:root {
  --ink: #1f2523;
  --muted: #6e7771;
  --line: #e4e7e1;
  --paper: #f7f8f4;
  --white: #fff;
  --sage: #8da499;
  --sage-deep: #5f766c;
  --warm: #d9c6a9;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(247,248,244,.94); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(228,231,225,.8); }
.nav { max-width: 1240px; height: 76px; margin: auto; padding: 0 32px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); letter-spacing: .06em; }
.brand-logo { width: 38px; height: 38px; object-fit: contain; }
.brand-name { font-size: 18px; }
.nav-links { display: flex; align-items: center; gap: 28px; color: #48534d; font-size: 14px; }
.nav-links a { padding: 6px 0; border-bottom: 1px solid transparent; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--sage-deep); border-bottom-color: var(--sage-deep); }
.mini-program-entry { position: relative; }
.mini-program-entry summary { list-style: none; cursor: pointer; padding: 10px 18px; background: var(--ink); color: var(--white); font-size: 13px; line-height: 24px; }
.mini-program-entry summary::-webkit-details-marker { display: none; }
.mini-program-popover { position: absolute; top: calc(100% + 12px); right: 0; z-index: 30; width: 248px; padding: 16px; display: grid; justify-items: center; gap: 10px; background: var(--white); border: 1px solid var(--line); box-shadow: 0 18px 38px rgba(34, 46, 39, .15); color: var(--ink); font-size: 12px; line-height: 1.5; opacity: 0; visibility: hidden; transform: translateY(-4px); pointer-events: none; transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.mini-program-popover img { width: 216px; height: 216px; object-fit: contain; background: var(--paper); }
.mini-program-entry:hover > .mini-program-popover, .mini-program-entry:focus-within > .mini-program-popover, .mini-program-entry[open] > .mini-program-popover { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.theme-mini-program-entry { display: inline-block; }
.theme-mini-program-entry summary { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 1px solid var(--ink); background: var(--ink); color: var(--white); font-size: 13px; }
.theme-mini-program-entry .mini-program-popover { right: auto; left: 0; }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { list-style: none; cursor: pointer; width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--ink); font-size: 18px; line-height: 1; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu-panel { position: absolute; right: 0; top: 46px; width: 248px; padding: 8px; background: var(--white); border: 1px solid var(--line); box-shadow: 0 12px 30px rgba(34, 46, 39, .12); }
.mobile-menu-panel a { display: block; padding: 10px 12px; font-size: 14px; }
.mobile-mini-program { position: static; width: auto; margin: 8px; opacity: 1; visibility: visible; transform: none; pointer-events: auto; box-shadow: none; }
.shell { max-width: 1240px; margin: auto; padding: 0 32px; }
.hero { min-height: 620px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; align-items: center; padding: 64px 0 84px; }
.eyebrow { color: var(--sage-deep); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.25; margin: 0; }
.hero h1 { margin-top: 18px; font-size: 68px; letter-spacing: 0; line-height: 1.2; }
.hero h1 span { display: block; white-space: nowrap; }
.hero-copy { max-width: 430px; color: var(--muted); font-size: 16px; margin: 24px 0 32px; }
.hero-actions { display: flex; gap: 12px; align-items: center; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 1px solid var(--ink); font-size: 13px; transition: .2s ease; }
.button.primary { color: var(--white); background: var(--ink); }
.button.secondary { background: transparent; }
.button:hover { transform: translateY(-2px); }
.hero-art { position: relative; min-height: 500px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: end; }
.hero-art img { width: 100%; height: 100%; object-fit: contain; background: #eff2ed; }
.hero-main-image { height: 470px; }
.hero-side-image { height: 300px; margin-bottom: 54px; }
.image-frame { background: var(--white); padding: 10px; box-shadow: 0 20px 40px rgba(34, 46, 39, .09); }
.section { padding: 104px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
.section-head h2 { font-size: 40px; }
.section-head p { color: var(--muted); margin: 0; max-width: 420px; }
.theme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.theme-card { background: var(--white); }
