:root {
  --ink: #11110f;
  --ink-soft: #34322e;
  --paper: #f7f3ec;
  --paper-deep: #ebe3d6;
  --muted: #68635d;
  --red: #b8201c;
  --white: #fffaf1;
  --line: rgba(17, 17, 15, 0.14);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); }
button, input, textarea { font: inherit; }
a { color: inherit; }

.site-header {
  position: fixed; z-index: 20; top: 0; left: 0; width: 100%;
  display: flex; align-items: center; justify-content: space-between; padding: 24px 32px;
  color: var(--white); background: linear-gradient(to bottom, rgba(8,8,7,.5), rgba(8,8,7,.08), transparent);
  transition: background 240ms ease, padding 240ms ease;
}
.site-header.is-scrolled { background: rgba(15,15,13,.76); -webkit-backdrop-filter: blur(18px) saturate(115%); backdrop-filter: blur(18px) saturate(115%); padding-top: 16px; padding-bottom: 16px; }
.brand { align-items: center; display: flex; gap: 12px; min-width: 230px; text-decoration: none; }
.brand-icon { display: block; filter: drop-shadow(0 1px 10px rgba(0,0,0,.24)); height: 34px; object-fit: contain; width: 34px; }
.brand strong { display: block; font-family: Georgia, "Times New Roman", serif; font-size: 24px; font-weight: 700; line-height: 1; }
.brand small { color: rgba(255,250,241,.66); display: block; font-size: 11px; margin-top: 5px; }
.header-actions { display: flex; align-items: center; gap: 20px; }
.back-link { border-bottom: 1px solid rgba(255,250,241,.55); padding: 10px 0 5px; font-size: 12px; font-weight: 700; letter-spacing: .11em; text-decoration: none; text-transform: uppercase; }
.back-label-short { display: none; }
.lang-toggle { display: flex; align-items: center; gap: 5px; padding: 0; color: var(--white); background: none; border: 0; cursor: pointer; font-size: 12px; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.lang-toggle span:first-child { color: #ed453d; }
.lang-toggle.is-zh span:first-child { color: rgba(255,250,241,.66); }
.lang-toggle.is-zh span:last-child { color: #ed453d; }

.note-hero { position: relative; min-height: min(790px, 88vh); display: flex; align-items: flex-end; overflow: hidden; color: white; }
.note-hero > img, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.note-hero > img { object-fit: cover; object-position: 58% center; }
.hero-shade { background: linear-gradient(90deg, rgba(11,10,9,.74) 0%, rgba(11,10,9,.42) 36%, rgba(11,10,9,.04) 72%), linear-gradient(0deg, rgba(11,10,9,.5), transparent 48%); }
.hero-content { position: relative; width: min(100% - 64px, 1280px); margin: 0 auto; padding: 27vh 0 110px; }
.eyebrow, .section-label { color: var(--red); margin: 0 0 20px; font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero-content h1 { margin: 0; max-width: 700px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(54px, 6.4vw, 96px); line-height: 1; font-weight: 400; letter-spacing: 0; }
.hero-content > p:not(.eyebrow) { max-width: 500px; margin: 30px 0; color: rgba(255,250,241,.88); font-size: 20px; line-height: 1.55; }
.text-link { display: inline-block; font-size: 12px; font-weight: 800; text-decoration: none; text-transform: uppercase; letter-spacing: .1em; padding-bottom: 10px; position: relative; transition: opacity 180ms ease; }
.text-link::before, .text-link::after { bottom: 0; content: ""; left: 0; position: absolute; width: 100%; }
.text-link::before { background: currentColor; height: 1px; opacity: .34; }
.text-link::after { background: var(--red); height: 2px; transform: scaleX(.38); transform-origin: left center; transition: transform 420ms cubic-bezier(.22, 1, .36, 1); }
.text-link:hover { opacity: .82; }
.text-link:hover::after, .text-link:focus-visible::after { transform: scaleX(1); }

.intro-band { display: grid; grid-template-columns: .82fr 1fr; gap: 11vw; padding: clamp(76px, 10vw, 150px) clamp(24px, 9vw, 138px); border-bottom: 1px solid var(--line); }
.intro-band h2, .form-aside h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(38px, 4.7vw, 66px); line-height: 1.03; font-weight: 400; letter-spacing: 0; }
.intro-copy { padding-top: 30px; }
.intro-copy p { max-width: 620px; margin: 0 0 22px; color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.intro-copy .quiet { color: var(--muted); font-size: 14px; }

.next-steps { display: grid; grid-template-columns: .82fr 1fr; gap: 11vw; padding: clamp(76px, 9vw, 132px) clamp(24px, 9vw, 138px); color: var(--white); background: var(--ink); }
.next-steps h2 { max-width: 430px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(38px, 4.7vw, 66px); font-weight: 400; line-height: 1.03; }
.next-steps-copy { max-width: 650px; }
.next-steps-copy p { margin: 0; color: rgba(255,250,241,.72); font-size: 16px; line-height: 1.75; }
.next-steps-copy p:first-child { color: var(--white); font-family: Georgia, "Times New Roman", serif; font-size: clamp(26px, 2.5vw, 36px); line-height: 1.28; }
.next-steps-copy p + p { margin-top: 26px; }
.next-steps .text-link { margin-top: 32px; color: var(--white); }

