:root {
  --paper: #f7f1e6;
  --paper-2: #efe5d5;
  --ink: #1e302b;
  --muted: #68736e;
  --green: #2f6f5e;
  --green-dark: #244f44;
  --green-deeper: #183b33;
  --coral: #e66c42;
  --gold: #f2c45f;
  --blue: #5f83a8;
  --white: #fffdf8;
  --line: rgba(30,48,43,.14);
  --shadow: 0 26px 70px rgba(33,50,44,.13);
  --radius: 30px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .24;
  background-image: radial-gradient(rgba(31,48,42,.12) .7px, transparent .7px);
  background-size: 7px 7px;
  z-index: 20;
  mix-blend-mode: multiply;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--white); color: var(--ink); padding: 12px 18px; border-radius: 12px; }
.skip-link:focus { top: 12px; }
.section-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.topbar {
  width: min(1180px, calc(100% - 40px));
  min-height: 74px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 11px; justify-self: start; }
.brand-mark { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: var(--green); color: white; font-size: 18px; font-weight: 900; }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy b { font-size: 14px; }
.brand-copy small { font-size: 8px; letter-spacing: .16em; color: var(--muted); margin-top: 4px; }
.topnav { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 700; color: var(--muted); }
.topnav a:hover, .topnav a:focus-visible { color: var(--green); }
.topbar-cta { justify-self: end; font-size: 13px; font-weight: 800; padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.35); }

.hero { min-height: 730px; display: grid; grid-template-columns: 1.02fr .98fr; gap: 62px; align-items: center; padding: 70px 0 92px; }
.eyebrow { margin: 0; color: var(--coral); font-size: 12px; line-height: 1.5; font-weight: 900; letter-spacing: .16em; }
h1, h2, h3, p { text-wrap: pretty; }
h1 { margin: 18px 0 26px; font-size: clamp(58px, 6.4vw, 94px); line-height: .99; letter-spacing: -.075em; }
h1 span { color: var(--green); }
.hero-lead { max-width: 620px; margin: 0; color: var(--muted); font-size: 19px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 26px; }
.button { min-height: 50px; padding: 0 22px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--green); color: white; box-shadow: 0 13px 30px rgba(47,111,94,.22); }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.4); }
.hero-pills { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 9px; }
.hero-pills li { padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line); font-size: 12px; font-weight: 800; }

.hero-board { min-height: 550px; border-radius: 46px; background: var(--green-dark); position: relative; overflow: hidden; box-shadow: var(--shadow); isolation: isolate; }
.hero-board::before { content: ""; width: 300px; height: 300px; border-radius: 50%; position: absolute; right: -110px; top: -95px; background: var(--gold); z-index: -1; }
.hero-board::after { content: ""; position: absolute; inset: 24px; border: 1px solid rgba(255,255,255,.19); border-radius: 34px; z-index: -1; }
.orbit { position: absolute; left: 50%; top: 48%; transform: translate(-50%,-50%); border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.orbit-one { width: 360px; height: 360px; }
.orbit-two { width: 470px; height: 470px; }
.core-disc { width: 174px; height: 174px; border-radius: 50%; position: absolute; left: 50%; top: 48%; transform: translate(-50%,-50%); background: var(--paper); display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 20px 50px rgba(0,0,0,.25); z-index: 2; }
.core-disc span { font-size: 36px; color: var(--green); font-weight: 900; line-height: 1; }
.core-disc b { font-size: 20px; margin-top: 6px; }
.core-disc small { color: var(--muted); margin-top: 7px; }
.floating-card { position: absolute; min-width: 180px; padding: 17px 18px; background: var(--white); border-radius: 20px; box-shadow: 0 14px 34px rgba(5,24,19,.22); display: grid; gap: 3px; z-index: 3; }
.floating-card small { color: var(--coral); font-weight: 800; font-size: 10px; letter-spacing: .12em; }
.floating-card b { font-size: 19px; }
.floating-card span { color: var(--muted); font-size: 11px; }
.card-film { left: 8%; top: 13%; transform: rotate(-5deg); }
.card-ip { right: 7%; top: 16%; transform: rotate(6deg); }
.card-life { left: 7%; bottom: 15%; transform: rotate(4deg); }
.card-work { right: 6%; bottom: 15%; transform: rotate(-4deg); }
.board-note { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.72); font-size: 11px; letter-spacing: .05em; width: max-content; max-width: 88%; }

