:root {
  --blue: #165dff;
  --blue-deep: #0a328f;
  --navy: #0c1830;
  --ink: #101b31;
  --muted: #657087;
  --line: #dbe2ee;
  --mist: #f2f6fc;
  --paper: #fbfcfe;
  --white: #fff;
  --radius: 20px;
  --shadow: 0 24px 70px rgba(22, 52, 105, .13);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); -webkit-font-smoothing: antialiased; }
body::selection { color: #fff; background: var(--blue); }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img { display: block; width: 100%; }
h1, h2, h3, p, figure { margin-top: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(22, 93, 255, .32); outline-offset: 3px; }

.site-header {
  position: sticky; z-index: 40; top: 0; display: flex; height: 72px; align-items: center; justify-content: space-between;
  padding: 0 max(28px, calc((100vw - 1200px) / 2)); border-bottom: 1px solid rgba(219, 226, 238, .9);
  background: rgba(251, 252, 254, .9); backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 15px; font-weight: 750; }
.brand-mark { display: grid; width: 36px; height: 36px; place-items: center; border-radius: 10px; color: #fff; background: var(--blue); font-size: 13px; font-weight: 800; }
.brand small { display: block; margin-top: 2px; color: #7b879d; font-size: 9px; font-weight: 500; letter-spacing: .05em; }
.desktop-nav { display: flex; gap: 34px; color: #536078; font-size: 13px; }
.desktop-nav a:hover { color: var(--blue); }
.nav-cta, .primary-button, .light-button {
  display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border: 0; border-radius: 11px;
  cursor: pointer; font-weight: 750; transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.nav-cta, .primary-button { color: #fff; background: var(--blue); box-shadow: 0 10px 28px rgba(22, 93, 255, .2); }
.nav-cta:hover, .primary-button:hover { background: #084edc; transform: translateY(-2px); }
.nav-cta:active, .primary-button:active, .light-button:active { transform: translateY(1px); }
.text-link { display: inline-flex; min-height: 48px; align-items: center; gap: 12px; color: var(--ink); font-weight: 700; }
.text-link span { color: var(--blue); font-size: 18px; }
.eyebrow { margin: 0 0 18px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .08em; }

.variant-switcher { position: fixed; z-index: 45; top: 96px; right: 22px; display: grid; gap: 5px; padding: 6px; border-radius: 13px; background: var(--navy); box-shadow: 0 18px 42px rgba(12,24,48,.2); }
.variant-switcher a { display: grid; width: 38px; height: 36px; place-items: center; border-radius: 9px; color: #9eabc2; font-size: 12px; font-weight: 800; }
.variant-switcher a.active { color: var(--ink); background: #fff; }

/* Direction selector */
.selector-page { min-height: 100dvh; background: #edf3fb; }
.selector-shell { width: min(1200px, calc(100% - 48px)); margin: 0 auto; padding: 44px 0 72px; }
.selector-top { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.selector-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; padding: 88px 0 48px; }
.selector-intro p { grid-column: 1 / -1; margin: 0 0 -20px; color: var(--blue); font-size: 13px; font-weight: 800; }
.selector-intro h1 { margin: 0; font-size: clamp(48px, 6vw, 78px); line-height: 1.03; letter-spacing: -.055em; }
.selector-intro > span { max-width: 520px; color: var(--muted); font-size: 17px; line-height: 1.9; }
.selector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.selector-card { overflow: hidden; border-radius: 22px; background: #fff; box-shadow: var(--shadow); transition: transform .25s ease, box-shadow .25s ease; }
.selector-card:hover { transform: translateY(-5px); box-shadow: 0 32px 80px rgba(22,52,105,.18); }
.selector-card img { height: 360px; object-fit: cover; }
.selector-a img { object-position: 54% center; }
.selector-b img { object-position: 60% center; }
.selector-card > div { padding: 30px; }
.selector-card small { color: var(--blue); font-weight: 800; }
.selector-card h2 { min-height: 2.3em; margin: 14px 0 12px; font-size: 31px; line-height: 1.15; letter-spacing: -.035em; }
.selector-card p { margin-bottom: 30px; color: var(--muted); }
.selector-card strong { display: flex; justify-content: space-between; padding-top: 20px; border-top: 1px solid var(--line); }
.selector-card strong span { color: var(--blue); }

/* Shared hero */
.hero { width: min(1280px, calc(100% - 64px)); margin: 0 auto; }
.hero h1 { margin: 0; font-size: clamp(52px, 5.6vw, 78px); line-height: 1.02; letter-spacing: -.06em; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-lead { max-width: 620px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 32px; }

/* A */
.hero-a-new { position: relative; min-height: 760px; padding: 72px 0; }
.hero-a-new .hero-photo { position: absolute; inset: 0 0 0 38%; overflow: hidden; border-radius: var(--radius); background: #dfe9f7; }
.hero-a-new .hero-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(251,252,254,.98) 0%, rgba(251,252,254,.75) 19%, transparent 52%); }
.hero-a-new .hero-photo img { height: 100%; object-fit: cover; object-position: 53% center; }
.hero-a-new .hero-copy { position: relative; z-index: 2; width: 59%; padding: 92px 0 0; }
.hero-a-new h1 { max-width: 760px; }
.proof-bar { display: grid; width: min(1200px, calc(100% - 48px)); grid-template-columns: repeat(3, 1fr); margin: 0 auto; padding: 30px 0 70px; border-bottom: 1px solid var(--line); }
.proof-bar div { padding: 0 32px; border-left: 1px solid var(--line); }
.proof-bar div:first-child { padding-left: 0; border-left: 0; }
.proof-bar strong { display: block; margin-bottom: 8px; font-size: 20px; }
.proof-bar span { color: var(--muted); font-size: 13px; }
.work-story { width: min(1200px, calc(100% - 48px)); margin: 0 auto; padding: 118px 0; }
.section-kicker { max-width: 780px; margin-bottom: 48px; font-size: clamp(34px, 4vw, 54px); font-weight: 800; line-height: 1.15; letter-spacing: -.045em; }
.work-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 20px; }
.work-main, .work-side { overflow: hidden; border-radius: var(--radius); background: #fff; }
.work-main { display: grid; grid-template-columns: 1fr .78fr; }
.work-side { display: flex; flex-direction: column; }
.work-main figure, .work-side figure { position: relative; height: 100%; margin: 0; overflow: hidden; }
.work-main img { height: 100%; min-height: 620px; object-fit: cover; object-position: center 54%; }
.work-side img { height: 360px; object-fit: cover; object-position: center 38%; }
.work-main figcaption, .work-side figcaption { position: absolute; right: 14px; bottom: 14px; padding: 7px 10px; border-radius: 7px; color: #536078; background: rgba(255,255,255,.9); font-size: 10px; }
.work-main > div, .work-side > div { padding: 42px; }
.work-main span, .work-side span { color: var(--blue); font-size: 12px; font-weight: 800; }
.work-main h2 { margin: 90px 0 20px; font-size: 40px; line-height: 1.15; letter-spacing: -.04em; }
.work-side h3 { margin: 36px 0 16px; font-size: 28px; line-height: 1.2; letter-spacing: -.03em; }
.work-main p, .work-side p { margin-bottom: 0; color: var(--muted); line-height: 1.85; }
.asset-note { margin: 18px 0 0; color: #8a95a9; font-size: 11px; line-height: 1.7; }
.process-feature { display: grid; grid-template-columns: .82fr 1.18fr; min-height: 800px; background: var(--navy); color: #fff; }
.process-image { position: relative; min-height: 760px; overflow: hidden; }
.process-image img { height: 100%; object-fit: cover; object-position: center; }
.process-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 65%, var(--navy)); }
.process-image span { position: absolute; z-index: 2; left: 28px; bottom: 24px; padding: 8px 11px; border-radius: 8px; background: rgba(12,24,48,.7); font-size: 11px; }
.process-copy { display: flex; flex-direction: column; justify-content: center; padding: 80px clamp(50px, 7vw, 120px); }
.process-copy h2 { margin-bottom: 52px; font-size: clamp(38px, 4vw, 58px); line-height: 1.1; letter-spacing: -.045em; }
.process-copy ol { margin: 0; padding: 0; list-style: none; counter-reset: process; }
.process-copy li { display: grid; grid-template-columns: 180px 1fr; gap: 30px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.16); counter-increment: process; }
.process-copy li b::before { content: "0" counter(process) "  "; color: #6e99ff; }
.process-copy li span { color: #b9c5dc; line-height: 1.75; }
.role-section { width: min(1200px, calc(100% - 48px)); margin: 0 auto; padding: 120px 0; }
.role-intro { display: grid; grid-template-columns: 1.35fr .65fr; gap: 70px; align-items: end; margin-bottom: 58px; }
.role-intro h2 { margin: 0; font-size: clamp(42px, 5vw, 66px); line-height: 1.08; letter-spacing: -.05em; }
.role-intro p { margin-bottom: 4px; color: var(--muted); line-height: 1.85; }
.role-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.role-list article { padding: 28px 28px 0 0; }
.role-list article + article { padding-left: 28px; border-left: 1px solid var(--line); }
.role-list span { color: var(--blue); font-size: 12px; }
.role-list h3 { margin: 38px 0 10px; font-size: 28px; }
.role-list strong { display: block; margin-bottom: 14px; }
.role-list p { margin-bottom: 0; color: var(--muted); line-height: 1.75; }

