/* EASP × FISS 2027 首頁樣式（Claude 風格）。由 styles.css、redesign.css（homepage-samples-20260920-no-earth）與 claude-site.css 合併。 */
:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --surface-2: #ececec;
  --ink: #111111;
  --muted: #666666;
  --line: #d8d8d8;
  --accent: #1263ff;
  --accent-ink: #ffffff;
  --dark: #0b0b0b;
  --dark-ink: #ffffff;
  --radius: 12px;
  --max: 1240px;
  --body-font: Arial, Helvetica, sans-serif;
  --display-font: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 132px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-family: var(--display-font); }
img, video, svg { display: block; max-width: 100%; }
.wrap { width: min(var(--max), calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: -80px; left: 24px; z-index: 500; background: var(--accent); color: var(--accent-ink); padding: 10px 16px; }
.skip-link:focus { top: 16px; }

.sample-switcher {
  position: sticky;
  inset: 0 0 auto;
  z-index: 200;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 7px 20px;
  color: #f7f7f7;
  background: #111214;
  border-bottom: 1px solid #35363a;
  font: 12px/1.2 Arial, sans-serif;
}
.sample-switcher > span { color: #a9abb2; white-space: nowrap; }
.sample-nav { display: flex; gap: 5px; overflow-x: auto; scrollbar-width: none; }
.sample-nav::-webkit-scrollbar { display: none; }
.sample-nav a { padding: 7px 11px; border-radius: 999px; white-space: nowrap; transition: background .2s, color .2s; }
.sample-nav a:hover { background: #2b2d32; }
.sample-nav a[aria-current="page"] { color: #111; background: #fff; }

.site-header { position: relative; z-index: 100; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(18px); }
.header-row { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 13px; min-height: 44px; }
.brand-lockup { font-family: var(--display-font); font-weight: 750; font-size: 23px; line-height: .95; letter-spacing: -.04em; }
.brand-lockup small { display: block; margin-top: 7px; color: var(--muted); font-family: var(--body-font); font-size: 9px; font-weight: 600; letter-spacing: .18em; }
.header-mark { width: 48px; height: 25px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }
.header-mark i { background: var(--accent); border-radius: 1px; }
.header-mark i:nth-child(2) { opacity: .8; }
.header-mark i:nth-child(3) { opacity: .6; }
.header-mark i:nth-child(4) { opacity: .4; }
.main-nav { display: flex; align-items: center; gap: 24px; font-size: 13px; }
.main-nav a { position: relative; padding-block: 12px; }
.main-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 7px; height: 1px; background: currentColor; transition: right .2s; }
.main-nav a:hover::after { right: 0; }
.nav-cta { min-height: 44px; display: inline-flex; align-items: center; padding: 10px 18px !important; color: var(--accent-ink); background: var(--accent); border-radius: var(--radius); }
.menu-button { display: none; min-width: 44px; min-height: 44px; border: 1px solid var(--line); background: transparent; cursor: pointer; }

.hero { position: relative; overflow: hidden; min-height: 690px; padding: 58px 0 30px; }
.hero-grid { min-height: 500px; display: grid; grid-template-columns: minmax(0, 1.07fr) minmax(360px, .93fr); align-items: center; gap: clamp(34px, 5vw, 84px); }
.eyebrow, .section-label, .axis-label, .meta-label, .design-note { text-transform: uppercase; letter-spacing: .14em; font-size: 11px; font-weight: 700; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; color: var(--muted); }
.eyebrow::before { content: ""; width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); }
.hero h1 { max-width: 790px; font-size: clamp(52px, 6.3vw, 92px); font-weight: 550; line-height: .96; letter-spacing: -.065em; text-wrap: balance; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero-subtitle { max-width: 640px; margin-top: 25px; color: var(--muted); font-size: clamp(19px, 2vw, 27px); line-height: 1.36; letter-spacing: -.025em; text-wrap: balance; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; margin-top: 30px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 12px 20px; border: 1px solid transparent; color: var(--accent-ink); background: var(--accent); border-radius: var(--radius); font-size: 14px; transition: transform .2s, background .2s, color .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-secondary { color: var(--ink); background: transparent; border-color: var(--line); }
.earth-stage { position: relative; min-height: 470px; display: grid; place-items: center; }
.earth-frame { position: relative; z-index: 2; width: min(470px, 95%); aspect-ratio: 1; overflow: hidden; border-radius: 50%; background: #000; box-shadow: 0 28px 90px #0005; }
.earth-frame img { position: absolute; inset: -14%; width: 128%; height: 128%; max-width: none; object-fit: cover; }
.earth-frame video { position: absolute; width: 215.1%; height: 121%; max-width: none; left: -55%; top: -10.5%; object-fit: fill; opacity: 0; pointer-events: none; transition: opacity .4s; }
.earth-frame video.is-ready { opacity: 1; }
.orbit { position: absolute; z-index: 1; width: 104%; aspect-ratio: 1.4; border: 1px solid var(--line); border-radius: 50%; transform: rotate(-16deg); }
.orbit::before, .orbit::after { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.orbit::before { top: 17%; left: 12%; }
.orbit::after { right: 9%; bottom: 22%; }
.earth-caption { position: absolute; z-index: 3; left: 0; right: 0; bottom: 3px; color: var(--muted); font-size: 10px; text-align: center; }
.earth-caption a { text-decoration: underline; text-underline-offset: 3px; }
.design-note { position: absolute; z-index: 3; top: 3%; right: 0; max-width: 150px; color: var(--muted); text-align: right; line-height: 1.6; }
.hero-meta { display: grid; grid-template-columns: 1fr 1.45fr .7fr; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero-meta > div { padding: 19px 22px 19px 0; }
.hero-meta > div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.meta-label { display: block; margin-bottom: 5px; color: var(--muted); font-size: 9px; }
.hero-meta strong { font-family: var(--display-font); font-size: 14px; font-weight: 600; }
.joint-note { max-width: 900px; padding-top: 18px; color: var(--muted); font-size: 11px; line-height: 1.65; }

