:root{
  --purple:#5B4B8A; --purple-deep:#4A3F6B; --green:#6FA06B; --green-btn:#7BB37A;
  --warm:#FBF7F0; --lilac:#F3EAF6; --mint:#E8F1E6; --pinkp:#C9A8D4; --coral:#c98a6b;
  --line:#06C755; --ink:#2d2d3a; --muted:#7a7088; --card-border:#efe8f5;
  --maxw:1080px; --radius:16px; --shadow:0 8px 30px rgba(91,75,138,.12);
  --serif:"Noto Serif TC",Georgia,serif; --sans:"Noto Sans TC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{font-family:var(--sans);color:var(--ink);background:var(--warm);line-height:1.8}
img{max-width:100%;display:block}
.section__title{font-family:var(--serif);color:var(--purple);font-size:1.7rem;text-align:center;margin-bottom:1.5rem}
.btn{display:inline-block;border-radius:999px;padding:.7rem 1.6rem;font-weight:700;text-decoration:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--primary{background:var(--pinkp);color:#fff}
.btn--line{background:var(--line);color:#fff;font-size:1.05rem}
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:1rem;
  padding:.6rem 1.2rem;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);
  border-bottom:1px solid #eee}
.nav__brand{font-family:var(--serif);font-weight:700;color:var(--purple);text-decoration:none;font-size:1.1rem}
.nav__links{margin-left:auto;display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.nav__links a{color:var(--purple-deep);text-decoration:none;font-size:.9rem;
  background:var(--lilac);padding:.2rem .7rem;border-radius:999px;transition:background .15s}
.nav__links a:hover{background:#e7d6ee}
.nav__lang{display:inline-flex;align-items:center;gap:.3rem;cursor:pointer;
  border:1px solid var(--card-border);background:#fff;color:var(--purple-deep);
  padding:.2rem .6rem;border-radius:999px;font-size:.8rem;font-family:var(--sans);
  line-height:1;transition:transform .15s,box-shadow .15s}
.nav__lang:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.hero{text-align:center;padding:3rem 1.2rem 3.5rem;
  background:linear-gradient(160deg,var(--warm),var(--lilac) 50%,var(--mint))}
.hero__logo{width:min(360px,80%);margin:0 auto 1rem}
.hero__title{font-family:var(--serif);color:var(--purple-deep);font-size:1.9rem}
.hero__tagline{color:var(--muted);margin:.6rem 0 1.4rem}
section{padding:3rem 1.2rem;max-width:var(--maxw);margin:0 auto}
.about__lead,.join__lead{max-width:680px;margin:0 auto 1.6rem;text-align:center;color:#555}
.about__cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.feature{background:#fff;border-radius:var(--radius);padding:1.4rem;text-align:center;box-shadow:var(--shadow)}
.feature__icon{font-size:1.8rem}
.feature h3{color:var(--purple);margin:.5rem 0 .4rem;font-size:1.05rem}
.feature p{color:var(--muted);font-size:.9rem}
.stories{background:linear-gradient(180deg,var(--warm),#fff);border-radius:var(--radius)}
.stories__tabs{display:flex;justify-content:center;gap:.6rem;margin-bottom:1.4rem}
.tab{border:1px solid var(--card-border);background:#fff;color:var(--purple);
  padding:.45rem 1.2rem;border-radius:999px;cursor:pointer;font-family:var(--sans);font-size:.95rem}
.tab.is-active{background:var(--purple);color:#fff;border-color:var(--purple)}
.stories__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.story{background:#fff;border:1px solid var(--card-border);border-radius:var(--radius);padding:1.3rem;box-shadow:var(--shadow)}
.story__name{color:var(--purple);font-weight:700}
.story__role{color:var(--coral);font-size:.8rem;margin-left:.4rem}
.story__excerpt{color:#555;margin:.6rem 0}
.story__body{display:none;color:#444}
.story__body p{margin:.6rem 0}
.story.is-open .story__body{display:block}
.story__toggle{background:none;border:none;color:var(--purple);cursor:pointer;font-weight:700;padding:0;margin-top:.4rem;font-family:var(--sans)}
.gallery__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem}
.gallery__grid img{aspect-ratio:1;object-fit:cover;border-radius:10px;cursor:pointer;transition:transform .15s;width:100%}
.gallery__grid img:hover{transform:scale(1.03)}
.feedback{background:var(--lilac);border-radius:var(--radius)}
.feedback__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.quote{background:#fff;border-radius:var(--radius);padding:1.3rem;box-shadow:var(--shadow)}
.quote__text{font-style:italic;color:#555}
.quote__src{color:var(--muted);font-size:.85rem;margin-top:.6rem;text-align:right}
.videos__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.video iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:var(--radius)}
.video p{text-align:center;color:var(--muted);margin-top:.5rem}
.faq__list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:.7rem}
.faq__item{background:#fff;border:1px solid var(--card-border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq__q{list-style:none;cursor:pointer;padding:1.05rem 1.3rem;font-weight:700;color:var(--purple);
  display:flex;align-items:center;gap:.7rem}
.faq__q::-webkit-details-marker{display:none}
.faq__q::before{content:"Q";flex:none;width:1.6rem;height:1.6rem;border-radius:50%;
  background:var(--lilac);color:var(--purple);font-family:var(--serif);
  display:flex;align-items:center;justify-content:center;font-size:.95rem}
.faq__q::after{content:"▾";margin-left:auto;color:var(--muted);transition:transform .2s}
.faq__item[open] .faq__q::after{transform:rotate(180deg)}
.faq__a{padding:0 1.3rem 1.15rem 3.6rem;color:#555}
.join{text-align:center;background:linear-gradient(160deg,var(--mint),var(--lilac));border-radius:var(--radius)}
.join__id{color:var(--muted);font-size:.85rem;margin-top:.6rem}
.footer{text-align:center;color:#cfc6e6;background:var(--purple);padding:1.4rem}
.footer p{font-size:.85rem}
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.85);
  display:flex;flex-direction:column}
.lightbox[hidden]{display:none}
.lightbox__stage{flex:1;position:relative;display:flex;align-items:center;justify-content:center;min-height:0;padding:1rem}
.lightbox__img{max-width:90vw;max-height:100%;border-radius:8px}
.lightbox__close,.lightbox__nav{position:absolute;background:rgba(0,0,0,.45);
  color:#fff;border:none;cursor:pointer;border-radius:50%;
  display:flex;align-items:center;justify-content:center;line-height:1}
.lightbox__close{top:1rem;right:1rem;z-index:1;width:44px;height:44px;font-size:1.5rem}
.lightbox__nav{top:50%;transform:translateY(-50%);width:52px;height:52px;font-size:2rem;
  box-shadow:0 2px 8px rgba(0,0,0,.4)}
.lightbox__prev{left:1rem}.lightbox__next{right:1rem}
.lightbox__filmstrip{flex:none;display:flex;gap:.5rem;overflow-x:auto;
  padding:.7rem 1rem;background:rgba(0,0,0,.35);-webkit-overflow-scrolling:touch}
.lightbox__filmstrip img{flex:none;width:64px;height:64px;object-fit:cover;border-radius:6px;
  cursor:pointer;opacity:.5;border:2px solid transparent;transition:opacity .15s}
.lightbox__filmstrip img.is-active{opacity:1;border-color:#fff}
@media(max-width:760px){
  .nav__links{gap:.6rem;font-size:.8rem}
  .about__cards,.stories__grid,.feedback__grid,.videos__grid{grid-template-columns:1fr}
  .gallery__grid{grid-template-columns:repeat(3,1fr)}
  .hero__title{font-size:1.5rem}
  .lightbox__filmstrip img{width:52px;height:52px}
  .lightbox__nav{width:44px;height:44px;font-size:1.6rem}
}