.metrics { width: min(1180px, calc(100% - 40px)); margin: -34px auto 0; display: grid; grid-template-columns: repeat(4,1fr); background: var(--white); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 15px 42px rgba(33,50,44,.08); position: relative; z-index: 2; }
.metrics div { padding: 30px 26px; display: flex; gap: 12px; align-items: baseline; justify-content: center; border-right: 1px solid var(--line); }
.metrics div:last-child { border-right: 0; }
.metrics strong { font-size: 34px; color: var(--green); }
.metrics span { color: var(--muted); font-size: 13px; }

.belief { padding: 140px 0 120px; }
.section-heading { margin-bottom: 55px; }
.section-heading h2 { margin: 14px 0 0; font-size: clamp(42px,5.4vw,70px); line-height: 1.08; letter-spacing: -.055em; }
.split-heading { display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: end; }
.split-heading > p { margin: 0 0 7px; color: var(--muted); font-size: 17px; line-height: 1.9; max-width: 540px; }
.stage-flow { display: grid; grid-template-columns: repeat(5,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 56px; }
.stage-flow div { min-height: 155px; padding: 24px 20px; display: grid; align-content: center; gap: 7px; border-right: 1px solid var(--line); }
.stage-flow div:last-child { border-right: 0; }
.stage-flow i { font-style: normal; color: var(--coral); font-size: 11px; font-weight: 900; }
.stage-flow b { font-size: 19px; }
.stage-flow span { color: var(--muted); font-size: 12px; }
.capability-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.capability-grid article { min-height: 190px; padding: 26px; border-radius: 24px; background: rgba(255,253,248,.7); border: 1px solid var(--line); }
.capability-grid article span { color: var(--coral); font-size: 11px; font-weight: 900; }
.capability-grid article h3 { margin: 32px 0 10px; font-size: 20px; }
.capability-grid article p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.capability-grid .capability-wide { grid-column: span 3; min-height: 150px; display: grid; grid-template-columns: auto 1fr 1.3fr; align-items: center; gap: 30px; background: var(--green); color: white; }
.capability-wide h3 { margin: 0 !important; }
.capability-wide p { color: rgba(255,255,255,.72) !important; }

.dark-section { background: var(--green-deeper); color: white; }
.architecture { padding: 120px 0; }
.light-heading > p { color: rgba(255,255,255,.64); }
.architecture-stack { display: grid; gap: 12px; }
.tier { border: 1px solid rgba(255,255,255,.14); border-radius: 20px; padding: 21px 24px; display: grid; grid-template-columns: 180px repeat(4,1fr); gap: 14px; align-items: center; background: rgba(255,255,255,.045); }
.tier span { color: var(--gold); font-size: 11px; letter-spacing: .12em; font-weight: 800; }
.tier b { padding: 12px 14px; border-radius: 13px; background: rgba(255,255,255,.08); font-size: 13px; font-weight: 700; }
.tier-one { width: 54%; }
.tier-two { width: 66%; }
.tier-three { width: 82%; }
.tier-four { width: 100%; }

.products { padding: 135px 0 125px; }
.products-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; }
.products-heading h2 { margin-bottom: 0; }
.products-heading > p { max-width: 420px; margin: 0 0 7px; color: var(--muted); line-height: 1.8; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 28px; }
.filter-button { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,.3); border-radius: 999px; padding: 10px 16px; cursor: pointer; font-size: 13px; font-weight: 800; }
.filter-button.is-active { background: var(--green); border-color: var(--green); color: white; }
.course-list { display: grid; gap: 15px; }
.course-shell[hidden] { display: none; }
.course-details { border-radius: 26px; background: var(--white); border: 1px solid var(--line); overflow: clip; box-shadow: 0 10px 28px rgba(33,50,44,.05); }
.course-details summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 90px 1fr auto; align-items: center; gap: 20px; padding: 25px 28px; }
.course-details summary::-webkit-details-marker { display: none; }
.course-code { width: 62px; height: 62px; border-radius: 19px; display: grid; place-items: center; background: var(--course-color, var(--green)); color: white; font-size: 15px; font-weight: 900; letter-spacing: .04em; }
.course-summary-copy small { color: var(--course-color, var(--green)); font-size: 10px; font-weight: 900; letter-spacing: .12em; }
.course-summary-copy h3 { margin: 6px 0; font-size: clamp(21px,3vw,30px); letter-spacing: -.025em; }
.course-summary-copy p { margin: 0; color: var(--muted); font-size: 13px; }
.course-meta { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.course-meta span { padding: 7px 10px; border-radius: 999px; background: var(--paper); font-size: 11px; font-weight: 700; }
.course-arrow { display: none; }
.course-details[open] summary { border-bottom: 1px solid var(--line); }
.course-details[open] .course-code { transform: rotate(-5deg); }
.course-content { padding: 30px 28px 34px; }
.course-outcome { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 28px; }
.outcome-box { border-radius: 18px; padding: 18px 20px; background: var(--paper); }
.outcome-box span { display: block; color: var(--muted); font-size: 10px; font-weight: 900; letter-spacing: .12em; margin-bottom: 8px; }
.outcome-box b { font-size: 14px; line-height: 1.65; }
.day-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.day-card { border-radius: 19px; border: 1px solid var(--line); padding: 19px 20px; background: rgba(255,255,255,.6); }
.day-card h4 { margin: 0 0 14px; font-size: 15px; color: var(--course-color, var(--green)); }
.day-card ol { margin: 0; padding-left: 20px; color: var(--ink); }
.day-card li { padding: 6px 0; font-size: 13px; line-height: 1.55; }

