:root {
  --ink: #221a16;
  --muted: #6c6256;
  --primary: #ffca18;
  --primary-soft: #fff3c7;
  --paper: #fffefa;
  --cream: #fffcf4;
  --line: #e7decd;
  --border: #d9ceb9;
  --accent-text: #796121;
  --radius: 20px;
  --section-space: 64px;
  --ease: cubic-bezier(.22, .68, 0, 1);
  --quick: 160ms;
  --motion: 240ms;
  --stroke: 1.5px solid var(--ink);
  --shadow: 3px 3px 0 #e9dfc9;
  --shadow-hover: 4px 7px 0 #e9dfc9;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
::selection { color: var(--ink); background: var(--primary-soft); }
a { color: inherit; text-decoration: none; touch-action: manipulation; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
.container, .header-inner { width: min(100% - 48px, 1160px); margin-inline: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-weight: 800; text-wrap: balance; }
h1 { margin-bottom: 24px; font-size: clamp(44px, 4.3vw, 62px); line-height: 1.24; letter-spacing: -.03em; }
h2 { margin-bottom: 12px; font-size: clamp(28px, 2.7vw, 36px); line-height: 1.35; letter-spacing: -.025em; }
h3 { margin-bottom: 8px; font-size: 22px; line-height: 1.35; }
.site-header { position: sticky; top: 0; z-index: 10; background: var(--cream); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; flex: none; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; white-space: nowrap; }
.brand-logo { width: 48px; height: 48px; object-fit: contain; border: 1.5px solid var(--ink); border-radius: 14px; background: var(--paper); box-shadow: 3px 3px 0 #eadba8; }
.main-nav { display: flex; align-items: center; gap: clamp(14px, 1.8vw, 26px); font-size: 14px; font-weight: 700; white-space: nowrap; }
.main-nav a { position: relative; isolation: isolate; display: inline-flex; align-items: center; min-height: 44px; }
.main-nav a::after { content: ""; position: absolute; z-index: -1; inset: auto 0 9px; height: 5px; border-radius: 3px; background: var(--primary); transform: scaleX(0); transform-origin: left; transition: transform var(--motion) var(--ease); }
.main-nav a:focus-visible::after { transform: scaleX(1); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 26px; border: var(--stroke); border-radius: 999px; font-size: 16px; font-weight: 750; text-align: center; white-space: nowrap; box-shadow: 2px 2px 0 var(--ink); }
.button-primary, .button-header { color: var(--ink); background: var(--primary); }
.button:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.button-header { flex: none; min-width: 92px; min-height: 40px; padding-inline: 16px; font-size: 14px; }
.section { padding: var(--section-space) 0; }
.hero { position: relative; isolation: isolate; overflow: hidden; padding-top: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--line); background: radial-gradient(ellipse at 75% 55%, #fff8df, transparent 46%), var(--paper); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); align-items: center; gap: clamp(40px, 4.5vw, 64px); }
.hero-copy { max-width: 615px; }
.hero h1 span:first-child { display: inline; font-size: 1.16em; line-height: 1.12; background: linear-gradient(transparent 76%, var(--primary) 76%, var(--primary) 94%, transparent 94%); }
.hero-lead, .section-heading > p { color: var(--muted); font-size: 16px; line-height: 1.85; }
.hero-lead { max-width: 490px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; }
.hero-actions .button-primary { min-width: 300px; min-height: 58px; font-size: 18px; }
.hero-media { position: relative; isolation: isolate; width: 100%; max-width: 560px; aspect-ratio: 1 / 1.12; margin-inline: auto; }
.hero-phone { position: absolute; z-index: 2; height: 96.0406%; width: auto; max-width: none; left: 3.3766%; top: 2.4365%; filter: drop-shadow(5px 12px 10px rgba(34, 26, 22, .14)); }
.hero-note { position: absolute; z-index: 1; width: 47.9216%; height: auto; top: 21.3173%; right: 2.0392%; transform: rotate(8deg); }
.section-heading { max-width: 750px; margin-bottom: 32px; }
.section-heading > p { margin-bottom: 0; }
.section-heading h2 { position: relative; display: inline-block; }
