:root {
  --paper: #f5efe4;
  --paper-deep: #eee5d7;
  --ink: #262523;
  --muted: #81796e;
  --red: #a74432;
  --red-dark: #7c2d25;
  --line: rgba(38, 37, 35, .14);
  --serif: "Songti SC", "STSongti", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); }
button, a { font: inherit; }
button { cursor: pointer; }
.grain { position: fixed; inset: 0; pointer-events: none; opacity: .16; z-index: 10; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.15'/%3E%3C/svg%3E"); mix-blend-mode: multiply; }
.site-header { max-width: 1240px; margin: auto; padding: 25px 34px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); position: relative; z-index: 2; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; }
.brand b { display: block; font-family: var(--serif); font-size: 19px; letter-spacing: .14em; }
.brand small { color: var(--muted); display: block; font-size: 10px; letter-spacing: .22em; margin-top: 3px; }
.brand-mark { width: 35px; height: 35px; display: grid; place-items: center; color: var(--paper); background: var(--red); font-family: var(--serif); font-weight: 700; font-size: 20px; border-radius: 50% 50% 48% 44%; transform: rotate(-7deg); }
.brand-mark.small { width: 27px; height: 27px; font-size: 15px; }
.main-nav { display: flex; gap: 40px; margin-left: 100px; }
.nav-link { color: var(--muted); text-decoration: none; font-size: 13px; position: relative; padding: 8px 0; }
.nav-link.active, .nav-link:hover { color: var(--ink); }
.nav-link.active::after { content: ""; position: absolute; height: 2px; width: 18px; background: var(--red); bottom: -2px; left: 50%; transform: translateX(-50%); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.icon-button { background: none; border: 0; color: var(--ink); font-size: 28px; line-height: 1; transform: rotate(-20deg); }
.reader-button { color: var(--red-dark); background: transparent; border: 1px solid var(--red); padding: 10px 15px; border-radius: 2px; font-size: 12px; }
.reader-button span { margin-left: 10px; font-size: 15px; }
main { position: relative; z-index: 1; }
.hero { max-width: 1240px; margin: auto; padding: 88px 34px 80px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; }
.eyebrow { color: var(--red); letter-spacing: .28em; font-size: 11px; font-weight: 700; margin: 0 0 20px; }
.hero h1 { font-family: var(--serif); font-size: clamp(38px, 5.4vw, 76px); line-height: 1.1; letter-spacing: -.04em; font-weight: 900; margin: 0 0 25px; }
.hero h1 em { color: var(--red); font-style: normal; }
.hero-copy { max-width: 465px; color: var(--muted); font-size: 15px; line-height: 2; margin: 0 0 31px; }
.hero-buttons { display: flex; gap: 12px; align-items: center; }
.primary-button { border: 0; color: #fff8ec; background: var(--red); padding: 14px 22px; border-radius: 2px; font-size: 13px; transition: transform .2s, background .2s; }
.primary-button:hover { background: var(--red-dark); transform: translateY(-2px); }
.text-button { color: var(--ink); border: 0; background: transparent; padding: 14px 8px; font-size: 13px; }
.text-button span { color: var(--red); margin-left: 8px; }
.hero-art { min-height: 365px; position: relative; display: grid; place-items: center; }
.sun { width: 280px; height: 280px; background: #d9ab66; border-radius: 50%; opacity: .78; position: absolute; top: 20px; right: 20%; }
.hill { position: absolute; bottom: 20px; width: 95%; height: 180px; background: #4d5552; clip-path: polygon(0 95%, 14% 62%, 24% 78%, 38% 30%, 49% 63%, 62% 18%, 76% 69%, 90% 48%, 100% 80%, 100% 100%, 0 100%); opacity: .92; }
.hill.back { bottom: 52px; background: #697065; transform: scaleX(1.1); opacity: .48; }
.seal { position: absolute; color: var(--paper); border: 1px solid var(--paper); font-family: var(--serif); font-size: 22px; line-height: 1.25; letter-spacing: .08em; padding: 9px 7px; writing-mode: vertical-rl; background: var(--red); right: 5%; top: 73px; transform: rotate(7deg); }
.brush { position: absolute; font-family: var(--serif); font-weight: 900; color: rgba(38,37,35,.1); font-size: 160px; transform: rotate(-12deg); left: 3%; top: 10px; }
.section { max-width: 1240px; margin: auto; padding: 26px 34px 100px; }
.section-head { display: flex; justify-content: space-between; align-items: end; border-top: 1px solid var(--line); padding-top: 28px; margin-bottom: 34px; }
.section-head h2 { font-family: var(--serif); font-size: 28px; margin: 0; }
.section-head p { color: var(--muted); font-size: 12px; margin: 0; }
.book-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.book-card { background: rgba(255, 251, 243, .47); border: 1px solid var(--line); padding: 15px; transition: transform .25s, box-shadow .25s; }