.method { padding: 120px 0; }
.method-track { list-style: none; margin: 0 0 56px; padding: 0; display: grid; grid-template-columns: repeat(7,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.method-track li { min-height: 128px; padding: 22px 14px; display: grid; align-content: center; gap: 11px; border-right: 1px solid var(--line); }
.method-track li:last-child { border-right: 0; }
.method-track span { color: var(--coral); font-size: 10px; font-weight: 900; }
.method-track b { font-size: 14px; }
.evaluation-panel { border-radius: 30px; padding: 38px; background: var(--green); color: white; display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: center; }
.evaluation-copy h3 { font-size: 30px; margin: 11px 0 8px; }
.evaluation-copy > p:last-child { margin: 0; color: rgba(255,255,255,.66); }
.evaluation-tags { display: flex; flex-wrap: wrap; gap: 9px; }
.evaluation-tags span { padding: 11px 15px; background: rgba(255,255,255,.11); border: 1px solid rgba(255,255,255,.15); border-radius: 999px; font-size: 12px; font-weight: 700; }

.delivery { padding: 125px 0; }
.delivery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.delivery-grid article { border: 1px solid rgba(255,255,255,.13); border-radius: 24px; padding: 28px; background: rgba(255,255,255,.045); }
.delivery-grid article > span { color: var(--gold); font-size: 10px; letter-spacing: .14em; font-weight: 900; }
.delivery-grid h3 { margin: 26px 0 17px; font-size: 24px; }
.delivery-grid ul { margin: 0; padding-left: 20px; color: rgba(255,255,255,.67); font-size: 13px; line-height: 2; }
.custom-band { margin-top: 16px; padding: 28px; border-radius: 24px; background: var(--gold); color: var(--ink); display: grid; grid-template-columns: auto auto auto 1fr; align-items: center; gap: 20px; }
.custom-band > div { display: grid; }
.custom-band strong { font-size: 34px; color: var(--green-dark); }
.custom-band span { font-size: 11px; font-weight: 800; }
.custom-band i { font-size: 25px; font-style: normal; color: var(--coral); }
.custom-band p { margin: 0 0 0 20px; font-size: 13px; line-height: 1.8; }

.closing { padding: 140px 0; text-align: center; }
.closing h2 { margin: 18px auto 24px; max-width: 1000px; font-size: clamp(42px,5vw,70px); line-height: 1.15; letter-spacing: -.055em; }
.closing h2 span { color: var(--green); }
.closing > p:not(.eyebrow) { max-width: 720px; margin: 0 auto 32px; color: var(--muted); font-size: 17px; line-height: 1.85; }
footer { min-height: 100px; width: min(1180px,calc(100% - 40px)); margin: 0 auto; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
footer div { display: grid; gap: 5px; }
footer span { color: var(--muted); font-size: 9px; letter-spacing: .12em; }
footer a { font-size: 12px; font-weight: 800; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 58px; }
  .hero-copy { max-width: 760px; }
  .hero-board { width: min(620px,100%); justify-self: center; }
  .split-heading { grid-template-columns: 1fr; gap: 22px; }
  .stage-flow { grid-template-columns: repeat(5, minmax(150px,1fr)); overflow-x: auto; }
  .capability-grid { grid-template-columns: repeat(2,1fr); }
  .capability-grid .capability-wide { grid-column: span 2; }
  .tier { grid-template-columns: 150px repeat(2,1fr); }
  .tier-one { width: 64%; }
  .tier-two { width: 76%; }
  .tier-three { width: 90%; }
  .products-heading { align-items: start; flex-direction: column; }
  .method-track { grid-template-columns: repeat(7,minmax(105px,1fr)); overflow-x: auto; }
}