/* B */
.hero-b-new { display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; min-height: 720px; padding: 72px 0; }
.b-hero-copy h1 { font-size: clamp(48px, 5vw, 70px); }
.b-hero-photo { position: relative; overflow: hidden; height: 550px; margin: 0; border-radius: var(--radius); box-shadow: var(--shadow); }
.b-hero-photo img { height: 100%; object-fit: cover; object-position: 62% center; }
.b-hero-photo figcaption { position: absolute; right: 24px; bottom: 24px; left: 24px; padding: 20px; border-radius: 12px; background: rgba(255,255,255,.93); backdrop-filter: blur(12px); }
.b-hero-photo figcaption strong, .b-hero-photo figcaption span { display: block; }
.b-hero-photo figcaption span { margin-top: 4px; color: var(--muted); font-size: 12px; }
.judgment { display: grid; width: min(1200px, calc(100% - 48px)); grid-template-columns: 180px 1fr; gap: 60px; margin: 0 auto; padding: 118px 0; border-top: 1px solid var(--line); }
.judgment > p { color: var(--blue); font-size: 13px; font-weight: 800; }
.judgment h2 { grid-column: 2; margin: -34px 0 0; font-size: clamp(48px, 6vw, 78px); line-height: 1.1; letter-spacing: -.05em; }
.judgment h2 em { color: var(--blue); font-style: normal; }
.judgment-copy { grid-column: 2; display: grid; grid-template-columns: 1fr .7fr; gap: 60px; margin-top: 18px; }
.judgment-copy p { margin: 0; font-size: 21px; line-height: 1.75; }
.judgment-copy span { color: var(--muted); line-height: 1.8; }
.comparison-section { padding: 110px max(24px, calc((100vw - 1200px) / 2)); background: #eaf1fb; }
.comparison-heading { display: grid; grid-template-columns: 1fr .55fr; gap: 80px; align-items: end; margin-bottom: 48px; }
.comparison-heading h2 { margin: 0; font-size: clamp(40px, 4.6vw, 62px); line-height: 1.12; letter-spacing: -.045em; }
.comparison-heading p { margin-bottom: 6px; color: var(--muted); line-height: 1.8; }
.comparison { display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.comparison-col { padding: 44px 48px; }
.comparison-col + .comparison-col { border-left: 1px solid var(--line); }
.comparison-col small { display: block; margin-bottom: 35px; color: var(--muted); font-weight: 800; }
.comparison-col p { margin: 0; padding: 18px 0; border-top: 1px solid var(--line); font-size: 17px; }
.comparison-col strong { display: block; margin-top: 34px; font-size: 24px; line-height: 1.35; }
.accent-col { color: #fff; background: var(--blue-deep); }
.accent-col small, .accent-col p { color: #c5d4f4; }
.accent-col p { border-color: rgba(255,255,255,.17); }
.method-section { display: grid; width: min(1200px, calc(100% - 48px)); grid-template-columns: .8fr 1.2fr; gap: 100px; margin: 0 auto; padding: 120px 0; }
.method-title { position: sticky; top: 120px; align-self: start; }
.method-title h2 { margin-bottom: 28px; font-size: clamp(42px, 4.5vw, 60px); line-height: 1.1; letter-spacing: -.045em; }
.method-title > p:last-child { color: var(--muted); line-height: 1.85; }
.method-steps article { padding: 42px 0; border-top: 1px solid var(--line); }
.method-steps article:first-child { padding-top: 0; border-top: 0; }
.method-steps span { color: var(--blue); font-size: 13px; font-weight: 800; }
.method-steps h3 { margin: 14px 0; font-size: 29px; line-height: 1.3; letter-spacing: -.025em; }
.method-steps p { margin-bottom: 0; color: var(--muted); line-height: 1.8; }
.evidence-photo { display: grid; grid-template-columns: 1fr 1fr; min-height: 720px; background: var(--navy); color: #fff; }
.evidence-photo > img { height: 100%; min-height: 720px; object-fit: cover; object-position: center; }
.evidence-photo > div { display: flex; flex-direction: column; justify-content: center; padding: 80px clamp(50px, 7vw, 110px); }
.evidence-photo small { color: #7ca6ff; font-weight: 800; }
.evidence-photo h2 { margin: 24px 0; font-size: clamp(38px, 4vw, 56px); line-height: 1.15; letter-spacing: -.04em; }
.evidence-photo p { color: #bdc9df; line-height: 1.85; }
.evidence-photo span { margin-top: 24px; color: #7e8ba5; font-size: 11px; line-height: 1.7; }

/* Shared lower sections */
.teacher-section { display: grid; width: min(1200px, calc(100% - 48px)); grid-template-columns: .8fr 1.2fr; gap: 80px; margin: 0 auto; padding: 120px 0; }
.teacher-section > div:first-child h2 { margin: 0; font-size: clamp(40px, 4.3vw, 58px); line-height: 1.12; letter-spacing: -.045em; }
.teacher-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.teacher-list article { display: flex; min-height: 390px; flex-direction: column; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.teacher-list small { color: var(--blue); font-weight: 800; }
.teacher-list h3 { margin: 58px 0 16px; font-size: 30px; }
.teacher-list p { color: var(--muted); line-height: 1.8; }
.teacher-list strong { margin-top: auto; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13px; line-height: 1.7; }
.b-teachers { border-top: 1px solid var(--line); }
.final-cta { display: grid; grid-template-columns: 1fr 320px; gap: 80px; align-items: center; padding: 100px max(24px, calc((100vw - 1200px) / 2)); color: #fff; background: var(--blue); }
.final-cta small { font-weight: 800; }
.final-cta h2 { margin: 24px 0; font-size: clamp(44px, 5vw, 68px); line-height: 1.07; letter-spacing: -.05em; }
.final-cta p { max-width: 700px; color: #d8e4ff; font-size: 17px; line-height: 1.85; }
.light-button { margin-top: 18px; color: var(--blue-deep); background: #fff; }
.qr-panel { padding: 24px; border-radius: var(--radius); color: var(--ink); background: #fff; text-align: center; }
.qr-placeholder { display: grid; width: 172px; height: 172px; margin: 0 auto 18px; place-items: center; border: 1px dashed #8fa4c7; color: #6c7c97; background: #f3f6fb; font-size: 12px; line-height: 1.5; }
.qr-panel strong, .qr-panel span { display: block; }
.qr-panel span { margin-top: 7px; color: var(--muted); font-size: 11px; }
.b-final { background: var(--blue-deep); }

