/* 侶試 PartnerTry — 介紹網站
   視覺沿用 App：米白畫紙、墨色文字、襯線標題、鉛筆水彩插畫 */
:root {
  --improve: #C4704B; --build: #5B8C5A; --bond: #5B7A8C;
  --bg: #FAF7F2; --paper: #F9F6EA; --surface: #FFFDF8;
  --ink: #3D342C; --ink2: #7D7064; --ink3: #A89C8F;
  --line: #E6DFD3; --line2: #D8CEBF; --note: #FBF3E1;
  --serif: 'Noto Serif TC', 'Songti TC', serif;
  --sans: 'Noto Sans TC', system-ui, sans-serif;
  --radius: 14px 18px 15px 20px / 18px 14px 20px 15px;
  --wrap: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--ink); background: var(--bg); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; letter-spacing: .02em; line-height: 1.35; text-wrap: balance; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.eyebrow { font-family: var(--serif); font-size: 14px; letter-spacing: .12em; color: var(--ink2); }
.muted { color: var(--ink2); }
.center { text-align: center; }

.nav { position: sticky; top: 0; z-index: 10; background: rgba(250, 247, 242, .92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--serif); font-weight: 900; font-size: 24px; letter-spacing: .14em; text-decoration: none; display: flex; align-items: baseline; gap: 10px; }
.logo small { font-size: 11px; letter-spacing: .2em; color: var(--ink3); }

.btn { display: inline-flex; align-items: center; justify-content: center; font: 500 16px var(--sans); text-decoration: none; padding: 14px 26px; border-radius: 14px 16px 13px 17px; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--ink); color: #FFFDF8; }
.btn-primary:hover { background: #2B241E; }
.btn-secondary { background: transparent; border-color: var(--line2); color: var(--ink); }
.btn-small { padding: 8px 16px; font-size: 14px; }
.btn.is-soon { background: var(--line); color: var(--ink2); cursor: default; }

.hero { padding: 56px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(34px, 5.2vw, 56px); margin: 12px 0 18px; }
.hero .lead { font-size: 18px; color: var(--ink2); max-width: 30em; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero .note { font-size: 13px; color: var(--ink3); margin-top: 12px; }
.hero-video { border-radius: 22px; background: var(--paper); box-shadow: 0 30px 60px -30px rgba(61, 52, 44, .35); width: 100%; max-width: 440px; margin-left: auto; }

section { padding: 72px 0; }
.section-title { font-size: clamp(26px, 3.6vw, 36px); margin: 8px 0 14px; }
.section-lead { font-size: 17px; color: var(--ink2); max-width: 36em; }
.center .section-lead { margin: 0 auto; }

.pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 36px 0 12px; }
.pain { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; font-family: var(--serif); font-size: 18px; line-height: 1.6; text-align: left; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 36px; text-align: left; }
.pillar h3 { font-size: 21px; margin-bottom: 4px; }
.pillar p { color: var(--ink2); font-size: 15px; }

.step { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 28px 0; }
.step.flip .step-text { order: 2; }
.step-num { font-family: var(--serif); font-size: 15px; color: var(--ink3); letter-spacing: .1em; }
.step h3 { font-size: 28px; margin: 6px 0 10px; }
.step p { color: var(--ink2); font-size: 17px; max-width: 26em; }
.phone { width: 100%; max-width: 300px; margin: 0 auto; border-radius: 34px; border: 8px solid #2c2621; box-shadow: 0 30px 60px -30px rgba(61, 52, 44, .4); background: var(--bg); overflow: hidden; }

.trees { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.tree-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px 26px; text-align: center; }
.tree-card .packet { width: 120px; margin: 0 auto 10px; transform: rotate(-3deg); }
.ribbon { display: inline-block; font-size: 12px; font-weight: 700; color: #fff; padding: 2px 10px; border-radius: 999px; margin-bottom: 6px; }
.ribbon.improve { background: var(--improve); } .ribbon.build { background: var(--build); } .ribbon.bond { background: var(--bond); }
.tree-card h3 { font-size: 24px; }
.tree-card p { color: var(--ink2); font-size: 15px; margin-top: 8px; text-align: left; }
.more-lead { margin-top: 48px; }
.more-packets { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: 20px; }
.more-packets figure { margin: 0; text-align: center; }
.more-packets img { width: 78%; margin: 0 auto 6px; transform: rotate(-2deg); }
.more-packets figcaption { font-size: 13px; color: var(--ink2); line-height: 1.5; }
.more-packets strong { display: block; color: var(--ink); font-size: 14px; }

.forest-img { width: 100%; max-width: 900px; margin: 12px auto 0; }

.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px; text-align: left; }
.trust > div { border-top: 1px dashed var(--line2); padding-top: 16px; }
.trust h3 { font-size: 19px; margin-bottom: 4px; }
.trust p { color: var(--ink2); font-size: 15px; }

.faq { max-width: 720px; margin: 28px auto 0; text-align: left; }
.faq details { border-bottom: 1px dashed var(--line2); padding: 16px 0; }
.faq summary { cursor: pointer; font-family: var(--serif); font-weight: 700; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '＋'; color: var(--ink3); }
.faq details[open] summary::after { content: '－'; }
.faq details p { color: var(--ink2); margin-top: 8px; }

.closing { text-align: center; padding: 88px 0 96px; }
.closing img { width: 220px; margin: 0 auto -10px; }
.closing h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 20px; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; color: var(--ink2); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer nav { display: flex; gap: 18px; }

.doc { max-width: 720px; margin: 0 auto; padding: 48px 20px 80px; }
.doc h1 { font-size: 32px; margin-bottom: 4px; }
.doc h2 { font-size: 20px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--ink2); }
.doc ul { padding-left: 22px; }
.doc .card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-top: 20px; }

.invite { max-width: 480px; margin: 0 auto; padding: 32px 20px 72px; text-align: center; }
.invite .packet { width: 58%; max-width: 230px; margin: 10px auto 6px; transform: rotate(-3deg); }
.invite h1 { font-size: 28px; margin-top: 6px; }
.invite .lead { color: var(--ink2); margin: 8px 0 24px; }
.invite ol { list-style: none; text-align: left; display: grid; gap: 12px; }
.invite li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.invite li b { font-family: var(--serif); font-size: 17px; display: block; margin-bottom: 6px; }
.invite .code { font-family: var(--serif); font-weight: 900; font-size: 36px; letter-spacing: .22em; padding: 6px 0 4px .22em; text-align: center; user-select: all; -webkit-user-select: all; }
.invite .platform { background: var(--note); border: 1px dashed #E3CFA6; border-radius: 12px; padding: 12px 14px; font-size: 14px; color: var(--ink2); margin-top: 16px; text-align: left; }

@media (max-width: 820px) {
  .hero { padding-top: 32px; }
  .hero .wrap, .step { grid-template-columns: 1fr; gap: 28px; }
  .hero-video { margin: 0 auto; }
  .step.flip .step-text { order: 0; }
  .pains, .pillars, .trees, .trust { grid-template-columns: 1fr; }
  .more-packets { grid-template-columns: repeat(3, 1fr); }
  section { padding: 52px 0; }
  .phone { max-width: 260px; }
}

.btn-block { width: 100%; }
.fine { font-size: 13px; margin-top: 14px; }
.spaced { margin-top: 32px; }