.section { padding: 104px 0; border-bottom: 1px solid var(--line); }
.section-alt { background: var(--surface); }
.section-label { display: block; margin-bottom: 20px; color: var(--accent); }
.section h2 { max-width: 900px; font-size: clamp(38px, 5vw, 68px); font-weight: 520; line-height: 1.02; letter-spacing: -.055em; text-wrap: balance; }
.section-intro { max-width: 870px; margin-top: 26px; color: var(--muted); font-size: 18px; line-height: 1.8; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, .7fr); gap: clamp(55px, 8vw, 120px); }
.prose { color: var(--muted); font-size: 17px; line-height: 1.85; }
.prose p + p { margin-top: 22px; }
.stats { display: grid; align-content: start; }
.stat { padding: 25px 0; border-top: 1px solid var(--line); }
.stat-number { display: block; color: var(--accent); font-family: var(--display-font); font-size: 60px; line-height: 1; letter-spacing: -.06em; }
.stat-text { display: block; margin-top: 9px; color: var(--muted); font-size: 12px; }
.axis-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 52px; }
.axis-card { min-height: 290px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); transition: transform .2s, border-color .2s; }
.axis-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.axis-index { float: right; color: var(--accent); font-family: var(--display-font); font-size: 30px; line-height: 1; }
.axis-label { color: var(--muted); font-size: 9px; }
.axis-card h3 { max-width: 420px; margin: 42px 0 17px; font-size: 28px; line-height: 1.08; letter-spacing: -.035em; }
.axis-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
.date-list { list-style: none; margin: 46px 0 0; padding: 0; }
.date-list li { display: grid; grid-template-columns: 190px 1fr 24px; align-items: center; gap: 28px; padding: 23px 0; border-top: 1px solid var(--line); }
.date-list time { color: var(--accent); font-weight: 700; }
.date-list h3 { font-size: 21px; font-weight: 550; }
.date-list p { color: var(--muted); font-size: 13px; }
.date-arrow { color: var(--accent); font-size: 24px; }
.cfp { color: var(--dark-ink); background: var(--dark); border-bottom: 0; }
.cfp-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; align-items: end; }
.cfp .section-label { color: color-mix(in srgb, var(--accent) 78%, white); }
.cfp h2 { color: var(--dark-ink); }
.cfp p { max-width: 760px; margin-top: 26px; color: #b8bbc3; font-size: 17px; line-height: 1.8; }
.cfp-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid #ffffff35; }
.cfp-list li { padding: 15px 0; border-bottom: 1px solid #ffffff35; color: #d7d8dd; font-size: 13px; }
.cfp .button { margin-top: 32px; }
.speaker-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.speaker { min-height: 260px; display: flex; flex-direction: column; justify-content: flex-end; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.speaker-orbit { width: 72px; height: 72px; margin-bottom: auto; border: 1px solid var(--line); border-radius: 50%; position: relative; }
.speaker-orbit::after { content: ""; position: absolute; width: 10px; height: 10px; top: 7px; right: 4px; border-radius: 50%; background: var(--accent); }
.speaker h3 { font-size: 20px; }
.speaker p { margin-top: 6px; color: var(--muted); font-size: 13px; }
.venue-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 20px; margin-top: 48px; }
.venue-card { min-height: 290px; padding: 32px; border-radius: var(--radius); background: var(--bg); border: 1px solid var(--line); }
.venue-card h3 { font-size: 27px; letter-spacing: -.035em; }
.venue-card p { max-width: 620px; margin-top: 20px; color: var(--muted); }
.venue-code { display: block; margin-bottom: 80px; color: var(--accent); font: 700 11px/1.2 var(--body-font); letter-spacing: .13em; }
.register { text-align: center; }
.register h2, .register .section-intro { margin-inline: auto; }
.register .button { margin-top: 30px; }
.site-footer { padding: 58px 0 24px; color: #f7f7f7; background: #090909; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 50px; }
.footer-brand { font-family: var(--display-font); font-size: 28px; letter-spacing: -.04em; }
.footer-grid p, .footer-grid li { color: #a5a5a5; font-size: 12px; line-height: 1.75; }
.footer-grid h3 { margin-bottom: 14px; font-family: var(--body-font); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 45px; padding-top: 20px; border-top: 1px solid #ffffff25; color: #888; font-size: 10px; }

/* 01 — RUNWAYML */
.theme-runway {
  --bg: #030303; --surface: #111214; --surface-2: #1a1a1a; --ink: #fff; --muted: #9da2aa;
  --line: #292b2e; --accent: #e9ecf2; --accent-ink: #050505; --dark: #e9ecf2; --dark-ink: #050505;
  --radius: 3px; --body-font: "Helvetica Neue", Arial, sans-serif; --display-font: "Helvetica Neue", Arial, sans-serif;
}
.theme-runway .site-header { background: #030303e8; }
.theme-runway .header-mark i { background: #fff; }
.theme-runway .hero { min-height: 760px; padding-top: 34px; }
.theme-runway .hero::after { content: "23 / EASP"; position: absolute; right: -18px; bottom: -58px; color: #ffffff08; font: 700 230px/1 var(--display-font); letter-spacing: -.08em; }
.theme-runway .hero h1 { font-size: clamp(58px, 7.4vw, 111px); font-weight: 400; line-height: .88; text-transform: uppercase; }
.theme-runway .hero h1 em { color: #fff; }
.theme-runway .hero-subtitle { max-width: 520px; font-size: 20px; }
.theme-runway .earth-stage { min-height: 550px; }
.theme-runway .earth-frame { width: min(570px, 112%); box-shadow: none; }
.theme-runway .orbit { width: 125%; border-color: #ffffff38; }
.theme-runway .design-note { top: 0; font-size: 9px; }
.theme-runway .button { font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: 10px; }
.theme-runway .section h2 { text-transform: uppercase; font-weight: 400; }
.theme-runway .axis-card, .theme-runway .speaker, .theme-runway .venue-card { background: #08090a; }
.theme-runway .cfp { color: #050505; background: #e9ecf2; }
.theme-runway .cfp p, .theme-runway .cfp-list li { color: #44484d; }
.theme-runway .cfp-list { border-color: #0003; }
.theme-runway .cfp-list li { border-color: #0003; }

/* 02 — COHERE */
.theme-cohere {
  --bg: #fff; --surface: #eeece7; --surface-2: #edfce9; --ink: #17171c; --muted: #616161;
  --line: #d9d9dd; --accent: #ff7759; --accent-ink: #17171c; --dark: #003c33; --dark-ink: #fff;
  --radius: 22px; --body-font: Arial, Helvetica, sans-serif; --display-font: "Courier New", ui-monospace, monospace;
}
.theme-cohere .site-header { background: #fffffff0; }
.theme-cohere .hero { padding-top: 42px; }
.theme-cohere .hero-grid { grid-template-columns: 1.12fr .88fr; }
.theme-cohere .hero h1 { font-weight: 400; line-height: .94; }
.theme-cohere .hero h1 em { display: inline-block; color: #003c33; background: #edfce9; border-radius: 999px; padding: .02em .15em; }
.theme-cohere .earth-stage { min-height: 520px; border-radius: 30px; background: #003c33; }
.theme-cohere .earth-frame { width: min(420px, 82%); }
.theme-cohere .orbit { width: 93%; border-color: #ffffff55; }
.theme-cohere .earth-caption, .theme-cohere .design-note { color: #d0e8e1; }
.theme-cohere .header-mark i:nth-child(1) { background: #ff7759; }
.theme-cohere .header-mark i:nth-child(2) { background: #003c33; opacity: 1; }
.theme-cohere .header-mark i:nth-child(3) { background: #071829; opacity: 1; }
.theme-cohere .header-mark i:nth-child(4) { background: #edfce9; opacity: 1; }
.theme-cohere .section h2, .theme-cohere .axis-card h3, .theme-cohere .date-list h3 { font-family: Arial, Helvetica, sans-serif; }
.theme-cohere .axis-card:nth-child(1) { background: #edfce9; }
.theme-cohere .axis-card:nth-child(2) { background: #f1f5ff; }
.theme-cohere .axis-card:nth-child(3) { background: #eeece7; }
.theme-cohere .axis-card:nth-child(4) { background: #fff4f0; }
.theme-cohere .axis-card { border-color: transparent; }
.theme-cohere .cfp .button { color: #17171c; background: #ffad9b; }