.mobile-action { position: fixed; z-index: 50; right: 12px; bottom: calc(10px + env(safe-area-inset-bottom)); left: 12px; display: none; min-height: 56px; align-items: center; justify-content: space-between; padding: 8px 8px 8px 17px; border-radius: 14px; color: #fff; background: var(--navy); box-shadow: 0 15px 38px rgba(12,24,48,.28); }
.mobile-action strong { font-size: 13px; }
.mobile-action small { display: block; margin-top: 2px; color: #aebbd2; font-size: 9px; }
.mobile-action button { min-height: 40px; padding: 0 17px; border: 0; border-radius: 9px; color: var(--blue-deep); background: #fff; font-weight: 800; }
.contact-drawer { position: fixed; z-index: 80; inset: 0; display: none; align-items: flex-end; justify-content: center; padding: 20px; background: rgba(4,13,31,.55); }
.contact-drawer.open { display: flex; }
.drawer-card { width: min(500px, 100%); padding: 28px; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.drawer-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.drawer-head h2 { margin: 0; font-size: 24px; }
.drawer-close { display: grid; width: 38px; height: 38px; place-items: center; border: 0; border-radius: 10px; background: #edf2fa; cursor: pointer; }
.drawer-body { display: grid; grid-template-columns: 172px 1fr; gap: 24px; align-items: center; margin-top: 26px; }
.wechat-qr { margin: 0; }
.wechat-qr img { display: block; width: 172px; aspect-ratio: 1; object-fit: contain; border-radius: 12px; background: #fff; }
.wechat-qr figcaption { margin-top: 9px; color: #687891; font-size: 11px; text-align: center; }
.contact-copy > strong { font-size: 20px; }
.drawer-body p { color: var(--muted); line-height: 1.7; }
.wechat-id { display: grid; grid-template-columns: 1fr auto; gap: 3px 10px; padding: 12px; border-radius: 10px; color: #52617a; background: var(--mist); font-size: 12px; }
.wechat-id span { color: #687891; }
.wechat-id b { color: var(--ink); font-size: 14px; letter-spacing: .02em; }
.wechat-id button { grid-column: 1 / -1; width: 100%; min-height: 38px; margin-top: 7px; border: 0; border-radius: 8px; color: #fff; background: var(--blue-deep); cursor: pointer; font-weight: 750; }
.wechat-id button:hover { background: #153f9f; }
.wechat-id button:focus-visible { outline: 3px solid #8ab4ff; outline-offset: 2px; }
.copy-status { grid-column: 1 / -1; min-height: 15px; color: #315fc8; text-align: center; }

@media (max-width: 900px) {
  .site-header { height: 62px; padding: 0 18px; }
  .brand { font-size: 13px; }
  .brand-mark { width: 32px; height: 32px; }
  .desktop-nav { display: none; }
  .site-header .nav-cta { width: 74px; min-height: 40px; padding: 0; font-size: 0; }
  .site-header .nav-cta::after { content: "体验课"; font-size: 12px; }
  .variant-switcher { position: sticky; z-index: 35; top: 70px; right: auto; width: max-content; grid-template-columns: repeat(2, 1fr); margin: 8px 12px 0 auto; }
  .hero { width: min(100% - 36px, 620px); }
  .hero h1 { font-size: 46px; line-height: 1.06; }
  .hero-lead { margin-top: 22px; font-size: 15px; }
  .hero-actions { display: grid; gap: 10px; margin-top: 24px; }
  .primary-button, .text-link { width: 100%; }
  .text-link { justify-content: center; }
  .selector-shell { width: min(100% - 36px, 620px); padding-top: 28px; }
  .selector-intro { grid-template-columns: 1fr; gap: 18px; padding: 62px 0 34px; }
  .selector-intro p { margin-bottom: 0; }
  .selector-intro h1 { font-size: 46px; }
  .selector-grid { grid-template-columns: 1fr; }
  .selector-card img { height: 240px; }
  .selector-card h2 { min-height: 0; font-size: 28px; }
  .hero-a-new { display: flex; min-height: auto; flex-direction: column; padding: 44px 0 56px; }
  .hero-a-new .hero-photo { position: relative; inset: auto; order: 2; height: 350px; margin-top: 34px; border-radius: 16px; }
  .hero-a-new .hero-photo::after { display: none; }
  .hero-a-new .hero-photo img { object-position: 53% center; }
  .hero-a-new .hero-copy { width: 100%; padding: 0; }
  .proof-bar { width: min(100% - 36px, 620px); grid-template-columns: 1fr; padding: 0 0 60px; }
  .proof-bar div, .proof-bar div:first-child { padding: 20px 0; border: 0; border-top: 1px solid var(--line); }
  .work-story { width: min(100% - 36px, 620px); padding: 76px 0; }
  .section-kicker { font-size: 36px; }
  .work-grid, .work-main { grid-template-columns: 1fr; }
  .work-main img { min-height: 420px; }
  .work-side img { height: 420px; }
  .work-main > div, .work-side > div { padding: 28px; }
  .work-main h2 { margin-top: 38px; font-size: 32px; }
  .process-feature { grid-template-columns: 1fr; }
  .process-image { min-height: 520px; }
  .process-image::after { background: linear-gradient(0deg, var(--navy), transparent 30%); }
  .process-copy { padding: 58px 18px 76px; }
  .process-copy h2 { font-size: 37px; }
  .process-copy li { grid-template-columns: 1fr; gap: 10px; }
  .role-section { width: min(100% - 36px, 620px); padding: 76px 0; }
  .role-intro { grid-template-columns: 1fr; gap: 22px; }
  .role-intro h2 { font-size: 39px; }
  .role-list { grid-template-columns: 1fr; }
  .role-list article, .role-list article + article { padding: 28px 0; border: 0; border-top: 1px solid var(--line); }
  .role-list article:first-child { border-top: 0; }
  .role-list h3 { margin-top: 18px; }
  .hero-b-new { grid-template-columns: 1fr; gap: 34px; min-height: auto; padding: 44px 0 64px; }
  .b-hero-copy h1 { font-size: 43px; }
  .b-hero-photo { height: 390px; border-radius: 16px; }
  .judgment { width: min(100% - 36px, 620px); grid-template-columns: 1fr; gap: 16px; padding: 76px 0; }
  .judgment h2, .judgment-copy { grid-column: 1; }
  .judgment h2 { margin: 0; font-size: 43px; }
  .judgment-copy { grid-template-columns: 1fr; gap: 22px; }
  .judgment-copy p { font-size: 18px; }
  .comparison-section { padding: 76px 18px; }
  .comparison-heading, .comparison { grid-template-columns: 1fr; gap: 22px; }
  .comparison-heading h2 { font-size: 38px; }
  .comparison-col { padding: 30px 24px; }
  .comparison-col + .comparison-col { border: 0; }
  .method-section { width: min(100% - 36px, 620px); grid-template-columns: 1fr; gap: 44px; padding: 76px 0; }
  .method-title { position: static; }
  .method-title h2 { font-size: 39px; }
  .evidence-photo { grid-template-columns: 1fr; }
  .evidence-photo > img { min-height: 540px; }
  .evidence-photo > div { padding: 58px 18px 76px; }
  .evidence-photo h2 { font-size: 38px; }
  .teacher-section { width: min(100% - 36px, 620px); grid-template-columns: 1fr; gap: 40px; padding: 76px 0; }
  .teacher-section > div:first-child h2 { font-size: 38px; }
  .teacher-list { grid-template-columns: 1fr; }
  .teacher-list article { min-height: 330px; padding: 28px; }
  .final-cta { grid-template-columns: 1fr; padding: 72px 18px 118px; }
  .final-cta h2 { font-size: 42px; }
  .final-cta .qr-panel { display: none; }
  .mobile-action { display: flex; }
  .drawer-card { padding: 22px; }
  .drawer-body { grid-template-columns: 1fr; }
  .wechat-qr { margin: 0 auto; }
}