.section-heading h2::after { content: ""; display: inline-block; width: 16px; height: 16px; margin-left: 12px; vertical-align: middle; background: var(--primary); clip-path: polygon(50% 0, 62% 37%, 100% 50%, 62% 62%, 50% 100%, 37% 62%, 0 50%, 37% 37%); }
.discovery-composition { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 40px; align-items: stretch; }
.discovery-finder { display: flex; flex-direction: column; min-width: 0; padding: 6px 0 0; }
.finder-lead { margin-bottom: 16px; font-size: 22px; font-weight: 750; }
.search-preview { min-height: 58px; display: grid; grid-template-columns: 20px minmax(0, 1fr); align-items: center; gap: 12px; padding: 12px 20px; border: var(--stroke); border-radius: 999px; color: var(--muted); background: var(--paper); box-shadow: var(--shadow); }
.search-preview svg { width: 20px; height: 20px; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; }
.discovery-media { align-self: center; width: min(100%, 455px); height: auto; max-height: 360px; aspect-ratio: 560 / 404; object-fit: contain; margin-top: auto; }
.mood-list { display: flex; flex-direction: column; gap: 12px; }
.mood-list-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 6px 6px 10px; }
.mood-list-head strong { font-size: 20px; }
.mood-list-head span { color: var(--muted); font-size: 13px; }
.mood-row { display: grid; grid-template-columns: 40px 56px minmax(0, 1fr); align-items: center; gap: 16px; min-height: 92px; padding: 10px 16px 10px 12px; border-radius: 16px; background: var(--paper); box-shadow: var(--shadow); }
.mood-number { display: grid; place-items: center; align-self: center; width: 34px; height: 34px; border: 1px solid #cbbb8c; border-radius: 50%; color: var(--ink); background: var(--primary-soft); font-size: 13px; font-weight: 750; }
.mood-row > img { width: 58px; height: 72px; object-fit: cover; border-radius: 10px; background: var(--paper); }
.mood-row > img.mood-cover-art { object-position: 52% 48%; }
.mood-row h3 { margin-bottom: 3px; font-size: clamp(17px, 1.5vw, 21px); line-height: 1.25; }
.mood-row p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.highlights-section { position: relative; background: radial-gradient(ellipse at 50% 55%, #fff5d6, var(--cream) 72%); }
.highlights-heading { max-width: 750px; }
.highlight-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.highlight-card { display: flex; flex-direction: column; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--paper); box-shadow: var(--shadow); }
.highlight-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 28px; border: 1px solid var(--border); border-radius: 16px; color: var(--ink); background: #f5f2eb; }
.highlight-icon svg { width: 30px; height: 30px; stroke: currentColor; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.highlight-card h3 { margin-bottom: 12px; font-size: 22px; line-height: 1.45; }
.highlight-card > p:last-child { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.manga-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.manga-item { position: relative; display: grid; grid-template-columns: 120px minmax(0, 1fr); align-items: start; gap: 24px; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--paper); box-shadow: var(--shadow); }
.manga-cover { width: 122px; height: 178px; object-fit: cover; background: var(--paper); border: var(--stroke); border-radius: 10px; box-shadow: 3px 3px 0 #e5d9c0; }
.manga-cover-art { object-fit: cover; object-position: 52% 48%; }
.manga-cover-avian { object-position: left center; }
.manga-copy { min-width: 0; }
.manga-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 7px 14px; margin-bottom: 10px; color: var(--muted); font-size: 12px; font-weight: 700; }
.manga-meta span:first-child { padding: 3px 10px; border: 1px solid var(--ink); border-radius: 999px; color: var(--ink); background: var(--primary-soft); }
.manga-copy h3 { margin-bottom: 12px; font-size: 22px; line-height: 1.35; }
.manga-copy p { margin-bottom: 16px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.faq-container { max-width: 1160px; display: grid; grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr); gap: 64px; }
.faq-container .section-heading { margin-bottom: 0; }
