@charset "UTF-8";

:root {
  --ink: #070b18;
  --ink-soft: #0d1427;
  --panel: #111b32;
  --panel-deep: #0b1122;
  --line: rgba(213, 231, 255, 0.16);
  --paper: #f5f7ff;
  --muted: #aeb8d0;
  --orange: #ff714d;
  --orange-soft: #ffad75;
  --cyan: #5ce1e6;
  --violet: #9d86ff;
  --lime: #d1fb71;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --shell: min(1180px, calc(100% - 48px));
  --display: "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--paper);
  background:
    radial-gradient(circle at 93% 13%, rgba(92, 225, 230, 0.12), transparent 22rem),
    radial-gradient(circle at 8% 26%, rgba(157, 134, 255, 0.12), transparent 28rem),
    var(--ink);
  font-family: var(--body);
  line-height: 1.7;
}

body::before {
  content: "";
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  background-image: linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, black, transparent 83%);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 50%;
  padding: 9px 15px;
  color: var(--ink);
  background: var(--lime);
  border-radius: 999px;
  transform: translate(-50%, -180%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translate(-50%, 0); }

.section-shell { width: var(--shell); margin: 0 auto; }

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 11, 24, 0.86);
  backdrop-filter: blur(18px);
}

.header-shell {
  width: var(--shell);
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0 auto;
}

.brand-lockup {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 8px 20px rgba(255, 113, 77, .26));
}

.brand-word { width: 126px; height: 34px; }

.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.main-nav a {
  padding: 9px 11px;
  color: #cbd3e6;
  font-size: 13px;
  white-space: nowrap;
  border-radius: 8px;
  transition: color .2s ease, background .2s ease;
}

.main-nav a:hover,
.main-nav a.active { color: #fff; background: rgba(255,255,255,.085); }
.main-nav a.active { box-shadow: inset 0 -2px var(--orange); }

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-weight: 750;
  font-size: 14px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.header-cta { color: #12131d; background: var(--lime); white-space: nowrap; }
.header-cta:hover, .button:hover { transform: translateY(-2px); }

.search-wrap {
  width: var(--shell);
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 58px;
  margin: 0 auto;
}

.search-form {
  position: relative;
  display: flex;
  width: min(640px, 100%);
  min-height: 39px;
  border: 1px solid rgba(174, 184, 208, .22);
  border-radius: 7px;
  overflow: hidden;
  background: rgba(255,255,255,.045);
}

.search-icon { padding: 8px 0 8px 13px; color: var(--cyan); font-size: 18px; }
.search-form input { min-width: 0; flex: 1; padding: 0 12px; color: var(--paper); background: transparent; border: 0; outline: 0; }
.search-form input::placeholder { color: #8994af; }
.search-form button { padding: 0 15px; color: #131522; background: var(--orange-soft); border: 0; font-size: 13px; font-weight: 800; }
.search-hint { margin: 0; color: #8994af; font-size: 12px; }

.breadcrumbs {
  width: var(--shell);
  display: flex;
  gap: 9px;
  align-items: center;
  min-height: 48px;
  margin: 0 auto;
  color: #9ba7bf;
  font-size: 13px;
}
.breadcrumbs a { color: var(--cyan); }
.breadcrumbs span { color: #65708a; }

.hero {
  position: relative;
  min-height: 690px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-bg { position: absolute; z-index: -2; inset: 0; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,9,21,.96) 0%, rgba(5,9,21,.68) 46%, rgba(5,9,21,.22) 100%), linear-gradient(0deg, #070b18 0%, transparent 34%); }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.hero-grid {
  width: var(--shell);
  display: grid;
  grid-template-columns: minmax(0, 690px) 1fr;
  gap: 34px;
  padding: 118px 0 74px;
  margin: 0 auto;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 17px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 6px rgba(255,113,77,.18); }

