.page-about {
  --about-gold-glow: rgba(212, 175, 55, 0.35);
  --about-stroke-gold: rgba(212, 175, 55, 0.22);
  --about-paper: rgba(23, 23, 23, 0.9);
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  overflow-x: hidden;
}

/* ===== 英雄区 ===== */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 110px;
  background:
    radial-gradient(ellipse at 82% 16%, rgba(212, 175, 55, 0.18), transparent 46%),
    linear-gradient(150deg, var(--black) 0%, var(--charcoal) 62%, #0d0d0d 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), 0 100%);
}

.page-about .about-hero .diagonal-line {
  position: absolute;
  right: -120px;
  top: 18%;
  width: 340px;
  height: 700px;
  background: repeating-linear-gradient(135deg, rgba(212, 175, 55, 0.14) 0 2px, transparent 2px 18px);
  transform: rotate(20deg);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 44px;
}

.page-about .about-hero__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-about .about-hero__eyebrow {
  margin: 22px 0 14px;
  color: var(--gold);
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: 0.12em;
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(36px, 7vw, 68px);
  line-height: 1.08;
  color: var(--white);
  letter-spacing: 0.01em;
}

.page-about .about-hero__sub {
  margin: 16px 0 0;
  color: var(--gold);
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-about .about-hero__desc {
  margin: 18px 0 0;
  max-width: 660px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-about .about-hero__showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
}

.page-about .about-hero__highlight {
  position: relative;
  min-width: 240px;
  padding: 40px 30px 34px;
  background: linear-gradient(145deg, #1c1c1c 0%, #0f0f0f 100%);
  border: 1px solid rgba(212, 175, 55, 0.4);
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: rotate(4deg);
}

.page-about .about-hero__highlight::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(212, 175, 55, 0.38);
  pointer-events: none;
}

.page-about .about-hero__since {
  display: block;
  color: var(--red);
  font-size: 13px;
  letter-spacing: 0.3em;
  margin-bottom: 8px;
}

.page-about .about-hero__year {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(88px, 16vw, 168px);
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 2px var(--gold);
}

.page-about .about-hero__slogan {
  display: block;
  margin-top: 14px;
  color: var(--silver);
  font-size: 12px;
  letter-spacing: 0.18em;
  line-height: 1.6;
}

/* ===== 编号章节体系 ===== */
.page-about .about-section {
  position: relative;
  padding: 84px 0;
}

.page-about#about-origin,
.page-about .about-origin {
  background: var(--black);
}

.page-about .about-journey {
  background: linear-gradient(180deg, #101010 0%, var(--black) 100%);
}

.page-about .about-habit {
  background: var(--charcoal);
}

.page-about .about-mission {
  background: var(--black);
}

.page-about .about-awards {
  background: linear-gradient(180deg, #111111 0%, #0c0c0c 100%);
}

.page-about .about-section__head {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 44px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.26);
}

.page-about .about-section__no {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: clamp(64px, 11vw, 118px);
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 2px var(--about-stroke-gold);
  white-space: nowrap;
}

.page-about .about-section__label {
  margin: 6px 0 4px;
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.page-about .about-section__headline h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(30px, 5vw, 52px);
  color: var(--white);
  line-height: 1.1;
}

.page-about .about-section__headline {
  padding-top: 6px;
}

/* ===== 01 品牌起源 ===== */
.page-about .about-origin__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-origin__image {
  position: relative;
  border: 1px solid rgba(212, 175, 55, 0.36);
  box-shadow: var(--shadow-lg);
  background: var(--charcoal-soft);
  transition: transform 300ms var(--about-ease);
}

.page-about .about-origin__image:hover {
  transform: rotate(-1deg);
}

.page-about .about-origin__image::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(212, 175, 55, 0.22);
  pointer-events: none;
}

.page-about .about-origin__image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-origin__copy p {
  margin: 0 0 18px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-origin__copy strong {
  color: var(--gold);
  font-weight: 700;
}

