/* Agent 工作流零基礎課 ─ 招生頁 */
/* 配色基於 Mika 咪卡奶茶色系 */

:root {
  --bg: #fafaf7;
  --bg-alt: #f3efe7;
  --bg-card: #ffffff;
  --text: #2b2b2b;
  --text-soft: #6b6b6b;
  --border: #e3ddd0;
  --accent: #8a6f4a;       /* 奶茶主色 */
  --accent-light: #c9b490; /* 奶茶亮 */
  --accent-deep: #5a4632;  /* 奶茶深 */
  --highlight: #d4a574;    /* 強調米黃 */
  --side-bg: #f7f3ea;
  --shadow-sm: 0 2px 8px rgba(90, 70, 50, 0.06);
  --shadow-md: 0 8px 24px rgba(90, 70, 50, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 130px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", "Heiti TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* Top Nav */
.topnav {
  position: sticky;
  top: 0;
  background: rgba(250, 250, 247, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  height: 60px;
}
.topnav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topnav-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}
.topnav-cta {
  padding: 9px 20px;
  background: var(--accent);
  color: white !important;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.topnav-cta:hover {
  background: var(--accent-deep);
  text-decoration: none;
  transform: translateY(-1px);
}

/* Sticky Tabs */
.tabs {
  position: sticky;
  top: 60px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 99;
}
.tabs-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
}
.tabs a {
  padding: 14px 18px;
  font-size: 15px;
  color: var(--text-soft);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all 0.2s;
}
.tabs a:hover {
  color: var(--text);
  text-decoration: none;
}
.tabs a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 500;
}

/* Layout: Left + Right Sticky */
.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 60px;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
}
.main-col { min-width: 0; }
.side-col { min-width: 0; }

/* Hero */
.hero {
  padding: 32px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}
.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.pill {
  padding: 5px 14px;
  background: var(--bg-alt);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.hero h1 {
  font-size: 38px;
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero .hl {
  background: linear-gradient(180deg, transparent 65%, var(--highlight) 65%);
  padding: 0 4px;
}
.hero-sub {
  font-size: 18px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}
.hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-soft);
  margin-bottom: 24px;
}
.hero-meta {
  font-size: 14px;
  color: var(--text-soft);
}

/* Section */
.section {
  margin-bottom: 56px;
  scroll-margin-top: 130px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: left;
}
.section-lead {
  font-size: 16px;
  color: var(--text-soft);
  margin-bottom: 28px;
}
.sub-section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
}
.card-sub {
  font-size: 16px;
  color: var(--text-soft);
  margin-bottom: 20px;
}
.card-bottom {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 16px;
  line-height: 1.8;
}

/* Numbered list */
.numbered {
  list-style: none;
  counter-reset: numbered-list;
  padding-left: 0;
}
.numbered li {
  counter-increment: numbered-list;
  padding-left: 40px;
  position: relative;
  margin-bottom: 14px;
  line-height: 1.8;
}
.numbered li::before {
  content: counter(numbered-list);
  position: absolute;
  left: 0;
  top: 2px;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}

/* Pain card */
.pain-card { background: var(--bg-alt); }
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pain-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.pain-col h4 {
  font-size: 16px;
  margin-bottom: 14px;
  color: var(--accent-deep);
}
.pain-col ul {
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
}
.pain-col li { margin-bottom: 10px; }

/* BEFORE / AFTER */
.ba-card { background: var(--bg-alt); }
.ba-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: var(--bg-card);
  border-radius: 10px;
  overflow: hidden;
}
.ba-table th {
  padding: 14px 18px;
  background: var(--accent);
  color: white;
  text-align: left;
  font-size: 15px;
}
.ba-table th:nth-child(2) { background: var(--accent-deep); }
.ba-table td {
  padding: 18px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  vertical-align: top;
  width: 50%;
}
.ba-table tr:last-child td { border-bottom: none; }
.ba-table em {
  display: inline-block;
  margin-top: 4px;
  color: var(--text-soft);
  font-size: 13px;
}

/* Case Card */
.case-card { background: linear-gradient(180deg, #fff 0%, var(--side-bg) 100%); }
.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent);
  color: white;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.ba-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  margin-top: 18px;
}
.flow-side {
  padding: 18px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.7;
}
.flow-before {
  background: #fff5f0;
  border: 1px solid #f3d9c8;
}
.flow-after {
  background: #f0f7ed;
  border: 1px solid #cfdec0;
}
.flow-side h4 {
  font-size: 13px;
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.flow-arrow {
  font-size: 32px;
  color: var(--accent);
  font-weight: 700;
}
.case-result {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--accent);
  color: white;
  border-radius: 8px;
  font-size: 15px;
}

/* Threshold */
.threshold-card { background: var(--bg-alt); text-align: center; }
.threshold-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}
.threshold-item {
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.threshold-item .check { color: #5a8240; }
.threshold-flow {
  margin-top: 24px;
  padding: 18px;
  background: var(--bg-card);
  border-radius: 10px;
  font-size: 17px;
  font-weight: 500;
}
.threshold-flow em {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-soft);
  font-weight: 400;
}

/* Method card */
.method-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 20px 0 24px;
}
.method-step {
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 22px 18px;
  text-align: center;
  position: relative;
}
.step-num {
  display: inline-flex;
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 12px;
}
.method-step h4 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--accent-deep);
}
.method-step p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
}
.method-bottom {
  text-align: center;
  padding: 18px;
  background: var(--bg-alt);
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.8;
}