h1, h2, h3, h4, h5, h6 { margin-top: 0; font-family: var(--display); line-height: 1.1; letter-spacing: -.045em; }
h1 { max-width: 760px; margin-bottom: 22px; font-size: clamp(43px, 5.8vw, 79px); }
h1 strong, h2 strong { color: var(--orange-soft); font-weight: 900; }
h2 { margin-bottom: 16px; font-size: clamp(30px, 3.7vw, 49px); }
h3 { margin-bottom: 10px; font-size: 23px; }
h4 { font-size: 18px; }
h5, h6 { font-size: 15px; }
p { color: var(--muted); }
.hero-lead { max-width: 610px; margin: 0; font-size: 17px; line-height: 1.85; }
.hero-lead strong { color: var(--paper); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 29px; }
.button-primary { color: #12131d; background: var(--orange-soft); box-shadow: 0 13px 35px rgba(255, 113, 77, .25); }
.button-ghost { color: var(--paper); background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.17); }
.button-dark { color: var(--ink); background: var(--lime); }
.button span { font-size: 18px; }

.hero-stats { align-self: end; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid rgba(255,255,255,.18); background: rgba(7,11,24,.58); backdrop-filter: blur(12px); }
.hero-stats div { padding: 21px; border-right: 1px solid rgba(255,255,255,.12); }
.hero-stats div:last-child { border-right: 0; }
.hero-stats strong { display: block; color: var(--lime); font-size: 25px; font-family: var(--display); }
.hero-stats span { color: #b7c0d5; font-size: 12px; }

.ticker { border-bottom: 1px solid var(--line); overflow: hidden; background: #0b1122; }
.ticker-track { display: flex; gap: 27px; width: max-content; padding: 12px 0; color: #bac7db; font-size: 12px; letter-spacing: .08em; animation: ticker 28s linear infinite; }
.ticker-track b { color: var(--orange-soft); }
@keyframes ticker { to { transform: translateX(-28%); } }

.section { padding: 108px 0; }
.section-tight { padding: 72px 0; }
.section-ink { background: var(--panel-deep); }
.section-shade { background: linear-gradient(135deg, #121c34 0%, #0a1123 70%); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 42px; }
.section-heading > p { max-width: 390px; margin-bottom: 0; }
.section-heading .eyebrow { margin-bottom: 12px; }

.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.trust-item { min-height: 160px; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-item span { display: inline-flex; align-items: center; justify-content: center; width: 37px; height: 37px; margin-bottom: 15px; color: var(--ink); background: var(--lime); border-radius: 50%; font-weight: 900; }
.trust-item:nth-child(2) span { background: var(--cyan); }
.trust-item:nth-child(3) span { background: var(--orange-soft); }
.trust-item:nth-child(4) span { background: var(--violet); }
.trust-item h3 { margin-bottom: 4px; font-size: 17px; letter-spacing: -.02em; }
.trust-item p { margin: 0; font-size: 13px; }

.video-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 19px; }
.video-card { grid-column: span 4; position: relative; overflow: hidden; min-height: 100%; background: #111b32; border: 1px solid var(--line); transition: transform .25s ease, border .25s ease, box-shadow .25s ease; }
.video-card:hover { z-index: 1; border-color: rgba(92,225,230,.52); box-shadow: var(--shadow); transform: translateY(-7px); }
.video-card.featured { grid-column: span 6; }
.video-frame { position: relative; overflow: hidden; aspect-ratio: 16/9; background: #02050d; }
.video-frame video, .video-frame img { width: 100%; height: 100%; object-fit: cover; opacity: .91; transition: transform .45s ease, opacity .25s ease; }
.video-card:hover .video-frame video, .video-card:hover .video-frame img { opacity: 1; transform: scale(1.055); }
.video-frame::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 42%, rgba(4,8,19,.8) 100%); }
.video-play { position: absolute; z-index: 2; top: 50%; left: 50%; display: grid; place-items: center; width: 54px; height: 54px; color: #111625; background: var(--lime); border-radius: 50%; transform: translate(-50%,-45%) scale(.8); opacity: 0; transition: opacity .25s ease, transform .25s ease; font-size: 18px; }
.video-card:hover .video-play, .video-card:focus-within .video-play { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.card-duration { position: absolute; z-index: 3; right: 12px; bottom: 10px; padding: 3px 7px; color: #fff; background: rgba(0,0,0,.69); font-size: 11px; font-weight: 700; }
.card-body { padding: 20px 21px 22px; }
.card-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 12px; }
.tag { padding: 3px 8px; color: var(--cyan); background: rgba(92,225,230,.09); border: 1px solid rgba(92,225,230,.18); border-radius: 99px; font-size: 10px; font-weight: 800; letter-spacing: .06em; }
.tag.warm { color: var(--orange-soft); background: rgba(255,113,77,.1); border-color: rgba(255,113,77,.2); }
.card-body h3 { font-size: 21px; }
.card-body p { margin: 0; font-size: 13px; }
.card-meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; color: #91a0bd; font-size: 12px; }
.card-meta b { color: var(--lime); }

