/* ==========================================================================
   About Us Page Styles (关于我们页面专属样式)
   Header / Footer / 通用布局样式继承自 common.css
   配色沿用全站金色系：--gold (#e5b54d)，深金 #dca32c / #b8860b
   ========================================================================== */

:root {
  --about-gold: #dca32c;
  --about-gold-deep: #b8860b;
  --about-gold-bright: #f5cb66;
  --about-ink: #221d13;
  --about-gray: #6e6759;
  --about-cream: #faf6ec;
  --about-line: #e9dfc8;
}

/* 页面主体使用浅色背景，与深色 header/footer 形成层次 */
.about-page main {
  background: #ffffff;
  color: var(--about-ink);
}

/* -------------------------------------------------------------
   Shared: Reveal Animation & Capsule Button (与首页一致)
------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 1.25s cubic-bezier(0.16, 1, 0.3, 1), transform 1.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-left {
  transform: translateX(-54px);
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

.btn-primary-capsule {
  position: relative;
  overflow: hidden;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 32px;
  border: 1.5px solid #dca32c;
  border-radius: 22px;
  background: #ffffff;
  color: #dca32c;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(220, 163, 44, 0.12);
  transition: color 0.45s ease, border-color 0.45s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.btn-primary-capsule::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #dca32c, #f5cb66);
  transform: translateX(-101%);
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

.btn-primary-capsule:hover::before {
  transform: translateX(0);
}

.btn-primary-capsule:hover {
  color: #ffffff;
  border-color: #dca32c;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(220, 163, 44, 0.35);
}

.btn-primary-capsule span,
.btn-primary-capsule i {
  position: relative;
  z-index: 2;
}

/* -------------------------------------------------------------
   Shared About Typography (页面通用标题元素)
------------------------------------------------------------- */
.about-kicker {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--about-gold);
}

.about-h2 {
  margin: 0;
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.5px;
  color: var(--about-ink);
}

.title-underline {
  display: block;
  width: 68px;
  height: 3px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--about-gold-deep), var(--about-gold-bright));
  border-radius: 2px;
}

/* -------------------------------------------------------------
   1. About Hero Banner (首屏横幅)
------------------------------------------------------------- */
.about-hero {
  position: relative;
  min-height: clamp(340px, 44vw, 620px);
  display: flex;
  align-items: center;
  background: url("../images/about.png") center right / cover no-repeat, #f7f0dd;
}

/* 顶部加深渐变，保证透明 Header 的白色文字在浅色横幅上可读 */
.about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(23, 19, 14, 0.52) 0%, rgba(23, 19, 14, 0.18) 22%, rgba(23, 19, 14, 0) 40%);
  pointer-events: none;
}

.about-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(48px, 6vw, 90px);
  padding-bottom: clamp(120px, 16vw, 240px);
}

.about-hero__title {
  margin: 0 0 18px;
  font-size: clamp(44px, 5.4vw, 76px);
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--about-gold-deep);
  text-shadow: 0 2px 12px rgba(255, 255, 255, 0.65);
}

.about-hero__sub {
  margin: 0 0 6px;
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 600;
  letter-spacing: 0.6px;
  color: var(--about-ink);
}

.about-hero__slogan {
  margin: 26px 0 0;
  font-size: clamp(16px, 1.5vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.4px;
  color: var(--about-ink);
}

/* -------------------------------------------------------------
   2. Who We Are (公司介绍)
------------------------------------------------------------- */
.who-section {
  padding: clamp(56px, 6vw, 96px) 0;
  background: #ffffff;
}

.who-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(36px, 5vw, 80px);
  align-items: center;
}

.who-copy {
  --who-copy-line-height: 28px;
  --who-copy-lines: 10;
  margin: 22px 0 30px;
  max-height: calc(var(--who-copy-line-height) * var(--who-copy-lines));
  overflow-y: auto;
  padding-right: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--about-gold) rgba(233, 223, 200, 0.55);
}

.who-copy::-webkit-scrollbar {
  width: 6px;
}

.who-copy::-webkit-scrollbar-track {
  background: rgba(233, 223, 200, 0.55);
  border-radius: 999px;
}

.who-copy::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #e6ac35, var(--about-gold));
  border-radius: 999px;
}

.who-copy p {
  margin: 0 0 var(--who-copy-line-height);
  font-size: 15px;
  line-height: var(--who-copy-line-height);
  color: var(--about-gray);
}

.who-copy p:last-child {
  margin-bottom: 0;
}

.who-btn {
  border-radius: 24px;
}

.who-media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 22px 48px rgba(184, 134, 11, 0.18);
  border: 1px solid var(--about-line);
}

.who-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 4px rgba(220, 163, 44, 0.18);
  pointer-events: none;
}

