:root {
  --ink: #151712;
  --ink-soft: #55594e;
  --paper: #f7f7f3;
  --paper-deep: #f3effb;
  --white: #fbf9ff;
  --lime: #b8e600;
  --lime-deep: #a6d800;
  --lilac: #a586e0;
  --lilac-soft: #e9e0f5;
  --purple: #7a5aa4;
  --purple-deep: #654486;
  --mint: #2bc4b0;
  --mint-soft: #e3f7f3;
  --orange: #7a5aa4;
  --brown: #4b2f25;
  --camp-df: #ff7a3c;
  --camp-dr: #a586e0;
  --camp-sf: #2bc4b0;
  --camp-sr: #9ec25a;
  --line: #e5def4;
  --shadow-card: 0 10px 28px rgba(92,66,132,.08);
  --shadow-raised: 0 14px 36px rgba(81,61,112,.1);
  --max: 1380px;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: radial-gradient(circle at 82% 4%, rgba(233,224,245,.72), transparent 28%), var(--paper); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, summary { color: inherit; font: inherit; }
h1, h2, h3, p { margin-top: 0; }
::selection { background: var(--lime); color: var(--ink); }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; background: var(--ink); color: var(--white); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.scroll-track { position: fixed; z-index: 60; top: 0; right: 0; left: 0; height: 3px; pointer-events: none; }
.scroll-track i { display: block; width: 100%; height: 100%; background: var(--lime); transform: scaleX(0); transform-origin: left center; }

.site-header { position: fixed; z-index: 50; top: 0; right: 0; left: 0; display: flex; width: min(var(--max), calc(100% - 64px)); height: 94px; align-items: center; justify-content: space-between; margin: auto; transition: background .25s, border-color .25s, width .25s, padding .25s; }
.site-header.scrolled { top: 10px; width: min(1180px, calc(100% - 30px)); height: 68px; padding: 0 16px 0 22px; border: 1px solid var(--line); border-radius: 999px; background: rgba(251,249,255,.92); box-shadow: var(--shadow-raised); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; }
.brand img { width: 48px; height: 48px; border-radius: 14px; object-fit: cover; }
.site-nav { display: flex; align-items: center; gap: 32px; color: #4f4649; font-size: 12px; font-weight: 800; }
.site-nav a { position: relative; padding: 10px 0; }
.site-nav a:not(.nav-start)::after { position: absolute; right: 0; bottom: 3px; left: 0; height: 2px; background: var(--purple); content: ""; transform: scaleX(0); transition: transform .2s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.site-nav .nav-start { display: flex; min-height: 43px; align-items: center; gap: 22px; padding: 0 18px; border-radius: 999px; background: var(--lime); box-shadow: 0 10px 24px rgba(144,181,0,.18); color: var(--ink); }
.nav-start b { color: var(--purple-deep); font-size: 16px; }
.menu-button { display: none; width: 44px; height: 44px; border: 0; background: var(--ink); }
.menu-button span { display: block; width: 19px; height: 2px; margin: 5px auto; background: var(--white); transition: transform .2s; }

.cover { position: relative; display: grid; width: min(1500px,100%); min-height: 850px; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(28px,5vw,92px); margin: auto; padding: 132px clamp(28px,5vw,76px) 64px; }
.cover-copy { position: relative; z-index: 2; padding-left: clamp(0px,3vw,42px); }
.cover-meta { display: flex; max-width: 690px; justify-content: space-between; margin-bottom: 54px; padding-bottom: 13px; border-bottom: 1px solid rgba(32,26,28,.35); color: #655b5e; font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.cover-meta b { color: #8a7e81; font-weight: 700; }
.cover h1 { margin: 0; color: var(--ink); font-size: clamp(62px,7.15vw,112px); font-weight: 800; letter-spacing: -.078em; line-height: .96; }
.cover h1 span, .cover h1 em { display: block; }
.cover h1 em { margin-top: .14em; color: var(--brown); font-style: normal; }
.cover-intro { max-width: 580px; margin: 38px 0 0; color: #6a6063; font-size: 15px; line-height: 1.9; }
.cover-actions { display: flex; align-items: center; gap: 28px; margin-top: 38px; }
