:root {
  --brown: #9a632e;
  --brown-deep: #774419;
  --gold: #d5a054;
  --gold-soft: #c79d5f;
  --cream: #fbf9f1;
  --ink: #252c31;
  --muted: #6c6c67;
  --line: #dedbd3;
  --content-width: 1200px;
  --shadow: 0 14px 36px rgba(54, 37, 19, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.is-menu-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }

button, a { -webkit-tap-highlight-color: transparent; }

button { font: inherit; }

img { display: block; max-width: 100%; }

.content-width {
  width: min(var(--content-width), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: #fff;
  transition: background-color .25s ease, box-shadow .25s ease;
}

.site-header.is-scrolled {
  background: rgba(103, 60, 28, .96);
  box-shadow: 0 8px 24px rgba(45, 26, 11, .18);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: min(1200px, calc(100% - 48px));
  min-height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand { display: block; width: 210px; flex: 0 0 210px; }
.brand-lockup { width: 210px; height: auto; max-width: none; }

.site-nav { display: flex; align-items: center; justify-content: center; gap: 20px; flex: 1 1 auto; }

.site-nav a { position: relative; white-space: nowrap; font-size: 12px; opacity: .82; transition: opacity .2s ease; }

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: #fff;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.site-nav a:hover, .site-nav a.is-active { opacity: 1; }
.site-nav a:hover::after, .site-nav a.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }

.language-switch {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  width: 100px;
  height: 42px;
  align-items: center;
  padding: 3px;
  border: 1px solid rgba(255,232,188,.86);
  border-radius: 22px;
  background: #5c2f03;
}

.language-switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  z-index: 0;
  width: 46px;
  height: 34px;
  border-radius: 18px;
  background: #dc9b53;
  box-shadow: 0 4px 10px rgba(63, 29, 4, .18);
  transition: transform .28s cubic-bezier(.22, .61, .36, 1);
}

.language-switch.is-english .language-switch-thumb { transform: translateX(46px); }

.language-switch button {
  position: relative;
  z-index: 1;
  min-width: 46px;
  height: 34px;
  padding: 0 7px;
  border: 0;
  border-radius: 18px;
  color: #fff;
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.language-switch button.is-active { color: #fff; }

.header-cta, .button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 22px;
  padding: 0 24px;
  font-size: 13px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.header-cta { min-width: 100px; min-height: 42px; padding: 0 18px; border-radius: 9px; color: #fff; background: #6d3607; font-size: 14px; }

.header-cta:hover, .button:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(37, 24, 11, .16); }

.menu-toggle { display: none; width: 40px; height: 40px; margin-left: auto; padding: 9px; border: 0; color: #fff; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }

@media (max-width: 1400px) and (min-width: 901px) {
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 76px 0 auto; display: grid; max-height: 0; gap: 0; overflow: hidden; padding: 0 24px; background: rgba(103,60,28,.98); transition: max-height .25s ease, padding .25s ease; }
  .site-nav.is-open { max-height: 540px; padding: 14px 24px 22px; }
  .site-nav a { padding: 13px 0; font-size: 14px; }
  .site-nav a::after { display: none; }
  .header-actions { margin-left: auto; }
}

.hero {
  min-height: 960px;
  color: #fff;
  background: #b77e42 url("./大泰易网站_slices/首图bg.png") center top / cover no-repeat;
}

.hero-inner { width: min(1280px, calc(100% - 48px)); min-height: 960px; display: grid; grid-template-columns: minmax(0, 1fr) 551px; gap: 64px; align-items: center; padding-top: 66px; }

.hero-copy { max-width: 630px; padding-top: 26px; }

.eyebrow { margin: 0 0 18px; font-size: 12px; font-weight: 800; letter-spacing: 1.6px; }
.eyebrow-light { color: rgba(255,255,255,.86); }
.eyebrow-brown { color: var(--brown); }

.hero h1 { margin: 0; font-size: 72px; line-height: 1.12; letter-spacing: 0; }
.hero h1 span { display: block; }
.hero h1 span:last-child { max-width: none; white-space: nowrap; }
html.lang-en .hero h1 span:last-child { white-space: normal; }

