/* ============================================================
   如意精舍・青少年佛學營 2026 — 吉祥老師三堂課 共用樣式
   招牌風格：彩色卡片 + 光影動感 banner + 捲動揭示
   ============================================================ */

:root{
  --ink:#1d2024;
  --ink-soft:#4a5159;
  --line:#e9e6df;
  --paper:#ffffff;
  --paper-warm:#fbf8f2;
  /* 僧伽橘 / 蓮金 品牌色 */
  --saffron:#e8731c;
  --gold:#d4a017;
  /* 六色卡片盤 */
  --c1:#b8431c; --c2:#0c8599; --c3:#7048e8;
  --c4:#2f9e44; --c5:#d6336c; --c6:#e8590c;
  --radius:18px;
  --shadow-sm:0 1px 3px rgba(20,24,31,.06);
  --maxw:1080px;
  --font-zh:'PingFang TC','Apple LiGothic Medium','Microsoft JhengHei',sans-serif;
  --font-en:'Montserrat','PingFang TC',sans-serif;
  --font-serif:'Playfair Display','Noto Serif TC',serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-zh);
  color:var(--ink);
  background:var(--paper);
  font-size:19px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
img{max-width:100%}
a{color:var(--saffron);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- 頂部回首頁列 ---------- */
.topnav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.topnav .wrap{display:flex;align-items:center;gap:14px;height:54px}
.topnav .brand{font-weight:800;letter-spacing:.5px;font-size:17px}
.topnav .brand .dot{color:var(--saffron)}
.topnav .links{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.topnav .links a{
  font-size:14px;color:var(--ink-soft);padding:6px 12px;border-radius:999px;
  transition:.2s;
}
.topnav .links a:hover{background:var(--paper-warm);color:var(--ink);text-decoration:none}
.topnav .links a.here{background:var(--ink);color:#fff}

/* ---------- 光影動感 Banner ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  padding:74px 0 96px;
  background:linear-gradient(135deg,var(--b1),var(--b2) 55%,var(--b3));
}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(255,255,255,.55),transparent 70%);
  filter:blur(2px);pointer-events:none;
}
.hero::before{width:300px;height:300px;top:-90px;left:-40px;animation:orbDrift 14s ease-in-out infinite, orbGlow 7s ease-in-out infinite}
.hero::after{width:240px;height:240px;bottom:-70px;right:6%;animation:orbDrift 18s ease-in-out infinite reverse, orbGlow 9s ease-in-out infinite}
/* 斜向流光 */
.hero .sheen{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,transparent,rgba(255,255,255,.20) 50%,transparent);
  background-size:280% 100%;
  animation:sheen 8s linear infinite;
}
/* 底部白波浪 */
.hero .wave{
  position:absolute;left:0;right:0;bottom:-1px;height:80px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 80' preserveAspectRatio='none'%3E%3Cpath d='M0,40 C200,90 400,0 600,40 C800,80 1000,5 1200,40 L1200,80 L0,80 Z' fill='%23ffffff'/%3E%3C/svg%3E") no-repeat 50% 100%;
  background-size:100% 80px;
}
.hero .wrap{position:relative;z-index:2}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-en);font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;
  background:rgba(255,255,255,.18);padding:6px 14px;border-radius:999px;
  animation:bandUp .7s .05s both;
}
.hero h1{
  font-size:clamp(32px,6vw,56px);line-height:1.12;margin:18px 0 6px;font-weight:800;
  animation:bandUp .7s .12s both;
}
.hero .sub{
  font-family:var(--font-en);font-size:clamp(15px,2.4vw,20px);font-weight:600;letter-spacing:1px;
  color:rgba(255,255,255,.9);animation:bandUp .7s .2s both;
}
.hero .meta{
  display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;animation:bandUp .7s .3s both;
}
.hero .chip{
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  padding:7px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
}
.hero .chip b{font-weight:800}

@keyframes sheen{0%{background-position:120% 0}100%{background-position:-120% 0}}
@keyframes orbDrift{0%,100%{transform:translate(0,0)}50%{transform:translate(26px,-18px)}}
@keyframes orbGlow{0%,100%{opacity:.5}50%{opacity:1}}
@keyframes bandUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 區段 ---------- */
section{padding:54px 0}
section.alt{background:var(--paper-warm)}
.sec-head{margin-bottom:26px}
.sec-head .kicker{
  font-family:var(--font-en);font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent,var(--saffron));
}
.sec-head h2{font-size:clamp(24px,4vw,34px);margin:6px 0 0;font-weight:800;line-height:1.25}
.sec-head p.lead{color:var(--ink-soft);margin:10px 0 0;font-size:18px}

/* ---------- 彩色卡片 ---------- */
.grid{display:grid;gap:20px}
.grid.g2{grid-template-columns:repeat(2,1fr)}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g4{grid-template-columns:repeat(4,1fr)}

.card{
  position:relative;overflow:hidden;background:#fff;border-radius:var(--radius);
  padding:24px 22px;
  box-shadow:inset 5px 0 0 0 var(--accent), 0 1px 3px rgba(20,24,31,.05);
  transition:transform .26s cubic-bezier(.2,.7,.2,1), box-shadow .26s cubic-bezier(.2,.7,.2,1);
}
.card::after{
  content:"";position:absolute;right:-55px;top:-55px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%,var(--accent),transparent 70%);
  opacity:.08;z-index:0;transition:opacity .35s,transform .6s cubic-bezier(.22,.61,.36,1);
}
.card>*{position:relative;z-index:1}
.card:hover{
  transform:translateY(-8px);
  box-shadow:inset 5px 0 0 0 var(--accent), 0 26px 52px -18px var(--accent), 0 8px 18px rgba(20,24,31,.08);
}
.card:hover::after{opacity:.2;transform:scale(1.35)}
.card .num{font-family:var(--font-en);font-weight:800;font-size:13px;letter-spacing:1px;color:var(--accent)}
.card h3{margin:8px 0 8px;font-size:21px;font-weight:800;line-height:1.3}
.card p{margin:0;color:var(--ink-soft);font-size:17px;line-height:1.7}
.card .tag{display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--accent)}

