@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800&family=Open+Sans:wght@400;600;700&display=swap');

:root {
  --l3m-black: #000000;
  --l3m-gold: #c5a900;
  --l3m-white: #ffffff;
  --l3m-grey: #f5f5f5;
  --l3m-text: #303030;
  --l3m-muted: #6b6b6b;
}

* { box-sizing: border-box; }
html { background: var(--l3m-grey); }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--l3m-text);
  background: var(--l3m-grey);
  font-family: 'Open Sans', Arial, sans-serif;
}
button, a { font: inherit; }
a { color: inherit; }

.page-shell {
  width: min(100%, 560px);
  min-height: 100vh;
  margin: 0 auto;
  overflow: hidden;
  background: var(--l3m-white);
  box-shadow: 0 0 44px rgba(0, 0, 0, .08);
}

.masthead {
  min-height: 180px;
  padding: 24px 24px 42px;
  color: var(--l3m-white);
  background: var(--l3m-black);
}
.brand-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand-chip {
  display: inline-flex;
  width: 152px;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  padding: 10px 15px;
  background: var(--l3m-white);
}
.brand-chip img { display: block; width: 120px; max-height: 39px; object-fit: contain; }
.lang-switch { display: inline-flex; gap: 2px; border: 1px solid rgba(255, 255, 255, .45); }
.lang-switch button {
  padding: 7px 9px;
  border: 0;
  color: var(--l3m-white);
  cursor: pointer;
  background: transparent;
  font-family: Montserrat, Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}
.lang-switch button.is-active { color: var(--l3m-black); background: var(--l3m-gold); }
.masthead-kicker {
  margin: 28px 0 0;
  font-family: Montserrat, Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}
.gold-notch { width: 44px; height: 29px; margin-left: 30px; background: var(--l3m-gold); clip-path: polygon(0 0, 100% 0, 50% 100%); }

.profile { padding: 16px 30px 34px; }
.eyebrow {
  margin: 20px 0 10px;
  color: var(--l3m-gold);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .16em;
}
.profile h1 {
  margin: 0;
  color: var(--l3m-black);
  font-family: Montserrat, Arial, sans-serif;
  font-size: clamp(33px, 9vw, 45px);
  line-height: 1.02;
  letter-spacing: -.055em;
}
.profile h1 strong { color: var(--l3m-gold); }
.role {
  max-width: 420px;
  margin: 13px 0 0;
  color: var(--l3m-muted);
  font-family: Montserrat, Arial, sans-serif;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
}
.gold-rule { width: 47px; height: 3px; margin: 24px 0 21px; background: var(--l3m-gold); }

.contact-list { display: grid; gap: 13px; padding: 0; margin: 0; list-style: none; }
.contact-item { display: grid; grid-template-columns: 36px 1fr; gap: 10px; align-items: baseline; min-width: 0; }
.contact-label { color: var(--l3m-gold); font-family: Montserrat, Arial, sans-serif; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.contact-value { min-width: 0; color: var(--l3m-text); font-size: 15px; line-height: 1.35; overflow-wrap: anywhere; text-decoration: none; }
.contact-value:hover { text-decoration: underline; text-decoration-color: var(--l3m-gold); text-underline-offset: 3px; }

.actions-section { padding: 0 20px 34px; }
.section-heading { margin: 0 0 12px; color: var(--l3m-black); font-family: Montserrat, Arial, sans-serif; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.actions { display: grid; gap: 10px; }
.action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 67px;
  padding: 15px 17px;
  border: 1px solid #dedede;
  color: var(--l3m-black);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  background: var(--l3m-white);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.action:hover, .action:focus-visible { border-color: var(--l3m-gold); box-shadow: 0 9px 18px rgba(0,0,0,.07); transform: translateY(-1px); outline: none; }
.action.is-primary { color: var(--l3m-white); border-color: var(--l3m-black); background: var(--l3m-black); }
.action.is-wechat { border-left: 4px solid var(--l3m-gold); }
.action-title { display: block; font-family: Montserrat, Arial, sans-serif; font-size: 14px; font-weight: 800; letter-spacing: -.01em; }
.action-copy { display: block; margin-top: 2px; color: #707070; font-size: 12px; line-height: 1.3; }
.action.is-primary .action-copy { color: rgba(255,255,255,.72); }
.action-arrow { color: var(--l3m-gold); font-family: Montserrat, Arial, sans-serif; font-size: 19px; font-weight: 700; }

.site-footer { margin: 0 20px; padding: 18px 0 27px; border-top: 1px solid #dedede; color: #777; font-family: Montserrat, Arial, sans-serif; font-size: 9px; font-weight: 700; letter-spacing: .12em; }
.site-footer a { color: var(--l3m-black); text-decoration: none; }

.wechat-dialog { width: min(calc(100% - 30px), 440px); padding: 0; border: 0; box-shadow: 0 20px 55px rgba(0,0,0,.25); }
.wechat-dialog::backdrop { background: rgba(0,0,0,.72); }
.dialog-body { position: relative; padding: 25px 25px 29px; text-align: center; background: var(--l3m-white); }
.dialog-close { position: absolute; top: 10px; right: 12px; width: 35px; height: 35px; border: 0; color: var(--l3m-black); cursor: pointer; background: transparent; font-size: 28px; line-height: 1; }
.dialog-kicker { margin: 0 0 8px; color: var(--l3m-gold); font-family: Montserrat, Arial, sans-serif; font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.dialog-body h2 { margin: 0; font-family: Montserrat, Arial, sans-serif; font-size: 24px; }
.wechat-qr { display: block; width: min(100%, 285px); margin: 20px auto 17px; border: 8px solid var(--l3m-grey); image-rendering: pixelated; }
.wechat-id { display: inline-flex; align-items: center; gap: 8px; margin: 0; padding: 9px 11px; background: var(--l3m-grey); font-size: 14px; }
.copy-id { border: 0; color: var(--l3m-black); cursor: pointer; background: transparent; font-family: Montserrat, Arial, sans-serif; font-size: 11px; font-weight: 800; }
.dialog-instruction { max-width: 330px; margin: 15px auto 0; color: var(--l3m-muted); font-size: 13px; line-height: 1.45; }
.dialog-download { display: inline-block; margin-top: 15px; color: var(--l3m-black); font-family: Montserrat, Arial, sans-serif; font-size: 12px; font-weight: 800; text-decoration-color: var(--l3m-gold); text-underline-offset: 4px; }

.landing { padding: 54px 28px; }
.landing h1 { margin: 25px 0 12px; font-family: Montserrat, Arial, sans-serif; font-size: 32px; line-height: 1.1; }
.landing p { max-width: 410px; color: var(--l3m-muted); line-height: 1.6; }
@media (max-width: 360px) {
  .masthead { padding-inline: 18px; }
  .brand-chip { width: 130px; }
  .brand-chip img { width: 104px; }
  .profile { padding-inline: 22px; }
}
@media (prefers-reduced-motion: reduce) { .action { transition: none; } }