/* 03 — MASTERCARD */
.theme-mastercard {
  --bg: #f3f0ee; --surface: #ebe6e1; --surface-2: #e2dcd6; --ink: #141413; --muted: #625e59;
  --line: #cfc8c2; --accent: #cf4500; --accent-ink: #fff; --dark: #141413; --dark-ink: #fff;
  --radius: 38px; --body-font: "Avenir Next", Avenir, Arial, sans-serif; --display-font: "Avenir Next", Avenir, Arial, sans-serif;
}
.theme-mastercard .site-header { width: min(1180px, calc(100% - 32px)); margin: 15px auto 0; border: 0; border-radius: 999px; background: #fbf9f7e8; box-shadow: 0 8px 30px #3c25120d; }
.theme-mastercard .header-row { width: auto; padding-inline: 27px; }
.theme-mastercard .nav-cta, .theme-mastercard .button { border-radius: 999px; background: #141413; }
.theme-mastercard .button-secondary { color: #141413; background: transparent; border-color: #141413; }
.theme-mastercard .header-mark { display: flex; width: 48px; }
.theme-mastercard .header-mark i { width: 24px; height: 24px; border-radius: 50%; background: #cf4500; opacity: .85; }
.theme-mastercard .header-mark i:nth-child(2) { margin-left: -11px; background: #f37338; }
.theme-mastercard .header-mark i:nth-child(n+3) { display: none; }
.theme-mastercard .hero { padding-top: 30px; }
.theme-mastercard .hero-grid { min-height: 570px; padding: 50px; border-radius: 52px; background: #e9e3de; }
.theme-mastercard .hero h1 { font-weight: 520; }
.theme-mastercard .hero h1 em { color: #cf4500; }
.theme-mastercard .earth-frame { width: min(430px, 88%); }
.theme-mastercard .orbit { width: 116%; border: 2px solid #f37338; }
.theme-mastercard .orbit::before, .theme-mastercard .orbit::after { width: 18px; height: 18px; background: #f37338; border: 5px solid #f3f0ee; }
.theme-mastercard .design-note { padding: 10px 15px; border-radius: 999px; color: #fff; background: #141413; }
.theme-mastercard .hero-meta { margin-top: 20px; border: 0; border-radius: 999px; background: #fff; overflow: hidden; }
.theme-mastercard .hero-meta > div { padding: 20px 28px; }
.theme-mastercard .axis-card, .theme-mastercard .speaker, .theme-mastercard .venue-card { border: 0; background: #fff; }
.theme-mastercard .axis-card:nth-child(odd), .theme-mastercard .speaker:nth-child(odd) { border-radius: 120px 38px 38px 38px; }
.theme-mastercard .axis-card:nth-child(even), .theme-mastercard .speaker:nth-child(even) { border-radius: 38px 38px 120px 38px; }
.theme-mastercard .section h2 { font-weight: 520; }
.theme-mastercard .cfp { border-radius: 52px; margin: 20px; }
.theme-mastercard .cfp .button { color: #141413; background: #f37338; }

/* 04 — CLAUDE */
.theme-claude {
  --bg: #faf9f5; --surface: #f0eee6; --surface-2: #e4ebe5; --ink: #2d2b28; --muted: #68645f;
  --line: #d8d3ca; --accent: #cc785c; --accent-ink: #fff; --dark: #252523; --dark-ink: #faf9f5;
  --radius: 18px; --body-font: Arial, Helvetica, sans-serif; --display-font: Georgia, "Times New Roman", serif;
}
.theme-claude .site-header { background: #faf9f5e8; }
.theme-claude .header-mark { grid-template-columns: repeat(3, 1fr); transform: rotate(45deg); width: 29px; height: 29px; gap: 4px; }
.theme-claude .header-mark i { background: #cc785c; border-radius: 50%; }
.theme-claude .header-mark i:nth-child(4) { display: none; }
.theme-claude .hero::before { content: ""; position: absolute; width: 340px; height: 340px; top: -190px; left: 34%; border-radius: 50%; background: #d9ece7; }
.theme-claude .hero-copy { position: relative; z-index: 1; }
.theme-claude .hero h1 { font-weight: 700; line-height: .98; }
.theme-claude .hero h1 em { color: #cc785c; font-style: italic; }
.theme-claude .earth-stage { min-height: 540px; border-radius: 180px 20px 180px 20px; background: #252523; }
.theme-claude .earth-frame { width: min(420px, 83%); box-shadow: 0 35px 90px #06050466; }
.theme-claude .orbit { width: 90%; border-color: #d4ede2; }
.theme-claude .earth-caption, .theme-claude .design-note { color: #b7c7c0; }
.theme-claude .button { border-radius: 10px; }
.theme-claude .button-secondary { color: #2d2b28; }
.theme-claude .section h2 { font-weight: 700; }
.theme-claude .axis-card { background: #faf9f5; }
.theme-claude .axis-card:nth-child(2), .theme-claude .axis-card:nth-child(3) { background: #e4ebe5; }
.theme-claude .cfp { background: #2f4a45; }
.theme-claude .cfp .button { background: #e49578; }
.theme-claude .stat-number, .theme-claude .section-label { color: #b45f45; }

/* 05 — LINEAR */
.theme-linear {
  --bg: #010102; --surface: #08080b; --surface-2: #111116; --ink: #f7f7f8; --muted: #9393a0;
  --line: #24242b; --accent: #8b87ff; --accent-ink: #07070a; --dark: #111118; --dark-ink: #f7f7f8;
  --radius: 10px; --body-font: Inter, "Helvetica Neue", Arial, sans-serif; --display-font: Inter, "Helvetica Neue", Arial, sans-serif;
}
.theme-linear { background-image: linear-gradient(#111116aa 1px, transparent 1px), linear-gradient(90deg, #111116aa 1px, transparent 1px); background-size: 64px 64px; }
.theme-linear .site-header { background: #010102d9; }
.theme-linear .hero { min-height: 760px; background: radial-gradient(circle at 70% 43%, #605cff24 0, transparent 34%); }
.theme-linear .hero-grid { min-height: 570px; }
.theme-linear .hero h1 { font-size: clamp(55px, 6.8vw, 100px); font-weight: 480; }
.theme-linear .hero h1 em { color: #aaa7ff; }
.theme-linear .earth-stage { min-height: 540px; }
.theme-linear .earth-frame { width: min(440px, 86%); border: 1px solid #8380ff66; box-shadow: 0 0 100px #625eff29; }
.theme-linear .orbit { width: 110%; border-color: #8b87ff55; box-shadow: inset 0 0 70px #7874ff0d; }
.theme-linear .axis-card, .theme-linear .speaker, .theme-linear .venue-card { background: #08080bcc; backdrop-filter: blur(18px); }
.theme-linear .axis-card:hover { box-shadow: 0 18px 70px #4e4aff12; }
.theme-linear .section-alt { background: #050507e8; }
.theme-linear .cfp { background: linear-gradient(135deg, #101018, #17142b); border-top: 1px solid #6e69ff44; }
.theme-linear .cfp .button { background: #9f9cff; }
.theme-linear .header-mark i { background: #8b87ff; border-radius: 50%; }

