:root {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: #28352e;
  background: #ffffff;
  scroll-behavior: smooth;
  --orange-band: #fdf1e7;
}
* { box-sizing: border-box; }
body { min-width: 320px; margin: 0; }
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
.shell { width: min(calc(100% - 80px), 1260px); margin-inline: auto; }
.eyebrow { display: block; color: #d45e28; font-size: 11px; font-weight: 800; letter-spacing: .11em; }
.section { padding: 66px 0 72px; }
.section h2, .signal h2, .brief h2 { margin: 15px 0 0; font-size: 43px; font-weight: 750; line-height: 1.3; letter-spacing: 0; }
.button { min-height: 44px; padding: 0 19px; border: 0; display: inline-flex; align-items: center; justify-content: center; gap: 18px; font-size: 12px; font-weight: 700; white-space: nowrap; transition: background .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button span { font-size: 19px; font-weight: 400; }
.button-dark { color: #fff; background: #2d4236; }
.button-dark:hover { background: #456451; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid #b8431f; outline-offset: 3px; }

.site-header { position: relative; z-index: 20; height: 70px; color: #28352e; background: var(--orange-band); }
.site-header::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 8px; background: #f7dac4; }
.header-inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: none; white-space: nowrap; }
.brand img { display: block; width: 144px; height: auto; }
.brand-divider { width: 1px; height: 20px; background: #2d423660; }
.brand-tagline { font-size: 12px; font-weight: 400; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 26px; margin-left: auto; }
.desktop-nav a { font-size: 12px; font-weight: 650; white-space: nowrap; opacity: .96; }
.desktop-nav a:hover { text-decoration: underline; text-underline-offset: 7px; }
.header-actions { display: flex; align-items: center; gap: 14px; flex: none; }
.auth-entry, .auth-mobile-entry { border: 0; background: transparent; color: #28352e; font-size: 12px; font-weight: 700; white-space: nowrap; padding: 10px 0; }
.header-cta { display: inline-flex; align-items: center; gap: 12px; min-height: 38px; padding: 0 13px; border: 0; background: #2d4236; color: #fff; font-size: 11px; font-weight: 750; white-space: nowrap; }
.header-cta:hover { background: #456451; }
.header-cta span { font-size: 17px; font-weight: 400; }
.menu-toggle { display: none; width: 40px; height: 40px; border: 0; background: transparent; color: #28352e; font-size: 23px; }
.mobile-nav { display: none; }

.hero { position: relative; height: min(650px, calc(100svh - 185px)); min-height: 500px; overflow: hidden; background: #e8eae5; }
.hero-photo { position: absolute; inset: 0; background: url('img/hero-grinding.jpg') 45% center / cover no-repeat; }
.hero-wash { position: absolute; inset: 0; background: linear-gradient(90deg, #f8f9f600 0%, #f8f9f61a 45%, #f8f9f6c7 68%, #f8f9f6e3 100%); }
.hero-inner { position: relative; z-index: 1; height: 100%; display: flex; justify-content: flex-end; align-items: center; padding-bottom: 64px; }
.hero-copy { width: min(540px, 50%); }
.hero-eyebrow { color: #af4b21; }
.hero h1 { color: #2d3b32; font-size: 92px; line-height: 1; font-weight: 800; margin: 18px 0 19px; letter-spacing: 0; }
.hero h1 span { color: #ebbd9b; }
.hero-line { color: #2b3d31; font-size: 29px; line-height: 1.4; font-weight: 700; margin: 0 0 13px; }
.hero-summary { max-width: 440px; color: #5b6a5f; font-size: 13px; line-height: 1.8; margin: 0 0 19px; }
.hero-actions { display: flex; align-items: center; gap: 18px; }
.text-link { display: inline-flex; align-items: center; gap: 13px; font-size: 13px; font-weight: 700; color: #435849; white-space: nowrap; }
.text-link:hover, .under-link:hover { color: #c35c2c; }
.hero-bottom { position: absolute; z-index: 2; bottom: 0; left: 0; right: 0; height: 64px; color: #28352e; background: var(--orange-band); }
.hero-bottom-inner { height: 100%; display: flex; align-items: center; gap: 20px; }
.hero-bottom span { font-size: 13px; font-weight: 700; white-space: nowrap; }
.hero-bottom i { width: 1px; height: 18px; background: #2d423660; }
.hero-bottom b { margin-left: auto; font-size: 10px; font-weight: 750; letter-spacing: .1em; white-space: nowrap; }

