:root {
  --a2-ink: #351d17;
  --a2-wine: #74151b;
  --a2-wine-dark: #4b0d12;
  --a2-brown: #7b4f34;
  --a2-gold: #a77550;
  --a2-cream: #f7efe3;
  --a2-paper: #fbf6ec;
  --a2-line: rgba(91, 51, 36, .18);
  --a2-shadow: 0 18px 42px rgba(51, 28, 18, .14);
}

body.rt3-about2-page {
  margin: 0;
  background: var(--a2-paper);
  color: var(--a2-ink);
}

.rt3-about2 {
  min-height: 100vh;
  overflow: clip;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 255, 255, .72), transparent 28rem),
    linear-gradient(180deg, #fbf6ec 0%, #f3e8d8 55%, #ead8c4 100%);
  color: var(--a2-ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.rt3-about2 *,
.rt3-about2 *::before,
.rt3-about2 *::after {
  box-sizing: border-box;
}

.rt3-about2 img {
  display: block;
  width: 100%;
  max-width: none;
  height: 100%;
  object-fit: cover;
}

/* Header dùng chung có logo kích thước cố định; không để luật ảnh nội dung kéo
   logo thành toàn chiều rộng sau khi trang Về chúng tôi đổi sang menu chung. */
.rt3-about2 .rt3-brand img {
  width: 56px;
  height: 56px;
  max-width: 56px;
  object-fit: contain;
}

.rt3-about2 a {
  color: inherit;
  text-decoration: none;
}

.rt3-about2 h1,
.rt3-about2 h2,
.rt3-about2 h3 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 500;
  letter-spacing: 0;
}

.rt3-about2 p {
  margin: 0;
}

.a2-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 280px 1fr auto;
  align-items: center;
  min-height: 86px;
  padding: 0 56px;
  background: rgba(251, 246, 236, .92);
  border-bottom: 1px solid var(--a2-line);
  backdrop-filter: blur(18px);
}

.a2-brand {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  width: max-content;
}

.a2-brand span {
  color: var(--a2-wine-dark);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
}

.a2-brand small {
  color: #7f5b4a;
  font-size: 8px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1.8px;
}

.a2-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(24px, 3vw, 52px);
  color: #311b16;
  font-size: 14px;
  font-weight: 600;
}

.a2-nav a {
  position: relative;
  padding: 34px 0 28px;
}

.a2-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 0;
  height: 1px;
  background: var(--a2-wine);
  transform: translateX(-50%);
  transition: width .24s ease;
}

.a2-nav a:hover,
.a2-nav a.is-current {
  color: var(--a2-wine);
}

.a2-nav a:hover::after,
.a2-nav a.is-current::after {
  width: 100%;
}

.a2-book {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 4px;
  background: var(--a2-wine-dark);
  color: #fff8ef !important;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(74, 13, 18, .18);
  transition: transform .22s ease, background .22s ease, box-shadow .22s ease;
}

.a2-book svg,
.a2-cta a svg,
.a2-stats svg,
.a2-origin li svg,
.a2-social svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.a2-book:hover {
  background: #8e1c22;
  color: #fff8ef;
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(74, 13, 18, .22);
}

.a2-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(520px, 1fr);
  min-height: 560px;
  border-bottom: 1px solid var(--a2-line);
}

.a2-hero-media {
  position: relative;
  min-height: 640px;
  margin: 0;
  overflow: hidden;
  background: #22140f;
}

.a2-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(16, 10, 8, .06) 0 44%, rgba(251, 246, 236, .48) 73%, rgba(251, 246, 236, .95) 100%),
    linear-gradient(180deg, rgba(16, 10, 8, .22), rgba(16, 10, 8, .02));
}

.a2-hero-media img {
  filter: saturate(.9) contrast(1.05);
}

.a2-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 680px;
  padding: clamp(42px, 5vw, 76px) clamp(34px, 4.4vw, 66px);
}