.program-rail { display: grid; grid-template-columns: .8fr 1.2fr; min-height: 520px; border: 1px solid var(--line); }
.program-image { position: relative; overflow: hidden; }
.program-image img { width: 100%; height: 100%; min-height: 440px; object-fit: cover; }
.program-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(5,9,19,.7), transparent 55%); }
.program-stamp { position: absolute; z-index: 2; right: 23px; bottom: 22px; padding: 11px 14px; color: var(--ink); background: var(--lime); font-family: var(--display); font-weight: 900; }
.program-content { display: flex; flex-direction: column; justify-content: center; padding: clamp(30px,5vw,72px); background: #101a31; }
.program-content > p { max-width: 575px; }
.program-list { display: grid; gap: 0; margin-top: 14px; border-top: 1px solid var(--line); }
.program-row { display: grid; grid-template-columns: 60px 1fr auto; gap: 18px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.program-row b { color: var(--orange-soft); font-family: var(--display); font-size: 24px; }
.program-row strong { display: block; font-size: 15px; }
.program-row small { color: #94a2bd; }
.program-row span { color: var(--cyan); font-size: 18px; }

.topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.topic-card { min-height: 240px; padding: 25px; display: flex; flex-direction: column; justify-content: space-between; background: rgba(255,255,255,.035); border: 1px solid var(--line); transition: background .2s ease, transform .2s ease; }
.topic-card:hover { background: rgba(255,255,255,.08); transform: translateY(-4px); }
.topic-card > span { display: block; color: var(--cyan); font-family: var(--display); font-size: 31px; font-weight: 900; }
.topic-card:nth-child(2) > span { color: var(--orange-soft); }
.topic-card:nth-child(3) > span { color: var(--lime); }
.topic-card:nth-child(4) > span { color: var(--violet); }
.topic-card h3 { font-size: 20px; }
.topic-card p { margin: 0; font-size: 13px; }
.topic-card a { color: var(--paper); font-size: 13px; font-weight: 800; }

.ai-layout { display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center; }
.ai-visual { position: relative; }
.ai-visual img { width: 100%; border: 1px solid var(--line); box-shadow: var(--shadow); }
.ai-chip { position: absolute; padding: 11px 13px; border: 1px solid rgba(255,255,255,.23); background: rgba(8,13,30,.83); backdrop-filter: blur(10px); box-shadow: var(--shadow); }
.ai-chip strong { display: block; color: var(--lime); font-size: 23px; line-height: 1; }
.ai-chip small { color: #b4c2da; font-size: 11px; }
.chip-one { top: 10%; left: -7%; }
.chip-two { right: -5%; bottom: 12%; }
.check-list { display: grid; gap: 15px; padding: 0; margin: 25px 0 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 31px 1fr; gap: 12px; }
.check-list i { display: grid; place-items: center; width: 26px; height: 26px; color: #071018; background: var(--cyan); border-radius: 50%; font-style: normal; font-weight: 900; }
.check-list strong { display: block; font-size: 15px; }
.check-list small { color: #a5b1c7; }

.community-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.community-image { position: relative; }
.community-image img { width: 100%; min-height: 435px; object-fit: cover; border: 1px solid var(--line); }
.community-quote { position: absolute; right: -25px; bottom: 25px; width: min(76%, 350px); padding: 19px; color: #121825; background: var(--orange-soft); box-shadow: var(--shadow); font-family: var(--display); font-size: 20px; line-height: 1.25; font-weight: 800; }
.community-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 25px; }
.community-badge { padding: 14px; background: rgba(255,255,255,.045); border: 1px solid var(--line); }
.community-badge b { display: block; color: var(--lime); font-size: 17px; }
.community-badge span { color: #9eabc4; font-size: 12px; }