.theme-grid > .theme-card { content-visibility: auto; contain-intrinsic-size: auto 430px; }
.theme-scroll-sentinel { height: 1px; }
.theme-feed-status { min-height: 24px; margin: 0 0 44px; color: var(--muted); text-align: center; font-size: 13px; }
.theme-card-image { aspect-ratio: 4 / 3; overflow: hidden; background: #eff2ed; }
.theme-card-image img { width: 100%; height: 100%; object-fit: contain; }
.theme-card { transition: transform .25s ease, box-shadow .25s ease; }
.theme-card:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(34, 46, 39, .08); }
.theme-card-copy { padding: 16px 18px 20px; }
.theme-card-copy h3 { font-size: 21px; }
.theme-card-copy p { color: var(--muted); font-size: 13px; margin: 6px 0 0; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tag { color: var(--sage-deep); background: #edf2ee; padding: 3px 8px; font-size: 11px; }
.band { background: #e9eee9; }
.process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; }
.process-item { border-top: 1px solid var(--sage-deep); padding-top: 18px; }
.process-number { color: var(--sage-deep); font-size: 13px; letter-spacing: .1em; }
.process h3 { margin-top: 18px; font-size: 24px; }
.process p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.page-hero { padding: 92px 0 62px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(42px, 6vw, 72px); margin-top: 14px; }
.page-hero p { max-width: 580px; color: var(--muted); margin: 22px 0 0; }
.page-hero--journal { background: var(--white); border-bottom-color: #d9ded6; }
.page-hero--journal p { color: var(--ink); font-size: 20px; font-weight: 500; line-height: 1.75; }
.page-hero--series { background: var(--white); border-bottom-color: #d9ded6; }
.page-hero--series p { max-width: 680px; color: #425047; font-family: var(--serif); font-size: clamp(17px, 1.7vw, 20px); line-height: 1.75; }
.theme-detail { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr); gap: 70px; padding: 70px 0 110px; }
.theme-detail-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.theme-detail-gallery img { width: 100%; aspect-ratio: 4 / 5; object-fit: contain; background: #eff2ed; }
.theme-detail-copy { position: sticky; top: 110px; align-self: start; }
.theme-detail-copy h1 { font-size: 54px; margin-top: 10px; }
.theme-detail-copy .intro { color: var(--muted); margin: 24px 0; font-size: 16px; }
.article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 54px 0 110px; }
.journal-series-nav { display: flex; flex-wrap: wrap; gap: 8px; padding-top: 34px; }
.journal-series-link { border: 1px solid #aeb9b2; padding: 7px 12px; color: var(--ink); background: var(--white); font-size: 14px; font-weight: 600; transition: .2s ease; }
.journal-series-link:hover, .journal-series-link.is-active { color: var(--white); background: var(--sage-deep); border-color: var(--sage-deep); }
.article-card { display: grid; grid-template-columns: 180px 1fr; min-height: 180px; background: var(--white); }
.article-card-image { background: #e4ebe5; overflow: hidden; }
.article-card-image img { width: 100%; height: 100%; object-fit: contain; }
.article-card-copy { padding: 20px; }
.article-card-copy h2 { font-size: 24px; }
.article-card-copy p { color: #415148; font-size: 15px; line-height: 1.75; }
.article-series-label { display: block; color: var(--ink); margin-bottom: 7px; font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.article-meta { color: #415148; font-size: 13px; font-weight: 500; letter-spacing: .02em; }
.preview-note { margin: 32px 0 -26px; padding: 10px 12px; color: var(--sage-deep); background: #edf2ee; font-size: 12px; }
.article { max-width: 1060px; margin: auto; padding: 62px 0 110px; }
.article-header { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 58px; align-items: center; padding-bottom: 42px; border-bottom: 1px solid var(--line); }
.article h1 { max-width: 620px; margin-top: 14px; font-size: clamp(38px, 4.2vw, 56px); }
.article-series-back { display: inline-block; margin-bottom: 11px; color: var(--sage-deep); font-size: 13px; }
.article-series-back::before { content: '\\2190\\00a0'; }
.article-lede { max-width: 620px; color: var(--muted); font-size: 17px; margin: 18px 0 0; }
.article-cover-frame { min-height: 300px; display: grid; place-items: center; padding: 10px; background: #eff2ed; }
.article-cover { width: 100%; height: 100%; max-height: 320px; object-fit: contain; }
.article-body { max-width: 680px; padding-top: 38px; font-family: var(--serif); font-size: 17px; line-height: 2.05; }