.page-about .about-origin__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.page-about .about-origin__stats > div {
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid rgba(212, 175, 55, 0.22);
  padding: 16px 8px;
  text-align: center;
}

.page-about .about-origin__stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(26px, 4vw, 40px);
  color: var(--gold);
  line-height: 1;
}

.page-about .about-origin__stat-label {
  display: block;
  margin-top: 8px;
  color: var(--silver);
  font-size: 13px;
}

/* ===== 02 发展历程 ===== */
.page-about .about-journey__lead {
  margin-bottom: 36px;
}

.page-about .about-journey__lead p {
  margin: 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.8;
  border-left: 3px solid var(--gold);
  padding-left: 16px;
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 28px;
  margin: 44px 0 40px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold) 0%, rgba(212, 175, 55, 0.12) 50%, var(--gold) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 44px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--black);
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 6px rgba(212, 175, 55, 0.14);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--white);
}

.page-about .about-timeline__tag {
  display: inline-flex;
  margin: 8px 0 10px;
  padding: 3px 10px;
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.08);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .about-timeline__card {
  background: var(--charcoal-soft);
  border-left: 3px solid var(--gold);
  padding: 18px 20px;
  box-shadow: var(--shadow-md);
}

.page-about .about-timeline__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--white);
}

.page-about .about-timeline__card p {
  margin: 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .about-journey__milestone {
  border: 1px solid rgba(212, 175, 55, 0.3);
  box-shadow: var(--shadow-md);
}

.page-about .about-journey__milestone img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 03 每日打卡理念 ===== */
.page-about .about-habit__grid {
  display: grid;
  gap: 44px;
}

.page-about .about-habit__copy p {
  margin: 0 0 18px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-habit__copy strong {
  color: var(--gold);
  font-weight: 700;
}

.page-about .about-habit__list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-habit__list li {
  position: relative;
  padding: 12px 16px 12px 42px;
  background: rgba(26, 26, 26, 0.85);
  border: 1px solid rgba(212, 175, 55, 0.2);
  color: var(--silver);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .about-habit__list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  width: 10px;
  height: 10px;
  background: var(--red);
  transform: rotate(45deg);
}

.page-about .about-habit__visual {
  display: grid;
  gap: 28px;
  justify-items: center;
}

.page-about .about-habit__ring {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px dashed rgba(212, 175, 55, 0.6);
  background: radial-gradient(circle, rgba(212, 175, 55, 0.16) 0%, transparent 65%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.page-about .about-habit__ring-no {
  font-family: var(--font-heading);
  font-size: 46px;
  color: var(--gold);
  line-height: 1;
}

.page-about .about-habit__ring-text {
  margin-top: 10px;
  color: var(--silver);
  font-size: 12px;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.page-about .about-habit__flow {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.page-about .about-habit__step {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--charcoal-soft);
  border: 1px solid rgba(212, 175, 55, 0.28);
  padding: 10px 14px;
  color: var(--white);
  font-size: 14px;
}

.page-about .about-habit__step-no {
  color: var(--red);
  font-weight: 700;
}

/* ===== 04 平台使命 ===== */
.page-about .about-mission__card {
  position: relative;
  background: linear-gradient(120deg, rgba(212, 175, 55, 0.18), rgba(30, 30, 30, 0.7) 55%, rgba(212, 175, 55, 0.1));
  border: 1px solid rgba(212, 175, 55, 0.45);
  box-shadow: var(--shadow-lg);
  padding: 40px 24px;
  text-align: center;
}

.page-about .about-mission__quote {
  margin: 0 auto;
  max-width: 860px;
  font-family: var(--font-heading);
  font-size: clamp(22px, 4vw, 38px);
  line-height: 1.45;
  color: var(--white);
}

.page-about .about-mission__badge {
  width: 120px;
  height: 120px;
  margin: 28px auto 0;
  border-radius: 50%;
  border: 2px solid var(--gold);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.page-about .about-mission__badge img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.page-about .about-mission__values {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-about .about-mission__value {
  position: relative;
  background: var(--charcoal);
  border-top: 3px solid var(--gold);
  padding: 24px 20px 24px 24px;
  overflow: hidden;
}