.challenge { padding-top: 43px; background: #fff; }
.challenge-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 8vw; }
.challenge-intro h2 { color: #283b2e; }
.challenge-intro > p { max-width: 410px; margin: 18px 0 21px; color: #68786d; font-size: 13px; line-height: 1.8; }
.under-link { display: inline-flex; align-items: center; gap: 17px; color: #b84f25; border-bottom: 1px solid var(--orange-band); padding-bottom: 9px; font-size: 13px; font-weight: 750; }
.question-list { border-top: 2px solid var(--orange-band); }
.question-list article { display: grid; grid-template-columns: 40px 1fr 22px; gap: 16px; align-items: start; border-bottom: 1px solid #dbe1db; padding: 17px 0 18px; }
.question-number { color: #d36430; font-size: 12px; font-weight: 800; padding-top: 5px; }
.question-list h3 { margin: 0 0 6px; color: #293d30; font-size: 18px; }
.question-list p { margin: 0; color: #748276; font-size: 13px; line-height: 1.8; }
.question-arrow { color: #c75f2e; font-size: 19px; font-weight: 400; }

.approach { background: #f0f3ef; }
.section-topline { display: flex; align-items: center; justify-content: space-between; border-top: 5px solid var(--orange-band); padding-top: 16px; }
.section-index { color: #b84f25; font-size: 11px; font-weight: 800; }
.approach-heading, .audience-heading { display: flex; align-items: end; justify-content: space-between; gap: 42px; margin: 12px 0 33px; }
.approach-heading h2, .audience-heading h2 { margin: 0; }
.approach-heading p, .audience-heading p { width: 320px; flex: none; margin: 0 0 5px; color: #68786c; font-size: 13px; line-height: 1.8; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid #cdd7ce; }
.process-grid article { min-height: 155px; padding: 19px 20px 18px 0; border-bottom: 1px solid #cdd7ce; }
.process-grid article:not(:nth-child(4n + 1)) { border-left: 1px solid #cdd7ce; padding-left: 21px; }
.process-grid article > span { color: #c55d2b; font-size: 11px; font-weight: 800; }
.process-grid h3 { margin: 26px 0 7px; color: #2d4235; font-size: 17px; line-height: 1.4; }
.process-grid p { max-width: 225px; margin: 0; color: #6b7b70; font-size: 12px; line-height: 1.8; }
.process-grid article:last-child { grid-column: span 2; background: var(--orange-band); padding-left: 23px; border: 0; }
.process-grid article:last-child > span, .process-grid article:last-child h3, .process-grid article:last-child p { color: #28352e; }
.process-grid article:last-child h3 { margin-top: 25px; }

.signal { background: #fbf7f3; }
.signal-image { height: 375px; background: url('img/assembly-line.jpg') 48% 45% / cover no-repeat; }
.signal-layout { padding-block: 51px 58px; }
.signal-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 0 8vw; }
.signal-copy .eyebrow { grid-column: 1 / -1; }
.signal h2 { color: #2e4235; margin-top: 19px; }
.signal-copy > p { align-self: end; max-width: 470px; margin: 14px 0 0; color: #68766a; font-size: 13px; line-height: 1.8; }
.signal-terms { grid-column: 2; display: flex; gap: 12px; margin-top: 19px; }
.signal-terms span { min-width: 65px; padding-top: 10px; border-top: 2px solid var(--orange-band); color: #ad562d; font-size: 12px; font-weight: 750; }

