:root {
  --ink: #101820;
  --ink-soft: #3a4b54;
  --muted: #667780;
  --paper: #f4f7f8;
  --paper-deep: #e7eef0;
  --white: #ffffff;
  --teal: #0c6570;
  --teal-deep: #074851;
  --teal-soft: #d3ebee;
  --accent: #c93d28;
  --accent-soft: #fce8e6;
  --line: rgba(16, 24, 32, 0.1);
  --shadow: 0 14px 36px rgba(8, 45, 52, 0.1);
  --radius: 16px;
  --font-sans: "Source Sans 3", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-serif: "Fraunces", "Noto Serif SC", "Songti SC", Georgia, serif;
  --max: 680px;
  --wide: 920px;
  --sticky-h: 4.5rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  background: var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  padding-bottom: calc(var(--sticky-h) + env(safe-area-inset-bottom, 0px));
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.wash {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.48;
  animation: drift 16s ease-in-out infinite alternate;
}
.wash-a {
  width: 52vw; height: 52vw; top: -14vw; left: -12vw;
  background: radial-gradient(circle, #b7dbe0 0%, transparent 70%);
}
.wash-b {
  width: 42vw; height: 42vw; right: -10vw; top: 22vh;
  background: radial-gradient(circle, #f3cfc4 0%, transparent 72%);
  animation-delay: -5s;
}
.grain {
  position: absolute; inset: 0; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@keyframes drift {
  from { transform: translate3d(0,0,0) scale(1); }
  to { transform: translate3d(2.5vw,1.5vh,0) scale(1.06); }
}

.masthead {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(244, 247, 248, 0.94);
  border-bottom: 1px solid var(--line);
}
.masthead-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.7rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  min-width: 0;
}
.brand-mark {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 0.16rem;
  background: var(--teal-deep);
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  min-width: 0;
}
.brand-name {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.15rem, 2.8vw, 1.35rem);
  letter-spacing: 0.14em;
  color: var(--teal-deep);
  line-height: 1.15;
  white-space: nowrap;
}
.brand-en {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.1;
}
.masthead-right {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}
.lang-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--muted);
}
.lang-label { display: none; }
#lang-select {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.35rem 1.6rem 0.35rem 0.55rem;
  font-size: 0.78rem;
  font-family: var(--font-sans);
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 12px) 55%, calc(100% - 7px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  max-width: 7.5rem;
}
.live-pill {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--teal-deep);
  background: var(--teal-soft);
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
}

.hero {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.35rem 1.1rem 0.5rem;
}
.meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.65rem;
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.hot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}
.hero h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4.6vw, 2.65rem);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: 0.01em;
  max-width: 18em;
  color: var(--ink);
}
.lede {
  margin: 1rem 0 0;
  font-size: clamp(1.02rem, 2vw, 1.12rem);
  color: var(--ink-soft);
  max-width: 40rem;
}
.byline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.1rem;
  padding-top: 0.95rem;
  border-top: 1px solid var(--line);
}
.avatar {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
  flex-shrink: 0;
}
.byline strong { display: block; font-size: 0.95rem; }
.byline span { display: block; font-size: 0.78rem; color: var(--muted); }

.proof-strip {
  margin: 1.25rem 0 0.35rem;
  max-width: var(--max);
  padding: 0.95rem 1rem;
  background: rgba(255,255,255,0.82);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.proof-strip p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }
.proof-strip strong { color: var(--teal-deep); }

.story {
  margin-top: 1.5rem;
  max-width: var(--max);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--ink);
}
.story-meta,
.section-kicker,
.download-kicker {
  margin: 0 0 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--teal);
  font-weight: 700;
}
.story p { margin: 0 0 1.2rem; }
.story strong { font-weight: 700; }
.story-h2 {
  margin: 1.6rem 0 0.85rem;
  font-family: var(--font-sans);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.25;
}
.article-figure {
  margin: 0 0 1.35rem;
  max-width: var(--max);
}
.article-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #0b1220;
}
.article-figure figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
}

.loss-callout {
  margin: 0.35rem 0 1.35rem;
  padding: 1rem 1.05rem;
  border-left: 4px solid var(--accent);
  background: linear-gradient(90deg, rgba(201,61,40,0.08), transparent 90%);
  border-radius: 0 12px 12px 0;
  font-family: var(--font-sans);
}
.loss-label {
  margin: 0 0 0.55rem !important;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  font-weight: 800;
}
.loss-callout ul { margin: 0; padding: 0 0 0 1.05rem; }
.loss-callout li { margin: 0.35rem 0; color: var(--ink-soft); font-size: 0.94rem; }
.loss-callout em { font-style: normal; color: var(--accent); font-weight: 800; }