.book-card:hover { transform: translateY(-4px); box-shadow: 0 13px 30px rgba(94, 63, 38, .1); }
.cover { height: 240px; position: relative; overflow: hidden; padding: 22px; display: flex; flex-direction: column; justify-content: space-between; color: #f8edda; }
.cover-1 { background: linear-gradient(145deg, #253536, #66705f 60%, #a74432); }
.cover-2 { background: linear-gradient(145deg, #7b2735, #d07758 58%, #f2b66d); }
.cover-3 { background: linear-gradient(145deg, #24384c, #395f7a 58%, #d5b16b); }
.cover-4 { background: linear-gradient(145deg, #2e2a44, #6b5c93 56%, #c9a86a); }
.cover-5 { background: linear-gradient(145deg, #1f3a34, #4f7a6c 56%, #e0b36b); }
.cover::after { content: ""; position: absolute; width: 170px; height: 170px; right: -30px; bottom: -40px; border: 1px solid rgba(255,255,255,.33); border-radius: 50%; box-shadow: 0 0 0 22px rgba(255,255,255,.08), 0 0 0 44px rgba(255,255,255,.06); }
.cover-tag { font-size: 10px; letter-spacing: .2em; opacity: .85; }
.cover h3 { font-family: var(--serif); font-size: 27px; line-height: 1.3; letter-spacing: .05em; margin: 0; max-width: 180px; z-index: 1; }
.cover-author { font-size: 11px; z-index: 1; }
.book-info { padding: 17px 3px 4px; }
.book-info h3 { font-family: var(--serif); font-size: 18px; margin: 0 0 8px; }
.book-info p { color: var(--muted); font-size: 12px; line-height: 1.9; min-height: 43px; margin: 0 0 13px; }
.book-meta { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 11px; }
.book-meta span:first-child { color: var(--red); }
.book-open { color: var(--red-dark); border: 0; background: none; font-size: 12px; padding: 0; }
.about-band { background: #293332; color: #f4e9d6; padding: 60px max(34px, calc((100% - 1172px) / 2)); display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; }
.about-band h2 { font-family: var(--serif); font-size: 30px; line-height: 1.4; margin: 0; }
.about-band p { color: rgba(244,233,214,.67); font-size: 14px; line-height: 2; max-width: 560px; margin: 0; }
.site-footer { max-width: 1240px; margin: auto; border-top: 1px solid var(--line); padding: 25px 34px 35px; display: flex; align-items: center; gap: 18px; color: var(--muted); font-size: 11px; }
.footer-brand { display: flex; align-items: center; gap: 8px; color: var(--ink); font-family: var(--serif); font-size: 14px; }
.footer-note { margin-left: auto; }
.reader-shell { max-width: 920px; margin: auto; padding: 66px 34px 100px; }
.reader-top { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding-bottom: 19px; color: var(--muted); font-size: 12px; }
.reader-top a { color: var(--red); text-decoration: none; }
.chapter-picker { display: flex; align-items: center; gap: 9px; }
.chapter-picker select { max-width: 235px; border: 1px solid var(--line); background: rgba(255, 251, 243, .72); color: var(--ink); padding: 7px 28px 7px 9px; font-size: 11px; outline: 0; }
.reader-title { font-family: var(--serif); font-size: 34px; margin: 46px 0 10px; }
.reader-subtitle { color: var(--muted); font-size: 13px; margin: 0 0 48px; }
.book-intro { margin: 0 0 44px; padding: 20px 24px; background: rgba(255, 251, 243, .52); border: 1px solid var(--line); border-radius: 8px; }
.book-intro-label { font-family: var(--sans); font-size: 11px; color: var(--red); letter-spacing: .25em; margin: 0 0 10px; }
.book-intro p { font-family: var(--sans); font-size: 13.5px; line-height: 2; color: var(--muted); margin: 0; }
.reader-content { font-family: var(--serif); font-size: 18px; line-height: 2.25; letter-spacing: .035em; }
.reader-content p { margin: 0 0 24px; }
.reader-content h2.md-h2 { font-family: var(--serif); font-size: 22px; color: var(--ink); margin: 44px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); }
.reader-content h2.md-h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.reader-content h3.md-h3 { font-family: var(--serif); font-size: 18px; color: var(--ink); margin: 30px 0 10px; }
.md-table-wrap { margin: 22px 0; overflow-x: auto; }
.reader-content table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 14px; background: rgba(255, 251, 243, .47); border: 1px solid var(--line); }
.reader-content th, .reader-content td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.reader-content tbody th.k { color: var(--muted); font-weight: 600; white-space: nowrap; background: rgba(255, 251, 243, .35); width: 92px; }
.reader-content thead th { font-family: var(--sans); font-size: 12px; letter-spacing: .08em; color: var(--muted); }
.reader-content blockquote { margin: 20px 0; padding: 4px 18px; border-left: 3px solid var(--red); color: var(--ink); font-family: var(--serif); }
