html { scrollbar-gutter: stable; }
:root {
--gold: #8B6310; --gold-bright: #C8973A; --gold-light: #F3E4C2; --gold-deep: #5a3e0a;
--ink: #1C1C1C; --ink-soft: #333333; --ink-muted: #666666;
--white: #FFFFFF; --off-white: #F5F0E8; --border: rgba(139,99,16,0.18);
--card-bg: #F5F0E8; --nav-h: 60px;
--cream: #FBF5E7; --cream-soft: #F9F6F0; --warm-line: rgba(139,99,16,0.30);
/* difficulty ramp — easy→hard, light→dark */
--d1:#A07820; --d1-bg:#FDF4DC; --d2:#8B6310; --d2-bg:#F8EAC0;
--d3:#7A5510; --d3-bg:#F4E0A8; --d4:#5A3C08; --d4-bg:#EDD898;
}
* { margin:0; padding:0; box-sizing:border-box; scroll-behavior:smooth; }
a:visited { color: currentColor; }
body { background:#F5F0E8; color:var(--ink); font-family:'Noto Serif TC',serif; overflow-x:hidden; padding-top:var(--nav-h); }
/* NAV */
nav { position:fixed; top:0; left:0; right:0; height:var(--nav-h); background:rgba(17,17,17,0.97); backdrop-filter:blur(8px); display:flex; align-items:center; justify-content:space-between; padding:0 32px; z-index:999; border-bottom:1px solid rgba(200,151,58,0.2); }
.nav-logo { font-family:'Noto Serif TC',serif; font-size:15px; font-weight:900; letter-spacing:1px; cursor:pointer; flex-shrink:0; }
.nav-logo .logo-main { color:var(--white); }
.nav-logo .logo-accent { color:var(--gold-bright); }
.nav-logo .logo-dim { color:var(--gold-bright); font-weight:900; }
/* top-level nav items */
.nav-links { display:flex; gap:4px; list-style:none; align-items:center; }
.nav-links > li { position:relative; }
.nav-links > li > a {
font-family:'Noto Sans TC',sans-serif; font-size:12px; font-weight:500;
color:rgba(255,255,255,0.72); text-decoration:none; letter-spacing:0.5px;
transition:color 0.2s; white-space:nowrap; padding:6px 10px; display:block;
}
.nav-links > li > a:hover { color:var(--gold-bright); }
.nav-links > li > a.has-drop::after { content:'▾'; font-size:9px; margin-left:4px; opacity:0.5; }
/* dropdown panel */
.nav-drop {
display:none; position:absolute; top:calc(100% + 1px); left:0;
background:rgba(17,17,17,0.98); border:1px solid rgba(200,151,58,0.25);
border-top:2px solid var(--gold-bright); min-width:160px; z-index:1000;
padding:8px 0;
}
.nav-links > li:hover .nav-drop { display:block; }
.nav-drop a {
font-family:'Noto Sans TC',sans-serif; font-size:12px; font-weight:400;
color:rgba(255,255,255,0.65); text-decoration:none; display:block;
padding:9px 18px; white-space:nowrap; transition:all 0.15s; letter-spacing:0.3px;
}
.nav-drop a:hover { color:var(--gold-bright); background:rgba(200,151,58,0.08); padding-left:22px; }
.nav-drop-label {
font-family:'Noto Sans TC',sans-serif; font-size:9px; letter-spacing:3px;
text-transform:uppercase; color:rgba(200,151,58,0.5); font-weight:700;
padding:10px 18px 4px; display:block;
}
.nav-drop-divider { height:1px; background:rgba(255,255,255,0.06); margin:6px 0; }
.nav-cta { background:var(--gold-bright) !important; color:var(--ink) !important; font-weight:700 !important; padding:8px 18px !important; font-size:12px !important; }
.nav-cta:hover { background:#b07820 !important; color:var(--ink) !important; }
.hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:4px; }
.hamburger span { display:block; width:22px; height:2px; background:rgba(255,255,255,0.8); }
.nav-mobile-cta { display:none; }
@media(max-width:900px){ .nav-links{display:none;} .hamburger{display:flex;} nav{padding:0 20px;} .nav-mobile-cta{display:inline-block;background:var(--gold-bright);color:var(--ink);font-family:'Noto Sans TC',sans-serif;font-weight:900;font-size:11px;padding:7px 14px;letter-spacing:1px;text-decoration:none;cursor:pointer;border:none;white-space:nowrap;margin-right:10px;} }
/* SHARED */
.section-wrap { max-width:1080px; margin:0 auto; padding:96px 32px; }
.eyebrow { font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:4px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:14px; display:block; }
.section-heading { font-family:'Noto Serif TC',serif; font-size:clamp(30px,4.5vw,52px); font-weight:900; line-height:1.2; color:var(--ink); margin-bottom:56px; }
.section-heading-white { color:var(--ink); }
/* MODAL OVERLAY */
.modal-overlay { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,0.65); z-index:2000; align-items:center; justify-content:center; padding:20px; }
.modal-overlay.open { display:flex; }
.modal-box { background:var(--white); max-width:560px; width:100%; max-height:90vh; overflow-y:auto; position:relative; border:2px solid var(--ink); }
.modal-box.dark { background:var(--ink); color:var(--white); border-color:rgba(200,151,58,0.3); }
.modal-header { padding:32px 36px 24px; border-bottom:2px solid var(--border); display:flex; justify-content:space-between; align-items:flex-start; gap:16px; }
.modal-box.dark .modal-header { border-bottom-color:rgba(255,255,255,0.12); }
.modal-close { background:none; border:none; font-size:24px; cursor:pointer; color:var(--ink-muted); line-height:1; padding:0; flex-shrink:0; }
.modal-box.dark .modal-close { color:rgba(255,255,255,0.5); }
.modal-close:hover { color:var(--ink); }
.modal-box.dark .modal-close:hover { color:var(--white); }
.modal-title { font-family:'Noto Serif TC',serif; font-size:22px; font-weight:900; line-height:1.2; }
.modal-body { padding:28px 36px 36px; }
/* COMING SOON inside modal */
