:root {
  --paper: #F6F1E6;
  --paper-deep: #EDE4D3;
  --white: #FFFFFF;
  --ink: #1C2333;
  --ink-soft: #4A5163;
  --ink-mute: #C9C2B3;
  --enamel: #1D4E9E;
  --enamel-dark: #163B78;
  --gold: #B8892F;
  --gold-light: #E5C779;
  --coral: #E2674B;
  --gum: #5E8C6A;
  --wattle: #F2B930;
  --line: #D9CDB6;
  --display: "Young Serif", Georgia, serif;
  --body: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --pad: clamp(16px, 4.4vw, 64px);
  --max: 1312px;
  --radius: 6px;
}
:lang(zh) {
  --display: "Young Serif", "Noto Serif SC", "Songti SC", serif;
  --body: "Figtree", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.55; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; margin: 0; line-height: 1.06; letter-spacing: -0.01em; }
p { margin: 0; }
.wrap { width: 100%; max-width: calc(var(--max) + 2 * var(--pad)); margin: 0 auto; padding: 0 var(--pad); }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); }
.muted { color: var(--ink-soft); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--white); padding: 8px 12px; z-index: 99; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 999px; padding: 16px 28px; font: 600 17px/1 var(--body); text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: background .15s, transform .15s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--enamel); color: var(--white); }
.btn-primary:hover { background: var(--enamel-dark); }
.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--white); }
.btn-paper { background: var(--paper); color: var(--enamel); }
.btn svg { width: 18px; height: 18px; }
.link { font-weight: 600; color: var(--enamel); text-underline-offset: 4px; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

/* Announcement + nav */
.announce { background: var(--ink); color: var(--paper); font-size: 14px; text-align: center; padding: 10px var(--pad); }
.announce a { color: var(--gold-light); }
.nav { position: sticky; top: 0; z-index: 30; background: rgba(246, 241, 230, .94); backdrop-filter: blur(8px); border-bottom: 1px solid transparent; }
.nav.scrolled { border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 18px; padding-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-size: 25px; white-space: nowrap; }
.brand img { width: 34px; height: 34px; }
.nav-links { display: flex; gap: 32px; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-weight: 500; font-size: 16px; }
.nav-links a:hover { color: var(--enamel); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.lang { border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px; font-size: 14px; text-decoration: none; white-space: nowrap; }
.lang b { font-weight: 700; }
.lang span { color: var(--ink-soft); }
.nav .btn { padding: 12px 20px; font-size: 16px; }
.menu-btn { display: none; background: none; border: 0; padding: 6px; cursor: pointer; }
.menu-btn svg { width: 26px; height: 26px; }

/* Hero */
.hero { display: grid; grid-template-columns: 600px 1fr; gap: 56px; align-items: center; padding-top: 40px; padding-bottom: 72px; }
.hero h1 { font-size: clamp(40px, 5.2vw, 72px); line-height: 1.02; margin: 24px 0; }
.hero .lede { font-size: 20px; color: var(--ink-soft); max-width: 34em; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 18px; }
.price-line { font-size: 15px; color: var(--ink-soft); }
.hero-media { position: relative; height: 620px; border-radius: var(--radius); overflow: hidden; background: var(--paper-deep); }
.hero-media > img { width: 100%; height: 100%; object-fit: cover; }
.piece { position: absolute; left: 28px; bottom: 28px; width: 230px; aspect-ratio: 1; background: var(--white); padding: 16px; border-radius: 4px; transform: rotate(-4deg); box-shadow: 0 12px 30px rgba(28, 35, 51, .2); }
.piece img { width: 100%; height: 100%; object-fit: contain; }

.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust ul { display: flex; justify-content: space-between; gap: 24px; list-style: none; margin: 0; padding-top: 22px; padding-bottom: 22px; }
.trust li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--ink-soft); }
.trust svg { width: 20px; height: 20px; flex: none; color: var(--gold); }

/* Sections */
section { scroll-margin-top: 80px; }
.sec { padding-top: 104px; padding-bottom: 104px; }
.sec-head { max-width: 760px; margin-bottom: 48px; }
.sec-head h2, .split h2 { font-size: clamp(34px, 3.8vw, 52px); margin: 14px 0 16px; }
.sec-head p { font-size: 19px; color: var(--ink-soft); }

.how { background: var(--ink); color: var(--paper); }
.how-head { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: 56px; }
.how-head h2 { font-size: clamp(34px, 3.8vw, 52px); }
.how-head p { text-align: right; color: var(--ink-mute); font-size: 18px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); }
.step { padding: 0 32px; border-left: 1px solid var(--gold); }
.step:first-child { padding-left: 0; border-left: 0; }
.step:last-child { padding-right: 0; }
.step figure { margin: 0 0 20px; height: 300px; border-radius: 4px; overflow: hidden; background: #2A3245; }
.step figure img { width: 100%; height: 100%; object-fit: cover; }
.step .num { font-family: var(--display); font-size: 22px; color: var(--gold-light); }
.step h3 { font-size: 30px; margin: 14px 0 12px; }
.step p { color: var(--ink-mute); }