.reader-content hr { border: 0; border-top: 1px dashed var(--line); margin: 26px 0; }
.chapter-nav { display: flex; justify-content: space-between; border-top: 1px solid var(--line); margin-top: 60px; padding-top: 22px; }
.chapter-nav button { background: none; border: 0; color: var(--red-dark); font-size: 13px; }
.chapter-nav button:disabled { color: #bcb2a5; cursor: default; }
.paywall { background: #e9dfd1; margin: 34px -40px 0; padding: 38px 40px; text-align: center; position: relative; }
.paywall::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, transparent, rgba(233,223,209,.9)); }
.paywall > * { position: relative; }
.lock-icon { width: 38px; height: 38px; display: grid; place-items: center; margin: 0 auto 13px; border: 1px solid var(--red); color: var(--red); border-radius: 50%; font-size: 18px; }
.paywall h3 { font-family: var(--serif); font-size: 22px; margin: 0 0 8px; }
.paywall p { color: var(--muted); font-family: var(--sans); font-size: 12px; margin: 0 0 20px; }
.paywall .primary-button { padding: 12px 24px; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(26, 28, 27, .58); display: grid; place-items: center; z-index: 20; padding: 20px; }
.hidden { display: none !important; }
.payment-modal { width: min(410px, 100%); background: var(--paper); padding: 35px 38px 28px; text-align: center; position: relative; box-shadow: 0 25px 80px rgba(0,0,0,.25); }
.modal-close { position: absolute; top: 10px; right: 15px; border: 0; background: none; font-size: 25px; color: var(--muted); }
.payment-kicker { color: var(--red); letter-spacing: .2em; font-size: 10px; margin-bottom: 13px; }
.payment-modal h2 { font-family: var(--serif); font-size: 23px; margin: 0 0 10px; }
.payment-desc { color: var(--muted); font-size: 12px; margin: 0; }
.price-line { display: flex; align-items: baseline; justify-content: center; gap: 10px; margin: 23px 0 17px; }
.price-line strong { color: var(--red); font-size: 30px; font-weight: 600; }
.price-line span { color: var(--muted); font-size: 11px; }
.qr-wrap { width: 155px; height: 155px; background: #fff; margin: auto; padding: 10px; position: relative; }
.demo-qr { width: 100%; height: 100%; background: repeating-conic-gradient(#292929 0 8%, #fff 0 16%); opacity: .84; position: relative; }
.demo-qr::before, .demo-qr::after { content: ""; position: absolute; width: 37px; height: 37px; border: 8px solid #292929; background: #fff; top: 5px; left: 5px; box-shadow: 72px 0 0 -8px #fff, 72px 0 0 0 #292929, 0 72px 0 -8px #fff, 0 72px 0 0 #292929; }
.demo-qr::after { content: "演示"; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 34px; height: 22px; background: #fff; border: 0; box-shadow: none; font-family: var(--sans); color: var(--red); font-size: 10px; display: grid; place-items: center; }
.qr-corner { display: none; }
.wechat-line { display: flex; justify-content: center; align-items: center; gap: 7px; font-size: 12px; margin: 17px 0 10px; }
.wechat-dot { width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: #19a768; color: white; font-size: 10px; }
.demo-warning { background: #efe3d2; color: var(--red-dark); font-size: 11px; padding: 8px; margin-bottom: 14px; }
.full { width: 100%; }
.payment-footnote { color: var(--muted); font-size: 10px; line-height: 1.7; margin: 17px 0 0; }
.search-box { max-width: 1240px; margin: 20px auto -45px; padding: 0 34px; position: relative; z-index: 3; }
.search-box input { width: 100%; border: 1px solid var(--line); background: rgba(255,251,243,.8); padding: 14px 16px; outline: 0; color: var(--ink); }

@media (max-width: 800px) {
  .site-header { padding: 18px 20px; }
  .main-nav { margin-left: 0; gap: 18px; }
  .reader-button { display: none; }
  .hero { grid-template-columns: 1fr; padding: 60px 20px 35px; gap: 20px; }
  .hero-art { min-height: 260px; order: -1; transform: scale(.8); margin: -35px 0; }
  .section { padding: 25px 20px 70px; }
  .book-grid { grid-template-columns: 1fr; gap: 16px; }
  .cover { height: 210px; }
  .about-band { display: block; padding: 45px 20px; }
  .about-band p { margin-top: 25px; }
  .site-footer { margin: 0 20px; padding: 20px 0 30px; flex-wrap: wrap; }
  .footer-note { margin-left: 0; width: 100%; }
  .reader-shell { padding: 45px 20px 70px; }
  .reader-top { align-items: flex-start; gap: 12px; }
  .chapter-picker { display: block; text-align: right; }
  .chapter-picker span { display: block; margin-bottom: 5px; }
  .chapter-picker select { max-width: 150px; }
  .reader-title { font-size: 28px; margin-top: 33px; }
  .reader-content { font-size: 17px; }
  .paywall { margin-left: -20px; margin-right: -20px; padding: 32px 20px; }
  .header-actions { gap: 8px; }
}