.coming-soon-wrap { text-align:center; padding:48px 24px; }
.coming-soon-icon { font-size:52px; margin-bottom:20px; display:block; }
.coming-soon-title { font-family:'Noto Serif TC',serif; font-size:24px; font-weight:900; margin-bottom:12px; }
.modal-box.dark .coming-soon-title { color:var(--white); }
.coming-soon-sub { font-family:'Noto Sans TC',sans-serif; font-size:15px; line-height:1.8; color:var(--ink-muted); }
.modal-box.dark .coming-soon-sub { color:rgba(255,255,255,0.5); }
.coming-soon-badge { display:inline-block; margin-top:20px; background:var(--gold-light); color:var(--gold); font-family:'Noto Sans TC',sans-serif; font-size:11px; font-weight:700; letter-spacing:3px; text-transform:uppercase; padding:8px 20px; border:1px solid var(--gold); }
/* CONTACT MODAL */
.contact-grid { display:grid; gap:0; border:1px solid var(--border); }
.contact-row { display:flex; align-items:center; gap:16px; padding:18px 20px; border-bottom:1px solid var(--border); font-family:'Noto Sans TC',sans-serif; font-size:15px; color:var(--ink-soft); }
.contact-row:last-child { border-bottom:none; }
.contact-icon { font-size:22px; flex-shrink:0; width:32px; text-align:center; }
.contact-label { font-size:11px; letter-spacing:2px; text-transform:uppercase; color:var(--gold); font-weight:700; display:block; margin-bottom:2px; }
.contact-val { font-size:15px; color:var(--ink-soft); }
.contact-link { color:var(--ink); text-decoration:none; font-weight:700; }
.contact-link:hover { color:var(--gold); text-decoration:underline; }
.contact-cta { margin-top:24px; width:100%; background:var(--gold-bright); color:var(--ink); font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:15px; padding:16px; border:none; cursor:pointer; letter-spacing:1px; transition:background 0.2s; }
.contact-cta:hover { background:#b07820; }
/* HERO */
#home { min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; position:relative; padding:80px 32px 100px; background:linear-gradient(180deg,#FBF5E7 0%,#F5F0E8 60%,#EFE3CB 100%); text-align:center; overflow:hidden; }
.hero-bg { font-family:'Sarabun',sans-serif; font-size:clamp(90px,20vw,220px); font-weight:800; color:rgba(139,99,16,0.05); position:absolute; top:50%; left:50%; transform:translate(-50%,-52%); white-space:nowrap; user-select:none; }
.badge { display:inline-block; border:1.5px solid var(--gold); color:var(--gold); font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:3px; text-transform:uppercase; padding:7px 20px; margin-bottom:32px; opacity:0; animation:fadeUp 0.5s 0.2s forwards; }
.hero-title { font-family:'Noto Serif TC',serif; font-size:clamp(44px,9vw,96px); font-weight:900; color:var(--ink); line-height:1.08; letter-spacing:-1px; margin-bottom:20px; opacity:0; animation:fadeUp 0.6s 0.35s forwards; }
.hero-title .accent { color:var(--gold); }
.hero-slogan { font-family:'Noto Sans TC',sans-serif; font-size:clamp(14px,1.8vw,18px); color:var(--ink-muted); letter-spacing:2px; margin-bottom:14px; opacity:0; animation:fadeUp 0.5s 0.5s forwards; }
.hero-slogan .slogan-accent { background:linear-gradient(90deg,var(--gold),#C8973A); -webkit-background-clip:text; background-clip:text; color:transparent; font-weight:700; letter-spacing:3px; }
.hero-sub { font-family:'Noto Sans TC',sans-serif; font-size:clamp(16px,2.2vw,20px); color:var(--ink-soft); line-height:1.85; max-width:480px; margin-bottom:48px; opacity:0; animation:fadeUp 0.6s 0.6s forwards; }
.hero-cta { background:var(--gold); color:#fff; font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:16px; padding:18px 52px; border:none; cursor:pointer; letter-spacing:1px; transition:all 0.25s; opacity:0; animation:fadeUp 0.6s 0.75s forwards; }
.hero-cta:hover { background:#7a5510; transform:translateY(-3px); box-shadow:0 10px 28px rgba(139,99,16,0.25); }
.scroll-hint { position:absolute; bottom:36px; left:50%; transform:translateX(-50%); display:flex; flex-direction:column; align-items:center; gap:8px; opacity:0; animation:fadeUp 0.5s 1.2s forwards; }
.scroll-hint span { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:3px; text-transform:uppercase; color:rgba(139,99,16,0.45); }
.scroll-hint .line { width:1px; height:40px; background:linear-gradient(to bottom,rgba(139,99,16,0.4),transparent); animation:pulse 2s infinite; }
/* PROBLEMS */
#problems { background:var(--off-white); border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); }
.problems-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:0; border:2px solid var(--ink); }
.problem-card { padding:32px 24px; border-right:2px solid var(--ink); background:var(--white); transition:background 0.25s; }
.problem-card:last-child { border-right:none; }
.problem-card:hover { background:var(--gold-light); }
.card-icon { font-size:32px; margin-bottom:10px; display:block; }
.card-cat { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:3px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:4px; }
.card-title { font-family:'Noto Serif TC',serif; font-size:17px; font-weight:900; color:var(--ink); margin-bottom:16px; line-height:1.3; border-bottom:2px solid var(--ink); padding-bottom:12px; }
.problem-list { list-style:none; }
.problem-list li { font-family:'Noto Sans TC',sans-serif; font-size:14px; line-height:1.65; color:var(--ink-soft); padding:8px 0; border-bottom:1px solid var(--border); display:flex; align-items:flex-start; gap:8px; }