.primary-action { display: flex; min-height: 60px; align-items: center; gap: 38px; padding: 0 26px; border-radius: 999px; background: linear-gradient(90deg,var(--lime),#c9f21c); box-shadow: 0 14px 32px rgba(144,181,0,.18); color: var(--ink); font-size: 13px; font-weight: 800; transition: transform .2s, box-shadow .2s; }
.primary-action:hover { box-shadow: 0 18px 36px rgba(32,26,28,.2); transform: translateY(-2px); }
.primary-action i { color: var(--lime); font-size: 18px; font-style: normal; }
.quiet-action { padding: 8px 0; border-bottom: 1px solid #8c8184; font-size: 12px; font-weight: 800; }
.quiet-action span { margin-left: 7px; color: var(--orange); }
.cover-art { position: relative; min-height: 640px; }
.cover-photo { position: absolute; inset: 34px 22px 20px 58px; overflow: hidden; border: 1px solid var(--line); border-radius: 42px; background: #171417; box-shadow: var(--shadow-raised); transform: rotate(2.5deg); }
.cover-photo::after { position: absolute; inset: 0; background: linear-gradient(160deg,transparent 45%,rgba(18,13,16,.4)); content: ""; }
.cover-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 74% center; filter: saturate(.92) contrast(1.05); transform: scale(1.04) rotate(-2.5deg); }
.cover-slogan { position: absolute; z-index: 2; right: -4px; bottom: 50px; margin: 0; color: var(--white); font-family: "Kaiti SC","STKaiti",serif; font-size: clamp(30px,3.5vw,54px); font-weight: 800; letter-spacing: -.08em; line-height: 1.05; transform: rotate(-7deg); }
.cover-slogan i { color: var(--lime); font-style: normal; }
.hold { position: absolute; z-index: 3; display: grid; min-width: 70px; min-height: 48px; place-items: center; padding: 0 15px; border: 2px solid rgba(32,26,28,.08); border-radius: 999px; color: #342d31; font-size: 11px; font-weight: 800; box-shadow: 0 12px 24px rgba(50,35,42,.13); }
.hold-lime { top: 12px; left: 0; background: var(--lime); transform: rotate(-12deg); }
.hold-lilac { top: 90px; right: -5px; background: var(--lilac); transform: rotate(9deg); }
.hold-mint { bottom: 11px; left: 30px; background: var(--mint); transform: rotate(6deg); }
.route-dots { position: absolute; z-index: 2; top: 18%; left: 45%; display: flex; flex-direction: column; gap: 11px; }
.route-dots i { width: 7px; height: 7px; border: 1px solid rgba(255,255,255,.88); border-radius: 50%; }
.photo-note { position: absolute; z-index: 3; top: 50%; right: -35px; margin: 0; color: rgba(255,255,255,.8); font-size: 8px; font-weight: 800; letter-spacing: .18em; transform: rotate(90deg); }
.cover-side { position: absolute; right: 8px; bottom: 65px; margin: 0; color: #817679; font-size: 9px; font-weight: 800; letter-spacing: .18em; transform: rotate(90deg); transform-origin: right bottom; }

.route-strip { display: flex; min-width: max-content; align-items: center; justify-content: center; gap: clamp(22px,4vw,65px); padding: 22px 32px; background: var(--ink); color: var(--white); font-size: clamp(13px,1.5vw,20px); font-weight: 800; letter-spacing: .03em; }
.route-strip i { color: var(--lime); font-size: 8px; font-style: normal; }
.route-strip strong { color: var(--lilac); font-size: 11px; letter-spacing: .13em; }

.field-guide { width: min(var(--max), calc(100% - 64px)); margin: auto; padding: 145px 0 130px; }
.section-intro { margin-bottom: 92px; }
.section-intro > p { display: flex; justify-content: space-between; margin: 0 0 36px; padding-bottom: 14px; border-bottom: 1px solid var(--line); color: #6d6265; font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.section-intro > p b { color: #92878a; }
.section-intro h2 { max-width: 1000px; margin: 0; font-size: clamp(54px,7.4vw,106px); font-weight: 800; letter-spacing: -.075em; line-height: .96; }
.section-intro > div { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 38px; padding-left: 50%; }