.a2-eyebrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: fit-content;
  margin-bottom: 24px;
  color: var(--a2-wine);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.8px;
}

.a2-eyebrow::after {
  content: "";
  display: block;
  width: 92px;
  height: 1px;
  background: var(--a2-line);
}

.a2-eyebrow::before {
  content: "✦";
  position: absolute;
  right: 92px;
  transform: translateX(50%);
  color: var(--a2-wine);
  font-size: 12px;
}

.a2-hero h1 {
  color: var(--a2-wine-dark);
  font-size: clamp(46px, 4.15vw, 60px);
  line-height: 1.02;
}

.a2-hero-copy > p:not(.a2-eyebrow) {
  max-width: 590px;
  margin-top: 22px;
  color: #594338;
  font-size: 17px;
  line-height: 1.8;
}

.a2-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 38px;
}

.a2-stats article {
  display: grid;
  justify-items: center;
  min-height: 116px;
  padding: 18px 10px 16px;
  border: 1px solid rgba(91, 51, 36, .16);
  border-radius: 6px;
  background: rgba(255, 252, 246, .74);
  box-shadow: 0 10px 24px rgba(67, 39, 27, .08);
  text-align: center;
}

.a2-stats svg {
  color: var(--a2-wine);
}

.a2-stats strong {
  margin-top: 10px;
  color: var(--a2-wine);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
}

.a2-stats span {
  margin-top: 8px;
  color: #66493a;
  font-size: 13px;
  line-height: 1.35;
}

.a2-origin {
  display: grid;
  grid-template-columns: 46% 54%;
  min-height: 430px;
  border-bottom: 1px solid var(--a2-line);
}

.a2-origin-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(42px, 6vw, 86px) clamp(40px, 8vw, 126px);
  background: var(--a2-paper);
}

.a2-origin h2,
.a2-timeline h2 {
  color: var(--a2-ink);
  font-size: clamp(38px, 4.5vw, 58px);
  line-height: 1.05;
}

.a2-origin-copy > p:not(.a2-eyebrow) {
  max-width: 540px;
  margin-top: 26px;
  color: #654a3e;
  font-size: 15px;
  line-height: 1.85;
}

.a2-origin ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  max-width: 660px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.a2-origin li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  color: #4e3429;
  font-size: 13px;
  line-height: 1.45;
}

.a2-origin li svg {
  color: var(--a2-wine);
}

.a2-origin-media {
  min-height: 430px;
  margin: 0;
}

.a2-origin-media img {
  filter: saturate(.92) contrast(1.04);
}

.a2-quote {
  display: flex;
  align-items: center;
  gap: clamp(24px, 2.5vw, 40px);
  min-height: 112px;
  padding: 18px clamp(48px, 10vw, 164px);
  background:
    linear-gradient(90deg, rgba(22, 12, 8, .99) 0%, rgba(22, 12, 8, .97) 56%, rgba(22, 12, 8, .66) 74%, rgba(22, 12, 8, .16) 100%),
    url("assets/home/gallery/nghe-nhan.jpg") center 43% / cover;
  color: #fff3df;
}

.a2-quote q {
  position: relative;
  display: block;
  max-width: 560px;
  padding-left: 68px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(18px, 1.45vw, 22px);
  line-height: 1.48;
}

.a2-quote q::before {
  content: "“";
  position: absolute;
  left: 0;
  top: -.36em;
  color: #d7ad77;
  font-size: 62px;
  line-height: 1;
}

.a2-quote span {
  flex: 0 0 auto;
  min-width: 130px;
  color: #fff3df;
  font-size: 13px;
  white-space: nowrap;
}

.a2-quote span::before {
  content: "";
  display: inline-block;
  width: 36px;
  height: 1px;
  margin: 0 10px 4px 0;
  background: rgba(255, 243, 223, .62);
}