.problem-list li:last-child { border-bottom:none; }
.problem-list li::before { content:'▸'; color:var(--gold); font-size:11px; flex-shrink:0; margin-top:3px; }
/* TEACHER */
#teacher { background:linear-gradient(180deg,#FBF5E7 0%,#F5F0E8 100%); text-align:center; border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); }
.answer-eyebrow { color:var(--gold); font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:4px; text-transform:uppercase; font-weight:700; margin-bottom:14px; display:block; }
.answer-quote { font-family:'Noto Serif TC',serif; font-size:clamp(30px,5.5vw,60px); font-weight:900; line-height:1.18; margin-bottom:28px; color:var(--ink); }
.answer-quote em { font-style:italic; color:var(--gold); }
.answer-body { font-family:'Noto Sans TC',sans-serif; font-size:18px; line-height:2.1; color:var(--ink-soft); max-width:580px; margin:0 auto 20px; }
.slogan-big { font-family:'Noto Serif TC',serif; font-size:clamp(16px,2.2vw,22px); color:var(--gold); font-weight:700; margin:28px auto 40px; max-width:620px; line-height:1.75; }
.slogan-big .zh { font-size:0.88em; color:var(--ink-muted); font-weight:400; display:block; margin-top:8px; font-family:'Noto Sans TC',sans-serif; }
.answer-cta { background:var(--gold); color:#fff; font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:16px; padding:18px 52px; border:none; cursor:pointer; letter-spacing:1px; transition:all 0.25s; display:inline-block; }
.answer-cta:hover { background:#7a5510; transform:translateY(-2px); }
/* STATS */
.stats-band { background:var(--gold-light); border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); padding:0 32px; }
.stats-inner { display:flex; justify-content:center; max-width:900px; margin:0 auto; border-left:2px solid var(--ink); border-right:2px solid var(--ink); }
.stat { text-align:center; padding:52px 40px; flex:1; border-right:2px solid var(--ink); }
.stat:last-child { border-right:none; }
.stat-num { font-family:'Noto Serif TC',serif; font-size:clamp(36px,5.5vw,64px); font-weight:900; color:var(--ink); line-height:1; margin-bottom:10px; }
.stat-label { font-family:'Noto Sans TC',sans-serif; font-size:12px; letter-spacing:2px; text-transform:uppercase; color:var(--ink-muted); font-weight:700; }
/* HOW */
#how { background:var(--white); border-bottom:3px solid var(--ink); }
.how-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:0; border:2px solid var(--ink); }
.how-card { padding:36px 28px; border-right:2px solid var(--ink); transition:background 0.25s; }
.how-card:last-child { border-right:none; }
.how-card:nth-child(even) { background:var(--card-bg); }
.how-card:hover { background:var(--gold-light); }
.how-num { font-family:'Playfair Display',serif; font-size:52px; font-weight:900; color:rgba(0,0,0,0.07); line-height:1; margin-bottom:-6px; }
.how-title { font-family:'Noto Serif TC',serif; font-size:18px; font-weight:900; color:var(--ink); margin-bottom:12px; border-bottom:2px solid var(--gold); padding-bottom:10px; }
.how-desc { font-family:'Noto Sans TC',sans-serif; font-size:14px; line-height:1.9; color:var(--ink-soft); }
/* PRICING */
#pricing { background:var(--off-white); border-bottom:3px solid var(--ink); }
.pricing-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:0; border:2px solid var(--ink); align-items:stretch; }
.plan-card { display:flex; flex-direction:column; padding:40px 32px; border-right:2px solid var(--ink); background:var(--white); position:relative; }
.plan-card:last-child { border-right:none; }
.plan-card.featured { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); color:var(--ink); }
.plan-card.pair-card { background:var(--card-bg); }
.plan-tag { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:3px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:6px; }
.plan-card.featured .plan-tag { color:var(--gold); }
.plan-name { font-family:'Noto Serif TC',serif; font-size:28px; font-weight:900; margin-bottom:4px; }
.plan-card.featured .plan-name { color:var(--gold-deep); }
.plan-price { font-family:'Playfair Display',serif; font-size:48px; font-weight:900; color:var(--gold); line-height:1; margin-bottom:0; }
.plan-card.featured .plan-price { color:var(--gold); }
.plan-unit { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-muted); margin-bottom:0; }
.plan-card.featured .plan-unit { color:var(--ink-muted); }
.plan-divider { height:2px; background:var(--border); margin-bottom:20px; }
.plan-card.featured .plan-divider { background:rgba(139,99,16,0.25); }
.plan-features { list-style:none; margin-bottom:24px; }
.plan-features li { font-family:'Noto Sans TC',sans-serif; font-size:14px; line-height:1.7; color:var(--ink-soft); padding:7px 0; border-bottom:1px solid var(--border); display:flex; gap:8px; align-items:flex-start; }
.plan-card.featured .plan-features li { color:var(--ink-soft); border-bottom-color:rgba(139,99,16,0.18); }
.plan-features li:last-child { border-bottom:none; }
.plan-features li::before { content:'✓'; color:var(--gold); font-weight:700; flex-shrink:0; }
.plan-card.featured .plan-features li::before { color:var(--gold); }
.plan-note { font-family:'Noto Sans TC',sans-serif; font-size:12px; color:var(--ink-muted); line-height:1.75; background:var(--off-white); padding:12px 14px; border-left:3px solid var(--gold); margin-bottom:20px; }