.section-intro > div p { margin: 0; color: #6a6063; font-size: 14px; line-height: 1.85; }
.section-intro > div span { color: var(--brown); font-family: "Kaiti SC","STKaiti",serif; font-size: 19px; font-weight: 800; }

.chapter { display: grid; min-height: 670px; overflow: hidden; border: 1px solid var(--line); border-radius: 32px; background: rgba(251,249,255,.94); box-shadow: var(--shadow-card); }
.chapter-gyms { grid-template-columns: .78fr 1.22fr; }
.chapter-copy { position: relative; display: flex; flex-direction: column; justify-content: center; padding: clamp(38px,6vw,88px); }
.chapter-no { position: absolute; top: 32px; left: 34px; color: #8f8386; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.chapter-label { margin: 0 0 24px; color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.chapter h3, .chapter-pair h3 { margin: 0; font-size: clamp(42px,5vw,70px); font-weight: 800; letter-spacing: -.065em; line-height: 1.02; }
.chapter-copy > p:not(.chapter-label) { max-width: 430px; margin: 28px 0 0; color: #6c6264; font-size: 14px; line-height: 1.82; }
.chapter-copy ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 28px 0 0; padding: 0; list-style: none; }
.chapter-copy li { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: 10px; font-weight: 800; }
.gym-visual { position: relative; min-height: 670px; overflow: hidden; }
.gym-visual > img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.84) contrast(1.04); transition: transform .6s; }
.chapter:hover .gym-visual > img { transform: scale(1.025); }
.gym-visual::after { position: absolute; inset: 0; background: linear-gradient(180deg,transparent 42%,rgba(23,18,20,.55)); content: ""; }
.map-card { position: absolute; z-index: 2; right: 26px; bottom: 26px; left: 26px; padding: 22px; border: 1px solid rgba(255,255,255,.44); background: rgba(250,247,241,.91); box-shadow: 0 18px 45px rgba(22,17,19,.2); backdrop-filter: blur(15px); }
.map-card p { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; color: #756a6d; font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.map-card p i { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(241,115,66,.15); }
.map-card strong { display: block; font-size: 20px; letter-spacing: -.03em; }
.map-card > span { display: flex; justify-content: space-between; margin-top: 20px; padding-top: 13px; border-top: 1px solid var(--line); color: #72686a; font-size: 10px; }
.map-card b { color: var(--orange); font-size: 15px; }
.image-caption { position: absolute; z-index: 2; top: 22px; right: 22px; padding: 9px 11px; background: rgba(32,26,28,.82); color: var(--white); font-size: 8px; font-weight: 800; letter-spacing: .08em; }

.chapter-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 18px 0; }
.safety-card, .growth-card { position: relative; min-height: 720px; overflow: hidden; padding: clamp(32px,5vw,70px); border: 1px solid var(--line); border-radius: 32px; box-shadow: var(--shadow-card); }
.safety-card { background: var(--lilac-soft); }
.growth-card { background: var(--ink); color: var(--white); }
.chapter-card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 60px; }
.chapter-card-head .chapter-no { position: static; }
.chapter-card-head .chapter-label { margin: 0; }
.safety-card > p, .growth-card > p { max-width: 470px; margin: 26px 0 0; color: #665c61; font-size: 13px; line-height: 1.8; }
.growth-card > p { color: rgba(255,253,247,.61); }
.safety-orbit { position: relative; width: min(470px,95%); aspect-ratio: 1; margin: 38px auto -145px; border: 1px solid rgba(70,47,90,.2); border-radius: 50%; }
.safety-orbit::before, .safety-orbit::after { position: absolute; border: 1px solid rgba(70,47,90,.14); border-radius: 50%; content: ""; }
.safety-orbit::before { inset: 18%; }
.safety-orbit::after { inset: 34%; }
.safety-orbit div { position: absolute; display: flex; width: 76px; height: 76px; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(32,26,28,.12); border-radius: 50%; background: var(--white); box-shadow: 0 10px 24px rgba(69,51,82,.1); }