.hero-description { max-width: 560px; margin: 30px 0 0; color: rgba(255,255,255,.86); font-size: 16px; line-height: 1.9; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 38px; transform: translateY(65px); }
.hero-actions .button { min-height: 50px; padding: 0 32px; border: 0; border-radius: 25px; color: #fff; background: #996633; font-size: 16px; }

.hero-visual { position: relative; display: flex; justify-content: flex-end; padding-top: 38px; }

.hero-image-card { position: relative; width: 551px; overflow: visible; border-radius: 18px; background: #161616; box-shadow: 0 22px 50px rgba(56, 28, 5, .28); }

.hero-image-card img { width: 551px; height: 551px; object-fit: cover; border-radius: 18px; }

.hero-caption {
  position: absolute;
  bottom: 28px;
  left: -234px;
  display: grid;
  width: 310px;
  height: 136px;
  gap: 7px;
  padding: 18px 22px;
  border-radius: 12px;
  color: #fff;
  background: var(--brown-deep);
  box-shadow: 0 12px 24px rgba(70, 35, 5, .22);
}

.hero-caption strong { font-size: 24px; }
.hero-caption span { color: rgba(255,255,255,.78); font-size: 14px; line-height: 1.6; }

.growth { min-height: 760px; padding: 110px 0 100px; background: var(--cream) url("./大泰易网站_slices/九大子系统bg.png") center top / cover no-repeat; }

.section-heading { max-width: 1000px; margin: 0 auto 54px; text-align: center; }
.section-heading h2 { margin: 0; color: var(--brown-deep); font-size: 60px; line-height: 1.25; }
.section-heading > p:last-child { margin: 16px 0 0; color: #8c8174; font-size: 15px; line-height: 1.8; }

.growth-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }

.growth-card { overflow: hidden; border: 1px solid rgba(105, 71, 34, .08); border-radius: 16px; background: #fff; box-shadow: var(--shadow); transition: transform .24s ease, box-shadow .24s ease; }
.growth-card:hover { transform: translateY(-8px); box-shadow: 0 22px 40px rgba(54,37,19,.16); }
.growth-card img { width: 100%; aspect-ratio: 802 / 450; object-fit: cover; }
.growth-card-body { padding: 24px 26px 28px; }
.growth-card h3 { margin: 0; color: var(--brown-deep); font-size: 25px; }
.growth-card p { min-height: 52px; margin: 12px 0 0; color: #81786e; font-size: 13px; line-height: 1.8; }

.systems { padding: 43px 0 150px; background: #fff; }

.system-layout { display: grid; grid-template-columns: 418px minmax(0, 800px); align-items: start; }

.system-sidebar {
  position: sticky;
  top: 104px;
  min-height: 631px;
  padding: 52px 40px 44px;
  color: #fff;
  background: var(--brown) url("./大泰易网站_slices/每个子系统-容器.png") center / 100% 100% no-repeat;
  border-radius: 18px;
}

.system-sidebar h2 { margin: 0; font-size: 35px; line-height: 1.25; }
.sidebar-copy { margin: 24px 0 30px; color: rgba(255,255,255,.78); font-size: 13px; line-height: 1.7; }

.system-pills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

.system-pills button {
  min-height: 40px;
  padding: 0 6px;
  border: 0;
  border-radius: 20px;
  color: var(--brown-deep);
  background: #fff;
  font-size: 12px;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, transform .2s ease;
}

.system-pills button:hover { transform: translateY(-2px); }
.system-pills button.is-selected { color: #fff; background: var(--brown-deep); }

.system-list { display: grid; gap: 22px; padding-left: 0; }

.system-card {
  overflow: hidden;
  border: 1px solid #ebe7df;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 30px rgba(50, 38, 22, .1);
  scroll-margin-top: 108px;
  transition: transform .24s ease, box-shadow .24s ease;
}

.system-card:hover { transform: translateY(-6px); box-shadow: 0 22px 42px rgba(50, 38, 22, .16); }

.system-photo { width: 100%; aspect-ratio: 793 / 395; overflow: hidden; background: #eee; }
.system-photo img { width: 100%; height: 100%; object-fit: cover; }