.a2-timeline {
  display: grid;
  grid-template-columns: minmax(210px, 25%) 1fr;
  gap: clamp(26px, 4vw, 64px);
  min-height: 248px;
  padding: 24px clamp(42px, 7vw, 112px) 18px;
  border-bottom: 1px solid var(--a2-line);
  background: #fbf6ec url("assets/home/about-paper.jpg") left bottom / 58% auto no-repeat;
}

.a2-time-title {
  position: relative;
  min-height: 202px;
  overflow: hidden;
}

.a2-time-title .a2-eyebrow {
  margin-bottom: 4px;
  font-size: 10px;
  white-space: nowrap;
}

.a2-time-title .a2-eyebrow::before,
.a2-time-title .a2-eyebrow::after {
  display: none;
}

.a2-time-title h2 {
  position: relative;
  z-index: 2;
  font-size: clamp(26px, 2.1vw, 34px);
}

.a2-time-title > img {
  position: absolute;
  left: -5%;
  bottom: -15px;
  width: 100%;
  height: 145px;
  object-fit: cover;
  object-position: center 36%;
  opacity: .2;
  filter: grayscale(1) sepia(.55) contrast(.7) brightness(1.18);
  mix-blend-mode: multiply;
}

.a2-timeline ol {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 34px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.a2-timeline ol::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 8px;
  right: 8px;
  height: 1px;
  background: rgba(116, 21, 27, .34);
}

.a2-timeline li {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  text-align: center;
}

.a2-timeline strong {
  display: block;
  color: var(--a2-wine);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 20px;
  font-weight: 600;
}

.a2-timeline i {
  position: relative;
  display: block;
  width: 9px;
  height: 9px;
  margin: 6px 0 8px;
  border: 3px solid #fbf6ec;
  border-radius: 50%;
  background: var(--a2-wine);
  box-sizing: content-box;
}

.a2-timeline p {
  min-height: 54px;
  max-width: 170px;
  color: #5e4337;
  font-size: 10px;
  line-height: 1.45;
}

.a2-timeline li > img {
  width: min(100%, 158px);
  height: 70px;
  margin-top: auto;
  border-radius: 4px;
  object-fit: cover;
  box-shadow: 0 4px 10px rgba(66, 42, 28, .18);
}

.a2-values {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  background: #1d120d;
}

.a2-values article {
  position: relative;
  min-height: 230px;
  overflow: hidden;
  border-right: 1px solid rgba(255, 244, 226, .35);
}

.a2-values article:last-child {
  border-right: 0;
}

.a2-values article::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(23, 12, 8, .78), rgba(23, 12, 8, .28));
}

.a2-values div {
  position: absolute;
  z-index: 2;
  left: clamp(28px, 4vw, 70px);
  right: 34px;
  top: 50%;
  color: #fff3df;
  transform: translateY(-50%);
}

.a2-values h3 {
  margin-bottom: 14px;
  font-size: clamp(24px, 2.2vw, 32px);
}

.a2-values p {
  max-width: 340px;
  color: rgba(255, 243, 223, .82);
  font-size: 14px;
  line-height: 1.6;
}

.a2-team {
  padding: 46px clamp(42px, 7vw, 112px) 54px;
  background: var(--a2-paper);
  border-bottom: 1px solid var(--a2-line);
  text-align: center;
}

.a2-team > .a2-eyebrow {
  margin-inline: auto;
}

.a2-team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px;
  margin-top: 20px;
  text-align: left;
}

.a2-team article {
  display: grid;
  grid-template-columns: 164px 1fr;
  min-height: 178px;
  overflow: hidden;
  border: 1px solid rgba(91, 51, 36, .14);
  border-radius: 8px;
  background: rgba(255, 252, 246, .72);
  box-shadow: 0 12px 28px rgba(68, 39, 27, .08);
}