.safety-orbit div:nth-child(1) { top: -8px; left: 50%; background: var(--lime); transform: translateX(-50%); }
.safety-orbit div:nth-child(2) { top: 31%; right: -18px; }
.safety-orbit div:nth-child(3) { right: 10%; bottom: 5%; background: var(--mint-soft); }
.safety-orbit div:nth-child(4) { bottom: 5%; left: 10%; }
.safety-orbit span { color: #85797e; font-size: 8px; }
.safety-orbit b { margin-top: 4px; font-size: 12px; }
.safety-orbit em { position: absolute; top: 50%; left: 50%; margin: 0; font-family: "Kaiti SC","STKaiti",serif; font-size: 23px; font-style: normal; font-weight: 800; line-height: 1.2; text-align: center; transform: translate(-50%,-50%) rotate(-7deg); }
.growth-panel { display: grid; grid-template-columns: 150px 1fr; gap: 18px; margin-top: 58px; }
.growth-total { display: flex; min-height: 225px; flex-direction: column; justify-content: space-between; padding: 20px; background: var(--lime); color: var(--ink); }
.growth-total small { font-size: 8px; font-weight: 800; letter-spacing: .1em; }
.growth-total strong { font-size: 70px; letter-spacing: -.08em; line-height: .8; }
.growth-total em { margin-left: 3px; font-size: 12px; font-style: normal; }
.growth-total span { font-size: 10px; font-weight: 800; }
.heatmap { display: grid; grid-template-columns: repeat(7,1fr); gap: 8px; align-content: center; }
.heatmap i { aspect-ratio: 1; border-radius: 3px; background: rgba(255,255,255,.09); }
.heatmap .level-1 { background: #596231; }
.heatmap .level-2 { background: #8daa2c; }
.heatmap .level-3 { background: var(--lime); }

.chapter-people { grid-template-columns: 1.15fr .85fr; background: linear-gradient(135deg,var(--mint-soft),var(--white)); }

.personality { position: relative; padding: 150px max(32px,calc((100% - var(--max))/2)); overflow: hidden; background: linear-gradient(150deg,#fbf9ff 0%,#f3effb 58%,#eff7d5 100%); }
.personality::before, .personality::after { position: absolute; border: 1px solid rgba(122,90,164,.14); border-radius: 50%; content: ""; pointer-events: none; }
.personality::before { top: -160px; right: -110px; width: 430px; height: 430px; }
.personality::after { right: 14%; bottom: 90px; width: 180px; height: 180px; }
.personality-intro { position: relative; z-index: 1; }
.personality-intro > p { display: flex; justify-content: space-between; margin: 0 0 36px; padding-bottom: 14px; border-bottom: 1px solid var(--line); color: var(--purple); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.personality-intro > p b { color: var(--ink-soft); }
.personality-intro h2 { max-width: 1180px; margin: 0; font-size: clamp(54px,6.1vw,88px); font-weight: 800; letter-spacing: -.072em; line-height: .98; }
.personality-intro > div { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 40px; padding-left: 50%; }
.personality-intro > div p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.personality-intro a { align-self: start; justify-self: start; padding-bottom: 7px; border-bottom: 2px solid var(--lime-deep); color: var(--purple-deep); font-size: 13px; font-weight: 800; }
.personality-intro a span { margin-left: 12px; color: var(--lime-deep); }
.persona-route { position: relative; display: grid; min-height: 470px; grid-template-columns: .9fr 1.1fr; gap: clamp(38px,7vw,110px); align-items: center; margin-top: 84px; padding: clamp(34px,5vw,74px); overflow: hidden; border: 1px solid var(--line); border-radius: 42px; background: rgba(255,255,255,.82); box-shadow: var(--shadow-raised); }
.persona-route__copy { position: relative; z-index: 2; }
.persona-kicker { color: var(--purple); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.persona-route__copy strong { display: block; margin-top: 24px; font-size: clamp(38px,4.6vw,66px); font-weight: 800; letter-spacing: -.055em; line-height: 1.04; }