.plan-card.featured .plan-note { background:rgba(139,99,16,0.08); color:var(--ink-muted); border-left-color:var(--gold); }
.plan-courses { margin-bottom:24px; min-height:120px; }
.plan-courses-title { font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:2px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:10px; }
.plan-card.featured .plan-courses-title { color:var(--gold); }
.course-row { display:flex; justify-content:space-between; align-items:center; padding:9px 0; border-bottom:1px solid var(--border); font-family:'Noto Sans TC',sans-serif; font-size:14px; }
.plan-card.featured .course-row { border-bottom-color:rgba(139,99,16,0.18); color:var(--ink-soft); }
.course-row:last-child { border-bottom:none; }
.bonus { font-size:11px; color:var(--gold); font-weight:700; background:var(--gold-light); padding:2px 8px; }
.plan-card.featured .bonus { background:rgba(139,99,16,0.15); color:var(--gold-deep); }
.plan-payment { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-muted); line-height:1.75; margin-top:auto; padding-top:16px; border-top:1px solid var(--border); }
.plan-card.featured .plan-payment { color:var(--ink-muted); border-top-color:rgba(139,99,16,0.18); }
.free-trial-row { display:flex; justify-content:space-between; align-items:center; padding:11px 14px; background:var(--gold-light); border:1px solid var(--gold); margin-bottom:20px; }
.plan-card.featured .free-trial-row { background:rgba(139,99,16,0.12); border-color:rgba(139,99,16,0.4); }
.free-trial-label { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-soft); }
.plan-card.featured .free-trial-label { color:var(--ink-soft); }
.free-trial-val { font-family:'Noto Sans TC',sans-serif; font-size:13px; font-weight:900; color:var(--gold); }
.plan-card.featured .free-trial-val { color:var(--gold); }
.pair-price-row { display:flex; justify-content:space-between; align-items:baseline; padding:10px 0; border-bottom:1px solid var(--border); }
.pair-price-row:last-child { border-bottom:none; }
.pair-price-label { font-family:'Noto Sans TC',sans-serif; font-size:14px; color:var(--ink-soft); }
.pair-price-val { font-family:'Playfair Display',serif; font-size:26px; font-weight:900; color:var(--gold); }
.pair-price-unit { font-family:'Noto Sans TC',sans-serif; font-size:12px; color:var(--ink-muted); }
.plan-price-block { margin-top:auto; padding-top:20px; border-top:2px solid var(--border); }
.plan-cta { margin-top:16px; }
.plan-card.featured .plan-price-block { border-top-color:rgba(139,99,16,0.25); }
.plan-cta { width:100%; margin-top:16px; background:var(--gold-bright); color:var(--ink); font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:14px; padding:14px; border:none; cursor:pointer; letter-spacing:1px; transition:background 0.2s; }
.plan-cta:hover { background:#b07820; }
.plan-card.featured .plan-cta { background:var(--gold-bright); color:var(--ink); }
.plan-card.featured .plan-cta:hover { background:#7a5510; }
.pair-prices-inline { margin-bottom:4px; }
/* plan-payment and plan-price-block spacing */
/* AVAILABILITY BAND */
.avail-band { background:var(--gold-light); border-top:3px solid var(--gold); border-bottom:3px solid var(--gold); padding:10px 16px; display:flex; flex-direction:column; gap:8px; }
.avail-row { display:flex; align-items:center; justify-content:center; gap:10px; flex-wrap:nowrap; overflow:hidden; }
.avail-row + .avail-row { padding-top:8px; border-top:1px solid rgba(139,99,16,0.18); }
a.avail-row { text-decoration:none; cursor:pointer; transition:opacity 0.2s; }
a.avail-row:hover { opacity:0.78; }
@media(max-width:600px){ .avail-band { gap:6px; padding:8px 12px; } .avail-row + .avail-row { padding-top:6px; } .avail-text { font-size:11px; letter-spacing:0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; } .avail-cta { font-size:11px; padding:7px 12px; flex-shrink:0; } }
.avail-dot { width:10px; height:10px; background:#4CAF50; border-radius:50%; animation:blink 1.8s infinite; flex-shrink:0; }
@keyframes blink { 0%,100%{opacity:1;}50%{opacity:0.3;} }
.avail-text { font-family:'Noto Sans TC',sans-serif; font-size:14px; color:var(--ink); letter-spacing:1px; }
.avail-text strong { color:var(--gold); }
.avail-cta { background:var(--gold-bright); color:var(--ink); font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:12px; padding:8px 18px; border:none; cursor:pointer; letter-spacing:1px; white-space:nowrap; transition:background 0.2s; text-decoration:none; display:inline-block; flex-shrink:0; }
.avail-cta:hover { background:#b07820; }
/* QUIZ MODAL */
.quiz-wrap { padding:8px 0; }
.quiz-step { display:none; }
.quiz-step.active { display:block; }
.quiz-q-text { font-family:'Noto Serif TC',serif; font-size:18px; font-weight:900; color:var(--ink); margin-bottom:20px; line-height:1.5; }
.quiz-progress { display:flex; gap:6px; margin-bottom:28px; }
.quiz-prog-dot { width:8px; height:8px; border-radius:50%; background:var(--border); flex:1; height:4px; border-radius:2px; }
.quiz-prog-dot.done { background:var(--gold-bright); }
.quiz-options { display:grid; gap:10px; }