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

/* Continuous canvas redesign */
body:not(.selector-page) { background: #fff; }
.site-header { padding-inline: clamp(24px, 5vw, 80px); background: rgba(255,255,255,.94); }
.nav-cta, .primary-button, .light-button { border-radius: 8px; }

.hero { width: 100%; max-width: none; margin: 0; }
.hero-a-new { min-height: calc(100dvh - 72px); padding: 0; background: #f4f7fb; }
.hero-a-new .hero-photo { inset: 0 0 0 50%; border-radius: 0; }
.hero-a-new .hero-photo::after { background: linear-gradient(90deg, #f4f7fb 0, rgba(244,247,251,.82) 17%, transparent 52%); }
.hero-a-new .hero-copy { width: 58%; padding: clamp(90px, 11vh, 130px) 0 80px clamp(32px, 7vw, 112px); }
.hero-a-new h1 { max-width: 800px; }

.hero-b-new { grid-template-columns: 1fr 1fr; gap: 0; min-height: calc(100dvh - 72px); padding: 0; background: #f4f7fb; }
.b-hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 72px clamp(44px, 6vw, 100px); }
.b-hero-photo { height: 100%; min-height: calc(100dvh - 72px); border-radius: 0; box-shadow: none; }
.b-hero-photo figcaption { right: 32px; bottom: 32px; left: 32px; border-radius: 0; }

.proof-bar { width: 100%; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 36px clamp(32px, 7vw, 112px); border: 0; background: #fff; }
.proof-bar div { padding-inline: 34px; }

.work-story { width: 100%; margin: 0; padding: 120px clamp(32px, 7vw, 112px); background: #fff; }
.section-kicker { max-width: 900px; }
.work-grid { grid-template-columns: 1.25fr .75fr; gap: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.work-main, .work-side { border-radius: 0; background: transparent; }
.work-main { grid-template-columns: 1fr .82fr; }
.work-side { border-left: 1px solid var(--line); }
.work-main > div, .work-side > div { padding: 44px; }
.work-main figure, .work-side figure { border-radius: 0; }
.work-main figcaption, .work-side figcaption { right: 0; bottom: 0; border-radius: 0; }

.process-feature { min-height: 760px; }
.process-copy { padding-right: clamp(50px, 7vw, 112px); }
.role-section { width: 100%; margin: 0; padding: 120px clamp(32px, 7vw, 112px); background: #fff; }
.teacher-section { width: 100%; margin: 0; padding: 120px clamp(32px, 7vw, 112px); background: #f4f7fb; }
.teacher-list { gap: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.teacher-list article { min-height: 390px; padding: 38px; border: 0; border-radius: 0; background: transparent; }
.teacher-list article + article { border-left: 1px solid var(--line); }

.judgment { width: 100%; margin: 0; padding: 120px clamp(32px, 7vw, 112px); border: 0; background: #fff; }
.comparison-section { padding: 120px clamp(32px, 7vw, 112px); }
.comparison { border-radius: 0; box-shadow: none; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.method-section { width: 100%; margin: 0; padding: 120px clamp(32px, 7vw, 112px); background: #fff; }
.method-steps { border-top: 1px solid var(--ink); }
.method-steps article:first-child { padding-top: 42px; }
.evidence-photo { min-height: 760px; }
.evidence-photo > img { min-height: 760px; }
.b-teachers { border: 0; }
.final-cta { min-height: 620px; padding: 100px clamp(32px, 7vw, 112px); }
.qr-panel, .drawer-card { border-radius: 0; }

@media (min-width: 901px) and (max-width: 1180px) {
  .site-header { padding-inline: 28px; }
  .hero-a-new .hero-copy { width: 62%; padding-left: 42px; }
  .hero-a-new .hero-photo { left: 44%; }
  .hero-a-new h1 { font-size: clamp(52px, 6vw, 68px); }
  .hero-b-new { grid-template-columns: 1.05fr .95fr; }
  .b-hero-copy { padding-inline: 42px; }
  .b-hero-copy h1 { font-size: clamp(47px, 5.5vw, 62px); }
  .proof-bar, .work-story, .role-section, .teacher-section, .judgment, .comparison-section, .method-section, .final-cta { padding-inline: 42px; }
  .work-grid { grid-template-columns: 1fr; }
  .work-side { display: grid; grid-template-columns: .72fr 1fr; border-top: 1px solid var(--line); border-left: 0; }
  .work-side img { height: 430px; }
  .process-feature, .evidence-photo { grid-template-columns: 1fr 1fr; }
  .process-copy, .evidence-photo > div { padding: 62px 42px; }
  .process-copy h2, .evidence-photo h2 { font-size: 44px; }
  .process-copy li { grid-template-columns: 140px 1fr; }
  .role-intro, .comparison-heading { grid-template-columns: 1fr; gap: 24px; }
  .teacher-section { grid-template-columns: 1fr; gap: 52px; }
  .method-section { grid-template-columns: .8fr 1.2fr; gap: 60px; }
}

@media (max-width: 900px) {
  .site-header { background: #fff; }
  .hero-a-new, .hero-b-new { width: 100%; min-height: auto; padding-inline: 0; background: #f4f7fb; }
  .hero-b-new { grid-template-columns: 1fr; gap: 0; }
  .hero-a-new .hero-copy, .b-hero-copy { width: 100%; padding: 54px 20px 42px; }
  .hero-a-new .hero-photo { position: relative; inset: auto; order: 2; width: 100%; height: 420px; margin: 0; border-radius: 0; }
  .b-hero-photo { height: 460px; min-height: 0; border-radius: 0; }
  .b-hero-photo figcaption { right: 20px; bottom: 20px; left: 20px; }
  .proof-bar { width: 100%; padding: 16px 20px 48px; }
  .work-story, .role-section, .teacher-section, .judgment, .comparison-section, .method-section, .final-cta { width: 100%; padding-right: 20px; padding-left: 20px; }
  .work-grid { border-bottom: 0; }
  .work-main, .work-side { border-bottom: 1px solid var(--ink); }
  .work-side { border-left: 0; }
  .work-main > div, .work-side > div { padding: 30px 0; }
  .work-main figcaption, .work-side figcaption { right: 0; }
  .process-image, .evidence-photo > img { min-height: 560px; }
  .process-copy, .evidence-photo > div { padding-right: 20px; padding-left: 20px; }
  .role-list article, .role-list article + article { padding: 30px 0; }
  .comparison { border-bottom: 1px solid var(--ink); }
  .comparison-col { padding: 32px 0; }
  .accent-col { margin-inline: -20px; padding-inline: 20px; }
  .teacher-list article { min-height: 0; padding: 34px 0; }
  .teacher-list article + article { border-top: 1px solid var(--line); border-left: 0; }
  .final-cta { min-height: 0; }
}

