:root {
  --indigo: #4c3aa5;
  --indigo-dark: #302474;
  --pink: #f19ab5;
  --pink-soft: #fde8ef;
  --ink: #22222b;
  --muted: #676474;
  --paper: #f5f3f8;
  --white: #ffffff;
  --line: #ddd8e7;
  --success: #dff4ea;
  --danger: #fff0f0;
  --shadow: 0 18px 48px rgba(48, 36, 116, .10);
  --radius: 22px;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.75; }
a { color: var(--indigo-dark); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: #b54f78; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--pink); outline-offset: 4px; border-radius: 4px; }
img { display: block; max-width: 100%; height: auto; border-radius: var(--radius); }
.skip-link { position: absolute; left: -999px; top: 1rem; z-index: 20; background: var(--white); padding: .7rem 1rem; }
.skip-link:focus { left: 1rem; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 1.5rem; padding: 1rem clamp(1rem, 4vw, 4.5rem); border-bottom: 1px solid rgba(76,58,165,.14); background: rgba(245,243,248,.94); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; gap: .75rem; margin-right: auto; color: var(--ink); text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2.55rem; height: 2.55rem; border-radius: 12px; color: white; font-weight: 800; background: linear-gradient(135deg, var(--indigo), #806bd4 58%, var(--pink)); box-shadow: 0 8px 24px rgba(76,58,165,.24); }
.brand strong, .brand small { display: block; line-height: 1.25; }
.brand small { color: var(--muted); font-size: .72rem; margin-top: .15rem; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .35rem .8rem; max-width: 70%; }
.site-nav a { color: var(--ink); font-size: .9rem; text-decoration: none; padding: .35rem .2rem; }
.site-nav a:hover { color: var(--indigo); }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--white); padding: .55rem .8rem; border-radius: 10px; color: var(--ink); font: inherit; }
main { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(2.5rem, 6vw, 6rem) 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.025em; }
h1 { max-width: 900px; font-size: clamp(2.25rem, 6vw, 5.3rem); margin: 0 0 2rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); margin: 0 0 1rem; }
h3 { font-size: 1.12rem; }
p { margin-top: 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .45rem; color: var(--muted); font-size: .88rem; margin-bottom: 1.7rem; }
.breadcrumbs a { color: var(--muted); }
.kicker, .eyebrow { margin: 0 0 .6rem; color: var(--indigo); font-size: .76rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.lead { max-width: 820px; color: #44414f; font-size: clamp(1.08rem, 2vw, 1.28rem); }
.hero { display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: clamp(2rem, 5vw, 5rem); min-height: 62vh; padding-bottom: 4rem; }
.home h1 { margin-bottom: 1.3rem; }
.hero-visual { margin: 0; position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: -8% 8% 10% -8%; z-index: -1; border-radius: 40px; background: linear-gradient(135deg, var(--pink-soft), #ded8fa); transform: rotate(-3deg); }
figcaption { color: var(--muted); font-size: .78rem; margin-top: .65rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.8rem 0; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.8rem; padding: .7rem 1.1rem; border-radius: 999px; font-weight: 750; text-decoration: none; }
.button.primary { color: white; background: var(--indigo); box-shadow: 0 10px 24px rgba(76,58,165,.22); }
.button.secondary { background: var(--white); border: 1px solid var(--line); color: var(--indigo-dark); }
.trust-strip { display: flex; flex-wrap: wrap; gap: .55rem; padding: 0; margin: 0; list-style: none; }
.trust-strip li { background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: .3rem .7rem; font-size: .78rem; color: var(--muted); }
.section-block { padding: clamp(3rem, 7vw, 6rem) 0; }
.section-block.compact { max-width: 820px; padding-top: 2rem; }
.section-heading { max-width: 720px; margin-bottom: 2rem; }
.section-heading h2 { margin-bottom: .5rem; }
.tinted { position: relative; }
.tinted::before { content: ""; position: absolute; inset: 0 calc((100vw - 100%) / -2); z-index: -1; background: #ece9f4; }
.card-grid { display: grid; gap: 1.1rem; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .comment-card { margin: 0; padding: 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.84); box-shadow: 0 10px 30px rgba(34,34,43,.04); }
.card h3 { margin: 0 0 .75rem; }
.card h3 a { color: var(--ink); }
.card p:last-child { margin-bottom: 0; }
.channel-card { border-top: 4px solid var(--pink); }
.article-card { display: flex; flex-direction: column; }
.article-card .byline { margin-top: auto; padding-top: .8rem; font-size: .83rem; color: var(--muted); }
.knowledge { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3rem; align-items: start; }
.method-card { padding: 1.6rem; border-radius: var(--radius); color: white; background: var(--ink); box-shadow: var(--shadow); }
.method-card ol { padding: 0; margin: 0; list-style: none; counter-reset: method; }
.method-card li { display: grid; grid-template-columns: auto 1fr; gap: .35rem .8rem; padding: 1rem 0; border-top: 1px solid rgba(255,255,255,.14); counter-increment: method; }
.method-card li::before { content: counter(method, decimal-leading-zero); color: var(--pink); font-weight: 800; grid-row: 1 / 3; }