.persona-route__copy p { max-width: 430px; margin: 26px 0 0; color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.axis-map { position: relative; z-index: 2; display: grid; gap: 22px; }
.axis-map > div { display: grid; grid-template-columns: 34px 54px 1fr 54px 34px; align-items: center; gap: 10px; }
.axis-map b { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 10px; background: var(--lime); font-size: 13px; }
.axis-map b:last-child { background: var(--lilac-soft); color: var(--purple-deep); }
.axis-map span { color: var(--ink-soft); font-size: 11px; font-weight: 700; }
.axis-map span:nth-of-type(2) { text-align: right; }
.axis-map i { position: relative; height: 8px; overflow: hidden; border-radius: 999px; background: linear-gradient(90deg,var(--lime),var(--lilac)); }
.axis-map i::after { position: absolute; top: 50%; left: 54%; width: 14px; height: 14px; border: 3px solid var(--white); border-radius: 50%; background: var(--purple); box-shadow: 0 3px 8px rgba(81,61,112,.18); content: ""; transform: translate(-50%,-50%); }
.route-line { position: absolute; right: -30px; bottom: -65px; display: flex; width: 340px; height: 220px; align-items: flex-start; justify-content: space-around; border-top: 4px dashed rgba(166,216,0,.48); border-radius: 50%; transform: rotate(-12deg); }
.route-line i { width: 18px; height: 13px; border-radius: 60% 40% 65% 35%; background: var(--lime); transform: rotate(22deg); }
.camp-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-top: 18px; }
.camp-card { position: relative; min-height: 360px; padding: 30px; overflow: hidden; border: 1px solid rgba(21,23,18,.08); border-radius: 32px; box-shadow: var(--shadow-card); color: var(--ink); }
.camp-card::after { position: absolute; right: -24px; bottom: -18px; width: 110px; height: 82px; border: 2px solid rgba(21,23,18,.12); border-radius: 64% 36% 53% 47%; content: ""; transform: rotate(-18deg); }
.camp-card > span { display: inline-grid; min-width: 64px; height: 44px; place-items: center; border: 1px solid rgba(21,23,18,.14); border-radius: 999px; background: rgba(255,255,255,.62); font-size: 19px; font-weight: 800; letter-spacing: .08em; }
.camp-card small { display: block; margin-top: 52px; color: rgba(21,23,18,.62); font-size: 10px; font-weight: 700; }
.camp-card h3 { margin: 8px 0 0; font-size: 38px; font-weight: 800; letter-spacing: -.05em; }
.camp-card p { max-width: 230px; margin: 17px 0 0; color: rgba(21,23,18,.7); font-size: 13px; line-height: 1.7; }
.camp-card > b { position: absolute; bottom: 25px; left: 30px; font-size: 8px; letter-spacing: .14em; }
.camp-card--df { background: #ffe8dd; border-top: 8px solid var(--camp-df); }
.camp-card--dr { background: #eee8fa; border-top: 8px solid var(--camp-dr); }
.camp-card--sf { background: #ddf7f2; border-top: 8px solid var(--camp-sf); }
.camp-card--sr { background: #edf4dc; border-top: 8px solid var(--camp-sr); }
.personality-note { max-width: 690px; margin: 50px auto 0; color: var(--purple-deep); font-family: "Kaiti SC","STKaiti",serif; font-size: 20px; font-weight: 700; line-height: 1.7; text-align: center; }
.people-photo { position: relative; min-height: 640px; overflow: hidden; }
.people-photo::after { position: absolute; inset: 0; background: linear-gradient(155deg,transparent 45%,rgba(20,17,18,.62)); content: ""; }
.people-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 72% center; filter: saturate(.9) contrast(1.06); transition: transform .6s; }
.chapter-people:hover .people-photo img { transform: scale(1.025); }
.people-photo span { position: absolute; z-index: 2; right: 25px; bottom: 25px; color: var(--lime); font-size: clamp(22px,3vw,42px); font-weight: 800; letter-spacing: -.04em; line-height: .9; text-align: right; transform: rotate(-4deg); }
.persona-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.persona-tags b { padding: 10px 13px; border: 1px solid rgba(32,26,28,.18); border-radius: 999px; background: rgba(255,255,255,.5); font-size: 10px; }