.quiz-opt { padding:14px 18px; border:2px solid var(--border); background:var(--white); font-family:'Noto Sans TC',sans-serif; font-size:14px; text-align:left; cursor:pointer; color:var(--ink-soft); transition:all 0.2s; line-height:1.5; }
.quiz-opt:hover { border-color:var(--gold-bright); background:var(--gold-light); color:var(--ink); }
.quiz-result { text-align:center; padding:20px 0; display:none; }
.quiz-result.active { display:block; }
.quiz-result-badge { display:inline-block; padding:6px 20px; font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:3px; font-weight:700; text-transform:uppercase; margin-bottom:16px; }
.quiz-result-title { font-family:'Noto Serif TC',serif; font-size:26px; font-weight:900; color:var(--ink); margin-bottom:12px; }
.quiz-result-desc { font-family:'Noto Sans TC',sans-serif; font-size:15px; color:var(--ink-soft); line-height:1.85; margin-bottom:24px; }
.quiz-restart { background:none; border:1.5px solid var(--border); font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-muted); padding:8px 18px; cursor:pointer; margin-right:10px; }
/* TEACHER STORY */
.teacher-story { background:var(--card-bg); border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); }
.teacher-story-inner { max-width:1080px; margin:0 auto; padding:96px 32px; display:grid; grid-template-columns:1fr 2fr; gap:64px; align-items:start; }
.teacher-photo-wrap { position:relative; }
.teacher-photo-placeholder { width:100%; aspect-ratio:3/4; background:var(--off-white); border:2px solid var(--ink); display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; }
.teacher-photo-img { width:100%; aspect-ratio:3/4; object-fit:cover; object-position:center top; border:2px solid var(--ink); display:block; }
.teacher-photo-placeholder span { font-size:48px; }
.teacher-photo-placeholder p { font-family:'Noto Sans TC',sans-serif; font-size:11px; letter-spacing:2px; color:var(--ink-muted); text-align:center; }
.teacher-photo-badge { position:absolute; bottom:-16px; right:-16px; background:var(--gold-bright); color:var(--ink); font-family:'Noto Sans TC',sans-serif; font-size:11px; font-weight:900; letter-spacing:1px; padding:10px 16px; border:2px solid var(--ink); }
.teacher-story-content { }
.teacher-story-eyebrow { font-family:'Noto Sans TC',sans-serif; font-size:16px; letter-spacing:3px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:14px; display:block; }
.teacher-story-title { font-family:'Noto Serif TC',serif; font-size:clamp(26px,3.5vw,40px); font-weight:900; color:var(--ink); line-height:1.2; margin-bottom:28px; }
.teacher-story-title em { color:var(--gold); font-style:normal; }
.teacher-facts { display:grid; grid-template-columns:1fr 1fr; gap:0; border:2px solid var(--ink); margin-bottom:28px; }
.teacher-fact { padding:20px 22px; border-right:2px solid var(--ink); border-bottom:2px solid var(--ink); }
.teacher-fact:nth-child(2n) { border-right:none; }
.teacher-fact:nth-last-child(-n+2) { border-bottom:none; }
.teacher-fact-label { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:2px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:4px; }
.teacher-fact-val { font-family:'Noto Serif TC',serif; font-size:16px; font-weight:900; color:var(--ink); line-height:1.4; }
.teacher-story-text { font-family:'Noto Sans TC',sans-serif; font-size:15px; line-height:2; color:var(--ink-soft); }
@media(max-width:780px){ .teacher-story-inner{grid-template-columns:1fr;gap:40px;} .teacher-photo-wrap{max-width:240px;} }
/* PROGRESS TIMELINE */
.progress-section { background:var(--off-white); border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); }
.progress-section .section-wrap { padding-bottom:80px; }
.progress-timeline { display:grid; grid-template-columns:repeat(4,1fr); gap:0; border:2px solid var(--ink); margin-top:48px; position:relative; background:var(--white); }
.prog-step { padding:32px 24px 28px; border-right:2px solid var(--ink); text-align:center; position:relative; z-index:1; }
.prog-step:last-child { border-right:none; }
.prog-circle { width:52px; height:52px; border-radius:50%; background:var(--gold); border:3px solid var(--gold); margin:0 auto 16px; display:flex; align-items:center; justify-content:center; font-family:'Playfair Display',serif; font-size:20px; font-weight:900; color:#fff; }
.prog-hours { font-family:'Noto Serif TC',serif; font-size:22px; font-weight:900; color:var(--gold); margin-bottom:6px; }
.prog-title { font-family:'Noto Sans TC',sans-serif; font-size:15px; font-weight:700; color:var(--ink); margin-bottom:10px; letter-spacing:0.5px; }
.prog-desc { font-family:'Noto Sans TC',sans-serif; font-size:14px; color:var(--ink-soft); line-height:1.85; }
@media(max-width:700px){ .progress-timeline{grid-template-columns:1fr 1fr;} .prog-step{border-bottom:2px solid var(--ink);} }
/* LESSON PREVIEW */
.lesson-preview { background:var(--white); border-bottom:3px solid var(--ink); }
.lesson-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:0; border:2px solid var(--ink); margin-top:48px; }
.lesson-card { padding:32px 28px; border-right:2px solid var(--ink); }
.lesson-card:last-child { border-right:none; }
.lesson-card-tag { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:3px; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:8px; }
.lesson-card-title { font-family:'Noto Serif TC',serif; font-size:17px; font-weight:900; color:var(--ink); margin-bottom:16px; padding-bottom:12px; border-bottom:2px solid var(--ink); }