.form-section { display: grid; grid-template-columns: minmax(270px, .72fr) minmax(0, 1.28fr); gap: 9vw; padding: clamp(78px, 10vw, 148px) clamp(24px, 9vw, 138px); }
.form-aside { align-self: start; }
.form-aside h2 { max-width: 470px; }
.aside-rule { width: 64px; border-top: 1px solid var(--red); margin: 42px 0; }
.form-aside > p:not(.section-label) { max-width: 330px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.design-form { max-width: 820px; }
.design-form fieldset { min-width: 0; margin: 0; padding: 0 0 62px; border: 0; }
.design-form > fieldset + fieldset { padding-top: 58px; border-top: 1px solid var(--line); }
.design-form legend { width: 100%; display: grid; grid-template-columns: 42px 1fr; gap: 16px; margin: 0 0 14px; padding: 0; }
.design-form legend span { color: var(--red); font-size: 13px; font-weight: 800; line-height: 1.5; }
.design-form legend strong { font-family: Georgia, "Times New Roman", serif; font-size: clamp(30px, 3.4vw, 50px); line-height: 1.08; font-weight: 400; }
.field-label { display: block; margin: 0 0 20px 58px; color: var(--muted); font-size: 13px; line-height: 1.55; }
textarea, .contact-grid input { width: calc(100% - 58px); margin-left: 58px; padding: 14px 0; color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid rgba(17,17,15,.42); border-radius: 0; outline: 0; resize: vertical; font-size: 16px; line-height: 1.55; }
textarea:focus, .contact-grid input:focus { border-color: var(--red); }
.contact-section { padding: 62px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 28px; }
.contact-grid label:first-child { grid-column: 1 / -1; }
.contact-grid label > span, .preference-group > legend { display: block; color: var(--muted); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contact-grid input { width: 100%; margin: 7px 0 0; }
.preference-group { display: flex; align-items: center; gap: 24px; padding: 30px 0 0 !important; }
.preference-group > legend { float: left; width: auto; margin: 0 14px 0 0; display: block; }
.preference-group label { display: flex; align-items: center; gap: 8px; font-size: 14px; line-height: 1; cursor: pointer; }
.preference-group input { accent-color: var(--red); }
.field-error { margin: 12px 0 0; color: var(--red); font-size: 13px; line-height: 1.4; }
.consent { display: grid; grid-template-columns: 18px 1fr; gap: 12px; margin: 32px 0; color: var(--muted); font-size: 13px; line-height: 1.55; cursor: pointer; }
.consent input { margin: 3px 0 0; accent-color: var(--red); }
.submit-button { width: 100%; min-height: 56px; display: flex; justify-content: space-between; align-items: center; padding: 0 28px; color: var(--white); background: var(--red); border: 1px solid var(--red); cursor: pointer; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; transition: transform .18s ease, background .18s ease; }
.submit-button:hover { transform: translateY(-2px); }
.submit-button b { font-size: 22px; font-weight: 400; }
.privacy { color: var(--muted); font-size: 11px; line-height: 1.5; }
.honeypot { position: absolute; overflow: hidden; clip: rect(0 0 0 0); width: 1px; height: 1px; margin: -1px; padding: 0; border: 0; }

.site-footer { align-items: center; background: var(--ink); color: rgba(255,250,241,.7); display: flex; gap: 28px; justify-content: center; padding: 34px 32px; text-align: center; }
.site-footer strong { color: var(--white); font-family: Georgia, "Times New Roman", serif; font-size: 20px; }
.site-footer a { color: var(--white); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; }
.footer-links { display: flex; align-items: center; gap: 18px; }
.site-footer .footer-links a { color: rgba(255,250,241,.78); font-size: 10px; letter-spacing: .1em; }

.motion-ready .note-hero > img { transform: scale(1.04); transition: transform 1.8s cubic-bezier(.2,.65,.25,1); }
.motion-ready.page-ready .note-hero > img { transform: scale(1); }
.motion-ready .hero-content > * { opacity: 0; transform: translateY(18px); transition: opacity 700ms ease, transform 700ms ease; }
.motion-ready.page-ready .hero-content > * { opacity: 1; transform: translateY(0); }
.motion-ready.page-ready .hero-content > :nth-child(2) { transition-delay: 90ms; }
.motion-ready.page-ready .hero-content > :nth-child(3) { transition-delay: 170ms; }
.motion-ready.page-ready .hero-content > :nth-child(4) { transition-delay: 240ms; }
.motion-ready .reveal { opacity: 0; transform: translateY(16px); transition: opacity 650ms ease, transform 650ms ease; }
.motion-ready .reveal.is-visible { opacity: 1; transform: translateY(0); }