/* Parties */
.options { display: grid; grid-template-columns: 1fr 440px; gap: 32px; align-items: start; }
.pkg { background: var(--white); border: 1.5px solid var(--gold); border-radius: var(--radius); padding: 48px; }
.pkg-top { display: flex; justify-content: space-between; align-items: start; gap: 16px; }
.pkg h3 { font-size: 36px; }
.amount { font-family: var(--display); font-size: 48px; color: var(--enamel); line-height: 1; text-align: right; }
.per { font-size: 15px; color: var(--ink-soft); text-align: right; margin-top: 6px; }
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; list-style: none; margin: 28px 0; padding: 0; }
.checks li { display: flex; gap: 10px; align-items: center; }
.checks svg { width: 18px; height: 18px; flex: none; color: var(--gum); }
.addon { display: flex; gap: 14px; align-items: center; background: var(--paper); border-radius: 4px; padding: 18px 20px; margin-bottom: 28px; font-size: 16px; }
.addon svg { width: 20px; height: 20px; flex: none; color: var(--gold); }
.small { font-size: 14px; color: var(--ink-soft); margin-top: 14px; }
.box { background: var(--paper-deep); border-radius: var(--radius); padding: 36px; }
.box h3 { font-size: 30px; margin-bottom: 12px; }
.rows { margin: 16px 0; }
.rows div { display: flex; justify-content: space-between; padding: 10px 0; border-top: 1px solid var(--line); }
.rows b { font-weight: 600; }
.facts { list-style: none; padding: 0 4px; margin: 28px 0 0; color: var(--ink-soft); font-size: 15px; display: grid; gap: 10px; }

/* Designs */
.designs { background: var(--white); }
.split { display: grid; grid-template-columns: 600px 1fr; gap: 72px; align-items: center; }
.split > img, .split .art { width: 100%; aspect-ratio: 1; object-fit: contain; }
.sets { margin-top: 24px; }
.set { display: flex; gap: 18px; align-items: center; padding: 18px 0; border-top: 1px solid var(--line); }
.swatch { width: 16px; height: 16px; border-radius: 50%; flex: none; }
.set b { display: block; font-size: 20px; font-weight: 600; }
.set span { font-size: 15px; color: var(--ink-soft); }

/* Workshops */
.workshops .split { grid-template-columns: 620px 1fr; gap: 64px; }
.photo { border-radius: var(--radius); overflow: hidden; background: var(--paper-deep); }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.workshops .photo { height: 560px; }
.price-table { margin: 24px 0 28px; }
.price-table div { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 16px 0; border-top: 1px solid var(--line); }
.price-table b { display: block; font-size: 19px; font-weight: 600; }
.price-table span { font-size: 15px; color: var(--ink-soft); }
.price-table em { font-style: normal; font-family: var(--display); font-size: 26px; white-space: nowrap; }

/* Portraits */
.portraits { background: var(--paper-deep); }
.portraits .split { grid-template-columns: 520px 1fr; gap: 64px; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: end; }
.duo .photo { height: 440px; }
.duo .drawn { height: 520px; background: var(--white); border: 1.5px solid var(--gold); border-radius: var(--radius); padding: 28px; display: grid; place-items: center; }
.duo .drawn img { width: 100%; height: 100%; object-fit: contain; }
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0 28px; }
.choice div { background: var(--paper); border-radius: 4px; padding: 20px; }
.choice em { font-style: normal; font-family: var(--display); font-size: 30px; color: var(--enamel); display: block; }
.choice b { display: block; font-weight: 600; margin: 6px 0 4px; }
.choice span { font-size: 14px; color: var(--ink-soft); }

/* Schools */
.schools { display: grid; grid-template-columns: 1fr 1fr 360px; gap: 32px; align-items: center; }
.school { border-left: 2px solid var(--gold); padding-left: 28px; display: grid; gap: 14px; }
.school h3 { font-size: 38px; }
.school .p { font-weight: 600; font-size: 19px; }

/* Makers */
.makers { background: var(--paper-deep); }
.makers .split { grid-template-columns: 520px 1fr; gap: 64px; }
.makers .photo { height: 600px; }
.makers p { font-size: 19px; color: var(--ink-soft); }
.makers p + p { margin-top: 16px; }