.faq-list { display: grid; gap: 14px; }
.faq-list details { border: 1px solid var(--border); border-radius: 16px; background: var(--paper); transition: background var(--motion) ease, border-color var(--motion) ease, box-shadow var(--motion) ease; }
.faq-list details[open] { border-color: #bca665; background: var(--primary-soft); box-shadow: var(--shadow); }
.faq-list summary { position: relative; display: flex; align-items: center; min-height: 72px; padding: 20px 66px 20px 24px; font-size: 17px; font-weight: 700; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-toggle { position: absolute; right: 20px; top: 50%; width: 30px; height: 30px; transform: translateY(-50%); border: 1px solid var(--ink); border-radius: 50%; background: var(--primary); }
.faq-toggle::before, .faq-toggle::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; border-radius: 2px; background: var(--ink); transform: translate(-50%, -50%); }
.faq-toggle::after { transform: translate(-50%, -50%) rotate(90deg); transition: opacity 160ms ease, transform 160ms ease; }
.faq-list details[open] .faq-toggle::after { opacity: 0; transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { max-width: 760px; margin: 0; padding: 0 66px 26px 24px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.download-section { padding: var(--section-space) 0; background: var(--cream); }
.download-panel { display: flex; flex-direction: column; align-items: center; gap: 28px; padding: 48px 28px 44px; border: 1px solid var(--border); border-radius: 28px; background: #fff8e9; box-shadow: 0 12px 28px rgba(65, 45, 10, .06); text-align: center; }
.download-product { min-width: 0; }
.download-identity { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.download-app-logo { width: 112px; height: 112px; object-fit: contain; border-radius: 28px; background: white; box-shadow: 0 10px 28px rgba(121, 97, 33, .08); }
.download-identity h2 { margin: 0 0 12px; font-size: 36px; }
.download-description { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.8; }
.download-access { width: min(100%, 420px); }
.download-access .button-primary { width: 100%; min-height: 58px; font-size: 18px; }
.download-icon { width: 22px; height: 22px; flex: none; margin-right: 12px; }
.site-footer { color: var(--ink); background: var(--cream); border-top: 1px solid var(--line); }
.footer-main { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 64px; padding-top: 56px; padding-bottom: 36px; }
.footer-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.footer-links > div { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-links h2 { margin-bottom: 9px; color: var(--ink); font-size: 16px; font-weight: 750; letter-spacing: 0; }
.footer-links a { display: inline-flex; align-items: center; min-height: 36px; color: var(--muted); font-size: 15px; transition: color var(--quick) ease, transform var(--motion) var(--ease); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 20px; padding-bottom: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.button { transition: transform var(--quick) var(--ease), box-shadow var(--quick) var(--ease), background var(--quick) ease; }
.highlight-card, .manga-item, .mood-row { transition: transform var(--motion) var(--ease), box-shadow var(--motion) var(--ease), background var(--motion) ease; }
.highlight-icon, .manga-cover, .brand-logo { transition: transform var(--motion) var(--ease); }
.faq-list details[open] p { animation: answer-in 220ms var(--ease) both; }
@keyframes answer-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
@media (hover: hover) and (pointer: fine) {
  .main-nav a:hover::after { transform: scaleX(1); }
  .button:hover { transform: translateY(-2px); box-shadow: 2px 4px 0 var(--ink); }
  .button:active { transform: translateY(1px); box-shadow: 1px 1px 0 var(--ink); }
  .highlight-card:hover, .manga-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
  .highlight-card:hover { background: #fff9e6; }
  .highlight-card:hover .highlight-icon { transform: rotate(-5deg); background: var(--primary); border-color: var(--ink); }