.system-card-body { padding: 26px 30px 47px; }

.system-title-row { display: flex; align-items: center; gap: 15px; }
.system-logo { width: 54px; height: 54px; object-fit: contain; object-position: center; }
.system-title-row h3 { margin: 0; color: var(--brown-deep); font-size: 30px; }
.system-slogan { margin: 4px 0 0; color: #333333; font-size: 20px; line-height: 1.3; }

.system-principle { margin: 22px 0 14px; padding: 15px 18px; border-radius: 11px; color: #795b3c; background: #f2f0eb; font-size: 18px; line-height: 1.7; }
.system-principle strong { color: var(--brown-deep); }

.system-info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }

.system-info { min-height: 104px; padding: 14px 16px; border: 1px solid #e2dfd8; border-radius: 11px; }
.system-info h4 { margin: 0; color: var(--brown-deep); font-size: 18px; }
.system-info p { margin: 8px 0 0; color: #837b73; font-size: 16px; line-height: 1.65; }

.system-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.system-tags span { display: inline-flex; width: 160px; height: 40px; flex: 0 0 160px; align-items: center; justify-content: center; padding: 0; border-radius: 20px; color: #fff; background: var(--brown); font-size: 16px; }

.consultation { min-height: 600px; color: #fff; background: #111b25 url("./大泰易网站_slices/huaban-6863441798.png") center / cover no-repeat; }

.consultation-inner { display: flex; min-height: 600px; flex-direction: column; align-items: flex-start; justify-content: center; }
.consultation h2 { margin: 0; font-size: 52px; line-height: 1.25; }
.consultation p:not(.eyebrow) { max-width: 540px; margin: 24px 0 0; color: rgba(255,255,255,.76); font-size: 16px; line-height: 1.8; }
.button-gold { margin-top: 30px; color: #fff; background: #e3b35e; }

.site-footer { min-height: 840px; padding: 84px 0 22px; background: #fffdf8; }

.footer-intro { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; padding-bottom: 34px; border-bottom: 1px solid var(--line); }
.footer-intro h2 { margin: 0; color: var(--brown-deep); font-size: 35px; line-height: 1.35; }
.footer-intro p:not(.eyebrow) { max-width: 670px; margin: 16px 0 0; color: #8a8178; font-size: 13px; line-height: 1.8; }
.footer-actions { display: flex; flex: 0 0 auto; gap: 12px; }
.button-brown { color: #fff; background: var(--brown); }
.button-muted { color: #fff; background: #747474; }

.footer-grid { display: grid; grid-template-columns: 1.12fr .72fr 1.12fr; gap: 42px; padding: 34px 0 38px; }
.footer-brand-panel, .footer-qr-panel { padding: 28px 24px; color: #fff; background: var(--gold-soft); border-radius: 14px; }
.footer-brand-mark { width: 120px; height: auto; line-height: 0; }
.footer-brand-mark img { width: 100%; height: auto; }
.footer-brand-panel > p { max-width: 290px; margin: 22px 0; color: rgba(255,255,255,.82); font-size: 12px; line-height: 1.8; }
.contact-lines { display: grid; gap: 8px; }
.contact-lines span { display: block; padding: 9px 14px; border-radius: 9px; color: #876b49; background: #fff; font-size: 11px; }

.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-content: start; gap: 16px 22px; padding: 10px 0; color: #827a71; font-size: 12px; }
.footer-links strong { grid-column: 1 / -1; color: var(--ink); font-size: 14px; }
.footer-links a:hover, .footer-bottom a:hover { color: var(--brown); }

.footer-qr-panel strong { font-size: 14px; }
.footer-qr-panel p { margin: 12px 0 18px; color: rgba(255,255,255,.8); font-size: 12px; line-height: 1.7; }
.qr-row { display: flex; gap: 14px; }
.qr-code { width: 120px; height: 120px; flex: 0 0 120px; border-radius: 14px; object-fit: cover; }

.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 18px; border-top: 1px solid var(--line); color: #9a958e; font-size: 11px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1180px) {
  .site-nav { gap: 12px; }
  .site-nav a { font-size: 11px; }
  .hero-inner { grid-template-columns: minmax(0, 1fr) 450px; gap: 30px; }
  .hero-image-card, .hero-image-card img { width: 450px; height: 450px; }
  .hero-caption { left: -80px; }
  .system-layout { grid-template-columns: 360px minmax(0, 1fr); }
  .system-sidebar { padding-inline: 30px; }
}