/* 卡片循環色（:where 低權重，可被 inline 覆寫） */
:where(.card):nth-child(6n+1){--accent:var(--c1)}
:where(.card):nth-child(6n+2){--accent:var(--c2)}
:where(.card):nth-child(6n+3){--accent:var(--c3)}
:where(.card):nth-child(6n+4){--accent:var(--c4)}
:where(.card):nth-child(6n+5){--accent:var(--c5)}
:where(.card):nth-child(6n+6){--accent:var(--c6)}

/* ---------- 逐分鐘流程時間軸 ---------- */
.timeline{position:relative;margin:0;padding:0 0 0 4px;list-style:none}
.timeline::before{content:"";position:absolute;left:88px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl{display:grid;grid-template-columns:80px 1fr;gap:18px;padding:12px 0;position:relative}
.tl .time{
  text-align:right;font-family:var(--font-en);font-weight:800;font-size:15px;color:var(--accent,var(--saffron));
  padding-top:2px;
}
.tl .time small{display:block;font-weight:600;color:var(--ink-soft);font-size:12px}
.tl .body{position:relative;padding-left:24px}
.tl .body::before{
  content:"";position:absolute;left:-1px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--accent,var(--saffron));z-index:1;
}
.tl .body h4{margin:0 0 4px;font-size:18.5px;font-weight:800}
.tl .body p{margin:0;color:var(--ink-soft);font-size:16.5px;line-height:1.65}
.tl.star .body h4::before{content:"★ ";color:var(--gold)}

/* ---------- 講師口白 / 引言框 ---------- */
.script{
  background:#fff;border-radius:14px;padding:18px 20px 18px 22px;margin:14px 0;
  box-shadow:inset 5px 0 0 0 var(--accent,var(--saffron)),var(--shadow-sm);
}
.script .who{font-size:13px;font-weight:800;letter-spacing:1px;color:var(--accent,var(--saffron));text-transform:uppercase;font-family:var(--font-en)}
.script p{margin:6px 0 0;font-size:17.5px;line-height:1.75}
.script p.say{font-style:normal;color:var(--ink)}
.script p.say::before{content:"「";color:var(--accent,var(--saffron))}
.script p.say::after{content:"」";color:var(--accent,var(--saffron))}

/* ---------- 重點/提醒框 ---------- */
.callout{
  border-radius:14px;padding:18px 20px;margin:16px 0;font-size:17px;
  background:linear-gradient(180deg,rgba(232,115,28,.07),rgba(232,115,28,.03));
  border:1px solid rgba(232,115,28,.18);
}
.callout.warn{background:linear-gradient(180deg,rgba(214,51,108,.08),rgba(214,51,108,.03));border-color:rgba(214,51,108,.22)}
.callout.zen{background:linear-gradient(180deg,rgba(112,72,232,.07),rgba(112,72,232,.03));border-color:rgba(112,72,232,.2)}
.callout b{color:var(--ink)}
.callout .lbl{font-weight:800;display:block;margin-bottom:4px}

/* ---------- 清單 ---------- */
.checklist{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border-radius:12px;padding:12px 16px;
  box-shadow:var(--shadow-sm);border:1px solid var(--line);font-size:17px;
}
.checklist li .bx{flex:0 0 auto;width:22px;height:22px;border-radius:6px;border:2px solid var(--accent,var(--saffron));margin-top:3px}

/* ---------- 步驟泡泡 ---------- */
.steps{display:grid;gap:14px;counter-reset:s}
.step{display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start}
.step .n{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;
  font-family:var(--font-en);font-size:19px;background:var(--accent,var(--saffron));
}
.step h4{margin:6px 0 4px;font-size:18.5px}
.step p{margin:0;color:var(--ink-soft);font-size:16.5px}

/* ---------- 學習單下載提示 ---------- */
.handout{
  display:flex;gap:16px;align-items:center;background:#fff;border-radius:16px;padding:20px 22px;
  box-shadow:inset 5px 0 0 0 var(--gold),var(--shadow-sm);border:1px solid var(--line);
}
.handout .ic{font-size:34px}
.handout h4{margin:0 0 2px;font-size:18px}
.handout p{margin:0;color:var(--ink-soft);font-size:15.5px}

/* ---------- 頁尾 ---------- */
footer{background:#1b1e22;color:#cfd4da;padding:34px 0;font-size:14.5px;text-align:center;line-height:1.9}
footer b{color:#fff}
footer .org{color:var(--gold);font-weight:700}

/* ---------- 捲動揭示 ---------- */
html.mtn .rvl{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
html.mtn .rvl.in{opacity:1;transform:none}
/* 揭示後仍保留 hover 的快速過渡 */
html.mtn .card:hover{transition:transform .26s cubic-bezier(.2,.7,.2,1),box-shadow .26s cubic-bezier(.2,.7,.2,1)}

/* ---------- RWD ---------- */
@media(max-width:860px){
  body{font-size:18px}
  .grid.g3,.grid.g4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .grid.g2,.grid.g3,.grid.g4{grid-template-columns:1fr}
  .timeline::before{left:62px}
  .tl{grid-template-columns:56px 1fr;gap:12px}
  .topnav .brand{font-size:15px}
  .topnav .links a{padding:5px 9px;font-size:13px}
}