/* Testimonial / benefits */
.benefits, .outcomes {
  list-style: none;
  padding: 0;
}
.benefits li, .outcomes li {
  padding: 12px 16px;
  background: var(--bg-alt);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 15px;
}

/* Audience grid */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 12px;
}
.audience-item {
  padding: 18px;
  background: var(--bg-alt);
  border-radius: 10px;
}
.audience-item h4 {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--accent-deep);
}
.audience-item p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
}

/* Audience 五要素 table */
.audience-card-not {
  background: linear-gradient(180deg, #fdf6e8 0%, var(--bg-card) 100%);
  border: 1px dashed var(--accent-light);
}
.audience-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.audience-table th {
  background: var(--accent);
  color: white;
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
}
.audience-card-not .audience-table th {
  background: var(--accent-deep);
}
.audience-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  font-size: 15px;
  vertical-align: top;
  line-height: 1.7;
}
.audience-table td:first-child {
  width: 30%;
  background: var(--bg-alt);
  color: var(--accent-deep);
  font-weight: 600;
}
.audience-hint {
  margin-top: 16px;
  padding: 14px 16px;
  background: var(--bg-alt);
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.7;
}

/* Tables */
.version-table, .schedule-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.version-table th, .schedule-table th {
  background: var(--bg-alt);
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-deep);
}
.version-table td, .schedule-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  font-size: 15px;
}

.checklist {
  list-style: none;
  padding: 0;
}
.checklist li {
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.7;
}

/* Instructor */
.instructor-card .quote-box {
  margin: 20px 0;
  padding: 20px 24px;
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
}
.instructor-card p { margin-bottom: 14px; }

/* FAQ */
details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 12px;
  transition: all 0.2s;
}
details[open] {
  background: var(--bg-alt);
  border-color: var(--accent-light);
}
summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  outline: none;
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::before {
  content: "+";
  display: inline-block;
  width: 24px;
  margin-right: 8px;
  color: var(--accent);
  font-weight: 700;
}
details[open] summary::before { content: "−"; }
.faq-content {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
}
.faq-content p { margin-bottom: 10px; line-height: 1.8; }

/* Closer */
.closer {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(180deg, var(--side-bg) 0%, var(--bg-alt) 100%);
  border-radius: 16px;
  margin-top: 40px;
}
.closer h2 {
  font-size: 26px;
  margin-bottom: 24px;
}
.closer p {
  font-size: 17px;
  margin-bottom: 16px;
  line-height: 1.9;
}
.closer-key {
  font-size: 24px !important;
  color: var(--accent-deep);
  margin: 24px 0 !important;
}
.closer-cat {
  font-size: 22px !important;
  margin-top: 32px !important;
  color: var(--accent);
}

/* Sticky Purchase Card */
.purchase-card {
  position: sticky;
  top: 130px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.purchase-cover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: white;
  padding: 32px 24px;
  text-align: center;
}
.purchase-emoji {
  font-size: 48px;
  margin-bottom: 8px;
}
.purchase-cover-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}
.purchase-cover-sub {
  font-size: 13px;
  opacity: 0.85;
}
.purchase-meta {
  padding: 18px 22px;
  background: var(--bg-alt);
  font-size: 14px;
}
.purchase-meta-row {
  padding: 4px 0;
  color: var(--text-soft);
}
.purchase-divider {
  height: 1px;
  background: var(--border);
  margin: 0 22px;
}
.purchase-section-title {
  padding: 18px 22px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-soft);
  letter-spacing: 1px;
}

.plan {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.plan:last-of-type { border-bottom: none; }
.plan-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-deep);
  margin-bottom: 4px;
}
.plan-time {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 12px;
}
.plan-price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.plan-price-tag {
  font-size: 12px;
  padding: 3px 10px;
  background: var(--bg-alt);
  border-radius: 999px;
  color: var(--accent-deep);
}
.plan-price-amount {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-deep);
}
.plan-btn {
  display: block;
  text-align: center;
  padding: 12px;
  background: var(--accent);
  color: white !important;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.plan-btn:hover {
  background: var(--accent-deep);
  text-decoration: none;
  transform: translateY(-1px);
}
.plan-btn-ghost {
  background: transparent;
  color: var(--accent) !important;
  border: 1px solid var(--accent);
}
.plan-btn-ghost:hover {
  background: var(--accent);
  color: white !important;
}
.plan-special {
  background: linear-gradient(180deg, var(--side-bg) 0%, transparent 100%);
}
.purchase-hint {
  padding: 18px 22px;
  background: var(--bg-alt);
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
  text-align: center;
}

/* Footer */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 40px;
  text-align: center;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  font-size: 14px;
  color: var(--text-soft);
}
.footer-brand {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.footer p { margin-bottom: 8px; }
.footer-copy {
  margin-top: 20px !important;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
}

/* Responsive */
@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .side-col { order: -1; }
  .purchase-card {
    position: static;
  }
  .pain-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .method-flow { grid-template-columns: 1fr; }
  .ba-flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); }
  .hero h1 { font-size: 28px; }
  .section-title { font-size: 24px; }
}

@media (max-width: 600px) {
  .layout { padding: 16px 16px 40px; }
  .card { padding: 20px; }
  .hero h1 { font-size: 24px; }
  .closer-key { font-size: 20px !important; }
}