:root {
  --bg-start: #060a11;
  --bg-end: #111722;
  --surface: rgba(255, 255, 255, 0.94);
  --surface-strong: #ffffff;
  --surface-dark: rgba(255, 255, 255, 0.06);
  --text-strong: #f8fbff;
  --text-title: #ffffff;
  --text-body: rgba(236, 240, 248, 0.8);
  --text-dark: #16202a;
  --text-muted: #566270;
  --line-soft: rgba(255, 255, 255, 0.12);
  --line-card: rgba(15, 23, 42, 0.08);
  --accent: #dde5ff;
  --accent-strong: #9aafff;
  --shadow-soft: 0 32px 90px rgba(0, 0, 0, 0.28);
  --shadow-card: 0 24px 60px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-body);
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.1), transparent 36%),
    linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
}

body.modal-open {
  overflow: hidden;
}

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

button,
a {
  font: inherit;
}

.brand-page {
  width: min(1240px, calc(100% - 56px));
  margin: 0 auto;
  padding: 48px 0 88px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 88px;
  align-items: center;
  min-height: calc(100vh - 104px);
}

.hero__content {
  padding: 20px 0;
}

.hero__title-group {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero__eyebrow,
.section__eyebrow {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(235, 241, 255, 0.6);
}

.hero__name {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.25rem);
  line-height: 0.98;
  color: var(--text-title);
}

.hero__english {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.hero__role {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.hero__statement {
  display: flex;
  flex-direction: column;
}

.hero__headline {
  margin: 32px 0 0;
  max-width: 540px;
  font-size: clamp(1.48rem, 2.2vw, 1.96rem);
  line-height: 1.45;
  color: var(--text-title);
}

.hero__motto {
  margin: 18px 0 0;
  max-width: 520px;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(236, 240, 248, 0.7);
}

.hero__cta-note {
  margin: 20px 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(236, 240, 248, 0.52);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 128px;
  padding: 15px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-title);
  text-decoration: none;
  backdrop-filter: blur(16px);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.hero__action:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

.hero__action--wechat {
  background: #ffffff;
  color: #101828;
  border-color: #ffffff;
}

.hero__action:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  outline: 3px solid rgba(255, 255, 255, 0.95);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(142, 162, 255, 0.22);
}

.hero__media {
  display: flex;
  justify-content: center;
}

.hero__portrait-shell {
  display: flex;
  justify-content: center;
  padding: 24px;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-soft);
}

.hero__portrait {
  width: min(100%, 380px);
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: 32px;
  border: 0;
  box-shadow: none;
}

.section {
  margin-top: 24px;
  padding: 64px;
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-card);
}

.section__intro {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.section__intro .section__eyebrow {
  color: rgba(34, 48, 60, 0.5);
}

.section__title {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  line-height: 1.2;
  color: var(--text-dark);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.value-card {
  min-height: auto;
  padding: 30px 0 0;
  border-radius: 0;
  background: transparent;
  border: 0;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.value-card__title {
  margin: 0;
  font-size: 1.08rem;
  color: var(--text-dark);
}

.value-card__text {
  margin: 18px 0 0;
  font-size: 1.08rem;
  line-height: 1.8;
  color: #34414c;
}

.values-note {
  margin: 22px 0 0;
  max-width: 860px;
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--text-muted);
}

.section--signals {
  background: rgba(255, 255, 255, 0.98);
}

.signal-group + .signal-group {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid rgba(34, 48, 60, 0.08);
}

.signal-group__title {
  margin: 0 0 16px;
  font-size: 1.15rem;
  color: var(--text-dark);
}

.signal-group__note {
  margin: -4px 0 16px;
  max-width: 860px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.signal-group__content--grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.signal-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.signal-group--primary .signal-card {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
}

.signal-group--secondary .signal-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.signal-card h4,
.signal-card p {
  margin: 0;
  color: var(--text-dark);
  line-height: 1.7;
}

.signal-card h4 + p {
  margin-top: 10px;
  color: var(--text-muted);
}

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

.capability-layer {
  padding: 28px;
  border-radius: 28px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
}

.capability-layer__eyebrow {
  margin: 0 0 12px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(86, 98, 112, 0.76);
}

.capability-layer__title {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: var(--text-dark);
}

.capability-layer__text {
  margin: 0;
  color: #34414c;
  line-height: 1.75;
}

.capability-layer__supporting {
  margin: 18px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.section--contact {
  background: var(--surface-dark);
  border: 1px solid var(--line-soft);
}

.section--contact .section__eyebrow,
.section--contact .section__title,
.section--contact .contact-copy {
  color: var(--text-title);
}

.contact-copy {
  margin: 0;
  max-width: 760px;
  line-height: 1.85;
}

.contact-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.contact-bar__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 62px;
  padding: 16px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-title);
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease;
}

.contact-bar__item--primary {
  background: #ffffff;
  color: #101828;
  border-color: #ffffff;
}

.contact-bar__label {
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.4;
}

.contact-bar__detail {
  margin-top: 6px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: rgba(236, 240, 248, 0.76);
  word-break: break-all;
}

.contact-bar__item:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
}

.contact-bar__item:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
  outline: 3px solid rgba(255, 255, 255, 0.95);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(142, 162, 255, 0.18);
}

.contact-bar__item--button {
  cursor: pointer;
  text-align: left;
}

.wechat-modal[hidden] {
  display: none;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(10, 25, 47, 0.62);
}

.wechat-modal__dialog {
  position: relative;
  width: min(100%, 440px);
  padding: 2.4rem;
  border-radius: 32px;
  background: #ffffff;
  box-shadow: 0 28px 70px rgba(15, 23, 42, 0.18);
  text-align: center;
}

.wechat-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(10, 25, 47, 0.08);
  color: var(--text-dark);
  cursor: pointer;
}

.wechat-modal__close:focus-visible {
  outline: 3px solid rgba(142, 162, 255, 0.95);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(142, 162, 255, 0.18);
}

.wechat-modal__image {
  width: 220px;
  margin: 1rem auto 0;
  border-radius: 18px;
}

.wechat-modal__hint {
  margin: 1rem 0 0;
  color: var(--text-muted);
  line-height: 1.7;
}

@media (max-width: 960px) {
  .brand-page {
    width: min(100%, calc(100% - 28px));
    padding-top: 24px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__media {
    order: -1;
  }

  .hero__portrait {
    width: min(100%, 520px);
  }

  .value-grid,
  .signal-group__content--grid,
  .contact-bar {
    grid-template-columns: 1fr;
  }

  .capability-architecture {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand-page {
    width: calc(100% - 20px);
    padding-bottom: 40px;
  }

  .section {
    padding: 24px 18px;
    border-radius: 24px;
  }

  .hero__headline {
    font-size: 1.08rem;
  }

  .hero__actions {
    gap: 10px;
  }

  .hero__action {
    width: 100%;
  }

  .value-card {
    min-height: auto;
    padding: 22px;
  }
}