/* 项目工作：轻量横向项目索引 */
.about-projects { position: relative; margin-top: 34px; padding: 16px 16px 20px; border: 1px solid rgba(190,207,232,.72); border-radius: 24px; background: linear-gradient(120deg, rgba(255,255,255,.88), rgba(242,247,255,.72)); box-shadow: 0 18px 46px rgba(42,66,108,.07); overflow: hidden; }
.about-projects::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(31,94,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(31,94,255,.035) 1px, transparent 1px); background-size: 34px 34px; mask-image: linear-gradient(90deg, #000, transparent 86%); pointer-events: none; }
/* 项目清单：纵向可滚动区域（项目增多后在框内滚动，不撑高页面） */
.about-projects-track { position: relative; display: grid; gap: 12px; max-height: 336px; padding: 4px; overflow-y: auto; overscroll-behavior: contain; scroll-snap-type: y proximity; scrollbar-width: thin; scrollbar-color: rgba(94,133,196,.45) transparent; }
.about-projects-track::-webkit-scrollbar { width: 8px; }
.about-projects-track::-webkit-scrollbar-track { background: transparent; }
.about-projects-track::-webkit-scrollbar-thumb { border: 2px solid transparent; border-radius: 99px; background: rgba(94,133,196,.42); background-clip: content-box; }
.about-projects-track::-webkit-scrollbar-thumb:hover { background: rgba(64,108,178,.6); background-clip: content-box; }
.about-project-item { position: relative; min-height: 118px; display: grid; align-content: space-between; gap: 20px; padding: 20px 22px; border: 1px solid rgba(196,211,233,.8); border-radius: 17px; background: rgba(255,255,255,.9); scroll-snap-align: start; box-shadow: 0 10px 26px rgba(38,61,101,.055); }
.about-project-meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--blue); font-size: 10px; font-weight: 850; letter-spacing: .13em; }
.about-project-status { color: #8393aa; font-size: 9px; letter-spacing: .1em; }
.about-project-item h3 { max-width: 100%; margin: 0; color: var(--text); font-size: clamp(16px, 1.35vw, 19px); font-weight: 650; line-height: 1.4; letter-spacing: -.012em; overflow-wrap: anywhere; }
/* 持续更新：清单末尾的虚线占位框 */
.about-project-more { display: grid; place-content: center; gap: 7px; min-height: 96px; padding: 18px; border: 1.5px dashed rgba(122,155,201,.6); border-radius: 17px; background: rgba(246,250,255,.55); color: #8395ad; text-align: center; }
.about-project-more strong { color: #55779f; font-size: 14px; font-weight: 760; letter-spacing: .01em; }
.about-project-more small { font-size: 11.5px; letter-spacing: .04em; }

/* 团队成员：编辑式分组 + 人物优先的信息卡 */
.about-page #team { position: relative; overflow: hidden; }
.about-page #team::before { content: ""; position: absolute; top: 110px; right: -130px; width: 430px; height: 430px; border: 1px solid rgba(31,94,255,.10); border-radius: 50%; box-shadow: 0 0 0 64px rgba(31,94,255,.025), 0 0 0 128px rgba(20,184,212,.018); pointer-events: none; }
.team-overview { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(40px, 7vw, 104px); align-items: center; padding: 4px 0 clamp(28px, 4vw, 46px); }
.team-intro { max-width: 790px; }
.team-intro-lead { margin: 0; color: var(--ink); font-size: 17px; font-weight: 500; line-height: 1.85; }
.team-intro-note { max-width: 720px; margin: 14px 0 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.team-stats { margin: 0; justify-self: end; }
.team-stats div { position: relative; min-width: 148px; padding: 8px 0 8px 24px; border-left: 2px solid rgba(31,94,255,.42); }
.team-stats dt { color: var(--ink); font-size: clamp(28px, 3vw, 42px); font-weight: 850; letter-spacing: -.06em; line-height: 1; }
.team-stats dd { margin: 9px 0 0; color: #7d8da6; font-size: 11px; font-weight: 760; letter-spacing: .08em; white-space: nowrap; }

.team-groups { position: relative; display: grid; gap: clamp(54px, 6vw, 82px); padding-top: clamp(28px, 4vw, 48px); }
.team-group { min-width: 0; }
.team-group-head { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 14px; margin-bottom: 30px; border-bottom: 1px solid rgba(187,203,226,.82); }
.team-group-head > div { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.team-group-head h3 { margin: 0; font-size: clamp(25px, 2.4vw, 34px); letter-spacing: -.03em; }
.team-group-index { color: #a8b7cb; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.team-group-en, .team-group-count { color: var(--blue); font-size: 10px; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.team-group-count { color: #8b9ab0; white-space: nowrap; }