.article-body p { margin: 0 0 1.25em; }
.article-body h2 { margin: 2.25em 0 .8em; font-size: 28px; line-height: 1.35; }
.article-body h2:first-child { margin-top: 0; }
.article-figure { margin: 2em 0 2.35em; padding: 10px; background: #eff2ed; }
.article-inline-image { width: 100%; max-height: 720px; object-fit: contain; }
.article-figure figcaption { padding: 8px 2px 0; color: var(--muted); font-family: var(--sans); font-size: 12px; line-height: 1.6; }
.article-next-step { max-width: 680px; margin-top: 56px; padding: 30px 0 0; border-top: 1px solid var(--line); }
.article-next-step h2 { margin: 10px 0 12px; font-size: 30px; }
.article-next-step > p { margin: 0; color: var(--muted); font-family: var(--sans); font-size: 14px; line-height: 1.8; }
.article-next-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.article-next-actions .theme-mini-program-entry summary { min-height: 44px; }
.theme-related-journal { padding: 0 0 104px; }
.theme-related-journal .article-grid { padding: 0; }
.article-grid--theme { grid-template-columns: repeat(3, 1fr); }
.article-grid--theme .article-card { grid-template-columns: 1fr; min-height: 0; }
.article-grid--theme .article-card-image { aspect-ratio: 4 / 3; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 54px 0 110px; }
.info-card { background: var(--white); padding: 30px; min-height: 190px; }
.info-card h2 { font-size: 26px; margin-bottom: 12px; }
.info-card p { color: var(--muted); margin: 0; }
.info-page { padding: 54px 32px 110px; }
.info-lede { max-width: 720px; margin: 0 0 36px; color: var(--muted); font-family: var(--serif); font-size: 22px; line-height: 1.75; }
.info-index { color: var(--sage-deep); font-size: 12px; }
.service-note { margin-top: 18px; padding: 36px; background: #e9eee9; }
.service-note h2, .about-copy h2 { font-size: 29px; }
.service-note p { max-width: 620px; color: var(--muted); margin: 12px 0 22px; }
.about-copy { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 26px; }
.about-copy section { min-height: 250px; padding: 30px; background: var(--white); }
.about-copy p { color: var(--muted); margin: 14px 0 0; }
@media (min-width: 821px) {
  .about-copy { grid-template-columns: 1fr 1.25fr 1fr; }
  .about-copy h2 { font-size: 28px; white-space: nowrap; }
}
.site-footer { border-top: 1px solid var(--line); padding: 46px 0 26px; color: var(--muted); font-size: 12px; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; }
.footer-links { display: flex; gap: 18px; }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 30px; padding-top: 16px; display: flex; justify-content: space-between; }
@media (max-width: 820px) {
  .nav { height: 66px; padding: 0 18px; }
  .nav-links, .nav > .mini-program-entry { display: none; }
  .mobile-menu { display: block; }
  .shell { padding: 0 18px; }
  .hero { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 70px; }
  .hero h1 { font-size: 42px; }
  .hero-art { min-height: 330px; }
  .hero-main-image { height: 330px; }
  .hero-side-image { height: 210px; margin-bottom: 28px; }
  .section { padding: 70px 0; }
  .section-head { display: block; }
  .section-head h2 { font-size: 34px; margin-bottom: 10px; }
  .theme-grid, .process, .info-grid, .about-copy { grid-template-columns: 1fr; }
  .page-hero { padding: 62px 0 42px; }
  .theme-detail { grid-template-columns: 1fr; gap: 42px; padding-top: 42px; }
  .theme-detail-copy { position: static; grid-row: 1; }
  .theme-detail-copy h1 { font-size: 44px; }
  .article-grid { grid-template-columns: 1fr; padding-top: 36px; }
  .journal-series-nav { padding-top: 28px; }
  .article-card { grid-template-columns: 120px 1fr; }
  .article { padding: 46px 0 76px; }
  .article-header { grid-template-columns: 1fr; gap: 28px; padding-bottom: 30px; }
  .article-cover-frame { min-height: 260px; max-width: 360px; }
  .article-body { padding-top: 30px; }
  .article-next-step { margin-top: 44px; }
  .article-next-step h2 { font-size: 27px; }
  .article-grid--theme { grid-template-columns: 1fr; }
  .theme-related-journal { padding-bottom: 70px; }
  .info-page { padding: 36px 18px 80px; }
  .info-lede { font-size: 19px; }
  .service-note, .about-copy section { padding: 24px; }
  .footer-grid, .footer-bottom { display: block; }
  .footer-links { margin-top: 18px; }
  .footer-bottom > * { margin: 8px 0; }
}
@media (max-width: 390px) {
  .hero h1 { font-size: 38px; }
}