/* 06 — APPLE */
.theme-apple {
  --bg: #fff; --surface: #f5f5f7; --surface-2: #fafafc; --ink: #1d1d1f; --muted: #6e6e73;
  --line: #e0e0e0; --accent: #0066cc; --accent-ink: #fff; --dark: #000; --dark-ink: #fff;
  --radius: 999px; --body-font: -apple-system, BlinkMacSystemFont, "SF Pro Text", Arial, sans-serif; --display-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", Arial, sans-serif;
}
.theme-apple .sample-switcher { background: #1d1d1f; }
.theme-apple .site-header { background: #ffffffd9; }
.theme-apple .header-mark { display: block; width: 26px; height: 26px; border: 2px solid #1d1d1f; border-radius: 50%; position: relative; }
.theme-apple .header-mark::after { content: ""; position: absolute; width: 8px; height: 8px; right: -3px; top: -3px; border-radius: 50%; background: #0066cc; }
.theme-apple .header-mark i { display: none; }
.theme-apple .hero { min-height: 880px; padding-top: 66px; color: #fff; background: #000; text-align: center; }
.theme-apple .hero-grid { display: flex; flex-direction: column; min-height: 700px; gap: 20px; }
.theme-apple .hero-copy { position: relative; z-index: 5; max-width: 980px; margin-inline: auto; }
.theme-apple .eyebrow { justify-content: center; color: #a1a1a6; }
.theme-apple .hero h1 { max-width: 1050px; font-size: clamp(55px, 7vw, 104px); font-weight: 650; line-height: .94; }
.theme-apple .hero h1 em { color: #2997ff; }
.theme-apple .hero-subtitle { max-width: 780px; margin-inline: auto; color: #c8c8cc; }
.theme-apple .hero-actions { justify-content: center; }
.theme-apple .button-secondary { color: #2997ff; border-color: #2997ff; }
.theme-apple .earth-stage { width: min(650px, 90vw); min-height: 390px; margin-top: -15px; }
.theme-apple .earth-frame { width: min(570px, 86%); box-shadow: 0 18px 70px #3198ff35; }
.theme-apple .orbit { display: none; }
.theme-apple .design-note { top: 5px; color: #86868b; }
.theme-apple .earth-caption { color: #86868b; }
.theme-apple .hero-meta { color: #fff; border-color: #333; }
.theme-apple .hero-meta > div + div { border-color: #333; }
.theme-apple .meta-label, .theme-apple .joint-note { color: #8e8e93; }
.theme-apple .section { padding-block: 115px; }
.theme-apple .section h2 { font-weight: 650; letter-spacing: -.045em; }
.theme-apple .axis-grid { gap: 12px; }
.theme-apple .axis-card { min-height: 340px; border: 0; border-radius: 0; background: #fff; }
.theme-apple .axis-card:nth-child(1), .theme-apple .axis-card:nth-child(4) { color: #fff; background: #272729; }
.theme-apple .axis-card:nth-child(1) p, .theme-apple .axis-card:nth-child(4) p { color: #c8c8cc; }
.theme-apple .speaker, .theme-apple .venue-card { border: 0; border-radius: 18px; background: #fff; }
.theme-apple .cfp { background: #000; }
.theme-apple .cfp .button { background: #0066cc; }

/* Comparison landing */
.gallery-page { min-height: 100vh; color: #f5f5f7; background: #09090b; }
.gallery-page .gallery-wrap { width: min(1240px, calc(100% - 64px)); margin: auto; padding: 70px 0; }
.gallery-kicker { color: #8f8f99; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; }
.gallery-page h1 { max-width: 900px; margin-top: 15px; font: 520 clamp(48px, 7vw, 92px)/.98 -apple-system, BlinkMacSystemFont, sans-serif; letter-spacing: -.06em; }
.gallery-page .gallery-intro { max-width: 700px; margin-top: 25px; color: #a4a4ad; font-size: 18px; }
.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 55px; }
.gallery-card { min-height: 270px; display: flex; flex-direction: column; padding: 28px; overflow: hidden; border: 1px solid #2b2b31; border-radius: 18px; background: #111114; transition: transform .2s, border-color .2s; }
.gallery-card:hover { transform: translateY(-4px); border-color: #767680; }
.gallery-card .swatches { display: flex; gap: 8px; margin-bottom: auto; }
.gallery-card .swatches i { width: 33px; height: 33px; border: 1px solid #ffffff22; border-radius: 50%; }
.gallery-card small { margin-top: 34px; color: #888891; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.gallery-card h2 { margin-top: 8px; font-size: 34px; font-weight: 520; letter-spacing: -.04em; }
.gallery-card p { max-width: 500px; margin-top: 9px; color: #a4a4ad; font-size: 14px; }
.gallery-card .open { margin-top: 18px; color: #fff; font-size: 13px; }

@media (max-width: 1050px) {
  .main-nav { gap: 15px; }
  .main-nav a:nth-child(2), .main-nav a:nth-child(5), .main-nav a:nth-child(6) { display: none; }
  .hero-grid { grid-template-columns: 1fr .85fr; gap: 25px; }
  .hero h1 { font-size: clamp(50px, 6.4vw, 76px); }
  .earth-stage { min-height: 420px; }
  .about-grid { gap: 55px; }
  .theme-mastercard .hero-grid { padding: 36px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 145px; }
  .wrap { width: min(100% - 34px, var(--max)); }
  .sample-switcher { display: block; padding: 7px 10px; }
  .sample-switcher > span { display: block; margin: 0 0 5px 7px; font-size: 9px; }
  .sample-nav { justify-content: flex-start; }
  .sample-nav a { padding: 7px 10px; font-size: 10px; }
  .header-row { min-height: 70px; }
  .menu-button { display: block; }
  .main-nav { display: none; position: absolute; top: 70px; left: -17px; right: -17px; padding: 22px 20px; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 8px; }
  .main-nav.is-open { display: flex; }
  .main-nav a:nth-child(n) { display: block; }
  .hero { min-height: auto; padding-top: 42px; }
  .hero-grid { display: flex; flex-direction: column; align-items: stretch; min-height: auto; }
  .hero h1, .theme-runway .hero h1, .theme-apple .hero h1 { font-size: clamp(44px, 12.7vw, 72px); }
  .hero-subtitle { font-size: 20px; }
  .earth-stage { width: 100%; min-height: 380px; }
  .earth-frame { width: min(390px, 82vw); }
  .design-note { right: 5px; }
  .hero-meta { grid-template-columns: 1fr; margin-top: 12px; }
  .hero-meta > div, .theme-mastercard .hero-meta > div { padding: 14px 0; }
  .hero-meta > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .section { padding: 72px 0; }
  .section h2 { font-size: clamp(37px, 10vw, 58px); }
  .about-grid, .cfp-grid, .venue-grid { grid-template-columns: 1fr; gap: 42px; }
  .axis-grid { grid-template-columns: 1fr; }
  .axis-card { min-height: auto; }
  .date-list li { grid-template-columns: 1fr 18px; gap: 10px; }
  .date-list time { grid-column: 1 / -1; }
  .speaker-grid { grid-template-columns: 1fr; }
  .speaker { min-height: 210px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .theme-mastercard .site-header { width: calc(100% - 20px); }
  .theme-mastercard .header-row { width: auto; padding-inline: 19px; }
  .theme-mastercard .hero-grid { padding: 31px 21px; border-radius: 32px; }
  .theme-mastercard .hero-meta { border-radius: 24px; padding: 8px 20px; }
  .theme-mastercard .cfp { margin: 10px; border-radius: 32px; }
  .theme-cohere .earth-stage { min-height: 400px; }
  .theme-claude .earth-stage { min-height: 420px; border-radius: 100px 18px 100px 18px; }
  .theme-apple .hero { min-height: auto; padding-top: 52px; }
  .theme-apple .hero-grid { min-height: auto; }
  .theme-apple .earth-stage { min-height: 340px; }
  .theme-apple .design-note { display: none; }
  .theme-apple .axis-card { min-height: auto; }
  .gallery-page .gallery-wrap { width: calc(100% - 34px); padding-top: 45px; }
  .gallery-grid { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .hero-actions { align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .earth-stage { min-height: 335px; }
  .earth-frame { width: 300px; }
  .orbit { width: 102%; }
  .stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}

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

/* EASP 2027 — no-Earth redesigns. Conference copy is inherited unchanged. */
.visual-stage {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  isolation: isolate;
}
.visual-stage::before,
.visual-stage::after { content: ""; position: absolute; pointer-events: none; }