  .manga-item:hover .manga-cover { transform: rotate(-2deg); }
  .mood-row:hover { transform: translateX(3px); background: var(--primary-soft); }
  .faq-list details:hover { border-color: #bca665; }
  .footer-links a:hover { color: var(--ink); transform: translateX(3px); text-decoration: underline; text-decoration-color: var(--primary); text-underline-offset: 5px; }
}
body:has(#home:target) .main-nav a[href="#home"]::after,
body:has(#discover:target) .main-nav a[href="#discover"]::after,
body:has(#highlights:target) .main-nav a[href="#highlights"]::after,
body:has(#reading:target) .main-nav a[href="#reading"]::after,
body:has(#faq:target) .main-nav a[href="#faq"]::after { transform: scaleX(1); }
@media (max-width: 900px) {
  :root { --section-space: 52px; }
  .hero-grid, .discovery-composition { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .discovery-finder, .mood-list { min-width: 0; }
  .hero { padding-top: 56px; }
  .highlight-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .highlight-card { min-height: 0; }
  .footer-main { gap: 36px; }
  .faq-container { grid-template-columns: minmax(0, 1fr); gap: 32px; }
}
@media (max-width: 860px) {
  .main-nav { display: none; }
  .header-inner { min-height: 72px; }
  .brand { font-size: 19px; }
  .brand-logo { width: 44px; height: 44px; border-radius: 13px; }
}
@media (max-width: 720px) {
  .manga-list { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 72px; }
  .container, .header-inner { width: min(100% - 36px, 1160px); }
  .header-inner { min-height: 64px; gap: 12px; }
  .brand { gap: 5px; font-size: 16px; }
  .brand-logo { width: 38px; height: 38px; border-radius: 11px; box-shadow: 2px 2px 0 #eadba8; }
  .button-header { min-width: 82px; min-height: 36px; padding: 0 14px; font-size: 13px; box-shadow: 2px 2px 0 var(--ink); }
  :root { --section-space: 44px; }
  .hero { padding-top: 48px; padding-bottom: 56px; }
  h1 { font-size: clamp(36px, 10vw, 46px); }
  h2 { font-size: 28px; }
  .hero-lead, .section-heading > p { font-size: 16px; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .button { width: 100%; min-width: 0; }
  .section-heading { margin-bottom: 32px; }
  .section-heading h2::after { width: 14px; height: 14px; margin-left: 10px; }
  .discovery-finder { padding: 0; }
  .finder-lead { font-size: 21px; }
  .discovery-media { width: min(100%, 440px); max-height: none; margin-top: 16px; }
  .mood-list-head { padding-inline: 2px; }
  .mood-row { grid-template-columns: 34px 50px minmax(0, 1fr); gap: 10px; min-height: 84px; padding: 8px 10px; border-radius: 16px; }
  .mood-number { width: 32px; height: 32px; font-size: 12px; }
  .mood-row > img { width: 50px; height: 64px; border-radius: 8px; }
  .mood-row h3 { font-size: 17px; }
  .mood-row p { font-size: 13px; }
  .highlights-heading { text-align: left; }
  .highlight-card { padding: 24px; }
  .highlight-icon { margin-bottom: 22px; }
  .manga-list { gap: 16px; }
  .manga-item { grid-template-columns: 96px minmax(0, 1fr); gap: 16px; min-height: 0; padding: 18px; border-radius: 18px; }
  .manga-cover { width: 96px; height: 140px; }
  .manga-copy h3 { margin-bottom: 8px; font-size: 22px; }
  .manga-copy p { margin-bottom: 12px; font-size: 16px; line-height: 1.75; }
  .manga-meta { gap: 5px 10px; margin-bottom: 8px; font-size: 12px; }
  .manga-meta span:first-child { padding: 2px 7px; }
  .faq-list summary { padding: 18px 56px 18px 18px; font-size: 16px; }
  .faq-toggle { right: 16px; }
  .faq-list details p { padding: 0 24px 24px 18px; }
  .download-panel { gap: 24px; padding: 36px 18px 32px; border-radius: 22px; }
  .download-app-logo { width: 88px; height: 88px; border-radius: 22px; }
  .download-identity h2 { font-size: 30px; }
  .download-description { font-size: 16px; }
  .footer-main { grid-template-columns: minmax(0, 1fr); padding-top: 52px; padding-bottom: 38px; }
  .footer-links { gap: 12px; }
  .footer-links a { min-height: 44px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .button, .highlight-card, .highlight-icon, .manga-item, .manga-cover, .mood-row, .brand-logo, .footer-links a { transform: none !important; }
}