/* ===== Tokens ===== */
:root{
  --ink:#1b2430; --ink-soft:#3f4a5c; --muted:#66718a;
  --accent:#3a82cf; --accent-d:#2a66ab; --accent-soft:#eaf3fc;
  --gold:#c79a4a; --gold-soft:#f7efdd;
  --paper:#f8fbfe; --card:#ffffff; --line:#e0e8f2;
  --shadow:0 18px 50px -24px rgba(18,50,90,.42);
  --r:16px;
  --serif:"Noto Serif TC",serif; --sans:"Noto Sans TC",system-ui,sans-serif;
  --maxw:1140px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; font-family:var(--sans); color:var(--ink); background:var(--paper);
  line-height:1.75; -webkit-font-smoothing:antialiased; font-size:16.5px;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
em{font-style:normal; color:var(--accent); font-family:var(--serif);}
.kicker{display:inline-block; font-weight:700; font-size:.8rem; letter-spacing:3px; color:var(--accent); text-transform:uppercase; margin-bottom:14px;}
.kicker.light{color:#b9d3f2;}

/* ===== Buttons ===== */
.btn{
  --bg:var(--accent); --fg:#fff;
  display:inline-flex; align-items:center; gap:.4em; justify-content:center;
  background:var(--bg); color:var(--fg); font-family:var(--sans); font-weight:700;
  font-size:1rem; padding:14px 26px; border-radius:999px; border:0; cursor:pointer;
  box-shadow:0 10px 24px -12px rgba(29,87,165,.8); transition:transform .15s ease, box-shadow .15s ease, background .15s;
}
.btn:hover{transform:translateY(-2px); box-shadow:0 16px 30px -12px rgba(29,87,165,.9); background:var(--accent-d);}
.btn-ghost{background:transparent; color:var(--accent); box-shadow:none; border:1.5px solid var(--accent);}
.btn-ghost:hover{background:var(--accent-soft); color:var(--accent-d);}
.btn-sm{padding:9px 18px; font-size:.92rem;}
.btn-block{width:100%; padding:16px;}

/* ===== Nav ===== */
.nav{position:sticky; top:0; z-index:50; background:rgba(248,250,253,.86); backdrop-filter:blur(10px); border-bottom:1px solid transparent; transition:border-color .2s, box-shadow .2s;}
.nav.scrolled{border-color:var(--line); box-shadow:0 4px 20px -16px rgba(0,0,0,.4);}
.nav-in{display:flex; align-items:center; gap:24px; height:64px;}
.brand{font-family:var(--serif); font-weight:900; font-size:1.3rem; color:var(--accent); letter-spacing:1px;}
.brand span{font-family:var(--sans); font-weight:500; font-size:.7rem; color:var(--muted); letter-spacing:2px; margin-left:4px;}
.nav-links{display:flex; gap:26px; margin-left:auto;}
.nav-links a{color:var(--ink-soft); font-weight:500; font-size:.95rem;}
.nav-links a:hover{color:var(--accent);}
.nav .btn-sm{margin-left:4px;}

/* ===== Hero ===== */
.hero{padding:72px 0 84px; background:
   radial-gradient(1100px 500px at 78% -10%, var(--accent-soft) 0%, transparent 60%),
   radial-gradient(700px 400px at 0% 110%, var(--gold-soft) 0%, transparent 55%);}
.hero-in{display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;}
.eyebrow{display:inline-block; background:#fff; border:1px solid var(--line); color:var(--accent-d); font-weight:700; font-size:.8rem; letter-spacing:1px; padding:6px 14px; border-radius:999px; margin-bottom:20px;}
.hero h1{font-family:var(--serif); font-weight:900; font-size:3.2rem; line-height:1.18; margin:0 0 18px; letter-spacing:.5px;}
.lead{font-size:1.12rem; color:var(--ink-soft); max-width:30em; margin:0 0 28px;}
.lead b{color:var(--ink); font-weight:700;}
.hero-cta{display:flex; gap:14px; flex-wrap:wrap; margin-bottom:22px;}
.hero-meta{display:flex; gap:18px; flex-wrap:wrap; color:var(--muted); font-size:.92rem; font-weight:500;}
.hero-art{position:relative;}
.hero-card{background:#fff; padding:12px; border-radius:18px; box-shadow:var(--shadow); transform:rotate(1.4deg); transition:transform .3s;}
.hero-card:hover{transform:rotate(0);}
.hero-card img{border-radius:10px;}
.hero-badge{position:absolute; top:-14px; left:-14px; background:var(--gold); color:#fff; font-family:var(--serif); font-weight:900; width:58px; height:58px; border-radius:50%; display:grid; place-items:center; font-size:1.1rem; box-shadow:0 10px 20px -8px rgba(192,138,46,.8); transform:rotate(-8deg);}