/* 02 COHERE — modular research field */
.theme-cohere {
  --surface: #f4f4f0;
  --line: #cfd4cf;
}
.theme-cohere .site-header { border-color: #dfe2de; }
.theme-cohere .header-row { min-height: 76px; }
.theme-cohere .hero { min-height: 810px; padding: 46px 0 34px; background: #fff; }
.theme-cohere .hero-grid { min-height: 590px; grid-template-columns: minmax(0, .94fr) minmax(500px, 1.06fr); gap: 55px; }
.theme-cohere .hero h1 { max-width: 680px; font: 400 clamp(55px, 6vw, 92px)/.92 "Courier New", monospace; letter-spacing: -.075em; }
.theme-cohere .hero h1 em { display: block; margin-top: .08em; padding: 0; color: #003c33; background: none; border-radius: 0; }
.theme-cohere .hero-subtitle { max-width: 560px; margin-top: 32px; color: #4e544f; font-size: 22px; }
.theme-cohere .button { border-radius: 2px; }
.theme-cohere .button-secondary { border-color: #9ea7a0; }
.theme-cohere .visual-stage { min-height: 590px; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 14px; padding: 14px; border: 1px solid #cad1cb; border-radius: 0; background: #f8f8f5; }
.theme-cohere .cohere-grid { grid-area: 1 / 1 / 3 / 2; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); gap: 1px; background: #91a49b; }
.theme-cohere .cohere-grid i { position: relative; background: #003c33; }
.theme-cohere .cohere-grid i:nth-child(2), .theme-cohere .cohere-grid i:nth-child(6), .theme-cohere .cohere-grid i:nth-child(8) { background: #edfce9; }
.theme-cohere .cohere-grid i:nth-child(4) { background: #ff7759; }
.theme-cohere .cohere-grid i:nth-child(7) { background: #071829; }
.theme-cohere .cohere-grid i::after { content: ""; position: absolute; inset: 18%; border: 1px solid #ffffff50; border-radius: 50%; }
.theme-cohere .cohere-core { grid-area: 1 / 2 / 2 / 3; position: relative; overflow: hidden; background: #071829; }
.theme-cohere .cohere-core span { position: absolute; border-radius: 50%; border: 1px solid #ffffff99; }
.theme-cohere .cohere-core span:nth-child(1) { width: 240px; height: 240px; top: 18px; left: 22px; }
.theme-cohere .cohere-core span:nth-child(2) { width: 160px; height: 160px; top: 58px; left: 62px; background: #f1f5ff22; }
.theme-cohere .cohere-core span:nth-child(3) { width: 44px; height: 44px; top: 116px; left: 120px; background: #ff7759; border: 0; }
.theme-cohere .cohere-signal { grid-area: 2 / 2 / 3 / 3; background: linear-gradient(135deg, #edfce9 0 49.7%, #ff7759 50% 66%, #f1f5ff 66.3%); }
.theme-cohere .hero-meta { background: #fff; }
.theme-cohere .section { padding: 118px 0; }
.theme-cohere #about .about-grid { grid-template-columns: .9fr 1.1fr; }
.theme-cohere #about .stats { grid-template-columns: repeat(3, 1fr); gap: 1px; background: #d8ddd8; }
.theme-cohere #about .stat { min-height: 190px; padding: 25px; background: #fff; }
.theme-cohere .stat-number { font-family: "Courier New", monospace; }
.theme-cohere .axis-grid { grid-template-columns: repeat(4, 1fr); gap: 1px; background: #d5dad6; }
.theme-cohere .axis-card { min-height: 420px; border: 0; border-radius: 0; }
.theme-cohere .axis-card:nth-child(1) { background: #003c33; color: #fff; }
.theme-cohere .axis-card:nth-child(1) p, .theme-cohere .axis-card:nth-child(1) .axis-label { color: #cde2dc; }
.theme-cohere .axis-card:nth-child(2) { background: #edfce9; }
.theme-cohere .axis-card:nth-child(3) { background: #f1f5ff; }
.theme-cohere .axis-card:nth-child(4) { background: #fff2ed; }
.theme-cohere .date-list li { grid-template-columns: 160px 1fr 40px; padding: 30px 18px; }
.theme-cohere .cfp { margin: 18px; background: #071829; }
.theme-cohere .speaker { border-radius: 0; background: #fff; }
.theme-cohere .venue-card { border-radius: 0; }

/* 03 MASTERCARD — connected transition orbits */
.theme-mastercard .hero { min-height: 930px; padding: 28px 0 45px; }
.theme-mastercard .hero-grid { min-height: 650px; display: grid; grid-template-columns: 1fr; padding: 62px 60px 28px; overflow: hidden; text-align: center; background: #e8e2dc; }
.theme-mastercard .hero-copy { position: relative; z-index: 5; max-width: 980px; margin: 0 auto; }
.theme-mastercard .eyebrow, .theme-mastercard .hero-actions { justify-content: center; }
.theme-mastercard .hero h1 { max-width: 1000px; margin-inline: auto; font-size: clamp(58px, 7vw, 104px); line-height: .93; }
.theme-mastercard .hero h1 em { color: #cf4500; }
.theme-mastercard .hero-subtitle { max-width: 720px; margin-inline: auto; }
.theme-mastercard .visual-stage { width: min(810px, 100%); min-height: 390px; margin: -5px auto 0; }
.theme-mastercard .mc-disc { position: absolute; z-index: 2; width: 290px; height: 290px; top: 52px; border-radius: 50%; mix-blend-mode: multiply; }
.theme-mastercard .mc-disc-a { left: calc(50% - 260px); background: #cf4500; }
.theme-mastercard .mc-disc-b { right: calc(50% - 260px); background: #f0a12d; }
.theme-mastercard .mc-disc::after { content: ""; position: absolute; inset: 18%; border: 1px solid #fff9; border-radius: inherit; }
.theme-mastercard .mc-orbit { position: absolute; inset: 28px 60px 55px; border: 2px solid #cf4500; border-radius: 50%; transform: rotate(-8deg); }
.theme-mastercard .mc-orbit-b { inset: 70px 125px 15px; border-color: #141413; transform: rotate(15deg); opacity: .55; }
.theme-mastercard .mc-node { position: absolute; z-index: 4; width: 24px; height: 24px; border: 6px solid #f3f0ee; border-radius: 50%; background: #141413; }
.theme-mastercard .mc-node-a { left: 88px; top: 95px; }
.theme-mastercard .mc-node-b { right: 101px; bottom: 68px; background: #cf4500; }
.theme-mastercard .hero-meta { margin-top: 18px; }
.theme-mastercard .section { padding: 110px 0; }
.theme-mastercard #about { padding-top: 130px; }
.theme-mastercard #about .about-grid { grid-template-columns: 1fr; }
.theme-mastercard #about .stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
.theme-mastercard #about .stat { padding: 35px; border: 0; border-radius: 999px; background: #fff; text-align: center; }
.theme-mastercard .axis-grid { gap: 22px; }
.theme-mastercard .axis-card { min-height: 330px; padding: 38px; }
.theme-mastercard .axis-card:nth-child(1), .theme-mastercard .axis-card:nth-child(4) { border-radius: 160px 45px 45px 45px; }
.theme-mastercard .axis-card:nth-child(2), .theme-mastercard .axis-card:nth-child(3) { border-radius: 45px 45px 160px 45px; }
.theme-mastercard .date-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.theme-mastercard .date-list li { display: flex; min-height: 270px; padding: 28px; border: 0; border-radius: 35px; background: #fff; flex-direction: column; align-items: flex-start; }
.theme-mastercard .date-list .date-arrow { margin-top: auto; }
.theme-mastercard .speaker { min-height: 330px; }
.theme-mastercard .venue-grid { grid-template-columns: repeat(2, 1fr); }
.theme-mastercard .venue-card { border: 0; }