.method-card strong, .method-card span { display: block; }
.method-card span { color: #c8c5d2; font-size: .88rem; }
.tool-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; padding: 0; list-style: none; }
.tool-list a { display: block; min-height: 100%; padding: 1.25rem; border-radius: var(--radius); background: var(--white); border: 1px solid var(--line); text-decoration: none; }
.tool-list strong, .tool-list span { display: block; }
.tool-list span { color: var(--muted); margin-top: .35rem; font-size: .9rem; }
.faq details { border-top: 1px solid var(--line); padding: 1rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 750; }
.faq details p { padding-top: .8rem; max-width: 780px; color: var(--muted); }
.sample-notice, .notice { padding: 1rem 1.2rem; border-left: 4px solid var(--indigo); border-radius: 0 14px 14px 0; background: #ece9fa; }
.notice.danger { border-left-color: #ad4665; background: var(--danger); }
.comment-card p { font-size: 1.02rem; }
.comment-card cite { color: var(--muted); font-size: .82rem; font-style: normal; }
.section-link { margin-top: 1.5rem; font-weight: 750; }
.channel-intro { display: grid; grid-template-columns: 1fr .8fr; gap: 3rem; align-items: center; }
.channel-intro img { box-shadow: var(--shadow); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 3.5rem; }
.article-header { grid-column: 1 / -1; }
.article-header .lead { max-width: 920px; }
.article-header img { margin-top: 2rem; width: 100%; max-height: 520px; object-fit: cover; box-shadow: var(--shadow); }
.article-meta { display: flex; flex-wrap: wrap; gap: .55rem 1.2rem; color: var(--muted); font-size: .85rem; }
.article-body { font-size: 1.03rem; }
.article-body > section { padding: 1rem 0; }
.article-intro { font-size: 1.2rem; color: #3f3c49; border-left: 4px solid var(--pink); padding-left: 1.1rem; }
.takeaway { margin: 1.5rem 0; padding: 1.3rem 1.5rem !important; border-radius: var(--radius); background: var(--pink-soft); }
.article-aside { align-self: start; position: sticky; top: 7rem; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.article-aside h2 { font-size: 1rem; margin-top: 1rem; }
.article-aside h2:first-child { margin-top: 0; }
.article-aside ul { padding-left: 1.1rem; }
.article-aside .button { width: 100%; margin-top: 1rem; }
.tag-list { display: flex; flex-wrap: wrap; gap: .45rem; }
.tag-list a { padding: .28rem .55rem; border-radius: 999px; background: var(--pink-soft); font-size: .78rem; text-decoration: none; }
.profile { display: grid; grid-template-columns: 110px 1fr; gap: 1.5rem; align-items: center; max-width: 860px; }
.profile-mark { display: grid; place-items: center; width: 110px; height: 110px; border-radius: 34px; color: white; background: linear-gradient(135deg, var(--indigo), var(--pink)); font-size: 2.7rem; font-weight: 850; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
table { border-collapse: collapse; width: 100%; min-width: 660px; }
th, td { padding: 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
thead { background: #ebe7f5; }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.step-list { padding: 0; list-style: none; counter-reset: steps; }
.step-list li { counter-increment: steps; position: relative; padding: 1.2rem 1.2rem 1.2rem 4.7rem; margin: .8rem 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.step-list li::before { content: counter(steps, decimal-leading-zero); position: absolute; left: 1.2rem; top: 1.1rem; color: var(--indigo); font-size: 1.4rem; font-weight: 850; }
.step-list h3 { margin: 0 0 .35rem; }
.step-list p { margin: 0; }
.prose { max-width: 790px; }
.prose.policy section { padding: 1.1rem 0; border-top: 1px solid var(--line); }
.empty-state { max-width: 700px; padding: 3rem; border-radius: 30px; background: var(--white); box-shadow: var(--shadow); }
.error-code { margin: 0; color: var(--pink); font-size: 5rem; font-weight: 900; line-height: 1; }
.site-footer { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; padding: 3rem clamp(1rem, 4vw, 4.5rem); color: #d9d7e0; background: var(--ink); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .4rem 1rem; justify-content: flex-end; }
.site-footer a { color: white; }
.site-footer p { margin-bottom: 0; }
.status-note { grid-column: 1 / -1; color: var(--pink); font-size: .85rem; }
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; position: absolute; left: 1rem; right: 1rem; top: calc(100% + .35rem); max-width: none; padding: 1rem; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: var(--shadow); }
  .site-nav.is-open { display: grid; grid-template-columns: repeat(2, 1fr); }
  .hero, .channel-intro, .knowledge { grid-template-columns: 1fr; min-height: auto; }
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .card-grid.three { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  main { width: min(100% - 1.25rem, 1180px); padding-top: 2.2rem; }
  .site-header { padding: .8rem; }
  .brand small { display: none; }
  .hero { padding-bottom: 2rem; }
  .card-grid.two, .card-grid.three, .tool-list, .check-grid, .site-footer { grid-template-columns: 1fr; }
  .site-footer nav { justify-content: flex-start; }
  .profile { grid-template-columns: 1fr; }
  .profile-mark { width: 84px; height: 84px; border-radius: 26px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}