:root {
  --ink: #101828;
  --muted: #667085;
  --line: #e5e7eb;
  --paper: #f6f8fb;
  --panel: #ffffff;
  --blue: #1664ff;
  --blue-dark: #0b3b8c;
  --sky: #eaf1ff;
  --teal: #0f766e;
  --orange: #d97706;
  --gold: #d99a24;
  --shadow: 0 16px 42px rgba(17, 24, 39, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.62;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, span, strong, li { overflow-wrap: anywhere; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.brand-badge { color: var(--blue); font-size: 22px; font-weight: 900; letter-spacing: 0; }
.brand strong, .brand small { display: block; }
.brand small { color: var(--muted); font-size: 12px; }
.top-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.top-actions a {
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #344054;
  font-size: 14px;
  font-weight: 800;
}
.top-actions a:hover { border-color: var(--line); background: #fff; }
/* 跨站跳转：分隔符 + pill 按钮，区别于页内锚点 */
.top-actions .nav-divider { align-self: center; width: 1px; height: 18px; margin: 0 4px; background: var(--line); }
.top-actions a.nav-cross {
  color: var(--blue);
  background: #fff;
  border-color: #bcd0ff;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.top-actions a.nav-cross:hover, .top-actions a.nav-cross:focus-visible { color: #fff; background: var(--blue); border-color: var(--blue); }

main { overflow: hidden; }
.hero-lab {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  justify-items: center;
  min-height: calc(100vh - 71px);
  padding: clamp(62px, 8vw, 110px) clamp(18px, 5vw, 72px);
  background:
    radial-gradient(circle at 82% 18%, rgba(22, 100, 255, 0.22), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #f6f8fb 52%, #eaf1ff 100%);
}
.hero-copy { text-align: center; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1 {
  max-width: 1120px;
  margin: 0;
  font-size: clamp(48px, 8.6vw, 128px);
  line-height: .98;
  letter-spacing: 0;
}
.hero-slogan {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
  width: min(1120px, 100%);
}
.slogan-row {
  display: grid;
  grid-template-columns: clamp(72px, 11vw, 142px) minmax(0, 1fr);
  gap: clamp(12px, 2vw, 24px);
  align-items: center;
}
.slogan-label {
  display: inline-grid;
  min-height: clamp(48px, 7vw, 78px);
  place-items: center;
  border: 2px solid #bcd0ff;
  border-radius: 999px;
  color: var(--blue);
  background: rgba(255,255,255,.78);
  font-size: clamp(22px, 3.2vw, 42px);
  font-weight: 900;
}
.slogan-row strong {
  display: block;
  color: var(--ink);
  font-size: clamp(48px, 9vw, 132px);
  font-weight: 950;
  line-height: .92;
  letter-spacing: 0;
}
.slogan-row.primary strong {
  color: var(--blue);
  text-shadow: 0 16px 34px rgba(22, 100, 255, .18);
}
.slogan-row.primary .slogan-label {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 12px 30px rgba(22, 100, 255, .22);
}
.lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: #3d4858;
  font-size: clamp(17px, 1.7vw, 21px);
}
.hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 900;
}
.button.primary { color: #fff; background: var(--ink); }
.button.secondary { border: 1px solid #bcd0ff; color: var(--blue); background: #fff; }

.pledge-board {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow);
}
.pledge-tab {
  width: calc(50% - 5px);
  min-height: 44px;
  border: 0;
  border-radius: 18px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}
.pledge-tab.active { color: #fff; background: var(--blue); }
.pledge-screen {
  margin-top: 14px;
  padding: clamp(24px, 4vw, 38px);
  border-radius: 22px;
  color: #fff;
  background:
    linear-gradient(135deg, var(--blue-dark), var(--blue)),
    radial-gradient(circle at 80% 10%, rgba(255,255,255,.24), transparent 35%);
}
.status-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #7dd3fc;
  box-shadow: 0 0 0 8px rgba(125,211,252,.18);
}
.pledge-label { margin: 22px 0 0; color: rgba(255,255,255,.72); font-weight: 800; }
.pledge-screen h2 { margin: 6px 0 12px; font-size: clamp(30px, 4vw, 50px); line-height: 1.08; }
.pledge-screen p { color: rgba(255,255,255,.82); }
.meter { height: 12px; margin-top: 28px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.18); }
.meter i { display: block; width: 100%; height: 100%; background: linear-gradient(90deg, #7dd3fc, #ffffff); }