.audience { background: #fff; }
.audience-heading { margin-block: 16px 36px; }
.audience-list { border-top: 1px solid #d6ded5; }
.audience-list article { display: grid; grid-template-columns: 90px 1fr; align-items: center; min-height: 88px; border-bottom: 1px solid #d6ded5; }
.audience-list article > span { color: #df783f; font-size: 34px; font-weight: 800; line-height: 1; }
.audience-list article > div { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.audience-list h3 { min-width: 230px; margin: 0; color: #2c4033; font-size: 18px; }
.audience-list p { width: 390px; max-width: 50%; margin: 0; color: #728075; font-size: 13px; line-height: 1.8; }

.brief { border-top: 10px solid var(--orange-band); background: #f8ede3; padding: 60px 0 68px; }
.brief-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 10vw; }
.brief h2 { color: #293c30; }
.brief-copy > p:not(.brief-quote) { max-width: 395px; margin: 17px 0 0; color: #69776c; font-size: 13px; line-height: 1.8; }
.brief-quote { margin-top: 49px; padding-top: 16px; border-top: 1px solid #d8bca7; color: #ac5c34; font-size: 12px; font-weight: 700; }
.brief-workspace { border-top: 2px solid #cf6935; padding-top: 19px; }
.brief-workspace form { display: flex; flex-direction: column; }
.brief-workspace label { margin: 0 0 9px; color: #475c4c; font-size: 12px; font-weight: 750; }
.brief-workspace input, .brief-workspace select { width: 100%; height: 42px; margin-bottom: 19px; border: 0; border-bottom: 1px solid #cdbfb4; border-radius: 0; outline: 0; background: transparent; color: #2d3d32; font-size: 13px; padding: 0 4px; }
.brief-workspace input:focus, .brief-workspace select:focus { border-bottom: 2px solid #d36532; }
.brief-workspace input::placeholder { color: #9b9c92; }
.form-submit { width: 100%; margin-top: 7px; }
.form-help { margin: 13px 0 0; color: #8c8a80; font-size: 11px; line-height: 1.65; }
.form-error { color: #a13523; font-size: 12px; }
.brief-result h3 { margin: 15px 0 10px; color: #2e4436; font-size: 22px; }
.brief-result > p { color: #617368; font-size: 14px; line-height: 1.9; }
.result-actions { display: flex; align-items: center; gap: 16px; margin-top: 25px; }
.text-button { border: 0; background: transparent; color: #a4522a; font-size: 13px; font-weight: 700; }
.copy-status { min-height: 1.5em; font-size: 12px !important; }

.site-footer { border-top: 7px solid var(--orange-band); color: #f5f7f2; background: #364338; padding: 43px 0 18px; }
.footer-main { display: grid; grid-template-columns: 2.3fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-brand img { width: 160px; height: auto; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 340px; color: #c5d0c5; font-size: 13px; line-height: 1.9; }
.footer-main > div:not(:first-child) { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-main > div:not(:first-child) span { margin-bottom: 8px; color: #f5b289; font-size: 11px; font-weight: 800; }
.footer-main a { color: #e0e8df; font-size: 12px; }
.footer-main a:hover { color: #ffb282; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #607363; padding-top: 18px; color: #b5c5b6; font-size: 11px; }
.footer-bottom p { margin: 0; }