.lesson-sample { background:var(--card-bg); padding:16px 18px; border-left:3px solid var(--gold-bright); margin-bottom:14px; }
.lesson-thai { font-family:'Sarabun',sans-serif; font-size:22px; font-weight:700; color:var(--ink); margin-bottom:4px; }
.lesson-phonetic { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--gold); font-weight:700; margin-bottom:2px; }
.lesson-meaning { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-muted); }
.lesson-note { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-soft); line-height:1.75; }
.lesson-coming { text-align:center; padding:48px 24px; display:flex; flex-direction:column; align-items:center; gap:10px; }
.lesson-coming-icon { font-size:36px; }
.lesson-coming-text { font-family:'Noto Sans TC',sans-serif; font-size:13px; color:var(--ink-muted); line-height:1.75; }
@media(max-width:700px){ .lesson-grid{grid-template-columns:1fr;} .lesson-card{border-right:none;border-bottom:2px solid var(--ink);} .lesson-card:last-child{border-bottom:none;} }
/* LINE QR STRIP */
.line-strip { background:var(--gold-light); border-top:3px solid var(--ink); border-bottom:3px solid var(--ink); padding:64px 32px; text-align:center; }
.line-strip-inner { max-width:480px; margin:0 auto; display:flex; flex-direction:column; align-items:center; gap:28px; }
.line-qr-box { width:140px; height:140px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px; flex-shrink:0; }
.line-qr-box svg { width:96px; height:96px; }
.line-qr-label { font-family:'Noto Sans TC',sans-serif; font-size:10px; letter-spacing:2px; color:var(--ink-muted); }
.line-strip-text { display:flex; flex-direction:column; align-items:center; }
.line-strip-title { font-family:'Noto Serif TC',serif; font-size:clamp(22px,3vw,30px); font-weight:900; color:var(--ink); margin-bottom:8px; line-height:1.3; }
.line-strip-sub { font-family:'Noto Sans TC',sans-serif; font-size:15px; color:var(--ink-soft); line-height:1.85; margin-bottom:20px; }
.line-strip-btn { display:inline-block; background:var(--ink); color:var(--white); font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:14px; padding:14px 28px; border:none; cursor:pointer; letter-spacing:1px; text-decoration:none; transition:background 0.2s; }
.line-strip-btn:hover { background:#333; }
/* FAQ */
#faq { background:var(--white); }
.faq-list { border:2px solid var(--ink); }
.faq-item { border-bottom:2px solid var(--ink); overflow:hidden; }
.faq-item:last-child { border-bottom:none; }
.faq-q { width:100%; text-align:left; padding:22px 28px; background:none; border:none; cursor:pointer; display:flex; justify-content:space-between; align-items:center; gap:16px; font-family:'Noto Serif TC',serif; font-size:16px; font-weight:700; color:var(--ink); transition:background 0.2s; }
.faq-q:hover,.faq-q.open { background:var(--gold-light); }
.faq-icon { font-size:20px; color:var(--gold); flex-shrink:0; transition:transform 0.3s; font-style:normal; }
.faq-q.open .faq-icon { transform:rotate(45deg); }
.faq-a { max-height:0; overflow:hidden; transition:max-height 0.4s ease,padding 0.3s; padding:0 28px; font-family:'Noto Sans TC',sans-serif; font-size:15px; line-height:1.95; color:var(--ink-soft); }
.faq-a.open { max-height:500px; padding:20px 28px 24px; border-top:1px solid var(--border); }
/* RULES */
#rules { background:var(--white); }
.rules-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:0; border:2px solid var(--ink); margin-top:48px; }
.rule-card { padding:32px 28px; border-right:2px solid var(--ink); border-bottom:2px solid var(--ink); }
.rule-card:last-child { border-right:none; }
.rule-icon { font-size:28px; margin-bottom:12px; display:block; }
.rule-title { font-family:'Noto Serif TC',serif; font-size:16px; font-weight:900; color:var(--ink); margin-bottom:14px; padding-bottom:10px; border-bottom:1px solid var(--gold); }
.rule-list { list-style:none; }
.rule-list li { font-family:'Noto Sans TC',sans-serif; font-size:14px; line-height:1.8; color:var(--ink-soft); padding:6px 0; display:flex; gap:8px; align-items:flex-start; }
.rule-list li::before { content:'—'; color:var(--gold); flex-shrink:0; }
/* CTA */
#cta { background:var(--gold-light); border-top:3px solid var(--ink); text-align:center; padding:100px 32px 120px; }
.cta-thai { font-family:'Sarabun',sans-serif; font-size:clamp(18px,2.5vw,26px); font-weight:300; letter-spacing:6px; color:var(--gold); margin-bottom:16px; display:block; }
.cta-title { font-family:'Noto Serif TC',serif; font-size:clamp(36px,6vw,72px); font-weight:900; color:var(--ink); line-height:1.12; margin-bottom:20px; }
.cta-reasons { font-family:'Noto Sans TC',sans-serif; font-size:clamp(14px,1.8vw,17px); color:var(--ink-soft); line-height:2.1; margin-bottom:24px; }
.cta-question { font-family:'Noto Serif TC',serif; font-size:clamp(20px,3vw,30px); font-weight:900; color:var(--ink); margin-bottom:48px; line-height:1.4; }
.cta-question span { color:var(--gold); display:block; }
.cta-btn { background:var(--gold-bright); color:var(--ink); font-family:'Noto Sans TC',sans-serif; font-weight:900; font-size:16px; padding:20px 64px; border:none; cursor:pointer; letter-spacing:1px; transition:all 0.25s; }
