/* about-home.css（首页子集）
   首页专用子集 —— 由 .tmpchk/homeopt/gen_subset.js 依据线上首页全量 class 覆盖率生成
   源文件保留给其他页面，请勿手工编辑本文件；页面结构变化后需重新生成 */
/* ---------- 通用容器 ---------- */
.ab-wrap{width:min(calc(100% - 40px),1240px);margin:0 auto}
/* 模块一屏原则：区块内边距收紧（发展历程除外） */
.ab-sec{padding:clamp(42px,4.6vw,62px) 0;position:relative}
#abHistory{padding:clamp(46px,5vw,72px) 0}
/* 优势舞台区（v7 参考英文站改浅色系：淡绿渐变背景，阅读更轻松） */
.ab-sec--dark{overflow:hidden;color:var(--body);
  background:radial-gradient(900px 480px at 10% -8%,rgba(46,229,91,.10),transparent 55%),
             radial-gradient(760px 420px at 90% 108%,rgba(1,213,148,.10),transparent 55%),
             linear-gradient(180deg,#f7fcf9 0%,#edf8f1 100%)}
.ab-sec--dark::before{content:"";position:absolute;inset:-10% -20% 0;pointer-events:none;
  background-image:linear-gradient(rgba(37,160,99,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(37,160,99,.055) 1px,transparent 1px);
  background-size:46px 46px;
  transform:perspective(700px) rotateX(28deg) scale(1.5);transform-origin:50% 100%;
  -webkit-mask-image:linear-gradient(180deg,transparent 4%,#000 34%,transparent 92%);
          mask-image:linear-gradient(180deg,transparent 4%,#000 34%,transparent 92%)}
/* 顶部光斑：缓慢漂移动效 */
.ab-sec--dark::after{content:"";position:absolute;left:50%;top:-160px;width:520px;height:520px;
  transform:translateX(-50%);pointer-events:none;border-radius:50%;
  background:radial-gradient(circle,rgba(1,213,148,.13),transparent 65%);
  animation:abOrb 9s ease-in-out infinite alternate}

@keyframes abOrb{
  from{transform:translateX(-50%) translateY(0) scale(1)}
  to{transform:translateX(-50%) translateY(48px) scale(1.12)}
}
.ab-sec--dark>.ab-wrap{position:relative;z-index:2}
.ab-sec--dark .ab-sh h2{color:var(--ink)}
.ab-sec--dark .ab-sh p{color:var(--mut)}
.ab-sec--dark .ab-stag{background:#fff;border-color:#bfe6cd;color:var(--gd)}
/* ---------- 区块标题 ---------- */
.ab-sh{text-align:center;margin-bottom:clamp(22px,2.8vw,38px)}
.ab-stag{display:flex;width:fit-content;margin:0 auto 14px;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(180deg,#eafcf6 0%,#d6f4e7 100%);
  border:1px solid #bfeadb;box-shadow:0 4px 12px rgba(25,120,75,.06);
  color:var(--gd);font-size:clamp(12px,1vw,13.5px);font-weight:800;
  padding:7px 22px;border-radius:100px;
  letter-spacing:2.6px;white-space:nowrap;text-transform:uppercase;
  transition:box-shadow .3s,transform .3s}
.ab-stag:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(25,120,75,.12)}
/* 英文站同款：淡绿底 + 深绿 NGO 标签 */
.ab-sh h2{font-size:clamp(24px,2.9vw,42px);color:var(--ink);letter-spacing:-.5px;display:inline-block}
/* 标题下划线：入场后从左向右展开 */
.ab-motion .ab-sh h2{background-image:linear-gradient(90deg,var(--g),var(--gl));
  background-repeat:no-repeat;background-size:0 3px;background-position:50% 100%;
  padding-bottom:6px;transition:background-size .9s cubic-bezier(.2,.7,.3,1) .35s}
.ab-motion .ab-sh.is-in h2{background-size:min(140px,42%) 3px}
.ab-sh p{margin-top:12px;margin-left:auto;margin-right:auto;max-width:680px;
  font-size:clamp(14px,1.15vw,17px);color:var(--mut);line-height:1.8}