/* 04 CLAUDE — humanist editorial landscape */
.theme-claude .hero { min-height: 830px; padding-top: 58px; background: #f7f5ef; }
.theme-claude .hero::before { width: 560px; height: 560px; top: -370px; left: -150px; background: #dceee8; }
.theme-claude .hero-grid { min-height: 610px; grid-template-columns: minmax(0, 1.05fr) minmax(440px, .95fr); }
.theme-claude .hero h1 { font-size: clamp(61px, 7vw, 106px); line-height: .9; }
.theme-claude .hero h1 em { display: block; margin-top: .08em; }
.theme-claude .hero-subtitle { max-width: 600px; font-family: Georgia, serif; font-size: 23px; }
.theme-claude .visual-stage { min-height: 590px; overflow: visible; }
.theme-claude .cl-sun { position: absolute; z-index: 1; width: 260px; height: 260px; top: 30px; right: 50px; border-radius: 50%; background: #cc785c; }
.theme-claude .cl-field { position: absolute; z-index: 2; left: 0; right: 0; bottom: 20px; height: 360px; border-radius: 58% 42% 8% 8% / 42% 55% 8% 8%; transform: rotate(-4deg); }
.theme-claude .cl-field-a { background: #2f4a45; }
.theme-claude .cl-field-b { z-index: 3; left: 70px; right: -40px; bottom: -10px; height: 250px; background: #dae6de; transform: rotate(5deg); }
.theme-claude .cl-seed { position: absolute; z-index: 4; width: 45px; height: 105px; border-radius: 70% 30% 70% 30%; background: #252523; transform: rotate(33deg); }
.theme-claude .cl-seed-a { left: 100px; bottom: 115px; }
.theme-claude .cl-seed-b { right: 85px; bottom: 80px; width: 28px; height: 70px; background: #cc785c; transform: rotate(-28deg); }
.theme-claude .hero-meta { margin-top: 8px; }
.theme-claude .section { padding: 120px 0; }
.theme-claude #about .about-grid { grid-template-columns: .8fr 1.2fr; }
.theme-claude #about .stats { grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: end; }
.theme-claude #about .stat { min-height: 230px; padding: 28px; border: 1px solid #d8d3ca; border-radius: 50% 50% 12px 12px; display: flex; flex-direction: column; justify-content: flex-end; text-align: center; }
.theme-claude .axis-grid { grid-template-columns: 1fr; gap: 0; }
.theme-claude .axis-card { min-height: 230px; display: grid; grid-template-columns: 100px 1fr 1.3fr; gap: 25px; align-items: center; border: 0; border-radius: 0; border-top: 1px solid #c8c4ba; background: transparent !important; }
.theme-claude .axis-card .axis-index { float: none; grid-column: 1; grid-row: 1; }
.theme-claude .axis-card .axis-label { grid-column: 1; grid-row: 2; }
.theme-claude .axis-card h3 { grid-column: 2; grid-row: 1 / 3; margin: 0; font-size: 34px; }
.theme-claude .axis-card p { grid-column: 3; grid-row: 1 / 3; font-size: 16px; }
.theme-claude .cfp { margin: 0 20px; border-radius: 28px; background: #2f4a45; }
.theme-claude .date-list li { padding: 30px 0; }
.theme-claude .speaker { min-height: 330px; border-radius: 180px 180px 18px 18px; }

/* 05 LINEAR — connected policy system */
.theme-linear .hero { min-height: 830px; padding-top: 55px; background: radial-gradient(circle at 72% 40%, #5f59ff21, transparent 36%), #010102; }
.theme-linear .hero-grid { min-height: 615px; grid-template-columns: minmax(0, .95fr) minmax(500px, 1.05fr); }
.theme-linear .hero h1 { font-size: clamp(58px, 6.7vw, 102px); line-height: .9; }
.theme-linear .hero h1 em { display: block; }
.theme-linear .visual-stage { min-height: 610px; border: 1px solid #262631; border-radius: 14px; background: linear-gradient(#12121888 1px, transparent 1px), linear-gradient(90deg, #12121888 1px, transparent 1px), #050508; background-size: 46px 46px; }
.theme-linear .visual-stage::before { inset: 12%; border: 1px solid #8581ff32; border-radius: 50%; box-shadow: 0 0 90px #7772ff18 inset; }
.theme-linear .visual-linear svg { position: absolute; inset: 3%; width: 94%; height: 94%; }
.theme-linear .network-lines { stroke: #8c88ff; stroke-width: 1.1; opacity: .42; }
.theme-linear .network-nodes circle { fill: #8b87ff; stroke: #d5d4ff; stroke-width: 1; }
.theme-linear .network-nodes .network-core { stroke-width: 0; opacity: .74; }
.theme-linear .linear-scan { position: absolute; left: 8%; right: 8%; top: 50%; height: 1px; background: linear-gradient(90deg, transparent, #d8d7ff, transparent); box-shadow: 0 0 24px #8b87ff; animation: linearScan 6s ease-in-out infinite alternate; }
@keyframes linearScan { from { transform: translateY(-170px); opacity: .25; } to { transform: translateY(170px); opacity: .9; } }
.theme-linear .section { padding: 115px 0; }
.theme-linear #about { background: #050507e8; }
.theme-linear #about .about-grid { grid-template-columns: 1.1fr .9fr; }
.theme-linear #about .stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
.theme-linear #about .stat { min-height: 210px; padding: 22px; border: 1px solid #2b2b35; border-radius: 10px; background: #0a0a0f; }
.theme-linear .axis-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; }
.theme-linear .axis-card { min-height: 400px; }
.theme-linear .axis-card:nth-child(1), .theme-linear .axis-card:nth-child(4) { background: linear-gradient(155deg, #121125, #08080b); }
.theme-linear .date-list li { grid-template-columns: 180px 1fr 32px; padding: 29px 18px; background: #050508cc; }
.theme-linear .speaker { min-height: 320px; background: radial-gradient(circle at 30% 25%, #6c66ff1f, transparent 45%), #08080b; }
.theme-linear .venue-card { min-height: 350px; }
.theme-linear .cfp { background: linear-gradient(135deg, #111019, #1b1736); }

/* 06 APPLE — field of light */
.theme-apple .hero { min-height: 1020px; padding-top: 74px; background: #000; }
.theme-apple .hero-grid { min-height: 820px; gap: 10px; }
.theme-apple .hero h1 { max-width: 1120px; font-size: clamp(62px, 7.8vw, 116px); }
.theme-apple .hero h1 em { display: block; margin-top: .05em; }
.theme-apple .hero-subtitle { margin-top: 28px; }
.theme-apple .visual-stage { width: min(1040px, 94vw); min-height: 440px; margin-top: 5px; overflow: visible; }
.theme-apple .apple-field { position: absolute; inset: 15px 4% 20px; filter: saturate(1.12); }
.theme-apple .apple-field span { position: absolute; left: 50%; top: 48%; width: 520px; height: 180px; border-radius: 50%; transform-origin: center; filter: blur(1px); }
.theme-apple .apple-field span:nth-child(1) { background: radial-gradient(ellipse, #2b8cffcc 0, #1759eb66 42%, transparent 72%); transform: translate(-72%, -50%) rotate(-16deg); box-shadow: 0 0 90px #1873ff66; }
.theme-apple .apple-field span:nth-child(2) { background: radial-gradient(ellipse, #b950ffbb 0, #6f2cff55 45%, transparent 72%); transform: translate(-28%, -34%) rotate(18deg); box-shadow: 0 0 90px #853dff55; }
.theme-apple .apple-field span:nth-child(3) { width: 430px; height: 130px; background: radial-gradient(ellipse, #72e6c4a8 0, #208e9d44 47%, transparent 72%); transform: translate(-48%, 28%) rotate(-3deg); box-shadow: 0 0 75px #46c6c744; }
.theme-apple .apple-horizon { position: absolute; left: 3%; right: 3%; bottom: 55px; height: 1px; background: linear-gradient(90deg, transparent, #fff8, transparent); box-shadow: 0 -34px 100px #3d86ff44; }
.theme-apple .section { padding: 130px 0; }
.theme-apple #about { background: #fff; }
.theme-apple #about .about-grid { grid-template-columns: 1fr; }
.theme-apple #about .stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
.theme-apple #about .stat { min-height: 230px; padding: 32px; border: 0; border-radius: 18px; background: #f5f5f7; }
.theme-apple .axis-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
.theme-apple .axis-card { min-height: 430px; display: flex; flex-direction: column; padding: 42px; border-radius: 22px; }
.theme-apple .axis-card h3 { margin-top: auto; font-size: 38px; }
.theme-apple .date-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.theme-apple .date-list li { display: grid; grid-template-columns: 1fr 22px; min-height: 210px; padding: 32px; border: 0; border-radius: 18px; background: #f5f5f7; }
.theme-apple .date-list time { grid-column: 1 / -1; }
.theme-apple .cfp { margin: 12px; border-radius: 24px; }
.theme-apple .speaker { min-height: 360px; }
.theme-apple .venue-card { min-height: 360px; }