.thank-you { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; background: var(--ink); color: white; }
.thank-you-image { min-height: 100vh; background: url("../assets/design-note-hero.jpg") center/cover; }
.thank-you-copy { align-self: center; max-width: 650px; padding: 80px clamp(34px, 7vw, 110px); }
.thank-you-copy h1 { margin: 0 0 28px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(56px, 7vw, 104px); line-height: .98; font-weight: 400; }
.thank-you-copy p:not(.eyebrow) { margin: 0 0 18px; color: rgba(255,250,241,.72); font-size: 17px; line-height: 1.7; }
.thank-you-copy .text-link { margin-top: 20px; }

html:lang(zh-CN) body, html:lang(zh-CN) button, html:lang(zh-CN) input, html:lang(zh-CN) textarea { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif; }
html:lang(zh-CN) .brand small { font-size: 11px; letter-spacing: .04em; }
html:lang(zh-CN) .back-link, html:lang(zh-CN) .lang-toggle { font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: none; }
html:lang(zh-CN) .eyebrow, html:lang(zh-CN) .section-label { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: none; }
html:lang(zh-CN) .hero-content h1, html:lang(zh-CN) .intro-band h2, html:lang(zh-CN) .next-steps h2, html:lang(zh-CN) .form-aside h2, html:lang(zh-CN) .design-form legend strong, html:lang(zh-CN) .thank-you-copy h1 { font-family: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", serif; font-weight: 500; }
html:lang(zh-CN) .hero-content h1, html:lang(zh-CN) .thank-you-copy h1 { font-size: clamp(48px, 5.9vw, 86px); line-height: 1.12; }
html:lang(zh-CN) .hero-content > p:not(.eyebrow) { font-size: 20px; line-height: 1.75; max-width: 520px; }
html:lang(zh-CN) .intro-band h2, html:lang(zh-CN) .next-steps h2, html:lang(zh-CN) .form-aside h2 { font-size: clamp(34px, 4vw, 58px); line-height: 1.22; }
html:lang(zh-CN) .next-steps-copy p:first-child { font-family: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", serif; font-weight: 500; line-height: 1.5; }
html:lang(zh-CN) .design-form legend strong { font-size: clamp(30px, 3.1vw, 45px); line-height: 1.2; }
html:lang(zh-CN) .submit-button { font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: none; }

@media (max-width: 800px) {
  .site-header { padding: 18px 20px; }
  .brand { min-width: auto; }
  .header-actions { gap: 14px; }
  .back-label-full { display: none; }
  .back-label-short { display: inline; }
  .note-hero { min-height: 86svh; }
  .note-hero > img { object-position: 59% center; }
  .hero-shade { background: linear-gradient(0deg, rgba(11,10,9,.88), rgba(11,10,9,.16) 76%); }
  .hero-content { width: auto; margin: 0; padding: 148px 24px 70px; }
  .hero-content h1 { font-size: clamp(42px, 11.5vw, 62px); line-height: 1.08; max-width: 100%; }
  .hero-content > p:not(.eyebrow) { font-size: 18px; }
  .intro-band, .next-steps, .form-section { grid-template-columns: 1fr; gap: 54px; padding-left: 22px; padding-right: 22px; }
  .intro-copy { padding-top: 0; }
  .form-aside { position: static; }
  .form-aside > p:not(.section-label) { display: inline; margin-right: 8px; }
  .design-form legend { grid-template-columns: 34px 1fr; }
  .field-label { margin-left: 50px; }
  textarea { width: calc(100% - 50px); margin-left: 50px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-grid label:first-child { grid-column: auto; }
  .preference-group { align-items: flex-start; flex-wrap: wrap; }
  .preference-group > legend { width: 100%; margin-bottom: 8px; }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .footer-links { flex-wrap: wrap; }
  .thank-you { grid-template-columns: 1fr; }
  .thank-you-image { min-height: 40vh; }
  .thank-you-copy { padding: 62px 24px 80px; }
}

@media (max-width: 560px) {
  .brand strong { font-size: 19px; }
  .lang-toggle { font-size: 11px; }
  html:lang(zh-CN) .hero-content h1, html:lang(zh-CN) .thank-you-copy h1 { font-size: clamp(42px, 10vw, 64px); }
}

@media (max-width: 380px) {
  .site-header { gap: 8px; padding-left: 12px; padding-right: 12px; }
  .brand { gap: 6px; }
  .brand-icon { height: 28px; width: 28px; }
  .brand strong { font-size: 14px; }
  .back-link, .lang-toggle { font-size: 10px; }
  .header-actions { gap: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .note-hero > img, .hero-content > *, .reveal { opacity: 1 !important; transform: none !important; }
  .text-link::after { transform: scaleX(.38) !important; }
}