@media (max-width: 1280px) and (min-width: 1025px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr) 551px; gap: 32px; }
  .hero-image-card, .hero-image-card img { width: 551px; height: 551px; }
  .hero h1 { font-size: 56px; }
  .hero-actions { transform: translateY(-2px); }
}

@media (max-width: 1024px) and (min-width: 901px) {
  .hero h1 { font-size: 42px; }
}

@media (max-width: 900px) {
  .header-inner { min-height: 68px; }
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 68px 0 auto; display: grid; max-height: 0; gap: 0; overflow: hidden; padding: 0 24px; background: rgba(103,60,28,.98); transition: max-height .25s ease, padding .25s ease; }
  .site-nav.is-open { max-height: 540px; padding: 14px 24px 22px; }
  .site-nav a { padding: 13px 0; font-size: 14px; }
  .site-nav a::after { display: none; }
  .header-actions { margin-left: auto; }
  .hero-inner { grid-template-columns: 1fr; min-height: auto; padding-top: 160px; padding-bottom: 90px; }
  .hero-copy { max-width: 680px; }
  .hero-visual { justify-content: center; padding-top: 20px; }
  .hero-image-card { width: min(520px, 100%); }
  .hero-image-card img { width: 100%; height: auto; aspect-ratio: 1; }
  .hero-caption { left: 16px; bottom: 16px; }
  .hero-actions { transform: none; }
  .system-layout { grid-template-columns: 1fr; gap: 38px; }
  .system-sidebar { position: relative; top: auto; min-height: auto; }
  .system-list { width: 100%; }
}

@media (max-width: 680px) {
  .content-width, .header-inner { width: min(100% - 32px, 520px); }
  .header-inner { gap: 12px; }
  .brand { width: 180px; flex-basis: 180px; }
  .brand-lockup { width: 180px; }
  .language-switch { width: 68px; height: 30px; padding: 2px; border-radius: 16px; }
  .language-switch-thumb { top: 2px; left: 2px; width: 30px; height: 24px; border-radius: 13px; }
  .language-switch.is-english .language-switch-thumb { transform: translateX(30px); }
  .language-switch button { min-width: 30px; height: 24px; padding: 0 3px; border-radius: 13px; font-size: 11px; }
  .header-actions { gap: 8px; }
  .header-cta { display: none; }
  .hero { min-height: 0; }
  .hero-inner { padding-top: 126px; padding-bottom: 70px; }
  .hero h1 { font-size: 34px; }
  .hero-description { margin-top: 22px; font-size: 14px; line-height: 1.8; }
  .hero-actions { margin-top: 28px; }
  .button { min-height: 40px; padding-inline: 19px; font-size: 12px; }
  .hero-caption { position: relative; right: auto; bottom: auto; left: auto; width: auto; height: auto; min-height: 136px; margin: -78px 14px 14px; }
  .growth { padding: 76px 0 80px; }
  .section-heading { margin-bottom: 32px; }
  .section-heading h2 { font-size: 32px; }
  .growth-grid { grid-template-columns: 1fr; gap: 16px; }
  .growth-card p { min-height: 0; }
  .systems { padding: 76px 0 88px; }
  .system-sidebar { padding: 38px 24px 30px; border-radius: 15px; }
  .system-sidebar h2 { font-size: 30px; }
  .system-pills { gap: 8px; }
  .system-pills button { font-size: 11px; }
  .system-card { border-radius: 14px; }
  .system-card-body { padding: 22px 18px 47px; }
  .system-title-row h3 { font-size: 24px; }
  .system-info-grid { grid-template-columns: 1fr; }
  .system-tags { gap: 8px; }
  .system-tags span { padding: 0; font-size: 16px; }
  .consultation, .consultation-inner { min-height: 500px; }
  .consultation h2 { font-size: 36px; }
  .consultation p:not(.eyebrow) { font-size: 14px; }
  .site-footer { padding-top: 64px; }
  .site-footer { min-height: 0; }
  .footer-intro, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-intro h2 { font-size: 30px; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-links { padding: 10px 4px; }
  .footer-qr-panel { min-height: 220px; }
}