@media (max-width: 720px) {
  .section-shell, .topbar, .metrics, footer { width: min(100% - 28px,1180px); }
  .topbar { min-height: 66px; grid-template-columns: 1fr auto; }
  .topnav { display: none; }
  .hero { min-height: 0; gap: 38px; padding: 50px 0 72px; }
  h1 { font-size: clamp(50px,14vw,72px); }
  .hero-lead { font-size: 17px; }
  .hero-board { min-height: 450px; border-radius: 32px; }
  .orbit-one { width: 290px; height: 290px; }
  .orbit-two { width: 390px; height: 390px; }
  .core-disc { width: 140px; height: 140px; }
  .core-disc span { font-size: 30px; }
  .floating-card { min-width: 145px; padding: 13px; }
  .floating-card b { font-size: 15px; }
  .card-film { left: 5%; top: 10%; }
  .card-ip { right: 4%; top: 13%; }
  .card-life { left: 4%; bottom: 17%; }
  .card-work { right: 3%; bottom: 18%; }
  .board-note { bottom: 23px; font-size: 9px; }
  .metrics { grid-template-columns: repeat(2,1fr); margin-top: 0; }
  .metrics div { padding: 22px 15px; border-bottom: 1px solid var(--line); }
  .metrics div:nth-child(2) { border-right: 0; }
  .metrics div:nth-child(3), .metrics div:nth-child(4) { border-bottom: 0; }
  .belief, .products, .method { padding: 95px 0; }
  .architecture, .delivery { padding: 95px 0; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2 { font-size: 44px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid .capability-wide { grid-column: auto; display: block; }
  .capability-wide h3 { margin: 30px 0 10px !important; }
  .tier, .tier-one, .tier-two, .tier-three, .tier-four { width: 100%; grid-template-columns: 1fr; gap: 8px; }
  .tier span { margin-bottom: 6px; }
  .filter-bar { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; }
  .filter-button { flex: 0 0 auto; }
  .course-details summary { grid-template-columns: 62px 1fr; gap: 14px; padding: 20px 17px; }
  .course-code { width: 54px; height: 54px; border-radius: 16px; }
  .course-meta { grid-column: 2; justify-content: flex-start; }
  .course-content { padding: 22px 17px 26px; }
  .course-outcome, .day-grid { grid-template-columns: 1fr; }
  .evaluation-panel, .delivery-grid { grid-template-columns: 1fr; }
  .evaluation-panel { padding: 28px 22px; }
  .custom-band { grid-template-columns: 1fr auto 1fr; gap: 12px; text-align: center; }
  .custom-band p { grid-column: 1 / -1; margin: 8px 0 0; text-align: left; }
  .closing { padding: 100px 0; }
  footer { padding: 30px 0; align-items: flex-start; }
}

@media (max-width: 430px) {
  .brand-copy small { display: none; }
  .topbar-cta { padding: 8px 12px; }
  .hero-actions .button { width: 100%; }
  .hero-board { min-height: 400px; }
  .floating-card { min-width: 128px; max-width: 142px; }
  .floating-card span { display: none; }
  .core-disc { width: 126px; height: 126px; }
  .core-disc span { font-size: 27px; }
  .core-disc b { font-size: 16px; }
  .metrics div { justify-content: flex-start; }
  .metrics strong { font-size: 29px; }
  .metrics span { font-size: 11px; }
  .section-heading h2 { font-size: 38px; }
  .course-summary-copy h3 { font-size: 20px; }
  .course-summary-copy p { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

@media print {
  body::before, .topnav, .topbar-cta, .hero-actions, .filter-bar { display: none !important; }
  body { background: white; }
  .dark-section { background: white; color: var(--ink); }
  .light-heading > p, .delivery-grid ul { color: var(--muted); }
  .course-shell { display: block !important; }
  .course-details > * { display: block; }
  .course-details { break-inside: avoid; }
}