/* ===== 品牌总览 / page-about ===== */

.page-about .about-hero{
  position: relative;
  padding: clamp(16px,3vw,28px) 0 clamp(36px,6vw,76px);
  overflow: hidden;
  border-bottom: var(--bw) solid var(--line);
  background:
    radial-gradient(900px 380px at 92% -14%, rgba(198,255,61,.11), transparent 62%),
    radial-gradient(620px 300px at 4% 108%, rgba(255,122,26,.09), transparent 68%);
}

.page-about .about-hero__grid{
  display: grid;
  gap: clamp(26px,4vw,44px);
  align-items: start;
  margin-top: clamp(14px,2.4vw,24px);
}

@media (min-width: 880px){
  .page-about .about-hero__grid{
    grid-template-columns: minmax(0,1.32fr) minmax(0,.85fr);
    gap: clamp(32px,4vw,60px);
    align-items: end;
  }
}

.page-about h1{
  margin: clamp(8px,1.6vw,14px) 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px,6.4vw,66px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-about .about-hero__lede .lead{
  margin-top: clamp(14px,2vw,20px);
  max-width: 48ch;
  font-size: clamp(15px,1.7vw,18px);
  line-height: 1.8;
  color: var(--muted);
}

/* 首屏数据条 */
.page-about .hero-stats{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  margin-top: clamp(20px,3.2vw,34px);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
  background: var(--field);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.page-about .hero-stats > div{
  padding: clamp(10px,1.8vw,18px);
  border-right: var(--bw) solid var(--line);
  min-width: 0;
}

.page-about .hero-stats > div:last-child{
  border-right: 0;
}

.page-about .hero-stats b{
  display: block;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: clamp(19px,3.6vw,30px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--lime);
  white-space: nowrap;
}

.page-about .hero-stats span{
  display: block;
  margin-top: 8px;
  font-size: clamp(11px,1.4vw,12.5px);
  line-height: 1.45;
  color: var(--muted);
}

/* 首屏图 */
.page-about .about-hero__fig{
  margin: 0;
}

.page-about .about-hero__fig .media-frame{
  border-radius: var(--radius);
}

.page-about .about-hero__fig figcaption{
  margin-top: 12px;
  padding-left: 10px;
  border-left: 3px solid var(--orange);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* 面包屑微调 */
.page-about .breadcrumb{
  padding-top: clamp(6px,1.4vw,12px);
}

/* ===== 正文：索引 + 章节 ===== */
.page-about .about-body{
  display: grid;
  gap: 0;
  padding-top: clamp(10px,2vw,20px);
  padding-bottom: clamp(44px,7vw,96px);
}

@media (min-width: 940px){
  .page-about .about-body{
    grid-template-columns: 190px minmax(0,1fr);
    gap: clamp(30px,4vw,64px);
    align-items: start;
  }
}

.page-about .about-toc{
  display: none;
}

@media (min-width: 940px){
  .page-about .about-toc{
    display: block;
    position: sticky;
    top: clamp(88px,11vh,120px);
    padding-top: clamp(26px,4vw,44px);
  }
}

.page-about .about-toc__title{
  margin: 0 0 14px;
  font-family: var(--font-numeric);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-about .about-toc ol{
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--line);
}

.page-about .about-toc a{
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-left: -2px;
  padding: 9px 0 9px 14px;
  border-left: 2px solid transparent;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-about .about-toc a:hover,
.page-about .about-toc a:focus-visible{
  color: var(--lime);
  border-left-color: var(--lime);
  background: rgba(198,255,61,.06);
}

.page-about .about-toc a:focus-visible{
  outline: 3px solid var(--lime);
  outline-offset: 2px;
}

.page-about .toc-num{
  font-family: var(--font-numeric);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--orange);
}

/* 章节 */
.page-about .chapter{
  padding: clamp(28px,5vw,52px) 0;
  border-top: var(--bw) solid var(--line);
}