.cta-btn:hover { background:#b07820; transform:translateY(-3px); box-shadow:0 10px 28px rgba(0,0,0,0.2); }
.cta-accompany { margin-top:28px; font-family:'Noto Sans TC',sans-serif; font-size:15px; color:var(--ink-muted); line-height:1.8; }
/* FOOTER */
footer { text-align:center; padding:28px 24px 72px; font-family:'Noto Sans TC',sans-serif; font-size:12px; letter-spacing:2px; color:var(--ink-muted); background:var(--off-white); border-top:1px solid var(--border); }
@keyframes fadeUp { from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);} }
@keyframes pulse { 0%,100%{opacity:0.3;}50%{opacity:0.8;} }
/* === REVEAL ANIMATION SYSTEM === */
.reveal, .reveal-left, .reveal-right { opacity:0; }
.reveal { transform:translateY(48px); transition:opacity 0.7s ease, transform 0.7s ease; }
.reveal-left { transform:translateY(64px); transition:opacity 1.6s ease, transform 1.6s cubic-bezier(0.22,1,0.36,1); }
.reveal-right { transform:translateY(64px); transition:opacity 1.6s ease, transform 1.6s cubic-bezier(0.22,1,0.36,1); }
.reveal.visible, .reveal-left.visible, .reveal-right.visible { opacity:1; transform:none; }
/* Speed overrides */
.reveal.reveal-slow { transition:opacity 1.6s ease, transform 1.6s cubic-bezier(0.22,1,0.36,1); transform:translateY(64px); }
.reveal.reveal-fast { transition:opacity 0.35s ease, transform 0.35s ease; transform:translateY(28px); }
.reveal.reveal-slow.visible { opacity:1; transform:none; }
.reveal.reveal-fast.visible { opacity:1; transform:none; }
/* Stagger delays */
.reveal-delay-1 { transition-delay:0s; }
.reveal-delay-2 { transition-delay:0.13s; }
.reveal-delay-3 { transition-delay:0.26s; }
.reveal-delay-4 { transition-delay:0.39s; }
@media(max-width:900px){
.problems-grid{grid-template-columns:repeat(2,1fr);}
.problem-card:nth-child(2){border-right:none;}
.problem-card:nth-child(1),.problem-card:nth-child(2){border-bottom:2px solid var(--ink);}
.pricing-grid{grid-template-columns:1fr;}
.plan-card{border-right:none;border-bottom:2px solid var(--ink);}
.plan-card.featured{border-bottom-color:var(--ink);}
.plan-card:last-child{border-bottom:none;}
}
@media(max-width:600px){
.problems-grid,.how-grid,.rules-grid{grid-template-columns:1fr;}
.problem-card,.how-card,.rule-card{border-right:none;border-bottom:2px solid var(--ink);}
.stats-inner{flex-direction:column;}
.stat{border-right:none;border-bottom:2px solid var(--ink);}
.stat:last-child{border-bottom:none;}
.section-wrap{padding:72px 20px;}
#interpreter .section-wrap > div[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important;}
#interpreter .section-wrap > div[style*="grid-template-columns:1fr 1fr"] > div:first-child{border-right:none!important;border-bottom:2px solid rgba(255,255,255,0.12);}
}
/* FLOATING LINE QR */
.floating-qr { position:fixed; top:72px; right:16px; z-index:998; background:var(--ink); border:2px solid var(--gold-bright); padding:10px 10px 8px; display:flex; flex-direction:column; align-items:center; gap:5px; opacity:0; pointer-events:none; transition:opacity 0.3s ease, transform 0.3s ease; transform:translateY(-8px); box-shadow:0 4px 20px rgba(0,0,0,0.3); }
.floating-qr.visible { opacity:1; pointer-events:auto; transform:translateY(0); }
.floating-qr img { width:76px; height:76px; display:block; }
.floating-qr-top { font-family:'Noto Sans TC',sans-serif; font-size:9px; font-weight:700; letter-spacing:0.5px; color:var(--gold-bright); text-align:center; }
.floating-qr-label { font-family:'Noto Sans TC',sans-serif; font-size:8px; letter-spacing:1px; color:rgba(255,255,255,0.5); text-align:center; }
.floating-qr-close { position:absolute; top:3px; right:5px; background:none; border:none; font-size:12px; cursor:pointer; color:rgba(255,255,255,0.4); line-height:1; }
.floating-qr-close:hover { color:var(--white); }
@media(max-width:600px){ .floating-qr { top:68px; right:8px; } .floating-qr img { width:64px; height:64px; } }
/* ── BOTTOM PAGE NAV STRIP ── */
.page-strip{position:fixed;bottom:0;left:0;right:0;z-index:990;background:rgba(17,17,17,0.97);border-top:1px solid rgba(200,151,58,0.3);display:flex;justify-content:center;align-items:center;height:44px;padding-bottom:env(safe-area-inset-bottom,0);}
.page-strip-label{font-family:'Noto Sans TC',sans-serif;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,0.4);margin-right:16px;text-transform:uppercase;}
.page-strip a{font-family:'Noto Sans TC',sans-serif;font-size:12px;font-weight:500;color:rgba(255,255,255,0.7);text-decoration:none;padding:6px 18px;border:1px solid rgba(255,255,255,0.3);margin:0 4px;white-space:nowrap;transition:color 0.2s ease,border-color 0.2s ease;}
.page-strip a:hover{color:var(--white);border-color:rgba(255,255,255,0.6);}
.page-strip a.active{font-weight:900;color:#C8973A;border-color:rgba(200,151,58,0.5);background:rgba(200,151,58,0.1);}
@media(max-width:600px){
.page-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:3px;padding:0 5px env(safe-area-inset-bottom,0);height:48px;align-content:center;}
.page-strip-label{display:none;}
.page-strip a{margin:0;padding:8px 1px;text-align:center;font-size:clamp(9px,2.6vw,11px);letter-spacing:0;}
}
/* ═══════════════════════════════════════════
COLOR HIGHLIGHTS & SUBTLE GRADIENTS
═══════════════════════════════════════════ */
/* Warm gold gradient for accent words, prices, stats & slogans.
