:root {
  color-scheme: light;
  --ink: #2c2440;
  --muted: #696178;
  --purple: #6a3dc2;
  --deep: #4c278e;
  --line: #e7e0ed;
  --paper: #fffefa;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; color: var(--ink); background: #faf8fb; font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
:focus-visible { outline: 3px solid #ad78e5; outline-offset: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 20; top: -70px; left: 20px; padding: 12px 17px; border-radius: 10px; background: white; box-shadow: 0 8px 20px #2c244033; }
.skip-link:focus { top: 14px; }
.app-layout { display: grid; grid-template-columns: 256px minmax(0,1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; padding: 34px 22px 23px; display: flex; flex-direction: column; background: #f3edf9; border-right: 1px solid #e5d9ef; }
.brand { display: flex; gap: 11px; align-items: center; width: max-content; }
.brand img { border-radius: 12px; box-shadow: 0 6px 14px #6231aa32; }
.brand span { display: flex; flex-direction: column; gap: 4px; }
.brand strong { font-size: 20px; line-height: 1; letter-spacing: -.045em; }
.brand small { color: #8a76a1; font-size: 9px; font-weight: 800; letter-spacing: .19em; }
.sidebar-rule { height: 1px; background: #dfd1e9; margin: 31px 0; }
.side-nav { display: flex; flex-direction: column; gap: 5px; }
.nav-label, .sidebar-footer, .eyebrow, .section-index, .topic-number, .contact-label { font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.nav-label { color: #9585a6; margin: 0 12px 14px; }
.side-nav a { display: flex; gap: 12px; align-items: center; min-height: 46px; padding: 0 13px; border-radius: 10px; color: #615670; font-size: 13px; font-weight: 650; transition: background .2s, color .2s; }
.side-nav a:hover, .side-nav a.active { background: #fff; color: var(--deep); }
.side-nav a.active { box-shadow: 0 5px 16px #5335680d; }
.nav-glyph { width: 18px; font-family: var(--serif); font-size: 20px; font-weight: 400; text-align: center; line-height: 1; }
.sidebar-bottom { margin-top: auto; padding: 21px 17px 22px; border: 1px solid #dbcbe7; border-radius: 16px; background: #faf7fc; }
.mini-plant { display: block; color: #a87cc9; font-size: 32px; line-height: 1; }
.sidebar-bottom p { margin: 18px 0; font-family: var(--serif); font-size: 19px; line-height: 1.2; letter-spacing: -.035em; }
.sidebar-bottom a { color: var(--deep); font-size: 11px; font-weight: 750; text-decoration: underline; text-underline-offset: 4px; }
.sidebar-footer { color: #b5a7c2; margin: 22px 7px 0; font-size: 9px; }
.main-content { min-width: 0; padding: 0 clamp(24px,4.5vw,82px); }
.mobile-header { display: none; }
.welcome { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 32px; max-width: 1180px; min-height: 462px; margin: 36px auto 0; padding: clamp(40px,5vw,70px); border-radius: 24px; position: relative; overflow: hidden; background: linear-gradient(110deg,#f5eeff 0%,#faf4f9 55%,#f6e9f1 100%); border: 1px solid #ece0f3; }
.welcome-text { z-index: 1; align-self: center; }
.eyebrow { color: var(--purple); display: inline-flex; align-items: center; gap: 8px; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: #b376d0; box-shadow: 0 0 0 4px #dcc1ef; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.05em; }
.welcome h1 { margin: 21px 0 15px; font-size: clamp(48px,5.3vw,76px); line-height: 1.05; }
.welcome h1 em { color: var(--purple); font-weight: 400; }
.welcome-text > p:not(.search-count) { max-width: 550px; margin: 0; color: #61596c; font-size: 15px; line-height: 1.72; }
.search-box { display: flex; align-items: center; gap: 13px; max-width: 560px; height: 62px; margin-top: 30px; padding: 0 19px; background: #fff; border: 1px solid #e0d5e9; border-radius: 13px; box-shadow: 0 12px 30px #51377412; }
.search-box:focus-within { border-color: #8c60d0; box-shadow: 0 0 0 4px #e9d9fa; }
.search-box svg { width: 21px; height: 21px; flex: 0 0 auto; fill: none; stroke: #806b9a; stroke-width: 2; stroke-linecap: round; }
.search-box input { min-width: 0; flex: 1; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: 14px; }
.search-box input::placeholder { color: #8b8095; }
.search-hint { color: #b4a6c1; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.search-count { min-height: 17px; margin: 8px 2px 0; color: #70647d; font-size: 12px; }