@keyframes abShine{0%,55%{left:-70%}75%,100%{left:130%}}
.ab-sec.is-off,.ab-sec.is-off::after,.ab-sec.is-off::before,.ab-sec.is-off *,.ab-sec.is-off *::before,.ab-sec.is-off *::after{animation-play-state:paused!important}
/* ---------- 滚动入场动效（由 JS 添加 .ab-motion / .is-in） ---------- */
.ab-motion .ab-anim{opacity:0}
/* is-in 后基准态必须回到可见（from-only 关键帧的结束态=基准态） */
.ab-motion .ab-anim.is-in{opacity:1;animation:abUp .65s cubic-bezier(.22,.7,.3,1) backwards}
.ab-motion .ab-anim[data-tilt].is-in{animation-name:abFade}
/* 只定义 from：结束态即元素本态，不劫持 hover 过渡 */
@keyframes abUp{from{opacity:0;transform:translateY(24px)}}

@keyframes abFade{from{opacity:0}}

@keyframes abPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(61,220,132,.45)}
  55%{box-shadow:0 0 0 7px rgba(61,220,132,0)}
}
/* ============================================================
   3. 公司简介（模仿英文站：左图 + 引号文案 + 关键数字条）
   ============================================================ */
#abIntro{background:#fff;overflow:hidden}
#abIntro::before{content:"ABOUT SKYCO2";position:absolute;left:50%;top:clamp(10px,2vw,26px);
  transform:translateX(-50%);white-space:nowrap;pointer-events:none;
  font-size:clamp(58px,8.6vw,122px);font-weight:900;letter-spacing:.06em;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(25,100,60,.07)}

