 1fr; } .intent-card, .tool-card { padding: 22px; } }

.posture-card { overflow: hidden; }
.posture-top { position: relative; min-height: 190px; padding: 22px; background: var(--paper-2); }
.posture-card:nth-child(2) .posture-top { background: var(--sage-soft); }
.posture-card:nth-child(3) .posture-top { background: var(--lavender-soft); }
.posture-figure { position: absolute; inset: auto 28px 25px; height: 115px; }
.bed-line { position: absolute; left: 0; right: 0; bottom: 0; height: 16px; border-radius: 9px; background: var(--sand); }
.body-line { position: absolute; left: 28%; bottom: 17px; width: 45%; height: 18px; border-radius: 99px; background: var(--ink); opacity: .86; transform: rotate(-2deg); }
.head-dot { position: absolute; right: 14%; bottom: 32px; width: 47px; height: 47px; border-radius: 50%; background: var(--coral); }
.mini-pillow { position: absolute; right: 10%; bottom: 16px; width: 80px; height: 30px; border: 2px solid var(--ink); border-radius: 40%; background: #fff; }
.posture-card:nth-child(2) .body-line { left: 22%; width: 55%; height: 12px; transform: none; }
.posture-card:nth-child(2) .head-dot { right: 10%; bottom: 28px; }
.posture-card:nth-child(2) .mini-pillow { right: 6%; width: 72px; height: 25px; }
.posture-card:nth-child(3) .body-line { left: 18%; width: 58%; height: 13px; transform: rotate(1deg); }
.posture-card:nth-child(3) .head-dot { right: 8%; bottom: 22px; }
.posture-card:nth-child(3) .mini-pillow { right: 5%; width: 65px; height: 18px; }
.posture-body { padding: 26px; }
.posture-body h3 { margin-bottom: 10px; }
.posture-body p { min-height: 84px; color: var(--muted); }
.posture-body .link-arrow { margin-top: 20px; }

.alt-bg { background: rgba(255,244,236,.66); border-block: 1px solid rgba(234,223,215,.7); }
.tool-card { position: relative; overflow: hidden; min-height: 320px; padding: 34px; }
.tool-card::after { content: ""; position: absolute; right: -54px; bottom: -58px; width: 190px; height: 190px; border-radius: 50%; background: var(--coral-soft); }
.tool-card.sage::after { background: var(--sage-soft); }
.tool-card.lavender::after { background: var(--lavender-soft); }
.tool-icon { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 48px; border-radius: 17px; background: var(--coral-soft); color: var(--coral-dark); font-size: 25px; font-weight: 900; }
.tool-card.sage .tool-icon { background: var(--sage-soft); color: var(--sage-dark); }
.tool-card.lavender .tool-icon { background: var(--lavender-soft); color: var(--lavender); }
.tool-card h3 { margin-bottom: 12px; }
.tool-card p { max-width: 360px; color: var(--muted); }
.tool-card .link-arrow { position: relative; z-index: 1; margin-top: 28px; }