.team-carousel { position: relative; }
.team-grid { display: flex; gap: 20px; padding: 4px 2px 10px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: none; -ms-overflow-style: none; }
.team-grid::-webkit-scrollbar { display: none; }
.team-nav { position: absolute; top: 44%; z-index: 3; width: 44px; height: 44px; display: grid; place-items: center; padding: 0; border: 1px solid rgba(206,218,235,.92); border-radius: 50%; color: var(--blue-deep); background: rgba(255,255,255,.94); box-shadow: 0 10px 26px rgba(31,49,82,.13); cursor: pointer; transform: translateY(-50%); transition: color .26s ease, background .26s ease, border-color .26s ease, opacity .3s ease; }
.team-nav svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.team-nav--prev { left: -20px; }
.team-nav--next { right: -20px; }
.team-nav:hover:not([disabled]) { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--blue), var(--cyan)); }
.team-nav[disabled] { opacity: 0; pointer-events: none; }
.team-dots { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }
.team-dots button { width: 7px; height: 7px; padding: 0; border: 0; border-radius: 999px; background: rgba(31,94,255,.2); cursor: pointer; transition: width .28s ease, background .28s ease; }
.team-dots button.is-active { width: 24px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.team-card {
  position: relative;
  flex: 0 0 calc((100% - 80px) / 5);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 26px 18px 28px;
  border: 1px solid transparent;
  border-radius: 20px;
  text-align: center;
  transition: transform .34s cubic-bezier(.22,.68,.34,1), box-shadow .34s ease, border-color .34s ease, background .34s ease;
}
.team-card:hover { z-index: 1; transform: translateY(-5px); border-color: rgba(31,94,255,.24); background: rgba(255,255,255,.92); box-shadow: 0 22px 50px rgba(31,49,82,.11); }
.team-avatar { position: relative; width: 112px; height: 112px; margin-bottom: 17px; display: grid; place-items: center; overflow: hidden; border-radius: 50%; background: linear-gradient(145deg, #dae6f8, #f3f7fd); transition: box-shadow .34s ease; }
.team-avatar::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; }
.team-avatar span { color: #47658f; font-size: 26px; font-weight: 850; }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .5s cubic-bezier(.22,.68,.34,1); }
.team-avatar--sun-shenjian { background: #10abfe; }
.team-avatar--sun-huan { background: #4591dd; }
.team-avatar--sun-shenjian img, .team-avatar--sun-huan img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: center bottom; }
.team-card:hover .team-avatar { box-shadow: 0 0 0 4px rgba(31,94,255,.15); }
.team-card:hover .team-avatar img { transform: scale(1.04); }
.team-name { color: var(--ink); font-size: 16px; font-weight: 820; line-height: 1.3; }
.team-role { display: inline-flex; margin-top: 7px; color: var(--blue-deep); font-size: 11px; font-weight: 760; }
.team-org { display: inline-flex; margin-top: 4px; color: #93a3ba; font-size: 10.5px; font-weight: 650; }
.team-focus { margin: 13px 0 0; color: var(--muted); font-size: 11.5px; line-height: 1.7; }

.team-card.is-open .team-open-plus { width: 112px; height: 112px; margin-bottom: 17px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(145deg, #14c489, #0f9f6e); font-size: 42px; font-weight: 300; line-height: 1; box-shadow: 0 12px 28px rgba(15,159,110,.28); transition: transform .34s cubic-bezier(.22,.68,.34,1), box-shadow .34s ease; }
.team-card.is-open:hover .team-open-plus { transform: scale(1.05); box-shadow: 0 16px 34px rgba(15,159,110,.36); }
.team-card.is-open .team-name { color: #0f7a58; }


.team-grid.in .team-card { animation: teamCardIn .62s cubic-bezier(.22,.68,.34,1) backwards; }
.team-grid.in .team-card:nth-child(2) { animation-delay: .07s; }
.team-grid.in .team-card:nth-child(3) { animation-delay: .14s; }
.team-grid.in .team-card:nth-child(4) { animation-delay: .21s; }
.team-grid.in .team-card:nth-child(5) { animation-delay: .28s; }
@keyframes teamCardIn {
  from { opacity: 0; transform: translateY(16px); }
}
@media (prefers-reduced-motion: reduce) {
  .team-grid.in .team-card { animation: none; }
  .team-card, .team-avatar { transition: none; }
}
@media (max-width: 1080px) {
  .team-overview { grid-template-columns: 1fr; align-items: start; gap: 30px; }
  .team-stats { justify-self: start; }
  .team-grid { gap: 16px; }
  .team-card { flex-basis: calc((100% - 32px) / 3); padding: 22px 14px 24px; }
  .team-avatar, .team-card.is-open .team-open-plus { width: 96px; height: 96px; }
}

@media (max-width: 720px) {
  .about-projects { margin-top: 26px; padding: 12px 12px 16px; border-radius: 19px; }
  .about-projects-track { gap: 11px; max-height: 300px; }
  .about-project-item { min-height: 108px; padding: 18px; }
  .about-page #team::before { display: none; }
  .team-overview { gap: 24px; padding-bottom: 28px; }
  .team-intro-note { font-size: 14px; line-height: 1.75; }
  .team-intro-lead { font-size: 16px; line-height: 1.75; }
  .team-stats { width: auto; justify-self: start; }
  .team-stats div { min-width: 132px; padding-left: 18px; }
  .team-stats dt { font-size: 30px; }
  .team-stats dd { font-size: 10px; }
  .team-groups { gap: 52px; padding-top: 30px; }
  .team-group-head { align-items: flex-end; gap: 14px; }
  .team-group-head > div { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; }
  .team-group-head h3 { font-size: 25px; }
  .team-group-en { grid-column: 2; }
  .team-group-count { padding-bottom: 3px; font-size: 9px; }
  .team-grid { gap: 12px; padding-bottom: 6px; }
  .team-card { flex-basis: calc((100% - 12px) / 2); border-radius: 16px; }
  .team-nav { display: none; }
  .team-avatar { width: 80px; height: 80px; margin-bottom: 13px; }
  .team-card.is-open .team-open-plus { width: 80px; height: 80px; margin-bottom: 13px; font-size: 32px; }
}

/* Keep the opening title aligned with the other About section headings. */
.about-page .about-hero-copy h1 { font-size:clamp(32px,3.6vw,52px); line-height:1.18; letter-spacing:-.025em; }