/* Direction A: warm, mobile-first future learning brand */
.page-a {
  --a-blue: #1764ff;
  --a-blue-deep: #0b2f75;
  --a-sky: #dff3ff;
  --a-yellow: #ffd84d;
  --a-cream: #fffaf0;
  --a-ink: #11213d;
  --a-muted: #52627d;
  color: var(--a-ink);
  background: var(--a-cream);
}
.page-a .site-header {
  border-bottom-color: rgba(17,33,61,.08);
  background: rgba(255,250,240,.9);
}
.page-a .brand-mark { border-radius: 12px; background: var(--a-blue); transform: rotate(-4deg); }
.page-a .nav-cta,
.page-a .primary-button { border-radius: 14px; background: var(--a-blue); box-shadow: 0 14px 30px rgba(23,100,255,.22); }
.page-a .light-button { border-radius: 14px; color: var(--a-blue-deep); background: var(--a-yellow); box-shadow: 0 14px 32px rgba(255,216,77,.24); }
.page-a .primary-button:active,
.page-a .nav-cta:active,
.page-a .light-button:active { transform: translateY(1px) scale(.985); }

.future-hero {
  display: grid;
  min-height: calc(100dvh - 72px);
  grid-template-columns: 1.02fr .98fr;
  overflow: hidden;
  background: var(--a-sky);
}
.future-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 40px 80px clamp(40px, 7vw, 112px);
}
.future-tag,
.future-why-lead > span,
.creation-world header > span,
.thinking-copy > span,
.future-teachers > header > span,
.future-closing > div > span {
  display: block;
  margin-bottom: 20px;
  color: var(--a-blue);
  font-size: 14px;
  font-weight: 850;
  letter-spacing: .08em;
}
.future-hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(60px, 5.7vw, 82px);
  line-height: .98;
  letter-spacing: -.065em;
}
.future-hero h1 em { color: var(--a-blue); font-style: normal; }
.future-hero-copy > p:not(.future-tag) {
  max-width: 590px;
  margin: 32px 0 0;
  color: var(--a-muted);
  font-size: 18px;
  line-height: 1.85;
}
.future-actions { display: flex; align-items: center; gap: 26px; margin-top: 36px; }
.future-actions > a { min-height: 48px; display: inline-flex; align-items: center; font-weight: 800; }
.future-actions > a::after { content: "→"; margin-left: 10px; color: var(--a-blue); }
.future-visual { position: relative; min-height: 660px; overflow: hidden; background: #bfe9ff; }
.future-child { height: 100%; object-fit: cover; object-position: 52% center; }
.future-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--a-sky), transparent 20%); pointer-events: none; }
.future-character { position: absolute; z-index: 2; width: clamp(125px, 12vw, 190px); aspect-ratio: 1; object-fit: cover; border: 8px solid #fff; border-radius: 28px; box-shadow: 0 24px 60px rgba(11,47,117,.2); }
.future-character-one { right: 7%; bottom: 9%; transform: rotate(5deg); }
.future-character-two { top: 9%; right: 5%; transform: rotate(-5deg); }
.future-visual > p { position: absolute; z-index: 3; right: 25%; bottom: 9%; max-width: 230px; margin: 0; padding: 18px 22px; border-radius: 18px; background: var(--a-yellow); font-size: 17px; font-weight: 850; line-height: 1.45; transform: rotate(-2deg); }

.future-why {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: clamp(60px, 9vw, 150px);
  align-items: end;
  padding: 130px clamp(32px, 7vw, 112px);
  background: var(--a-cream);
}
.future-why h2,
.creation-world header h2,
.thinking-copy h2,
.future-teachers header h2,
.future-closing h2 {
  margin: 0;
  font-size: clamp(46px, 5vw, 72px);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.future-why h2 em { color: var(--a-blue); font-style: normal; }
.future-why-copy p { margin-bottom: 34px; color: var(--a-muted); font-size: 19px; line-height: 1.9; }
.future-why-copy strong { display: block; padding: 26px 0 0 28px; border-top: 1px solid rgba(17,33,61,.18); border-left: 6px solid var(--a-yellow); font-size: 23px; line-height: 1.6; }

.creation-world { padding: 128px clamp(32px, 7vw, 112px); background: #fff; }
.creation-world > header { display: grid; grid-template-columns: .42fr 1fr; gap: 50px; align-items: start; margin-bottom: 64px; }
.creation-world header > span { margin-top: 10px; }
.creation-world header h2 { font-size: clamp(44px, 4.7vw, 68px); }
.creation-stage { display: grid; grid-template-columns: 1.05fr .95fr; overflow: hidden; border-radius: 32px; background: var(--a-sky); }
.creation-hero { position: relative; min-height: 720px; margin: 0; overflow: hidden; }
.creation-hero img { height: 100%; object-fit: cover; }
.creation-hero figcaption { position: absolute; right: 24px; bottom: 24px; left: 24px; padding: 20px 24px; border-radius: 16px; background: rgba(255,255,255,.93); font-weight: 750; line-height: 1.6; backdrop-filter: blur(12px); }
.creation-steps { display: flex; flex-direction: column; justify-content: center; padding: 54px clamp(34px, 5vw, 76px); }
.creation-steps article { display: grid; grid-template-columns: 54px 1fr; gap: 20px; padding: 28px 0; border-bottom: 1px solid rgba(17,33,61,.13); }
.creation-steps article:last-child { border-bottom: 0; }
.creation-steps b { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 14px; color: var(--a-blue-deep); background: var(--a-yellow); }
.creation-steps h3 { margin: 2px 0 10px; font-size: 27px; letter-spacing: -.025em; }
.creation-steps p { margin: 0; color: var(--a-muted); line-height: 1.8; }
.creation-outcomes { display: grid; grid-template-columns: .92fr 1.08fr; gap: 0; margin-top: 24px; border-radius: 32px; overflow: hidden; background: var(--a-blue-deep); }
.creation-outcomes figure { position: relative; min-height: 420px; margin: 0; }
.creation-outcomes img { height: 100%; object-fit: cover; }
.creation-outcomes figcaption { position: absolute; inset: auto 22px 22px; padding: 18px 20px; border-radius: 16px; background: rgba(255,255,255,.93); }
.creation-outcomes figcaption strong,
.creation-outcomes figcaption span { display: block; }
.creation-outcomes figcaption span { margin-top: 6px; color: var(--a-muted); font-size: 13px; line-height: 1.55; }
.creation-outcomes > div { display: grid; grid-template-columns: 1fr 1fr; align-content: center; gap: 14px; padding: clamp(36px, 6vw, 88px); }
.creation-outcomes > div p { margin: 0; padding: 20px; border: 1px solid rgba(255,255,255,.16); border-radius: 16px; color: #fff; font-size: 18px; font-weight: 800; }
.page-a .asset-note { margin-top: 20px; color: #7a879b; }