@keyframes abRing{
  0%{transform:scale(.86);opacity:.9}
  70%,100%{transform:scale(1.25);opacity:0}
}
/* ============================================================
   4. 我们的优势（Why choose us? 编号卡 + 60% 数据框 + 机构合作跑马灯）
   ============================================================ */
#abAdv{padding:clamp(24px,2.8vw,34px) 0}
#abAdv .ab-sh{margin-bottom:clamp(12px,1.6vw,18px)}
#abAdv .ab-sh p{margin-top:8px}
/* 不规则布局：01 特性卡通栏 / 02 窄卡（列表竖排、配图矮）/ 03 宽卡（数据三项横排）/ 04 机构合作通栏 */
.ab-why{display:grid;grid-template-columns:.82fr 1.18fr;
  gap:clamp(12px,1.5vw,18px)}
.ab-why-feat{grid-column:1/-1}
.ab-why-partner{grid-column:1/-1}
.ab-why-feat,.ab-why-card,.ab-why-partner{position:relative;
  min-width:0;overflow:hidden;
  background:linear-gradient(to bottom,#e4f9f66b 0%,#96ecd5 100%);
  border:1px solid #c8ecd9;border-radius:clamp(16px,1.8vw,22px);
  padding:clamp(16px,1.6vw,22px) clamp(18px,1.9vw,26px);
  display:flex;flex-direction:column;
  box-shadow:0 10px 30px rgba(20,90,50,.07),inset 0 1px 0 rgba(255,255,255,.9);
  transition:box-shadow .35s,border-color .35s}
.ab-why-feat:hover,.ab-why-card:hover,.ab-why-partner:hover{border-color:#7fd2ac;
  box-shadow:0 28px 58px rgba(20,90,50,.15),inset 0 1px 0 rgba(255,255,255,.95)}
/* 01 特性卡：英文站 i3Warp1 同款白底（页面白底 + 亮绿渐变图框） */
.ab-why-feat{background:linear-gradient(180deg,#ffffff 0%,#f4fcf8 100%);
  border-color:#d8efe2}
/* 01 特性卡内部：左文右图 */
.ab-why-feat{display:grid;grid-template-columns:1.02fr .98fr;
  gap:clamp(16px,2vw,28px);align-items:stretch}
.ab-why-ftx{display:flex;flex-direction:column;min-width:0}
/* 配图区：英文站同款绿色描边（加粗），与左列等高、宽度略窄，底部白色渐进淡化 */
.ab-why-fimg{position:relative;min-width:0;align-self:stretch;
  width:min(100%,89%);margin-left:auto;
  border-radius:clamp(14px,1.6vw,20px);overflow:hidden;line-height:0;
  border:5px solid #2ee55b;
  background:linear-gradient(180deg,#0c2b1e 0%,#0c2b1e 46%,#ffffff 100%);
  box-shadow:0 10px 26px rgba(15,120,70,.18)}
.ab-why-fimg img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;display:block;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 44%,rgba(0,0,0,.55) 68%,rgba(0,0,0,.18) 86%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,#000 44%,rgba(0,0,0,.55) 68%,rgba(0,0,0,.18) 86%,transparent 100%)}
.ab-why-feat h3,.ab-why-card h3,.ab-why-partner h3{
  position:relative;z-index:1;letter-spacing:.2px;font-weight:800;
  font-size:clamp(16px,1.3vw,19px);color:var(--ink);margin:0}
.ab-why-feat h3{font-size:clamp(17px,1.5vw,22px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ab-why-card h3{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* 02/03 卡右上角定制 icon 水印（盾牌/层叠数据/客户群体/证书徽章） */
.ab-why-card::after,.ab-why-partner::after{content:"";position:absolute;right:clamp(14px,1.6vw,22px);
  top:clamp(12px,1.4vw,18px);width:clamp(46px,4.4vw,62px);height:clamp(46px,4.4vw,62px);
  background:center/contain no-repeat;opacity:.32;pointer-events:none;z-index:0;
  transition:opacity .3s,transform .3s}
.ab-why-card--1::after{background-image:url(/static/theme/images/icons/about-ic-2.svg)}
.ab-why-card--2::after{background-image:url(/static/theme/images/icons/about-ic-3.svg)}
.ab-why-partner::after{background-image:url(/static/theme/images/icons/about-ic-4.svg)}
.ab-why-card:hover::after,.ab-why-partner:hover::after{opacity:.9;transform:scale(1.06)}
/* 02/03 卡底部配图：透明 PNG 直接贴卡片渐变底，无边框无底色 */
.ab-why-cimg{position:relative;margin-top:clamp(10px,1.2vw,16px);
  flex:1 1 auto;min-height:clamp(108px,10.5vw,140px);line-height:0}
.ab-why-cimg img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:contain;object-position:center bottom;display:block;
  transition:transform .5s}
/* 02/03 卡整体再紧凑（反馈：内容间距小一点）——只压 2/3 卡，01/04 不动 */
.ab-why-card{padding:clamp(13px,1.3vw,18px) clamp(15px,1.6vw,22px)}
.ab-why-card .ab-why-head{margin-bottom:clamp(6px,.8vw,10px)}
.ab-why-card .ab-why-cimg{margin-top:clamp(6px,.8vw,10px)}
.ab-why-card .ab-adv-list{gap:4px 16px}
.ab-why-card .ab-adv-list li{line-height:1.5}
.ab-why-card .ab-adv-list li.is-group{margin-top:3px;padding-top:5px}
/* 02 卡：窄列 + 列表竖排 + 配图为裁剪后的宽条（contain 居中不裁切） */
.ab-why-card--1 .ab-adv-list{grid-template-columns:1fr;gap:4px}
.ab-why-card--1 .ab-why-cimg{min-height:clamp(64px,6.2vw,86px)}
.ab-why-card--1 .ab-why-cimg img{object-position:center bottom;transition:none}
/* 03 卡：宽列，每组下的数据项横向一行排布（压低整体高度）；
   配图为英文站例图构图的样机图（自带倾斜+裁切+悬浮卡），cover 顶部对齐展示 */
.ab-why-card--2 .ab-adv-list{grid-template-columns:repeat(3,1fr);gap:4px 12px}
.ab-why-card--2 .ab-why-cimg{min-height:clamp(124px,11.8vw,164px);
  margin-top:clamp(4px,.5vw,8px);overflow:hidden;
  border-radius:clamp(10px,1.2vw,14px)}
.ab-why-card--2 .ab-why-cimg img{object-fit:cover;object-position:center top}
.ab-why-card:hover .ab-why-cimg img{transform:scale(1.04)}
.ab-adv-list{position:relative;z-index:1;text-align:left;
  display:grid;grid-template-columns:1fr 1fr;gap:6px 18px}
/* 01 卡列表与 L5 数据框之间拉开距离（反馈：黑框与上方文字太近） */
.ab-why-feat .ab-adv-list{margin-bottom:clamp(18px,2.2vw,28px)}
/* 分组小标题独占整行 */
.ab-adv-list li{grid-column:1/-1;display:flex;gap:8px;align-items:flex-start;
  font-size:clamp(12.5px,1vw,14px);line-height:1.55;color:#3d5c4c}
.ab-adv-list li:not(.is-group){grid-column:auto;break-inside:avoid}
.ab-adv-list li::before{content:"";flex:none;width:5px;height:5px;border-radius:50%;
  background:var(--g);margin-top:.6em;box-shadow:0 0 6px rgba(37,160,99,.45)}
.ab-adv-list li.is-group{font-weight:800;color:#147a4b;margin-top:5px;
  padding-top:7px;border-top:1px dashed rgba(37,160,99,.3)}
.ab-adv-list li.is-group:first-child{margin-top:0;padding-top:0;border-top:0}
/* 01 底部 60% 数据框（英文站 i3Box1 元素） */
.ab-why-callout{margin-top:clamp(12px,1.4vw,18px)}
/* 英文站 i3Box1 同款：深色半透明底 + 主色描边 + 白字（浅绿卡上清晰醒目） */
.ab-why-callout>span.ab-why-big{display:inline-block;font-size:clamp(36px,3.6vw,54px);
  font-weight:900;line-height:1;letter-spacing:-1.5px;white-space:nowrap;color:#fff;
  text-shadow:0 3px 14px rgba(0,0,0,.4);
  animation:abBig 3.2s ease-in-out infinite}