.expert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.expert-card { position: relative; min-height: 340px; padding: 24px; display: flex; flex-direction: column; justify-content: end; overflow: hidden; background: linear-gradient(150deg, #202c4b, #0c1325 64%); border: 1px solid var(--line); }
.expert-card::before { content: ""; position: absolute; top: -52px; right: -47px; width: 180px; height: 180px; border: 1px solid rgba(92,225,230,.26); border-radius: 50%; }
.expert-card:nth-child(2)::before { border-color: rgba(255,173,117,.3); }
.expert-card:nth-child(3)::before { border-color: rgba(209,251,113,.3); }
.expert-card:nth-child(4)::before { border-color: rgba(157,134,255,.3); }
.expert-role { position: relative; color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .13em; }
.expert-card h3 { position: relative; margin: 7px 0; }
.expert-card p { position: relative; margin: 0 0 15px; font-size: 12px; }
.expert-links { position: relative; display: flex; flex-wrap: wrap; gap: 8px; }
.expert-links a { padding: 6px 8px; color: #071018; background: var(--lime); font-size: 11px; font-weight: 800; }
.expert-links a:last-child { color: var(--paper); background: transparent; border: 1px solid var(--line); }

.logo-wall { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.logo-cell { min-height: 89px; display: grid; place-items: center; color: #c1cce0; background: rgba(255,255,255,.04); border: 1px solid var(--line); font-family: var(--display); font-size: 18px; font-weight: 850; letter-spacing: .06em; }
.logo-cell:nth-child(2n) { color: var(--cyan); }
.logo-cell:nth-child(3n) { color: var(--orange-soft); }

.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.how-step { padding: 28px; background: var(--panel); border: 1px solid var(--line); }
.how-step b { display: block; margin-bottom: 29px; color: var(--orange-soft); font-family: var(--display); font-size: 36px; }
.how-step h3 { font-size: 21px; }
.how-step p { margin: 0; font-size: 13px; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card { padding: 24px; background: rgba(255,255,255,.045); border: 1px solid var(--line); }
.review-card > span { color: var(--orange-soft); letter-spacing: .17em; }
.review-card p { color: #d6dff0; font-size: 14px; }
.review-card b { color: var(--cyan); font-size: 12px; }

.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq-item { padding: 19px 21px; border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.faq-item h3 { margin-bottom: 9px; color: var(--paper); font-size: 16px; letter-spacing: -.02em; }
.faq-item p { margin: 0; font-size: 13px; }

.contact-band { display: grid; grid-template-columns: 1.1fr .9fr; overflow: hidden; background: #ececff; color: #111827; }
.contact-band h2, .contact-band p, .contact-band h3, .contact-band strong { color: #111827; }
.contact-copy { padding: clamp(28px,5vw,65px); }
.contact-copy .eyebrow { color: #a73b2c; }
.contact-info { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 25px; }
.contact-info a, .contact-info div { padding: 14px; background: rgba(12,18,41,.06); border: 1px solid rgba(12,18,41,.13); }
.contact-info small { display: block; color: #52627b; }
.contact-info strong { display: block; margin-top: 4px; font-size: 14px; word-break: break-word; }
.contact-photo img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }

.page-hero { padding: 93px 0 64px; background: linear-gradient(135deg, #121d38, #070b18 70%); border-bottom: 1px solid var(--line); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) .9fr; gap: 42px; align-items: end; }
.page-hero h1 { margin-bottom: 0; font-size: clamp(40px,5vw,66px); }
.page-hero p:last-child { margin: 0; font-size: 16px; }

.story-rail { display: grid; grid-template-columns: 150px 1fr; gap: 30px; }
.story-index { color: var(--orange-soft); font-family: var(--display); font-size: 50px; font-weight: 900; line-height: 1; }
.story-rail + .story-rail { padding-top: 28px; margin-top: 28px; border-top: 1px solid var(--line); }
.story-rail h3 { font-size: 26px; }
.story-rail p { margin-bottom: 0; }

.stat-panel { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 30px; border: 1px solid var(--line); }
.stat-panel div { padding: 21px; border-right: 1px solid var(--line); }
.stat-panel div:last-child { border-right: 0; }
.stat-panel b { display: block; color: var(--lime); font-family: var(--display); font-size: 29px; }
.stat-panel span { color: #9eabc4; font-size: 12px; }