.thinking-section { display: grid; grid-template-columns: .92fr 1.08fr; min-height: 780px; background: #fff1b8; }
.thinking-photo { position: relative; min-height: 720px; overflow: hidden; }
.thinking-photo img { height: 100%; object-fit: cover; }
.thinking-photo > span { position: absolute; left: 22px; bottom: 22px; padding: 9px 12px; border-radius: 10px; background: rgba(255,255,255,.88); font-size: 11px; }
.thinking-copy { display: flex; flex-direction: column; justify-content: center; padding: 90px clamp(44px, 7vw, 112px); }
.thinking-copy h2 { font-size: clamp(44px, 4.6vw, 66px); }
.thinking-copy > p { max-width: 720px; margin: 34px 0; color: #4f5d73; font-size: 18px; line-height: 1.9; }
.thinking-path { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.thinking-path b { padding: 16px 18px; border-radius: 14px; color: #fff; background: var(--a-blue-deep); text-align: center; }

.page-a .future-teachers { display: block; padding: 128px clamp(32px, 7vw, 112px); background: var(--a-sky); }
.future-teachers > header { display: grid; grid-template-columns: .42fr 1fr; gap: 50px; margin-bottom: 64px; }
.future-teachers > header > span { margin-top: 10px; }
.page-a .future-teachers .teacher-list { gap: 22px; border: 0; }
.page-a .future-teachers .teacher-list article { min-height: 440px; padding: clamp(32px, 4vw, 56px); border: 0; border-radius: 28px; background: #fff; box-shadow: 0 20px 50px rgba(11,47,117,.08); }
.page-a .future-teachers .teacher-list article + article { border: 0; }
.school-name { display: block; margin: 0 0 12px; padding: 0; border: 0 !important; color: var(--a-blue); font-size: clamp(40px, 4.4vw, 66px) !important; line-height: 1; letter-spacing: -.055em; }
.page-a .future-teachers .teacher-list small { color: var(--a-ink); font-size: 15px; }
.page-a .future-teachers .teacher-list h3 { margin: 56px 0 14px; font-size: 30px; }
.page-a .future-teachers .teacher-list p { margin: 0; color: var(--a-muted); font-size: 17px; line-height: 1.85; }
.teacher-note { max-width: 780px; margin: 30px 0 0; color: var(--a-muted); font-size: 13px; line-height: 1.7; }

.future-closing { display: grid; grid-template-columns: 1fr 340px; gap: clamp(60px, 9vw, 150px); align-items: center; padding: 120px clamp(32px, 7vw, 112px); color: #fff; background: var(--a-blue-deep); }
.future-closing > div > span { color: #8fc3ff; }
.future-closing h2 { max-width: 800px; color: var(--a-yellow); font-size: clamp(52px, 6vw, 84px); }
.future-closing > div > p { max-width: 760px; margin: 30px 0; color: #d6e4ff; font-size: 20px; line-height: 1.85; }
.future-closing aside { padding: 28px; border-radius: 24px; color: var(--a-ink); background: #fff; }
.future-closing aside > strong { font-size: 21px; }
.future-closing aside > p { margin: 12px 0 22px; color: var(--a-muted); line-height: 1.7; }
.future-closing .qr-placeholder { margin-bottom: 0; border-radius: 16px; }
.page-a .drawer-card { border-radius: 24px; }
.page-a .mobile-action { background: var(--a-blue-deep); }

@media (max-width: 900px) {
  .page-a .site-header { height: 60px; padding: 0 14px; }
  .page-a .brand { gap: 8px; font-size: 12px; }
  .page-a .brand small { font-size: 8px; }
  .page-a .brand-mark { width: 32px; height: 32px; border-radius: 10px; }
  .page-a .site-header .nav-cta { width: auto; min-width: 82px; padding: 0 12px; border-radius: 12px; font-size: 0; }
  .page-a .site-header .nav-cta::after { content: "联系我们"; font-size: 12px; }
  .future-hero { min-height: auto; grid-template-columns: 1fr; }
  .future-hero-copy { padding: 46px 20px 38px; }
  .future-tag { margin-bottom: 15px; font-size: 12px; }
  .future-hero h1 { font-size: clamp(46px, 13.3vw, 56px); line-height: 1.02; }
  .future-hero-copy > p:not(.future-tag) { margin-top: 22px; font-size: 16px; line-height: 1.75; }
  .future-actions { display: grid; gap: 8px; margin-top: 26px; }
  .future-actions .primary-button { width: 100%; min-height: 52px; }
  .future-actions > a { justify-content: center; font-size: 14px; }
  .future-visual { min-height: 430px; }
  .future-visual::after { display: none; }
  .future-child { height: 430px; object-position: 59% center; }
  .future-character { width: 92px; border-width: 5px; border-radius: 20px; }
  .future-character-one { right: 18px; bottom: 20px; }
  .future-character-two { top: 18px; right: auto; left: 18px; }
  .future-visual > p { right: auto; bottom: 20px; left: 18px; max-width: 180px; padding: 14px 16px; border-radius: 15px; font-size: 14px; }

  .future-why,
  .creation-world,
  .page-a .future-teachers,
  .future-closing { padding: 78px 20px; }
  .future-why { grid-template-columns: 1fr; gap: 36px; }
  .future-why-lead > span,
  .creation-world header > span,
  .thinking-copy > span,
  .future-teachers > header > span,
  .future-closing > div > span { margin-bottom: 14px; font-size: 12px; }
  .future-why h2,
  .creation-world header h2,
  .thinking-copy h2,
  .future-teachers header h2,
  .future-closing h2 { font-size: 39px; line-height: 1.12; }
  .future-why-copy p { margin-bottom: 24px; font-size: 16px; line-height: 1.8; }
  .future-why-copy strong { padding: 20px 0 0 18px; font-size: 18px; line-height: 1.6; }

  .creation-world > header,
  .future-teachers > header { display: block; margin-bottom: 36px; }
  .creation-stage { grid-template-columns: 1fr; border-radius: 24px; }
  .creation-hero { min-height: 430px; }
  .creation-hero figcaption { right: 14px; bottom: 14px; left: 14px; padding: 14px 16px; border-radius: 14px; font-size: 13px; }
  .creation-steps { padding: 22px 20px 26px; }
  .creation-steps article { grid-template-columns: 44px 1fr; gap: 12px; padding: 24px 0; }
  .creation-steps b { width: 38px; height: 38px; border-radius: 12px; font-size: 12px; }
  .creation-steps h3 { font-size: 22px; }
  .creation-steps p { font-size: 15px; line-height: 1.75; }
  .creation-outcomes { grid-template-columns: 1fr; border-radius: 24px; }
  .creation-outcomes figure { min-height: 400px; }
  .creation-outcomes figcaption { inset: auto 14px 14px; padding: 14px 16px; border-radius: 14px; }
  .creation-outcomes > div { grid-template-columns: 1fr 1fr; gap: 8px; padding: 20px; }
  .creation-outcomes > div p { padding: 14px 10px; border-radius: 12px; font-size: 14px; text-align: center; }

  .thinking-section { grid-template-columns: 1fr; min-height: auto; }
  .thinking-photo { min-height: 430px; }
  .thinking-copy { padding: 62px 20px 74px; }
  .thinking-copy > p { margin: 26px 0; font-size: 16px; line-height: 1.8; }
  .thinking-path { gap: 8px; }
  .thinking-path b { padding: 14px 8px; border-radius: 12px; font-size: 14px; }

  .page-a .future-teachers .teacher-list { grid-template-columns: 1fr; gap: 14px; }
  .page-a .future-teachers .teacher-list article { min-height: 0; padding: 28px 24px; border-radius: 22px; }
  .school-name { font-size: 48px !important; }
  .page-a .future-teachers .teacher-list h3 { margin: 42px 0 12px; font-size: 26px; }
  .page-a .future-teachers .teacher-list p { font-size: 15px; line-height: 1.75; }
  .teacher-note { margin-top: 20px; }