.auth-dialog { width: min(calc(100% - 32px), 420px); max-width: none; max-height: calc(100dvh - 32px); overflow-y: auto; border: 0; border-top: 7px solid var(--orange-band); border-radius: 0; padding: 25px 32px 28px; color: #293b30; background: #fff; box-shadow: 0 24px 75px #1b281f48; }
.auth-dialog::backdrop { background: #24352ab3; }
.auth-close { position: absolute; top: 15px; right: 18px; width: 33px; height: 33px; border: 0; background: transparent; color: #6b786c; font-size: 26px; line-height: 1; }
.auth-logo { display: block; width: 145px; height: auto; margin-bottom: 20px; }
.auth-dialog h2 { margin: 10px 0 8px; font-size: 24px; }
.auth-description { margin: 0 0 20px; color: #748176; font-size: 13px; line-height: 1.8; }
.auth-dialog form { display: flex; flex-direction: column; }
.auth-dialog label { margin: 0 0 8px; color: #44594a; font-size: 12px; font-weight: 750; }
#auth-company { width: 100%; height: 44px; margin-bottom: 18px; border: 1px solid #d6ded5; padding: 0 12px; color: #2d3d32; font-size: 13px; }
.auth-dialog .consent-row input { width: 17px; height: 17px; margin: 0 6px 0 0; accent-color: #2d4236; }
.auth-dialog .consent-row label { margin: 0; font-weight: 500; }
.auth-phone-wrap { display: flex; align-items: center; height: 44px; margin-bottom: 18px; border: 1px solid #d6ded5; }
.auth-phone-wrap span { border-right: 1px solid #d6ded5; padding: 0 14px; color: #596b5e; font-size: 13px; }
.auth-phone-wrap input { min-width: 0; height: 100%; flex: 1; border: 0; outline: 0; padding: 0 12px; color: #2d3d32; background: transparent; font-size: 13px; }
.auth-code-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 118px; gap: 9px; margin-bottom: 19px; }
.auth-code-wrap input { min-width: 0; height: 44px; border: 1px solid #d6ded5; outline: 0; padding: 0 12px; color: #2d3d32; font-size: 13px; }
.auth-code-wrap button { height: 44px; border: 1px solid var(--orange-band); color: #bd572a; background: #fff5ed; font-size: 12px; font-weight: 750; }
.auth-phone-wrap:focus-within, .auth-code-wrap input:focus { border-color: #d76831; }
.auth-submit { width: 100%; }
.auth-status { margin: 12px 0 0; padding: 9px 11px; color: #8d593e; background: #fbf0e6; font-size: 11px; line-height: 1.7; }