.welcome-visual { position: relative; align-self: stretch; display: grid; place-items: center; }
.visual-arc { position: absolute; border: 1px solid #d8bee9; border-radius: 50%; }
.arc-one { width: 370px; height: 370px; }
.arc-two { width: 270px; height: 270px; }
.specimen { width: 220px; height: 320px; z-index: 1; padding: 14px 16px; background: #fffefa; border: 1px solid #e3d7d8; box-shadow: 0 27px 40px #5b407e30, 6px 6px 0 #dbc9e6; transform: rotate(7deg); }
.specimen-top { display: flex; justify-content: space-between; align-items: center; color: #9c8c85; font-size: 8px; font-weight: 750; letter-spacing: .1em; }
.specimen-top span:last-child { color: #b98ac1; font-size: 18px; }
.specimen svg { width: 100%; height: 238px; }
.specimen-caption { display: flex; flex-direction: column; gap: 3px; border-top: 1px solid #ddd4c9; padding-top: 7px; }
.specimen-caption strong { font-family: var(--serif); font-size: 12px; font-weight: 400; font-style: italic; }
.specimen-caption span { color: #958b80; font-size: 7px; letter-spacing: .1em; text-transform: uppercase; }
.visual-caption { position: absolute; right: -13px; bottom: 0; color: #b697c5; font-size: 8px; font-weight: 700; letter-spacing: .16em; writing-mode: vertical-rl; }
.topics, .faq-section, .contact-section, .site-footer { max-width: 1180px; margin-left: auto; margin-right: auto; }
.topics, .faq-section { padding-top: 77px; }
.section-title { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 29px; }
.section-title h2 { margin: 11px 0 0; font-size: clamp(35px,3.5vw,48px); line-height: 1.1; }
.section-index { color: #a298ad; padding-bottom: 6px; }
.topic-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 13px; }
.topic-card { position: relative; display: flex; flex-direction: column; min-height: 253px; padding: 22px 19px 20px; border: 1px solid var(--line); border-radius: 15px; background: #fff; transition: border-color .2s, box-shadow .2s, transform .2s; }
.topic-card:hover { border-color: #bba1d9; box-shadow: 0 13px 30px #4c2e7e15; transform: translateY(-3px); }
.topic-number { color: #897399; font-size: 9px; }
.topic-symbol { width: 43px; height: 43px; margin-top: 29px; display: grid; place-items: center; border-radius: 13px; background: #f2e8fa; color: #7950aa; font-family: var(--serif); font-size: 27px; }
.topic-card:nth-child(2) .topic-symbol { background: #fae9f0; color: #b5688c; }
.topic-card:nth-child(3) .topic-symbol { background: #eff2e8; color: #71806a; }
.topic-card:nth-child(4) .topic-symbol { background: #f8eee1; color: #ab8253; }
.topic-card h3 { margin: 16px 0 7px; font-size: 21px; line-height: 1.15; }
.topic-card p { margin: 0 0 23px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.topic-arrow { position: absolute; right: 20px; bottom: 15px; color: #8c69b6; font-size: 18px; }
.faq-section { padding-bottom: 77px; }
.faq-layout { display: grid; grid-template-columns: 235px minmax(0,1fr); gap: 26px; align-items: start; }
.faq-aside { padding: 23px; background: #eee6f5; border-radius: 15px; }
.aside-mark { display: grid; place-items: center; width: 42px; height: 42px; background: #fff; border-radius: 50%; color: var(--purple); font-family: var(--serif); font-size: 25px; }
.faq-aside p { margin: 38px 0 15px; max-width: 150px; font-family: var(--serif); font-size: 22px; line-height: 1.18; letter-spacing: -.04em; }
.faq-aside a { color: var(--deep); font-size: 12px; font-weight: 750; text-decoration: underline; text-underline-offset: 4px; }
.faq-list { border-top: 1px solid #ded7e6; }
.faq-item { border-bottom: 1px solid #ded7e6; scroll-margin-top: 30px; }
.faq-item summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 68px; padding: 13px 3px; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 18px; line-height: 1.3; letter-spacing: -.025em; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--deep); }
.faq-plus { position: relative; width: 26px; height: 26px; flex: 0 0 auto; border: 1px solid #d8c9e6; border-radius: 50%; }
.faq-plus::before, .faq-plus::after { position: absolute; left: 8px; top: 12px; width: 9px; height: 1.5px; content: ""; background: #785aa1; transition: transform .2s; }
.faq-plus::after { transform: rotate(90deg); }