.height-demo { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: center; }
.height-visual {
  position: relative;
  min-height: 390px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
}
.ruler { position: absolute; right: 34px; top: 42px; bottom: 42px; width: 38px; border-left: 2px solid var(--ink); }
.ruler i { position: absolute; left: -1px; width: 14px; height: 1px; background: var(--ink); }
.ruler i::after { position: absolute; left: 18px; top: -10px; color: var(--muted); font-style: normal; font-size: 12px; }
.ruler i:nth-child(1) { bottom: 0; } .ruler i:nth-child(1)::after { content: "0"; }
.ruler i:nth-child(2) { bottom: 25%; } .ruler i:nth-child(2)::after { content: "5"; }
.ruler i:nth-child(3) { bottom: 50%; } .ruler i:nth-child(3)::after { content: "10"; }
.ruler i:nth-child(4) { bottom: 75%; } .ruler i:nth-child(4)::after { content: "15"; }
.ruler i:nth-child(5) { bottom: 100%; } .ruler i:nth-child(5)::after { content: "20cm"; }
.height-stack { position: absolute; left: 42px; right: 92px; bottom: 42px; height: 250px; display: flex; flex-direction: column; justify-content: flex-end; gap: 10px; }
.height-layer { display: flex; align-items: center; justify-content: space-between; min-height: 54px; padding: 0 18px; border-radius: 16px; font-weight: 850; }
.height-layer.head { height: 72px; background: var(--coral-soft); color: var(--coral-dark); }
.height-layer.pillow { height: 92px; background: var(--sage-soft); color: var(--sage-dark); }
.height-layer.mattress { height: 64px; background: var(--sand); color: #73563d; }
.height-copy h2 { margin-bottom: 20px; }
.height-copy .lead { margin-bottom: 26px; }
.check-list { display: grid; gap: 13px; margin: 24px 0 30px; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 12px; }
.check-list li::before { content: "✓"; display: grid; place-items: center; flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%; background: var(--sage-soft); color: var(--sage-dark); font-size: 12px; font-weight: 900; }

.material-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.material-pill { min-height: 145px; padding: 20px 16px; border: 1px solid var(--line); border-radius: 20px; background: #fff; text-align: center; box-shadow: var(--shadow-sm); }
.material-icon { display: grid; place-items: center; width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 14px; background: var(--paper-2); font-size: 20px; }
.material-pill strong { display: block; margin-bottom: 5px; }
.material-pill small { color: var(--muted); }

.evidence { position: relative; overflow: hidden; padding: 48px; border-radius: var(--radius-lg); background: var(--ink); color: #fff; }
.evidence::after { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; box-shadow: 0 0 0 40px rgba(255,255,255,.025), 0 0 0 80px rgba(255,255,255,.018); }
.evidence-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .85fr 1.15fr; gap: 58px; align-items: center; }
.evidence .eyebrow { color: #ffb8a9; }
.evidence .lead { color: #c7d0d5; }
.evidence-points { display: grid; gap: 13px; }
.evidence-point { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 16px; border: 1px solid rgba(255,255,255,.12); border-radius: 16px; background: rgba(255,255,255,.055); }
.evidence-point b { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 13px; background: rgba(255,255,255,.1); color: #ffd0c6; }
.evidence-point p { color: #c7d0d5; font-size: 14px; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.article-card { overflow: hidden; }
.article-cover { display: flex; align-items: flex-end; min-height: 190px; padding: 22px; background: var(--coral-soft); }
.article-card:nth-child(2) .article-cover { background: var(--sage-soft); }
.article-card:nth-child(3) .article-cover { background: var(--lavender-soft); }
.article-card:nth-child(4) .article-cover { background: #f7e9c9; }
.article-card:nth-child(5) .article-cover { background: #e7eef8; }
.article-cover span { padding: 7px 11px; border-radius: 99px; background: rgba(255,255,255,.85); font-size: 12px; font-weight: 850; }
.article-body { padding: 24px; }
.article-body h3 { margin-bottom: 12px; font-size: 22px; }
.article-body p { color: var(--muted); font-size: 15px; }
.article-body .link-arrow { margin-top: 20px; font-size: 14px; }

.newsletter { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; padding: 44px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--coral-soft), #fff 56%, var(--sage-soft)); }
.newsletter-form { display: flex; gap: 10px; padding: 8px; border: 1px solid rgba(255,255,255,.9); border-radius: 999px; background: rgba(255,255,255,.78); box-shadow: var(--shadow-sm); }
.newsletter-form input { width: 100%; min-width: 0; padding: 0 16px; border: 0; outline: none; background: transparent; color: var(--ink); }
.form-message { min-height: 24px; margin-top: 8px; padding-left: 16px; color: var(--sage-dark); font-size: 13px; font-weight: 700; }

.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.faq-list summary { position: relative; padding: 22px 56px 22px 24px; list-style: none; font-weight: 850; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--paper-2); color: var(--coral-dark); font-size: 20px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 24px 22px; color: var(--muted); }

.final-cta { text-align: center; }
.final-cta-inner { position: relative; overflow: hidden; padding: 70px 30px; border-radius: var(--radius-lg); background: var(--coral); color: #fff; box-shadow: var(--shadow); }
.final-cta-inner::before, .final-cta-inner::after { content: ""; position: absolute; border: 2px solid rgba(255,255,255,.18); border-radius: 50%; }
.final-cta-inner::before { width: 260px; height: 260px; left: -100px; top: -120px; }
.final-cta-inner::after { width: 340px; height: 340px; right: -160px; bottom: -230px; }
.final-cta h2 { position: relative; z-index: 1; max-width: 760px; margin: 0 auto 18px; }
.final-cta p { position: relative; z-index: 1; max-width: 620px; margin: 0 auto 28px; color: #ffe9e4; }
.final-cta .btn { position: relative; z-index: 1; }

.site-footer { padding: 64px 0 28px; border-top: 1px solid var(--line); background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 40px; }
.footer-brand p { max-width: 340px; margin-top: 16px; color: var(--muted); }
.footer-col h4 { margin-bottom: 16px; font-size: 15px; }
.footer-col a { display: block; margin: 9px 0; color: var(--muted); font-size: 14px; }
.footer-col a:hover { color: var(--coral-dark); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

.page-hero { padding: 74px 0 54px; text-align: center; }
.page-hero h1 { max-width: 920px; margin-inline: auto; font-size: clamp(38px, 5.4vw, 64px); }
.page-hero .lead { max-width: 720px; margin: 20px auto 0; }
.breadcrumb { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; color: var(--muted); font-size: 13px; }
.breadcrumb a:hover { color: var(--coral-dark); }