.pledge-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0 clamp(18px, 5vw, 72px) clamp(62px, 7vw, 96px);
}
.pledge-strip article, .track-workspace, .process-overview article, .meeting-card, .profile-card, .case-diagnosis, .student-timeline article, .star-card, .method-panel, .qa-grid article, .placement-stats div, .placement-card, .case-stage, .deliverable, .shot, .contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.96);
  box-shadow: var(--shadow);
}
.pledge-strip article { padding: 24px; }
.pledge-strip span { color: var(--blue); font-weight: 900; }
.pledge-strip h2 { margin: 6px 0 8px; font-size: clamp(25px, 3vw, 38px); }
.pledge-strip p { margin: 0; color: var(--muted); }

.section { padding: clamp(68px, 8vw, 110px) clamp(18px, 5vw, 72px); }
.section-head { max-width: 920px; margin-bottom: 28px; }
.section-head.with-tool {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}
.section-head h2, .contact-copy h2 { margin: 0; font-size: clamp(32px, 4.7vw, 58px); line-height: 1.08; }
.section-head p:not(.eyebrow), .contact-copy p { color: var(--muted); font-size: 17px; }
.live-update {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-top: 8px;
  padding: 6px 12px;
  border: 1px solid #c9d8ff;
  border-radius: 999px;
  color: var(--blue-dark) !important;
  background: #eef5ff;
  font-size: 14px !important;
  font-weight: 900;
}

.track-switch, .case-tabs, .filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.track-btn, .case-tab, .filter-chip {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}
.track-btn.active, .case-tab.active, .filter-chip.active { color: #fff; background: var(--blue); border-color: var(--blue); }
.track-workspace { padding: clamp(20px, 3vw, 32px); }
.track-panel { display: none; }
.track-panel.active { display: block; }
.track-summary { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 18px; }
.track-summary h3 { margin: 0; font-size: 30px; }
.track-summary p { max-width: 620px; color: var(--muted); }
.task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.task-grid article {
  min-height: 210px;
  padding: 20px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}
.task-grid b { color: var(--blue); }
.task-grid h4 { margin: 12px 0 8px; font-size: 21px; }
.task-grid p { margin: 0; color: var(--muted); }

.process-section {
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
}
.process-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.process-overview article {
  padding: 18px;
  box-shadow: none;
}
.process-overview strong {
  display: block;
  color: var(--blue);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
}
.process-overview span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}
.meeting-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.meeting-card {
  overflow: hidden;
  box-shadow: none;
}
.meeting-card summary {
  position: relative;
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 74px;
  padding: 18px 56px 18px 18px;
  cursor: pointer;
  list-style: none;
}
.meeting-card summary::-webkit-details-marker { display: none; }
.meeting-card summary::after {
  content: "+";
  position: absolute;
  top: 22px;
  right: 18px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  text-align: center;
  font-weight: 900;
  line-height: 28px;
}
.meeting-card[open] summary::after { content: "-"; }
.meeting-card summary span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}
.meeting-card summary strong {
  font-size: 18px;
  line-height: 1.28;
}
.meeting-body {
  padding: 0 18px 20px;
  border-top: 1px solid #eef2f7;
}
.meeting-body p {
  margin: 14px 0 10px;
  color: var(--ink);
  font-weight: 800;
}
.meeting-body ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.meeting-body li::marker { color: var(--blue); }