(Body text & emoji-bearing headings stay solid for legibility.) */
.hero-title .accent,
.cta-question span,
.answer-quote em,
.teacher-story-title em,
.section-heading em,
.cta-thai,
.slogan-big,
.stat-num,
.plan-price,
.plan-card.featured .plan-price,
.pair-price-val,
.prog-hours {
background:linear-gradient(120deg,#A8780F 0%,#8B6310 48%,#5A3E0A 100%);
-webkit-background-clip:text; background-clip:text;
-webkit-text-fill-color:transparent; color:transparent;
}
/* keep the secondary Chinese line inside the slogan solid & readable */
.slogan-big .zh { -webkit-text-fill-color:var(--ink-muted); color:var(--ink-muted); background:none; }
/* Soft brighter gradient for the hero accent (large display text) */
.hero-title .accent {
background:linear-gradient(120deg,#C8973A 0%,#8B6310 55%,#5A3E0A 100%);
-webkit-background-clip:text; background-clip:text;
-webkit-text-fill-color:transparent;
}
/* Cream → gold feature-card gradients (echoes the 字母練習區 entry card) */
.problem-card { background:linear-gradient(180deg,#FFFFFF 0%,#FBF5E7 100%); transition:background 0.25s, box-shadow 0.25s, transform 0.2s; }
.problem-card:hover { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); box-shadow:0 12px 28px rgba(139,99,16,0.12); transform:translateY(-2px); }
.how-card { transition:background 0.25s, box-shadow 0.25s; }
.how-card:nth-child(even) { background:linear-gradient(180deg,#FBF5E7 0%,#F4E8CF 100%); }
.how-card:hover { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); box-shadow:0 12px 28px rgba(139,99,16,0.10); }
.lesson-card { background:linear-gradient(180deg,#FFFFFF 0%,#FBF5E7 100%); transition:background 0.25s, box-shadow 0.25s; }
.lesson-card:hover { box-shadow:0 12px 28px rgba(139,99,16,0.10); }
.rule-card { background:linear-gradient(180deg,#FFFFFF 0%,#FBF5E7 100%); transition:background 0.25s, box-shadow 0.25s; }
.rule-card:hover { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); box-shadow:0 12px 28px rgba(139,99,16,0.10); }
.plan-card { background:linear-gradient(180deg,#FFFFFF 0%,#FCF7EC 100%); }
/* Subtle gradient depth on the warm bands */
.stats-band { background:linear-gradient(180deg,#F8EFD6 0%,#F1E0BA 100%); }
#cta { background:linear-gradient(180deg,#FBF5E7 0%,#F1E0BA 100%); }
.line-strip { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); }
.avail-band { background:linear-gradient(180deg,#FBF5E7 0%,#F3E4C2 100%); }
/* Gold accent bar under section headings for a refined highlight */
.eyebrow { background:linear-gradient(90deg,#A8780F,#8B6310); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; color:transparent; }
/* ═══════════════════════════════════════════
DIFFICULTY COLOUR-GRADING (easy→hard, light→dark)
Unified with the tone-finder level cards.
═══════════════════════════════════════════ */
/* — Learning progress timeline: stage 1→4 green→amber→coral→deep — */
.prog-step:nth-child(1) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d1-bg) 100%); }
.prog-step:nth-child(2) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d2-bg) 100%); }
.prog-step:nth-child(3) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d3-bg) 100%); }
.prog-step:nth-child(4) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d4-bg) 100%); }
.prog-step:nth-child(1) .prog-circle { background:var(--d1); border-color:var(--d1); color:#fff; }
.prog-step:nth-child(2) .prog-circle { background:var(--d2); border-color:var(--d2); color:#fff; }
.prog-step:nth-child(3) .prog-circle { background:var(--d3); border-color:var(--d3); color:#fff; }
.prog-step:nth-child(4) .prog-circle { background:var(--d4); border-color:var(--d4); color:#fff; }
.prog-step:nth-child(1) .prog-title, .prog-step:nth-child(1) .prog-hours { color:var(--d1); -webkit-text-fill-color:var(--d1); }
.prog-step:nth-child(2) .prog-title, .prog-step:nth-child(2) .prog-hours { color:var(--d2); -webkit-text-fill-color:var(--d2); }
.prog-step:nth-child(3) .prog-title, .prog-step:nth-child(3) .prog-hours { color:var(--d3); -webkit-text-fill-color:var(--d3); }
.prog-step:nth-child(4) .prog-title, .prog-step:nth-child(4) .prog-hours { color:var(--d4); -webkit-text-fill-color:var(--d4); }
/* — Lesson preview cards: 1→3 green→amber→coral — */
.lesson-card:nth-child(1) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d1-bg) 100%); }
.lesson-card:nth-child(2) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d2-bg) 100%); }
.lesson-card:nth-child(3) { background:linear-gradient(180deg,#FFFFFF 0%,var(--d3-bg) 100%); }
.lesson-card:nth-child(1) .lesson-card-tag { color:var(--d1); }
.lesson-card:nth-child(2) .lesson-card-tag { color:var(--d2); }
.lesson-card:nth-child(3) .lesson-card-tag { color:var(--d3); }
.lesson-card:nth-child(1) .lesson-sample { border-left-color:var(--d1); }
.lesson-card:nth-child(2) .lesson-sample { border-left-color:var(--d2); }
.lesson-card:nth-child(3) .lesson-sample { border-left-color:var(--d3); }
/* — Pricing tiers: Basic (beginner) green → Standard (higher) coral — */
.pricing-grid .plan-card:nth-child(1) .plan-tag { color:var(--d1); }
.pricing-grid .plan-card:nth-child(2) .plan-tag { color:var(--d3); }