.quiz-shell { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 30px; align-items: start; }
.quiz-sidebar { position: sticky; top: 105px; padding: 24px; }
.progress-label { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 10px; font-size: 13px; font-weight: 800; }
.progress-track { height: 8px; overflow: hidden; border-radius: 99px; background: var(--paper-2); }
.progress-fill { width: 16.6%; height: 100%; border-radius: inherit; background: var(--coral); transition: width .25s ease; }
.quiz-steps { display: grid; gap: 10px; margin-top: 24px; }
.quiz-step-label { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; font-weight: 700; }
.quiz-step-label i { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: var(--paper-2); color: var(--muted); font-style: normal; }
.quiz-step-label.active { color: var(--ink); }
.quiz-step-label.active i { background: var(--coral); color: #fff; }
.quiz-step-label.done i { background: var(--sage); color: #fff; }
.quiz-main { min-height: 570px; padding: 38px; }
.quiz-question { animation: fade-up .25s ease both; }
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } }
.question-count { margin-bottom: 10px; color: var(--coral-dark); font-size: 13px; font-weight: 850; }
.quiz-question h2 { max-width: 700px; font-size: clamp(28px, 3.4vw, 42px); }
.quiz-question > p { margin-top: 12px; color: var(--muted); }
.quiz-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 30px; }
.quiz-option {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 92px;
  padding: 18px;
  border: 2px solid var(--line);
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  transition: .2s ease;
}
.quiz-option:hover { border-color: #d4bfb2; transform: translateY(-2px); }
.quiz-option.selected { border-color: var(--coral); background: var(--coral-soft); }
.option-icon { display: grid; place-items: center; flex: 0 0 48px; width: 48px; height: 48px; border-radius: 14px; background: var(--paper-2); font-size: 22px; }
.option-copy strong { display: block; margin-bottom: 3px; }
.option-copy small { display: block; color: var(--muted); line-height: 1.5; }
.quiz-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 34px; }
.quiz-result { animation: fade-up .35s ease both; }
.result-hero { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.result-badge { display: inline-flex; padding: 7px 11px; border-radius: 99px; background: var(--sage-soft); color: var(--sage-dark); font-size: 13px; font-weight: 850; }
.result-title { margin-top: 14px; font-size: clamp(32px, 4vw, 50px); }
.result-height { display: grid; place-items: center; width: 150px; height: 150px; border-radius: 50%; background: var(--coral-soft); color: var(--coral-dark); text-align: center; }
.result-height strong { display: block; font-size: 32px; line-height: 1.1; }
.result-height small { font-weight: 800; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
.result-tile { padding: 20px; border-radius: 17px; background: var(--paper-2); }
.result-tile small { display: block; margin-bottom: 6px; color: var(--muted); }
.result-tile strong { display: block; }
.result-reasons { margin-top: 28px; padding: 24px; border-radius: 18px; background: var(--sage-soft); }
.result-reasons h3 { margin-bottom: 14px; font-size: 20px; }
.result-reasons ul { margin: 0; padding-left: 20px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.calculator-layout { display: grid; grid-template-columns: 1fr .9fr; gap: 30px; align-items: start; }
.form-card { padding: 32px; }
.form-group + .form-group { margin-top: 24px; }
.form-label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 10px; font-weight: 850; }
.form-hint { color: var(--muted); font-size: 13px; }
.segmented { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.segmented.three { grid-template-columns: repeat(3, 1fr); }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label { display: grid; place-items: center; min-height: 54px; padding: 8px; border: 1px solid var(--line); border-radius: 13px; background: #fff; text-align: center; font-size: 14px; font-weight: 800; cursor: pointer; }
.segmented input:checked + label { border-color: var(--coral); background: var(--coral-soft); color: var(--coral-dark); }
.range-wrap { display: grid; grid-template-columns: 1fr 78px; gap: 14px; align-items: center; }
input[type="range"] { width: 100%; accent-color: var(--coral); }
.range-output { display: grid; place-items: center; min-height: 44px; border-radius: 12px; background: var(--paper-2); font-weight: 900; }
.calc-result-card { position: sticky; top: 105px; overflow: hidden; }
.calc-result-top { padding: 32px; background: var(--ink); color: #fff; }
.calc-number { margin: 12px 0 4px; font-size: 58px; font-weight: 900; line-height: 1; letter-spacing: -.05em; }
.calc-range { color: #c9d3d8; }
.calc-result-body { padding: 28px; }
.alignment-meter { position: relative; height: 120px; margin: 18px 0 22px; border-radius: 18px; background: linear-gradient(to right, var(--coral-soft) 0 33%, var(--sage-soft) 33% 66%, var(--lavender-soft) 66% 100%); }
.alignment-meter::before { content: "偏低"; position: absolute; left: 12px; bottom: 8px; font-size: 11px; color: var(--muted); }
.alignment-meter::after { content: "偏高"; position: absolute; right: 12px; bottom: 8px; font-size: 11px; color: var(--muted); }
.meter-pointer { position: absolute; left: 50%; top: 15px; width: 4px; height: 72px; border-radius: 99px; background: var(--ink); transform: translateX(-50%); transition: left .25s ease; }
.meter-pointer::before { content: ""; position: absolute; left: 50%; top: -3px; width: 16px; height: 16px; border-radius: 50%; background: var(--coral); transform: translateX(-50%); }

.filter-bar { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 28px; }
.filter-chip { min-height: 40px; padding: 0 14px; border: 1px solid var(--line); border-radius: 99px; background: #fff; color: var(--muted); font-weight: 800; }
.filter-chip.active { border-color: var(--ink); background: var(--ink); color: #fff; }
.compare-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.compare-card { padding: 26px; }
.compare-card[hidden] { display: none; }
.compare-card .material-icon { margin: 0 0 18px; }
.score-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 13px; }
.dots { display: flex; gap: 4px; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.dots i.on { background: var(--coral); }
.pros-cons { display: grid; gap: 8px; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; }
.pros-cons span { display: flex; gap: 8px; color: var(--muted); }
.pros-cons b { color: var(--sage-dark); }
.pros-cons .minus b { color: var(--coral-dark); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.compare-table { width: 100%; min-width: 860px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare-table th { background: var(--paper-2); font-size: 13px; }
.compare-table td { color: var(--muted); font-size: 14px; }
.compare-table tr:last-child td { border-bottom: 0; }