/* New comparison page */
.gallery-page { background: #f5f5f7; color: #1d1d1f; }
.gallery-page .gallery-kicker { color: #0066cc; }
.gallery-page .gallery-intro { color: #6e6e73; }
.gallery-grid { grid-template-columns: repeat(5, 1fr); gap: 12px; }
.gallery-card { min-height: 420px; padding: 24px; border: 0; border-radius: 18px; background: #fff; }
.gallery-card:nth-child(4) { color: #fff; background: #111116; }
.gallery-card small, .gallery-card p { color: #77777f; }
.gallery-card:nth-child(4) small, .gallery-card:nth-child(4) p { color: #aaaab4; }
.gallery-card h2 { font-size: 27px; }
.gallery-card .open { color: #0066cc; }

@media (max-width: 1100px) {
  .theme-cohere .hero-grid,
  .theme-claude .hero-grid,
  .theme-linear .hero-grid { grid-template-columns: 1fr .82fr; gap: 26px; }
  .theme-cohere .axis-grid,
  .theme-linear .axis-grid { grid-template-columns: repeat(2, 1fr); }
  .theme-mastercard .date-list { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  .visual-stage { min-height: 380px; width: 100%; }
  .header-row { position: relative; }
  .theme-cohere .about-grid,
  .theme-cohere .cfp-grid,
  .theme-cohere .venue-grid,
  .theme-mastercard .about-grid,
  .theme-mastercard .cfp-grid,
  .theme-mastercard .venue-grid,
  .theme-claude .about-grid,
  .theme-claude .cfp-grid,
  .theme-claude .venue-grid,
  .theme-linear .about-grid,
  .theme-linear .cfp-grid,
  .theme-linear .venue-grid,
  .theme-apple .about-grid,
  .theme-apple .cfp-grid,
  .theme-apple .venue-grid { grid-template-columns: 1fr; }
  .theme-cohere #about .about-grid,
  .theme-mastercard #about .about-grid,
  .theme-claude #about .about-grid,
  .theme-linear #about .about-grid,
  .theme-apple #about .about-grid { grid-template-columns: 1fr; }
  .theme-cohere .hero,
  .theme-mastercard .hero,
  .theme-claude .hero,
  .theme-linear .hero,
  .theme-apple .hero { min-height: auto; }
  .theme-cohere .hero-grid,
  .theme-claude .hero-grid,
  .theme-linear .hero-grid { display: flex; min-height: auto; }
  .theme-cohere .hero h1,
  .theme-mastercard .hero h1,
  .theme-claude .hero h1,
  .theme-linear .hero h1,
  .theme-apple .hero h1 { font-size: clamp(44px, 12vw, 66px); }
  .theme-cohere .visual-stage { min-height: 410px; grid-template-columns: 1fr 1fr; }
  .theme-cohere #about .stats,
  .theme-mastercard #about .stats,
  .theme-claude #about .stats,
  .theme-linear #about .stats,
  .theme-apple #about .stats { grid-template-columns: 1fr; }
  .theme-cohere .axis-grid,
  .theme-linear .axis-grid,
  .theme-apple .axis-grid { grid-template-columns: 1fr; }
  .theme-cohere .axis-card,
  .theme-linear .axis-card,
  .theme-apple .axis-card { min-height: 300px; }
  .theme-mastercard .hero-grid { padding: 34px 21px 20px; }
  .theme-mastercard .visual-stage { min-height: 350px; margin-top: 20px; }
  .theme-mastercard .mc-disc { width: 190px; height: 190px; top: 80px; }
  .theme-mastercard .mc-disc-a { left: calc(50% - 175px); }
  .theme-mastercard .mc-disc-b { right: calc(50% - 175px); }
  .theme-mastercard .mc-orbit { inset: 55px 4px 48px; }
  .theme-mastercard .mc-orbit-b { inset: 90px 35px 22px; }
  .theme-mastercard .date-list,
  .theme-apple .date-list { grid-template-columns: 1fr; }
  .theme-claude .visual-stage { min-height: 450px; }
  .theme-claude .cl-sun { width: 200px; height: 200px; right: 18px; }
  .theme-claude .axis-card { min-height: auto; display: block; padding: 28px 0; }
  .theme-claude .axis-card h3 { margin: 24px 0 14px; font-size: 30px; }
  .theme-linear .visual-stage { min-height: 410px; }
  .theme-apple .hero-grid { min-height: auto; }
  .theme-apple .visual-stage { min-height: 330px; width: 100%; }
  .theme-apple .apple-field span { width: 320px; height: 115px; }
  .theme-apple .apple-field span:nth-child(3) { width: 280px; height: 90px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-card { min-height: 270px; }
}

@media (prefers-reduced-motion: reduce) {
  .theme-linear .linear-scan { animation: none; }
}

/* Three retained candidates */
.gallery-grid { grid-template-columns: repeat(3, 1fr); }
.gallery-card { min-height: 330px; }
@media (max-width: 760px) { .gallery-grid { grid-template-columns: 1fr; } }

/* EASP × FISS 2027：Claude 風格首頁的補充樣式。
   底稿：homepage-samples-20260920-no-earth/04-claude.html（styles.css、redesign.css 原樣沿用）。
   對比調整：小字與按鈕的陶土橘改用 #a3553c（白字 5.35:1、米白底 5.08:1、淺底 4.61:1）；
   徵稿區按鈕改深色字（6.49:1）。大標斜體維持 #cc785c（大字 3.01:1）。 */
.theme-claude .button:not(.button-secondary), .theme-claude .nav-cta, .theme-claude .skip-link { background: #a3553c; color: #fff; }
.theme-claude .section-label { color: #a3553c; }
.theme-claude .cfp .button { background: #e49578; color: #252523; }
.theme-claude a:focus-visible, .theme-claude button:focus-visible { outline-color: #a3553c; }

/* 標誌 */
.brand img { width: 81px; height: 33px; object-fit: contain; background: #fff; padding: 4px; border-radius: 6px; }
.theme-claude .brand-lockup { font-weight: 400; }

/* 主題區副標 */
.theme-sub { max-width: 870px; margin-top: 18px; color: var(--muted); font-family: var(--display-font); font-size: 22px; line-height: 1.4; }

/* 講者 4 位、場地 3 張卡 */
.speaker-grid { grid-template-columns: repeat(4, 1fr); }
.avatar { width: 72px; height: 72px; margin-bottom: auto; display: grid; place-items: center; border-radius: 50%; background: #e4ebe5; color: #a3553c; font: 34px/1 var(--display-font); }
.venue-grid { grid-template-columns: repeat(3, 1fr); }
.venue-card { min-height: 240px; }
.theme-claude .venue-card h3 { font-weight: 700; }

/* 頁尾 */
.footer-grid a, .footer-bottom a { text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom p { margin: 0; }