.student-case-section {
  background:
    linear-gradient(180deg, #f6f8fb 0%, #ffffff 56%, #eef5ff 100%);
}
.case-profile {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 14px;
  margin-bottom: 14px;
}
.profile-card {
  padding: clamp(20px, 3vw, 30px);
  box-shadow: none;
}
.profile-card.warning {
  background: #f8fbff;
}
.profile-card > span,
.star-head span,
.timeline-content span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.profile-card h3,
.case-diagnosis h3,
.method-panel h3 {
  margin: 8px 0 10px;
  font-size: clamp(24px, 2.7vw, 36px);
  line-height: 1.14;
}
.profile-card p,
.method-panel p {
  margin: 0;
  color: var(--muted);
}
.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.profile-tags b {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #eef5ff;
  font-size: 12px;
}
.case-diagnosis {
  display: grid;
  grid-template-columns: .58fr 1fr;
  gap: 24px;
  margin-bottom: 18px;
  padding: 24px;
  box-shadow: none;
}
.case-diagnosis ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.case-diagnosis strong { color: var(--ink); }
.case-diagnosis li::marker { color: var(--blue); }
.student-timeline {
  position: relative;
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}
.student-timeline::before {
  content: "";
  position: absolute;
  top: 22px;
  bottom: 22px;
  left: 34px;
  width: 2px;
  background: #c9d8ff;
}
.student-timeline article {
  position: relative;
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 18px;
  box-shadow: none;
}
.timeline-index {
  position: relative;
  z-index: 1;
  display: grid;
  width: 34px;
  min-height: 34px;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  font-size: 11px;
  font-weight: 900;
}
.timeline-content h3 {
  margin: 8px 0;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.25;
}
.timeline-content p {
  margin: 0;
  color: var(--muted);
}
.star-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.star-card {
  overflow: hidden;
  box-shadow: none;
}
.star-head {
  padding: 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
}
.star-head span { color: rgba(255,255,255,.78); }
.star-head h3 {
  margin: 8px 0 0;
  font-size: 24px;
  line-height: 1.16;
}
.star-card dl {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0 20px 20px;
}
.star-card dt {
  margin-top: 16px;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 900;
}
.star-card dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}
.method-panel {
  display: grid;
  grid-template-columns: .64fr 1fr;
  gap: 22px;
  padding: 24px;
  box-shadow: none;
}
.qa-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.qa-grid article {
  padding: 14px;
  box-shadow: none;
}
.qa-grid b {
  display: block;
  margin-bottom: 6px;
  color: var(--blue-dark);
}
.qa-grid span {
  color: var(--muted);
  font-size: 14px;
}

.placements-section { background: rgba(255,255,255,.38); }
.search-box input {
  width: min(380px, 76vw);
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 18px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.placement-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 16px;
  max-width: 320px;
}
.placement-stats div { padding: 18px; }
.placement-stats strong { display: block; font-size: 23px; }
.placement-stats span { color: var(--muted); font-size: 14px; }
.placement-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.placement-card {
  display: grid;
  align-content: start;
  min-height: 300px;
  padding: 18px;
  box-shadow: none;
}
.placement-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.placement-card .sector { color: var(--blue); font-size: 12px; font-weight: 900; }
.placement-card h3 { margin: 8px 0 6px; font-size: 21px; line-height: 1.25; }
.placement-card p { margin: 0; color: var(--muted); font-size: 14px; }
.placement-card .role {
  color: var(--ink);
  font-size: 15px;
  font-weight: 900;
}
.card-index {
  color: #98a2b3;
  font-size: 12px;
  font-weight: 900;
}
.card-fields {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}
.card-fields p {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid #eef2f7;
}
.card-fields b {
  color: var(--blue-dark);
  font-size: 12px;
}
.card-fields span {
  color: var(--muted);
  font-size: 13px;
}
.placement-card .meta { display: flex; flex-wrap: wrap; gap: 6px; align-self: end; margin-top: 16px; }
.placement-card .meta span { padding: 5px 8px; border-radius: 999px; background: #eff6ff; color: var(--blue-dark); font-size: 12px; font-weight: 800; }

.load-more-wrap {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-top: 24px;
}
.load-more-wrap button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  padding: 0 24px;
  color: #fff;
  background: var(--blue);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  box-shadow: 0 12px 26px rgba(22, 100, 255, .18);
}
.load-more-wrap button.secondary {
  color: var(--blue);
  background: #eef5ff;
  box-shadow: none;
}
.load-more-wrap button[hidden] {
  display: none;
}
.load-more-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.full-table-shell {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}
.full-table-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}
.full-table-head h3 { margin: 0; font-size: 24px; }
.full-table-head p { margin: 0; color: var(--muted); }
.table-scroll {
  max-height: 620px;
  overflow: auto;
}
#full-excel-table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
#full-excel-table th,
#full-excel-table td {
  max-width: 320px;
  padding: 10px 12px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}
#full-excel-table th {
  position: sticky;
  top: 0;
  z-index: 2;
  color: #fff;
  background: var(--blue);
  white-space: nowrap;
}
#full-excel-table .row-num {
  color: var(--muted);
  background: #f8fafc;
  font-weight: 800;
}

.full-doc-section { background: #fff; }
.doc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.doc-tab {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}
.doc-tab.active {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
}
.full-text-box {
  max-height: 640px;
  margin: 0;
  overflow: auto;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #1f2937;
  background: #f8fafc;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
}