.guides-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 34px; align-items: start; }
.guide-sidebar { position: sticky; top: 105px; padding: 22px; }
.guide-sidebar h3 { margin-bottom: 14px; font-size: 16px; }
.guide-sidebar a { display: block; padding: 10px 12px; border-radius: 10px; color: var(--muted); font-size: 14px; font-weight: 750; }
.guide-sidebar a:hover, .guide-sidebar a.active { background: var(--paper-2); color: var(--coral-dark); }
.guide-list { display: grid; gap: 18px; }
.guide-row { display: grid; grid-template-columns: 190px 1fr; overflow: hidden; }
.guide-row-cover { min-height: 190px; background: var(--coral-soft); }
.guide-row:nth-child(2) .guide-row-cover { background: var(--sage-soft); }
.guide-row:nth-child(3) .guide-row-cover { background: var(--lavender-soft); }
.guide-row:nth-child(4) .guide-row-cover { background: #f7e9c9; }
.guide-row:nth-child(5) .guide-row-cover { background: #e7eef8; }
.guide-row-body { padding: 26px; }
.guide-row-body .meta { margin-bottom: 10px; color: var(--muted); font-size: 12px; }
.guide-row-body h2 { margin-bottom: 10px; font-size: 27px; }
.guide-row-body p { color: var(--muted); }
.guide-row-body .link-arrow { margin-top: 18px; }

.article-page { padding: 52px 0 90px; }
.article-header { max-width: 900px; margin: 0 auto 44px; text-align: center; }
.article-header .category { display: inline-flex; padding: 7px 11px; border-radius: 99px; background: var(--coral-soft); color: var(--coral-dark); font-size: 13px; font-weight: 850; }
.article-header h1 { margin-top: 16px; font-size: clamp(38px, 5.2vw, 64px); }
.article-header .lead { margin-top: 18px; }
.article-meta { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; color: var(--muted); font-size: 13px; }
.article-cover-large { min-height: 370px; margin-bottom: 50px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--coral-soft), #fff 56%, var(--sage-soft)); box-shadow: var(--shadow-sm); }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 250px; justify-content: center; gap: 54px; align-items: start; }
.prose { font-size: 17px; line-height: 1.95; }
.prose h2 { margin: 52px 0 18px; font-size: 31px; }
.prose h3 { margin: 34px 0 14px; font-size: 23px; }
.prose p { margin: 18px 0; }
.prose ul, .prose ol { margin: 18px 0; padding-left: 24px; }
.prose li { margin: 10px 0; }
.prose strong { color: #172229; }
.prose a { color: var(--coral-dark); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose blockquote { margin: 28px 0; padding: 20px 24px; border-left: 4px solid var(--coral); border-radius: 0 16px 16px 0; background: var(--paper-2); font-size: 18px; font-weight: 750; }
.callout { margin: 30px 0; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-sm); }
.callout.warning { border-color: #f0c99b; background: #fff8e9; }
.callout.sage { border-color: #bad6cc; background: var(--sage-soft); }
.callout h3 { margin: 0 0 8px; font-size: 19px; }
.callout p { margin: 0; color: #54636b; }
.article-toc { position: sticky; top: 105px; padding: 22px; }
.article-toc h3 { margin-bottom: 12px; font-size: 15px; }
.article-toc a { display: block; padding: 7px 0; color: var(--muted); font-size: 13px; }
.article-toc a:hover { color: var(--coral-dark); }
.source-list { font-size: 14px; }
.source-list li { margin: 12px 0; }
.author-box { display: grid; grid-template-columns: 64px 1fr; gap: 16px; margin-top: 50px; padding: 24px; border-radius: 20px; background: var(--paper-2); }
.author-avatar { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 20px; background: var(--coral); color: #fff; font-size: 28px; font-weight: 900; }
.author-box h3 { margin: 0 0 6px; font-size: 19px; }
.author-box p { margin: 0; color: var(--muted); font-size: 14px; }