/* ===== Sections ===== */
.section{padding:88px 0;}
.section.alt{background:#fff; border-block:1px solid var(--line);}
.sec-head{max-width:720px; margin:0 auto 52px; text-align:center;}
h2{font-family:var(--serif); font-weight:900; font-size:2.3rem; line-height:1.3; margin:0 0 16px; letter-spacing:.5px;}
.sub{font-size:1.08rem; color:var(--ink-soft); margin:0;}

/* stages */
.stages{display:flex; align-items:stretch; justify-content:center; gap:14px; margin-bottom:56px; flex-wrap:wrap;}
.stage{background:var(--card); border:1px solid var(--line); border-radius:var(--r); padding:22px 24px; flex:1; min-width:190px; max-width:260px; box-shadow:0 10px 30px -24px rgba(0,0,0,.5);}
.stage b{display:block; font-family:var(--serif); font-size:1.2rem; margin:10px 0 4px;}
.stage p{margin:0; color:var(--muted); font-size:.92rem;}
.stage-tag{font-size:.72rem; font-weight:700; letter-spacing:1px; padding:4px 10px; border-radius:999px;}
.stage-tag.dep{background:#eee; color:#777;}
.stage-tag.ind{background:var(--accent-soft); color:var(--accent-d);}
.stage-tag.inter{background:var(--gold-soft); color:var(--gold);}
.stage-arrow{align-self:center; color:var(--line); font-size:1.6rem; font-weight:700;}

/* habits */
.habits-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.habit{background:var(--card); border:1px solid var(--line); border-radius:var(--r); padding:24px 24px 22px; position:relative; transition:transform .18s, box-shadow .18s, border-color .18s;}
.habit:hover{transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--accent-soft);}
.habit.wide{grid-column:span 3; background:linear-gradient(100deg,var(--accent) 0%, var(--accent-d) 100%); color:#fff; border:0;}
.habit.wide h3,.habit.wide p,.habit.wide p b{color:#fff;}
.habit.wide .hn{background:rgba(255,255,255,.18); color:#fff;}
.hn{display:inline-grid; place-items:center; width:38px; height:38px; border-radius:11px; background:var(--accent-soft); color:var(--accent-d); font-family:var(--serif); font-weight:900; font-size:1.15rem; margin-bottom:12px;}
.habit h3{font-family:var(--serif); font-size:1.32rem; margin:0 0 6px;}
.habit p{margin:0; color:var(--ink-soft); font-size:.96rem;}
.habit p b{color:var(--accent);}

/* how */
.how-in{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;}
.steps{list-style:none; counter-reset:s; margin:0 0 30px; padding:0;}
.steps li{position:relative; padding:0 0 24px 0; border-left:2px solid var(--accent-soft); margin-left:8px; padding-left:28px;}
.steps li:last-child{border-color:transparent; padding-bottom:8px;}
.steps li::before{counter-increment:s; content:counter(s); position:absolute; left:-17px; top:-2px; width:32px; height:32px; background:var(--accent); color:#fff; border-radius:50%; display:grid; place-items:center; font-weight:700; font-family:var(--serif); box-shadow:0 0 0 4px var(--paper);}
.section.alt .steps li::before{box-shadow:0 0 0 4px #fff;}
.step-h{display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:1px; color:var(--gold); background:var(--gold-soft); padding:2px 9px; border-radius:6px; margin-bottom:4px;}
.steps b{display:block; font-family:var(--serif); font-size:1.2rem; margin:2px 0 4px;}
.steps p{margin:0; color:var(--ink-soft); font-size:.96rem;}
.how-art img{border-radius:14px; box-shadow:var(--shadow); border:8px solid #fff;}
.how-art figcaption{text-align:center; color:var(--muted); font-size:.85rem; margin-top:14px;}

/* get / email gate */
.section.get{background:linear-gradient(160deg,var(--accent-d) 0%, var(--accent) 100%); color:#fff;}
.get-card{display:grid; grid-template-columns:1fr 1fr; gap:0; background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.16); border-radius:24px; overflow:hidden;}
.get-left{padding:46px 44px;}
.get-left h2{color:#fff;}
.get-left p{color:#d8e6f8; font-size:1.02rem;}
.get-left p b{color:#fff;}
.get-list{list-style:none; padding:0; margin:22px 0 0; color:#eaf2fc;}
.get-list li{padding:6px 0; font-size:.98rem;}
.get-right{background:#fff; color:var(--ink); padding:42px 40px; display:flex; flex-direction:column; justify-content:center;}

.lead-form label{display:block; font-weight:700; font-size:.9rem; color:var(--ink-soft); margin-bottom:16px;}
.lead-form .req{color:#c0392b;}
.lead-form input{width:100%; margin-top:7px; padding:13px 15px; border:1.5px solid var(--line); border-radius:11px; font-family:var(--sans); font-size:1rem; background:var(--paper); transition:border-color .15s, box-shadow .15s;}
.lead-form input:focus{outline:0; border-color:var(--accent); box-shadow:0 0 0 4px var(--accent-soft); background:#fff;}
.form-err{color:#c0392b; font-size:.9rem; font-weight:600; margin:-6px 0 12px;}
.form-note{font-size:.8rem; color:var(--muted); margin:14px 0 0; line-height:1.6;}
.btn[disabled]{opacity:.6; cursor:not-allowed; transform:none;}