.case-console { background: var(--blue-dark); color: #fff; }
.case-console .section-head p:not(.eyebrow) { color: rgba(255,255,255,.7); }
.case-console .eyebrow { color: #bfdbfe; }
.case-stage {
  padding: clamp(18px, 3vw, 28px);
  color: var(--ink);
  background: #fff;
}
.case-detail {
  display: none;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .78fr);
  gap: 26px;
  align-items: center;
}
.case-detail.active { display: grid; }
.case-kicker { color: var(--blue); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.case-detail h3 { margin: 0; font-size: clamp(30px, 4vw, 54px); line-height: 1.08; }
.case-detail p { color: var(--muted); }
.mini-flow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.mini-flow span { padding: 8px 11px; border-radius: 999px; color: var(--blue); background: #eff6ff; font-weight: 900; font-size: 13px; }
.case-detail figure { margin: 0; overflow: hidden; border-radius: 18px; border: 1px solid var(--line); background: #f7f4ec; }
.case-detail img { width: 100%; height: 340px; object-fit: contain; }

.visual-section { background: linear-gradient(135deg, #ffffff, #eaf1ff); }
.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.deliverable { padding: 24px; }
.deliverable span { color: var(--blue); font-weight: 900; }
.deliverable h3 { margin: 10px 0 8px; font-size: 27px; }
.deliverable p { color: var(--muted); }
.bar-stack { display: grid; gap: 8px; margin-top: 20px; }
.bar-stack i { display: block; width: var(--w); height: 10px; border-radius: 999px; background: linear-gradient(90deg, var(--blue), #00b8a9); }

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.shot {
  display: grid;
  overflow: hidden;
  padding: 0;
  cursor: zoom-in;
  font: inherit;
  text-align: left;
}
.shot img { width: 100%; height: 180px; object-fit: contain; background: #fff; }
.shot span { padding: 11px 12px; color: var(--muted); font-size: 13px; font-weight: 800; }

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, .72fr);
  gap: 28px;
  align-items: start;
  padding: clamp(68px, 8vw, 110px) clamp(18px, 5vw, 72px);
  background: var(--blue-dark);
  color: #fff;
}
.contact-copy p { color: rgba(255,255,255,.7); }
.contact-form { display: grid; gap: 14px; padding: 24px; color: var(--ink); }
.contact-form label { display: grid; gap: 7px; color: var(--muted); font-size: 14px; font-weight: 900; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 13px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.contact-form button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 28px;
  background: rgba(16, 24, 40, .78);
}
.lightbox.open { display: grid; }
.lightbox figure { max-width: min(1120px, 94vw); max-height: 88vh; margin: 0; overflow: hidden; border-radius: 20px; background: #fff; }
.lightbox img { width: 100%; max-height: 78vh; object-fit: contain; background: #fff; }
.lightbox figcaption { padding: 12px 16px; color: var(--muted); }
.lightbox-close {
  position: fixed;
  top: 16px;
  right: 20px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--blue);
  font-size: 28px;
  cursor: pointer;
}

@media (max-width: 1180px) {
  .placement-grid, .task-grid, .meeting-grid, .star-board { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .evidence-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .topbar, .section-head.with-tool, .track-summary { align-items: flex-start; flex-direction: column; }
  .top-actions { justify-content: flex-start; }
  .hero-lab, .case-detail, .contact-section, .case-profile, .case-diagnosis, .method-panel { grid-template-columns: 1fr; }
  .pledge-strip, .process-overview, .meeting-grid, .star-board, .qa-grid, .placement-stats, .deliverable-grid { grid-template-columns: 1fr; }
  h1 { font-size: clamp(40px, 13vw, 64px); }
}
@media (max-width: 620px) {
  .hero-lab, .section, .contact-section { padding-left: 16px; padding-right: 16px; }
  .placement-grid, .task-grid, .evidence-grid { grid-template-columns: 1fr; }
  .meeting-card summary { grid-template-columns: 1fr; gap: 6px; padding-right: 54px; }
  .student-timeline::before { left: 26px; }
  .student-timeline article { grid-template-columns: 48px minmax(0, 1fr); gap: 12px; padding: 14px; }
  .card-fields p { grid-template-columns: 1fr; }
  .full-table-head { align-items: flex-start; flex-direction: column; }
  .case-detail img, .shot img { height: 220px; }
  .top-actions a { padding: 7px 9px; font-size: 13px; }
}