/* FAQ */
.faq { display: grid; grid-template-columns: 400px 1fr; gap: 72px; }
.faq h2 { font-size: clamp(34px, 3.4vw, 46px); margin-bottom: 16px; }
details { border-top: 1px solid var(--line); padding: 24px 0; }
details:last-child { border-bottom: 1px solid var(--line); }
summary { list-style: none; display: flex; justify-content: space-between; gap: 16px; font-size: 21px; font-weight: 600; cursor: pointer; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-weight: 400; font-size: 26px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin-top: 12px; color: var(--ink-soft); max-width: 46em; }

/* Closing + footer */
.closing { background: var(--enamel); color: var(--white); text-align: center; }
.closing img { width: 56px; height: 56px; margin: 0 auto 24px; filter: brightness(1.6); }
.closing h2 { font-size: clamp(34px, 3.8vw, 52px); }
.closing p { color: #D8E2F5; font-size: 19px; margin: 16px 0 28px; }
footer { background: var(--ink); color: var(--paper); padding: 72px 0 40px; }
.foot-top { display: grid; grid-template-columns: 360px repeat(3, 1fr); gap: 48px; }
.foot-top .brand { font-size: 30px; margin-bottom: 14px; }
.foot-top p { color: var(--ink-mute); font-size: 16px; }
.foot-top h4 { font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: var(--gold-light); margin: 0 0 14px; font-weight: 600; }
.foot-top ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.foot-top a { text-decoration: none; }
.foot-top a:hover { text-decoration: underline; }
.areas { color: var(--ink-mute); font-size: 15px; margin: 48px 0; }
.foot-bottom { display: flex; justify-content: space-between; gap: 32px; border-top: 1px solid #3A4256; padding-top: 24px; color: #9A9384; font-size: 14px; }
.foot-bottom p:first-child { max-width: 760px; }

.sticky-book { display: none; }

/* Responsive */
@media (max-width: 1180px) {
  .nav-links { gap: 22px; }
  .hero { grid-template-columns: 1fr 1fr; }
  .split, .workshops .split, .portraits .split, .makers .split { grid-template-columns: 1fr 1fr; gap: 48px; }
  .options { grid-template-columns: 1fr 360px; }
  .schools { grid-template-columns: 1fr 1fr; }
  .schools .goat { display: none; }
  .foot-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 980px) {
  .nav-links, .nav-actions .btn { display: none; }
  .menu-btn { display: block; }
  .nav.open .nav-links { display: grid; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); padding: 8px var(--pad) 24px; gap: 0; border-bottom: 1px solid var(--line); }
  .nav.open .nav-links a { display: block; padding: 14px 0; font-size: 19px; border-top: 1px solid var(--line); }
  .hero { grid-template-columns: 1fr; gap: 0; padding-top: 0; padding-bottom: 36px; }
  .hero-media { order: -1; height: 320px; margin: 0 calc(-1 * var(--pad)); border-radius: 0; }
  .hero-copy { padding-top: 28px; }
  .piece { width: 130px; left: 16px; bottom: 16px; padding: 10px; }
  .hero h1 { margin: 18px 0; }
  .hero .lede { font-size: 17px; }
  .hero-ctas .btn-primary { flex: 1 1 100%; }
  .trust ul { display: grid; grid-template-columns: 1fr; gap: 12px; }
  .sec { padding-top: 64px; padding-bottom: 64px; }
  .how-head { display: block; }
  .how-head p { text-align: left; margin-top: 14px; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .step, .step:first-child { padding: 0; border-left: 0; }
  .step figure { height: 220px; }
  .options { grid-template-columns: 1fr; }
  .pkg { padding: 24px; }
  .pkg h3 { font-size: 28px; }
  .amount { font-size: 36px; }
  .checks { grid-template-columns: 1fr; }
  .split, .workshops .split, .portraits .split, .makers .split { grid-template-columns: 1fr; gap: 32px; }
  .workshops .photo, .makers .photo { height: 320px; }
  .duo .photo { height: 240px; }
  .duo .drawn { height: 280px; padding: 14px; }
  .choice { grid-template-columns: 1fr; }
  .schools { grid-template-columns: 1fr; gap: 40px; }
  .faq { grid-template-columns: 1fr; gap: 24px; }
  summary { font-size: 18px; }
  .foot-top { grid-template-columns: 1fr; gap: 32px; }
  .foot-bottom { flex-direction: column; }
  .sticky-book { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; gap: 12px; align-items: center; background: var(--white); border-top: 1px solid var(--line); padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); }
  .sticky-book div { flex: 1; font-size: 12px; color: var(--ink-soft); }
  .sticky-book b { display: block; font-size: 16px; color: var(--ink); }
  .sticky-book .btn { padding: 13px 20px; font-size: 15px; }
  body.has-sticky { padding-bottom: 76px; }
}
@media (max-width: 420px) {
  .brand { font-size: 20px; }
  .brand img { width: 26px; height: 26px; }
  .announce { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
