html { scroll-behavior: smooth; }
body { margin: 0; }
button, input, select, textarea { font: inherit; }
img { max-width: 100%; }

.page {
  --navy: #102a43;
  --navy-deep: #071b2d;
  --teal: #2ec4c7;
  --teal-dark: #168b90;
  --teal-soft: #dff5f3;
  --orange: #ff7a45;
  --cream: #f7f4ed;
  --white: #fff;
  --text: #173047;
  --muted: #607382;
  min-height: 100vh;
  overflow: hidden;
  background: var(--cream);
  color: var(--text);
  font-family: "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", sans-serif;
}

.page * { box-sizing: border-box; }
.page main { width: 100%; margin: 0; padding: 0; }
.page h2 { margin: 0; color: var(--navy); font-size: clamp(2rem, 4vw, 3.55rem); font-weight: 820; letter-spacing: -.045em; line-height: 1.16; }

.header {
  display: grid;
  width: min(1180px, calc(100% - 48px));
  grid-template-columns: 1fr auto;
  align-items: center;
  margin: 0 auto;
  padding: 20px 0;
}

.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--navy); text-decoration: none; }
.brandMark { display: grid; width: 40px; height: 40px; place-items: center; border-radius: 50%; background: var(--navy); color: var(--teal); font-family: Georgia, serif; font-size: 1.25rem; font-weight: 700; }
.brand > span:last-child { display: grid; line-height: 1.05; }
.brand strong { font-size: 1.05rem; letter-spacing: .02em; }
.brand small { margin-top: 5px; color: var(--muted); font-size: .68rem; font-weight: 650; letter-spacing: .12em; }
.nav { display: flex; gap: 30px; }
.nav a { color: #536878; font-size: .82rem; font-weight: 700; text-decoration: none; }
.nav a:hover { color: var(--teal-dark); }

.headerCta, .primaryCta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--orange);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 24px rgb(255 122 69 / 20%);
  transition: transform .18s ease, box-shadow .18s ease;
}
.headerCta:hover, .primaryCta:hover { transform: translateY(-2px); box-shadow: 0 13px 28px rgb(255 122 69 / 28%); }
.headerCta:focus-visible, .primaryCta:focus-visible, .bookingForm button:focus-visible, .faqs summary:focus-visible, .nav a:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
.headerCta { justify-self: end; padding: 12px 20px; font-size: .9rem; }
.sectionCta { display: inline-flex; gap: 28px; align-items: center; justify-content: center; margin-top: 28px; border-radius: 6px; background: var(--orange); padding: 15px 21px; color: #fff; font-size: .84rem; font-weight: 820; text-decoration: none; box-shadow: 0 10px 24px rgb(255 122 69 / 20%); transition: transform .18s ease, box-shadow .18s ease; }
.sectionCta:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 13px 28px rgb(255 122 69 / 28%); }
.sectionCta:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.sectionCtaRow { width: min(1180px, 100%); margin: 36px auto 0; text-align: center; }

.hero { width: 100%; padding: clamp(70px, 8vw, 112px) 24px clamp(62px, 8vw, 100px); background: #050505; }
.heroInner { display: grid; width: min(1320px, 100%); grid-template-columns: .92fr 1.08fr; gap: clamp(40px, 5vw, 68px); align-items: stretch; margin: 0 auto; }
.heroCopy { align-self: center; max-width: 690px; }
.hero h1 { margin: 0 0 26px; color: #fff; font-size: clamp(3rem, 3.7vw, 4.15rem); font-weight: 840; letter-spacing: -.065em; line-height: 1.08; }
.hero h1 span { display: block; white-space: nowrap; }
.heroLead { max-width: 650px; margin: 0 0 32px; color: #c7cbd0; font-size: 1.12rem; line-height: 1.85; }
.primaryCta { gap: 32px; padding: 17px 23px; }
.primaryCta span { font-size: 1.25rem; }
.heroVisual { position: relative; width: 100%; min-height: 0; overflow: hidden; border-radius: 8px; }
.heroVisual img { position: absolute; top: 0; right: 0; display: block; width: auto; max-width: none; height: 100%; }

.positioningSection { padding: clamp(90px, 11vw, 150px) 24px; background: var(--cream); }
.positioningInner { width: min(1050px, 100%); margin: 0 auto; text-align: center; }
.positioningInner h2 { max-width: 1000px; margin: 0 auto; color: var(--navy); font-size: clamp(2.5rem, 5.2vw, 5.1rem); line-height: 1.08; }
.positioningCopy { display: grid; max-width: 820px; grid-template-columns: 1fr; gap: 24px; margin: 55px auto 0; border-top: 1px solid #d3dcda; padding-top: 36px; text-align: left; }
.positioningCopy p { margin: 0; color: #536979; font-size: 1rem; line-height: 1.9; }

.valueSection { background: #fff; }
.valueIntro { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: clamp(90px, 10vw, 130px) 0 70px; }
.valueIntro h2 { max-width: 900px; }
.valueIntroCopy { display: grid; max-width: 820px; grid-template-columns: 1fr; gap: 24px; margin-top: 42px; }
.valueIntroCopy p { margin: 0; color: #536979; font-size: 1rem; line-height: 1.9; }
.valueItem { display: grid; width: 100%; grid-template-columns: minmax(24px, 1fr) minmax(0, 520px) minmax(0, 590px) minmax(24px, 1fr); gap: clamp(32px, 5vw, 70px); align-items: center; margin: 0; border-top: 1px solid #d7dedc; padding: clamp(82px, 9vw, 120px) 0; }
.valueItem:nth-of-type(1) { background: var(--cream); }
.valueItem:nth-of-type(2) { background: var(--navy); }
.valueItem:nth-of-type(4) { background: var(--cream); }
.valueItem .valueMedia { grid-column: 2; }
.valueItem .valueCopy { grid-column: 3; }
.valueItem:nth-of-type(2) .valueCopy, .valueItem:nth-of-type(4) .valueCopy { grid-column: 2; grid-row: 1; }
.valueItem:nth-of-type(2) .valueMedia, .valueItem:nth-of-type(4) .valueMedia { grid-column: 3; grid-row: 1; }
.valueItem:nth-of-type(2) h2 { color: #fff; }
.valueItem:nth-of-type(2) p { color: #b9c9d4; }
.valueMedia { overflow: hidden; border-radius: 8px; box-shadow: 0 24px 60px rgb(16 42 67 / 14%); }
.valueMedia img { display: block; width: 100%; height: auto; }
.valueNumber { display: block; margin-bottom: 24px; color: var(--teal-dark); font-family: ui-monospace, monospace; font-size: .78rem; font-weight: 850; letter-spacing: .1em; }
.valueItem h2 { max-width: 900px; font-size: clamp(2.15rem, 4.1vw, 3.65rem); }
.valueItem p { max-width: 850px; margin: 28px 0 0; color: #526979; font-size: clamp(1rem, 1.4vw, 1.12rem); line-height: 1.95; }
.processSection { padding: clamp(92px, 10vw, 135px) 24px; background: var(--cream); }
.processHeading { display: grid; width: min(1180px, 100%); grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 7vw, 95px); align-items: end; margin: 0 auto 62px; }
.processHeading > p:last-child { margin: 0 0 5px; color: #5b6f7d; font-size: 1rem; line-height: 1.85; }
.processGrid { display: grid; width: min(1180px, 100%); grid-template-columns: repeat(4, 1fr); margin: 0 auto; padding: 0; list-style: none; counter-reset: none; }
.processGrid li { min-height: 250px; border-top: 3px solid var(--teal); border-right: 1px solid #d3dcda; background: #fff; padding: 28px 25px; }
.processGrid li:last-child { border-right: 0; }
.processGrid span { color: var(--teal-dark); font-family: ui-monospace, monospace; font-size: .72rem; font-weight: 850; }
.processGrid h3 { margin: 48px 0 14px; color: var(--navy); font-size: 1.18rem; line-height: 1.35; }
.processGrid p { margin: 0; color: #617482; font-size: .86rem; line-height: 1.75; }

.tutorSection { padding: clamp(92px, 10vw, 135px) 24px; background: #fff; }
.tutorHeading { width: min(1180px, 100%); margin: 0 auto clamp(48px, 6vw, 72px); }
.tutorHeading h2 { font-size: clamp(2.2rem, 4.2vw, 3.7rem); }
.tutorGrid { display: grid; width: min(1180px, 100%); grid-template-columns: 1fr 1fr; gap: 20px; margin: 0 auto; }
.tutorProfile { border-top: 4px solid var(--teal); background: var(--cream); padding: clamp(30px, 4vw, 46px); }
.tutorIdentity { margin-bottom: 24px; border-bottom: 1px solid #d7dedc; padding-bottom: 24px; }
.tutorIdentity p { margin: 0 0 9px; color: var(--teal-dark); font-size: .77rem; font-weight: 800; letter-spacing: .08em; }
.tutorIdentity h3 { margin: 0; color: var(--navy); font-size: clamp(1.55rem, 2.5vw, 2.15rem); letter-spacing: -.03em; line-height: 1.25; }
.tutorSummary { min-height: 78px; margin: 0 0 26px; color: #455e70; font-size: .94rem; line-height: 1.75; }
.tutorProfile ul { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.tutorProfile li { position: relative; padding-left: 22px; color: #526979; font-size: .92rem; line-height: 1.7; }
.tutorProfile li::before { position: absolute; top: .69em; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--orange); content: ""; }

.proofSection { display: grid; width: 100%; grid-template-columns: minmax(0, 1180px); justify-content: center; gap: 32px; margin: 0; padding: 70px max(24px, calc((100% - 1180px) / 2)) 80px; background: #fff; }
.proofHeading h2 { font-size: clamp(1.7rem, 2.8vw, 2.55rem); }
.proofCtaRow { text-align: center; }
.proofCtaRow .sectionCta { margin-top: 0; }
.schoolList { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.schoolList span { border-top: 1px solid #d7dedc; padding: 13px 12px 13px 0; color: #526979; font-size: .88rem; font-weight: 650; line-height: 1.4; }

.videoSection { padding: clamp(92px, 10vw, 135px) 24px; background: var(--navy-deep); }
.videoHeading { display: grid; width: min(1180px, 100%); grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: end; margin: 0 auto 58px; }
.videoHeading h2 { max-width: 720px; color: #fff; }
.videoHeading > p { margin: 0 0 6px; color: #aebfca; line-height: 1.8; }
.videoGrid { display: grid; width: min(1180px, 100%); grid-template-columns: 1fr 1fr; gap: 26px 20px; margin: 0 auto; }
.videoCard { overflow: hidden; border: 1px solid #264259; background: #0c2438; }
.videoFrame { position: relative; aspect-ratio: 16 / 9; background: #000; }
.videoFrame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.videoMeta { padding: 20px 22px 23px; }
.videoMeta p { margin: 0 0 7px; color: var(--teal); font-size: .72rem; font-weight: 800; letter-spacing: .07em; }
.videoMeta h3 { margin: 0; color: #fff; font-size: 1.1rem; }

.fitSection { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(55px, 8vw, 105px); padding: clamp(92px, 10vw, 135px) max(24px, calc((100% - 1180px) / 2)); background: var(--cream); }
.fitSection ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; margin: 0; padding: 0; list-style: none; }
.fitSection li { position: relative; border-top: 1px solid #d5ddda; padding: 18px 5px 18px 26px; color: #526979; font-size: .9rem; line-height: 1.65; }
.fitSection li::before { position: absolute; top: 22px; left: 2px; color: var(--teal-dark); content: "✓"; font-weight: 900; }

.faqSection { padding: 105px 24px; background: #fff; }
.centerHeading { max-width: 720px; margin: 0 auto 46px; text-align: center; }
.faqs { max-width: 820px; margin: 0 auto; border-top: 1px solid #cdd7dc; }
.faqs details { border-bottom: 1px solid #cdd7dc; }
.faqs summary { position: relative; padding: 22px 42px 22px 0; color: var(--navy); cursor: pointer; font-weight: 760; list-style: none; }
.faqs summary::-webkit-details-marker { display: none; }
.faqs summary::after { position: absolute; top: 19px; right: 5px; color: var(--teal-dark); content: "+"; font-size: 1.4rem; }
.faqs details[open] summary::after { content: "−"; }
.faqs details p { margin: 0; padding: 0 40px 22px 0; color: var(--muted); font-size: .9rem; line-height: 1.75; }

.bookingSection { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(48px, 8vw, 110px); padding: 110px max(24px, calc((100% - 1080px) / 2)); background: var(--navy-deep); color: #fff; }
.bookingSection h2 { color: #fff; }
.bookingCopy > p { margin: 22px 0; color: #afc2d0; line-height: 1.8; }
.bookingCopy ul { display: grid; gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; }
.bookingCopy li { color: #d7e3e9; font-size: .87rem; }
.bookingCopy li::before { margin-right: 10px; color: var(--teal); content: "✓"; font-weight: 900; }
.bookingForm { display: grid; gap: 17px; border-radius: 8px; background: #fff; padding: clamp(25px, 4vw, 40px); color: var(--navy); box-shadow: 0 24px 60px rgb(0 0 0 / 20%); }
.bookingForm label { display: grid; gap: 7px; font-size: .77rem; font-weight: 750; }
.bookingForm input, .bookingForm select, .bookingForm textarea { width: 100%; border: 1px solid #cdd8dd; border-radius: 5px; background: #fff; padding: 12px 13px; color: var(--navy); font: inherit; font-size: .87rem; }
.bookingForm input:focus, .bookingForm select:focus, .bookingForm textarea:focus { border-color: var(--teal-dark); outline: 2px solid rgb(46 196 199 / 20%); }
.bookingForm textarea { resize: vertical; }
.formRow { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.bookingForm button { display: flex; align-items: center; justify-content: space-between; border: 0; border-radius: 5px; background: var(--orange); padding: 15px 17px; color: #fff; cursor: pointer; font: inherit; font-size: .9rem; font-weight: 800; }
.bookingForm small { color: var(--muted); font-size: .68rem; line-height: 1.55; text-align: center; }

.footer { display: flex; align-items: center; justify-content: space-between; padding: 34px max(24px, calc((100% - 1180px) / 2)); background: #061522; color: #8fa6b5; }
.footer .brand { color: #fff; }
.footer .brandMark { background: var(--teal); color: var(--navy); }
.footer .brand small { color: #8fa6b5; }
.footer p { margin: 0; font-size: .78rem; }

@media (max-width: 1100px) {
  .nav { display: none; }
  .header { grid-template-columns: 1fr 1fr; }
  .heroInner { grid-template-columns: 1fr; }
  .heroCopy { max-width: 760px; margin: 0 auto; text-align: center; }
  .hero h1 span { white-space: normal; }
  .heroLead { margin-right: auto; margin-left: auto; }
  .heroVisual { position: static; max-width: 900px; margin: 0 auto; }
  .heroVisual img { position: static; width: 100%; max-width: 100%; height: auto; }
  .processGrid { grid-template-columns: 1fr 1fr; gap: 1px; }
  .processGrid li { border-right: 0; }
  .bookingSection { grid-template-columns: 1fr; }
  .valueItem { grid-template-columns: minmax(24px, 1fr) minmax(0, 430px) minmax(0, 500px) minmax(24px, 1fr); gap: 36px; }
}

@media (max-width: 760px) {
  .positioningCopy, .valueIntroCopy, .processHeading, .tutorGrid, .videoHeading, .fitSection { grid-template-columns: 1fr; }
  .valueItem { grid-template-columns: 24px minmax(0, 1fr) 24px; gap: 0; }
  .valueItem .valueCopy, .valueItem:nth-of-type(2) .valueCopy, .valueItem:nth-of-type(4) .valueCopy { grid-column: 2; grid-row: 1; }
  .valueItem .valueMedia, .valueItem:nth-of-type(2) .valueMedia, .valueItem:nth-of-type(4) .valueMedia { grid-column: 2; grid-row: 2; margin-top: 38px; }
  .proofSection { display: block; }
  .proofHeading { margin-bottom: 30px; }
  .videoGrid { grid-template-columns: 1fr; }
  .videoHeading { gap: 24px; }
  .fitSection { gap: 40px; }
  .tutorSummary { min-height: 0; }
}

@media (max-width: 560px) {
  .header { width: calc(100% - 32px); padding: 16px 0; }
  .headerCta { padding: 10px 13px; font-size: .76rem; }
  .brandMark { width: 35px; height: 35px; }
  .brand strong { font-size: .9rem; }
  .brand small { font-size: .58rem; }
  .hero { padding: 54px 16px 60px; }
  .hero h1 { font-size: 2.42rem; line-height: 1.1; }
  .heroLead { font-size: .98rem; }
  .primaryCta { width: 100%; }
  .positioningSection { padding: 78px 16px; }
  .positioningInner h2 { font-size: 2.55rem; }
  .positioningCopy { grid-template-columns: 1fr; gap: 24px; margin-top: 40px; }
  .valueIntro { width: 100%; padding: 76px 16px 45px; }
  .valueIntro h2 { font-size: 2.1rem; }
  .valueItem { grid-template-columns: 16px minmax(0, 1fr) 16px; padding: 72px 0; }
  .valueItem .valueMedia, .valueItem:nth-of-type(2) .valueMedia, .valueItem:nth-of-type(4) .valueMedia, .valueItem .valueCopy, .valueItem:nth-of-type(2) .valueCopy, .valueItem:nth-of-type(4) .valueCopy { grid-column: 2; }
  .valueItem h2 { font-size: 2.05rem; }
  .valueItem p { margin-top: 22px; font-size: .96rem; line-height: 1.85; }
  .processSection, .tutorSection, .videoSection { padding: 78px 16px; }
  .processHeading { margin-bottom: 40px; }
  .processHeading h2, .tutorHeading h2, .videoHeading h2, .fitSection h2 { font-size: 2.08rem; }
  .processGrid { grid-template-columns: 1fr; }
  .processGrid li { min-height: 0; padding: 26px 22px 30px; }
  .processGrid h3 { margin-top: 28px; }
  .tutorProfile { padding: 28px 22px; }
  .proofSection { width: 100%; padding: 66px 16px; }
  .schoolList { grid-template-columns: 1fr 1fr; }
  .schoolList span { padding-right: 8px; font-size: .79rem; }
  .videoMeta { padding: 17px 18px 20px; }
  .fitSection { padding: 78px 16px; }
  .fitSection ul { grid-template-columns: 1fr; }
  .faqSection, .bookingSection { padding: 82px 16px; }
  .formRow { grid-template-columns: 1fr; }
  .footer { align-items: flex-start; flex-direction: column; gap: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .headerCta, .primaryCta { transition: none; }
  .sectionCta { transition: none; }
}