.persona-tags b:nth-child(2) { background: var(--lime); }
.persona-tags b:nth-child(3) { background: var(--lilac); }

.letter { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(45px,8vw,140px); padding: 150px max(32px,calc((100% - var(--max))/2)); background: var(--purple-deep); color: var(--white); }
.letter-heading { align-self: start; position: sticky; top: 130px; }
.letter-heading > p { margin-bottom: 45px; color: var(--lime); font-size: 9px; font-weight: 800; letter-spacing: .17em; }
.letter-heading h2 { margin: 0; font-size: clamp(50px,6vw,86px); font-weight: 800; letter-spacing: -.072em; line-height: .99; }
.letter-paper { position: relative; max-width: 760px; justify-self: end; padding: clamp(38px,6vw,82px); border-radius: 38px; background: var(--white); box-shadow: 20px 24px 0 rgba(42,25,61,.18); color: var(--ink); transform: rotate(.7deg); }
.letter-paper::after { position: absolute; right: 18px; bottom: 17px; width: 80px; height: 12px; background: var(--mint); content: ""; transform: rotate(-5deg); }
.tape { position: absolute; top: -18px; left: 50%; width: 120px; height: 36px; background: rgba(200,241,53,.72); transform: translateX(-50%) rotate(-3deg); }
.hand-note { position: absolute; top: 55px; right: -48px; margin: 0; color: var(--lime); font-family: "Kaiti SC","STKaiti",serif; font-size: 17px; font-weight: 800; line-height: 1.15; transform: rotate(8deg); }
.letter-body { max-width: 570px; margin: auto; }
.letter-body > p { color: #5f5558; font-size: 14px; line-height: 2.05; }
.letter-body .letter-greeting { margin-bottom: 38px; color: var(--ink); font-family: "Kaiti SC","STKaiti",serif; font-size: 29px; font-weight: 800; }
.letter blockquote { margin: 42px 0; padding: 32px 0 32px 30px; border-left: 8px solid var(--lime); color: var(--ink); font-size: clamp(21px,2.2vw,30px); font-weight: 800; letter-spacing: -.035em; line-height: 1.55; }
.letter details { margin: 32px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.letter summary { display: flex; align-items: center; justify-content: space-between; padding: 19px 0; font-size: 12px; font-weight: 800; cursor: pointer; list-style: none; }
.letter summary::-webkit-details-marker { display: none; }
.letter summary span { color: var(--orange); font-size: 18px; transition: transform .2s; }
.letter details[open] summary span { transform: rotate(45deg); }
.letter details div { padding-bottom: 20px; }
.letter details p { color: #655b5e; font-size: 13px; line-height: 1.95; }
.letter-signoff { margin: 55px 0 0 !important; color: var(--ink) !important; font-family: "Kaiti SC","STKaiti",serif; font-size: 20px !important; font-weight: 800; }
.letter-signoff strong { display: inline-block; margin-top: 12px; color: var(--brown); font-size: 31px; }

.about { display: grid; width: min(var(--max), calc(100% - 64px)); grid-template-columns: .75fr 1.25fr; gap: 18px 70px; margin: auto; padding: 140px 0; }
.about-mark { display: grid; min-height: 480px; place-items: center; border: 1px solid var(--line); border-radius: 38px; background: linear-gradient(145deg,var(--lilac-soft),var(--white)); box-shadow: var(--shadow-card); }
.about-mark img { width: min(78%,360px); }
.about-copy { align-self: center; padding: 40px 0; }
.about-copy > p:first-child { color: var(--orange); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.about-copy h2 { margin: 28px 0; font-size: clamp(48px,6vw,84px); font-weight: 800; letter-spacing: -.07em; line-height: 1; }
.about-copy > p:last-child { max-width: 650px; margin: 0; color: #665c5f; font-size: 14px; line-height: 1.9; }
.beliefs { display: grid; grid-column: 1 / -1; grid-template-columns: repeat(3,1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); list-style: none; }