/* ===== 報名入口：公告橫幅 / 浮動鈕 / 加入我們報名鈕 ===== */
.signup-ribbon{display:flex;align-items:center;
  background:linear-gradient(90deg,var(--green-btn),var(--green));color:#fff}
.signup-ribbon[hidden]{display:none}
.signup-ribbon__link{flex:1;display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
  padding:.55rem 1rem;color:#fff;text-decoration:none;font-weight:700;font-size:.95rem}
.signup-ribbon__cta{margin-left:auto;background:rgba(255,255,255,.22);
  padding:.12rem .8rem;border-radius:999px;white-space:nowrap}
.signup-ribbon__close{flex:none;background:none;border:none;color:#fff;
  font-size:1.4rem;line-height:1;padding:.3rem .9rem;cursor:pointer;opacity:.85}
.signup-ribbon__close:hover{opacity:1}

.signup-fab{position:fixed;right:1rem;bottom:1rem;z-index:60;
  display:inline-flex;align-items:center;gap:.35rem;
  background:var(--green-btn);color:#fff;text-decoration:none;font-weight:700;
  padding:.7rem 1.2rem;border-radius:999px;box-shadow:0 6px 18px rgba(123,179,122,.55);
  transition:transform .15s,box-shadow .15s}
.signup-fab:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(123,179,122,.75)}

.btn--signup{display:block;width:max-content;max-width:100%;margin:0 auto .8rem;
  background:var(--green-btn);color:#fff}

@media(max-width:760px){
  .signup-ribbon__link{font-size:.82rem;padding:.5rem .7rem;gap:.35rem}
  .signup-fab{padding:.6rem 1rem;font-size:.92rem;right:.7rem;bottom:.7rem}
}