.content-page { padding: 60px 0 90px; }
.content-card { padding: 42px; }
.content-card h2 { margin: 36px 0 12px; font-size: 28px; }
.content-card h2:first-child { margin-top: 0; }
.content-card p, .content-card li { color: #55636b; }
.content-card ul { padding-left: 20px; }

.toast { position: fixed; left: 50%; bottom: 24px; z-index: 500; transform: translate(-50%, 120px); padding: 12px 18px; border-radius: 99px; background: var(--ink); color: #fff; box-shadow: var(--shadow); font-size: 14px; font-weight: 800; opacity: 0; transition: .25s ease; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

:focus-visible { outline: 3px solid rgba(232,111,90,.45); outline-offset: 3px; }

@media (max-width: 1020px) {
  .nav-links, .nav-actions .btn { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav {
    position: fixed;
    inset: 77px 0 auto;
    display: grid;
    gap: 4px;
    padding: 18px 20px 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(255,250,246,.98);
    transform: translateY(-130%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: .22s ease;
  }
  .nav-open .mobile-nav { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
  .mobile-nav a { padding: 13px 8px; border-bottom: 1px solid var(--line); font-weight: 800; }
  .mobile-nav .btn { margin-top: 10px; }
  .hero-grid, .height-demo, .evidence-grid, .newsletter, .calculator-layout { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy .lead { margin-inline: auto; }
  .hero-actions, .hero-note { justify-content: center; }
  .hero-visual { width: min(100%, 600px); margin-inline: auto; }
  .material-grid { grid-template-columns: repeat(3, 1fr); }
  .quiz-shell, .guides-layout { grid-template-columns: 1fr; }
  .quiz-sidebar, .guide-sidebar { position: static; }
  .quiz-steps { display: none; }
  .article-layout { grid-template-columns: minmax(0, 760px); }
  .article-toc { display: none; }
  .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
  .footer-col:last-child { grid-column: 2 / 4; }
}

@media (max-width: 760px) {
  .container, .narrow { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 68px 0; }
  .section-sm { padding: 46px 0; }
  .navbar { min-height: 68px; }
  .mobile-nav { inset: 69px 0 auto; }
  .announcement .container { min-height: 42px; }
  .hero { padding: 52px 0 42px; }
  .hero-grid { gap: 36px; }
  .hero-visual { min-height: 390px; }
  .hero-card { inset: 35px 13px 25px; border-radius: 34px; }
  .float-card { padding: 9px 11px; font-size: 12px; }
  .float-card b { width: 25px; height: 25px; }
  .float-card.one { left: 0; top: 48px; }
  .float-card.two { right: 0; top: 155px; }
  .float-card.three { bottom: 10px; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item + .trust-item { border-left: 0; border-top: 1px solid var(--line); }
  .cards-3, .cards-2, .article-grid, .compare-cards { grid-template-columns: 1fr; }
  .material-grid { grid-template-columns: repeat(2, 1fr); }
  .evidence, .newsletter, .content-card { padding: 28px; }
  .newsletter-form { border-radius: 18px; flex-direction: column; }
  .newsletter-form input { min-height: 46px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  .page-hero { padding: 52px 0 36px; }
  .quiz-main, .form-card { padding: 24px; }
  .quiz-options { grid-template-columns: 1fr; }
  .result-hero { grid-template-columns: 1fr; }
  .result-height { width: 125px; height: 125px; }
  .result-grid { grid-template-columns: 1fr; }
  .segmented, .segmented.three { grid-template-columns: repeat(2, 1fr); }
  .guide-row { grid-template-columns: 1fr; }
  .guide-row-cover { min-height: 130px; }
  .article-cover-large { min-height: 240px; margin-bottom: 34px; }
  .prose { font-size: 16px; }
  .author-box { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}