  .future-closing { grid-template-columns: 1fr; gap: 36px; padding-bottom: 118px; }
  .future-closing h2 { color: var(--a-yellow); font-size: 43px; }
  .future-closing > div > p { margin: 24px 0; font-size: 17px; line-height: 1.8; }
  .future-closing .light-button { width: 100%; min-height: 52px; padding-inline: 14px; }
  .future-closing aside { padding: 22px; border-radius: 20px; }
  .future-closing .qr-placeholder { display: none; }
  .page-a .mobile-action { right: 10px; bottom: calc(8px + env(safe-area-inset-bottom)); left: 10px; min-height: 58px; border-radius: 17px; }
}

@media (max-width: 370px) {
  .future-hero h1 { font-size: 43px; }
  .future-why h2,
  .creation-world header h2,
  .thinking-copy h2,
  .future-teachers header h2 { font-size: 35px; }
  .future-closing h2 { font-size: 39px; }
  .page-a .mobile-action strong { font-size: 11px; }
}

/* Direction A v4: focused four-section course page */
.page-a {
  --focus-blue: #2457d6;
  --focus-navy: #101b33;
  --focus-copy: #536078;
  --focus-line: #dfe3ea;
  color: var(--focus-navy);
  background: #fff;
}
.page-a .site-header {
  height: 68px;
  padding-inline: clamp(24px, 5vw, 72px);
  border-bottom: 1px solid var(--focus-line);
  background: rgba(255,255,255,.96);
}
.page-a .brand-mark { border-radius: 9px; background: var(--focus-blue); transform: none; }
.page-a .nav-cta,
.page-a .primary-button,
.page-a .light-button { border-radius: 8px; }
.page-a .nav-cta,
.page-a .primary-button { background: var(--focus-blue); box-shadow: none; }
.page-a .desktop-nav { color: #5c6678; }

.focus-hero {
  display: grid;
  min-height: calc(100dvh - 68px);
  grid-template-columns: 1fr 1fr;
  background: #fff;
}
.focus-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 70px clamp(38px, 6.5vw, 104px);
}
.focus-hero-copy > p,
.outcomes-section header > p,
.compact-teachers header > p,
.focus-closing > div > p {
  margin: 0 0 18px;
  color: var(--focus-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .06em;
}
.focus-hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(58px, 6vw, 86px);
  line-height: 1.02;
  letter-spacing: -.06em;
}
.focus-intro { max-width: 620px; margin: 30px 0; }
.focus-intro strong,
.focus-intro span { display: block; }
.focus-intro strong { margin-bottom: 12px; font-size: 20px; line-height: 1.55; }
.focus-intro span { color: var(--focus-copy); font-size: 16px; line-height: 1.8; }
.focus-hero .primary-button { align-self: flex-start; }
.focus-hero figure { min-height: 620px; margin: 0; overflow: hidden; }
.focus-hero figure img { height: 100%; object-fit: cover; object-position: 55% center; }

.outcomes-section { padding: 100px clamp(24px, 6vw, 96px); background: #f4f5f7; }
.outcomes-section > header { display: grid; max-width: 1240px; grid-template-columns: minmax(0, 1.28fr) minmax(280px, .72fr); gap: clamp(42px, 8vw, 132px); align-items: end; margin: 0 auto 48px; }
.outcomes-section h2,
.compact-teachers h2,
.focus-closing h2 { margin: 0; font-size: clamp(40px, 4.5vw, 62px); line-height: 1.1; letter-spacing: -.05em; }
.outcomes-section header > span { color: var(--focus-copy); font-size: 16px; line-height: 1.8; }
.outcome-grid { display: grid; max-width: 1240px; grid-template-columns: repeat(4,1fr); margin: 0 auto; border-top: 1px solid var(--focus-navy); border-bottom: 1px solid var(--focus-navy); }
.outcome-grid article { min-height: 210px; padding: 26px 24px; }
.outcome-grid article + article { border-left: 1px solid #cfd4dd; }
.outcome-grid b { color: var(--focus-blue); font-size: 12px; }
.outcome-grid h3 { margin: 42px 0 12px; font-size: 25px; }
.outcome-grid p { margin: 0; color: var(--focus-copy); line-height: 1.7; }
.outcomes-media { display: grid; max-width: 1240px; height: 410px; grid-template-columns: .75fr 1.25fr .7fr; margin: 34px auto 0; overflow: hidden; background: var(--focus-navy); }
.outcomes-media img { height: 100%; object-fit: cover; }
.outcomes-media > div { display: flex; flex-direction: column; justify-content: flex-end; padding: 32px; color: #fff; }
.outcomes-media strong { font-size: 25px; }
.outcomes-media p { margin: 12px 0 0; color: #bdc7d8; line-height: 1.7; }
.outcomes-section > .asset-note { max-width: 1240px; margin: 14px auto 0; }

.projects-section { padding: 108px clamp(24px, 6vw, 96px); background: #fff; }
.projects-section > header { display: grid; max-width: 1240px; grid-template-columns: minmax(0, 1.28fr) minmax(280px, .72fr); gap: clamp(42px, 8vw, 132px); margin: 0 auto 52px; align-items: end; }
.projects-section h2 { margin: 0; font-size: clamp(40px, 4.5vw, 62px); line-height: 1.1; letter-spacing: -.04em; }
.projects-section > header p { max-width: 430px; margin: 0; color: var(--focus-copy); line-height: 1.8; }
.project-layout { max-width: 1240px; margin: 0 auto; }
.project-card { display: block; overflow: hidden; color: inherit; text-decoration: none; }
.project-card:focus-visible { outline: 3px solid var(--focus-blue); outline-offset: 5px; }
.project-card strong { display: inline-flex; margin-top: 24px; padding-bottom: 4px; border-bottom: 1px solid currentColor; font-size: 14px; transition: color .2s ease, border-color .2s ease; }
.project-card:hover strong { color: var(--focus-blue); }
.ip-project { display: grid; grid-template-columns: minmax(300px, .78fr) minmax(0, 1.22fr); min-height: 500px; background: #e8eef8; }
.project-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(34px, 4.5vw, 58px); }
.project-card span { display: block; margin-bottom: 18px; color: var(--focus-blue); font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.project-card h3 { margin: 0; font-size: clamp(32px, 3.2vw, 45px); line-height: 1.1; letter-spacing: -.04em; }
.project-card p { margin: 22px 0 0; color: var(--focus-copy); line-height: 1.8; }
.character-gallery { display: grid; min-height: 500px; grid-template-columns: repeat(5, minmax(0, 1fr)); background: #d4e1f5; }
.character-gallery img { width: 100%; height: 100%; min-height: 0; object-fit: cover; object-position: center; transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.character-gallery img + img { border-left: 1px solid rgba(255,255,255,.6); }
.ip-project:hover .character-gallery img { transform: scale(1.04); }
.project-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 22px; }
.project-pair .project-card { background: #f5f6f8; }
.project-pair figure { position: relative; height: 230px; margin: 0; overflow: hidden; background: #dce3ef; }
.project-pair figure::after { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, transparent 50%, rgba(15,27,51,.16)); }
.project-pair figure > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s cubic-bezier(.2,.8,.2,1); }
.project-pair .project-card:hover figure > img { transform: scale(1.04); }
.project-pair figcaption { position: absolute; z-index: 2; right: 12px; bottom: 12px; padding: 6px 8px; color: #fff; background: rgba(16,27,51,.78); font-size: 10px; }
.project-pair .project-card > div { padding: 30px 32px 34px; }
.project-pair h3 { font-size: 28px; }
.project-pair p { margin-top: 14px; font-size: 14px; line-height: 1.7; }
.project-pair strong { margin-top: 18px; font-size: 12px; }
.history-project { background: #edf1f8 !important; }
.joy-project { background: #fbf4ee !important; }
.joy-project figure { background: #e8ddcf; }
.joy-project .joy-photo { object-position: center 42%; }
.joy-project .joy-screen { inset: 20px 34px 0 auto; width: auto; height: calc(100% - 20px); max-width: 46%; object-fit: contain; object-position: right bottom; filter: drop-shadow(-10px 8px 16px rgba(54,36,22,.24)); }