.beliefs li { display: flex; min-height: 118px; align-items: center; gap: 25px; padding: 24px 30px; border-right: 1px solid var(--line); }
.beliefs li:last-child { border-right: 0; }
.beliefs span { color: var(--orange); font-size: 10px; font-weight: 800; }
.beliefs b { font-size: 17px; letter-spacing: -.02em; }

.start { padding: 25px 32px 110px; }
.start-card { display: grid; width: min(var(--max),100%); min-height: 610px; grid-template-columns: .8fr 1.2fr; margin: auto; overflow: hidden; border: 1px solid var(--line); border-radius: 42px; background: linear-gradient(135deg,var(--lilac-soft),#eff7d5 76%); box-shadow: var(--shadow-raised); }
.start-avatar { position: relative; display: grid; place-items: center; overflow: hidden; border-right: 1px solid var(--line); background: var(--lilac); }
.start-avatar::before { position: absolute; width: 70%; aspect-ratio: 1; border: 1px solid rgba(32,26,28,.18); border-radius: 50%; content: ""; }
.start-avatar::after { position: absolute; width: 48%; aspect-ratio: 1; border: 1px solid rgba(32,26,28,.18); border-radius: 50%; content: ""; }
.start-avatar img { position: relative; z-index: 2; width: min(54%,240px); border-radius: 23%; box-shadow: 0 24px 45px rgba(47,29,54,.2); transform: rotate(-4deg); }
.start-avatar span { position: absolute; top: 26px; left: 26px; font-size: 9px; font-weight: 800; letter-spacing: .13em; line-height: 1.25; }
.start-copy { align-self: center; max-width: 700px; padding: clamp(42px,7vw,100px); }
.start-copy > p:first-child { margin-bottom: 28px; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.start-copy h2 { margin: 0; font-size: clamp(50px,6.4vw,90px); font-weight: 800; letter-spacing: -.075em; line-height: .98; }
.start-copy > p:not(:first-child) { max-width: 540px; margin: 30px 0; color: #4d4840; font-size: 14px; line-height: 1.85; }
.copy-button { display: grid; min-width: min(100%,480px); min-height: 68px; grid-template-columns: 1fr auto auto; align-items: center; gap: 24px; padding: 0 25px; border: 0; border-radius: 999px; background: var(--lime); box-shadow: 0 14px 32px rgba(144,181,0,.18); color: var(--ink); text-align: left; cursor: pointer; transition: transform .2s, box-shadow .2s; }
.copy-button:hover { box-shadow: 0 15px 28px rgba(32,26,28,.2); transform: translateY(-2px); }
.copy-button span { font-size: 12px; font-weight: 800; }
.copy-button b { color: var(--purple-deep); font-size: 17px; }
.copy-button i { font-size: 18px; font-style: normal; }
.start-copy small { display: block; max-width: 480px; margin-top: 16px; color: #625b4e; font-size: 9px; line-height: 1.7; }

.site-footer { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 28px; padding: 65px max(32px,calc((100% - var(--max))/2)) 28px; background: var(--ink); color: var(--white); }
.footer-brand img { width: 56px; height: 56px; border-radius: 16px; object-fit: cover; }
.site-footer > p { margin: 0; color: var(--lilac); font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.site-footer > div { display: flex; grid-column: 1 / -1; justify-content: space-between; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.55); font-size: 10px; }
.site-footer a:hover { color: var(--lime); }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1000px) {
  .site-header { width: calc(100% - 38px); height: 78px; }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; top: 65px; right: 0; display: none; width: 230px; align-items: stretch; flex-direction: column; gap: 0; padding: 12px; border: 1px solid var(--line); background: rgba(255,253,247,.97); box-shadow: 0 20px 50px rgba(32,26,28,.14); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 14px; }
  .cover { min-height: auto; grid-template-columns: 1fr; padding: 118px 24px 48px; }
  .cover-copy { padding: 30px 10px 12px; }
  .cover-art { min-height: 620px; }
  .cover-side { display: none; }
  .chapter-gyms, .chapter-people { grid-template-columns: 1fr; }
  .chapter-gyms .chapter-copy { min-height: 470px; }