.page-about .about-chapters > .chapter:first-child{
  border-top: 0;
  padding-top: clamp(18px,3vw,30px);
}

.page-about .chapter__head{
  display: flex;
  align-items: flex-start;
  gap: clamp(12px,2vw,22px);
  margin-bottom: clamp(16px,2.8vw,28px);
}

.page-about .chapter__num{
  flex: none;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: clamp(26px,4vw,42px);
  line-height: .88;
  letter-spacing: -0.05em;
  color: var(--orange);
}

.page-about .chapter__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px,3.4vw,34px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .chapter__title::after{
  content: "";
  display: block;
  width: 44px;
  height: 4px;
  margin-top: 10px;
  border-radius: 2px;
  background: var(--lime);
}

.page-about .chapter p{
  margin: 0 0 14px;
  font-size: clamp(15px,1.6vw,17px);
  line-height: 1.8;
  color: var(--paper);
}

.page-about .chapter p:last-child{
  margin-bottom: 0;
}

.page-about .chapter p.muted,
.page-about .muted{
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .chapter a{
  color: var(--lime);
  text-decoration: none;
  border-bottom: 2px solid rgba(198,255,61,.42);
  transition: border-color var(--ease), color var(--ease);
}

.page-about .chapter a:hover{
  color: var(--lime-soft);
  border-bottom-color: var(--lime-soft);
}

.page-about .chapter a:focus-visible{
  outline: 3px solid var(--lime);
  outline-offset: 3px;
}

/* 01 需求三条 */
.page-about .need-list{
  list-style: none;
  margin: clamp(18px,3vw,30px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(14px,2vw,24px);
}

@media (min-width: 760px){
  .page-about .need-list{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
}

.page-about .need-list li{
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--line);
  transition: border-color var(--ease), transform var(--ease);
}

.page-about .need-list li:hover{
  border-left-color: var(--lime);
  transform: translateY(-4px);
}

.page-about .need-k{
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-about .need-list p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 02 覆盖数据带 */
.page-about .cov-strip{
  display: grid;
  grid-template-columns: 1fr;
  margin: 0 0 clamp(18px,3vw,28px);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
  background: var(--field);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

@media (min-width: 620px){
  .page-about .cov-strip{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
}

.page-about .cov-strip > div{
  padding: clamp(16px,2.4vw,26px);
  border-bottom: var(--bw) solid var(--line);
  min-width: 0;
}

.page-about .cov-strip > div:last-child{
  border-bottom: 0;
}

@media (min-width: 620px){
  .page-about .cov-strip > div{
    border-bottom: 0;
    border-right: var(--bw) solid var(--line);
  }
  .page-about .cov-strip > div:last-child{
    border-right: 0;
  }
}

.page-about .cov-strip b{
  display: block;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: clamp(34px,6vw,56px);
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--lime);
}

.page-about .cov-strip .is-accent b{
  color: var(--orange);
}

.page-about .cov-strip span{
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* 03 流程 */
.page-about .process-grid{
  display: grid;
  gap: clamp(22px,3.4vw,40px);
}

@media (min-width: 820px){
  .page-about .process-grid{
    grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr);
    gap: clamp(24px,3.6vw,46px);
    align-items: start;
  }
}

.page-about .flow{
  list-style: none;
  margin: clamp(16px,2.6vw,24px) 0;
  padding: 0 0 0 20px;
  border-left: 2px solid var(--line);
}

.page-about .flow li{
  position: relative;
  padding-bottom: clamp(16px,2.4vw,24px);
}

.page-about .flow li:last-child{
  padding-bottom: 0;
}

.page-about .flow li::before{
  content: "";
  position: absolute;
  left: -27px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
}

.page-about .flow__n{
  display: block;
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-about .flow h3{
  margin: 5px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px,2vw,21px);
  line-height: 1.2;
  color: var(--paper);
}

.page-about .flow p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .process-fig{
  margin: 0;
}