@media (max-width: 1190px) {
  .desktop-nav { gap: 19px; }
  .header-inner { gap: 22px; }
  .header-cta { display: none; }
}
@media (max-width: 980px) {
  .shell { width: min(calc(100% - 48px), 1380px); }
  .desktop-nav { display: none; }
  .header-actions { margin-left: auto; }
  .menu-toggle { display: block; }
  .mobile-nav { display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; padding: 11px 24px 16px; color: #28352e; background: var(--orange-band); box-shadow: 0 14px 25px #25342733; }
  .mobile-nav a, .auth-mobile-entry { width: 100%; border-bottom: 1px solid #2d423653; padding: 10px 0; text-align: left; color: #28352e; font-size: 13px; }
  .hero-copy { width: min(520px, 58%); }
  .hero h1 { font-size: 76px; }
  .hero-line { font-size: 26px; }
  .challenge-layout, .brief-layout { gap: 6vw; }
  .approach-heading p, .audience-heading p { width: 275px; }
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-grid article:nth-child(odd) { border-left: 0; padding-left: 0; }
  .process-grid article:nth-child(even) { border-left: 1px solid #cdd7ce; padding-left: 21px; }
  .process-grid article:last-child { grid-column: span 2; padding-left: 23px; }
}
@media (max-width: 700px) {
  .shell { width: min(calc(100% - 36px), 1380px); }
  .section { padding: 50px 0 55px; }
  .section h2, .signal h2, .brief h2 { font-size: 31px; }
  .site-header { height: 60px; }
  .site-header::before { width: 6px; }
  .header-inner { gap: 10px; }
  .brand { gap: 6px; }
  .brand img { width: 115px; }
  .brand-divider { height: 15px; }
  .brand-tagline { font-size: 11px; }
  .header-actions { display: none; }
  .mobile-nav { top: 60px; }
  .hero { height: min(610px, calc(100svh - 170px)); min-height: 470px; }
  .hero-photo { background-position: 50% center; }
  .hero-wash { background: linear-gradient(90deg, #f8f9f6eb, #f8f9f6d5); }
  .hero-inner { justify-content: flex-start; align-items: flex-start; padding-top: 36px; padding-bottom: 64px; }
  .hero-copy { width: 100%; }
  .hero h1 { font-size: 54px; margin: 16px 0 13px; }
  .hero-line { font-size: 23px; margin-bottom: 10px; }
  .hero-summary { max-width: 350px; font-size: 12px; line-height: 1.75; margin-bottom: 17px; }
  .hero-actions { gap: 13px; }
  .hero-actions .button { min-height: 42px; padding-inline: 13px; gap: 8px; font-size: 11px; }
  .text-link { font-size: 11px; gap: 6px; }
  .hero-bottom { height: 50px; }
  .hero-bottom-inner { gap: 10px; }
  .hero-bottom span { font-size: 11px; }
  .hero-bottom i { height: 14px; }
  .hero-bottom b { display: none; }
  .challenge { padding-top: 32px; }
  .challenge-layout, .brief-layout { grid-template-columns: 1fr; gap: 30px; }
  .challenge-intro > p { margin-top: 18px; }
  .approach-heading, .audience-heading { display: block; margin: 17px 0 26px; }
  .approach-heading p, .audience-heading p { width: auto; margin-top: 13px; font-size: 13px; }
  .process-grid article { min-height: 145px; }
  .process-grid h3 { margin-top: 20px; font-size: 17px; }
  .signal-image { height: 250px; }
  .signal-layout { padding-block: 42px 48px; }
  .signal-copy { display: block; }
  .signal-copy > p { margin-top: 15px; font-size: 13px; }
  .signal-terms { margin-top: 20px; }
  .audience-list article { grid-template-columns: 68px 1fr; min-height: 100px; }
  .audience-list article > span { font-size: 31px; }
  .audience-list article > div { display: block; }
  .audience-list h3 { min-width: 0; font-size: 18px; }
  .audience-list p { max-width: none; width: auto; margin-top: 7px; font-size: 12px; }
  .brief { padding: 47px 0 54px; }
  .brief-quote { margin-top: 23px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 26px; padding-bottom: 34px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-wrap: wrap; line-height: 1.6; }
  .auth-dialog { padding-inline: 20px; }
}
@media (max-width: 430px) {
  .hero h1 { font-size: 49px; }
  .hero-line { font-size: 21px; }
  .hero-summary { max-width: 300px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 8px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid article, .process-grid article:nth-child(even) { min-height: 115px; border-left: 0; padding: 14px 0 16px; }
  .process-grid h3 { margin: 13px 0 5px; }
  .process-grid article:last-child { grid-column: 1; min-height: 120px; padding-left: 16px; }
  .signal-image { height: 210px; }
  .audience-list article { grid-template-columns: 58px 1fr; }
  .auth-code-wrap { grid-template-columns: minmax(0, 1fr) 112px; }
}
@media (max-width: 700px) and (max-height: 600px) {
  .hero { min-height: 450px; }
  .hero-inner { padding-top: 22px; }
  .hero h1 { font-size: 46px; margin: 8px 0; }
  .hero-line { font-size: 19px; margin-bottom: 7px; }
  .hero-summary { font-size: 11px; line-height: 1.6; margin-bottom: 11px; }
  .challenge { padding-top: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  .button { transition: none; }
}
.form-data-note { margin: -7px 0 13px; color: #68786c; font-size: 11px; line-height: 1.7; }
.consent-row { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; margin: 0 0 14px; color: #475c4c; font-size: 12px; }
.brief-workspace .consent-row input[type="checkbox"] { width: 17px; height: 17px; flex: none; margin: 0 8px 0 0; accent-color: #2d4236; }
.brief-workspace .consent-row label { margin: 0; font-size: 12px; font-weight: 500; cursor: pointer; }
.consent-row a, .form-help a, .auth-privacy a { color: #94502e; text-decoration: underline; text-underline-offset: 3px; }
.auth-privacy { margin: 12px 0 0; color: #647466; font-size: 11px; line-height: 1.75; }
.footer-legal { width: min(calc(100% - 40px), 1260px); margin: 17px auto 0; padding-top: 17px; border-top: 1px solid #607363; display: flex; flex-wrap: wrap; gap: 8px 22px; color: #c5d0c5; font-size: 11px; line-height: 1.7; }
.footer-legal a { color: inherit; text-underline-offset: 3px; }

/* Colour bands and background images stay centred and reach at most 228px beyond the content
   on each side (1260px content + 2 x 228px = 1716px; the owner's 2400px band with its side
   margins reduced by 60%, 2026-10-26). Background image files stay 2400px wide. */
.site-header, main > section, .site-footer { max-width: 1716px; margin-inline: auto; }