  .gym-visual, .people-photo { min-height: 590px; }
  .chapter-people .chapter-copy { min-height: 500px; order: -1; }
  .personality { padding-top: 110px; padding-bottom: 110px; }
  .persona-route { grid-template-columns: 1fr; }
  .camp-grid { grid-template-columns: repeat(2,1fr); }
  .letter { grid-template-columns: 1fr; }
  .letter-heading { position: static; }
  .letter-paper { justify-self: stretch; }
  .about { grid-template-columns: 1fr; }
  .about-mark { min-height: 390px; }
  .start-card { grid-template-columns: 1fr; }
  .start-avatar { min-height: 440px; border-right: 0; border-bottom: 1px solid rgba(32,26,28,.2); }
}

@media (max-width: 700px) {
  .brand img { width: 46px; height: 46px; }
  .route-strip { justify-content: flex-start; overflow: hidden; padding: 18px 22px; }
  .route-strip strong { display: none; }
  .field-guide { width: calc(100% - 36px); padding: 95px 0 90px; }
  .section-intro { margin-bottom: 55px; }
  .section-intro h2 { font-size: 51px; }
  .section-intro > div { grid-template-columns: 1fr; gap: 16px; padding-left: 0; }
  .personality { padding: 95px 18px; }
  .personality-intro h2 { font-size: 51px; }
  .personality-intro > div { grid-template-columns: 1fr; gap: 18px; padding-left: 0; }
  .persona-route { margin-top: 58px; padding: 36px 25px; }
  .chapter-pair { grid-template-columns: 1fr; }
  .safety-card, .growth-card { min-height: 650px; padding: 30px 25px; }
  .chapter-card-head { margin-bottom: 42px; }
  .growth-panel { grid-template-columns: 125px 1fr; }
  .about { width: calc(100% - 36px); padding: 95px 0; }
  .beliefs { grid-template-columns: 1fr; }
  .beliefs li { min-height: 90px; border-right: 0; border-bottom: 1px solid var(--line); }
  .beliefs li:last-child { border-bottom: 0; }
  .letter { padding: 95px 18px; }
  .letter-paper { padding: 50px 27px; box-shadow: 10px 14px 0 rgba(28,17,13,.18); }
  .hand-note { display: none; }
  .start { padding: 8px 18px 75px; }
  .start-copy { padding: 50px 27px 55px; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer > div { align-items: flex-start; flex-direction: column; gap: 12px; }
}

@media (max-width: 520px) {
  .cover { gap: 4px; padding-right: 18px; padding-left: 18px; }
  .cover-copy { padding: 24px 4px 10px; }
  .cover-meta { margin-bottom: 34px; }
  .cover-meta b { display: none; }
  .cover h1 { font-size: clamp(50px,15vw,70px); }
  .cover-intro br { display: none; }
  .cover-actions { align-items: flex-start; flex-direction: column; gap: 16px; }
  .cover-art { min-height: 470px; }
  .cover-photo { inset: 28px 8px 15px 35px; }
  .cover-slogan { right: 8px; bottom: 38px; font-size: 32px; }
  .hold { min-width: 58px; min-height: 40px; padding: 0 12px; font-size: 9px; }
  .hold-lilac { right: 0; }
  .chapter { min-height: auto; }
  .chapter-copy { min-height: 440px; padding: 75px 26px 45px; }
  .chapter h3, .chapter-pair h3 { font-size: 43px; }
  .gym-visual { min-height: 470px; }
  .people-photo { min-height: 0; aspect-ratio: 4 / 3; }
  .map-card { right: 14px; bottom: 14px; left: 14px; }
  .safety-orbit { margin-top: 55px; }
  .safety-orbit div { width: 63px; height: 63px; }
  .growth-panel { gap: 10px; }
  .growth-total { min-height: 190px; }
  .growth-total strong { font-size: 58px; }
  .heatmap { gap: 5px; }
  .personality-intro h2 { font-size: 47px; }
  .persona-route__copy strong { font-size: 39px; }
  .axis-map > div { grid-template-columns: 32px 45px 1fr 45px 32px; gap: 7px; }
  .camp-grid { grid-template-columns: 1fr; }
  .camp-card { min-height: 320px; }
  .letter-heading h2, .about-copy h2, .start-copy h2 { font-size: 47px; }
  .letter blockquote { padding-left: 20px; font-size: 20px; }
  .about-mark { min-height: 320px; }
  .start-avatar { min-height: 340px; }
  .copy-button { grid-template-columns: 1fr auto; }
  .copy-button b { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}