@keyframes abBig{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.ab-why-callout .ab-why-big i{font-style:normal;font-size:.62em}
.ab-why-callout{position:relative;z-index:1;display:flex;align-items:center;gap:clamp(12px,1.5vw,18px);
  background:rgba(31,31,45,.73);
  border:3px solid #25e266;border-radius:clamp(12px,1.4vw,16px);
  box-shadow:0 10px 26px rgba(15,35,25,.22);
  padding:clamp(12px,1.4vw,16px) clamp(40px,4.5vw,68px) clamp(12px,1.4vw,16px) clamp(14px,1.6vw,20px);
  margin-top:auto;padding-top:clamp(12px,1.4vw,16px)}
.ab-why-callout p{font-size:clamp(11.5px,.92vw,13.5px);line-height:1.65;
  color:rgba(255,255,255,.94);max-width:34em}

@keyframes abCur{0%,100%{transform:translate(0,0)}50%{transform:translate(5px,-5px)}}
/* 04 机构合作（英文站 i3Box 同款米白块 #f8faf0） */
.ab-why-partner{background:linear-gradient(180deg,#fbfef5 0%,#eff7e6 100%);
  border-color:#d7e8c6}
.ab-why-ptx{position:relative;z-index:1;max-width:none}
.ab-why-ptx p{font-size:clamp(12px,.98vw,14px);line-height:1.8;color:#4d6b58}
@media @media(min-width:993px){
.ab-why-ptx p{white-space:nowrap}
}
/* logo 跑马灯（英文站 i3Slide 元素的 CSS 实现） */
.ab-marquee{margin-top:clamp(14px,1.6vw,20px);overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.ab-marquee-track{display:flex;width:max-content;
  animation:abSlide 90s linear infinite}
.ab-marquee:hover .ab-marquee-track{animation-play-state:paused}