.a2-team article > div {
  padding: 26px 24px 18px;
}

.a2-team h3 {
  color: var(--a2-wine-dark);
  font-size: 24px;
}

.a2-team small {
  display: block;
  margin-top: 3px;
  color: var(--a2-brown);
  font-size: 13px;
  font-weight: 600;
}

.a2-team p {
  margin-top: 15px;
  color: #62473b;
  font-size: 14px;
  line-height: 1.62;
}

.a2-team em {
  display: block;
  margin-top: 13px;
  color: #5a382b;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 22px;
  font-style: italic;
}

.a2-cta {
  position: relative;
  display: grid;
  grid-template-columns: 44% 56%;
  min-height: 250px;
  overflow: hidden;
  background: #160d0a;
  color: #fff8ed;
}

.a2-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 8, 6, .92) 0 40%, rgba(13, 8, 6, .26));
  pointer-events: none;
}

.a2-cta-copy {
  position: relative;
  z-index: 2;
  padding: 44px clamp(40px, 7vw, 112px);
}

.a2-cta-copy > p {
  margin-bottom: 8px;
  color: #d9ac79;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.a2-cta h2 {
  font-size: clamp(36px, 4.4vw, 58px);
  line-height: 1.02;
}

.a2-cta-copy > span {
  display: block;
  max-width: 470px;
  margin-top: 16px;
  color: rgba(255, 248, 237, .82);
  font-size: 15px;
  line-height: 1.65;
}

.a2-cta-copy div {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
}

.a2-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid rgba(255, 248, 237, .42);
  border-radius: 4px;
  background: var(--a2-wine);
  color: #fff8ed;
  font-size: 13px;
  font-weight: 800;
  text-transform: none;
  transition: transform .22s ease, background .22s ease;
}

.a2-cta a + a {
  background: rgba(255, 248, 237, .08);
}

.a2-cta a:hover {
  background: #8e1c22;
  color: #fff8ed;
  transform: translateY(-2px);
}

.a2-cta figure {
  min-height: 250px;
  margin: 0;
}

.a2-footer {
  display: grid;
  grid-template-columns: 1.4fr .85fr 1fr 1.35fr 1.5fr;
  gap: clamp(26px, 4vw, 62px);
  padding: 44px clamp(42px, 7vw, 112px) 28px;
  background:
    radial-gradient(circle at 82% 20%, rgba(158, 54, 45, .42), transparent 28rem),
    linear-gradient(180deg, #73151b, #4a0c11);
  color: rgba(255, 244, 226, .88);
}

.a2-footer h2,
.a2-footer h3 {
  color: #fff4e2;
  font-family: "Playfair Display", Georgia, serif;
}

.a2-footer h2 {
  font-size: 30px;
  line-height: 1;
}

.a2-footer h3 {
  margin-bottom: 14px;
  font-size: 15px;
  font-family: Inter, system-ui, sans-serif;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.1px;
}

.a2-footer small {
  display: block;
  margin-top: 4px;
  color: rgba(255, 244, 226, .68);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.a2-footer p,
.a2-footer a {
  display: block;
  color: rgba(255, 244, 226, .78);
  font-size: 13px;
  line-height: 1.7;
}

.a2-footer a:hover {
  color: #fff;
}

.a2-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.a2-social a {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 244, 226, .32);
  border-radius: 50%;
}

.a2-footer form {
  display: grid;
  grid-template-columns: 1fr 44px;
  gap: 0;
  max-width: 280px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 244, 226, .42);
  border-radius: 5px;
  background: rgba(255, 248, 237, .1);
}

.a2-footer input {
  min-width: 0;
  height: 42px;
  border: 0;
  background: transparent;
  color: #fff8ed;
  padding: 0 14px;
  font: inherit;
  outline: none;
}

.a2-footer input::placeholder {
  color: rgba(255, 244, 226, .66);
}

.a2-footer button {
  border: 0;
  background: #fff4e2;
  color: var(--a2-wine-dark);
  font-size: 20px;
  cursor: pointer;
}