/* unlocked */
.unlocked{text-align:center;}
.unlocked-tick{width:60px; height:60px; margin:0 auto 14px; background:var(--accent-soft); color:var(--accent); border-radius:50%; display:grid; place-items:center; font-size:1.8rem; font-weight:900;}
.unlocked h3{font-family:var(--serif); font-size:1.5rem; margin:0 0 6px;}
.unlocked>p{color:var(--ink-soft); margin:0 0 20px;}
.dl{display:flex; align-items:center; gap:14px; text-align:left; border:1.5px solid var(--line); border-radius:13px; padding:14px 16px; margin-bottom:12px; transition:border-color .15s, background .15s, transform .15s;}
.dl:hover{transform:translateY(-2px);}
.dl-sheet:hover{border-color:var(--accent); background:var(--accent-soft);}
.dl-pdf:hover{border-color:var(--gold); background:var(--gold-soft);}
.dl-ic{font-size:1.5rem;}
.dl b{display:block; font-size:1.02rem;}
.dl small{color:var(--muted); font-size:.85rem;}
.unlocked-foot{font-size:.88rem; color:var(--muted); margin:14px 0 0;}

/* about */
.about-in{display:grid; grid-template-columns:auto 1fr; gap:48px; align-items:center;}
.about-avatar{width:150px; height:150px; border-radius:50%; background:linear-gradient(135deg,var(--accent),var(--accent-d)); color:#fff; display:grid; place-items:center; font-family:var(--serif); font-weight:900; font-size:2.6rem; letter-spacing:2px; box-shadow:var(--shadow);}
.about-copy p{color:var(--ink-soft);}
.about-copy b{color:var(--ink);}
.sign{font-family:var(--serif); font-size:1.15rem; color:var(--accent)!important; margin-top:18px;}
.handle{color:var(--muted); font-size:.95rem; font-family:var(--sans);}

/* book */
.section.book{background:var(--card);}
.book-in{display:grid; grid-template-columns:auto 1fr; gap:60px; align-items:center;}
.book-cover{position:relative; width:210px; height:300px; perspective:none;}
.book-face{position:relative; height:100%; background:linear-gradient(150deg,#1f5fa8,#123f7a); border-radius:6px 12px 12px 6px; box-shadow:var(--shadow); color:#fff; padding:30px 26px; display:flex; flex-direction:column; justify-content:center; gap:6px; border-left:8px solid var(--gold);}
.book-spine{position:absolute; left:-8px; top:6px; bottom:6px; width:8px; background:var(--gold); border-radius:4px 0 0 4px;}
.book-k{font-size:.72rem; letter-spacing:2px; color:var(--gold-soft); font-weight:700;}
.book-face b{font-family:var(--serif); font-size:2rem; font-weight:900; line-height:1.1;}
.book-face small{font-size:.95rem; color:#cfe0f5;}
.book-face em{margin-top:auto; font-family:var(--sans); font-style:normal; font-size:.82rem; color:#9fb8d9; letter-spacing:1px;}
.book-copy h2{margin-bottom:18px;}
.book-copy p{color:var(--ink-soft);}
blockquote{margin:24px 0; padding:18px 24px; border-left:4px solid var(--gold); background:var(--gold-soft); border-radius:0 10px 10px 0; font-family:var(--serif); font-size:1.18rem; color:var(--accent-d); line-height:1.7;}
.book-cta{margin-top:24px;}

/* footer */
.footer{background:var(--ink); color:#cdd6d3; padding:54px 0 40px; text-align:center;}
.foot-brand{font-family:var(--serif); font-weight:900; font-size:1.4rem; color:#fff;}
.foot-brand span{font-family:var(--sans); font-weight:500; font-size:.72rem; color:#8a9bb3; letter-spacing:2px; margin-left:5px;}
.foot-in p{margin:10px 0 0;}
.foot-fine{font-size:.8rem; color:#7e8ba3; margin-top:22px!important; line-height:1.7;}

/* ===== Responsive ===== */
@media (max-width:900px){
  .hero-in,.how-in,.get-card,.about-in,.book-in{grid-template-columns:1fr; gap:36px;}
  .hero h1{font-size:2.5rem;}
  .nav-links{display:none;}
  .habits-grid{grid-template-columns:1fr 1fr;}
  .habit.wide{grid-column:span 2;}
  .stage-arrow{transform:rotate(90deg);}
  .about-in{justify-items:center; text-align:center;}
  .book-in{justify-items:center; text-align:center;}
}
@media (max-width:560px){
  body{font-size:16px;}
  .hero h1{font-size:2.1rem;}
  h2{font-size:1.85rem;}
  .section{padding:64px 0;}
  .get-left,.get-right{padding:32px 24px;}
  .habits-grid{grid-template-columns:1fr;}
  .habit.wide{grid-column:span 1;}
  .hero-meta{gap:10px; font-size:.85rem;}
}