.who-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* -------------------------------------------------------------
   3. Stats Bar (数据概览条)
------------------------------------------------------------- */
.about-stats-bar {
  background: #fbf8f1;
  /* border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line); */
  padding: clamp(28px, 3vw, 42px) 0;
}

.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(18px, 2vw, 32px);
  align-items: center;
  min-height: 86px;
  /* border: 1px solid rgba(184, 134, 11, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 10px 30px rgba(34, 29, 19, 0.06); */
}

.stats-bar-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: left;
  padding: 4px 8px;
}

.stats-bar-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: calc(-1 * clamp(9px, 1vw, 16px));
  transform: translateY(-50%);
  width: 1px;
  height: 62%;
  background: var(--about-line);
}

.stats-icon {
  display: inline-flex;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  color: #c87e00;
}

.stats-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stats-text strong {
  display: block;
  font-size: clamp(24px, 2.2vw, 32px);
  font-weight: 800;
  color: var(--about-gold-deep);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.stats-text strong small {
  font-size: 0.55em;
  font-weight: 700;
}

.stats-label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--about-gray);
  line-height: 1.4;
}

/* -------------------------------------------------------------
   4. Our Strength (企业实力：图片拼贴 + 优势列表)
------------------------------------------------------------- */
.about-strength {
  padding: clamp(56px, 6vw, 96px) 0;
  background: #ffffff;
}

.strength-title {
  margin: 0 0 clamp(28px, 3.4vw, 44px);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 800;
  letter-spacing: 2.5px;
  color: var(--about-ink);
}

.strength-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(32px, 4.5vw, 72px);
  align-items: stretch;
}

.strength-media {
  position: relative;
  height: 100%;
  min-height: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--about-line);
  box-shadow: 0 18px 42px rgba(184, 134, 11, 0.16);
}

.strength-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.strength-media:hover img {
  transform: scale(1.04);
}

.strength-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.strength-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 0 0 clamp(18px, 1.8vw, 24px);
}

.strength-item + .strength-item {
  padding-top: clamp(18px, 1.8vw, 24px);
  border-top: 1px solid var(--about-line);
}

.strength-icon {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid rgba(200, 126, 0, 0.2);
  background:
    linear-gradient(145deg, #fffaf0 0%, #f4dfb0 100%);
  color: #c87e00;
  box-shadow:
    0 10px 22px rgba(184, 134, 11, 0.13),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.strength-icon svg {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.35;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.strength-body h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--about-ink);
}

.strength-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-gray);
}

/* -------------------------------------------------------------
   5. Our Values (企业价值观)
------------------------------------------------------------- */
.about-values {
  padding: clamp(52px, 5.6vw, 88px) 0 clamp(60px, 6.4vw, 100px);
  background: linear-gradient(180deg, #ffffff 0%, var(--about-cream) 100%);
}

.values-title {
  margin: 0 0 clamp(30px, 3.6vw, 48px);
  text-align: center;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--about-gold-deep);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(22px, 3vw, 44px);
  margin: 0 auto;
  padding: 16px 22px;
  border: 1px solid rgba(184, 134, 11, 0.15);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 26px rgba(34, 29, 19, 0.05);
}

.value-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  text-align: left;
  padding: 6px 10px;
}

.value-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 12%;
  right: calc(-1 * clamp(11px, 1.5vw, 22px));
  width: 1px;
  height: 76%;
  background: var(--about-line);
}

.value-icon {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 1px solid rgba(200, 126, 0, 0.2);
  background:
    linear-gradient(145deg, #fffaf0 0%, #f4dfb0 100%);
  color: #c87e00;
  box-shadow:
    0 10px 22px rgba(184, 134, 11, 0.13),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.value-icon svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.value-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--about-ink);
}

.value-item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-gray);
}



/* -------------------------------------------------------------
   Responsive (响应式适配)
------------------------------------------------------------- */
@media (max-width: 1024px) {
  .who-grid {
    grid-template-columns: 1fr;
  }

  .who-media {
    max-height: 420px;
  }

  .who-copy {
    --who-copy-lines: 9;
  }

  .stats-bar-grid {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 32px;
  }

  .stats-bar-item:nth-child(3)::after {
    display: none;
  }

  .strength-grid {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: 1fr;
    row-gap: 28px;
    max-width: 560px;
  }

  .value-item::after {
    display: none !important;
  }
}

@media (max-width: 640px) {
  .about-hero {
    background-position: 62% center;
  }

  .stats-bar-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-bar-item::after {
    display: none !important;
  }

  .stats-bar-item {
    justify-content: flex-start;
  }

  .who-copy {
    --who-copy-lines: 8;
    padding-right: 10px;
  }

  .strength-media img {
    min-height: 280px;
  }

  .about-cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}