.meme-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1rem 0 1.5rem;
  max-width: var(--max);
}
@media (min-width: 720px) {
  .meme-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.meme-card,
.meme-inline {
  margin: 0 0 1.35rem;
  padding: 0.55rem;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  max-width: 280px;
}
.meme-strip .meme-card {
  margin: 0;
  max-width: none;
}
.meme-strip .meme-card figcaption {
  font-size: 0.7rem;
}
.meme-card img,
.meme-inline img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}
.meme-card figcaption,
.meme-inline figcaption {
  margin-top: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.4;
}
.meme-inline {
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 640px) {
  .meme-strip {
    grid-template-columns: 1fr;
  }
  .meme-inline { max-width: 220px; }
}

.inline-cta {
  margin: 0 0 1.5rem;
  padding: 1.2rem 1.1rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-family: var(--font-sans);
}
.inline-cta-title {
  margin: 0 0 0.35rem !important;
  font-family: var(--font-serif);
  font-size: 1.22rem;
  color: var(--ink);
  font-weight: 700;
}
.inline-cta-sub {
  margin: 0 0 1rem !important;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.bridge {
  margin: 2rem auto 0;
  max-width: var(--max);
  padding: 1.5rem 0 2.3rem;
}
.bridge h2,
.section-head h2,
.closing h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 3.2vw, 2.05rem);
  line-height: 1.3;
  font-weight: 700;
}
.bridge-sub,
.section-note {
  margin: 0.7rem 0 1.15rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}
.section-note { font-size: 0.9rem; margin-bottom: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.3rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: transform 0.2s ease, background 0.2s ease;
}
.btn.primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 10px 22px rgba(12, 101, 112, 0.22);
}
.btn.primary:hover { background: var(--teal-deep); transform: translateY(-1px); }
.btn.compact {
  min-height: 2.5rem;
  padding: 0.5rem 0.95rem;
  font-size: 0.9rem;
  white-space: nowrap;
}
.trust-line {
  margin: 0.75rem 0 0;
  font-size: 0.84rem;
  color: var(--muted);
  font-family: var(--font-sans);
}

.checklist {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.5rem 1.1rem 2.4rem;
  scroll-margin-top: 4.5rem;
}
.section-head { margin-bottom: 1.2rem; max-width: var(--max); }
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}
.check-card {
  background: rgba(255,255,255,0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.15rem 1.1rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}
.check-card:hover { transform: translateY(-2px); }
.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem; height: 2rem;
  margin-bottom: 0.65rem;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-deep);
  font-weight: 800;
}
.check-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.22rem;
  line-height: 1.35;
  font-weight: 700;
}
.check-card p { margin: 0; color: var(--ink-soft); }
.do-now {
  margin-top: 0.85rem !important;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
  color: var(--ink) !important;
  font-weight: 600;
}
.do-now span:first-child {
  margin-right: 0.25rem;
  color: var(--teal);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  font-weight: 800;
}

.closing {
  max-width: var(--max);
  margin: 0 auto 2.4rem;
  padding: 1.4rem 1.1rem 2rem;
}
.closing-body {
  margin: 0.7rem 0 0.9rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}
.closing-highlight {
  margin: 0 0 1.3rem;
  padding: 0.95rem 1rem;
  background: var(--accent-soft);
  border-radius: 12px;
  color: var(--accent);
  font-weight: 800;
  font-size: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(231, 238, 240, 0.7);
}
.footer-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.7rem 1.1rem 2.1rem;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.85rem;
}
.footer-brand strong {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  color: var(--teal-deep);
  font-weight: 900;
  letter-spacing: 0.1em;
}
.footer-brand span,
.disclaimer,
.copyright {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.65;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.15rem;
  margin-bottom: 1rem;
}
.footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  border-bottom: 1px solid transparent;
}
.footer-links a:hover {
  color: var(--teal-deep);
  border-bottom-color: var(--teal);
}
.disclaimer { margin: 0; max-width: 46rem; }
.copyright { margin: 0.7rem 0 0; }

.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 40;
  padding: 0.65rem 0.85rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
  background: rgba(255,255,255,0.96);
  border-top: 1px solid var(--line);
  box-shadow: 0 -10px 28px rgba(8,45,52,0.1);
  transform: translateY(110%);
  transition: transform 0.28s ease;
}
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-inner {
  max-width: var(--wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.sticky-inner strong { display: block; font-size: 0.9rem; line-height: 1.25; }
.sticky-inner span { display: block; font-size: 0.72rem; color: var(--muted); margin-top: 0.1rem; }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible, .reveal.in { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: 0.07s; }
.reveal.delay-2 { transition-delay: 0.14s; }
.reveal.delay-3 { transition-delay: 0.21s; }

html[dir="rtl"] .loss-callout {
  border-left: none;
  border-right: 4px solid var(--accent);
  border-radius: 12px 0 0 12px;
  background: linear-gradient(-90deg, rgba(201,61,40,0.08), transparent 90%);
}
html[dir="rtl"] .loss-callout ul { padding: 0 1.05rem 0 0; }

@media (min-width: 760px) {
  .card-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .lang-label { display: inline; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wash { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .sticky-cta { transition: none; }
}