.notice { margin-top: 28px; padding: 18px; color: #cfd8e9; background: rgba(255,113,77,.09); border-left: 3px solid var(--orange); font-size: 13px; }
.notice b { color: var(--orange-soft); }

.site-footer { padding-top: 65px; background: #050913; }
.footer-main { display: grid; grid-template-columns: 1.3fr .75fr .75fr 1fr; gap: 30px; padding-bottom: 45px; }
.footer-brand p { max-width: 320px; margin: 15px 0 0; font-size: 13px; }
.footer-links h3 { margin-bottom: 15px; color: var(--paper); font-size: 15px; }
.footer-links a { display: block; margin: 8px 0; color: #9eabc4; font-size: 13px; }
.footer-links a:hover { color: var(--cyan); }
.footer-qr { display: flex; gap: 14px; }
.footer-qr div { width: 104px; text-align: center; font-size: 10px; color: #98a5bf; }
.footer-qr img { width: 84px; height: 84px; padding: 5px; margin: 0 auto 6px; background: #f4f6ff; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 13px; padding: 18px 0; border-top: 1px solid var(--line); }
.footer-bottom p { margin: 0; color: #73809b; font-size: 11px; }
.footer-bottom .mcp-status { color: var(--cyan); }

.share-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 21px; }
.share-row button { padding: 8px 10px; color: var(--paper); background: rgba(255,255,255,.06); border: 1px solid var(--line); border-radius: 5px; font-size: 12px; }
.share-row button:hover { color: var(--ink); background: var(--cyan); }

.status-toast { position: fixed; z-index: 99; right: 22px; bottom: 22px; max-width: min(360px, calc(100% - 44px)); padding: 13px 17px; color: #08111e; background: var(--lime); box-shadow: var(--shadow); transform: translateY(150%); transition: transform .25s ease; font-size: 13px; font-weight: 800; }
.status-toast.show { transform: translateY(0); }

@media (max-width: 1050px) {
  .header-shell { gap: 14px; }
  .main-nav { justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .main-nav::-webkit-scrollbar { display: none; }
  .main-nav a { font-size: 12px; }
  .header-cta { display: none; }
  .hero { min-height: 600px; }
  .hero-grid { grid-template-columns: 1fr .72fr; }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 800px) {
  :root { --shell: min(100% - 32px, 680px); }
  .header-shell { min-height: 64px; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-word { width: 112px; }
  .main-nav { display: none; }
  .search-wrap { min-height: 55px; }
  .search-hint { display: none; }
  .hero { min-height: 620px; }
  .hero-grid { grid-template-columns: 1fr; padding: 100px 0 42px; }
  .hero-stats { max-width: 390px; }
  .section { padding: 72px 0; }
  .section-heading { display: block; }
  .section-heading > p { max-width: none; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .video-card, .video-card.featured { grid-column: span 6; }
  .program-rail, .ai-layout, .community-layout, .contact-band, .page-hero-grid { grid-template-columns: 1fr; }
  .program-image img { min-height: 310px; }
  .community-quote { right: 14px; }
  .ai-visual { margin: 0 12px; }
  .chip-one { left: -11px; }
  .chip-two { right: -11px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 540px) {
  :root { --shell: min(100% - 28px, 500px); }
  h1 { font-size: 41px; }
  h2 { font-size: 33px; }
  .hero { min-height: 560px; }
  .hero-bg img { object-position: 60% center; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats div { padding: 15px; }
  .trust-grid { grid-template-columns: 1fr; }
  .video-grid { display: block; }
  .video-card { margin-bottom: 14px; }
  .topic-grid, .expert-grid, .review-grid, .faq-list, .how-grid { grid-template-columns: 1fr; }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .community-badges, .contact-info { grid-template-columns: 1fr; }
  .story-rail { grid-template-columns: 1fr; gap: 9px; }
  .stat-panel { grid-template-columns: 1fr; }
  .stat-panel div { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat-panel div:last-child { border-bottom: 0; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { display: block; }
  .footer-bottom p + p { margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}