.faq-item[open] .faq-plus::after { transform: rotate(0); }
.faq-answer { padding: 0 46px 23px 3px; color: var(--muted); font-size: 13px; line-height: 1.77; }
.empty-state { padding: 25px 3px; color: var(--muted); font-size: 13px; }
.contact-section { display: grid; grid-template-columns: 1fr 295px; gap: 36px; align-items: center; margin-bottom: 53px; padding: 37px 43px; background: #eae0f3; border: 1px solid #dfd0ec; border-radius: 18px; }
.contact-heading h2 { margin: 11px 0 12px; font-size: clamp(33px,3.3vw,44px); line-height: 1.1; }
.contact-heading p { max-width: 580px; margin: 0; color: #62576e; font-size: 13px; line-height: 1.7; }
.contact-action { display: flex; flex-direction: column; align-items: start; min-height: 168px; padding: 22px; background: var(--deep); color: white; border-radius: 13px; }
.mail-symbol { align-self: end; font-size: 23px; }
.contact-label { color: #d5b9ef; margin-top: auto; }
.contact-action a { margin-top: 7px; font-size: 19px; font-weight: 750; letter-spacing: -.035em; text-decoration: underline; text-underline-offset: 4px; }
.contact-action a:hover { color: #f5dce9; }
.contact-note { margin-top: 8px; color: #d4c0e9; font-size: 10px; }
.site-footer { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; min-height: 85px; padding: 20px 0 38px; border-top: 1px solid var(--line); font-size: 12px; }
.site-footer strong { font-size: 16px; letter-spacing: -.04em; }
.site-footer span, .site-footer small { color: #8a8193; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; font-weight: 650; }
.site-footer nav a:hover { color: var(--purple); text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 1180px) { .app-layout { grid-template-columns: 214px minmax(0,1fr); } .sidebar { padding-left: 16px; padding-right: 16px; } .main-content { padding: 0 28px; } .welcome { grid-template-columns: 1fr 235px; padding: 40px; } .welcome h1 { font-size: clamp(45px,5vw,63px); } .arc-one { width: 290px; height: 290px; } .arc-two { width: 215px; height: 215px; } .specimen { width: 175px; height: 255px; } .specimen svg { height: 181px; } .topic-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .topic-card { min-height: 224px; } }
@media (max-width: 760px) { html { scroll-padding-top: 80px; } .app-layout { display: block; } .sidebar { display: none; } .main-content { padding: 0 19px; } .mobile-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 74px; } .mobile-header .brand strong { font-size: 18px; } .mobile-contact { font-size: 12px; font-weight: 750; color: var(--deep); } .welcome { margin-top: 0; min-height: 0; display: block; padding: 36px 27px 15px; } .welcome h1 { font-size: clamp(42px,10vw,64px); } .welcome-text > p:not(.search-count) { font-size: 14px; } .search-box { height: 56px; margin-top: 24px; } .welcome-visual { height: 235px; overflow: hidden; margin-top: 10px; } .arc-one { width: 245px; height: 245px; } .arc-two { width: 180px; height: 180px; } .specimen { width: 145px; height: 215px; padding: 9px; } .specimen svg { height: 152px; } .specimen-caption strong { font-size: 9px; } .specimen-caption span { font-size: 6px; } .visual-caption { display: none; } .topics, .faq-section { padding-top: 57px; } .section-title h2 { font-size: 36px; } .topic-grid { gap: 10px; } .topic-card { min-height: 235px; padding: 17px; } .topic-card h3 { font-size: 19px; } .topic-symbol { margin-top: 22px; } .faq-layout { display: block; } .faq-aside { display: none; } .faq-item summary { font-size: 17px; } .faq-section { padding-bottom: 58px; } .contact-section { display: block; padding: 28px; } .contact-heading h2 { font-size: 37px; } .contact-action { margin-top: 25px; min-height: 146px; } .site-footer { gap: 15px; } .site-footer nav { width: 100%; margin-left: 0; } }
@media (max-width: 460px) { .main-content { padding: 0 12px; } .welcome { padding: 31px 22px 12px; border-radius: 18px; } .welcome h1 { font-size: 42px; } .search-hint { display: none; } .topic-grid { grid-template-columns: 1fr; } .topic-card { min-height: 185px; } .topic-symbol { position: absolute; right: 18px; top: 18px; margin-top: 0; } .topic-card h3 { margin-top: 54px; } .contact-section { padding: 24px; } .site-footer { padding-bottom: 30px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }