/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: 'Barlow', 'Noto Sans TC', sans-serif;
  background: #0B1F3A;
  color: #F5F0E8;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── Variables ────────────────────────────────────────────────── */
:root {
  --navy:   #0B1F3A;
  --navy2:  #152D50;
  --navy3:  #0F2640;
  --gold:   #E8C547;
  --gold2:  #C9A93A;
  --white:  #F5F0E8;
  --slate:  #A8B8C8;
  --dim:    #2A4060;
  --green:  #4CAF80;
  --radius: 8px;
}

/* ── Utility ──────────────────────────────────────────────────── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.gold { color: var(--gold); }
.zh  { color: var(--slate); font-family: 'Noto Sans TC', sans-serif; font-size: 0.9em; display: block; margin-top: 4px; }
.section-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 10px;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn-primary, .btn-secondary {
  display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 14px; letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 30px; border-radius: 5px;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  cursor: pointer;
}
.btn-primary {
  background: var(--gold); color: var(--navy);
}
.btn-primary:hover { background: var(--gold2); transform: translateY(-1px); }
.btn-secondary {
  background: transparent; color: var(--white);
  border: 1.5px solid var(--dim);
}
.btn-secondary:hover { border-color: var(--slate); }
.full-width { display: block; text-align: center; }

/* ── Navigation ───────────────────────────────────────────────── */
nav {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 0 28px; height: 60px;
  background: var(--navy);
  border-bottom: 1px solid var(--dim);
  position: sticky; top: 0; z-index: 100;
}
.brand {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 20px;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--white); flex-shrink: 0;
}
.brand span { color: var(--gold); }
nav ul {
  display: flex; gap: 32px; list-style: none;
}
nav ul a {
  font-size: 13px; font-weight: 500; color: var(--slate);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
nav ul a:hover, nav ul a.active { color: var(--white); }
.nav-cta {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 7px 18px; border-radius: 4px;
  border: 1.5px solid var(--gold); color: var(--gold);
  transition: background 0.2s, color 0.2s;
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--gold); color: var(--navy); }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 28px 90px;
  max-width: 1080px;
  margin: 0 auto;
}
.hero-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 18px;
}
.hero h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: clamp(40px, 5.5vw, 64px);
  line-height: 1.05; letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 16px; color: var(--slate); line-height: 1.7;
  margin-bottom: 36px; max-width: 400px;
}
.hero-sub .zh-line {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 14px; color: var(--dim); display: block; margin-top: 6px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Mock viewer preview card */
.hero-card {
  border: 1px solid var(--dim);
  border-radius: 10px;
  overflow: hidden;
  background: var(--navy2);
}
.mock-viewer { width: 100%; }
.mv-bar {
  height: 4px; background: var(--gold); width: 100%;
}
.mv-inner { padding: 22px 24px; }
.mv-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 14px;
}
.mv-q {
  font-size: 15px; color: var(--white); line-height: 1.6;
  margin-bottom: 18px;
}
.mv-blank {
  display: inline-block;
  border-bottom: 2px solid var(--gold);
  min-width: 70px;
  color: var(--gold);
}
.mv-opts {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px; margin-bottom: 16px;
}
.mv-opt {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 5px;
  border: 1px solid var(--dim);
  font-size: 13px; color: var(--slate);
  background: var(--navy3);
}
.mv-opt.correct {
  border-color: var(--green);
  background: rgba(76,175,128,0.08);
  color: var(--white);
}
.mv-letter {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 15px; color: var(--gold);
  flex-shrink: 0;
}
.mv-letter.gold { color: var(--green); }
.mv-answer {
  border-left: 3px solid var(--gold);
  background: var(--navy);
  border-radius: 0 5px 5px 0;
  padding: 12px 14px;
}
.mv-answer-label {
  font-size: 9px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 4px;
}
.mv-answer-word {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 18px; color: var(--green);
  margin-bottom: 6px;
}
.mv-answer-en {
  font-size: 12px; color: var(--slate); line-height: 1.5; margin-bottom: 6px;
}
.mv-answer-zh {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 11px; color: #607080; line-height: 1.6;
  border-top: 1px solid var(--dim); padding-top: 6px;
}

/* ── Why Section ──────────────────────────────────────────────── */
.why {
  background: var(--navy2);
  border-top: 1px solid var(--dim);
  border-bottom: 1px solid var(--dim);
  padding: 70px 0;
}
.why-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.why-icon {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 36px; color: var(--dim);
  margin-bottom: 14px;
}
.why-item h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 20px;
  color: var(--gold); margin-bottom: 10px;
}
.why-item p { font-size: 14px; color: var(--slate); line-height: 1.7; }
.why-item p + p { margin-top: 6px; }

/* ── Videos Section ───────────────────────────────────────────── */
.videos { padding: 80px 0; }
.section-header { margin-bottom: 36px; }
.section-header h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 36px;
}
.video-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-bottom: 40px;
}
.video-card {
  background: var(--navy2);
  border: 1px solid var(--dim);
  border-radius: 8px; overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
  display: block;
}
.video-card:hover { border-color: var(--gold); transform: translateY(-2px); }
.video-thumb {
  background: var(--navy3);
  aspect-ratio: 16/9;
  display: flex; flex-direction: column;
  align-items: flex-start; justify-content: space-between;
  padding: 16px;
  position: relative;
  border-bottom: 1px solid var(--dim);
}
.video-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 32px; color: var(--gold);
  line-height: 1;
}
.video-part { font-size: 11px; color: var(--slate); letter-spacing: 0.06em; }
.video-play {
  position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%);
  font-size: 18px; color: var(--dim);
}
.video-card:hover .video-play { color: var(--gold); }
.video-info { padding: 14px 16px; }
.video-title { font-size: 13px; color: var(--white); font-weight: 500; margin-bottom: 4px; }
.video-meta { font-size: 11px; color: var(--slate); }
.video-cta { text-align: center; }

/* ── Practice Strip ───────────────────────────────────────────── */
.practice-strip {
  background: var(--navy3);
  border-top: 1px solid var(--dim);
  border-bottom: 1px solid var(--dim);
  padding: 48px 0;
}
.practice-strip-inner {
  display: flex; align-items: center;
  justify-content: space-between; gap: 40px;
  flex-wrap: wrap;
}
.practice-strip-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 24px; margin-bottom: 8px;
  color: var(--gold);
}
.practice-strip p { font-size: 14px; color: var(--slate); }


.dl-strip {
  background: var(--navy2);
  border-top: 1px solid var(--dim);
  border-bottom: 1px solid var(--dim);
  padding: 48px 0;
}
.dl-strip-inner {
  display: flex; align-items: center;
  justify-content: space-between; gap: 40px;
  flex-wrap: wrap;
}
.dl-strip-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 6px;
}
.dl-strip-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 24px; margin-bottom: 8px;
}
.dl-strip p { font-size: 14px; color: var(--slate); }

/* ── Page Hero ────────────────────────────────────────────────── */
.page-hero {
  padding: 64px 0 52px;
  border-bottom: 1px solid var(--dim);
}
.page-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 12px;
}
.page-hero h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05; margin-bottom: 14px;
}
.page-sub { font-size: 15px; color: var(--slate); max-width: 540px; }

/* ── About Page ───────────────────────────────────────────────── */
.about-body { padding: 60px 0 80px; }
.about-grid {
  display: grid; grid-template-columns: 1fr 360px;
  gap: 60px; align-items: start;
}
.about-block { margin-bottom: 44px; }
.about-block h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 13px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 16px;
  padding-bottom: 8px; border-bottom: 1px solid var(--dim);
}
.about-block p { font-size: 15px; color: var(--slate); margin-bottom: 14px; line-height: 1.75; }
.about-block p strong { color: var(--white); font-weight: 600; }
.about-contact { padding-top: 12px; border-top: 1px solid var(--dim); }
.about-contact .section-label { margin-bottom: 8px; }
.about-contact p { font-size: 14px; color: var(--slate); margin-bottom: 10px; }
.contact-email {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 17px; color: var(--gold);
  letter-spacing: 0.02em;
}
.contact-email:hover { text-decoration: underline; }
.about-card {
  background: var(--navy2); border: 1px solid var(--dim);
  border-radius: 8px; padding: 20px 22px; margin-bottom: 16px;
}
.about-card-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 14px;
}
.about-list { list-style: none; }
.about-list li {
  font-size: 13px; color: var(--slate);
  padding: 6px 0; border-bottom: 1px solid var(--dim);
  display: flex; align-items: center; gap: 8px;
}
.about-list li::before {
  content: '·'; color: var(--gold); font-size: 16px; flex-shrink: 0;
}
.about-list li:last-child { border-bottom: none; }
.about-list.muted li { color: #4A6080; }
.about-list.muted li::before { color: #2A4060; }