.page-about .about-mission__value-no {
  position: absolute;
  top: 6px;
  right: 14px;
  font-family: var(--font-heading);
  font-size: 56px;
  color: rgba(212, 175, 55, 0.2);
  pointer-events: none;
}

.page-about .about-mission__value h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--white);
  font-family: var(--font-heading);
}

.page-about .about-mission__value p {
  margin: 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
}

/* ===== 05 成就与荣誉 ===== */
.page-about .about-awards__grid {
  display: grid;
  gap: 14px;
}

.page-about .about-awards__item {
  background: var(--charcoal-soft);
  border: 1px solid rgba(212, 175, 55, 0.24);
  padding: 28px 18px;
  text-align: center;
  transition: transform 220ms var(--about-ease), border-color 220ms var(--about-ease);
}

.page-about .about-awards__item:hover {
  border-color: var(--gold);
  transform: translateY(-6px);
}

.page-about .about-awards__num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1;
  color: var(--gold);
}

.page-about .about-awards__label {
  display: block;
  margin-top: 12px;
  color: var(--silver);
  font-size: 14px;
}

.page-about .about-awards__item--wide {
  grid-column: 1 / -1;
}

.page-about .about-awards__item--gold {
  background: linear-gradient(140deg, rgba(212, 175, 55, 0.22), rgba(26, 26, 26, 0.85));
  border-color: rgba(212, 175, 55, 0.5);
}

.page-about .about-awards__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

/* ===== 页面导航路径 ===== */
.page-about .about-path {
  padding: 48px 0 100px;
  background: var(--black);
}

.page-about .about-path__inner {
  display: grid;
  gap: 14px;
}

.page-about .about-path__card {
  display: block;
  background: var(--charcoal-soft);
  border: 1px solid rgba(212, 175, 55, 0.26);
  padding: 22px 24px;
  color: var(--white);
  text-decoration: none;
  transition: background 220ms var(--about-ease), border-color 220ms var(--about-ease);
}

.page-about .about-path__card:hover {
  border-color: var(--gold);
  background: rgba(212, 175, 55, 0.12);
}

.page-about .about-path__label {
  display: block;
  color: var(--red);
  font-size: 12px;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
}

.page-about .about-path__title {
  font-size: 16px;
  font-weight: 700;
}

/* ===== 窄屏基础适配 ===== */
@media (max-width: 399px) {
  .page-about .about-origin__stats {
    grid-template-columns: 1fr;
  }

  .page-about .about-hero__actions,
  .page-about .about-awards__cta {
    width: 100%;
  }

  .page-about .about-hero__actions .btn,
  .page-about .about-awards__cta .btn {
    width: 100%;
  }
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-about .about-hero__inner {
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
  }

  .page-about .about-origin__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-habit__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-mission__values {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-awards__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== 桌面 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 96px 0 140px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 72px;
  }

  .page-about .about-section {
    padding: 110px 0;
  }

  .page-about .about-origin__grid {
    gap: 72px;
  }

  .page-about .about-awards__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-path__inner {
    grid-template-columns: repeat(4, 1fr);
  }

  /* 时间线双列错锋布局 */
  .page-about .about-timeline::before {
    left: 50%;
    margin-left: -1px;
  }

  .page-about .about-timeline__item {
    width: 50%;
    padding: 0 56px 36px 0;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 36px 56px;
  }

  .page-about .about-timeline__item:nth-child(odd) {
    text-align: right;
  }

  .page-about .about-timeline__item::before {
    left: auto;
    right: -13px;
    top: 30px;
  }

  .page-about .about-timeline__item:nth-child(even)::before {
    left: -13px;
    right: auto;
  }

  .page-about .about-timeline__item:nth-child(odd) .about-timeline__card {
    border-left: 0;
    border-right: 3px solid var(--gold);
  }

  .page-about .about-journey__milestone {
    max-width: 860px;
    margin: 8px auto 0;
  }
}