.page-about .process-fig .media-frame{
  border-radius: var(--radius);
}

.page-about .process-fig figcaption{
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* 04 团队条形图 */
.page-about .team-bars{
  list-style: none;
  margin: clamp(18px,3vw,28px) 0 clamp(14px,2.4vw,20px);
  padding: 0;
}

.page-about .team-bars li{
  display: grid;
  grid-template-columns: 74px minmax(0,1fr) 44px;
  align-items: center;
  gap: clamp(8px,1.6vw,16px);
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .team-bars li:first-child{
  border-top: 1px solid var(--line);
}

.page-about .team-bars__label{
  font-size: 13.5px;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .team-bars__track{
  display: block;
  height: 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--field-2);
  overflow: hidden;
}

.page-about .team-bars__fill{
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--lime), var(--lime-soft));
}

.page-about .team-bars__fill.w1{ width: 100%; }
.page-about .team-bars__fill.w2{ width: 66.7%; }
.page-about .team-bars__fill.w3{ width: 44.4%; }

.page-about .team-bars__val{
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 17px;
  text-align: right;
  color: var(--lime);
}

/* 05 合作生态 */
.page-about .eco-grid{
  display: grid;
  gap: clamp(20px,3.2vw,36px);
}

@media (min-width: 860px){
  .page-about .eco-grid{
    grid-template-columns: minmax(0,.82fr) minmax(0,1.18fr);
    gap: clamp(24px,3.4vw,44px);
    align-items: start;
  }
}

.page-about .eco-fig{
  margin: 0;
}

.page-about .eco-fig .media-frame{
  border-radius: var(--radius);
}

.page-about .eco-copy > p{
  margin-bottom: clamp(14px,2.4vw,20px);
}

.page-about .eco-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(10px,1.8vw,16px);
}

.page-about .eco-list li{
  display: grid;
  grid-template-columns: 46px minmax(0,1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(12px,1.8vw,18px);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
  background: var(--field);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-about .eco-list li:hover{
  transform: translateY(-4px);
  border-color: var(--lime);
  box-shadow: var(--shadow-hard);
}

.page-about .eco-badge{
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px solid var(--lime);
  background: var(--field-2);
  font-family: var(--font-numeric);
  font-weight: 700;
  font-size: 16px;
  color: var(--lime);
}

.page-about .eco-list h3{
  margin: 2px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px,1.9vw,19px);
  line-height: 1.2;
  color: var(--paper);
}

.page-about .eco-list p{
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 06 承诺与荣誉 */
.page-about .pledge{
  margin: 0 0 clamp(18px,3vw,26px);
  padding: clamp(18px,3vw,28px);
  border: var(--bw) solid var(--line);
  border-left: 8px solid var(--orange);
  border-radius: var(--radius);
  background: var(--field);
  box-shadow: var(--shadow-hard);
}

.page-about .pledge p{
  margin: 0;
  font-size: clamp(16px,2vw,19px);
  line-height: 1.72;
  color: var(--paper);
}

.page-about .honor-list{
  list-style: none;
  margin: 0 0 clamp(16px,2.6vw,24px);
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .honor-list li{
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-about .honor-list li::before{
  content: "◆";
  position: absolute;
  left: 0;
  top: .5em;
  font-size: 10px;
  line-height: 1;
  color: var(--lime);
}

/* 结尾行动区 */
.page-about .about-cta{
  margin-top: clamp(26px,4.5vw,46px);
  padding: clamp(22px,3.6vw,38px);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(118deg, rgba(198,255,61,.12), transparent 56%),
    var(--field-2);
  box-shadow: var(--shadow-hard-lg);
}

.page-about .about-cta h2{
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px,3.2vw,32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-cta p{
  margin: 0 0 clamp(16px,2.6vw,22px);
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-cta__links{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 图片自适应兜底 */
.page-about img{
  max-width: 100%;
  height: auto;
  display: block;
}

@media (prefers-reduced-motion: reduce){
  .page-about *,
  .page-about *::before,
  .page-about *::after{
    transition: none !important;
    animation: none !important;
  }
}