/* ── How It Works ─────────────────────────────────────────────── */
.how-it-works {
  background: var(--navy2);
  border-bottom: 1px solid var(--dim);
  padding: 48px 0;
}
.hiw-grid {
  display: flex; align-items: center; gap: 20px;
  flex-wrap: wrap;
}
.hiw-item {
  flex: 1; min-width: 200px;
  display: flex; gap: 14px; align-items: flex-start;
}
.hiw-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 28px; color: var(--gold);
  line-height: 1; flex-shrink: 0;
}
.hiw-text { font-size: 13px; color: var(--slate); line-height: 1.6; }
.hiw-text strong { color: var(--white); display: block; margin-bottom: 3px; }
.hiw-arrow { font-size: 22px; color: var(--dim); flex-shrink: 0; }

/* ── Bundle Card ──────────────────────────────────────────────── */
.dl-bundle-card {
  display: flex; align-items: center;
  justify-content: space-between; gap: 24px;
  background: var(--navy2);
  border: 1.5px solid var(--gold);
  border-radius: 8px; padding: 20px 24px;
  margin-bottom: 40px; flex-wrap: wrap;
}
.dl-bundle-badge {
  display: inline-block;
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--gold); color: var(--navy);
  padding: 3px 10px; border-radius: 3px;
  margin-bottom: 8px;
}
.dl-bundle-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 20px;
  color: var(--white); margin-bottom: 6px;
}
.dl-bundle-desc {
  font-size: 13px; color: var(--slate); line-height: 1.6;
}


.dl-section { padding: 60px 0 80px; }
.dl-test-header { margin-bottom: 32px; }
.dl-test-badge {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--dim); color: var(--gold);
  padding: 4px 12px; border-radius: 3px;
  margin-bottom: 10px;
}
.dl-test-header h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 28px; margin-bottom: 6px;
}
.dl-test-header p { font-size: 14px; color: var(--slate); }
.dl-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.dl-card {
  background: var(--navy2); border: 1px solid var(--dim);
  border-radius: 8px; overflow: hidden;
}
.dl-card-top {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--dim);
  background: var(--navy3);
}
.dl-ep {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 28px; color: var(--gold);
  line-height: 1; flex-shrink: 0;
}
.dl-card-title { font-size: 13px; font-weight: 600; color: var(--white); }
.dl-card-meta { font-size: 11px; color: var(--slate); margin-top: 2px; }
.dl-card-body { padding: 14px 18px; }
.dl-row {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--dim);
}
.dl-row:last-child { border-bottom: none; }
.dl-row-left {
  display: flex; align-items: center; gap: 8px;
}
.dl-badge {
  font-size: 9px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 2px 7px; border-radius: 3px;
  flex-shrink: 0;
}
.dl-badge.free { background: rgba(76,175,128,0.15); color: var(--green); }
.dl-badge.email { background: rgba(232,197,71,0.12); color: var(--gold); }
.dl-row-label { font-size: 12px; color: var(--slate); }
.dl-btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px; border-radius: 4px;
  background: var(--green); color: var(--navy);
  transition: opacity 0.2s; flex-shrink: 0;
}
.dl-btn:hover { opacity: 0.85; }
.dl-btn.email-btn { background: var(--gold); color: var(--navy); }
.dl-watch {
  display: block; text-align: center;
  font-size: 12px; color: var(--slate);
  padding: 10px 18px;
  border-top: 1px solid var(--dim);
  background: var(--navy3);
  transition: color 0.2s;
}
.dl-watch:hover { color: var(--gold); }

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  background: var(--navy3);
  border-top: 1px solid var(--dim);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex; justify-content: space-between;
  align-items: flex-start; gap: 40px;
  margin-bottom: 32px; flex-wrap: wrap;
}
.footer-brand {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 18px; letter-spacing: 0.04em;
  text-transform: uppercase; margin-bottom: 8px;
}
.footer-brand span { color: var(--gold); }
.footer-tagline { font-size: 13px; color: var(--slate); line-height: 1.6; }
.footer-links {
  display: flex; gap: 24px; flex-wrap: wrap; align-items: center;
}
.footer-links a {
  font-size: 13px; color: var(--slate);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--dim); padding-top: 20px;
  display: flex; flex-direction: column; gap: 6px;
}
.footer-bottom p { font-size: 12px; color: #4A6080; }
.footer-bottom a { color: var(--slate); }
.disclaimer { font-size: 11px !important; color: #364C64 !important; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 48px 20px 60px; }
  .why-grid { grid-template-columns: 1fr; gap: 32px; }
  .video-grid { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .hiw-arrow { display: none; }
  nav ul { display: none; }
  .footer-inner { flex-direction: column; }
}