@keyframes abSlide{to{transform:translateX(-50%)}}
.ab-plogos{display:flex;align-items:center;gap:clamp(34px,4vw,58px);
  padding-right:clamp(34px,4vw,58px);flex:none}
.ab-plogos li{flex:none;display:flex;align-items:center}
.ab-plogos img{height:clamp(26px,2.6vw,36px);width:auto;max-width:200px;object-fit:contain;
  opacity:.86;
  transition:opacity .3s,transform .3s}
.ab-plogos li:hover img{opacity:1;transform:translateY(-3px) scale(1.05)}
/* 鼠标跟随高光（沿用优势卡，浅色版） */
.ab-adv-glare{position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  z-index:0;transition:opacity .35s;
  background:radial-gradient(420px circle at var(--gx,50%) var(--gy,50%),
    rgba(255,255,255,.65),transparent 48%)}
.ab-why-feat:hover .ab-adv-glare,.ab-why-card:hover .ab-adv-glare,
.ab-why-partner:hover .ab-adv-glare{opacity:1}

@keyframes abPop{from{opacity:0;transform:translateY(18px) scale(.96)}}
/* 时间线区副标题：块级居中，两侧渐隐装饰线 */
#abHistory .ab-sh p{display:flex;align-items:center;justify-content:center;gap:10px;
  margin-top:12px}
#abHistory .ab-sh p::before,#abHistory .ab-sh p::after{content:"";width:34px;height:1px;
  background:linear-gradient(90deg,transparent,#8fd7b2);flex:none}
#abHistory .ab-sh p::after{background:linear-gradient(90deg,#8fd7b2,transparent)}

@keyframes abGrow{to{transform:scaleY(1)}}

@keyframes abFlow{0%{background-position:0 -120px}100%{background-position:0 calc(100% + 120px)}}

@keyframes abNode{
  0%{transform:translateX(-50%) rotate(45deg) scale(.6);opacity:.9}
  70%,100%{transform:translateX(-50%) rotate(45deg) scale(1.6);opacity:0}
}

@keyframes abTlL{from{opacity:0;transform:translateX(-30px)}}
/* ============================================================
   8. 联系我们（上：信息卡 + 表单；下：整行大地图）—— 一屏原则压缩
   ============================================================ */
#abContact{padding:clamp(34px,3.6vw,46px) 0}
#abContact .ab-sh{margin-bottom:clamp(16px,2vw,26px)}
#abContact .ab-sh p{margin-top:8px}
/* ============================================================
   9. 响应式
   ============================================================ */
@media (max-width:1200px){
  .ab-intro{grid-template-columns:1fr 1.15fr}
  .ab-honor{grid-template-columns:repeat(3,1fr)}
  .ab-why{gap:14px}
  .ab-why-card::after,.ab-why-partner::after{width:48px;height:48px}
}
@media @media (max-width:992px){
/* 优势：单列自然排列 */
  .ab-why{grid-template-columns:1fr}
.ab-why-feat{grid-column:auto;display:flex;flex-direction:column}
.ab-why-card{grid-column:auto}
.ab-why-partner{grid-column:auto}
/* 单列后左列不再与右列等高，配图容器会塌成 0 高（只剩 5px 描边）→ 用比例撑开 */
  .ab-why-fimg{margin-top:16px;width:100%;align-self:auto;aspect-ratio:16/10}
.ab-adv-list{grid-template-columns:1fr;gap:6px}
.ab-why-card--1 .ab-adv-list,.ab-why-card--2 .ab-adv-list{grid-template-columns:1fr}
.ab-why-card--1 .ab-why-cimg img{object-fit:contain;object-position:center bottom}
.ab-why-card--2 .ab-why-cimg img{object-fit:cover;object-position:center top}
.ab-why-card::after,.ab-why-partner::after{opacity:.32}
}
@media @media (max-width:768px){
.ab-wrap{width:calc(100% - 32px)}
.ab-sh h2{font-size:clamp(21px,5.4vw,28px)}
.ab-plogos img{height:24px}
}
@media @media (max-width:560px){
.ab-why-callout{flex-direction:column;align-items:flex-start}
.ab-why-head{flex-wrap:wrap}
}
@media @media (prefers-reduced-motion:reduce){
.ab-motion .ab-anim,.ab-motion .ab-honor:not(.is-in) .ab-honor-item,
  .ab-motion .ab-stats:not(.is-in) li,.ab-motion .ab-tl:not(.is-in) .ab-tl-item{opacity:1}
}