.compact-teachers { padding: 96px clamp(24px, 6vw, 96px); background: #fff; }
.compact-teachers > header { display: grid; max-width: 1240px; grid-template-columns: .35fr 1fr; gap: 42px; margin: 0 auto 44px; }
.compact-teachers h2 { max-width: 760px; }
.teacher-rows { max-width: 1240px; margin: 0 auto; border-top: 1px solid var(--focus-navy); }
.teacher-rows article { display: grid; grid-template-columns: .65fr 1.35fr; gap: 60px; padding: 34px 0; border-bottom: 1px solid var(--focus-line); }
.teacher-id strong,
.teacher-id span { display: block; }
.teacher-id strong { margin-bottom: 12px; color: var(--focus-blue); font-size: 31px; letter-spacing: -.035em; }
.teacher-id span { font-size: 18px; font-weight: 800; }
.teacher-rows h3 { margin: 2px 0 11px; font-size: 22px; }
.teacher-rows p { max-width: 780px; margin: 0; color: var(--focus-copy); line-height: 1.75; }
.compact-teachers > small { display: block; max-width: 1240px; margin: 20px auto 0; color: #7d8799; line-height: 1.65; }

.focus-closing { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(50px, 8vw, 120px); align-items: center; padding: 82px clamp(24px, 6vw, 96px); color: #fff; background: var(--focus-navy); }
.focus-closing > div > p { color: #89a8ff; }
.focus-closing h2 { max-width: 780px; }
.focus-closing aside { padding-left: clamp(0px, 5vw, 70px); border-left: 1px solid rgba(255,255,255,.2); }
.focus-closing aside strong,
.focus-closing aside span { display: block; }
.focus-closing aside strong { font-size: 22px; }
.focus-closing aside span { margin: 14px 0 22px; color: #bec9dc; line-height: 1.7; }
.focus-closing .light-button { margin: 0; color: var(--focus-navy); background: #fff; }

@media (max-width: 900px) {
  .page-a .site-header { height: 58px; padding: 0 14px; }
  .page-a .brand { gap: 8px; font-size: 12px; }
  .page-a .brand small { font-size: 8px; }
  .page-a .brand-mark { width: 31px; height: 31px; }
  .page-a .site-header .nav-cta { width: auto; min-width: 78px; min-height: 38px; padding: 0 11px; font-size: 0; }
  .page-a .site-header .nav-cta::after { content: "联系我们"; font-size: 12px; }

  .focus-hero { display: flex; min-height: auto; flex-direction: column; }
  .focus-hero-copy { order: 1; padding: 40px 20px 34px; }
  .focus-hero-copy > p { margin-bottom: 13px; font-size: 11px; }
  .focus-hero h1 { font-size: 44px; line-height: 1.05; }
  .focus-intro { margin: 22px 0; }
  .focus-intro strong { margin-bottom: 9px; font-size: 17px; line-height: 1.5; }
  .focus-intro span { font-size: 14px; line-height: 1.7; }
  .focus-hero .primary-button { width: 100%; min-height: 50px; }
  .focus-hero figure { order: 2; min-height: 290px; height: 38vh; }
  .focus-hero figure img { object-position: 57% center; }

  .outcomes-section,
  .compact-teachers { padding: 62px 20px; }
  .outcomes-section > header,
  .compact-teachers > header { display: block; margin-bottom: 30px; }
  .outcomes-section header > p,
  .compact-teachers header > p { margin-bottom: 12px; font-size: 11px; }
  .outcomes-section h2,
  .compact-teachers h2,
  .focus-closing h2 { font-size: 34px; line-height: 1.13; }
  .outcomes-section header > span { display: block; margin-top: 16px; font-size: 14px; line-height: 1.7; }
  .outcome-grid { grid-template-columns: 1fr 1fr; }
  .outcome-grid article { min-height: 170px; padding: 20px 16px; }
  .outcome-grid article + article { border-left: 0; }
  .outcome-grid article:nth-child(even) { border-left: 1px solid #cfd4dd; }
  .outcome-grid article:nth-child(n+3) { border-top: 1px solid #cfd4dd; }
  .outcome-grid h3 { margin: 28px 0 8px; font-size: 21px; }
  .outcome-grid p { font-size: 13px; line-height: 1.6; }
  .outcomes-media { height: auto; grid-template-columns: 1fr 1fr; margin-top: 24px; }
  .outcomes-media img { height: 240px; }
  .outcomes-media > div { grid-column: 1 / -1; padding: 22px; }
  .outcomes-media strong { font-size: 20px; }
  .outcomes-media p { font-size: 14px; }

  .projects-section { padding: 76px 20px; }
  .projects-section > header { display: block; margin-bottom: 32px; }
  .projects-section h2 { font-size: 34px; line-height: 1.13; }
  .projects-section > header p { margin-top: 16px; font-size: 14px; line-height: 1.7; }
  .project-layout { grid-template-columns: 1fr; gap: 14px; }
  .ip-project { min-height: auto; grid-template-columns: 1fr; }
  .project-copy { min-height: 340px; padding: 30px 24px; }
  .project-card span { margin-bottom: 12px; font-size: 11px; }
  .project-card h3 { font-size: 31px; }
  .project-card p { margin-top: 16px; font-size: 14px; line-height: 1.72; }
  .project-card strong { margin-top: 20px; }
  .character-gallery { min-height: 290px; }
  .ip-project:hover .character-gallery img { transform: none; }
  .project-pair { grid-template-columns: 1fr; gap: 14px; margin-top: 14px; }
  .project-pair figure { height: 250px; }
  .project-pair .project-card > div { padding: 25px 20px; }
  .project-pair h3 { font-size: 24px; }
  .project-pair p { margin-top: 12px; font-size: 13px; line-height: 1.65; }
  .project-pair strong { margin-top: 16px; }

  .teacher-rows article { grid-template-columns: 1fr; gap: 20px; padding: 26px 0; }
  .teacher-id { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
  .teacher-id strong { margin: 0; font-size: 29px; }
  .teacher-id span { font-size: 16px; }
  .teacher-rows h3 { font-size: 19px; }
  .teacher-rows p { font-size: 14px; line-height: 1.7; }
  .compact-teachers > small { font-size: 11px; }

  .focus-closing { grid-template-columns: 1fr; gap: 34px; padding: 62px 20px; }
  .focus-closing > div > p { margin-bottom: 12px; font-size: 11px; }
  .focus-closing aside { padding: 26px 0 0; border-top: 1px solid rgba(255,255,255,.2); border-left: 0; }
  .focus-closing aside strong { font-size: 19px; }
  .focus-closing aside span { font-size: 14px; }
  .focus-closing .light-button { width: 100%; min-height: 50px; }
}

@media (max-width: 370px) {
  .focus-hero h1 { font-size: 40px; }
  .outcomes-section h2,
  .compact-teachers h2,
  .focus-closing h2 { font-size: 31px; }
}