.a2-copy {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 244, 226, .16);
  text-align: center;
}

@media (max-width: 1180px) {
  .a2-header {
    grid-template-columns: 220px 1fr;
    gap: 18px;
    padding: 0 26px;
  }

  .a2-nav {
    justify-content: end;
    gap: 22px;
  }

  .a2-book {
    grid-column: 2;
    justify-self: end;
    min-height: 38px;
    margin-bottom: 14px;
  }

  .a2-hero {
    grid-template-columns: 1fr;
  }

  .a2-hero-media {
    min-height: 52vh;
  }

  .a2-hero-media::after {
    background: linear-gradient(180deg, rgba(16, 10, 8, .05), rgba(251, 246, 236, .92));
  }

  .a2-hero-copy {
    max-width: none;
    padding-top: 42px;
  }

  .a2-origin,
  .a2-timeline,
  .a2-cta {
    grid-template-columns: 1fr;
  }

  .a2-team-grid {
    grid-template-columns: 1fr;
  }

  .a2-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .a2-header {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    min-height: auto;
    padding: 18px 20px;
  }

  .a2-brand span {
    font-size: 22px;
  }

  .a2-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 0;
    overflow-x: auto;
    padding-top: 12px;
    scrollbar-width: none;
  }

  .a2-nav::-webkit-scrollbar {
    display: none;
  }

  .a2-nav a {
    flex: 0 0 auto;
    padding: 10px 14px;
    font-size: 13px;
  }

  .a2-nav a::after {
    bottom: 3px;
  }

  .a2-book {
    margin: 0 0 0 auto;
    padding: 0 14px;
  }

  .a2-hero {
    min-height: 0;
  }

  .a2-hero-media {
    min-height: 360px;
  }

  .a2-hero-copy {
    padding: 34px 22px 44px;
  }

  .a2-hero h1 {
    font-size: 43px;
  }

  .a2-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 34px;
  }

  .a2-origin-copy,
  .a2-timeline,
  .a2-team,
  .a2-cta-copy,
  .a2-footer {
    padding-inline: 22px;
  }

  .a2-origin ul,
  .a2-timeline ol,
  .a2-values {
    grid-template-columns: 1fr;
  }

  .a2-origin-media,
  .a2-values article,
  .a2-cta figure {
    min-height: 300px;
  }

  .a2-quote {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 36px 22px;
  }

  .a2-quote q {
    padding-left: 48px;
    font-size: 25px;
  }

  .a2-quote q::before {
    font-size: 54px;
  }

  .a2-timeline {
    gap: 20px;
    background-size: 120% auto;
  }

  .a2-time-title {
    min-height: 170px;
  }

  .a2-time-title > img {
    width: 280px;
  }

  .a2-timeline ol::before {
    display: none;
  }

  .a2-timeline ol {
    gap: 18px;
  }

  .a2-timeline li {
    display: grid;
    grid-template-columns: 60px 1fr 116px;
    align-items: center;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(116, 21, 27, .15);
    text-align: left;
  }

  .a2-timeline li:last-child {
    border-bottom: 0;
  }

  .a2-timeline li i {
    display: none;
  }

  .a2-timeline li p {
    min-height: 0;
    max-width: none;
  }

  .a2-timeline li > img {
    width: 116px;
    height: 70px;
    margin: 0;
  }

  .a2-team article {
    grid-template-columns: 118px 1fr;
  }

  .a2-team article > div {
    padding: 18px 16px;
  }

  .a2-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .a2-book {
    width: 100%;
    margin-top: 12px;
  }

  .a2-hero-media {
    min-height: 300px;
  }

  .a2-hero h1 {
    font-size: 38px;
  }

  .a2-stats {
    grid-template-columns: 1fr;
  }

  .a2-team article {
    grid-template-columns: 1fr;
  }

  .a2-team article img {
    height: 220px;
  }
}