/* 主視覺 */
.theme-claude .visual-stage.kv { min-height: 0; display: flex; align-items: center; justify-content: center; }
.kv svg { width: 100%; height: auto; max-width: 560px; }
.kv-label { font: 700 11px/1.2 Arial, Helvetica, sans-serif; letter-spacing: .14em; fill: #5d5953; }

@media (max-width: 1050px) {
  .speaker-grid { grid-template-columns: repeat(2, 1fr); }
  .venue-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .speaker-grid, .venue-grid { grid-template-columns: 1fr; }
  .theme-sub { font-size: 19px; }
  .theme-claude .visual-stage.kv { min-height: 0; margin-top: 8px; }
}

/* 版面調整（內容比底稿多：About 三段、講者四位） */
.theme-claude .cfp .section-label { color: #f0b49c; }
.theme-claude #about .about-grid { grid-template-columns: 1.1fr .9fr; }
.theme-claude .speaker .avatar { align-self: center; margin-top: 14px; }
@media (max-width: 760px) {
  .theme-claude #about .about-grid { grid-template-columns: 1fr; }
  .theme-claude #about .stats { grid-template-columns: repeat(2, 1fr); gap: 8px; } /* 2026-10-13 拿掉第一格，剩兩格 */
  .theme-claude #about .stat { min-height: 150px; padding: 14px 6px; }
  .theme-claude #about .stat-number { font-size: 36px; }
  .speaker-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .theme-claude .speaker { min-height: 230px; padding: 16px; border-radius: 110px 110px 14px 14px; }
  .theme-claude .speaker h3 { font-size: 17px; }
  .venue-card { min-height: 0; }
}

/* EASP 與 FISS 標誌並列 */
.brand .brand-fiss { width: 74px; height: 33px; }

/* 字級放大（2026-10-12）：小字約放大 2px，內文約 1px，大標不變。徵稿區另再放大。 */
.main-nav { font-size: 15px; }
.button, .nav-cta { font-size: 15px; }
.eyebrow, .section-label { font-size: 12px; }
.meta-label { font-size: 11px; }
.hero-meta strong { font-size: 16px; }
.joint-note { font-size: 13px; }
.brand-lockup small { font-size: 10px; }
.prose { font-size: 18px; }
.stat-text { font-size: 14px; }
.section-intro { font-size: 19px; }
.axis-label { font-size: 11px; }
.theme-claude .axis-card p { font-size: 17px; }
.date-list h3 { font-size: 22px; }
.date-list p { font-size: 15px; }
.cfp p { font-size: 20px; }
.cfp-list li { font-size: 18px; }
.cfp .button { font-size: 17px; }
.speaker h3 { font-size: 21px; }
.speaker p { font-size: 15px; }
.venue-card p { font-size: 17px; }
.footer-grid p, .footer-grid li { font-size: 14px; }
.footer-grid h3 { font-size: 12px; }
.footer-bottom { font-size: 12px; }
@media (max-width: 760px) {
  .theme-claude .speaker h3 { font-size: 18px; }
}

/* 報名區指向徵稿頁的連結 */
.register .section-intro a { text-decoration: underline; text-underline-offset: 3px; }

/* 上方選單加了「Submit」（2026-10-12）。中等寬度放不下，比照原本 ≤1050px 隱藏次要項目的做法：
   761–1120px 隱藏 Theme、Speakers；761–900px 再隱藏 About，間距縮為 12px。手機選單（≤760px）不受影響。 */
@media (min-width: 761px) and (max-width: 1120px) { .main-nav { gap: 15px; } .main-nav a:nth-child(2), .main-nav a:nth-child(5), .main-nav a:nth-child(6) { display: none; } }
@media (min-width: 761px) and (max-width: 900px) { .main-nav { gap: 12px; } .main-nav a:nth-child(1) { display: none; } }

/* 2026-10-13 教授：標誌放大、字體太細。標題類（Georgia）一律改粗體，選單字也加粗。1200px 以下維持原本標誌大小。 */
.brand img { width: 160px; height: 44px; }
.brand .brand-fiss { width: 98px; height: 44px; }
.main-nav a { font-weight: 700; }
.theme-claude .brand-lockup, .stat-number, .axis-index, .date-list h3, .footer-brand, .avatar,
.hero-subtitle, .theme-claude .hero-subtitle, .theme-sub { font-weight: 700; }
/* 選單字加粗後變寬：中等寬度縮小標誌和選單間距，1200px 以下標誌改回原本大小 */
.main-nav a { white-space: nowrap; }
@media (min-width: 1201px) and (max-width: 1300px) {
  .brand img { width: 130px; height: 40px; }
  .brand .brand-fiss { width: 86px; height: 40px; }
}
@media (max-width: 1200px) {
  .brand img { width: 81px; height: 33px; }
  .brand .brand-fiss { width: 74px; height: 33px; }
}
@media (min-width: 761px) and (max-width: 1300px) { .main-nav { gap: 14px; } }
@media (min-width: 761px) and (max-width: 1120px) { .main-nav { gap: 12px; font-size: 14px; } }
@media (min-width: 761px) and (max-width: 900px) { .main-nav { gap: 10px; } }

/* 關於大會段落裡連到 EASP、FISS 網站的連結（2026-10-13） */
.prose a { text-decoration: underline; text-underline-offset: 3px; }

/* 2026-10-13 教授：About 右邊三格改成直排，左邊文字欄加寬（手機維持原本三格橫排） */
@media (min-width: 761px) {
  .theme-claude #about .about-grid { grid-template-columns: minmax(0, 760px) 220px; justify-content: space-between; gap: 56px; }
  .theme-claude #about .stats { grid-template-columns: 1fr; align-items: stretch; }
  .theme-claude #about .stat { min-height: 200px; }
}

/* 2026-10-13 選單加「Awards」（第 5 項，連到徵稿頁獎項）。Speakers 變第 6 項，1120px 以下 Theme、Awards、Speakers 一起隱藏。 */

/* 2026-10-13 教授：標誌的白底看起來怪，改成透明，跟網站底色一樣 */
.brand img { background: transparent; }

/* 2026-10-13 教授：EASP 四個字母要跟 FISS 一樣大。
   EASP 圖檔的大字只佔圖高約 62%（第 12–74 列，偏上），FISS 字母約佔 92.5%。
   依字母高度反推圖片高度（寬度依原圖比例），透明底不再需要內距；EASP 下移 3px 讓兩組字母中心對齊。 */
.brand img { padding: 0; border-radius: 0; }
.brand img:not(.brand-fiss) { position: relative; top: 3px; }
.brand img { width: 195px; height: 42px; }            /* EASP 字高約 26px */
.brand .brand-fiss { width: 74px; height: 28px; }     /* FISS 字高約 26px */
@media (min-width: 1201px) and (max-width: 1300px) {
  .brand img { width: 172px; height: 37px; }          /* 字高約 23px */
  .brand .brand-fiss { width: 65px; height: 25px; }
}
@media (max-width: 1200px) {
  .brand img { width: 120px; height: 26px; } /* 字高約 16px */
  .brand img:not(.brand-fiss) { top: 2px; }
  .brand .brand-fiss { width: 45px; height: 17px; }
}

/* 2026-10-13 教授：FISS 再大一點點（約放大 15%） */
.brand .brand-fiss { width: 85px; height: 32px; }
@media (min-width: 1201px) and (max-width: 1300px) { .brand .brand-fiss { width: 75px; height: 29px; } }
@media (max-width: 1200px) { .brand .brand-fiss { width: 52px; height: 20px; } }

/* 2026-10-13 臺大社工系加連結：場地卡片與頁尾的連結要看得出來 */
.venue-card p a, .footer-grid li a { text-decoration: underline; text-underline-offset: 3px; }